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Massachusetts Public Health Inspector Training Wastewater Certificate Program (MA PHIT WW)

Massachusetts Public Health Inspector Training Wastewater Certificate Program (MA PHIT WW). Session 5: Design and Plan Review— Non-Conventional Systems. Learning Objectives. After completing this session, you will be able to : Describe situations that require non-conventional solutions

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Massachusetts Public Health Inspector Training Wastewater Certificate Program (MA PHIT WW)

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  1. Massachusetts Public Health Inspector TrainingWastewater Certificate Program (MA PHIT WW) Session 5: Design and Plan Review— Non-Conventional Systems

  2. Learning Objectives • After completing this session, you will be able to: • Describe situations that require non-conventional solutions • Explain non-conventional solutions and the required approval process for each • List and define the innovative/alternative (I/A) technology classifications • Describe certain I/A technologies MA PHIT- Wastewater Certificate Program, Session 5

  3. MA PHIT- Wastewater Certificate Program, Session 5

  4. Non-Conventional Designs MA PHIT- Wastewater Certificate Program, Session 5

  5. Non-Conventional Solutions MA PHIT- Wastewater Certificate Program, Session 5

  6. Soil Is Too Wet to Perform a Percolation Test MA PHIT- Wastewater Certificate Program, Session 5

  7. Upgrade Plan Does Not MeetTitle 5 Standards MA PHIT- Wastewater Certificate Program, Session 5

  8. Flow Over 2,000 GPD 1. Assessment of the soil and groundwater conditions beneath the proposed SAS MA PHIT- Wastewater Certificate Program, Session 5

  9. Flow Over 2,000 GPD, cont. 2. Pressure distribution or drip dispersal (MassDEP Guidance) MA PHIT- Wastewater Certificate Program, Session 5

  10. Pumping in General Pumping to septic tank • Permitted if comply with 310 CMR 15.229 • If not, MassDEP approval is required (BRPWP67) Pumping to SAS • Pressure distribution • Required for all systems of 2,000 gpd or greater Dosing vs. Pressure Distribution MA PHIT- Wastewater Certificate Program, Session 5

  11. Domestic Garbage Grinder • Under sink garbage disposal impacts the design of an onsite wastewater system MA PHIT- Wastewater Certificate Program, Session 5

  12. Upgrade is Costly MA PHIT- Wastewater Certificate Program, Session 5

  13. Cannot Meet New Construction Requirements • Variances may be allowed • High standard • Application and review process MA PHIT- Wastewater Certificate Program, Session 5

  14. Shared System or Components • One or more properties sharing all or parts of an on-site wastewater system MA PHIT- Wastewater Certificate Program, Session 5

  15. Nitrogen Concerns • Nitrogen is a pollutant of concern in potable drinking water, and in coastal embayments which are not well flushed MA PHIT- Wastewater Certificate Program, Session 5

  16. Design Flow Variations • Title 5 has a table for standard facilities but sometimes this table is not relevant. A site-specific assessment must be made, for design purposes. Examples? MA PHIT- Wastewater Certificate Program, Session 5

  17. Severe limitations May install: • Tight tanks • Composting toilets • Innovative or Alternative (I/A) Technology MA PHIT- Wastewater Certificate Program, Session 5

  18. I/A Certification There are four types of approvals • Remedial • General • Provisional • Piloting http://www.mass.gov/eea/agencies/massdep/water/wastewater/title-5-innovative-alternative-technology-approvals.html MA PHIT- Wastewater Certificate Program, Session 5

  19. Limitations to Conventional Treatment MA PHIT- Wastewater Certificate Program, Session 5

  20. I/A Classification • Secondary treatment units • Buried filter units • Alternative disposal systems • Restorative treatment MA PHIT- Wastewater Certificate Program, Session 5

  21. Secondary Treatment Units MA PHIT- Wastewater Certificate Program, Session 5

  22. Buried Filter Units MA PHIT- Wastewater Certificate Program, Session 5

  23. Alternate Disposal Systems MA PHIT- Wastewater Certificate Program, Session 5

  24. Restorative Treatment MA PHIT- Wastewater Certificate Program, Session 5

  25. I/A Summary • Allowed by Title 5 • Generally provide equal or better protection of the environment • Require more detail by designer • Require vigilant review by BOH • Use MassDEP website for approval lists and letters MA PHIT- Wastewater Certificate Program, Session 5

  26. Session Recap • After completing this session, you will be able to: • Describe situations that require non-conventional solutions • Explain non-conventional solutions and the required approval process for each • List and define the innovative/alternative (I/A) technology classifications • Describe certain I/A technologies MA PHIT- Wastewater Certificate Program, Session 5

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