Entry Type ID Date Applicable Rating System Primary Credit Inquiry (LIs) Ruling (LIs) Related Addenda/LIs Related Resources Campus Applicable Internationally Applicable Country Applicability Reference Guide (Addenda) Page (Addenda) Location (Addenda) Description of Change (Addenda) "Reference Guide Correction" "100000209" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "84" "Paragraph below Table 1" "Replace the paragraph with the following:\n\nIn certain cases, faucets with low-flow rates are not appropriate. For\nexample, in kitchen sinks, faucets are used to fill pots and buckets.\nUsing a low-flow rate for tasks where the volume of water is\npredetermined does not save water and will likely cause user\ndissatisfaction and inefficiencies. Consider alternative strategies to\nreduce water use, such as installing special-use pot fillers and faucets or\nfoot pedal-operated faucets." "Reference Guide Correction" "100000207" "2009-11-02" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition" "84" "Table 1" "In the eighth row of the table in the ""Fixture"" column, remove the text ""and janitor"" so it becomes ""Kitchen sink faucets""" "Reference Guide Correction" "100000208" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "84" "Table 1" "In footnote ""b,"" replace ""2.0 gmp"" with ""2.0 gpm""" "Reference Guide Correction" "100000210" "2009-11-02" "Existing Buildings" "None" "Minimum indoor plumbing fixture and fitting efficiency addenda 11/02/2009" "Green Building Operations and Maintenance, 2009 edition" "87" "Table 3" "Replace the table with two tables as indicated in the supplemental documentation. (Note that this table was updated again on February 2, 2011)" "Reference Guide Correction" "100000211" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "87" "Table 4" "In the fifth row of the table in the ""Flow rate"" column, replace ""1.8 gpm"" with """"? 2.2 gpm""" "Reference Guide Correction" "100000212" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "87" "Table 4" "In the seventh row of the table in the ""Flow Fixture"" column, replace ""Low-flow shower"" with ""WaterSense shower""" "Reference Guide Correction" "100000213" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "87" "Table 4" "In the seventh row of the table in the ""Flow Rate"" column, replace ""1.8 gpm"" with ""? 2.0 gpm""" "Reference Guide Correction" "100000214" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "88" "First paragraph on page (above ""Baseline Case Water Consumption"" section)" "Replace the first sentence with ""Private or private use applies to plumbing fixtures in residences, apartments, and dormitories, to private (non-public) bathrooms in transient lodging facilities (hotels and motels), and to private bathrooms in hospitals and nursing facilities.""" "Reference Guide Correction" "100000215" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "90" "11. Resources" "In alphabetical order, insert the following text:\n\nAlliance for Water Efficiency\nhttp://www.allianceforwaterefficiency.org/\nThe Alliance for Water Efficiency provides information and assistance on\nwater conservation efforts." "Reference Guide Correction" "100000216" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "90" "11. Resources" "Remove the following text:\n\nFine Homebuilding Choosing a Toilet\nhttp://www.taunton.com/finehomebuilding/pages/h00042.asp\nThis article includes several varieties of water-efficient toilets." "Reference Guide Correction" "100000217" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "90" "11. Resources" "In the resource ""Rocky Mountain Institute, Water,"" replace the text below the resource header with the following:\n\nhttp://www.rmi.org/rmi/pid172\nThis portion of RMI\'s website is devoted to water resource efficiency." "Reference Guide Correction" "100000218" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "90" "11. Resources" "In the resource ""U.S. EPA, Watersense,"" underline the website ""http://www.epa.gov/watersense/.""" "Reference Guide Correction" "100000219" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "91" "11. Resources" "Remove the following text:\n\nU.S. EPA, Water Use Efficiency Program\nhttp://www.epa.gov/owm/water-efficiency\nThis website provides an overview of EPA\'s Water Use Efficiency\nProgram and information about using water more efficiently." "Reference Guide Correction" "100000220" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "91" "11. Resources" "Replace the resource ""Water Closet Performance Testing,"" with the following:\n\nWater Studies\nhttp://www.ebmud.com/resource-center/publications/studies\nThe