F0/100
PINE RIDGE WATER SYSTEM — Water Quality Report 2026
Serving 7,482 people · South Dakota
Water Source
Groundwater
County
—
System ID
084690475
Violations
113
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 30, 2023 – October 18, 2023Rule: Ground Water 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 PINE RIDGE WATER SYSTEM
Is PINE RIDGE WATER SYSTEM water safe to drink?
PINE RIDGE WATER SYSTEM water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 113 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has PINE RIDGE WATER SYSTEM detected?
31 contaminants were tested in PINE RIDGE WATER SYSTEM's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does PINE RIDGE WATER SYSTEM have any EPA violations?
Yes, PINE RIDGE WATER SYSTEM has 113 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, MCL, TT. 23 are health-based violations.
How many people does PINE RIDGE WATER SYSTEM serve?
PINE RIDGE WATER SYSTEM serves approximately 7,482 people, South Dakota.
What type of water does PINE RIDGE WATER SYSTEM provide?
PINE RIDGE WATER SYSTEM sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is 084690475.
How does PINE RIDGE WATER SYSTEM compare to other utilities in South Dakota?
PINE RIDGE WATER SYSTEM scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our South Dakota state page for a full comparison of water systems.