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By Alan M. Petrillo

Front-mounted pumpers seem to have dwindled to very low numbers in department fleets, while rear-mount fire pumps have experienced a resurgence in popularity in recent years. The reasons some departments are choosing rear-mount pumps instead of midmounts revolve around the pros and cons of each pump location on the vehicle as well as how firefighters plan to use the pumpers.

Rear-Mount Pumps

Scott Oyen, vice president of sales for Rosenbauer, says there are a number of advantages to mounting a fire pump at the rear of a vehicle. "A rear-mount pump allows a smaller envelope truck with the same amount of compartmentation," he says. "Plus, access to the hosebed is generally better."

Grady North, product manager for pumpers, tankers, and aircraft rescue and firefighting (ARFF) for E-ONE, thinks the number one reason fire departments spec a rear-mount pumper is to get a shorter vehicle. "Taking the pump module away from the center of the truck and putting it at the rear means you shorten the vehicle the width of the pump module," North says. "That's more in line with an urban interface vehicle, which is highly maneuverable."

Mike Harstad, Rosenbauer's aerial and pumper products manager, notes that rear-mount pumpers offer significant advantages in terms of maneuverability, safety, and increased compartment space. "Rear-mount pumpers are typically three to four feet shorter than a standard pumper, which makes them more maneuverable. The space where the pump house would have been in the center of the truck becomes a transverse compartment that allows a significant increase in compartment space."

Chad Trinkner, director of fleet management for Pierce Manufacturing Inc., believes that a rear-mount pumper has the advantage of greater compartmentation. "With the pump at the rear of the vehicle, the pump house doesn't take up as much valued space on the pumper as a traditional midship pump," he says. "The disadvantage is that the driveshaft is longer when the pump components are placed in the rear."

Jim Kirvida, president of CustomFIRE, says the rear-mount pump concept is more beneficial on a custom chassis or two-door commercial chassis. "That allows you to shorten the truck dramatically," Kirvida says. "With a 1,000-gallon water tank and a 40-inch pump module, you can get a 120-inch cab-to-axle measurement on a typical pumper. If you put the pump in the rear, you can move the water tank forward and balance the load better while you're maximizing the amount of water you carry."

Kirvida says that Freightliner and Kenworth chassis are very popular for rear-mount pumpers. "We are able to get a decent compact overall length on those chassis, with 1,000- to 1,500-gallon water tanks and 1,250-gallon-per-minute (gpm) pumps at the rear," he says. However, compartmentation is generally greater on a rear-mount pumper, Kirvida maintains. "You lose the rear compartment, but you can have a large transverse compartment that's 96 inc

Robert Tutterow

This is on OSHA's radar. From July 30 to 31, 2014, OSHA conducted a stakeholders meeting at the Department of Labor in Washington, D.C. To attend the meeting, an interested person had to submit an application. The applicant had to choose whether to attend as a participant or as an observer. From the applications, OSHA determined who attended and limited attendance to one day only, stating that the subject areas would be repeated on the second day. I applied as an observer and was invited to attend the first day.

In September 2007, OSHA issued a "Request for Information" to solicit comments from the public to evaluate what action, if any, it should take to address the issue of OSHA regulations. Then, almost six years later, it decided to call the stakeholders meeting based on 9/11 World Trade Center surviving responder illness and the deaths and injuries from the West Fertilizer Company explosion and fire in April 2013 in West, Texas. OSHA indicated these two events highlighted the extremely high rate of emergency responder workplace deaths, injuries, and illnesses.

It was clear from the beginning of the meeting that OSHA thinks it should become more involved in developing workplace standards. The participants (approximately 30) came from diverse backgrounds including fire, utilities, rail, towing, construction workers, flight attendants, the FBI, and other government personnel. OSHA noted, "Skilled support employees are not emergency responders but nonetheless have specialized training that can be important to the safe and successful resolution of an emergency incident." The meeting was divided into four focus areas: preparedness, incident scenarios, emergency categorization, and flexibility. The comments during each of the four focus areas often overlapped. There was no doubt that the majority of the stakeholders believed there should be more OSHA involvement. The overarching question was not if but what and how?

Preparedness

Both the International Association of Fire Fighters (IAFF) and International Association of Fire Chiefs (IAFC) representatives stressed the importance of National Fire Protection Association (NFPA) standards, especially the health and wellness standards. In fact, "NFPA" was easily the most used acronym throughout the meeting. OSHA indicated that it is seriously considering enforcing NFPA standards but thinks some are not written to be enforceable. There was considerable discussion about the level of service an emergency response agency provides. For example, is a fire department an incipient, interior, or exterior fire department? There was general consensus that if an organization provided the service, it should meet an applicable standard. As in all of the focus areas, the idea of "typing" emergency response organizations was a common theme. There were no specific number of "types" suggested, but an organization's "type" would be based on the level of service provided.

Incident Scenarios

One of the questions about incident scene requirements was, "Should the focus be on high risk or more comprehensive?" The overwhelming answer was "comprehensive." The group stated that the "800-pound gorilla in the room" was carcinogen exposure at fire scenes. The group identified wellness and fitness as key points in the ability of emergency responders to safely handle incidents. The issue of age also came up, since the average age of firefighter line-of-duty deaths (LOD

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By Chris Mc Loone

As firefighters, we know we will be exposed to products of combustion when we respond to working structure fires.

