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3.6 Discussion of general area septic tank repair history: There is no history of any repairs to septic tanks in this area. There are no incidents to report. (See Appendix). 3.7 Description of proposed or expected maximum (including second unit dwellings) septic tank usage on site: The purpose of this project is to create a 55-lot subdivision of one acre (minimum) lots.Based on County standards and nitrate loading,it is unlikely that a lot could sustain a second dwelling, within the same lot.However,if a landowner ever proposes a second unit,another study would be required to demonstrate more than a single dwelling can be built on a 1 acre-lot. See Section 1.1. "Description of Proposed Development" for additional information. 4.0 GROUNDWATER INFORMATION SECTION 4.1 Description of the depth and gradient of groundwater in the general area: The depth to ground water in this area is approximately 90 feet according to the map of"Lines of Equal Depth to Groundwater" published by the "San Joaquin County Flood and Water Conservation District" Groundwater Report Spring 2018. The gradient descends from east to west. 4.2 Description/discussion of any existing and/or potential groundwater contamination issues in the general location of the site: The concerns for groundwater contamination in this area are deemed moderately low due to the depths involved. Insecticides, pesticides, and fertilizers typically do not significantly impact groundwater at these depths. However, as with any agricultural area,there is always a potential for contamination due to chemicals used in the farming operation. 4.3 Description of location (address/APN), type and construction of well and location (well head/kitchen tap)where water sample(s)were obtained: A water sample was taken from a well from the subject parcel, located at 26850 N. Lower Sacramento Road on July 1, 2019 by Miguel Castaneda of Eaton Pumps. 4.4. Description of constituents being tested for in the water sample: The samples were being tested for nitrates and DBCP. 4.5 Description of how sample was obtained, handled, stored, and transported to the lab: The water sample was taken from a well located at 26850 N. Lower Sacramento Road, Acampo. The samples were taken by Miguel Castaneda of Eaton Pumps, and driven directly to California Laboratory Services. The sample was taken and handled in accordance with California Laboratory Services. The results from the test can be found in the Appendix. 4.6 Complete Chain of Custody document, including printed and signed name of third party sampler, condition of sample and date and time the sample was submitted to the lab. For Laboratory samplers, complete laboratory report to include the above noted information: The complete chain of custody document is located in the Appendix. 5.0 SOIL PROFILE INFORMATION SECTION 5.1 Site map showing the location, with dimensions, of the soil profiled pit on the parcel. See Appendix. 2