CWD CWD Atypical Situations & Problem Wetlands 1

Question 1

What is an 'atypical situation' in wetland delineation under the 1987 Corps Wetland Delineation Manual?

Accepted Answer

A situation where wetland indicators are absent due to recent human disturbance or natural events

Answer

Atypical situations occur when one or more wetland indicators are absent due to human activities or natural events, requiring special delineation procedures.

Question 2

Which of the following is an example of an atypical situation requiring special delineation procedures?

Accepted Answer

A recently farmed wetland where vegetation was removed by cultivation

Answer

Recently farmed areas may lack visible wetland vegetation indicators due to cultivation, requiring special assessment procedures under the 1987 Manual.

Question 3

What term applies to sites that show no wetland vegetation due to recent disturbance but still exhibit hydric soils and wetland hydrology?

Accepted Answer

Atypical situation wetlands

Answer

Sites lacking one or more wetland indicators due to recent disturbance are classified as atypical situations requiring special delineation procedures under the 1987 Manual.

Question 4

Under the 1987 Manual, when may a delineator use problematic hydrophytic vegetation indicators?

Accepted Answer

When vegetation alone cannot confirm wetland status due to transitional or stressed conditions

Answer

Problematic vegetation indicators are applied when normal vegetation assessment is inconclusive, such as in drought conditions or transitional zones near the wetland boundary.

Question 5

What field evidence is most useful when vegetation has been removed in a potential atypical situation?

Accepted Answer

Hydric soil indicators and water table measurements

Answer

When vegetation is absent, hydric soil indicators and direct water table measurements become the primary tools for confirming wetland status.

(CWD) Certified Wetland Delineator Practice Test

(CWD) Certified Wetland Delineator Practice Test

CWD CWD Atypical Situations & Problem Wetlands 1