Title: Handwritten Notes
Full Citation
Permanent Link: http://ufdc.ufl.edu/WL00002260/00001
 Material Information
Title: Handwritten Notes
Physical Description: Book
Language: English
Spatial Coverage: North America -- United States of America -- Florida
Abstract: Handwritten Notes
General Note: Box 10, Folder 12 ( SF Water Rights-Water Crop - 1973, 1976-77 ), Item 24
Funding: Digitized by the Legal Technology Institute in the Levin College of Law at the University of Florida.
 Record Information
Bibliographic ID: WL00002260
Volume ID: VID00001
Source Institution: Levin College of Law, University of Florida
Holding Location: Levin College of Law, University of Florida
Rights Management: All rights reserved by the source institution and holding location.

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Statutory Provisions:

1. Section 373.016(2), Florida Statutes, declares it to be the
policy of the Legislature to "promote the conservation, devel-
opment, and proper utilization of surface and ground water"
but also to "prevent damage from floods, soil erosion, and
excessive drainage" as well as, among other things, to
"preserve natural resources, fish and wildlife."

2. Section 373.223(1), Florida Statutes, requires that "to obtain
a Uconsiumptie ausQ permit... the applicant must establish
That the proposed use of water:; (a) is a reasonable
beneficial use... (b) will not interfere with any presently
existing legal use of water; and (c) is consistent with the
public interest."
Subsection (3) provides that the governing board "may reserve
from use by permit applicants, water in such locations and
quantities, and for such seasons of the year, as in its
judgement may be required for the protection of fish and
wildlife of the public health and safety....N Mwever, all
presently existing legal uses of water shall be protected
so long as such use is not contrary to the public interest."

3. Section 373.219(1), Florida Statutes, provides that the
governing board "may impose such reasonable conditions as are
necessary to assure that such use is consistent with the
overall objectives of the district.. and is jot harmful to
the water resources of the area.... (and that no permit
shall be required for domestic consumption of water by
individual users."

4. Section 373.019(5), Florida Statutes, states that "'reasonable
beneficial use' means the use of water in such quantity as
is necessary for economic and efficient utilization for a
purpose and in a manner which is both reasonable and consis-
tent with the public interest."

5. Section 373.042, Florida Statutes, provides that "the water
management district as a whole, the department or the governing
board shall establish... minimum flow for all surface water
courses in the area.... Candy) ... minimum water leveltCl...
rfoi~ ... ground water ....." and that "the governing board
shall also consider, and at their discretion may provide
for, the protection of nonconsumptive uses in the establishment
of minimum flows and levels."

i I lu. I i

-2- n

Unfortunately, the "public interest" has not been defined
by the legislature or specifically addressed by the courts
in this state insofar as it relates to use of water.

The primary problem is to determine just how much water may
be consumptively used in the district, and still be consistent
with the public interest and not interfere with any presently
existing legal use of water.

It is necessary to determine the effect of removing water
through consumptive use. SWFWMD has been wrestling with this
for almost 15 years, and has made substantial progress.
The scientific staff, together with USGS, consulting firms,
and others have developed techniques which have proved to be
quite reliable in calculating predictable results from with-
drawals of varying quantities of water.

Obviously, these calculations must be based upon an accurate
determination of aquifer characteristics and an assumed amount
of precipitation over an extended period of time. These
factors vary throughout the district and are measured through
the use of pump tests.

To determine the amount of water available in the district,
the water crop concept has beed developed. It is now an ac-
cepted fact that peninsular Florida receives no water from
north Florida. There is a hydrologic divide extending across
the state just south of Gainesville and no water flows south
across that line, leaving rainfall as the only source of
fresh water.

The amount of water available on a continuing basis has been
designated as the water crop or water budget. In its simplest
terms, water crop (WC) is defined to be the amount of rainfall
(precipitation, P) minus the amount of evaporation and plant
usage evapotranspirationn, Et). A study done by the USGS
in the mid-1960's formed the basis for the numerical values
attributed to water crop. To date, no subsequent studies
have refuted these values as averages over the entire district.

The current valuation of the water available over the entire
District, as defined by the water crop method (WC = P Et),
is 1,000 gallons per day per acre, or approximately 13A
inches of water per year.

The evapotranspiration within the District has been determined
to be approximately 39 inches per year and the average annual
rainfall ranges between 50 and 55 inches. Therefore, the
water available over the entire district as defined by the
water crop method (P Et =WC) is 11 to 16 inches, say 13h
inches of water per year, or approximately 1,000 gallons
per day per acre.

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