Hexavalent Chromium ATCM for Decorative and Hard Chrome

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Effective Date: October 24, 2007§ 93102.6 Special Provisions that Apply Only to Facilities thatPerform Electroplating Using a Trivalent Chromium Bath orEnclosed Hexavalent Chromium Electroplating Tanks.(a)Provisions that Apply to All Facilities that Perform ElectroplatingUsing a Trivalent Chromium Bath.(1) During tank operation, each owner or operator of an existing,modified, or new facility shall control total chromium emissionsdischarged to the atmosphere by meeting either of therequirements identified below.Method of Complianceadd-on air pollution control equipment,or chemical fume suppressants, ormechanical fume suppressants (i.e.polyballs)chemical fume suppressants containinga wetting agentRequirement≤0.01 mg/dscm (4.4x10 -6 gr/dscf)use wetting agent as bath ingredientand comply with recordkeeping andreporting provisions of sections93102.12(i) and 93102.13(e).(2) New facilities that perform electroplating using a trivalentchromium bath must conduct a facility wide site specific riskanalysis in accordance with the permitting agency’sprocedures. The analysis shall be submitted to the permittingagency.(3) An owner or operator that performs electroplating using atrivalent chromium bath and complying through use of achemical fume suppressant containing a wetting agent shallnot be required to comply with the requirements of sections93102.4, 93102.5, 93102.7, 93102.8, 93102.9(b) through (f),93102.10, 93102.11, 93102.12(a) through (f), and93102.12(h).(4) An owner or operator that performs electroplating using atrivalent chromium bath and complying with the≤ 0.01 mg/dscm limit shall not be required to comply with therequirements of sections 93102.4, 93102.5, and 93102.8.(5) If a facility has hexavalent chromium tanks in addition totrivalent chromium tanks, the hexavalent chromium tanks mustcomply with all of the requirements of the ATCM relating tohexavalent chromium facilities that do not have enclosedtanks.22
Effective Date: October 24, 2007(b)Requirements for Enclosed Hexavalent Chromium ElectroplatingTanks.(1) The owner or operator of a hexavalent chromiumelectroplating facility with enclosed hexavalent chromiumplating tank(s) shall control hexavalent chromium emissionsfrom the electroplating tank(s) by:(A)(B)(C)Achieving a hexavalent chromium emission limitation of0.015 mg/dscm from each tank as measured after the addonair pollution control device(s); orUsing a chemical fume suppressant specified in section93102.8, and maintaining the surface tension of the platingbath solution at a value specified in section 93102.8; orNot allowing the mass rate of the total chromium to exceedthe maximum allowable mass emission rate determined byusing the calculation procedure specified in Appendix 7.(2) The owner or operator of an existing facility that has onlyenclosed hexavalent chromium plating tank(s) must complywith all requirements of this ATCM except for the requirementsset forth in section 93102.4.(3) If a facility has hexavalent chromium plating tanks that are notenclosed in addition to enclosed hexavalent chromium tanks,the hexavalent chromium tanks that are not enclosed mustcomply with all the requirements of the ATCM related tohexavalent chromium facilities that do not have enclosedtanks.(4) New facilities with enclosed hexavalent chromium platingtanks must comply with section 93102.4(d)(1).NOTE: Authority cited: Sections 39600, 39601, 39650, 39658, 39659, and 39666, Health andSafety Code. Reference: Sections 39650, 39658, 39659, 39665, and 39666, Health and SafetyCode; and 40 CFR Part 63 Subpart N.§ 93102.7 Performance Test Requirements and Test Methods.(a)Performance test requirements.(1) The following hexavalent chromium facilities must conduct aperformance test to demonstrate compliance with thehexavalent chromium emission rate as specified in section93102.4:23
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Hexavalent Chromium ATCM for Decorative and Hard Chrome

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