2011 Estimated Water Use - Southwest Florida Water Management ...

2011 ESTIMATED WATER USE REPORT
In the NTB WUCA, 76% (116.1 mgd, Table B‐4) of
the 152.6 mgd of groundwater permitted (Table
C‐4) for public supply were used. Of the 187.2
mgd of surface water permitted for public supply
in the NTB WUCA (Table C‐4), only 49% (90.8
mgd) of it was used (Table B‐4).
In the Dover/Plant City WUCA, 72% (38 mgd,
Table B‐5) of the groundwater quantities
permitted for public supply (53 mgd, Table C‐5)
and 20% (.001 mgd, Table B‐5) of the surface
water quantities permitted for public supply (.005
mgd, Table C‐5)use were actually used.
UNIFORM PER CAPITA RATE
Appendix D gives the uniform per capita rate for
the utilities within the District. In response to
concerns that Florida’s five water management
districts were using different methods to calculate
public supply water use and per capita rates, the
FDEP developed a uniform statewide convention
for the calculation of public supply per capita
water use in 2009. The document, entitled
“Guidance on Per Capita Water Use: Uniform
Definition and Performance Measures,” March 3,
2009, was developed by staff members from each
water management district and staff from the
FDEP. The District, using the methods prescribed
in the guidance document, began reporting this
information to the FDEP in 2007, beginning with
the 2006 calendar year. This uniform per capita
data is only used for comparison purposes by the
FDEP and are not used as data sources for
planning or calculating demand projections.
The uniform per capita rate is calculated as
follows:
(Withdrawals + Imports ­ Exports ­
Treatment Losses) / Residential
Population Served, where “Residential
Population Served” is equal to Housing
Units Served by the Utility times the
Average Persons Per Household within the
Utility
Appendix D also provides a ten‐year history of
pumpage for the larger WUPs. A graph of the
2002 through 2011 public supply pumpage
shows, via the linear trend line, that public supply
water use has remained flat.
Appendix E shows the per capita values used in
the 2011 FDEP Uniform Per Capita Report.
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