) 7 - i

W92242D

DRAFT WORK PLAN AMENDMENT NO 6

REMEDIAL INVESTIGATIONFEASIBIUTY STUDY

NYANZA OPERABLE UNIT Ill- SUDBURY RIVER STUDY MIDDLESEX COUNTY MASSACHUSmS

HAWBURTON NUS Environmental Corporation

EPA Work Assi9nment No 02-1L15 Contract No 61-W8-G117 HNU5 Project No 0214

August 1992

DRAFT WORK PLAN AMENDMENT NO

REMEDIAL INVESTIGATIONFEASIBILITY STUDY

NYANZA OPERABLE UNIT III - SUDBURY RIVER MIDDLESEX COUNTY MASSACBUSETlS

HALLIBURTON NUS Environmental Corporation

EPA Work Aaai9ruaant No 02-lLlS EPA Contract No 68-WI-0117

BNUS Project No 02U

August 1992

s ~iller Mart1n Project Manaqer Program Manager

W92242D

STUDY

Georg itnir PE

r --

DRAFT

TABLE OP CONTENTS DRAFT IIORit PLAN AIIEIIlliiEIIT NO 6

NYAHZA OPERABLE UNIT III - SUOBORY RIVER STUDY MIDDLESEX COONlY MASSACBDSEllS

~

1 0 IIIIROOOCTION

2 0 OBJECTIVES

3 0 SOOPE OP - 3 1 Taak 0100 - Pro j ect Planning 3 2 Taak 0200 - C01111unity Relatione 3 3 Taak 0800 - Ruaedial I nvea tigation Report 34 Taak Plan for Feaaibility Study Reviaion 35 Taak 1200 - Poat RI FS Support

40 ~--41 Project Organization 4 2 Quality Aaaurance (QA) and Data Manaqement 4 3 Project Schedule 44 COt Eatiaate

4-l PROJECT SCHEDULE

W922420

bull

) DRAFT

l 0 INTRODUCTION

Work Plan Amendment No 6 was prepared for Nyanza Operable Unit III Site Remedial InvestigationFeasibility Study RlFS) at the request of the us Environmental Protection Agency Region I under Contract No 68-WS-0117 work Assignment No 02-lLlS Work Plan Amendment No 6 is required to conduct additional work associated with the RI FS and the funding and LOE required to perform these tasks

20 OBJECTIVES

The overall objectives of the Nyanza Operable III RIFS are to

o Aasesa contaminants in the Sudbury River baain in the vicinity and downriver of the Nyanza Chemical Waste Dump Site in order to determine the nature and extent of contaaination in the river

o Evaluate public health and ecoloqical riaka aeeociated with obaerved contamination

0 Provide data to develop general reaponae objectivea and 0cleanup atandarda focuaing on sediment cleanup

0 Provide data to develop and evaluate reaedial alternativebull to mitigate the defined riaka The specific objective of thia aaendment ia to evaluate additional reaedial alternativebull focuaing on sediment cleanup in the Eaatern Wetland and draina9eways from the Wetland to the Sudbury River Thia amendment also provides additional LOE for taaks requiring additional work due to the inveatigation and reporting of extensive contamination in the Study Area

30 SCOPE OP IIORllt

During the conduct of the Nyanza Operable Unit III work completion and production of extensive RI FS reports resulted in budget variances and the need for additional dollars and LOE Due to the nature of the contamination found and the extensive Study Area involved ( 35 miles of river 1 additional remedial alternatives must also be evaluated and incorporated into a revised Feasibility Study Repor t The alternatives will focus on the Eastern Wetlands and drainageway between the Site and the Sudbury River

-l shyW922420

I I

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~~ ~Mo ~t Mampl oro 0

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) DRAFT

) 31 Task 0100 - Project Planning

This task includes preparing this document and estimated additional LOE and oocs required f or routine project planning and monthly reporting functions through the scheduled end of the project March 31 1993

