Environmental Sampling & Monitoring


At EST, we understand that the collection of accurate and representative samples are one of the first and most critical steps towards the generation of accurate laboratory analytical data. EST has the experience and depth of resources to ensure that the samples we collect are representative and legally defendable. Our sampling programs are driven by established protocols and extensive Quality Assurance/Quality Control (QA/QC). In addition, EST’s sampling programs are executed by some of the most reliable and qualified staff in the industry.


Wastewater Compliance Sampling

EST collects wastewater samples for permit compliance . Our clients include leading manufacturers, public agencies, hospitals, universities, and life sciences companies.

Groundwater Monitoring

EST has extensive experience with the collection of groundwater samples in accordance with the US EPA’s Low Flow Purging and Sampling Procedures.

Stormwater Sampling

EST is equipped to support all weather contingent field services related to National Pollutant Discharge Elimination System (NPDES) permits. 

Soil & Sediment Sampling

EST’s sampling services include everything from superficial samples (0-6 inches) to continuous samples collected via Geoprobe™  or conventional drilling methods.

Soil Vapor Intrusion (SVI)

In order to identify chemical vapors that might be migrating through subsurface soils or underground utilities, EST can perform soil vapor intrusion sampling in accordance with applicable DEP guidance documents

SARS-Cov-2 / COVID-19 Sampling

EST is a leader in COVID-19 wastewater surveillance providing expert guidance from determining points of collection, installation, equipment rentals, sample collection, and demobilization.

New England Office

124 Crescent Road, Needham, MA 02494

Mid-Atlantic Office

127-G Gaither Drive, Mount Laurel, NJ 08054