NITROGEN & PHOSPHORUS

REMOVAL FROM GROUNDWATER

LITTLE BOGUE, MS.CONSTRUCTED

NOVEMBER 2009

RS2 Test Site: Little Bogue, Elliott, MS

On the narrow mid-bank bench (average width 8-10 ft, approx. 8 ft above the streamside floodplain bench), a trench a bucket wide (1.0 ft) was dug to

a depth of 4 ft. This should intercept a large amount of shallow groundwater.

Research Monitoring & Research Monitoring & AnalysisAnalysis

• Hydrolab used to measure DO, ORP, temp, conductivity, turbidity & pH

• Lab measurement of ortho-P, NO3-N, TOC, alkalinity and NH3-N

0.04 0.05 0.09 0.04

99.499.4

99.2

99.5

0

2

4

6

8

10

12

NO

3-N

(m

g/L

)

98.6

98.7

98.8

98.9

99.0

99.1

99.2

99.3

99.4

99.5

99.6

% R

em

ov

ed

Feed 6.89 7.30 10.70 9.50

Effluent 0.04 0.05 0.09 0.04

% Removal 99.4 99.4 99.2 99.5

6/22/2005 9/12/2005 3/31/2006 7/14/2006

Colorado State Field LabColorado State Field Lab Nitrogen Removal Results

0

10

20

30

40

50

60

70

80

90

100

Cell A (sawdust) Cell B (control) Cell C (WTR)

Ave

rage

P R

emov

al (%

)Colorado State Field LabColorado State Field Lab

Phosphorus Removal Results

Aerial view with approximate research project trench location in yellow & control section (trench not dug) in pink.

PRE-PROJECT - RS2 PROJECT-LITTLE BOGUE FROM RED HEN VIDEO

RS2 Test Site: Little Bogue, Elliott, MS

There is a 75 ft long control section (nothing done, no trench, just monitoring instruments), and a 150 ft long test trench section. Within the downstream 75 ft of the test trench, three 25 ft-long test plots of adventitious rooting poles of Black Willow, Sycamore, & River Birch were placed, spacing varied from 1 to 2 ft.

RS2 Test Site: Little Bogue, Elliott, MS

For the test section shovels were used to backfill the trench with a mix of 20% (by volume) Aluminum Sulfate, xx% mulch, and the

remainder native soil from the trench. This effectively planted the live poles to a depth of 4 ft.

RS2 Test Site: Little Bogue, Elliott, MS

Monitoring instruments determine performance of the control and planted & not planted test sections. Instruments at different depths

will determine if some groundwater is bypassing the test trench.

RS2 Test Site: Little Bogue, Elliott, MS

According to the CSU laboratory tests, the Aluminum Sulfide and carbon (mulch)

should greatly reduce the Nitrogen & Phosphorus load to the stream.

Install instrumentation as required. Monitor for

long-term project performance.

200 ft

RS2 Test Site: Little Bogue, Elliott, MS - aerial view

Looking US @ entrance conditions into project bend. Note floodplain bench & mid-bank bench where the test will occur.

PRE-PROJECT - RS2 PROJECT-LITTLE BOGUE PIX BY DAVE DERRICK 4-2-08

Looking US @ the mid-bank bench where the test will be conducted. Control area in pink, test trench location in black.

PRE-PROJECT - RS2 PROJECT-LITTLE BOGUE PIX BY DAVE DERRICK 4-2-08

LET’S DO SOME

RESEARCH !!

Two bags of Aluminum Sulfate for each bag of Eucalyptus mulch

CONSTRUCTION-RS2 PROJECT-LITTLE BOGUE PIX BY DAVE DERRICK 11-19-08

Hand labor is used to mix Aluminum Sulfate & mulch into backfill. Next time an excavator will be used to mix and backfill, we are

learning!! No plantings in this first 75 ft.

CONSTRUCTION-RS2 PROJECT-LITTLE BOGUE PIX BY DAVE DERRICK 11-19-08

Trench was dug to a consistent depth of 4 ft for entire length

CONSTRUCTION-RS2 PROJECT-LITTLE BOGUE PIX BY DAVE DERRICK 11-19-08

John McCullah says,

“Dig a hole, plant a pole!!”

Looking US @ seeded & mulched trench, berm, & plantings.

CONSTRUCTION-RS2 PROJECT-LITTLE BOGUE PIX BY DAVE DERRICK 11-19-08

MONITORING INSTRUMENT

INSTALLATION PHOTOS BY

CHESTER WATSON JANUARY 12, 2009

Dr. Biedenharn with some of the monitoring instruments.

MONITORING INSTRUMENT INSTALL-LITTLE BOGUE PIX BY WATSON 1-12-09

Looking US @ test site. Excellent planted grass coverage.

MONITORING INSTRUMENT INSTALL-LITTLE BOGUE PIX BY WATSON 1-12-09

Looking US @ the test area. Great rye grass growth on all disturbed areas.

MONITORING INSTRUMENT INSTALL-LITTLE BOGUE PIX BY WATSON 1-12-09

7 MONTHS AFTER PROJECT

COMPLETIONPhotos by Derrick

JULY 3, 2009TAKING SOIL SAMPLES

Looking US @ test site. Excellent planted grass coverage.

7 MONTHS AFTER TRENCHING-LITTLE BOGUE PIX DERRICK 7-3-2009

Looking US @ the test site. All planted poles died except for one willow!!!

7 MONTHS AFTER TRENCHING-LITTLE BOGUE PIX DERRICK 7-3-2009

Close-up of the one willow that lived.

7 MONTHS AFTER TRENCHING-LITTLE BOGUE PIX DERRICK 7-3-2009

Looking downhill at one of the monitoring wells.

7 MONTHS AFTER TRENCHING-LITTLE BOGUE PIX DERRICK 7-3-2009

Ground water & soil sampling protocol from

Dr. Ken Carlson,

Colorado State University.

Tools used to take a soil sample 16 inches below the surface.

7 MONTHS AFTER TRENCHING-LITTLE BOGUE PIX DERRICK 7-3-2009

Very dry for the top 7 inches or so in each of the 15 soil sample holes

7 MONTHS AFTER TRENCHING-LITTLE BOGUE PIX DERRICK 7-3-2009

Man’s best friend, Cleophus Speed Elvis Derrick