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Home My WebLink AboutAgenda Report - September 3, 2008 E-06AGENDAITEME00F6 CITY OF LODI COUNCIL COMMUNICATION AGENDA TITLE: Adopt Resolution Authorizing Purchase of New Pump and Motorfor City Water Well No. 18 from Layne Christensen Company, of Woodland ($27,142) MEETING DATE: September 3,2008 PREPARED BY: PublicWorks Director RECOMMENDED ACTION: Adopt resolution authorizingthe purchase of a new pump and motor for City Water Well No. 18 from Layne Christensen Company of Woodland, CA, in the amount of $27,142. BACKGROUND INFORMATION: The submersible 150 HP motor at City Water Well No. 18 failed on February 14, 2008, after being rebuilt in 2001. The original pump motorwas installed in 1975 and failed in 2001 after 26 years of service. The typical service life of a pump motor is 20 years. The company that rebuilt the motorfor Layne Christensen has not stood behind the work, blaming the City's electrical system or control panels for the motor's continued failure. Layne Christensen has worked closely with the City to ensure that the City's electrical system and control panels are working properly. Therefore, Layne Christensen is backing the work and has made a generous offer to pay half the cost of anew pump and motor plus installation (attached). Rather than attempting to repair the existing motor a third time, it is proposed a new pump and motor be installed at a cost of $22,142. There is also an additional cost of $5,000 for adding a column to position the pump and motorto a lower depth (to extend the life of the well) and for splicing in the new cable to the City's electrical control panel, for a total cost of $27,142. The pump and motorfor Well 18 is covered underthe City's insurancefor major equipment through the California Joint Powers Risk Management Authority (CJPRMA). The failure of the motor was reported to CJPRMA, and they were given an estimatefor the cost of repairs or replacement. The City has received an insurance settlement in the amount of $36,193.01 which has been deposited into the Water Operating Fund. A portion of this settlement has already been spent to pull the pump and motor. FISCAL IMPACT: $27,142, which is expected to reduce the high maintenance costs experienced at the well. FUNDING AVAILABLE: Repairfunds are budgeted in theWater Operating Fund (180453)for FY 08/0,% iWlu ding the insurance settlement. Budget Manager F. Wallv 6(andelin PublicWorks Director FWS/CS/FB/dsg Attachment cc: Charles Swimley, Water Services Manager APPROVED: Bialr*g, City Manager K �wPNCOUNCIL\08\WelllBPumpMotor.doc 0812712008 Layne Christensen Company P.O. Box 1326,275 C=-Lty Road 98 * Woodland, CA 95695-8925* Phone: (530) 662-2825 * Fax: (530) 662-2896 July 25,2008 City of Lodi Attention: Frank Beeler 1331 S. Ham Lane Lodi California 95242 Dear W. Beeler: RECEII/eD JUL 9, 8 200,8 CTTY'01F LOCI MUNICIPAL SER This letter is to confirm our conversation concerning your Well Pump #18 located at Century Blvd. and Church Street in Lodi. I do not think there is a need to review all the problems we have had with this 150 HP BJ submersible pump other than the most recent episode where it operated for about 750 hours before failing. As we have discussed, Layne has utilized the BJ factory, SunStar Electric and Alstra Industries over the last several years for BJ motor repairs with mostly unsatisfactory results. This is the third time this motor has been back to SunStar and they are refusing to warrantee the motor because they are claiming the failure is caused by external vibration