1. 2. 2005On-Site System Survey Eagle Ridge Clermont County Sewer District Clermont County General Health District Clermont County Office of Environmental Quality
2. 3. Introduction
   • Paul Braasch
   • Clermont County
   • Office of Environmental Quality
3. 4. Project History
   • Wastewater Master Plan - 1996
   • The project was included in the County Capital Improvement Plan (CIP) - June 2001
   • Engineering contract for feasibility design of sanitary sewers - December 2001
   • Engineering Conceptual Design - February 2005
   • On-Site Sampling - Spring 2005
4. 5. Study Design
   • Population of interest included Eagle Ridge Subdivision.
   • Determined a Sample Size that provides a representative sample.
   • Analyzed samples for CBOD5, Suspended Solids, Fecal Coliform, and Ammonia.
   • Compared results to OEPA Criteria.
5. 6. Parameters
   • CBOD5 Measure of Organic Matter present in sample.
   • Suspended Solids Aesthetics of Bathing Waters, Drinking Water Palatability.
   • Fecal Coliform Indicates Bacterial Contamination & potential Human Health Risks.
   • Ammonia Toxic to Aquatic Life.
   High Concentration of any Parameter indicates anoncompliant System
6. 7. OEPA Criteria Parameter 1000 cfu/100 mL Fecal 15 mg/L CBOD5 18 mg/L SS 3 mg/L Ammonia OEPA Criteria
7. 8. Criteria Values vs. WWTP Limits *WWTP Permit Limits are Monthly Average Values 10 mg/L 15 mg/L CBOD5 12 mg/L 18 mg/L Suspended Solids 1000 cfu/ 100 mL 1000 cfu/ 100 mL Fecal Coliform 1.46 mg/L 3 mg/L Ammonia Permit Limits* Criteria Parameter LEF WWTP OEPA
8. 9. Survey Results
   • Field Crews encountered both individual discharges and collector lines.
   • Parcels identified with a collector line assumed the same values as the sampled site.These are inferred sites.(hatched area on maps)
   • 90 sites sampled, 41 inferred (74%).
9. 12. Reasons Some Sites Not Sampled
   • Homes with non-discharging systems.
   • Field crew unable to locate discharge.
   • System not discharging when crew was present.
   • No buildings on the property.
10. 13. Survey Results
11. 14. Eagle Ridge CBOD5
12. 15. Eagle Ridge Suspended Solids
13. 16. Eagle Ridge Ammonia
14. 17. Eagle Ridge Fecal Coliform
15. 18.
    • Identified Problem
16. 19. Solutions
    • Repair or replace on-site treatment system
    • Install centralized sewer system
    • Others?
17. 20.
    • Robert Wildey
    • Clermont County
    • General Health District
18. 21. Clermont County Health District
    • Why has my subdivision been chosen to have sewers extended and not a different one?
    • What are the health issues and how do they effect me?
    • If there is a significant health threat why hasnt something been done before now?
19. 22. Onsite Systems
    • Why cant the Board of Health increase monitoring to ensure properly working systems in lieu of connecting to sanitary sewers?
    • Could we improve or replace our existing systems?
    • Mounds, mounds and more mounds.
20. 23. Wisconsin Mound Construction
21. 24. Millennium Mound Construction
22. 25. Glendon Bio-Filter Construction
23. 26. Replacement considerations
    • Cost-$18,000 to $22,000
    • Maintenance-Service Contract of $250 to $350 per year.
    • Large portion of yard rendered unusable for other activities or out buildings/pools.
24. 27. Why cant I just do nothing?
    • This subdivision and other Aerobic Treatment Unit subdivisions have been considered areas that needed to be sewered since sampling of these systems was conducted in the early 90s. Now that sewers have become available for a more reasonable cost than onsite replacement, the health threat these systems pose can no longer be ignored.
25. 28. Regulatory Mandate
    • Federal & State laws require that any discharges of pollutants to waters of the state be regulated under the National Pollutant Discharge Elimination System (NPDES) permitting program.
    • Home Sewage Treatment Systems (HSTSs) are not exempt from these laws.
26. 29. Regulatory Mandate
    • In December, 1999, U.S. EPA issued regulations geared at controlling discharges & protecting water quality associated with polluted storm water from various urbanized areas (Phase II communities).
    • Phase II communities will be required to identify and eliminate illicit discharges to their storm water systems.
    • HSTSs are considered illicit discharges if they are not properly permitted.
27. 30. Regulatory Mandate
    • A general NPDES permit can be issued in situations where there are a class of similar discharges that, when operating under the terms of the permit, have a minimal impact to the environment either individually or as a whole.
    • The general NPDES permitting program provides the only practicable means for providing NPDES permit coverage for Ohios HSTSs.
28. 31. Regulatory Mandate
    • The HSTS general NPDES permit will limit the number of discharging systems by allowing them only when they are the only feasible option for a residence.
    • Phase II communities will be required to eliminate discharging HSTSs when possible by installing central sewers or switching to non-discharging systems.
29. 32.
    • Centralized Sewer System
    • Lyle Bloom
    • Clermont County
    • Sewer District
30. 33. Centralized Sewer Estimated Costs
    • Tentative assessment of $9,977 per parcel (can be assessed to property tax)
    • System Capacity Fee & Permit Fees totaling $2,305 (paid by property owner at time of connection)
    • (continued)
31. 34. Centralized Sewer Estimated Costs (continued)
    • Cost to connect structure to the sewer lateral and abandon on-site system
    • Sewer bill is determined by water usage, minimum bimonthly sewer bill is $20.35(based on 5,000 gallons of water used)
32. 35. $15,250.00$5,250.00$10,000.00TOTAL $525.00$25.00$500.00$500.0020 $550.00$50.00$500.00$1,000.0019 $575.00$75.00$500.00$1,500.0018 $600.00$100.00$500.00$2,000.0017 $625.00$125.00$500.00$2,500.0016 $650.00$150.00$500.00$3,000.0015 $675.00$175.00$500.00$3,500.0014 $700.00$200.00$500.00$4,000.0013 $725.00$225.00$500.00$4,500.0012 $750.00$250.00$500.00$5,000.0011 $775.00$275.00$500.00$5,500.0010 $800.00$300.00$500.00$6,000.009 $825.00$325.00$500.00$6,500.008 $850.00$350.00$500.00$7,000.007 $875.00$375.00$500.00$7,500.006 $900.00$400.00$500.00$8,000.005 $925.00$425.00$500.00$8,500.004 $950.00$450.00$500.00$9,000.003 $975.00$475.00$500.00$9,500.002 $1,000.00$500.00$500.00$10,000.001 PAYMENT PAYMENT BALANCE TOTAL INTEREST @ 5% PRINCIPALYEARLY PRINCIPAL PYM.
33. 36. Sanitary Sewer Construction
34. 37. Sanitary Sewer Construction, Contd
35. 38. Sanitary Sewer Restoration
36. 39. Final Restoration
37. 40. Final Restoration, Contd
38. 41. Final Restoration, Contd
39. 42. Final Restoration, Contd
40. 43. Future
    • Indicate support, opposition or other ideas
    • Comment submittal by September 14, 2005
41. 44. Questions & Comments
    • Copy of this presentation available at:
    • www.oeq.net
42. 45.
    • Copy of this presentation available at:
    • www.oeq.net
43. 46. Conceptual Sewer Plan