ORIGINAL YEAR OF CONSTRUCTION NUMBER OF BUILDING STORIES 12/07/2012 BUILDING SURVEY DATE

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1 SOUTH GOODWIN AVENUE URBANA, ILLINOIS SYSTEM CONDITION INDEX.070 PRIMARY BUILDING USE BUILDING SURVEY TEAM BUILDING SYSTEM REPLACEMENT COST $ 4,101,000 OFFICE BUILDING GROSS SQUARE FEET 34,081 NUMBER OF BUILDING STORIES 3 BUILDING SURVEY DATE CANNON DESIGN: Tim Morriss (M), Amanda Buchheit (E) ORIGINAL YEAR OF CONSTRUCTION /07/2012 B U I L D I N G D I S C I P L I N E R E P L A C E M E N T C O S T S U M M A R Y TRADE E X P E C T E D R E M A I N I N G S E R V I C E L I F E FAIR ($) GOOD ($) (5-10 YEARS) (10-20 YEARS) POOR ($) (1-5 YEARS) EXCELLENT ($) (20+ YEARS) TOTAL ($) $/GSF PERCENT OF BUILDING TOTAL (%) MECHANICAL 130,400 2,093, ,900 2,406, PLUMBING 117, , , FIRE PROTECTION 66, , , ELECTRICAL 54, , , , COMMUNICATIONS 35, , , TOTAL % OF TOTAL 286,300 2,405, , ,600 4,101, NO CRITICAL ITEMS IDENTIFIED FOR THIS BUILDING NOTE: Cost Estimates are Construction Costs are in 2013 dollars to Replace in Kind unless otherwise noted PAGE 1

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3 Text106 M E C H A N I C A L D I S C I P L I N E R E P L A C E M E N T C O S T S U M M A R Y SYSTEM/COMPONENT CHILLED WATER SYSTEM Chilled Water System PROCESS COOLING SYSTEM Lab process cooling STEAM AND CONDENSTATE SYSTEM Steam and Condensate System HEATING HOT WATER SYSTEM Hydronic Heating Loop HEAT EXCHANGER Heat Exchanger for Hydronic Heating Loop SUPPLY AIR SYSTEM 93.AHU-1 and 95.AHU-1 supply air distribution system 93.AHU-2 supply air distribution system AIR HANDLER 93.AHU-1 93.AHU-2 95.AHU-1 HUMIDIFICATION SYSTEM Humidifier for 93.AHU-1 Humidifier for 93.AHU-2 TOILET EXHAUST SYSTEM Toilet Exhaust POOR (1-5 YEARS) E X P E C T E D R E M A I N I N G S E R V I C E L I F E FAIR GOOD (5-10 YEARS) (10-20 YEARS) EXCELLENT (20+ YEARS) TOTAL 46,000 46,000 58,500 58,500 81,000 81, , ,000 25,900 25, , , , , , , , ,000 77,800 77,800 49,700 49,700 49,700 49,700 11,900 11, PAGE 3

4 Text106 M E C H A N I C A L D I S C I P L I N E R E P L A C E M E N T C O S T S U M M A R Y LABORATORY EXHAUST SYSTEM OTHER EXHAUST NATURAL GAS SYSTEM HVAC CONTROLS SYSTEM SYSTEM/COMPONENT Exhaust for (5) fume hoods Exhaust for combustion engine-driven pumps Exhaust for gas cabinets Exhaust for perchloric fume hood General Exhaust for Basement Generator exhaust duct Natural Gas for Labs HVAC Controls MECHANICAL TOTAL % OF TOTAL POOR (1-5 YEARS) E X P E C T E D R E M A I N I N G S E R V I C E L I F E FAIR GOOD (5-10 YEARS) (10-20 YEARS) EXCELLENT (20+ YEARS) TOTAL 30,100 30,100 7,400 7,400 9,600 9,600 6,200 6,200 9,600 9,600 48,100 48,100 20,500 20,500 31,000 31, ,400 2,093, ,900 2,406, PAGE 4

5 Text6 C H I L L E D W A T E R S Y S T E M A S S E S S M E N T D A T A Item ID The chilled water service to this building is fed from the adjacent Materials Research Center building. There are 6" chilled water supply and return pipes. There are no chilled water pumps in the Superconductivity Center. Overall Condition Date Installed 1/1/1995 Comments The 6" chilled water supply and return pipes enter the building at the southeast corner of the basement mechanical room. These pipes run below grade for approximately 40 feet before entering the Materials Research Lab building. The chilled water system serves the chilled water cooling coils for 93.AHU-1 and 93.AHU-2 (93.AHU-2 also has a DX cooling coil, which is no longer used). Fair Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Size/Capacity 6" main Replacement Cost $46,000 Originally this chilled water system was fed by steam absorption chillers located in the Materials Research Lab. The Materials Research Lab was later connected to the campus chilled water loop PAGE 5

6 Text6 C H I L L E D W A T E R S Y S T E M S U R V E Y P H O T O G R A P H S Chilled water supply and return pipes (top, above sanitary line) where they enter the building, at the far southeast corner of the basement mechanical room. Chilled water cooling coil connections for 93.AHU PAGE 6

7 Text6 L A B P R O C E S S C O O L I N G A S S E S S M E N T D A T A Overall Condition Item ID Date Installed 1/1/1995 Manufacturer Comments The basement labs appear to use a Liebert computer room air conditioning (CRAC) DX split system for process cooling. The condensing unit is located on grade on the east side of the building. This condensing unit was in operation at the time of survey. Fair Remaining Useful Life 7 Years Nominal Useful Life: 30 Years Liebert Replacement Cost $58,500 There are no existing drawings for this CRAC system, and the basement labs could not all be visited at the time of survey due to the lab work being conducted. This CRAC likely serves one of the basement lab spaces, but exactly which one could not be confirmed. Nameplate information on the exterior condensing unit could not be read, but the unit appears to be at least 10 years old. Text6 L A B P R O C E S S C O O L I N G S U R V E Y P H O T O G R A P H S Condensing unit for Liebert CRAC system PAGE 7

