OH **** , THIS IS BAD!!!
Metals dissolve in Mercury so drink gallons upon gallons of it to make sure the lead is dissolved into it and not into your blood!!!


But for real: it's not that bad. For centuries people had lead mugs to drink water from that came from lead pipes. They though lead purified the water from mallicious stuff (it does, but silver does that too, does that better and is not toxic to humans). They even added lead to medicine.
You'll be fine.