NPDES 2022 Construction Stormwater General Permit
Announcements
Upcoming Meetings
There are no upcoming meetings scheduled at this time.
Construction Stormwater General Permit Order 2022-0057-DWQ (adopted September 8, 2022)
- Complete download with Attachments
- Order
- Fact Sheet
- Attachment A – Acronyms and Terms
- Attachment B – Glossary
- Attachment C – Contacts
- Attachment D – Traditional Construction Risk Level Requirements
- Attachment D.1 – Risk Determination Worksheet
- Attachment D.2 – General Permit Registration Document Requirements
- Attachment E – Linear Underground and Overhead Project Requirements
- Attachment E.1 – Linear Underground and Overhead Project Area or Segment Area Type Determination
- Attachment E.2 – Permit Registration Document Requirements for Linear Underground and Overhead Projects
- Attachment F – Active Treatment System Requirements
- Attachment G – Requirements for the Use of Passive Treatment Technologies
- Attachment H – Total Maximum Daily Load Implementation Requirements Applicable to Construction Stormwater Discharges
- Attachment I – Requirements for Dischargers Granted a California Ocean Plan Exception for Discharges to Areas of Special Biological Significance
- Attachment J – Dewatering Requirements
Guidance
General
Map References
- 2022 CGP High-Risk Receiving Waters Map Tool
- 2022 CGP TMDL Map Tool
- 2022 CGP K Factor Map Tool
- 2022 CGP LS Factor Map Tool
SMARTS Help Guides
2022 Construction Stormwater General Permit Road Show
The California Water Boards hosted the 2022 Construction Stormwater General Permit Road Show, a series of informational workshops held across the state, in the summer of 2023. This was an opportunity for dischargers, municipalities, and stormwater professionals to discuss expectations for the new permit requirements, effective September 1, 2023, with State and Regional Water Board staff. The staff presentations and available workshop recordings are posted below:
- Staff Presentation – 2022 CGP Requirement Overview
- Staff Presentation – SMARTS Notice of Intent Overview
| Location | Date | Recordings |
|---|---|---|
| Rancho Cordova | 6/27/2023 | Recording |
| Santa Rosa | 6/29/2023 | Coming Soon |
| Los Angeles | 7/11/2023 | Recording |
| Riverside | 7/12/2023 | Recording |
| San Diego | 7/18/2023 | Recording |
| Fresno/Redding (virtual only) | 7/20/2023 | Recording |
| Oakland | 7/26/2023 | Recording |
| San Luis Obispo | 7/27/2023 | Recording |
| Truckee | 8/4/2023 | Recording |
| Palm Desert | 8/22/2023 | Recording |
| Victorville | 8/23/2023 | Recording |
Past Meetings and Documents
State Water Board Meeting for consideration of adoption of the proposed statewide Construction Stormwater General Permit
State Water Board Meeting:
Thursday, September 8, 2022: 9:30 a.m.
See July 2022 Public Notice for detailed meeting information.
Virtual Public Workshop – Focused on the proposed statewide Construction Stormwater General Permit
Public Workshop:
Tuesday, August 9, 2022: 9:00 a.m. – 1:00 p.m.
State Water Board Workshop for proposed statewide Construction Stormwater General Permit Reissuance
State Water Board Workshop:
Tuesday, April 19, 2022: 9:00 a.m. – 9:00 p.m.
Public Workshop for proposed statewide Construction Stormwater General Permit Reissuance
Public Workshop:
Tuesday, April 12, 2022: 8:00 a.m. – 12:00 p.m.
State Water Board Public Hearing – Proposed Statewide NPDES Construction Stormwater General Permit Reissuance
Public Hearing:
Wednesday, August 4, 2021 – 1:00 p.m.
Virtual Public Workshops – Focused on the draft statewide NPDES Construction Stormwater General Permit
Virtual Workshop #1:
Wednesday, June 9, 2021: 1:30 p.m. – 5:00 p.m.
Zoom Registration Link
Virtual Workshop #2:
Thursday, June 10, 2021: 8:30 a.m. – 12:00 p.m.
Zoom Registration Link
Virtual Public Workshops – Focused on the preliminary staff draft of the NPDES Construction Stormwater General Permit
Virtual Workshop #1:
Wednesday, December 9, 2020: 9:00 a.m. – 12:30 p.m.
Virtual Workshop #2:
Monday, December 14, 2020: 12:30 p.m. – 4:00 p.m.
Stakeholder Meeting – Focused on the proposed total maximum daily load implementation requirements
Thursday, September 19, 2019: 10:00 a.m. – 3:00 p.m.
Joe Serna Jr. - CalEPA Headquarters Building
Sierra Hearing Room
1001 I Street, Second Floor
Sacramento, CA, 95814
Please email Brandon Roosenboom to request the presentation materials presented by the California Building Industry Association or California Coast Keeper Alliance.
