Tap Water Results

Is Orland Park, IL tap water safe?

Data: U.S. EPA · How we read the data · How we check it

Summary

No federal limits exceeded in EPA data for Orland Park Water System.

3 public water systems serve parts of Orland Park. The largest, Orland Park Water System, serves 58,020 people. Your water bill names your system.

Largest system

Orland Park Water System

58,020 people · Purchased surface water · EPA ID IL0312310

Buys treated water from Oak Lawn Water System.

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
Not detected
–4 pptNot detected
PFHxS
Not detected
–10 pptNot detected
PFNA
Not detected
–10 pptNot detected
HFPO-DA (GenX)
Not detected
–10 pptNot detected

ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.

Lead: 0 ppb at the 90th percentile (Dec 2025, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0

Full Orland Park Water System results

Across Illinois, 13 of 479 water systems EPA tested had PFAS above a 2024 federal limit, and 18 systems were above the lead action level in results from the last five years. Illinois results.

Orland Park homes and lead pipes

30%
of homes built before 1980 (Illinois 64%, US 50%)
4%
built before 1950 (Illinois 26%)
14%
of households rent (Illinois 33%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.

Housing: Census American Community Survey 2020–2024 5-year estimates for Orland Park village (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Orland Park

  • Illinois American Water – Homer Township
    24,543 people · Purchased surface water · Illinois · reported ZIPs here
    No PFAS above limits
  • Illinois American Water – Fernway
    5,521 people · Purchased surface water · Illinois · reported ZIPs here
    No PFAS above limits

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Tinley Park 4 mi
Tinley Park Water System
Tinley Park Water SystemNone above limits0 ppb
Oak Forest 5 mi
Oak Forest Water System
Oak Forest Water SystemNone above limits0 ppb
New Lenox 9 mi
New Lenox Water System
New Lenox Water SystemNone above limits0 ppb
Lockport 9 mi
Illinois American Water – Homer Township
Illinois American Water – Homer TownshipNone above limits0 ppb
Oak Lawn 9 mi
Oak Lawn Water System
Oak Lawn Water SystemNone above limits9.3 ppb
Burbank 11 mi
South Stickney Sanitary District
South Stickney Sanitary DistrictNone above limits3.06 ppb
Orland Park ZIP codes (2)
  • 60462
  • 60467

Questions

Is Orland Park tap water safe to drink?

Orland Park Water System has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.

Who supplies water in Orland Park, IL?

3 public water systems serve parts of Orland Park. The largest is Orland Park Water System (58,020 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Orland Park tap water have PFAS?

None detected above EPA's reporting limits. Orland Park Water System had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.

Do Orland Park homes have lead pipes?

Census estimates put 30% of Orland Park homes as built before 1980 (Illinois: 64%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Orland Park Water System's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.