0000911177 12-31 2024 Q3 FALSE http://fasb.org/us-gaap/2024#LongTermDebtAndCapitalLeaseObligations http://fasb.org/us-gaap/2024#LongTermDebtAndCapitalLeaseObligations xbrli:shares iso4217:USD iso4217:USD xbrli:shares cwst:vote cwst:state cwst:business cwst:subsidiary xbrli:pure 0000911177 2024-01-01 2024-09-30 0000911177 us-gaap:CommonClassAMember 2024-10-15 0000911177 us-gaap:CommonClassBMember 2024-10-15 0000911177 2024-09-30 0000911177 2023-12-31 0000911177 us-gaap:CommonClassAMember 2024-09-30 0000911177 us-gaap:CommonClassAMember 2023-12-31 0000911177 us-gaap:CommonClassBMember 2024-09-30 0000911177 us-gaap:CommonClassBMember 2023-12-31 0000911177 us-gaap:CommonClassBMember 2024-01-01 2024-09-30 0000911177 us-gaap:CommonClassBMember 2023-01-01 2023-12-31 0000911177 2024-07-01 2024-09-30 0000911177 2023-07-01 2023-09-30 0000911177 2023-01-01 2023-09-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2023-12-31 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassBMember 2023-12-31 0000911177 us-gaap:AdditionalPaidInCapitalMember 2023-12-31 0000911177 us-gaap:RetainedEarningsMember 2023-12-31 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2023-12-31 0000911177 2024-01-01 2024-03-31 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2024-01-01 2024-03-31 0000911177 us-gaap:AdditionalPaidInCapitalMember 2024-01-01 2024-03-31 0000911177 us-gaap:RetainedEarningsMember 2024-01-01 2024-03-31 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-01-01 2024-03-31 0000911177 2024-03-31 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2024-03-31 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassBMember 2024-03-31 0000911177 us-gaap:AdditionalPaidInCapitalMember 2024-03-31 0000911177 us-gaap:RetainedEarningsMember 2024-03-31 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-03-31 0000911177 2024-04-01 2024-06-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2024-04-01 2024-06-30 0000911177 us-gaap:AdditionalPaidInCapitalMember 2024-04-01 2024-06-30 0000911177 us-gaap:RetainedEarningsMember 2024-04-01 2024-06-30 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-04-01 2024-06-30 0000911177 2024-06-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2024-06-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassBMember 2024-06-30 0000911177 us-gaap:AdditionalPaidInCapitalMember 2024-06-30 0000911177 us-gaap:RetainedEarningsMember 2024-06-30 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-06-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2024-07-01 2024-09-30 0000911177 us-gaap:AdditionalPaidInCapitalMember 2024-07-01 2024-09-30 0000911177 us-gaap:RetainedEarningsMember 2024-07-01 2024-09-30 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-07-01 2024-09-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2024-09-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassBMember 2024-09-30 0000911177 us-gaap:AdditionalPaidInCapitalMember 2024-09-30 0000911177 us-gaap:RetainedEarningsMember 2024-09-30 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-09-30 0000911177 2022-12-31 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2022-12-31 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassBMember 2022-12-31 0000911177 us-gaap:AdditionalPaidInCapitalMember 2022-12-31 0000911177 us-gaap:RetainedEarningsMember 2022-12-31 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2022-12-31 0000911177 2023-01-01 2023-03-31 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2023-01-01 2023-03-31 0000911177 us-gaap:AdditionalPaidInCapitalMember 2023-01-01 2023-03-31 0000911177 us-gaap:RetainedEarningsMember 2023-01-01 2023-03-31 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2023-01-01 2023-03-31 0000911177 2023-03-31 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2023-03-31 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassBMember 2023-03-31 0000911177 us-gaap:AdditionalPaidInCapitalMember 2023-03-31 0000911177 us-gaap:RetainedEarningsMember 2023-03-31 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2023-03-31 0000911177 2023-04-01 2023-06-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2023-04-01 2023-06-30 0000911177 us-gaap:AdditionalPaidInCapitalMember 2023-04-01 2023-06-30 0000911177 us-gaap:RetainedEarningsMember 2023-04-01 2023-06-30 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2023-04-01 2023-06-30 0000911177 2023-06-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2023-06-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassBMember 2023-06-30 0000911177 us-gaap:AdditionalPaidInCapitalMember 2023-06-30 0000911177 us-gaap:RetainedEarningsMember 2023-06-30 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2023-06-30 0000911177 us-gaap:AdditionalPaidInCapitalMember 2023-07-01 2023-09-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2023-07-01 2023-09-30 0000911177 us-gaap:RetainedEarningsMember 2023-07-01 2023-09-30 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2023-07-01 2023-09-30 0000911177 2023-09-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassAMember 2023-09-30 0000911177 us-gaap:CommonStockMember us-gaap:CommonClassBMember 2023-09-30 0000911177 us-gaap:AdditionalPaidInCapitalMember 2023-09-30 0000911177 us-gaap:RetainedEarningsMember 2023-09-30 0000911177 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2023-09-30 0000911177 cwst:CollectionMember cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:CollectionMember cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:CollectionMember cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 cwst:CollectionMember cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 cwst:CollectionMember 2024-07-01 2024-09-30 0000911177 cwst:LandfillRevenueMember cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:LandfillRevenueMember cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:LandfillRevenueMember cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 cwst:LandfillRevenueMember cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 cwst:LandfillRevenueMember 2024-07-01 2024-09-30 0000911177 cwst:TransferStationMember cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:TransferStationMember cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:TransferStationMember cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 cwst:TransferStationMember cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 cwst:TransferStationMember 2024-07-01 2024-09-30 0000911177 cwst:TransportationMember cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:TransportationMember cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:TransportationMember cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 cwst:TransportationMember cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 cwst:TransportationMember 2024-07-01 2024-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 cwst:LandfillGasToEnergyMember 2024-07-01 2024-09-30 0000911177 cwst:ProcessingServicesMember cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:ProcessingServicesMember cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:ProcessingServicesMember cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 cwst:ProcessingServicesMember cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 cwst:ProcessingServicesMember 2024-07-01 2024-09-30 0000911177 cwst:NationalAccountsMember cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:NationalAccountsMember cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:NationalAccountsMember cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 cwst:NationalAccountsMember cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 cwst:NationalAccountsMember 2024-07-01 2024-09-30 0000911177 cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember 2024-07-01 2024-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:TransferredOverTimeMember 2024-07-01 2024-09-30 0000911177 cwst:CollectionMember cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:CollectionMember cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:CollectionMember cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 cwst:CollectionMember cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 cwst:CollectionMember 2023-07-01 2023-09-30 0000911177 cwst:LandfillRevenueMember cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:LandfillRevenueMember cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:LandfillRevenueMember cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 cwst:LandfillRevenueMember cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 cwst:LandfillRevenueMember 2023-07-01 2023-09-30 0000911177 cwst:TransferStationMember cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:TransferStationMember cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:TransferStationMember cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 cwst:TransferStationMember cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 cwst:TransferStationMember 2023-07-01 2023-09-30 0000911177 cwst:TransportationMember cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:TransportationMember cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:TransportationMember cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 cwst:TransportationMember cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 cwst:TransportationMember 2023-07-01 2023-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 cwst:LandfillGasToEnergyMember 2023-07-01 2023-09-30 0000911177 cwst:ProcessingServicesMember cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:ProcessingServicesMember cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:ProcessingServicesMember cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 cwst:ProcessingServicesMember cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 cwst:ProcessingServicesMember 2023-07-01 2023-09-30 0000911177 cwst:NationalAccountsMember cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:NationalAccountsMember cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:NationalAccountsMember cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 cwst:NationalAccountsMember cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 cwst:NationalAccountsMember 2023-07-01 2023-09-30 0000911177 cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember 2023-07-01 2023-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:TransferredOverTimeMember 2023-07-01 2023-09-30 0000911177 cwst:CollectionMember cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:CollectionMember cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:CollectionMember cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 cwst:CollectionMember cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 cwst:CollectionMember 2024-01-01 2024-09-30 0000911177 cwst:LandfillRevenueMember cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:LandfillRevenueMember cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:LandfillRevenueMember cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 cwst:LandfillRevenueMember cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 cwst:LandfillRevenueMember 2024-01-01 2024-09-30 0000911177 cwst:TransferStationMember cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:TransferStationMember cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:TransferStationMember cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 cwst:TransferStationMember cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 cwst:TransferStationMember 2024-01-01 2024-09-30 0000911177 cwst:TransportationMember cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:TransportationMember cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:TransportationMember cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 cwst:TransportationMember cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 cwst:TransportationMember 2024-01-01 2024-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 cwst:LandfillGasToEnergyMember 2024-01-01 2024-09-30 0000911177 cwst:ProcessingServicesMember cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:ProcessingServicesMember cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:ProcessingServicesMember cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 cwst:ProcessingServicesMember cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 cwst:ProcessingServicesMember 2024-01-01 2024-09-30 0000911177 cwst:NationalAccountsMember cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:NationalAccountsMember cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:NationalAccountsMember cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 cwst:NationalAccountsMember cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 cwst:NationalAccountsMember 2024-01-01 2024-09-30 0000911177 cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember 2024-01-01 2024-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:TransferredOverTimeMember 2024-01-01 2024-09-30 0000911177 cwst:CollectionMember cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:CollectionMember cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:CollectionMember cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 cwst:CollectionMember cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 cwst:CollectionMember 2023-01-01 2023-09-30 0000911177 cwst:LandfillRevenueMember cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:LandfillRevenueMember cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:LandfillRevenueMember cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 cwst:LandfillRevenueMember cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 cwst:LandfillRevenueMember 2023-01-01 2023-09-30 0000911177 cwst:TransferStationMember cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:TransferStationMember cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:TransferStationMember cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 cwst:TransferStationMember cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 cwst:TransferStationMember 2023-01-01 2023-09-30 0000911177 cwst:TransportationMember cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:TransportationMember cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:TransportationMember cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 cwst:TransportationMember cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 cwst:TransportationMember 2023-01-01 2023-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 cwst:LandfillGasToEnergyMember cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 cwst:LandfillGasToEnergyMember 2023-01-01 2023-09-30 0000911177 cwst:ProcessingServicesMember cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:ProcessingServicesMember cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:ProcessingServicesMember cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 cwst:ProcessingServicesMember cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 cwst:ProcessingServicesMember 2023-01-01 2023-09-30 0000911177 cwst:NationalAccountsMember cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:NationalAccountsMember cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:NationalAccountsMember cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 cwst:NationalAccountsMember cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 cwst:NationalAccountsMember 2023-01-01 2023-09-30 0000911177 cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:TransferredAtPointInTimeMember 2023-01-01 2023-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:TransferredOverTimeMember cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:TransferredOverTimeMember 2023-01-01 2023-09-30 0000911177 cwst:RebateRecycledOrReturnedOrganicMaterialsMember 2024-07-01 2024-09-30 0000911177 cwst:RebateRecycledOrReturnedOrganicMaterialsMember 2024-01-01 2024-09-30 0000911177 cwst:RebateRecycledOrReturnedOrganicMaterialsMember 2023-07-01 2023-09-30 0000911177 cwst:RebateRecycledOrReturnedOrganicMaterialsMember 2023-01-01 2023-09-30 0000911177 cwst:SolidWasteCollectionBusinessesMember 2023-01-01 2023-09-30 0000911177 srt:MinimumMember 2024-09-30 0000911177 srt:MaximumMember 2024-09-30 0000911177 cwst:TransferStationsAcquisitionMember 2024-01-01 2024-09-30 0000911177 cwst:TransferStationsAcquisitionMember 2023-01-01 2023-09-30 0000911177 cwst:TransferStationsAcquisitionMember 2024-09-30 0000911177 cwst:TransferStationsAcquisitionMember 2023-09-30 0000911177 cwst:TransferStationsAcquisitionMember us-gaap:TradeNamesMember 2024-09-30 0000911177 cwst:TransferStationsAcquisitionMember us-gaap:TradeNamesMember 2023-09-30 0000911177 cwst:TransferStationsAcquisitionMember us-gaap:NoncompeteAgreementsMember 2024-09-30 0000911177 cwst:TransferStationsAcquisitionMember us-gaap:NoncompeteAgreementsMember 2023-09-30 0000911177 cwst:TransferStationsAcquisitionMember us-gaap:CustomerRelationshipsMember 2024-09-30 0000911177 cwst:TransferStationsAcquisitionMember us-gaap:CustomerRelationshipsMember 2023-09-30 0000911177 cwst:EasternRegionMember 2023-12-31 0000911177 cwst:EasternRegionMember 2024-09-30 0000911177 cwst:WesternRegionMember 2023-12-31 0000911177 cwst:WesternRegionMember 2024-09-30 0000911177 cwst:MidAtlanticRegionMember 2023-12-31 0000911177 cwst:MidAtlanticRegionMember 2024-09-30 0000911177 cwst:ResourceSolutionsRegionMember 2023-12-31 0000911177 cwst:ResourceSolutionsRegionMember 2024-09-30 0000911177 us-gaap:NoncompeteAgreementsMember 2024-09-30 0000911177 us-gaap:CustomerRelationshipsMember 2024-09-30 0000911177 us-gaap:TradeNamesMember 2024-09-30 0000911177 us-gaap:NoncompeteAgreementsMember 2023-12-31 0000911177 us-gaap:CustomerRelationshipsMember 2023-12-31 0000911177 us-gaap:TradeNamesMember 2023-12-31 0000911177 cwst:TermLoanAFacilityDueDecember2029Member us-gaap:SecuredDebtMember 2024-09-30 0000911177 cwst:TermLoanAFacilityDueDecember2029Member us-gaap:SecuredDebtMember 2023-12-31 0000911177 cwst:AmendedTermLoanAFacilityDueDecember2026Member us-gaap:SecuredDebtMember 2024-09-30 0000911177 cwst:AmendedTermLoanAFacilityDueDecember2026Member us-gaap:SecuredDebtMember 2023-12-31 0000911177 cwst:TermLoanAFacilityDueDecember2026Member us-gaap:SecuredDebtMember 2024-09-30 0000911177 cwst:TermLoanAFacilityDueDecember2026Member us-gaap:SecuredDebtMember 2023-12-31 0000911177 cwst:RevolvingCreditFacilityDueDecember2029Member us-gaap:LineOfCreditMember 2024-01-01 2024-09-30 0000911177 cwst:RevolvingCreditFacilityDueDecember2029Member us-gaap:LineOfCreditMember 2024-09-30 0000911177 cwst:RevolvingCreditFacilityDueDecember2029Member us-gaap:LineOfCreditMember 2023-12-31 0000911177 cwst:RevolvingCreditFacilityDueDecember2026Member us-gaap:LineOfCreditMember 2024-09-30 0000911177 cwst:RevolvingCreditFacilityDueDecember2026Member us-gaap:LineOfCreditMember 2023-12-31 0000911177 cwst:RevenueBondsSeriesTwoThousandFourteenDueTwoThousandFortyFourMember us-gaap:UnsecuredDebtMember 2024-09-30 0000911177 cwst:RevenueBondsSeriesTwoThousandFourteenDueTwoThousandFortyFourMember us-gaap:UnsecuredDebtMember 2023-12-31 0000911177 cwst:RevenueBondSeriesTwoThousandFourteenRTwoDueTwoThousandFortyFourMember us-gaap:UnsecuredDebtMember 2024-09-30 0000911177 cwst:RevenueBondSeriesTwoThousandFourteenRTwoDueTwoThousandFortyFourMember us-gaap:UnsecuredDebtMember 2023-12-31 0000911177 cwst:RevenueBondsSeries2020DueSeptember2050Member us-gaap:UnsecuredDebtMember 2024-09-30 0000911177 cwst:RevenueBondsSeries2020DueSeptember2050Member us-gaap:UnsecuredDebtMember 2023-12-31 0000911177 cwst:RevenueBondsSeries2020R2DueSeptember2050Member us-gaap:UnsecuredDebtMember 2024-09-30 0000911177 cwst:RevenueBondsSeries2020R2DueSeptember2050Member us-gaap:UnsecuredDebtMember 2023-12-31 0000911177 cwst:FinanceAuthorityofMaineSolidWasteDisposalRevenueBondsSeries2005R3FAMEBonds2005R3Member us-gaap:UnsecuredDebtMember 2024-09-30 0000911177 cwst:FinanceAuthorityofMaineSolidWasteDisposalRevenueBondsSeries2005R3FAMEBonds2005R3Member us-gaap:UnsecuredDebtMember 2023-12-31 0000911177 cwst:FinanceAuthorityOfMaineSolidWasteDisposalRevenueBondsSeries2015R1Member us-gaap:UnsecuredDebtMember 2024-09-30 0000911177 cwst:FinanceAuthorityOfMaineSolidWasteDisposalRevenueBondsSeries2015R1Member us-gaap:UnsecuredDebtMember 2023-12-31 0000911177 cwst:FinanceAuthorityOfMaineSolidWasteDisposalRevenueBondsSeries2015R2Member us-gaap:UnsecuredDebtMember 2024-09-30 0000911177 cwst:FinanceAuthorityOfMaineSolidWasteDisposalRevenueBondsSeries2015R2Member us-gaap:UnsecuredDebtMember 2023-12-31 0000911177 cwst:LongTermRevenueBondSeriesTwoThousandThirteenDueTwoThousandThirtySixMember us-gaap:UnsecuredDebtMember 2024-09-30 0000911177 cwst:LongTermRevenueBondSeriesTwoThousandThirteenDueTwoThousandThirtySixMember us-gaap:UnsecuredDebtMember 2023-12-31 0000911177 cwst:LongTermRevenueBondsSeries2022A1DueJune2052Member us-gaap:UnsecuredDebtMember 2024-09-30 0000911177 cwst:LongTermRevenueBondsSeries2022A1DueJune2052Member us-gaap:UnsecuredDebtMember 2023-12-31 0000911177 cwst:RevenueBondSeriesTwoThousandThirteenDueTwoThousandTwentyNineMember us-gaap:UnsecuredDebtMember 2024-09-30 0000911177 cwst:RevenueBondSeriesTwoThousandThirteenDueTwoThousandTwentyNineMember us-gaap:UnsecuredDebtMember 2023-12-31 0000911177 cwst:NotesPayableMember 2024-09-30 0000911177 cwst:NotesPayableMember 2023-12-31 0000911177 cwst:CreditFacilityMember us-gaap:SecuredDebtMember 2024-09-30 0000911177 cwst:CreditFacilityMember us-gaap:RevolvingCreditFacilityMember us-gaap:LineOfCreditMember 2024-09-30 0000911177 cwst:CreditFacilityMember 2024-09-30 0000911177 cwst:CreditFacilityMember 2024-09-01 2024-09-30 0000911177 cwst:CreditFacilityMember us-gaap:LineOfCreditMember us-gaap:SecuredOvernightFinancingRateSofrMember srt:MinimumMember 2024-01-01 2024-09-30 0000911177 cwst:CreditFacilityMember us-gaap:LineOfCreditMember us-gaap:SecuredOvernightFinancingRateSofrMember srt:MaximumMember 2024-01-01 2024-09-30 0000911177 cwst:CreditFacilityMember us-gaap:LineOfCreditMember us-gaap:BaseRateMember srt:MinimumMember 2024-01-01 2024-09-30 0000911177 cwst:CreditFacilityMember us-gaap:LineOfCreditMember us-gaap:BaseRateMember srt:MaximumMember 2024-01-01 2024-09-30 0000911177 cwst:CreditFacilityMember srt:MinimumMember 2024-09-01 2024-09-30 0000911177 cwst:CreditFacilityMember srt:MaximumMember 2024-09-01 2024-09-30 0000911177 cwst:CreditFacilityMember us-gaap:LetterOfCreditMember us-gaap:LineOfCreditMember 2024-09-01 2024-09-30 0000911177 us-gaap:RevolvingCreditFacilityMember us-gaap:LineOfCreditMember 2024-09-30 0000911177 cwst:GFLEnvironmentalIncMember 2023-01-01 2023-09-30 0000911177 cwst:TwinBridgesAcquisitionMember 2023-01-01 2023-09-30 0000911177 us-gaap:InterestRateContractMember us-gaap:CashFlowHedgingMember 2024-09-30 0000911177 us-gaap:InterestRateContractMember us-gaap:CashFlowHedgingMember 2023-12-31 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember us-gaap:OtherCurrentAssetsMember 2024-09-30 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember us-gaap:OtherCurrentAssetsMember 2023-12-31 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember us-gaap:OtherNoncurrentAssetsMember 2024-09-30 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember us-gaap:OtherNoncurrentAssetsMember 2023-12-31 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember 2024-09-30 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember 2023-12-31 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember cwst:OtherAccruedLiabilitiesMember 2024-09-30 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember cwst:OtherAccruedLiabilitiesMember 2023-12-31 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember us-gaap:OtherNoncurrentLiabilitiesMember 2024-09-30 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember us-gaap:OtherNoncurrentLiabilitiesMember 2023-12-31 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-09-30 0000911177 us-gaap:InterestRateSwapMember us-gaap:DesignatedAsHedgingInstrumentMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2023-12-31 0000911177 us-gaap:CommonClassAMember 2024-09-19 2024-09-19 0000911177 us-gaap:CommonClassAMember 2024-09-19 0000911177 cwst:Amended2016PlanMember us-gaap:CommonClassAMember 2024-09-30 0000911177 cwst:A2016IncentivePlanMember us-gaap:CommonClassAMember 2024-09-30 0000911177 cwst:A2006IncentivePlanMember us-gaap:CommonClassAMember 2024-01-01 2024-09-30 0000911177 srt:MinimumMember 2024-01-01 2024-09-30 0000911177 srt:MaximumMember 2024-01-01 2024-09-30 0000911177 us-gaap:EmployeeStockOptionMember 2024-07-01 2024-09-30 0000911177 us-gaap:EmployeeStockOptionMember 2024-01-01 2024-09-30 0000911177 us-gaap:EmployeeStockOptionMember 2023-07-01 2023-09-30 0000911177 us-gaap:EmployeeStockOptionMember 2023-01-01 2023-09-30 0000911177 us-gaap:EmployeeStockOptionMember 2024-09-30 0000911177 cwst:RestrictedStockAwardsMember cwst:NonEmployeeDirectorMember 2024-01-01 2024-09-30 0000911177 us-gaap:RestrictedStockUnitsRSUMember cwst:NonEmployeeDirectorMember 2024-01-01 2024-09-30 0000911177 cwst:RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember 2023-12-31 0000911177 cwst:RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember 2024-01-01 2024-09-30 0000911177 cwst:RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember us-gaap:CommonClassAMember 2024-01-01 2024-09-30 0000911177 cwst:RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember 2024-09-30 0000911177 cwst:RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember us-gaap:ShareBasedCompensationAwardTrancheOneMember 2024-09-30 0000911177 cwst:RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember us-gaap:ShareBasedCompensationAwardTrancheOneMember 2024-01-01 2024-09-30 0000911177 cwst:PerformanceStockUnitMember 2024-01-01 2024-09-30 0000911177 cwst:PerformanceStockUnitMember us-gaap:CommonClassAMember 2024-01-01 2024-09-30 0000911177 cwst:RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember 2024-07-01 2024-09-30 0000911177 cwst:RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember 2023-07-01 2023-09-30 0000911177 cwst:RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember 2023-01-01 2023-09-30 0000911177 us-gaap:RestrictedStockUnitsRSUMember 2024-09-30 0000911177 us-gaap:RestrictedStockUnitsRSUMember srt:WeightedAverageMember 2024-01-01 2024-09-30 0000911177 cwst:PerformanceStockUnitMember 2024-09-30 0000911177 cwst:PerformanceStockUnitMember srt:WeightedAverageMember 2024-01-01 2024-09-30 0000911177 cwst:MarketbasedPerformanceStockUnitsMember 2024-01-01 2024-09-30 0000911177 cwst:AmendedAndRestatedNineteenNinetySevenEmployeeStockPurchasePlanMember 2024-07-01 2024-09-30 0000911177 cwst:AmendedAndRestatedNineteenNinetySevenEmployeeStockPurchasePlanMember 2024-01-01 2024-09-30 0000911177 cwst:AmendedAndRestatedNineteenNinetySevenEmployeeStockPurchasePlanMember 2023-07-01 2023-09-30 0000911177 cwst:AmendedAndRestatedNineteenNinetySevenEmployeeStockPurchasePlanMember 2023-01-01 2023-09-30 0000911177 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2023-12-31 0000911177 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-01-01 2024-09-30 0000911177 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember 2024-09-30 0000911177 us-gaap:InterestRateSwapMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2024-07-01 2024-09-30 0000911177 us-gaap:InterestRateSwapMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2023-07-01 2023-09-30 0000911177 us-gaap:InterestRateSwapMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2024-01-01 2024-09-30 0000911177 us-gaap:InterestRateSwapMember us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2023-01-01 2023-09-30 0000911177 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2024-07-01 2024-09-30 0000911177 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2023-07-01 2023-09-30 0000911177 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2024-01-01 2024-09-30 0000911177 us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2023-01-01 2023-09-30 0000911177 us-gaap:CommonClassAMember 2023-09-30 0000911177 us-gaap:CommonClassBMember 2023-09-30 0000911177 us-gaap:CommonClassAMember 2023-06-16 2023-06-16 0000911177 us-gaap:RelatedPartyMember 2024-01-01 2024-09-30 0000911177 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:LandfillMember 2024-09-30 0000911177 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:LandfillMember 2024-09-30 0000911177 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:LandfillMember 2024-09-30 0000911177 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2024-09-30 0000911177 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2024-09-30 0000911177 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2024-09-30 0000911177 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:LandfillMember 2023-12-31 0000911177 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:LandfillMember 2023-12-31 0000911177 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:LandfillMember 2023-12-31 0000911177 2023-01-01 2023-12-31 0000911177 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2023-12-31 0000911177 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2023-12-31 0000911177 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2023-12-31 0000911177 us-gaap:EstimateOfFairValueFairValueDisclosureMember cwst:FixedRateBondsMember 2024-09-30 0000911177 us-gaap:CarryingReportedAmountFairValueDisclosureMember cwst:FixedRateBondsMember 2024-09-30 0000911177 us-gaap:CarryingReportedAmountFairValueDisclosureMember us-gaap:SecuredDebtMember 2024-09-30 0000911177 us-gaap:CarryingReportedAmountFairValueDisclosureMember us-gaap:LineOfCreditMember 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:EasternRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:EasternRegionMember 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:WesternRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:WesternRegionMember 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:MidAtlanticRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:MidAtlanticRegionMember 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:ResourceSolutionsRegionMember 2024-07-01 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:ResourceSolutionsRegionMember 2024-09-30 0000911177 us-gaap:CorporateNonSegmentMember 2024-07-01 2024-09-30 0000911177 us-gaap:CorporateNonSegmentMember 2024-09-30 0000911177 us-gaap:IntersegmentEliminationMember 2024-07-01 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:EasternRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:EasternRegionMember 2023-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:WesternRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:WesternRegionMember 2023-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:MidAtlanticRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:MidAtlanticRegionMember 2023-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:ResourceSolutionsRegionMember 2023-07-01 2023-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:ResourceSolutionsRegionMember 2023-09-30 0000911177 us-gaap:CorporateNonSegmentMember 2023-07-01 2023-09-30 0000911177 us-gaap:CorporateNonSegmentMember 2023-09-30 0000911177 us-gaap:IntersegmentEliminationMember 2023-07-01 2023-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:EasternRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:WesternRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:MidAtlanticRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:ResourceSolutionsRegionMember 2024-01-01 2024-09-30 0000911177 us-gaap:CorporateNonSegmentMember 2024-01-01 2024-09-30 0000911177 us-gaap:IntersegmentEliminationMember 2024-01-01 2024-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:EasternRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:WesternRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:MidAtlanticRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:OperatingSegmentsMember cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:IntersegmentEliminationMember cwst:ResourceSolutionsRegionMember 2023-01-01 2023-09-30 0000911177 us-gaap:CorporateNonSegmentMember 2023-01-01 2023-09-30 0000911177 us-gaap:IntersegmentEliminationMember 2023-01-01 2023-09-30 0000911177 cwst:SolidWasteOperationsCollectionMember 2024-07-01 2024-09-30 0000911177 cwst:SolidWasteOperationsCollectionMember 2023-07-01 2023-09-30 0000911177 cwst:SolidWasteOperationsCollectionMember 2024-01-01 2024-09-30 0000911177 cwst:SolidWasteOperationsCollectionMember 2023-01-01 2023-09-30 0000911177 cwst:SolidWasteOperationsDisposalMember 2024-07-01 2024-09-30 0000911177 cwst:SolidWasteOperationsDisposalMember 2023-07-01 2023-09-30 0000911177 cwst:SolidWasteOperationsDisposalMember 2024-01-01 2024-09-30 0000911177 cwst:SolidWasteOperationsDisposalMember 2023-01-01 2023-09-30 0000911177 cwst:SolidWasteOperationsLandfillGasToEnergyMember 2024-07-01 2024-09-30 0000911177 cwst:SolidWasteOperationsLandfillGasToEnergyMember 2023-07-01 2023-09-30 0000911177 cwst:SolidWasteOperationsLandfillGasToEnergyMember 2024-01-01 2024-09-30 0000911177 cwst:SolidWasteOperationsLandfillGasToEnergyMember 2023-01-01 2023-09-30 0000911177 cwst:SolidWasteOperationsProcessingMember 2024-07-01 2024-09-30 0000911177 cwst:SolidWasteOperationsProcessingMember 2023-07-01 2023-09-30 0000911177 cwst:SolidWasteOperationsProcessingMember 2024-01-01 2024-09-30 0000911177 cwst:SolidWasteOperationsProcessingMember 2023-01-01 2023-09-30 0000911177 cwst:SolidWasteOperationsMember 2024-07-01 2024-09-30 0000911177 cwst:SolidWasteOperationsMember 2023-07-01 2023-09-30 0000911177 cwst:SolidWasteOperationsMember 2024-01-01 2024-09-30 0000911177 cwst:SolidWasteOperationsMember 2023-01-01 2023-09-30 0000911177 cwst:ResourceSolutionsOperationsProcessingMember 2024-07-01 2024-09-30 0000911177 cwst:ResourceSolutionsOperationsProcessingMember 2023-07-01 2023-09-30 0000911177 cwst:ResourceSolutionsOperationsProcessingMember 2024-01-01 2024-09-30 0000911177 cwst:ResourceSolutionsOperationsProcessingMember 2023-01-01 2023-09-30 0000911177 cwst:ResourceSolutionsOperationsMember 2024-07-01 2024-09-30 0000911177 cwst:ResourceSolutionsOperationsMember 2023-07-01 2023-09-30 0000911177 cwst:ResourceSolutionsOperationsMember 2024-01-01 2024-09-30 0000911177 cwst:ResourceSolutionsOperationsMember 2023-01-01 2023-09-30

