Loading...
HomeMy WebLinkAbout2003-045 / /. lV, i ATTACHMENT A ENGINEERING SERVICES WORK AUTHORIZATION DATE : WORK AUTHORIZATION NO. 4 FOR CONSULTING SERVICES COUNTY NO . CAMP DRESSER & McKEE INC . CDM PROJECT NO . (consultant) L Project Description CDM to provide engineering services to specify well rehabilitation activities necessary at the South County Water Treatment Plant. Permitting, bidding, and construction services also included. II. Scope of Services Engineering services to assist County staff with preparation of plans and specifications, permitting, bidding, and construction oversight of well rehabilitation at the South County Water Treatment Plant (See Attachment B) . III, Consulting Engineer Insurance Requirements A . Workers Compensation Insurance in accordance with Florida Statutes , B . Comprehensive and Automotive Liability with a minimum coverage of $ 1,000,000 per occurrence for bodily injury or accidental death. C . Comprehensive General Liability with a minimum limit of $ 1 , 000,000 covering bodily injury and property damage . D . Liability for Property Damage, while operating motor vehicle, with minimum limits of $ 1 ,000, 000 per occurrence . E . Contractual Liability including limits established for Items IIIB, C, and D above . IV. Compensation for Services Well Rehabilitation Services $ 117,075 Upper Limit Compensation is to be paid on a salary cost basis plus other direct costs on an as-needed basis . (See Attachment Q . CDM will submit monthly invoices for services performed . A- 1 mh 1092. doc A . Salary Cost Basis with Upper Limit For the Basic Services performed on a salary cost basis with an upper limit, IRC agrees to pay CDM as follows : For engineering services performed by CDM, the payment will be equal to the salary cost of such services for each employee times 2 .35 for overhead and profit plus actual out-of-pocket expense costs . Salary cost is equal to 1 . 393 times direct salary costs and is defined as the cost of salaries (including sick leave, vacation, and holiday pay applicable thereto) for time directly chargeable to the project; plus unemployment, excise, and payroll taxes; and contributions for social security, employment compensation insurance, retirement benefits, and medical and other group insurance benefits. Actual out-of-pocket expense costs are all costs other than salary costs that are incurred during the progress of the work. The actual out-of-pocket expense costs include : air fare, automobile rental if required, mileage charges, parking tolls, taxi, meals and lodging, all in accordance with reimbursement rates set forth in Section 112 . 061 Florida Statutes ( 1999), as amended, and telephone, printing and reproduction costs, and other miscellaneous costs incurred specifically for this project. The maximum cost for blueprint sheets is $ 1 . 10 . The maximum cost for mylar sheet is $ 11 . 00 and a sepia sheet is $5 . 00 . The charges for in-house computer program and word processor usage will be at CDM 's regular rates . For outside computer services, charges will be made at invoiced cost to CDM . For the basic services performed on a salary cost basis with an upper limit, IRC agrees to provide a written request before work is started by CDM. SUBMITTED BY: APPROVED BY: CAMP DRESSER & McKEE INC . INDIAN VVER COUNTY (Consultant) BOAR COUWTY COMMISSIn RS By B lex H. Makled, P . E ., DEE nneth R. Macht Vice President Chairman Date Date February 18 , 2003 Jeffery K. Barton Cl o e ourt APPROVED : By unt � d Deputy Clerk Y mmistrat r � A2 mnio92. eoc ATTACHMENT B SCOPE OF WORK SOUTH COUNTY WATER TREATMENT PLANT WELL REHABILITATION SERVICES Backg1ound Indian River County Utility Services contracted with Camp Dresser & McKee Inc. (CDM) in May 2000 to investigate accelerated cartridge filter clogging at the South County Water Treatment Plant. This was the first of four work authorization to assist the County in assessing the condition of the wellfield and improving its reliability. Records indicated that major components of these wells had not undergone major service since they were initially installed up to twenty years ago . Previous work authorizations investigated field conditions and included removal and inspection of the pumps, specific capacity testing, video inspection of wells, pump and valve rebuilding, restoration of wells to service, acidization, redevelopment, well borehole reaming, disinfection, well column extensions, and flow meter acquisition. In some instances, plans for installation of new equipment or rebuild of existing equipment were modified as a result of pump failures . CDM and subcontractors worked with County staff to ensure that the plant's level of service was maintained especially during drought conditions . CDM prepared and submitted to County Utilities staff a summary of well rehabilitation work performed to date in August 2002 along with monthly and five-year maintenance recommendations . Additional recommendations were identified in order to enhance operations and to account for declining regional water levels . Services CDM has prepared this work authorization for well rehabilitation services to assist County staff in efforts to complete the upgrading of various wellfield appurtenances and equipment. Task 1 - Rehabilitation of Existing Wells Well column extension to 100 feet is necessary to account for the declining regional water table elevations and to reduce the risk of air intrusion. The following is required at each well : Well No. 1 Extend well column - 20 feet Modify pressure siistaining valve (by existing contract) Install telemetry system Install flow meter (by existing contract) Change packing glands to mechanical seal Well No. 2 Extend well column - 40 feet Modify pressure sustaining valve (by existing contract) Install telemetry system Install flow meters (by existing contract) Change packing glands to mechanical seal B - 1 mh 1092.doc Well No . 