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Home My WebLink About11 REPAIR WELL #4 04-15-08 AGENDA REPORT MEETING DATE: APRIL 15, 2008 TO: WILLIAM A. HUSTON, CITY MANAGER FROM: PUBLIC WORKS DEPARTMENT/WATER SERVICES DIVISION SUBJECT: EMERGENCY REPAIR OF WELL NO. 4 AT THE 17TH STREET DESALTER SUMMARY Well No. 4 at the 17th Street Desalter recently experienced a mechanical failure. Detailed inspection has determined that the well pump and motor need to be replaced. It is critical that Well No. 4 be returned to service as quickly as possible to meet operational, emergency and fire flow requirements within the City of Tustin's water service area. Resolution No. 08-27 ratifies the Public Works Department's decision to dispense with regular public works bidding requirements and pursue emergency repairs to Well No. 4. RECOMMENDATION It is recommended that the City Council: 1) Adopt Resolution No. 08-27 by four-fifths vote of its members declaring that the public interest and necessity demand the immediate expenditure of public money to repair Well No. 4 to safeguard life, health and property; and 2) Authorize the $77,115.28 for the replacement of a pump and well motor from the Water Division's FY 2007-08 Operations Budget. FISCAL IMPACT There is an adequate fund balance in the Water Division's Operations Budget for FY 2007/2008 to cover this unexpected expense of $77,115.28. This repair expense may be partially reimbursed to the City through the existing Maintenance Agreement with Metropolitan Water District of Southern California governing the 17th Street Desalter Plant along with submittal of a claim to the City's insurance carrier for mechanical equipment failure. BACKGROUND Well No. 4 at the 17th Street Desalter unexpectedly experienced a mechanical failure, requiring the City to make up lost groundwater production through purchases of imported water from East Orange County Water District. Well No. 4 is the City's largest well, with a design production rate of 2,200 gallons per minute (gpm). The City retained a well contractor, General Pump Company, to remove the pump and motor and determine what caused the mechanical failure. General Pump Company found extensive deterioration of bronze-cast well components, and attributes this problem to the quality of the groundwater pumped by Well No. 4. Note that the well pump and motor for Well No. 4 operate completely submerged in water on a 24/7/365 basis. Additionally, the water treated by 17tH Street Plant contains nitrates, perchlorates and other chemical constituents which may have corrosive effects on well equipment over time. A stainless steel replacement pump will be specified to maximize pump life, and minimize O&M expenses. General Pump is proposing to replace the pump and well motor at an estimated cost of $77,115.28. Due to the lead time required to obtain replacement equipment, Well No. 4 is projected to be back on-line by June 30, 2008. A copy of General Pump's letter proposal dated March 26, 2008 is attached for the Council's information. Emergency Repair of Well No. 4 at the 17'h Street Desalter Page 2 April 15, 2008 The loss of Well No. 4 is of major concern to staff for the following key reasons: (1) Well No. 4 is the City's largest production well; (2) water production from Well No. 4 is being used to temporarily offset the loss of storage from Rawlings Reservoir until its replacement is completed in 2011; (3) overall operational, emergency and fire flow water demand within Tustin's service area will start increasing in the next few months with the onset of warmer weather; and (4) in light of Metropolitan Water District of Southern California's drought allocation plan, there exists a possibility of reductions in imported water supplies. Without the capacity of this well, the City's water system may not be able to adequately respond to potential emergencies that may occur during peak demand periods. The adoption of Resolution No. 08-27 would authorize the Public Works Department/Water Division to dispense with the time consuming bidding requirements, and enter into a contract with General Pump to complete the repairs. Note that if the City's Purchasing Policy and Procedures are applied to Well No. 4: (1) valuable time would be lost in bringing the well back on line, especially with growing warm weather demands and emergencies; and (2) they are administratively impractical to implement because the pump and motor for Well No. 4 are currently at General Pump's facility (in Upland). To conduct a public bid, the well equipment would either need to be delivered back to the City's Maintenance Yard for inspection by prospective bidders, or arrangements made to inspect the equipment at General Pump's facilities. Tim D. Serlet Director of Public Works/City Engineer Fred Adjarian Water Services Manager Attachment: Resolution No. 08-27 Letter of Proposal Emergency repair at Well #4 at 17th St. Desalter & Reso. 08-27.docx RESOLUTION NO. 08-27 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF TUSTIN, CALIFORNIA DECLARING THAT THE PUBLIC INTEREST AND NECESSITY DEMANDED THE IMMEDIATE EXPENDITURE OF PUBLIC MONEY TO REPAIR WELL NO. 4 AT THE CITY OF TUSTIN'S 17T" STREET DESALTER TO SAFEGUARD LIFE, HEALTH, AND PROPERTY WHEREAS, groundwater production at Well Number 4 at the 17th Street Desalter has stopped due to the mechanical failure of the well pump and motor; and WHEREAS, Well No. 4 is a critical component of the City's water supply system, and is the largest production well with a capacity of approximately 2,200 gallons per minute; and WHEREAS, water production from Well No. 4 is also temporarily offsetting the loss of emergency, fire and operational storage from Rawlings Reservoir until its replacement is completed; and WHEREAS, without groundwater production from Well No.4, the City's water system may not be able to adequately respond to an emergency that may occur during peak demand periods; and WHEREAS, the City's imported water supplies may be reduced in the event Metropolitan Water District of Southern California implements its Drought Allocation Plan for 2008. NOW, THEREFORE, BE IT RESOLVED that in accordance with Section 22050 of the Public Contracts Code and based on the substantial evidence set forth in the agenda report, that this emergency repair will not permit a delay resulting from competitive solicitations of bids and that this action is necessary to respond to the emergency; AND BE IT FURTHER RESOLVED that the Public Works Department's decision to complete the repair of Well No. 4 without soliciting competitive bids is hereby ratified. PASSED AND ADOPTED at a regular meeting of the City Council of the City of Tustin held on the 15th day of April 2008. Jerry Amante, Mayor ATTEST: City Clerk 159 N. ACACIA STREET SAN DIMAS, CA 91773 PHONE: (909) 599-9606 FAX: (909) 599-6238 WELL & PUMP SERVICE SINCE 1952 Lic. #496765 March 26, 2008 Via E-mail City of Tustin 235 East Main Street Tustin, California 92780 Attn: Art Valenzuela Subject: We114 -Revised General Pump Company, Inc. is pleased to submit the following quote for a new pump and motor for Well 4. Equipment Summary • Johnston / Sulzer 14 DC 4-Stage, Type JTS w/ Investment Cast 310SS. • Impellers and Trim • Hitachi 250 HP 14" 460-Volt, 3-Phase, 60 Cycle, 1750 RPM Motor • Rated 2200 GPM @ 255 Ft Total Dynamic Head • 311 Ft. 10" Column Assembly • 500 MCM, 3 Conductor with Cal. Code Ground 600-Volt Submersible Cable Scope of Work • Assemble new pump and motor. • Splice motor /submersible pump power cable. • Pressure wash submersible surface plate and top column. • Prep equipment for installation. • TDH is based on a production pumping level of 134 feet system discharge pressure of 44 psig with 8 psi of friction losses thru 310 feet of 10" pipe @ 2200 gpm. Shop Labor • Assemble pump bowl and motor 8 Hrs. • Mount air line bracket and fittings 2 Hrs. • Splice motor leads and cable 9 Hrs. • Unspool Customer's cable and inspect for wear and defects; check cable resistance @ 600 volts. Respool Customer's cable 8 Hrs. • Receive and prep equipment /load out 8 Hrs. Total 35 Hrs. @ $98/Hr. $ 3, 430.00 2 Mr. Art Valenzuela City of Tustin March 26, 2008 Field Labor • Installation - 3-Man Crew & Rig - (Est.) 16 Hrs. @ $299/Hr. $ 4, 784.00 Materials • Pump bowl .........................................................................................................$ 13,532.00 FOB Brookshire, Texas -Delivery estimate 10-12 weeks • Submersible motor w/lead ....................................................................................44,990.50 FOB General Pump Company, San Dimas -Delivery est 4-5 weeks • 500 MCM submersible cable - 25 feet ...................................................................1,875.00 • Large splice kit ...........................................................................................................260.00 • 311 feet - `/4" Dekron stainless steel air line /water level gauge, weight, bracket and fittings .....................................................................................1,110.00 • 5/8" stainless steel bandit, bandit clamps and cable pads ..........................................308.00 • Estimated incoming freight .....................................................................................1,870.00 • Sales Tax @ 7.75% .................................................................................................4,955.78 Total Materials .................................................................................................. $ 68, 901.28 Grand Total Labor and Materials ...................................................................$ 77,115.28 Should you have any questions or need additional information, please do not hesitate to give us a call. Sincerely, GENERAL PUMP COMPANY, INC. Michael Bodart Director of Engineering