A07_-_Sample_Projects_from_Prior_Contracts_(Amendment_0002_attachment).pdf

Sample Projects from Prior Contracts – for informational purposes only.

SCOPE OF WORK

1. Description of Work: This scope of work is to resurface Raritan Road, from Boothby Hill Ave and Aberdeen Blvd The road total area is approximately 5236 feet long and width of 44 feet (varies). Also install two sidewalks across the swale at building 3200.

Repair curbs at building 30.

General Requirements: N/A

Period of Performance: Barring any contingencies that arise during construction, the Government requires this project be completed within 180 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is a road.

Hazardous Material: N/A

Tasks:

1. Civil A. Contractor shall mill three inches of asphalt.

B. Contractor shall repair and level and place three inches of asphalt (note: one inch surface fine and two inches of surface fine.). Place new asphalt to same level as original.

C. Contractor shall stripe center/edge lines of the roads.

D. Contractor shall install two sidewalk across the swale at building 3200. This includes the water piping system to allow water to flow.

E. For: Building 30:

i. Remove and Replace 430 feet of curb.

F. For 3300:

i. Remove asphalt side walk (note: Thicker than normal due to overlay.) and replace with six foot wide by 610 feet concrete sidewalk.

ii. Install raised crosswalk with brick stamped concrete across Frankford Street, to connect the Gym to the running track access path. This is to be 16 feet wide by 70 feet wide across the road.

iii. Widen the existing asphalt access path to the running track starting with a matching point of the new crosswalk with an “S” curve tieing into the path thirty feet from the sidewalk.

iv. Stripe the parking lot. Cross hatch one parking space on each side of the new crosswalk.

Important Services and Permit Requirements: N/A

Submittals with Proposal:

1. Cost Proposal

Submittals during the Contract: None

Attachments to this SOW: Sketch Opsec

1. Description of Work: This scope of work is to resurface an existing parking and provide line striping for parking. The total area of the lot is approximately 120 feet by 130 feet.

General Requirements: N/A

Period of Performance: Barring any contingencies that arise during construction, the Government requires this project be completed within 180 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is a parking lot.

Hazardous Material: N/A

Tasks:

1. Civil A. Contractor shall grade the area and level with three inches of asphalt (one inch surface fine and two inches surface fine).

B. Contractor shall stripe the lot for parking.

C. Contractor shall place top soil, seed and matting around grass area.

2. Option 1:

A. Construct additional parking (3000sf) in front of the building (one ADA seven standard): the contractor shall excavate and place eighteen inches stone, then four inch asphalt (two inch surface fine and two inches surface fine). Mark pavement.

Attachments to this SOW: Opsec Sketch

1. Description of Work: This scope of work is to remark existing parking lots and provide line striping for parking located around the building E3400, E3401, and E3461. There are approximately 283 parking spots’ six ADA spots; three “VISITOR” markings; two “GOV” markings; three “ORG” markings; and twenty-six (8’ x 10’) block out areas which includes crosswalks.

2. General Requirements: N/A

Government requires this project be completed within 180 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is a parking lot.

Hazardous Material: N/A

Tasks:

1. Civil B. Contractor shall remove and install 34 wheel stops.

C. Mark pavement.

2. Cost Proposal

Attachments to this SOW: none.

1. Description of Work: This scope of work is to resurface the parking lot/road that services buildings E4435 (31,000SF).

Government requires this project be completed within 180 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is a road/parking lot.

Hazardous Material: N/A

Tasks:

1. Civil A. Contractor shall mill three inches of asphalt.

B. Contractor shall repair and level and place three inches of asphalt. Place new asphalt (one inch fine and two inches of fine) to same level as original.

C. Contractor shall restripe the parking spaces, crosswalk, crosshatches, and ADA.

D. Contractor shall adjust manholes and valve.

3. Cost Proposal

Attachments to this SOW: None

Description of Work: This scope of work is to repair four storm drain inlets, sinkholes around an inlet along Aberdeen Boulevard, pipe leading away from School Street, two sections of sidewalk along Aberdeen Boulevard, and piping creating sinkholes between Buildings 30 and 31.

