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Because of the percolation rate between 5.0 and 30.0 min/in encountered in the <br /> northern test hole (P1), the San Joaquin County Environmental Health Department will <br /> require an 8-foot separation from the bottom of the dispersal system to ground water, <br /> unless mitigated by system design or enhancement. Because of the percolation rate <br /> between 1.0 and 5.0 min/in encountered in the southern test hole (P2), the San Joaquin <br /> County Environmental Health Department will require a 20-foot separation from the <br /> bottom of the dispersal system to ground water, unless mitigated by system design or <br /> enhancement. Given the depth to ground water of approximately 43 to 51 feet beneath <br /> the Site, no modifications to standard, shallow septic systems should be necessary. <br /> Discussion of Septic System Sizing <br /> Septic system construction utilizing leach lines, leach lines with sumps, or filter beds <br /> should follow the San Joaquin County On-Site Wastewater Treatment Systems <br /> Standards (2017) where applicable. No new construction is anticipated. <br /> LOGE 2111 Page 8 <br />