site provides a variety of studies related to water." "Rating System Correction, Reference Guide Correction" "100000202" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" " Rating System: 15, Reference Guide: 81" "Requirements" "In the section, replace the three instances of ""1993"" with ""1994""" "Reference Guide Correction" "100000203" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "82" "1. Benefits and Issues to Consider" "In the first line of the first paragraph, remove the word ""potable""" "Reference Guide Correction" "100000204" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "82" "Environmental Issues" "In the first line of the second paragraph, remove the word ""potable""" "Reference Guide Correction" "100000205" "2010-04-14" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition" "82" "2. Related Credits" "In the fourth bulleted item, replace the text ""WE Credit 4: Cooling Tower Water Management"" with ""WE Credit 4.1: Cooling Tower Water Management - Chemical Management"" and, below as a new line, ""WE Credit 4.2: Cooling Tower Water Management - Nonpotable Water Source Use""" "Reference Guide Correction" "100000206" "2010-07-19" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "84" "Table 1" "In the fourth row of the table in the ""EPA WaterSense Standards"" column, replace ""1.5 - 2.0^b"" with ""2.0^b""" "Reference Guide Correction" "100000744" "2011-02-02" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "87" "Table 3a (see above)" "In the sixth row (""Lavatory Faucet"") row of the table in the 11/2/2009 addenda, replace the duration (sec) of 15 with 30" "Reference Guide Correction" "100000745" "2011-02-02" "Existing Buildings" "100001790, 100001791" "None" "Green Building Operations and Maintenance, 2009 edition$Green Building Operations and Maintenance, 2009 edition, updated April 2010" "88" "Below ""Baseline Case Water Consumption""" "Add in the following section:\n\nEligible Fixtures\n\nThis prerequisite is limited to savings generated by the following water using fixtures and fixture fittings as applicable to the project: water closets, urinals, lavatory faucets, showers, kitchen sink faucets and pre-rinse spray valves, as shown in Table 1. \n\nThe ""Kitchen sinks"" category encompasses all sinks in public or private buildings that are used with patterns and purposes similar to a sink in a residential kitchen; break room sinks would be included. However professional grade / commercial faucets such as those used in a commercial kitchen would not be included. The ""Public lavatory faucets"" and ""Private lavatory faucets"" categories encompass all sinks used primarily for hand-washing regardless of location. Faucets whose usage patterns and flow rates are regulated for medical or industrial purposes (e.g. laboratory sinks) and do not fall under the definition of private or public use are not included. Faucets used exclusively for filling operations (e.g. pot-filler) can be excluded. All other fixtures and fixtures fittings must be included in the calculations unless there are special circumstances that justify excluding them." "Reference Guide Correction" "100000916" "2011-05-09" "New Construction, Schools - New Construction, Core and Shell, Retail - New Construction, Healthcare, Commercial Interiors, Retail - Commercial Interiors, Existing Buildings" "730, 808, 1166, 2465, 5044, 5291, 1866" "None" "Green Building Design and Construction, 2009 edition $ Green Interior Design and Construction, 2009 edition $ Green Building Operations and Maintenance, 2009 edition" "BD+C RG: 168, BO+M RG: 84, ID+C RG: 102" "4. Implementation" "Remove the paragraph beginning with, ""Although water-efficient dishwashers..."" " "Reference Guide Correction" "100001065" "2011-11-01" "Existing Buildings" "100001066, 100001067, 100001069, 100001070, 100001071" "None" "Green Building Operations and Maintenance, 2009 edition $ Green Building Operations and Maintenance, 2009 edition, updated April 2010 " "BO+M RG: 88" "Occupancy" "After the first paragraph, insert the following text as a new paragraph:\n\n""For lodging projects, FTE and transient occupants are calculated per the typical methodology for the respective occupancy types. Hotel guests may be determined based on the number and size of guest room units in the project. Generally, assume 1.5 occupants per guest room and multiply the resulting total by 60% (average hotel occupancy per American Hotel & Lodging Association information) to determine the total number of hotel guests. Alternatively, occupants may be derived from actual historical occupancy numbers. \n\nFixture use assumptions for