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Jefferson County Department of Health Storm Water Division

Jefferson County Department of Health Storm Water Division. Erosion And Sedimentation Control Certification Workshop. PURPOSE.

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Jefferson County Department of Health Storm Water Division

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  1. Jefferson County Department of Health Storm Water Division Erosion And Sedimentation Control Certification Workshop

  2. PURPOSE • The Purpose Of The Erosion And Sedimentation Control Ordinance Is To “…Reduce Erosion And Sedimentation Problems ….” [It is Your Responsibility to Keep Sedimentation From Your Site, On Your Site which includes not allowing sedimentation onto adjacent property, storm drains, ditches, creeks, Etc.)

  3. Erosion and Sedimentation Control Ordinance Adopted May 25, 1999 Went Into Effect October 1, 1999

  4. WHO NEEDS A LAND DISTURBING PERMIT ? Any Land Disturbing Activity That Involves Creating Areas Of Bare Earth (Clearing, Grading, Cut, or Fill Activities). • Sites having a disturbed area of less than 1 acre should be permitted through the local municipality. • Construction sites having a disturbed area of 1 acre or greater should have an ADEM Permit which should be posted at all times. JCDH will still be monitoring these sites. • (ADEM’s Birmingham Field Office phone number is 942-6168)

  5. JCDH Requirements for ADEM Permitted Sites • Construction sites permitted through ADEM are required to have an acknowledgement letter from the City prior to commencement. The City will need: 1) Notice of Registration (NOR) for the site 2) ADEM’s NOR Receipt (showing the assigned ALR number) 3) Set of the BMP (Best Management Practices) plan for the site This site will be monitored by JCDH or whichever municipality the site falls under.

  6. Proper Installation of BMP’s Is Essential to Keeping our Waterways Clean

  7. Single Family Residential Sites • Sediment Control is important everywhere because sediment may leave the property 1) Silt fencing trenched in and maintained 2) Hay bales trenched in and staked (these can be used but are no longer accepted by ADEM) 3) Construction Exit Pad in working order 4) Sod/grassing as soon as possible 5) Immediate clean up if/when required 6) Trash Receptacle 7) All other BMPs in good and working order

  8. Silt Fences • Principal mode of action is to slow and pond the water and allow soil particles to settle • Sediment shall be cleaned from behind the fence when it reaches 50% of the designed impoundment height (9 inch (0.2 m)). • Should only be used for one season, not designed for prolonged use.

  9. Silt Fence Typical Installation

  10. Silt Fence Slope Installation

  11. Reasons for Silt Fence Failures • Improper placement on the site; • Allowing excessive drainage area to the silt fence structure; • Shallow trenches with little or no soil compaction; • Inadequate attachment to posts; • Failure to maintain the silt fence after installation; • Installing silt fence along property boundaries producing "concentrated" runoff.

  12. Placement of Silt Fences • Sheet and rill erosion would occur; • Protection of adjacent property or areas beyond the limits of grading is needed (perimeter control); • The size of the drainage area is no more than 1/4 acre per 100 linear feet of silt fence; • The maximum flow path length above the barrier is 100 feet (30.5 m); • The maximum slope gradient above the barrier is 2:1; • Small swales are carrying silt, the slope is less than 2%, and the drainage area is less than 2 acres (0.8 ha); • No practice other than a silt fence is feasible.

  13. Improper Silt Fence Installations

  14. Silt Fence Should Be Properly Trenched In

  15. Construction Exit Pads

  16. Construction Exit Pads • The construction exit pad should be located to provide for maximum use by construction vehicles. • If soil can not support gravel, a layer of geotextile may be required to keep rock from sinking into the soil • If constructed in a sensitive area a washing pad may be required.

  17. Construction Exit Pad

  18. Improper Construction of Exit Pad

  19. The Construction Exit Pad Should Be Properly Installed

  20. Inlet Protection

  21. Improper Inlet Protection • Improper inlet protection can lead to expensive storm water pipe clean outs as well as a fine for any developer involved

  22. Type 1: Inlet Protection • Type 1 Inlet protection is used in mostly non- traffic areas.

  23. Type 2: Inlet Protection • This can be any variance of drainage logs, sand bags, or other approvable erosion control devices used on curb or sag inlets

  24. Drop Inlet Protection

  25. Trash Disposal A Proper Trash Receptacle Should Be On Site Once Work has begun. (container with sides, top, & bottom)

  26. What if a Site is in Violation?

  27. What is wrong with this site?

  28. Notices Of Violation • First An Inspector May Give You Verbal Notification That A Violation Exists At Your Site • Then the inspector Will Give You A Specific Period Of Time To Correct The Violation (Normally 24 to 48 Hours) • A call should then be made to the inspector to re-inspect the site.

  29. Formal Notice Of Violation • The final step if the site continues to be out of compliance will be in the form of a Formal, Written Notice Of Violation (NOV). The NOV will then be sent to the owner of the violation by mail. • You Have A Specified Period Of Time, Usually 3 to 5 Days to Correct The Violation(s) and 10 days to respond IN WRITING

  30. JCDH Certification Revocation • IF YOU RECEIVE A WRITTEN NOTICE OF VIOLATION, IT WILL CONTAIN A REVOCATION OF YOUR JCDH CERTIFICATION ( and a Homebuilder’s QCI will not be honored).

  31. Continual Violation • Any violation that is not corrected in a timely manner will be turned Over To The JCDH or Municipal Attorney, at which point legal action may be taken (which can result in fines).

  32. What Are Some Improvements That Could be Made to These Sites?

  33. Final Inspection

  34. Are You Ready for a Final Inspection? • 2 Questions to Ask Yourself. • Is my site stabilized? • Did I give the inspector 5-7 business days to do an inspection? (This is a minimum and sometimes it is better to give more days in case the site is not totally in compliance)

  35. Final Inspections • Call the office to set up a final inspection • Have your permit number ready to give to the clerk when you call • An inspector will call you to set up a time for the final inspection • The Ordinance allows 5-7 Business DAYS from the day you call to perform the final inspection (Usually 3 days or less)

  36. Are These Sites Ready for a Final Inspection?

  37. If you don’t call for a final inspection you will still be “responsible” for the site. If the owner of the property does additional land disturbing after you’ve finished and left the site, JCDH may not know it – and you are still held responsible (your JCDH certification).

  38. Conditional Finals • Primarily used In Trussville • Requires that funds be formally put into escrow with an attorney (usually the closing attorney).

  39. Any Questions? www.jcdh.org (205) 930-1230

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