LIHUE-KAPAA
Hawaii — Community Water System — PWSID: HI0000400
System Information
| PWSID | HI0000400 |
| System Name | LIHUE-KAPAA |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | May 7, 2007 |
| Last Reported | Dec 8, 2025 |
Location & Contact
| State | Hawaii |
| City | LIHUE |
| ZIP Code | 96766-5706 |
| Address | KAUAI DEPT. OF WATER |
| Organization | KNOFF, MARK |
| Phone | 808-245-5403 |
Population & Service
| Population Served | 34,854 |
| Service Connections | 11,482 |
Drinking Water Violations (19)
This water system has 19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2018 | Apr 30, 2018 | E. COLI | MR | No | Yes | — | — | — | Resolved | Apr 30, 2018 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Apr 1, 2018 | Apr 30, 2018 | Cryptosporidium | MR | No | Yes | — | — | — | Resolved | Apr 30, 2018 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Apr 1, 2018 | Apr 30, 2018 | Cryptosporidium | MR | No | Yes | — | — | — | Resolved | Apr 30, 2018 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Apr 1, 2018 | Apr 30, 2018 | Cryptosporidium | MR | No | Yes | — | — | — | Resolved | Apr 30, 2018 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Apr 1, 2018 | Apr 30, 2018 | Turbidity | MR | No | Yes | — | TT | — | Resolved | Apr 30, 2018 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Apr 1, 2018 | Apr 30, 2018 | Turbidity | MR | No | Yes | — | TT | — | Resolved | Apr 30, 2018 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Apr 1, 2018 | Apr 30, 2018 | Turbidity | MR | No | Yes | — | TT | — | Resolved | Apr 30, 2018 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Apr 1, 2018 | Apr 30, 2018 | E. COLI | MR | No | Yes | — | — | — | Resolved | Apr 30, 2018 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Apr 1, 2018 | Apr 30, 2018 | E. COLI | MR | No | Yes | — | — | — | Resolved | Apr 30, 2018 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Jan 1, 2004 | Dec 31, 2007 | Gross Alpha, Excl. Radon and U | MR | No | Yes | — | 15 pCi/L | — | Resolved | Dec 31, 2007 | Radionuclides and Revised Rad Rule |
| Jan 1, 2004 | Dec 31, 2007 | Radium-228 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2007 | Radionuclides and Revised Rad Rule |
| Jan 1, 2004 | Dec 31, 2007 | Radium-226 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2007 | Radionuclides and Revised Rad Rule |
| Jan 1, 2004 | Dec 31, 2007 | Gross Alpha, Excl. Radon and U | MR | No | Yes | — | 15 pCi/L | — | Resolved | Dec 31, 2007 | Radionuclides and Revised Rad Rule |
| Jan 1, 2004 | Dec 31, 2007 | Radium-228 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2007 | Radionuclides and Revised Rad Rule |
| Jan 1, 2004 | Dec 31, 2007 | Radium-228 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2007 | Radionuclides and Revised Rad Rule |
| Jan 1, 2004 | Dec 31, 2007 | Radium-226 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2007 | Radionuclides and Revised Rad Rule |
| Jan 1, 2004 | Dec 31, 2007 | Radium-226 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2007 | Radionuclides and Revised Rad Rule |
| Jan 1, 2004 | Dec 31, 2007 | Gross Alpha, Excl. Radon and U | MR | No | Yes | — | 15 pCi/L | — | Resolved | Dec 31, 2007 | Radionuclides and Revised Rad Rule |
| Jan 1, 2000 | Dec 8, 2003 | Gross Alpha, Excl. Radon and U | MR | No | Yes | — | 15 pCi/L | — | Archived | Dec 8, 2003 | Radionuclides and Revised Rad 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.