Camp Earthworks Pgma San Martin - Conga Rev01

7/28/2019 Camp Earthworks Pgma San Martin - Conga Rev01

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CONGA PROJECT

CAMP EARTHWORKSPONGO CONGA

GENERAL ENVIRONMENTAL MANAGEMENT

PLAN

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SAN MARTIN CONTRATISTAS GENERALES S.A.

NAME SIGNATURE DATE

PREPARED BYEng. Juan Jose Gambini

Chief of SSA 04/06/2010

REVIEWED BYEng. Jorge Kuong

Operations Manager10/06/10

APPROVED BY Eng. Jorge KuongOperations Manager

10/06/10


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SAFETY, HYGIENE AND ENVIRONMENTAL DEPARTMENT PMA/SMCGSA

GENERAL ENVIRONMENTAL MANAGEMENT PLANCamp Earthworks Pongo - Conga

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CONGA - YANACOCHA PROJECT Page. 2 of 45


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CONTENTS

1.0 INTRODUCTION 8

2.0 ENVIRONMENTAL POLICY 8

3.0 OBJECT 8

4.0 SCOPE 9

5.0 RESPONSABILITIES 9

5.1 THE PROJECT MANAGER. 9

5.2 THE OPERATIONS MANAGER. 9

5.3 FIELD SUPERVISORS 9

5.4 THE CHIEF OF SAFETY, HYGIENE AND ENVIRONMENT 10

6.0 INTERNAL ENVIRONMENTAL PROTECTION REGULATIONS 11

6.1 GENERAL 11

6.2 WASTE AND EFFLUENTS 12

6.3 PROTECTION OF FLORA AND FAUNA 12

6.4 PROTECTION OF HUMAN ENVIRONMENT 12

6.5 PROTECTION OF PHYSICAL ENVIRONMENT 13

6.6 PROTECTION OF WATER 13

6.7 PROTECTION OF AIR 13

6.8 ENVIRONMENTAL INFORMATION AND REPAIR 13

6.9. WORK STATIONS 13

7.0 INITIAL PROCEDURES 14

7.1 CAMPSITE INSTALLATION 14

7.2 DISPOSAL STATEMENT 14

7.3 HISTORICAL AND ARCHEOLOGICAL REMAINS 14


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7.4 DRINKING AND INDUSTRIAL WATER SUPPLY. 14

7.5 SANITARY FACILITIES. 15

7.6 FLUID WASTE MANAGEMENT. 15Lubricants, Gas and Toxic Fluids...............................................................................................................15

Solid Waste Disposal..................................................................................................................................15

8.0 PROCEDURE DURING EXECUTION 17

8.1 STORAGE, HANDLING AND TRANSPORTATION OF CONTAMINANT ANDHAZARDOUS MATERIAL. 17

Permit for the Use of New Hydrocarbons and Derivatives thereof 17

17

Hydrocarbon Storage 17Containment System for Storage Tanks and Hydrocarbon and Waste Oil Drums.....................................17

Containment System for Stationary or Semi-Stationary Engines..............................................................18

Containment System for Different Casualties............................................................................................18

Maintenance and Cleaning..........................................................................................................................18

Disposal of hydrocarbon spilled within the system....................................................................................18

Restrictions.................................................................................................................................................19

Prevention of Spills.....................................................................................................................................19

Fuel Transport 19

Labelling, Handling, Transportation and Storage 20

Hydrocarbon Spill Management 21

Fuel Filling 21

Safety Standards for Operations at the Temporary Fuel Station 21

8.2 HYGIENIC SERVICES 24

BACKGROUND 24

GOALS 24

LIABILITIES 24

PROCEDURE 24

8.3 FLORA, WILD FAUNA AND DOMESTIC ANIMALS PROTECTION 25

INTRODUCTION: 25

GOALS: 25


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SCOPE: 25

DEFINITIONS: 25

CONTROL MEASURES: 25

8.4 VEHICLE WASHING PROCEDURE 27

Object. 27

Scope. 27

Definitions. 27

Procedure. 27

8.5 TOPSOIL MANAGEMENT PLAN 28

Work Planning 28

Considerations 28

Clearing and Piling of Topsoil 28

ALL WORKS WILL BE CARRIED OUT IN LINE WITH THE PROJECT

ENGINEERING DESIGN, AND ALL ENVIRONMENTAL MEASURES WILL BETAKEN AS SET FORTH IN THE CONGA YANACOCHA PROJECT'SENVIRONMENTAL IMPACT ASSESSMENT. 29

8.6 CONTROL OF SUSPENSION DUST 30

Objective 30

Scope 30

Procedures 30

8.7 PROTECTION OF ARCHEOLOGICAL RESOURCES 31

8.8 WEIGHING ACCESSES AND PLATFORMS ON TOPSOIL DEPOSITS 33

8.9 PROCEDURE TO CONTROL EROSION AND SEDIMENTS 35

OBJECTIVE 35

SCOPE 35


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REFERENCES 35

DEFINITIONS 35

RESPONSABILITIES 35

DEVELOPMENT 36

Considerations before work 36

Considerations during labour. 36

Additional Considerations. 36

8.10 NOISE CONTROL 38

8.11 PLAGUE CONTROL 38

8.12 FACILITIES FOR EQUIPMENT MAINTENANCE. 38

8.13 QUARRIES AND DEPOSITS. 39

8.14 PROTECTION OF AIR 39

8.15 WATERCOURSE SAFEGUARD 39

8.16 DUMPS. 39

9. SUMMARY OF ENVIRONMENTAL CONSIDERATIONS DURING THECONSTRUCTION STAGE 41

Mobilization and demobilization. 41

Erosion and Sediment 41In slopes......................................................................................................................................................41

Platforms.....................................................................................................................................................41

Undisturbed Areas......................................................................................................................................41

Temporary Accesses...................................................................................................................................42

Dump Maintenance.....................................................................................................................................42

Topsoil Excavation.....................................................................................................................................42

Topsoil Transportation................................................................................................................................42

Rock Excavation and Transportation..........................................................................................................42

Sediment cleaning.......................................................................................................................................42

Installation of Surface Water Control Berms.............................................................................................42

Sediment Control Structures in the Diversion Ditch..................................................................................42

Installation and Removal of Drains............................................................................................................42

Opening and Exploitation of Quarries........................................................................................................43


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10. ENVIRONMENTAL INSPECTION FORM 44Yes..............................................................................................................................................................44


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1.0 INTRODUCTION

San Martin Contratistas Generales S.A. is a Peruvian capital contractorcompany, with broad experience in mining and construction. We are specialistsin Surface Mining, Exploration, Diamond Drilling and Underground Miningservices, Construction, Transportation and Geo-technique.

Our participation in a large number of ambitious projects certifies our technicaland operative capacity. Backed by an excellent human group, and relying on thecontribution of the most modern stock of equipment in the market, we thoroughlydevelop all the stages of a project, applying the most fitting techniques toplanning, execution and control of operations.

San Martin Management uses its best endeavour to make sure that all theservices it provides comply with all contractual and statutory requirements withthe client, local codes and regulations, and in general, with all standardsdemanded for good practice in mining and engineering.

One of the basis for a long term sustainable development is the protection of ourEnvironment. This is one of the most complex variables that we consider in theexecution of any type of operations.

2.0 ENVIRONMENTAL POLICY

It is San Martin's policy to provide support to protection, in order to conductoperations with the least risks to Environmental degradation; displaying allnecessary and convenient efforts to manage the same.

