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HomeMy WebLinkAboutR-2010-052 PUMPS Agreement Water Supply Well Installation RESOLUTION NO. 2010-052 A RESOLUTION OF THE CITY OF DANIA BEACH,FLORIDA,AUTHORIZING THE CITY MANAGER TO PURCHASE ENGINEERING SERVICES FROM PUBLIC UTILITIES MANAGEMENT AND PLANNING SERVICES, INC. RELATING TO THE CITY'S NEW WATER SUPPLY WELL INSTALLATION INCLUDING PERMITTING AND SAFE YIELD STUDY OF GROUNDWATER SUPPLY; PROVIDING THAT THE COST FOR SUCH SERVICES SHALL NOT EXCEED FORTY SIX THOUSAND SIX HUNDRED DOLLARS ($46,600.00); PROVIDING FOR FUNDING; PROVIDING FOR CONFLICTS; FURTHER, PROVIDING FOR AN EFFECTIVE DATE. BE IT RESOLVED BY THE CITY COMMISSION OF THE CITY OF DANIA BEACH, FLORIDA: Section 1. That that certain agreement with Public Utilities Management And Planning Services,Inc. in an amount not to exceed Forty Six Thousand Six Hundred Dollars($46,600.00)for engineering services for Groundwater Monitoring with the proposal in substantial form as Exhibit "A", attached, is approved and the appropriate City officials are authorized to execute it. Section 2. That the City Manager and City Attorney are authorized to make minor revisions to the agreement for such services which are deemed necessary and in the best interest of the City of Dania Beach. Section 3. That the funding of this work was planned and is available in the Water Fund, Capital Improvement- Well Construction and Contingency account # 401-3302-533.63-10. Section 4. That all resolutions in conflict with this Resolution are repealed to the extent of such conflict. Section 5. That this Resolution shall be in force and take effect immediately upon its passage and adoption. PASSED AND ADOPTED on April 14, 2010. MCELY MAYOR—COMMISSIONER D'S FIRST AT EST: LOUISE STILSON, CMC , CITY CLERK p� '�"•VRATED �� APPROVED A AND CORRECTNESS: l TO THOM S J. 13 O CITY ATTORNEY 2 RESOLUTION#2010-052 ATTACHMENT A City of Dania Beach City Task Order No. I Water Use Permitting April 5, 2010 OVERVIEW The City of Dania Beach(hereinafter City)requested the Public Utilities Management and Planning Services,Inc. (hereinafter PUMPS)to provide engineering services related to Water Use Permitting for the City of Dania Beach. More specifically, the City has requested that PUMPS prepare responses to requests for additional information from the South Florida Water Management District (District)related to the City's WUP. This Task Order includes assisting the City of Dania Beach in preparing responses related to groundwater modeling. Subsequent requests for additional information will be addressed by separate Task Orders on an as needed basis. A budget for negotiations with District staff is included in this Task Order to address minor comments up to a set limit and as approved by the City. The City obtains its raw water supply from two wells Biscayne aquifer wells described in the City's water use permit as Production Well G (PW-G) and Well H (PW-H). Production Well G has a design capacity of 1400 gallons per minute (gpm), while Well H has a design capacity of 1400 gpm but rarely runs over 1100 gpm due to upconing of saltwater. Well H is designated as a back-up well. Only one well runs at any point in time. The District's primary issue is saltwater intrusion. Withdrawals from these wells are permitted via a three year Water Use Permit No. 06-00187-W issued on 2/1/2010 by the District that expires 12/31/2012. The permit was issued for 1.8 MGD,but restricted to 1.1 MGD until a safe yield study is performed to indicate that 1.8 MGD is a sustainable yield. This Task Order addresses engineering services for the permitting assistance(i.e.,Task 3)to prepare 3 RESOLUTION #2010-052 responses to the RFI from the District. Additional services will be required for follow up services should additional RFI be received from the District. This Task Order is organized authorization is broken down into tasks as follows: Task 1 —Preliminary Design (not used) Task 2 —Final Design (not used) Task 3 —Permitting Task 4 —Construction Bid Services (not used) Task 5 —Construction Contract Administration (not used) Task 6 —Detailed Observation (not used) Task 7 —Additional Services (not used) SCOPE OF SERVICES TASK 3—PERMITTING The City has received its renewed water use permit. However the special conditions require a safe yield model of the well field. This Task Order is designed to fulfill that need. It is understood that the modeling effort will be subcontracted to McVicar, Federico and Lamb/Hazen and Sawyer, P.C. as they have District-recognized groundwater modeling expertise that would benefit the City. McVicar, Federico and Lamb will initiate discussions with District permitting staff on the issues associated with these wells and how the new well will impact the modeling. TASK 3.1 —GROUNDWATER MODELING Develop a groundwater model that follows District criteria for assessment of potential impacts to saltwater intrusion within the area of influence. The groundwater model will be a three-dimensional, density driven MODFLOW based model to evaluate the City's wells and desired withdrawals (SEAWAT is suggested). A modeling grid will be created of sufficient size to allow assessment of saltwater intrusion and upconing impacts. The model will include the water table aquifer/Biscayne Aquifer. Major canals will be simulated using MODFLOW RIVER package and