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Legend (TPI_GL/ImpSurf)

Percent Impervious Surface by 12 Digit Watershed (NLCD 2006) (0)
< 10.1% < 10.1%
10.1% to 15.0% 10.1% to 15.0%
> 15.0% > 15.0%
Change in Impervious Surface 2001 to 2006 (NLCD) (1)
< 1.1% < 1.1%
1.1% to 2.0% 1.1% to 2.0%
2.1% to 3.0% 2.1% to 3.0%
3.1% to 4.0% 3.1% to 4.0%
4.1% to 5.0% 4.1% to 5.0%
5.1% to 6.0% 5.1% to 6.0%
> 6.0% > 6.0%
Percent Impervious by 30m Pixel (NLCD2006) (2)
High : 100 - Low : 0 High : 100 - Low : 0