This policy is implemented through ongoing evaluation (ongoing improvement) ofEnvironmental liabilities and a strict management of Environmental protection.

San Martin, very well aware that prevention and Environmental Protection are theonly tools that may be used to preserve our atmosphere, flora, fauna andecosystem in general, has developed an Environmental Management Plan, undera real and professional approach to create an aggressive and positive preventionculture within our organization.

3.0 OBJECT

The purpose of the Environmental Management Plan is to comply with allEnvironmental Protection standards demanded by our clients and by thePeruvian State, based on achieving positive attitudes from San Martin staff,oriented to the appropriate Environmental Protection, complying with theEnvironmental Protection Regulations for Mining Activities, SD 016-93 EM, andthe Mining Safety and Hygiene Regulations SD 046-2001-EM.

The Environmental Management Plan will be expanded, modified, and/orincreased in line with the requirements demanded by the Project's EnvironmentalImpact Assessment - CAMP EARTHWORKS Pongo - Conga Yanacocha.


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Among the general objectives of the PMA programme:1. Ecosystem preservation, both land and water.

2. To avoid, correct, mitigate, or compensate negative environmentalimpacts produced directly or indirectly from the execution of thedifferent construction and operation stages of our projects.

4.0 SCOPE

This program applies to all personnel working at San Martin and itssubcontractors assigned to the CAMP EARTHWORKS Pongo - Conga Project.

5.0 RESPONSABILITIES

San Martin is responsible for applying this Plan and ensuring complianceherewith by all its personnel and through all the operations.

5.1 THE PROJECT MANAGER.a) Assign the necessary resources to achieve compliance with all the

program measures and provide the relevant assistance to comply with theprogram activities.

b) Grant the resources to take all corrective measures in case of acontingency.

c) Incorporate the necessary clauses in sub-contractors' contracts to force

them to comply with the Company's Environmental Protection standards.a) Grant the necessary resources and means to train personnel onEnvironmental Protection.

d) Supervise the work of the Chief of Safety, Hygiene and Environment, andevaluate his/her performance.

5.2 THE OPERATIONS MANAGER.b) Supervise the development of the program through ongoing recognition of

workers performance in the filed.c) Set out goals and objectives.d) Deliver resources and provide relevant assistance for the development of

the different program activities.e) Prepare, together with the Chief of Safety, Hygiene and Environment, thesituations of potential contamination risk and the plans to pursue toprevent the same.

5.3 FIELD SUPERVISORSa) Define the different tasks to be developed in the execution of the works,

instruct the workers on the proper manner to carry out the same, thusdiminishing to the minimum the Environmental Contamination Risk.

b) Instil in its subordinates respect for the Environment, and motivate themto protect the same.

c) Verify compliance with all program instructions, warnings and procedures.d) Report and look into all types of Environmental Accidents and/or

Incidents.


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e) Collaborate in the preparation of Prevention Procedures.f) Responsible for reporting to the Head Office any Incidents that occur in

their work area, or any condition that represents an Environmental Risk soas to prevent an accident and/or Incident.g) Compliance with all procedures and lineaments of the work program.h) Procure information on the different activities to be developed pursuant to

the Environmental Management Plan.

5.4 THE CHIEF OF SAFETY, HYGIENE AND ENVIRONMENTa) Prepare training plans for workers in the different aspects of the program.b) Follow up compliance with the different activities of the program and

prepare evaluation guidelines.c) Determine, together with the Project Manager, the different tasks that

imply a Potential Environmental Contamination Risk.d) Send reports to client and San Martin Management, on request.e) Receive suggestions on the procedures and determine their application.f) Responsible for periodically reporting and instructing the staff on the

different aspects of Environmental Protection.


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6.0 INTERNAL ENVIRONMENTAL PROTECTION REGULATIONS

The application of the environmental policy and the commitment assumed by SanMartin for the protection of our environment renders necessary to issueEnvironmental Protection standards, which are to be broadcast and respected byall workers and contractors, through Internal Environmental ProtectionRegulations.

These regulations must include the following issues:6.1 General6.2 Waste and effluents6.3 Protection of Flora and Fauna6.4 Protection of Human Environment6.5 Protection of Physical Environment

6.6 Protection of Water6.7 Protection of Air6.8 Environmental information and repair6.9. Work stations

At the Conga Yanacocha Site, San Martin will apply its own InternalEnvironmental Protection Regulations in line with the activities carried out, theenvironment where its operations are developed, and based on the subjectslisted and described below.

It is to note that the Environmental Management Plan will be adjusted inaccordance with the environmental commitments assumed by the owner, whichwill be bound to Yanacocha's Environmental Impact Assessment.

6.1 GENERAL

The land we live on belongs to us all; to the ones who these days areresponsible for protecting, repairing, and maintaining it for us all and thegenerations to come, to which we owe the legacy of a healthy land worth livingon.

Environmental Protection benefits us all, improves life quality, and protects ourhealth and our work sources.

It is an individual responsibility to broadcast environmental standards and

principles, because environmental protection is everybody's responsibility, at alltimes, in our jobs, at home, and during recreation activities.

The principles and recommendations contained in the Internal Regulations mustbe applied as a routine and exhaustively, at the workers will. If at any time itsimmediate and/or full application becomes difficult, viable action plans must bedefined bound to its integral application.

Proactive, alert, continuous, and systematic environmental management willimprove our work condition and the life quality of the communities where wedevelop our economic activity and will constitute a guide and example to ourcollaborators.

Training, education, and transmission of cultural values oriented toenvironmental protection, are as important a legacy as the physical, biologicaland aesthetic quality that we maintain in our environment.


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6.2 WASTE AND EFFLUENTS

Technology allows transforming the elements of the environment to put them tothe service of human well-being.

In manufacturing a product, which may be toxic in itself, raw materials orhazardous supplies may be used and/or alterations may be produced in theavailability of certain hazardous substances, while others may be transformedadopting hazardous characteristics.

Waste from a process may also be harmful and the products already used,upon accumulating and interacting with other elements, may become anenvironmental risk.

This risk may either come from toxicity or from the volume of waste or effluent.

These principles gain special importance when related to garbage andbiological waste, industrial waste, sewage, junk, debris and toxic waste,especially paint, batteries, mercury, sprays, chlorine, anti-freeze, adhesives,plastic foam, varnish, grease, halons, solvents, acids, resins, oils, lubricants andrefrigerant fluid and spray chlorofluorocarbon, break fluids, fuel, lubricants,detergents or other chemical products.

6.3 PROTECTION OF FLORA AND FAUNA

Wildlife, besides its aesthetic value, which contributes to human life quality,

plays a significant role in water and soil preservation, represented in the geneticpatrimony of the planet, and acting as an essential component in the bio-geochemical, trophic and development cycles which, ultimately, enable oursurvival.

We must not, then, spurn the existence of an animal or plant, no matter howinsignificant they might seem to us, since many times these small beings areessential in the balance of an ecosystem.

6.4 PROTECTION OF HUMAN ENVIRONMENT

We must never forget that one of the fundamental components of the

environment is the human being, both the current inhabitant, who lives andworks in nearby places, or, along the routes that surround the work areas, suchas historical ones, represented by constructions, craftsmanship and othervestige left after them.

Let us be reminded that, in general, we are only temporary visitors of placeswhere other populations have inhabited and worked, and will continue being sofor generations, after we complete our activities.


