Affadavit concerning Green Swamp - September 25th, 1973

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Affadavit concerning Green Swamp - September 25th, 1973

Material Information

Affadavit concerning Green Swamp - September 25th, 1973
Parker, Garald G. (Garald Gordon)
Publication Date:
Physical Location:
Box 1


Subjects / Keywords:
Aquifers -- Hydrogeology -- Everglades (Fla.) ( lcsh )
Hydrology -- Florida -- Biscayne Aquifer (Fla.) ( lcsh )

Record Information

Source Institution:
University of South Florida
Holding Location:
University of South Florida
Rights Management:
The University of South Florida Libraries believes that the Item is in the Public Domain under the laws of the United States, but a determination was not made as to its copyright status under the copyright laws of other countries. The Item may not be in the Public Domain under the laws of other countries.
Resource Identifier:
032968560 ( ALEPH )
891343127 ( OCLC )
G16-00663 ( USFLDC DOI )
g16.663 ( USFLDC Handle )

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. STM& .OF FLORIDA CXlmtff.OF _HE'RNANDO ) ) BEPOE ME, the undersigned authority, personally appeared GARALD G. PARKER, who being first du1y sworn,-deposes. and -says: I:. am a Certified Professional Geologist, A.r.P.G. Ho.,. and presently am both Chief Hydrologist and Senior Scientist of the Southwest Florida Water Management District. X hold a Bachelor of Arts Degree in Science from Central. Washington College (19.JS} and a Master's of Science in Geology from the. University of Washington (1947) • r have served nearly 30 years as a professional_ ge.ologist and hydrologist with the u. ~-Geological Survey and was, from 1940 to 1948, in-charge of the Survey's cooper~tive investigations in the southern Florida District. I am the principal author of the definitive report on geology and water resources of southeaste-=n Florida, u. s. Geological Survey Water-Supply Paper 1255, comprising 965 pages, 24 plates, 223 figures and 147 tables. Additionally, I have-written numerous other published reports on Florida geology and hydrology, one of which won for me the Gold Medal Achievement Award of the Florida Academy of Sciences in 1945. l h-ave served the u. S. Geological. Survey as resear=h geologist and hydrologist and as administrative geologist, and advanced from Junior Geologist to Principal Geologist in the period 1940-59, and was awarded in 1958 an Outstanding Achievement Award for my work on the Delaware River Basin Project, which was published as 0. S. Geological Professional Paper 381. My last tour of duty with the U. S. Geological Survey was as District Hydrologist for the New York State District, a position I resign~d to accept my present job. I am a member of a number of professional societies including


. I the American Institute of Professional.. Geologists, the American, Petroleum Geologists, American Water Resources. Association,. Geologica1. Society of America and others.. r was.-nationa.l president of American Water Resources Association. in 1968 and -currently am a.:. member of AWRA's Executive Board~ r. was. selected for membership in the Nationa.l Research Council-Nationa.l Aca?emy of Sciences in. 1963. wil.l explain here the probable effects of dredging, draining, and urbani_zation of Green Swamp. What I shall say is opinion of reasonable scientific ce'rtainty based on my expertise, training, observations, experiences and reading. I have been through the Green Swamp and surrounding geological area on geological reconnaisance trips andr thus, have an acq~tance with the area; by studying geologic reports, I have gained -It ad.di tional pertinent information. _. ~,.; q ~. Peninsular Florida draws more than )10 percent of. its '7?-~; water suppl~es from the Floridan Aquifer. The highest el~vatic( of the Floridan Aquifer underlies Green Swamp. From its high position Green Swamp is one of the major sow:ces of new water and hydraulic pressure for the aquifer, thus playing an important role in recharging and maintaining the water supply for a large part of Florida. Recent hydrologic studies of water available in the Southwest Florida Water Management District show that the district, for once-only uses of water, will be using all of the natural annual fresh water replenishment by 1985. Draining of Green Swamp will substantially decrease the amount of water available from the Florida Aquifer, move up the date of the end of water source sufficiency, and most probably cause water shortages in the near future. Further, allowing urbanization of municipal-type developments in the Green Swamp, would carry with it the seeds of destruction to the water supply even if over-drainage were -2-• • t ' I I • _....,~.,.1 -t' " ..... ...-., ... . .............. . , • .......... iu,.:_,: .,, . . . . -..a...:.. .. _.,_. ~ . . -...... _. ... ,.~---~ •l:


