B69/100
LONE TREE MUNI WATER SYSTEM — Water Quality Report 2026
Serving 1,357 people · Iowa
Water Source
Groundwater
County
—
System ID
IA5240095
Violations
16
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.90 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
4
Violations (last 5yr)
3
Unresolved
0
Health-Related
TIER 3Unresolved
Other Violation
When: January 1, 2025Rule: Total Coliform RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: August 1, 2024 – August 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: August 1, 2024 – August 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 1, 2021 – March 24, 2022Rule: Ground Water RuleEnforcement: 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
Frequently Asked Questions About LONE TREE MUNI WATER SYSTEM
Is LONE TREE MUNI WATER SYSTEM water safe to drink?
LONE TREE MUNI WATER SYSTEM water receives a grade of B (69/100), which is considered good. Out of 9 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has LONE TREE MUNI WATER SYSTEM detected?
9 contaminants were tested in LONE TREE MUNI WATER SYSTEM's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does LONE TREE MUNI WATER SYSTEM have any EPA violations?
Yes, LONE TREE MUNI WATER SYSTEM has 16 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, MCL. 1 are health-based violations.
How many people does LONE TREE MUNI WATER SYSTEM serve?
LONE TREE MUNI WATER SYSTEM serves approximately 1,357 people, Iowa. The system provides water to 1 community: Lone Tree.
What type of water does LONE TREE MUNI WATER SYSTEM provide?
LONE TREE MUNI WATER SYSTEM sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA5240095.
How does LONE TREE MUNI WATER SYSTEM compare to other utilities in Iowa?
LONE TREE MUNI WATER SYSTEM scores 69/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Iowa state page for a full comparison of water systems.