32 Task 0200 - C~unity Relations

Schedule changes will require expenditure of LOE in fiscal year 1993 rather than 1992 as originally scheduled Remaining LOE in Task 0200 will be transferred to 1993 under this amendment

33 faak 0100 - R~ial Investigation Report

Preparation of the Draft Final Revision and Final Report Documents resulted in LOE and dollar variances which are i ncluded in this aendllent

34 rut Plan for Puaibllity Study Revision

Baaed on a9ency review of the Draft Final Feasibility Study additional r~ial action alternatives will be evaluated and incorporated into the Draft Final docwaent The tS will con1ilt of the following taaks

Talk 0900 - Reaedial Alternativebull Screening o Task 1000 - Redial Alternatives Evaluation o Task 1100 - FS Report

The FS revision will i dentify screen and evaluate remedi al action alternatives which address mercury contaminated sediments in the Eastern Wetland Trolley Brook Outfall Creek and the Lover Raceway Contuination in these areas was described in the Final RI Report Objectives of the overall rs and a detailed Task description are presented in the Final Work Plan dated August 1989

Additional LOE h included in this amendment to complete Tasks 0900 1000 and 1100 Costa include the preparation of a Draft and a Pinal FS document

35 laok 1200 - Poot RIPS Support

At the requut of EPA a portion of the LOE originally budgeted for this task will be transferred and used to offset LOE planned in Task 1100 - FS Report Additional time will be transferred to fiscal year 1993

11922420 -2shy

I I

I

) CRAFT

40 PROJECT JWIAGEMENT

The overall project management and control of the Nyanza Operable Unit III RIFS is discussed below

41 Pro1ect Organization

Mr George Gardner the Program Manager ia responsible for the overall management and implementation of the RNUS ARCS I contract as performed in us EPA Region I Mr Walter Martin will serve as the Project Manager for Work Assignment No 02-lLlS and has the prim~ry responsibility for the implementation and execution of the work Aaaignment including technical quality oversightreview control of coats and schedule and implementing appropriate quality aurance procedures during all phases The technical support staff will be drawn fro the HNUS Wilmington Maaaachusetts Program Managnt Office If specialized support is required personnel frOID other HNUS offices may be utilized

4 2 Quality Aaaurance (Qa) and Data Manaq-nt

All work will be performed in accordance with the RNUS ARCS I QA PrOCJrU which haa been submitted under separate cover Siteshyspecific QA requirnta are in accordance with the QA QC Plan developed for the Nyanza RIFS assignment and provide 9eneral guidance on project or9anization and responsibility QA objectives cfor uaaurement data and control storage and documentation of data and inforution

43 Pro1ect Schedule

The overall Project Schedule (Figure 4-1) shows the tasks and activitiea for the reaaibility Study Revision efforts The schedule begins upon concurrence with and approval of this Draft Work Plan AaenDent by EPA The schedule ia baaed on prompt EPA approval of this Work Plan Amendment Upon approval the schedule uy be revhed so that actual dates replace the proposed dates

4 4 Coot Batate

The overall coat estimate for the performance of the work described in thh Work Plan Amendment is presented in a separate document the Detailed Coat Estimate The coat represents the estimated costa baaed on the execution of the scope of work described in section 30 The actual scope of work and coat uy change durin9 the execution of this assignment

