Hyattville, WY 82428

1 water system66 residents

Severe water quality issues - filtration essential

F

Score: 18/100

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

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

66

Contaminants Detected

195

Violations on Record

2

Health-Based Violations

0

Recent Violations

Grade Breakdown

Contaminant Count0 / 25
Violation History1 / 25
Contaminant Severity22 / 25
System Compliance0 / 15
Enforcement History0 / 10
Total Score18%

18 / 100 points

Recommended Water Filters

  • Point-of-Use Carbon Filter (NSF-certified for lead)
  • 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.

Hyattville vs WY & National Average

Detected Contaminants

66 contaminants detected across water systems serving this ZIP code

ContaminantCategory
AtrazineAgricultural
Nitrate-NitriteAgricultural
SimazineAgricultural
Antimony, TotalHeavy Metal
ArsenicHeavy Metal
BariumHeavy Metal
Beryllium, TotalHeavy Metal
CadmiumHeavy Metal
ChromiumHeavy Metal
Lead and Copper RuleHeavy Metal
MercuryHeavy Metal
NickelHeavy Metal
SeleniumHeavy Metal
Thallium, TotalHeavy Metal
CYANIDEInorganic
FluorideInorganic
Coliform (TCR)Microorganism
Revised Total Coliform RuleMicroorganism
1,1,1-TrichloroethaneOther
1,1,2-TrichloroethaneOther
1,2-DIBROMO-3-CHLOROPROPANEOther
1,2-DichloropropaneOther
2,4-DOther
2,4,5-TPOther
Benzo(a)pyreneOther
BHC-GAMMAOther
CarbofuranOther
ChlordaneOther
Consumer Confidence RuleOther
DalaponOther
Di(2-ethylhexyl) adipateOther
Di(2-ethylhexyl) phthalateOther
DICHLOROMETHANEOther
DinosebOther
EndrinOther
ETHYLENE DIBROMIDEOther
Groundwater RuleOther
HeptachlorOther
Heptachlor epoxideOther
HexachlorocyclopentadieneOther
LASSOOther
MethoxychlorOther
OXAMYLOther
PentachlorophenolOther
PicloramOther
Total Polychlorinated Biphenyls (PCB)Other
ToxapheneOther
Gross Alpha, Excl. Radon and URadiological
1,1-DichloroethyleneVolatile Organic
1,2-DichloroethaneVolatile Organic
1,2,4-TrichlorobenzeneVolatile Organic
BenzeneVolatile Organic
Carbon tetrachlorideVolatile Organic
CHLOROBENZENEVolatile Organic
cis-1,2-DichloroethyleneVolatile Organic
EthylbenzeneVolatile Organic
HEXACHLOROBENZENEVolatile Organic
o-DichlorobenzeneVolatile Organic
p-DichlorobenzeneVolatile Organic
StyreneVolatile Organic
TetrachloroethyleneVolatile Organic
TolueneVolatile Organic
trans-1,2-DichloroethyleneVolatile Organic
TrichloroethyleneVolatile Organic
Vinyl chlorideVolatile Organic
Xylenes, TotalVolatile Organic

Water System Information

Systems Serving This ZIP:
HYATTVILLE S&I DISTRICT
Population Served:
66
Systems With Violations:
1 of 1
Major Violations:
179
Enforcement Actions:
192

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.