Text

National Pollutant Discharge Elimination System (NPDES) Permit Renewal
	ML18298A179
Person / Time
Site:	Fermi
Issue date:	10/25/2018
From:	Maglio S; DTE Electric Company, DTE Energy
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	MI0037028, NRC-18-0053
	Download: ML18298A179 (50)
	v • d • e

DTE Energy Company 6400 North Dixie Highway Newport, MI 48166 DTE Energy October 25, 2018 NRC-18-0053 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Fermi 2 Power Plant NRC Docket No. 50-341 NRC License No. NPF-43

Subject:

National Pollutant Discharge Elimination System (NPDES) Permit Renewal In accordance with Section 3.2 of the Environmental Protection Plan, Appendix B to the renewed Fermi 2 Facility Operating License NPF-43, enclosed is a copy of the renewed Fermi 2 National Pollutant Discharge Elimination System (NPDES) permit number MI0037028 issued by the Michigan Department of Environmental Quality (MDEQ). The NPDES permit was issued on September 27, 2018 and takes effect on November 1, 2018.

No new commitments are being made in this submittal.

Should you have any questions, please contact me at (734) 586-5076.

Sincerely, oot\ A.A Scott A. MagV Manager - Nuclear Licensing

Enclosure:

NPDES Permit Number MI0037028

USNRC NRC-18-0053 Page 2 cc: NRC Project Manager NRC Resident Office Reactor Projects Chief, Branch 5, Region III Regional Administrator, Region III Michigan Public Service Commission Regulated Energy Division (kindschl@michigan.gov) [w/o Enclosure]

Enclosure to NRC-18-0053 Fermi 2 NRC Docket No. 50-341 Operating License No. NPF-43 National Pollutant Discharge Elimination System (NPDES)

Permit Number MI0037028

PERMIT NO. MI0037028 STATE OF MICHIGAN DEPARTMENT OF ENVIRONMENTAL QUALITY AUTHORIZATION TO DISCHARGE UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provisions of the Federal Water Pollution Control Act (33 U.S.C. 1251 et seq., as amended; the "Federal Act"); Part 31, Water Resources Protection, of the Natural Resources and Environmental Protection Act, 1994 PA 451, as amended (NREPA); Part 41, Sewerage Systems, of the NREPA; and Michigan Executive Order 2011-1, DTE Electric Company One Energy Plaza Detroit MI, 48226 is authorized to discharge from the Fermi-2 Power Plant located at 6400 North Dixie Highway Newport, MI 48166 designated as DECO-Fermi-2 Plt to the receiving waters named Lake Erie and Swan Creek in accordance with effluent limitations, monitoring requirements, and other conditions set forth in this permit.

This permit is based on a complete application submitted on December 5, 2014, as amended through March 29, 2018.

This permit takes effect on November 1, 2018. The provisions of this permit are severable. After notice and opportunity for a hearing, this permit may be modified, suspended, or revoked in whole or in part during its term in accordance with applicable laws and rules. On its effective date this permit shall supersede NPDES Permit No. MI0037028, expiring October 1, 2014.

This permit and the authorization to discharge shall expire at midnight, October 1, 2022. In order to receive authorization to discharge beyond the date of expiration, the permittee shall submit an application which contains such information, forms, and fees as are required by the Department of Environmental Quality (Department) by April 4, 2022.

Issued: September 27, 2018 Original signed by Christine Alexander Christine Alexander, Manager Permits Section Water Resources Division

PERMIT NO. MI0037028 Page 2 of 47 PERMIT FEE REQUIREMENTS In accordance with Section 324.3120 of the NREPA, the permittee shall make payment of an annual permit fee to the Department for each October 1 the permit is in effect regardless of occurrence of discharge. The permittee shall submit the fee in response to the Department's annual notice. The fee shall be postmarked by January 15 for notices mailed by December 1. The fee is due no later than 45 days after receiving the notice for notices mailed after December 1.

Annual Permit Fee Classification: Industrial-Commercial Major In accordance with Section 324.3118 of the NREPA, the permittee shall make payment of an annual storm water fee to the Department for each January 1 the permit is in effect regardless of occurrence of discharge. The permittee shall submit the fee in response to the Department's annual notice. The fee shall be postmarked by March 15 for notices mailed by February 1. The fee is due no later than 45 days after receiving the notice for notices mailed after February 1.

CONTACT INFORMATION Unless specified otherwise, all contact with the Department required by this permit shall be made to the Jackson District Office of the Water Resources Division. The Jackson District Office is located at 301 East Louis Glick Highway, Jackson, MI 49201-1535, Telephone: 517-780-7690, Fax: 517-780-7855.

CONTESTED CASE INFORMATION Any person who is aggrieved by this permit may file a sworn petition with the Michigan Administrative Hearing System within the Michigan Department of Licensing and Regulatory Affairs, c/o the Michigan Department of Environmental Quality, setting forth the conditions of the permit which are being challenged and specifying the grounds for the challenge. The Department of Licensing and Regulatory Affairs may reject any petition filed more than 60 days after issuance as being untimely.

PERMIT NO. MI0037028 Page 3 of 47 PART I Section A. Limitations and Monitoring Requirements

1. Final Effluent Limitations, Monitoring Point 001A During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the permittee is authorized to discharge a maximum of 45.1 MGD of cooling tower blowdown, processed radwaste wastewater, residual heat removal system service water, and treated chemical and nonchemical metal cleaning wastewater from Monitoring Point 001A through Outfall 001. Outfall 001 discharges to Lake Erie at Latitude 41.96485, Longitude -83.25448. Such discharge shall be limited and monitored by the permittee as specified below.

Maximum Limits for Maximum Limits for Quantity or Loading Quality or Concentration Monitoring Sample Parameter Monthly Daily Units Monthly Daily Units Frequency Type Flow (report) (report) MGD --- --- --- Daily Report Total Daily Flow Temperature Intake --- --- --- --- (report) °F Daily Reading Discharge --- --- --- --- (report) °F Daily Reading Total Residual Chlorine (TRC) --- --- --- --- 38 ug/l 5x Weekly Grab Total Phosphorus 380 (report) lbs/day 1.0 (report) mg/l Monthly Grab-Composite Total Copper --- 15 lbs/day --- 40 ug/l Monthly Grab-Composite Outfall Observation (report) --- --- --- --- --- Daily Visual Minimum Daily pH --- --- --- 6.5 9.0 S.U. Weekly Grab

a. Narrative Standard The receiving water shall contain no turbidity, color, oil films, floating solids, foams, settleable solids, or deposits as a result of this discharge in unnatural quantities which are or may become injurious to any designated use.

b. Monitoring Location Samples, measurements, and observations taken in compliance with the monitoring requirements above shall be taken prior to discharge to Lake Erie. The sample for intake temperature shall be taken before the intake water enters the power plant.

c. Outfall Observation Outfall observation shall be reported as yes or no. The permittee shall report yes if this requirement was completed and no if this requirement was not completed. Any unusual characteristics of the discharge (i.e.,

unnatural turbidity, color, oil film, floating solids, foams, settleable solids, suspended solids, or deposits) shall be reported within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to the Department followed with a written report within five (5) days detailing the findings of the investigation and the steps taken to correct the condition.

d. Water Treatment Additives This permit does not authorize the discharge of water treatment additives without approval. Approval of water treatment additives is authorized under separate correspondence. Water treatment additives include any material that is added to water used at the facility or to a wastewater generated by the facility to condition or treat the water. In the event a permittee proposes to discharge water treatment additives, including an increased discharge concentration of a previously approved water treatment additive, the permittee shall submit a request for approval in accordance with Part I.A.9. of this permit.

PERMIT NO. MI0037028 Page 4 of 47

e. Monitoring Frequency Reduction for Total Copper After the submittal of 12 months of data, the permittee may request, in writing, Department approval for a reduction in monitoring frequency for total copper. This request shall contain an explanation as to why the reduced monitoring is appropriate. Upon receipt of written approval and consistent with such approval, the permittee may reduce the monitoring frequency indicated in Part I.A.1. of this permit. The monitoring frequency for total copper shall not be reduced to less than quarterly. The Department may revoke the approval for reduced monitoring at any time upon notification to the permittee.

f. Monitoring Frequency Reduction for Total Phosphorus At any time, the permittee may request, in writing, Department approval for a reduction in monitoring frequency for total phosphorus. This request shall contain an explanation as to why the reduced monitoring is appropriate, and confirmation that no water treatment additives containing phosphorus are being used that might impact the discharge from outfall 001. Upon receipt of written approval and consistent with such approval, the permittee may reduce the monitoring frequency indicated in Part I.A.1. of this permit. The monitoring frequency for total phosphorus shall not be reduced to less than quarterly. The Department may revoke the approval for reduced monitoring at any time upon notification to the permittee.

g. Total Residual Chlorine Requirements Total Residual Chlorine (TRC) shall be analyzed in accordance with Part II.B.2. of this permit. TRC monitoring is only required during chlorine use and subsequent discharge. For purposes of compliance with the TRC effluent limitation, a week shall be defined as a calendar week from Monday through Sunday. The permittee shall enter

G on the DMR when no chlorine is discharged. (For purposes of reporting on the Daily tab of the DMR, the permittee shall enter *G on the first day of the month only).

The permittee may use dechlorination techniques to achieve the applicable TRC limitations, using sodium thiosulfate, sodium sulfite, sodium bisulfite, or other dechlorinating reagents approved by the Department. The quantity of the reagent(s) used shall be limited to 0.6 times the stoichiometric amount of TRC for sodium thiosulfate, 1.5 times the stoichiometric amount of TRC for sodium bisulfite, and 1.8 times the stoichiometric amount of TRC for sodium sulfite. The TRC samples taken to determine the amount of each chemical to add shall be taken upstream of dechlorination.

h. Discharge of Radioactive Materials The Federal Nuclear Regulatory Commission provides the regulation of radioactive materials under the Fermi-2 Power Plants operation license.

i. Power Plants - PCB Prohibition The permittee shall not discharge any polychlorinated biphenyls to the receiving waters of the state of Michigan as a result of plant operations.

j. Grab-Composite Samples A grab-composite sample shall be defined as a composite of grab samples taken every four (4) hours during the discharge event.

PERMIT NO. MI0037028 Page 5 of 47

2. Final Effluent Limitations, Monitoring Point 001B During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the permittee is authorized to discharge a maximum of 1.44 MGD of residual heat removal system service water from Monitoring Point 001B through Outfall 001. Outfall 001 discharges to Lake Erie at Latitude 41.96485, Longitude -83.25448. Such discharge shall be limited and monitored by the permittee as specified below.

Maximum Limits for Maximum Limits for Quantity or Loading Quality or Concentration Monitoring Sample Parameter Monthly Daily Units Monthly Daily Units Frequency Type Flow (report) (report) MGD --- --- --- Daily Report Total Daily Flow Spectrus CT-1300 (see b. below) --- --- --- --- <50 ug/l See b. below Grab

a. Monitoring Location Samples, measurements, and observations taken in compliance with the monitoring requirements above shall be taken prior to mixing with other waste streams.

b. Zebra Mussel Control Requirements The application of Spectrus CT-1300 is restricted to the Residual Heat Removal Service Water (RHRSW) system. Direct application of Spectrus CT-1300 to the Circulating Water System (CWS) is prohibited. The discharge of Spectrus CT-1300 from monitoring point 001B to monitoring point 001A is restricted to no more than six (6) times per year, and only when the concentration of Spectrus CT-1300 in the RHRSW system is less than 50 ug/l. The discharge of Spectrus CT-1300 from monitoring point 001B to monitoring point 001A is prohibited when the concentration of Spectrus CT-1300 in the RHRSW system is greater than or equal to 50 ug/l. Any discharge of Spectrus CT-1300 from monitoring point 001B to monitoring point 001A at or above 50 ug/l is a specific violation of this permit.

Samples for Spectrus CT-1300 shall be taken from both divisions of the RHRSW reservoir prior to mixing with other waste streams and prior to discharge to the CWS. The sampling procedures, preservation and handling, and analytical protocol for compliance monitoring of Spectrus CT-1300 shall be in accordance with the Orange II/Methylene Chloride Method unless an alternate method is approved by the Department. The quantification level shall not exceed 50 ug/l, unless higher levels are appropriate because of sample matrix interference.

Justification for higher quantification levels shall be submitted to the Department within 30 days of such determination. A discharge event shall be defined as the first discharge commencing after an application of Spectrus CT-1300 and prior to a subsequent application of Spectrus CT-1300. Results less than the quantification level shall be reported as < the quantification level. The permittee shall enter *G on the DMR when Spectrus CT-1300 is not being applied. (For purposes of reporting on the Daily tab of the DMR, the permittee shall enter *G on the first day of the month only).

The water quality-based effluent limitation for Spectrus CT-1300 is 15 ug/l, which is less than the quantification level of 50 ug/l. The permittee has demonstrated to the Department, through mass-balance calculation received as part of the procedure entitled Fermi 2 Zebra Mussel Control Using CT-1300, dated March 29, 2018, that this final effluent limitation will be met at monitoring point 001A. Within 14 days of a discharge of Spectrus CT-1300 from monitoring point 001B to monitoring point 001A at a concentration that exceeds this mass-balance, the permittee shall notify the Department and submit a revised mass-balance.

If the Department determines that a mass-balance demonstration is no longer allowable, then upon written notification from the Department, the following conditions apply: The permittee shall conduct 48-hour acute toxicity testing using a Daphnia species of the monitoring point 001A effluent to verify that adequate detoxification of Spectrus CT-1300 has been achieved in the CWS effluent prior to discharge via Outfall 001.

Acute toxicity testing shall be conducted during each treatment with Spectrus CT-1300. Acute toxicity testing shall be conducted using procedures contained in EPA-821-R-02-012, Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms (Fifth Edition). The results of this acute toxicity testing shall be submitted to the Department within 30 days of testing during each treatment.

If the results of acute toxicity testing do not exceed 1.0 acute toxic units (TUA), and if all samples from monitoring point 001B collected during the monthly reporting period are less than the quantification level for

PERMIT NO. MI0037028 Page 6 of 47 Spectrus CT-1300, the Department will consider the permittee to be in compliance with the final effluent limitation for this pollutant for the reporting period in question.

On or before April 4, 2022, with the application for reissuance, the permittee shall submit any revisions to its procedure entitled Fermi 2 Zebra Mussel Control Using CT-1300, dated March 29, 2018, or if no such revisions have been made, the permittee shall submit a written statement certifying to this.

3. Final Effluent Limitations, Monitoring Point 001D During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the permittee is authorized to discharge a maximum of 0.216 MGD of processed radwaste wastewater from Monitoring Point 001D through Outfall 001. Outfall 001 discharges to Lake Erie at Latitude 41.96485, Longitude -83.25448. Such discharge shall be limited and monitored by the permittee as specified below.

