Larimer County Colorado O&G Spill of Concern - Groundwater Reportedly Impacted

Date Rec'd:	7/12/2010	Report taken by:	BOB CHESSON
DocNum:	2607771	API number:	05-069 -06195	Facility ID:	217008

Operator Information

Operator:	PETROLEUM DEVELOPMENT CORPORATION	Oper. No.	69175
Address:	1775 SHERMAN STREET - STE 3000 ATTN: SCOTT REASON DENVER , CO 80203
Phone:	(303 )860-5800	Fax:	(303 )860-5838
Operator Contact:	RANDALL FERGUSON

Description of Spill:

Date of Incident:	5/17/2010
Type of Facility:	WELL
Well Name/No.	CAMPION 2	Fac. Name/No.
County Name:	LARIMER
qtrqtr: NENE section: 2 township: 4N range: 69W meridian: 6

Volumes spilled and recovered (bbls)
Oil spilled: 0	Recvrd: 0
Water spilled:	Recvrd:
Other spilled: 0	Recved: 0
GW Impact? Y Surface water impact? N Contained within berm? N
Area and vertical extent of spill: - X -
Current land use: OIL AND GAS PRODUCTION FACILITY
Weather conditions: MID 60S
Soil/Geology description NUNN CLAY LOAM, 1-3% SLOPES
Distance in feet to nearest surface water: 200
Depth to shallowest GW: 6
Wetlands:	Buildings: 160
Livestock:	Water Wells: 1070
Cause of spill:
HISTORIC
Immediate Response:
THE PRODUCED WATER VAULT AND PETROLEUM HYDROCARBON IMPACTED SOIL ABOVE COGCC TABLE 910-1 CONCENTRATION LEVELS WERE EXCAVATED AND REMOVED. ~90 CU YDS OF IMPACTED SOIL ABOVE THE COGCC ALLOWABLE LEVELS WAS EXCAVATED AND TRANSPORTED TO THE WASTE MANAGEMENT LANDFILL IN AULT, COLORADO FOR DISPOSAL.
Emergency Pits:
NA
How extent determined:
EXCAVATION AND SAMPLING ACTIVITIES. ANALYTICAL RESULTS INDICATING GROUNDWATER WAS IMPACTED WERE RECEIVED ON 5/26/2010. SEE ATTACHED FIGURE FOR LAB ANALYTICAL RESULTS.
Further Remediation
A VACUUMM TRUCK IS SCHEDULED TO PERIODICALLY RECOVER IMPACTED GROUNDWATER FROM THE OPEN EXCAVATION. PDC WILL COLLECT A SUBSEQUENT WATER SAMPLE TO DETERMINE STATUS. IF IMPACTS REMAIN, ADDITIONAL ASSESSMENT WILL BE CONDUCTED AND DETAILED IN A FORM 27 SUBMITTAL. IF THE WATER IS COMPLIANT WITH THE APPLICABLE COGCC STANDARDS A FORM 27 WILL BE SUBMITTED WITH A REQUEST FOR NO FURTHER ACTION.
Prevent Problem:
WELL HAS BEEN P&A AND TANK BATTERY DE-COMMISSIONED.
Detailed Description:
DURING TANK BATTERY DECONSTRUCTION ACTIVITIES AT THE CAMPION #2 PRODUCTION FACILITY, A PRODUCED WAER VAULT WAS FOUND TO HAVE RELEASED AN UNKNOWN QUANTITY OF PRODUCED WATER TO THE SUBSURFACE.

Other Notifications
Date	Agency	Contact	Response
5/26/2010	COGCC	ROBERT CHESSON	VERBAL NOTIFICATION

Field Visit/Follow Up
Name	Phone	Date
No Field Visit data found.

Final Resolution
Date		Case Closed?		Letter Sent?		COGCC person
9/9/2010		Y		N
PLEASE REFER TO REMEDIATION #5194 FOR MORE INFORMATION.

