New Mexico
Environment Department

Contact Information:
(505) 827-2855 MAIN // 1-800-219-6157 (toll free)
Environmental Emergencies:
505-827-9329 (24 hrs)

Surface Water Quality

Clean Water Act 303(d)/305(b) Integrated Report

The CWA §303(d)/305(b) Integrated Report (IR) is designed to satisfy the statutory requirements of Section (§) 303(d) and the reporting requirements of §§ 305(b) and 314 of the federal Water Pollution Control Act (33 U.S.C. 1251) commonly known as the Clean Water Act (CWA).  It is also designed to serve as a source of basic information on water quality and water pollution control programs in New Mexico.  Accordingly, the intended audience includes but is not limited to the general public, stakeholders, interest groups, consultants, state legislators, governmental agencies at all levels, as well as universities and other educational entities.  The Comprehensive Assessment and Listing Methodology (CALM) explains how New Mexico assesses surface water quality data against our most current water quality standards (20.6.4 NMAC) to determine attainment.

Contact Lynette Guevara, Assessment Coordinator, with any questions or for additional details.

The NMED SWQB invites the public to comment on the draft 2020-2022 State of New Mexico Clean Water Act (CWA) §303(d)/§305(b) Integrated List of Assessed Surface Waters (Integrated List). The Integrated List identifies whether or not a particular surface water of the state is currently meeting its designated uses. “Category 5” waters on the Integrated List specifically constitute the CWA Section 303(d) List of Impaired Waters.  The 45-day public comment period on the draft Integrated List will start July 27, 2020, and end September 10, 2020, at 5:00 p.m. MDT. During this period, the public may email comments (preferred) to for consideration and inclusion in the public record. Written comments may also be submitted via regular mail: Lynette Guevara, NMED SWQB, P.O. Box 5469, Santa Fe, New Mexico, 87502.

Following the close of the public comment period, the SWQB will prepare the final draft 2020-2022 Integrated List as amended, including a Response to Comments. The Integrated List, as an appendix of the Integrated Report, will be presented to the New Mexico Water Quality Control Commission (WQCC) for review and approval at their regularly scheduled meeting (tentatively set for November 10, 2020). The Integrated List and Report, including SWQB’s Response to Comments, will be available to the public via download from the SWQB website, or upon request (see above contact information), no later than 10 days prior to the WQCC meeting. The WQCC meeting schedule and agendas are maintained on the WQCC website ( The final Integrated Report and List, as approved by the WQCC, will then be submitted to the U.S. Environmental Protection Agency Region 6 for approval under the Clean Water Act.

Public Comment Draft 2020-2022 Integrated List 
Public Notice (English) (Español) &
Public Involvement Plan
DRAFT 2020-2022 Integrated List
DRAFT Assessment Rationale (ROD)
Public Comment Draft 2020-2022 Integrated List Summary Spreadsheets
Integrated List by IR Category
Excel & pdf
All impairments (Category 4 or 5)
Excel & pdf
2020 New Impairments
Excel & pdf
2020 De-listed impairments
Excel & pdf
2020 De-listed impairments Rev. 1
Excel & pdf, 08/20/20
Supporting Documents and Websites
Comprehensive Assessment and Listing Methodology (CALM) Data Submittal Information

2020 IR External Data Quality Determinations NMAC radionuclides public disclosure memo
IR Category 4B Demonstration for Sandia Canyon


Current and previous versions
2018-2020 (current WQCC and EPA approved)
Integrated Report (IR) Integrated List (App A)
Assessment Rationale (ROD) External Data Quality Determination
Response to Comments (App C) EPA Approval Letter
Integrated Report (IR) Integrated List (App A)
Assessment Rationale (ROD)
Response to Comments (App C) EPA Approval Letter
Integrated Report (IR) Integrated List (App A)
Assessment Rationale (ROD)
Response to Comments (App C) EPA Approval Letter
Integrated Report (IR) Integrated List (App A)
Assessment Rationale (ROD)
Response to Comments (App C) EPA Approval Letter
Integrated Report Integrated List (App A)
Assessment Rationale (ROD)
Response to Comments (App C) EPA Approval Letter
Integrated Report Integrated List (App A)
Assessment Rationale (ROD)
Response to Comments (App C) EPA Approval Letter