How does water quality within MBNMS compare to applicable water quality standards and relevant...
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Transcript of How does water quality within MBNMS compare to applicable water quality standards and relevant...
![Page 1: How does water quality within MBNMS compare to applicable water quality standards and relevant indicator parameters?](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0151a28abf838ccde70/html5/thumbnails/1.jpg)
How does water quality within MBNMS compare to applicable water quality standards
and relevant indicator parameters?
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Concentrations of Dieldrin in mussels over time (CCLEAN)
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Prop
orti
on o
f Sam
ples
Cum ulative frequency d istributions (m ock data)
O cean P lan Standard
Storm D ischarges R ivers Rece iv ing Water Reference
10 20 30 40 50 60 70 80 90
Analyte concentration (ug /L)
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Cumulative Frequency Distributions – comparing reference to receiving water (SWAMP)
Cum
ulati
ve D
istr
ibuti
on F
uncti
on
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What are the concentrations and loads of constituents of concern
in discharges to the MBNMS?
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From First Flush, 2010
Sites indicated in red exceed Basin Plan objectives
Concentrations of zinc in stormwater discharges to the MBNMS
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First Flush copper concentrations at each discharge by year
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Loads of dieldrin in rivers (green) and wastewater (red) discharges to the MBNMS (From CCLEAN, 2010)
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Loads of PBDE in rivers (green and blue) and wastewater (red) discharges to the MBNMS (CCLEAN 2010)
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Nitrate loads entering MBNMS from creeks and rivers (CCLEAN)
Wadd
ell C
reek
Scott
Cree
k
Lagu
na C
reek
Moore
Cree
k
San
Lore
nzo
Riv
er
Branc
iforte
Cree
k
Soqu
el C
reek
Porte
r G
ulch
Aptos
Cree
k
Pajar
o R
iver
Te
mblad
ero
Sloug
h
Salina
s R
iver
Ca
rmel
Rive
r @
HW
Y 1
Big
Sur
Rive
r
1.00E+06 d. Nitrate - N
2.01E+06
8.00E+05
6.00E+05
2001-2002 2002-2003 2003-2004 2004-2005 2005-2006
4.00E+05
2.00E+05
0.00E+00
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River and wastewater loads
to MBNMS of Nitrate and Ortho-
phosphate
3,200,000
2,800,000
c. N itrate-N
Rivers and Stream s W astewater
2,400,000
2,000,000
1,600,000
1,200,000
Sampling at Tembladero Slough began in 2003-2004
800,000
400,000
0
2001-2002 2002-2003 2003-2004 2004-2005 2005-2006
Year
450 ,000
400 ,000
f. Orthophosphate
Rivers and Streams Wastewater
350 ,000
300 ,000
250 ,000
200 ,000
150 ,000
100 ,000
50,000
0
2003-2004 2004-2005 2005-2006
Year
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What are the specific sources of constituents from the discharges that may be contributing to the identified receiving water problems?
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Are biological communities affected by water quality conditions within MBNMS?
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Comparing biological community health in reference and non-reference areas
Inde
x of
Bio
tic I
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Significant statistical relationships between benthic organisms and pollution concentrations
Results of stepwise multiple regressions for the effects of total organic carbon (TOC), silt + clay (fines), concentrations of TOC-normalized DDTs, a discharge quotient for the Pajaro River and time on infaunal densities (CCLEAN, 2010)
T a x o n r 2 p M o d e l
Cossura p y g o d a c ty la ta 0 .2 5 1 7 0 .0 0 1 6 y = 33.59 – 5.71-9 Time – 1.16 DDT – P a ja ro Levinsenia g ra c ilis 0 .4 0 5 1 < 0 .0 0 0 1 y = 10.21 – 0.60 DDT – 0.42 Pajaro + 0.05 F in e s Nephtys c o rn u ta 0 .0 8 1 3 0 .0 3 3 1 y = 14.66 – 3.55-9 T im e Pholoe g la b ra 0 .2 9 8 5 < 0 .0 0 0 1 y = 25.68 – 5.4-9 Time – 0.25 P a ja ro Total P o ly c h a e te s 0 .2 8 8 9 0 .0 0 0 5 y = 19.96 – 2.48-9 Time – 0.35 DDT – 0.24 P aja ro Total C ru s ta c e a n s 0 .3 4 8 9 < 0 .0 0 0 1 y = 6.21 – 9.7-10 Time – 0.30 DDT – 0.0.01 F in e s Total number of o rg a n is m s 0 .3 5 8 9 < 0 .0 0 0 1 y = 19.01 – 2.68-9 Time – 0.28 DDT – 0.15 P aja ro Total number of ta x a 0 .4 3 0 0 < 0 .0 0 0 1 y = 6.54 – 5.9-10 Time – 0.12 DDT – 0.01 Fines + 0.04 P aja ro
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How are water quality conditions within MBNMS changing over
time?
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PCB concentrations in Monterey Bay (from CCLEAN)
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Mussel Watch trends over time
Co
nce
ntr
atio
n(u
g/g
dry
we
igh
t C
on
cen
tra
tion
(ug
/gd
ryw
eig
ht)
Trend of Ni concentration at Pacific Grove Lovers P o int
4 y = 0.0334x - 6 4 .8 34
3 R2
= 0.1451 N i
3
2
2
1
1
0
1980 1985 1990 1995 2000 2005 20 10 Yea r
Trend of Pb concentra tion at Pcific Grove lovers point
y = -0 .0 92 1x + 190.03
16 R2 = 0.0531
14 Pb
12
10
8
6
4
2
0
1980 1985 1990 1995 2000 2005 20 10
Yea r
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How are water quality conditions in discharges to MBNMS changing over time?
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Nitrate concentrations have been increasing at the Old Salinas River (CCAMP)