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Home My WebLink AboutDocumentation_Regular_Tab 23_11/15/2021Agenda Item #23. Regular Council STAFF MEMO Meeting: Regular Council - Nov 15 2021 Staff Contact: Matthew Hammond, Utilities Department: Utilities Director EMW I M Authorize Piggyback Contract and Work Authorization with Florida Design Drilling for Floridan Well Rehabilitation The Village receives water for its Water Treatment Plant (WTP) from 14 groundwater wells (10 surficial aquifer wells and 4 Floridan aquifer wells). In July 2020 the Village, with assistance from Mock Roos & Associates and Connect Consulting, completed a Wellfield Condition Assessment to evaluate the performance and water quality of the Village's surficial aquifer and Floridan Aquifer public water supply production wells and provide recommendations for well rehabilitation or replacement if, and where, needed. Based on the results of the study and input from Village WTP operators three of the four Upper Florida Aquifer wells were found to be operating at a reduced capacity or inoperable. Because the Village's water use permit (No. 50-00046-W) through the South Florida Water Management District (SFWMD) allocates 76% of the allowed groundwater withdrawals to the Upper Floridan Aquifer, investment into the rehabilitation of these wells is critical to the successful operation of the Water Treatment Plant. Design for the rehabilitation of Well Nos. R2, R3 and R4 was completed by Mock Ross & Associates and Connect Consulting through Work Authorization MR U21.02 and the underground utility work to provide a safe means of disposing the water generated was completed by Johnson -Davis, Inc. To ensure the lowest possible price, staff is recommending that the Village piggyback the current Town of Jupiter contract with Florida Design Drilling Corporation. This selection by the Town of Jupiter was completed through a competitive selection process — W1957 — May 2020. Piggyback contracts are a form of intergovernmental cooperative purchasing in which an entity is extended the pricing and terms of a competitively awarded contract by another federal, state or municipal government. When used correctly, piggyback contracts can save Village time and resources and leverage spending through economies of scale. If approved, the Village would accept Florida Design Drilling's pricing by piggybacking the Town of Jupiter contract including all terms, conditions and pricing therein. The term of the contract is through October 20, 2022 with the option for one (1) additional one-year renewal. The construction price for the proposed Floridan Well Rehabilitation, based on the pricing in the Town of Jupiter Floridan Well Rehabilitation Program Contract, is $416,979.03 including a $50,000-000 contingency allowance for unknown conditions. The scope and quantities in the proposed Work Authorization have been reviewed by Mock Roos, the consulting engineer for the project. Budget Summary - 401-411-663.600 - Improvements Other Than Buildings: Page 397 of 433 Agenda Item #23. Project Budget Encumbered Proposed Floridan Well Rehabilitation $171657000.00 $0.00 (Construction) Surficial Well Replacement - $520000.00 $0.00 Well No. S19 ' (Construction) Temporary Concentrate $2507000.00 $117388.48 Disposal (Construction) Account Total $179357000.00 $117388.48 $416Y979.03 9 $416)979.03 Projected Projected Remaining Total $0.00 $416Y979.03 $5205000.00 $5201000.00 $1601000.00 $171)388.48 $6805000.00 $1,1085367.51 NOTE: Due to document size, the complete piggyback agreement and supporting exhibits can be obtained from the Utilities Department upon request. This document and any attachments may be reproduced upon request in an alternative format by completing our Accessibility Feedback Form, sending an e-mail to the Village Clerk or calling 561-768-0443. BUDGETED AMOUNT: AVAILABLE AMOUNT: EXPENDITURE AMOUNT: $1,9353000 $1,923,611.52 $416,979-03 Additional Budgetary Information: Funding Source(s): Water Enterprise Fund Authorize piggyback contract and Work Authorization with Florida Design Drilling for Floridan Well Rehabilitation. Piggyback Agreement for Well Rehabilitation Services (Florida Design Drilling Corporation).ada Proposed Work Authorization No. 1 - Floridan Aquifer Well Rehabilitation - Florida Design Drilling.ada Page 398 of 433 Agenda Item #23. VILLAGE OF TEQUESTA AGREEMENT FOR WELL REHABILITATION SERVICES THIS AGREEMENT FOR WELL REHABILITATION SERVICES is entered into and effective this day of November, 2021, by and between the VILLAGE OF TEQUESTA, a Florida municipal corporation with offices located at 345 Tequesta Drive, Tequesta, Florida 33469, organized and existing in accordance with the laws of the State of Florida, hereinafter "the Village"; and FLORIDA DESIGN DRILLING CORPORATION, a Florida corporation with offices located at 7733 Hooper Road, West Palm Beach, FL 33411, hereinafter "the Contractor", and collectively with the Village, "the Parties". WITNESSETH The Village and the Contractor, in consideration of the mutual covenants contained