Oakbrook Terrace Tap Water Quality Report
Oakbrook Terrace's water has 2 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
No single water system serves most of Oakbrook Terrace (2,729 residents, Census 2024 estimate). Its large systems are OAKBROOK TERRACE (EPA counts 1,440 people served, about 53% of Oakbrook Terrace's population); VILLA PARK (EPA counts 22,263 people served, more than Oakbrook Terrace's population). EPA's counts may include people served outside Oakbrook Terrace, so each share is at most that. Check which one bills you: each system's figures are shown separately below.
- OAKBROOK TERRACE: 14 contaminants tested, 2 above EPA MCLGs; health-based violations since 2020: 0
- VILLA PARK: 37 contaminants tested, 2 above EPA MCLGs; health-based violations since 2020: 0
Other systems listed for Oakbrook Terrace with results above guidelines: VILLA PARK (2 above guidelines)
Water systems
2 large systems
Residents (Census 2024)
2,729
Health-based violations since 2020
0
OAKBROOK TERRACE. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Apr 2024 · OAKBROOK TERRACE
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Oakbrook Terrace 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. Oakbrook Terrace's water has 2 contaminants above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
OAKBROOK TERRACE, Oakbrook Terrace's water system, serves 1,440 people. 1 other system is listed for Oakbrook Terrace. Each system's results are listed under its own name, never added to OAKBROOK TERRACE's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for OAKBROOK TERRACE is from Apr 2024.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Illinois
Oakbrook Terrace Water Service Areas
What these numbers actually mean for Oakbrook Terrace, IL
We read Oakbrook Terrace, 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
- 12 results on file
- No PFAS results on record
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Recommended Water Filters for Oakbrook Terrace
Based on Oakbrook Terrace'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
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.
On a private well near Oakbrook Terrace? Public-water results do not apply to private wells. See DuPage County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Frequently Asked Questions About Oakbrook Terrace Tap Water
Oakbrook Terrace'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 OAKBROOK TERRACE. For a problem with your water now (discolored water, no water, low pressure, a leak), contact OAKBROOK TERRACE directly.
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