1 

 Final Regulation Order 

The following is the final regulation order for the Air Resources Board’s 

amendments to title 17, California Code of Regulations sections 

93102-93102.16: 

Section headings shown in bold are to be bold in Barclays California Code of 

Regulations. Subsection headings shown in italics are to be italicized in Barclays 

California Code of Regulations. 

§ 93102. Airborne Toxic Control Measure for Chromium Plating and 

Chromic Acid Anodizing Facilities.

The Airborne Toxic Control Measure for Chromium Plating and 

Chromic Acid Anodizing Facilities (ATCM) is contained in 

sections 93102 through 93102.16. The ATCM is organized as 

follows: 

Sections 93102 through 93102.3 specify the applicability of the 

ATCM, exemptions, and definitions. Section 93102.4 sets forth 

requirements for hexavalent chromium facilities that differ 

depending on whether a facility is an existing facility, a modified 

facility, or a new facility. Section 93102.5 sets forth various new 

requirements that apply to all facilities beginning October 24, 

2007 (i.e., all existing, modified, and new facilities). Section 

93102.6 contains special provisions that apply only to enclosed 

hexavalent chromium electroplating facilities and facilities that 

perform electroplating using a trivalent chromium bath. 

Sections 93102.7 through 93102.14 contain additional 

requirements that apply to all facilities, unless an exception is 

provided in this ATCM. Most of the requirements in sections 

93102.7 through 93102.14 have been in effect since 1998. 

Section 93102.15 sets forth requirements that apply to the 

manufacture, sale, supply, offer for sale, and use of chromium 

plating and chromic acid anodizing kits in California. There are 

nine appendices to the ATCM; these appendices are contained 

in section 93102.16. 

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. 

Effective Date: October 24, 2007
2 

§ 93102.1 Applicability.

(a) This regulation shall apply to: 

(1) The owner or operator of any facility performing hard 

chromium electroplating, decorative chromium electroplating, 

or chromic acid anodizing. 

(2) Any person who sells, supplies, offers for sale, uses, or 

manufactures for sale in California a chromium electroplating 

or chromic acid anodizing kit. 

(b) Title V Permits. 

 The owner or operator of a major source subject to the 

requirements of this section is required to obtain a title V permit 

(See 42 U.S.C. 7401, et seq.) from the permitting authority of the 

district in which the major source is located. 

(c) Severability. 

Each part of this ATCM shall be deemed severable, and in the 

event that any part of this ATCM is held to be invalid, the remainder 

of this ATCM shall continue in full force and effect.

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. 

§ 93102.2 Exemptions. 

(a) This regulation shall not apply to process tanks associated with a 

chromium electroplating or chromic acid anodizing process, but in 

which neither chromium electroplating nor chromic acid anodizing is 

taking place. Examples of such tanks include, but are not limited 

to, rinse tanks, etching tanks, electro stripping tanks and cleaning 

tanks. Tanks that contain a chromium solution, but in which no 

electrolytic process occurs, are not subject to this regulation. An 

example of such a tank is a chromium conversion coating tank 

where no electrical current is applied.

(b) The requirements of sections 93102.4 and 93102.11 do not apply 

during periods of equipment breakdown, provided the provisions of 

the permitting agency's breakdown rule are met (see Appendix 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 CFR Part 63 Subpart N. 

Effective Date: October 24, 2007
3 

§ 93102.3 Definitions.

(a) For the purposes of this regulation, the following definitions shall 

apply:

(1) “Add-on air pollution control device” means equipment 

installed in the ventilation system of chromium electroplating 

and anodizing tanks for the purposes of collecting and 

containing chromium emissions from the tank(s). 

(2) “Air pollution control technique” means any method, such as 

an add-on air pollution control device, mechanical fume 

suppressant or a chemical fume suppressant, that is used to 

reduce chromium emissions from chromium electroplating and 

chromic acid anodizing tanks. 

(3) “Ampere-hours” means the integral of electrical current applied 

to a plating tank (amperes) over a period of time (hours). 

(4) “Annual permitted ampere-hours” means the maximum 

allowable chromium plating or anodizing rectifier production in 

ampere-hours, on an annual basis as specified in the 

permitting agency's Permit to Operate for the facility. 

(5) “Area source” means any stationary source of hazardous air 

pollutants that is not a major source as defined in this part. 

 

(6) “Base material” means the metal or metal alloy, or plastic that 

comprises the workpiece. 

 

(7) “Bath component” means the trade or brand name of each 

component(s) in trivalent chromium plating baths. For trivalent 

chromium baths, the bath composition is proprietary in most 

cases. Therefore, the trade or brand name for each 

component(s) can be used; however, the chemical name of 

the wetting agent contained in that component must be 

identified. 

 

(8) “Breakdown” means an unforeseeable impairment of an air 

pollution control equipment or related operating equipment 

which causes a violation of any emission limitation or 

restriction prescribed by a permitting agency's rule or by State 

law and which: is not the result of neglect or disregard of any 

air pollution control law, rule, or regulation; is not intentional or 

the result of negligence, or improper maintenance; is not a 

recurrent breakdown of the same equipment; and, does not 

Effective Date: October 24, 2007
4 

constitute a nuisance pursuant to section 41700 of the 

California Health and Safety Code, with the burden of proving 

the criteria of this section placed upon the person seeking to 

come under the provisions of this law. 

 

(9) “Chemical fume suppressant” means any chemical agent that 

reduces or suppresses fumes or mists at the surface of an 

electroplating or anodizing bath; another term for fume 

suppressant is mist suppressant. 

 

(10) “Chromic acid” means the common name for chromium 

anhydride (CrO3). 

 

(11) “Chromic acid anodizing” means the electrolytic process by 

which an oxide layer is produced on the surface of a base 

material for functional purposes (e.g., corrosion resistance or 

electrical insulation) using a chromic acid solution. In chromic 

acid anodizing, the part to be anodized acts as the anode in 

the electrical circuit, and the chromic acid solution, with a 

concentration typically ranging from 50 to 100 grams per liter 

(g/L), serves as the electrolyte. 

 

(12) “Chromium electroplating or chromic acid anodizing tank” 

means the receptacle or container in which hard or decorative 

chromium electroplating or chromic acid anodizing occurs, 

along with the following accompanying internal and external 

tank components needed for chromium electroplating or 

chromic acid anodizing. These tank components include, but 

are not limited to, rectifiers fitted with controls to allow for 

voltage adjustments, heat exchanger equipment, and 

circulation pumps. 

 

(13) “Composite mesh-pad system” means an add-on air pollution 

control device typically consisting of several mesh-pad stages 

to remove particles. 

 

(14) “Decorative chromium electroplating” means the process by 

which a thin layer of chromium (typically 0.003 to 

2.5 micrometers) is electrodeposited on a base metal, plastic, 

or undercoating material to provide a bright surface with wear 

and tarnish resistance. In this process, the part(s) serves as 

the cathode in the electrolytic cell and the solution serves as 

the electrolyte. Typical current density applied during this 

process ranges from 540 to 2,400 Amperes per square meter 

(A/m2

) for total plating times ranging between 0.5 to 5 minutes. 

Effective Date: October 24, 2007
5 

(15) “Dragout” means fluid containing hexavalent chromium that 

adheres to parts when they are removed from a tank. 

(16) “Electroplating or anodizing bath” means the electrolytic 

solution used as the conducting medium in which the flow of 

current is accompanied by movement of metal ions for the 

purpose of electroplating metal out of the solution onto a 

workpiece or for oxidizing the base material. 

 

(17) “Emission limitation” means, for trivalent chromium plating, the 

concentration of total chromium allowed to be emitted 

expressed in milligrams per dry standard cubic meter 

(mg/dscm). For hexavalent chromium plating or anodizing, the 

allowable surface tension expressed in dynes per centimeter 

(dynes/cm) or the milligrams of hexavalent chromium per 

ampere-hour (mg/amp-hr) of electrical charge applied to the 

chromium electroplating or anodizing tank, or the 

concentration of chromium allowed to be emitted expressed in 

milligrams per dry standard cubic meter (mg/dscm). 

(18) “Enclosed hexavalent chromium electroplating tank” means a 

hard, decorative or chromic acid anodizing tank using a 

hexavalent chromium solution that is equipped with an 

enclosing hood and ventilated at half the rate or less than that 

of a ventilated open surface tank of the same surface area. 

(19) “Enclosed storage area” means any space or structure used to 

contain material that prevents its contents from being emitted 

into the atmosphere. This includes cabinets, closets or sheds 

designated for storage. 

(20) “Executive Officer” means the Executive Officer of the Air 

Resources Board, or his or her delegate.

(21) "Existing facility" means a facility that is in operation before 

October 24, 2007. 

 

(22) “Facility” means the major or area source at which chromium 

electroplating or chromic acid anodizing is performed and/or 

any source or group of sources or other contaminant-emitting 

activities which are located on one or more contiguous 

properties within the District, in actual physical contact or 

separated solely by a public roadway or other public 

right-of way, and are owned or operated by the same person 

(or by persons under common control), or an outer continental 

Effective Date: October 24, 2007
6 

shelf (OCS) source as determined in 40 CFR Section 55.2, as 

last amended September 2, 1997. 

 

(23) “Fiber-bed mist eliminator” means an add-on air pollution 

control device that removes particles from a gas stream 

through the mechanisms of inertial impaction and Brownian 

diffusion. 

 

(24) “Foam blanket” means the type of chemical fume suppressant 

that generates a layer of foam across the surface of a solution 

when current is applied to that solution. A foam blanket does 

not lower surface tension of a liquid. 

 

(25) “Fresh water” means water, such as tap water, that has not 

been previously used in a process operation or, if the water 

has been recycled from a process operation, it has been 

treated and meets the effluent guidelines for chromium 

wastewater. 

(26) “Fugitive dust” means any solid particulate matter that may 

contain hexavalent chromium that has the potential to become 

airborne by natural or man-made activities. “Fugitive dust” 

does not include particulate matter emitted from an exhaust 

stack. 

 

(27) “Hard chromium electroplating or industrial chromium 

electroplating” means a process by which a thick layer of 

chromium (typically greater than 1.0 micrometers) is 

electrodeposited on a base material to provide a surface with 

functional properties such as wear resistance, a low coefficient 

of friction, hardness, and corrosion resistance. In this process, 

the part serves as the cathode in the electrolytic cell and the 

solution serves as the electrolyte. The hard chromium 

electroplating process is performed at current densities 

typically ranging from 1,600 to 6,500 A/m2

 for total plating 

times ranging from 20 minutes to 36 hours depending upon 

the desired plate thickness. 

 

(28) “Hexavalent chromium” means the form of chromium in a 

valence state of +6. 

 

(29) “High Efficiency Particulate Arrestor (HEPA) filter” means 

filter(s) rated at 99.97 percent or more efficient in collecting 

particle sizes 0.3 micrometers. 

(30) "Initial startup" means the first time a new facility begins 

production or the first time a modified chromium plating or 

Effective Date: October 24, 2007
7 

anodizing tank begins operating at a modified facility. If such 

production or operation occurs prior to October 24, 2007, the 

date of "Initial Startup" is October 24, 2007. "Initial Startup" 

does not include operation solely for testing of equipment or 

subsequent startup of permit units following malfunction or 

shutdown. 

 

(31) “Large, hard chromium electroplating facility” means a facility 

that performs hard chromium electroplating and emits greater 

than or equal to 10 pounds per year (lbs/yr) controlled 

emissions of hexavalent chromium. 

 

(32) “Leak” means the release of chromium emissions from any 

opening in the emission collection system prior to exiting the 

emission control device. 

 

(33) “Major source” means any stationary source, or group of 

stationary sources located within a contiguous area and under 

common control, that emits, or has the potential to emit 

considering controls, in the aggregate, 10 tons per year or 

more of any hazardous air pollutant, or 25 tons per year or 

more of any combination of hazardous air pollutants. 

 

(34) “Maximum cumulative potential rectifier capacity” means the 

summation of the total installed rectifier capacity associated 

with the hard chromium electroplating tanks at a facility, 

expressed in amperes, multiplied by the maximum potential 

operating schedule of 8,400 hours per year and 0.7, which 

assumes that electrodes are energized 70 percent of the total 

operating time. The maximum potential operating schedule is 

based on operating 24 hours per day, 7 days per week, 

50 weeks per year. 

