For example:
| |
---|---|
If a property owner proposes a one-hundred-fifty-square-foot
shed after adoption of this chapter, that property owner would be
exempted from water quality and quantity requirements of this chapter
as noted in Table 106.1 of this chapter. If, at a later date, the
property owner proposes to construct a four-hundred-ninety-nine-square-foot
room in addition, the applicant would be required to comply with the
requirements for the Simplified Method for the full 649 square feet
of impervious cover created since adoption of this chapter. If an
additional seven-hundred-square-foot swimming pool/patio is proposed
later, the property owner would be required to implement the full
stormwater quantity and quality control submission requirements of
this chapter for the total 1,349 square feet of additional impervious
surface added to the original property since adoption of this chapter.
|
Table 106.1
Exemptions
| |||||||
---|---|---|---|---|---|---|---|
Article or Section
|
Type of Project
|
Proposed Impervious Surface
|
Earth Disturbance
| ||||
0-499 sq. ft.
|
500-999
sq. ft.
|
1,000+ sq. ft.
|
0-3,999
sq. ft. disturbance
|
4,000 sq. ft. to < 1 acre
|
> 1 acre
| ||
Article IV, SWM Site Plan Requirements
|
Development Re-development
|
Exempt
|
Not exempt Simplified approach
|
Not exempt
|
Exempt
|
Modified1
|
Not exempt
|
§ 105-304, Nonstructural project design
|
Development Re-development
|
Exempt
|
Not exempt Simplified approach
|
Not exempt
|
Exempt
|
Not exempt
|
Not exempt
|
§ 105-305, Infiltration volume requirements
|
Development Re-development
|
Exempt
|
Not exempt Simplified approach
|
Not exempt
|
Exempt
|
Exempt
|
Not exempt
|
§ 105-306, Water quality requirements
|
Development Re-development
|
Exempt
|
Not exempt Simplified approach
|
Not exempt
|
Modified2
|
Modified2
|
Not exempt
|
§ 105-307, Stream bank erosion requirements
|
Development Re-development
|
Exempt
|
Not exempt Simplified approach
|
Not exempt
|
Exempt
|
Exempt
|
Not exempt
|
§ 105-308, Stormwater peak rate control
|
Development Re-development
|
Exempt
|
Exempt
|
Not exempt
|
Exempt
|
Not exempt
|
Not exempt
|
Erosion and sediment pollution control requirements
|
Must comply with Title 25, Chapter 102, of the Pa. Code and other applicable state and municipal codes, including the Clean Streams Law
|
Not exempt
|
Legend:
| |
---|---|
•
|
"Proposed impervious surface" in Table 106.1 includes
new, additional, or replacement impervious surface/cover as part of
development or redevelopment.
|
•
|
Exempt - Exempt from required section provision only;
SWM site plan submission may still be required if other section provisions
are applicable.
|
•
|
Modified1 - A modified SWM site plan need only consist of items in §§ 105-402A(2) and (4); 105-402B(7), (8), (11) and (22); and 105-402D(1) and (3) and related supportive material needed to determine compliance with §§ 105-304 and 105-308. A modified SWM site plan is required that includes all elements of § 105-304 as applicable.
|
•
|
Modified2 - A modified SWM site plan need only consist of items and related material needed to determine compliance with § 105-306D.
|
•
|
Simplified approach - Must comply with provisions of
Appendix B of this chapter.
|
•
|
Redevelopment - See § 105-308 for alternate stormwater peak rate control criteria.
|