or faulty/inadequate controls. We have disassembled the bowl assembly each time and checked the shaft, bearings and impellers for straightness, alignment, etc. and never found any problems. We also know you have good controls/protection and we respect your electriciansas being very competent. We believe the problem is in the motor but are at an impasse with the supplier. This is the sort if problem that everyone has a point and is near impossible to sort out all the issues. We know this has been a pain for the city and appreciate your understanding and patience. We have a very low confidence that rebuilding the motor once again will be successful and think it would be best to look at other options. We propose that an all new motor/bowl assembly be installed that designed for the same operating conditions as the existing pump. The city would pay for 50% of the cost. Other than getting a pump that will operate the advantage to the city would be an all new motor/pump rather the a 20 + year old rebuilt unit. The proposed pump would utilize a 150 HP, 1,800 RPM, 460 volt, 3 phase, 12" Hitachi submersible motor and a 4 stage, 14 RJMC Christensenbowl assembly. The motor and bowl data information are enclosed. The total cost is $44,284.00 plus California taxes. The cities cost would be $22,142.00 plus Californiataxes on materials. Another option would be a 3,600 RPM pump/motor of the same design which cost $24,428.00,or $12,214.00to the city. The 2 pole motor is .5% less efficient than the 4 pole and in general, 2 pole pumps have a shorter service life than the slower speed units. Note that the existing submersible cable should be inspected and may also need to be replaced if in poor condition. I hope you fmd this proposal equitable, if you have any questions call me at 530-662- 2825 or 916-997-7993. Sincerely, Richard Eberlein Enclosures PUMPDATASHEET Submersible6OHz Company. LAYNE CHRISTENSEN Customer: CITY of LODI Name: WELL #18; 150 HP SUBMERSABLE PUMP Date: 07/25/08 Order No: Pump: 100 Size: 14RJMC (4 stages) Head: 280 ft Type: Submersible Speed: 1770 rpm Synch speed: 1800rpm Dia: 9.125 in Curve: E6614RGPC3 Vapor pressure: 0.2563 psi a Specific Speeds: Ns: 2990 Pump Notes for Standard Sizes: Discharge Sizes -8", 10", 1 Z' Vertical Turbine: Bowlsize: 13.63in Size: 150 h Maxlateral: 1 in Speed:10 Thrust Kfactor: 13[btft Pump Limitsfor Standard Construction: Temperature: 120 "F Pressure: 340 psi g Sphere size: 0.98 in 1750 2000 2250 2500 --- Data Point --- Flow: 1750 US gpm Head: 280 ft Eff: 84.1 % Power:147hp NPSHr 18.7 ft -- Design Curve Shutoff Head: 423 ft Shutoff dP: 183 psi Min Flow: --- USgpm BEP: 84.2% eff @ 1820 US gpm NOL Pwr 148 hp @ 1870 US gpm -- Max Curve — Max Pwr: 182 hp @ 2081 US gpm 9.82 in Duu 400 300 200 <E 30 Ckid"am Pun*$ A d"sion I�Vany L,aym Chrisknsen Search Criteria: 100 Flow: 1750 US gpm Head: 280 ft Fluid: Water Temperature: 60 T Density: 62.25 lb/ft' Vapor pressure: 0.2563 psi a Viscosity: I 105cP Atm pressure: 14.7 psi a NPSHa: --- ft Motor: Standard: NEMA Size: 150 h Speed:10 Sizingcriteria: Max Power on Design Curve 70 100 250 500 750 40 0 n 250 500 750 1000 1250 1500 1750 2000 2250 2500 20, US gpm *erformance Evaluation: co Flow Speed Head Efficiency Power IL US gpm rpm ft % hp Z 2100 1770 224 80.9 146 24 0 1770 280 84.1 147 18.7 250 500 750 80.1 200 15.7 1050 1770 CL 71.7 129 ill 700 1770 376 54.1 119 15 0 n 250 500 750 1000 1250 1500 1750 2000 2250 2500 US gpm *erformance Evaluation: Flow Speed Head Efficiency Power NPSHr US gpm rpm ft % hp ft 2100 1770 224 80.9 146 24 1750 1770 280 84.1 