Post on 13-Jan-2016
description
Dissolved Oxygen Criteria Indicators
Dave Jasinski
Top Level – Mainstem and Tidal Trib Attainment
Trib Level – Potomac Attainment
Mainstem and Tidal Trib Attainment through time – by assessment period
Mainstem and Tidal Trib OW Attainment through time – by assessment period
Mainstem and Tidal Trib OW Attainment through time – by month
Potomac Attainment through time – by assessment period
Potomac DW Attainment through time – by assessment period
Potomac DW Attainment through time – by month
2003
Open Water Volume
Deep Channel Volume
Deep Water Volume
Volume of Chesapeake Bay And Tidal Tributaries meeting proposedwater quality standards under 2001-2003 and restored conditions
-Data are expressed as a percentage of the total water volume of the Mainstem Bay and Tidal Tribs. Total Bay volume in this assessment – 73 km3
or 19.3 trillion gallons
-This is the 2001-2003 June-September attainment assessment
Open Water
Deep Water
Deep Channel
2001
-03
Map
s
Segment meeting proposed standards
Segment not meeting proposed standards
20
40
60
80
100
3.9
7.7
11.6
15.4
19.3
0 0
Per
cen
t o
f to
tal v
olu
me
mee
tin
g p
rop
ose
d w
ater
qu
alit
y st
and
ard
s
Ga
llo
ns
me
eti
ng
pro
po
se
d w
ate
r q
ua
lity
sta
nd
ard
s(x
1 t
rill
ion
)
2001-2003 Restored 2010 Goal
20
40
60
80
100
3.9
7.7
11.6
15.4
19.3
0 0
Per
ce
nt
of
tota
l v
olu
me
me
eti
ng
pro
po
se
d w
ate
r q
ual
ity
sta
nd
ard
s
Gallo
ns m
eeting
pro
po
sed w
ater qu
ality stand
ards (x 1 trillio
n)
Open Water Volume
Deep Channel Volume
Deep Water Volume
- Data are expressed as a percentage of the total water volume of the Mainstem Bay and Tidal Tribs. This volume varies by assessment period. For purposes of this graph, percentages were based on a mean volume of 73.16 km3 or 19.3 trillion gallons
-Year on x axis is the end year of the 3 year assessment period (ie 1992 is the 1990-92 assessment)
-2010 is the projected condition of 100% of the volume meeting the proposed standards
Volume of Chesapeake Bay And Tidal Tributaries meeting proposedwater quality standards
Open Water
Deep Water
Deep Channel
Segment meeting proposed standards
Segment not meeting proposed standards
Segment meeting proposed standards
Segment not meeting proposed standards
Per
cen
t o
f O
W v
olu
me
mee
tin
g p
rop
ose
d w
ater
qu
alit
y st
and
ard
s
Open Water Volume
Goal- Data are expressed as a percentage of the total Open Water volume of the Mainstem Bay and Tidal Tribs. This volume is approximately 50 km3 or 13 trillion gallons and is variable.
- Year on x axis is the end year of the 3 year assessment period (ie 1992 is the 1990-92 assessment)
Open Water volume meeting proposed water quality standards
Per
cen
t o
f D
esig
nat
ed U
se V
olu
me
Mee
tin
g W
ater
Qu
alit
y S
tan
dar
d Percent of Mainstem and Tributary Open Water Designated Use Meeting the OW water quality standard (5.0 mg/l) by month
Jun
eJu
lyA
ug
ust
Sep
tem
ber
1985 1986 1987 1988 1989 1990 1991 19931992 1994 1995 1996 1997 19991998 2000 2001 2002 2003
-Data displayed in the graph is the percent of the OW DU for each month that meets the Summer OW water quality standard of 5.0 mg/l. The OW volume is variable from cruise to cruise but on average is 47 km3 or 12,425,194,391,560 gallons
-Maps show the area failing and passing for each month
20
40
60
80
100
.37
.75
1.1
1.5
1.8
0 0
Per
ce
nt
of
tota
l v
olu
me
me
eti
ng
pro
po
se
d w
ate
r q
ual
ity
sta
nd
ard
s
Gallo
ns m
eeting
pro
po
sed w
ater qu
ality stand
ards (x 1 trillio
n)
Open Water Volume
Deep Channel Volume
Deep Water Volume
- Data are expressed as a percentage of the total water volume of the Potomac River. This volume varies by assessment period. For purposes of this graph, percentages were based on a mean volume of 7.12 km3 or 1.8 trillion gallons
-Year on x axis is the end year of the 3 year assessment period (ie 1992 is the 1990-92 assessment)
-2010 is the projected condition of 100% of the volume meeting the proposed standards
Volume of Potomac River meeting proposed water quality standards
Open Water
Deep Water
Deep Channel
Segment meeting proposed standards
Segment not meeting proposed standards
2003
Open Water Volume
Deep Channel Volume
Deep Water Volume
Volume of Potomac meeting proposed water quality standards under 2001-2003 and restored conditions
-Data are expressed as a percentage of the total water volume of the Potomac River. Total River volume in this assessment – 7.1 km3 or 1.9 trillion gallons
-This is the 2001-2003 June-September attainment assessment
Open Water
Deep Water
Deep Channel2001
-03
Map
s
Segment meeting proposed standards
Segment not meeting proposed standards
20
40
60
80
100
0.4
0.7
1.1
1.5
1.9
0 0
Per
cen
t o
f to
tal v
olu
me
mee
tin
g p
rop
ose
d w
ater
qu
alit
y st
and
ard
s
Ga
llo
ns
me
eti
ng
pro
po
se
d w
ate
r q
ua
lity
sta
nd
ard
s(x
1 t
rill
ion
)
2001-2003 Restored 2010 Goal
1985 1986 1987 1988 1989 1990 1991 19931992 1994 1995 1996 1997 19991998 2000 2001 2002 2003
Jun
eJu
lyA
ug
ust
Sep
tem
ber
Per
cen
t o
f D
esig
nat
ed U
se V
olu
me
Mee
tin
g W
ater
Qu
alit
y S
tan
dar
d Percent of Potomac Deep Water Designated Use Meeting the DW water quality standard (3.0 mg/l) by month
-Data displayed in the graph is the percent of the DW DU for each month that meets the Summer DW water quality standard of 3.0 mg/l. The Potomac DW volume is variable from cruise to cruise but on average is 1.3 km3 or 340,215,366,570 gallons
-Maps show the area failing and passing for each month
20
40
60
80
100
0.63
1.27
1.88
2.51
3.14
0 0
Per
ce
nt
of
DW
vo
lum
e m
ee
tin
g p
rop
os
ed
wa
ter
qu
alit
y s
tan
da
rds
Gallo
ns m
eeting
pro
po
sed w
ater qu
ality stand
ards (x 100 b
illion
)
- Data are expressed as a percentage of the total Deep Water volume of the Potomac. The Mean volume is approximately 1.25 km3 or 330billion gallons and is variable.
-Year on x axis is the end year of the 3 year assessment period (ie 1992 is the 1990-92 assessment)
-2010 is the projected condition of 100% of the volume meeting the proposed standards
Volume of Potomac River Deep Water Designate Use meeting proposed water quality standards
Segment meeting proposed standards
Segment not meeting proposed standards
Deep Water Volume