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Gheens Refrigeration Facility

Parent Companies:
Square Mile Energy, LLC
EPA Facility ID:
100000225534
Other ID:
Facility DUNS:
0
Parent Company DUNS:
0

Location:

Address:
1956 Joe Brown Rd.
Lockport, LA 70374
County:
LAFOURCHE
Lat / Long:
29.633, -90.456 (Get map)
Method:
GPS - Unspecified
Description:
Center of Facility
Horizonal accuracy:
10 m
Horizontal reference datum:
North American Datum of 1983
Source map scale:

Owner/Operator:

Name:
Square Mile Energy, LLC
Phone:
(713) 266-3685
Address:
5847 San Felipe
Suite 2900
Houston, TX 77057
Foreign Address:

Person responsible for RMP implementation:

Name:
Chris McIntosh
Title:
Facility and Construction Manager

Emergency contact:

Name:
Doug Douglas
Title:
Superintendent
Phone:
(601) 522-8386
24-hour phone:
(866) 639-6618
Ext or PIN:

Other contacts:

Facility (or company) email:
Facility phone:
(713) 266-3685
Facility (or company) URL:

Safety:

Local Emergency Planning Committee:
Lafourche 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:
Inspecting Agency:
Never had one
Using Predictive Filing:
No

Processes:

Refrigeration Plant
RMP ID:
1000073408
CBI claimed:
No
Program Level:
1
NAICS:
Natural Gas Liquid Extraction (211112)
Chemical name
CAS#
Quantity (lbs.)
CBI
Flammable Mixture
00-11-11
91,710
No
Public OCA Chemical
0
No

RMP Preparer:

Name:
Address:

,
Foreign Address:

Phone:

Latest RMP Submission:

Date:
July 11, 2016
Type:
Resubmission
Reason:
Voluntary update (not described by any of the above reasons)
Registered:
Yes
RMP ID:
1000058819

Deregistration:

Date:
Effective Date:
Reason:
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 Refrigeration Plant)
CBI claimed:
No
Model used:
EPA's RMP*Comp(TM)
Passive mitigation
considered:
  • None
not considered:
  • Blast walls

5. Flammables: Alternative release

None

6. Five-year accident history

No Registered Accidents

7. Prevention: Program level 3

No Prevention Program level 3

8. Prevention Program level 2

No Prevention Program level 2

9. Emergency response

Facility In Community Plan:
Yes
Facility Own Response Plan:
No
Specific Facility Response Plan:
Yes
Inform. Procedures in Response Plan:
No
Emergency Care in Response Plan:
Yes
Plan Review Date:
Response Training Date:
May 17, 2013
Local Response Agency:
Local Response Agency Phone:
(985) 532-3876
Subject To - OSHA EAP:
No
Subject To - OSHA HAZWOPER:
Yes
Subject To - CWA:
No
Subject To - RCRA:
No
Subject To - OPA:
No
Subject To - State EPCRA:
Yes
Subject To - Other:

Executive Summary

GHEENS REFRIGERATION FACILITY RISK MANAGEMENT PLAN: EXECUTIVE SUMMARY



DESCRIPTION OF THE STATIONARY SOURCE AND REGULATED SUBSTANCES

Square Mile Energy, LLC (Installed and previously operated by Samson Exploration, LLC), operates the Gheens Refrigeration Facility located at, 1956 Joe Brown Road, Lockport, LA 70374 (lat/long N 29.632574 W 90.456030) in LaFourche Parish, Louisiana.



The Gheens sales facility takes a dehydrated stream of natural gas from the main Gheens facility (flow based on DM Minerals #3 well allocation meter) and conditions the gas stream to make it suitable for sales by reducing the C5+ components to below the Gulf South specification of 0.2 gpm. After bulk liquid separation, moisture content is further reduced by means of glycol dehydration. Following glycol dehydration the gas stream is sent to a refrigeration skid to recover Natural Gas Liquids (NGLs). Flowrate above the capacity of the refrigeration skid is bypassed and later mixed with treated gas. Any liquids that are removed from the natural gas stream through a cold separator go to the NGL storage (bullet) tank and are later transported offsite via tanker trucks. Gas leaving the refrigeration skid is metered and goes to pipeline for sales. Liquid flash from the bullet tank is taken to flare.



The Gheens Refrigeration Facility was evaluated to determine if any regulated flammable or toxic substances were present in the process and if they exceeded 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 can be considered as part of a single process. The identification of even a single vessel exceeding threshold quantity of a regulated flammable or toxic substance would subject a process to threshold determination for offsite consequence analysis.



Samson (original operator)identified one flammable liquid mixture and zero regulated toxic substances. The ident
ification of this exceedance indicated that the Gheens Refrigeration Facility is a covered process with a regulated substance subject to offsite consequence analysis.



This facility processes Natural Gas Liquids (NGLs) which are stored in one (1) 18,000 gallon pressurized bullet tank (91,710 lbs). The facility is subject to RMP requirements since it is a natural gas processing plant producing NGLs and contains threshold quantities of regulated substances as indicated in the following table:



Natural Gas

Regulated Quantity Percent

Substance (lbs) (>1%)

Ethane 10,000 4.177

Propane 10,000 10.234

i-Butane 10,000 8.8525

n-Butane 10,000 13.291

i-Pentane 10,000 11.419

n-Pentane 10,000 8.925

Methane 10,000 2.6726



Onsite lbs = (total gallons) x (lbs/gallons)

NGL lbs = 18,000 x 5.095 = 91,710 lbs (Note: there is only one vessel onsite so the quantity refers to the quantity in the single largest vessel).



Since this facility is a Program 1, a documented prevention program is NOT required.



FIVE YEAR ACCIDENT HISTORY



The facility has not experienced any accidental releases that meet the criteria for an accidental release as discussed in 40 CFR 68.42 within the past five years.



EMERGENCY PLANNING AND RESPONSE



Since this facility is a Program 1, emergency response activities have been coordinated with the Lockport Volunteer fire department as required in 40 CFR 68.12(b)(3). Further, emergency response procedures have been developed and are contained in this RMP and these procedures will be implemented in the event of an accidental release or the threat of such a release. Copies of this facility Emergency Response Plan are kept with operating personnel at the corporate office. Employees will respond to accidental releases of regulated substances and, if safe to do so, attempt to stop the source of the leak.