Parent Layer: RIGIS Data

Name: Wellhead Protection Areas Non Community

Display Field: Shape_STAr

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: A wellhead protection area (WHPA) is the portion of an aquifer through which groundwater moves to a well. Under the Rhode Island Department of Environmental Management (DEM) Wellhead Protection (WHP) Program approved by the US Environmental Protection Agency in 1990, DEM is responsible for delineating a WHPA for each of the public wells in the state. DEM contracted with the GZA Consulting to delineate select non-community stratified drift wells using analytical modeling and hydrogeologic mapping. As of August 2013, the Rhode Island Department of Health Office of Drinking Water Quality (HEALTH) is responsible for delineating the Calculated Fixed Radius WHPA's for bedrock wells, based on the pump rate of the well. Non-Transient Non-Community Well - regularly serves at least 25 of the same persons (not residents) over 6 months of the year. Examples include wells serving schools and places of employment. Transient Non-Community Well - does not regularly serve the same persons, but does serve at least 25 people at least 60 days of hte year. DEM relied on technical input from the Wellhead Protection Program Advisory Committee in developing the delineation methodology. A mapping approach was required that was scientifically defensible, could be applied consistently across the state, and could be applied with the resources available to DEM. The delineations are based on reasonably available information regarding the hydrogeologic environment and the well characteristics. The WHPAs were delineated using the US Geological Survey quadrangle maps at a scale of 1:24000. WHPA maps are available for review at the DEM Office of Water Resources, on the DEM web page at www.state.ri.us/dem, and on the Rhode Island Geographic Information System webpage at www.edc.uri.edu/rigis.September 2014 updates made by RI Department of Health Office of Drinking Water Quality.

Copyright Text: Jonathan Zwarg, RI Dept Of Environmental Management, Office of Water Resources, Paul Jordan, RI Dept of Environmental Management, Office Of Management Information Service, Amy Parmenter, RI Dept of Health, Office of Drinking Water Quality.

Default Visibility: false

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: -7993432.607571201
YMin: 5035750.003972541
XMax: -7916935.373022564
YMax: 5163652.796786843
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [177, 199, 224, 255]
Outline:
Style: esriSLSSolid
Color: [177, 199, 224, 255]
Width: 0
Label: N/A
Description: N/A
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: true
Supports Sql Format: false
Supports Query Analytic: false
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• Shape_STAr ( type: esriFieldTypeDouble, alias: Shape_STAr )
• Shape_STLe ( type: esriFieldTypeDouble, alias: Shape_STLe )
• Shape_Length ( type: esriFieldTypeDouble, alias: Shape_Length )
• Shape_Area ( type: esriFieldTypeDouble, alias: Shape_Area )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata