Specifications.pdf

WASHINGTON

SUBURBAN

SANITARY COMMISSION

PROJECT NO.

PROJECT NAME

LOCATION

23303290A

Anacostia II WWPS Surge Tanks Removal

1700 Andalusia Lane

Capitol Heights, MD 20743

ENGINEERING AND CONSTRUCTION

CONTRACT SPECIFICATION BOOK

BID READY

April 2026

Division 03

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04/21/2026

04/21/2026

THIS PAGE INTENTIONALLY LEFT BLANK.

© 2025 CDM Smith 23303290A All Rights Reserved April 2026

Table of Contents Anacostia II Wastewater Pumping Station Surge Tanks Removal 000110 - 1 Capital Heights, Maryland Issued for Bid

TABLE OF CONTENTS

Division Section Title

DIVISION 01 – GENERAL REQUIREMENTS

01025 01110 01150 01320 01330 01450 01500 01570 01600 01630 01640 01650 01740 01770

MEASUREMENT AND PAYMENT

SUMMARY OF WORK

SITE CONDITIONS

CONSTRUCTION SCHEDULE – CRITICAL PATH METHOD (CPM)

SUBMITTAL PROCEDURES

QUALITY CONTROL

TEMPORARY FACILITIES AND CONTROLS

TEMPORARY EROSION AND SEDIMENT CONTROL

COMMON PRODUCT REQUIREMENTS

SUBSTITUTION PROCEDURES

MANUFACTURERS FIELD SERVICES

EQUIPMENT TESTING AND STARTUP

WARRANTIES

PROJECT CLEANUP

DIVISION 02 – SITEWORK

02030 02090 02200 02220 02240 02260 02300 02318 02731 02740 02755 02915 02920

GEOTECHNICAL INSTRUMENTATION AND MONITORING

LEAD-BASED PAINT ABATEMENT

SITE CLEARING

DEMOLITION

DEWATERING

SHORING

EARTHWORK

FLOWABLE FILL

HEALTH AND SAFETY

ASPHALT PAVING

SIDEWALKS

LANDSCAPE GRADING

TURF AND GRASSES

DIVISION 03 – CONCRETE

03100 CONCRETE FORMWORK

DIVISION 13 – SPECIAL CONSTRUCTION

13285 ABATEMENT MONITORING

DIVISION 15 – PROCESS INTERCONNECTIONS

15062 15101 15103 15108

COUPLINGS, ADAPTERS, AND SPECIALS FOR PROCESS PIPING

VALVES FOR CONTROL VALVE VAULTS

DUCTILE IRON FITTINGS

COMMON REQUIREMENTS FOR PROCESS VALVES

Table of Contents Anacostia II Wastewater Pumping Station Surge Tanks Removal 000110 - 2 Capital Heights, Maryland Issued for Bid

15116 15202

COMBINATION AIR VALVES FOR WASTEWATER SERVICE

PROCESS VALVES AND OPERATORS

APPENDIX A GEOTECHNICAL INVESTIGATION REPORT – WSSC ANACOSTIA WWPS SURGE

TANK REMOVAL

APPENDIX B ANACOSTIA WWPS – SURGE TANKS LIMITED HAZARDOUS MATERIAL

SURVEY

END OF TABLE OF CONTENTS

Measurement and Payment Anacostia II Wastewater Pumping Station Surge Tanks Removal 01025 - 1 Capital Heights, Maryland Issued for Bid

SECTION 01025

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.01 SCOPE OF WORK

A. This Section includes specifications for the measurement and payment of the various elements of the Work; with provisions applicable to lump sum prices, unit prices, and allowances, if applicable.

B. The Contractor shall receive no payment for any portion of the work until it is installed. The only exception to this is payment for stored materials on site if the Contract provides for the payment of stored materials. Partial payment may be requested for items partially installed.

1.02 LUMP SUM ITEMS

A. Lump Sum measurement will be for the entire item, unit of work, structure, or combination thereof, as specified and as indicated in the Schedule of Prices in the Bid Form. Measurement and payment for all bid items indicated as Lump Sum shall include the cost of all labor, materials and equipment necessary to furnish, install, clean, test, and place each bid item into operation; including permitting, general conditions, overhead and profit.

B. Progress payments will be based on the cost loaded schedule, prepared by the Contractor and approved by the Owner/Engineer before acceptance of the first Application for Payment.

C. In order for the Contractor to request progress payments against Lump Sum items, Contractor shall provide a breakdown in sufficient measurable detail that is acceptable to the Owner/Engineer.

D. Measurement

1. Measurement shall be based on the estimated percent complete of each Lump Sum item based on the cost loaded schedule.

E. Payment

1. Payment will be made at the lump sum price proportional to the completion percentages approved by the Owner/Engineer.

1.03 UNIT PRICE ITEMS

A. Quantity and measurement estimates stated in the Schedule of Prices in the Bid Form are estimates for bidding purposes only. Actual payments shall be based on actual quantities installed, in-place, as measured and/or verified by the Owner/Engineer.

B. Unless otherwise provided in the General Conditions, the bid unit prices shall be in effect throughout the contract duration, regardless of variances between the estimated quantities and the actual installed quantities.

Measurement and Payment Anacostia II Wastewater Pumping Station Surge Tanks Removal 01025 - 2 Capital Heights, Maryland Issued for Bid

C. The Contractor shall make no claim, nor receive any compensation, for anticipated profits, loss of profit, damages, or any extra payment due to any difference between the amounts of work actually completed, or materials or equipment furnished, and the estimated quantities

D. Contractor shall assist Owner/Engineer by providing necessary equipment, workers, and survey personnel as required to measure quantities.

