J-1800000-07 Discharge of Wastewaters.pdf

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79 Elm Street • Hartford, CT 06106-5127 portal.ct.gov/deep Affirmative Action/Equal Opportunity Employer

General Permit for the Discharge of

Wastewaters from

Significant Industrial Users (SIU)

Discharges Covered:

Metal Finishing Wastewaters

Process and Non-process Wastewaters

Issuance Date: October 30, 2020

Effective Date: October 31, 2020

Expiration Date: October 30, 2025

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General Permit for the Discharge of Wastewaters from

Significant Industrial Users (SIU)

Table of Contents

Section 1. Authority

Section 2. Definitions

Section 3. Authorization under this General Permit

(a) Eligible Activities

(b) Requirements for Authorization

(c) Geographic Area

(d) Effective Date and Expiration Date of this General Permit

(e) Effective Date of Authorization

(f) Transition to and from an Individual Permit

Section 4. Registration Requirements

(a) Who Must File a Registration

(b) Scope of Registration

(c) Contents of Registration

(d) When to Submit a Modified Registration

(e) Contents of a Modified Registration…

(f) Where to File a Registration or Modified Registration

(g) Additional Information

(h) Action by Commissioner

Section 5. Conditions of this General Permit Applicable to All Discharges

(a) Effluent Limits and Conditions

(b) Monitoring Requirements

(c) Reporting Requirements

(d) Recording and Reporting Violations

(e) Operating Conditions

(f) Regulations of CT State Agencies Incorporated Into this General Permit

Section 5A. Conditions of this General Permit Applicable to Metal Finishing Wastewaters

(a) Effluent Limits

(b) Monitoring Requirements

Section 5B. Conditions of this General Permit Applicable to Process and Non-process

Wastewaters that are not Subject to Categorical Pretreatment Standards

(a) Effluent Limits

(b) Monitoring Requirements

(c) Additional Specific Operating Conditions and BMPs for Process and Non-process

Wastewaters not subject to Categorical Pretreatment Standards

(1) Boiler Blowdown Discharges

(2) Tumbling or Cleaning of Parts Wastewater Discharges

(3) Food Processing Wastewater Discharges

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(4) Printing and Photo Processing Wastewater Discharges

(5) Hydrostatic Pressure Testing Wastewater Discharges

(6) Noncontact Cooling and Heat Pump Water Wastewater

(7) Air Compressor Condensate & Blowdown

(8) Building Maintenance Wastewater

(9) Non-Destruct Testing Rinsewater

(10) Commercial Laundry Wastewater

(11) Water Treatment Wastewaters

(12) Vehicle Maintenance Wastewaters

Section 6. General Conditions

(a) Reliance on Registration

(b) Duty to Correct and Report Violations

(c) Duty to Provide Information

(d) Certification of Documents

(e) Date of Filing

(f) False Statements

(g) Correction of Inaccuracies

(h) Transfer of Authorization

(i) Other Applicable Law

(j) Other Rights

Section 7. Commissioner’s Powers

(a) Minor Variance Provision

(b) Abatement of Violations

(c) General Permit Revocation, Suspension, or Modification

(d) Public Notice of Facilities in Significant Noncompliance

(e) Filing of an Individual Permit Application

(f) Audits

Appendix A: General Definitions

Appendix B: Operation and Maintenance Plan

Appendix C: Spill Prevention and Control Plan

Appendix D: Solvent Management Plan

Appendix E: Monitoring Waiver

Appendix F1: POTW-Specific Effluent Limits

Appendix F2: Receiving POTWs for Which Phosphorus Monitoring is Required

Appendix G: CT POTWs Approved to Accept Transported, Non-domestic Wastewaters

Appendix H: Section 22a-430-4 RCSA, Appendix B, Tables II, III, V and Appendix D

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General Permit for the Discharge of Wastewaters from

Significant Industrial Users (SIU)

Section 1. Authority

This general permit is issued under the authority of section 22a-430b of the Connecticut

General Statutes.

Section 2. Definitions

The definitions of terms used in this general permit shall be the same as the definitions contained in section 22a-423 of the Connecticut General Statutes and section 22a-430-3(a) of the Regulations of Connecticut State Agencies. Additional definitions associated with this general permit are included in Appendix A of this general permit.

Section 3. Authorization Under This General Permit

(a) Eligible Activities

Provided the requirements of Section 3(b) of this general permit are satisfied, this general permit authorizes the following indirect discharges from a Significant

Industrial User, as defined in this general permit, to a Publicly Owned Treatment

Works (POTW) via sanitary sewer or through transport by a licensed waste hauler in accordance with Section 5(e)(4) of this general permit:

(1) Metal finishing wastewater, as defined in this general permit; and/or

(2) Process and non-process wastewater that is not subject to Categorical

Pretreatment Standards under 40 CFR 403.6 and 40 CFR Chapter I, subchapter N.

