Walk 72 minutes and drink the water.
You can Passul the water by using it for anything. Heat up your pocket knife and dip it in the water, and you got it all to yourself.
Also, if you aren’t alone you can be Mafkir it to your friend and he’ll let you drink from it. you might be Mechuyav to buy it off him, but since there is no water nearby the price will be more than a Chomesh, anyhow. Otherwise use your friend to be Zoche the water for a Goyeshe friend who would let you drink but you’d have to ask before using it to wash.
Just for the record: Al Nekiyas yadayim is good for the morning, where the Takana is about Chadashim labkarim or Mekomos Mechusim. Where you need Tahara nothing will help.