20231002 13075100 1.0 FALSE Dry_Weather_Loading 002 Projected GCS_North_American_1983 Linear Unit: Foot_US (0.304801) NAD_1983_StatePlane_Georgia_East_FIPS_1001_Feet <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.1.0'><WKT>PROJCS["NAD_1983_StatePlane_Georgia_East_FIPS_1001_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",656166.6666666665],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-82.16666666666667],PARAMETER["Scale_Factor",0.9999],PARAMETER["Latitude_Of_Origin",30.0],UNIT["Foot_US",0.3048006096012192],AUTHORITY["EPSG",2239]]</WKT><XOrigin>-17790500</XOrigin><YOrigin>-43703500</YOrigin><XYScale>3048.0060960121928</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.0032808333333333331</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102666</WKID><LatestWKID>2239</LatestWKID></ProjectedCoordinateSystem> 20231002 13075500 20231012 10320500 150000000 5000 ItemDescription Esri ArcGIS 13.1.3.41833 Dry_Weather_Loading This layer is a mapping effort to determine the loading of Fecal Indicator Bacteria (FIB) from the various subwatersheds of the larger Vernon River Watershed in Savannah, Georgia. <DIV STYLE="text-align:Left;"><DIV><DIV>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. </DIV></DIV></DIV> 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 City of Savannah COS Stormwater SW NPDES Impaired Waterways Septic Vernon River Watershed Dry-Weather Enterprise Geodatabase Feature Class dataset EPSG 5.3(9.0.0) 0 Simple FALSE 0 TRUE FALSE Dry_Weather_Loading Feature Class 0 OBJECTID OBJECTID OID 4 10 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. NAME NAME String 50 0 0 X X Double 8 38 8 Y Y Double 8 38 8 DESCRIPT DESCRIPT String 254 0 0 TAG TAG String 254 0 0 RAINGAGE RAINGAGE String 50 0 0 OUTLET OUTLET String 50 0 0 SAV_STORM.MSPIESSL.Dry_Weather_Loading.AREA SAV_STORM.MSPIESSL.Dry_Weather_Loading.AREA Double 8 38 8 WIDTH WIDTH Double 8 38 8 SLOPE SLOPE Double 8 38 8 IMPERV IMPERV Double 8 38 8 NIMPERV NIMPERV Double 8 38 8 NPERV NPERV Double 8 38 8 DSIMPERV DSIMPERV Double 8 38 8 DSPERV DSPERV Double 8 38 8 ZEROIMPERV ZEROIMPERV Double 8 38 8 ROUTING ROUTING String 20 0 0 PCTROUTED PCTROUTED Double 8 38 8 CURBLENGTH CURBLENGTH Double 8 38 8 NPERVPAT NPERVPAT String 50 0 0 DSTOREPAT DSTOREPAT String 50 0 0 INFILPAT INFILPAT String 50 0 0 SNOWPACK SNOWPACK String 50 0 0 LIDCTRLS LIDCTRLS Double 8 38 8 LIDNAMES LIDNAMES String 254 0 0 INFILMODEL INFILMODEL String 20 0 0 MAXINFRATE MAXINFRATE Double 8 38 8 MININFRATE MININFRATE Double 8 38 8 DECAY DECAY Double 8 38 8 DRYTIME DRYTIME Double 8 38 8 MAXINFVOL MAXINFVOL Double 8 38 8 SUCTHEAD SUCTHEAD Double 8 38 8 CONDUCT CONDUCT Double 8 38 8 INITDEFICT INITDEFICT Double 8 38 8 CURVENO CURVENO Double 8 38 8 AQUIFER AQUIFER String 50 0 0 TONODE TONODE String 50 0 0 SURELEV SURELEV Double 8 38 8 A1COEFF A1COEFF Double 8 38 8 B1EXPONENT B1EXPONENT Double 8 38 8 A2COEFF A2COEFF Double 8 38 8 B2EXPONENT B2EXPONENT Double 8 38 8 A3COEFF A3COEFF Double 8 38 8 HSW HSW Double 8 38 8 HCB HCB Double 8 38 8 BOTTOMELEV BOTTOMELEV Double 8 38 8 WTELEV WTELEV Double 8 38 8 UZM UZM Double 8 38 8 LFEQUATION LFEQUATION String 254 0 0 DFEQUATION DFEQUATION String 254 0 0 GRNDWATER GRNDWATER String 8 0 0 LENGTH LENGTH Double 8 38 8 EROSION EROSION String 3 0 0 KUSLE KUSLE Double 8 38 8 CUSLE CUSLE Double 8 38 8 PUSLE PUSLE Double 8 38 8 LSUSLE LSUSLE Double 8 38 8 CFRG CFRG Double 8 38 8 NPERVP NPERVP String 50 0 0 DSPERVP DSPERVP String 50 0 0 SUCTHEADP SUCTHEADP String 50 0 0 CONDUCTP CONDUCTP String 50 0 0 IDEFICITP IDEFICITP String 50 0 0 MAXINFRP MAXINFRP String 50 0 0 MININFRP MININFRP String 50 0 0 DECAYP DECAYP String 50 0 0 TOTPRECIP TOTPRECIP Double 8 38 8 TOTALRUNON TOTALRUNON Double 8 38 8 TOTALEVAP TOTALEVAP Double 8 38 8 TOTALINFIL TOTALINFIL Double 8 38 8 IMPRUNOFF IMPRUNOFF Double 8 38 8 PERRUNOFF PERRUNOFF Double 8 38 8 TOTRUNOFFD TOTRUNOFFD Double 8 38 8 TOTRUNOFFV TOTRUNOFFV Double 8 38 8 PEAKRUNOFF PEAKRUNOFF Double 8 38 8 RUNOFFCOEF RUNOFFCOEF Double 8 38 8 GWEVAP GWEVAP Double 8 38 8 GWSEEP GWSEEP Double 8 38 8 GWFLOW GWFLOW Double 8 38 8 GWMAXFLOW GWMAXFLOW Double 8 38 8 GWAVGMOIST GWAVGMOIST Double 8 38 8 GWAVGTABLE GWAVGTABLE Double 8 38 8 GWENDMOIST GWENDMOIST Double 8 38 8 GWENDTABLE GWENDTABLE Double 8 38 8 Shape Shape Geometry 8 0 0 Feature geometry. Esri Coordinates defining the features. Shape.STArea() Shape.STArea() Double 0 0 0 Shape.STLength() Shape.STLength() Double 0 0 0 20231012