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Elm Grove Gas Plant

Parent Companies:
EPA Facility ID:
100000165714
Other ID:
Facility DUNS:
835687930

Location:

Address:
Old Highway 71
Elm Grove, LA 71051
County:
BOSSIER
Lat / Long:
32.361, -93.564 (Get map)
Method:
Interpolation - Map
Description:
Center of Facility
Horizonal accuracy:
12.2 m
Horizontal reference datum:
World Geodetic System of 1984
Source map scale:
24000

Owner/Operator:

Name:
Enable Midstream Partners, LP
Phone:
(903) 926-0316
Address:
525 Milam Street
Shreveport, LA 71101
Foreign Address:

Person responsible for RMP implementation:

Name:
Ken Carpenter
Title:
Regional Manager
Email:

Emergency contact:

Name:
Enable Midstream Gas Control
Title:
NA
Phone:
(318) 429-2782
24-hour phone:
(318) 429-2782
Ext or PIN:

Other contacts:

Facility (or company) email:
Facility phone:
(903) 926-0316
Facility (or company) URL:

Safety:

Local Emergency Planning Committee:
Bossier-Caddo Parish LEPC
Full-Time Equivalent Employees:
0
Covered by OSHA PSM:
No
EPCRA section 302:
No
CAA Title Air Operating Permit:
No
CAA Permit ID#:
OSHA Star/Merit Ranking
No
Last Safety Inspection Date:
Feb. 17, 2012
Inspecting Agency:
EPA
Using Predictive Filing:
No

Processes:

Unspecified process
RMP ID:
1000058013
CBI claimed:
No
Program Level:
2
NAICS:
Natural Gas Liquid Extraction (211112)
Chemical name
CAS#
Quantity (lbs.)
CBI
Flammable Mixture
00-11-11
76,291
No
Public OCA Chemical
0
No

RMP Preparer:

Name:
C-K Associates, LLC
Address:
616 FM 1960 West
Suite 575
Houston, TX 77090
Foreign Address:

Phone:
(281) 397-9016

Latest RMP Submission:

Date:
Oct. 6, 2014
Type:
Resubmission
Reason:
5-year update (40 CFR 68.190(b)(1))
Registered:
No
RMP ID:
1000046539

Deregistration:

Date:
Effective Date:
Reason:
Source reduced inventory of all regulated substances below TQs
Other Reason:

2. Toxics: Worst-case

None

3. Toxics: Alternative release

None

4. Flammables: Worst-case

Some Risk Management Plan information is not provided in the available RMP data. You need to make an appointment at an EPA Reading Room In order to get access to details from the Off-Site Consequence Analysis (OCA) such as:

Instructions on how to make an EPA appointment can be found here.

Public OCA Chemical (in Unspecified process)
CBI claimed:
No
Model used:
EPA's OCA Guidance Reference Tables or Equations
Passive mitigation
considered:
  • None
not considered:
  • Blast walls

5. Flammables: Alternative release

Some Risk Management Plan information is not provided in the available RMP data. You need to make an appointment at an EPA Reading Room In order to get access to details from the Off-Site Consequence Analysis (OCA) such as:

Instructions on how to make an EPA appointment can be found here.

Public OCA Chemical (in Unspecified process)
CBI claimed:
No
Model used:
EPA's OCA Guidance Reference Tables or Equations
Passive mitigation
considered:
  • None
not considered:
  • Dikes
  • Fire wall
  • Blast walls
  • Enclosures
Active mitigation
considered:
  • None
not considered:
  • Sprinkler systems
  • Deluge systems
  • Water curtain
  • Excess flow valve

