GIS Data Catalog

Stormwater Control Tank

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Summary

Tanks are closed stormwater features typically round or half-round section, constructed of metal or plastic.

Which are used to hold or treat stormwater.

Description

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.

Layer information

Layer Name	sw_ctrl_tank_line
Subject Category	Utilities
Title	Stormwater Control Tank
Feature Count	887
Feature Type	Line
Next Update	Continually
Spatial reference	EPSG:2926
Control ID	2517
Place Keywords	Pacific NW, King County, WA, Washington State
Theme Keywords	Utility, MS4, Stormwater, Drainage, Municipal Separate Stormwater Sewer System, NPDES Municipal Stormwater Permit, Utilitiescommunication
Supplemental Information	None

Table Preview

Attribute information

OBJECTID From Esri	Description Internal feature number. Domain Sequential unique whole numbers that are automatically generated.
Shape From King County	Description Feature geometry. Domain Coordinates defining the features.
DBAssetID From SOP Chapter 2: Database Design	Description DBAssetID is the unique identifier that is used to tie to Cityworks, MIS, or some other database. The DBAssetID is unique for each feature class and is generated by a script that runs nightly. Users should not modify the DBAssetID. Domain Not Found
ComponentType From SOP Chapter 2: Database Design	Description Within the Puget Sound Stormwater Infrastructure Framework, Component Type is the finest classification for a structure. Domain Combined, Detention, Infiltration, Unknown
Diameter From SOP Chapter 2: Database Design	Description Diameter is the interior diameter of the tank, in inches. Diameter is recorded when the pipe is circular in shape. Domain Not Found
Width From SOP Chapter 2: Database Design	Description Width is the distance from one side of a pipe to the other side. Width is collected when the pipe is not circular in shape. Domain Not Found
Height From SOP Chapter 2: Database Design	Description Height is the distance from the top of a pipe to the bottom. Height is collected when the pipe is not circular in shape. Domain Not Found
MeasSource From SOP Chapter 2: Database Design	Description MeasSource is the source of the Diameter, WidthA/WidthB, CoverSize, Depth and Sump Depth measurements. Domain Field estimate, Field measurement, Plans, Unknown
EngineeredLength From SOP Chapter 2: Database Design	Description EngineeredLength tracks the tank length per the design from engineered plans. Domain Not Found
Material From SOP Chapter 2: Database Design	Description Material tracks the primary material that the feature is constructed of. Domain CMP, Concrete, Metal, Plastic
SurfaceTexture From SOP Chapter 2: Database Design	Description Surface Texture is the surface feel or appearance of the tank interior. Domain Corrugated, Smooth
FlowDirection From SOP Chapter 2: Database Design	Description Flow direction tracks the function of the tank in terms of direction of conveyance. Domain bidirectional, Downflow
Intent From SOP Chapter 2: Database Design	Description Intent tracks whether the infrastructure was designed primarily to convey stormwater or a natural water body. Domain Convey stormwater
OwnerEntity From SOP Chapter 2: Database Design	Description OwnerEntity tracks the owner of the particular feature. Domain Airport, FMD, Private, Roads, Unknown, WLRD
Jurisdiction From SOP Chapter 2: Database Design	Description Jurisdiction tracks the jurisdiction that governs the land that the asset resides in. Domain Burien, King County, Seattle, Unknown
XYSource From SOP Chapter 2: Database Design	Description XYSource tracks the method in which the geographic location of the asset was recorded. Domain CAD, Picked from aerial, Plans, Sketch, Unknown
KingCountyMS4 No Source Noted	Description Not Found Domain Not Found
FieldVisitDate From SOP Chapter 2: Database Design	Description FieldVisitDate tracks the date that staff last visited the feature in the field. Domain Not Found
LastEditDate From SOP Chapter 2: Database Design	Description LastEditDate tracks the date that staff last edited the feature. Domain Not Found
DataStage From SOP Chapter 2: Database Design	Description DataStage tracks the status of the data as it moves through the QAQC process. Domain Acquire, Approved, Process
CurrentStatus From SOP Chapter 2: Database Design	Description CurrentStatus tracks the status of the data as it moves through the lifecycle of an asset. Domain Active, Retired
DataSource From SOP Chapter 2: Database Design	Description DataSource tracks the group, program, or process that added the data. Domain KCIA CAD, Roads NPDES Mapping, SWSS Mapping
FacilityID From SOP Chapter 2: Database Design	Description FacilityID tracks the FacilityID number that the feature is a part of. Domain Not Found
PlanLink From SOP Chapter 2: Database Design	Description When digital plans are available, PlanLink provides a hyperlink to plan files. Domain Not Found
GlobalID From SOP Chapter 2: Database Design	Description GlobalID is a 36 character string that ArcGIS uses to uniquely identify features or table rows within a geodatabase and across geodatabases. Domain Not Found
AssetID From SOP Chapter 2: Database Design	Description AssetID is the unique identifier that is used to tie to Cityworks, MIS, or some other database. The AssetID is unique for each feature class and is generated by a script that runs nightly. Users should not modify the AssetID. Domain Not Found
PAA From SOP Chapter 2: Database Design	Description PAA tracks which Potential Annexation Area an asset intersects, if applicable. Domain Not Found
CCTVInspectionDate From King County	Description Most Recent CCTV Inspection tracks the date of the most recent CCTV inspection. Domain Not Found
ReducerCount From King County	Description Reducer Count tracks the number of reducers in the tank. Domain Not Found
ReducerMaterial From King County	Description Material tracks the primary material that the reducers are constructed of. Domain Not Found
ReducerDiameter From King County	Description Reducer Diameter is the diameter of the reducer in inches. Domain Not Found
ReducerEngLength From King County	Description Reducer Engineered Length (ft) tracks the reducer length per the design from engineered plans. Domain Not Found
Shape.STLength() From ESRI	Description Shape is used by ArcGIS to store the geometry of a feature. Domain Not Found

Contact information

Maintained by	DNRP - Water and Land Resources
Primary	Harkeerat Kang Harkeerat.Kang@kingcounty.gov

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