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United States Environmental Protection Agency
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Permit Compliance System (PCS)

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What is PCS?

PCS, Permit Compliance System, is a national computerized management information system that automates entry, updating, and retrieval of National Pollutant Discharge Elimination System (NPDES) data and tracks permit issuance, permit limits and monitoring data, and other data pertaining to facilities regulated under NPDES. PCS was developed in 1974 and resides on a mainframe computer at EPA's National Computer Center (NCC) at Research Triangle Park (RTP) in North Carolina. PCS records water-discharge permit data on more than 64,000 facilities nationwide.

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