General Requirements: N/A

Period of Performance: Barring any contingencies that arise during construction, the Government requires this project be completed within 120 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: The four inlets are deteriorated. Sinkholes exit around an inlet along Aberdeen Boulevard between the entrance and exit to School Street. A section of sidewalk appears to have been cut and removed for utility work but never replaced. A short section of pipe leading from an inlet on School Street into a wooded area has developed a sinkhole. The pipe between the road and first inlet between buildings 31 and 32 has previously been repaired. However, the drain lines leading to the inlet from the two buildings have developed numerous sink holes. The lines from the houses and the line from the inlet to the inlet towards the water needs to be replaced. In addition, the curb next to the road inlet has completely deteriorated and must be replaced.

Hazardous Material: None are apparent.

a. The contractor is to repair the four storm drain inlets as shown on the map on School Street.

b. The contractor is to repair the curbs adjacent to the four inlets.

c. The repair work shall be consistent with SHA standards.

d. The contractor shall backfill any areas around the inlets to provide proper drainage to the curb or inlet.

e. The contractor shall seed and mulch any adjacent excavated area.

f. For the sinkholes, the contractor is to determine the cause of the sinkholes. If caused by damaged storm drain lines, the contractor is to remove any damaged line and replace it with a new drain line equivalent in size to the existing.

g. The contractor is to assume that sixteen feet of storm drain line is to be replaced along each section to be replaced. If additional storm drain replacement is needed or if another cause for the sinkhole has been determined, the contractor shall contact the COR before proceeding.

h. The contractor shall backfill the sinkhole and any excavation required for the replacement drain line.

i. The contractor shall seed and mulch the excavated area.

Important Services and Permit Requirements: AHA approval

2. Proposed construction schedule

Attachments to this SOW: Maps

(After site visit)

1. Description of Work: This scope of work is to smooth out the raised crosswalk approach located between the AA Gym and Running Track. .

Government requires this project be completed within 180 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is a road.

Hazardous Material: N/A

Tasks:

1. Civil D. For Raritan:

i. Contractor shall saw cut the white boarder concrete. Mill the approach roadway and pave to the crosswalk. Note: Transition is to place three inches of asphalt (note: one inch surface fine and two inches of surface fine.). Length to be a minimum of ten feet.

ii. Contractor shall restripe center/edge lines of the roads and crosswalk.

Mark a larger boarded around raised cross walk to replace concrete boarded.

iii. Contractor shall install small portion (six feet by six feet) of asphalt sidewalk on Raritan.

Attachments to this SOW: None.

1. Description of Work: This scope of work is to repair waterline that support the fire hydrants located in the front of Building E2900. This is design build for the concrete work.

Government requires this project be completed within 210 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements. (NOTE:

The completion date for the waterline repair is 30 calendar days after the AHA approval.)

Existing Conditions: Proposed site is a sidewalk.

Hazardous Material: N/A

Tasks:

1. Civil A. Saw cut concrete, excavate, remove damage pipe (10 inch, PVC) and replace with a new section pipe. This includes new bedding and stone. Backfill and install new concrete with wire and new concrete with wire sidewalk on the left section.

B. Perform a test pit between the repair pipe section and the grass area fire hydrant.

C. Replace ugly concrete pattern. Remove existing 6 inch curb and replace with “ramp” curb so that emergency vehicle have access to drive on the sidewalk. This is both ends of the fire emergency access lane. Install new sidewalk. Mill road and pave.

D. Cross hatch stripe car parking spaces.

E. UXO required.

2. Optional cost A. Install Force protection planters/barriers.

Submittals during the Contract: 60% and 100% design drawings.

After site visit on May 8, 2017

1. Description of Work: This scope of work is to create a cross walk and sidewalk (600 lf) from E2800 to the Shoppette.

2. General Requirements: N/A

Government requires this project be completed within 180 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is a parking lot and grass area.

