F0/100
STANDING ROCK RURAL WATER SYSTEM — Water Quality Report 2026
Serving 6,839 people · North Dakota
Water Source
Surface Water
County
—
System ID
084690510
Violations
52
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
3
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 2Unresolved
Violation related to Lead and Copper Rule
TIER 3Unresolved
Surface water treatment technique failure
TIER 3Resolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: April 1, 2023 – April 30, 2023Rule: Surface Water Treatment 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 STANDING ROCK RURAL WATER SYSTEM
Is STANDING ROCK RURAL WATER SYSTEM water safe to drink?
STANDING ROCK RURAL WATER SYSTEM water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 52 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has STANDING ROCK RURAL WATER SYSTEM detected?
31 contaminants were tested in STANDING ROCK RURAL WATER SYSTEM's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does STANDING ROCK RURAL WATER SYSTEM have any EPA violations?
Yes, STANDING ROCK RURAL WATER SYSTEM has 52 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, Other, MR. 18 are health-based violations.
How many people does STANDING ROCK RURAL WATER SYSTEM serve?
STANDING ROCK RURAL WATER SYSTEM serves approximately 6,839 people, North Dakota.
What type of water does STANDING ROCK RURAL WATER SYSTEM provide?
STANDING ROCK RURAL WATER SYSTEM sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is 084690510.
How does STANDING ROCK RURAL WATER SYSTEM compare to other utilities in North Dakota?
STANDING ROCK RURAL WATER SYSTEM scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our North Dakota state page for a full comparison of water systems.