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HomeMy WebLinkAbout2011-221 ATTACHMENT 2 Board of County Commissioners 180127th Street Vero Beach, Florida 32960 a e Telephone : (772) 5674000 FAX : (772)-778-9391 Professional Services for FORMER GIFFORD ROAD LANDFILL AMENDMENT NO . 2 to WORK ORDER NO . 29 FOR Continuing Contract Agreement for Professional Services WITH Geosyntec Consultants , Inc . This Amendment No . 2 to Work Order No . 29 is entered into pursuant to the Continuing Contract Agreement for Professional Services entered into August 10 , 2004 and amended July 241 2007 (as so amended , the "Agreement" ) , by and between Indian River County Board of County Commissioners ( " COUNTY " ) on the same terms as the existing Agreement , as extended , between the Indian River County Solid Waste Disposal District , a dependent special district of Indian River County , Florida , ( " DISTRICT") AND Geosyntec Consultants , Inc . , a Florida Corporation ( " CONSULTANT" ) . The COUNTY has selected the CONSULTANT to perform the professional services set forth on Attachment A , attached to this Amendment No . 2 to Work Order No . 29 and made part hereof by this reference . The professional services will be performed by the CONSULTANT for the fee schedule set forth in Attachment B , attached to this Amendment No . 2 to Work Order No . 29 and made a part hereof by this reference . The CONSULTANT will perform the professional services within the Schedule more particularly set forth in Attachment A , attached to this Amendment No . 2 to Work Order No . 29 and made a part hereof by this reference all in accordance with the terms and provisions set forth in the Agreement . Pursuant to paragraph 1 . 4 of the Agreement , nothing contained in any Work Order or Amendment to Work Order shall conflict with the terms of the Agreement and terms of the Agreement shall be deemed to be incorporated in each individual Work Order or Amendment to Work Order as if fully set forth herein . COMPENSATION . The COUNTY agrees to pay , and the CONSULTANT agrees to accept , a fee for services rendered according to the "Scope of Services" identified in Attachment A and Exhibit 1 . xR11055\work Order 29 -Amend No 2 Page 2 AMENDMENT NO, 2 TO WO #29 — Geosyntec Consultants , Inc . Former Gifford Road Landfill A Not4o- Exceed Amount of: $ 148 , 883 . 00 to be paid on a unit price basis for actual work performed in accordance with the schedule of services and fees set forth in Attachment A and Exhibit 1 . IN WITNESS HEREOF the parties hereto have executed these presents This 18th day of NQmwe � 2011 . Gadd Grp/ OWNER GEOSYNTEC CONSULTANTS, INC. BOARD OF COUNTY COMMISSIONERS INDIAN RIVER COUNTY, FLORIDA �rrM• x,0.0* tune) (Signature) �'�;• ri, Chairman Thomas A. Peel, Ph. D., Vice President : i ppro� yBCC 10 - 18 - 11 Witnessed by: rton Clerk of Circui ourt NR , ' 1VER C Deputy Cler (Printed name) Approved as to Form and Legal Sufficiency: I n S. Pol ckwic , Sr., C unty Attomey t� oseph A. Baird, County Administra r xR ] ] 055\work Order 29 -Amend No 2 ATTACHMENT A PROFESSIONAL SERVICES (Jigill (hers I sc: ienlists I innovators GeosMtec 9515 rry Road, Suite A Pensacola, Florida 32534 P11 850.477 . 6547 consultants FAX 850.477 .6707 www. geosyntec. coin 30 September 2011 Mr. Himanshu H . Mehta, P . E . Managing Director Solid Waste Disposal District Indian River County 132574 th Avenue SW Vero Beach , Florida 32968 Subject: Proposal to Implement FDEP-Approved Remedial Action Plan Modification (RAPM) Addendum No. 2 Former South Gifford Road Landfill Vero Beach, Indian River County, Florida Dear Mr. Mehta : Geosyntec Consultants (Geosyntec) is pleased to submit this letter proposal to the Indian River County (IRC ) Solid Waste Disposal District ( SWDD) to provide professional services associated with implementation of Florida Department of Environmental Protection (FDEP)- approved RAPM Addendum No . 