Unidirectional Hydrant Flushing and Repair PWS EA and ALC 24NOV25.pdf

3.3 Inspection of required main line valves for, accessibility, and functionality in accordance with the AWWA M-44 manual.

3.4 Operation of each located required main line valve to insure its ability to operate and fully “close” upon demand. Adherence to the AWWA M-44.

3.5 Fire hydrant, main line valve and flushing sequencing information in an Excel Spreadsheet.

4. Backflow Prevention Devices

4.1 The Contractor shall provide all personnel, equipment, supplies, transportation, tools, materials, supervision, and other items and non-personal services necessary to perform inspection and testing of Backflow Prevention Devices as defined in this Performance Work Statement (PWS).

4.2 Inspection and testing of Backflow Prevention Devices (BFPD) for evidence of dripping, leaking in order to protect drinking water supply and quality for human consumption.

4.3 The contractor will coordinate temporary water shutdowns to equipment or buildings with the COR (Contracting Officer’s Representative)

4.4 The contractor will perform annual compliance inspection, testing, and certification of each backflow prevention device into an authorized Cross Connection Control Management Program.

4.5 A copy of the certification shall be posted at all backflow prevention devices

4.6 The contractor shall not interfere with the normal operations of the current property owner to the extent possible. Contractor must leave all work areas clean and free of debris. Restore any site damages to the mechanical room and to the exterior of the building to its original forms.

4.7 Emergency Service & Repair

The contractor will perform annual maintenance and repairs. Backflow device repairs for failing devices shall be repaired and retested at date and time of original scheduled testing event. Contractor to respond to any Complaint/Calls regarding a problem/Leaking Backflow Assembly. Repairs and Re- Certification shall be completed the same time as call in.

4.8 Installer’s Qualification: Qualified firms that are approved, authorized, and licensed by the Maryland State Board of Plumbing. Master Plumbers must be used and be allowed to install products devices, issue certifications, and provide a manufacturer’s warranty. The firm must also be able to provide for testing of mechanical and electrical equipment.

4.9 Backflow Device Recertification:

The contractor will recertify backflow devices annually –

Any additions or subtractions to current list will be in writing and put in COR file

E-2100-5 Mech Room BYPASS 1" RPZ E-2100-6 Mech Room BYPASS 1" RPZ E-2100-7 Room 3106 1/2" RPZ E-2100-8 Lab 2302 1" RPZ E-2101 Water heater room 1" RPZ E-2101-1 Water heater room 1" RPZ E-2101-2 Water heater room 2" RPZ E-2101-3 Mech Room 3/4" RPZ E-2101-4 Mech Room 3/4" RPZ E-2162 Warehouse.Behind furnace.Per custodian, bldg no longer in use 1 1/2" RPZ E-2169 Boiler room 1 1/2" RPZ E-2172 Ice house at marina. Bldg lock. No access 3/4" RPZ E-2174 Mens room. Pad lock on door . No Contact 1 1/2" RPZ E-2174-1 Shower room 3/4" RPZ E-2187 Lab/workshop room, back corner. Main water 1 1/2" RPZ E-2187-1 Exterior boiler rm. Makeup water 3/4" DC E-2188 Warehouse. Main Water 2" RPZ E-2188-1 Mechanical rm.Boiler makeup. Main water 2" RPZ E-2194 Mech Room 2" RPZ E-2194-1 Mech Room 1" RPZ E-2200 Outside Mech Room 1 1/2" RPZ E-2330 Rear Mech Room. Main water 1 1/2" RPZ E-2390 Mech Room 2" RPZ E-2400 Sprinkler room, Bldg empty 3" RPZ E-2400-1 Break room. Bldg locked. On demo list 1 1/4" RPZ E-2433 Electrical room. Main water 2" RPZ E-2800 Mech Room 3/4" RPZ E-2800-1 Mech Room 4" RPZ E-2850-1 Mech Room 8" RPZ E-2850-2 Mech Room 8" RPZ E-2850-3 Mech Room 4" RPZ E-2850-4 Mech/Boiler Plant 2" RPZ E-2850-5 Mech/Boiler Plant 2" RPZ E-2850-6 Mech/Boiler Plant 2" RPZ E-2850-7 Mech Room 2" RPZ E-2851-1 Mech/Boiler Plant 6" RPZ E-2851-2 Mech/Boiler Plant 6" RPZ E-2851-3 Mech/Boiler Plant 2" RPZ E-2851-4 Mech/Boiler Plant 2" RPZ E-2851-5 Mech/Boiler Plant 2" RPZ E-2851-6 Mech/Boiler Plant 2" RPZ E-2900 4th Floor, F building,Mech room. Domestic cold 2 1/2" RPZ E-2900-1 Mech room,4th floor.South side,next to cat walk door.Domestic cold 6" RPZ E-2900-10 Station E-3G. E-3 Mech Room. Lab 2302.Lab hot water 3/4" DC E-2900-11 Station E-3L. E-3 Mech Room. Lab 2303 3/4" DC E-2900-12 Station E-3M. E-3 Mech Room. Lab 2305.Lab hot water 3/4" DC E-2900-13 Mech Room E-3000 1 1/2" DC E-2900-14 Mech Room E-3000 1 1/4" DC E-2900-15 C-5000 Mech Room 1" RPZ E-2900-16 B-4000 Mech Room 1" RPZ E-2900-17 Cup Blvd. 1st floor 4" RPZ