•: , . ....... not . the cause. -"~e __ problem is _how to dispose -of the human, l/. . . industriu,. commercial:and agricu1tural. wastes, that would .,~~i~:~w.ate fr~'~-=~~~:~t ~~:~ . Gre~ swamp l.ancls.. Lacking--~. . ' ~ . ... ' :t .. {.-"'::;.//<_;;. ~ ~ ~c.: . -. . _ -.. . . .. streams to'-carry aw~y and dil.ute the_ wastes,.. the poorl.y drained . _ -.. :-,.-.: Graen Swamp , cou1d well. become a: huge-sump o~ human and industrial. wastes. that woul.d ruin the heart of the-rechai:ge source for the. major water supply of Central.. Florida-. ~hare is-no place to dispose of ei.ther liquid or solid wastes except onto or into the_. ground, and thus no way to keep wastes out of the water suppl.y. Nature can handle wastes from the sparsepopulation now occupying the Green Swamp area, but could not possibly handle safe1y the tons of daily waste that would be gen~rated from urbanization~-not unless such liquid wastes were all. to be treated to the qual.ity of drinking water and the solid wastes be-so processed and isolated from both surface waters and ground waters that poisonous and injurious leachates could be forever kept out ,,~ the aquifers .a.Ad -~~eams. An additional effect of draining Green Swamp is creation of fire hazard conditions. During the eons prior to drainage, the wetlands ecosystems developed and were essen1:ially immune to forest, brush or grass fires. Such immunity resulted from. constantly wet solid, overflowed lands (swamps, bogs., streams, lakes, marshes, etc.) and the lush plant growth which, together with atmospheric moisture produced by evapotranspiration, created a situation in which fires simply could not develop or spread. Once these wetlands are drained and when drought conditions develop, the soils dry outr vegetation wilts or.becomes so desiccated that much of it dies, and the once fire-immune swamp suddenly becomes a huge tinderbox. It was just such a condition as this that permitted the devastation by fires of more than 22,000 acres of the Big Cypress Swamp this past spring and summer. -3-


L ' I . r Five major rivers originate here. At the U.S. Geologica1 S-urvey stream gaging stati-~s ,located cl.os~st to th,,-. . outer boundaries. of the Green Swamp proper, the streams and -their average-annual flows are: Withlacoochee River at Croom, -541 mgd (million gallons a day) which is. a runoff equivalent of 8.09 in/yr (inches a year); Hillsborough River near Zephyrhills, 188 mgd 2 17.44 in/yr; Peace River at Bartow, 190 mgd = 13.7i in/yr; Oklawaha River at Moss Bluff, 240 mgd ' • 5.52 in/yr; and Kissimmee River near Lake Wales, 747 mgd = 9.70 in/yr. Thus, total annual runoff is about 1,706 mgd or more than 3. 5 times the runoff (potential water supply that might be derived from streamflow) of the Big Cypress. These streams are less sources of water supply than they are sources of flood-control problems. No deep valleys are present anywhere in the area in which large and economical water supply reservoirs can be constructed and into which the annua1 flood flows could be stored. The dredging and draining ---------o-f <:heeu Swamp will most prob~esult in larger and more destructive seasonal floods in each of the five rivers. ( Green Swamp is the habitat of many of the forms of flora and fauna adapted to its particular environment. Drainage of. the swamp would destroy the natural habitat of these life foi:ms and hasten their demise. . Sworn to and subsc~ed befor me this ;JS_ ~day of ......,~~r:::::=:-, 1973. TARY ~UBLIC, State of Florida at Large My Commi~sion Expires: ....... $t~ of flortdl ii lJI-• ... ion upires hb. 2. 13,e FURTHER AFFIANT SAYETH NOT • -4-


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