This document provides information about the River Raisin & Stony Creek Water Quality Project, including its purpose to study water quality, watershed facts for the River Raisin and Stony Creek watersheds, water quality parameters that will be measured such as dissolved oxygen, nitrates, pH, salinity, safety precautions for students, and group job assignments for collecting data.
I gave this presentation along with fellow AmeriCorps Watershed Ambassadors Morgyn Ellis, Quinn Whitesall and Geoff Richter at the 2014 Pinelands Short Course at the Richard Stockton College of New Jersey. The Pinelands Short Course is an annual event organized by the New Jersey Pinelands Commission that features educational presentations about the unique ecology, history and culture of the Pinelands.
This is the part 2 of 5th lesson in the course 'Traditional Knowledge in Sri Lankan Agriculture' taught at the Faculty of Agriculture, Rajarata University of Sri Lanka
I gave this presentation along with fellow AmeriCorps Watershed Ambassadors Morgyn Ellis, Quinn Whitesall and Geoff Richter at the 2014 Pinelands Short Course at the Richard Stockton College of New Jersey. The Pinelands Short Course is an annual event organized by the New Jersey Pinelands Commission that features educational presentations about the unique ecology, history and culture of the Pinelands.
This is the part 2 of 5th lesson in the course 'Traditional Knowledge in Sri Lankan Agriculture' taught at the Faculty of Agriculture, Rajarata University of Sri Lanka
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3 schools in Monroe County Michigan are involved in conducting water quality tests on the River Raisin: temperature, pH, dissolved oxygen, nitrates, and salinity.
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1. River Raisin &
Stony Creek
Water Quality Project
Sponsored by the Monroe County ISD
Mr. Dornberg
Mrs. Hunter
2. Why are we doing this?
"We do not just drink water; we are water.
Water constitutes 50 to 90 percent of the
weight of all living organisms. It is one of
the most abundant and important
substances on the Earth.”
- GLOBE, Hydrology, The Big Picture
3.
4. About 21% of the world's supply of surface fresh water is
contained in the five Great Lakes
5. Freshwater lakes contain .007% of all the water in the world
The world’s water
<2 Tablespoons
Source: Igor Shiklomanov's chapter "World fresh water resources" in Peter H. Gleick (editor), 1993, Water in Crisis: A
Guide to the World's Fresh Water Resources (Oxford University Press, New York).
6. What is a Watershed?
“A watershed is the area of land where all of the water that is
under it or drains off of it goes into the same place.” -US EPA
7.
8. River Raisin Watershed Facts
• Approximately 1,072 square miles, 150 miles long
• Home to 140,000 people
• 5 Michigan Counties: Lenawee, Monroe,
Washtenaw, Jackson, Hillsdale; small portion of
Fulton County Ohio
• Over 400 lakes & ponds
• 3,000 miles of man-made drainage systems
Source: http://riverraisin.org/features/river_raisin_watershed_info/index_html
9.
10. Stony Creek Watershed Facts
• Relatively small area:
– 32 miles long, 8 miles at widest point
• Washtenaw and Monroe counties in Michigan
• Upper watershed is highly developed
• Lower watershed is primarily agricultural
Source: http://www.michigan.gov/documents/deq/ess-nps-wmp-stony-creek_208933_7.pdf
11. What do you see?
http://www.wildeducation.org/programs/nww06/watershed_illustration.html
12. The Circle of River Life
Source: Everyone Lives in a Watershed
15. REAL Science!
• Water temperature
• pH
• Dissolved oxygen
• Nitrates
• Salinity
16. Dissolved Oxygen
• Sources of DO
– aquatic plants
– aeration: waterfalls, waves, splashing
• Range of values: 0 to 16 mg/L
• Changes throughout the day and
throughout the year
17. Dissolved Oxygen Levels
• < 3.0 mg/L : most organisms die
• < 5.0 mg/L : cause for concern
• < 7.5 mg/L : sensitive organisms die
18. Nitrates
• Needed for aquatic plant growth
• Too much causes growth of algae and
excessive plant growth
• Levels affected by run-off
• Generally range from 0 to 10 ppm
19. pH
• Measures the acid content of water
• Ranges from 0 – 14.0
• 7.0 is considered “neutral”
• Most lakes and streams: 6.5 to 8.5
• Affected by geology and rainfall
20. Coke & Pepsi 2.5
Most amphibians and insects can’t survive if
pH is <4 or >10
21. Salinity
• Measures dissolved salts in water
• Measured in “parts per million” or ppm
• Oceans: average 35000 ppm
• Fresh water:
<500 ppm <1000 ppm
22. Salinity 500 to 1500 ppm
• Can be consumed by humans although
most would prefer water in the lower half
of this range if available
• Can be used for irrigation depending on
plant/crop tolerance
• Suitable for all livestock
Source: http://www.dpi.vic.gov.au/dpi
23. Salinity 1500 to 6000 ppm
• Not recommended for human consumption.
Water up to 1800 ppm could be drunk if
nothing else available
• Not normally suitable for irrigation, though
water up to 3600 ppm can be used on very
salt tolerant crops
• Water over 2400 ppm can cause shell
cracking in laying hens
• Drinking water for poultry and pigs should be
limited to about 3600 ppm
• Most other stock can use water up to 6000
ppm
24. Safety First
• Life jackets
• Gloves
• Goggles
• Long sleeves
• No shorts
• No sandals, open-toe shoes, or heels