Any discharge of water, substance or material into the waters of the state other than those specified in this section is not authorized by this general permit, and any person or municipality which initiates, creates, originates or maintains such a discharge shall apply for and obtain authorization under section 22a-430 of the Connecticut General

Statutes prior to the occurrence of such discharge.

(b) Requirements for Authorization

This general permit authorizes the activity listed in Section 3(a) of this general permit provided:

(1) Registration

A complete and sufficient registration with respect to such activity has been filed with the commissioner and the commissioner has issued an Approval of

Registration with respect to such activity.

(2) The discharge from such activity is in compliance with all terms and conditions of this general permit including, but not limited to, the prohibitions described in

Section 5(a)(2) of this general permit.

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(3) Coastal Area Management and Permitting

Such activity is consistent with all applicable goals and policies in section 22a-

92 of the General Statutes, and will not cause adverse impacts to coastal resources as defined in section 22a-93 of the General Statutes or if such activity is located, wholly or in part, waterward of the coastal jurisdiction line in tidal, coastal or navigable waters of the State or in tidal wetlands, the activity is authorized pursuant to sections 22a-359 through 22a-363f, inclusive, or 22a-28 through 22a-35, inclusive.

(4) Endangered and Threatened Species

Such activity does not threaten the continued existence of any species listed pursuant to section 26-306 of the Connecticut General Statutes as endangered or threatened and will not result in the destruction or adverse modification of habitat designated as essential to such species.

(5) Aquifer Protection

Such discharge, if it is located within an aquifer protection area as mapped under section 22a-354b of the Connecticut General Statutes, complies with regulations adopted pursuant to section 22a-354i of the Connecticut General

Statutes.

(6) Conservation and Preservation Restrictions

Such activity, if located within a conservation or preservation restriction area, complies with section 47-42d of the Connecticut General Statutes, by providing the following documentation to the commissioner: proof of written notice to the holder of such restriction of the proposed activity’s registration pursuant to this general permit or a letter from the holder of such restriction verifying that the proposed activity is in compliance with the terms of the restriction.

(7) The registrant has certified in writing to the commissioner that a completed copy of the registration has been submitted to each applicable POTW Authority and the registrant has received written approval for connection or transport to each applicable POTW authority.

(8) Certification Requirements for Qualified Professional Engineers or Qualified

Certified Hazardous Materials Managers

The registrant has submitted to the commissioner a written certification which, at a minimum, complies with the following requirements:

(A) i) For SIUs that discharge Metal Finishing Wastewater, such certification was signed by a Qualified Professional Engineer as defined in this general permit; or

ii) For all other SIUs eligible to be covered under this general permit, such certification was signed by:

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a) a Qualified Professional Engineer as defined in this general permit;

or

b) a Qualified Certified Hazardous Materials Manager, as defined in this general permit, if the discharge requires no treatment or the treatment consists solely of pre-engineered silver recovery systems for treating printing and photoprocessing wastewater or pre-engineered oil/water separators for treating air compressor condensate and blowdown, cutting and grinding wastewater, food processing wastewater, or vehicle maintenance wastewater.

(B) such certification is not the subject of an audit as described under section

22a-430b of the Connecticut General Statutes;

(C) the Qualified Professional Engineer or Qualified Certified Hazardous

Materials Manager signing the certification has, at a minimum, completely and thoroughly reviewed this general permit and the following regarding the discharges to be authorized under such general permit: (i) all registration information provided in accordance with

Section 4(c)(2) of such general permit, (ii) the facility, based on a visual site inspection, (iii) compliance records, (iv) the Operation and

Maintenance Plan, (v) the Spill Prevention and Control Plan, (vi) the

Solvent Management Plan, if applicable, and (vii) all wastewater collection and treatment systems and monitoring equipment, including any plans and specifications, operating records and any Department approvals regarding such wastewater collection and treatment systems and monitoring equipment;

(D) (i) the Qualified Professional Engineer signing the certification has made an affirmative determination, based on the review described in Section

3(b)(8)(C) of this general permit that: (i) the Operation and Maintenance

Plan, the Spill Prevention and Control Plan and the Solvent Management

Plan, if applicable, which have been prepared in accordance with this general permit are adequate to assure that the activity authorized under this general permit, if implemented in accordance with such plans, will comply with the terms and conditions of such general permit; and (ii) all wastewater collection and treatment systems and monitoring equipment:

(aa) have been designed and installed to control pollution to the maximum extent achievable using measures that are technologically available and economically practicable; (bb) will function properly as designed based on visual inspection, compliance and operating records and implementation of the Operation and Maintenance Plan; and (cc) are adequate to ensure compliance with the terms and conditions of this general permit;

