<_x0034_00984086>

400984086 19 2016-02-04T13:40:08.78-07:00 10084 PIONEER NATURAL RESOURCES USA INC

5205 N O'CONNOR BLVD STE 200

IRVING TX 75039 James Roybal 719 846-7898 James Roybal Enviromental supervisor 2016-02-04T13:40:08.78-07:00 2016-02-04T13:40:08.75-07:00 444653 in process jamesroybal 2016-02-04T13:12:39.483-07:00 jamesroybal james.roybal@pxd.com 0.00000 james.roybal@pxd.com jamesroybal jamesroybal 2016-02-04T13:40:03.97-07:00 400980915 400984086 Kosola, Jason 2016-01-26T00:00:00-07:00 WATER GATHERING SYSTEM/LINE LAS ANIMAS SWSW 18 32S 65W 6 Y NON-CROP LAND Warm, sunny 0 0 Crews in the area reported a leak at the Muffins 14-18 well site yesterday. It appears the freeze may have caused the above ground gathering line to brake. The lease operator was notified and was isolated upon arrival. It is estimated that 3bbls of produced water were spilled. the water did not leave the locations and No State Waters were involved. 427440 400980915 true 2016-01-26T00:00:00-07:00 37.251360 -104.720470 FEE 0 0 0 true <_x0032_7_approved>false S false 0 0 >=1 and <5 0 0 false false false true false 0 2016-01-29T14:19:56.767-07:00 400984086 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. 400984086 400984086 FORM 19 SUBMITTED 400984086.pdf 400984086 400984140 ANALYTICAL RESULTS Muffins 14-18 water quality - 2006-08-15.pdf 12049 400984086 1 SPILL 2016-01-28T00:00:00-07:00 COGCC Jason Kosola

email

400984086 2 SPILL 2016-01-28T00:00:00-07:00 LACOG Bob Lucero

email

400984086 3 SPILL 2016-01-29T00:00:00-07:00 Land Owner Charlie Hagen

Phone

400984086 1 2016-02-04T00:00:00-07:00 0 0 true false false false false false 0 false Visual inspection and GPS From the NRCS soil survey map: Gulnare-Allens Par complex 40 3 565 580 2900 At the time the freeze occured the well was not running just free flowing. An isolation valve will be installed to isolate gathering water from well head when pump is not running. Damaged piece of pipe will be replaced. 0 0 0 0 3 0 0 0 0 0 false false 0 0 false false false false false false false false true true false true 50 1 0 400984086 1 2016-02-04T00:00:00-07:00 false false false true Freezing temperatures It was determined that inadequate design or instalation of original equipment as cause. If there was an isolation valve in place, freeze would not have occured Plans are being made to install an isolation valve on the well pad to isolate gathering water from well head. false false false Thread was being aborted.