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Layer: Sediment (305(b)) (ID: 6)

Name: Sediment (305(b))

Display Field: RAD305B_ALL_Water_Name

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: Sediment is fine material eroded from rocks or soil and then transported and deposited in water. Sediment in the proper quantity is a natural part of the banks and bottom of lakes, streams and other waterways, but it becomes a problem when too much of it enters the water or when it is contaminated by other pollutants. Excess fine sediment is one of the most common forms of impairment reported in over 6,000 water bodies from all parts of the US. These waters most often suffer from excessive suspended sediment in the water or too much deposited fine sediment on the bottom. Too little sediment below dams sometimes impairs streams and causes them to scour their channels and destroy fish habitat. Sediment problems happen when rain washes silt and other soil particles off of plowed fields, construction sites, logging sites, urban areas, and strip-mined lands into waterbodies. The sediment may clog and damage fish gills or suffocate eggs and aquatic insects on the bottom. Suspended silt may interfere with recreational activities like boating, fishing or swimming and degrade the beauty of waterbodies by reducing water clarity. Although sediment itself is generally harmless to human health or safety, indirect environmental or health risks can happen when nitrogen and phosphorus pollution and a variety of toxic chemicals attach to sediment particles on land and ride the particles into surface waters, where the pollutants may settle to the bottom or dissolve. People can help make sediment impairment less common or less serious by limiting soil erosion in any way possible, not contaminating soil near waterways, and routing rainwater runoff to areas where it can soak in rather than directly dump into a lake, stream or sewer system.

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Default Visibility: true

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Supported Query Formats: JSON, geoJSON, PBF

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Max Scale: 36112.0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

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Type ID Field: null

Fields:
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