SFPUC Wholesale Customer Water Demand Projections ... - BAWSCA

SECTIONFIVE
Water Demand Projections
5.3 CONCURRENCE PROCESS
Wholesale customers selected and/or concurred in writing with the following items:
• Population Projection Source Selection
• DSS Input Sheets
• Projected Water Demands (Planning Estimate)
Table 4-1 summarizes the projection source selected by each wholesale customer. Copies of the
DSS Input Sheets and graphs with final water demands for which each wholesale customer
concurred are included in the wholesale customer’s corresponding sub-appendix (C1 through
C30).
5.3.1 Workshops
SFPUC organized four workshops to help the wholesale customers understand the modeling
process, how each of their inputs would be used to generate results, and how those results will be
used for future SFPUC planning purposes. The workshops were given by the SFPUC and its
consultants for this study. The consulting team included five individuals who actually performed
the modeling (the DSS modelers). One-on-one time was available with DSS modelers during one
of the workshops and many wholesale customers used this time to work with their modeler for
customizing their model to their agency or for answering technical or process questions.
5.3.2 Correspondence and Feedback
In addition to the workshops, on two separate occasions one-on-one meetings with SFPUC, its
consultants, and BAWSCA were arranged for each wholesale customer. The wholesale
customers were additionally provided drafts of their results as model runs were improved and
completed. Each round of wholesale customer feedback was addressed by revising the model as
needed and making wholesale customer specific adjustments in cases where necessary to
appropriately and correctly calibrate the model.
Once the wholesale customers were satisfied with the input values and projection results, they
submitted their concurrence forms, concurring with the SFPUC’s 2030 projected water demand
for their service area for use as an SFPUC planning estimate.
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