Industrial Pretreatment Program | Fort Collins - Loveland Water District

The South Fort Collins Sanitation District (SFCSD) Industrial Pretreatment Program ensures that all local, state and federal regulations and standards are met regarding the quality of wastewater discharged into the City’s sanitary sewer system and wastewater treatment facility. Depending on the type of business, certain facilities may be required to “pre-treat” their wastewater prior to discharge into the sewer. “Pretreatment” means installing, operating and adequately maintaining pretreatment devices and/or systems to remove pollutants that could otherwise damage or obstruct the wastewater collection system or interfere with the wastewater treatment process. Pretreatment devices include gravity grease interceptors utilized to remove excess fats, oils and grease (FOG) from food service establishments, or sand/oil interceptors to remove excess grit, sand and petroleum oils from manufacturing facilities, auto shops, car washes and other operations.

SFCSD has implemented policies to ensure businesses required to pretreat their wastewater understand local regulations. Find more information on the different programs below.

FOG Program

Restaurants and other food establishments can produce fats, oils, and grease (FOG) through routine cooking and cleaning activities. If improperly managed, these materials can clog sewer pipes, resulting in backups into the facility, damage to the collection lines, or sewage overflows in nearby areas. Learn more.

Oil/Sand Program

Automobile maintenance and repair shops, car washes, manufacturing operations and equipment maintenance facilities all have the potential to introduce petroleum oil, grit and sand into the sanitary sewer. These pollutants can cause dangerous conditions in the sewer, can cause backups and overflows and have the potential to disrupt the treatment processes at the wastewater treatment facility. To better control and prevent petroleum oil, grit, and sand from entering the collection system, facilities may need to install a sand/oil interceptor prior to discharge into the sanitary sewer. Prior to building construction or remodeling, facilities are required to send construction drawings of the facility to their local sewer agency. Plans will be reviewed by SFCSD staff for compliance with the O/S Policy.

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New Businesses

SFCSD evaluates new and existing businesses that have moved, experienced a change of ownership, or has undergone other significant changes (e.g. process change).  A Business Questionnaire is used to identify and locate all possible businesses that may have additional pretreatment requirements.

The information collected is used to identify and control discharges to the sanitary sewer which might result in any or all of the following:

  • Interfere with wastewater treatment plant operations
  • Limit biosolids recycling opportunities
  • Endanger the health or safety of wastewater collection system workers
  • Pass through the treatment process to harm human health and/or the environment

An inspection may be conducted to verify the information after a thorough review. If process wastewater is determined to have the potential of causing a significant impact on the wastewater collection system, environment, or the wastewater treatment facility, the business must apply for and receive a permit from the SFCSD prior to discharging to the sanitary sewer.