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San Juan-Chama Water Accounting Albuquerque Area Office May 1996 The natural inflow into Heron Reservoir during the month of May was computed to be 470 acre-feet (af) as shown in Table 3. There were 2730 af net San Juan-Chama (SJ-C) losses. as shown in Table 2. There were 30.760 af of diversions through Azotea Tunnel this month. There was a total of 150 af of Natural eRG) released from Heron, all of which was seepage. There was no SJ-C water released from Heron. There was no precipitation at Heron Reservoir. The May average for recent years (including this one) is 1.52 inches. The monthly computations for Heron Reservoir are summarized in Tables 1-3. From El Vado. 262 af which was held-over at the end of April. was released by Middle Rio Grande Conservancy District (MRGCD) to the Cochiti recreation pool. From Abiquiu. 1084 af of Cochiti recreation pool water, temporarily stored but en-route from Heron. was released to Cochiti recreation pool. Of the 1084 af. 652 af arrived as inflow to Abiquiu from Heron May 1 and 2. for a net-effect of 432 af from Abiquiu to Cochiti r~creation pool. MRGCD borrowed from City of Albuquerque (The City) 4174 af. released from Abiquiu to meet irrigation demands. The City also released from Abiquiu 225 af to Jemez recreation pool. Total inflow into Nambe Falls Reservoir was computed to be 575 af. Evaporation loss on the reservoir was 25 af. Table 4 summarizes San JUan-Chama water at Otowi. There were no State Engineer letter-requested releases for contractors made in May. Estimated sediment deposition in the San Juan-Chama pools at Abiquiu and Jemez Canyon Reservoirs. and Cochiti Lake are presented in Tables 5A-5C. Storage and evaporation of Rio Grande water in El Va do and Abiquiu Reservoirs are shown in Table 6. All data are provisional and subject to revision as final data are collected and analyzed.