Public water system · HI0000417
ActiveGay & Robinson
At a glance
Gay & Robinson (PWSID HI0000417) is an active community water system in Kauai County, Hawaii. It reports serving 1,271 people through 325 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in June 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,271
Service connections
325
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Gay & Robinson compare with other water systems in Kauai County?
By EPA's size categories, Gay & Robinson is a small system (501 to 3,300 people). Kauai County has 19 active public water systems. Its population served is well below the county average of 4,167 people per system, and accounts for 1.6% of the 79,166 people reported by systems filed under the county. Across Hawaii, the 136 active systems average 11,181 people each. Nationally, the average active community water system reports serving 6,703 people, so Gay & Robinson is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Hawaii has 119 active community water systems, 88% of the state's 136 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 112 Hawaii systems (82%) list groundwater as their primary source.
Who owns and regulates Gay & Robinson?
EPA lists Gay & Robinson as privately owned. The HI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 19 active systems in Kauai County (32%) are also privately owned.
Does Gay & Robinson have drinking water violations?
EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in June 2011. The violations listed here began between April 1986 and June 2011. By type: 4 contaminant level above the legal limit, 4 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 7 as archived and 2 as resolved. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2011-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2006-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2006-04-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2000-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 1996-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1991-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1986-04-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (pre-TCR)code 3000 | No | Archived |
All 9 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Gay & Robinson: frequently asked questions
Who runs Gay & Robinson?
Gay & Robinson (PWSID HI0000417) is a community water system privately owned. It is regulated by the HI state drinking water program.
How many people does Gay & Robinson serve?
Gay & Robinson reports serving 1,271 people through 325 service connections in Kauai County, Hawaii.
Where does Gay & Robinson get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Gay & Robinson have any drinking water violations?
EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in June 2011. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Gay & Robinson's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in June 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the HI state drinking water program.
Where can I find Gay & Robinson's water quality report?
As a community water system, Gay & Robinson must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Kauai County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lihue-Kapaa | Kauai | 34,854 | Community | Surface water |
| Kalaheo-Koloa | Kauai | 12,660 | Community | Groundwater |
| Princeville | Kauai | 6,911 | Community | Groundwater |
| Kekaha-Waimea | Kauai | 5,998 | Community | Groundwater |
| Hanapepe-Eleele | Kauai | 5,592 | Community | Groundwater |
| Kilauea | Kauai | 3,420 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Gay & Robinson, PWSID HI0000417, Hawaii”, https://aquacensus.com/water-systems/hawaii/gay-robinson-hi0000417 (data as of October 1, 2026).