SACAQMD RULE 480 CHROME PLATING AND CHROMIC ACID ANODIZING
LAST REVISED 08/22/89
SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS
RULE 480 CHROME PLATING AND CHROMIC ACID ANODIZING
Adopted 8-22-89
INDEX
100 GENERAL
101 PURPOSE
200 DEFINITIONS
201 AMPERE-HOURS
202 ANTI-MIST ADDITIVE
203 CHROME
204 CHROME PLATING
205 CHROMIC ACID
206 CHROMIC ACID ANODIZING
207 CHROMIUM
208 CONTROL EQUIPMENT
209 DECORATIVE CHROME PLATING
210 EMISSION FACTOR
211 EMISSIONS COLLECTION SYSTEM
212 FACILITY-WIDE EMISSIONS FROM HARD CHROME PLATING OR
CHROMIC ACID ANODIZING
213 HARD CHROME PLATING
214 PLATING TANK
215 UNCONTROLLED CHROMIUM EMISSIONS
300 STANDARDS
301 DECORATIVE CHROME PLATING
302 HARD CHROME PLATING OR CHROMIC ACID ANODIZING
400 ADMINISTRATIVE REQUIREMENTS
401 RECORDKEEPING
402 COMPLIANCE SCHEDULES
500 TEST METHODS
501 CHROMIUM EMISSIONS TEST PROCEDURE
100 GENERAL
101 PURPOSE: To limit the emission of hexavalent chromium to
the atmosphere from chrome plating and chromic acid
anodizing operations.
200 DEFINITIONS: For the purposes of this rule the following
definitions shall apply:
201 AMPERE-HOURS: The integral of electrical current
(amperes) applied to a plating tank over a period of
time (hours).
202 ANTI-MIST ADDITIVE: A chemical which reduces the
emission rate from the tank when added to and maintained
in the plating tank.
203 CHROME: Metallic chrome.
204 CHROME PLATING: Hard or decorative chrome plating.
205 CHROMIC ACID: An aqueous solution of chromium trioxide
(CrO3) or a commercial solution containing chromium
trioxide, chromic acid (H2CrO4), dichromic acid
(H2Cr2O7) or trichromic acid (H2Cr3O10).
206 CHROMIC ACID ANODIZING: The electrolytic process by
which a metal surface is converted to an oxide surface
coating by the action of a solution containing chromic
acid.
207 CHROMIUM: Hexavalent chromium, which refers to the
valence state of +6 for the chromium in the aqueous
solution.
208 CONTROL EQUIPMENT: Any device which reduces chromium air
contaminant emissions from an emissions collection
system and which has been approved by the Air Pollution
Control Officer.
209 DECORATIVE CHROME PLATING: The process by which chromium
is electrodeposited from a solution containing compounds
of chromium onto an object resulting in a chrome layer 1
micron (0.04 mil) thick or less.
210 EMISSION FACTOR: The mass of chromium emitted during a
test conducted in the emissions collection system in
accordance with ARB Test Method 425, divided by the
ampere-hours consumed by the tanks in the tested
emissions collection system, expressed as the mass of
chromium emitted per ampere-hour of electrical current
consumed.
211 EMISSIONS COLLECTION SYSTEM: A device or apparatus used
to gather chromium emissions from the surface of a
chrome plating or chromic acid anodizing tank or tanks.
212 FACILITY-WIDE EMISSIONS FROM HARD CHROME PLATING OR
CHROMIC ACID ANODIZING: The total uncontrolled chromium
emissions from all hard chrome plating or chromic acid
anodizing at the stationary source over a calendar year.
Emissions shall be calculated as the sum of emissions
from the emissions collection system(s) at the
stationary source. The emissions from each emission
collection system shall be calculated by multiplying the
emission factor for that emissions collection system by
the sum of the ampere-hours consumed during that year
for all of the tanks served by the emissions collection
system.
213 HARD CHROME PLATING: The process by which chromium is
electrodeposited from a solution containing compounds of
chromium onto an object resulting in a chrome layer
thicker than 1 micron (0.04 mil).
214 PLATING TANK: Any container used to hold a chromium or
chromic acid solution for the purpose of chrome plating
or chromic acid anodizing.
215 SOURCE: Any operation that produces and/or emits air
pollutants.
216 UNCONTROLLED CHROMIUM EMISSIONS: The chromium emissions
from the emissions collection systems at the stationary
source calculated as if no control equipment is in use.
For the purpose of determining compliance with this
rule, the uncontrolled chromium emissions shall be
calculated using an emission factor based on tests
conducted in accordance with ARB Test Method 425 or 14
mg/ampere-hour, whichever is less.
300 STANDARDS
301 DECORATIVE CHROME PLATING - A person shall not operate a
decorative chrome plating tank unless one of the
following control measures is used in a manner which has
been demonstrated to and approved by the Air Pollution
Control Officer (APCO) as reducing chromium emissions by
95% or more relative to the uncontrolled chromium
emissions.
