Air Quality Studies

Air Quality Studies

Many of today’s industries make use of a variety of materials and chemical compounds that may be harmful to humans. Air sampling is routinely used to evaluate potential exposure and to determine remediation and mitigation protocols. One of Walden’s clients operates a...
Stormwater Sampling

Stormwater Sampling

The Clean Water Act (CWA) also known as the Federal Water Pollution Control Act requires that stormwater discharges associated with industrial activity from a point source to waters of the United States are unlawful, unless authorized by a National Pollutant Discharge...