Industrial / Commercial Building Sewer Services

Setting Up Service

Starting a New Business

Industrial/Commercial Applications are required for new industrial or commercial enterprises for all usage types, as well as for any business or industry that will have a change of use, extra flow or a process modification from its current condition. All residential buildings with five (5) or more units also must submit an application. Plumbers, businesses, and consultants frequently request a copy of the I/C Permit Process flowchart to guide them through the steps and requirements. 

The Sampling Manhole Form, which is necessary for specific types of industrial and other companies, is a complement to this application. Inspection, sampling, and wastewater flow measurement are all possible with the use of sample manholes. This form is an important part of the standard service connection permit process and can be found in the I/C Permit Application Packet. Please contact Four Rivers Engineering or dial 815-387-7660.

Redeveloping or Opening a Business on An Existing Property

BUSINESSFirst is a partnership between the City of Rockford, Winnebago County government, the Winnebago County Health Department, the Small Business Development Center, and Four Rivers Sanitation Authority that helps people rebuild or start new businesses in existing properties. 

Go to BUSINESSFirst to meet with all of these partners in one place at the same time.

Pretreatment Program

A comprehensive pretreatment program was mandated by the Clean Water Act of 1972 to limit industrial emissions into public sewage systems. These initiatives are required to avoid significant issues that may arise as a result of the discharge of hazardous industrial pollutants into our environment. To fulfill federal requirements and protect Four Rivers’ collection system and treatment facilities, Industrial Waste Surveillance (IWS) runs a federally certified pretreatment program. Those starting a new business or making changes to their current business plans must meet the conditions as appropriate to their industry. Required IWS permitting forms and requirements can be found in Forms & Permits. If you have further questions, call 815-387-7640 or send an email to Industrial Waste Surveillance

Report an Issue or Emergency

To Report an Industrial spill or accidental discharge Four Rivers should be notified immediately by telephone at (815) 387-7455 (38-SPILL). Industrial Users reporting a spill or accidental discharge are also required to complete the Accidental Spill Report form within five (5) days of the spill. The completed form can be sent to