Hazardous Material: N/A

Tasks:

1. Civil A. Contractor shall make three ADA curb cuts, and install ADA sidewalk.

B. Contractor shall install six foot wide concrete sidewalk (six inches thick with wire and stone base) which connects the E2800 sidewalk to the shoppette.

i. Remove a five foot by six foot sidewalk section located before the inlet.

ii Extend open throat cog inlet to match sidewalk, and remove the trip hazard.

C. Contractor shall Mark pavement for a crosswalk three locations.

D. Contractor shall install four crosswalk signs.

E. Contractor shall perform UXO.

4. Cost Proposal

(After Site Visit)

1. Description of Work: This scope of work is to repair sewer line in the Edgewood located by the E4383.

Government requires this project be completed within 60 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is an open area next to E4383.

Hazardous Material: N/A

Tasks:

1. Civil A. Contractor shall excavate about 14 feet by 20 feet by seven feet deep. Remove a section of pipe and replace that section with new pipe (10 inch DIP). Note: Many utilities in the area. Test pitting required.

B. Contractor shall provide a pump around system so that sewage flow is not interrupted during repairs.

C. Lime required of excavated soil.

D. UXO required.

E. Contractor shall fill excavation and seed.

(After site visit – May 1, 2017)

1. Description of Work: This scope of work is to resurface and restripe APG Road (78,000 sf) from the gate to the Norman Ave, just before the bridge.

General Requirements: N/A

Period of Performance: Barring any contingencies that arise during construction, the Government requires this project be completed within 180 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is a road.

Hazardous Material: N/A

Tasks:

1. Civil A. Contractor shall mill, grade and level, resurface three inches (fine with tack coat) of pavement. Fill in pot holes.

B. Contractor shall stripe pavement (four lines).

August 21, 2017 - After Site Visit

Description of Work: This scope of work is to place asphalt on the roads around AB6 (about 27,000sf).

General Requirements: N/A

Period of Performance: Barring any contingencies that arise during construction, the Government requires this project be completed within 270 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements, except for the submission of the final as-built drawings.

Existing Conditions: Proposed site is a testing complex with stone roads.

Hazardous Material: N/A

Tasks:

1. Civil A. Contractor shall grade and level the roads.

B. Contractor shall saw cut areas to tie into existing pavement.

C. Contractor shall place three inches of asphalt, one inch surface fine and two inches surface fine over the stone. Tack coat in between layers.

2. Schedule

Attachments to this SOW:

1. Drawings/Sketches : None

1. Description of Work: This scope of work is to resurface and restripe parking lot and road which services the EA Post Office. (20,000sf).

Government requires this project be completed within 180 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is a road/parking lot.

Hazardous Material: N/A

Tasks:

1. Civil A. Contractor shall mill, grade and level, resurface three inches (fine with tack coat) of pavement. Fill in pot holes.

B. Contractor shall stripe pavement.

C. Contractor to provide two precast steps for the loading dock.

D. Contractor to remove existing steps, handrail, and ADA ramp and install new steps, handrails, and ADA ramp with handrail. (Note: Access to Post Office during construction is required.)

E. Contractor to provided ADA sidewalk to ATM Machine.

F. Contractor to provide four bollards. (Two for mailbox and tow for utility pole.)

G. Contractor to provide six wheel stops.

1. Description of Work: This scope of work is to repair Building 339 storm drain in parking lot.

Government requires this project be completed within 180 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is a parking lot.

Hazardous Material: N/A

Tasks:

1. Civil E. Contractor shall saw cut 12 by 12 feet, excavate six feet, and stone up to grade less five inches. Install/build concrete box.

F. Contactor shall pave and stripe disturbed pavement.

G. UXO required.

Attachments to this SOW: none

1. Description of Work: This scope of work is to add a lane by re-stripe the Gate 22.

General Requirements: Lanes are labeled 1 thru 5 from left to right inbound. Island are Labeled 1 thru 5 from left to right inbound.

