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Contact Information:

Mariposa County APCD
P.O. Box 5
Mariposa, CA 95338
(209) 966-2220

Relevant State
Agencies:

Mariposa County APCD Regulations

California Public Utilities Commission

California Energy Commission

California BACT Clearinghouse Database

CARB Distributed Generation Program

Major Utilities:

Pacific Gas & Electric

Southern California Gas Company (SoCalGas)

Southwest Gas Company (SWGas)

Southern California Edison Company

Sierra Pacific Power Company

Pacificorp (Pacific Power & Light)

San Diego Gas Electric Company

Mariposa County Air Pollution Control District-CALIFORNIA

AIR EMISSIONS REGULATIONS:

Air Quality Status In attainment (APCD includes all of Mariposa County)
EPA's Nonattainment Areas
Major Source Threshold 250 tons of any criteria pollutant
Minor Source Permitting Exemption Size and fuel based
Minor Source Treatment Case-by-case
Emergency Generating Limits None

DE MINIMIS EXEMPTIONS:

A unit smaller than 1,000 cubic inches burning diesel or gasoline or any size unit burning natural gas or liquid petroleum gas is exempt from permitting if it does not trigger the Title V threshold.

MINOR SOURCE PERMITTING:

The district does not have any regulations that limit emissions. The permitting process begins with a submission of a form called an "Authority to Construct." This document would contain a description of the proposed unit, its emissions and any controls that would be used. District officials will then approve the application or make recommendations on a case-by-case basis.

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