The recommended action level for lead is 0.015 milligrams per liter (mg/L).
| BUILDING | No. of Test Locations | Highest Results | Retest Required | Retest Results | Mitigation Notes |
| Buehrle School | 3 | 0.005 mg/L | No | | |
| Burrowes Elementary | 4 | 0.096 mg/L | Yes | 0.004 mg/L | Flushed |
| Carter & MacRae Elementary | 4 | 0.002 mg/L | No | | |
| E.R. Martin School | 4 | <0.001 mg/L | No | | |
| Full Circle Learning/Scheffey | 4 | <0.001 mg/L | No | | |
| Fulton Elementary | 5 | <0.001 mg/L | No | | |
| Hamilton Elementary | 4 | 0.026 mg/L | Yes | 0.002 mg/L | Flushed |
| Jackson Middle | 5 | 0.003 mg/L | No | | |
| King Elementary | 4 | 0.007 mg/L | No | | |
| Lafayette Elementary | 4 | 0.006 mg/L | No | | |
| Lincoln Middle | 4 | <0.001 mg/L | No | | |
| McCaskey-East | 8 | 0.003 mg/L | No | | |
| McCaskey-JP | 7 | 0.068 mg/L | Yes | 0.010 mg/L | Flushed |
| Phoenix Academy | 5 | 0.003 mg/L | No | | |
| Price Elementary | 4 | 0.005 mg/L | No | | |
| Reynolds Middle | 5 | 0.009 mg/L | No | | |
| Rockland Center | 3 | 0.009 mg/L | No | | |
| Ross Elementary | 4 | 0.005 mg/L | No | | |
| Smith-Wade-El Elementry | 4 | 0.002 mg/L | No | | |
| Washington Elementary | 4 | 0.003 mg/L | No | | |
| Wharton Elementary | 6 | 0.006 mg/L | No | | |
| Wheatland Middle | 4 | 0.08 mg/L | No | | |
| Wickersham (West) Elementary | 4 | 0.010 mg/L | No | | |
Lead Testing Results: 2021-2022
| BUILDING | No. of Test Locations | Highest Results | Retest Required | Retest Results | Mitigation Notes |
| Buehrle School | 1 | <0.001 mg/L | No | | |
| Burrowes Elementary | 3 | 0.003 mg/L | No | | |
| Carter & MacRae Elementary | 4 | 0.004 mg/L | No | | |
| E.R. Martin School | 25 | 0.005 mg/L | No | | |
| Full Circle Learning/Scheffey | 3 | 0.005 mg/L | No | | |
| Fulton Elementary | 6 | <0.001 mg/L | No | | |
| Hamilton Elementary | 7 | 0.196 mg/L | Yes | 0.012 mg/L | Flushed |
| Jackson Middle | 8 | <0.001 mg/L | No | | |
| King Elementary | 12 | .016 mg/L | Yes | 0.003 mg/L | Flushed |
| Lafayette Elementary | 24 | .031 mg/L | Yes | 0.009 mg/L | Flushed |
| Lincoln Middle | 6 | <0.001 mg/L | No | | |
| McCaskey-East | 6 | <0.001 mg/L | No | | |
| McCaskey-JP | 16 | <0.001 mg/L | No | | |
| Phoenix Academy | 5 | 0.176 mg/L | Yes | 0.013 mg/L | Flushed |
| Price Elementary | 18 | 0.036 mg/L | Yes | ND | Flushed |
| Reynolds Middle | 4 | <0.001 mg/L | No | | |
| Rockland Center | 10 | 0.016 mg/L | Yes | ND | Flushed |
| Ross Elementary | 14 | 0.007 mg/L | No | | |
| Smith-Wade-El Elementry | 20 | 0.009 mg/L | No | | |
| Washington Elementary | 21 | 0.006 mg/L | No | | |
| Wharton Elementary | 16 | 0.002 mg/L | No | | |
| Wheatland Middle | 5 | 0.013 mg/L | Yes | 0.013 mg/L | Flushed |
| Wickersham (West) Elementary | 7 | 0.024 mg/L | Yes | 0.013 mg/L | Flushed |
Lead Testing Results: 2019-2020
| BUILDING | No. of Test Locations | Highest Result (mg/L) | Retest Required | Retest Results (mg/L) | Mitigation |
| Buchanan Elementary | 6 | 0.077 | No | | Sink was removed and no longer in service |
| Buehrle School | 3 | 1.09 | Yes | <0.001 | Installed new lead free water fountain with bottle filler |
