Document ID: EPA-HQ-OPP-2005-0495-0015
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2005-12-21T05:00Z

­
F­
1­
Appendix
F.
TerrPlant
1.0
Modeling
and
Results
­
F­
2­

Terrestrial
Plant
EECs
and
Acute
Non
Endangered
RQs
(
8/
8/
01;
version
1.0))
Chemical:
Imazapyr
high
app
rate
non­
cropped
use
Input
Values
Application
Rate
(
lb
a.
e./
acre)
1.5
Estimated
Environmental
Concentrations
(
EECs)
for
NON­
GRANULAR
formulation
applications
(
lbs
a.
e./
acre)
Risk
Quotients
(
RQs)
for
NON­
GRANULAR
formulation
applications
Runoff
Value
(
0.01,
0.02,
or
0.05
if
chemical
solubility
<
10,

10­
100,
or
>
100
ppm,

respectively)
0.05
Application
Method
Total
Loading
to
Adjacent
Areas
(
EEC
=

Sheet
Runoff
+
Drift)
Total
Loading
to
Semiaquatic
Areas
(
EEC
=
Channelized
Runoff
+

Drift)
DRIFT
EEC
(
for
ground:

application
rate
x
0.01)

(
for
aerial:
application
rate
x
0.05)
Emergence
RQs,

Adjacent
Areas
RQ
=

EEC/
Seedling
Emergence
EC25
Emergence
RQs,

Semiaquatic
Areas
RQ
=
EEC/
Seedling
Emergence
EC25
Drift
RQs
RQ
=
Drift
EEC/
Vegetative
Vigor
EC25
Emergence
Minimum
Incorporation
Depth
(
inches)
0
Monocot
Dicot
Monocot
Dicot
Monocot
Dicot
Ground
Unincorp.
0.0900
0.7650
0.0150
19.57
37.50
166.30
318.75
1.25
16.67
Seed
Emerg
Monocot
EC25
(
lb
a.
e./
acre)
0.0046
Seed
Emerg
Dicot
EC25
(
lb
a.
e./
acre)
0.0024
Aerial,

Airblast,
Spray
Chemigation
0.1200
0.5250
0.0750
26.09
50.00
114.13
218.75
6.25
83.33
Veg
Vigor
Monocot
EC25
(
lb
a.
e./
acre)
0.012
Veg
Vigor
Dicot
EC25
(
lb
a.
e./
acre)
0.0009
­
F­
3­

Terrestrial
Plant
EECs
and
Acute
Endangered
RQs
(
8/
8/
01;

version
1.0)
Chemical:
Imazapyr
high
app
rate
non­
cropped
use
Input
Values
Application
Rate
(
lb
a.
e./
acre)
1.5
Estimated
Environmental
Concentrations
(
EECs)
for
NONGRANULAR
formulation
applications
(
lbs
a.
e./
acre)
Risk
Quotients
(
RQs)
for
NON­
GRANULAR
formulation
applications
Runoff
Value
(
0.01,
0.02,
or
0.05
if
chemical
solubility
<
10,
10­

100,
or
>
100
ppm,

respectively)
0.05
Application
Method
Total
Loading
to
Adjacent
Areas
(
EEC
=

Sheet
Runoff
+

Drift)
Total
Loading
to
Semiaquatic
Areas
(
EEC
=

(
Channelized
Runoff
+

Drift)
DRIFT
EEC
(
for
ground:

application
rate
x
0.01)
(
for
aerial:
application
rate
x
0.05)
Emergence
RQs,

Adjacent
Areas
RQ
=

EEC/
Seedling
Emergence
EC05
or
NOAEC
Emergence
RQs,

Semiaquatic
areas
RQ
=
EEC/
Seedling
Emergence
EC05
or
NOAEC
Drift
RQs
RQ
=
EEC/
Vegetative
Vigor
EC05
or
NOAEC
Minimum
Incorporation
Depth
(
inches)
0
Monocot
Dicot
Monocot
Dicot
Monocot
Dicot
Ground
Unincorp.
0.0900
0.7650
0.0150
90.91
529.41
772.73
4500.00
3.85
234.38
Seed
Emerg
Monocot
EC05
or
NOAEC
(
lb
a.
i./
acre)
0.00099
Seed
Emerg
Dicot
EC05
or
NOAEC
(
lb
a.
e./
acre)
0.00017
Aerial,

Airblast,
Spray
Chemigation
0.1200
0.5250
0.0750
121.21
705.88
530.30
3088.24
19.23
1171.88
Veg
Vigor
Monocot
EC05
or
NOAEC
(
lbs
a.
e./
acre)
0.0039
­
F­
4­

