Triangle Agronomy Services, LLC (Waubun) - Executive Summary

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TIRANGLE AGRONOMY SERVICES  - WAUBUN, MN 56589 
 
EXECUTIVE SUMMARY- Anhydrous Ammonia 
For further infromation contact Wes Roll, General Manager 218.584.5567 
 
1. Facility Policy: 
 
The owners, management and employees of Triangle Agronomy Services are committed to the prevention of any accidental releases of anhydrous ammonia.  If an accidental release should occur, the facility is prepared to work with the local fire department or other authorities to mitigate any releas and minimize the impact of the release to the public and the enviroment. 
 
2.Facility Information: 
 
This facility maintains Thirty (30) 1,000-gallon nurse tanks for customer delivery.  Our combined storage capacity in nurse tanks is 140,000 pounds. Anhydrous ammonia is stored in one 30,000 gallon storage tank on site. The maximum storage capacity of stationary storage tanks is 140,000 pounds of anhydrous ammonia.  Therefore, the total facility anhydrous ammonia storage capacity for our facility is 280000 pounds.  The larg 
est storage vessel at our facility contains140,000 pounds. 
 
3. THE WORST CASE SCENARIO: 
 
Our worst case scenario is the loss of the total contents of the 30,000 gallon storage tank, when filled to the greatest amount allowed (85% of capacity), released as a gas over 10 minutes, resulting total vaporization. The maximum quantity released would be140,000 pounds. According to DEGRADIS modeling, the distance to the endpoint (from point of dispersion to 200 PPM) would have an off-site impact. It should be noted that Triangle Agronomy Services, LLC has never had a release of an entire stationary storage tank from any distribution facility. 
 
ALTERNATIVE RELEASE SCENARIO: 
 
The most common alternative release scenario(s) from our facility would not reach an end-point off-site.  The alternative release scenario modeled for the purposes of this plan is a 2-minute release from a stationary storage tank representing a valve and hose failure requiring a manual shut down.  The total amount of anhydro 
us ammonia released in this scenario would be12,000 pounds. The distance to the endpoint (from point of dispersion to 200 PPM) would have an off-site impact. It should be noted that Triangle Agronomy Services, LLC has never had a release of this type from any distribution facility. 
 
4. THE GENERAL ACCIDENTAL RELEASE PREVENTION PROGRAM AND CHEMICAL-SPECIFIC PREVENTION STEPS: 
 
The ammonia system is designed, installed and is maintained in accordance with ASTM standards and the ASME codes. This facility complies with the ANSI K 61.1 standards (1989), OSHA (29 CFR 1910.111), EPA's Accidental Release Prevention Rule as well as all applicable federal, state and local codes and regulations. 
 
Our ammonia system is protected from major releases by internal excess flow valves, check valves, relief valves, manual shutoffs and emergency shutoff valves. The load-out risers used for the purpose of filling the nurse tanks are protected by excess flow valves and fill line breakaways to immediately sto 
p the flow of ammonia if a line or a hose fails. All main storage tank valves and the riser load valves are locked when not in use. 
 
Our ammonia system is inspected on a regular basis with maintenance and preventive maintenance scheduled and documented. Liquid and vapor valves, hoses, excess flow valves, gauges, and relief valves are replaced when necessary and/or according to the guidelines in the ANSI standards. 
 
Training is provided to all employees at minimum annually, whenever there is a change in the process or whenever competency with the regulations is questioned. The training consists of classroom lecture, current videos, testing and certification and on the job training.  
 
5. FIVE-YEAR ACCIDENT HISTORY: 
 
There has been no accidents involving anhydrous ammonia that caused deaths, injuries, property or environmental damage including evacuations on or off-site. 
 
6. THE EMERGENCY RESPONSE PROGRAM: 
 
In the event of an emergency involving our ammonia system, it is our policy to n 
otify the local community fire department and request that they respond to the emergency. In preparation for this, we have coordinated with all of the local response agencies by providing information and facility tours to ensure that they are familiar with and properly prepared for an incident at our facility. This will help to ensure that our community has the strategy for responding to and mitigating the threat posed by an ammonia release. This complies with the requirement for our facility to be included in the community emergency response plan prepared under EPCRA and coordinated with our LEPC. 
 
In addition, Triangle Agronomy  has an Emergency Response and Contingency Plan for each facility that complies with the requirements of OSHA (29 CFR 1910.38 and 1910.1200). The plan includes public notification, provisions for initial medical care, evacuations and LEPC coordination. 
 
7.  PLANNED CHANGES TO IMPROVE SAFETY: 
 
We do not plan to make any changes to the physical site. We will co 
ntinue to provide our employees with ongoing annual training to ensure that they are current with all of the safe ammonia transfer and handling procedures, and provide regular inspection and maintenance on all of the ammonia equipment.
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