TG 28
Partial source coverage. Status and company roles are reported by each source, not independently verified as current. Unknown does not mean zero.
- Name / source ID
- 03390764
- Borehole / source record ID
- 03390764
- Sector
- Geothermal
- Derived purpose group
- Temperature gradient
- Operator in source snapshot
- Not reported / not verified
- Recorded spud date
- Not reported / not verified
- Recorded completion date
- Not reported / not verified
- Latitude / longitude (WGS84)
- 38.888674 / -122.672138
- Source-reported measurements
- Not reported / not verified
- Status reported by source
- P
- Source accessed
- 2026-10-02
- Source snapshot date
- Not reported / not verified
- Original coordinate reference system
- EPSG:3310 (NAD83 / California Albers)
| Source-reported measurements | Value | Reference |
|---|
CalGEM — California public geothermal wells ↗
Source accessed:
Reuse terms: review-source-terms
Source terms and attribution ↗California Department of Conservation, Geologic Energy Management Division (CalGEM). Normalized by Wellficent.
Nearby wells and heat flow
These tools are descriptive: not forecasts, reserve estimates or investment advice. Source coverage is partial; unknown does not mean zero.
| Name | Distance | Source-reported measurements | Source catalogues |
|---|---|---|---|
| TG 28 | 0.00 km | Not reported / not verified m | CalGEM — California public geothermal wells |
| LC 74-12 | 0.55 km | Not reported / not verified m | CalGEM — California public geothermal wells |
| Robbins 78-1 | 0.94 km | Not reported / not verified m | CalGEM — California public geothermal wells |
| TG 27 | 1.48 km | Not reported / not verified m | CalGEM — California public geothermal wells |
| TG 27 | 1.48 km | Not reported / not verified m | CalGEM — California public geothermal wells |
| LC 74-8 | 1.57 km | Not reported / not verified m | CalGEM — California public geothermal wells |
| BG 73-24 | 1.82 km | Not reported / not verified m | CalGEM — California public geothermal wells |
| 71 39 | 2.13 km | Not reported / not verified m | CalGEM — California public geothermal wells |
| LC 75-4 | 2.23 km | Not reported / not verified m | CalGEM — California public geothermal wells |
| BG 73-11 | 2.41 km | Not reported / not verified m | CalGEM — California public geothermal wells |
| HU 1 | 2.65 km | Not reported / not verified m | CalGEM — California public geothermal wells |
| Bouscal 1A | 2.96 km | Not reported / not verified m | CalGEM — California public geothermal wells |
Subsurface temperature and heat flow
Compare bottom-hole temperatures with depth and see measured heat flow near wells: context for geothermal reuse.
| Name | Distance | Subsurface temperature and heat flow | Quality flags |
|---|---|---|---|
| R24-P020925 | 0.19 km | 257.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P021119 | 1.63 km | 690.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P021137 | 1.84 km | 324.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P021094 | 1.94 km | 117.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P021143 | 1.94 km | 335.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
IHFC · Global Heat Flow Database, Release 2024 (v. 2026.03) ↗
Source accessed:
Reuse terms: CC-BY-4.0
Source terms and attribution ↗Global Heat Flow Data Assessment Group et al. (2024): The Global Heat Flow Database: Release 2024. V. 2026.03. GFZ Data Services. https://doi.org/10.5880/fidgeo.2024.014 Licensed under CC BY 4.0. Wellficent shows parent-level site values and selected metadata; values are not modified.