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Title:

Water Quality

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Water Quality Water Quality Means different things depending on use. Idaho, and other states, have established safety standards for the following uses: Domestic (home ... – PowerPoint PPT presentation

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Title: Water Quality


1
Water Quality
2
Water Quality
  • Means different things depending on use.
  • Idaho, and other states, have established safety
    standards for the following uses
  • Domestic (home) usage
  • Cold water fisheries
  • Warm water fisheries
  • Trout spawning
  • Swimming
  • Wading/ boating
  • Irrigation
  • Livestock watering

3
Factors Effecting Water Quality
  • Suspended Solids sediments, can be filtered out
  • Dissolved Oxygen all creatures must respire
    normal range 8-15ppm

4
Factors Effecting Water Quality
  • Pollutants measured in ppm or ppb
  • Temperature trout like 55 bass 70

5
Factors Effecting Water Quality
  • Bacteria fecal coliform most commonly tested.
    drinking 1/ml swimming 50/ml
  • pH measures acidity, below 6.5 decreases
    productivity

6
Factors Effecting Water Quality
  • Nutrients stimulate plant/algae growth.
    Nitrogen/phosphorus most common, frequently from
    agricultural runoff, sewage
  • Above .1ppm unacceptable

7
Factors Effecting Water Quality
  • Turbidity Murkiness of water. Secchi disk used
    to measure
  • Toxicity measure of lethal compounds that
    dissolve in water. Heavy metals, pesticides,
    insecticides

8
Factors Effecting Water Quality
  • Macroinvertebrates what lives in the one water
    is one of the best indicators of water quality!
  • Insects, crustaceans, snails, etc.
  • Caddisflies, mayflies indicate good water
  • Mosquito larvae, leeches not so good.

9
Factors Effecting Water Quality Review
  • Suspended Solids
  • Dissolved Oxygen
  • Pollutants, ppm
  • Temperature
  • pH
  • Bacteria
  • Nutrients
  • Turbidity
  • Biological Indicators
  • Toxic solubles

10
Water Quality and Forestry
  • BMP requirements
  • Class 1 streams used for domestic water or
    important fish habitat.
  • Class 2 streams minor drainages not used for
    above.

11
Water Quality and Forestry
  • Class I Protected 75 on either side of high
    water mark
  • Class II Protected 30 on either side of high
    water mark if close to confluence with class I,
    otherwise, 5
  • Poorly constructed roads and skid trails cause up
    to 90 of logging-related erosion

12
Water Quality and Forestry
  • When streams crossed, bridges must be installed
    you can not skid thru any stream, including
    intermittent and ephemeral.

13
Water Quality and Forestry
  • Providing large organic debris (LOD)
  • improves fish habitat, traps sediments and
    reduces stream velocity
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