Integrated Report and Total Maximum Daily Loads

Clean Water Act 303(d) List

On August 16, 2018, the U.S. Environmental Protection Agency (EPA) approved the 2018 State of Hawaii Water Quality Monitoring and Assessment Report.  This report provides a single, integrated submittal for fulfilling federal requirements under Sections (§) 303(d) and 305(b) of the Clean Water Act.  With this approval, the 2018 303(d) List of Impaired Waters (represented by those water bodies assigned to categories 4 and 5 in Chapter 3, 2018 §303(d) and §305(b) Water Body Assessments for Hawaii), is now in effect.

Current & Prior Reports

2018 State of Hawaii Water Quality Monitoring and Assessment Report

2016 State of Hawaii Water Quality Monitoring and Assessment Report

2014 State of Hawaii Water Quality Monitoring and Assessment Report

2010 and older reports can be found in our Library

The Total Maximum Daily Load (TMDL) Process

The TMDL process serves as a roadmap for water body restoration by focusing on improving water quality in impaired surface waters identified in the biennial State of Hawaii Water Quality Monitoring and Assessment Report. TMDLs identify sources of pollution within a watershed and determine pollutant load reductions required for a water body to meet water quality standards. The TMDL process is a vital component of implementing water quality improvement projects under Clean Water Act Section 319(h) grants, administered by the Department of Health, Polluted Runoff Control Program.

Additional information on TMDLs can be found on the U.S.Environmental Protection Agency TMDL website.


NOTICE OF PUBLIC COMMENT PERIOD-TOTAL MAXIMUM DAILY LOADS (TMDLs) FOR THE WAIKELE WATERSHED, ISLAND OF OAHU, HAWAII

 The State of Hawaii, Department of Health (DOH) requests public comments on the proposed total maximum daily loads (TMDLs) of turbidity, sediment, and nutrients for the Waikele Watershed, Oahu, under §303(d) and §303(e) of the Federal Clean Water Act, 33 U.S. Code §1313(d) and §1313(e), and 40 CFR §130.7 and §130.5. The draft document, entitled “Turbidity, Sediment and Nutrient Total Maximum Daily Loads (TMDLs) for the Waikele Watershed, Oahu, Hawaii” identifies point and nonpoint sources of water pollution, specifies the reductions necessary to meet water quality standards, and provides waste load and load allocations for each identified source. The proposed decision document will affect water pollution control permits and provide guidance for other planning and regulatory approvals within the Waikele watershed.

A copy of the draft document can be obtained by contacting the Clean Water Branch (CWB) at (808) 586-4309, CleanWaterBranch@doh.hawaii.gov, or by downloading from the CWB website at http://health.hawaii.gov/cwb/clean-water-branch-home-page/integrated-report-and-total-maximum-daily-loads/. The draft document will also be available for public review Monday through Friday between 7:45 am and 4:30 pm in the CWB office, and District Health Offices (DHOs) on Hawaii, Kauai, and Maui:

Hawaii DHO, 1582 Kamehameha Ave., Hilo, HI 96720, (808) 933-0401

Kealakekua Health Office, 79-1020 Haukapila St. Rm. 110, Kealakekua, HI 96750, (808) 322-1507

Kauai DHO, 3040 Umi St. Lihue, HI 96766, (808) 241-3323

Maui DHO 54 South High St., Rm. 300, Wailuku, HI 96793, (808) 984-8234

All comments must be received in writing no later than 4:30 pm on Thursday, August 30, 2018. Written comments postmarked by this deadline will also be accepted. Send comments to the Program Manager, Clean Water Branch, State of Hawaii Department of Health, located at 2827 Waimano Home Road #225, Pearl City, Hawaii 96782, or CleanWaterBranch@doh.hawaii.gov. Public comments and the DOH response will be used to revise the draft decision document, as necessary, for final EPA approval of the proposed TMDLs.

The public comment period has been extended and will close at 4:30 pm October 1, 2018.

Bruce Anderson, Ph.D.

Director of Health

 


DRAFT Waikele TMDL

A DRAFT version of the Waikele TMDL report is now available. To view or download a pdf of the report, please click on the following link. https://health.hawaii.gov/cwb/files/2018/08/Draft-Waikele-TMDL_Public-Review.pdf

https://health.hawaii.gov/cwb/files/2018/08/Appendix-A_Draft-Waikele_HSPF_Model_Sediment_Calibration_Report.pdf

https://health.hawaii.gov/cwb/files/2018/08/Appendix-B_Waikele_HSPF_Nutrient_Calibration_Report.pdf

https://health.hawaii.gov/cwb/files/2018/08/Appendix-C_Waikele-TMDL_LoadingCalcs.pdf

 

TMDL Technical Reports and Implementation Plans for approved TMDLs

For the DOH Submittal Letter, EPA Approval Letter, and the EPA Review Checklist, please contact Clean Water Branch.

 

KANEOHE STREAM, OAHU

UPPER KAUKONAHUA STREAM, OAHU

NAWILIWILI, KAUAI

HANALEI, KAUAI

KAPAA, OAHU

KAWA, OAHU

WAIMANALO, OAHU

ALA WAI, OAHU