Maximum Limits for Maximum Limits for Quantity or Loading Quality or Concentration Monitoring Sample Parameter Monthly Daily Units Monthly Daily Units Frequency Type Flow (report) (report) MGD --- --- --- Daily Report Total Daily Flow Total Suspended Solids --- --- --- 30 100 mg/l Weekly Grab Oil & Grease --- --- --- 15 20 mg/l 2x Monthly Grab

a. Monitoring Location Samples, measurements, and observations taken in compliance with the monitoring requirements above shall be taken prior to mixing with other waste streams.

4. Final Effluent Limitations, Monitoring Point 001E During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the permittee is authorized to discharge a maximum of 0.5 MGD of treated chemical and nonchemical metal cleaning wastewater from Monitoring Point 001E through and Outfall 001. Outfall 001 discharges to Lake Erie at Latitude 41.96485, Longitude -83.25448. Such discharge shall be limited and monitored by the permittee as specified below.

Maximum Limits for Maximum Limits for Quantity or Loading Quality or Concentration Monitoring Sample Parameter Monthly Daily Units Monthly Daily Units Frequency Type Flow (report) (report) MGD --- --- --- Daily Report Total Daily Flow Total Suspended Solids --- --- --- 30 100 mg/l Weekly Grab Oil & Grease --- --- --- 15 20 mg/l 2x Monthly Grab Total Copper --- --- --- --- 1.0 mg/l Daily Grab-Composite Total Iron --- --- --- --- 1.0 mg/l Daily Grab-Composite

a. Monitoring Location Samples, measurements, and observations taken in compliance with the monitoring requirements above shall be taken prior to mixing with other waste streams.

PERMIT NO. MI0037028 Page 7 of 47

b. Monitoring Requirements for Chemical Metal Cleaning Wastewater The monitoring requirements and effluent limits for total copper and total iron apply only to, and during the discharge of, chemical metal cleaning wastewater. Compliance monitoring and sampling for chemical metal cleaning wastewater shall be conducted prior to mixing with other waste streams. Chemical metal cleaning wastewater shall be monitored during each discharge of this wastewater type. The sample type shall be a composite sample consisting of grab samples taken at four-hour intervals during the discharge period. These samples shall be combined prior to analysis to form a representative sample of the discharge. The permittee shall enter "*G" on the DMR for total copper and total iron when chemical metal cleaning wastes are not present.

(For purposes of reporting on the Daily tab of the DMR, the permittee shall enter *G on the first day of the month only).

5. Final Effluent Limitations, Monitoring Point 009A During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the permittee is authorized to discharge a maximum of 0.72 MGD of low volume wastewater and treated chemical and nonchemical metal cleaning wastewater, and an unspecified amount of storm water from Monitoring Point 009A through Outfall 009. Outfall 009 discharges to Swan Creek via an overflow canal at Latitude 41.96222, Longitude -83.25806. Such discharge shall be limited and monitored by the permittee as specified below.

Maximum Limits for Maximum Limits for Quantity or Loading Quality or Concentration Monitoring Sample Parameter Monthly Daily Units Monthly Daily Units Frequency Type Flow (report) (report) MGD --- --- --- Daily Report Total Daily Flow Total Suspended Solids --- --- --- 30 100 mg/l Daily Grab Oil & Grease --- --- --- 15 20 mg/l Daily Grab Total Copper 0.18 (report) lbs/day 30 (report) ug/l Monthly Grab-Composite Total Iron (see f. below) --- --- --- --- 1.0 mg/l Daily Grab-Composite Total Residual Chlorine (TRC) --- --- --- --- 38 ug/l Daily Grab Total Phosphorus 6.0 (report) lbs/day 1.0 (report) mg/l Weekly Grab-Composite Available Cyanide 0.03 (report) lbs/day 5.2 (report) ug/l Monthly Grab Outfall Observation (report) --- --- --- --- --- Daily Visual Minimum Daily pH --- --- --- 6.5 9.0 S.U. Daily Grab

a. Narrative Standard The receiving water shall contain no turbidity, color, oil films, floating solids, foams, settleable solids, or deposits as a result of this discharge in unnatural quantities which are or may become injurious to any designated use.

b. Monitoring Location Samples, measurements, and observations taken in compliance with the monitoring requirements above shall be taken of the wastewaters other than storm water and prior to discharge to the overflow canal.

c. Outfall Observation Outfall observation shall be reported as yes or no. The permittee shall report yes if this requirement was completed and no if this requirement was not completed. Any unusual characteristics of the discharge (i.e.,

PERMIT NO. MI0037028 Page 8 of 47 unnatural turbidity, color, oil film, floating solids, foams, settleable solids, suspended solids, or deposits) shall be reported within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to the Department followed with a written report within five (5) days detailing the findings of the investigation and the steps taken to correct the condition.

d. Water Treatment Additives This permit does not authorize the discharge of water treatment additives without approval. Approval of water treatment additives is authorized under separate correspondence. Water treatment additives include any material that is added to water used at the facility or to a wastewater generated by the facility to condition or treat the water. In the event a permittee proposes to discharge water treatment additives, including an increased discharge concentration of a previously approved water treatment additive, the permittee shall submit a request for approval in accordance with Part I.A.9. of this permit.

e. Total Residual Chlorine Requirements Total Residual Chlorine (TRC) shall be analyzed in accordance with Part II.B.2. of this permit. TRC monitoring is only required if a discharge occurs within one (1) week of chlorine application. The permittee shall enter a *G on the DMR when no chlorine is discharged. (For purposes of reporting on the Daily tab of the DMR, the permittee shall enter *G on the first day of the month only).

The permittee may use dechlorination techniques to achieve the applicable TRC limitations, using sodium thiosulfate, sodium sulfite, sodium bisulfite, or other dechlorinating reagents approved by the Department. The quantity of the reagent(s) used shall be limited to 0.6 times the stoichiometric amount of TRC for sodium thiosulfate, 1.5 times the stoichiometric amount of TRC for sodium bisulfite, and 1.8 times the stoichiometric amount of TRC for sodium sulfite. The TRC samples taken to determine the amount of each chemical to add shall be taken upstream of dechlorination.

f. Monitoring Requirements for Chemical Metal Cleaning Wastewater The monitoring requirements and effluent limits for total iron apply only to, and during the discharge of, chemical metal cleaning wastewater. Compliance monitoring and sampling for chemical metal cleaning wastewater shall be conducted prior to mixing with other waste streams. Chemical metal cleaning wastewater shall be monitored during each discharge of this wastewater type. The sample type shall be a composite sample consisting of grab samples taken at four-hour intervals during the discharge period. These samples shall be combined prior to analysis to form a representative sample of the discharge. The permittee shall enter "*G" on the DMR for total iron when chemical metal cleaning wastewater is not present. (For purposes of reporting on the Daily tab of the DMR, the permittee shall enter *G on the first day of the month only).

g. Analytical Methods and Quantification Levels for Total Copper and Available Cyanide The sampling procedures, preservation and handling, and analytical protocol for compliance monitoring for total copper shall be in accordance with Part II.B.2. of this permit. The sampling procedures, preservation and handling, and analytical protocol for compliance monitoring for available cyanide shall be in accordance with EPA Method OIA-1677. The quantification levels for total copper and available cyanide shall be 1 ug/l and 2 ug/l, respectively, unless higher levels are appropriate because of sample matrix interference. Justification for higher quantification levels shall be submitted to the Department within 30 days of such determination. Upon approval from the Department, the permittee may use alternate analytical methods (for parameters with methods specified in 40 CFR 136, the alternate methods are restricted to those listed in 40 CFR 136).

h. Grab-Composite Samples A grab-composite sample shall be defined as a composite of grab samples taken every four (4) hours during the discharge event.

PERMIT NO. MI0037028 Page 9 of 47

6. Final Effluent Limitations, Monitoring Point 011A During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the permittee is authorized to discharge a maximum of 0.216 MGD of treated oily wastewater and an unspecified amount of service water screen backwash and storm water from Monitoring Point 011A through Outfall 011.

Outfall 011 discharges to Swan Creek via an overflow canal at Latitude 41.9625, Longitude -83.25833. Such discharge shall be limited and monitored by the permittee as specified below.

Maximum Limits for Maximum Limits for Quantity or Loading Quality or Concentration Monitoring Sample Parameter Monthly Daily Units Monthly Daily Units Frequency Type Flow (report) (report) MGD --- --- --- Daily Report Total Daily Flow Total Selenium --- --- --- --- (report) ug/l Quarterly 24-Hr Composite Outfall Observation (report) --- --- --- --- --- Daily Visual Total Mercury Corrected (report) (report) lbs/day (report) (report) ng/l Monthly Calculation Uncorrected --- --- --- --- (report) ng/l Monthly Grab Field Duplicate --- --- --- --- (report) ng/l Monthly Grab Field Blank --- --- --- --- (report) ng/l Monthly Preparation Laboratory Method Blank --- --- --- --- (report) ng/l Monthly Preparation 12-Month 12-Month Rolling Average Rolling Average Total Mercury 0.00005 --- lbs/day 27 --- ng/l Monthly Calculation Minimum Daily pH --- --- --- 6.5 9.0 S.U. Daily Grab

a. Narrative Standard The receiving water shall contain no turbidity, color, oil films, floating solids, foams, settleable solids, or deposits as a result of this discharge in unnatural quantities which are or may become injurious to any designated use.

b. Monitoring Location and Frequency Samples, measurements, and observations taken in compliance with the monitoring requirements above shall be taken prior to discharge to the overflow canal, and only during the discharge of treated oily wastewater from monitoring point 011C. The permittee shall enter "*G" on the DMR for all parameters when treated oily wastewater is not present. (For purposes of reporting on the Daily tab of the DMR, the permittee shall enter *G on the first day of the month only).

c. Outfall Observation Outfall observation shall be reported as yes or no. The permittee shall report yes if this requirement was completed and no if this requirement was not completed. Any unusual characteristics of the discharge (i.e.,

unnatural turbidity, color, oil film, floating solids, foams, settleable solids, suspended solids, or deposits) shall be reported within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to the Department followed with a written report within five (5) days detailing the findings of the investigation and the steps taken to correct the condition.

d. Quarterly Monitoring Quarterly samples shall be taken during the months of January, April, July, and October. If the facility does not discharge during these months, the permittee shall sample the next discharge occurring during that quarter. If the facility does not discharge during a quarter, a sample is not required for that quarter. For any month in which a sample is not taken, the permittee shall enter "*G" on the DMR. (For purposes of reporting on the Daily tab of the DMR, the permittee shall enter *G on the first day of the month only).

PERMIT NO. MI0037028 Page 10 of 47

e. Water Treatment Additives This permit does not authorize the discharge of water treatment additives without approval. Approval of water treatment additives is authorized under separate correspondence. Water treatment additives include any material that is added to water used at the facility or to a wastewater generated by the facility to condition or treat the water. In the event a permittee proposes to discharge water treatment additives, including an increased discharge concentration of a previously approved water treatment additive, the permittee shall submit a request for approval in accordance with Part I.A.9. of this permit.

f. Final Effluent Limitation for Total Mercury The final limit for total mercury is the Discharge Specific Level Currently Achievable (LCA) based on a multiple discharger variance from the water quality-based effluent limit of 1.3 ng/l, pursuant to Rule 323.1103(9) of the Water Quality Standards. Compliance with the LCA shall be determined as a 12-month rolling average, the calculation of which may be done using blank-corrected sample results. The 12-month rolling average shall be determined by adding the present monthly average result to the preceding 11 monthly average results then dividing the sum by 12. For facilities with quarterly monitoring requirements for total mercury, quarterly monitoring shall be equivalent to 3 months of monitoring in calculating the 12-month rolling average. Facilities that monitor more frequently than monthly for total mercury must determine the monthly average result, which is the sum of the results of all data obtained in a given month divided by the total number of samples taken, in order to calculate the 12-month rolling average. If the 12-month rolling average for any month is less than or equal to the LCA, the permittee will be considered to be in compliance for total mercury for that month, provided the permittee is also in full compliance with the Pollutant Minimization Program for Total Mercury, set forth in Part I.A.12.

After a minimum of 12 monthly data points have been collected, the permittee may request a reduction in the monitoring frequency for total mercury. This request shall contain an explanation as to why the reduced monitoring is appropriate and shall be submitted to the Department. Upon receipt of written approval and consistent with such approval, the permittee may reduce the monitoring frequency for total mercury indicated in Part I.A.6. of this permit. The Department may revoke the approval for reduced monitoring at any time upon notification to the permittee.

g. Total Mercury Testing and Additional Reporting Requirements The analytical protocol for total mercury shall be in accordance with EPA Method 1631, Revision E, "Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry." The quantification level for total mercury shall be 0.5 ng/l, unless a higher level is appropriate because of sample matrix interference. Justification for higher quantification levels shall be submitted to the Department within 30 days of such determination.

The use of clean technique sampling procedures is required unless the permittee can demonstrate to the Department that an alternative sampling procedure is representative of the discharge. Guidance for clean technique sampling is contained in: EPA Method 1669, Sampling Ambient Water for Trace Metals at EPA Water Quality Criteria Levels (Sampling Guidance), EPA-821-R96-001, July 1996. Information and data documenting the permittee's sampling and analytical protocols and data acceptability shall be submitted to the Department upon request.

In order to demonstrate compliance with EPA Method 1631E and EPA Method 1669, the permittee shall report, on the daily sheet, the analytical results of all field blanks and field duplicates collected in conjunction with each sampling event, as well as laboratory method blanks when used for blank correction. The permittee shall collect at least one (1) field blank and at least one (1) field duplicate per sampling event. If more than ten (10) samples are collected during a sampling event, the permittee shall collect at least one (1) additional field blank AND field duplicate for every ten (10) samples collected. Only field blanks or laboratory method blanks may be used to calculate a concentration lower than the actual sample analytical results (i.e., a blank correction). Only one (1) blank (field OR laboratory method) may be used for blank correction of a given sample result, and only if the blank meets the quality control acceptance criteria. If blank correction is not performed on a given sample analytical result, the permittee shall report under Total Mercury - Corrected the same value reported under Total Mercury - Uncorrected. The field duplicate is for quality control purposes only; its analytical result shall not be averaged with the sample result.

PERMIT NO. MI0037028 Page 11 of 47

h. Analytical Method and Quantification Level for Total Selenium The sampling procedures, preservation and handling, and analytical protocol for compliance monitoring for total selenium shall be in accordance with Part II.B.2. of this permit. The quantification level for total selenium shall be 1 ug/l unless a higher level is appropriate because of sample matrix interference. Justification for higher quantification levels shall be submitted to the Department within 30 days of such determination. Upon approval from the Department, the permittee may use alternate analytical methods (for parameters with methods specified in 40 CFR 136, the alternate methods are restricted to those listed in 40 CFR 136).

i. Monitoring Frequency Reduction for Total Selenium After the submittal of 12 months (four quarterly samples) of data, the permittee may request, in writing, Department approval of a reduction in monitoring frequency for total selenium. This request shall contain an explanation as to why the reduced monitoring is appropriate. Upon receipt of written approval and consistent with such approval, the permittee may reduce or eliminate the monitoring frequency indicated in Part I.A.6. of this permit. The Department may revoke the approval for reduced monitoring at any time upon notification to the permittee.