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2024
OR

☐ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to
Commission file number 000-23211

CASELLA WASTE SYSTEMS, INC.
(Exact name of registrant as specified in its charter)

Delaware | 03-0338873
(State or other jurisdiction of incorporation or organization) | (I.R.S. Employer Identification No.)

25 Greens Hill Lane, |
Rutland, | Vermont | 05701
(Address of principal executive offices) | (Zip Code)

Registrant’s telephone number, including area code: (802) 775-0325

Securities registered pursuant to Section 12(b) of the Act:

Title of each class |  | Trading Symbol(s) |  | Name of each exchange on which registered
Class A common stock, $0.01 par value per share |  | CWST |  | The Nasdaq Stock Market LLC
|  |  |  | (Nasdaq Global Select Market)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company," and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer | ☒ | Accelerated filer | ☐

Non-accelerated filer | ☐ | Smaller reporting company | ☐

|  | Emerging growth company | ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒
The number of shares outstanding of each of the registrant’s classes of common stock, as of October 15, 2024:

Class A common stock, $0.01 par value per share: | 62,325,452 |  |
Class B common stock, $0.01 par value per share: | 988,200 |  |

PART I.
ITEM 1. FINANCIAL STATEMENTS
CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(in thousands)

| September 30, 2024 |  | December 31, 2023
| (Unaudited) |  |
ASSETS
CURRENT ASSETS: |  |  |
Cash and cash equivalents | $ | 518,977 |  |  | $ | 220,912 |
Accounts receivable, net of allowance for credit losses of $7,649 and $4,066, respectively | 168,088 |  |  | 157,324 |
Refundable income taxes | 5,010 |  |  | 3,089 |
Prepaid expenses | 22,657 |  |  | 17,223 |
Inventory | 20,240 |  |  | 17,859 |
Other current assets | 8,079 |  |  | 9,918 |
Total current assets | 743,051 |  |  | 426,325 |
Property and equipment, net of accumulated depreciation and amortization of $1,261,899 and $1,167,541, respectively | 1,059,716 |  |  | 980,553 |
Operating lease right-of-use assets | 102,445 |  |  | 100,844 |
Goodwill | 907,876 |  |  | 735,670 |
Intangible assets, net | 273,312 |  |  | 241,429 |
Restricted assets | 2,422 |  |  | 2,203 |
Cost method investments | 10,967 |  |  | 10,967 |
Deferred income taxes | — |  |  | 11,224 |
Other non-current assets | 23,440 |  |  | 26,255 |
Total assets | $ | 3,123,229 |  |  | $ | 2,535,470 |

The accompanying notes are an integral part of these consolidated financial statements.
1

CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Continued)
(in thousands, except for share and per share data)

| September 30, 2024 |  | December 31, 2023
| (Unaudited) |  |
LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES: |  |  |
Current maturities of debt | $ | 38,368 |  |  | $ | 35,781 |
Current operating lease liabilities | 10,492 |  |  | 9,039 |
Accounts payable | 101,632 |  |  | 116,794 |
Accrued payroll and related expenses | 25,045 |  |  | 22,657 |
Accrued interest | 2,928 |  |  | 3,886 |
Contract liabilities | 47,798 |  |  | 31,472 |
Current accrued final capping, closure and post-closure costs | 15,991 |  |  | 10,773 |
Other accrued liabilities | 49,000 |  |  | 48,456 |
Total current liabilities | 291,254 |  |  | 278,858 |
Debt, less current portion | 1,045,509 |  |  | 1,007,662 |
Operating lease liabilities, less current portion | 68,601 |  |  | 66,074 |
Accrued final capping, closure and post-closure costs, less current portion | 133,644 |  |  | 123,131 |
Deferred income taxes | 15,385 |  |  | 627 |
Other long-term liabilities | 37,306 |  |  | 37,327 |
COMMITMENTS AND CONTINGENCIES |  |  |
STOCKHOLDERS' EQUITY: |  |  |
Class A common stock, $0.01 par value per share; 100,000,000 shares authorized; 62,325,000 and 57,007,000 shares issued and outstanding, respectively | 623 |  |  | 570 |
Class B common stock, $0.01 par value per share; 1,000,000 shares authorized; 988,000 shares issued and outstanding, respectively; 10 votes per share | 10 |  |  | 10 |
Additional paid-in capital | 1,673,442 |  |  | 1,168,812 |
Accumulated deficit | (137,861) |  |  | (146,521) |
Accumulated other comprehensive loss, net of tax | (4,684) |  |  | (1,080) |
Total stockholders' equity | 1,531,530 |  |  | 1,021,791 |
Total liabilities and stockholders' equity | $ | 3,123,229 |  |  | $ | 2,535,470 |

The accompanying notes are an integral part of these consolidated financial statements.
2

CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES
UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except for per share data)

| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Revenues | $ | 411,627 |  |  | $ | 352,735 |  |  | $ | 1,129,797 |  |  | $ | 904,975 |
Operating expenses: |  |  |  |  |  |  |
Cost of operations | 267,117 |  |  | 226,303 |  |  | 741,695 |  |  | 592,865 |
General and administration | 47,030 |  |  | 41,177 |  |  | 138,547 |  |  | 112,721 |
Depreciation and amortization | 59,174 |  |  | 47,736 |  |  | 168,549 |  |  | 116,095 |
Southbridge Landfill closure charge | 8,477 |  |  | 70 |  |  | 8,477 |  |  | 276 |
Expense from acquisition activities | 5,450 |  |  | 3,261 |  |  | 18,297 |  |  | 9,801 |
Legal settlement | — |  |  | — |  |  | — |  |  | 6,150 |
| 387,248 |  |  | 318,547 |  |  | 1,075,565 |  |  | 837,908 |
Operating income | 24,379 |  |  | 34,188 |  |  | 54,232 |  |  | 67,067 |
Other expense (income): |  |  |  |  |  |  |
Interest income | (1,380) |  |  | (5,525) |  |  | (6,817) |  |  | (7,820) |
Interest expense | 15,748 |  |  | 15,748 |  |  | 46,951 |  |  | 31,708 |
Loss from termination of bridge financing | — |  |  | — |  |  | — |  |  | 8,191 |
Other income | (412) |  |  | (225) |  |  | (1,239) |  |  | (1,019) |
Other expense, net | 13,956 |  |  | 9,998 |  |  | 38,895 |  |  | 31,060 |
Income before income taxes | 10,423 |  |  | 24,190 |  |  | 15,337 |  |  | 36,007 |
Provision for income taxes | 4,652 |  |  | 6,018 |  |  | 6,677 |  |  | 8,797 |
Net income | $ | 5,771 |  |  | $ | 18,172 |  |  | $ | 8,660 |  |  | $ | 27,210 |
Basic earnings per share attributable to common stockholders: |  |  |  |  |  |  |
Weighted average common shares outstanding | 58,808 |  |  | 57,962 |  |  | 58,318 |  |  | 54,228 |
Basic earnings per common share | $ | 0.10 |  |  | $ | 0.31 |  |  | $ | 0.15 |  |  | $ | 0.50 |
Diluted earnings per share attributable to common stockholders: |  |  |  |  |  |  |
Weighted average common shares outstanding | 58,921 |  |  | 58,062 |  |  | 58,415 |  |  | 54,325 |
Diluted earnings per common share | $ | 0.10 |  |  | $ | 0.31 |  |  | $ | 0.15 |  |  | $ | 0.50 |

The accompanying notes are an integral part of these consolidated financial statements.
3

CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES
UNAUDITED CONSOLIDATED STATEMENTS OF
COMPREHENSIVE (LOSS) INCOME
(in thousands)

| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Net income | $ | 5,771 |  |  | $ | 18,172 |  |  | $ | 8,660 |  |  | $ | 27,210 |
Other comprehensive (loss) income, before tax: |  |  |  |  |  |  |
Hedging activity: |  |  |  |  |  |  |
Interest rate swap settlements | 2,339 |  |  | 1,763 |  |  | 6,957 |  |  | 4,108 |
Interest rate swap expense reclassified into interest expense | (2,289) |  |  | (1,805) |  |  | (6,900) |  |  | (4,181) |
Unrealized (loss) gain resulting from changes in fair value of derivative instruments | (14,723) |  |  | 2,621 |  |  | (5,216) |  |  | 2,738 |
Other comprehensive (loss) income, before tax | (14,673) |  |  | 2,579 |  |  | (5,159) |  |  | 2,665 |
Income tax (benefit) provision related to items of other comprehensive (loss) income | (4,168) |  |  | 707 |  |  | (1,555) |  |  | 727 |
Other comprehensive (loss) income, net of tax | (10,505) |  |  | 1,872 |  |  | (3,604) |  |  | 1,938 |
Comprehensive (loss) income | $ | (4,734) |  |  | $ | 20,044 |  |  | $ | 5,056 |  |  | $ | 29,148 |

The accompanying notes are an integral part of these consolidated financial statements.
4

CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES
UNAUDITED CONSOLIDATED STATEMENTS OF
STOCKHOLDERS' EQUITY
(in thousands)

|  |  | Casella Waste Systems, Inc. Stockholders' Equity |  |
|  |  | Class A Common Stock |  | Class B Common Stock |  | Additional Paid-In Capital |  | Accumulated Deficit |  | Accumulated Other Comprehensive Income (Loss), Net of Tax |  |
| Total |  | Shares |  | Amount |  | Shares |  | Amount |  |  |  |  |
Balance, December 31, 2023 | $ | 1,021,791 |  |  | 57,007 |  |  | $ | 570 |  |  | 988 |  |  | $ | 10 |  |  | $ | 1,168,812 |  |  | $ | (146,521) |  |  | $ | (1,080) |  |  |
Issuances of Class A common stock | — |  |  | 113 |  |  | 1 |  |  | — |  |  | — |  |  | (1) |  |  | — |  |  | — |  |  |
Stock-based compensation | 2,135 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,135 |  |  | — |  |  | — |  |  |
Comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss | (4,117) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (4,117) |  |  | — |  |  |
Other comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hedging activity | 6,115 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 6,115 |  |  |
Balance, March 31, 2024 | 1,025,924 |  |  | 57,120 |  |  | 571 |  |  | 988 |  |  | 10 |  |  | 1,170,946 |  |  | (150,638) |  |  | 5,035 |  |  |
Issuances of Class A common stock | 1,124 |  |  | 25 |  |  | — |  |  | — |  |  | — |  |  | 1,124 |  |  | — |  |  | — |  |  |
Stock-based compensation | 2,674 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,674 |  |  | — |  |  | — |  |  |
Comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 7,006 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 7,006 |  |  | — |  |  |
Other comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hedging activity | 786 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 786 |  |  |
Balance, June 30, 2024 | 1,037,514 |  |  | 57,145 |  |  | 571 |  |  | 988 |  |  | 10 |  |  | 1,174,744 |  |  | (143,632) |  |  | 5,821 |  |  |
Issuance of Class A common stock - equity offering, net of stock issuance costs | 496,126 |  |  | 5,175 |  |  | 52 |  |  | — |  |  | — |  |  | 496,074 |  |  | — |  |  | — |  |  |
Issuances of Class A common stock | — |  |  | 5 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  |
Stock-based compensation | 2,624 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,624 |  |  | — |  |  | — |  |  |
Comprehensive loss: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 5,771 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 5,771 |  |  | — |  |  |
Other comprehensive loss: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hedging activity | (10,505) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (10,505) |  |  |
Balance, September 30, 2024 | $ | 1,531,530 |  |  | 62,325 |  |  | $ | 623 |  |  | 988 |  |  | $ | 10 |  |  | $ | 1,673,442 |  |  | $ | (137,861) |  |  | $ | (4,684) |  |  |

5

|  |  | Casella Waste Systems, Inc. Stockholders' Equity |  |  |  |  |  |  |  |  |  |  |  |
|  |  | Class A Common Stock |  | Class B Common Stock |  | Additional Paid-In Capital |  | Accumulated Deficit |  | Accumulated Other Comprehensive Income, Net of Tax |  |  |  |  |  |  |  |  |  |  |  |
| Total |  | Shares |  | Amount |  | Shares |  | Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2022 | $ | 497,900 |  |  | 50,704 |  |  | $ | 507 |  |  | 988 |  |  | $ | 10 |  |  | $ | 661,761 |  |  | $ | (171,920) |  |  | $ | 7,542 |  |  |  |  |  |  |  |  |  |  |  |  |
Issuances of Class A common stock | — |  |  | 194 |  |  | 2 |  |  | — |  |  | — |  |  | (2) |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | 1,976 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1,976 |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 3,548 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 3,548 |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive loss: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hedging activity | (1,769) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (1,769) |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, March 31, 2023 | 501,655 |  |  | 50,898 |  |  | 509 |  |  | 988 |  |  | 10 |  |  | 663,735 |  |  | (168,372) |  |  | 5,773 |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of Class A common stock - equity offering, net of stock issuance costs | 496,238 |  |  | 6,053 |  |  | 61 |  |  | — |  |  | — |  |  | 496,177 |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Issuances of Class A common stock | 799 |  |  | 23 |  |  | — |  |  | — |  |  | — |  |  | 799 |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | 2,366 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,366 |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 5,490 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 5,490 |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hedging activity | 1,835 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1,835 |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, June 30, 2023 | 1,008,383 |  |  | 56,974 |  |  | 570 |  |  | 988 |  |  | 10 |  |  | 1,163,077 |  |  | (162,882) |  |  | 7,608 |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of Class A common stock - stock issuance costs | (7) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (7) |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Issuances of Class A common stock | 89 |  |  | 20 |  |  | — |  |  | — |  |  | — |  |  | 89 |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | 2,358 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,358 |  |  | — |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 18,172 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 18,172 |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hedging activity | 1,872 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1,872 |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, September 30, 2023 | $ | 1,030,867 |  |  | 56,994 |  |  | $ | 570 |  |  | 988 |  |  | $ | 10 |  |  | $ | 1,165,517 |  |  | $ | (144,710) |  |  | $ | 9,480 |  |  |  |  |  |  |  |  |  |  |  |  |

The accompanying notes are an integral part of these consolidated financial statements.
6

CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES
UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

| Nine Months Ended September 30, |  |  |  |
| 2024 |  | 2023 |  |  |  |
Cash Flows from Operating Activities: |  |  |  |  |  |  |
Net income | $ | 8,660 |  |  | $ | 27,210 |  |  |  |  |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |
Depreciation and amortization | 168,549 |  |  | 116,095 |  |  |  |  |
Interest accretion on landfill and environmental remediation liabilities | 8,758 |  |  | 7,470 |  |  |  |  |
Amortization of debt issuance costs | 2,224 |  |  | 2,221 |  |  |  |  |
Stock-based compensation | 7,433 |  |  | 6,699 |  |  |  |  |
Operating lease right-of-use assets expense | 13,119 |  |  | 10,956 |  |  |  |  |
Disposition of assets, other items and charges, net | 12,459 |  |  | 279 |  |  |  |  |
Loss from termination of bridge financing | — |  |  | 8,191 |  |  |  |  |
Deferred income taxes | 3,424 |  |  | 5,233 |  |  |  |  |
Changes in assets and liabilities, net of effects of acquisitions and divestitures: |  |  |  |  |  |  |
Accounts receivable | (8,865) |  |  | (23,298) |  |  |  |  |
Landfill operating lease contract expenditures | (3,486) |  |  | (3,336) |  |  |  |  |
Accounts payable | (20,532) |  |  | 24,568 |  |  |  |  |
Prepaid expenses, inventories and other assets | (6,086) |  |  | (10,112) |  |  |  |  |
Accrued expenses, contract liabilities and other liabilities | (14,063) |  |  | (14,351) |  |  |  |  |
Net cash provided by operating activities | 171,594 |  |  | 157,825 |  |  |  |  |
Cash Flows from Investing Activities: |  |  |  |  |  |  |
Acquisitions, net of cash acquired | (259,196) |  |  | (847,763) |  |  |  |  |
Additions to intangible assets | (265) |  |  | — |  |  |  |  |
Additions to property and equipment | (126,361) |  |  | (90,364) |  |  |  |  |
Proceeds from sale of property and equipment | 1,047 |  |  | 971 |  |  |  |  |
Proceeds from property insurance settlement | 146 |  |  | — |  |  |  |  |
Net cash used in investing activities | (384,629) |  |  | (937,156) |  |  |  |  |
Cash Flows from Financing Activities: |  |  |  |  |  |  |
Proceeds from debt borrowings | 801,750 |  |  | 465,000 |  |  |  |  |
Principal payments on debt | (780,771) |  |  | (18,563) |  |  |  |  |
Payments of debt issuance costs | (6,448) |  |  | (12,759) |  |  |  |  |
Proceeds from the exercise of share based awards | — |  |  | 89 |  |  |  |  |
Proceeds from the public offering of Class A common stock | 496,569 |  |  | 496,231 |  |  |  |  |
Net cash provided by financing activities | 511,100 |  |  | 929,998 |  |  |  |  |
Net increase in cash, cash equivalents and restricted cash | 298,065 |  |  | 150,667 |  |  |  |  |
Cash, cash equivalents and restricted cash, beginning of period | 220,912 |  |  | 71,152 |  |  |  |  |
Cash, cash equivalents and restricted cash, end of period | $ | 518,977 |  |  | $ | 221,819 |  |  |  |  |
Supplemental Disclosure of Cash Flow Information: |  |  |  |  |  |  |
Cash paid during the period for: |  |  |  |  |  |  |
Cash interest payments | $ | 45,685 |  |  | $ | 28,626 |  |  |  |  |
Cash income tax payments | $ | 5,135 |  |  | $ | 9,689 |  |  |  |  |
Supplemental Disclosure of Non-Cash Activities: |  |  |  |  |  |  |
Non-current assets obtained through long-term financing obligations | $ | 23,679 |  |  | $ | 8,053 |  |  |  |  |
Right-of-use assets obtained in exchange for operating lease obligations | $ | 10,776 |  |  | $ | 18,558 |  |  |  |  |

The accompanying notes are an integral part of these consolidated financial statements.
7

CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS
1. BASIS OF PRESENTATION
Casella Waste Systems, Inc. (“Parent”) and its subsidiaries (collectively, “we”, “us” or “our”), is a regional, vertically integrated solid waste services company. We provide resource management expertise and services to residential, commercial, municipal, institutional and industrial customers, primarily in the areas of solid waste collection and disposal, transfer, recycling and organics services.
We provide integrated solid waste services in ten states: Vermont, New Hampshire, New York, Massachusetts, Connecticut, Maine, Pennsylvania, New Jersey, Delaware and Maryland, with our headquarters located in Rutland, Vermont. We manage our solid waste operations on a geographic basis through regional operating segments, the Eastern, Western and Mid-Atlantic regions, each of which provides a comprehensive range of non-hazardous solid waste services. We manage our resource renewal operations through the Resource Solutions operating segment, which leverages our core competencies in materials processing, industrial recycling, organics and resource management service offerings to deliver a comprehensive solution for our larger commercial, municipal, institutional and industrial customers that have more diverse waste and recycling needs. Legal, tax, information technology, human resources, certain finance and accounting and other administrative functions are included in our Corporate Entities segment.
The accompanying unaudited consolidated financial statements, which include the accounts of the Parent and our wholly-owned subsidiaries, have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). All significant intercompany accounts and transactions are eliminated in consolidation. Investments in entities in which we do not have a controlling financial interest are accounted for under either the equity method or the cost method of accounting, as appropriate. Our significant accounting policies are more fully discussed in Item 8. “Financial Statements and Supplementary Data” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 (“fiscal year 2023”), which was filed with the SEC on February 16, 2024 (“2023 Form 10-K”).
Preparation of our consolidated financial statements in accordance with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the accounting for and recognition and disclosure of assets, liabilities, equity, revenues and expenses. We must make these estimates and assumptions because certain information that we use is dependent on future events, cannot be calculated with a high degree of precision given the available data, or simply cannot be readily calculated. In the opinion of management, these consolidated financial statements include all adjustments, including normal recurring and nonrecurring adjustments, as applicable, necessary for a fair statement of the financial position, results of operations and cash flows for the periods presented. The results for the three and nine months ended September 30, 2024 may not be indicative of the results for any other interim period or the entire fiscal year. The consolidated financial statements presented herein should be read in conjunction with our audited consolidated financial statements included in our 2023 Form 10-K.
Subsequent Events
We have evaluated subsequent events or transactions that have occurred after the consolidated balance sheet date of September 30, 2024 through the date of filing of the consolidated financial statements with the SEC on this Quarterly Report on Form 10-Q. Except as disclosed, no material subsequent events have occurred since September 30, 2024 through the date of this filing that would require recognition or adjustments to our disclosures in our consolidated financial statements.
8

2. ACCOUNTING CHANGES
The following table provides a brief description of Accounting Standards Updates (“ASU”) to the Accounting Standards Codification (“ASC”) issued by the Financial Accounting Standards Board (“FASB”) and deemed to have a possible material impact on our consolidated financial statements based on current account balances and activity:

Standard |  | Description |  | Effect on the Financial Statements or Other Significant Matters
Accounting standards issued pending adoption
ASU No. 2023-07: Improvements to Reportable Segment Disclosures (Topic 280) |  | Requires entities to provide additional disclosure related to the chief operating decision maker (“CODM”) and reportable operating segments, including providing more detailed information about reportable operating segment's significant expenses and how that information is used by the CODM. |  | We do not expect the adoption of this guidance to have a material impact on our consolidated financial statements, however, the adoption of this guidance will have an impact on reportable operating segment disclosures within the accompanying notes to our consolidated financial statements. This guidance does not change how we identify our operating segments, aggregate them or apply quantitative thresholds to determine our reportable segments. This guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted.
ASU No. 2023-09: Improvements to Income Tax Disclosures (Topic 740) |  | Requires entities to provide additional disclosure related to the transparency and decision usefulness of income tax disclosures, including additional disclosure around the rate reconciliation and income taxes paid. |  | We do not expect the adoption of this guidance to have a material impact on our consolidated financial statements, however, the adoption of this guidance will have an impact on income tax disclosures within the accompanying notes to our consolidated financial statements. This guidance is effective for fiscal years beginning after December 15, 2024, with early adoption permitted.

3. REVENUE RECOGNITION
Revenues associated with our solid waste operations are derived mainly from solid waste collection and disposal services, including landfill, transfer station and transportation services, landfill gas-to-energy services and processing services. Revenues associated with our resource renewal operations are derived from processing services and non-processing services, which we refer to as our National Accounts business.
The following tables set forth revenues disaggregated by service line and timing of revenue recognition by operating segment for each of the three and nine months ended September 30, 2024 and 2023:
9

Three Months Ended September 30, 2024

| Eastern |  | Western |  | Mid-Atlantic |  | Resource Solutions |  | Total Revenues
Collection | $ | 79,291 |  |  | $ | 109,740 |  |  | $ | 63,548 |  |  | $ | — |  |  | $ | 252,579 |
Landfill | 7,745 |  |  | 18,019 |  |  | — |  |  | — |  |  | 25,764 |
Transfer station | 18,862 |  |  | 16,890 |  |  | 457 |  |  | — |  |  | 36,209 |
Transportation | 1,363 |  |  | 4,117 |  |  | — |  |  | — |  |  | 5,480 |
Landfill gas-to-energy | 301 |  |  | 1,350 |  |  | — |  |  | — |  |  | 1,651 |
Processing | 2,842 |  |  | 640 |  |  | — |  |  | 34,954 |  |  | 38,436 |
National Accounts | — |  |  | — |  |  | — |  |  | 51,508 |  |  | 51,508 |
Total revenues | $ | 110,404 |  |  | $ | 150,756 |  |  | $ | 64,005 |  |  | $ | 86,462 |  |  | $ | 411,627 |
Transferred at a point-in-time | $ | 122 |  |  | $ | 645 |  |  | $ | — |  |  | $ | 16,588 |  |  | $ | 17,355 |
Transferred over time | 110,282 |  |  | 150,111 |  |  | 64,005 |  |  | 69,874 |  |  | 394,272 |
Total revenues | $ | 110,404 |  |  | $ | 150,756 |  |  | $ | 64,005 |  |  | $ | 86,462 |  |  | $ | 411,627 |

Three Months Ended September 30, 2023

| Eastern |  | Western |  | Mid-Atlantic (1) |  | Resource Solutions |  | Total Revenues
Collection | $ | 68,944 |  |  | $ | 93,924 |  |  | $ | 43,225 |  |  | $ | — |  |  | $ | 206,093 |
Landfill | 7,588 |  |  | 18,563 |  |  | — |  |  | — |  |  | 26,151 |
Transfer station | 16,963 |  |  | 17,491 |  |  | 497 |  |  | — |  |  | 34,951 |
Transportation | 1,328 |  |  | 3,907 |  |  | — |  |  | — |  |  | 5,235 |
Landfill gas-to-energy | 208 |  |  | 1,589 |  |  | — |  |  | — |  |  | 1,797 |
Processing | 2,476 |  |  | 545 |  |  | — |  |  | 27,782 |  |  | 30,803 |
National Accounts | — |  |  | — |  |  | — |  |  | 47,705 |  |  | 47,705 |
Total revenues | $ | 97,507 |  |  | $ | 136,019 |  |  | $ | 43,722 |  |  | $ | 75,487 |  |  | $ | 352,735 |
Transferred at a point-in-time | $ | 121 |  |  | $ | 651 |  |  | $ | — |  |  | $ | 8,549 |  |  | $ | 9,321 |
Transferred over time | 97,386 |  |  | 135,368 |  |  | 43,722 |  |  | 66,938 |  |  | 343,414 |
Total revenues | $ | 97,507 |  |  | $ | 136,019 |  |  | $ | 43,722 |  |  | $ | 75,487 |  |  | $ | 352,735 |

Nine Months Ended September 30, 2024

| Eastern |  | Western |  | Mid-Atlantic |  | Resource Solutions |  | Total Revenues
Collection | $ | 225,622 |  |  | $ | 315,546 |  |  | $ | 146,728 |  |  | $ | — |  |  | $ | 687,896 |
Landfill | 21,940 |  |  | 48,156 |  |  | — |  |  | — |  |  | 70,096 |
Transfer station | 51,626 |  |  | 45,111 |  |  | 1,292 |  |  | — |  |  | 98,029 |
Transportation | 4,071 |  |  | 10,520 |  |  | — |  |  | — |  |  | 14,591 |
Landfill gas-to-energy | 1,298 |  |  | 4,846 |  |  | — |  |  | — |  |  | 6,144 |
Processing | 6,342 |  |  | 1,948 |  |  | — |  |  | 97,992 |  |  | 106,282 |
National Accounts | — |  |  | — |  |  | — |  |  | 146,759 |  |  | 146,759 |
Total revenues | $ | 310,899 |  |  | $ | 426,127 |  |  | $ | 148,020 |  |  | $ | 244,751 |  |  | $ | 1,129,797 |
Transferred at a point-in-time | $ | 361 |  |  | $ | 1,940 |  |  | $ | — |  |  | $ | 44,304 |  |  | $ | 46,605 |
Transferred over time | 310,538 |  |  | 424,187 |  |  | 148,020 |  |  | 200,447 |  |  | 1,083,192 |
Total revenues | $ | 310,899 |  |  | $ | 426,127 |  |  | $ | 148,020 |  |  | $ | 244,751 |  |  | $ | 1,129,797 |

10

Nine Months Ended September 30, 2023

| Eastern |  | Western |  | Mid-Atlantic (1) |  | Resource Solutions |  | Total Revenues
Collection | $ | 194,801 |  |  | $ | 257,891 |  |  | $ | 43,225 |  |  | $ | — |  |  | $ | 495,917 |
Landfill | 21,109 |  |  | 53,943 |  |  | — |  |  | — |  |  | 75,052 |
Transfer station | 48,643 |  |  | 42,181 |  |  | 497 |  |  | — |  |  | 91,321 |
Transportation | 3,718 |  |  | 11,342 |  |  | — |  |  | — |  |  | 15,060 |
Landfill gas-to-energy | 594 |  |  | 4,448 |  |  | — |  |  | — |  |  | 5,042 |
Processing | 5,875 |  |  | 1,476 |  |  | — |  |  | 75,970 |  |  | 83,321 |
National Accounts | — |  |  | — |  |  | — |  |  | 139,262 |  |  | 139,262 |
Total revenues | $ | 274,740 |  |  | $ | 371,281 |  |  | $ | 43,722 |  |  | $ | 215,232 |  |  | $ | 904,975 |
Transferred at a point-in-time | $ | 339 |  |  | $ | 2,072 |  |  | $ | — |  |  | $ | 23,121 |  |  | $ | 25,532 |
Transferred over time | 274,401 |  |  | 369,209 |  |  | 43,722 |  |  | 192,111 |  |  | 879,443 |
Total revenues | $ | 274,740 |  |  | $ | 371,281 |  |  | $ | 43,722 |  |  | $ | 215,232 |  |  | $ | 904,975 |

(1)Operations under the Mid-Atlantic region commenced July 1, 2023.
Payments to customers that are not in exchange for a distinct good or service are recorded as a reduction of revenues. Rebates to certain customers associated with payments for recycled or organic materials that are received and subsequently processed and sold to other third-parties amounted to $9,084 and $24,615 in the three and nine months ended September 30, 2024, respectively, and $4,617 and $17,575 in the three and nine months ended September 30, 2023, respectively. Rebates are generally recorded as a reduction of revenues upon the sale of such materials, or upon receipt of the recycled materials at our facilities. We did not record revenues in the three and nine months ended September 30, 2024 or September 30, 2023 from performance obligations satisfied in previous periods.
Contract receivables, which are included in accounts receivable, net in our consolidated balance sheets are recorded when billed or when related revenue is earned, if earlier, and represent claims against third-parties that will be settled in cash. Accounts receivable, net includes receivables from contracts of $174,216 and $158,931 as of September 30, 2024 and December 31, 2023, respectively. Certain customers are billed in advance and, accordingly, recognition of the related revenues for which payment has been received is deferred as a contract liability until the services are provided and control transferred to the customer. We recognized contract liabilities of $47,798 and $31,472 as of September 30, 2024 and December 31, 2023, respectively. Due to the short term nature of advanced billings, substantially all of the deferred revenue recognized as a contract liability as of December 31, 2023 and December 31, 2022 was recognized as revenue during the nine months ended September 30, 2024 and September 30, 2023, respectively, when the services were performed.
4. BUSINESS COMBINATIONS
Subsequent to September 30, 2024, we completed the purchase of all equity interests of Royal Carting and Welsh Sanitation and related real estate assets. This acquisition includes collection and transfer operations in the middle and lower Hudson Valley regions of New York as well as western Connecticut.
In the nine months ended September 30, 2024, we acquired five businesses: three of which are in our Mid-Atlantic region, including the purchase of all the equity interests of Whitetail Disposal, Inc. and the assets of LMR Disposal, LLC, which together include collection operations in eastern Pennsylvania and western New Jersey; and two of which are tuck-in operations in our Eastern region. In the nine months ended September 30, 2023, we acquired five businesses: the equity interests of four wholly owned subsidiaries of GFL Environmental Inc., which included solid waste collection, transfer and recycling operations in Pennsylvania, Maryland and Delaware (“GFL Acquisition”); the assets of Consolidated Waste Services, LLC and its affiliates (dba Twin Bridges), a collection, transfer and recycling business in the greater Albany, New York area (“Twin Bridges Acquisition”); as well as three solid-waste collection businesses that provide collection, transfer and recycling services.
The operating results of the businesses acquired prior to September 30, 2024 have been included in the accompanying unaudited consolidated statements of operations from each date of acquisition, and each purchase price has been allocated to the net assets acquired based on fair values at the date of each acquisition with the residual amounts recorded as goodwill. Purchase price allocations are based on information existing at the acquisition dates or upon closing the transactions. Acquired intangible assets other than goodwill that are subject to amortization may include customer relationships, trade names and covenants not-to-compete. Such assets are amortized over a two-year to ten-year period from the date of acquisition.
11

Goodwill acquired is primarily associated with the value of projected discounted cash flows, based on the current and anticipated operating performance of the business, in excess of the specific values allocated to other assets, new growth opportunities arising from the acquisitions, and expected synergies from combining the acquired businesses with our existing operations and implementing our operating strategies. Substantially all amounts recorded to goodwill are expected to be deductible for tax purposes.
A summary of the purchase price and the purchase price allocation for acquisitions follows:

| Nine Months Ended September 30,
| 2024 |  | 2023
Purchase Price: |  |  |
Cash used in acquisitions, net of cash acquired | $ | 261,235 |  |  | $ | 842,635 |
Working capital settlements | (2,633) |  |  | — |
Holdbacks and additional consideration owed | 1,575 |  |  | 2,435 |
Total consideration | $ | 260,177 |  |  | $ | 845,070 |
Allocated as follows: |  |  |
Current assets | $ | 7,309 |  |  | $ | 19,297 |
Property, plant and equipment: |  |  |
Land | 1,310 |  |  | 6,760 |
Buildings and improvements | 1,004 |  |  | 29,636 |
Machinery and equipment | 56,396 |  |  | 175,309 |
Operating lease right-of-use assets | 5,222 |  |  | 11,732 |
Intangible assets: |  |  |
Trade names | 1,970 |  |  | — |
Covenants not-to-compete | 10,754 |  |  | 37,648 |
Customer relationships | 57,713 |  |  | 145,553 |
Deferred tax liability | (23,509) |  |  | (11,013) |
Current liabilities | (23,268) |  |  | (21,724) |
Operating lease liabilities, less current portion | (5,092) |  |  | (9,939) |
Other long-term liabilities | — |  |  | (828) |
Fair value of assets acquired and liabilities assumed | 89,809 |  |  | 382,431 |
Excess purchase price allocated to goodwill | $ | 170,368 |  |  | $ | 462,639 |

Purchase price allocations are preliminary and subject to revision upon finalization of third-party valuations over each respective one-year measurement period. Accordingly, the purchase price allocations for the nine months ended September 30, 2024 are subject to change. Amounts in the nine months ended September 30, 2023 are preliminary as disclosed based on information existing at the acquisition dates or upon closing the transaction and have since been updated based upon the finalization of third-party valuations, including the value of certain tangible and intangible assets acquired.
12

Unaudited pro forma combined operational results prepared as though each acquisition completed since the beginning of the prior fiscal year had occurred as of January 1, 2023 is as follows:

| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Revenues | $ | 419,593 |  |  | $ | 400,081 |  |  | $ | 1,195,575 |  |  | $ | 1,164,131 |
Operating income | $ | 23,891 |  |  | $ | 33,298 |  |  | $ | 51,151 |  |  | $ | 72,018 |
Net income | $ | 5,481 |  |  | $ | 16,765 |  |  | $ | 5,961 |  |  | $ | 26,723 |
Basic earnings per share attributable to common stockholders: |  |  |  |  |  |  |
Weighted average common shares outstanding | 58,808 |  |  | 57,962 |  |  | 58,318 |  |  | 54,228 |
Basic earnings per common share | $ | 0.09 |  |  | $ | 0.29 |  |  | $ | 0.10 |  |  | $ | 0.49 |
Diluted earnings per share attributable to common stockholders: |  |  |  |  |  |  |
Weighted average common shares outstanding | 58,921 |  |  | 58,062 |  |  | 58,415 |  |  | 54,325 |
Diluted earnings per common share | $ | 0.09 |  |  | $ | 0.29 |  |  | $ | 0.10 |  |  | $ | 0.49 |

The unaudited pro forma results set forth in the table above have been prepared for comparative purposes only and are not necessarily indicative of the actual results of operations had the acquisitions occurred as of January 1, 2023 or of the results of our future operations. Furthermore, the unaudited pro forma results do not give effect to all cost savings or incremental costs that may occur as the result of the integration and consolidation of the completed acquisitions.
5. GOODWILL AND INTANGIBLE ASSETS
A summary of the activity and balances related to goodwill by operating segment is as follows:

| December 31, 2023 |  | Acquisitions |  | Business Combination Adjustments |  |  |  | September 30, 2024
Eastern | $ | 73,893 |  |  | $ | 774 |  |  | $ | — |  |  |  |  | $ | 74,667 |
Western | 285,056 |  |  | — |  |  | 704 |  |  |  |  | 285,760 |
Mid-Atlantic | 332,247 |  |  | 169,594 |  |  | 946 |  |  |  |  | 502,787 |
Resource Solutions | 44,474 |  |  | — |  |  | 188 |  |  |  |  | 44,662 |
| $ | 735,670 |  |  | $ | 170,368 |  |  | $ | 1,838 |  |  |  |  | $ | 907,876 |

Summaries of intangible assets by type follow:

| Covenants Not-to-Compete |  | Customer Relationships |  | Trade Names |  | Total
Balance, September 30, 2024 |  |  |  |  |  |  |
Intangible assets | $ | 71,326 |  |  | $ | 330,550 |  |  | $ | 15,295 |  |  | $ | 417,171 |
Less accumulated amortization | (32,413) |  |  | (101,369) |  |  | (10,077) |  |  | (143,859) |
| $ | 38,913 |  |  | $ | 229,181 |  |  | $ | 5,218 |  |  | $ | 273,312 |

| Covenants Not-to-Compete |  | Customer Relationships |  | Trade Names |  | Total
Balance, December 31, 2023 |  |  |  |  |  |  |
Intangible assets | $ | 61,573 |  |  | $ | 272,571 |  |  | $ | 13,325 |  |  | $ | 347,469 |
Less accumulated amortization | (26,645) |  |  | (72,227) |  |  | (7,168) |  |  | (106,040) |
| $ | 34,928 |  |  | $ | 200,344 |  |  | $ | 6,157 |  |  | $ | 241,429 |

