This is a legacy version of the WELL Building Standard. Please check the latest version here.

WELL Addenda

WELL ADDENDA

Review the complete list of addenda changes made to the WELL Building Standard.

Feature 21: Displacement ventilation

Type Description
Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To improve air quality in the breathing zone of the room and maintain thermal comfort by supplying low velocity outdoor air near the floor and expelling near the ceiling.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

Replace “One of the following is met for projects implementing a displacement ventilation system for heading and/or cooling:” with “Projects implement a displacement ventilation system for heating and/or cooling in which one of the following is met:”


Feature 22: Pest control

Type Description
Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 01 May, 2019

Projects may achieve Feature 22, Part 1 by using uncovered trashcans if they are located directly underneath paper towel dispensers and at least one closed trashcan is additionally provided to collect waste other than paper towels. This does not apply to trashcans located in areas where food is prepared and stored (e.g., kitchens, pantries, etc.) as these recepticles must be closed to avoid pests.


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 01 May, 2019

Projects may achieve Feature 22, Part 1 by using existing cabinetry with built-in open trash receptacles so long as they are emptied and inspected for pests on a daily basis and additional pest management procedures be incorporated (e.g., tolerance and action threshold, specific response times, and evaluation/record keeping). Should pests eventually become an issue, the project commits to providing lids at trash receptacles immediately.


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 02 Jan, 2019

In bathrooms, projects may use garbage or recycling cans without lids that are designated for only paper towels so long as there are nearby garbage cans that meet the feature requirements.


Amendment
Type: Amendment
Post Date: 15 Aug, 2018

For Part 1c, add: "(except paper recycling bins)" after "cans"


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 27 Apr, 2017

When desk bins are used to comply with Feature 22, Part 1, Requirement b, waste must be emptied at least once per day. Bins must be lined with appropriate liners (e.g. biodegradable liners for the compost bin) that will sufficiently retain all waste and waste residue. Bins must be wiped to remove waste residue when present or at least weekly.


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "Inspections". Add: "Visual inspections during performance verification"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To reduce the presence of pests in buildings and minimize occupant exposure to pest-related allergens.'


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 06 May, 2016

Inquiry: For Part 1b, our garbage cans are integrated into casework. The casework has a 6 inch opening at the top for users to insert waste. The garbage is collected from the garbage cans daily to minimize the time that waste remains in the garbage cans. Will this design meet the requirements of Part 1b?

Ruling: No, the design as described is not approved. The openings are large enough to allow pests to gain access to the garbage and allow for discarded trash to fall outside the garbage receptacle within the casework.


Verification type
Type: Verification type
Post Date: 06 May, 2016

Change Part 1 verification type from Visual Inspection to Operations Schedule and Spot Check.


Amendment
Type: Amendment
Post Date: 10 Feb, 2016

In introduction language, remove "and furniture be covered in washable covers" from the last sentence in the second paragraph. The last sentence becomes: "To minimize allergenic pests, this feature requires that pest inspections be conducted regularly and food be stored and sealed."


Feature 23: Advanced air purification

Type Description
Amendment
Type: Amendment
Post Date: 20 Oct, 2017

For Part 1a, add: "or combination particulate/carbon filters" after "Activated carbon filters"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To improve recirculated indoor air quality through the implementation of advanced air purification strategies.'


Feature 24: Combustion minimization

Type Description
Amendment
Type: Amendment
Post Date: 01 Nov, 2018

In part description, remove: "(whether primary or back-up) must meet" after "...heating or power generation". Add: "(including back-up if used more than 200 hours per year) meets"


Equivalency
Type: Equivalency
Post Date: 20 Oct, 2017

China's GB 6932-2015 Domestic gas instantaneous water heater, Class 5 has been approved for Feature 24 Part 2.
While the the testing protocols for humidity and oxygen in GB 6932-2015 for humidity and oxygen percentage differ from those in California's South Coast Air Quality Management District rule 1121, Class 5 is currently deemed best within China.
This equivalency may only be used for projects in China.