-JshyW922420

DRAFT WORK PLAN AMENDMENT NO

REMEDIAL INVESTIGATIONFEASIBILITY STUDY

NYANZA OPERABLE UNIT III - SUDBURY RIVER MIDDLESEX COUNTY MASSACBUSETlS

HALLIBURTON NUS Environmental Corporation

EPA Work Aaai9ruaant No 02-lLlS EPA Contract No 68-WI-0117

BNUS Project No 02U

August 1992

s ~iller Mart1n Project Manaqer Program Manager

W92242D

STUDY

Georg itnir PE

r --

DRAFT

TABLE OP CONTENTS DRAFT IIORit PLAN AIIEIIlliiEIIT NO 6

NYAHZA OPERABLE UNIT III - SUOBORY RIVER STUDY MIDDLESEX COONlY MASSACBDSEllS

~

1 0 IIIIROOOCTION

2 0 OBJECTIVES

3 0 SOOPE OP - 3 1 Taak 0100 - Pro j ect Planning 3 2 Taak 0200 - C01111unity Relatione 3 3 Taak 0800 - Ruaedial I nvea tigation Report 34 Taak Plan for Feaaibility Study Reviaion 35 Taak 1200 - Poat RI FS Support

40 ~--41 Project Organization 4 2 Quality Aaaurance (QA) and Data Manaqement 4 3 Project Schedule 44 COt Eatiaate

4-l PROJECT SCHEDULE

W922420

bull

) DRAFT

l 0 INTRODUCTION

Work Plan Amendment No 6 was prepared for Nyanza Operable Unit III Site Remedial InvestigationFeasibility Study RlFS) at the request of the us Environmental Protection Agency Region I under Contract No 68-WS-0117 work Assignment No 02-lLlS Work Plan Amendment No 6 is required to conduct additional work associated with the RI FS and the funding and LOE required to perform these tasks

20 OBJECTIVES

The overall objectives of the Nyanza Operable III RIFS are to

o Aasesa contaminants in the Sudbury River baain in the vicinity and downriver of the Nyanza Chemical Waste Dump Site in order to determine the nature and extent of contaaination in the river

o Evaluate public health and ecoloqical riaka aeeociated with obaerved contamination

0 Provide data to develop general reaponae objectivea and 0cleanup atandarda focuaing on sediment cleanup

0 Provide data to develop and evaluate reaedial alternativebull to mitigate the defined riaka The specific objective of thia aaendment ia to evaluate additional reaedial alternativebull focuaing on sediment cleanup in the Eaatern Wetland and draina9eways from the Wetland to the Sudbury River Thia amendment also provides additional LOE for taaks requiring additional work due to the inveatigation and reporting of extensive contamination in the Study Area

30 SCOPE OP IIORllt

During the conduct of the Nyanza Operable Unit III work completion and production of extensive RI FS reports resulted in budget variances and the need for additional dollars and LOE Due to the nature of the contamination found and the extensive Study Area involved ( 35 miles of river 1 additional remedial alternatives must also be evaluated and incorporated into a revised Feasibility Study Repor t The alternatives will focus on the Eastern Wetlands and drainageway between the Site and the Sudbury River

-l shyW922420

I I

I (

I

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mllt rUtbull

2

~~ ~Mo ~t Mampl oro 0

s

) DRAFT

) 31 Task 0100 - Project Planning

This task includes preparing this document and estimated additional LOE and oocs required f or routine project planning and monthly reporting functions through the scheduled end of the project March 31 1993

32 Task 0200 - C~unity Relations

Schedule changes will require expenditure of LOE in fiscal year 1993 rather than 1992 as originally scheduled Remaining LOE in Task 0200 will be transferred to 1993 under this amendment

33 faak 0100 - R~ial Investigation Report

Preparation of the Draft Final Revision and Final Report Documents resulted in LOE and dollar variances which are i ncluded in this aendllent

34 rut Plan for Puaibllity Study Revision

Baaed on a9ency review of the Draft Final Feasibility Study additional r~ial action alternatives will be evaluated and incorporated into the Draft Final docwaent The tS will con1ilt of the following taaks

Talk 0900 - Reaedial Alternativebull Screening o Task 1000 - Redial Alternatives Evaluation o Task 1100 - FS Report

The FS revision will i dentify screen and evaluate remedi al action alternatives which address mercury contaminated sediments in the Eastern Wetland Trolley Brook Outfall Creek and the Lover Raceway Contuination in these areas was described in the Final RI Report Objectives of the overall rs and a detailed Task description are presented in the Final Work Plan dated August 1989

