| Title | Definition |
|---|---|
| Bentonite | A colloidal clay composed mainly of sodium montmorillonite, a hydrated aluminum silicate. A.A.C. R12- |
| Blowdown water | Water discharged from a cooling tower recirculating water stream to control the buildup of minerals or other impurities in the recirculating water. |
| Body of water | A constructed body of water or interconnected bodies of water, including a lake, pond, lagoon, or swimming pool, that has a surface area greater than 12,320 square feet when full and that is filled or refilled primarily for landscape, scenic, recreational purposes, or regulatory storage. |