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

Add: "for construction occurring within one year prior to Performance Verification:" after "...the following requirements are met"


Equivalency
Type: Equivalency
Post Date: 21 Aug, 2017

The emission standards of Central Pollution Control Board (Government of India) has been accepted as an alternative for California’s South Coast Air Quality Management District rules for pollution in Feature 24 Part 2.
However, combustion equipment for which there are no CPCB emission standards must meet California’s South Coast Air Quality Management District rules for pollution.
This equivalency may only be used for projects in India.


Equivalency
Type: Equivalency
Post Date: 21 Aug, 2017

The following diesel emission standards are acceptable alternatives to the requirements of Feature 24 Part 4:
Bharat Stage III for non-road vehicles (Requirement a).
Bharat Stage III or IV for on-road vehicles (Requirement b).
These equivalencies may be only be used for projects in India.


Equivalency
Type: Equivalency
Post Date: 07 Apr, 2017

The following equivalencies have been approved for Feature 24 Part 4:
1. Euro Stage IIIA, US Tier 3 and 2, Japan MoE standards for non-road diesel engine vehicles (Requirement a).
2. Euro V (2012) standard for on road diesel engine vehicles (requirement b).
These standards allow emission levels exceeding those required in US Tier 4 and US EPA 2007 but are currently deemed best in class within Hong Kong at this time.
These equivalencies may only be used for projects in Hong Kong.


Equivalency
Type: Equivalency
Post Date: 20 Mar, 2017

The following European local emission standards have been approved as an acceptable equivalent for Feature 24, Part 4:
1. European Stage IV standard for non-road diesel engine vehicles or the use of non-road diesel engine vehicles equipped with diesel particulate filters (DPF).
2. Euro VI emission standards for on-road engine vehicles or the use of on-road diesel engine vehicles equipped with diesel particulate filters (DPF).


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 17 Jan, 2017

Projects that wish to include a gas range within the project scope must provide range hoods with increased exhaust efficiency in order to exhaust combustion byproducts. The range hood must provide at least 100 cubic feet per minute of exhaust air for every 10,000 BTU’s of burner output. If the burner output is unknown or cannot be guaranteed, then the range hood should provide a minimum of 600 cubic feet per minute of exhaust air. In addition, the range hood shall be exhausted directly to the outdoors.


Equivalency
Type: Equivalency
Post Date: 17 Jan, 2017

The following standards have been approved as an acceptable alternative for F24, Part 4:
1. China standard GB20891-2014 for non-road diesel engine vehicles
2. China standard GB17691-2005 for passenger vehicles and heavy duty trucks
Note that that NOx limits in the China standards are higher then US EPA limits.
This Equivalency may only be used for projects in China.


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To reduce occupant exposure to combustion-related air pollution from heating and transportation sources.'


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add Owner Letter of Assurance as required documentation, remove Architect Letter of Assurance.


Feature 25: Toxic material reduction

Type Description
Amendment
Type: Amendment
Post Date: 01 Feb, 2019

d. Sound Duct, pipe, acoustic and thermal insulation.


Equivalency
Type: Equivalency
Post Date: 29 May, 2018

Global GreenTag Standard v4.0 and PhD Methodology have been accepted as an alternative for the requirements of Feature 25 Part 1.


Equivalency
Type: Equivalency
Post Date: 29 May, 2018

Products certified under the Good Environmental Choice Australia (GECA) Furniture, Fittings, Foam and Mattresses (Level A) (FFF&M v3.0-2017) standard are considered to meet the toxic material reduction restrictions of Feature 25 Part 1, 2, 3 and 5.


Equivalency
Type: Equivalency
Post Date: 29 May, 2018

Products certified under the Good Environmental Choice Australia (GECA) Furniture & Fittings (Level B) (FF v3.0-2017) standard are considered to meet the toxic material reduction restrictions of Feature 25 Part 1, 2 and 5.


