(a) Large Development Projects shall be constructed, operated, and maintained in compliance with the following:
(1) For Large Development Projects and District Development Projects that submit an application for a site permit on or prior to January 1, 2022, an Alternate Water Source System shall be constructed, operated, and maintained. All toilet and urinal flushing and irrigation demands shall be met through the collection and reuse of available onsite Rainwater, Graywater, and Foundation Drainage, to the extent required by application of the Water Budget Documentation developed for each Development Project.
(2) For Large Development Projects and District Development Projects consisting solely of Commercial Buildings that submit an application for a site permit after January 1, 2022, an Alternate Water Source System shall be constructed, operated, and maintained. Toilet and urinal flushing demands and drain trap priming are required non-potable uses. The collection and reuse of Blackwater and Condensate (required Alternate Water Sources) shall be used for required non-potable uses to the extent required by application of the Water Budget Documentation.
(3) For Large Development Projects and District Development Projects consisting solely of Multi-Family Residential Buildings or Mixed-Use Residential Buildings that submit an application for a site permit after January 1, 2022, an Alternate Water Source System shall be constructed, operated, and maintained. Toilet and urinal flushing, clothes washing, drain trap priming, and irrigation demands are required non-potable uses. The collection and reuse of Graywater and Condensate (required Alternate Water Sources) shall be used for required non-potable uses to the extent required by application of the Water Budget Documentation.
(4) For District Development Projects that consist of any combination of Commercial, Residential and Mixed-Use Residential Buildings, and that install a District System, toilet and urinal flushing, clothes washing, drain trap priming, and irrigation demands are required non-potable uses. The collection and reuse of Graywater and Condensate (required Alternate Water Sources) shall be used for required non-potable uses to the extent required by application of the Water Budget Documentation.
(5) For District Development Projects that consist of any combination of Commercial, Residential and Mixed-Use Residential Buildings, and that install building-by-building Alternate Water Source Systems, the required non-potable uses and required Alternate Water Sources shall be the uses and sources for each category of building type describe in subsections (a)(2) and (a)(3) of this section.
(b) A Large Development Project Applicant shall use the Water Budget Calculator as follows:
(1) For Large Development Projects that submit an application for a site permit on or prior to January 1, 2022, a Large Development Project Applicant shall use the Water Budget Calculator, as provided by the General Manager’s rules, to prepare a Water Budget assessing the amount of Rainwater, Graywater, and Foundation Drainage produced on site, and the planned toilet and urinal flushing and irrigation demands.
(2) For Large Development Projects that submit an application for a site permit after January 1, 2022, a Large Development Project Applicant shall use the Water Budget Calculator, as provided by the General Manager’s rules, to prepare a Water Budget assessing the amount of Alternate Water produced on site by the required Alternate Water Sources, and the amount of Alternate Water needed to supply the required non-potable uses.
(c) (3)1
(1) For Large Development Projects that submit an application for a site permit on or prior to January 1, 2022, if, based on the Water Budget Documentation, the available supply from onsite sources exceeds the demands for toilet and urinal flushing and irrigation, 100% of those demands shall be met by using the available onsite sources. If, based on the Water Budget Documentation, the available supply from onsite sources is less than the demands for toilet and urinal flushing and irrigation, 100% of the available onsite supply shall be used to meet the demands for toilet and urinal flushing and irrigation. Available Blackwater or Stormwater supplies may be used instead of, or in addition to Rainwater, Graywater, and Foundation Drainage to meet the available onsite supply requirements calculated in accordance with the Water Budget Documentation requirements of this section 12C.4(c)(1).
(2)(1
For Large Development Projects that submit an application for a site permit after January 1, 2022, if, based on the Water Budget Documentation, the available supply from required Alternate Water Sources exceeds the demand from required non-potable uses, 100% of that demand shall be met by using the required Alternate Water Sources. If, based on the Water Budget Documentation, the available supply from required Alternate Water Sources is less than the demand from required non-potable uses, 100% of the available supply from required Alternate Water Sources shall be used to meet the demand from required non-potable uses.
