What was found in Portland'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 | 325 µg/L 25% of the EPA limit 1300 µg/L Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| TTHM | 59.15 µg/L 74% of the EPA limit 80 µg/L Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Lithium | 38.3 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2024 | 1/1 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 33.5 µg/L 56% of the EPA limit 60 µg/L Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Bromoform | 31.24 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 22.35 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 20.15 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 18.55 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Lead | 14 µg/L 93% of the EPA limit 15 µg/L Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 12.8 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Chloroform | 10.2 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 9.66 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 6.435 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 3.425 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2019 | 1/1 | SYR4 |
| Pfba | 0.0097 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2024 | 1/1 | UCMR-5 |
| Pfpea | 0.0051 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2024 | 1/1 | UCMR-5 |
| Pfhxa | 0.0040 µg/L No EPA limit set Main supplier: CITY OF PORTLAND · 22,933 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0015 mg/L 9.9% of the EPA limit 0.0150 mg/L Main supplier: CITY OF PORTLAND · 22,933 people · 2025 | 1/1 | LCR |
Water suppliers serving Portland
| Supplier | Population served |
|---|---|
| CITY OF PORTLAND | 22,933 |
Frequently asked questions about Portland tap water
Is Portland tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Portland. 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 Portland?
1 public water supplier report drinking-water monitoring for Portland, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Portland's water?
The contaminants EPA monitoring detected in Portland include Copper, TTHM, Lithium, Total Haloacetic Acids (HAA5), Bromoform. 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.