CRITICAL AREAS AND NATURAL RESOURCE LANDS PROTECTION
Table 1. Wetland Buffer Requirements if Table 2 Is Implemented and Corridor Provided | |||
|---|---|---|---|
Wetland Category | Buffer width (in feet) based on habitat score | ||
3 – 5 | 6 – 7 | 8 – 9 | |
Category I: Based on Total Score | 75 | 110 | 225 |
Category I: Bogs and Wetlands of High Conservation Value | 190 | 225 | |
Category I: Interdunal | 225 (buffer width not based on habitat scores) | ||
Category I: Forested | 75 | 110 | 225 |
Category I: Estuarine and Coastal Lagoons | 150 (buffer width not based on habitat scores) | ||
Category II: Based on Score | 75 | 110 | 225 |
Category II: Interdunal Wetlands | 110 (buffer width not based on habitat scores) | ||
Category II: Estuarine and Coastal Lagoons | 110 (buffer width not based on habitat scores) | ||
Category III (all) | 60 | 110 | 225 |
Category IV (all) | 40 | ||
Table 2. Required Measures to Minimize Impacts to Wetlands | |
|---|---|
Disturbance | Required Measures to Minimize Impacts |
Lights | • Direct lights away from wetland |
Noise | • Locate activity that generates noise away from wetland • If warranted, enhance existing buffer with native vegetation plantings adjacent to noise source • For activities that generate relatively continuous, potentially disruptive noise, such as certain heavy industry or mining, establish an additional 10-foot heavily vegetated buffer strip immediately adjacent to the outer wetland buffer |
Toxic runoff | • Route all new, untreated runoff away from wetland while ensuring wetland is not dewatered • Establish covenants limiting use of pesticides within 150 feet of wetland • Apply integrated pest management |
Stormwater runoff | • Retrofit stormwater detention and treatment for roads and existing adjacent development • Prevent channelized flow from lawns that directly enters the buffer • Use low intensity development techniques (for more information refer to the drainage ordinance and manual) |
Change in water regime | • Infiltrate or treat, detain, and disperse into buffer new runoff from impervious surfaces and new lawns |
Pets and human disturbance | • Use privacy fencing or plant dense vegetation to delineate buffer edge and to discourage disturbance using vegetation appropriate for the ecoregion • Place wetland and its buffer in a separate tract or protect with a conservation easement |
Dust | • Use best management practices to control dust |
Table 3. Wetland Buffer Requirements if Table 2 Is Not Implemented or Corridor Not Provided | |||
|---|---|---|---|
Wetland Category | Buffer width (in feet) based on habitat score | ||
3 – 5 | 6 – 7 | 8 –9 | |
Category I: Based on Total Score | 100 | 150 | 300 |
Category I: Bogs and Wetlands of High Conservation Value | 250 | 300 | |
Category I: Interdunal | 300 (buffer width not based on habitat scores) | ||
Category I: Forested | 100 | 150 | 300 |
Category I: Estuarine and Coastal Lagoons | 200 (buffer width not based on habitat scores) | ||
Category II: Based on Score | 100 | 150 | 300 |
Category II: Interdunal Wetlands | 150 (buffer width not based on habitat scores) | ||
Category II: Estuarine and Coastal Lagoons | 150 (buffer width not based on habitat scores) | ||
Category III (all) | 80 | 150 | 300 |
Category IV (all) | 50 | ||
• Comparatively high fish and wildlife density. |
• Comparatively high fish and wildlife species diversity. |
• Important fish and wildlife breeding habitat. |
• Important fish and wildlife seasonal ranges. |
• Important fish and wildlife movement corridors. |
• Limited availability. |
• High vulnerability to habitat alteration. |
• Unique or dependent species. |