(1) For Small Development Projects that submit an application for a site permit on or prior to January 1, 2022, Small Development Project Applicants shall use the Water Budget Calculator, as provided by the General Manager’s rules, to prepare a Water Budget assessing the amount of Rainwater, Graywater and Foundation Drainage produced on site, and the planned toilet and urinal flushing and irrigation demands.
(2) For Small Development Projects that submit an application for a site permit after January 1, 2022, Small Development Project Applicants shall use the Water Budget Calculator, as provided by the General Manager’s rules, to prepare a Water Budget assessing the supply from Alternate Water Sources available on site, and the demand from non-potable uses on site.
(e) Large Development Projects and District Development Projects shall be subject to excess use charges for exceeding potable water allocations determined in accordance with rules adopted by the General Manager. If a Large Development Project or District Development Project exceeds its allocation of potable water, the Permittee for the Large Development Project or District Development Project shall be subject to excess use charges on each unit of potable water exceeding the allocation at 300% (or 3x) the applicable water and wastewater rates.
(f) Large Development Projects and District Development Projects shall not provide Non-potable Water to water users or for purposes located outside the boundaries of the Large Development Project or District Development Project, except (1) as permitted in the sole discretion of the General Manager, or (2) when the water users or other purposes are located on property contiguous to, or across a public right of way from the boundaries of the Large Development Project or District Development Project, and the total amount of Non-potable Water produced by the Alternate Water Source System will not exceed 125% of the Large Development Project’s or District Development Project’s required non-potable demands as determined by the approved Water Budget Documentation.
(g) Additional Requirements for District Systems. All District Systems shall conform to the following requirements.: 1
(1) In addition to preparation of the Water Budget, Project Applicants for District Systems shall submit implementation plans to the General Manager for review and approval, in accordance with guidelines and rules established by the General Manager.
(2) District Systems shall be constructed in accordance with all applicable City utility standards and specifications.
(3) Individual buildings within a District Development Project shall not be required to demonstrate compliance as long as the individual 1
are provided service by an approved District System.
(h) The General Manager may approve Alternate District Systems that will achieve compliance with the purposes and objectives of this Article 12C, in accordance with guidelines and rules established by the General Manager. Alternative District Systems may include, but are not limited to, the dedication to the City, without cost to the City, of a District System’s treatment and/or conveyance system that is constructed in accordance with all applicable utility standards and specifications.
(i) City departments shall not issue an encroachment permit, a site permit, or a plumbing permit for a Large Development Project or a Small Development Project, or approve a Non-potable Water Engineering Report, prior to the General Manager’s determination that the Water Budget Documentation has been prepared in accordance with the General Manager’s rules for Water Budget calculations.
(j) Subdivision Approvals.
(1) Parcel Map or Tentative Subdivision Map Conditions. The Director of Public Works shall not approve a tentative subdivision map or a parcel map for any property unless a condition is imposed requiring compliance with this Article 12C
to serve the potential uses of the property covered by the parcel map or tentative subdivision map, as specified in the provisions of this Article.
(2) Subdivision Regulations. The Director of Public Works shall adopt regulations consistent with, and in furtherance of this Article 12C
.
(3) Final Maps. The Director of Public Works shall not endorse and file a final map for property within the boundaries of the City without first determining that:
(A) The subdivider has complied with the conditions imposed on the tentative subdivision map or parcel map, pursuant to this Article 12C; and
(B) For any such conditions not fully satisfied prior to the recordation of the final map, the subdivider has signed a certificate of agreement and/or improvement agreement, to ensure compliance with such conditions.
(4) This subsection (j) shall not apply to tentative subdivision maps or parcel maps submitted solely for the purposes of condominium conversion, as defined in Subdivision Code Section 1308(d).
(g)1
In the event that a privately owned Alternate Water Supply System approved by the General Manager is subsequently determined by the California Public Utilities Commission to be subject to that agency’s jurisdiction and regulation, the San Francisco Public Utilities Commission may, with the consent of the affected owner, acquire and operate the facilities.
CODIFICATION NOTE
1. So in Ord. 155-21.