St. Gabriel Dehydration & NGL Facility No. 1
St. Gabriel, LA 70776
Houston, TX 77002
Person responsible for RMP implementation:
Broussard, LA 70518
Latest RMP Submission:
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:
- Names of the chemicals in the Off-Site Consequence Analysis
- Amount of chemical released
- Rate of chemical release
- Radius of affected area
- Vulnerable areas affected
- Count of affected population
- Maps or other optionally provided supplementary material
Instructions on how to make an EPA appointment can be found here.
- Blast walls
5. Flammables: Alternative release
6. Five-year accident history
7. Prevention: Program level 3
8. Prevention Program level 2
9. Emergency response
This facility is subject to the EPA's SPCC regulation (40 CFR 112.7) and the release prevention procedures are discussed in more detail in the facility's SPCC plan.
The emergency response procedures are contained at the front of the Rish Management Plan and these procedures will be implemented in the event of an accidental release or the threat of such a relese. This facility processes natural gas and natural gas liquids (NGL) from a producing well. High pressure gas from the well is first routed to a high pressure separator located at another facility (permitted separately). The subsequent gas is then routed to the inlet of the gas plant. The gas plant strips out NGL liquids which are stored in an 18,000 gallon pressureized bullet tank operating at approximately 150 psig. The NGL is removed from the facility by tranfers to tank trucks.
The facility is subject to the RMP requirements since it is a natural gas processing plant producing NGL and contains threshold quantities of regulated substances. The facility has approximately 93,600 pounds of NGL on site. The NGL products are a mixture of hydrocarons consisting of methane, ethane, propane, butane and isobutane. For purposes of determining the largest weight on site, the highest density substance was used (butane).
Since this facility is a Program 1, a documented prevention program is not required. The operator is aware of the Generat Duty Clause in the Louisiana regulations (see Section 1.4 of the "Chemical Accident Prevention Compliance Program" document) and accidental release prevention is a policy adopted by the operator.
As documented in Section 4.0 of the Risk Management Plan, the facility has not experienced a release as defined in the regulation within the past five years.
Since this facility is a Program 1, a written Emergency Response Plan is not required. Emergency response procedures have been developed and are contained at the front of this plan and these procedures will be implemente
d in the event of an accidnetal release or the threat of such a release.
At present time, there are no planned changes to improve safety.