E-2900-2 Mech room,4th floor.South side. Next to cat walk door 6" RPZ E-2900-3 Station E-3B, E-3 Mechanical. Room 2905 1/2" DC E-2900-4 Station 3-C, E-3 Mech Room. Lab 2907 1/2" DC E-2900-5 Station E-3F. E-3 Mech Room. Lab 2915 1/2" DC E-2900-6 Station E-3K. E-3 Mechanical 1/2" DC E-2900-7 Station E-3A.E-3 Mech Room. Lab 2903. Lab hot water 1/2" DC E-2900-8 Station E-3N. E-3 Mech Room. Lab 2311. Lab hot water 3/4" DC E-2900-9 Station E-30. E-3 Mechancial room. Lab 2315.Lab hot water 3/4" DC E-2900-B 4th floor mech room. Humidifier condensate 1" RPZ E-2901 Mech Room. Cup Blvd. Bypass 8" RPZ E-2901-1 Mech Room 8" RPZ E-2901-2 3rd Floor Mech Room 4" RPZ E-2901-3 2901 Cup Blvd. Mech Room. Bypass 4" RPZ E-2901-4 Mech Room 4" RPZ E-3007 In closet,to right of main entrance.Bldg next to new hospital Bldg 2100 1 1/2" RPZ E-3081 Mech Room BypassWater off to bldg. On demo list 6" RPZ E-3081-1 Mech Room Water off to bldg. 6" RPZ E-3081-2 Mech Room Water off to bldg. 3/4" RPZ E-3081-3 Mech Room. Chill water makeup Water off to bldg. On demo list 3/4" RPZ

E-3090 Mechanical/water room by loading.Bldg no longer in operation.On demo list 4" RPZ

E-3100 Boiler room next to bay door 4" RPZ E-3100-1 Boiler room next to bay door Building 4" RPZ E-3100-2 Mech Room Building no longer in operation.Scheduled for demo 2" RPZ

E-3100-3 Mech Room.Make up Building no longer in operation.Scheduled for demo 1" RPZ

E-3100-4 Mech Room Building no longer in operation.Scheduled for demo 3/4" RPZ E-3100-5 Mech Room Building no longer in operation.Scheduled for demo 3/4" RPZ E-3100-6 Mech Room Building no longer in operation.Scheduled for demo 3/4" RPZ E-3100-7 Mech Room Building no longer in operation.Scheduled for demo 3/4" RPZ E-3101 Mech rm next to condensate pump. Bldg empty 2" RPZ E-3103 Outside electric water heater room 1 1/2" RPZ E-3106 Communication closet 2" RPZ E-3109 Mech room next to water heater 2" RPZ E-3150-1 Interstitial space between 2nd & 3rd floor 1/2" RPZ E-3150-10 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ E-3150-11 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-12 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-13 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ E-3150-14 Interstitial space between 2nd & 3rd floor 1/2" RPZ E-3150-15 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ E-3150-16 Interstitial space between 2nd & 3rd floor 1/2" RPZ E-3150-17 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ E-3150-18 Interstitial space between 2nd & 3rd floor 1/2" RPZ E-3150-19 Interstitial space between 2nd & 3rd floor 1" RPZ E-3150-2 Interstitial space between 2nd & 3rd floor 1/2" RPZ E-3150-20 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ E-3150-21 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-22 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ E-3150-23 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-24 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ

