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San Juan-Chama Water Accounting Albuquerque Area Office January 1997 The natural inflow into Heron Reservoir during to be 2800 acre-feet (AF) as shown in Table 3. Chama (SJ-() losses, as shown in Table 2. through Azotea Tunnel thi s month. the month of January was computed There were -650 AF net San Juan- There were 349 AF of diversions There was a total of 2520 AF of Natural (RG) released from Heron, of which 136 AF was seepage. There was 6854 AF of SJ-C water released from Heron, of which the total was sent to the Middle Rio Grande Conservancy District (MRGCO) in El Vado from the City of Albuquerque (the City). There was 3.27 inches of precipitation at Heron Reservoir, which is 241% of the January (running) average of 1.35 inches. The monthly computations for Heron Reservoir are summarized in Tables 1-3. From El Vade, 2503 AF was released by MRGCO to pay back the City of Albuquerque (City) in Abiquiu for water borrowed for irrigation. 2000 AF of MRGCO water was released to their pool in Abiquiu and 3908 AF was released for temporary storage in the City pool in Abiquiu. A total of 6854 AF inflow of City water was sent to MRGCO in El Vado. From Abiquiu, a total of 1584 AF was released from the City pool to the Jemez Sediment pool. A total of 8260 AF of SJ-C water flowed into Abiquiu Reservoir: 2723 AF as payback of borrowed water to the City from MRGCO: 5537 AF of MRGCO water stored in Abiquiu. Total inflow into Nambe Falls Reservoir was computed to be 261 AF. There was no evaporation loss on the reservoir. Table 4 summarizes San JUan-Chama water at Otowi. 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 Vado and Abiquiu Reservoirs are shown in Table 6. All data are provisional and subject to revision as final data are collected and analyzed.