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3k Approve Estimate from NSP to provide looped undergound service to well houses off West 77th St and Hwy 101 1 3,t. CITYOF .......,,,,,,,■...a. I 1 t .ii 1 CHANHASSEN 690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 (612) 937 -1900 • FAX (612) 937 -5739 MEMORANDUM 1 TO: Don Ashworth, City Manager I FROM: Charles Folch, City Engineer DATE: May 5, 1993 I SUBJ: Approve Cost Estimate from NSP to Provide Looped (Secondary) Underground Service to the Well Houses Located off of West 77th Street and Trunk Highway 101- Project No. 88 -22B I During a recent preconstruction conference between City staff, the project engineer, the contractor and utility companies involved in the Trunk Highway 101 North Leg Improvement Project No. 88 -22B, some concern was I raised for protecting the electrical service serving the two City wells located on West 77th Street at Trunk Highway 101 during the construction of this improvement project. These two wells have the highest pumping capacity capabilities and are relied upon very heavily during the summer to maintain water pressure and storage of the City's system. Should this power service be accidentally cut during construction, NSP has informed me I that the power outage would likely last a minimum of 4 hours before needed repairs could be made. This raises some concern for City staff. Given the number of potential line conflicts and that this service feed line is located along a large portion of the Trunk Highway 101 improvement project, there is really no way to guarantee that I an accidental line cut will not occur. NSP has submitted a cost estimate for providing a looped (secondary) underground service system to the well houses at an estimated cost of $5,665.70. In the event that an outage would occur on the primary service line, I the secondary looped system would then provide the backup service needed to maintain power to these wells. Given the amount of potential conflicts and involvement with the existing primary service line on the Trunk U Highway 101 North Leg improvement project, it would seem wise to install a looped system to provide backup service which would remain as a permanent looped system in the future. It is therefore recommended that the cost proposal from NSP to provide a looped underground system to the two City wells located on West 77th 1 Street and Trunk Highway 101 in the amount of $5,665.70 be approved. ktm 1 Attachments: 1. Location map. 2. Work cost estimate. I c: Dave Hempel, Assistant City Engineer Jerry Boucher, Utility Superintendent Larry Fortun, NSP I Jon Horn, BRW Greg Roy, BRW 1 IV fwi PRINTED ON RECYCLED PAPER r - 7-7/, ----� -te/^, - N.L.....1 ' 01" ' illi a ,� �arvs ,� 1 TWINMAPLE ow" jog IA \` . inn 1 LANE iiiiiMN\ . .'��. ` BASSWOOD LE • ;\ CIRC fix: :. 44 r "A 0111 Il ill AN 0 - E Ail ' . NM 1 ' ‘ MOM 4 1 ' I I 1111:1; I IT ' $ ‘,.. \ ., . ii . ji iin.-411. \.;‘,, NO SCALE 110E O i ...)-))\'‘ a illki Ad Eh , i ... - . . _ In imi fAti w ' MIN .•! - 11111LIM wog,„,,A, I • r 1 W 4, /op._ , . jp E .i► t , , r te v 0 R .. 111 ."' P a , MI ow' ■© ?4 I INcZ (J 1 111 i11���i.l- j , Nu J = 4 - matzu 1k, i x � wo c) �! AI 1. . =c) 5 - , 8' w 7am II cr . Of , 'I I 1 lir - - 1 ' . . . : .:: 5 1 7;40100 . 1140 • _ ■I ' LOCATION ; OC ION MAP it- MAY— S— �+3 W E=r 14 :01 P. ell 'STATEMENT OF WORK REQUESTED► FORM 17- 7012ft =.811 " "x 0j ^' ` NORTHERN STATES POWER COMPANY 1 1993 WORK REQUESTED BY 0 ,.\----, c.,, ,, k,. cr5..f _ WORK TO BE ATt 4 1 t� ADDRESS , ' CONSISTING OF 1 1 ?-.04V rb tips 6r-. (-41 �.VI L•D Viz 4 S `-i .5 r . 7;2) "" - r w U CZ) u ►- kic_. -rKt. A vc c . 1 k , .r., 1 1�t 1 "".. L .-- 4-a ila r HESS `ros......t„t...c�-t. G 3 a * t, r 3 alb l.S r►.I,'p E: - 1 1 1 1 The facilities installed or removed by the Company shall be the property of the Company and any payment by customer I shall not entitle customer to any ownership interest or right therein. The undersigned hereby requests and authorizes the NORTHERN STATES POWER COMPANY to do the work il described above, and in consideration thereof, agrees to pay yt,...lda s. ;stn 1 -k i t t (A t 1 Rkrei'icio- ($ 4 5 4 (.C...6 .7e 1, in accordance with the following terms: c.. .-- , oP 1 kz. -- ---- , Credit Approval Receipt of the above amount hereby acknowledged on behalf of NSP by I NORTHERN STATES POWER COMPANY Customer C...- ,p 1� u 144•31Eell By ..� o NSP Representative .1- +r. T' rJ Division A 1�.. ir_.�. ' �,. NS P roj. Na. � 141 - 0-kW 1aA.` Const. $_ Rem. $_ Maint. $ . ..,._._. ()per, $ .... _._. Transf. $,.,,.. - Total $ 1 ORIGINAL - OJVISIONACCOUNTING COPY - Ct MTntut a W �•�,,,, _ ._._