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<br />, <br /> <br />H E H 0 RAN D U H <br />- - - - - - - - - - <br /> <br />Data Relative To Operation or Rio Ch-ande Compact (1940-1956) <br />November, 1957 <br /> <br />Streamflow <br /> <br />The delivery schedules of the Compact were based on conditions existing <br /> <br /> <br />during the period 1928-1937 inclnsive. The application of these schedules COlIIIIl8nced <br /> <br /> <br />in ],940. Elephant Batte Reservoir spilled in 1942, thUll eliminating, under terms <br /> <br /> <br />of the Compact, debits or c:r'edits which had accrued prior to 1943. The following <br /> <br /> <br />comparative tabulations shows average stream nows for various periods. '!'he _hers <br /> <br /> <br />in parentheses indicate percentages of the 1928-1937 average stream novs. <br /> <br /> Units 1,000 acre feet <br /> 1928-37 1940-56 1943-56 ],953-56 <br />Rio Grande Inde.x SUpp:q 593.1 (100) 591.6 (100) 562.2 (95) 371.0 (62) <br />Conejos lDie.x SUpp:q 349.2 (100) 314.6 ( 90) 296.4 (85) 201.9 (58) <br />Rio lh-ande at otowi, N. Mo 1054.2 (100) 969.5 ( 92) 797.4 (76) h40.6 (42) <br />Rio Grande at San Marcial 909.0 (100) 731.2 ( 80) 520.7 (57) 224.7 (25) <br /> <br />In the 10 year period 1928-1937, there were 3 years men the Rio lh-ande <br /> <br />inde.x was below 500,000 acre feet and the Conejos iDie.x was below 300,000 acre feet. <br />In the 14 year period since the spill at EleIilant Batte, there have been 7 years wan <br />the Rio Grande and Conejos indices have been below these amounts, 6 of which have <br />occurred in the 7 years 19$0-1956, inclusive. <br />In the same 14 year period, streamtlows at otowi and San Marcial were al- <br />so considerab~ below those of the 1928-37 period, with corrlitions aggravated due to <br /> <br />under-deliveries from Colorado and New Mexico. <br /> <br />r "" ..... ~:>~ (,: ) <br />.j'~ ..... ".... ;.,; ...J <br />