Period of Performance: Barring any contingencies that arise during construction, the Government requires this project be completed within 180 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is road.

Hazardous Material: N/A

Tasks:

1. Civil

A. Curb cut the Island 3, staring at drop arm to of center tip of the island.

B. Install guardrail/ bollards at the Gatehouse Lane 3.

C. Remove a section of “Light Island” from the inbound side to the first light.

Convert this section into pavement, excavate, place, and pave.

D. Grind and remove old markings.

E. Seal coat the road from the inspection point to the pop-up barrier.

F. Stripe the entire seal coat area.

G. Install signs “Merge Left”; “Lane Ends.”

Submittals during the Contract: none.

(After site visit.)

1. Description of Work: This scope of work is to repair parking lot/roads and sidewalks at the AA Visitor Center. This is designed build.

Government requires this project be completed within 180 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: Proposed site is a parking lots, roads, and sidewalk.

Hazardous Material: N/A

Tasks:

1. Civil A. For the grass area between the car entrance and land the truck parking area

(approximately 7 feet by 120 feet): excavate place base and pave.

B. For the car exist road: widen road (approximately by 30 feet as marked in the field at the site visit) includes base and asphalt.

C. For truck/car lane exits: widen various curves and islands (by approximately15 feet also as marked in the field at the site visit-) includes base and asphalt.

D. At the building: widen the concrete sidewalk 10 feet on each side and 20 feet in length as triangle.

E. Construct a 5’ wide sidewalk from the truck parking area to the building.

F. Install ten regulatory signs.

G. Stripe the edge of roads and stop bars. Place marking arrows.

H. Install 24’wide double swing gate as marked in the field at the site visit. no security cables required.

I. Provide 60% and 100% design drawings.

Submittals during the Contract: 60% and 100% design documents

Description of Work: This scope of work is to repair four storm drain inlets, sinkholes around an inlet along Aberdeen Boulevard, pipe leading away from School Street, two sections of sidewalk along Aberdeen Boulevard, and piping creating sinkholes between Buildings 30 and 31.

General Requirements: N/A

Period of Performance: Barring any contingencies that arise during construction, the Government requires this project be completed within 120 calendar days after the Award.

Completion is defined as completion of all contractual obligations and requirements.

Existing Conditions: The four inlets are deteriorated. Sinkholes exit around an inlet along Aberdeen Boulevard between the entrance and exit to School Street. A section of sidewalk appears to have been cut and removed for utility work but never replaced. A short section of pipe leading from an inlet on School Street into a wooded area has developed a sinkhole. The pipe between the road and first inlet between buildings 31 and 32 has previously been repaired.

However, the drain lines leading to the inlet from the two buildings have developed numerous sink holes. The lines from the houses and the line from the inlet to the inlet towards the water needs to be replaced. In addition, the curb next to the road inlet has completely deteriorated and must be replaced.

Hazardous Material: None are apparent.

A. The contractor is to repair the four storm drain inlets as shown on the map on School Street.

B. The contractor is to repair the curbs adjacent to the four inlets.

C. The repair work shall be consistent with SHA standards.

D. The contractor shall backfill any areas around the inlets to provide proper drainage to the curb or inlet.

E. The contractor shall seed and mulch any adjacent excavated area.

F. For the sinkholes, the contractor is to determine the cause of the sinkholes. If caused by damaged storm drain lines, the contractor is to remove any damaged line and replace it with a new drain line equivalent in size to the existing.

G. The contractor is to assume that sixteen feet of storm drain line is to be replaced along each section to be replaced. If additional storm drain replacement is needed or if another cause for the sinkhole has been determined, the contractor shall contact the COR before proceeding.