7. Final Effluent Limitations, Monitoring Point 011C During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the permittee is authorized to discharge a maximum of 0.216 MGD of treated oily wastewater from Monitoring Point 011C through Outfall 011. Outfall 011 discharges to Swan Creek via an overflow canal at Latitude 41.9625, Longitude -83.25833. Such discharge shall be limited and monitored by the permittee as specified below.

Maximum Limits for Maximum Limits for Quantity or Loading Quality or Concentration Monitoring Sample Parameter Monthly Daily Units Monthly Daily Units Frequency Type Flow (report) (report) MGD --- --- --- Daily Report Total Daily Flow Total Suspended Solids --- --- --- 30 100 mg/l Weekly Grab Oil & Grease --- --- --- 15 20 mg/l 2x Monthly Grab

a. Monitoring Location Samples, measurements, and observations taken in compliance with the monitoring requirements above shall be taken prior to mixing with other waste streams.

PERMIT NO. MI0037028 Page 12 of 47

8. Final Effluent Limitations, Monitoring Point 013A During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the permittee is authorized to discharge a maximum of 450 MGY of dredging dewatering water from Monitoring Point 013A through Outfall 013. Outfall 013 discharges to Lake Erie at Latitude 41.95833, Longitude -83.25833.

Such discharge shall be limited and monitored by the permittee as specified below.

Maximum Limits for Maximum Limits for Quantity or Loading Quality or Concentration Monitoring Sample Parameter Monthly Daily Units Monthly Daily Units Frequency Type Flow (report) (report) MGD --- --- --- Daily Report Total Daily Flow Total Suspended Solids Intake --- --- --- (report) (report) mg/l Daily Grab Discharge --- --- --- (report) (report) mg/l Daily Grab Net --- --- --- 35 70 mg/l Daily Grab Outfall Observation (report) --- --- --- --- --- Daily Visual Minimum Daily pH --- --- --- 6.5 9.0 S.U. Daily Grab

a. Narrative Standard The receiving water shall contain no turbidity, color, oil films, floating solids, foams, settleable solids, or deposits as a result of this discharge in unnatural quantities which are or may become injurious to any designated use.

b. Monitoring Location and Frequency Samples, measurements, and observations taken in compliance with the monitoring requirements above shall be taken during discharge of wastewaters other than storm water and prior to discharge to Lake Erie. Intake samples shall be collected in the area of the dredging activity to determine the ambient total suspended solids concentration of the source water at the time of the dredging activity, but these samples shall not be collected in an area affected by the dredging activity.

c. Outfall Observation Outfall observation shall be reported as yes or no. The permittee shall report yes if this requirement was completed and no if this requirement was not completed. Any unusual characteristics of the discharge (i.e.,

unnatural turbidity, color, oil film, floating solids, foams, settleable solids, suspended solids, or deposits) shall be reported within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to the Department followed with a written report within five (5) days detailing the findings of the investigation and the steps taken to correct the condition.

d. Water Treatment Additives This permit does not authorize the discharge of water treatment additives without approval. Approval of water treatment additives is authorized under separate correspondence. Water treatment additives include any material that is added to water used at the facility or to a wastewater generated by the facility to condition or treat the water. In the event a permittee proposes to discharge water treatment additives, including an increased discharge concentration of a previously approved water treatment additive, the permittee shall submit a request for approval in accordance with Part I.A.9. of this permit.

e. Net Total Suspended Solids Calculation The net total suspended solids concentration shall be determined by subtracting the concentration of the intake sample from the concentration of the discharge sample. Negative results shall be reported as zero (0).

Samples shall be taken within the same 24-hour period.

PERMIT NO. MI0037028 Page 13 of 47

9. Request for Approval to Use Water Treatment Additives Prior to use of any water treatment additive, the permittee shall obtain written approval from the Department.

Requests for such approval shall be submitted via the Departments MiWaters system. The MiWaters website is located at https://miwaters.deq.state.mi.us. Instructions for submitting such a request may be obtained at http://www.michigan.gov/deqnpdes (near the bottom of that page, click on one or both of the links located under the Water Treatment Additives banner). Additional monitoring and reporting may be required as a condition for the approval to use the water treatment additive.

A request for approval to use water treatment additives shall include all of the following usage and discharge information for each water treatment additive proposed to be used:

a. The Safety Data Sheet (SDS);

b. Ingredient information, including the name of each ingredient, CAS number for each ingredient, and fractional content by weight for each ingredient;

c. The proposed water treatment additive discharge concentration with supporting calculations;

d. The discharge frequency (i.e., number of hours per day and number of days per year);

e. The outfall(s) and monitoring point(s) from which the water treatment additive is to be discharged;

f. The type of removal treatment, if any, that the water treatment additive receives prior to discharge;

g. The water treatment additives function (i.e., microbiocide, flocculant, etc.);

h. The SDS shall include a 48-hour LC50 or EC50 for a North American freshwater planktonic crustacean (either Ceriodaphnia sp., Daphnia sp., or Simocephalus sp.); and.). The results shall be based on the whole water treatment additive, shall not be results based on a similar product, and shall not be estimated; and

i. The SDS shall include the results of a toxicity test for one (1) other North American freshwater aquatic species (other than a planktonic crustacean) that meets a minimum requirement of R 323.1057(2) of the Water Quality Standards. The results shall be based on the whole water treatment additive, shall not be results based on a similar product, and shall not be estimated. Examples of tests that would meet this requirement include a 96-hour LC50 for rainbow trout, bluegill, or fathead minnow.

10. Cold Shock Prevention Cessation of thermal inputs to the receiving water by this facility shall occur gradually so as to avoid fish mortality due to cold shock during the winter months (November through March). The basis for this requirement is to allow fish associated with the discharge-heated mixing zone for outfall 001 to acclimate to the decreasing temperature.

11. Intake Screen Backwash - Outfalls 000 and 011 During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the permittee is authorized to discharge intake screen backwash from outfalls 000 and 011 to Lake Erie. The permittee shall collect and remove debris accumulated on intake trash bars and dispose of such material on land in an appropriate manner.

PERMIT NO. MI0037028 Page 14 of 47

12. Pollutant Minimization Program for Total Mercury The goal of the Pollutant Minimization Program is to maintain the effluent concentration of total mercury at or below 1.3 ng/l. The permittee shall continue to implement the Pollutant Minimization Program approved on May 27, 2007, and modifications thereto, to proceed toward the goal. The Pollutant Minimization Program includes the following:

a. an annual review and semi-annual monitoring of potential sources of mercury entering the wastewater collection system;

b. a program for quarterly monitoring of influent; and

c. implementation of reasonable cost-effective control measures when sources of mercury are discovered.

Factors to be considered include significance of sources, economic considerations, and technical and treatability considerations.

On or before March 31 of each year, the permittee shall submit a status report for the previous calendar year to the Department that includes 1) the monitoring results for the previous year, 2) an updated list of potential mercury sources, and 3) a summary of all actions taken to reduce or eliminate identified sources of mercury.

Any information generated as a result of the Pollutant Minimization Program set forth in this permit may be used to support a request to modify the approved program or to demonstrate that the Pollutant Minimization Program requirement has been completed satisfactorily.

A request for modification of the approved program and supporting documentation shall be submitted in writing to the Department for review and approval. The Department may approve modifications to the approved program (approval of a program modification does not require a permit modification), including a reduction in the frequency of the requirements under items a. & b.

This permit may be modified in accordance with applicable laws and rules to include additional mercury conditions and/or limitations as necessary.

13. Cooling Water Intake Structure - Interim Approval The federal rules promulgated by the United States Environmental Protection Agency in 40 CFR Parts 122 and 125 establishing the requirements of section 316(b) of the Clean Water Act for Existing Facilities took effect October 14, 2014. Beginning October 14, 2014, any facility covered by the rules requesting permit reissuance shall submit an application in accordance with the rules and shall be subject to the best technology available (BTA) standards for impingement mortality and entrainment as defined in the rules. Since the application for permit reissuance was submitted prior to the effective date of the rules, for this reissuance, the permittee is subject to site-specific requirements as determined on a case-by-case Best Professional Judgment Basis.

The cooling water intake structure operated by the permittee has been evaluated using all available information relating to its location, design, construction, and capacity. At this time, the Department has made an interim determination that since the facility operates a closed-cycle recirculating system, the cooling water intake structure represents BTA to minimize adverse environmental impact in accordance with section 316(b) of the federal Clean Water Act (33 U.S.C. section 1326). The permittee shall at all times properly operate and maintain the cooling water intake structure and associated equipment to minimize adverse environmental impact. The permittee shall give advance notice to the Department of any planned changes in the location, design, operation, or capacity of the intake structure. If the Department determines that additional technologies or control measures are necessary to reduce the impact of impingement or entrainment, the Department may revise the requirements of this condition. Nothing in this permit shall either be construed to relieve the permittee from civil or criminal penalties for previous or future fish losses, or authorize take for the purposes of a facilitys compliance with the Endangered Species Act.

If the federal rules promulgated under section 316(b) remain in effect at the time of application for reissuance, on or before April 4, 2022, with the application for reissuance, the permittee shall submit the appropriate information specified in 40 CFR 122.21(r) for the cooling water intake structure at this facility. Any request for alternate application submittal requirements specific to the decommissioning of a facility or portions of a facility shall be approved by the Department prior to application submission.

PERMIT NO. MI0037028 Page 15 of 47

14. Facility Contact The Facility Contact was specified in the application. The permittee may replace the facility contact at any time, and shall notify the Department in writing within 10 days after replacement (including the name, address and telephone number of the new facility contact).

a. The facility contact shall be (or a duly authorized representative of this person):

for a corporation, a principal executive officer of at least the level of vice president; or a designated representative if the representative is responsible for the overall operation of the facility from which the discharge originates, as described in the permit application or other NPDES form,

for a partnership, a general partner,

for a sole proprietorship, the proprietor, or

for a municipal, state, or other public facility, either a principal executive officer, the mayor, village president, city or village manager or other duly authorized employee.

b. A person is a duly authorized representative only if:

the authorization is made in writing to the Department by a person described in paragraph a. of this section; and

the authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity such as the position of plant manager, operator of a well or a well field, superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the facility (a duly authorized representative may thus be either a named individual or any individual occupying a named position).

Nothing in this section obviates the permittee from properly submitting reports and forms as required by law.

15. Discharge Monitoring Report - Quality Assurance Study Program The permittee shall participate in the Discharge Monitoring Report - Quality Assurance (DMR-QA) Study Program. The purpose of the DMR-QA Study Program is to annually evaluate the proficiency of all in-house and/or contract laboratory(ies) that perform, on behalf of the facility authorized to discharge under this permit, the analytical testing required under this permit. In accordance with Section 308 of the Clean Water Act (33 U.S.C. § 1318); and R 323.2138 and R 323.2154 of Part 21, Wastewater Discharge Permits, promulgated under Part 31 of the NREPA, participation in the DMR-QA Study Program is required for all major facilities, and for minor facilities selected for participation by the Department.

Annually and in accordance with DMR-QA Study Program requirements and submittal due dates, the permittee shall submit to the Michigan DMR-QA Study Program state coordinator all documentation required by the DMR-QA Study. DMR-QA Study Program participation is required only for the analytes required under this permit and only when those analytes are also identified in the DMR-QA Study.

If the permitted facilitys status as a major facility should change, participation in the DMR-QA Study Program may be reevaluated. Questions concerning participation in the DMR-QA Study Program should be directed to the Michigan DMR-QA Study Program state coordinator.

All forms and instructions required for participation in the DMR-QA Study Program, including submittal due dates and state coordinator contact information, can be found at http://www.epa.gov/compliance/discharge-monitoring-report-quality-assurance-study-program.

PERMIT NO. MI0037028 Page 16 of 47

16. Quantification Levels and Analytical Methods for Selected Parameters Quantification levels (QLs) are specified for selected parameters in the table below. These QLs shall be considered the maximum acceptable unless a higher QL is appropriate because of sample matrix interference.

Justification for higher QLs shall be submitted to the Department within 30 days of such determination. Where necessary to help ensure that the QLs specified can be achieved, analytical methods may also be specified in the table below. The sampling procedures, preservation and handling, and analytical protocol for all monitoring conducted in compliance with this permit, including monitoring conducted to meet the requirements of the application for permit reissuance, shall be in accordance with the methods specified in the table below, or in accordance with Part II.B.2. of this permit if no method is specified in the table below, unless an alternate method is approved by the Department. With the exception of total mercury, all units are in ug/l. The table is continued on the following page:

Parameter QL Units Analytical Method 1,2-Diphenylhydrazine (as Azobenzene) 3.0 ug/l 2,4,6-Trichlorophenol 5.0 ug/l 2,4-Dinitrophenol 19 ug/l 3,3-Dichlorobenzidine 1.5 ug/l EPA Method 605 4,4-DDD 0.05 ug/l EPA Method 608 4,4-DDE 0.01 ug/l EPA Method 608 4,4-DDT 0.01 ug/l EPA Method 608 Acrylonitrile 1.0 ug/l Aldrin 0.01 ug/l EPA Method 608 Alpha-Hexachlorocyclohexane 0.01 ug/l EPA Method 608 Antimony, Total 1 ug/l Arsenic, Total 1 ug/l Barium, Total 5 ug/l Benzidine 0.1 ug/l EPA Method 605 Beryllium, Total 1 ug/l Beta-Hexachlorocyclohexane 0.01 ug/l EPA Method 608 Bis (2-Chloroethyl) Ether 1.0 ug/l Boron, Total 20 ug/l Cadmium, Total 0.2 ug/l Chlordane 0.01 ug/l EPA Method 608 Chromium, Hexavalent 5 ug/l Chromium, Total 10 ug/l Copper, Total 1 ug/l Cyanide, Available 2 ug/l EPA Method OIA 1677 Cyanide, Total 5 ug/l Delta-Hexachlorocyclohexane 0.01 ug/l EPA Method 608 Dieldrin 0.01 ug/l EPA Method 608 Di-N-Butyl Phthalate 9.0 ug/l Endosulfan I 0.01 ug/l EPA Method 608 Endosulfan II 0.01 ug/l EPA Method 608 Endosulfan Sulfate 0.01 ug/l EPA Method 608 Endrin 0.01 ug/l EPA Method 608 Endrin Aldehyde 0.01 ug/l EPA Method 608 Fluoranthene 1.0 ug/l Heptachlor 0.01 ug/l EPA Method 608 Heptachlor Epoxide 0.01 ug/l EPA Method 608 Hexachlorobenzene 0.01 ug/l EPA Method 612 Hexachlorobutadiene 0.01 ug/l EPA Method 612 Hexachlorocyclopentadiene 0.01 ug/l EPA Method 612 Hexachloroethane 5.0 ug/l

