It's Water-Wise Wednesdays with Frannie the Fish! {TAPS Manual Part 5: Improperly Operated Landfills}

Frannie's friends at the Groundwater Foundation recently published the second edition of the Training About Protecting the Source (TAPS) Manual. The manual guides users through hands-on activities that explore potential threats to groundwater and challenges them to think about what can be done to protect this key drinking water source.

This manual can be used inside the classroom and is aligned to the national Next Generation Science Standards, but Frannie loves just learning about groundwater, no matter where she is. For the next few weeks, you can join her as she works through the different activities. 

Frannie will be using the Groundwater Foundation's Awesome Aquifer Kit, but if you don't have one, you can follow along with materials that might be found around your home. This is the second part of Frannie's exploration of the TAPS Manual. You can follow the link to see what she learned about sinkholes, leaky underground storage tanks, improperly abandoned wells and the over-application of fertilizer.

Today's activity is....Improperly Operated Landfills.

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A municipal solid waste landfill (MSWLF) is an area of land that typically receives household waste and sometimes can receive other types of nonhazardous waste, such as commercial solid waste, nonhazardous sludge, and industrial nonhazardous solid waste. According to the EPA, there are approximately 2,000 MSWLFs in the U.S. that are managed by the states in which they are located. When rain, snow, or runoff water soaks into and through a landfill, it can dissolve some of the landfill’s contents and, in an improperly constructed or operated landfill, carry it on down to the groundwater. This mixture of recharge and particles from the landfill’s contents is called leachate. As the amount of waste increases, the potential for leachate to enter the groundwater increases.

For this activity, you will need:

• Awesome Aquifer Kit
• Plastic box
• Gravel
• Plastic tube
• Hand pump or syringe
• Nylon
• Rubber band
• 2 inch square piece of dyed paper towel (prepped in advance)
• Dip a paper towel in/or spray with slightly diluted food coloring (2 drops of dye per ounce of water)
• Allow to dry completely.
• 16 oz cup of water

Activity Steps 

1. Read through all the instructions first before you begin to build the model. Make sure you have all the needed materials and supplies.

 

2. Fill the plastic box with gravel until it is about ¼ full.

 

3. Add water so that half of the rocks are covered. (This will represent an aquifer.)

 

4. Create a well by covering the end of the plastic tube with nylon, securing it with a rubber band.

 5. Insert the well, with the well screen on the bottom, near one corner of the plastic box. Push the well down so that it reaches the bottom of the model.

 

6. Take the colored piece of paper towel, scrunch it up, and bury it on the opposite side of the model from the well location and near the outside of the box. (This is your landfill.)  

 

7. Pour or spray water on the surface of the gravel to simulate rain. Observe what happens to the landfill and groundwater after the rain.

8.  Pump the well by inserting the tip of the syringe into the well (plastic tube) or attaching and pumping the hand pump.

Once it got wet, the stained paper towel began to leach some red into the surrounding groundwater. Frannie also noticed that the water she pumped out of the other end of the model was colored a light pink. Leachate from improperly managed landfills can flow in underground plumes, eventually contaminating nearby wells, but this can be prevented. Landfills that are properly operated have safety measures in place to mitigate the chances that dangerous chemicals will enter into the ground. Proper recycling of hazardous waste, such as pharmaceuticals, paint, oil, cleaners, electronics, batteries, and more can keep contaminants from getting into the system in the first place.

It's Water-Wise Wednesdays with Frannie the Fish! {TAPS Manual Part 3: Leaky Underground Storage Tanks}

Frannie's friends at the Groundwater Foundation recently published the second edition of the Training About Protecting the Source (TAPS) Manual. The manual guides users through hands-on activities that explore potential threats to groundwater and challenges them to think about what can be done to protect this key drinking water source.

This manual can be used inside the classroom and is aligned to the national Next Generation Science Standards, but Frannie loves just learning about groundwater, no matter where she is. For the next few weeks, you can join her as she works through the different activities. 

