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Environmental Commitments and Contingencies Summary of Environmental Liabilities (Tables) | 3 Months Ended
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Mar. 31, 2018
Environmental Commitments and Contingencies [Abstract] |
Environmental Remedies [Table Text Block] |
Jurisdiction | MGP Site | Status | Cost to Clean up | Recovery through Rates
Florida | West Palm Beach | Remedial actions approved by the FDEP have been implemented on the east parcel of the site. Similar remedial actions expected to be implemented on other remaining portions. | Between $4.5 million to $15.4 million, including costs associated with the relocation of FPU’s operations at this site, which is necessary to implement the remedial plan, and any potential costs associated with future redevelopment of the properties. | Yes
Florida | Sanford | In March 2018, the EPA approved a "site-wide ready for anticipated use" status, which is the final step before delisting a site. Construction has been completed and restrictive covenants are in place to ensure protection of human health. The only remaining activity is long-term groundwater monitoring. It is unlikely that FPU will incur any significant future costs associated with the site. | FPU's remaining remediation expenses, including attorneys' fees and costs, are anticipated to be less than $10,000. | Yes
Florida | Winter Haven | Remediation is ongoing. | Not expected to exceed $425,000, which includes costs of implementing institutional controls at the site. | Yes
Delaware | Seaford | Proposed plan for implementation approved by the DNREC in July 2017. | Between $273,000 and $465,000. | Yes
Maryland | Cambridge | Currently in discussions with the MDE. | Unable to estimate. | N/A

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