Is the correct Water Quality Objective/Criterion indicated?
As stated above, the basis of each 303d listing is that the water body is not meeting an applicable Water Quality Objective/Criterion (WQO) for protection of that use. Typically the WQO is based on the California Toxics Rule (CTR) or a Basin Plan Objective. Verify that these numbers are correctly applied. The Listing Policy provides for some flexibility when evaluating narrative criteria, however the policy requires the selection of representative “Evaluation Guidelines” for interpretation of narrative water quality objectives for listing/de-listing purposes. Section 6.1.3 of the Listing Policy contains the provisions for selecting an appropriate Evaluation Guideline. Acceptable guidelines for evaluating sediment quality, fish tissue levels, and other parameters are described in this section of the policy. 4. Were all data sets submitted included in the analysis? The fact sheet for the listing will indicate the Data Used To Assess Water Quality. Are all samples submitted by your agency