E. Measured quantities shall be rounded to the nearest whole integer, unless the value of the unit price exceeds $100, in which case measured quantities shall be rounded to the nearest half unit.

F. Measurement

1. Measurement for progress payment shall be made by, or approved by, the Owner/Engineer based on the estimated effective quantity installed. The effective quantity installed represents the actual units or quantities installed, adjusted for incomplete elements or components.

2. Unless otherwise provided for in the Schedule of Prices in the Bid Form, unit price items are all-inclusive of all related work, direct and indirect, to provide a complete and functional item. For example, underground pipe installation would include pipe, trenching, shoring, dewatering, bedding, installation, backfill, testing, flushing, disinfection, and commissioning; including all labor, materials and equipment necessary to furnish, install, clean, test, and place into operation; including permitting, general conditions, overhead and profit.

3. The final measurement shall be based on actual quantities, jointly measured by Contractor and Owner/Engineer, complete, fully, tested and placed into service.

G. Payment

1. Progress payments shall be in accordance with the contract documents based on estimated effective quantities installed, paid at the bid unit price.

2. The final payment shall be based on actual quantities, fully installed, tested and placed into service, paid at the bid unit price.

PART 2 BID ITEMS

A. Anacostia II Wastewater Pumping Station Surge Tanks Removal

1. Method of Measurement.

a. Lump Sum

2. Basis of Payment.

a. Payment of the lump sum price for this item shall include all work associated with demolition of the surge tanks, protecting the location and personnel from lead contamination that arises due to tanks demolition, the installation of the Combination Air Valves, all tree removal to the root ball, required dewatering and drainage of excavation, replacement of the curb and gutter, replacement of sidewalk, site restoration and asphalt pavement restoration. Payment shall constitute full compensation for all labor, materials, tools, equipment, incidentals necessary, testing, Measurement and Payment Anacostia II Wastewater Pumping Station Surge Tanks Removal 01025 - 3 Capital Heights, Maryland Issued for Bid training, startup, commissioning, and all required appurtenances and associated work to complete the scope of the work as detailed in the contract plans and specifications.

b. Tree removal shall include all labor, equipment and materials required for removing and disposing of all trees, its root balls, logs, rubbish, and other objectionable material and all other Items necessary to complete the Work as shown and specified but not included for payment under other Bid Items.

c. Dewatering and Drainage shall be full compensation for all labor, equipment, materials and incidentals necessary to handle ground water and surface water as specified in Section 02240 including but not limited to design and permitting of dewatering system, sinking well points, furnishing, installing and maintaining pumping systems including all pumps, piping, casing and other appurtenances, filter sand required for underdrains or pumping systems, furnishing, installing and maintaining observation wells and all else incidental thereto for which separate payment is not provided under other Bid Items. Basic trench dewatering which does not require a design, permitting, deep wells, well points, or complex pumping will be considered incidental to Earthwork.

d. Demolition shall include miscellaneous site demolition, the removal of sludge wastes, checking the watertightness of the 24” plug valves, demolition and disposal of the surge tanks, demolition and disposal of: associated piping, valves, platforms, grating, miscellaneous structures, associated hand rails, steps/ladders, grating, all associated electrical and instrumentation work, all associated electrical and instrumentation equipment; removal of concrete, protecting all utilities and associated structures in the vicinity, demolition and disposal of the existing curb and gutter, demolition and disposal of the sidewalk, demolition and disposal of the asphalt, excavation to the extent shown, excavation supports as needed, geotechnical monitoring, backfilling and compaction of the excavation, cutting capping of goosenecks, testing the functionality of the existing plug valves, installing the required blind flanges, all required work to abandon in the place the surge tanks and the access tunnel below Elevation 10. This work shall also include the installation of the required bulkheads, installation of core holes, filling the surge tanks’ access tunnel with flowable fill and filling the operation area beneath each surge tank with flowable fill. Work shall include demolishing the surge tanks with lead paint intact, providing safety measures to prevent exposure of soils, site, personnel to lead paint resulting from the demolition activities.

e. Full depth asphalt replacement shall include cleaning and priming the edges of the existing pavement; compacting the subgrade, furnishing and installing crushed stone base and preparing the surface for pavement; furnishing and placing the binder course, furnishing and placing tack coat; furnishing, placing and maintaining final pavement to the dimensions shown on the Drawings; raising and adjusting manhole covers to final grade as necessary; compaction of all pavement; maintaining and repairing damaged pavement throughout the warranty period; and all else incidental thereto.

f. Sidewalk replacement shall include all required surface cleaning; adjustment of grade as required, installation of forms, placement of curb and gutter, finishing, spraying with approved curing product, protection from inclement weather, installing approved expansion joints, and all else incidental thereto.

g. Site restoration shall include any required adjustment of grade as required, seeding, associated maintenance and protection, and all else incidental thereto.

h. Combination Air Valve installation work shall include all work required to isolate the pumps, the removal of existing 30” 90-degree vertical bends, installation of new Ductile Iron 30” Tees with blind flange, installation of new 2” nipples to the blind

Measurement and Payment Anacostia II Wastewater Pumping Station Surge Tanks Removal 01025 - 4 Capital Heights, Maryland Issued for Bid flange, installation of new 2” plug valves, installation of new 2” spool piping, installation of the new Combination Air Valves, installation of the new 1” PEX-a drain lines and all associated fittings, installation of associated pipe supports, all associated painting and coatings, testing and commissioning.