2 related to the recalcitrant chlorinated volatile organic compound (CVOC) plume at the Former South Gifford Road Landfill located in Vero Beach , Indian River County, Florida . As requested by IRC , this fee proposal includes budget to implement activities required by FDEP as outlined in the RAPM Addendum No . 2 dated 7 July 2011 and approved by FDEP in a letter dated 20 September 2011 . Geosyntec has prepared this proposal (professional services as Exhibit 1 ) as Amendment No . 2 to existing Work Order No . 29 for the Continuing Contract Agreement for Professional Services between IRC SWDD and Geosyntec, dated 10 August 2004 , and amended effective 24 July 2007 . The remainder of this letter provides an overview of the project background , a description of the proposed scope of work, a budget estimate , and a discussion of the schedule for accomplishment of the work described herein . PROJECT BACKGROUND Based upon the discovery of chlorinated volatile organic compounds (CVOCs) in groundwater samples collected at the site in 1999 , Geosyntec has implemented ongoing assessment, semi - annual plume monitoring, and remediation activities , as required by the FDEP . Geosyntec submitted a RAP for the site in July 2003 , which outlined a remedy which consisted of aggressive source area excavation ( including an area with dense non -aqueous phase liquid XR11055\XR11072 engineers { sl`. 1t.' ntists { innovators Mr. Himanshu H . Mehta, P . E . 30 September 2011 Page 2 [DNAPL] ) , pump and treat (P& T) , and natural attenuation monitoring for the downgradient dissolved plume . Based upon the results of post- source removal groundwater monitoring activities and an evaluation of natural attenuation processes , Geosyntec recommended in the June 2006 monitoring report that the existing P&T system , originally installed in 2001 as an interim measure , be permanently shut down . The P& T system was designed to provide hydraulic capture of the source area . With the source area removed via the excavation, the continued operation of the system was no longer justified . Additionally, the natural attenuation evaluation included in the June 2006 report demonstrated that anaerobic degradation processes are actively degrading the CVOC plume . In consideration of the ongoing natural attenuation processes occurring at the site, the enhancement of these biological processes via the injection of an electron donor was proposed , and agreed to in concept by the FDEP in correspondence dated 2 August 2006 . A RAP Modification (RAPM) was submitted to the FDEP outlining the injection of an electron donor, Emulsified Oil Substrate (EOS®) , in May 2007 . Geosyntec implemented the RAPM activities in April through June 2008 , as documented in the RAPM Implementation Report submitted to FDEP as Appendix A to the June 2008 Semi -Annual Groundwater Monitoring Report dated September 2008 . RAPM Addendum implementation , which included bioremediation implementation in the former source area, was completed in June and July 2009 and documented in the July 2009 RAPM Addendum Implementation Report . The ongoing semi-annual groundwater monitoring activities have documented the success of this approach . EOS ® is designed to provide a carbon source to the indigenous bacteria for up to approximately three years . In response to FDEP ' s request dated 3 May 2011 and supported by groundwater monitoring results, a RAPM Addendum No . 2 was prepared and presents an electron donor injection plan to address CVOC impacts in the former source area and to redose the two downgradient biobarriers , which are serving as a permeable reactive barrier (PRB ) to treat a portion of the dissolved plume . Electron donor in the form of emulsified oil will provide a hydrogen source for the indigenous microbes at the site, and the microbes will in turn transform the CVOCs to the harmless byproduct, ethene , via reductive dechlorination . PROPOSED SCOPE OF WORK The proposed scope of work includes the activities required to implement the FDEP-approved RAPM Addendum No . 