A93/100
BLACK ROCK WATERWORKS — Water Quality Report 2026
Serving 1,034 people · Arkansas
Water Source
Groundwater
County
—
System ID
AR0000302
Violations
4
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.006 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2019.
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 BLACK ROCK WATERWORKS
Is BLACK ROCK WATERWORKS water safe to drink?
BLACK ROCK WATERWORKS water receives a grade of A (93/100), which is considered excellent. 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 BLACK ROCK WATERWORKS detected?
1 contaminants were tested in BLACK ROCK WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does BLACK ROCK WATERWORKS have any EPA violations?
Yes, BLACK ROCK WATERWORKS has 4 EPA violation(s) on record, with the most recent in 2019. Violation types include Other, MR.
How many people does BLACK ROCK WATERWORKS serve?
BLACK ROCK WATERWORKS serves approximately 1,034 people, Arkansas.
What type of water does BLACK ROCK WATERWORKS provide?
BLACK ROCK WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AR0000302.
How does BLACK ROCK WATERWORKS compare to other utilities in Arkansas?
BLACK ROCK WATERWORKS scores 93/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Arkansas state page for a full comparison of water systems.