(ii) the Qualified Certified Hazardous Materials Manager signing the certification has made an affirmative determination, based on the review described in Section 3(b)(8)(C) of this general permit, that: (i) the

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Operation and Maintenance Plan and the Spill Prevention and Control Plan, which have been prepared in accordance with this general permit, are adequate to assure that the activity authorized under this general permit, if implemented in accordance with such plans, will comply with the terms and conditions of such general permit; and (ii) all wastewater collection and treatment systems and monitoring equipment: (aa) have been installed to control pollution to the maximum extent achievable using measures that are technologically available and economically practicable; (bb) will function properly based on visual inspection, compliance and operating records and implementation of the Operation and Maintenance Plan; and (cc) are adequate to ensure compliance with the terms and conditions of this general permit;

(E) (i) the Qualified Professional Engineer certifies, provided it is true and accurate, to the following statement: "I hereby certify that I am a

Qualified Professional Engineer as defined in the General Permit for the

Discharge of Wastewaters from Significant Industrial Users. I am making this certification in connection with a registration under such general permit, submitted to the commissioner by [INSERT NAME OF

REGISTRANT] for an activity located at [INSERT ADDRESS OF

PROJECT OR ACTIVITY]. I have personally examined and am familiar with the information that provides the basis for this certification, including, but not limited to, all information described in Section

3(b)(8)(C) of such general permit and I certify, based on reasonable investigation, including my inquiry of those individuals responsible for obtaining such information, that the information upon which this certification is based is true, accurate and complete to the best of my knowledge and belief. I further certify that I have made the affirmative determination required in accordance with Section 3(b)(8)(D)(i) of such general permit and that my signing this certification constitutes conclusive evidence of my having made such affirmative determination.

I understand that this certification may be subject to an audit by the commissioner in accordance with section 22a-430b of the Connecticut

General Statutes, and I agree to cooperate with the commissioner should such an audit be required, including, but not limited to providing information as may be requested in writing by the commissioner in connection with any such audit. I also understand that knowingly making any false statement in this certification may be punishable as a criminal offense, including the possibility of fine and imprisonment, under section 53a-157b of the Connecticut General Statutes and any other applicable law."

(ii) the Qualified Certified Hazardous Materials Manager certifies, provided it is true and accurate, to the following statement: “I hereby certify that I am a Qualified Certified Hazardous Materials Manager as defined in the

General Permit for the Discharge of Wastewaters from Significant

Industrial Users. I am making this certification in connection with a registration under such general permit, submitted to the commissioner by

[INSERT NAME OF REGISTRANT] for an activity located at [INSERT

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ADDRESS OF PROJECT OR ACTIVITY]. I have personally examined and am familiar with the information that provides the basis for this certification, including but not limited to all information described in

Section 3(b)(8)(C) of such general permit, and I certify, based on reasonable investigation, including my inquiry of those individuals responsible for obtaining such information, that the information upon which this certification is based is true, accurate and complete to the best of my knowledge and belief. I further certify that I have made the affirmative determination required in accordance with Section 3(b)(8)(D)(ii) of such general permit and that my signing this certification constitutes conclusive evidence of my having made such affirmative determination. I understand that this certification may be subject to an audit by the commissioner in accordance with section 22a-430b of the Connecticut General Statutes, and

I agree to cooperate with the commissioner should such an audit be required, including, but not limited to providing information as may be requested in writing by the commissioner in connection with any such audit. I also understand that knowingly making any false statement in this certification may be punishable as a criminal offense, including the possibility of fine and imprisonment, under section 53a-157b of the

Connecticut General Statutes and any other applicable law.”

(9) Certification Requirements for Registrants and other Individuals

As part of the registration for this general permit, the registrant and any other individual or individuals responsible for preparing the registration submits to the commissioner a written certification which, at a minimum, complies with the following requirements:

(A) the registrant and any other individual or individuals responsible for preparing the registration and signing the certification has completely and thoroughly reviewed, at a minimum, this general permit and the following regarding the activities to be covered under such general permit: (i) all registration information provided in accordance with

Section 4(c)(2) of such general permit, (ii) the facility, based on a visual site inspection, (iii) compliance records, (iv) the Operation and

Maintenance Plan, (v) the Spill Prevention and Control Plan, (vi) the

Solvent Management Plan, if applicable, (vii) the Monitoring Waiver

Request Form completed in accordance with Appendix E, if applicable, and (viii) all wastewater collection and treatment systems and monitoring equipment, including any plans and specifications, operating records and any Department approvals regarding such wastewater collection and treatment systems and monitoring equipment;

(B) the registrant has, based on the review described in Section 3(b)(9)(A) of this general permit, made an affirmative determination to: (i) comply with the terms and conditions of this general permit; (ii) maintain compliance with all plans and documents prepared pursuant to this general permit including, but not limited to, the Operation and

