2007 National Lake Survey - Wisconsin Results
Results for Oconomowoc Lake, Waukesha County (WBIC: 849600)
Oconomowoc Lake
Waukesha County - DNR Photo
NOTE: Only the data collected during the 2007 National Lake Survey are included here, and many of the results will not be available until late-2008.
Currently available data include:
Water chemistry
Include summary text on TSI values and lake productivity results
| Site Name | Date |
|---|---|
| OCONOMOWOC LAKE - DEEP HOLE | 07/03/2007 |
| Secchi Depth (m) |
Hit Bottom |
Chlorophyll a (µg/L) |
Total Phosphorus (mg/L) |
TSI (Secchi) |
TSI (Chl a) |
TSI (TP) |
|---|---|---|---|---|---|---|
| 1.95 | NO | 3.36 | 0.012 | 50 | 42 | 40 |
| pH | Diss. Si (µg/L) |
Alkalinity (mg/L) |
|---|---|---|
| 8.57 | 4.2 | 189 |
Secchi = Secchi disc transparency in meters (m); Chl a = chlorophyll a in micrograms per liter (µg/L); TP = total phosphorus in µg/L; TSI(Secchi), TSI(Chl a), TSI(TP) = Wisconsin trophic state index based on Secchi, Chl a, and TP, respectively; Diss. Si = dissolved silica in µg/L; Alkalinity = alkalinity as total CaCO3 in milligrams per liter (mg/L);
Mid-lake water column profiles
| Depth (m) |
Temp. °C |
DO (mg/L) |
Conductivity (µS/cm) |
pH |
|---|---|---|---|---|
| .5 | 24.8 | 9.9 | 561 | 8.6 |
| 1 | 24.8 | 9.8 | 561 | 8.6 |
| 2 | 24.8 | 9.8 | 561 | 8.6 |
| 3 | 24.2 | 9.9 | 561 | 8.6 |
| 4 | 23.9 | 9.6 | 562 | 8.6 |
| 5 | 23.5 | 8.8 | 566 | 8.5 |
| 6 | 22.9 | 8 | 569 | 8.4 |
| 7 | 21.5 | 7.5 | 580 | 8.3 |
| 8 | 18 | 6.9 | 593 | 8.1 |
| 9 | 13.8 | 7.2 | 599 | 8 |
| 10 | 11.3 | 7.7 | 592 | 8 |
| 11 | 9.1 | 7.6 | 594 | 8 |
| 12 | 8.4 | 7.4 | 588 | 7.9 |
| 13 | 7.9 | 6.7 | 591 | 7.9 |
| 14 | 7.7 | 5.6 | 590 | 7.8 |
| 15 | 7.4 | 4.5 | 590 | 7.8 |
| 16 | 7.2 | 4.5 | 590 | 7.7 |
| 17 | 7 | 1.4 | 594 | 7.6 |
| 18 | 6.8 | 0.4 | 598 | 7.5 |
| 18.5 | 6.8 | 0.3 | 627 | 7.7 |
Last Revised:
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