A94/100
KINGBROOK I RURAL WATER SYSTEM — Water Quality Report 2026
Serving 6,455 people · South Dakota
Water Source
Purchased Groundwater
County
—
System ID
SD4600431
Violations
3
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
No violations in the past 5 years
Full EPA compliance since 1992.
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 KINGBROOK I RURAL WATER SYSTEM
Is KINGBROOK I RURAL WATER SYSTEM water safe to drink?
KINGBROOK I RURAL WATER SYSTEM water receives a grade of A (94/100), which is considered excellent. 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 KINGBROOK I RURAL WATER SYSTEM detected?
31 contaminants were tested in KINGBROOK I RURAL WATER SYSTEM's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does KINGBROOK I RURAL WATER SYSTEM have any EPA violations?
Yes, KINGBROOK I RURAL WATER SYSTEM has 3 EPA violation(s) on record, with the most recent in 1992. Violation types include MR.
How many people does KINGBROOK I RURAL WATER SYSTEM serve?
KINGBROOK I RURAL WATER SYSTEM serves approximately 6,455 people, South Dakota. The system provides water to 1 community: Arlington.
What type of water does KINGBROOK I RURAL WATER SYSTEM provide?
KINGBROOK I RURAL WATER SYSTEM sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is SD4600431.
How does KINGBROOK I RURAL WATER SYSTEM compare to other utilities in South Dakota?
KINGBROOK I RURAL WATER SYSTEM scores 94/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our South Dakota state page for a full comparison of water systems.