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Last updated: November 5, 2018
Construction of Permanent Stormwater BMPs/Facilities Inspection Checklist
Objective: Inspections conducted during construction activities should verify proper installation and maintenance of
permanent best management practices (BMPs).
Project Information
Project Name:
Project/Permit Number:
Location:
Property Owner Information
Owner Name: __________________________________
Owner Phone Number: __________________________
Owner Email Address: ___________________________
Inspection Information
Inspector Name: _____________________________________
Date of Inspection: ___________________________________
Time of Inspection: ___________________________________
Contractor Information
Contractor Name: _______________________________
Lead Contact Name: ___________________________________
Lead Phone Number: __________________________________
Lead E-mail Address: __________________________________
Certified Erosion and Sediment Control Lead (CESCL)
CESCL Name: _________________________________________________
CESCL Certification Expiration Date: _____________________
CESCL Phone Number: ________________________________
CESCL E-mail Address: _________________________________
Is the inspection occurring:
After a holiday?
On a Monday morning?
On a Friday afternoon?
Before a predicted storm?
During a storm?
After a storm? (<24 hours)
Does the contractor have appropriate documentation onsite or within reasonable access to the site?
Yes
Action required
N/A
☐Site Map/Plan
☐Construction SWPPP
☐Soil and Vegetation Management Plan
☐ESC Plan
☐Daily Log
☐Discharge monitoring reports (DMRs)
☐Other: _________________
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Last updated: November 5, 2018
Protection of Permanent Stormwater BMPs/Facilities
Item #
Inspection Item
Applicable BMPs/Specifications
Satisfactory?
13A
Are the following clearly
marked and in good
condition?
LID BMPs (infiltration
and dispersion)
Flagging
High visibility fence
Silt fence
☐Yes
☐Action required
☐N/A N/A
13B
Have LID BMPs (infiltration
and dispersion) been
protected from:
Siltation
Compaction
Construction sequencing
☐Yes
☐Action required
☐N/A
13C
Were precautions taken in
the choice of excavation
equipment?
Lightweight, low ground-contact pressure
equipment
Machinery (e.g., backhoe/excavator); only
operated outside permanent BMP (except for
permeable pavement)
☐Yes
☐Action required
☐N/A
13D
Are protective surfaces
placed over any permeable
pavement areas used for
construction staging?
Waterproof tarps
Steel plates
☐Yes
☐Action required
☐N/A
13E
Have proper soil
amendments been provided
in planting and turf/lawn
areas?
See Post-Construction Soil Quality and Depth
BMP in the Stormwater Management Manual
for Western Washington
☐Yes
☐Action required
☐N/A
13F
Has appropriate vegetation
and mulch been installed?
Site is permanently stabilized
☐Yes
☐Action required
☐N/A
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Last updated: November 5, 2018
Bioretention/Rain Gardens Installation
Item #
Inspection Item
Applicable BMPs/Specifications
Satisfactory?
B-1
Are curb and gutters blocked
during _______?
Bioretention soil media
(BSM) installation
Mulch installation
☐Planting activities
Block and gravel barrier
Sandbag berm
Rock berm
☐Yes
☐Action required
☐N/A
B-2
Did appropriate actions
occur following excavation
and prior to BSM placement?
Sediment deposits removed
Subgrade raked/scarified to ≥ 3 inches
☐Yes
☐Action required
☐N/A
B-3
Was the underdrain installed
correctly?
Pipe meets design specs
Aggregate meets design specs
Not wrapped in geotextile fabric
☐Yes
☐Action required
☐N/A
B-4
Was the BSM installed
correctly?
Meets design specs
< 6 inches per layer
Compacted to 85% of maximum dry density
☐Yes
☐Action required
☐N/A
B-5
Did appropriate actions
occur following BSM
installation and prior to
planting?
Compaction inspected
BSM/rain garden soil aerated prior to planting if
compaction is observed
☐Yes
☐Action required
☐N/A
B-6
Was the BSM installed at the
proper grade and the
required ponding depth
provided below the
overflow?
Cell is not overfilled with mulch and BSM
Required ponding depth is provided
☐Yes
☐Action required
☐N/A
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Last updated: November 5, 2018
Permeable Pavement Installation
Item #
Inspection Item
Applicable BMPs/ Specifications
Satisfactory?
P-1
Did appropriate actions
occur following excavation
and prior to aggregate base
placement?
Sediment deposits removed
Subgrade raked/scarified to ≥ 3 inches
☐Yes
☐Action required
☐N/A
P-2
Was the subgrade properly
prepared and protected?
Planned construction sequencing followed
Subgrade inspected and approved prior to
placement of base materials
Subgrade not used for construction access or
staging
☐Yes
☐Action required
☐N/A
P-3
Was the impermeable liner
installed correctly?
Liner meets design specs
No tears
≥ 2 inches of slack where liner is mechanically
fastened
Attached to perimeter wall after backfilling
Liner properly bedded to avoid punctures
☐Yes
☐Action required
☐N/A
P-4
Was the subsurface overflow
installed correctly?
Pipe meets design specs
Aggregate meets design specs
Not wrapped in geotextile fabric
☐Yes
☐Action required
☐N/A
P-5
Was the cleanout installed
correctly?
Cleanout meets design specs
Covers are installed and watertight
☐Yes
☐Action required
☐N/A
P-6
Was the orifice installed
correctly?
Orifice plate installed in the appropriate location
per design specs
☐Yes
☐Action required
☐N/A
P-7
Did appropriate actions
occur following excavation
and prior to aggregate base
placement?
Base materials protected from contamination
Contaminated material replaced
Aggregate materials meet design specs
☐Yes
☐Action required
☐N/A
P-8
Was the water quality
treatment course (optional
layer) installed correctly?
Compaction within the appropriate range
☐Yes
☐Action required
☐N/A
P-9
Did appropriate actions
occur prior to wearing
course placement?
Materials and admixtures protected from
contamination
Materials protected from damage by
equipment, vehicles, and/or weather
☐Yes
☐Action required
☐N/A
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Last updated: November 5, 2018
Permeable Pavement Installation
Item #
Inspection Item
Applicable BMPs/ Specifications
Satisfactory?
P-10
Was the porous asphalt
installed correctly?
Delivered asphalt meets design specs for binder
and gradation (verify load tickets)
No deviation from design line and grade
Uniform surface texture
At least one inspection occurs during
installation of porous asphalt
☐Yes
☐Action required
☐N/A
P-11
Was the pervious concrete
installed correctly?
Number and type of National Ready Mixed
Concrete Association (NRMCA) certified
personnel meets design specs
Test panel meets design specs
Conformance to job mix formula (verify load
tickets, plastic unit weight)
No deviation from design line and grade
Uniform surface texture (no raveling, no areas of
smeared paste, free of ridges/cracks)
At least one inspection occurs during
installation of pervious concrete
☐Yes
☐Action required
☐N/A
P-12
Were the permeable pavers
and/or grass/gravel pave
installed correctly?
Meets design specs
☐Yes
☐Action required
☐N/A
P-13
Did appropriate actions
occur once the pavement
was finished and set?
Pavement covered with plastic to facilitate
proper curing
Covered with geotextile, steel plates, etc. to
protect from other construction activities
☐Yes
☐Action required
☐N/A
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Last updated: November 5, 2018
Notes/Comments:
Summary of Corrective Actions
Are corrective actions needed?
☐Yes, see following table
☐No, none required
Item#
Description and Location
Action Required
Completion Date
Initials
Attach additional page(s) if needed.
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