8 Text6 S T E A M A N D C O N D E N S A T E S Y S T E M A S S E S S M E N T D A T A Item ID This building is served by a 6" low-pressure steam pipe that is connected to the campus steam system. The steam system serves a steam heating coil in one AHU; building hot water reheat coils, perimeter fin-tube and cabinet unit heaters, and hot water heating coils for two AHUs (all via a single steam-to-hot water heat exchanger); and two AHU humidification systems (via two steam-to-clean steam heat exchangers). Overall Condition Date Installed 01/01/1995 Size/Capacity Originally the campus steam loop ran under this building location. When the Superconductivity Center was built the steam tunnel was demolished at the building footprint location, and the 10" campus steam main and 4" and 1-1/2" campus condensate return lines were routed overhead through the basement, crossing the building east-west. There are steam manholes on the east and west sides of the building to support this arrangement. The 6" steam line and 2" condensate return serving this building are take-offs from the larger campus piping that runs east-west across the basement of this building. The steam piping enters the building in the basement, near the basement mechanical room. There are two condensate receivers in the basement. The first condensate receiver serves the steam heating coil and humidifier for 93.AHU-2. This condensate receiver pumps to the second condensate receiver, which also serves the heat exchanger for the building hydronic heating loop and humidifier for 93.AHU-1. The condensate return for this system is metered at the discharge of the second condensate receiver. This condensate receiver pumps back to the campus condensate return main. Good Remaining Useful Life 12 Years Nominal Useful Life: 30 Years 6" steam main Replacement Cost $81, PAGE 8

9 Text6 S T E A M A N D C O N D E N S A T E S Y S T E M S U R V E Y P H O T O G R A P H S Steam heat exchanger system for building hydronic heating loop. Condensate return piping. Condensate receiver near 93.AHU PAGE 9

10 Text6 H Y D R O N I C H E A T I N G L O O P A S S E S S M E N T D A T A Item ID The hydronic heating loop serves duct-mounted hot water reheat coils in the basement and hot water reheat coils and perimeter finned tube radiation on the 1st, 2nd and 3rd floors of the building. Overall Condition Date Installed 1/1/1995 Model Number HP/kW Comments This hydronic heating loop is fed from a steam-to-hot water heat exchanger in the basement mechanical room. There are two base-mounted pumps for the hydronic heating loop. The pumps are 100% redundant (only 1 pump runs at a time). There are separate loops for the hot water reheat coils and the perimeter fin tube systems, but there does not appear to be any provision for providing different water temperatures to each loop. The separate loops are probably to allow one loop to be isolated for maintenance. Fair Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Size/Capacity Bell & Gossett Replacement Cost $474,000 Pumps are sized for 120 GPM 3 HP for each pump One of the hydronic heating loop pumps has moderate corrosion from some earlier leakage in the piping. Some of the piping near the pump needs to have insulation reapplied PAGE 10

11 Text6 H Y D R O N I C H E A T I N G L O O P S U R V E Y P H O T O G R A P H S Heat exchanger for hydronic heating loop. Pumps for the hydronic heating loop. Pumps for the hydronic heating loop. Pumps for the hydronic heating loop. Pumps for the hydronic heating loop. Cabinet unit heater in 3rd floor Men's restroom PAGE 11

12 Perimeter fin tube in 3rd floor walkway to Engineering Sciences Building. Cabinet unit heater PAGE 12

13 Text6 H E A T E X C H A N G E R F O R H Y D R O N I C H E A T I N G L O O P A S S E S S M E N T D A T A Item ID There is a steam-to-hot water heat exchanger and hydronic pumping package in the basement mechanical room. Overall Condition Good Date Installed 1/1/1995 Remaining Useful Life 17 Years Nominal Useful Life: 35 Years Replacement Cost $25,900 Text6 H E A T E X C H A N G E R F O R H Y D R O N I C H E A T I N G L O O P S U R V E Y P H O T O G R A P H S Heat exchanger and condensate receiver for hydronic heating loop PAGE 13

14 Text A H U - 1 A N D 9 5. A H U - 1 S U P P L Y A I R D I S T R I B U T I O N S Y S T E M A S S E S S M E N T D A T A Item ID AHU-1 provides supply air to the 1st, 2nd and 3rd floor offices plus the 2nd and 3rd floor bridge to the Engineering Sciences Building plus the Laser Lab in the basement (via 95.AHU-1 in series). Overall Condition Date Installed 1/1/1995 Supply air to spaces other than the Laser Lab appears to be Variable Air Volume (VAV) using zoned VAV boxes and hot water reheat coils controlled by wallmounted pneumatic thermostats. Return air from spaces other than the Laser Lab is via ducted return air to the 93.AHU-1 return air fan in the basement mechanical room. 95.AHU-1 provides constant-volume air to the Laser Lab. 95.AHU-1 is downstream of and in series with 93.AHU-1. There is no provision for return air from the Laser Lab. All supply air to the basement labs is exhausted via exhaust ductwork and a roof-mounted exhaust fan. Supply air from 95.AHU-1 to the Laser Lab does not have any downstream zoning or reheat coils. There is a downstream HEPA filter in the ductwork, just upstream of the Laser Lab. Fair Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Replacement Cost $824, PAGE 14

15 Text A H U - 2 S U P P L Y A I R D I S T R I B U T I O N S Y S T E M A S S E S S M E N T D A T A Item ID AHU-2 provides tempered 100% outside air to the basement labs other than the Laser Lab. The air is provided to the labs at a constant volume. The labs are zoned using hot water reheat coils. Overall Condition Date Installed 1/1/1995 There are no provisions for return air from the basement labs. All air supplied to the basement labs is exhausted via exhaust ductwork and an exhaust fan on the roof. Fair Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Replacement Cost $221, PAGE 15

16 Text A H U - 1 A S S E S S M E N T D A T A Item ID This air handler is located in the basement mechanical room and serves the offices on the 1st, 2nd and 3rd floors of the building (these floors are general office spaces, without classrooms) including the walkway on the 2nd and 3rd floors that leads to the Engineering Sciences Building. Overall Condition Date Installed 1/1/1995 Equipment Tag Manufacturer Comments With modifications made to the air handling systems in 1995, this AHU also serves the Laser Lab area of the basement labs via 95.AHU-1 (see description for 95.AHU-1). 95.AHU-01 is downstream of and in series with 93.AHU-1. This AHU has a hot water heating coil and a chilled water cooling coil. This AHU supplies variable-air volume zone boxes that have hot water reheat coils. The supply and return fans appear to be on variable-frequency drives (VFDs). This AHU has a separate return air fan that is a floor-mounted utility-set type fan. The return air system is ducted (not plenum return). Outside air is brought in through a sidewall louver that opens into the pit that holds the backup generator (generator exhaust is ducted to the roof). Relief air is ducted to the roof through the mechanical chase located at the southeast corner of the building. This AHU has a steam-to-clean steam humidifier. This AHU has recently been converted to DDC controls. The actuators are still pneumatic and are tied to a new DDC interface panel. Fair Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Size/Capacity Voltage AHU-1 Carrier 26,000 CFM 208V / 3 phase Replacement Cost $206,100 The VFD for the return air fan may have an electrical panel clearance issue, as the water softener system is possibly too close to this VFD PAGE 16

