Modern Distributing (Missouri State Highway Patrol Crime Laboratory)

The department's Brownfields/ Voluntary Cleanup Program (BVCP) staff conducted a Phase II Environmental Site Assessment due to the recognized environmental conditions existing on properties next to the site and the northern portion of the site. The initial Phase II identified benzo(a)pyrene and elevated levels of lead in the soil and elevated levels of metals in the groundwater. Consultants conducted further delineation of contamination and a Tier I Risk Assessment. No lead levels were discovered above levels allowed for residential use. Representative concentrations of benzo(a)pyrene were below residential standards and dissolved concentrations of metals in groundwater did not exceed the lowest risk-based target levels.  

Two 10,000-gallon heating oil underground storage tanks were removed from the property. Initial sampling indicated a release of heating oil into the area immediately around the tank pit. Monitoring wells were installed. The contamination in the groundwater, mainly total petroleum hydrocarbons-diesel range organics (TPH-DRO), was delineated. Free product was initially evident in one monitoring well located immediately north of the building. Bailing the well began on a regular basis and by 2011 the product was gone. More bailing was conducted in late 2012 and early 2013, as dissolved phase concentrations in the well continued to be erratic. Final concentrations of TPH-DRO were below residential levels.

Funding Sources

The building cost approximately $8.14 million and received $5 million in grant funding from the U.S. Department of Health and Human Services.