 

(35) “Mechanical fume suppressant” means any device, including 

but not limited to polyballs, that reduces fumes or mist at the 

surfaces of an electroplating or anodizing bath by direct 

contact with the surface of the bath. 

 

(36) “Medium, hard chromium electroplating facility” means a 

facility that performs hard chromium electroplating and emits 

greater than 2 pounds per year (lbs/yr) controlled emissions 

but less than 10 pounds per year (lbs/yr) controlled emissions 

of hexavalent chromium. 

 

Effective Date: October 24, 2007
8 

(37) “Modification” means either: 

 

(A) any physical change in, change in method of operation of, 

or addition to an existing permit unit that requires an 

application for a permit to construct and/or operate and 

results in an increase in hexavalent chromium emissions. 

Routine maintenance and/or repair shall not be considered 

a physical change. A change in the method of operation of 

equipment, unless previously limited by an enforceable 

permit condition, shall not include: 

1. an increase in the hours of operation; or 

2. a change in ownership of a facility; or 

3. an increase in the annual ampere-hours, unless such 

increase will cause a facility to be subject to a different 

requirement in Table 93102.4 of section 93102.4. 

 

(B) the addition of any new chromium plating or anodizing tank 

at an existing facility which increases hexavalent chromium 

emissions; or 

(C) the fixed capital cost of the replacement of components 

exceeding 50 percent of the fixed capital cost that would be 

required to construct a comparable new facility. 

(38) "Modified facility" means any facility which has undergone a 

modification. 

(39) "New facility" means any facility that begins initial operations 

on or after October 24, 2007. "New Facility" does not include 

the installation of a new chromium plating or anodizing tank at 

an existing facility or the modification of an existing facility. 

(40) “Operating parameter value” means a minimum or maximum 

value established for a control device or process parameter 

which, if achieved by itself or in combination with one or more 

other operating parameter values, determines that an owner or 

operator is in continual compliance with the applicable 

emission limitation or standard. 

(41) “Owner or Operator” means a person who is the owner or the 

operator of a facility performing hard chromium electroplating, 

decorative chromium electroplating, or chromic acid anodizing. 

 

Effective Date: October 24, 2007
9 

(42) “Packed-bed scrubber” means an add-on air pollution control 

device consisting of a single or double packed-bed that 

contains packing media on which the chromic acid droplets 

impinge. 

 

(43) “Permitting agency” means the local air pollution control or air 

quality management district. 

(44) “Person” shall have the same meaning as defined in Health 

and Safety Code section 39047. 

(45) “Responsible official” means one of the following: 

(A) For a corporation: A president, secretary, treasurer, or vice 

president of the corporation in charge of a principal 

business function, or any other person who performs 

similar policy or decision-making functions for the 

corporation, or a duly authorized representative of such 

person if the representative is responsible for the overall 

operation of one or more manufacturing, production, or 

operating facilities and either: 

1. The facilities employ more than 250 persons or have 

gross annual sales or expenditures exceeding $25 million 

(in second quarter 1980 dollars); or 

2. The delegation of authority to such representative is 

approved in advance by the Administrator. 

(B) For a partnership or sole proprietorship: a general partner 

or the proprietor, respectively. 

(C) For a municipality, state, Federal, or other public agency: 

either a principal executive officer or ranking elected 

official. For the purposes of this part, a principal executive 

officer of a Federal agency includes the chief executive 

officer having responsibility for the overall operations of a 

principal geographic unit of the agency (e.g., a Regional 

Administrator of the U.S. EPA). 

(D) For sources (as defined in this part) applying for or subject 

to a title V permit: "responsible official" shall have the 

same meaning as defined in 40 CFR Part 70 or federal title 

V regulations in this chapter (42 U.S.C. 7401, et seq.), 

whichever is applicable. 

 

Effective Date: October 24, 2007
10 

(46) “School under construction” means any property that meets 

any of the following conditions: 

(A) construction of a school has commenced; or 

(B) a CEQA Notice for the construction of a school has been 

issued; or 

(C) a school has been identified in an approved local 

government specific plan. 

(47) “Sensitive receptor” means any residence including private 

homes, condominiums, apartments, and living quarters; 

education resources such as preschools and kindergarten 

through grade twelve (k-12) schools; daycare centers; and 

health care facilities such as hospitals or retirement and 

nursing homes. A sensitive receptor includes long term care 

hospitals, hospices, prisons, and dormitories or similar live-in 

housing. 

(48) “Small, hard chromium electroplating facility” means a facility 

that performs hard chromium electroplating and emits less 

than or equal to 2 pounds per year (lbs/yr) controlled 

emissions of hexavalent chromium. 

(49) “Source” means any chromium electroplating or chromic acid 

anodizing operation and any equipment or materials 

associated with the selected associated air pollution control 

technique. 

(50) “Stalagmometer” means an instrument used to measure the 

surface tension of a solution by determining the mass of a 

drop of liquid by weighing a known number of drops or by 

counting the number of drops obtained from a given volume of 

liquid. 

(51) “Substantial use” of an Authority to Construct means one or 

more of the following: (A) the equipment that constitutes the 

source has been purchased or acquired; (B) construction 

activities, other than grading or installation of utilities or 

foundations, have begun and are continuing; or (C) a contract 

to complete construction of the source within one year has 

been entered into. 

 

(52) “Surface tension” means the property, due to molecular forces, 

that exists in the surface film of all liquids and tends to prevent 

liquid from spreading. 

Effective Date: October 24, 2007
11 

(53) “Tank” means the structure or receptacle containing the 

electroplating or anodizing bath. 

(54) “Tank operation” means the time in which current and/or 

voltage is being applied to a chromium electroplating tank or a 

chromic acid anodizing tank. 

 

(55) “Tensiometer” means an instrument used to measure the 

surface tension of a solution by determining the amount of 

force needed to pull a ring from the liquid surface. The 

amount of force is proportional to the surface tension. 

(56) “Trivalent chromium” means the form of chromium in a 

valence state of +3. 

(57) “Trivalent chromium process” means the process used for 

electrodeposition of a thin layer of chromium onto a base 

material using a trivalent chromium solution instead of a 

chromic acid solution. 

 

(58) “Weekly” means at least once every seven calendar days. 

(59) “Wetting agent” means the type of chemical fume suppressant 

that reduces the surface tension of a liquid. 

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. 

§93102.4 Requirements for Existing, Modified, and New Hexavalent 

Chromium Plating and Chromic Acid Anodizing Facilities. 

This section 93102.4 sets forth requirements that apply to all 

hexavalent chromium hard and decorative chromium 

electroplating and chromic acid anodizing facilities, except for 

facilities subject to section 93102.6 (i.e., facilities that perform 

electroplating using a trivalent chromium bath or are facilities 

with enclosed hexavalent chromium electroplating tanks). The 

requirements differ depending on whether a facility is an existing 

facility, a modified facility or a new facility. Additional 

requirements that apply to all facilities (i.e., all existing, modified, 

and new facilities) are contained in section 93102.5, sections 

93102.7 through 93102.14 and section 93102.16. 

Subsection (a) contains the requirements to reduce hexavalent 

chromium emissions that were in effect before October 24, 

2007. The limits in subsection (a) shall remain in effect for a 

Effective Date: October 24, 2007
12 

facility until the limits in subsection (b) become effective. Once 

the limits in subsection (b) become effective for an individual 

facility the limits in subsection (a) no longer apply. 

The limits in subsection (b) are phased in depending on the 

amount of annual permitted ampere-hours and the distance to 

the nearest sensitive receptor. Depending on the facility, limits 

in subsection (b) become effective on April 24, 2008, October 

24, 2009, October 24, 2010, or October 24, 2011. 

(a) Requirements that Apply to Existing Hexavalent Chromium 

Electroplating and Chromic Acid Anodizing Facilities. 

An existing facility is a facility that is in operation before 

October 24, 2007. 

In addition to the limits specified in this subsection (a) all facilities 

(i.e., all existing, modified, and new facilities) must comply with the 

applicable provisions contained in section 93102.5, sections 

93102.7 through 93102.14, and section 93102.16. 

(1) Limits that Apply to Existing Hard Chromium Electroplating 

Facilities Until the Limits in subsection 93102.4(b) Become 

Effective.

During tank operation, each owner or operator of an existing, 

facility shall control hexavalent chromium emissions 

discharged to the atmosphere from that facility by reducing the 

hexavalent chromium emissions from the add-on air pollution 

control device(s) serving the electroplating tank(s) as identified 

below. 

Effective Date: October 24, 2007
13 

(A) Limits that Apply Until the Limits in subsection 93102.4(b) 

Become Effective for Existing Hard Chromium 

Electroplating Facilities that Began Operations on or before 

December 16, 1993. 

Requirement 

≤ 60 million 

amp-hrs2

> 60 million amp-hrs2

Facility Size Controlled 

Emissions1

(lbs/yr) 

 Option 1 Option 23

Large ≥ 10 lbs/yr ≤ 0.006 

mg/amp-hr 

≤ 0.006 

mg/amp-hr 

≤ 0.006 

mg/amp-hr 

Medium < 10 lbs/yr but 

> 2 lbs/yr 

≤ 0.03 

mg/amp-hr 

≤ 0.006 

mg/amp-hr 

≤ 0.03

mg/amp-hr 

and 0.015 

mg/dscm 

Small ≤ 2 lbs/yr ≤ 0.15 

mg/amp-hr 

≤ 0.03 

mg/amp-hr 

≤ 0.15 

mg/amp-hr 

and 0.015 

mg/dscm 

1

 combined hexavalent or total chromium emissions from hard chromium plating 

operations 

2

 maximum cumulative potential rectifier capacity or usage limit 

3

 “Option 2” is an alternative emission limitation for small and medium facilities 

 that elect to demonstrate compliance with both a mg/amp-hr and a mg/dscm 

 requirement 

(B) Limits that Apply Until the Limits in subsection 93102.4(b) 

Become Effective for Existing Hard Chromium 

Electroplating Facilities that Began Operations after 

December 16, 1993, and Before October 24, 2007. 

Facility Size Controlled Requirement 

Emissions1 (lbs/yr) ≤ 60 million amphrs2

 > 60 million amphrs2

Large ≥ 10 lbs/yr ≤ 0.006 mg/amphr ≤ 0.006 

mg/amp-hr 

Medium/ Small < 10 lbs/yr ≤ 0.03 mg/amp-hr ≤ 0.006 mg/amp-hr 

1 combined hexavalent or total chromium emissions from hard chromium plating 

operations 

2

 maximum cumulative potential rectifier capacity or usage limit 

(C) Special Provisions that Apply for some Hard Chromium 

Electroplating Facilities Using Less than or Equal to 

500,000 Ampere-hours per Year Until the Limits in 

subsection 93102.4(b) Become Effective. 

Effective Date: October 24, 2007
14 

The permitting agency may approve, on a case-by-case 

basis, alternative standards for hard chromium 

electroplating facilities using less than or equal to 500,000 

ampere-hours per year. The operation must have been 

constructed on or before December 16, 1993. At a 

minimum, the facility must use a chemical fume 

suppressant containing a wetting agent to lower the 

surface tension of the plating bath to at least 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 meet the criteria 

specified in section 93102.8 and the surface tension shall 

be maintained below the value specified in Table 93102.8. 

The permitting agency may require additional emission 

reduction techniques as necessary to reduce the public 

health impact of emissions from the operation. The owner 

or operator must comply with the applicable parameter 

monitoring [section 93102.9], recordkeeping 

[section 93102.12], and reporting [section 93102.13] 

requirements. If an emission reduction technique not 

identified in this rule is used, the owner or operator must 

submit a plan to the permitting agency describing the 

alternative technique and identifying appropriate 

monitoring, recordkeeping, and reporting requirements. 

The permitting agency, with U.S. EPA concurrence, shall 

approve this plan if equivalent results are obtained. Upon 

approval, the requirements identified in the plan shall be 

the applicable requirements under this regulation. 

