John Marshall High School Rochester, mn
EA #83.0 Rochester Sewage Treatment
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- Navigate this page:
- EA 83.5 Silver Lake Analysis Statement of Purpose
- Equipment for the field Water monitoring kit (or Vernier Probes) Area to be studied
- Dissolved Oxygen Goose Population
- E.A. 84.0 Stream Survey Form
- Names _______________________________________
- E.A. 85.5 Ground Water Post Bulletin “Ground Water Reprint” Answer the questions found below from the readings they are listed under.
- Area’s Geology Made for Quick Water Pollution”
- Household Chemicals Get into Water”
- Pesticides Become Concern for Water Well Users”
- EA 86.0 “The Great Minnesota Garbage Game” During the video discuss with your group at appropriate times the following questions.
- EA 86.5 Article WS: “Municipal and Solid Waste” Read the article “Municipal and Solid Waste”. Answer the following questions.
- EA 87.0 Video WS: “A User’s Guide to Planet Earth” Answer the following questions as directed as you watch the video.
- EA 88.0 Renewable Energy Video Directions
- What scientist
- GEOTHERMAL
- BIOFUELS
EA #83.0 Rochester Sewage Treatment Read the article “Sewage and Sewage Treatment” that was published by the City of Rochester and answer the following questions(or do your own web search). What is sewage? What are three elements of sewage? What percent of sewage is organic matter What is organic matter? What does organic matter require? What would happen to the aquatic life if we dumped organic matter (sewage) into our lakes and rivers? Why does water under go purification and what is purification? How do rivers and lakes self purify and why can’t we count on this action to treat our sewage? How long does a sewage treatment plant take to purify water, how does this compare to a river or lake? What are the three principle methods of treatment of sewage? How much of pollutional matter is suspended solids? What is a suspended solid? What are the two methods of methods of mechanical treatment? What would be an example of a dissolved pollutional matter? What is the difference between absorption and adsorption? Are bacteria in water treatment plants necessarily bad? Why or why not? What is floc or activated sludge? What is humus material or sludge? What is added to the water to chemically treat the water? What does this chemical do to the water? What are done with the solids that are removed from the sewage water? About how many gallons of sewage are treated daily in Rochester, what did the expansion of the plant accomplish? EA 83.5 Silver Lake Analysis Statement of Purpose We will be sampling the water of Silver Lake from eight different locations. These samples will be tested on site and in the laboratory to measure the impact of the RPU power plant and the Canadian Geese population on the Silver Lake environment. Equipment for the field Water monitoring kit (or Vernier Probes) Area to be studied Circle you study area on the map below. Data:
On the map of Silver Lake, show inlets and outlets, note condition of the shoreline (plant types, erosion, denuded by geese, study area…) Save a sample of water to study back in the lab. E.A. #84.0 Stream Survey Form In this activity your group will be canoeing a local stream or river. During the class you will be surveying the river to assess its general “health”. Fill out the data requested below and turn in this sheet at the end of the class. Stream Name______________Tributary of ________________ Drainage system _______________ Survey Date________________Survey time________________ Stream Section Surveyed: From__________________________To____________________________ Stream Size (estimate in feet) Width: Narrowest___________ Widest___________ Depth: Deepest_____________ Average__________ Stream Bank Habitat (Check all habitats observed along the stream surveyed) Wooded______Wood swamp_______Marsh_______Pasture_______Crops_______Housing______ Watershed Environs (Check all that occur lateral to the stream within its watershed) Residential____Commercial______Industrial_________Agricultural___ Recreational______ Enter the number of each of the following observed in the surveyed section of the stream.
