Me thinks thats not an auto level youre using if you have a receiver on the rod. ah, interesting. We have a Lasermark LMH self-leveling Rotary La...

Thanks for all the feedback. Five years ago I surveyed the top of casing (TOC) elevations of 5 monitoring wells (MWs) we installed. Typically we wou...

@loyal Yeah.  I figured as much, but needed to ask.   Although we record water level depth to 0.01', the difference in groundwater elevati...

@paul-in-pa Yeah, I always shoot to a "benchmark" to begin.  Most of the time I assign an elevation value to that benchmark because we don't nee...

@paul-in-pa I'm not a professional surveyor.  I took a course in college about 1983 and used it from time to time at work when I needed to deter...

@dave-lindell OK.  That brings back memories.  I actually calculated the HI correctly.  Wouldn't have figured out the foresight elevat...