What was found in Clarksville'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 | 940 µg/L 24% of the EPA limit 4000 µg/L Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019 | 1/4 | SYR4 |
| Nitrate-Nitrite | 512 µg/L 5.1% of the EPA limit 10000 µg/L Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019 | 1/4 | SYR4 |
| Lead | 373.025 µg/L 2487% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019 | 4/4 | SYR4 |
| Nitrate | 290 µg/L 2.9% of the EPA limit 10000 µg/L Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2014 | 1/4 | SYR4 |
| Copper | 135.39999999999998 µg/L 10% of the EPA limit 1300 µg/L Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019 | 4/4 | SYR4 |
| TTHM | 24.57000000000001 µg/L 31% of the EPA limit 80 µg/L Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019
Highest in the city: 52.97 µg/L — HORSEHEAD WATER ASSOCIATION · 5,792 people · 2019 | 4/4 | SYR4 |
| Chloroform | 11.919999999999993 µg/L No EPA limit set Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019
Highest in the city: 28.429999999999996 µg/L — HORSEHEAD WATER ASSOCIATION · 5,792 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 7.050000000000001 µg/L No EPA limit set Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019
Highest in the city: 14.869999999999997 µg/L — HORSEHEAD WATER ASSOCIATION · 5,792 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 8.37 µg/L 14% of the EPA limit 60 µg/L Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019
Highest in the city: 13.78 µg/L — SPADRA-GOOSE CAMP WATER ASSOC · 517 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 6.318 µg/L No EPA limit set Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019
Highest in the city: 10.87 µg/L — HORSEHEAD WATER ASSOCIATION · 5,792 people · 2019 | 4/4 | SYR4 |
| Bromate | 9.88 µg/L 99% of the EPA limit 10 µg/L Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019 | 1/4 | SYR4 |
| Dichloroacetic Acid | 4.71 µg/L No EPA limit set Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019
Highest in the city: 8.04 µg/L — SPADRA-GOOSE CAMP WATER ASSOC · 517 people · 2019 | 4/4 | SYR4 |
| Bromoform | 2.41 µg/L No EPA limit set Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019
Highest in the city: 6.3649999999999975 µg/L — HORSEHEAD WATER ASSOCIATION · 5,792 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 3.6 µg/L No EPA limit set Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019
Highest in the city: 5.259999999999999 µg/L — SPADRA-GOOSE CAMP WATER ASSOC · 517 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 5.1 µg/L No EPA limit set Highest in the city: HORSEHEAD WATER ASSOCIATION · 5,792 people · 2019 | 2/4 | SYR4 |
| Dibromoacetic Acid | 2.92 µg/L No EPA limit set Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019 | 4/4 | SYR4 |
| Monobromoacetic Acid | 1.8 µg/L No EPA limit set Highest in the city: SPADRA-GOOSE CAMP WATER ASSOC · 517 people · 2019 | 1/4 | SYR4 |
| Dichloromethane | 0.6800 µg/L 14% of the EPA limit 5 µg/L Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2019 | 1/4 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: CLARKSVILLE CONNECTED UTILITIES · 9,410 people · 2025 | 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 Clarksville
| Supplier | Population served |
|---|---|
| CLARKSVILLE CONNECTED UTILITIES | 9,410 |
| HORSEHEAD WATER ASSOCIATION | 5,792 |
| LUDWIG WATER ASSOCIATION | 1,610 |
| SPADRA-GOOSE CAMP WATER ASSOC | 517 |
Frequently asked questions about Clarksville tap water
Is Clarksville tap water safe to drink?
EPA testing detected 19 contaminants in the water serving Clarksville. 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 Clarksville?
4 public water suppliers report drinking-water monitoring for Clarksville, Arkansas to the EPA. Each is listed above with its population served.
What contaminants are in Clarksville's water?
The contaminants EPA monitoring detected in Clarksville include Fluoride, Nitrate-Nitrite, Lead, Nitrate, Copper. 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.