Fullerton Tap Water Quality Report
Fullerton's water has 2 contaminants above EPA MCLGs and 2 above EPA's legal limit (MCL, enforceable from April 26, 2029). We recommend using a certified water filter.
Other systems listed for Fullerton with results above guidelines: PAGE AVENUE MUTUAL WATER COMPANY (2 above guidelines)
People Served
141,874
Health-based violations since 2020
0
CITY OF FULLERTON. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Apr 2026 · CITY OF FULLERTON
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Fullerton Tap Water Safe to Drink?
We strongly recommend using a certified water filter to reduce exposure: Fullerton's water has 4 contaminants above EPA health-based guidelines. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Fullerton's water.
CITY OF FULLERTON, Fullerton's water system, serves 141,874 people. 1 other system is listed for Fullerton. Each system's results are listed under its own name, never added to CITY OF FULLERTON's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for CITY OF FULLERTON is from Apr 2026.
In EPA's 2023–2026 UCMR 5 testing, CITY OF FULLERTON measured lithium at up to 35.491 µg/L, which EPA counts as above its health reference level of 10 µg/L. That level is a screening value EPA uses to decide what to study further, not a legal limit, and this result does not change this page's water-quality summary.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in California
Fullerton Water Service Areas
What these numbers actually mean for Fullerton, CA
We read Fullerton, CA’s published record and send you a short report — which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 2 contaminants above EPA MCLGs and 2 above EPA's legal limit (MCL, enforceable from April 26, 2029)
- 39 results on file
- 23 PFAS compounds on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Fullerton's water
CITY OF FULLERTON
PWSID CA3010010
No fluoride level in our data for CITY OF FULLERTON. Your utility's annual water quality report (CCR) lists it.
PAGE AVENUE MUTUAL WATER COMPANY
PWSID CA3000585
No fluoride level in our data for PAGE AVENUE MUTUAL WATER COMPANY. Your utility's annual water quality report (CCR) lists it.
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Recommended Water Filters for Fullerton
Based on Fullerton's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA's health goals (MCLGs) or legal limits (MCL).
Culligan
ZeroWater
NSF Certified:
Flow Rate
1.9 gpm
Daily Production
1 gpd
Highlights:
- Compact design
- Easy to set up
- Affordable
- NSF-42, NSF-53, NSF-401 certified
Removes 19 contaminants:
+14 more
Strontium, Molybdenum, Fluoride, Uranium, Lead, Total PFAS, Chlorine, 25, Phosphorus, Bicarbonate, Calcium, Carbonate, Magnesium, Sodium
Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with “normal” faster faucet flow
Removes 1 contaminants:
Waterdrop
A1
NSF Certified:
Flow Rate
1 gpm
Highlights:
- Performance certified
- Lower price than Philips
- Hot water dispensing
- Compact design
Removes 5 contaminants:
Whirlpool Corporation
W11256135
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.7 gpm
Removes 19 contaminants:
+14 more
Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Tetrachloroethylene, Toxaphene, Turbidity
Verify Your Water Quality with Independent Testing
With 2 contaminants above EPA MCLGs and 2 above EPA's legal limit (MCL, enforceable from April 26, 2029), independent laboratory testing provides a second opinion and can track changes over time.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
PFAS Forever Chemicals Test
$339.95
Specialized test for PFOA, PFOS, and 24 other forever chemicals. Essential for areas near military bases, airports, or industrial sites.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
With 4 contaminants above health guidelines, you may want to explore water purification options. Learn how to make distilled water at home for applications like humidifiers, CPAP machines, and baby formula.
What Fullerton's water readings can explain
Utility-reported data for Fullerton includes a chlorine-based disinfectant — the readings behind these common tap water questions. We publish a city-level hardness figure for Fullerton, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Fullerton? Public-water results do not apply to private wells. See Orange County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Fullerton
Fullerton's tap water measures 10.2 grains per gallon (175.0 mg/L) — hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for 10.2 gpg water in Fullerton — equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs — equipment, installation labour and ten-year ownership, each separated out. For California as a whole, read water softener cost in California — priced against the plumber wage published for the state.
Frequently Asked Questions About Fullerton Tap Water
Fullerton's water has 2 contaminants above EPA MCLGs and 2 above EPA's legal limit (MCL, enforceable from April 26, 2029). We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Fullerton's water.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach CITY OF FULLERTON. For a problem with your water now (discolored water, no water, low pressure, a leak), contact CITY OF FULLERTON directly.
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