Water Quality Unit Types & Manufacturers

Understanding Modern Stormwater Treatment Technologies, Water Quality Units, and the

Engineering Principles That Drive Their Selection

Modern development requires more than simply moving stormwater away from a site. Today's projects must also improve water quality by removing pollutants before runoff reaches downstream

waterways.

This module introduces the engineering principles behind Water Quality Units while explaining how hydrodynamic separators, media filtration systems, oil-grit separators, pretreatment structures, and

integrated treatment trains work together to protect infrastructure and the environment.

Rather than serving as a product catalog, this guide explains why these technologies exist, how engineers evaluate treatment systems, and how major manufacturers approach stormwater treatment through different engineering philosophies.

Whether you're an engineer, contractor, municipal official, developer, estimator, distributor, or student of civil infrastructure, this module provides a practical understanding of one of the fastest-growing segments of modern stormwater management.