i uthwest Flc 'ida
Water Manragementt District
5060 U.S. HIGHWAY 41, SOUTH BROOKSVILLE, FLORIDA 33512
PHONE (904) 796-7211
DERRILL McATEER, Chairman, Brooksville
ROBERT MARTINEZ, Vice Chairman, Tampa
THOMAS VAN DER VEER, Secretary, Yankeetown
S. C. BEXLEY, Treasurer, Land O'Lakes
N. BROOKS JOHNS, Lakeland
RONALD B. LAMBERT, Wauchula
NICK TENDER, Tampa
GEORGE RUPPEL, Clearwater
HELEN THOMPSON, St. Petersburg
LATIMER TURNER. Sarasota
Donald R. Feaster, Executive Director
September 27, 1977
Mr. Mike Zellars
Zellars Williams, Inc.
4222 S. Florida Avenue
Lakeland, Florida 33603
Re: Consumptive Use Permit Application No. 27703739
Swift Agricultural Chemicals, Manatee Mine
As per your request at our September 13, 1977, meeting in Bradenton,
enclosed is a copy of Beker Phosphate Corporation's water balance and
consumptive use calculations for Beker's proposed Manatee County Mine.
Also enclosed is a list of average annual withdrawals and tonnages for
those phosphate companies which have requested consumptive use permits
for new water use.
If further information is needed, please contact me.
Very truly yours,
Barbara A.. Boatwright
cc: Joseph Davis, Swift Agricultural Chemicals
W.R. Grace--Hookers (Polk)
Brewster--Ft. Lonesome (Hills.)
Borden--Big Four (Hills.)
C.F. Mining (Hardee)
Mississippi Chem. Corp. (Hardee)
Bartow Mineral Corp. (Polk)
Asmac Minerals (Polk)
Benefield Mine (Hills)
T.A. Minerals (Polk)
W.R. Grace--Four Corners (Hills.
NEW USES GRANTED
15.7 mgd V
NEW USES PENDING
Life of Mine
Life of Mine
NEW USES COORDINATION UNDERWAY
U.S.S. Agrichemicals (Polk-Hardee)
1 Awaiting adoption of rules and regulations
ATTACHMENT "B" 71 AUG 26 AIO : 30'
BEKER PHOSPHATE CORPORATIONATI.; -.; ; ?J1'
Consumptive Use and Water Balance
Beker Phosphate Corporation is applying for a Consumptive Use Permit to
obtain water for the separation by flotation of phosphate concentrate from
its ore. This water will be used in the amine flotation stage of the bene-
ficiation process. After being used in this stage of the process the water
will enter the water recirculation system for recycling and reuse. No dis-
charge of water is anticipated during the dry months of the year. Surplus
waters that build up during the rainy months will be stored, whenever pos-
sible, and then reused in the agricultural areas in replacement of deep well
S -" -
Beker applied for and received a waste water discharge permit from the D.E.R.
That permit was approved with a maximum possible discharge limit. It is an-
ticipated that operational practice will allow these surplus waters to be
diverted to the irrigation areas, but until actual field conditions are em-
ployed it is impossible to accurately forecast the extent of this reuse.
The maximum amount of water that will be withdrawn for processing use in a
year is 2,920 million gallons and the maximum withdrawn during any single day
will be 10.46 million gallons. For agricultural use the maximum withdrawal
in a year will be 195.5 million gallons with the maximum during any single
day being 2.88 million gallons.
The water balance indicates an actual water requirement, exclusive of matrix water,
of 5,555 gals./min., which is equal to 8 million gallons/day. The numbers are
shown in gallons per minute and they exclude irrigation water. They are average
numbers based on 365 days/yr., 24 hrs./day and 60 min./hr.
Sand-clay mixing will concentrate the waste clays to an anticipated 30% solids con-
tent. Water released from the clays during the sand-clay mixing process is consid-
ered 50% non-recoverable, as it reaches the ground surface and is lost through run-
off or other means. Since sand-clay mixing will be involved in essentially 21 of
the 23 operating years (1st two years use above ground settling pond) the consump-
tive water use from the reconstituted land can be calculated as follows:
Clay entrained water at 18% solids 4934 gpm
Clay entrained water at 30% solids 2528 gpq<
Water released 2406 gpm
50% consumptive 1203 gpm
50% non-consumptive 1203 gp
The system consumptive use balance for 21 of the 23 operating years is shown in
Water use during the two initial operating years when the above ground settling area
is employed is shown in Table II.
