What was found in ZIP 29170
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 | 1180 µg/L 30% of the EPA limit 4000 µg/L Highest in the ZIP: WEST COLUMBIA CITY OF (SC3210004) · 34,028 people · 2019 | 2/3 | SYR4 |
| Nitrate | 500 µg/L 5% of the EPA limit 10000 µg/L Highest in the ZIP: CAYCE CITY OF (SC3210003) · 17,460 people · 2019 | 2/3 | SYR4 |
| TTHM | 65.734 µg/L 82% of the EPA limit 80 µg/L Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019
Highest in the ZIP: 84.21 µg/L — WEST COLUMBIA CITY OF (SC3210004) · 34,028 people · 2019 | 3/3 | SYR4 |
| Copper | 74 µg/L 5.7% of the EPA limit 1300 µg/L Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 65.07 µg/L 108% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019 | 3/3 | SYR4 |
| Barium | 60 µg/L 3% of the EPA limit 2000 µg/L Highest in the ZIP: CAYCE CITY OF (SC3210003) · 17,460 people · 2019 | 1/3 | SYR4 |
| Chloroform | 50.671 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 36.727 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 30.34 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019
Highest in the ZIP: 30.599 µg/L — WEST COLUMBIA CITY OF (SC3210004) · 34,028 people · 2019 | 3/3 | SYR4 |
| Bromoform | 5.303 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019
Highest in the ZIP: 30.385 µg/L — CAYCE CITY OF (SC3210003) · 17,460 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 4.3 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019
Highest in the ZIP: 27.01 µg/L — CAYCE CITY OF (SC3210003) · 17,460 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 13.3645 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019
Highest in the ZIP: 21.08 µg/L — WEST COLUMBIA CITY OF (SC3210004) · 34,028 people · 2019 | 3/3 | SYR4 |
| Lead | 7 µg/L 47% of the EPA limit 15 µg/L Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019
Highest in the ZIP: 11.1 µg/L — CAYCE CITY OF (SC3210003) · 17,460 people · 2017 | 3/3 | SYR4 |
| Dibromoacetic Acid | 2.487 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019
Highest in the ZIP: 9.865 µg/L — CAYCE CITY OF (SC3210003) · 17,460 people · 2019 | 3/3 | SYR4 |
| Monobromoacetic Acid | 3.6285 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019
Highest in the ZIP: 9.008 µg/L — WEST COLUMBIA CITY OF (SC3210004) · 34,028 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 4.3645 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2019
Highest in the ZIP: 5.9225 µg/L — CAYCE CITY OF (SC3210003) · 17,460 people · 2019 | 2/3 | SYR4 |
| Cadmium | 0.2700 µg/L 5.4% of the EPA limit 5 µg/L Highest in the ZIP: CAYCE CITY OF (SC3210003) · 17,460 people · 2019 | 1/3 | SYR4 |
| Hfpo-Da | 0.0101 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2024 | 3/3 | UCMR-5 |
| PFOS | 0.0062 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2024
Highest in the ZIP: 0.0079 µg/L — WEST COLUMBIA CITY OF (SC3210004) · 34,028 people · 2025 | 3/3 | UCMR-5 |
| PFOA | 0.0044 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2024
Highest in the ZIP: 0.0061 µg/L — WEST COLUMBIA CITY OF (SC3210004) · 34,028 people · 2025 | 3/3 | UCMR-5 |
| Pfpea | 0.0048 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2024
Highest in the ZIP: 0.0059 µg/L — WEST COLUMBIA CITY OF (SC3210004) · 34,028 people · 2025 | 3/3 | UCMR-5 |
| Pfhxa | 0.0045 µg/L No EPA limit set Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2024
Highest in the ZIP: 0.0053 µg/L — WEST COLUMBIA CITY OF (SC3210004) · 34,028 people · 2025 | 3/3 | UCMR-5 |
| PFBS | 0.0041 µg/L No EPA limit set Highest in the ZIP: WEST COLUMBIA CITY OF (SC3210004) · 34,028 people · 2025 | 2/3 | UCMR-5 |
| Lead | 0.0040 mg/L 27% of the EPA limit 0.0150 mg/L Main supplier: JOINT MUNICIPAL WSC (SC3220003) · 47,838 people · 2025 | 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 29170
| Supplier | State | Population served |
|---|---|---|
| JOINT MUNICIPAL WSC (SC3220003) | SC | 47,838 |
| WEST COLUMBIA CITY OF (SC3210004) | SC | 34,028 |
| CAYCE CITY OF (SC3210003) | SC | 17,460 |
Frequently asked questions about ZIP 29170 tap water
Is the tap water in ZIP 29170 safe to drink?
EPA testing detected 24 contaminants across the water suppliers serving ZIP 29170. 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 29170?
3 public water suppliers report EPA drinking-water monitoring for ZIP 29170. Each is listed above with its population served.
What contaminants are in ZIP 29170's water?
EPA monitoring detected Fluoride, Nitrate, TTHM, Copper, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.