CEOS - Dewatering General Permit Program

Permit applications, Dewatering training, Compliance assistance, and Technical resources 

The Water Quality Control Division processes all dewatering-program permit actions through the Colorado Environmental Online Services (CEOS) portal. Use this page to access CEOS and to find guidance and technical resources for completing and submitting permit applications. 

Dewatering General Permits and Fact Sheets

Welcome to CEOS: CEOS Login   

• Submit applications, modifications, withdrawals, change of contact, transfer of ownership, and permit terminations requests.

• Monitor submittal progress.

• Receive notifications and alerts.

• Welcome to CEOS letter.  

CEOS guidance and assistance:

• New CEOS Transfer Application Process.
• Memo for transferring signatures
• CEOS Quick Guide.
• CEOS Extended Guide and Standard Operating Procedures – Steps for Setting-up CEOs account and initiating permit application process.
• CEOS Update- Preparers creating facilities guidance.
• For additional support, please contact us at:

          Email: cdphe_ceos_support@state.co.us  or cdphe_wqcd_permits@state.co.us

          Permits Phone: 303-692-3517
 

Dewatering permit overview and application guidance:

• Dewatering General Permit Program Overview

• Guidance for Completing a Dewatering Permit Application – Steps for selecting and completing an application.

Required application supplemental forms:

• Dewatering Permit Application Supplement

• Well Development and Pump Testing Application Supplement

• Termination Application Supplement 

• Transfer Application Supplement form part 2

Dewatering training, compliance assistance, and technical resources

Dewatering renewal training:

The division hosted an online training session on the dewatering general permits that were renewed and effective on June 1, 2020. The training highlights the differences between the previous permits and the renewal permits. Compliance assistance guidance documents are also provided.

• A recording of the training is available: Dewatering Renewal Training Webinar.
• A PDF of the presentation slides is available: Dewatering Renewal Training Slides.

Dewatering compliance assistance:

• Dewatering general permit program and compliance FAQ.
• Records requirements checklist for general permit COG080000.
• Records requirements checklist for general permits COG317000 and COG318000.

Per- and Polyfluoroalkyl Substances (PFAS):

• Overview of PFAS Requirements for Dewatering.
• PFAS Sum Quick Calculator Tool.

Selenium Treatment:

• Evaluation of selenium treatment feasibility for groundwater dewatering discharges.

Determining low flow:

• Step-by-Step Guide to Estimating the Low Flow of a Receiving Stream Using eRAMs.

• CDPHE eRAMS Module (Environmental Risk Assessment and Management System).

Maps, tools, and searchable databases:

• Finding Sources of Groundwater Contamination Near Your Site.

• Identifying Stream Segments, phosphorus control areas, and more. 

Additional Resources:

• Clean Water Policies:

  • Practical Quantitation Limit (PQL) Guidance.

  • Groundwater Discharge Permitting of Solid Waste Activities (CW10).

  • Low Risk Discharge Policy and Guidance (CWP27).

  • Division of Water Resources Policy 2020-3 - Short term Discharges to Groundwater from Water Well Activities.

• Discharge Monitoring Report (DMR) Information.

• Additional Guidance and Compliance Assistance:

  • Compliance Assistance Guidance and Forms.

  • Spill reporting.

  • Operator certification requirement.

• Contacts – For Permitting Technical Assistance.