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Inspection Cover Sheet
Date: _______________
Facility Name: ___________________________________
Facility Address: _________________________________
Facility Owner: __________________________________
Inspector Name: _________________________________
Inspector Phone Number: _________________________
Important Safety Information
•Never enter a confined space or trench unless you have proper Occupational
Health and Safety (OSHA)training. Do not enter any confined space unless the
atmosphere has been checked and proper safety equipment is worn or erected.
•Check the ventilation in the storm water system before using ignitable materials.
Some storm water systems have poor ventilation and can pose a safety risk to the
inspector if the vapor comes in contact with an open flame.
•Always cover or clearly mark excavated areas as potential safety risks if the areas
cannot be filled in by the end of a work day.
Inspection comments:
Storm Water System Operation and Maintenance Handbook 19
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Maintenance Report Form
Date: _______________
Facility Name: ___________________________________
Facility Address: _________________________________
Name of Person Overseeing Maintenance: ____________
Type of System: _________________________________
Date of Last Inspection: ___________________________
Describe maintenance activities, including type of work, completion dates, contractors,
time needed to complete task, and cost.
Storm Water System Operation and Maintenance Handbook 21
OM-9 Catch Basins
Stormwater system feature ✓ Are any of these
conditions present? Problem Recommendation
General
yard wastes or non-degradable
materials (glass, plastic, styrofoam,
etc.) are blocking the front of the
catch basin or grate by 10%
accumulation of
trash and debris
Remove trash and debris from front of catch
basin opening or grate. Dispose of waste
properly.
frame has separated more
than 3/4" from the top slab frame separation Reset frame even with top of slab.
propane, oil, gasoline odor,
offensive color or odor,
or sludge is present
accumulation of
petroleum products or
unknown or
uncharacteristic substances
Contact a qualified hazardous waste
consultant for more information.
top slab has cracks wider
than 1/4" or holes larger
than 2"
defective top slab Replace or repair slab to design specifications.
corner of frame extends
more than 3/4" top slab past
curb face into the street
structural damage to
frame or top of slab
Reset frame even with curb. Replace slab, if
necessary.
catch basin has cracks wider than
1/2" and longer than 3"; soil is
entering the catch basin
through the cracks
defective catch basin
Replace or repair catch basin to original
design specifications. You may need to contact
the design engineer to evaluate the structural
integrity of the catch basin.
catch basin has settle more than1’
or has moved more than
2" out of alignment
basin settlement/alignment
Replace or repair catch basin to original
design specifications. You may need to contact
the design engineer to evaluate the structural
integrity of the catch basin.
grate bars are broken
or grate is missing
grate is damaged
or missing
Replace or repair grate to design
specifications.
Inlet/outlet pipes
trash or sediment in the inlet/outlet
pipe is blocking more than 1/3" of
the diameter of the pipe
trash or sediment
accumulation
Remove trash and sediment from
pipes. Dispose of wastes properly.
piping has cracks wider than 1/2"
and longer than 1’ at the joint;
soil is entering the catch basin
through the cracks
cracked pipes Replace or repair pipe to original design
specifications.
vegetation is growing in
inlet/outlet pipe joints overgrown vegetation Remove vegetation from pipe joints.
Storm Water System Operation and Maintenance Handbook 39
OM-10 Pipes
Stormwater system feature ✓ Are any of these
conditions present? Problem Recommendation
General
accumulated sediment or
trash exceeds 20% of the
diameter of the pipe
excess accumulation of
sediment or trash
Clean out sediment and trash from pipe. You
can use a high pressure hose, vacuum suction,
or other appropriate cleaning method.
Contact the design engineer for information
on appropriate cleaning methods for your
type of drainage system.
vegetation is
impeding water flow overgrown vegetation
Clean out sediment and trash from pipe. You
can use a high pressure hose, vacuum suction,
or other appropriate cleaning method.
Contact the design engineer for infomation on
appropriate cleaning methods for your type of
drainage system.
pipe is rusted;
protected coating
is damaged
corroded pipe Replace or repair pipe to original design
specifications.
dent in pipe has reduced the pipe
diameter by 20%;
water flow is impeded;
pipe is broken
defective pipe Replace or repair pipe to original design
specifications.
water is leaking from pipe cracked pipe Replace or repair pipe to original design
specifications.
Storm Water System Operation and Maintenance Handbook 41
Underground Detention System Inspection and Maintenance Checklist
Facility:
Location/Address:
Date: Time: Weather Conditions: Date of Last Inspection:
Inspector: Title:
Rain in Last 48 Hours □ Yes □ No If yes, list amount and timing:
Pretreatment: □ vegetated filter strip □ swale □ turf grass □ forebay □ other, specify: □ none
Site Plan or As-Built Plan Available: □ Yes □ No
*Do not enter underground detention chambers to inspect system unless Occupational Safety & Health Administration (OSHA)
regulations for confined space entry are followed.
*Follow inspection and maintenance instructions and schedules provided by system manufacturer and installer.
* Properly dispose of all wastes.
Inspection Item Comment Action
Needed
1. PRETREATMENT
Sediment has accumulated. □Yes □No □N/A □Yes □No
Trash and debris have accumulated. □Yes □No □N/A □Yes □No
2. INLETS
Inlets are in poor structural condition. □Yes □No □N/A □Yes □No
Sediment, trash, or debris have
accumulated and/or is blocking the inlets. □Yes □No □N/A □Yes □No
3. CHAMBERS
Sediment accumulation threshold has
been reached. □Yes □No □N/A □Yes □No
Trash and debris have accumulated in
chambers. □Yes □No □N/A □Yes □No
4. OTHER SYSTEM COMPONENTS
Structural deterioration is evident. □Yes □No □N/A □Yes □No
5. OUTLETS
Outlets in poor structural condition. □Yes □No □N/A □Yes □No
Sediment, trash or debris are blocking
outlets. □Yes □No □N/A □Yes □No
Erosion is occurring around outlets. □Yes □No □N/A □Yes □No
6. OTHER
Evidence of ponding water on area
draining to system. □Yes □No □N/A □Yes □No
Evidence that water is not being
conveyed through the system. □Yes □No □N/A □Yes □No
Additional Notes
Wet weather inspection needed □ Yes □ No