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6.5 PROTECTION OF PHYSICAL ENVIRONMENT

Physical environment, although inanimate, is the basis to sustain natural life,

and therefore, deserves as much care as the living environment. Thiscomponent has taken hundreds or thousands of years to take shape and getorganized, and its alteration may deeply affect the natural balance.

6.6 PROTECTION OF WATER

Water is essential to life. No activity, vital or economic, is possible in itsabsence, and therefore, care and reasonable use of water are supported bylegal regulations.

6.7 PROTECTION OF AIR

Atmospheric contamination produces environmental damage and alsoprofessional and common diseases.

Each person, within the sphere of his/her work, must use his/her bestendeavour to improve environmental conditions. This is how life quality ofworkers is improved and why the pertinent legislation that protects them isobserved.

6.8 ENVIRONMENTAL INFORMATION AND REPAIR

It is frequently inevitable to provoke environmental alterations andcontamination, whether by accident, upon developing a project.

Likewise, many times we are witnesses to alterations while taking place oralready consummated that have not been corrected.

Our attitude has to be vigilant and responsible to minimize or repair the damageproduced, whether acting directly or reporting to management.

6.9.WORK STATIONS

The existence of health risks, such as noise, heat, dust, gasses, toxicsubstances, radiation, poor ventilation and illumination, humidity, andovercrowding makes offices, workshops and other places, where we develop alarge part of our working life, are very important places where environmentalprotection measures should be taken.

These are also places where resources and supplies are intensively used, anda large quantity of waste is emitted.


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7.0 INITIAL PROCEDURES

7.1 CAMPSITE INSTALLATION

Campsite installation will be carried out on sites as previously authorized byclient. If, to San Martin's criterion, locating the campsite on a different site thanthe one initially authorized is needed, client's prior authorization will berequested.

Every campsite installation, if required, will have housing zones, offices, messhall, water, latrines, septic tanks, garbage cans, etc.

Workers will be prohibited, both company's and subcontractors', fromconsuming food in areas that are not suited for the purpose, to prevent

contamination.It is forbidden to possess, consume and sale alcoholic beverages, drugs or anyother type of stimulants in any area of the facilities or work front. The foregoingwill be sanctioned with immediate dismissal.

7.2 DISPOSAL STATEMENT

All solid domestic waste or waste coming from the housings, campsites andwork fronts will be collected in special vessels located in the different work sites,transported and deposited on the place assigned for the purpose; these vesselswill be periodically filled, and compacted with a 30 cm. layer of soil, for the

purpose to maintain good sanitary condition.

Periodical cleaning and maintenance will be performed to the different campsitefacilities within the accepted sanitary standards by the client.

7.3 HISTORICAL AND ARCHEOLOGICAL REMAINS

If, during campsite installation, or at any construction stage any historical, orarchaeological remains were found, works will immediately be halted, guardswill be positioned in order to prevent possible looting, and immediate notice willbe given to client, who will evaluate the situation and determine when and howto continue with the works.

7.4 DRINKING AND INDUSTRIAL WATER SUPPLY.

All necessary facilities will be constructed and/or maintained, as required, forwater supply, both for use during the construction stage as for general service.Water tanks, tanker trucks, pipelines, pumps and others will be available for thepurpose.

Periodical water samples will be taken to be subsequently analysed atauthorized lab (responsibility of Yanacocha).

Water facilities and reservoirs will be duly signposted. Large water bottles or

boxes will be placed in the different work fronts for easy access by personnel.


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7.5 SANITARY FACILITIES.

Hygienic services will be installed in the quantity and quality as required

(responsibility of Yanacocha) to cover the whole of San Martin's personnelrequirements. These hygienic services will have a cleaning and disinfectionmaintenance system to guarantee all the workers' health and well being.

Likewise, chemical bathrooms will be implemented in the field (Disal) for use byworkers. These bathrooms will be located in the different fronts and in thequantity as provided by the current regulations.

Employees both, company and subcontractors', are forbidden from dischargingsewage upon watercourse.

7.6 FLUID WASTE MANAGEMENT.

Lubricants, Gas and Toxic Fluids

Comprise all types of waste solvents coming from industrial processes, gasoline,flotation reagents. These fluids will be collected in portable vessels to be properlysealed and their content identified for subsequent removal from the sector.

Solid Waste Disposal.

Solid waste may be divided in:

Domestic: plastics, food waste, cardboard, cleaning rags(free of grease) glass soda bottles, paper, etc.

Authorized sanitary landfill, asinstructed by client.

Green

Inflammable: rags and other materials soaked in oils,grease, petroleum and solvents, empty paint cans, spray

and inflammable chemical product cans, used drainedfilters, used items at workshops

Hazardous waste landfill, asauthorized by DIGESA

Authorized by EPS-RS or EC-RS

Blue

Hazardous:used ni-cd piles and batteries, printer andphotocopy toners, chemical drums, halon sodium type

fluorescents and lighting and mercury, etc., burn up oils.

Hazardous waste landfill, asauthorized by DIGESA

Authorized by EPS-RS or EC-RS

Red

Industrial and Construction: Metallic, plastic, glass andceramic type non-hazardous waste, cement waste, and

textile waste, provided they are not contaminated.

Hazardous waste landfill asauthorized in Lima, from the

authorized EPS--RS or EC-RSYellow


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Weekly order and cleaning campaigns will be carried out at all the facilities where

San Martin operates; these campaigns will consist of appointing a group of

workers, black garbage bags in hand, to collect all the waste they may findscattered on the road, access ways, workshops, quarries, etc., as well as 02times a week, after the 5 minute meeting, 20 minutes will be dedicated so thatthe whole personnel carries out this task.

Planned order and cleaning inspections have been included around the project

facilities, as scheduled in the monthly inspection program, as submitted to theChain of Command for compliance.

The training plan carried out on a monthly basis, as provided to all stakeholders,

also include training in order and cleaning.

This plan will be modified pursuant to the guidelines of Yanacocha's

Environmental Impact Assessment.


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8.0 PROCEDURE DURING EXECUTION

8.1 STORAGE, HANDLING AND TRANSPORTATION OF CONTAMINANTAND HAZARDOUS MATERIAL.

Permit for the Use of New Hydrocarbons and Derivatives thereof

San Martin will process the Consumer Permit directly at the Ministry of Energy

and Mines, pursuant to the appropriate administrative procedure (TUPA) asprovided by the Peruvian Legislation.

Central Warehouse will be responsible for ensuring authorized use of

hydrocarbons by suppliers and subcontractors working for San Martin. Purchasing new hydrocarbons and derivatives thereof will be in strictly necessary

quantities in order to avoid the expiration thereof, and originating additionalexpenses for their handling and disposal as hazardous waste.

The Warehouse will keep record of the quantities of the different types of fuel that

are being used in the project. This data will be submitted, on a monthly basis, toSan Martin's Security, Safety and Environment Department.

Hydrocarbon Storage

Containment System for Storage Tanks and Hydrocarbon and Waste OilDrums

All storage tanks and hydrocarbon, lubricant or used oil drums must

mandatory have a leak or spill containment system.

The capacity of the containment system must be 110% the capacity of the

tank or drum. For areas that contain a few tanks or drums, the containmentsystem must be 110% the capacity of the largest tank or drum.

The shape of the containment system and the materials to be used in its

construction will be at supervisor's criterion, provided that systemwaterproofing is guaranteed.