REMEDIATION INFORMATION

Date Submitted:	9/9/2010
Date Rec'd:	9/9/2010	Assigned by:	BOB CHESSON
DocNum:	2521225	API number:	05-069-06195
Document Type:	FORM 27	Project Number:	5194

Operator Information:

Operator:	PETROLEUM DEVELOPMENT CORPORATION
Oper. No.	69175
Address:	1775 SHERMAN STREET - STE 3000 DENVER , CO 80203
Type of Facility:	WELL
Fac. Name	CAMPION
County Name:	LARIMER
Operator contact:	RANDALL FERGUSON
qtrqtr: NENE section: 2 township: 4N range: 69W meridian: 6

Remediation Details:

Impacted Media
Media		Impacted		Extent		How Determined?
GROUNDWATER		Y		SEE ATTACHED TABLE & LAB REPORT		LAB ANALYSIS
SOILS		Y		SEE ATTACHED TABLE & LAB REPORT		FIELD SCREENING/LAB ANALYSIS

Reason for Report: SPILL Cause of Condition: SITE/FACILITY CLOSURE Potential Receptors: HOME SUPPLY DITCH 200' W, HOME 150' S, WATER WELL 1,070' SW, DEPTH TO GRNDWTR 6' BGS.

INITIAL ACTION:	FORM 19 WAS SUBMITTED ON 7/12/10 (SPILL #2607771).
SOURCE REMOVED:	SOIL AND GROUNDWATER IMPACTS WERE DISCOVERED DURING TANK BATTERY REMOVAL ACTIVITIES. ONCE THE TANK BATTERY EQUIPMENT WAS REMOVED, IMPACTED SOIL WAS EXCAVATED. SOIL SAMPLES WERE COLLECTED FROM THE SIDEWALLS OF THE EXCAVATION AND SUBMITTED FOR ANALYSIS OF BTEX AND TPH-GRO BY EPA METHOD 8260B AND TPH-DRO BY EPA MODIFIED METHOD 8015. LAB RESULTS INDICATED BTEX AND TPH (C6-C28) CONCENTRATIONS ALONG THE EXCAVATION PERIMETER ARE IN COMPLIANCE WITH COGCC TABLE 910-1 CONCENTRATION LEVELS. GROUNDWATER SAMPLES WERE COLLECTED FROM THE EXCAVATION ON 5/18/2010 AND 7/2/2010 AND WERE SUBMITTED FOR ANALYSIS OF BTEX BY EPA METHOD 8260B. LAB RESULTS FOR THE GROUNDWATER SAMPLE COLLECTED ON 5/18/10 INDICATE THE BENZENE CONCENTRATION SLIGHTLY EXCEEDED THE CDPHE WATER QUALITY CONTROL COMMISSION REGULATION (REG. 41) STANDARD, AS A RESULT, ~250 BBLS OF IMPACTED GROUNDWATER WAS REMOVED BY A VACUUM TRUCK AND TRANSPORTED TO A DISPOSAL FACILITY. LAB RESULTS FOR THE GROUNDWATER SAMPLE COLLECTED ON 7/2/10 INDICATED BTEX CONCENTRATIONS WERE IN COMPLIANCE WITH REG. 41 STANDARDS. A TOPOGRAPHIC SITE LOCATION MAP AND SITE MAP ARE PROVIDED AS FIGURES 1 AND 2. SOIL AND GROUNDWATER ANALYTICAL RESULTS ARE SUMMARIZED IN TABLES 1 AND 2.
HOW REMEDIATE:	~90 CU YDS OF IMPACTED SOIL EXCEEDING COGCC TABLE 910-1 CONCENTRATION LEVELS WAS TRANSPORTED TO THE WASTE MANAGEMENT LANDFILL IN AULT, COLORADO FOR DISPOSAL. ~250 BBLS OF POTENTIALLY IMPACTED GROUNDWATER WAS REMOVED FROM THE OPEN EXCAVATION AND TRANSPORTED TO A DISPOSAL FACILITY.
MONITORING PLAN:	THE LAB RESULTS INDICATE THE FORMER GROUNDWATER IMPACTS HAVE BEEN REMEDIATED AND ARE IN COMPLIANCE WITH REG. 41 STANDARDS.
5-RECLAMATION PLAN:	THE SITE WAS RESTORED TO ITS PRE-RELEASE GRADE. PDC'S PRODUCTION FACILITY REMAINS AT THE SITE.
Conditions of Approval:

Correspondence Log:

Final Resolution
Date		Case Closed?		Letter Sent?		COGCC person
9/9/2010		Y				BOB CHESSON

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