General Guidance

These documents are technical reports by staff of the Central Valley Regional Water Board intended to provide assistance to the regulated community, other agencies and the public. No policy or regulation is either expressed or intended.

• The Designated Level Methodology for Waste Classification and Cleanup Level Determination October 1986, updated June 1989
  This staff report presents California's waste classification system from a water quality perspective, including the issue of "designated wastes." It also presents a method for determining whether a waste or a contaminated site poses a threat to water quality.


• Guidelines for Submittal of Information Developed from Models
  Information necessary to demonstrate the appropriateness and usage of the model so that the Board and the public can fully understand the modeling process and understand the strengths and weakness of the model output.
  
  

  For additional information for surface water applications, contact Jim Marshall at (916) 464-4772 or by email at James.Marshall@waterboards.ca.gov.

  For additional information for groundwater applications, contact Chris Flower at (916) 464-4836 or by email at Chris.Flower@waterboards.ca.gov.