SITE INFORMATION AND CORRESPONDENCE

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WASTE DISCHARGE REQUIItEiIIENTS ORDER NO. • -2- R. LAWSON ENTERPRISES DBA WILDROSE VINEYARDS SAN JOAQUIN COUNTY Wastewater from tank cleaning, grape crushing, stormwater, defrost water, and equipment/floor cleaning water are discharged to the wastewater treatment system. However, the Discharger is planning site improvements which will separate stormwater and tank defrost water from the winery wastewater flow. A site map is presented on Attachment B, which is attached hereto and made part of this Order by reference. 8. The Discharger estimated wastewater flow rates for tank wash water(1,500 gal/month), defrost water (33,000 gal/month, generated only three months per year), and grape crush cleaning water (3,000 gal/month, generated only three months per year). 9. Winery wastewater flow is not individually metered. Due to a meter failure, flow rates for the crush season are not available. Planned expansions and new site activities will result in increased flow rates. Presently, flows are not adequately metered; these waste discharge requirements include a provision for installation of a meter to determine the wastewater flow rate. Total flow rates (WildRose and CFP) measured in 1999 are presented below: Month Flow Rate (end) Comment January, 1999 7,522 February, 1999 17,100 March, 1999 12,926 April, 1999 8,290 May, 1999 3,070 June, 1999 2,230 July, 1999 3,960 August, 1999 8,670 September, 1999 9,000 Estimate,meter broken October, 1999 9,000 Estimate, meter broken November, 1999 8,920 December, 1999 8,728 Data from WildRose Report of Waste Discharge. 10. Stormwater which falls on buildings or paved areas of the Discharger's facility is presently directed into stormwater drains and is discharged to the wastewater treatment system. The Discharger is planning to separate the stormwater from the treatment system flow. 11. Winery wastewaters (except defrost water) are screened at floor drains and flow through a two- stage clarifier. Screenings and settleable materials are collected and disposed in trash dumpsters. Presently, defrost water is piped into the wastewater flow downstream of the clarifier and upstream of the treatment system. The Discharger is planning to separate the defrost water flow from the treatment system. 12. During wine production, various chemicals are used as either an additive, a fining agent, or as a cleaner/sanitizer. These compounds may include the following: C.TR je FiWSk.\Wild Rare\ .,dR_WDRA..