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WORK ORDER INITIAION FORM; BROWNFIELDS CLEANUP REVOLVING LOAN FUND ACTIVITIES; CAR PRO SITE; 1359 CLEVELAND ST �� Cardno TBE Shaping the W4ire CARDNO TBE WORK ORDER INITIATION FORM FOR THE CITY OF CLEARWATER Date: October 27, 2011 Project Number: TBD City Project Number: 1. PROJECT TITLE: Brownfields Cleanup Revolving Loan Fund Activities for the CAR Pro Site located at 1359 Cleveland Street— Clearwater, Florida. 2. SCOPE OF SERVICES: To complete remediation activities at the former Car Pro Site, as outlined in the Combined Document- Brownfields Site Assessment Report and Remedial Action Plan (Cardno TBE, May 2011), in accordance with regulations outlined in Chapter 62-785.700, F.A.C. Specifically, the following tasks are designed to support the active remediation of contaminated groundwater using enhanced bio-remediation of dissolved chlorinated solvents, via the addition of a hydrogen-release compound (HRC-3DMeT"') and halo-respiring bacteria (Bio- Dechlor INOCULUM PLUS [BDI PIusT""]). While the design and implementation of the remedial action plan is based on the cleanup target levels (CTLs) outlined in Chapter 62-777, F.A.C., the practicability of achieving the default groundwater CTLs through active site remediation cannot be fully determined at this time. The remedial activities outlined in this work order are to be completed in accordance with the Terms and Conditions of the current City of Clearwater Brownfields Grants and in accordance with Chapter 62-785 FAC (The Brownfields Cleanup Criteria Rule). Unfettered access to all impacted properties is an over- riding assumption of the current remediation plan. The specific tasks related to site remediation are as follows: RAP Task 1: QAPP, CRP, Davis-Bacon Requirements Preparation or updates to various support documents will be required based on the use of U.S. EPA grant funding for site restoration activities. Activities are tied specifically to the grant being utilized and, as a result, preparation of a Community Relations Plan (CRP), a Quality Assurance Project Plan (QAPP), specific Davis Bacon reports during each invoicing cycle, EPA quarterly reports, and a grant close-out report will be required to support this project. RAP Task 2: Horizontal Well Installation As outlined in the RAP document, one challenge to site remediation is the apparent presence of contaminants beneath a building on an adjacent property. In order to overcome this challenge, two (2) horizontally drilled injection wells will be installed beneath the former IHOP restaurant building, with the drilling activities occurring on the current (former) Car Pro property, and the pull back activities occurring on the former IHOP restaurant site. Access to the two (2) wells from both the east and west ends will be required to implement subsequent subsurface 1 injection activities. This task includes well development and storage and offsite disposal of drill cuttings and development water. It is assumed that water for the drilling process will be made available by the City of Clearwater. RAP Task 3: Utility Location / Evaluation Numerous injection borings will be required to implement the proposed remediation program for the site. In order to eliminate or minimize the hand digging required to clear injection locations, an underground utilities evaluation will be completed to identify buried utilities throughout the three private properties. Both ground penetrating radar and electro-magnetic designating equipment will be used to flag all utilities that are identified. RAP Task 4: HRC and BDI Injection Program Tank staging and materials storage areas will be set up on the former Car Pro site to store and mix reagent materials prior to injection. This system will include compressed nitrogen tanks for maintaining the BDI microbes in a reduced oxygen environment, in order to maintain their viability. Daily mixing and re-formulation of materials is anticipated throughout the injection process. The primary method of injection will be track-mounted Direct Push Technology (DPT), wherein no permanent wells or materials are left in place. The secondary injection method will be via drop tubes and packers within each end of the two horizontal injection wells. For the DPT injections, drive rods will be advanced to approximately one-foot into the underlying confining unit at the site (approximately 20-ft bls). A combination of HRC and BDI will then be injected at pre-determined quantities as the drive rod is retracted, from the base of the aquifer, to approximately 1-ft above the water table (at the time of injection). This injection program will continue at a 10-ft spacing within the established treatment zone. Approximately 100 injection points are anticipated based on the current definition of the solvent plume; however, minor modifications may be required based on supplemental assessment activities. For this proposal, a second (minor) polishing injection program of less than 10% of the initial program (on a fee basis), is included in order to address recalcitrant areas. RAP Task 5: Active and Post Active Remediation Monitoring and Reporting Post-active remediation monitoring (PARM) will be required at the site until the cleanup objectives are achieved. The rate of bio-degradation is somewhat concentration dependent and can slow as concentrations are reduced, or as less chlorinated daughter products (e.g., Dichloroethene or vinyl chloride) are generated. As a result, PARM may extend beyond one year. However, based on the current design and assumptions, this work order includes quarterly sampling of up to 15 monitor wells for a period of one year, and quarterly reports that will summarize the degradation processes noted. If CTLs are achieved within one year, a No Further Action proposal will be submitted to FDEP. If, however, concentrations remain higher than GCTLs, then an evaluation regarding the 2 extension of PARM, the implementation of additional remedial measures, or the pursuit of conditional site closure will be evaluated. While an evaluation of conditional closure requirements and approaches is included in this proposal, the actual preparation of engineering or institutional control documentation is not included. Cooperation with adjacent property owners will be required to achieve conditional site closure, and such negotiations are difficult to predict by Cardno TBE. RAP Task 6: Post-Injection Parking Lot Repairs While each of the 100± injection point locations located within adjacent property paved parking areas can be patched, the result will be a heavily damaged and uneven surface. As a result, Cardno TBE anticipates that the affected areas of the paved parking lots within both the Idle Spur and the former IHOP restaurant properties will need to be cut and replaced with new underlayment and asphalt. For this proposal, we are assuming approximately 8,600 square feet of parking area being repaired for a cost of approximately $2.50 per square foot. The City may be able to provide this service in a more cost effective manner using City resources; however, Cardno TBE is providing a cost estimate to support turnkey services for this project. 