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Soil Suitability and Nitrate Loading Evaluation CTE Job # 25-0726G <br />Custom Home <br />5388 Fig Road <br />Manteca, California <br />Mav 18, 2020 Paae 3 of 9 <br />Based on San Joaquin County Environmental Health Department permit records search, the subject <br />parcel has an existing well which is 160 feet deep, has a surface seal at 100 feet deep and the final <br />inspection occurred on 12/10/10. No problems with the operation of the well have been reported <br />since the time of well inspection. <br />The OWTS for the existing home is indicated to include two 80 ft leach lines installed on <br />05/22/2013. County records do not indicate problems have occurred regarding the existing OWTS, <br />although, records show the original septic tank and leach fields installed on 08/02/1979 were <br />destroyed and replaced with the new OWTS system. The septic system and leach fields appear to <br />be a mounded system located behind/ southwest of the existing home. The absorption field <br />appears to have been established within the raised building pad, which consists of fill placed to <br />approximately 4 feet above original groundsurface. <br />The following San Joaquin County permit records were available for other surrounding residences <br />along Sedan Avenue; <br />• At 5350 Fig Road (APN: 226-050-01), a permit was obtained in 1988 for a new well and <br />1989 for new septic and leaches lines. <br />• At 5451 Fig Road (APN: 226-030-17), a permit was obtained in 1987 for a septic tank and <br />leach field and a new well, and in 1994 a permit was obtained for a well replacement <br />• At 5440 Fig Road (APN: 226-050-03), a permit was obtained in 1974 for a new septic tank <br />and leach field and a new well <br />5.0 FIELD INVESTIGATION <br />A preliminary field investigation, conducted on January 13, 2020, included site reconnaissance, <br />mapping of surficial site deposits, and the excavation of one percolation test hole (designated "P- <br />P) to a maximum depth of 36 inches. Percolation test holes logs, percolation data, and test results <br />are attached as Appendix -A. The percolation test locations are shown on the "Exploration Map", <br />attached as Figure -2. <br />VCAL,rsK— <br />