Solicitaton_140L4922R0001_Question_and_Answer_Document_1_0001.docx

1. Does the BLM have additional information on the Case Flats Well or the Horn Well?

Case Flats Well- The BLM installed a windmill and developed the well in 1978. At some early date, the grazing permittee drilled the well, but never developed it. It was used historically as a surface water source, where they dug down and created a pit reservoir. A reserved water right (page 456) of the “United States Reserved Right Appurtenant to Public Springs and Water Holes Reserved Under 43 U.S.C. $141 and 43 U.S.C. $300, Water Division 6 (aka AR’72) was decreed for the Case Flat Pit. A water right for the well was initially filed but may not have been pursued due to the reserved water rights case.

The depth of the well is unknown. The well has 4-inch stove pipe casing, 21’ of 1 ¼” drop pipe, 8’ aermotor windmill on a 21 foot tower.

Last BLM servicing is 2005.

Horn Well- Total depth 118 feet, with a static water level of 78 feet reported. Appears to have been drilled in 1976, and was probably caught up in the reserved rights case... (the Range project file has not been consulted to see what other detail is there…).

1. What is the required yield of each of the wells (in gallons per day)?

The wells are all low yield livestock wells that are generally pumped at 2-5 gpm. (¾ hp pumps were requested). The wells are pumped for about 750-3000 gallons per day, depending on the well, for generally less than 30 days/year. No required yield.

1. Does the BLM have any recent pump test data on the wells?

The given yield in the well completion information is generally higher than the actual well production, especially over time. (I’m unaware of any recent pump test data…). Again, generally 2-5 gpm is what the wells are pumped at.

1. Does the BLM have any production history for the wells (pumping rate, daily demand, season of use, etc.)?

The state of Colorado monitors Case Flats Well yearly, indicating water level over time.

BLM has stocking rates for the pastures, but the wells are generally not the sole water source and season of use can vary as grazing systems defer or vary grazing schedules for a pasture.

1. Are the solar conversions to be open systems – where the water fills a tank or trough and then is allowed to overflow to a pit, pond, or channel- or water conservation measures to be employed – float switch or valve to shut off the pump when the tank/troughs are full?

Float valves are used on all wells.

1. Is generator backup capability desired on the conversions?

Not necessary—that is the reason for converting to solar.

1. Is replumbing the well to the distribution system (to tank/trough) to be included in this project, or just getting the pumps in the well and water to the surface?

Just replacing the windmills with solar pumps/panels and cleaning out the three wells.

1. Is there equipment (pumps, drop pipe, etc.) in the Flinnau #2 and/or Fenian wells?

The grazing permittee will have the equipment removed prior to the requested work.

1. What kind (make, model) of pump was pulled from Soap Creek? What does the rest of the pumping system consist of – solar array (number of panels, watts, amps, volts), controls (simple on/off, or other controller)?

We were looking at a Gould 7GS07412CL, model 7GS, GS series, 4 “ submersible pump, 230 volt.

There is a controller… but not currently connected. It appears it is simply connecting two extension cords to run the pump. (photos attached)