Maintenance Plan, the Spill Prevention and Control Plan, the Solvent

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Management Plan, if applicable, the Monitoring Waiver Request Form, if applicable; and (iii) properly operate and maintain all wastewater collection and treatment systems and monitoring equipment in compliance with the terms and conditions of this general permit to protect the waters of the state from pollution;

(C) such registrant certifies to the following statement: "I hereby certify that

I am making this certification in connection with a registration under the

General Permit for the Discharge of Wastewaters from Significant

Industrial Users, submitted to the commissioner by [INSERT NAME OF

REGISTRANT] for an activity located at [INSERT ADDRESS OF

PROJECT OR ACTIVITY] and that such activity is eligible for authorization under such permit. I certify that the registration filed pursuant to this general permit is on complete and accurate forms as prescribed by the commissioner without alteration of their text. I certify that I have personally examined and am familiar with the information that provides the basis for this certification, including but not limited to all information described in Section 3(b)(9)(A) of such general permit, and I certify, based on reasonable investigation, including my inquiry of those individuals responsible for obtaining such information, that the information upon which this certification is based is true, accurate and complete to the best of my knowledge and belief. I further certify that I have made the affirmative determination required in accordance with

Section 3(b)(9)(B) of such general permit and that my signing this certification constitutes conclusive evidence of my having made such affirmative determination.

I certify that a completed copy of the registration has been submitted to each applicable POTW Authority and I have received written approval for connection or transport to each applicable POTW Authority.

I certify that our facility does not use products or chemicals that may result in a discharge of mercury.

I understand that the registration filed in connection with such general permit may be denied, revoked or suspended for engaging in professional misconduct, including but not limited to the submission of false or misleading information, or making a false or inaccurate certification. I understand that the certification made pursuant to Section

3(b)(9) of this general permit may be subject to an audit by the commissioner in accordance with section 22a-430b of the Connecticut

General Statutes, and that I will be required to provide additional information as may be requested in writing by the commissioner in connection with such audit, and the registration filed in connection with such general permit may be denied, revoked or suspended as a result of such audit. As part of such audit, I understand the commissioner may require that any information prepared in accordance with this general permit to be independently certified by a Qualified Professional Engineer or Qualified Certified Hazardous Materials Manager in accordance with

DEEP-WPED-GP-029 Page 10 of 91 Rev. 10/30/2020 this general permit and that such independent certification shall be at the registrant's expense. I understand that the reasonable cost of any such audit that reveals that a false certification was submitted to the commissioner may be charged to the registrant for this general permit for which such certification was made. I also understand that knowingly making any false statement in the submitted information and in this certification may be punishable as a criminal offense, including the possibility of fine and imprisonment, under section 53a-157b of the

Connecticut General Statutes and any other applicable law."

(D) any other individual or individuals responsible for preparing the registration certifies to the following statement: "I hereby certify that I am making this certification in connection with a registration under the General Permit for the

Discharge of Wastewater from Significant Industrial Users, submitted to the commissioner by [INSERT NAME OF REGISTRANT] for an activity located at [INSERT ADDRESS OF PROJECT OR ACTIVITY] and that such activity is eligible for authorization under such permit. I certify that the registration filed pursuant to such general permit is on complete and accurate forms as prescribed by the commissioner without alteration of their text. I certify that I have personally examined and am familiar with the information that provides the basis for this certification, including but not limited to all information described in Section 3(b)(9)(A) of such general permit, and I certify, based on reasonable investigation, including my inquiry of those individuals responsible for obtaining such information, that the information upon which this certification is based is true, accurate and complete to the best of my knowledge and belief. I understand that the registration filed in connection with such general permit may be denied, revoked or suspended for engaging in professional misconduct, including but not limited to the submission of false or misleading information, or making a false or inaccurate certification. I understand that knowingly making any false statement in the submitted information and in this certification may be punishable as a criminal offense, including the possibility of fine and imprisonment, under section 53a-157b of the Connecticut General Statutes and any other applicable law."

(c) Geographic Area

This general permit applies throughout the State of Connecticut.

(d) Effective Date and Expiration Date of this General Permit

This general permit is effective on October 31, 2020 and expires five (5) years from such date on October 30, 2025.

(e) Effective Date of Authorization

(1) For eligible activities previously permitted by an individual permit, such activity is authorized by this general permit on the 1st day of the month following the date of the approval of registration. The Permittee shall continue to comply with the terms and conditions of the previously issued permit until this effective date.

