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

Periodic water quality testing

Changing industrial practices and temporal variations in temperature, pH and weather may affect the leaching rate of inorganic metals into drinking water sources. In most cases, a one-time test and the use and maintenance of appropriate filters is sufficient to provide good quality water. However, where possible, more routine testing can help to reaffirm that a building is consistently receiving high quality water.

Quarterly testing for inorganic metals ensures that water quality is maintained year-round. This feature requires that detailed records are kept of all tests, and that a remediation plan is in place for cases where unacceptable water quality has been detected.

Part 1: Sufficient Lighting

Outdoor lighting meets the following requirements:

a.126 Emit no light above the horizontal plane.
b.140 Use shielding so that the angle of viewing is not less than 80°.
c.139 Able to produce a maintained average of at least 10 to 30 lux [1 to 3 fc] as measured on vertical surfaces 1.5 m [5 ft] above the ground.
Part 2: Water Data Record Keeping and Response

Projects provide a written policy specifying:

a. Detailed enforcement strategies for monitoring and keeping record of water quality parameters listed in the WELL Building Standard.
b. Records be kept for a minimum of 3 years, including full data from field inspectors or laboratory results where appropriate.
c. Detailed plan for action and remediation of unacceptable conditions.
Nervous
Immune
Digestive
Urinary

Applicability Matrix

Core & Shell Tenant Improvement New Construction
Part 1: Sufficient Lighting - - -
Part 2: Water Data Record Keeping and Response - O O
Commercial Kitchen Schools Multifamily Residential Restaurant Retail
Part 1: Sufficient Lighting - P - - -
Part 2: Water Data Record Keeping and Response O O O O O

Verification Methods Matrix

Letters of Assurance Annotated Documents On-Site Checks
PART 1 (Design)
Sufficient Lighting
PART 2 (Protocol)
Water Data Record Keeping and Response
Operations Schedule
53

World Health Organization. Guidelines for Drinking-water Quality Fourth Edition. Geneva: World Health Organization; 2011: 26, 371, 383, 416, 433.

35.1.c

The WHO Guidelines for Drinking-water Quality, Fourth Edition notes that some hazards "may arise intermittently, often associated with seasonal activity or seasonal conditions."

35.1.d

The WHO Guidelines for Drinking-water Quality, Fourth Edition notes that some hazards "may arise intermittently, often associated with seasonal activity or seasonal conditions."

35.1.a

The WHO Guidelines for Drinking-water Quality, Fourth Edition notes that some hazards "may arise intermittently, often associated with seasonal activity or seasonal conditions."

35.1.b

The WHO Guidelines for Drinking-water Quality, Fourth Edition notes that some hazards "may arise intermittently, often associated with seasonal activity or seasonal conditions."