Clean Water Branch

New (Updated September 13, 2021)


In accordance with the State’s efforts to slow the spread of COVID-19, effective July 1, 2020 the Clean Water Branch (CWB) will continue to no longer conduct in-person meetings. If you or your organization would like to request a meeting with CWB staff, please contact us at (808) 586‑4309 during normal business hours (Monday – Friday, 7:45 a.m. – 4:15 p.m., excluding holidays) or at [email protected] to schedule an online meeting.

The CWB asks that the public minimizes any other in-person visits to our office as much as possible. If you can conduct your business over the phone or through email, please do not visit the building. Due to COVID-19, effective September 13, 2021 our building has the following requirements regarding visitors:

  • Proof of COVID-19 vaccination. Proof includes:
    • A CDC vaccination card;
    • VAMS (Vaccination Administration Management System) printout or certificate;
    • DOD DD Form 2766C;
    • State of Hawaii SMART Health Card;
    • Common Pass applications;
    • CLEAR Health Pass;
    • Azova;
    • IBM Digital Health Pass; or
    • Other similar products available to the public.

  • Exemptions to providing proof of vaccination includes:
    • Document of a negative COVID-19 test no more than 72 hours old;
    • Children under 12 years old; or
    • Individuals remaining 10 minutes or less within the building.

    • Fever;
    • Cough;
    • Shortness of breath;
    • Feeling ill; or
    • Other respiratory illness.

    • You have traveled outside of Hawaii in the past 14 days; or
    • You have had close, prolonged contact with a person who has or is suspected to have coronavirus.

  • You must wear a mask at all times while inside the building.
  • You must practice social distancing when inside the building as much as possible. 6 feet of distance between yourself and others is recommended.

As the situation regarding COVID-19 continues to evolve, the above procedures may change.

The CWB thanks you for your cooperation and understanding during these times.




The Department of Health (DOH), Clean Water Branch (CWB) will receive written comments and hold a public hearing on proposed amendments to HAR 11-55 Appendices B (discharges of industrial storm water), E (discharges of once-through cooling water less than 1.0 million gallons per day), F (discharges of hydrotesting waters), G (discharges of dewatering effluent), and K (discharges from small municipal separate storm sewer systems).

Copies of the amended Appendices and their corresponding fact sheets can be accessed from: Proposed Amended HAR 11-55 Appendices B, E, F, G, K

If you have any issues opening the above PDF files, please try using a different browser. If you continue to experience any difficulties, please contact the Clean Water Branch at [email protected] for assistance.

Written comments will be accepted until 4:30 p.m. on Wednesday, August 25, 2021, through e-mail at: [email protected] or through postal mail at P.O. Box 3378, Honolulu, HI 96801-3378.

The DOH will hold a virtual public hearing so that interested parties may orally convey their comments or summary of written comments. Although not required, the DOH strongly encourages and requests comments to be submitted in writing. The DOH will limit oral comments to three (3) minutes per commenter so each commenter has an opportunity to present their views. The virtual public hearing will be held at 9:00 a.m. on Wednesday, August 25, 2021.

Please register to participate or listen to this virtual public hearing: After registering, you will receive a confirmation email containing information about joining the virtual public hearing. During the virtual public hearing, you will be informed when to provide your oral comments.

You may also participate or listen by phone by calling 1-669-900‑9128. When prompted, enter conference code: 990 7750 5413.

For more information or if you have special needs due to disability, please contact Mr. Darryl Lum of the CWB at the above e-mail address or at (808) 586‑4309 (voice), at least seven (7) business days before the scheduled hearing. For those who use a TTY/TDD, please call through Verizon Hawaii Telephone Relay Service, at 1 711 or 1-877-447‑5991.


