Just want to clarify, if we irrigate using water only from ponds and any run-off goes back into the ponds, I would not need to meter irrigation water correct and only building consumption for option 1.
For option 2: our cooling towers have a make-up and bleed meter to submeter water usage from the main building meter would that suffice?
Paul C
164 thumbs up
September 14, 2010 - 11:35 am
The water from irrigation comes from retention ponds which contain water from runoff or from wells, in achieving option 1 whole building metering, would just building metering be adquate as no potable water is used for the grounds? For option 2, as I said we have submetering on the cooling tower but I would also like to obtain the IO credit for having another submeter. If I submeter my irrigation supply (non-potable water) would that count? On page 93 of the Ref. Guide 2nd last paragraph it states "meters must measure potable water use, but gray or reclaimed water use may also be measured to meet the requirements of this credit." If someone could shed some light on this I would greatly appreciate it. Thanks in advance.
Natalie Bodenhamer
AssociateAltura Associates, Inc.
96 thumbs up
September 16, 2010 - 6:13 pm
Hi Paul,
To achieve option 1, your whole building water meter will suffice. You do not need to include the water used for irrigation (as it is non-potable and is supplied via retention pond). To achieve option 2, metering the replacement water to all cooling towers onsite will satisfy the requirement. Regarding exemplary performance, metering at least 80% of the irrigation water supply will qualify. Sounds like the retention pond will help you out in SSc6 and WEc3 too! Good deal!
Paul C
164 thumbs up
October 18, 2010 - 3:42 pm
I just want to verify as the wording is not extremely clear within the reference guide.
I will read/record the building's city potable water supply meter and record our consumption one day per week. This credit at first seems to only be concerned with potable water consumption.
I will also view the building cooler tower submeter and record the number one day per week.
We are currently in the stages of installing submeters on our irrigation water which is non-potable but will still give us the one IO point for this credit? For the WHOLE BUILDING metering I will only worry about the potable water consumption and ignore the irrigation water meter, thus the whole building water consumption will exclude irrigation consumption.
Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11477 thumbs up
October 22, 2010 - 1:29 am
Paul, this reads correctly to me.