Control Number : R OCS-G No (s). : Area/Block (s) : MC 252 Rig Type : Semisubmersible Water Depth 4992

Transcription

1 Operator: BP Exploration & Production Inc. Type of Plan : I-EP Description : Wells A and B Shore Base(s) : Fourchon Distance from Shore : 48 Control Number : R OCS-G No (s). : Area/Block (s) : MC 252 Rig Type : Semisubmersible Water Depth 4992 I. Preliminary Determination by Project Supervisors CERA - With Analysis Project Supervisor 04/13/2009 II. Secondary Determination by Analysts Review Name Mitigation/reminders/advisories Reviewer EA Exception Criteria Archaeological Review Chemosynthetic Communities Biological Review NEPA (1) Determination Type Review Plan Coordinator Extension Project Manager Extension NEPA Coordinator Extension NEPA Due Date : 04/23/2009 Remarks : NEPA Final Action : CER Approved NEPA Final Date 04/15/2009 Approved By : Surface loc 6943 N 1036 E MC N 1326 E MC 252

2 Review : Archaeological Review Control No R Revised Exploration Plan Received 04/14/2009 Operator BP Exploration & Production Inc. Rig Type Semisubmersible Lease(s) OCS-G32306 Block Mississippi Canyon Area Completed : 04/15/2009 Reviewer Remark : No mitigation is required at this time. No cultural resources appear to exist in the area of the proposed well placement or anchro placements. Item Response Text 1 The information in the plan is sufficiently adequate, accurate, and comprehensive to perform an archaeological review. 2 Based on the information provided, there is not reason to believe that the plan is inconsistent with the provisions of applicable laws, regulations, LTLs, or NTLs regarding archaeological resources. 3 Based on the information provided or otherwise available, the activities in the plan are not likely to represent an exception, regarding archaeological resources, to the categorical exclusion (516 DM, Chapter 6, Appendix 10.4(10)). 4 Based on the information provided, there is not reason to believe that the activities proposed in the plan will probably cause unreasonable or serious harm or damage to any archaeological resources.

3 Review : Chemosynthetic Communities Biological Review Control No R Type Revised Exploration Plan Received 04/13/2009 Operator BP Exploration & Production Inc. Rig Type Semisubmersible Lease(s) OCS-G32306 Block Mississippi Canyon Area Completed : 04/14/2009 Reviewer Remark Operator is proposing to drill 2 wells in MC 252 ("Macondo" Project) Item Response Text 1 The information in the plan is sufficiently adequate, accurate, and comprehensive to perform a chemosynthetic communities biological review. 2 Based on the information provided, there is not reason to believe that the plan is inconsistent with the provisions of applicable laws, regulations, LTLs, or NTLs regarding chemosynthetic communities. 3 Based on the information provided or otherwise available, the activities in the plan are not likely to represent an exception, regarding chemosynthetic communities, to the categorical exclusion (516 DM, Chapter 6, Appendix 10.4(10». 4 Based on the information provided, there is not reason to believe that the activities proposed in the plan will probably cause unreasonable or serious harm or damage to any chemosynthetic communities. 5 The operator does not indicate in the plan that "as-placed" plats for anchors, anchor chains and wire ropes will be provided to the MMS for any of the wells addressed in this plan. No, the report submitted does not show the potential for chemosynthetic communities with the proposed and expanded anchor radius. 6 The operator will not be required to carry out the ROV survey as proposed in their plan. No, Grid 16 is complete

4 Review : FO-LE NEPA Coordination Review Control No R Type Revised Exploration Plan Received Operator BP Exploration & Production Inc. Rig Type Semisubmersible Lease(s) OCS-G32306 Block Mississippi Canyon Area Completed : 04/15/2009 Reviewer Remark Item Response Text 1 The information in the plan is sufficient to perform a NEPA Compliance review. 2 The activities proposed in the plan are categorically excluded. CERA - With Analysis 3 Furthermore, they do not represent an exception to the categorical exclusion, therefore, an environmental assessment was not performed. 4 If an EA is required, does the EA result in a FONSI? Not Applicable

