What was found in ZIP 29203
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 | 654 µg/L 16% of the EPA limit 4000 µg/L Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Nitrate | 461 µg/L 4.6% of the EPA limit 10000 µg/L Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Barium | 240 µg/L 12% of the EPA limit 2000 µg/L Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Copper | 96.2 µg/L 7.4% of the EPA limit 1300 µg/L Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2017 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 53.8685 µg/L 90% of the EPA limit 60 µg/L Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| TTHM | 46.152 µg/L 58% of the EPA limit 80 µg/L Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 33.1375 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Chloroform | 28.875 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 22.2168 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 20.8815 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Bromoform | 16.4185 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 11.576 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 11.17 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 7.95 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Lead | 7.44 µg/L 50% of the EPA limit 15 µg/L Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2017 | 1/1 | SYR4 |
| Monobromoacetic Acid | 6.0805 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2019 | 1/1 | SYR4 |
| Hfpo-Da | 0.0092 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2025 | 1/1 | UCMR-5 |
| PFOS | 0.0086 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0069 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0068 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0057 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0052 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0050 mg/L 33% of the EPA limit 0.0150 mg/L Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2023 | 1/1 | LCR |
| Pfhpa | 0.0030 µg/L No EPA limit set Main supplier: COLUMBIA CITY OF (SC4010001) · 354,068 people · 2025 | 1/1 | 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.
Water suppliers serving ZIP 29203
| Supplier | State | Population served |
|---|---|---|
| COLUMBIA CITY OF (SC4010001) | SC | 354,068 |
Frequently asked questions about ZIP 29203 tap water
Is the tap water in ZIP 29203 safe to drink?
EPA testing detected 24 contaminants across the water suppliers serving ZIP 29203. 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 29203?
1 public water supplier report EPA drinking-water monitoring for ZIP 29203. Each is listed above with its population served.
What contaminants are in ZIP 29203's water?
EPA monitoring detected Fluoride, Nitrate, Barium, Copper, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.