Marseilles Tap Water Quality Report
Marseilles's water record shows 5 contaminants above EPA MCLGs, 6 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.
1 other system serving parts of Marseilles reports results above guidelines — check which system bills you. MARSEILLES SOUTH (1 above guidelines)
People Served
5,061
Health-based violations since 2020
0
MARSEILLES. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jan 2025 · MARSEILLES
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Marseilles Tap Water Safe to Drink?
We strongly recommend using a certified water filter to reduce exposure: Marseilles's water record shows 5 contaminants above EPA MCLGs, 6 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 Marseilles's water.
MARSEILLES, Marseilles's water system, serves 5,061 people. 1 other system also serves parts of Marseilles. Each system's results are listed under its own name, never added to MARSEILLES's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for MARSEILLES is from Jan 2025.
In EPA's 2023–2026 UCMR 5 testing, MARSEILLES measured lithium at up to 42 µg/L, which EPA counts as above its health reference level of 10 µg/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 Illinois
Marseilles Water Service Areas
What these numbers actually mean for Marseilles, IL
We read Marseilles, IL’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, 6 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
- 113 results on file
- 23 PFAS compounds on record
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Recommended Water Filters for Marseilles
Based on Marseilles's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs and to reduce lead (its water system's EPA lead 90th percentile is above the 15 ppb action level).
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
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
Filters for what Marseilles reported
Verify Your Water Quality with Independent Testing
With 5 contaminants above EPA MCLGs, 6 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.
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 Marseilles's water readings can explain
Utility-reported data for Marseilles includes iron, manganese, sulfate and a chlorine-based disinfectant — the readings behind these common tap water questions. We publish a city-level hardness figure for Marseilles, 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 Marseilles? Public-water results do not apply to private wells. See LaSalle County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Marseilles
Marseilles's tap water has an estimated 18.8 grains per gallon (321.0 mg/L, county sampling in LaSalle County) — very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for an estimated 18.8 gpg water in Marseilles — 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 Illinois as a whole, read water softener cost in Illinois — priced against the plumber wage published for the state.
Frequently Asked Questions About Marseilles Tap Water
Marseilles's water record shows 5 contaminants above EPA MCLGs, 6 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 Marseilles's water.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach MARSEILLES. For a problem with your water now (discolored water, no water, low pressure, a leak), contact MARSEILLES directly.
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