5 PMT GIS Plan Review Program Analysis Report For R4937, Me 252, WELL n and R4937,MC 252, WE.LL A This report was generated on April]3, 2009 at 08:55 AM SITE: R4937, MC 252, WELL B (Review Map) The plan is a EPfor a well located 47.8 milesfrom shore. The rig type is Ss. CERJEA Review EA TRIGGER PARAMETER PROPOSED OR ESTABLISHED MARINE SANCTUARY: 1. Within the 4-mile zone ofthe Flower Garden Banks 2. Within the 3-mile Zone of Stetson Bank Within the Eastern Planning Area High H2S (>500 PPM) (As indicated in plan/application) Expect to encounter concentrations 500ppm or greater Right-of-Way Pipeline resulting in a new pipeline corridor to shore Structure Removal NORM Disposal Application New or Unusual Technology Activity involves Emergency Repair ofa Platform RELATIVELY UNTESTED DEEPWATER OR REMOTE AREAS: 1. Initial DOCDs for processing facilities in WD >400 meters or host facilities in any WD supporting subsea development in WD >400 meters (Not DOCDs for subsea completions) WITIDN OR NEAR AREAS OF HIGH BIOLOGICAL SENSITIVITY: 1. Surface Location is within designated 1,000 meter, 1 or 3 mile zone of a Topographic Feature (Bank) 2. Surface Location is within 1,000 meter buffer zone ofa topographic feature (bank) which does not have a designated 1,000 meter, 1 or 3 mile zone 3. Any bottom disturbance within a Pinnacle Trend Block 4. Any bottom disturbance within a known Chemo Block G&G Activity involving deep stratigraphic test holes or use ofsolid or liquid explosives YES NO

6 Air Quality Review The site DOES NOT: - expect to encounter H2S at concentrations greater than 500ppm - expect to encounter H2S at concentrations greater than 20 ppm - fall east of 87.5 degrees W longitude - include emission reduction measures or modified emission factors - calculate to more than 90% of calculated Complex Total (CT) Emission amount (in tons) RESULTS: An Air Quality Review IS NOT required. Archaeological Review Archaeological Survey with 300m line spacing is required due to the following: site, anchor length Chemosynthetic Review The following are in water depths greater than 400 meters: site, anchor length The following are not within block containing a known chemosynthetic community: site, anchor length The following are not within 1500 feet ofa known chemosynthetic community: site, anchor length Topographic Review The following are not in a topo zone: site, anchor length The following are not within 1000 feet ofa pinnacle: site, anchor length The following are not in a pinnacle trend stipulation block: site, anchor length The following are not in a topographic stipulation block: site, anchor length The following are not in a NMFS added block: site, anchor length Artificial Reef Review The following are not within 500 feet of an artificial reef site: site, anchor length The following are not within 500 feet ofa permit area: site, anchor length The following are not within 500 feet of a general permit area: site, anchor length Service Base Review The Service Base route is not in a national wildlife refuge. The Service Base route is in an ozone non-attainment zone. Ozone Non-Attainment Zone: LAFOURCHE Hazards Review The following are not in an Ordnance Disposal Area: site, anchor length The following are not within an H2S pipeline buffer: site, anchor length The following are not in H2S block(s): site, anchor length

7 Oil Spill Review The site is not located within the Flower Garden Banks National Marine Sanctuary notification zone. CZMReview CZM Criteria Site falls within the boundary ofthe following OCS Area(s) determined to affect the Gulf Coast State(s) The Shore Base HAS NOT changed. TXLAMS ALFLEPA n/a STATE CERTIFICATION IS REQUIRED STATE CERTIFICATION IS INCLUDED WITH PLAN nla nla CZM Results: CZM is not required for this revision to increase anchors. It is included in EP N Generate a CZM Info Review and pass to NEPA/CZM Unit. NEPA REVIEW DETERMINATION Based on the above information, I recommend the following action: Process as Signed: Concur: Date: 4/19/2009 Signature I Date

