Van Wert County’s Alternative Sewage Treatment System Experience December 10, 2010
Enviro-Septic® System  Overview
Enviro-Septic® Technology
Enviro-Septic® Experimental Program Overview <ul><li>Perceived Advantages </li></ul><ul><li>Occupies a smaller footprint t...
Enviro-Septic® Experimental Program Overview <ul><li>Special Provisions </li></ul><ul><li>System designed and installed ac...
Enviro-Septic® Experimental Program Overview <ul><li>In Conclusion </li></ul><ul><li>It is not the specific intent of the ...
One soil? System Installation Overview
Avoid soil compaction System Installation Overview
Excavated system covered with sand promptly to avoid soil damage System Installation Overview
System Installation Overview Preparing sand Installing pipe
System Installation Overview Close-up view Making connections
Demand-dose plumbing System Installation Overview
System Installation Overview Installing “horseshoe” fitting for serial distribution
System Installation Overview Low vent High vent Low vent fitting
System Installation Overview Inspection port before sand placement A window to the infiltrative surface
Gently covering pipes with sand System Installation Overview “ Walking in” the sand between pipes
Placing final sand cover System Installation Overview Sand sculpted and ready for inspection
Covering system System Installation Overview Digging perimeter drain trench Perimeter drain location marked
System Installation Overview Typical perimeter drain layout Perimeter drain sampling port
System Installation Overview Perimeter drain sampling port Sampling port interior view
Typical pump float configuration System Installation Overview “ Alternative” float configuration
Anchoring dosing tank to prevent floating System Installation Overview
<ul><li>Dosing design considerations… </li></ul><ul><li>ODH Technical Specifications for Experimental Systems require dosi...
System Monitoring Program <ul><li>System Monitoring Requirements </li></ul><ul><li>Monthly inspections from November-April...
<ul><li>Inspection Details </li></ul>System Monitoring Program Check pump function and d-box water level
<ul><li>Inspection Details </li></ul>System Monitoring Program Monitor infiltrative surface for ponding
<ul><li>Inspection Details </li></ul>System Monitoring Program Monitor system perimeter drains for flow
<ul><li>Inspection Details </li></ul>System Monitoring Program Collect perimeter drain samples when possible
Hydraulic Loading Concerns on a Van Wert County Site 4” of standing water Damp soil surface System Monitoring Program
4” of standing water Damp soil surface System Monitoring Program <ul><li>Hydraulic Loading Concerns on a Van Wert County S...
System Monitoring Program <ul><li>Hydraulic Loading Concerns on a Van Wert County Site </li></ul>Investigation plan…
Flags indicate locations of observation borings System Monitoring Program <ul><li>Hydraulic Loading Concerns on a Van Wert...
System Monitoring Program <ul><li>Hydraulic Loading Concerns on a Van Wert County Site </li></ul>
No standing water in borings after two days System Monitoring Program <ul><li>Hydraulic Loading Concerns on a Van Wert Cou...
System Monitoring Program System Venting Concerns on a Van Wert County Site
<ul><li>“ PROBLEM SITE” DETAILS: </li></ul><ul><li>Homeowner had complained of sewer gas smell in home as well as fluctuat...
Going Inside the Pipe Uncovering Enviro-Septic pipe after 6 months of use by a family of 3   System Monitoring Program
Going Inside the Pipe Inside of pipe 90’ from d-box System Monitoring Program
System Monitoring Program Random Observations Plant growing in dark inspection port ?? Vegetation patterns as an  indicato...
A few statistics… 19 systems currently in operation in Van Wert County System Monitoring Program
Post-installation system site visits   249 Systems sampled-   7 Sites where drain flow has been directly observed-  4 Site...
Perimeter Drain Sampling System Monitoring Program
Perimeter Drain Sampling First systems began operating - fall 2008 First opportunity to collect samples – March 2009 Four ...
