Development
Document
for
Construction
and
Development
Proposed
Effluent
Guidelines
June
2002
APPENDIX
A:

STATE
REGULATIONS
ON
THE
CONTROL
OF
CONSTRUCTION
STORM
WATER
Table
A­
1:
State
Regulations
on
the
Control
of
Construction
Phase
Storm
Water
Geographic
Area
Name
Disturbed
Area
Limit
for
Permet
Coverage
(feet
2
)
Numeric
Standard
or
Pollutant
Reduction
Requirement
Minimum
Depth
of
Runoff
or
Storm
Return
Frequency
to
Treat
for
Water
Quality
Management
(per
acre)
Maximum
Allowed
Denuded
Acreage
or
Soil
Stablilization
Requirement
Visual
Inspection
Frequency
Notes
Clean
Water
Act
NPDES
Storm
Water
program
for
Phase
I
and
Phase
II
MS4s
43,560
After
0.5
inch
rainfall
and
every
14
days
Phase
II
compliance
date
is
March
10,
2003.

CZARA
5,000
Must
prepare
and
implement
an
approved
erosion
and
sediment
control
plan
or
similar
document
that
contains
erosion
and
sediment
control
provisions.

Alabama
217,800
Turbidity
<
50
NTU
Alaska
(AK)
217,800
TSS
>
20
microns
2
year
/
6
hour
After
0.5
inch
rainfall
and
every
7
days
Inspector
must
be
qualified
personnel
provided
by
the
discharger.

Arizona
217,800
Arkansas
217,800
10year
/
24hour
Every
7
days
Developers
must
submit
erosion
and
sediment
control
plan
and
storm
water
pollution
prevention
plan
before
filing
a
notice
of
intent.
Sites
10
acres
or
more
need
temporary
or
permanent
sediment
basin.
Sites
less
than
10
acres
need
sediment
traps
and
silt
fences.

California
(CA)
217,800
2
year
/
24
hour
After
0.5
inch
rainfall
Inspections
will
be
performed
before
anticipated
storm
events,
during
extended
storm
events,
and
after
storm
events,
and
once
each
24­
hour
period
during
extended
storm
events
to
identify
BMP
effectiveness
and
implement
repairs
or
design
changes
as
soon
as
feasible
depending
on
field
conditions.
Discharger
is
also
responsible
for
inspecting
and
cleaning
all
public
and
private
roads
for
sediment.
Construction
activities
that
fall
under
the
jurisdiction
of
the
California
Department
of
Transportation
(CALTRANS)

have
separate
permit
and
regulations.

Colorado
(CO)
217,800
Any
precipitation
or
snowmelt
event
that
causes
erosion
and
every
14
days
Storm
water
management
plan
must
be
submitted
to
state
for
a
10
day
review,
as
well
as
be
retained
on
site.

Connecticut
217,800
80%
TSS
reduction
Delaware
5,000
80%
TSS
reduction
0.5
inch
Florida
,
DEP,
Northern
District
(only
applies
in
NW
Florida)
217,800
80%
TSS
reduction
0.5
inch*
*>
100
acres,
1
inch
rainfall,
<100
acres,
0.5
inch
rainfall.

Florida,
South
Florida
Water
Management
District
(General,
Standard
General,

Noticed
General
and
Individual
Permits)
435,600
1
inch
Florida,
Southwest
Florida
Water
Management
District
217,800
0.5
inch
Florida,
St.
Johns
River
Water
Management
District
217,800
Turbidity
<29
NTU
Florida,
Suwannee
River
Water
Management
District
43,560
80%
TSS
reduction
1
inch
Georgia
47,916
Turbidity
<
10­
25
NTU*
25
year
/
24
hour
*<
25
nephelometric
turbidity
units
for
waters
supporting
warm
water
fisheries,
or
<10
nephelometric
turbidity
units
for
waters
classified
as
trout
waters.

