REQUEST FOR PROPOSAL FOR ELECTRODE REPLACEMENT AT BLACK MOUNTAIN AND REACH 6 PIPELINE

Transcription

1 REQUEST FOR PROPOSAL FOR ELECTRODE REPLACEMENT AT BLACK MOUNTAIN AND REACH 6 PIPELINE CENTRAL ARIZONA WATER CONSERVATION DISTRICT RFP C1630 PROPOSAL DUE MAY 25, :00 PM ARIZONA TIME

2 Table of Contents SECTION TITLE PAGE A. INTRODUCTION...2 B. PROPOSAL PREPARATION INSTRUCTIONS 3 C. TERMS AND CONDITIONS 4 D. SPECIAL CONDITIONS..5 E. PROPOSER FORM..8 F. SPECIFICATIONS..10 EXHIBIT 1 EXHIBIT 2 DRAWINGS Directions to Black Mtn and Reach Estimated Distance Between References

3 Section A INTRODUCTION The Central Arizona Water Conservation District (CAWCD) is a multi-county water conservation district and political subdivision of the state of Arizona organized pursuant to A.R.S et seq. for the purposes, among others, of contracting with the United States for the delivery of Central Arizona Project (CAP) water, repayment of CAP costs and operation and maintenance of the CAP aqueduct. The CAP is designed to bring about 1.5 million acre-feet of Colorado River water per year to Pima, Pinal and Maricopa counties. The CAP carries water from Lake Havasu near Parker to the southern boundary of the San Xavier Indian Reservation southwest of Tucson. It is a 336-mile long system of aqueducts, tunnels, pumping plants and pipelines and is the largest single resource of renewable water supplies in the state of Arizona. PROJECT DESCRIPTION CAWCD is soliciting a proposal for Electrode Replacement at Black Mountain and Reach 6 Pipeline as fully described in the specifications. The Proposal is requested to be received on or before the day stated on the cover sheet of this solicitation. 2

4 Section [B] PROPOSAL PREPARATION INSTRUCTIONS 1. GENERAL INSTRUCTIONS A. Questions may be addressed to Rick Lott (623) or by to B. The proposal shall be submitted with pricing by task and each task activity as defined in Section F Technical Specifications in table format. Provide a rate schedule for personnel classifications, including any subcontractors. The schedule must include a breakdown of all components of cost: labor base rate, other direct costs, overhead, and fee. C. Clarifications and notations to the technical specifications shall be submitted as a separate addendum document in addition to the price proposal. CAWCD will revise the technical specifications after final agreement is reached by CAWCD and the Contractor to incorporate into the contract. D. Clarifications and notations to Terms and Conditions shall be submitted as a separate addendum document. E. Proposals shall be submitted to Rick Lott by to rlott@cap-az.com.. 3

5 Section C TERMS AND CONDITIONS General Terms and Conditions Rev and Goods Terms and Conditions and Services Terms and Conditions Rev govern this request for proposal. They are available for review and download at 4

