D.C. Mun. Regs. tit. 12, r. 12-K705
Strike Table 705.1.1, Metering Requirements, of the International Green Construction Code in its entirety and insert new Table 705.1.1 in the Green Construction Code in its place to read as follows:
TABLE 705.1.1 METERING REQUIREMENTS
APPLICATION | REQUIREMENTS |
Irrigation | Irrigation systems that are automatically controlled shall be metered. |
Tenant spaces | Tenant spaces that are estimated to consume over 1000 gallons of water per day shall be metered individually. |
Onsite water collection systems | The makeup water lines supplying onsite water collection systems shall be metered. |
Ornamental water features | Ornamental water features with a permanently installed water supply shall be required to utilize a meter on makeup water supply lines. |
Pools and in-ground Indoor and outdoor pools and in- ground spas shall be required to spas utilize a meter on makeup water supply lines. | |
Cooling towers | Cooling towers of 100 tons capacity or greater or groups of towers shall be required to utilize a meter on makeup water and blow-down water supply lines. |
Steam boilers | The makeup water supply line to steam boilers anticipated to draw more than 100,000 gallons annually or having a rating of 500,000 Btu/h or greater shall be metered. |
Industrial processes | Industrial processes consuming more than 1,000 gallons per day on average shall be metered individually. |
Evaporative coolers | Evaporative coolers supplying in excess of 0.6 gpm, on average, makeup water shall be. |
Fluid coolers and chillers | Water-cooled fluid coolers and chillers that do not utilize closed-loop recirculation shall be metered. |
Roof spray systems | Roof spray systems for irrigating vegetated roofs or thermal conditioning shall be metered. |
For SI: 1 gallon = 3.8 L, 1 gallon per minute = 3.8 Lpm, 1 ton = 12,000 Btu, 1 British thermal unit per hour = 0.00029 kWh.
D.C. Mun. Regs. tit. 12, r. 12-K705