What was found in Clayton's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 5600 µg/L 56% of the EPA limit 10000 µg/L Highest in the city: SOUTHFORT S/D · 125 people · 2019 | 10/21 | SYR4 |
| Nitrate-Nitrite | 5035 µg/L 50% of the EPA limit 10000 µg/L Highest in the city: DUTCHESS DOWNS MH S/D · 185 people · 2019 | 10/21 | SYR4 |
| Copper | 121.05 µg/L 9.3% of the EPA limit 1300 µg/L Main supplier: CLAYTON, TOWN OF · 30,876 people · 2017
Highest in the city: 2627.65 µg/L — SHADOW LAKES S/D · 99 people · 2017 | 14/21 | SYR4 |
| Fluoride | 1295 µg/L 32% of the EPA limit 4000 µg/L Highest in the city: DEERFIELD S/D · 120 people · 2017 | 7/21 | SYR4 |
| Lead | 25.85 µg/L 172% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: CLAYTON, TOWN OF · 30,876 people · 2017
Highest in the city: 102.795 µg/L — DUTCHESS DOWNS MH S/D · 185 people · 2018 | 6/21 | SYR4 |
| TTHM | 70.1 µg/L 88% of the EPA limit 80 µg/L Main supplier: CLAYTON, TOWN OF · 30,876 people · 2019
Highest in the city: 93.7 µg/L — TOWN OF CLAYTON - NORTH · 4,703 people · 2019 | 15/21 | SYR4 |
| Chloroform | 41.61 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2019
Highest in the city: 72 µg/L — NEUSE COLONY S/D SECTION B · 190 people · 2019 | 11/21 | SYR4 |
| Total Haloacetic Acids (HAA5) | 51.075 µg/L 85% of the EPA limit 60 µg/L Main supplier: CLAYTON, TOWN OF · 30,876 people · 2019 | 12/21 | SYR4 |
| Combined Uranium | 28.906 µg/L 96% of the EPA limit 30 µg/L Highest in the city: SOUTHHILLS SOUTHWOODS SD · 716 people · 2019 | 2/21 | SYR4 |
| Dichloroacetic Acid | 26.085 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2019
Highest in the city: 27.8 µg/L — WINSTON POINTE S/D · 1,326 people · 2019 | 12/21 | SYR4 |
| Bromodichloromethane | 14.7 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2019
Highest in the city: 21.87 µg/L — TOWN OF CLAYTON - NORTH · 4,703 people · 2019 | 11/21 | SYR4 |
| Trichloroacetic Acid | 16.425 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2019
Highest in the city: 19.745 µg/L — WINSTON POINTE S/D · 1,326 people · 2019 | 11/21 | SYR4 |
| Gross Beta Particle Activity | 12.975 pCi/L No EPA limit set Highest in the city: OLE MILL STREAM S/D · 325 people · 2019 | 8/21 | SYR4 |
| Toluene | 10.86 µg/L 1.1% of the EPA limit 1000 µg/L Highest in the city: NEUSE COLONY S/D SECTION B · 190 people · 2019 | 1/21 | SYR4 |
| Dibromochloromethane | 4 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2019
Highest in the city: 8.035 µg/L — TOWN OF CLAYTON - NORTH · 4,703 people · 2019 | 12/21 | SYR4 |
| Monochloroacetic Acid | 3.89 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2019
Highest in the city: 6.6 µg/L — NEUSE COLONY S/D SECTION B · 190 people · 2019 | 6/21 | SYR4 |
| Combined Radium (-226 And -228) | 5.625 pCi/L 113% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Highest in the city: OLE MILL STREAM S/D · 325 people · 2016 | 7/21 | SYR4 |
| Xylenes, Total | 5.285 µg/L 0.1% of the EPA limit 10000 µg/L Highest in the city: NEUSE COLONY S/D SECTION B · 190 people · 2019 | 2/21 | SYR4 |
| Dibromoacetic Acid | 1.505 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2019
Highest in the city: 5.125 µg/L — FLOWERS PLANTATION · 11,643 people · 2019 | 8/21 | SYR4 |
