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Incident assessment report for confidential underwriting use only
REMEDIATION REPORT –Sanitech - UNITRANS – 55m³ soil – Usakos NAMIBIA 3 Phase 26 June 2019 1 | P a g e
UNITRANS REMEDIATION REPORT – PHASE 3 Supervised and prepared by Sanitech Namibia:
55m³ contaminated soil from Omaruru as a result of a burnout truck, contained at Usakos
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Incident assessment report for confidential underwriting use only
REMEDIATION REPORT –Sanitech - UNITRANS – 55m³ soil – Usakos NAMIBIA 3 Phase 26 June 2019 2 | P a g e
INCIDENT INFORMATION ______________________________________
REPORT ON : Remediation (2nd Phase) of 55m³ petrol contaminated soil
HAZARD CLASS AND RISKS : CLASS 3 – FLAMMABLE GASSES - PETROL
TRANSPORTER : UNITRANS NAMIBIA
DATE OF PHASE 2 : 26 June 2019
LOCATION : Private residential open erf in Usakos, NAMIBIA
DATES OF PHASE 4 REMEDIATION : ESTIMATION 07 August 2019
MAIN CONTRACTORS ON-SITE : Sanitech Namibia
3RD PARTY ISSUES : Private owner gave permission to remediate soil on erf
INTRODUCTION
In accordance with the RAP (attached), instruction received from Unitrans (Mr. Lazarus), we confirm that
Sanitech attended to the Phase 3 remediation of the soil related to the truck burnout at Omaruru.
Sanitech was appointed to conduct the full remediation of the contaminated soil recovered from the
original site.
Mr Coetzee from Sanitech responded to the initial call out and was requested to first quote for total clean-
up, sampling and remediation of the site. The quotation was accepted by Unitrans and the remedial
process started. A total of 5 samples were taken at Omaruru on the first visit at 50cm in depth at various
points indicated by Mr Coetzee and couriered to GEOLab SA. Results showed that remediation is
compulsory according to the set standards. The soil was excavated, placed in a biopile and treated with
bio remediating agents.
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Incident assessment report for confidential underwriting use only
REMEDIATION REPORT –Sanitech - UNITRANS – 55m³ soil – Usakos NAMIBIA 3 Phase 26 June 2019 3 | P a g e
BACKGROUND ON BIO REMEDIATION AT USAKOS
Product information:
Petrol is an environmental hazardous substance that can have a toxic and harmful effect and should be
cleaned up in-line with the Namibian Environmental Legislation.
All risks were identified by the contractor and mitigation measures were implemented to reduce and
eliminate all risks. All the workers on site were issued with the correct PPE and they were informed of the
risks and the mitigation measures. The site was barricaded off during the remediation process.
DESCRIPTION OF THE SITE AND WORK PERFORMED
Mr Coetzee attended the site on the 26 June 2019 for the 2nd remediation process, to treat the
contaminated soil placed on plastic sheeting for treatment in a biopile. Samples were taken at 3 points
at the core of the pile of 30m. Samples were numbered – N1 (north sample 1), C2 (cente sample 2) and
S3 (south sample 3) with date and Unitrans.
The biopile was covered with pvc sheeting which had remained intact for the whole period, since Phase 2
was completed six weeks ago .
The soil inside the biopile was turned using heavy duty equipment and man power. The biopile was
drenched with water, mixed thoroughly to airated all areas, covered with pvc sheeting again to prevent
water evaporation and allow bacterial activity.
Human activity
The immediate area of the site has no active human activity.
Action taken
• An inspection of the area was conducted – In order
• The bio pile was opened and inspected – soil was still slightly wet with no petrochemical odours
• The soil in the bio pile was mixed thoroughly – aerated properly
• Water was added through the whole mixing period
• The bio pile was covered
• The site was secured and waste was disposed
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Incident assessment report for confidential underwriting use only
REMEDIATION REPORT –Sanitech - UNITRANS – 55m³ soil – Usakos NAMIBIA 3 Phase 26 June 2019 4 | P a g e
CONCLUSION
• We trust that the above meets with your immediate requirements in this matter. Should you
have any queries or require any further information in this regard, please do not hesitate to
contact this office.
• This report must be read in conjunction with the remediation action plan (RAP) previously send
and accepted by the client.
• The phase 3 remediation process was completed.
• Periodic site visits will be conducted and watered as needed.
• Further soil samples will be taken on the next site visit after results of official analysis.
SITE PHOTO’S OF PHASE 3 – 26 June 2019
Open Biopile Took samples
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Incident assessment report for confidential underwriting use only
REMEDIATION REPORT –Sanitech - UNITRANS – 55m³ soil – Usakos NAMIBIA 3 Phase 26 June 2019 5 | P a g e
Turn soil with TLB
Turn & mix well with water
Turning soil manualy and mix well - Aerated
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Incident assessment report for confidential underwriting use only
REMEDIATION REPORT –Sanitech - UNITRANS – 55m³ soil – Usakos NAMIBIA 3 Phase 26 June 2019 6 | P a g e
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Incident assessment report for confidential underwriting use only
REMEDIATION REPORT –Sanitech - UNITRANS – 55m³ soil – Usakos NAMIBIA 3 Phase 26 June 2019 7 | P a g e
More operational actions and samples
Final close up, to be inspected after 6 weeks ISSUED WITHOUT PREJUDICE AND DATED THE: 26 June 2019 at Walvis Bay
Disclaimer:
Please note:
This report has been prepared by Sanitech, with all reasonable skills, care and diligence within the terms
of the contract of this client and the report remains the property of the client and is strictly private and
confidential. The report is intended for internal use only and may not be used, or disclosed to anyone
without the permission of Sanitech. Sanitech cannot be held responsible for any changes made to the
report after it has been issued. It should be noted that the report is based on the incident at the time of
survey, Sanitech cannot be held responsible for any changes which have incurred after such date and
time. Sanitech or the client cannot be held responsible for any errors or omissions that may occur or not
be disclosed at the time of survey.
Contractor: Jannie Coetzee 0811242447 [email protected]