EPA ID# MOD056389828

DNR Contact:      Jiayi “Jay” Liu, 573-751-3553 or 800-361-4827
EPA Contact:       Mary Reilly Grisolano, PE, RG, 913-551-7657 or 800-223-0425
Facility Contact: Richard Rocha, 816-242-2793
Last Updated:      Jan. 5, 2011

  • Former Company Name: Bayer Corp., Miles Inc., Mobay Chemical Corp., Bayer A.G., Chemagro
    Type of Facility: Permitted Hazardous Waste Treatment, Storage and Disposal.
  • Wastes Handled: Pesticides and herbicides, as well as various F-, K- P- and U-listed hazardous wastes as specified in the Part A application.
  • Treatment and Disposal Methods: Incineration.
  • Location of hard copies of hazardous waste permit application, Part I and Part II Permits, modification requests, reports, etc. and supporting documents:

Current Activities

Permit Application for Renewal Complete: On Sept. 11, 2008, Bayer CropScience submitted a permit application to the department and U.S. Environmental Protection Agency Region 7, to renew their existing Missouri Hazardous Waste Management Facility Part I Permit and Hazardous and Solid Waste Amendments Part II Permit. The department invites the public to review and offer written comments on the permit renewal application while the department conducts a technical review of the permit application.

The public can review and copy the permit application and supporting documents at the Kansas City Public Library’s North-East Branch, 6000 Wilson Road, Kansas City, Missouri (during normal business hours) or the agency locations above. Comments on the permit application are more effective if they point out legal or technical issues. You may submit written comments online or send comments by mail to Jiayi Liu, Missouri Department of Natural Resources, Hazardous Waste Program, P.O. Box 176, Jefferson City, MO 65102-0176.

Facility Description

The Bayer CropScience site is located on approximately 236 acres at 8400 Hawthorne Road on the north side of Kansas City, Missouri. The plant opened in 1956, as an agricultural chemical manufacturing facility, known as Chemagro, producing a variety of insecticides, fungicides and herbicides. From 1959 to 1973, Filter Aid, ethyl phosphoro-triesters with toluene, methyl phosphoro-triesters with naphthol spirit and DEF water treatment residue (polyphosphates of tri-n-butyl thioester phosphates) were disposed in three areas at the facility where trenches were reportedly dug. After the final placement of these materials, the areas were closed with waste in place.

After a series of name changes, the facility became Bayer Corp., Agricultural Division in April 1995. In 2002, Bayer CropScience LP assumed ownership of the site. Bayer produces and packages insecticides, seed treatments, herbicides and fungicides for crop protection. A variety of hazardous wastes are produced as part of the facility operations. Bayer stores and incinerates the hazardous waste created during the on-site production processes and receives hazardous waste from other off-site Bayer production facilities. Bayer currently operates one hazardous waste incinerator, four hazardous waste storage tanks and two hazardous waste container storage areas.

Corrective Action Status

According to applicable state and federal hazardous waste laws and regulations, all hazardous waste treatment, storage and disposal facilities are required 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. Investigations concluded that there is some soil contamination and substantial contamination of groundwater. In 2011, Bayer filed, with the Jackson County Recorder of Deeds, a Restrictive Covenant in the chain-of-title for the affected property, which will notify in perpetuity, any potential purchaser of the environmental conditions of the property. The Restrictive Covenant restricts the property to non-residential land use, requires maintenance of the soil covering the three disposal areas, prohibits the disturbance of the soil beneath the contaminated areas, and prohibits the use of groundwater for drinking water.

Bayer is currently performing a Corrective Measures Study to identify and evaluate possible remedial alternatives for the soil and groundwater contamination. In September 2012, the department approved a groundwater monitoring plan which requires regular monitoring of the groundwater. In order to contain the contaminated groundwater and prevent migration off site, the water is extracted by pumping wells and treated on site. When the Corrective Measures Study is complete, the department and EPA will review the possible remedial measures and select the best remedy given site-specific considerations.

Regulatory Status

Bayer CropScience is operating and conducting corrective action activities under two hazardous waste permits, one issued by the department and one issued by EPA. The permits were first issued in April 1987. The department reissued the Missouri Hazardous Waste Management Facility Part I Permit, effective Dec. 9, 1998. EPA reissued the Hazardous and Solid Waste Amendments Part II Permit, effective Jan. 8, 1999. These permits allow Bayer to store, treat and incinerate hazardous waste. The regulated units under the current permits consist of two container storage areas, four storage tanks and one incinerator.

Bayer submitted a permit application on Sept. 11, 2008, for renewal of their existing hazardous waste permits. Bayer’s existing Part I Permit expired Dec. 9, 2008, and Part II Permit expired Jan. 8, 2009. State and federal regulations, 40 CFR 270.51, allow the existing hazardous waste permits to continue in effect until the department and EPA issue or deny new hazardous waste permits. The department determined the permit application was complete on May 15, 2009. The department is conducting a technical review of the permit application.