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/3.6 Discussion of General Area Septic Tank Repair History: Repair history of the septic <br /> tanks in this area reveals that the leach lines and seepage pits have resulted in consistent <br /> performance. There has been only one repair to the existing system. (See Appendix) <br /> �3.7 Description of Proposed or Expected Maximum (including second unit dwellings) <br /> septic tank usage on site. There are no plans for any more dwellings at this time. <br /> 4.0 GROUNDWATER INFORMATION SECTION: <br /> v4.1 Description of the depth and gradient of groundwater in the general area: The depth <br /> to ground water in this area is approximately 110 feet according to the map of "Lines of <br /> Equal Depth to Groundwater" published Spring, 1999, by the San Joaquin County Flood <br /> Control and Water Conservation District. The gradient descends from east to west. <br /> V 4.2 Description/Discussion of any existing and/or potential groundwater contamination <br /> issues in the general location of the site: The concerns for groundwater contamination in <br /> this area are deemed low due to the depths involved. Insecticides, pesticides, and <br /> fertilizers typically do not impact groundwater at these depths, however, as with any <br /> agricultural area, there is always potential for contamination due to chemicals used in the <br /> farming operation. <br /> ✓4.3 Description of location, type and construction of well and location where water <br /> sample(s) were obtained: Water samples were taken from a faucet at the well located <br /> at 16318 North Jack Tone Road, Lodi, California. <br /> ✓4.4 Description of constituents being tested for in the water sample: The water samples <br /> are being tested for nitrates and DBCP. <br /> v/4.5 Description of how sample was obtained, handled, stored, and transported to the lab: <br /> The water samples were obtained from the spigot at the well located at 16318 North Jack <br /> Tone Road. The samples were taken by Jake Handel of Dillon & Murphy, and driven <br /> directly to Precision Enviro-Tech. The samples were taken and handled in accordance with <br /> Precision Enviro-Tech requirements. The results from the test can be found in the <br /> Appendix. <br /> 4.6 Complete Chain of Custody document, including printed and signed name of third <br /> party sampler, condition of sample and date and time the sample was submitted to the <br /> lab. For Laboratory samplers, complete laboratory report to include the above noted <br /> information: The complete chain of custody document is located in the Appendix. <br /> 2 <br />