CP15 Soil and Groundwater Contamination(1)

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USE Control Procedure

SOIL AND GROUNDWATER CONTAMINATION

(HSE-CP15)

Version No. 1 rev. 00 Date: May 2005




HSE Control Procedure

AUTHORISED FOR ISSUE BY HSE MANAGER

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DOCUMENT AUTHORISATIONDocument Owner Document Review

HSE Manager

TAKREER

Abu Dhabi

AGM (Technical)

TAKREER

Abu Dhabi

Document Approval

General Manager

TAKREER

Abu Dhabi

Signature Signature Signature

The following is a summary of the most recent revisions to this HS E Man ageme nt S ystem (H S E MS )

Control P rocedure. The Document Owner holds details of all revisions prior to this version.

Version No. Issue Date Effective Date Scope/Remarks

Version 1 May 2005 To be announced* Original.

User Notes

This do cument is available for use and is accessible to all T AK R E E R employees and contractors .

The requirements of this document are mandatory. Non-compli ance shall only be author ised by

AGM(T) through a STEP-OUT approval (see HSE MS Manual).

A controlled copy of the current vers ion of this document is available from the T AK R E E R Intranet.

Before making reference to this document, it is the user's responsibility to ensure that the hard copy,

or electronic copy, is current. For assistance contact the Document Owner.

* This version of the HSE MS Control Procedure is issued for the purpose of training and familiarisation. An effective date forthis HSE MS Control Procedure will be announced.

Version No. 1 rev. 00 Page i Date: May 2005



R3E-CP15

SOIL AND GROUNDWATER CONTAMINATIONTAKREER

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1 PURPOSE

This P roce dure descri bes TAK R E E R 's min imum requirements for managing soil and groundwater

contamination.

2 SCOPE

This P rocedure shall be applicable to all TAK RE ER sites. TAK RE ER is not liable for soil and

groundwater contamination at contractor sites. However, contractors will be encouraged to adopt

compatible procedures.

3 DEFINITIONS

BPEO Best Practicable Environmental Option. Equivalent to A L A R P in P ollutionP revention and Control. The outcome of a systematic consultative and decision

making process which emphasises the protection and conservation of the

environment across land, air and water. BP E O establishes for a given set of

objectives, the option that provides the most benefits or the least damage to the

environment, as a whole, at acceptable cost, in the iong term as well as in the

short term.

BA T Best Available Techniques . Equivalent to ALARP in Pollution, Prevention and

Control. BAT minimises the pollution that may be caused to the environment

taken as a whole, using best available techniques and having regard to BPEO

4 BACKGROUND This P rocedure covers the identification, monitoring and remediation of soil and groundwater

contamination at TA K R E E R facilities.

5 RESPONSIBILITIES

5.1 AGM(T)

AGM(T) is responsible for the initial identification and assessment of soil and groundwater

contamination at existing operations through the HS E IA process (H5E -C P 26 Health, Safety and

Environmental Impact Assessment CHSEIA)).

He is

also responsible for

ensuring that contaminated sites are

restored as

near as

possible to

theiroriginal condition after ciosure.

5.2 Division Managers

Division Managers shall ensure that all sources of ground contamination are prevented or, where this

is not practical, minimised, in accordance with P P C objectives

Division Managers are responsible for ensuring that soil and groundwater contamination in their area

of responsibility (including contractor activities systems) is managed in accordance with the

requirements of this P rocedure .

Division Managers shall ensure that competent personnel are employed to manage soil and

groundwater contamination. Sufficient budgets shall be available to manage soil and groundwater

contamination to an acceptable or AL AR P level.

Version No. 1 rev. 00 Page 1 Date: May 2005



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In the event that circ umstances prevent compliance with this P rocedure, Divis ion Managers shall seek

the advice and if necessary, a 'Step-out Approval' from the Document Authority.

5.3 Corporate HSE Manager

The Corporate HS E Manager shall provide suitably qualified HS E Engineers in order to provide

guidance and assistance to the refineries on an as needs basis.

Corporate HS E Department is responsible for ensuring that the requirements of this P rocedure are

reflected in the documents for which they are responsible.

5.4 Safety Environmental and Fire Manager

The S E F Manager at each refinery shall have overall responsibility for the management of soil and

groundwater contamination, including sources of contamination identified through the HS E IA process.

