I have read several post about this same type of issue with a multitude of suggestions to correct the issue.
My issue has me a bit baffled.
I have a shallow well, depth unknown as I cannot remove the cap at the top of the pipe to place a weighted rope into the pipe to determine depth of well. The age of the well is 40+ years or more I would guess.
There is a single pipe that draws the underground water from the well that appears to be iron or metal of some sort.
At ground level, a foot below the top of the pipe there is a connection resembling a cross with four openings, top, bottom,left and right side.
The bottom opening is connected to the pipe that draws the water from the well, the top opening is capped (which I cannot remove), the right opening is attached to a length of pipe that runs to the bank of the creek behind my house that has a constant flow of water, and the left opening is attached to a pipe that runs to the pump under the house to supply household water.
My problem is this. The water that runs steadly from this overflow pipe that drains into the creek is crystal clear.
My household water has turned brown with with large amounts of black dirt. The longer I leave the water running, the worse it gets.
This has been going on for about a week. I have had sporatic incidences of small amounts of this black dirt over the years, generally after heavy rain storms that clears up in a day or so.
What has me baffled is this. If there is an issue with the well going dry, corrosion or hole in the pipe
clogged screen in the well pipe, collapsed soil in the well, etc., why would the overflow water be clear and my household water be brown and dirt filled?
It seems reasonable to me that if there is an issue with the well or pipe, I should have brown dirty water also coming from the overflow pipe the same as I have when I turn on the household water.
A side note, I did replace the pump a few weeks ago, a 1/2 hp shallow well pump with a small, maybe 8 gallon pressure tank attached.