The personal protective equipment we wear protects us from these products of combustion, but we know we must regularly clean and sanitize our turnout gear to ensure we remove all traces of the carcinogens that are part of these products. We know that these carcinogens can enter our bodies through skin absorption if not removed from our gear. It's the reason we shower as soon as possible after a structure fire. We don't want any smoke residue on our bodies.

Exposure to smoke is an obvious cancer threat. Back at the station, where we often spend most of our time when on duty, there is another cancer threat that is easily controllable: diesel exhaust. There are various products on the market to help remove this known carcinogen from fire stations and, when it comes to firefighter health and safety, that are wise investments.

Health Issues

Diesel exhaust has long been suspected of being a human carcinogen, but in June 2012, the World Health Organization (WHO) classified it as carcinogenic to humans. "The National Fire Protection Association has said for the last 10 years that removal of exhaust in the fire station is important for the health and safety of firefighters," says John Koris, regional sales manager, Air Vacuum Corporation. "But, probably the biggest change took place in 2012 when the WHO declared diesel a known carcinogen. Prior to that, it was listed as probable."

Scott Beecher, president, Ward Diesel, adds that the International Agency for Research on Cancer has classified diesel exhaust (DE) and diesel particulate matter (DPM) as known human carcinogens (Group 1). "When diesel fire trucks idle inside the fire station, exhaust generated can spread throughout the entire station, where it can darken walls and settle on food and clothing," he says. "Short-term exposure to high concentrations of DE/DPM can cause headaches, dizziness, and irritation of the eye, nose, and throat severe enough to distract or disable personnel. Prolonged DE/DPM exposure can increase the risk of cardiovascular, cardiopulmonary, or respiratory disease and lung and other cancers."

Mike Johnson, vice president of sales, Clean Air Concepts/MagneGrip Group, says that effectively removing diesel exhaust fumes is something that no longer can be overlooked when designing a station. In addition to firefighter health and wellness, he says there are other reasons to address diesel exhaust at the station. "To maintain vehicle preparedness, firefighters often will test vehicles indoors, especially during inclement weather," he says. "To meet the International Mechanical Code, a hose must be connected directly to the tailpipe when running vehicles indoors for maintenance and testing purposes."

Removal Solutions

According to Beecher, there are three main types of solutions and advantages and disadvantages associated with each. "You have a hanging solution where a hose physically attaches to the tailpipe. Another system would be a ceiling-mounted system, and the third technology is vehicle-mounted."

Beecher points out that newer diesel vehicles that use urea still need to be handled

Richard Marinucci

In the real world, this probably occurs mostly in metro departments. Smaller organizations-i.e., suburban and rural-operate with some hybrid of this structure. This is the result of staffing and funding-big surprise here. Some departments may make a conscious decision to create a different response system. Regardless, this system has placed a great deal of responsibility on the engine to carry additional equipment to respond to an ever-increasing variety of emergencies. The traditional engine has become the "jack of all trades" for many fire departments.

Fire engines are significant investments for any department, and there is a tendency to maximize the functionality to the point that it creates additional challenges for departments. There is nothing wrong with doing as much as you can with what you have. But, this cannot come at the expense of trying to do too much with what you have or failing to plan to accommodate additional operations. Many remember the term "triple combination pumper." This referred to having a pump, water tank, and hose. This is a misnomer because these vehicles now carry truck company equipment, ladders, emergency medical service (EMS) supplies, special rescue tools, and more. The EMS equipment can be significant if the engines are used for paramedic response. All of this has an impact on performance and service.

Define the Mission

Departments must decide what functions they expect from their engines. They must consciously plan how their operations will go-not only for fire response but for other emergencies that are within their organizations' responsibilities. This is critical in that it helps decide the type of vehicles fire departments need. If they do not do this, it can add too much to a vehicle, which can make it more difficult to use, more expensive to operate, and less reliable. It can also lead to a shorter life expectancy because the mileage can add up faster than expected and lead to earlier replacement.

No matter what you have, there are limitations on what can be carried. This is often limited by the gross vehicle weight rating (GVWR), which establishes the overall weight that the frame and axles can safely carry. There is a finite amount of compartment space, and only so much can be jammed into a compartment. Too often, departments add to vehicles as they acquire more equipment to address expanding roles. The added weight will create a safety issue if it exceeds the vehicle's GVWR and can impact warranty and vehicle durability. It adds to liability should something go wrong. Overcrowded compartments can slow operations as firefighters look for equipment for the job at hand or need to remove unneeded equipment to get to what they really need.

Comprehensive Approach

Fire departments need a comprehensive approach when acquiring apparatus or making modifications to current apparatus. They need to consider specifications when ordering or making adjustments to an apparatus that significantly change it from its original intent and design. Investing in a planning process that looks at the end goals in totality will benefit all organizations.

Establishing the proper specifications before the purchase is the first step in making sure you get the vehicle that can handle the workload you expect it to. Realistically anticipate the expected equipment to be carried based on the jobs assigned to the engine companies. Besides the usual triple combination pumper duties, will you