Summary of TMDL requirements in stormwater permits Revision as of 19:59, 27 February 2015 by Mhammes (talk | contribs)(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff) Summary of TMDL requirements in stormwater permits

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Total Maximum Daily Load (TMDL) Wasteload Allocations (WLAs) approved by the U.S. Environmental Protection Agency (EPA) prior to the effective date of the MS4 General Permit (permit) must be addressed by Permittees in their Stormwater Pollution Prevention Program (SWPPP) Document. The Clean Water Act requires the Minnesota Pollution Control Agency (MPCA) to include, in all National Pollutant Discharge Elimination System (NPDES) permits, discharge requirements that are consistent with requirements established in TMDLs. The permit requires applicants to submit information, at the time of application, on applicable WLAs and indicate how they will make progress toward achieving those WLAs over the current five-year permit term. Applicants must include long term strategies for meeting WLAs that will not be fully achieved in the current permit term and target dates for fully achieving all WLAs.