6. Five-year accident history

No Registered Accidents

7. Prevention: Program level 3

No Prevention Program level 3

8. Prevention Program level 2

, Natural Gas Liquid Extraction (211112)
Prevention Program ID:
1000036989
Safety Review Date
Jan. 7, 2013, since latest RMP submission
PHA Update Date
, since latest RMP submission
Safety Regulations
  • None
Hazards Identified
  • Fire
  • Explosion
  • Overpressurization
  • Overfilling
  • Equipment failure
Process Controls
  • Vents
  • Relief Valves
  • Check Valves
  • Grounding Equipment
Mitigation Systems
  • Dikes
Monitoring Systems
  • None
Changes since PHA
  • None
Training Type
  • Classroom
  • On the Job
Competency Testing
  • Written Test
  • Observation
Procedure Review Date
Nov. 20, 2007, since latest RMP submission
Training Review Date
May 6, 2014, since latest RMP submission
Maintenance Review Date
Nov. 20, 2007, since latest RMP submission
Maintenance Inspection Date
Sept. 7, 2012, since latest RMP submission
Equipment Tested
Yes
Management of Change Most Recent Date
Management of Change Review Date
Pre-startup Review Date
Compliance Audit Date
Oct. 30, 2013
Compliance Audit Change Completion Date
Nov. 15, 2013
Incident Investigation Date
Feb. 9, 2009
Incident Invest. Change Completion Date
June 18, 2009
Participation Plan Review Date
Hot Work Review Date
Contractor Safety Review Date
, since latest RMP submission
Contractor Safety Eval. Date
, since latest RMP submission

9. Emergency response

Facility In Community Plan:
No
Facility Own Response Plan:
No
Specific Facility Response Plan:
No
Inform. Procedures in Response Plan:
No
Emergency Care in Response Plan:
No
Plan Review Date:
Response Training Date:
None
Local Response Agency:
Local Response Agency Phone:
(318) 425-5351
Subject To - OSHA EAP:
No
Subject To - OSHA HAZWOPER:
No
Subject To - CWA:
No
Subject To - RCRA:
No
Subject To - OPA:
No
Subject To - State EPCRA:
Yes
Subject To - Other:

Executive Summary

ACCIDENTAL RELEASE PREVENTION AND RESPONSE POLICIES



The Elm Grove Gas Plant has a long-standing commitment to worker and public safety. This commitment is demonstrated by the resources invested in accident prevention, such as training personnel and considering safety in the design, installation, operation, and maintenance of the facility's processes. The Enable Midstream Partners, LP (Enable Midstream) policy is to implement reasonable controls to prevent foreseeable releases of substances.



DESCRIPTION OF THE STATIONARY SOURCE AND REGULATED SUBSTANCES



Enable Midstream operates the Elm Grove Gas Plant located in Bossier Parish, Louisiana. The Elm Grove Plant is a natural gas processing plant that produces natural gas liquids (NGL), a mixture of methane, ethane, propane, butanes, pentanes and C6+ compounds, using the Joule-Thompson separartion technique. NGL and condensate are transported from the site via tanker trucks. As evidenced in the ensuing text and based on criteria outlined in the Accidental Release Prevention Program (ARP), the Elm Grove Gas Plant is a Program 2 process.



The Elm Grove Gas Plant was evaluated to determine if any regulated flammable or toxic substances were present in the process and if they exceeded the threshold quantity. All equipment and vessels are considered to be connected and/or co-located; consequently, for the purposes of the ARP Program, all equipment and vessels are part of a single process. The identification of even a single vessel exceeding threshold quantities of a regulated flammable or toxic substance would subject a process to threshold determination for offsite consequence analysis.



FIVE YEAR ACCIDENT HISTORY



The Elm Grove Gas Plant has not had any accidental releases during the past five years that meet the criteria for an accidental release as discussed in 40 CFR 68.42.



LOCAL EMERGENCY RESPONSE COORDINATION



The Elm Grove Gas Plant has coordinated its emergency response activities with t
he local emergency planning and response agencies as required in 40 CFR 68.90(b)(2).



GENERAL ACCIDENTAL RELEASE PREVENTION PROGRAM



The following is a summary of the accident prevention program in place at the Elm Grove Gas Plant. The Elm Grove Gas Plant processes are subject to EPA's RMP regulations but not OSHA's PSM standards because the plant is unmanned. This summary describes the management system in place to implement the accident prevention program implemented by CenterPoint.



