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FFnd ation test was done at the ground surface, which represents the soil-effluent interface of water mound osal system. As the soil became saturated, infiltration slow by ately a-half over a duration of the test. This is illustrated on the Infiltration Test ' Appendix !Test results indicate an infiltration rate comparable to the observedn r ouble ring infiltration test results are summarized below: TABLE 3 INFILTRATION TEST RESULTS INFILTRATION RATE IN CM/11R,CM/SEC,MINAN AND APPLICATION RATE IN GALLONS/FT'/DAY 12.24 cm/hr,0.0034 cm/sec, 12.5 min/in,0.757 gallons/ft /day Application Ram adapted from California State Water Resources Control Board Guidelines for the Design ofSeemge Systems and is based on the Pen Race. D. GROUNDWATER INFORMATION NLS§(2�, SS§ .1, NL 2.1. ,Groundwater depths and elevations throughout San Joaquin Coune lu ated on maps published by the County Flood Control and Water Conservation District. However, due to the high degree of variability in groundwater elevations in the Tracy area, groundwater lines of equal depth and equal elevation are not drawn for this area. The last map denoting lines of equal elevation for the Tracy area was published in 1992, and show the general groundwater flow to be in a northeasterly direction, toward the San Joaquin River. This is regarded as the generalized groundwater directional flow, primarily based on highly accurate groundwater studies at the Tracy Defense Depot. The referenced domestic well,which is approximately 250 feet from the proposed mound disposal area,was sounded with the standing water level measured at four feet. During the drilling of the 40-inch deep perc test boring, no capillary fringe water was encountered. A geotechnical investigation conducted by the firm Construction Testing and Engineering, Inc. measured the groundwater table to be at seven feet in October 2005 in the proposed locatio f the new Church building. This groundwater depth measurement occurred after irrigation season, o the potential may exist for the water table to rise higher during the irrigation ason. A wate table depth of seven feet would preclude the installation of a conventional, or semi-co do leachfield system. This is due to the required separation distance of five feet that must be maintained between the soil-effluent interface and the highest depth to the groundwater table. Unfortunately, no well log was found in EHD files for the referenced domestic well _o-underlying lithology could not be determined. In addition,the well had no electricity to it, save 1 water could not be sampled and tested to determine nitrate loading impacts from historical land uses, or to us in the nitrate loading calculations. 6 Chesney Consulting