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400971865 19 2016-01-15T10:41:18.953-07:00 10084 PIONEER NATURAL RESOURCES USA INC

5205 N O'CONNOR BLVD STE 200

IRVING TX 75039 James Roybal 719 8467898 James Roybal Enviromental Supervisor 2016-01-15T10:41:18.953-07:00 2016-01-15T10:41:18.937-07:00 444505 in process jamesroybal 2016-01-15T07:43:42.377-07:00 jamesroybal james.roybal@pxd.com 0.00000 james.roybal@pxd.com jamesroybal jamesroybal 2016-01-15T10:41:16.657-07:00 1 400967750 400971865 Kosola, Jason 2016-01-08T00:00:00-07:00 WELL 05 071 07894 LAS ANIMAS SESW 35 32S 66W 6 Y NON-CROP LAND Snowy/Cold 0 0 Lease Operator arrived on the Probe 24-35 location and found a cracked valve at the well head. It apears that freeze may have caused the valve to brake. The operator isolated upon discovery and is estimated that 15bbls of prduced water were spilled. The spill did leave location and ran about 284' with No State Waters involved. Plans for repair and investigation will follow. 400967750 true 2016-01-08T00:00:00-07:00 37.208910 -104.752280 FEE 0 0 0 true <_x0032_7_approved>false S false 0 0 0 0 0 true false true false false 0 2016-01-09T12:38:22.78-07:00 400971865 Produced water quality data from the well associated with or representative of the spill is attached. Pioneer and its consulting geochemical specialists have found, after 20 years operating in the Raton Basin CBM field, that soil sampling no longer adds useful data on smaller, short-term spills as land uses and the environment are not sensitive to short-term exposure to CBM produced water. Effects to soil chemistry from short-term CBM produced water spills are temporary and shallow for several reasons: the water does not contain crude oil or liquid hydrocarbons; the TDS is significantly less than 10,000 mg/L; it is suitable for livestock watering, wildlife and in many cases surface discharge. Mixed with other water it is suitable for irrigation without impact. When requested by the agency or landowner Pioneer has and will collect soil samples. Pioneer Natural Resources request closure of this spill based on this statement and attached water quality data. 400971865 400971865 FORM 19 SUBMITTED 400971865.pdf 400971865 400971869 ANALYTICAL RESULTS LF@3762420|400971869 77329 400971865 1 SPILL 2016-01-08T00:00:00-07:00 COGCC Jason Kosola

email

400971865 2 SPILL 2016-01-08T00:00:00-07:00 LACOG Bob Lucero

email

400971865 3 SPILL 2016-01-08T00:00:00-07:00 Land Owner Dave Gourdin

Phone call

400971865 1 2016-01-15T00:00:00-07:00 0 0 true false false false false false 0 false GPS and visual inspection From the NRCS soil map Gulnare-Allens Park Complex 15 2 1170 360 At the time spill occured the well was not running and the check valve that froze and cracked has not been repalced yet. The water from this spill was gathering line water going to the Cottontail Pass WD. The valve will remain isolated until other repairs to the well are made and check valve can be replaced. 0 0 0 0 15 0 0 0 0 0 false false 0 0 false false false false false false false false true true true true 284 2 0 400971865 1 2016-01-15T00:00:00-07:00 true false false false Inadequate communiction is found to be the cause. Had it been clearly comunicated to the lease operator to isolate the valve when the well went down, the freeze would not have occured Leave gathering line valve isolated until well is turned on. Communicate this to other lease operators in weekly meeting to prevent this from happening. false false false Thread was being aborted.