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September 20,2002 Job Number: LG02-261 Page 4 Table 2. Summary of Available Ground Water Information. Date,Source Groundwater Depth Notes August 1,2002,A 3-ft deep soil boring was No ground water drilled on each parcel,Neil O. Anderson& encountered. Associates, Inc. .. July 30,2002, Water sample from a Unknown. Water quality test for nitrate: neighboring domestic water well located at 10 mg/L-NO,(or 2.2 mg/L-N) 9415 East Schmiedt Road. Water quality test for DBCP-ND. Fall 1998,San Joaquin County Flood Control About 70 feet. About 50 feet/mile flowing toward and Water Conservation District map.I the east southeast. Spring 1999, San Joaquin County Flood About 50 feet. About 50 feet/mile flowing toward Control and Water Conservation District. the east. Note: ND=Non-detectable(or not found at detectable limits). A ground-water sample was obtained from a neighboring water well located at 9415 East Schmiedt Road, on July 30, 2002. The water samples were sent to Precision Environmental Laboratory, Stockton, for testing on the same day. The samples were tested for the presence of dibromochloropropane (DBCP) and Nitrate (NO3) per County requirements. The test results indicated that DBCP was non-detectable (ND) and nitrate was found at 10 mg/1-NO3(2.2 mg/L-N). The result of the nitrate test indicates the ground water is below the maximum,contaminate level set by the United States Environmental Protection Agency of 45 mg/L as NO3(10 mg/L-N). The presence of nitrates and DBCP are not uncommon in shallow ground-water aquifers in San Joaquin County and other parts of the Central Valley. Nitrate in ground water occurs as a result of the application of fertilizers, livestock waste, and untreated septic tank waste. Nitrate is mobile and often accumulates in the shallow ground-water zones. =pERS 1. Assoc.