- NEW! Changes adopted during the September 8, 2022 Board Meeting
- NEW! Construction Stormwater General Permit Reissuance – Change Sheet No. 2
- NEW! Construction Stormwater General Permit Reissuance – Change Sheet No. 1
- Order – (Clean PDF | Word Markup)
- Fact Sheet – (Clean PDF | Word Markup)
- Attachment A – Acronyms and Terms – (Clean PDF | Word Markup)
- Attachment B – Glossary – (Clean PDF | Word Markup)
- Attachment C – Contacts – (Clean PDF | Word Markup)
- Attachment D – Traditional Construction Risk Level Requirements – (Clean PDF | Word Markup)
- Attachment D.1 – Risk Determination Worksheet – (Clean PDF | Word Markup)
- Attachment D.2 – General Permit Registration Document Requirements – (Clean PDF | Word Markup)
- Attachment E – Linear Underground and Overhead Project Requirements – (Clean PDF | Word Markup)
- Attachment E.1 – Linear Underground and Overhead Project Area or Segment Area Type Determination – (Clean PDF | Word Markup)
- Attachment E.2 – Permit Registration Document Requirements for Linear Underground and Overhead Projects – (Clean PDF | Word Markup)
- Attachment F – Active Treatment System Requirements – (Clean PDF | Word Markup)
- Attachment G – Requirements for the Use of Passive Treatment Technologies – (Clean PDF | Word Markup)
- Attachment H – Total Maximum Daily Load Implementation Requirements Applicable to Construction Stormwater Discharges – (Clean PDF | Word Markup)
- Attachment I – Requirements for Dischargers Granted a California Ocean Plan Exception for Discharges to Areas of Special Significance – (Clean PDF | Word Markup)
- Attachment J – Dewatering Requirements – (Clean PDF | Word Markup)
Overview
The State Water Board received four public comment letters regarding the proposed antidegradation findings in the July 22, 2022 proposed Statewide NPDES Construction Stormwater General Permit.
The Response to Comments document for the proposed antidegradation findings contains a summary of the submitted public comments, and corresponding responses.
Response to Comments Documents
Comment Letters
If you would like to request a copy of written public comments submitted to the Board on an item noticed for public comment, please send a request to commentletters@waterboards.ca.gov, identifying the item as listed on the Notice or board meeting agenda by date, agenda item and number (if any). The Clerk of the Board will respond by sending a link to access them.
Overview
After the issuance of the proposed Statewide NPDES Construction Stormwater General Permit Reissuance on March 30, 2022, and the subsequent staff-led public workshop on April 12, 2022, and the State Water Board workshop on April 19, 2022, the State Water Board authorized a 30-day public comment period to address four distinct categories. The State Water Board received 14 public comment letters with 88 individual comments from interested parties and stakeholders regarding the permit reissuance.
The Construction Stormwater General Permit Reissuance Limited-Scope Response to Comments Catalog identifies the commenters and provides a detailed response to each individually cataloged comment; the Response to Comments Summary provides a summary response to similar comments.
Response to Comments Documents
- Construction Stormwater General Permit Reissuance Limited-Scope Response to Comments Catalog (excel spreadsheet)
- Construction Stormwater General Permit Reissuance Limited-Scope Response to Comments Summary
Comment Letters
If you would like to request a copy of written public comments submitted to the Board on an item noticed for public comment, please send a request to commentletters@waterboards.ca.gov, identifying the item as listed on the Notice or board meeting agenda by date, agenda item and number (if any). The Clerk of the Board will respond by sending a link to access them.
- Order – (Clean PDF | Word Markup )
- Fact Sheet – (Clean PDF | Word Markup )
- Attachment A – Acronyms and Terms – (Clean PDF | Word Markup )
- Attachment B – Glossary – (Clean PDF | Word Markup )
- Attachment C – Contacts – (Clean PDF | PDF Comparison )
- Attachment D – Traditional Construction Risk Level – (Clean PDF | Word Markup )
- Attachment D.1 – Risk Determination Worksheet – (Clean PDF | Word Markup )
- Attachment D.2 – Permit Registration Documents – (Clean PDF | Word Markup )
- Attachment E – Linear Underground/Overhead Project Requirements – (Clean PDF | Word Markup )
- Attachment E.1 – Linear Underground/Overhead Project Type Determination – (Clean PDF | Word Markup )
- Attachment E.2 – Linear Underground/Overhead Project Permit Registration Documents – (Clean PDF | Word Markup )
- Attachment F – Active Treatment System Requirements – (Clean PDF | Word Markup )
- Attachment G – Passive Treatment Technology Requirements – (Clean PDF | Word Markup )
- Attachment H – Total Maximum Daily Loads – (Clean PDF | Word Markup )
- Attachment I – Ocean Plan – (Clean PDF | Word Markup )
- Attachment J – Dewatering Requirements – (Clean PDF | Word Markup )
Overview
After the issuance of the draft Statewide NPDES Construction Stormwater General Permit Reissuance on May 28, 2021, the State Water Board received public comments from interested parties and stakeholders regarding the draft permit. The State Water Board received 75 public comment letters with an estimated 1200 individual comments.
The Construction Stormwater General Permit Reissuance Response to Comments Catalog identifies the commenters and provides a detailed response to each individually cataloged comment; the Response to Comments Summary provides a summary response to similar comments.
