Colorado Department of Natural Resources Home
Dataset Description
The Division of Water Resources, in cooperation with various local groundwater management districts and partners, operates a statewide network to monitor groundwater levels.
Columns in this Dataset
Column Name Description Type
Aquifer(s) Aquifer, or aquifers, in which well is located (as determined by the data source) Text
Base of Grout Depth from surface to base of grout (feet) Integer
Bottom of Perforated Casing Depth from surface to bottom of perforated casing (feet) Integer
County County where the well is located Text
Data Source Primary source/provider of well measurement data Text
Date Date of last measurement date
Depth to Water (ft) Depth from measure point to water level in well (feet) float
Designated Basin Eight established geographic areas in Colorado's Eastern Plains where users rely primarily on groundwater for water supply Text
Direction E/W Direction of measurement from East/West section line Text
Direction N/S Direction of measurement from North/South section line Text
Distance E/W Distance from East/West section line (feet) Integer
Distance N/S Distance from North/South section line (feet) Integer
Div DWR Water Division Integer
Elevation Surface elevation at the location of the well (feet above mean sea level) real
Elevation Accuracy Accuracy of the ground surface elevation Text
Elevation of Water (ft) Elevation of water level in well (feet above mean sea level) Decimal (10,2)
Latitude Latitude (decimal degrees) Decimal (8,6)
Location Accuracy Accuracy of location coordinates Text
Location Number Bureau of Reclamation location identification string based on the PLSS location Text
Longitude Longitude (decimal degrees) Decimal (9,6)
Management District Thirteen local districts, within the Designated Basins, with additional administrative authority Text
Measure Point Above Land Surface (ft) Measuring point height above land surface (feet) float
Measured By Name of the entity that measured the water level depth Text
Modified Last date time that this record was modified in the DWR database DateTime
Owner Person(s) or entity associated with well either as applicant or primary contact Text
Permit Concatenation of permit number, suffix code, and replacement code Text
PM Principal Meridian of well’s legal location - there are 5 principal meridians in CO: Sixth (S), New Mexico (N), Baca (B), Costilla (C), and Ute (U) Text
POR Count Count of measurements in the well’s period of record Integer
POR End Date of last measurement in the well’s period of record DateTime
POR Start Date of first measurement in the well’s period of record DateTime
Publication Name Name of DWR Basin Summary publication in which well is included, if applicable Text
Q10 Legal location: 10 acre quarter section Text
Q160 Legal location: 160 acre quarter section Text
Q40 Legal location: 40 acre quarter section Text
Range Legal location: A number in the format “nnnd” where “nnn” is the range number and “d” is the direction either East or West Text
Receipt Permit application receipt number Text
Section Section number - township, range divided into 36 one square mile sections; “U” indicates location in Ute Correction (Division 7 only) Text
Top Perforated Casing Depth from surface to top of perforated casing (feet) Integer
Township Legal location: Township number and direction Text
USGS Site ID US Geologic Survey well identifier Text
UTM X The x (Easting) component of the Universal Transverse Mercator system. (Zone 13, NAD83 datum) Decimal (8,1)
UTM Y The y (Northing) component of the Universal Transverse Mercator system. (Zone 13, NAD83 datum) Decimal (8,1)
Water Level Change (ft) Elevation of water in well on this date minus elevation on most recent prior date (feet) Decimal (10,2)
Water Level Depth Depth to water below land surface (ft) on measurement date float
WD DWR Water District Integer
WDID DWR unique structure identifier (first two digits are the water district) Text
Well Depth Completed depth of well (feet) Integer
Well Name Name of well in DWR database Text