herein and for other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged by both Parties, hereby agree as follows: 1. SCOPE OF SERVICES: The Parties hereby agree to enter into this Agreement whereby the Contractor shall all permits, labor, equipment and materials necessary to investigate, rehabilitate, and/or maintain water production wells for the Village. The work as specified includes, but is not limited to, permitting; mobilization; removal of portions of the existing wellhead; removal of the drop pipe and appurtenances; well kill(s) as required; down -hole video and geophysical logging under static and flowing conditions; plumbness and alignment testing of existing well casings, acid treatment of the completion interval; removal and treatment of the residual spent acid water; purging of the well, flow testing, formation water treatment and disposal system (including temporary piping and pumps); reinstallation of the pump, drop pipe, wellhead ready for service; well facility disinfection, purging and bacteriological clearance, demobilization and restoration of well sites; and completion of all required work to the extent the well facility has been successfully rehabilitated, returned to service, and accepted by the Village based on the intent of this Agreement and supporting documentation. Additional well maintenance and rehabilitation activities may also include miscellaneous welding, mechanical repairs, and other incidentals as outlined in the supporting documentation of this Agreement. The Parties agree to enter into this Agreement and piggyback for the provision of well rehabilitation services at the unit prices described in Contractor's Contract with the Town of Jupiter, Florida ("Town of Jupiter Contract"), awarded through ITB No. W 1957. Said Contract and bid package, including all terms, conditions, Page 1 of 8 Page 399 of 433 Agenda Item #23. specifications, and attached addenda are hereby fully incorporated into this Agreement and attached hereto as Exhibit "A". Authorization to piggyback on the Town of Jupiter Contract is hereby fully incorporated into this Agreement and attached hereto as Exhibit "B". 2. COMPENSATION: In consideration for the above Scope of Services, pricing shall be pursuant to the unit prices provided in Exhibit "A". The Village makes no express or implied guarantee as to the total quantity of services purchased under this Agreement. Pursuant to the Town of Jupiter Contract, payment shall be made in accordance those procedures established in Article 15 of the Standard General Conditions of the Construction Contract, as provided within Exhibit "A". 3. TERM; TERMINATION; NOTICE: Pursuant to the Town of Jupiter Contract, the original contract term expired on October 20, 2021. The Town of Jupiter renewed the contract through the Contract's Change Order No. 1, extending the term until October 20, 2022. The Town of Jupiter Contract's Change Order No. 1 is fully incorporated into this Agreement and attached hereto as Exhibit "C". This Agreement may be terminated by either party in accordance with Article 16 of the Standard General Conditions of the Construction Contract within Exhibit "A". Specifically, the Village may terminate this Agreement for convenience upon seven (7) days written notice to the Contractor. In addition, the Village may terminate this Agreement for cause if the Contractor is in default of any of the Agreement's terms, obligations, restrictions, or conditions, and so long as the Village terminates in accordance with the following procedures — If the Village provides the Contractor written notice of the Contractor's default and ten (10) calendar days thereof to correct or take action to correct such default, and if the Contractor subsequently fails to timely correct the condition of the default or if the default is not remedied to the satisfaction and approval of the Village, the Village shall have all legal and equitable remedies available to it, including but not limited to termination of this Agreement and recovery of any related claims, costs, losses and damages arising from the Contractor's default. Notice shall be considered sufficient when sent by certified mail or hand delivered to the Parties during regular business hours at the following addresses: Page 2 of 8 Page 400 of 433 Agenda Item #23. Village Contractor Village of Tequesta Florida Design Drilling Corporation 345 Tequesta Drive 7733 Hooper Road Tequesta, FL 33469 West Palm Beach, FL 33411 Attn: Matthew Hammond Attn: Jeffrey Holst Utilities Director Senior Vice President 4. INSURANCE: The Contractor shall provide proof of workman's compensation insurance and liability insurance in such amounts as are specified in Exhibit "A" and shall name the Village as an "additional insured" on the liability portion of the insurance policy. 