California State Water Board Approves New Industrial Stormwater Permit

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On April 1, 2014,after more than a decade of analysis and debate, the California State Water Resources Control Board approved a new statewide industrial stormwater permit increasing and changing the requirements of industrial facilities to control storm water discharges from their sites. The Industrial General Permit (IGP), which is a statewide general National Pollutant Discharge Elimination System (NPDES) permit, regulates the discharge of storm water associated with industrial activity under requirements of the U.S. EPA. The IGP will regulate stormwater at sites such as manufacturing facilities, disposal sites, recycling sites, mining operations, and transportation facilities. The new requirements are many and will require far more record-keeping, sampling, reporting, and training to comply with best management practices (BMPs) and numeric action levels (NALs) to reduce pollutants in the stormwater discharge. The permit is to be considered for renewal every five years, and will go into effect July 15, 2015.