Equivalency
Type: Equivalency
Post Date: 29 May, 2018

Global GreenTag Standard v4.0 and PhD Methodology have not been accepted as an alternative for the requirements of Feature 25 Part 2, 3, 4 and 5.


Equivalency
Type: Equivalency
Post Date: 29 May, 2018

Products certified under Good Environmental Choice Australia (GECA) Furniture & Fittings (Level B) (FF v3.0-2017) standard have not been accepted as alternatives for the requirements of Feature 25 Part 3.
Note that this GECA standard does not account for all the phthalates stated in this requirement.


Equivalency
Type: Equivalency
Post Date: 15 Apr, 2018

Products certified under Good Environmental Choice Australia (GECA) Floor Coverings (GECA 25-2011 v2i) standard are considered to meet the toxic material reduction restrictions of Feature 25, Parts 2 and 3.


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "(Please refer to Table A3 for additional details.)"


Amendment
Type: Amendment
Post Date: 24 Oct, 2016

To the last line of the first paragraph of the feature description, add: "All parts of this feature only apply to materials installed inside the weather proofing membrane of a project. (Please refer to Table A3 for additional details)"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To minimize the impact of hazardous building material chemicals on indoor air quality and protect the health of manufacturing and maintenance workers.'


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add Owner Letter of Assurance as required documentation.


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add Contractor Letters of Assurance as required documentation.


Feature 26: Enhanced material safety

Type Description
Amendment
Type: Amendment
Post Date: 01 Feb, 2019

Have a Cradle to Cradle™ Material Health Certified with a V2 Gold or Platinum or V3 Bronze, Silver, Gold or Platinum Material Health Score. Are Cradle to Cradle Certified™ products with a Bronze, Silver, Gold or Platinum level in the Material Health category or products with a Bronze, Silver, Gold or Platinum level Material Health Certificate from the Cradle to Cradle Products Innovation Institute.


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 15 Aug, 2018

Projects may meet Feature 26 Part 1 through the application of REACH Optimization. Specifically, use of furnishings, built-in furniture, interior finishes and finish materials that document their material ingredient optimization for at least 25% (by cost) via the following paths:

  • Projects meet REACH criteria for all Substances of Very High Concern (SVHC) as listed on the REACH Authorization or Candidate list.
  • Projects have fully inventoried all Substances of Very High Concern (SVHC) as listed on the REACH Authorization or Candidate list to 100 ppm (0.01%).

Equivalency
Type: Equivalency
Post Date: 29 May, 2018

The Good Environmental Choice Australia (GECA) Furniture & Fittings, Foam & Mattresses (Level A) (FFF&M v3.0-2017) standard has not been accepted as an alternative for the requirements of Feature 26 Part 1. Note that while most LBC Red List substances are prohibited in the GECA Furniture Level A standard, the GECA Furniture Level A standard allows products that contain formaldehyde-based additives subject to a certain air emissions limit, whereas the Red List prohibits the use of added formaldehyde (Section 4.1 Criterion 13).


Equivalency
Type: Equivalency
Post Date: 29 May, 2018

The Good Environmental Choice Australia (GECA) Furniture & Fittings, Foam & Mattresses (Level B) (FFF&M v3.0-2017) standard has not been accepted as an alternative for the requirements of Feature 26 Part 1. Note that while most LBC Red List substances are prohibited in the GECA Furniture Level B standard, the GECA Furniture Level A standard allows products that contain formaldehyde-based additives subject to a certain air emissions limit, whereas the Red List prohibits the use of added formaldehyde (Section 4.1 Criterion 13).


Equivalency
Type: Equivalency
Post Date: 16 Nov, 2017

The Global GreenTag Standard v4.0 and PhD Methodology are accepted as an alternative to the requirements for Feature 26 Part 1.


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

Remove: “products by cost (including furnishings, built-in furniture, all interior finishes and finish materials”. Add: “all furnishings, built-in furniture, interior finishes, and finish materials (calculated by cost)"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "At least 25% of products by cost (including furnishings, built-in furniture, all interior finishes and finish materials) meet some combination of the certifications described in requirements b and c".


