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Fall 2004 Project Final Reports
Satellite Academy
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Satellite Academy
After spending two weeks testing the water, we discovered a lot of new
things and definitely learned a great deal about the East River. Doing
this was really fun, we enjoyed the trips to the East River (at least
most of us did), the new people we met and all the new things that we
learned. Most of us thought that the water quality of the East River
would be poor and that few organisms would be able to survive in this
body of water. We were surprised that so many organisms live in the
East River and that the results indicate a fair water quality besides
the positive tests for coliform bacteria. We concluded that while the
East River isn’t terrible, there still needs to be more testing and
protection of this area. Everyone thinks that wastewater should not be
allowed to flow directly into the river. Here is a sampling of what
the class had to say about what we learned.
•I expected the water to be blue not green and I concluded that the
reason why the water is green is because there is a lot of algae in
the water.
•I learned that the East River is not a river and I also learned that
there are so many items you can test the water with.
•I learned that there is oxygen in the water I always knew that
organisms in the water had to breathe, but I did not know how. Doing
the research for dissolved oxygen helped to explain to me how that
happened, also that the cooler the water is the more oxygen and the
warmer the water the less the oxygen. Our results prove this because
on the last day, the water was the coldest it was in the two weeks and
it had the most oxygen in it. In the chart (11/5), we could see that
we have a temperature of 14.9 C (coldest in 2 weeks) and the DO of 6
(highest in 2 weeks).
•The dissolved oxygen level (usually around 4ppm) was higher than the
BOD level (around 1ppm), this shows that there is bacteria in the
water. The more bacteria there is in the water, the lower the DO
levels will be. This is because bacteria take in dissolved oxygen to
carry on their life processes. The bacteria was taking all the oxygen
from the organisms living in the water. This can affect the ecosystem
negatively.
•I didn’t think that it would be a lot of salt in the water. I didn’t
know that the ocean brings in water to the East River.
•My results for salinity on the last day were not what I expected to
be because the rain had affected the water. I thought that I would
have had a greater effect on the salinity meaning that rain would
decrease the salinity of the East River greatly. However, the salinity
remained around the same number before the last day it was 30 ppt it
went down to 28 ppt when it rained I expected it to go down more. The
East River normally has a salinity of around 30ppt because it is
mostly ocean water which has a salinity of around 35ppt.
•The water is mostly neutral between 7 and 8 the whole time, so it’s
not that toxic for living organisms. We expected this pH since ocean
water has a pH of around 8 and neutral water has a pH of around 7,
this is a mix of freshwater and ocean water.
•I expected the water that we tested to have ammonia, because I know
that there were living things (organisms) in the water and these
organisms especially fishes excrete waste put ammonia into the water.
There were low levels of ammonia.
•The turbidity was caused by algae, algae is a plant that produces
food through photosynthesis so it releases oxygen into the water which
I thought would affect the DO readings.
•I thought the turbidity was caused by the mixing of salt water and
fresh water
•What I learned was there are living things in the East River. I
didn’t think any thing could live there. I thought it was a dirty
place but I was wrong, there are living things in the water.
•The results indicate poor water quality because it tested positive
for coliform bacteria, which means there is human waste in the water.
•I reached the conclusion that the water is very polluted and
organisms can live in that type of water.
•To me, the coliform results showed that the water in the East River
is not healthy to do anything with or in. Everyday it was tested, it
came out positive for coliform. Coliform comes in from the overflow of
waste into the river. Coliform are bacteria found in the intestines
and are present in feces. That is nasty and it was found in the water.
•We noticed that most of these problems are because we don’t take care
of our water, now we hope that people take care of their environment a
little more and have consideration for the waterways.
P.S. We did the testing in the cold so appreciate the work |
Racine Montessori School
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o
Dissolved Oxygen (A test used to find out water quality)
o Biological Demand Level (The measure of the oxygen used by
microorganisms to decompose waste.)
o Stream Flow (The amount of water moving past a specific area in a
specific amount of time. This is affected by the Watershed.)
o General Observations (Our observations of Colonial Park, our water
testing site.)
o Temperature (Measures how cold the water is, some things can not
grow in certain temperatures)
o PH (Measures the Basic and Acidic levels of the water)
o Nitrates (Measures nitrates, which are essential for plant and
animal growth)
o Macroinvertabrates (Small animals found in the water that can help
you determine the quality of the water.)
o Phosphates (How much Phosphate is in the water, which indicates
pollution levels)
o Introduction Letter (an introduction about the root river and our
school)
Where we were: Colonial Park Racine, Wisconsin
Weather in the past twenty four hours was clear and sunny.
