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The Limestone Overlay District (LOD) is a zoning overlay district adopted by the Loudoun County Board of Supervisors on 2/17/2010 and administered by the Loudoun County Department of Building and Development. The Department is responsible for all development approvals, review procedures, modifications and density calculations in the LOD as governed by Article VI, \"Development Process and Administration\", of the Revised 1993 Zoning Ordinance, and procedures in Chapter 8 of the Facilities Standards manual. The LOD is generally comprised of the following geologic formations: Cf-Frederick Limestone, Ct-Tomstown Dolomite, JTRc-Catharpin Creek Formation, JTRcg-Catharpin Creek Formation Goose Creek Member, TRbl-Balls Bluff Siltstone Leesburg Member, and TRbs-Balls Bluff Siltstone Fluvial and Deltaic Sandstone Member. The geographic area of the Limestone Overlay District (LOD) is generally east from the Catoctin Mountain Range to the Potomac River (excludes Lost Corner), and from just south of the Town of Leesburg north to Point of Rocks, MD (excludes the Town of Leesburg.)<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 2924, "latestWkid": 2924, "xyTolerance": 0.0033333333333333275, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -1.1051249999999979E8, "falseY": -8.885799999999984E7, "xyUnits": 4800.000000000008, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 }, "copyrightText": "Limstone Overlay District is based on both field work by the County Soil Scientist and USGS's geology layer of Loudoun County.", "parentLayer": null, "subLayers": [], "minScale": 501000, "maxScale": 0, "referenceScale": 0.0, "drawingInfo": { "renderer": { "type": "simple", "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 255, 190, 190, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 255, 85, 0, 255 ], "width": 0.4 } } }, "scaleSymbols": true, "transparency": 0, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": 1.1736836366458327E7, "ymin": 7076464.950625002, "xmax": 1.1768330724166662E7, "ymax": 7145883.329166666, "spatialReference": { "wkid": 2924, "latestWkid": 2924, "xyTolerance": 0.003280833333333333, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -110512500, "falseY": -88858000, "xyUnits": 3048.0060960121928, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeNone", "displayField": "LI_MAP_UNIT", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "SHAPE", "type": "esriFieldTypeGeometry", "alias": "SHAPE", "domain": null }, { "name": "LI_MAP_UNIT", "type": "esriFieldTypeString", "alias": "LI_MAP_UNIT", "length": 6, "domain": null }, { "name": "LI_UPD_DATE", "type": "esriFieldTypeDate", "alias": "LI_UPD_DATE", "length": 8, "domain": null }, { "name": "SHAPE_Length", "type": "esriFieldTypeDouble", "alias": "SHAPE_Length", "domain": null }, { "name": "SHAPE_Area", "type": "esriFieldTypeDouble", "alias": "SHAPE_Area", "domain": null } ], "geometryField": { "name": "SHAPE", "type": "esriFieldTypeGeometry", "alias": "SHAPE" }, "indexes": [ { "name": "FDO_OBJECTID", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "FDO_SHAPE", "fields": "SHAPE", "isAscending": true, "isUnique": false, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 12000, "supportsStatistics": true, "supportsExceedsLimitStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON, PBF", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "supportedSpatialRelationships": [ "esriSpatialRelIntersects", "esriSpatialRelContains", "esriSpatialRelCrosses", "esriSpatialRelEnvelopeIntersects", "esriSpatialRelIndexIntersects", "esriSpatialRelOverlaps", "esriSpatialRelTouches", "esriSpatialRelWithin", "esriSpatialRelRelation" ], "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsPercentileStatistics": true, "supportsHavingClause": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsCountDistinct": true, "supportsPagination": true, "supportsLod": false, "supportsQueryWithLodSR": false, "supportsTrueCurve": true, "supportsQueryWithDatumTransformation": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true, "supportsTimeRelation": true, "supportsSqlFormat": false, "supportsQueryAnalytic": false }, "supportsDatumTransformation": true, "dateFieldsTimeReference": { "timeZone": "Eastern Standard Time", "respectsDaylightSaving": true }, "preferredTimeReference": { "timeZone": "Eastern Standard Time", "respectsDaylightSaving": true }, "datesInUnknownTimezone": false, "hasGeometryProperties": true, "geometryProperties": { "shapeAreaFieldName": "SHAPE_Area", "shapeLengthFieldName": "SHAPE_Length", "units": "esriFeet" }, "hasMetadata": true, "isDataArchived": false, "archivingInfo": { "supportsQueryWithHistoricMoment": false, "startArchivingMoment": -1 }, "supportsCoordinatesQuantization": true, "supportsDynamicLegends": true }