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LEED AP ID+C > WATER EFFICIENCY > Flashcards

WATER EFFICIENCY Flashcards

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1
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
INTENT (2)

A

To reduce indoor potable water consumption and preserve no and low cost potable water resources.

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2
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
REQUIREMENTS 2PART
+ 2 PART FOR WICH 2

A

PART 1 : Building Water Use
PART 2 : Appliance and Process Water Use
PART 2.1 : Standards for appliances
PART 2.2 : Standards for processes
Retail and Hospitality Only

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3
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
REQUIREMENTS
GENERAL 3

A
  1. For the fixtures and fittings listed in Table 1, as applicable to the project scope, reduce aggregate water consumption by 20% from the baseline. Base calculations on the volumes and flow rates shown in Table 1.
    2.All newly installed toilets, urinals, private lavatory faucets, and showerheads that are eligible for labeling must be WaterSense labeled (or a local equivalent for projects outside the U.S.).
  2. Projects where fixtures or fixture fittings are not within the tenant spaces are exempt from this prerequisite.
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4
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
REQUIREMENTS
GENERAL
reduce aggregate water consumption by X% from the baseline.
LABEL

A

20%
WaterSense

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5
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
REQUIREMENTS
GENERAL
Projects where fixtures or fixture fittings are not within the tenant spaces are ..

A

exempt from this prerequisite.

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6
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
Table: Baseline water consumption of fixtures and fittings
TOILET
URINAL

A

T: 1.6 gallons per flush (gpf)
U: 1.0 (gpf)

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7
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
Table: Baseline water consumption of fixtures and fittings

Public lavatory (restroom) faucet
Private lavatory faucet*
Kitchen faucet (excluding faucets used exclusively for filling operations)

A

0.5 gpm at 60 psi all others except private applications

2.2 gpm at 60 psi
2.2 gpm at 60 psi

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8
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
Table: Baseline water consumption of fixtures and fittings

SHOWERHEAD

A

2.5 gpm at 80 psi per shower stall

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9
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
REQUIREMENT : / EXCEPTION

A

Install appliances, equipment, and processes within the project scope that meet the requirements listed in the tables below. Existing appliances intended for reuse in the project are not required to meet the requirements

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10
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 2. Standards for appliances
Residential clothes washers
Commercial clothes washers

A

ENERGY STAR or performance equivalent

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11
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 2. Standards for appliances
Residential dishwashers (standard and compact)

A

ENERGY STAR or performance equivalent

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12
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 2. Standards for appliances
Prerinse spray valves

A

≤ 1.3 gpm (4.9 lpm)

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13
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 2. Standards for appliances
Ice machine

A

ENERGY STAR or performance equivalent and use either air-cooled or closed-loop cooling, such as chilled or condenser water system

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14
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 3. Standards for processes
Heat rejection and cooling

A

No once-through cooling with potable water for any equipment or appliances that reject heat

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15
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 3. Standards for processes
Cooling towers and evaporative condensers : EQUIP WITH (3)

A
  1. makeup water meters
  2. conductivity controllers and overflow alarms
  3. 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
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16
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 4. Standards for appliances
FOR ?

A

Retail and Hospitality Only

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17
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 5. Standards for processes
FOR ?

A

Retail and Hospitality Only

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18
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 4. Standards for appliances
DISHWASHER (5)

A

Undercounter ≤ 1.6 gal/rack
Stationary, single tank, door
≤ 1.4 gal/rack
Single tank, conveyor
≤ 1.0 gal/rack
Multiple tank, conveyor ≤ 0.9 gal/rack
Flight machine ≤ 180 gal/hour

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19
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 4. Standards for appliances
FOOD STEAMER (2)

Batch
Cook-to-order

A

Batch ≤ 6 gal/hour/pan
Cook-to-order ≤ 10 gal/hour/pan

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20
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 4. Standards for appliances
COMBINATION OVEN (2)
Countertop or stand
Roll-in

A

Countertop or stand ≤ 3.5 gal/hour/pan
Roll-in ≤ 3.5 gal/hour/pan

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21
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 5. Standards for processes
Discharge water temperature tempering (3)

A

Where local requirements limit discharge temperature of fluids into drainage system, use tempering device that runs water only when equipment discharges hot water OR Provide thermal recovery heat exchanger that cools drained discharge water below code-required maximum discharge temperatures while simultaneously preheating inlet makeup water OR If fluid is steam condensate, return it to boiler

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22
Q

PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 5. Standards for processes
Venturi-type flow-through vacuum generators or aspirators

A

Use no device that generates vacuum by means of water flow through device into drain

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23
Q

CREDIT : Indoor Water Use Reduction
INTENT

A

To reduce indoor potable water consumption and preserve no and low-cost potable water resources.

