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Tap water quality report

Fort Shafter

EPA monitoring tested this supplier for 112 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

112
contaminants tested
12
detected
7,067
people served
3
health-based violations
Hawaii rankingsLead in HawaiiPFAS in Hawaii
Water source
Ground water
Ownership
Federal government
Counties served
Honolulu

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.

3
health-based violations
13
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2009-01-01 → 2009-01-31
MCL Health-based Resolved 2009-01-01 → 2009-01-31
MCL Health-based Resolved 2009-01-01 → 2009-01-31
MR Monitoring Resolved 2010-04-01 → 2010-04-30
MR Monitoring Resolved 2010-04-01 → 2010-04-30
MR Monitoring Resolved 2010-04-01 → 2010-04-30
MR Monitoring Resolved 2010-03-01 → 2010-03-31
MR Monitoring Resolved 2010-03-01 → 2010-03-31
MR Monitoring Resolved 2010-03-01 → 2010-03-31
MR Monitoring Resolved 2003-01-01

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
460 µg/L 4.6%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2022
Bromoform
9.615 µg/L
No EPA limit set
worst single sample: 10 µg/L
8/8 SYR4 2012–2019
Fluoride
1325 µg/L 33%
of the EPA limit 4000 µg/L
worst single sample: 1500 µg/L
8/8 SYR4 2012–2019
Nitrate-Nitrite
460 µg/L 4.6%
of the EPA limit 10000 µg/L
 8/8 SYR4 2012–2019
TTHM
9.615 µg/L 12%
of the EPA limit 80 µg/L
worst single sample: 10 µg/L
8/8 SYR4 2012–2019
Barium
22.961 µg/L 1.1%
of the EPA limit 2000 µg/L
worst single sample: 23.6 µg/L
3/3 SYR4 2013–2017
Chromium
2.39 µg/L 2.4%
of the EPA limit 100 µg/L
worst single sample: 2.4 µg/L
2/3 SYR4 2013–2017
Dibromoacetic Acid
1.19 µg/L
No EPA limit set
worst single sample: 1.2 µg/L
2/8 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
1.2 µg/L 2%
of the EPA limit 60 µg/L
 2/8 SYR4 2012–2019
Gross Beta Particle Activity
3.4 pCi/L
No EPA limit set
 1/1 SYR4 2016
Monobromoacetic Acid
1.2 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
100 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLeadMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DECAPRIO, KIM
Phone
808-656-3107
Email
[email protected]

Frequently asked questions about Fort Shafter

Is Fort Shafter tap water safe to drink?

EPA monitoring detected 12 contaminants in Fort Shafter'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 Fort Shafter's water?

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

How many people does Fort Shafter serve?

Fort Shafter reports serving 7,067 people in Hawaii, per its EPA record.

Has Fort Shafter had any water quality violations?

The EPA has 13 violations on file for Fort Shafter, of which 3 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.