Additional LOE h included in this amendment to complete Tasks 0900 1000 and 1100 Costa include the preparation of a Draft and a Pinal FS document

35 laok 1200 - Poot RIPS Support

At the requut of EPA a portion of the LOE originally budgeted for this task will be transferred and used to offset LOE planned in Task 1100 - FS Report Additional time will be transferred to fiscal year 1993

11922420 -2shy

I I

I

) CRAFT

40 PROJECT JWIAGEMENT

The overall project management and control of the Nyanza Operable Unit III RIFS is discussed below

41 Pro1ect Organization

Mr George Gardner the Program Manager ia responsible for the overall management and implementation of the RNUS ARCS I contract as performed in us EPA Region I Mr Walter Martin will serve as the Project Manager for Work Assignment No 02-lLlS and has the prim~ry responsibility for the implementation and execution of the work Aaaignment including technical quality oversightreview control of coats and schedule and implementing appropriate quality aurance procedures during all phases The technical support staff will be drawn fro the HNUS Wilmington Maaaachusetts Program Managnt Office If specialized support is required personnel frOID other HNUS offices may be utilized

4 2 Quality Aaaurance (Qa) and Data Manaq-nt

All work will be performed in accordance with the RNUS ARCS I QA PrOCJrU which haa been submitted under separate cover Siteshyspecific QA requirnta are in accordance with the QA QC Plan developed for the Nyanza RIFS assignment and provide 9eneral guidance on project or9anization and responsibility QA objectives cfor uaaurement data and control storage and documentation of data and inforution

43 Pro1ect Schedule

The overall Project Schedule (Figure 4-1) shows the tasks and activitiea for the reaaibility Study Revision efforts The schedule begins upon concurrence with and approval of this Draft Work Plan AaenDent by EPA The schedule ia baaed on prompt EPA approval of this Work Plan Amendment Upon approval the schedule uy be revhed so that actual dates replace the proposed dates

4 4 Coot Batate

The overall coat estimate for the performance of the work described in thh Work Plan Amendment is presented in a separate document the Detailed Coat Estimate The coat represents the estimated costa baaed on the execution of the scope of work described in section 30 The actual scope of work and coat uy change durin9 the execution of this assignment

-JshyW922420

DRAFT

TABLE OP CONTENTS DRAFT IIORit PLAN AIIEIIlliiEIIT NO 6

NYAHZA OPERABLE UNIT III - SUOBORY RIVER STUDY MIDDLESEX COONlY MASSACBDSEllS

~

1 0 IIIIROOOCTION

2 0 OBJECTIVES

3 0 SOOPE OP - 3 1 Taak 0100 - Pro j ect Planning 3 2 Taak 0200 - C01111unity Relatione 3 3 Taak 0800 - Ruaedial I nvea tigation Report 34 Taak Plan for Feaaibility Study Reviaion 35 Taak 1200 - Poat RI FS Support

40 ~--41 Project Organization 4 2 Quality Aaaurance (QA) and Data Manaqement 4 3 Project Schedule 44 COt Eatiaate

4-l PROJECT SCHEDULE

W922420

bull

) DRAFT

l 0 INTRODUCTION

Work Plan Amendment No 6 was prepared for Nyanza Operable Unit III Site Remedial InvestigationFeasibility Study RlFS) at the request of the us Environmental Protection Agency Region I under Contract No 68-WS-0117 work Assignment No 02-lLlS Work Plan Amendment No 6 is required to conduct additional work associated with the RI FS and the funding and LOE required to perform these tasks

20 OBJECTIVES

The overall objectives of the Nyanza Operable III RIFS are to

o Aasesa contaminants in the Sudbury River baain in the vicinity and downriver of the Nyanza Chemical Waste Dump Site in order to determine the nature and extent of contaaination in the river

o Evaluate public health and ecoloqical riaka aeeociated with obaerved contamination