(2) Requirements that Apply to Existing Hexavalent Decorative 

Chromium Electroplating and Chromic Acid Anodizing 

Facilities Until the Limits in subsection 93102.4(b) Become 

Effective.

During tank operation, each owner or operator of an existing 

decorative hexavalent chromium electroplating or chromic acid 

anodizing facility shall control hexavalent chromium emissions 

discharged to the atmosphere by meeting either of the 

requirements identified below. 

Effective Date: October 24, 2007
15 

Method of Compliance Requirement 

1. add-on air pollution control 

equipment, or chemical fume 

suppressants, or mechanical fume 

suppressants (i.e. polyballs) 

≤ 0.01 milligrams per dry standard 

cubic meter of air (mg/dscm) 

(4.4x10-6 gr/dscf) 

2. chemical fume suppressants 

containing a wetting agent 1 

≤ 45 dynes per centimeter (dynes/cm) 

(3.1x10-3 pound-force per foot [lbF/ft]) 

1

Effective April 24, 2008, the chemical fume suppressant used by the facility must meet 

the criteria specified in section 93102.8 and the surface tension shall be maintained 

below the value specified in Table 93102.8. 

(b) Limits that Apply to All Existing Hexavalent Hard and Decorative 

Chromium Electroplating and Chromic Acid Anodizing Facilities 

After October 24, 2007.

(1) During tank(s) operation, each owner or operator of an 

existing hexavalent chromium facility shall control hexavalent 

chromium emissions discharged to the atmosphere by 

meeting the requirements identified below. 

 

Table 93102.4: Hexavalent Chromium Emission Limits for Existing Tanks 

Sensitive 

Receptor 

Distance 1 

Annual 

Permitted 

AmpereHours 

Emission Limitation Effective Date 

≤ 330 feet ≤ 20,000 

Use Chemical Fume Suppressants as 

specified in section 93102.8 2 April 24, 2008 

≤ 330 feet > 20,000 and 

≤ 200,000 

0.0015 milligrams/ampere-hour as 

measured after add-on air pollution 

control device(s) 

October 24, 2010 

≤ 330 feet > 200,000 

0.0015 milligrams/ampere-hour as 

measured after add-on air pollution 

control device(s) 3 

October 24, 2009 

> 330 feet ≤ 50,000 

Use Chemical Fume Suppressant as 

specified in section 93102.8 2 April 24, 2008 

> 330 feet 

> 50,000 and 

≤ 500,000 0.0015 milligrams/ampere-hour October 24, 2011 

> 330 feet > 500,000 

0.0015 milligrams/ampere-hour as 

measured after add-on air pollution 

control device(s) 3 

October 24, 2009 

1

 Distance shall be measured as specified in section 93102.4(b)(2)(A). 

2

 Alternatively, a facility may install an add-on air pollution control device(s) that controls 

emissions to below 0.0015 milligrams per ampere-hour. 

3

 When annual emissions exceed 15 grams a site specific risk analysis must be conducted 

by the owner or operator in accordance with the permitting agency’s procedures, unless a 

site specific risk analysis has already been conducted and approved by the permitting 

agency. The analysis shall be submitted to the permitting agency. 

Effective Date: October 24, 2007
16 

(2) Demonstrating Compliance with the Emission Limitation in 

Table 93102.4 

(A) Distance to the nearest sensitive receptor shall be submitted 

to the permitting agency. The measurement shall be 

provided to the permitting agency within 30 days of 

October 24, 2007. 

1. For facilities that do not have an add-on air pollution 

control device on October 24, 2007, the measurement 

shall be the distance, rounded to the nearest foot, from 

the edge of the hexavalent chromium plating or anodizing 

tank nearest the sensitive receptor to the property line of 

the nearest sensitive receptor that exists on October 24, 

2007. 

2. For facilities with an add-on air pollution control device on 

October 24, 2007, the measurement shall be the 

distance, rounded to the nearest foot, from the centroid of 

the stack to the property line of the nearest sensitive 

receptor that exists on October 24, 2007. 

(B) Facilities located within 330 feet of a sensitive receptor and 

with annual permitted ampere-hours greater than 20,000, 

and facilities beyond 330 feet of a sensitive receptor with 

more than 500,000 annual permitted ampere-hours must 

use an add-on air pollution control device(s) to control 

hexavalent chromium emissions and demonstrate 

compliance with the emission limitation of 

0.0015 milligrams/ampere-hour as measured after the 

add-on air pollution control device. 

(3) Requirements for Facilities Demonstrating Compliance by an 

Alternative Method or Methods 

As provided in Health and Safety Code Section 39666(f), the 

owner or operator of a facility may submit to the permitting 

agency an alternative method, or methods, that will achieve an 

equal, or greater amount of reduction in hexavalent chromium 

emissions and an equal, or greater reduction in risk than 

would be achieved by direct compliance with the requirements 

of section 93102.4(b)(1) and (b)(2). 

(A) The information contained in Appendix 9 of section 

93102.16 must be submitted to the permitting agency. 

 

Effective Date: October 24, 2007
17 

(B) To be approved by the permitting agency the owner or 

operator must demonstrate that the alternative method(s) 

is enforceable, provides an equal, or greater hexavalent 

chromium emission reduction, and provides an equal, or 

greater risk reduction than would direct compliance with 

the requirements of section 93102.4(b)(1) and (b)(2). 

(C) Upon approval of the method(s) the owner or operator 

must implement the approved method(s) within the time 

periods specified of section 93102.4(b)(1). 

(D) A facility operating under an approved alternative 

method(s) must comply with the requirements set forth in 

sections 93102.5, 93102.7, and 93102.9 through 93102.14, 

and 93102.16. 

(c) Requirements for Modified Hexavalent Chromium Electroplating or 

Chromic Acid Anodizing Facilities. 

(1) During tank operation, each owner or operator of a modified 

facility shall upon initial start-up control hexavalent chromium 

emissions discharged to the atmosphere from that facility by 

reducing the hexavalent chromium emissions from the 

electroplating or anodizing tank(s) by: 

(A) Using an add-on air pollution device(s) to control 

hexavalent chromium emissions, and 

(B) Meeting an emission limit of 0.0015 milligrams per 

ampere-hour or less. 

(2) Prior to initial start-up of a modified facility, when annual 

emissions of hexavalent chromium are expected to exceed 

15 grams per year, the owner or operator shall conduct a site 

specific risk analysis in accordance with the permitting 

agency’s procedures. The analysis shall be submitted to the 

permitting agency. 

(3) A facility is not required to comply with section 

93102.4(c)(1)(A) if the facility is implementing an alternative 

method or methods that have been approved by the permitting 

agency as provided in section 93102.4(b)(3) and Health and 

Safety Code section 39666(f). 

(d) Requirements for New Hexavalent Chromium Electroplating and 

Chromic Acid Anodizing Facilities Beginning October 24, 2007. 

Effective Date: October 24, 2007
18 

(1) No person shall operate a new facility unless it is located 

outside of an area that is zoned for residential or mixed use 

and is located, as determined by the permitting agency, at 

least 1,000 feet from (A) the boundary of any area that is 

zoned for residential or mixed use, or (B) any school or school 

under construction. 

(A) A new facility shall be deemed to meet the requirements 

specified in this subsection (d)(1) if one of the following 

criteria is met, even if the facility does not meet the 

requirement at the time of initial startup (e.g., because of a 

zoning change that occurs after the authority to construct is 

issued): 

1. The requirements specified in this subsection (d)(1) are 

met at the time it is issued an authority to construct by 

the permitting agency, and substantial use of the 

authority to construct takes place within one year after it 

is issued; or 

2. The requirements specified in this subsection (d)(1) are 

met at the time it is issued an authority to construct by 

the permitting agency, and substantial use of the 

authority to construct takes place before any zoning 

change occurs that affects the operation’s ability to meet 

the requirement at the time of initial startup. 

(2) During tank operation, each owner or operator of a new facility 

shall control hexavalent chromium emissions discharged to 

the atmosphere from that facility by reducing the hexavalent 

chromium emissions from the electroplating or anodizing 

tank(s) by installing a HEPA add-on air pollution control 

device. The measured emission rate of hexavalent chromium 

shall be no more than 0.0011 milligrams per ampere-hour as 

measured after the HEPA add-on air pollution control device. 

(3) Prior to initial start-up the owner or operator of each new 

facility shall conduct a site specific risk analysis in accordance 

with the permitting agency’s procedures. The analysis shall 

be submitted to the permitting agency. 

(4) Prior to initial startup, each new facility shall demonstrate to 

the permitting agency that the new facility meets the 

requirements specified in this subsection (d) of this section 

93102.4. 

Effective Date: October 24, 2007
19 

(5) A facility is not required to comply with the requirement in 

section 93102.4(d)(2) to install a HEPA add-on air pollution 

control device if the facility is implementing an alternative 

method or methods that have been approved by the permitting 

agency as provided in section 93102.4(b)(3) and Health and 

Safety Code section 39666(f). 

 

(e) Notification Requirements for New and Modified Facilities. 

(1) Notification of Construction Reports. 

(A) No person may construct or modify a facility, such that it 

becomes a facility subject to sections 93102 to 93102.16, 

without submitting a notification of construction or 

modification to the permitting agency and receiving 

approval in advance to construct or modify the facility. 

(B) The contents of the Notification of Construction Report 

shall include the information contained in Appendix 4. 

(2) Alternative Notification Requirements: Instead of complying 

with the requirements in subpart (e)(1)(A) of this subsection, a 

facility may fulfill these requirements by complying with the 

permitting agency's “New Source Review” requirements, 

provided similar information is obtained. 

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. 

§ 93102.5 Requirements that Apply to Existing, Modified, and New 

Hexavalent Chromium Plating or Chromic Acid Anodizing 

Facilities Beginning October 24, 2007. 

Each owner or operator of a hexavalent chromium plating or 

chromic acid anodizing facility shall comply with the following 

requirements on or after the dates specified below: 

(a) Removal of Add-on Pollution Control Device(s). No add-on air 

pollution control device(s) installed before October 24, 2007, shall 

be removed or rendered inoperable unless it is replaced by an addon air pollution control device(s) meeting an emission rate of 

0.0015 milligrams per ampere-hour or less as measured after the 

add-on air pollution control device or unless the facility is operating 

under an approved alternative method as provided in 

section 93102.4(b)(3) and Health and Safety Code section 

39666(f). 

Effective Date: October 24, 2007
20 

(b) Environmental Compliance Training. No later than October 24, 

2009, and within every two years thereafter, the owner or operator 

of a facility shall ensure that chromium plating or chromic acid 

anodizing operations are conducted under the direction of the 

owner or operator or current employee who is onsite and who has 

completed the Air Resources Board (ARB) Compliance Assistance 

Training Course pertaining to chromium plating and chromic acid 

anodizing. 

(1) On or after October 24, 2009, environmental compliance and 

recordkeeping required by this ATCM shall be conducted only 

by persons who completed an ARB Compliance Assistance 

Training Course. 

(2) In the event that all persons who have completed the ARB 

training class are no longer associated with a facility, the 

owner or operator may be responsible for environmental 

compliance and recordkeeping required by this ATCM for a 

period of time not to exceed two years. The owner or operator 

shall ensure that as soon as practicable, but not longer than 

two years, personnel complete the training specified in 

subsection 93102.5(b). 

(3) Environmental compliance training conducted by the South 

Coast Air Quality Management District pursuant to Rule 1469 

shall fulfill the requirements of this subpart. 

(4) Nothing in this subsection 93102.5(b) shall absolve an owner 

or operator from complying with sections 93102-93102.16. 

(c) Housekeeping Requirements. Effective April 24, 2008, 

housekeeping practices shall be implemented to reduce potential 

fugitive emissions of hexavalent chromium. At a minimum, the 

following practices shall be implemented: 

(1) Chromic acid powder or flakes, or other substances that may 

contain hexavalent chromium, shall be stored in a closed 

container in an enclosed storage area; 

(2) Chromic acid powder or flakes shall be transported from an 

enclosed storage area to the electroplating or anodizing 

bath(s) in a closed container; 

(3) Any liquid or solid material that may contain hexavalent 

chromium that is spilled shall be cleaned up or contained 

within one hour after being spilled. 

