The detailed site description can be found in POLREP #1.
From April 14-April 18, 2008, ERRS RM and Site Foreman mobilized trailers and several pieces of equipment to the site for prep work. Electrical power on site was supplied from a mobile generator. Electrical and water utilities were restored to the building on 4/18/08.
ERRS identified and constructed the Exclusion Zone(EZ) and Contamination Reduction Zone(CRZ) within the confines of the facility. Slip and fall hazards in the facility were located and marked with hi-visibility orange paint.
Indoor air monitoring was conducted by START during indoor site preparation. Main floor and basement levels were monitored with a Multi-RAE PID, Toxi-RAE HCN detector and a pDR aerosol particulate meter. Levels of HCN, VOCs’s, H2S and LEL were non-detect. O2 levels were 20.9%. Dust levels were below nuisance criteria. Site security was maintained every evening from 1730-0700 weekdays, 24 hours daily on weekends. Security will continue to be provide in this manner until the completion of this emergency removal action.
On April 21, 2008, site preparation continued. A mobile fume hood with outside venting, used for HazCat analysis, was assembled inside the facility. Indoor air monitoring continued, with no change noted from the previous week. Power was connected to the office trailers. ERRS crew of 4 were on site to unload equipment, including breathing air cylinders and personal protective equipment (PPE).
On April 22, 2008, one Area-RAE monitor with HCN sensor and one pDR aerosol monitor were setup in the building for work zone air monitoring. Perimeter air monitoring was accomplished with three Area-RAE monitors and two pDR aerosol monitors, surrounding the outside work zone. ERRS moved a total of 28 drums and containers from the basement and staged on the main floor.
On April 23, 2008, with air monitoring equipment deployed, ERRS worked in Level B to collect 80 samples for HazCat procedures. All levels for indoor and outdoor air monitoring were non-detect. Particulates were below nuisance levels.
On April 24, 2008, a Minnesota Licensed Asbestos Inspector collected 5 samples throughout the facility for asbestos analysis. Two wipe samples were taken from ceiling joists downstairs for RCRA metal analysis. ERRS finished sample collections from 50 additional containers. START used HazCat procedures to analyze 32 waste solutions for pH, flammability, oxidizers, sulfides, chlorine and cyanides. A Multi-RAE PID and Toxi-RAE HCN monitor were utilized at the HazCat station for protection.
On April 25, 2008, START completed HazCat testing of 32 more solids and liquids. ERRS segregated containers of known compatibilities. A Multi-RAE PID and Toxi-RAE HCN monitor were utilized at the HazCat station during characterization activities.
On April 26, 2008, START completed HazCat analysis of 70 solids and liquids. A Multi-RAE PID and Toxi-RAE HCN monitor were utilized at the HazCat station for protection.
•Evaluate suspected asbestos containing material (SACM) samples to determine if removal is necessary.
•Safely remove waste from building using overpack drums, cubic yard boxes and totes.
•Pump hazardous liquids from facility using pumps and a tanker truck.
•Maintain air monitoring during all indoor and outdoor activities.
•Complete HazCat for waste identification.
•Perform test bulking waste compatibility procedures and classify waste streams.
•Analyze waste samples for 8 parameters.
•Mobilize a tanker truck to transfer neutral liquids waste for disposal.
•Maintain site security during non-working hours.
•Ensure safe waste transfers using proper techniques, especially with residents close in proximity to site.
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