5. INDEMNIFICATION: The Contractor shall at all times indemnify, defend and hold harmless the Village, its agents, servants, and employees, from and against any claim, demand or cause of action of whatsoever kind or nature, arising out of error, omission, negligent act, conduct, or misconduct of the Contractor, its agents, servants, or employees in the performance of services under this Agreement. Nothing contained in this provision shall be construed or interpreted as consent by the Village to be sued, nor as a waiver of sovereign immunity beyond the waiver provided in Section 768.28, Florida Statutes. 6. PUBLIC ENTITIES CRIMES ACT: As provided in Sections 287.132-133, Florida Statutes, by entering into this Agreement or performing any work in furtherance hereof, the Contractor certifies that it, its affiliates, suppliers, subcontractors and consultants who will perform hereunder, have not been placed on the convicted vendor list maintained by the State of Florida Department of Management Services within thirty-six (36) months immediately preceding the date hereof. This notice is required by Section 287.133(3)(a), Florida Statutes. 7. INDEPENDENT CONTRACTOR: It is specifically understood that the Contractor is an independent contractor and not an employee of the Village. Both the Village and the Contractor agrees that this Agreement is not a contract for employment and that no relationship of employee —employer or principal —agent is or shall be created hereby, nor shall hereafter exist by reason of the performance of the services herein provided. 8. INSPECTOR GENERAL: Pursuant to Sections 2-421 2-432 of the Palm Beach County Code of Ordinances, the Office of the Inspector General has jurisdiction to investigate municipal matters, review and audit municipal contracts and other transactions, and make reports Page 3 of 8 Page 401 of 433 Agenda Item #23. and recommendations to municipal governing bodies based on such audits, reviews, or investigations. All parties doing business with the Village shall fully cooperate with the inspector general in the exercise of the inspector general's functions, authority, and power. The inspector general has the power to take sworn statements, require the production of records, and to audit, monitor, investigate and inspect the activities of the Village, as well as contractors and lobbyists of the Village in order to detect, deter, prevent, and eradicate fraud, waste, mismanagement, misconduct, and abuses. 9. E-VERIFY ELIGIBILITY: The Contractor warrants and represents that it is in compliance with Section 448.095, Florida Statutes, as may be amended. No later than January 1, 2021, the Contractor shall: (1) register with and use the E-Verify System (E-Verify.gov) to electronically verify the employment eligibility of all newly hired workers; and (2) verify that all of the Contractor's subconsultants performing the duties and obligations of this Agreement are registered with and use the E-Verify System to electronically verify the employment eligibility of all newly hired workers. The Contractor shall obtain from each of its subconsultants an affidavit stating that the subconsultant does not employ, contract with, or subcontract with an Unauthorized Alien, as that term is defined in Section 448.095(1)(k), Florida Statutes, as may be amended. The Contractor shall maintain a copy of any such affidavit from a subconsultant for, at a minimum, the duration of the subcontract and any extension thereof. This provision shall not supersede any provision of this Agreement which requires a longer retention period. The Village shall terminate this Agreement if it has a good faith belief that the Contractor has knowingly violated Section 448.09(1), Florida Statutes, as may be amended. If the Contractor has a good faith belief that the Contractor's subconsultant has knowingly violated Section 448.09(1), Florida Statutes, as may be amended, the Village shall notify the Contractor to terminate its contract with the subconsultant and the Contractor shall immediately terminate its contract with the subconsultant. In the event of such contract termination, the Contractor shall be liable for any additional costs incurred by the Village as a result of the termination. 10. SCRUTINIZED COMPANIES: For Contracts under $1 M, the Contractor certifies that it is not on the Scrutinized Companies that Boycott Israel List created pursuant to Section 215.4725, Florida Statutes, and that it is not engaged in a boycott of Israel. The Village may terminate this Agreement at the Village's option if the Contractor is found to have submitted a false certification as provided under Section 287.135(5), Florida Statutes, if the Contractor has Page 4 of 8 Page 402 of 433 Agenda Item #23. been placed on the Scrutinized Companies that Boycott Israel List created pursuant to Section 215.4725, Florida Statutes, or if Contractor is engaged in a boycott of Israel. For Contracts over $1 M, the Contractor certifies that it is not on the Scrutinized Companies with Activities in Sudan List, the Scrutinized Companies with Activities in the Iran Petroleum Energy Sector List, or the Scrutinized Companies that Boycott Israel List created pursuant to Section 215.4725, Florida Statutes. The Contractor further certifies that it is not engaged in a boycott of Israel, and that it does not have business operations in Cuba or Syria, as similarly provided in Section 287.135, Florida Statutes. The Village may terminate this Agreement at the Village's option if the Contractor is found to have submitted a false certification as provided under Section 287.135(5), Florida Statutes or if the Contractor has been placed on one of the aforementioned lists created pursuant to Section 215.4725, Florida Statutes. Additionally, the Village may terminate this Agreement at the Village's option if the Contractor is engaged in a boycott of Israel or has been engaged in business operations in Cuba or Syria, as defined in Section 287.135, Florida Statutes. 