E-3150-25 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-26 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ E-3150-27 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-28 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ E-3150-29 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-3 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ E-3150-30 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-31 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-32 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ E-3150-33 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-34 1st floor Mech RoomBYPASS 2" RPZ E-3150-35 1st floor Mech Room 3" RPZ E-3150-36 1st floor Mech Room 1 1/2" RPZ E-3150-37 3rd Floor mech rm.Behind tank 1" RPZ E-3150-38 1st floor crawl space.Behind mech rm. Bypass 4" RPZ E-3150-39 1st Floor Tank room 3" RPZ E-3150-4 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-40 Mech Room 1 1/4" RPZ E-3150-41 1st Floor crawl space Bypass 4" RPZ E-3150-5 Interstitial space between 2nd & 3rd floor 1 1/2" RPZ E-3150-6 Interstitial space between 2nd & 3rd floor 1/2" RPZ E-3150-7 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-8 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3150-9 Interstitial space between 2nd & 3rd floor 3/4" RPZ E-3160 Mech Room, Water off to bldg 4" RPZ E-3160-1 Mech Room. Water off to bldg 3/4" RPZ E-3161 Closet in hallway next to ladies room. Bldg empty 2" RPZ E-3161-1 Mech Room-Outside.Bldg no longer in service 3/4" RPZ E-3240 Mech Room.Water off to bldg 2" RPZ E-3240-1 Mech Room. Water off to bldg 3/4" RPZ E-3302 Boiler room, No water 4" RPZ E-3312-1 Make-up Water 1" RPZ E-3312-4 Boiler room 2" RPZ E-3312-5 Boiler plant. 2" RPZ E-3312-6 Boiler plant. Main water 4" RPZ E-3320 In office behind break room 3" RPZ E-3326 Conference room 1 1/2" RPZ E-3330 Under stairwell. South 4" DC E-3330-1 Mech Room 1" RPZ E-3330-2 Mech Room. Out of service 2" RPZ E-3330-3 Main Under staircase. Bypass 4" RPZ E-3330-4 Mechanical Rm. Tower makeup.Out of service 2" RPZ E-3330-5 Mech room. Chiller makeup line 3/4" RPZ E-3330-6 Sprinkler room.Basement.Across from mens room 4" RPZ E-3344 Main next to water heater.Bldg no longer in use 1 1/2" RPZ E-3348 Mens Bathroom. Main water 1" RPZ E-3400-10 1st Floor Mech Room on rack. Chill water makeup 1 1/4" RPZ E-3400-11 1st Floor Mech Room on rack. Heating water makeup 1" RPZ E-3400-12 Penthouse Mech Room Domestic hot water Room 310 3/4" RPZ E-3400-13 Penthouse Mech Room Domestic hot water Room 310 3/4" RPZ

E-3400-14 Penthouse mechanical rm.serving eye washes Room 310.Tempered water 2" RPZ

