What was found in Molalla'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 | 1250 µg/L 31% of the EPA limit 4000 µg/L Highest in the city: FOREST HAVEN SUBDIVISION · 165 people · 2019 | 3/7 | SYR4 |
| Copper | 166.55 µg/L 13% of the EPA limit 1300 µg/L Main supplier: MOLALLA, CITY OF · 10,298 people · 2018
Highest in the city: 652.5 µg/L — ZIG ZAG VILLAGE WATER SYSTEM · 80 people · 2019 | 7/7 | SYR4 |
| Nitrate | 212 µg/L 2.1% of the EPA limit 10000 µg/L Main supplier: MOLALLA, CITY OF · 10,298 people · 2019 | 6/7 | SYR4 |
| Nitrate-Nitrite | 127 µg/L 1.3% of the EPA limit 10000 µg/L Main supplier: MOLALLA, CITY OF · 10,298 people · 2018 | 4/7 | SYR4 |
| Lead | 54 µg/L 360% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: MOLALLA, CITY OF · 10,298 people · 2018 | 7/7 | SYR4 |
| Barium | 2.74 µg/L 0.1% of the EPA limit 2000 µg/L Main supplier: MOLALLA, CITY OF · 10,298 people · 2018
Highest in the city: 20.629 µg/L — WUNDER MOBILE PARK · 100 people · 2019 | 7/7 | SYR4 |
| TTHM | 19.245 µg/L 24% of the EPA limit 80 µg/L Main supplier: MOLALLA, CITY OF · 10,298 people · 2019 | 2/7 | SYR4 |
| Total Haloacetic Acids (HAA5) | 18.2 µg/L 30% of the EPA limit 60 µg/L Main supplier: MOLALLA, CITY OF · 10,298 people · 2019 | 1/7 | SYR4 |
| Nitrite | 10 µg/L 1% of the EPA limit 1000 µg/L Highest in the city: PETES MOUNTAIN WATER CO · 250 people · 2019 | 1/7 | SYR4 |
| Arsenic | 6.81 µg/L 68% of the EPA limit 10 µg/L Highest in the city: TIMBERLINE RIM WATER CO INC · 800 people · 2019 | 3/7 | SYR4 |
| Chromium | 2.1 µg/L 2.1% of the EPA limit 100 µg/L Highest in the city: PETES MOUNTAIN WATER CO · 250 people · 2019 | 1/7 | SYR4 |
| Tetrachloroethylene | 1.775 µg/L 36% of the EPA limit 5 µg/L Highest in the city: ZIG ZAG VILLAGE WATER SYSTEM · 80 people · 2017 | 1/7 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.4515 µg/L 24% of the EPA limit 6 µg/L Highest in the city: WUNDER MOBILE PARK · 100 people · 2019 | 1/7 | SYR4 |
| Dichloromethane | 0.6100 µg/L 12% of the EPA limit 5 µg/L Highest in the city: FOREST HAVEN SUBDIVISION · 165 people · 2019 | 1/7 | SYR4 |
| 6:2 Fts | 0.0113 µg/L No EPA limit set Main supplier: MOLALLA, CITY OF · 10,298 people · 2023 | 1/7 | UCMR-5 |
| Lead | 0.0013 mg/L 8.4% of the EPA limit 0.0150 mg/L Main supplier: MOLALLA, CITY OF · 10,298 people · 2024
Highest in the city: 0.0034 mg/L — ZIG ZAG VILLAGE WATER SYSTEM · 80 people · 2025 | 7/7 | LCR |
Water suppliers serving Molalla
| Supplier | Population served |
|---|---|
| MOLALLA, CITY OF | 10,298 |
| TIMBERLINE RIM WATER CO INC | 800 |
| PETES MOUNTAIN WATER CO | 250 |
| FOREST HAVEN SUBDIVISION | 165 |
| WUNDER MOBILE PARK | 100 |
| ZIG ZAG VILLAGE WATER SYSTEM | 80 |
| FOREST PARK MOBILE VILLAGE | 75 |
Frequently asked questions about Molalla tap water
Is Molalla tap water safe to drink?
EPA testing detected 16 contaminants in the water serving Molalla. 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 Molalla?
7 public water suppliers report drinking-water monitoring for Molalla, Oregon to the EPA. Each is listed above with its population served.
What contaminants are in Molalla's water?
The contaminants EPA monitoring detected in Molalla include Fluoride, Copper, Nitrate, Nitrate-Nitrite, Lead. 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.