Rowantrees Pottery

During 2004, CES performed a Phase I and Phase II Environmental Site Assessment (ESA) and remediation at a pottery facility in Blue Hill, Maine. The Phase I assessment revealed that remedial efforts regarding lead concentrations in on-site soils had been previously conducted. After reviewing the remediation methodology and existing records, CES recommended that further investigation be conducted at the site as a part of Phase II ESA. The Phase II investigation revealed that soils containing lead concentrations that exceeded the Maine Remedial Action Guidelines (RAGs) and hazardous waste limits (i.e., TCLP) for lead still existed on-site. CES delineated the extent of the lead contamination utilizing X-Ray Florescence (XRF) technology with laboratory analysis confirmation. CES worked with the seller, prospective purchaser, and the MDEP as well as performed a feasibility study of the available options and determined that removal of the soil was the best option to meet the environmental and reuse objectives for the site. CES, in coordination with MDEP, the property owner and the perspective purchaser of the property, prepared a Remedial Action Work Plan which outlined methodology to segregate the contaminated soils into either a special waste or hazardous waste pile. CES proposed a method of material classification based on total lead concentrations determined by field screening utilizing the XRF in order to segregate the material into stockpiles of universal or hazardous waste. This method allowed CES to progress with the remediation without delays from waiting for laboratory TCLP analysis. Composite sampling of each pile was conducted to confirm TCLP concentrations prior to disposal. MDEP agreed to this approach which proved to be effective. The project was performed through the MDEP Voluntary Response Action Program (VRAP). Remediation of the site was completed in December 2004 and a No Action Assurance Letter and Certificate of Completion was issued by MDEP to the prospective purchaser.