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Dubberly Gas Plant

Parent Companies:
La Grange Acquisitions, LLC
EPA Facility ID:
Other ID:
Facility DUNS:
Parent Company DUNS:


Sand Plant Cutoff Road
Dubberly, LA 71024
Lat / Long:
32.505, -93.186 (Get map)
GPS - Unspecified
Plant Entrance (General)
Horizonal accuracy:
1 m
Horizontal reference datum:
North American Datum of 1983
Source map scale:


La Grange Acquisitions, LLC
(210) 403-7300
800 E. Sonterra Blvd
Suite 400
San Antonio, TX 78258 -3941
Foreign Address:

Person responsible for RMP implementation:

James McClain
Operations Manager

Emergency contact:

Todd McKee
Operations Director
(214) 840-5842
24-hour phone:
(337) 375-4831
Ext or PIN:

Other contacts:

Facility (or company) email:
Facility phone:
Facility (or company) URL:


Local Emergency Planning Committee:
Webster Parish LEPC
Full-Time Equivalent Employees:
Covered by OSHA PSM:
EPCRA section 302:
CAA Title Air Operating Permit:
CAA Permit ID#:
OSHA Star/Merit Ranking
Last Safety Inspection Date:
Oct. 13, 2016
Inspecting Agency:
State environmental agency
Using Predictive Filing:


Dubberly Gas Plant
CBI claimed:
Program Level:
Natural Gas Liquid Extraction (211112)
Chemical name
Quantity (lbs.)
Flammable Mixture
Public OCA Chemical

RMP Preparer:

Rodrick Nunez
8100 Big Lake Rd
Lake Charles, LA 70605
Foreign Address:

(337) 475-4392

Latest RMP Submission:

April 17, 2015
Regulated substance present above TQ in new (or previously not covered) process (40 CFR 68.190(b)(4))


Effective Date:
Other Reason:

2. Toxics: Worst-case


3. Toxics: Alternative release


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 Dubberly Gas Plant)
CBI claimed:
Model used:
EPA's RMP*Comp(TM)
Passive mitigation
  • 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 Dubberly Gas Plant)
CBI claimed:
Model used:
EPA's RMP*Comp(TM)
Passive mitigation
  • None
not considered:
  • Dikes
  • Fire wall
  • Blast walls
  • Enclosures
Active mitigation
  • 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

Dubberly Gas Plant, Natural Gas Liquid Extraction (211112)
Prevention Program ID:
Safety Review Date
Feb. 9, 2015, since latest RMP submission
PHA Update Date
July 28, 2014, since latest RMP submission
PHA Techniques
Hazards Identified
  • Fire
  • Explosion
  • Runaway reaction
  • Overpressurization
  • Equipment failure
  • Cooling loss
Process Controls
  • Vents
  • Relief Valves
  • Check Valves
  • Scrubbers
  • Flares
  • Manual Shutoffs
  • Automatic Shutoffs
  • Interlocks
  • Alarms
  • Backup Pump
  • Grounding Equipment
  • Excess Flow Device
Mitigation Systems
  • None
Monitoring Systems
  • Process Area
Changes since PHA
  • Increased Inventory
  • Process Parameters
  • Process Controls
Training Type
  • Classrom
  • On the Job
Competency Testing
  • Written Test
  • Oral Test
  • Demonstration
Procedure Review Date
July 29, 2016, since latest RMP submission
Training Review Date
Feb. 27, 2015, since latest RMP submission
Maintenance Review Date
Feb. 9, 2015, since latest RMP submission
Maintenance Inspection Date
Feb. 23, 2015, since latest RMP submission
Equipment Tested
Management of Change Most Recent Date
Management of Change Review Date
Feb. 9, 2015
Pre-startup Review Date
Compliance Audit Date
Feb. 16, 2015
Compliance Audit Change Completion Date
Dec. 31, 2015
Incident Investigation Date
Jan. 24, 2015
Incident Invest. Change Completion Date
July 31, 2015
Participation Plan Review Date
Feb. 9, 2015
Hot Work Review Date
Feb. 9, 2015
Contractor Safety Review Date
Feb. 9, 2015, since latest RMP submission
Contractor Safety Eval. Date
None, since latest RMP submission

