Is Texarkana, AR Tap Water Safe? Quality & Contaminants

What was found in Texarkana'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
Nitrate-Nitrite	470 µg/L 4.7% of the EPA limit 10000 µg/L Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	1/2	SYR4
Copper	57.4 µg/L 4.4% of the EPA limit 1300 µg/L Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2017 Highest in the city: 372 µg/L — MILLER COUNTY PUBLIC WATER AUTHORITY · 803 people · 2019	2/2	SYR4
Nitrate	100 µg/L 1% of the EPA limit 10000 µg/L Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2018	1/2	SYR4
TTHM	87.96 µg/L 110% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	2/2	SYR4
Chloroform	81.15 µg/L No EPA limit set Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	2/2	SYR4
Total Haloacetic Acids (HAA5)	58.91 µg/L 98% of the EPA limit 60 µg/L Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	2/2	SYR4
Dichloroacetic Acid	38.78 µg/L No EPA limit set Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	2/2	SYR4
Trichloroacetic Acid	20.4 µg/L No EPA limit set Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	2/2	SYR4
Bromodichloromethane	15.775 µg/L No EPA limit set Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	2/2	SYR4
Monochloroacetic Acid	5.64 µg/L No EPA limit set Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019 Highest in the city: 13.1 µg/L — MILLER COUNTY PUBLIC WATER AUTHORITY · 803 people · 2019	2/2	SYR4
Lead	3.29 µg/L 22% of the EPA limit 15 µg/L Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019 Highest in the city: 8.26 µg/L — MILLER COUNTY PUBLIC WATER AUTHORITY · 803 people · 2019	2/2	SYR4
Dibromochloromethane	7.5 µg/L No EPA limit set Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	2/2	SYR4
Monobromoacetic Acid	6.25 µg/L No EPA limit set Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	2/2	SYR4
Gross Beta Particle Activity	3.4 pCi/L No EPA limit set Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	1/2	SYR4
Dibromoacetic Acid	2.43 µg/L No EPA limit set Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	2/2	SYR4
Di(2-ethylhexyl) Phthalate	2.23 µg/L 37% of the EPA limit 6 µg/L Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	1/2	SYR4
Bromoform	0.9795 µg/L No EPA limit set Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	1/2	SYR4
2,4-D	0.2900 µg/L 0.4% of the EPA limit 70 µg/L Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	1/2	SYR4
Picloram	0.2400 µg/L 0% of the EPA limit 500 µg/L Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	1/2	SYR4
Chromium	0.2000 µg/L 0.2% of the EPA limit 100 µg/L Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2019	1/2	SYR4
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: TEXARKANA WATER UTILITIES · 50,815 people · 2025	1/2	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 Texarkana

Supplier	Population served
TEXARKANA WATER UTILITIES	50,815
MILLER COUNTY PUBLIC WATER AUTHORITY	803

Frequently asked questions about Texarkana tap water

Is Texarkana tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Texarkana. 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 Texarkana?

2 public water suppliers report drinking-water monitoring for Texarkana, Arkansas to the EPA. Each is listed above with its population served.

What contaminants are in Texarkana's water?

The contaminants EPA monitoring detected in Texarkana include Nitrate-Nitrite, Copper, Nitrate, TTHM, Chloroform. 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.