E-3400-15 Penthouse Mech Room makeup to RO, DI water 2" RPZ E-3400-16 Penthouse Mech Room.make up RO,DI water 2" RPZ E-3400-17 Penthouse Mech Room makeup vacuum pump 2" RPZ E-3400-18 Penthouse Mech Room.Domestic cold to Lab 310 3/4" RPZ E-3400-19 Penthouse Mech Room. Domestic hot to Lab 310 3/4" RPZ E-3400-20 Mech rm 1st floor.Water to screw compressor 3/4" RPZ E-3400-21 Penthouse Mech Room.Condenser water makeup 1 1/2" RPZ E-3400-22 Mech Room 1 1/2" RPZ E-3400-23 Mech Room M-300 1 1/2" RPZ E-3400-3 Mech Room 6" RPZ E-3400-4 Mech Room. Bypass 6" RPZ E-3400-5 Mech Room. Lab make up 3" RPZ E-3400-6 Mech Room. Lab make up. Bypass 3" RPZ E-3400-7 Mech Room.Chiller make up 3" RPZ E-3400-8 Mech Room. Chiller make up. 3" RPZ E-3400-9 1st Floor Mech Room on left by entrance to chiller room 508 1" RPZ E3401-1 2nd floor Mech Room 3/4" RPZ E-3401-10 Mech Room 2" RPZ E-3401-11 Mech Room 2" RPZ E-3401-2 2nd floor Mech Room 3/4" RPZ E-3401-3 2nd floor Mech Room 1 1/2" RPZ E-3401-4 2nd floor Mech Room 1 1/2" RPZ E-3401-5 2nd floor Mech Room 3/4" RPZ E-3401-6 Exterior Mech Room 4" RPZ E-3401-7 Exterior Mech Room. Bypass 4" RPZ E-3401-7 Exterior Mech Room. Bypass 4" RPZ E-3401-8 Mech Room 2" RPZ E-3401-9 Mech Room 2" RPZ E-3462 Interior mechanical/sprinkler room 2 1/2" RPZ E-3462-1 Next to sprinkler room 1" RPZ E-3510-1A Building main service connection, Mech room 1 3" RPZ E-3510-2 Mech Room 3/4" RPZ E3512-1 Main-Steam room. Water off 2" RPZ E-3512-2 Boiler room. North wall. Water off 2" RPZ E-3512-3 Boiler room. North wall. Water off 2" RPZ E-3512-4 Mech Room, Water off 3/4" RPZ E-3512-5 Chiller water-Steam room 3/4" RPZ E3516-3 Buildings filtration system makeup line 1" RPZ E-3524 Rear Mechanical Room 2" RPZ E-3524-2 Rear Mechanical Room 3" RPZ E-3524-3 Mech Room 3/4" RPZ E-3526 Mech Room to right of door 2" RPZ E-3548 Janitor closer 1 1/2" RPZ E-3549-10 Back outside mech room. Bypass 3/4" RPZ E-3549-11 Back outside mech room 2" RPZ E-3549-12 Back outside mech room. Bypass 3/4" RPZ E-3549-2 Building main service connection.C Bldg Mech rm. Bypass 6" RPZ E-3549-3 Building main service connection. C Bldg Mech room 6" RPZ E-3549-4 Mech Room.Back of bldg. Left of entrance 3/4" RPZ

