Company: DTK
Filing Date: 2025-05-01
Form Type: 10-Q
Source: 0000936340-25-000097
Chunk: 79

Company: DTE ENERGY CO
Filing Date: 2025-05-01
Form: 10-Q
Item: Part I, Item 1
Chunk 79
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 expenditures for environmental equipment beyond what is currently planned, financing costs related to additional capital expenditures, the purchase of emission credits from market sources, higher costs of purchased power, and the retirement of facilities where control equipment is not economical.  DTE Electric would seek to recover these incremental costs through increased rates charged to its utility customers, as authorized by the MPSC.To comply with air pollution requirements, DTE Electric has spent approximately $2.4 billion.  DTE Electric does not anticipate additional capital expenditures for air pollution requirements, subject to the results of future rulemakings.Water — In response to EPA regulations and in accordance with the Clean Water Act section 316(b), DTE Electric was required to examine alternatives for reducing the environmental impacts of the cooling water intake structures at several of its facilities.  A final rule became effective in October 2014, which required studies to be completed and submitted as part of the NPDES permit application process to determine the type of technology needed to reduce impacts to fish.  DTE Electric has completed the required studies and submitted reports for most of its generation plants, and a final study is in-process for Monroe power plant.  Final compliance for the installation of any required technology to reduce the impacts of water intake structures will be determined by the state on a case by case, site specific basis.As part of the Monroe power plant NPDES permit, EGLE has added an option to evaluate the thermal discharge of the facility as it relates to Clean Water Act section 316(a) regulations in order to establish an appropriate temperature discharge limit.  DTE Electric has submitted to EGLE a biological demonstration study plan to evaluate the thermal discharge impacts to an aquatic community.  After approval of the plan by EGLE and completion of field sampling, data will be processed and compiled into a comprehensive report.  At the present time, DTE Electric cannot predict the outcome of this evaluation or financial impact.

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Table of ContentsDTE Energy Company — DTE Electric CompanyCombined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Contaminated and Other Sites — Prior to the construction of major interstate natural gas pipelines, gas for heating and other uses was manufactured locally from processes involving coal, coke, or oil.  The facilities, which produced gas, have been designated as MGP sites.  DTE Electric conducted remedial investigations at contaminated sites, including three former MGP sites.  The investigations at the former MGP sites have revealed contamination related to the by-products of gas manufacturing.  Cleanup