ARCHIVED REPORTS_XR0004655 - Laserfiche WebLink

Home Browse Search

• part of due diligence for sale of the property, was an Environmental Rite Assessment and completed by Blymer Engineering, Inc.(BEI), dated September 15, 1989. Upon identification of a former underground tank location, BEI conducted two site investigations including soil borings and installation of three groundwater monitoring wells These investigations were a Contamination Triventizalhon, dated January 16, 1990 and a Phase,II_Envim mental,Audit, dated December, 1991. Elevated levels of BTEX and TPH as gasoline (TPHG) were found in both soil and groundwater Based on the results of the BEI investigations, SRK was retained to conduct additional site assessment. SRK conducted a soil and groundwater investigation, in which three additional groundwater monitoring wells were installed. Groundwater sample analyses from these additional wells confirmed that TPH was present in at least one well. As a result of these findings a quarterly groundwater monitoring program was initiated, with the most recent report completed in January 1994. Groundwater in the vicinity of the removed underground storage tank was reported to be flowing in a northeasterly direction during the 8190, 10/91, 2193 and 11193 sampling events. It was reportedly flowing in a westerly direction in 8191 and in a southwesterly direction during the 6193 events, respectively First groundwater was found at approximately 20 to 25 feet below grade. 3.0 WORK PLAN • 3.1 Utility Survey Prior to conducting any subsurface investigations, Underground Service Alert will be notified to locate any utilities entering the site This will serve to assess any potential drilling obstructions beneath the subject site Additionally, a record search of the pipeline which parallels the railroad track will be completed 3.2 Soil Borings Two soil borings will be drilled to total depths of approximately 35 feet below grade or 10 feet below first groundwater for soil sampling and installation of groundwater monitoring wells The locations of the groundwater monitoring wells will be off-site in up-gradient directions from the site. The proposed locations are shown on Figure 2. Soil borings will be advanced using a truck mounted drill ng with hollow stem continuous flight augers. The augers will be steam cleaned prior to drilling each boring. The lithology and other pertinent data will be recorded on a field boring log in accordance with the Unified Soil Classification System (USCS) Soil cuttings from the borings will be placed in DOT-approved 55-gallon drums for appropriate disposition. Disposal will be the responsibility of the facility operator. All soil borings which are 502372 3