Industrial Pretreatment

The purpose of the District's Industrial Pretreatment Program is to reduce the amount of pollutants that can enter and adversely impact the wastewater collection system and Felix C. Davis Wastewater Treatment Plant.  This is achieved through a permitting system in which an industry's wastewater is evaluated for its potential impact on the collection system, the wastewater treatment plant, wastewater treatment employees, and the environment at large. 

Please read on for information about individual Industrial Pretreatment Programs.

Industrial Users

Industrial users in the District's service area must be evaluated to determine if permitting is necessary due to high volumes of water and/or the existence of potential pollutants that can harm the collection system.  Some industries may be required to treat their wastewater prior to discharging to the sewer to reduce or eliminate harmful contaminants.  Below is a table of frequently-used reference material and forms for industrial users.


 40 CFR Part 433

 Federal Regulations and limits pertaining to point-source dischargers in the metal finishing category.

 Permit Application  Please fill out this form if you are a new industrial user, an existing user with changes, or an existing permittee with changes.
 Best Management Practices  This document provides an outline of National Pretreatment Standards, including prohibited discharges.
 Pollutant Limits (2018)

 Current values of the District's Pretreatment Local Pollutant Limits.

 SC Code of Laws for Operators  The SC Code of Laws pertaining to wastewater treatment operators, including authorization/unauthorization to practice and licensure before practice.
 IU Notification Requirements  A list of the circumstances and time limit in which the District must be notified by an Industrial User.
 Responsible Party Form  This form is used to designate a facility's responsible official(s) and alternates, in accordance with Federal Responsible Party Regulations.
 Sampling Notification  Please fill out this sampling notification form 24 hours prior to any sampling event.
 Sampling for Pollutants not Present  Federal Regulations pertaining to sampling waivers for pollutants not expected in the industrial user's waste stream.
 Slug Discharge  Please fill out this form in the event of any non-routine discharge.
 Spill Notification  Please fill out this form in the event of any spill.
 Violation Notification  Please fill out this form within 24 hours of any violation of permit terms or limits.
 Wastewater Discharge Disclosure Declaration (WDDD)  This form allows a user to provide basic information about the nature of their wastewater to the District.  All non-domestic users may be required to complete this form.
 SC Water Pollution Control Permits, Regulation 61-9  This document details the South Carolina general pretreatment regulations and requirements for new and existing sources of pollution.


Fats, Oils, and Grease Program.

The Fats, Oils, and Grease (FOG) Program is aimed at reducing the introduction of fats, oils, and grease from food preparation and clean-up into the sewer system.  The FOG Program maintains an inspection program for food service establishments and works to educate the public about the dangers of allowing FOG to go down the drain, as well as wet wipes and other foreign material. 

For restaurant and food service requirements and forms or for FOG education for students and residential customers, please visit our FOG page!

Breweries and Distilleries

Currently, we are in a data-gathering phase regarding the surcharges for breweries, micro-breweries, and distilleries.  Breweries that discharge more than 25,000 gallons per day (gpd) are required to obtain an industrial user pretreatment permit.  Please complete this questionnaire and return it to the Industrial Pretreatment Department Supervisor so we can determine how to better serve you.

Additionally, please check back to this page frequently for updates on brewery and distillery wastewater guidance.

Dental Regulations

South Carolina Department of Health and Environmental Control (SCDHEC) and the Environmental Protection Agency (EPA) are currently devising a registration and inspection program for all South Carolina dental facilities that place or remove amalgams.  These facilities must have amalgam separators and follow Best Management Practices.  To facilitate the completion of the State database, please complete this dental questionnaire and return it to the Industrial Pretreatment Department Supervisor.

As this is a developing program, please check back frequently for updates.

Reference Material

North Charleston Sewer District Sewer Use Ordinance

EPA National Pretreatment Program

SC DHEC Pretreatment Program

Contact Information

Kelly Singer, Industrial Pretreatment Supervisor   843.764.3072

Sarah Mason, FOG Program Manager   843.764.3072

Darnell Collins, Pretreatment Inspector   843.764.3072