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Table 3. Laboratory Test Results (Brea Pond - Soil Boring No. 5) 1J Soil Boring 5 5 5 5 5 5 Analytical EPA Depth Interval J (feet) 5.5-6.0 16.5-11.0 15.5-16.0 30.5-31.0 50.5-51.0 70.5-71.0 Detection Test Sample Number 501-0578 501-0579 501-0580 501-0581 501-0582 501-0583 Units Limit J Method 1,2 - DCP ND 9.6 30 23 18 11 Ng/kg 5 EPA 8010 Chloroform ND 61 16 ND ND ND µg/kg 5 EPA 8010 Nitrates (NO3) J 400 360 1200 580 140 130 mg/kg 1.0 EPA 300 Nitrogen as NO3 90 81 270 131 32 29 mg/kg 0.2 Nitrogen as TKN 710 1400 1500 290 200 1600 mg/kg 0.2 EPA 351.3 Total Nitrogen 800 1481 1770 421 232 1629 mg/kg 0.2 J The laboratory test results tabulated herein include all laboratory test results above detection limits. Soil samples were tested for a broad spectrum of chemical parameters. The complete list of the pesticides for which tests were conducted is included in Appendix A. Laboratory Test Results and Chain-of-Custody Forms. J Sample boring locations are shown on Figure 3. Sampling intervals are given in feet, and based on depth below ground surface (bgs). J Pesticide analytical results and detection limits are given in Ng/kg (ppb). Nitrogen results are given in mg/kg (ppm). ND signifies a parameter that has not be detected. NE signifies a maximum contaminant level (MCL) that has not been established. J Nitrate results were converted to nitrogen-as-nitrate results (N-NO3)by multiplying each reported nitrate result by 0.225, the stoichiometric conversion factor for the nitrate ion.