[Ord. No. 3072, 10-18-2022]
Any development or redevelopment projects that disturb greater than or equal to one (1) acre, including projects less than one (1) acre that are part of a larger common plan of development or sale that would disturb one (1) acre or more.
[Ord. No. 3072, 10-18-2022]
As used in this Article the following terms shall have the meanings indicated:
DETENTION
Any structure which is designed to collect and store surface water for subsequent gradual discharge.
NATURAL WATERCOURSE
A channel that is formed through the natural flow of stormwater runoff influenced by area topography. The channel can carry a flow of water continuously or intermittently. Such a channel can include but not be limited to swales, streams, creeks, gullies, ravines, or rivers of varying depths and lengths.
ONE-HUNDRED-YEAR STORM
A rainstorm of varying duration and intensity having a one percent (1%) probability of recurring in any one (1) year.
POST-DEVELOPMENT
The conditions which are expected to exist, or do exist, after alteration resulting from human activity, of the natural topography, vegetation and rate, volume or direction of surface or subsurface flow.
PRE-DEVELOPMENT
Those conditions which exist at a site prior to any alteration of the natural topography, vegetation, flow rate, flow volume, or direction of surface or subsurface flow. In the case of a site where development has occurred in the past, the pre-development condition shall be the physical conditions of the site at the time of the application for the permit.
RETENTION
Any structure which is designed to collect and store surface water without releasing it except through infiltration or evaporation.
TWENTY-FIVE-YEAR STORM
A rainstorm of varying duration and intensity having a four percent (4%) probability of being equaled or exceeded in any given year.
[Ord. No. 3072, 10-18-2022]
A. 
Stormwater Retention. The first one (1) inch of rainfall is to be retained on the site using methods such as retention, infiltration, and green infrastructure. Runoff flowing to the site from upstream areas may be passed through the site without being retained.
B. 
The post-development peak discharge from the site must not exceed the pre-development peak discharge for the twenty-five-year and one-hundred-year frequency events.
C. 
Natural watercourses shall have an easement extending fifty (50) feet in either direction from the centerline of the channel. Permanent vegetation should be left intact within this easement.
D. 
Building gutter drainage systems may not be discharged directly into the City's enclosed stormwater collection system.
[Ord. No. 3072, 10-18-2022]
A. 
All stormwater BMPs shall be regularly maintained such that they continue to function as originally designed.
B. 
The person(s) responsible for ongoing maintenance should be clearly specified in the applicant's long-term maintenance plan.
C. 
Designs should include sufficient access for long-term maintenance of all stormwater structures.
[Ord. No. 3072, 10-18-2022]
A. 
The following shall be submitted to the City prior to construction in order to obtain an authorization to proceed with the project.
1. 
Stormwater design plans, including, at a minimum, proposed stormwater BMPs, impervious surfaces, stream locations, and FEMA flood plain boundaries.
2. 
Retention and detention volumes of all stormwater detention structures.
3. 
Peak runoff flow rates into and out of stormwater detention structures.
4. 
Peak discharge rates for pre-development and post-development conditions.
5. 
Hydrologic calculation used to design and analyze stormwater BMPs.
6. 
Long term maintenance plan, specifying, at a minimum, the person(s) responsible for long term maintenance of all stormwater BMPs, the method of maintaining the stormwater BMPs, and the frequency of maintenance.
[Ord. No. 3072, 10-18-2022]
A. 
All stormwater plans and calculations shall be submitted to the City along with the building permit application and must be approved prior to a building permit being issued.
B. 
Final construction approval shall occur with the final building inspection prior to occupancy.
[Ord. No. 3072, 10-18-2022]
A. 
Enforcement shall be performed by the Code Enforcement Officer. The Code Enforcement Officer, and other duly authorized employees bearing proper credentials and identification, shall be permitted to enter upon all properties for the purpose of inspection, observation, and measurement in accordance with the provisions of this Article.
B. 
Violation of the provisions of this Article or failure to comply with any of its requirements will result in a written notice to comply which will set forth the nature of the correction required and the time within which the correction shall be made.
C. 
Failure to comply with the written notice will result in a fine no less than one dollar ($1.00) and no greater than five hundred dollars ($500.00) for each offense. Each day such a violation continues shall be considered a separate offense.