The area of the containment system must consider sufficient margin so that,

if, for any reason, the drums should fall, spill will take place within thecontainment system.

In the case of laminated containment systems, the drums should be placed

on top of the wooden pallets to avoid containment system breakage uponhandling the drums.

The edges of the geo-membrane or the absorbent must be buried under or

anchored to the ground creating a berm around the whole containmentsystem.

The design should consider easy system handling and cleaning. It is

suggested that the containment system has a gradient towards one of thecorners to ease cleaning actions.


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Containment System for Stationary or Semi-Stationary Engines

Stationary or semi-stationary engines are such luminary, motor pumps, andgenerator sets which use petroleum derivatives for operating.

All stationary and semi-stationary engines must mandatory have a leak or

spill containment system.

Containment systems for luminaries and motor pumps must be portable and

easy to handle for eliminating spills, as well as to clean the same.

The shape of the containment system and the materials to be used in its

construction will be at San Martin's criterion, provided that systemwaterproofing is guaranteed.

If the engine is moved to another work front, it is the supervisor's

responsibility to simultaneously move the containment system.

Containment System for Different Casualties

The Maintenance workshop and the Warehouse must have a stock of

containment trays to prevent leaks and spills from the machinery stationed formaintenance.

Personnel transport vehicles and pick-up trucks must have containment trays

in case of unit breakdown.

The information about the product that is being stored in the tank/drum

(Security Sheets / MSDS) must be available and kept handy for all workers in

the operative area.

Maintenance and Cleaning

It is the responsibility of the user area to ensure that all containment systems

are kept in proper operating condition.

Any possible damage (breakage, holes, deformations, etc.) caused to the

containment systems is to be immediately repaired.

Containment systems must be periodically checked.

Proper operating condition implies constant cleaning of spills contained within

the systems.

Disposal of hydrocarbon spilled within the system

Waste hydrocarbon and oils must be returned to their storing tanks or drums

immediately after they are discovered.

If cleaning is carried out with absorbent rags, these rags must be squeezed

prior disposal and stored in properly signposted cylinders. All materialimpregnated with hydrocarbon is to be removed from the operations andtreated as solid hazardous waste. Final disposal or treatment thereof will becarried out by an authorized company by DIGESA for the purpose.


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Restrictions

It is totally forbidden to drain off / dump into the environment anycontaminated water with hydrocarbons or lubricants, or to dump used oilcontained in the systems directly into the environment.

It is forbidden to dispose of materials impregnated with hydrocarbons

together with domestic waste. Storing materials impregnated withhydrocarbons will only be done in specific cylinders.

Prevention of Spills

Each operative area must have one (1) emergency Kit in case of spills.

o 05 polyethylene sacks.

o 01 pick.o 01 shovel.

o 05 absorbent rags.

o 01 incident report.

o 01 pen.

o 01 pair of neoprene gloves.

The information about the product that is being stored in the tank/drum

(Security Sheets / MSDS) must be available and kept handy for all workers inthe operative area.

Fuel Transport

Fuel transport from Cajamarca to the site will be as per defensive driving

standards, at the established speeds as set forth in Yanacocha's security andenvironmental regulations.

Before the fuel transport unit leaves for the site, it must be submitted to the

Equipment pre-use inspection, signed by the supervisor in charge, who is toverify that the unit presents no leaks or any hidden risks that may put at riskthe lives of people or the environment.

Under no circumstance will there be fuel filling along the stretch Cajamarca to

the site; this, in order to prevent spills that may adversely affect otherproperties, or being exposed to theft or otherwise.

The operator in charge of fuel transport must have AII driver's licence, becertified to operate the unit, and have Yanacocha and San Martin's induction.

Any transfer of inflammable fluids will be carried out under the necessary

safety measures, being required at least 01 extinguisher and/or fireextinguishing elements.

All fuel transport vehicles will carry a basic Kit for emergencies (absorbent

rag, industrial rag, plastic bags, sacks, pick and shovel and neoprene gloves)and the appropriate MSDS Sheet and instructions booklet on the use of theKit.

All fuel transport units will carry the appropriate signposts (Risk Rhombus,

NFPA, etc.).

All transport units will have communication means with San Martin andemergency response services.


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Inflammable fluids dispatch will be carried out at open spaces, ventilated, and

far from open flames.

It will be verified that inflammable elements and/or Fuels are not stored,transferred, or moved from one container to another less than 15 metersaway from places where work is done with open flames or any other sourceof ignition.

Storing premises must be properly ventilated to prevent accumulation of

steam or gas in the area.

It will be verified that premises destined to storing inflammable products

and/or fuel are at least 7 meters away from any construction and more than15 meters away from open flames or any source of ignition.

Personnel in charge of the unit must have been properly trained and carry a

copy of the Contingency Plan.

Labelling, Handling, Transportation and Storage

San Martin's Security Department will be responsible for advising the

Administration area that all hydrocarbon containers used by all the areasshould have a proper labelling system.

It will verify that each area is provided with information about the

hydrocarbons that they are using. This information must be kept handy forall workers. It is warehouse personnel responsibility to deliver a copy ofMSDS.

All areas involved in hydrocarbon storage must implement regular inspection

and maintenance programs of storage facilities (containment systems, tanks,pipelines, drainage, etc.) to ensure their integrity, and keep the appropriateupdated records.

Warehouse will be in charge of labelling the vessels that contain

hydrocarbons and will post in visible places the appropriate MSDS.


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Hydrocarbon Spill Management

Spills may happen due to mechanical failures of equipment, failure in the

design of hydrocarbon storage facilities, deterioration of mechanical parts,lack of transport control, and incorrect supply of machinery and equipment.

In order to keep better control of spills and take the necessary measures to

prevent the occurrence, it is necessary that all the personnel responsible forany hydrocarbon or chemical substance spills submit a Spill Report to SanMartin Security Supervisor.

TheSMA PRO - Spill Prevention and Controlprocedure will be applied.Fuel Filling

Initial fuel filling will be carried out through a fuel cistern truck, which must

comply with the specifications in 5.3., and the Hydrocarbons TransportationSafety Regulations (S.D. 026-94)

Must carry the appropriate shipping document (Waybill) prepared pursuant to

the provisions of the DGH, as well as the appropriate safety booklet.

During hydrocarbon loading and unloading, the hand-break should beproperly positioned to avoid any movements of the vehicle during theprocess. In every opportunity, the carrier must make sure that a dulyqualified person supervises the operation, at all times. The engine should beturned off.

In case of vehicle accident, the local authority will be notified immediately and

a report with the details will be delivered to the DGH.

In case of spills and leaks, the vehicle will be removed from the road and all

available means will be used to eliminate the fluid in a safe manner.

The owner/operator of the cistern will provide insurance coverage and submit

supporting evidence of such coverage, covering the following:

The Drivers.

The Contents of the cargo.

Civil Liability

Motor Vehicle Accident.

Safety Standards for Operations at the Temporary Fuel Station

Unloading or transferring inflammable fluids from the cistern trucks tounderground deposits will be carried out through hermetically sealed


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hoses that are not affected by such fluids and do not spark by rubbing orbumping, neither in the end connected to the truck or in the tank filling

nozzle. The trucks will be positioned within the gas station manoeuvringyard to unload transported fuel. It is forbidden, as safety measure, thatcistern trucks park on the public thoroughfare to do the unloading. Everyunloading requires grounding the vehicle.

