Florence High School / Middle School Page 1 of 3 Florence, WI

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1 Florence High School / Middle School Page 1 of 3 Florence, WI Plumbing Systems Review: The following report is the result of a site visit by Tim Kehoe of Muermann Engineering, LLC that occurred on October 5, Site observations and interviews with staff were all used in the preparation of this report. The old high school portion of the facility was constructed in 1937 with additions in the 50 s, 70 s and 90 s. Domestic Water A. The original high school building is served by a 2 galvanized water service. This service is capable of handling the demand for the building, however based on the age of the building it is assumed the piping is in poor condition. B. Water piping in the 1950 s addition is galvanized pipe. Based on the age of the pipe it is nearing the end of its life expectancy. C. The water piping in the 1974 and 1975 additions is copper piping. The piping is expected to be in fair condition. D. The existing building currently does not have a fire protection system. E. The majority of the water piping is located in pipe tunnels. A. Should this building be renovated or expanded, it is likely a fire protection system would be required. A new 6" water service would be required. B. We recommend that the water piping located in the old high school be replaced. C. The water piping located in the 1950 s addition should also be replaced. Sanitary Piping A. Waste and vent piping is primarily cast iron and galvanized pipe. Minor modifications have been made to portions of the building. These changes and repairs have been completed in schedule 40 PVC. B. The kitchen does not have a grease interceptor. C. The art room sinks do not have plaster traps. D. The science rooms do have an acid neutralization basin. The acid waste piping located in the science rooms is glass pipe.

2 Florence High School / Middle School Page 2 of 3 Florence, WI A. Sanitary piping located in the 1930 s building has out lived its life expectancy. This piping should be scheduled for replacement. B. Acid waste piping located within the science rooms should be scheduled for replacement. C. Per code, the kitchen three-compartment sink and dishwasher are required to discharge through a grease interceptor. Grease interceptors should be added to this equipment. D. Install plaster traps on all of the Art room sinks. Storm Piping A. All storm piping discharges to roof drains and interior storm piping. The interior storm piping is cast iron. The owner has not indicated problems with the existing storm piping. B. Some of the roof drain domes are full of debris. A. We recommend that a building of this age have all storm sewers viewed with a camera to determine the actual condition of the piping. B. Clean roof drain domes of debris. Plumbing Equipment A. There are two water heating systems for the building. A gasfired atmospheric vented water heater and storage tank is provided for classroom sinks, toilet rooms and locker rooms. A second gas-fired atmospheric water heater and storage tank is provided to supply hot water to the kitchen. Both water heating systems are very inefficient and generally in poor condition. The water heating systems are oversized for the actual building demand. B. Compressed air is located in the metals shop room. The air is piped to hose reels mounted on the walls. The air compressor appears to be old and in fair condition. C. A clearwater sump pump is located in the boiler room. This pump appears to discharge directly to grade. The pump does not have an alarm or control panel. D. The metals shop has portable welding tanks for each station. E. The building does not have a water softener.

3 Florence High School / Middle School Page 3 of 3 Florence, WI A. We recommend that the water heating equipment be replaced with new sealed-combustion, gas-fired energy-efficient equipment. B. We recommend that the existing air compressor be replaced and the air piping system be evaluated for leaks. C. We recommend that a high water alarm be placed on the clearwater sump. Plumbing Fixtures A. The toilet rooms in the original high school are original to the building and are in very poor condition. B. Plumbing fixtures located in the middle school are original to the building and are in poor condition. C. Nearly all toilet rooms have deficiencies with ADA compliance. D. The basement level of the high school does not have toilet rooms. E. Science room sinks are in poor / fair condition. The sinks are provided with hot and cold water, natural gas outlets and resin bowls for acid waste. The science rooms do have a master shutoff for the natural gas, however it is shared between rooms. F. Eye-wash/shower units were provided in the science rooms. G. Locker room plumbing fixtures and showers are in poor condition. The showers are controlled by a master mixing valve. The majority of the locker room showers are leaking. H. Home EC sinks are old and in poor condition. I. The eye wash in the metals lab is broken. A. Schedule all plumbing fixtures for replacement. B. Modify existing toilet rooms to be ADA compliant. See architectural report for additional information. C. Should toilet rooms be renovated, replace existing floor outlet urinals with wall hung urinals.

