WAIKOLOA

Hawaii — Community Water System — PWSID: HI0000135

System Information

PWSIDHI0000135
System NameWAIKOLOA
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedSep 10, 1979
Last ReportedMar 17, 2026

Location & Contact

StateHawaii
CityWAIKOLOA
ZIP Code96738
AddressHAWAII WATER SERVICE COMPANY
OrganizationCARRASCO, TONY
Phone808-883-2065

Population & Service

Population Served12,100
Service Connections2,120

Drinking Water Violations (14)

This water system has 14 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
Mar 1, 2010 MR No No Resolved Jun 28, 2010
Mar 1, 2010 MR No No Resolved Jun 28, 2010
Mar 1, 2010 MR No No Resolved Jun 28, 2010
Feb 1, 2010 Feb 28, 2010 MCL Yes No 5% of samples Resolved Feb 28, 2010
Feb 1, 2010 Feb 28, 2010 MCL Yes No 5% of samples Resolved Feb 28, 2010
Feb 1, 2010 Feb 28, 2010 MCL Yes No 5% of samples Resolved Feb 28, 2010
Jan 1, 2000 Jan 31, 2000 MCL Yes No 5% of samples Archived Jan 31, 2000
Jan 1, 2000 Jan 31, 2000 MCL Yes No 5% of samples Archived Jan 31, 2000
Jan 1, 2000 Jan 31, 2000 MCL Yes No 5% of samples Archived Jan 31, 2000
Jan 1, 2000 Jan 31, 2000 MCL Yes No 5% of samples Archived Jan 31, 2000
Jan 1, 2000 Jan 31, 2000 MCL Yes No 5% of samples Archived Jan 31, 2000
Jan 1, 2000 Jan 31, 2000 MCL Yes No 5% of samples Archived Jan 31, 2000
Jul 1, 1993 Dec 31, 1993 MR No No TT Resolved May 1, 1993
Jul 1, 1992 Dec 31, 1992 MR No No TT Resolved Dec 31, 1992

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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