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Continuous Water-Quality Monitoring

Continuous Water-Quality Monitoring. Continuous Water Quality Monitoring. Advantages . Disadvantages. Equipment costs are greater Operation and maintenance costs are greater Vulnerable to damage and/or loss. Needed in rapidly changing systems

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Continuous Water-Quality Monitoring

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  1. Continuous Water-Quality Monitoring

  2. Continuous Water Quality Monitoring Advantages Disadvantages Equipment costs are greater Operation and maintenance costs are greater Vulnerable to damage and/or loss • Needed in rapidly changing systems • Provides better understanding of interaction between constituents • Provides better understanding of transport processes

  3. Relations Between ParametersDO and pH • DO and pH track together • Diurnal Pattern • Why?

  4. Relations Between ParametersDO and Temperature • Super-saturated DO • DO crash in June • Variation in DO changes seasonally

  5. Relations Between ParametersTurbidity –vs- Discharge

  6. Discrete vs Continuous Monitoring

  7. Other Surrogate Possibilities • Relations are developed using discrete samples and linear regression • Regression model used to synthesize continuous record of target parameters that are difficult to monitor. • Parameter -vs- surrogate relations are not universal but site specific

  8. Applications • Continuous monitoring the constituent or its surrogate to aid in identifying occurrence and duration of water-quality parameters that exceed regulatory limits.

  9. Relation between SC and TN

  10. Applications (cont) • Identify and optimize periods for sample collection • Quantify constituent loads (volume/time) • Familiarity with the site and data will lead to a better understanding of physical processes and interactions between constituents

  11. QUESTIONS?

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