20260630
16075800
FGDC CSDGM Metadata
FALSE
GIS.WATER_PUB_WELL_20YR
002
-95.567915
-89.218961
36.040416
40.553710
1
Geographic
GCS_North_American_1983
Angular Unit: Degree (0.017453)
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1.0
20241029
14093200
20241029
14093200
Lyndsey Bennett
Missouri Department of Natural Resources, Water Resources Center
Geologist
(573) 368-2151
800-735-2966
(573) 368-2193
111 Fairgrounds Road
Rolla
Missouri
65401
US
lyndsey.bennett@dnr.mo.gov
Monday through Friday 8 a.m. to 5 p.m. Central time
20241028
ArcGIS Metadata
1.0
Enterprise Geodatabase Feature Class
Public Drinking Water Supply Wells - TWENTY YEAR
2024-10-07
Missouri Department of Natural Resources (MoDNR), Water Resources Center (WRC).
Missouri Department of Natural Resources (MoDNR), Division of Environmental Quality (DEQ), Water Protection Program (WPP), Public Drinking Water Branch (PDWB).
The Center for Applied Research and Environmental Systems (CARES).
vector digital data
This shapefile represents the estimated distance groundwater around some public water system (PWS) wells will travel in a twenty-year period. See process description.
This layer was originally developed for use in the MoDNR-funded Vulnerability Assessment (VA) of Missouri Public Drinking Water to Chemical Contamination Project at CARES. The VA project was implemented in 1991 by MoDNR. MoDNR contracted with CARES to conduct this assessment. The project is designed to determine which, if any, public water supplies are threatened by any chemicals being tested under the Safe Drinking Water Act.
Missouri Department of Natural Resources, Water Resources Center
Lyndsey Bennett
Missouri Department of Natural Resources, Water Resources Center
Geologist
(573) 368-2151
800-735-2966
(573) 368-2193
111 Fairgrounds Road
Rolla
Missouri
65401
US
lyndsdey.bennett@dnr.mo.gov
Monday through Friday 8 a.m. to 5 p.m. Central time
Missouri
Public water system (PWS)
drinking water
water well
well
twenty year time-of-travel radius
Public water system (PWS)
drinking water
water well
well
twenty year time-of-travel radius
Missouri
Although all data in this data set have been compiled by the Missouri Department of Natural Resources, no warranty, expressed or implied, is made by the department as to the accuracy of the data and related materials.
Although all data in this data set have been compiled by the Missouri Department of Natural Resources, no warranty, expressed or implied, is made by the department as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the department in the use of these data or related materials.
Access to these data by persons other than employees of the MoDNR shall be granted only in response to requests to the Public Drinking Water Branch, which can be made using the contact information in the Distribution Information section of this metadata.
Esri ArcGIS Pro 3.14
true
-95.573057
-89.024852
40.567110
36.015944
publication date
2032-10-20
The metadata content associated with this data set was reviewed by Elizabeth Retherford on 20241021. The metadata content review is intended to ensure that all of the required content is present. The components comprising the metadata document were reviewed by Elizabeth Retherford on 20241021. The metadata component review is intended to ensure that required metadata components are consistent and understandable to data consumers.
1
-95.567915
-89.218961
40.553710
36.040416
none
Wells that had a zero radius for an (R20yr) were removed from the data set.
Facilities that have not submitted locational information are not included in this data set.
Locational accuracy varies based on the method used to locate the feature. Locations derived from United States Geological Survey (USGS) digital raster graphics (DRG) 7.5 minute topographic (topo) quadrangle maps are accurate to no more than 40 feet. Locations derived from USGS Digital Orthophoto Quarter-Quadrangles (DOQQ) are accurate to no more than 33 feet. Data collected using global positioning system (GPS) receivers are accurate to somewhere between 10 and 100 feet. Locations derived using the Public Land Survey System (PLSS) are accurate to no more than 165 feet. Specific accuracy for each record is given under the attribute named ACCURACY in the PUB_WELLS data set
This data set contains no vertical information
1. A radius was calculated around each PWS well using the cylindrical displacement method, R20yr = 149.6 *sqrt[20Q/nH] where Q= the average well production rate in gallons per minute (gpm) based on reported or estimated yearly total production, n= aquifer effective porosity, and H= saturated thickness of the aquifer (the total depth of the well minus the depth to the static water level). 2. Using the location of the well a point file was created. 3. Using a modified version of the buffer wizard a buffer was drawn based on the R20yr value. 4. Wells that had a zero radius for an R20yr were removed from the shapefile. 5. Using the unique ID field as a link, additional attributes were added to the table.
2024-10-07
Lyndsey Bennett
MoDNR WRC
Geologist
(573) 368-2151
800-735-2966
(573) 368-2193
111 Fairgrounds Road
Rolla
Missouri
65401
lyndsey.bennett@dnr.mo.gov
Monday through Friday 8 a.m. to 5 p.m. Central time
This layer was originally developed for use in the MoDNR-funded Vulnerability Assessment (VA) of Missouri Public Drinking Water to Chemical Contamination Project at CARES. The VA project was implemented in 1991 by MoDNR
Source Water Areas in Missouri
Source Water Areas in Missouri
2023-04-18
WRC, PDWB, CARES
vector digital data
Unknown
2023-04-18
2460
PUB_WELL_20YR
Public drinking water wells twenty year time-of-travel buffer.
WRC
Feature Class
2460
OBJECTID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
UNIQUEID
Unique identifier (ID) used by Water Resources Center (WRC) for tracking data entry. Primary field used for the linking of various database tables used to create data layers.
WRC
Unique id
WELLID
A five-digit unique identification number for each well assigned by Public Drinking Water Branch. This identifier is used to link public water system features to the SDWIS.
ESRI
-9999 if unknown
PWSSID
A seven-digit public water system identification number (PWSSID) assigned by the Public Drinking Water Branch that uniquely identifies each public water system. This is an identifier used in linking public water system data to the Safe Drinking Water Information System (SDWIS) and other data that use the seven-digit identification number. SDWIS is the official tracking system of public drinking water facilities for the state of Missouri. It contains additional information such as monitoring data, contact information, and treatment.
PDWB
PWSSNAME
Public water system (PWS) name.
WRC
blank if unknown
TWEYRSWA
Estimated distance in feet that groundwater around some public water system wells will travel in a twenty-year period.
WRC
DDLAT
Approximate latitude of the well in Decimal Degrees referenced to the North American Datum of 1983.
Shape_Leng
Shape_Leng
Double
8
38
8
DDLONG
Approximate longitude of the well in Decimal Degrees referenced to the North American Datum of 1983.
Shape.STArea()
Shape.STArea()
Double
0
0
0
Shape.STLength()
Shape.STLength()
Double
0
0
0
dataset
EPSG
6.5(3.0.1)
Simple
FALSE
2460
TRUE
FALSE