6 SECTION D SPECIAL CONDITIONS 1. INSURANCE REQUIREMENTS Contractor and subcontractors shall procure and maintain insurance against claims for injury to persons or damage to property which may arise from or in connection with the performance of the work hereunder by the Contractor, his agents, representatives, employees or subcontractors, until all of their obligations have been discharged, including any warranty periods under this Contract are satisfied. The insurance requirements herein are minimum requirements for this Contract and in no way limit the indemnity covenants contained in this Contract. CAWCD in no way warrants that the minimum limits contained herein are sufficient to protect the Contractor from liabilities that might arise out of the performance of the work under this contract by the Contractor, its agents, representatives, employees or subcontractors, and Contractor is free to purchase additional insurance. 1.1 Additional Insurance Requirements: The policies shall include, or be endorsed to include, the following provisions: a) The Commercial General Liability policy shall be endorsed to include the following Additional Insured language: "Central Arizona Water Conservation District, its officers, directors, employees, agents and contractors, and each and any of them shall be named as Additional Insured with respect to liability arising out of the activities performed by or on behalf of the Contractor." b) Coverage provided by the Contractor shall not be limited to the liability assumed under the indemnification provisions of this contract. c) The Contractor's insurance shall contain broad form contractual liability coverage and shall not exclude liability arising out of explosion, collapse, or underground property damage hazards (XCU). d) The Contractor's insurance coverage shall be primary insurance with respect to CAWCD, its officers, directors, employees, agents, and contractors. Any insurance or self-insurance maintained by CAWCD shall be in excess to the coverage of the Contractor's insurance and shall not contribute to it. e) The policies shall contain a waiver of subrogation against CAWCD, its officers, directors, employees, agents and contractors for losses arising from work performed by the Contractor for CAWCD. 1.2 Notice of Cancellation: The Contractor will notify CAWCD, in writing, if any policy or coverage provision is suspended, voided, canceled, or reduced in coverage or in limits. Such notice to be, if possible, thirty (30) days prior to the scheduled change. Such notice shall be sent directly to (Central Arizona Water Conservation District, Risk and Insurance Administrator, P. O. Box 43020, Phoenix, AZ ). 5

7 1.3 Acceptability of Insurers: Insurance is to be placed with duly licensed or approved non-admitted insurers in the state of Arizona with an A.M. Best rating of not less than A- VII. The Central Arizona Water Conservation District in no way warrants that the above-required minimum insurer rating is sufficient to protect the Contractor from potential insurer insolvency. 1.4 Verification of Coverage: Contractor shall furnish the Central Arizona Water Conservation District with certificates of insurance (ACORD form or equivalent) as required by this Contract. The certificates for each insurance policy are to be signed by a person authorized by that insurer to bind coverage on its behalf. All certificates and endorsements are to be received and approved by the Central Arizona Water Conservation District before work commences. Each insurance policy required by this Contract must be in effect at or prior to commencement of work under this Contract and remain in effect for the duration of the project. Failure to maintain the insurance policies as required by this Contract, or to provide evidence of renewal, is a material breach of contract. All certificates required by this Contract shall be sent directly to (Central Arizona Water Conservation District, Risk & Insurance Administrator, P. O. Box 43020, Phoenix, AZ ). The Contract number and Contract description shall be noted on the certificate of insurance. The Central Arizona Water Conservation District reserves the right to require complete, certified copies of all insurance policies required by this Contract at any time. 1.5 Subcontractors: Contractors certificate(s) shall include all subcontractors as insured s under its policies or Contractor shall furnish to the Central Arizona Water Conservation District separate certificates and endorsements for each subcontractor. All coverage s for subcontractors shall be subject to the minimum requirements identified above. 1.6 Approval: Any modification or variation from the insurance requirements in this Contract shall be made in writing as a formal Contract amendment. 1.7 Exceptions: In the event the Contractor or sub-contractor(s) is/are a government entity, then the Insurance Requirements shall not apply. Such government entity shall provide a Certificate of Self-Insurance. a) Minimum Scope And Limits of Insurance: Contractor shall provide coverage with limits of liability not less than those stated below. 1) Commercial General Liability Occurrence Form Policy shall include bodily injury, property damage, personal injury and broad form contractual liability and XCU coverage. General Aggregate $ 2,000,000 Products Completed Operations Aggregate $ 2,000,000 Personal and Advertising Injury $ 1,000,000 Each Occurrence $ 1,000,000 Blanket Contractual Liability Written and Oral $ 1,000,000 Fire Damage (Any one fire) $ 1,000,000 6

