Description of Site: The closest to the tailwaters of Stewart Mtn. Dam, this site is the most representative of water conditions immediately leaving the Salt River reservoir system.
7/17/00
Flow:
875 cfs
Physico-chemical Parameters
Time | Turbidity (NTU's) | Temp (C) | DO (ppm) | DO (% sat.) | pH | TDS | Ammonia (mg/l) | Nitrate (mg/l) | Ortho-P (mg/l) | Sulfate (mg/l) | Dissolved Fe (mg/l) | Dissolved Mn (mg/l) | Chloride (mg/l) |
0745 | 0.5 | 22.3 | 4.40 | 50.3 | 7.7 | 850 | 0.09 | <0.008 | ND | 59.0 | ND | 0.061 | 358 |
TSS (mg/l) | Silica (mg/l) | TKN(mg/l) | Total P (mg/l) | Total Fe (mg/l) | Total Mn (mg/l) | CDOM (mg/m3) | MIB (ng/l) | Geosmin (ng/l) | Chl a (mg/m3) | Pheophytin a (mg/m3) |
ND | 16.6 | 4.6 | 0.05 | 0.038 | 0.091 | 0.256 | 15 | 3 | 0.756 | 0.6 |
Phytoplankton
Division | Genus | Units/mL |
Chlorophyta | Crucigenia | 160 |
Chlorophyta | Scenedesmus | 80 |
Chrysophyta | Cocconeis | 160 |
Periphyton
Division | Genus | Units/cm2 |
Cyanophyta | Lyngbya | 10,406 |
Chlorophyta | Cladophora | 184,610 |
Chlorophyta | Cloniophora | 7642 |
Chlorophyta | Aegagropila | 1058 |
Chlorophyta | Ulothrix | 72,518 |
Chrysophyta | Amphipleura | 11,410 |
Chrysophyta | Cocconeis | 42,118 |
Chrysophyta | Cymbella | 287,611 |
Chrysophyta | Fragilaria | 42,655 |
Chrysophyta | Gomphonema | 17,412 |
Chrysophyta | Pleurosigma | 13,097 |
Chrysophyta | Pinnularia | 27,752 |
Chrysophyta | StaUROI | |
Aquatic Macro-invertebrates (presence/absence)
Order | Family | Genus |
Diptera | Simuliidae | Simulium |
Plecoptera | Acroneuriinae | Acroneura |
Trichoptera | Helicopsychidae | Helicopsyche |
Trichoptera | Hydropsychidae | Hydropsyche |