Project Type: Hazardous Materials, Environmental, Industrial Hygiene, and Demolition Management
Client: Footprint Power, LLC
Assignment: UST Removal / Spill Sumps & Pipe Tracing Activities, Hazardous Materials and Asbestos Survey, Specifications Development, and Abatement Monitoring, Perimeter Monitoring for Noise, Dust, Particulate, Asbestos, and Lead Tank Management and Monitoring
AEI Consultants performed demolition management, industrial hygiene, hazardous materials, and environmental consulting services for the Salem Harbor Power Plant demolition project in Salem, Massachusetts for Footprint Power. These services were conducted between 2013 and 2016 and included the following:
- Tank removal management
- Hazardous materials and asbestos survey
- Development of specifications for asbestos abatement and building demolition
- Contractor selection assistance including bid evaluation
- Abatement monitoring and air clearance sampling
- General industrial hygiene and demolition management services
- Site perimeter monitoring for dust, noise, asbestos, and lead
With an operating budget of $2.5 million, AEI services were conducted on a 65-acre site located along the Salem Harbor Waterfront with a 100,000+ square foot coal-fired power plant that housed four steam generating units constructed between 1951 and 1972. Discharge stacks reached 500-feet in height, and the main plant exceeded eight stories. The site also included associated marine transfer terminal infrastructure, aboveground storage tanks, coal storage facilities, other ancillary structures, utilities, and roadways.
Hazardous and Regulated Materials Survey: Prior to demolition activities, AEI conducted a large-scale survey of asbestos, hazardous materials, and other US EPA Regulated Materials (Universal Waste) at the site to identify and quantify asbestos, lead, PCBs, fluorescent light fixtures, mercury thermostats and light fixtures, lubricating oils, and other process materials. The survey included identification of known hazardous materials, bulk sampling of suspect asbestos and PCB-containing materials for analysis, X-Ray Fluorescence Analyzer (XRF) testing for lead, and an inventory of Universal Waste.
Abatement Specifications and Monitoring: With the data collected during the asbestos/hazardous materials survey, AEI prepared an abatement and demolition specification for removal of hazardous materials and Universal Waste. AEI also monitored abatement activities conducting visual inspections, worker observations, perimeter air monitoring, and clearance sampling. These services were performed during the removal of various hazardous materials that included miles of asbestos insulated pipe and numerous tons of other asbestos-containing materials including pipe/boiler insulation and a 900-foot elevated coal conveyor constructed with asbestos cement board. Specialty abatement monitoring was also conducted on the interior of one large smokestack that was 500-feet tall.
Demolition Management and Industrial Hygiene Services: During subsequent demolition activities at the plant, AEI conducted real-time monitoring for several site hazards. This was accomplished by establishing five environmental monitoring stations around the perimeter of the project site to monitor real-time noise, dust, particulate, asbestos, and lead on a daily basis. Results of the monitoring were provided to the client in regular progress reports. Assistance was also provided to plant management in response to community inquiries on decommissioning operations.
Tank Management and Monitoring: AEI also monitored the demolition and removal of 11 large tanks that originally held hundreds-of-thousands of gallons of oil and other liquids. This included monitoring the removal of any remaining product from the tanks, pressure washing of tank interiors, on-site demolition of the structures, and final removal of materials.
Interesting Project Element: As part of a contract requirement for this project, a majority of demolition metals were removed from the site by barge and shipped to Boston for recycling. Removal of these materials took place by water through the port terminal facility on-site, dramatically cutting back on ground transportation and related activities on and around the project. Asphalt, concrete, and brick were also re-used as fill material on-site as part of the Beneficial Use Determination (BUD) eliminating trucking and landfill. The recycling for this project was approximately 95% for all demolition materials.