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4PC r 5,5 California Regional Water Quality Control Board Central Valley Region $ Robert Schneider,Chair Gray Davis Winston H.Hickox Environ enta Sacramento Main Office M E CE� � Environmental Internet Address: http://www.swrcb.ca.gov/—rwgcb5 ►(JUI�l Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 Phone(916)255-3000•FAX(916)255-3015 APR p 7 2003 4 April 2003 ENVIRORMENT HEALTH P PERMIT/SERVICES Jeff Runquist McManis Family Vineyards/ 18700 E. River Road Ripon, CA 95366 NOTICE OF VIOLATION AND REQUEST FOR TECHNICAL REPORT, RJM ENTERPRISES dba BROTVNS LAKE RANCH AND RIVER CREST VINEYARDS, SAN JOA QUIN COUNTY Regional Board staff has reviewed the 24 February 2003 correspondence from Swanson International that describes the proposed installation of a clay liner for the wastewater pond at the RJM Enterprises dba Browns Lake Ranch and Rivercrest Vineyards facility. The proposed liner consists of a two-feet thick clay liner compacted so the hydraulic conductivity will not exceed 10-6 centimeters per second. In researching this issue of the clay liner, staff also reviewed the effluent monitoring and groundwater monitoring that has been conducted to date at the facility. The following violation of WDRs Order No. 5-00-021 was noted: • Discharge Specification B.4 includes a total dissolved solids (TDS) concentration limit of 450 mg/1 with a monthly average of 1,000 mg/l. Review of recent self-monitoring reports indicates effluent has exceeded that standard since January 2002, with TDS concentrations ranging from 1,150 mg/1 to 13,500 mg/l. California Water Code Section 13173b defines designated waste as "...contains pollutants that, tinder ambient environmental conditions at a waste management unit could be released in concentrations exceeding applicable water quality objectives or that could reasonably be expected to affect beneficial uses of the waters of the state... ". Because background groundwater concentrations of TDS are approximately 400 mg/l, nearly all of the concentration data presented in the self-monitoring reports indicate designated waste is being stored and discharged from the pond. Storage of designated waste must comply with the California Code of Regulations Title 27. If RJM Enterprises cannot comply with the effluent limits presented in the WDRs, then a Report of Waste Discharge (RWD) consistent with Title 27 Sections 21710, 21740, 21750, and 21760 shall be submitted. It should be noted that groundwater impacts might not have been measured at this time because groundwater is fairly deep and waste constituents are being temporarily attenuated in the subsurface. A limited amount of attenuation capacity exists in the subsurface and staff anticipates when the attenuation California Environmental Protection Agency 0i Recycled Paper ' The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. For a list of simple ways you can reduce demand and cut your ener.gy costs,see our Web-site at htto://www.swrcb.ca.iov/nvocb5