Amendment_04_Attachment_2_Specification_Water_Treatment_Plant_Expansion_Project_Manual_-_Volume_1_-_6-12-23_Rev1_0004.pdf

SPECIFICATIONS Volume 1

DIVISIONS 1 - 23

Final Construction Documents-Stamped and Signed Submittal Rehabilitate and Expand Wastewater Treatment Plant Mount Rushmore National Memorial PMIS Number: 272051

MOUNT RUSHMORE NATIONAL MONUMENT

13000 Highway 244 Keystone, SD 13 June, 2023

NATIONAL PARK SERVICE

THIS PAGE INTENTIONALLY LEFT BLANK.

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PROJECT SEALS

Owner Name: National Park Service

Facility or Site Name: Mount Rushmore National Memorial

Project Name: Water Treatment Plant Expansion

Project or Contract Designation: PMIS No. 272051

Engineer: HDR

Stephen R. Smith, PA

The seal and signature to the left applies to the following Specifications divisions and sections of this project manual:

• Division 01 (except 01 45 25, 01 45 33, 01 45 33B, 01 61 03, 01 75 00), 05 (except 05 50 00), 07, 08 (except

08 90 00), 09 (except 09 01 91, 09 96 00), 10 (except 10 14 00),

• Sections 06 20 00, 06 40 00, Svein Magnussen, PE this project manual:

• Division 03, 04

• Sections 01 45 25, 01 45 33, 01 45 33B, 05 50 00, 06 10 00

MORU - 272051 00 01 07 - 2

Christopher Lee Robinson, PE this project manual:

• Division 31, 32, 33 (except 33 52 10), 41, 43, 46

• Sections 01 61 03, 01 75 00, 02 06 13, 06 85 14, 09 01 91, 09 96 00, 10 14 00, 40 05 00, 40 05 07, 40 05 19, 40 05 23, 40 05 31, 40 05 51, 40 05 52, 40 05 61, 40 05 62, 40 05 63, 40 05 64, 40 05 65, 40 05 66, 40 12 00

Shaun Nienhueser, PE this project manual:

• Division 22, 23

• Sections 08 90 00, 33 52 10, 40 42 00

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Kyle L. Ganskop, PE this project manual:

• Division 26, 27, 28

• Sections 40 41 13

Kaitlyn Rohloff, PE this project manual:

• Sections 40 61 13 40 61 21, 40 61 43, 40 61 93, 40 61 93A, 40 61 96, 40 61 96A - Z, 40 62 05, 40 63 43, 40 66 05, 40 67 00, 40 67 63, 40 68 13, 40 68 63, 40 70 06, 40 70 06A, 40 71 00, 40 72 00, 40 73 00, 40 75 00, 40 78 00

Engineer’s seal and signature does not apply to the documents that comprise Division 00, Bidding and

Contracting Requirements.

It is a violation of applicable laws and regulations governing professional licensing and registration for any person, unless acting under the direction of the licensed and registered design professional(s) indicated above, to alter in any way the Specifications in this project manual.

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TABLE OF CONTENTS

TABLE OF CONTENTS

DIVISION 01 — GENERAL REQUIREMENTS

01 11 00 - SUMMARY OF WORK

01 26 01 - CONTRACT MODIFICATION PROCEDURES

01 27 00 - DEFINITION OF CONTRACT LINE ITEMS

01 31 00 - PROJECT MANAGEMENT AND COORDINATION

01 32 16 - CONSTRUCTION SCHEDULE

01 32 33 - PHOTO DOCUMENTATION

01 33 23 - SUBMITTAL PROCEDURES

01 33 23A - SUBMITTAL LIST WITH REVIEW ESTIMATE

01 35 13.22 - ARCHEOLOGICAL PROTECTION

01 35 23 - SAFETY REQUIREMENTS

01 40 00 - QUALITY REQUIREMENTS

01 40 00A - NPS UNIVERSAL DESIGN AND ACCESSIBILITY SCOPING FORM FOR ABAAS FACILITIES .

