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HomeMy WebLinkAbout2007-049 / � / ° 1 w � q Geosyn. tee ° 6770 South Washington Avenue, Suite 3 Titusville, Florida 32780 PH 321 .269.5880 consultants FAX 321 .269.5813 www.geosynt"ec.com.com 14 December 2006 Janet B. Dunlap, P . E . Indian River County Capital Projects 1840 25th Street Vero Beach, Florida 32960-3365 Subject: Limited Petroleum Assessment Cumberland Farms #0955 Nr0 8 2007 2614 Oslo Road I y FDEP Facility ID No . 318520246 li Vero Beach, FL 32940 CAPITAL PROJECT Dear Ms Dunlap : GeoSyntec Consultants (GeoSyntec) is pleased to submit this fee proposal to Indian River County (IRC) for professional services associated with the performance of a limited petroleum assessment at the referenced facility. The objective of the proposed scope of services is to : (i) screen soil and groundwater in the vicinity of the existing underground storage tank (UST) system located in the southeastern portion of the property for potential soil and/or groundwater impacts related to the storage and dispensing of petroleum products, and (ii) assess the northern portion of the site, which may be excavated for future use as a stormwater retention pond. It is understood IRC is considering acquisition of the property and the existing fuel storage and dispensing system will eventually require removal and closure in accordance with Florida Department of Environmental Protection (FDEP) requirements. This limited investigation is intended to provide soil and groundwater quality information to aid in planning and budgeting for future activities at the site. Additionally, since there are existing petroleum impacts in the former UST area in the southwestern portion of the site which are currently being addressed and funded through the State of Florida Petroleum Pre-approval Program (PAP), the discovery of potential petroleum impacts in the current UST system prior to acquisition of the site from Cumberland Farms may enable the remediation of any additional identified impacts to be funded through the PAP. XR06212/CCRO60075 IRC-Limited Petroleum Site Assessment engineers I scientists I innovators Janet B . Dunlap, P . E. 14 December 2006 Page 2 GeoSyntec is in receipt of the Limited Contamination Assessment Report (LCAR) which documents the closure of three, 8 ,000-gallon USTs in the southwest portion of the site. Groundwater samples collected during the performance of the UST closure activities identified petroleum constituents above Chapter 62-777, Florida Administrative Code (FAC) soil and groundwater cleanup target levels (CTLs) . The proposed site investigation activities included in this proposal are not related to the formerly reported release or subsequent site assessments . In addition to the LCAR, a Remedial Action Plan (RAP), submitted in May 2006 which proposes intermittent air sparging has been approved for the site. OVERVIEW GeoSyntec reviewed the LCAR prepared by Environmental Compliance Services (ECS ) and dated 30 July 2004. As described in the LCAR, groundwater samples collected from three monitoring wells (MW-3 , MW-4 and MW- 12) near the southeast comer of the former UST area exceeded regulatory Groundwater CTLs for several petroleum-related constituents . In addition, soils screened with an organic vapor analyzer-flame ionization detector (OVA-FID) during the installation of MW- 12 and nearby soil boring SB- 1 indicated elevated concentrations of organic vapors were present in soil at those locations . Subsequent to the site investigation, a RAP , recommending air sparging in conjunction with soil vapor extraction, was approved by Brevard County Natural Resources Management Department (BCNRMD) to address impacted soil and groundwater in this area. To date, the remedial actions have not been initiated. It is GeoSyntec' s understanding that the future use of the property will include road widening and the construction of a stormwater retention pond. To our knowledge, no recent soil or groundwater assessment has been conducted in the vicinity of the current USTs and dispensing system or the proposed stormwater pond location. GeoSyntec recommends advancing soil borings in the vicinity of the USTs, dispenser islands, and a limited number of locations north of the existing Cumberland Farms building. Based on OVA-FID field screening, a limited number of soil samples would be collected for laboratory analysis. In addition, groundwater sampling in targeted areas is also recommended. As