Water: Module 5
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Education & TrainingTraining ProgramsWater Quality Standards AcademyModule 5Basic Course: Key Concepts (Module 5.h)
Education & TrainingTraining ProgramsWater Quality Standards AcademyModule 5Basic Course: Key Concepts (Module 5.h)Basic Course: Key Concepts (Module 5.h)
Site-Specific Criteria: When Allowed
Course Navigation
- Module 1: Overview
- Module 2: Use
- Module 3: Criteria
- Module 4: Antidegradation
- Module 5: Flexibilities
- Flexibility Mechanisms in Water Quality Protection
- CWA Goals
- Feasibility of Controls
- Feasibility Factors
- The Economic Factor
- Potential Parameters
- Addressing Local Conditions
- When Site-Specific Criteria Are Allowed
- Temporary Modification to Water Quality Standards
- When Variances Are Allowed
- Discharger Grace Period
- Summary
- Quiz
- Module 6: Review
- Certificate of Completion
Site-specific criteria can be used to address any one or more of the following situations. (Select the linked items listed below to view when site-specific criteria are allowed.)
Situation #1
The sensitivities of species at a site differ from those used to develop national water quality criteria.
Situation #2The physical/chemical characteristics of a site alter the bioavailability/toxicity of a pollutant.
Situation #3A State/Tribe wants to establish a criterion equal to “natural background” levels.
Learn More. Protocols/procedures for developing site-specific criteria. Proceed to the Learn More Topic. » (Note: This link launches a pop-up window.)