He shall ensure that risk assessments include soil and groundwater contamination issues and thatrecommendations arising from risk assessments and are implemented.

Individual control measures identified, e.g., the repair of leaking tanks or changes of procedures to

reduce contamination, may be the responsibility of other Department Managers, e.g., Operations or

Maintenance.

S E F M anager shall ensure that soil and groundwater contamination that has been identified is

• S ampled and analysed as appropriate.

• Quanti fied (either by direct measurement or using appropriate methods of estimation).

• Recorded, as appropriate.

• Reported, as appropriate.

The S E F Manager shall ensure that all workers and on-site contractors have received, as part of

induction or other training, information regarding the need to avoid contaminating soil and

groundwater, e.g., by spillages of oil or chemicals.

5.5 Contractors

Contractors are responsible for ensuring that soil; and groundwater is not affected as a result of their

activities, and that it is managed in accordance with the requirements of this P rocedure. Any

contamination or potential contamination at Takreer sites should be reported to the contract holder.

6 METHOD

6.1 Site Report

In accordance with ADNOC CO P on P ollution Prevention and Control fCOP V2-02), a Site Report to

establish the baseline soil and groundwater conditions shall be prepared. This will be undertaken as

part of the HS E IA process (HS E -C P 26 Health, Safety and Environmental Impact Ass es sment

(HSEIA)). For existing sites, responsibility is with AGM(T) and for new sites with Manager P CD.

The Site Report shall identify any substance in, on or under the land which may be a pollution risk. It

must aiso record any pollution incidents, such as spillages, that may have occurred at the site and

details of measures put in place to mitigate their effects.

Appendix A provides a iist of contaminants that shall be used as the basis for the Site Report.

In preparing the site report particular attention shall be given to assessing and monitoring analytical

performance. Methods include the use of:




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• F ieid and trip blanks - these shall be prepared and analysed to check on possible

contamination, losses or deterioration of samples.

• S piked s amples - these shall check the accuracy of methods and procedures. This is more

readily carried out with homogeneous matrices s uch as water rather than heterogeneous soil

samples.

• Dupl icate samples - these shall be sent to two or more laboratories to check consi stency.

A DN OC has not published soii and groundwater quality standards applicable to T AK R E E R facilities.

The soil and groundwater quality standards {Dutch Intervention L evels) that shal l be used by

T AK R E E R are provided in Appendix A.

6.2 Risk Assessment

To ensure ongoing man ageme nt of soil and groundwater contamination risks, risk ass es sments

carried out according to CP-25 HS E Risk Assessment shall include consideration of soil andgroundwater contamination:

Risk assessments should:

• Identify known historical practices which may have lead to soil and groundwater

contamination

• Identify potential current sources of soil and groundwater contamination. These could include

(but are not limited to)

о spillages of crude oil, products and chemicals

о Leaking above ground or underground storage tanks

о Leaking chemical drums

о Leaching from waste storage or treatment areas

о Leaking drainage sys tems

о Plant and operations situated on unsealed sites

о Liquid discharges to the desert. It should be noted that ADNOC does not permit

discharge of mineral oils and hydrocarbons to groundwater. Full details of restrictions

on discharges to groundwater are given in COP V2- 02 P ollution P revention and

Control, and C OP V2-01 Environmental Impact As sess ment.

• Dec ide what might be harmed, and how. This could include, for instance, contamination of

potable water aquifers or migration of contaminants to the marine environment with resultant

harm to sea life.

• E valuate the risks associated with soil and groundwater contamination and dec ide whether

existing control measures, monitoring programmes and remedial measures are adequate or

whether more precautions should be taken.

The need for remedial measures should be considered against the intended use of the land or

groundwater and what harm has been caused. R emediation should only be undertaken after a Tier 2

Environmental Risk Assessment has been carried out (see HSE -CP25 HSE Risk Assessment). Any

remedial measures undertaken shall be the responsibility of SEF Manager. In carrying out site

remediation/restoration, the following approaches s hould be considered.

• Removing , treating or immobilising any pollutants.

• R emedying any harm the pollutants have caused.

• Mitigating the effects of any harm.




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6.3 Site Closure

On closure of the facility, the AG M(T ) shall be respons ible for the preparation of a clos ure Si te Report

for compar is on with the baseline S ite Report (Section 6.2). Th is will form part of the P has e 4 H S E IA

Report.

