Laserfiche WebLink
27 August 2025 AdvancedGeo <br /> Project No. 25-8011 An Employee—Owned Company <br /> Page 5 of 14 Q,%a X <br /> According to the State of California Department of Water Resources (DWR) Sustainable <br /> Groundwater Management Act (SGMA) Data Viewer, Seasonal Report for Spring 2022, <br /> depth to groundwater at the site is approximately 25 - 30 feet below surface grade (bsg). <br /> Between 2013 and 2022, depth to groundwater at the site has fluctuated between <br /> approximately 15 and 40 feet bsg. Groundwater flow direction locally appears to be to the <br /> northeast. Groundwater was not encountered in the 42-inch-deep percolation test holes <br /> advanced in August 2025. <br /> 4.2. GROUNDWATER CONTAMINATION IN THE AREA OF THE SITE <br /> The immediately adjacent and outlying land use for the parcel is residential and <br /> agricultural. Potential groundwater contamination can occur from several sources <br /> including leaking underground storage tanks, septic systems, agricultural activities, <br /> dairies and stormwater infiltration. <br /> A review of the California Department of Toxics and Substances Control (DTSC) <br /> EnviroStor Database and the California Geotracker Web site did not reveal any active <br /> Leaking Underground Storage Tank (LUST) sites or other environmental investigations <br /> within 1,000 feet of the site. <br /> 4.3. ON-SITE EXISTING WELL DESCRIPTION <br /> There is one existing domestic water supply well on the property located to the southern <br /> portion of the subject property. The well is not currently in use as the subject property <br /> residence is vacant. There is one record on file at EHD for well pump replacement <br /> (WP0041664) dated January 2021. No additional records were on file at EHD. Copies of <br /> the well permits are included in Appendix B. <br /> 4.4. CONSTITUENTS BEING TESTED FOR IN THE WATER SAMPLE <br /> Nitrate (NO3) constituents and 1,2-dibromo-3-chloropropane (DBCP) were tested in the <br /> existing groundwater supply well at the subject property. <br /> 4.5. GROUNDWATER SAMPLE COLLECTION <br /> On 13 August 2025, a sample of the drinking water provided by the current groundwater <br /> supply well at 9128 South Priest Road, French Camp, California was collected in an <br /> unpreserved 0.5-liter plastic container and two volatile organic analysis (VOAs) vials. The <br /> groundwater sample containers were properly labeled, placed in a chilled container, and <br /> transported under chain-of-custody protocols to McCampbell Analytical, Inc. (MAI), a <br /> California Environmental Laboratory Accreditation Program (ELAP)-certified laboratory. <br /> The sample was analyzed for Nitrate as Nitrogen (N), Nitrate as NO3- and DBCP. <br />