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(2) For eligible activities previously authorized by the General Permit for the

Discharge of Wastewaters from Categorical Industrial Users to a Publicly

Owned Treatment Works reissued May 3, 2018 or the General Permit for

Miscellaneous Discharges of Sewer Compatible Wastewater, reissued May 3, 2018, such activity is authorized on the effective date of this general permit provided:

(A) the registrant has filed a timely and sufficient registration with the commissioner in accordance with Section 4 of this general permit on or before ninety (90) days after the effective date of this general permit; and

(B) the registrant complies with the terms and conditions of this general permit until the commissioner makes a final determination regarding such registration.

(3) For new, eligible discharges of wastewater, such discharge is authorized under this general permit on the date the approval of registration is issued by the commissioner.

(f) Transition to and from an Individual Permit

No person or municipality shall operate or conduct an activity authorized by both an individual permit and this general permit. The requirements for transitioning authorization are as follows:

(1) Transition from an Individual Permit to Authorization under this General

Permit. If an activity meets the requirements of authorization of this general permit and such operation or activity is presently authorized by an individual permit, the permittee may seek a modification to the permit to exclude such operation or activity from the individual permit or if the operation or activity is the sole operation or activity authorized by such permit, the permittee shall surrender its permit in writing to the commissioner. In either event, such permittee’s individual permit shall continue to apply and remain in effect until authorization of such operation or activity under this general permit takes effect.

(2) Transition from Authorization under this General Permit to an Individual

Permit. If an activity or operation is authorized under this general permit and the commissioner subsequently issues an individual permit for the same activity, then on the date any such individual permit is issued by the commissioner, the authorization issued under this general permit shall automatically expire.

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Section 4. Registration Requirements

(a) Who Must File a Registration

Any person or municipality seeking authorization to discharge from an eligible activity under this general permit must file a timely and sufficient registration with the commissioner which, at a minimum:

(1) meets the requirements of Section 4(c)(2) of this general permit; and

(2) includes the applicable fee specified under Section 4 of this general permit.

When a facility or activity is owned by one person or municipality but is leased or in some other way the legal responsibility of another person or municipality (the operator) it is the operator's responsibility to submit any applications required under this general permit.

(b) Scope of Registration

A registrant shall submit one registration form for all activities taking place at a single site for which the registrant seeks authorization under this general permit. Activities taking place at more than one site may not be consolidated on one registration form.

(c) Contents of Registration

(1) Fees

(A) The registration fee established by section 22a-6f of the General Statutes of:

(i) $6,250.00 for Metal Finishing Wastewater discharges (maximum daily flow) equal to or greater than 10,000 gallons per day; or

(ii) $3,125.00 for Metal Finishing Wastewater discharges with a maximum daily flow less than 10,000 gallons per day, and

(iii) $1,000 for other wastewater discharges that are eligible for coverage under this general permit shall be submitted with a registration form. A registration shall not be deemed complete and no activity shall be authorized by this general permit unless the registration fee has been paid in full.

(B) Municipalities will receive a 50% discount on fees.

(C) The registration fee shall be paid by check or money order payable to the

Department of Energy and Environmental Protection.

(D) The registration fee is non-refundable.

(2) Registration Form

A registration shall be filed on forms prescribed and provided by the

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(A) Legal name, address, and telephone number of the registrant. If the registrant is an entity transacting business in Connecticut and is required to register with the Connecticut Secretary of the State, provide the exact name as registered with the Connecticut Secretary of the State.

(B) Legal name, address, and telephone number of the owner of the property on which the subject activity is to take place.

(C) Legal name, address, and telephone number of the registrant's attorney or other representative, if applicable.

(D) Legal name, address, and telephone number of any consultant(s) or engineer(s) retained by the registrant to prepare the registration or to design or construct the subject activity.

(E) Location address of the site with respect to which the registration is submitted.

(F) Name of each applicable POTW and the receiving POTW.

(G) Date discharge was/will be initiated.

(H) Written approval issued by each applicable POTW Authority, or written approval on a form prescribed and provided by the commissioner, for connection or transport to a POTW.

(I) A plan of the site ("site plan") showing property boundaries, the location of the subject activity and discharge location(s).

(J) Discharge Information

(i) A detailed description of the authorized discharge(s). Such description shall include a detailed description of the activity generating the discharge, average rate of production, the maximum and average daily flow rates in both gallons per day and gallons per minute, the method of flow measurement and the anticipated hours of discharge, and the

Standard Industrial Classification of the operations carried out at the facility.

(a) For facilities discharging metal finishing wastewater, the description shall also list all metal finishing subcategories, as defined by 40

CFR 413 and 433, which contribute to the discharge.

(b) For facilities discharging process and non-process wastewater not subject to Categorical Pretreatment Standards, the description shall also list the categories of process and non-process wastewater described in Section 5B(b) of this general permit.

