HPD Disclosure Threshold

Hi, Gretchen! 100 ppm is actually a higher level of disclosure than 1,000 (counterintuitive, I know).

Hi LEED User Hive, A follow up Q to Gretchen's question. The LEED Documentation Tracker Template in the Documentation Toolkit indicates that HPD's with disclosure threshold 0.1 % 1000 ppm and disclosure threshold 0.01 % 100 ppm are both compliant. Yet for Declare labels, the Documentation Tracker Template only provides the option for the LCB Compliant (now called LCB RL Approved) disclosure level of 0.1% 1000 ppm (not also 0.01% 100ppm as it does for HPD's). I've seen several Declare labels which are LCB RL Approved with % disclosure at 100 ppm.Isn't that a higher level of disclosure, similar to the 100 ppm being a higher threshold than 1000 ppm for HPD's? And if the 100 ppm threshold is acceptable, would it need to be 99.99% @ 100 ppm? Or what's the magic number? 

Hi Laurie,

Good question. As noted above 100 ppm is a more stringent threshold than 1000 ppm, so anything that meets the 100 ppm threshold also meets the 1000 ppm threshold. Those 100 ppm LBC RL Approved labels also qualify as 1000 ppm; you can tick that box for them.

I think the creators of that tracker didn't include a separate column for 100 ppm Declare labels because they don't qualify for anything beyond what the 1000 ppm labels qualify for, so there is no benefit to tracking that achievement level separately. To get the Option 2 point, only Red List Free (and third-party verified) Declare labels count.

To your last question, 99.99% screened is the same as screened to 100 ppm (100 ppm = 0.01%).

I hope that this helps.