I think we all agree with the generally lacking qualities regarding two point tangos as you define it when employed on a Record of Survey. When that same approach is used to show a boundary for a topographic map I do not think it is negligence.Warren Smith wrote: Tue May 20, 2025 1:25 pm Mikey,
I think Dave is referring to the "two point tango", where two monuments are accepted, and the dimensions (metes) are thrown on the ground without reference to the bounds. Previously set monuments are then called "off" or out of position. I agree with him, there seems to be no authority for that methodology.
As I explained above, if the following is true:
1) there is some recorded Record of Survey that shows my entire subject parcel.
2) I review that map and it looks technically correct ( aka good).
3) I find 3-4 monuments to confirm I have a good fit and there is no material discrepancy between my measurements and the record.
4) I show the record bearings and distances on my topo and reference the record map and show the found monuments on my topo.
Then I do not consider myself negligent. Dave says I am.
FWIW, We started out talking about the siteplan situation, IE barns and setbacks. That sort of planning clearance is the use for a GIS siteplan that has no field work. I thought we covered that topic pretty well, and when Dave brought up a field survey with a note about record boundaries I figured he thought so too, and so I assumed we were pivoting to that particular discussion.
Thats why I asked Dave several questions (which he did not answer) so that we could make it clear where our differences originate. To reiterate:DWoolley wrote: Tue May 20, 2025 9:58 am A record boundary refers to the geometric figure produced from a metes and bounds description or subdivision map applied to field measurements. ( bolding mine)
Do you accept that someone else's RoS can be good enough that you do not need to file a new RoS after doing a field survey?
Is "material discrepancy" something a professional surveyor should be able to determine?
Instead of answering my questions, he asserted that I am literally ALWAYS supposed to ignore previous work that I think was done well and redo it.
I can think of many textbooks and manuals that say I am supposed to follow in the footsteps of the previous surveyor and hold their monuments as much as I can. Especially once I field verify them and review their map and think its good. Does anyone other than Dave really think we should never accept another surveyor's map for a boundary resolution since that would be abandoning our professional duty?DWoolley wrote: Tue May 20, 2025 2:58 pm You will not find a legitimate textbook, licensing exam, or ethics manual that suggests, “If you like the other guy’s work, just go with it.” That’s not professional judgment—that’s professional abandonment.
Consider the actual real world difference between three scenarios:
Holding two monuments from a record map and showing a boundary on a topo that repeats the record map's bearings and distances.
Doing the same fieldwork and showing bearings that are a few seconds different from record and distances a few hundredths different from the record boundary because the line connecting the actually tied monuments is dimensioned. The total difference is immaterial to the boundary location, but has been quite perplexing to various planners and end users of the map who are surprised that the boundaries shown are not the same as their map/deed/etc.
Then there is the third scenario: Find the same 3-4 monuments form that map, then find 5 more that have no relation to the barn being built, file a record of survey to show that the previous map was wrong, and the real distance between these controlling monuments is really 0.03 hundredths more (or less), write a survey narrrative that asserts how I found a materially discrepancy and properly resolved the boundary, set monuments at literally every corner shown on my map that is missing a monument and then file it with the county. Oh yeah, and bill my client for a ROS. What does the review costs run in Southern Cali these days?
The entire point I am trying to make is that a record boundary shown on a topo map is not negligent, it is just saying that there is not enough difference between what I measured and what the last person measured and showed on their map to matter. A decision that I am literally licensed by the state to make.
Mikey Mueller, PLS 9076
Sonoma County
PS I fail to see how references to texts and source materials is a bad thing. Asserting my opinions without backing is just an editorial. Supporting documents and cited facts let people evaluate my point better. At least I think so :)