A99/100
SOUTHWEST WATER AUTHORITY — Water Quality Report 2026
Serving 8,537 people · North Dakota
Water Source
Surface Water
County
—
System ID
ND4501434
Violations
1
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1995.
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 SOUTHWEST WATER AUTHORITY
Is SOUTHWEST WATER AUTHORITY water safe to drink?
SOUTHWEST WATER AUTHORITY water receives a grade of A (99/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has SOUTHWEST WATER AUTHORITY detected?
31 contaminants were tested in SOUTHWEST WATER AUTHORITY's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does SOUTHWEST WATER AUTHORITY have any EPA violations?
Yes, SOUTHWEST WATER AUTHORITY has 1 EPA violation(s) on record, with the most recent in 1995. Violation types include MR.
How many people does SOUTHWEST WATER AUTHORITY serve?
SOUTHWEST WATER AUTHORITY serves approximately 8,537 people, North Dakota. The system provides water to 1 community: Dickinson.
What type of water does SOUTHWEST WATER AUTHORITY provide?
SOUTHWEST WATER AUTHORITY sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is ND4501434.
How does SOUTHWEST WATER AUTHORITY compare to other utilities in North Dakota?
SOUTHWEST WATER AUTHORITY scores 99/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our North Dakota state page for a full comparison of water systems.