01 42 00 - REFERENCE STANDARDS

01 45 25 - TESTING CONCRETE STRUCTURES FOR WATERTIGHTNESS

01 45 33 - SPECIAL INSPECTIONS AND TESTING PROGRAM

01 45 33B - STATEMENT OF STRUCTURAL TESTS AND SPECIAL INSPECTIONS

01 50 00 - TEMPORARY FACILITIES AND CONTROLS

01 57 19.11 - INDOOR AIR QUALITY MANAGEMENT

01 57 19.12 - NOISE AND ACCOUSTICS MANAGEMENT

01 57 23 - TEMPORARY STORM WATER POLLUTION PREVENTION

01 61 03 - EQUIPMENT - BASIC REQUIREMENTS

01 67 00 - PRODUCT REQUIREMENTS

01 73 29 - CUTTING AND PATCHING

01 73 40 - EXECUTION

01 74 19 - CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

01 75 00 - CHECKOUT AND START-UP PROCEDURES

01 77 00 - CLOSEOUT PROCEDURES

01 77 00A - CLOSEOUT AND OPERATION & MAINTENANCE REQUIREMENTS

01 78 23 - OPERATION AND MAINTENANCE DATA

01 79 00 - DEMONSTRATION AND TRAINING

01 81 13 - SUSTAINABLE DESIGN REQUIREMENTS FOR NON-LEED™ PROJECTS

DIVISION 02 — EXISTING CONDITIONS

02 06 13 - GEOTECHNICAL BASELINE REPORT

02 06 13A - GEOTECHNICAL REPORT

DIVISION 03 — CONCRETE

03 05 05 - CONCRETE TESTING AND INSPECTION

03 11 13 - FORMWORK

03 15 19 - ANCHORAGE TO CONCRETE

03 21 00 - REINFORCEMENT

03 31 30 - CONCRETE, MATERIALS AND PROPORTIONING

03 31 31 - CONCRETE MIXING, PLACING, JOINTING, AND CURING

03 35 00 - CONCRETE FINISHING AND REPAIR OF SURFACE DEFECTS

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DIVISION 04 — MASONRY

04 05 13 - MASONRY MORTAR AND GROUT

04 05 23 - MASONRY ACCESSORIES

04 05 50 - COLD AND HOT WEATHER MASONRY CONSTRUCTION

04 22 00 - CONCRETE MASONRY

DIVISION 05 — METALS

05 50 00 - METAL FABRICATIONS

05 51 00 - METAL LADDERS

05 52 23 - STEEL RAILINGS

05 52 46 - MECHANICALLY FASTENED ALUMINUM RAILINGS

05 80 00 - EXPANSION JOINT COVERS

DIVISION 06 — WOOD, PLASTICS, AND COMPOSITES

06 10 00 - ROUGH CARPENTRY

06 20 00 - FINISH CARPENTRY

06 40 00 - ARCHITECTURAL CASEWORK

06 85 14 - FRP LAUNDERS, WEIRS AND BAFFLES

DIVISION 07 — THERMAL AND MOISTURE PROTECTION

07 20 00 - BUILDING INSULATION

07 26 00 - UNDER SLAB VAPOR RETARDER

07 60 00 - FLASHING AND SHEET METAL

07 72 00 - ROOF ACCESSORIES

07 92 00 - JOINT SEALERS

DIVISION 08 — OPENINGS

08 11 13 - METAL DOORS AND FRAMES

08 33 00 - OVERHEAD COILING DOORS

08 54 13 - FIBERGLASS WINDOWS

08 71 00 - HARDWARE AND SPECIALTIES

08 90 00 - LOUVERS AND VENTS

DIVISION 09 — FINISHES

09 01 91 - REFINISHING FIBERGLASS DOMES

09 06 90 - COLOR SCHEDULE

09 29 00 - GYPSUM DRYWALL

09 30 00 - TILE

09 51 00 - ACOUSTICAL TREATMENT

09 65 00 - RESILIENT FLOORING

09 90 00 - PAINTING

09 96 00 - HIGH PERFORMANCE INDUSTRIAL COATINGS

DIVISION 10 — SPECIALTIES

10 14 00 - IDENTIFICATION DEVICES

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10 28 13 - TOILET ACCESSORIES

10 44 16 - FIREFIGHTING DEVICES

10 51 13 - METAL LOCKERS

DIVISION 22 — PLUMBING

22 05 03 - PIPE AND PIPE FITTINGS - PLUMBING SYSTEMS

22 05 29 - HANGERS AND SUPPORTS FOR PLUMBING PIPING AND EQUIPMENT

22 05 53 - IDENTIFICATION FOR PLUMBING PIPING AND EQUIPMENT

22 15 00 - GENERAL SERVICE COMPRESSED-AIR SYSTEMS

22 20 00 - PLUMBING FIXTURES AND EQUIPMENT

DIVISION 23 — HEATING VENTILATING AND AIR CONDITIONING

23 05 00 - SPECIAL MECHANICAL REQUIREMENTS

23 05 53 - MECHANICAL IDENTIFICATION SYSTEMS

23 05 93 - TESTING, ADJUSTING, AND BALANCING FOR HVAC

23 07 00 - PIPE, DUCT AND EQUIPMENT INSULATION

23 09 23 - DIRECT-DIGITAL CONTROL SYSTEM FOR HVAC

23 11 26 - LIQUID PETROLEUM GAS SYSTEM

23 23 00 - REFRIGERANT PIPING SYSTEM

23 31 13 - AIR DISTRIBUTION SYSTEM

23 35 00 - EXHAUST AND VENTILATING FANS

23 80 00 - HVAC - EQUIPMENT

23 81 26 - UNITARY SPLIT AIR CONDITIONERS

DIVISION 26 — ELECTRICAL

26 05 00 - ELECTRICAL - BASIC REQUIREMENTS

26 05 19 - WIRE AND CABLE - 600 VOLT AND BELOW

26 05 26 - GROUNDING AND BONDING

26 05 33 - RACEWAYS AND BOXES

26 05 43 - ELECTRICAL - EXTERIOR UNDERGROUND

26 08 13 - ACCEPTANCE TESTING

26 09 13 - ELECTRICAL METERING DEVICES

26 09 16 - CONTROL EQUIPMENT ACCESSORIES

26 09 46 - DISTRIBUTED DIGITAL LIGHTING CONTROL SYSTEMS

26 22 13 - DRY-TYPE TRANSFORMERS

26 24 13 - SWITCHBOARDS

26 24 16 - PANELBOARDS

26 24 19 - MOTOR CONTROL EQUIPMENT

26 27 26 - WIRING DEVICES

26 28 00 - OVERCURRENT AND SHORT CIRCUIT PROTECTIVE DEVICES

26 28 16 - SAFETY SWITCHES

26 29 23 - ADJUSTABLE FREQUENCY DRIVES - LOW VOLTAGE

26 36 00 - TRANSFER SWITCHES

26 41 13 - LIGHTNING PROTECTION SYSTEM

26 43 13 - SURGE PROTECTION DEVICES FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS

26 50 00 - INTERIOR AND EXTERIOR LIGHTING

26 52 13 - CENTRAL EMERGENCY LIGHTING INVERTER

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DIVISION 27 — COMMUNICATIONS

27 10 00 - STRUCTURED CABLING

DIVISION 28 — ELECTRONIC SAFETY AND SECURITY

28 13 10 - SECURITY SYSTEM

28 23 00 - VIDEO SURVEILLANCE

28 42 01 - BIOGAS AND VENTILATION ALARM PANEL AND ACCESSORIES

28 46 00 - FIRE DETECTION AND ALARM

DIVISION 31 — EARTHWORK

31 10 00 - SITE CLEARING

31 22 00 - SITE GRADING

31 23 00 - EARTHWORK

31 23 19 - DEWATERING

31 23 33 - TRENCHING, BACKFILLING, AND COMPACTING FOR UTILITIES

DIVISION 32 — EXTERIOR IMPROVEMENTS

32 12 16 - ASPHALTIC CONCRETE VEHICULAR PAVING

32 13 13 - CONCRETE PAVEMENT

32 31 13 - CHAIN LINK FENCE AND GATES

32 32 19 - MODULAR CONCRETE WALL

32 91 13 - TOPSOILING AND FINISHED GRADING

DIVISION 33 — UTILITIES

33 05 16 - PRECAST CONCRETE MANHOLE STRUCTURES

33 11 13 - WATER MAIN CONSTRUCTION

33 12 19 - FIRE HYDRANT

33 31 11 - GRAVITY SEWER PIPELINE AND MANHOLE CONSTRUCTION

33 52 10 - SERVICE PIPING - FUEL SYSTEMS

DIVISION 40 — PROCESS INTERCONNECTIONS

40 05 00 - PIPE AND PIPE FITTINGS - BASIC REQUIREMENTS

40 05 07 - PIPE SUPPORT SYSTEMS

40 05 19 - DUCTILE IRON PROCESS PIPE

40 05 23 - PIPE - STAINLESS STEEL

40 05 31 - PIPE - PLASTIC

40 05 51 - VALVES - BASIC REQUIREMENTS

40 05 52 - MISCELLANEOUS VALVES

40 05 61 - GATE VALVES

40 05 62 - PLUG VALVES

40 05 63 - BALL VALVES

40 05 64 - BUTTERFLY VALVES

40 05 65 - GLOBE CONTROL VALVES

40 05 66 - CHECK VALVES

40 12 00 - COMPRESSED AIR SYSTEM

40 41 13 - HEAT TRACING CABLE

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40 42 00 - PIPE, DUCT AND EQUIPMENT INSULATION