2.02 MISCELLANEOUS WORK

Miscellaneous Work Items are for work items that may or may not be utilized for this project.

Work on the miscellaneous items shall be completed only upon the approval of WSSC, except as noted herein. The Contractor shall request work authorization for these work items a minimum of 30 days before start of miscellaneous work.

A. Soils Testing – First 12 inches

a. Soils testing shall be measured on a per each basis for the testing of the first 12 inches of soil around the surge tanks for lead.

b. Measurement for soils testing shall include obtaining six (6) soil samples, to a depth of 12 inches, at locations identified by the Engineer, sending the soil samples to a certified laboratory to complete total lead testing in the soil samples, completing the required chain of custody, and submitting the soils testing report.

Payment shall be made as determined by the Owner/Engineer on a per each basis.

2. Basis of Payment:

a. Payment shall be full compensation for furnishing all the necessary labor, equipment, tools and materials required for completing the soil testing, submitting the test reports, and all incidental Work required to complete the Work but not included for payment under other Bid Items.

B. Additional Soils Testing – 24 inches deep

Additional soils testing may be required based on the test results from Soils testing. Additional soils testing may be done only upon the request or written approval of WSSC.

a. Additional Soils testing shall be measured on a per each basis for the testing of the 24 inches of soil around the surge tanks for lead.

b. Measurement for additional soils testing shall include obtaining up to six (6) soil samples, to a depth of 24 inches, at locations identified by the Engineer, sending the soil samples to a certified laboratory to complete total lead testing in the soil samples, completing the required chain of custody, and submitting the soils testing report. This pay item shall only be used when authorized in writing by the Engineer. The need to conduct additional testing shall be based on the test results from testing the first 12 inches of the soil.

Payment shall be made as determined by the Owner/Engineer on a per each basis.

Measurement and Payment Anacostia II Wastewater Pumping Station Surge Tanks Removal 01025 - 5 tools and materials required for completing the soil testing, submitting the test reports, and all incidental Work required to complete the Work but not included for payment under other Bid Items.

C. Lead Paint Removal

Lead paint removal prior to demolition of the surge tanks shall be started only upon WSSC’s written approval. The Contractor shall submit written justification detailing the reasons why the surge tanks can not be demolished and disposed of with steps in place to contain any lead contamination.

a. Lead Paint Removal shall be measured on a lump sum basis for the removal of lead paint prior to demolition of the tanks.

b. Measurement for Lead Paint Removal shall include all required inspection activities, developing and implementing a lead health and safety plan, the removal of lead based paint from the surge tanks, protecting the soils beneath the surge tanks from lead contamination, disposal of the removed lead in compliance with local, state and federal requirements, implementing all required health and safety measures, developing and implementing: the communication plan, a containment plan, all other associated plans; generating the required test reports and waste documentation , providing all required sampling and testing, and all required clean up, monitoring and disposal activities.

c. Payment shall be made as determined by the Owner/Engineer on a percent complete basis.

tools and materials required for lead paint removal from the surge tanks, Work required to complete the Work but not included for payment under other Bid Items.

D. Soils Disposal

Soils disposal shall be based on the test results from the soils testing and additional soils testing pay items. Soils disposal shall be done only upon the request or written approval of WSSC.

a. Soils Disposal shall be measured on a per ton basis for the removal of lead contaminated soils after demolition of the tanks, and its appropriate disposal. This pay item shall only be applicable when soils testing indicates lead contaminated soils. If no lead contamination is found, this pay item shall not be applicable.

b. Measurement for Soils Disposal shall include removal and appropriate disposal of lead contaminated soil around the surge tanks. The depth of the soils shall be as determined by the Engineer. The removed soil shall be subject to a waste

Measurement and Payment Anacostia II Wastewater Pumping Station Surge Tanks Removal 01025 - 6 Capital Heights, Maryland Issued for Bid characterization study as required by the landfill. The waste characterization study shall be completed by a certified laboratory, and the soil shall be disposed based on the results of the waste characterization study and the landfill’s requirements. Any lead contaminated soils shall be disposed in accordance with the prevailing local, state and national regulations without any additional costs to the Owner.

c. Payment shall be made as determined by the Owner/Engineer on a per ton basis. The contractor shall provide the landfill manifest/weight ticket confirming tonnage.

tools and materials required for excavating and disposing lead contaminated soils around the surge tanks, obtaining all required testing, permits and all incidental Work required to complete the Work but not included for payment under other Bid Items.

b. No payment will be made for removal and replacement of unsuitable soils resulting from improper abatement, improper excavation, or accidental over-excavation by the Contractor.

E. Temporary Line Stop Use of temporary line stop(s) shall be authorized by WSSC only if the existing plug valves can not be used to isolate the surge tanks. The Contractor shall obtain written authorization prior to use of temporary line stops.

a. Line Stop shall be measured on a per each basis (up to 8) for the installation of a temporary line stop when directed in writing by the Engineer and Owner. The need for temporary line stop(s) installation shall be based on the 24 inch plug valves upstream of the surge tanks not providing a watertight closure and written authorization.

