Section 93102.9 - Parameter Monitoring Requirements(a)Ampere-Hours. Each Chrome Plating Tank, or group of Chrome Plating Tanks, shall have installed a continuous recording, non-resettable, Ampere-Hour meter that operates on the electrical power lines connected to the Tank or group of Tanks. A separate meter shall be hard-wired for each rectifier.(b)Pressure drop. The Owner or Operator shall continuously monitor the pressure drop across an Add-on Air Pollution Control Device such as a Composite Mesh-Pad (CMP), Packed-Bed Scrubber (PBS, a CMP/PBS, Fiber-Bed Mist Eliminator, and a HEPA Filter with a mechanical gauge. The gauge shall be located so that it can be easily visible and in clear sight of the operation, or maintenance personnel. The pressure drop shall be maintained within plus or minus 2 inches of water of the value established during the Source Test to demonstrate compliance with the Emission Limitation for CMP, PBS, a CMP/PBS, and a Fiber-Bed Mist Eliminator. The pressure drop shall be maintained within - 1/2 times to +2 times the inches of water of the value established during the Source Test to demonstrate compliance with the Emission Limitation for HEPA Filters.(c)Inlet velocity pressure. The Owner or Operator shall continuously monitor the inlet velocity pressure of a Packed-Bed Scrubber with a mechanical gauge. The gauge shall be located so that it can be easily visible and in clear sight of the operation, or maintenance personnel. The inlet velocity pressure shall be maintained within plus or minus 10 percent of the value established during the Source Test to demonstrate compliance with the Emission Limitation.(d)Surface Tension.(1) The Owner or Operator of a Facility that is required to use a Chemical Fume Suppressant as specified in section 93102.8 to comply with section 93102.4 shall measure and monitor the Surface Tension of the Chrome Plating Bath(s) that contains a Chemical Fume Suppressant listed in Table 93102.8 of section 93102.8 with either a Stalagmometer using the procedure in Appendix 7 of section 93102.16 or a procedure approved by the District, or with a Tensiometer using U.S. EPA Method 306B (40 Code of Federal Regulations, part 63, Appendix A). The Surface Tension shall be maintained below the value required by section 93102.8. Surface Tension shall be measured Daily for 20 Operating Days, and Weekly thereafter as long as there is no violation of the Surface Tension requirement. If a violation occurs, the measurement frequency shall return to Daily for 20 Operating Days, and Weekly thereafter.(2) The Owner or Operator of a Facility using a Chemical Fume Suppressant containing a Wetting Agent that is not required to use a Chemical Fume Suppressant listed in Table 93102.8 of section 93102.8 shall measure and monitor the Surface Tension of the Chrome Plating Bath(s) with either a Stalagmometer using the procedure in Appendix 7 of section 93102.16 or a procedure approved by the District, or with a Tensiometer using U.S. EPA Method 306B (40 Code of Federal Regulations, part 63, Appendix A). If the Surface Tension is measured with a Stalagmometer, the Surface Tension shall be maintained below 45 dynes/centimeter. If the Surface Tension is measured with a Tensiometer, the Surface Tension shall be maintained below 35 dynes/centimeter. Surface Tension shall be measured Daily for 20 Operating Days, and Weekly thereafter as long as there is no violation of the Surface Tension requirement. If a violation occurs, the measurement frequency shall return to Daily for 20 Operating Days, and Weekly thereafter.(3) Facilities with an approved alternative method of compliance as specified in section 93102.14 and using Chemical Fume Suppressants as all or partial control of Hexavalent Chromium emissions must measure and monitor the Surface Tension of the Chrome Plating Bath Daily. The Surface Tension must be maintained at or below the Surface Tension measured during the Source Test.(e)Foam Blanket thickness. The Owner or Operator shall monitor the Foam Blanket thickness across the surface of the Chrome Plating Bath(s). The Foam Blanket thickness shall be maintained consistent with the requirements established during the Source Test to demonstrate compliance with the Emission Limitation. Foam thickness shall be measured Hourly for 15 Operating Days, and Daily thereafter as long as there is no violation of the foam thickness requirement. If a violation occurs, the measurement frequency shall return to Hourly for 15 Operating Days, and Daily thereafter.(f)Mechanical Fume Suppressants. The Owner or Operator shall visually inspect the Chrome Plating Bath(s) for coverage comparable to the coverage during the Source Test Daily.Cal. Code Regs. Tit. 17, § 93102.9
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. Renumbering and amendment of former subsection 93102(e) and its subdivisions to new section 93102.9 filed 9-24-2007; operative 10-24-2007 (Register 2007, No. 39).
2. Amendment of section and Note filed 12-28-2023; operative 1/1/2024 pursuant to Government Code section 11343.4 (Register 2023, No. 52).