Stormwater Management Facility
Construction Certification Requirements Guidelines
Planter Box Photo Requirements
for Certification:
Clear pictures of planter box length, width
and depth.
Pictures of applied waterproofing
material.
Perforated underdrain pipe (3/8” holes (4
rows) drilled every 6” on center or as
required by approved plan).
Depth of #57 stone with clear picture of
measurements.
Depth of choker stone with clear picture of
measurements.
Depth of bio-soil with clear picture of
measurements (MUST be from
approved vendor).
Mulch with clear picture of measurements
(as required by approved plans).
Clear picture of ponding depth measurement
from top of mulch or top of soil (as required
by approved plans).
Clear picture of freeboard (top of the
overflow to top of the planter box wall).
Clear picture of number of plants in each
planter box.
Downspout location with appropriate splash
block or rocks installed.
Downspout must drain onto the splash block
or rocks and downspout must be located
away from overflow pipe, preferably on the
opposite end of the planter box.
Approved Soil Vendor List:
https://topics.arlingtonva.us/building/stormwater-
management-notices-to-industry/
Listed under Bioretention
Photos submitted to Arlington County become the property of
Arlington County.
Send As-built Certifications for review to:
Planter Box
Requirements
*Remember: Planter box construction must follow
the approved plan.
Provide receipts for materials used,
including (but not limited to):
Waterproofing material
#57 stone
Choker stone
Filter media (showing media is from an
approved vendor)
Mulch
Species and quantities of plants that were
installed
R.C
. Field
s & A
ssociates, In
c.
Clear width dimensions
Clear length dimensions
Label if multiple
boxes (every photo)
Clear depth dimensions
Choker stone depth
*Remember: Photos must be clear enough that
the depth measurements are legible.
Photo showing clear freeboard depth measurement
Bio-soil depth; uncompacted soil
Overall photo to show
number of plants
12
Downspout and splash
rocks or block
Close-up photo showing clear ponding depth
measurement.
13
Waterproofing and perforated
underdrain
#57 stone depth
measurement
Close-up of depth
Close-up of depth
Close-up showing clear depth measurement of mulch
WS
D H
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& D
alton
WS
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& D
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& D
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& D
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WS
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& D
alton
WS
D H
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es; McG
ettigan
& D
alton
WS
D H
om
es; McG
ettigan
& D
alton
WS
D H
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es; McG
ettigan
& D
alton
WS
D H
om
es; McG
ettigan
& D
alton
WS
D H
om
es; McG
ettigan
& D
alton
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.C. F
ields &
Asso
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R.C
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s & A
ssociates, In
c.
R.C
. Field
s & A
ssociates, In
c.
R.C
. Field
s & A
ssociates, In
c.
R.C
. Field
s & A
ssociates, In
c.