An NYPD cop heroically jumped into a murky and polluted Queens waterway to save a woman from drowning last week, harrowing video shows.
The fearless Harbor Unit officer jumped into Newtown Creek around 4:45 p.m. Friday after pilings in the water prevented the police boat from getting close enough to the woman.
An attempt at tossing an inflatable safety jacket also failed, leading the heroic officer to make a drastic decision…