2. Basis of Payment.

a. Line Stop shall be full compensation for furnishing all the necessary labor, equipment, tools and materials required for installation of tees, excavation to expose the 24” Ductile Iron mains, installation of temporary line stop(s) to isolate the 24” mains feeding the surge tanks, testing the line stops, removal of the temporary line stops, blind flanging the new tees, encasing the new tees on all sides in a minimum of 6 inches of flowable fill, backfilling, compaction, testing and all other associated work.

b. Payment shall only be made for line stop(s) that were authorized in writing by the Engineer and Owner.

PART 3 EXECUTION – NOT USED

END OF SECTION

23303290A April 2026

Summary of Work Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 1 Capital Heights, Maryland Issued for Bid

SECTION 01110

SUMMARY OF WORK

1.1 DESCRIPTION

A. Section includes general requirements for work.

1. Coordination of work with other Contractors that may be on the job site or in the vicinity.

1.2 COMMISSION WORK SCHEDULE

A. The Commission observes five (5) day work week, Monday through Friday, eight (8) hours a day.

B. The Commission observes the following holidays:

1. New Year's Day.

2. Martin Luther King's Birthday.

3. Presidents' Day.

4. Memorial Day.

5. Juneteenth Day.

6. Independence Day.

7. Labor Day.

8. Columbus Day/Indigenous Peoples’ Day.

9. Veterans Day.

10. Thanksgiving Day and the following Friday.

11. Christmas Day.

12. State and National Election Days.

13. Inauguration Day.

C. Permission to Work.

1. The Contractor shall notify the Engineer at least two (2) working days prior to when the Contractor intends to actually start the on-site activity.

2. Except as noted herein, the Contractor will not be permitted to do any Work which requires the services of the Commission's inspection and supervisory forces for more than eight (8) hours a day nor on Commission holidays or weekends, unless authorized by the Engineer in writing.

3. Do not work in roadways during peak vehicular traffic hours following jurisdictional restrictions and requirements contained elsewhere in the Contract Documents.

4. If the Contractor deems it necessary to work on Saturdays, Sundays, Holidays or longer than eight (8) hours per day in order to comply with the project construction

Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 2 Capital Heights, Maryland Issued for Bid schedule, or because of emergency, the Contractor shall request permission from the Engineer to do so.

a. If the Contractor receives written authorization from the Engineer to work outside the schedule of normal working hours as described above, costs incurred by the Commission arising from such lengthening of hours including the furnishing of Inspectors, Resident Engineer, or Project Manager or others deemed necessary by the Engineer shall be the Contractor's responsibility and the cost thereof shall be deducted by change order from monies owed the Contractor. The following hourly rates shall apply. Contractor shall pay other items at actual cost.

Civil Inspector $214.87 Electrical Inspector $240.10 Mechanical Inspector $240.10 Project Manager $344.77 Resident Engineer $250.00

1.3 SPECIFICATION STYLE

A. These specifications are written in imperative mood and streamlined form.

B. This imperative language is directed to the Contractor, unless specifically noted otherwise.

C. The words "shall be" are included by inference where a colon (:) is used within sentences or phrases.

1.4 REFERENCE DOCUMENTS

A. Applicable Codes, Specifications and Standards: References to codes, specifications and standards in the Contract Documents shall mean and are intended to be, the latest edition, amendment and/or revision of such reference standard in effect as of the date of Bid Opening.

B. Documents on the Site: The Contractor shall maintain on the site copies of appropriate documents including codes, specifications, permits and reference standards referred to in the Contract Documents.

C. Electronic Documentation.

1. Use e-builder for submitting, storing and reviewing electronic documentation.

Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 3

1.5 ABBREVIATIONS AND SYMBOLS

A. Abbreviations used for technical society, institution, association, or governmental authority references in Specifications:

Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 4

Abbreviations and Symbols AA Aluminum Association AAMA Architectural Aluminum Manufacturer's Association AAN American Association of Nurserymen AAR Association of American Railroads AASHTO American Association of State Highway and Transportation Officials ACI American Concrete Institute ACPA American Concrete Pipe Association ADA Americans with Disabilities Act AGA American Gas Association AGMA American Gear Manufacturer's Association AI Asphalt Institute AIA American Institute of Architects AIEE American Institute of Electrical Engineers AISC American Institute of Steel Construction AISI American Iron and Steel Institute ALS American Lumber Standards AMCA Air Movement and Control Association ANSI American National Standards Institute APA American Plywood Association AREMA American Railway Engineering and Maintenance-of-Way Association ARI Air-Conditioning, Heating, and Refrigeration Institute ASA American Standards Association, Inc.

ASCE American Society of Civil Engineers ASHRAE American Society of Heating, Refrigerating and Air-Conditioning

Engineers, Inc.

ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials AWG American Wire Gauge AWPA American Wood Preservers Association AWPI American Wood Preservers Institute AWS American Welding Society AWWA American Water Works Association BOCA Buildings Officials Code Administration International, Inc.

