Also detected, no federal limit: PFPeA, PFHxA.
Is there PFAS in Scotts Valley Water District water?
Yes, at low levels. 2 PFAS were detected, all below EPA's 2024 limits.
Scotts Valley Water District is a public water system drawing on groundwater, based in Scotts Valley, California, serving about 11,197 people. Under EPA's Fifth Unregulated Contaminant Monitoring Rule it was tested for 29 PFAS and lithium 6 times across 3 sampling points between Nov 2023 and May 2024.
Every PFAS detected
| PFAS | Detected | Highest | Worst point avg | EPA limit |
|---|---|---|---|---|
| PFPeA Perfluoropentanoic acid |
2 of 6 | 6.5 ppt | 6.5 ppt | none |
| PFHxA Perfluorohexanoic acid |
2 of 6 | 4.5 ppt | 4.3 ppt | none |
Not detected: PFOA, PFDA, PFDoA, PFUnA, 11Cl-PF3OUdS, 9Cl-PF3ONS, HFPO-DA, PFBA, 8:2 FTS, 6:2 FTS, PFOS, PFHpS, ADONA, PFPeS, PFMPA, PFTA, PFTrDA, 4:2 FTS, NMeFOSAA, PFNA, PFMBA, PFEESA, NFDHA, PFHxS, PFBS, PFHpA, NEtFOSAA.
Lithium, tested in the same program: highest 69.5 ppb, detected in 6 of 6 samples. EPA's health-based screening level is 10 ppb.
What the EPA limits mean here
In April 2024 EPA set enforceable limits of 4 ppt for PFOA and PFOS, 10 ppt each for PFHxS, PFNA and GenX, and a hazard index of 1 for mixtures. Utilities were given until 2029 to comply. In May 2026 EPA proposed keeping only the PFOA and PFOS limits and moving that deadline to 2031. Until that proposal is final, the 2024 limits stand.
Compliance is judged on a running annual average at each entry point, so we show the average at this system's worst sampling point next to its single highest result. UCMR 5 results do not by themselves put a utility in or out of compliance.
What you can do at home
Levels here are under EPA's limits, so no treatment is required. If you want them lower anyway, a certified reverse osmosis system under the sink handles drinking water, and a whole-house carbon filter also takes out the chlorine or chloramine your utility adds.
Other systems in California
- City of Exeter none detected
- City of Anderson none detected
- Cal-water Service Co.-oroville 1 PFAS detected
- Edwards Afb - Main Base none detected
- Tud - Sonora/jamestown Water System none detected
- Casitas Municipal Water Dist none detected
All 707 tested systems in California
ZIP codes served
95066
As reported by the utility to EPA. Neighbouring ZIPs are often split between systems; your water bill names yours.
Cite this page
Well & Tap. "PFAS in Scotts Valley Water District water: EPA UCMR 5 results." Data: U.S. EPA Fifth Unregulated Contaminant Monitoring Rule, final release August 2026, PWSID CA4410013. https://wellandtap.com/pfas/california/scotts-valley-water-district/
About this data
Source: U.S. EPA, UCMR 5 occurrence data, final release August 2026 (PWSID CA4410013). Population: EPA SDWIS. Averages count results below the reporting level as zero, the same convention EPA uses for running annual averages. Full method.