Turnbow Pond

Sediment & Physical Parameters Levi Dawes

Richard Yang Paul Schiller

Paul Burke

OutlineQuick backgroundWhat we did (Methods and Results)

Conclusions and Suggestions

BackgroundNorth of Potlatch and owned by Larry & Lael Turnbow

Dug out 3 years ago, added depth and size

High turbidityGround water inflowBass and rainbow trout present

Pond Sample Locations

Basic MaterialsMaterial List Numbers NeededKB core sampler 1KB core tube 9KB core plug 18Messenger 2Van dorm sampler 1Sampling bottle 18Secchi disk 1Turbidity tube/ turbidity probe

1

MethodsRiparian Vegetation

Turbidity

Secchi Depth

KB Core

KB Core Results1.500 2.000 2.500 3.000 3.5000

1

2

3

4

5

6

A1A2B2C1

Organic Matter (%)

Dep

th (

cm

)

KB Core Results1.0000 1.5000 2.0000 2.5000 3.0000

0

1

2

3

4

5

6

A1A2B2C1

Bulk Density (g/mL)

Dep

th (

cm

)

KB Core Results20.00030.00040.00050.00060.00070.000

0

1

2

3

4

5

6

A1A2B2C1

Water Content (%)

Dep

th (

cm

)

Secchi Depth

Location Duplicate Number Secchi Depth (m) Photic Zone Depth (m)A 1 0.34 0.68

2 0.36 0.723 0.31 0.62

B 1 0.33 0.662 0.33 0.663 0.32 0.64

C 1 0.31 0.622 0.32 0.643 0.31 0.62

Average 0.33 0.65

0 10 20 30 40 50 60 70 80 90 1000

0.5

1

1.5

2

2.5

ABC

Turbidity (NTU)

Dep

th (

m)

Turbidity

Riparian Vegetation

http://www.clemson.edu/extension/hgic/water/resources_stormwater/shoreline_plants_in_south_carolina_waterfronts.html

Pond BottomLow organic matter suggests large amounts of clay

Pond will not leak, however it is not good for aquatic vegetation

Adding more aquatic vegetation will eventually increase organic matter

Suggestions (long term)

Plant more riparian and bank vegetation, especially shrubs

Increased root length and size will stabilize soil and lower turbidity

Increased plant diversity will lead to increased aquatic animal diversity

Suggestions (short term)

Apply calcium sulfate (CaSO4) (gypsum)

CaSO4 binds to clay particles

May alter water chemistry

Negative charges repeleach other

Cations bind to clayand make it neutral

Suggestions (short term)

Add alfalfa to shallow areas 2 square bales/acre of surface area in spring and summer

Decomposition => positively charged molecules

Adds food for microbes and bugs

Decomposition consumes O2

SummaryTurnbow Pond has high turbidity

Our results suggest high clay input

Treat with riparian buffer zone and hay

Questions?

ReferencesClearing ponds that have turbid (muddy) water. Missouri

Department of Conservation. Online source. Accessed on 9 December 2014. Riparian Buffers. Stream Notes 1. Online source. Accessed on 9

December 2014.Schlosser, I.J., Karr, J.R. 1981. Water quality in agricultural

watersheds: impact of riparian vegetation during base flow. Water Resources Bulletin 17:233-240.Yi, Y., Lin, C.K. wei, Diana, J.S. 2003. Techniques to mitigate clay turbidity problems in fertilized earthen fish ponds. Aquacultural Engineering 27:39-51.