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(c) For any facility registering under this general permit, a list of the substances used or added to the wastewater, including but not limited to those substances for which effluent limits are specified in

Section 5, 5A or 5B of this general permit and those substances listed in Appendix B Table II, III and V or Appendix D of section

22a-430-4 of the Regulations of Connecticut State Agencies. Any such substances shall be identified by their generic chemical names and Chemical Abstract System (CAS) number (all substances are listed in Appendix H of this general permit).

(ii) Analytical Data

(a) For new, previously unpermitted discharges, supporting calculations or information from similar discharges to project expected discharge characteristics. Following the issuance of the Approval of

Registration under this general permit, the Permittee will be required to sample the discharge(s) authorized under the Approval of Registration within 30 days of initiating the discharge, conduct wastewater analyses as indicated in the Approval of Registration, and submit for the commissioner’s review a completed discharge analysis from the application for registration under this general permit.

(b) For existing discharges previously authorized by an individual permit, analytical data from at least one sample taken within the last six months prior to registration submission that is representative of typical daily operations and one sample that is representative of anticipated maximum effluent pollutant concentration(s), which are to be used in characterizing the chemical composition of each discharge and sub-discharge (e.g. cyanide or hexavalent chromium pretreatment) to be covered under this general permit reported on a form provided by the commissioner. Analytical data shall be provided for pH, pollutants listed in Section 5A(a) or 5B(a) of this general permit, all parameters necessary to demonstrate compliance with effluent limitations listed in Section 5A(a) or 5B(a) of this general permit and those listed in section 22a-430-4 Appendix B or

D of the Regulations of Connecticut State Agencies that are known or suspected to be present in the discharge.

(c) For the renewal of an existing registration for a discharge previously authorized by the General Permit for the Discharge of

Wastewaters from Categorical Industrial Users to a Publicly

Owned Treatment Works or the General Permit for Miscellaneous

Discharges of Sewer Compatible Wastewater, a summary of analytical data from the previous two years.

(d) If any pollutant identified as an emerging contaminant is currently or reasonably known to have been handled, stored, released or disposed of at the site where the subject wastewater originates, the subject

DEEP-WPED-GP-029 Page 15 of 91 Rev. 10/30/2020 wastewater shall also be analyzed to determine the concentration of such emerging contaminants(s) if an analytical method for such pollutant has been approved pursuant to 40 CFR 136. If necessary, any further monitoring during the term of the permit will be indicated in the

Approval of Registration.

(K) A description of the best management practices, such as conservation and reuse of water, minimization, substitution and reuse of chemicals, and other pollution prevention measures, implemented or to be implemented by the registrant to prevent or minimize any adverse environmental effects of the subject discharge.

(L) An accurate description of any wastewater treatment processes, such as neutralization, oil/water separation, and precipitation of solids or metals, which the registrant utilizes or will utilize to achieve compliance with any of the effluent limitations specified in Section 5A(a) or 5B(a) of this general permit. This description shall include a diagram which clearly shows all treatment units, monitoring equipment and sampling locations.

(M) A line drawing of the water flow through the facility which clearly shows

a) the intake source (e.g. well, city water, river); b) all points of chemical addition into any treatment units; c) sampling and flow meter locations; d) all separate production operations with intake and discharge points of each operation; e) treatment units with intake and discharge points of each unit;

and f) a water balance that indicates approximate average and maximum daily flows at intake and discharge points of all separate production operations, treatment units and between processes.

(N) A process flow diagram identifying each process step or tank, its work flow position, size, contents, ultimate disposal location and the discharge rate of its contents. Include in the process flow diagram any treatment unit(s) integrated within a process. Indicate in the diagram if countercurrent rinsing is applied and indicate the direction of the countercurrent rinsing.

(O) A Monitoring Waiver Request Form completed in accordance with

Appendix E, as applicable.

For the registration of an activity previously registered under the General

Permit for the Discharge of Wastewaters from Categorical Industrial

Users to a Publicly Owned Treatment Works, a list of exemptions or waivers that were granted in the Approval of Registration under such general permit.

(P) For Metal Finishing wastewater discharges, a Solvent Management Plan, if applicable. Registrants currently maintaining a Department approved

Solvent Management Plan shall resubmit the plan with the registration for approval.

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(Q) A written certification, signed by a Qualified Professional Engineer or

Qualified Certified Hazardous Materials Manager, which complies with the requirements of Section 3(b)(8) of this general permit.

(R) A written certification, signed by the registrant and any other individual or individuals responsible for preparing the registration, which complies with the requirements of Section 3(b)(9) of this general permit.

(S) A completed Connecticut DEEP NetDMR Subscriber Agreement.

