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City of Buellton Water DivisionWater quality report

Standards for what was found here

5358
Serves
5,161
Connections
1,841
Water source
Surface water bought from another system
Based in
Buellton, CA
County
Santa Barbara
Owner
Local government
The ZIP code it serves

93427

PWSID CA4210018 · EPA data

Read this first

  • Copper In the latest period, 9 in 10 homes sampled were at or below 1.7 ppm, above the 1.3 ppm action level.
  • Lithium was found in four of 8 samples, highest 27.3 ppb. Above EPA’s health reference level of 10 ppb, a screening level rather than an enforceable limit.

No health-based violations on file since 2016.

What handles it

What was found, stop by stop

  • Below the health goal
  • Above the health goal
  • Above the legal limit
  • No federal data

  1. At the source

    EPA UCMR 5 sampled this utility for 29 PFAS and lithium from Feb. 12, 2025 to April 15, 2026. Each tick under a result’s line is one sample where it was found, dated when you point at it.

  2. Lithium

    Above EPA’s health benchmark

    27.3ppb

    Highest of 8 samples; found in four

    Above EPA’s health reference level of 10 ppb, a screening level rather than an enforceable limit.

    What handles it: No certification claim covers this compound yet.

  3. In treatment

    No federal results for this stop. Disinfection byproduct, chlorine and fluoride levels are in City of Buellton Water Division’s own annual report, which it must send you every year.

  4. In the pipes

    Lead and copper, from the homes the utility samples. Your own service line, solder and fixtures decide yours.

  5. Copper

    Above the action level

    1.7ppm

    90th percentile, 2006 to 2008

    In the latest period, 9 in 10 homes sampled were at or below 1.7 ppm, above the 1.3 ppm action level.

    EPA SDWIS, lead and copper monitoring periods ending 1993 to 2008. The line stops at the latest period; each tick under it is an earlier one.

  6. At your tap

    The last stretch is your own plumbing. A certified lab test is the only way to know what reaches your glass. Lead in your water: what to do

Tested and not found

Below EPA’s minimum reporting level in every sample taken from Feb. 12, 2025 to April 15, 2026. Not found means not measured above that level, which is not the same as zero.

All 30 compounds tested and not found
  • 11Cl-PF3OUdS
  • 4:2 FTS
  • 6:2 FTS
  • 8:2 FTS
  • 9Cl-PF3ONS
  • ADONA
  • HFPO-DA (GenX)
  • Lead
  • NEtFOSAA
  • NFDHA
  • NMeFOSAA
  • PFBA
  • PFBS
  • PFDA
  • PFDoA
  • PFEESA
  • PFHpA
  • PFHpS
  • PFHxA
  • PFHxS
  • PFMBA
  • PFMPA
  • PFNA
  • PFOA
  • PFOS
  • PFPeA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA

Violations since 2016

No health-based violations on file with EPA since 2016.

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

At the tap, or for the whole house?

Lead and copper usually come from pipes and fixtures inside or near your home. A whole-house system sits where water enters, so it cannot catch what your own plumbing adds after it. For those, the filter that counts is the one at the tap. How whole-house systems compare.

Compare five-year costs

Filters with those claims on a certifier’s listing

TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

What this report cannot tell you

  • Levels of everything else. Federal bulk data carries results for PFAS, lithium, lead and copper, and violations for the rest. Nitrate, arsenic, disinfection byproducts and other levels are in City of Buellton Water Division’s own annual report, which it must send you every year.
  • Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.
  • Anything after the latest data. SDWIS data is from 2026 Q2; UCMR 5 samples are from Feb. 12, 2025 to April 15, 2026.

Other California utilities

All California utilities

Sources

What to do next

  1. Start with Copper

    What each marked result does to health, where it comes from, and the certification claim that addresses it.

  2. Read the utility’s own report

    City of Buellton Water Division must send you a water quality report every year. It lists nitrate, arsenic and byproduct levels this page cannot.

  3. Test your own tap for lead

    Your service line, solder and fixtures decide the lead at your faucet, not the utility’s average.

  4. Compare five-year costs

    What the filters certified for these results cost over five years, cartridges included.