Weather now/then was very overcast.
The water appearance was dark brown with a foamy surface.
There was no water odor even though we sniffed high and low to put it
that way.
The temperature for the water was 53.8 Degrees Fahrenheit.
There were no submersed aquatic plants in the Root River.
As for the riparian vegetation there was a lot I will describe it (R
meaning right, L meaning left).
R/L Hardwood trees
R/L Bushes and shrubs
R/L Tall grasses ferns etc.
L Lawn
R/L Boulders and rocks
R/L Gravel and sand
L Bare soil
The canopy cover for the Root River was rated as 25%.
The bottom substrate was recorded as boulder, cobble, gravel, and
sand.
For the watershed features there was only a golf course and it was
marked as a 1 and2; 1 meaning it was present and 2 meaning it has an
impact on the stream.
The Root River was never channelized.
It is very important to know the temperature of the water. The animals
in the water need a certain temperature to live; some animals need
higher or lower temperature to survive.
Colder water has higher dissolved oxygen then warmer water. The
temperature changes throughout the day, according to the weather. Also
it changes through out the year.
As the temperature gets higher the photosynthesis increases too. That
means the plants in the water grow faster and die faster. When they
die, the plants go to the bottom and disingrate.
How to test water Temperature:
1. You take the temperature meter out
2. You push mode to turn it on
3. You put the test meter in the water
4. You check it well it is in the water
5. You record it on a piece of paper
6. You shut it off by pressing mode again
I hope you learned a little bit about temperature.
PH measures if the water is too basic or acidic. The lower the Ph the
more acidic the water is, and the higher the Ph the more basic the
water is. In the U.S.A. the ph of the water usually between 6.5 and
8.5. If the Ph is below 5 or above 9.5 plants and animals can not live
in that water.
Motor vehicles have nitrogen and sulfur oxides and they can go into
the environment. When these things combine with water vapor in the
atmosphere, they form acids. The acids evaporate in the clouds and
when it rains or snows the acids fall to earth. The acids can damage
trees, crops, and buildings and if the acid gets in rivers or lakes it
can make it very acidic. If the water is too acidic, the plants and
the animals that live in the water could die.
HOW TO DO THE TEST
1. You can use a ph meter
2. And then you open the Ph meter that you are using
3. And then you put it in the water and press mode to turn it on
4. Then you take it out of the water when the numbers stop moving
5. And finally you record what it says
And that’s how you do the Ph.
By Amanda
Stream flow, or discharge, is the volume of water moving past a
cross-section of a stream over a set period of time. It is usually
measured in cubic ft. per seconds (cfs). Steam flow is affected by the
amount of water within a water shed, increasing with rainstorms or
snow melt, and decreasing during dry periods.
Our findings: Site 1: We measured twice at the first the river was 45
ft. wide the average depth 5.999 10th ft. The Stream flow was
20.27cubic ft. per second. The second time was 37 ft. wide average
depth was 0.6765 10th ft. Stream flow was 27.217367 cubic ft. per
second.
Site 2: The steam with was 54 ft 9 in. The average depth was 5.8910th
ft. The Stream flow is 169.6 cubic ft. per second. The second time was
the stream width was 50ft. The average depth was .686510th. Stream
flow was 182.70126 cubic ft. second.
Site 3: The length is 20 ft. the width is 37 ft. the average is 0.6765
ft. the steam flow is 27.21367 cubic ft.per second.
