OCR Text |
Show -53- In event any works are constructed after 1937 f°r the purpose of delivering water into the Rio Grande from the Closed Basin, Colorado shall not be credited with the amount of such water delivered, unless the proportion of sodium ions shall be less than forty-five percent of the total positive ions in that water when the total dissolved solids in such water exceeds three hundred fifty parts per million* ARTICLE IV. The obligation of New Mexico to deliver water in the Rio Grande at San Marcial, during each calendar year, exclusive of the months of July, August and September, shall be that quantity set forth in the following tabulation of relationship, which corresponds to the quantity at the upper index station: DISCHARGE OF RIO GRANDE AT OTOWI BRIDGE AND AT SAN MARCIAL EXCLUSIVE OF JULY, AUGUST AND SEPTEMBER Quantities in thousands of acre feet Otowi Index Supply (5) San Marcial Index Supply (6) 100 - 0 200 65 300 lUl Uoo 219 500 300 600 383 700 ' I+69 800 557 900 6J48 1000 7U2 ¦ 1100 839 1200 939 1300 . 10)42 1J4OO 11U8 1500 1257 1600 1370 1700 1J+89 1800 1608 1900 ,1730 2000 1856 2100 1985 2200 2117 2300 - ' 2253 Intermediate quantities shall be computed by proportional parts. (5) The Otowi Index Supply is the recorded flow of the Rio Grande at the U.S..G.S. gaging station at Otowi Bridge near San Ildefonso (formerly station near Buckman) during the calendar year, exclusive of the flow during the months of July, August and September, corrected for the operation of reservoirs constructed after 1929 in the drainage basin of the Rio Grande between Lobatos and Otowi Bridge, (6) San Marcial Index Supply is the recorded flow of the Rio Grande at the gaging station at San Marcial during the calendar year exclusive of the flow during the months of July, August and September. |