The temporary fuel station will be equipped with at least two (2) twelve

Kilogram (12 Kg.), or fifty kilogram (50 Kg.) portable fire extinguishers.Their extinguishing agent must be ABC multiple purpose, to be placed invisible places and be kept handy, and will carry a booklet with usinginstructions.

Inspection, maintenance, and reloading of this equipment will be under

NFPA-10 standards.

It is forbidden to smoke or use open fire on the Fuel Filling Station.

Visible warning signs should be posted stating the prohibition.

It is forbidden to park vehicles, day and/or night, at the Fuel Filling Station.

Entrances, exits, and manoeuvring yards must be kept clean and free of

obstacles, and must have visibly and clearly painted arrows showing theway.

All personnel working at the temporary fuel filling station must be properly

trained in the use of fire extinguishers and fire fighting practices.

In case of fuel spill, internal traffic must be interrupted and the spill should

be immediately dried, before allowing the driver to start the vehicle.

Hydrocarbon soaked rags used to dry the spills should be deposited in a

metal vessel with a lid. It is mandatory to have cylinders and/or buckets

full of sand. When being filled with fuel, storage tanks must not have steam leaks

through the measurement or unloading connections.

Before filling fuel the content of the tanks should be measured to control

whether they have sufficient capacity to avoid overflow and spills whendisconnecting the reception hose.

Operation areas must have a specific zone for storing and handling wasteproduced by the operations, conditioned under the Environmental Protectionstandards.

Any contaminant, or hazardous materials, or elements and/or waste, such as:fuel, explosives, lubricants, untreated sewage, will be safely transported,adopting all necessary measures to safeguard the integrity of the personnel andthe environment.

Fuel material and inflammables will be stored in specially conditioned andisolated places within the facilities of the site.

Fuel transport vehicles must be duly signposted pursuant to NFPA and DOTstandards.

Storage of contaminant and/or hazardous materials will be carried out avoidingspills, loss, theft, and fire, by handling them under and observing allrecommendation and legal regulations.


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Facilities for handling and storing hazardous materials must comply with theregulations set forth, related to signposting and isolation of sources of ignition.


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8.2 HYGIENIC SERVICES

BACKGROUND

The use of stationary HHSS has become an integral part of Environmental Protectionand for fitting out better sanitary and working conditions.

It is the company's interest to have suitable hygienic services that adhere to health andenvironment standards, in sufficient quantity and size to satisfy the demand of all thestaff, as well as to provide acceptable hygienic comfort to the worker.

There are two types of hygienic services in the project: stationary hygienic services,

which are such built as part of the permanent facilities; and portable hygienic services(Disal); we will be using both in this project.

Portable hygienic services have water, own water, pump system and are permanentlycleaned every other day by specialized staff. Likewise, it has a washbasin for personalhygiene.

GOALS

Provide the employees working in the different fronts of the project with the necessaryhygienic conditions at their work fronts, keeping a clean environment and in goodcondition.

LIABILITIES

All persons that work in the CAMP EARTHWORKS Pongo Conga Project for SanMartin, that require this service, are responsible for the compliance with thisprocedures.Maintenance and cleaning of stationary bathrooms is responsibility of the managementarea.

PROCEDURE

Each work area or temporary campsite must have hygienic services. A quantity of suitable stationary bathrooms is to be considered as per the number

of workers in the area. One stationary bathroom for 20 persons.

Maintenance and cleaning of the stationary bathroom should be guaranteed, on an

everyday basis.

Place the stationary bathrooms strategically within the work station so as to make

them accessible, and protect them from being impacted by the equipment.

It is recommended that the bathrooms are installed 50 meters away from the work

area.

It is mandatory to use the stationary bathroom.

Inform the supervisor, immediately, if the stationary bathrooms are in bad condition.

It is forbidden to damage and/or manipulate the stationary bathrooms.


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8.3 FLORA, WILD FAUNA AND DOMESTIC ANIMALS PROTECTION

INTRODUCTION:

Flora, wild fauna and domestic animals are some of the most susceptible resourcesof suffering impacts from any human activity, and their presence or absence is aclear indicator of the degree of disturbance in the area. It is thus that San Martin isespecially interested in not affecting the flora, wild fauna, and domestic animals thatmay be found within the operation areas.

GOALS:

1.1. To protect the flora, wild fauna, and domestic animal resources, whether presentor moving within our operations, avoiding any hunting, accidents, or unjustifiedmanipulation.

1.2. Report to the Environmental Department any unauthorized cutting of floraspecies and the death of wild fauna species, or domestic animals.

SCOPE:

All personnel working for San Martin, including subcontractors.

DEFINITIONS:

1.3. Wild Flora:

Group of vegetable species

1.4. Wild Fauna:

All mammal species, birds, reptiles, fishes and invertebrates that freely inhabitand do not live in captivity.

1.5. Domestic Animals:

All those which move under the care of their owners.

CONTROL MEASURES:

It is totally forbidden to manipulate and/or alter, without justification, the flora, fauna

and domestic animals, within the areas where our company develops its operations.

All personnel working for our company must report to his/her immediate supervisor

any irregularities that may affect the flora, wild fauna and domestic animals that arefound within our operations area.

Field staff will report their immediate supervisor of any problems that may occur with

domestic animals from neighbouring populations to our operations.


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All personnel working for San Martin, must report its immediate supervisor should

they find a dead animal or in imminent danger in the operations area.

In case a domestic animal is run over near any populations, the zone of the accidentshould be signposted with tape and the immediate supervisor immediately informedof the incident, who will in turn inform Yanacocha's Community Relations personnelso that they may establish the payments (if applicable), or take the appropriatecorrective measures to compensate the owner of the animal.

In case a domestic animal is run over in an external road far from any populations,

the animal should be removed to the side of the road and the zone signposted andthe supervisor reported, who will in turn inform Yanacocha's Community Relationspersonnel so that they may identify the zone of the accident and proceed inaccordance with their internal procedures, which will be abided by San Martin.

In general, any supervisor in charge of an area, who is informed by his/her personnel

of the dead or danger of animals within the operations area must issue an incidentreport and submit it to the Community Relations supervisor.

Yanacocha's Community Relations Department will be the sole authorized to remove

or extract any flora or fauna species that are within the property of the Conga -Yanacocha project.

It is strictly forbidden to hunt or catch any wild fauna or domestic animal specimens

within Yanacocha's property.

It is strictly forbidden to fell or cut or burn any wild flora species within Yanacocha's

property.


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8.4 VEHICLE WASHING PROCEDURE

Object.

The following procedures refer to the proper methods to handle and dispose ofwaste waters or solids accumulated in vehicle washing sumps in the operationszone.

Maintenance workshops accumulate water and solids in the sumps producedfrom truck and machinery washing and cleaning processes.

Scope.

Applies to all operations developed by San Martin C.G.S.A.

Definitions.

Car Wash: It is the place specially conditioned to wash vehicles and

machinery observing proper environmental management.

Pools: Drainage system where water product of the washing is catch and

recycled by means of a pumping system and conducted to a pool for reuse.

Procedure.

Vehicles and machinery may solely be washed at maintenance workshops

that have the proper system to retain oil and petroleum sediments andresidues.

Sumps for waters coming from vehicle and machinery washing must have

traps to retain sediments. These may be the serpentine type or otherwise.Likewise, they must have a system to deposit absorbent rags, which shouldbe periodically changed.

