Household Sewage Treatment Systems (HSTS) on Storm Water Pollution - - PowerPoint PPT Presentation

The Impact of Household Sewage Treatment Systems (HSTS)

• n

Storm Water Pollution

Storm Water Defined

Water Quantity

Storm Water and Sanitary Sewers

Purpose of Franklin County and Township Storm Water Program

• Compliance with Ohio Environmental Protection

Agency NPDES municipal storm water permit.

• Share resources and expertise by co-permitting.
• Water quality and stream corridor protection.

Franklin County and Township Storm Water Program Participants

• Franklin County Townships
• Franklin County Drainage Engineer
• Franklin County Economic Development and Planning
• Franklin County Sanitary Engineer
• Franklin County Public Health
• Franklin Soil and Water Conservation District
• Residents and businesses in unincorporated Franklin County
• Developers , contractors and consultants working in

unincorporated Franklin County

Franklin County and Township Storm Water Community Benefits

• Public health
• Drinking water
• Recreation
• Wildlife
• Reduced infrastructure costs
• Quality of life

• Public education
• Public involvement
• Construction site runoff
• Post construction site management
• Good housekeeping/pollution prevention
• Illicit discharge detection and elimination

Storm Water Permit Requirements

Storm Water Program Highlights

• Storm water education efforts.
• Mapping of storm sewers to be added to existing

drainage and stream resource maps.

• Enhanced county regulations for construction site

and post-construction management.

• Participation of county and townships in pollution

prevention programs.

• Continued resolution of illicit discharges including

failing HSTS.

Report Pollution!

• Failing Household Sewage Treatment Systems

Franklin County Public Health (614) 525-HSTS (4787) or failingHSTS@franklincountyohio.gov

• Report Emergency Spills

Ohio EPA 24-Hour Emergency Hotline 1 (800) 282-9378

• Report any other water pollution related complaint or

concern to:

Franklin Soil and Water Conservation District (614) 486-9613

Definitions

• National Pollutant Discharge Elimination System

(NPDES)

• Municipal Separate Storm Sewer System (MS4)
• Household Sewage Treatment Systems (HSTS)
• Illicit Discharge Detection and Elimination (IDDE)

IDDE Topics Include

• Explanation of public health risks
• Explanation of Household Sewage

Treatment Systems

• Identify and eliminate failing HSTS
• Where are the public health risks

What are the Public Health Risks?

• Untreated or improperly treated sewage can

contaminate:

– drinking water supply – drainage ditches – streams, rivers and lakes

• When household sewage treatment systems

fail, untreated sewage is discharged into the environment.

What are the Public Health Risks?

• Contact with human waste can pose health

risks because it can carry disease-causing

• rganisms.
• Health risks are directly tied to exposure and

ingestion of untreated sewage.

• The young, the old and those with chronic

conditions are at higher risk.

Avoid Exposure

• Do not allow kids and pets to play in water

that looks and smells like sewage.

• Do not swallow or get water from ditches or

streams in your mouth or nose.

• If you are in those types of areas, wash hands

thoroughly with soap and water.

The aeration system was invented in the 1970’s as a treatment option for households not connected to the sanitary sewer

Human Fecal Pollution

Discharge pipe Untreated sewage

Discharge pipe with untreated human waste

Untreated sewage in catch basin storm sewer

Untreated sewage Storm sewer

Old Aeration System

Aeration chamber

Maintaining Aeration Systems

• Annual inspection by Franklin County Public

Health (FCPH) or a maintenance contract.

• Properly operating motor.
• Properly operating air intake.
• Tank pumped based on manufacturers

recommendations.

Septic Tank and Leach Field Systems

Maintaining Septic and Leach Field Systems

• Tank pumped based on manufacturers

recommendations.

• Functional baffles.
• Check for sewage or ponding in your yard.
• Ensure leach field is not connected into a

farm tile, ditch or storm sewer.

Why HSTS Fail

• Aeration, septic and leach systems fail

because:

– Unsuitable soil conditions – Improper design and installation – Inadequate maintenance – Age of the system – Amount of water use

Septic and Leach Field System Failures

Definition of a Public Health Nuisance

1) HSTS cause a public health nuisance when any of the following situations occur:

a) Not operating properly due to a missing component. b) Incorrect settings. c) Mechanical or electrical failure (motor not running).

AND, timely repairs of these situations are not made after notice to the property owner by the Board of Health.

Definition of a Public Health Nuisance

2) There is a blockage in a known sewage treatment system component or pipe that causes a backup of sewage or effluent affecting the treatment process

• r inhibiting proper plumbing drainage.

Definition of a Public Health Nuisance

3) There is ponding or bleeding of liquid onto the surface of the ground or into surface water. The liquid has a distinct sewage odor, a black or grey coloration, or the presence of organic matter and any of the following:

a) a dye test identifying effluent from an HSTS b) samples show fecal coliform at a level that is equal or greater than five thousand colonies per one hundred milliliters of liquid c) samples show more than one thousand thirty e.coli counts per one hundred milliliters of liquid

Current Annual Inspection Program

• We inspect individual aeration system for

a nuisance:

• if the system is not operating properly due

to a missing component, incorrect settings,

• r a mechanical or electrical failure.
• if there is a blockage in a known sewage

treatment system pipe that causes a backup of sewage or inhibits drainage.

New Stormwater Pollution Investigations

• FCSWCD will inspect storm sewer outfalls

for the presence of sewage during dry weather screening.

– If there are "obvious" or “suspicious” signs of sewage pollution, FCPH will investigate the aeration or septic systems connected to the storm sewer for nuisance conditions, and will abate the nuisance if found.

Where are the Public Health Risks?

• Every township in Franklin County.
• In urban areas.
• In rural areas.
• Along roadways.
• Along streams.

How Do We Know the Risks Exist?

• Nuisance and pollution complaints.
• Maintenance reports by HSTS owners.
• Annual inspections performed by FCPH.
• Observation during roadway construction.
• Dry Weather Screening for NPDES permit.

Questions?