Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Lake drawdown as a method of improving water quality /
Author Fox, Jackson L. ; Brezonik, Partick L. ; Keirn., Michael A.
Other Authors
Author Title of a Work
Brezonik, Patrick L.
Keirn, Michael A.
CORP Author Florida Univ., Gainesville.;Corvallis Environmental Research Lab., Oreg.
Publisher U.S. Environmental Research Laboratory ; For sale by National Technical Information Service,
Year Published 1977
Report Number EPA-600/3-77-005; EPA-R-800305
Stock Number PB-263 970
OCLC Number 02883213
Subjects Lake restoration--Florida--Apopka, Lake. ; Water quality--Florida--Apopka, Lake. ; Florida--Lake Apopka. ; Lake renewal--Florida--Apopka, Lake
Additional Subjects Lake Apopka ; Draw down ; Water pollution ; Limnology ; Pumping ; Sediments ; Water quality ; Recommendations ; Dissolved gases ; Oxygen ; Nitrogen ; Phosphorus ; Aquatic weeds ; Aquatic plants ; pH ; Chemical properties ; Primary biological productivity ; Tables(Data) ; Graphs(Charts) ; Florida ; Trophic level ; Typha ; Chara ; Eutrophication
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-3-77-005 Headquarters Library/Washington,DC 06/17/2013
EJBD  EPA 600-3-77-005 c.1 Headquarters Library/Washington,DC 05/23/2014
EKAM  QH105.F6F69 Region 4 Library/Atlanta,GA 03/18/1994
ELBD RPS EPA 600-3-77-005 repository copy AWBERC Library/Cincinnati,OH 10/17/2014
ESAD  EPA 600-3-77-005 Region 10 Library/Seattle,WA 07/19/2005
ESBD  EPA-600-3-77-005 CPHEA/PESD Library/Corvallis,OR 09/05/2017
NTIS  PB-263 970 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation x, 94 pages : illustrations ; 28 cm.
Investigations were made to determine the feasibility of radical drawdown as a restoration technique for Lake Apopka, Florida, a 12,545 hectare lake in central Florida. Field studies showed the lake to be hypereutrophic with continual algal blooms, mats of floating water hyacinths, and a flocculent organic muck bottom rich in interstitial water nutrients. Sediments were dredged from the lake bottom and placed in aquaria, columns, tanks and pools. Following dewatering and varying drying periods, the containers of sediment were refilled. A large number of physical, chemical and biological parameters were monitored before, during and following sediment drying. Results indicate that drawdown improves subsequent refill water quality. Based on these laboratory scale investigations, drawdown appears to be an effective restoration technique for Lake Apopka.
Prepared by University of Florida, Gainesville, Fla., for U.S. Environmental Protection Agency, Office of Research and Development, Corvallis Environmental Research Laboratory, under grant no. R800305. Includes bibliographical references (pages 88-90).