H 2 whOa !. The Governor’s Institute of Environmental Science & Technology- Water Group. Analyzing data of the physical, chemical, biological parameters to make sure the rivers are healthy.
The Governor’s Institute of Environmental Science & Technology- Water Group
Analyzing data of the physical, chemical, biological parameters to make sure the rivers are healthy.
“It doesn’t matter how beautiful your theory is, it doesn’t matter how smart you are. If it doesn’t agree with experiment, it’s wrong.”
The Governors Institute of Vermont Environmental Science and Technology have conducted a series of tests and assessments for the overall quality of the rivers, Centennial and Mill brook .
Water Pollution Study
We have damaged the rivers and now we want to fix them.
Testing to ensure the water quality is normal
To better understand the wildlife
To get experience in field work.
Land within the watershed
The Brook is located in a urban area.
The main part of the brook is
.08 miles in length.
It has many branches of water, but 2 main sections that branch towards the east and the south.
It’s no longer touched by humans(as in farming and living).
It has lower water levels that can be seen by past erosion located higher than the water levels now.
Residential areas of the east side take up a lot of the watershed.
The Watershed drains 887 acres
Centennial Brook Watershed
Mill Brook watershed area is 10,350 acres.
Centennial Brook: Averages
Mill Brook: Averages
Centennial Brook: Suboptimal 130
Mill Brook: Suboptimal 140
pH and Light
A pH measurement of 7.0 is considered neutral for water so both brooks were more basic. pH can affect which organisms live in the water.
Light levels affect watersheds by controlling temperature and algae growth.
EPA standards for pH measurement are between 6.5 and 8.0 so both brooks are within the Federal Standards.
Conductivity = how well water can conduct electricity.
Directly related to dissolved ions/temperature (the warmer the water, the better the conductivity)
Sources of ions:
Parts per million
Streams produce and consume DO
Velocity and vegetation add oxygen
Aquatic organisms and organic matter consume oxygen.
Dissolved oxygen is directly related to temperature.
DO: 11.2 mg/L
Acceptable: 6.22-9.26 mg/L
DO: 9.8 mg/L
Acceptable: 6.8-10.5 mg/L
Nitrate content data
Testing water samples for
PO4-3 and NO3-
NO3- & NO2-
Pollution sources: fertilizers, septic tanks, sewers
Algae growth limited sunlight
What are macroinvertebrates?
Why should we study them?
How do we collect them?
What do our results mean?
What is SEM?
What can it do?
What did we find?
Despite the fact that Vermont is one of the healthier states in the country, actions still must be taken to improve the overall quality of the rivers and streams