A recent Sunday afternoon at the normally sleepy Loch Raven Reservoir played out like an episode of "Cops."
At its eastern point, a young man and woman who had been hiking made their way down to the infamous Loch Raven cliffs and jumped into the calm, beckoning waters to cool off.
They were blissfully unaware that across the water, reservoir Ranger Simon Phillips was watching, just waiting for the splash to spring into action.
"We have swimmers in the water," Phillips radioed a fellow ranger and jetted off to cite the swimmers $200 each.
This summer, this will be a common occurrence at the city's three reservoirs — Loch Raven, Prettyboy and Liberty. The rangers have the most members — seven — since they were brought back from a long hiatus three years ago, and they'll be especially on guard for those trying to sneak in a dip.
With more rangers, warnings and citations have been increasing, last year peaking at more than 2,500 just for illegal swimming. Phillips hopes the combination of heavier enforcement, fines, more "no trespassing" signs, and word of mouth will begin to discourage swimmers.
"People see it as a park. It even comes up as a park on Google. They think, 'If it looks like a park, it feels like a park, then it must be a park.' What we do every year is try to convey to people these are not parks," Phillips said. "What more can we do to explain to people, 'We don't want you beyond a certain point.'"
Though illegal — the reservoirs are a source of drinking water for 1.8 million consumers — swimming at the reservoirs is a Baltimore tradition.
The lush forests surrounding the watersheds, what rangers call "the buffer," have the makings of a natural recreational haven.
"I spent my senior spring break here. I might have even brought a date. We just packed up a picnic and went swimming," said Sheila Korman, a dental hygienist from Sparrows Point who was wading Sunday with her husband and two children at Loch Raven.
Collectively, the reservoirs cover more than 24,000 acres of land and water, an enormous area where thousands have been going for decades to picnic, mountain bike, hike, bird watch and fish.
During the summer, the rangers also see increased drug use, alcohol consumption, and late-night mountain-biking. But it's the swimmers that become enemy No. 1.
The nearly 500 square miles of combined watershed area have been a magnet to local residents for years, and there are scattered traces of them hidden everywhere. At one of the cliffs on Loch Raven's southern point, tattered, mottled ropes used by swimmers to jump into the water hang from the trees.
"People have been jumping off the cliffs for decades," Phillips said. "When we get to the peak of season, we could have 30 people in the water at any point."
About 100 people pass through the Loch Raven cliffs on a weekend day during the heart of the busy season, which typically starts in late June, Phillips said.
On Sunday, he waited for a boat ranger to escort the swimmers to the top of the cliffs.
Andrea Watson and a friend had spent two hours hiking around.
"Then a whim took us and we went swimming," said Watson, a 23-year-old who moved to Baltimore from California three weeks ago. "It's been so hot in town lately. We needed an escape." Michael declined to give his last name.
After jumping from a foot-high cantilever, the water was nirvana.
"It was so nice. It was perfectly warm on top for the first 3 feet, and then you dip your feet down and it's just icy cold," she said.
Although they told the boat ranger, Cyras Phillips — no relation to Simon — they knew they weren't supposed to be swimming, they asked Phillips for a break.
"I'm not prepared to do that," he said. "We have far too many people violating these rules for me to let it go as a warning. I know it's frustrating to get caught, but we're all adults. We make choices and there are consequences."
In the three years Phillips has been on the job, he says he's heard all kinds of excuses, and none of them make sense, especially, "I didn't know it was illegal, officer."
"When you come to an area that's privately owned, the onus is on you to find out what you can and can't do," he said.
Swimming, as a potential pollutant, has been banned here since at least the 1920s, said Ranger Luke Brackett.
The city's Department of Public Works, which funds the rangers, also warns that the waters can be treacherous, and most swimmers aren't aware of the currents or the quick change in temperatures when they dive into depths of as much as 90 feet.
Last year, three men drowned, including a 23-year-old Havre de Grace man who went under as he was attempting to cross Loch Raven Reservoir.
"Everybody knows it's illegal, and why it's illegal," said Kurt Kocher, department spokesman. "It's not a swimming pool. There are legal places where you can go swimming. These three reservoirs are for drinking."
Rangers have wide latitude to enforce watershed regulations, and also criminal and traffic laws — a typical enforcement log from May ranged from the mundane, destruction of property, to serious crimes such as possession of a controlled substance and outstanding warrants.
"We're here to protect people from the resources, the resources from the people, and the third thing we do is protect people from people," Phillips said. "We're trying to convey to the public these are not parks."
Swimmers are by far the leading source of concern, with trespassing a close second, according to Public Works.
Though the 24,000 acres they have jurisdiction over can be daunting for their small staff, the rangers have been incrementally ramping up the fines.
Last year, 2,254 people were given oral warnings not to swim, 279 were cited and two people were arrested for "swimming and related activities," according to Public Works.
This past May alone, 207 were given oral warnings by the rangers, and 28 people were cited.
There are other deterrents: "No trespassing" signs of various sizes are widely posted. Fines start at $100 for swimming, wading and trespassing, and, if the rangers choose to process a violation as a misdemeanor, they can be as much as $1,000. Polluters are given the stiffest fine, $500.
All that money ends up at Public Works, which could not provide a total amount. Kocher said it's a small amount in relation to the rest of their revenue.
"If we were out to make to money, we'd be arresting every swimmer. That's why there are so many warnings," Kocher said. "We realize people are young, and people do stupid things when they're young. The idea is, look, we don't want our cliffs eroded. We don't want kids drowning out there. The goal is to get the message out."
The rangers have been accused of being overzealous. Two years ago, mountain bikers complained about being unfairly targeted for using off-limits trails at Loch Raven.
Dave Blum, a trail liaison at the Mid-Atlantic Off-Road Enthusiasts group, said Public Works and the rangers are still encouraging bikers only to use the 12 miles of authorized trails, but that they've moved on to working on a compromise between the two camps and add biking access.
From an environmental point of view, swimmers are not a hazard, he said, at least not as much as runoff from neighboring Cockeysville development.
"It's more of a safety concern," Blum said. "The way rangers have pursued swimmers seems appropriate. I don't think it's egregious if they're really trying to protect people."
Tom Hillegass, a Virginia man who runs swimmingholes.org, a website that lists natural bodies of water throughout the country, said the rangers' concern about safety and cleanliness are legitimate.
"Polluting the waters is a major concern with the reservoirs," he said. And, "There's concern about safety because [the rangers] could be liable."
In Maryland, he added, there's no need to bother with the reservoirs because there are at least 38 natural swimming holes that people could go to.
Some people just like this place more than others. Just nearby where he fined the two swimmers, Phillips found a whole family — Sheila Korman, her husband Chad, and their kids, 7-year-old Chad and 6-year-old Carli — wading on the beachy shores of the reservoir's southeastern point.
Korman, a Baltimore native, prefers coming here rather than some of the other parks, such like North Point State Park and Fort Howard Park, because it's cleaner.
"We saw the sign. We apologized. We just let the kids get their feet wet and cool off," Korman said.
Phillips, who is cordial when addressing trespassers, almost avuncular, let the Kormans slide with just a warning. His goal is not to arrest people or issue fines — they don't have that kind of manpower.
"It's important to get word out on what's safe and appropriate to do," he said.
For Watson, though, the $200 fine had the intended deterrent effect.
"Coming back? To mountain-bike, maybe. Definitely not to swim," she said. "I didn't know about any of this. That's what's frustrating. I'm not part of the big problem they're worried about. I'm just an idiot who walked in blind."