Water Treatment & Results

Northern Arizona University, Flagstaff, AZ.

Stormwater Testing Analysis

The stormwater collected from the detention tank was tested. A total of three trials per test. The stormwater testing results were compared to drinking water quality standards. The testing parameters are shown in the following table.

Test Parameters Test Method
pH HACH Method #8156: pH
Nitrate HACH Method #8171: Nitrate
Ammonia HACH Method #10031: Ammonia
Total Nitrogen HACH Method #10071: Total Nitrogen
Total Coliform HACH Method #8074: Total Coliform
Total Hardness HACH Method #8266: Total Hardness
Turbidity Standard Method #2130B: Nephelometric Method
Total Suspended Solids Standard Method #2540 C: Suspended Solids
Total Dissolved Solids Standard Method #2540: Total Solids

Stormwater Results

The following links are the results of each test parameter:

Stormwater Treatment Alternatives

Since the stormwater testing indicated that TSS and pH do not meet EPA and EDEQ Standards, the team had to determine appropriate treatment solutions through the following decision matrixes.