8 i. Using form CG 2010 (10/01) and CG 2037 (10/01), or equivalent, the policy shall be endorsed to include the following Additional Insured language: Central Arizona Water Conservation District, its officers, directors, employees, agents and contractors, and each and any of them shall be named as additional insured with respect to liability arising out of the activities performed by or on behalf of the Contractor. ii. The policy shall be endorsed with Aggregate Limits of Insurance CG 2504 or 2503 as appropriate on the Commercial General Liability policy. 2) Automobile Liability Bodily Injury and Property Damage for any owned, hired, and/or nonowned vehicles used in the performance of this Contract. Combined Single Limit (CSL) $ 1,000,000 3) Worker's Compensation and Employers' Liability Workers' Compensation Statutory Employers' Liability Each Accident $ 1,000,000 Disease Each Employee $ 1,000,000 Disease Policy Limit $ 1,000,000 i. Policy shall contain a waiver of subrogation against the Central Arizona Water Conservation District, its officers, directors, employees, agents and contractors for losses arising from work performed by or on behalf of the Contractor. ii. This requirement shall not apply to: Separately, EACH contractor or subcontractor exempt under A.R.S , AND when such contractor or subcontractor executes the appropriate waiver (Sole Proprietor/Independent Contractor) form. 5) Commercial Umbrella or Excess Liability occurrence form Each Occurrence $ 1,000,000 i. This coverage is optional. It may be used in conjunction with underlying coverage to meet the minimum limits as outlined above. 7

9 1. PROPOSAL PROVISIONS SECTION E PROPOSER FORM After receipt of proposal, CAWCD may exclude certain items and services included in the Request for Proposal. All Proposals are subject to the provisions contained in the Proposal Documents and the Contract Documents. Proposals shall be irrevocable and remain open for acceptance by CAWCD for a period of ninety (90) days from the Proposal due date. Proposals will be evaluated based on the following proposal schedule. 2. PROPOSAL SCHEDULE Proposer will complete the work in accordance with the following schedule: Item(s) PRICE A. Electrode Replacement Cost $ Per attached specifications Total Contract Amount (taxes excluded) $ Note: Proposal may be provided on Contractors standard Proposal form/format. 3. TERMS A. Standard Payment Terms...Net 30 B. Prompt Payment Discount DELIVERY Proposer states that all items will be completed in calendar days after receipt of order. Any delay in delivery beyond the stated date may result in the implementing of the default and/or liquidated damages provisions 5. PAYMENT SCHEDULE The Contractor shall submit to CAWCD invoices for charges payable in accordance with the items and terms specified in this Contract. The invoice shall be identified with CAWCD's contract number and shall be itemized to reflect the services performed. All invoices shall be paid on a Net 30 basis upon receipt of an accurately prepared invoice and must be ed to the following address: invoices@cap-az.com. 8

10 6. CERTIFICATION A. Proposer certifies it is a: Sole Proprietorship ; Partnership : Corporation. B. Arizona sales tax no. C. Federal tax ID no. D. Arizona Contractor License no. 7. EXCEPTIONS TO SPECIFICATIONS AND OR TERMS AND CONDITIONS: YES ( ) NO ( ) If yes, attach additional pages with details of specific exceptions. 8. PROPOSER Company s Legal Name Address City, State and Zip Code Telephone No Authorized Signature Printed Name and Title Date Company Address FOR QUESTIONS REGARDING THIS OFFER: (if different from above) Contact Name Phone Number Fax Number Address 9

