Friday, July 10, 2009

What happens in Greenwich

The following are taken in similar intervals as from Stamford's treatment Plant. There are major differences! The tides are incoming on both samples (Greenwich and Stamford).

Outside Captain's island (Basically in the Sound)
total coliform CFUs/100 mL 20
fecal coliform CFUs/100 mL 2
Escherichia coli CFUs/100 mL 2
enterococcus CFUs/100mL 16
phosphorus as reactive phosphate less than 0.221 mg/L
nitrite nitrogen less than 0.003 mg/L
nitrate nitrogen 0.588 mg/L
pH 8.33
turbidity 1.52 NTU

mid Greenwich harbor
total coliform CFUs/100 mL 44
fecal coliform CFUs/100 mL 4
enterococcus CFUs/100 mL 32
Escherichia coli CFUs/100 mL 4
phosphorus as reactive phosphate less than 0.221 mg/L
nitrite nitrogen less than 0.003 mg/L
nitrate nitrogen 0.647 mg/L
pH 8.22
turbidity 1.36 NTU

Indian Harbor Yacht club
total coliform CFUs/100 mL 500
fecal coliform CFUs/100 mL 90
enterococcus CFUs/100 mL 160
Escherichia coli CFUs/100 mL 70
phosphorus as reactive phosphate 0.224 mg/L
nitrite nitrogen less than 0.003 mg/L
nitrate nitrogen 0.772 mg/L
pH 7.90
turbidity 2.15 NTU

Grass island Boat Ramp (near the treatment plant discharge)
total coliform CFUs/100 mL 670
fecal coliform CFUs/100 mL 120
enterococcus CFUs/100 mL 190
Escherichia coli CFUs/100 mL 80
phosphorus as reactive phosphate 0.471 mg/L
nitrite nitrogen 0.004 mg/L
nitrate nitrogen 0.935 mg/L
pH 7.72
turbidity 2.30 NTU

Note the gradual increase in Nitrogen . Phosphate and turbidity and decrease in pH as the samples approach the treatment plant discharge.
Post a Comment