2008-2009 Sampling Results System Monitoring Program
System Monitoring Program 2009-2010 Sampling Results
Perimeter Drain Sampling <ul><li>CONCLUSIONS… </li></ul><ul><li>High suspended solids could be due to recently disturbed s...
Lesson #1: A plastic dosing tank requires extra design and installation considerations. What have we learned???
Lesson #2: The small dose volume required by this system requires an alternative float configuration. What have we learned...
Lesson #3: Perimeter drain flow has been much less frequent than expected. What have we learned??? Some drains can be foun...
Lesson #4: System venting adds another variable when troubleshooting. What have we learned???
Lesson #5: There have been no known problems with freezing, despite temperatures as low as -15 o  F. <ul><li>Morning after...
Lesson #6: Testing data suggests outside factors influence makeup of perimeter drain effluent. What have we learned???
<ul><li>Current system monitoring program </li></ul><ul><li>Sampling will end in 2011 </li></ul><ul><li>Visual monitoring ...
One more thing… www.ohiosepticforum.com forum front page
One more thing… www.ohiosepticforum.com Upcoming training and educational opportunities page
Questions??
<ul><li>Jason Menchhofer </li></ul><ul><li>Environmental Health Director </li></ul><ul><li>Van Wert County Health Departme...
Thank You!!
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Richland co. installer mtg. 12 10-10

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Presentation on Van Wert County's experience with the use of the Presby Enviro-Septic system as an alternative to conventional onsite sewage treatment systems. This presentation was given at a recent sewage treatment system contractor meeting in Richland County, Ohio.

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Richland co. installer mtg. 12 10-10

  1. 1. Van Wert County’s Alternative Sewage Treatment System Experience December 10, 2010
  2. 2. Enviro-Septic® System Overview
  3. 3. Enviro-Septic® Technology
  4. 4. Enviro-Septic® Experimental Program Overview <ul><li>Perceived Advantages </li></ul><ul><li>Occupies a smaller footprint than conventional systems due to high degree of treatment before wastewater is released into soil </li></ul><ul><li>Smaller footprint = less material = lower cost to homeowner </li></ul><ul><li>Smaller footprint makes system more feasible than others for replacement on smaller lots </li></ul><ul><li>Provides advanced treatment without mechanical components ( Standard 40 Class I Certification granted in October, 2009 ) </li></ul>
  5. 5. Enviro-Septic® Experimental Program Overview <ul><li>Special Provisions </li></ul><ul><li>System designed and installed according to Indiana Manual </li></ul><ul><li>Higher soil loading rate/smaller area than previously approved for other systems (2.7-2.9 gpd/sq. ft.) </li></ul><ul><li>48” horizontal separation to perimeter drain permitted (96” is standard) </li></ul><ul><li>Effluent filter not required on septic tank outlet </li></ul><ul><li>Monthly monitoring of system performance from November to April during first year of use (includes perimeter drain sampling when possible) </li></ul>
  6. 6. Enviro-Septic® Experimental Program Overview <ul><li>In Conclusion </li></ul><ul><li>It is not the specific intent of the Van Wert County Health Department to endorse any particular product </li></ul><ul><li>The Van Wert County Health Department is interested in any available information on other technologies that could be used to provide comparable or better treatment than conventional systems at a lower cost to the homeowner </li></ul>
  7. 7. One soil? System Installation Overview
  8. 8. Avoid soil compaction System Installation Overview
  9. 9. Excavated system covered with sand promptly to avoid soil damage System Installation Overview
  10. 10. System Installation Overview Preparing sand Installing pipe
  11. 11. System Installation Overview Close-up view Making connections
  12. 12. Demand-dose plumbing System Installation Overview
  13. 13. System Installation Overview Installing “horseshoe” fitting for serial distribution
  14. 14. System Installation Overview Low vent High vent Low vent fitting
  15. 15. System Installation Overview Inspection port before sand placement A window to the infiltrative surface
  16. 16. Gently covering pipes with sand System Installation Overview “ Walking in” the sand between pipes
  17. 17. Placing final sand cover System Installation Overview Sand sculpted and ready for inspection
  18. 18. Covering system System Installation Overview Digging perimeter drain trench Perimeter drain location marked
