Arcata Water Analysis   

[edit] Water Analysis for Yearling Ponds One and Two

The information on this page is credited to Dr. George Allen of the Fisheries Dept. from a study done in 1990.

[edit] Facts

• The effluent entering the ponds from wastewater has been both disinfected and dechlorinated.
• During the winter months the pond never gets below 7^o c.

[edit] Statistics for the Ponds

• mean temp= 10.5^o c for pond one and 10.5^o c for pond two
• salinity (ppt)= 12.7 for pond one and 13.6 for pond two
• pH 7.7 and 8.0
• Dissolved Oxygen (mg/L) is 8.8 and 10.7
• Clarity (cm) with use of the secki disc 90+ and 70+ for pond two.

• Pond one is said to be cleaner than pond two because of the higher population of phytoplankton in pond two.

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