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Pretreatment Performance

Basic. Enhanced. Fully Comply with local limits and categorical standards 403.6 CWA § 1251 Eliminate discharges No. of SIUs with no violation of cat. stds. and local limits. Correct permits and representative sampling 403.8(f)(1)(iii) & (v) 403.12

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Pretreatment Performance

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  1. Basic Enhanced Fully Comply with local limits and categorical standards 403.6 CWA § 1251 Eliminate discharges No. of SIUs with no violation of cat. stds. and local limits Correct permits and representative sampling 403.8(f)(1)(iii) & (v) 403.12 No. of facilities with incorrect permits or unrepresenta-tive sampling Interference Pass Through 403.5(a)(1) & (b)(4), (5) & (6) No. of instances of I&PT Pretreatment Performance Biosolids voluntarily meet Excpt. Qlty. (Tbl 3) 503 Regs. 403.2 No. of facilities at Excpt. Qlty CIUs voluntarily at zero discharge CWA § 1251 Eliminate discharges No. of facilities at zero discharge Emerging Pollutant Controls (Dental Hg & others) CWA § 1251 Eliminate discharges No. of pollutants & facilities with effective cntrl. pH violations Corrosion 403.5(b)(2) No. of pH violations Observed corrosion Spills due to nondomestic users 403.5(b)(3) No. of spills Explosions Haz. Atm. 403.5(b)(1)&7 No. of explosions Instances of haz. atm. (incl. closed cup test) Parameters Authority Measurements Pacific Southwest Region

  2. For more information, please contact: L. Keith Silva Pretreatment Coordinator Clean Water Act Compliance Office (WTR-7) Water Division Pacific Southwest Region U.S. Environmental Protection Agency 75 Hawthorne Street San Francisco, California 94105-3901 Phone: 415.972.3509 Fax: 415.947.3549 E-mail: silva.keith@epa.gov

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