Description of Site: This site is approximately 8 river miles above Horseshoe Lake. It is the uppermost site sampled along the Verde River and is unaffected by any reservoir processes.
Physico-chemical Parameters 9/9/99
| 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) |
| 1104 | 26 | 23.8 | 8.08 | 93.6 | 8.31 | 340 | 0.020 | ND | ND | 61.3 | 0.084 | 0.02 | 25.0 |
| TSS (mg/l) | Silica (mg/l) | Total N (mg/l) | Total P (mg/l) | Total Fe (mg/l) | Total Mn (mg/l) | TOC | DOC | UV254 | Chl a (mg/m3) | Pheophytin a (mg/m3) |
| 70 | 22.0 | <1 | 0.285 | 1.31 | 0.12 | 1.56 | NS | 0.0588 | 1.1 | 0.864 |
Phytoplankton
| Division | Genus | Units/mL |
| Chlorophyta | Polytoma | 240 |
| Chlorophyta | Thoracomonas | 320 |
| Chlorophyta | Ulothrix | 240 |
| Chrysophyta | Cymbella | 80 |
| Chrysophyta | Diatomella | 160 |
| Chrysophyta | Diploneis | 160 |
| Chrysophyta | Fragilaria | 320 |
| Chrysophyta | Gyrosigma | 80 |
| Chrysophyta | Navicula | 80 |
| Chrysophyta | Stauroneis | 400 |
| Chrysophyta | Terpsinoe | 160 |
Periphyton
| Division | Genus | Units/cm2 |
| Chlorophyta | Cladophora | 4381 |
| Chlorophyta | Polytoma | 419 |
| Chlorophyta | Ulothrix | 1257 |
| Chrysophyta | Amphipleura | 838 |
| Chrysophyta | Navicula | 838 |
| Chrysophyta | Stauroneis | 628 |
| Chrysophyta | Terpsinoe | 209 |
| Chrysophyta | Trachelomonas | 209 |
Aquatic
Macro-Invertebrates (Presence/Absence)
| Order | Family | Genus |
| Ephemeroptera | Baetidae | Baetodes |
| Ephemeroptera | Heptageniidae | Heptagenia |
| Megaloptera | Corydalidae | Corydalus |