Summary

Case submitted by: Mateboer Milieutechniek B.V.
Country: The Netherlands
Built-up site?: Yes
Soil type: Mainly sand
Follow-up required?: Yes, monitoring
Treated contamination: Chlorinated Volatile Organic Compounds (CVOC)
Medium contamination: Soil/pure product and groundwater
Dimension contamination: 7200 m3
Remediation goal:
Load removal : 99,6%
This remediation site is also a pilot location.
Remediation goal achieved?: Yes
Initial and final concentration or load removal:
CVOC Contamination total initial load: 340kg; total final load: 1 kg
Active remediation phase: 01/05/02 until 01/11/05
Passive remediation phase:
Added reports:
bijlage case baanstraat utrecht.pdf

In-situ remediation technique:

Case detailed information

General information
Project name: Utrecht Baanstraat; CVOC** Case submitted by: Mateboer Milieutechniek B.V. Contact: M.J. Zwietink Address: Postbus 10174 1301AD Telephone number: +31 (0)36-51266422 Email-address: m.zwietink@almere.mateboer.nl
Location
Country: The Netherlands City/region/county: Utrecht (future) use of location: Residential area Built-up location during the active remediation phase?: Yes
Technique
In situ saneringstechniek:
Explanation technique: C-Sparge Ozon Also other remediation techniques applied?: Yes, soil vapor extraction and groundwater extraction After care needed?: Yes, monitoring Rationale for the chosen technique: Type of contamination, soil type and presence of building.
Contamination
Treated contaminant(s): Chlorinated Volatile Organic Compounds (CVOC) Contaminant phase: Soil/pure product and groundwater Size contamination: 7200 m3 Depth contamination: 15 m below surface
Soil
Soil type: Mainly sand Saturated/unsaturated zone?: Saturated zone Permeability: > 0,1 m/day, based on report of 'nader bodemonderzoek' Flow velocity or gradient groundwater: 2000 kD m2/day
Result, duration, expense
Remediation goal: Load removal : 99,6% This remediation site is also a pilot location. Remediation goal achieved?: Yes Initial and final concentration and load removal: CVOC Contamination total initial load: 340kg; total final load: 1 kg Active remediation phase: 01/05/02 until 01/11/05 Passive remediation phase: Total costs passive/after care phase: Total costs active phase:
Stakeholders
Problem owner: Contractor: Mateboer Milieutechniek Remediation plan: Tauw B.V. Remediation research: Tauw B.V. Competent authority: Gemeente Utrecht Contact information stake holders: Dhr. M.J. Zwietink (PL) 036-5302410
Additional information
Lessons learned: The combination of the mobilizing effect of C-Sparge and proper location of the groundwater extraction enables very high load removal in short time period. Remarks:
Related techniques and HIP-pilots