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Siemens Carbon Regeneration Facility
(formerly US Filter Westates)
Fact Sheets
- Permitting Process at Westates (PDF) (2 pp, 48K)
- Proposed Air Emissions Test Plan (PDF) (2 pp, 15K)
- Risk Assessment at Westates (PDF) (2 pp, 41K)
- Specifics about Westates’ Proposed Risk Assessment (PDF) (2 pp, 35K)
Resources
Envirofacts National Environmental Database
Information about Siemens is available from Envirofacts, EPA’s national database for facilities subject to environmental regulation.
Enviromapper
Mapping capability for many kinds of sites,
including hazardous waste, superfund, etc.
Siemens Identification
RCRA ID Number: AZD982441263
City and County: Parker, La Paz County
Address: 2523 Mutahar Street
Parker, AZ 85344
Siemens Water Technologies (or “Siemens”) is a carbon regeneration facility located on the Colorado River Indian Reservation near Parker, Arizona. At this facility, Siemens uses thermal treatment to regenerate the carbon so that it may be used again.
Siemens has been treating spent carbon since 1992. Each year, Siemens receives about 4,000 tons of spent carbon from 30 - 35 states across the United States. About half of this is considered hazardous waste by EPA.
EPA is in the process of making a permit decision on Siemens. In the permit decision, EPA may deny the permit or may issue a permit to allow Siemens to continue processing hazardous waste.
NOTE: Siemens Water Technologies until recently (June 2006) was known as US Filter Westates. EPA is now using the new name, Siemens, in the text of this web page and in new documents that EPA develops. The prior name, Westates, remains in older documents attached to this web page.
Updates
On July 30, 2007, Siemens submitted its Human Health and Ecological Risk Assessment Report to EPA. The risk assessment uses the results from the March 2006 air emissions test which EPA observed. For access to the risk assessment report and the air emissions test report, in addition to EPA's fact sheets regarding the air emissions test and risk assessment, Siemens' approved test plan and other related documents, see risk assessment.
On March 27, 2007, EPA issued a public notice extending the public comment period for the identification of historic properties within the Area of Potential Effects around Siemens as part of the National Historic Preservation Act (NHPA) process. This public notice requests information on the historic properties within the Area of Potential Effects and whether there may be adverse effects to the historic properties from EPA’s permit decision at Siemens. The comment period ends April 12, 2007. For more information about the NHPA process and to see the public notice and documents from the administrative record, see National Historic Preservation Act.
On February 28, 2007, Siemens submitted a revised Part B Permit Application to EPA.
On January 31, 2007, EPA issued a public notice designating an Area of Potential Effects on historic properties around Siemens as part of the National Historic Preservation Act (NHPA) process. The comment period ended March 7, 2007. For more information about the NHPA process and to see the public notice and documents from the administrative record, see National Historic Preservation Act.
On June 30, 2006, EPA issued a Consent Agreement / Final Order (CA/FO) to Siemens. This order required Siemens to correct certain violations at the facility and to pay a fine of about $27,000. For more information about Siemens' compliance status and to see a copy of the CA/FO, what is Siemens' Compliance History.
In March 2006, Siemens conducted an air emissions test. The test was designed to estimate the types and amount of contaminants the facility releases to the air, and to test for contaminants in Siemens' waste waters. EPA was on site at Siemens to observe the test, and will closely review the test results. Siemens will use the results from the test in a risk assessment and EPA will make the test results and risk assessment available to the public. See the Air Emissions page for EPA's fact sheets regarding the air emissions test and risk assessment, approved test plan and other related documents.
Contact Information
If you have questions or concerns about Siemens or about EPA's permit process, please let us know by phone, email, or letter, or drop in at one of the public workshops. If you would like to receive fact sheets and public notice information from EPA or information in languages other than English, you may contact the EPA Community Involvement Coordinator:
Svetlana Zenkin, (zenkin.svetlana@epa.gov)
Community Involvement Coordinator
U.S. EPA (SFD-6-3)
75 Hawthorne Street
San Francisco, CA 94105
(415) 972-3085Or you may leave a message at EPA's toll free number 1-800-231-3075, and your call will be returned.