Environmental Sample

COGIS - Environmental Sample Site Information

#271695 Information

Sample Site ID	271695
FacilityType	Gas	Proj Number
County	RIO BLANCO - 103	Location	SESW 11 3S97W
Elevation	6448	Lat/Long	39.800208/-108.248507
DWR Receipt #		WellDepth

Related Facility/Well
API Number:	05-103-10424	Well Name:	EUREKA UNIT 8814A N11 397
Well Status:	PR	Operator Name:	QB ENERGY OPERATING LLC
Location:	SESW 11 3S 97W

CECMC Water Quality Database Disclaimer
The analytical data And other information In this database are a compilation Of data collected by CECMC staff, Data submitted To CECMC from a variety Of third parties, And historical data. All analytical data collected by Or submitted To the CECMC Is Public information And CECMC posts the data To this database As a Public service. The data Is provided For informational purposes only. CECMC does Not conduct a detailed review Of quality control/quality assurance protocols, chain Of custody procedures, Or field Or laboratory methodologies On data received from third parties. The level Of review performed On historical data Is unknown. CECMC does Not regularly perform formal data validation For any Of the data posted To this database. The CECMC makes no warranties Or representations Of any kind, express Or implied, regarding the quality, accuracy, reliability, merchantability, Or fitness For a particular purpose Of the data provided herein.

Sample(s)

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672215

672216

672217

Sample ID: 672215 Sample Date: 09/11/2025 Matrix: GAS Collection Point: BDH Type: SCAS Lab: EMPACT

Sample Results for Sample # 672215 EMPACT ID: 202509080-03
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
AD6730	2,2,4-Trimethylpentane	ND	MOL %	0.0001	ND
AD6730	BENZENE	0.0125	MOL %	0.0001
AD6730	BRITISH THERMAL UNITS	1083.4	BTU/cuft
AD6730	BUTANE	0.2114	MOL %	0.0001
AD6730	C11 (mixed isomers)	0.0023	MOL %	0.0001
AD6730	C12 (mixed isomers)	0.0022	MOL %	0.0001
AD6730	C13 (mixed isomers)	0.0019	MOL %	0.0001
AD6730	CARBON DIOXIDE	0.01	MOL %	0.01
AD6730	CYCLOHEXANE	0.0184	MOL %	0.0001
AD6730	Decane	0.002	MOL %	0.0001
AD6730	Decanes (mixed isomers)	0.0045	MOL %	0.0001
AD6730	ETHANE	4.6134	MOL %	0.0001
AD6730	ETHYLBENZENE	0.0008	MOL %	0.0001
AD6730	Helium	0.01	MOL %	0.01
AD6730	Heptane	0.0144	MOL %	0.0001
AD6730	HYDROGEN	0.01	MOL %	0.01
AD6730	ISOBUTANE	0.2308	MOL %	0.0001
AD6730	ISOPENTANE	0.1068	MOL %	0.0001
AD6730	METHANE	93.0716	MOL %	1e-005
AD6730	N-HEXANE	0.0342	MOL %	0.0001
AD6730	n-octane	0.0061	MOL %	0.0001
AD6730	NITROGEN (N2)	0.29	MOL %	0.01
AD6730	NONANE	0.0032	MOL %	0.0001
AD6730	Other Heptanes	0.0584	MOL %	0.0001
AD6730	Other Hexanes	0.0759	MOL %	0.0001
AD6730	Other Nonanes	0.0089	MOL %	0.0001
AD6730	Other Octanes	0.0171	MOL %	0.0001
AD6730	OXYGEN/ARGON RATIO	ND	MOL %	0.01	ND
AD6730	PENTANE	0.0787	MOL %	0.0001
AD6730	PROPANE	1.0873	MOL %	0.0001
AD6730	SPECIFIC GRAVITY	0.6046	RATIO_AIR
AD6730	Tetradecanes +	0.003	MOL %	0.0001
AD6730	TOLUENE	0.0103	MOL %	0.0001
AD6730	TOTAL XYLENES	0.0039	MOL %	0.0001
SOP	DELTA 13C C1	-39.3	per mil
SOP	DELTA 13C C2	-27.2	per mil
SOP	DELTA 13C C3	-27	per mil
SOP	DELTA D C1	-179.8	per mil

Sample ID: 672216 Sample Date: 09/11/2025 Matrix: GAS Collection Point: PRDC Type: PCS Lab: EMPACT