Frannie will be using the Groundwater Foundation's Awesome Aquifer Kit, but if you don't have one, you can follow along with materials that might be found around your home. This is the second part of Frannie's exploration of the TAPS Manual. You can follow the link to see what she learned about improperly abandoned wells and the over-application of fertilizer.

Today's activity is....Leaky Underground Storage Tanks.

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An underground storage tank system (UST) is a tank and any underground piping connected to the tank that has at least 10 percent of its combined volume underground. Underground storage tanks can contain fuels, chemicals, and wastes. According to the US Environmental Protection Agency there are over 550,000 underground storage tanks that store fuels or other hazardous substances. These tanks may leak and when they do, they can contaminate surrounding soil, groundwater, surface waters, and even affect indoor air quality.

For this activity, you will need:

• Awesome Aquifer Kit, OR
• Plastic box
• Gravel
• Plastic tube
• Hand pump or Syringe
• Nylon
• Rubber band
• Food dye
• Small plastic container with lid (ex. a film cannister, sprinkles or spice container, etc.)
• 16 oz cup of water

Activity Steps

1. Read through all the instructions first before you begin to build the model. Make sure you have all the needed materials and supplies.

 

2. Fill the plastic box with gravel until it is about ¼ full.

 

3. Add water so that half of the rocks are covered. (This will represent an aquifer.)

 

4. Create a well by covering the end of the plastic tube with nylon, securing it with a rubber band.

 

5. Insert the well, with the well screen on the bottom, near one corner of the plastic box. Push the well down so that it reaches the bottom of the model.

 

6. Add more gravel until the box is about ½-¾ full. The surface of the gravel should be fairly level across the box.

 

7. Dye about 1.5 oz of water with three or four drops of food coloring and use it to fill the plastic container. Seal the container when full.

   

8.Using a tack, carefully poke holes in one end of the film canister or container.

 

9. Dig a small hole in the gravel on the opposite side of the model from the well. Place the canister/container inside the hole. The end of the container with the holes poked in it should be facing down. Cover the container, either partially or entirely, as long as at least 10% of it is underground.

 

10. Pour water on the surface of the gravel to simulate rain. Observe what happens to the colored water inside the storage tank after it rained. 

 

11. Pump the well by inserting the tip of the syringe into the well (plastic tube) or attaching and pumping the hand pump.

Frannie observed that once the water "rained" over her aquifer, the red water, which was contained in the storage unit, leaked out into the aquifer below. As it rained more and more, even more leachate entered the aquifer. Very quickly, the whole aquifer becomes contaminated  and when Frannie tried to pump water up from the aquifer, it was pink from the contaminant. 

Storage tanks are a common and useful way of storing and disposing of toxic waste, but they must be monitored carefully to prevent contamination of our drinking water sources, crops, and livestock.

It’s Water-Wise Wednesdays with Frannie the Fish! {Awesome Aquifer Kit: Improperly Managed Landfill}

This week in Frannie’s exploration of the Awesome Aquifer Kit is all about why you should care what goes into your landfill.

 

We all know how to pick up litter and throw it away properly, but where does our trash go and how is it taken care of after the garbage truck drives away?

That’s right! The landfill!

All of the gross things we don’t want near are homes are going to a landfill.  When it rains, the water infiltrates the landfill.  In other words, it filters down through all the layers of trash to reach the earth.  Once the water has trickled down through all that trash, it starts to look and smell like a garbage soup.  Scientists call this soup “leachate”.

Leachate then seeps down into the ground where it can interact with our groundwater, the same water we pull from our wells to drink and use in preparing our food.  If we are not careful of what we put in the trash or if the operators of the landfill are not careful to check the garbage trucks for harmful and toxic items, then our wells are in danger of critical pollution.

Luckily, there are special landfills for dangerous chemicals.  These can be underground storage tanks, septic systems, or recycling plants that treat or transform toxic trash until it is useable again.  You can help at home by doing more recycling, even for items like broken electronics, batteries and light bulbs!

You can learn more about landfills here and visit your local landfill to see what they are doing to keep your ground and groundwater safe.