Dissolved oxygen test are important because it tells us how much
oxygen is dissolved, which tells us what kind of animals live in the
water and what kind of water quality there is. Oxygen can enter the
water in many ways. Other things can affect D.O. (Dissolved oxygen)
levels like decaying plant of animals, because decaying bacteria needs
oxygen to break down the matter, so they take that oxygen from the
water. So you will get different D.O. results in different types of
the day because water is colder in the morning and warmer in the
afternoon. It will also change in season’s depth of water. D.O. levels
are normally measured 2 ways, ppm which is parts per million, or
percent saturation, which takes the maximum amount of oxygen in the
water, then measured how much oxygen is in the water, then they are
compared. Over all, dissolved oxygen is very important and very
interesting.
1. Take out the dissolved oxygen (DO) test kit. Follow the
instructions that are with the kit. Remember to record your results in
the ppm (parts per million).
2. When collecting your water sample, here are some important
guidelines:
• Sample the water away from the bank and BELOW the water surface
level.
• Be careful not to get any air bubbles in the sample during
collection; it may result in a false high reading.
• Allow the water to gently fill the DO sample bottle from bottom to
top.
• Put a lid on the bottle while it’s UNDER WATER.
3. Test the DO level immediately. Biological activity in the sample
and exposure to air can quickly change the DO level.
4. Repeat the DO test THREE times.
WHAT TO EXPECT
0.0-4.0 POOR
Some fish and macro invertebrate
Populations will begin to decline.
4.1- 7.9 FAIR
8.0-12.0 GOOD
12.0+ RETEST
Water maybe artificially aerated.
1. Take 2 samples of water- one is tested right away then we waited.
2. Record the DO level (ppm) of one immediately using the method
described in the dissolved oxygen test.
3. Place the second water sample in an incubator in complete darkness
at 20*c for 6 days. If you don’t have an incubator ,wrap the water
sample bottle in aluminum foil or black electrical tape and store in a
dark place at room temp(20*c or 68*f).
4. After 6 days take another dissolved oxygen reading (ppm) using the
dissolved oxygen test kit.
5. Subtract the day 6 reading from day 1 reading to determine the BOD
level. Record your final BOD result in ppm.
What your results mean:
1-2 is very good because there will not be much organic waste present
in the water supply.
3-5 Fair: Moderately Clean
6-9: Poor: Somewhat pullulated usually indicates organic matter is
presented and bacteria are decomposing this waste.
100or greater: VERY poor: very pullulated contains organic waste.
By Emma Campion and Mitchell Burdick
The Phosphate Test
What is the Phosphate Test for?
A phosphate test is used to find out how much phosphate is in the
water. Phosphates can get in the water from soil that has fertilizer
in it. Fertilizer has phosphate in it.
How to do the Phosphate Test
To do the phosphate test you will need these items:
1. phosphate test kit
2. bottle with a closable lid
3. data collection student worksheet
Here are the steps to do the phosphate test:
1. Remove the cap from the plastic bottle and fill it with your water
sample. Fill it to the 10 ml. mark.
2. Add 1 packet of reagent HI 3833-0.
3. Replace the cap and shake the water and reagent until the reagent
disappears.
4. Remove the cap to your plastic bottle and transfer your water to
the color comparator cube in you test kit and let it sit for 1 minute
5. After 1 minute is up, determine which color on your cube matches
the solution.
6. Record your data.
Nitrates usually come from fertilizers, sewage, and industrial waste.
High levels of nitrates are good because it causes plant life and
algae to grow. Nitrate is the same thing as nitrogen so animals and
plants need nitrogen to build protein. Nitrogen is an element.
1. Fill the glass cuvet to the 10 ml mark.
2. Add 1 packet of reagent HI 3874-0.
3. Replace the cap shake vigorously for exactly 1 minuet. A deposit
may remain, but will not effect measurement. Time and the manner of
shacking can affect the results.
4. Wait 4 minutes to let the color develop. Remove the cap and fill
the color comparator cube with 5 ml of the treated sample.(to the
mark)
5. Determine which color matches the solution in the cube and recorded
the result as mg\L (ppm) of nitrate-nitrogen.
6. It is better to match the color with a white sheet at about 10 cm
behind the comparator.
7. To convert the reading to mg\L of nitrate (NO3), multiply the
reading by a factor of 4.43.
Health and Safety
The chemicals contained in this kit may be hazardous if improperly
handed. Read Health and Safety Data Sheets before performing the test.
This is a picture of a nitrate test.
