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Screen Flagged a Wetland? Get a Wetland Confirmation.

A scientist visits your site to confirm whether wetlands are actually present · A focused field check after a Screen · A definitive yes or no

$1,450* · On-Site Field Visit · Confirmation Memo *Varies with travel time
Three-Parameter Field Check N. Illinois & the Midwest Free, No-Obligation Quote
4.9/5 Google
Field-Verified by a Scientist
5,000+ Reports
Woman-Owned

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5,000+ Reports
4.9★ Google
Midwest Coverage
1987 USACE Manual

How It Works

1

Desktop Review

Before we mobilize, our scientist reviews the site — the area a Wetland Screen flagged, aerial imagery, soils and hydrology data, and any prior reports — so the field visit goes straight to the parts of the property that matter. You get a clear, flat-fee quote before anyone heads out.

2

Scientist Site Visit

A scientist walks the property and checks the three regulatory parameters in the field — hydrophytic (water-loving) vegetation, wetland hydrology, and hydric soils. All three must be present for an area to be a wetland; if any one is missing, it is not. This is a focused presence/absence check, not the full boundary mapping of a Delineation.

3

Confirmation Memo

We deliver a concise memo with the answer: wetlands are present on the property, or they are not — and, if present, whether a full Wetland Delineation is warranted to map the boundary. You get a definitive result you can act on before committing to the next, larger step.

Environmental scientist checking soils and hydrology in the field during a wetland confirmation site visit

The Four Wetland Steps

Wetland due diligence runs in sequence — each step escalates only if the one before it warrants it. A desktop Screen flags possible wetlands anywhere in the lower 48; a Confirmation, Delineation, and Jurisdictional Determination are field-based and serve Northern Illinois and the Midwest.

Step 1
Wetland Screen
A desktop review of government GIS data to flag whether a property may contain wetlands — no site visit.
$950
Flat fee · lower 48 states.
  • How: Remote desktop review
  • Tells you: Wetlands likely or not
  • Where: Anywhere in the lower 48
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Step 2
Wetland Confirmation
A scientist visits the site to confirm whether wetlands are actually present — the field check after a Screen.
$1,450*
*varies with travel time.
  • How: On-site field visit
  • Tells you: Wetlands present: yes/no
  • Where: N. Illinois / Midwest
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Step 3
Wetland Delineation
Maps the exact wetland boundary using the three parameters and the 1987 Army Corps Manual — a full report.
Contact Us
Scoped to the property.
  • How: Field flagging & GPS mapping
  • Tells you: The wetland boundary
  • Where: N. Illinois / Midwest
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Step 4
Jurisdictional Determination
The Army Corps reviews the delineation and rules on whether the wetlands are federally regulated under the Clean Water Act.
T&M
Time & material pricing.
  • How: USACE submittal & review
  • Tells you: Federal jurisdiction: yes/no
  • Where: N. Illinois / Midwest
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A commercial property under due diligence — the kind of site a wetland confirmation field visit checks before development

What Our Clients Say

A development parcel where a wetland confirmation determines whether wetlands are present before site planning

Credentials That Matter

1987 USACE Manual

Three-parameter method

Woman-Owned

Small business (WOSB)

10+ Years

Environmental consulting

4.9 / 5 Stars

Google Reviews

A property awaiting wetland due diligence before purchase or development

Understanding the Wetland Confirmation

A Wetland Confirmation is a focused on-site field visit that answers one question: are wetlands actually present on the property, yes or no? It is the natural next step after a Wetland Screen — a desktop review of government mapping data — has flagged that wetlands may be present. A Screen can only suggest; a Confirmation sends an environmental scientist to the property to verify in the field. It is faster and far less involved than a full Wetland Delineation, and it is the right-sized step when you need a definitive answer before deciding whether to invest in mapping the boundary.

The Three Parameters We Check

Under the 1987 USACE Wetlands Delineation Manual and its regional supplements, an area is a wetland only if it has all three of the following: hydrophytic (water-loving) vegetation, wetland hydrology, and hydric soils. The logic is simple but strict — if any one of the three is absent, the area is not a wetland. During the site visit our scientist evaluates each parameter directly in the field, which is why a presence/absence answer requires boots on the ground rather than a map.

What a Confirmation Is — and Is Not

A Confirmation tells you whether wetlands exist on the property. It does not map where they begin and end — that is the job of a Wetland Delineation, which flags and GPS-locates the boundary and produces a full report for permitting. Think of the Confirmation as the deliberate checkpoint between a Screen and a Delineation: many clients run it first precisely to avoid paying for a full delineation on a property that, it turns out, has no wetlands at all. If wetlands are present, the Confirmation tells you a Delineation is warranted; if they are not, you have a clean answer and can move forward.

Our Process, Pricing, and Service Area

The work runs in three steps: a desktop review of the site, a scientist's site visit to check the three parameters, and a concise confirmation memo stating whether wetlands are present and whether a Delineation is warranted. The fee is $1,450* — and because this is field work, the asterisk matters: the price varies with travel time and distance, since a property that takes most of a day to reach and return from costs more than one near our office. We perform Wetland Confirmations across Northern Illinois and the Midwest, typically within about a two-hour radius of Naperville, Illinois, and will travel farther for the right client and project. A3 Environmental has served the Midwest since 2015 with a 4.9★ Google rating.

A site being evaluated for wetlands during property due diligence

Frequently Asked Questions

A Wetland Confirmation is a focused on-site field visit where an environmental scientist walks the property and checks the three regulatory parameters — hydrophytic (water-loving) vegetation, wetland hydrology, and hydric soils — to give you a definitive yes-or-no answer on whether wetlands are actually present. All three parameters must be present for an area to be a wetland under the 1987 USACE Wetlands Delineation Manual and its regional supplements; if any one is absent, it is not a wetland. It is the right next step after a Wetland Screen has flagged a possible wetland.
A Wetland Screen is a remote desktop review of government GIS and mapping data — no one goes to the property — so it can only flag that wetlands may be present. A Wetland Confirmation puts a scientist physically on the site to verify the three parameters in the field, turning a 'maybe' into a definitive yes or no. The Confirmation is the field check that follows a Screen.
A Confirmation answers one question — are wetlands present on the property or not — through a focused field visit. A Wetland Delineation goes further: it maps the precise wetland boundary, flags and GPS-locates the edges, and produces a full report suitable for permitting. A Confirmation does not map the boundary. Many clients run a Confirmation first to decide whether a full Delineation is even warranted.
A Wetland Confirmation is field work, so travel drives the cost. The $1,450 figure reflects a site within an easy reach of our Naperville, Illinois office. Properties farther out — ones that take most of a day to reach and return from — cost more because of the added travel time. We confirm the exact fee when we know the site location.
We perform Wetland Confirmations across Northern Illinois and the Midwest. Because it is a field visit, we typically stay within about a two-hour radius of Naperville, Illinois, but we will travel farther for the right client and project — the additional travel is reflected in the quote.
If the field visit confirms wetlands are present, the next step is usually a Wetland Delineation to map the exact boundary so you know how much of the property is affected. Depending on the site and your plans, that may be followed by a Jurisdictional Determination, in which the U.S. Army Corps of Engineers rules on whether the wetlands are federally regulated under Section 404 of the Clean Water Act. If no wetlands are confirmed, your Confirmation memo documents that finding and no further wetland work is needed.
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