Location: Abbeville, Louisiana
Objective: Leaaf was contracted by the Louisiana Department of Environmental Quality (LDEQ) to perform various work orders at Ceramic Shop Tank Farm, a site formerly used by Broussard Chemical Company (BCC).
Groundwater Sampling: Leaaf sampled previously-established MW-1, MW-2, and MW-3. Results were reported to LDEQ in a Groundwater Monitoring Report. All three wells contained one or more Constituents of Concern (COCs) including several volatile organic compounds (VOCs), two semi-volatile organic compounds (SVOCs), arsenic, and volatile petroleum hydrocarbons (VPH) that exceeded Risk Evaluation/Corrective Action Program (RECAP) screening standards. Glycols were not detected, but the detection limit exceeded the applicable RECAP standards. Periodic groundwater monitoring continues as requested by LDEQ on an annual basis.
RECAP Site Investigation: A RECAP site investigation was performed by Leaaf during which eight boreholes were advanced and sampled (LB1 through LB7 were advanced to 36 feet [ft.] below ground service [bgs], and SS1 was advanced to three ft bgs). Three monitor wells and three temporary wells were installed and sampled for VOCs, SVOCs, pesticides/herbicides, polychlorinated biphenyls (PCBs), metals, VPH and extractable petroleum hydrocarbons (EPH), and glycols. Groundwater exceeded RECAP screening standards for VOCs, SVOCs, metals, and VPH; surface soils exceeded RECAP screening standards for VOCs, SVOCs, metals, PCBs, EPH, and VPH; and subsurface soils exceeded RECAP screening standards for VOCs and VPH. Concentrations of VOCs exceeded RECAP enclosed space standards in surface soils; therefore, indoor air sampling was recommended.
Indoor Air Quality (IAQ) Investigation: Leaaf conducted indoor air sampling for VOCs and total petroleum hydrocarbons (TPH) at the on-site warehouse and adjacent hardware store. Analytical results obtained from site investigation activities confirmed an impact to the indoor air. Indoor air analytical results indicated elevated concentrations of COCs in excess of the RECAP Standard. COCs detected in excess of the RECAP Standard included: acetone, benzene, toluene, and TPH (C6-C10).