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401011023 19 2016-03-17T14:21:48.607-06:00 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 2016-03-17T14:21:48.607-06:00 2016-03-17T14:21:48.577-06:00 445180 in process jamesroybal 2016-03-17T13:45:02.797-06:00 jamesroybal james.roybal@pxd.com 0.00000 james.roybal@pxd.com jamesroybal jamesroybal 2016-03-17T14:21:45.577-06:00 401004573 401011023 Kosola, Jason 2016-03-11T00:00:00-07:00 WATER GATHERING SYSTEM/LINE LAS ANIMAS NESE 28 32S 66W 6 Y NON-CROP LAND Warm Sunny 0 0 We had a break in a gathering line on the Cervante 43-28 (API 05-071-09234) location that was found by crews in the area. Calls were made and the Lease operator was notified. The leak was isolated when he arrived. Most of the spill remained on the location but a small amount ran about 10’ down the access road were it ended. It is estimated that 3bbls of produced water were spilled with No State Waters involved. Plans are being made to repair the line and investigate 427440 401004573 true 2016-03-11T00:00:00-07:00 37.228500 -104.779750 FEE 0 0 0 true <_x0032_7_approved>false S false 0 0 >=1 and <5 0 0 false false false true false 0 2016-03-13T07:29:13.11-06:00 401011023 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. 401011023 401011023 FORM 19 SUBMITTED 401011023.pdf 401011023 401011079 ANALYTICAL RESULTS J25745-1 UDS Level 2 Report Final Report.pdf 1031942 401011023 1 SPILL 2016-03-11T00:00:00-07:00 COGCC Jason Kosola

email

401011023 2 SPILL 2016-03-11T00:00:00-07:00 LACOG Bob Lucero

email

401011023 3 SPILL 2016-03-12T00:00:00-07:00 Land Owner R.G. Costiloe

Phone

401011023 1 2016-03-17T00:00:00-06:00 0 0 true false false false false false false Visual inspection and GPS From the NRCS soil survey map: Gulnare-Allens Park Complex 200 2 1130 1360 1130 When repairs were made it was found that the 2” poly line burst from pressure. The Operator had switched the gathering water from going to the pit, too the gathering line. The operator was unfamiliar with the valves at the tie in point and was un-knowingly pumping against a closed valve. The well will remain shut in until the liner in the pit is replaced, the valve configuration is figured out, or a tank is set on location to produce into. 0 0 0 0 3 0 0 0 0 0 3500 false false 0 0 false false false false false false false false true true false false 110 2 401011023 1 2016-03-17T00:00:00-06:00 true false false false Operator was unaware of the valve configuration and was pumping against a closed valve when he switched the water from the pit to gathering. This caused the pressure to burst the poly line. The well will remain shut in until the production pit is re-lined; the valve configuration is figured out, or a tank is set on location. false false false Thread was being aborted.