H. The contractor shall backfill the sinkhole and any excavation required for the replacement drain line.

I. The contractor shall seed and mulch the excavated area.

Important Services and Permit Requirements: AHA approval

2. Proposed construction schedule

Attachments to this SOW: Maps

Scope of Work – After Site Visit

DESCRIPTION OF WORK: Remove and replace approximately 200 feet of existing 2” diameter steam and 1-1/2” diameter condensate piping from a steam manhole located next to Austin Road to vault outside of Building E4140 shown on attached drawing M-1. Pipe shall be replaced from the valve and/or union in vault outside Building E4140 to the first valve and/or union located inside the manhole (H-1) located next to Austin Road. New underground piping shall be drainable and dryable MULTI-THERM 500 type as manufactured by PERMA-PIPE or approved equal. Subject to compliance with requirements, provide products by one of the following manufacturers: Insul-Tek Piping Sytems, Inc., Perma-Pipe, Inc., Rovanco Piping Systems, Inc., or Thermacor Process, LP, or approved equal. Note: Contractor to terminate work outside of building, connection to be made in “PIT” by the building.

GENERAL REQUIREMENTS:

HAZARDOUS MATERIAL: The existing underground steam and condensate piping to be removed may contain asbestos insulation. Contractor to expose pipe for testing, which will be performed by others.

TASKS:

A. Scope of Work:

1. The contractor shall completely remove/demolish all existing direct burial steam and condensate piping, sump pump piping, sump pumps, valves, supports, expansion loops, expansion joints, and associated appurtenances located in an existing underground direct burial steam piping system that serves from manhole located along Austin Road to Building E4140. Remove all piping, valves, fittings, insulation and all hangers, including the connection to the structure and any fastenings. All material or equipment to be removed shall become the property of the contractor and shall be removed from government property within one week and shall not be stored in operating areas. All flame cutting shall be performed with adequate fire protection facilities available as required by safety codes and the Contracting Officer’s Representative.

2. Provide and install new underground Steam and Condensate piping from building E4140 to the Manhole located next to Austin Road. The new underground Steam and condensate piping shall be properly sized to meet the heating demand of buildings E4140. New underground hot water supply and return piping shall be drainable and dryable MULTI-THERM 500 type as manufactured by PERMA- PIPE or approved equal. Subject to compliance with requirements, provide products by one of the following manufacturers: Insul-Tek Piping Sytems, Inc., Perma-Pipe, Inc., Rovanco Piping Systems, Inc., or Thermacor Process, LP, or approved equal.

3. All valves, piping, pipe supports and steam traps, if any, in the manhole located next to Austin road shall be replaced new in kind. Provide and install new foam glass insulation that can withstand water but still maintain insulation R-Value. Provide conduit drain in bottom of steam and condensate, piping with double elbow and extend to surface. Terminate in cap for pump out operation.

4. All straight sections, fittings, anchors, and other accessories shall be factory prefabricated to job dimensions. Each system layout shall be computer analyzed by the piping manufacturer to determine stresses on the carrier pipe and anticipated thermal movements of the service pipe. A copy of the findings shall be provided to the COR.

5. The system design shall be in strict conformance with ASME B31.1, latest edition.

Factory trained field technical assistance shall be provided for the critical periods of installation, i.e., unloading, field joint construction, and testing.

6. Direct buried piping routing, expansion loops, thrust blocks, anchors, and other accessories shall be designed and installed in accordance with the manufacturer’s recommendations and specifications.

7. The system shall be designed based on the following operating conditions: high steam pressure.

8. Steam piping shall be Schedule 80 black steel.

9. Condensate piping shall be Schedule 80 black steel.

10. Sump pump piping shall be schedule 40 black steel

11. OMIT

12. End seals, gland seals, and anchors shall be designed and factory prefabricated to prevent the ingress of moisture into the system. All sub-assemblies shall be designed to allow for complete draining and drying of the conduit system.

13. Carrier pipe insulation shall be mineral wool. Split insulation shall be held in place by stainless steel bands installed on 18 inch centers. The insulation shall have passed the most recent boiling test and other requirements specified in the Federal Agency Guidelines Specifications. The insulation shall be applied to a thickness of 3 inches.

Conduit Size Conduit Thickness

The steel conduit casing shall be smooth wall, spiral weld steel conduit of thickness specified below:

Changes in casing size, as required at oversized casing to allow for carrier pipe expansion, shall be accomplished by eccentric and/or concentric fittings and shall provide for continuous drainage.

