B72/100
AURORA — Water Quality Report 2026
Serving 1,200 people · South Dakota
Water Source
Purchased Groundwater
County
—
System ID
SD4600058
Violations
13
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 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 AURORA
Is AURORA water safe to drink?
AURORA water receives a grade of B (72/100), 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 AURORA detected?
1 contaminants were tested in AURORA's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does AURORA have any EPA violations?
Yes, AURORA has 13 EPA violation(s) on record, with the most recent in 2020. Violation types include MON, MR, TT. 3 are health-based violations.
How many people does AURORA serve?
AURORA serves approximately 1,200 people, South Dakota. The system provides water to 1 community: Aurora.
What type of water does AURORA provide?
AURORA sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is SD4600058.
How does AURORA compare to other utilities in South Dakota?
AURORA scores 72/100 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.