A­
1
Table
A­
1:
State
Regulations
on
the
Control
of
Construction
Phase
Storm
Water
Geographic
Area
Name
Disturbed
Area
Limit
for
Permet
Coverage
(feet
2
)
Numeric
Standard
or
Pollutant
Reduction
Requirement
Minimum
Depth
of
Runoff
or
Storm
Return
Frequency
to
Treat
for
Water
Quality
Management
(per
acre)
Maximum
Allowed
Denuded
Acreage
or
Soil
Stablilization
Requirement
Visual
Inspection
Frequency
Notes
Hawaii
(HI)
217,800
After
0.5
inch
rainfall
and
every
7
days
during
dry
season,
every
day
during
rainy
season
Construction
shall
be
phased
for
large
projects;
one
phase
must
be
stabilized
before
another
can
begin.
50
days
maximum
from
destruction
of
pre­
construction
conditions
to
temporary
stabilization.

Idaho
(ID)
217,800
After
0.5
inch
rainfall
and
every
14
days
Illinois
217,800
3,600
cubic
feet
per
acre
Every
7
days
Indiana
217,800
Every
7
calendar
days
and
within
24
hours
of
0.5
inch
of
precipitation
Iowa
217,800
80%
TSS
reduction
Every
7
days
Kansas
217,800
At
least
once
per
week
Kentucky
217,800
Goal
of
80
%
TSS
reduction
(compared
to
pre­
construction
conditions)

Louisiana
217,800
Maine
217,800
40­
80%
TSS
reduction
2
year
Maryland
5,000
80%
TSS
reduction*
2
year
/
24
hour
*Based
on
the
average
annual
TSS
loading
from
all
storms
less
than
or
equal
to
the
2
year/
24
hour
storm.

Massachusetts
217,800
80%
TSS
reduction
2
year
/
24
hour
Michigan
43,560
3,600
cubic
feet
per
acre
Encourage
weekly
inspections
Sites
>10
acres
require
onsite
temporary
basin.

Minnesota
217,800
0.5
inch
1
time
every
7
days
or
within
24
hours
after
a
significant
rain
event
which
results
in
runoff
leaving
a
construction
site.

Mississippi
217,800
Missouri
217,800
Settleable
Solids
<

0.5
­2.5
mL/
L/
hour*
Periodic
*2.5
mL/
L/
hour
for
normal
land
disturbance,
0.5
mL/
L/
hour
for
land
disturbance
within
sensitive
areas.

A­
2
Table
A­
1:
State
Regulations
on
the
Control
of
Construction
Phase
Storm
Water
Geographic
Area
Name
Disturbed
Area
Limit
for
Permet
Coverage
(feet
2
)
Numeric
Standard
or
Pollutant
Reduction
Requirement
Minimum
Depth
of
Runoff
or
Storm
Return
Frequency
to
Treat
for
Water
Quality
Management
(per
acre)
Maximum
Allowed
Denuded
Acreage
or
Soil
Stablilization
Requirement
Visual
Inspection
Frequency
Notes
Montana
(MT)
217,800
2
year
/
24
hour
After
0.5
inch
rainfall
and
every
7
days
Dischargers
must
submit
with
the
state
application
form
a
stormwater
erosion
control
plan
(SWECP)
that
resembles
EPA's
construction
site
SWPPP.
Permit
coverage
begins
only
when
Montana
DEQ
reviews
and
approves
SWECP.
Must
also
inspect
everyday
during
prolonged
precipitation
or
snowmelt
periods.
A
registered
PE
must
prepare
the
ESC
plan
if
site
is
greater
than
20
acres.
Also
regulate
down
to
1
acre
if
construction
site
within
100
feet
of
a
surface
water
body.
Montana
has
a
sediment
and
erosion
control
guidance
manual
that
lists
standard
use
BMPs.
If
other
BMPs
are
used,
they
need
to
be
submitted
with
ESC
plan
to
the
state
for
approval.
For
slopes
steeper
than
3:
1
and
greater
than
5
vertical
feet,
surface
roughening
is
required.
Filter
fences
should
be
used
on
drainage
areas
>1acre;
sediment
traps
should
only
be
used
on
drainage
areas
>
3
acres;
and
temporary
sediment
ponds
should
only
be
used
on
drainage
areas
>
10
acres.