E-3549-5 Mech Room.Back of bldg. Left of entrance 2" RPZ E-3549-6 Mech Room. Back of bldg. Left of entrance 2" RPZ E3549-7 Back Mech Room. In front of expansion tanks 2" RPZ E-3549-8 Back Mech Room.Infront of expansion tanks. Bypass 3/4" RPZ E-3549-9 Back outside mech room 2" RPZ E-3550 Storage bay. First bay door 2" RPZ E-3551 Janitor closet 1 1/2" RPZ E-3552 Main. North corner of building 1 1/2" RPZ E-3554 Bay door 1 1/2" RPZ E-3566 Next to decon tank 2" RPZ E-3566-1 Left tank pit in front of water heater 1 1/2" RPZ E-3580 Mech Room 2" RPZ E-3580-1 Mech Room 3" RPZ E-3607 Conference room closet. Water heater closet 1 1/2" RPZ E-3612-1 Southwest corner of building 2" RPZ E-3615 Bathroom stall 1 1/2" RPZ E-3615-1 Breakroom,behind washer & dryer 1" RPZ E-3630 Warehouse to right of entrance 3/4" RPZ E-3724-1 4" Galvanized back corner of bldg. Mech Room 4" RPZ E-3724-2 Equipment room 1 1/4" RPZ E-3726-1 Mech Room. Main. 2 1/2" RPZ E-3728 Mechanical/steam room 2" RPZ E-3728 Mechanical/steam room 2" RPZ E-3830-1 Bldg main service connection.Office. Drain not piped out. In chase 2" RPZ E-3831 Mech Room 2" RPZ E-3832-1 Bldg main service connection. Mech Room 2" RPZ E-3832-2 Mech Room (on top) 2" RPZ E-3832-3 Mech Room (on top) 2" RPZ E-3832-4 Mech Room (on bottom) Bypass 1" RPZ E-3832-5 Mech Room. Bypass 1" RPZ E-3832-6 Lab closet. Chemical feed 1" RPZ E-3835-2 Bldg main service connection. Mech Room 3" RPZ E-3835-3 Front exterior Mech Room 2 1/2" RPZ E-3835-4 Basement Mech Room 2" RPZ E-3836 Mechanical/Boiler room 1 1/2" RPZ E-3844 Mech Room. Bypass 3" RPZ BYPASS E-3844-1 Mech Room 3" RPZ E-3844-2 Mech Room 2" RPZ E-3844-3 Mech Room. Bypass 4" RPZ E-3844-4 Mech Room 1" RPZ E-3844-5 Mech Room 4" RPZ E-3853-WWTP Main basement 1 1/4" RPZ E-3854-WWTP Main to right of entrance door 1 1/2" RPZ E-3857 Main in work shop to right of entrance 2 1/2" RPZ E-3861-1 WWTP To right of entrance door.Storage room wall (Blower Room) 1 1/2" RPZ E-3861-2 WWTP To right of entrance door.Storage room (Blower room) 1 1/2" RPZ E-3861-3 WWTP Chemical feed between tanks (Blower room) 1" RPZ E-3928-1 Mech Room left wall 1 1/2" RPZ E3928-2 Explosives destruction system.makeup hose line(inside)Side mech rm 1 1/2" E-3931-1 Mech Room.Outside wall 1 1/4" RPZ E-3934-1 Warehouse Potable hose bibb(Inside) Main water 3/4" RPZ

E-3942 Mens room 1 1/2" RPZ E-3947-1 Main 2" back bay garage door. Closet 2" RPZ E-3947-2 Warehouse. Closet 1" RPZ E-3948 Mens room behind showers 2" RPZ E-3949 Hallway closet. Main water 1 1/2" RPZ E-3949-1 Mech Room/boiler feed.Boiler room exterior door 3/4" RPZ E3950 WWTP Rear wall behind entrance door 1 1/2" RPZ E3950 WWTP To right of entrance door 2" RPZ E-3950A Exterior water room. Non potable 6" RPZ E-3956-1 WWTP Boiler makeup in boiler room 1 1/2" RPZ E-3956-1 WWTP Boiler makeup in boiler room 3/4" RPZ E-4010 Convenience store rear storage Bypass 1" RPZ E-4010-1 Convenience store rear storage 2" RPZ E-4039 Exterior Mech Room 2" RPZ E-4040 Exterior Mech Room 1 1/2" RPZ E-4060 Sprinkler room 3/4" RPZ E-4081 Mech Room 3" RPZ E-4081-1 Mech Room. RPZ on top. Bypass 3" RPZ E-4081-2 Mech Room. RPZ on bottom 3" RPZ E-4081-3 Mech Room 1" RPZ E-4081-4 Mech Room 1" RPZ E-4081-5 Mech Room 1 1/2" RPZ E-4110-1 Mech Room BYPASS 2 1/2" RPZ E-4110-2 Mech Room 2 1/2" RPZ E-4110-4 Mech Room 3/4" RPZ E-4110-5 Mech Room 3/4" RPZ E-4110-6 Mech Room 3/4" RPZ E-4110-7 Mech Room 3/4" RPZ E-4128 Mech Room 2" RPZ E-4140 Mech Room 3" RPZ E-4160-1 Boiler room 3" RPZ E-4160-2 Boiler room BYPASS 3" RPZ E-4160-3 Boiler room 2" RPZ E-4160-4 Boiler room 3/4" RPZ E-4210-1 Exterior Mech Room 2" RPZ E-4210-3 Boiler room 1 1/2" RPZ E-4215 Exterior mech room, downstairs. Make up water 3/4" RPZ E-4215-1 Mech Room 3" RPZ E-4220 Exterior Mech Room 2" RPZ E-4220-1 Heating make up. Mech Room 3/4" RPZ E-4220-2 Heating make up. Mech Room 3/4" RPZ E-4221 Exterior Mech Room 2" RPZ E-4222 4" built into chase. Closet next to laundry room 4" RPZ E-4222-1 Mech Room 3/4" RPZ E-4223-1 Building main service connection. Mech room 2" RPZ E-4223-2 Mech Room. Main water 3/4" RPZ E-4224 Mech Room 2" RPZ E-4225-2 Building main service connection. Mech Room 3" DC E-4225-3 Mech Room.See bldg 4221 for access 2 1/2" RPZ E-4225-4 Mech Room. Makeup 3/4" RPZ E-4225-5 Mech Room. Makeup water 1 1/4" RPZ

