Section 93102.6 - Requirements that Apply to Trivalent Chromium Plating or Enclosed Hexavalent Chromium Plating Tanks(a)Provisions that Apply to All Facilities that Perform Trivalent Chromium Plating.(1) Total chromium emissions from Trivalent Chromium Plating Tanks shall be controlled by either: (A) Meeting an Emission Limitation of [LESS THAN EQUAL TO] 0.01 mg/dscm (4.4x10-6 gr/dscf), complying with the Source Test requirement in section 93102.7(a)(5), and complying with the reporting requirements in section 93102.13(d)(1)(B) (for Facilities using Trivalent Chromium Plating prior to January 1, 2024) or section 93102.13(d)(2)(B) (for Facilities changing to Trivalent Chromium Plating on or after January 1, 2024); or(B) Using a Wetting Agent as a Bath Component, complying with the recordkeeping requirements in section 93102.12(h), and complying with the reporting requirements in section 93102.13(d)(1)(A) (for Facilities using Trivalent Chromium Plating prior to January 1, 2024) or section 93102.13(d)(2)(A) (for Facilities changing to Trivalent Chromium Plating on or after January 1, 2024).(2) An Owner or Operator that performs Trivalent Chromium Plating and complies with subsection (a)(1)(B) through use of a Wetting Agent shall not be required to comply with the requirements of sections 93102.7, 93102.8, 93102.9(b) through (f), 93102.10, 93102.11, 93102.12(a) through (g), and 93102.12(i).(3) An Owner or Operator that performs Trivalent Chromium Plating and complies with the 0.01 mg/dscm limit in subsection (a)(1)(A) shall not be required to comply with the requirements of section 93102.8.(4) If a Facility has Hexavalent Chromium Containing Tanks in addition to Tanks being used for Trivalent Chromium Plating, the Hexavalent Chromium Containing Tanks must be in compliance with all of the applicable requirements of this ATCM.(5)Labeling of Tanks. Beginning July 1, 2024, all Trivalent Chromium containing Tank(s) shall be clearly labeled with a Tank number or other identifier, District permit number, and Bath Components.(b)Requirements for Enclosed Hexavalent Chromium Plating Tanks.(1) The Owner or Operator of a Facility with Enclosed Hexavalent Chromium Plating Tank(s) shall control Hexavalent Chromium emissions from the Enclosed Hexavalent Chromium Plating Tank(s) by: (A) Achieving a Hexavalent Chromium Emission Limitation of 0.015 mg/dscm from each Enclosed Hexavalent Chromium Plating Tank as measured after passage through the Add-on Air Pollution Control Device(s);(B) Using a Chemical Fume Suppressant specified in section 93102.8, and maintaining the Surface Tension of the Chrome Plating Bath solution at a value specified in section 93102.8; or(C) Not allowing the mass emission rate of the total chromium to exceed the maximum allowable mass emission rate as specified in Appendix 6.(2) The Owner or Operator of a Facility that has Enclosed Hexavalent Chromium Plating Tank(s) must comply with all applicable requirements of this ATCM.Cal. Code Regs. Tit. 17, § 93102.6
Note: Authority cited: Sections 39600, 39601, 39650, 39658, 39659 and 39666, Health and Safety Code. Reference: Sections 39650, 39658, 39659, 39665 and 39666, Health and Safety Code; and 40 Code of Federal Regulations Part 63 Subpart N.
Note: Authority cited: Sections 39600, 39601, 39650, 39658, 39659 and 39666, Health and Safety Code. Reference: Sections 39650, 39658, 39659, 39665 and 39666, Health and Safety Code; and 40 CFR Part 63 Subpart N.
1. New section filed 9-24-2007; operative 10-24-2007 (Register 2007, No. 39).
2. Amendment of section heading, section and NOTE filed 12-28-2023; operative 1/1/2024 pursuant to Government Code section 11343.4 (Register 2023, No. 52).