NC
43,560
Y
20
acres
total
disturbance
at
any
given
time
for
areas
discharging
to
high
quality
waters
Every
7
days
Nebraska
217,800
Once
a
month.

Nevada
217,800
New
Hampshire
100,000
New
Jersey
5,000
New
Mexico
217,800
Y
New
York
217,800
0.5
inch
North
Dakota
217,800
Y
Ohio
217,800
Oklahoma
217,800
3,600
cubic
feet
per
acre
Y
A
vegetated
buffer
zone
of
at
least
100
ft
must
be
retained
or
successfully
established
between
the
area
disturbed
during
construction
and
all
perennial
or
intermittent
streams
on
or
adjacent
to
the
construction
site.
A
vegetated
buffer
zone
at
least
50
ft
wide
must
be
retained
or
established
between
the
area
disturbed
during
construction
and
all
ephemeral
streams
or
drainages.

Treatment
volume
is
the
lesser
of
3,600
or
the
runoff
volume
of
a
2
year
24
hour
storm.

Oregon
(OR)
217,800
Every
7
days,
and
daily
during
periods
of
stormwater
runoff
and
snowmelt
runoff;
only
every
14
days
during
periods
of
7
days
or
more
of
non

construction
activity.
If
site
is
>20
acres,
erosion
and
sediment
control
plan
must
be
prepared
by
a
Professional
Engineer,
or
Registered
Landscape
Architect,
or
Certified
Professional
in
Erosion
and
Sediment
Control,
and
plan
must
be
submitted
90
days
before
construction
begins.
All
permittees
must
submit
an
Oregon
Land
Use
Compatibility
Statement
if
they
do
not
already
have
one
on
file
with
Oregon
DEQ.

Pennsylvania
217,800
5
year
Y
Basins
should
drain
no
quicker
than
4
days
and
no
longer
than
7
days.

A­
3
Table
A­
1:
State
Regulations
on
the
Control
of
Construction
Phase
Storm
Water
Geographic
Area
Name
Disturbed
Area
Limit
for
Permet
Coverage
(feet
2
)
Numeric
Standard
or
Pollutant
Reduction
Requirement
Minimum
Depth
of
Runoff
or
Storm
Return
Frequency
to
Treat
for
Water
Quality
Management
(per
acre)
Maximum
Allowed
Denuded
Acreage
or
Soil
Stablilization
Requirement
Visual
Inspection
Frequency
Notes
Rhode
Island
217,800
80­
90%
TSS
reduction
10
year
South
Carolina
>87,120
80%
TSS
reduction
3,600
cu
ft
/
ac
Y
Trapping
efficiency
is
a
performance
based
requirement
for
any
BMPs.
The
major
requirements
for
storm
water
control
plans
are:
application,
location
map,
type
and
location
of
BMP's,
construction
sequencing,
location
of
disturbed
areas,
property
line
&
waters
of
the
state,
standard
notes,

grassing
specifications.
The
minimum
required
volume
for
water
quality
management
is
3600
cubic
feet
for
a
disturbed
area
of
more
than
10
acres.

If
there
is
not
a
sediment
basin
of
3600
cubic
feet
and
the
drainage
area
is
less
than
10
acres,
then
sediment
traps,
silt
fences,
or
equivalent
measures
are
needed
for
sideslope
and
downslope
boundaries
for
the
construction
area.
However,
the
first
0.5
inch
rainfall
runoff
in
a
24­
hr
period
is
applicable
to
the
coastal
counties
only.

South
Dakota
217,800
5
year
Tennessee
217,800
Y
The
permittee
shall
maintain
records
of
checks
and
repairs.

