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25 <br /> 1 Slide #30 <br /> Community Well System <br /> Studied <br /> • Community Well has been permitted by <br /> Orange County <br /> • Sufficient water capacity exists to serve the <br /> planned 43-home community <br /> Raw data analysis after monitoring two(2) <br /> nearby wells shows that even significant <br /> withdrawals from the proposed community <br /> well has no impacts shallow or deep nearby <br /> wells <br /> Roox <br /> thschild <br /> 2 <br /> 3 Beth Trahos said they'd heard concerns about the impacts on wells, so they had a study <br /> 4 done on capacity analysis and the impact on adjacent wells. <br /> 5 Ward Marotti said the study they performed was more in depth than what would typically <br /> 6 be done for projects that haven't been rezoned yet. He said there were no measurable impacts <br /> 7 to adjacent wells resulting from full drawdown of the proposed well, and at almost twice the <br /> 8 maximum capacity would be for serving all of the homes at their maximum capacity at one time. <br /> 9 He said they documented variances under normal conditions at adjacent wells, then continued to <br /> 10 collect data from those wells during maximum drawdown of the proposed well. <br /> 11 Beth Trahos said the data was available in the full agenda packet. <br /> 12 Commissioner McKee asked how long the drawdown was. <br /> 13 Ward Marotti said it was 24 hours total, and the steady state was 1 hour, which is typical <br /> 14 protocol. He defined steady state as the pumping out of water to a point where it does not change <br /> 15 the water level within the well being tested. <br /> 16 Commissioner McKee said that he has multiple wells on his property and they have all <br /> 17 had anomalies going on at times. He said he is concerned about anomalies on that much draw <br /> 18 down on surrounding properties. <br /> 19 Chair Bedford asked for an explanation of a statement in the agenda packet, "It is <br /> 20 important to mention that no information was provided for the past, well, installation attempts at <br /> 21 the site that showed no groundwater yield." <br /> 22 Donna Browder from Forestar said they drilled the first well 1,001 feet and got no water. <br /> 23 She said they drilled a second well 600 feet down and hit 90+ gallons per minute. She said they <br /> 24 reason they studied the wells before and after the drawdown was to measure the anomalies that <br /> 25 occurred daily on those wells. She said the drawdown lasted 24 hours, but they studied the wells <br /> 26 two weeks beforehand to find anomalies. <br /> 27 Ward Marotti said they collected several weeks of ambient data prior to the drawdown, <br /> 28 and then several weeks of ambient post draw down, as well as doing the initial drill testing almost <br /> 29 six months prior. He said they had very similar results with capacity. <br />