Southern States Coop.- Chesapeake, VA (6200) - Executive Summary
EXECUTIVE SUMMARY |
The accidental release prevention and emergency response policies at your facility:
This facility handles ammonia, which is considered to be a regulated toxic substance by EPA. We observe all necessary safety precautions in handling ammonia to prevent unnecessary human exposure, to reduce the threat to our own personal health and to reduce the threat to nearby members of the community. It is our policy to adhere to all applicable federal, state and local rules and regulations. Safety depends upon the manner in which we handle ammonia, the safety devices inherent to the design of this facility, the safe handling procedures that we use and the training of our personnel. This facility is subject to Program 3 of the Risk Management Program because it is also subject to OSHA's Process Safety Management regulations.
This facility complies with ANSI K-61.1 and OSHA 1910.111 requirements for ammonia storage. If an emergency were to occur, it is our policy
to notify the local emergency response agency.
A description of your facility and the regulated substances handled:
The primary purpose of this facility is fertilizer production. We receive anhydrous ammonia by transport truck and store it as a liquid in a pressurized vessel. We receive aqua ammonia (44.8% solution) by transport truck and store it in an atmospheric vessel. Access to the process is restricted to authorized employees and contractors. The maximum amount of anhydrous ammonia that can be stored at this facility is 15,000 gallons (water capacity). The maximum amount of aqua ammonia that can be stored at this facility is 22,000 gallons (water capacity)
The worst case and alternative release scenarios:
The worst-case release scenario for anhydrous ammonia is failure of the 15,000 gallon anhydrous ammonia tank when filled to its maximum allowable capacity (85% @ 60 F). The distance to the endpoint of 140 ppm is 1.81 miles, based on the dense gas dispersion model Dega
dis. This distance extends beyond the facility boundary and there are estimated to be 12,837 residents, commercial/industrial areas, recreation areas, schools and cemeteries within the distance to endpoint.
The alternative release scenario for anhydrous ammonia is failure of a 12 foot length of 3 inch hose due to a cracked hose or failed fitting. The operator observes the leak and isolates the hose by closing the shut-off valves. The contents of the hose are released over a period of ten minutes. The distance to the endpoint of 140 ppm is 317 feet, based on the dense gas dispersion model Degadis. This distance extends beyond the facility boundary and there are estimated to be 12 residents and a business within the distance to endpoint.
The worst-case release scenario for aqua ammonia is failure of the 22,000 gallon anhydrous ammonia tank when filled to its maximum allowable capacity. It is conservatively assumed that the ammonia is released from solution over a period of ten mi
nutes. The distance to the endpoint of 140 ppm is 1.80 miles, based on the dense gas dispersion model Degadis. This distance extends beyond the facility boundary and there are estimated to be 12,695 residents, commercial/industrial areas, recreation areas, schools and cemeteries within the distance to endpoint.
The alternative release scenario for aqua ammonia is a pipe leak. The operator observes the leak and isolates the hose by closing the shut-off valves. Fifty-one pounds of aqua ammonia is released over a period of ten minutes. It is conservatively assumed that the ammonia is immediately released from solution. The distance to the endpoint of 140 ppm is 317 feet, based on the dense gas dispersion model Degadis. This distance extends beyond the facility boundary and there are estimated to be 12 residents and a business within the distance to endpoint.
The general accidental release prevention program and chemical-specific prevention steps:
This facility complies with EPA'
s accident prevention rule and all applicable state and local codes and regulations. The ammonia system is designed, installed, and maintained in accordance with ANSI K-61.1, OSHA 1910.111 and state law.
Process Safety Information
We maintain safety information that describes the chemical hazards, operating parameters and equipment designs associated with our ammonia storage facilities.
Process Hazard Analysis
Our Environmental, Health, Safety and Security (EHSS) team conducts comprehensive studies and reviews to ensure that hazards associated with our processes are identified and controlled efficiently. These activities are undertaken by a team of qualified personnel with expertise in process operations and are revalidated at a regular interval. Any findings related to the hazard analysis are addressed in a timely manner.
We maintain written operating procedures for operation of the ammonia storage facility. These procedures address various modes of operatio
n including initial startup, normal operations, temporary operations, emergency shutdown, emergency operations, normal shutdown and startup after a turnaround. The information is readily accessible to operators.
We have a comprehensive training program in place to ensure that employees who are operating processes are competent in the operating procedures associated with these processes. Refresher training is provided at least every three years.
Our EHSS team performs thorough annual maintenance inspections on process equipment to ensure proper operations. Basic visual inspections are performed by facility operators on a more frequent basis during loading and unloading of ammonia delivery vehicles. Process equipment examined by these checks includes: pressure vessels, storage tanks, piping systems, relief and vent systems, emergency shutdown systems, controls and pumps. Maintenance operations are performed by qualified personnel that have been traine
d in safe maintenance practices. Any equipment deficiencies are corrected in a safe and timely manner.
Management of Change
Whenever a change in process occurs, our management of change procedures ensure that we evaluate the impact on health and safety, modify the operating procedures and safety information as necessary, and inform and train our employees.
Whenever a process change is significant enough to require a change in safety information under the management of change procedures, we will perform a pre-startup review prior to initiating the process. The pre-startup review includes a confirmation of design specifications, operating procedures, process hazard analysis and employee training.
We conduct compliance audits on a regular basis to confirm that the provisions set out under the RMP rule are being implemented. These audits are performed at least every 3 years and any corrective actions required as a result of the audits are undertak
en in a timely manner.
We promptly investigate any incident that has resulted in, or could reasonably result in, a catastrophic release of ammonia. These investigations are undertaken to identify the situation leading to the incident as well as any corrective actions to prevent the incident from reoccurring. All reports are retained for a minimum of 5 years.
We have consulted with employees and their representatives regarding development of the Process Hazard Analysis and other elements of process safety management to ensure that they have access to all information to be developed under this rule.
Hot Work Permit
We have a Hot Work Permit program in place to meet the requirements of OSHA 29CFR1910.252(a). This program minimizes the likelihood of an accidental fire by requiring planning and preparation for hot work conducted on or near a covered process.
In order to ensure a safe facility, we check the safety performance o
f all contractors that work on our facility. Contractors are trained in the hazards associated with the covered processes and are trained in safe working practices.
Five-year accident history:
Due to our comprehensive safety program, this facility has never had an accident involving ammonia that caused deaths, injuries, property or environmental damage, evacuations, or shelterings in place.
The emergency response program:
It is company policy for each of our facilities to maintain an Emergency Action Plan & Emergency Response Plan. This plan addresses chemical inventory, evacuation procedures and instructions for notifying emergency response agencies. This plan is reviewed on an annual basis and is included in the employee training program. In the event of an emergency, it is our policy to notify the local emergency response agency and request that they respond to the emergency.
Planned changes to improve safety:
We will continue to implement our safety program to guarantee
that our facility is operated in a safe and reliable manner and to ensure the safety of our employees and the surrounding community.