Macroinvertebrates
Stream bottom macroinvertebrates cannot move to avoid pollution, a
macroinvertebrate sample can be an indicator of water quality. The
macroinvertebrates that you find can give you information about water
pollution that you wouldn’t notice when the sample was collected.
Species of macroinvertebrates that are found in colder waters that
need high levels of dissolved oxygen are indicators of a healthy
stream. Macroinvertebrates that are found in warm water are indicators
of an unhealthy stream.
Testing
There are two types of seining net. The types are the kick seine and
the dip net. The kick seine is best for rocky or gravel stream beds.
The dip net can be use in many kinds of stream beds. The net should be
on the stream
Bed with no water going under the net.
Results
We found about 50 total crayfish this year 40 Caddisfly larva and 2 to
3 orb snails and about 10 bloodworm midge
Examining
Sensitive to pollution:
1. Mayfly larvae
2. Stonefly larvae
3. Caddisfly larvae
4. Dobsonfly (often called hellgrammite)
5. Riffle Beetle (adult)
6. Water Penny larvae
7. Planaria (also called flatworm)
8. Gilled snail |
Somewhat tolerant to pollution:
1. Alderfly larvae
2. Crane fly larvae
3. Fishfly larvae
4. Watersnipe fly larvae
5. Damselfly larvae
6. Dragonfly larvae
7. Riffle Beetle larvae
8. Clam or Mussel
9. Crayfish
10. Scuds
11. Sowbug |
Tolerant to pollution:
1. Midge fly larvae
2. Black fly larvae
3. Chironomid larvae
4. Aquatic worms
5. Lung snails |
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Crossroads
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This
was a rather enjoyable project. We learned many things at our neighboring
school’s pond. Our hypothesis stated that our water quality would be good
enough for organisms to live in. We did tests of the DVHS pond water to
see if the pond’s water was able to sustain life. The dissolved oxygen
levels being at 5.4, which is average. Our nitrates and phosphate levels
were exactly the same, zero. Our water temp was 21 degrees Celsius, and
carbon dioxide level was 5.0 (average). This data proved our hypothesis
correct. Plus, when we were there we saw many organisms living in the
pond. We saw dragonfly nymphs, fish, worms; protozoa’s like pond scum,
algae and diatoms. We also saw water beetle larva and plants like
anacharis..
We learned that water needs good oxygen levels in order to support living
organisms. We interpreted from our data that the pond is healthy for
organisms that are already living in the water and it is of good water
quality, but most likely not able to be drank by humans.
In conclusion, our hypothesis: “We think our water is good” was correct in
the sense that it is good for the plants, animals and other living
organisms that live there, but in another sense the water is bad for us to
drink. |
Verdigre Public School
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I
learned a lot about farm pond water. The temperature of the water was
about 9 degrees Celsius. The nitrate level test resulted in 1.3 ppm (parts
per million) and the pH level test resulted in 7.66. E. Coli forms were
clearly present. In order to find out if E. Coli was present, we incubated
the water for 48 hours. After the first 24hrs the water was
yellowish-brown, which indicates E. Coli. We incubated it another 24 hours
for a total of 48 hrs. The water appeared more chalky. We tested it to see
if it was fluorescent. Sure enough, it was.
I also learned that even though farm ponds may look disgusting and filthy,
some of their qualities aren't that bad. There are a lot of E. Coli in the
pond though.
Since there are no fields nearby, there is a low number of nitrates. The
pH level is almost neutral because of the few acidic and basic factors
that would play a role in changing the pond (to be more acidic or more
basic).
Next time, I would like to try taking samples from different areas in the
pond (middle, middle edge, very edge, etc.) I would also like to try
taking samples from another pond on the same farm and compare the results
from that pond with this pond. |
W.H. Cushing Workplace School
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Global
Water Sampling Project: Final Report
W.H. Cushing Workplace School
Calgary, Alberta
The children at W.H. Cushing Workplace School, from kindergarten to grade
3, really felt like scientists when they gathered and analyzed their water
samples. We are very interested in learning about the results that other
schools came up with, as well as in sharing our results.
For the most part, the children thought that our water quality would be
good, although some were concerned about the quality. In particular, it
was the variation in water colour that made some children suspicious of
the quality.
