94515
Calistoga, CA
Napa County · Napa, CA metro area
CALISTOGA, CITY OF

Is Calistoga tap water safe to drink?

Looks OK
Last tested: April 2025
Looks OK
Source: Official EPA UCMR5 federal monitoring data. Last tested April 2025.
Townships:
  • Calistoga CCD, CA
  • Cloverdale-Geyserville CCD, CA
  • Santa Rosa CCD, CA
Neighborhood:
  • Calistoga

The short answer for Calistoga

Calistoga tap water tested within EPA guidelines across all compounds checked (tested April 2025). See the complete test results, measurements, and what was tested.

The health risk for Calistoga

Your water system was tested for chemical contaminants. No exceedances were detected in the most recent test period.
  • All tested compounds were below lab detection limits.
PFAS & other tested compounds (parts per trillion (ppt)) April 2025
0 EPA limit Not detected
Not detected
Detected
measurement
Below detection limit
EPA limit
guideline
Below limit
Comparison
vs. guideline
EPA limit: Below detection limit | Your water: Not detected
Recommended Filters for Calistoga Tap Water

Certified filtration options for common tap-water contaminants.

Water filter recommendation for Calistoga tap water: Epic Pure XP Water Filter Pitcher
Pitcher filter
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NSF-certified dual-layer filtration reduces 70+ contaminants including PFAS, lead, chlorine, microplastics, and bacteria.
NSF/ANSI 42, 53, 401 & P473Removes 99.99% PFASMade in USABPA-free
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Most elevated compounds

No compounds above or close to EPA limits in available data.

View all tested compounds

City of Napa Connection · Tested: January 2025

Compound Measurement EPA Limit Comparison
lithium <9.000 µg/L 10 µg/L Below limit
PFHxS <0.003 µg/L 0.004 µg/L Below limit
HFPO-DA <0.005 µg/L 0.01 µg/L Below limit
PFNA <0.004 µg/L 0.01 µg/L Below limit
PFHxA <0.003 µg/L 3 µg/L Below limit
PFBA <0.005 µg/L 6 µg/L Below limit
11Cl-PF3OUdS <0.005 µg/L 0.005 µg/L Below limit
4:2 FTS <0.003 µg/L 0.003 µg/L Below limit
6:2 FTS <0.005 µg/L 0.005 µg/L Below limit
8:2 FTS <0.005 µg/L 0.005 µg/L Below limit
9Cl-PF3ONS <0.002 µg/L 0.002 µg/L Below limit
ADONA <0.003 µg/L 0.003 µg/L Below limit
PFBS <0.003 µg/L 0.003 µg/L Below limit
PFDA <0.003 µg/L 0.003 µg/L Below limit
PFDoA <0.003 µg/L 0.003 µg/L Below limit
PFHpA <0.003 µg/L 0.003 µg/L Below limit
PFHpS <0.003 µg/L 0.003 µg/L Below limit
PFOA <0.004 µg/L 0.004 µg/L Below limit
PFOS <0.004 µg/L 0.004 µg/L Below limit
PFPeA <0.003 µg/L 0.003 µg/L Below limit
PFTrDA <0.007 µg/L 0.007 µg/L Below limit
PFUnA <0.002 µg/L 0.002 µg/L Below limit

Kimball TP Effluent · Tested: April 2025

Compound Measurement EPA Limit Comparison
lithium <9.000 µg/L 10 µg/L Below limit
PFHxS <0.003 µg/L 0.004 µg/L Below limit
HFPO-DA <0.005 µg/L 0.01 µg/L Below limit
PFNA <0.004 µg/L 0.01 µg/L Below limit
PFHxA <0.003 µg/L 3 µg/L Below limit
PFBA <0.005 µg/L 6 µg/L Below limit
11Cl-PF3OUdS <0.005 µg/L 0.005 µg/L Below limit
4:2 FTS <0.003 µg/L 0.003 µg/L Below limit
6:2 FTS <0.005 µg/L 0.005 µg/L Below limit
8:2 FTS <0.005 µg/L 0.005 µg/L Below limit
9Cl-PF3ONS <0.002 µg/L 0.002 µg/L Below limit
ADONA <0.003 µg/L 0.003 µg/L Below limit
PFBS <0.003 µg/L 0.003 µg/L Below limit
PFDA <0.003 µg/L 0.003 µg/L Below limit
PFDoA <0.003 µg/L 0.003 µg/L Below limit
PFHpA <0.003 µg/L 0.003 µg/L Below limit
PFHpS <0.003 µg/L 0.003 µg/L Below limit
PFOA <0.004 µg/L 0.004 µg/L Below limit
PFOS <0.004 µg/L 0.004 µg/L Below limit
PFPeA <0.003 µg/L 0.003 µg/L Below limit
PFTrDA <0.007 µg/L 0.007 µg/L Below limit
PFUnA <0.002 µg/L 0.002 µg/L Below limit

Water utilities serving ZIP 94515

Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.

Modeled boundaries are shown with a dashed outline.

Frequently Asked Questions about ZIP 94515 Tap Water

What's in ZIP 94515 tap water?

ZIP 94515 did not show contaminants above EPA health guidelines in the latest available dataset. The full table on this page lists every compound that was tested.

Who provides tap water in ZIP 94515?

Public records identify CALISTOGA, CITY OF as a primary water system associated with ZIP 94515. Service boundaries can vary by address, so confirm exact service with the utility.

When was ZIP 94515 tap water last tested?

The most recent test date used in this report is April 2025. EnviroClarity last refreshed this page on 2026-05-04.

Where can I find the official water quality report for ZIP 94515?

Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact CALISTOGA, CITY OF or visit their website for the latest official report covering ZIP 94515. The EPA also maintains a national CCR locator.

Do I still need a water filter in ZIP 94515?

Even when EPA-tracked compounds are within limits, some households use a certified filter for taste, odor, or to add a margin against trace contaminants below the reporting limit. Match any filter's certifications (NSF/ANSI 42, 53, 58, or P473) to the specific compounds you care about.

Primary source EPA UCMR5 (2023-2025)
Guideline source EPA drinking water standard (PFTrDA: 0,007 µg/L)
Last tested April 2025
Last page update 2026-05-04

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    Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.

    Add peace of mind → see certified filters for Calistoga