Industrial Pretreatment Program
The industrial pretreatment program serves to prevent the introduction of pollutants that could interfere with the operations of Chesterfield County’s wastewater treatment plants, to prevent the pass-through of pollutants that could adversely affect aquatic life within the receiving water, to improve the opportunities to recycle and reclaim industrial wastewater and sludge, and to prevent the adverse health and safety effects for workers both at the treatment plant and at the collection system.
Our program meets these objectives by continuously evaluating the wastewater of new and existing facilities and issuing wastewater discharge permits and monitoring permitted industries by regularly sampling wastewater discharge and conducting comprehensive facility inspections. Our pretreatment program was awarded the Clean Water Act Recognition Award in both 1997 and 2002 from the Environmental Protection Agency (EPA). View the Local Discharge Limits (PDF).
Pretreatment Program Regulations
Under pretreatment program regulations, industries must meet all discharge standards including federally mandated prohibited discharge standards and categorical discharge standards, as well as local discharge standards for pollutants in their wastewater. Industries may be required to pretreat their wastewater discharge if the pollutants exceed, or have the potential to exceed, the allowable discharge concentration.
We have two wastewater treatment facilities: Falling Creek (PDF) and Proctors Creek (PDF). We do not treat our storm water within the sanitary sewer system. We have the capacity to treat roughly 39 million gallons of wastewater a day from these facilities. The effluent is discharged into the James River. Biosolids from the treatment process are categorized as Class B which is used for land application purposes.
The implementation regulations for the pretreatment program can be found in Chapter 18 of the Chesterfield County Ordinance, Article IV ̶ Industrial Waste Discharge.
Wastewater Treatment Plants
Wastewater treatment facilities are designed to treat domestic waste by physical, biological, and chemical processes. However, industries often use heavy metals, chemicals, acids, or other materials in their operations. If discharged in the sewer system, these materials have the potential to erode sewer lines, produce explosive conditions and interfere with the treatment facilities or impact the waterways.
Reducing Harming Pollutants
The pretreatment program focuses on reducing harmful pollutants discharged from industries to the treatment plants that could interfere with the treatment process or pass through the treatment system. Local limits imposed by the program on industries ensures that the Proctors Creek (PDF) and Falling Creek (PDF) wastewater treatment plants meet their federally mandated discharge limits. The program also monitors the quality of biosolids to ensure safe land application.
Integrated Fix Film Activated Sludge (IFAS) System
Our wastewater treatment facilities uses an IFAS system. It is designed to treat wastewater to meet the Virginia Department of Environmental Quality’s regulations, including nutrient removal regulation. An IFAS system uses floating media in an activated sludge basin to develop the growth of biomass and enhance the treatment process to meet nutrient regulations.
Cost Recovery and Surcharge Program
All Industrial Users (IUs) that discharge strong waste and nutrients in excess of the treatment plant design load will be surcharged.
A strong waste is defined by the discharge concentration of Biochemical Oxygen Demand (BOD) or Total Suspended Solids (TSS) that exceeds 250 milligrams per liter; Total Nitrogen (TN) that exceeds 40 milligrams per liter; Total Phosphorus (TP) that exceeds 8 milligrams per liter. The concentration of each parameter will be updated twice each year, on Jan. 1 and July 1, based on data generated by Chesterfield County, as well as any data submitted by the industries. The revenue created by these charges offsets the costs of treating their strong waste and high nutrient discharges.
Biochemical Oxygen Demand (BOD) Surcharge
((BOD – 250)(62.4 x V) x RBOD)
- BOD = in parts per million of industrial waste
- V = Volume of the industrial waste in cubic feet.
- RBOD = $BOD/pound
Total Suspended Solids (TSS) Surcharge
((TSS – 250)(62.4 x V) x RTSS)
- TSS = in parts per million of industrial waste
- V = Volume of the industrial waste in cubic feet.
- RTSS = $TSS/pound
Total Nitrogen (TN) Surcharge
((TN – 40)(62.4 x V) x RTN)
- TN = in parts per million of industrial waste
- V = Volume of the industrial waste in cubic feet
- RTN = $TN/pound
Total Phosphorus (TP) Surcharge
((TP – 8)(62.4 x V) x RTP)
- TP = in parts per million of industrial waste
- V = Volume of the industrial waste in cubic feet.