8. Prevention Program level 2

No Prevention Program level 2

9. Emergency response

Facility In Community Plan:
Facility Own Response Plan:
Specific Facility Response Plan:
Inform. Procedures in Response Plan:
Emergency Care in Response Plan:
Plan Review Date:
Response Training Date:
Dec. 5, 2014
Local Response Agency:
Local Response Agency Phone:
(318) 377-8247
Subject To - OSHA EAP:
Subject To - CWA:
Subject To - RCRA:
Subject To - OPA:
Subject To - State EPCRA:
Subject To - Other:

Executive Summary



Energy Transfer 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. Energy Transfer's policy is to implement reasonable controls to prevent foreseeable releases of substances.


Energy Transfer operates the Dubberly Gas Plant located in Webster Parish, Louisiana. This facility is a natural gas processing plant which uses mechanical refrigeration to remove liquids from the gas stream. Glycol dehydration is used to remove water from the stream. Mixed liquids from the refrigeration plant are stored in atmospheric tanks prior to being shipped off-site in tanker trucks. As evidenced in the ensuing text and based on criteria outlined in the Accidental Release Prevention (ARP) Program, the Dubberly Gas Plant is a Program 3 process. Inlet gas is compressed from 600 psig to 950 psig using 3 inlet compressors. The gas will be treated by an amine unit to remove CO2 and then dehydrated using a combination of a TEG and molecular sieve units. It will then be turbo expanded to reduce the pressure from 950 psig to 285 psig. This expansion will allow non-methane hydrocarbons to condense out. The liquids will exit the plant via pipeline. The residue methane gas will be compressed to 1000 psig utilizing (3) residue compressors and shipped via pipeline.


This facility has not had any accidental releases.


The Dubberly Gas Plant has coordinated its emergency response activities with the local emergency planning and response agencies as required in 40 CFR 68.12(b)(3).


The following is a summary of the accident prevention program in place at the Dubberly Plant. Because plant processes are subject to EPA?s RMP regulations and to OSHA's PSM standards, this summary addresses each of the OSHA PSM elements and describes the management system in place to implement the accident prevention program.

Employee Participation

Energy Transfer actively encourage all levels of employees and contract employees to participate in creating a safe work environment. This participation begins with well-established mechanisms of communication with all employees regarding covered process information. Employees are involved in maintaining PSM rule compliance based on their knowledge, skill, job responsibilities, and experience.

Process Safety Information

The Dubberly 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 for key process parameter limits and equipment design basis/configuration information. Specific departments within the plant are assigned responsibility for maintaining up-to-date process safety information.

Chemical-specific information, including exposure hazards and emergency response/exposure treatment considerations, is provided in the material safety data sheets (MSDSs). This information is supplemented, when required, by documents that specifically address known corrosion concerns and any known hazards associated with the inadvertent mixing of chemicals. 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 plant also maintains documentation that provides information about the design and construction of process equipment. Equipment information includes constructi
on materials, design pressure, and temperature and electrical ratings. This information provides a basis for establishing inspection and identify hazards and ensure that adequate controls are in place to manage these hazards.

The Dubberly Plant primarily uses the HAZOP method to perform these evaluations. This technique provides a highly structured approach where process parameters such as flow and temperature are examined for deviations from their intended design. Deviation effects are considered in order to determine resulting potential hazards while preliminary recommendations for improvement are proposed.

The PHA team findings are promptly and systematically addressed. Energy Transfer 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 also provides proof of communication 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 analysis results. These periodic reviews will be conducted at least every five years by the PHA team.

