|
Container
|
Title
|
|
Stream pollution
|
|
|
Box
2
Envelope
465
|
View of stream flow aeration unit in operation below Pixley dam on Flambeau River, 1943
: Basket containing 75 carborundum diffuser plates are lowered into tail race and supplied with air from a compressor in the power plant. Diffused air bubbling upward replenishes oxygen caused by discharge of sulfite waste liquor and other mill effluents.
|
|
|
Box
2
Envelope
470
|
General view of Middle Dam below Park Falls, Pixley Dam, and Crowley Dam, across Trempealeau River eight miles from Park Falls, 1943 June 1
|
|
|
Box
2
Envelope
462
|
Views taken during investigation, 1925 November 10-13
|
|
|
Box
2
Envelope
460
|
Middle dam on Flambeau River sampling point, 1936 August
|
|
|
1944 June-September
|
|
|
Box
2
Envelope
466
|
A. View of continuous sampler at Crowley Dam
|
|
|
Box
2
Envelope
466
|
B-C. Sampler showing construction details
|
|
|
Box
2
Envelope
466
|
D-G. Testing power house equipment at Crowley Dam
|
|
|
Box
2
Envelope
467
|
General view of aeration stream flow below Pixley Dam, 1946 July
|
|
