A. Notice of construction commencement. The applicant must notify the engineering department in advance before the commencement of construction in writing. (Note sample form letter). The staff of the engineering department shall conduct regular inspections of the stormwater management system construction. All inspections shall be documented in written reports that contain the following information:
1. The date and location of the inspection;
2. Whether construction is in compliance with the approved stormwater management plan;
3. Variations from the approved construction specifications;
4. Any violations that exist.
If any violations are found, the property owner shall be notified in writing of the nature of the violation and the required corrective actions. No added work shall proceed until any violations are corrected and all work previously completed has received approval by the Engineering Department.
B. As built plans. All applicants are required to submit "as built" plans for any stormwater management practices located on-site after final construction is completed. The plan must show the final design and specifications for all stormwater management facilities. These plans must be signed and sealed by a professional engineer. A final inspection by the Engineering Department is required before the release of any performance securities can occur.
C. Stabilization requirements. Any area of land from which the natural vegetative cover has either been partially or wholly cleared or removed by development activities shall be re-vegetated within ten days from the substantial completion of such clearing and construction. The following criteria shall apply to re-vegetation efforts:
1. Reseeding must be done with an annual or perennial cover crop accompanied by placement of straw mulch or its equivalent of sufficient coverage to control erosion until such time when the cover crop is established over ninety percent of the seeded area.
2. Replanting with native woody and herbaceous vegetation must be accompanied by placement of straw mulch or its equivalent of sufficient coverage to control erosion until the plantings are established and are capable of controlling erosion.
a. Any area of re-vegetation must exhibit survival of a minimum of seventy-five percent of the cover crop throughout the year immediately following re-vegetation. Re-vegetation must be repeated in successive years until the minimum seventy-five percent survival for one year is achieved.
b. In addition to the above requirements, a plan must be submitted with the final design describing the vegetative stabilization and management techniques to be used at a site after construction is completed. This plan must explain how the site will be stabilized after construction, who will be responsible for the maintenance of vegetation at the site and what practices will be employed to ensure that adequate vegetative cover is preserved. This plan must be prepared by a registered landscape architect or by the soil conservation district, and must be approved prior to receiving a permit.
(Ord. 08-29, 2008)