11 Section F SCOPE/SPECIFICATIONS CAP Pipelines Automatic Cathodic Protection System Reference Electrodes Replacement Background: Black Mountain and Tucson Reach 6 Pipelines An automatic potential-controlled cathodic protection system on CAWCD pre-stressed concrete cylinder pipes (PCCP) was designed and installed with a reference electrode to control cathodic protection effectiveness and prevent pipelines from over-protection. The reference electrode is buried at various depths from site to site. The reference electrode electrical wire is connected to the rectifier at the terminal marked "Reference Electrode". The type of pipeline, approximate earth cover of reference electrode and type of reference electrode is attached for your reference. The station and elevation of each zinc reference electrode (quantity of 24) are listed in drawing package of Black Mountain Pipeline Plan and Profile Cathodic Protection and Tucson Reach 6 Pipeline Plan and Profile Cathodic Protection. The existing reference electrodes at Black Mountain and Tucson Reach 6 pipelines are designed with metal lids and most of them have been located by CAWCD personnel. A magnet device has been installed on the bottom side of the metal lids to assist Contractor in locating them. It is for Contractor's reference only. It is the Contractor's sole responsibility to locate and replace all the reference electrodes prior to replacing them. The awarded Contractor shall be responsible for notifying Blue Stake and shall contact CAWCD for dig permits prior to any excavation. Scope of Work: The Contractor shall remove and dispose of existing reference electrodes from cathodic protection system and replace with new electrodes at all 24 locations as shown at attached drawings. Two No.8 AWG wires are connected to new zinc reference electrode. One wire shall be connected back to the terminal of existing rectifiers which are labeled as "Reference Electrode". The second wire with shorter distance shall be terminated at the local site with at least 24 slack covered with lid for CAP further test. The reference electrode wires shall not be allowed to have any splices and the electrode wire shall have enough slack to prevent stress during the installation. The reference electrode wire which extends to the rectifier may be direct buried below

12 grade, but shall be installed in plastic-coated rigid steel conduit above ground. Either the existing conduit may be used or a new conduit can be installed. Zinc reference electrode shall have the following features and characteristics, refer to drawing 344-D (1) A Wyoming bentonite clay and water mixture shall be placed to a depth of one foot at the bottom of the hole using the tremie method. Only sufficient water shall be added such that the mixture can be pumped. This layer shall be allowed to stabilize until it is able to support the entire reference electrode assembly. (2) The prepackaged, permanent reference electrode shall be placed within a porous, permeable, cloth bag such that the electrode is centered within a 2-inch layer of sand. This assembly shall then be placed within another porous, permeable, cloth bag such that the assembly is centered within a 2-inch layer of Wyoming bentonite clay. The water-supply pipe shall terminate within the 2-inch sand layer. (3) The entire assembly shall be lowered to the bottom of the hole. At no time shall the reference electrode wire or the water-supply pipe be allowed to support the weight of the reference electrode assembly. (4) The annulus between reference electrode assembly and the walls of the hole shall be backfilled with Wyoming bentonite clay and water slurry, the consistency of thick cream. The slurry shall be placed to depth of 1 foot over the top of the reference electrode assembly. The slurry shall be placed by tremie method. (5) The electrode shall be constructed with high purity zinc meeting the chemical requirements of ASTM B , Type II. (6) The electrode shall be weight 5 pounds and have dimensions of approximately 1.4 by 1.4 by 9 inches (W, H, L). (7) The electrode shall be ¼" diameter, electro-galvanized, mild steel core. (8) The electrode shall have two No. 8 AWG wires sufficiently long such that it can be laid without splices and stress. One wire is connected to rectifier terminal marked as "Reference Electrode" and second wire is laid inside the cover lid with at least 24 slack. (9) The electrode shall have a crimped, silver-solder connection of cable to the mild steel core. The silver-solder connection and all exposed mild steel core and copper shall be epoxy-potted. (10) The electrode shall be centered within specific chemical backfill consisting of a 50- percent gypsum and 50-percent bentonite mixture. The electrode and backfill shall be

