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Layer: Aquifer Rating (ID: 4)

Name: Aquifer Rating

Display Field: HydrogeologicSetting

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: GV maps describe each area aquifer’s relative vulnerability to groundwater contamination, with lower Index values indicating less vulnerable conditions and higher values indicating higher vulnerability. They are calculated by weighing and summing the 7 DRASTIC parameters (D – Depth to Water, R – Net Recharge, A - Aquifer Media, S – Soil Media, T – Topography, I – Impact of Vadose Zone Media, C – Hydraulic Conductivity) according to the following formula, where W is the parameter’s weight and R its rating: GV Index= WD•RD+ WR•RR+ WA•RA+ WS•RS+ WT•RT+ WI•RI+ WC•RC.

Service Item Id: b14d7be88be743258941801fa488367c

Copyright Text: C. B. Nelson, T. R. Valachovics, M. P. Angle, K. M. Hardin, T. A. Nash, P. N. Spahr, J. M. Raab, C. J. Coe

Default Visibility: false

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 1000000

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:
Drawing Info: Advanced Query Capabilities:
HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

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

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