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Erosion & Sedimentation Control Workshop

Date post: 10-Feb-2016
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Cameron County Conservation District. Erosion & Sedimentation Control Workshop. Chapter 102 Rules and Regulations. Erosion is natural, so what’s the deal? Accelerated Erosion is not natural – man’s activities in moving earth increase natural erosion rates. - PowerPoint PPT Presentation
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Cameron County Conservation District
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Page 1: Erosion & Sedimentation Control Workshop

Cameron County Conservation District

Page 2: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations

Erosion is natural, so what’s the deal?

Accelerated Erosion is not natural – man’s activities in moving earth increase natural erosion rates.

Runoff from construction activities carry organic and inorganic materials into receiving streams.

Page 3: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations Pennsylvania Clean Streams Law Federal Clean Water Act Chapter 102 –Erosion Control National Pollutant Discharge

Elimination System (NPDES) Federal Environmental Protection

Agency (EPA) Court Decisions Pennsylvania Dept. of Environmental

Protection (PA DEP) Court Decisions

Page 4: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations Earthmoving (construction activities)

shall be conduct in such a way as to prevent accelerated erosion and resulting sedimentation.

A landowner, person or municipality engaged in earthmoving shall develop, implement and maintain erosion and sedimentation (E&S) control measures.

Page 5: Erosion & Sedimentation Control Workshop
Page 6: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations E&S measures shall be set forth

(illustrated or demonstrated) in an erosion and sedimentation control plan (E&S Plan).

Agricultural is not excluded from this regulation! Plowing and tilling is covered, but the demonstration or illustration is termed “conservation plan.”

Page 7: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations Any construction activity disturbing

5000-square feet requires a written plan.

Any c0nstruction activity (defined by EPA) for commercial, residential, or industrial development having a “point source discharge” is required to obtain a NPDES Permit for the Discharge of Stormwater Associated with Construction Activities.”

Page 8: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations Okay, what’s a “ point source discharge?”

Through the Federal Clean Water Act, EPA defines a point source a discernible, discreet discharge to a surface or non-surface water.

A surface water is any swale, ditch or channel, man-made or natural. And basically, a non-surface water is anything else.

Page 9: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations What goes into an E&S Plan:

- Topographic Features- Types, depths, slopes and extent of soils- Proposed earthmoving-Amount of runoff from upstream area and construction activity-Staging (squence) of construction activity-Permanent and temporary E&S Controls

Page 10: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations What goes into an E&S Plan:

- MAINTENANCE …..!!!!! E&S Controls are installed an

forgotten. Most approved E&S Plans perform

well, but lack of maintenance ensures problems for contractor, owner and compliance agencies.

Page 11: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations What are E&S Controls?

- Limiting exposed earth - Diverting clean water around work area - Control velocity in channels (1.5-feet per

second) - Stabilization of slopes, channels, ditches

or other disturbed areas as soon as possible. - Temporary seeding and mulching - Collecting and treating construction runoff - Removal of solids before discharge

Page 12: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and RegulationsC0ntrol Facilities:

- Diversion Terraces Temporary terraces = 1.6 CFSPermanent terraces = 2.75 CFS

- ChannelsVelocity = 1.5 FSPRock-lined or vegetation

Page 13: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations Sedimentation Basins:

- 7,000-cubic feet per acre of project- sediment storage of 5000-cubic per acre- Outlets designed to pass 2-cubic feet per acre- basin must discharge to natural waterway- basin must be structurally sound

Page 14: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations How does Cameron County Conservation

District fit into this? Chapter 102, Section 102.41

(Administration):

- PA DEP may delegate the administration and enforcement of this Chapter to counties or other unit of local government, provided the unit is approved and qualified by the Department

Page 15: Erosion & Sedimentation Control Workshop

Chapter 102 Rules and Regulations Federally required NPDES Permits

are tied into Chapter 102. NPDES Permits are specifically

covered by Chapter 92 Rules and Regulations

Impetus for E&S Plans and Stormwater Management is Water Quality….!!!!


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