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21st+Century+Charter+School-+High+School

Monday, May 18, 2026

Location Details

724 Washington St
Gary,  IN  46402

What do these numbers mean?

These Lead Results are in parts per billion (ppb). For reference, 1 ppb would be 1 part of lead for every billion parts of water (roughly one drop of water in an olympic-sized swimming pool). If the result is 0.5 ppb, this means the lab could not detect lead in the sample.

The results in red were above our remediation threshold. Finding lead sources takes time and can be complicated. You can see what remediation measures were taken in the Remediation column.

Check out the CDC's website to learn more about lead in drinking water.

10

Fixtures Tested

16

Samples Analyzed

0

Active Exceedances
Fixture Code
Fixture Type
Fixture Location
Lead Result
Remediation Action
Collection Date
108Water CoolerUpper Hall1 ppb--2018-3-27
502Faucet, Hotkitchen1 ppb--2018-3-27
501Faucet, Coldkitchen1 ppb--2018-3-27
107Faucet, HotKitchen1 ppb--2018-3-27
106Faucet, ColdKitchen1 ppb--2018-3-27
105SprayerKitchen2.50 ppb--2018-3-27
104Water CoolerMain Hall1 ppb--2018-3-27
103Water CoolerMain Hall1 ppb--2018-3-27
102OtherRm 35211 ppb--2018-3-27
101Faucet, ColdRm 35211 ppb--2018-3-27