What was found in Channelview'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 | 1031.5 µg/L 26% of the EPA limit 4000 µg/L Highest in the city: HARRIS COUNTY FWSD 47 · 4,250 people · 2017 | 2/3 | SYR4 |
| Nitrate | 890 µg/L 8.9% of the EPA limit 10000 µg/L Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019 | 3/3 | SYR4 |
| Nitrate-Nitrite | 576.5 µg/L 5.8% of the EPA limit 10000 µg/L Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2015 | 2/3 | SYR4 |
| Copper | 90.735 µg/L 7% of the EPA limit 1300 µg/L Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019
Highest in the city: 310 µg/L — HARRIS COUNTY FWSD 6 · 2,229 people · 2018 | 3/3 | SYR4 |
| Barium | 161.7 µg/L 8.1% of the EPA limit 2000 µg/L Highest in the city: HARRIS COUNTY FWSD 6 · 2,229 people · 2018 | 2/3 | SYR4 |
| Cyanide | 127.5 µg/L 64% of the EPA limit 200 µg/L Highest in the city: HARRIS COUNTY FWSD 47 · 4,250 people · 2017 | 1/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 46.14 µg/L 77% of the EPA limit 60 µg/L Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019 | 3/3 | SYR4 |
| Chloroform | 41.87 µg/L No EPA limit set Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019 | 3/3 | SYR4 |
| TTHM | 37 µg/L 46% of the EPA limit 80 µg/L Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019
Highest in the city: 38.51 µg/L — HARRIS COUNTY FWSD 47 · 4,250 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 37.05 µg/L No EPA limit set Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 24.19 µg/L No EPA limit set Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019 | 2/3 | SYR4 |
| Lithium | 18.1 µg/L No EPA limit set Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2024 | 3/3 | UCMR-5 |
| Lead | 3.1025 µg/L 21% of the EPA limit 15 µg/L Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019
Highest in the city: 12.7 µg/L — HARRIS COUNTY FWSD 47 · 4,250 people · 2017 | 3/3 | SYR4 |
| Bromodichloromethane | 10.6 µg/L No EPA limit set Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019
Highest in the city: 11.77 µg/L — HARRIS COUNTY FWSD 47 · 4,250 people · 2019 | 3/3 | SYR4 |
| Nitrite | 10 µg/L 1% of the EPA limit 1000 µg/L Highest in the city: HARRIS COUNTY FWSD 47 · 4,250 people · 2015 | 1/3 | SYR4 |
| Dibromochloromethane | 5.02 µg/L No EPA limit set Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019
Highest in the city: 8.4 µg/L — HARRIS COUNTY FWSD 47 · 4,250 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 6.83 µg/L No EPA limit set Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019 | 2/3 | SYR4 |
| Bromoform | 3.81 µg/L No EPA limit set Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019
Highest in the city: 4.99 µg/L — HARRIS COUNTY FWSD 6 · 2,229 people · 2019 | 3/3 | SYR4 |
| Arsenic | 4.585 µg/L 46% of the EPA limit 10 µg/L Highest in the city: HARRIS COUNTY FWSD 47 · 4,250 people · 2019 | 2/3 | SYR4 |
| Dibromoacetic Acid | 1.93 µg/L No EPA limit set Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019
Highest in the city: 2.4 µg/L — HARRIS COUNTY FWSD 47 · 4,250 people · 2019 | 3/3 | SYR4 |
| Dalapon | 1.9 µg/L 1% of the EPA limit 200 µg/L Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2019 | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L Highest in the city: HARRIS COUNTY FWSD 47 · 4,250 people · 2016 | 2/3 | SYR4 |
| Simazine | 0.3400 µg/L 8.5% of the EPA limit 4 µg/L Highest in the city: HARRIS COUNTY FWSD 47 · 4,250 people · 2019 | 1/3 | SYR4 |
| Atrazine | 0.2160 µg/L 7.2% of the EPA limit 3 µg/L Highest in the city: HARRIS COUNTY FWSD 47 · 4,250 people · 2019 | 1/3 | SYR4 |
| Pfba | 0.0082 µg/L No EPA limit set Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2024 | 2/3 | UCMR-5 |
| Pfhxa | 0.0036 µg/L No EPA limit set Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2024 | 2/3 | UCMR-5 |
| Pfpea | 0.0036 µg/L No EPA limit set Highest in the city: HARRIS COUNTY FWSD 47 · 4,250 people · 2024 | 1/3 | UCMR-5 |
| Lead | 0.0029 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: HARRIS COUNTY WCID 21 · 13,845 people · 2023 | 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 Channelview
| Supplier | Population served |
|---|---|
| HARRIS COUNTY WCID 21 | 13,845 |
| HARRIS COUNTY FWSD 47 | 4,250 |
| HARRIS COUNTY FWSD 6 | 2,229 |
Frequently asked questions about Channelview tap water
Is Channelview tap water safe to drink?
EPA testing detected 28 contaminants in the water serving Channelview. 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 Channelview?
3 public water suppliers report drinking-water monitoring for Channelview, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Channelview's water?
The contaminants EPA monitoring detected in Channelview include Fluoride, Nitrate, Nitrate-Nitrite, Copper, Barium. 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.