14. OMIT.

15. All pipes within the outer casing shall be supported at not more than 10 foot intervals. These supports shall be designed to allow for continuous airflow and drainage of the conduit in place. The straight supports shall be designed to occupy not more than 10% of the annular air space. Supports shall be of the type where calcium silicate pipe insulation thermally and electrically isolates the carrier pipe from the outer conduit. Supports which directly contact both the carrier pipe and the outer casing shall not be allowed. The surface of the insulation shall be protected at the support by a metal sleeve not less than 12 inches long, fitted with traverse and where required, rotational arresters.

16. The installing contractor shall handle the system in accordance with the directions furnished by the manufacturer and as approved by the architect and engineer. The casing shall be air tested at 15 psig and the service piping shall be hydrostatically hammer tested to 150 psig or 1 1/2 times the operating pressure, or as specified in the contract documents. The test pressure shall be held for not less than one hour.

17. Backfill

A. Use only backfill material free of organic matter, cinders, frozen earth, clay and exceeding 6 inches in any dimension. Backfill shall be classified as SM or better as per ASTM D 2487.

B. Provide bed of firmly compacted sand, gravel or crushed stone of proper grade to form a uniform support. Hollow out for bells. Backfill excessive over-depth with firmly compacted sand or gravel. Backfill shall be classified as SM or better as per ASTM D 2487.

6" - 26" 10 gauge 28" - 36" 6 gauge 38" - 42" 4 gauge

C. Provide structurally suitable reinforced concrete beam supported by the structure and undisturbed earth to support piping where a properly compacted bed is difficult to obtain, because of fill conditions, such as may occur adjacent to building walls.

D. As items to be buried are laid, backfill with backfill classified as SM or better as per ASTM D 2487 to centerline of pipe or 6 inches deep and tamp.

E. After test and inspections are complete, backfill with backfill classified as SM or better as per ASTM D 2487 until buried items have one foot of cover.

Carefully tamp each layer. Compact to at least 80% of the maximum dry density as determined by ASTM D 698.

F. Deposit remainder of backfill material in 8 inch layers and tamp each layer.

Compact. in accordance with the most stringent specification from Harford County or pipe manufacturer.

G. Backfill around manholes and similar structures in 8 inch tamped layers. Compact in accordance with the most stringent specification from Harford County or pipe manufacturer.

H. Backfill with backfill classified as SM or better as per ASTM D 2487, inside building under to within 3 feet of equipment and under roadways. Compact to at least 95% of the maximum dry density as determined by ASTM D 1557.

I. Provided certified compaction reports to the COR for each layer of backfill

18. Install continuous plastic underground warning tape during back filling of trenches for underground steam and condensate piping. Locate 6 to 8 inches below finished grade, directly over piping.

19. Contractor shall submit shop drawings signed and sealed by a registered professional engineer:

Calculate requirements for expansion compensation for underground piping.

Show expansion compensators, offsets, and loops with appropriate materials to allow piping movement in the required locations. Show anchors and guides that restrain piping movement with calculated loads, and show concrete thrust block dimensions.

Show pipe sizes, locations, and elevations. Show piping in trench, conduit, and cased pipe with details showing clearances between piping, and show insulation thickness.

20. Contractor shall submit certificate signed by manufacturers certifying that conduit and cased piping complies with requirements

21. All work shall follow manufacturer’s recommendations for installation as well as any applicable ASME codes.

22. All drawings provided are for reference only; contractor shall verify location of all existing utilities.

23. OMIT

24. Provide and install duplex sump pumps. Pipe sump discharge to nearest sanitary line. Provide and install sump pumps that will be able withstand the expected conditions

25. Manhole Sump Pump/Ejector: Provide and install new automatic duplex type sump pump drainers in associated manhole to operate when water level rises sufficiently in the manhole sump pit and shall pump water from the sump pit.

