Water Tests
The measure of the cloudiness of water / suspended particles in the water
What is TURBIDITY.
What is ACIDIC.
The range for pH is 0-14. Neutral is_____.
What is 7.
Aquatic organisms that indicate stream health by their presence or absence.
What is MACROINVERTEBRATES
What is the MAIN risk for fish due to low DO levels?
What is death.
This water quality test indicates BETTER water quality when it is HIGHER.
What is Dissolved Oxygen
The pH range needed for most aquatic life to thrive is _____.
What is 6.5-8.5.
Turbidity levels for drinking water should not exceed what number?
What is ZERO
Pollution from a discreet and known source.
What is POINT SOURCE pollution
Colder water can hold _________ dissolved oxygen than warm water.
What is MORE
This test is a measure of the acidity of a substance.
What is pH.
Class AA stream indicates the best water quality for salmon. Dissolved Oxygen levels must meet or exceed how many ppm?
What is 11 ppm
What is TOXIC CHEMICALS FROM MINING, AGRICULTURE or INDUSTRIAL WASTE.
Pollutants that cause algae blooms in water.
What is NITROGEN or PHOSPHOROUS
Describe a pH measurement that indicates a substance is BASIC.
What is 7.1-14
Deforestation would have a DIRECT negative impact on THIS water quality parameter?
What is TURBIDITY or TEMP.
What is the range for LOW turbidity in the PNW?
What is under 25.
What source of pollution, BESIDES HEAT, can decrease dissolved oxygen levels?
What is SEWAGE, TURBIDITY, LOW WATER LEVELS...
Pollution from runoff is also called ____?
What is NON-POINT SOURCE
The main human health risk due to high turbidity is ______?
What is : There is a likely increase in microorganisms (bacteria and viruses)
TWO factors that increase turbidity.
What is EROSION, FLOODING, ALGAE BLOOMS, SEDIMENT...
The standard pH level for drinking water...
What is CLOSE TO NEUTRAL or SLIGHTLY BASIC
Water temperature has NO effect on this test.
What is pH
The process of algae blooms breaking down and depleting oxygen.
What is EUTROPHICATION
Most fish populations need DO levels to consistently be _____ or higher.
What is 5 ppm (but salmon need MORE than this)