Environmental Sample

COGIS - Environmental Sample Site Information

#482738 Information

Sample Site ID	482738
FacilityType	OG	Proj Number
County	WELD - 123	Location	SWNE 8 4N64W
Elevation	4779	Lat/Long	40.32792/-104.57234
DWR Receipt #		WellDepth

Related Facility/Well
API Number:	05-123-51803	Well Name:	Hen 13N
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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674294

674293

662649

662650

Sample ID: 674294 Sample Date: 12/11/2025 Matrix: GAS Collection Point: PRD Type: PRDG Lab: Dolan Integration Group

Sample Results for Sample # 674294 Dolan Integration Group ID: DIG-042417
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	959	BTU/cuft
SOP	BUTANE	0.405	MOL %	0.005
SOP	C6+ (hexanes +)	ND	MOL %	0.005	ND
SOP	CARBON DIOXIDE	0.279	MOL %	0.005
SOP	DELTA 13C C1	-44.1	per mil
SOP	DELTA 13C C2	-30.3	per mil
SOP	DELTA 13C C3	-27	per mil
SOP	DELTA 13C CO2	-16	per mil
SOP	DELTA 13C iC4	-29.8	per mil
SOP	Delta 13C iC5	-26.9	per mil
SOP	DELTA 13C nC4	-25.6	per mil
SOP	Delta 13C nC5	-25.3	per mil
SOP	DELTA D C1	-238	per mil
SOP	ETHANE	9.828	MOL %	0.005
SOP	ETHENE	ND	MOL %	0.005	ND
SOP	Helium	ND	MOL %	0.005	ND
SOP	HYDROGEN	0.25	MOL %	0.005
SOP	ISOBUTANE	0.277	MOL %	0.005
SOP	ISOPENTANE	0.024	MOL %	0.005
SOP	METHANE	67.725	MOL %	0.005
SOP	NITROGEN (N2)	14.325	MOL %	0.005
SOP	OXYGEN + ARGON	3.895	MOL %	0.005
SOP	PENTANE	0.012	MOL %	0.005
SOP	PROPANE	2.979	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.725	No Unit

Sample ID: 674293 Sample Date: 12/11/2025 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample Results for Sample # 674293 Dolan Integration Group ID: DIG-042416
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	20	BTU/cuft
SOP	BUTANE	0.006	MOL %	0.005
SOP	C6+ (hexanes +)	0.006	MOL %	0.005
SOP	CARBON DIOXIDE	0.215	MOL %	0.005
SOP	DELTA 13C C1	-49	per mil
SOP	DELTA 13C C2	-32	per mil
SOP	DELTA 13C C3	-28.6	per mil
SOP	DELTA 13C CO2	-28.7	per mil
SOP	DELTA D C1	-239	per mil
SOP	ETHANE	0.091	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	ND	MOL %	0.005	ND
SOP	ISOPENTANE	ND	MOL %	0.005	ND
SOP	METHANE	1.602	MOL %	0.005
SOP	NITROGEN (N2)	96.945	MOL %	0.005
SOP	OXYGEN + ARGON	0.775	MOL %	0.005
SOP	PENTANE	ND	MOL %	0.005	ND
SOP	PROPANE	0.031	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.963	No Unit

Sample ID: 662649 Sample Date: 09/25/2024 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample Results for Sample # 662649 Dolan Integration Group ID: DIG-037164
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	30	BTU/cuft
SOP	BUTANE	0.008	MOL %	0.005
SOP	C6+ (hexanes +)	0.008	MOL %	0.005
SOP	CARBON DIOXIDE	0.179	MOL %	0.005
SOP	DELTA 13C C1	-45.5	per mil
SOP	DELTA 13C C2	-30.8	per mil
SOP	DELTA 13C C3	-28.1	per mil
SOP	DELTA 13C nC4	-26.1	per mil
SOP	Delta 13C nC5	-26.8	per mil
SOP	DELTA D C1	-235	per mil
SOP	ETHANE	0.158	MOL %	0.005
SOP	ETHENE	ND	MOL %	0.005	ND
SOP	Helium	ND	MOL %	0.005	ND
SOP	HYDROGEN	1.342	MOL %	0.005
SOP	ISOBUTANE	ND	MOL %	0.005	ND
SOP	ISOPENTANE	ND	MOL %	0.005	ND
SOP	METHANE	2.381	MOL %	0.005
SOP	NITROGEN (N2)	93.014	MOL %	0.005
SOP	OXYGEN + ARGON	2.869	MOL %	0.005
SOP	PENTANE	ND	MOL %	0.005	ND
SOP	PROPANE	0.039	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.963	No Unit

Sample ID: 662650 Sample Date: 09/25/2024 Matrix: GAS Collection Point: PRD Type: PRDG Lab: Dolan Integration Group

Sample Results for Sample # 662650 Dolan Integration Group ID: DIG-037165
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	1285	BTU/cuft
SOP	BUTANE	2.321	MOL %	0.005
SOP	C6+ (hexanes +)	0.445	MOL %	0.005
SOP	CARBON DIOXIDE	2.306	MOL %	0.005
SOP	DELTA 13C C1	-46.7	per mil
SOP	DELTA 13C C2	-31.7	per mil
SOP	DELTA 13C C3	-28.1	per mil
SOP	DELTA 13C CO2	2.4	per mil
SOP	DELTA 13C iC4	-30.8	per mil
SOP	Delta 13C iC5	-28.4	per mil
SOP	DELTA 13C nC4	-27.2	per mil
SOP	Delta 13C nC5	-27.1	per mil
SOP	DELTA D C1	-240	per mil
SOP	ETHANE	13.002	MOL %	0.005
SOP	ETHENE	ND	MOL %	0.005	ND
SOP	Helium	ND	MOL %	0.005	ND
SOP	HYDROGEN	ND	MOL %	0.005	ND
SOP	ISOBUTANE	0.969	MOL %	0.005
SOP	ISOPENTANE	0.651	MOL %	0.005
SOP	METHANE	70.898	MOL %	0.005
SOP	NITROGEN (N2)	2.055	MOL %	0.005
SOP	OXYGEN + ARGON	0.469	MOL %	0.005
SOP	PENTANE	0.75	MOL %	0.005
SOP	PROPANE	6.135	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.795	No Unit

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COGIS - Environmental Sample Site Information

Sample ID: 674294 Sample Date: 12/11/2025 Matrix: GAS Collection Point: PRD Type: PRDG Lab: Dolan Integration Group

Sample ID: 674293 Sample Date: 12/11/2025 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample ID: 662649 Sample Date: 09/25/2024 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample ID: 662650 Sample Date: 09/25/2024 Matrix: GAS Collection Point: PRD Type: PRDG Lab: Dolan Integration Group