(T) For potable water treatment facilities only—water treatment facilities that discharge clarifier tank blowdown, filter media backwash, sludge dewatering wastewater or other residuals handling wastewaters with Total

Suspended Solids (TSS) levels in excess of 600 mg/l directly to a sanitary sewer line or transport residuals by truck to a POTW shall submit a plan for the management of water treatment wastewaters and residuals. Such plan shall, at a minimum, include the following information:

(i) the sources of such wastewaters

(ii) the expected average and maximum daily flows in gallons per day of wastewaters

(iii) the source of the suspended solid (including the identification of any coagulant)

(iv) the frequency of discharge

(v) for residuals, the percent dry solids and quantity per shipment and per year

(vi) the name of the POTW receiving the wastewater or residual

(vii) which treatment unit of the POTW the wastewaters will be discharged to (e.g. headworks, solids handling, etc.)

(viii) standard operating procedures for residuals management at the facility which shall include:

a. a site map

b. a summary of the operation and maintenance plans for any lagoons or clarifiers

c. a description of where any solid residuals removed may be placed, stored or disposed of, and

d. the techniques used to prevent the removed solids from re-entering the surface waters from any on-site storage.

(ix) From a representative sample of residuals being removed during the treatment process, a chemical analysis of its content (percent solids and total metals in mg/kg). The following metal concentrations will be determined:

Arsenic (As), Barium (Ba), Cadmium (Cd), Chromium (Cr), Copper (Cu), Lead (Pb), DEEP-WPED-GP-029 Page 17 of 91 Rev. 10/30/2020

Mercury (Hg), Selenium (Se)

Silver (Ag).

(x) For residuals, provide a feasibility analysis of treatment and disposal options for residuals other than discharge to a POTW. Such analysis shall include:

a. a discussion of the alternatives and

b. approximate cost and time frame necessary for implementation of such alternatives at that facility.

(d) When to Submit a Modified Registration

A modified registration shall be submitted:

(1) To correct inaccurate or misleading information previously submitted to the Department, in accordance with Section 6(g) of this general permit,

(2) Prior to any significant facility modifications, as described in Section

5(e)(3)(A) of this general permit, or

(3) At least fifteen (15) days prior to expanding or significantly altering its wastewater collection or treatment system or its method of operation as described in Section 5(e)(3)(B) of this general permit, or

(4) To request a monitoring waiver for a new parameter after an Approval of

Registration has been issued.

(e) Contents of a Modified Registration

A modified registration shall be filed on forms described in Section 4(c) of this general permit. Such modified registration shall, at a minimum, include

Sections 4(c)(2)(A)-(F) of the registration form and any additional information required by Section 5(e)(3)(A) for a facility modification. For all registration section(s) remaining unchanged from the initial registration, a registrant may indicate “Information Unchanged” in the appropriate section(s) of the registration.

(f) Where to File a Registration or Modified Registration

(1) A registration or modified registration shall be filed with the commissioner at the following address:

CENTRAL PERMIT PROCESSING UNIT

DEPARTMENT OF ENERGY AND ENVIRONMENTAL PROTECTION

79 ELM STREET

HARTFORD, CT 06106-5127

DEEP-WPED-GP-029 Page 18 of 91 Rev. 10/30/2020

(2) The registrant shall submit a copy of any registration or modified registration filed with the commissioner to each applicable POTW Authority.

(g) Additional Information

The commissioner may require a registrant to submit additional information, which the commissioner reasonably deems necessary to evaluate the consistency of the subject activity with the requirements for authorization under this general permit.

(h) Action by Commissioner

(1) The commissioner shall review a registration or modified registration and make a technical determination based on such review that the discharge will not cause pollution of the waters of the state or disapprove a registration in accordance with Section 4(h)(2) of this general permit.

If the commissioner makes a technical determination that the discharge will not cause pollution of the waters of the state, then the commissioner shall provide an Approval of Registration.

The commissioner may reject without prejudice a registration or modified registration if it is determined that it does not satisfy the requirements of Section

4(c), Section 4(d), or Section 4(e) of this general permit and more than thirty

(30) days have elapsed since the commissioner requested that the registrant submit additional information. Any registration re-filed after such a rejection shall be accompanied by the fee specified in Section 4(c)(1) of this general

(2) The commissioner shall disapprove a registration or modified registration if it is found that the subject activity is:

(A) Inconsistent with the requirements for authorization under Section 3 of this general permit; OR

(B) Unable to comply with the effluent limitations and prohibitions described in Section 5, 5A or 5B of this general permit; OR

(C) Through the imposition of the terms and conditions in this general permit, unable to ensure that the discharge, either singly or in combination with other discharges, would not cause or contribute to pollution, would not endanger human health or the environment or would not be consistent with the Connecticut Water Quality Standards; OR

(D) Deemed to be ineligible for coverage under this general permit for any other reason provided by law.

(3) Disapproval of a Registration or modified registration under this subsection shall constitute notice to the registrant that the subject activity may not lawfully be conducted or maintained without the issuance of an individual permit.