4 Florence High School, Elementary School and Hillcrest Florence School District Page 1 of 7 HVAC High School The following report is the result of a site visit by Jason Testin of Fredericksen Engineering that occurred on October 10, Site observations, construction plan review, and interviews with staff were all used in the preparation of this report. The original building was constructed in 1930, with additions being constructed in the 1950 s, 1974, 1975 and Heating System Existing Data One boiler plant serves the building. The boiler plant, installed in 1974, consists of two Kewaunee steam boilers each fired with natural gas. Each boiler has an input capacity of 4,184,000 btu. The piping and pumping system for the two Kewaunee steam boilers is comprised of two heating circuits, the first being a steam circuit, with the second being a hot water circuit. A heat exchanger on the steam side is used to transfer heat to the hot water circuit. The hot water circuit is served by a base mounted system pump. The hot water circuit serves the 1974 addition which includes the offices, gym, auditorium and classroom wing. According to information obtained by the Owner, only one boiler is needed to heat the school. The main condensate pump located in the lower level of the 1930 building was not operational at the time of our visit. The Kewaunee boilers are in fair condition. The main steam valve on boiler number two is rotted out so the boilers cannot be cycled to equal runtime. The boilers have exceeded the recommended life expectancy. Steam piping is original and appears to be in fair condition according to the Owner but has leaks. Steam condensate lines and traps are located in the perimeter tunnel system and run vertically to the upper floors of the 1930 building. Continue preventative maintenance on the system. Plans should be made for the replacement of the aging steam boilers, steam piping and steam equipment. Parts of the boiler will continue to fail and will be more difficult to find the older it gets. Hot water boilers, piping and hot water equipment is recommended to be installed in the 1930 building.

5 Florence High School, Elementary School and Hillcrest Florence School District Page 2 of 7 Ventilation and Air Conditioning Systems Existing Data There are three systems that provide ventilation for the facility. The three systems are classroom unit ventilators, built-up air handling unit, and constant volume air handling systems. The 1950 s classrooms are ventilated using classroom unit ventilators. Unit ventilators house a fan, heating coil and fresh air and return air dampers and controls in a single cabinet mounted in the classroom. Steam and condensate piping is run to each unit ventilator in tunnels. The unit ventilators are mounted on the perimeter wall. The 1930 building is ventilated by a built-up air handling unit. A built-up air handling unit consists of a central supply fan, heating coil, fresh air and return air dampers. Air is supply and returned from wall openings. Steam radiators are located in each classroom to provide heat. The 1974 addition tech. shops and gym are served by individual constant volume air handling systems. Constant volume systems consist of a central supply fan, which contains a heating coil, fresh air and return air dampers. A room thermostat is used to control the temperature of the air supplied to the space. The 1974 addition offices and classrooms are served by a hot water booster coil reheat system. A booster coil system utilizes a constant volume air handling unit and adds heating coils to the ductwork to provide individual room temperature control by heating the air supplied to the space through use of the booster coil. The library is served by two different units. The hot water booster coil reheat system that serves the offices also serves the library. The library is also served by a cooling only rooftop unit with hot water booster coils. The cafeteria is served by a constant volume air handling system. A constant volume system consists of a central supply fan, which contains a steam heating coil, fresh air and return air dampers. A room thermostat is used to control the temperature of the air supplied to the space. Hot water cabinet heaters heat all of the 1974 entrance vestibules. A cabinet heater utilizes a fan, a heating coil and a return air damper. Hot water piping is run to each cabinet heater. A room thermostat is used to control the cabinet heater. The classroom unit ventilators were installed in the early 1990 s. While the units are in fair condition, they have exceeded the recommended life expectancy. The built-up air handling unit is the original unit from While the unit is in fair condition, it has exceeded the recommended life expectancy. The relief for the unit is located in the attic. The constant volume air handling units serving the tech. shops are original from The units are in poor condition and have exceeded the recommended life expectancy. The constant volume air handling units serving the gym are in fair condition. The units have exceeded the recommended life expectancy. The hot water booster coil reheat systems serving the offices and classrooms were installed in The units are in fair condition and have exceeded the recommended life

