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− | :<font size= | + | :<font size=1>1. Special consideration must be given to avoid altering these wetland types. Inundation must be avoided. Water chemistry changes due to alteration by stormwater impacts can also cause adverse impacts. Note: All scientific and natural areas and pristine wetlands should be considered in this category regardless of wetland type. |
:2a, 2b, 2c. Can tolerate inundation from 6 inches to 12 inches for short periods of time. May be completely dry in drought or late summer conditions. | :2a, 2b, 2c. Can tolerate inundation from 6 inches to 12 inches for short periods of time. May be completely dry in drought or late summer conditions. | ||
:2d. Can tolerate +12” inundation, but adversely impacted by sediment and/or nutrient loading and pro- longed high water levels. | :2d. Can tolerate +12” inundation, but adversely impacted by sediment and/or nutrient loading and pro- longed high water levels. | ||
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:4. These wetlands are usually so degraded that input of urban stormwater may not have adverse impacts. | :4. These wetlands are usually so degraded that input of urban stormwater may not have adverse impacts. | ||
− | + | Notes: There will always be exceptions to the general categories listed above. Use best professional judgment. Pristine wetlands are those that show little disturbance from human activity.</font size> | |
− | There will always be exceptions to the general categories listed above. Use best professional judgment. Pristine wetlands are those that show little disturbance from human activity.</font size |
Susceptibility of wetland types to degradation by stormwater input
Link to this table
Susceptible | Non-Susceptible | ||
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Highly Susceptible Wetland Types 1 | Moderately Susceptible Wetland Types 2 | Slightly Susceptible Wetland Types 3 | Least Susceptible Wetland Types 4 |
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Notes: There will always be exceptions to the general categories listed above. Use best professional judgment. Pristine wetlands are those that show little disturbance from human activity.