2 , including the installation of the proposed former source area injection wells, the purchase of 78 drums (55 - gallon capacity) of EOS ® 598 , and the injection of 500 to 1 , 203 gallons of a 5 or 10 percent EOS® solution to each of the 90 existing biobarriers and proposed injection wells . The remainder of this letter provides details regarding the proposed scope of work and a budget estimate to accomplish the work described herein . XR11055\XR11072 er) g1P1cers I scientists iiill0 ators Mr. Himanshu H . Mehta, P . E . 30 September 2011 Page 3 For the purpose of budgeting , the scope of work has been divided into the following four main phases : • Phase 1 — Project Management ; • Phase 2 — Injection and Monitoring Well Installation ; 0 Phase 3 — Injection Activities ; and • Phase 4 — UIC and Performance Monitoring and Reporting . The remainder of this section presents a general description of the activities to be performed in each phase . Phase 1 — Project Management Under this task, Geosyntec will perform project planning and management responsibilities , such as correspondence with IRC SWDD and FDEP, invoice review, project coordination , and project administration . Phase 2 — Iniection and Monitoring Well Installations This task includes the activities associated with providing oversight to drilling subcontractors , as required , to install the proposed former source area injection wells to augment the existing well network and one additional monitoring well to assess CVOC concentrations upgradient of biobarrier transect 1 . A total of 12 injection well clusters (two wells in each cluster for 24 total wells) will be installed beneath the former source area and in the vicinity of monitoring well GR-MW3013 . The injection well clusters will be installed with a direct-push technology (DPT) drill rig and constructed similar to the existing former source area injection wells : 3/4- inch PVC with a stick- up completion approximately 2 ft above land surface . The 0 . 010 - inch slotted screens will be 5 ft in length and extend from approximately 25 to 30 ft BLS (even numbered wells) and 33 to 38 ft BLS (odd numbered wells) . One monitoring well , GR-MW3613, will be installed with a DPT drill rig approximately 20 feet west of biobarrier transect 1 and screened from 40 to 50 ft BLS . The monitoring well will be constructed of l inch diameter schedule 40 PVC , with pre-packed 20/30 sand surrounding the 0 . 010 - inch slotted screen . Two feet of 30/65 fine sand seal will be added above the filter pack and the remaining annular space will be grouted to land surface . The monitoring well will be completed with an expandable well cap and an 8 - inch diameter steel manhole, set in a 3400t by 346ot by 4 - inch thick concrete pad . XR11055\XR11072 C' [ Ayfi ) Cers I scientists itinovators Mr. Himanshu H . Mehta, P . E . 30 September 2011 Page 4 The wells will be developed until visually free of particulates , as observed by the on- site Geosyntec representative . It has been assumed that the well installation and development activities can be completed in five field days . Any soil investigation -derived waste (IDW), consisting of soil cuttings from well installation , will be placed in 55 - gallon drums, labeled , and placed at the Gifford Road Landfill for disposal by IRC SWDD . Any liquid IDW, including development water, will be transferred into the IP& T system and pumped into the IRC sanitary sewer system following treatment through the air stripper. Phase 3 — Iniection Activities EOS ® 598 has been selected as the optimal electron donor for this site . Based upon calculations presented in the RAPM Addendum No . 