| Burrowes Elementary | 15 | 0.037 | Yes | <0.001 | Installed water filters at sink |
| Carter & MacRae Elementary | 22 | 0.011 | No | | |
| Fulton Elementary | 18 | 0.014 | No | | |
| Hamilton Elementary | 5 | 0.055 | Yes | <0.001 | Installed water filter at fountain in cafeteria |
| King Elementary | 11 | 0.006 | Yes | <0.001 | Installed new water fountain with bottle filler in cafeteria |
| Lafayette Elementary | 4 | 0.006 | No | | |
| Lincoln Middle | N/A | N/A | | | No testing due to building construction |
| E.R. Martin School | 18 | 0.05 | Yes | <0.001 | Remainder of water sources tested at <0.015 after being flushed |
| McCaskey-JP | 16 | 0.01 | No | | |
| McCaskey-East | 16 | 0.2 | Yes | <0.001 | Remainder of water sources tested at <0.015 after being flushed |
| Phoenix Academy | 7 | 0.083 | Yes | <0.001 | Remainder of water sources tested at <0.015 after being flushed |
| Price Elementary | 18 | 0.134 | Yes | <0.001 | Replaced all copper lines and fixtures at sinks, installed water filters at sinks, changed out water fountain at gymnasium with new fountain |
| Rockland Center | 18 | 0.008 | No | | |
| Ross Elementary | 5 | 0.006 | No | | |
| Lincoln Annex/Scheffey Building | 8 | 0.007 | No | | |
| Southeast Middle | 16 | 0.015 | Yes | <0.001 | Remainder of water sources tested at <0.015 after being flushed |
| Washington Elementary | 17 | 0.004 | No | | |
| Wharton Elementary | 7 | 0.005 | No | | |
| Wheatland Middle | 15 | 0.21 | Yes | <0.001 | Installed new water fountain with bottle filler in cafeteria |
| Wickersham Elementary | 7 | 0.108 | Yes | <0.001 | Installed water filter at fountain in cafeteria |
Lead Testing Results: 2018-2019
| BUILDING | No. of Test Locations | Highest Results | Retest Required |
| James Buchanan | 4 | 0.003 | No |
| Robert Buehrle | 4 | 0.005 | No |
| Thomas Burrowes | 4 | 0.004 | No |
| Carter & MacRae | 4 | 0.001 | No |
| Robert Fulton | 4 | 0.001 | No |
| James Hamilton | 4 | 0.005 | No |
| Martin Luther King1 | 4 | 0.015 | Yes |
| Lafayette | 4 | 0.001 | No |
| Abraham Lincoln | 4 | 0.003 | No |
| Elizabeth Martin | 4 | 0.001 | No |
| JP. McCaskey | 4 | 0.001 | No |
| JP. McCaskey East | 4 | 0.001 | No |
| Phoenix Academy | 4 | 0.002 | No |
| John Price2 | 4 | 0.169 | Yes |
| Rockland Center | 4 | 0.003 | No |
| George Ross | 4 | 0.001 | No |
| R. Scheffey/Linc. Annex | 4 | 0.001 | No |
| Southeast | 4 | 0.001 | No |
| George Washington | 4 | 0.001 | No |
| Thomas Wharton | 4 | 0.001 | No |
| Wheatland | 4 | 0.002 | No |
| James Wickersham | 4 | 0.007 | No |
1 At King Elementary, testing showed levels above the recommended action level in a hand-washing sink in the faculty lounge. The sink fixtures were replaced.
2 At Price Elementary, testing showed levels above the recommended action level in about half of the classroom sinks. (Parents/guardians of price students were notified which classrooms were affected.) The school shut down the contaminated sinks and provided bottled water for student consumption until a solution was determined. All water outlets were subsequently fitted with lead filters.