Terrestrial
Plant
EECs
and
Acute
Non
Endangered
RQs
(
8/
8/
01;

version
1.0))
Chemical:
Imazapyr
low
app
rate
non­
cropped
use
Input
Values
Application
Rate
(
lb
a.
e./
acre)
0.9
Estimated
Environmental
Concentrations
(
EECs)
for
NON­
GRANULAR
formulation
applications
(
lbs
a.
e./
acre)
Risk
Quotients
(
RQs)
for
NON­
GRANULAR
formulation
applications
Runoff
Value
(
0.01,
0.02,
or
0.05
if
chemical
solubility
<
10,

10­
100,
or
>
100
ppm,
respectively)
0.05
Application
Method
Total
Loading
to
Adjacent
Areas
(
EEC
=
Sheet
Runoff
+
Drift)
Total
Loading
to
Semiaquatic
Areas
(
EEC
=
Channelized
Runoff
+

Drift)
DRIFT
EEC
(
for
ground:

application
rate
x
0.01)

(
for
aerial:
application
rate
x
0.05)
Emergence
RQs,

Adjacent
Areas
RQ
=

EEC/
Seedling
Emergence
EC25
Emergence
RQs,

Semiaquatic
Areas
RQ
=
EEC/
Seedling
Emergence
EC25
Drift
RQs
RQ
=
Drift
EEC/
Vegetative
Vigor
EC25
Emergence
Minimum
Incorporation
Depth
(
inches)
0
Monocot
Dicot
Monocot
Dicot
Monocot
Dicot
Ground
Unincorp.
0.0540
0.4590
0.0090
11.74
22.50
99.78
191.25
0.75
10.00
Seed
Emerg
Monocot
EC25
(
lb
a.
e./
acre)
0.0046
Seed
Emerg
Dicot
EC25
(
lb
a.
e./
acre)
0.0024
Aerial,
Airblast,
Spray
Chemigation
0.0720
0.3150
0.0450
15.65
30.00
68.48
131.25
3.75
50.00
Veg
Vigor
Monocot
EC25
(
lb
a.
e./
acre)
0.012
Veg
Vigor
Dicot
EC25
(
lb
a.
e./
acre)
0.0009
­
F­
5­

Terrestrial
Plant
EECs
and
Acute
Endangered
RQs
(
8/
8/
01;

version
1.0)
Chemical:
Imazapyr
low
app
rate
non­
cropped
use
Input
Values
Application
Rate
(
lb
a.
e./
acre)
0.9
Estimated
Environmental
Concentrations
(
EECs)
for
NONGRANULAR
formulation
applications
(
lbs
a.
e./
acre)
Risk
Quotients
(
RQs)
for
NON­
GRANULAR
formulation
applications
Runoff
Value
(
0.01,
0.02,
or
0.05
if
chemical
solubility
<
10,
10­

100,
or
>
100
ppm,

respectively)
0.05
Application
Method
Total
Loading
to
Adjacent
Areas
(
EEC
=

Sheet
Runoff
+

Drift)
Total
Loading
to
Semiaquatic
Areas
(
EEC
=

(
Channelized
Runoff
+

Drift)
DRIFT
EEC
(
for
ground:

application
rate
x
0.01)
(
for
aerial:
application
rate
x
0.05)
Emergence
RQs,

Adjacent
Areas
RQ
=

EEC/
Seedling
Emergence
EC05
or
NOAEC
Emergence
RQs,

Semiaquatic
areas
RQ
=
EEC/
Seedling
Emergence
EC05
or
NOAEC
Drift
RQs
RQ
=
EEC/
Vegetative
Vigor
EC05
or
NOAEC
Minimum
Incorporation
Depth
(
inches)
0
Monocot
Dicot
Monocot
Dicot
Monocot
Dicot
Ground
Unincorp.
0.0540
0.459
0.0090
54.55
317.65
463.64
2700.00
2.31
140.63
Seed
Emerg
Monocot
EC05
or
NOAEC
(
lb
a.
i./
acre)
0.00099
Seed
Emerg
Dicot
EC05
or
NOAEC
(
lb
a.
e./
acre)
0.00017
Aerial,
Airblast,
Spray
Chemigation
0.0720
0.3150
0.0450
72.73
423.53
318.18
1852.94
11.54
703.13
Veg
Vigor
Monocot
EC05
or
NOAEC
(
lbs
a.
e./
acre)
0.0039
Veg
Vigor
Dicot
EC05
or
NOAEC
(
lb
a.
e./
acre)
0.000064
­
F­
6­
­
F­
7­

