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1ao <br />J <br />m <br />_~ <br />C 100 <br />O <br />.~ <br />C <br />~ 80 <br />c <br />0 <br />U <br />N <br />~ 60 <br />O <br />N <br />O <br />a ao <br />H <br />zo <br />0 <br />Lake Owasso <br />Historical Summer-Average Total Phosphorus Concentrations <br />(Late-May through .Early-September) <br />Level lV & V- Intended for runoll & <br />sediment management <br />120 <br />~~\y~ <br />O ~ _f <br />_ , . _ `/~ <br />1970 <br />Le vet 111 I I~.~~.'I~ I r .q:, l'~-'i:: <br />i_. d l_ _ 3t _,t <br />Leve/11 -Appropriate for a <br />uses except full body coma <br />O Site 5403 <br />Lovell - F Ily suppons all water <br />I sod retreat o al act vibes, <br />auding sw mming <br />GLWMO Lake <br />Classification <br />System <br />1975 1980 1985 1990 1995 2000 2005 <br />Lake Owasso <br />Historical Summer-Average Chlorophyll-a Concentrations <br />(Late-May through Early-September) <br />so <br />Le vcl 111 '{._~t I I .s:lsl~ <br />. .. .. t1=(... _.i_i. <br />ao <br />J <br />m <br />1 <br />O <br />~ 30 <br />c <br />m <br />U <br />C <br />O <br />U <br />m <br />s 20 <br />T <br />t <br />O <br />O <br />t <br />~ 10 <br />vet ll -Appropriate for all recreational <br />es except full body contact <br />Lovell - gully suppons all wa~ei <br />I =d recreatonal activities. <br />\ _tlinp svu <br />t __ <br />Level/V&V- Intended for runoff& <br />sediment management '. <br />Levellll -Supports lishing, aesthetic <br />view g & wildlife observat on <br />1 <br />Love ll Appropr~ :e for all recreational <br />g uses a cept lull bodv contact <br />'-' v ,-~ <br />T ~~. ~ <br />V / O iIP ~4()J <br />C <br />~ 2 <br />6 i~ <br />\ , <br />N ~' <br />G <br />r __ <br />V i\ <br />rn 3 <br />f] <br />- '~~. <br />L <br />U _ _ __ <br />y '. Level l - Fully suppons all water '... <br />N based recreational activities <br />,,. -, ;; ~cluding sw mm ng <br />4 _ <br />GLWMO Lake <br />Classification <br />System <br />5 <br />1970 1975 1980 1985 1990 1995 2000 2005 <br />1970 1975 1980 1985 1990 1995 2000 2005 <br />- Lake Owasso <br />Historical Summer-Average Secchi Disc Transparencies <br />(Late-May through Early-September)... °---~- s <br />=.~® <br />o ~= <br />0 <br /> , <br /> ~ <br />ta¢s~z66z <br />P ~Mpls~23 Mh1.62~2362946rWOrkFilesW QOa~a~LakeOwasso_200~WOxls Fgure_HisloricelW 012) t.27 PM <br />