BRAZOS MUTUAL DOMESTIC WATER CONSUMERS ASSOC. NEW WELL

Ron Stafford

July 16, 2009

The BMDWCA’s new well is progressing. The drillers reached 600 ft. depth yesterday and the well was geophysical logged. This logging process identifies the diameter of the well down to the 600 ft. depth as well as the various strata throughout the entire well. The Hydrologists from Bio-West and Daniel B. Stephens Co. will analyze this data and determine the well casing configuration. This may result in screens placed at different depths to maximize water production. They anticipate that 100 ft. of screening will be used. The screen is the same pipe as the casing but has numerous small slits that are laser cut. Once the casing is complete, they will gravel pack around the entire screen with small silica gravel. At the top of the gravel pack they will seal with bentonite which will absorb water and expand to seal the gravel. Then concrete will cover the bentonite to seal this layer. They have determined that the static water level is about 200 ft. which is about the same as the existing well in this location. The well will be cased either today or tomorrow and then will be developed by pumping water out for an undetermined length of time. This will probably be 1-2 days. Then the drilling crew will remove all of their equipment and a pumping crew will move in to perform several tests including well capacity, chemistry, and potential natural contaminates such as uranium and arsenic. Once the data is complete and analyzed, the New Mexico State Engineers will review this material and will give us directions to proceed with hooking up the well to our system.