| Dataset Description | |
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Division of Water Resources Geophysical Logs received during the completion of a well. A detailed record (a well log) of the geologic formations penetrated by a well. Contains Aquifer Top, Bottom, and Saturated Sand Thickness. Geophysical Log images associated with oil and gas exploration are typically stored in the Colorado Oil and Gas Information System (COGIS) https://cogcc.state.co.us/data.html |
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| Columns in this Dataset |
| Column Name | Description | Type |
|---|---|---|
| Aquifer Picks | Aquifers identified from geophysical log | 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 |
| 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 and direction from East/West section line (feet) | Integer |
| Distance N/S | Distance and direction from North/South section line (feet) | Integer |
| Div | DWR Water Division | Integer |
| ECMC API | Colorado Energy and Carbon Management Commission well identifier | Text |
| Elevation | Surface elevation at the location of the well (feet above mean sea level) | real |
| Elevation Accuracy | Accuracy of the ground surface elevation | Text |
| 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 |
| Log Bottom | Bottom depth of performed geophysical log (feet) | Integer |
| Log Date | Date that geophysical log was recorded | date |
| Log Top | Depth to depth of performed geophysical log (feet) | Integer |
| Log Type | Type of geophysical logging performed | Text |
| Longitude | Longitude (decimal degrees) | Decimal (9,6) |
| Modified | Last date and time this record was modified in the DWR database | DateTime |
| More Info | Hyperlink to additional details | Text |
| Permit | Concatenation of permit number, suffix code, and replacement code | Text |
| Permit No | Permit Number | Integer |
| Permit Rpl | Permit Replacement code | Text |
| Permit Suf | Permit Suffix 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 |
| 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 |
| 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) |
| WD | DWR Water District | Integer |
| WDID | DWR unique structure identifier | Text |
| Well Depth | Completed depth of well (ft) | Integer |
| Well ID | Unique ID of well in DWR database | Integer |
| Well Name | Name of well in DWR database | Text |