Wisvest Ther-Max, LLC - Executive Summary
Executive Summary |
Wisvest Ther-Max, LLC is the owner and operator of the ammonia refrigeration system located at the Fleming distribution facility in Lacrosse Wisconsin. The refrigeration is supplied to Fleming as a utility and is the sole responsibility of Wisvest Ther-Max, LLC.
1. Accidental Release Prevention and Emergency Response Policies
We at Wisvest Ther-Max, LLC are committed to employee, public and environmental safety. This commitment is demonstrated by our comprehensive accidental release prevention program that covers areas such as design, installation, operating procedures, maintenance, and employee training associated with the processes at this facility. It is our policy to implement appropriate controls to prevent possible releases of regulated substances. Unforeseeably, if such a release does occur, our employees are trained to evacuate the facility and allow emergency response personnel to control and mitigate the effects of the release. W
e will be completely coordinated with the LaCrosse Fire Department which provides the emergency response expertise.
2. The Stationary Source and the Regulated Substances Handled
Our facility's primary activities revolve around the storage and distribution of refrigerated and frozen foods.
Anhydrous ammonia is the only regulated substance present at our facility. The entire ammonia inventory is attributed to its use as a refrigerant.
The maximum inventory of ammonia at our facility is 15,000 pounds.
3. The Worst Case Release Scenario and the Alternative Release Scenario, includes administrative controls and mitigation measures to limit the distances for each reported scenario. To evaluate the worst case and alternative release scenarios for ammonia we have used the methodology given in the Model Risk Management Program and Plan for Ammonia Refrigeration by SAIC. The following paragraphs provide details of the chosen scenarios.
The worst case release scenario submitted for the
Program 3 toxic substance as a class involves a catastrophic release from ammonia used as a refrigerant. The scenario involves the release of 15,000 pounds of ammonia in a gaseous form over 10 minutes. At Class F atmospheric stability and 1.5 m/s windspeed, the maximum distance of 1.50 miles is obtained corresponding to a toxic endpoint of 0.14 mg/L.
One alternative release scenario has been submitted for the toxic substance present in the Program 3 process.
The alternative release scenario for Ammonia involves a release from a relief valve in the ammonia refrigeration process. The scenario involves the release of 600 pounds of ammonia in a gaseous form over 10 minutes. Under neutral weather conditions, the maximum distance to the toxic endpoint of 0.14 mg/L of Ammonia is 0.10 miles.
4. The General Accidental Release Prevention Program and the Chemical-Specific Prevention Steps
This facility has taken all the necessary steps to comply with the accidental release prevention requ
irements set out under 40 CFR Part 68 of the EPA. In addition, this facility is subject to the OSHA PSM standard under 29 CFR 1910.119. This facility is also subject to EPCRA Section 302 notification requirements. The following sections briefly describe the elements of the release prevention program that is in place at our stationary source.
Process Safety Information
Wisvest Ther-Max, LLC maintains a detailed record of written safety information that describes the chemical hazards, operating parameters and equipment designs associated with all the processes.
Process Hazard Analysis
The methodology used to carry out the analysis is What If-Checklist. The analysis are undertaken by a team of qualified personnel with expertise in engineering and process operations and are revalidated at a regular interval of 5 years. Any findings related to the hazard analysis are addressed in a timely manner.
For the purposes of safely conducting activities within our covere
d process, Wisvest Ther-Max, LLC maintains written operating procedures. These procedures address various modes of operation such as initial startup, normal operations, temporary operations, emergency shutdown, emergency operations, normal shutdown and startup after a turnaround. The information is reviewed and is readily accessible to operators involved with the process.
Wisvest Ther-Max, LLC has a training program in place to train employees who are operating the process or are associated with the process. Refresher training is provided at least every three (3) years and more frequently as needed.
Wisvest Ther-Max, LLC will carry out documented maintenance checks on process equipment to ensure proper operations. Process equipment examined by these checks includes pressure vessels, storage tanks, piping systems, relief and vent systems, emergency shutdown systems, controls and compressors. Maintenance procedures are carried out by qualified personn
el with a background in maintenance practices. Training is provided to the personnel as needed. Any equipment deficiencies identified during maintenance checks are corrected in a safe and timely manner.
Management of Change
Written procedures are in place at Wisvest Ther-Max, LLC to manage changes in process chemicals, technology, equipment and procedures. Process operators, maintenance personnel and all other employees whose job tasks are affected by a change in a process are promptly made aware of and offered training to deal with the changes.
Pre-start up safety reviews related to new processes and to modifications in the established process are conducted as a regular practice at Wisvest Ther-Max, LLC. These reviews are conducted to confirm that construction, equipment, operating and maintenance procedures are suitable for safe startup prior to placing equipment into operation.
Wisvest Ther-Max, LLC conducts audits on a regular basis to d
etermine whether the provisions set out under the RMP Rule are being implemented. These audits are carried out at least every 3 years and any corrective actions required as a result of the audits are undertaken in a safe and prompt manner.
Wisvest Ther-Max, LLC promptly investigates any incident that could reasonably result in a catastrophic release of a regulated substance. These investigations are undertaken to identify the situation leading to the incident as well as any corrective actions to prevent the release from reoccurring. All reports are retained for a minimum of 5 years.
Wisvest Ther-Max, LLC truly believes that process safety management and accident prevention is a team effort. Wisvest Ther-Max, LLC and Fleming company employees are encouraged to express their views concerning accident prevention issues and to recommend improvements. In addition, employees have access to all information collected as part of the facility'
s compliance with the RMP Rule including information resulting from process hazard analyses.
On occasion, our company hires contractors to conduct specialized maintenance and construction activities. Prior to selecting a contractor, a thorough evaluation of safety performance of the contractor is carried out. Wisvest Ther-Max, LLC has a strict policy of informing the contractors of known potential hazards related the contractor's work and the processes. Contractors are also informed of all applicable procedures for emergency response to an accidental release of a regulated substance.
5. Five-year Accident History
This is a new ammonia refrigeration installation and there have not been any accidental releases at this facility.
6. Emergency Response Plan
Wisvest Ther-Max, LLC has a written emergency response plan to deal with accidental releases of hazardous materials. The plan includes all aspects of emergency response including adequate first aid and medical treatmen
t, evacuations, notification of local emergency response agencies and the public, as well as post-incident decontamination of affected areas.
In addition, the plan is updated to reflect any pertinent changes taking place within our processes that would require a modified emergency response.
LaCrosse County LEPC is the Local Emergency Planning Committee (LEPC) with which our emergency plan has been coordinated and verified.
7. Planned Changes to Improve Safety
This is a new ammonia refrigeration installation and as the process is refined, there may be developments and findings resulting from the implementation of the various elements of our accidental release prevention program. Any changes are expected to be implemented in a timely manor.