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Layer: HUC12 (ID: 2)

Name: HUC12

Display Field: hu_10_name

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: For watersheds in the OKI region, the Watersheds Layer serves as a spatial-reference framework for water quality data and other datasets in the Stream Database. Watershed boundaries and Hydrologic Unit Codes (HUCs) were acquired from the Watershed Boundary Dataset (WBD), which delineates surface water drainage areas based on land area and topography. The HUC system provides a tiered approach to classifying and identifying these drainage areas.For its four Ohio counties (Butler, Clermont, Hamilton and Warren) OKI obtained most of the watershed data and water quality assessments from the 2010 Ohio Integrated Water Quality Monitoring and Assessment Report (Ohio Environmental Protection Agency, Division of Surface Water, 2009-10). This includes evaluations of aquatic life uses, recreational uses, public water sources, and human health risks related to fish consumption. For each impaired watershed, the Watersheds Layer notes the status of a Total Maximum Daily Load (TMDL) study, which determines the total maximum daily loads of selected pollutants that can enter an impaired stream without ruining efforts to improve stream health. The layer also notes significant stewardship groups that have been organized to improve water quality in each watershed. OKI’s Stream Database Glossary defines the widely accepted concepts, specialized terms and acronyms associated with watersheds and water quality.

Service Item Id: c35ab2def3874151a1609971ac83bbe3

Copyright Text: OKI staff created this geographic information system layer with data from the Watershed Boundary Dataset, 2010 Ohio Integrated Water Quality Monitoring and Assessment Report, TMDL reports, Watershed Action Plans, and local stewardship organizations.

Default Visibility: false

MaxRecordCount: 2000

MaxSelectionCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

Max Scale: 0.0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: true

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:
Drawing Info: Feature Draw Order: 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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