AG M(T ) shall ens ure that the site is res tored as far as practicable to its original condition, taking into

consideration the intended future use of the site and an ass es sment of the environmental risks .

6.4 Reports and Records

Full records shall be kept and maintained for all risk assessments performed and shall also include a

record of their review and update.

Other R eports and Records which must be maintained are:

• S ite R eport

• C losure S ite Report

• Re ports of monitoring and remediation programmes

• R ecords of oil and chemical spills and other possible causes of soil and groundwater

contamination.

6.5 Performance Monitoring

Reporting of any incidents which could cause soil and groundwater contamination should be carried

out according to HS E -C P 30 HSE P erformance and Reporting.

7 PERFORMANCE MEASURES

C ompl iance with this procedure shall be assess ed by:

• C ompliance with requirements to produce site report and closing site report

• Numbe r of risk ass essments which consider soil and groundwater contamination

Version No. 1 rev. 00 Page 4 Date; May 2005



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8 CROSS REFERENCES

ADNOC HSE MS Requirements ADNOC HSE MS Guidelines

ADNOC HSE Risk Management Guidelines

ADN OC Guidelines on Usable Ground Water P rotection

Element 4: HS E R isk Evaluation and Manage ment

E lement 6: Implementation and Monitoring

ADNOC Codes of Practice ; C OP V2-02: Pollution P revention and Control

COPV2-01: Environmental Impact Assessment

T AK R E E R P oiicies TAKR E E R Business and HS E Policy

TAK R E E R HS E P rocedures HSE-CP11: Prohibited Substances

HS E -C P 14: Releas es to Controlled Water, Sewer and L and

TAK R E E R HS E P rocedures

HS E -C P 27; Incident Handling and investigation

Other Requirements ISO 5667 Guidance on Sampling of Groundwater






—T A K R E E R

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Appendix A

Soil & Groundwater

Quality Standards

(Dutch intervention Values)


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USE Control Procedure

1 C ontaminantSoil Sediment

{mg/kg dry weight)

Groundwater

(MS/I)

Metals Optimum Action Optimum Action

Arsenic 29 55 10 60

Barium: 200 625 50 625

: Cadmium 0.8 12 0.4 6

Chromium :;?|;|:: 100 380 1 30

Cobalt 20 240 20 100

Copper. 36 190 15 75

Lead 85 530 15 75

Molybdenum 10 200 5 300

: Nickel . 35 210 15 75

Mercury . 0.3 10 0.05 0.3

Zinc 140 720 65 800

Cyanides Optimum Action Optimum Action

t Free 1 20 5 1500

Complex (pH<5) f 1 ) 5 650 10 1500

Complex (pH>5) ( 1 } v 5 50 10 1500

Thiocyanate- -

20 1500

Aromatics Optimum Action Optimum Action

Benzene ./" 0.05[d] 2 0.2 30

Ethylbenzene 0.05[d] 50 0.2 150

Phenol:; 0.05[d] 40 0.2 2000

Toluene 0.05[d] 130 0.2 2000

:; Xylene 0.05[d] 25 0.2 70

Cresol - 5[d] - 200

Catechin - 20 - 1250

Resorein - 10 - 600

Hydroquinone - 10 800

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1 ContaminantSoil Sediment Groundwater

1 Contaminant(mg/kg dry weight) (мая)

Polycyciic Aromatic

Hydrocarbons (PAH)

