A91/100
Lathrop Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 7,913 residents · Missouri
What's In Lathrop's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Resolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 17, 2024 – April 17, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
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
LATHROP PWS
Population Served
2,945
Water Source
Purchased Surface Water
System ID
MO1010453
CLINTON CO PWSD 4 SYS 1
Population Served
4,968
Water Source
Purchased Surface Water
System ID
MO1024156
Frequently Asked Questions About Lathrop Water
Is Lathrop tap water safe to drink?
Lathrop, Missouri tap water receives a grade of A (91/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 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 Lathrop's water?
Of the 31 contaminants tested in Lathrop'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 Lathrop have any water quality violations?
Yes, Lathrop has 11 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, MR, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Lathrop?
Lathrop 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 Lathrop's tap water come from?
Lathrop's drinking water is sourced from purchased surface water and supplied by LATHROP PWS and 1 other water system(s). The system serves approximately 7,913 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Lathrop'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. Lathrop'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 Lathrop's water compare to other cities in Missouri?
Lathrop's water quality score of 91/100 earns a grade of A, which is considered excellent. This places Lathrop among the better-performing water systems in Missouri. Visit our Missouri state page to see how all cities in the state compare.
What should I do if I'm concerned about Lathrop's water quality?
If you have concerns about Lathrop'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 (LATHROP 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.