Effective Date: October 24, 2007
21 

(4) Dragout from the tank(s) shall be minimized by implementing 

the following practices: 

(A) Facilities with automated lines. Drip trays shall be installed 

between tanks so that the liquid does not fall through the 

space between tanks. Trays shall be placed such that the 

liquid is returned to the tank(s). 

(B) Facilities without automated lines.

1. Each electroplated or anodized part must be handled so 

that chromic acid is not dripped outside the electroplating 

tank. 

2. Each facility spraying down parts over the electroplating 

or anodizing tank(s) to remove excess chromic acid shall 

have a splash guard installed at the tank to minimize 

overspray and to ensure that any hexavalent chromium 

laden liquid is returned to the electroplating or anodizing 

tank. 

(5) Surfaces within the enclosed storage area, open floor area, 

walkways around the electroplating or anodizing tank(s), or 

any surface potentially contaminated with hexavalent 

chromium, that accumulates or potentially accumulates dust 

shall be cleaned at least once every seven days in one or 

more of the following manner: HEPA vacuumed, or hand 

wiped with a damp cloth, or wet mopped, or otherwise cleaned 

as approved by the permitting agency, or shall be maintained 

with the use of non-toxic chemical dust suppressants. 

(6) Buffing, grinding, or polishing areas within a facility shall be 

separated from the electroplating or anodizing operation by 

installing a physical barrier. The barrier may take the form of 

plastic strip curtains. 

(7) Chromium or chromium-containing wastes generated from 

housekeeping activities shall be stored, disposed of, 

recovered, or recycled using practices that do not lead to 

fugitive dust and in accordance with hazardous waste 

requirements. 

NOTE: Authority cited: Sections 39600, 39601, 39650, 39658, 39659, 39666, and 41511, 

Health and Safety Code. Reference: Sections 39650, 39658, 39659, 39665, 39666, and 41511, 

Health and Safety Code; and 40 CFR Part 63 Subpart N. 

Effective Date: October 24, 2007
22 

§ 93102.6 Special Provisions that Apply Only to Facilities that 

Perform Electroplating Using a Trivalent Chromium Bath or 

Enclosed Hexavalent Chromium Electroplating Tanks. 

(a) Provisions that Apply to All Facilities that Perform Electroplating 

Using a Trivalent Chromium Bath. 

(1) During tank operation, each owner or operator of an existing, 

modified, or new facility shall control total chromium emissions 

discharged to the atmosphere by meeting either of the 

requirements identified below. 

 

Method of Compliance Requirement 

add-on air pollution control equipment, 

or chemical fume suppressants, or 

mechanical fume suppressants (i.e. 

polyballs) 

≤0.01 mg/dscm (4.4x10-6 gr/dscf) 

chemical fume suppressants containing 

a wetting agent 

use wetting agent as bath ingredient 

and comply with recordkeeping and 

reporting provisions of sections 

93102.12(i) and 93102.13(e). 

(2) New facilities that perform electroplating using a trivalent 

chromium bath must conduct a facility wide site specific risk 

analysis in accordance with the permitting agency’s 

procedures. The analysis shall be submitted to the permitting 

agency. 

(3) An owner or operator that performs electroplating using a 

trivalent chromium bath and complying through use of a 

chemical fume suppressant containing a wetting agent shall 

not be required to comply with the requirements of sections 

93102.4, 93102.5, 93102.7, 93102.8, 93102.9(b) through (f), 

93102.10, 93102.11, 93102.12(a) through (f), and 

93102.12(h). 

(4) An owner or operator that performs electroplating using a 

trivalent chromium bath and complying with the 

≤ 0.01 mg/dscm limit shall not be required to comply with the 

requirements of sections 93102.4, 93102.5, and 93102.8. 

(5) If a facility has hexavalent chromium tanks in addition to 

trivalent chromium tanks, the hexavalent chromium tanks must 

comply with all of the requirements of the ATCM relating to 

hexavalent chromium facilities that do not have enclosed 

tanks. 

Effective Date: October 24, 2007
23 

(b) Requirements for Enclosed Hexavalent Chromium Electroplating 

Tanks. 

(1) The owner or operator of a hexavalent chromium 

electroplating facility with enclosed hexavalent chromium 

plating tank(s) shall control hexavalent chromium emissions 

from the electroplating tank(s) by: 

(A) Achieving a hexavalent chromium emission limitation of 

0.015 mg/dscm from each tank as measured after the addon air pollution control device(s); or 

(B) Using a chemical fume suppressant specified in section 

93102.8, and maintaining the surface tension of the plating 

bath solution at a value specified in section 93102.8; or 

(C) Not allowing the mass rate of the total chromium to exceed 

the maximum allowable mass emission rate determined by 

using the calculation procedure specified in Appendix 7. 

(2) The owner or operator of an existing facility that has only 

enclosed hexavalent chromium plating tank(s) must comply 

with all requirements of this ATCM except for the requirements 

set forth in section 93102.4. 

(3) If a facility has hexavalent chromium plating tanks that are not 

enclosed in addition to enclosed hexavalent chromium tanks, 

the hexavalent chromium tanks that are not enclosed must 

comply with all the requirements of the ATCM related to 

hexavalent chromium facilities that do not have enclosed 

tanks. 

(4) New facilities with enclosed hexavalent chromium plating 

tanks must comply with section 93102.4(d)(1). 

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. 

§ 93102.7 Performance Test Requirements and Test Methods. 

(a) Performance test requirements. 

(1) The following hexavalent chromium facilities must conduct a 

performance test to demonstrate compliance with the 

hexavalent chromium emission rate as specified in section 

93102.4: 

Effective Date: October 24, 2007
24 

(A) Existing facilities demonstrating compliance with a 

milligrams per ampere-hour emission limitation specified in 

Table 93102.4. 

(B) Facilities that undergo a modification after 

October 24, 2007. 

(C) New hexavalent chromium facilities complying with section 

93102.4(d)(2) or section 93102.6(b)(1)(A) or (C). 

(D) Facilities that submit an alternative compliance method or 

methods for approval as provided in section 93102.4(b)(3). 

(2) New or modified facilities must conduct the performance test 

required by this section 93102.7 no later than 60 days after 

initial start-up. 

(3) Existing facilities must conduct the performance test required 

by this section 93102.7 no later than the applicable effective 

date contained in Table 93102.4. 

(4) The performance test must be conducted using one of the 

approved test methods specified in subsection 93102.7(c). 

The hexavalent chromium emission rate shall be multiplied by 

the facility annual permitted ampere-hour usage to determine 

the annual emissions of hexavalent chromium for the facility. 

(5) Facilities do not need to conduct a performance test if the 

facility’s annual permitted ampere-hour usage is ≤20,000 and 

the facility is located within 330 feet of a sensitive receptor or 

the facility’s annual permitted ampere-hour usage is ≤50,000 

and the facility is located more than 330 feet from a sensitive 

receptor that exists on October 24, 2007, and the facility is 

using chemical fume suppressants. 

(6) Trivalent chromium plating facilities meeting the mg/dscm 

emission rate specified in section 93102.6(a)(1) must conduct 

a performance test to demonstrate compliance with the total 

chromium emission rate. 

(b) Use of previously conducted performance test. 

A performance test conducted after January 1, 2000 may be used 

to satisfy the requirements of this section 93102.7, so long as all of 

the following criteria are met: 

Effective Date: October 24, 2007
25 

(1) The test demonstrated compliance with the applicable 

hexavalent chromium emission rate specified in Table 93102.4 

of section 93102.4 for hexavalent chromium plating or chromic 

acid anodizing facilities, or 0.01 mg/dscm or less total 

chromium emission rate for trivalent chromium plating 

facilities, or 0.015 mg/dscm hexavalent chromium emission 

rate for facilities with enclosed hexavalent chromium 

electroplating tanks complying with section 93102.6(b)(1)(A), 

and 

 

(2) The performance test was approved by the permitting agency, 

and 

(3) The test is representative of the method to control emissions 

currently in use as of October 24, 2007, and 

(4) The performance test was conducted using one of the 

approved test methods specified in subsection 93102.7(c). 

(c) Approved test methods 

(1) Emissions testing shall be conducted with a minimum of three 

test runs in accordance with one of the following test methods: 

 

(A) California Air Resources Board Test Method 425, last 

amended July 28, 1997, (section 94135, Title 17, California 

Code of Regulations (CCR); or 

(B) U.S. EPA Method 306, (40 CFR 63 Appendix A) with or 

without hexavalent chromium option (Method 306, Section 

2.2.3) provided that, if the total chromium option is used, 

the total chromium measurement must be assumed to be 

all hexavalent chromium; or 

(C) South Coast Air Quality Management District 

Method 205.1. 

(2) Smoke Test to Verify the Seal Integrity of Covers Designed to 

Reduce Chromium Emissions from Electroplating and 

Anodizing Tanks (See Appendix 5). 

(3) Surface tension using a tensiometer shall be measured in 

accordance with U.S. EPA Method 306B (40 CFR 63 

Appendix A). Surface tension using a stalagmometer shall be 

measured using the procedure set forth in Appendix 8, or an 

alternative procedure approved by the permitting agency. 

Effective Date: October 24, 2007
26 

(d) Pre-Test protocol. Facilities subject to the provisions of section 

93102.7(a) must submit a pre-test protocol to the permitting agency 

at least 60 days prior to conducting a performance test. The pretest protocol shall include the performance test criteria of the end 

user and all assumptions, required data, and calculated targets for 

testing the source target chromium concentration, the preliminary 

chromium analytical data, and the planned sampling parameters. 

In addition, the pre-test protocol shall include information on 

equipment, logistics, personnel, and other resources necessary for 

an efficient and coordinated test. 

(e) Test all emission points. Each emission point subject to the 

requirements of this regulation must be tested unless a waiver is 

granted by U.S. EPA and approved by the permitting agency. 

NOTE: Authority cited: Sections 39600, 39601, 39650, 39658, 39659, 39666, and 41511, 

Health and Safety Code. Reference: Sections 39650, 39658, 39659, 39665, 39666, and 41511, 

Health and Safety Code; and 40 CFR Part 63 Subpart N. 

§ 93102.8 Chemical Fume Suppressants. 

Chemical fume suppressants used to comply with sections 

93102.4 and 93102.6(b)(1)(B) shall meet the criteria specified in 

this section 93102.8.

(a) One or more of the chemical fume suppressants listed in 

Table 93102.8 shall be used to reduce the surface tension of the 

electroplating or anodizing bath(s) below the surface tension value 

listed in Table 93102.8. The surface tension value may be 

measured using either a stalagmometer or a tensiometer. 

Table 93102.8: Chemical Fume Suppressants Approved for Use at 

Specified Surface Tensions 

Chemical Fume 

Suppressant and 

Manufacturer 

Stalagmometer 

Measured 

Surface Tension 

(dynes/centimeter) 

Tensiometer 

Measured Surface 

Tension 

(dynes/centimeter)

Benchbrite CR 1800®

Benchmark Products < 40 < 35 

Clepo Chrome®

MacDermid < 40 < 35 

Fumetrol 140®

Atotech U.S.A. < 40 < 35 

HCA-6.2®

Hunter Chemical LLC < 32 < 28 

HCA-4®

Hunter Chemical LLC < 32 < 28 

Effective Date: October 24, 2007
27 

(b) Alternative chemical fume suppressants. Chemical fume 

suppressants not listed in Table 93102.8 may be used upon 

approval by the Executive Officer. The Executive Officer shall 

approve the use of an alternative chemical fume suppressant if the 

following criteria are met: 

(1) The chemical fume suppressant has been performance tested 

under conditions that are representative of normal operations 

in a hexavalent chromium electroplating or anodizing bath and 

demonstrated to reduce the hexavalent chromium emissions 

below 0.01 milligrams per ampere hour; and 

(2) In the performance testing, the hexavalent chromium emission 

rate of 0.01 milligrams per ampere-hour was achieved under 

conditions in which the surface tension did not exceed 

45 dynes/cm, as measured by a stalagmometer or 

35 dynes/cm, as measured by a tensiometer. 

