Environmental Sample

COGIS - Environmental Sample Site Information

#482732 Information

Sample Site ID	482732
FacilityType	OG	Proj Number
County	WELD - 123	Location	SWNE 8 4N64W
Elevation	4779	Lat/Long	40.327838/-104.572339
DWR Receipt #		WellDepth

Related Facility/Well
API Number:	05-123-51797	Well Name:	Hen 15N
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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674089

674091

Sample ID: 674089 Sample Date: 12/01/2025 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample Results for Sample # 674089 Dolan Integration Group ID: DIG-042328
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	9	BTU/cuft
SOP	BUTANE	ND	MOL %	0.005	ND
SOP	C6+ (hexanes +)	ND	MOL %	0.005	ND
SOP	CARBON DIOXIDE	0.006	MOL %	0.005
SOP	DELTA 13C C1	-49	per mil
SOP	DELTA 13C C2	-31.3	per mil
SOP	DELTA 13C C3	-28.6	per mil
SOP	Delta 13C iC5	-29.5	per mil
SOP	DELTA D C1	-246	per mil
SOP	ETHANE	0.054	MOL %	0.005
SOP	ETHENE	ND	MOL %	0.005	ND
SOP	Helium	ND	MOL %	0.005	ND
SOP	HYDROGEN	1.104	MOL %	0.005
SOP	ISOBUTANE	ND	MOL %	0.005	ND
SOP	ISOPENTANE	ND	MOL %	0.005	ND
SOP	METHANE	0.663	MOL %	0.005
SOP	NITROGEN (N2)	96.718	MOL %	0.005
SOP	OXYGEN + ARGON	1.436	MOL %	0.005
SOP	PENTANE	ND	MOL %	0.005	ND
SOP	PROPANE	0.02	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.966	No Unit

Sample ID: 674091 Sample Date: 12/01/2025 Matrix: GAS Collection Point: PRD Type: PRDG Lab: Dolan Integration Group

Sample Results for Sample # 674091 Dolan Integration Group ID: DIG-042329
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	1182	BTU/cuft
SOP	BUTANE	1.45	MOL %	0.005
SOP	C6+ (hexanes +)	0.027	MOL %	0.005
SOP	CARBON DIOXIDE	2.356	MOL %	0.005
SOP	DELTA 13C C1	-46.6	per mil
SOP	DELTA 13C C2	-31	per mil
SOP	DELTA 13C C3	-27.4	per mil
SOP	DELTA 13C CO2	3.8	per mil
SOP	DELTA 13C iC4	-30.2	per mil
SOP	Delta 13C iC5	-27.3	per mil
SOP	DELTA 13C nC4	-26.5	per mil
SOP	Delta 13C nC5	-26	per mil
SOP	DELTA D C1	-245	per mil
SOP	ETHANE	12.604	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	0.684	MOL %	0.005
SOP	ISOPENTANE	0.231	MOL %	0.005
SOP	METHANE	73.276	MOL %	0.005
SOP	NITROGEN (N2)	3.19	MOL %	0.005
SOP	OXYGEN + ARGON	0.807	MOL %	0.005
SOP	PENTANE	0.204	MOL %	0.005
SOP	PROPANE	5.17	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.745	No Unit

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COGIS - Environmental Sample Site Information

Sample ID: 674089 Sample Date: 12/01/2025 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample ID: 674091 Sample Date: 12/01/2025 Matrix: GAS Collection Point: PRD Type: PRDG Lab: Dolan Integration Group