Water Quality Report · Updated May 12, 2026
ORLAND PARK
ORLAND PARK delivers tap water graded C (65/100) by TapWaterSafety.org. The utility serves approximately 58,020 residents in ORLAND PARK, Illinois using surface water (purchased). The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Bromodichloromethane significantly above health guideline. For questions, the utility can be reached at 708-403-6350.
Is ORLAND PARK tap water safe to drink?
ORLAND PARK delivers tap water that earns a grade of C (65/100) from TapWaterSafety.org — an average rating, with several contaminants above health guidelines but generally compliant with US legal limits.
The utility serves 58,020 residents in ORLAND PARK, drawing from surface water (purchased).
Public testing data identifies 10 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Bromodichloromethane, Haloacetic acids (HAA5), Trichloroacetic acid, Chloroform, Dibromochloromethane, Dichloroacetic acid, Dibromoacetic acid, Chromium (hexavalent). For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
Quick actions for ORLAND PARK residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for ORLAND PARK.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 24.4 ppb, 407x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 42.2 ppb, 281x above the EWG health guideline of 0.15 ppb.
Bromodichloromethane significantly above health guideline
Moderate concernBromodichloromethane detected at 11.4 ppb, 190x above the EWG health guideline of 0.06 ppb.
Contact ORLAND PARK
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for ORLAND PARK
Filters matched to the specific contaminants in this water supply.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 65/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
24.4 ppb | 0.06 | — | — | — | — | — | 407× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
42.2 ppb | 0.15 | 80.0 | 100 | — | — | — | 281× over |
| Bromodichloromethane Disinfection byproduct |
11.4 ppb | 0.06 | — | — | — | — | — | 190× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
18.5 ppb | 0.1 | 60.0 | 60 | — | — | — | 185× over |
| Trichloroacetic acid Disinfection byproduct |
7.73 ppb | 0.1 | — | — | — | — | — | 77× over |
| Chloroform Disinfection byproduct |
24.6 ppb | 0.4 | — | — | — | — | — | 62× over |
| Dibromochloromethane Disinfection byproduct |
6.02 ppb | 0.1 | — | — | — | — | — | 60× over |
| Dichloroacetic acid Disinfection byproduct |
8.85 ppb | 0.2 | — | — | — | — | — | 44× over |
| Dibromoacetic acid Disinfection byproduct |
1.29 ppb | 0.03 | — | — | — | — | — | 43× over |
| Chromium (hexavalent) Heavy metal |
0.201 ppb | 0.02 | — | — | — | — | — | 10× over |
| Bromoform Disinfection byproduct |
0.125 ppb | 0.5 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
0.988 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.288 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.268 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.334 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Manganese* Heavy metal |
0.0613 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Strontium Radiological |
0.12 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| 2-propen-1-ol * Other |
0.15 ppb | — | — | — | — | — | — | Below guideline |
| 4-Androstene-3,17-dione Other |
0.075 ppt | — | — | — | — | — | — | Below guideline |
| Quinoline Other |
0.00575 ppb | — | — | — | — | — | — | Below guideline |
| Testosterone Other |
0.108 ppt | — | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
ORLAND PARK service area
This water system serves 1 community in Cook County, Illinois. Click any city for its dedicated tap water quality page.
Find the right filter for ORLAND PARK water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.