Constructed barriers: 2. Natural Barriers: ____Dams _____ Beaver Dams ____Culverts _____Waterfalls(2’ or higher) ____Other man made structures _____Logs/Debris(More than 50% stream )
Stream alterations 4. Sewage outflows ____Channelization _____Untreated(Septic systems) ____Dredging(present) _____Treated(Sewage plant discharge) ____Erosion walls ____Channel liners Residential waste outflows 6. Industrial Non-sewage outflow ____Discharge detected _____Discharge detected ____No discharge detected _____No discharge detected Storm drain outflows 8. Water removals ____ _____Agricultural _____Municipal _____Industrial _____Other Instream/Floodplain Conditions 10. Other adverse situations ____Refuse dumps _______________________________ ____Sanitary landfills _______________________________ ____Livestock pens _______________________________ ____Oil slicks ____Sediment inflow ____Logging Names _______________________________________ ____Construction _______________________________________ ____Filling Survey Remarks: E.A. #85.0 Rochester’s Water Supply Access the Rochester Public Utilities, RPU, at rpu.org/environment/water_quality/. Scroll down the page until you find the most recent Water Quality report and answer the following questions. Look at the definitions at the bottom left of the page, what do the following acronyms stand for? MCL, MCLG, N/A, ND, NT, ppm, range, AL, SMCL, and 90% level? What is the MCL for Nitrogen? What was the range tested in Rochester? What is its source? Have the concentrations of lead in our drinking water met the AL? What is the typical source of Lead in our water? From the bottom of the page, who does lead effect the most? Where does the tetrachloroethylene in our drinking water come from? Search the web for negative effects to tetrachloroethylene? Which substance that was tested has its Avg. Result closest to the MCL or the SMCL? Radon in an alpha emitter closely related to radium. Look at the bottom of the page at the description of radon. How does it enter your body? What effects does it have on your body? Go further down the page to “Source of Water” and find the following. How many wells does Rochester have? How deep are these wells drilled to access water? What is an aquifer, what type of rock is in an aquifer and into what aquifer do most of the wells sink into? Now look in “Water Treatment”. What three chemicals does RPU add to our drinking water? What is the purpose of each chemical? Look in “Compliance with National Primary Drinking Water Regulations”. What are the 5 types of contaminants that may be present in our drinking water? Does drinking water need not have any of the contaminants in the water to be healthy? Are the safe levels for contaminants the same for everyone? Finally read “Results of Monitoring”. Were any contaminants at levels that violated federal standards? Was coliform bacteria present in any of the water samples? E.A. #85.5 Ground Water Post Bulletin “Ground Water Reprint” Answer the questions found below from the readings they are listed under. “Guarding our Buried Treasure” Which part of the state holds the majority of the ground water? Is this source of water vulnerable to pollution? What separates water bearing layers of rock? What term is given to these water bearing layers? What layer is unfit to drink? What percent of local wells are contaminated? What are the contaminants? How many wells in Rochester have been closed? What nitrate levels can cause oxygen robbing conditions in the blood of infants? What are VOC’s and why do we need to be concerned about them? What does Loni Kemp’s statement “We are all guinea pigs now” refer too? Where do nitrates come from? What will it cost to close the Olmsted County Landfill? What are three possible solutions to land fill problems? What was the cost to build the Olmsted County Incinerator? What does it supply to the community? What are some problems with the incinerator? “Area’s Geology Made for Quick Water Pollution” Briefly discuss how our region’s layers of Limestone, Shale and Sandstone formed. What is a “karst topography”? How are sinkholes developed and why are they so dangerous? “Household Chemicals Get into Water” List household chemicals that are considered to be dangerous. Why are the clay layers in land fills unable to stop the leaching of these chemicals? What solutions are there for stopping these chemicals from showing up in our drinking water? “Pesticides Become Concern for Water Well Users” Why are more chemicals used today than were used 50 years ago? What are the advantages that we see from this increased use of chemicals? How do these chemicals end up in our water supply? What percentage of our wells are contaminated with these chemicals? What is atrazine and what problems does it present? Why is it important to remove weeds, undesirable plants, from farm fields? How are minimum tolerances established? What is your chance of chemical poisoning? EA # 86.0 “The Great Minnesota Garbage Game” During the video discuss with your group at appropriate times the following questions. Take an inventory of the trash in the room, where could all of this trash be deposited instead? List the reasons why items come in the containers that they do. In what ways could the amount of trash due to these containers be reduced? What does it take to make a good recycling program run? What all can be recycled? List the hazardous waste in your home. List the possible ways to dispose of it, and encourage people to dispose of