Laserfiche WebLink
vCalifornia Regional Water Quality Control Board <br /> Winston H.Hickox Central Valley Region Cray Davis <br /> Secreta or <br /> Environmental Robert Schneider,Chair Governor <br /> Protection <br /> Sacramento Main Office <br /> Internet Address: http://www.swrcb.ca.gov/- gcb5 _ <br /> 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 Nl I Iv 0 9 Ml <br /> 0 l <br /> 7 November 2001 E�!''!': <br /> Paul Sensibaugh Erik Teed-Bose <br /> Mountain House CSD Trimark Communities <br /> 222 East Weber Avenue, Room 3 3120 Tracy Boulevard, Suite A <br /> Stockton, CA 95202-2778 Tracy, CA 95376 <br /> MO UNTA IN HO USE GROUNDWATER AND AGRICULTURAL DRAINAGE MONITORING <br /> BACKGROUND DATA, SAN JOA Q UIN CO UNTY <br /> On 11 September 2001,Regional Board staff conducted an inspection of the Mountain House wastewater <br /> treatment facility storage ponds, land application areas, and agricultural ditches. The purpose of the site <br /> inspection was to become familiar with the general layout of the site and view the agricultural ditches that <br /> have been the subject of discussion regarding sampling requirements. A site inspection photograph log is <br /> enclosed with this letter. <br /> The following observations were made during the site inspection: <br /> • The storage reservoirs were under construction. <br /> • Groundwater extraction was occurring. The extracted groundwater was being applied to land. <br /> • The quality of water in the agricultural ditches is dependant on the farming operations. Water <br /> observed in the agricultural ditches may consist primarily of irrigation water rather than <br /> groundwater. Nevertheless, the Board recognizes the potential value in monitoring the agricultural <br /> ditch water quality to determine if water quality trends can be determined. <br /> • The land application areas were planted in silage corn and alfalfa. <br /> Based on the site inspection observations and discussions with Mountain House consultants, the following <br /> are required for the continued sampling at the site: <br /> • Samples shall be collected as required by Monitoring and Reporting Program No. 98-109. <br /> Sampling of the water quality of the agricultural ditches shall continue. Sampling of the shallow <br /> groundwater monitoring wells can be performed without purging. If inadequate sample volume is <br /> present in the monitoring well, the well shall be allowed to recharge an adequate time to collect the <br /> required samples. <br /> • An additional"Agricultural Ditch"sample shall be added to the monitoring network at the lift <br /> station where water is pumped over the levee to Old River. <br /> California Environmental Protection Agency <br /> Qa Recycled Paper <br /> The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. <br /> For a list of simple ways you can reduce demand and cut your energy costs,see our Web-site at httD://wwsv.swrcb.ca.gov/rwgcb5 <br />