Imperial County Air Pollution Control District Rule 400.3

RULE 400.3 INTERNAL COMBUSTION ENGINE ( S ) (Adopted 10/22/2013 )

A APPLICABILITY

A.1 The provisions of this Rule shall apply to any Internal Combustion Engine(s) with a brake horsepower (bhp) rating greater than 50 that requires a Permit to Operate ( PTO ) , except as provided in Section D.

A.2 Internal C ombustion E ngine(s) subject to the provisions of this Rule shall not be subject to Rule 400.

B DEFINITIONS

The following definitions apply to all terms applicable to this Rule. If a term is not defined in this Rule, then the definitions provided in Rule 101 shall apply.

INTERNAL COMBUSTION ENGINE: a ny spark or com pression ignited reciprocating Internal Combustion E ngine that is attached to a found ation at a location, or is portable and operated at a location for more than 90 days in any

consecutive twelve (12) month period, excluding engines used for self propulsion

of a vehicle.

LEAN

- BURN ENGINE: a ny spark or compression ignited Internal Combust ion Engine that is operated with an exhaust gas stream oxygen concentration of four percent (4%) by volume, or greater. The exhaust gas oxygen content shall be determined from the uncontrolled exhaust gas stream.

RATED BRAKE HORSEPOWER: t he maximum Rated B rake H orsepower specified for the engine by the manufacturer and listed on the units nameplate, regardless of any derating, unless limited by the engine's PTO.

RICH

- BURN ENGINE: a ny spark or compression ignited Internal Combustion Engine that is operated with an exhaust gas stream oxygen concentration of less than four percent (4%) by volume. The exhaust gas oxygen content shall be determined from the uncontrolled exhaust gas stream.

VALID : u nder the provisions of this Rule , as long as the certification is current

and does not exceed the maximum hours.

C REQUIREMENTS

C.1 The emission concentration of NOx in ppmv, calculated as nitrogen dioxide (NO 2 ) at 15% oxygen on a dry basis, are not greater than the limits

in Table 400.3

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.

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C.2 For all e ngines subject to Subsection C.1 of this Rule , emissions of carbon monoxide (CO), calculated at 15% oxygen on a dry basis shall not exceed 2500 ppmv.

D EXEMPTIONS

The provisions of this Rule shall not apply to the following engine(s):

D.1 The operation of any engine while being used to preserve or protect property, human life, or public health during the existence of a disaster o r state of emergency;

D.2 Engines used directly and exclusi vely for the growing of crops or the raising of animals that are located with in facilities that are not exempt under Rule 202, Exemptions, Section E.10;

D.3 Gas turbine engines;

D.4 New or existing emergency stand

- by engines which operate 100 hours or less per calendar year for the purpose of testing and maintenance shall be exempt from the requirements of S ection C , and;

D.5 Existing I nternal C ombustion E ngines to be permanently replaced with

electric motors or remov ed from serv ice by April 22, 2014 based upon a permit condition, contract, or binding agreement with the District.

E RECORDKEEPING REQUIREMENTS

E.1 The Owner or Operator of any Internal Combustion Engine subject to the provisions of this Rule shall maintain an engine operating log on

- site for each month or any part of a month that the device is operated that includes the following:

E.1.a Engine(s) manufacturer name and model number, brake horsepower output rating, combustion method (i.e. R ich or L e an
B urn or d iesel ). Table 400.3

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Engine Type NOx Limits

Rich

- Burn 90

Lean

- Burn 150

Diesel 600

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E.1.b A manual of recommended maintenance as provided by the engine(s) manufacturer or other maintenance procedure as approved in writing by the Air Pollution Control Officer (APCO)

.

E.1.c Record of routine engine(s) maintenance, including date(s) and type of maintenance performed.

E.1.d A specific emission inspection procedure to assure that the engine is operated in continual compliance with the provisions of this Rule

. The procedure shall include an inspection schedule. Inspections

shall be conducted every quarter o r after every 2,000 hours of engine operation. In no event shall the frequency of inspections be less than once per year.

E.1.e Total recorded hours of operation or calculated hours of operation based upon fuel usage

.

E.1.f Type of fuel com busted.

E.2 In addition to the records required in Subsection E.1, a n Owner or Operator of an engine(s) subject to this Rule shall install a non

- resettable

fuel consumption meter or a non

- resettable elapsed time meter.

