B68/100
OLD AGENCY WATER SYSTEM — Water Quality Report 2026
Serving 1,180 people · South Dakota
Water Source
Purchased Groundwater
County
—
System ID
084690458
Violations
25
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2017.
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 OLD AGENCY WATER SYSTEM
Is OLD AGENCY WATER SYSTEM water safe to drink?
OLD AGENCY WATER SYSTEM water receives a grade of B (68/100), which is considered good. 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 OLD AGENCY WATER SYSTEM detected?
1 contaminants were tested in OLD AGENCY WATER SYSTEM's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does OLD AGENCY WATER SYSTEM have any EPA violations?
Yes, OLD AGENCY WATER SYSTEM has 25 EPA violation(s) on record, with the most recent in 2017. Violation types include MR, MON, MCL. 1 are health-based violations.
How many people does OLD AGENCY WATER SYSTEM serve?
OLD AGENCY WATER SYSTEM serves approximately 1,180 people, South Dakota.
What type of water does OLD AGENCY WATER SYSTEM provide?
OLD AGENCY 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 084690458.
How does OLD AGENCY WATER SYSTEM compare to other utilities in South Dakota?
OLD AGENCY WATER SYSTEM scores 68/100 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.