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LEED v2009
Existing Building Operations
Indoor Environmental Quality
Green Cleaning—Indoor Chemical and Pollutant Source Control

LEED CREDIT

EBOM-2009 IEQc3.5: Green cleaning - indoor chemical and pollutant source control 1 point

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LEEDuser expert

Alexis Voeltner

Healthy Buildings
LEED EBOM Project Manager

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Requirements

Employ permanent entryway systems (grilles, grates, mats) at least 10 feet (3 meters) long in the primary direction of travel to capture dirt and particulates entering the building at all public entry points, and develop the associated cleaning strategies to maintain those entryway systems as well as exterior walkways. Public entryways that are not in use or serve only as emergency exits are excluded from the requirements, as are private offices.

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Cost estimates for this credit

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Frequently asked questions

Do the ten-foot mats need to be one continuous mat?

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Can an entryway system be split up so that part is located outside and the remainder of the required ten feet is located inside?

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We already have a carpeted lobby that extends further than ten feet in all directions from the building entrance. Does this count as a compliant entryway system? Our cleaning staff vacuums and performs restorative cleaning frequently to this area.

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We don’t have enough space for ten feet of mats. What can we do to earn this credit?

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How often do entryway systems need to be cleaned?

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Can we clean entryway mats in-house, or do they need to be sent to a “professional” cleaning service?

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We have a loading dock and an attached underground garage. Both of these areas have access into the building interior. Do we need to have entryway systems for either of them?

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See all forum discussions about this credit »

Addenda

7/19/2010Updated: 2/14/2015
Reference Guide Correction
Description of change:
Remove the second paragraph:Provide containment drains plumbed for appropriate disposal ofhazardous liquid wastes in places where water and chemical concentratemixing occurs for laboratory purposes.
Campus Applicable
No
Internationally Applicable:
No
7/19/2010Updated: 2/14/2015
Reference Guide Correction
Description of change:
Remove the second paragraph:Give special consideration to the location of containment drains toensure that hazardous waste is disposed of properly and preventenvironmental damage or contamination of water systems.
Campus Applicable
No
Internationally Applicable:
No
7/19/2010Updated: 2/14/2015
Rating System Correction
Description of change:
Remove the second paragraph:Provide containment drains plumbed for appropriate disposal ofhazardous liquid wastes in places where water and chemical concentratemixing occurs for laboratory purposes.
Campus Applicable
No
Internationally Applicable:
No
8/1/2011
LEED Interpretation
Inquiry:

We want to request an interpretation of the requirements for LEED EB EQc3.3 stated in a previous CIR dated 4/24/2004. The CIR appears to be written for new construction and for sale unit properties (such as condos).The 2004 LEED NC CIR states that multi-unit residential buildings must meet the requirements for commercial buildings (covering common area, owner controlled areas of the building), and the following for the residential, tenant controlled areas:Item #1: Educate the residents on the green cleaning concepts and products via discussion and written materials upon move-in and periodically thereafter.Item #2: Provide an estimated six-month supply of green cleaning products to residents, as wellas information on how to easily purchase refills and/or replacements.Assume that a Multi-Family Residential Apartment (Rental) Property complies with the following:1.The property that is applying for LEED EB certification meets all the requirements for LEED EB Green Cleaning credits for common spaces/owner controlled spaces including the cleaning policy and plan, products purchased and used, equipment purchased and used, and also follows the same green cleaning procedures whenever they have access to residential apartment units (including during all

Ruling:

