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The response addresses the definition of PCBs.

Prior description and the definition is referenced to sources.

Prior description and the definition is created from multiple sources.

Prior description and the definition contains information specifically relevant to the Ramford River.

Sources of PCBs

The response addresses possible sources of PCBs.

Prior description and possible sources are cited and referenced.

Prior description and likely sources are cited based upon research on the Ramford River.

Prior description and likely sources are supported with evidence from sampling data.

Uses of PCBs

The response addresses possible (past) uses of PCBs.

Prior description and the response is supported with specific references.

Prior description and the response is based upon multiple sources.

Prior description and historical information relevant to the Ramford River is included.

Relative Concentrations of PCBs

The response addresses concentrations of PCBs in the Ramford River.

Prior description and the response is supported with specific references.

Prior description and the response is supported by sampling data.

Prior description and the response is accurate.

The response addresses the change in concentration of PCBs in the Ramford River over time.

Prior description and the response are supported with specific references.

Prior description, the response is based upon multiple sources, and is supported by Ramford River data.

Prior description and the responses are accurate.