What was found in ZIP 28630
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.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 744.1 µg/L 19% of the EPA limit 4000 µg/L Highest in the ZIP: GRANITE FALLS, TOWN OF · 7,318 people · 2019 | 1/5 | SYR4 |
| Copper | 205 µg/L 16% of the EPA limit 1300 µg/L Main supplier: CALDWELL CO WATER SYSTEM-SE · 15,710 people · 2019
Highest in the ZIP: 274.15 µg/L — GRANITE FALLS, TOWN OF · 7,318 people · 2017 | 5/5 | SYR4 |
| TTHM | 81.755 µg/L 102% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: CALDWELL CO WATER SYSTEM-SE · 15,710 people · 2019
Highest in the ZIP: 100.37 µg/L — GRANITE FALLS, TOWN OF · 7,318 people · 2019 | 5/5 | SYR4 |
| Chloroform | 80.58 µg/L No EPA limit set Main supplier: CALDWELL CO WATER SYSTEM-SE · 15,710 people · 2019
Highest in the ZIP: 87.43 µg/L — GRANITE FALLS, TOWN OF · 7,318 people · 2019 | 5/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 48 µg/L 80% of the EPA limit 60 µg/L Main supplier: CALDWELL CO WATER SYSTEM-SE · 15,710 people · 2019 | 5/5 | SYR4 |
| Trichloroacetic Acid | 27.16 µg/L No EPA limit set Main supplier: CALDWELL CO WATER SYSTEM-SE · 15,710 people · 2019
Highest in the ZIP: 28.71 µg/L — CALDWELL COUNTY WATER--WEST · 8,763 people · 2019 | 5/5 | SYR4 |
| Monobromoacetic Acid | 25 µg/L No EPA limit set Highest in the ZIP: BATON WATER CORPORATION · 7,874 people · 2019 | 1/5 | SYR4 |
| Dichloroacetic Acid | 21.13 µg/L No EPA limit set Main supplier: CALDWELL CO WATER SYSTEM-SE · 15,710 people · 2019
Highest in the ZIP: 24.685 µg/L — BATON WATER CORPORATION · 7,874 people · 2019 | 5/5 | SYR4 |
| Lead | 5 µg/L 33% of the EPA limit 15 µg/L Main supplier: CALDWELL CO WATER SYSTEM-SE · 15,710 people · 2019
Highest in the ZIP: 14.45 µg/L — GRANITE FALLS, TOWN OF · 7,318 people · 2017 | 4/5 | SYR4 |
| Bromodichloromethane | 10.24 µg/L No EPA limit set Main supplier: CALDWELL CO WATER SYSTEM-SE · 15,710 people · 2019
Highest in the ZIP: 11.12 µg/L — SAWMILLS, TOWN OF · 5,524 people · 2019 | 5/5 | SYR4 |
| Dibromochloromethane | 2 µg/L No EPA limit set Main supplier: CALDWELL CO WATER SYSTEM-SE · 15,710 people · 2019
Highest in the ZIP: 3.4 µg/L — GRANITE FALLS, TOWN OF · 7,318 people · 2019 | 5/5 | SYR4 |
| Dibromoacetic Acid | 1.385 µg/L No EPA limit set Main supplier: CALDWELL CO WATER SYSTEM-SE · 15,710 people · 2019
Highest in the ZIP: 1.58 µg/L — BATON WATER CORPORATION · 7,874 people · 2019 | 5/5 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CALDWELL CO WATER SYSTEM-SE · 15,710 people · 2025 | 5/5 | 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 28630
| Supplier | State | Population served |
|---|---|---|
| CALDWELL CO WATER SYSTEM-SE | NC | 15,710 |
| CALDWELL COUNTY WATER--WEST | NC | 8,763 |
| BATON WATER CORPORATION | NC | 7,874 |
| GRANITE FALLS, TOWN OF | NC | 7,318 |
| SAWMILLS, TOWN OF | NC | 5,524 |
Frequently asked questions about ZIP 28630 tap water
Is the tap water in ZIP 28630 safe to drink?
EPA testing detected 13 contaminants across the water suppliers serving ZIP 28630. 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 28630?
5 public water suppliers report EPA drinking-water monitoring for ZIP 28630. Each is listed above with its population served.
What contaminants are in ZIP 28630's water?
EPA monitoring detected Fluoride, Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.