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3.7 Description of Proposed or Expected Maximum (including second unit dwellings) septic tank usage on site. The three parcels will have only primary residences, no second unit dwellings are planned. Thus only one septic system per parcel is anticipated at this time. Per County ordinances, each parcel on this map is entitled to one primary residence and one second unit dwelling. Therefore this project could ultimately have 6 homes on the three proposed parcels. 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 130 feet according to the map of "Lines of Equal Depth to Groundwater" published Spring, 1999, by the San Joaquin County Flood Control and Water Conservation District. 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 is deemed low due to the depths involved. Insecticides, pesticides, and fertilizers typically do not impact groundwater at these depths, however, as with any agricultural area, there is always potential for contamination due to chemicals used in the farming operation. 4.3 Description of location, type and construction of well and location where water sample(s) were obtained: Water samples were not obtained due to the fact the agriculture well and pump have been shut down during the dormant season and there is no other source of water to be sampled on site. 4.4 Description of constituents being tested for in the water sample: The constituents typically tested are nitrates and dibromochloropropane (DBCP). No results are available at this time. 4.5 Description of how sample was obtained, handled, stored, and transported to the lab: Not applicable. 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: Not applicable. 5.0 SOIL PROFILE INFORMATION SECTION: 5.1 Site map showing location, with dimensions, of the soil profile pit on the parcel: See Appendix. 5.2 Description of soil profile pit including depth and dimensions: The shallow test holes were prepared per County Standards. The holes were excavated to a depth of approximately 36 inches and 8 inches in diameter. They were backfilled with 1-2 inches of "pea gravel." r\0471\Roil Rrnnrr