CONSUMPTIVE USE TABLE I (YEARS 3 THROUGH 23)
Open water additional evaporation
Shallow aquifer recharge
Clay absorbed water
Reconstituted land (sand-clay) water*
Tailings and secondary clays
Less matrix water water returns to
Well water use
*25Z of 1,000 gal./acre/day water crop
CONSUMPTIVE USE TABLE II (YEARS 1 AND 2)
Product moisture 4L 9?' -' 243
Open water additional evaporation 618
Shallow aquifer recharge (min.)~OfQ
Clay absorbed water (settling pond) 2,528
Reconstituted land (sand-clay water)
Tailings and secondary clays
Surplus (to fill system, add. seepage, -2,215 '-/
irrigation or discharge)
Less matrix water. Water will return
to dredge pond (supply zone).
Well water use
xx 50% of 1,000 gal./acre/day water crop
Notes: 1. 100% of the land will be reclaimed with the clays and sands being re-
charged to the below ground mined out areas (starting in about 3rd year
when mined out areas become available.
2. Consumptive use is "any use which reduces the supply from which it is
withdrawn or diverted.
The water is proposed to be withdrawn from the Avon Park aquifer from wells drilled
1,200 to 1,250 feet deep and cased approximately 500 feet deep into the Suwannee form-
ation. The 3,115.6 million gallons of water will be withdrawn from the 10,971 acres
of land owned by Beker Phosphate Corporation in northeastern Manatee County. This
proposed withdrawal amounts to 283,985 gallons per year per acre.
Beker Phosphate Corporation in its mining operations will follow a program of care-
ful water management and maximum water conservation. Numerous programs are projected
to achieve these golas. These include the maximum reuse of process water, use of
surplus water for agricultural irrigation, reclamation of the mined-out land with re-
sulting greater than present recharge capacity, and contouring reclaimed lands to
slow the rainfall runoff.
The overall process water balance shown in Table III, is in terms of gallons per min-
ute (average) quantities. Because of weather and mining variations, the instant-
aneous values may vary somewhat from these figures.
WATER BALANCE AFTER PLANT STARTUP1*
PROCESS STEP DISPOSITION
Mine and --10 104 -Clays (primary)
washer -Tailings & secondary clays
Flotation_ -Product void
161,800 -Open water add. evaporation
-hallow aquifer recharge
Process surplus to seepage,
surficial sands, evapor-
ation, irrigation or dis-
Mining and Beneficiation Plant only. Excludes citrus use of well water
Based on 365 days/yr., 24 hr./day, 60 min./hr.
(a) water reused "in plant" 67,530 gpm
(b) water recycled through waste disposal reclamation areas 94,270 gpm
(c) total reuse of water 161,800 gpm
The 5,555 gpm of well water is only a small portion of the total water entering the
beneficiation plant. The majority of the water for the operation comes from recycling,
the mining pits and the clay settling ponds. More than twenty-five gallons of water
are recycled for every gallon of well water used.
As a result of metallurgical studies and careful flow sheet analysis, it has been
possible to reduce the use of well water to 5,555 gpm. All of this will be used in
the second stage (amine) flotation which is very sensitive to micron size particles
in the water. Beker's projected use of well water per ton of phosphate concentrate
is as low or lower than any other producer in the field.
Currently existing on the Beker property there are 840 acres of row crops, 600 acres
of orange grove plus improved pasture. The existing use average annualized irrigation
rate is 9.2 MGD (6,389 gpm). The withdrawal of water for this purpose will be greatly
reduced when Beker commences mining. However, any surplus water from the mining op-
eration will be used to irrigate crops, when practical. Because of the water hold-
ing capacity of Beker's dredge mine, water can be stored and efficiently used as
The clay percentage of the phosphate matrix in this deposit is much lower than that
inherent-in current producing mines and by using the latest techniques in sand-clay
mixing for land reclamation, a well mixed soil with interspersed clays, is expected.
This will not only result in quicker land reclamation, but will reconstitute the
land to a composition similar to native conditions. Previously, water that was tied
up with clays stored in above ground settling areas was categorized as consumptive
since it did not return to the supply source and was not considered recoverable. The
proposed Beker process of land reconstitution will replace the water below ground
in the surficial aquifer in a placement similar to that which existed prior to mining.
Water that is released during this land reconstituting process will enter the recy-
cling-storagK. system and will be available for process reuse and irrigation. From tests
that have been run in existing phosphate mines the percent water in the clay fraction
when using these land reconstruction techniques is approximately 70 percent after one
year instead of 80 to 85 percent as experienced with current methods. It should be
emphasized for clarity that the 70 percent is in the clay fraction and the Beker re-
constituted land could be in the order of 80 percent sand and 20 percent clay.