Category Archives: Operations & Maintenance
Silresim Superfund Site Lowell, Massachusetts Watermark was awarded a contract to monitor contaminated groundwater and to perform Operations & Maintenance (O&M) at the groundwater treatment plant (GWTP) at the Silresim Superfund Site. Watermark’s personnel have been involved at this challenging site since the GWTP was designed and constructed in 1994. The source area was approximately 4 acres in size and contaminated with non-aqueous phase liquids (NAPLs) consisting of many types of organic solvents. Watermark handles hazardous waste on a daily basis. On average, Watermark has shipped approximately 100 drums of hazardous waste per year. To date, Watermark has handled and…Environmental, Municipal/State, Operations & Maintenance on .