11. ATTORNEY'S FEES: In the event a dispute arises concerning this Agreement, the prevailing party shall be awarded attorney's fees, including fees on appeal. 12. FORCE MAJEURE: The Contractor shall not be considered in default by reason of any failure in performance under this Agreement if such failure arises out of causes reasonably beyond the control of the Contractor or its subcontractors and without their fault or negligence. Such causes include, but are not limited to: acts of God; acts of war; natural or public health emergencies; labor disputes; freight embargoes; and abnormally severe and unusual weather conditions. 13. CHOICE OF LAW; VENUE: This Agreement shall be governed and construed in accordance with the laws of the State of Florida, and venue shall be in Palm Beach County should any dispute arise with regard to this Agreement. 14. AMENDMENTS & ASSIGNMENTS: This Agreement, all Exhibits attached hereto, and required insurance certificates constitute the entire Agreement between both parties; no modifications shall be made to this Agreement unless in writing, agreed to by both parties, and attached hereto as an addendum to this Agreement. The Contractor shall not transfer or assign the provision of services called for in this Agreement without prior written consent of the Village. 15. PUBLIC RECORDS: In accordance with Section 119.0701, Florida Statutes, the Contractor must keep and maintain this Agreement and any other records associated therewith and Page 5 of 8 Page 403 of 433 Agenda Item #23. that are associated with the performance of the work described in the Scope of Services. Upon request from the Village's custodian of public records, the Contractor must provide the Village with copies of requested records, or allow such records to be inspected or copied, within a reasonable time in accordance with access and cost requirements of Chapter 119, Florida Statutes. A Contractor who fails to provide the public records to the Village, or fails to make them available for inspection or copying, within a reasonable time may be subject to attorneys fees and costs pursuant to Section 119.0701, Florida Statutes, and other penalties under Section 119.10, Florida Statutes. Further, the Contractor shall ensure that any exempt or confidential records associated with this Agreement or associated with the performance of the work described in Scope of Services are not disclosed except as authorized by law for the duration of the Agreement term, and following completion of the Agreement if the Contractor does not transfer the records to the Village. Finally, upon completion of the Agreement, the Contractor shall transfer, at no cost to the Village, all public records in possession of the Contractor, or keep and maintain public records required by the Village. If the Contractor transfers all public records to the Village upon completion of the Agreement, the Contractor shall destroy any duplicate public records that are exempt or confidential and exempt from public records disclosure requirements. If the Contractor keeps and maintains public records upon completion of the Agreement, the Contractor shall meet all applicable requirements for retaining public records. Records that are stored electronically must be provided to the Village, upon request from the Village's custodian of public records, in a format that is compatible with the Village's information technology systems. IF THE CONTRACTOR HAS QUESTIONS REGARDING THE APPLICATION OF CHAPTER 119, FLORIDA STATUTES, TO THE CONTRACTOR'S DUTY TO PROVIDE PUBLIC RECORDS RELATING TO THIS AGREEMENT, PLEASE CONTACT THE VILLAGE CLERK, RECORDS CUSTODIAN FOR THE VILLAGE, AT (561) 768-06859 OR AT lmcwilliams(&tequesta., OR AT 345 TEQUESTA DRIVE, TEQUESTA, FLORIDA 33469, 16. HEADINGS: The headings contained in this Agreement are provided for convenience only and shall not be considered in construing, interpreting or enforcing this Agreement. Page 6 of 8 Page 404 of 433 Agenda Item #23. 17. SEVERABILITY: The invalidity or unenforceability of any provision of this Agreement shall not affect the validity or enforceability or any other provision of this Agreement and this Agreement shall be construed and enforced in all respects as if the invalid or unenforceable provision is not contained herein. 