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Home My WebLink About1998-06-23; Municipal Water District; 415; Maerkle Reservoir Cover & Liner1 ow 5 tk 4 . . p Y ii! iti CARLSBAD MUNICIPAL WATER DISTRICT - AGENI AB# x TITLE: APPROVAL OF CHANGE ORDER NO. 16 AND AUTHORIZATION TO INCREASE MTG. 06123198 CONTINGENCY BUDGET FOR DEPT. CMWD MAERKLE RESERVOIR COVER AND LINER CMWD PROJECT NO. 90409, CITY PROJECT 3388 CITY MGR. RECOMMENDED-ACTION: Adopt Resolution No. /(I20 for approval of Change Order No. 16 and authorization to increase contingency budget for Maerkle Reservoir Cover and Liner, CMWD Project No. 90- 109, City Project 3388. ITEM EXPLANATION: On October 1, 1996, the Board adopted Resolution No. 958 awarding the construction contract and approving the budget for construction of Maerkle Reservoir Cover & Liner. The contingency budget is established to cover changes to the project occurring during construction. The contingency budget amount was approved at $456,000. Change orders approved to date have totaled $426,201.68 which is less than the budget amount. The changes are summarized on Exhibit “A” for reference. However, three additional items have been requested by the District that will result in the contingency budget being exceeded. The three items include: 1. Applying additional gunite to the south face cut slope to prevent soil from sloughing off the slope. This is to prevent damage to the cover and debris clogging the storm drain. Estimated cost is $56,000. 2. Construct gate, stucco wall, and replace concrete driveway at Applewood Lane entrance to reservoir property. This will replace existing chain gate and fence and eliminate trespassing onto the property and control access at this entrance. This is the main entrance for chemical delivery trucks, heavy equipment, construction workers and lease holders. Approximate cost $59,000. 3. Furnish and install chloramination water treatment process to come into compliance with regulatory requirements. Estimated cost is $5,000. The above three (3) items comprise Change Order No. 16. Based on the above changes staff is recommending that the contingency budget be increased to $556,000 reflecting an increase of $100,000 over the existing budget. FISCAL IMPACT: Funds in the amount of $7,800,000 were appropriated in the 1996-97 Budget as part of the Water Replacement and Connection Fees. Staff is recommending an increase in the contingency budget as shown in the following table: The available balance for the project as of May 31, 1998, was $2,196,147; therefore, there are sufficient funds to cover the recommended increase. ENVIRONMENTAL REVIEW: The Water Board approved a mitigated Negative Declaration for this project on June 8, 1995. EXHIBITS: 1. Change Order Summary Table. 2. Adopt Resolution No. / 02 0 for approval of Change Order No. 16 and authorization to increase contingency budget for Maerkle Reservoir Cover and Liner, CMWD Project No. 90-109, City Project 3388. 2 , EXHIBIT 1 1 1 1 2 1 1 1 1 1 1 1 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 1 1 2 3 4 1 2 3 I-Change encased pipe as shown on plans $20,835.00 2-Remove, backfill & recompact material 84,426.40 3-Install steel outlet pipe 18,653.OO Install storm drain clean-out 3,491.25 4-Excavate for cast in place 3,598.45 5-Expansion joints 12,728.OO 6-Maintain designed volume of water 31,500.00 7-Provide grating at the hydraulic valve channel 19,164.OO 8-Provide alternate route 20,000.00 9-Provide/install 1 micromiac 2300 Level Control 32,201 .OO IO-Hydroseeding 17,651 .OO Additional AC pavement 60,385.88 11 -Delete 15 inflaction hatches (26,330.10) Delete 19 access hatches (53,642.89) Add 19 access hatches 81,695.06 Add 7” dia vs 6” sand tubes 9,423.oo Add sand tube straps 16,820.24 Delete hatchway access straps (3,414.75) Add 430 LF at sump floats 4,861.20 Add 410 LF at sump floats 8,273.80 Furnish 600 LF dis tubes 1,698.OO Furnish 1200 LF attachment strips 5,112.oo Install 1200 LF of attachment strips 3,084.OO Moving sand tubes 4,946.OO Add 3 sand tube straps 6J48.01 Add 660 LF of 3” dia weights 3,49 1.40 Delete inflation fan (1,353.OO) Deduct for cover clean-out (362.00) 22.9 dia sand tube weights 1,133.oo Add 44 sand tube weight straps 2,078.12 Delete vent cover (1,408.OO Addt’l labor & materials 3,747.91 12-Supply/install chaffing strip 8,476.50 13-Remove/replace existing chain link fence 8,387.OO 14-Provide/install 4” brass fittings/nipples 539.20 Provide/install discharge piping 431 .oo Provide/install discharge manifold 491 .oo Provide/install inflation hatches 135.00 15-6” AC berm 5,375.oo MGMA cabinet 8,394.OO Convert pump control from AC to DC 3,540.oo TOTAL $426,201.68 - RESOLUTION NO. 1020 EXHIBIT 2 A RESOLUTION OF THE CARLSBAD MUNICIPAL WATER DISTRICT OF CARLSBAD, CALIFORNIA, FOR APPROVAL OF CHANGE ORDER NO. 16 AND AUTHORIZATION TO INCREASE CONTINGENCY BUDGET FOR MAERKLE RESERVOIR COVER AND LINER, CMWD PROJECT NO. 90-109, CITY PROJECT 3388 WHEREAS, the Board of Directors adopted Resolution No. 958 on October 1, 1996, awarding the construction contract and approved the budget for construction for the Maerkle Reservoir Cover and Liner; and WHEREAS, a change order has been submitted in the amount of $120,000 for review and approval for prevention of soil sloughing to prevent damage to the storm drain; for construction of a gate, stucco wall, and driveway to replace existing chain gate and fence to eliminate trespassing and control access at this entrance; and to furnish and install chloramination water treatment process to come into compliance with regulatory requirements; and WHEREAS, the Board of Directors of the Carlsbad Municipal Water District has determined it to be in the public interest to approve the change order and authorize an appropriation in the amount of $100,000. NOW, THEREFOR, BE IT RESOLVED by the Board of Directors of the Carlsbad Municipal Water District as follows: 1. That the above recitations are true and correct. 2. That funds were appropriated in the amount of $7,800,000 in the 1996-97 Budget as part of the Water Replacement Fund, and the balance for the project as of May 31, 1998 was $2,196,147. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 -. 3. That the change order for prevention of soil sluffing to prevent damage to the storm drain; for construction of a gate, stucco wall, and driveway to replace existing chain gate and fence to eliminate trespassing and control access at this entrance; and to furnish and install chloramination water treatment process to come into compliance with regulatory requirements is hereby approved, and the Finance Director is authorized to appropriate $100,000 for payment of the change order. PASSED, APPROVED AND ADOPTED at a special meeting of the Carlsbad Municipal Water District of Carlsbad, California held on the 23rd day of June , 1998, by the following vote to wit: AYES: Board Members Lewis, Finnila, Nygaard and Hall NOES: None ABSENT: Board Member Kulchin ATTEST: - ALETHA L. RAUTENKRANZ, Sekretary (SEAL)