17 Text A H U - 1 S U R V E Y P H O T O G R A P H S 93.AHU-1 coil section (exterior wall at the far left contains outside air intake louver). 93.AHU-1 supply air fan, with supply air duct overhead, and humidifier in foreground. 93.AHU-1 return air fan. 93.AHU-1, with cooling coil section at far right, and DDC control interface panels in foreground. 93.AHU-1 relief air on roof (the larger of the two louvered housings). VFD for 93.AHU-1 return air fan (to left of water softening system) PAGE 17

18 Text A H U - 2 A S S E S S M E N T D A T A This AHU is located in the basement mechanical room, and serves the basement lab spaces with the exception of the Laser Lab area. This AHU supplies 100% outside air and has no return air capability (supply air to spaces is exhausted to the exterior). Overall Condition Date Installed 1/1/1995 Equipment Tag Manufacturer Model Number Item ID Comments This AHU uses a steam heating coil and a chilled water cooling coil. This AHU was later fitted with a DX cooling coil to serve as backup to the chilled water cooling coil (see Comments section). This AHU has a steam-to-clean steam humidifier. AHU is mounted on a pipe stand to allow for proper condensate drainage from the steam heating coil. This unit appears to be constant air-volume, with the basement labs having constant volume supply and exhaust air. The supply fan for this AHU does appear to have a variable-frequency drive (VFD), possibly for airflow balancing purposes. The basement lab zones are also served by hot water zone reheat coils. The condensing unit for the DX cooling coil is located at grade on the east side of the building. Fair Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Serial Number Size/Capacity Voltage AHU-2 Carrier Replacement Cost $118,000 39NXS175NSL T CFM 208V / 3 phase This AHU was fitted with a DX cooling coil around This DX coil is in addition to the chilled water cooling coil. Per building staff this was done to serve as a backup to the chilled water system, which at the time was served by steam absorption chillers located in the Materials Research Lab. The steam absorption chillers were occasionally out of service when cooling was required. Since then the steam absorption chillers have been replaced by service from the campus chilled water system, which has a far higher degree of reliability. The DX condensing unit is described as no longer being in service, and it's service disconnect was in the off position at the time of survey. This DX condensing unit would apparently need to be serviced before it could be used again PAGE 18

19 Text A H U - 2 S U R V E Y P H O T O G R A P H S 93.AHU-2 in mechanical room. Outside air damper for 93.AHU-2. Backup condensing unit for 93.AHU-2 (disconnect is off) PAGE 19

20 Text A H U - 1 A S S E S S M E N T D A T A Item ID This air handler is located in the basement mechanical room and is assumed to be designated as 95.AHU-1. This air handler serves the basement Laser Lab area. This air handler operates downstream of and in series with 93.AHU-1, meaning the part of the supply air from 93.AHU-1 is routed to the intake of 95.AHU-1, which then serves the Laser Lab. Overall Condition Date Installed 01/01/1995 Equipment Tag Manufacturer Model Number Comments This AHU is constant air-volume. The unit has a supply fan but no return air fan. This AHU is equipped with a DX cooling coil and a hot water heating coil. The condensing unit for the DX cooling coil is located at grade on the east side of the building. This condensing unit appears to be in service. This AHU appears to be equipped with a downstream HEPA filter, downstream of the AHU but upstream of the Laser Lab. This unit does not have its own humidifier. Humidification is presumably handled by 93.AHU-1. Fair Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Serial Number Size/Capacity Voltage AHU-1 Carrier Replacement Cost $77,800 39NXH071NSL T CFM 208V / 3 phase The basement Laser Lab was originally served by 93.AHU-2 (which provides 100% outside air). With the 1995 ductwork reconfiguration that added 95.AHU-1 the Laser Lab is now fed with a mixture of outside air and return air (from the 1st, 2nd and 3rd floor offices) served from 93.AHU-1. This AHU appears to have been added to provide supplemental cooling to the Laser Lab, or to serve as a backup to the chilled water system (which was originally used a steam absorption chiller) plus added a HEPA filter and a supply fan to overcome the pressure drop of the HEPA filter. The reasons for switching the Laser Lab from 93.AHU-2 to 93.AHU-1 are not clear, as this switch introduces return air from the 1st, 2nd and 3rd floor offices into the Laser Lab. Presumably the Laser Lab needed additional supply air volume that could not be accommodated by 93.AHU-2 and the HEPA filter downstream was added to address any concerns about air quality PAGE 20

21 Text A H U - 1 S U R V E Y P H O T O G R A P H S 95.AHU-1 95.AHU-1, with supply air duct from 93.AHU-1 (large round duct at extreme left) and take-off to 95.AHU-1. Condensing unit for 95.AHU PAGE 21

22 Text6 H U M I D I F I E R F O R 9 3. A H U - 1 A S S E S S M E N T D A T A Overall Condition Date Installed 1/1/1995 Manufacturer Model Number Item ID Comments A steam-to-clean steam heat exchanger system that provides humidification to 93.AHU-1. This humidifier is located adjacent to 93.AHU-1. Water for this humidifier is provided by the water softener system. Poor Remaining Useful Life 2 Years Nominal Useful Life: 20 Years Serial Number Size/Capacity DriSteem STS STS 150 lbs/hr Replacement Cost $49,700 The steam is injected into the supply air ductwork downstream of the main supply fan for 93.AHU-1. Text6 H U M I D I F I E R F O R 9 3. A H U - 1 S U R V E Y P H O T O G R A P H S Humidifier for 93.AHU PAGE 22

