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National Pollutant Discharge Elimination System (NPDES)
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Pesticide Applications
Policy and Guidance Documents

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Resort documents: | By Name |     | By Date |
  • Interpretive Statement and Regional Guidance on the Clean Water Act's Exemption for Return Flows from Irrigated Agriculture (PDF) (43KB)

  • In Headwaters, Inc. vs. Talent Irrigation District, the U.S. Court of Appeals for the Ninth Circuit held that an applicator of aquatic herbicides was required to obtain a NPDES permit under the Clean Water Act.
    Date Published: 03/29/2002

  • Sixth Circuit Decision in National Cotton Council, et al, v. EPA (PDF) (115KB)

  • On January 7, 2009 the U.S. Sixth Circuit Court of Appeals held in National Cotton Council, et al, v. EPA, that the final rule was not a reasonable interpretation of the CWA and vacated the rule. Reversing EPA's November 2006 Aquatics Pesticides rule, the Sixth Circuit held that CWA permits are required for all biological pesticide applications and chemical pesticide applications that leave a residue in water when such applications are made in or over, including near, waters of the U.S. The court's decision, which applies nationally, is effective seven days after the deadline for rehearing expires or seven days after a denial of any petition for rehearing. Parties had until April 9, 2009 to seek rehearing
    Date Published: 01/07/2009