• Small Project Analysis Level 
• Cursory Analysis Level 
• Full Analysis Level 
• Recommended Thresholds of Significant Impact

Small Project Analysis Level (SPAL)

The Small Project Analysis Level (SPAL) is the screening level. Projects under this level require no further analysis in order to make a finding of less than significant air quality impacts.

• Verify project size or trip volume is less than pre-calculated amounts in GAMAQI Table 5-2 or 5-3
• Verify that project is not a source or near a source of hazardous air pollutants or odors
• If demolition or renovation of existing buildings, contact the District for asbestos requirements.
• Mitigate cumulative impacts with measures appropriate for the site.

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Cursory Analysis Level (CAL)

The CAL is used to determine if significance thresholds have been exceeded on projects not meeting the SPAL criteria.

• Estimate mobile and area source emissions using URBEMIS 7G
• Screen for CO impact/use CO Protocol or CALINE4 dispersion model if needed.
• If source of hazardous air pollutants or odors or is near such a source, contact the SJVUAPCD.
• If demolition or renovation of existing buildings, contact the District for asbestos requirements.
• Identify feasible mitigation measures and quantify benefit using URBEMIS 7G
• If impacts are identified as significant and cannot be mitigated to less than significant prepare an EIR with full analysis.

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Full Analysis Level (FAL)

The Full Analysis Level (FAL) is the level of analysis usually required for an EIR. It requires all the elements of the previous two levels and an air quality report that fully describes the air quality impacts to the public.

• Estimate mobile and area source emissions with URBEMIS 7G. For general plans and large specific/community plans use DTIM2 if transportation demand model available, otherwise use MVEI7G (BURDEN7G).
• Screen project for CO impacts, use CO Protocol or CALINE 4 if needed.
• If source of hazardous air pollutants or odors, or is near such a source, contact the SJVUAPCD.
• If SJVUAPCD identifies as potentially significant source of hazardous air pollutants, a health risk assessment will be required.
• Prepare an air quality report containing:
  • existing air quality conditions;
  • analysis of project air quality impacts;
  • mitigation measures; and
  • results of modeling as technical appendices.

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Recommended Thresholds of Significant Impact

• Ozone Precursor Emissions

Reactive Organic Gases (ROG) 10 tons/year
Oxides of Nitrogen (NOx) 10 tons/year

• PM-10 Emissions

Complying with SJVAPCD Regulation VIII reduces to less than significant. Large or high intensity construction projects near sensitive receptors may require mitigation beyond Regulation VIII. (See GAMAQI Table 6-3.)

• CO Emissions

Project causes or contributes to an exceedance of state or federal ambient CO standards. Determined by screening or modeling.

• Hazardous Air Pollutant Emissions

Based on potential to increase cancer risk for the person with maximum exposure potential by 10 in one million. Non-cancer Hazard Index > 1. Determined by screening or modeling.

• Odor Impacts

Based on distance of odor source from people and complaint record for facility or similar facility. More than one confirmed complaint per year averaged over a three-year period, or three unconfirmed complaints per year averaged over a three-year period. (See GAMAQI Table 4-2)

• Construction Emissions

Same thresholds as above, but apply only during construction period. Ozone precursors calculated on an annual basis.

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