2 , EOS® 598 will be injected by Geosyntec personnel as a dilute solution directly into the injection wells and will remain active in the subsurface for a period of up to five years . The EOS® dosage will consist of the injection of twenty (20) 55 - gallon drums of EOS ® 598 solution at transect one, thirty- five (35 ) 55 - gallon drums of EOS® solution at transect three , and twenty-three (23 ) drums of EOS® solution in the former source area . The EOS® 598 solution will be diluted with site groundwater, with the injection of approximately 500 to 1 , 203 gallons of solution to each well . The electron donor solution will be delivered to each injection location via a trailer-mounted injection system which includes a mixing tank and centrifugal pump connected to a manifold that includes individual flow meters , pressure gages, and ball valves . During the performance of the injection work at each location, information regarding the injection start time , finish time , volume injected, and injection pressure will be recorded by Geosyntec personnel . It has been assumed that the injection activities can be completed in 18 field days . Phase 4 — Reporting Implementation of RAPM Addendum No . 2 will be summarized in the semi- annual groundwater monitoring report that follows completion of the implementation activities . UIC monitoring will be included with the semi- annual sampling events until criteria are met. Performance monitoring of CVOCs and TOC will continue to be included as part of the semi- annual sampling events . A limited budget has been included herein to incorporate a description of these activities and a summary of the results into the currently authorized semi- annual groundwater monitoring reports . UIC and Performance Monitoring Underground injection control (UIC ) monitoring is required after injecting remedial fluids into the aquifer according to Chapter 62- 528 of the Florida Administrative Code (F . A . C . ) . UIC monitoring XR11055\XRl 1072 engitice, rs ( ` t ictin st s ( irinovators Mr. Himanshu H . Mehta, P . E . 30 September 2011 Page 5 will be performed at a frequency of semi- annually ( in conjunction with current semi- annual groundwater sampling at the site) , for a minimum of one sampling event following the performance of injection activities, and laboratory analyzed for UIC parameters . UIC parameters include total recoverable petroleum hydrocarbons (TRPH), polysorbate 80 surfactant (by method SM5540-1)) , sodium , chloride and total dissolved solids ( TDS) . UIC parameter analysis will be performed on groundwater samples from three monitoring wells, including : ( i) GR-MW3013 in the former source area; (ii) GR-MW02D located adjacent to and down-gradient of biobarrier transect 1 ; and ( iii) GR- MW28D located adjacent to and down- gradient of biobarrier transect 3 . Additional sampling will not be conducted for the referenced parameters if, sample results from the semi-annual event following the injection activities meet UIC criteria . It is anticipated that semi- annual CVOC and total organic carbon (TOC ) sampling currently performed (and contracted) at the site is adequate for performance monitoring of the source area and biobarriers . This sampling will continue to include semi-annual sampling for TOC in one former source area monitoring well ( GR- MW3013 ), a monitoring well downgradient of biobarrier transect 1 (GR-MW021)), and a monitoring well downgradient of biobarrier transect 3 (GR-MW281)) . TOC concentrations will be evaluated as an indicator of the presence of electron donor. Field parameters (pH, dissolved oxygen, and oxidation-reduction potential) will continue to be recorded during semi- annual groundwater sampling activities and will be utilized to evaluate whether the aquifer continues to be conducive to reductive dechlorination . It has been assumed that the UIC and performance monitoring will be conducted within the currently authorized semi-annual groundwater monitoring budget and therefore no additional budget is included for these activities herein. However, the scope is discussed above to inform the County about the additional analytical costs that should be expected because the analytical costs are directly billed to IRC SWDD . SCHEDULE FDEP has requested that the County begin implementation of the required activities by 21 October 2011 . Geosyntec will initiate these activities within two weeks of receipt of notice to proceed from the County . The final field schedule will be based on subcontractor availability . We anticipate that the field activities will tentatively be conducted in November and/or December 2011 . A description of the well installation and dosing activities will be included in future semi -annual groundwater monitoring report( s) . BUDGET ESTIMATE A budget estimate for the scope of work outlined in Phases 1 through 4 of this proposal is summarized in the following table, and a detailed budget estimate is provided as Exhibit 1 . The budget estimate presented in this proposal is based on Geosyntec ' s understanding of the project XR11055\XR11072 f' nIlf11"we. rs `civrltists innovators Mr . Himanshu H . Mehta, P . E . 