South River Mercury TMDL – June 2005 Jack Eggleston Monitoring Stations Stream Flow Water Sampling...
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South River Mercury TMDL – June 2005
Jack Eggleston
• Monitoring Stations • Stream Flow • Water Sampling• Next Steps Plans
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South River Mercury TMDL: Study Goals
• Characterize cycling of total mercury and methyl mercury
• Develop mathematical models for simulating surface water
flows and methyl mercury production and transport
• Determine loading reductions needed to achieve fish
tissue Hg levels of less than 0.5 ppm
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South River Watershed and WQ Monitoring Points
Waynesboro
Dooms
Crimora
Grottoes
SOUTH RIVER AT HARRISTON, VA
SOUTH RIVER NrWAYNESBORO,VA
Continuous WQ Station
STREAMFLOW GAGE
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Waynesboro Dooms Harriston
Installation of Monitoring Stations
Complete CompleteIn Progress
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Data on the Web
01626000 SOUTH RIVER NEAR WAYNESBORO, VA
http://waterdata.usgs.gov/nwis/uv?site_no=01626000
01626920 SOUTH RIVER, OLD RT 611 AT DOOMS, Va.
http://waterdata.usgs.gov/nwis/uv?site_no=01626920
01627500 SOUTH RIVER AT HARRISTON, VA
http://waterdata.usgs.gov/nwis/uv?site_no=01627500
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Continuous Monitoring Results - Dooms
0
2
4
6
8
10
5/24 5/25 5/26 5/27 5/28 5/29 5/30 5/31 6/1 6/2
pH
0
1
2
3
4
5
6
7
8
9
10
Tu
rbid
ity
(FN
U)
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Analysis of Surface Water
• First sampling May 2 (results not back yet)
• Regular sampling on a monthly schedule
• Stormwater sampling when possible
• Hg and MeHg, both filtered and unfiltered will continue to be analyzed for now
• Sulfate, DOC, Chloride, Sediment conc. are also analyzed
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South River Flows - Waynesboro and Harriston, May 2005
90
140
190
240
290
340
28-Apr-05 5-May-05 12-May-05 19-May-05 26-May-05 2-Jun-05Date
Str
eam
flo
w (
cfs)
Wboro
Harriston
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South River Flows - Waynesboro and Harriston, May 2005
90
140
190
240
290
340
18-May-05 19-May-05 20-May-05 21-May-05 22-May-05 23-May-05Date
Str
eam
flo
w (
cfs)
Wboro - USGS 01626000
Harriston - 01627500
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Upcoming Work
• Finish equipment installation at Waynesboro station
• Expand monthly sampling to all stations
• QA/QC on analytical procedures/results
• Finalize data processing steps for continuous QW data
• Start storm sampling