John Hinde, Calvin Leman, and Marsha Garland visited the Salmon, Idaho
Wastewater Lagoons on March 23, 2010.This is what they found. Marsha is taking the video.
Where the Septic-Tank Trucks Dump Their Wastewater 2
(at the influent lagoon area)
The Pump at the Influent Goes On and Off 3
Getting a sample of the influent. Rags, plastic, and other debris
are here.
A Sample from the Influent 4
10 Surface Aerators: How Many Are Running? 5
Taking a Sample at the Lagoon, Near the Sewage Inlet Area. It is
cloudy and green with particles in it. 7
Debris (plastic and cans) on the rocky shore of the first lagoon, near the
sewage inlet. 9
At the boat-launch area, near the sewage inlet. This is the starting
place to measure dissolved oxygen, pH, turbidity, and sludge. 10
Anchors for Aerators, on the shore of the first lagoon, near the sewage
inlet. 11
Electric Switch Boxes for the Airo-2 Surface 7.5 horsepower aspirator
aerators. 12
Boat and Winch to pull anchors for floating aerators. 13
At the overflow of the first (primary) lagoon. A device to handle the
surface aerators. Overflow pipe, taking water from below the surface.
Here the level of water can be controlled. Algae on the wall and in
the water here. 16
Going to the second lagoon. Not many rags and other debris in the
second lagoon, because the overflow pipe from the first lagoon caught these
items. 17
At the Secondary lagoon, which has 2 aerators of 6 running. 19
At the far end (northeast end) of lagoon 2, going to the northwest part of
lagoon two, where the outlet to the river is. 20
At the discharge area, which is after the ultraviolet treatment of the
water. Looking at the flow sensor, from which the flow is calculated.
21
At the final manhole, where the water goes into the Salmon River 22
At the ultraviolet disinfection area. 24
The ultraviolet disinfection system. The flow meter for the water
going to the river. 25
The ultraviolet lamps, showing the materials that precipitate on the glass.
26
Log of the flow rate. 27
A new ultraviolet lamp. 28
The flow of the water through the lagoon. 29
Trees in Spring and a panoramic view of the lagoons. 30 31