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Tap water quality report

Ofu - Olosega Asg

EPA monitoring tested this supplier for 71 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
10
detected
270
people served
17
health-based violations
AS rankingsLead in ASPFAS in AS
Water source
Ground water
Ownership
State government
Counties served
Manu'a District

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.

17
health-based violations
246
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-06-01
MCL Health-based Resolved 2016-01-01 → 2016-01-31
MCL Health-based Resolved 2015-10-01 → 2015-10-31
TT Health-based Resolved 2015-08-31
TT Health-based Resolved 2015-05-31
TT Health-based Resolved 2012-01-19
TT Health-based Resolved 2012-01-01
TT Health-based Resolved 2012-01-01
MCL Health-based Resolved 2010-05-01 → 2010-05-31
MCL Health-based Resolved 2010-03-01 → 2010-03-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.00050 mg/L 3.3%
of the EPA limit 0.0150 mg/L
 29/29 LCR 2022
Nitrate
300 µg/L 3%
of the EPA limit 10000 µg/L
 8/20 SYR4 2013–2017
Barium
14 µg/L 0.7%
of the EPA limit 2000 µg/L
 5/5 SYR4 2013–2015
Chromium
6.1 µg/L 6.1%
of the EPA limit 100 µg/L
 5/5 SYR4 2013–2015
Combined Radium (-226 And -228)
1.9 pCi/L 38%
of the EPA limit 5 pCi/L
 5/7 SYR4 2013–2015
Combined Uranium
2.5777 µg/L 8.6%
of the EPA limit 30 µg/L
 5/6 SYR4 2013–2015
Gross Alpha, Excl. Radon And U
1.73 pCi/L 12%
of the EPA limit 15 pCi/L
 5/8 SYR4 2013–2015
Fluoride
92 µg/L 2.3%
of the EPA limit 4000 µg/L
 4/5 SYR4 2013–2015
Gross Beta Particle Activity
4.73 pCi/L
No EPA limit set
 2/10 SYR4 2013–2015
TTHM
2.8 µg/L 3.5%
of the EPA limit 80 µg/L
 2/4 SYR4 2014–2019
61 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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Katrina Mariner
Phone
6846991234

Frequently asked questions about Ofu - Olosega Asg

Is Ofu - Olosega Asg tap water safe to drink?

EPA monitoring detected 10 contaminants in Ofu - Olosega Asg'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 Ofu - Olosega Asg's water?

EPA monitoring detected Lead, Nitrate, Barium, Chromium, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does Ofu - Olosega Asg serve?

Ofu - Olosega Asg reports serving 270 people in AS, per its EPA record.

Has Ofu - Olosega Asg had any water quality violations?

The EPA has 246 violations on file for Ofu - Olosega Asg, of which 17 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.