13 contained within a porous and permeable biodegradable cloth bag, with an overall size of 5 inches in diameter by 15 inches. Verification Tests A reference electrode verification test shall be conducted at each site after the replacement is completed. A freshly prepared copper-copper-sulfate electrode shall be placed on top of buried reference electrode. The negative terminal of a Fluke meter shall be connected to buried zinc electrode with the positive terminal connected to the freshly prepared copper-copper sulfate electrode. The potential difference and polarity of potential reading between the two electrodes shall be recorded. The potential difference between the freshly prepared copper-copper sulfate electrode and the buried zinc electrode shall be in the range of 1.1 volts +/- 50 millivolts or 1.05 Volts to 1.15 volts. If the test is outside the specified range, the Contractor shall correct the installation in a manner acceptable to CAWCD. Record the final readings and submit to CAWCD for review. Referenced Drawings and Documents Direction to Black Mountain Pipeline and Tucson Reach 6 Pipeline Estimated Distance between Reference Electrode and Rectifier Reference Drawings (Attached): 344-D Cathodic Protection System Phase II Deep Well Anode Bed and Reference Electrodes- Plan, Sections and Detail 344-D cathodic Protection Systems- Phase II Electrical Installation Rectifier Enclosure Typical Cathodic Protection System -Phase II Electrical Installation Black Mountain Pipeline STA to STA Drawing BMP-C-C01130 to BMP-C-C01138 Cathodic Protection System -Phase III Electrical Installation Tucson Aqueduct Reach 6 Pipeline Station to Station drawings 344-D to 344-D22074

14 DIRECTION TO BLACK MOUNTAIN PIPELINE AND REACH 6 PIPELINE BLACK MOUNTAIN PUMPING PLANT AND PIPELINE MILEMARKER PIMA COUNTY 5990 W. AJO WAY TUCSON, ARIZONA LOCATION West of Tucson and south of Tucson Mountain Park DIRECTIONS FROM INTERSTATE 19: Take the Ajo Way (260) Exit. Turn right for 6.1 miles (mile marker 165.1). Turn right to both pumping plants. FROM I-10 SOUTH: Exit 22nd Street to Mission Road. Take Mission Road to Ajo Way. NOTE: Both pumping plants are in a large complex that includes the Tucson Water Treatment Plant. Black Mountain Pipeline begins at outlet of Black Mountain Pumping Plant outlet and ends at Black Mountain Operating Reservoir. REACH 6 PIPELINE BLACK Mountain Pipeline ends at Black Mountain Operating Reservoir and Reach 6 Pipeline begins at the outlet of Black Mountain Operating Reservoir.

15 Estimated Distance Between Rectifier and Reference Electrode Replacement -Black Mountain Pipeline (BMPL) and Tucson Reach 6 Pipeline (TUC 6) Rectifier Stationing Recifier Offset from Pipeline Center (Lt or Rt) Reference Electrode Stationing Reference Electrode Offset from Pipeline Center (Lt or Rt) Estimated Linear Distance between Rectifier and Reference Electrode BMKPL Pipeline 78" ID MBP Rectifier No inside vault ' Lt 55' MBP Rectifier No ' Rt ' Rt 38.5' MBP Rectifier No ' Rt ' Rt 55' MBP Rectifier No ' Rt ' Lt = 39.5' MBP Rectifier No ' Lt ' Lt 45' MBP Rectifier No ' Lt ' Lt 28.5' MBP Rectifier No ' Lt ' Lt 28.5' MBP Rectifier No ' Lt ' Lt 28.5' MBP Rectifier No ' Lt ' Lt 28.5' MBP Rectifier No ' Lt ' Lt 28.5' MBP Rectifier No ' Lt ' Lt 28.5' TUC 6 Pipeline 72" ID TUC6 Rectifier No " Lt ' Lt 44.5' TUC6 Rectifier No ' Lt ' Lt 39.5' TUC6 Rectifier No ' Lt ' Lt 39.5' TUC6 Rectifier No ' Lt ' Lt 39.5' TUC6 Rectifier No ' Lt ' Lt 59.5' TUC6 Rectifier No ' Lt ' Lt 34.5' TUC6 Rectifier No ' Lt ' Lt 39.5' TUC6 Rectifier No ' Lt ' Lt 39.5' TUC6 Rectifier No ' Lt ' Lt 34.5' TUC6 Rectifier No ' Lt ' Lt 45.5' TUC6 Rectifier No ' Lt ' Lt 34.5' TUC6 Rectifier No ' Lt ' Lt 44.5' TUC6 Rectifier No ' Lt ' Lt 57.5'

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