SITE INFORMATION AND CORRESPONDENCE 1980-1999

Home Browse Search

WASTE DISCHARGE REQMENTS ORDER NO. 5-00 46- -20- CITY OF LODI WHITE SLOUGH WATER POLLUTION CONTROL PLANT SAN JOAQUIN COUNTY water quality objective, this Order will be reopened and effluent limits added for mercury. 7. Due to the listing of mercury on the California 303 (d) list as a pollutant causing impairment of the Sacramento-San Joaquin Delta, the discharge must not cause or contribute to increased mercury levels in fish tissue to meet the requirements of the anti- degradation policy described in SWRCB Resolution No. 68-16 and the anti degradation provision in 40 CFR 131.12 (a) (1). Therefore, the Discharger shall develop a mercury source reduction workplan acceptable to the Executive Officer within six (6) months after adoption of this Order. The purpose of the workplan is to investigate the causes of, and identify corrective control actions to control mercury loadings. The workplan shall include, at a minimum: source reduction activities under the pretreatment program; a public outreach program to eliminate or minimize the use of mercury thermometers, discharge of amalgam from dental offices, and regarding proper collection and disposal of fluorescent bulbs; and reductions in discharges to the river through reclamation of treated wastewater; preventative measures to minimize mercury discharges from new industry, commercial establishments and residential developments. The workplan will include a time schedule by which source control efforts identified in the approved workplan shall be implemented. Pretreatment related activities shall commence immediately upon approval of the workplan. The workplan shall become an enforceable part of the permit upon approval of the Executive Officer. 8. The Discharger shall conduct monitoring for diazinon and chlorpyrifos as outlined in the monitoring and reporting program to determine whether the levels of pesticides in the discharge causes or contributes to an in-stream excursion above a eater quality objective. If it is determined that the discharge has reasonable potential_to cause or contribute to an exceedance of a water quality objective, this Order will be reopened and effluent limitations added for the subject constituents. to ensure pesticides are eliminated from the discharge. 9. The Discharger shall conduct monitoring for ammonia, as outlined in the monitoring and reporting program. If it is determined that the discharge has reasonable potential to cause or contribute to an in-stream excursion above the water quality objective for toxicity, this Order may be reopened and effluent limitations for ammonia may be included 10. The Discharger shall conduct the three species chronic toxicity testing as specified in the Monitoring and Reporting Program. If there is consistent exceedance of the chronic toxicity monitoring trigger levels as indicated below, the Discharger shall implement the approved toxicity reduction evaluation (TRE) workplan within 15 days of the date of violation.