Pearl Building Rating System - Estidama

PW-R2: Exterior Water Monitoring
Intent To encourage the provision of metering facilities on all exterior water uses enabling
effective management of outdoor water consumption and prevention of leaks.
Credit
Requirements
Requirement
Achievement
Credit
Submission:
Design Rating
Credit
Submission:
Construction
Rating
Calculations and
Methodology
GENERAL
Demonstrate that easily accessible and clearly labelled water meters are provided and
capable of monitoring the water consumption of, at a minimum, the following exterior
water uses (where present):
� Heat rejection;
� External hose bibs;
� Irrigation systems;
� Swimming pools; and
� Water features.
ADDITIONAL REQUIREMENT/CLARIFICATIONS
None
References None
This is a requirement. There are no Credit Points awarded.
� Brief narrative describing how the requirements of the credit will be achieved;
� Extracts from specifications and MEP drawings clearly indicating the type, extent
and locations of all metering, and central monitoring system; and
� List of all exterior uses and corresponding metering equipment.
� Updated narrative describing how the requirements of the credit have been met;
� Manufacturer’s data and as-built drawings clearly indicating the type, extent and
locations of all metering, and central monitoring system;
� Photographic evidence confirming the installation of specified meters and central
monitoring system; and
� Written commitment from the building owner to submit all exterior water
monitoring data to Estidama (if requested).
� All meters must have data logging capability and be connected to a central
monitoring system so that information on the exterior water consumption can be
recorded. The monitoring system must have, at a minimum, the following capability:
� Provide hourly, daily, weekly, monthly and annual water consumption for each
end-use;
� Compare consumption to previous days, weeks, months and years for trend
analysis;
� Determine ‘out-of-range’ values to alert building operators to unusually high
consumption; and
� Record peak water consumption for each end-use.
� The Building owner must provide a written commitment to supply all water
monitoring data to Estidama (if requested). All reported information will be treated
as confidential.
Pearl Building Rating System: Design & Construction, Version 1.0, April 2010 120 of 223