CRSI Concrete Reinforcing Steel Institute DEP Department of Environmental Protection (Montgomery County) DNR Department of Natural Resources DIPRA Ductile Iron Pipe Research Association EPA Environmental Protection Agency (Federal) FCC Federal Communications Commission FS Federal Specifications or Federal Standards ICEA Insulated Cable Engineers Association IEEE Institute for Electrical & Electronic Engineers

Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 5 Capital Heights, Maryland Issued for Bid

Abbreviations and Symbols IES Illuminating Engineering Society of North America ISA Instrument Society of America MBMA Metal Building Manufacturers Association Standards MCDPWT Montgomery County Department of Public Works and Transportation MDE Maryland Department of the Environment MDOT Maryland Department of Transportation MIL Military Specifications MNCP&PC Maryland National Capital Park and Planning Commission MOSH Maryland Occupational Safety and Health MPS Maryland Park Service MSCS Maryland Soil Conservation Service MSHA Maryland Department of Transportation State Highway

Administration NACE NACE International (Formerly, National Association of Corrosion

Engineers) NAPCA National Association of Pipe Coating Applicators NBFU National Board of Fire Underwriters NEC National Electrical Code NEMA National Electrical Manufacturer's Association NESC National Electric Safety Code NETA National Electric Testing Association, Inc.

NFC National Fire Code NFPA National Fire Protection Association NIST National Institute of Standards and Technology NPS National Park Service NSF NSF International (Formerly, National Sanitation Foundation) OSHA Occupational Safety and Health Administration PCA Portland Cement Association SCS Soil Conservation Service SDR Standard Dimensional Ratio SSPC Steel Structure Painting Council UBC Uniform Building Code, International Conference of Building

Officials ULI Underwriter's Laboratories Incorporated USSG United State Standard Gauge USSWG United States Steel Wire Gauge WSSC Washington Suburban Sanitary Commission

1.6 COMMISSION RESPONSIBILITIES

A. Land Acquisition, Rights-of-Way, and Permits:

1. The Commission will secure land and right-of-way necessary for carrying out and completing the Contract Work and obtain the following permits for construction:

Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 6

a. MDE Erosion and Sediment Control Permit.

2. A copy of each permit is in the attachments section of the specifications and shall be posted at the construction site by the Contractor.

3. Measurement and Payment:

a. Costs attributable to land agreement/permit compliance: Incidental to Contract.

B. Commission Supplied Material:

1. No materials will be furnished by the Commission.

C. Commission Furnished Equipment:

1. No equipment will be furnished by the Commission.

D. The Commission will establish an e-builder account to be used and assign Contractor representatives.

1.7 CONTRACTOR RESPONSIBILITIES

A. Permits:

1. Immediately upon receiving the Notice To Proceed, the Contractor shall submit applications for any permits that are required for this work but not listed in the contract documents.

2. Contractor is responsible for obtaining permits required to perform work except those provided by the Commission.

B. Commission Supplied Material: None.

C. Use of Premises and Offsite Work:

1. Any land and access thereto not furnished by the Commission that the Contractor deems necessary for the Contract Work, for temporary construction facilities, access and egress or for storage of materials shall be provided by the Contractor at no cost to the Commission. Operation and storage needs of the Contractor shall be confined to such additional areas as may be provided at the Contractor’s expense.

a. Obtain permits and written approvals from the appropriate jurisdictional agency and property owner for use of premises not furnished by the Commission as described herein, and of offsite areas which include offsite borrow pits and waste areas. Permits and approvals shall specify treatment of said areas during and at the completion of construction.

b. Furnish copies of permit and approval to the Engineer before utilization of the areas.

Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 7 Capital Heights, Maryland Issued for Bid

c. See Sections 01500 and 01570 for securing additional grading and sediment control permits.

2. The Contractor shall:

a. Not enter upon private property for any purpose without obtaining written permission from the property owner.

b. Letters of permission from property owners shall be filed with the Engineer before entering private property.

3. Public Utility Easement (PUE): Not entered upon unless a concurrent WSSC water and sewer easement and Work are shown on the Contract Drawings.

D. Loads on Structures: The Contractor shall not load nor permit any part of any structure to be loaded with weights that will endanger the structure, nor shall the Contractor subject any part of the Work to stresses or pressures that will endanger it. Provide calculations to show loading will not endanger structure, signed and sealed by a Maryland registered engineer.

E. Public Convenience:

1. Conduct work to ensure least possible obstruction to traffic and inconvenience to the

Commission, general public, and residents in vicinity of Work, and to ensure the protection of persons and property.

2. Keep fire hydrants on or adjacent to Work accessible to fire fighting equipment.

3. Make temporary provisions to ensure use of sidewalks and proper functioning of gutters, stormwater systems, drainage ditches, and culverts, and keep them free of obstructions.

F. Cutting and Patching:

1. Make cutting, fitting, and patching of Work that may be required to make its several parts come together properly and fit it to receive or be received by such other work.

2. Do not endanger any work by cutting, excavating or otherwise altering work.

3. Only cut, including holes in structural members, or alter work with written consent of

Engineer.

4. Engineer’s consent does not relieve responsibility for weakening of members as a result of cutting.

a. Correct any weakening.

G. Explosives:

1. Explosives: Blasting and the use of explosives shall not be allowed.

H. Measurements:

Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 8 Capital Heights, Maryland Issued for Bid

1. Contractor shall verify dimension shown on existing work and dimension required for new work to connect to existing work by actual measurement of existing work.

Any discrepancies between Contract Documents and existing conditions shall be referred to the Engineer before work affected thereby has commenced and associated work performed.

I. Dimensions at points of connection: Verified by actual field measurements. Before beginning work:

1. Perform test pits at each point of connection.

2. Refer discrepancies between Contract Documents and existing conditions to the

Engineer.

1.8 CONSTRUCTION STAKEOUT BY CONTRACTOR

A. Established baselines, bench marks or other necessary control points for the Contractor's use shall be provided on the Civil Sheets of the Contract Drawings.

