Layer: Water Supply Protection

View In: Map Viewer

Name: Water Supply Protection - Zone I

Display Field: SITE_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: As stated in 310 CMR 22.02, Zone I means the protective radius required around a public water supply well or wellfield. For public water system wells with approved yields of 100,000 gpd or greater, the protective radius is 400 feet. Tubular wellfields require a 250-foot protective radius. Protective radii for all other public water system wells are determined by the following equation: Zone I radius in feet = (150 x log of pumping rate in gpd) - 350. This equation is equivalent to the chart in the Guidelines and Policies for Public Water Systems. A default Zone I radius or a Zone I radius otherwise computed and determined by the Department shall be applied to transient non-community (TNC) and non-transient non-community (NTNC) wells when there is no metered rate of withdrawal or no approved pumping rate. In no case shall the Zone I radius be less than 100 feet.

Copyright Text: MassDEP Drinking Water Program

Min. Scale: 0

Max. Scale: 0

Default Visibility: false

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

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Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Global ID Field:

Type ID Field:

Fields:

OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
TYPE (type: esriFieldTypeString, alias: TYPE, SQL Type: sqlTypeOther, length: 6, nullable: true, editable: true)
SITE_NAME (type: esriFieldTypeString, alias: SITE_NAME, SQL Type: sqlTypeOther, length: 40, nullable: true, editable: true)
SUPPLIER (type: esriFieldTypeString, alias: SUPPLIER, SQL Type: sqlTypeOther, length: 40, nullable: true, editable: true)
TOWN (type: esriFieldTypeString, alias: TOWN, SQL Type: sqlTypeOther, length: 21, nullable: true, editable: true)
ZONE1_FT (type: esriFieldTypeDouble, alias: ZONE1_FT, SQL Type: sqlTypeOther, nullable: true, editable: true)
PWS_ID (type: esriFieldTypeString, alias: PWS_ID, SQL Type: sqlTypeOther, length: 7, 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:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 5/29/2019 2:11:41 PM

Schema Last Edit Date: 5/29/2019 2:11:41 PM

Data Last Edit Date: 5/29/2019 2:11:41 PM

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

Layer: Water Supply Protection - Zone I (ID:4)