When water level is lowered by pumping action, pumping action shall stop until water again gathers in sump pit. Provide sump pump with controls to accomplish described sequence of operation. The contractor shall support the sump pump control box on a heavy galvanized steel 4”x4”x 3/8” thick pole/tube. Sump pump shall be capable of displacing high (200° F) temperature water without failure.

A. Construction: Sump pump shall be sealed submersible type with cast iron housing, open inlet to allow solids to pass, machined external mating parts with Buna O-ring seals. Fasteners exposed to pumped liquid shall be stainless steel. Power cords shall be water resistant UL or CSA approved with double insulation and sized as a functioned of ampere draw. Electrical power shall be capable of withstanding 200° F water.

B. Motor and Shaft: Starter, motor and bearings shall be mounted in a sealed submersible type housing. Single phase motors shall be split phase or capacitor start with centrifugal switch.

C. Bearings, shaft and mechanical seal: provide upper bushing bearing and lower thrust bearing. Upper bearing shall be cast iron sleeve and the lower bearing shall be a single row ball bearing. Bearings shall be permanently lubricated and cooled by dielectric oil in motor housing. Motor shall be stainless steel and sealed from the pump liquid with a ceramic mechanical seal.

D. Impeller: Recessed steel impeller

E. Control. Automatic operation, controlled by float switch. Provide with piggy back plug to allow manual operation without removal of sump and seal failure probe.

F. Sump Pump Installation

1. Install sump pump according to manufacturer’s recommendations.

2. Install pumps and arrange to provide access for maintenance including removal of motors, impellers, couplings and accessories.

3. Set submersible sump pump on pit floor. Make direct connections to sanitary drainage piping.

4. Support piping so weight of piping is not supported by pumps.

Horizontal installed across boiler plant ceiling shall be sloped 1/8” per foot in direction of flow.

5. Install piping adjacent to sump pump to allow service and maintenance.

a. Install flexible connectors adjacent to sump pump in discharge piping.

b. Install check and shut-off valve on discharge piping from pump.

Install unions on sump pump with threaded pipe connection.

Install valve same size as connected piping.

6. Provide electric to the sump pump in accordance with the latest edition of the National Electric Code for the expected conditions inside the manholes.

7. Sump Pump Testing

a. Pump and Power cord shall be visually inspected for nicks and imperfections with the COR present

b. Perform ground continuity check and the motor chamber shall be Hi-potted to test for moisture content or insulation defects.

Provide written results of continuity test and test to moisture to COR.

9. Energize pump, confirm electric voltage and current are within normal parameters and that pump is operating smoothly without noticeable vibrations or unusual noise

26. Contractor shall restore the site to its original condition and contours.

27. The contractor shall attempt to waterproof exterior of manhole. The contractor shall extend the manhole six feet to accommodate new duplex sump pumps and provide new cover. The pump shall be connected inside of the manhole. Contractor not responsible to make manhole watertight.

28. OMIT

29. The contractor shall test pit to determine elevations of all existing underground utilizes. No trench digging shall commence and no pipe shall be released for fabrication until all estimated crossings and alignments of existing utilities have been verified.

30. The contractor shall install and maintain 3’-0” of cover over all underground piping regardless of unknown and known obstacles encountered during construction. The contractor shall test pit to verify all existing elevations of all underground utilities.

31. All excavation shall be shored or sloped as appropriate to ensure worker safety and ensure nearby structures, utilities and other near-by features are not adversely affected.

32. The contractor shall submit an ACTIVITY HAZARD ANALYSIS, prior to start of any work, to be approved by the Government. The Government POC for this action is Bill Alcarese (410-306-1082). Notify COR of all correspondence.

33. Provide dewatering for all exposed trenching. Proper drainage and collection provision shall be required to minimize exposure of site soils to moisture and prevent surface run-off from entering excavations.

34. The contractor shall provide adequate barricades around all construction sites to prevent pedestrians from entering the construction site. If pedestrians must cross over the excavation area, the contractor will provide a structurally sound and safe bridge with railings to prevent anyone from entering or falling into the excavated areas.