4 Install new 10-inch diameter pump with mechanical seal (IRC direct purchase) Install well column — 100 feet Conduct plumb test of well Construct well pedestal Install pressure sustaining valve (IRC direct purchase) Install telemetry system Install isolation valve to well piping manifold Rebuild existing pump to serve as spare Install piping /valves at wellhead Well No . 5 Extend well column — 40 feet Conduct plumb test of well Modify pressure sustaining valve Install telemetry system Well No . 6 Extend well column — 40 feet Conduct plumb test of well Modify pressure sustaining valve Install telemetry system General Telemetry system PLC hardware /programming interface Note : "by existing contract" items already under way by Utilities Department Work necessary at Well No. 3 to be completed in Task 2. Subtask 1 . 1 — Preparation of Plans and Technical Specifications CDM will prepare plans and specifications to include the above items to complete the well rehabilitation efforts for existing wells at the facility. CDM will provide digital drawing files and technical specifications to the County for bidding purposes . Specifications for telemetry system / PLC interface and pump rebuilding are to be included . IRC Utilities will prepare the necessary Contract Forms (Division 0 and 1) for the project. Subtask 1 . 2 — Bidding Services CDM will assist the County in obtaining bids for the well rehabilitation, assist the County in evaluating the bids and in assembling and awarding the contract, and will arrange and preside over a preconstruction conference . Detailed services include the following: B-2 mh 1092.doc ■ CDM will provide digital files of plans and technical specifications to the County. County will advertise for bids, and provide the documents to prospective bidders . ■ CDM will coordinate the advertisement of the bid, respond to communications from Contractors, and issue addenda, as necessary. ■ CDM will prepare a detailed final opinion of probable cost. ■ CDM will attend the bid opening, evaluate bids, and recommend a bidder for Award of Contract to the County. ■ After issuance of a Notice of Award by the County, CDM will assist the County in preparing the construction contract, request and review information from the Contactor, and advise the County on finalizing the Contact. ■ CDM will arrange for a preconstruction conference to be attended by the Contractor, the County, other interested parties, and CDM's representatives . Preconstruction conference minutes will be prepared and distributed to all attendees . The Notice to Proceed will be prepared by CDM for issuance to the Contractor . Subtask 1 . 3 - Services During Construction These services shall include the following parts : Part A CDM will consult with and advise the County and act as its representative as provided in the General Conditions of the construction contract. Consult with and advise the County as to the acceptability of substitute materials and equipment proposed by the Contractor when substitution is permitted by the Contract Documents . Part B CDM will make visits to the site at intervals appropriate to the various stages of construction to observe the progress and quality of the executed work of the Contractor and to determine in general if such work is proceeding in accordance with the Contract Documents . During such visits and on the basis of on-site observations; CDM shall keep the County informed of the progress of the work, shall endeavor to guard the County against defects and deficiencies in such work and may disapprove or reject work as failing to conform to the Contract Documents , Part C CDM will review and approve Shop Drawings and samples, the results of tests and inspections and other data that the Contractor is required to submit. B-3 mh 1092.doc Part D CDM will issue County instructions to the Contractor and issue necessary interpretations and clarifications of the Contract Documents . Have authority as the County's representative, to require special inspection or testing of the work. Act as initial interpreter of the requirements of the Contract Documents regarding the execution and progress of the work. Part E Based on CDM's on-site observations and on review of applications for payment and the accompanying data and schedules, CDM will determine the amounts owing to the Contractor and recommend in writing payments to the Contractor in such amounts . Part F CDM will conduct a final check to determine if the work has been completed in accordance with the Contract Documents . Part G CDM will undertake project quality management to meet budget and time constraints; generate correspondence to the County, Contractor, regulatory agencies, and other parties; provide monthly project status reports; prepare monthly progress meeting minutes; and maintain comprehensive project records and documentation on file . Part H CDM will provide services in connection with preparing change orders to reflect changes to the construction project. Task 2 - Replacement of Well No 3 The County has recently experienced problems with production Well No . 3. County staff authorized a video log of the well that indicated a casing break. Repair of the casing is possible; however, due to the break location and age of the well, full replacement is recommended . Letter modification of the SJRWMD water use permit will be required to authorize installation of the replacement well and abandonment of the existing well . The new well would be tied into existing transmission piping near the existing well. Preliminary discussions with SJRWMD staff indicate that obtaining the required letter modification of the permit is feasible . Subtask 2. 