Operating Procedures

The Dubberly 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) normal shutdown, and (6) 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 are revised as necessary through the management of chang
e process.


To complement the written process operation procedures, Energy Transfer 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, emergency shutdown operations, and safe work practices. Operators demonstrating adequate knowledge to safely perform duties and tasks are allowed to work independently.

Hot Work Permit

Energy Transfer issues a hot work permit for all hot work operations conducted on or near a covered process. Energy Transfer provides Hot Work Permit training to all plant employees. Copies of issued work permits are maintained in Operations and Maintenance for a period of 1 year following completion of work.


Energy Transfer periodically uses contractors to perform maintenance or repair, turnaround, major renovations, or specialty work on or adjacent to a covered process. Because some contractors work on or near process equipment, the plant has procedures in place to ensure that contractors (1) are trained in the work practices necessary to safely perform his/her job, (2) follow the safety rules of the location including the safe work practices, (3) advise the plant of any unique hazards presented by the contractor, and (4) notify the facility of all illnesses and injuries that occur in the process areas.

Pre-Startup Safety Reviews (PSSRs)

Energy Transfer conducts a PSSR for any facility modification that requires a change in the process safety information. The purpose of the PSSR is to ensure that safety features, procedures, personnel, and equipment are appropriately prepared for startup prior to placing the equipment into service. This review provides an additional check to make sure that construction and equipment are in accordance with design specification, that adequate safety, operating, maintenance, and emergency procedures are in place, and t
hat training of each employee involved in operating the process or equipment has been completed. A standard checklist is used to document compliance.

Mechanical Integrity

Energy Transfer has well-established programs, procedures, and practices that are required to ensure that equipment used to process, store, or handle lightly hazardous chemicals and/or flammable gas or liquid is designed, constructed, installed, and maintained to minimize the risk of a release. Equipment examples include vessels, storage tanks, piping systems, and relief and vent systems with associated emergency shutdown systems and controls (i.e., monitoring devices, sensors, alarms, and interlocks).

Maintenance personnel receive training on (1) an overview of the process, (2) a review of the process hazards, and (3) the procedures applicable to the employee's job tasks to ensure that the employees can perform the job tasks in a safe and satisfactory manner. Process equipment inspection and testing follows recognized and generally accepted good engineering practices. Equipment deficiencies that are outside of acceptable limits are corrected before further use or in a safe and timely manner when necessary means are taken to ensure safe operation.

Management of Change

Energy Transfer has a comprehensive system to manage and document changes to all covered processes. A systematic approach is followed to control and manage facility changes in order to minimize the possibility that such changes will have an adverse impact on personnel safety, equipment, or the environment. Employees involved in process operations and maintenance and contract employees whose job tasks might be affected by process changes are informed of and trained in the change prior to process start-up.

Incident Investigation

Energy Transfer promptly investigates 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 led 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

Energy Transfer retains a written emergency response plan which includes the designated actions the company and all personnel will take to ensure personal safety from fire and other emergencies. The plan outlines actions that company technicians and contract employees are to take when there is an unwanted release of highly hazardous chemicals. The intent of this plan is to facilitate the prompt evacuation of employees when necessary and to account for all personnel.

Compliance Audits

To help ensure that the accident prevention program is properly functioning, Energy Transfer periodically conducts an audit to determine whether the procedures and practices required by the accident prevention program are being implemented. 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.


Energy Transfer is committed to operating the Dubberly Plant in a safe manner for workers, the public, and the environment. Energy Transfer personnel have an opportunity to make suggestions that could improve the safety of this
facility during monthly regional safety meetings. Energy Transfer will also conduct compliance audits and hazard reviews as required and make improvements to safety based on findings of the audits and reviews.


La Grange Acquisitions LLC became the owner/operator of the Dubberly Gas Plant on May 01, 2015. The previous owner/operators listed in descending order are as follows:

1. Regency Gas Partners