The LEED V4 Reference Guide states that "If a Phase I ESA is more than one year old, a new assessment is required". At what moment is the duration since the previous ESA measured?

I've had this question come up on two separate projects in the last few weeks, from the companies asked to perform the ESA.

ASTM 1527 lists several non-scope considerations in section 13.1.5 L(ist of Additional Issues), including Asbestos-Containing Building Materials, Mold and Radon, among others, along with langu

Hi All, I'm working on a Healthcare v4 project that has detected iron in significant concentrations on the project site and it appears to possibly be a background contaminate but this is still bein