1 - Design and Permitting CDM will provide configuration of the new production well based on the existing well construction details, input from IRC staff, and SJRWMD requirements . Casing sizes, depths, B -4 mh1092. aoc and materials will be selected . The wellhead design completed under the existing contract will be incorporated into the construction specifications . The well will connect to the raw water transmission main that conveys water to the plant. Specifications for materials, equipment, and drilling techniques will be prepared . CDM will prepare contract drawings for construction of the new well and appurtenances . Proper siting of the well and associated appurtenances will be critical to the success of the project. The connecting piping will be PVC or other suitable material acceptable to County staff and will be provided with isolation valves as required . CDM will obtain the services of a professional land surveyor to provide horizontal control of the proposed well and associated appurtenances, if necessary. The production well design is anticipated to be similar to the existing wells; however, the casing size may be changed to facilitate pump equipment installation and removal . The casing size will be coordinated with SJRWMD staff as required . The control system concept and supervisory control and data acquisition system for the existing well will be used for the new well . The electric utility service for the existing well will be used for the new well . The telemetry system obtained in Task 1 will be installed as well as new pressure sustaining valves and flow meter (purchased through existing contract) . In the event that SJRWMD and IRC staff negotiate that the new well is to be located in a different location, additional services may be required and are not included in this work authorization. Contract documents and specifications will be prepared for submittal at the completion level . One design review workshop / meeting will be held with County staff. Part A — Design Drawings Detailed design will consist of preparation of the well and piping drawings . Standard details will also be prepared . Construction drawings will be prepared using AutoCAD format. Part B — Contract and Technical Specifications The technical specifications will detail the materials and methods of construction to be utilized . Consultant's standard master construction specifications will be used as the basis for the technical specifications for the project. Preferred manufacturers and suppliers will be listed in the specifications . IRC Utilities will prepare the necessary contract forms (Division 0 and 1 ) for the project. Specifications for well abandonment will also be prepared. Part C - Design Progress Submittals Construction drawings and specifications will be produced and submitted for County final review at the completion level . The drawings will be provided on bound 11 x 17-inch sheets . The final design submittal will be defined as a set of drawings and specifications that is complete and biddable, but subject to final comment from FDEP and the County. B -5 mh I092. aoc Part D - Final Plan Preparation The final design, 100 percent complete documents, will incorporate comments from the County and FDEP. The final design documents will consist of the County front-end documents, technical specifications, and engineering drawings . The final design documents will incorporate designs for the production well and related wellfield facilities . Part E - Permitting and Agency Coordination This task will establish the permitting requirements for the proposed production well replacement project and where appropriate, initiate the permit application process . Construction permit applications or modification applications will be prepared and submitted to the following agencies on behalf of the County: ■ Indian River County Building Department (Assist contractor with obtaining required permits) ■ Florida Department of Environmental Protection • St. Johns River Water Management District It is assumed that the County will pay all permit application fees . Up to two responses for additional requests for information will be provided during the permitting process . Subtask 2.2 — Bidding Services CDM will assist the County in obtaining bids for the well replacement, assist the County in evaluating the bids and in assembling and awarding the contract, and will arrange and preside over a pre-construction conference . Detailed services include the following: ■ CDM will provide digital files of plans and technical specifications to the County. County will advertise for bids, and provide the documents to prospective bidders . ■ CDM will coordinate the advertisement of the bid, respond to communications from Contractors, and issue addenda, as necessary. ■ CDM will prepare a detailed final opinion of probable cost. ■ CDM will attend the bid opening, evaluate bids, and recommend a bidder for Award of Contract to the County. ■ After issuance of a Notice of Award by the County, CDM will assist the County in preparing the construction contract, request and review information from the Contactor, and advise the County on finalizing the Contact. ■ CDM will arrange for a pre-construction conference to be attended by the Contractor, the County, other interested parties, and CDM's representatives. Pre-construction conference B-6 mh 1092.doe minutes will be prepared and distributed to all attendees . The Notice to Proceed will be prepared by CDM for issuance to the Contractor. Subtask 2 . 