Description
of Site: This site is closer to the dam than RS1 and represents
the transition zone (the zone between the lacustrine
and riverine zone) of the Salt River Arm of Roosevelt Lake.
GPS
Coordinates: 330 40.17
N 1110 03.28
W
6/19/00
Physico-chemical
Parameters
| Time | Depth (m) | Temp (C) | pH | SpCond | Salinity (ppt) | DO (%sat) | D.O. (mg/l) | Turbidity (NTU's) |
| 751:55 | -0.1 | 27.3 | 8.72 | 2598 | 1.2 | 88.4 | 6.94 | 32.9 |
| 748:46 | -5.0 | 26.27 | 8.45 | 2620 | 0.9 | 59.6 | 4.77 | 186 |
| 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) |
| -0.1 | 0.06 | 0.16 | 2.0 | ND | 0.29 | 93.3 | 637 |
| -5.0 | 0.08 | 0.14 | 1.0 | ND | 0.30 | 91.4 | 615 |
| 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) |
| -0.1 | 0.13 | 0.032 | 0.79 | 0.059 | 17.6 | 19 | 6.44 | 4.132 |
| -5.0 | 0.14 | 0.027 | 0.74 | 0.047 | 17.1 | 11 | ND | ND |
Secchi Depth: 0.3 meters
Periphyton
-0.1 m
| Division | Genus | Units/ml |
| Chlorophyta | Coccomonas | 1440 |
| Chlorophyta | Thoracomonas | 400 |
| Euglenophyta | Trachelomonas | 1920 |
| Euglenophyta | Phacus | 480 |
| Cyanophyta | Anabaenopsis | 880 |
| Cyanophyta | Aphanizomenon | 1120 |
| Chlorophyta | Chlamydomonas | 400 |
| Cyanophyta | Merismopedia | 560 |