23 Text6 H U M I D I F I E R F O R 9 3. A H U - 2 A S S E S S M E N T D A T A Overall Condition Date Installed 1/1/1995 Manufacturer Model Number Item ID A steam-to-clean steam heat exchanger system that provides humidification to 93.AHU-2. This humidifier is underneath 93.AHU-2 (this AHU is on a pipe stand). Water for this humidifier is provided by the water softener system. Poor Remaining Useful Life 2 Years Nominal Useful Life: 20 Years Serial Number Size/Capacity DriSteem STS STS 165 lbs/hr Replacement Cost $49,700 Text6 H U M I D I F I E R F O R 9 3. A H U - 2 S U R V E Y P H O T O G R A P H S Humidifier for 93.AHU PAGE 23

24 Text6 T O I L E T E X H A U S T A S S E S S M E N T D A T A Item ID Toilet exhaust is served by two roof-mounted exhaust fans. Overall Condition Date Installed 1/1/1995 One fan serves the Women's restrooms located in the southwest corner of the 1st, 2nd, and 3rd floors of the building. One fan serves the Men's restrooms located in the northeast corner of the 1st, 2nd and 3rd floors of the building. This fan also provides exhaust air from small telecom closets adjacent to the Men's restrooms located on the 1st, 2nd, and 3rd floors of the building. The Janitors closets on the 1st, 2nd and 3rd floors of the buildings are not tied to the toilet exhaust system. These rooms appear to tie into the building return air system. Fair Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Replacement Cost $11, PAGE 24

25 Text6 T O I L E T E X H A U S T S U R V E Y P H O T O G R A P H S Toilet exhaust fan serving the Men's restrooms and Telecom closets. Toilet exhaust fan serving the Women's restrooms PAGE 25

26 Text6 E X H A U S T F O R ( 5 ) F U M E H O O D S A S S E S S M E N T D A T A Overall Condition Item ID Date Installed 1/1/1995 Comments Five of the six fume hoods in the basement lab areas are served by a single exhaust fan. The common exhaust duct connects to an 18" dia. exhaust duct riser at the southeast corner of the building. The fan on the roof is a dilution-type fan. Fair Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Replacement Cost $30,100 The exhaust fan appears to be 1993 original. Text6 E X H A U S T F O R ( 5 ) F U M E H O O D S S U R V E Y P H O T O G R A P H S Fume hood exhaust fan on roof (second from right). These three fume hoods tie into the fume hood exhaust fan system PAGE 26

27 Text6 E X H A U S T F O R C O M B U S T I O N E N G I N E - D R I V E N P U M P S A S S E S S M E N T D A T A Item ID The basement labs are served by a pump exhaust system. This is an exhaust system of 3" diameter ductwork that ties to a single vertical 3" dia. exhaust riser near the southeast corner of the building. This vertical riser ties to a dilution-type exhaust fan located on the roof. Overall Condition Date Installed 1/1/1995 Comments The primary purpose of this system is to vent the exhaust from internal-combustion (gasoline) small engines that are used to drive vacuum pumps in the basement labs. Good Remaining Useful Life 12 Years Nominal Useful Life: 30 Years Replacement Cost $7,400 The fan on the roof appears to be 1993 original, and is a direct-drive fan. Text6 E X H A U S T F O R C O M B U S T I O N E N G I N E - D R I V E N P U M P S S U R V E Y P H O T O G R A P H S Exhaust fan on roof. Exhaust fan on roof (bottom center of picture) PAGE 27

28 Text6 E X H A U S T F O R G A S C A B I N E T S A S S E S S M E N T D A T A Item ID There is an exhaust system for gas cabinets that are located in approximately 5 locations in the basement. Overall Condition Date Installed 1/1/1995 Comments The exhaust ductwork in the basement ties to a 12" dia. exhaust duct riser, and an exhaust fan located on the southeast corner of the roof. The exhaust fan is a dilution-type fan. Fair Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Replacement Cost $9,600 The exhaust fan appears to be a 1993 original. This exhaust fan description is based on existing building drawings. This system may not have ever been put into use. Text6 E X H A U S T F O R G A S C A B I N E T S S U R V E Y P H O T O G R A P H S Exhaust fan on roof (at left) PAGE 28

29 Text6 E X H A U S T F O R P E R C H L O R I C F U M E H O O D A S S E S S M E N T D A T A Item ID There is one perchloric fume hood in Preparation Room 0015 in the basement. This fume hood is served a 10" exhaust duct, and an exhaust fan on the roof, located in the southeast corner of the building. The exhaust fan on the roof is a dilution-type fan. Overall Condition Fair Date Installed 1/1/1995 Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Replacement Cost $6,200 Comments The fan on the roof appears to be 1993 original. The exhaust ductwork near the perchloric fume hood is equipped with a washdown system. Text6 E X H A U S T F O R P E R C H L O R I C F U M E H O O D S U R V E Y P H O T O G R A P H S Exhaust fan on roof (second from left). Perchloric fume hood in Preparation Room 0015 (with washdown system for fume hood and exhaust duct) PAGE 29

30 Text6 G E N E R A L E X H A U S T F O R B A S E M E N T A S S E S S M E N T D A T A Item ID No supply air to the basement labs is recirculated. All "return" air from the basement is instead exhausted through a single fan on the roof. The 21" dia. exhaust ductwork system ties together in a single riser, located at the southeast corner of the building. The exhaust fan on the roof is a dilution-type fan. Overall Condition Fair Date Installed 1/1/1995 Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Replacement Cost $9,600 Comments The fan on the roof appears to be 1993 original construction. Text6 G E N E R A L E X H A U S T F O R B A S E M E N T S U R V E Y P H O T O G R A P H S General exhaust fan for basement (at right). Exhaust air damper in Room PAGE 30

31 Text6 G E N E R A T O R E X H A U S T D U C T A S S E S S M E N T D A T A Overall Condition Item ID Date Installed 1/1/1995 Comments The generator that is located in the pit/area well on the east side of the building has a ducted exhaust system. This exhaust pipe is routed into the building and runs up the mechanical chase at the southeast corner of the building to the roof. The exhaust duct/pipe discharges at the roof and has a rain cap. Good Remaining Useful Life 12 Years Nominal Useful Life: 30 Years Replacement Cost $48,100 Per building staff this generator exhaust, despite being routed up to the roof, still occasionally creates issues for other nearby buildings. The outside air intakes for these other buildings will pull in some of the generator exhaust fumes when the generator is tested. Text6 G E N E R A T O R E X H A U S T D U C T S U R V E Y P H O T O G R A P H S Generator exhaust on roof (with rain cap, near top of photo) PAGE 31

