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SOUTH KOHALA

Hawaii — Community Water System — PWSID: HI0000130

System Information

PWSIDHI0000130
System NameSOUTH KOHALA
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedSep 10, 1979
Last ReportedDec 8, 2025

Location & Contact

StateHawaii
CityHILO
ZIP Code96720
AddressDEPARTMENT OF WATER SUPPLY
OrganizationOKAMOTO, KEITH K.
Phone808-961-8050

Population & Service

Population Served9,612
Service Connections3,560

Drinking Water Violations (202)

This water system has 202 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Aug 1, 2024 Aug 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved Aug 15, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Aug 1, 2024 Aug 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved Aug 15, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2013 Dec 31, 2013 CARBON, TOTAL MR No Yes — TT — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 CARBON, TOTAL MR No Yes — TT — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 CARBON, TOTAL MR No Yes — TT — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2007 Dec 31, 2007 Interim Enhanced Surface Water Treatment Rule MR No No — — — Archived Dec 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2007 Dec 31, 2007 Interim Enhanced Surface Water Treatment Rule MR No No — — — Archived Dec 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Aug 1, 2007 Aug 31, 2007 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2007 Surface Water Treatment Rule
Aug 1, 2007 Aug 31, 2007 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2007 Surface Water Treatment Rule
Aug 1, 2007 Aug 31, 2007 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2007 Surface Water Treatment Rule
Aug 1, 2007 Aug 31, 2007 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2007 Surface Water Treatment Rule
Aug 1, 2007 Aug 31, 2007 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2007 Surface Water Treatment Rule
Jun 1, 2007 Jun 30, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2000 Feb 29, 2000 Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2000 Surface Water Treatment Rule
Feb 1, 2000 Feb 29, 2000 Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2000 Surface Water Treatment Rule
Feb 1, 2000 Feb 29, 2000 Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2000 Surface Water Treatment Rule
Feb 1, 2000 Feb 29, 2000 Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2000 Surface Water Treatment Rule
Jan 1, 2000 Jan 31, 2000 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2000 Surface Water Treatment Rule
Jul 1, 1999 Jul 31, 1999 Surface Water Treatment Rule TT Yes No — — — Archived Jul 31, 1999 Surface Water Treatment Rule
Jun 1, 1999 Jun 30, 1999 Surface Water Treatment Rule TT Yes No — — — Archived Jun 30, 1999 Surface Water Treatment Rule
Feb 1, 1999 Feb 28, 1999 Surface Water Treatment Rule TT Yes No — — — Archived Feb 28, 1999 Surface Water Treatment Rule
Feb 1, 1999 Feb 28, 1999 Surface Water Treatment Rule TT Yes No — — — Archived Feb 28, 1999 Surface Water Treatment Rule
Feb 1, 1999 Feb 28, 1999 Surface Water Treatment Rule TT Yes No — — — Archived Feb 28, 1999 Surface Water Treatment Rule
Jan 1, 1999 Jan 31, 1999 Surface Water Treatment Rule TT Yes No — — — Archived Jan 31, 1999 Surface Water Treatment Rule
Sep 1, 1998 Sep 30, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Sep 30, 1998 Surface Water Treatment Rule
Sep 1, 1998 Sep 30, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Sep 30, 1998 Surface Water Treatment Rule
Sep 1, 1998 Sep 30, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Sep 30, 1998 Surface Water Treatment Rule
Aug 1, 1998 Aug 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Aug 31, 1998 Surface Water Treatment Rule
Aug 1, 1998 Aug 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Aug 31, 1998 Surface Water Treatment Rule
Aug 1, 1998 Aug 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Aug 31, 1998 Surface Water Treatment Rule
Jul 1, 1998 Jul 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Jul 31, 1998 Surface Water Treatment Rule
Jul 1, 1998 Jul 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Jul 31, 1998 Surface Water Treatment Rule
Jul 1, 1998 Jul 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Jul 31, 1998 Surface Water Treatment Rule
Jun 1, 1998 Jun 30, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Jun 30, 1998 Surface Water Treatment Rule
Jun 1, 1998 Jun 30, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Jun 30, 1998 Surface Water Treatment Rule
Jun 1, 1998 Jun 30, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Jun 30, 1998 Surface Water Treatment Rule
May 1, 1998 May 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived May 31, 1998 Surface Water Treatment Rule
May 1, 1998 May 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived May 31, 1998 Surface Water Treatment Rule
May 1, 1998 May 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived May 31, 1998 Surface Water Treatment Rule
Apr 1, 1998 Apr 30, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 1998 Surface Water Treatment Rule
Apr 1, 1998 Apr 30, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 1998 Surface Water Treatment Rule
Apr 1, 1998 Apr 30, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 1998 Surface Water Treatment Rule
Mar 1, 1998 Mar 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Mar 31, 1998 Surface Water Treatment Rule
Mar 1, 1998 Mar 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Mar 31, 1998 Surface Water Treatment Rule
Mar 1, 1998 Mar 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Mar 31, 1998 Surface Water Treatment Rule
Feb 1, 1998 Feb 28, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Feb 28, 1998 Surface Water Treatment Rule
Feb 1, 1998 Feb 28, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Feb 28, 1998 Surface Water Treatment Rule
Feb 1, 1998 Feb 28, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Feb 28, 1998 Surface Water Treatment Rule
Jan 1, 1998 Jan 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Jan 31, 1998 Surface Water Treatment Rule
Jan 1, 1998 Jan 31, 1998 Surface Water Treatment Rule TT Yes No — — — Archived Jan 31, 1998 Surface Water Treatment Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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