A83/100
MAMMOTH SPRING WATERWORKS — Water Quality Report 2026
Serving 1,777 people · Arkansas
Water Source
Groundwater
County
—
System ID
AR0000206
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
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: May 1, 2022 – August 15, 2022Rule: Total Coliform 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 MAMMOTH SPRING WATERWORKS
Is MAMMOTH SPRING WATERWORKS water safe to drink?
MAMMOTH SPRING WATERWORKS water receives a grade of A (83/100), 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 MAMMOTH SPRING WATERWORKS detected?
1 contaminants were tested in MAMMOTH SPRING WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MAMMOTH SPRING WATERWORKS have any EPA violations?
Yes, MAMMOTH SPRING WATERWORKS has 14 EPA violation(s) on record, with the most recent in 2022. Violation types include RPT, MR, Other.
How many people does MAMMOTH SPRING WATERWORKS serve?
MAMMOTH SPRING WATERWORKS serves approximately 1,777 people, Arkansas.
What type of water does MAMMOTH SPRING WATERWORKS provide?
MAMMOTH SPRING WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AR0000206.
How does MAMMOTH SPRING WATERWORKS compare to other utilities in Arkansas?
MAMMOTH SPRING WATERWORKS scores 83/100 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.