PERMIT NO. MI0037028 Page 17 of 47 Parameter QL Units Analytical Method Lead, Total 1 ug/l Lindane 0.01 ug/l EPA Method 608 Lithium, Total 10 ug/l Mercury, Total 0.5 ng/l EPA Method 1631E Nickel, Total 5 ug/l PCB-1016 0.1 ug/l EPA Method 608 PCB-1221 0.1 ug/l EPA Method 608 PCB-1232 0.1 ug/l EPA Method 608 PCB-1242 0.1 ug/l EPA Method 608 PCB-1248 0.1 ug/l EPA Method 608 PCB-1254 0.1 ug/l EPA Method 608 PCB-1260 0.1 ug/l EPA Method 608 Pentachlorophenol 1.8 ug/l Phenanthrene 1.0 ug/l Selenium, Total 1.0 ug/l Silver, Total 0.5 ug/l Strontium, Total 1000 ug/l Sulfides, Dissolved 20 ug/l Thallium, Total 1 ug/l Toxaphene 0.1 ug/l EPA Method 608 Vinyl Chloride 0.25 ug/l Zinc, Total 10 ug/l

PERMIT NO. MI0037028 Page 18 of 47 PART I Section B. Storm Water Pollution Prevention

1. Final Effluent Limitations and Monitoring Requirements The permittee is authorized to discharge an unspecified amount of storm water associated with industrial activity as defined under 40 CFR 122.26(b)(14)(i-ix) and (xi), or as deemed necessary under Section 402(p)(2)(E) of the Federal Act, and other storm water that is adequately regulated by this permit, to the surface waters of the State of Michigan. Applicable discharges include storm water for which the Department has determined additional monitoring is needed from areas herein referred to collectively as special-use areas: secondary containment structures required by state or federal law; lands on Michigans List of Sites of Environmental Contamination, pursuant to Part 201, Environmental Remediation, of the NREPA; and areas where industrial activity occurs that may contribute pollutants to the storm water. Such discharge shall be limited and monitored by the permittee as specified below.

a. Narrative Standard The receiving water shall contain no turbidity, color, oil films, floating solids, foams, settleable solids, suspended solids, or deposits as a result of this discharge in unnatural quantities, which are or may become injurious to any designated use.

b. Visual Assessment of Storm Water Discharges To ensure that storm water discharges from the facility do not violate the narrative standard in the receiving waters, storm water discharges shall be visually assessed in accordance with this permit.

c. Implementation of Storm Water Pollution Prevention Plan The permittee shall implement an acceptable Storm Water Pollution Prevention Plan (SWPPP) as required by this permit.

d. Implementation of Short-Term Storm Water Characterization Study The permittee shall implement an approved Short-Term Storm Water Characterization Study (STSWCS) as required by this permit.

e. Certified Operator The permittee shall have an Industrial Storm Water Certified Operator who has supervision over the facilitys storm water treatment and control measures included in the SWPPP.

f. Prohibition of Storm Water Discharges In addition to the requirements set forth in a. through e., above, storm water may not be discharged from special-use areas if:

1) the storm water contains unnatural turbidity, color, oil film, floating solids, foams, settleable solids, or suspended solids;

2) the permittee knows, or has reason to believe, the storm water is contaminated by or has come into contact with materials present within the special-use area, unless the Department approves the discharge; or

3) the permittee knows, or has reason to believe, the storm water is contaminated by or has come into contact with materials that may cause a violation of water quality standards.

PERMIT NO. MI0037028 Page 19 of 47

2. Short-Term Storm Water Characterization Study The permittee shall complete a STSWCS once during each permit cycle, as a means of evaluating the quality of the storm water being discharged from special-use areas. On or before May 1, 2019, the permittee shall submit to the Department an approvable STSWCS plan developed in accordance with the requirements set forth in a.

through e., below. For a facility with more than one category of special-use area, (e.g., a secondary containment structure and a Site of Environmental Contamination), the STSWCS plan shall address each area individually.

Following review of the STSWCS plan, the Department may request changes to it. Upon approval of the STSWCS plan, the permittee shall begin monitoring the authorized discharge as specified in the plan. If the Department does not take action to approve or comment on the STSWCS plan within 90 days after its submittal, the permittee shall begin storm water monitoring in accordance with the STSWCS plan submitted.

An approvable STSWCS plan shall include the requirements set forth in a. through f., below. Additional guidance for developing an approvable STSWCS plan is available on the Internet at www.michigan.gov/deqstormwater, then in the center of the page, under the Information heading, click on the Industrial Program link, and at the bottom of the page under the Storm Water Sampling Info heading is the Short-Term Storm Water Characterization Study Document link. Nothing in this permit shall prevent additional sampling from being conducted beyond that specified in the STSWCS plan.

a. Description of Special-Use Area The STSWCS plan shall include a description of the special-use area. This description shall identify:

1) the type of special-use area (e.g., a secondary containment area for fuel storage tanks), and its approximate size or volume (e.g., approximately 100 cubic feet);

2) the means by which discharges from the special-use area reach surface waters of the state, and the identity of the receiving water (e.g., valves are periodically opened to release storm water, which runs across pavement into a municipal storm sewer that discharges to the Grand River); and

3) the potential contaminants of concern (e.g., diesel fuel).

b. Sample Collection and Handling The STSWCS plan shall include procedures for sample collection and handling, as follows:

1) the list of pollutants to be monitored. The list shall include all significant materials that the permittee knows, or has reason to believe, are present in the special-use area, as well as any additional parameters (e.g., hardness, pH, etc.) that may be needed to adequately evaluate certain contaminant concentrations in the discharge;

2) the location(s) at which samples will be collected. The STSWCS plan may propose monitoring a combined discharge from multiple secondary containment structures at a single location if the permittee has demonstrated, in the STSWCS plan, that the proposed monitoring location is representative of the discharge from all secondary containment structures;

3) the sampling procedures, including sampling tools, depth at which sample will be collected from within the water column, etc.;

4) the source(s) or reference(s) associated with any standard sampling method(s) to be used;

5) the sample type to be collected for each pollutant (e.g., grab sample, 24-hour composite sample, etc.), and whether the sample will be collected by a person or by an automated sampler; and

6) the person(s) responsible for conducting the sampling.

c. Sampling Frequency The STSWCS plan shall identify:

1) the number of samples that will be collected at each location during each qualifying storm event.

A qualifying storm event is defined as a storm event causing greater than 0.1 inch of rainfall and occurring at least 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months after the previous measurable storm event that also caused greater than 0.1 inch of rainfall, unless an alternate definition is approved by the Department;

PERMIT NO. MI0037028 Page 20 of 47

2) the number of sampling events necessary to characterize the quality of the discharge. A minimum of three (3) qualifying storm events shall be sampled;

3) the frequency or spacing of the sampling events, as appropriate (e.g., at least 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months since previous qualifying storm event);

4) the timing of the sampling events (e.g., within the first 30 minutes of discharge from each rainstorm greater than 0.1 inch; or, whenever discharge from the containment area becomes necessary); and

5) the approximate period(s) of the year during which samples will be collected.

d. Sample Analysis The STSWCS plan shall identify:

1) the EPA-approved test procedure by which each pollutant will be analyzed. All pollutants shall be analyzed in accordance with Part II.B.2. of this permit;

2) the quantification level for each analysis. Acceptable quantification levels for selected parameters are available in the NPDES Permit Application Appendix located at www.michigan.gov/deq, then on the left-hand side click on Water, then Surface Water, and then NPDES Permits. In the center of the page, under the Information heading, click on How to Apply for an NPDES permit. The Permit Application Appendix is under the Downloadable Forms header;

3) the laboratory performing the analysis, and any certifications or other relevant qualifications the laboratory and/or lab technician has; and

4) the approximate date by which the STSWCS will be completed, and the approximate date by which the final report will be submitted to the Department.

e. Additional Requirements by Special-Use Area

1) For secondary containment structures or detention basins with detention periods greater than 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , samples shall be collected from the water within a structure/basin, or of the discharge prior to mixing with the receiving water or other waste streams; and grab samples shall be collected unless the Department specifies other sampling methods.

2) For sites of environmental contamination or areas with other activities (without secondary containment or 24-hour detention) that may contribute pollutants to the storm water for which the Department determines monitoring is needed, samples shall be collected from any discharge resulting from a qualifying storm event. At least one grab sample shall be collected during the first 30 minutes of the discharge for each qualifying storm event. Additionally, composite samples may be required during the first three (3) hours of a discharge event if deemed necessary by the Department to adequately characterize the pollutants discharged from the site.

f. Reporting Within 60 days of the final sampling event conducted as part of the STSWCS, all permittees shall submit to the Department a final report summarizing the results of the STSWCS. If, upon review of the report, it is determined that any materials or constituents require limiting to protect the receiving waters in accordance with applicable water quality standards, the Department may modify this permit in accordance with applicable laws and rules. The final report shall, at a minimum, provide:

1) the dates on which samples were collected and analyzed, and whether sample handling times were met or exceeded;

2) all analytical results including actual quantification levels and any notations provided by the laboratory, and all sheets provided by the laboratory; and

3) for each qualifying storm event that occurs during the period covered by the STSWCS, the report shall provide:

(a) a written record of the qualifying storm events date and duration,

PERMIT NO. MI0037028 Page 21 of 47 (b) a measurement or estimate of the rainfall, (c) the time (in days) elapsed between the qualifying storm event sampled and the end-date of the previous qualifying storm event, (d) the concentration and units of each pollutant sampled, and (e) the estimated total volume of the resulting discharge to the receiving water.

PERMIT NO. MI0037028 Page 22 of 47 The Storm Water Pollution Prevention Plan (SWPPP) is a written procedure to reduce the exposure of storm water to significant materials and to reduce the amount of significant materials in the storm water discharge. An acceptable SWPPP shall identify potential sources of contamination and describe the controls necessary to reduce their impacts in accordance with Part I.B.3. through Part I.B.9. of this permit.

3. Source Identification To identify potential sources of significant materials that can pollute storm water and subsequently be discharged from the facility, the SWPPP shall, at a minimum, include the following items:

a. A site map identifying:

1) buildings and other permanent structures;

2) storage or disposal areas for significant materials;

3) secondary containment structures and descriptions of the significant materials contained within the primary containment structures;

4) storm water discharge points (which include outfalls and points of discharge), numbered or otherwise labeled for reference;

5) location of storm water and non-storm water inlets (numbered or otherwise labeled for reference) contributing to each discharge point;

6) location of NPDES-permitted discharges other than storm water;

7) outlines of the drainage areas contributing to each discharge point;

8) structural controls or storm water treatment facilities;

9) areas of vegetation (with brief descriptions such as lawn, old field, marsh, wooded, etc.);

10) areas of exposed and/or erodible soils and gravel lots;

11) impervious surfaces (e.g., roofs, asphalt, concrete, etc.);

12) name and location of receiving water(s); and

13) areas of known or suspected impacts on surface waters as designated under Part 201 (Environmental Response) of the NREPA.

b. A list of all significant materials that could pollute storm water. For each material listed, the SWPPP shall include each of the following descriptions:

1) the ways in which each type of significant material has been, or has reasonable potential to become, exposed to storm water (e.g., spillage during handling; leaks from pipes, pumps, and vessels; contact with storage piles, contaminated materials, or soils; waste handling and disposal; deposits from dust or overspray; etc.);

2) identification of the discharge point(s) and the inlet(s) contributing the significant material to each discharge point through which the significant material may be discharged if released; and

3) an evaluation of the reasonable potential for contribution of significant materials to storm water from at least the following areas or activities:

PERMIT NO. MI0037028 Page 23 of 47 a) loading, unloading, and other significant material-handling operations; b) outdoor storage, including secondary containment structures; c) outdoor manufacturing or processing activities; d) significant dust- or particulate-generating processes; e) discharge from vents, stacks, and air emission controls; f) on-site waste disposal practices; g) maintenance and cleaning of vehicles, machines, and equipment; h) areas of exposed and/or erodible soils; i) Sites of Environmental Contamination listed under Part 201 (Environmental Response) of the NREPA; j) areas of significant material residues; k) areas where animals (wild or domestic) congregate and deposit wastes; and l) other areas where storm water may come into contact with significant materials.

c. A listing of significant spills and significant leaks of polluting materials that occurred in areas that are exposed to precipitation or that discharge to a point source at the facility. The listing shall include spills that occurred over the three (3) years prior to the effective date of a permit authorizing discharge. The listing shall include the date, volume, and exact location of the release, and the action taken to clean up the material and/or prevent exposure to storm water or contamination of surface waters of the state.

Any release that occurs after the SWPPP has been developed shall be controlled in accordance with the SWPPP and is cause for the SWPPP to be updated as appropriate within 14 calendar days of obtaining knowledge of the spill or loss.

d. A determination as to whether its facility discharges storm water to a water body for which an EPA-approved Total Maximum Daily Load (TMDL) has been established. If so, the permittee shall assess whether the TMDL requirements for the facilitys discharge are being met through the existing SWPPP controls or whether additional control measures are necessary. The permitees assessment of whether the TMDL requirements are being met shall focus on the effectiveness, adequacy, and implementation of the permitees SWPPP controls.

e. A summary of existing storm water discharge sampling data (if available), describing pollutants in storm water discharges at the facility. This summary shall be accompanied by a description of the suspected source(s) of the pollutants detected.

4. Nonstructural Controls To prevent significant materials from contacting storm water at the source, the SWPPP shall, at a minimum, include each of the following nonstructural controls:

a. Written procedures and a schedule for routine preventive maintenance. Preventive maintenance procedures shall describe routine inspections and maintenance of storm water management and control devices (e.g., cleaning of oil/water separators and catch basins, routine housekeeping activities, etc.), as well as inspecting and testing plant equipment and systems to uncover conditions that could cause breakdowns or failures resulting in discharges of pollutants to the storm sewer system or the surface waters of the state. The routine inspection shall include areas of the facility in which significant materials have the reasonable potential to contaminate storm water. A written report of the inspection and corrective actions shall be retained in accordance with Record Keeping, below.

PERMIT NO. MI0037028 Page 24 of 47

b. Written procedures and a schedule for good housekeeping to maintain a clean, orderly facility. Good housekeeping procedures shall include routine inspections that focus on the areas of the facility that have a reasonable potential to contaminate storm water entering the property. The routine housekeeping inspections may be combined with the routine inspections for the preventive maintenance program. A written report of the inspection and corrective actions shall be retained in accordance with Record Keeping, below.

c. Written procedures and a schedule for quarterly comprehensive site inspections, to be conducted by the Industrial Storm Water Certified Operator. At a minimum, one inspection shall be performed within each of the following quarters: January-March, April-June, July-September, and October-December.

The comprehensive site inspections shall include, but not be limited to, inspection of structural controls in use at the facility, and the areas and equipment identified in the routine preventive maintenance and good housekeeping procedures. These inspections shall also include a review of the routine preventive maintenance reports, good housekeeping inspection reports, and any other paperwork associated with the SWPPP. The permittee may request Department approval of an alternate schedule for comprehensive site inspections. A written report of the inspection and corrective actions shall be retained in accordance with Record Keeping, below, and the following shall be included on the comprehensive inspection form/report:

1) Date of the inspection.