E-4227 Exterior Mech Room 4" RPZ E-4227-2 Mech Room. Heating makeup 3/4" RPZ E-4228-1 Exterior Mech Room 2" RPZ E-4229 Mech Room 4" RPZ E-4229-2 Mech Room 3/4" RPZ E-4230 Mech Room. Make up water 1" RPZ E-4230-2 Mech Room. Domestic water feeds 4225 3" RPZ E-4301 Mech Room 6" RPZ E-4301-1 Mech Room BYPASS 4" RPZ E-4301-2 Mech Room. Chiller make up 1 1/2" RPZ E-4301-3 Mech Room 1" RPZ E-4301-4 Mech Room,boiler makeup water 1" RPZ E-4305-1 Mech Room 2 1/2" RPZ E-4305-4 Mech Room.Cold water make up.Hot water make up 1" RPZ E-4306 Truck Bay 2" RPZ E-4405 South wall 2" RPZ E-4430 Fire suppression system. Mens bathroom 4" DC E-4430-1 Mech Room. Bldg vacant 2'' RPZ E-4435 Exterior Mech Room 2" RPZ E-4445 Next to front door entrance 1" RPZ E-4460 Fire suppression system 4" SC E-4465-1 Office Sign on door Do Not Enter-Unsafe 2" RPZ E-4465-2 Office Sign on door Do Not Enter-Unsafe 3/4" RPZ E-4516-2 Sprinkler room GP STRATEGIES M-93 2" RPZ E-4516-3 Exterior Mech Room 3" RPZ E-4516-4 Boiler room. South wall. Make up water. GP STRATEGIES M-93 3/4" RPZ

E-4516-5 North wall, mech room where chill water pumps are at.GP STRATEGIES M-93 3/4" RPZ

E-4517 Exterior Mech Room 2" RPZ E-4524 Front closet 2" RPZ E-4525 Utility room 1" RPZ E-4526 Exterior Mech Room 1 1/2" RPZ E-4527 2" line in chase by office 36-110. front office 2" RPZ E-4535 Janitor closet 3/4" RPZ E-4536 Janitor closet 3/4" RPZ E-4585 2" Line in mens room northwing 2" RPZ E-4585-1 Mech Room 2" RPZ E-4585-2 Mech Room 3/4" RPZ E-4585-3 Mech Room 1" RPZ E-4585-4 Mech Room 2" RPZ E-4586 Next to mens room in hallway behind box out 1 1/2" RPZ E-4588-1 Mech Room 1 1/2" RPZ E-4594 Data / sprinkler room. Water off. 2" RPZ E-4595 Interior Data/Sprinkler room. Trailer empty 2" RPZ E-4620 Mech Room 2" RPZ E-4620-1 Mech room in rear of bldg(Chapel) 1" RPZ E-4620-2 Mech Room(Chapel) 1" RPZ E-4655-1 Pump room to pool. Water off to pool house 1 1/2" RPZ E-4810 Mens Bathroom. Main water 1 1/2" RPZ E-4811 Mens bathroom. Behind access panel. Main water 1 1/2" RPZ E-4902-1 Mech Room Water off.On demo list 1/2" RPZ

