A85/100
TYNDALL — Water Quality Report 2026
Serving 1,012 people · South Dakota
Water Source
Purchased Surface Water
County
—
System ID
SD4600337
Violations
4
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 1996.
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 TYNDALL
Is TYNDALL water safe to drink?
TYNDALL water receives a grade of A (85/100), which is considered excellent. 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 TYNDALL detected?
1 contaminants were tested in TYNDALL's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does TYNDALL have any EPA violations?
Yes, TYNDALL has 4 EPA violation(s) on record, with the most recent in 1996. Violation types include MCL, MR. 2 are health-based violations.
How many people does TYNDALL serve?
TYNDALL serves approximately 1,012 people, South Dakota. The system provides water to 1 community: Tyndall.
What type of water does TYNDALL provide?
TYNDALL sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is SD4600337.
How does TYNDALL compare to other utilities in South Dakota?
TYNDALL scores 85/100 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.