For the construction of the treatment system (sumps), a design should be

submitted, which will be approved by client's Environmental Department.

Slurry produced from cleaning the system, if contaminated, may be taken to a

volatilization field, otherwise, it may be disposed of in slurry dumps.

It is strictly forbidden to directly dump into the system any oils, petroleum or

any other type of contaminant.

It is responsibility of the operations personnel to work under this procedure.


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8.5 TOPSOIL MANAGEMENT PLAN

Work Planning

Planning this activity should be pursuant to seasonal restrictions. Any areas thatmay be flooded during rainy season must be cleared during dry season; and, anytooling requirements related thereto must be determined and the resourcesorganized so that the clearing is carried out in due time.

Identification of topsoil in the field must be made assisted by client's EnvironmentalDepartment to ensure proper management thereof. The average thickness of thetopsoil must be determined based on the samples and testing carried out by client.

Considerations

The Supervisor is to inspect all the areas where topsoil clearing is to be

performed in order to evaluate safety risks and take the appropriate safetyprecautions.

Topsoil clearing from disturbed areas, except where slopes are too steep, in

order to ensure safety of the operation equipment.

Never allow loaded hauling trucks or front loaders to travel on the topsoil layer to

be stored in or removed from a stockpile. This could compact the topsoil,potentially resulting in the destruction of important physical and/or biological

properties of the topsoil, including, the sealing so that oxygen may inflow andoutflow.

If practicable, the topsoil will be stored in stockpiles with heights not to exceed 2

meters, in order to better preserve the biological characteristics of the soil.

Inspect the clearing, piling, and placing of the topsoil, on a daily basis, to ensure

compliance with erosion control standards and correct any deviations thereof.

Clearing and Piling of Topsoil

Topsoil must be cleared from all areas to be disturbed except for very steep

slopes in order to safely operate the equipment. The Field Supervisor is

responsible for ensuring that the topsoil is cleared under client's control. Chutes, flags and/or stakes will be used to mark the limits of topsoil clearing.

No dumping cars or front loaders will circulate on the upper layer of the topsoil

that has been piled or restored. This will cause topsoil compacting, and thepotential destruction of its most important physical and/or biological propertiesimpeding oxygen exchange in the material.

Topsoil dumps will be constructed so as to minimize the potential erosion caused

by rain water. Before establishing a topsoil dump, the supervisor in coordinationwith client's representative, will inspect the proposed dump to establish specificplans for its design and construction, including run-off control measures, if

necessary. Some control measures may require some earthmoving works priorto piling, having as an option the construction of diversion channels with


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decanting pool, barricades (stone, dry wall), levelling, silt fence placement, etc.The location and design of the dumps is client's responsibility.

Topsoil dumps, either small or large, may not be located in areas where itsrecovery is difficult or impossible or too far from the areas to be re-vegetated inthe future, including precipice edges, pit edges or otherwise.

The following practices will help maintaining topsoil quality during storage:

Topsoil should be kept separate from waste rock and gravel.

Topsoil dumps should be protected against erosion.

Excessive manipulation of topsoil should be avoided.

Waste rock should also be stored under client's approval, since it may be

later used for rehabilitation purposes.

All works will be carried out in line with the project engineering design, and all

environmental measures will be taken as set forth in the Conga Yanacochaproject's Environmental Impact Assessment.


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8.6 CONTROL OF SUSPENSION DUST

Objective

To control dust generation that affects health, the environment, and workers' visibility,caused by earthmoving works and the use of roads by vehicle's passage; also, tocontrol the noise that is generated by the use of machinery and equipment and verifythat the noise generated is within the permissible limits.

Scope

Applies to works and facilities in the different fronts in which San Martin and itscollaborators develop activities, and, where the Conga - Yanacocha project is being

executed.

Procedures

In order to control dust emissions generated from vehicle traffic on unpaved

roads or unsealed roads, the roads and paths will be permanently watered, aswell as vehicle circulation areas at the work fronts.

Demolition, excavation and filling works will be executed avoiding, as much as

possible, raising dust, using water, as permitted by the technical requirements.

These same precautions must be taken for loading and unloading trucks that

transport filling material or that remove material coming from excavations. Thesetrucks must exit the site and circulate along conveniently authorized roads byclient and their load is not to exceed hopper level or the edges of the truck bodyto later dump it on authorized dumps.

During dry season, the roads used for the works must be periodically watered to

avoid generation of dust.

The necessary cisterns will be kept on site in order to mitigate the dust generated

from the circulation of the units. These cisterns will periodically water accessroads affected by the construction.

In the crushers zone, a water cistern will be kept exclusively for watering the

whole area. This crushing system will have sprinklers and protection canvasses.

Unnecessary third-party vehicle circulation will be minimized near the work site,

thus avoiding excessive compacting, loss of vegetation, and dust generation.


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8.7 PROTECTION OF ARCHEOLOGICAL RESOURCES

Yanacocha is in charge of obtaining the CIRA for a certain area, in which it

should have identified and signposted in the field all archaeological sitestherein located that are within the operations area. This identification iscarried out determining their location in UTM coordinates; expertarchaeologists are to describe the archaeological site and register theappropriate photographic review, in addition to field Supervision by the INC.

Signposting consists of delimiting and installing landmarks and signs for

easy recognition in the field by any person working near the site.

Before executing any earthmoving activity, the responsible area supervisor

must communicate with his/her Environmental Supervisor to verify theexistence of any CIRA, and identify the archaeological sites located near the

site area, so that it may be provided with the necessary advisory to preventany impacts on the sites. Yanacocha will deliver the contractor drawings toperform this work. Yanacocha and the contractor will do joint evaluationthereof.

The most important rule is that all works are to be executed at a distance

greater than or equal to 50 meters from the archaeological polygon. Thisverification and delimitation of the available area for the works is performedin the field in cooperation with the operations department involved and theEnvironmental Supervisor, both, the client's and San Martin's.

In case it is not possible to keep this 50 meter distance from any

archaeological polygon, the following steps should be followed:

a. Marking the polygon that encloses the archaeological site or remains withstakes, barbed wire, and/or reflective tape or rely on the permanentpresence of Yanacocha and San Martin's Environmental Supervisor. Ifthe work is significant and the 50 m distance may not be respectedfrom the polygon perimeter, the polygon should be protected with asimple fence made of reflective tape, under the EnvironmentalSupervisor's supervision to guarantee intangibility thereof during theearthmoving works to be executed.

b. Placing a warning sign with the following message: "DO NOT ENTER-ARCHEOLOGICAL REMAINS" (under Yanacocha's responsibility).

c. Preventive lectures to the supervisor and personnel to work on the site.d. Periodical supervision by responsible area and both parties'

Environmental Departments. In case an archaeological finding takes place in earthmoving executed at more

than 5 meters of depth, such event must be reported to Yanacocha'sEnvironment Supervisor or to the archaeological monitor to proceed to itsidentification and Investigate the Impact on Archaeological Sites.

Contingency measures to be taken upon finding archaeological remains are

the following:a. In case isolated evidence of cultural material is found on the surface, works

being executed nearby will be halted, within a radio of 20 m surroundingthe finding; the evidences exposed will be evaluated and emergencyinterventions will be proposed, prior communication with the INC.

b. In case any isolated evidences of cultural material appear during landremoval, such as a burial or archaeological property, the works underexecution will be halted within a radio of 50 m surrounding the findings.


