CITY WATER REPORT
Is Bothell Tap Water Safe? 2026 Water Quality Report
BOTHELL WATER CITY OF serves Bothell · 33,643 residents.
- Utility
- BOTHELL WATER CITY OF
- Population served
- 33,643
- Water source
- Surface water
- Disinfectant
- Pending utility report
- Hardness
- Pending utility report
Perfluorooctanoic acid (PFOA): not detected (limit 4.0 ng/L).
About this score
What the record shows
BOTHELL WATER CITY OF (EPA PWSID WA5307900) delivers surface water to 33,643 residents. This report reflects 3 federally regulated PFAS result(s) from the 2024 UCMR5 round. Water hardness and disinfectant type are pending the utility's own annual report.
Your water system
resolution confirmed
- BOTHELL WATER CITY OF — serves most of the city
BOTHELL WATER CITY OF is the primary municipal supplier for most Bothell addresses. Confirm your supplier on your utility bill.
BOTHELL WATER CITY OF is the public system on record for this city. This identifies which utility serves the city — confirm yours on your water bill before acting on a specific finding.
What stands out in Bothell
Each row links to a dated measurement in the supplier profile. A missing measurement is never shown as a non-detect.
What this data doesn’t tell you
Public water-system monitoring reflects the system, not the water at an individual household tap at a given moment. Home plumbing, fixtures, storage, sampling location and timing can all change what actually reaches your glass.
The data behind this report
| Contaminant | Result | Benchmark | Sampled | Source |
|---|---|---|---|---|
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | 2024 | UCMR5 Analytical Results — BOTHELL WATER CITY OF (WA5307900) |
| Perfluorooctane sulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | 2024 | UCMR5 Analytical Results — BOTHELL WATER CITY OF (WA5307900) |
| Perfluorohexane sulfonic acid (PFHxS) | < 10 ng/L | 10.0 ng/L federal MCL (2024) | 2024 | UCMR5 Analytical Results — BOTHELL WATER CITY OF (WA5307900) |
Perfluorooctanoic acid (PFOA)
- Result
- < 4 ng/L
- Benchmark
- 4.0 ng/L federal MCL (2024)
- Sampled
- 2024
Perfluorooctane sulfonic acid (PFOS)
- Result
- < 4 ng/L
- Benchmark
- 4.0 ng/L federal MCL (2024)
- Sampled
- 2024
Perfluorohexane sulfonic acid (PFHxS)
- Result
- < 10 ng/L
- Benchmark
- 10.0 ng/L federal MCL (2024)
- Sampled
- 2024
Every value is the published result from the cited public record. A reporting limit is the lowest level the method could reliably quantify — a non-detect is not a guarantee of zero.
Frequently asked questions
Who provides tap water in Bothell?
BOTHELL WATER CITY OF (PWS ID WA5307900) is the public water system on record for Bothell, Washington. Confirm the utility on your water bill before acting on a specific finding.
Where does Bothell get its drinking water?
Surface water (primary source of record in EPA SDWIS).
What does the latest Bothell water report show?
Across the tracked parameters, PurityMap's current record for Bothell shows 0 contaminants measured above their benchmark and 3 within benchmark. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.
Are PFAS "forever chemicals" in Bothell's water?
PFAS compounds appear in Bothell's published record; the findings show each one's measured state and how it compares to its benchmark.
Sources
Methodology: how we analyze water.
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- Systems published
- 1 of 1
- Latest sample on record
- 2024 (PFAS) / LCR (lead)
The record, not the water. These describe how completely the city is monitored — not a quality score.