Position of the water pipe unknown

No, the building application is finished and will be submitted shortly - the water pipe is indeed on the street and at least according to the signs / statements from the offices on the property it is connected.

Who knows, maybe the specialist employees in the respective offices / authorities are all "intern vacation substitutes," but maybe not. You or you all are actually the first to vehemently declare an existing pipe as unlikely. What is ultimately true will surely become clear in the end.

Yes, that's exactly the line of thought why I asked here once - since I also see the responsibility with the water association. I am happy to do 1-2 exploratory excavations, but I am only conditionally willing to repeatedly carry out exploratory excavations along the fence over 20 meters wide (on my property side!) Because it is simply a day's work each time and not exactly a picnic. I will probably do a few more excavations when the weather is good. Otherwise, just the application later and then we'll see further.

Who knows, maybe the specialists in the respective offices / authorities are all just "intern vacation substitutes," but maybe not. You or you all are actually the first to vehemently declare an existing pipeline as unlikely.

Maybe "turn on your brain" and "remember your education" are not explicitly stated in their employment contracts, and they accordingly dare to refuse these services. As a water worker, one should know that you don't build dead pipelines, poorly flushed spots are breeding grounds, and the like. More than the position of the valve can hardly be indicated by the sign on a virgin fallow plot.

What will ultimately be true will surely become clear later.

In any case, the attempt to burden you with the investigation is audacious (and quasi an act of vindication to suggest: brazenly stupid).

Once again: You apply for the connection and submit a site plan as an attachment showing where the connection to the house should be made. They will then carry that out. Where they lay the branch line from the main line or whether one of them gets the idea to look for a dead line to connect to is not your problem. On the contrary: if you start excavating the public ground in several places up to 150 cm deep, you might even be accused of property damage if something settles badly and the street becomes fragile. I wouldn’t do that.

Just to avoid any misunderstandings briefly, especially since I did not even write that: I have conducted and will only conduct search excavations at the property boundary on my property. Of course, I am not doing anything on public ground. Moreover, there should be no water or the like in the pipe, as it is sealed from both sides, i.e., from the valve (which should normally be closed since installation) and from the end cover. So we are most likely talking about an empty plastic pipe, which makes non-invasive searching with corresponding means on public ground very difficult.

Anyway – as I just wrote, I will do 1-2 more search excavations and then in case of doubt this will have to be clarified later in the course of the regular application process.

My actual question to the community was not about whether a pipe lies there or anything else, but whether a water association can wriggle out of clarifying obviously missing or incomplete pipeline maps here. I also think that this behavior is brazen, but nowadays, unfortunately, you often only get ahead with facts and legal grounds at offices/authorities.

But why do you continue to search when 1. it is not your task and 2. a possibly existing connection might not be used at all later?

My actual question to the community was not whether there is a pipeline there or anything else, but whether a water association can wriggle out of clarifying obviously missing or incomplete pipeline maps here. I also believe that this behavior is brazenly arrogant, but unfortunately these days you often only get ahead with authorities / agencies with facts and legal grounds.

You apply. They do nothing? > complaint to the supervisory authority, action for failure to act. They say "You must" > demand a legally binding decision on that, file an objection. Often it is enough if the lawyer just calls. One can give bureaucratic loafing a dose of its own medicine.