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Green Book

Lead (1978) Maintenance Area (Redesignated from Nonattainment) Summary

As of September 22, 2016
Number of Areas Number of Counties 2010 Population
11 10 2,199,645

County subtotals and grand totals may not equal sum of parts. Part counties are only counted one time within groupings. Multi-state nonattainment areas are not considered maintenance areas until all states in the area have been redesignated

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