Response to Comments Documents
- Construction Stormwater General Permit Reissuance Response to Comments Catalog (excel spreadsheet)
- Construction Stormwater General Permit Reissuance Response to Comments Summary
Comment Letters
If you would like to request a copy of written public comments submitted to the Board on an item noticed for public comment, please send a request to commentletters@waterboards.ca.gov, identifying the item as listed on the Notice or board meeting agenda by date, agenda item and number (if any). The Clerk of the Board will respond by sending a link to access them.
- Order
- Fact Sheet
- Attachment A – Linear Underground/Overhead Project Requirements
- Attachment A.1 – Linear Underground/Overhead Project Type Determination
- Attachment A.2 – Linear Underground/Overhead Project Permit Registration Documents
- Attachment B – Permit Registration Documents
- Attachment C – Risk Level 1 Requirements
- Attachment D – Risk Level 2 Requirements
- Attachment E – Risk Level 3 Requirements
- Attachment F – Active Treatment System Requirements
- Attachment G – Passive Treatment Technology Requirements
- Attachment H – TMDL Implementation Requirements
- Attachment I – Ocean Plan Exemption Requirements
- Attachment J – Dewatering Requirements
- Appendix 1 – Risk Determination Worksheet
- Appendix 2 – Glossary
- Appendix 3 – Acronyms and Terms
- Appendix 4 – Contacts
- Order
- Fact Sheet
- Attachment A – Linear Underground/Overhead Project Requirements
- Attachment A.1 – Linear Underground/Overhead Project Type Determination
- Attachment A.2 – Linear Underground/Overhead Project Permit Registration Documents
- Attachment B – Permit Registration Documents
- Attachment C – Risk Level 1 Requirements
- Attachment D – Risk Level 2 Requirements
- Attachment E – Risk Level 3 Requirements
- Attachment F – Active Treatment System Requirements
- Attachment G – Passive Treatment Technology Requirements
- Attachment H – TMDL Implementation Requirements
- Attachment I – Ocean Plan Exemption Requirements
- Appendix 1 – Risk Determination Worksheet (This excel worksheet is available upon request sent to: stormwater@waterboards.ca.gov.)
- Appendix 2 – Glossary
- Appendix 3 – Acronyms and Terms
- Appendix 4 – Contacts
On September 2, 2022, a California Coastkeeper Alliance representative contacted Board Members Joaquin Esquivel, Dorene D’Adamo, Sean Maguire, Laurel Firestone, and Nichole Morgan to discuss concerns regarding the Ventura River Algae TMDL.
On September 1, 2022, building industry stakeholders contacted Board Member Joaquin Esquivel to discuss concerns regarding the proposed Statewide NPDES Construction Stormwater General Permit which is being considered for adoption on September 8, 2022.
On August 31, 2022, building industry stakeholders contacted Board Member Sean Maguire to discuss concerns regarding the proposed Statewide NPDES Construction Stormwater General Permit which is being considered for adoption on September 8, 2022.
On August 30, 2022, building industry stakeholders contacted Board Member DeeDee D’Adamo to discuss concerns regarding the proposed Statewide NPDES Construction Stormwater General Permit which is being considered for adoption on September 8, 2022.
On August 29, 2022, building industry stakeholders contacted Board Member Nichole Morgan to discuss concerns regarding the proposed Statewide NPDES Construction Stormwater General Permit which is being considered for adoption on September 8, 2022.
On August 23, 2022, building industry stakeholders contacted Board Member Laurel Firestone to discuss concerns regarding the proposed Statewide NPDES Construction Stormwater General Permit which is being considered for adoption on September 8, 2022.
On June 16, 2022, the California Coastkeeper Alliance representatives contacted Board Member Dorene D'Adamo to discuss nutrient-based pollutant numeric action levels, use of total suspended solids numeric effluent limitations, the regulator transition period, and what constitutes a violation of a TMDL-related NEL.
On June 13, 2022, the California Coastkeeper Alliance representatives contacted Board Member Sean Maguire to discuss nutrient-based pollutant numeric action levels, use of total suspended solids numeric effluent limitations, the regulator transition period, and what constitutes a violation of a TMDL-related NEL.
On May 26, 2022, Board Members Dorene D’Adamo and Sean Maguire joined State and Regional Water Board staff on several site visits to learn more about the implementation of statewide NPDES Construction Stormwater General Permit requirements.
On March 4, 2022, building industry stakeholders contacted Board Chair Joaquin Esquivel to discuss concerns regarding the draft Statewide NPDES Construction Stormwater General Permit Reissuance.
On March 2, 2022, building industry stakeholders contacted Board Member Sean Maguire to discuss concerns regarding the draft Statewide NPDES Construction Stormwater General Permit Reissuance.
On February 25, 2022, building industry stakeholders contacted Board Member Nichole Morgan to discuss concerns regarding the draft Statewide NPDES Construction Stormwater General Permit Reissuance.
On February 18, 2022, building industry stakeholders contacted Board Member Dorene D’Adamo to discuss concerns regarding the draft Statewide NPDES Construction Stormwater General Permit Reissuance.
