CALIFORNIA AIR RESOURCES BOARD



### APCD/AQMD RULE EVALUATION FORM

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I. GENERAL INFORMATION

District: Placer County Air Pollution Control District

Rule No(s): 247 Date adopted/Amended/Rescinded: February 13, 2014

Rule Title(s): NATURAL GAS

- FIRED WATER HEATERS, SM ALL BOILERS AND

PROCESS HEATERS

Date Submitted to ARB: M arch 24, 2014

If an Amended Rule, Date Last Amended (or Adopted): October 10, 2013

Is the Rule Intended to be Sent to the U.S. EPA as a SIP Revision? Yes No ( If No, do not complete remainder of form)

Distri ct Contact: John Finnell Phone Number: 530

- 745

- 2324 E

- mail Address: jfinnell@placer.ca.gov

Narrative Summary of New Rule or Rule Changes: New Rule Amended Rule

This rule was first adopted in October, 2013. It was amended on February 13, 2014 to improve the labelling

requirements.

The District ha d a commitment in the 8

- hour Ozone State Implementation Plan (SIP) to adopt a new rule to

regulate oxides of ni trogen (NOx) emissions for all natural gas fired large water heaters and small boilers with

rated input sizes in the range of 75,000 up to 1,000,000 Btu/hr by 2015.

Prior to adoption of Rule 247 , water heaters and boilers in this size range we re unregul ated. Smaller water

heaters, less than 75,000 Btu/hr (residential water heaters), are regulated by Rule 246, Natural Gas

- Fired Water

Heaters.

Rule 247 covers t he entire unregulated size range from 75,000 Btu/hr up to less than 5 million Btu/hr and limit s

NOx emissions to 20 ppmv @ 3% O2.

Pollutant(s) Regulated by the Rule (Check): ROG (NOx) SO2

(CO) PM TAC (name):

II. EFFECT ON EMISSIONS

Complete this section ONLY for rules that, when implemented, will result in quantifiable changes in emissions. Attach refere nce(s) for emission

factor(s) and other information. Attach calculation sheet showing how the emissi on information provided below was determined

.

Net Effect on Emissions: Increase Decrease N/A

Emission Reduction Commitment in SIP for this Source Category: .03

Inventor y Year Used to Calculate Changes in Emissions: 2010 Area Affected: All of Placer County

Future Year Control Profile Estimate (Provide information on as many years as possible) :

NOx reduction to be achieved by this control measure will be 1.01 tpd, developing linearly from 2010 until 2025.CALIFORNIA AIR RESOURCES BOARD



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Baseline Inventory in the SIP for the Control Measure: 2002

Emissions Reduction Commitment in the SIP for the Control Measure: 0.03 ton/d ay

Revised Baseline Inventory (if any): NA

Revised Emission Reduction Estimate (if developed): 1.01 ton/day

Note that the district’s input to the Rule Evaluation Form will not be used as input to the ARB’s emission forecas ting and

planning.

III. SOURCES/ATTAINMENT STATUS

District is: Attainment Nonattainment Split

Approximate Total Number of Small (<100 TPY) Sources Affected by this Amendment: 97

Perce nt in Nonattainment Area: 7 5 %

Number of Large ( > 100 TPY) Sources Controlled: 0 Percent in Nonattainment Area: 0 %

Name(s) and Location(s) (city and county) of Large ( > 100 TPY) Sources Controlled by Rule ( Attach additional sheets as

necessary) : NA

IV. EMISSION REDUCTION TECHNOLOGY

Does the Rule Include Emission Limits that are Continuous? Yes No

If Yes, Those Limits are in Section(s) 301, Nitrogen Oxides Emission Limit of the Rule.

Other Methods in the Rule for Achieving Emission Reductions are: NA

V. OTHER REQUIREMENTS

The Rule Contains:

Emission Limits in Section(s): 301, Nitrogen Oxides Emission Limit Work Practice Standards in Section(s): NA

Recordkeeping Requirements in Section(s): 501, Recordkeeping Reporting Requirements in Section(s): NACALIFORNIA AIR RESOURCES BOARD



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VI. IMPACT ON AIR QUALITY PLAN

No Impact Impacts RFP Impacts attainment

Discussion: Adoption of Rule 247 will achieve much greater NOx reductions than the Districts SIP commitment for a boiler

control measure. The SIP commitment is 0.03 tpd wh ile Rule 247 is expected to achieve 1.01 tpd in NOx emission

reductions.