it properly. Write a list of what large items are disposed of in the trash, where they come from and what can be done to reduce, reuse or recycle the amount of this type of waste. EA #86.5 Article WS: “Municipal and Solid Waste” Read the article “Municipal and Solid Waste”. Answer the following questions. What is called municipal solid waste? How many plastic bottles are thrown away each hour, year? If all the paper that was thrown away was built into a 12 foot wall, it would stretch from where to where? What could we build with the aluminum we throw away? How many pounds of garbage were produced by each American per day in 1990? Looking at table 2.1 what is happening to the amount of paper we are throwing away? Plastics? Metal? What fraction of municipal waste does the EPA believe is packaging? As a consumer, what would be the effect if packaging were reduced? What is “green marketing”? Describe the “Green Report”. Why does the author think that having women working has increased solid waste? One way to reduce the quantity of waste is to reduce the amount of packaging. What does figure 2.4 show about the trend of package weights? What are the three methods to handle municipal solid waste? Sketch figure 2.5, what does it illustrate? Looking at table 2.3, how many tons per year of solid waste does Minnesota produce, and what is our breakdown of disposal %’s? What is a landfill? What were they once known as? What is the “Mobro”? Why isn’t the most common method of waste disposal the safest? Why did ½ of the landfills close after new standards took effect in 1993? Why is the “Fresh Kills Landfill” famous? What is the “not in my backyard syndrome”? Why are many cities and towns forced to send their garbage to other states? Where does New York send some of its garbage? What are some environmental problems that landfills lead to? Sketch a cross sectional diagram of a landfill. What does the EPA believe is the best alternative to landfills? What is the heat from an incinerator used for? EA #87.0 Video WS: “A User’s Guide to Planet Earth” Answer the following questions as directed as you watch the video. More people have been born and added to the Earth since which year then were alive prior to 1900? What happens to most garbage? What accounts for one third of what we throw away? Which item should you purchase? Which item can be recycled? How should you answer “Paper or Plastic”? Half a million trees are destroyed each week for which use? What causes most of the air pollution in the US? Why hasn’t smog decreased? Will you use less gas is you let your car idle instead of turning it off? What is the cause of most CFC damage to the ozone? What is the average family’s highest use of water? What would be the greatest saving in water? What is the greatest use of water? At a rate of one drip per second, how many gallons of water are wasted in a week? Most drinking water in the US is from which source? What should never be poured down the kitchen sinks drain? Most of the energy in the home is used to do what? The major source of heat loss in the home is from where? Will a house warm faster if you turn up the thermostat? Which household appliance uses the most energy? How would you use less energy?   EA #88.0 Renewable Energy Video
Directions: answer each of the following questions as you watch the film. You will be held responsible for them on future quizzes and tests. SOLAR 1. What renewable energy did FedEx make use of to power their plant in California? 3. Sunlight knocks ______ free from the silicon cells to form an electric current.
1. 2.
3. 4. 5. 6. How much land would be needed to be covered in photovoltaic cells to meet the entire electrical needs of the United States.  8. What is the number one use of natural gas for many homeowners?
9. What scientist first proved that light consisted of photons that could be converted into electricity? 10. Name two modern uses of solar photovoltaic cells. 1. 2.
12. What are “building integrated” photovoltaics? WIND 13. How many homes are powered by the Fenner wind farm? 14. The general idea of a wind turbine is to convert wind energy into ________________ energy. 15. What is the main challenge for wind power? 16. What are clusters of wind turbines called?____________________ 17. Name two parts of the United States that have the greatest potential for the production of wind energy. 18. What caused the early use of wind power in this country to fall out of favor? 19. In general, what has happened to the size of wind turbines?
21. What island nation makes efficient use of geothermal and hydroelectric power to meet their energy needs? 22. What does it mean to say a plant is a “dual use” facility? 23. Iceland hopes to convert its cars and fishing fleet to ____________ power using its renewable geothermal resources. 
24. What type of geothermal can almost any homeowner use? BIOFUELS 25. What is the best fuel for many cars converted to use biofuels? 26. Name two other biofuels these cars can use. 1. 2.
28. What prairie grass may prove the best source of biofuel? 30. What is one major disadvantage associated with using more and more biofuels to produce energy? TIDES/CURRENTS/WAVES 31. Briefly describe how a tidal barrage works. 32. What disadvantages are associated with the use of tides and currents to produce energy? 33. Does the technology exist today to make the switch from non-renewable energy sources (fossil fuels) to renewable sources. 
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