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

1/5/00

Physico-chemical Parameters
Time Depth (m) Temp (C) pH SpCond Salinity (ppt) D.O. (%sat) D.O. (mg/l) Turbidity (NTU's)
1007:29 -0.4 10.49 8.41 1233 0.6 87.1 9.65 6.0
1007:08 -1.0 10.47 8.39 1239 0.7 86.6 9.61 6.6
1006:50 -2.6 10.42 8.39 1238 0.7 86.1 9.56 6.6
1006:32 -4.2 10.41 8.40 1238 0.7 86.5 9.61 9.9
1006:11 -5.8 10.39 8.40 1236 0.7 88.1 9.79 19.3
1005:45 -7.5 9.89 8.41 1210 0.6 90.9 10.21 22.6

 
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 0.04 0.59 ND 0.08 64.8 417
-5.8 0 0.04 0.53 ND 0 64.5 412

 
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 0.016 0.95 0.17 16.9 0 4.59 2.87
-5.8 0.054 0.019 0.14 0.032 17.7 0 ---------------- ----------------

Secchi Depth: 1.01 meters

Phytoplankton
-0.4 meters
Division Genus Units/ml
Chlorophyta Ankistrodesmus 480
Chlorophyta Chlamydomonas 240
Chlorophtya Crucigenia 320
Chlorophyta Thoracomonas 240
Chlorophtya Polytoma 400
Chlorophyta Cosmarium 560
Chrysophyta Cyclotella 400
Chrysophta Nitzchia 640
Euglenophyta Phacus 720
Euglenophyta Trachelomonas 640

 
 Results from 11/8/99