In case you missed it: Storm drain technology

REGION

The cover of last Sunday's Globe West featured a story about how new technologies are helping cities, towns, and private developers capture and clean storm runoff before it can carry pollution into the region's rivers and lakes.

Laced with harmful bacteria, chemicals, and trash, storm water is the primary frustration for environmentalists trying to restore the region's waterways and turn them into healthy places to swim, boat, and fish.

The story included a graphic explaining one system -- which turns an ordinary sidewalk tree planter into a storm water capturing and cleaning device -- being marketed by Virginia-based Filterra Bioretention Systems.

Going the extra mile for Globe West's readers, David Butler of the Graphics Department took that drawing and turned it into this interesting animation. Check it out.

-- Ralph Ranalli