6 Florence High School, Elementary School and Hillcrest Florence School District Page 3 of 7 expectancy. Also, the access and service clearance for the classroom unit does not meet the manufacturer s recommendations. According to the Owner, the auditorium, band and art rooms are typically cold. According to the Owner, it is difficult to control the temperature in the library due to it being served by two different units. The constant volume unit serving the cafeteria has the steam heating coil turned off. Heat is provided by the steam fin pipe radiation along the perimeter. It was noted that very little exhaust is provided in the locker rooms and there is not source of heat. Continue with preventative maintenance on the systems. Plans should be made for the eventual replacement of the aging unit ventilators. Plans should be made for the eventual replacement of the aging built-up air handling unit. Plans should be made for the eventual replacement of the units serving the tech. shops. Plans should be made for the eventual replacement of the units serving the 1974 addition. When the air handling unit that serves the 1974 classroom wing is replaced, it is recommended that a new mechanical room be found that can accommodate the access and service clearance requirements of the new unit. It is recommended that the library be served by a single unit. This will allow better temperature control for occupant comfort. It is recommended that a new exhaust system be installed in the locker rooms. Hot water cabinet heaters should also be provided to provide temperature control. Control Systems Existing Data The majority of the building is being controlled by a pneumatic control system. The gym air handling units and the office air handling unit are being controlled by a digital control system (Siemens). The limitations of the pneumatic system do result in comfort complaints. Pneumatic systems require frequent calibration to maintain accuracy. The newer digital controls are more accurate and more flexible. In addition, the industry has made such a complete changeover to digital controls that it is becoming difficult to find good pneumatic service technicians. Continue to maintain and operate the pneumatic control system as long as the current mechanical equipment remains. When any renovations to the existing equipment are made, a changeover to digital controls is strongly recommended.

7 Florence High School / Middle School Page 1 of 6 Florence, WI Electrical System Review: The following report is the result of a site visit by Tony Ritchie of Muermann Engineering, LLC that occurred on October 5, Site observations and interviews with staff were all used in the preparation of this report. The old high school portion of the facility was constructed in 1937 with additions in the 50 s, 70 s and 90 s. Main Electrical Service A. The electrical service is a 1,600A 120/208 Volt 3-phase, 4-wire. The main switchboard is an ITE and is located in the boiler room. The switchboard is dated The switchboard has limited room for expansion. B. The service is fed underground from pad mounted transformer. CT s are located inside the main switchboard. The meter is located inside on a wall next to the main switchboard. C. The main switchboard back feeds the original building service entrance in the old high school portion of the facility. This original building power panel is a Federal panelboard with fuses. D. The main service switchboard does not have a surge protection device. A. The main switchboard is at the end of its useful service life. We recommend replacement of main switchboard with a new switchboard that will have main circuit breaker and circuit breaker distribution sections. If a large building addition or additional air conditioning is added, a new service upgrade may be required. B. Provide surge protection device on main service. C. We recommend replacement of the original building power panel (located in the old high school portion of the facility) with a new distribution panelboard with circuit breakers. Panelboards A. We noted a combination of newer and older Square D panelboards as well as older ITE panelboards in the facility. Some of the newer Square D panels do allow for additional breaker space. The majority of the older panelboards are full and do not have space for additional circuit breakers. B. Cafeteria area was a location where a lack of power was identified by the staff.

8 Florence High School / Middle School Page 2 of 6 Florence, WI A. The newer panelboards are in good working order and can remain. B. Additional panelboards can be added where new circuits are required. C. We recommend replacing all panelboards in the old high school portion of the facility as well as any panelboards older than 1970 vintage in the rest of the facility. Generator A. There is a small interior Onan natural gas fueled generator located in the boiler room. There is only one Onan 30A automatic transfer switch. The emergency panel has life safety egress lighting, exits, and fire alarm circuits only which is code compliant. The emergency panel and generator appear to be the 1970 vintage. B. Emergency lighting contactors are utilized to control halls, auditorium and gym. We noted battery powered egress lighting units in some locations. It is unclear how much of the old high school portion of the facility lighting and exit lights are connected to the emergency panel. A. Due to the age of the generator and size of the transfer switch we would recommend a new replacement generator. The new generator unit would be located at the exterior of the building. B. We recommend two automatic transfer switches; one for life safety loads and one for non-life safety loads. Non-life safety loads could include circulating pumps and boilers for minimal heat, data rooms, AC for data rooms, sump pumps, kitchen coolers and freezers. Lighting Fixtures and Controls A. The old high school portion of the facility has surface fluorescent wrap fixtures. Lamp sources are about 50/50 T8/T12 fluorescent. B. Most corridors in additions are 2x4 lay-in acrylic lens fluorescent fixtures controlled via wall switches. Occupancy sensors have not been utilized. C. Most classrooms in additions are 2x4 lay-in acrylic lens 4-lamp fixtures. Dual-level switching and occupancy sensors have not been utilized.

