Roosevelt/Tonto 2 (RT2)

Description of Site: This site is closer to Roosevelt dam than RT1 and represents the transition zone (the zone between the lacustrine and riverine zone) of the Tonto Creek Arm of Roosevelt Lake.
GPS Coordinates: 330 44.35 N   1110 11.83 W

11/8/99

Physico-chemical Parameters
Time Depth (m) Temp (C) pH SpCond Salinity (ppt) D.O. (%sat) D.O. (mg/l) Turbidity (NTU's)
1145:51 0 20.47 8.12 1443 0.8 91.6 8.24 6.6
1145:18 -1.4 19.57 8.11 1441 0.8 89.8 8.22 11.7
1145:00 -3.1 19.45 8.06 1442 0.8 85.8 7.87 11.8
1144:40 -4.7 19.39 8.05 1442 0.8 85.4 7.85 13.4
1143:59 -6.3 19.20 8.03 1441 0.8 88.0 8.11 51.1
1143:35 -7.9 19.10 7.99 1440 0.8 87.7 8.10 59.5

 
Depth (m) Ammonia (mg/l) Nitrate (mg/l) TKN (mg/l) Ortho P (mg/l) Total P (mg/l) Sulfate (mg/l) Chloride (mg/l))
0 0.61 0.14 1 ND 0.08 55.3 350
-7.9 0.32 0.12 <1 ND 0 55.3 350

 
Depth (m) Dissolved Fe (mg/l) Dissolved Mn (mg/l) Total Fe (mg/l) Total Mn (mg/l) Silica (mg/l) TSS  Chl a (mg/m3) Pheophytin a (mg/m3)
0 0.036 0.012 0.15 0.027 16.2 0 1.79 1.17
-7.9 0.038 0 0.22 0.018 16.2 4.5 ---------------- ----------------

Secchi Depth: 1.06 meters

Phytoplankton
0 meters
Division Genus Units/ml
Chlorophyta Ankistrodesmus 240
Chlorophyta Chlorococcum 480
Chlorophtya Crucigenia 160
Chlorophyta Monomastix 240
Chlorophtya Polytoma 80
Chlorophyta Vacuolaria 160
Chrysophyta Cyclotella 240
Euglenophyta Euglena 80
Euglenophyta Phacus 240
Euglenophyta Trachelomonas 160

 Results from 9/27/99