Former Facility Name
Holcim (US) Inc./ Energis LLC
Holcim (US) Inc./ Safety Kleen Systems Inc.
Holnam/ Safety-Kleen
Safety-Kleen - Clarksville
Last Updated
Facility Physical Address

14744 N. Highway 79
Clarksville, MO 63336-2044
United States

MoDNR Contact Name
Nathan Kraus, PE
MoDNR Contact Phone
MoDNR Contact toll free number:
MoDNR Contact Email
EPA Contact Name
Mary Reilly Grisolano
EPA Contact Phone
EPA Contact Email
Facility Contact(s)
Holcim (US) Inc.
Facility Contact Name
Dennis Fox
Facility Contact Phone Number

Permanent Hard Copy Location(s)

Location of hard copies of regulatory mechanism(s) and any modifications, reports and other supporting documents.

Missouri Department of Natural Resources, Elm Street Conference Center, Jefferson City, MO 65102 (Submit a Sunshine Law Request to review or obtain copies of the department's files.)

U.S. Environmental Protection Agency, Information Resource Center, 11201 Renner Blvd., Lenexa, Kansas (Call 913-551-7241 to schedule an appointment)

Public Notices

Information Center Name
Bowling Green Public Library

201 W. Locust
Bowling Green, MO 63334
United States


Background/ History

The Holcim (US) Inc./Geocycle LLC site is located at 14744 Highway 79 North, two miles north of Clarksville. Holcim operated a wet process cement kiln, which produced clinker, the main ingredient in Portland cement. Holcim used mainly coke and coal to heat the kiln system. In 1986, Holcim began using a variety of liquid and solid hazardous waste-derived fuels, such as spent industrial chemical and petroleum-related materials, to supplement its fuel needs. The hazardous waste came from off-site hazardous waste generators or third party hazardous waste blenders or brokers. Geocycle operated the hazardous waste treatment and storage facility. Geocycle received the hazardous waste by both truck and railcar, “blended” the waste with other hazardous waste to meet fuel specifications, and stored the resulting wastes in tanks until they are used as liquid fuel. 

Holcim/Geocycle operated under two hazardous waste permits, one issued by the department and one issued by the Environmental Protection Agency (EPA). The department issued the Missouri Hazardous Waste Management Facility Part I Permit, effective May 2, 2000. EPA issued the Hazardous and Solid Waste Amendments Part II Permit, effective June 16, 2000. The permits allowed Holcim/Geocycle to operate two hazardous waste container storage areas (the tank truck storage facility and the railcar storage facility), eight hazardous waste storage/treatment tanks, seven hazardous waste miscellaneous treatment processes and the kiln while burning blended hazardous wastes as alternate fuel

Cleanup Summary

Closure activities since issuance of the permits have resulted in closure of all hazardous waste management units at the site. Holcim/Geocycle closed the hazardous waste management facility in 2009, which included the hazardous waste fuel facility, cement kiln and hazardous waste fuel feed system piping. The department accepted Holcim/Geocycle’s closure report and certification in October 2009. Closure activities for the remaining hazardous waste management units began in July 2012. The department accepted Holcim/Geocycle’s closure report and certification on July 5, 2013. Residual contamination left at some of the closed units was at levels requiring a deed notification but without restricting future use of the site. No post-closure activities are required.

The permits issued to Holcim/Geocycle also require them to investigate and clean up releases of hazardous waste and hazardous constituents to the environment at their facility resulting from present and past hazardous waste handling practices. Initial investigations identified a limited number of locations on site that involved potential releases of heavy metals, volatile organic compounds and semi-volatile organic compounds to soil, sediment, surface water and groundwater. Subsequent investigations and evaluations indicated that impacts to groundwater were highly unlikely. Residual contamination left after remediation efforts in two areas in 2012 and 2013, consists of polycyclic aromatic hydrocarbons and resulted in a determination to restrict future use of this area to industrial use only. Future corrective action activities include additional investigation efforts at the remaining areas of contamination. What, if any, cleanup activities necessary will be based on the investigation results.


Coming Soon!

Closure & Cleanup

Coming Soon!


Coming Soon!


Listed below are the currently effective regulatory mechanism(s) and any modifications, institutional controls and any supporting documents regarding this property that the department currently has available in electronic form. The department realizes some of the electronic files can be quite large, which may result in long download times for individuals with slow internet connections. If you have any problems accessing these documents, please contact the department’s Waste Management Program by telephone at 573-751-5401 or 800-361-4827, or by email at

You can review printed copies of all regulatory agreements, reports and other supporting documents at the department’s Elm Street Conference Center in Jefferson City, Missouri. To review or obtain copies of the department’s files, please submit a Sunshine Law Request.

Regulatory Agreement