As communities expand wastewater treatment capacity, regulatory requirements can become as complex as the project design/engineering itself. Among the most nuanced requirements is anti-degradation, also known as non-degradation, a policy rooted in the Clean Water Act (CWA) that is increasingly relevant for growing systems. While technology-based effluent limits (TBELs) such as biochemical oxygen demand (BOD) Read More
Category: 2026 April
Chlorobenzene Under Review by MN Department of Health
The Minnesota Department of Health (MDH) is taking a closer look at the chemical Chlorobenzene. The MDH Health Risk Assessment Unit began a chemical review of chlorobenzene in March. The agency reviews chemical toxicity information in response to requests from State agencies and individuals to determine if health-based guidance values need to be developed or Read More
USEPA Announces CCL 5 Contaminant Regulatory Determinations
The U.S. Environmental Protection Agency (USEPA) announced in mid-March that it will not develop regulations for nine of the 81contaminants listed on the Fifth Contaminant Candidate List (CCL5). The Safe Drinking Water Act (SDWA) requires USEPA to make regulatory determinations every five years on at least five unregulated contaminants. USEPA used a three-phase process to Read More