Sample Results for Sample # 672216 EMPACT ID: 202509080-01
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
AD6730	2,2,4-Trimethylpentane	0.0001	MOL %	0.0001
AD6730	BENZENE	0.0208	MOL %	0.0001
AD6730	BRITISH THERMAL UNITS	996.4	BTU/cuft
AD6730	BUTANE	0.0972	MOL %	0.0001
AD6730	C11 (mixed isomers)	0.0002	MOL %	0.0001
AD6730	C12 (mixed isomers)	0.0001	MOL %	0.0001
AD6730	C13 (mixed isomers)	0.0001	MOL %	0.0001
AD6730	CARBON DIOXIDE	4.41	MOL %	0.01
AD6730	CYCLOHEXANE	0.0089	MOL %	0.0001
AD6730	Decane	0.0009	MOL %	0.0001
AD6730	Decanes (mixed isomers)	0.0046	MOL %	0.0001
AD6730	ETHANE	1.8785	MOL %	0.0001
AD6730	ETHYLBENZENE	0.0023	MOL %	0.0001
AD6730	Helium	ND	MOL %	0.01	ND
AD6730	Heptane	0.013	MOL %	0.0001
AD6730	HYDROGEN	0.01	MOL %	0.01
AD6730	ISOBUTANE	0.0618	MOL %	0.0001
AD6730	ISOPENTANE	0.0233	MOL %	0.0001
AD6730	METHANE	92.9628	MOL %	1e-005
AD6730	N-HEXANE	0.0081	MOL %	0.0001
AD6730	n-octane	0.0138	MOL %	0.0001
AD6730	NITROGEN (N2)	0.06	MOL %	0.01
AD6730	NONANE	0.0066	MOL %	0.0001
AD6730	Other Heptanes	0.064	MOL %	0.0001
AD6730	Other Hexanes	0.026	MOL %	0.0001
AD6730	Other Nonanes	0.0231	MOL %	0.0001
AD6730	Other Octanes	0.0417	MOL %	0.0001
AD6730	OXYGEN/ARGON RATIO	ND	MOL %	0.01	ND
AD6730	PENTANE	0.0112	MOL %	0.0001
AD6730	PROPANE	0.1815	MOL %	0.0001
AD6730	SPECIFIC GRAVITY	0.6181	RATIO_AIR
AD6730	Tetradecanes +	ND	MOL %	0.0001	ND
AD6730	TOLUENE	0.0442	MOL %	0.0001
AD6730	TOTAL XYLENES	0.0252	MOL %	0.0001
SOP	DELTA 13C C1	-35.1	per mil
SOP	DELTA 13C C2	-23.9	per mil
SOP	DELTA 13C C3	-23	per mil
SOP	DELTA 13C CO2	-4.5	per mil
SOP	DELTA 13C iC4	-26.6	per mil
SOP	Delta 13C iC5	-21.1	per mil
SOP	DELTA 13C nC4	-21.7	per mil
SOP	DELTA D C1	-171.5	per mil

Sample ID: 672217 Sample Date: 09/11/2025 Matrix: GAS Collection Point: INTCase Type: INT Lab: EMPACT

Sample Results for Sample # 672217 EMPACT ID: 202509080-02
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
AD6730	2,2,4-Trimethylpentane	ND	MOL %	0.0001	ND
AD6730	BENZENE	0.0496	MOL %	0.0001
AD6730	BRITISH THERMAL UNITS	1207.6	BTU/cuft
AD6730	BUTANE	1.3373	MOL %	0.0001
AD6730	C11 (mixed isomers)	ND	MOL %	0.0001	ND
AD6730	C12 (mixed isomers)	ND	MOL %	0.0001	ND
AD6730	C13 (mixed isomers)	ND	MOL %	0.0001	ND
AD6730	CARBON DIOXIDE	0.92	MOL %	0.01
AD6730	CYCLOHEXANE	0.034	MOL %	0.0001
AD6730	Decane	ND	MOL %	0.0001	ND
AD6730	Decanes (mixed isomers)	0.0001	MOL %	0.0001
AD6730	ETHANE	7.0624	MOL %	0.0001
AD6730	ETHYLBENZENE	0.0008	MOL %	0.0001
AD6730	Helium	0.01	MOL %	0.01
AD6730	Heptane	0.0198	MOL %	0.0001
AD6730	HYDROGEN	ND	MOL %	0.01	ND
AD6730	ISOBUTANE	0.7897	MOL %	0.0001
AD6730	ISOPENTANE	0.3828	MOL %	0.0001
AD6730	METHANE	83.6214	MOL %	1e-005
AD6730	N-HEXANE	0.0878	MOL %	0.0001
AD6730	n-octane	0.0029	MOL %	0.0001
AD6730	NITROGEN (N2)	0.41	MOL %	0.01
AD6730	NONANE	0.0001	MOL %	0.0001
AD6730	Other Heptanes	0.0775	MOL %	0.0001
AD6730	Other Hexanes	0.1678	MOL %	0.0001
AD6730	Other Nonanes	0.0018	MOL %	0.0001
AD6730	Other Octanes	0.0146	MOL %	0.0001
AD6730	OXYGEN/ARGON RATIO	0.01	MOL %	0.01
AD6730	PENTANE	0.3732	MOL %	0.0001
AD6730	PROPANE	4.5987	MOL %	0.0001
AD6730	SPECIFIC GRAVITY	0.7003	RATIO_AIR
AD6730	Tetradecanes +	ND	MOL %	0.0001	ND
AD6730	TOLUENE	0.0248	MOL %	0.0001
AD6730	TOTAL XYLENES	0.0029	MOL %	0.0001
SOP	DELTA 13C C1	-42.4	per mil
SOP	DELTA 13C C2	-32	per mil
SOP	DELTA 13C C3	-29.5	per mil
SOP	DELTA 13C CO2	-12.4	per mil
SOP	DELTA 13C iC4	-29.4	per mil
SOP	Delta 13C iC5	-27.7	per mil
SOP	DELTA 13C nC4	-29.2	per mil
SOP	Delta 13C nC5	-29.1	per mil
SOP	DELTA D C1	-180.4	per mil

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COGIS - Environmental Sample Site Information

Sample ID: 672215 Sample Date: 09/11/2025 Matrix: GAS Collection Point: BDH Type: SCAS Lab: EMPACT

Sample ID: 672216 Sample Date: 09/11/2025 Matrix: GAS Collection Point: PRDC Type: PCS Lab: EMPACT

Sample ID: 672217 Sample Date: 09/11/2025 Matrix: GAS Collection Point: INTCase Type: INT Lab: EMPACT