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Show TABLE 24 EFFECT OF VARIOUS SIZED OPENINGS IN THE CAUSEWAY ON LAKE ELEVATIONS AND DENSITY £ J N5 SOUTH ARM NORTH ARM Initial ( October 1, 1974) Peak Period ( June 1, 1975) End of Water Year ( October 1, 1975) Initial ( October 1, 1974) Peak Period ( June 1, 1975) End of Water Year ( October 1, 1975) ELEVATION ( Feet Above Sea Level) No modification in causeway 4199.25 # 1 4199.60 # 2 4201.15 # 3 4201.65 # 1 # 2 4197.06 4199.05 # 3 4199.70 4197.75 # 1 4198.15 # 2 4199.45 # 3 4199.95 # 1 4196.16 # 2 4197.90 # 3 4198.50 Elevation with 100- foot opening 4199.25 4199.50 4201.05 4201.60 4197.01 4199.00 4199.65 4197.75 4198.35 4199.65 4200.10 4196.30 4198.05 4198.70 Change from current causeway conditions -. 10 -. 10 -. 10 -. 05 -. 05 -. 05 +. 20 +. 20 +. 20 +. 15 +. 15 +. 15 +. 20 Elevation with 200- foot opening 4199.25 4199.40 4200.95 4201.50 4197.0 4198.95 4199.60 4197.75 4198.50 4199.80 4200.30 4196.40 4198.20 4198.85 Change from current causeway conditions -. 20 -. 20 -. 15 -. 06 -. 10 -. 10 +. 35 +. 35 +. 35 +. 25 +. 30 +. 35 Elevation with 300- foot opening 4199.25 4199.4 4200.90 4201.45 4197.0 4198,95 4199.60 4197.75 4198.6 4199.95 4200.40 4196.45 4198.25 4198.90 Change from current causeway conditions -. 20 -. 25 -. 20 -. 06 -. 10 -. 10 +. 45 +. 50 +. 45 +. 30 +. 35 +. 40 Elevation with 500- foot opening 4199.25 4199.35 4200.85 4201.40 4196.95 4198.90 4199.60 4197.75 4198.70 4200.05 4200.50 4196.55 4198.40 4199.05 Change from current causeway conditions -. 25 -. 3 -. 25 -. 10 -. 15 -. 10 +. 55 +. 60 +. 55 +. 40 +. 50 +. 55 SALINITY ( Grams Per Liter Dissolved Solids) No modification in causeway 140 145 125 115 183 150 145 345 340 330 325 348 345 345 Density with 100- foot opening 140 155 135 127 195 165 155 345 330 320 315 350 340 335 Change from current causeway conditions + 10 + 10 + 12 - 12 + 15 + 10 - 10 - 10 - 10 - 2 - 5 - 10 Salinity with 200- foot opening 140 162 140 135 208 180 170 345 321 310 305 346 330 325 Change from current causeway conditions + 17 + 15 + 20 + 23 + 30 + 25 - 19 - 20 - 20 - 4 - 15 - 20 Salinity with 300- foot opening 140 170 150 140 221 190 180 345 314 305 300 338 320 320 Change from current causeway conditions + 25 + 25 + 25 + 38 + 40 + 35 - 26 - 25 - 25 - 10 - 25 - 25 Salinity with 500- foot opening 140 184 160 155 241 215 205 345 300 290 285 327 310 305 Change from current causeway conditions + 39 + 35 + 40 + 58 + 65 + 60 - 40 - 40 - 40 - 21 - 35 - 40 # 1 Surface water inflow equivalent of .60- 1.78 million acre feet. # 2 Surface water inflow equivalent of 1.0 ( 1972 water average)- 2.97 million acre feet. # 3 Surface water inflow equivalent of 1.15- 3.41 million acre feet. |