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SPX CORPORATION ORDER R5-2019-0018 <br /> SPX MARLEY COOLING TECHNOLOGIES GROUNDWATER CLEANUP NPDES NO. CA0081787 <br /> Table 4. Effluent Limitations <br /> Effluent Limitations <br /> Parameter Units Average Maximum Annual Instantaneous Instantaneous <br /> Monthly Daily Average Minimum Maximum <br /> Conventional Pollutants <br /> pH standard units -- -- -- 6. 5 8.5 <br /> Priority Pollutants <br /> Chromium (VI), Dissolved pg/L 4.9 16 -- -- -- <br /> Copper, Total pg/L 6.6 17 -- -- <br /> Recoverable <br /> Elect <br /> Crical Conductivity @ pmhos/cm -- 1100 -- -- <br /> a. Acute Whole Effluent Toxicity. Survival of aquatic organisms in 96-hour bioassays <br /> of undiluted waste shall be no less than: <br /> i. 70%, minimum for any one bioassay; and <br /> ii. 90%, median for any three consecutive bioassays. <br /> 2. Interim Effluent Limitations - Not Applicable <br /> B. Land Discharge Specifications — Not Applicable <br /> C. Recycling Specifications — Not Applicable <br /> V. RECEIVING WATER LIMITATIONS <br /> A. Surface Water Limitations <br /> The discharge shall not cause the following in the Stockton Diverting Canal. <br /> 1. Bacteria. The fecal coliform concentration, based on a minimum of not less than five <br /> samples for any 30-day period, to exceed a geometric mean of 200 MPN/100 mL, nor <br /> more than 10 percent of the total number of fecal coliform samples taken during any 30- <br /> day period to exceed 400 MPN/100 mL. <br /> 2. Biostimulatory Substances. Water to contain biostimulatory substances which <br /> promote aquatic growths in concentrations that cause nuisance or adversely affect <br /> beneficial uses. <br /> 3. Chemical Constituents. Chemical constituents to be present in concentrations that <br /> adversely affect beneficial uses. <br /> 4. Color. Discoloration that causes nuisance or adversely affects beneficial uses. <br /> 5. Dissolved Oxygen: <br /> a. The monthly median of the mean daily dissolved oxygen concentration to fall below <br /> 85 percent of saturation in the main water mass; <br /> b. The 95 percentile dissolved oxygen concentration to fall below 75 percent of <br /> saturation; nor <br /> c. The dissolved oxygen concentration to be reduced below 7.0 mg/L at any time. <br /> 6. Floating Material. Floating material to be present in amounts that cause nuisance or <br /> adversely affect beneficial uses. <br /> WASTE DISCHARGE REQUIREMENTS 5 <br />