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National Information

Stormwater Regulations and Guidance

Clean Water Act PDF (230 pp, 536K, About PDF) The Federal Water Pollution Control Act [As Amended Through P.L. 107–303, November 27, 2002]

Federal Register Version of the Phase 2 Rule PDF (131 pp, 1.24MB, About PDF) NPDES Regulations for Revision of the Water Pollution Control Program Addressing Storm Water Discharges; Final Rule.  40 CFR Parts 9, 122, 123, and 124.

40 CFR Part 122 PDF (176 pp, 381K, About PDF) The National Pollutant Discharge Elimination System [Revised as of July 1, 2001]

NPDES Stormwater Program Questions and Answers PDF (35 pp, 384K, About PDF) [Revised December 17, 2004]

Region 8 clarification of the definition of storm water discharges associated with industrial activity and small construction activity PDF (12 pp, 263K, About PDF)


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