30 September 2011 Page 6 requirements, our experience gained from executing similar tasks for SWDD since 2002 at the site , and experience with groundwater remediation activities at similar facilities . Geosyntec will not exceed the budget estimate without prior approval and written authorization from IRC SWDD . Phase 1 — Project Management $4 , 613 Phase 2 — Injection and Monitoring Well Installation $259702 Phase 3 — Injection Activities $ 1149869 Phase 4 —Reporting $35699 TOTAL $ 1489883 CLOSURE Geosyntec appreciates this opportunity to offer our services . If this proposal is acceptable, please indicate your agreement by signing the attached work authorization , which references this proposal . Please return one signed work authorization to Ms . Johnson ' s attention . Please call either of the undersigned with questions you may have as you review this proposal . Sincerely, eJo on , P. on Senior (Hydrogeologist Jes "tng nbach, P . E . Principal Engineer Attachments XRl 1055ARL1072 f iigirlt' er ° scientists ifillovatorS EXHIBIT 1 BUDGET ESTIMATE r: rlgilu; crs sclemists innovators Table 1 BUDGET ESTIMATE SOUTH GIFFORD ROAD LANDFILL PHASE 1 : Project Management ITEM BASIS RATE QUANTITY ESTIMATED BUDGET A. Professional Services a. Principal hr $ 195 . 67 4 $783 b . Associate hr $ 185 .32 0 $ 0 c. Senior Project Geologist hr $ 163 .07 8 $ 1 ,305 d . Project Engineer hr $ 129 . 12 16 1 $2,066 e. Engineer hr $ 112 .49 0 $0 f. Senior Staff Geologist hr $ 100 . 16 0 $0 g. Staff Engineer hr $ 84 . 24 0 $0 Subtotal Professional Services $49153 B. Technical/Administrative Services a. Site Manager/Construction Manager hr $ 98 . 56 0 $ 0 b . Senior Engineering Technician hr $ 73 . 88 0 $ 0 c. Designer/GIS hr $ 119. 39 0 $0 d . Drafter/CADD Operator hr $72 .79 0 $0 e. Technical/Administrative Assistant hr $ 81 . 39 4 $326 f. Technical Word Processor hr $ 83 . 08 0 $ 0 g. Clerical hr $49 . 96 0 $0 Subtotal Technical/Administrative Services $326 Co Reimbursables ' a. Lodging day $89 0 $0 b . Per Diem day $51 0 $0 c. Communications Fee 3 % labor 0 . 03 45479 $ 134 d . CADD Computer System hr $ 15 0 $0 e . Vehicle Rental day $75 0 $0 f 8 . 5 "x11 " Photocopies each $0 . 12 0 $0 g. Second Day Letter each $6 0 $0 Subtotal Reimbursables $ 134 TOTAL ESTIMATED BUDGET PHASE1 $49613 XR11072 .xlsx Geosyntec Consultants Table 2 BUDGET ESTIMATE SOUTH GIFFORD ROAD LANDFILL PHASE 2: Iniection and Monitoring Well Installation Activities ITEM BASIS RATE QUANTITY ESTIMATED BUDGET A. Professional Services a. Principal hr $ 195 . 67 2 $391 b . Associate hr $ 185 .32 0 $0 c. Senior Project Geologist hr $ 163 .07 6 $978 d. Project Engineer hr $ 129 . 12 16 $2 ,066 e . Engineer hr $ 112 .49 0 $0 f Senior Staff Geologist hr $ 100 . 16 70 $77011 g. Staff Engineer hr $84 .24 0 $0 Subtotal Professional Services $ 10,447 B. TechniaUAdministrative Services a. Site Manager/Construction Manager hr $98 . 56 0 $0 b . Senior Engineering Technician hr $73 . 88 0 $0 c. Designer/GIS hr $ 119 . 39 0 $0 d. Drafter/CADD Operator hr $72 . 79 0 $0 e . Technical/Administrative Assistant hr $81 . 39 4 $326 f. Technical Word Processor hr $83 .08 0 $0 g. Clerical hr $49.96 0 $0 Subtotal Technical/Administrative Services $326 C. Subcontractor a. Driller Mod/demob/prep LS $321 . 00 1 $321 b . DPT Daily Rate day $ 1 ,444 . 50 5 $7 ,223 c . Per Diem day $214 .00 4 $856 d. Injection Well Installations each $ 159 . 16 24 $33820 e. Monitoring Well Installation each $342 .40 1 $342 f. Well Development hr $ 185 . 