Post on 19-Jan-2016
How does water quality within MBNMS compare to applicable water quality standards
and relevant indicator parameters?
Concentrations of Dieldrin in mussels over time (CCLEAN)
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)
Cumulative Frequency Distributions – comparing reference to receiving water (SWAMP)
Cum
ulati
ve D
istr
ibuti
on F
uncti
on
What are the concentrations and loads of constituents of concern
in discharges to the MBNMS?
From First Flush, 2010
Sites indicated in red exceed Basin Plan objectives
Concentrations of zinc in stormwater discharges to the MBNMS
First Flush copper concentrations at each discharge by year
Loads of dieldrin in rivers (green) and wastewater (red) discharges to the MBNMS (From CCLEAN, 2010)
Loads of PBDE in rivers (green and blue) and wastewater (red) discharges to the MBNMS (CCLEAN 2010)
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
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
What are the specific sources of constituents from the discharges that may be contributing to the identified receiving water problems?
Are biological communities affected by water quality conditions within MBNMS?
Comparing biological community health in reference and non-reference areas
Inde
x of
Bio
tic I
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
How are water quality conditions within MBNMS changing over
time?
PCB concentrations in Monterey Bay (from CCLEAN)
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
How are water quality conditions in discharges to MBNMS changing over time?
Nitrate concentrations have been increasing at the Old Salinas River (CCAMP)