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MacGyver Goes Industrial Monitoring

MacGyver Goes Industrial Monitoring. Challenging Sampling Locations. City of Portland Bureau of Environmental Services by Will Romanelli and Doug Hutchinson. Let’s Do the Numbers. Permitted Industries: 166 Permitted Discharging Industries: 143 Sample points: 190

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MacGyver Goes Industrial Monitoring

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  1. MacGyver Goes Industrial Monitoring Challenging Sampling Locations City of Portland Bureau of Environmental Services by Will Romanelli and Doug Hutchinson

  2. Let’s Do the Numbers... • Permitted Industries: 166 • Permitted Discharging Industries: 143 • Sample points: 190 • Industries sampled per month: 75 to 80 • Total grab samples per year: ~600 • Total composite samples per year: ~700

  3. Industrial Sampling Locations Map Columbia River

  4. What makes Portland unique?

  5. What makes Portland unique (in terms of pretreatment)? • Large number of industries and samples • Wide range of industrial users • Age of industries and infrastructure • Combined waste streams • Challenging sampling points • City code (17.34.080 (c)) does not necessarily require specific monitoring location: “...may require an industrial wastewater discharger to install and maintain at the discharger's expense a suitable manhole in the discharger's branch sewer or other suitable monitoring access…”

  6. Standard Wastewater Sampling Procedures Point of Compliance (POC) – a pre-determined location, representing an industry’s discharge, at which the industry’s wastewater is monitored for compliance with city discharge limits.

  7. Grab Collection Methods • Collect directly into bottle (preferred) - required for oil and grease samples • Pour from stainless steel bailer into container • Volatile organic compounds • Dissolved sulfide • Pump with sampler (if setting composite) • pH • Total and amenable cyanide • Total sulfide

  8. Composite Sampler Set-Up

  9. Composite SamplerProgramming and Calibration Sampler calibrated for a 50-mL aliquot. For a standard setup, sampler programmed to take an aliquot every 30 minutes for 24 hours.

  10. Composite Sample Retrieval • 24-hour Composite • Hours of Operation • Batch

  11. Real World Industrial Monitoring

  12. Challenging Sampling Conditions • Site Access • Flow-Related: low, fast, intermittent, batch, surcharging, high-pressure plumbing • High Solids Content • Deep Manholes • Standing Water in Vaults/Sumps • FOG • Safety • Communication Difficulties

  13. Responding to the Challenges

  14. Site Access Issues • Locked Facilities • Security Protocols • Long Walks with Equipment • Geography • Physical Obstructions

  15. Locked Facilities

  16. …up-to-date documentation

  17. Security Protocols…

  18. Employer Mandated Fitness Program (or Long Walks with Equipment)

  19. Geography

  20. Physical Obstructions

  21. Physical Obstructions

  22. Landscaping

  23. Flow-Related Conditions • Shallow Flow • Fast Flow • Intermittent Flow • Batch Discharges • Surcharging • High Pressure Plumbing

  24. “God created the world, but duct tape holds it together” (author unknown)

  25. Shallow Flow Low-level sample head, secured from above

  26. Fast Flow

  27. Intermittent Flow

  28. Batch Discharges • Use a liquid level trigger (flow actuator) • More frequent aliquots collected (e.g., every 5 minutes instead of 30 minutes) • Coordination with the industry • Good Communication!

  29. Surcharging Surcharging – when flow exceeds a pipe’s capacity causing wastewater to backup into a manhole, vault, etc.

  30. High-Pressure Plumbing

  31. High Solids Content • Combined Sewage System • Process Solids

  32. Combined Sewage System Process Water

  33. Process Solids

  34. Avoiding Solids Interference Sanitary waste in same line as process waste

  35. Deep Manholes Sampling at depths > 20 feet can exceed the capacity of the peristaltic pump to draw sample

  36. The Peristaltic Pump Rollers Housing Spindle

  37. Excessive Compensation for Excessive Head with Duct Tape Duct Tape Liner

  38. Standing Water in Vaults Floating fat layer in a stagnant vault and sediment build-up on the bottom Secure tubing below fat layer and above sediment on floor of vault

  39. Sumps

  40. FOG(Fats, Oils, Grease)

  41. Safety Concerns Industrial Sites • Atmospheres • Splashes • Traffic • Geography • Non-Ergonomic Situations • Animals

  42. The Industry Safety Standard

  43. Atmospheres • Extreme Temperatures • Vapors

  44. Splashes • High-Pressure Plumbing • Fast Flow From Hoses

  45. High-Pressure Plumbing

  46. Hoses

  47. Traffic • Public Vehicles on Roadways • Industrial • Forklifts • Cranes • Railroad Cars

  48. Effective Communication • Ask the Permit Manager (PM) • Ask the Industrial User (IU) • Field Documentation Created • Field Crew Refers to the Documentation

  49. Field Documentation(Tracking Sheet)

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