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Cement Plug No. 4: On September 26, 2013, RRWS was onsite at 07:30 hours, warmed up the <br />equipment, ran in the hole and tagged the top of Cement Plug No. 3 at 535 feet MD GL. The <br />third cement plug resulted in 647 feet of cement in the hole. The drill pipe was pulled back to <br />530 feet MD GL prior to pumping Cement Plug No. 4. NW Ready Mix delivered the cement for <br />the fourth plug number (7 cubic yards mixed at 19 sacks per yard with 15% fly ash additive) at <br />08:35 hours on September 26, 2013. An accelerant (1% CaCI) was added to the cement onsite <br />(in the truck) prior to dumping. RRWS started pumping cement at 08:45 hours and finished <br />pumping 20 minutes later. Good cement was circulated to surface 15 minutes into pumping <br />and 1.75 yards was pumped away. It took 23.25 cubic yards of cement to plug back to <br />approximately 30 feet MD GL below ground level. The pump was hooked up to the water tank <br />and was pumped clean, with waste water going into the pit. While the pump was being <br />cleaned, the crew pulled out the remaining 17 joints of pipe and laid them down. The drill pipe, <br />hoses and plastic tub were cleaned. <br />On September 28, 2013, RRWS was onsite at 07:30 hours and warmed up the equipment. NSI <br />filled up the water tank for cleaning cement from the equipment. NW Ready Mix arrived on- <br />site at 08:20 hours. Approximately 0.5 cubic yards of cement was poured down the casing, <br />bringing the wet cement top off to surface. The top of the P &A cement plug in the 1 -3A well <br />was measured at 3.4 feet below GL after curing. <br />Conclusion <br />The Natural Soda, Inc. rotary - drilled vertical monitor well 1 -3A was successfully plugged and <br />abandoned on September 28, 2013. A total of 23.75 cubic yards (460 sacks) of Portland Type <br />II /V cement were pumped down hole to plug the well from a depth of 1,860 feet MD GL, above <br />where the cast iron bridge plug (CIBP) was set during previous recompletion, to near surface <br />(see attached P &A Diagram). The intermediate casing was cut off below surface, and a dry hole <br />marker was welded onto the well head prior to reclamation of the pad. <br />Daub & Associates, Inc. Page 3 of 3 1 -3A P &A Report <br />