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Soil Suitability / Nitrate Loading Study <br />Cherokee Memorial Park Vineyard Chapel Addition Ŷ Lodi, California <br />March 5, 2021 Ŷ Terracon Project No. NA207102 <br />Responsive Ŷ Resourceful Ŷ Reliable 12 <br />milligrams per liter (mg/L) nitrate (NO3) or (3 mg/L-N). Areas having 24.75 mg/L-NO3 (5.5 mg/L- <br />N) or more, are those in which nitrate concentrations may be increasing (Hull, 1984). <br />DBCP (dibromo chloropropane) is a nematocide and soil fumigant for vegetables and grapes. It <br />is thought to cause health problems consisting of kidney damage, liver damage, and cancer. The <br />use of DBCP was discontinued in 1979. <br />Based on the historical information, the past agricultural land use, former onsite septic system, <br />and septic systems in the area should be considered potential groundwater contamination <br />sources. According to the State Water Resources Control Board website, there were no nitrate <br />impacted wells reported within 2,000 feet of the site. <br />Mr. Scheffer provided two drinking water sampling reports prepared by FGL. Based on a review <br />of report dated October 21, 2020, a groundwater sample collected from the Vineyard Chapel <br />breakroom kitchen was analyzed for total fecal coliform and reported as “absent”. A report dated <br />January 29, 2021 indicated a groundwater sample collected from Well #4 was analyzed for nitrate <br />nitrogen and reported at 1.3 mg/L, below the MCL. <br />1.4.3 Water Sample Location <br />A domestic groundwater well is currently located on the northern portion of the site, northwest of <br />the Vineyard Chapel (Exhibit 2). On February 9, 2021 two groundwater samples (GW-1 and GW- <br />2) were collected directly from a faucet connected to the well tank. The water faucet was allowed <br />to run for approximately 10 minutes until the well pump turned on and cycled multiple times. <br />1.4.4 Groundwater Sample Analysis <br />Sample GW-1 was collected into a clean unpreserved plastic 125 milliliter (ml) bottle and analyzed <br />for nitrate as N by EPA Extraction Method E300.1. Sample GW-2 was collected into two clean <br />glass 40 ml VOAs preserved with ascorbic and maleic acid and analyzed for DBCP (1,2-Dibromo- <br />3-chloropropane) by EPA Extraction Method E524.3. <br />1.4.5 Groundwater Sample Handling <br />The groundwater samples were immediately placed on ice and submitted to McCampbell <br />Analytical Inc. for analysis. Nitrate as N was reported at 1.4 milligrams per liter (mg/L) in <br />groundwater sample GW-1, below the Maximum Contaminant Level (MCL) of 10 mg/L-N. DBCP <br />was reported at 0.12 micrograms per liter (μg/L) in groundwater sample GW-2, below the MCL of <br />0.2 μg/L.