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Re-'UmolLse1() 6 rcLLJLI C�g for E"x�'rpvs«; is Rpr 9 " ¢1-onn1a,u1al '%S'S sNn1 n1, kJ11derracrund Swag D ad A Removal m(I R TgeL atia n <br />Services. Fr atia a° StcvMarathon Service Station q rrc;ituw� in SaraMlh Rend. lndianrL'ra ,L�,aL_ L'2 t 07i P 5_'q, Page 7 <br />collected as part of the UST removal activities, it is determined that PAH and/or lead impacts are <br />not likely to be present. <br />All soil and groundwater samples collected will be placed on ice and delivered to Pace in <br />Indianapolis, Indiana for laboratory analysis. Samples will be delivered to the laboratory under <br />Heartland chain -of -custody protocol. <br />Once the laboratory data has been received, Heartland will prepare a Phase II ESA report for the <br />site. The report will include field observations from the site sampling activities, a site plan <br />illustrating soil boring/sample locations, laboratory analytical results, comparison of the project <br />data to the IDEM RCG Default Screening Levels, conclusions and recommendations. The report <br />will evaluate existing site conditions and determine whether additional site activities will be <br />necessary to further characterize or remediate any encountered site impacts. <br />2.4 Ground Water Monitoring <br />Based on a review of the RFP, Heartland is providing the IBP with costs to provide long-term <br />ground water monitoring after the completion of initial subsurface investigative and remedial <br />activities. Please note long-term groundwater monitoring costs are being provided for budgetary <br />evaluation and will only be incorporated if determined necessary after the completion of <br />subsurface investigative activities, remedial alternative evaluation and after consultation with <br />IBP staff. <br />Heartland will provide oversight for the advancement of up to five (5) additional soil borings on <br />the property. Specific soil boring locations will be determined after consultation with IBP staff <br />and will be outlined in Heartland's SAP submitted for the site prior to initiation of these site <br />activities. Please note soil borings will not be advanced if determined, after consultation with <br />IDEM and IBP staff, that monitoring wells should be installed in locations within 5 feet of <br />historic soil borings. <br />Soil borings will be advanced using a direct push technology rig. During soil boring installation, <br />soils will be continuously sampled in 2-foot intervals to the base of each boring. Each soil <br />interval will be screened for TPVs using a pre -calibrated PID equipped with a 10.2 eV lamp. <br />Additionally, each soil interval will be inspected for indications of potential impacts, such as <br />staining, hydrocarbon or solvent odors, and elevated soil gas readings. Observations and soil <br />screening results will be recorded on Heartland boring logs. Prior to sampling, each of the soil <br />borings will be surveyed and located with GPS coordinates. <br />The five (5) soil borings will be completed with permanent 2-inch diameter groundwater monitoring <br />wells. The monitoring wells will be constructed of 2-inch Schedule 40 flush -threaded PVC with <br />10-foot of 0.010-in. factory slotted screen to account for seasonal fluctuations. The annular space <br />around the well screen will be surrounded with silica or washed quartz sand. The remaining <br />annular space will be filled with 2-feet of bentonite-cement grout to the ground surface. A <br />locking manhole cover will be installed over each well to prevent damage and to inhibit <br />tampering. Groundwater monitoring wells will be developed using IDEM approved well <br />