The project has proposed an alternative compliance path for 2009 Existing Buildings: Operations & Maintenance projects that include multi-family residential units for IEQ Prerequisite 3: Green Cleaning Policy, IEQ Credit 3.1: Green Cleaning High Performance Cleaning program, and IEQ Credit 3.3: Green Cleaning- Purchase of Sustainable Cleaning Products and Materials using Innovation in Design credit requirements outlined in Formal Inquiry dated 04/08/2004 ID #766 for multi-family New Construction projects. The proposed approach is not acceptable. For IEQ Prerequisite 3: Green Cleaning Policy and IEQc3.1: Green Cleaning-High-Performance Cleaning Program, the green cleaning policy and program includes resident areas. Additional steps should be taken to educate the residents on the green cleaning concepts and recommended products via discussion and written materials upon move-in and periodically thereafter. Examples of acceptable steps could include a written program, a brochure, a coupon for discounted purchase, or a bulk supply of cleaning supplies available at maintenance office. For existing building projects with multi-family spaces attempting IEQ Credit 3.3: Green Cleaning- Purchase of Sustainable Cleaning Products and Materials the percent of total annual purchases must include all cleaning purchases made for the building, regardless of who purchased the products (residents or building staff).Applicable internationally.

Campus Applicable
No
Internationally Applicable:
Yes
10/1/2012
LEED Interpretation
Inquiry:

Carpet tile is not currently considered an acceptable entryway system. One reason carpet tile is not accepted is because it cannot be cleaned underneath and therefore does not meet the performance of mechanical systems (such as grates/grilles), or roll-out mats. Carpet tile is a highly desired material for walk off areas due to its ease of maintenance as compared to mechanical systems, avoidance of trip hazards associated with roll-out mats, and numerous other factors. The ability to clean underneath carpet tile is not necessary. Carpet tile creates a sealed floor where dirt and moisture do not penetrate the seams. Though not specifically required by the rating system, the reference guide provides suggestions for optimal performance attributes for entryway systems. The carpet tile product we are suggesting meets the performance-related attributes as follows:
Capture particles & prevent interior contamination- the carpet tile product is specifically designed to withstand heavy traffic at entranceways. Captures and hides soil, requires minimal maintenance and helps prevent slips and falls. Extend 10 feet: the carpet tile will extend 15' into the interior from the exterior entrance and 40' in left-right directions along the building lobby. Solid backings & appropriate for climate- the carpet tile backing is stable even under extreme changes in temperature and humidity. It will not move, create gaps, or curl up over time. High-void-volume & high fiber height- the carpet tile is produced with needlepunch hair-like face fibers with pile height of 0.165 in. Electrostatic propensity- the electrostatic propensity level is less than 2.5 kV. Weekly cleaning - the walk-off system will be maintained by the in-house school maintenance staff. The tiles are vacuumed daily and spot cleaned with appropriate environmentally-preferable cleaning products as needed. If an individual tile is deemed to be damaged beyond repair, it is simply removed and immediately replaced with a new identical tile.

How can we demonstrate that carpet tile is an equally performing or better solution for entryway systems?

Ruling:

The applicant is requesting confirmation that carpet tiles may be used as acceptable entryway systems. Yes, carpet tiles with similar attributes to the product described are acceptable entryway systems.Conventional carpet is not acceptable, the carpet tile must be specifically designed for entryway system or similar use, have performance attributes equivalent to other acceptable entryway systems, and must be regularly maintained. Applicable Internationally.

***Updated 01/012013 to add applicability for LEED 2009 for Healthcare and to remove the text "(such as high pile height)".

Campus Applicable
No
Internationally Applicable:
Yes
8/1/2011
LEED Interpretation
Inquiry:

Where there are physical impediments to locating 10 ft of walk-off mats inside the building, is it acceptable to locate a portion of the mat or grate outside and then the remainder of the required 10 ft inside?

Ruling:

The intent for the entryway system (grilles, grates, walk-off mats) is to capture dirt and dust. An exception to the 10 ft length and/or indoor location is acceptable provided your alternative solution meets this intent and is thoroughly justified. Applicable Internationally.

Campus Applicable
No
Internationally Applicable:
Yes
11/1/2011
LEED Interpretation
Inquiry:

The project team proposes to use a environmentally preferable cleaning solution, a handheld ionized tap water system, to eliminate or significantly reduce the amount of chemicals used within the project building.
The ionized water system works as follows:

1.When the spray bottle trigger is pressed, the water flows through a water cell that applies a slight electrical charge to the tap water.
2.The charged water passes through an ion exchange membrane, where the ionized water is separated into an oxygenated mixture of positively and negatively electrically charged nano-bubbles.
3.When applied directly to a surface, the ionized water helps break apart and lift the dirt from the surface like a magnet, enabling it to be wiped away.
4.Before the water exits the nozzle, a slight electric field is applied, allowing the water to carry a low-level electric field to the surface where the germs may be living. When used as directed with tap water in the majority of municipalities, this low-level electric field can kill more than 99.9 percent of harmful germs.

Using an ionized water cleaning system would no longer require purchase of many green cleaning chemicals; therefore, the project team has developed a new approach to documenting IEQc3.3. Rather than documenting that 30 percent of the products purchased meet the LEED sustainable cleaning criteria (by cost), the project team proposes to document the cleaning methods used during each cleaning shift. After each shift, the housekeeping personnel will document the cleaning methods and chemicals (or tap water if using the electrolyzed water system) used. Sustainable methods and chemicals that meet the LEED requirements for this alternative compliance approach will include either the use of chemicals that meet existing IEQc3.3 requirements or the use of ionized tap water.
An alternative compliance table will be created by the project team to account for criteria (with regard to performance vs. purchases) in order to demonstrate compliance with the SSc3.3 requirements.

Ruling:

"The project team seeks allowance to satisfy the credit requirements through the use of ionized tap water in lieu of chemical cleaning solutions. This is an acceptable approach if the following criteria are met:

•Manufacturer’s documentation of third-party performance testing is included with the credit submittal documentation. The testing should demonstrate performance comparable to Green Seal, Environmental Choice, or another standard equivalent to or more stringent than those required in IEQc3.3: Green Cleaning—Purchase of Sustainable Cleaning Products and Materials.
•If the device is marketed and used for antimicrobial cleaning, manufacturer’s testing must demonstrate antimicrobial performance comparable to EPA’s Office of Pollution Prevention and Toxics (OPPT) and Design for the Environment (DfE) requirements as appropriate for use patterns and marketing claims.
•A custodial effectiveness assessment is performed as outlined in IEQc3.2: Green Cleaning—Custodial Effectiveness Assessment.
•The typical performance metric (percentage of purchases based on cost) for evaluating compliance with this credit will not apply. The project team may show compliance with one of the following:
a) Showing, based on one year of historic cleaning chemical costs, that use of ionized tap water during the performance period has reduced the purchase of chemical cleaning and material products by at least 30%. Any changes in occupancy or other factors that vary between the baseline year and the performance period that affect the need for cleaning products must be accounted for in the analysis.
b. Tracking the total cost of all cleaning and material products purchased during the performance period, plus the amortized cost for the ionized water cleaning system (amortized over 12 months).
c) Tracking the total volume of cleaning and material products and ionized water used during the performance period and showing that 30% meets the existing IEQc3.3 criteria or is ionized tap water. Applicable internationally.
"

Campus Applicable
No
Internationally Applicable:
Yes
See all forum discussions about this credit »

Checklists

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Documentation toolkit

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Credit achievement rate

XX%

Upgrade to LEEDuser Premium to see how many projects achieved this credit. Try it free »

LEEDuser expert

Alexis Voeltner

Healthy Buildings
LEED EBOM Project Manager

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© Copyright U.S. Green Building Council, Inc. All rights reserved.

Requirements

Employ permanent entryway systems (grilles, grates, mats) at least 10 feet (3 meters) long in the primary direction of travel to capture dirt and particulates entering the building at all public entry points, and develop the associated cleaning strategies to maintain those entryway systems as well as exterior walkways. Public entryways that are not in use or serve only as emergency exits are excluded from the requirements, as are private offices.

