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1516PERFORMANCE REPORT The Water Boards...

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The California Water Boards' Annual Performance Report - Fiscal Year  2015-16 

CLEAN UP: GROUNDWATER

GROUP: SITE CLEANUP PROGRAM
MEASURE: NUMBER AND PERCENTAGE OF CASES WHERE GROUNDWATER CONTAMINANT MIGRATION IS CONTROLLED
MESSAGE:  
KEY STATISTICS FOR FY  2015-16 

 

MEASUREMENTS  - Data last updated on: 

Region Total Number of Cases (Active and Inactive) Cases Where Groundwater Contaminant Migration IS Controlled Cases Where Groundwater Contaminant Migration IS NOT Controlled Cases Pending Deter-mination Percent of Cases Where Migration is Controlled
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WHAT THE MEASURE IS SHOWING

WHY THIS MEASURE IS IMPORTANT

TECHNICAL CONSIDERATIONS

  • Data source: GEOTRACKER. Period July 1, 2015 to June 30, 2016.
  • Unit of Measure: Number of cases where groundwater contaminant migration is controlled.
  • Data Definitions: Active Cases: The number of cases overseen by Regional Boards that had an Open status as of June 30, 2016. Inactive Cases: Include cases where there is no funding or resources available to work on the case. Cases Where Groundwater Contamination Is Controlled: groundwater contaminant migration is under control either because the source of the contamination has been identified, the extent and magnitude of soil and groundwater contamination is defined and remedial activities are controlling further migration of the identified pollutant. It also includes those cases for which groundwater contaminant migration is not applicable. Cases Where Groundwater Contamination Is Not Controlled: An unacceptable migration of pollutants to surface water or groundwater or future risk to other sensitive receptors is determined to be present. Cases Pending Determination: Include cases for which there is insufficient data to determine that groundwater contaminant migration is controlled and those cases for which no data has been entered in the databases.
  • References:
    The Water Boards' Leaking Underground Storage Tank Cleanup Program,
    Brownfields,
    Public Reports and Data

GLOSSARY:

Site Cleanup
The Site Cleanup program addresses commercial, industrial and other non-military sites with non-fuel contamination. Many of these sites are considered Brownfields because of their reuse potential. These sites are regulated under Site Cleanup Requirements, which are issued by the Regional Water Boards. Site Cleanup Requirements generally mandate a time schedule for specific tasks that must be performed by the responsible party(ies) to investigate and clean up the site. Water Board staff oversee implementation of these tasks including investigations, corrective actions, and human health risk assessments at sites with current or historic unauthorized discharges, which have adversely affected or threaten to adversely affect waters of the state.

Procedures for site investigation and remediation are promulgated in State Water Resources Control Board Resolution No. 92-49 entitled Policies and Procedures For Investigation and Cleanup and Abatement of Discharges Under Water Code Section 13304. Responsible parties conduct work in a stepwise fashion, starting with preliminary assessment, then soil and water investigation; interim remedial measures if warranted; risk assessment; setting cleanup goals; cleanup plan; cleanup implementation and monitoring. Most often, responsible parties conduct the work voluntarily, but sometimes enforcement orders are necessary to compel the work to be performed.

Number of cleanup cases with human health exposure controlled
Means a count of all open Water Board-lead cases and Shared-lead cases where human health exposure has been evaluated as of the end of the Fiscal Year.

Active Remediation
Active remediation comprises the phase(s) of work where the actual construction or implementation of activities to accomplish cleanup at a site occurs.

Case Closure
A site cleanup qualifies to receive a "No Further Action" (closure) letter once the owner or operator meets all appropriate corrective action requirements. After this occurs, the county agency or regional board will inform the responsible party in writing that no further work is required.

Number of cleanup cases groundwater contaminant migration under control
Means a count of all open Water Board-lead cases and Shared-lead cases where groundwater contaminant migration has been evaluated as of the end of the Fiscal Year.

( Updated:  10/11/16 )

 
 

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