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Soil Suitability&Nitrate Loading Evaluation CTE Job #25-1084G New Septic Leech Lines 21850 East Liberty Rd Clements, California January 30, 2021 Page 2 of 9 3.0 PRESENT, PAST AND PROPOSED USE The project site is currently in use as a convenience store as well as a modular home in the West side and a self-storage yard in the East side. Based on the historic aerial photography (Google Earth Pro 7.3.2.5776, Accessed 1/14/21) and USGS topographic mapping, no other previous structures are observed to have been present on the subject site from 1993 to present. In addition, the project site appears to have been in use as a convenience store and storage yard during the same time period. The proposed leech lines are shown on a "Site Plan" for "Fuel Island and Tanks". The proposed wastewater disposal system is shown to include a septic tank (P & L Concrete Box with infiltrator lines) and a proposed leach field located in front (West) of the convenience store. A well is shown behind the modular home at the South side of the property. Information included herein is provided for use in the design of the proposed onsite wastewater treatment system(OWTS). 4.0 SEPTIC PERMITS AND PERFORMANCE The project is located within the City of Clements planning area; however, sewer, water, and storm drain services are not available in the vicinity of the proposed project. Based on San Joaquin County Environmental Health Department permit records search, the subject parcel has no available records for wells on site. Civil drawings provided does show an existing onsite well. The parcel does however have permits on record for a septic and leach line on site. • In 2005 a permit was obtained for a septic and leach line system on site, The following San Joaquin County permit records were available for other surrounding properties along East Liberty Road; • At 22077 East Liberty Road (APN: 021-200-04), a permit was obtained in 2003 for a new well. TCZQIF