147 18.7 1400 1770 322 80.1 142 15.7 1050 1770 350 71.7 129 ill 700 1770 376 54.1 119 15 TurbineV9 Selected from catalog: Ch Sub 60HZ Vers: 3.10 70 1 1 5()0: 9.82 in 45011 9.125 in 4001 100 350 1750 2000 2250 2500 40 V 300 7.75 'in x 20 250 - ia 200 150 70 1 1 Company: LAYNE CHRISTENSEN Name: WELL#18; 150 HIP SUBMERSABLE PUMP 7/25/�008 Submersible 60 Hlz Catalog: Ch Sub 60HZ, Vers 3.10 Submersible - 1800 Design Point: 1750 US gpm, 280 ft Size: 14RJMC 4 stage Speed: 1770 rpm Dia: 9.125 in Curve: E6614RGPC3 CMiskxwn Pwmps A divisim q f w chris� conj 70 100 500 750 1000 1250 1500 1750 2000 2250 2500 40 20 ia Z 0 250 500 750 1000 1250 1500 1750 2000- 2250 2500 200 CL 100 0 IL 0 250 500 750 1000 1250 1500 1750 2000 2250 2600 US gpm Discharge Sizes -B", 10", 12" Company: LAYNE CHRISTENSEN Name: WELL#18; 150 HIP SUBMERSABLE PUMP 7/25/�008 Submersible 60 Hlz Catalog: Ch Sub 60HZ, Vers 3.10 Submersible - 1800 Design Point: 1750 US gpm, 280 ft Size: 14RJMC 4 stage Speed: 1770 rpm Dia: 9.125 in Curve: E6614RGPC3 CMiskxwn Pwmps A divisim q f w chris� conj I a - 'tom M 200 100 LL: 0 - CA -OHITACHI D 38 Date : 12/1/82 12"SUBMERSIBLE MOTOR Supersedes : New PERFORMANCE CHARACTERISTICS 150H P 1800 R P M WATER TIGHT Type ISO P 1800 RPM 3 Phase 460 _ Volt 60 — Cycle 1.15 S.F. 25*C (77*F) Max. Amb. Water 10000 IN Thrust Loa( 100 OUTPUT LOAD (H P) I No load 1 (—) 25% (37.51 1 50% (75) 10125 75% j 100% 1(115%)1(125%) (150) 172.5 187.5 1 AMPS 67.1 80.41 109 146 19L 223 244 EFF. 0 83.3 E177.8 87.7 86.1 84.5 83.3 P.F. 11.5 52.4 73.5 82.1 85.4 06.1 86.2 -RPV-- 1800 1779 1756 1 1730 1 17GO 1677 1663' WATTS 1 6200 33580 637201 95700 1 13000011500=1 1680001 M M 200 (HP) Full Load Torque 463 Foot Pounds Break Down Torque 801 Foot Pounds Locked Rotor Torque 667 Foot Pounds Locked Rotor Current 842 Amperes KVA Code D Additional input wafts due to thrust load — see page C6. Power factor correction capacitor — we page C8. Quick trip O.L. + short circuit protection required in each phase. 8 8 Date : 12/1/82 VOLE HITACHI SUBMERSIBLE MOTORS Supersedes : NEW 12" MOTOR LEAD WIRE 200" LENGTH 1.9375 T-93-69 t -H L D- 000 999 , -315 ,-�SQ KEY .813DIA 4HOLES 2 SECTION A—A' Dimensions in inches HP PHASE I VOLT I H. THRUST (LBS) L 150 3 460 60 10000 61.30 56.30 175 3 60 10000 66.02 61.02 HITACHI SUBMERSIBLE ..aOTORS (4 POLE) PERFORMANCE AND APPLICATION DATA INCH) HZ PHASE SERVII E C FACTOR WINDING ' CONN ION nV,S,SjKT N WITH MOTSR' LEADS(E2) at 680F -(213C) RATEDINPUT SERVICE FACTOR INPUT MAX. THRUST LOAD (LBS) EFFICIENCY(%) POWER FACTOR(% � LOCKED ROTOR P&MNIBN STD. FUSE SIZE DUAL ELE- MENT FUSE SIZE ANIPS WATTS ANIPS WATTS F.L. F.L. 3/4 1/2 ANIPS CODE STARTER SIZE HEATE F-- .1 CODE (FURNASE AMB.COMP.] -10" 100 460 60 3 1.15 DELTA 0.214 142 85950 161 100100 10000 1 86.8 87.0 85.11 75.71 70.1 59.8 5521 D 4 K94 450 175 50 3 1.0 0.214 172 88800 - - 10000 1 84.0 85.7 85.21 78.3 74.3 64.5 555 1 C 4 K96 450 175 50 1 3 1 1.0 0.2141 165 1 888001 - I - 10000 84.0 84.3 82.2 73.5 67.5 56.3 592 D 4 K96 450 175 1251 460 60 3 1.15 0.1731 174 1 1089401 196 1 126910 10000 85.6 85.9 83.9 78.5 72.9 61.9 552 C 4-1/2 K29 600 200 125 i 380 50 3 1.0 0.173 210 1 1125001 - - 10000 84.3 84.6 82.6 83.2 77.3 165.6 0 560 A 4-1/2 K31 600 250 125 415 50 3 1.0 0.173 201 112500 - - 10000 84.3 83.3 80.0. 78.1 70.2 57.3 592 B 4-1/2 K31 600 250 12" 150 460 60 3 1.15 OJ37 IL91 I UMN 1 223 LMM 10000 86.1 97.7 87.8 85.4 82.1 73.5 842 D 4-1/2 K31 600 250 150 380 50 3 1.0 0.137 231 11343001 - - 10000 84.8 86.4 86.5 90-S 87.0 77.9 830 C 4-1/2 K32 600 250 150 415 50 3 1.0 0.07 216 130900 - - 10000 85.5 97.7 86.6 84.4 80.0 69.7 890 D 4-1/2 K32 600 250 175. 