In our October 2010 issue, “How to go green by 2013” (page 26) incorrectly states that a 6% to 8% BMP:ISA ratio manages 20% to 40% of impervious surfaces with minimal disruption to existing or planned infrastructure. The correct range of volume management is 50% to >95%.

In the November 2010 feature article “Solving the conservation conundrum,” on page 35 we inadvertently stated that national per-household water consumption fell an average of 44% from 1978 to 2008. The correct percentage is .44%