1996-06-12_HYDROLOGY - M1977378 - Laserfiche WebLink

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A. DEFINITION OF EFFLUENT LIMITATIONS 1. Effluent Limitations Beginning no later than the effective date of this permit and lasting through May 31, 2001, the permittee is authorized to discharge from outfall 004A, the outfall from the fourth treatment pond to Cement Creek, and 004X, which is physically the same point, but which will be used for chronic WET testing purposes until treatment of Cement Creek begins. After treatment of Cement Creek begins, the permittee may report "no discharge" on the DMR for this point, and then request inactivation of the discharge point. In accordance with the Water Quality Control Commission Regulations for Effluent Limitations, Section 10.1.3, and Regulations for State Discharge Permit System, Section 6.9.2, 5 C.C.R. 1002 -2, the permitted discharge shall not contain effluent parameter concentrations which exceed the following limitations specified below or exceed the specified flow limitation. Effluent Parameter Limits for Point 004A Flow, MGD (min -max) Report N/A Report pH, su (min -max) N/A N/A 7.0 - 10.0 Oil and Grease, mg/1 N/A N/A 10 TSS, mg/1 20 30 N/A Cadmium, Total, mg/1 0.05 N/A 0.10 Copper, Total, mg/1 0.15 N/A 0.30 Lead, Total, mg/1 0.30 N/A 0.60 Zinc, Total, mg/1 0.75 N/A 1.5 Whole Effluent Toxicity, Chronic Lethality N/A N/A See Part I.A.2. There shall be no discharge of floating solids. PART I 'art I Page No. 3 Permit No.: CO- 0027529 Discharge Limitations - Maximum Concentrations 30 -Day Avg. 7 -Day Avg. Daily Max. Limits for Point 004X 2. Whole Effluent Toxicity - Chronic Lethality Limitation Beginning upon the effective date of this permit, there shall be no statistically significant difference in lethality (at the 95% confidence level) between the control and any effluent concentration less than or equal to 10.3% effluent. Such limitation shall apply as a daily maximum.