(c) A chemical fume suppressant that is listed in subsection 93102.8(a) 

or that has been approved under subsection 93102.8(b) may no 

longer be used if the Executive Officer determines that the chemical 

fume suppressant is no longer able to reduce the hexavalent 

chromium emission rate below 0.01 milligrams per ampere-hour 

under conditions in which the surface tension does not exceed 

45 dynes/cm, as measured by a stalagmometer or 35 dynes/cm, as 

measured by a tensiometer. 

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. 

§ 93102.9 Parameter Monitoring Requirements. 

(a) Ampere-hours. Each electroplating or anodizing tank, or group of 

electroplating or anodizing 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 control device such as a 

composite mesh-pad (CMP), packed-bed scrubber (PBS), a 

CMP/PBS, fiber-bed mist eliminator, and a High Efficiency 

Particulate Arrestor (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 

Effective Date: October 24, 2007
28 

the value established during the performance 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 performance 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 

performance 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 electroplating, or anodizing 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 8 of section 93102.16 or a procedure 

approved by the permitting agency, or with a tensiometer 

using U.S. EPA Method 306B (40 CFR 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 chromium electroplating or chromic acid 

anodizing tank bath(s) with either a stalagmometer using the 

procedure in Appendix 8 of section 93102.16 or a procedure 

approved by the permitting agency, or with a tensiometer 

using U.S. EPA Method 306B (40 CFR part 63, Appendix A). 

If the surface tension is measured with a stalagmometer the 

surface tension shall be maintained below 

Effective Date: October 24, 2007
29 

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 93102.4(b)(3) and using chemical fume 

suppressants as all or partial control of hexavalent chromium 

emissions must measure and monitor the surface tension of 

the electroplating or anodizing bath daily. The surface tension 

must be maintained at or below the surface tension measured 

during the performance test. 

(e) Foam blanket thickness. The owner or operator shall monitor the 

foam blanket thickness across the surface of the electroplating, or 

anodizing bath(s). The foam blanket thickness shall be maintained 

consistent with the requirements established during the 

performance 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 electroplating, or anodizing bath(s) for coverage 

comparable to the coverage during the performance test daily. 

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. 

Effective Date: October 24, 2007
30 

§ 93102.10 Inspection and Maintenance Requirements. 

(a) Hexavalent chromium electroplating and chromic acid anodizing 

facilities shall comply with the applicable inspection and 

maintenance requirements listed in Table 93102.10. 

Table 93102.10 -- Summary of Inspection and Maintenance Requirements 

 

Control 

Technique/Equipment 

Inspection and Maintenance 

Requirements 

Frequency 

Composite mesh-pad 

(CMP) system, 

Packed-bed scrubber 

(PBS), or PBS/CMP 

1. Visually inspect device to ensure 

that there is proper drainage, no 

unusual chromic acid buildup on the 

pads, and/or packed beds and no 

evidence of chemical attack that affects 

the structural integrity of the device. 

1. 1/quarter. 

2. Visually inspect back portion of the 

mesh pad closest to the fan to ensure 

there is no breakthrough of chromic 

acid mist,and/or back portion of the 

chevron mist eliminator to ensure it is 

dry and there is no breakthrough of 

chromic acid mist. 

2. 1/quarter. 

3. Visually inspect ductwork from tank 

to the control device to ensure there 

are no leaks. 

3. 1/quarter. 

4. Perform washdown and/or add fresh 

makeup water to the packed bed when 

it is needed. 

4. Per 

manufacturer. 

Fiber-bed mist 

eliminatorA 

Same as number 1 for CMP/PBS. 1. 1/quarter. 

Same as number 3 for CMP/PBS. 2. 1/quarter. 

Same as number 4 for CMP/PBS. 3. Per 

manufacturer. 

High Efficiency 

Particulate Arrestor 

(HEPA) filter 

1. Look for changes in the pressure 

drop. 

1. 1/week. 

2. Replace HEPA filter. 2. Per 

manufacturer's 

specifications, 

or permitting 

agency's 

requirement. 

Effective Date: October 24, 2007
31 

Chromium tank covers

[facilities complying 

with subsection 

93102.6(b)] 

1. Drain the air-inlet (purge air) valves 

at the end of each day that the tank is 

in operation. 

1. 1/day. 

2. Visually inspect access door seals 

and membranes for integrity. 

2. 1/week. 

3. Drain the evacuation unit directly 

into the plating tank or into the rinse 

tanks (for recycle into the plating tank). 

3. 1/week. 

4. Visually inspect membranes for 

perforations using a light source that 

adequately illuminates the membrane 

(e.g., Grainger model No. 6X971 

Fluorescent Hand Lamp). 

4. 1/month. 

5. Visually inspect all clamps for proper 

operation; replace as needed. 

5. 1/month. 

6. Clean or replace filters on 

evacuation unit. 

6. 1/month. 

7. Visually inspect piping to, piping 

from, and body of evacuation unit to 

ensure there are no leaks and no 

evidence of chemical attack. 

7. 1/quarter. 

8. Replace access door seals, 

membrane evacuation unit filter, and 

purge air inlet check valves in 

accordance with the manufacturer's 

recommendations. 

8. Per 

manufacturer. 

Pitot tube Backflush with water, or remove from 

the duct and rinse with fresh water. 

Replace in the duct and rotate 180 

degrees to ensure that the same zero 

reading is obtained. Check pitot tube 

ends for damage. Replace pitot tube if 

cracked or fatigued. 

1/quarter. 

Ampere-hour meter Install and maintain per manufacturer's 

specifications. 

Per 

manufacturer. 

Stalagmometer/ 

Tensiometer 

Calibrate and maintain per 

manufacturer’s specifications. 

Per 

manufacturer. 

A Inspection and maintenance requirements for the control device installed 

upstream of the fiber-bed mist eliminator to prevent plugging do not apply as long 

as the inspection and maintenance requirements for the fiber-bed unit are 

followed. 

(b) Add-on air pollution control device(s) that is custom designed for a 

specific operation shall develop operating and maintenance 

requirements. The requirements shall be submitted to the 

Effective Date: October 24, 2007
32 

permitting agency for review and approval. The requirements and 

frequency of inspection must be sufficient to ensure compliance. 

NOTE: Authority cited: Sections 39600, 39601, 39650, 39658, 39659, 39666, and 41511, 

Health and Safety Code. Reference: Sections 39650, 39658, 39659, 39665, 39666, and 41511, 

Health and Safety Code; and 40 CFR Part 63 Subpart N. 

§ 93102.11 Operation and Maintenance Plan (O & M Plan) 

Requirements.

(a) Prepare the O & M plan. The owner or operator subject to the 

inspection and maintenance requirements of subsection 

93102.10(a) and (b) shall prepare an operation and maintenance 

plan. For major sources, the plan shall be incorporated by 

reference into the source's title V permit. The plan shall incorporate 

the inspection and maintenance requirements for that device, or 

monitoring equipment, as identified in Table 93102.10, or 

subsection 93102.10(b) of this ATCM and include the following 

elements: 

(1) A standardized checklist to document the operation and 

maintenance of the facility, the add-on air pollution control 

device, and the process and control system monitoring 

equipment; and 

(2) Procedures to be followed to ensure that equipment is 

properly maintained. [To satisfy the inspection and 

maintenance requirements of this subsection, the owner or 

operator may use applicable standard operating procedure 

(SOP) manuals, Occupational Safety and Health 

Administration (OSHA) plans, or other existing plans, provided 

the alternative plans meet the requirements of this 

subsection.] 

(b) Retain the O & M plan. The owner or operator shall keep the 

written operation and maintenance plan on record after it is 

developed to be made available for inspection, upon request, 

during normal working hours. 

(c) Changes to the O & M plan. Any changes made by the owner or 

operator should be documented in an addendum to the plan. In 

addition, the owner or operator shall keep previous (i.e., 

superseded) versions of the operation and maintenance plan on 

record to be made available for inspection, upon request, during 

normal working hours, for a period of 5 years after each revision to 

the plan. 

Effective Date: October 24, 2007
33 

(d) Revisions to the O & M plan to address breakdowns. The 

operation and maintenance plan shall be revised as necessary to 

minimize breakdowns. 

NOTE: Authority cited: Sections 39600, 39601, 39650, 39658, 39659, 39666, and 41511, 

Health and Safety Code. Reference: Sections 39650, 39658, 39659, 39665, 39666, and 41511, 

Health and Safety Code; and 40 CFR Part 63 Subpart N. 

§ 93102.12 Recordkeeping Requirements.

(a) Inspection records. The owner or operator shall maintain 

inspection records to document that the inspection and 

maintenance requirements of section 93102.10 and Table 

93102.10, and the provisions of the operation and maintenance 

plan required by section 93102.11 have been met. The record can 

take the form of a checklist and shall identify: 

(1) the device inspected, 

(2) the date and time of inspection, 

(3) a brief description of the working condition of the device during 

the inspection, 

(4) maintenance activities performed on the components of the air 

pollution control system (i.e. duct work replacement, filter pad 

replacement, fan replacement, etc), and 

(5) actions taken to correct deficiencies found during the 

inspection. 

(b) Performance test records. The owner or operator shall maintain 

test reports documenting the conditions and results of all 

performance tests. 

(c) Monitoring data records. The owner or operator shall maintain 

records of monitoring data required by section 93102.9 that are 

used to demonstrate compliance, including the date and time the 

data are collected. 

(1) Cumulative rectifier usage records. Record the actual 

cumulative rectifier usage expended during each month of the 

reporting period, and the total usage expended to date. 

(2) Pressure drop. The owner or operator shall record the 

pressure drop once a week. 

Effective Date: October 24, 2007
34 

(3) Inlet Velocity Pressure. The owner or operator shall record 

the inlet velocity pressure weekly. 

(4) Surface tension. 

(A) Facilities required to use a chemical fume suppressant as 

specified in section 93102.8 to comply with section 

93102.4. 

The owner or operator shall record the surface tension 

daily for 20 operating days, and weekly thereafter as long 

as there is no violation of the surface tension requirement. 

If the surface tension of the plating or anodizing bath 

exceeds levels specified in section 93102.8 the owner or 

operator shall again record the surface tension daily for 20 

operating days, and weekly thereafter. 

(B) Facilities not required to use a chemical fume suppressant 

specified in section 93102.8 to comply with section 

93102.4. 

The owner or operator shall record the surface tension 

daily for 20 operating days, and weekly thereafter as long 

as there is no violation of the surface tension requirement. 

If the surface tension of the plating or anodizing bath 

exceeds 45 dynes/centimeter as measured with a 

stalagmometer or exceeds 35 dynes/centimeter as 

measured with a tensiometer, the owner or operator shall 

again record the surface tension daily for 20 operating 

days, and weekly thereafter. 

(C) Facilities with an approved alternative method of 

compliance as specified in section 93102.4(b)(3) and using 

chemical fume suppressants as all, or partial control of 

hexavalent chromium emissions must record the surface 

tension of the electroplating, or anodizing bath daily. The 

surface tension must be maintained at or below the surface 

tension measured during the performance test. 

(5) Mechanical fume suppressants. Facilities with an approved 

alternative method of compliance as specified in section 

93102.4(b)(3) and using mechanical fume suppressants as all 

or partial control of hexavalent chromium emissions must 

record the coverage on the electroplating or anodizing bath 

daily. Coverage shall be reported as a percentage of bath 

surface area. 

Effective Date: October 24, 2007
35 

(6) Foam thickness. The owner or operator shall record the foam 

thickness 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. 

(d) Breakdown records. The owner or operator shall maintain records 

of the occurrence, duration, and cause (if known) and action taken 

on each breakdown. 

(e) Records of excesses. The owner or operator shall maintain 

records of exceedances of the emission limitations in section 

93102.4, the monitoring parameter values established under 

section 93102.9, or any site-specific operating parameters 

established for alternative equipment. The records shall include the 

date of the occurrence, the duration, cause (if known), and, where 

possible, the magnitude of any excess emissions. 

(f) Records demonstrating facility size. Facility size for determining 

the applicable emission limitation in subsection 93102.4(a) is 

determined by the maximum cumulative potential rectifier capacity. 