B. Contractor shall verify established baselines, bench marks and/or other necessary control points provided on Contract Drawings. Any discrepancies between the Contract drawing and Existing Condition shall be referred to the Engineer before commencing work.

1. Perform stakeout from Contract Drawings control points (traverse, property lines and corners, and bench marks)

2. Contractor shall employ qualified and experienced personnel to provide stakeout.

3. Contractor shall furnish certification of competency and qualifications of employees to Engineer before commencing with Work.

C. Preserve and maintain and reset in proper position survey control points, bench marks, and baselines provided on the Contract Drawings.

1. Contractor shall provide protection of survey points, bench marks and baselines.

2. Contractor shall retain a Professional Surveyor licensed to practice in the State of

Maryland to reset points disturbed by Contractor's employees, equipment or neglect to the standards and requirements set per Part Three of the WSSC Pipeline Design Manual.

D. Notify Engineer of any construction stakeout deviations from the construction Drawings.

1. Discrepancies will be resolved under the Engineer's direction before proceeding with work.

E. For pipeline construction:

Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 9 Capital Heights, Maryland Issued for Bid

1. Stakeout test pits and furnish the Engineer with actual utility locations and elevations, or as otherwise approved by the Engineer.

2. Stakeout centerlines and offset lines with spacing of stations maximum of 50 feet (stakes, nails, crosses).

3. Stakeout intermediate points (P.C., P.T., structures, fittings, end of lines, and topographic changes) and as deemed necessary by the Engineer.

4. Submit grade sheets showing for each station the marked point elevation, invert elevation required and corresponding cut for both centerline and appropriate offset.

a. Each set of notes shall check within plus or minus 0.04 feet.

b. Use Contractor's Construction Stake Out Record form, see Standard Detail

M/10.0.

5. Flag stakes for protection to aid in their preservation and maintenance.

6. Perform other engineering and stakeout necessary for setting of batterboards, forms, string lines, and finished grade control, slope stakes and other controls which may be required for proper execution of the Work.

7. Construction shall not begin until Engineer has received and signed grade sheets and has received two (2) copies of the notes.

8. Work done without lines and grades or without written approval of the Engineer will not be estimated or paid for and may be ordered removed and replaced at no cost to the Commission.

F. For other types of construction:

1. Stakeout following requirements herein at the Engineer’s direction.

2. Wetlands and Wetland Buffers:

a. Cross-sections of work limits every 50 feet before and after construction and before final stabilization to certify restoration to their original grades and elevations.

1.9 PROJECT PROGRESS MEETINGS

A. Project progress meetings shall be held bi-weekly to allow the Engineer to review Project status.

1. Contractor's project manager, superintendent, and key subcontractor representatives, as determined by the Contractor and the Engineer, shall attend meetings.

1.10 INTERPRETATION OF QUANTITIES

A. Quantities appearing in Bid Schedule are approximate only and are prepared for canvassing of bids (unless lump sum).

Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 10 Capital Heights, Maryland Issued for Bid

1. Payment to Contractor will be made only for actual quantities of work performed or materials furnished following Contract.

2. Where actual quantity of pay item varies more than 25 percent above or below estimated quantity stated in Contract, an equitable adjustment will be considered upon request of either party.

3. Adjustment: Based upon any increase or decrease in unit costs due solely to variation above 125 percent or below 75 percent of estimated quantity.

a. This adjustment shall only be applied to the quantity above 125 percent or below 75 percent of estimated quantity.

b. If quantity variation causes an increase in time necessary for completion, the Engineer will, upon receipt of written request for extension of time, ascertain facts and make adjustment for extending completion date, as in his judgment the findings justify.

B. The 25 percent above or below estimated quantities does not apply to fixed unit price contingent items or lump sum items.

1.11 LUMP SUM CONTRACTS

A. Work required by the Contract Documents except for contingent items will be paid for by

Lump Sum item as provided in Bid Schedule.

1.12 CONTINGENT ITEMS

A. Fixed quantity and unit price contingent items listed in Bid Schedule do not necessarily occur on the Contract Drawings.

B. During the course of the work, Engineer may direct incorporation of any or all of these items.

C. Payment to the Contractor in this case will be for quantities approved by the Engineer and computed following the Contract Documents based on unit prices listed in Bid Schedule.

1.13 INCIDENTAL ITEMS

A. When no item is provided in Bid Schedule, no measurement and payment will be made, but the cost thereof considered incidental.

1.14 ARCHAEOLOGICAL ARTIFACTS AND HUMAN REMAINS

A. Articles of historical or scientific value, including coins, fossils, and articles of antiquity, which may be uncovered or otherwise brought to attention of the Contractor during course of the Contract shall remain property of the Owner of the property on which articles reside.

Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 11 Capital Heights, Maryland Issued for Bid

1. Report findings immediately to the Engineer who will determine method of removal, where necessary.

1.15 ASBESTOS-BEARING ROCK

A. Use of asbestos-bearing rock as an unbound surfacing material on roads, sidewalks, parking lots, road shoulders, trails, and other areas subject to traffic, vehicular or pedestrian, is prohibited.

B. Health and Safety of Workers, Commission Employees, and the Environment: Following applicable Federal, State, and local laws and regulations including, but not limited to 29 C.F.R. 1910.1001, 29 C.F.R. 1926.1101, 40 C.F.R. 61 subpart m, 40 C.F.R. 302, 49 C.F.R. 171, 49 C.F.R. 172, and COMAR 26.11.21 Et Seq.