Texas
217,800
3,600
cubic
feet
per
acre
Utah
(UT)
217,800
24
hour
OR
1
inch
storm
event
Once
every
14
days,
before
anticipated
storm
events
expected
to
cause
significant
runoff,
and
within
24
hours
of
the
end
of
a
storm
that
is
0.5
inch
or
greater.
Where
sites
have
been
finally
or
temporarily
stabilized,
or
when
runoff
is
unlikely
due
to
winter
conditions,
or
during
seasonal
arid
periods
in
arid
areas
and
semi­
arid
areas
inspections
shall
be
conducted
at
least
once
every
30
days.
10yr,
24hr
storm
event
for
water
quality
is
for
10
acres
or
greater.
For
areas
less
than
10
acres,
or
where
calculations
for
volume
of
runoff
for
disturbed
acres
is
not
performed,
a
sediment
basin
providing
3600
cubic
feet
of
storage
per
acre
drained
or
equivalent
control
measures
shall
be
provided.
1)
Where
the
initiation
of
stabilization
measures
by
the
14th
day
after
construction
activity
temporary
or
permanently
cease
is
preclude
by
snow
cover
or
frozen
ground
conditions,
stabilization
measures
shall
be
initiated
as
soon
as
possible.
2)
In
arid
areas
,
semi­
arid
areas,
and
areas
experiencing
droughts
where
the
initiation
stabilization
measures
by
the
14th
day
after
construction
activity
has
temporarily
or
permanently
ceased
is
precluded
by
seasonal
arid
conditions,
stabilization
measures
shall
be
initiated
as
soon
as
practicable.

Vermont
217,800
Virginia
217,800
3,600
cubic
feet
per
acre
Y
Sediment
basins
required
for
sites
of
10
acres
or
more
(except
those
with
final
stabilization);
for
sites
<10
acres,
same
units
required
but
only
for
sideslope
and
downslope
boundaries
of
construction
sites.

Washington
(WA),
Large
Parcel
>43,560
24
hour
/
6
month
2
days
between
October
1
and
April
30
(I.
e.,
the
wet
season);
7
days
between
May
1
to
September
30
(dry
season)
A­
4
Table
A­
1:
State
Regulations
on
the
Control
of
Construction
Phase
Storm
Water
Geographic
Area
Name
Disturbed
Area
Limit
for
Permet
Coverage
(feet
2
)
Numeric
Standard
or
Pollutant
Reduction
Requirement
Minimum
Depth
of
Runoff
or
Storm
Return
Frequency
to
Treat
for
Water
Quality
Management
(per
acre)
Maximum
Allowed
Denuded
Acreage
or
Soil
Stablilization
Requirement
Visual
Inspection
Frequency
Notes
Washington
(WA),
Small
Parcel
<43,560
24
hour
/
6
month
2
days
between
October
1
and
April
30
(I.
e.,
the
wet
season);
7
days
between
May
1
to
September
30
(dry
season)

West
Virginia
130,680
2
year
Y
Wisconsin
*217800
Y
Wyoming
(WY)
217,800
Turbidity
<10­
15
NTU
Inspect
every
7
days,

except
during
seasonal
shutdowns
and
during
the
period
following
completion
of
construction
but
prior
to
return
of
the
site
to
"finally
stabilized"
conditions
and
termination
of
coverage,
then
the
site
must
be
inspected
every
quarter.

A­
5
Development
Document
for
Construction
and
Development
Proposed
Effluent
Guidelines
June
2002
APPENDIX
B:

SUPPORTING
COST
DATA
Development
Document
for
Construction
and
Development
Proposed
Effluent
Guidelines
June
2002
B­
1
APPENDIX
B:
SUPPORTING
COST
DATA
OVERVIEW
EPA
estimated
a
reference
or
standard
quantity
for
each
costed
best
management
practice
(BMP)
that
could
be
applied
to
construction
erosion
and
sediment
controls
(ESCs)
(e.
g.,
621
feet
of
silt
fence
for
a
3­
acre
single­
family
residential
construction
site).
These
reference
quantities
were
set
to
serve
a
range
of
site
conditions
and
slopes
consistent
with
the
requirements
of
the
proposed
rule.
Reference
quantities
were
not
varied
between
ecoregions
but
were
varied
in
response
to
alternative
levels
of
management
(i.
e.,
regulatory
options
explored
by
EPA)
as
shown
in
Table
B­
1.
Note
that
only
where
values
in
Table
B­
1
differ
between
options
and
baseline
values
is
there
expected
to
be
a
change
in
the
cost
for
site
ESCs.

