20170105083323.pdfRECEIVED
City of Edmonds`'
Site Classification Worksheet
DEVELOPMENT SERVICES
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The project's Site Classification will dictate the specific stormwater management
requirements applicable to your site. Completing this worksheet will help determine the amount of
(Category 1 or Category 2 , or a Minor Site. Please
�P <s� project falls into the classification of a Small Site
regulated ryim impervious surface and whether our ro � reference r er�rt~c tllc t.,lars^��rt ) l () 11). I"r ttr t s D and
Sys... 8-9 and Examples flip. I 1-12 tag with completion 00his wor°kshee;t.
1) Is Permeable Pavement' Proposed For Use on this Site? El Yes No
Refer to Stormwater Sri plem eni Chapter 5.1 JV
If YES, the subject area is to be considered impervious for initial site classification purposes. Include total
permeable pavement area in the calculation of Non -Regulated,, Replaced and/or New impervious surface
areas in the table below.
2) Determine the Amount and Type of Existing & Proposed Impervious Surface for the Site
Referto Stormwater Stinpleinent Chapter 2 and Fig, C
Line 1: Identify the Non -Regulated Impervious Surface Area.
Line 2: Identify the Replaced Impervious Surface Area, dividing the total between Exempt and Re ug lated; either or both
may be zero. Note: For project classification purposes, Replaced Impervious may only be considered exempt
under certain conditions. Refer to the Glossary and Figure D.
Line 3: Identify the New Impervious Surface Area for your project. All impervious areas created post -July 7, 1977 or
after the date of annexation into the City are regulated & should be included in this total unless they can be
categorized separately as a Replaced -Regulated area.
Line 4: Enter the sum of the total plus the total New impervious areas.
Line 5: Identify the total area currently mitigated by an existing city -approved stormwater management system.
Line 6: Enter the sum of the value in Line 4 less the value in Line 5 to identify the total Regulated area in which
stormwater controls have not yet been applied.
Line 7: Identify the total area proposed to be mitigated through the use of Low Impact Development Techniques.
Line 8: Identify the total area proposed to be mitigated through conventional Stormwater Management Techniques.
** Provide a copy of the following table on the drainage plan sheet for the proposed project **
Line Type Area (square feet) "
1 Non -Regulated a v
i%r; //% y//%/ i%i✓ii , Ii,ii; %p/o j1� Exempt Regulated
2. Replaced
3. New (Post 1977) -� -� + �.. 5 �
4. Total Regulated Impervious Area ��� l�j
trrrora rertrrrctt i "in excess rr 21N11'iu " T'
1 � i
S. Total Area Mitigated b Existing Stormwater
..,nt
g y g rmwater Management System(s) - l
6. Regulated Area Not Yet Mitigated 5�
m..............
7. Area Proposed to be Mitigated by Low Impact Development Techniques
p g g Conventional SWM Techniques'
..........- Area Proposed to be Mitigated through Con ................ � ............. ....
(e.g. porous asphalt, porous concrete, paver blocks, concrete open celled paving grids, or plastic lattices filled with turf or stone)
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f `)
City of Edmonds
Site Classification Worksheet
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3) Determine the Total Area of Land Disturbing Activity
Rehr to Stormwater Stawletnent Chapter 8
4) Determine the Quantity of Grading, Fill and/or ExcavationS._w.cy
5) Will the project convert 3/4 Acre or More of Native Vegetation to Lawn or ❑ yes KNo
Landscaued Area?
6) Identify the Watershed the Existing Site Runoff Discharges to
Reli�r to Stormwater Supplement Chapter 2.3
Based on Site Location and Watershed Map — Figure-C. Check, all that �
L Ll M11Y-1
A. XDirect Discharge B. ❑ Creek or Lake Basin
Edmonds Way Basin
❑ Puget Sound Basin
❑ Puget Sound Piped Basin
DETERMINE PROJECT CLASSIFICATION USING THE INFORMATION ABOVE
AND THE PROJECT CLASSIFICATION CHART (Figure B, pg 4)
Small Site - Category 1 ❑ Small Site - Category 2 XMinor Site
Stormwater Supplement Stormwater Supplement Stot nwaler Supplement
Chapter 5 Chapter 5 Chapter 6
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