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SPX CORPORATION ORDER R5-2019-0018 <br /> SPX MARLEY COOLING TECHNOLOGIES GROUNDWATER CLEANUP NPDES NO. CA0081787 <br /> 4. Stringency of Requirements for Individual Pollutants <br /> This Order contains WQBEL's for individual pollutants, which are summarized in Table F- <br /> 11 below. In addition, this Order contains effluent limitations more stringent than the <br /> minimum, federal technology-based requirements that are necessary to meet water <br /> quality standards. <br /> Summary of Final Effluent Limitations <br /> Discharge Point 001 <br /> Table F-11. Summary of Final Effluent Limitations <br /> Effluent Limitations <br /> Parameter Units Average Average Maximum Instantaneous Instantaneous BasisM <br /> Monthly Weekly Daily Minimum Maximum <br /> pH standard -- __ __ 6. 5 8.5 BP <br /> units <br /> Chromium (VI), pg/L 4.9 -- 16 -- -- CTR <br /> Dissolved <br /> Copper, Total pg/L 6.6 -- 17 -- -- CTR <br /> Recoverable <br /> Electrical pmhos/c <br /> Conductivity @ -- -- -- 1100(2) -- Perf. <br /> 25°C m <br /> BP—Based on water quality objectives contained in the Basin Plan. <br /> CTR— Based on water quality criteria contained in the California Toxics Rule and applied as specified in the <br /> Perf. —Based on Facility performance. <br /> 2 Annual average effluent limitation. <br /> E. Interim Effluent Limitations — Not Applicable <br /> F. Land Discharge Specifications — Not Applicable <br /> G. Recycling Specifications — Not Applicable <br /> V. RATIONALE FOR RECEIVING WATER LIMITATIONS <br /> A. Surface Water <br /> 1. CWA section 303(a-c), requires states to adopt water quality standards, including criteria <br /> where they are necessary to protect beneficial uses. The Central Valley Water Board <br /> adopted water quality criteria as water quality objectives in the Basin Plan. The Basin <br /> Plan states that "[t]he numerical and narrative water quality objectives define the least <br /> stringent standards that the Regional Water Board will apply to regional waters in order <br /> to protect the beneficial uses." The Basin Plan includes numeric and narrative water <br /> quality objectives for various beneficial uses and water bodies. This Order contains <br /> receiving surface water limitations based on the Basin Plan numerical and narrative <br /> water quality objectives for dissolved oxygen and pH. <br /> VI. RATIONALE FOR PROVISIONS <br /> A. Standard Provisions <br /> Standard Provisions, which apply to all NPDES permits in accordance with 40 C.F.R. section <br /> 122.41, and additional conditions applicable to specified categories of permits in accordance <br /> with 40 C.F.R. section 122.42, are provided in Attachment D. The discharger must comply <br /> ATTACHMENT F— FACT SHEET F-34 <br />