40 61 13 - PROCESS CONTROL SYSTEM GENERAL REQUIREMENTS

40 61 21 - PROCESS CONTROL SYSTEM TESTING

40 61 43 - SURGE PROTECTION DEVICES FOR INSTRUMENTATION AND CONTROL EQUIPMENT

40 61 93 - PROCESS CONTROL SYSTEM INPUT-OUTPUT LIST

40 61 93A - IO LIST

40 61 96 - PROCESS CONTROL DESCRIPTIONS

40 61 96A - PROCESS CONTROL DESCRIPTIONS - APPENDIX A - HEADWORKS

40 61 96B - PROCESS CONTROL DESCRIPTIONS - APPENDIX B - EQUALIZATION BASINS

40 61 96C - PROCESS CONTROL DESCRIPTIONS - APPENDIX C - AERATION BASINS 1A&2A

40 61 96D - PROCESS CONTROL DESCRIPTIONS - APPENDIX D - AERATION BASINS 1B&2B

40 61 96E - PROCESS CONTROL DESCRIPTIONS - APPENDIX E - AERATION BLOWERS

40 61 96F - PROCESS CONTROL DESCRIPTIONS - APPENDIX F - RAS & WAS CONTROL

40 61 96G - PROCESS CONTROL DESCRIPTIONS - APPENDIX G - CLARIFIERS

40 61 96H - PROCESS CONTROL DESCRIPTIONS - APPENDIX H - SAND FILTERS

40 61 96I - PROCESS CONTROL DESCRIPTIONS - APPENDIX I - UV & OUTFALL

40 61 96J - PROCESS CONTROL DESCRIPTIONS - APPENDIX J - CENTRIFUGE FEED PUMPS

40 61 96K - PROCESS CONTROL DESCRIPTIONS - APPENDIX K - CENTRIFUGES

40 61 96L - PROCESS CONTROL DESCRIPTIONS - APPENDIX L - SOLIDS HANDLING AND LOADOUT ..

40 61 96M - PROCESS CONTROL DESCRIPTIONS - APPENDIX M - WINTER SOLIDS

40 61 96N - PROCESS CONTROL DESCRIPTIONS - APPENDIX N - SUMPS

40 61 96O - PROCESS CONTROL DESCRIPTIONS - APPENDIX O - DEWATERING POLYMER SYSTEM

40 61 96P - PROCESS CONTROL DESCRIPTIONS - APPENDIX P - FERRIC CHLORIDE SYSTEM

40 61 96Q - PROCESS CONTROL DESCRIPTIONS - APPENDIX Q - MICRO-C SYSTEM

40 61 96R - PROCESS CONTROL DESCRIPTIONS - APPENDIX R - SODIUM HYDROXIDE SYSTEM

40 61 96X - PROCESS CONTROL DESCRIPTIONS - APPENDIX X - BVAP - NORTH BUILDING

40 61 96Y - PROCESS CONTROL DESCRIPTIONS - APPENDIX Y - BVAP - SOUTH BUILDING

40 61 96Z - PROCESS CONTROL DESCRIPTIONS - APPENDIX Z - BVAP - WINTER SOLIDS

40 62 05 - COMPUTER SYSTEM HARDWARE AND ANCILLARIES

40 63 43 - PROGRAMMABLE LOGIC CONTROLLERS

40 66 05 - NETWORK EQUIPMENT

40 67 00 - CONTROL SYSTEM EQUIPMENT PANELS AND RACKS

40 67 63 - UNINTERRUPTIBLE POWER SUPPLY

40 68 13 - PROCESS CONTROL (HMI) SOFTWARE

40 68 63 - CONFIGURATION OF HMI SOFTWARE AND REPORTS

40 70 06 - SCHEDULE OF INSTRUMENTATION FOR PROCESS SYSTEMS

40 70 06A - SCHEDULE OF INSTRUMENTATION

40 71 00 - FLOW INSTRUMENTATION

40 72 00 - LEVEL INSTRUMENTATION

40 73 00 - PRESSURE INSTRUMENTATION

40 75 00 - PROCESS LIQUID ANALYTICAL MEASUREMENT

40 76 00 - PROCESS GAS ANALYTICAL MEASUREMENT

40 78 00 - PANEL MOUNTED INSTRUMENTS

DIVISION 41 — MATERIAL PROCESSING AND HANDLING EQUIPMENT

41 12 13 - CONVEYORS - SCREW

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DIVISION 43 — PROCESS GAS AND LIQUID HANDLING, PURIFICATION AND STORAGE

EQUIPMENT

43 11 33 - ROTARY LOBE BLOWERS

43 21 00 - PUMPING EQUIPMENT - BASIC REQUIREMENTS

43 23 31 - PUMPING EQUIPMENT - LIQUID CHEMICAL FEED SKIDS - PERISTALTIC

43 23 57 - PUMPING EQUIPMENT - PROGRESSIVE CAVITY

43 24 16 - PUMPING EQUIPMENT - SUMP

43 25 13 - PUMPING EQUIPMENT - SUBMERSIBLE END-SUCTION SEWAGE PUMPS

43 41 43 - POLYETHYLENE CHEMICAL TANKS

DIVISION 46 — WATER AND WASTEWATER EQUIPMENT

46 13 01 - FIBERGLASS COVERS - DOME TYPE

46 21 25 - SCREENING EQUIPMENT - CYLINDRICAL FINE SCREEN

46 24 23 - SLUDGE GRINDERS

46 33 33 - LIQUID POLYMER FEED EQUIPMENT

46 33 73 - LIQUID CHEMICAL DIFFUSERS

46 41 00 - MIXERS

46 43 24 - SPIRAL SCRAPER CIRCULAR SECONDARY CLARIFIER EQUIPMENT

46 51 00 - AERATION EQUIPMENT - BASIC REQUIREMENTS

46 51 21 - AERATION SYSTEM - COARSE BUBBLE TYPE

46 51 32 - FLEXIBLE MEMBRANE DIFFUSERS

46 53 44 - VERTICAL UPFLOW CONTINUOUS BACKWASH SAND FILTER

46 66 56 - OPEN-CHANNEL ULTRAVIOLET (UV) DISINFECTION EQUIPMENT

46 76 33 - CENTRIFUGES

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SUMMARY OF WORK

NPS DSC Division 1 Specifications National Park Service (NPS) - Denver Service Center (DSC) | 5-11-21

BY USING NPS DSC DIVISION 1 SPECIFICATIONS, YOU ACKNOWLEDGE YOU READ, UNDERSTAND, AND WILL FORMAT EDITS ACCORDING TO NPS DSC DIVISION 1 SPECIFICATIONS INSTRUCTIONS.

