HomeMy WebLinkAboutMULBERRY CONNECTION - FDP200030 - - SUPPORTING DOCUMENTATION (2)Vault ID
Total Required
WQ Volume (cf)
Flow, WQ
(cfs)i Chamber Type
Chamber Release
Ratea (cfs)
Chamber
Volumeb (cf)
Installed Chamber w/
Aggregatec (cf)
Minimum No. of
Chambersd
Total Release
Ratee (cfs)
Required Storage Volume by
FAA Method (cf)j
Minimum No. of
Chambersf
Storage Provided within the
Chambersg (cf)
Total Installed System
Volumeh (cf)
1 4071 3.8 SC-740 0.023586 45.9 74.9 55.00 1.297 3590 78.21 3626.10 5917.10
a. Release rate per chamber, limited by flow through geotextile with accumulated sediment.
b. Volume within chamber only, not accounting for void spaces in surrounding aggregate.
c. Volume includes chamber and void spaces (40%) in surrounding aggregate, per chamber unit.
d. Number of chambers required to provide full WQCV within total installed system, including aggregate rounded up to nearest whole number
e. Release rate per chamber times number of chambers.
f. Number of chambers required to provide required FAA storage volume stored within the chamber only (no aggregate storage).
g. Volume provided in chambers only (no aggregate storage). This number must meet or exceed the required FAA storage volume.
h. System volume includes total number of chambers, plus surrounding aggregate. This number must meet or exceed the required WQCV.
i. Assumed 1/2 of the 2-year storm event to calculate water quality flow.
j. Assumed the 2-year storm event for intesity values in calculating storage volume by FAA method.
Chamber Configuration Summary