Water system

Central ASG

Name: Central ASG drinking water quality
Creator: TapWaterZip
License: https://www.usa.gov/government-works

American Samoa EPA ID AS9711948 45,315 people Surface water

What this means for you

Is it safe to drink right now?: Based on the latest EPA data, Central ASG has no unresolved health-based violations from the past year. Water that meets federal standards is generally considered safe to drink for most healthy people.
Should I use a filter?: It's worth considering. Central ASG has a D because of its violation record over the past 5 years (10 health-based), even though nothing is flagged as unresolved in the last year. A filter matched to the contaminants in its violation history is a reasonable precaution.
What kind of filter?: See matched standards and product picks.

This is general information from public EPA data, not medical advice. Lead often comes from a home’s own pipes, so only a test of your tap can tell your exposure. If you are pregnant, caring for an infant, or have a weakened immune system, ask your doctor or health department.

Summary: 10 health-based violations in the last 5 years; 450 monitoring/reporting violations; 5 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Latest lead 90th percentile on file is from 2019 (older than 5 years, not graded).

EPA data snapshot 2026Q3. Grade is TapWaterZip's own score — see methods.

PFAS (“forever chemicals”), EPA UCMR 5

Chemical	Highest location average	Highest single sample	Federal limit	Detections/samples
PFBS	1.6 ppt	3.2 ppt	none	2/83

5 PFAS tested and not detected

PFOS, PFOA, PFNA, PFHxS, HFPO-DA (83 samples each, below EPA minimum reporting levels).

Hazard Index (PFHxS, PFNA, GenX, PFBS): 0 (limit 1.0, proposed for repeal).

Averages are per sampling location across UCMR 5 samples (non-detects counted as 0), approximating the rule’s running annual average. Not an official compliance determination; PFOA/PFOS MCL compliance begins April 26, 2029.

Lithium (also tested in UCMR 5, not a PFAS; no federal limit): highest location average 8.7 ppb.

Lead and copper

Lead 90th percentile1,200 ppb2019-12-31

Current action level15 ppbLCRI lowers to 10 ppb on Nov 1, 2027

This lead result is more than 5 years old, so it is not counted in the grade. Ask your utility for its latest lead sampling.

Violations (last 5 years)

Began	Type	Contaminant / rule	Status
2026-04-01	Missed or late testing/reporting	1,1,2-Trichloroethane	Archived
2026-04-01	Missed or late testing/reporting	Nitrite	Archived
2026-04-01	Missed or late testing/reporting	Gross Beta Particle Activity	Archived
2026-04-01	Missed or late testing/reporting	Tetrachloroethylene	Archived
2026-04-01	Missed or late testing/reporting	1,2-Dichloropropane	Archived
2026-04-01	Missed or late testing/reporting	Benzene	Archived
2026-04-01	Missed or late testing/reporting	Dalapon	Archived
2026-04-01	Missed or late testing/reporting	2,3,7,8-TCDD	Archived
2026-04-01	Missed or late testing/reporting	Toxaphene	Archived
2026-04-01	Missed or late testing/reporting	p-Dichlorobenzene	Archived
2026-04-01	Missed or late testing/reporting	1,1-Dichloroethylene	Archived
2026-04-01	Missed or late testing/reporting	Xylenes, Total	Archived
2026-04-01	Missed or late testing/reporting	Combined Radium (-226 and -228)	Archived
2026-04-01	Missed or late testing/reporting	Glyphosate	Archived
2026-04-01	Missed or late testing/reporting	Heptachlor epoxide	Archived
2026-04-01	Missed or late testing/reporting	1,2-Dichloroethane	Archived
2026-04-01	Missed or late testing/reporting	Toluene	Archived
2026-04-01	Missed or late testing/reporting	Ethylbenzene	Archived
2026-04-01	Missed or late testing/reporting	o-Dichlorobenzene	Archived
2026-04-01	Missed or late testing/reporting	BHC-GAMMA	Archived
2026-04-01	Missed or late testing/reporting	Dinoseb	Archived
2026-04-01	Missed or late testing/reporting	Pentachlorophenol	Archived
2026-04-01	Missed or late testing/reporting	DICHLOROMETHANE	Archived
2026-04-01	Missed or late testing/reporting	Endothall	Archived
2026-04-01	Missed or late testing/reporting	Benzo(a)pyrene	Archived

Filters matched to this water

FILTER PICKS

Look for filters certified (NSF, IAPMO or WQA) to these standards for the specific contaminant. Buttons open the maker’s page or an Amazon search; use “Check NSF listing” to verify a model’s claims. No affiliate links yet — grades are never sold.