A. MOUNT RUSHMORE NATIONAL MEMORIAL PMIS No. 272051

SECTION 01 11 00 - SUMMARY OF WORK

PART 2 - GENERAL

2.1 SUMMARY

A. Section includes the following:

1. Work Covered by Contract Documents

2. Work Phases

3. Work Under Other Contracts

4. Government-Furnished Materials

5. Contractor Use of Site

6. Public Use of Site

7. Occupancy Requirements for Buildings

8. Conduct of Operations

9. Work Restrictions

10. Special Construction Requirements

11. Soils Investigation Report

12. Additional Reports

2.2 WORK COVERED BY CONTRACT DOCUMENTS

A. Project Location: Mount Rushmore National Monument, Waste Water Treatment Plant, Key-stone, South Dakota

B. The Work consists of:

1. The project consists of expanding and renovating the wastewater treatment facility at Mt

Rushmore National Memorial. The existing treatment process will be modified, existing process equipment and controls will be replaced, and facilities will be expanded to in-crease the treatment capacity of the facility from approximately 50,000 gallons per day to

100,000 gallons per day average flow. The project consists of the following major work components:

a. Building additions for new process equipment and staff facilities,

b. New treatment basin and improvements to existing basin,

c. New clarifier and improvements to existing clarifier,

d. New process equipment including screening, aeration, mixing, clarification, filtra-tion, disinfection, pumping systems, chemical feed, and solids processing,

e. New instrumentation, process controls, and SCADA improvements, MORU - 272051 01 11 00 - 2

f. Site work includes, grading and surfacing for access road improvements, new re-taining walls, and fencing,

g. Utility relocations or improvements to support new building and treatment sys-tems, and

h. Other work required for a complete project.

2. Work includes five (5) Bid Option:

a. Option Number 1 – Replace Solids Dewatering System.

1) Option Number 2 – Refinish Existing Clarifier and Aeration Basin Fiber-glass Covers.

2) Option Number 3 – Replace Air Compressors.

b. Option Number 4 – Provide Denitrifying Filter PLC.

c. Option Number 5 – Provide Aeration Basin Influent Grinder.

C. Project will be constructed under a single prime contract.

D. There will be a single final inspection and substantial completion for the contract.

2.3 WORK PHASES

A. Continuity of Treatment and Coordination with Owner’s Operations:

1. The Wastewater Treatment Facility continuously treats wastewater from contributing sources, 24 hours per day, seven days per week. It is imperative that within practical lim-its the present facilities continue to offer the same degree of treatment during the entire period of construction. Interruption of any part of the plant operations is subject to CO approval.

2. Perform the Work such that Owner’s facilities remain in continuous, satisfactory opera-tion during the Project. Schedule and perform the Work such that the Work does not:

impede Owner’s production or processes, create potential hazards to operating equipment and personnel, reduce the quality of the facility’s products or effluent, cause odors or other nuisances, does not affect the public health, safety, welfare, and convenience, and does not adversely affect the environment resulting in violation of Laws or Regulations.

3. Work shall be conducted in a logical sequence that allows the existing treatment facility to remain in operation and in compliance with the NPDES discharge permit at all times.

4. Any work impacting the treatment process must be pre-approved by the CO prior to pro-ceeding. Organize and plan construction activities so that the number and length of any required outages are minimized. The CO may deny requests for work impacting the treatment process if sufficient planning and contingencies are not in place.

5. The Contractor is responsible for all materials, labor, and costs associated with temporary facilities or other methods of ensuring continuous wastewater treatment. The NPS treat-ment staff will be responsible for operation of existing equipment and valves as required for the work in progress.

6. Provide the CO and treatment plant operators a minimum of 48 hours notice of any re-quested outage or work impacting the treatment process.

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7. Influent flow may be temporarily diverted to existing equalization basins. Use of equali-zation basins for construction activities is subject to CO approval. Total equalization vol-ume on site is 98,000 gallons.

8. NPS treatment staff will be responsible for the day-to-day operation of the existing facili-ties and process equipment until the new facilities and process equipment is ready to come online. At that point the General Contractor will take procession of the existing fa-cilities and process equipment. The NPS treatment staff will then take over day to day operation of the new facilities and process equipment while the GC is renovating the old process equipment and facilities.

B. Incorporate sequencing of the work into the project schedule. Sequencing requirements in-clude:

1. Site: Site work shall be coordinated with other work and the CO to ensure access is maintained. Deliveries and waste hauling can occur on a daily basis.

2. Aeration Basins: Work in the existing aeration basins will be completed after the new aeration basin is in operation.

3. Clarifiers: Work in the existing clarifier will be completed after the new clarifier is in operation.

4. Electrical and Controls: Maintain power and controls to existing equipment at all times.

Unless specified elsewhere, short duration outages of 2 hours or less will be allowed for tie-in to new systems.

2.4 CONTRACTOR USE OF SITE

A. General: Contractor shall have limited use of site for construction operations. Limit use of premises to areas within the Construction limits indicated on drawings. Do not disturb portions of Project site beyond areas in which the Work is indicated.

1. Limits: Confine constructions operations to areas within the construction limits and areas designated for laydown and storage.

B. Archeological Protection: The entire work site is an Archeologically Sensitive Area and will require 30-day advance notice to the Contracting Officer before ground disturbing site work.

Refer to Section 01 35 13.22 Archeological Protection.

C. Storage of Materials: Confine storage of materials to staging and storage areas shown on plans and to areas designated by the CO. Relocate stored materials and equipment that interfere with operations of Owner, other contractors, and others performing work for Owner.

D. Parking: All parking will be arranged and approved by CO. Contractor is to provide a Parking and Vehicle Management Plan. Confine parking to designated locations and as shown on the drawings. Company vehicles are allowed to park within the construction limits, and at storage and staging areas. Parking for employee vehicles will be designated to remote spaces in spe-cific lots within the park such as Visitor Lot 7. Shuttling of employees is the responsibility of the Contractor.

