East Foothills Tap Water Quality Report
East Foothills's water has 2 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
Other systems listed for East Foothills with results above guidelines: SANTA CLARA VALLEY WATER DISTRICT (2 above guidelines)
People Served
1,007,514
Health-based violations since 2020
1
SAN JOSE WATER. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Oct 2025 ยท SAN JOSE WATER
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is East Foothills 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. East Foothills's water has 2 contaminants above EPA health-based guidelines (MCLGs).
SAN JOSE WATER, East Foothills's water system, serves 1,007,514 people. 1 other system is listed for East Foothills. Each system's results are listed under its own name, never added to SAN JOSE WATER's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for SAN JOSE WATER is from Oct 2025.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in California
East Foothills Water Service Areas

What these numbers actually mean for East Foothills, CA
We read East Foothills, CAโs published record and send you a short report โ 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 16 contaminants with an EPA health goal detected in some samples (no level on file)
- 194 results on file
- 23 PFAS compounds on record
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Recommended Water Filters for East Foothills
Based on East Foothills'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 โnormalโ 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
Filters for what East Foothills reported
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
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.
What East Foothills's water readings can explain
Utility-reported data for East Foothills includes iron, turbidity, sulfate and a chlorine-based disinfectant โ the readings behind these common tap water questions. We publish a city-level hardness figure for East Foothills, 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 East Foothills? Public-water results do not apply to private wells. See Santa Clara County well water testing and USGS risk data โ modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in East Foothills
East Foothills's tap water measures 10.4 grains per gallon (178.0 mg/L) โ hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for 10.4 gpg water in East Foothills โ 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 โ equipment, installation labour and ten-year ownership, each separated out. For California as a whole, read water softener cost in California โ priced against the plumber wage published for the state.
Frequently Asked Questions About East Foothills Tap Water
East Foothills's water has 2 contaminants above EPA MCLGs. 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 SAN JOSE WATER. For a problem with your water now (discolored water, no water, low pressure, a leak), contact SAN JOSE WATER directly.
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