south river mercury tmdl – june 2005 jack eggleston monitoring stations stream flow water sampling...
TRANSCRIPT
South River Mercury TMDL – June 2005
Jack Eggleston
• Monitoring Stations • Stream Flow • Water Sampling• Next Steps Plans
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
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
Waynesboro Dooms Harriston
Installation of Monitoring Stations
Complete CompleteIn Progress
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
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)
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
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
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
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