E. Stockpiling: Confine stockpiling to areas within construction limits, storage/staging areas and areas designated on the drawings and as designated by the CO. Stockpiling locations will be co-ordinated and approved by the CO.

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F. Site Occupancy: Owner will occupy the Site jointly with Contractor during construction for performance of Owner’s typical operations. Coordinate with Owner in all construction opera-tions to minimize conflicts between Contractor and Owner’s employees and others under

Owner’s control. The treatment plant receives deliveries and waste is hauled off site from time to time, possibly on a daily basis.

G. Preservation of Natural Features:

1. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

2. Provide temporary barriers to protect existing trees and plants and root zones.

3. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with Contracting Officer (CO) and remove agreed-on roots and branches that interfere with construction.

4. Trees that are cut down will remain the property of NPS. MORU plans to donate the downed trees to Native Nations to be cut and split into firewood.

5. Do not fasten ropes, cables, or guys to existing trees.

6. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

7. Provide fourteen (14) calendar days advance notice to the CO prior to grading areas con-taining ponderosa pine saplings, and more specifically grading on the east side of the site for the access road. Native Nations have expressed interest in replanting the ponderosa pine saplings that will be bulldozed, and NPS will need advance notice to coordinate sap-ling removal with them.

8. The Contractor will provide protection for large rocks/boulders and will provide 72-hour notice to the CO before removing large rocks/boulders. There are several boulders that

NPS would like to leave intact, if possible.

H. Bat Habitat Limitations

1. Removal of trees is restricted. Tree removal is only allowed between October 1, 2023 and April 1, 2024.

2. Contracting Officer’s approval is required prior to removal of any tree. Request approval

48 hours in advance of work.

3. Any tree removal needs after April 1, 2024 will need to be evaluated based on current

USFWS guidance (which is unknown at this time).

4. The project will not disturb hibernating northern long-eared bats in a known hibernacu-lum during hibernation. Disturbance could include entry into a known hibernacula or the following activities within 0.25 miles of a known hibernacula: prescribed fire, blasting, pile driving, drilling, and certain military operations. Smaller buffer sizes may be appro-priate depending on the intensity of the activity.

5. The project will not alter the entrance or interior environment of a known hibernaculum at any time of the year. Hibernacula alteration could include the following activities within 0.25 miles of a known hibernacula: prescribed fire, blasting, pile driving, drilling, certain pesticide use, and certain military operations. Smaller buffer sizes may be appro-priate depending on the intensity of the activity.

6. Incidental take of northern long-eared bat is prohibited if it occurs as a result of removing a known occupied maternity roost tree or removing trees within 150 feet of a known oc-cupied maternity roost tree during the pup season from June 1 through July 31 or as a re-sult of removing trees from within 0.25 mile of a hibernaculum at any time of the year.

7. If for any reason a bat is killed it MUST be reported to the CO and US Fish & Wildlife.

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I. Weed Management

1. Only weed-free fill material or soils will be used.

2. All vehicles will be cleaned prior to entering the park to remove exotic seeds.

a. Cleaning of Equipment: The Contractor shall ensure that prior to moving on to the

Project Area, all equipment, is free of soil, seeds, vegetative matter, or other debris that could contain or hold seeds. Ensure that all equipment has been pressure washed and is free of exotic species prior to start-up of operations and moving of equipment to Project Area. Equipment shall be considered free of soil, seeds, and other debris when a visual inspection does not disclose such material. Disassembly of equipment components or specialized inspection tools are not required.

3. Disturbed areas will be restored using a native seed mix or mature transplants. Species selection will be coordinated with the park. Seeds or mature plants that are locally sourced, with local genetics, are preferred.

4. Seeds and plantings will receive adequate care to ensure maturation, including mulching or watering as necessary.

5. Following construction, any exotic plants will be treated. Treatment must follow the prac-tices outlined in the 2005 NPS Northern Great Plains Exotic Plant Management Plan.

J. Driveways and Entrances: Keep driveways, entrances and NPS employee parking areas serving premises and nearby employee housing clear and available to Government employees, and emergency vehicles at all times. Do not use for parking or storage of materials.

1. Schedule deliveries to minimize use of driveways and entrances.

2. Schedule deliveries to minimize space and time requirements for storage of materials and equipment on-site.

3. Protect and maintain driveways and roadways located on NPS property that are used to access project site.

K. Construction Camp: Establishment of a camp within park will not be permitted.

L. Hauling Restrictions: Comply with legal load restrictions in hauling of materials. Load re-strictions on park roads are identical to state load restrictions with such additional regulations as may be imposed by the Park Superintendent. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent. A special permit will not relieve Contractor of liability for damage which may result from moving of equipment.

M. Bridge Restrictions: Identify jurisdictions, load restrictions, permit requirements, time and cal-endar restrictions as outlined.

2.5 PUBLIC USE OF SITE

A. The area will be closed to the public during construction.

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2.6 OCCUPANCY REQUIRMENTS FOR BUILIDINGS

A. Existing Buildings

1. Partial Government Occupancy: Government will occupy premises during entire con-struction period, with exception of areas under construction. Cooperate with Government during construction operations to minimize conflicts and facilitate Government usage.

Perform Work so as not to interfere with Government’s operations. Maintain existing ex-its, unless otherwise indicated.

a. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities. Do not close or obstruct walkways, corridors, or other occupied or used facilities without written permission from Contracting Officer.

b. The Government intends to use N203 Laboratory in the North Building as an afflu-ent testing laboratory throughout the project. Provide a temporary partition and maintain conditioning of this area. Provide CO notification 72 hours in advance of any planned disruptions in maintaining N203 Laboratory as a usable, occupiable area.

B. New Buildings

1. Government Occupancy of Completed Areas of Construction: Government reserves right to occupy and to place and install equipment in completed areas of building, provided such occupancy does not interfere with completion of the Work. Such placement of equipment and partial occupancy shall not constitute acceptance of the entire project.

a. Contracting Officer will prepare a Beneficial Occupancy letter for each specific portion of the Work to be occupied before Government occupancy.

b. Obtain a Certificate of Occupancy from National Park Service (NPS) before Gov-ernment occupancy.

c. Before partial Government occupancy, mechanical and electrical systems shall be fully operational, and required tests and inspections shall be successfully com-pleted. On occupancy, Government will operate and maintain mechanical and electrical systems serving occupied portions of building.

d. On occupancy, Government will assume responsibility for maintenance and custo-dial service for occupied portions of building.

