F0/100
GARRETSON — Water Quality Report 2026
Serving 1,228 people · South Dakota
Water Source
Purchased Groundwater
County
—
System ID
SD4600138
Violations
66
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.38 mg/L | 1.30 mg/L | Over Limit |
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 2014.
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 GARRETSON
Is GARRETSON water safe to drink?
GARRETSON water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 66 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has GARRETSON detected?
2 contaminants were tested in GARRETSON's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does GARRETSON have any EPA violations?
Yes, GARRETSON has 66 EPA violation(s) on record, with the most recent in 2014. Violation types include TT, Other, MCL. 54 are health-based violations.
How many people does GARRETSON serve?
GARRETSON serves approximately 1,228 people, South Dakota. The system provides water to 1 community: Garretson.
What type of water does GARRETSON provide?
GARRETSON sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is SD4600138.
How does GARRETSON compare to other utilities in South Dakota?
GARRETSON 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.