1. Warm Up Question – In your notebook
Here is the definition of water pollution:
The introduction of chemical, physical, or biological agents into water that degrade water quality and adversely affect the organisms that depend on the water.
Would litter be considered water pollution?

2. Point vs. Non-Point Source Pollution

3. Point vs. Non-point Source Pollution
Pollution discharged from a single source
Source can be identified
Can be regulated by law
Many sources
Difficult to identify origin
“People pollution”
Difficult to regulate

4. Point Source Pollution
Examples:
Discharge from pipe
Leak at chemical plant or storage tank
Oil Spill (BP 2010)

5. Point - Industrial

6. Point – Leaking Underground Storage Tanks

7. Point – Unlined Landfills

8. Point – Leaking Septic Tanks

9. Point – Acid Drainage from Mines

10. Non-Point Source Pollution
Pesticides
Fertilizers
Animal Waste
Road Salt
Litter
Sediment Runoff
Oil and Gasoline

11. Non-Point Pollution

12. NonPoint – Acid Rain

13. NonPoint – Salting Roads

14. You may have seen this…
Rainbow stain is created when motor oil leaks from vehicles onto roadways

15. People Pollution
Lawn fertilizers and pesticides

16. When nobody’s looking…

17. When nobody’s looking…

18. Review- Point v. Non-point Examples
POINT Source
NON-POINT Source

19. Why are they bad? Road Salt- changes salinity of freshwater
Pesticides- chemicals designed to kill
Fertilizers- eutrophication
Litter- wildlife, aesthetics ruined
Sediment- suffocates, blankets riverbed
Oil- affects oxygen levels, wildlife

20. Controlling Pollution
Point Sources:
Industrial discharges are regulated by the NJ Dept. of Environmental Protection (NJDEP) or EPA
Monitored discharges
Cannot exceed certain limits on pollution
Once source is identified, we know who to blame
Fines $$$

21. Non-Point Regulation
More difficult to monitor/regulate because we don’t know the source
Watershed Management, Education, Outreach
Impose Restrictions, Fines, Penalties
Silt fences for construction sites
Fines for littering, pet waste, illegal dumping
Farms have laws to regulate livestock waste

22. Watershed Management Land Use affects water quality
Rain washes pollutants from watershed into water bodies
As urbanization increases, NPS pollution increases

24. NonPoint – Urban Run-Off

25. Storm water Management
Storm drains bring storm water directly to local waterways, NOT a Treatment plant!

26. The Storm Water Dilemma
As urbanization increases 
Impervious surfaces increase 
More storm water is sent down drains at a faster rate 
Localized flooding increases
Constant problem in NJ

27. Silt fences- keeps sediments ON SITE

28. Farms- Riparian “buffer zones”
Riparian vegetation = “near water”
Having native vegetation near streams and rivers catches sediments and nutrients (N&P) before they reach the water

29. What can you do to prevent non-point source pollution?

30. What can you do? Non-point pollution prevention starts at home!
Don’t Litter!
Pick up after pets
Limit fertilizer/pesticide usage at home
Bring waste oil to auto body shop
Maintain your vehicle

31. How are watersheds, aquifers (groundwater) and surface water all connected to point/non-point source pollution?

32. Wrapping Up…
What is the difference between point and non-point source pollution?
Name three examples of non-point source pollution.
What is the purpose of a riparian buffer zone?

33. Extra Information
“The Clean Water Book”
“Frogline” Video on NPS Pollution-