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Layer: Sub-Basins (ID: 163)

Parent Layer: COS Vernon River Basin & Sub-Basins_SR

Name: Sub-Basins

Display Field: NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This dataset was created to monitor the water quality of the Vernon River and its tributaries watershed for bacterial influence during dry weather sampling. The polygons in this layer represent subwatersheds in a hydraulic model, that was used, in conjunction with a large volume of FIB samples to estimate the average loading from each subwatershed during dry weather. The units of FIB for each polygon subwatershed are given in 109 MPN/acre-day. Dry weather was defined as antecedent rainfall within 72 hours of sampling. The hydraulic modeling was done using EPA SWMM5 with PCSWMM software from Computational Hydraulics International.Note: Field descript and CFU billions per acre per day were calculated by ((concentration times flow rate)/ contributing area) For methods and analysis refer to the Vernon River Watershed Management Plan, Savannah, Georgia 2022 https://www.ogeecheeriverkeeper.org/wp-content/uploads/2023/07/Revised-WMP-Vernon-River-2023.pdf THIS LAYER IS EDITED REGULARLY. IT IS AVAILABLE TO THE PUBLIC UPON REQUEST OF THE DATA OWNER/EDITOR. NOT INTENDED FOR REPLICATION ON THE SAGIS DATA WEBSITE. Disclaimer: The city of Savannah neither certifies nor claims that the information shown on the dataset represents the existing site conditions. The information on the dataset shall not be used without field verification.

Service Item Id: 9a1821fde7f94f04abf5f733bfdf9957

Copyright Text: Owner: City of Savannah, Water Resources Planning and Engineering Point of contact: Civil Engineer, Water Resources Planning and Engineering, Shawn Rosenquist, 912-525-3100 EXT 2511, Shawn.Rosenquist@Savannahga.gov Data Custodian: Stormwater Management Division, GIS Analyst, Maureen Spiessl, 912-525-3100 EXT 2546, maureen.spiessl@savannahga.gov

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:
Drawing Info: Advanced Query Capabilities:
HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:
Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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