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Tuesday, June 8, 2010

Summary of First and last Day Readings.

Ont he first we started (5-18-10), when we took our first water quality tests the results were scarily suprising. Our Ammonium Nitrate test was so bad that all we could put for a reading was >2.5. Unfortunatly it has remained so all the wat to the last test and we have zero guesses as to why. Luckily, and shockingly, our pH level faired much better. Staying consistently around 7, the first day read 7.1 and only increased by .8 to 7.90. Again no guess as to why this is. The Dissolved Oxygen level of the first day was 3.5 mg/L with a big drop to .7mg/L on the latest test. Probably due to increased bacteria levels in the water. Our next test was turbidity. with a first reading of 0 we were happy about the overall water quality. But with a second reading of 33.4, that was obvious just by looking at the water, it was no question that the water was no longer sutible for a fish. This was probably due to the decomposing fish and plants in the water. temperature remained relativley the same with a first reading of 21.4 degrees C. and a last reading of 20.6 degrees C. Low Range Nitrate testing stayed low with a begining reading of .176 mg/L and a decreased last reading of 0. with these tests it's not hard to see that no fish would be able to live in the hostile enviroment that we set up, especially if it was on a larger scale.

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