Our water testing results support the hypothesis that our river water is
of good quality. As a school, we each did a portion of the tests, and
below is a summary of each class’s reaction to the data that they
gathered:
Kindergarten:
On November 3, 2004 we went to the Bow River to do our water testing. Our
water was very clear and had no odour that we could observe. We found that
the temperature of our water was 1 degree Celsius in the morning and 2
degrees in the afternoon. When we tested our water’s pH level, we found
that it was 7. This means that our water’s pH is just like that comes from
our taps. We also tested our water for phosphates; we found that our water
had 1 ppm of phosphates. This means that there is not a lot of dishwasher
or laundry detergent in our river. The last thing that we tested for was
our dissolved oxygen. Dissolved oxygen lets us know how much oxygen is in
our river. We found that our river has 2 ppm of DO. Dissolved oxygen
levels below 3 ppm are reported to be stressful to most aquatic organisms,
so we were a little concerned when we saw this number. Because we noticed
many plants and animals growing in and around the river, we concluded that
there must have been a mistake made when we gathered our sample and did
the testing. Overall, we believe that our river is very clean, and this is
great news!
Grades 1/2 – Miss Harvey
We did a test for phosphates. We saw the water sample turn light blue.
This indicated a low level of phosphates in our Bow River water sample. It
took over five minutes to turn light blue.
The phosphate level of our water sample was 1.5 ppm, which is a good
level.
Through this water sampling, we learned that some water has phosphates,
and some doesn’t. We learned that phosphates are in the water when lots of
algae and plants grow in the water. We learned that a high phosphate level
is not a good sign. When we put the tablet in the test tube and waited for
five minutes, we didn’t know it would turn a different colour, but it did.
We found out that the Bow River water was clean, because it turned light
blue. This means good. We wonder if the Bow River sometimes has a high
phosphate level. We were very happy to find out that our results were
good. It made us glad.
Grades 1/2 – Mrs. Lynn
Our water temperature was 5 degrees Celsius (we went in the afternoon on a
bright, sunny day J). The nitrate level was 4 ppm. We thought that the
nitrate level was at a safe level. Some of us believe that the water is
good because the nitrate level is at a natural level. We also still
believe that the water is good because plants and fish live in the river.
As well, many of us thought the water was cleaner than when we started
because we have been picking up garbage and straining leaves out of the
water with our families. Some of us still think that the water quality is
poor because there are probably germs that we cannot see and because of
the animal waste and human garbage. We want to learn more about water
filtration. We also want to use our voices and posters to tell people
about water. Water is special and valuable.
Grades 2/3 – Ms. MacCallum
Our class was very excited to gather water samples with the grade 9
students from the National Sport School. In small groups, we gathered our
samples and performed the tests. Across all of the groups there was a
slight variation in results, so what we have reported is an average, or
the values around which most groups seemed to centre. When doing the
Dissolved oxygen test, our results varied from 1 ppm to 4 ppm, with most
groups obtaining results of 4 ppm. We were convinced that the low numbers
for dissolved oxygen must have been because of errors. We found the
nitrate level to be 4 ppm, which is good. Phosphate levels varied between
1 and 2, which ranges from excellent to good. Our initial hypotheses were
mixed – some of us thought that the River water quality was good and some
thought that it was poor. After analyzing the results, we have concluded
that the overall water quality of the Bow River varies from good to
excellent. |
Pembroke Hill School
|
Our
hypothesis was that the sewage effluent from the Country Club Plaza
residences and businesses would significantly change the water quality of
Brush Creek, decreasing the water hardness and pH while increasing the
chlorine count and fecal coliform level. We anticipated that the the Plaza
would cause significant increase in nitrate, phosphate, and BOD readings.
Was our hypothesis confirmed? Not entirely. We did find that dissolved
oxygen and BOD readings increased downstream of the Plaza. We suspect that
the high dissolved oxygen reading is at least partly due to the fact that
the creek is highly aerated by running over waterfalls and wide, shallow,
concrete areas after it leaves the Plaza. Higher BOD levels could be due
to increased bacterial contamination from the Plaza, but fecal coliform
was so high at all locations that no difference could be detected with our
testing kits. Next semester we will use more sophisticated coliform
sampling techniques to resolve this issue.