32 Text6 N A T U R A L G A S F O R L A B S A S S E S S M E N T D A T A Overall Condition Item ID Date Installed 1/1/1995 This building has a 2" natural gas service, to provide natural gas to the four basement fume hoods. This gas service is not used for building heating or domestic hot water heating. The building generator runs on fuel oil. Good Remaining Useful Life 20 Years Nominal Useful Life: 40 Years Replacement Cost $20,500 Text6 N A T U R A L G A S F O R L A B S S U R V E Y P H O T O G R A P H S These are three of the four basement fume hoods that have natural gas service. This is one of the four basement fume hoods that have natural gas service PAGE 32

33 Text6 H V A C C O N T R O L S A S S E S S M E N T D A T A Item ID The controls in the building are a mixture of DDC, pneumatic, and standalone. Zone hot water reheat coils and cabinet unit heaters in restrooms have wall-mounted pneumatic thermostats. Cabinet unit heaters in stairs and corridors appear to use integral thermostats. Perimeter fin-tube systems appear to use thermostatic valves. Overall Condition Date Installed 1/1/1995 Comments The three AHUs in the basement mechanical room were recently upgraded to DDC control, but even this DDC control appears to reuse the existing pneumatic actuators on the AHUs, via transducers located in the new DDC control panels. There is a duplex air compressor in the basement mechanical room for the temperature control system. This system ties into the control air system for the adjacent materials research lab, providing redundancy. Yet another level of redundancy is provided by the air compressor for the labs, which is tied into the temperature control system and can serve as a backup to the air compressors in both the Superconductivity Center and the Materials Research Lab. Poor Remaining Useful Life Exceeded Nominal Useful Life: 18 Years Replacement Cost $31,000 The air compressor for temperature controls appears to be relatively new (not 1993 original). No major leaks are reported in this system PAGE 33

34 Text6 H V A C C O N T R O L S S U R V E Y P H O T O G R A P H S Air compressor for temperature controls. Thermostat for zone reheat coil PAGE 34

35 Text106 P L U M B I N G D I S C I P L I N E R E P L A C E M E N T C O S T S U M M A R Y DOMESTIC COLD WATER SYSTEM DOMESTIC HOT WATER SYSTEM HEATER PLUMBING FIXTURES SYSTEM SANITARY WASTE AND VENT SYSTEM STORM DRAINAGE SYSTEM PROCESS WATER SYSTEM COMPRESSED-AIR NITROGEN SYSTEM OTHER PIPED GAS SYSTEM/COMPONENT Domestic Cold Water System Domestic Hot Water System Domestic Water Heater Plumbing Fixtures Sanitary Piping Storm Drainage System Water Softening System Compressed Air for Labs Nitrogen for Labs Helium Recovery System for Labs PLUMBING TOTAL % OF TOTAL POOR (1-5 YEARS) E X P E C T E D R E M A I N I N G S E R V I C E L I F E FAIR GOOD (5-10 YEARS) (10-20 YEARS) EXCELLENT (20+ YEARS) TOTAL 52,900 52,900 34,100 34,100 13,200 13,200 58,000 58, , , , ,900 26,600 26,600 68,200 68,200 10,200 10,200 11,900 11, , , , PAGE 35

36 Text6 D O M E S T I C C O L D W A T E R S Y S T E M A S S E S S M E N T D A T A Item ID This building is served by a 6" cold water main. This piping enters the building in the mechanical room at the southeast corner of the basement. Overall Condition Date Installed 1/1/1995 This cold water service feeds: - domestic cold water to restrooms and labs and janitors closets - a 4" sprinkler piping main - a water softening system (for AHU humidifiers) - an RPZ backflow preventer, for perchloric hood and exhaust duct washdown - an electric water heater for building domestic hot water Excellent Remaining Useful Life 30 Years Nominal Useful Life: 50 Years Replacement Cost $52, PAGE 36

37 Text6 D O M E S T I C C O L D W A T E R S Y S T E M S U R V E Y P H O T O G R A P H S Domestic water service in the basement mechanical room, with fire protection piping (blue valves) at top, water meter in the middle, and the backflow preventer for domestic water at bottom PAGE 37

38 Text6 D O M E S T I C H O T W A T E R S Y S T E M A S S E S S M E N T D A T A Overall Condition Item ID Date Installed 1/1/1995 This system provides domestic hot water to the restrooms, labs, and janitors closets. The water heater is located in the basement mechanical room. The system does have recirculation piping, and the recirculation pump is in the basement mechanical room. Excellent Remaining Useful Life 30 Years Nominal Useful Life: 50 Years Replacement Cost $34, PAGE 38

39 Text6 D O M E S T I C W A T E R H E A T E R A S S E S S M E N T D A T A Item ID There is an electric tank-type domestic water heater for this building, located in the basement mechanical room. This heater was installed in This heater provides domestic hot water to the restrooms, labs, and janitors closets. Originally this building used a steam-to-hot water heat exchanger, but this system was replaced by the current water heater. Overall Condition Excellent Date Installed 11/01/2012 Remaining Useful Life 24 Years Nominal Useful Life: 25 Years Manufacturer A.O. Smith Model Number ECT Serial Number 1233A Size/Capacity electric tank-type, 80 gal. Voltage 240V / 1 phase Replacement Cost $13, PAGE 39

40 Text6 D O M E S T I C W A T E R H E A T E R S U R V E Y P H O T O G R A P H S Domestic Water Heater PAGE 40

41 Text6 P L U M B I N G F I X T U R E S A S S E S S M E N T D A T A Item ID Plumbing fixtures appear to be 1993 originals, and are considered to be in good condition. Non-automatic flush valves are in use. Overall Condition Excellent Date Installed 1/1/1995 Remaining Useful Life 30 Years Nominal Useful Life: 50 Years Replacement Cost $58,000 Text6 P L U M B I N G F I X T U R E S S U R V E Y P H O T O G R A P H S Men's restroom on 3rd floor. Men's restroom on 3rd floor PAGE 41