E-4913 Mens bathroom. Capa Field. Door barricaded from the inside 2" RPZ E-5002 Bank. Basement next to door. Main water 2" RPZ E-5014 Mech Room 1 1/2" RPZ E-5027 Closet. Corner of bldg near steam pit 2" RPZ E-5057 Bathroom. Bldg empty 1" RPZ E-5100 Mech room behind chemical tanks 2" RPZ E-5100-1 Mech Room. Main Water 4" RPZ E-5100-2 Mech Room BYPASS. Main water 3" RPZ E-5100-3 Mech Room 2" RPZ E-5100-4 Lab #2. Need escort 1 1/4" RPZ E-5100-4 Lab #2. Need escort 1" RPZ E-5103 Mech Room 2 1/2" RPZ E-5106 Breakroom 2" RPZ E-5106-1 Heat exchanger room. In mens room 3/4" RPZ E-5106-2 Mech Room 3" RPZ E-5126-1 Boiler plant. Behind 8" backflow 2" RPZ E-5126-2 Boiler plant. Next to material room.Non potable water 8" RPZ E-5126-3 Boiler room BYPASS Non potable water 6" RPZ E-5126-4 Back wall behind boilers Non potable water 6" RPZ E-5140 Exterior sprinkle room 2" RPZ E-5141 Mens bathroom. Bldg empty 1" RPZ E-5146 Boiler room 1 1/4" RPZ E-5158 Sprinkler room #38 2" RPZ E-5165 Break room. Kitchen pantry 1 1/4" RPZ E-5179-3 Warehouse next to shower 1 1/2" RPZ E-5180 Fire truck bay. Main water 1 1/2" RPZ E-5183 Basement mech rm next to condensate pump 2" RPZ E-5183-1 Mech Room 3/4" RPZ E-5185 Tool room 6" RPZ

E-5232 Office on north wall behind cover.2nd cubical behind plywood.Bldg empty 2" RPZ

E-5233 Janitors closet. Main water 1 1/2" RPZ E-5234-1 Jantor closet 1 1/2" RPZ E-5234-2 Mech Room 1" RPZ E-5236 Basement mech rm next to pumps 2" RPZ E-5236-1 Mech room on wall across from double doors. Basement 2" RPZ E-5240 Water heater closet. Breakroom closet 2" RPZ E-5240-1 Mech Room above water heater 1/2" RPZ E-5265 Mech Room Main water. Bldg not occupied 4" RPZ E-5307 Mens room. Bldg empty 1" RPZ E-5352 Front west corner of bldg.Main water.Behind bathroom 2" RPZ E-5354 Next to bay door 4" RPZ E-5357 Shop wall down from restroom 1" RPZ E-5360 Mechanical shop 4" RPZ E-5360-1 West corner next to bathroom 4" RPZ E-5365 Next to entrance door 2 1/2" RPZ E-5390 Mech Room . Main water 2 1/2" RPZ E-5390-1 Mech Room. Make up water 3/4" RPZ E-5430 Next to bay door. Bldg empty 3" RPZ E-5554 Mens bathroom in corner. Bldg on demo list 2" RPZ E-5560 Mech Room 1 1/2" RPZ

