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Layer: Watersheds - Lakes Most at Risk from Development_1 (ID: 1007)

Parent Layer: Watersheds - Lakes Most at Risk from Development

Name: Watersheds - Lakes Most at Risk from Development_1

Display Field: POND98

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Contains watershed boundaries for at risk lakes in Maine, based on USGS 1:24,000 scale topography. Also contains direct drainage areas for the at risk lakes. The field "WSType" defines whether the watershed is a total or direct watershed. The direct drainage of an at risk lake includes all surface waters draining through the lake not influenced by biological processes occuring within other lakes upstream of the at risk lake. The direct drainage of a lake was defined using the following criteria:1. All ponds and lakes with a flushing rate greater than 50 times per year were included in the direct drainage.2. Ponds and Lakes without flushing ratesa. Greater than 10 acres in size were excludedb. Less than 1 acre were includedc. Between 1 and 10 acres were exlcuded: where DEP staff had previously defined a watershed delineation for upstream lakes; where MIDAS numbers had been assigned to upstream ponds; where the upstream lakes had very small watersheds with little to few incoming streams; where National Wetlands Inventory defined them as ponds (UB).d. Between 1 and 10 acres were included where the professional judgement of DEP staff, informed by aerial photography and National Wetlands Inventory data, deemed the waterbody to flush more than 50 times a year.

Definition Expression: N/A

Copyright Text: Ben Tyler Maine Department of Environmental Protection

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, AMF, geoJSON

Min Scale: 0

Max Scale: 500001

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Supports Datum Transformation: true

Drawing Info: Advanced Query Capabilities:
HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Supported Operations:   Query   Generate Renderer   Return Updates

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