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Ms. Ayala asked about Zone 7 injecting into the groundwater basin referred to in recent newspaper articles. Mr. Cummings replied that these articles discussed ASR wells that the Zone tested at one of its sites, which is the injection recovery of treated water. The water is actually injected in the winter time in the ground water basin and extracted later. We are actually injecting treated water versus percolating raw water through the stream beds. We tried it and found some complications with the extraction wells. We are not sure if this is a viable technology to use in this basin with the chemistry and geology that are present. Until we feel better about it, we are not relying on that particular technology and have stopped the use of an ASR well. At this time the plan is to recharge the ground water basin through the chain of lakes and through the stream beds, which we currently do. Ms. Ayala complimented Zone 7 in addressing the complaint process in the implementation plan and for putting into place a plan to handle complaints. She felt there were a large number of people who are not happy with the Zone 7 water. She asked about the number of wells they planned to add to the Bemai property in Pleasanton. Mr. Cununings said the well master plan identifies wells in the future and the Bernal property is a potential site. It depends upon how much well capacity is received from each well. There is no definitive number of wells that would be placed there. The well master plan looks at a well field and the geology of the field and identifies the amount of extraction that would be yielded from that well field without impacting and drawing it down from historic lows. This is part of the planning process and essentially identifies the wells that currently exist in the Mocho well field and Hopyard well field. Those two well fields have extraction wells in them and it would not be good practice to put additional wells in those areas. What is desired is to spread out and to not draw down the groundwater basin too deeply in any one area. Mr. Jon Marchand said he found in the past people could accomplish a lot when groups started working together. This Valley has a history of everybody being at loggerheads for generations. In his twenty plus years as a quality chemist he has found that most of the complaints he has received are when people notice a change in the water quality. People will be getting well water and have well water for years and when he receives a complaint, it is when the system changes and people start receiving Hetch Hetchy water. A lot of people keep saying they want Hetch Hetchy water because it is the best water in the State. However, when people will be get well water and then get Hetch Hetchy water, they call up and complain. When they go back to well water, they will complain again. A lot of the complaints received in the valley relate to chlorine odors. Zone 7 switched the surface water from chlorine to chloramines, so disinfection byproducts such as chlorophorme and THM would not be found. When chloramines come in contact with free chlorine they form di-chloramine and tri-chloramines. These form the swimming pool odor that people recognize. Zone 7 is doing the best it can to treat the water a certain way. When changes occur in the distribution system, there are complaints heard. This is outside the control of Zone 7 and Zone 7 will be doing Pleasanton City Council 14 03/04/03 Minutes