Reviewer wrote: "Provide narrative confirming that the janitor's closet water usage has not been addressed within the metering capacity and that at least 80% of the indoor plumbing fixtures and fittings is submetered with its exclusion". Does anyone know how to calculate the janitor's closet water usage to demonstrate that it is not more than 20% of the indoor plumbing? This is a Core and Shell v4.0 project. Thanks!
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Emily Purcell
Sustainable Design LeadCannonDesign
LEEDuser Expert
370 thumbs up
August 1, 2019 - 1:59 pm
Hi Alicia, we had the indoor plumbing fixtures portion of this credit denied on a recent project for the same reason. On discussing further with GBCI it was noted that there wasn't really a rule of thumb we could use, it would just have to actually be separately metered. From that conversation it sounded like the reviewer had (understandably!) gotten a lot of pushback on this approach, and they'd sent that up the chain of command, but ultimately the approach has not changed. The rationale was that the intent is to meter water consumption loads separately and JCs are process water, and no exception is made for projects with small process water loads.. Doesn't really add up to me, as JCs alone are negligible compared to flush volume, and a project should still be able to detect leaks or other issues without separating JCs, but that was the final word...
So I guess my advice for this situation is keep adding to the feedback to USGBC on this issue, but don't expect to earn the credit without actually metering the JC water flow.
Alicia Ravetto
Sustainability LeadDPR construction
4 thumbs up
August 1, 2019 - 2:57 pm
Thanks for sharing your experience. It does not make any sense to me that you'd have to meter JC separately. We will submit and see what happens.
Devendra Chaughule
Senior Manager - Sustainable ServicesSurmount
29 thumbs up
August 11, 2022 - 1:55 am
Hi Alicia,
Were you able to calculate the janitor's closet water usage to demonstrate that it is not more than 20% of the indoor plumbing? This same point has been raised by the review in one of our project along with water coolers.
Please let me know how you addressed this point and were you able to achieve the point.
Kelli Kimura
Opsis Architecture13 thumbs up
May 15, 2023 - 5:48 pm
Hi Alicia and all,
Checking in on Devendra's question above, we have gotten this same comment on a few projects going through design review right now and are wondering how to demonstrate the janitor closet water usage is minimal.
Any insights are appreciated!