0 Provide data to develop general reaponae objectivea and 0cleanup atandarda focuaing on sediment cleanup

0 Provide data to develop and evaluate reaedial alternativebull to mitigate the defined riaka The specific objective of thia aaendment ia to evaluate additional reaedial alternativebull focuaing on sediment cleanup in the Eaatern Wetland and draina9eways from the Wetland to the Sudbury River Thia amendment also provides additional LOE for taaks requiring additional work due to the inveatigation and reporting of extensive contamination in the Study Area

30 SCOPE OP IIORllt

During the conduct of the Nyanza Operable Unit III work completion and production of extensive RI FS reports resulted in budget variances and the need for additional dollars and LOE Due to the nature of the contamination found and the extensive Study Area involved ( 35 miles of river 1 additional remedial alternatives must also be evaluated and incorporated into a revised Feasibility Study Repor t The alternatives will focus on the Eastern Wetlands and drainageway between the Site and the Sudbury River

-l shyW922420

I I

I (

I

bull

mllt rUtbull

2

~~ ~Mo ~t Mampl oro 0

s

) DRAFT

) 31 Task 0100 - Project Planning

This task includes preparing this document and estimated additional LOE and oocs required f or routine project planning and monthly reporting functions through the scheduled end of the project March 31 1993

32 Task 0200 - C~unity Relations

Schedule changes will require expenditure of LOE in fiscal year 1993 rather than 1992 as originally scheduled Remaining LOE in Task 0200 will be transferred to 1993 under this amendment

33 faak 0100 - R~ial Investigation Report

Preparation of the Draft Final Revision and Final Report Documents resulted in LOE and dollar variances which are i ncluded in this aendllent

34 rut Plan for Puaibllity Study Revision

Baaed on a9ency review of the Draft Final Feasibility Study additional r~ial action alternatives will be evaluated and incorporated into the Draft Final docwaent The tS will con1ilt of the following taaks

Talk 0900 - Reaedial Alternativebull Screening o Task 1000 - Redial Alternatives Evaluation o Task 1100 - FS Report

The FS revision will i dentify screen and evaluate remedi al action alternatives which address mercury contaminated sediments in the Eastern Wetland Trolley Brook Outfall Creek and the Lover Raceway Contuination in these areas was described in the Final RI Report Objectives of the overall rs and a detailed Task description are presented in the Final Work Plan dated August 1989

Additional LOE h included in this amendment to complete Tasks 0900 1000 and 1100 Costa include the preparation of a Draft and a Pinal FS document

35 laok 1200 - Poot RIPS Support

At the requut of EPA a portion of the LOE originally budgeted for this task will be transferred and used to offset LOE planned in Task 1100 - FS Report Additional time will be transferred to fiscal year 1993

11922420 -2shy

I I

I

) CRAFT

40 PROJECT JWIAGEMENT

The overall project management and control of the Nyanza Operable Unit III RIFS is discussed below

41 Pro1ect Organization

Mr George Gardner the Program Manager ia responsible for the overall management and implementation of the RNUS ARCS I contract as performed in us EPA Region I Mr Walter Martin will serve as the Project Manager for Work Assignment No 02-lLlS and has the prim~ry responsibility for the implementation and execution of the work Aaaignment including technical quality oversightreview control of coats and schedule and implementing appropriate quality aurance procedures during all phases The technical support staff will be drawn fro the HNUS Wilmington Maaaachusetts Program Managnt Office If specialized support is required personnel frOID other HNUS offices may be utilized

4 2 Quality Aaaurance (Qa) and Data Manaq-nt

All work will be performed in accordance with the RNUS ARCS I QA PrOCJrU which haa been submitted under separate cover Siteshyspecific QA requirnta are in accordance with the QA QC Plan developed for the Nyanza RIFS assignment and provide 9eneral guidance on project or9anization and responsibility QA objectives cfor uaaurement data and control storage and documentation of data and inforution