XX%

Upgrade to LEEDuser Premium to see how many projects achieved this credit. Try it free »

Got the gist of IEQc3.5 but not sure how to actually achieve it? LEEDuser gives step-by-step help. Premium members get:

  • Checklists covering all the key action steps you'll need to earn the credit.
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  • Ideas for going beyond LEED with best practices.
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In the end, LEED is all about documentation. LEEDuser’s Documentation Toolkit, for premium members only, saves you time and helps you avoid mistakes with:

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  • Spreadsheets and forms to give to subs and other team members.
  • Guidance documents on arcane LEED issues.
  • Sample templates to help guide your narratives and LEED Online submissions.
  • Examples of actual submissions from certified LEED projects.

Do the ten-foot mats need to be one continuous mat?

The answer to this question is available to LEEDuser premium members. Start a free trial »

(If you're already a premium member, log in here.)

Can an entryway system be split up so that part is located outside and the remainder of the required ten feet is located inside?

The answer to this question is available to LEEDuser premium members. Start a free trial »

(If you're already a premium member, log in here.)

We already have a carpeted lobby that extends further than ten feet in all directions from the building entrance. Does this count as a compliant entryway system? Our cleaning staff vacuums and performs restorative cleaning frequently to this area.

The answer to this question is available to LEEDuser premium members. Start a free trial »

(If you're already a premium member, log in here.)

We don’t have enough space for ten feet of mats. What can we do to earn this credit?

The answer to this question is available to LEEDuser premium members. Start a free trial »

(If you're already a premium member, log in here.)

How often do entryway systems need to be cleaned?

The answer to this question is available to LEEDuser premium members. Start a free trial »

(If you're already a premium member, log in here.)

Can we clean entryway mats in-house, or do they need to be sent to a “professional” cleaning service?

The answer to this question is available to LEEDuser premium members. Start a free trial »

(If you're already a premium member, log in here.)

We have a loading dock and an attached underground garage. Both of these areas have access into the building interior. Do we need to have entryway systems for either of them?

The answer to this question is available to LEEDuser premium members. Start a free trial »

(If you're already a premium member, log in here.)

7/19/2010Updated: 2/14/2015
Reference Guide Correction
Description of change:
Remove the second paragraph:Provide containment drains plumbed for appropriate disposal ofhazardous liquid wastes in places where water and chemical concentratemixing occurs for laboratory purposes.
Campus Applicable
No
Internationally Applicable:
No
7/19/2010Updated: 2/14/2015
Reference Guide Correction
Description of change:
Remove the second paragraph:Give special consideration to the location of containment drains toensure that hazardous waste is disposed of properly and preventenvironmental damage or contamination of water systems.
Campus Applicable
No
Internationally Applicable:
No
7/19/2010Updated: 2/14/2015
Rating System Correction
Description of change:
Remove the second paragraph:Provide containment drains plumbed for appropriate disposal ofhazardous liquid wastes in places where water and chemical concentratemixing occurs for laboratory purposes.
Campus Applicable
No
Internationally Applicable:
No
8/1/2011
LEED Interpretation
Inquiry:

We want to request an interpretation of the requirements for LEED EB EQc3.3 stated in a previous CIR dated 4/24/2004. The CIR appears to be written for new construction and for sale unit properties (such as condos).The 2004 LEED NC CIR states that multi-unit residential buildings must meet the requirements for commercial buildings (covering common area, owner controlled areas of the building), and the following for the residential, tenant controlled areas:Item #1: Educate the residents on the green cleaning concepts and products via discussion and written materials upon move-in and periodically thereafter.Item #2: Provide an estimated six-month supply of green cleaning products to residents, as wellas information on how to easily purchase refills and/or replacements.Assume that a Multi-Family Residential Apartment (Rental) Property complies with the following:1.The property that is applying for LEED EB certification meets all the requirements for LEED EB Green Cleaning credits for common spaces/owner controlled spaces including the cleaning policy and plan, products purchased and used, equipment purchased and used, and also follows the same green cleaning procedures whenever they have access to residential apartment units (including during all

