Staff Writer
Greg Sparks slipped into his wet suit and sat on the edge of The Boathouse dock, letting his feet and legs dangle in the Savannah River. He took a breath, gave a push and submerged.

Michael Holahan/Staff
Greg Sparks trains for the Ironman 70.3 by swimming in the Savannah River near The Boathouse.

Michael Holahan/Staff
Greg Sparks trains for the Ironman 70.3 by swimming in the Savannah River near The Boathouse.

Michael Holahan/Staff
Mike Grady talks to the swimmers before they practice for the Ironman competition by swimming in the Savannah River.

Michael Holahan/Staff
Swimmers head to the dock at the downtown marina before they practice for the Ironman competition by swimming in the Savannah River.

Michael Holahan/Staff
A swimmer jumps into the water to practice for the Ironman competition.

Michael Holahan/Staff
A swimmer practice for the Ironman competition, which is scheduled for Sept. 26.
When he came up for air, he let the water run over his face, not thinking twice about the water running into his open mouth.
River samples this month showing elevated bacteria levels near the city's storm drains haven't affected his training schedule, he said. And he's not alone.
More than 40 athletes participated in a 7 a.m. river swim Saturday in preparation for the Sept. 26 ESi Ironman 70.3.
"Our feeling is if it's really that big of an issue, there'd be some signs out telling us not to swim," Sparks said.
While water samples again tested positive Tuesday for fecal coliform, a form of E. coli, athletes training for the upcoming Ironman are unmoved. Because the danger is mostly at the base of the storm drains, city environmental officials said swimmers have no reason to worry.
"As long as they stay away from the immediate vicinity of the outlets of the storm drains, they should be fine," said Garrett Weiss, the manager of the city's stormwater and environmental section.
Weiss said two components go into hazards associated with contamination -- concentration and flow rate. With the vastness of the Savannah River, contamination at storm drains does little to the water miles out in the current.
Like smoke coming off a fire, the densest and thickest contamination is at the source, Weiss said.
Adding to common risks associated with swimming in natural bodies of water, Tuesday's samples confirmed that Second Street might have a sewage problem affecting the river.
Weiss said the samples showed no E. coli near storm drains at Forsythe Street but a high concentration of contamination near Second Street. More tests are scheduled for early next week.
Ironman participant Holly Harper said she won't change anything about her training schedule other than maybe adding nose plugs to her outfit. Maybe.
"If they could show it was out in the current where we swim, I might hesitate a little bit," Harper said. "Even then I don't know. People aren't overly concerned right now."
Brian Patterson, a founder of local triathlon club TriAugusta, said his group will still hold weekly swims in the river to prepare for September's race.
His group is keeping athletes up to date with the newest sample results and keeping members informed through Facebook posts on the TriAugusta page, he said.
But for now, TriAugusta swimmers can still be spotted bobbing in the Savannah River at 7 a.m. on Saturdays as usual, he said.