Hexavalent Chromium ATCM for Decorative and Hard Chrome

Effective Date: October 24, 2007The permitting agency may approve, on a case-by-casebasis, alternative standards for hard chromiumelectroplating facilities using less than or equal to 500,000ampere-hours per year. The operation must have beenconstructed on or before December 16, 1993. At aminimum, the facility must use a chemical fumesuppressant containing a wetting agent to lower thesurface tension of the plating bath to at least 45 dynes percentimeter (dynes/cm) (3.1x10 -3 pound-force per foot[lbF/ft]). Effective April 24, 2008, the chemical fumesuppressant used by the facility must meet the criteriaspecified in section 93102.8 and the surface tension shallbe maintained below the value specified in Table 93102.8.The permitting agency may require additional emissionreduction techniques as necessary to reduce the publichealth impact of emissions from the operation. The owneror operator must comply with the applicable parametermonitoring [section 93102.9], recordkeeping[section 93102.12], and reporting [section 93102.13]requirements. If an emission reduction technique notidentified in this rule is used, the owner or operator mustsubmit a plan to the permitting agency describing thealternative technique and identifying appropriatemonitoring, recordkeeping, and reporting requirements.The permitting agency, with U.S. EPA concurrence, shallapprove this plan if equivalent results are obtained. Uponapproval, the requirements identified in the plan shall bethe applicable requirements under this regulation.(2) Requirements that Apply to Existing Hexavalent DecorativeChromium Electroplating and Chromic Acid AnodizingFacilities Until the Limits in subsection 93102.4(b) BecomeEffective.During tank operation, each owner or operator of an existingdecorative hexavalent chromium electroplating or chromic acidanodizing facility shall control hexavalent chromium emissionsdischarged to the atmosphere by meeting either of therequirements identified below.14