3 — Services During Construction Construction services to be provided for the construction of the replacement well consist of the following: Part A - Detailed Observation of Construction Provide full-time, on-site observation of construction activities by one or more representatives as authorized and approved by the County. CDM will provide on-site construction observation services during the construction of the production well only. These services consist of daily observation of construction activities, collection and analysis of drill cuttings and water samples, testing, and certification of construction. CDM's on-site representative will prepare and submit weekly progress reports to the County during construction. The weekly progress reports shall include project status, contractor manpower, materials and equipment received, work performed, problems encountered and rectification, and weather conditions . CDM will also responsible for on-site construction observation services during pump installation, testing, flushing, connections at both ends of the new piping from the well, and electrical /instrumentation appurtenances . Part B - Review Pay Requests CDM's representative will note actual quantities of materials used, depths drilled, well development time utilized, etc . Contractor requests for payment will be reviewed to verify the requests are consistent with the amount of work accomplished . Part C - Issue Interpretations CDM will issue necessary interpretations and clarifications of the construction contract documents, in writing, and prepare change orders as required . CDM will interpret the requirements of the construction contract documents, evaluate the work performed thereunder, and make recommendations on any claims by the Contractor. Part D - Report CDM will prepare a report documenting the well construction activities, well construction details, water quality, and well performance. Part E - Certificate of Completion CDM will prepare a certificate of completion for the new well and raw water piping facilities . Record drawings of the new facilities will be prepared . A mylar set will be included along with four signed and sealed blueline copies . B -7 mh 1092. doc Subtask 2 . 4 — Operational and Start-up Services During this phase, CDM will provide services to the County to conduct a systems checkout, including troubleshooting of equipment and instrumentation installed as part of the project. CDM will provide on-site advice and troubleshooting throughout the start-up . Once the new well and associated facilities are fully operational, CDM will assist County staff with operation fine-tuning. All contract documents and computer disks will be catalogued and delivered to the County. Task 3 — Sand Separator County staff indicated that micron filter elements upstream of the membrane skids required frequent change due to sand from the raw water production wells . Field investigations by CDM and County staff identified wells that indicated elevated frequency of sand . CDM has investigated various sand separation equipment for potential use at the facility. CDM assisted County staff with pilot testing of a small-scale unit and determined that installation of a full- scale system would be of great benefit to the operation of the facility. Subtask 3 . 1 — Technical Specification Preparation CDM will prepare a technical specification for a full-scale sand separator system for raw water feed to the facility. The specification will be provided to the County for incorporation into ongoing work currently contracted . Schedule CDM to perform services as follows : Task/Subtask Estimated Duration (From Authorization) Task 1 — Rehabilitation of Existing Wells Plans and Technical Specifications — Draft Bidding Services Completed 1 .5 months Construction Services Completed 3 . 5 months 7.5 months Task 2 — Replacement of Well No 3 Design and Permitting Bidding Services Completed 3 months 5 months Construction Services Completed Operational and Startup 9 months 10 months Task 3 — Sand Separator Specifications 1 month B -8 mh1092.doc ATTACHMENT C- 1 ESTIMATED PROJECT LABOR DISAGGREGATION ENGINEERING SERVICES FOR WELL REHABILATION SOUTH COUNTY WTAER TREATMENT PLANT Task Principal/ Senior Professional Professional Officer Associate Professional II Project ffTASKKRehabilitation of Existing Wells I Drafter Administrator Total 1 . 1 - Plans and Technical Specifications 48 40 16 24 8 1 . 2 - Bidding Services 4 4 24 124 Subtask 1 . 3 - Services During Construction 24 16 8 6 48 16 0 16 16 80 160 0 40 280 TASK 2 - Replacement of Well No, 3 Subtask 2. 1 - Design and Permitting 8 8 Subtask 2 . 2 - Bidding Services 24 66 12 8 24 144 4 q Subtask 2 .3 - Services During Construction 24 16 16 0 16 8 8 24 80 Subtask 2.4 - Operational and Startup Services 80 96 0 24 240 • Task 3 - Sand Separator 4 4 8 16 g 0 12 52 Subtask 3. 1 - Technical Specification Preparation 4 8 16 40 8 0 16 92 TOTAL - TASK 1 , 2 AND 3 52 208 260 340 16 172 1092 C- 1 mh1092.doc ATTACHMENT C-2 PROJECT BUDGET ENGINEERING SERVICES FOR WELL REHABILITATION SOUTH COUNTY WATER TREATMENT PLANT PROJECT DESCRIPTION: Well Rehabilitation Services _Category Hours Total Officer Principal /Associate `H $2,420 Senior Professional 52 $2,496 Professional II 208 $8,320 Professional I 260 $8,320 Drafter 340 $8,500 Project Administration 16 $320 172 3 096 1 , 092 Direct Salary Cost $31472 Indirect Salary Cost (Fringe Benefit 0 .393 x Direct Salary) $ 13J54 SALARY COST $46,626 Salary Times Multiplier (2 .35) $ 109,572 OTHER DIRECT COST Travel Expenses 3 000 Communication and Printing 2,500 Computer Services 21000 TOTAL OTHER DIRECT COSTS TOTAL ESTIMATED COSTS — UPPER LIMIT 7 500 117 072 TOTAL ESTIMATED ENGINEERING FEE (UPPER LIMIT) $ 117,075 C -2 mh 1092. doc