GOSHEN —
If you see him wearing waders, trust us — he’s not fishing, though he is hunting.
Goshen City Engineering Department intern Matt Wendler is hunting for something dangerous in the stormwater outfalls within the city through a two-year research project, he said.
“This summer, my primary goal is to investigate problem areas (in the stormwater system),” he said.
Wendler, a Middlebury native and senior at the University of Notre Dame, spent last summer and this summer trudging through creeks, kayaking through rivers, collecting water samples and running laboratory experiments to detect illicit drainage in outfalls, he said. This drainage can be anything from chemicals to bacteria.
“We’re testing for various levels of concentration (of illicit materials),” he said. “We have base lines we’re using. We’re testing problem areas twice a week to see how the levels fluctuate. We’re getting closer to some sources (for the contamination).”
Wendler said the drought this summer, though unfortunate for farmers and gardeners, helped speed his experiment along.
“This is a dry weather examination,” Wendler said. “We have to wait 72 hours after the most recent rainfall to do testing, because you don’t want anything diluted through the stream of water. We wait until there’s more than .01 inches of water to do the testing. We’re looking for illegal discharge.”
City Utilities Engineer Dustin Sailor said the project helps fulfill part of the Indiana state code which states that communities must have a program to stop these discharges in stormwater.
Sailor said the Engineering Department usually has an intern during the summer, and that the beginnings of this project were in 2005 and 2006, when the city began tracing the stormwater system with GPS, looking for all of the outfalls.
“By a rule, we screen all public outfalls that are 12 inches or larger in diameter,” Sailor said. “After 36 hours after a rain, if it’s still running, we test it, too.”
The stormwater system is a large series of underground pipes, and Sailor said some members of the community helped draw attention to problems by pointing out what they see to the department.
The project identifies stormwater outfalls with illicit chemicals or other presences in the water, including E. coli. Wendler said he has identified nine outfalls, with two outfalls in particular getting attention because of high concentrations of these presences, including high concentrations of E. coli.
These two outfalls — located off of College Avenue (but not coming from Goshen College) and at the ditch near North Carter Road — have shown higher concentrations of E. coli. With the dry weather helping his progress, Wendler has been able to trace back up the line of stormwater drains that leads to these outfalls, slowly coming closer and closer to a source of contamination somewhere up the line, he said.
These contaminations aren’t tiny, either. More than 2,400 E. coli colonies were present in a sample taken from what the Engineering Department calls Wellington Ditch, located near the Millrace bike path, according to an experiment Wendler demonstrated in the laboratory on Wilden Avenue.
According to Sailor, anything more than 235 colonies shouldn’t come into contact with humans.
Though this ditch isn’t used for swimming or any other recreational purposes, it needs to be tested, observed and fixed, according to Wendler.
“People aren’t getting into the water,” he said, “but the contamination is still hurting the environment, and it’s possibly killing life in the area.”
Once the problem areas are pinpointed, they will be treated and the project will continue with routine testing for all of the outfalls, according to Sailor. The state mandates will keep the Engineering Department working on maintaining and testing all of the outfalls for the city.
“It’s a never-ending project,” he said. “We will continue to test.”
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