Name: tis_ponds_ConComm

Display Field: Name

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Within Tisbury, ponds which have a surface area > 2,500sq ft are under the purview of the Town's Conservation Commission. Ponds of that size were identified from one of three data sources: (1) LiDAR breaklines from the Spring 2021 survey; (2) MassGIS Hydrography 1:25,000 dataset; or (3) MassDEP Wetlands (of classification 'open water') data of 2017. While the latter two datasets were used to initially identify the pond, the Martha's Vineyard Commission (MVC) then on-screen digitized the outline of the pond from the Spring 2025 orthophotos. The LiDAR breaklines were converted to polygon areas by the MVC in ArcPro software. Where ponds extend beyond the town line, the area of the pond was clipped to the Tisbury town boundary. An attribute of Town is included to distinguish the area within the Town Con.Comm's purview.It is acknowledged that their maybe additional ponds with Tisbury that this dataset has not captured.

Copyright Text: Martha's Vineyard Commission - August 2026

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 271373.874799997
YMin: 797781.245299999
XMax: 276820.8156
YMax: 803339.303599998
Spatial Reference: 26986 (26986)

Drawing Info:

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HasZ: true

HasM: true

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Acres (type: esriFieldTypeDouble, alias: Acres, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Name (type: esriFieldTypeString, alias: Name, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• Source (type: esriFieldTypeString, alias: Source, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• Town (type: esriFieldTypeString, alias: Town, SQL Type: sqlTypeOther, length: 25, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: tis_ponds_ConComm
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/28/2026 3:49:40 PM

Schema Last Edit Date: 8/28/2026 3:49:40 PM

Data Last Edit Date: 8/28/2026 3:49:40 PM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat