Layers:

Layer: merrimack_dmp_sampling_sites (0)


Name: merrimack_dmp_sampling_sites

Display Field:

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: <p>Component of the Merrimack Dragonfly Mercury Project StoryMap (https://storymaps.arcgis.com/stories/cbc7bb3763484b80a04653ae196bfe69), which was funded by multiple sources and created by the Appalachian Mountain Club to describe the Merrimack Dragonfly Mercury Project, provide historical context for mercury pollution in the Merrimack River watershed, and highlight the results of five years of sampling by over 1,000 public participants.</p>

Copyright Text: Originally created by Cathy Poppenwimer (former AMC GIS Scientist) and updated by Hannah Clipp (current AMC GIS Scientist), in collaboration with the project lead, Sarah Nelson (AMC Director of Research).

Min. Scale: 49199571

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -7986214.86982779
YMin: 5210442.46925959
XMax: -7916447.67693919
YMax: 5467115.04722
Spatial Reference: 102100 (3857)


Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: false

HTML Popup Type: esriServerHTMLPopupTypeNone

Object ID Field: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
• FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeInteger, length: 0, nullable: false, editable: false)
• School_Par (type: esriFieldTypeString, alias: School_Par, SQL Type: sqlTypeNVarchar, length: 254, nullable: true, editable: true)
• Site (type: esriFieldTypeString, alias: Site, SQL Type: sqlTypeNVarchar, length: 254, nullable: true, editable: true)
• Year (type: esriFieldTypeDouble, alias: Year, SQL Type: sqlTypeFloat, nullable: true, editable: true)
• Latitude (type: esriFieldTypeDouble, alias: Latitude, SQL Type: sqlTypeFloat, nullable: true, editable: true)
• Longitude (type: esriFieldTypeDouble, alias: Longitude, SQL Type: sqlTypeFloat, nullable: true, editable: true)
• geo_mean (type: esriFieldTypeDouble, alias: geo_mean, SQL Type: sqlTypeFloat, nullable: true, editable: true)
• GeoSE (type: esriFieldTypeDouble, alias: GeoSE, SQL Type: sqlTypeFloat, nullable: true, editable: true)
• CScientist (type: esriFieldTypeDouble, alias: CScientist, SQL Type: sqlTypeFloat, nullable: true, editable: true)
• Group_ (type: esriFieldTypeString, alias: Group, SQL Type: sqlTypeNVarchar, length: 254, nullable: true, editable: true)
• Data_Sourc (type: esriFieldTypeString, alias: Data_Sourc, SQL Type: sqlTypeNVarchar, length: 254, nullable: true, editable: true)
• In_H2Oshed (type: esriFieldTypeString, alias: In_H2Oshed, SQL Type: sqlTypeNVarchar, length: 5, nullable: true, editable: true)
• Quote1 (type: esriFieldTypeString, alias: Quote1, SQL Type: sqlTypeNVarchar, length: 250, nullable: true, editable: true)
• Quote2 (type: esriFieldTypeString, alias: Quote2, SQL Type: sqlTypeNVarchar, length: 250, nullable: true, editable: true)
• Quote3 (type: esriFieldTypeString, alias: Quote3, SQL Type: sqlTypeNVarchar, length: 250, nullable: true, editable: true)
• URL1 (type: esriFieldTypeString, alias: URL1, SQL Type: sqlTypeNVarchar, length: 250, nullable: true, editable: true)
• URL2 (type: esriFieldTypeString, alias: URL2, SQL Type: sqlTypeNVarchar, length: 250, nullable: true, editable: true)
• Photo1 (type: esriFieldTypeString, alias: Photo1, SQL Type: sqlTypeNVarchar, length: 250, nullable: true, editable: true)
• Photo2 (type: esriFieldTypeString, alias: Photo2, SQL Type: sqlTypeNVarchar, length: 250, nullable: true, editable: true)
• Site_Primary_Key (type: esriFieldTypeString, alias: Site_Primary_Key, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• New (type: esriFieldTypeString, alias: New, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)

Templates:

Name: New Feature
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Drawing Tool: esriFeatureEditToolPoint
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/30/2026 5:46:17 PM

Schema Last Edit Date: 8/27/2026 7:58:17 PM

Data Last Edit Date: 8/30/2026 5:46:17 PM