Web services > Washington (State)--King County > 2025-present

Control Tank [Washington (State)--King County]

King County GIS Open Data · 2026 Full Details

Full Details

Title
Control Tank [Washington (State)--King County]
Description
For more information about this layer please see the GIS Data Catalog . Tank Component Types---Wet (Permanent Pool): A tank that features 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.---Infiltration: A tank that is designed to use the hydrologic process of water soaking into the ground (commonly referred to as percolation) to dispose of stormwater.---Detention: Detention tanks temporarily store stormwater and typically releases flow over a few hours or a few days.---Combined (Wet and Detention): Detention tanks contain a permanent pool of water, but also have volume for temporary storage beyond the permanent pool.
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 Tank [Washington (State)--King County]. King County GIS Open Data. (web service)
  • BTAA Geoportal Link

View more items like this one...

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

2026

Control Proprietary Device [Washington (State)--King County]

2026

Water Quality Swale [Washington (State)--King County]

2026

Control Filter Strip [Washington (State)--King County]

2026

Control Other Point [Washington (State)--King County]

2026

RD Facility maintained by King County Roads Division [Washington (State)--King County]

2025

Control Other Polygon [Washington (State)--King County]

2026

Stormwater Post-Construction BMPs [Ohio--Stark County]

2023

Control Proprietary Device Polygon [Washington (State)--King County]

2026

Control Other Line [Washington (State)--King County]

2026