F7/100
NAVAL SUPPORT ACTIVITY PORTSMOUTH — Water Quality Report 2026
Serving 17,000 people · Virginia
Water Source
Purchased Surface Water
County
—
System ID
VA3740500
Violations
19
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 260.00 µg/L | — | Above Goal |
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 2013.
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 NAVAL SUPPORT ACTIVITY PORTSMOUTH
Is NAVAL SUPPORT ACTIVITY PORTSMOUTH water safe to drink?
NAVAL SUPPORT ACTIVITY PORTSMOUTH water receives a grade of F (7/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 19 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has NAVAL SUPPORT ACTIVITY PORTSMOUTH detected?
69 contaminants were tested in NAVAL SUPPORT ACTIVITY PORTSMOUTH's water. Notable contaminants include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does NAVAL SUPPORT ACTIVITY PORTSMOUTH have any EPA violations?
Yes, NAVAL SUPPORT ACTIVITY PORTSMOUTH has 19 EPA violation(s) on record, with the most recent in 2013. Violation types include MCL, MR. 17 are health-based violations.
How many people does NAVAL SUPPORT ACTIVITY PORTSMOUTH serve?
NAVAL SUPPORT ACTIVITY PORTSMOUTH serves approximately 17,000 people, Virginia. The system provides water to 1 community: Portsmouth City.
What type of water does NAVAL SUPPORT ACTIVITY PORTSMOUTH provide?
NAVAL SUPPORT ACTIVITY PORTSMOUTH 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 VA3740500.
How does NAVAL SUPPORT ACTIVITY PORTSMOUTH compare to other utilities in Virginia?
NAVAL SUPPORT ACTIVITY PORTSMOUTH scores 7/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Virginia state page for a full comparison of water systems.