hotel guests follow the fixture assumptions for residential occupants. Accordingly, lavatories located in guest rooms are considered to be private lavatories. Additionally, day use guests at the hotel should be included in the value for transient / visitor occupants and are assumed to use common area restrooms. Per typical fixture use assumptions, this category of occupants assumes zero shower uses throughout the day. \n\nExample: 123 room hotel\nTotal Hotel Guests = 123*1.5 * 60%\nTotal Hotel Guests = 111""" "Reference Guide Correction" "100001066" "2011-11-01" "Existing Buildings" "100001065, 100001067, 100001069, 100001070, 100001071, 100001770" "None" "Green Building Operations and Maintenance, 2009 edition $ Green Building Operations and Maintenance, 2009 edition, updated April 2010 " "BO+M RG: 84" "4. Implementation" "Insert the following paragraph at the bottom of the page:\n\n""For hospitality projects, commercial kitchen sinks and bar sinks including pot sinks, prep sinks, wash down, and cleaning sinks are considered process water and are not included in the water use calculations. Hand washing sinks located in commercial kitchen areas that do not pass through a grease interceptor should be included in the water use calculations under the kitchen sink category.""\n" "Reference Guide Correction" "100001067" "2011-11-01" "Existing Buildings" "100001065, 100001066, 100001069, 100001070, 100001071, 100001771" "None" "Green Building Operations and Maintenance, 2009 edition $ Green Building Operations and Maintenance, 2009 edition, updated April 2010 " "BO+M RG: 85" "Fixture Usage Groups" "At the end of the section, insert the following text as a new paragraph:\n\n""For hospitality projects, fixture usage groups generally include a usage group for guest rooms and a usage group for common areas and back of house. For the purposes of the credit calculations, assume that hotel guests use the fixtures and fittings in their room, employees use back of house and / or common areas, and transient guests use common area restrooms.""\n" "Reference Guide Correction" "100001694" "2012-10-01" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition $ Green Building Operations and Maintenance, 2009 edition, updated April 2010 " "BO+M RG: 91" "Definitions, blackwater" "Replace the first sentence with, ""Blackwater is wastewater containing urine or fecal matter that should be discharged to the sanitary drainage system of the building or premises in accordance with the International Plumbing Code.""" "Reference Guide Correction" "100001695" "2012-10-01" "Existing Buildings" "None" "None" "Green Building Operations and Maintenance, 2009 edition $ Green Building Operations and Maintenance, 2009 edition, updated April 2010 " "BO+M RG: 91" "Definitions, graywater" "Replace the definition of ""graywater"" with ""Graywater is untreated household waste water which has not come into contact with toilet waste. Graywater typically includes used water from bathtubs, showers, bathroom wash basins, and water from clothes-washer and laundry tubs, though definitions may vary. Some states and local authorities also allow kitchen sink wastewater to be included in graywater. Project teams should comply with the graywater definition established by the authority having jurisdiction in the project area.""" "LEED Interpretation" "10010" "2011-05-09" "New Construction, Existing Buildings, Commercial Interiors, Core and Shell, Schools - New Construction" "The installation of bedside patient care units, which is a combined toilet and lavatory, is required for some patient rooms. Can the patient care unit be excluded from the calculations since there are no low-flow options available?" "All fixtures that are covered by the EPAct 1992 must be included in the credit calculations, even if there are no low-flow options available. The use of these fixtures by only the patients in a limited area can be factored into the calculations. " "None" "None" "LEED Interpretation" "10211" "2012-07-01" "New Construction, Existing Buildings, Commercial Interiors, Core and Shell, Schools - New Construction, Retail - New Construction, Retail - Commercial Interiors, Healthcare" "Can municipally supplied treated seawater for toilet flushing be used as a strategy for earning WEp1 and WEc1 Water Use Reduction?" "No, municipally supplied sources of non-potable water, including seawater, are not applicable to the WE fixture water use reduction credits, including WEp1 (D+C, EBOM) and WEc1 (CI) Water Use Reduction, or considered graywater. As stated in LI 1551 (12/12/2006) This credit focuses on fixture efficiency and on-site