Intangible amortization expense was $14,043 and $38,845 during the three and nine months ended September 30, 2024, respectively, and $10,109 and $18,405 during the three and nine months ended September 30, 2023, respectively.
13

A summary of intangible amortization expense estimated for each of the next five fiscal years following fiscal year 2023 and thereafter is estimated as follows:

Estimated Future Amortization Expense as of September 30, 2024 |
For the remainder of the fiscal year ending December 31, 2024 | $ | 13,703 |
Fiscal year ending December 31, 2025 | $ | 56,077 |
Fiscal year ending December 31, 2026 | $ | 49,907 |
Fiscal year ending December 31, 2027 | $ | 44,054 |
Fiscal year ending December 31, 2028 | $ | 37,777 |
Thereafter | $ | 71,794 |

14

6. ACCRUED FINAL CAPPING, CLOSURE AND POST CLOSURE
Accrued final capping, closure and post-closure costs include the current and non-current portion of costs associated with obligations for final capping, closure and post-closure of our landfills. We estimate our future final capping, closure and post-closure costs in order to determine the final capping, closure and post-closure expense per ton of waste placed into each landfill. The anticipated time frame for paying these costs varies based on the remaining useful life of each landfill as well as the duration of the post-closure monitoring period.
A summary of the changes to accrued final capping, closure and post-closure liabilities follows:

| Nine Months Ended September 30,
| 2024 |  | 2023
Beginning balance | $ | 133,904 |  |  | $ | 113,678 |
Obligations incurred | 5,230 |  |  | 4,023 |
Revision in estimates (1) | 8,477 |  |  | — |
Accretion expense | 8,569 |  |  | 7,193 |
Obligations settled (2) | (6,545) |  |  | (7,338) |
Ending balance | $ | 149,635 |  |  | $ | 117,556 |

(1)Relates to the revision in estimates of the post-closure liability for the Town of Southbridge, Massachusetts landfill (“Southbridge Landfill”). See Note 11, Other Items and Charges for further disclosure.
(2)May include amounts that are being processed through accounts payable as a part of our disbursements cycle.
15

7. DEBT
A summary of debt is as follows:

| September 30, 2024 |  | December 31, 2023
Senior Secured Credit Facility: |  |  |
Term loan A facility (“Term Loan Facility”) payable quarterly beginning in the fiscal year ended December 31, 2027 with balance due September 2029; bearing interest at 6.740% as of September 30, 2024 | $ | 800,000 |  |  | $ | — |
Term loan A facility payable quarterly with balance due December 2026 amended and restated in September 2024 as the Term Loan Facility | — |  |  | 350,000 |
Term loan A facility payable quarterly with balance due December 2026 amended and restated in September 2024 as the Term Loan Facility | — |  |  | 419,250 |
Revolving credit facility (“Revolving Credit Facility”) due September 2029; bearing interest at term secured overnight financing rate (“Term SOFR”) plus 1.885% | — |  |  | — |
Revolving credit facility due December 2026 amended and restated in September 2024 as the Revolving Credit Facility | — |  |  | — |
Tax-Exempt Bonds: |  |  |
New York State Environmental Facilities Corporation Solid Waste Disposal Revenue Bonds Series 2014 (“New York Bonds 2014R-1”) due December 2044 - fixed rate interest period bearing interest at 2.875% through December 2029 | 25,000 |  |  | 25,000 |
New York State Environmental Facilities Corporation Solid Waste Disposal Revenue Bonds Series 2014R-2 (“New York Bonds 2014R-2”) due December 2044 - fixed rate interest period bearing interest at 3.125% through May 2026 | 15,000 |  |  | 15,000 |
New York State Environmental Facilities Corporation Solid Waste Disposal Revenue Bonds Series 2020 (“New York Bonds 2020”) due September 2050 - fixed rate interest period bearing interest at 2.750% through September 2025 | 40,000 |  |  | 40,000 |
New York State Environmental Facilities Corporation Solid Waste Disposal Revenue Bonds Series 2020R-2 (“New York Bonds 2020R-2”) due September 2050 - fixed rate interest period bearing interest at 5.125% through September 2030 | 35,000 |  |  | 35,000 |
Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2005R-3 (“FAME Bonds 2005R-3”) due January 2025 - fixed rate interest period bearing interest at 5.25% through January 2025 | 25,000 |  |  | 25,000 |
Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2015R-1 (“FAME Bonds 2015R-1”) due August 2035 - fixed rate interest period bearing interest at 5.125% through July 2025 | 15,000 |  |  | 15,000 |
Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2015R-2 (“FAME Bonds 2015R-2”) due August 2035 - fixed rate interest period bearing interest at 4.375% through July 2025 | 15,000 |  |  | 15,000 |
Vermont Economic Development Authority Solid Waste Disposal Long-Term Revenue Bonds Series 2013 (“Vermont Bonds 2013”) due April 2036 - fixed rate interest period bearing interest at 4.625% through April 2028 | 16,000 |  |  | 16,000 |
Vermont Economic Development Authority Solid Waste Disposal Long-Term Revenue Bonds Series 2022A-1 (“Vermont Bonds 2022A-1”) due June 2052 - fixed rate interest period bearing interest at 5.00% through May 2027 | 35,000 |  |  | 35,000 |
Business Finance Authority of the State of New Hampshire Solid Waste Disposal Revenue Bonds Series 2013 (“New Hampshire Bonds”) due April 2029 - fixed rate interest period bearing interest at 2.95% through April 2029 | 11,000 |  |  | 11,000 |
Other: |  |  |
Finance leases maturing through December 2107; bearing interest at a weighted average of 4.5% | 66,164 |  |  | 53,066 |
Notes payable maturing through September 2028; bearing interest up to 8.1% | 1,500 |  |  | 230 |
Principal amount of debt | 1,099,664 |  |  | 1,054,546 |
Less—unamortized debt issuance costs | 15,787 |  |  | 11,103 |
Debt less unamortized debt issuance costs | 1,083,877 |  |  | 1,043,443 |
Less—current maturities of debt | 38,368 |  |  | 35,781 |
| $ | 1,045,509 |  |  | $ | 1,007,662 |

16

Credit Facility
In September 2024, we entered into a second amended and restated credit agreement (“Credit Agreement”), which amended and restated in its entirety our amended and restated credit agreement (“Existing Credit Agreement”). The Credit Agreement provides for a $800,000 aggregate principal amount Term Loan Facility and a $700,000 Revolving Credit Facility, with a $155,000 sublimit for letters of credit (collectively, the "Credit Facility"). The proceeds of the Credit Facility refinanced our term loans under the Existing Credit Agreement, and may be used for working capital, permitted acquisitions, investments and dividends and distributions, and for other general corporate purposes.
We have the right to request, at our discretion, an increase in the amount of loans under the Credit Facility by an aggregate amount of $200,000, subject to further increase based on the terms and conditions set forth in the Credit Agreement. The Credit Facility has a 5-year term that matures in September 2029. The Credit Facility shall bear interest, at our election, at Term SOFR or at a base rate, in each case plus or minus any sustainable rate adjustment of up to positive or negative 4.0 basis points per annum, plus an applicable interest rate margin based upon our consolidated net leverage ratio as follows:

|  | Term SOFR Loans |  | Base Rate Loans
Credit Facility |  | 1.300% to 2.175% |  | 0.300% to 1.175%

A commitment fee will be charged on undrawn amounts of our Revolving Credit Facility based upon our consolidated net leverage ratio in the range of 0.20% to 0.40% per annum, plus a sustainability adjustment of up to positive or negative 1.0 basis point per annum. The Credit Agreement provides that Term SOFR is subject to a zero percent floor. We are also required to pay a fronting fee for each letter of credit of 0.25% per annum. Interest under the Credit Agreement is subject to increase by 2.00% per annum during the continuance of a payment default and may be subject to increase by 2.00% per annum during the continuance of any other event of default. The Credit Facility is guaranteed jointly and severally, fully and unconditionally by all of our significant wholly-owned subsidiaries and secured by substantially all of our assets. As of September 30, 2024, further advances were available under the Revolving Credit Facility in the amount of $678,500. The available amount is net of outstanding irrevocable letters of credit totaling $21,500, and as of September 30, 2024 no amount had been drawn.
The Credit Agreement requires us to maintain a minimum interest coverage ratio and a maximum consolidated net leverage ratio, to be measured at the end of each fiscal quarter. In addition to these financial covenants, the Credit Agreement contains a number of important customary affirmative and negative covenants which restrict, among other things, our ability to sell assets, incur additional debt, create liens, make investments, and pay dividends. As of September 30, 2024, we were in compliance with the covenants contained in the Credit Agreement. An event of default under any of our debt agreements could permit some of our lenders, including the lenders under the Credit Facility, to declare all amounts borrowed from them to be immediately due and payable, together with accrued and unpaid interest, or, in the case of the Credit Facility, terminate the commitment to make further credit extensions thereunder, which could, in turn, trigger cross-defaults under other debt obligations. If we were unable to repay debt to our lenders or were otherwise in default under any provision governing our outstanding debt obligations, our secured lenders could proceed against us and against the collateral securing that debt.
Loss from Termination of Bridge Financing
In the nine months ended September 30, 2023, we wrote off the unamortized debt issuance costs and recognized a loss from termination of bridge financing upon the extinguishment of both a secured bridge financing agreement in connection with the GFL Acquisition of $3,718, and an unsecured bridge financing agreement in connection with the Twin Bridges Acquisition of $4,473.
Cash Flow Hedges
Our strategy to reduce exposure to interest rate risk involves entering into interest rate derivative agreements to hedge against adverse movements in interest rates related to the variable rate portion of our long-term debt. We have designated these derivative instruments as highly effective cash flow hedges, and therefore the change in their fair value is recorded in stockholders’ equity as a component of accumulated other comprehensive loss, net of tax and included in interest expense at the same time as interest expense is affected by the hedged transactions. Differences paid or received over the life of the agreements are recorded as additions to or reductions of interest expense on the underlying debt and included in cash flows from operating activities.
17

As of both September 30, 2024 and December 31, 2023, we had $515,000 notional amount of active interest rate derivative agreements outstanding. These agreements mature between February 2026 and June 2028 and provide that we receive interest based on Term SOFR, restricted by a 0.0% floor, and pay interest at a weighted average rate of approximately 3.6%.
A summary of the effect of cash flow hedges related to derivative instruments on the consolidated balance sheets follows:

|  |  | Fair Value
| Balance Sheet Location |  | September 30, 2024 |  | December 31, 2023
Interest rate swaps | Other current assets |  | $ | 3,011 |  |  | $ | 5,951 |
Interest rate swaps | Other non-current assets |  | 2,676 |  |  | 4,413 |
|  |  | $ | 5,687 |  |  | $ | 10,364 |
Interest rate swaps | Other accrued liabilities |  | $ | 1,392 |  |  | $ | — |
Interest rate swaps | Other long-term liabilities |  | 10,851 |  |  | 11,762 |
|  |  | $ | 12,243 |  |  | $ | 11,762 |
Interest rate swaps | Accumulated other comprehensive loss, net of tax |  | $ | (6,556) |  |  | $ | (1,398) |
Interest rate swaps - tax effect | Accumulated other comprehensive loss, net of tax |  | 1,872 |  |  | 318 |
|  |  | $ | (4,684) |  |  | $ | (1,080) |

8. COMMITMENTS AND CONTINGENCIES
Legal Proceedings
In the ordinary course of our business and as the result of the extensive governmental regulation of the solid waste industry, we are subject to various judicial and administrative proceedings involving state and local agencies. In these proceedings, an agency may seek to impose fines or to revoke or deny renewal of an operating permit held by us. From time to time, we may also be subject to actions brought by special interest or other groups, adjacent landowners or residents in connection with the permitting and licensing of landfills and transfer stations, or allegations of environmental damage or violations of the permits and licenses pursuant to which we operate. In addition, we may be named defendants in various claims and suits pending for alleged damages to persons and property, alleged violations of certain laws and alleged liabilities arising out of matters occurring during the ordinary operation of a waste management business. The plaintiffs in some actions seek unspecified damages or injunctive relief, or both. These actions fall within various procedural stages at any point in time, and some are covered in part by insurance.
In accordance with FASB ASC 450 - Contingencies, we accrue for legal proceedings, inclusive of legal costs, when losses become probable and reasonably estimable. We have recorded an aggregate accrual of $250 relating to our outstanding legal proceedings as of September 30, 2024. As of the end of each applicable reporting period, we review each of our legal proceedings to determine whether it is probable, reasonably possible or remote that a liability has been incurred and, if it is at least reasonably possible, whether a range of loss can be reasonably estimated under the provisions of FASB ASC 450-20. In instances where we determine that a loss is probable and we can reasonably estimate a range of loss we may incur with respect to such a matter, we record an accrual for the amount within the range that constitutes our best estimate of the possible loss. If we are able to reasonably estimate a range, but no amount within the range appears to be a better estimate than any other, we record an accrual in the amount that is the low end of such range. When a loss is reasonably possible, but not probable, we will not record an accrual, but we will disclose our estimate of the possible range of loss where such estimate can be made in accordance with FASB ASC 450-20. We disclose outstanding matters that we believe could have a material adverse effect on our financial condition, results of operations or cash flows.
North Country Environmental Services Expansion Permit
The permit for expansion of the Bethlehem, New Hampshire landfill of our subsidiary, North Country Environmental Services, Inc. (“NCES”), known as “Stage VI”, issued in October 2020 (“Permit”), was appealed by the Conservation Law Foundation (“CLF”) to the New Hampshire Waste Management Council (“Council”) on November 9, 2020 on the grounds it failed to meet the public benefit criteria. Following a hearing on the merits during which the Council found that the New Hampshire Department of Environmental Services (“DES”) had reasonably measured and acted lawfully in determining a capacity need for Stage VI, the hearing officer presiding over the proceedings issued an Order on May 11, 2022, without further hearing, determining instead that DES had acted unlawfully in reaching these conclusions (“Hearing Officer’s Order”), and remanded the Permit to DES on this determination. On December 5, 2022, DES and NCES both separately sought review of the Hearing
18

Officer’s Order on appeal to the New Hampshire Supreme Court (“Supreme Court”). The parties presented oral arguments to the Supreme Court on October 3, 2023. On December 28, 2023, the Supreme Court issued a decision reversing the Hearing Officer's Order and held that the Stage VI Permit was lawfully issued by DES, fully resolving this matter and upholding the Stage VI Permit.
On December 14, 2022, NCES filed an action in Merrimack Superior Court (“Superior Court”) seeking to invalidate the Hearing Officer’s Order as having been adopted in violation of New Hampshire’s statute governing access to public records and meetings in that the Council did not hold a public meeting to deliberate on the Hearing Officer’s Order. The Superior Court dismissed that proceeding by Order dated April 6, 2023, and NCES appealed that decision to the Supreme Court on April 18, 2023. NCES’s brief on appeal was filed with the Supreme Court on August 11, 2023. On September 26, 2023, CLF filed a Motion to Intervene as well as a memorandum of law asking the Supreme Court to uphold the Superior Court’s dismissal, to which NCES filed an Objection in response on October 23, 2023. The Council filed its brief on October 25, 2023. On November 9, 2023, the Supreme Court issued an Order denying CLF’s Motion to Intervene but treating CLF’s memorandum of law as an amicus brief. NCES filed a reply brief on November 14, 2023. On January 18, 2024, the Supreme Court issued an Order setting a deadline of February 2, 2024 for the parties to submit memoranda addressing the mootness of this appeal in light of the Supreme Court’s December 28, 2023 Order reversing the Hearing Officer’s Order and upholding the Stage VI Permit. NCES subsequently filed a Motion for Vacatur of the Superior Court’s April 6, 2023 Order and a Memorandum in Response to the Supreme Court's February 2, 2024 Order on January 23, 2024. On March 18, 2024, the Supreme Court issued an order finding the appeal to be moot and vacating the Superior Court’s April 6, 2023 Order, resolving this matter.
On September 20, 2022, NCES, which has since withdrawn as a party, and our subsidiary, Granite State Landfill, LLC (“GSL”), filed a Petition for Declaratory Judgment (“Petition”) in the Superior Court asking the Superior Court for a determination of the meaning and constitutionality of New Hampshire’s public benefit requirement, the same statute at issue in the Hearing Officer’s Order. CLF was granted intervention in the Petition proceeding on June 8, 2023. On December 19, 2023, GSL filed a Motion To Stay pending the outcome of the Supreme Court’s consideration of the Stage VI Permit appeal. The Stage VI Permit appeal was decided and upheld by Order of December 28, 2023 as discussed above. As NCES prevailed in the Stage VI Permit appeal, GSL and NCES voluntarily non-suited the Petition on January 2, 2024, resolving this matter.
On April 12, 2023, DES issued approval of construction plans for Stage VI, Phase II to NCES (“DES Approval”). CLF appealed the DES Approval to the Council on May 11, 2023, on the grounds that it failed to meet the public benefit criteria, and that the DES Approval conflicts with the Hearing Officer’s May 11, 2022 Order determining that DES had acted unlawfully in issuing the Permit, and requested expedited review. The Council has denied CLF's request for expedited review. CLF withdrew its appeal by notice to the Council on February 7, 2024. In light of CLF's withdrawal of appeal, this matter is fully resolved.
North Country Environmental Services Letter of Deficiency
On June 14, 2024, NCES received a Letter of Deficiency (the “Letter) from DES concerning alleged violations related to leachate management and leachate data and reporting. The Letter required certain actions to correct the deficiencies on a prescribed timeline, and NCES has met the deadlines for information submission. NCES has entered into preliminary discussions with the New Hampshire Department of Justice concerning an administrative order and associated penalties relative to the deficiencies.
Environmental Remediation Liabilities
We are subject to liability for environmental damage, including personal injury and property damage, that our solid waste, recycling and power generation facilities may cause to neighboring property owners, particularly as the result of the contamination of drinking water sources or soil, possibly including damage resulting from conditions that existed before we acquired the facilities. We may also be subject to liability for similar claims arising from off-site environmental contamination caused by pollutants or hazardous substances if we or our predecessors arrange or arranged to transport, treat or dispose of those materials.
We accrue for costs associated with environmental remediation obligations when such costs become both probable and reasonably estimable. Determining the method and ultimate cost of remediation requires that a number of assumptions be made. There can sometimes be a range of reasonable estimates of the costs associated with remediation of a site. In these cases, we use the amount within the range that constitutes our best estimate. In the early stages of the remediation process, particular components of the overall liability may not be reasonably estimable; in this instance we use the components of the liability that can be reasonably estimated as a surrogate for the liability. It is reasonably possible that we will need to adjust the liabilities recorded for remediation to reflect the effects of new or additional information, to the extent such information impacts the costs, timing or duration of the required actions. Future changes in our estimates of the cost, timing or duration of the required actions could have a material adverse effect on our consolidated financial position, results of operations and cash flows. We disclose outstanding environmental remediation matters that remain unsettled or are settled in the reporting period that we believe could have a material adverse effect on our financial condition, results of operations or cash flows.
19

We inflate the estimated costs in current dollars to the expected time of payment and discount the total cost to present value using a risk-free interest rate. The risk-free interest rates associated with our environmental remediation liabilities as of September 30, 2024 range between 1.5% and 7.1%. A summary of the changes to the aggregate environmental remediation liabilities for the nine months ended September 30, 2024 and 2023 follows:

| Nine Months Ended September 30,
| 2024 |  | 2023
Beginning balance | $ | 5,889 |  |  | $ | 6,335 |
Accretion expense | 71 |  |  | 75 |
Obligations settled (1) | (440) |  |  | (338) |
Ending balance | 5,520 |  |  | 6,072 |
Less: current portion | 1,607 |  |  | 1,799 |
Long-term portion | $ | 3,913 |  |  | $ | 4,273 |

(1)May include amounts that are being processed through accounts payable as a part of our disbursement cycle.
9. STOCKHOLDERS' EQUITY
Public Offering of Class A Common Stock
On September 19, 2024, we completed a public offering of 5,175 shares of our Class A common stock at a public offering price of $100.00 per share. After deducting stock issuance costs received as of September 30, 2024, including underwriting discounts, commissions and offering expenses, the offering resulted in net proceeds of $496,569. The net proceeds from this offering were used to repay borrowings under our Revolving Credit Facility and are further available to fund acquisition activity and for general corporate purposes.
Stock Based Compensation
Shares Available For Issuance
In the three months ended June 30, 2024, our stockholders approved the amendment and restatement of our 2016 Incentive Plan (the “Amended 2016 Plan”). Under the Amended 2016 Plan, we may grant awards up to an aggregate amount of shares equal to the sum of: (A) 4,000 shares of Class A common stock (subject to adjustment in the event of stock splits and other similar events) which is comprised of: (i) 1,750 shares of Class A common stock reserved for the issuance in connection with the Amended 2016 Plan, plus (ii) 2,250 shares of Class A common stock originally reserved for issuance under the 2016 Incentive Plan; plus (B) such additional number of shares of Class A common stock (up to approximately 2,723 shares) as is equal to the sum of the number of shares of Class A common stock that remained available for grant under the 2006 Stock Incentive Plan (“2006 Plan”) immediately prior to the expiration of the 2006 Plan and the number of shares of Class A common stock subject to awards granted under the 2006 Plan that expire, terminate or are otherwise surrendered, canceled, forfeited or repurchased by us. As of September 30, 2024, there were 2,198 Class A common stock equivalents available for future grant under the Amended 2016 Plan.
Stock Options
Stock options are granted at a price equal to the prevailing fair value of our Class A common stock at the date of grant. Generally, stock options granted have a term not to exceed ten years and vest over a one-year to five-year period from the date of grant.
The fair value of each stock option granted is estimated using a Black-Scholes option-pricing model, which requires extensive use of accounting judgment and financial estimation, including estimates of the expected term stock option holders will retain their vested stock options before exercising them and the estimated volatility of our Class A common stock price over the expected term.
20

A summary of stock option activity follows:

| Stock Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (years) |  | Aggregate Intrinsic Value
Outstanding, December 31, 2023 | 129 |  |  | $ | 66.03 |  |  |  |  |
Granted | — |  |  | $ | — |  |  |  |  |
Exercised | — |  |  | $ | — |  |  |  |  |
Forfeited | — |  |  | $ | — |  |  |  |  |
Outstanding, September 30, 2024 | 129 |  |  | $ | 66.03 |  |  | 6.7 |  | $ | 4,311 |
Exercisable, September 30, 2024 | 66 |  |  | $ | 51.26 |  |  | 5.3 |  | $ | 3,200 |