35. All roads and parking lot areas affected shall maintain flow of traffic during the course of construction. The contractor shall provide barricades, flaggers, signs, steel plates, etc. as required to maintain safe traffic flow.

36. Perform start-up, testing, and balancing for all new equipment.

37. The contractor shall utilize hydrostatic pressure testing to demonstrate leak tightness for all piping.

38. The contractor shall provide and install any and all temporary heating to buildings E4140 and any other buildings affected by the installation of the new campus underground utility steam piping system while the piping is being replaced. The contractor shall provide hook-up, start-up, operation, fuel and removal of all temporary heating equipment. The contractor shall provide the correct amount of temporary heating to Buildings E4140 and any other building affected. The contractor shall provide 24 hour, 7 days a week emergency repair services to all temporary heating and cooling equipment utilized. The contractor shall also be responsible for all required maintenance of the temporary cooling and heating equipment provided and installed.

39. Building E4140 will be occupied during construction. The contractor shall maintain and be responsible for the existing domestic cold water service, chilled water, building electric service, building sewer system, building drainage systems, and storm-water drainage systems to building E4140 during the entire construction period of this project. Any damage caused by the steam and condensate pipe installation to the existing domestic cold water, chilled water, building electric service, building drainage systems and storm drainage systems etc., will be repaired by the contractor, as soon as possible, to restore services, at no cost to the Government. Provide temporary cooling and heating to buildings E4140 as required to support the facility space conditions during the entire course/time period of the contract. Access to the building E4140 parking lot shall be maintained and remain open during the entire demolition and installation of the new steam and condensate piping.

40. The contractor shall provide a construction schedule at the preconstruction meeting and provide an updated schedule every two weeks after. A progress meeting may be organized by the Government and held at the Governments convenience to discuss project status.

41. The contractor shall field verify all existing conditions prior to start of demolition and new work. Notify the contracting officer of any discrepancies or potential conflicts before proceeding with the work.

The contractor shall provide any and all engineering design services required for this project in order to provide a correct operational underground steam and condensate piping system between building E4140 and the manhole located next to Austin Road.

Provide UXO sweep and utility location as required for all excavated areas.

No soil shall be transported off APG-EA. If this project has excess soil, annotate on the excavation permit the estimated amount of soil. A determination will be made if the soil will require analysis before transporting to an on post stockpile. Contact Environmental Compliance Branch for further details at 410-306-2262.

45. The contractor shall restore all sidewalks, curbs, roads and grassed areas to their original condition

A. Sidewalks (six inches thick with wire mesh, and stone base)

1. Install new sidewalk six foot wide and new curb sixty feet long.

2. Repair storm drain cover.

3. Asphalt Pavement- Replace all asphalt pavement removed in-kind and in accordance with all codes and regulations governing asphalt pavement.

Asphalt pavement removed shall be disposed off-site.

IMPORTANT SERVICES AND PERMITS REQUIREMENTS: Contractor shall be responsible to obtain the necessary services and/or permits/plans as listed below:

1. Excavation Permit

2. Coordination with Privatized Utility

3. UXO Magnetometer Sweep

SUBMITTALS WITH PROPOSAL:

SUBMITTALS DURING CONTRACT:

1. RECORD DRAWINGS:

A. Throughout the course of the construction, the Contractor shall maintain at the job site one set of prints in good condition indicating in red ink the path of the new steam and condensate piping The Contractor shall provide the original red ink drawings to the Government upon completion of the work.

B. Upon completion of the work, the Contractor shall provide the Government with a reproducible set of record drawings and Microstation drawing files that reflect the “AS BUILT” conditions and clearly show the path of underground systems, location of equipment, and piping. All piping shall be drawn double line and include detailed manhole drawings that detail the piping and equipment in each manhole. The contractor shall provide section drawings of each manhole detailing pipe elevations and locations. The contractor shall provide detailed elevation drawings of all piping that will also include location and depths of existing utilities.

Attachments to this SOW:

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