2) Name(s), title(s), and certification number(s) of the personnel conducting the inspection.

3) Precipitation information (i.e., a description of recent rainfall/snowmelt events).

4) All observations relating to the implementation of control measures. Items to include if applicable:

a) updates on corrective actions implemented due to previously identified pollutant and/or discharge issues; b) any evidence of, or the potential for, pollutants to discharge to the drainage system or receiving waters and the condition of and around the discharge point including flow dissipation measures needing maintenance or repairs; c) any control measures needing maintenance or repairs; and d) any additional control measures needed to comply with permit requirements.

5) Any required revisions to the SWPPP resulting from the inspection.

6) A certification stating the facility is in compliance with this permit and the SWPPP, or, if there are instances of noncompliance, they are identified.

7) procedures and a schedule for quarterly visual assessments of storm water discharges. At a minimum, one visual assessment shall be conducted within each of the following quarters: January-March, April-June, July-September, and October-December. These assessments shall be conducted as part of the comprehensive site inspection within one month of control measure observations made in accordance with 4), above. If the Department has approved an alternate schedule for the comprehensive site inspection, the visual assessment may likewise be conducted in accordance with the same approved alternate schedule.

The following are the requirements of the visual assessment. The permittee shall develop and clearly document, in writing, procedures for meeting these requirements:

a) Within six (6) months of the effective date of this permit, the permittee shall develop written procedures for conducting the visual assessment and incorporate these procedures into the SWPPP. If Qualified Personnel rather than an Industrial Storm Water Certified Operator will collect storm water samples, these procedures shall include a written description of the training given to these personnel to qualify them to collect the samples, as well as documentation verifying that these personnel have received this training. The first visual assessment shall be conducted in conjunction

PERMIT NO. MI0037028 Page 25 of 47 with the next occurring comprehensive inspection. If changes resulting in altered drainage patterns occur at the facility, the permittee shall modify the procedures for conducting the visual assessment in accordance with the requirements of Keeping SWPPPs Current, below, and these modifications shall be incorporated into the SWPPP prior to conducting the next visual assessment.

b) A visual assessment shall be conducted of a representative storm water sample collected from each storm water discharge point. Storm water samples shall be visually assessed for conditions that could cause a violation of water quality standards as defined in Water Quality Standards, below. The visual assessment shall be made of the storm water sample in a clean, clear glass or plastic container. Only an Industrial Storm Water Certified Operator shall conduct this visual assessment. Visual assessment of the storm water sample shall be conducted within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months of sample collection.

Representative storm water samples shall be collected:

(1) from each storm water discharge point identified as set forth under Source Identification, above. These samples may be collected by one or more of the following:

an Industrial Storm Water Certified Operator; and/or an individual who meets qualifications acceptable to the Department and who is authorized by an Industrial Storm Water Certified Operator to collect the sample (Qualified Personnel); and/or an automated sampling device; and (2) within the first 30 minutes of the start of a discharge from a storm event and on discharges that occur at least 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months (3 days) from the previous discharge. If it is not possible to collect the sample within the first 30 minutes of discharge, the sample shall be collected as soon thereafter as practicable, but not exceeding 60 minutes. In the case of snowmelt, samples shall be collected during a period with measurable discharge from the site.

c) A visual assessment shall be conducted of the storm water discharge at each storm water discharge point. (If an automated sampling device is used to collect the storm water sample, this requirement is waived). Either an Industrial Storm Water Certified Operator and/or Qualified Personnel may conduct this visual assessment. This visual assessment may be conducted directly - by someone physically present at the storm water discharge at each storm water discharge point; or it may be conducted indirectly -

through the use of a visual recording taken of the storm water discharge at each storm water discharge point. Direct visual assessment shall be conducted at the same time that the storm water sample is collected. Indirect visual assessment shall be conducted using a visual recording taken of the storm water discharge at the same time that the storm water sample was collected.

d) Visual assessments shall be documented. This documentation shall be retained in accordance with Record Keeping, below, and shall include the following:

(1) sampling location(s) at the storm water discharge point(s) identified on the site map (see Source Identification, above);

(2) storm event information (i.e., length of event expressed in hours, approximate size of event expressed in inches of precipitation, duration of time since previous event that caused a discharge, and date and time the discharge began);

(3) date and time of the visual assessment of each storm water discharge at each storm water discharge point; (4) name(s) and title(s) of the Industrial Storm Water Certified Operator or Qualified Personnel who conducted the visual assessment of the storm water discharge at each storm water discharge point. If an automated sampling device was used to collect the storm water sample associated with this discharge point, this documentation requirement is waived;

PERMIT NO. MI0037028 Page 26 of 47 (5) observations made during visual assessment of the storm water discharge at each storm water discharge point. If an automated sampling device was used to collect the storm water sample associated with this discharge point, this documentation requirement is waived; (6) if applicable, any visual recordings used to conduct the visual assessment of the storm water discharge at each storm water discharge point; (7) date and time of sample collection for each storm water sample; (8) name(s) and title(s) of the Industrial Storm Water Certified Operator or Qualified Personnel who collected the storm water sample. If an automated sampling device was used to collect the storm water sample, the permittee shall document that, instead; (9) date and time of the visual assessment of each storm water sample; (10) name(s), title(s), and operator number(s) of the Industrial Storm Water Certified Operator(s) who conducted the visual assessment of each storm water sample; (11) observations made during visual assessment of each storm water sample; (12) full-color photographic evidence of the storm water sample against a white background; (13) nature of the discharge (i.e., rainfall or snowmelt);

(14) probable sources of any observed storm water contamination; and (15) if applicable, an explanation for why it was not possible to collect samples within the first 30 minutes of discharge.

e) When adverse weather conditions prevent a visual assessment during the quarter, a substitute visual assessment shall be conducted during the next qualifying storm event.

Documentation of the rationale for no visual assessment during a quarter shall be included with the SWPPP records as described in Record Keeping, below. Adverse conditions are those that are dangerous or create inaccessibility for personnel, such as local flooding, high winds, electrical storms, or situations that otherwise make sampling impractical such as drought or extended frozen conditions.

f) If the facility has two (2) or more discharge points that are believed to discharge substantially identical storm water effluents, the facility may conduct visual assessments of the discharge at just one (1) of the discharge points and report that the results also apply to the other substantially identical discharge point(s). The determination of substantially identical discharge points is to be based on the significant material evaluation conducted as set forth under Source Identification, above, and shall be clearly documented in the SWPPP. Visual assessments shall be conducted on a rotating basis of each substantially identical discharge point throughout the period of coverage under this permit.

d. A description of material handling procedures and storage requirements for significant materials.

Equipment and procedures for cleaning up spills shall be identified in the SWPPP and made available to the appropriate personnel. The procedures shall identify measures to prevent spilled materials or material residues from contaminating storm water discharges from the property. The SWPPP shall include language describing what a reportable spill or release is and the appropriate reporting requirements in accordance with Part II.C.6. and Part II.C.7. The SWPPP may include, by reference, requirements of either a Pollution Incident Prevention Plan (PIPP) prepared in accordance with the Part 5 Rules (R 324.2001 through R 324.2009 of the Michigan Administrative Code); a Hazardous Waste Contingency Plan prepared in accordance with 40 CFR 264 and 265 Subpart D, as required by Part 111 of the NREPA; or a Spill Prevention Control and Countermeasure (SPCC) plan prepared in accordance with 40 CFR 112.

PERMIT NO. MI0037028 Page 27 of 47

e. Identification of areas which, due to topography, activities, or other factors, have a high potential for significant soil erosion. Gravel lots shall be included. The SWPPP shall also identify measures used to control soil erosion and sedimentation.

f. A description of the employee training program that will be implemented on an annual basis to inform appropriate personnel at all levels of their responsibility as it relates to the components and goals of the SWPPP. The SWPPP shall identify periodic dates for the employee training program. Records of the employee training program shall be retained in accordance with Record Keeping, below.

g. Identification of actions to limit the discharge of significant materials in order to comply with TMDL requirements, if applicable.

h. Identification of significant materials expected to be present in storm water discharges following implementation of nonstructural preventive measures and source controls.

5. Structural Controls Where implementation of the measures required by Nonstructural Controls, above, does not control storm water discharges in accordance with Water Quality Standards, below, the SWPPP shall provide a description of the location, function, design criteria, and installation/construction schedule of structural controls for prevention and treatment. Structural controls may be necessary:

a. to prevent uncontaminated storm water from contacting, or being contacted by, significant materials; or

b. if preventive measures are not feasible or are inadequate to keep significant materials at the site from contaminating storm water. Structural controls shall be used to treat, divert, isolate, recycle, reuse, or otherwise manage storm water in a manner that reduces the level of significant materials in the storm water and provides compliance with water quality standards as identified in Water Quality Standards, below.

6. Keeping SWPPPs Current

a. The permittee and/or the Industrial Storm Water Certified Operator shall review the SWPPP annually after it is developed and maintain a written report of the review in accordance with Record Keeping, below. Based on the review, the permittee or the Industrial Storm Water Certified Operator shall amend the SWPPP as needed to ensure continued compliance with the terms and conditions of this permit.

The written report shall be submitted to the Department on or before January 10th of each year.

b. The SWPPP developed under the conditions of a previous permit shall be amended as necessary to ensure compliance with this permit.

c. The SWPPP shall be updated or amended whenever changes at the facility have the potential to increase the exposure of significant materials to storm water, significant spills occur at the facility, or when the SWPPP is determined by the permittee or the Department to be ineffective in achieving the general objectives of controlling pollutants in storm water discharges associated with industrial activity.

Updates based on increased activity or spills at the facility shall include a description of how the permittee intends to control any new sources of significant materials, or respond to and prevent spills in accordance with the requirements of this permit (see Source Identification; Nonstructural Controls; and Structural Controls, above).

d. The Department may notify the permittee at any time that the SWPPP does not meet minimum requirements of this permit. Such notification shall identify why the SWPPP does not meet minimum requirements of this permit. The permittee shall make the required changes to the SWPPP within 30 days after such notification from the Department or authorized representative and shall submit to the Department a written certification that the requested changes have been made.

e. Amendments to the SWPPP shall be signed and retained on-site with the SWPPP pursuant to Signature and SWPPP Review, below.

PERMIT NO. MI0037028 Page 28 of 47

7. Industrial Storm Water Certified Operator Update If the Industrial Storm Water Certified Operator is changed or an Industrial Storm Water Certified Operator is added, the permittee shall provide the name and certification number of the new Industrial Storm Water Certified Operator to the Department. If a facility has multiple Industrial Storm Water Certified Operators, the names and certification numbers of all shall be included in the SWPPP.

8. Signature and SWPPP Review

a. The SWPPP shall be reviewed and signed by the Industrial Storm Water Certified Operator(s) and by either the permittee or an authorized representative in accordance with 40 CFR 122.22. The SWPPP and associated records shall be retained on-site at the facility that generates the storm water discharge.

b. The permittee shall make the SWPPP, reports, log books, storm water discharge sampling data (if collected), and items required by Record Keeping, below, available upon request to the Department.

The Department makes the non-confidential business information-portions of the SWPPP available to the public upon request.

9. Record Keeping The permittee shall maintain records of all SWPPP-related inspection and maintenance activities. Records shall also be kept describing incidents such as spills or other discharges that may affect the quality of storm water discharged from the property. All such records shall be retained for three (3) years. The following records are required by this permit (see Nonstructural Controls; and Keeping SWPPPs Current, above):

a. routine preventive maintenance inspection reports

b. routine good housekeeping inspection reports

c. comprehensive site inspection reports

d. documentation of visual assessments

e. employee training records

f. written summaries of the annual SWPPP review

10. Water Quality Standards At the time of discharge, there shall be no violation of water quality standards in the receiving waters as a result of the storm water discharge. This requirement includes, but is not limited to, the following conditions:

a. In accordance with R 323.1050 of the Part 4 Rules promulgated pursuant to Part 31 of the NREPA, the receiving waters shall not have any of the following unnatural physical properties as a result of this discharge in unnatural quantities which are, or may become, injurious to any designated use: turbidity, color, oil films, floating solids, foams, settleable solids, suspended solids, or deposits.

b. Any unusual characteristics of the discharge (i.e., unnatural turbidity, color, oil film, floating solids, foams, settleable solids, suspended solids, or deposits) shall be reported within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to the Department, followed by a written report within five (5) days detailing the findings of the investigation and the steps taken to correct the condition.

c. Any pollutant for which a level of control is specified to meet a TMDL established by the Department shall be controlled at the facility so that its discharge is reduced by/to the amount specified in the TMDL.

PERMIT NO. MI0037028 Page 29 of 47

11. Prohibition of Non-Storm Water Discharges Discharges of material other than storm water shall be in compliance with an NPDES permit issued for the discharge. Storm water shall be defined to include all of the following non-storm water discharges, provided pollution prevention controls for the non-storm water component are identified in the SWPPP:

a. discharges from fire hydrant flushing;

b. potable water sources, including water line flushing;

c. water from fire system testing and fire-fighting training without burned materials or chemical fire suppressants;

d. irrigation drainage;

e. lawn watering;

f. routine building wash-down that does not use detergents or other compounds;

g. pavement wash waters where contamination by toxic or hazardous materials has not occurred (unless all contamination by toxic or hazardous materials has been removed) and where detergents are not used;

h. uncontaminated condensate from air conditioners, coolers, and other compressors and from the outside storage of refrigerated gases or liquids;

i. springs;

j. uncontaminated groundwater;

k. foundation or footing drains where flows are not contaminated with process materials such as solvents; and

l. discharges from fire-fighting activities. Discharges from fire-fighting activities are exempted from the requirement to be identified in the SWPPP.

12. Tracer Dye Discharges This permit does not authorize the discharge of tracer dyes without approval from the Department. Requests to discharge tracer dyes shall be submitted to the Department in accordance with Rule 1097 (R 323.1097 of the Michigan Administrative Code).

PERMIT NO. MI0037028 Page 30 of 47 PART II Part II may include terms and /or conditions not applicable to discharges covered under this permit.

Section A. Definitions Acute toxic unit (TUA) means 100/LC50 where the LC50 is determined from a whole effluent toxicity (WET) test which produces a result that is statistically or graphically estimated to be lethal to 50% of the test organisms.

Annual monitoring frequency refers to a calendar year beginning on January 1 and ending on December 31.

When required by this permit, an analytical result, reading, value or observation shall be reported for that period if a discharge occurs during that period.

Authorized public agency means a state, local, or county agency that is designated pursuant to the provisions of section 9110 of Part 91 of the NREPA to implement soil erosion and sedimentation control requirements with regard to construction activities undertaken by that agency.

Best management practices (BMPs) means structural devices or nonstructural practices that are designed to prevent pollutants from entering into storm water, to direct the flow of storm water, or to treat polluted storm water.

