A94/100
MARIANNA WATERWORKS — Water Quality Report 2026
Serving 3,238 people · Arkansas
Water Source
Groundwater
County
—
System ID
AR0000310
Violations
0
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.52 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
This system has a clean compliance history.
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 MARIANNA WATERWORKS
Is MARIANNA WATERWORKS water safe to drink?
MARIANNA WATERWORKS water receives a grade of A (94/100), which is considered excellent. Out of 39 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has MARIANNA WATERWORKS detected?
39 contaminants were tested in MARIANNA WATERWORKS's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does MARIANNA WATERWORKS have any EPA violations?
No, MARIANNA WATERWORKS has zero EPA violations on record. This indicates consistent compliance with federal drinking water standards.
How many people does MARIANNA WATERWORKS serve?
MARIANNA WATERWORKS serves approximately 3,238 people, Arkansas.
What type of water does MARIANNA WATERWORKS provide?
MARIANNA WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AR0000310.
How does MARIANNA WATERWORKS compare to other utilities in Arkansas?
MARIANNA WATERWORKS scores 94/100 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.