For any ferrous foundry installed prior to or on May 12, 1971, the owner or operator shall not cause or allow the emission of particulate matter, including fumes, to exceed the emission standards specified for “Existing Devices” in Table 2102-1.

Source. #6428-B, eff 1-18-97 (formerly Env-A 1206); ss by #8214, eff 11-24-04; ss by #10315, eff 4-23-13 (from Env-A 2403.01); ss by #13694, eff 7-22-23