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Township of Londonderry, PA
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2024-03-12
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The Code
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Chapter 125 Stormwater Management
The Code
Ch 1
General Provisions
Ch 18
Code Enforcement
Ch 22
Driveways
Ch 35
Environmental Advisory Council
Ch 38
Erosion and Sediment Control
Ch 39
Fire Prevention and Fire Protection
Ch 72
Mobile Home Parks
Ch 84
Nuisances
Ch 89
Official Map
Ch 93
Peddling and Soliciting
Ch 96
Planning Commission
Ch 102
Rental Property
Ch 109
Salaries and Compensation
Ch 112
Sewage
Ch 117
Solid Waste
Ch 125
Stormwater Management
Ch 125 Art I
General Provisions
§ 125-101
Short title.
§ 125-102
Statement of findings.
§ 125-103
Purpose.
§ 125-104
Statutory authority.
§ 125-105
Applicability.
§ 125-106
Repealer.
§ 125-107
Severability.
§ 125-108
Compatibility with other requirements.
§ 125-109
Erroneous permit.
§ 125-110
Waivers.
Ch 125 Art II
Terminology
§ 125-201
Definitions; word usage.
Ch 125 Art III
Stormwater Management Standards
§ 125-301
General requirements.
§ 125-302
Exemptions and modified requirements.
§ 125-303
Water quality and runoff volume requirements.
§ 125-304
Infiltration requirements.
§ 125-305
Stream channel protection requirements.
§ 125-306
Rate controls.
§ 125-307
Calculation methodology.
§ 125-308
Other requirements.
§ 125-309
Riparian buffers.
§ 125-310
Permit requirements by other governmental entities.
§ 125-311
Stormwater management and conveyance design standards.
Ch 125 Art IV
Stormwater Management (SWM) Site Plan Requirements
§ 125-401
Plan requirements.
§ 125-402
Plan submission.
§ 125-403
Plan review.
§ 125-404
Modification of plans.
§ 125-405
Resubmission of disapproved SWM site plans.
§ 125-406
Authorization to construct; term of validity.
§ 125-407
Performance and inspection of regulated activity.
§ 125-408
As-built plans; completion certificate; final inspection.
Ch 125 Art V
Operation and Maintenance
§ 125-501
Responsibilities of developers and landowners.
§ 125-502
Operation and maintenance agreements.
§ 125-503
Financial security.
Ch 125 Art VI
Fees and Expenses
§ 125-601
Stormwater management site plan review and inspection fees established.
§ 125-602
Expenses covered by fees; review fees.
Ch 125 Art VII
Prohibitions
§ 125-701
Prohibited discharges and connections.
§ 125-702
Roof drains and sump pumps.
§ 125-703
Alteration of SWM BMPs.
Ch 125 Art VIII
Enforcement and Penalties
§ 125-801
Right of entry.
§ 125-802
Inspection.
§ 125-803
Enforcement.
§ 125-804
Suspension and revocation.
§ 125-805
Violations and penalties.
§ 125-806
Appeals.
Ch 125 Art IX
References
§ 125-901
References.
Ch 128
Streets and Sidewalks
Ch 130
Subdivision and Land Development
Ch 136
Taxation
Ch 145
Vegetation Control
Ch 151
Vehicles and Traffic
Ch 162
Water
Ch 170
Zoning
Disposition List
Ch DL
Disposition List
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Chapter 125
Stormwater Management
[HISTORY: Adopted by the Board of Supervisors of the Township of Londonderry
6-10-2014
by
Ord. No. 02-2014
; amended in its entirety
6-13-2023
by
Ord. No. 01-2023
. Subsequent amendments noted where applicable.]
ATTACHMENTS
Attachment 1 - Appendix A Simplified Approach to Stormwater Management for Small Projects
Attachment 2 - Appendix B Runoff Coefficients and Curve Numbers
Attachment 3 - Appendix C Operation and Maintenance Agreement
Attachment 4 - Appendix D Design Criteria for Wetland Replacement
Attachment 5 - Appendix E Conservation Design and Low Impact Development Site Design
Article I
General Provisions
chevron_right
§ 125-101
Short title.
chevron_right
§ 125-102
Statement of findings.
chevron_right
§ 125-103
Purpose.
chevron_right
§ 125-104
Statutory authority.
chevron_right
§ 125-105
Applicability.
chevron_right
§ 125-106
Repealer.
chevron_right
§ 125-107
Severability.
chevron_right
§ 125-108
Compatibility with other requirements.
chevron_right
§ 125-109
Erroneous permit.
chevron_right
§ 125-110
Waivers.
chevron_right
Article II
Terminology
chevron_right
§ 125-201
Definitions; word usage.
chevron_right
Article III
Stormwater Management Standards
chevron_right
§ 125-301
General requirements.
chevron_right
§ 125-302
Exemptions and modified requirements.
chevron_right
§ 125-303
Water quality and runoff volume requirements.
chevron_right
§ 125-304
Infiltration requirements.
chevron_right
§ 125-305
Stream channel protection requirements.
chevron_right
§ 125-306
Rate controls.
chevron_right
§ 125-307
Calculation methodology.
chevron_right
§ 125-308
Other requirements.
chevron_right
§ 125-309
Riparian buffers.
chevron_right
§ 125-310
Permit requirements by other governmental entities.
chevron_right
§ 125-311
Stormwater management and conveyance design standards.
chevron_right
Article IV
Stormwater Management (SWM) Site Plan Requirements
chevron_right
§ 125-401
Plan requirements.
chevron_right
§ 125-402
Plan submission.
chevron_right
§ 125-403
Plan review.
chevron_right
§ 125-404
Modification of plans.
chevron_right
§ 125-405
Resubmission of disapproved SWM site plans.
chevron_right
§ 125-406
Authorization to construct; term of validity.
chevron_right
§ 125-407
Performance and inspection of regulated activity.
chevron_right
§ 125-408
As-built plans; completion certificate; final inspection.
chevron_right
Article V
Operation and Maintenance
chevron_right
§ 125-501
Responsibilities of developers and landowners.
chevron_right
§ 125-502
Operation and maintenance agreements.
chevron_right
§ 125-503
Financial security.
chevron_right
Article VI
Fees and Expenses
chevron_right
§ 125-601
Stormwater management site plan review and inspection fees established.
chevron_right
§ 125-602
Expenses covered by fees; review fees.
chevron_right
Article VII
Prohibitions
chevron_right
§ 125-701
Prohibited discharges and connections.
chevron_right
§ 125-702
Roof drains and sump pumps.
chevron_right
§ 125-703
Alteration of SWM BMPs.
chevron_right
Article VIII
Enforcement and Penalties
chevron_right
§ 125-801
Right of entry.
chevron_right
§ 125-802
Inspection.
chevron_right
§ 125-803
Enforcement.
chevron_right
§ 125-804
Suspension and revocation.
chevron_right
§ 125-805
Violations and penalties.
chevron_right
§ 125-806
Appeals.
chevron_right
Article IX
References
chevron_right
§ 125-901
References.
chevron_right