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Site Information Needed for Oversight Agency Selection

Site information is intended to help determine the appropriate lead agency and to focus future investigation and cleanup activities, if needed. The most helpful site information is that which identifies the primary sources of hazardous material releases or discharges as well as exposure pathways of concern in order to determine the predominant risk - whether to public health or to groundwater or both. The site information may include existing information and documents normally used during the property transfer and redevelopment process, such as ASTM Phase 1 and Phase II reports, other “due diligence” reports, and elements of DTSC’s Preliminary Endangerment Assessment. The applicant may submit all or part of these documents in addition to any other relevant environmental information and data with the attached application form.

If the information provided with a Request for Oversight for a Brownfield Site is not sufficient to determine the oversight agency, additional information may be requested.

The following are descriptions of the types of site information that are beneficial in determining the appropriate lead agency:

Regulatory Activity or History: Specific historic or current regulatory status with DTSC and Water Boards including types of regulatory enforcement actions, orders or agreements or other relevant information including whether listed on the following databases: RCRA, U.S. EPA CERCLIS or RCRIS, DTSC HWMP or CalSites, and/or SWRCB Geotracker or LUFT sites. Include any historic and current regulatory status with the appropriate county or city.

Project description: A general description of the nature of the project, including development or redevelopment plans for the site, and the reason for requesting oversight of the assessment or cleanup of the site.

The project description should also indicate if the site or applicant has been the recipient of any grants, loans or other incentives, or whether the site is part of any particular pilot project or study, an element of any smart growth initiative or project, or the recipient of LUST funds.

Site History: A history of the site including general dates of current or historic activities, previous owners and operators, types of activities, chemicals used at the site, any permits that may have been issued regarding activities at the site, and the type of activity that is believed to have resulted in a release or potential release of hazardous materials. The history should identify the following:

  • The type of releases or spills, sources of release and contaminants of concern, including the approximate date and the estimated quantity of each release or spill;
  • The primary human or environmental resources of concern; and
  • A description of likely exposure pathways.

Site Data: A summary of available site data, including:

  • An assessment of the leachable and total concentrations of constituents of concern in soil, soil gas, and groundwater, site hydrogeology including area lithology and associated site boring logs, graphics that plot sample results and other data.
  • A comparison of the site data (including background values) with available screening levels (including CalEPA’s California Human Health Screening Levels (CHHSLs), USEPA Region IX’s Preliminary Remediation Goals (PRGs), San Francisco Regional Board’s Environmental Screening Levels (ESLs) or other) for soil and groundwater, and identification of any data gaps or additional suspected exposure pathways.
  • Current Activity: The name of current business and/or land use activity at the present location. A description of the current site operations/activities, current owners and operators, types of activity, chemicals being used at the site, any permits that may have been issued regarding the activities at the site, and the activity that is believed to have resulted in a release or potential release of hazardous materials. Provide information on the nature of the current site conditions including sources of contamination that constitute the primary reasons for assessment or remediation of the site.

Current Zoning/ Land Use: A description of the current zoning or land use designation for the site.

Proposed Future Land Use: A general description of the approved or planned future land use for the site, such as multi-family residential, commercial, mixed land use, wetland restoration, or recreational open space, and whether this future land use is consistent with the existing zoning or land use designation, or whether the proposed future use would require rezoning or change to the site’s use designation. Provide any contact names of local public entities, such as a redevelopment agency or local health department, associated with this project.

Also include information about the redevelopment plans for this project and the relationship of this site with other contaminated sites or redevelopment projects in the area.

Water Use: Information about the manner of water supply at the property and municipal, domestic, agricultural, or industrial wells on the property and within a 1-mile radius of the project area.

Site Maps and Photographs: A site location map (to scale) that identifies the site in relation to surface waters, sensitive land uses, sensitive habitats, highways or other landmarks, and depict sampling locations and other relevant site features.

Assessment of community awareness/concern: Information about any past or ongoing local agency public outreach activities and community interest in the project. For instance, information regarding the community's knowledge of the site, the types of community concerns, media interest or likelihood of interest, and involvement of any community groups.

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Last updated: March 04, 2005
Brownfields Program, http://www.calepa.ca.gov/Brownfields/
General Public Contact, cepacomm@calepa.ca.gov (916) 323-2514