water reuse. In addition, the Water Use Reduction Additional Guidance document (updated 8/16/2010, http://www.usgbc.org/ShowFile.aspx?DocumentID=6493), confirms that the focus of the prerequisite is water efficiency of the installed fixtures, regardless of the water source, and only on-site water reuse is available as an alternative compliance path. \n However, municipally treated wastewater (including treated seawater) applies to SSc1 - Path 9 Innovative Wastewater Technologies (CI), WEc2, Innovative Wastewater Technologies (BD+C), and can be used if the two conditions of LEED Interpretation 10117 are met: 1) the seawater is municipally supplied or explicitly approved by the municipality and 2) meets all applicable codes and permitting requirements, so as not to contaminate the municipal wastewater system with high salinity. For EBOM projects, where no wastewater credit is available, the project may apply for innovation credit for use of this strategy.\n\n **Update October 1, 2013: Note that LEED Interpretation 10117 has been updated to clarify that seawater must be treated to appropriate levels for non-potable uses in order to apply to WEc2 Innovative Wastewater Technologies; seawater that is treated to potable drinking water standards would not apply. Any on-site energy use to desalinate the seawater must be included in the EAp2/c1 calculations. Refer to the guidance document. Applicability of Seawater in Water Efficiency credits also updated." "1551, 10117, 10212, li-10284, 10284" "Seawater guidance" "LEED Interpretation" "10214" "2012-07-01" "New Construction, Existing Buildings, Core and Shell, Schools - New Construction" "Can a LEED-NC project without eligible water fixtures be exempt from WEp1 Water Use Reduction?" "A project without eligible water fixtures in the LEED-NC project boundary is exempt from WEp1. Should such a project wish to pursue points under WE Credit 3, they may do so by evaluating WEc3 performance based upon all of the fixtures that are necessary to meet the needs of the project occupants, even if they are located outside the project boundary.\n **Update October 1, 2012: Has been made applicable to LEED for Schools v2007 and v2009.\n **Update October 1, 2013: Applicable credits were updated. This ruling does not apply to Core and Shell projects." "None" "None" "Rating System Correction" "100001787" "2013-04-01" "New Construction, Existing Buildings, Commercial Interiors, Core and Shell, Schools - New Construction" "100000920, 100000753, 100000990, 100001788" "None" "X" "Green Building Design and Construction, 2009 edition $ Green Building Design and Construction, 2009 edition, updated June 2010 $ Green Interior Design and Construction, 2009 edition $ Green Interior Design and Construction, 2009 edition, updated June 2011 $ Green Building Operations and Maintenance, 2009 edition $ Green Building Operations and Maintenance, 2009 edition, April 2010 updated" "BD+C RG 1st ed: 171 $ BD+C RG 2nd ed: 171 $ BO+M RG 1st ed: 87 $ BO+M RG 2nd ed: 87 $ ID+C RG 1st ed: 105 $ ID+C RG 2nd ed: 105" "Table 2a for BDC and IDC and Table 3a EBOM" "Autocontrol faucet baseline Addenda (all rating systems). In the 2/2/2011 Addenda, replace the baseline in the related note below table with “Default duration for the metering type / autocontrol lavatory faucet is 0.25 gallons per cycle (gpc) for the baseline case and 12 seconds for the design case.” " "Rating System Correction" "100001811" "2014-04-02" "Existing Buildings" "None" "LEED 2009 EBOM reference guide supplement with India ACPs" "X" "India" "Green Building Operations and Maintenance, Green Building Operations and Maintenance 2009 Edition (Updated April 2010)" "RS:16, 17; RG:81, 82" "Requirements" "Under Requirements, add the following sentence in the first paragraph: “Projects in Europe may use values defined by European Standards, and projects in India may use values defined by the 2011 International Plumbing Code- India and the 2013 Green Plumbing Code Supplement – India.”\n\n Under Requirements, revise the second to last paragraphs: “Demonstrate fixture and fitting performance through calculations to compare the water use of the as-installed fixtures and fittings with the use of UPC- or IPC-compliant fixtures and fittings, or alternatives for Europe and India as explained in the LEED Reference Guide for Green Building Operations & Maintenance, 2009 Edition.”\n\n Deleted the following table: Europe Standards and Well Standards.\n\n Under ""Potential Technologies & Strategies"" revise: “or the requirements for Europe listed in the table” to: “or the alternatives for Europe and India listed above.”\n\n"