Stock-based compensation expense related to stock options was $141 and $443 during the three and nine months ended September 30, 2024, respectively, as compared to $126 and $374 during the three and nine months ended September 30, 2023, respectively. As of September 30, 2024, we had $1,665 of unrecognized stock-based compensation expense related to outstanding stock options to be recognized over a weighted average period of 3.2 years.
During the three and nine months ended September 30, 2024, the aggregate intrinsic value of stock options exercised was zero dollars.
Other Stock Awards
Restricted stock awards, restricted stock units and performance stock units, with the exception of market-based performance stock units, are granted at a price equal to the fair value of our Class A common stock at the date of grant. The fair value of each market-based performance stock unit is estimated using a Monte Carlo pricing model, which requires extensive use of accounting judgment and financial estimation, including the estimated share price appreciation plus, if applicable, the value of dividends of our Class A common stock as compared to the Russell 2000 Index over the requisite service period.
Typically, restricted stock awards granted to non-employee directors vest incrementally over a three-year period beginning on the first anniversary of the date of grant. Restricted stock units granted to non-employee directors vest in full on the first anniversary of the grant date. Restricted stock units granted to employees vest incrementally over an identified service period, typically three years, beginning on the grant date based on continued employment. Performance stock units granted to employees, including market-based performance stock units, vest at a future date following the grant date and are based on the attainment of performance targets and market achievements, as applicable.
A summary of restricted stock award, restricted stock unit and performance stock unit activity follows:

| Restricted Stock Awards, Restricted Stock Units, and Performance Stock Units (1) |  | Weighted Average Grant Date Fair Value |  | Weighted Average Remaining Contractual Term (years) |  | Aggregate Intrinsic Value
Outstanding, December 31, 2023 | 181 |  |  | $ | 84.82 |  |  |  |  |
Granted | 104 |  |  | $ | 99.43 |  |  |  |  |
Class A Common Stock Vested | (49) |  |  | $ | 79.39 |  |  |  |  |
Forfeited | (4) |  |  | $ | 85.37 |  |  |  |  |
Outstanding, September 30, 2024 | 232 |  |  | $ | 92.49 |  |  | 2.0 |  | $ | 23,109 |
Unvested, September 30, 2024 | 406 |  |  | $ | 94.41 |  |  | 1.7 |  | $ | 40,430 |

(1)Performance stock unit grants, including market-based performance stock units, are included at the 100% attainment level. Attainment of the maximum performance targets and market achievements would result in the issuance of an additional 174 shares of Class A common stock currently included in unvested.
Stock-based compensation expense related to restricted stock awards, restricted stock units and performance stock units was $2,338 and $6,563 during the three and nine months ended September 30, 2024, respectively, as compared to $2,112 and $6,007 during the three and nine months ended September 30, 2023, respectively.
During the three and nine months ended September 30, 2024, the total fair value of other stock awards vested was $579 and $4,676, respectively.
21

As of September 30, 2024, total unrecognized stock-based compensation expense related to outstanding restricted stock units was $6,998, which will be recognized over a weighted average period of 2.1 years. As of September 30, 2024, total expected unrecognized stock-based compensation expense related to outstanding performance stock units was $6,185, which will be recognized over a weighted average period of 1.8 years.
The weighted average fair value of market-based performance stock units granted during the nine months ended September 30, 2024 was $105.35 per award, which was calculated using a Monte Carlo pricing model assuming a risk-free interest rate of 4.31% and an expected volatility of 25.3% assuming no expected dividend yield. Risk-free interest rate is based on the U.S. Treasury yield curve for the expected service period of the award. Expected volatility is calculated using the daily volatility of our Class A common stock over the expected service period of the award.
The Monte Carlo pricing model requires extensive use of accounting judgment and financial estimation. Application of alternative assumptions could produce significantly different estimates of the fair value of stock-based compensation and consequently, the related amounts recognized in the consolidated statements of operations.
We also recorded $145 and $428 of stock-based compensation expense related to the Second Amended and Restated 1997 Employee Stock Purchase Plan during the three and nine months ended September 30, 2024, respectively, as compared to $120 and $318 during the three and nine months ended September 30, 2023, respectively.
Accumulated Other Comprehensive Loss, Net of Tax
A summary of the changes in the balances of each component of accumulated other comprehensive loss, net of tax follows:

|  |  | Interest Rate Swaps
Balance, December 31, 2023 |  |  | $ | (1,080) |
Other comprehensive loss before reclassifications |  |  | 1,741 |
Expense reclassified from accumulated other comprehensive loss into interest expense |  |  | (6,900) |
Income tax benefit related to items of other comprehensive loss |  |  | 1,555 |
Other comprehensive loss, net of tax |  |  | (3,604) |
Balance, September 30, 2024 |  |  | $ | (4,684) |

A summary of reclassifications out of accumulated other comprehensive loss, net of tax into earnings follows:

|  | Three Months Ended September 30, |  | Nine Months Ended September 30, |  |
|  | 2024 |  | 2023 |  | 2024 |  | 2023 |  |
Accumulated Other Comprehensive Loss, Net of Tax |  | Amounts Reclassified Out of Accumulated Other Comprehensive Loss, Net of Tax |  | Affected Line Item in the Consolidated Statements of Operations
Interest rate swaps |  | $ | (2,289) |  |  | $ | (1,805) |  |  | $ | (6,900) |  |  | $ | (4,181) |  |  | Interest expense
|  | 2,289 |  |  | 1,805 |  |  | 6,900 |  |  | 4,181 |  |  | Income before income taxes
|  | 762 |  |  | 495 |  |  | 2,034 |  |  | 1,146 |  |  | Provision for income taxes
|  | $ | 1,527 |  |  | $ | 1,310 |  |  | $ | 4,866 |  |  | $ | 3,035 |  |  | Net income

22

10. EARNINGS PER SHARE
Basic earnings per share is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted earnings per share is calculated based on the combined weighted average number of common shares and potentially dilutive shares, which include the assumed exercise of employee stock options, unvested restricted stock awards, unvested restricted stock units and unvested performance stock units, including market-based performance units based on the expected achievement of performance targets. In computing diluted earnings per share, we utilize the treasury stock method.
A summary of the numerator and denominators used in the computation of earnings per share follows:

| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Numerator: |  |  |  |  |  |  |
Net income | $ | 5,771 |  |  | $ | 18,172 |  |  | $ | 8,660 |  |  | $ | 27,210 |
Denominators: |  |  |  |  |  |  |
Number of shares outstanding, end of period: |  |  |  |  |  |  |
Class A common stock | 62,325 |  |  | 56,994 |  |  | 62,325 |  |  | 56,994 |
Class B common stock | 988 |  |  | 988 |  |  | 988 |  |  | 988 |
Effect of weighted average shares outstanding (1) | (4,505) |  |  | (20) |  |  | (4,995) |  |  | (3,754) |
Basic weighted average common shares outstanding | 58,808 |  |  | 57,962 |  |  | 58,318 |  |  | 54,228 |
Impact of potentially dilutive securities: |  |  |  |  |  |  |
Dilutive effect of stock options and other stock awards | 113 |  |  | 100 |  |  | 97 |  |  | 97 |
Diluted weighted average common shares outstanding | 58,921 |  |  | 58,062 |  |  | 58,415 |  |  | 54,325 |
Anti-dilutive potentially issuable shares | 7 |  |  | 78 |  |  | 24 |  |  | 75 |

(1)Adjustments associated with the timing of 5,175 shares of Class A common stock issued as part of the public offering, completed on September 19, 2024, and 6,053 shares of Class A common stock issued as part of the public offering, completed on June 16, 2023. See Note 9, Stockholders’ Equity for disclosure regarding the public offering of Class A common stock completed September 19, 2024.
11. OTHER ITEMS AND CHARGES
Expense from Acquisition Activities
In the three and nine months ended September 30, 2024, we recorded charges of $5,450 and $18,297, respectively, and in the three and nine months ended September 30, 2023, we recorded charges of $3,261 and $9,801, respectively, comprised primarily of legal, consulting, rebranding and other costs associated with the due diligence, acquisition and integration of acquired businesses. The nine months ended September 30, 2024 included a charge for an increase in the reserve against accounts receivable of the businesses acquired in the GFL Acquisition as a result of our inability to pursue collections during the transition services period with the seller, resulting in accounts receivable aged beyond what is typical in our business.
Southbridge Landfill Closure Charge
In the fiscal year ended December 31, 2017, we initiated a plan to cease operations of the Southbridge Landfill and later closed it in November 2018 when it reached its final capacity. In both the three and nine months ended September 30, 2024, we recorded a non-cash charge of $8,477, which is associated with our receipt of a final closure permit (the “Closure Permit”) from the Massachusetts Department of Environmental Protection related to the Southbridge Landfill. Pursuant to the terms of the Closure Permit, we are required to meet certain general permit conditions and certain specific permit conditions (collectively, the “Conditions”), including environmental monitoring, third party inspections, inspection of the final cover, leachate sampling, post-closure monitoring, and other post-closure requirements. We have revised the accrued post-closure liability for the Southbridge Landfill to reflect the estimated cost of satisfying the expanded Conditions as currently specified in the Closure Permit.
Legal Settlement
In the nine months ended September 30, 2023, we recorded a charge of $6,150 due to reaching an agreement at a mediation held on June 20, 2023 with the collective class members of a class action lawsuit relating to certain claims under the Fair Labor Standards Act of 1938 as well as state wage and hours laws. The settlement agreement, which received court approval, was executed on July 24, 2023 and subsequently paid in the nine months ended September 30, 2024.
23

12. RELATED PARTY TRANSACTIONS
Leases
In the nine months ended September 30, 2024, we extended the lease related to our corporate headquarters in Rutland, Vermont through February 2039 and the lease associated with our Montpelier, Vermont facility through May 2039. Both facilities are leased from a partnership of which John Casella, our Chairman and Chief Executive Officer, and Douglas Casella, a member of our Board of Directors, are the general partners. The terms of the lease agreements require a monthly payment of approximately $34, subject to a fixed annual escalation.
13. FAIR VALUE OF FINANCIAL INSTRUMENTS
We use a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. These tiers include: Level 1, defined as quoted market prices in active markets for identical assets or liabilities; Level 2, defined as inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; and Level 3, defined as unobservable inputs that are not corroborated by market data.
We use valuation techniques that maximize the use of market prices and observable inputs and minimize the use of unobservable inputs. In measuring the fair value of our financial assets and liabilities, we rely on market data or assumptions that we believe market participants would use in pricing an asset or a liability.
Assets and Liabilities Accounted for at Fair Value
Our financial instruments include cash, cash equivalents and restricted cash, accounts receivable, restricted investment securities held in trust on deposit with various banks as collateral for our obligations relative to our landfill final capping, closure and post-closure costs, interest rate derivatives, trade payables and debt. The carrying values of cash and cash equivalents, accounts receivable and trade payables approximate their respective fair values due to their short-term nature. The fair value of restricted investment securities held in trust, which are valued using quoted market prices, are included as restricted assets in the Level 1 tier below. The fair value of the interest rate derivatives included in the Level 2 tier below is calculated using discounted cash flow valuation methodologies based upon Term SOFR yield curves that are observable at commonly quoted intervals for the full term of the swaps. We recognize all derivatives accounted for on the balance sheet at fair value.
Recurring Fair Value Measurements
Summaries of our financial assets and liabilities that are measured at fair value on a recurring basis follow:

| Fair Value Measurement at September 30, 2024 Using:
| Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets: |  |  |  |  |
Restricted investment securities - landfill closure | $ | 2,422 |  |  | $ | — |  |  | $ | — |
Interest rate swaps | — |  |  | 5,687 |  |  | — |
| $ | 2,422 |  |  | $ | 5,687 |  |  | $ | — |
Liabilities: |  |  |  |  |
Interest rate swaps | $ | — |  |  | $ | 12,243 |  |  | $ | — |

24

| Fair Value Measurement at December 31, 2023 Using:
| Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets: |  |  |  |  |
Restricted investment securities - landfill closure | $ | 2,203 |  |  | $ | — |  |  | $ | — |
Interest rate swaps | — |  |  | 10,364 |  |  | — |
| $ | 2,203 |  |  | $ | 10,364 |  |  | $ | — |
Liabilities: |  |  |  |  |
Interest rate swaps | $ | — |  |  | $ | 11,762 |  |  | $ | — |

Fair Value of Debt
As of September 30, 2024, the fair value of our fixed rate debt, including our FAME Bonds 2005R-3, FAME Bonds 2015R-1, FAME Bonds 2015R-2, Vermont Bonds 2013, Vermont Bonds 2022A-1, New York Bonds 2014R-1, New York Bonds 2014R-2, New York Bonds 2020, New York Bonds 2020R-2 and New Hampshire Bonds (collectively, the “Industrial Revenue Bonds”) was approximately $232,547 and the carrying value was $232,000. The fair value of the Industrial Revenue Bonds is considered to be Level 2 within the fair value hierarchy as the fair value is determined using market approach pricing provided by a third-party that utilizes pricing models and pricing systems, mathematical tools and judgment to determine the evaluated price for the security based on the market information of each of the bonds or securities with similar characteristics.
As of September 30, 2024, the carrying value of our Term Loan Facility was $800,000 and the carrying value of our Revolving Credit Facility was zero dollars. Their fair values are based on current borrowing rates for similar types of borrowing arrangements, or Level 2 inputs, and approximate their carrying values.
Although we have determined the estimated fair value amounts of the Industrial Revenue Bonds using available market information and commonly accepted valuation methodologies, a change in available market information, and/or the use of different assumptions and/or estimation methodologies could have a material effect on the estimated fair values. These amounts have not been revalued, and current estimates of fair value could differ significantly from the amounts presented.
25

14. SEGMENT REPORTING
We report selected information about our reportable operating segments in a manner consistent with that used for internal management reporting. We classify our solid waste operations on a geographic basis through regional operating segments, our Eastern, Western and Mid-Atlantic regions. Revenues associated with our solid waste operations are derived mainly from solid waste collection and disposal services, including landfill, transfer station and transportation services, landfill gas-to-energy services, and processing services in the eastern United States. Our Resource Solutions operating segment leverages our core competencies in materials processing, industrial recycling, organics and resource management service offerings to deliver a comprehensive solution for our larger commercial, municipal, institutional and industrial customers that have more diverse waste and recycling needs. Revenues associated with our Resource Solutions operations are comprised of processing services and non-processing services, which we refer to as our National Accounts business. Revenues from processing services are derived from customers in the form of processing fees, tipping fees, commodity sales, and organic material sales. Revenues from our National Accounts business are derived from brokerage services and overall resource management services providing a wide range of environmental services and resource management solutions to large and complex organizations, as well as traditional collection, disposal and recycling services provided to large account multi-site customers. Legal, tax, information technology, human resources, certain finance and accounting and other administrative functions are included in our Corporate Entities segment, which is not a reportable operating segment. Corporate Entities results reflect those costs not allocated to our reportable operating segments.
Three Months Ended September 30, 2024

Segment |  | Outside revenues |  | Inter-company revenues |  | Depreciation and amortization |  | Operating income (loss) |  | Total assets
Eastern |  | $ | 110,404 |  |  | $ | 28,836 |  |  | $ | 14,466 |  |  | $ | 5,593 |  |  | $ | 437,890 |
Western |  | 150,756 |  |  | 53,891 |  |  | 25,523 |  |  | 19,654 |  |  | 1,006,158 |
Mid-Atlantic |  | 64,005 |  |  | 654 |  |  | 13,776 |  |  | (5,109) |  |  | 837,855 |
Resource Solutions |  | 86,462 |  |  | 2,981 |  |  | 4,472 |  |  | 5,545 |  |  | 255,160 |
Corporate Entities |  | — |  |  | — |  |  | 937 |  |  | (1,304) |  |  | 586,166 |
Eliminations |  | — |  |  | (86,362) |  |  | — |  |  | — |  |  | — |
|  | $ | 411,627 |  |  | $ | — |  |  | $ | 59,174 |  |  | $ | 24,379 |  |  | $ | 3,123,229 |

Three Months Ended September 30, 2023

Segment |  | Outside revenues |  | Inter-company revenues |  | Depreciation and amortization |  | Operating income (loss) |  | Total assets
Eastern |  | $ | 97,507 |  |  | $ | 24,911 |  |  | $ | 12,381 |  |  | $ | 11,160 |  |  | $ | 417,138 |
Western |  | 136,019 |  |  | 46,307 |  |  | 20,976 |  |  | 20,462 |  |  | 986,659 |
Mid-Atlantic (1) |  | 43,722 |  |  | 212 |  |  | 10,182 |  |  | (747) |  |  | 557,710 |
Resource Solutions |  | 75,487 |  |  | 4,172 |  |  | 3,452 |  |  | 4,110 |  |  | 242,413 |
Corporate Entities |  | — |  |  | — |  |  | 745 |  |  | (797) |  |  | 294,095 |
Eliminations |  | — |  |  | (75,602) |  |  | — |  |  | — |  |  | — |
|  | $ | 352,735 |  |  | $ | — |  |  | $ | 47,736 |  |  | $ | 34,188 |  |  | $ | 2,498,015 |

Nine Months Ended September 30, 2024

Segment | Outside revenues |  | Inter-company revenues |  | Depreciation and amortization |  | Operating income (loss) |  | Total assets
Eastern | $ | 310,899 |  |  | $ | 77,746 |  |  | $ | 41,950 |  |  | $ | 19,757 |  |  | $ | 437,890 |
Western | 426,127 |  |  | 153,736 |  |  | 75,560 |  |  | 46,331 |  |  | 1,006,158 |
Mid-Atlantic | 148,020 |  |  | 1,243 |  |  | 34,338 |  |  | (16,989) |  |  | 837,855 |
Resource Solutions | 244,751 |  |  | 8,940 |  |  | 13,806 |  |  | 11,207 |  |  | 255,160 |
Corporate Entities | — |  |  | — |  |  | 2,895 |  |  | (6,074) |  |  | 586,166 |
Eliminations | — |  |  | (241,665) |  |  | — |  |  | — |  |  | — |
Total | $ | 1,129,797 |  |  | $ | — |  |  | $ | 168,549 |  |  | $ | 54,232 |  |  | $ | 3,123,229 |

26

Nine Months Ended September 30, 2023

Segment | Outside revenues |  | Inter-company revenues |  | Depreciation and amortization |  | Operating income (loss) |  | Total assets
Eastern | $ | 274,740 |  |  | $ | 67,843 |  |  | $ | 36,431 |  |  | $ | 20,819 |  |  | $ | 417,138 |
Western | 371,281 |  |  | 125,208 |  |  | 57,559 |  |  | 51,880 |  |  | 986,659 |
Mid-Atlantic (1) | 43,722 |  |  | 212 |  |  | 10,182 |  |  | (747) |  |  | 557,710 |
Resource Solutions | 215,232 |  |  | 10,975 |  |  | 9,618 |  |  | 2,854 |  |  | 242,413 |
Corporate Entities | — |  |  | — |  |  | 2,305 |  |  | (7,739) |  |  | 294,095 |
Eliminations | — |  |  | (204,238) |  |  | — |  |  | — |  |  | — |
Total | $ | 904,975 |  |  | $ | — |  |  | $ | 116,095 |  |  | $ | 67,067 |  |  | $ | 2,498,015 |

(1)Operations under the Mid-Atlantic region commenced July 1, 2023.
A summary of our revenues attributable to services provided follows:

| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Collection | $ | 252,579 |  |  | $ | 206,093 |  |  | $ | 687,896 |  |  | $ | 495,917 |
Disposal | 67,453 |  |  | 66,337 |  |  | 182,716 |  |  | 181,433 |
Landfill gas-to-energy | 1,651 |  |  | 1,797 |  |  | 6,144 |  |  | 5,042 |
Processing | 3,482 |  |  | 3,021 |  |  | 8,290 |  |  | 7,351 |
Solid waste operations | 325,165 |  |  | 277,248 |  |  | 885,046 |  |  | 689,743 |
Processing | 34,954 |  |  | 27,782 |  |  | 97,992 |  |  | 75,970 |
National Accounts | 51,508 |  |  | 47,705 |  |  | 146,759 |  |  | 139,262 |
Resource Solutions operations | 86,462 |  |  | 75,487 |  |  | 244,751 |  |  | 215,232 |
Total revenues | $ | 411,627 |  |  | $ | 352,735 |  |  | $ | 1,129,797 |  |  | $ | 904,975 |

27

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following discussion should be read in conjunction with our unaudited consolidated financial statements and notes thereto included under Item 1. “Financial Statements”. In addition, reference should be made to our audited consolidated financial statements and notes thereto and related “Management’s Discussion and Analysis of Financial Condition and Results of Operations” appearing in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 (“fiscal year 2023”) filed with the Securities and Exchange Commission on February 16, 2024 (“2023 Form 10-K”).
This Quarterly Report on Form 10-Q and, in particular, this “Management’s Discussion and Analysis of Financial Condition and Results of Operations”, may contain or incorporate a number of forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Exchange Act of 1934, as amended, including statements regarding:
•our ability to consummate acquisitions, integrate acquired businesses and operations and achieve the expected benefits, including the expected annualized revenues from such acquired businesses and operations;
•our ability to achieve the key strategies of our long-term strategic plan;
•the projected development of additional disposal capacity or expectations regarding permits for existing capacity;
•the outcome of any legal or regulatory matter;
•expected liquidity and financing plans;
•expected future revenues, operations, expenditures and cash needs;
•whether our pricing programs and operational initiatives will outpace higher operating and construction costs from inflation and regulatory changes;
•fluctuations in recycling commodity pricing, increases in landfill tipping fees and fuel costs and general economic and weather conditions;
•projected future obligations related to final capping, closure and post-closure costs of our existing landfills and any disposal facilities which we may own or operate in the future;
•our ability to use our net operating losses and tax positions;
•our ability to service our debt obligations;
•the recoverability or impairment of any of our assets or goodwill;
•estimates of the potential markets for our products and services, including the anticipated drivers for future growth;
•sales and marketing plans or price and volume assumptions;
•potential business combinations or divestitures;
•projected improvements to our infrastructure and the impact of such improvements on our business and operations; and
•general economic factors, such as ongoing or potential geopolitical conflict, pandemics, recessions, or similar national or global events, and general macroeconomic conditions, including, among other things, consumer confidence, global supply chain disruptions, inflation, labor supply, fuel prices, interest rates and access to capital markets that generally are not within our control, and our exposure to credit and counterparty risk.
In addition, any statements contained in or incorporated by reference into this report that are not statements of historical fact should be considered forward-looking statements. You can identify these forward-looking statements by the use of the words “believes”, “expects”, “anticipates”, “plans”, “may”, “will”, “would”, “intends”, “estimates” and other similar expressions, whether in the negative or affirmative. These forward-looking statements are based on current expectations, estimates, forecasts and projections about the industry and markets in which we operate, as well as management’s beliefs and assumptions, and should be read in conjunction with our consolidated financial statements and notes thereto. These forward-looking statements are not guarantees of future performance, circumstances or events. The occurrence of the events described and the achievement of the expected results depends on many events, some or all of which are not predictable or within our control. Actual results may differ materially from those set forth in the forward-looking statements.
28

