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14 Total Water Contaminants Found in Pullman, WA
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The Environmental Protection Agency (EPA) found 14 total water contaminants in Pullman, Washington, in research conducted in 2024. Municipal water in Pullman comes from the Pullman-Moscow Groundwater Basin, where contaminants enter the water source. Water contaminants are not always harmful, but in large quantities can cause adverse health effects. The Environmental Working Group (EWG) advises the public to only consume water that follows health guidelines.
PULLMAN WATER CONTAMINANTS
- Bromodichloromethane: 1.62 ppb (ABOVE EWG GUIDELINE: 0.06 ppb)
- Chloroform: 1.47 ppb (ABOVE EWG GUIDELINE: 0.4 ppb)
- Dibromochloromethane: 1.87 (ABOVE EWG GUIDELINE: 0.1 ppb)
- Haloacetic acids (HAA9): 2.74 ppb (ABOVE EWG GUIDELINE: 0.06 ppb)
- Total trihalomethanes (TTHMs): 5.18 ppb (ABOVE EWG GUIDELINE: 0.15 ppb)
- Barium: 98.9 ppb (EWG GUIDELINE: 700 ppb)
- Bromoform: 0.325 ppb (EWG GUIDELINE: 0.5 ppb)
- Chlorate: 190.5 ppb (EWG GUIDELINE: 210 ppb)
- Chromium: 1.88 ppb (EWG GUIDELINE: 100 ppb)
- Fluoride: 0.750 ppb (NO EWG GUIDELINE)
- Germanium: 0.0620 ppb (NO EWG GUIDELINE)
- Lithium: 7.98 ppb (NO EWG GUIDELINE)
- Manganese: 55.6 ppb (EWG GUIDELINE: 100 ppb)
- Strontium: 0.174 ppb (EWG GUIDELINE: 1,500 ppb)
POTENTIAL HEALTH EFFECTS OF PULLMAN WATER CONTAMINANTS
- Bromodichloromethane: Increased risk of cancer and complications during pregnancy
- Chloroform: Increased risk of cancer and complications during pregnancy
- Dibromochloromethane: Increased risk of cancer and complications during pregnancy
- Total trihalomethanes (TTHMs): Increased risk of cancer
WHAT YOU CAN DO
If you’re located in Pullman and have concerns about water contaminants, have your water tested. We offer no-cost in-home water testing for Pullman homeowners. You can also purchase certified mail-in water testing from our website, realh2osolutions.com.
SOURCE
Environmental Working Group (EWG) “EWG’s Tap Water Database: What’s in Your Drinking Water?” 2024 https://www.ewg.org/tapwater/
Published on: 1/9/2026
Last updated on: 1/9/2026
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