McKinzie Construction

Holton S-9 Sump Clean-out Project
McKinzie Construction provided hazardous waste remediation services at a former Atlas Missile storage and launch facility. Two school buildings occupied the site, and one of the buildings was built over part of the missile silo sub-structures. Previous sampling activities by KDHE and the USACE had indicated that sediment in two sumps was contaminated with trichloroethene (TCE) and other chlorinated solvents. The smaller sump was eight (8) feet deep, four feet in diameter. The larger sump was 60 feet below ground surface and four feet in diameter. Project activities consisted of pumping water and sludge from both sumps. Due to viscosity of the sludge, it was necessary for workers to perform confined space work, entering both sumps. All entry personnel were required to use level B protective clothing as result. Water and sludge removed from the sumps was accumulated in 55-gallon steel drums and two 1,500-gallon HDPE tanks located in the waste staging area. Approximately 2,150 gallons of contaminated water, twenty 55-gallon drums and three cubic yard bags of debris were shipped off-site for disposal. The Project Work Plan included a Field Sampling Plan, a Health and Safety Plan and a Quality Assurance Project Plan.