ZIP 99338: Kennewick, WA Tap Water
ZIP 99338 is in the Kennewick, WA area, most likely served by KENNEWICK CITY OF. A ZIP is a postal boundary, not a service area, so confirm your supplier on your water bill.
Test results for KENNEWICK CITY OF
Results describe the water system, not a specific tap in ZIP 99338. Each bar marks the listed reference for that substance.
- above a listed reference
- 3
- detected, within reference or no limit
- 4
- aesthetic measures
- 0
- tested, not detected
- 24
- PFOSPerfluorooctanesulfonic acid (PFOS)11.5ng/L4.0 ng/L federal MCL (2024)Above EPA's 2024 limit (one sample) · EPA UCMR 5 · 2023Evidence
- PFOAPerfluorooctanoic acid (PFOA)4.6ng/L4.0 ng/L federal MCL (2024)Above EPA's 2024 limit (one sample) · EPA UCMR 5 · 2023Evidence
- PFHxSPerfluorohexanesulfonic acid (PFHxS)10.6ng/L10 ng/L federal MCL (2024)Above EPA's 2024 limit (one sample) · EPA UCMR 5 · 2023Evidence
- LiLithium9.38µg/L10 µg/L EPA health reference level (screening, not a legal limit)Below the listed reference · EPA UCMR 5 · 2023Evidence
- PFBSPerfluorobutanesulfonic acid (PFBS)6.4ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Below the listed reference · EPA UCMR 5 · 2023Evidence
- PFHxAPerfluorohexanoic acid (PFHxA)6.5ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)Below the listed reference · EPA UCMR 5 · 2023Evidence
- PFPeAPerfluoropentanoic acid (PFPeA)7.5ng/LNo federal or state limit; shown for transparencyNo federal or state limit · EPA UCMR 5 · 2023Evidence
Not measured: no utility report on file. Hardness affects fixtures and appliances, not health.
Below each lab’s reporting limit. A result, not zero, and it covers only what was tested.
Show all 24Hide list
- 11Cl-PF3OUdS
- 4:2 FTS
- 6:2 FTS
- 8:2 FTS
- 9Cl-PF3ONS
- ADONA
- HFPO-DA (GenX)
- NEtFOSAA
- NFDHA
- NMeFOSAA
- PFBA
- PFDA
- PFDoA
- PFEESA
- PFHpA
- PFHpS
- PFMBA
- PFMPA
- PFNA
- PFPeS
- PFTA
- PFTrDA
- PFUnA
- Lead (90th percentile)
Go from this record to a decision.
Three results are above their listed reference. Lead mostly enters from building plumbing, which this system-level record can’t see.
- UNDERSTANDThe Kennewick city report
The same system record, with every finding and its source.
Open city report → - SOLVETreatment for PFAS
Reverse osmosis, or carbon certified for PFAS. Check for NSF/ANSI 53 or 58, with PFHxS/PFOA/PFOS/PFBS/PFHxA/PFPeA named on the listing.
See treatment → - TESTTest your own tap
The only way to see what your building adds.
How to test →
Frequently asked
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Follow ZIP 99338's water →Which water system serves ZIP 99338?
The public system on record for ZIP 99338 (Kennewick, WA) is KENNEWICK CITY OF. A ZIP is a postal boundary, not a service area. Confirm your supplier on your water bill.
Is the water in ZIP 99338 the same as Kennewick's?
ZIP 99338 falls within the Kennewick, WA area, but a ZIP code can span more than one utility. Read the serving system's own record for the results that apply to your address.
How do I find the exact water system for ZIP 99338?
Check the utility name on your water bill, or resolve it from your street address with Find My Water. The ZIP-level view lists candidate systems, not a confirmed household match.