LEED v4 LEED BD+C Credit-by-Credit Review

LEED v4 LEED BD+C Credit-by-Credit Review Location & Transportation Sustainable Sites Water Efficiency Energy & Atmosphere Materials & Resources Indoor Environmental Quality Innovation & Integrative Process

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Continuing Education 1.5 hours with GBCI LEED Specific: BD+C 1.5 hours with AIA/CES (LU) GBES will report you hours to GBCI and AIA automatically after you finish the course and pass the assessment quiz.

GBES is a Registered Provider with the American Institute of Architects Continuing Education Systems. Credit earned on completion of this course will be reported to AIA/CES for AIA members automatically. Certifications of Completion for non-aia members are available upon request. This course is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

W A T E R EFFICIENCY LEED BD+C LEED v4

Who this course is for

Learning Objectives Understand Location and Transportation credit intents, requirements for LEED for New Construction Recognize potential strategies and relevant team members for achieving credits Understand basic documentation considerations Recognize tools and resources for applying credits to building projects

Intent Requirements Referenced Standards Benefits & Issues Strategies / Implementation Calculations Timeline & Team Documentation

Adaptations. New Construction Core and Shell S c h o o l s R e t a i l Data Centers Warehouses H o s p i t a l i t y H e a l t h c a r e

Global LEED

W A T E R EFFICIENCY

WE Prerequisite Outdoor Water Use Reduction

WE Prerequisite: Outdoor Water Use Reduction Option 1. No irrigation required or Option 2. Reduced irrigation

No Permanent Irrigation 2 years

30% reduction

What is a strategy to design a landscape that doesn t require irrigation?

Plant species + Irrigation Efficiency

Reduce Irrigation Plan and design Practical turf areas Native / adaptive plants Efficient irrigation

Timeline + Team

<<Video>>

Q What is allowed to be used to reduce a project s landscape water requirement for WE Prerequisite Outdoor water use reduction? Choose 2 answers. A. Smart scheduling technologies B. Rainwater C. Plant species D. Irrigation system efficiency

Q What is allowed to be used to reduce a project s landscape water requirement for WE Prerequisite Outdoor water use reduction? A. Smart scheduling technologies B. Rainwater C. Plant species D. Irrigation system efficiency

WE Credit Outdoor Water Use Reduction

WE Credit: Outdoor Water Use Reduction Option 1. 2 Point (1 Point Healthcare) No irrigation required or Option 2. 1-2 Points (1 Healthcare) Reduced irrigation

No Permanent Irrigation 2 years

50% reduction

First 30% plants + efficient irrigation Additional 50% efficiency alternative water sources scheduling

15% reduction

Q What area should be excluded from landscape area calculations for WE Credit Outdoor Water Use Reduction? A. Permeable pavement B. Food garden C. Vegetated playground D. Athletic field

WE Prerequisite Indoor Water Use Reduction

WE Credit: Indoor Water Use Reduction 20% reduction

Referenced Standards

Global LEED

Path 1. Prescriptive or Path 2. Calculations

Baseline water consumption of fixtures and fittings Commercial fixtures, fittings and appliances Current baseline (IP units) Current baseline (SI units) Water closets (toilets)* 1.6 gallons per flush (gpf) 6 liters per flush (lpf) Urinal* 1.0 (gpf) 3.8 lpf Public lavatory (restroom) faucet 0.5 gpm at 60 psi** all others except private applications 1.9 lpm at 415 kpa, all others except private applications Private lavatory faucet* 2.2 gpm at 60 psi 8.3 lpm at 415 kpa Kitchen faucet (excluding faucets used exclusively for filling operations) 2.2 gpm at 60 psi 8.3 lpm at 415 kpa Showerhead* 2.5 gpm at 80 psi per shower stall 9.5 lpm at 550 kpa per shower stall

Standards for appliances Appliance Residential clothes washers Commercial clothes washers Residential dishwashers (standard and compact) Prerinse spray valves Ice machine Requirement ENERGY STAR or performance equivalent CEE Tier 3A ENERGY STAR or performance equivalent 1.3 gpm (4.9 lpm) ENERGY STAR or performance equivalent and use either air-cooled or closed-loop cooling, such as chilled or condenser water system

Standards for processes Process Heat rejection and cooling Cooling towers and evaporative condensers Requirement No once-through cooling with potable water for any equipment or appliances that reject heat Equip with makeup water meters conductivity controllers and overflow alarms efficient drift eliminators that reduce drift to maximum of 0.002% of recirculated water volume for counterflow towers and 0.005% of recirculated water flow for cross-flow towers

Interior Water Solutions 47% of the water used in commercial buildings is used in the restroom, mostly by toilets.

plumbing fixtures are you?? What water saving familiar with?

