Aqua Cares About Bugs, and You Should Too

Why would a compliance guy at Aqua America care about bugs in the IllinoisKankakee River when most people try to avoid or kill bugs?

 

Kevin M. Culver of Aqua America

First off, I am not an entomologist (aka a bug expert) so why do I care about bugs? This is the first question I ask when conducting a source water presentation or manning our source water display booth at events.

Most of the responses I receive, depending on the age of the participant, are that:

·      Bugs are bad and need to be eliminated

·      Bugs are part of the food chain necessary to sustain life in the river

Both responses are somewhat correct but not exactly why I care. We do not want bugs in our drinking water but they are an important part of the food chain.

I care about the bugs because one can determine the health of a stream by the number and type of bugs living in the stream. Not only can the bugs be used to determine water quality, but fish and fresh water mussels can also be used as biological indicators of water quality.

 

Bugs And Your Water   

So what are macro-invertebrates (macros)? These include aquatic insect such as larvae, worms, leeches and snails that can be found under rocks, attached to plants and in the bottom sediments of rivers and streams.

Not all macros that are found indicate species of water quality. In fact, only 36 different groups of macros make up the specimens used to determine water quality.

 

The 36 Groups: What You Need to Know

As a citizen scientist through the River Watch program, I have been trained on techniques on how to properly collect and identify the water quality indicator of macro-invertebrates. 

I collect bugs at four assigned sites annually within the Kankakee watershed, located in the northeastern part of Illinois. The same sites are used each year to determine water quality at that instant and to trend this result against previous sampling events.

Each of the 36 indicator species is assigned a tolerance value (TV) to pollution between “0” being completely intolerant to pollution and “11” being highly tolerant to pollution.

The weighted average tolerance value of all the bugs collected at a site is the water quality indicator, officially known as the Macro-invertebrate Biological Index (MBI).

If a bug is intolerant to pollution, it means it hasn't acclimated to pollution, which mean the river is clean. If a bug is tolerant to pollution, it means the bug has indeed been exposed to pollution - so much so that its body has changed its reaction to pollution. 

So when Aqua tells everyone that the Kankakee River is one of the “cleanest” rivers in the Midwest, it's the bugs that prove it. The water quality in Rock Creek in the Kankakee State Park is one of the few sites in Illinois that are statistically getting cleaner, according to the bug results.

This year I also collected 849 bugs from my Kankakee River site that had the lowest ever average tolerance value (MBI) at 4.29.

 

Why Should You Care About the Bugs?  

Along with just being cool, they are an integral part of our source water protection plan. You can determine water quality by which bugs are present or absent and they are a great way to educate and demonstrate to young and old about the importance of source water protection.

 

 

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How to Observe AND Preserve for Water Quality Month

Did you know August is National Water Quality Month? Not many people do, but that’s why we’re here — to spread the word. You can make simple changes in your water usage that will have a huge impact on local ecosystems and watersheds.

Think about all the little critters that play in the neighborhood creek or the pond by the park. Their health is literally in your hands. Your own water supply is one of the many places where polluted runoff occurs. Follow some of the helpful tips below to be on your way toward a cleaner and happier watershed.

 

·      Remember when you were six years old and your pet goldfish passed away? Your parents probably had a nice little toilet funeral for it. Well, believe it or not, flushing Goldie wasn’t too good for the environment. Let’s stop flushing anything that the toilet isn’t meant for. This includes medications, goldfish and leftover cleaning products.

 

·      Speaking of pets, we all know cleaning up after them is a cumbersome task. However, if their waste is left where it falls, it can get washed down storm drains, spreading  that bacteria into your drinking water.

 

·      Cars can create a huge mess if not tended to properly. You can still work on that old Corvette in the garage, but make sure you lay down some plastic liners to collect any dripping oil or other fluids first.

 

·      Gardens can be quite harmful to watersheds. If you use pesticides or chemical fertilizers, the runoff is some of the worst. If you have a patch of land dedicated to growing fruits, vegetables or flowers, you should take extra precautions and use organic repellents.

 

·      The same idea goes for toxic household products. One way or another, they get rinsed down the drain. To avoid contaminating your water, consider buying non-toxic, organic cleaners.

 

·      Finally, if you’re thinking about paving your driveway or other parts of your property, you might want to reconsider. Rainwater rinses off pavement and drags any pollutants it comes in contact with straight into the nearest drain. Without the pavement, water soaks into the ground, diluting contaminants and preventing flooding.

 

Over the past decade, watershed purity has declined. According to the United Nations Department of Economic and Social Affairs’ International Decade for Action ‘Water for Life’ 2005-2015, “Every day, more than 2 million tons of sewage drain into the world’s waters.” 

It’s never been more important to stay conscious, keep updated and be proactive about water quality.

Not sure where your watershed is located or what condition it’s in? Just input your zip code or town name to Surf Your Watershed to find out.

Go out and start saving the planet – one flush at a time.

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