Sudden low water pressure in house
I suddenly lost almost all water pressure in the entire house. While doing a load of laundry, about halfway through, the washer could not pull enough cold water. I switched to hot and it pulled fine from the hot water heater tank. Immediately after, all of the faucets would only trickle. The showers held onto pressure longer, but also dropped. The one in the master also had some type of deposits in the water. Blackish, larger than a grain of dirt. Toilets take about 20 minutes to fill after bring flushed.
I'm a first-time homeowner (moved in a moth ago) so any suggestions or info would be great. I know that I will have to have some one come out, but I am trying to not go in blind. Here a few things about the house, if any of them help:
Built in 58
Copper pipes
City water/sewage (closed, no customer service, but no reports of work in the area, neighbors across the street are fine, not sure about next door)
Inspection turned up no problems in the plumbing
Sprinklers on well are fine