- RTP = $TP/pound
Dental Practice Wastewater Discharge Program
- Lead foil
- Mercury (PDF)
- X-ray fixer
Dental practices required to implement best management practices (BMP) are:
- Oral and maxillofacial surgery
- Oral medicine
- Oral pathology
Fats, Oils and Grease Program
Fats, oils and grease (FOG) (PDF) can be discharged to the sewer system, so long as the concentration remain within acceptable limits as defined by Chesterfield's sewer use ordinance and local limits (Chapter 18, Article IV, Section 18, 90-103).
Excessive discharge of FOG can accumulate in sewer pipes and manholes, commonly referred to as the collection system. This accumulation, over time, could result in blockages within the collection system which, in turn, could cause overflows into surrounding waterways or sewer back-ups into homes or businesses. This would be hazardous to public health and safety and aquatic life.
Commercial Customers and Grease Interceptors (GI)
Commercial customers (which include, but are not limited to: bars, cafeterias, church kitchens, hotel kitchens, restaurants, school kitchens and other food service establishments) are required to implement best management practices.
Any business that discharges fats, oils and grease (FOG) must install a grease interceptor (GI) inside or outside of the building. GIs must be properly maintained and are subject to inspection by Chesterfield County’s inspector. The inspector ensures that the equipment is functioning as designed and that it is being cleaned and serviced properly.
Best Management Practices and Control Guidelines
The easiest and most effective solution to an oil and grease problem is to keep these materials out of the sewer system. This can be accomplished are by adhering to the following:
- Do not pour any oil or grease into sinks, floor drains or toilets, and never flush grease down a line with hot water.
- Do not wash plates and utensils with water until after oil and grease are removed by dry methods.
- Do not use hot water to rinse grease off surfaces.
- Do not put food scraps down drains or connect a garbage grinder to a grease trap.
- Do not leave a rendering barrel outside that is overflowing or uncovered; grease can wash off into storm sewers when it rains.
- Do install adequately sized grease traps, or interceptors, and maintain them, including frequent cleaning and emptying.
- Do connect all grease-bearing drains to the grease trap.
- Do use sink basket screens to collect excess food waste.
- Do scrape all food, including oil and grease from plates and utensils, into the garbage before washing.
- Do contain any oil and grease spills with dry, absorbent materials, and discard materials in the garbage.
- Do investigate cleansers claiming to dissolve grease before buying. Usually these products simply pass grease down the line, causing problems elsewhere.
- Do recycle oil and grease by collecting it in a barrel and sending it to a rendering company.
- Do maintain records of the cleaning and repairs of the grease trap.
- Do train and instruct staff on good housekeeping practices, maintenance of grease traps, etc.
- Do post "No Grease" signs above sinks and on drains.
Wastewater Discharge Permits
Although all non-domestic users, known as Industrial Users (IUs), are subject to Pretreatment Program regulations, most businesses simply need to follow the requirement that they not discharge anything that adversely affects the sewer lines and treatment plant.
The EPA has developed the following criteria to determine which IUs should be identified as Significant Industrial Users (SIUs). All IUs, that meet any of the following criteria, are required to have a Wastewater Discharge Permit:
- Discharges average of 25,000 gallons per day or more of process wastewater to the POTW (excluding sanitary, noncontact cooling and boiler blowdown wastewater)
- Contributes a process waste stream which makes up 5 percent or more of the average dry weather hydraulic or organic loading capacity of a POTW
- Is designated as such by the Control Authority on the basis that the Industrial User has a reasonable potential for adversely affecting the POTW's operation or for violating any Pretreatment Standard or requirement in accordance with 40 CFR 403.8(f)(6)
- Subject to Federal Categorical Standards. EPA defines certain processes as "categorical" in the Code of Federal Regulations under 40 CFR 403.6 and 40 CFR chapter I, subchapter N. These industries must follow federally mandated discharge limits and are known as Categorical Industrial Users (CIUs)
Download the industrial wastewater discharge permit application (PDF) and the slug discharge control plan (PDF).
SIU Regulation and Self-Monitoring
Chesterfield County's Pretreatment Program regulates all SIUs and requires self-monitoring for certain IUs. The permitted industries are monitored for wastewater quality on a regular schedule and inspected by pretreatment personnel annually or more if needed. When in violation of a regulation, an industry is notified via a certified document describing the applicable penalties and/or formal enforcement action (for specific enforcement protocol, view the enforcement response plan (PDF)).
