Laserfiche WebLink
Quarterly Monitoring Report Page 2 <br /> TURNER ROAD VINTNERS <br /> WKA No. 5279.03 <br /> March 31, 2005 <br /> 99-103 requirements. Wallace Kuhl and Associates (WKA) installed two additional monitoring <br /> wells (MW4 and MW5) in August 2004. <br /> Topography in the vicinity of the site is relatively flat, with elevations decreasing very gradually <br /> from east to west. According to the USGS Thornton 7.5-minute topographic quadrangle (1968, <br /> revised 1993),the East Facility has surface elevations of about 20 to 25 feet above mean sea <br /> level and the West Facility has surface elevations of about 10 to 18 feet above mean sea level. <br /> Groundwater Monitoring <br /> First-quarter groundwater monitoring was performed at the site on January 17, 2005. The <br /> groundwater monitoring activities included measuring the depth to groundwater, purging, and <br /> collecting groundwater samples for laboratory analysis. <br /> Prior to sampling, each well was purged of approximately three casing volumes. Groundwater <br /> samples were then obtained using an electric submersible pump and low-density polyethylene <br /> (LDPE)tubing. Samples were collected in preserved, analyte-specific sampling containers <br /> provided by the analytical laboratory. Samples were immediately placed in an ice-chest <br /> containing ice and submitted under Chain-of-Custody documentation to a California Department <br /> of Health Services-certified laboratory for analysis as follows: <br /> MW through MW3 total dissolved solids, nitrate as nitrogen, specific <br /> conductivity, pH using EPA 6000/7000 Series <br /> MW4 and MW5 General Minerals (total dissolved solids, nitrate as nitrogen, <br /> specific conductivity, pH, calcium, chloride, magnesium, <br /> sodium, nitrate, sulfate, hardness, and total alkalinity <br /> including alkalinity series)using EPA 6000/7000 Series <br /> Well monitoring and purging equipment was cleaned prior to use in each well. Equipment <br /> cleaning rinsate and water purged from the wells was disposed in the aeration ponds on site. <br /> Well Purging Data Sheets are attached in Appendix A. Chain-of-Custody documentation and <br /> laboratory analytical reports are presented in Appendix B. <br /> `NK <br /> WALLACE-KUHL <br /> Er ASSOCIATES INC. <br />