Title: Draft - Water Supply Needs and Sources Assessment - Appendix H - Proposed Salt Water Intrusion Evaluation Factors Revised October 22, 1993
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Title: Draft - Water Supply Needs and Sources Assessment - Appendix H - Proposed Salt Water Intrusion Evaluation Factors Revised October 22, 1993
Physical Description: Book
Language: English
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Spatial Coverage: North America -- United States of America -- Florida
 Notes
Abstract: Jake Varn Collection - Draft - Water Supply Needs and Sources Assessment - Appendix H - Proposed Salt Water Intrusion Evaluation Factors Revised October 22, 1993 (JDV Box 90)
General Note: Box 24, Folder 2 ( Emerging Issues and Conflicts - 1976-1994 ), Item 11
Funding: Digitized by the Legal Technology Institute in the Levin College of Law at the University of Florida.
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Bibliographic ID: WL00004584
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.

Full Text















APPENDIX H


PROPOSED SALT WATER INTRUSION EVALUATION FACTORS
REVISED OCTOBER 22, 1993








October 26, 1993


Case 1.


PROPOSED EVALUATION FACTORS FOR SALT WATER INTRUSION
IN THE UPPER FLORIDAN AQUIFER

Where the Upper Floridan aquifer contains water with
concentrations of chloride (Cl-) or sulfate (SO4-) or total
dissolved solids (TDS) less than 250 mg/l, 250 mg/l, and 500
mg/l respectively throughout, and the concentrations of
these constituents are projected to rise above these limits
in response to projected increases in ground water
withdrawals, the change in water quality will be considered
unacceptable.


Note:


Case 2.


This is intended to maintain ground water of
drinking water quality in the Upper Floridan
aquifer. Projections of ground water quality
changes will be made using ground water quality
models and trend analysis of ground water quality
data.


Where the Upper Floridan aquifer contains water with
concentrations of Cl- or SO04 or TDS less than 250 mg/l, 250
mg/l, and 500 mg/l respectively and greater than these
concentrations at depths within the Upper Floridan, and
concentrations of these constituents are projected to
increase to these limits in portions of the aquifer
currently supplying water with concentrations of these
constituents less than these limits to public supply and
individual domestic wells, the change in water quality will
be considered unacceptable. However, if the thickness of
water with concentrations less than these limits is so thin
that water of drinking water quality cannot be reasonably
developed from it, then the change in water quality will be
considered acceptable.


This is intended to maintain water of drinking
water quality in the Upper Floridan aquifer to
supply water to public supply and individual
domestic wells in areas where the Upper Floridan
aquifer already contains some water which does not
meet drinking water standards. This criteria
recognizes that, in some areas, the Upper Floridan
contains relatively thin layers of fresh water
which are not dependable sources of water to wells
designed to produce water which meets drinking
water standards. Projections of ground water
quality changes will be made using ground water
quality models and trend analysis of ground water
quality data.


Note:








Case 3.


Note:


This is intended to maintain water in the Upper
Floridan aquifer of suitable quality for
agricultural irrigation. Projections of ground
water quality changes will be made using ground
water quality models and trend analysis of ground
water quality data.


Where the Upper Floridan aquifer contains water with
concentrations of C1- or SO04 or TDS greater than 250 mg/l,
250 mg/1 and 500 mg/1 respectively and less than 1000 mg/l,
1000 mg/1 and 5000 mg/1 respectively, underlain within the
Upper Floridan aquifer by water with concentrations greater
than 1000 mg/l, 1000 mg/1 and 5000 mg/1 respectively; and
concentrations of these constituents are projected to
increase above 1000 mg/1 (C1-) or 1000 mg/1 (SO4-) or 5000
mg/1 (TDS) in portions of the aquifer currently supplying
water with concentrations less than 1000 mg/1 (C1-) or 1000
mg/1 (SO4-) or 5000 mg/1 (TDS) for agricultural irrigation,
the change in water quality will be considered unacceptable.
However, if the thickness of water with concentrations
greater than 250 mg/1 (C1-), 250 mg/1 (S04-), or 500 mg/1
(TDS) and less than 1000 mg/l (C1-) or 1000 mg/1 (S04-) or
5000 mg/1 TDS is so thin that water for agricultural
irrigation purposes cannot be reasonably developed from it
without causing the supply wells to produce water with
concentrations of these constituents greater than 1000 mg/1
(C1-) or 1000 mg/1 (SO4-) or 5000 mg/1 (TDS), the change in
water quality will be considered acceptable.


Note:


This is intended to maintain water in the Upper
Floridan with a quality suitable for agricultural
irrigation in areas where the Upper Floridan
aquifer already contains some water which is not
acceptable for agricultural irrigation. This
criteria recognizes that, in some areas, the Upper
Floridan aquifer may contain relatively thin
layers of water suitable for agricultural
irrigation which may not be dependable sources of
water to wells designed to produce water for this
purpose. Projections of ground water quality
changes will be made using ground water quality
models and trend analysis of ground water quality
data.


Where the Upper Floridan aquifer contains water with
concentrations of Cl- or SO- or TDS greater than 250 mg/l,
250 mg/l, and 500 mg/1 respectively throughout, and less
than 1000 mg/l, 1000 mg/I and 5000 mg/1 respectively
throughout, and the concentrations of these constituents are
projected to rise to concentrations above 1000 mg/1 (Cl-) or
1000 mg/l (SO4-) or 5000 (TDS) anywhere within the Upper
Floridan aquifer in response to projected increases in
ground water withdrawals, the change in water quality will
be considered unacceptable.


Case 4.








Case 5.


Where the Upper Floridan aquifer contains water with
concentrations of C1- or S04 or TDS greater than 1000 mg/l,
1000 mg/l, and 5000 mg/1 respectively but less than 2500
mg/l, 2500 mg/l, or 10,000 mg/1 respectively throughout, and
the concentrations of these constituents are projected to
rise above 2500 mg/1 (C1-), 2500 mg/l (SO4-), and 10,000 mg/l
(TDS) in response to projected increases in ground water
withdrawals; the change in water quality will be considered
unacceptable.


Note:


This is intended to provide for development of
ground water supplies for reverse osmosis from the
Upper Floridan aquifer in areas where the quality
of water is currently not suitable as drinking
water or agricultural irrigation supply.
Projections of ground water quality changes will
be made using ground water quality models and
trend analysis of ground water quality data.






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