D.C. Mun. Regs. tit. 12, app 12-K-A r. 12-K-A107
Strike Table A107 in Appendix A of the International Green Construction Code in its entirety and insert new Table A107 in Appendix A of the Green Construction Code in its place to read as follows:
TABLE A107
WATER RESOURCE CONSERVATION AND EFFICIENCY
PROJECT ELECTIVES
SECTION | DESCRIPTION | MINIMUM NUMBER OF ELECTIVES REQUIRED AND ELECTIVES SELECTED |
A107.2 | Onsite waste water treatment | Yes [] No [] |
A107.3 | Alternate onsite nonpotable water for outdoor hose connections and irrigation | Yes [] No [] |
A107.4 | Alternate onsite nonpotable water for plumbing fixture flushing | Yes [] No [] |
A107.7 | Alternate onsite nonpotable water for industrial process makeup water | Yes [] No [] |
A107.8 | Alternate onsite nonpotable water for cooling tower makeup water | Yes [] No [] |
A107.9 | Gray water collection | Yes [] No [] |
A107.10 | Condensate drainage recovery | Yes [] No [] |
A107.11 | Wet-hood exha ust scrubber system | Yes [] No [] |
Strike Section A107.3 in Appendix A of the International Green Construction Code in its entirety and insert new Section A107.3 in Appendix A of the Green Construction Code in its place to read as follows:
Alternate onsite nonpotable water for outdoor hose connections and irrigation project elective. Where projects are intended to qualify for an alternate onsite nonpotable water for outdoor hose connections and irrigation project elective in accordance with Section A107.3, sillcocks, hose bibs, wall hydrants, yard hydrants, and other outdoor outlets or any connection used for irrigation shall be supplied by nonpotable water providing 50 gallons of storage per 250 square feet of landscaping. Any irrigation system for the project site shall be controlled by a qualifying smart controller that uses evapotranspiration (ET) and weather data to adjust irrigation schedules or an on-site rain or moisture sensor that automatically shuts the system off after a predetermined amount of rainfall or sensed moisture in the soil. Qualifying smart controllers shall be tested in accordance with IA SWAT Climatological-Based Controllers 8th Draft Testing Protocol. Smart controllers that use ET shall use t he following inputs for calc ulating appropriate irrigation amounts:
Exception: A temporary potable water irrigation system used exc lusively for the establishment of new landscape shall be exempt from this requirement. Temporary potable water irrigation systems shall be removed or permanently disabled at such time as the landscape establishment period has expired.
Projects shall have a minimum of 3 percent of site covered in landscaping to achieve the elective. Intens ive green roofs or roof portions are allowed to count towards this credit. Extensive green roofs are not allowed to count towards this elective.
Strike Sections A107.4.1 through A107.4.3 in Appendix A of the International Green Construction Code in their entirety without substitution.
Strike Sections A107.5, A107.5.1, A107.5.2, and A107.5.3 in Appendix A of the International Green Construction Code in their entirety without substitution.
Strike Sections A107.6, A107.6.1, and A107.6.2 in Appendix A of th e International Green Construction Code in their entirety without substitution.
Strike Section A107.8 in Appendix A of the International Green Construction Code in its entirety and insert new Section A107.8 in Appendix A of the Green Construction Code in its place to read as follows:
Alternate onsite nonpotable water for cooling tower makeup water project elective.
Where projects are intended to qualify for an alternate onsite nonpotable water for cooling tower makeup water project elective in accordance with Section A107.7, nonpotable water shall be utilized for cooling tower makeup water in accordance with the requirements of Section 703.7.
Strike Section A107.9 in Appendix A of the International Green Construction Code in its entirety and insert new Section A107.9 in Appendix A of the Green Construction Code in its place to read as follows:
Gray water collection project elective. Where projects are intended to qualify for a gray water collection project elective in accordance with Section A107.8, waste water from lavatories, showers, bathtubs, clothes washers, and laundry trays shall be collected for reuse onsite.
Insert new Sections A107.10 and A107.11 in Appendix A of the Green Construction Code to read as follows:
Condensate drainage recovery. Projects that are pursuing a condensate drainage recovery project selective shall collect 100 percent of condensate for reuse in applications such as water features, fountains, gray water collection systems and rainwater collection sys tems.
Wet-hood exhaust scrubber systems. Where wet- hood exhaust scrubber systems are used, projects that are pursuing this elective shall incorporate a water recirculation system. The makeup water supplies for such systems shall be metered in accordance with Section 705.1.
Washdown systems. Hoods incorporating washdown or rinsing systems for perchloric acid and similar chemicals shall utilize self-closing valves. Such systems shall be designed to drain automatically after each washdown process has been completed.
Water sources. Where suitable alternate onsite nonpotable water is available, makeup water supplies to the recirculation system of wet- hood exhaust scrubbers shall utilize alternate onsite nonpotable water or municipal reclaimed water of a water quality appropriate for the application.
D.C. Mun. Regs. tit. 12, app 12-K-A r. 12-K-A107