Coalinga Tap Water Quality Report
Coalinga's water has 2 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
Other systems listed for Coalinga with results above guidelines: HARRIS FEEDING COMPANY (2 above guidelines), HARRIS FARMS/HORSE BARN (2 above guidelines), HARRIS FARMS HEADQUARTERS (2 above guidelines), HARRIS FARMS SOUTH #101-144 (2 above guidelines)
People Served
17,277
Health-based violations since 2020
0
COALINGA-CITY. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
May 2025 · COALINGA-CITY
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Coalinga Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. Coalinga's water has 2 contaminants above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
COALINGA-CITY, Coalinga's water system, serves 17,277 people. 4 other systems are listed for Coalinga. Each system's results are listed under its own name, never added to COALINGA-CITY's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for COALINGA-CITY is from May 2025.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in California
Coalinga Water Service Areas
What these numbers actually mean for Coalinga, CA
We read Coalinga, 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 4 contaminants with an EPA health goal detected in some samples (no level on file)
- 69 results on file
- 23 PFAS compounds on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Coalinga's water
COALINGA-CITY
PWSID CA1010004
COALINGA-CITY reported 0.68 mg/L, below the 0.7 mg/L U.S. Public Health Service recommendation.
HARRIS FARMS HEADQUARTERS
PWSID CA1009027
No fluoride level in our data for HARRIS FARMS HEADQUARTERS. Your utility's annual water quality report (CCR) lists it.
HARRIS FEEDING COMPANY
PWSID CA1009078
No fluoride level in our data for HARRIS FEEDING COMPANY. Your utility's annual water quality report (CCR) lists it.
HARRIS FARMS SOUTH #101-144
PWSID CA1009028
No fluoride level in our data for HARRIS FARMS SOUTH #101-144. Your utility's annual water quality report (CCR) lists it.
HARRIS FARMS/HORSE BARN
PWSID CA1000213
No fluoride level in our data for HARRIS FARMS/HORSE BARN. Your utility's annual water quality report (CCR) lists it.
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Recommended Water Filters for Coalinga
Based on Coalinga's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
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
Test Your Water Quality
Professional laboratory testing provides accurate, detailed analysis of your drinking water.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
What Coalinga's water readings can explain
Utility-reported data for Coalinga includes sulfate and a chlorine-based disinfectant — the readings behind these common tap water questions. We publish a city-level hardness figure for Coalinga, 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 Coalinga? Public-water results do not apply to private wells. See Fresno County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Coalinga
Coalinga's tap water measures 6.9 grains per gallon (118.0 mg/L) — moderately hard on the USGS scale, below the range where scale is usually worth treating.
Water softener cost for 6.9 gpg water in Coalinga — 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 Coalinga Tap Water
Coalinga's water has 2 contaminants above EPA MCLGs. While the water meets federal legal limits, we recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach COALINGA-CITY. For a problem with your water now (discolored water, no water, low pressure, a leak), contact COALINGA-CITY directly.
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