Johnson Controls, Inc - Executive Summary
JOHNSON CONTROLS INC. LIVERMORE, CALIFORNIA |
1. EXECUTIVE SUMMARY
Johnson Controls, Inc. (JCI) owns and operates a foam seat manufacturing facility located in Livermore, California (JCI-Livermore). On site, JCI-Livermore has two 6,000 gallon storage tanks, two 60 gallon day tanks, and one 30 gallon tank which store Toluene Diisocyanate (TDI), a regulated hazardous substance, for the manufacturing of polyurethane foam car seats. The maximum intended inventory of TDI on site is above the threshold quantity of 10,000 pounds listed in 40 C.F.R. ' 68.130.
Since the quantity of TDI exceeds the threshold quantity, JCI-Livermore is required to implement a Risk Management Program (RMP). JCI-Livermore is subject to Program Level 1 requirements. This submission of RMPSubmit presents the details of the RMP compliance measures conducted by JCI-Livermore. The required RMP information was electronically submitted to the United States Environmental Protection Agency (U.S. EPA) in a timely mann
er before the deadline of June 21, 1999.
RMP Submit defines minimum and maximum values that can be entered. Specifically, limitations exist for the release rate (Section 2.6), release duration (Section 2.7), toxic endpoint distance (Section 2.11). Due to these limitations, JCI-Livermore was forced to use the default (inaccurate) values for the release rate, release duration, and toxic endpoint distance for this submittal rather than the more accurate values utilized by the ISCST3 model.
Table 1. Difference Between RMP Submit Values and Actual Modeled Parameters
RMP Submit Default Value Actual (Correct) Modeled Value
Release Rate 0.2 lb/min 7.43x10-4 lb/min
Release Duration 9999.9 minutes 8.22x10+7 minutes
Distance 0.01 miles 0.000 miles
1.1 Accidental Release Prevention and Emergency Response Policies
At JCI-Livermore, certain precautions, such as implementing engineering controls, and wearing appropriate personal protective equipment, includ
ing respiratory protection if exposure limits may be exceeded, are taken when handling TDI itself or equipment that has been in contact with the chemical. In order to prevent accidental release of the chemical from various sources, numerous safety procedures have been enacted to ensure the maximum safety of the employees working with TDI and the population surrounding the plant. Employees of the plant have been trained in the proper handling of TDI and in the actions to be taken in case of an accidental release.
The JCI-Livermore facility has a maximum intended on-site inventory of 97,982 lbs of TDI. The largest spill would be a release from one of the 6,000 gallon storage tanks. The storage tanks are located in a diked area designed to contain the entire contents of the tank. In addition, the tank farm is located in a completely enclosed building. Due to the mitigation measures in place and the low volatization of TDI, the toxic endpoint concentration of 7.0 mg/m3 does not reac
h outside the building. In addition, safety measures that have been taken include informing the plant population of the hazards of the chemical, and making sure that proper procedures in the maintenance of the TDI equipment, such as pumps, filters, and valves, have been followed and adhered to.
JCI-Livermore's emergency response policies have been designed to comply with all applicable state and federal regulations. These policies also summarize the actions that need to be taken in response to a chemical release.
1.2 Description of JCI-Livermore and the Regulated Substance Handled
JCI-Livermore, a QS-9000 certified facility, produces molded polyurethane foam for automotive seating applications. Foam production is a result of a specific blend of chemicals, including TDI, which are poured into specially designed molds. Once the foam is inspected for imperfections, it is moved to the cloth covering area by a conveyor system, where it is covered by cloth and attached to the metal fra
me of the seat and then packed and shipped to JCI customers.
The regulated substance handled at this facility is Toluene Diisocyanate (unspecified isomers) [Benzene, 1,3-diisocyanatomethyl-]. The maximum amount of TDI that can be stored in the plant is 97,982 pounds.
1.3 Worst Case and Alternate Release Scenarios
Section ' 68.25 of the RMP Regulation defines a worst-case scenario as a release of the largest quantity of a regulated substance from a vessel or process line failure that results in the greatest distance to a specified endpoint. All releases are assumed to take place at ground level for the worst-case and alternate case scenarios.