described in our proposal, soil sample collection and groundwater sampling will be accomplished via direct push technology (DPT) to expedite the assessment, and to minimize site impacts and project costs. Upon receipt of data collected during XR06212/CCR060075 IRC-Limited Petroleum Site Assessmmt engineers I scientists I innovators Janet B . Dunlap, P.E. 14 December 2006 Page 3 during the assessment, GeoSyntec will prepare a letter report summarizing the field activities and laboratory analytical data. We have developed a task-based approach to group field activities and accomplish this work in an organized and cost-effective manner. The remainder of this letter provides a description of the proposed scope of work and a budget estimate to accomplish the work described herein (Attachment A). PROPOSED SCOPE OF WORK Task 1 . Field Work Preparation Prior to initiating field activities, GeoSyntec will prepare a Site-Specific Health & Safety Plan (SSH&SP), in accordance with the requirements of 29 CFR Part 1910. Additionally, GeoSyntec will procure the drilling subcontractor, collect and organize the field sampling equipment, and coordinate the field work with IRC personnel. Task 2 . Field Activities Based on GeoSyntec' s understanding of the work, we propose to complete the following tasks: • Using a DPT drilling subcontractor, GeoSyntec proposes to advance up to twelve, soil borings to an anticipated total depth of approximately 10 ft below land surface (BLS) . Soil samples will be screened using an OVA-FID . Based upon the soil screening results, up to six samples exhibiting the highest methane-corrected OVA-FID response will be submitted for laboratory analyses. If no OVA-FID meter responses are recorded above background levels, a minimum of three soil samples will be selected for laboratory analysis. The collected soil sample(s) will be laboratory analyzed by EPA Method 8021 (BTEX/MTBE), polynuclear aromatic hydrocarbons (PAHs) by EPA Method 8310 (three samples maximum), and total recoverable petroleum hydrocarbons (TRPH) by FL-PRO (three samples maximum). XR06212/CCR060075 IRC-Limited Petroleum Site Assessment engineers I scientists I innovators Janet B. Dunlap, P .E. 14 December 2006 Page 4 • Using DPT sampling equipment, groundwater samples will be collected at six locations . Groundwater sampling will be conducted in areas where potentially impacted soil has been identified. Groundwater samples will be collected from the vicinity of the existing UST area, the existing dispenser islands, north of the facility building and from the northeast corner of the property. Collected groundwater samples will be laboratory analyzed for BTEX/MTBE, PAHs (three samples maximum) and TRPH (three samples maximum). • All soil borings will be backfilled with native material and patched with concrete prior to leaving the site. Task 3. Site Assessment Letter Following completion of the field activities, GeoSyntec will prepare a brief letter report of findings . The letter report will include the following: • a brief summary of the field activities; • summary tables of the soil and groundwater sampling results ; • Geographical Information System (GIS) maps of the boring locations and results; and • a brief discussion of the results as related to future activities at the site. Two draft copies of the letter report will be provided to IRC for review . Upon receipt of IRC review comments, five copies of the final letter report, which will be signed and sealed by a licensed Professional Engineer or Geologist, will be provided to IRC . ASSUMPTIONS During the preparation of this proposal, GeoSyntec has made the following assumptions : • Access to sampling locations is not restricted. • All sampling can be performed in Level D personal protective equipment. XR06212/CCR060075 IRC-Limited Petroleum Site Assessment engineers I scientists I innovators Janet B. Dunlap, P.E. 14 December 2006 Page 5 • GeoSyntec will be able to work unimpeded between Monday and Friday from 7 am - 7 pm. To the greatest extent possible, GeoSyntec will minimize disruptions to site operations. While select soil boring/groundwater sampling locations will be completed in close proximity to fuel dispensers, it is anticipated that only intermittent closure of select dispensers will be required to complete the proposed sampling activities. It is anticipated that the facility will remain open to customers during the performance of the proposed investigation activities. • GeoSyntec