  19. 19. System Installation Overview Typical perimeter drain layout Perimeter drain sampling port
  20. 20. System Installation Overview Perimeter drain sampling port Sampling port interior view
  21. 21. Typical pump float configuration System Installation Overview “ Alternative” float configuration
  22. 22. Anchoring dosing tank to prevent floating System Installation Overview
  23. 23. <ul><li>Dosing design considerations… </li></ul><ul><li>ODH Technical Specifications for Experimental Systems require dosing tank volume to accommodate: </li></ul><ul><ul><li>Water level that must remain in tank at all times (to cool submersible pump, etc.) </li></ul></ul><ul><ul><li>Volume of dose pumped to absorption field </li></ul></ul><ul><ul><li>Volume between pump float and high water alarm float </li></ul></ul><ul><ul><li>Two days design flow above high water alarm </li></ul></ul><ul><li>Presby Indiana Design Manual requires: </li></ul><ul><ul><li>Dose = 1/8 to 1/6 of daily design flow (45-60 gal. for 3-bedroom home) </li></ul></ul><ul><ul><li>Flow rate < 20 gpm </li></ul></ul>System Installation Overview
  24. 24. System Monitoring Program <ul><li>System Monitoring Requirements </li></ul><ul><li>Monthly inspections from November-April during the first winter that the system is in operation. </li></ul><ul><li>Testing of perimeter drain effluent when possible. </li></ul><ul><li>Minimum of quarterly inspections after first winter. Inspection frequency is assessed annually. </li></ul>
  25. 25. <ul><li>Inspection Details </li></ul>System Monitoring Program Check pump function and d-box water level
  26. 26. <ul><li>Inspection Details </li></ul>System Monitoring Program Monitor infiltrative surface for ponding
  27. 27. <ul><li>Inspection Details </li></ul>System Monitoring Program Monitor system perimeter drains for flow
  28. 28. <ul><li>Inspection Details </li></ul>System Monitoring Program Collect perimeter drain samples when possible
  29. 29. Hydraulic Loading Concerns on a Van Wert County Site 4” of standing water Damp soil surface System Monitoring Program
  30. 30. 4” of standing water Damp soil surface System Monitoring Program <ul><li>Hydraulic Loading Concerns on a Van Wert County Site </li></ul>
  31. 31. System Monitoring Program <ul><li>Hydraulic Loading Concerns on a Van Wert County Site </li></ul>Investigation plan…
  32. 32. Flags indicate locations of observation borings System Monitoring Program <ul><li>Hydraulic Loading Concerns on a Van Wert County Site </li></ul>
  33. 33. System Monitoring Program <ul><li>Hydraulic Loading Concerns on a Van Wert County Site </li></ul>
  34. 34. No standing water in borings after two days System Monitoring Program <ul><li>Hydraulic Loading Concerns on a Van Wert County Site </li></ul>
  35. 35. System Monitoring Program System Venting Concerns on a Van Wert County Site
  36. 36. <ul><li>“ PROBLEM SITE” DETAILS: </li></ul><ul><li>Homeowner had complained of sewer gas smell in home as well as fluctuating water levels in toilets. </li></ul><ul><li>Initial investigation did not implicate the septic system or solve the problem </li></ul><ul><li>Eventually two interior plumbing issues were discovered and repaired. </li></ul><ul><li>Problem solved??? </li></ul>System Monitoring Program System Venting Concerns on a Van Wert County Site
  37. 37. Going Inside the Pipe Uncovering Enviro-Septic pipe after 6 months of use by a family of 3 System Monitoring Program
  38. 38. Going Inside the Pipe Inside of pipe 90’ from d-box System Monitoring Program
  39. 39. System Monitoring Program Random Observations Plant growing in dark inspection port ?? Vegetation patterns as an indicator of water movement
  40. 40. A few statistics… 19 systems currently in operation in Van Wert County System Monitoring Program
  41. 41. Post-installation system site visits 249 Systems sampled- 7 Sites where drain flow has been directly observed- 4 Sites where drain has been found backed up at sampling port- 5 Sites where no evidence of flow has been observed- 10 A few more statistics… System Monitoring Program
  42. 42. Perimeter Drain Sampling System Monitoring Program
  43. 43. Perimeter Drain Sampling First systems began operating - fall 2008 First opportunity to collect samples – March 2009 Four systems sampled during 2008-2009 season Five systems sampled during 2009-2010 season System Monitoring Program Perimeter drain effluent testing is made possible by the financial support of the Van Wert County Foundation, Ohio Department of Health, and the Van Wert County Board of Health.