Re-Public Notice and Public Comment Period Extension
Thirty Meter Telescope (TMT) International Observatory
NPDES Permit No. HI S000431
April 8, 2021 – June 7, 2021

On April 8, 2021, the Department of Health Clean Water Branch (CWB) published in the Hawaii Tribune-Herald its tentative recommendation to renew a Water Pollution Control Permit for the Thirty Meter Telescope (TMT) International Observatory, National Pollutant Discharge Elimination System (NPDES) Permit No. HI S000431.

The previously public-noticed documents were worded in a way that may imply that the Director of Health has made certain determinations with respect to the permit application and were, therefore, rescinded. The current public notice will incorporate all previously submitted public comments (May 23, 2019, public notice and June 25, 2019 public hearing) into this new public comment record. The CWB is extending the public comment period an additional 30-days, which is now scheduled to end June 7, 2021.

Written comments can be emailed to [email protected] or mailed to our office at 2827 Waimano Home Road, #225, Pearl City, Hawaii 96782. All mailed comments must be post marked no later than June 7, 2021. The new permit recommendation and fact sheet can be viewed on CWB’s website at:


Proposed Blanket Section 401 Water Quality Certification (WQC1092)

The Clean Water Branch is providing public notice of a proposed Blanket Section 401 Water Quality Certification (WQC1092) for the renewed 2020 United States Army Corps of Engineers (USACE) Nationwide Permits (NWPs). A public notice was posted in the Maui News on September 23, 2020 and in the Star Advertiser, Garden Island, West Hawaii Today, and Hawaii Tribune Herald on September 24, 2020. The Department of Health, Clean Water Branch is soliciting comments on the proposed WQC1092 for a period of 30 calendar days from September 24, 2020. Persons wishing to comment on the proposed WQC1092 or to request a public hearing, should submit their comments or requests in writing no later than 30 calendar days after the date of the notice, either through e-mail at: [email protected] or mailed to our office at 2827 Waimano Home Road #225, Pearl City, Hawaii 96782.

All written comments and request received on time will be considered. If DOH determines that there is significant public interest, a public hearing may be held after at least 30 calendar days of public notice. If DOH’s position is substantially unchanged after considering all timely written comments and all comments at any public hearing that may be held, then the DOH will issue the proposed WQC1092 and this action will be final. Please notify anyone you know who would be interested in this matter.

Please view the proposed WQC1092 and a copy of the public notice by clicking here.


Final Individual Permits

Due to database restrictions, as of late 2018, the Clean Water Branch (CWB) has been unable to upload final individual permit documents to the Water Pollution Control (WPC) database. Due to this, the public WPC viewer does not have the most current final individual permit documents. The CWB will now begin uploading final individual permit documents from late 2018 and later to the CWB website. See the Final Individual Permits page for access to these documents.

TMT Response to June 25, 2019 Public Hearing CommentsThe Department of Health’s response to the June 25, 2019 public hearing comments on the National Pollutant Discharge Elimination System (NPDES) permit renewal for the Thirty Meter Telescope International Observatory is available at: Response to Public Hearing Comments – TMT International Observatory – HIS000431.
TMT Request for Contested Case Hearing

Any interested party who submitted comments during the public notice period or submitted testimony during the public hearing may request a contested case hearing. Requests may be mailed to the Director of Health, 1250 Punchbowl Street, Honolulu, Hawaii 96813. The requirements for requesting a contested case are found in Hawaii Administrative Rules, Chapter 11-1. A copy of these rules is available at Requests must include the requester’s first and last name, mailing address, email, and phone number. The Director of Health will accept requests for a contested case hearing no later than August 9, 2019, by the close of business at 4:30 p.m.

To view the revised public hearing notice, the draft permit and rationale, the renewal application, and/or the original application please go to Public Notices and Updates.

The Hawaii Department of Health, Clean Water Branch (CWB) has moved. Our new office is located in Pearl City on Waimano Home Road.
If you are sending mail to us, our address is:

State of Hawaii
Clean Water Branch
2827 Waimano Home Rd #225
Pearl City, HI 96782
Items of note:

  • Current CWB phone numbers and employee email addresses remain unchanged.  The CWB no longer uses a fax, however, emails to [email protected] will suffice for communication if a fax was previously required.
  • A guard is posted at the front gate of the Waimano Home Road facility, and, to gain access, guests may be required to show proper identification and/or inform the guard of the name and address of the agency they are visiting.