Reference
quantities
of
various
ESCs
(or
construction
controls)
are
listed
in
Tables
B­
2
through
B­
10,
along
with
unit
costing
and
the
assumptions
used
in
EPA's
compliance
cost
assessment.
Note
that
for
some
controls,
reference
quantities
are
given
in
terms
of
the
number
of
units
that
will
be
constructed
(i.
e.,
the
number
of
construction
entrances
anticipated
for
a
certain
size
site).
In
addition,
where
unit
costs
are
nonlinear
(i.
e.,
the
unit
cost
varies
with
the
size
of
the
unit),
both
a
design
quantity
and
a
number
of
units
per
site
size
class
are
required
to
estimate
ESC
compliance
costs.
An
example
of
this
is
sediment
basins,
where
the
total
volume
(the
site
size
in
acres
times
3,600
cubic
feet
per
acre)
is
apportioned
into
a
number
of
installations
(i.
e.,
a
70­
acre
site
is
estimated
to
have
2
installations).
This
process
helps
ensure
that
any
economies
of
scale
in
the
calculation
of
compliance
costs
are
reasonable.

National
BMP
costs
were
determined
using
the
following
three
equations
that
relate
site
size
class/
land
use
type
models
to
ESC
capital,
design,
and
operation
and
maintenance
costs.
Note
that
Table
B­
11
contains
the
regional
adjustment
factors
that
customize
cost
estimates
for
the
19
ecoregions
defined
by
EPA
to
make
its
analysis
more
representative
of
actual
conditions.

Figure
B­
1
presents
a
flowchart
summarizing
the
overall
costing
methodology.
Development
Document
for
Construction
and
Development
Proposed
Effluent
Guidelines
June
2002
B­
2
TRCC
RAF
LM
S
N
a
Q
N
i
i
i
b
i
=
 
 
 
 
 
 
 
 
 
 
 
 
=
 
*
*
*
*
1
17
TRDC
RAF
DF
LM
S
N
a
Q
N
i
i
i
i
b
i
=
 
 
 
 
 
 
 
 
 
 
 
 
 
 
=
 
*
*
*
*
*
1
17
TROMC
RAF
OM
LM
S
N
a
Q
N
i
i
i
i
b
i
=
 
 
 
 
 
 
 
 
 
 
 
 
 