However, a facility with a maximum cumulative potential rectifier 

capacity of 60 million amp-hr/yr or more may, at the option of the 

owner or operator, be considered small or medium if the actual 

cumulative rectifier usage is less than 60 million amp-hr/yr as 

demonstrated by using either of the following procedures: 

(1) Annual actual cumulative rectifier capacity. Show by records 

that the facility's previous annual actual cumulative rectifier 

capacity was less than 60 million amp-hr/yr, by using 

nonresettable ampere-hour meters and keeping monthly 

records of actual ampere-hour capacity for each 12-month 

rolling period following the compliance date. The actual 

cumulative rectifier capacity for the previous 12-month rolling 

period shall be tabulated monthly by adding the capacity for 

the current month to the capacities for the previous 11 months; 

or 

(2) Maximum cumulative potential rectifier usage limit. By 

accepting a limit on the maximum cumulative potential rectifier 

usage of a hard chromium electroplating facility through a 

title V permit condition or a permitting agency operating permit 

condition and by maintaining monthly records in accordance 

with subsection 93102.12(c)(1) to demonstrate that the limit 

has not been exceeded. 

Effective Date: October 24, 2007
36 

(g) Records of annual ampere-hour use. Facilities shall maintain 

monthly records of total ampere-hour use per calendar year. The 

record shall be submitted to the permitting agency as part of their 

Initial and Ongoing Compliance Status Reports, as specified in 

Appendix 2 and 3. 

(h) Records of chemical fume suppressant additions. For facilities 

using chemical fume suppressants to comply with the standards, or 

requirements, the owner or operator shall maintain records of the 

date, time, approximate volume, and product identification of the 

chemical fume suppressant that is added to the electroplating or 

anodizing bath. 

 

(i) Records of trivalent chromium process components. For facilities 

complying with subsection 93102.6(a) using the trivalent chromium 

process, the owner or operator shall maintain records of the bath 

components purchased, with the wetting agent clearly identified as 

a bath constituent contained in one of the components. 

(j) New/modified source review information. The owner or operator 

shall maintain records supporting the notifications and reports 

required by the permitting agency's new source review provisions 

and/or subsection 93102.4(e). 

 

(k) Housekeeping records. The owner or operator shall maintain 

records demonstrating compliance with housekeeping 

requirements, as required by section 93102.5, including the dates 

on which specific activities were completed, and records showing 

that chromium or chromium-containing wastes have been stored, 

disposed of, recovered, or recycled using practices that do not lead 

to fugitive dust emissions. 

(l) Records retention. All records shall be maintained for five years, at 

least two years on site. 

NOTE: Authority cited: Sections 39600, 39601, 39650, 39658, 39659, 39666, and 41511, 

Health and Safety Code. Reference: Sections 39650, 39658, 39659, 39665, 39666, and 41511, 

Health and Safety Code; and 40 CFR Part 63 Subpart N. 

§ 93102.13 Reporting Requirements. 

 

(a) Performance test documentation. 

(1) Notification of performance test. 

(A) The owner or operator of a facility shall notify the permitting 

agency of his or her intention to conduct a performance 

Effective Date: October 24, 2007
37 

test at least 60 calendar days before the performance test 

is scheduled. 

 

(B) The provisions in subsection 93102.13(a)(1)(A), above, do 

not apply if the performance test was conducted prior to 

July 24, 1997, was used to demonstrate compliance with 

subsection 93102.4(a) or subsection 93102.6(a), and was 

approved by the permitting agency and the U.S. EPA. 

(2) Reports of performance test results. The owner or operator 

shall report performance test results to the permitting 

agency. Reports of performance test results shall be 

submitted no later than 90 days following the completion of 

the required performance test, and shall be submitted as 

part of the notification of compliance status required by 

subsection (b) of this section. 

(3) The content of performance test reports shall contain the 

information identified in Appendix 1. 

(b) Initial compliance status report. An initial compliance status report 

is required each time that a facility becomes subject to the 

requirements of this ATCM. The owner or operator shall submit to 

the permitting agency an initial compliance status report, signed by 

the responsible official who shall certify its accuracy, attesting to 

whether the facility has complied with this rule. 

(1) The initial compliance status report shall be submitted to the 

permitting agency no later than April 24, 2008 for existing 

facilities, or at start-up for new facilities. 

(2) The content of the initial compliance status report shall contain 

the information identified in Appendix 2. 

(c) Ongoing compliance status reports. The owner, or operator shall 

submit a summary report to the permitting agency to document the 

ongoing compliance status. 

(1) Ongoing compliance status reports shall be submitted to the 

permitting agency on or before February 1 annually for all 

facilities, and shall include information for the preceding 

calendar year (January 1 through December 31). 

(2) The content of ongoing compliance status reports shall include 

the information identified in Appendix 3. 

Effective Date: October 24, 2007
38 

(d) Reports of breakdowns. The owner or operator shall report 

breakdowns as required by the permitting agency's breakdown rule. 

 

(e) Reports associated with the trivalent chromium process. 

(1) Facilities currently using the trivalent chromium process. 

(A) Owners or operators electroplating with the trivalent 

chromium process using a wetting agent are not subject to 

subsections (a), (b), and (c) of this section 93102.13, but 

shall submit to the permitting agency the following 

information no later than November 24, 2007: 

 

1. The name and address of each facility subject to this 

paragraph; 

 

2. A statement that a trivalent chromium process that 

incorporates a wetting agent will be used to comply with 

these requirements; and 

 

3. The list of bath components that comprise the trivalent 

chromium bath, with the wetting agent clearly identified. 

(B) An owner or operator electroplating with the trivalent 

chromium process and complying with the emission 

limitation option in subsection 93102.6(a) shall submit the 

information contained in subsections (a) and (b) of this 

section 93102.13. The report shall be submitted in 

accordance with the schedules identified in those 

paragraphs. 

(2) Facilities changing to the trivalent chromium process. Within 

30 days of a change to the trivalent chromium process, the 

owner or operator shall submit to the permitting agency a 

report that includes: 

(A) Facilities electroplating with the trivalent chromium process 

using a wetting agent shall submit the following 

information: 

1. The name and address of each facility subject to this 

paragraph; and 

2. A statement that a trivalent chromium process that 

incorporates a wetting agent will be used to comply with 

these requirements; and 

Effective Date: October 24, 2007
39 

3. The list of bath components that comprise the trivalent 

chromium bath, with the wetting agent clearly identified; 

and 

4. A description of the manner in which the process has 

been changed. 

(B) Facilities electroplating with the trivalent chromium process 

and complying with the emission limitation option in 

93102.6(a) shall submit the information contained in 

subsections (a) and (b) of this section 93102.13. The 

report shall be submitted in accordance with the schedules 

identified in those paragraphs. 

(f) Adjustments to the timeline for submittal and format of reports. A 

permitting agency may adjust the timeline for submittal of periodic 

reports, allow consolidation of multiple reports into a single report, 

establish a common schedule for submittal of reports, or accept 

reports prepared to comply with other State, or local requirements. 

Prior to allowing an adjustment, the permitting agency must find 

that the adjustment will provide the same information and will not 

alter the overall frequency of reporting. 

NOTE: Authority cited: Sections 39600, 39601, 39650, 39658, 39659, 39666, and 41511, 

Health and Safety Code. Reference: Sections 39650, 39658, 39659, 39665, 39666, and 41511, 

Health and Safety Code; and 40 CFR Part 63 Subpart N. 

§ 93102.14 Procedure for Establishing Alternative Requirements.

(a) Request Approval of an Alternative Requirement. Any person may 

request approval of an alternative requirement. The person 

seeking such approval shall submit the proposed alternative 

requirement to the permitting agency for approval. The request 

must include the proposed alternative requirement, the reason for 

requesting the alternative requirement, and information 

demonstrating that the criteria for approval identified in Table 

93102.14 are met. 

(b) Approval of an Alternative Requirement. A permitting agency may 

approve an alternative requirement if it determines that application 

of the alternative requirement meets the criteria for approval, 

identified in Table 93102.14, and the permitting agency has 

received concurrence by the ARB and U.S. EPA, where 

concurrence is required. 

(c) Concurrence for an Alternative Requirement. For those 

requirements identified in Table 93102.14 as requiring concurrence 

Effective Date: October 24, 2007
40 

by the U.S. EPA and ARB, the permitting agency shall submit the 

alternative requirement to the concurring agency prior to final action 

by the permitting agency. 

(d) Reports of Approved Alternative Requirements to U.S. EPA and 

ARB. The permitting agency shall provide the U.S. EPA and ARB 

with copies of all approved alternative requirements. The 

information shall be provided at a mutually agreed upon frequency. 

(e) Approval Criteria. Nothing in this section prohibits the permitting 

agency from establishing approval criteria more stringent than that 

required in Table 93102.14. 

(f) Alternatives Approved by U.S. EPA. Waivers obtained from U.S. 

EPA prior to October 24, 2007, shall remain in effect until the 

effective dates of the specified requirements become effective. 

Effective Date: October 24, 2007
41 

Table 93102.14 -- Requirements for Approval of Alternatives 

 

Section or 

Subsection 

Requirement Criteria for Approval Approving 

Agency 

Concurring 

Agency (1)

93102.1 Applicability equivalent type and 

size of facility 

regulated 

District 

93102.4 Limits and 

requirements 

equal or greater 

emission reductions 

District U.S. EPA 

93102.7(a) Performance test 

requirements 

equivalent means of 

determining 

compliance 

District 

93102.7(b) Use of previously 

conducted 

performance 

tests 

overall existing tests 

provide a similar level 

of compliance 

assurance 

District 

93102.7(c) Alternative test 

method 

provides a similar 

level of accuracy and 

precision 

District 

for Minor2 and 

Intermediate3 

Changes 

U.S. EPA, for 

Major4

Changes, and 

ARB 

93102.7(d) Amendments to 

the pre-test 

protocol 

equivalent means of 

determining 

compliance 

District 

93102.7(e) Test all emission 

points 

equivalent means of 

determining 

compliance 

District 

93102.9 Parameter 

monitoring 

equivalent means of 

determining and 

assuring compliance 

District 

for Minor5 and 

Intermediate6 

Changes 

U.S. EPA for 

Major7

Changes 

93102.10 Inspection 

maintenance 

requirements 

equivalent means of 

assuring compliance 

District 

93102.11 Operation and 

maintenance 

plans 

equivalent means of 

assuring compliance 

District 

93102.12(a) 

through (f) and 

(h) through (j) 

Record-keeping equivalent means of 

assuring compliance 

District for 

Minor8

Changes 

U.S. EPA for 

Major9

Changes 

93102.12(l) Retention of 

records 

assure historical 

records available for 

up to 5 years 

District for 

Minor8

Changes 

U.S. EPA for 

Major9

Changes 

93102.13 Reporting equivalent means of 

assuring compliance 

District for 

Minor8

Changes 

U.S. EPA for 

Major9

Changes 

1. U.S. EPA, or the implementing agency, in accordance with any delegation of 

authority to approve alternatives from the U.S. EPA. 

2. Minor change to test method means: (1) A modification to a federally 

enforceable test method that: (i) Does not decrease the stringency of the emission 

limitation or standard; (ii) Has no national significance (e.g., does not affect 

implementation of the applicable regulation for other affected sources, does not set a 

national precedent, and individually does not result in a revision to the test method); 

and (iii) Is site-specific, made to reflect or accommodate the operational 

characteristics, physical constraints, or safety concerns of an affected source. 

Effective Date: October 24, 2007
42 

(2) Examples of minor changes to a test method include, but are not limited to: 

(i) Field adjustments in a test method's sampling procedure, such as a modified 

sampling traverse or location to avoid interference from an obstruction in the stack, 

increasing the sampling time or volume, use of additional impingers for a high 

moisture situation, accepting particulate emission results for a test run that was 

conducted with a lower than specified temperature, substitution of a material in the 

sampling train that has been demonstrated to be more inert for the sample matrix; 

and (ii) Changes in recovery and analytical techniques such as a change in quality 

control/quality assurance requirements needed to adjust for analysis of a certain 

sample matrix. 

