What was found in Conway'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 |
|---|---|---|---|
| Fluoride | 1350 µg/L 34% of the EPA limit 4000 µg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019
Highest in the city: 3800 µg/L — BUCKSPORT WATER COMPANY (SC2620003) · 17,123 people · 2019 | 2/4 | SYR4 |
| Nitrate-Nitrite | 1410 µg/L 14% of the EPA limit 10000 µg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2014 | 2/4 | SYR4 |
| Nitrate | 620 µg/L 6.2% of the EPA limit 10000 µg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019 | 2/4 | SYR4 |
| Copper | 185 µg/L 14% of the EPA limit 1300 µg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2017
Highest in the city: 397.5 µg/L — BUCKSPORT WATER COMPANY (SC2620003) · 17,123 people · 2018 | 4/4 | SYR4 |
| TTHM | 50.445 µg/L 63% of the EPA limit 80 µg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019
Highest in the city: 81.352 µg/L — BUCKSPORT WATER COMPANY (SC2620003) · 17,123 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 53.07 µg/L 88% of the EPA limit 60 µg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019
Highest in the city: 63.1355 µg/L — CONWAY CITY OF (SC2610008) · 27,005 people · 2019 | 4/4 | SYR4 |
| Chloroform | 38.82 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019
Highest in the city: 39.821 µg/L — CONWAY CITY OF (SC2610008) · 27,005 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 32.388 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019
Highest in the city: 34.4285 µg/L — CONWAY CITY OF (SC2610008) · 27,005 people · 2019 | 4/4 | SYR4 |
| Lithium | 30.1 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2024 | 2/4 | UCMR-5 |
| Bromoform | 28.071 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019
Highest in the city: 29.0965 µg/L — BUCKSPORT WATER COMPANY (SC2620003) · 17,123 people · 2019 | 2/4 | SYR4 |
| Monobromoacetic Acid | 5.452 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019
Highest in the city: 28.8795 µg/L — BUCKSPORT WATER COMPANY (SC2620003) · 17,123 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 2.9075 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019
Highest in the city: 27.884 µg/L — BUCKSPORT WATER COMPANY (SC2620003) · 17,123 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 20.1755 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019
Highest in the city: 23.2195 µg/L — CONWAY CITY OF (SC2610008) · 27,005 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 11.3 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019
Highest in the city: 22.579 µg/L — BUCKSPORT WATER COMPANY (SC2620003) · 17,123 people · 2019 | 4/4 | SYR4 |
| Lead | 6.875 µg/L 46% of the EPA limit 15 µg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2017
Highest in the city: 14.6 µg/L — CONWAY RURAL (SC2620001) · 12,740 people · 2017 | 4/4 | SYR4 |
| Dibromoacetic Acid | 5.832 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019
Highest in the city: 8.46 µg/L — BUCKSPORT WATER COMPANY (SC2620003) · 17,123 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 3.5725 µg/L No EPA limit set Highest in the city: CONWAY CITY OF (SC2610008) · 27,005 people · 2019 | 3/4 | SYR4 |
| Gross Beta Particle Activity | 3 pCi/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019 | 1/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.88 pCi/L 19% of the EPA limit 15 pCi/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2013 | 1/4 | SYR4 |
| Atrazine | 0.8540 µg/L 28% of the EPA limit 3 µg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019 | 1/4 | SYR4 |
| Di(2-ethylhexyl) Adipate | 0.7400 µg/L 0.2% of the EPA limit 400 µg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019 | 1/4 | SYR4 |
| Dichloromethane | 0.6800 µg/L 14% of the EPA limit 5 µg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019 | 1/4 | SYR4 |
| Simazine | 0.1700 µg/L 4.3% of the EPA limit 4 µg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2019 | 1/4 | SYR4 |
| Pfpea | 0.0118 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2024 | 3/4 | UCMR-5 |
| PFOS | 0.0115 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2024 | 3/4 | UCMR-5 |
| PFOA | 0.0114 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2024 | 3/4 | UCMR-5 |
| Pfba | 0.0072 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2024
Highest in the city: 0.0077 µg/L — CONWAY RURAL (SC2620001) · 12,740 people · 2023 | 3/4 | UCMR-5 |
| Pfhxa | 0.0072 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2024 | 3/4 | UCMR-5 |
| PFBS | 0.0056 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2024 | 3/4 | UCMR-5 |
| Pfhpa | 0.0048 µg/L No EPA limit set Main supplier: GSW&SA (SC2620004) · 252,840 people · 2024 | 3/4 | UCMR-5 |
| Lead | 0.00056 mg/L 3.7% of the EPA limit 0.0150 mg/L Main supplier: GSW&SA (SC2620004) · 252,840 people · 2023
Highest in the city: 0.0021 mg/L — BUCKSPORT WATER COMPANY (SC2620003) · 17,123 people · 2024 | 4/4 | 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.
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 Conway
| Supplier | Population served |
|---|---|
| GSW&SA (SC2620004) | 252,840 |
| CONWAY CITY OF (SC2610008) | 27,005 |
| BUCKSPORT WATER COMPANY (SC2620003) | 17,123 |
| CONWAY RURAL (SC2620001) | 12,740 |
Frequently asked questions about Conway tap water
Is Conway tap water safe to drink?
EPA testing detected 31 contaminants in the water serving Conway. 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 Conway?
4 public water suppliers report drinking-water monitoring for Conway, South Carolina to the EPA. Each is listed above with its population served.
What contaminants are in Conway's water?
The contaminants EPA monitoring detected in Conway include Fluoride, Nitrate-Nitrite, Nitrate, Copper, TTHM. 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.