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SS9901-CS060629T H E - C I T Y O F COPPELL j Z�' _ p June 29, 2006 Erika Cooper, P.E. Project Manager Turner, Collie & Braden, Inc. 17300 Dallas Parkway, Suite 1010 Dallas, TX 75248 Re: Sandy Lake Road Lift Stations Improvements Project # SS 99 -01 Dear Ms. Cooper: This letter is written in response to your June 2 nd and June 21 S ` , 2006 letters concerning unit heaters at the Sandy Lake Rd. Lift Station. Based on your June 2nd letter, my understanding of the situation is that the construction plans showed 240 volt unit heaters to be installed, however the electrical drawings showed the power for the heaters to be 480 volt. There were five heaters originally designed for the Sandy Lake Rd. Lift Station. Because of the error in specifying 240 volt heaters for 480 volt electrical power, the City has reevaluated the need for five heaters at the Sandy Lake Rd. Lift Station. Based on that reevaluation, it is our opinion that the lift station can function properly with only two heaters. However, those two heaters do need to be reconfigured to 480 volt heaters. Your June 21" letter to Charles Ferrara, with Can-Fer Construction Company, requesting pricing for removing the three heaters that have already been installed, sending off and reconfiguring two heaters to be 480 volt and then reinstalling the two reconfigured heaters. Based on your initial investigation of the cost to reconfigure the heaters, it is conceivable that the overall cost to perform this change will be in the range of $4,000 to $5,000, if not more. Because this error came about as a result of the design, it is the City of Coppell's opinion that TC &B should be responsible for the additional cost to the city to remove, reconfigure and reinstall the heaters. Once a firm price has been received from Can -Fer Cnnstn,ction Company, we need to discuss TC &B's position on reimbursing the city for the cost. If you should have any questions please feel free to contact me at your convenience. Sincerely, Kenneth M. riffm P.E. Director of Engineering/Public Works Office 972/304 -3686 Fax 972/304 -7041 e -mail kgnffin @ci.coppell.tx.us cc: Rick O'dell, Construction Inspector 2555 PA R K WAY * P.O. © OX 9476 i CO PPE LL I X 7 �z0 1 9 * I E 1 9 72/4 0022 * FAX 972!303 3673 Turner Collie & Braden 17300 Dallas Parkway, Suite 1010, Dallas, Texas 75248 T 972 735 3000 F 972 735 3001 wwwtcb.aecom com June 21, 2006 Mr Charles Ferrara President Can -Fer Construction Company 11031 Grissom Lane Dallas, TX 75229 Subject: Sandy Lake Lift Station Unit Heaters Pricing Request Dear Mr Ferrara Please provide pricing information for the following items at the Sandy Lake Lift Station 1 Remove the three (3) 240 volt unit heaters that have been installed 2 Send two (2) of the 240 volt unit heaters to the heater manufacturer to be reconfigured to 480 volt units Turn the other three (3) heaters over to the City 3 Install the two (2) reconfigured unit heaters TCB has contacted Randy Wieker at Bartos Industries (214- 350 -6871 ext 124) to discuss the reconfiguration of the heaters Mr Wieker in turn contacted Indeeco (heater manufacturer) to discuss the cost for reconfiguration of the units According to Indeeco, the cost to reconfigure one heater (including freight to and from the factory) is approximately $1,600 Contact Mr Wieker to confirm the pricing and discuss the method for shipping the heaters to the Indeeco factory We will provide the submitted pricing information to the City for their review and approval Please feel free to contact me at 972 -735 -3056 if you have any questions regarding this request. Sincerely, Erika K. Cooper, P E Project Manager Mr Kenneth M Griffin, P E. — City of Coppell Mr Rick O'Dell — City of Coppell File JUN -02- 2006 11 2741 FROM- T -410 P 002/002 F -728 TCB I AECOM Turner Collie & Braden j,lf' 6311:_ F3'nr,3y 1J U June 2, 2006 Mr Rick O'Dell City of Coppell P O Box 9478 Coppell, TX 75019 Subject: Coppell Sandy Lake Wastewater Lift Station — Unit Heaters TCB Project No 52803718 Dear Mr O'Dell VIA FAX 972- 304 -3570 It has come to our attention that the unit heaters TCB specified for the Sandy Lake Lift Station are 240 volt (3 phase) units These heaters have been delivered to the contractor The electrical drawings show the power for these heaters coming from a 480 volt (3 phase) panel Obviously the heaters cannot be supplied from this panel We have reviewed the available power at the Sandy Lake Lift Station and there Is no 240 volt (3 phase) power available to serve these heaters. We have talked to the heater supplier and they are unable to exchange the 240 volt units for the 480 volt units or offer any sort of a refund because the 240 volt units were custom units and that design has been phased out and replaced with a new design However, the supplier has contacted the heater manufacturer and the 240 volt heaters can be reconfigured to 480 volt units This will require shipping the heaters to the factory and some labor for a total cost of approximately $8,000 for the five heaters The turnaround time for this would be approximately one month We also looked at the possibility of purchasing new heaters, however, the cost for new heaters would be about $15 000 to $16,000 and the lead time on the new heaters is also approximately one month Please feel free to contact me at 972 -735 -3056 if you have any questions or need any additional Information Once you have had an opportunity to review this information, we can discuss how we need to proceed on this matter Sincerely, Erika K Coi�per, f' E Project Manager ekc L:, i_ Tz — Ld Mr Ken Griffin, City of Coppell Mr Glenn Hollowell, City of Coppell