← Wilmington, NC

Tap water quality report

ZIP 28401 — Wilmington, NC

EPA monitoring across the 3 water suppliers serving ZIP 28401 in Wilmington, NC detected 36 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

3
water suppliers
395,886
people served
36
contaminants found

What was found in ZIP 28401

The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
930 µg/L 9.3%
of the EPA limit 10000 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
Highest in the ZIP: 1770 µg/L — BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2019
3/3 SYR4
Nitrate-Nitrite
1565.25 µg/L 16%
of the EPA limit 10000 µg/L
Highest in the ZIP: PENDER COUNTY UTILITIES · 32,302 people · 2019
1/3 SYR4
Chlorite
958 µg/L 96%
of the EPA limit 1000 µg/L
Highest in the ZIP: BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2019
1/3 SYR4
Copper
220.8 µg/L 17%
of the EPA limit 1300 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2017
Highest in the ZIP: 788.2 µg/L — PENDER COUNTY UTILITIES · 32,302 people · 2018
3/3 SYR4
Fluoride
740 µg/L 19%
of the EPA limit 4000 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
3/3 SYR4
Lead
128.7 µg/L 858%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
3/3 SYR4
TTHM
105.4 µg/L 132%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
3/3 SYR4
Chloroform
43 µg/L
No EPA limit set
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
38.48 µg/L 64%
of the EPA limit 60 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
3/3 SYR4
Dibromochloromethane
29.2 µg/L
No EPA limit set
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
Highest in the ZIP: 34.11 µg/L — PENDER COUNTY UTILITIES · 32,302 people · 2019
3/3 SYR4
Bromodichloromethane
31.2 µg/L
No EPA limit set
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
3/3 SYR4
Barium
22.6 µg/L 1.1%
of the EPA limit 2000 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
1/3 SYR4
Dichloroacetic Acid
17.45 µg/L
No EPA limit set
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
Highest in the ZIP: 19 µg/L — BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2019
3/3 SYR4
Bromoform
8.51 µg/L
No EPA limit set
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
Highest in the ZIP: 18.3625 µg/L — PENDER COUNTY UTILITIES · 32,302 people · 2019
3/3 SYR4
Trichloroacetic Acid
17.65 µg/L
No EPA limit set
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
3/3 SYR4
Dibromoacetic Acid
7.25 µg/L
No EPA limit set
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
Highest in the ZIP: 11 µg/L — BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2019
3/3 SYR4
Monobromoacetic Acid
2 µg/L
No EPA limit set
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
Highest in the ZIP: 7.75 µg/L — BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2019
3/3 SYR4
Monochloroacetic Acid
4.48 µg/L
No EPA limit set
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
Highest in the ZIP: 7.2 µg/L — PENDER COUNTY UTILITIES · 32,302 people · 2019
3/3 SYR4
Bromate
4.35 µg/L 43%
of the EPA limit 10 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
1/3 SYR4
Di(2-ethylhexyl) Phthalate
2.3 µg/L 38%
of the EPA limit 6 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
1/3 SYR4
Gross Alpha, Excl. Radon And U
1.96 pCi/L 13%
of the EPA limit 15 pCi/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
1/3 SYR4
Arsenic
1.6 µg/L 16%
of the EPA limit 10 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
1/3 SYR4
Combined Radium (-226 And -228)
1.4715 pCi/L 29%
of the EPA limit 5 pCi/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
2/3 SYR4
Dalapon
1.38 µg/L 0.7%
of the EPA limit 200 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
1/3 SYR4
Cadmium
1 µg/L 20%
of the EPA limit 5 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
1/3 SYR4
Thallium, Total
1 µg/L 50%
of the EPA limit 2 µg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2019
1/3 SYR4
PFOS
0.0124 µg/L
No EPA limit set
Highest in the ZIP: BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2024
1/3 UCMR-5
Pfpea
0.0044 µg/L
No EPA limit set
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2024
Highest in the ZIP: 0.0115 µg/L — BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2024
3/3 UCMR-5
Pfhxa
0.0098 µg/L
No EPA limit set
Highest in the ZIP: BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2024
2/3 UCMR-5
Pfba
0.0085 µg/L
No EPA limit set
Highest in the ZIP: BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2024
2/3 UCMR-5
PFOA
0.0077 µg/L
No EPA limit set
Highest in the ZIP: BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2024
1/3 UCMR-5
PFBS
0.0071 µg/L
No EPA limit set
Highest in the ZIP: BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2024
2/3 UCMR-5
Hfpo-Da
0.0058 µg/L
No EPA limit set
Highest in the ZIP: BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2024
1/3 UCMR-5
PFHXS
0.0052 µg/L
No EPA limit set
Highest in the ZIP: BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2024
1/3 UCMR-5
Pfhpa
0.0041 µg/L
No EPA limit set
Highest in the ZIP: BRUNSWICK COUNTY WATER SYSTEM · 151,357 people · 2024
1/3 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: CFPUA-WILMINGTON · 212,227 people · 2028
3/3 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 28401

SupplierStatePopulation served
CFPUA-WILMINGTON NC 212,227
BRUNSWICK COUNTY WATER SYSTEM NC 151,357
PENDER COUNTY UTILITIES NC 32,302

Frequently asked questions about ZIP 28401 tap water

Is the tap water in ZIP 28401 safe to drink?

EPA testing detected 36 contaminants across the water suppliers serving ZIP 28401. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 28401?

3 public water suppliers report EPA drinking-water monitoring for ZIP 28401. Each is listed above with its population served.

What contaminants are in ZIP 28401's water?

EPA monitoring detected Nitrate, Nitrate-Nitrite, Chlorite, Copper, Fluoride, and others across this ZIP's suppliers. The full list with levels and sources is above.