Ruling:

The project has proposed an alternative compliance path for 2009 Existing Buildings: Operations & Maintenance projects that include multi-family residential units for IEQ Prerequisite 3: Green Cleaning Policy, IEQ Credit 3.1: Green Cleaning High Performance Cleaning program, and IEQ Credit 3.3: Green Cleaning- Purchase of Sustainable Cleaning Products and Materials using Innovation in Design credit requirements outlined in Formal Inquiry dated 04/08/2004 ID #766 for multi-family New Construction projects. The proposed approach is not acceptable. For IEQ Prerequisite 3: Green Cleaning Policy and IEQc3.1: Green Cleaning-High-Performance Cleaning Program, the green cleaning policy and program includes resident areas. Additional steps should be taken to educate the residents on the green cleaning concepts and recommended products via discussion and written materials upon move-in and periodically thereafter. Examples of acceptable steps could include a written program, a brochure, a coupon for discounted purchase, or a bulk supply of cleaning supplies available at maintenance office. For existing building projects with multi-family spaces attempting IEQ Credit 3.3: Green Cleaning- Purchase of Sustainable Cleaning Products and Materials the percent of total annual purchases must include all cleaning purchases made for the building, regardless of who purchased the products (residents or building staff).Applicable internationally.

Campus Applicable
No
Internationally Applicable:
Yes
10/1/2012
LEED Interpretation
Inquiry:

Carpet tile is not currently considered an acceptable entryway system. One reason carpet tile is not accepted is because it cannot be cleaned underneath and therefore does not meet the performance of mechanical systems (such as grates/grilles), or roll-out mats. Carpet tile is a highly desired material for walk off areas due to its ease of maintenance as compared to mechanical systems, avoidance of trip hazards associated with roll-out mats, and numerous other factors. The ability to clean underneath carpet tile is not necessary. Carpet tile creates a sealed floor where dirt and moisture do not penetrate the seams. Though not specifically required by the rating system, the reference guide provides suggestions for optimal performance attributes for entryway systems. The carpet tile product we are suggesting meets the performance-related attributes as follows:
Capture particles & prevent interior contamination- the carpet tile product is specifically designed to withstand heavy traffic at entranceways. Captures and hides soil, requires minimal maintenance and helps prevent slips and falls. Extend 10 feet: the carpet tile will extend 15' into the interior from the exterior entrance and 40' in left-right directions along the building lobby. Solid backings & appropriate for climate- the carpet tile backing is stable even under extreme changes in temperature and humidity. It will not move, create gaps, or curl up over time. High-void-volume & high fiber height- the carpet tile is produced with needlepunch hair-like face fibers with pile height of 0.165 in. Electrostatic propensity- the electrostatic propensity level is less than 2.5 kV. Weekly cleaning - the walk-off system will be maintained by the in-house school maintenance staff. The tiles are vacuumed daily and spot cleaned with appropriate environmentally-preferable cleaning products as needed. If an individual tile is deemed to be damaged beyond repair, it is simply removed and immediately replaced with a new identical tile.

How can we demonstrate that carpet tile is an equally performing or better solution for entryway systems?

Ruling:

The applicant is requesting confirmation that carpet tiles may be used as acceptable entryway systems. Yes, carpet tiles with similar attributes to the product described are acceptable entryway systems.Conventional carpet is not acceptable, the carpet tile must be specifically designed for entryway system or similar use, have performance attributes equivalent to other acceptable entryway systems, and must be regularly maintained. Applicable Internationally.

***Updated 01/012013 to add applicability for LEED 2009 for Healthcare and to remove the text "(such as high pile height)".

Campus Applicable
No
Internationally Applicable:
Yes
8/1/2011
LEED Interpretation
Inquiry:

Where there are physical impediments to locating 10 ft of walk-off mats inside the building, is it acceptable to locate a portion of the mat or grate outside and then the remainder of the required 10 ft inside?

