Environmental control apparatus, consisting of self-regulating valves for use in storm water drainage systems and Combined Sewer Overflow (CSO) applications; Environmental control apparatus, namely, storm water and Combined Sewer Overflow (CSO) management equipment in the nature of valves and self-regulating valves for controlling, regulating, and managing the flow of storm water and Combined Sewer Overflow (CSO); Environmental control apparatus consisting of self-regulating valves for storm ...