B75/100
ROCK VALLEY RURAL WATER DISTRICT — Water Quality Report 2026
Serving 2,230 people · Iowa
Water Source
Groundwater
County
—
System ID
IA8482701
Violations
14
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
No violations in the past 5 years
Full EPA compliance since 2016.
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 ROCK VALLEY RURAL WATER DISTRICT
Is ROCK VALLEY RURAL WATER DISTRICT water safe to drink?
ROCK VALLEY RURAL WATER DISTRICT water receives a grade of B (75/100), 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 ROCK VALLEY RURAL WATER DISTRICT detected?
1 contaminants were tested in ROCK VALLEY RURAL WATER DISTRICT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ROCK VALLEY RURAL WATER DISTRICT have any EPA violations?
Yes, ROCK VALLEY RURAL WATER DISTRICT has 14 EPA violation(s) on record, with the most recent in 2016. Violation types include TT, MR, MCL. 2 are health-based violations.
How many people does ROCK VALLEY RURAL WATER DISTRICT serve?
ROCK VALLEY RURAL WATER DISTRICT serves approximately 2,230 people, Iowa. The system provides water to 1 community: Rock Valley.
What type of water does ROCK VALLEY RURAL WATER DISTRICT provide?
ROCK VALLEY RURAL WATER DISTRICT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA8482701.
How does ROCK VALLEY RURAL WATER DISTRICT compare to other utilities in Iowa?
ROCK VALLEY RURAL WATER DISTRICT scores 75/100 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.