 
=
 
*
*
*
*
*
1
17
TRCC
=
Total
Regional
Capital
(Installation)
Cost
for
a
site
size
class/
land
use
model
Qi
=
Quantity
of
elements
required
per
installation
Ni
=
Number
of
elements
required
for
a
single
site
size
class/
land
use
S
=
Estimated
number
of
sites
in
the
site
size
class/
land
use
a
=
Multiplier
for
converting
quantity
to
national
average
cost
in
2000
dollars
b
=
Exponent
for
converting
quantity
to
national
average
cost
in
2000
dollars
RAF
=
Regional
adjustment
factor
for
converting
national
average
costs
to
region­
specific
costs
LM
=
Level
of
management;
values
between
0
and
2
that
indicate
the
degree
of
application
of
the
element.
A
value
of
1
indicates
the
full
application
of
an
element
based
on
the
reference
condition
TRDC
=
Total
Regional
Design
Costs
DFi=
Design
factor,
a
multiplier
which
represents
the
design
cost
as
a
percent
of
capital
costs
Qi
=
Quantity
of
elements
required
per
installation
Ni
=
Number
of
elements
required
for
a
single
site
size
class/
land
use
S
=
Estimated
number
of
sites
in
the
site
size
class/
land
use
a
=
Multiplier
for
converting
quantity
to
national
average
cost
in
2000
dollars
b
=
Exponent
for
converting
quantity
to
national
average
cost
in
2000
dollars
RAF
=
Regional
adjustment
factor
for
converting
national
average
costs
to
region­
specific
costs
LM
=
Level
of
management;
values
between
0
and
2
that
indicate
the
degree
of
application
of
the
element.
A
value
of
1
indicates
the
full
application
of
an
element
based
on
the
reference
condition
LM
=
Level
of
management;
values
between
0
and
2
that
indicate
the
degree
of
application
of
the
element.
A
value
of
1
indicates
the
full
application
of
an
element
based
on
the
reference
condition.
TROMC
=
Total
Regional
Operation
and
Maintenance
Costs
OMi=
Operation
and
Maintenance
factor,
a
multiplier
which
represents
the
annual
operation
and
maintenance
cost
which
ensure
proper
operation
of
the
element
Qi
=
Quantity
of
elements
required
per
installation
Ni
=
Number
of
elements
required
for
a
single
site
size
class/
land
use
S
=
Estimated
number
of
sites
in
the
site
size
class/
land
use
a
=
Multiplier
for
converting
quantity
to
national
average
cost
in
2000
dollars
b
=
Exponent
for
converting
quantity
to
national
average
cost
in
2000
dollars
RAF
=
Regional
adjustment
factor
for
converting
national
average
costs
to
region­
specific
costs
LM
=
Level
of
management;
values
between
0
and
2
that
indicate
the
degree
of
application
of
the
element.
A
value
of
1
indicates
the
full
application
of
an
element
based
on
the
reference
condition.
Development
Document
for
Construction
and
Development
Proposed
Effluent
Guidelines
June
2002
B­
3
Table
B­
1.
BMP
Quantity
Adjustment
Factors
for
Baseline
and
the
Proposed
Options
Costed
Items
Baseline
Construction
Option
1—
Inspection/
Certification
Option
2—
Inspection/
Certification
with
Codification
of
CGP
Silt
Fence
1.0
1.0
1.0
Runoff
Diversion
1.0
1.0
1.0
Construction
Phasing
0.0
0.0
0.0
Mulch
1.0
1.0
1.2
Seed
and
Mulch
0.0
0.0
0.0
Construction
Entrance
1.0
1.0
1.0
Stone
Check
Dam
1.0
1.0
1.0
Sediment
Trap
1.0
1.0
1.0
Sediment
Pond
1.0
1.0
1.1
E&
S
Certification
0.0
1.0
1.1
E&
S
Inspection
0.0
1.0
1.0
Polyacrylamide
(PAM)
0.0
0.0
0.2
Alum
Treatment
0.0
0.0
0.0
Monitoring
of
Effluent
Quality
0.0
0.0
0.0
Development
Document
for
Construction
and
Development
Proposed
Effluent
Guidelines
June
2002
B­
4
Table
B­
2.
Quantities
of
Erosion
and
Sediment
Control
Items
For
Assessing
Compliance
Costs
for
the
Construction
Industry
Site
size
Feet
of
Silt
Fence
Feet
of
Diversion
Dike
Singlefamily
Multifamily
Commercial
Indus
trial
Single
family
Multi
family
Com
mercial
IndusAcres
trial
1
­
­
­
­
­
­
­


3
621
722
361
361
621
722
361
361
7.5
1,553
1,143
600
600
1,553
1,143
600
600
25
5,175
3,129
2,087
2,087
5,175
3,129
2,087
2,087
70
14,490
5,238
3,492
3,492
14,490
5,238
3,492
3,492
200
41,400
8,853
5,902
5,902
41,400
8,853
5,902
5,902
Both
silt
fencing
and
diversion
dike
lengths
were
based
on
207
feet
per
acre
on
the
site.
Costs
for
new
installation
of
silt
fence
are
based
on
$0.
92/
ft
length,
excluding
profit
and
overhead
(R.
S.
Means,
2000).
Costs
for
new
installation
of
diversion
ditch
are
based
on
$0.
55/
ft
length
installation,
excluding
profit
and
overhead
(R.
S.
Means,
2000).

