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Granite City Tap Water Quality Report
Granite City's water has 2 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
Other systems listed for Granite City with results above guidelines: PONTOON BEACH PWD (2 above guidelines)
People Served
37,639
Health-based violations since 2020
0
IL AMERICAN-GRANITE CITY. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jul 2025 · IL AMERICAN-GRANITE CITY
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Granite City 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. Granite City's water has 2 contaminants above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
IL AMERICAN-GRANITE CITY, Granite City's water system, serves 37,639 people. 1 other system is listed for Granite City. Each system's results are listed under its own name, never added to IL AMERICAN-GRANITE CITY's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for IL AMERICAN-GRANITE CITY is from Jul 2025.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Illinois
Granite City Water Service Areas
What these numbers actually mean for Granite City, IL
We read Granite City, 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.
- 2 contaminants above EPA MCLGs and 8 contaminants with an EPA health goal detected in some samples (no level on file)
- 121 results on file
- 23 PFAS compounds on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Granite City's water
IL AMERICAN-GRANITE CITY
PWSID IL1195030
IL AMERICAN-GRANITE CITY reported 0.83 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.
PONTOON BEACH PWD
PWSID IL1195300
No fluoride level in our data for PONTOON BEACH PWD. Your utility's annual water quality report (CCR) lists it.
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Recommended Water Filters for Granite City
Based on Granite City'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 “normal” 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 Granite City 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
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.
What Granite City's water readings can explain
Utility-reported data for Granite City includes sulfate and a chlorine-based disinfectant — the readings behind these common tap water questions. We publish a city-level hardness figure for Granite City, 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 Granite City? Public-water results do not apply to private wells. See Madison County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Granite City
Granite City's tap water measures 9.2 grains per gallon (157.0 mg/L) — hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for 9.2 gpg water in Granite City — 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 Granite City Tap Water
Granite City's water has 2 contaminants above EPA MCLGs. While the water meets federal legal limits, 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 IL AMERICAN-GRANITE CITY. For a problem with your water now (discolored water, no water, low pressure, a leak), contact IL AMERICAN-GRANITE CITY directly.
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