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c. In case an archaeological site appears that has not been identified duringprior archaeological evaluation works in the sector, protecting the site will

be sought by means of the inclusion of a Provisional Protection Polygon,including the appropriate buffer area. This procedure will not imply haltingthe works in the sector in question, but halting the same within a range ofat least 100 m surrounding the Provisional Polygon.

Following these lineaments guarantees the preservation of the archaeological sitesor remains that may be found within Conga Yanacocha's operations.


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8.8 WEIGHING ACCESSES AND PLATFORMS ON TOPSOIL DEPOSITS

Access to loading and unloading front.

Only one entrance access is permitted towards the loading and unloadingfront. If possible, no turning and/or manoeuvring areas should be provided.Trucks may enter backing up, provided that safety issues are not neglected.

In case an entrance access to another loading front is required, it is better toexpand the existing loading front, maintaining its width. In case it is reallynecessary to have another entrance access, first, the already constructedentrance should be eliminated before placing a new one. Maximum, only onevariation of the entrance will be permitted at one same unloading level, takinginto consideration the foregoing considerations.

The access must present a suitable transversal slant (raising) so as to ensureproper drainage and avoid sediment hauling.

Unloading accesses and platforms must have a berm to avoid that dumpingtruck tyres impregnate the topsoil.

Access alignment must be so as to facilitate its drainage and such of thedeposit, installing crosses with drains, if necessary, in order to ensure theproper drainage of surface waters.

Material to be used in weighing accesses

Weighing material must be, for the most part, granular material with low finecontent; this, in order to avoid affecting the topsoil and sediment generation incase of rain. Likewise, only inert weighing material should be used. In caseany topsoil is observed with high moist content (presence of slurry, cave inwhile walking, or mud covering), placing rock will be necessary.

Use of geonet is recommended in case of weights on topsoil with considerablesaturation. This will prevent using more weight than necessary and reducethe effect of impacting the topsoil.

Weighing material must be removed and disposed of in deposits. If possible,the whole weight should be removed; however, excess topsoil mixed withremoved weight should be avoided. Only a minimum quantity of weight maybe left on topsoil, and only after evaluation and acceptance by theEnvironmental Supervisor; notwithstanding, to reduce this impact, use of

geonet is recommended, as mentioned in the previous paragraph, (thismeasure is to be previously approved by the Operations Area). If geonet was used under the weight, this should be totally removed after

removing the weight.


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Restrictions and Recommendations.

Weight on the topsoil may only be placed prior evaluation and approval by theEnvironmental Department, and will only be permitted for entrance of trucksand topsoil loading and unloading equipment.

Weighing works supervision must be permanent, by the executor; and shouldany changes be required, the responsible Environment Supervisor of the areawhere the works are to be executed must first be consulted.

No topsoil should be piled up on the weight. Topsoil must be directly loadedonto the trucks and directly unloaded on topsoil.

Truck traffic must be kept only on the weight. Entering of trucks with tyressaturated with topsoil will not be permitted on weighed access. This willprevent that topsoil mixes with weight.

During rainy season, entering deposits that show saturation will be avoided.

Topsoil spills on the weighed area must be immediately cleaned and returnedto the topsoil deposit.


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8.9 PROCEDURE TO CONTROL EROSION AND SEDIMENTS

OBJECTIVE

To establish environmental control standards for erosion and sediment controloperations. Sediment control (silt fence) may only try and minimize themagnitude of the problem, since accelerated erosion may be the result of sweptareas during construction.

SCOPE

This procedure governs all the works to be carried out to ensure erosion andsediment control using silt fence in the Project.

REFERENCES

Koerner R.B., 1998, Designing with Geosynthetics, 4th edition, Ed. Prentice

Hall.

Jewell, R.A., 1988, The Mechanics of Reinforced Embankments on soft soils,

Geotextiles and Geomembranes, Vol. Chemosphere, 7, pp. 237-273.

North American Geosynthetic Society, Erosion and Sedimentation Control

Workshop, Geosynthetics 2003, February 11-14, Atlanta Ga, USA.

DEFINITIONS

Silt Fence: Soil preservation curtains, barriers to prevent slurry or mud from

sliding.

RESPONSABILITIES

Workers

It is the workers' responsibility to inform the head office of any incident that

should happen within their work area, or any condition the may imply anenvironmental risk, so that an Accident or Incident may be prevented.

Procure information on the different activities to be developed to preserve the

environment.

Supervision

Responsible for defining the different tasks to be developed in the execution of

the works, instructing the workers on the proper way to carry out the same,thus diminishing to the minimum the Environmental Contamination Risk.

Instil in its subordinates respect for the Environment, and motivate them to

protect the same.

Verify compliance with all the Environmental Protection activities.

Collaborate in executing prevention procedures, to avoid environmental risks.

Security Supervisor

Follow up compliance with environmental activities and procedures.


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Determine, together with the Supervisor, the different tasks that represent a

Potential Environmental Contamination Risk.

DEVELOPMENT

Considerations before workThe considerations to be taken into account are the following:

The use hereof will be evaluated by the Chief of Operations, prior to

approving its use.

Fences or defences consist of curtains placed vertically on poles to prevent

the flow of sediments towards the rivers or drainage systems. This type ofconstruction has replaced the typical hey or straw bales. The bottom of the

fence is embedded in a small anchoring ditch. Inspect erosion and sediment control structures during rain that may cause

surface run-off, to take the immediate pertinent actions.

Personnel must attend the five minute lectures given by the area supervisor.

All personnel involved in the works must prepare the AST-Safe Work

Analysis (Anlisis Seguro de Trabajo) prior to commencing works.

They must have their appropriate EPP.

The supervisor will verify compliance with the provisions given by personnel.

Considerations during labour.The following conditions should be taken into account:

Consider the installation of silt fences on the land to control sediment in

specific and necessary areas.

Unloading and piling necessary material.

Ditch excavation for foundation.

Unloading material from transport units.

The personnel will place near the work zones and in a safe place, storage for

this material.

Excavation to fit the silt fence will be done manually, in topsoil material or

other non classified loose material; must be 0.20 m deep and 0.30 m wide.Special care should be given to properly placing the material next to theexcavated area to avoid its contamination or washing.

Silt fences will be installed fixing them in the ditch with the material coming

from the excavation, in 0.65 m free height lines, in accordance with thealignment and 0.30 m inside the excavation; fitting or fixing the silt fences isperformed with 1.20 m wooden steaks stuck to the ground 0.25 m, and with anapproximate spacing of 3.00 m.

Additional Considerations.

Rain erosion takes place for two main reasons: the impact of the drops andwater hauling that runs-off across the land surface.

The basic aspects of erosion are:


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Rain drops let loose soil particles and obstruct the surface. Water cannot

infiltrate through the sealed surface, and thus, water flow increases on the soil.

Vegetation or any other cover may reduce the drive and energy of the raindrops, and thus prevent surface sealing.

Erosion is a result of the impact of the rain and its flow across the surface

and other layers.


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8.10 NOISE CONTROL

Noise will be kept at levels pursuant to the prevailing legislation. In the case ofnoise produced by machinery, equipment, and tools, it will be kept as indicatedby the manufactures as standard.

When noise generated on the site by the operation of equipment or machineryexceeds the permissible limits, the following measures will be taken:

Use of silencers.

Enclosing the source of emission.

Use of other alternative equipment without prejudice to which, the

personnel exposed should wear suitable ear protection.

