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Control Pond and Vault [Washington (State)--King County]

King County GIS Open Data · 2026 Full Details

Full Details

Title
Control Pond and Vault [Washington (State)--King County]
Description
For more information about this layer please see the GIS Data Catalog . Pond/Vault Component Types---Detention (Flow Through): Detention ponds and vaults temporarily store stormwater and typically releases flow over a few hours or a few days. Flow through means that the pond or vault that flow enters the pond through an inlet and exits through an outlet. ---Detention (Backup): Detention ponds and vaults temporarily store stormwater and typically releases flow over a few hours or a few days. Backup means that the pond or vault that flow enters the pond through an inlet and exits through an outlet. ---Stormwater treatment wetland: Stormwater treatment Wetlands use gravity settling, physical, chemical and biological processes of plant uptake and bacterial degradation to remove pollutants. They are similar to wetponds in size, but have a deep cell a shallow cell that promotes plant growth. ---Wet (Water Quality): Drainage facilities for water quality treatment that contain a permanent pool of water. They are designed to optimize water quality by providing long retention times (on the order of a week or more) to settle out particles of fine sediment to which pollutants such as heavy metals adsorb, and to allow biologic activity to occur that metabolizes nutrients and organic pollutants. For wetvaults, the permanent pool of water is covered by a lid which blocks sunlight from entering the facility, limiting light-dependent biologic activity. Depth is >3'. ---Combined (Wet and Detention): Have the appearance of a detention facility but contain a permanent pool of water as well.---Oil Water Separator: A vault, usually underground designed to provide a quiescent environment to separate oil from water. Floatables (e.g., styrofoam) are also removed. ---Infiltration: A Pond or vault that is designed to use the hydrologic process of water soaking into the ground (commonly referred to as percolation) to dispose of surface and storm water runoff
Creator
King County
Publisher
King County GIS Open Data
Temporal Coverage
Last Modified: 2026-01-08
Date Issued
2025-08-07
Rights
King County data are made available with the understanding that they shall be used exclusively by the obtainer or their authorized agents. The information included has been compiled by King County staff from a variety of sources and is subject to change without notice. King County makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. This document is not intended for use as a survey product. King County shall not be liable for any general, special, indirect, incidental, or consequential damages including, but not limited to, lost revenues or lost profits resulting from the use or misuse of the information contained within this feature class. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County. Drainage patterns or features are commonly altered to accommodate changes in development, so the information contained herein may not reflect current conditions.
Access Rights
Public
Format
ArcGIS FeatureLayer
Language
English
Date Added
January 09, 2026
Provenance Statement
The metadata for this resource was last retrieved from King County GIS Open Data on 2026-01-08.

Location

Cite and Reference

  • Citation
    King County (2025). Control Pond and Vault [Washington (State)--King County]. King County GIS Open Data. (web service)
  • BTAA Geoportal Link

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