CCMIN061891 - Laserfiche WebLink

247 groundwater basin since 1988. She stated that Zone 7 Staff has estimated that if the Valley relies on the groundwater basin to the same extent that it will be pumped out this year, with no State delivery, the groundwater supply would allow a total growth to the Valley of about 4%, or 1.3% for each of the three cities, over a period of 4.9 years. Usable groundwater would be depleted by then if no natural or artificial recharge is done during that period. She urged Council to adopt a moratorium on development until the State is able to deliver water pursuant to its contract. Mr. Tarver inquired if Zone 7 has done any studies on the environmental consequences of pumping so much water out of the groundwater basin. Ms. Tracy said no. She indicated that Zone 7 will consider on Wednesday night a Negative Declaration for two new wells and pumps that are proposed to go in south of 1-580 between Hopyard Road and E1 Charro Road, which may have the following significant environmental impacts: (1) the possibility of subsidence; (2) their effect on other local groundwater wells, both private and public; and (3) the short- and long-term impacts on water quality resulting from the absence of the hydraulic barrier to hold the poorer quality of water out in fringe basins. Mr. Mercer asked Ms. Tracy if she would not support pumping groundwater for Zone 7 constituents unless the basin is recharged or kept at the same level. Ms. Tracy replied that the purpose of the establishment of Zone 7 in 1960 was to replenish the groundwater basin. She emphasized the importance of establishing a balance and of using the water only if there is a sustainable supply and if it can be replenished. She stated that the water is there to be used, if necessary, but that it should not be overused. Ms. Mohr commented that 50% of the State's population growth is from the birth rate and 50% is from immigration. She pointed out that houses do not use water; people do. The issue is population, not construction; and houses need to be built for the people who are coming in. She stated that what is important is to come up with ways of reclaiming water and developing a self- sustained recycling system. Mr. Tarver stated that every agency that contracts with the State has to hold the State responsible for meeting its obligation in one form or another. He inquired if Zone 7 can do anything about the State having allocated 1½ times its supply to agencies like Zone 7. - 7 - 6-18-91