Personnel rotation, presuming that they generate more noise.

Limiting work schedule

Where personnel work directly or near noise generating equipment, and wherecontact is inevitable, suitable ear protection equipment will be provided to preventpossible harm to health caused thereby.

8.11 PLAGUE CONTROL

If plague control were necessary, for example rodent, flees, louse, and others,

special care should be given that elimination of plagues is restricted to the areaof the campsite, so that the lethal effect is not propagated to other species.

Quarterly fumigations will be carried out to the facilities in general, priorcoordination with personnel to vacate the rooms.

The material to be used in fumigations will be biodegradable, non toxic topersonnel.

8.12 FACILITIES FOR EQUIPMENT MAINTENANCE.

Vehicle, machinery, and equipment maintenance, in general, will be carried out

in specially designed facilities. These facilities will be closed and isolated fromthe exterior by means of concrete slabs. Will be kept clean and havemaintenance trenches with drainage channels and sediment pools for treatingcontaminated waters produced from washing the slabs.

Maintenance will be carried out as programmed as per type of machinery, byqualified personnel and under approved methodology by the person in chargeof Equipment in San Martin.

Soil contamination with liquid products, such as oils, fuel and other elements willbe avoided, and in the eventual case of contamination, the portion ofcontaminated soil will be extracted and transported to the dumps speciallyprovided for the purpose.

Oil will be changed in engines with special care to avoid spills. Oil waste will beput in metallic vessel containers.


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8.13 QUARRIES AND DEPOSITS.All such areas as previously defined and approved by client will be used forquarries; the method to be used to obtain the necessary admixtures forconstruction works will be proposed by the Project Manager, who will approveor modify the same, as deemed convenient.

Once the quarry exploitation is completed, all actions tending to ensure that thearea is maintained with the proper drainage to prevent water baking up, and atthe same time minimize the risk that the well walls are eroded, will be set intomotion.

The provisions set forth in Yanacocha's Environmental Impact Assessment willbe applied.

8.14 PROTECTION OF AIR

All personnel is prohibited, both own and subcontractors', from burningvegetables and other materials. Controlled burning will be carried out, withjustification, prior authorization by client.

Burning is prohibited, in addition, of any material that produces gasses and/orharmful particles, used oils, lubricants, etc.

In the case of gas emission from machinery, equipment, internal combustionengines, in general, and chimneys, the current legislation will be strictlyobserved, and preventive maintenance of the issuance source will be carried

out.

In order to prevent dust rising provoked by vehicle circulation in the areas of theworks, the road will be watered, depending on weather conditions, and the usegiven thereto.

8.15 WATERCOURSE SAFEGUARD

Contamination of rivers, marshes, reservoirs, lakes, ground waters will beavoided; dripping to the foregoing watercourses should be avoided, producedfrom washing or rinsing equipment, as well as any other waste coming from the

operations at the site.Interception and diversion of waters from their normal course for the executionof tasks inherent in the works, and facilities removal, in order to avoid theformation of new waterways. The new watercourses will solely be maintainedon client's demand, or as demanded by project specifications.

8.16 DUMPS.

All materials coming form excavations that are not suitable or necessary forfilling, or materials useful to the client will be taken to specially conditioned

places.


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The places to be used as dumps will be as previously authorized by client andwill preferable be natural and artificial depressions, which will be periodically

filled with soil, organizing the material in horizontal layers, until reaching thesurrounding ground level. Those places will be marked with steaks or flags.

None of the dumps, or part thereof, will be located in any watercourse.


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9. SUMMARY OF ENVIRONMENTAL CONSIDERATIONS DURING THE

CONSTRUCTION STAGE

Mobilization and demobilization.

Any equipment or plant (screens) may cause hydrocarbon spills.

Control:

Spill containment trays or systems will be available.

Carry absorbent rags to clean spills on land surfaces.

Absorbent sausages for spills on waterways.

Long distance mobilizations or beyond the mine must be escorted by units

equipped with sufficient material to clean possible environmental accidents,and with personnel to address contingencies.

Erosion and Sediment

Potential Impacts.

Surface run-off

Fluids concentrated in escape gutters and others.

Erosion of natural and disturbed soils. Erosion of mass in dumps.

Turbidity of rivers and gorges.

Environmental control of erosion and sediment:

In slopes.

Maintain similar slopes to the natural ones.

Do not obstruct natural drainage ways.

Cover slope with native or cultivated vegetation.

Design artificial drainage with decanting steps.

Platforms.

Crowning ditches along the whole perimeter.

Bleeding connected to exterior drainage discharging on sedimentors.

Storm water flow dams or disperser barriers.

Screwed on ditches and sedimentors' entrance - exit.

Undisturbed Areas.

Topsoil cleaning by stages.

Installation of erosion and sediment control elements.


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Topsoil transportation to dumps.

Temporary Accesses. Topsoil cleaning by stages.

Drainage along the access

Topsoil disposal in nearest dump.

Dump Maintenance

Control of erosion and sediment.

Isolation or preservation of unusable material or topsoil, avoiding its

contamination.

Topsoil Excavation. Excavation or cleaning by stages.

Temporary piling.

Care not to contaminate with unsuitable material.

Topsoil Transportation.

Disposal at existing dumps.

Isolation or protection of contaminant substances;

Rock Excavation and Transportation

Proper loading of equipment (do not overload). Precautions against Equipment Spills

Anti-dust Risks.

Ongoing road watering.

Avoiding Fuel Spills

Sediment cleaning

Promptly evacuate sediments to the dump specified for the purpose.

Should not exceed 50% of its capacity; once attained, personnel will

be assigned for the cleaning.

Installation of Surface Water Control Berms.

High enough berms to support surface water flow.

Drainage connected to the existing evacuation channels or

constructed for the purpose.

Sediment Control Structures in the Diversion Ditch.

Energy dispersing ditches or barriers along the ditch.

Rocked or Rip Rap along the entire ditch.

Maintenance of Sediment control devices.

Installation and Removal of Drains.

Control of erosion and sediment.


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Construction of drainage and sedimentors instead of the drain

removed.

Control of spills that may be caused by the equipment. The materials to be used must be free from any contaminants.

Opening and Exploitation of Quarries.

Exploitation plans and permits must be carried.

Proper Sediment Control.

Slope composition.

Drainage construction.


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10. ENVIRONMENTAL INSPECTION FORM

WEEKLY ENVIRONMENTAL INSPECTION

Report N:

Area Inspected:Date of inspection:

Participants:

Control PointsOK

RemarksDate ofAction

RespYes No

1. Diesel Tanks

Spills

Containment area needs cleaning

2. Oil and fuel drums

Spills

Containment area needs cleaning

3. Warehouse

Fuels and chemicals are stored onconcrete slabs

Area is clean and organized

Signs of vehicle spills

3. Water Treatment System

Oil separator needs cleaning

Sedimentation needs cleaning

4. 8.4 Vehicle washing slab

Area is clean and organized

Pipelines or escape gutters are blocked

5. Garbage

Separation system working

6. Information

Safety Sheets Published

Environmental Policy and other informationpublished

Workers are familiar with EnvironmentalPolicy and environmental aspects

7. Emergencies


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Absorbent material available in theworkshop

Procedure in case of spills is known by

workers

Inspection Prepared by: _________________________________________________

Position: _______________________________________________________________

Date: ________________________________________________________________

Documents

Camp Earthworks Pgma San Martin - Conga Rev01