00 0 $0 g. Decon hr $214 .00 0 $0 h . Permits LS $ 107 .00 1 $ 107 i . Drums each $58 . 85 0 $0 j . GPS Unit/Level/Rod for Surveying day $63 .00 1 $63 Subtotal Subcontractor Services $129732 D Reimbursables rdD ing day $89 4 $356 iem day $ 51 4 $204 munications Fee 3 % labor 0 .03 $ 10,772 $323 D Computer System hr $ 15 4 $60 icle Rental day $75 5 $375 x11 " Photocopies each $0 . 12 100 $ 12 rnight Cooler each $95 0 $0 undwater Sampling Kit day $275 0 $0 l Installation Kit week $760 1 $760 ipment Shipping each $54 2 $ 108 Subtotal Reimbursables $29198 TOTAL ESTIMATED BUDGET . PHASE 2 $25,702 Notes: 1 . Lodging and per diem rates were taken from the GSA website for the Vero Beach area (www.gsa.gov). 2 . Well Installation Kit includes: water level indicator, PID/FID OVA, GPS unit, field geology kit, measuring wheel , multi-meter (pH, temperature, conductivity, turbidity, dissolved oxygen, and oxidation reduction potential), and miscellaneous supplies. Geosyntec Consultants XRI 1072 .xlsx Table 3 BUDGET ESTIMATE SOUTH GIFFORD ROAD LANDFILL PHASE 3 : Injection Activities ITEM BASIS RATE QUANTITY ESTIMATED BUDGET A. Professional Services a. Principal hr $ 195 . 67 4 $783 b . Associate hr $ 185 . 32 0 $0 c . Senior Project Geologist hr $ 163 . 07 12 $ 11957 d . Project Engineer hr $ 129 . 12 18 $21324 e . Engineer hr $ 112 . 49 0 $0 f. Senior Staff Geologist hr $ 100 . 16 0 $0 g . Staff Engineer hr $ 84 . 24 0 $0 Subtotal Professional Services $59064 B. Technical/Administrative Services : a. Site Manager/Construction Manager hr $98 . 56 200 $ 19, 712 b . Senior Engineering Technician hr $73 . 88 0 $0 c . Designer/GIS hr $ 119 . 39 0 $0 d. Drafter/CADD Operator hr $72 . 79 0 $0 e . Technical/Administrative Assistant hr $81 . 39 0 $0 f. Technical Word Processor hr $ 83 . 08 0 $0 g. Clerical hr $49 . 96 0 $0 h . Clerical hr $42 0 $0 Subtotal Technical/Administrative Services $ 199712 C. Reimbursables a. Lodging day $89 14 $ 13246 b . Per Diem day $51 14 $ 714 c. Communications Fee 3 % labor 0 . 03 $24,776 $743 d. CADD Computer System hr $ 15 0 $0 e . Vehicle Rental day $75 18 $ 1 ,350 f EOS Delivery quote $ 33192 . 88 1 $35193 g. EOS Purchase drum $ 1 ,006 . 66 78 $78 , 519 h. EOS Injection Trailer/Injection Manifold week $700 . 00 4 $2 , 800 g. Dedicated Miscellaneous Injection Supplies LS $250 1 $250 h. O&M Kit day $65 18 $ 15170 i . Water Level Measurement Kit day $ 53 . 75 0 $0 j . Equipment Shipping each $ 54 2 $ 108 Subtotal Reimbursables $909093 TOTAL ESTIMATED BUDGET I PHASE 3 5114,869 Notes : 1 . Lodging and per diem rates were taken from the GSA website for the Vero Beach area (www. gsa. gov) . 2 . O&M Kit includes various small iterms for minor work/repairs (valves, PVC fittings , gaskets, etc.) . XRI1072 .xlsx Geosyntec Consultants Table 4 BUDGET ESTIMATE SOUTH GIFFORD ROAD LANDFILL PHASE 4: Reporting ITEM BASIS RATE QUANTITY ESTIMATEDBUDGET A. Professional Services a. Principal hr $ 195 . 67 2 $ 391 b . Associate hr $ 185 . 32 0 $0 c . Senior Project Geologist hr $ 163 . 07 8 $ 1 ,305 d . Project Engineer hr $ 129 . 12 8 $ 19033 e . Engineer hr $ 112 . 49 0 $0 f. Senior Staff Geologist hr $ 100 . 16 0 $0 g. Staff Engineer hr $ 84 . 24 0 $ 0 Subtotal Professional Services $2,729 B. Technical/Administrative Services a. Site Manager/Construction Manager hr $98 . 56 0 $0 b . Senior Engineering Technician hr $73 . 88 0 $0 c . Designer/GIS hr $ 119 . 39 4 $478 d . Drafter/CADD Operator hr $72 . 79 0 $0 e . Technical/Administrative Assistant hr $ 81 . 39 2 $ 163 f. Technical Word Processor hr $ 83 .08 0 $0 g. Clerical hr $49 .96 2 $ 100 Subtotal Technical/Administrative Services $740 C. Reimbursables a. Lodging day $ 89 0 $0 b . Per Diem day $51 0 $0 c . Communications Fee 3 % labor 0 . 03 $39469 $ 104 d . CADD Computer System hr $ 15 2 $ 30 e . Vehicle Rental day $75 0 $0 f. 8 . 5 " x11 " Photocopies each $0 . 12 500 $ 60 g. CADD Photocopies each $ 3 1 12 $36 Subtotal Reimbursables $230 TOTAL ESTIMATED BUDGET a PHASE 4 $39699 XR11072 .x1sx Geosyntec Consultants