HomeMy WebLinkAboutFile Documents.430 W Hallam St.0291.2017 (111).ARBKOperation and Maintenance
Inlets and Piping
The piping must be maintained periodically to ensure proper operation.Minimum inspection and
maintenance requirements include the following:
●During the first year draw down should be checked for every event exceeding 0.25”of
precipitation to ensure no significant backups are occurring.
●Piping systems and sumps should be checked during and after storms routinely.
●After the first year,the system should be cleaned out at least once a year and more if the first-year
inspection proves more maintenance is required.
●More frequent cleaning reduces the amount of debris entering the system and reduces the need
for more intense maintenance.
●Clean the inside of any perforated pipes with a pipe cleaner accessed through cleanouts.This
should be done yearly,or as necessary if the system is not infiltrating properly or if the system has
become contaminated.
●Ensure heat tape is functioning before colder months to prevent damage to piping.
If the storm system is not maintained properly,replacement of parts or of the entire system may be
necessary.
Trench Drains and Slot Drains
Trench drains must be regularly inspected and maintained to prevent clogging and debris from
travelling further into the system.Routinely keep drain grates and surrounding patios clean and free of
leaves,dirt,and other debris.This will prevent clogging and damage to the storm infrastructure.
Inspect drain sumps quarterly and after every storm exceeding 0.5 inches,remove excess sediment and
debris buildup from the catch basin.Inspect system for damage to the concrete and the grate.Inspect
all grouted seams and cracks.If cracks are smaller than ½”,record information and continue inspection
regularly.If cracks are larger than ½”,regrout and repair to prevent further damage.If grate is
damaged,repair or replace as necessary.
Pervious Paver Area
As per section 8.5.3.1 of the URMP,the following schedule will be undertaken by the owners of the
property to achieve long term performance of the BMP’s.
The perforated pipes should be cleaned and flushed yearly using the cleanouts on either end of the pipe.
Do not use soap or chemicals to clean the drain.Inspect annually during a storm event to insure
performance of drainage.If the drain has clogged outside of the drain pipe within the gravel bed,further
maintenance or replacement of the gravel bed may be required.To access the gravel bed,the pavers can
be lifted,where the sand,filter fabric,and gravel detention bed can be repaired as necessary.The pavers
can be maintained similar to the recommended pervious paver table 8.8 above,following the schedule
as per section 8.5.3.1 of the URMP.
Screened Rock Bed
The screened rock bed beneath and piping must be maintained periodically and inspected to ensure
proper operation.A maintenance plan shall be submitted to the City describing the maintenance
schedule that will be undertaken by the owners of the new residence or building.Minimum inspection
and maintenance requirements include the following:
-During the first year draw down should be checked for every event over 0.25”of
precipitation to ensure no significant backups are occurring.
-The maximum drain down time is 24 hours.
-The fabric surrounding the bed will be the first component to clog.If the fabric becomes
clogged replacement will be needed.
-Piping systems and sumps should be checked during and after storms routinely.
-Clean out and drainage basins and provide access for hoses and vacuum equipment.
-After the first year the system should be cleaned out at least once a year and more if the
first-year inspections prove more maintenance is required.
-More frequent cleaning reduces the amount of debris entering the system and reduces the
need for more intense maintenance.
-Remove debris from the gravel bed routinely.If the gravel has been contaminated by soil
and sand,clean or replace gravel as necessary.Gravel will possibly have to be replaced
every 5-10 years for proper perforation into the lawn.
-Clean the inside of the perforated pipe with a 6”or 12”pipe cleaner accessed through
cleanouts.This should be done yearly,or as necessary if the system is not infiltrating
properly or if the system has become contaminated.
-Ensure heat tape is functioning before colder months to prevent damage to piping.
-If the storm system is not maintained properly,replacement of parts or of the entire system
may be necessary.