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Mr. Trinkle said that if the entire section were to be developed, that would make a public water system feasible; however, it is not feasible for 13 homes. Mr. Curran commented that many people will be coming to this area from the Bay Area and they will have high expectations on water. Buyers of the lots who will be living there have to have their interests considered. Mr. Trinkle commented on drainage in the area. He said that the drainage is exceptionally fine. Mr. Gau noted that he did not believe that Banta-Carbona. Irrigation District would approve terminal drainage to their facility. There was continued discussion about the wells. In answer to a question, Mr. Trinkle said that wells in the area are drilled to a 206 foot depth with a solid casing and sealed to 100 feet. Dave Olmstead, 7549 Linne Road, Tracy, said he is not the applicant but he has a proposed subdivision about 1/4 mile from this particular project which will be before the Planning Commission some time in the future. He said that any of the conditions placed on this subdivision could affect his project. Regarding water, he said that if they went to a public water system, they would be allowed 100 parts per billion (ppb) of chloroform. If they went to a private water system, they would be allowed 0.19 ppb. He said the aquifers are drawing at about 200' on the individual wells as well as, possibly, the public wells. He said he understood that 100 ppb is not a health hazard. Mr. Olmstead said that any large public water system uses chlorine for purifying the water. This produces chloroform. A public water system will not protect the people any more than would individual wells. He asked that the Commission recommend rewording of Recommended Conditions Nos. 2(d) and 3(c). This would allow indivi- dual wells and provide that the contaminant level on the individual wells meet Title 22; and that the chloroform level in those wells not exceed 100 ppb. Mr. Olmstead went on to say that it would not be economically feasible to put a public water system in that area. He also said that the area has outstanding drainage. He said he did not think that the size of the required drainage pond is excessive. He said that Condition 3(c) should be modified to the wording of Board Order 76-4201. He said that his suggested wording on Condition Nos. 2(d) and 3(c) is as follows: Individual wells are acceptable providing that the con- taminant level of the constituents does not exceed Title 22, and that the chloroform does not exceed 100 ppb. The test well would be tested before the subdivision is commenced. It would not be monitored after the subdivision is put in. In answer to a question as to what would happen if Title 22 could not be met, Mr. Olmstead said that a system can be put in for purifying the cold water within the house. PC: 9/10/87 -3- MINUTES