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Stormwater Control & Design

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Presentation on theme: "Stormwater Control & Design"— Presentation transcript:

1 Stormwater Control & Design
INSPECTION SERVICES PROFESSIONAL By Ken Barber, CPESC

2 Certified Professional in Erosion and Sediment Control
Definition A Certified Professional in Erosion and Sediment Control has educational training, demonstrated expertise, and experience in controlling erosion and sedimentation and that meet qualification standards.

3 Eligibility Requirements
Earn a BS degree or higher plus three (3) years of professional level experience in the soil erosion and sediment control profession - college transcripts are required. Pass Written Exam

4 Stormwater Control Background Application

5 Water Quality Act Passed in 1987 Amended the Clean Water Act
Federal Regulation of Pollutant Discharge during Runoff Events

6 National Pollutant Discharge Elimination System (NPDES)
Phase I Stormwater Regulations were Published by EPA in 1990 Mandated that states set a system for regulation by 1994 The New York State Department of Environmental Conservation is local NPDES permitting authority.

7 State Pollutant Discharge Elimination System (SPDES)
Published Two Permits in 1993 One for Industrial Site Runoff One for Construction Site Runoff for sites of 5+ Acres Permits Regulated the manner in which Stormwater can leave a site

8 Phase II Regulations Established in 1999 by the EPA
Effective as of March 10, 2003 Lowered the Threshold to One Acre of Disturbance Regulations published in New York in SPDES General Permit GP-02-01 Effective in January of 2003

9 Project Evaluation:

10 Stormwater Pollution Prevention Plan (SWPPP)
Erosion and Sediment Control During Construction Water Quality Control Water Quantity Control Maintenance, during and after

11 Water Quality & Quantity Design
Maintain Pre-Development Conditions The design Manual contains the state’s technical standards for sizing of the stormwater controls and performance criteria for practices that are applied in post-construction Phase. The update process undertaken at this time is based on responses to public review of the permit, which revealed a need to make some minor modifications. These comments are in line with improvements we have found necessary in the past year and a half of supporting the document. Updates include some clarification of technical details and references, an update of chapter 3, and correction of typographical errors. Changes anticipated at this time are improvements that do not alter design criteria or performance criteria. The New York State Stormwater Management Design Manual (the Design Manual) includes sizing criteria to meet water quality, channel protection, and flood control goals, a list of practices that can be used to treat stormwater and specific design criteria for these practices. It also includes selection matrices that help a designer select the best practice for a site, and step-by-step design examples.

12 The “Blue Book” www.dec.state.ny.us
NY Guidelines for Urban Erosion and Sediment Control that sets the standards for practices which are typically installed during construction and may also be used for E&SC objective after construction is finalized. The construction permit refers to this document as NY standards and specifications for E&SC. The current version is as valid as it has ever been and as long as the new release is not available, applicants should continue using the 1997 release of this document. The New York Guidance for Urban Erosion and Sediment Control includes standards and specifications for erosion and sediment control measures commonly used at construction sites. Both vegetative and structural measures (permanent and temporary) are included in this manual. It also contains information calculating storm-water runoff and erosion rates as well as a sample soil erosion and sediment control ordinance.

13 Responsibility of the Design Professional
Engineers typically handle SPDES permitting Must educate the Operator and Contractors as to their responsibilities Both are Mandated to sign SWPPP

14 GP-02-01 Violations Surface Run-off Turbid Discharge
Adjacent Roadway Contamination Dust Pollution

15 Primary Means of Education
Detailing Inspection

16 Detailing:

17 Limited Effectiveness

18 Roadway Contamination

19 Proper Installation Adjacent To Roadway

20 Erosion Control Matting

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22 Proper Construction & Maintenance Prevent Contamination

23 Lack of Maintenance Creates Work

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29 Inspection GP Mandates site be inspected by “qualified professional” Every 7 calendar days After every 0.5” rainfall in a 24 hour period

30 Inspection Reporting Reports & Sketches generated for each inspection
Monthly Summaries are posted for public viewing Quarterly Summaries are also posted All made available to NYSDEC upon request

31 Inspection Reports

32 Detailed Sketches

33 Work as a Team Inspections are an excellent opportunity to plan with the Contractor Contractor may have methods or ideas that are new to you Remember: The goal is containment

34 Growing Pains Non-Uniform Design Non-Uniform Enforcement

35 Questions? INSPECTION SERVICES PROFESSIONAL


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