Commercial production of ethanol in the San Luis Valley, Colorado. Final Report Page: 57 of 222
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d) Surface pressure - injection well
e) Fluid flow rate
f) Motor amps drawn by injection and/or production pumps
g) Subsurface operating pressure
This data will be analyzed so that the well(s) can be completely characterized and
production and injection indices derived.
In addition, periodic samples of produced geothermal fluid shall be taken,
checked for sand content and analyzed chemically so that any materials selection prob-
lems or pollution control problems (H2S gas production, etc.), can be identified and
The San Luis Valley is located in all or part of nine counties: Alamosa,
Archuleta, Conejos, Costilla, Hindsdale, Mineral, Saguache and San Juan. Average
annual rainfall is approximately 17.7 centimeters (7 inches), with the temperature
ranging from -400C (-400F) to around plus 320C (900F). The valley is considered to be
a high mountain desert with cool summers and cold winters. The combination of high
altitude and low temperatures makes the growing season very short (see Table 3-1).
GROWING SEASON PROFILE FOR THE SAN LUIS VALLEY,
Annual Mean Average Annual
Growing Season Temperature Precipitation
(Days) *C (*F) cm (Inches)
Alamosa 98 5.3 (41.6) 17.6 (6.94)
Center 96 5.4 (41.8) 18.7 (7.37)
Del Norte 114 6.1 (43.1) 23.9 (9.41)
Hermit Station 11 1.4 (34.6) 40.1 (15.80)
Manassa 90 5.7 (42.3) 18.7 (7.38)
Monte Vista 72 5.3 (41.6) 18.4 (7.25)
Saguache 106 6.1 (43.1) 21.5 (8.49)
Potatoes are the most important cultivated crop, surpassing the combined
value of all other cultivated crops. Barley and wheat are also important grain crops,
with barley in demand as a malting product.
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Hewlett, E.M.; Erickson, M.V.; Ferguson, C.D.; Sherwood, P.B.; Boswell, B.S.; Walter, K.M. et al. Commercial production of ethanol in the San Luis Valley, Colorado. Final Report, report, July 1, 1983; United States. (digital.library.unt.edu/ark:/67531/metadc874948/m1/57/: accessed March 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.