Sites may become contaminated with toxic chemicals through illegal dumping or disposal, from leaking underground storage tanks, or through industrial or commercial activities.  These sites may pose a hazard to the public health & safety and the environment.  Therefore, the investigation and cleanup of these contaminated sites must be conducted under the supervision of the hazardous materials branch.  At a minimum, any investigative work shall require a work plan, site safety plan, application for site mitigation and work plan review and a fee.  Allow seven working days for processing.  Incomplete or unapproved submittals will be returned.  Approval of the work plan must be obtained before any work is started.  A letter of closure may be written by the Monterey County Environmental Health Bureau based on the findings of the investigation.

Guidelines for Mitigation

Investigation and clean-up of contaminated sites must be conducted according to the Guidelines for Site Mitigation, below.  The purpose of these guidelines is to provide a uniform procedure that can be followed to mitigate a contaminated site properly as quickly as possible.  The guidelines cover four phases of work that must be accomplished:

1. Preliminary site assessment
2. Soil and groundwater investigation
3. Corrective action implementation  
4. Verification of monitoring.

All submittals must be signed by a Registered Geologist or Certified Civil Engineer for Subsurface Investigations.

For additional information about also see, the Haz Mat Monitoring Wells and Soil Boring page

Forms and worksheets

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