Dutch Lake (DNR ID: 27-0181-14)
Sampling Location - GPS Coordinates: Surface Area: 159.5 acres Max. Depth: 45 ft
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Dutch Lake is located in the city of Mound. Public lake access is available on the southeast corner of the lake from Grand View Blvd., which is west of Hwy 110 (Commerce Blvd.). The access is located two blocks down Grand View Blvd. just past a school playground on the right.
Dutch Lake is a dimictic class 2B lake protected for aquatic life and recreation. Water quality information is available beginning in 1997. MCWD staff have been monitoring the lake on a bi-weekly basis from the time of ice out (April) to the time of fall mixing (mid-October) since 2006.
Currently not available.
Monitoring season started in early May and ended in late October. A YSI multi-probe sonde was used to measure dissolved oxygen (DO), temperature (oC), pH, and specific conductivity (µS/cm) at each meter depth from the water surface to the bottom. Water samples were collected at one meter below the water surface and one meter from the bottom. Surface sample parameters analyzed included total phosphorus (TP), total nitrogen (TN), and soluble reactive phosphorus (SRP). Surface concentrations of chlorophyll-a were also analyzed and measurements of Secchi disc depth were recorded. Bottom samples were analyzed for TP and SRP.
| 2008 Summer Water Quality Summary |
| Parameters | Range | Mean | TSI Value | Lake Grade |
| Months | June - Sept. | May - Sept. | ||
| Secchi Depth (m) | 0.5 - 3.4 | 1.2 | 57 | C |
| Surface TP (µg/L) | 44 - 74 | 57.0 | 62 | C |
| Chlorophyll-a (µg/L) | 9 - 87 | 41.4 | 67 | C |
| Overall Score | 62 | C |
The following summary refers to Figure 9.3 (a-d).
- Secchi disk depth increased from 1.1 m to 5.4 m in the beginning of the season. Then water clarity decreased with secchi disk depth remaining between 0.5 m and 1.7 m for the rest of the season.
- Chlorophyll-a concentrations decreased from 53 µg/L to below detection limits (< 0.02 µg/L) by the end of May. The rest of the season, concentrations were only below the standard limit (< 15 µg/L) twice. Chlorophyll-a concentrations were the highest in June at five times over the standard limit.
- Surface TP concentrations decreased from 65 µg/L to 22 µg/L by the end of May. Concentrations for the remainder of the season gradually increased with the highest TP concentration occurring in October (105 µg/L), almost 3 times over the standard (< 40 µg/L). Surface SRP concentrations ranged from 0 µg/L to 8 µg/L for the entire season.
- Both bottom TP and SRP concentrations steadily increased throughout the entire season, until middle of October when concentrations declined.
Lake Grades and Historical Monitoring Summaries
When available, previous reports are linked to applicable year. Additional lake data previous to 2007 may be available in the applicable year's hydrodata report. If you have additional questions or you are looking for specific information please contact MCWD's Water Quality Staff.
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