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "At least one of the following requirements is met". Add: "At least 25% of products by cost (including furnishings, built-in furniture, all interior finishes and finish materials) meet one or more of the following requirements"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "The project completes all Imperatives in the Materials Petal under the Living Building Challenge 3.0". Add: "Have a Declare: Living Building Challenge Red List Free, Declare: Living Building Challenge Compliant, or Living Product Challenge label"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "At least 25% of products by cost (including furnishings, built-in furniture, all interior finishes and finish materials) are Cradle to Cradle™ Material Health Certified with a V2 Gold or Platinum or V3 Bronze, Silver, Gold or Platinum Material Health Score". Add: "Have a Cradle to Cradle™ Material Health Certified with a V2 Gold or Platinum or V3 Bronze, Silver, Gold or Platinum Material Health Score."


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "At least 25% of products by cost (including furnishings, built-in furniture, all interior finishes and finish materials) have no GreenScreen® Benchmark 1, List Translator 1 or List Translator Possible 1 substances over 1,000 ppm, as verified by a qualified Ph.D. toxicologist or Certified Industrial Hygienist". Add: "Have no GreenScreen® Benchmark 1, List Translator 1 or List Translator Possible 1 substances over 1,000 ppm, as verified by a qualified Ph.D. toxicologist or Certified Industrial Hygienist"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To minimize the impact of hazardous building material ingredients on indoor air quality and protect the health of manufacturing and maintenance workers.'


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add Contractor Letter of Assurance as required documentation, add Owner Letter of Assurance as required documentation.


Feature 27: Antimicrobial activity for surfaces

Type Description
Amendment
Type: Amendment
Post Date: 31 Aug, 2020

Coated with or comprised of a material that is abrasion-resistant, non-leaching and meets EPA testing requirements for antimicrobial activity.


Amendment
Type: Amendment
Post Date: 05 Feb, 2018

In part title, remove: "Locker Room". Add: "Changing Room". In part description, remove: "locker rooms". Add: "changing rooms"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "that has an output of at least 4 mW/cm²" after "UV cleaning device"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To reduce occupant exposure to both harmful pathogens and hazardous cleaning agents.'


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add annotated architectural drawing or operations schedule as required documentation, remove architect Letter of Assurance.


Feature 28: Cleanable environment

Type Description
Amendment
Type: Amendment
Post Date: 05 Feb, 2018

In part title, remove: "Locker Rooms". Add: "Changing Rooms". In part description, remove: "locker rooms". Add: "changing rooms"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "Free of sharp internal angles, corners and crevices". Add: "Free of crevices and other hard-to-reach places"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To reduce occupant exposure to pathogens on high-touch surfaces.'


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add on-site spot checks as required verification.


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add Contractor Letters of Assurance as required documentation.


Feature 29: Cleaning equipment

Type Description
Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To reduce occupant exposure to both harmful pathogens and hazardous chemicals through the use of high quality cleaning equipment and the proper storage of cleaning agents.'


Amendment
Type: Amendment
Post Date: 10 Feb, 2016

Remove Part 1b. Update part lettering by changing “c. Mops do not have to be wrung by hand.” to “b. Mops do not have to be wrung by hand”, and changing "d. Vacuum cleaners contain filters with a HEPA rating." to "c. Vacuum cleaners contain filters with a HEPA rating."


Feature 30: Fundamental water quality

Type Description
Equivalency
Type: Equivalency
Post Date: 17 Oct, 2018

ISO 7027-1:2016 has been accepted as an alternative for the Performance Verification testing equipment and method requirements of Feature 30, Part 1.
Please note that ISO 7027-compliant devices must be capable of displaying results in NTU and all results must be reported in NTU.
Also note that this equivalency does not authorize project teams to select, request, or dispute the specific testing methodology used during performance testing for a project.


