Q: What are Best Management Practices (BMPs) and Water Quality Objectives (WQOs)?

A best management practice (BMP) is a structural OR non-structural application whose conceptual design will vary depending on the site's specific needs or constituent of concern. These range from educational hand-outs that encourage "no dumping drains to ocean" signage to low impact development BMPs (LID BMPs), Source Control BMPs and Treatment Control BMPs (TCBMPs).

A water quality objective (WQO) is the ultimate goal in achieving a visible and sustainable improvement in water quality.

Because no one measure can remove all pollutants of concern, implementing a fit-for-purpose treatment system to your site will assist you with achieving your water quality objective.

The type of treatment measure implemented, whether structural or not is the key to achieving your water quality objectives (WHOs). The interaction between BMPs and WQOs is essential to reduce a range of pollutants, thereby enhancing water quality.

Q: Once a BMP is installed, am I responsible for the ongoing maintenance?

Municipalities require owners and responsible parties in both public and private sector to implement a maintenance program on each storm water treatment control measure installed and ensure its proper compliance. City inspectors and code enforcement will periodically conduct compliance inspections to ensure these devices are kept clean and functioning pursuant to manufactures specification. Compliance is mandated.

Useful Links

California Stormwater Quality Association
OC Watersheds
Stormwater Magazine