Hardness, chlorine, pH, nitrate, and phosphate readings were essentially
the same both upstream and downstream of the Plaza.
Nitrate, phosphate, and chlorine readings were all essentially zero both
upstream and downstream of the Plaza, which frankly was surprising
considering that residential areas and golf courses were upstream. We
expected more fertilizer run-off. Perhaps this was due to the time of
year--we may find higher phosphate and nitrate levels in the spring. The
low chlorine levels indicate that very little treated water is entering
the creek.
The following methods were used for each of the tests:
Nitrate, Phosphate, Hardness, Chlorine, and pH were all tested using Hach
Test Cubes.
Dissolved Oxygen and BOD were determined using a LaMotte Dissolved Oxygen
Test Kit.
Coliform was measured using a Flinn Scientific Bacterial Pollution
Coliform kit.
Location Note #1: The location upstream of the Plaza is in a mixed
neighborhood, with high-income residential neighborhoods and a golf course
on one side of the creek, and a neighborhood shopping center, including
two service stations, on the other. Feeder creeks leading to this location
are largely paved, with straight stone or concrete sides, and run through
middle-class residential neighborhoods.
Some foaming of the water was detected, as was the presence of small
amounts of oil on the surface. By spring, we hope to find or develop a
test for hydrocarbons, which would be useful considering that this part of
the creek is subjected to service station and parking lot runoff.
Location Note #2: The location downstream of the Plaza consisted of an old
urban development project, in which Brush Creek was entirely paved with
high concrete or stone sides. As a result, the creek was very wide and
very shallow (about 1-2 centimeters deep) at our sampling point. It also
was running along an amazing dry stone wall 20-30 feet in height and under
a beautiful old stone and steel bridge which, sadly, is scheduled for
demolition. This architecture certainly affected the dissolved oxygen
level by aerating the water, but made the environment unsuitable for any
but the tiniest animals and plants.
We are looking forward to the spring sampling! Thanks for this
opportunity.
Pembroke Hill School
Environmental Studies Class, Fall 2004 |
National Sport School
|
The
grade 9 class at the National Sport School really enjoyed this project. We
learned a great deal about water quality, the water quality of the Bow
River specifically, and what is required to ensure that we are drinking
safe water.
We had the opportunity to watch aquatic biologists at work. They
demonstrated benthic macroinvertebrate sampling and electrofishing for us.
Our class realizes how fragile this resource is, as well as how easily it
can become contaminated.
The class came up with a variety of hypotheses. Some of us felt the water
quality would be great and some of us were felt it would be poor because
it passes through our city. We found out that the Bow River meets all of
the guidelines with the exception of dissolved oxygen. Our DO levels were
low but we think that this is due to an error in sampling.
Thank you for this exciting opportunity! |
SMPK 1 BPK Penabur
|
Research Location : Cikahuripan Village, Lembang, West Java, Indonesia
Time of Research : 30th of October 2004, 4.00pm-5.30pm
Equipments:
Nets
Buckets
Transparent plastics
Bottles
Topples (for insects)
Thermometer
Hygrometer
pH universal
Sticker labels
Humidity : 26
Air temperature : 23oC
When we were in Cikahuripan Village, we took samples of water in several
points of Cikahuripan area. Here are some information we found:
Point 1:
- Water temperature : 22 Celcius
- pH : 6
- Time : 05.22pm
Point 2:
- Water temperature : 23 Celcius
- pH : 6
Point 3:
- Water temperature : 23 Celcius
- pH : 6
- Time : 05.17pm
Point 4:
- Water temperature : 21 Celcius
- pH : 6
Research’s data after electrolysis process:
Point 1:
- Water temperature : 28 Celcius
- Color : Dark Green -> Copper
Translucent Blue -> Detergent, pesticide, fertilize
Translucent Amber -> Iron Material
Point 2:
- Water temperature : 28 Celcius
- Color : Dark Green -> Copper
Translucent Amber -> Iron Material
Point 3:
- Water temperature : 28 Celcius
