Holly Monroe (UR)- Late Afternoon Testings

Today my second BOD test was completed and I started the third test. I also bought distilled water today to begin testing the ponds salinity levels. I preformed the next BOD and this salinity test a little late today because I was out getting a few internship hours this morning. The lawn services came today as well and had just finished mowing shortly before I began testing. I also saw some tadpoles along the side of pond.

Tadpoles 4-21-20

Time:

• Start Time: 6:10pm
• End Time: 6:30pm

Weather Conditions:

• Air temperature: 79 degrees Fahrenheit
• Cloudy- Weatherbug
• Clear skies- my point of view
• Winds: E6



Algae Growth



Algae Growth

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  Clear Skies 4-21-20

Results:

• BOD test from 4-17-20: 4ppm
• BOD test from today 4-21-20: Waiting on results
• Salinity: 0ppt
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  Start of BOD Test

  
  

  

  BOD 4ppm From 4-17-20

  
  

  

  BOD 4ppm From 4-21-20

  
  

  

  Salinity Test Preparation

  
  

  

  Salinity Results

Correlation(s)/ Difference(s):

• On 4-17-20 the results for the BOD test came back as 0ppm, but this time they came back as 4ppm.
• It had rained the day before when I was collecting samples (there was a few days where I preformed the tests inside) which would lead to the water/ stormwater runoff that I had posted about previously as well.



• "Wet retention ponds are a stormwater control structure that provides retention and treatment of contaminated stormwater runoff. By capturing and retaining stormwater runoff, wet retention ponds control stormwater quantity and quality. The ponds natural processes then work to remove pollutants. Retention ponds should be surrounded by natural vegetation to improve bank stability and improve aesthetic benefits" (Bill Leber).

Source(s):
Bill Leber. (2015). Stormwater Basins: How Detention and Retention Ponds Work. Retrieved from https://info.wesslerengineering.com/blog/stormwater-basins-detention-retention-ponds