Process Safety Information



The Elm Grove Gas Plant maintains written information intended to provide a foundation for identifying and understanding the process hazards. This information addresses chemical properties, inventories, and associated hazards, as well as key process parameter limits and equipment design basis/configuration information.



Chemical-specific information, including exposure hazards and emergency response/exposure treatment considerations, is provided in the material safety data sheets (MSDSs). In addition, the plant has documented safety-related limits for specific process parameters and ensures limit maintenance by using highly trained personnel, process controls, and monitoring and protective instrument systems.



The company also maintains documentation that provides information about the design and construction of process equipment. Equipment information includes construction materials, design pressure, and temperature and electrical ratings. CenterPoint utilizes standard operating manuals for pumps, controls and relief valves, as well as ANSI, ASME and UL Ratings. This information also provides a basis for establishing inspection and maintenance activities, as well as for evaluating proposed process and facility changes to ensure that safety features in the process are not compromised.



Hazard Review



The Elm Grove Gas Plant has a comprehensive program to help ensure that hazards associated with the various processes are identified an
d controlled. Within this program, each process is systematically examined to identify hazards and ensure that adequate controls are in place to manage these hazards.



The Hazard Review findings are promptly and systematically addressed. The Elm Grove Gas Plant assures that the recommendations are documented and resolved in a timely manner. This documentation includes the actions to be taken and a written schedule of completion dates. The plant communicates all hazard review findings with operating, maintenance, and other employees whose work assignments are in the process and who may be affected by the recommendations.



To help ensure that the process controls and/or process hazards do not eventually deviate from the original design safety features, the plant periodically updates and revalidates the hazard review results. These periodic reviews are conducted at least every five years by the Hazard Review team.



Operating Procedures



The Elm Grove Gas Plant maintains written procedures that address various modes of process operations, such as (1) initial startup, (2) normal operations, (3) temporary operations, (4) emergency shutdown, (5) emergency operations, (6) normal shutdown, and (7) startup following a turnaround or after an emergency shutdown. These procedures can be used as a reference by experienced operators and provide a consistent training basis for new operators. Operating procedures are periodically reviewed and certified as current. When a process change occurs, operating procedures will be revised as necessary through the management of change process.



Training



To complement the written process operation procedures, the Elm Grove Gas Plant has implemented a comprehensive training program for all employees. New employees receive job specific basic training in plant operations. Employee training includes emphasis on safety and health hazards and safe work practices. Operators demonstrating adequate knowledge to safely perform du
ties and tasks are allowed to work independently.



Incident Investigation



The Elm Grove Gas Plant has a plan in place to promptly investigate all incidents that resulted in, or reasonably could have resulted in, a fire/explosion, toxic gas release, major property damage, environmental loss, or personal injury. An incident investigation is initiated as promptly as possible to thoroughly investigate and analyze the incident. This investigation is lead by an incident investigation team consisting of those with appropriate knowledge and experience in the process. The findings and recommendations made by the incident investigation team are promptly addressed and resolved in a timely manner. The final resolution of each finding or recommendation is documented, and the investigation results are reviewed with all employees (including contractors) who could be affected by the findings.



Emergency Planning and Response



The Elm Grove Gas Plant is an unmanned site. All emergency response actions are coordinated with the Caddo-Bossier Parish LEPC.



Compliance Audits



To help ensure that the accident prevention program is properly functioning, the Elm Grove Gas Plant periodically conducts an audit to determine whether the procedures and practices required by the accident prevention program are being implemented. Compliance audits are conducted at least every 3 years. The audit team includes those knowledgeable in the process, operations personnel, and at least one person trained in audit techniques and practices. The audit team develops findings and corrective actions are tracked until they are complete. The final resolution of each finding is documented, and the two most recent audit reports are retained.