Hydrology
16 items found
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/542169147a6cd4.05821681.pdf/full/full/0/default.jpg)
Directive Established for Great Lakes Water Levels Reference
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/5421669728e2e1.79853665.pdf/full/full/0/default.jpg)
D.G. Chance to Joe Clark, November 14, 1986
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/542166b8ac0d14.04356306.pdf/full/full/0/default.jpg)
Joe Clark to David G. Chance, January 21, 1987
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/54216781929f65.51231549.pdf/full/full/0/default.jpg)
Directive
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/54216877aa1669.82848474.pdf/full/full/0/default.jpg)
International Study on Fluctuating Water Levels in the Great Lakes-St. Lawrence River Basin
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/5421687fd85b62.36788983.pdf/full/full/0/default.jpg)
International Study on Fluctuating Water Levels in the Great Lakes-St. Lawrence River Basin - A Schematic Illustration
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/5421668de471b4.44217009.pdf/full/full/0/default.jpg)
Joe Clark to David Chance, August 1, 1986
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/54216691c5e3f6.16098999.pdf/full/full/0/default.jpg)
Commission Discusses New Lake Levels Reference
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/54216970025a64.40832678.pdf/full/full/0/default.jpg)
Impacts of Great Lakes Water Supply Modification
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/542166a76c6187.27579395.pdf/full/full/0/default.jpg)
Task 1- Task 6
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/542166c4c9ef43.64192791.pdf/full/full/0/default.jpg)
Directive Concerning the Reference on Flucuating Water Levels in the Great Lakes-St. Lawrence River Basin
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/542166cf13d736.83722236.pdf/full/full/0/default.jpg)
Resolving a Common Problem Together
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/542167611aadd1.85454318.pdf/full/full/0/default.jpg)
Draft, Plan of Study - Content Online
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/54216772e6fc54.19747249.pdf/full/full/0/default.jpg)
Reference
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/542167d7161254.71431213.pdf/full/full/0/default.jpg)
A Perspective on The Work of the Functional Study Groups
![](https://cdn1.historyit.com/iiif/2/5fb2f50013eb62.91058264/5421678e6da279.00883795.pdf/full/full/0/default.jpg)