GIS Data Catalog

2005 SWDM Water Quality Applications Designations

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Summary


This dataset is to be used for regulatory land use This GIS layer was originally created for the 2005 SWDM and has seen minor revisions since then.

Description


Water Quality Applications designations as defined in the 2021 Surface Water Design Manual.


Layer information

Layer Name swdm_wq_area
Subject Category Environment
Title 2005 SWDM Water Quality Applications Designations
Feature Count 139
Feature Type Polygon
Next Update None planned
Spatial reference EPSG:2926
Control ID 269
Place Keywords Pacific NW, King County, WA, Washington State
Theme Keywords Enviro, Natural Resources, Environmental, Regulatory, Water Quality, Environment
Supplemental Information

None


Table Preview


Attribute information

WQ_LEVEL

From King County

Description

2005 SWDM Water Quality Application designation.

Domain

Basic Water Quality Treatment - Areas where a general, cost-effective level of treatment is sufficient for most land uses.

Bog Drainage Area - Areas that drain to spagnum bog wetlands larger than 0.25 acres in size.

Sensitive Lake Treatment - Areas where lake watersheds have a combination of water quality characteristics and watershed development potential that makes them particularly prone to eutrophication induced by development.

OBJECTID

From ESRI

Description

Internal feature number.

Domain

Sequential unique whole numbers that are automatically generated.

Shape

From ESRI

Description

Feature geometry.

Domain

Coordinates defining the features.

SHAPE

From ESRI

Description

Feature geometry.

Domain

Coordinates defining the features.

Shape.STLength()

From Esri

Description

Feature geometry.

Domain

Coordinates defining the features.


Contact information

Maintained by DNRP - Water and Land Resources
Primary Harkeerat Kang

Harkeerat.Kang@kingcounty.gov


Terms of Use

Summary


This dataset is to be used for regulatory land use This GIS layer was originally created for the 2005 SWDM and has seen minor revisions since then.

Description


Water Quality Applications designations as defined in the 2021 Surface Water Design Manual.


Contact information

Maintained by DNRP - Water and Land Resources
Primary Harkeerat Kang

Harkeerat.Kang@kingcounty.gov


Terms of use and copyright


Change history

1/24/2005

This dataset was created by rating the King County Water and Land hydrological basins by several flow related characteristics such as flooding problems and runoff/drainage issues.

The basins were given an overall score and then dissolved to create larger areas with the same score/designation.

The incorporated areas (as of 1/03/05) and areas overlapping the forest production districts were removed.