3. Intermediate change to test method means a within-method modification to a 

federally enforceable test method involving “proven technology'' (generally accepted 

by the scientific community as equivalent or better) that is applied on a site-specific 

basis and that may have the potential to decrease the stringency of the associated 

emission limitation or standard. Though site-specific, an intermediate change may set 

a national precedent for a source category and may ultimately result in a revision to 

the federally enforceable test method. In order to be approved, an intermediate 

change must be validated according to U.S. EPA Method 301 (40 CFR Part 63, 

Appendix A) to demonstrate that it provides equal or improved accuracy and 

precision. Examples of intermediate changes to a test method include, but are not 

limited to: (1) Modifications to a test method's sampling procedure including 

substitution of sampling equipment that has been demonstrated for a particular 

sample matrix, and use of a different impinger absorbing solution; (2) Changes in 

sample recovery procedures and analytical techniques, such as changes to sample 

holding times and use of a different analytical finish with proven capability for the 

analyte of interest; and (3) “Combining'' a federally required method with another 

proven method for application to processes emitting multiple pollutants. 

4. Major change to test method means a modification to a federally enforceable test 

method that uses “unproven technology or procedures'' (not generally accepted by 

the scientific community) or is an entirely new method (sometimes necessary when 

the required test method is unsuitable). A major change to a test method may be sitespecific, or may apply to one or more sources or source categories, and will almost 

always set a national precedent. In order to be approved, a major change must be 

validated according to EPA Method 301 (40 CFR Part 63, Appendix A). Examples of 

major changes to a test method include, but are not limited to: (1) Use of an 

unproven analytical finish; (2) Use of a method developed to fill a test method gap; 

(3) Use of a new test method developed to apply to a control technology not 

contemplated in the applicable regulation; and (4) Combining two or more 

sampling/analytical methods (at least one unproven) into one for application to 

processes emitting multiple pollutants.

5. Minor change to monitoring means: (1) A modification to federally required 

monitoring that: (i) Does not decrease the stringency of the compliance and 

enforcement measures for the relevant standard; (ii) Has no national significance 

(e.g., does not affect implementation of the applicable regulation for other affected 

sources, does not set a national precedent, and individually does not result in a 

revision to the monitoring requirements); and (iii) Is site-specific, made to reflect or 

accommodate the operational characteristics, physical constraints, or safety 

concerns of an affected source. (2) Examples of minor changes to monitoring 

include, but are not limited to: (i) Modifications to a sampling procedure, such as use 

of an improved sample conditioning system to reduce maintenance requirements; (ii) 

Increased monitoring frequency; and (iii) Modification of the environmental shelter to 

moderate temperature fluctuation and thus protect the analytical instrumentation. 

Effective Date: October 24, 2007
43 

6. Intermediate change to monitoring means a modification to federally required 

monitoring involving “proven technology'' (generally accepted by the scientific 

community as equivalent or better) that is applied on a site-specific basis and that 

may have the potential to decrease the stringency of the associated emission 

limitation or standard. Though site-specific, an intermediate change may set a 

national precedent for a source category and may ultimately result in a revision to the 

federally required monitoring. Examples of intermediate changes to monitoring 

include, but are not limited to: (1) Use of a continuous emission monitoring system 

(CEMS) in lieu of a parameter monitoring approach; (2) Decreased frequency for 

non-continuous parameter monitoring or physical inspections; (3) Changes to quality 

control requirements for parameter monitoring; and (4) Use of an electronic data 

reduction system in lieu of manual data reduction. 

7. Major change to monitoring means a modification to federally required monitoring 

that uses “unproven technology or procedures'' (not generally accepted by the 

scientific community) or is an entirely new method (sometimes necessary when the 

required monitoring is unsuitable). A major change to monitoring may be site-specific 

or may apply to one or more source categories and will almost always set a national 

precedent. Examples of major changes to monitoring include, but are not limited to: 

(1) Use of a new monitoring approach developed to apply to a control technology not 

contemplated in the applicable regulation; (2) Use of a predictive emission monitoring 

system (PEMS) in place of a required continuous emission monitoring system 

(CEMS); (3) Use of alternative calibration procedures that do not involve calibration 

gases or test cells; (4) Use of an analytical technology that differs from that specified 

by a performance specification; (5) Decreased monitoring frequency for a continuous 

emission monitoring system, continuous opacity monitoring system, predictive 

emission monitoring system, or continuous parameter monitoring system; (6) 

Decreased monitoring frequency for a leak detection and repair program; and (7) Use 

of alternative averaging times for reporting purposes. 

8. Minor change to recordkeeping/reporting means: (1) A modification to federally 

required recordkeeping or reporting that: (i) Does not decrease the stringency of the 

compliance and enforcement measures for the relevant standards; (ii) Has no 

national significance (e.g., does not affect implementation of the applicable regulation 

for other affected sources, does not set a national precedent, and individually does 

not result in a revision to the recordkeeping or reporting requirement); and (iii) Is sitespecific. (2) Examples of minor changes to recordkeeping or reporting include, but 

are not limited to: (i) Changes to recordkeeping necessitated by alternatives to 

monitoring; (ii) Increased frequency of recordkeeping or reporting, or increased 

record retention periods; (iii) Increased reliability in the form of recording monitoring 

data, e.g., electronic or automatic recording as opposed to manual recording of 

monitoring data; (iv) Changes related to compliance extensions granted pursuant to 

40 CFR Part 63 Section 63.6(i); (v) Changes to recordkeeping for good cause shown 

for a fixed short duration, e.g., facility shutdown; (vi) changes to recordkeeping or 

reporting that is clearly redundant with equivalent recordkeeping/reporting 

requirements; and (vii) Decreases in the frequency of reporting for area sources to no 

less than once a year for good cause shown, or for major sources to no less than 

twice a year as required by title V, for good cause shown. 

9. Major change to recordkeeping/reporting means: (1) A modification to federally 

required recordkeeping or reporting that: (i) May decrease the stringency of the 

required compliance and enforcement measures for the relevant standards; (ii) May 

have national significance (e.g., might affect implementation of the applicable 

regulation for other affected sources, might set a national precedent); or (iii) Is not 

site-specific. (2) Examples of major changes to recordkeeping and reporting include, 

but are not limited to: (i) Decreases in the record retention for all records; (ii) Waiver 

Effective Date: October 24, 2007
44 

of all or most recordkeeping or reporting requirements; (iii) Major changes to the 

contents of reports; or (iv) Decreases in the reliability of recordkeeping or reporting 

(e.g., manual recording of monitoring data instead of required automated or 

electronic recording, or paper reports where electronic reporting may have been 

required). 

NOTE: Authority cited: Sections 39600, 39601, 39650, 39658, 39659, 39666, and 41511, 

Health and Safety Code. Reference: Sections 39650, 39658, 39659, 39665, 39666, and 41511, 

Health and Safety Code; and 40 CFR Part 63 Subpart N. 

§ 93102.15 Requirements Relating to Chromium Electroplating or 

Chromic Acid Anodizing Kits. 

(a) Except as provided in subsection (b), no person shall sell, supply, 

offer for sale, or manufacture for sale in California, any chromium 

electroplating or chromic acid anodizing kit. 

(b) The provisions of subsection (a) do not apply to any person that 

sells, supplies, offers for sale, or manufactures for sale in California 

a chromium electroplating or chromic acid anodizing kit to the 

owner or operator of a permitted facility at which chromium 

electroplating or chromic acid anodizing is performed. 

(c) No person shall use a chromium plating or chromic acid anodizing 

kit to perform chromium electroplating or chromic acid anodizing 

unless these activities are performed at a permitted facility that 

complies with the requirements of this ATCM. 

(d) For the purposes of this section, “chromium electroplating or 

chromic acid anodizing kit” means chemicals and associated 

equipment for conducting chromium electroplating or chromic acid 

anodizing including, but not limited to, internal and external tank 

components. 

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. 

§ 93102.16 Appendices 1 through 9 

This section 93102.16 contains Appendices 1 through 9 to the 

ATCM for Chromium Plating and Chromic Acid Anodizing 

Facilities. 

Effective Date: October 24, 2007
45 

Appendix 1 - Content of Performance Test Reports 

Performance test reports required by section 93102.13 shall contain the following 

information: 

1. A brief process description; 

2. Sampling location description(s); 

3. A description of sampling and analytical procedures and any modifications 

to standard procedures; 

4. Test results in mg/amp-hr; 

5. Quality assurance procedures and results; 

6. Records of operating conditions during the test, preparation of standards, 

and calibration procedures; 

7. Original data for field sampling and field and laboratory analyses; 

8. Documentation of calculations; and 

9. Any other information required by the test method. 

 

Note: Test reports consistent with the provisions of California Air Resources 

Board Method 425 will fulfill the above performance test report content 

requirement. 

Effective Date: October 24, 2007
46 

Appendix 2 - Content of Initial Compliance Status Reports

Initial compliance status reports required by subsection 93102.13(b) shall contain 

the following information: 

1. Company Information: Facility name, address, owner/operator name, 

telephone number, and the measured distance to the property boundary of 

the nearest sensitive receptor. For facilities that do not have an add-on air 

pollution control device the measurement shall be the distance, rounded to 

the nearest foot, from the edge of the plating or anodizing tank nearest the 

sensitive receptor to the property line of the nearest sensitive receptor that 

exists on October 24, 2007. For facilities with an add-on air pollution control 

device the measurement shall be the distance, rounded to the nearest foot, 

from the centroid of the stack to the property line of the nearest sensitive 

receptor that exists on October 24, 2007; 

2. The applicable requirements from section 93102.4 and the methods that 

were used to determine compliance. A description of the air pollution 

control technique for each emission point; 

3. If a facility is using add-on controls to comply provide the following: 

a) Description of add-on controls and a performance test report 

documenting the results of the performance test, which contains the 

elements listed in Appendix 1; 

b) If the facility is a hexavalent chromium facility, the actual hexavalent 

chromium emissions of the facility in pounds per year calculated by 

multiplying the emission rate with the actual ampere-hours for the 

preceding calendar year. 

c) For monitored parameters 93102.9(b) and (c), the specific operating 

parameter value, or range of values, that corresponds to compliance 

with the applicable emission limit; and 

d) A statement that the owner or operator has completed and has on file 

the operation and maintenance plan as required by section 93102.11. 

4. If a facility is using in-tank controls to comply, provide the following: 

a) Description of in-tank controls including name of in tank controls, name 

of chemical fume suppressant, surface tension of the electroplating or 

anodizing bath; and 

 

Effective Date: October 24, 2007
47 

b) For monitored parameters 93102.9(d), (e), and (f) the specific operating 

parameter value where applicable, or range of values, that corresponds 

to compliance. 

5. The actual cumulative ampere-hour usage expended during the preceding 

calendar year; 

6. For facilities complying with section 93102.4(a), if the owner or operator is 

determining facility size based on actual cumulative rectifier usage, records 

to support that the facility is small or medium. For existing facilities, records 

from any 12-month period preceding the compliance date shall be used or a 

description of how operations will change to meet a small or medium 

designation shall be provided. For new facilities, records of projected 

rectifier usage for the first 12-month period of tank operation shall be used; 

7. A statement that the owner or operator, or personnel designated by the 

owner or operator, has completed Environmental Compliance Training 

pursuant to 93102.5(b); and 

8. A statement by the owner or operator as to whether the facilities have 

complied with the provisions of sections 93102 through 93102.16. 