Please pardon any inconveniences due to our move. Your patience is truly appreciated! Any questions, please give us a call at (808) 586‑4309.

Sign Up for the new Water Quality Alert System

The Hawaii Department of Health’s Clean Water Branch is proud to announce that we have launched a new water quality alert notification system with user-friendly features to keep the community updated about our beaches throughout our islands.

To receive email alert notifications, click on “Current Water Quality Advisories” in red text at the right side of this webpage and click the “Subscribe” button at the top of the viewer page and enter your email address.

If you have any questions, please contact us at: [email protected].

Water Pollution Control (WPC) Viewer for Public Access to Government Documents

The WPC Viewer offers quick and easy access to NPDES permits/WQC/documents, inspections, and enforcement actions.  All non-confidential NPDES and Section 401 WQC documents, applications, correspondence, fact sheets, rationales, final permits/certifications, completed inspections, and enforcement actions can be viewed and downloaded through the WPC Viewer website.  You can search for records by typing the permit number, facility name, or facility location in the search field; clicking on the link to the record; and pressing the Permit Information button.  Alternatively, you can zoom into the map and locate the facility you are interested in.  Note: Once you’ve found your desired facility/project, an easy way to locate documents in the WPC Viewer is to press “CTRL+F” and type a keyword.  For example, if you are looking for an issued NPDES permit, press “CTRL+F” and type “fnl”.  If you are looking for the fact sheets or rationales, press “CTRL+F” and type “fact sheet” or “rationale”.

About CWB 

Details structure of the Clean Water Branch (CWB). Includes Mission Statement, Engineering, Monitoring, and Enforcement Sections and Polluted Runoff Control Program.

Administrative Procedures

Details administrative procedures, such as  requesting a public record , public hearing, rule making, etc. Hawaii Revised Statutes (HRS), Chapter 91.

Contact Us



  • Water Quality References
  • Workshop Presentations
    The presentations given by Clean Water Branch personnel are provided for information on activities relating to the Clean Water Branch programs.  Presentations for the applicable Hawaii Administrative Rules, Chapters 11-54 and 11-55, and EPA regulations are among topics that are presented.


    • Forms
      Provides the forms needed to obtain the National Pollutant Discharge Elimination System (NPDES) permit, Zone of Mixing (ZOM), Notice of General Permit Coverage (NGPC), Conditional “No Exposure” Exclusion, and Section 401 Water Quality Certification (WQC).  Also provides the Discharge Monitoring Report (DMR) Form.  Need copies of CWB files?  Get a copy of the Request to Access a Government Record form here.  The Polluted Runoff Control Program’s Request for Proposals are available from this page.
    • E-Permitting Portal
    • Standard NPDES Permit Conditions
      These Standard NPDES Permit Conditions are attached to all NPDES Individual Permits. The Standard General Permit Conditions in Hawaii Department of Health, Hawaii Administrative Rules, Chapter 11-55, Appendix A are attached to all Notices of General Permit Coverage (NGPCs).
    • Industrial Storm Water

Determine Whether Your Facility is a Regulated Entity
NPDES Permit for Storm Water Discharge from Industrial Activities
Conditional “No-Exposure” Exclusion (CNEE)

Monitoring Section


Polluted Runoff Control Program

The Polluted Runoff Control Program administers grant money it receives from the Environmental Protection Agency (EPA) through Section 319(h) of the Federal Clean Water Act.  Provides funding information and copies of reports and plans.

Public Notices and Updates

Public notices are provided to ensure that the public is informed about environmental health issues.   Public notices may also be published in the Honolulu Star Bulletin, West Hawaii Today, Hawaii Tribune-Herald, The Maui News, and/or The Garden Isle.

Water Quality