Wastewater Treatment Workgroup - Chesapeake Bay Program...Wastewater Treatment Workgroup Gopal Bhatt...
Transcript of Wastewater Treatment Workgroup - Chesapeake Bay Program...Wastewater Treatment Workgroup Gopal Bhatt...
Mead Westvaco Industrial FacilityWastewater Treatment Workgroup
Gopal Bhatt
Penn State University
06/07/2016
1. Reported phosphorus loads
2. Weight of evidence approach
3. USGS-WRTDS tool
4. Phase 6 Beta 2 as a proof of concept
5. Review and approve
Presentation outline
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Water quality monitoring sites
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P L
oad
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/mo
nth
)
P C
on
cen
trat
ion
(m
g/l
)
P Concentration (mg/l) P Load (lb/month)
1. Input data for Mead Westvaco Industrial Facility
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2. Weight of evidence
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Mead Westvaco Industrial Facility
Q-C Plot
Phase 6 Beta 1
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… suggests major loading is from a point source.
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3. USGS-WRTDS (Hirsch et al., 2010; Hirsch and Di Cicco, 2014) is a statistical model especially designed to estimate long-term trends in loads and concentrations.
WRTDS Input – Daily Flow
WRTDS Input – Concentration Samples
Jackson River below Dunlop Creek, Covington, VA
1985 to 1996
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WRTDS estimates (a) daily concentration, (b) daily load
PHASE 6BETA 1
PHOSPHORUSJACKSON RIVER BL DUNLAP CREEK AT COVINGTON, VA
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PHASE 6BETA 2
PHOSPHORUSJACKSON RIVER BL DUNLAP CREEK AT COVINGTON, VA
UPDATE
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1. Revise assumptions for the 1984 – 1996 period
2. The process for estimating load
5. Review and approve …
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Flo
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mgd
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RIVER Q PLANT Q
River flow is approximately 13 times that of point source discharge.
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TOTP
(M
G/L
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FLOW (CFS)
1985-1995 1996-2004 2005-2014