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Tap water quality report

Gay & Robinson

EPA monitoring tested this supplier for 82 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

82
contaminants tested
11
detected
1,271
people served
11
health-based violations
Hawaii rankingsLead in HawaiiPFAS in Hawaii
Water source
Ground water
Ownership
Private
Counties served
Kauai

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

11
health-based violations
20
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2011-06-01 → 2011-06-30
MCL Health-based Resolved 2011-06-01 → 2011-06-30
MCL Health-based Resolved 2011-06-01 → 2011-06-30
MCL Health-based Archived 2006-07-01 → 2006-07-31
MCL Health-based Archived 2006-07-01 → 2006-07-31
MCL Health-based Archived 2006-07-01 → 2006-07-31
MCL Health-based Archived 1995-04-01 → 1995-04-30
MCL Health-based Archived 1995-04-01 → 1995-04-30
MCL Health-based Archived 1995-04-01 → 1995-04-30
MCL Health-based Archived 1991-11-01 → 1991-11-30

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
700 µg/L 7%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Bromoform
7.42 µg/L
No EPA limit set
worst single sample: 8.4 µg/L
8/8 SYR4 2012–2019
Fluoride
340 µg/L 8.5%
of the EPA limit 4000 µg/L
 8/8 SYR4 2012–2019
TTHM
7.42 µg/L 9.3%
of the EPA limit 80 µg/L
worst single sample: 8.4 µg/L
8/8 SYR4 2012–2019
Nitrate-Nitrite
694 µg/L 6.9%
of the EPA limit 10000 µg/L
worst single sample: 700 µg/L
7/7 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2021
Copper
77.1 µg/L 5.9%
of the EPA limit 1300 µg/L
worst single sample: 78 µg/L
2/72 SYR4 2013–2019
Chromium
5.6995 µg/L 5.7%
of the EPA limit 100 µg/L
worst single sample: 5.73 µg/L
2/2 SYR4 2016–2019
Gross Beta Particle Activity
3.7 pCi/L
No EPA limit set
 1/1 SYR4 2016
Monobromoacetic Acid
4.2 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
4.2 µg/L 7%
of the EPA limit 60 µg/L
 1/8 SYR4 2012–2019
71 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLeadMercuryMethoxychlorMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GREENE, HOWARD
Phone
808-335-3133
Email
[email protected]

Frequently asked questions about Gay & Robinson

Is Gay & Robinson tap water safe to drink?

EPA monitoring detected 11 contaminants in Gay & Robinson's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Gay & Robinson's water?

EPA monitoring detected Nitrate, Bromoform, Fluoride, TTHM, Nitrate-Nitrite, and others. The full list with the level and data source for each is above.

How many people does Gay & Robinson serve?

Gay & Robinson reports serving 1,271 people in Hawaii, per its EPA record.

Has Gay & Robinson had any water quality violations?

The EPA has 20 violations on file for Gay & Robinson, of which 11 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.