Bioaccumulative chemical of concern (BCC) means a chemical which, upon entering the surface waters, by itself or as its toxic transformation product, accumulates in aquatic organisms by a human health bioaccumulation factor of more than 1000 after considering metabolism and other physiochemical properties that might enhance or inhibit bioaccumulation. The human health bioaccumulation factor shall be derived according to R 323.1057(5). Chemicals with half-lives of less than 8 weeks in the water column, sediment, and biota are not BCCs. The minimum bioaccumulation concentration factor (BAF) information needed to define an organic chemical as a BCC is either a field-measured BAF or a BAF derived using the biota-sediment accumulation factor (BSAF) methodology. The minimum BAF information needed to define an inorganic chemical as a BCC, including an organometal, is either a field-measured BAF or a laboratory-measured bioconcentration factor (BCF). The BCCs to which these rules apply are identified in Table 5 of R 323.1057 of the Water Quality Standards.

Biosolids are the solid, semisolid, or liquid residues generated during the treatment of sanitary sewage or domestic sewage in a treatment works. This includes, but is not limited to, scum or solids removed in primary, secondary, or advanced wastewater treatment processes and a derivative of the removed scum or solids.

Bulk biosolids means biosolids that are not sold or given away in a bag or other container for application to a lawn or home garden.

Certificate of Coverage (COC) is a document, issued by the Department, which authorizes a discharge under a general permit.

Chronic toxic unit (TUC ) means 100/MATC or 100/IC25, where the maximum acceptable toxicant concentration (MATC) and IC25 are expressed as a percent effluent in the test medium.

Class B biosolids refers to material that has met the Class B pathogen reduction requirements or equivalent treatment by a Process to Significantly Reduce Pathogens (PSRP) in accordance with the Part 24 Rules.

Processes include aerobic digestion, composting, anaerobic digestion, lime stabilization and air drying.

Combined sewer system is a sewer system in which storm water runoff is combined with sanitary wastes.

PERMIT NO. MI0037028 Page 31 of 47 Daily concentration is the sum of the concentrations of the individual samples of a parameter divided by the number of samples taken during any calendar day. The daily concentration will be used to determine compliance with any maximum and minimum daily concentration limitations (except for pH and dissolved oxygen). When required by the permit, report the maximum calculated daily concentration for the month in the MAXIMUM column under QUALITY OR CONCENTRATION on the Discharge Monitoring Reports (DMRs).

For pH, report the maximum value of any individual sample taken during the month in the MAXIMUM column under QUALITY OR CONCENTRATION on the DMRs and the minimum value of any individual sample taken during the month in the MINIMUM column under QUALITY OR CONCENTRATION on the DMRs. For dissolved oxygen, report the minimum concentration of any individual sample in the MINIMUM column under QUALITY OR CONCENTRATION on the DMRs.

Daily loading is the total discharge by weight of a parameter discharged during any calendar day. This value is calculated by multiplying the daily concentration by the total daily flow and by the appropriate conversion factor.

The daily loading will be used to determine compliance with any maximum daily loading limitations. When required by the permit, report the maximum calculated daily loading for the month in the MAXIMUM column under QUANTITY OR LOADING on the DMRs.

Daily monitoring frequency refers to a 24-hour day. When required by this permit, an analytical result, reading, value or observation shall be reported for that period if a discharge occurs during that period.

Department means the Michigan Department of Environmental Quality.

Detection level means the lowest concentration or amount of the target analyte that can be determined to be different from zero by a single measurement at a stated level of probability.

Discharge means the addition of any waste, waste effluent, wastewater, pollutant, or any combination thereof to any surface water of the state.

EC50 means a statistically or graphically estimated concentration that is expected to cause 1 or more specified effects in 50% of a group of organisms under specified conditions.

Fecal coliform bacteria monthly FOR WWSLs THAT COLLECT AND STORE WASTEWATER AND ARE AUTHORIZED TO DISCHARGE ONLY IN THE SPRING AND/OR FALL ON AN INTERMITTENT BASIS - Fecal coliform bacteria monthly is the geometric mean of all daily concentrations determined during a discharge event. Days on which no daily concentration is determined shall not be used to determine the calculated monthly value. The calculated monthly value will be used to determine compliance with the maximum monthly fecal coliform bacteria limitations. When required by the permit, report the calculated monthly value in the AVERAGE column under QUALITY OR CONCENTRATION on the DMR. If the period in which the discharge event occurred was partially in each of two months, the calculated monthly value shall be reported on the DMR of the month in which the last day of discharge occurred.

FOR ALL OTHER DISCHARGES - Fecal coliform bacteria monthly is the geometric mean of all daily concentrations determined during a reporting month. Days on which no daily concentration is determined shall not be used to determine the calculated monthly value. The calculated monthly value will be used to determine compliance with the maximum monthly fecal coliform bacteria limitations. When required by the permit, report the calculated monthly value in the AVERAGE column under QUALITY OR CONCENTRATION on the DMR.

PERMIT NO. MI0037028 Page 32 of 47 Fecal coliform bacteria 7-day FOR WWSLs THAT COLLECT AND STORE WASTEWATER AND ARE AUTHORIZED TO DISCHARGE ONLY IN THE SPRING AND/OR FALL ON AN INTERMITTENT BASIS - Fecal coliform bacteria 7-day is the geometric mean of the daily concentrations determined during any 7 consecutive days of discharge during a discharge event. If the number of daily concentrations determined during the discharge event is less than 7 days, the number of actual daily concentrations determined shall be used for the calculation. Days on which no daily concentration is determined shall not be used to determine the value. The calculated 7-day value will be used to determine compliance with the maximum 7-day fecal coliform bacteria limitations. When required by the permit, report the maximum calculated 7-day geometric mean value for the month in the MAXIMUM column under QUALITY OR CONCENTRATION on the DMRs. If the 7-day period was partially in each of two months, the value shall be reported on the DMR of the month in which the last day of discharge occurred.

FOR ALL OTHER DISCHARGES - Fecal coliform bacteria 7-day is the geometric mean of the daily concentrations determined during any 7 consecutive days in a reporting month. If the number of daily concentrations determined is less than 7, the actual number of daily concentrations determined shall be used for the calculation. Days on which no daily concentration is determined shall not be used to determine the value.

The calculated 7-day value will be used to determine compliance with the maximum 7-day fecal coliform bacteria limitations. When required by the permit, report the maximum calculated 7-day geometric mean for the month in the MAXIMUM column under QUALITY OR CONCENTRATION on the DMRs. The first calculation shall be made on day 7 of the reporting month, and the last calculation shall be made on the last day of the reporting month.

Flow-proportioned sample is a composite sample with the sample volume proportional to the effluent flow.

General permit means a National Pollutant Discharge Elimination System permit issued authorizing a category of similar discharges.

Geometric mean is the average of the logarithmic values of a base 10 data set, converted back to a base 10 number.

Grab sample is a single sample taken at neither a set time nor flow.

IC25 means the toxicant concentration that would cause a 25% reduction in a nonquantal biological measurement for the test population.

Illicit connection means a physical connection to a municipal separate storm sewer system that primarily conveys non-storm water discharges other than uncontaminated groundwater into the storm sewer; or a physical connection not authorized or permitted by the local authority, where a local authority requires authorization or a permit for physical connections.

Illicit discharge means any discharge to, or seepage into, a municipal separate storm sewer system that is not composed entirely of storm water or uncontaminated groundwater. Illicit discharges include non-storm water discharges through pipes or other physical connections; dumping of motor vehicle fluids, household hazardous wastes, domestic animal wastes, or litter; collection and intentional dumping of grass clippings or leaf litter; or unauthorized discharges of sewage, industrial waste, restaurant wastes, or any other non-storm water waste directly into a separate storm sewer.

Individual permit means a site-specific NPDES permit.

Inlet means a catch basin, roof drain, conduit, drain tile, retention pond riser pipe, sump pump, or other point where storm water or wastewater enters into a closed conveyance system prior to discharge off site or into waters of the state.

PERMIT NO. MI0037028 Page 33 of 47 Interference is a discharge which, alone or in conjunction with a discharge or discharges from other sources, both: 1) inhibits or disrupts the POTW, its treatment processes or operations, or its sludge processes, use or disposal; and 2) therefore, is a cause of a violation of any requirement of the POTW's NPDES permit (including an increase in the magnitude or duration of a violation) or, of the prevention of sewage sludge use or disposal in compliance with the following statutory provisions and regulations or permits issued thereunder (or more stringent state or local regulations): Section 405 of the Clean Water Act, the Solid Waste Disposal Act (SWDA)

(including Title II, more commonly referred to as the Resource Conservation and Recovery Act (RCRA), and including state regulations contained in any state sludge management plan prepared pursuant to Subtitle D of the SWDA), the Clean Air Act, the Toxic Substances Control Act, and the Marine Protection, Research and Sanctuaries Act. [This definition does not apply to sample matrix interference].

Land application means spraying or spreading biosolids or a biosolids derivative onto the land surface, injecting below the land surface, or incorporating into the soil so that the biosolids or biosolids derivative can either condition the soil or fertilize crops or vegetation grown in the soil.

LC50 means a statistically or graphically estimated concentration that is expected to be lethal to 50% of a group of organisms under specified conditions.

Maximum acceptable toxicant concentration (MATC) means the concentration obtained by calculating the geometric mean of the lower and upper chronic limits from a chronic test. A lower chronic limit is the highest tested concentration that did not cause the occurrence of a specific adverse effect. An upper chronic limit is the lowest tested concentration which did cause the occurrence of a specific adverse effect and above which all tested concentrations caused such an occurrence.

Maximum extent practicable means implementation of best management practices by a public body to comply with an approved storm water management program as required by a national permit for a municipal separate storm sewer system, in a manner that is environmentally beneficial, technically feasible, and within the public bodys legal authority.

MGD means million gallons per day.

Monthly concentration is the sum of the daily concentrations determined during a reporting period divided by the number of daily concentrations determined. The calculated monthly concentration will be used to determine compliance with any maximum monthly concentration limitations. Days with no discharge shall not be used to determine the value. When required by the permit, report the calculated monthly concentration in the AVERAGE column under QUALITY OR CONCENTRATION on the DMR.

For minimum percent removal requirements, the monthly influent concentration and the monthly effluent concentration shall be determined. The calculated monthly percent removal, which is equal to 100 times the quantity [1 minus the quantity (monthly effluent concentration divided by the monthly influent concentration)],

shall be reported in the "MINIMUM" column under "QUALITY OR CONCENTRATION" on the DMRs.

Monthly loading is the sum of the daily loadings of a parameter divided by the number of daily loadings determined during a reporting period. The calculated monthly loading will be used to determine compliance with any maximum monthly loading limitations. Days with no discharge shall not be used to determine the value.

When required by the permit, report the calculated monthly loading in the AVERAGE column under QUANTITY OR LOADING on the DMR.

Monthly monitoring frequency refers to a calendar month. When required by this permit, an analytical result, reading, value or observation shall be reported for that period if a discharge occurs during that period.

Municipal separate storm sewer means a conveyance or system of conveyances designed or used for collecting or conveying storm water which is not a combined sewer and which is not part of a publicly-owned treatment works as defined in the Code of Federal Regulations at 40 CFR 122.2.

PERMIT NO. MI0037028 Page 34 of 47 Municipal separate storm sewer system (MS4) means all separate storm sewers that are owned or operated by the United States, a state, city, village, township, county, district, association, or other public body created by or pursuant to state law, having jurisdiction over disposal of sewage, industrial wastes, storm water, or other wastes, including special districts under state law, such as a sewer district, flood control district, or drainage district, or similar entity, or a designated or approved management agency under Section 208 of the Federal Act that discharges to the waters of the state. This term includes systems similar to separate storm sewer systems in municipalities, such as systems at military bases, large hospital or prison complexes, and highways and other thoroughfares. The term does not include separate storm sewers in very discrete areas, such as individual buildings.

National Pretreatment Standards are the regulations promulgated by or to be promulgated by the Federal Environmental Protection Agency pursuant to Section 307(b) and (c) of the Federal Act. The standards establish nationwide limits for specific industrial categories for discharge to a POTW.

No observed adverse effect level (NOAEL) means the highest tested dose or concentration of a substance which results in no observed adverse effect in exposed test organisms where higher doses or concentrations result in an adverse effect.

Noncontact cooling water is water used for cooling which does not come into direct contact with any raw material, intermediate product, by-product, waste product or finished product.

Nondomestic user is any discharger to a POTW that discharges wastes other than or in addition to water-carried wastes from toilet, kitchen, laundry, bathing or other facilities used for household purposes.

Outfall is the location at which a point source discharge enters the surface waters of the state.

Part 91 agency means an agency that is designated by a county board of commissioners pursuant to the provisions of section 9105 of Part 91 of the NREPA; an agency that is designated by a city, village, or township in accordance with the provisions of section 9106 of Part 91 of the NREPA; or the Department for soil erosion and sedimentation activities under Part 615, Part 631, or Part 632 pursuant to the provisions of section 9115 of Part 91 of the NREPA.

Part 91 permit means a soil erosion and sedimentation control permit issued by a Part 91 agency pursuant to the provisions of Part 91 of the NREPA.

Partially treated sewage is any sewage, sewage and storm water, or sewage and wastewater, from domestic or industrial sources that is treated to a level less than that required by the permittee's National Pollutant Discharge Elimination System permit, or that is not treated to national secondary treatment standards for wastewater, including discharges to surface waters from retention treatment facilities.

Point of discharge is the location of a point source discharge where storm water is discharged directly into a separate storm sewer system.

Point source discharge means a discharge from any discernible, confined, discrete conveyance, including but not limited to any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, or rolling stock.

Changing the surface of land or establishing grading patterns on land will result in a point source discharge where the runoff from the site is ultimately discharged to waters of the state.

Polluting material means any material, in solid or liquid form, identified as a polluting material under the Part 5 Rules (R 324.2001 through R 324.2009 of the Michigan Administrative Code).

POTW is a publicly owned treatment work.

Pretreatment is reducing the amount of pollutants, eliminating pollutants, or altering the nature of pollutant properties to a less harmful state prior to discharge into a public sewer. The reduction or alteration can be by physical, chemical, or biological processes, process changes, or by other means. Dilution is not considered pretreatment unless expressly authorized by an applicable National Pretreatment Standard for a particular industrial category.

PERMIT NO. MI0037028 Page 35 of 47 Public (as used in the MS4 individual permit) means all persons who potentially could affect the authorized storm water discharges, including, but not limited to, residents, visitors to the area, public employees, businesses, industries, and construction contractors and developers.

Public body means the United States; the state of Michigan; a city, village, township, county, school district, public college or university, or single-purpose governmental agency; or any other body which is created by federal or state statute or law.

Qualified Personnel means an individual who meets qualifications acceptable to the Department and who is authorized by an Industrial Storm Water Certified Operator to collect the storm water sample.

Qualifying storm event means a storm event causing greater than 0.1 inch of rainfall and occurring at least 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months after the previous measurable storm event that also caused greater than 0.1 inch of rainfall. Upon request, the Department may approve an alternate definition meeting the condition of a qualifying storm event.

