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Guidance on Lead & Copper Rule Revisions (LCRR) Lead Service Line Inventory (LSLI) Requirements

The SDWB is encouraging all affected water systems across the State of Hawaii to look ahead to the Lead and Copper Rule Revisions (LCRR) and it’s Lead Service Line Inventory (LSLI) requirement.  The deadline for developing an initial inventory and submitting it to the SDWB is October 16, 2024, per 40 CFR §141.84(a-b).  Water systems finding one or more lead, galvanized requiring replacement, or lead status unknown service lines in their distribution system must also, by October 16, 2024, submit a Lead Service Line Replacement Plan to the SDWB.  These two documents will help water systems identify what is known and unknown about the service line materials in their distribution system, remove lead service lines from distribution systems on both the water system and private owner sides, communicate information to the public, and establish lead service line replacement priorities.

The SDWB strongly recommends using the EPA guidance and template below to submit their draft inventory to the SDWB.  Please contact [email protected] if you require assistance.




Program Mission

The mission of the Safe Drinking Water Branch of the Department of Health is to safeguard public health by protecting Hawaii’s drinking water sources (surface water and groundwater) from contamination and assure that owners and operators of public water systems provide safe drinking water to the community. This mission is accomplished through the administration of the Safe Drinking Water Program, Underground Injection Control Program (UIC), Groundwater Protection Program (GWPP), and the Drinking Water State Revolving Fund (DWSRF).

Drinking Water Quality FAQs for CONSUMERS During EMERGENCIES

Information for WATER SYSTEMS During WILDFIRE EVENTS (Last Updated 8/9/2023, 4:15 PM)

List of Regulated Public Water Systems (as of 02/08/2022)

Statutory Requirements

Federal Requirements
Safe Drinking Water Act of 1974, P.L. 92-523
Safe Drinking Water Act Amendments of 1986, P.L. 99-339
Lead Contamination Control Act of 1988
Safe Drinking Water Act Amendments of 1996, P.L. 104-182
40 Code of Federal Regulations (CFR) Parts 35, 124, 141, 142, 144, 145, 146 and 148

State Law
Chapter 340E, Hawaii Revised Statutes
Chapter 340F, Hawaii Revised Statutes

Hawaii Administrative Rules
HAR Title 11, Chapter 19, Emergency Plan for Safe Drinking Water
HAR Title 11, Chapter 20, Public Water Systems
HAR Title 11, Chapter 21, Backflow and Cross-Connection Control
HAR Title 11, Chapter 23, Underground Injection Control
HAR Title 11, Chapter 23a, 12/21/2000 Amendment, Underground Injection Control
HAR Title 11, Chapter 25, Certification of Public Water System Operators
HAR Title 11, Chapter 65, Environmental State Revolving Funds

Water Quality Plan

DOH has updated the Water Quality Plan, which is an important component of the Hawaii Water Plan. The 2019 Water Quality Plan provides information on DOH’s ongoing water quality work across many of its different programs and describes goals and priority actions. The Plan is currently available on the DOH Water Quality webpage at (please cut and paste link information to a new browser window) or directly via this link (PDF).  Please send comments and/or suggestions to [email protected].

SDWB Standard Comments

SDWB has updated our standard comments and will no longer be responding directly to requests for comments on the following documents (Pre-consultation, Early Consultation, Preparation Notice, Draft, Final, Addendums, and/or Supplements):

  • Environmental Impact Statements (EIS)
  • Environmental Assessments (EA)
  • Conservation District Use Applications (CDUA)
  • Drinking Water Operator Certification
  • Source Water Assessment and Protection
  • Underground Injection Control (UIC) Wells

Please download the SDWBStdCmts2020.docx – signed.pdf for our standard comments regarding your project’s responsibilities to maintain drinking water quality and any necessary permitting. The SDWB will not provide direct responses to these requests. Agencies and/or project coordinators may download and use this memo as the SDWB’s official comments.

Uniform Information Practices Act (UIPA) Request

To make a Uniform Information Practices Act (UIPA) request for Safe Drinking Water, Groundwater Protection program, Underground Injection Control program, Drinking Water State Revolving Fund, and/or source water information, send an email with the completed Request to Access a Government Record (rev 12/1/15) Form (pdf | docx):

To: Safe Drinking Water Branch
Email: [email protected]
Call: 808-586-4258

Contact Us

Phone: (808) 586-4258
Fax: (808) 586-4351
E-Mail: [email protected]

  • Oahu
    Safe Drinking Water Branch
    Environmental Management Division
    Hawaii State Department of Health
    2385 Waimano Home Road, Suite 110
    Uluakupu Building 4
    Pearl City, Hawaii 96782-1400
  • East Hawaii
    Safe Drinking Water Branch – Hilo
    Hawaii District Health Office – Hilo
    1582 Kamehameha Avenue
    Hilo, Hawaii 96720
    Phone: (808) 933-0407
    Fax: (808) 933-0400

Last Update: 5 June 2024