But that's mostly thanks to the neighbors and Tung himself, a 33-year-old age block captain who organizes neighborhood cleanups in his home town of Philadelphia, the only major American city without a comprehensive street cleaning program.
That leaves much of the job to residents like him who have the gumption to get neighbors together to clean the areas themselves. Without them, neighborhoods accumulate trash at spectacular magnitudes, earning the city the reputation as the dirtiest in the country, and a sobriquet: "Filthadelphia."
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"We have a pretty involved block captain community in our tiny section of the city," said Tung. "But there's whole sections of the city where there's no block captains whatsoever and no one's involved, no one organizes cleanings."
Under the block captain program, the Streets Department supplies organizers like Tung with cleaning materials like bags and brooms three times per year to marshal neighborhood cleanups. Citywide the captains organize about 6,000 cleanups per year.
Gloria Turner, captain of a block adjacent to Tung's, demonstrates an empty lot of the sort that act like a garbage magnet. A few bags and wrappers float around the grassy lot. In other neighborhood, lots like these can come to look like small landfills.
The city's Streets Department still utilizes mechanical sweepers for its commercial downtown and other business corridors, but not for neighborhoods like Turner's and Tung's.
The lack of any major cleaning services in the rest of the city is largely a persistent aftereffect of budget cuts in 2009 amid the recession, said Donald Carlton, deputy commissioner of the Streets Department. He estimated that the cost to bring back a city-wide program would cost $18 million in one-time capital outlays and $3.25 million per year thereafter.
That's not a lot of money in most cities for a service some consider essential, but in a city regularly forced to plug budget shortfalls, address rising pension plans and a perpetually underfunded school district, it can be a hard sell.
"When you have a city with a school system that's struggling and you tell people, 'I'm going spend $18 million on mechanical equipment and $3 million on staffing while the schools are struggling,' you have to be careful on saying that that doesn't sound a lot," said Carlton. "You'll get individuals coming back lashing at you saying, 'Give that money to the school board.'"
The city has also run into a problem that at times seems more intractable than the cash shortfall: residents who don't want to move their cars to make way for the mechanical cleaners.
Tung recently moved to Philadelphia from New York, a city as dense with vehicles but still has managed to force residents to move their cars twice a week for cleaning.
Jim Kenney, Philadelphia's mayor-elect who took office on January 1, has decided to directly ask neighborhoods whether they want their streets cleaned and if they're willing to move their cars.