- Color : Dark Green -> Copper, Mercury
Milky White -> Decomposed animal remains,faeces
Dark Amber -> Metal pipe rust
Point 4:
- Water temperature : 28 Celcius
- Color : Dark Green -> Copper, mercury
Dark Amber -> Metal pipe rust
Point 5:
- Color : Milky White -> Organic composed
Dark Green -> Heavy Metal Oxides
Dark Amber -> Ferrous Oxide
Point 1 :
Temp : 22oC
pH : 6
Contents: Copper, Detergent, Pesticide, Fertilize, Iron Material
Macro organism : -
Point 2 :
Temp : 23oC
pH : 6
Contents : Copper, Mercury, Iron Material
Macro organism : Dragonfly-larvae, Riffle Beetle-larvae
Point 3 :
Temp : 23oC
pH : 6
Contents : Copper, Mercury, Metal Pipe Rust, Decomposed animal remains,
Faeces
Macro organism : Crane fly-larvae, Gilled Snail
Point 4 :
Temp : 21oC
pH : 6
Contents : Copper, Mercury, Metal Pipe Rust
Macro organism : Gapi Fish
Point 5 :
Temp : -
pH : -
Contents : Organic Composed, Heavy Metal Oxides, Ferrous Oxide
Macro organism : -
According to our observation of the water quality in this area, we
discovered that there is a relation between diluted oxygen level with
various kind of plants and animals living in the water. This was shown
from the amount of living plants and animals that live in the water along
that river. We didn’t purposely measure the diluted oxygen level, but by
seeing all those living plants, we could say for certain that the water in
the river certains sufficient diluted oxygen as a result of plants
photosynthesis.
We measure the pH level, it was 6, it was neutral-a little acidic. This
means the water in Cikahuripan Village can be consumed. Besides measuring
the pH level, we also measured the water clearness, and we came to
conclusion that the more “unclear (cloudy, muddy)” the water is, then the
less diluted oxygen it has. This kind of water categorized as Poor Water
Quality. We have also observed the macro organism found on the site and we
could say that the water in the river is Fair Water Quality. It can be
consumed although it is not the best.
Our observation didn’t meet fully our expectation, we did expect that the
water river can be categorized as Good Water Quality, because it is a
water spring. People of Cikahuripan Village use it both for their daily
lives, drinking, cokking, taking a bath and recreational use such as
fishing, although it is not enjoyable enough to swim in it.
http://a07jkt.bpkpenabur.or.id/montage/_private/index.htm
Submitter:
SMPK 1 BPK Penabur Team
Bandung, West Java, Indonesia
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Bernice A Ray School
|
This
was a terrific experience. We learned a lot about our local watershed and
the Connecticut River. Our hypothesis stated that because we live in a
rural area, we thought our water quality would be good. We learned through
performing water sample tests that our water quality is very good but we
have some concerns about the dissolved oxygen levels and the river's
ability to support and sustain a healthy living environment for fish and
insects. We have such an interest in learning about water quality that we
sent out water quality testing strips to volunteers who sent us back data
from almost all fifty states and from countries such as Ireland. We even
received water samples from the North and South Pole! This project has led
us on an amazing journey and allowed us to make connections within the
classroom and throughout the globe through investigating our own water
supply and analyzing the data from other states and countries. Thank you
for sharing your data with us! |
Ingram Pond
|
Period
3:
Date Sampled: Oct. 11, 2004, morning
Weather: Air temp. 15.5 C, partly sunny, wind speed 7-8 mph
Period 4:
Date Sampled: Oct. 12, 2004, morning
Weather: Air temp. 10 C, partly sunny, wind speed 7 mph
Period 5:
Date Sampled: Oct. 15, 2004, morning
Weather: Air temp. 12 C, partly sunny, wind speed 0 mph
Period 6:
Date Sampled: Oct. 25, 2004
Weather: Air temp. 9.4 C, sunny, wind speed 0-5 mph
Macroinvertebrates found in all groups:
mayfly larvae, damselfly larvae, dragonfly nymphs,true fly larvae,
alderfly larvae, midge larvae, scuds,isopods/aquatic sowbugs, beetles,
fresh water clams, planaria, snails |
Lionville Middle School
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