Hamill, SD 57534

1 water system • 4,860 residents

Poor water quality - filtration recommended

Score: 23/100

Graded on EPA violations, contaminants, severity, compliance, and enforcement history. See methodology.

Data updated June 2026 • Sources: EPA ECHO and EPA Envirofacts

Contaminants Detected

147

Violations on Record

Health-Based Violations

Recent Violations

Grade Breakdown

Contaminant Count0 / 25

Violation History7 / 25

Contaminant Severity21 / 25

System Compliance0 / 15

Enforcement History0 / 10

Total Score23%

23 / 100 points

Recommended Water Filters

✓Reverse Osmosis or Ion Exchange Filter
✓Ultraviolet (UV) Purification
✓Whole Home Carbon Filter System

Compare filter types in our Filter Guide →

Consult a water quality specialist for personalized recommendations.

Hamill vs SD & National Average

Detected Contaminants

57 contaminants detected across water systems serving this ZIP code

Contaminant	Category
Atrazine	Agricultural
Glyphosate	Agricultural
Nitrate	Agricultural
Simazine	Agricultural
Coliform (TCR)	Microorganism
1,1,1-Trichloroethane	Other
1,1,2-Trichloroethane	Other
1,2-DIBROMO-3-CHLOROPROPANE	Other
1,2-Dichloropropane	Other
2,4-D	Other
2,4,5-TP	Other
Aldicarb	Other
Aldicarb sulfone	Other
Aldicarb sulfoxide	Other
Benzo(a)pyrene	Other
BHC-GAMMA	Other
Carbofuran	Other
Chlordane	Other
Dalapon	Other
Di(2-ethylhexyl) adipate	Other
Di(2-ethylhexyl) phthalate	Other
DICHLOROMETHANE	Other
Dinoseb	Other
Diquat	Other
Endothall	Other
Endrin	Other
ETHYLENE DIBROMIDE	Other
Heptachlor	Other
Heptachlor epoxide	Other
Hexachlorocyclopentadiene	Other
LASSO	Other
Methoxychlor	Other
OXAMYL	Other
Pentachlorophenol	Other
Picloram	Other
Total Polychlorinated Biphenyls (PCB)	Other
Toxaphene	Other
Combined Radium (-226 and -228)	Radiological
Gross Alpha, Excl. Radon and U	Radiological
1,1-Dichloroethylene	Volatile Organic
1,2-Dichloroethane	Volatile Organic
1,2,4-Trichlorobenzene	Volatile Organic
Benzene	Volatile Organic
Carbon tetrachloride	Volatile Organic
CHLOROBENZENE	Volatile Organic
cis-1,2-Dichloroethylene	Volatile Organic
Ethylbenzene	Volatile Organic
HEXACHLOROBENZENE	Volatile Organic
o-Dichlorobenzene	Volatile Organic
p-Dichlorobenzene	Volatile Organic
Styrene	Volatile Organic
Tetrachloroethylene	Volatile Organic
Toluene	Volatile Organic
trans-1,2-Dichloroethylene	Volatile Organic
Trichloroethylene	Volatile Organic
Vinyl chloride	Volatile Organic
Xylenes, Total	Volatile Organic

Water System Information

Systems Serving This ZIP:: TRIPP COUNTY WATER USER DISTRICT
Population Served:: 4,860
Systems With Violations:: 1 of 1
Major Violations:: 139
Enforcement Actions:: 145

Nearby Areas

57580

Winner • 5.3 mi away

57528

Colome • 11.9 mi away

57529

Dallas • 21 mi away

57533

Gregory • 28.6 mi away

57523

Burke • 32.7 mi away

57544

Kennebec • 33.1 mi away

Frequently Asked Questions

What does the grade mean?

Our A–F grade ranks this ZIP code's water quality against every other analyzed ZIP in the country, based on EPA data. A = among the best, F = among the most troubled.

Is my tap water safe to drink?

Water systems regulated by the EPA must comply with Safe Drinking Water Act standards. However, if you're concerned about water quality, consider a water filter appropriate for your contaminants.

How often is the data updated?

We update our data quarterly with the latest EPA ECHO and Envirofacts data. Historical violations are tracked to identify patterns.

What filters do you recommend?

Filter recommendations are based on detected contaminants in your area. See our Filter Guide for detailed information about different filter types.