Tap Water Results

Is Calumet City, 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 Calumet City Water System. 2 PFAS were detected below the limits.

2 public water systems serve parts of Calumet City. The largest, Calumet City Water System, serves 37,000 people. Your water bill names your system.

Largest system

Calumet City Water System

37,000 people · Purchased surface water · EPA ID IL0310390

Buys treated water from Hammond Water Works Department, City of Chicago Department of Water Management.

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: 11 ppb at the 90th percentile (Jun 2026, and 9 in 10 homes sampled were at or below it) Near 2027 action level
Health-based violations since 2016: 2

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.

Calumet City homes and lead pipes

83%
of homes built before 1980 (Illinois 64%, US 50%)
19%
built before 1950 (Illinois 26%)
44%
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. Renting? Ask your landlord what the service line is made of, because it's their pipe to replace. How to check your own line.

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

Other water systems serving Calumet City

  • River Oaks Estates MHP
    677 people · Purchased surface water · Illinois · lists this city
    Not in EPA's PFAS sample

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Lansing 2 mi
Lansing Water System
Lansing Water SystemNone above limits5.5 ppb
Chicago Heights 8 mi
Chicago Heights Water System
Chicago Heights Water SystemNone above limits5.86 ppb
Oak Forest 11 mi
Oak Forest Water System
Oak Forest Water SystemNone above limits0 ppb
Oak Lawn 14 mi
Oak Lawn Water System
Oak Lawn Water SystemNone above limits9.3 ppb
Tinley Park 14 mi
Tinley Park Water System
Tinley Park Water SystemNone above limits0 ppb
Burbank 16 mi
South Stickney Sanitary District
South Stickney Sanitary DistrictNone above limits3.06 ppb
Calumet City ZIP codes (1)
  • 60409

Questions

Is Calumet City tap water safe to drink?

Calumet City Water System had 2 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 Calumet City, IL?

2 public water systems serve parts of Calumet City. The largest is Calumet City Water System (37,000 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Calumet City tap water have PFAS?

Calumet City Water System had 2 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.

Do Calumet City homes have lead pipes?

Census estimates put 83% of Calumet City 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. Calumet City 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.