SEAWAT. The model will be calibrated to the average steady-state conditions and then use 90-day no recharge 4 RESOLUTION #2010-052 conditions for required impact analysis. Groundwater modeling will be performed to provide reasonable assurance that the requested withdrawals will not cause harm to or adversely impact saltwater intrusion. Modeling runs will be performed with and without consideration of adjacent users. Graphics will be developed to locate the 0.1-foot drawdown contour for the proposed withdrawal from the water table aquifer. A description of each modeling run will be included in the groundwater modeling report in addition to basis for model selection, input parameters, and assumptions. The groundwater modeling will include the following sub-tasks: Task A: Data collection and analysis—Historical hydrogeological data will be collected for input in the model. Due to time and budget limitation, only existing data will be collected and analyzed. These data may include the water levels and stages, saltwater intrusion distributions, water uses, rainfall and evapotranspiration, land use, etc. The calibration targets and duration will also be established. Modelers will review the current water use and water level data. Task B: Model development and calibration—A conceptual three-dimensional groundwater model (MODFLOW/SEAWAT) will be developed. The model will include a grid that establishes horizontal and vertical extents, and boundary conditions. Model calibration to steady-state conditions will be performed. Task C: Impact analysis —After the model is calibrated, the hydraulic impact on saltwater intrusion will be assessed based on a 90 day no-recharge condition, using procedures provided by the District. Results of the groundwater modeling effort will be compiled in a groundwater modeling report. A DRAFT version of the groundwater modeling report will be submitted to the City for review. A review meeting will be held with City staff to obtain comments within two weeks of submittal of the groundwater modeling report. PUMPS will prepare meeting minutes to document discussions from 5 RESOLUTION #2010-052 the review meeting. Comments will be incorporated and a final version of the groundwater modeling report will be submitted to the City and included as part of the response to the District. TASK 3.2 —RESPONSE TO DISTRICT RFIs The project delivery team will attend a meeting with District staff to obtain clarification on additional information related to the results of the groundwater modeling effort. This meeting will be used to clarify specific responses and discuss expectations from the permit reviewers and data needs. Assist the City in preparing responses to District comments related to groundwater modeling. It is assumed that up to three meetings will be held with District staff to review draft plans and /or the groundwater modeling report. Meeting minutes will be prepared to summarize direction and guidance from District staff. PUMPS will provide general permitting assistance to the City as requested to finalize responses to additional data requests from the District. A budget of approximately $3,000 has been included in this Task Order for use on an as needed basis to assist the City with negotiations and other related activities. Services will be rendered as requested by the City. List of Deliverables: Deliverable Description 3.1.1 Draft copy of Groundwater Modeling Report 3.1.2 Final copy of Groundwater Modeling Report 3.2.1 Response to District's RFI 3.2.2 General permitting assistance COMPENSATION Compensation for the above services will be based on a not-to-exceed-basis based on the level of effort noted in that attached fee schedule and as shown below: RESOLUTION #2010-052 Deliverable Description Estimated Cost 3.1.1 Draft copy of Groundwater Modeling Report $26,200 3.1.2 Final copy of Groundwater Modeling Report $12,400 3.2.1 Response to District's RFI $5,000 3.2.2 General permitting assistance $3,000 Total Cost $46,600 The total cost for services for this package will not exceed$46,600.00 without formally amending the Scope of Work. SCHEDULE The schedule for the proposed services is presented below: Estimated Deliverable Description weeks from NTP 3.1.1 Draft copy of Groundwater Modeling Report 10 3.1.2 Final copy of Groundwater Modeling Report 16 3.2.1 Response to District's RFI 16 3.2.2 General permitting assistance 16 Total 16 NTP=Notice to proceed KEY ASSUMPTIONS A list of project assumptions is presented below: 1) The City shall provide a copy of requested data in both electronic and hard copy formats within three weeks of said request 2) The City shall provide written comments within two weeks of submittal of document 3) The City will pay for all permit fees 7 RESOLUTION 92010-052 4) The City will be provided with six (6)copies of draft documents 5) The City will be provided with ten(10) copies of final documents 6) The basis of review will be based on criteria specified in Chapter 40E-20, F.A.C. (40E- 20.301 —Conditions for Issuance of General Water Use Permits)effective October 14,2008, and the Basis of Review for Water Use Applications within the South Florida Water Management District also effective October 14, 2008 7) PUMPS will not proceed with work above the level of effort estimated in the attached fee schedule without prior approval from the City 8 RESOLUTION#2010-052