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Groups of metal with existing standards.
| More than 99% of metal concentrations less than both GELs and MCLs |
At least 1% of metal concentrations larger than GEL, or MCL, or both |
|
|---|---|---|
| No significant difference found among permeable pavements | Group II: As, Cd, Pb, Sb | |
| Significant difference found among permeable pavements | Group I: Ba, Cr, Cu, Mn, Ni, Zn | Group III: Al, Fe |