18. WAIVER: No waiver by the Village of any provision of this Agreement shall be deemed to be a waiver of any other provisions hereof or of any subsequent breach by the Contractor of the same, or any other provision or the enforcement hereof. The Village's consent to or approval of any act requiring the Village's consent or approval of any act by the Contractor shall not be deemed to render unnecessary the obtaining of the Village's consent to or approval of any subsequent consent or approval of, whether or not similar to the act so consented or approved. 19. ENTIRE AGREEMENT: This eight (8) page Agreement, including any Exhibits, constitutes the entire agreement between the parties; no modification shall be made to this Agreement unless such modification is in writing, agreed to by both parties and attached hereto as an addendum to this Agreement. [REMAINDER OF THIS PAGE LEFT INTENTIONALLY BLANK] Page 7 of 8 Page 405 of 433 Agenda Item #23. IN WITNESS WHEREOF, the parties hereto have executed this Agreement on the date and year first above written. WITNESSES: ATTEST: Lori McWilliams, MMC Village Clerk FLORIDA DESIGN DRILLING CORPORATION By: Jeffrey Hoist, Senior Vice President (Corporate Seal) VILLAGE OF TEQUESTA By: Frank D'Ambra III, Mayor (Seal) Page 8 of 8 Page 406 of 433 Agenda Item #23. EXHIBIT A Page 407 of 433 Agenda Item #23. EXHIBIT B Page 408 of 433 Agenda Item #23. EXHIBIT C Page 409 of 433 Agenda Item #23. The following documenti*s presented in a non= ADA compliant format. Please contact the Village Clerk's office if you would like to receive an ADA compliant version of this document. Page 410 of 433 Agenda Item #23. PROJECT WORK AUTHORIZATION NO. 1 WITH FLORIDA DESIGN DRILLING CORPORATION FOR FLORIDAN WELL REHABILITATION PROGRAM THIS PROJECT WORK AUTHORIZATION NO. 1 is entered into and effective this day of by and between the VILLAGE OF TEQUESTA, a Florida municipal corporation with offices located at 345 Tequesta Drive, Tequesta, Florida 33469-0273, organized and existing in accordance with the laws of the State of Florida, hereinafter the "Village"; and FLORIDA DESIGN DRILLING CORPORATION, a Florida corporation with offices located at 7733 Hooper Road, West Palm Beach, Florida 33411, hereinafter the "Contractor" and collectively with the Village, the "Parties". 1.0 Authorization This Project Work Authorization is issued pursuant to the Agreement for Floridan Well Rehabilitation Program the Village and the Contractor, dated November 15, 2021, hereinafter the "Agreement". If there are any conflicts between the terms and conditions of this Project Work Authorization and the Agreement, the terms and conditions of the Agreement shall prevail. 2.0 Project Description: The Utilities Department has identified a need to complete rehabilitation services of three Floridan Aquifer Wells. 3.0 Scope of Services Under this Project Work Authorization, the Contractor will provide the well rehabilitation services to the Village as detailed in the Drawings and Scope of Work prepared by Mock Roos & Associates incorporated herein as Exhibit "A". 4.0 Schedule The services to be provided under this Project Work Authorization shall be Substantially Complete within one hundred and twenty (120) calendar days and Finally Complete within one hundred and fifty (150) calendar days from the Village's issuance of a Notice to Proceed. 5.0 Liquidated Damaues Contractor shall pay the Village $50 for each day that expires after the time (as duly adjusted pursuant to the Agreement) specified in the Schedule above for Substantial Completion or Final Completion until the Work is substantially complete or finally complete respectively. 1 of 2 Page 411 of 433 Agenda Item #23. 6.0 Compensation In consideration for the above Scope of Services and within the Agreement, pricing shall be pursuant to the Agreement. In consideration for the above Scope of Services and pursuant to Exhibit "B", the Village shall pay the Contractor a total amount not to exceed four hundred sixteen thousand, nine hundred seventy-nine dollars and three cents ($416,979.03) inclusive of a fifty thousand dollars and zero cents ($50,000.00) contingency allowance. IN WITNESS WHEREOF, the parties hereto have executed this Agreement on the date and year first above written. WITNESSES: FLORIDA DESIGN DRILLING CORP. ATTEST: Lori McWilliams, MMC Village Clerk By: Michael Black, Senior Vice President (Corporate Seal) VILLAGE OF TEQUESTA By: Frank D'Ambra, Mayor (Seal) 2 of 2 Page 412 of 433 Agenda Item #23. EXHIBIT A Page 413 of 433 Agenda Item #23. Background The Village of Tequesta has a water use permit (No. 50-00046-W) from the South Florida Water Management District (SFWMD) that allows the withdrawal of 401 million gallons (MG) per year from the surficial aquifer and 11251 MG from the brackish Upper Floridan aquifer. The Village currently operates three production wells (111, R2, and 113) tapping the Upper Floridan aquifer. A fourth well (114) has not been significantly operated more than the minimum required for testing, reportedly because of suspended solids production. Only having three wells in production means that all three wells need to operate