2.7 CONDUCT OF OPERATIONS

A. Contractor shall conduct his operations in conformance with rules and regulations promulgated by the Secretary of the Interior for the National Park Service, and applicable park rules and reg-ulations prescribed by Park Superintendent.

B. Work on Saturdays, Sundays, Federal holidays or at night may not be performed unless stated in the Work Restrictions below or without prior consent from the Contracting Officer. Submit re-quests 3 business days in advance of the work to the Contracting Officer for approval.

C. No signs or advertisements (except those specified herein) shall be displayed on the construc-tion site or within the park unless approved by the Contracting Officer.

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D. All on-site (prime) contractor management staff are required to take a one-time cultural aware-ness and sensitivity training prior to mobilization to the job site facilitated by Mount Rushmore cultural resource staff. Training will be conducted in-person and last up to 3 hours. Coordinate with the Contracting Officer.

2.8 WORK RESTRICTIONS

A. On-Site Work Hours: Work shall be generally performed during normal business working hours of 6:00 a.m. to 6:00 p.m., Monday through Friday, except when otherwise indicated.

1. Weekend Hours: Same as work week hours.

2. Hours for Core Drilling and other loud work limited to between 9:00 a.m. and 5:00 p.m.

B. Existing Utilities

1. Existing Utilities: Notify Contracting Officer and utility companies of proposed locations and times for excavation.

2. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

3. If damage occurs to an unknown utility, repair utility. An equitable adjustment will be made in accordance with the Changes clause of the contract.

C. Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Govern-ment or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

1. Notify Contracting Officer not less than three business days in advance of proposed util-ity interruptions.

2. Do not proceed with utility interruptions without Contracting Officer’s written permis-sion.

3. Hours and length of Utility Shutdowns: Coordinate length with Contracting Officer.

D. Nonsmoking Building/Tobacco Use/Vaping: Tobacco use and vaping is restricted to inside of vehicles.

2.9 SPECIAL CONSTRUCTION REQUIREMENTS

A. Project Website: A project website administered by NPS will be used for purposes of managing communication and documents during construction stage.

1. See Section 01 31 00 "Project Management and Coordination" for requirements on using

Project Website.

B. There are specific requirements and restrictions concerning tree trimming and removal. See

1.4.F. Coordinate all tree work with Contract Officer.

C. Draining and Cleaning of Conduits, Tanks, and Basins:

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1. Contractor shall dewater process tanks, basins, channels, and conduits (including piping) as needed for work in existing facilities. Flush, wash down, remove debris, and clean work areas as needed for work to proceed.

2. Contractor shall remove liquids and solids and dispose of them at appropriate location at the Site as directed by Owner. Unless otherwise specified or indicated, contents of tanks, basins, and conduits (including piping) undergoing modifications shall be transferred to existing process tanks or conduits at the Site with capacity sufficient to accept such dis-charges, using hoses, temporary piping, temporary pumps, and other means provided by

Contractor.

D. Tie-Ins and Shutdowns:

1. Coordinate tie-ins of new equipment, processes, or piping and shutdowns with Owner.

2. Complete to the extent possible, prefabrication of piping and other assemblies prior to commencing the associated shutdown.

3. Work that may interrupt normal operations shall be accomplished at times convenient to

Owner.

2.10 SOILS INVESTIGATION REPORT

A. The report Report of Geotechnical Exploration, Wastewater Treatment Plant Expansion, August 17, 2022 prepared by American Engineering Testing is an appendix with this package.

B. In case of conflict between report and drawings or specifications, the drawings and specifica-tions govern.

1.1 WASTEWATER FACILITY FLOWS AND LOADS

A. The existing wastewater facility flows and loadings and typical waste amounts are listed below. The information is provided to assist the Contractor in understanding existing operations that are to re-main in service throughout construction.

Existing Wastewater Treatment Plant Flows and Loadings

Parameter Value

Average Day Flow 37 gallons per minute

Peak Day Flow 56 gallons per minute

Peak Flow to Equalization 448 gallons per minute

Biochemical Oxygen Demand (BOD) 475 mg/L

Total Suspended Solids 450 mg/L

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Ammonia-Nitrogen 70 mg/L

Expected Waste Solids During Construction Timeframe

Parameter Value

Wet Tons of Waste Sludge 500 lbs./day (20% solids)

Volume of Influent Screenings 0.5 CY/day

Refer to equipment specifications for installation requirements and contractor’s responsibilities for handling and disposing of waste while equipment is out of service for construction related purposes.

B. The wastewater treatment facility’s discharge is permitted under a National Pollution Discharge

Elimination System (NPDES) Permit. The facility is required to comply with the NPDES require-ments continuously through construction. Any work that may impact treatment facility effluent char-acteristics must be pre-approved by the owner.

PART 3 - PRODUCTS (NOT USED)

PART 4 - EXECUTION (NOT USED)

END OF SECTION 01 11 00

MORU - 272051 01 26 01 - 1

CONTRACT MODIFICATION PROCEDURES

NPS DSC Division 1 Specifications National Park Service (NPS) - Denver Service Center (DSC) | 1-27-21

BY USING NPS DSC DIVISION 1 SPECIFICATIONS, YOU ACKNOWLEDGE YOU READ, UNDERSTAND, AND WILL FORMAT EDITS ACCORDING TO NPS DSC DIVISION 1 SPECIFICATIONS INSTRUCTIONS.

A. MOUNT RUSHMORE NATIONAL MEMORIAL PMIS No. 272051

SECTION 01 26 01 – CONTRACT MODIFICATION PROCEDURES

PART 2 - GENERAL

2.1 SUMMARY

A. Section consists of administrative and procedural requirements for contract modifications.

2.2 DEFINITIONS AND ALLOWANCES

A. Home Office Overhead: Costs incurred in support of all of a contractor’s projects and not attributable to a specific job. The cost for home office overhead is only allowed as a percentage of all direct work excluding profit. The following items represent allowable home office overhead costs identified in Part 31 of the Federal Acquisition Regulation (FAR):

1. Rent

2. Utilities

3. Furnishings

4. Office equipment

5. Executive and management staff not exclusively assigned to the project

6. Support, accounting, and administrative staff

7. Preparation of cost proposals, estimating, and schedule analyses connected with

Modifications

8. Estimating and preconstruction services

9. Mortgage costs

10. Real estate and corporate taxes

11. Automobile maintenance and travel costs for home office personnel

12. Home office insurances i.e., structure, automotive, umbrella, flood, etc.

13. Depreciation of equipment and other assets

14. Home office supplies (paper, staples, etc.)

15. Legal services

16. Accounting and data processing

17. Professional fees/registration

B. General Conditions (Field Office Overhead): Management and administrative costs incurred on site for the designated project. Costs associated with preparation of modifications will not be allowed. Costs for these items are to be included only in the general conditions of the modification estimate. Only in the case of a contract time extension are additional general conditions included in modifications. The following items, if applicable, are considered allowable costs for calculating General Conditions:

https://www.nps.gov/dscw/publicforms.htm#div1

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1. Project Manager (PM), Assistant Project Manager

