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WASTE DISCHARGE REQUIREMENTS ORDER R5-2012-0103 - 11 - <br />CONSTELLATION BRANDS U.S. OPERATIONS, INC. dba WOODBRIDGE WINERY <br />WOODBRIDGE WINERY <br />SAN JOAQUIN COUNTY <br /> <br />LAND APPLICATION AREAS <br />27. At full build-out, the LAAs will consist of 101 acres of cropped land. The LAAs will be <br />double cropped using Sudan grass followed by a winter forage crop, or alfalfa, or <br />equivalent crop. The locations of the LAAs are presented on Attachment B, and LAA <br />acreage is tabulated below: <br />LAA Name Acreage <br />A Block 5 <br />A2 Block 3 <br />C Block 3 <br />D Block 11 <br />E Block 12 <br />F Block 14 <br />H Block 27 <br />P Block 161 <br />Q Block 101 <br />Total 101 <br />1 Blocks P and Q will be completed in the future to <br />accommodate increased wastewater flows. <br />28. Treated wastewater may be applied by flood irrigation, sprinkler system, or drip <br />irrigation. Currently, application is accomplished using flood irrigation on the vineyards <br />and sprinkler irrigation on the cropped land. Sprinkler irrigation was used for the Crop <br />Uptake study described below. <br />29. A Crop Uptake and Assimilative Capacity study was performed from 2007 through <br />2010 to determine crop uptake rates and determine preferred crop selection. The <br />following determinations resulted from the study: <br />a. Double cropping warm weather crops and single cropping cool season crops <br />provided the best overall crop uptake rates. <br />b. Crop uptake rates for nitrogen exceeded the wastewater-derived nitrogen <br />application for both summer and winter crops. Winter triticale crops harvested in <br />spring 2009 had biomass production averaging 3.6 ton/ac with 80 lbs/ac nitrogen <br />uptake. This value is almost double the anticipated total winter nitrogen additions <br />from process water irrigation. Depending on the crops grown, nitrogen uptake <br />rates can exceed 350 lbs/ac/year. <br />c. To maintain adequate crop health, supplemental nitrogen fertilizers may be <br />needed. Soil sampling results for the cropping study demonstrated that, with the <br />proposed LAA management practices, soil nitrogen decreased during the study <br />period.