Designated watercourses and riparian setbacks are established in the Village as follows:
(a) Stream Types. The following stream types shall be used to define appropriate stream buffers:
Table A: Stream Types
Stream Types | |
Stream Type | Stream Characteristics |
Type I | Drainage area of up to 32 acres |
Type II | Drainage area of greater than 32 acres up to 0.5 square miles |
Type III | Drainage area greater than 0.5 square miles up to 20 square miles |
Type IV | Drainage area greater than 20 square miles up to 300 square miles |
Type V | Drainage area greater than 300 square miles |
(b) Buffer Types and Allowed Activities. Any applicable buffer type boundaries shall be indicated on any plat or site plan files which includes an applicable stream corridor. The following buffer types shall
be used to regulate activities in any stream corridor buffers:
Table B: Buffer Types
Buffer Type | Buffer Characteristics |
Preserved buffer | An area that protects the physical and ecological integrity of the stream ecosystem. It is the most sensitive area of the stream corridor and includes the stream channel and the required setback from the ordinary high water mark. In order to protect natural functions of the corridor, this area should contain undisturbed natural vegetation. |
Managed buffer | An area that protects key components of the stream, provides distance, and transitions between up land development and preserved buffer. Activities in this area impact the function of the preserved buffer, as well as the stream corridor, and it begins immediately adjacent to the preserved buffer. In order to protect natural function of the corridor, this area should contain native vegetation and limited land disturbance. |
Limited development buffer | An area that prevents encroachment into the steam corridor by more intense and conventional development. Activities in this area impact the function of the stream corridor, and it begins immediately adjacent to the managed buffer. Limited development activity is allowed in this area, provided it is accessory to a use in one of the other buffer areas or involves site design practices that eliminate, minimize, or mitigate impacts of run-off into the stream corridor. |
(c) Required Buffer Area. The required buffer area shall be according to the following table with required and allowed modifications based upon the following sections and Table C.
Table C: Required Buffer Areas
Stream Type | Buffer Type | |||
Preserved Buffer | Managed Buffer | Limited Development Buffer | Total Combined Buffer Area | |
Type I | 30' | N/A | N/A | 30' both sides |
Type II | 30' | N/A | N/A | 30' both sides |
Type III | 30' | 30' | 50' | 50' both sides |
Type IV | 30' | 50' | 100' | 100' both sides |
Type V | 30' | 70' | 150' | 150' both sides |
* Buffer distance requirements measured horizontally from the edge of the ordinary high water mark. All preserved buffers shall also include the stream channel in addition to the specified setback from the ordinary high water mark.
(d) Additional Limitations.
(1) Water pollution hazards. In addition to the protection of the buffer areas and the underlying zoning ordinances, all streams protected by the stream corridor protection standards identified in Table D for water pollution hazards:
Table D: Water Pollution Hazard Setbacks
Water Pollution Hazard Setbacks | |
Hazard | Setback |
Water Pollution Hazard Setbacks | |
Hazard | Setback |
Storage or use of hazardous substances | 100 feet |
Above-ground or underground petroleum storage facilities or use of petroleum-based products | 100 feet |
Drain-fields from onsite sewage disposal and treatment systems (i.e. septic systems) | 100 feet |
Raised septic systems | 100 feet |
Solid waste landfills, recycling facilities, or junkyards | 100 feet |
Agricultural activities involving animal feed operations or storage | 100 feet |
Mining of natural resources | 100 feet |
(2) Stream crossings. Crossings of streams protected by these standards, by roads, driveways, storm sewers, sewer lines, water lines and utility lines shall be limited by the following:
A. One roadway crossing area, and associated utility crossing, limited to no wider than sixty feet for every 500 linear feet, and
B. All crossings shall be perpendicular to the stream and shall be designed to minimize and mitigate any disturbance in any buffer area.
(Ord. 2014-119. Passed 2-11-15; Ord. 2017-31. Passed 5-10-17.)