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Pretreatment Programs

About IWMD's Pretreatment Programs

ABOUT

Pretreatment programs have the goal of:
 

  • eliminating pollutants;
  • reducing the amount of pollutants; or
  • changing pollutants to a less contaminating state
prior to, or in lieu of, discharging them into the sewers, storm drain system or the waters of the state.

Pretreatment can be obtained by physical, chemical or biological processes.

PRETREATMENT PROGRAM ACHIEVEMENTS

 

Heavy Metal Loading Reduction to the Water Reclamation Plants

 

The success of the pretreatment program is exemplified by the dramatic reduction of total heavy metal loadings to the Hyperion Water Reclamation Plant as graphically shown in the following figures. 

 

Heavy Metals

 

Reduced Sewer Overflows 


The success of the Fats, Oils and Grease (FOG) Control Program, in conjunction with LASAN's Wastewater Collection System Division's aggressive sewer cleaning and maintenance program has reduced the overall FOG-related sewer overflows by 96% since 2000.

 Reduced Sewer Overflows

INFORMATION FOR INDUSTRIAL USERS

Info For Industrial Users 1
Info For Industrial Users 1
Local Industrial User

Information for businesses discharging less than 25,000 gallons per day of process wastewater to the sewer and not covered under Federal Categorical Pretreatment Standards.

More about Local Industrial User
electric power plant
electric power plant
Significant Industrial Users: Federal Categorical

Information for Categorical Industrial Users. This is any discharger of wastewater who is subject to National Categorical Pretreatment Standards.

More about Significant Industrial Users: Federal Categorical
Info For Industrial Users 3
Info For Industrial Users 3
Significant Industrial Users: Non-Categorical

Information for any business that discharges an average of 25,000 gallons or more per day of process wastewater to the sewer, but is not subject to National Categorical Pretreatment Standards.

More about Significant Industrial Users: Non-Categorical
FOG clogged pipe
FOG clogged pipe
Fats, Oils and Grease Control

Information about the program  to control the release of fats, oils and grease (FOG) from food services establishments.

More about Fats, Oils and Grease Control
dental tool
dental tool
Dental

Information for dental offices about how to manage their waste.

More about Dental
dry cleaning equipment
dry cleaning equipment
Dry Cleaners

Information for dry cleaners about the Dry Cleaners Certification and Permitting Program and how to manage their waste.

More about Dry Cleaners
mobile washer
mobile washer
Mobile Washer

Information for businesses providing mobile car and vehicle washing.

More about Mobile Washer
septic tank
septic tank
Septage

Information for businesses and residences that discharge septage directly to the sewer.

More about Septage