A worked example of a finished survey: Halverson Ranch, Fresno County, California. 18.3 km² surveyed; the highest-ranked zone sits at 36.1780°N 120.3005°W with an estimated yield of 48–82 m³/h and a water table between 78 and 96 metres, both quoted P10 to P90. The hole is drilled below the water table. Example data, not a record of a well that was drilled.
Groundwater survey
Know where to drill.
Draw a boundary. Beneath scores every cell of ground under it, ranks which ground is worth investigating and which to rule out, and shows the evidence behind each call. Minutes, from your desk.
Read from
- California DWR wells
- US Groundwater Database
- Copernicus GLO-30 elevation
- USGS Central Valley model
What lands
Four things, every survey.
Everything the analysis produced, on screen and in files you can take to a driller.
01
Ranked sites
3 zones, strongest first, each with a depth band, a yield band and a confidence.
02
The scored surface
3,308 cells under this parcel, each scored 0 to 1, downloadable as GeoJSON.
03
Evidence, itemised
10 items: 5 support the ranking, 5 argue against it. Each one is listed with its source.
04
A field report
One PDF: every ranked site with its coordinates, water band, yield and confidence, and a plain statement of what the survey does not tell you.
Price
Priced by the parcel.
Pay per map. The cost appears on the boundary you drew, before anything runs. Plans work out cheaper across several.
See the plans- Up to 25 km²one map$59
- 25–75 km²one map$119
- 75–150 km²one map$199
- Field plan4 maps a month$49/mo
Your turn
Read your own ground.
Draw the boundary and the survey does the rest: every cell scored, the best sites ranked, and the evidence for each one filed underneath it. One parcel, one price, no subscription to start.
From $59 a parcel. The cost shows on the boundary before anything runs.