There are a number of important risks and uncertainties that could cause our actual results to differ materially from those indicated by such forward-looking statements. These risks and uncertainties include, without limitation, those detailed in Item 1A. “Risk Factors” in our 2023 Form 10-K and those included under Part II. Item 1A. “Risk Factors” of this Quarterly Report on Form 10-Q.
There may be additional risks that we are not presently aware of or that we currently believe are immaterial, which could have an adverse impact on our business. We explicitly disclaim any obligation to update any forward-looking statements whether as the result of new information, future events or otherwise, except as otherwise required by law.
Company Overview
Casella Waste Systems, Inc., a Delaware corporation, and its wholly-owned subsidiaries (collectively, “we”, “us” or “our”), is a regional, vertically integrated solid waste services company. We provide resource management expertise and services to residential, commercial, municipal, institutional and industrial customers, primarily in the areas of solid waste collection and disposal, transfer, recycling and organics services.
We provide integrated solid waste services in ten states: Vermont, New Hampshire, New York, Massachusetts, Connecticut, Maine, Pennsylvania, Delaware, New Jersey and Maryland, with our headquarters located in Rutland, Vermont. We manage our solid waste operations on a geographic basis through regional operating segments, the Eastern, Western and Mid-Atlantic regions, each of which provides a comprehensive range of non-hazardous solid waste services. We manage our resource renewal operations through the Resource Solutions operating segment, which leverages our core competencies in materials processing, industrial recycling, organics and resource management service offerings to deliver a comprehensive solution for our larger commercial, municipal, institutional and industrial customers that have more diverse waste and recycling needs. Legal, tax, information technology, human resources, certain finance and accounting and other administrative functions are included in our Corporate Entities segment.
As of October 15, 2024, we owned and/or operated 70 solid waste collection operations, 71 transfer stations, 28 recycling facilities, eight Subtitle D landfills, three landfill gas-to-energy facilities and one landfill permitted to accept construction and demolition (“C&D”) materials. We also housed two landfill gas-to-energy facilities, which are owned and operated by third parties, at landfills we owned and/or operated.
Results of Operations
Recent Events
Acquisitions
Subsequent to September 30, 2024, we completed the purchase of all the equity interests of Royal Carting and Welsh Sanitation and related real estate assets. This acquisition includes collection and transfer operations in the middle and lower Hudson Valley regions of New York as well as western Connecticut.
Revenues
We manage our solid waste operations, which include a full range of solid waste services, on a geographic basis through regional operating segments, which we designate as the Eastern, Western and Mid-Atlantic regions. Revenues associated with our solid waste operations are derived mainly from fees charged to customers for solid waste collection and disposal services, including landfill, transfer station and transportation services, landfill gas-to-energy services, and processing services in the eastern United States. We derive a substantial portion of our collection revenues from commercial, industrial and municipal services that are generally performed under service agreements or pursuant to contracts with municipalities. The majority of our residential collection services are performed on a subscription basis with individual property owners or occupants. Landfill and transfer customers are charged a tipping fee on a per ton basis for disposing of their solid waste at our disposal facilities and transfer stations. We also generate and sell electricity at certain of our landfill facilities. We manage our resource renewal operations through the Resource Solutions operating segment, which includes processing services and non-processing services, which we refer to as our National Accounts business. Revenues from processing services are derived from customers in the form of processing fees, tipping fees, commodity sales, primarily comprised of newspaper, corrugated containers, plastics, ferrous and aluminum, and organic materials such as our earthlife® soils products including fertilizers, composts and mulches. Revenues from our National Accounts business are derived from brokerage services and overall resource management services providing a wide range of environmental services and resource management solutions to large and complex organizations, as well as traditional collection, disposal and recycling services provided to large account multi-site customers.
29

The table below shows revenues attributable to services provided (dollars in millions and as a percentage of total revenues) for the following periods:

| Three Months Ended September 30, |  | $ Change |  | Nine Months Ended September 30, |  | $ Change
| 2024 |  | 2023 |  | 2024 |  | 2023 |
Collection | $ | 252.6 |  |  | 61.4 | % |  | $ | 206.1 |  |  | 58.4 | % |  | $ | 46.5 |  |  | $ | 687.9 |  |  | 60.9 | % |  | $ | 495.9 |  |  | 54.8 | % |  | $ | 192.0 |
Disposal | 67.5 |  |  | 16.4 | % |  | 66.3 |  |  | 18.8 | % |  | 1.2 |  |  | 182.7 |  |  | 16.2 | % |  | 181.4 |  |  | 20.0 | % |  | 1.3 |
Landfill gas-to-energy | 1.7 |  |  | 0.4 | % |  | 1.8 |  |  | 0.5 | % |  | (0.1) |  |  | 6.1 |  |  | 0.5 | % |  | 5.0 |  |  | 0.6 | % |  | 1.1 |
Processing | 3.4 |  |  | 0.8 | % |  | 3.0 |  |  | 0.9 | % |  | 0.4 |  |  | 8.3 |  |  | 0.7 | % |  | 7.4 |  |  | 0.8 | % |  | 0.9 |
Solid waste operations | 325.2 |  |  | 79.0 | % |  | 277.2 |  |  | 78.6 | % |  | 48.0 |  |  | 885.0 |  |  | 78.3 | % |  | 689.7 |  |  | 76.2 | % |  | 195.3 |
Processing | 34.9 |  |  | 8.5 | % |  | 27.8 |  |  | 7.9 | % |  | 7.1 |  |  | 98.0 |  |  | 8.7 | % |  | 76.0 |  |  | 8.4 | % |  | 22.0 |
National Accounts | 51.5 |  |  | 12.5 | % |  | 47.7 |  |  | 13.5 | % |  | 3.8 |  |  | 146.8 |  |  | 13.0 | % |  | 139.3 |  |  | 15.4 | % |  | 7.5 |
Resource Solutions operations | 86.4 |  |  | 21.0 | % |  | 75.5 |  |  | 21.4 | % |  | 10.9 |  |  | 244.8 |  |  | 21.7 | % |  | 215.3 |  |  | 23.8 | % |  | 29.5 |
Total revenues | $ | 411.6 |  |  | 100.0 | % |  | $ | 352.7 |  |  | 100.0 | % |  | $ | 58.9 |  |  | $ | 1,129.8 |  |  | 100.0 | % |  | $ | 905.0 |  |  | 100.0 | % |  | $ | 224.8 |

Solid waste revenues
A summary of the period-to-period changes in solid waste revenues (dollars in millions and as percentage growth of solid waste revenues) follows:

| Period-to-Period Change for the Three Months Ended September 30, 2024 vs. 2023 |  | Period-to-Period Change for the Nine Months Ended September 30, 2024 vs. 2023
| Amount |  | % Growth |  | Amount |  | % Growth
Price | $ | 15.2 |  |  | 5.5 | % |  | $ | 38.3 |  |  | 5.6 | %
Volume | (2.8) |  |  | (1.0) | % |  | (12.2) |  |  | (1.8) | %
Surcharges and other fees | (0.5) |  |  | (0.2) | % |  | (1.2) |  |  | (0.2) | %
Commodity price and volume | — |  |  | — | % |  | 1.6 |  |  | 0.2 | %
Acquisitions | 36.1 |  |  | 13.0 | % |  | 168.8 |  |  | 24.5 | %
Solid waste revenues | $ | 48.0 |  |  | 17.3 | % |  | $ | 195.3 |  |  | 28.3 | %

The most significant items impacting the change in our solid waste revenues during the three and nine months ended September 30, 2024 as compared to the prior year periods are summarized below:
•Price increased solid waste revenues both quarterly and year-to-date due to (i) favorable collection pricing of $12.6 million, or 6.1% as a percentage of collection operations quarterly, and $30.6 million, or 6.2% as a percentage of collection operations year-to-date, and (ii) favorable disposal pricing of $2.6 million, or 3.8% as a percentage of disposal operations quarterly, and $7.7 million, or 4.2% as a percentage of disposal operations year-to-date, driven by our landfill and transfer station operations.
•Volume decreased solid waste revenues both quarterly and year-to-date due to (i) lower disposal volumes of $(1.3) million, or (2.0)% as a percentage of disposal operations quarterly, and $(7.3) million, or (4.1)% as a percentage of disposal operations year-to-date, primarily from lower landfill volumes and to a lesser extent year-to-date transportation volumes, partially offset by higher transfer station volumes, in addition to (ii) lower collection volumes of $(1.5) million, or (0.7)% as a percentage of collection operations quarterly, and $(4.9) million, or (1.0)% as a percentage of collection operations year-to-date.
•Acquisitions increased solid waste revenues both quarterly and year-to-date due to activity in line with our growth strategy associated with the timing and acquisition of five business in the nine months ended September 30, 2024, and the rollover impact of seven acquisitions completed in fiscal year 2023, including the acquisition of solid waste collection, transfer and recycling operations in Pennsylvania, Maryland and Delaware, which are the basis of one of our regional operating segments, the Mid-Atlantic region (the “GFL Acquisition”).
Resource Solutions revenues
See “Segment Reporting” below for discussion over the period-to-period changes in Resource Solutions revenues.
30

Operating Expenses
A summary of cost of operations, general and administration expense, and depreciation and amortization expense is as follows (dollars in millions and as a percentage of total revenues):

| Three Months Ended September 30, |  | $ Change |  | Nine Months Ended September 30, |  | $ Change
| 2024 |  | 2023 |  | 2024 |  | 2023 |
Cost of operations | $ | 267.1 |  |  | 64.9 | % |  | $ | 226.3 |  |  | 64.2 | % |  | $ | 40.8 |  |  | $ | 741.7 |  |  | 65.6 | % |  | $ | 592.9 |  |  | 65.5 | % |  | $ | 148.8 |
General and administration | $ | 47.0 |  |  | 11.4 | % |  | $ | 41.2 |  |  | 11.7 | % |  | $ | 5.8 |  |  | $ | 138.5 |  |  | 12.3 | % |  | $ | 112.7 |  |  | 12.5 | % |  | $ | 25.8 |
Depreciation and amortization | $ | 59.2 |  |  | 14.4 | % |  | $ | 47.7 |  |  | 13.5 | % |  | $ | 11.5 |  |  | $ | 168.5 |  |  | 14.9 | % |  | $ | 116.1 |  |  | 12.8 | % |  | $ | 52.4 |

Cost of Operations
Cost of operations includes: (i) direct costs, which consist of the costs of purchased materials and third-party transportation and disposal costs, including third-party tipping fees; (ii) direct labor costs, which include salaries, wages, incentive compensation and related benefit costs such as health and welfare benefits and workers compensation; (iii) direct operational costs, which include landfill operating costs such as accretion expense related to final capping, closure and post-closure obligations, leachate treatment and disposal costs and depletion of landfill operating lease obligations, vehicle insurance costs, host community fees and royalties; (iv) fuel costs used by our vehicles and in conducting our operations; (v) maintenance and repair costs relating to our vehicles, equipment and containers; and (vi) other operational costs including facility costs.
A summary of the major components of our cost of operations is as follows (dollars in millions and as a percentage of total revenues):

| Three Months Ended September 30, |  | $ Change |  | Nine Months Ended September 30, |  | $ Change
| 2024 |  | 2023 |  | 2024 |  | 2023 |
Direct costs | $ | 96.1 |  |  | 23.3 | % |  | $ | 86.7 |  |  | 24.6 | % |  | $ | 9.4 |  |  | $ | 262.7 |  |  | 23.3 | % |  | $ | 225.5 |  |  | 24.9 | % |  | $ | 37.2 |
Direct labor costs | 63.1 |  |  | 15.3 | % |  | 49.3 |  |  | 14.0 | % |  | 13.8 |  |  | 169.6 |  |  | 15.0 | % |  | 123.3 |  |  | 13.6 | % |  | 46.3 |
Direct operational costs | 29.1 |  |  | 7.1 | % |  | 25.1 |  |  | 7.1 | % |  | 4.0 |  |  | 84.1 |  |  | 7.4 | % |  | 71.1 |  |  | 7.9 | % |  | 13.0 |
Fuel costs | 14.4 |  |  | 3.5 | % |  | 13.6 |  |  | 3.9 | % |  | 0.8 |  |  | 41.2 |  |  | 3.7 | % |  | 34.0 |  |  | 3.8 | % |  | 7.2 |
Maintenance and repair costs | 33.8 |  |  | 8.3 | % |  | 27.1 |  |  | 7.7 | % |  | 6.7 |  |  | 96.2 |  |  | 8.4 | % |  | 72.6 |  |  | 8.0 | % |  | 23.6 |
Other operational costs | 30.6 |  |  | 7.4 | % |  | 24.5 |  |  | 6.9 | % |  | 6.1 |  |  | 87.9 |  |  | 7.8 | % |  | 66.4 |  |  | 7.3 | % |  | 21.5 |
| $ | 267.1 |  |  | 64.9 | % |  | $ | 226.3 |  |  | 64.2 | % |  | $ | 40.8 |  |  | $ | 741.7 |  |  | 65.6 | % |  | $ | 592.9 |  |  | 65.5 | % |  | $ | 148.8 |

These cost categories may change from time to time and may not be comparable to similarly titled categories presented by other companies.
The most significant items impacting the changes in our cost of operations during the three and nine months ended September 30, 2024 as compared to the prior year periods are summ arized below:
•Direct costs increased in aggregate dollars primarily due to (i) acquisitions and (ii) higher third-party disposal rates reflecting cost inflation; partially offset in year-to-date dollars, and more than offset as a percentage of revenues, by lower hauling and transportation costs in our Resource Solutions segment primarily related to municipal biosolid volumes in our National Accounts business.
•Direct labor costs increased primarily due to (i) acquisitions and (ii) higher wages and benefit costs reflecting cost inflation; partially offset by improved routing efficiencies.
•Direct operational costs increased in aggregate dollars primarily due to (i) acquisitions, (ii) higher leachate disposal costs, (iii) higher short term rental expense driven by delays in the delivery of fleet vehicles as well as needs from entering new municipal contracts, (iv) higher accretion expense associated with changes in the timing and cost estimates of our closure, post-closure, and capping obligations, (v) higher accruals related to insurance claims quarterly and (vi) general cost inflation.
•Fuel costs increased in aggregate dollars due to acquisitions, partially offset primarily by lower diesel fuel prices. See Item 3. “Quantitative and Qualitative Disclosures about Market Risk” of this Quarterly Report on Form 10-Q for additional information regarding our fuel costs.
•Maintenance and repair costs increased due to (i) acquisitions, (ii) higher personnel and parts costs reflecting cost inflation, and (iii) higher vehicle maintenance costs driven by delays in the delivery of fleet replacements.
•Other operational costs increased due to (i) acquisitions, (ii) higher spending associated with supporting acquisition-related growth, and (iii) general cost inflation.
31

General and Administration
General and administration expense includes: (i) labor costs, which consist of salaries, wages, incentive compensation and related benefit costs such as health and welfare benefits and workers compensation costs related to management, clerical and administrative functions; (ii) professional service fees; (iii) provision for expected credit losses; and (iv) other overhead costs including those associated with marketing, sales and community relations efforts.
A summary of the major components of our general and administration expense is as follows (dollars in millions and as a percentage of total revenues):

| Three Months Ended September 30, |  | $ Change |  | Nine Months Ended September 30, |  | $ Change
| 2024 |  | 2023 |  | 2024 |  | 2023 |
Labor costs | $ | 30.2 |  |  | 7.3 | % |  | $ | 26.8 |  |  | 7.6 | % |  | $ | 3.4 |  |  | $ | 89.5 |  |  | 7.9 | % |  | $ | 74.1 |  |  | 8.2 | % |  | $ | 15.4 |
Professional fees | 2.6 |  |  | 0.6 | % |  | 2.2 |  |  | 0.6 | % |  | 0.4 |  |  | 10.6 |  |  | 0.9 | % |  | 6.9 |  |  | 0.8 | % |  | 3.7 |
Provision for expected credit losses | 1.4 |  |  | 0.3 | % |  | 0.7 |  |  | 0.2 | % |  | 0.7 |  |  | 1.4 |  |  | 0.1 | % |  | 1.7 |  |  | 0.2 | % |  | (0.3) |
Other | 12.8 |  |  | 3.2 | % |  | 11.5 |  |  | 3.3 | % |  | 1.3 |  |  | 37.0 |  |  | 3.4 | % |  | 30.0 |  |  | 3.3 | % |  | 7.0 |
| $ | 47.0 |  |  | 11.4 | % |  | $ | 41.2 |  |  | 11.7 | % |  | $ | 5.8 |  |  | $ | 138.5 |  |  | 12.3 | % |  | $ | 112.7 |  |  | 12.5 | % |  | $ | 25.8 |

These cost categories may change from time to time and may not be comparable to similarly titled categories presented by other companies.
General and administration expense increased in aggregate dollars in the three and nine months ended September 30, 2024 as compared to the prior year periods, primarily due to (i) acquisition activity, including increased labor costs, professional fees and other costs to support our growth and acquisition strategy, (ii) escalation of salary, wage, incentive compensation and benefit costs, (iii) year-to-date legal expenses associated with employee separation, (iv) higher accruals related to insurance claims quarterly, (v) an increased provision for expected credit losses quarterly in our Mid-Atlantic region due to the aging of receivables and (vi) general cost inflation.
Depreciation and Amortization
Depreciation and amortization expense includes: (i) depreciation of property and equipment (including assets recorded for finance leases) on a straight-line basis over the estimated useful lives of the assets; (ii) amortization of landfill costs (including those costs incurred and all estimated future costs for landfill development and construction, along with asset retirement costs arising from closure and post-closure obligations) on a units-of-consumption method as landfill airspace is consumed over the total estimated remaining capacity of a site, which includes both permitted capacity and unpermitted expansion capacity that meets certain criteria for amortization purposes, and amortization of landfill asset retirement costs arising from final capping obligations on a units-of-consumption method as airspace is consumed over the estimated capacity associated with each final capping event; and (iii) amortization of intangible assets with a definite life, based on the economic benefit provided, or using the sum of years digits or straight-line methods over the definitive terms of the related agreements.
A summary of the components of depreciation and amortization expense (dollars in millions and as a percentage of total revenues) is as follows:

| Three Months Ended September 30, |  | $ Change |  | Nine Months Ended September 30, |  | $ Change
| 2024 |  | 2023 |  | 2024 |  | 2023 |
Depreciation expense | $ | 33.4 |  |  | 8.1 | % |  | $ | 27.5 |  |  | 7.8 | % |  | $ | 5.9 |  |  | $ | 97.2 |  |  | 8.6 | % |  | $ | 68.8 |  |  | 7.6 | % |  | $ | 28.4 |
Landfill amortization expense | 11.7 |  |  | 2.8 | % |  | 10.1 |  |  | 2.9 | % |  | 1.6 |  |  | 32.5 |  |  | 2.9 | % |  | 28.9 |  |  | 3.2 | % |  | 3.6 |
Other amortization expense | 14.1 |  |  | 3.5 | % |  | 10.1 |  |  | 2.8 | % |  | 4.0 |  |  | 38.8 |  |  | 3.4 | % |  | 18.4 |  |  | 2.0 | % |  | 20.4 |
| $ | 59.2 |  |  | 14.4 | % |  | $ | 47.7 |  |  | 13.5 | % |  | $ | 11.5 |  |  | $ | 168.5 |  |  | 14.9 | % |  | $ | 116.1 |  |  | 12.8 | % |  | $ | 52.4 |

Depreciation and amortization expense increased in the three and nine months ended September 30, 2024 as compared to the prior year periods, primarily due to (i) acquisitions, including the impact of accelerated amortization schedules of certain intangibles, (ii) investment in property and equipment in our existing operations, and (iii) higher landfill amortization expense related to changes in cost and other assumptions from the prior year periods, more than offsetting lower landfill volumes.
32

Expense from Acquisition Activities
In the three and nine months ended September 30, 2024, we recorded charges of $5.5 million and $18.3 million, respectively, and in the three and nine months ended September 30, 2023, we recorded charges of $3.3 million and $9.8 million, respectively, comprised primarily of legal, consulting, rebranding and other costs associated with the due diligence, acquisition and integration of acquired businesses. The nine months ended September 30, 2024 included a charge for an increase in the reserve against accounts receivable of the businesses acquired in the GFL Acquisition as a result of our inability to pursue collections during the transition services period with the seller, resulting in accounts receivable aged beyond what is typical in our business.
Southbridge Landfill Closure Charge
In the fiscal year ended December 31, 2017, we initiated a plan to cease operations of the Town of Southbridge, Massachusetts landfill (“Southbridge Landfill”) and later closed it in November 2018 when it reached its final capacity. In both the three and nine months ended September 30, 2024, we recorded a non-cash charge of $8.5 million, which is associated with our receipt of a final closure permit (the “Closure Permit”) from the Massachusetts Department of Environmental Protection related to the Southbridge Landfill. Pursuant to the terms of the Closure Permit, we are required to meet certain general permit conditions and certain specific permit conditions (collectively, the “Conditions”), including environmental monitoring, third party inspections, inspection of the final cover, leachate sampling, post-closure monitoring, and other post-closure requirements. We have revised the accrued post-closure liability for the Southbridge Landfill to reflect the estimated cost of satisfying the expanded Conditions as currently specified in the Closure Permit.
In the three and nine months ended September 30, 2023, we recorded charges of $0.1 million and $0.3 million, respectively, associated with legal and other transaction costs associated with various matters as part of the Southbridge Landfill closure.
Legal Settlement
In the nine months ended September 30, 2023, we recorded a charge of $6.2 million due to reaching an agreement at a mediation held on June 20, 2023 with the collective class members of a class action lawsuit relating to certain claims under the Fair Labor Standards Act of 1938 ("FLSA") as well as state wage and hours laws. The settlement agreement, which received court approval, was executed on July 24, 2023 and subsequently paid in the nine months ended September 30, 2024.
Other Expenses
Interest Expense, net
Our interest expense, net increased $4.1 million in the three months ended September 30, 2024 as compared to the prior year period primarily due to the prior year period having higher average cash balances due to the timing of financing activities completed in the nine months ended September 30, 2023 resulting in higher interest income in the three months ended September 30, 2023.
Our interest expense, net increased $16.2 million year-to-date as compared to the prior year period primarily due to: (i) entering into a $430.0 million aggregate principal amount term loan A facility to fund the GFL Acquisition in June 2023, (ii) higher average interest rates year-to-date, and (iii) the issuance of $35.0 million aggregate principal amount of New York State Environmental Facilities Corporation Solid Waste Disposal Revenue Bonds Series 2020R-2 in August 2023.
Loss from Termination of Bridge Financing
In the nine months ended September 30, 2023, we wrote-off the unamortized debt issuance costs and recognized a loss from termination of bridge financing upon the extinguishment of both a secured bridge financing agreement in connection with the GFL Acquisition of $3.7 million, and an unsecured bridge financing agreement in connection with the acquisition of collection, transfer and recycling operations in the greater Albany, New York Area (dba Twin Bridges) (the “Twin Bridges Acquisition”) of $4.5 million.
Provision for Income Taxes
Our provision for income taxes decreased $(1.4) million and decreased $(2.1) million in the three and nine months ended September 30, 2024, respectively, from the prior year periods. The 43.5% effective rate for the nine months ended September 30, 2024 was computed based on the statutory rate of 21% adjusted primarily for state taxes, nondeductible officer compensation, and an increase in the effective state rate due to tax losses in certain states requiring a valuation allowance; partially offset by tax deductible equity compensation in excess of book expense. This effective rate exceeded the 24.4% effective rate for the nine months ended September 30, 2023 primarily due to the current period rate having lower tax deductible equity compensation in excess of book expense and an increase in the effective state rate for tax losses in certain states requiring valuation losses. The substantial increase in the effective tax rate from the nine months ended September 30, 2023 to the nine months ended September 30th, 2024 is due to the permanent items being more impactful as a result of the decrease in pre-tax income for such periods.
33