9 Florence High School / Middle School Page 3 of 6 Florence, WI D. Incandescent and compact florescent cans are located in some areas. E. Both the old high school portion of the facility and additions have some old style exit lighting. F. Exterior canopy lighting fixtures are compact fluorescent and exterior wall lighting are HID. G. Minimal parking lot lighting was observed and appeared to be utility owned area lighting. A. The existing T12 lighting fixtures should be replaced with new T8 light fixtures. The existing old style exit lights should be replaced with LED exit lights. B. A possible upgrade to all LED exterior lighting should be considered. C. Another option is to replace the interior incandescent and compact florescent cans with LED type. D. Provide dual technology occupancy sensors in classrooms and offices to provide automatic lighting shut-off when rooms are unoccupied which will result in energy savings. E. Provide ultrasonic occupancy sensors in corridors to provide automatic lighting shut-off when corridors are unoccupied which will result in energy savings. Wiring Devices A. The receptacle and toggle switches vary in ages and some may need replacement due to age. A. Replace old devices as required. Fire Alarm System A. Fire alarm system is an old style Simplex zoned type. B. The fire alarm system is not code compliant with today s standards. C. Pull stations are located at most exterior doors. D. Most corridors have horn only notification devices. E. Classrooms do not have notification devices. F. Some corridors contain smoke detection devices. G. There are some duct smoke detectors at air handling units.

10 Florence High School / Middle School Page 4 of 6 Florence, WI A. The fire alarm should be replaced with a new fully addressable system to comply with current codes throughout the entire facility. Clock System A. A newer Carehawk Safety Communication system, installed by Superiorland Electronics, Inc, is utilized for synchronization of clocks. This system is combined with the intercom system. There is a mix of new and old simplex type, Logoed type and American type analog clocks. B. No problems were noted by staff with the clock system. A. We suggest selecting a specific clock type and replacing all other types to match. B. Additional clocks can be added to the existing system. Intercom System A. A newer Carehawk Safety Communication system, installed by Superiorland Electronics, Inc, integrates the intercom system with classroom paging, clocks and bell system. B. There are wall mounted speakers in the corridors of the old high school portion of the facility and recessed ceiling mounted speakers in the corridors of the additions. C. There are either wall mounted surface speaker boxes or wall mounted surface combination clock/intercom boxes in the classrooms. D. We did note some areas in the corridors that may have minimal coverage. E. No problems were noted by staff with the intercom system. A. We recommend removing wall mounted speakers and installing new recessed ceiling mounted speakers where possible in corridors and classrooms. B. Additional intercom speakers can be added, however additional equipment may be required based on the level of expansion.

11 Florence High School / Middle School Page 5 of 6 Florence, WI Phone System A. The facility utilizes a conventional analog phone system. Phone service entrance is located in closet adjacent to cafeteria. Majority of cabling is routed to this location and punched down on wall mounted voice wiring blocks. B. A VOIP phone system is being considered at this facility. A. If the facility moves forward with a VOIP phone system, the facility would typically furnish and install VOIP phone equipment and handsets. B. Run Cat 6 cable from each phone location back to rack mounted patch panels in the nearest data closet. The data system described below would need to be further evaluated for the additional rack mounting space. Data System A. The facility has two incoming fiber locations, one for the library and one serving the rest of the facility. Fiber is also routed north from this facility to elementary school as an interconnection between schools. The data closet in the Elementary school acts as remote data closet. B. This facility contains a main data closet adjacent to the library, small data rack in a closet in the old high school portion of the facility, an enclosed data rack in a classroom on the east side of the facility and other smaller wall racks located in multiple rooms. C. The Library has a wall mounted enclosed data rack serving just the library area. D. Data closets are connected with multimode fiber. E. We noted Cat 6, Cat 5 and Cat 5e cables installed. We did not note any plenum rated cable installed. F. The main data closet was air conditioned. A. If plenum spaces are utilized for the HVAC system within the facility, plenum rated data cable is required. B. Additional data can be added to existing racks. Additional racks may be required if a large amount of data cabling is added, for example upgrading to a VOIP system or other IP based systems. C. Another option to consider would be to compile multiple smaller rack locations into a couple dedicated data room locations with floor mounted racks.

12 Florence High School / Middle School Page 6 of 6 Florence, WI D. If a building addition would require that the data cable have a total installed length of over 300 feet, then an additional IDF data rack will be required. CATV System A. There is a CATV service to this building. There is one cable box from Charter Communications for the entire facility located in a closet adjacent to cafeteria. A. None. CCTV System A. There is a CCTV system in the facility consisting of approximately (15) cameras located primarily in corridors. The cameras are fed via coax cable. The staff did indicate this system should be replaced. B. An IP based CCTV system is being considered at this facility starting with the gymnasium and exterior locations. A. Remove existing analog CCTV system and expand the system considered for the gym and exterior to include IP based CCTV cameras in the corridors. Access Control System A. There is a Keri System Inc. door access control system for this Facility. B. There are electric strikes on 4 exterior doors. There are card readers at each door. The system is maxed out. A. Expand system as required. B. Another option would be to provide a new Networked keyless entry system. This can be done by reusing the existing strikes and readers and installing new data to a controller at door and new software. This will allow for an IP based network system.