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To limit the presence of sediment and water-borne pathogens in water designated for human contact.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

In Part 1, change “Turbidity of the water sample is less than 0.3 NTU” to “Turbidity of the water sample is less than 1.0 NTU”.


Feature 31: Inorganic contaminants

,

Feature 31: Organic contaminants

,

Feature 31: Agricultural contaminants

,

Feature 31: Public water additives

Type Description
Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 02 Jan, 2019

Core and Shell Projects located in China and member countries of ASEAN may provide at least one drinking water dispenser on every floor located within 30 meters of the entrances to leased spaces, instead of providing water that meets the thresholds in these features to the leased spaces or granting fiscal allowances to tenants to obtain drinking water of similar quality. Note that application of this AAP will preclude achievement of Feature 36 and Feature 37.


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 02 Jan, 2019

Core and Shell Projects located in China and member countries of ASEAN may provide at least one drinking water dispenser on every floor located within 30 meters of the entrances to leased spaces, instead of providing water that meets the thresholds in these features to the leased spaces or granting fiscal allowances to tenants to obtain drinking water of similar quality. Note that application of this AAP will preclude achievement of Feature 36 and Feature 37.


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 02 Jan, 2019

Core and Shell Projects located in China and member countries of ASEAN may provide at least one drinking water dispenser on every floor located within 30 meters of the entrances to leased spaces, instead of providing water that meets the thresholds in these features to the leased spaces or granting fiscal allowances to tenants to obtain drinking water of similar quality. Note that application of this AAP will preclude achievement of Feature 36 and Feature 37.


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 02 Jan, 2019

Core and Shell Projects located in China and member countries of ASEAN may provide at least one drinking water dispenser on every floor located within 30 meters of the entrances to leased spaces, instead of providing water that meets the thresholds in these features to the leased spaces or granting fiscal allowances to tenants to obtain drinking water of similar quality. Note that application of this AAP will preclude achievement of Feature 36 and Feature 37.


Feature 31: Inorganic contaminants

Type Description
Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To limit the presence of inorganic contaminants in drinking water.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

Change “All water being delivered to the project area for human consumption meets the following limits:” to “All water being delivered to the project area for human consumption (at least one water dispenser per project) meets the following limits:


Feature 32: Organic contaminants

Type Description
Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 02 Jan, 2019

Core and Shell Projects located in China and member countries of ASEAN may provide at least one drinking water dispenser on every floor located within 30 meters of the entrances to leased spaces, instead of providing water that meets the thresholds in these features to the leased spaces or granting fiscal allowances to tenants to obtain drinking water of similar quality. Note that application of this AAP will preclude achievement of Feature 36 and Feature 37.


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To limit the presence of organic contaminants in drinking water.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

Change “All water being delivered to the project area for human consumption meets the following limits:” to “All water being delivered to the project area for human consumption (at least one water dispenser per project) meets the following limits:


Feature 33: Agricultural contaminants

Type Description
Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 02 Jan, 2019

Core and Shell Projects located in China and member countries of ASEAN may provide at least one drinking water dispenser on every floor located within 30 meters of the entrances to leased spaces, instead of providing water that meets the thresholds in these features to the leased spaces or granting fiscal allowances to tenants to obtain drinking water of similar quality. Note that application of this AAP will preclude achievement of Feature 36 and Feature 37, which must be met per “Appendix I: Core & Shell Scope”.


Amendment
Type: Amendment
Post Date: 07 Jun, 2018

For Part 2a, remove: "10 mg/L as nitrogen". Add "11 mg/L as nitrogen"


Amendment
Type: Amendment
Post Date: 26 Jul, 2017

Remove "Nitrate less than 10 mg/L nitrogen". Add "Nitrate less than 50 mg/L (10 mg/L as nitrogen)"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To limit the presence of agricultural contaminants in drinking water.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

Change “All water being delivered to the project area for human consumption meets the following limits:” to “All water being delivered to the project area for human consumption (at least one water dispenser per project) meets the following limits:


Feature 34: Public water additives

Type Description
Amendment
Type: Amendment
Post Date: 31 Jul, 2019

a. ResidualTotal chlorine less than 0.64 mg/L.
b. Residual cChloramine less than 4 mg/L.