most of the time to pump the annual allocation that makes up 76 percent of the Village's water supply. The Village has coordinated with Florida Drilling to provide a proposal for the rehabilitation of production wells R1, R2, and R4 piggybacking on the Town of Jupiter's contract for well rehabilitation. The following scope of work is to be complete as part of the rehabilitation for Well Nos. R2 and R3 and also for Well No. R4. Well R2 and Well R3 Rehabilitation — Including Acidization and development The rehabilitation of Wells R2 and R3 will include the following: removal and reinstallation of the well head, preliminary well video logging, well acidization, post acidization well development, step-drawdown testing, final well video logging, and well facility disinfection and bacteriological clearance, site restoration, and temporary pipe for by-pass connection. Below is a brief summary of the main items requested. Preliminary Well Video Logging Preliminary static and dynamic well video logging will provide an opportunity to inspect the well before beginning rehabilitation activities. It will provide an indication of the casing condition, material, depth and be used to determine whether there have been any visible changes to the well such as a collapsed borehole, fouling, or infilling. Acidization Following the well video, a well acidization procedure will be performed using 32% (20' Baume) hydrochloric acid (HCI) in an attempt to restore well capacity. HCI increases the permeability of limestone in the immediate vicinity of the borehole by dissolving precipitated calcium scale and limestone that impedes water flow from the aquifer into the well borehole thus increasing the capacity of the well. For the Village's Wells R2 and R3, `low strength, high volume' acidization method in which 32% HCI is diluted with potable water to make a weaker acid mixture (ie: 1- 3% HCI) which is then injected into the well over an extended period of time. It is estimate that 10,000 gallons of 32% HCI will be needed for each of the two UFA wells. Advantages of this method include a longer acid contact time and less violent reaction resulting in less chance of complications during the procedure. Depending on the results of the first acidization procedure, a follow-up acidization treatment may be recommended and will only be conducted with the approval of the Village. The double procedure is be budgeted (20,000 gallons/well). Following acidization, the spent acid will be removed from the well. Water with a pH below 6.5 will be contained and treated using a sodium bicarbonate solution to neutralize residual acid. The neutralized water will be discharged to settlement tanks and then the stormwater system. Purging of the spent acid will be considered complete when the discharge water from the well is clear with a pH of 6.5 or higher. It's estimated that as much as 3 to 4 million gallons (MG) of water may be generated during this phase of the rehabilitation effort. The capacity Page 414 of 433 Agenda Item #23. improvement of the well will be evaluated and, based on the results, the decision to proceed with a second treatment will be made at that time. Post Acidization Well Development Following acid treatment and spent acid discharge, a test pump capable of variable discharge rates will be installed in the well and pump development will be performed to remove formation solids generated from acidization and to maximize production. Pump development will continue at each well to the satisfaction of CCI. Ideally, development continues until the sand concentration is less than 1.0 part per million (ppm) and SDI's are less than 3.0 at the design flow rate of each well. It's estimated that as much as 6 to 9 MG of water may be generated during this phase of the rehabilitation effort. Step-Drawdown Testing Following pump development, a three step, step-drawdown test will be conducted at rates determined by CCI, but anticipated to be between 800 gpm and 1,500 gpm. Each step will continue until the drawdown in the well stabilizes or for a maximum of approximately two hours per step. A manometer tube and pressure transducer/data logger setup will be used to measure the static water level and pumping water levels and during pumping when the water level is above the top of the wellhead. Water level measurements below the wellhead will be performed using an electric water level tape and the data logger/transducer setup. Static and pumping water level data will be used, along with the pumping rates, to calculate a specific capacity value for each well. The specific capacity is the ratio of the pumping rate to the drawdown at a given time and is used to determine the productivity of the well. The new specific capacity data will be compared to the data collected during the wellfield evaluation to determine the percent improvement. Final Well Video Logging Upon completion of step-drawdown testing, final static and dynamic video logs will be performed to document post acidization well conditions. Wellhead Reinstallation and Well Disinfection