Summary

Case submitted by: Mateboer Milieutechniek B.V.
Country: The Netherlands
Built-up site?: Yes
Soil type: Layered soil; clay/peat/sand
Follow-up required?: Yes, monitoring
Treated contamination: Mineral oil
Volatile aromats, inclusiding benzene (BTEX)
Naphthalene
Medium contamination: Soil/pure product and groundwater
Dimension contamination: 1000 m3
Remediation goal:
final concentration
BTEXN concentration: T-value
mineral oil concentration: T-value
Load removal: 93 %
Remediation goal achieved?: No, there is a stable end situation achieved with a minor contamination.
Initial and final concentration or load removal:
Active remediation phase: 17/12/01 until 14/07/04
Passive remediation phase: The passive phase is not yet completed. Expected realization period: 14/07/04 until 18/12/09
Added reports:

Case detailed information

General information
Project name: Kampen (IJsseldijk): Mineral oil, BTEX, naphthalene** Case submitted by: Mateboer Milieutechniek B.V. Contact: M.J. Zwietink Address: Postbus 10174 1301AD Telephone number: +31 (0)36-530 24 10 Email-address: m.zwietink@almere.mateboer.nl
Location
Country: The Netherlands City/region/county: Kampen (future) use of location: Industrial Built-up location during the active remediation phase?: Yes
Technique
Explanation technique: Also other remediation techniques applied?: Yes, prior to this project: excavation and groundwater extraction. After care needed?: Yes, monitoring Rationale for the chosen technique: Type of contamination, soil profile and presence of building.
Contamination
Treated contaminant(s): Mineral oil Volatile aromats, inclusiding benzene (BTEX) Naphthalene Contaminant phase: Soil/pure product and groundwater Size contamination: 1000 m3 Depth contamination: 6.5 m below surface
Soil
Soil type: Layered soil; clay/peat/sand Saturated/unsaturated zone?: Saturated zone Permeability: 0,01-0,1 m/day, based on soil survey report. Flow velocity or gradient groundwater: 2000 kD m2/day
Result, duration, expense
Remediation goal: final concentration BTEXN concentration: T-value mineral oil concentration: T-value Load removal: 93 % Remediation goal achieved?: No, there is a stable end situation achieved with a minor contamination. Initial and final concentration and load removal: Active remediation phase: 17/12/01 until 14/07/04 Passive remediation phase: The passive phase is not yet completed. Expected realization period: 14/07/04 until 18/12/09 Total costs passive/after care phase: Total costs active phase:
Stakeholders
Problem owner: Contractor: Mateboer Milieutechniek B.V. Remediation plan: Mateboer Milieutechniek B.V. Remediation research: Mateboer Milieutechniek B.V. Competent authority: Provincie Overijssel Contact information stake holders: Dhr. M.J. Zwietink (PL) +31 (0)36-530 24 10
Additional information
Lessons learned: The use of surfactant effects the remediation result in a positive way. However, when extracting the groundwater, the surfactant has a negative effect on the biology in the treatment facility, which can last long. Remarks:
Related techniques and HIP-pilots