42 Text6 S A N I T A R Y P I P I N G A S S E S S M E N T D A T A Item ID One 8" sanitary waste exits the building at the southeast corner of the basement mechanical room, running easy, and ties into a manhole near the southeast corner of the building. Overall Condition Date Installed 1/1/1995 Manufacturer Material There is a second sanitary line that serves the restrooms on the upper floors of the north half of the building. This 4" sanitary line exits at the northeast corner of the building and ties into a 24" sanitary main that runs along the north edge of the building. The piping appears to be cast iron, joined together with grooved fittings (mechanical fasteners). The sanitary drain from the perchloric fume hood to the ejector pit appears to be the only acid-resistant piping in the building. Basement sanitary waste is routed to an ejector pit, which is located in the basement mechanical room. This duplex ejector pit discharges into the 8" sanitary line (overhead) in the mechanical room. A 6" acid waste from the adjacent Materials Research Lab building also ties into the 8" sanitary line (overhead) in the mechanical room. Excellent Remaining Useful Life 30 Years Nominal Useful Life: 50 Years Size/Capacity Charlotte Piping cast iron Replacement Cost $107,400 8" and 4" building exits PAGE 42

43 Text6 S A N I T A R Y P I P I N G S U R V E Y P H O T O G R A P H S 8" sanitary waste in mechanical room (at upper left). 8" sanitary piping (bottom) where is exits the building. Ejector pit, in the basement mechanical room PAGE 43

44 Text6 S T O R M D R A I N A G E S Y S T E M A S S E S S M E N T D A T A Item ID The building has a duplex sump pit, located in the basement mechanical room. This sump pit discharges into an 8" storm drain piping (routed overhead in the mechanical room). Overall Condition Date Installed 1/1/1995 Existing drawings do not show any storm drain piping tying into the sump pit except for the drain in the outside pit that houses the generator. There are two roof drains on the roof. One is near the southeast corner, and one is near the northeast corner. The northeast drain drops down to exit the building near the northeast corner of the building (exiting to the east). The southeast drain drops down to tie into the 8" overhead storm drain in the mechanical room. Both storm drain piping exits from the building tie into manholes on the east side of the building. The overhead storm drain piping in the mechanical room appears to be insulated. Existing drawings for this building do not show any other storm drain piping, or any drain tile system outside the building. Excellent Remaining Useful Life 30 Years Nominal Useful Life: 50 Years Replacement Cost $115, PAGE 44

45 Text6 S T O R M D R A I N A G E S Y S T E M S U R V E Y P H O T O G R A P H S Sump pit, in mechanical room. Sump pit, in mechanical room. Storm drain piping (large pipe at top). Roof drain near northeast corner of building (to the right of the exhaust fan). Roof drain near southeast corner of building (at far left) PAGE 45

46 Text6 W A T E R S O F T E N I N G S Y S T E M A S S E S S M E N T D A T A Item ID This system provides softened water to two different steam-to-clean steam humidifiers. The water softening system and the humidifiers are all located in the basement mechanical room. This system has duplex softening tanks that allow the tanks to be serviced without shutting down the system. This system is metered. Overall Condition Good Date Installed 1/1/1995 Remaining Useful Life 10 Years Nominal Useful Life: 30 Years Manufacturer Marlo Replacement Cost $26,600 Text6 W A T E R S O F T E N I N G S Y S T E M S U R V E Y P H O T O G R A P H S Water softening system PAGE 46

47 Text6 C O M P R E S S E D A I R F O R L A B S A S S E S S M E N T D A T A Item ID Compressed air for the basement labs is provided by an air compressor that is located in the basement mechanical room. This air compressor has filtration and drying accessories more robust than that seen on a temperature controls air compressor. Overall Condition Date Installed 1/1/1995 Manufacturer Comments This air compressor is separate from the temperature controls air compressor, however this lab air compressor does serve as a backup to the temperature controls air compressor. This air compressor will serve the temperature controls system in the event that the temperature controls air compressors in both this building and the adjacent Materials Research Lab building fail. Good Remaining Useful Life 12 Years Nominal Useful Life: 30 Years Sullair Replacement Cost $68,200 This system serves as backup to the temperature controls air compressors because the control VAV reheat coils that serve the offices on the 1st, 2nd and 3rd floors will fail "hot" if control air pressure is lost. The windows in this building are not operable, so valves failing "hot" will quickly make (and has quickly made) the building unbearably hot PAGE 47

48 Text6 C O M P R E S S E D A I R F O R L A B S S U R V E Y P H O T O G R A P H S Lab air compressor Lab air compressor PAGE 48

49 Text6 N I T R O G E N F O R L A B S A S S E S S M E N T D A T A Item ID Nitrogen piping is extended to all labs in the basement. This system is supplied from the adjacent Materials Research Lab building. Overall Condition Date Installed 1/1/1995 Additionally this system extends through the Superconductivity Center to serve the adjacent Engineering Sciences Building. The Nitrogen gas piping system in the basement of the Superconductivity Center rises up to the 2nd floor of the building to cross the walkway leading to the Engineering Sciences Building. Good Remaining Useful Life 12 Years Nominal Useful Life: 30 Years Replacement Cost $10,200 Text6 N I T R O G E N F O R L A B S S U R V E Y P H O T O G R A P H S Nitrogen system (and Helium recovery system) tie-in in at north end of Materials Research Lab building. Nitrogen piping, at left PAGE 49

50 Text6 H E L I U M R E C O V E R Y S Y S T E M F O R L A B S A S S E S S M E N T D A T A Item ID The basement labs in this building have a helium recovery system. This is a system of metered piping to allow helium (used for cooling lab experiments) to be reclaimed and recycled for future use. Overall Condition Date Installed 1/1/1995 The helium reclamation system (and liquefication system) is located in the nearby Loomis Physics Lab (Bldg. 67). The piping extends through the adjacent Materials Research Lab to reach the Loomis Physics Lab. Additionally this system extends through the Superconductivity Center to serve the adjacent Engineering Sciences Building. The helium recovery piping system in the basement of the Superconductivity Center rises up to the 2nd floor of the building to cross the walkway leading to the Engineering Sciences Building. Several meters (appearing very similar to natural gas meters) are used in this building to keep track of how much helium is recovered. Helium supply is not piped into this building. Liquid helium is transported into this building in dewars for use in experiments. Several different piping materials appear to be in use for this system: copper (sweat), PVC, and braided-jacket flex hoses. Good Remaining Useful Life 20 Years Nominal Useful Life: 40 Years Replacement Cost $11, PAGE 50

