Environmental Sample

COGIS - Environmental Sample Site Information

#482731 Information

Sample Site ID	482731
FacilityType	OG	Proj Number
County	WELD - 123	Location	SWNE 8 4N64W
Elevation	4779	Lat/Long	40.328169/-104.572344
DWR Receipt #		WellDepth

Related Facility/Well
API Number:	05-123-51796	Well Name:	Hen 07N
Well Status:	PR	Operator Name:	PDC ENERGY INC
Location:	SWNE 8 4N 64W

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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674290

674289

661624

661625

Sample ID: 674290 Sample Date: 12/11/2025 Matrix: GAS Collection Point: PRD Type: PRDG Lab: Dolan Integration Group

Sample Results for Sample # 674290 Dolan Integration Group ID: DIG-042415
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	1029	BTU/cuft
SOP	BUTANE	0.266	MOL %	0.005
SOP	C6+ (hexanes +)	ND	MOL %	0.005	ND
SOP	CARBON DIOXIDE	0.106	MOL %	0.005
SOP	DELTA 13C C1	-45.9	per mil
SOP	DELTA 13C C2	-30.8	per mil
SOP	DELTA 13C C3	-27.5	per mil
SOP	DELTA D C1	-237	per mil
SOP	ETHANE	9.182	MOL %	0.005
SOP	ETHENE	ND	MOL %	0.005	ND
SOP	Helium	ND	MOL %	0.005	ND
SOP	HYDROGEN	0.276	MOL %	0.005
SOP	ISOBUTANE	0.186	MOL %	0.005
SOP	ISOPENTANE	0.016	MOL %	0.005
SOP	METHANE	78.448	MOL %	0.005
SOP	NITROGEN (N2)	7.38	MOL %	0.005
SOP	OXYGEN + ARGON	1.938	MOL %	0.005
SOP	PENTANE	0.009	MOL %	0.005
SOP	PROPANE	2.194	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.669	No Unit

Sample ID: 674289 Sample Date: 12/11/2025 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample Results for Sample # 674289 Dolan Integration Group ID: DIG-042414
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	25	BTU/cuft
SOP	BUTANE	0.019	MOL %	0.005
SOP	C6+ (hexanes +)	ND	MOL %	0.005	ND
SOP	CARBON DIOXIDE	1.014	MOL %	0.005
SOP	DELTA 13C C1	-44.2	per mil
SOP	DELTA 13C C2	-29.8	per mil
SOP	DELTA 13C C3	-27.2	per mil
SOP	DELTA 13C CO2	-28.4	per mil
SOP	DELTA 13C iC4	-30.4	per mil
SOP	Delta 13C iC5	-27.2	per mil
SOP	DELTA 13C nC4	-29.2	per mil
SOP	Delta 13C nC5	-26.8	per mil
SOP	DELTA D C1	-235	per mil
SOP	ETHANE	0.163	MOL %	0.005
SOP	ETHENE	ND	MOL %	0.005	ND
SOP	Helium	ND	MOL %	0.005	ND
SOP	HYDROGEN	0.329	MOL %	0.005
SOP	ISOBUTANE	0.009	MOL %	0.005
SOP	ISOPENTANE	ND	MOL %	0.005	ND
SOP	METHANE	1.801	MOL %	0.005
SOP	NITROGEN (N2)	92.688	MOL %	0.005
SOP	OXYGEN + ARGON	3.916	MOL %	0.005
SOP	PENTANE	ND	MOL %	0.005	ND
SOP	PROPANE	0.061	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.971	No Unit

Sample ID: 661624 Sample Date: 08/12/2024 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample Results for Sample # 661624 Dolan Integration Group ID: DIG-036627
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	59	BTU/cuft
SOP	BUTANE	0.023	MOL %	0.005
SOP	C6+ (hexanes +)	ND	MOL %	0.005	ND
SOP	CARBON DIOXIDE	0.07	MOL %	0.005
SOP	DELTA 13C C1	-46.8	per mil
SOP	DELTA 13C C2	-31.1	per mil
SOP	DELTA 13C C3	-27.9	per mil
SOP	DELTA D C1	-242	per mil
SOP	ETHANE	0.429	MOL %	0.005
SOP	ETHENE	ND	MOL %	0.005	ND
SOP	Helium	ND	MOL %	0.005	ND
SOP	HYDROGEN	0.712	MOL %	0.005
SOP	ISOBUTANE	0.013	MOL %	0.005
SOP	ISOPENTANE	ND	MOL %	0.005	ND
SOP	METHANE	4.543	MOL %	0.005
SOP	NITROGEN (N2)	90.348	MOL %	0.005
SOP	OXYGEN + ARGON	3.725	MOL %	0.005
SOP	PENTANE	ND	MOL %	0.005	ND
SOP	PROPANE	0.137	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.955	No Unit

Sample ID: 661625 Sample Date: 08/12/2024 Matrix: GAS Collection Point: PRD Type: PRDG Lab: Dolan Integration Group

Sample Results for Sample # 661625 Dolan Integration Group ID: DIG-036628
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	1182	BTU/cuft
SOP	BUTANE	0.979	MOL %	0.005
SOP	C6+ (hexanes +)	0.135	MOL %	0.005
SOP	CARBON DIOXIDE	ND	MOL %	0.005	ND
SOP	DELTA 13C C1	-46.1	per mil
SOP	DELTA 13C C2	-30.4	per mil
SOP	DELTA 13C C3	-27.2	per mil
SOP	DELTA 13C nC4	-26.7	per mil
SOP	Delta 13C nC5	-26.5	per mil
SOP	DELTA D C1	-239	per mil
SOP	ETHANE	10.783	MOL %	0.005
SOP	ETHENE	ND	MOL %	0.005	ND
SOP	Helium	ND	MOL %	0.005	ND
SOP	HYDROGEN	0.216	MOL %	0.005
SOP	ISOBUTANE	0.425	MOL %	0.005
SOP	ISOPENTANE	0.248	MOL %	0.005
SOP	METHANE	82.92	MOL %	0.005
SOP	NITROGEN (N2)	0.817	MOL %	0.005
SOP	OXYGEN + ARGON	0.103	MOL %	0.005
SOP	PENTANE	0.283	MOL %	0.005
SOP	PROPANE	3.09	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.674	No Unit

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COGIS - Environmental Sample Site Information

Sample ID: 674290 Sample Date: 12/11/2025 Matrix: GAS Collection Point: PRD Type: PRDG Lab: Dolan Integration Group

Sample ID: 674289 Sample Date: 12/11/2025 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample ID: 661624 Sample Date: 08/12/2024 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample ID: 661625 Sample Date: 08/12/2024 Matrix: GAS Collection Point: PRD Type: PRDG Lab: Dolan Integration Group