43 Pro1ect Schedule

The overall Project Schedule (Figure 4-1) shows the tasks and activitiea for the reaaibility Study Revision efforts The schedule begins upon concurrence with and approval of this Draft Work Plan AaenDent by EPA The schedule ia baaed on prompt EPA approval of this Work Plan Amendment Upon approval the schedule uy be revhed so that actual dates replace the proposed dates

4 4 Coot Batate

The overall coat estimate for the performance of the work described in thh Work Plan Amendment is presented in a separate document the Detailed Coat Estimate The coat represents the estimated costa baaed on the execution of the scope of work described in section 30 The actual scope of work and coat uy change durin9 the execution of this assignment

-JshyW922420

) DRAFT

l 0 INTRODUCTION

Work Plan Amendment No 6 was prepared for Nyanza Operable Unit III Site Remedial InvestigationFeasibility Study RlFS) at the request of the us Environmental Protection Agency Region I under Contract No 68-WS-0117 work Assignment No 02-lLlS Work Plan Amendment No 6 is required to conduct additional work associated with the RI FS and the funding and LOE required to perform these tasks

20 OBJECTIVES

The overall objectives of the Nyanza Operable III RIFS are to

o Aasesa contaminants in the Sudbury River baain in the vicinity and downriver of the Nyanza Chemical Waste Dump Site in order to determine the nature and extent of contaaination in the river

o Evaluate public health and ecoloqical riaka aeeociated with obaerved contamination

0 Provide data to develop general reaponae objectivea and 0cleanup atandarda focuaing on sediment cleanup

0 Provide data to develop and evaluate reaedial alternativebull to mitigate the defined riaka The specific objective of thia aaendment ia to evaluate additional reaedial alternativebull focuaing on sediment cleanup in the Eaatern Wetland and draina9eways from the Wetland to the Sudbury River Thia amendment also provides additional LOE for taaks requiring additional work due to the inveatigation and reporting of extensive contamination in the Study Area

30 SCOPE OP IIORllt

During the conduct of the Nyanza Operable Unit III work completion and production of extensive RI FS reports resulted in budget variances and the need for additional dollars and LOE Due to the nature of the contamination found and the extensive Study Area involved ( 35 miles of river 1 additional remedial alternatives must also be evaluated and incorporated into a revised Feasibility Study Repor t The alternatives will focus on the Eastern Wetlands and drainageway between the Site and the Sudbury River

-l shyW922420

I I

I (

I

bull

mllt rUtbull

2

~~ ~Mo ~t Mampl oro 0

s

) DRAFT

) 31 Task 0100 - Project Planning

This task includes preparing this document and estimated additional LOE and oocs required f or routine project planning and monthly reporting functions through the scheduled end of the project March 31 1993

32 Task 0200 - C~unity Relations

Schedule changes will require expenditure of LOE in fiscal year 1993 rather than 1992 as originally scheduled Remaining LOE in Task 0200 will be transferred to 1993 under this amendment

33 faak 0100 - R~ial Investigation Report

Preparation of the Draft Final Revision and Final Report Documents resulted in LOE and dollar variances which are i ncluded in this aendllent

34 rut Plan for Puaibllity Study Revision

Baaed on a9ency review of the Draft Final Feasibility Study additional r~ial action alternatives will be evaluated and incorporated into the Draft Final docwaent The tS will con1ilt of the following taaks

Talk 0900 - Reaedial Alternativebull Screening o Task 1000 - Redial Alternatives Evaluation o Task 1100 - FS Report

The FS revision will i dentify screen and evaluate remedi al action alternatives which address mercury contaminated sediments in the Eastern Wetland Trolley Brook Outfall Creek and the Lover Raceway Contuination in these areas was described in the Final RI Report Objectives of the overall rs and a detailed Task description are presented in the Final Work Plan dated August 1989

Additional LOE h included in this amendment to complete Tasks 0900 1000 and 1100 Costa include the preparation of a Draft and a Pinal FS document

