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

6/19/00

Physico-chemical Parameters
Time Depth (m) Temp (C) pH SpCond Salinity (ppt) D.O. (%sat) D.O. (mg/l) Turbidity (NTU's)
915:31 -0.2 27.05 8.84 2112 1.1 100.8 7.96 10.3
913:50 -4.5 25.67 8.56 2129 1.1 76.5 6.2 24.6

 
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))
-0.2 0.08 0.13 1.0 ND 0.25 78 493
-4.5 0.06 0.14 2.0 ND 0.15 78.2 497

 
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)
-3.0 0.038 ND 0.26 0.026 16.5 ND 1.072 2.376
-7.1 0.042 ND 0.26 0.2 16.7 ND ND ND

Secchi Depth 0.7m

Periphyton
-0.2m
Division Genus  Units/ml
Chrysophyta Mallomonas 80
Chrysophyta Chrysococcus 240
Chrysophyta Melosira 160
Chrsyophyta Nitzchia 80
Chrsyophyta Synedra 320
Chrsyophyta Cymbella 360
Pyrrophyta Glenodidium 240
Cyanophyta Anabaenopsis 160
Chlorophyta Chlamydomonas 480
Euglenophyta Trachelomonas 560
Chlorophyta Dictyosphaerium 400

Results from 5/8/00