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—} MOUNTAIN HOUSE PROPOSED ALTAMONT HEIGHTS TENTATIVE MAP <br /> 4. $N'SrIRONMENTAL CHECKLIST <br /> 4.2 AGRICULTURAL RESOURCES <br /> Less Than <br /> li Potential SPIIIEIR Significant <br /> Significant Requires Impact Due New New <br /> Impact Additional to Mitigation Additional Additional <br /> Less Than Adequately Review:No Measures in Impact Not Mitigation <br /> Significant Addressed in Significant Project Addressed in Measures <br /> Issue� <br /> 2. AGRICULTURAL RESOURCES. or No Impact SPIIIEIR Impact Description SPIIIEIR Required� <br /> In determining whether impacts to <br /> agricultural resources are significant <br /> environmental effects,lead agencies may <br /> refer to the California Agricultural band <br /> Evaluation and Site Assessment Model <br /> (1997)prepared by the California Dept. <br /> of Conservation as an optional model to <br /> use in assessing impacts on agriculture <br /> and farmland. Would the project: <br /> a) Convert Prime Farmland,Unique ❑ ■ ❑ ❑ <br /> Farmland,or Farmland of Statewide ❑ ❑ <br /> Importance(Farmland),as shown on <br /> the maps prepared pursuant to the <br /> Farmland Mapping and Monitoring <br /> Program of the California Resources <br /> Agency,to a non-agricultural use? <br /> b) Conflict with existing zoning for ■ ❑ ❑ ❑ ❑ ❑ <br /> agricultural use,or a Williamson <br /> Act contract? <br /> c) Involve other changes in the existing ■ ❑ ❑ ❑ ❑ ❑ <br /> environment which,due to their <br /> location or nature,could result in <br /> conversion of Farmland to non- <br /> agricultural use? <br /> 1 <br /> SETTING <br /> The site of the proposed Altamont Heights project has been used for dry-land farming and is <br /> currently planted in oats. Houses and buildings exist on the west side of the site. Byron <br /> Bethany Irrigation District's Canal 155, an earthen irrigation canal, weaves through Grant <br /> !� Line Village to the north of the project site. The canal is no longer in use. The California <br /> Department of Conservation, Office of Land Conservation, and San Joaquin County have <br /> designated the soils on the site as Farmland of Local Importance. The land is not in a <br /> Williamson Act contract(EDAW,2005b, Figure 4.2-2). <br /> SIGNIFICANT IMPACTS IDENTIFIED IN 2005 SPIIIEIR <br /> I The SPIIIEIR identified three potentially significant impacts. One involves conversion of <br /> agriculturally zoned land on the Pombo property(located northeast of the Mountain House <br /> Community)to interim disposal of treated wastewater. This impact does not involve the <br /> proposed project. The other two potentially significant impacts are: <br /> Impact 4,2-3 Land Use and Agriculture—Direct Conversion of Important <br /> Farmland. [Development of Specific Plan III] would result in the direct conversion <br /> of approximately 760 acres of Important Farmland(Prime Farmland and Farmland of <br />