Water Quality: Maryville, MO
2 water systems • 17,203 people served
Multiple Health ViolationsWater Quality Summary
Maryville is served by 2 public water systems with a combined service population of 17,203 people, and has 31 EPA Safe Drinking Water Act violations on record. Critically, 10 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Maryville's violation count is 19% below the national average for Missouri. Contaminants associated with violations include Bromate, Chlorine Dioxide, Contaminant 1009, Gross Alpha.
Contaminants Found
Probable human carcinogen that increases the risk of kidney and thyroid cancers.
Common source: Ozonation of bromide-containing water; used as flour improver
EPA limit: 0.010 mg/L (10 ppb)
Can cause anemia in infants and young children; may cause nervous system effects at high levels.
Common source: Water treatment disinfectant used to control taste, odor, and microorganisms
EPA limit: 0.8 mg/L
Alpha-emitting radioactive particles increase cancer risk, particularly from bone and other internal cancers.
Common source: Natural uranium and radium in geological formations
EPA limit: 15 pCi/L (excluding radon and uranium)
Water Systems Serving Maryville
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| MARYVILLE PWS | MO1010508 | Surface Water | 10,775 | 30 |
| NODAWAY COUNTY PWSD 1 | MO1024428 | Surface Water | 6,428 | 1 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Missouri
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.