35 laok 1200 - Poot RIPS Support

At the requut of EPA a portion of the LOE originally budgeted for this task will be transferred and used to offset LOE planned in Task 1100 - FS Report Additional time will be transferred to fiscal year 1993

11922420 -2shy

I I

I

) CRAFT

40 PROJECT JWIAGEMENT

The overall project management and control of the Nyanza Operable Unit III RIFS is discussed below

41 Pro1ect Organization

Mr George Gardner the Program Manager ia responsible for the overall management and implementation of the RNUS ARCS I contract as performed in us EPA Region I Mr Walter Martin will serve as the Project Manager for Work Assignment No 02-lLlS and has the prim~ry responsibility for the implementation and execution of the work Aaaignment including technical quality oversightreview control of coats and schedule and implementing appropriate quality aurance procedures during all phases The technical support staff will be drawn fro the HNUS Wilmington Maaaachusetts Program Managnt Office If specialized support is required personnel frOID other HNUS offices may be utilized

4 2 Quality Aaaurance (Qa) and Data Manaq-nt

All work will be performed in accordance with the RNUS ARCS I QA PrOCJrU which haa been submitted under separate cover Siteshyspecific QA requirnta are in accordance with the QA QC Plan developed for the Nyanza RIFS assignment and provide 9eneral guidance on project or9anization and responsibility QA objectives cfor uaaurement data and control storage and documentation of data and inforution

43 Pro1ect Schedule

The overall Project Schedule (Figure 4-1) shows the tasks and activitiea for the reaaibility Study Revision efforts The schedule begins upon concurrence with and approval of this Draft Work Plan AaenDent by EPA The schedule ia baaed on prompt EPA approval of this Work Plan Amendment Upon approval the schedule uy be revhed so that actual dates replace the proposed dates

4 4 Coot Batate

The overall coat estimate for the performance of the work described in thh Work Plan Amendment is presented in a separate document the Detailed Coat Estimate The coat represents the estimated costa baaed on the execution of the scope of work described in section 30 The actual scope of work and coat uy change durin9 the execution of this assignment

-JshyW922420

) DRAFT

) 31 Task 0100 - Project Planning

This task includes preparing this document and estimated additional LOE and oocs required f or routine project planning and monthly reporting functions through the scheduled end of the project March 31 1993

32 Task 0200 - C~unity Relations

Schedule changes will require expenditure of LOE in fiscal year 1993 rather than 1992 as originally scheduled Remaining LOE in Task 0200 will be transferred to 1993 under this amendment

33 faak 0100 - R~ial Investigation Report

Preparation of the Draft Final Revision and Final Report Documents resulted in LOE and dollar variances which are i ncluded in this aendllent

34 rut Plan for Puaibllity Study Revision

Baaed on a9ency review of the Draft Final Feasibility Study additional r~ial action alternatives will be evaluated and incorporated into the Draft Final docwaent The tS will con1ilt of the following taaks

Talk 0900 - Reaedial Alternativebull Screening o Task 1000 - Redial Alternatives Evaluation o Task 1100 - FS Report

The FS revision will i dentify screen and evaluate remedi al action alternatives which address mercury contaminated sediments in the Eastern Wetland Trolley Brook Outfall Creek and the Lover Raceway Contuination in these areas was described in the Final RI Report Objectives of the overall rs and a detailed Task description are presented in the Final Work Plan dated August 1989

Additional LOE h included in this amendment to complete Tasks 0900 1000 and 1100 Costa include the preparation of a Draft and a Pinal FS document

35 laok 1200 - Poot RIPS Support

At the requut of EPA a portion of the LOE originally budgeted for this task will be transferred and used to offset LOE planned in Task 1100 - FS Report Additional time will be transferred to fiscal year 1993

11922420 -2shy

I I

I

) CRAFT

40 PROJECT JWIAGEMENT

The overall project management and control of the Nyanza Operable Unit III RIFS is discussed below