After the completion of testing, the permanent wellhead and discharge apparatus, well transducer, and wellhead components will be reinstalled. Well disinfection will be performed and samples collected to confirm the disinfection was successful and that the well is ready for service. Bacteriological sampling can be performed at the Village's request. Temporary Discharge Pipe Well R2 development water will be settled out in tanks onsite and then pumped east to the recently constructed connection to the FDOT storm drainage system. Well R3 development water will be settled out in tanks onsite and then pumped west to the recently constructed connection to the Villages storm water drainage system. Well R4 Rehabilitation — Including Development The rehabilitation of Well R4 includes preliminary static and dynamic video logging, reverse air development (if necessary), high rate development, step-drawdown testing, final well video logging, and well facility disinfection and bacteriological clearance. Construction details will be verified during well video logging. If the preliminary well video logging indicates that the sand is originating from behind the casing then an alternative rehabilitative approach will be suggested. Page 415 of 433 Agenda Item #23. Preliminary Well Video Logging Preliminary static and dynamic well video logging will provide an opportunity to inspect the well before beginning rehabilitation activities. The static log will be used to view the casing condition, material, depth, and to determine whether there have been any visible changes to the well such as a collapsed borehole, fouling, or infilling. The dynamic well video logging will be used to determine the origin of the sand. There are three possibilities for the origin of the sand including from behind the casing, within the open hole section of the well, and/or from leftover debris that wasn't cleaned out of the well during construction. If the sand is originating in a location other than the bottom of the well, alternatives such as installing a well liner to deepen the casing, squeeze grouting, or backfilling the open hole may need to be considered. Well Development If the well is found to be of sound construction and there is significant infilling of sand at the bottom of the open hole portion of the well, then the water well contractor will use a crane and drill pipe to reverse air develop the sand out of the well. The reverse air development is not budgeted and is considered an alternative rehabilitation approach. If the well is found to be of sound construction and the source of the sand is from the formation within the open hole, then the water well contractor will install a pump capable of variable discharge rates, but with a rate of at least 2,000 gpm and preferably 3,000 gpm. Pump development will be performed to remove the sand from within the open hole section of the well. Pump development will continue to the satisfaction of CCI. Ideally, development continues until the sand concentration is less than 1.0 part per million (ppm) and SDI's are less than 3.0 at the design flow rate (1,100 gpm) of the well. It's estimated that as much as 6.7 MG to 11.5 MG of water may be generated during the rehabilitation effort (8 hours/day at approximately 2,000 to 3,000 gpm over 7 to 8 days). Settling tanks will be used prior to discharge to the stormwater system. Step-Drawdown Testing Following pump development, a three step, step-drawdown test will be conducted at rates determined by CCI, but anticipated to be between 800 gpm and 1,500 gpm. Each step will continue until the drawdown in the well stabilizes or for a maximum of approximately two hours per step. Water level measurements will be recorded. Static and pumping water level data will be used, along with the pumping rates, to calculate a specific capacity value for the well, which is the ratio of the pumping rate to the drawdown at a given time, and is used to determine the productivity of the well. Other measurements and observations will include SDIs, sand production, and water quality parameters including temperature, pH, specific conductance, chloride, and total dissolved solids. Final Well Video Logging Upon completion of step-drawdown testing, final static and dynamic video logs will be performed to document post rehabilitation well conditions. Wellhead Reinstallation and Well Disinfection After the completion of testing, the permanent wellhead and discharge apparatus, well transducer, and wellhead components will be reinstalled. Well disinfection will be performed, and samples collected to confirm the disinfection was successful and that the well is ready for service. Bacteriological sampling will be performed. Page 416 of 433 Agenda Item #23. Temporary Discharge Pipe Well R4 development water will be settled out in tanks onsite and then pumped through the existing raw watermain to Well No. R2 where it will be further pumped west to the recently constructed connection to the Villages storm water drainage system. 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