At JCI-Livermore, the worst-case scenario is identified to be the release of the largest tank of TDI. Since both large storage tanks have the same maximum capacity (61,080 lb.), one of the tanks is assumed to instantaneously release the entire contents in a worst-case accidental release scenario. The TDI will then be captured in the containm
ent area under the large storage tanks and volatilize into the atmosphere. The rate of vaporization into the atmosphere was found to be 7.43x10-4 lb/min as described in Table 1 above.
Modeling of this release was performed using the EPA's dispersion modeling software ISCST3 and shows that the toxic endpoint is never reached. Due to this, there are no affected public receptors or no environmental impacts that will occur off-site due to this release. Because the worst-case release of TDI does not have offsite impacts, JCI-Livermore qualifies for Program 1 of the Risk Management Program.
1.4 The General Accidental Release Prevention Program and Chemical Specific Prevention Steps
JCI-Livermore has specific process controls in place to minimize the risks of spills. All chemical storage tanks are located indoors, above ground with secondary containment. Tanks critical to the process have level sensors to prevent any tank from being overfilled. Fill duration is also monitored during t
he transfer of TDI to the process lines and if not satisfied within a set time period, auto filling ceases and an alarm is activated. Chemical wet systems are equipped with high and low-pressure switches to shut down in the event of a line rupture. Critical valves are monitored electronically as to open/closed positioning.
JCI-Livermore has a preventative maintenance software program in place to address maintenance of all vital parts of the plant's day to day operations. Specific environmental issues are also addressed with this computer driven program.
JCI-Livermore has established an Air Monitoring Program that monitors the airborne concentration of TDI within the production facility.
Property Conservation and Risk Management audits are conducted annually by Factory Mutual Risk Appraisers as well as Environmental audits by the JCI corporate environmental department located in Plymouth, Michigan.
1.5 Five-Year Accident History
In the past five years, there have been no accide
ntal releases of TDI at JCI-Livermore.
1.6 The Emergency Response Program
JCI-Livermore's emergency response policies have been designed to comply with all applicable state and federal regulations. These policies summarize the actions to be taken in response to a chemical release. In the event of a release, the HazMat Team will respond using appropriate actions, as described in the Environmental Spill Contingency Plan, in association with the local fire department.
JCI-Livermore has established a spill response team (HazMat Team) and has assigned specific duties and responsibilities to specific individuals, like the spill Incident Commander, who have been selected and trained to respond to in-house chemical releases. If necessary, the appropriate outside facilities, such as the hospital or nearby residences and businesses, will be notified. Employees are and will be trained in the safe handling and management of hazardous materials, respiratory protection, confined space entry, t
ransportation of dangerous goods, and in the emergency response procedures to be taken in the event of an accidental release.
All spills that take place at the Livermore facility must be documented and reported to the appropriate personnel. The reporting allows the number and type of spills that occur to be tracked. This in turn allows measures to be implemented to prevent similar spills from occurring in the future. Spills exceeding the reportable quantity must be reported to certain regulatory agencies.
If a release of 10 gallons or more of TDI has occurred, JCI informs Bayer Corporation, the supplier of TDI, of the accidental release and inquires about assistance and advice.
1.7 Planned Changes to Improve Safety
JCI-Livermore is committed to continuous improvement in all aspects of its operation, including safety. As such, JCI-Livermore strives to take a proactive approach to ensure employee safety, health and wellness and to protect the environment.
JCI-Livermore conducts r
outine inspections and audits to ensure safe work conditions and compliance to applicable regulations. These inspections and audits may be conducted by internal personnel from various levels of the organization (line employee to plant manager), by JCI personnel from other locations, or by outside consultants. Results of the inspections and audits are documented and communicated, and action plans are developed to correct noted deficiencies.
A Process Hazard Analysis (PHA) was recently performed at the Livermore facility. Recommendations from that PHA are being implemented which will improve the safety of the TDI process, as well as reduce the likelihood and magnitude of any TDI spill.