Vegetable Garden

Vegetable Garden

Augusta Forestry Center South River Science Team Meeting June 24, 2003

Vegetable Garden Study Objective - Determine if soil-Hg is takenup by vegetables at concentrations sufficient to be a health risk

South River Science Team Meeting June 24, 2003

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Augusta Forestry Center – Crimora, VA

South River Science Team Meeting June 24, 2003

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Sampling circle of about 1-m diameter centered over the grid location

South River Science Team Meeting June 24, 2003

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Coring device used to collect samples

South River Science Team Meeting June 24, 2003

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Locations of Areas Sampled April 14-15 & May 26-27, 2003

Avg. + C.I.95% = 0.027 + 0.003 Range = 0.020 to 0.032 n=8

Area 2 Area 1

Rt. 395 C

South River

Avg. + C.I.95% = 0.48 + 0.08 Range = 0.19 to 0.95 n = 20

Virginia Division of Forestry Augusta Forestry Center Cimora, VA South River Science Team Meeting June 24, 2003

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Locations of Floodplain Areas 1 and 2 38.1742

Meridians of Latitude

38.174

Sampled 26-May-03 Sampled 15-Apr-03

38.1738

River flow

38.1736

Area 1

38.1734

38.1732

38.173

Area 2 38.1728

38.1726 -78.861

13.2 ug Hg/g -78.8605

-78.86

-78.8595

-78.859

-78.8585

-78.858

-78.8575

-78.857

Parallels of Longitude

South River Science Team Meeting June 24, 2003

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Floodplain Area 1 38.1741

19.7

Floodplain Garden Location

Total Soil Hg, ug/g 12.5

38.1740

53.5

Meridians of Latitude

10.7 38.1739

River flow 22.3

10.2

38.1738

38.1737

18.4

11.4

6.48

3.00

13.1 2.67

5.57 38.1736 11.0

1.56

38.1735

Area 1

1.68

Sampled 26-May-03 Sampled 15-Apr-03

38.1734 2.18 38.1733 -78.8594

-78.8592

-78.8590

-78.8588

-78.8586

-78.8584

-78.8582

-78.8580

-78.8578

Parallels of Longitude

South River Science Team Meeting June 24, 2003

Not to scale 8

South River Science Team Meeting June 24, 2003

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Completely Randomized Design Radish

Tomato

Tomato

Radish

Onion

Radish

Crop 10

Tomato

Potato

Onion

10

3

Cabbage

Crop 9

Crop 9

Crop 10

Cabbage

Crop 8

Radish

Squash

Cabbage

Crop 8

10

3

Crop 9

Carrot

Potato

Squash

Crop 10

Tomato

Squash

Crop 10

Cabbage

Carrot

10

3

Potato

Carrot

Crop 8

Onion

Carrot

Onion

Squash

Potato

Crop 9

Crop 8

10

5

5

5

5

5

5

5

5

5

5

ft

South River Science Team Meeting June 24, 2003

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Control Area

South River Science Team Meeting June 24, 2003

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Soil Sampling Results for Hg Control Area 

All values are estimated. 





The result falls between the Method of Detection Limit (MDL = 0.012) and Limit of Quantification (LOQ = 0.12?)

Average 0.027 ug Hg/g soil with a 95% confidence interval of 0.003, n = 8 Total Soil Hg concentrations ranged from 0.020 to 0.032 ug Hg/g soil dry weight

South River Science Team Meeting June 24, 2003

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Path Forward 

Plant garden  

Lime and fertilize according to soil test recommendations Plant in both floodplain and control areas

South River Science Team Meeting June 24, 2003

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