Well Logs, Reporting, and Division Forms
What this domain tests
This domain tests the driller's reporting duties: the well driller's report, accurate lithologic and construction records, filing deadlines, and the Division forms used to request approval and document completed or abandoned wells.
Core rules and concepts
- NRS 534.170 requires the driller to keep a careful log and file a well driller's report with the State Engineer, generally within 30 days after completion. The report is required even for a dry hole or an unsuccessful well.
- The log must identify the well location and permit number, total depth, casing size and depth, screen or perforations, annular seal, water-bearing zones, static and pumping water levels, yield, and test method.
- Lithology should be described from actual cuttings or samples, not guessed from nearby wells. Depths and units must be consistent.
- Division forms commonly include the application for permit to drill, the well driller's report, and abandonment or variance requests. Each form has its own certification and signature requirements.
- Accurate reporting supports water-right administration, aquifer mapping, and later well repairs. A false or incomplete report can mislead the State Engineer and the next driller.
Worked example
A well is completed on June 1. The driller records 80 feet total depth, 20 feet of casing, a 40-foot screened interval, static water at 35 feet, and a yield of 25 gallons per minute. The report is due by July 1. If the well had been dry, the driller would still file the report, showing the dry interval and total depth. Omitting the dry hole would leave a gap in the basin record and violate the reporting duty.
Traps that cost marks
Filing only successful wells; reporting estimated rather than measured water levels; omitting the permit number; mixing feet and meters; and failing to document abandonment.