Programs

Permanent Water Quality

Welcome to the Colorado Department of Transportation Permanent Water Quality (PWQ) web page, where information is provided on CDOT's PWQ Program. This program is required under CDOT's Municipal Separate Stormwater Permit.

All new construction and redevelopment sites in the CDOT MS4 permit area are required to evaluate whether stormwater controls are required (per CDOT's NDRD Program requirements) to address higher runoff volumes and pollutant loads associated with an increase in impervious surfaces. These controls are here referred to as Permanent Water Quality Control Measures (aka, permanent BMPs).

The specific PWQ Program Requirements are provided under the MS4 PWQ Program Requirements heading below. CDOT advertised projects can find more information on mitigation pool funding under the Applying for CDOT Mitigation Pool Funding link below. Local Agency-advertised projects seeking mitigation pool funding should visit the PWQ Local Agency Call for Projects site.

For program assistance, consult region water pollution control managers/water quality specialists (see Region Contacts), or contact NDRD Program Manager Amber Williams at [email protected] and 303-757-9814.

This section applies to CDOT advertised projects only. Local Agency-advertised projects seeking mitigation pool funding should visit the PWQ Local Agency Call for Projects site.

There are three types of funding processes for CDOT projects:

  1. an expedited process for onsite PWQ required projects with a total construction budget under $100 million;
  2. an email request to [email protected] with required forms and a brief description for onsite PWQ required projects with a total construction budget over $100 million; and
  3. an application process for "Plus" or Water Quality Only projects seeking funding.

To determine which process to follow, project leads should consult the PWQ Program Manual and Flow Charts for Determining PWQ Project Category and Funding Process. Guidance on how to obtain funds for onsite PWQ required projects under $100 million can also be found in the PWQ Program Manual.

The Mitigation Pool Committee will review CDOT applications on a quarterly basis after each fiscal year quarter. Applications can be submitted to [email protected] on an ongoing basis. Applications must be received by the following quarterly review deadlines: Sept. 30, Dec. 31, March 31 and June 30. For projects that must apply for mitigation pool funding, use the following guidance, application and required tables:


MS4 PWQ Program Requirements

This section provides links to the documents that describe the PWQ Program Requirements, including Manuals and other documents that dictate program requirements, documents that must be completed as deliverables and other tools. 

Program Description Document - coming Sept 1, 2017

PWQ Program Manual
This manual provides PWQ Program requirements. The March 1, 2017, PWQ Program Manual is the implementation document for CDOT's PWQ Program and incorporates the MS4 Permit Compliance Schedule requirements. This document applies to all projects starting design, or in early design, on or after March 1, 2017. For projects that have completed significant design prior to March 1, 2017, see the Interim NDRD Program Guidance below.

Interim NDRD Program Guidance
This document provides the Interim NDRD Program requirements. This document applies to all projects with significant design completed prior to March 1, 2017.

PWQ Section of the Drainage Design Manual
This document provides criteria for designing PWQ CMs. This section replaces Chapters 12 and 19 of the CDOT Drainage Design Manual (2004) and Chapter 6 of CDOT’s Erosion Control & Stormwater Quality Guide (2002). This section will be a stand-alone section until the revision of the 2004 Drainage Design Manual is completed mid-2017.

Water Rights Guidance
CDOT guidance on Colorado Senate Bill 15-212 and CDOT process for reporting.

Design Bulletin 2015-5: Tracking PWQ Pool Money
The purpose of this bulletin is to provide direction on tracking Permanent Water Quality (PWQ) project money. A project follows this procedure anytime PWQ Mitigation Pool funds are used (including local agency projects).

Design Bulletin 2015-6: PWQ Mitigation Pool
The purpose of this bulletin is to provide direction on tracking Permanent Water Quality (PWQ) project money. A project follows this procedure anytime PWQ Mitigation Pool funds are used (including local agency projects).

PWQ Evaluation and Tracking (PET) Form and Directions
For evaluation and tracking purposes all projects must complete the PET Form. This form is used to determine whether PWQ is required on a construction site and to track PWQ requirements. This form should be used for any project that is in design as of March 1, 2017. Projects that have completed significant design as of March 1, 2017, should use the Interim NDRD form below.

NDRD Evaluation and Tracking Form
For evaluation and tracking purposes, all projects that have completed significant design by March 1, 2017, must complete and NDRD Evaluation and Tracking Form.

NDRD Evaluation and Tracking Form Directions
Detailed directions for completing the NDRD Evaluation and Tracking Form.

PWQ Cost Estimate spreadsheet
All projects installing PWQ CMs must complete the PWQ Cost Estimate spreadsheet. Projects should specifically designate when PWQ Pool funds are being used and for which items. Additionally, these projects must track PWQ expenditures and provide to the PWQ Program Manager.

Blank Permanent Water Quality Geodatabase
Prior to final acceptance of a PWQ project, region water quality staff submits a populated version of the blank PWQ Geodatabase to HQ. This database is populated by the project consultant and reviewed by region water quality staff. This database is used to populate CDOT's inventory in GIS.

PWQ Program Flow Charts for determining PWQ Project Category and Funding Process - coming soon!
Dictates the PWQ requirements and which funding process can be utilized (second page of flow chart).

Interim NDRD Flow Charts for Determining PWQ Project Category and Funding Process Dictates the PWQ requirements and which funding process can be utilized (second page of flow chart).

PWQ Design Checklist - coming soon!
Maintenance Checklist - coming soon!

Water Quality Contacts

Headquarters

Jean Cordova

[email protected]

303-512-4053

Region 1

Susie Hagie

303-757-9932

Region 2

Troy Rice

[email protected]

719-227-3260

Region 3

Leslie Modrick

[email protected]

970-683-6254

Region 4

Nick Schipanski

[email protected]us

970-350-2127

Region 5

Vacant

Swipe table to see more content

Hydraulic Engineer Contacts

Headquarters

Al Gross

303-757-9267

Region 1

Samer AlHaj

303-365-7248

Luis Calderon

303-365-7245

Zak Humbles

303-365-7253

Scott Leiker

303-365-7260

Region 2

Dennis Cress

719-562-5580

Andrew Stecklein

719-227-3264

Region 3

Stuart Gardner

970-683-6354

Region 4

Steven Griffin

970-506-4947

Long Phan

970-506-4959

Region 5

Walter Buckholts

970-385-1445

Swipe table to see more content
Contact Us
  • Jean Cordova
    Water Quality Section Manager
    303-512-4053


     
  • Rachel Hansgen
    Water Quality Specialist
    303-757-9975


  • Bob McDade
    Water Quality Specialist
    303-757-9127


  • Tripp Minges
    CDPHE Liaison
    303-757-9788


  • Jeremiah Unger
    Water Quality Specialist
    303-757-9497


Report an Illegal Discharge
  • Hotline: 303-512-4H2O

  • Illegal discharges (aka, illicit discharges) emit into CDOT's storm drain system pollutants (e.g., oil, grease, fertilizers, pesticides, grass clippings, leaves, or odd smelling/colored substances).

    Learn more.
Colorado: The Official State Web Portal