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Management of Non-Point Source Pollution CE 296B

This lecture explores various monitoring and sampling techniques for managing non-point source pollution, including automated sampling, flow measurement, and data collection equipment. Examples of sampling stations and outfall structures are also presented.

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Management of Non-Point Source Pollution CE 296B

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  1. Management of Non-Point Source PollutionCE 296B Department of Civil Engineering California State University, Sacramento Lecture #18, April 21, 1998 Return to Monitoring

  2. Freeway on fill Upper Boundary of Watershed Surface Drainage to the center Example of a Defined Water Shed

  3. Raingage Steel Box for Sampling Equipment Solar Panel for Battery Charge Maintenance Automated Sampling - Housing For Sampler

  4. Raingage Sampling Equipment Housing Sample Collection Location Flow Channel Flow Direction Sampling Station Layout

  5. Flume for Flow Measurement (Critical Depth Measurement Method) Sample Collection Point Conduit for Sample Line and Depth Measurement Close-up of Sample Collection Location

  6. Sampling Point Stainless Steel Tube. Holes about 3/8” Ultra Close-up of Sampling Point

  7. Bubbler Line Point of Measurement Flume Wall Flow Measurement - Bubbler Set-up

  8. Sampling Station Outfall Drain Inlet, last in the line Drain Inlet and Sampling Station

  9. Pipe Outfall

  10. Sample Collection Tubing Flow Measurement Sample Point (Note the location just off invert) Automated Sampler - Interior

  11. Depth Sensor (for area calculation) Flow Velocity Measurement (magnetic doppler effect) Flow Metering - Inside of a Pipe Q = V • A

  12. Sample Dispenser Sample Bottles Hole for Ice Automated Sampling - Interior With Lids Off

  13. Cellular Phone Data Logger Automated Sampling - Data Collection Equipment • Record: • Rainfall • Flow • Sample Events (To remotely record results and to monitor progress)

  14. Data Logger Hose to bubbler depth measurement Sample distribution apparatus Sample intake tube Sample bottles Automated Sampling - Full Sampler Setup

  15. Data Logger Sample Programmer Sampling Pump Sample Bottle Container Automated Sampling - Equipment Ready for Use

  16. Sampling Equipment Deep Cycle Marine Batteries (charge maintained by solar panel) Remote Power Supply to Sampling Station

  17. Watershed (Note Cut Section) Trees that preclude raingage Sampling Equipment Sampling Point Sampling Station Without Possibility of Raingage

  18. Sampling Station Outfall - Sampling Location (Note how deep water in channel could back up in outfall pipe) Potential for Backwater at Point of Sample

  19. Clogged Channel Leading to the Backwater Situation

  20. Water of U.S. (Big Tujunga Wash) Storm Drain Outlet Point of Discharge - Direct to Water of U.S.

  21. Outfall Structure City Street (Water flows to city drain inlet) Point of Discharge - To Another Surface

  22. Outfall Is this a water of the U.S. Point of Discharge - Maybe to a Water of the U.S.

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