Multifamily
4. Water Conservation
4.2 Efficient Irrigation
Mandatory if irrigation is necessary
If irrigation is necessary, use recycled greywater, roof water, collected site run-off or an irrigation system that will deliver up to 95 percent of the water supplied.
Green Communities and the Green Communities Criteria are a national initiative of Enterprise Community Partners to transform the affordable housing sector. For more information go to www.greencommunitiesonline.org
Important Considerations
Codes and Regulations
Minnesota Rules, Chapter 7080 has some restrictions on the use of greywater and may not allow its use for irrigation.
Pollution Control Agency
CHAPTER 7080 Minnesota Pollution Control Agency Design Standards for Individual Subsurface Sewage Treatment Systems Compliance Criteria: 7800.1500, Subpart 2Graywater from dwellings structures without plumbing that originated from hand-carried water must not be discharged directly to surface waters, drainageways, or poorly drained soils; in a manner or volume harmful to the environment or public health; or in a manner that creates a public health nuisance as determined by the local unit of government.
Specifications
32 01 80 Operation of Irrigation System 32 80 00 (02810) Irrigation Systems Specify irrigation systems that meet performance goals of the requirement 33 16 20 (11201) Rainwater Harvesting Specify system that will provide needed volume of water
The information above refers to the Construction Specification Institute's (CSI) MasterFormat. The numbers listed above refer to some of the most relevant but not all of the possible MasterFormat sections related to this strategy. The 6-digit numbers refer to the newer 2004 MasterFormat edition. Numbers in parenthesis refer to the older 1995 edition.