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24
Q

CREDIT OR PREREQUISITE ?#
Toilet

A

PREREQUISITE
1.6 gpf

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25
Q

CREDIT OR PREREQUISITE ?#
urinal

+baseline

A

PREREQUISITE
1.0 gpf

26
Q

CREDIT OR PREREQUISITE ?#
public lavatory

+baseline

A

PREREQUISITE
0.5 gpm at 60 psi** all others except
private applications

27
Q

CREDIT OR PREREQUISITE ?#
private lavatory

A

PREREQUISITE
2.2 gpm at 60 psi

28
Q

CREDIT OR PREREQUISITE ?#
Kitchen faucet

A

PREREQUISITE
2.2 gpm at 60 psi

29
Q

CREDIT OR PREREQUISITE ?#
Showerhead

A

PREREQUISITE
2.5 gpm at 80 psi per shower stall

30
Q

CREDIT OR PREREQUISITE ?#
Residential clothes washers

A

PREREQUISITE
ENERGY STAR

31
Q

CREDIT OR PREREQUISITE ?#
Commercial clothes washers

+requiriments 2

A

PREREQUISITE
ENERGY STAR
CREDIT
Maximum 1.8 gals per pound

32
Q

CREDIT OR PREREQUISITE ?#
Residential dishwashers

A

PREREQUISITE
ENERGY STAR

33
Q

CREDIT OR PREREQUISITE ?#
Prerinse spray valves

+baseline

A

PREREQUISITE
≤ 1.3 gpm (4.9 lpm)

34
Q

CREDIT OR PREREQUISITE ?#
Ice machine

A

PREREQUISITE
ENERGY STAR

35
Q

CREDIT OR PREREQUISITE ?
process Heat rejection and cooling

A

PREREQUISITE

36
Q

CREDIT OR PREREQUISITE ?
process Cooling towers and evaporative condensers

A

PREREQUISITE

37
Q

CREDIT OR PREREQUISITE ?#
kitchen equipment : dishwasher (5)

A

PREREQUISITE Retail and Hospitality Only
Undercounter ≤ 1.6 gal/rack
Stationary, single tank, door
≤ 1.4 gal/rack
Single tank, conveyor
≤ 1.0 gal/rack
Multiple tank, conveyor ≤ 0.9 gal/rack
Flight machine ≤ 180 gal/hour

CREDIT Retail and Hospitality Only
ENERGY STAR

38
Q

CREDIT OR PREREQUISITE ?#
kitchen equipment : food steamer (2)

batch
cook to order

A

PREREQUISITE Retail and Hospitality Only
Batch ≤ 6 gal/hour/pan
Cook-to-order ≤ 10 gal/hour/pan

CREDIT Retail and Hospitality Only
Batch (no drain connection) ≤ 2 gal/hour/pan including condensate cooling water
Cook-to-order (with drain connection) ≤ 5 gal/hour/pan including condensate cooling water

39
Q

CREDIT OR PREREQUISITE ?#
kitchen equipment : combination oven (2)

Countertop or stand
Roll-in

A

PREREQUISITE Retail and Hospitality Only
Countertop or stand ≤ 3.5 gal/hour/pan
Roll-in ≤ 3.5 gal/hour/pan

CREDIT Retail and Hospitality Only
Countertop or stand
≤ 1.5 gal/hour/panincluding
condensate cooling water

Roll-in ≤ 1.5 gal/hour/pan including
condensate cooling water

40
Q

CREDIT OR PREREQUISITE ?
process requirement
Discharge water temperature tempering

A

PREREQUISITE Retail and Hospitality Only

41
Q

CREDIT OR PREREQUISITE ?
process requirement
Venturi-type flow-through vacuum generators or
aspirators

A

PREREQUISITE Retail and Hospitality Only

42
Q

CREDIT OR PREREQUISITE ? #
kitchen equipment : food waste disposer (4)

Disposer :

Scrap collector

Pulper Maximum

Strainer basket

A

CREDIT Retail and Hospitality Only
Disposer : 3-8 gpm, full load condition, 10
minute automatic shutoff; or 1 gpm,
no-load condition

