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Transcript

  • 1. KYR10 Requirements Addendum to Phase II Permit Details
  • 2. KYR10 Permit Requirements
    • Stormwater Pollution Prevention Plan (SWPPP)
    • Minimize Size and Duration of Disturbance
    • Stabilization
    • Buffer Zones
  • 3. KYR10 Permit Requirements
    • SWPP Plans
    • Permittee develop & implement prior to commencement of construction activities
    • Include erosion prevention measures, sediment control measures & site management practices to prevent discharge of pollutants and minimize impacts
    • Measures and practices selected shall be based on site specific conditions
    • Installed and maintain to effectively minimize discharges from storm events up to and including a 2-year, 24-hour event
  • 4. KYR10 Permit Requirements
    • SWPP Plans cont’d
    • Site Description
    • Site Map(s)
    • Description of other industrial activities
    • Documentation of Stormwater Controls
    • Maintenance of Stormwater Controls
    • Non-Stormwater Discharge Management
    • Inspections – Permittee Conducted
    • Maintaining an Update Plan
    • Signature, Plan Review & Making Plans Available
  • 5. KYR10 Permit Requirements
    • SWPP Plan – Site Map Requirements
    • Property Boundary (lots)
    • Anticipated Post Grading Drainage Patterns (slopes)
    • Areas of disturbance, fill and borrow areas
    • Locations of sediment control measures, erosion control measures, and other site management practices
    • Locations of surface waters, karst features, discharge points
    • Locations of equipment & material storage, wash out areas, waste management areas, and egress
  • 6. KYR10 Permit Requirements
    • SWPP Plans – Maintenance of Controls
    • Controls are to maintained in an effective operating condition
    • USEPA recommends sediment control devices be maintained at no more 1/3 capacity
    • Maintenance shall be conducted if practicable before the next storm event for controls or management practices that are failing or require maintenance
  • 7. KYR10 Permit Requirements
    • SWPP Plan – Permittee Inspections
    • Regular inspections
    • – Once every 7 days
    • – Once every 14 days and within 24 hours of any storm event of 0.5 inches or greater
    • Inspectors
    • – Knowledgeable & skilled in assessing site conditions &
    • effectiveness of measures & management practices
    • – Training in stormwater construction management KEPSC, CEPSC, CPSWQ, TNEPSC, CESSWI Or other similar training
    • – Prepare & retain reports on all inspections
  • 8. KYR10 Permit Requirement
    • SWPP Plan- Signature, Plan Review & Making Plans Available
    • Signed & certified in accordance with 401 KAR 5:065, Section 1(11)
    • Current copy shall be readily available from date of project initiation to date of Notice of termination.
    • Make available upon request to federal, state and local agencies involved in regulating stormwater discharges
  • 9. KYR10 Permit Requirements
    • Minimum Size & Duration of Disturbance
    • At all times minimize disturbance and period of time the disturbed area is exposed without stabilization practices.
    • • Critical areas
    • – Within 25 feet of & on a positive slope toward a water of the Commonwealth
    • – Erosion prevention measures implemented on disturbed areas within 24 hours or as soon as practical after completion of disturbance/grading or following cessation of activities
  • 10. KYR10 Permit Requirements
    • Stabilization Requirements
    • Final Stabilization
    • – Permanently ceased initiate within 14 days of date of cessation
    • – Suspended for 180 days or more initiate as soon as practical but no later than 14 days after the 180th day of suspended activity
    • Temporary Stabilization
    • Within 14 days of the date of temporary cessation
  • 11. KYR10 Requirements
    • Buffer Zone Requirements
    • Buffer Zone required between edge of water body and any disturbance
    • High Quality & Impaired (Non-construction related) maintain a 25 foot buffer zone
    • Impaired (Sediment, no TMDL) maintain a 50 foot buffer zone
    • If cannot be maintained adequately protective alternative practices may be employed
    • SWPPP shall explain any alternate practice & how it is adequately protective