In December 2016, we ran a zinc specific webinar on sources and BMPs. As a follow up to that webinar and our previous post on zinc, we put together a list of some roof filter BMPs that can be used for aerial deposition of TSS, copper, and/or zinc coming from the roof via stormwater. Note, that I do not endorse any of these products and you can make roof filters yourself with a planter, gravel underdrain, and zeolites. If you are looking for a commercial option, here are a few I have found:
- Option 1 from Oldcastle
- Option 2 from Stormwater BMP Products
- Option 3 from REM
- Option 4 from Forterra
Media blend of activated carbon and zeolites
Things to Consider
When selecting the perfect BMP, there are many important considerations beyond “Yo how much does it cost?”. For your BMPs, I would be looking at the following:
- Cost
- Installation – time, difficulty, and third-party or myself
- Size and flow rates
- Maintenance cost & time
- Media type – does it target my pollutant