3. PROJECT GOALS: Reduce documented groundwater contamination emanating from the former Car Pro site to CTLs outlined in Chapter 62-777, F.A.C., to the satisfaction of the FDEP, while meeting the Terms and Conditions of the most recent EPA Brownfields Recovery Act Funds and Revolving Loan Fund requirements. 4. BUDGET: This price includes all labor and expenses anticipated to be incurred by Cardno TBE for the completion of this task, on a lump sum basis, based on the following costs: Task 1 - QAPP, CRP, and Davis Bacon Requirements Cardno TBE Fees and Expenses................................................................... 8 500 Subtotal......................................................................................................... $8,500 Task 2 - Horizontal Well lnstallation Subcontracted Services Driller.................................................................................................... $36,000 IDW Management & Disposal ................................................................ 3 600 Subtotal....................................................................................................... $39,600 Task 3- Utility Location/Evaluation Cardno TBE Fees and Expenses................................................................... 3 000 Subtotal......................................................................................................... $3,000 Task 4- HRC and BDI Injection Program (including minor polishing phase) Cardno TBE Fees and Expenses................................................................. $40,000 Subcontracted Services Driller.................................................................................. .................. $46,000 Reagent Purchase and Management................................................... 69 000 3 Subtotal..................................................................................................... $155,000 Task 5- Remediation Monitoring and Reporting (5 Events +Reports) Cardno TBE Fees and Expenses................................................................. $38,000 Subcontracted Services Laboratory............................................................................................ 24 000 Subtotal....................................................................................................... $62,000 Task 6— Parking Lot Repairs Cardno TBE Fees and Expenses................................................................... $6,000 Subcontracted Services Laboratory............................................................................................ 28 000 Subtotal....................:.................................................................................. $34,000 PROJECTTOTAL................................................................................... $302,100 Contingency Costs— Owners Allowance Because bench scale testing has not been conducted, and because the Remedial Action Plan is not yet approved by FDEP, a contingency to the HRC and BDI injection program is proposed in order to refine the plan and to implement any changes required by FDEP. Contingency on HRC/BDI Injection Program................................................ 23 340 Subtotal....................................................................................................... $23,340 PROJECTTOTAL ............................................................................................. $325,440 5. SCHEDULE: • To meet approaching grants deadlines, QAPP Modifications, and Horizontal Well Installation activities wi/l begin immediate/y upon execution of this Work Order Initiation Document. The estimated timeline for this assumes approval of QAPP modifications within 60 days of notice to proceed, with utility location services being completed during this time period. Horizontal well installation will be completed within 45 days of QAPP approval and commencement of injection activities will occur within 45 days of well installation. The injection program is anticipated to require approximately five (5) weeks to complete, resulting in the completion of active remediation approximately six months after the approval of this work order. Active remediation monitoring will occur 30-days after injection is completed and will occur quarterly thereafter for a period of one year. Based on this schedule, the remediation and initial PARM program will be completed approximately 1.5 years after project initiation. 4 6. STAFF ASSIGNMENT (Consultant): Joe Marsh (727) 431-1589, Miles Ballogg (727) 431-1555, Terry Griffin (727) 431-1679. Dana Kress (727) 639-5572. 7. CORRESPONDENCE/REPORTING PROCEDURES: Coordinator's project correspondence shall be directed to Joe Marsh/Miles Ballogg/Terry Griffin. All City project correspondence shall be directed to Diane Hufford and Ed Chesney, with copies to others as may be appropriate. 8. INVOICING/FUNDING PROCEDURES: Invoices shall be submitted monthly to the City of Clearwater, Attn: Diane Hufford, Brownfields Coordinator, Economic Development & Housing Department, P. O. Box 4748, Clearwater, Florida 33758- 4748, for work perFormed. Invoices will be prepared on a lump-sum basis (milestone driven). City Invoicing Code: 9. ITEM 9 INTENTIONALLY LEFT BLANK 10. SPECIAL CONSIDERATIONS: N/A PREPARED BY: (� /o.Z 7- /� Steven P. Howarth, PE Date Vice President Cardno TBE � /� 27-f� Miles Ballogg Date Director Cardno TBE 5 Countersigned: CITY OF CLEARWATER, FLORIDA —% � � '• ��:.� � ,�,_.�,�_ / `..,� By: -�. Frank V. Hibbard liam B. Horne II Mayor City Manager Approved as t form: Attest: ���„oFt,yFc/ � ��,�I�, �� a� Pame a K. kin Rosemarie Call � � City Attorney City Clerk .g� �� ����� �� 6