A Stormwater Pollution Prevention Plan (SWPPP) Required for Major Land Disturbance Permits All applications for Major Land Disturbance Permits shall be accompanied by a Stormwater Pollution Prevention Plan (SWPPP) prepared for the specific site by or under the direction of a Qualified Professional as directed by the County. Only the components and elements of the SWPPP that do not require engineering may be prepared by a Qualified Professional other than a Missouri Licensed Professional Engineer. The site construction plans shall contain a statement that any land clearing, construction, or development involving the movement of earth shall be in accordance with the SWPPP, and the applicant shall assume and acknowledge responsibility for compliance with the Code and the approved SWPPP at the site of the permitted activity. The SWPPP assumes St. Louis County land disturbance criteria are applied to the project. If different criteria are proposed, permission from the County must be obtained. The SWPPP shall clearly state land disturbance criteria to be used. If the SWPPP project crosses municipal boundaries, land disturbance criteria arrangements between boundary authorities need to be stated in the SWPPP. When a County linear road project is located in a municipality(s), in whole or in part, the County land disturbance code shall be followed. A land disturbance permit from the municipality(s) shall not be required. The municipality(s) will be notified of the proposed construction and will be given opportunity to review the plans before the start of construction. •
The contractor / permit holder shall insure that what is shown on the SWPPP matches what is in the field.
•
The contractor / permit holder shall insure that utility companies, subcontractors, employees, etc., are aware of and follow all SWPPP requirements.
•
The SWPPP shall require existing vegetation and natural buffers around surface waters to be preserved where practical and / or as required.
•
The SWPPP shall include BMPs that control volume and velocity of stormwater where practical and / or as required.
•
The time period for disturbed areas to be without vegetative cover is to be minimized to the maximum extent practicable.
•
Minimize sediment discharge from the site. The design, installation and maintenance of erosion and sediment controls must address factors such as the amount, frequency, intensity, and duration of precipitation, the nature of resulting stormwater runoff, and soil characteristics, including the range of soil particle size expected to be present on the site.
•
Minimize soil compaction and unless infeasible, preserve topsoil.
Page 1 of 5