§ 851.


The terms used in this Article have the meaning set forth below:

Alternate Water Source: a source of non-potable water that includes graywater, on-site treated non-potable water, rainwater, and any other source approved by the Director.

Black water: wastewater containing bodily or other biological wastes, as from toilets, dishwashers, kitchen sinks and utility sinks.

City: the City and County of San Francisco.

Director: the Director of Public Health or any individual designated by the Director to act on his or her behalf.

District: a group of two or more parcels that share alternate water sources.

First certificate of occupancy: either a temporary certificate of occupancy or a Certificate of Final Completion and Occupancy as defined in San Francisco Building Code Section 109A, whichever is issued first.

Foundation Drainage: nuisance groundwater that is extracted to maintain a building’s or facility’s structural integrity and would otherwise be discharged to the City’s sewer system. Foundation drainage does not include non-potable groundwater extracted for a beneficial use that is subject to City groundwater well regulations.

General Manager: the General Manager of the San Francisco Public Utilities Commission, or any individual designated by the General Manager to act on his or her behalf.

Graywater: untreated wastewater that has not been contaminated by any toilet discharge, has not been affected by infectious, contaminated, or unhealthy bodily wastes, and does not present a threat from contamination by unhealthful processing, manufacturing, or operating wastes. “Graywater” includes, but is not limited to, wastewater from bathtubs, showers, bathroom sinks, lavatories, clothes washing machines, and laundry tubs, but does not include wastewater from kitchen sinks or dishwashers.

Multi-Family Residential Building: A building that contains three or more dwelling units.

Non-potable Water: Non-potable water collected from alternate water sources, treated, and intended to be used on the Project Applicant’s site or district parcels and is suitable for direct beneficial use.

Non-potable Water Engineering Report: Report submitted by project applicant to the Director describing the alternate water source system in accordance with the rules and regulations adopted by the Department of Public Health.

Non-residential: A building that contains occupancies other than dwelling units.

NSF 350 System: Any treatment system certified by NSF International to meet NSF/ANSI Standard 350 for Onsite Residential and Commercial Reuse Treatment Systems, as amended from time to time.

Permittee: owner or operator of an on-site treated non-potable water system.

Project Applicant: the person or entity applying for authorization to install and use an alternate water source project.

Rainwater: precipitation collected from roof surfaces or other manmade, aboveground collection surfaces.

Small Residential Building: A building that contains no more than two dwelling units.

Stormwater: Precipitation collected from at-grade or below grade surfaces.

Water Budget Documentation: An in-depth assessment of the project applicant’s non-potable water use, including survey information, water meter readings, water service billing information, alternate water source schematic drawings, or any other information deemed necessary by the General Manager.


(Added by Ord. 195-12, File No. 120717, App. 9/17/2012, Eff. 10/17/2012; amended by Ord. 208-13 , File No. 130765, App. 10/11/2013, Eff. 11/10/2013)


  • Plain Text
  • JSON