Green Valley Lake Tap Water Quality Report
Green Valley Lake's water record shows 5 contaminants with an EPA health goal detected in some samples (no level on file) and an EPA lead 90th percentile above the 15 ppb action level. We recommend using a certified water filter.
Water system
GREEN VALLEY MWC
People Served
3,062
Health-based violations since 2020
1
GREEN VALLEY MWC. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Dec 2024 ยท GREEN VALLEY MWC
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Green Valley Lake Tap Water Safe to Drink?
We strongly recommend using a certified water filter to reduce exposure: Green Valley Lake's water record shows 5 contaminants with an EPA health goal detected in some samples (no level on file) and an EPA lead 90th percentile above the 15 ppb action level. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Green Valley Lake's water.
GREEN VALLEY MWC, Green Valley Lake's water system, serves 3,062 people. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for GREEN VALLEY MWC is from Dec 2024.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in California
Green Valley Lake Water Service Areas

What these numbers actually mean for Green Valley Lake, CA
We read Green Valley Lake, 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.
- 5 contaminants with an EPA health goal detected in some samples (no level on file) and an EPA lead 90th percentile above the 15 ppb action level
- 111 results on file
- No PFAS results on record
Buying a home here? Property Water Report โ $49 Emailed within one business day.
Fluoride in Green Valley Lake's water
GREEN VALLEY MWC
PWSID CA3610023
GREEN VALLEY MWC reported no detectable fluoride.
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Recommended Water Filters for Green Valley Lake
Based on Green Valley Lake's water quality data, these NSF-certified filters are recommended to reduce lead (its water system's EPA lead 90th percentile is above the 15 ppb action level).

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

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

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)
Verify Your Water Quality with Independent Testing
With 5 contaminants with an EPA health goal detected in some samples (no level on file) and an EPA lead 90th percentile above the 15 ppb action level, 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
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 Green Valley Lake's water readings can explain
Utility-reported data for Green Valley Lake includes sulfate โ the readings behind these common tap water questions. We publish a city-level hardness figure for Green Valley Lake, 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 Green Valley Lake? Public-water results do not apply to private wells. See San Bernardino County well water testing and USGS risk data โ modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Green Valley Lake
Green Valley Lake's tap water measures 2.4 grains per gallon (41.7 mg/L) โ soft on the USGS scale, below the range where scale is usually worth treating.
Water softener cost for 2.4 gpg water in Green Valley Lake 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 Green Valley Lake Tap Water
Green Valley Lake's water record shows 5 contaminants with an EPA health goal detected in some samples (no level on file) and an EPA lead 90th percentile above the 15 ppb action level. 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 Green Valley Lake's water.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach GREEN VALLEY MWC. For a problem with your water now (discolored water, no water, low pressure, a leak), contact GREEN VALLEY MWC directly.
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