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TMDLs - Implementation


Once the TMDL Study (i.e., development phase) is complete, the draft report is submitted to EPA. EPA then has 30 days to review and approve the TMDL. Following EPA's approval of the TMDL, a TMDL Implementation Plan (IP) is developed. Implementation Plan development should start as soon as possible after EPA approval of the TMDL Study.

Although not a federal requirement, Virginia state law does require the development of an IP. Local or state agencies as well as community watershed groups can take the lead in developing TMDL IPs. Interested in developing an implementation plan? Check out our Guidance Manual.

While an implementation plan is being developed, meeting minutes, presentations and supplemental materials are posted on our Progress page.

Virginia has completed 90 IPs for bacteria, sediment, and nutrient TMDLs, addressing 476 impaired stream segments. Copies of both draft and approved implementation plans can be found on our Reports page.

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Virginia Department of
Environmental Quality
P.O. Box 1105
Richmond, VA 23218
(804) 698-4000

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