51 Text6 H E L I U M R E C O V E R Y S Y S T E M F O R L A B S S U R V E Y P H O T O G R A P H S Helium recovery piping (third from left). Helium recovery system connection. Helium recovery piping. Helium recovery meter. Helium recovery meters. Helium recovery piping (and nitrogen supply piping) tie-in at north end of Materials Research Lab PAGE 51

52 Text106 F I R E P R O T E C T I O N D I S C I P L I N E R E P L A C E M E N T C O S T S U M M A R Y FIRE ALARM SYSTEM SPRINKLER SYSTEM STANDPIPE SYSTEM SYSTEM/COMPONENT Fire Alarm System Sprinklers Standpipes FIRE PROTECTION TOTAL % OF TOTAL POOR (1-5 YEARS) E X P E C T E D R E M A I N I N G S E R V I C E L I F E FAIR GOOD (5-10 YEARS) (10-20 YEARS) EXCELLENT (20+ YEARS) TOTAL 66,500 66, , ,200 14,000 14,000 66, , , PAGE 52

53 Text6 F I R E A L A R M S Y S T E M A S S E S S M E N T D A T A Overall Condition Date Installed 01/01/1995 Manufacturer Model Number Item ID Fire Alarm panel is Siemens XLS located in vestibule of main entry. Horns and strobes throughout appear to be located per code. Pull stations are located at building exits. Smoke detectors are located in elevator lobbies for elevator recall. Poor Remaining Useful Life 2 Years Nominal Useful Life: 20 Years Serial Number Recommendation - Siemens XLS not observed Replacement Cost $66, PAGE 53

54 Text6 F I R E A L A R M S Y S T E M S U R V E Y P H O T O G R A P H S FACP Strobe Pull station/horn Smoke Detector PAGE 54

55 Text6 S P R I N K L E R S A S S E S S M E N T D A T A Item ID This building is protected throughout by a wet pipe sprinkler system. This system originates in the mechanical room at the southeast corner of the basement. This system also feeds the standpipe system in the main stairs. There are sidewall sprinklers at the skylight openings on the 2nd and 3rd floors. There is a standpipe in the one stairway in this building. This standpipe ties into this wet pipe sprinkler system. Overall Condition Excellent Date Installed 1/1/1995 Remaining Useful Life 30 Years Nominal Useful Life: 50 Years Replacement Cost $396,200 Text6 S P R I N K L E R S S U R V E Y P H O T O G R A P H S Siamese connection at southeast corner of building. Sprinkler system connection to domestic water system (blue valves) in basement mechanical room. Sidewall sprinkler at second floor opening to third floor above PAGE 55

56 Text6 S T A N D P I P E S A S S E S S M E N T D A T A Item ID There is a standpipe located in the one stairway in this building. This standpipe ties into the wet pipe sprinkler system. Overall Condition Excellent Date Installed 1/1/1995 Remaining Useful Life 30 Years Nominal Useful Life: 50 Years Replacement Cost $14, PAGE 56

57 Text106 E L E C T R I C A L D I S C I P L I N E R E P L A C E M E N T C O S T S U M M A R Y MEDIUM VOLTAGE SYSTEM SUBSTATION LOW VOLTAGE SYSTEM EMERGENCY POWER SYSTEM GENERATOR INTERIOR LIGHTING EMERGENCY LIGHTING SYSTEM EXIT LIGHTING SYSTEM LIGHTING CONTROL SYSTEM EXTERIOR LIGHTING SYSTEM SYSTEM/COMPONENT Medium Voltage System Medium Voltage System - Substation Low Voltage System Emergency Power System Emergency Power System - Generator Interior Lighting System Emergency Lighting System Exit Lighting System Lighting Controls System Exterior Lighting System ELECTRICAL TOTAL % OF TOTAL POOR (1-5 YEARS) E X P E C T E D R E M A I N I N G S E R V I C E L I F E FAIR GOOD (5-10 YEARS) (10-20 YEARS) EXCELLENT (20+ YEARS) TOTAL 15,000 15,000 75,000 75, , ,800 19,300 19,300 56,500 56, , ,200 17,900 17,900 8,800 8,800 54,300 54,300 7,100 7,100 54, , , , PAGE 57

58 Text6 M E D I U M V O L T A G E S Y S T E M A S S E S S M E N T D A T A Overall Condition Item ID Date Installed 01/01/1995 Manufacturer Recommendation - A 5KV feeder ties this building to the campus utility loop. The feeder comes into the primary switch of an MV substation which provides power for the entire building. Excellent Remaining Useful Life 22 Years Nominal Useful Life: 40 Years Voltage Square D 4160V Replacement Cost $15,000 Text6 M E D I U M V O L T A G E S Y S T E M S U R V E Y P H O T O G R A P H S MV Sub PAGE 58

59 Text6 M E D I U M V O L T A G E S Y S T E M - S U B S T A T I O N A S S E S S M E N T D A T A Item ID A 5KV:208/120V substation with fixed circuit breakers provides power to the entire building. The distribution side with fixed circuit breakers serves panelboards on each floor. Meter: (read manually by staff each month) , 95-E1. Xfmr: 1000/1333KVA Serial # BO 5KV:208/120V Overall Condition Excellent Date Installed 01/01/1995 Remaining Useful Life 22 Years Nominal Useful Life: 40 Years Manufacturer Square D Size/Capacity 600A HP/kW 25KAIC Voltage 4160V Recommendation - Replacement Cost $75, PAGE 59

60 Text6 M E D I U M V O L T A G E S Y S T E M - S U B S T A T I O N S U R V E Y P H O T O G R A P H S MV Sub PAGE 60

61 Text6 L O W V O L T A G E S Y S T E M A S S E S S M E N T D A T A Overall Condition Item ID Date Installed 01/01/1995 Manufacturer Recommendation - One substation serves the entire building at 208/120V. Stacked electrical rooms distribute power to panelboards on each floor. The building has experienced some issues with tripping breakers, circuits overloaded. The problems were corrected with new surface mounted raceway and new circuits. Excellent Remaining Useful Life 22 Years Nominal Useful Life: 40 Years Square D Voltage 120/208V Replacement Cost $103,800 Text6 L O W V O L T A G E S Y S T E M S U R V E Y P H O T O G R A P H S LV Side Panels PAGE 61