2. Superintendent, Assistant Superintendent

3. Quality Control, Safety Officer, Environmental Manager, etc.

4. Engineers

5. Travel, lodging, and per diem (as established by Federal Travel Regulations)

6. Scheduling

7. Field Office Trailers and associated temporary utilities

8. Field office supplies

a. Mailing and couriers

b. Reproduction costs

c. Storage

d. Phones

e. Computers

f. Copiers

9. Personal vehicles i.e. Superintendent Pickup trucks

C. General Requirements: Costs directly associated with the project and are necessary to perform the actual work of the modification. These costs shall be shown as direct costs in the estimate.

The following items, if applicable, are considered allowable costs for calculating General

Requirements:

1. Hoisting

2. Material handling

3. Temporary fencing

4. Port-a-lets

5. Trash removal, dumpsters

6. Barricades

7. Small tools

8. Safety supplies

9. Scaffolding

10. Daily cleaning

11. Traffic control

12. Temporary signage

13. Temporary heating and power

D. Personnel Costs: Costs included in the modification must only be for General Conditions staff and workers actually present and working on project site. Modification costs for salaried workers are only allowed within the structure of a 40-hour week and no overtime or holiday pay will be allowed.

1. Worker Hourly Rates are costs directly associated with the individual worker and consist of the following:

a. Base Rate: The hourly rate paid directly to the worker

b. Labor Burden: Employer payments of all applicable burdens; includes insurance and taxes the business must pay on behalf of the worker to government entities and educational forums, such as:

1) Social Security

MORU - 272051 01 26 01 - 3

2) Medicare

3) Workers Compensation – Policy and company calculation to be made available.

4) Federal Unemployment Tax Act (FUTA) - Cap Rate and percentage to be proportionally allocated over one year.

5) State Unemployment Tax Act (SUTA) - Cap Rate and percentage to be proportionally allocated over one year.

6) Union agreement costs - Other costs required under an enforceable collective bargaining agreement.

c. Fringe Benefits: Various non-wage compensations provided to employees such as:

1) Health Care Insurance Premiums

2) Cell Phone

3) Clothing

4) 401K and Pensions

5) Vehicle allowances

6) Gas allowance

7) Life insurance premiums

8) Disability insurance

9) Other Fringe Benefits required under an enforceable collective bargaining agreement

E. Bonuses or Deferred Compensation: No Bonus or Deferred Compensation will be allowed within any components of pricing including Home Office Overhead, General Conditions, General Requirements, Hourly Worker Rates, or the direct costs of work.

F. General Liability Insurance: An insurance policy that protects Contractor from claims resulting from bodily injury or property damage to a third party. Include as a separate line item within all modification proposals and provide a current insurance quote upon request.

G. Performance and Payment Bonds: A performance bond is a surety bond issued by an insurance company or bank to guarantee satisfactory completion of a project. The Payment Bond guarantees the Contractor will pay the labor and material costs incurred. Banks and Insurance companies charge a premium for individual project based on a sliding scale related to the size of the project. Include as a separate line item in modification proposals and provide current company bonding rates upon request.

H. Builder’s Risk Insurance: Covers the contractor’s loss due to fire, high winds, or other natural forces. Not reimbursed by the National Park Service (NPS) and shall not be included in modification proposals.

2.3 MODIFICATION PROPOSAL PRICING REQUIREMENTS

A.

A. General:

http://en.wikipedia.org/wiki/Employee http://en.wikipedia.org/wiki/Surety_bond http://en.wikipedia.org/wiki/Insurance http://en.wikipedia.org/wiki/Bank

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1. Proposal be received in the format and within the time frame specified in the Request for

Proposal (RFP) letter. Costs or delays resulting from failure of contractor to submit within the time frame specified will not be compensable.

2. Proposal shall be detailed with itemized lists of equipment, materials, labor, production rates, overhead, profit, and bond markup for each item. Labor costs must be itemized by craft and hourly rate, including Fringe Benefits and Labor Burden. If the costs of Fringe

Benefits and Labor Burden are not itemized, it is assumed they are included in the hourly rate shown, or contractor is not requesting reimbursement. Contractor may utilize the government provided Contractor Estimate Form, or their own form, provided that it contains the same information and level of detail as the Government’s form.

3. Requests for extensions of contract time as a result of change must be justified with a

Time Impact Analysis (TIA). Refer to Section 01 32 16 "Construction Schedule", for time impact analysis requirements. TIA and associated costs shall be received with the proposal by the date shown within the Request for Proposal letter. Contractor’s failure to submit within the specified time frame will be construed as the Contractor waiving right for additional time and no time extension will be allowed.

4. All supporting documentation used to justify the proposed modification will be made available to the Contracting Officer (CO) upon request.

5. Contractor shall review and approve all subcontractor/supplier pricing in detail for proper format, scope, production rates, and pricing prior to submission to NPS. All delay costs associated with not reviewing and approving subcontractor/supplier pricing will be borne by the Contractor.

6. All pricing and production rates within the estimate must be based on fair and reasonable pricing and cannot include built-in contingency.

B. Labor:

1. Contractor shall estimate cost of labor by itemizing each craft involved, indicating worker hourly rate (base rate + labor burden + fringe benefits) for each and itemizing hours required for each craft directly engaged in modification work. Any work proposed requiring overtime work or premium pay shall be itemized separately. Rates shall be in accordance with the Davis-Bacon Act as incorporated herein. Labor Burden may include payroll taxes, Social Security, unemployment insurances, workers compensation insurance, Federal Insurance Contributions Act (FICA), FUTA, and other direct costs resulting from Federal, State or local laws.

2. Itemize labor costs for equipment operators separate from equipment costs.

3. Labor cost for foremen shall only be costs for related work required for the modification.

C. Materials:

1. Estimated cost for materials shall include quotes from multiple sources. Material prices shall include applicable fees and credits, including but not limited to, sales tax, freight and delivery charges, and tax rebates.