The projected effective rate excluding discrete items for the fiscal year ending December 31, 2024 is 41.5%, whereas such rate for fiscal year 2023 was 31.0%. The projected effective rate excluding discrete items is computed based on the statutory rate of 21%. The discrete items for the nine months ended September 30, 2024 increased the rate by 2.0%, whereas the discrete items for the nine months ended September 30th, 2023 decreased the rate by (2.9%).
On December 22, 2017, the Tax Cuts and Jobs Act (the “TCJ Act”) was enacted. The TCJ Act significantly changed U.S. corporate income tax laws by, among other things, changing carryforward rules for net operating losses. Our $7.2 million in federal net operating loss carryforwards generated as of the end of 2017 continue to be carried forward for 20 years and are expected to be available to fully offset taxable income earned in 2024 and future years. Federal net operating losses generated after 2017, totaling $150.3 million carried forward to 2024, will be carried forward indefinitely, but generally may only offset up to 80% of taxable income earned in a tax year.
In addition, the TCJ Act added limitations on the deductibility of interest expense and potentially could limit the deductibility of some of our interest expense. Any interest expense limited may be carried forward indefinitely and utilized in later years subject to the interest limitation.
Segment Reporting
Revenues
A summary of revenues by reportable operating segment (in millions) follows:

| Three Months Ended September 30, |  | $ Change |  | Nine Months Ended September 30, |  | $ Change
| 2024 |  | 2023 |  | 2024 |  | 2023 |
Eastern | $ | 110.4 |  |  | $ | 97.5 |  |  | $ | 12.9 |  |  | $ | 310.9 |  |  | $ | 274.7 |  |  | $ | 36.2 |
Western | 150.8 |  |  | 136.0 |  |  | 14.8 |  |  | 426.1 |  |  | 371.3 |  |  | 54.8 |
Mid-Atlantic (1) | 64.0 |  |  | 43.7 |  |  | 20.3 |  |  | 148.0 |  |  | 43.7 |  |  | 104.3 |
Resource Solutions | 86.4 |  |  | 75.5 |  |  | 10.9 |  |  | 244.8 |  |  | 215.3 |  |  | 29.5 |
Total revenues | $ | 411.6 |  |  | $ | 352.7 |  |  | $ | 58.9 |  |  | $ | 1,129.8 |  |  | $ | 905.0 |  |  | $ | 224.8 |

(1)Operations under the Mid-Atlantic region commenced July 1, 2023.
Operating Income (Loss)
A summary of operating income (loss) by operating segment (in millions) follows:

| Three Months Ended September 30, |  | $ Change |  | Nine Months Ended September 30, |  | $ Change
| 2024 |  | 2023 |  | 2024 |  | 2023 |
Eastern | $ | 5.6 |  |  | $ | 11.2 |  |  | $ | (5.6) |  |  | $ | 19.8 |  |  | $ | 20.8 |  |  | $ | (1.0) |
Western | 19.7 |  |  | 20.5 |  |  | (0.8) |  |  | 46.3 |  |  | 51.9 |  |  | (5.6) |
Mid-Atlantic (1) | (5.1) |  |  | (0.7) |  |  | (4.4) |  |  | (17.0) |  |  | (0.7) |  |  | (16.3) |
Resource Solutions | 5.5 |  |  | 4.1 |  |  | 1.4 |  |  | 11.2 |  |  | 2.9 |  |  | 8.3 |
Corporate Entities | (1.3) |  |  | (0.9) |  |  | (0.4) |  |  | (6.1) |  |  | (7.8) |  |  | 1.7 |
Operating income | $ | 24.4 |  |  | $ | 34.2 |  |  | $ | (9.8) |  |  | $ | 54.2 |  |  | $ | 67.1 |  |  | $ | (12.9) |

(1)Operations under the Mid-Atlantic region commenced July 1, 2023.
34

Eastern Region
A summary of the period-to-period changes in solid waste revenues (dollars in millions and as percentage growth of solid waste revenues) follows:

| Period-to-Period Change for the Three Months Ended September 30, 2024 vs. 2023 |  | Period-to-Period Change for the Nine Months Ended September 30, 2024 vs. 2023
| Amount |  | % Growth |  | Amount |  | % Growth
Price | $ | 6.5 |  |  | 6.7 | % |  | $ | 16.6 |  |  | 6.0 | %
Volume | 1.8 |  |  | 1.8 | % |  | 3.9 |  |  | 1.4 | %
Surcharges and other fees | (0.7) |  |  | (0.7) | % |  | (4.2) |  |  | (1.5) | %
Commodity price and volume | 0.1 |  |  | 0.1 | % |  | 0.7 |  |  | 0.3 | %
Acquisitions | 5.2 |  |  | 5.3 | % |  | 19.2 |  |  | 7.0 | %
Solid waste revenues | $ | 12.9 |  |  | 13.2 | % |  | $ | 36.2 |  |  | 13.2 | %

Solid waste revenues increased in the three and nine months ended September 30, 2024 as compared to the prior year periods, primarily driven by (i) the contribution from acquisitions, (ii) favorable collection pricing of $5.6 million, or 8.1% as a percentage of collection operations quarterly, and $14.0 million, or 7.2% as a percentage of collection operations year-to-date, (iii) favorable disposal pricing of $0.9 million, or 3.8% as a percentage of disposal operations quarterly, and $2.6 million, or 3.5% as a percentage of disposal operations year-to-date, and (iv) higher disposal volume of $2.0 million, or 7.7% as a percentage of disposal operations quarterly, and $4.6 million, or 6.2% as a percentage of disposal operations year-to-date; partially offset by (a) lower surcharges and fees both quarterly and year-to-date due to lower energy and environmental fee (“E&E Fee(s)”) revenues associated with our fuel cost recovery program related to lower diesel fuel prices and lower sustainability recycling adjustment fee (“SRA Fee(s)”) revenues from higher recycled commodity prices as compared to the prior year periods, partly counteracted by an increase in the environmental component of the E&E Fee to help offset environmental, regulatory and other operating costs, as well as (b) lower collection volume of $(0.2) million, or (0.2)% as a percentage of collection operations quarterly, and $(0.7) million, or (0.4)% as a percentage of collection operations year-to-date.
See Item 3. “Quantitative and Qualitative Disclosures about Market Risk” included in this Quarterly Report on Form 10-Q for additional information regarding our SRA Fees and the energy component of our E&E Fees.
Operating income decreased in the three and nine months ended September 30, 2024 by $(5.6) million and $(1.0) million, respectively, as compared to the prior year periods. The period-over-period decreases were driven by (i) the charge related to the Southbridge Landfill, (ii) higher costs associated with operating and supporting acquired businesses, (iii) increased depreciation expense due to acquisitions and investment in property and equipment, (iv) general cost inflation, including for disposal, labor, and maintenance costs, (v) higher leachate disposal costs, (vi) higher accretion and landfill amortization expense associated with changes in the timing and cost estimates of our closure, post-closure, and capping obligations, (vii) higher accruals related to insurance claims quarterly and (viii) the allocation of higher corporate costs; partially offset by (a) revenue growth, described above, (b) higher intercompany related operating income, (c) lower costs due to improved routing efficiencies and (d) a charge for the FLSA-related legal settlement recorded during the nine months ended September 30, 2023. See further discussion about the charge related to the Southbridge Landfill above in “Operating Expenses”.
Western Region
A summary of the period-to-period changes in solid waste revenues (dollars in millions and as percentage growth of solid waste revenues) follows:

| Period-to-Period Change for the Three Months Ended September 30, 2024 vs. 2023 |  | Period-to-Period Change for the Nine Months Ended September 30, 2024 vs. 2023
| Amount |  | % Growth |  | Amount |  | % Growth
Price | $ | 7.4 |  |  | 5.5 | % |  | $ | 20.5 |  |  | 5.5 | %
Volume | (3.9) |  |  | (2.9) | % |  | (15.3) |  |  | (4.1) | %
Surcharges and other fees | (0.8) |  |  | (0.6) | % |  | (3.8) |  |  | (1.0) | %
Commodity price and volume | (0.1) |  |  | (0.1) | % |  | 0.9 |  |  | 0.2 | %
Acquisitions | 12.2 |  |  | 8.9 | % |  | 52.5 |  |  | 14.2 | %
Solid waste revenues | $ | 14.8 |  |  | 10.8 | % |  | $ | 54.8 |  |  | 14.8 | %

35

Solid waste revenues increased in the three and nine months ended September 30, 2024 as compared to the prior year periods, primarily driven by (i) the contribution from acquisitions, (ii) favorable collection pricing of $5.9 million, or 6.3% as a percentage of collection operations quarterly, and $15.4 million, or 6.0% as a percentage of collection operations year-to-date, and (iii) favorable disposal pricing of $1.5 million, or 3.9% as a percentage of disposal operations quarterly, and $5.1 million, or 4.8% as a percentage of disposal operations year-to-date; partially offset by (a) lower disposal volume of $(3.2) million, or (8.1)% as a percentage of disposal operations quarterly, and $(11.8) million, or (11.0)% as a percentage of disposal operations year-to-date, mainly driven by lower landfill C&D and special waste volumes, (b) lower collection volume of $(0.7) million, or (0.7)% as a percentage of collection operations quarterly, and $(3.5) million, or (1.4)% as a percentage of collection operations year-to-date, due to customer churn and (c) lower surcharges and fees both quarterly and year-to-date due to lower E&E Fee revenues associated with our fuel cost recovery program related to lower diesel fuel prices and lower SRA Fee revenues from higher recycled commodity prices as compared to the prior year periods, partly counteracted by an increase in the environmental component of the E&E Fee to help offset environmental, regulatory and other operating costs.
See Item 3. “Quantitative and Qualitative Disclosures about Market Risk” included in this Quarterly Report on Form 10-Q for additional information regarding our SRA Fees and the energy component of our E&E Fees.
Operating income declined in the three and nine months ended September 30, 2024 by $(0.8) million and $(5.6) million, respectively, as compared to the prior year periods. The period-over-period declines were due to (i) higher costs associated with operating and supporting acquired businesses, including the impact of accelerated amortization schedules of certain intangibles, (ii) increased depreciation expense due to acquisitions and investment in property and equipment, (iii) general cost inflation, including for disposal, labor, and maintenance costs, (iv) delays in the delivery of fleet vehicles resulting in higher short term rental and vehicle maintenance costs, (v) higher leachate disposal costs, (vi) higher accretion and landfill amortization expense associated with changes in the timing and cost estimates of our closure, post-closure, and capping obligations, (vii) higher accruals related to insurance claims quarterly, (viii) the allocation of higher corporate costs, (ix) higher expense from acquisition activities quarterly, and (x) a gain on resolution of acquisition-related contingent consideration in the nine months ended September 30, 2023 associated with the reversal of a contingency for a transfer station permit expansion that was deemed no longer viable; partially offset by (a) revenue growth, described above, (b) higher intercompany related operating income, (c) a charge for the FLSA-related legal settlement recorded during the nine months ended September 30, 2023, and (d) improved routing efficiencies. See further discussion about the expense from acquisition activities above in “Operating Expenses”.
Mid-Atlantic Region
A summary of the period-to-period changes in solid waste revenues (dollars in millions) follows:

| Period-to-Period Change for the Three Months Ended September 30, 2024 vs. 2023 |  |  | Period-to-Period Change for the Nine Months Ended September 30, 2024 vs. 2023 |  |
| Amount |  | % Growth |  |  | Amount |  |
Price | $ | 1.2 |  |  | 2.8 | % |  |  | $ | 1.2 |  |  |
Volume | (0.7) |  |  | (1.7) | % |  |  | (0.7) |  |  |
Surcharges and other fees | 1.0 |  |  | 2.4 | % |  |  | 6.7 |  |  |
Acquisitions | 18.8 |  |  | 42.9 | % |  |  | 97.1 |  |  |
Solid waste revenues (1) | $ | 20.3 |  |  | 46.4 | % |  |  | $ | 104.3 |  |  |

(1)Our Mid-Atlantic region operating segment, consisting of collection and transfer station operations, commenced on July 1, 2023 following the GFL Acquisition.
The operating losses of $(5.1) million and $(17.0) million in the three and nine months ended September 30, 2024, respectively, were impacted by $3.2 million quarterly and $12.3 million year-to-date of expense from acquisition activities, comprised primarily of integration costs, including rebranding efforts and a charge in the nine months ended September 30, 2024 for an increase in the reserve against accounts receivable of the businesses acquired in the GFL Acquisition as a result of our inability to pursue collections during the transition services period with the seller, resulting in accounts receivable aged beyond what is typical in our business; as well as the impact of accelerated amortization schedules of certain acquired intangibles and an increased provision for expected credit losses quarterly due to the aging of receivables.
The operating losses of $(0.7) million in the three and nine months ended September 30, 2023 were driven primarily by solid waste collection services, as revenues, inclusive of intercompany revenues, more than offset by $30.0 million cost of operations, $3.0 million of general and administration expense, $10.2 million of depreciation and amortization expense and $1.5 million of expense from acquisition activities, comprised primarily of legal, consulting and integration costs pertaining to the GFL Acquisition. See further discussion about the expense from acquisition activities above in “Operating Expenses”.
36

Resource Solutions
A summary of the period-to-period changes in solid waste revenues (dollars in millions and as percentage growth of solid waste revenues) follows:

| Period-to-Period Change for the Three Months Ended September 30, 2024 vs. 2023 |  | Period-to-Period Change for the Nine Months Ended September 30, 2024 vs. 2023
| Amount |  | % Growth |  | Amount |  | % Growth
Price | $ | 2.5 |  |  | 3.2 | % |  | $ | 11.8 |  |  | 5.5 | %
Volume | 7.3 |  |  | 9.7 | % |  | 10.7 |  |  | 5.0 | %
Surcharges and other fees | (0.3) |  |  | (0.2) | % |  | (0.6) |  |  | (0.3) | %
Acquisitions | 1.4 |  |  | 1.8 | % |  | 7.6 |  |  | 3.5 | %
Resource Solutions revenues | $ | 10.9 |  |  | 14.5 | % |  | $ | 29.5 |  |  | 13.7 | %

Resource Solutions revenues increased in the three and nine months ended September 30, 2024 as compared to the prior year periods, due to the impact from (i) higher recycled commodity pricing of $7.1 million, or 31.2% as a percentage of recycling operations quarterly, and $16.8 million, or 27.7% as a percentage of recycling operations year-to-date, (ii) the contribution from acquisitions, (iii) National Accounts business pricing growth of $0.5 million, or 1.1% as a percentage of National Accounts operations quarterly, and $4.9 million, or 3.5% as a percentage of National Accounts operations year-to-date, (iv) higher recycling volumes of $3.5 million, or 15.5% as a percentage of recycling operations quarterly, and $7.6 million, or 12.7% as a percentage of recycling operations year-to-date, (v) higher other processing price of $0.3 million, or 6.4% as a percentage of other processing operations quarterly, and $1.0 million, or 6.5% as a percentage of other processing operations year-to-date (vi) higher National Accounts business volumes of $3.4 million, or 7.2% as a percentage of National Accounts operations quarterly, and $3.2 million, or 2.3% as a percentage of National Accounts operations year-to-date, (vii) higher other processing volumes of $0.4 million, or 7.0% as a percentage of other processing operations quarterly, and lower other processing volumes of $(0.1) million, or (0.9%) as a percentage of other processing operations year-to-date, (viii) lower tipping fees primarily related to contract structures that work to offset recycled commodity price movements of $(5.4) million, or (24.1)% as a percentage of recycling operations quarterly, and $(10.9) million, or (18.0)% as a percentage of recycling operations year-to-date, and (ix) lower surcharges and other fees associated with our National Accounts business.
Operating income increased in the three and nine months ended September 30, 2024 by $1.4 million and $8.3 million, respectively, as compared to the prior year periods. The period-over-period increases were due to (i) revenue growth, described above, and (ii) lower direct costs associated with hauling and transportation year-to-date relating to municipal biosolid volumes in our National Accounts business; partially offset by (a) higher costs associated with operating and supporting acquired businesses, including the impact of accelerated amortization schedules of certain intangibles, (b) increased depreciation expense due to acquisitions and investment in property and equipment, (c) the allocation of higher corporate costs, (d) general cost inflation, including for disposal, labor, and maintenance costs, and (e) lower intercompany related operating income.
Corporate Entities
Corporate Entities operating loss reflects those costs not allocated to our reportable operating segments, which consists of depreciation and amortization expense and certain expense from acquisition activities. Operating deficit increased $(0.4) million and decreased $1.7 million in the three and nine months ended September 30, 2024, respectively, as compared to the prior year periods, driven primarily by the timing of acquisition activities. See further discussion about the expense from acquisition activities above in “Operating Expenses”.
Liquidity and Capital Resources
We continually monitor our actual and forecasted cash flows, our liquidity, and our capital requirements in order to properly manage our liquidity needs as we move forward based on the capital intensive nature of our business and our growth acquisition strategy. As of September 30, 2024, we had $678.5 million of available and undrawn capacity under our $700.0 million revolving credit facility (“Revolving Credit Facility”) and $519.0 million of cash and cash equivalents to help meet our short-term and long-term liquidity needs. We expect existing cash and cash equivalents combined with available cash flows from operations and financing activities to continue to be sufficient to fund our operating activities and cash commitments for investing and financing activities for at least the next 12 months and thereafter for the foreseeable future.
37

Our known current and long-term uses of cash include, among other possible demands: (i) acquisitions, (ii) capital expenditures and leases, (iii) repayments to service debt and other long-term obligations, and (iv) payments for final capping, closure and post-closure asset retirement obligations and environmental remediation liabilities. We have made in the past, and plan to make in the future, acquisitions to expand service areas, densify existing operations, and grow services for our customers. Future acquisitions may include larger acquisitions that may be inside or outside of our existing market, which could require additional financing either in the form of debt or equity.
A summary of cash and cash equivalents, restricted assets and debt balances, excluding any debt issuance costs, (in millions) follows:

| September 30, 2024 |  | December 31, 2023 |  | $ Change
Cash and cash equivalents | $ | 519.0 |  |  | $ | 220.9 |  |  | $ | 298.1 |
Current assets, excluding cash and cash equivalents | $ | 224.1 |  |  | $ | 205.4 |  |  | $ | 18.7 |
Restricted assets | $ | 2.4 |  |  | $ | 2.2 |  |  | $ | 0.2 |
Total current liabilities: |  |  |  |  |
Current liabilities, excluding current maturities of debt | $ | 252.9 |  |  | $ | 243.1 |  |  | $ | 9.8 |
Current maturities of debt | 38.4 |  |  | 35.8 |  |  | 2.6 |
Total current liabilities | $ | 291.3 |  |  | $ | 278.9 |  |  | $ | 12.4 |
Debt, less current portion, excluding unamortized debt issuance costs | $ | 1,061.3 |  |  | $ | 1,018.8 |  |  | $ | 42.5 |

Current assets, excluding cash and cash equivalents, increased $18.7 million and current liabilities, excluding current maturities of debt, increased $9.8 in the nine months ended September 30, 2024, resulting in a $8.9 million increase in working capital, net (defined as current assets, excluding cash and cash equivalents, minus current liabilities, excluding current maturities of debt), from $(37.7) million as of December 31, 2023 to $(28.8) million as of September 30, 2024. We strive to minimize net working capital by driving shorter days sales outstanding as compared to days payable outstanding.
Summary of Cash Flow Activity
Cash and cash equivalents increased $298.1 million in the nine months ended September 30, 2024. A summary of cash flows (in millions) follows:

| Nine Months Ended September 30, |  | $ Change
| 2024 |  | 2023 |
Net cash provided by operating activities | $ | 171.6 |  |  | $ | 157.8 |  |  | $ | 13.8 |
Net cash used in investing activities | $ | (384.6) |  |  | $ | (937.2) |  |  | $ | 552.6 |
Net cash provided by financing activities | $ | 511.1 |  |  | $ | 930.0 |  |  | $ | (418.9) |

38

Cash flows from operating activities.
A summary of operating cash flows (in millions) follows:

| Nine Months Ended September 30,
| 2024 |  | 2023
Net income | $ | 8.7 |  |  | $ | 27.2 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 168.5 |  |  | 116.1 |
Interest accretion on landfill and environmental remediation liabilities | 8.8 |  |  | 7.5 |
Amortization of debt issuance costs | 2.2 |  |  | 2.2 |
Stock-based compensation | 7.4 |  |  | 6.7 |
Operating lease right-of-use assets expense | 13.1 |  |  | 11.0 |
Disposition of assets, other items and charges, net | 12.5 |  |  | 0.3 |
Loss from termination of bridge financing | — |  |  | 8.2 |
Deferred income taxes | 3.4 |  |  | 5.2 |
| 224.6 |  |  | 184.4 |
Changes in assets and liabilities, net | (53.0) |  |  | (26.6) |
Net cash provided by operating activities | $ | 171.6 |  |  | $ | 157.8 |

A summary of the most significant items affecting the change in our operating cash flows follows:
Net cash provided by operating activities increased $13.8 million in the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023. This was the result of revenue growth driven by acquisition activity, partially offset by higher interest expense and an increase in the unfavorable cash flow impact associated with the changes in our assets and liabilities, net of effects of acquisitions and divestitures. For discussion of our operational performance in the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023, see “Results of Operations” above.
Cash flows from investing activities.
A summary of investing cash flows (in millions) follows:

| Nine Months Ended September 30,
| 2024 |  | 2023
Acquisitions, net of cash acquired | $ | (259.2) |  |  | $ | (847.8) |
Additions to property and equipment | (126.4) |  |  | (90.4) |
Additions to intangible assets | (0.3) |  |  | — |
Proceeds from sale of property and equipment | 1.1 |  |  | 1.0 |
Proceeds from property insurance settlement | 0.2 |  |  | — |
Net cash used in investing activities | $ | (384.6) |  |  | $ | (937.2) |