C. Secure services to ensure compliance with applicable Federal, State and local laws and regulations.

1. Environmental Consultants and Contractors, Inc.

2. Apex Environmental, Inc.

3. Or equal.

D. Practice effective dust control throughout the project duration.

1. Use water suppression techniques to control dust as it is generated during construction.

2. Keep excavated rock wet during operations that may generate dust, including, but not limited to blasting, excavations, loading, and hauling of rock.

1.16 MOBILIZATION

A. Measurement: By Lump Sum.

B. Payment: At fixed lump sum unit price as listed in Bid Schedule made in monthly payments, less retention, based on the mutually accepted construction schedule (see Section 01320) and includes:

1. Cost of bonds and insurance.

2. Clearing and preparing work areas.

3. Providing sediment control devices.

4. Providing construction access roads.

5. Mobilization of construction equipment, assembly and delivery of plant, materials and supplies and set up of field office facilities necessary for the execution of work but not intended to be incorporated into the work.

Anacostia II Wastewater Pumping Station Surge Tanks Removal 01110 - 12

1.17 ELECTRONIC COMMUNICATIONS

A. The Commission intends to use e-Builder on the internet for most types of communications.

B. The Commission will set up e-Builder at a central server, which will serve as a secured closed communication environment for prime project participants.

C. Project participants such as the Commission, Contractor and Consultant Engineer will communicate with each other through directed and group e-mail, message boards, file transfers, processes, and forums. WWW.e-builder.net will be used for communicating:

1. Requests for Information.

2. Change Orders.

3. Digital Photos.

4. Meeting Minutes.

5. Contract Drawings, Specifications and Project Schedules.

6. Submittals.

7. Field Orders.

8. Request for change quotations.

9. Claims.

10. Noncompliance.

11. Electronic communications among project participants.

12. Project calendar.

13. Other information deemed advantageous for the Project.

D. Communication logs will be maintained for the above communications, as well as submittal logs required in Section 01330, Submittal Procedures.

E. Use Primavera, AutoCAD, MS Word, MS Excel, MS PowerPoint, and Adobe Acrobat to facilitate these communications.

F. Electronic Mail: Ability to send and receive (email) including file attachments via the

Internet at the home office and at the field office.

PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION (NOT USED)

**WSSC**

Site Conditions Anacostia II Wastewater Pumping Station Surge Tanks Removal 01150 - 1 Capital Heights, Maryland Issued for Bid

SECTION 01150

SITE CONDITIONS

1.1 DESCRIPTION

A. This section includes general requirements relating to site conditions and responsibility for existing utilities, structures, and facilities.

1.2 EXISTING UTILITIES

A. General:

1. Existing utility structures and appurtenances are shown following best available information.

2. The Commission will not be responsible for completeness or accuracy thereof nor for any deductions, interpretations, or conclusions drawn there from.

3. Notify the Engineer 48 hours in advance of work in the vicinity of existing utility structures and appurtenances and verify by test pit or other means actual locations of existing utility structures and appurtenances before construction in their vicinity.

4. Support and protect utility structures and appurtenances following Drawings and Owner's requirements and take other steps necessary to protect structures from disturbance or damage.

5. Support and protect utility structures and appurtenances known, but not shown on Drawings, which occupy same space as the facility to be constructed at no additional cost to the Commission.

6. Notify Utility Owner and Engineer immediately when previously unknown or different underground utility structures or appurtenances are encountered and take necessary precautions to support and protect utility.

7. Relocations or temporary protection arranged by or for convenience of the Contractor shall be at no additional cost to the Commission.

8. Removal or relocation of existing utility structures and appurtenances that physically occupy the same space as facility, structure, or pipeline to be constructed are at no cost to Commission.

9. Fulfill requests from public utility corporations, jurisdictional agencies, or other owners to adjust public utility structures and appurtenances within or adjacent to limits of construction.

a. Furnish copies of requests and replies thereto to Engineer, and coordinate activities with utility.

b. Additional cost or time extension incurred resulting from lack of coordination with utilities shall be at no additional cost to the Commission.

Site Conditions Anacostia II Wastewater Pumping Station Surge Tanks Removal 01150 - 2 Capital Heights, Maryland Issued for Bid

10. Any costs incurred as result of damage to incorrectly marked existing utility structure or appurtenances are to be resolved with the Owner of damaged utility and shall not be the responsibility of the Commission.

11. Repair damage to utility structures or appurtenances shown on the Drawings or otherwise known.

a. Restore damaged utility structures and appurtenances as near as practicable to their original condition to the Engineer's or utilities' approval, at no additional cost to the Commission.

12. A Geotechnical Investigation Report and a Limited Hazardous Material Survey are included in Appendix A and Appendix B, respectively, of this Specification set.

These reports are for information purposes only and are not part of the contract.

B. Relocations by Others: Coordinated with construction schedules of others performing relocations of existing utilities to avoid delay in work.

C. Access to Utilities: At all times, permit free and clear access to the various affected utility structures and appurtenances by personnel of the Utility Owners or Operators for the purpose of inspection, maintenance, providing for additional service requirements and the construction of new utilities. When personnel of the Utility Owners or Operators are working within the limits of work to be performed by the Contractor, the Contractor shall not be relieved of his responsibility for the maintenance and protection of such utility structures and appurtenances.

