From rain to rivers to lakes and oceans, water flows.

Nature captures and filters water to keep it clean from contaminants and sediments.

Construction and pavement change nature and impact this essential function.

Low Impact Development provides a smarter way to build.

Working with nature to prevent pollution and protect water.

The LID Certification System recognizes new and re-development projects—private and public—that employ established standards and practices for keeping waters clean.  The goal is to reduce runoff and to catch every drop of water from our built landscape before it reaches a stream or lake, curbing stormwater pollution by allowing nature to perform its vital role.