Denair Tap Water Quality Report
Denair's water has 1 contaminant above EPA MCLGs. Consider using a certified water filter for additional protection.
Water system
DENAIR COMMUNITY SERVICES DISTRICT
People Served
5,282
Health-based violations since 2020
0
DENAIR COMMUNITY SERVICES DISTRICT. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Aug 2021 · DENAIR COMMUNITY SERVICES DISTRICT
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Denair 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. Denair's water has 1 contaminant above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
DENAIR COMMUNITY SERVICES DISTRICT, Denair's water system, serves 5,282 people. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for DENAIR COMMUNITY SERVICES DISTRICT is from Aug 2021.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in California
Denair Water Service Areas
What these numbers actually mean for Denair, CA
We read Denair, 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.
- 1 contaminant above EPA MCLGs and 1 contaminant with an EPA health goal detected in some samples (no level on file)
- 122 results on file
- 23 PFAS compounds on record
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Recommended Water Filters for Denair
Based on Denair's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
AquaTru
Classic
NSF Certified:
Flow Rate
0.04 gpm
Daily Production
600 gpd
Highlights:
- Best overall contaminant reduction score
- Most performance certifications
- Lifetime warranty
- NSF-42, NSF-53, NSF-58, NSF-401 certified
Removes 23 contaminants:
+18 more
Molybdenum, Barium, Chlorine, Arsenic, 83+ contaminants, Calcium, Chloride, Copper, Magnesium, Nitrate, Phosphorus, Sodium, Sulfate, Total Dissolved Solids, Zinc, Total THMs, Chloroform, Nitrate (as N)
AquaTru
Carafe
NSF Certified:
Flow Rate
0.3 gpm
Daily Production
4 gpd
Highlights:
- Verified PFAS reduction
- Glass collection vessel
- Plug-and-play installation
- NSF-53, NSF-42, NSF-58, NSF-401, NSF-372 certified
Removes 17 contaminants:
+12 more
Arsenic, 83+ contaminants, Copper, Total THMs, Chloroform, Chloride, Sulfate, Nitrate (as N), Molybdenum, Barium, Strontium, Uranium
Waterdrop
G3 P600
NSF Certified:
Flow Rate
600 gpm
Daily Production
600 gpd
Highlights:
- Space-saving design
- Good contaminant reduction
- NSF-58 certified
Removes 4 contaminants:
Waterdrop
G3 P800
NSF Certified:
Flow Rate
800 gpm
Daily Production
800 gpd
Highlights:
- High water production rate
- Modern design
- No tank needed
- NSF-42, NSF-53, NSF-58, NSF-372 certified
Removes 15 contaminants:
+10 more
Chlorine, Copper, Manganese, Potassium, Selenium, Total Dissolved Solids, Nitrate, Chloride, Sodium, Strontium
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 Denair's water readings can explain
Utility-reported data for Denair includes turbidity and sulfate — the readings behind these common tap water questions. We publish a city-level hardness figure for Denair, 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 Denair? Public-water results do not apply to private wells. See Stanislaus County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Denair
Denair'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 Denair — 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 Denair Tap Water
Denair's water has 1 contaminant 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 DENAIR COMMUNITY SERVICES DISTRICT. For a problem with your water now (discolored water, no water, low pressure, a leak), contact DENAIR COMMUNITY SERVICES DISTRICT directly.
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