Hemet Tap Water Quality Report
Hemet's water record shows 6 contaminants with an EPA health goal detected in some samples (no level on file) and 1 nitrate reading above 10 mg/L whose basis is unconfirmed (above EPA's limit if measured as nitrogen, within it if measured as nitrate). Consider using a certified water filter for additional protection.
No single water system serves most of Hemet (92,912 residents, Census 2024 estimate). Its large systems are HEMET, CITY OF (EPA counts 32,600 people served, about 35% of Hemet's population); EASTERN MUNICIPAL WD (EPA counts 624,372 people served, more than Hemet's population); LAKE HEMET MWD (EPA counts 52,913 people served, about 57% of Hemet's population). EPA's counts may include people served outside Hemet, so each share is at most that. Check which one bills you: each system's figures are shown separately below.
- HEMET, CITY OF: 178 contaminants tested, 0 above EPA MCLGs; health-based violations since 2020: 0
- EASTERN MUNICIPAL WD: 237 contaminants tested, 2 above EPA MCLGs; health-based violations since 2020: 0
- LAKE HEMET MWD: 40 contaminants tested, 0 above EPA MCLGs; health-based violations since 2020: 1
Other systems listed for Hemet with results above guidelines: BAUTISTA CC NO. 36 (2 above guidelines), EASTERN MUNICIPAL WD (2 above guidelines)
Water systems
3 large systems
Residents (Census 2024)
92,912
Health-based violations since 2020
0
HEMET, CITY OF. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Feb 2023 ยท HEMET, CITY OF
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Hemet 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. Hemet's water record shows 6 contaminants with an EPA health goal detected in some samples (no level on file) and 1 nitrate reading above 10 mg/L whose basis is unconfirmed (above EPA's limit if measured as nitrogen, within it if measured as nitrate).
HEMET, CITY OF, Hemet's water system, serves 32,600 people. 5 other systems are listed for Hemet. Each system's results are listed under its own name, never added to HEMET, CITY OF's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for HEMET, CITY OF is from Feb 2023.
In EPA's 2023โ2026 UCMR 5 testing, HEMET, CITY OF measured lithium at up to 16 ยตg/L, which EPA counts as above its health reference level of 10 ยตg/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
Hemet Water Service Areas

What these numbers actually mean for Hemet, CA
We read Hemet, 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.
- 6 contaminants with an EPA health goal detected in some samples (no level on file) and 1 nitrate reading above 10 mg/L whose basis is unconfirmed (above EPA's limit if measured as nitrogen, within it if measured as nitrate)
- 36 results on file
- 23 PFAS compounds on record
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General-Purpose Water Filters for Hemet
Hemet's results show no result above EPA's health goals or legal limits, so these are general-purpose NSF/ANSI 53 certified filters, not chosen for any contaminant.

Pentair Residential Filtration, LLC
Everpure Residential H-300-NXT
NSF Certified:
Capacity
3001 gal
Filter Life
10 mo
Flow Rate
0.5 gpm
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

Whirlpool Corporation
W11569861
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.52 gpm
Removes 22 contaminants:
+17 more
Atrazine, Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Styrene, Tetrachloroethylene, Toxaphene, Trichloroethylene, Turbidity

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:
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 Hemet's water readings can explain
We publish a city-level hardness figure for Hemet, 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 Hemet? Public-water results do not apply to private wells. See Riverside County well water testing and USGS risk data โ modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Hemet
Hemet's tap water has an estimated 10.9 grains per gallon (186.0 mg/L, county sampling in Riverside County) โ very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for an estimated 10.9 gpg water in Hemet 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 Hemet Tap Water
Hemet's water record shows 6 contaminants with an EPA health goal detected in some samples (no level on file) and 1 nitrate reading above 10 mg/L whose basis is unconfirmed (above EPA's limit if measured as nitrogen, within it if measured as nitrate). 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 HEMET, CITY OF. For a problem with your water now (discolored water, no water, low pressure, a leak), contact HEMET, CITY OF directly.
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