Charleston, WV
Environmental Alert
(by Robert Stonestreet and Kip Power)
The federal Environmental Protection Agency (EPA) has taken rare action in proposing to not only supersede the role of the West Virginia Department of Environmental Protection (WVDEP) in addressing water quality conditions in the state, but also seeking to impose a new standard for determining how to classify the biological health of West Virginia waters. Under Section 303(d) of the federal Clean Water Act, state governments are required to identify, every three years, waters within their borders that do not meet designated water quality standards. Such waters are deemed “impaired” for the water quality standards exceeded and are placed on what is known as a “303(d) List.” That list must include waters that fail to meet numeric water quality standards – i.e., specific concentrations of iron, aluminum, and other substances. Waters can also be “impaired” for failure to comply with “narrative” water quality standards – i.e., narrative descriptions of certain prohibited conditions, such as distinctly visible foam, sludge deposits, foul odors, or discoloration. West Virginia’s narrative standards also provide that waters can be considered “biologically impaired” if they contain “materials in concentrations which are harmful, hazardous, or toxic to man, animal or aquatic life.”
When a stream is placed on the 303(d) List, it is put in line for the development of a pollution reduction plan (known as a “total maximum daily load” or “TMDL”). Among other things, a TMDL results in more restrictive permit limits for discharges associated with the parameters deemed to be contributing to the impairment.
For more than 20 years, the WVDEP has used the West Virginia Stream Condition Index (WVSCI) as the primary methodology for evaluating whether a stream is “biologically impaired.” Under WVSCI, a stream is considered impaired if it does not support a certain volume and diversity of insects and other aquatic life even if the stream meets all numeric water quality standards. …