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Forested stream

Biological and Water Quality Assessments.

Defensible biological, habitat, and water-quality data for environmental planning, regulatory compliance, and restoration.

Stream Monitoring.

Science-Based Methods

We use standard protocols backed by science to deliver reliable, defensible, and reproducible results.

Regulatory Compliance

Our work meets all state of Georgia and federal standards for environmental monitoring.

Quality Data

We provide accurate and consistent data to effectively support environmental decision making.

Experienced Team

Our team brings decades of combined field, lab, and data analysis experience with projects across the Southeastern US.

Person examining a fish with a stream in the background.

Stream Fish Assessment.

Gerrin Ecological Services is permitted for stream fish assessments in most Georgia watersheds. We closely follow the Georgia DNR standard operating procedures to ensure our clients get the best data possible.

OUR ASSESSMENTS INCLUDE:

Reconnaissance and physical measurements

Physical habitat assessments

In-situ water quality measurements

Index of biotic integrity calculations

Comprehensive report detailing findings

Macroinvertebrate Assessment.

The Gerrin Ecological Services team has over 15 years of combined experience with Georgia macroinvertebrate sampling and taxonomy.

OUR ASSESSMENTS INCLUDE:

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Substrate particle (pebble) counts

Cross-sectional discharge measurements

Water quality sampling

Physical habitat assessments

Macroinvertebrate sorting and identification

Multi-metric index calculations

Comprehensive report detailing findings

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Two people in a stream sampling with a net.
Water quality meter being held in the water.

Water Quality.

Gerrin Ecological Services can accommodate almost any water quality sampling project. From regulatory compliance sampling to pollutant source tracking, we design water quality studies to fit our client's needs.

EXAMPLES OF SERVICES:

Bacteria and E. coli 

Nutrients and metals

In-situ water quality measurements

Microbial or pollutant source tracking

Comprehensive report detailing findings

Let's Work Together.

Have a project in mind? We'd love to discuss it with you!

Contact us to get a quote and get started.

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