Optimum Action Optimum Action

Anthracene - - 0.02 5

Benzd(a)pyrene | - - 0.001 0.5

Fluoroanthrene • - 0.005 1

Naphtaiene - 0.1 70

Phenanthrene - 0.03 5

Benzo(a)anthracene - - 0.003 0.05

Benzo(a)fluoranthrene :- 0.003 0.5

Benzo(k)fluoranthrene , - -

0.001 0.05

Benzo(g,h,i)perylene - - 0.0002 0.05

: tndeno!(1,2,3-c.d)pyrene :i - 0,0004 0.05

Total P AH ; 2 : {' c ; 1 40 - -

Chlorinated

Hydrocarbons

Optimum Action Optimum Action

1,2 Dichloroethane V/ :.:J - 4 0.01 [d] 400

Dichloromethane [d] 20 0.01 [de] 1000

Tetrachloromethane i\ 0.001 1 0.01 [d] 10

Tetrachioroethane : : 0.01 4 0.01 [d] 40

Trichiorom ethane 0.001 10 0.01[d] 400

" Trichloroethene 0.001 60 0.01 [d] 500

Vinylchloride - 0.1 - 0.7

Monochloro benzene И - 0.01 [d] 180

Dichlorobenzol (total) 0.01 - 0.01 [d] 50

Trichlorobenzo! (total) 0.01 - 0.01[d] 10

TetrachIorobenzol (total) 0.01 - 0.01[d] 2.5

Pentachlorobenzene 0.0035 - 0.01[d] 1

Hexachlorobenzene 0.0025 - 0.01[d] 0.5

Chlorobenzenes { З И 1 0 > :- 30 - -

Mohochlorophendl Ш Ш - 0.0025 - 0.25 100

Dichlorophenol 0.003 - 0.08 30

• Trichlorophenol 0.001 - 0.025 10

Tetrachiorophenol 0.001 - 0.01 10

Pentachiorophenol 0.002 5 0.02 3

Chlorophenols (total)( 4 ) ( 1 0 ) • - 10 - -

Chioronapthylene - 10 - 6




HSE-CP15 T A K i ^ #

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1 C ontaminantSoil Sedi ment

(mg/kg dry weight)

Groundwater

(нал)

PolyChloroBiphenyls (total) (5 ) 0.02 1 0.01 0.01 [d]

Pesticides Optimum Action Optimum Action

DDT/DDD/DDE (total) (6 ) 0.0025 4 [d] 0.01

Aldrin 0.0025 - [d]

Dieldrin 0.0005 - 0.02ng/i -

Endrin 0.01 fd] - -

Drins (total) - 4 - 0.1

alpha HCH 0.0025-

id]-

Beta HCH 0.01 - [d] -

Gamma HC H 0.05 ug/l - 0.2 ng/l -

HCH combined ( 7 )- 2 - 1

Carbaryl - 5 0.01 [d] 0.1

Carbofuran - 2 0.01[d] 0.1

Maneb - 35 M 0.1

Atrazin 0.05 pg/l 6 0.0075 150

Miscellaneous Optimum Action Optimum Action

Tetrahydrofuran 0.1 0.4 0.5 1

Pyridine 0.1 1 0.5 3

Tetra h yd roth i op h e n e 0.1 90 0.5 30

Cyclohexanone 0.1 270 0.5 15000

Styrene 0.1 100 0.5 300

Mineral O i l ( 9 ) 50 5000 50 600

Phthalates (total) 0.1 60 0.5 5

Values are for a Standard Dutch Soil (10% organic matter and 25% dry content)

[d] = Detection Limit.

1. Acidity: pH (0.01 M CaCI2) The 90 percentile of the measured value is used to determine the pH value.

2. PAH (total of 10) is the total of Anthracene, Benzo(a)anthracene, Benzo(a)fluoranthrene,

Benzo(g,h,i)perylene, Benzo(k)fluoranthrene, Chrysene, Fluoroanthrene, lndenol(1,2,3-c,d)pyrene,

Naphtaiene, Phenanthrene.

3. Chlorobenzenes are the total of all chlorobenzenes (mono-, di-, tri- ,tetra-, penta- and hexachlorobenzene).

4. Chlorophenols are the total of all chiorophenols (mono-, di-, tri-, tetra-, pentachlorohenols).

5. The action value for PCBs (Polychlorinatedbiphenyls) is the total of PCBs 28,52,101, 118, 153, 180. The

target value refers to the total excluding PCB 118.

6. DDT /DDD/DDE is the total of DDT, DDD, DDE .

7. Drins is the total of Aidrin + Dieldrin + Endrin.




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8. HCH combined is the total of alpha, beta, gamma and delta HC H.

9. Mineral Oil is the sum of all alkanes (both straight and branch-chain) When contamination is due to mixtures

(e.g. petrol or heating oil), then the content of aromatic and/or polycyclic aromatic hydrocarbons must also bedetermined.

10. The total values for PAHs, chlorophenols and chlorobenzenes in the soil/sediment apply to the total

concentration of the compound belonging to the relevant category. If contamination is due to only onecompound of a category, the value used is the intervention value of that compound. Where there are two ormore compounds the value for the total of these compounds applies. For soil/sediment the effects are

directly additive. In the case of groundwater effects are indirect and are expresses as a fraction of theindividual values before being summed.


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CP15 Soil and Groundwater Contamination(1)

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