Scrap collector
Maximum 2 gpm makeup water

Pulper Maximum 2 gpm makeup water

Strainer basket
No additional water usage

43
Q

CREDIT OR PREREQUISITE ?
Compliant laboratory and medical equipment

A

CREDIT

44
Q

CREDIT OR PREREQUISITE ?
Compliant municipal steam systems

A

CREDIT

45
Q

CREDIT : Indoor Water Use Reduction
Table 1. Points for reducing water use

A

% reduction/Points
for ci/r/h
25% 2
30% 4
35% 6
40% 8
45% 10

50%
CI : 12
R: n/a
H: 11

46
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
GENERAL (2)

A

Additional potable water savings can be earned above the prerequisite level using alternative water sources. Include fixtures and fittings necessary to meet the needs of the occupants. Some of these fittings and fixtures may be outside the tenant space (for Commercial Interiors) or project boundary (for New Construction). Points are awarded according to Table 1.

AND
Install equipment within the project scope that meets the minimum requirements in Table 2, 3, 4, or 5 . One point is awarded for meeting all applicable requirements in any one table. All applicable equipment listed in each table must meet the standard. Retail projects can earn a second point for meeting the requirements of two tables.

47
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 1 : Points for reducing water use

Additional A savings can be earned above the prerequisite level using alternative water sources. Include fixtures and fittings necessary to meet the needs of the occupants. Some of these fittings and fixtures may be B (for Commercial Interiors) or project boundary (for New Construction). Points are awarded according to Table 1

A

A: potable water
B : outside the tenant space

48
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water

Install equipment within the project scope that meets the minimum requirements in Table 2, 3, 4, or 5 . X point is awarded for meeting all applicable requirements in any one table. All applicable equipment listed in each table must meet the standard. Y projects can earn a Z point for meeting the requirements of two tables.

A

X:One
Y: Retail
Z: SECOND

49
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 2. Compliant commercial washing machines

To use Table 2, the project must process at least X of laundry per year.

A

120,000 lbs (57 606 kg)

50
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 2. Compliant commercial washing machines

CALCUL based on?

A

Based on equal quantities of heavy, medium, and light soil laundry

51
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 2. Compliant commercial washing machines

WASHING MACHINE / REQUIREMENT

A

On-premise, minimum capacity 2,400 lbs (10 886 kg) per 8-hour shift

Maximum 1.8 gals per pound *

52
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 3. Standards for commercial kitchen equipment

the project must serve at least X meals per day of operation

A

100

53
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 3. Standards for commercial kitchen equipment

DISHWASHER

A

ENERGY STAR

54
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 3. Standards for commercial kitchen equipment

Food steamer (2)

batch
Cook-to-order

A

Batch (no drain connection)
≤ 2 gal/hour/pan including condensate cooling water

Cook-to-order (with drain connection)
≤ 5 gal/hour/pan including condensate cooling water

55
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 3. Standards for commercial kitchen equipment

Food waste disposer (4)
Disposer :
Scrap collector
Pulper
Strainer basket

A

Disposer : 3-8 gpm, full load condition, 10
minute automatic shutoff; or 1 gpm,
no-load condition

Scrap collector
Maximum 2 gpm makeup water

Pulper Maximum 2 gpm makeup water

Strainer basket
No additional water usage

56
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 4. Compliant laboratory and medical equipment

Reverse-osmosis water purifier

A

75% recovery

57
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 4. Compliant laboratory and medical equipment

Steam sterilizer (2)

For 60-inch sterilizer,
For 48-inch sterilizer

A

For 60-inch sterilizer, 6.3 gal/U.S. tray
For 48-inch sterilizer, 7.5 gal/U.S. tray

58
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 4. Compliant laboratory and medical equipment

Sterile process washer

A

0.35 gal/U.S. tray

59
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 4. Compliant laboratory and medical equipment

X-ray processor, 150 mm or more in any dimension

Digital imager, all sizes

A

Film processor water recycling unit

No water use

60
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 5. Compliant municipal steam systems

REQUIREMENT

A

must be connected to a municipal or district steam system that does not allow the return of steam condensate.

61
Q

CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 5. Compliant municipal steam systems

STEAM SYSTEM : STANDARD (2)

A

Steam condensate disposal
Cool municipally supplied steam condensate (no return) to drainage system with heat recovery system or reclaimed water

Reclaim and use steam condensate 100% recovery and reuse

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