Pretreatment Profile

In 1981, North Olmsted implemented a Municipal Industrial Pretreatment Program (MIPP) per Federal and State Environmental Protection Agency requirements.  This program is under the direction of the Wastewater Treatment Plant Superintendent and is implemented by sufficient personnel committed to carrying out the activities of such a program.

The program is based on identification and classification of industrial and commercial facilities into one of three general categories: industrial users (IUs), significant industrial users (SIU), categorical industrial users (CIUs).

  • CIUs are defined as an industrial user subject to national categorical pretreatment standards.
  • SIUs are defined as users subject to categorical pretreatment standards under 40 CFR 403.6 and 40 CFR chapter I, subchapter N, except for those designated as NSCIUs. This includes, IU that discharges an average of 25,000 gallons per day or more of process wastewater to the publicly owned treatment works (POTW) (excluding sanitary, noncontact cooling, and boiler blowdown wastewater); or contributes a process waste stream that makes up 5 % or more of the average dry weather hydraulic or organic capacity of the POTW; or is designated as such by the POTW on the basis that the SIU has a reasonable potential for adversely affecting the POTW’s operation.
  • IUs also called non-significant industrial users, may also be regulated if their discharge has a responsible potential to upset the treatment plant, prevent the conveyance of wastewater to the treatment plant or causes an exceedance of the wastewaters plant’s NPDES permit.

Additional information on the Pretreatment program can be found in The City of North Olmsted Ordinances 911, 913, and 917; or US EPA’s website at:

The pretreatment program provides the City of North Olmsted an efficient monitoring and enforcement tool that is used to protect the City’s sewer system, treatment plant, their workers and the surrounding environment from injury and/or disruption of biological processes caused by deleterious materials.

Public Notification

THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGULATION along with OHIO ENVIRONMENTAL PROTECTION AGENCY, under the authority of 40 C.F.R. 403.8(f) (2) (vii), require all approved pretreatment programs to publish annually the names of all industrial users in Significant Non-Compliance (SNC) with pretreatment standards and other requirements during the preceding year/period.

Companies deemed to be in Significant Noncompliance (SNC) are industries that have violated a Federal, State, or Local limit/ordinance during the period of March 1, 2022, to February 28, 2023.

Listed in the index below is the name of any industry in Significant Noncompliance, a brief description of the violation, and the current status of the violation.

When a company is found to be in Significant Noncompliance (SNC), the City of North Olmsted offers free technical assistance to help the company return to compliance or begin to comply with local, state, and federal limits. As part of this assistance preset time limits are used so that compliance is achieved in the shortest possible time.

At the time of this report, a company listed for SNC may have made significant progress toward correcting the violation and may now be in compliance.

Significant Non-Compliance Criteria:

  • Violations of wastewater discharge limits, defined here as those in which 66% or more of all of the measurements taken during six months exceed (by any magnitude) a numerical Pretreatment Standard, Local Limit, or Requirement for the same pollutant parameter.
  • (2) Technical Review Criteria (TRC) violations, defined here as those in which 33% or more of all the measurements for each pollutant parameter taken during a six-month period equal or exceed the product of a numerical Pretreatment Standard or Requirement multiplied by the applicable TRC value (TRC = 1.4 for BOD, TSS, fats, oil, and grease and 1.2 for all other pollutants except pH).
  • (3) Any other violation of a pretreatment effluent limit (daily maximum or long-term average) that the Commission determines has caused, alone or in combination with other discharges, interference, or pass-through (including endangering the health of commissioned personnel or the general public).
  • (4) Any discharges of a pollutant that has caused imminent endangerment to human health, welfare, or the environment or has resulted in the commission’s exercise of its emergency authority to halt or prevent such a discharge.
  • (5) Failure to meet, within 90 days after the scheduled date, a compliance milestone contained in a Commission notification, permit, or enforcement order, for starting construction, completing construction, or attaining final compliance.
  • (6) Failure to provide, within 30 days after the due date, required reports such as baseline monitoring reports, 90-day compliance reports, self-monitoring compliance reports, and reports on compliance with compliance schedules
  • (7) Failure to accurately report noncompliance
  • (8) Any other violation or group of violations that the Commission/Pretreatment Authority determines, has adversely affected the operation or implementation of the Industrial Pretreatment Program.

2021 Pretreatment Notice of Violation and Significant Non-compliance List

Company Name               Violations Cited Present Status
Chipotle Failure to produce records Resolved



5200 Dover Center Road
North Olmsted, OH 44070

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