  44. 44. 2008-2009 Sampling Results System Monitoring Program
  45. 45. System Monitoring Program 2009-2010 Sampling Results
  46. 46. Perimeter Drain Sampling <ul><li>CONCLUSIONS… </li></ul><ul><li>High suspended solids could be due to recently disturbed soil around the drain </li></ul><ul><li>Bacteria results are very inconsistent </li></ul><ul><li>Comparison of results between curtain drain and system inspection port suggest additional factors influencing bacterial content of drain effluent. </li></ul><ul><li>Hopefully more testing will help to provide a clearer picture </li></ul>System Monitoring Program
  47. 47. Lesson #1: A plastic dosing tank requires extra design and installation considerations. What have we learned???
  48. 48. Lesson #2: The small dose volume required by this system requires an alternative float configuration. What have we learned???
  49. 49. Lesson #3: Perimeter drain flow has been much less frequent than expected. What have we learned??? Some drains can be found flowing very soon after major rainfall, some have not been found flowing at all.
  50. 50. Lesson #4: System venting adds another variable when troubleshooting. What have we learned???
  51. 51. Lesson #5: There have been no known problems with freezing, despite temperatures as low as -15 o F. <ul><li>Morning after temperature dropped to -15 o F </li></ul><ul><li>No freezing in tanks </li></ul><ul><li>Pump operates normally </li></ul><ul><li>No freezing in small-diameter pump line </li></ul><ul><li>No freezing in d-box, even with no snow cover </li></ul><ul><li>No freezing in inspection or sampling ports </li></ul><ul><li>Some freezing noted at warmer temperatures in systems which have not yet seen wastewater (clean water only). </li></ul>Pic of Amstutz sump What have we learned???
  52. 52. Lesson #6: Testing data suggests outside factors influence makeup of perimeter drain effluent. What have we learned???
  53. 53. <ul><li>Current system monitoring program </li></ul><ul><li>Sampling will end in 2011 </li></ul><ul><li>Visual monitoring will continue, with frequency based on each system’s history </li></ul><ul><li>“ Phase II” </li></ul><ul><li>25 additional systems using same sizing criteria </li></ul><ul><li>Replacement installations only </li></ul><ul><li>Multiple water table monitoring wells to be installed on each site to monitor seasonal water table under and around systems. </li></ul>What’s next???
  54. 54. One more thing… www.ohiosepticforum.com forum front page
  55. 55. One more thing… www.ohiosepticforum.com Upcoming training and educational opportunities page
  56. 56. Questions??
  57. 57. <ul><li>Jason Menchhofer </li></ul><ul><li>Environmental Health Director </li></ul><ul><li>Van Wert County Health Department </li></ul><ul><li>419-238-0808, extension 108 </li></ul><ul><li>419-203-6858 </li></ul><ul><li>[email_address] </li></ul><ul><li>www.vanwertcountyhealth.org </li></ul>
  58. 58. Thank You!!

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