Terrestrial
Plant
EECs
and
Acute
Non
Endangered
RQs
(
8/
8/
01;
version
1.0))
Chemical:
Imazapyr
Clearfield
Corn
Input
Values
Application
Rate
(
lb
a.
e./
acre)
0.014
Estimated
Environmental
Concentrations
(
EECs)
for
NON­
GRANULAR
formulation
applications
(
lbs
a.
e./
acre)
Risk
Quotients
(
RQs)
for
NON­
GRANULAR
formulation
applications
Runoff
Value
(
0.01,
0.02,
or
0.05
if
chemical
solubility
<
10,

10­
100,
or
>
100
ppm,
respectively)
0.05
Application
Method
Total
Loading
to
Adjacent
Areas
(
EEC
=

Sheet
Runoff
+
Drift)
Total
Loading
to
Semi­
aquatic
Areas
(
EEC
=
Channelized
Runoff
+

Drift)
DRIFT
EEC
(
for
ground:

application
rate
x
0.01)

(
for
aerial:
application
rate
x
0.05)
Emergence
RQs,

Adjacent
Areas
RQ
=

EEC/
Seedling
Emergence
EC25
Emergence
RQs,

Semiaquatic
Areas
RQ
=
EEC/
Seedling
Emergence
EC25
Drift
RQs
RQ
=
Drift
EEC/
Vegetative
Vigor
EC25
Emergence
Minimum
Incorporation
Depth
(
inches)
0
Monocot
Dicot
Monocot
Dicot
Monocot
Dicot
Ground
Unincorp.
0.0008
0.0071
0.0001
0.18
0.35
1.55
2.98
0.01
0.16
Seed
Emerg
Monocot
EC25
(
lb
a.
e./
acre)
0.0046
Seed
Emerg
Dicot
EC25
(
lb
a.
e./
acre)
0.0024
Aerial,
Airblast,
Spray
Chemigation
0.0011
0.0049
0.0007
0.24
0.47
1.07
2.04
0.06
0.78
Veg
Vigor
Monocot
EC25
(
lb
a.
e./
acre)
0.012
Veg
Vigor
Dicot
EC25
(
lb
a.
e./
acre)
0.0009
­
F­
8­

Terrestrial
Plant
EECs
and
Acute
Endangered
RQs
(
8/
8/
01;
version
1.0)
Chemical:
Imazapyr
Clearfield
Corn
Input
Values
Application
Rate
(
lb
a.
e./
acre)
0.014
Estimated
Environmental
Concentrations
(
EECs)
for
NONGRANULAR
formulation
applications
(
lbs
a.
e./
acre)
Risk
Quotients
(
RQs)
for
NON­
GRANULAR
formulation
applications
Runoff
Value
(
0.01,
0.02,
or
0.05
if
chemical
solubility
<
10,
10­

100,
or
>
100
ppm,

respectively)
0.05
Application
Method
Total
Loading
to
Adjacent
Areas
(
EEC
=

Sheet
Runoff
+

Drift)
Total
Loading
to
Semiaquatic
Areas
(
EEC
=

(
Channelized
Runoff
+

Drift)
DRIFT
EEC
(
for
ground:

application
rate
x
0.01)
(
for
aerial:
application
rate
x
0.05)
Emergence
RQs,

Adjacent
Areas
RQ
=

EEC/
Seedling
Emergence
EC05
or
NOAEC
Emergence
RQs,

Semiaquatic
areas
RQ
=
EEC/
Seedling
Emergence
EC05
or
NOAEC
Drift
RQs
RQ
=
EEC/
Vegetative
Vigor
EC05
or
NOAEC
Minimum
Incorporation
Depth
(
inches)
0
Monocot
Dicot
Monocot
Dicot
Monocot
Dicot
Ground
Unincorp.
0.0008
0.0071
0.0001
0.85
4.94
7.21
42.00
0.04
2.19
Seed
Emerg
Monocot
EC05
or
NOAEC
(
lb
a.
i./
acre)
0.00099
Seed
Emerg
Dicot
EC05
or
NOAEC
(
lb
a.
e./
acre)
0.00017
Aerial,

Airblast,
Spray
Chemigation
0.0011
0.0049
0.0007
1.13
6.59
4.95
28.82
0.18
10.94
Veg
Vigor
Monocot
EC05
or
NOAEC
(
lbs
a.
e./
acre)
0.0039
Veg
Vigor
Dicot
EC05
or
NOAEC
(
lb
a.
e./
acre)
0.000064
­
F­
9­
­
F­
10­
­
F­
11­
­
F­
12­
­
F­
13­
­
F­
14­