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  1. Home
  2. EPA in Arizona
  3. Topics and Resources
  4. Desotec US LLC (Evoqua)

Desotec US LLC (Formerly Evoqua Water Technologies LLC): Related Documents

RCRA Permit Application, Draft Permit, Risk Assessment and Trial Burn Documents, and Fact Sheets for the Desotec US LLC (Formerly Evoqua Water Technologies LLC) carbon regeneration facility located on the Colorado River Indian Tribes (CRIT) reservation near Parker, Arizona.

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  • Permit Attachment Appendix XI: Risk Assessment Report Executive Summary (pdf) (79.03 KB, September 2018)
    This appendix contains the Executive Summary of the Human Health and Ecological Risk Assessment Report for Siemens Industry Inc. Parker Reactivation Facility, Parker, AZ. For the remainder of the HHERA Report, refer to the April 2016 Permit Application.
  • [Revised] Statement of Basis: Evoqua Water Technologies LLC (pdf) (25.81 MB, November 2016)
    Revised Statement of Basis for a proposed RCRA permit for storage and processing of RCRA regulated hazardous wastes - Colorado River Indian Tribes and Evoqua Water Technologies LLC
  • Hoja informativa: Permiso propuesto para la planta Evoqua Water Technologies LLC cerca de Parker, Arizona (pdf) (739.17 KB, Noviembre de 2016)
    Información sobre la propuesta de la EPA de emitir un permiso para la gestión de residuos peligrosos para las instalaciones de Evoqua Water Technologies LLC (Evoqua) cerca de Parker, Arizona.
  • RCRA PERMIT [DRAFT]: Evoqua Water Technologies LLC, Colorado River Indian Tribes (pdf) (1.27 MB, September 2016)
    DRAFT RCRA Permit for Evoqua Water Technologies, LLC, Carbon Reactivation Facility EPA ID # AZD982441263
  • EPA Fact Sheet: Proposed Permit for the Evoqua Water Technologies LLC Facility Near Parker, Arizona (pdf) (732.11 KB, September 2016)
    Information about EPA's proposal to issue a permit for hazardous waste management for the Evoqua Water Technologies LLC facility (Evoqua) near Parker, Arizona.
  • EPA Fact Sheet: Risk Assessment at Evoqua Water Technologies (pdf) (1.11 MB, June 2016)
    Evoqua Human Health and Ecological Risk Assessment Fact Sheet by U.S. EPA Pacific Southwest, Region 9.
  • Fact Sheet: National Historic Preservation Act Determination at Evoqua Water Technologies (pdf) (733.63 KB, June, 2016)
    This fact sheet summarizes the National Historic Preservation Act (NHPA) review, in which EPA assesses potential impacts of the permit decision on historic or culturally significant properties.
  • Evoqua Water Technologies LLC RCRA Part B Permit Application (pdf) (47.23 MB, April 2016)
    Evoqua’s application for a RCRA permit for its carbon regeneration facility in Parker, Arizona. The full Risk Assessment Report is Appendix XI.
  • Performance Demonstration Test Report (pdf) (1.75 MB, June 2006)
    Trial Burn (Performance Demonstration Test) report.
  • Performance Demonstration Test Plan (pdf) (1.11 MB, May 2003)
    Trial Burn (Performance Demonstration Test) plan.

Other Names

Desotec US LLC has previously been known as Evoqua Water Technologies LLC, Siemens, US Filter, and Westates. The facility is now referred to as Desotec, but the prior names remain in older documents attached to this web page.

Related Content

  • Desotec Home
  • About the Final RCRA Permit
  • Final Permit and Supporting Documents
  • Air Emissions and Risk Assessment
  • Facility Inspections and Enforcement Actions
  • RCRA Permit Application, Draft Permit, Fact Sheets, Risk Assessment and Trial Burn Documents
  • Environmental Appeals Board: Index of Filings

EPA in Arizona

  • Topics and Resources
    • Desotec US LLC (Evoqua)
      • About the Final RCRA Permit
      • RCRA Permit
      • Inspection Reports & Enforcement Actions
      • Air Emissions and Risk Assessment
      • Related Documents
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Last updated on May 15, 2025
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