WSP01662

• File Number: 8220.125.N
• Description: San Juan-Chama Project
• State: NM
• Basin: San Juan/Dolores
• Date: 12/1/2001
• Title: San Juan-Chama Project Water Accounting for 2001
• Water Supply Pro - Doc Type: Report/Study

San Juan-Chama
Water Accounting
Albuquerque Area Office
December 2001

The natural inflow into Heron Reservoir during the month of December was computed to be 490
acre-feet ~AF) as shown in Table 3. There were -54 P.~F net San Juan-Chama (SJ-C) losses,
as shown in Table 2. There were no diversions through Azotea Tunnel this month.

There was 0.77 inches of precipitation at Heron Reservoir, which is 64% of the
December running average of 1. 20 inches. The monthly computations for Heron Reservoir are
summarized in Tables 1-3.

There was a total of 135 AF of Natural (RG) released from Heron through seepage (Table 3) .
There was 21608 AF of SJ-C released for the month of December, of which 8120 AF was
released for the Middle Rio Grande Conservancy District (MRGCD) to their pool in El Vado.
4094 AF was released for the City of Albuquerque (City) to their pool in Abiquiu (31 AF was
temporarily stored in El Vado, which was released the first week of January 2002) . 2112 AF
was released from Cochi ti' s pool to the Cochi ti Rec Pool in Cochi ti. 62 AF was released
from Nambe's pool to go down stream for irrigation depletions at Otowi. 5605 AF was
released from Santa Fe's pool destined to their pool in Abiquiu. 400 AF was released from
Bernalillo's pool destined to their pool in Abiquiu. 1000 AF was released from Espanola's
pool, 27 AF to their pool in El Vado, 973 AF to their Abiquiu pool. 15 AF was released from
Twinning's pool, 7 AF to El Vado, 8 AF to Abiquiu. 200 AF was released from Los Lunas' s
pool destined to their pool in El Vado.

There were no SJ-C releases from El Vado for the month of December.

There were no SJ-C releases from Abiquiu for the month of December.

Total inflow into Nambe Falls Reservoir was computed to be 201 AF. There. were 0.3 AF of
losses 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.

Table 5C provides water accounting information for Elephant Butte Reservoir. Please note
content information for Elephant Butte has been corrected taking into accountant the latest
area capacity tables effective January 1, 2001.

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All data are provisional and subject to revision as final data are collected and analyzed.

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