1. Pollutants in a Watershed
2.3.1Explain ocean currents develop and move 1

2. 2.3.1Explain ocean currents develop and move
How pollutants might flow through a watershed and affect inhabitants that share the same watershed
2.3.1Explain ocean currents develop and move 2

3. Impacts on Estuaries
Excessive nutrients from sources such as failing septic tanks, sewage treatment plants, storm water runoff, atmospheric deposition, industrial organic waste discharge, and contaminated runoff from fertilized farms or yards or from animal operations affect estuarine systems.
Pathogens & disease
Habitat alteration
toxic substances
invasive species
storm sewers 3

4. Global Water Availability4

5. 5

6. Drinking Water & Wastewater treatment systems (quality/quantity)
Consumptive: water that is returned to the atmosphere as water vapor
Non-consumptive: water that is returned, in liquid form, to the natural environment
How Wastewater Affects You
There never will be any more or any less water on Earth than there is right now
all of the wastewater generated by our communities eventually returns to the environment to be used again.
when wastewater receives inadequate treatment, the overall quality of the world’s water supply suffers.
Virtual Tour of a Drinking Water Plant | Virtual Tour of Water Treatment Plant | US EPA 6 6

7. Arsenic concentrations in Ground water7

8. Quality of NC Streams (chemical, physical properties, biotic index)
Rivers, Streams, and Creeks
Number of impaired waterbodies: 406 (cause not reported for 21%)
Percent of Rivers, Streams and Creeks in NORTH CAROLINA assessed by agencies for reporting period: 89%
  Percent Waterbodies Affected
Nonpoint Sources %
Impairment source not reported 22%
Municipal Point Sources % 8

9. Non-point source Pollution: large or dispersed land areas such as crop fields, streets, & lawns that discharge pollutants into the water over a large area
Point source: Single source that discharges pollutants into the water ex: smokestack of a power plant, drainpipe of a factory. 9

10. Non Point/Point Source Pollution
Industry Cities Urban Sprawl Construction sites
2.3.1Explain ocean currents develop and move 10

11. 2.3.1Explain ocean currents develop and move
Sedimentation, storm water runoff, naturally and human induced occurrences
Naturally induced
Human induced
Storm runoff
sedimentation
2.3.1Explain ocean currents develop and move 11

12. Conservation measures to maximize quality & quantity of available freshwater resources
Every Drop Counts 12

13. Your choice matters... It will make a difference...
The cost of just one case of (cheap) bottled water could supply a person in Africa with clean, safe drinking water for a year!
(Poem about water)
You decide. 13