Quantification level means the measurement of the concentration of a contaminant obtained by using a specified laboratory procedure calculated at a specified concentration above the detection level. It is considered the lowest concentration at which a particular contaminant can be quantitatively measured using a specified laboratory procedure for monitoring of the contaminant.

Quarterly monitoring frequency refers to a three month period, defined as January through March, April through June, July through September, and October through December. When required by this permit, an analytical result, reading, value or observation shall be reported for that period if a discharge occurs during that period.

Regional Administrator is the Region 5 Administrator, U.S. EPA, located at R-19J, 77 W. Jackson Blvd.,

Chicago, Illinois 60604.

Regulated area means the permittees urbanized area, where urbanized area is defined as a place and its adjacent densely-populated territory that together have a minimum population of 50,000 people as defined by the United States Bureau of the Census and as determined by the latest available decennial census.

Secondary containment structure means a unit, other than the primary container, in which significant materials are packaged or held, which is required by State or Federal law to prevent the escape of significant materials by gravity into sewers, drains, or otherwise directly or indirectly into any sewer system or to the surface or ground waters of this state.

Separate storm sewer system means a system of drainage, including, but not limited to, roads, catch basins, curbs, gutters, parking lots, ditches, conduits, pumping devices, or man-made channels, which is not a combined sewer where storm water mixes with sanitary wastes, and is not part of a POTW.

Significant industrial user is a nondomestic user that: 1) is subject to Categorical Pretreatment Standards under 40 CFR 403.6 and 40 CFR Chapter I, Subchapter N; or 2) discharges an average of 25,000 gallons per day or more of process wastewater to a POTW (excluding sanitary, noncontact cooling and boiler blowdown wastewater); contributes a process waste stream which makes up five (5) percent or more of the average dry weather hydraulic or organic capacity of the POTW treatment plant; or is designated as such by the permittee as defined in 40 CFR 403.12(a) on the basis that the industrial user has a reasonable potential for adversely affecting the POTW's treatment plant operation or violating any pretreatment standard or requirement (in accordance with 40 CFR 403.8(f)(6)).

Significant materials Significant Materials means any material which could degrade or impair water quality, including but not limited to: raw materials; fuels; solvents, detergents, and plastic pellets; finished materials such as metallic products; hazardous substances designated under Section 101(14) of Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) (see 40 CFR 372.65); any chemical the facility is required to report pursuant to Section 313 of Emergency Planning and Community Right-to-Know Act (EPCRA); polluting materials as identified under the Part 5 Rules (R 324.2001 through R 324.2009 of the Michigan Administrative Code); Hazardous Wastes as defined in Part 111 of the NREPA; fertilizers; pesticides; and waste products such as ashes, slag, and sludge that have the potential to be released with storm water discharges.

Significant spills and significant leaks means any release of a polluting material reportable under the Part 5 Rules (R 324.2001 through R 324.2009 of the Michigan Administrative Code).

PERMIT NO. MI0037028 Page 36 of 47 Special-use area means secondary containment structures required by state or federal law; lands on Michigans List of Sites of Environmental Contamination pursuant to Part 201, Environmental Remediation, of the NREPA; and/or areas with other activities that may contribute pollutants to the storm water for which the Department determines monitoring is needed.

Stoichiometric means the quantity of a reagent calculated to be necessary and sufficient for a given chemical reaction.

Storm water means storm water runoff, snow melt runoff, surface runoff and drainage, and non-storm water included under the conditions of this permit.

Storm water discharge point is the location where the point source discharge of storm water is directed to surface waters of the state or to a separate storm sewer. It includes the location of all point source discharges where storm water exits the facility, including outfalls which discharge directly to surface waters of the state, and points of discharge which discharge directly into separate storm sewer systems.

SWPPP means the Storm Water Pollution Prevention Plan prepared in accordance with this permit.

Tier I value means a value for aquatic life, human health or wildlife calculated under R 323.1057 of the Water Quality Standards using a tier I toxicity database.

Tier II value means a value for aquatic life, human health or wildlife calculated under R 323.1057 of the Water Quality Standards using a tier II toxicity database.

Total maximum daily loads (TMDLs) are required by the Federal Act for waterbodies that do not meet water quality standards. TMDLs represent the maximum daily load of a pollutant that a waterbody can assimilate and meet water quality standards, and an allocation of that load among point sources, nonpoint sources, and a margin of safety.

Toxicity reduction evaluation (TRE) means a site-specific study conducted in a stepwise process designed to identify the causative agents of effluent toxicity, isolate the sources of toxicity, evaluate the effectiveness of toxicity control options, and then confirm the reduction in effluent toxicity.

Water Quality Standards means the Part 4 Water Quality Standards promulgated pursuant to Part 31 of the NREPA, being R 323.1041 through R 323.1117 of the Michigan Administrative Code.

Weekly monitoring frequency refers to a calendar week which begins on Sunday and ends on Saturday.

When required by this permit, an analytical result, reading, value or observation shall be reported for that period if a discharge occurs during that period.

WWSL is a wastewater stabilization lagoon.

WWSL discharge event is a discrete occurrence during which effluent is discharged to the surface water up to 10 days of a consecutive 14 day period.

3-portion composite sample is a sample consisting of three equal-volume grab samples collected at equal intervals over an 8-hour period.

7-day concentration FOR WWSLs THAT COLLECT AND STORE WASTEWATER AND ARE AUTHORIZED TO DISCHARGE ONLY IN THE SPRING AND/OR FALL ON AN INTERMITTENT BASIS - The 7-day concentration is the sum of the daily concentrations determined during any 7 consecutive days of discharge during a WWSL discharge event divided by the number of daily concentrations determined. If the number of daily concentrations determined during the WWSL discharge event is less than 7 days, the number of actual daily concentrations determined shall be used for the calculation. The calculated 7-day concentration will be used to determine compliance with any maximum 7-day concentration limitations. When required by the permit, report the maximum calculated 7-day concentration for the WWSL discharge event in the MAXIMUM column under QUALITY OR CONCENTRATION on the DMR. If the WWSL discharge event was partially in each of two months, the value shall be reported on the DMR of the month in which the last day of discharge occurred.

PERMIT NO. MI0037028 Page 37 of 47 FOR ALL OTHER DISCHARGES - The 7-day concentration is the sum of the daily concentrations determined during any 7 consecutive days in a reporting month divided by the number of daily concentrations determined. If the number of daily concentrations determined is less than 7, the actual number of daily concentrations determined shall be used for the calculation. The calculated 7-day concentration will be used to determine compliance with any maximum 7-day concentration limitations in the reporting month. When required by the permit, report the maximum calculated 7-day concentration for the month in the MAXIMUM column under QUALITY OR CONCENTRATION on the DMR. The first 7-day calculation shall be made on day 7 of the reporting month, and the last calculation shall be made on the last day of the reporting month.

7-day loading FOR WWSLs THAT COLLECT AND STORE WASTEWATER AND ARE AUTHORIZED TO DISCHARGE ONLY IN THE SPRING AND/OR FALL ON AN INTERMITTENT BASIS - The 7-day loading is the sum of the daily loadings determined during any 7 consecutive days of discharge during a WWSL discharge event divided by the number of daily loadings determined. If the number of daily loadings determined during the WWSL discharge event is less than 7 days, the number of actual daily loadings determined shall be used for the calculation. The calculated 7-day loading will be used to determine compliance with any maximum 7-day loading limitations.

When required by the permit, report the maximum calculated 7-day loading for the WWSL discharge event in the MAXIMUM column under QUANTITY OR LOADING on the DMR. If the WWSL discharge event was partially in each of two months, the value shall be reported on the DMR of the month in which the last day of discharge occurred FOR ALL OTHER DISCHARGES - The 7-day loading is the sum of the daily loadings determined during any 7 consecutive days in a reporting month divided by the number of daily loadings determined. If the number of daily loadings determined is less than 7, the actual number of daily loadings determined shall be used for the calculation. The calculated 7-day loading will be used to determine compliance with any maximum 7-day loading limitations in the reporting month. When required by the permit, report the maximum calculated 7-day loading for the month in the MAXIMUM column under QUANTITY OR LOADING on the DMR. The first 7-day calculation shall be made on day 7 of the reporting month, and the last calculation shall be made on the last day of the reporting month.

24-hour composite sample is a flow-proportioned composite sample consisting of hourly or more frequent portions that are taken over a 24-hour period. A time-proportioned composite sample may be used upon approval of the Department if the permittee demonstrates it is representative of the discharge.

PERMIT NO. MI0037028 Page 38 of 47 PART II Section B. Monitoring Procedures

1. Representative Samples Samples and measurements taken as required herein shall be representative of the volume and nature of the monitored discharge.

2. Test Procedures Test procedures for the analysis of pollutants shall conform to regulations promulgated pursuant to Section 304(h) of the Federal Act (40 CFR Part 136 - Guidelines Establishing Test Procedures for the Analysis of Pollutants), unless specified otherwise in this permit. Test procedures used shall be sufficiently sensitive to determine compliance with applicable effluent limitations. Requests to use test procedures not promulgated under 40 CFR Part 136 for pollutant monitoring required by this permit shall be made in accordance with the Alternate Test Procedures regulations specified in 40 CFR 136.4. These requests shall be submitted to the Section Manager of the Permits Section, Water Resources Division, Michigan Department of Environmental Quality, P.O. Box 30458, Lansing, Michigan, 48909-7958. The permittee may use such procedures upon approval.

The permittee shall periodically calibrate and perform maintenance procedures on all analytical instrumentation at intervals to ensure accuracy of measurements. The calibration and maintenance shall be performed as part of the permittees laboratory Quality Control/Quality Assurance program.

3. Instrumentation The permittee shall periodically calibrate and perform maintenance procedures on all monitoring instrumentation at intervals to ensure accuracy of measurements.

4. Recording Results For each measurement or sample taken pursuant to the requirements of this permit, the permittee shall record the following information: 1) the exact place, date, and time of measurement or sampling; 2) the person(s) who performed the measurement or sample collection; 3) the dates the analyses were performed; 4) the person(s) who performed the analyses; 5) the analytical techniques or methods used; 6) the date of and person responsible for equipment calibration; and 7) the results of all required analyses.

5. Records Retention All records and information resulting from the monitoring activities required by this permit including all records of analyses performed and calibration and maintenance of instrumentation and recordings from continuous monitoring instrumentation shall be retained for a minimum of three (3) years, or longer if requested by the Regional Administrator or the Department.

PERMIT NO. MI0037028 Page 39 of 47 PART II Section C. Reporting Requirements

1. Start-up Notification If the permittee will not discharge during the first 60 days following the effective date of this permit, the permittee shall notify the Department within 14 days following the effective date of this permit, and then 60 days prior to the commencement of the discharge.

2. Submittal Requirements for Self-Monitoring Data Part 31 of the NREPA (specifically Section 324.3110(7)); and R 323.2155(2) of Part 21, Wastewater Discharge Permits, promulgated under Part 31 of the NREPA, allow the Department to specify the forms to be utilized for reporting the required self-monitoring data. Unless instructed on the effluent limitations page to conduct Retained Self-Monitoring, the permittee shall submit self-monitoring data via the Departments MiWaters system.

The permittee shall utilize the information provided on the MiWaters website, located at https://miwaters.deq.state.mi.us, to access and submit the electronic forms. Both monthly summary and daily data shall be submitted to the Department no later than the 20th day of the month following each month of the authorized discharge period(s). The permittee may be allowed to submit the electronic forms after this date if the Department has granted an extension to the submittal date.

3. Retained Self-Monitoring Requirements If instructed on the effluent limits page (or otherwise authorized by the Department in accordance with the provisions of this permit) to conduct retained self-monitoring, the permittee shall maintain a year-to-date log of retained self-monitoring results and, upon request, provide such log for inspection to the staff of the Department.

Retained self-monitoring results are public information and shall be promptly provided to the public upon request.

The permittee shall certify, in writing, to the Department, on or before January 10th (April 1st for animal feeding operation facilities) of each year, that: 1) all retained self-monitoring requirements have been complied with and a year-to-date log has been maintained; and 2) the application on which this permit is based still accurately describes the discharge. With this annual certification, the permittee shall submit a summary of the previous years monitoring data. The summary shall include maximum values for samples to be reported as daily maximums and/or monthly maximums and minimum values for any daily minimum samples.

Retained self-monitoring may be denied to a permittee by notification in writing from the Department. In such cases, the permittee shall submit self-monitoring data in accordance with Part II.C.2., above. Such a denial may be rescinded by the Department upon written notification to the permittee. Reissuance or modification of this permit or reissuance or modification of an individual permittees authorization to discharge shall not affect previous approval or denial for retained self-monitoring unless the Department provides notification in writing to the permittee.

4. Additional Monitoring by Permittee If the permittee monitors any pollutant at the location(s) designated herein more frequently than required by this permit, using approved analytical methods as specified above, the results of such monitoring shall be included in the calculation and reporting of the values required in the Discharge Monitoring Report. Such increased frequency shall also be indicated.

Monitoring required pursuant to Part 41 of the NREPA or Rule 35 of the Mobile Home Park Commission Act (Act 96 of the Public Acts of 1987) for assurance of proper facility operation shall be submitted as required by the Department.

PERMIT NO. MI0037028 Page 40 of 47

5. Compliance Dates Notification Within 14 days of every compliance date specified in this permit, the permittee shall submit a written notification to the Department indicating whether or not the particular requirement was accomplished. If the requirement was not accomplished, the notification shall include an explanation of the failure to accomplish the requirement, actions taken or planned by the permittee to correct the situation, and an estimate of when the requirement will be accomplished. If a written report is required to be submitted by a specified date and the permittee accomplishes this, a separate written notification is not required.

6. Noncompliance Notification Compliance with all applicable requirements set forth in the Federal Act, Parts 31 and 41 of the NREPA, and related regulations and rules is required. All instances of noncompliance shall be reported as follows:

a. 24-Hour Reporting Any noncompliance which may endanger health or the environment (including maximum and/or minimum daily concentration discharge limitation exceedances) shall be reported, verbally, within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months from the time the permittee becomes aware of the noncompliance. A written submission shall also be provided within five (5) days.

b. Other Reporting The permittee shall report, in writing, all other instances of noncompliance not described in a. above at the time monitoring reports are submitted; or, in the case of retained self-monitoring, within five (5) days from the time the permittee becomes aware of the noncompliance.

Written reporting shall include: 1) a description of the discharge and cause of noncompliance; and 2) the period of noncompliance, including exact dates and times, or, if not yet corrected, the anticipated time the noncompliance is expected to continue, and the steps taken to reduce, eliminate and prevent recurrence of the noncomplying discharge.

7. Spill Notification The permittee shall immediately report any release of any polluting material which occurs to the surface waters or groundwaters of the state, unless the permittee has determined that the release is not in excess of the threshold reporting quantities specified in the Part 5 Rules (R 324.2001 through R 324.2009 of the Michigan Administrative Code), by calling the Department at the number indicated on the second page of this permit (or, if this is a general permit, on the COC); or, if the notice is provided after regular working hours, call the Departments 24-hour Pollution Emergency Alerting System telephone number, 1-800-292-4706 (calls from out-of-state dial 1-517-373-7660).