Table
B­
3.
Quantities
of
Erosion
and
Sediment
Control
Items
For
Assessing
Compliance
Costs
for
the
Construction
Industry
Site
Size
Mulched
Acreage
To
Control
Erosion
Acres
Single­
family
Multifamily
Commercial
Industrial
1
0.0
0.0
0.0
0.0
3
0.8
0.8
0.8
0.8
7.5
1.9
1.9
1.9
1.9
25
6.3
6.3
6.3
6.3
70
17.5
17.5
17.5
17.5
200
50.0
50.0
50.0
50.0
For
sites
larger
than
1acre,
mulching
is
limited
to
the
site
acreage
times
half
the
percentage
of
ultimate
impervious
area
as
a
temporary
means
to
stabilize
denuded
surfaces.
The
maximum
coverage
is
set
to
25%
of
the
total
site
acreage.
Cost
to
mulch
is
set
to
$0.
20
per
square
yard
for
materials/
installation
without
overhead
and
profit
(R.
S.
Means,
2000).
Development
Document
for
Construction
and
Development
Proposed
Effluent
Guidelines
June
2002
B­
5
Table
B­
4.
Quantities
of
Erosion
and
Sediment
Control
Items
For
Assessing
Compliance
Costs
for
the
Construction
Industry
Site
Size
Acres
Treated
with
PAM
Acres
Single­
family
Multifamily
Commercial
Industrial
1
0.00
0.00
0.00
0.00
3
0.84
1.32
1.50
1.50
7.5
2.10
3.29
3.75
3.75
25
7.00
10.96
12.50
12.50
70
19.60
30.70
35.00
35.00
200
56.00
87.72
100.00
100.00
PAM
is
costed
at
$200
per
acre
per
treatment
based
on
a
survey
of
commercial
vendors
and
assuming
costs
are
similar
to
herbicide
for
soil
treatment
($
0.
04
per
square
yard
without
profit
and
overhead
based
on
spraying
from
truck).
The
acreage
treated
is
equal
to
the
site
size
times
the
ultimate
impervious
percentage,
to
a
maximum
of
50%
of
the
site
size.

Table
B­
5.
Quantities
of
Erosion
and
Sediment
Control
Items
For
Assessing
Compliance
Costs
for
the
Construction
Industry
The
Number
of
Equal
Size
Units
Installed
to
Provide
Required
Protection
Site
Size
Number
of
Stone
Check
Dam
Number
of
Sediment
Trap
Singlefamily
Multifamily
Commercial
Indus
trial
Single
family
Multi
family
Com
mercial
IndusAcres
trial
1
0
0
0
0
0
0
0
0
3
0
0
0
0
1
1
1
1
7.5
10
10
10
10
1
1
1
1
25
35
35
35
35
0
0
0
0
70
50
50
50
50
0
0
0
0
200
100
100
100
100
0
0
0
0
For
stone
check
dam,
assume
approximately
one
unit
per
5
acres
for
sites
larger
than
5
acres
at
a
cost
of
$45.36
per
installation,
excluding
overhead
and
profit
(Phase
II
Economic
Analysis
for
Phase
II
Storm
Water
Regulations).
Sediment
trap
of
3,600
cubic
feet
per
acre
served
at
a
cost
of
$0.22
per
cubic
foot
volume
(excludes
profit
and
overhead).
Development
Document
for
Construction
and
Development
Proposed
Effluent
Guidelines
June
2002
B­
6
Table
B­
6.
Quantities
of
Erosion
and
Sediment
Control
Items
For
Assessing
Compliance
Costs
for
the
Construction
Industry
Site
Size
Number
of
Sediment
Basins
Acres
Single­
family
Multifamily
Commercial
Industrial
1
0
0
0
0
3
0
0
0
0
7.5
1
1
1
1
25
2
2
2
2
70
2
2
2
2
200
4
4
4
4
Sediment
pond
of
3,600
cubic
feet
per
acre
served.
Cost
in
dollars
is
computed
from
the
equation:
[
0.76
x
7.47
x
(volume
required,
cubic
feet/
number
of
ponds
per
site
size)
.78
]
The
value
of
0.76
removes
overhead
and
profit
from
cost
estimate.

