Central California ASBS Program Compliance Considerations February 11, 2015.
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Central California ASBS Program Compliance Considerations February 11, 2015
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Transcript of Central California ASBS Program Compliance Considerations February 11, 2015.
Central CaliforniaASBS Program
Compliance ConsiderationsFebruary 11, 2015
ComplianceReceiving Water Exceedances = Load
Reductions
How well will load reductions eliminate exceedances?
Comparison of Storm Receiving Water with LoadsEstimated Runoff from Impervious Area and
RainfallEstimated Runoff x Concentration = Load
Test CasesPotentially most problematic contaminants
Trace Metals, Nutrients, Fecal Indicator Bacteria, PAHs
CAVEAT! These analyses were based on relatively few samples
Cadmium
0 200,000 400,000 600,000 800,000 1,000,000 1,200,0000
0.02
0.04
0.06
0.08
0.1
0.12
0.14
f(x) = 2.80226870060758E-08 x + 0.056072661569514R² = 0.11174331809727
Load of Cadmium, mg
Co
nce
ntr
ati
on
of
Ca
dm
ium
, m
g/L
Cadmium
0 200,000 400,000 600,000 800,000 1,000,000 1,200,0000
0.02
0.04
0.06
0.08
0.1
0.12
0.14DuxburyFitzgeraldPacific GroveCarmel Bay
Estimated Load of Arsenic, mg
Co
nce
ntr
ati
on
of
Ars
en
ic,
mg
/L
y = 3E-08x + 0.0561 R² = 0.11174
Cadmium
0 200,000 400,000 600,000 800,000 1,000,000 1,200,0000
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
f(x) = 4.71728049072155E-08 x + 0.0481775517110886R² = 0.738901622829937
Load of Cadmium from Pacific Grove, mg
Co
nce
ntr
ati
on
s o
f C
ad
miu
m,
mg
/L
Cadmium
0 100,000 200,000 300,000 400,000 500,000 600,000 700,0000
0.02
0.04
0.06
0.08
0.1
0.12
0.14
f(x) = − 7.66497671842546E-09 x + 0.0619682564812145R² = 0.00329342085119377
Load of Cadmium into All ASBS but Pacific Grove, mg
Co
nce
ntr
ati
on
of
Ca
dm
ium
, m
g/L
E. coli
0
2000
0000
0000
0
4000
0000
0000
0
6000
0000
0000
0
8000
0000
0000
00
5,000
10,000
15,000
20,000
25,000
30,000
f(x) = 3.37101958944847E-09 x + 642.264360336309R² = 0.96969509498423
Estimated Load of E. coli, MPN
Co
nce
ntr
ati
on
of
E.
co
li,
MP
N/1
00
ml
E. coli
0 2000000000000 4000000000000 6000000000000 80000000000000
5,000
10,000
15,000
20,000
25,000
30,000
DuxburyFitzgeraldPacific GroveCarmel Bay
Estimated Load of E. coli, MPN
Co
nce
ntr
ati
on
of
E.
Co
li,
MP
N/1
00
ml
y = 3E-09x + 642.26 R² = 0.9697
E. coli
0
2000
0000
0000
0
4000
0000
0000
0
6000
0000
0000
0
8000
0000
0000
00
5,000
10,000
15,000
20,000
25,000
30,000
f(x) = 3.1972041865524E-09 x + 1795.8577365154R² = 0.981680672152567
Estimated Load of E. coli from Pacific Grove, MPN
Co
nce
ntr
ati
on
of
E.
co
li,
MP
N/1
00
ml
E. coli
0 30,000,000,000 60,000,000,000 90,000,000,0000
500
1000
1500
DuxburyFitzgeraldCarmel Bay
Estimated Load of E. coli from All ASBS but Pacific Grove, MPN
Co
nce
ntr
ati
on
of
E.
Co
li,
MP
N/1
00
ml
y = 1E-06x + 76.479R² = 0.14408
Enterococcus
0
2000
0000
0000
0
4000
0000
0000
0
6000
0000
0000
0
8000
0000
0000
0
1000
0000
0000
00
1200
0000
0000
00
1400
0000
0000
00
1600
0000
0000
000
20,000
40,000
60,000
80,000
100,000
120,000
140,000
f(x) = 8.35020551725995E-09 x − 2430.1810708007R² = 0.9714351457445
Estimated Load of Enterococcus, MPN
Co
nce
ntr
ati
on
of
En
tero
co
ccu
s,
MP
N/1
00
ml
Ammonia
0 1,000,000 2,000,000 3,000,000 4,000,0000
0.05
0.1
0.15
0.2
0.25
f(x) = 5.72868626608367E-08 x + 0.00581671031696705R² = 0.794027536587639
Load of Ammonia, mg
Co
nce
ntr
ati
on
of
Am
mo
nia
, m
g/L
Ammonia
0 1,000,000 2,000,000 3,000,000 4,000,0000
0.05
0.1
0.15
0.2
0.25
Duxbury
Fitzgerald
Pacific Grove
Carmel Bay
Estimated Load of Ammonia, mg
Co
nce
ntr
ati
on
of
Am
mo
nia
, m
g/L
y = 6E-08x + 0.0058 R² = 0.79403
PAHs
0 1,000,000 2,000,000 3,000,000 4,000,0000.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
f(x) = 8.46573434508844E-08 x + 0.0185364550952879R² = 0.533513117597843
Estimated Load of PAHs, mg
Co
nce
ntr
ati
on
of
PA
Hs,
mg
/L
PAHs
0 1,000,000 2,000,000 3,000,000 4,000,0000.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45f(x) = NaN x + NaNR² = 0 Duxbury
Linear (Duxbury)FitzgeraldPacific Grove
Estimated Load of PAHs, mg
Co
nce
ntr
ati
on
of
PA
Hs,
mg
/L
y = 8E-08x + 0.0185R² = 0.53351
PAHs
0 1,000,000 2,000,000 3,000,000 4,000,0000.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
f(x) = 9.90099343699925E-08 x + 0.0179466337845475R² = 0.932447793474196
Discharge Load of PAHs from Pacific Grove, mg
Co
nce
ntr
ati
on
of
PA
Hs,
mg
/L
PAHs
0 500,000 1,000,000 1,500,000 2,000,000 2,500,0000.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
f(x) = 3.32245757422204E-08 x + 0.0275409303011567R² = 0.0507656899513067
Discharge Load of PAHs, mg
Co
nce
ntr
ati
on
of
PA
Hs,
mg
/L
Preliminary Findings
The relationships between contaminant loads and receiving water concentrations vary among ASBS Some ASBS will be more amenable to reducing ocean
contaminant concentrations via load reductions than will others
The relationship between contaminant loads and receiving water concentrations are not consistent among contaminants FIBs appear to be most amenable to reducing ocean
concentrations via load reductions Reductions of trace metal and nutrient concentrations
via load reductions appear to be especially problematic
