Drinking water quality · 2024
· Verified
· PWSID NC0465199
What's in Wilmington, NC tap water
Only 9 of 27 core regulated contaminants were reported for Wilmington, NC. What was measured is clean — but most of the picture is missing.
- !1 contaminant within 20% of a limit
- !9 of 27 core regulated contaminants reported — 18 never appear in this report
- ✓Nothing over a federal limit
- ✓No open federal violations
+How this score is calculated
Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.
- −0 contaminants at or above a federal limit
- −4 contaminants within 20% of a limit
- −0 open health-based violations
- −0 open monitoring / reporting violations
- −6 health-based violations resolved in the last 5 years
- −16 core regulated contaminants never reported (9/27)
A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.
Full grading methodology, constant for constant →What to worry about
- HFPO-DA (GenX chemicals)84% of the federal limit8.4 ng/L · limit 10 ng/L
Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
+36 contaminants were measured and came in below the limitShow all
What this report doesn't tell you
18 of the 27 contaminants a community water system normally reports do not appear anywhere in Wilmington, NC's data. Absent is not the same as absent-from-the-water — it means nobody published a number.
+Full detail: PFAS testing, water source, historical monitoring, and the federal violation record
PFAS — EPA UCMR5 (2023–2025)
1 PFAS compound approaching EPA limits in Wilmington, NC
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
HFPO-DA (GenX chemicals)
● Approaching limit (84%)PFBS
● Detected (no federal limit)Where your water comes from · EPA SDWIS
Wilmington, NC's drinking water comes from ground water, drawn from 12 sources.
Source
- WELL #1_SCHOONER
- WELL #2_ELEVATED TANK
- WELL #3_TILDALHOLM
- WELL #4_ARRONDALE
- + 8 more
Treatment
- TREATMENT_PLT_WELL #1_SCHOONER
- TREATMENT_PLT_WELL #2_ELEVATED TANK
- TREATMENT_PLT_WELL #3_TIDALHOLM
- + 9 more
Distribution
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based9 violations on record · most recent Jan 2020resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