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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): About the Final RCRA Permit

EPA has issued a final RCRA permit that sets operating require­ments for the Desotec US LLC (Formerly Evoqua Water Technologies LLC) facility to ensure protection of public health and the environment. The Final RCRA Permit and supporting documents, as well as the Permit Application and Draft Permit are available on this website. Please note that earlier documents, including on EPA’s website, may still use previous facility names such as Evoqua Water Technologies, Siemens, US Filter, and Westates.

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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    • Navajo Nation Abandoned Uranium Mines
    • Tuba City Dump
    • U.S.-Mexico Border Program (Border 2025)
Contact Us about EPA in Arizona
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Last updated on May 28, 2025
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