Ultra-low faucets and showerheads

Ultra-low-flow faucet aerators

Dual flush toilets and flushometers

Waterless Urinals 3 Year Simple Payback

Waterless Solutions Generated savings per 1000 square feet per year, according to an EPA building study. Waterless Units Less cost than traditional ones, thereby eliminating the incremental first costs, according to an EPA building study. Waterless Urinals Percent reduction in building water use. $4.53 $282 14%

Timeline + Team

WE Credit Indoor Water Use Reduction

% Reduction BD&C Schools, Retail, Hospitality, Healthcare ID&C CI Retail CI Hospitality 25% 1 1 2 2 2 30% 2 2 4 4 4 35% 3 3 6 6 6 40% 4 4 8 8 8 45% 5 5 10 10 10 50% 6 -- 12 -- 11

First 20% efficient fixtures Additional 25% efficiency alternative water sources

Adaptations. New Construction Core and Shell S c h o o l s R e t a i l Data Centers Warehouses H o s p i t a l i t y H e a l t h c a r e

<<Video>>

The Proximity Hotel

The W Hotel

The Orchard Hotel

WE Prerequisite Building-Level Water Metering

WE Prerequisite: Building-Level Water Metering Total Potable Water Use. Building + Grounds.

Share data 5 years

Implementation 1 2 3 4 5 6 7

Timeline + Team

WE Credit Building-Level Water Metering

WE Credit: Building-Level Water Metering 2 subsystems metered

Irrigation 80% of irrigated landscape

Indoor plumbing 80% of indoor fixture & fittings

Domestic hot water 80% of capacity

Boilers 100,000 gallons (378,500 liters) 500,000 BtuH (150 kw).

Reclaimed 100% Water

Other Process Water 80% of expected daily consumption

Why submeter?

Adaptations. New Construction Core and Shell S c h o o l s R e t a i l Data Centers Warehouses H o s p i t a l i t y H e a l t h c a r e

WE Credit Cooling Tower Water Use

WE Credit: Cooling Tower Water Use 1 potable water analysis

Maximum concentrations for parameters in condenser water Parameter Maximum level Ca (as CaCO 3 ) Total alkalinity SiO 2 Cl - Conductivity 1000 ppm 1000 ppm 100 ppm 250 ppm 2000 µs/cm

Cooling tower cycles Maximum number of cycles achieved without exceeding any filtration levels or affecting operation of condenser water system (up to maximum of 10 cycles) Achieve a minimum 10 cycles by increasing the level of treatment in condenser or make-up water OR Achieve the number of cycles for 1 point and use a minimum 20% recycled nonpotable water Points 1 2

Make-up = Evaporation + Blowdown + Drift

Maximize Cycles of concentration Blowdown Make-up water Minimize

Air handler condensate Cooling system water Pre-treated effluent Recycled wastewater

Calculations Cycles of concentration = Acceptable maximum concentrations Parameter concentrations in makeup water

Timeline + Team

WE Credit/Prerequisite Outdoor Water Use Reduction SS Credit Open Space SS Credit Rainwater Management EA Credit/Prerequisite Energy Performance

WE Credit/Prerequisite Indoor Water Use Reduction SS Credit Rainwater Management EA Credit/Prerequisite Energy Performance EA Credit/Prerequisite Commissioning

WE Credit Cooling Tower Water Use EA Credit/Prerequisite Energy Performance EA Credit/Prerequisite Commissioning

W A T E R EFFICIENCY

Automatic Login to Your Account Click Watch Your CE Courses Find the class in the list Click Action / Report your hours Self-reporting Login to Your Account Click Watch Your CE Courses Find the class in the list Click Action / Print Certificate Your hours are reported to GBCI / AIA within 1 business day.

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