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The sidewalls of the shallow boring were scored with a pry-bar and the loose material removed. Two inches of fine gravel was placed at the bottom and a three-inch perforated PVC pipe was inserted into both test borings. The borings were then pre-saturated with 18 inches of clear water. (§6.4�On January 22, 2015, 0800 hrs, percolation testing commenced. There was no standing water after the 24-hour soak period in the perc test borings due to the sandy-silty type soil, as illustrated in Table 1 below. Consequently, EHD Perc Test Procedure#2 was conducted for both test borings. The last half hour of the test was witnessed by Ted Tasiopoulos, R.E.H.S. of the San Joaquin County Environmental Health Department. The maximum acceptable perc rate is 60 min/in for the shallow depth perc test borings. Therefore, the perc tests passed by a factor of 6. (§ 5.4 and 6.8) The following Table illustrates the proposed Parcel number, septic system structure to be installed based on the depth of the passing perc rate, proposed acreage, post soak period status and perc test results for the respective perc test. TABLE 1 PERCOLATION TEST RESULTS AND RELATED DATA PROPOSED PARCFI. PROPOSED PERC TEST DEPTHS POST SOAK PERC TEST POTENTIAL SEP]1( ACREAGE PERIOD RESULTS SYSTEM STRUM R I. STATUS Parcel A 2.0±Acres 42 INCHES No Standing 10. In%in 100 Foot Leachlines Per Water in Hole ASS, Bedroom. Parcel B 42.2 f Acres 42 INCHES No Standing A min i 100 Foot Leachlines Per Water in Hole I PASSING Bedroom. (§ 4.0) LOCAL GROUNDWATER AND SURFACE WATER INFORMATION (§ 4.1) The 2014 Lines of Equal Depth Map published by the San Joaquin County Flood Control illustrates groundwater depths throughout the County. The map shows the groundwater depth in the subject property area to be approximately 15 ft below grade. The 2014 Lines of Equal Elevation Map illustrates the groundwater directional flow in a northeasterly direction toward the San Joaquin River. The property is in Flood Zone C and not subject to 100-year flooding. (§ 4.3, 4.4,4.5,4.6) As noted there no)esubjsite well on the property. It is against EHD policy to sample nearby wells not associated wi tect property for testing purposes. (§ 4.2) Considering the area has been intensely farmed for the past several decades, it may be possible for there to be elevated nitrate concentrations in the underlying aquifers. Page-3-