A summary of the most significant items affecting the change in our investing cash flows follows:
Acquisitions, net of cash acquired. In the nine months ended September 30, 2024, we acquired five businesses for total consideration of $(260.2) million, including $(261.2) million in cash, made $(0.9) million in payments on businesses previously acquired and received a $2.9 million working capital settlement on a business previously acquired, as compared to the nine months ended September 30, 2023 during which we acquired five businesses, including the GFL Acquisition, for total consideration of $845.1 million, including $842.6 million in cash and paid $5.2 million in holdback payments on businesses previously acquired.
Capital expenditures. Capital expenditures were $36.0 million higher in the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023, primarily due to higher capital spend driven by (i) acquisition activity, (ii) spend related to the retrofitting of our Willimantic, Connecticut materials recovery facility, (iii) landfill development and (iv) the timing of spend and increased investment in our fleet.
39

Cash flows from financing activities.
A summary of financing cash flows (in millions) follows:

| Nine Months Ended September 30,
| 2024 |  | 2023
Proceeds from long-term borrowings | $ | 801.8 |  |  | $ | 465.0 |
Principal payments on debt | (780.9) |  |  | (18.5) |
Payments of debt issuance costs | (6.4) |  |  | (12.8) |
Proceeds from the exercise of share based awards | — |  |  | 0.1 |
Proceeds from the public offering of Class A common stock | 496.6 |  |  | 496.2 |
Net cash provided by financing activities | $ | 511.1 |  |  | $ | 930.0 |

Debt activity. Net cash associated with debt activity decreased $(425.6) million in the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023. In September 2024, we entered into a second amended and restated credit agreement (“Credit Agreement”), which amended and restated in its entirety our amended and restated credit agreement (“Existing Credit Agreement”). The Credit Agreement provides for a $800.0 million aggregate principal amount term loan A facility (“Term Loan Facility”) and a $700.0 million Revolving Credit Facility, with a $155.0 million sublimit for letters of credit (collectively, the "Credit Facility"). The proceeds of the Credit Facility refinanced our existing $769.3 million aggregate principal amount term loan A facilities under the Existing Credit Agreement, including the $430.0 million aggregate principal amount 2023 term loan A facility we entered into in June 2023.
Payment of debt issuance costs. We paid $6.4 million of debt issuance costs in the nine months ended September 30, 2024 primarily related to refinancing activities associated with entering into the Credit Agreement as compared to $12.8 million in the nine months ended September 30, 2023, which included $8.7 million related to bridge financing activities associated with the GFL Acquisition and the Twin Bridges Acquisition.
Proceeds from the public offering of Class A Common Stock. In the nine months ended September 30, 2024, we completed a public offering of 5.2 million shares of our Class A common stock at a public offering price of $100.00 per share. After deducting stock issuance costs received as of September 30, 2024, including underwriting discounts, commissions and offering expenses, the offering resulted in net proceeds of $496.6 million. The net proceeds from this offering were used to repay borrowings under our Revolving Credit Facility and are further available to fund acquisition activity and for general corporate purposes.
In the nine months ended September 30, 2023, we completed a public offering of 6.1 million shares of our Class A common stock at a public offering price of $85.50 per share. After deducting stock issuance costs received as of September 30, 2023, including underwriting discounts, commissions and offering expenses, the offering resulted in net proceeds of $496.2 million. The net proceeds from this offering were and are to be used to fund acquisition activity, including the GFL Acquisition and the Twin Bridges Acquisition, to pay certain costs associated with acquisition activities, and to repay borrowings and/or debt securities.
Outstanding Long-Term Debt
Credit Facility
As of September 30, 2024, we are party to the Credit Agreement, which provides for a $800.0 million aggregate principal amount Term Loan Facility and a $700.0 million Revolving Credit Facility, with a $155.0 million sublimit for letters of credit. We have the right to request, at our discretion, an increase in the amount of loans under the Credit Facility by an aggregate amount of $200.0 million, subject to further increase based on the terms and conditions set forth in the Credit Agreement. The Credit Facility has a 5-year term that matures in September 2029. The Credit Facility shall bear interest, at our election, at term secured overnight financing rate (“Term SOFR”) or at a base rate, in each case plus or minus any sustainable rate adjustment of up to positive or negative 4.0 basis points per annum, plus an applicable interest rate margin based upon our consolidated net leverage ratio as follows:
40

|  | Term SOFR Loans |  | Base Rate Loans
Credit Facility |  | 1.300% to 2.175% |  | 0.300% to 1.175%

A commitment fee will be charged on undrawn amounts of our Revolving Credit Facility based upon our consolidated net leverage ratio in the range of 0.20% to 0.40% per annum, plus a sustainability adjustment of up to positive or negative 1.0 basis point per annum. The Amended and Restated Credit Agreement provides that Term SOFR is subject to a zero percent floor. We are also required to pay a fronting fee for each letter of credit of 0.25% per annum. Interest under the Credit Agreement is subject to increase by 2.00% per annum during the continuance of a payment default and may be subject to increase by 2.00% per annum during the continuance of any other event of default. The Credit Facility is guaranteed jointly and severally, fully and unconditionally by all of our significant wholly-owned subsidiaries and secured by substantially all of our assets. As of September 30, 2024, further advances were available under the Revolving Credit Facility in the amount of $678.5 million. The available amount is net of outstanding irrevocable letters of credit totaling $21.5 million, and as of September 30, 2024 no amount had been drawn.
The Credit Agreement requires us to maintain a minimum interest coverage ratio and a maximum consolidated net leverage ratio, to be measured at the end of each fiscal quarter. As of September 30, 2024, we were in compliance with all financial covenants contained in the Credit Agreement as follows (in millions):

Credit Facility Covenant |  | Twelve Months Ended September 30, 2024 |  | Covenant Requirements at September 30, 2024
Maximum consolidated net leverage ratio (1) |  | 2.57 |  |  | 4.00
Minimum interest coverage ratio |  | 6.40 |  | 3.00

(1)The maximum consolidated net leverage ratio is calculated as consolidated funded debt, net of up to $100.0 million of unencumbered cash and cash equivalents (calculated at $999.7 million as of September 30, 2024, or $1,099.7 million of consolidated funded debt less $100.0 million total of unencumbered cash and cash equivalents), divided by consolidated EBITDA. Consolidated EBITDA is based on operating results for the twelve months preceding the measurement date of September 30, 2024. Consolidated funded debt, net and consolidated EBITDA as defined by the Credit Agreement (“Consolidated EBITDA”) are non-GAAP financial measures that should not be considered an alternative to any measure of financial performance calculated and presented in accordance with generally accepted accounting principles in the United States. A reconciliation of net cash provided by operating activities to Consolidated EBITDA is as follows (in millions):

| Twelve Months Ended September 30, 2024
Net cash provided by operating activities | $ | 246.9 |
Changes in assets and liabilities, net of effects of acquisitions and divestitures | 46.1 |
Stock based compensation | (9.8) |
Operating lease right-of-use assets expense | (7.8) |
Landfill capping charge - veneer failure | (3.0) |
Disposition of assets, other items and charges, net | (12.9) |
Interest expense, less amortization of debt issuance costs | 59.9 |
Provision for income taxes, net of deferred income taxes | 3.9 |
Adjustments as allowed by the Credit Agreement (1) | 65.8 |
Consolidated EBITDA | $ | 389.1 |

(1)Adjustments as allowed by the Credit Agreement includes the estimated annual pro-forma impact of acquisitions on consolidated EBITDA.
In addition to these financial covenants, the Credit Agreement also contains a number of important customary affirmative and negative covenants which restrict, among other things, our ability to sell assets, incur additional debt, create liens, make investments, and pay dividends. As of September 30, 2024, we were in compliance with the covenants contained in the Credit Agreement. We do not believe that these restrictions impact our ability to meet future liquidity needs.
41

An event of default under any of our debt agreements could permit some of our lenders, including the lenders under the Credit Facility, to declare all amounts borrowed from them to be immediately due and payable, together with accrued and unpaid interest, or, in the case of the Credit Facility, terminate the commitment to make further credit extensions thereunder, which could, in turn, trigger cross-defaults under other debt obligations. If we were unable to repay debt to our lenders or were otherwise in default under any provision governing our outstanding debt obligations, our secured lenders could proceed against us and against the collateral securing that debt.
Based on the seasonality of our business, operating results in the late fall, winter and early spring months are generally lower than the remainder of our fiscal year. Given the cash flow impact that this seasonality, the capital intensive nature of our business and the timing of debt payments has on our business, we typically incur higher debt borrowings in order to meet our liquidity needs during these times. Consequently, our availability and performance against our financial covenants may tighten during these times as well.
Tax-Exempt Financings and Other Debt
As of September 30, 2024, we had outstanding $232.0 million aggregate principal amount of tax exempt bonds; $66.2 million aggregate principal amount of finance leases; and $1.5 million aggregate principal amount of notes payable.
See Note 7, Debt to our consolidated financial statements included in Part I. Item 1. “Financial Statements” of this Quarterly Report on Form 10-Q for further disclosure regarding debt.
Inflation
Inflationary increases in costs, including current cost inflation associated primarily with labor, certain other cost categories and capital items, have materially affected, and may continue to materially affect, our operating margins and cash flows. While inflation negatively impacted operating results and margins during the three and nine months ended September 30, 2024 and 2023, we believe that our flexible pricing structures and cost recovery fees are allowing us to recover and will continue to allow us to recover certain inflationary costs from our customer base. Consistent with industry practice, most of our contracts and service agreements provide for a pass-through of certain costs to our customers, including increases in landfill tipping fees and in most cases fuel costs, intended to mitigate the impact of inflation on our operating results. We have also implemented a number of operating efficiency programs that seek to improve productivity and reduce our service costs, and our fuel cost recovery programs, primarily the energy component of our E&E Fee, which is designed to recover escalating fuel price fluctuations above a periodically reset floor. Despite these programs, competitive factors may require us to absorb at least a portion of these cost increases. Additionally, management’s estimates associated with inflation have had, and will continue to have, an impact on our accounting for landfill and environmental remediation liabilities.
See Item 3. “Quantitative and Qualitative Disclosures about Market Risk” included in this Quarterly Report on Form 10-Q for additional information regarding our fuel cost recovery programs.
Regional Economic Conditions
Our business is primarily located in the eastern United States. Therefore, our business, financial condition and results of operations are susceptible to downturns in the general economy in these geographic regions and other factors affecting these regions, such as state regulations, labor availability and severe weather conditions. We are unable to forecast or determine the timing and/or the future impact of a sustained economic slowdown or other factors affecting these regions.
Seasonality and Severe Weather
Our revenues historically have been higher in the late spring, summer and early fall months. This seasonality reflects lower volumes of waste in the late fall, winter and early spring months because the volume of waste relating to C&D activities decreases substantially during the winter months in the northeastern United States.
Because certain of our operating and fixed costs remain constant throughout the fiscal year, operating income is therefore impacted by a similar seasonality. Our operations can be adversely affected by periods of inclement or severe weather, which may increase with the physical impacts of climate change and could increase our operating costs associated with the collection and disposal of waste, delay the collection and disposal of waste, reduce the volume of waste delivered to our disposal sites, increase the volume of waste collected under our existing contracts (without corresponding compensation), decrease the throughput and operating efficiency of our materials recycling facilities, or delay construction or expansion of our landfill sites and other facilities. Our operations can also be favorably affected by severe weather, which could increase the volume of waste in situations where we are able to charge for our additional services provided.
Our processing line-of-business in the Resource Solutions operating segment typically experiences increased volumes of fibers from November through mid-January due to increased retail activity during the holiday season.
42

Critical Accounting Estimates and Assumptions
Our financial statements have been prepared in accordance with generally accepted accounting principles in the United States and necessarily include certain estimates and judgments made by management. On an on-going basis, management evaluates its estimates and judgments which are based on historical experience and on various other factors that are believed to be reasonable under the circumstances. The results of their evaluation form the basis for making judgments about the carrying values of assets and liabilities. Actual results may differ from these estimates under different assumptions and circumstances. Our critical accounting estimates are more fully discussed in Item 7. “Management's Discussion and Analysis of Financial Condition and Results of Operations” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023.
New Accounting Pronouncements
For a description of the new accounting standards that may affect us, see Note 2, Accounting Changes to our consolidated financial statements included under Part I. Item 1. “Financial Statements” of this Quarterly Report on Form 10-Q.
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
In the normal course of business we are exposed to market risks, including changes in diesel fuel prices, interest rates and certain commodity prices. We have a variety of strategies to mitigate these market risks, including those discussed below.
Fuel Price Risk
The price and supply of fuel are unpredictable and fluctuate based on events beyond our control, including among others, geopolitical developments, supply and demand for oil and gas, actions by the Organization of the Petroleum Exporting Countries and other oil and gas producers, war and unrest in oil producing countries and regional production patterns. Fuel is needed to run our fleet of trucks, equipment and other aspects of our operations, and price escalations for fuel increase our operating expenses. We have fuel cost recovery programs, primarily the energy component of our energy and environmental fee (“E&E Fee(s)”), which is designed to offset some or all of the impact of diesel fuel price increases above a periodically reset floor and contemplates a minimum customer participation level to cover changes in our fuel costs. The energy component of the E&E Fee floats on a monthly basis based upon changes in a published diesel fuel price index and is tied to a price escalation index with a look-back provision, which results in a timing lag in our ability to match the changes in the fuel cost component of the fee to diesel fuel price fluctuations during periods of rapid price changes. In certain circumstances, a substantial rise or drop in fuel costs could materially affect our revenue and costs of operations. However, a substantial rise or drop in fuel costs should not have a material impact on our results of operations. In addition, we are susceptible to increases in fuel surcharges from our vendors.
Based on our consumption levels in the last twelve months ended September 30, 2024, combined with our expected fuel consumption related to recently closed acquisitions, and after considering physically settled fuel contracts, we believe a $0.40 cent per gallon change in the price of diesel fuel would change our direct fuel costs by approximately $6.3 million per year. Offsetting these changes in direct fuel expense would be changes in the energy component of the E&E Fees charged to our customers. Based on participation rates as of September 30, 2024 and considering recently closed acquisitions, we believe a $0.40 cent per gallon change in the price of diesel fuel would change the energy component of the E&E Fee by approximately $5.6 million per year. In addition to direct fuel costs related to our consumption levels, we are also subject to fuel surcharge expense from third party transportation providers. Other operational costs and capital expenditures may also be impacted by fuel prices.
In the three and nine months ended September 30, 2024, our fuel costs were $14.4 million, or 3.5% of revenue, and $41.2 million, or 3.7% of revenue, respectively, as compared to $13.6 million, or 3.9% of revenue, and $34.0 million, or 3.8% of revenue, in the three and nine months ended September 30, 2023, respectively.
43

Commodity Price Risk
We market a variety of materials, including fibers such as old corrugated cardboard and old newsprint, plastics, glass, ferrous and aluminum metals. We may use a number of strategies to mitigate impacts from these recycled material commodity price fluctuations including: (1) charging collection customers a floating sustainability recycling adjustment fee to reduce recycling commodity risks; (2) providing in-bound material recovery facilities (“MRF”) customers with a revenue share or indexed materials purchases in higher commodity price markets, or charging these same customers a processing cost or tipping fee per ton in lower commodity price markets; (3) selling recycled commodities to out-bound MRF customers through floor price or fixed price agreements; or (4) entering into fixed price contracts or hedges that mitigate the variability in cash flows generated from the sales of recycled paper at floating prices. Although we have introduced these risk mitigation programs to help offset volatility in commodity prices and to offset higher labor or capital costs to meet more stringent contamination standards, we cannot provide assurance that we can use these programs with our customers in all circumstances or that they will mitigate these risks in an evolving recycling environment. We do not use financial instruments for trading purposes and are not a party to any leveraged derivatives. As of September 30, 2024, we were not party to any commodity hedging agreements.
The impact of commodity price risk as of September 30, 2024 does not differ materially from that discussed in Item 7A. “Quantitative and Qualitative Disclosures About Market Risk” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023.
Interest Rate Risk
Our strategy to reduce exposure to interest rate risk involves entering into interest rate derivative agreements to hedge against adverse movements in interest rates related to the variable rate portion of our long-term debt. We have designated these derivative instruments as highly effective cash flow hedges, and therefore the change in fair value is recorded in our stockholders’ equity as a component of accumulated other comprehensive income and included in interest expense at the same time as interest expense is affected by the hedged transactions. Differences paid or received over the life of the agreements are recorded as additions to or reductions of interest expense on the underlying debt and included in cash flows from operating activities.
The impact of interest rate risk as of September 30, 2024 does not differ materially from that discussed in Item 7A. “Quantitative and Qualitative Disclosures About Market Risk” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023.
ITEM 4. CONTROLS AND PROCEDURES
Evaluation of disclosure controls and procedures. Our management, with the participation of our chief executive officer and chief financial officer, evaluated the effectiveness of our disclosure controls and procedures as of September 30, 2024. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (“Exchange Act”), means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Based on the evaluation of our disclosure controls and procedures as of September 30, 2024, our chief executive officer and chief financial officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.
Changes in internal controls over financial reporting. No change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the three months ended September 30, 2024 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.
44

PART II.
ITEM 1. LEGAL PROCEEDINGS
The information required by this Item is provided in Note 8, Commitments and Contingencies to our consolidated financial statements included in Part I. Item 1. “Financial Statements” of this Quarterly Report on Form 10-Q.
Legal Proceedings over Certain Environmental Matters Involving Governmental Authorities with Possible Sanctions of $1,000,000 or More
Item 103 of the Securities and Exchange Commission's Regulation S-K requires disclosure of certain environmental matters when a governmental authority is a party to the proceedings and the proceedings involve potential monetary sanctions unless we reasonably believe the monetary sanctions, exclusive of interest and costs, will not equal or exceed a specified threshold which we determine is reasonably designed to result in disclosure of any such proceeding that is material to our business or financial condition. Pursuant to Item 103, we have determined such disclosure threshold to be $1,000,000. Information relating to environmental proceedings is provided in Note 8, Commitments and Contingencies to our consolidated financial statements included in Part I. Item 1. “Financial Statements” of this Quarterly Report on Form 10-Q.
45

ITEM 1A. RISK FACTORS
Our business is subject to a number of risks, including those identified in Item 1A. “Risk Factors” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023, and the updated risk factor set forth below, that could have a material effect on our business, results of operations, financial condition and/or liquidity and that could cause our operating results to vary significantly from period to period. We may disclose additional changes to our risk factors or disclose additional factors from time to time in our future filings with the Securities and Exchange Commission.
The increasing focus on PFAS and other emerging contaminants may lead to increased compliance and remediation costs and litigation risks, which could adversely impact our financial condition and results of operations.
The regulatory environment for per - and polyfluoroalkyl substances (commonly referred to as “ PFAS”) is rapidly evolving, with increasing demands for enhanced environmental monitoring programs and advanced treatment technologies to mitigate PFAS contamination. Risks to the Company related to PFAS include regulatory risks, including the recent designation by the United States Environmental Protection Agency (“EPA”) of PFAS as hazardous substances, which could create Superfund liabilities under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980, as amended for all downstream recipients of PFAS, including passive receivers such as our landfills and transporters of biosolids, the establishment of federal and state drinking water standards and surface water criteria which set low thresholds for impacts to drinking water and surface water, the risk that states in which we operate will require stringent monitoring of PFAS at our landfills, the risk of material increases in landfill leachate treatment costs due to mandatory pre-treatment or otherwise, the risk that existing remedial sites will become more complex and that closed landfills will be under enhanced regulatory scrutiny, the risk that biosolids management will be impacted by restrictions on end uses and the risk that that pre-existing land application sites will be determined to contain PFAS. Any such liability is likely to be uninsurable, with no coverage likely under our pollution or product liability policies.
ITEM 5. OTHER INFORMATION
None of our directors or officers (as defined in Rule 16a-1(f) under the Securities Exchange Act of 1934, as amended) adopted or terminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement (as defined in Item 408(c) of Regulation S-K) during the three months ended September 30, 2024.
46

ITEM 6. EXHIBITS

Exhibit No. |  | Description |  |
10.1+ |  | Second Amended and Restated Credit Agreement, dated as of September 27, 2024, among Casella Waste Systems, Inc., the subsidiaries of Casella Waste Systems, Inc. identified therein, Bank of America, N.A., as administrative agent, BofA Securities, Inc. and TD Securities (USA) LLC, as Sustainability Coordinators, the other letter of credit issuers and arrangers party thereto (incorporated herein by reference to Exhibit 10.1 to the Current Report on Form 8-K as filed on September 30, 2024 (File No. 000-23211)). |  |
31.1 + |  | Certification of Principal Executive Officer, pursuant to Section 302 of the Sarbanes – Oxley Act of 2002. |  |
31.2 + |  | Certification of Principal Financial Officer, pursuant to Section 302 of the Sarbanes – Oxley Act of 2002. |  |
32.1 ++ |  | Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes- Oxley Act of 2002. |  |
32.2 ++ |  | Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes- Oxley Act of 2002. |  |
101.INS |  | The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document. |  |
101.SCH |  | Inline XBRL Taxonomy Extension Schema Document.* |  |
101.CAL |  | Inline XBRL Taxonomy Calculation Linkbase Document.* |  |
101.LAB |  | Inline XBRL Taxonomy Label Linkbase Document.* |  |
101.PRE |  | Inline XBRL Taxonomy Presentation Linkbase Document.* |  |
101.DEF |  | Inline XBRL Taxonomy Extension Definition Linkbase Document.* |  |
104 |  | Cover Page Interactive Data File (formatted as inline XBRL with applicable taxonomy extension information contained in Exhibits 101.) |  |

* |  | Submitted Electronically Herewith. Attached as Exhibit 101 to this report are the following formatted in inline XBRL (Extensible Business Reporting Language): (i) Consolidated Balance Sheets as of September 30, 2024 and December 31, 2023, (ii) Consolidated Statements of Operations for the three and nine months ended September 30, 2024 and 2023, (iii) Consolidated Statements of Comprehensive (Loss) Income for the three and nine months ended September 30, 2024 and 2023, (iv) Consolidated Statements of Stockholders’ Equity for the three and nine months ended September 30, 2024 and 2023, (v) Consolidated Statements of Cash Flows for the nine months ended September 30, 2024 and 2023, and (vi) Notes to Consolidated Financial Statements.
+ |  | Filed Herewith
++ |  | Furnished Herewith

47

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

| Casella Waste Systems, Inc. |
Date: October 31, 2024 | By: /s/ Kevin Drohan |
| Kevin Drohan |
| Vice President and Chief Accounting Officer |
| (Principal Accounting Officer) |
Date: October 31, 2024 | By: /s/ Bradford J. Helgeson |
| Bradford J. Helgeson |
| Executive Vice President and Chief Financial Officer |
| (Principal Financial Officer) |

48