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400968338 19 2016-01-11T12:58:10.407-07:00 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 2016-01-11T12:58:10.407-07:00 2016-01-11T12:58:10.36-07:00 444500 in process jamesroybal 2016-01-11T12:26:19.437-07:00 jamesroybal james.roybal@pxd.com 0.00000 james.roybal@pxd.com jamesroybal jamesroybal 2016-01-11T12:58:04.127-07:00 400964966 400968338 Kosola, Jason 2016-01-04T00:00:00-07:00 WELL 05 071 06588 LAS ANIMAS nenw 8 32s 65w 6 Y NON-CROP LAND cold 0 0 Lease Operator found a valve leaking at the Carl 21-8 well site and when he atempted to try and tighten the fitting the valve was cracked and came apart reaslesing about 15bbls of produced water before it was isolated. the spill ran down the lease road and ended in a meadow. Water from this spill normaly goes to permited outfall 065A. No State water were involed. 400964966 true 2016-01-04T00:00:00-07:00 37.279450 -104.698010 FEE 0 0 0 true <_x0032_7_approved>false S false 0 0 >=5 and <100 0 0 true false true false false 0 2016-01-06T09:29:19.61-07:00 400968338 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. 400968338 400968338 FORM 19 SUBMITTED 400968338.pdf 400968338 400968409 ANALYTICAL RESULTS Polly 065A water quality.pdf 51994 400968338 1 SPILL 2016-01-05T00:00:00-07:00 COGCC Jason Kosola

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400968338 2 SPILL 2016-01-05T00:00:00-07:00 LACOG Bob Lucero

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400968338 3 SPILL 2016-01-05T00:00:00-07:00 Land Owner Carl Zele

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400968338 1 2016-01-11T00:00:00-07:00 0 0 true false false false false false 0 false GPS and visual inspection From the NRCS soil survey: Gulnare-Allens Park Complex 150 1 1500 280 2000 The valve was replaced. The well was not running at the time this occured and the water spilled was from the gathering side and normally goes to permited outfall 065A. The Analytical results attached are for this outfall. 0 0 0 0 15 0 0 0 0 0 false false 0 0 false false false false false false false false true true false true 460 1 0 400968338 1 2016-01-11T00:00:00-07:00 false true false false It apears that freeze caused the valve to split Isolate the valve before repairs are atempted to prevent spill false false false Thread was being aborted.