Ruling:

The intent for the entryway system (grilles, grates, walk-off mats) is to capture dirt and dust. An exception to the 10 ft length and/or indoor location is acceptable provided your alternative solution meets this intent and is thoroughly justified. Applicable Internationally.

Campus Applicable
No
Internationally Applicable:
Yes
11/1/2011
LEED Interpretation
Inquiry:

The project team proposes to use a environmentally preferable cleaning solution, a handheld ionized tap water system, to eliminate or significantly reduce the amount of chemicals used within the project building.
The ionized water system works as follows:

1.When the spray bottle trigger is pressed, the water flows through a water cell that applies a slight electrical charge to the tap water.
2.The charged water passes through an ion exchange membrane, where the ionized water is separated into an oxygenated mixture of positively and negatively electrically charged nano-bubbles.
3.When applied directly to a surface, the ionized water helps break apart and lift the dirt from the surface like a magnet, enabling it to be wiped away.
4.Before the water exits the nozzle, a slight electric field is applied, allowing the water to carry a low-level electric field to the surface where the germs may be living. When used as directed with tap water in the majority of municipalities, this low-level electric field can kill more than 99.9 percent of harmful germs.

Using an ionized water cleaning system would no longer require purchase of many green cleaning chemicals; therefore, the project team has developed a new approach to documenting IEQc3.3. Rather than documenting that 30 percent of the products purchased meet the LEED sustainable cleaning criteria (by cost), the project team proposes to document the cleaning methods used during each cleaning shift. After each shift, the housekeeping personnel will document the cleaning methods and chemicals (or tap water if using the electrolyzed water system) used. Sustainable methods and chemicals that meet the LEED requirements for this alternative compliance approach will include either the use of chemicals that meet existing IEQc3.3 requirements or the use of ionized tap water.
An alternative compliance table will be created by the project team to account for criteria (with regard to performance vs. purchases) in order to demonstrate compliance with the SSc3.3 requirements.

Ruling:

"The project team seeks allowance to satisfy the credit requirements through the use of ionized tap water in lieu of chemical cleaning solutions. This is an acceptable approach if the following criteria are met:

•Manufacturer’s documentation of third-party performance testing is included with the credit submittal documentation. The testing should demonstrate performance comparable to Green Seal, Environmental Choice, or another standard equivalent to or more stringent than those required in IEQc3.3: Green Cleaning—Purchase of Sustainable Cleaning Products and Materials.
•If the device is marketed and used for antimicrobial cleaning, manufacturer’s testing must demonstrate antimicrobial performance comparable to EPA’s Office of Pollution Prevention and Toxics (OPPT) and Design for the Environment (DfE) requirements as appropriate for use patterns and marketing claims.
•A custodial effectiveness assessment is performed as outlined in IEQc3.2: Green Cleaning—Custodial Effectiveness Assessment.
•The typical performance metric (percentage of purchases based on cost) for evaluating compliance with this credit will not apply. The project team may show compliance with one of the following:
a) Showing, based on one year of historic cleaning chemical costs, that use of ionized tap water during the performance period has reduced the purchase of chemical cleaning and material products by at least 30%. Any changes in occupancy or other factors that vary between the baseline year and the performance period that affect the need for cleaning products must be accounted for in the analysis.
b. Tracking the total cost of all cleaning and material products purchased during the performance period, plus the amortized cost for the ionized water cleaning system (amortized over 12 months).
c) Tracking the total volume of cleaning and material products and ionized water used during the performance period and showing that 30% meets the existing IEQc3.3 criteria or is ionized tap water. Applicable internationally.
"

Campus Applicable
No
Internationally Applicable:
Yes

LEEDuser expert

Alexis Voeltner

Healthy Buildings
LEED EBOM Project Manager

See all LEEDuser forum discussions about this credit » Unsubscribe from discussions about EBOM-2009 IEQc3.5