News Release

T – 03 – 17
Barbara A. Lee, Director

March 9, 2017

Contact: Sanford (Sandy) Nax
(916) 327-6114

DTSC Seeks Public Comment on
Riverside Ag Park Neighborhood Evaluation Project

SACRAMENTO – The California Department of Toxic Substances Control (DTSC) is seeking public comment on a proposed plan for sampling soil at properties near the Riverside Agricultural Park (Ag Park) site. The purpose of the sampling will be to determine whether wind borne polychlorinated biphenyls (PCBs) may have migrated from Ag Park to the residential neighborhood. 

The plan calls for sampling soil at 30 properties, including 28 residential properties, nearby Rutland Park and another property southwest of the Ag Park site owned by the City of Riverside. Surface and subsurface soil samples will be collected from multiple locations and analyzed. Based on the results, DTSC will determine what additional actions may be needed. 

DTSC is inviting public comment on the plan during a 30-day public comment period that begins today and ends April 7, 2017. Written comments may be submitted to Project Manager Amit Pathak, Department of Toxic Substances Control, 5796 Corporate Avenue, Cypress, CA, 90630- 4732, or at 

DTSC also invites the public to review and comment on the plan at a meeting on March 23 at Arlanza Community Center, 7950 Philbin Ave., Riverside, CA, 92503. The meeting will be held from 6:30 to 8:30 p.m. and will be an interactive, open-house format with multiple information stations. Community members will have an opportunity to learn more about sampling objectives and sampling methods. 

The 62-acre Ag Park was part of Camp Anza, a former U.S. Army installation. Based on previous sampling, PCBs are known to be present within the property boundaries. Soil contamination resulted from the operation of a former sewage treatment plant the Army constructed in 1942. The city took ownership of the property in 1962. DTSC is supervising a cleanup of the Ag Park, and is conducting the investigation of nearby properties. 

More information can be found on our Site Mitigation and Restoration Program page.

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FOR GENERAL INQUIRIES: Contact the Department of Toxic Substances Control by phone at (800) 728-6942 or visit To report illegal handling, discharge, or disposal of hazardous waste, call the Waste Alert Hotline at (800) 698-6942.

The mission of DTSC is to protect California’s people and environment from harmful effects of toxic substances by restoring contaminated properties, enforcing hazardous waste law, reducing hazardous waste generation, and encouraging the manufacture of chemically safer products.