Midwest Ag Development, County Line Facility - Executive Summary
Risk Management Plan (RMP) - Ammonia |
Midwest Ag Development, County Line Facility
Jamestown, North Dakota
1. Accidental Release Prevention and Emergency Response Policies
We at Midwest Ag Development in Jamestown are strongly committed to employee, public, and
environmental safety. This commitment is an inherent part of our comprehensive accidental release
prevention program that covers areas such as design, installation, operating procedures, maintenance,
and employee training associated with the processes at our facility. It is our policy to implement
appropriate controls to prevent possible releases of regulated substances. If such a release does
occur, our trained emergency response personnel are at hand to control and mitigate the effects of
the release. We also coordinate our response efforts with the Jamestown Fire Departmen
provides additional emergency response expertise.
2. Stationary Source and Regulated Substances Handled
Our facility's primary activities include support services for crop production. We have anhydrous
ammonia stored in a 12,000 and two 6,000-gallon interconnected tanks at our facility south of
Jamestown (Figure 1). The maximum amount stored is 20,400 gallons (104,978.4 pounds) at the
maximum fill capacity of 85%.
3. Worst Case Release and Alternative Release Scenarios
We utilized RMP PRO for the worst case and alternate case scenarios of the required offsite
consequence analysis for our facility. The following details these scenarios.
The worst case release scenario involves a catastrophic release of the entire contents of the
anhydrous ammonia storage tanks (104,978.4 pounds) in gaseous form over a 10-minute period.
At Class F atmospheric stability, 1.5 m/s wind speed, and urban topography, the maximum distance
to a toxic endpoint of 0.14 mg/L is 4.6 miles (Figu
re 2). The estimated population within a 4.6-
mile radius of this facility is 100.
The alternative release scenario involves a release from an anhydrous ammonia product line. The
scenario involves the release of 7,616.42 pounds of ammonia in a gaseous form over a period of 30
minutes. Under neutral weather conditions, the maximum distance to the toxic endpoint of 0.14
mg/L of ammonia is 0.31 mile (Figure 3). The estimated population within a 0.31-mile radius of the
facility is 10.
4. General Accidental Release Prevention Program
Our facility has taken all the necessary steps to comply with the EPA's accidental release prevention
requirements as set forth in 40 CFR part 68. The following sections briefly describe the elements
of the release prevention program that is in place at our stationary source.
Process Safety Information
Midwest Ag Development maintains a detailed record of safety information that describes the
chemical hazards, operating parameters, and equipment de
signs associated with all processes
Process Hazard Analysis
Our facility conducts comprehensive studies to ensure that hazards associated with our processes are
identified and controlled effectively. Any findings from the hazard analysis are addressed in a
Midwest Ag Development maintains written operating procedures to ensure that activities within
our covered processes are conducted safely. These procedures address various modes of operation;
the information is regularly reviewed and is readily accessible to operators involved in the processes
Midwest Ag Development has a comprehensive training program in place to ensure that employees
who are operating processes are competent in the operating procedures associated with these
Midwest Ag Development conducts documented maintenance checks on process equipment to
ensure proper operation. Maintenance checks are conducted by qua
lified personnel with previous
training in maintenance practices. Examples of process equipment that would receive maintenance
checks include: pressure vessels, storage tanks, piping systems, relief and vent systems, emergency
shutdown systems, controls, and pumps. Any equipment deficiencies identified by the maintenance
checks are corrected in a safe and timely manner (Appendix C).
Management of Change
Written procedures are in place at Midwest Ag Development to manage changes in process
chemicals, technology, equipment, and procedures. Process operators, maintenance personnel or
other employees whose job tasks are affected by a modification in process conditions are promptly
notified of the modification and offered training to deal with it.
Midwest Ag Development routinely conducts pre-startup safety reviews related to new processes
and modifications in established processes. These reviews are conducted to confirm that
construction, equipment, and operating
and maintenance procedures are suitable for safe startup prior
to placing equipment into operation.
Midwest Ag Development conducts compliance audits on a regular basis to determine whether the
plan's provisions, set out under the 40 CFR part 68, are being implemented. Any non-compliance
issue discovered during the audit is promptly corrected.
Midwest Ag Development truly believes that process safety management and accident prevention
is a team effort. Company employees are strongly encouraged to express their views concerning
accident prevention issues and to recommend improvements. In addition, our employees have access
to all information created as part of the facility's implementation of the RMP, particularly
information resulting from process hazard analyses.
5. Five-year Accident History
Midwest Ag Development has had an excellent record of preventing accidental releases over the last
5 years. Due to our stringent release prev
ention policies, no accidental release has occurred during
6. Emergency Response Plan
Midwest Ag Development maintains a written emergency response plan to deal with accidental
releases of hazardous materials. The plan addresses all aspects of emergency response including first
aid and medical treatment, evacuations, and notification of local emergency response agencies and
the public (Appendix A).