How do you know if your water runs through one of these goosenecks? Well, you don’t. Not exactly. The indication of a gooseneck is that they are always attached to galvanized steel or iron pipes. Not every galvanized pipe has a gooseneck. SPU guesses that about 8,000 homes run their water through galvanized steel. It is probable that one in four of those uses a goose neck, so 2,000 homes at risk of exposure.
You can now check to see if you drink galvanized water, thanks to this neat map from SPU:
http://bit.ly/1Sy1wSL is a handy map that shows what kind of water pipe the utility feeds to your house.
Do you have one of these?
The map shows the pipe from the main in the street to the meter. This pipe is owned by the utility. The pipe from the meter to the house is owned by the homeowner and installed by the builder - it can be different than the feed to the meter.
The goose neck being talked about is the connector between the city main and the feed to the meter.
If the map says copper - you have nothing to worry about from the utility connection (goose neck).
Of course your piping may or may not have lead solder if you have copper piping installed prior to the year 2000 or so. This issue is another matter and is probably a very low ppm lead risk in most homes.
If you are worried about it you can have your water tested but the risk is low for most of us.