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  <xs:element id="awr_AccountReceivablefromUSGovernmentNetNoncurrent" abstract="false" name="AccountReceivablefromUSGovernmentNetNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_IncreaseDecreaseInRelatedPartyReceivablePayableCurrent" abstract="false" name="IncreaseDecreaseInRelatedPartyReceivablePayableCurrent" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_ScheduleShowingReconciliationofTotalUtilityPlanttoTotalConsolidatedAssetsTableTextBlock" abstract="false" name="ScheduleShowingReconciliationofTotalUtilityPlanttoTotalConsolidatedAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="awr_DebtInstrumentRedemptionPremiumAsPercentageOfParValueAfterSpecifiedPeriod" abstract="false" name="DebtInstrumentRedemptionPremiumAsPercentageOfParValueAfterSpecifiedPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="awr_ElectricServiceUtilityOperationsMember" abstract="true" name="ElectricServiceUtilityOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_DividendsEquivalentRightsOnShareBasedCompensationNetOfTax" abstract="false" name="DividendsEquivalentRightsOnShareBasedCompensationNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="awr_RegulatoryAssetsAndLiabilitiesLineItems" abstract="true" name="RegulatoryAssetsAndLiabilitiesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="awr_DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax" abstract="false" name="DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="awr_AssetsOtherThanPropertyPlantAndEquipmentNet" abstract="false" name="AssetsOtherThanPropertyPlantAndEquipmentNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_AccountsReceivableFromUSGovernmentNetCurrent" abstract="false" name="AccountsReceivableFromUSGovernmentNetCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_FlowThroughTaxesNetMember" abstract="true" name="FlowThroughTaxesNetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_AdvancesForConstruction" abstract="false" name="AdvancesForConstruction" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_RelatedPartyTransactionsAndFinancingActivitiesPolicyTextBlock" abstract="false" name="RelatedPartyTransactionsAndFinancingActivitiesPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="awr_ScheduleOfRegulatoryAssetsLiabilitiesTableTextBlock" abstract="false" name="ScheduleOfRegulatoryAssetsLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="awr_AllowanceforDoubtfulAccountsAbstract" abstract="true" name="AllowanceforDoubtfulAccountsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="awr_DefinedBenefitPlanNetPeriodicBenefitCostBeforeAllocationToOverheadPool" abstract="false" name="DefinedBenefitPlanNetPeriodicBenefitCostBeforeAllocationToOverheadPool" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_GoldenStateWaterCompanyAndBearValleyElectricServiceIncMember" abstract="true" name="GoldenStateWaterCompanyAndBearValleyElectricServiceIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_AllowanceForDoubtfulAccountsReceivableOtherCurrent" abstract="false" name="AllowanceForDoubtfulAccountsReceivableOtherCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_WastewaterMember" abstract="true" name="WastewaterMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
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  <xs:element id="awr_IncreaseDecreaseReceivableFromGovernment" abstract="false" name="IncreaseDecreaseReceivableFromGovernment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_BearValleyElectricServiceIncMember" abstract="true" name="BearValleyElectricServiceIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_PeriodOfFixedPriceContractsToOperateAndMaintainWaterSystemsAtVariousMilitaryBases" abstract="false" name="PeriodOfFixedPriceContractsToOperateAndMaintainWaterSystemsAtVariousMilitaryBases" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="awr_UndistributedEarningsAllocatedToCommonStock" abstract="false" name="UndistributedEarningsAllocatedToCommonStock" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" abstract="true" name="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="awr_SensitivityAnalysisForDefinedBenefitPlanBenefitObligationImpactOf65BasisPointIncreaseInDiscountRateAmount" abstract="false" name="SensitivityAnalysisForDefinedBenefitPlanBenefitObligationImpactOf65BasisPointIncreaseInDiscountRateAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_UtilitiesPropertyPlantAndEquipmentGrossAbstract" abstract="true" name="UtilitiesPropertyPlantAndEquipmentGrossAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="awr_RegulatoryAssetRecoveryPeriods" abstract="false" name="RegulatoryAssetRecoveryPeriods" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="awr_RegulatoryAssetNotAccruingCarryingCosts" abstract="false" name="RegulatoryAssetNotAccruingCarryingCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="awr_OtherProductsandServicesMember" abstract="true" name="OtherProductsandServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_ContributionsInAidConstructionNet" abstract="false" name="ContributionsInAidConstructionNet" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_EffectiveIncomeTaxRateTable" abstract="true" name="EffectiveIncomeTaxRateTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="awr_LineofCreditFacilityIncrementalExpansionofBorrowingCapacity" abstract="false" name="LineofCreditFacilityIncrementalExpansionofBorrowingCapacity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_GroundwaterProductionAssessment" abstract="false" name="GroundwaterProductionAssessment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_NotePayable956PercentDue2031Member" abstract="true" name="NotePayable956PercentDue2031Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_TariffbasedRevenuesMember" abstract="true" name="TariffbasedRevenuesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_MutualFundsMember" abstract="true" name="MutualFundsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_EffectiveIncomeTaxRateLineItems" abstract="true" name="EffectiveIncomeTaxRateLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="awr_RegulatoryAssetAmountBilledToCustomersAsSurcharges" abstract="false" name="RegulatoryAssetAmountBilledToCustomersAsSurcharges" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_Termestimatefortheenvironmentalcleanup" abstract="false" name="Termestimatefortheenvironmentalcleanup" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="awr_PropertyPlantAndEquipmentAndInvestmentsOtherNet" abstract="false" name="PropertyPlantAndEquipmentAndInvestmentsOtherNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_UnbilledContractsReceivableFromUSGovernment" abstract="false" name="UnbilledContractsReceivableFromUSGovernment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="awr_NumberOfRegistrantsFilingCombinedReport" abstract="false" name="NumberOfRegistrantsFilingCombinedReport" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="awr_SurchargesCostrecoveryActivitiesMember" abstract="true" name="SurchargesCostrecoveryActivitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_NumberOfCustomers" abstract="false" name="NumberOfCustomers" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="awr_AdditionAbstract" abstract="true" name="AdditionAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="awr_BasisOfPresentationAbstract" abstract="true" name="BasisOfPresentationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="awr_PropertyPlantAndEquipmentAndInvestmentsOtherAndGoodwillNet" abstract="false" name="PropertyPlantAndEquipmentAndInvestmentsOtherAndGoodwillNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_PaymentsForProceedsFromRelatedPartyDebt" abstract="false" name="PaymentsForProceedsFromRelatedPartyDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_RegulatoryAssetCEMA" abstract="false" name="RegulatoryAssetCEMA" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_GoldenStateWaterCompanyMember" abstract="true" name="GoldenStateWaterCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_NotePayable2.17PercentDue2030Member" abstract="true" name="NotePayable2.17PercentDue2030Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_AmericanStatesUtilityServicesMember" abstract="true" name="AmericanStatesUtilityServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_NonUtilitiesPropertyPlantAndEquipmentGross" abstract="false" name="NonUtilitiesPropertyPlantAndEquipmentGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_ProceedsFromIssuanceOfCommonSharesAndStockOptionExercises" abstract="false" name="ProceedsFromIssuanceOfCommonSharesAndStockOptionExercises" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_FranchiseAndAssessmentFeesTaxes" abstract="false" name="FranchiseAndAssessmentFeesTaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_PublicUtilitiesPropertyPlantAndEquipmentDepreciationOnTransportationEquipment" abstract="false" name="PublicUtilitiesPropertyPlantAndEquipmentDepreciationOnTransportationEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_NatureOfOperationsAbstract" abstract="true" name="NatureOfOperationsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="awr_RestructuringAndRelatedCostsNetAssetsTransferred" abstract="false" name="RestructuringAndRelatedCostsNetAssetsTransferred" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_SupplyCostBalancingAccounts" abstract="false" name="SupplyCostBalancingAccounts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_PowerPurchasedForPumping" abstract="false" name="PowerPurchasedForPumping" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_InvestmentTerm" abstract="false" name="InvestmentTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="awr_ContractedServicesMember" abstract="true" name="ContractedServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_WeightedAverageDividendsCommonStock" abstract="false" name="WeightedAverageDividendsCommonStock" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_RedemptionPriceOfDebtInstrument" abstract="false" name="RedemptionPriceOfDebtInstrument" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_RegulatoryAndOtherAssets" abstract="false" name="RegulatoryAndOtherAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="awr_LiabilitiesOtherThanLongTermDebtRelatedToCapitalizationNoncurrent" abstract="false" name="LiabilitiesOtherThanLongTermDebtRelatedToCapitalizationNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="awr_GeneralRateCaseMemorandumAccountsMember" abstract="true" name="GeneralRateCaseMemorandumAccountsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_OtherRegulatoryAssetsNetMember" abstract="true" name="OtherRegulatoryAssetsNetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRateIncreaseDecrease" abstract="false" name="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRateIncreaseDecrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="awr_RatioofIndebtednesstoEBITDA" abstract="false" name="RatioofIndebtednesstoEBITDA" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="awr_CostsDeferredForFutureRecoveryOnAerojetCaseMember" abstract="true" name="CostsDeferredForFutureRecoveryOnAerojetCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
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  <xs:element id="awr_PensionCostsAndOtherPostretirementBenefitCostsMember" abstract="true" name="PensionCostsAndOtherPostretirementBenefitCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_AccountingPoliciesLineItems" abstract="true" name="AccountingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="awr_CostofConstruction" abstract="false" name="CostofConstruction" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="awr_NotePayable29PercentDue2040Member" abstract="true" name="NotePayable29PercentDue2040Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_DerivativeActivityVolume" abstract="false" name="DerivativeActivityVolume" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:energyItemType"/>
  <xs:element id="awr_CatastrophicEventMemoAccountCEMAMember" abstract="true" name="CatastrophicEventMemoAccountCEMAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_SyndicatedRevolvingCreditFacilityMemberMember" abstract="true" name="SyndicatedRevolvingCreditFacilityMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="awr_WaterRevenueAdjustmentMechanismMember" abstract="true" name="WaterRevenueAdjustmentMechanismMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
</xs:schema>
