National Wetland Condition Assessment 2021

Biological Indicators

Less than half
of wetland
area was rated
good, based
on an analysis
of plant
communities

24% of

wetland area
rated poor or
very poor due
to the
abundance of
nonnative plant
species



Good
48%

Fair
27%

Poor
13%

Very
Poor
11%

Physical Alterations

Chemical Indicators

17% of
wetland area
was rated
poor for total
nitrogen in
water*

24% of
wetland area
was rated
poor for
total

phosphorus
in water*

vvEPA

United States
Environmental Protection
Agency

Access the NWCA web report

*40% of wetland area was not assessed due to
insufficient surface water

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