Water Quality
New GP (GP-0-20-001) for Construction Activities Issued January 28, 2020

New GP (GP-0-20-001) for Construction Activities Issued January 28, 2020

The New York State Department of Environmental Conservation (NYSDEC or Department) issued a new State Pollutant Discharge Elimination System (SPDES) General Permit for Stormwater Discharges from Construction Activity (GP-0-20-001). The new permit has been effective...

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Five Steps for Quality Assurance & Quality Control (QA/QC) in Groundwater Sampling

Five Steps for Quality Assurance & Quality Control (QA/QC) in Groundwater Sampling

Groundwater Sampling Groundwater sampling and monitoring is a crucial component of the majority of subsurface remediation work. Walden addressed the topic of monitoring well (well) installation in a previous blog; well networks are strategically designed based on the...

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