460 60 3 1.15 010M 224 147300 252 171000 10000 88.6 89.0 87.7 82.6 77.3 66.4 1250 G 6 K23 700 250 175 380 50 3 1.0 0.0M 271 152100 - - 10000 87.3 97.7 86.41 87.6 81.9. 70.4 1231 E 6 K23 700 275 175 415 50 3 1.0 0.0773 0.0773 0.0773 0.0773 0.0585 253 253 306 286 309 1484001 - - 10000 1 88.0 89.0 87.9 81.6 75.3 63.0 1320 F 6 K23- 700 215 200 460 60 3 1.15 169500 288 197400 10000 88.0 88.9 88.3 84.3 80.0 70.3 1250 E 6 X24 800 275 200 380 50 3 1.0 175100 - - 10000 86.7 87.6 87.0 89.4 84.8 74.5 12311 D 6 K26 800 325 --1200 i 415 50 3 1:0 170700 - - 10000 97.4 88.9 87.8 83.3 77.9. 66.7 1320 E 6 K26 800 325 14 250 460 60 3 1.15 207700 348 240200 10000 89.8 89.7 88.0 94.4 80.5 71.6 1701 F 6 K27 900 350 so 3 1�0 0.0585 365 210300 - - 10000 88.7 89.8 89.6 87.5 84.7 77.1 1647 D 6 K29 1000 400 50 3 1.0 0.0585 349 209100 - - 10000 89.2 89.7 88.7 83.4. 78.4 67.9 1799. F 6 K29 .(100q 400 300, 460 SD 3 1.15 0.052 367 250300 ' 426 290500 10000 89.4 90.1 89.3 85.5 83.1 76.0 1701 E 6 K29 1200 500 001 380 $0 3 1.0 0.052 1 434 258600 - - 1 10000 88.1 88.7 88.0 90.6 88.1 80.5 1675 C 6 K32 1200 500 300 1 415 80 3 1.0 0.052 1 415 252000 - - [10000 90.0 84.5 80.9 72.0 1799 D 6 K32 1200 500 0 CJ *HITACHI RESOLUTION NO. 2008-173 A RESOLUTION OF THE LODI CITY COUNCIL AUTHORIZING PURCHASE OF NEW PUMP AND MOTOR FOR CITY WATER WELL NO. 18 WHEREAS, Lodi Municipal Code Section 3.20.070 authorizes dispensing with bids for purchases of supplies, services, or equipment when it is in the best interest of the City to do so; and WHEREAS, the submersible 150 HP motor at City Water Well No. 18 failed on February 14, 2008, and this was the second time this same motor has failed after being rebuilt. The company that rebuilt the motor for Layne Christensen has not stood behind the work, blaming the City's electrical system or control panels for the motors continued failure; and WHEREAS, Layne Christensen has worked closely with the City to ensure that the City's electrical system and control panels are working properly; therefore, Layne Christensen is backing the work and has made a generous offer to pay half the cost of a new pump and motor plus installation; and WHEREAS, staff recommends replacing the pump and motor at City Water Well No. 18 ratherthan attempting to repairthe existing motor a third time; and WHEREAS, the cost of a new pump and motor at City Water Well No. 18 would be $22,142. There is also an additional cost of $5,000 for adding a column to position the pump and motor to a lower depth (to extend the life of the well) and for splicing in the new cable to the City's electrical control panel, for a total cost of $27,142; and WHEREAS, the pump and motor for Well 18 is covered under the City's insurance for major equipment through the California Joint Powers Risk Management Authority, and the City has already received an insurance settlement in the amount of $36,193.01. NOW, THEREFORE, BE IT RESOLVED that the Lodi City Council does hereby adopt a resolution authorizing the purchase of a new pump and motor for City Water Well No. 18 from Layne Christensen, of Woodland, California, in the amount of $27,142. Dated: September 3, 2008 I hereby certify that Resolution No. 2008-173 was passed and adopted by the City Council of the City of Lodi in a regular meeting held September 3, 2008, by the following vote: AYES: COUNCIL MEMBERS — Hansen, Hitchcock, Johnson, Katzakian, and Mayor Mounce NOES: COUNCIL MEMBERS — None ABSENT: COUNCIL MEMBERS —None ABSTAIN: COUNCIL MEMBERS— None qR I'JOHL City Clerk 2008-173