B66/100
SOUTH LINCOLN RURAL WATER SYSTEM — Water Quality Report 2026
Serving 5,250 people · South Dakota
Water Source
Groundwater
County
—
System ID
SD4600870
Violations
31
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
2
Violations (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: October 1, 2023 – October 31, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2021 – December 31, 2021Rule: Stage 1 DBPREnforcement: 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 SOUTH LINCOLN RURAL WATER SYSTEM
Is SOUTH LINCOLN RURAL WATER SYSTEM water safe to drink?
SOUTH LINCOLN RURAL WATER SYSTEM water receives a grade of B (66/100), which is considered good. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has SOUTH LINCOLN RURAL WATER SYSTEM detected?
31 contaminants were tested in SOUTH LINCOLN RURAL WATER SYSTEM's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SOUTH LINCOLN RURAL WATER SYSTEM have any EPA violations?
Yes, SOUTH LINCOLN RURAL WATER SYSTEM has 31 EPA violation(s) on record, with the most recent in 2023. Violation types include MON, MR.
How many people does SOUTH LINCOLN RURAL WATER SYSTEM serve?
SOUTH LINCOLN RURAL WATER SYSTEM serves approximately 5,250 people, South Dakota. The system provides water to 2 communities: Beresford, Worthing.
What type of water does SOUTH LINCOLN RURAL WATER SYSTEM provide?
SOUTH LINCOLN RURAL WATER SYSTEM sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is SD4600870.
How does SOUTH LINCOLN RURAL WATER SYSTEM compare to other utilities in South Dakota?
SOUTH LINCOLN RURAL WATER SYSTEM scores 66/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our South Dakota state page for a full comparison of water systems.