1. Water Conservation & Water Quality 11.4

2. Water Quality How do we know if the water is good? – Dissolved oxygen – Pathogens – Temperature – pH – Turbidity – Suspended sediment – nitrates – http://ga.water.usgs.gov/edu/characteristics.html http://ga.water.usgs.gov/edu/characteristics.html

3. Where does pollution come from? There are two main categories of water pollution: – Point source – Nonpoint-source

4. Point source pollution Comes from one specific source: – Leaking sewer pipe – Leaking tanker – Outfall pipe from a factory This type of pollution can be identified, monitored and controlled.

5. Point source pollution http://www.bing.com/images/search?q=bp+oil+spill+pictures &qs=IM&sk=IM1&pq=bp+oil+spill+&sp=2&sc=8- 13&form=QBIR#x0y37

6. Nonpoint-source pollution Comes from many vague sources: – lawns – fields – roadways This type of pollution is difficult to trace, difficult to monitor and difficult to control. Education is the best remedy!

7. http://www.txlawncare.com/wp-content/gallery/landscape/riding-spreader-ferlizing-lawn.jpg http://www.bing.com/images/search?q=nonpoin t+source+pollution+examples&view=detail&id=A 087CA45F3EE0D8EB31D011B4651652D96A1DDD 0&first=0&FORM=IDFRIR http://www.bing.com/images/s earch?q=litter+images&view=de tail&id=06A70A7E2B26B95CA01 BF41C312F4040898BADD2&first =0&FORM=IDFRIR

8. Cultural eutrophication From Millers Living in the Environment

9. Wastewater treatment From Millers Living in the Environment

10. Primary treatment Large screen to catch solids such as plastics, bottle caps, paper. Large tank where small particles can sink & get filtered out. Oil floats to surface & is skimmed off.

11. Secondary treatment Water flows to aeration tank where oxygen & bacteria are mixed. Bacteria feeds on the waste. Water flows to another tank. Water is disinfected with chlorine, UV or ozone. Water is released to stream or river.

12. NC Water Use http://www.ncagwater.org/documents/NC_Ag ricultural_Water_Strategic_Plan_Exec_Summa ry.pdf http://www.ncagwater.org/documents/NC_Ag ricultural_Water_Strategic_Plan_Exec_Summa ry.pdf

13. NC Law for water conservation http://www.ncwater.org/Reports_and_Publica tions/hb1215/HB1215_Sec5_Report.pdf http://www.ncwater.org/Reports_and_Publica tions/hb1215/HB1215_Sec5_Report.pdf http://www.bing.com/images/search?q=Water+Conservation+Ideas&v iew=detail&id=924A5F6C23BE13E3FA7C4DAEC1525681838B5121&firs t=0

14. What can you do to reduce your water consumption? With your team, generate a list of ways that you can reduce your water consumption. Every drop counts! Here are some ideas…lets compare our lists: http://wateruseitwisely.com/100-ways-to- conserve/index.php http://wateruseitwisely.com/100-ways-to- conserve/index.php

15. Homework Read pages 326 - 331

16. Output Select 3 ways to reduce your water use. Write them in your notebook. Share these ideas with your family tonight. Make a mental note about how they respond to your water conservation lesson.