41 Pro1ect Organization

Mr George Gardner the Program Manager ia responsible for the overall management and implementation of the RNUS ARCS I contract as performed in us EPA Region I Mr Walter Martin will serve as the Project Manager for Work Assignment No 02-lLlS and has the prim~ry responsibility for the implementation and execution of the work Aaaignment including technical quality oversightreview control of coats and schedule and implementing appropriate quality aurance procedures during all phases The technical support staff will be drawn fro the HNUS Wilmington Maaaachusetts Program Managnt Office If specialized support is required personnel frOID other HNUS offices may be utilized

4 2 Quality Aaaurance (Qa) and Data Manaq-nt

All work will be performed in accordance with the RNUS ARCS I QA PrOCJrU which haa been submitted under separate cover Siteshyspecific QA requirnta are in accordance with the QA QC Plan developed for the Nyanza RIFS assignment and provide 9eneral guidance on project or9anization and responsibility QA objectives cfor uaaurement data and control storage and documentation of data and inforution

43 Pro1ect Schedule

The overall Project Schedule (Figure 4-1) shows the tasks and activitiea for the reaaibility Study Revision efforts The schedule begins upon concurrence with and approval of this Draft Work Plan AaenDent by EPA The schedule ia baaed on prompt EPA approval of this Work Plan Amendment Upon approval the schedule uy be revhed so that actual dates replace the proposed dates

4 4 Coot Batate

The overall coat estimate for the performance of the work described in thh Work Plan Amendment is presented in a separate document the Detailed Coat Estimate The coat represents the estimated costa baaed on the execution of the scope of work described in section 30 The actual scope of work and coat uy change durin9 the execution of this assignment

-JshyW922420

I I

I

) CRAFT

40 PROJECT JWIAGEMENT

The overall project management and control of the Nyanza Operable Unit III RIFS is discussed below

41 Pro1ect Organization

Mr George Gardner the Program Manager ia responsible for the overall management and implementation of the RNUS ARCS I contract as performed in us EPA Region I Mr Walter Martin will serve as the Project Manager for Work Assignment No 02-lLlS and has the prim~ry responsibility for the implementation and execution of the work Aaaignment including technical quality oversightreview control of coats and schedule and implementing appropriate quality aurance procedures during all phases The technical support staff will be drawn fro the HNUS Wilmington Maaaachusetts Program Managnt Office If specialized support is required personnel frOID other HNUS offices may be utilized

4 2 Quality Aaaurance (Qa) and Data Manaq-nt

All work will be performed in accordance with the RNUS ARCS I QA PrOCJrU which haa been submitted under separate cover Siteshyspecific QA requirnta are in accordance with the QA QC Plan developed for the Nyanza RIFS assignment and provide 9eneral guidance on project or9anization and responsibility QA objectives cfor uaaurement data and control storage and documentation of data and inforution

43 Pro1ect Schedule

The overall Project Schedule (Figure 4-1) shows the tasks and activitiea for the reaaibility Study Revision efforts The schedule begins upon concurrence with and approval of this Draft Work Plan AaenDent by EPA The schedule ia baaed on prompt EPA approval of this Work Plan Amendment Upon approval the schedule uy be revhed so that actual dates replace the proposed dates

4 4 Coot Batate

The overall coat estimate for the performance of the work described in thh Work Plan Amendment is presented in a separate document the Detailed Coat Estimate The coat represents the estimated costa baaed on the execution of the scope of work described in section 30 The actual scope of work and coat uy change durin9 the execution of this assignment

-JshyW922420

) DRAFT

1 so EQOIPIIEIIr AHD SUPPLIES

Equipment including computers vehicles and routine ott ice equipment are required to complete this work assignment It ~dditional equipment ia required during the conduct ot thh asaiqnment those requirements will be i dentified Supplies to be used i n the conduct of this assignment include general ottice supplies

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