LEED-BDC-v4-v5-Summary-of-Changes - Page 007

Extracted Content

Credit	Outdoor Water Use	Incorporated into new credit: WEc Enhanced Water Efficiency. Calculated baseline changed from “peak watering month” to “annual theoretical irrigation requirement (TIR).” CS projects can earn up to 3 points for Outdoor Water Use reduction with a 75% reduction threshold added.
Credit	Indoor Water Use	Incorporated into new credit: WEc Enhanced Water Efficiency. Point thresholds for calculated water reduction revised (1-3 points) for both NC and CS projects. Added new Option 1. Whole Project Water Use and Option 6. Water Reuse.
Credit	Cooling Tower Water Use	Incorporated into new credit: WEc Enhanced Water Efficiency, Option 5: Optimize Process Water Use. Maximum concentrations for parameters in condenser water lowered for NC and CS. Requirements for earning points for cooling tower cycles revised: 1 point: Removed “up to maximum of 10 cycles”. 2 points: Refers to “maximum calculated number of cycles to earn 1 point” without specifying a number. New requirement for increasing number of cycles by at least 25%. Includes both treatment and maintenance in condenser or makeup water systems. Uses the term “alternative water” instead of “recycled nonpotable water.”
Credit	Water Metering	Credit renamed to Water Metering and Leak Detection. Add new option (1 point) for leak detection sensors. Boilers and reclaimed water subsystems removed. Makeup water subsystem added to cover domestic hot water, swimming pools, chilled water systems, and process water systems. Commercial kitchen and laundry subsystems added. Projects are now required to install meters for each applicable subsystem. Irrigation: 80% requirement removed. Indoor Plumbing: Specifics added about including/excluding certain fixture. Added requirement specific to residential projects to meter each dwelling unit . Requirement added for providing real-time access to data for facility managers/tenants and hourly data recording capability. Requirement added for CS projects to install meters for future tenant spaces (min. 1 per floor).
Credit	Enhanced Water Efficiency	New credit. Incorporates LEED v4 WEc Indoor Water Use Reduction, WEc Outdoor Water Use Reduction, and WEc Cooling Tower Water Use credits.

Repair provenance

Reconstructed from the PDF’s embedded text and word/block coordinates, then visually verified against original PDF page 7 on 2026-07-26. The nested cooling-tower bullets and all row associations were confirmed from the original page image; no Marker or OCR text was used.

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