301.1 An anti-mist additive is continuously maintained
in the plating tank, or;
301.2 Control equipment is installed and used, or;
301.3 An equivalent method approved by the Air
Pollution Control Officer is installed and used.
302 HARD CHROME PLATING OR CHROMIC ACID ANODIZING:
302.1 A person shall not operate a hard chrome plating
tank or chromic acid anodizing tank unless the
tank has an emissions collection system that
meets one of the following requirements:
a. The chromium emissions from the emissions
collection systems serving the plating tank
are reduced by at least 95% from the
uncontrolled chromium emissions, or;
b. The chromium emissions from the emissions
collection systems serving the plating tank
are reduced to less than 0.15 milligrams(mg)
of chromium per ampere-hour of electrical
charge applied to the plating tank.
302.2 A person shall not operate a hard chrome plating
tank or chromic acid anodizing tank at a
stationary source where the facility-wide
chromium emissions from hard chrome plating or
chromic acid anodizing are greater than 2 pounds
per year, but less than 10 pounds per year,
unless the tank has an emissions collection
system that meets one of the following
requirements:
a. The chromium emissions from the emissions
collection systems serving the plating tank
are reduced by at least 99% from the
uncontrolled chromium emissions, or;
b. The chromium emissions from the emissions
collection systems serving the plating tank
are reduced to less than 0.03 mg of chromium
per ampere-hour of electrical charge applied
to the plating tank.
302.3 A person shall not operate a hard chrome plating
tank or chromic acid anodizing tank at a
stationary source where the facility-wide
chromium emissions from hard chrome plating or
chromic acid anodizing are greater than or equal
to 10 pounds per year, unless the tank has an
emissions collection system that meets one of
the following requirements:
a. The chromium emissions from the emissions
collection systems serving the plating tank
are reduced by at least 99.8% from the
uncontrolled chromium emissions, or;
b. The chromium emissions from the emissions
collection systems serving the plating tank
are reduced to less than 0.006 mg of
chromium per ampere-hour electrical charge
applied to the plating tank.
302.4 Compliance shall be verified by source testing
every 24 months.
400 ADMINISTRATIVE REQUIREMENTS
401 RECORDKEEPING REQUIREMENTS: A person subject to the
provisions of Section 300 of this rule shall meet the
following applicable requirements:
401.1 A weekly record of anti-mist additive
concentrations or any other measurements
recommended by the manufacturer's specification
and the Air Pollution Control Officer shall be
maintained. Recordkeeping shall begin on the
date of final compliance.
401.2 A weekly record of current integrated over time
(ampere-hours) for all plating tanks used at a
chrome plating or chromic acid anodizing
stationary source shall be maintained.
Recordkeeping shall begin on August 22, 1989.
401.3 All records including all pertinent information
relative to the operation of the plating tanks,
all source testing, and all information relative
to the emissions collection system and the
control equipment shall be maintained for two
years and shall be made available to the Air
Pollution Control Officer upon request.
402 COMPLIANCE SCHEDULES
402.1 A person subject to the provisions of Section
301 shall be in final compliance with the
requirements of Section 301, and shall submit to
the Air Pollution Control Officer an application
for a Permit to Operate, no later than March 1,
1990.
402.2 A person subject to the provisions of Section
302, except a person subject to the provisions
of Subsection 302.2 shall meet the following
compliance schedule:
a. Submit to the Air Pollution Control Officer
an application for a Permit to Operate the
plating tank no later than March 1, 1990,
and;
b. Submit to the Air Pollution Control Officer
an application for Authority to Construct
the equipment necessary to comply with the
requirements of Subsection 302.1, if needed
no later than September 1, 1990, and;
c. Achieve final compliance with the
requirements of Subsection 302.1 no later
than March 1, 1991.
402.3 A person subject to the provisions of Subsection
302.2 shall meet the following compliance
schedule:
a. Submit to the Air Pollution Control Officer
an application for a Permit to Operate the
plating tank no later than March 1, 1990,
and;
b. Submit to the Air Pollution Control Officer
an application for Authority to Construct
the equipment necessary to comply with the
requirements of Subsection 302.2, if needed,
no later than March 1, 1991, and;
c. Achieve final compliance with the
requirements of Subsection 302.2 no later
than September 1, 1991.
402.4 A person subject to the provisions of Subsection
302.3 shall, in addition, meet the following
compliance schedule:
a. Submit to the Air Pollution Control Officer
an application for a Permit to Operate the
plating tank no later than March 1, 1990,
and;
b. Submit to the Air Pollution Control Officer
an application for Authority to Construct
the equipment necessary to comply with the
requirements of Subsection 302.3, if needed,
no later than March 1, 1991, and;
c. Achieve final compliance with the
requirements of Subsection 302.3, no later
than September 1, 1993.
500 TEST METHODS
501 Compliance with the chromium emissions requirement in
Section 302 of this rule shall be determined by ARB Test
Method 425.