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<br />SECTION I~I
<br />PAGe
<br />DATE 2 I Jul. 1 0
<br />,,1 W Q a
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<br />UNIT ',"'OJ~CT 0& LOCA.TlO,,",
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<br />
<br />Continued
<br />
<br />YEAR 1897 (cont'd)
<br />1 Jlin. (From "City Engineer's Report, pp 79-95 and inserts: (cont'd)
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<br />TAB. REf.
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<br />1
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<br />"CENTERVILLE LAKE WELLS.
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<br />0,
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<br />
<br />"The elCpe,iment&l wells at Centerville lake delnOllBtrated that there
<br />"were two distinct lltr~ta from 'which flowing wells could be obtained, lind
<br />"that the head of water on each l!trata Wall practically ths S8IIle, rising to
<br />"about elevation 200, city base.
<br />"The first is a water-blilaring strata ot sand and, gravel, which Wall
<br />"struck at a depth from the surfacs of from fitty to eeventy-six feet, and
<br />"Wall from fifteen to twenty-two relit in dllPth.
<br />"The second water vein is in tbe sand rock, anqwas struck at a depth 10
<br />"of about 350 feet, the wells varying in depth from 302 to 523 feet.
<br />"The accompanying plan sholl'S the various strata through which the nlls
<br />"arll driven !Uld tho depth and dip of each strataj also. ths dspth of sach
<br />"well, The shallow 'Kells ars des1gnatsd by numerals, ths deep 1I'Ol1S b;y
<br />"lstters. '
<br />"Thll location ot ths wslls is along the shore of Centllrville lake for a
<br />"distance ot 2,260.fset.
<br />"'!'he 36-1och pipe froln the PUIllplog station is at about the center of thCl
<br />"line, and a 24-inch pipe branches out in each direction to connect up the
<br />"1fells. This pipe is reduced to a 20-inch, 16-inch, 14-inch and 12-inch 20
<br />"towards each end. The total length of the different kinds is as follows 1
<br />"Twenty-four inch, 766 te~tl 20-inch, 536 feetl l6-inch, 4/$ feetl 14-inch,
<br />-126 feetl l2-iru:h, ;;57 flil.et, 0;1' a total of 2,260 feet.
<br />"There are in all ten deep wells twelve inches in diameter which extend
<br />Nto ths Band rock. Total depth. 3,876.5 feet. Average depth, 387.7 feet.
<br />"There are also eighteen ahallow wells, eight inches in diameter, sunk to
<br />"thll sand and gr~vel etrata. , Total depth, 1,124.5 feet. Average' depth, .
<br />"62.5 feet. The ah&110w wella are all provided with a Cook stra1nar 01 an .
<br />"average length of twenty-feet.
<br />"~ach well has a separate ~Qnnection with the main pipe, 50 it i8 P08- ;;0
<br />-sible to connect up and teat anyone or any number of wells.
<br />NIn sinking the deep wells quite a diflerence was tound in the AJIlOunt
<br />"of flow. At well I. an excClllent now was struck at .. depth of eighty
<br />"feet, and it did not ~terially increase although eunk to a depth ot 344
<br />"feet. In PUIllping trom one we:J.l thll neighboring wells were affected. al-
<br />"though not in a l1ke \iegrlle.
<br />"We hlld expecteq 1.0 ebt.ain .trolD thee II wolle tromten to twdve million
<br />"gallons in twenty-tour hours, and the reaul.ts 1:nstarting the PUIllps show
<br />"tha~ 11" anall probably get about 10,000,000. We hope that after pumping
<br />,"to;!, ecme t.1me the wolle will clear up and give a little better floll', as 40
<br />"t~t ",foG our experienco at V~s lake. It. will take some time 1.0 make
<br />"the tillite. and find out how much we <lll'e getting from the shallow wells
<br />"and how 1ID1ch frolll t.~ deep wello, and it may be toupd lldvisable to sink
<br />"IIome ot the shallow nllll to a greater depth, but we are sure of a supply
<br />"greater than the daily consumption, and thCl character of the water can
<br />"hardly ~e aurpa~s.d. The cost ot the welle is spown in the table and the ,'/
<br />"lOCation and details of conatruction are ehewn in the accompan~g plana. ~~
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