SW6191001_Supplement-EZ Form_20200928

DRAINAGE AREAS
............................................................................................................................................................................................................................................................................
1 Is this a hi h density rgject? Yes
2 If so number of drainage areas/SCMs 1
Is all/part of this project subject to previous rule
3 versions? No
F EMS I..ED
DRAINAGE AREA INFORMATION
Entire Site 1
4
Type of SCM
Sand Filter
5
Total BUA in project (sq ft) 1
72000 sf„
New BUA on subdivided lots (subject to
6
permitting) „(sq ft)
New BUA outside of subdivided lots (subject to
7
ermitting) (sp
72000 sf
8
Offsite - total areas ft
9
Offsite BUA (sq ft)
10
Breakdown of new BUA outside subdivided lots:
Parking (sq ft)
24600 sf
Sidewalk (sq ft)....
Roof (sq 1)
Roadway (sq 1)
47400 sf
Future.(sq ft) ....
Other, please specify in the comment box
below N ft
45650 sf
New infiltrating permeable pavement on
11
subdivided lots (sq ft)
New infiltrating permeable pavement outside of
12
subdivided lots s ft
Exisitng BUA that will remain (not subject to
13
permitting) „(sq ft)
14
Existing BUA that is already permitted (sq ft)
15
Existing BUA that will be removed (sq ft)
16
Percent BUA
75%
17
Design storm (inches)
1 in
18
Design volume of SCM (cu ft)
4344 cf
Simple Method for
19
Calculation method for design volume
Runoff Volume
ADDITIONAL INFORMATION
Please use this space to provide any additional information about the
p p Y
20 drainage area(s):
All parking aisle will be covered with gravel

2017 rules
Design storm (inch
.......................................................................
.995....ru rules ...........................
H 2006-246
2008 rules
rules ...........................
Breakdown of new
Parking„ (sq ft)
Sidewalk (sq ft)
Roof (sq ft)
Future (sq ft)
Other, please specify in the comment box
below...(sq..ft).....................................................................................................................
New infiltrating permeable pavement on
New infiltrating permeable pavement outside of
14 subdivided lots (sa ft)
remain (not su
Existing BUA that will be removed (sq
Percent BUA
Design volume of SCM (cu ft)
Calculation method for desian volume
Please use this space to provide any additional
21 information about the drainage area(s):