B70/100
ROCKWELL WATER SUPPLY — Water Quality Report 2026
Serving 1,071 people · Iowa
Water Source
Groundwater
County
—
System ID
IA1773097
Violations
11
Contaminant Test Results
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
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2023 – June 30, 2024Enforcement: 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 ROCKWELL WATER SUPPLY
Is ROCKWELL WATER SUPPLY water safe to drink?
ROCKWELL WATER SUPPLY water receives a grade of B (70/100), which is considered good. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has ROCKWELL WATER SUPPLY detected?
1 contaminants were tested in ROCKWELL WATER SUPPLY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ROCKWELL WATER SUPPLY have any EPA violations?
Yes, ROCKWELL WATER SUPPLY has 11 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, MCL. 4 are health-based violations.
How many people does ROCKWELL WATER SUPPLY serve?
ROCKWELL WATER SUPPLY serves approximately 1,071 people, Iowa. The system provides water to 1 community: Rockwell.
What type of water does ROCKWELL WATER SUPPLY provide?
ROCKWELL WATER SUPPLY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA1773097.
How does ROCKWELL WATER SUPPLY compare to other utilities in Iowa?
ROCKWELL WATER SUPPLY scores 70/100 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.