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KYR10 Requirements KYR10 Requirements

Addendum to Phase II Permit DetailsAddendum to Phase II Permit Details

KYR10 Permit RequirementsKYR10 Permit Requirements

Stormwater Pollution Prevention Plan (SWPPP)

Minimize Size and Duration of Disturbance Stabilization Buffer Zones


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


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


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


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


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

KYR10 Permit RequirementKYR10 Permit RequirementSWPP 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


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

KYR10 Permit RequirementsKYR10 Permit RequirementsStabilization 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 StabilizationWithin 14 days of the date of temporary cessation

KYR10 RequirementsKYR10 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

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