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City of Orono <br />Attnt John Gerhardson <br />Page 2 <br />September 6, 1990 <br />Previous televising showed the well consists of a round drill hole from the <br />bottom of the casing at 312 feet to approximately 360-363 feet where the <br />cavity begins. Prior to test pumping the bottom of the well was approximately <br />376 feet and after test pumping the well filled to 366 feet. Because the fine <br />sand is only 3-6 below the bore hole, it is probably being picked up when the <br />well is pumped. <br />In our opinion the well is not usable as a reliable supply in its present <br />condition. We recommend that further development and bailing be undertaken to <br />enlarge and stabilize the sandstone cavity. It is not unusual that wells in <br />loosely cemented, fine sandstone require additional development during <br />construction or at a future date. Well No. 3 is in this type of material. <br />Approximately $71,500 has been spent on the project of which $37,000 was for <br />development. It is estimate I that additional development costs could run as <br />high as $30,500. A change order for that amount is enclosed for your <br />consideration. <br />Yours very, truly, <br />.'*r <br />BONESTROtf. ROSENE, ANDERLIK & ASSOCIATES, INC. <br />■.Uchard W. Foster <br />KWF:lk <br />ltr3