Wastewater Hauler Discharge Permits
This permit is for businesses that haul and dispose liquid wastewater into the Chesterfield County Wastewater Treatment Plant. Chesterfield County currently accepts domestic septage, grease trap, and oil/water separator waste at a septage receiving station located within the Proctor Creek Waste Water Treatment Plant:
Proctor Creek Waste Water Treatment Plant
1200 Coxendale Road
Chester, VA 23836
In order to prevent the introduction of hazardous waste into the pretreatment system at Proctor's Creek, haulers are required to obtain a Wastewater Hauler Discharge Permit, in advance, from the Utilities Department Pretreatment Section. To receive a permit, a waste hauler must be registered and have a public health license with the Virginia Health Department and complete the waste hauler discharge permit application (PDF).
Samples and Testing
The detailed manifests must be provided with each load to track the origin of the waste. Samples of the hauled waste are routinely taken to identify any pollutants that could potentially interfere with the treatment process. On a regular basis, pH measurements are also conducted to determine if waste pH is within the county's limits (5.0 to 12.0 S.U.). (pH is a measure of the acidity or alkalinity of a substance; range is from 0 to 14, increasing with increasing alkalinity and decreasing with increasing acidity.)
Waste Hauler Discharge Standards
Drivers are responsible for collecting waste generated within Chesterfield County only. Pickup of waste from any locality other than Chesterfield County followed by discharge into Proctor's Creek is illegal, resulting in issuance of a notice of violation to the hauler's employer. Waste haulers must comply with prohibited discharge standards.
Pretreatment Awards and Recognition
Each year, the Pretreatment Program recognizes the industries for their compliance records. The award winners are presented with certificates and reduced self-monitoring requirements at the Annual Pretreatment Meeting.
At the 28th annual pretreatment meeting on Oct, 4, 2023, awards were presented to twenty-one local businesses for their contributions to protecting the environment. View the Industrial Pretreatment Award 2023 Winners (PDF).
From left: George Hayes, Chesterfield County; Kevin Crown, Honeywell International, Inc.; Kim Taylor, Heartland Express, Inc.; Jeff Rybczynski, Hill Phoenix, Inc.; Brandon Pardoe, Abilene Motor Express; Jen Dinant, Alsco, Inc.; Abha Sharma, Chesterfield County; Mitch Mills, Abilene Motor Express; James Jones, Fiorucci Foods; Sarah Morgan, Advansix, Inc.; Henry Black, Advansix, Inc.; Hunter Haydt, Sabra Dipping Company; Daniel Winburne, Advansix, Inc; Greg Hunt, Church and Dwight, Inc; James Baucom, Sabra Dipping Company; Adam Berry, Defense Supply Center Richmond; Katy Yeatts, MGC Advanced Polymers, Inc.; Jon Blair, MGC Advanced Polymers, Inc.; Zach Taylor, Novelis ALR Rolled Products; Eden Jackson, Ukrop’s Homestyle Foods, LLC; Matt Rembold, Chesterfield County; Mark Ivanhoe, Ukrop’s Homestyle Foods, LLC; Ismael Ortiz, MGC Advanced Polymers, Inc.
For achieving exemplary compliance with all pretreatment requirements and for having received no violations or warnings for five or more consecutive years, the following industries received the Platinum Award:
- AdvanSix Resins and Chemicals, LLC
- Campofrio Food Group America, Inc.
- Defense Supply Center Richmond
- Evoqua Water Technologies, LLC
- GFL Environmental, Inc. - Vehicle Washing Facility
- Hill Phoenix, Inc. - Site II
- Honeywell International, Inc.
- MGC Advanced Polymers, Inc.
- Taylor Road Construction and Demolition Debris Landfill
For achieving exemplary compliance with all pretreatment requirements and for having received no violations or warnings during the year, the following industries received the Gold Award:
- Abilene Motor Express, Inc.
- Alsco, Inc.
- Cintas Corporation
- Heartland Express, Inc.
- Maruchan Virginia, Inc.
- Niagara Bottling, LLC
- Novelis ALR Rolled Products, Inc.
- Truck Enterprises Richmond, Inc.
- Ukrop’s Homestyle foods, LLC
- WB Waste Solutions, LLC - Skinquarter Landfill
For achieving exemplary compliance with all pretreatment requirements and for having received only one written warning during the year, the following industries received the Silver Award:
- Excel Truck Group
- Hill Phoenix, Inc. - Site I
George B. HayesDirector of Utilities
9840 Government Center Parkway
Chesterfield, VA 23832
9840 Government Center Parkway Chesterfield VA 23832
P.O. Box 608
Chesterfield, VA 23832-0009
Phone 804-748-1271Fax 804-751-4607
Monday - Friday
8:30 a.m. - 5 p.m.
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