2. No markup shall be applied to any material provided by NPS.

D. Equipment:

1. Equipment used for the project must be appropriately sized for work being performed.

2. Do not include costs for "miscellaneous tools and equipment", in your proposal for a replacement value of $500 or less. Costs shown in excess of $500 shall be broken out separately.

http://www.nps.gov/dscw/publicforms.htm#CP___PAGEID=396735|

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3. Regardless of ownership, rates to be used in determining equipment rental costs shall be the lowest cost from one of the following sources:

a. United States (U.S.) Army Corps of Engineers, Ownership and Operating Expense

Schedule (use latest edition and applicable region)

b. Construction Blue Book

c. Local equipment rental rates, documented by actual invoice charges, or itemized vendor quotes.

4. Estimated equipment rates shall include operating costs of all fuel, oil, lubrication, supplies, small tools, necessary attachments, ground engaging components, tires and tracks, routine repairs and maintenance (cost of major repair and overhaul is not allowed per Federal Acquisition Regulation (FAR) 31.105(d)(2)), depreciation, storage, insurance, and all incidentals. Mobilization, if applicable, may be included for equipment solely used on the modification work but must be listed separately.

5. Estimate full rate for equipment only for duration that equipment will be utilized to accomplish work of the modification.

6. Standby unit rates used in accordance with paragraph 1.3, D, 2, above. If the U.S. Army

Corp of Engineers is utilized then their standby rates prevail. If Bluebook or local equipment pricing is accepted, then 1/2 of equipment costs minus any operating costs, major repair and overhaul will be accepted.

7. If equipment is in standby mode due solely to a documented NPS delay, established standby rate shall apply from the first day of the delay.

8. Equipment not used and on job site for up to five consecutive days may be classified at standby rates, provided the equipment is or has been used solely to perform work on the modification and will be necessary to complete additional modification work. Equipment still on the jobsite but not in use after five consecutive days will not be considered in the modification pricing.

9. Requests for compensation for equipment stand by time must be justified, documented and itemized separately.

10. The estimated timeframe (daily, weekly, monthly) for use of the equipment must reflect the lowest cost to the Government.

E. Establishment and Application of Overhead and Profit Percentages:

1. Home Office Overhead and Profit (OH&P) shall be applied to direct costs only. Profit shall not be applied to overhead amounts; and overhead shall not be applied to profit.

Home office overhead shall contain only allowable, allocable, and reasonable costs per the contract documents and FAR Part 31. Profit percentages are based on risk factors found in FAR Part 31which have been applied to the specific type of work included in this project. Negotiated rates shall not exceed the following percentages for OH&P for contractor self-performed work:

Overhead………………10%

Profit…………………..7.75%

2. Total aggregate limit of markup (OH&P) for Contractor and Subcontractors on modification work shall not exceed 25%. The NPS will not be responsible for allocation of percentages between contractor and subcontractors at any tier.

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3. If Contractors form a partnership, partnership may only receive home office overhead and profit in same amount as an individual Contractor (refer to paragraph 1.3,E,1 above).

It is the responsibility of the partners to decide on division of revenue.

4. Combined Increases and Decreases: On proposals involving both increases and decreases in the Contract Price, overhead and profit mark-ups are required on net increases and deducted on net decreases.

5. At no time can profit be calculated on Overhead or itself, it must be calculated on direct costs of work only.

PART 3 - PRODUCTS

PART 4 - EXECUTION

END OF SECTION 01 26 01

MORU - 272051 01 27 00 - 1

DEFINITION OF CONTRACT LINE ITEMS

NPS DSC Division 1 Specifications National Park Service (NPS) - Denver Service Center (DSC) | 1-27-21

A. MOUNT RUSHMORE NATIONAL MEMORIAL PMIS No. 272051

SECTION 01 27 00 – DEFINITION OF CONTRACT LINE ITEMS

PART 2 - GENERAL

2.1 SUMMARY

A. Section explains in general, what is and is not included in a contract line item, and limits or cut-off points where one item ends and another begins.

B. If no contract line item exists for a portion of work, include costs in a related item.

PART 3 - PRODUCTS (NOT USED)

PART 4 - EXECUTION

4.1 LIST OF CONTRACT LINE ITEMS

A. Contract Line Item Number 1 – Rehabilitate and Expand Wastewater Treatment Plant.

1. This item consists of rehabilitation and expansion of the wastewater treatment plant.

Line Item 1 includes all work except for work specifically noted as bid options.

2. No separate measurement for payment will be made for the lump sum item.

3. Payment will be made at the contract lump sum price.

B. Option Number 1 – Replace Solids Dewatering System.

1. This item consists of replacing the existing solids watering equipment located in the

South Building with new equipment as shown on the drawings. New equipment to be provided under Option 1 includes dewatering centrifuges (03-CEN-1 & 03-CEN-2), solids conveyors (03-CNV-1, 03-CNV-2, & 03-CNVT-3), polymer makeup units (03-

CPB-1 & 03-CPB-2), centrifuge feed pumps (03-CFP-1 & 03-CFP-2), centrifuge feed grinder (03-CFGR-1), and piping modifications associated with this work. The base bid excludes this work and the existing dewatering system will remain if Option 1 is not awarded.

2. No separate measurement for payment will be made for the lump sum item.

3. Payment will be made at the contract lump sum price.

C. Option Number 2 – Refinish Existing Clarifier and Aeration Basin Fiberglass Covers.

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DEFINITION OF CONTRACT LINE ITEMS

1. This item consists of refinishing the existing fiberglass dome covers located over the existing aeration basin and clarifier. The work to be completed as part of Option 2 is defined is Specification Section 09 01 91. The base bid excludes this work and the existing covers will not be refurbished if Option 2 is not awarded.

2. No separate measurement for payment will be made for the lump sum item.

3. Payment will be made at the contract lump sum price.

D. Option Number 3 – Replace Air Compressors.

1. This item consists of replacing the existing air compressors located in the North Building and South Building with new equipment as shown on the drawings. New equipment to be provided under Option 1 includes (02-COM-1 & 03-COM-1). The base bid excludes new air compressors and the existing equipment will remain if Option 3 is not awarded.

2. No separate measurement for payment will be made for the lump sum item.

3. Payment will be made at the contract lump sum price.

E. Option Number 4 – Provide Denitrifying Filter PLC.

1. This item consists of providing a control package to allow the effluent filters to operate as denitrifying filters. Refer to Specification Section 46 53 44 for control system requirements. The base bid excludes the denitrification control package.

2. No separate measurement for payment will be made for the lump sum item.

3. Payment will be made at the contract lump sum price.

F. Option Number 5 – Provide Aeration Basin Influent Grinder.

1.…