Table
B­
7.
Quantities
of
Erosion
and
Sediment
Control
Items
For
Assessing
Compliance
Costs
for
the
Construction
Industry
Site
Size
Number
of
Construction
Entrances
Acres
Single­
family
Multifamily
Commercial
Industrial
1
0
0
0
0
3
1
1
1
1
7.5
1
1
1
1
25
1
1
1
1
70
2
2
2
2
200
4
4
4
4
Costs
for
construction
entrance
based
on
$6.92
per
square
yard
(gravel
installed)
for
a
footprint
covering
100
square
yard,
excluding
profit
and
overhead
(R.
S.
Means,
2000).
Development
Document
for
Construction
and
Development
Proposed
Effluent
Guidelines
June
2002
B­
7
Table
B­
8.
Quantities
of
Erosion
and
Sediment
Control
Items
For
Assessing
Compliance
Costs
for
the
Construction
Industry
Administrative
BMPs
for
Erosion
and
Sediment
Control
Management
Site
Size
E&
S
Site
Inspection
Acres
Single­
family
Multifamily
Commercial
Industrial
1
0
0
0
0
3
1
1
1
1
7.5
1
1
1
1
25
2
2
2
2
70
7
7
7
7
200
20
20
20
20
E&
S
Site
Inspection
includes
multiple
site
visits
by
a
certified
inspector
to
verify
the
proper
installation
and
operation
of
ESC
BMPs.
Values
above
are
the
number
of
half­
day
site
inspections.
Costs
are
based
on
16
hours
of
inspection/
documentation
time
per
10­
acre
unit
of
a
site,
at
a
rate
of
$28.44
per
hour.

Table
B­
9.
Quantities
of
Erosion
and
Sediment
Control
Items
For
Assessing
Compliance
Costs
for
the
Construction
Industry
Administrative
BMPs
for
Erosion
and
Sediment
Control
Management
Site
Size
E&
S
Site
Certification
of
Sedimentation
Basins
Acres
Single­
family
Multifamily
Commercial
Industrial
1
0
0
0
0
3
1
1
1
1
7.5
1
1
1
1
25
1
1
1
1
70
2
2
2
2
200
4
4
4
4
E&
S
Site
Certification
includes
multiple
site
visits
by
a
certified
inspector
to
verify
the
proper
installation
of
sedimentation
basins.
Costs
based
on
2
hours
of
inspection/
documentation
by
a
licensed
engineer
per
10­
acre
unit
of
a
site,
at
a
rate
of
$56.74
per
hour.
Development
Document
for
Construction
and
Development
Proposed
Effluent
Guidelines
June
2002
B­
8
Table
B­
10.
Quantities
of
Erosion
and
Sediment
Control
Items
For
Assessing
Compliance
Costs
for
the
Construction
Industry
Site
Size
Phasing
of
Construction
Acres
Single­
family
Multifamily
Commercial
Industrial
1
0
0
0
0
3
0
0
0
0
7.5
0
0
0
0
25
2
2
2
2
70
6
6
6
6
200
19
19
19
19
For
sites
larger
than
10
acres,
the
number
of
remobilizations
required
is
based
on
a
maximum
of
10
acres
denuded
at
any
single
time
to
prevent
large
unstabilized
construction
sites.
Costs
are
based
on
$1,000
per
remobilization.
June
2002
B­
9
Table
B­
11.
Regional
Compliance
Cost
Adjustment
Factors
Region
or
Ecoregion
Regional
Compliance
Cost
Adjustment
Factors
1
0.85456
2
0.98351
3
0.9
4
0.78103
5
0.85711
6
0.85768
7
0.87
8
1.03221
9
0.877
10
0.99576
11
0.81034
12
0.85357
13
0.93573
14
0.9076
15
1.09438
16
1.1285
17
1.05151
18
1.04609
19
1.05169
Development
Document
for
Construction
and
Development
Proposed
Effluent
Guidelines
June
2002
B­
10
Figure
B­
1.
Overall
Costing
Methodology
