Daily flows during 1995 cwcasionally fell below the recommended minimum during the winter 

 months because of beaver activity, ice conditions, and severe cold spells. The deficit volume for 

 January through March, 1995, was 10 dam' - an average of 0.001 mVs per day. 



FEB MAR APR MAY JUNE JULY AUG SEPT OCT NOV OEC 



Figure 3.2 Flow Hydrograph of the East Poplar River at the International Boundary. 



3.2.4 On Demand Release 



In addition to the minimum flow, the UC apportionment recommendation entitles Montana to an 

 on demand release to be delivered during the twelve month period commencing June 1. Based on 

 the runoff volume of 13 200 dam' recorded at the Poplar River at the International Boundary 

 gaging station during the March 1 to May 31, 1994 period, Montana was entitled to a release of 

 617 dam' from Cookson Reservoir during the twelve month period commencing June 1, 1994. 

 Montana requested this release to be made between April 11 and May 31, 1995. In addition to 

 the minimum flow, a volume of 628 dam' was delivered during this period. 



