Amend 0010Revised G-102.pdf

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Attached to
Environmental Remediation Services, Stratford Army Engine Plant, Stratford, CT
Solicitation number
W912WJ21B0017
Issued by

About this file

This document package includes a staging and access plan sheet and a solicitation for environmental remediation services. The staging and access plan sheet provides details for the contractor work areas, equipment and material stockpile locations, and temporary access roads around the Stratford Army Engine Plant site where dredging and disposal work will take place.

The solicitation is a small business set-aside issued by the U.S. Army Corps of Engineers, New England District, for dredging and disposal of sediments from an outfall drainage channel at the Stratford Army Engine Plant in Stratford, Connecticut. The work includes mechanical dredging and removal of approximately 13,000 cubic yards of sediments affected by metals and PCBs from the drainage channel. The dredged materials must then be dewatered, solidified with cementitious materials, and placed on-site for future beneficial reuse, with some portions requiring off-site disposal at approved landfills. The channel will also require backfilling with clean sand. The period of performance for all work is 375 calendar days.

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...\Outfall 008 Remediation\30000 - Planning & Engineering & Design\30DA0 - Plans & Specs\CAD_BIM\_Sheets\STAGING, HAUL, DISPOSAL PL

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A1

GENERAL PLAN VIEW

SCALE: 1" = 200'

N

400'0 200'

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G-102

N SHEET NOTES:

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SYSTEM

TREATMENT

WATER

EXISTING

STOCKPILE

CONCRETE

CRUSHED

EXISTING

WITH SITE MAINTENANCE COMPANY

EXISTING GAS LINE. COORDINATE

PROTECTIVE MEASURES OVER

TAKE EXTRA CAUTION AND

AND PUMPING, OR TRUCKING ACROSS SITE).

TRENCHING CONDUIT UNDER SNIFFENS LANE

THE WATER TREATMENT SYSTEM (E.G.

DITCH WORK AND SOUTHERN STOCKPILE TO

TRANSPORTING WATER FROM THE OUTFALL

CONTRACTOR SHALL PROPOSE A METHOD OF

AND DEFECTS PRIOR TO OPERATIONS. THE

PIPING SHALL BE INSPECTED DAILY FOR LEAKS

TREATMENT SYSTEM AND CONVEYANCE

IN SPECIFICATION SECTION 02 24 50. WATER

OFFSHORE OF THE CAUSEWAY AS DESCRIBED

DISCHARGE ACTIVITIES SHALL OCCUR

8. DEWATERING AND OTHER APPROVED WATER

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TESTING FOR ON-SITE/OFF-SITE DISPOSAL.

IMPACTED SEDIMENTS ALSO CONDUCT SAMPLING &

MIXING/PROCESSING OF ALL MATERIALS. FOR PCB

INTENDED FOR TEMPORARY STORAGE, DEWATEREING,

7. SEDIMENT MANAGEMENT BINS (SMB) SHOWN ARE

SHALL BE NO STEEPER THAN 1V:2H.

A MINIMUM OF 12" OF TOPSOIL. STOCKPILE SIDE SLOPES

6. THE NORTH LOT PCB STOCKPILE SHALL BE CAPPED WITH

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BY COR. REFER TO SHEET C-102 FOR MINIMUM STORMWATER CONTROLS.

MANAGEMENT AREA PLANS TO BE SUBMITTED BY CONTRACTOR AND APPROVED

TEMPORARY STORMWATER MANAGEMENT AREAS. STORMWATER

5. BENEFICIAL RE-USE STOCKPILE TO BE GRADED TO SHED WATER TOWARDS

NORTHERN STOCKPILE.

CAPACITY AVAILABLE. ALL CATEGORIZED MATERIAL SHALL GO TO THE

55 00 AND 02 61 13. THE STOCKPILE SHOWN INDICATE THE MAXIMUM STORAGE

CEMENT TO MEET THE RE-USE REQUIREMENTS IN SPECIFICATION SECTIONS 02

ARE 1V:2H BASED ON STABILITY ANALYSIS AFTER THE ADDITION OF PORTLAND

OF THE PILE LABELED AT THE EXISTING GRADE (MLLW). SIDE SLOPES SHOWN

GREATER THAN AN 18' MAXIMUM HEIGHT. STOCKPILE SHOWN WITH THE BOTTOM

4. NORTH PARKING LOT BENEFICIAL RE-USE MATERIAL STOCKPILE SHALL HAVE NO

OTHER MATERIAL WILL BE DISPOSED OF OFF SITE.

