A83/100
TEA — Water Quality Report 2026
Serving 7,381 people · South Dakota
Water Source
Purchased Groundwater
County
—
System ID
SD4600409
Violations
10
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 2020.
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 TEA
Is TEA water safe to drink?
TEA water receives a grade of A (83/100), 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 TEA detected?
31 contaminants were tested in TEA's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does TEA have any EPA violations?
Yes, TEA has 10 EPA violation(s) on record, with the most recent in 2020. Violation types include MON, MR, Other. 1 are health-based violations.
How many people does TEA serve?
TEA serves approximately 7,381 people, South Dakota. The system provides water to 1 community: Tea.
What type of water does TEA provide?
TEA sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is SD4600409.
How does TEA compare to other utilities in South Dakota?
TEA scores 83/100 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.