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Metropolitan Water Reclamation District of Greater Chicago

The Pretreatment and Cost Recovery (PTCR) group in the Monitoring and Research Department monitors and regulates industrial facilities to the MWRD's collection systems to ensure compliance with environmental regulations detailed in its Sewage and Waste Control Ordinance and currently has more than 300 permits issued to significant industrial users.

The MWRD maintains a list of Significant Industrial Users available for download.

Report a Spill, Malfunction, Bypass, or Slug Discharge

Article V, Section 15 of the Sewage and Waste Control Ordinance.

Facilities within the MWRD's service area are required to notify the PTCR group by phone within 1 hour of becoming aware of a spill, treatment system malfunction, bypass, or slug discharge into the public sewer. 

We recommend immediately following up with an email to mwrd-ucts@mwrd.org after your call to confirm details.

Within 5 calendar days of the event, a written notification must be submitted to the MWRD, explaining the incident and corrective measures to prevent a recurrence. 

Failure to follow these steps constitutes significant noncompliance with the MWRD's Ordinance and will be handled accordingly. 

Article V, Section 8 of the Sewage and Waste Control Ordinance

Facilities within the MWRD's service area are required to notify the PTCR group by phone within 24 hours of becoming aware of an effluent (wastewater) violation related to the Sewage and Waste Control Ordinance. This is most often a violation of a pollutant limit found in Appendices A or B, or as part of their Discharge Authorization permit. 

  • Call 312-751-3044 or your facility account contact (see the phone list) between the hours of 8:45 am and 4:30 pm.
  • Immediately follow up with an email to mwrd-ucts@mwrd.org after your call to confirm details. If your analytical report that documents the violation is available, attach it to the email.

Regardless if the final analytical report shows a violation or not, you are required to report applicable data to the MWRD as soon as it is available. This should be with your facility account contact and the analytical report. At that time, the MWRD will review all applicable data and determine if enforcement action will be taken.

Failure to follow these steps constitutes significant noncompliance with the MWRD's Ordinance and will be handled accordingly. 

Appendix C, Article I, Section 4 of the Sewage and Waste Control Ordinance

Significant Industrial Users are required to monitor their wastewater and report the analytical results twice per year. Below are the monitoring periods and corresponding report due dates. A facility's Discharge Authorization permit specifies the report due dates under Special Condition 2: Monitoring Requirements.

40 CFR

Industrial Category

Monitoring Period

First Report

Monitoring Period

Second Report

403

Non-Categorical

12/1 - 5/31

6/1

6/1 - 11/30

12/1

413

Electroplating

10/1 - 3/31

4/27

4/1 - 9/30

10/27

414

Organic Chemicals, Plastics, Synthetic Fibers

11/1 - 4/30

5/5

5/1 - 10/31

11/5

415

Inorganic Chemicals Manufacturing

8/1 - 1/31

2/12

2/1 - 7/31

8/12

417

Soap and Detergent Manufacturing

12/1 - 5/31

6/10

6/1 - 11/30

12/10

419

Petroleum Refining

12/1 - 5/31

6/1

6/1 - 11/30

12/1

420

Iron and Steel Manufacturing

7/1 - 12/31

1/10

1/1 - 6/30

7/10

421

Nonferrous Metals Manufacturing

9/1 - 2/28

3/8

3/1 - 8/31

9/8

425

Leather Tanning and Finishing

11/1 - 4/30

5/25

5/1 - 10/31

11/25

430

Pulp, Paper, and Paperboard

7/1 - 12/31

1/1

1/1 - 6/30

7/1

433

Metal Finishing

8/1 - 1/31

2/15

2/1 - 7/31

8/15

437

Centralized Waste Treatment

12/1 - 5/31

6/22

6/1 - 11/30

12/22

439

Pharmaceutical

10/1 - 3/31

4/27

4/1 - 9/30

10/27

442

Transportation Equipment Cleaning

8/1 - 1/31

2/14

2/1 - 7/31

8/14

455

Pesticide Chemicals

10/1 - 3/31

4/4

4/1 - 9/30

10/4

463

Plastic Molding and Forming

7/1 - 12/31

1/30

1/1 - 6/30

7/30

464

Metal Molding and Casting

10/1 - 3/31

4/30

4/1 - 9/30

10/30

465

Coil Coating

12/1 - 5/31

6/1

6/1 - 11/30

12/1

468

Copper Forming

8/1 - 1/31

2/15

2/1 - 7/31

8/15

469

Electrical and Electronic Components

7/1 - 12/31

1/14

1/1 - 6/30

7/14

Appendix B, Section 1 of the Sewage and Waste Control Ordinance.

The following are the maximum concentrations acceptable for discharge of sewage, industrial wastes, or other wastes into sewerage systems under the jurisdiction of the MWRD at any time:

Pollutant

Effluent Limit

Cadmium

2.0 mg/L

Chromium (total)

25.0 mg/L

Chromium (hexavalent)

10.0 mg/L

Copper

3.0 mg/L

Cyanide (total)

5.0 mg/L

Fats, Oils, and Greases (total)

250.0 mg/L

Iron

250.0 mg/L

Lead

0.5 mg/L

Mercury

0.0025 mg/L (grab)

0.001 mg/L (daily composite)

0.0005 mg/L (monthly average)

Nickel

10.0 mg/L

Zinc

15.0 mg/L

pH

Minimum 5.0

Maximum 10.0

Temperature

150oF (66oC)

 

Noncompliance Enforcement (NCE) Charges

Appendix F, Section I of the Sewage and Waste Control Ordinance

Enforcement Action Level

Charge

Notice of Noncompliance

$2,500

Cease & Desist Order

$5,000

Cease & Desist Order (Recurring)

$10,000

Cease & Desist Order (Reporting Requirements)

$1,000

Amendment to a Cease & Desist Order

$500

Show Cause or Legal Action

To be addressed in resolution of the enforcement action

Late Filing of Reports

Article V, Section 10 of the Sewage and Waste Control Ordinance

Number of Days Late

Fee

Less than 15 calendar days

$100

15 to 45 calendar days

$500

Greater than 45 calendar days

$1,000

 

Appendix E of the User Charge Ordinance

Facilities subject to the Sewage and Waste Control Ordinance and issued a Discharge Authorization permit are assessed an administrative charge each year with their User Charge Certified Statement (RD-925) for annual account administration and review of mandatory reports, and charges for annual inspection and monitoring. 

The MPR administrative charges are:

Annual Flow Volume (gallons)

Charge

<1,296,760

$1,050

1,296,761 to 3,475,200

$2,100

3,478,201 to 6,036,040

$4,200

6,036,041 to 10,464,520

$6,300

10,464,521 to 18,613,980

$8,400

18,613,981 to 28,329,770

$10,500

28,329,771 to 56,498,000

$12,600

>56,498,001

$14,700

Activity

Charge

Inspection

$420

Each sample point specified in the Discharge Authorization

$630

The Dental Amalgam Rule (40 CFR 441) is a categorical standard in the USEPA’s Pretreatment Program requiring dental offices to report use and pretreatment of dental amalgam. The USEPA finalized technology-based pretreatment standards under the Clean Water Act (CWA) to reduce discharges of mercury and other metals from dental offices into publicly owned treatment works (POTWs). The new CWA regulation became active in 2017. For more information, visit the USEPA's Dental Effluent Guidelines webpage. 

The MWRD, as the local POTW and control authority, is required to enforce these regulations within its service area. If you are a dental office, you are required to file a Dental Amalgam Compliance Report

If you have any questions, please contact MWRD at 312-751-3044 or at DentalAmalgam@mwrd.org.