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March 2026 / Published in Ecological Services, Environmental Consulting

Environmental Consulting & Land Protection in Northern Illinois

A3 Environmental Consultants proudly congratulates Steve Barg of the Jo Daviess Conservation Foundation on receiving this year’s George and Barbara Fell Award at the Natural Land Institute Annual Dinner.

As an environmental consulting firm serving northern Illinois and southern Wisconsin, we are honored to stand alongside the Natural Land Institute (NLI) in advancing land protection, ecological stewardship, and responsible land management across the region. A3E, formerly as Olson Ecological Services, supported NLI in developing their Strategic Conservation Plan and continues to partner with them in land protection projects.

We also welcome guest speaker Joe Duff, co-founder of Operation Migration, whose conservation leadership continues to inspire environmental action throughout North America.

Events like the NLI Annual Dinner highlight the importance of collaboration between conservation organizations, land trusts, municipalities, and environmental consultants working toward long-term protection of natural resources.


About A3 Environmental Consultants

A3 Environmental Consultants (A3E) is a Midwest-based environmental consulting firm specializing in ecological restoration, environmental assessment, conservation planning, and regulatory support.

We work with:

  • Land trusts

  • Municipalities

  • Public agencies

  • Engineers and developers

  • Private landowners

Our mission is simple: deliver technically sound, practical environmental solutions that protect natural resources while supporting responsible growth and infrastructure development.


Our Environmental Consulting Services

Ecological Restoration & Conservation Planning

A3E provides science-based ecological services that improve ecosystem health and long-term sustainability, including:

  • Habitat restoration and native planting design

  • Wetland and stream restoration

  • Invasive species management

  • Restoration monitoring and adaptive management

  • Natural area assessments

  • Conservation land management planning

We regularly support land protection initiatives and conservation easement projects throughout northern Illinois and southern Wisconsin.


Environmental Due Diligence & Site Assessments

Our environmental assessment services help clients identify and manage environmental risk in real estate and development transactions.

Services include:

  • Phase I Environmental Site Assessments (Phase I ESA)

  • Environmental Transaction Screens

  • Preliminary Site Investigations

  • Third-Party Reviews

  • Environmental compliance evaluations

We provide clear, defensible reports that support informed decision-making and regulatory compliance.


Wetland Delineation & Regulatory Permitting

Navigating environmental regulations requires both technical expertise and regional knowledge. A3E assists clients with:

  • Wetland delineations

  • Waters of the U.S. determinations

  • State and federal permitting coordination

  • Compensatory mitigation planning and design

  • Agency consultation and documentation

Our team works closely with regulatory agencies to streamline permitting while protecting critical natural resources.


Supporting Land Protection Across the Midwest

From conservation partnerships to infrastructure projects, A3E is committed to advancing land protection, ecological restoration, and responsible environmental stewardship throughout the Midwest.

We believe strong communities depend on healthy ecosystems — and successful projects balance environmental responsibility with practical implementation.

A3 Environmental Consultants
Plan • Assess • Design • Mitigate • Protect • Restore
www.a3e.com

What you can read next

CADD for CCDD
CADD – Clean Construction Demolition Debris (CCDD) Figures
CADD Asbestos Abatement Plans
CADD – Asbestos Abatement Plans
Chaffee Housing Trust HUD Phase I ESA : 24 CFR Part 58
HUD Phase I ESA / 24 CFR Part 58 Project Profile
A3E Logo

A3E Logo

Environmental Due Diligence

ES – Environmental Screens
RSRA – Record Search Risk Assessment
TSA
– Transaction Screen
Phase 1 ESA
Phase 2 ESA
PESA –
Preliminary ESA
PSI
– Preliminary Site Investigation
Soil Gas –
Investigation
BEA – Baseline Environmental

Nationwide Resource Map

A3E Home Page

A3E About Us

HQ:   (888) 405-1742
Email:  Info@A3E.com

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