and/or subcontractors will hand auger to a minimum depth of 5 ft BLS in an effort to located buried utilities prior to advancing borings. However, we assume that IRC will clear/mark utilities prior to GeoSyntec' s arrival onsite and will "clear" each drilling location prior to GeoSyntec performing subsurface activities. Unmarked utilities that are damaged will not be GeoSyntec' s responsibility. In the event that IRC is unable to provide utility locate personnel to assist with the identification of utilities, GeoSyntec can have a private utility locate performed for $ 1 ,200. • GeoSyntec has assumed that liquids generated during the well development and sampling will be discharged directly onto the ground adjacent to the monitoring well (for percolation or evaporation). • GeoSyntec has assumed that the DPT soil and groundwater investigation can be completed in one day. ESTIMATED COSTS GeoSyntec proposes to complete the proposed scope of work on a lump sum basis. The lump sum cost for the full scope of work and preparation of a letter report is $9, 123. Any tasks which IRC requests which are outside the defined scope of work will be completed in accordance with the hourly rate schedule negotiated with IRC. XR06212/CCR060075 IRC-Limited Petroleum Site Assessment engineers I scientists I innovators Janet B. Dunlap, P. E. 14 December 2006 Page 6 CLOSURE GeoSyntec appreciates the opportunity to submit to IRC the attached fee proposal (Attachment A) for services at the referenced site. If this proposal is acceptable to you, please indicate your agreement by signing the attached work authorization (Attachment B), which references this proposal. Please return one signed work authorization to Mr. Langenbach' s attention. Please call either one of the undersigned with any questions you may have as you review this letter or the fee proposal . Sincerely , James J. Langenbach, P. E. Senior Engineer ej Thomas A. Peel, Ph. D. Principal Attachments XR06212/CCR060075 IRC-Limited Petroieum Sih .4ssessmmt engineers I scientists I innovators ATTACHMENT A SUMMARY OF ESTIMATED COSTS XR06212/CCR060075 IRC Limited Petroleum Site Assessment Ce Synt= Co ultanb Table I Summary of Estimated Costs Indian River County Preliminary Site Assessment, 2614 Oslo Road PropwalNo. XR06212 Labor Direct External Task Task Description Hours Labor Expenses Expenses Total Cost 1 lField Pre radon/SSHASP 7 S581 . 14 S&OO 587 2 IField Activities 18 51 ,636. 13 $677.20 54,358. 11 $6,671 eport 0 T- 1 xit 212Ccx060075 Page 1 of 1 ATTACHMENT B WORK AUTHORIZATION XR06212/CCR060075 IRC Limited Petroleum Site Assessment WORK ORDER NUMBER FRO737E This Work Order Number FRO737E is entered into as of this 16 day of November 2006 pursuant to that certain Continuing Contract Agreement for Professional Services entered into as of 10 11 August 2004 ("Agreement"), by and between Indian River County gelid West@ Disposal Distriet, a rc • i � ��c.,.,l � •+� dopeaderA speeial disuiat of Indian River Go , Florida, whose address is c/o Indian River County 4 1840 25th Street, Vero Beach, Florida 32960 ("DISTRICT") and GeoSyntec Consultants ("CONSULTANT"). The DISTRICT has selected the Consultant to perform the professional services set forth on Attachment 1 , attached to this Work Order and made part hereof by this reference. The professional services will be performed by the Consultant for the fee schedule set forth in Attachment 2, attached to this Work Order and made a part hereof by this reference. The Consultant will perform the professional services within the timeframe more particularly set forth in Attachment 3, attached to this Work Order and made a part hereof by this reference all in accordance with the terns and provisions set forth in the Agreement. Pursuant to paragraph 1 .4 of the Agreement, nothing contained in any Work Order shall conflict with the terms of the Agreement and the terms of the Agreement shall be deemed to be incorporated in each individual Work Order as if fully set forth herein. IN WITNESS WHEREOF, the parties hereto have executed this Work Order as of the date first written above. CONSULTANT: INDIAN RIVER COUNTY Thomas A. Peel, Ph. D. oseph A. Bairdr Coounty Administrator Title: Vice President/Principal Indian giver Co. Approved Date • Legal 10/01 , Budget 119 gisk Maugement 0i 2b •o - General Services Gry^ p Dept. I � - Approved /as tKflo ang* sufficiency : ;:rivision Marim E-Ft*, Assistant County (ttomey XR06212/CCR060075 IRC Limited Petroleum Site Assessment