2009 Improving / Degrading Long Term Trend Analysis on City of Orlando Lakes
(Information Based on Long Term Average of Trophic State Index Scores through 2009)
LAKE NAME
TREND
R2 VALUE
These lakes showed an Improving Trend
But are only labeled as Improving if R2 is > 0.20
SANDY
Improving
0.7266
RABAMA
Improving
0.5061
BALDWIN
Improving
0.4201
UNDERHILL
Improving
0.3751
BEAUTY
Improving
0.3219
HOLDEN
Improving
0.2884
SUSANNAH
LAWNE
LORNA DOONE
GEORGE
CLEAR
OLIVE
SARAH
IVANHOE E
IVANHOE M
EMERALD
LAWSONA
SUNSET
GREENWOOD
COMO
TURKEY
IVANHOE W
COPELAND
CHEROKEE
FAIRHOPE
DAVIS
KELLY
LURNA
ROWENA
TENNESSEE
FORMOSA
BUCK
CATHERINE
ANGEL
ESTELLE E
DOVER
HIGHLAND
LUCERNE E
WINYAH
CAY DEE S
LUCERNE W
ADAIR
SPRING NW
FREDRICA
ARNOLD
FRAN
WALKER
FARRAR
PORTER
ORLANDO
PARK
ESTELLE W
RED
PINELOCH
SANTIAGO
MUD
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
Improving
0.2325
0.2037
0.2018
0.1881
0.1777
0.1699
0.1618
0.1470
0.1450
0.1381
0.1372
0.1304
0.1283
0.1153
0.1134
0.1123
0.1084
0.1058
0.1055
0.1027
0.0985
0.0979
0.0973
0.0916
0.0822
0.0667
0.0649
0.0593
0.0571
0.0535
0.0505
0.0502
0.0487
0.0471
0.0446
0.0377
0.0327
0.0321
0.0313
0.0297
0.0256
0.0194
0.0170
0.0158
0.0118
0.0081
0.0080
0.0057
0.0055
0.0025
LAKE NAME
TREND
R2 VALUE
These lakes showed an Improving Trend
But are only labeled as Improving if R2 is > 0.20
EOLA
Improving
0.0024
WARREN
Improving
0.0012
DANIEL
Improving
0.0004
SHANNON
Improving
0.0001
SUE
No Trend
0.0000
LAKE NAME
TREND
2
R VALUE
These lakes showed a Degrading Trend
But are only labeled as Degrading if R2 is > 0.20
PAMELA
Degrading
0.0004
CONCORD
Degrading
0.0011
DRUID
Degrading
0.0015
RICHMOND
Degrading
0.0022
GEM MARY
Degrading
0.0052
SILVER
Degrading
0.0061
THERESA
Degrading
0.0076
DOT
Degrading
0.0099
WELDONA
Degrading
0.0100
LANCASTER
Degrading
0.0138
NONA
Degrading
0.0167
FAIRVIEW
Degrading
0.0182
MICHELLE
Degrading
0.0184
LAKE O WOODS
Degrading
0.0240
CAY DEE N
Degrading
0.0263
WADE
Degrading
0.0301
KASEY
Degrading
0.0370
TERRACE
Degrading
0.0426
BEARDALL
Degrading
0.0471
CANE
Degrading
0.0475
GILES
Degrading
0.0502
SPRING SW
Degrading
0.0696
KOZART
Degrading
0.0807
BARTON
Degrading
0.1006
GEAR
Degrading
0.1167
BAY
Degrading
0.1569
MANN
Degrading
0.1900
MARE PRAIRIE
Degrading
0.2061
C
Degrading
0.2252
HIAWASSEE
Degrading
0.2270
KRISTY
Degrading
0.2935
ROCK
Degrading
0.3191
2009 LONG TERM TREND SUMMARY
Quantity
Percentile
Lakes with Significant Improving Trend (R2 > 0.20)
9
9.7%
Lakes with Insignificant Improving Trend (R 2 < 0.20)
51
54.8%
Lakes with Significant Degrading Trend (R2 > 0.20)
5
5.4%
Lakes with Insignificant Degrading Trend (R 2 < 0.20)
27
29.0%
Total Lakes in Analysis (Lakes with > 5 years of data)
93 (out of 95 lakes)
Lake Hourglass and Little Lake Fairview were not included
because they have less than 5 years of data.
2009 Improving / Degrading Long Term Trend Analysis on City of Orlando Lakes
(Information Based on Long Term Average of Trophic State Index Scores through 2009)
Significant Improving
Trend
(9 of 93)
9.7%
Insignificant
Degrading Trend
(27 of 93 Lakes)
29.0%
Significant
Degrading Trend
(5 of 93 Lakes)
5.4%
Insignificant
Improving Trend
(51 of 93 Lakes)
54.8%