Hexavalent Chromium ATCM for Decorative and Hard Chrome

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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
Effective Date: October 24, 2007Method of Compliance1. add-on air pollution controlequipment, or chemical fumesuppressants, or mechanical fumesuppressants (i.e. polyballs)2. chemical fume suppressantscontaining a wetting agent 11Requirement≤ 0.01 milligrams per dry standardcubic meter of air (mg/dscm)(4.4x10 -6 gr/dscf)≤ 45 dynes per centimeter (dynes/cm)(3.1x10 -3 pound-force per foot [lbF/ft])Effective April 24, 2008, the chemical fume suppressant used by the facility must meetthe criteria specified in section 93102.8 and the surface tension shall be maintainedbelow the value specified in Table 93102.8.(b)Limits that Apply to All Existing Hexavalent Hard and DecorativeChromium Electroplating and Chromic Acid Anodizing FacilitiesAfter October 24, 2007.(1) During tank(s) operation, each owner or operator of anexisting hexavalent chromium facility shall control hexavalentchromium emissions discharged to the atmosphere bymeeting the requirements identified below.Table 93102.4: Hexavalent Chromium Emission Limits for Existing TanksAnnualSensitive PermittedEmission LimitationEffective DateReceptorDistance 1Ampere-HoursUse Chemical Fume Suppressants as≤ 330 feet ≤ 20,000 specified in section 93102.8 2 April 24, 2008≤ 330 feet> 20,000 and≤ 200,000≤ 330 feet > 200,000> 330 feet ≤ 50,000> 50,000 and> 330 feet ≤ 500,000> 330 feet > 500,0001230.0015 milligrams/ampere-hour asmeasured after add-on air pollutioncontrol device(s)0.0015 milligrams/ampere-hour asmeasured after add-on air pollutionOctober 24, 2010October 24, 2009control device(s) 3Use Chemical Fume Suppressant asspecified in section 93102.8 2 April 24, 20080.0015 milligrams/ampere-hour October 24, 20110.0015 milligrams/ampere-hour asmeasured after add-on air pollution October 24, 2009control device(s) 3Distance shall be measured as specified in section 93102.4(b)(2)(A).Alternatively, a facility may install an add-on air pollution control device(s) that controlsemissions to below 0.0015 milligrams per ampere-hour.When annual emissions exceed 15 grams a site specific risk analysis must be conductedby the owner or operator in accordance with the permitting agency’s procedures, unless asite specific risk analysis has already been conducted and approved by the permittingagency. The analysis shall be submitted to the permitting agency.15
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Hexavalent Chromium ATCM for Decorative and Hard Chrome

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