US EPA Method 29 ensures metal emissions from industrial smokestacks meet state-specific limits to protect the environment. As the limits for specific elements decrease over time, achieving decreased instrument detection limits becomes crucial for a laboratory's success.

On December 1, 2020, the State Water Resources Control (State Board) approved the California Statewide Toxicity Provisions.

After many years of drafts, comments, discussion, debate, consideration, and negotiation, the California Statewide Toxicity Provisions are expected to be considered for approval by the State Water Resources Control (State Board) in December 1, 2020.

Whole Effluent Toxicity (WET) testing is a critical component of monitoring the health of aquatic ecosystems and it is included in many National Pollutant Discharge Elimination System (NPDES) permits. If your NPDES permit includes WET testing, it is important to understand why it exists and how to best implement it in order to save time, money, and other resources.