SECTION 02 61 13 SUBPART "CONTAMINATED MATERIAL SEGREGATION". ALL

THE STANDARDS IDENTIFIED AS CATEGORIZED MATERIAL IN SPECIFICATION

3. NORTH BENEFICIAL RE-USE STOCKPILE SHOWN IS FOR MATERIAL THAT MEETS

AND COORDINATION" FOR FAA AND AIRPORT COORDINATION REQUIREMENTS.

2. REFER TO SPECIFICATIONS SECTION 01 30 00, SUBPART TITLED "FAA PERMIT

FOR SITE MAINTENANCE DURING CONSTRUCTION.

HAVE THE ACCESS TO EXISTING BUILDINGS AND SITE FEATURES THEY NEED

COORDINATE WITH THE SITE MAINTENANCE CONTRACTOR TO ENSURE THEY

LAYOUT WITHIN THEIR WORK PLAN SUBMITTAL, GIVEN THE SPACE AVAILABLE.

FOR CONSTRUCTION. THE CONTRACTOR MAY PROPOSE AN ALTERNATIVE

1. THIS SHEET REPRESENTS GENERAL ACCESS, STAGING AND UPLAND LOGISTICS

13.

CONTRACTOR FOR SYSTEM CAPABILITIES AND POTENTIAL FOR USE.

OF THE TREATMENT PROCESS. COORDINATE WITH THE SITE MAINTENANCE

REQUIREMENTS OF THIS CONTRACT BUT MAY BE USED AS A COMPONENT

IN USE BY ANYONE. THE SYSTEM IS NOT FULLY SUFFICIENT TO MEET THE

12. AN EXISTING WATER TREATMENT SYSTEM IS ON SITE AND NOT CURRENTLY

CAUSEWAY. REFER TO SHEETS CD102 AND CD104.

ROUTING TO THE CONSTRUCTION WATER TREATMENT PLANT NEAR THE

WORK AREA SHALL BE TRENCHED UNDER THE ROAD AT SNIFFENS LANE WHEN

DEWATERING/TREATMENT PIPING FROM THE SOUTHERN LOT AND OF-008

/1

/2

L T

H

IB

O D

E A

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DEWATERING UNIT, SMB, OR STOCKPILE.

THAT LEAVES SEDIMENT IN A LOCATION ON SITE OTHER THAN A

SPILLAGE FROM THE SMB STORAGE, AND ANY OTHER ACTIVITY

SEDIMENTS LEAKING FROM TRANSPORTATION EQUIPMENT,

OF ALL MISPLACED MATERIAL. MISPLACED MATERIAL INCLUDES

ON SNIFFENS LANE. CONTRACTOR IS RESPONSIBLE FOR CLEAN-UP

REMEDIATION SEDIMENT FROM BEING MISPLACED ON THE SITE AND

ENTRANCE/EXIT AND TRUCKING CONTAINMENT TO PREVENT

11. CONTRACTOR SHALL HAVE SUFFICIENT CONSTRUCTION

THE GOVERNMENT.

THE DURATION OF CONSTRUCTION AT NO ADDITIONAL COST TO

KEEP ALL ACCESS ROADS IN GOOD WORKING ORDER THROUGHOUT

CRUSHED STONE. IT IS THE CONTRACTOR'S RESPONSIBILITY TO

ROADS SHOWN ARE ASSUMED TO BE 12"-16" OF COMPACTED

COMPLETION OF CONSTRUCTION. NON-MAT TEMPORARY ACCESS

AND RESTORED TO PRE-CONSTRUCTION CONDITIONS AT THE

PURPOSES. ALL TEMPORARY ACCESS ROADS SHALL BE REMOVED

CONTRACTOR TO TEMPORARILY IMPROVE FOR CONSTRUCTION

TEMPORARY ACCESS ROAD LOCATIONS ARE INTENDED FOR

CONCRETE, GRAVEL, AND VEGETATED AREAS NEAR OUTFALL-008.

10. TEMPORY ACCESS ROADS WILL BE ON EXISTING PAVEMENT,

MANAGEMENT BINS AND ON-SITE RE-USE STOCKPILE.

EROSION AND CONTROL REQUIREMENTS FOR SEDIMENT

9. REFER TO SHEET C-103 AND SPECIFICATION SECTION 01 57 23 SOIL

1 1

THE COURSE OF CONSTRUCTION.

AREA AND AND DRIVING HEAVY EQUIPMENT ON THE CAUSEWAY OVER

THE CONTRACTOR'S WORK PLAN INCLUDE THE USE OF THE STORAGE

DEWATERING EQUIPMENT STORAGE AREA PAD ARE ONLY REQUIRED IF

14. THE 24-FOOT WIDE TEMPORARY ACCESS ROAD AND 8,000 SF

R E

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