E-5560-2 Mech Room 1" RPZ E-5641 Lab / Office 2" RPZ E-5642 Rear of bldg in boiler hut 1" RPZ E-5660 Under trailer 3/4" RPZ E-5664 North end warehouse 2" RPZ E-5664-1 By offices, ice maker area 1" RPZ E-5685 Back right corner next to roll up door. Trailer empty 2" RPZ E-5703 In warehouse next to utility sink 1" RPZ E5707 Next to bathroom, Bldg empty 2" RPZ E-5800 Men's room. Exterior wall. Main water 2" RPZ E-5800-1 Mech Room. Heat makeup 1/2" RPZ E-5800-2 Lab above sink 3/4" RPZ E-5803 Exterior Mech Room 2 1/2" RPZ E-5803-1 Mech Room 3/4" RPZ E-5828 Mech rm to right of bay doorBYPASS 2" RPZ E-5828-1 Mech rm to right of bay door 2" RPZ E-5828-2 Boiler room. 3/4" RPZ E-5828-3 Boiler room 1 1/4" RPZ E-5830-1 Warehouse 2" RPZ E-5830-2 Warehouse 4" DC E-5840 Mens restroom. Bldg empty 3" RPZ E-5863 Water heater room 1 1/2" RPZ E-5864 Left end of building. Room 8 2" RPZ E-5866 In eye wash room. First double door bay 2" RPZ E-5884 Right of the building entrance 1 1/2" RPZ E-5951-1 Mens restroom. 2nd door. Well line 3" RPZ E-5951-2 Basement. Outside mens room. Main water 2 1/2" RPZ E-5951-3 Upstairs Mech Room/boiler room. Boiler makeup 3/4" RPZ E-5951-4 Upstairs Mech Room.Chiller makeup 3/4" RPZ E-6110-1 Boiler room. Water off 3/4" RPZ E-6110-2 Mech Room. Water off 4" RPZ E-6810-1 Mens bathroom/East. Water off for renovation 2" RPZ E-6810-4 Mens bathroom/West Water off for renovation 2" RPZ E-6810-5 Boiler room. Water off for renovation 3/4" RPZ E-6810-5 Boiler room. Water off for renovation 3/4" RPZ E-6810-6 Boiler room. Make up water 3/4" RPZ E-6811-1 Mens room 2" RPZ E-6811-2 Mech Room 2" RPZ E-6811-3 Boiler room 3/4" RPZ E-6812 Mech Room 2" RPZ E-6814 Shower room 1" RPZ E-7010 Bathroom 3/4" RPZ E-Marina 2173 Bulkhead. Water off 1" RPZ EX-1260G-01 Irrigation System 3/4" VB EX-1260G-02 Irrigation System 3/4" VB EX-1260G-03 Irrigation System 3/4" VB EX-1260G-04 Irrigation System 3/4" VB EX-1260G-05 Irrigation System 3/4" VB EX-1260G-06 Irrigation System 3/4" VB EX-1260G-07 Irrigation System 3/4" VB

601-46 Closet in electric vault.Main water feed for bldg 3" RPZ 601-47 Closet in electric vault.Firesystem 6" DC

6. SEQUENCING ACTION: Before starting field work, a Standard Operating Procedure of action sequencing for the flushing activity shall be set. Contingencies like mitigation of reduced fire flows in critical areas (i.e. medical facilities, schools, etc.) must be included.

6.1 This work may require flushing to be performed after regular duty hours (0700-1600) to not interrupt missions with low water pressure.

6.2 This may require weekend and or holiday work if an emergency arises.

7. CUSTOMER NOTIFICATION

7.1 CUSTOMER BILLING MAILER: CONTRACTOR will assist develop a letter which briefly explains the Unidirectional Water Main Flushing program which must be approved by COR.

7.2 MEDIA NOTIFICATION: CONTRACTOR will develop a press release to explain the Unidirectional Water Main Flushing program and affected areas. APG Public Affairs Office will send the press releases. This type of customer notification greatly reduces the number of customer complaints about discolored water.

8. FLUSHING

8.1 VALVES: To increase the water main velocity without opening additional hydrants (to conserve water), specific valves will be closed prior to flushing as per APG’s Unidirectional Plan. These valves will be recorded to insure that all valves are re-opened at the end of each day. A Standard Operating Procedure for valve operations will be included with the plan.

8.2 PRESSURE READINGS: CONTRACTOR will use accurate pressure gauges to determine that the required velocities are achieved during the flushing process. CONTRACTOR shall provide recently-dated proof that the pressure gauges used have been calibrated.

5.The Contractor will not be held responsible for possible valve or hydrant failures during operation, damage done to water system during water main flushing( i.e water leaks,discolored water, turbidity etc.), or possible damage to APG's individual water customer unless unsatisfactory or neglectful operations by

CONTRACTOR.