Compliance Assistance Unit

Our experts work alongside local wastewater treatment staff to help identify performance-limiting factors and implement cheap, easy and effective solutions.


Established by Section 104(g)(1) of the Federal Clean Water Act, the three Compliance Assistance Unit (CAU) members help to bring wastewater treatment plant (WWTP) facilities into compliance and/or to maintain compliance. Our goal is to improve the water quality of our streams, rivers, and lakes by assisting WWTPs that need help in meeting their National Pollutant Discharge Elimination System (NPDES) permits.

The CAU seldom works without total commitment from community officials. In order to achieve success, we need the same level of commitment from everyone involved: village administrators, superintendents, plant operators, etc.

By utilizing the services of the CAU, many communities have saved money and are operating in compliance at the same time. In many cases, the cost for compliance is also more economical than paying a penalty for noncompliance. Implementing preventive maintenance programs and identifying energy savings are the methods most used to reach a cost-effective end result.

If you are in need of our assistance or have any questions, please contact Jon Bernstein at (614) 644-3715 or by email at:

We travel all over Ohio helping WWTPs identify their performance limiting factors and create cost-effective solutions to bring them back into compliance. We are committed to helping small communities who need assistance achieving compliance with their NPDES permit requirements. Some of the services we provide include:

  • Perform plant performance evaluations to identify causes of compliance issues such as plant design, plant operation, administrative issues, etc.
  • Troubleshoot complex plant problems
  • Create innovative and cost effective solutions for improving plant performance
  • Onsite training of personnel in process control procedures such as sludge wasting and return rates, mixed liquor concentrations, and dissolved aeration tank oxygen levels
  • Help improve sludge handling and disposal procedures
  • Teach operators more effective methods of process control
  • Investigate concerns over industrial dischargers to the system
  • Determine current plant loadings and capacities
  • Help formulate and implement a preventive maintenance program
  • Help facilitate in Inflow & Infiltration evaluation of sewer system
  • Review/evaluate new treatment technologies
  • Provide training presentations at wastewater trade seminars and workshops
Compliance Assistance Unit Info Card

Vacant Supervisor


Van Dommelen, Jon
Environmental Specialist
(614) 644-2011
Smith, Richard
Environmental Specialist
(614) 644-2533