Within ten (10) days of the release, the permittee shall submit to the Department a full written explanation as to the cause of the release, the discovery of the release, response (clean-up and/or recovery) measures taken, and preventive measures taken or a schedule for completion of measures to be taken to prevent reoccurrence of similar releases.

PERMIT NO. MI0037028 Page 41 of 47

8. Upset Noncompliance Notification If a process "upset" (defined as an exceptional incident in which there is unintentional and temporary noncompliance with technology based permit effluent limitations because of factors beyond the reasonable control of the permittee) has occurred, the permittee who wishes to establish the affirmative defense of upset, shall notify the Department by telephone within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months of becoming aware of such conditions; and within five (5) days, provide in writing, the following information:

a. that an upset occurred and that the permittee can identify the specific cause(s) of the upset;

b. that the permitted wastewater treatment facility was, at the time, being properly operated and maintained (note that an upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation); and

c. that the permittee has specified and taken action on all responsible steps to minimize or correct any adverse impact in the environment resulting from noncompliance with this permit.

No determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance, is final administrative action subject to judicial review.

In any enforcement proceedings, the permittee, seeking to establish the occurrence of an upset, has the burden of proof.

9. Bypass Prohibition and Notification

a. Bypass Prohibition Bypass is prohibited, and the Department may take an enforcement action, unless:

1) bypass was unavoidable to prevent loss of life, personal injury, or severe property damage;

2) there were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of equipment downtime.

This condition is not satisfied if adequate backup equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass; and

3) the permittee submitted notices as required under 9.b. or 9.c. below.

b. Notice of Anticipated Bypass If the permittee knows in advance of the need for a bypass, it shall submit prior notice to the Department, if possible at least ten (10) days before the date of the bypass, and provide information about the anticipated bypass as required by the Department. The Department may approve an anticipated bypass, after considering its adverse effects, if it will meet the three (3) conditions listed in 9.a. above.

c. Notice of Unanticipated Bypass The permittee shall submit notice to the Department of an unanticipated bypass by calling the Department at the number indicated on the second page of this permit (if the notice is provided after regular working hours, use the following number: 1-800-292-4706) as soon as possible, but no later than 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months from the time the permittee becomes aware of the circumstances.

PERMIT NO. MI0037028 Page 42 of 47

d. Written Report of Bypass A written submission shall be provided within five (5) working days of commencing any bypass to the Department, and at additional times as directed by the Department. The written submission shall contain a description of the bypass and its cause; the period of bypass, including exact dates and times, and if the bypass has not been corrected, the anticipated time it is expected to continue; steps taken or planned to reduce, eliminate, and prevent reoccurrence of the bypass; and other information as required by the Department.

e. Bypass Not Exceeding Limitations The permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to ensure efficient operation. These bypasses are not subject to the provisions of 9.a., 9.b., 9.c., and 9.d., above. This provision does not relieve the permittee of any notification responsibilities under Part II.C.11. of this permit.

f. Definitions

1) Bypass means the intentional diversion of waste streams from any portion of a treatment facility.

2) Severe property damage means substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production.

10. Bioaccumulative Chemicals of Concern (BCC)

Consistent with the requirements of R 323.1098 and R 323.1215 of the Michigan Administrative Code, the permittee is prohibited from undertaking any action that would result in a lowering of water quality from an increased loading of a BCC unless an increased use request and antidegradation demonstration have been submitted and approved by the Department.

11. Notification of Changes in Discharge The permittee shall notify the Department, in writing, as soon as possible but no later than 10 days of knowing, or having reason to believe, that any activity or change has occurred or will occur which would result in the discharge of: 1) detectable levels of chemicals on the current Michigan Critical Materials Register, priority pollutants or hazardous substances set forth in 40 CFR 122.21, Appendix D, or the Pollutants of Initial Focus in the Great Lakes Water Quality Initiative specified in 40 CFR 132.6, Table 6, which were not acknowledged in the application or listed in the application at less than detectable levels; 2) detectable levels of any other chemical not listed in the application or listed at less than detection, for which the application specifically requested information; or 3) any chemical at levels greater than five times the average level reported in the complete application (see the first page of this permit, for the date(s) the complete application was submitted). Any other monitoring results obtained as a requirement of this permit shall be reported in accordance with the compliance schedules.

PERMIT NO. MI0037028 Page 43 of 47

12. Changes in Facility Operations Any anticipated action or activity, including but not limited to facility expansion, production increases, or process modification, which will result in new or increased loadings of pollutants to the receiving waters must be reported to the Department by a) submission of an increased use request (application) and all information required under R 323.1098 (Antidegradation) of the Water Quality Standards or b) by notice if the following conditions are met:

1) the action or activity will not result in a change in the types of wastewater discharged or result in a greater quantity of wastewater than currently authorized by this permit; 2) the action or activity will not result in violations of the effluent limitations specified in this permit; 3) the action or activity is not prohibited by the requirements of Part II.C.10.; and 4) the action or activity will not require notification pursuant to Part II.C.11. Following such notice, the permit or, if applicable, the facilitys COC may be modified according to applicable laws and rules to specify and limit any pollutant not previously limited.

13. Transfer of Ownership or Control In the event of any change in control or ownership of facilities from which the authorized discharge emanates, the permittee shall submit to the Department 30 days prior to the actual transfer of ownership or control a written agreement between the current permittee and the new permittee containing: 1) the legal name and address of the new owner; 2) a specific date for the effective transfer of permit responsibility, coverage and liability; and 3) a certification of the continuity of or any changes in operations, wastewater discharge, or wastewater treatment.

If the new permittee is proposing changes in operations, wastewater discharge, or wastewater treatment, the Department may propose modification of this permit in accordance with applicable laws and rules.

14. Operations and Maintenance Manual For wastewater treatment facilities that serve the public (and are thus subject to Part 41 of the NREPA), Section 4104 of Part 41 and associated Rule 2957 of the Michigan Administrative Code allow the Department to require an Operations and Maintenance (O&M) Manual from the facility. An up-to-date copy of the O&M Manual shall be kept at the facility and shall be provided to the Department upon request. The Department may review the O&M Manual in whole or in part at its discretion and require modifications to it if portions are determined to be inadequate.

At a minimum, the O&M Manual shall include the following information: permit standards; descriptions and operation information for all equipment; staffing information; laboratory requirements; record keeping requirements; a maintenance plan for equipment; an emergency operating plan; safety program information; and copies of all pertinent forms, as-built plans, and manufacturers manuals.

Certification of the existence and accuracy of the O&M Manual shall be submitted to the Department at least sixty days prior to start-up of a new wastewater treatment facility. Recertification shall be submitted sixty days prior to start-up of any substantial improvements or modifications made to an existing wastewater treatment facility.

PERMIT NO. MI0037028 Page 44 of 47

15. Signatory Requirements All applications, reports, or information submitted to the Department in accordance with the conditions of this permit and that require a signature shall be signed and certified as described in the Federal Act and the NREPA.

The Federal Act provides that any person who knowingly makes any false statement, representation, or certification in any record or other document submitted or required to be maintained under this permit, including monitoring reports or reports of compliance or noncompliance, shall, upon conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment for not more than 6 months per violation, or by both.

The NREPA (Section 3115(2)) provides that a person who at the time of the violation knew or should have known that he or she discharged a substance contrary to this part, or contrary to a permit, COC, or order issued or rule promulgated under this part, or who intentionally makes a false statement, representation, or certification in an application for or form pertaining to a permit or COC or in a notice or report required by the terms and conditions of an issued permit or COC, or who intentionally renders inaccurate a monitoring device or record required to be maintained by the Department, is guilty of a felony and shall be fined not less than $2,500.00 or more than $25,000.00 for each violation. The court may impose an additional fine of not more than $25,000.00 for each day during which the unlawful discharge occurred. If the conviction is for a violation committed after a first conviction of the person under this subsection, the court shall impose a fine of not less than $25,000.00 per day and not more than $50,000.00 per day of violation. Upon conviction, in addition to a fine, the court in its discretion may sentence the defendant to imprisonment for not more than 2 years or impose probation upon a person for a violation of this part. With the exception of the issuance of criminal complaints, issuance of warrants, and the holding of an arraignment, the circuit court for the county in which the violation occurred has exclusive jurisdiction. However, the person shall not be subject to the penalties of this subsection if the discharge of the effluent is in conformance with and obedient to a rule, order, permit, or COC of the Department.

In addition to a fine, the attorney general may file a civil suit in a court of competent jurisdiction to recover the full value of the injuries done to the natural resources of the state and the costs of surveillance and enforcement by the state resulting from the violation.

16. Electronic Reporting Upon notice by the Department that electronic reporting tools are available for specific reports or notifications, the permittee shall submit electronically all such reports or notifications as required by this permit.

PERMIT NO. MI0037028 Page 45 of 47 PART II Section D. Management Responsibilities

1. Duty to Comply All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of any pollutant identified in this permit, more frequently than, or at a level in excess of, that authorized, shall constitute a violation of the permit.

It is the duty of the permittee to comply with all the terms and conditions of this permit. Any noncompliance with the Effluent Limitations, Special Conditions, or terms of this permit constitutes a violation of the NREPA and/or the Federal Act and constitutes grounds for enforcement action; for permit or Certificate of Coverage (COC) termination, revocation and reissuance, or modification; or denial of an application for permit or COC renewal.

It shall not be a defense for a permittee in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this permit.

2. Operator Certification The permittee shall have the waste treatment facilities under direct supervision of an operator certified at the appropriate level for the facility certification by the Department, as required by Sections 3110 and 4104 of the NREPA. Permittees authorized to discharge storm water shall have the storm water treatment and/or control measures under direct supervision of a storm water operator certified by the Department, as required by Section 3110 of the NREPA.

3. Facilities Operation The permittee shall, at all times, properly operate and maintain all treatment or control facilities or systems installed or used by the permittee to achieve compliance with the terms and conditions of this permit. Proper operation and maintenance includes adequate laboratory controls and appropriate quality assurance procedures.

4. Power Failures In order to maintain compliance with the effluent limitations of this permit and prevent unauthorized discharges, the permittee shall either:

a. provide an alternative power source sufficient to operate facilities utilized by the permittee to maintain compliance with the effluent limitations and conditions of this permit; or

b. upon the reduction, loss, or failure of one or more of the primary sources of power to facilities utilized by the permittee to maintain compliance with the effluent limitations and conditions of this permit, the permittee shall halt, reduce or otherwise control production and/or all discharge in order to maintain compliance with the effluent limitations and conditions of this permit.

5. Adverse Impact The permittee shall take all reasonable steps to minimize or prevent any adverse impact to the surface waters or groundwaters of the state resulting from noncompliance with any effluent limitation specified in this permit including, but not limited to, such accelerated or additional monitoring as necessary to determine the nature and impact of the discharge in noncompliance.

PERMIT NO. MI0037028 Page 46 of 47

6. Containment Facilities The permittee shall provide facilities for containment of any accidental losses of polluting materials in accordance with the requirements of the Part 5 Rules (R 324.2001 through R 324.2009 of the Michigan Administrative Code). For a Publicly Owned Treatment Work (POTW), these facilities shall be approved under Part 41 of the NREPA.

7. Waste Treatment Residues Residuals (i.e. solids, sludges, biosolids, filter backwash, scrubber water, ash, grit, or other pollutants or wastes) removed from or resulting from treatment or control of wastewaters, including those that are generated during treatment or left over after treatment or control has ceased, shall be disposed of in an environmentally compatible manner and according to applicable laws and rules. These laws may include, but are not limited to, the NREPA, Part 31 for protection of water resources, Part 55 for air pollution control, Part 111 for hazardous waste management, Part 115 for solid waste management, Part 121 for liquid industrial wastes, Part 301 for protection of inland lakes and streams, and Part 303 for wetlands protection. Such disposal shall not result in any unlawful pollution of the air, surface waters or groundwaters of the state.

8. Right of Entry The permittee shall allow the Department, any agent appointed by the Department, or the Regional Administrator, upon the presentation of credentials and, for animal feeding operation facilities, following appropriate biosecurity protocols:

a. to enter upon the permittees premises where an effluent source is located or any place in which records are required to be kept under the terms and conditions of this permit; and

b. at reasonable times to have access to and copy any records required to be kept under the terms and conditions of this permit; to inspect process facilities, treatment works, monitoring methods and equipment regulated or required under this permit; and to sample any discharge of pollutants.

9. Availability of Reports Except for data determined to be confidential under Section 308 of the Federal Act and Rule 2128 (R 323.2128 of the Michigan Administrative Code), all reports prepared in accordance with the terms of this permit, shall be available for public inspection at the offices of the Department and the Regional Administrator. As required by the Federal Act, effluent data shall not be considered confidential. Knowingly making any false statement on any such report may result in the imposition of criminal penalties as provided for in Section 309 of the Federal Act and Sections 3112, 3115, 4106 and 4110 of the NREPA.

10. Duty to Provide Information The permittee shall furnish to the Department, within a reasonable time, any information which the Department may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this permit or the facilitys COC, or to determine compliance with this permit. The permittee shall also furnish to the Department, upon request, copies of records required to be kept by this permit.

Where the permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or in any report to the Department, it shall promptly submit such facts or information.

PERMIT NO. MI0037028 Page 47 of 47 PART II Section E. Activities Not Authorized by This Permit

1. Discharge to the Groundwaters This permit does not authorize any discharge to the groundwaters. Such discharge may be authorized by a groundwater discharge permit issued pursuant to the NREPA.

2. POTW Construction This permit does not authorize or approve the construction or modification of any physical structures or facilities at a POTW. Approval for the construction or modification of any physical structures or facilities at a POTW shall be by permit issued under Part 41 of the NREPA.

3. Civil and Criminal Liability Except as provided in permit conditions on "Bypass" (Part II.C.9. pursuant to 40 CFR 122.41(m)), nothing in this permit shall be construed to relieve the permittee from civil or criminal penalties for noncompliance, whether or not such noncompliance is due to factors beyond the permittees control, such as accidents, equipment breakdowns, or labor disputes.

4. Oil and Hazardous Substance Liability Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities, liabilities, or penalties to which the permittee may be subject under Section 311 of the Federal Act except as are exempted by federal regulations.

5. State Laws Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities, liabilities, or penalties established pursuant to any applicable state law or regulation under authority preserved by Section 510 of the Federal Act.

6. Property Rights The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive privileges, nor does it authorize violation of any federal, state or local laws or regulations, nor does it obviate the necessity of obtaining such permits, including any other Department of Environmental Quality permits, or approvals from other units of government as may be required by law.

NRC-18-0053, National Pollutant Discharge Elimination System (NPDES) Permit Renewal

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NRC-18-0053, National Pollutant Discharge Elimination System (NPDES) Permit Renewal

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