Environmental consulting for the St. Louis area

Helping projects across the St. Louis region get permitted and stay compliant.

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Experienced professionals, focused service

Brookside Environmental Services is a natural resources consulting firm based in O’Fallon, Missouri. With our partner, Yoder Baer & Associates, we bring more than 40 years of combined experience in biology, soil science, hydrology and botany.

About our firm

Fieldwork, permitting and compliance

We handle the environmental side of a project, from the first site visit through permitting and compliance. That includes wetland and stream delineation and mitigation, 401/404 permitting and agency coordination, plant surveys, soil and hydrology analysis, and SWPPP monitoring.

Learn about our services
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Consulting for developers, engineers and communities

We work with anyone who needs to know what’s on a piece of land before they build on it, buy it or take care of it.

MunicipalitiesSupport for trails, utilities, stormwater and compliance.
HomeownersStraight answers about wetlands, streams or soils on your property.
Land developersDelineations and 404 permits, so you can plan around what is on the site.
ContractorsSWPPP inspections and permit monitoring in the field.
Civil engineersA natural resources partner for your design team.

Our experience

We’ve worked on everything from small residential lots to a 1,900-acre commercial development.

View project list
45+
Projects completed
40+
Combined years of experience
20+
Years working across Missouri
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Tell us about your project

If you’re looking at a property, planning a development or working through a permit requirement, give us a call or send a note.

Contact us