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WASTE DISCHARGE REQUIREMENTS ORDER R5-2013-0028 -5- DELICATO VINEYARDS, INC. DELICATO FAMILY VINEYARDS SAN JOAQUIN COUNTY 19. Wastewater is currently collected in a gravity drain system that directs water into three sumps within the winery facility. Because the majority of the facility is exposed to the elements, storm water that falls on processing areas of the winery is collected in the wastewater sump system. Wastewater flow and quality have been monitored on a monthly basis since 2002, in accordance with Revised MRP 96-077. Wastewater constituent concentrations are highly variable depending on the season and operations being conducted at the winery. The following table summarizes annual flow rates and annual flow weighted average wastewater constituent concentrations from 2002 through 2011. Annual Annual Flow-Weighted Mean Result(m /L Flow NO3 as Year MGY BOD Sulfate N TKN TDS VDS FDS H' 2002 41.7 3,766 135 1.1 26 1,346 659 687 3.6-10.7 2003 41.9 2,066 119 1.3 19 1,078 491 587 3.7-12.1 2004 44.5 4,456 115 1.5 29 1,213 572 641 3.7-11.1 2005 50.7 3,565 117 1.5 27 1,269 553 716 3.5-11.9 2006 58.5 4,054 200 1.5 18 1,714 719 995 3.8-11.9 2007 46.1 3,589 169 1.4 19 1,296 482 814 4.0-12.1 2008 43.3 4,393 175 2.2 21 1,862 1,160 703 3.0-12.1 2009 51.4 5,303 165 2.0 51 1,850 1,091 760 3.7-9.7 2010 49.4 4,489 217 0.7 63 1,432 789 643 3.7-11.2 2011 53.5 1 4,231 1 125 0.8 54 1,330 879 451 3.8-10.1 Average 2 48.1 1 3,987 1 154 1.4 32 1,442 736 706 3.0-12.1 pH values are reported as ranges for individual sumps. 2 Average values from 2002 through 2011. 20. Prior to 2011, the LAAs totaled approximately 20 acres. In 2011, the LAAs were reconfigured to include an additional three acres by shifting compost operations and removing internal roadways. All calculations for current discharge presented in the 2012 RWD were based on 20 acres of LAAs. 21. The 2012 RWD provided totals of wastewater discharge to 20 acres of LAAs between 2009 and 2011, as summarized below: Process Average Daily Average Yearly Year Wastewater Discharge Application Depth MGY MGD Inches 2009 51.4 0.14 95 2010 49.4 0.14 91 2011 53.6 0.15 99