F TEST METHODS

F.1 Compliance with the requirements of Section C shall be determined In accordance with the following test procedures or any other method approved by the United States Environmental Protection Agency ( US

EPA ) and/or the California Air Resources Board ( CARB )

.

F.1.a NOx emissions for com pliance source tests shall be determined by using CARB Method 100 or US EPA Method 7 E

.

F.1.b O xygen content for compliance source tests shall be determined by using CARB Method 100 or US EPA Method 3A

.

F.1.c Carbon monoxide emissions for compliance source tests shall be

determined by using CARB Method 100 or US EPA Method 10

.

G COMPLIANCE TESTING

G.1 The Owner or Operator o f any Internal Combustion Engine with a bhp rating less than 50 0 shall demonstrate compliance using one of the following :

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G.1.a F or diesel fueled engines, off

- road engine certification data for the stationary diesel

- fueled engine, or

G.1.b E ngine manufacturer test data, or

G.1.c E ngine emission compliance source test.

G.2 The Owner or Operator of any Internal Combustion Engine with a bhp rating of 500 or greater shall demonstrate compliance through emission compliance te sting not less than once every 36 months. All emission rates shall be based on an hourly average. The Owner or Opera tor shall perform initial source test to demonstrate compliance within one year of start up or adoption of this Rule

, there after f requency of compliance testing may be extended under the following:

G.2.a The frequency of compliance testing may be extended to not less than every 60 months for Internal C ombustion E ngine(s) which operate less than 5 00 hours per 12 month period (as demonstrated by operational logs) and which emit less than 5 tons of NOx per 12 month period. This period may be extended if a source can prove that the engine(s) has not been operated during the calendar year.

G.2.b The frequency of compliance testing may be extended to not less than every 60 months for Internal Combustion Engine(s) which use a portable NOx analyzer to take NOx emission readings to verify compliance with the emission limits in Section C during each quarter in which a source test is not performed. All emission reading shall be taken with the engine operating either at conditions representative of normal operations or conditions specified in the

PTO . The analyzer shall be calibrated, maintained, and operated in accordance with the manufacturer’s specifications and

recommendations and the Protocol for the Periodic Monitoring of Nitrogen Oxides, Carbon Monoxide, and Oxygen from Stationary Engines Subj ect to South Coast Air Quality Management District

Rule 11 10 .2, approved on February 1, 2008, or subsequent protocol approved by US EPA and the APCO. NOx emission readings taken pursuant to this section shall be averaged over a 15

consecutive

- minute period by either taking a cumulative 15

consecutive

- minute sample reading or by taking at least five (5) readings, evenly space d out over the 15 consecutive

- minute period.

G.3 For the purpose of a compliance determination based on source testing,

the NOx emissions concentration shall be calculated as an average of

three test runs.

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G.4 At least 30 days prior to the scheduled source test date, the Owner or Operator of a unit subject to this Rule shall submit a source test plan to

the APCO . At least seven days prior to the source test, the Owner or Operator shall notify the APCO of the exact date and time of the source

test. A final source test result shall be submitted to the APCO within 30 days following the actual source test date.

H RECO RDS RETENTION

H.1 The Owner or Operator of any Internal Combustion Engine(s) subject to

this Rule shall maintain all records required by this Rule for a minimum of two (2) calendar years. Title V facilities shall maintain these records for five (5) calendar years. These records shall be maintained on the premises and made available to the District upon request.

I COMPLIANCE SCHEDULE

I.1 T he Owner or Operator of any Internal Combustion Engine(s) subject to the requirements of this Rule which are not in compliance with the thresholds pursuant to Section C, may be granted an extension for compliance provided the following criteria is met:

I.1.a No later than six (6) months after Rule adoption , an Owner or Operator shall submit for approval by the APCO an Authority to Construct (ATC)/ PTO application amendment. The application shall include the following supplemental information:

1. PTO number.

2. Fuel Type;

3. Annual fuel consumption (Btu/yr);

4. Current emission level, including method used to determine

e mission level; and

5. Plan of actions, including a schedule of increments of progress, which will be taken to satisfy the requirements of Section C and the compliance schedule in Section I.1.b; and

6. Any other information the District deems necessary for the completion of the application.

I.1.b Any Internal Combustion Engine(s) not in compliance with the thresholds in Section C shall demonstrate full compliance with all applicable standards and requirements of this Rule no later th an one year after Rule adoption.

I.2 Any person installing a new unit shall comply with all applicable provisions

of this Rule upon initial installation and startup.

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