Four city workers were busted — three for assault — in separate incidents Sunday, authorities said.

Parks Department employee Renee Rowell-White was nabbed in Queens for allegedly punching a 37-year-old woman in the face during an argument over a man.

The women, who claimed to be strangers, were inside a building on Beach 32nd Street in Edgemere just after 2 a.m. when the fight broke out, cops said. Rowell-White, 50, was charged with assault and harassment.

Shortly after, in Brooklyn, school-crossing guard Juanita Williams, 47, was arrested for allegedly assaulting her 30-year-old daughter in Canarsie.

Williams was charged with menacing, assault, criminal possession of a weapon and harassment for slapping her kin in the face and threatening her with a broomstick, police said.

School-safety agent and Brooklyn resident Rahdasia Davenport, 22, was then busted just before 4:30 a.m. for allegedly punching her friend multiple times in the face, scratching her on the back of her neck and flashing a knife.

Cops said Davenport and her 23-year-old friend began arguing inside her East New York home when the dispute turned violent. She was charged with menacing, assault and criminal possession of a weapon.

Meanwhile, an off-duty FDNY paramedic was arrested just before 6:30 a.m. for drunkenly crashing his car in the westbound lane of the Brooklyn-Queens Expressway near Metropolitan Avenue in Ridgewood, cops said.

Daniel Mahlmann, a 27-year-old EMT, allegedly wreaked of alcohol when responding officers arrived. He was charged with DWI and refusal to take the breath test.