| Bromoform | 3.3 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2019 | 5/21 | SYR4 |
| Monobromoacetic Acid | 2.1 µg/L No EPA limit set Highest in the city: FLOWERS PLANTATION · 11,643 people · 2019 | 2/21 | SYR4 |
| Ethylbenzene | 0.6600 µg/L 0.1% of the EPA limit 700 µg/L Highest in the city: NEUSE COLONY S/D SECTION B · 190 people · 2019 | 2/21 | SYR4 |
| Ethylene Dibromide | 0.0110 µg/L 22% of the EPA limit 0.0500 µg/L Highest in the city: DUTCHESS DOWNS MH S/D · 185 people · 2019 | 1/21 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CLAYTON, TOWN OF · 30,876 people · 2025
Highest in the city: 0.0109 mg/L — OLE MILL STREAM S/D · 325 people · 2025 | 21/21 | LCR |
| PFOS | 0.0081 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2024
Highest in the city: 0.0095 µg/L — FLOWERS PLANTATION · 11,643 people · 2025 | 3/21 | UCMR-5 |
| Pfhxa | 0.0059 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2024
Highest in the city: 0.0088 µg/L — FLOWERS PLANTATION · 11,643 people · 2025 | 3/21 | UCMR-5 |
| PFOA | 0.0082 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2024 | 3/21 | UCMR-5 |
| Pfpea | 0.0064 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2024
Highest in the city: 0.0068 µg/L — SOUTHGATE S/D · 160 people · 2025 | 3/21 | UCMR-5 |
| Pfba | 0.0067 µg/L No EPA limit set Highest in the city: FLOWERS PLANTATION · 11,643 people · 2025 | 2/21 | UCMR-5 |
| PFBS | 0.0040 µg/L No EPA limit set Main supplier: CLAYTON, TOWN OF · 30,876 people · 2024
Highest in the city: 0.0048 µg/L — FLOWERS PLANTATION · 11,643 people · 2025 | 3/21 | UCMR-5 |
| PFHXS | 0.0036 µg/L No EPA limit set Highest in the city: FLOWERS PLANTATION · 11,643 people · 2025 | 1/21 | UCMR-5 |
| Pfhpa | 0.0031 µg/L No EPA limit set Highest in the city: FLOWERS PLANTATION · 11,643 people · 2025 | 1/21 | UCMR-5 |
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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Clayton
| Supplier | Population served |
|---|---|
| CLAYTON, TOWN OF | 30,876 |
| FLOWERS PLANTATION | 11,643 |
| TOWN OF CLAYTON - NORTH | 4,703 |
| WINSTON POINTE S/D | 1,326 |
| SOUTHHILLS SOUTHWOODS SD | 716 |
| RIVERWOOD S/D | 553 |
| WHITE OAK PLANTATION | 521 |
| CREEKSTONE S/D | 505 |
| WILLOWBROOK DEVELOPMENT | 432 |
| SOUTH PLANTATION S/D | 357 |
| OLE MILL STREAM S/D | 325 |
| STEPHANIE WOODS S/D | 245 |
| WINSTON PLANTATION | 229 |
| NEUSE COLONY S/D SECTION B | 190 |
| DUTCHESS DOWNS MH S/D | 185 |
| SOUTHGATE S/D | 160 |
| SOUTHFORT S/D | 125 |
| DEERFIELD S/D | 120 |
| HEATHER DOWNS MH S/D | 112 |
| SHADOW LAKES S/D | 99 |
| ALBANY ACRES S/D | 81 |
Frequently asked questions about Clayton tap water
Is Clayton tap water safe to drink?
EPA testing detected 32 contaminants in the water serving Clayton. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Clayton?
21 public water suppliers report drinking-water monitoring for Clayton, North Carolina to the EPA. Each is listed above with its population served.
What contaminants are in Clayton's water?
The contaminants EPA monitoring detected in Clayton include Nitrate, Nitrate-Nitrite, Copper, Fluoride, Lead. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.