62 Text6 E M E R G E N C Y P O W E R S Y S T E M A S S E S S M E N T D A T A Item ID The 30KW, diesel, 208V generator is located in a mechanical well with weatherproof enclosure. Although exhaust was piped through the mechanical room and up to the roof, it is right next to the AHU air intake. Any exhaust leaks cause problems with odor throughout the building. Testing is done after hours for this reason. The generator serves life safety lighting, sump pump, sewage ejector, FACP and Telecom receptacles. Overall Condition Fair Date Installed 01/01/1995 Remaining Useful Life 7 Years Nominal Useful Life: 25 Years Manufacturer Onan/Cummins Size/Capacity 30KW Voltage 208/120V Recommendation - Replacement Cost $19, PAGE 62

63 Text6 E M E R G E N C Y P O W E R S Y S T E M S U R V E Y P H O T O G R A P H S Generator Transfer Switch PAGE 63

64 Text6 E M E R G E N C Y P O W E R S Y S T E M - G E N E R A T O R A S S E S S M E N T D A T A Item ID A 30 KW diesel generator (with 175 gallon belly tank) provides power to life safety lighting, sump pump, sewage ejector, FACP and telecom receptacles for entire building. Generator is provided with weatherproof enclosure. Overall Condition Date Installed 01/01/1995 Equipment Tag Manufacturer Model Number Fair Remaining Useful Life 7 Years Nominal Useful Life: 25 Years Serial Number Size/Capacity Recommendation not observed Onan / Cummins 35DGB8 not observed 30KW Voltage 208/120V Replacement Cost $56,500 Location of exhaust outtake should be relocated away from mechanical air intakes. Comments Onan Transfer Switch: OT 125 #E A, 208V PAGE 64

65 Text6 E M E R G E N C Y P O W E R S Y S T E M - G E N E R A T O R S U R V E Y P H O T O G R A P H S Transfer Switch Generator PAGE 65

66 Text6 I N T E R I O R L I G H T I N G S Y S T E M A S S E S S M E N T D A T A Item ID All building lighting is efficient and in good condition, since being installed in x4 surface mounted parabolic fixture provide lighting in corridors and offices. Overall Condition Fair Date Installed 01/01/1995 Remaining Useful Life 7 Years Nominal Useful Life: 25 Years Recommendation - Replacement Cost $202,200 Text6 I N T E R I O R L I G H T I N G S Y S T E M S U R V E Y P H O T O G R A P H S Corridor Lighting 3rd Floor Lighting PAGE 66

67 Text6 E M E R G E N C Y L I G H T I N G S Y S T E M A S S E S S M E N T D A T A Item ID Emergency Lighting is provided by the 30KW generator for the whole building via the overhead lighting. Overall Condition Fair Date Installed 01/01/1995 Remaining Useful Life 7 Years Nominal Useful Life: 25 Years Recommendation - Replacement Cost $17, PAGE 67

68 Text6 E X I T L I G H T I N G S Y S T E M A S S E S S M E N T D A T A Item ID Though installed in 1995, the exit lighting has not been upgraded to the LED university standard. Overall Condition Fair Date Installed 01/01/1995 Remaining Useful Life 7 Years Nominal Useful Life: 25 Years Recommendation - Replacement Cost $8,800 Text6 E X I T L I G H T I N G S Y S T E M S U R V E Y P H O T O G R A P H S Exit Sign PAGE 68

69 Text6 L I G H T I N G C O N T R O L S S Y S T E M A S S E S S M E N T D A T A Item ID There is no lighting control system for this building. All spaces have manual on/off light switches. Overall Condition Poor Date Installed 01/01/1995 Remaining Useful Life 2 Years Nominal Useful Life: 20 Years Recommendation Upgrade to automatic controls for interior lighting (occupancy/vacancy sensors or central control panels). Replacement Cost $54, PAGE 69

70 Text6 E X T E R I O R L I G H T I N G S Y S T E M A S S E S S M E N T D A T A Item ID This building has a Square D contactor that serves adjacent campus site lighting fixtures, photocell on, time clock off. Lighting at entries appears to be CFL lamps. Overall Condition Fair Date Installed 01/01/1995 Remaining Useful Life 7 Years Nominal Useful Life: 25 Years Recommendation - Replacement Cost $7,100 Text6 E X T E R I O R L I G H T I N G S Y S T E M S U R V E Y P H O T O G R A P H S Exterior Lighting PAGE 70

71 Text106 C O M M U N I C A T I O N S D I S C I P L I N E R E P L A C E M E N T C O S T S U M M A R Y DATA SYSTEM CCTV SYSTEM SYSTEM/COMPONENT Communication Infrastructure System Security CCTV System COMMUNICATIONS TOTAL % OF TOTAL POOR (1-5 YEARS) E X P E C T E D R E M A I N I N G S E R V I C E L I F E FAIR GOOD (5-10 YEARS) (10-20 YEARS) EXCELLENT (20+ YEARS) TOTAL 123, ,900 35,000 35,000 35, , , PAGE 71

72 Text6 C O M M U N I C A T I O N I N F R A S T R U C T U R E S Y S T E M A S S E S S M E N T D A T A Item ID The building is fed with 24 strands of single mode fiber and 300 copper pairs with each pair grounded and individually protected by a fuse/surge arrestor. Fiber and copper originate from Node #1. The building IDF is located in room 0001 on the lower level. Fiber distributes radially from the building IDF to hub rooms (telecommunication rooms) to within 100 meters of end-use equipment and lands at rack mounted fiber switches within the hub room. Overall Condition Date Installed UIUC network upgrade complete (date range 2006 to 2012) Comments There are 3 hub rooms located within the building. Hub rooms are stacked and serve the whole building. Typically, each hub room is equipped with 1 free standing rack, wire management, and overhead basket cable tray. The hub rooms have smoke and sprinkler protection. The rooms do not have dedicated cooling systems but are conditioned/exhausted by the base building system. Outlet standards typically have 1"C stubbed to cable management. Standard outlet consists of two network cables and two data jacks. Station cable consists of Cat 5 and Cat 6 (Mohawk). The building is typically equipped with WIFI throughout (coverage not noted). Good Remaining Useful Life 20 Years Nominal Useful Life: 20 Years Replacement Cost $123,900 Hub rooms were warm. Text6 C O M M U N I C A T I O N I N F R A S T R U C T U R E S Y S T E M S U R V E Y P H O T O G R A P H S Bldg 95 IDF Typical hub room racks Copper terminations in hub room HA PAGE 72