Question # 600

600. How are chlorine releases reported? Must chlorine, CAS number 7782-50-5, be reported if it is transformed into another chemical compound during the release process?
If chlorine is present in waste released by a facility it must be reported even though the chlorine may be transformed in the environment subsequent to the release. If the chlorine is transformed in the waste stream prior to any releases, the facility must still report if an activity threshold is met, but the amount reported may be zero.