B74/100
Ste Genevieve Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 10,004 residents · Missouri
What's In Ste Genevieve's Tap Water?
32
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.94 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
6
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 2Resolved
Failed treatment technique requirements
When: July 1, 2025 – July 31, 2025Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2025 – July 31, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Violation related to Consumer Confidence Report
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: November 1, 2024 – November 30, 2024Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – November 9, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2022 – November 9, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2021 – November 24, 2023Enforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
STE GENEVIEVE PWS
Population Served
4,999
Water Source
Groundwater
System ID
MO4010710
STE GENEVIEVE COUNTY PWSD 1 SC
Population Served
3,718
Water Source
Groundwater
System ID
MO4024543
STE GENEVIEVE COUNTY PWSD 1 NORTH
Population Served
1,287
Water Source
Groundwater
System ID
MO4024544
Frequently Asked Questions About Ste Genevieve Water
Is Ste Genevieve tap water safe to drink?
Ste Genevieve, Missouri tap water receives a grade of B (74/100), which is considered good. Out of 32 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 2 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Ste Genevieve's water?
Of the 32 contaminants tested in Ste Genevieve's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Ste Genevieve have any water quality violations?
Yes, Ste Genevieve has 27 EPA violation(s) on record, with the most recent in 2025. Violation types include TT, MON, MR. 9 of these are health-based violations, which are the most serious category.
Do I need a water filter in Ste Genevieve?
Based on EPA data, using a water filter in Ste Genevieve is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Ste Genevieve's tap water come from?
Ste Genevieve's drinking water is sourced from groundwater and supplied by STE GENEVIEVE PWS and 2 other water system(s). The system serves approximately 10,004 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Ste Genevieve's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Ste Genevieve's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Ste Genevieve's water compare to other cities in Missouri?
Ste Genevieve's water quality score of 74/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Missouri state page to see how all cities in the state compare.
What should I do if I'm concerned about Ste Genevieve's water quality?
If you have concerns about Ste Genevieve's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (STE GENEVIEVE PWS) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.