1.3 OTHER EXISTING IMPROVEMENTS, STRUCTURES, AND FACILITIES

A. All existing improvements, structures and facilities within and adjacent to the construction area may not be shown on the Drawings. It is the Contractor's responsibility to locate, protect and maintain, as required, and/or remove and restore existing improvements, structures and facilities encountered, unless otherwise approved by the Engineer.

B. Unless shown to be removed, protect trees and shrubbery, existing improvements, structures and facilities from damage. If damaged, replace or repair damage, as approved by the Engineer, at no cost to the Commission.

C. Protect property survey pipes, stones and monuments. Replacement, if required, shall be by a registered surveyor, at no cost to the Commission.

D. Remove fences, curbs, gutters, walkways, flagstone, trees and shrubbery where required, and replace in original position or as approved by the Engineer. Replace, in kind, those damaged, at no cost to the Commission.

1.4 SITE ACCESS

A. Access to the site will be provided by the Commission.

Site Conditions Anacostia II Wastewater Pumping Station Surge Tanks Removal 01150 - 3 Capital Heights, Maryland Issued for Bid

B. The Contractor shall maintain a means for the Commission to access the existing facility at all times and as herein specified.

PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION (NOT USED)

Site Conditions Anacostia II Wastewater Pumping Station Surge Tanks Removal 01150 - 4

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Construction Schedule – Critical Path Method (CPM) Anacostia II Wastewater Pumping Station Surge Tanks Removal 01320 - 1

SECTION 01320

CONSTRUCTION SCHEDULE - CRITICAL PATH METHOD (CPM)

1.1 SCOPE

A. Contractor shall prepare and maintain a preliminary schedule herein referred to as the

“Preliminary Construction Schedule” and a detailed progress schedule, herein referred to as the "Complete Detailed Construction Schedule" as described below. These schedules shall be the Contractor's working schedules and used to plan, organize, and execute the Work. Contractor shall record and report actual performance and progress on a monthly basis and show how the Contractor plans to complete all remaining Work as of the end of each progress report period.

B. The Preliminary Construction Schedule shall be maintained until the Complete

Detailed Construction Schedule is accepted by the Engineer. Each schedule submittal, including updates, shall include three (3) hard copies and be posted on e-Builder.

C. The Complete Detailed Construction Schedule shall be in the form of a network analysis system produced using Oracle’s Primavera P6 Professional (latest version, as required by WSSC), and shall show activities required for complete performance of items of Work. Each submittal, including updates, shall include three (3) hard copies of the schedule. In addition, the XER file shall be posted on e-Builder.

1.2 QUALIFICATIONS

Contractor shall submit for approval prior to submission of the Preliminary Construction Schedule, the resume of the scheduler they intend to use for developing and updating the schedule. If Contractor intends to engage a firm that specializes in the development and maintenance of project schedules, Contractor must submit the firm’s qualifications & experience statement for approval prior to submission of the Preliminary Construction Schedule. The Scheduler or firm shall have a minimum of five (5) years’ experience scheduling, updating, and monitoring CPM construction schedules.

PART 2 – PRODUCTS (NOT USED)

PART 3 - EXECUTION

3.1 SCHEDULE SUBMITTAL REQUIREMENTS

Construction Schedule – Critical Path Method (CPM) Anacostia II Wastewater Pumping Station Surge Tanks Removal 01320 - 2

A. Preliminary Construction Schedule: Within 15 days after the Contract start date set forth in the Notice to Proceed (NTP), submit to the Engineer for review:

1. A Preliminary Construction Schedule in time scale format indicating planned

Contractor operations during the first 120 days. Cost of activities and/or Project Deliverables expected to be completed or partially completed before submission and acceptance (by the Engineer) of the Complete Detailed Construction Schedule shall be included.

2. A preliminary Work Breakdown Structure (WBS). A hierarchy that represents the Work required to finish the project. The lowest level of the WBS shall have activities and deliverables.

B. Complete Detailed Construction Schedule:

1. General:

a. Within 60 days after the Contract start date set forth in the Notice to Proceed, submit the Complete Detailed Construction Schedule (CDCS) for the Engineer’s review and mutual acceptance. The CDCS shall consist of a complete detailed Critical Path Method (CPM) schedule showing usage of the entire Contract Time provided in the Contract. The mutually accepted schedule, unless subsequently changed with the concurrence of or at the direction of the Engineer, shall be the Contractor's working schedule and shall be used to plan, organize and execute the Work; record and report the actual performance and progress; and forecast remaining Work for the duration of the Contract. Additionally, the mutually accepted schedule shall be the basis for determining progress payments to the Contractor.

b. The Schedule shall consist of diagrams, accompanying mathematical analyses including tabular reports and narratives as specified herein.

c. Contractor shall schedule the Work such that any specified intermediate milestone dates and completion dates are met as specified in the Contract Documents.

2. Construction Sequencing and Constraints:

a. The Contractor’s schedule must clearly identify proposed construction durations for each activity. Activities shall be developed in sufficient detail to identify impacts to existing facility operations. The schedule shall contain a detailed listing of all expected shutdowns, with the duration of the shutdown specifically shown. A pump shutdown shall be defined as pumping unit(s) being taken out of service and not pumping water for any duration. A shutdown may include the entire pumping station (all pumping units), or a portion of the pumping station. A shutdown shall also include taking any

Construction Schedule – Critical Path Method (CPM) Anacostia II Wastewater Pumping Station Surge Tanks Removal 01320 - 3 Capital Heights, Maryland Issued for Bid facilities (including appurtenant facilities such as process…