8 SITE: R4937, MC 252, WELL A (Review Map) The plan is a EPfor a well located 47.9 milesfrom shore. The rig type is SS. CERIEA Review EA TRIGGER PARAMETER PROPOSED OR ESTABLISHED MARINE SANCTUARY: 1. Within the 4-mile zone of the Flower Garden Banks 2. Within the 3-mile Zone of Stetson Bank Within the Eastern Planning Area High H2S (>500 PPM) (As indicated in plan/application) Expect to encounter concentrations 500ppm or greater Right-of-Way Pipeline resulting in a new pipeline corridor to shore Structure Removal NORM Disposal Application New or Unusual Technology Activity involves Emergency Repair of a Platform RELATIVELY UNTESTED DEEPWATER OR REMOTE AREAS: YES NO 1. Initial DOCDs for processing facilities in WD >400 meters or host facilities in any WD supporting subsea development in WD >400 meters (Not DOCDs for subseavi' completions) WITIDN OR NEAR AREAS OF HIGH BIOLOGICAL SENSITIVITY: 1. Surface Location is within designated 1,000 meter, 1 or 3 mile zone of a Topographic Feature (Bank) 2. Surface Location is within 1,000 meter buffer zone ofa topographic feature (bank) which does not have a designated 1,000 meter, 1 or 3 mile zone 3. Any bottom disturbance within a Pinnacle Trend Block 4. Any bottom disturbance within a known Chemo Block G&G Activity involving deep stratigraphic test holes or use of solid or liquid explosives Air Quality Review The site DOES NOT: - expect to encounter H2S at concentrations greater than 500ppm - expect to encounter H2S at concentrations greater than 20 ppm - fall east of 87.5 degrees W longitude - include emission reduction measures or modified emission factors - calculate to more than 90% of calculated Complex Total (CT) Emission amount (in tons) RESULTS: An Air Quality Review IS NOT required.

9 Archaeological Review Archaeological Survey with 300m line spacing is required due to the following: site, anchor length Chemosynthetic Review The following are in water depths greater than 400 meters: site, anchor length The following are not within block containing a known chemosynthetic community: site, anchor length The following are not within 1500 feet ofa known chemosynthetic community: site, anchor length Topographic Review The following are not in a topo zone: site, anchor length The following are not within 1000 feet of a pinnacle: site, anchor length The following are not in a pinnacle trend stipulation block: site, anchor length The following are not in a topographic stipulation block: site, anchor length The following are not in a NMFS added block: site, anchor length Artificial Reef Review The following are not within 500 feet of an artificial reef site: site, anchor length The following are not within 500 feet of a permit area: site, anchor length The following are not within 500 feet of a general permit area: site, anchor length Service Base Review The Service Base route is not in a national wildlife refuge. The Service Base route is in an ozone non-attainment zone. Ozone Non-Attainment Zone: LAFOURCHE Hazards Review The following are not in an Ordnance Disposal Area: site, anchor length The following are not within an H2S pipeline buffer: site, anchor length The following are not in H2S block(s): site, anchor length Oil Spill Review The site is not located within the Flower Garden Banks National Marine Sanctuary notification zone.

10 CZMReview CZM Criteria Site falls within the boundary of the following OCS Area(s) determined to affect the GulfCoast State(s) The Shore Base HAS NOT changed. TX i.lams AL FL.EPA,/ nla STATE CERTIFICATION IS REQUIRED STATE CERTIFICATION IS INCLUDED WITH PLAN nla n/a CZM Results: CZM is not required for this revision to increase anchors. It is included in EP N Generate a CZM Info Review and pass to NEPAlCZM Unit. NEPA REVIEW DETERMINATION Based on the above information, I recommend the following action: Signed: Concur: Date: 4/19/2009 Signature I Date

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