20210816
23025000
1.0
FALSE
MCLViolationCounts
002
Projected
GCS_WGS_1984
Linear Unit: Meter (1.000000)
WGS_1984_Web_Mercator_Auxiliary_Sphere
<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/3.3.0'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem>
20240812
13263800
20240812
13263800
Esri ArcGIS 13.2.0.49743
MCLViolationCounts
<font color='#000000' size='3' style='background-color:rgb(255, 255, 255);'><span style='margin:0px; padding:0px; font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; font-weight:bold; font-variant-ligatures:none !important;'><span style='margin:0px; padding:0px;'>Community water system</span><span style='margin:0px; padding:0px;'> service area boundaries</span></span><span style='margin:0px; padding:0px; font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; font-variant-ligatures:none !important;'><span style='margin:0px; padding:0px;'> describe the geographic </span><span style='margin:0px; padding:0px;'>area </span><span style='margin:0px; padding:0px;'>that receives drinking water from a given</span><span style='margin:0px; padding:0px;'> </span><span style='margin:0px; padding:0px;'>community water system</span><span style='margin:0px; padding:0px;'>.</span><span style='margin:0px; padding:0px;'> </span><span style='margin:0px; padding:0px;'>Knowing these boundaries help to connect water system data (such as, </span><span style='margin:0px; padding:0px;'>compliance status</span><span style='margin:0px; padding:0px;'>) with water system customers</span><span style='margin:0px; padding:0px;'>.</span></span></font><div><span style='margin:0px; padding:0px; font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; font-variant-ligatures:none !important;'><span style='margin:0px; padding:0px; background-color:rgb(255, 255, 255);'><font color='#000000' size='3'><br /></font></span></span></div><div><span style='margin:0px; padding:0px;'><span style='margin:0px; padding:0px; background-color:rgb(255, 255, 255);'><font color='#000000' size='3'><font face='Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif'><span style='font-variant-ligatures:none;'>This dataset contains 44,415 unique service areas across all 50 states. While not 100% comprehensive, these systems cover 99% of all public water system consumers. 42% of systems are sourced from 20 state databases. The remaining systems, those with no state supplied boundary, were modeled using machine learning techniques. This effort used state sourced service areas to train a model on dozens of explanatory variables in order to approximate service areas where none were accessible.</span></font><br /></font></span></span></div><div><span style='margin:0px; padding:0px;'><span style='margin:0px; padding:0px;'><font color='#000000' face='Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif' size='3'><span style='font-variant-ligatures:none; background-color:rgb(255, 255, 255);'><br /></span></font></span></span></div><div><span style='margin:0px; padding:0px;'><span style='margin:0px; padding:0px;'><font color='#000000' face='Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif' size='3'><span style='font-variant-ligatures:none; background-color:rgb(255, 255, 255);'>This dataset used the 2023 Quarter 4 Safe Drinking Water Information System for establishing the universe of community water systems.</span></font></span></span></div><div><span style='margin:0px; padding:0px;'><span style='margin:0px; padding:0px;'><font color='#000000' face='Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif' size='3'><span style='font-variant-ligatures:none; background-color:rgb(255, 255, 255);'><br /></span></font></span></span></div><div><span style='background-color:rgb(255, 255, 255);'><font size='3'><span style='margin:0px; padding:0px;'><span style='margin:0px; padding:0px;'><font color='#000000' face='Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif'><span style='font-variant-ligatures:none;'>For detailed information on this dataset, visit our GitHub repository: </span></font></span></span><font color='#000000' face='Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif'><span style='font-variant-ligatures:none;'>https://github.com/USEPA/ORD_SAB_Model</span></font></font></span></div>
Water System Boundaries
Drinking Water
Water
US EPA
File Geodatabase Feature Class
dataset
EPSG
6.18.3(9.3.1.2)
0
Simple
FALSE
0
TRUE
FALSE
MCLViolationCounts
Feature Class
0
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
0
0
0
Feature geometry.
Esri
Coordinates defining the features.
PWSID
PWSID
String
80
0
0
State
State
String
255
0
0
PWS_Name
PWS_Name
String
255
0
0
Primacy_Agency
Primacy_Agency
String
255
0
0
Pop_Cat_5
Pop_Cat_5
String
255
0
0
Population_Served_Count
Population_Served_Count
Integer
4
0
0
Service_Connections_Count
Service_Connections_Count
Integer
4
0
0
Method
Method
String
255
0
0
Service_Area_Type
Service_Area_Type
String
255
0
0
Symbology_Field
Symbology_Field
String
255
0
0
Original_Data_Provider
Original Data Provider
String
255
0
0
Data_Provider_Type
Data Provider Type
String
255
0
0
Boundary_Method
Boundary Method
String
255
0
0
Method_Basis
Method Basis
String
255
0
0
Method_Details
Method Details
String
441
0
0
System_Type
System Type
String
255
0
0
Verification_Status
Verification Status
String
255
0
0
Verification_Process
Verification Process
String
255
0
0
Verifier_Type
Verifier Type
String
255
0
0
Publisher_Owner
Publisher (Owner)
String
255
0
0
Data_Source_Link
Data Source Link
String
255
0
0
Secondary_ID
Secondary ID
String
255
0
0
Secondary_ID_Source
Secondary ID Source
String
255
0
0
Detailed_Facility_Report
Detailed_Facility_Report
String
255
0
0
Date_Created
Date Created
Date
8
1
0
Date_Modified
Date Modified
Date
8
1
0
Verification_Date
Verification Date
Date
8
1
0
ID
ID
String
255
0
0
Count_of_MCL
Count of MCL
Double
8
0
0
ObjectID_1
ObjectID
Integer
4
0
0
Shape_Length
Shape_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Shape_Area
Shape_Area
Double
8
0
0
Area of feature in internal units squared.
Esri
Positive real numbers that are automatically generated.
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