What was found in Arp'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 |
|---|---|---|---|
| Copper | 915 µg/L 70% of the EPA limit 1300 µg/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2018
Highest in the city: 1775 µg/L — WRIGHT CITY WSC 1 · 1,350 people · 2019 | 3/3 | SYR4 |
| Fluoride | 1294 µg/L 32% of the EPA limit 4000 µg/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2018 | 3/3 | SYR4 |
| Nitrate-Nitrite | 29.68 µg/L 0.3% of the EPA limit 10000 µg/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 194.48 µg/L — CITY OF ARP · 1,249 people · 2019 | 3/3 | SYR4 |
| Nitrate | 30.9 µg/L 0.3% of the EPA limit 10000 µg/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 183 µg/L — CITY OF ARP · 1,249 people · 2019 | 3/3 | SYR4 |
| TTHM | 115.84 µg/L 145% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 166 µg/L — WRIGHT CITY WSC 1 · 1,350 people · 2019 | 3/3 | SYR4 |
| Asbestos | 70.9333 MFL 1013% of the EPA limit, at the 95th percentile of samples — 7 MFL Highest in the city: CITY OF ARP · 1,249 people · 2019 | 1/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 28.04 µg/L 47% of the EPA limit 60 µg/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 70.8 µg/L — CITY OF ARP · 1,249 people · 2019 | 3/3 | SYR4 |
| Chloroform | 31.9 µg/L No EPA limit set Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 67.8 µg/L — CITY OF ARP · 1,249 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 36.885 µg/L No EPA limit set Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 57.445 µg/L — WRIGHT CITY WSC 1 · 1,350 people · 2019 | 3/3 | SYR4 |
| Bromoform | 8.916 µg/L No EPA limit set Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 52.37 µg/L — WRIGHT CITY WSC 1 · 1,350 people · 2019 | 2/3 | SYR4 |
| Bromodichloromethane | 38.4 µg/L No EPA limit set Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 10.9 µg/L No EPA limit set Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 37.325 µg/L — CITY OF ARP · 1,249 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 10.76 µg/L No EPA limit set Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 28.4 µg/L — CITY OF ARP · 1,249 people · 2019 | 3/3 | SYR4 |
| Barium | 15.9 µg/L 0.8% of the EPA limit 2000 µg/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 23.9 µg/L — WRIGHT CITY WSC 1 · 1,350 people · 2018 | 3/3 | SYR4 |
| Dibromoacetic Acid | 8.225 µg/L No EPA limit set Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 13.74 µg/L — WRIGHT CITY WSC 1 · 1,350 people · 2019 | 3/3 | SYR4 |
| Lead | 6.827 µg/L 46% of the EPA limit 15 µg/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2018 | 3/3 | SYR4 |
| Monochloroacetic Acid | 4.13 µg/L No EPA limit set Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 4.905 µg/L — CITY OF ARP · 1,249 people · 2019 | 3/3 | SYR4 |
| Chromium | 1.54 µg/L 1.5% of the EPA limit 100 µg/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 2.9 µg/L — WRIGHT CITY WSC 1 · 1,350 people · 2018 | 3/3 | SYR4 |
| Benzene | 2.828 µg/L 57% of the EPA limit 5 µg/L Highest in the city: WRIGHT CITY WSC 1 · 1,350 people · 2019 | 1/3 | SYR4 |
| Monobromoacetic Acid | 1.2 µg/L No EPA limit set Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019
Highest in the city: 2.005 µg/L — WRIGHT CITY WSC 1 · 1,350 people · 2019 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 1 pCi/L 20% of the EPA limit 5 pCi/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2012 | 1/3 | SYR4 |
| Dichloromethane | 0.8985 µg/L 18% of the EPA limit 5 µg/L Highest in the city: CITY OF ARP · 1,249 people · 2019 | 1/3 | SYR4 |
| Selenium | 0.6050 µg/L 1.2% of the EPA limit 50 µg/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2019 | 1/3 | SYR4 |
| Antimony, Total | 0.4800 µg/L 8% of the EPA limit 6 µg/L Highest in the city: WRIGHT CITY WSC 1 · 1,350 people · 2018 | 2/3 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: WRIGHT CITY WSC 2 · 2,124 people · 2026 | 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.
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 Arp
| Supplier | Population served |
|---|---|
| WRIGHT CITY WSC 2 | 2,124 |
| WRIGHT CITY WSC 1 | 1,350 |
| CITY OF ARP | 1,249 |
Frequently asked questions about Arp tap water
Is Arp tap water safe to drink?
EPA testing detected 25 contaminants in the water serving Arp. 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 Arp?
3 public water suppliers report drinking-water monitoring for Arp, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Arp's water?
The contaminants EPA monitoring detected in Arp include Copper, Fluoride, Nitrate-Nitrite, Nitrate, 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.