1. By: Susie Everly Dale Brown Riley Jones Investigating Sediment Accumulation over Time and Evaporative Water Loss of Carlson Pond: With Proposed Solutions

2. Overview Objectives Materials and Methods Results Discussion Implications Questions

3. Objective To collect core samples to determine amount of sediment accumulation and composition (water and organic content) Determine the amount of evaporative loss experienced on Carlson’s Pond

4. Materials For acquiring core samples KB-core sampler GPS Depth finder Boat with all the necessary supplies For finding evaporation loss GPS Willingness to get muddy

5. Methods For Core Samples Three different sites Took three subsamples at each site At each site took depth and GPS point Evaporative Loss Took GPS points around the perimeter This was done at high water and waters edge

6. Results

10. Depth interval2D Area 3D Area Volume m^2 m^3 =+sed depth1240.0001272.376865.606 0.0001240.0001271.618825.033 -0.500784.917806.830311.817 250.183256.57470.413 -1.50038.18038.5871.997 Full Pool2319.9522451.0015566.839 Water Loss1079.9521179.3834741.806 Sediment Volume0.0000.75840.573

11. Discussion High water loss Due to evaporation or leakage Further examination to pin point source of water loss

12. Implications Add Trace-A-Leak dye To find source of water loss If leakage is Identified Solution is to add Bentonite Clay

13. Application of Bentonite Clay Three Methods Blanket method Mixed Blanket method Sprinkle method If Done 1-1.5 pounds per ft 2 Carlson's pond would take 26,382-39,573 pounds minimum (Lesikar, 2003)

14. Bentonite Clay Effects Long Term Project Seals off fish eggs Potentially kills zooplankton Initially increases water turbidity

15. Trees Evergreens that are adapted to dry areas Ponderosa Pines Leyland Cypresses Cedars

16. References Lesikar, B. J. (2003). Sealing Ponds and Lakes with Bentonite. Available electronically from http://hdl. handle. net/1969, 1, 87264.

17. Questions???????