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 02 Jan, 2019

Core and Shell Projects located in China and member countries of ASEAN may provide at least one drinking water dispenser on every floor located within 30 meters of the entrances to leased spaces, instead of providing water that meets the thresholds in these features to the leased spaces or granting fiscal allowances to tenants to obtain drinking water of similar quality. Note that application of this AAP will preclude achievement of Feature 36 and Feature 37.


Amendment
Type: Amendment
Post Date: 01 Nov, 2018

In part description, remove: "and showers/baths" after "…(at least one water dispenser per project)"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To limit the presence of certain disinfectants, disinfection byproducts and fluoride in drinking water.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

Change “All water being delivered to the project area for human consumption or showers/baths meets the following limits:” to “All water being delivered to the project area for human consumption (at least one water dispenser per project) and showers/baths meets the following limits:


Amendment
Type: Amendment
Post Date: 06 May, 2016

Change “All water being delivered to the project area for human consumption meets the following limits:” to “All water being delivered to the project area for human consumption (at least one water dispenser per project) meets the following limits:


Feature 35: Periodic water quality testing

Type Description
Amendment
Type: Amendment
Post Date: 01 Nov, 2018

For Part 2a, remove: "water quality parameters listed in the WELL Building Standard". Add: ", at minimum, water quality parameters listed in Feature 35 Part 1 of the WELL Building Standard"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To maintain high quality water through regular water quality monitoring and remediation.'


Interpretation
Type: Interpretation
Post Date: 24 Oct, 2016
Inquiry: Feature 35 (Periodic Water Quality Testing) Part 1 (Quarterly Testing) requires the project team to test for metals/metalloids on a quarterly basis. How should this testing be conducted?
Ruling: Testing procedures must follow the testing protocol outlined in the WELL Performance Verification Guidebook for Feature 31 (Inorganic Contaminants). If possible, sample points that have not been selected in the previous three quarters should be used.

Feature 38: Water treatment

Type Description
Amendment
Type: Amendment
Post Date: 31 Aug, 2020

b. Filter rated to remove suspended solids with pore size 1.5 µm or lesstested with standard NSF 42 or EN 13443-2.


Feature 36: Water treatment

Type Description
Equivalency
Type: Equivalency
Post Date: 05 Jun, 2019

Hong Kong's Code of Practice for Prevention of Legionnaires’ Disease has been accepted as an equivalent for ASHRAE 188-2015 of Feature 36 Part 5.


Amendment
Type: Amendment
Post Date: 07 Jun, 2018

For Part 3, remove: "to remove microbial cysts". Add: "to remove or reduce microbial cysts"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "or showers/baths"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "or showers/baths"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "or showers/baths"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To improve water quality by requiring the use of water treatment systems.'


Amendment
Type: Amendment
Post Date: 10 Feb, 2016

In Part 2a, remove "Filter rated to remove suspended solids." And replace with "Filter rated to remove suspended solids with pore size 1.5 µm or less."


Amendment
Type: Amendment
Post Date: 10 Feb, 2016

In Part 3b, remove "NSF filter rated to remove" and replace with "Filter rated by the NSF to remove"


Feature 37: Drinking water promotion

Type Description
Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To promote the consumption of water by making high quality drinking water easily accessible to occupants.'


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 24 Oct, 2016

For regularly occupied spaces that are not within 30 meters (100 feet) of a drinking water station, pitchers of filtered water and glasses may be provided that are monitored and refilled through the day. The Operations Schedule for the project must include information regarding the provision (location and quantities) of water and the monitoring and refilling of pitchers if this strategy is used.


Feature 38: Fruits and vegetables

Type Description
Amendment
Type: Amendment
Post Date: 20 Oct, 2017

For Part 1b, add: "(containing no added sugar)" after "...options are fruits"