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<br />elevation of the embankment and. roa.dwdY surrounding ",incisor <br />Lake. Since this ponci.ing area has no:: yet been developed, <br />we recommend that. the area shou.ld b'? filled during development <br />so t.hat the stormwater will drain e03.S:: tClwa.rd t:he Dayton <br />Detention Pond. <br /> <br />Drainage Area No. 4 south of Mississippi Avenue also drains <br />naturally tmvard the north.. Since most of this a.rea ha~, not <br />been developed, we recommend that. the future dev,,10pmen1: <br />should provide drainage tmvard '::he we;;.t so that: t..he storm- <br />water from this area will also drain into the Dayton D"1:ention <br />Pond. <br /> <br />A high groundwater table was reported .to be a problen in <br />this general area. In order to avoid a permanent. pool at <br />the proposed Dayton Detention Pond, fiv" observation holes <br />werE, drilled by Chen and Associate;;, In::o., DenvElr, at the <br />proposed pond site for the purpose of monitoring the groundwater <br />table. The locations of the five obs,~rvation holes are <br />shown on Master Plan Drawinq No.. 3. ',he major sourCE'S of <br />.the groundwater are Windsor J.ake and thEl HighlinEl Canal. <br />Since the variation in the water surface elevation in Windsor <br />LakE' is somewhat limited, l:he grou.ndwater table is cont.rolled <br />mair,ly by the Highline Canal. Two sets of observation data <br />were taken by FairJUount Cemetery's personnel and one sel: was <br />takE,n by Ch,~n and AssociatEls at these fi.ve observation holes. <br />Two sets of data were obtained vthen thE' Highline Canal vras <br />dry, and another set was obtained four days after water stopped <br />flowing in 1:he Canal (Septeml,er 1 r 1976). T:'le approximate <br />groundwater depths are lisl:ed in the table below. <br /> <br />TABl,E 4 <br /> <br />(1) <br />Groundwal:er Dep-ths at ProposE,d Dil'{ton DetE"ntion Pond <br /> <br />Hole No. <br /> <br />(2) <br />~Tuly 21, 1976 <br /> <br />(3) <br />JuLL~~~L}_9 7 6 __ <br /> <br />Pi <br />~~~~nber 1, 1976 <br /> <br />1 <br /> <br />3'-5" <br /> <br />3' '~l" <br /> <br />2: f ....911 <br /> <br />2 <br /> <br />8'-10" <br /> <br />Dr,' <br /> <br />Dry <br /> <br />3 <br /> <br />6'-4" <br /> <br />:5 ~ .- g" <br /> <br />,j r '-11" <br /> <br />4 <br /> <br />Dry <br /> <br />Ilt-'6H <br /> <br />12'-0" <br /> <br />5 <br /> <br />7t_!)lt <br /> <br />6 f '~9 If <br /> <br />6' ,.,0" <br /> <br />(1) <br />(2)see Sheet No.3.. Volume 11, for locations <br />(3) r.1easured by Fairmount Cemetery <br />Measured by Chen and Associat.es, Tr..c.. <br /> <br />of o.bseJcvation holes. <br /> <br />-21- <br />