C51/100
Merriam Woods Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 1,839 residents · Missouri
What's In Merriam Woods's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.005 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – December 19, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2022 – November 30, 2022Enforcement: 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
MERRIAM WOODS PWS
Population Served
1,839
Water Source
Groundwater
System ID
MO5036152
Frequently Asked Questions About Merriam Woods Water
Is Merriam Woods tap water safe to drink?
Merriam Woods, Missouri tap water receives a grade of C (51/100), which is considered fair. 0 contaminant(s) exceed EPA maximum contaminant levels and 46 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Merriam Woods's water?
Of the 1 contaminants tested in Merriam Woods's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Merriam Woods have any water quality violations?
Yes, Merriam Woods has 46 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR. None of these are classified as health-based violations.
Do I need a water filter in Merriam Woods?
Merriam Woods water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Merriam Woods's tap water come from?
Merriam Woods's drinking water is sourced from groundwater and supplied by MERRIAM WOODS PWS. The system serves approximately 1,839 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Merriam Woods'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. Merriam Woods'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 Merriam Woods's water compare to other cities in Missouri?
Merriam Woods's water quality score of 51/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Missouri state page to see how all cities in the state compare.
What should I do if I'm concerned about Merriam Woods's water quality?
If you have concerns about Merriam Woods'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 (MERRIAM WOODS 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.