Effective Date: October 24, 2007
48 

Appendix 3 - Content of Ongoing Compliance Status Reports

Ongoing compliance status reports required by section 93102.13(c) shall contain 

the following information: 

1. Company Information: facility name, address, owner/operator name, 

telephone number, and the measured distance to the property 

boundary of the nearest sensitive receptor. For facilities that do not 

have an add-on air pollution control device the measurement shall be 

the distance, rounded to the nearest foot, from the edge of the plating 

or anodizing tank nearest the sensitive receptor to the property line of 

the nearest sensitive receptor. For facilities with an add-on air 

pollution control device the measurement shall be the distance, 

rounded to the nearest foot, from the centroid of the stack to the 

property line of the nearest sensitive receptor; 

2. The relevant requirements for the facility, and the operating 

parameter value, or range of values, that correspond to compliance 

as specified in the notification of initial compliance status required by 

Appendix 2; 

3. The actual cumulative ampere-hour usage expended during the 

reporting period, on a month-by-month basis, for the reporting period 

January 1 through December 31; 

4. The actual hexavalent chromium emissions of the facility during the 

reporting period in pounds per year calculated by multiplying the 

emission rate with the actual ampere-hour usage for the reporting 

period; 

5. A summary of any excess emissions or exceeded monitoring 

parameters as identified in the records required by subsection 

93102.12(e); 

6. A certification by a responsible official that the inspection and 

maintenance requirements in section 93102.10 were followed in 

accordance with the operation and maintenance plan for the facility; 

7. If the operation and maintenance plan required by section 93102.11 

was not followed, an explanation of the reasons for not following the 

provisions, an assessment of whether any excess emissions and/or 

monitoring parameter excesses are believed to have occurred, and a 

copy of the record(s) required by subsection 93102.12(a) 

documenting that the operation and maintenance plan was not 

followed; 

8. A description of any changes in monitoring, processes, or controls 

since the last reporting period; 

9. A statement that the owner or operator, or personnel designated by 

the owner or operator, has, within the last 2 years, completed 

Environmental Compliance Training pursuant to 93102.5(b); 

10. The name, title, and signature of the responsible official who is 

certifying the accuracy of the report; and 

Effective Date: October 24, 2007
49 

11. The date of the report. 

 

Effective Date: October 24, 2007
50 

Appendix 4 - Notification of Construction Reports

Notification of Construction Reports required by subsection 93102.4(e) shall 

contain the following information: 

1. The owner or operator's name, title, and address; 

2. The address (i.e., physical location) or proposed address of the 

facility if different from the owner's or operator's; 

3. A notification of intention to construct a new facility and certification 

that all of the criteria specified in subsection 93102.4(d) are met; 

4. A notification of intention to make any physical or operational 

changes to a facility that may meet or has been determined to meet 

the criteria for a modification; 

5. The expected commencement and completion dates of the 

construction or modification; 

6. The anticipated date of (initial) startup of the facility; 

7. The type of process operation to be performed (hard or decorative 

chromium electroplating, or chromic acid anodizing); 

8. A description of the air pollution control technique to be used to 

control emissions, such as preliminary design drawings and design 

capacity if an add-on air pollution control device is used; and 

9. An estimate of emissions from the facility based on engineering 

calculations and vendor information on control device efficiency, 

expressed in units consistent with the emission limits of this ATCM. 

Calculations of emission estimates should be in sufficient detail to 

permit assessment of the validity of the calculations. 

Note: A facility can fulfill these report content requirements by complying with the permitting 

agency's new source review rule or policy, provided similar information is obtained. 

Effective Date: October 24, 2007
51 

Appendix 5 - Smoke Test for Chrome Tank Covers

SMOKE TEST TO VERIFY THE SEAL INTEGRITY OF COVERS DESIGNED 

TO REDUCE CHROMIUM EMISSIONS FROM ELECTROPLATING AND 

ANODIZING TANKS 

1. Applicability and Principle 

2. Applicability. This alternative method is applicable to all hard chromium 

electroplating and anodizing operations where a chrome tank cover is 

used on the tank for reducing chromium emissions. 

3. Principle. During chromium electroplating or anodizing operations, 

bubbles of hydrogen and oxygen gas generated during the process 

rise to the surface of the tank liquid and burst. Upon bursting, tiny 

droplets of chromic acid (chromium mist) become entrained in the air 

above the tank. Because the chrome tank cover completely encloses 

the air above the tank, the chromium mist either falls back into the 

solution because of gravity or collects on the inside walls of the chrome 

tank cover and runs back into the solution. A semi-permeable 

membrane allows passage of the hydrogen and oxygen out of the 

chrome tank cover. A lit smoke device is placed inside the chrome tank 

cover to detect leaks at the membrane, joints, or seals. 

4. Apparatus 

5. Smoke device. Adequate to generate 500 to 1000 ft3

 of smoke/20 ft2 of 

tank surface area (e.g., Model #1A=15 SECONDS from Superior 

Signal, New York). 

6. Small container. To hold the smoke device. 

7. Procedure 

Place the small container on a stable and flat area at center of the 

chrome tank cover (you can use a board and place it on the buss 

bars). Place the smoke device inside the container. After lighting the 

smoke device, quickly close the access door to avoid smoke from 

escaping. Let smoke device completely burn; entire space under the 

chrome tank cover will now be filled with the smoke. Observe for leaks 

of smoke from each seal, joint, and membrane of the chrome tank 

cover. Record these observations including the locations and a 

qualitative assessment of any leaks of smoke. 

When all seals, joints, and membranes have been observed, evacuate 

the unit to remove the smoke from the chrome tank cover. 

Effective Date: October 24, 2007
52 

Appendix 6 - Air Pollution Control or Air Quality Management District 

Breakdown Rules. 

DISTRICT RULE # RULE NAME

Amador 516 Upset and Breakdown Conditions 

Antelope 430 Breakdown Provisions 

Bay Area 1 General Provisions and Definitions 

Butte 275 Reporting Procedures for Excess Emissions 

Calaveras 516 Upset and Breakdown Conditions 

Colusa 1.13 Equipment Breakdown 

El Dorado 516 Upset and Breakdown Conditions 

Feather 

River 

9.6 Equipment Breakdown 

Glenn 95.2 Malfunction of Equipment 

Great Basin 403 Breakdown 

Imperial 111 Equipment Breakdown 

Kern 111 Equipment Breakdown 

Lake Chapter 

III, Article 

II 

Malfunction 

Lassen 2:15 Equipment Breakdown 

Mariposa 516 Upset and Breakdown Conditions 

Mendocino R1-5-540 Equipment Breakdown 

Modoc 2.12 Equipment Breakdown 

Mojave 430 Breakdown Provisions 

Monterey 

Bay 

214 Breakdown Condition 

North Coast 3-4-540 Breakdown and Violation Reporting 

North Coast 1-5-540 Equipment Breakdown 

Northern 

Sierra 

516 Upset and Breakdown Conditions 

Northern 

Sonoma 

1-5-540 Equipment Breakdown 

Placer 404 Upset Conditions Breakdown. Scheduled 

Maintenance 

Sacramento 602 Breakdown Conditions: Emergency Variance 

San Diego 98 Breakdown Conditions: Emergency Variance 

San 

Joaquin 

1100 Equipment Breakdown 

San Luis 

Obispo 

107 Breakdown or Upset Conditions and 

Emergency Variances 

Effective Date: October 24, 2007
53 

Santa 

Barbara 

505 Breakdown Conditions 

Santa 

Barbara 

506 Emergency Variances for Breakdowns 

Shasta 3:10 Excess Emissions 

Siskiyou 2.12 Equipment Breakdown (Siskiyou) 

South 

Coast 

430 Breakdown Provisions 

Tehama 4:17 Upset or Breakdown Conditions 

Tuolumne 516 Upset and Breakdown Conditions 

Ventura 32 Breakdown Conditions; Emergency Variances 

Yolo 

Solano 

5.2 Upset/Breakdown Conditions: Emergency 

Variance 

Effective Date: October 24, 2007
54 

Appendix 7 – Alternative Requirements for Enclosed Hexavalent Chromium 

Electroplating Facilities – Mass Emission Rate Calculation Procedure 

Mass Emission Rate shall be calculated using the following equation: 

MAMER = ETSA x K x 0.015 mg/dscm 

Where: 

MAMER = the alternative emission rate for enclosed hexavalent chromium 

electroplating tanks in mg/hr. 

ETSA = the hexavalent chromium electroplating tank surface area in square 

feet (ft2

). 

K = a conversion factor, 425 dscm/(ft2

x hr). 

Effective Date: October 24, 2007
55 

Appendix 8 – Surface Tension Procedure for a Stalagmometer 

The stalagmometer must first be properly cleaned before being used for the first 

time and after a period of storage. Properly clean the stalagmometer using the 

following procedure: 

1. Set up stalagmometer in stand in a fume hood. 

2. Place a clean 150 mL beaker underneath the stalagmometer then fill 

with reagent grade concentrated nitric acid. Immerse bottom tip 

(approximately 1⁄2”) of stalagmometer into the beaker. 

3. Squeeze rubber bulb and pinch at the arrow up (1) position to collapse. 

Place bulb end securely on top end of stalagmometer. Carefully draw the 

nitric acid by pinching the arrow up (1) position until the level is above the 

top etched line. 

4. Allow nitric acid to remain in stalagmometer for 5 minutes and then 

carefully remove the bulb allowing the acid to completely drain. 

5. Fill a clean 150 mL beaker with distilled or deionized water. Using the 

rubber bulb per the instructions in Step #3, rinse and drain stalagmometer 

with deionized or distilled water until the inside is “water break” free. 

6. Fill a clean 150 mL beaker with isopropyl alcohol. Again using the 

rubber bulb per Step #3, rinse and drain stalagmometer twice with 

isopropyl alcohol and allow the stalagmometer to dry completely. 

7. Take a sample of the solution to be tested and adjust the solution to 

room temperature. Measure the specific gravity and record reading. 

8. Fill a clean 150 mL beaker with solution to be tested. Immerse bottom 

end of stalagmometer into the beaker. Fill the stalagmometer per 

instructions in Step #3, making sure that the solution level is above the top 

etched line. 

9. Raise the stalagmometer so that the bottom end is completely out of 

solution. Remove bulb and immediately place a finger on the top end of 

the stalagmometer. Carefully use the finger to bring the solution level 

down to the top etched line. Do not release finger at this time. 

10. “Wipe” the excess solution on the lower tip by touching it against the 

side of the beaker. 

11. Release fingertip to allow solution to drain and count number of drops 

until the level reaches the bottom etched line. 

Effective Date: October 24, 2007
56 

Calculations for Surface Tension

Surface tension (dynes/cm) = Sw * Nw * D

 N * Dw 

Sw = Surface tension of water at 25oC or 77o

F (72.75 dynes/cm) 

Nw = water drop number etched on instrument 

D = measured specific gravity (g/ml) 

N = # of solution drops 

Dw = water density (1.0 g/mL) 

PRECAUTIONS: 

1. Make sure the stalagmometer is clean (no sludge or film) 

2. No chips, cracks, etc 

3. Vertical placement 

4. No vibration 

5. 20 drops per minute rate (10 dynes/cm) +/- 1 drop per minute 

6. Performance checked with water. The number of drops etched on the 

instrument shall be verified with deionized water to +/- 1 drop. If the 

number of drops are not within 1 drop, then the Stalagmometer shall be 

cleaned. If the cleaning process does not bring the drop count within 1 

drop of the etched number on the instrument, then the operator shall: 

a) Purchase a new Stalagmometer; or 

b) Use the number of drops recorded for the distilled water run as 

(Nw) in the equation instead of the number of drops etched on 

the Stalagmometer.

7. Sample at room temperature 

Effective Date: October 24, 2007
57 

Appendix 9--Information to be Submitted to the Permitting Agency when 

Demonstrating an Alternative Method or Methods of Compliance Pursuant 

to section 93102.4(b)(3) 

 

The owner or operator of a facility applying for approval of an alternative method 

of compliance must submit to the permitting agency the following information: 

1. A performance test as specified in Section 93102.7. The test shall 

have been conducted in a manner consistent with normal 

electroplating or anodizing operations. 

2. A demonstration that the alternative method achieves an equal or 

greater amount of reductions in hexavalent chromium emissions than 

would be achieved with direct compliance with the applicable 

emission rate in Table 93102.4. 

3. Calculations based on scientifically valid risk assessment 

methodologies demonstrating that the alternative method results in 

reducing risk equally or greater than the risk reduction that would be 

achieved by direct compliance with the applicable emission rate in 

Table 93102.4. A facility using in-tank controls only must be modeled 

as a volume source and the resulting risk compared to the same 

facility modeled as a point source. 

4. Documentation which demonstrates that the method is enforceable, 

including an operation and maintenance plan, an inspection and 

maintenance schedule, and a recordkeeping plan. 

NOTE: Authority cited: Sections 39600, 39601, 39650, 39658, 39659, 39666, and 41511, 

Health and Safety Code. Reference: Sections 39650, 39658, 39659, 39665, 39666, and 41511, 

Health and Safety Code; and 40 CFR Part 63 Subpart N. 

Effective Date: October 24, 2007