Foristell Tap Water Quality Report
Foristell's water has 5 contaminants above EPA MCLGs. We recommend using a certified water filter.
Other systems listed for Foristell with results above guidelines: ST CHARLES COUNTY PWSD 2 WARREN (4 above guidelines)
People Served
550
Health-based violations since 2020
0
ST CHARLES PWSD 2 FORISTELL. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Dec 2020 · ST CHARLES PWSD 2 FORISTELL
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Foristell Tap Water Safe to Drink?
We strongly recommend using a certified water filter to reduce exposure: Foristell's water has 5 contaminants above EPA health-based guidelines. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Foristell's water.
ST CHARLES PWSD 2 FORISTELL, Foristell's water system, serves 550 people. 1 other system is listed for Foristell. Each system's results are listed under its own name, never added to ST CHARLES PWSD 2 FORISTELL's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for ST CHARLES PWSD 2 FORISTELL is from Dec 2020.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Missouri
Foristell Water Service Areas
What these numbers actually mean for Foristell, MO
We read Foristell, MO’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.
- 5 contaminants above EPA MCLGs and 1 contaminant with an EPA health goal detected in some samples (no level on file)
- 104 results on file
- No PFAS results on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Foristell's water
ST CHARLES COUNTY PWSD 2 WARREN
PWSID MO6024629
ST CHARLES COUNTY PWSD 2 WARREN reported 1.39 mg/L, at or above the 0.7 mg/L U.S. Public Health Service recommendation and below the 1.5 mg/L WHO guideline value and NTP neurodevelopment review level.
ST CHARLES PWSD 2 FORISTELL
PWSID MO6010287
ST CHARLES PWSD 2 FORISTELL reported 1.5 mg/L, at or above the 1.5 mg/L WHO guideline value and NTP neurodevelopment review level and below the 2.0 mg/L EPA secondary standard.
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Recommended Water Filters for Foristell
Based on Foristell's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
Solventum Purification Inc.
3MRO401
NSF Certified:
Daily Production
11.48 gpd
Highlights:
- NSF-58 certified reverse osmosis system
- 11.48 GPD production capacity
- Reduces total dissolved solids (TDS) for purer water
Removes 15 contaminants:
+10 more
Copper, Cryptosporidium, Fluoride, Lead, Radium 226, Radium 228, Radium, combined (-226 & -228), Selenium, Total Dissolved Solids, Turbidity
Solventum Purification Inc.
3MRO301
NSF Certified:
Daily Production
11.48 gpd
Highlights:
- NSF-58 certified reverse osmosis system
- 11.48 GPD production capacity
- Reduces total dissolved solids (TDS) for purer water
Removes 15 contaminants:
+10 more
Copper, Cryptosporidium, Fluoride, Lead, Radium 226, Radium 228, Radium, combined (-226 & -228), Selenium, Total Dissolved Solids, Turbidity
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:
Verify Your Water Quality with Independent Testing
With 5 contaminants above EPA MCLGs and 1 contaminant with an EPA health goal detected in some samples (no level on file), 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
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
With 5 contaminants above health guidelines, you may want to explore water purification options. Learn how to make distilled water at home for applications like humidifiers, CPAP machines, and baby formula.
What Foristell's water readings can explain
Utility-reported data for Foristell includes iron, manganese and sulfate — the readings behind these common tap water questions. We publish a city-level hardness figure for Foristell, 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 Foristell? Public-water results do not apply to private wells. See St. Charles County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Foristell
Foristell's tap water measures 16.6 grains per gallon (284.4 mg/L) — very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for 16.6 gpg water in Foristell — 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 Missouri as a whole, read water softener cost in Missouri — priced against the plumber wage published for the state.
Frequently Asked Questions About Foristell Tap Water
Foristell's water has 5 contaminants above EPA MCLGs. 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 Foristell's water.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach ST CHARLES PWSD 2 FORISTELL. For a problem with your water now (discolored water, no water, low pressure, a leak), contact ST CHARLES PWSD 2 FORISTELL directly.
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