Presented by: Agustin Socarras, P.E. Chief, W & WW – Conveyance Section

Department of Environmental Resources ManagementDERM

July 31, 2002

Pollution Prevention and Environmental Essentials Conference

Pollution Prevention in Pollution Prevention in Private Sanitary Sewer Private Sanitary Sewer

SystemsSystems

Topics of Presentation

• Defective Laterals (Smoke Testing)

• Private Sanitary Sewers (PSO)

• Grease Discharge Program (GDO)

Defective Clean-Out

Defective Laterals (Smoke Testing)

Defective Laterals (Smoke Testing)

Defective Lateral

Defective Laterals (Smoke Testing)

Roof Drain

Roof Interconnection

Defective Laterals (Smoke Testing)

Interconnection

Defective LateralsDirectional Drilling

Repair / Enforcement1. Clean-Out Defects

• Utility Leaves Door Hanger Notice• DERM follows up until corrected

2. Lateral Defects• Utility forwards field report to DERM• DERM follows up until corrected

3. Direct Drilling

• Utility performs the repair

4. Roof Drain

• Inspector issues Cease and Desist

5. Interconnection• Utility forwards field report to DERM• DERM follows up until corrected

Repair / Enforcement

* Defects 2001 2002

Identified 96 108

Corrected 44 68

* Defects identified by M-DWASD only.

Private Sanitary Sewers Operating (PSO) Permit Program

Private Sanitary Sewers Operating Program (PSO)

Who is required to have a PSO Permit?

• Facilities with one, or more, Private Sanitary Sewer Pump Stations

• Facilities with a large Sanitary Sewer Collection System– 1,000 L.F. or more of 6 in. pipe diameter,

with or without a PS.

Main Requirements• Operations & Maintenance (O&M)

Manual• December 1, 1999

• Sanitary Sewer Evaluation System (SSES)• Final report by November 12, 2002 – Must follow provisions and requirements set forth in the

U.S. EPA's Sewer System Infrastructure Analysis and Rehabilitation Handbook (October, 1991 EPA/626/6-91/030)

Private Sanitary Sewers Operating Program (PSO)

Objectives of the Operations and Maintenance Manual

• To demonstrate the facility’s capability to operate and maintain the system as intended.

• To assure normal continues operation

• Prevent environmental nuisances

Private Sanitary Sewers Operating Program (PSO)

Private Sanitary Sewers Operating Program (PSO)

Sanitary Sewer Evaluation Survey (SSES)

• To prevent sanitary sewage overflows (SSO) and exfiltration, and to reduce or eliminate infiltration /inflow of groundwater and rainwater into the sanitary sewer collection system by monitoring and required rehabilitation.– DERM prepared Guidelines

• 775 private Sanitary Sewer Systems permitted– ALL are required to do the SSES by 11/12/02

• 23% Submitted

– ALL were required to submit an Operation and Maintenance Manual

• 97% Submitted

Private Sanitary Sewers Operating Program (PSO)

Program Objective

• To reduce oil and grease concentrations in wastewater that is discharged to the public sanitary collection/transmission system by monitoring, sampling and educating facility operators.

Grease Discharge Program (GDO)

Grease Discharge Program (GDO)

Who is required to have a GDO Permit?• Restaurants• Bakeries• Cafeterias• Supermarkets• Food Processors• Specialty Shops• And Other Non-residential facilities

Grease Discharge Program (GDO)

Common Problems Found:

• Severe Rusting• Holes/Breaches• Missing/Broken Baffles• Poor Maintenance • Improper Plumbing• Undersized Systems• Wastewater Backups• Difficult Access

Legal Authority

• Chapter 24 of Miami-Dade County Code

• Chapter 62-604, State of Florida

• M-DC Ordinance 94-132, GDO

• M-DC Ordinance 96-166, PSO

Additional Questions?

DERM - W&WW Conveyance Section, Ph. (305) 372-6899