DEEP-WPED-GP-029 Page 19 of 91 Rev. 10/30/2020

(4) The commissioner may approve a registration or modified registration with reasonable conditions. If the commissioner approves a registration with conditions, the permittee shall be bound by such conditions as if they were a part of this general permit.

(5) Rejection, Disapproval, or Approval of a Registration or Modified Registration shall be in writing.

DEEP-WPED-GP-029 Page 20 of 91 Rev. 10/30/2020

Section 5. Conditions of This General Permit Applicable to All Discharges

The permittee shall at all times continue to meet the requirements for authorization set forth in Section 3 of this general permit. In addition, the permittee shall assure that, at a minimum, activities authorized by this general permit are conducted in accordance with the following conditions:

(a) Effluent Limits and Conditions

(1) Effluent Limits

(A) Effluent limits for metal finishing wastewater discharges are listed in

Section 5A(a) of this general permit.

(B) Effluent limits for process and non-process wastewater discharges not subject to Categorical Pretreatment Standards are listed in Section 5B(a) of this general permit.

(2) Prohibitions

(A) Wastewater discharged under the authority of this general permit shall not for any reason cause or threaten either singly or in combination with other discharges:

(i) Interference or adverse effect upon the operation of the POTW;

(ii) Interference or adverse effect upon the POTW’s sludge handling, use or disposal, including but not limited to noncompliance with any federal, state, local laws, regulations or ordinances;

(iii) The POTW to exceed its influent design loading parameters;

(iv) The POTW to violate its permit, including but not limited to exceeding its permit limits;

(v) A worsening of any condition which is causing the POTW to exceed its influent design loading parameters or violate its permit; or

(vi) Pass through of any substance into the receiving waters which then causes or threatens pollution.

(B) Wastewater discharged under the authority of this general permit shall not:

(i) contain any substance which causes or threatens a fire or explosion hazard in each applicable POTW, including but not limited to, wastewaters with a closed cup flashpoint of less than 140oF (60oC) using the test methods specified in 40 CFR 261.21.

(ii) cause or threaten corrosive structural damage to each applicable POTW, or have a pH of less than 5.0 or more than 12.0 Standard Units. (Note that, as stated at Sections 5A(a)(1) and 5B(a)(1) of this general permit, local ordinances and regulations may have a more limited pH range.)

(iii) contain solid or viscous pollutants in amounts which will cause or threaten obstruction of flow in the sanitary sewer system or each

DEEP-WPED-GP-029 Page 21 of 91 Rev. 10/30/2020 applicable POTW.

(iv) contain heat in amounts which will inhibit biological activity within each applicable POTW, nor contain heat in such quantities that the influent temperature at the POTW exceeds 104oF (40oC).

(v) contain pollutants which result in the presence of toxic gases, vapors or fumes within each applicable POTW in a quantity that may cause acute worker health or safety problems.

(vi) contain pollutants in a quantity or concentration which may cause or contribute to excessive foaming within each applicable POTW or which may cause foaming within the POTW’s effluent.

(vii) contain either singly or in combination with other discharges any pollutant in sufficient amounts to cause acute worker health and safety problems, problems in the collection system or pass through or interference with each applicable POTW.

(viii) contain either singly or in combination with other discharges flow in excess of the hydraulic capacity of each applicable POTW or its conveyance system.

(ix) contain mercury.

(x) if trucked or hauled, be introduced into a POTW except at discharge points designated by the POTW.

(C) The use or addition of water to dilute a discharge of wastewater in order to meet any effluent limit or condition of this general permit is prohibited.

(3) Other Conditions

(A) The permittee shall maintain in full effect all best management practices (BMPs) needed to comply with any of the terms and conditions of this general permit.

Such BMPs shall be developed and implemented consistent with sound and recognized engineering principles and include but not be limited to water conservation, chemical substitution/reuse and all other pollution prevention measures.

(B) The permittee shall ensure that all discharges authorized by this general permit are in conformance with the sewer use ordinance of each applicable POTW

Authority conveying or receiving the discharge, and that all required local permits and approvals have been obtained for the discharges authorized by this general permit.

(C) The discharge shall be totally enclosed in piping from the source to a municipal sanitary sewer line unless operating conditions require otherwise. Best management practices shall be used for chemical and fuel storage to prevent

DEEP-WPED-GP-029 Page 22 of 91 Rev. 10/30/2020 spillage that could be received by floor drains, trenches, etc.

(D) Any spill or release or leakage of any chemical liquid shall be immediately cleaned up and disposed of in accordance with all applicable state and federal law. In no case shall such a chemical liquid be disposed of in any floor drain, toilet, sink, sanitary sewer, storm drain, surface water body or on the ground.

(b) Monitoring Requirements

(1) Monitoring requirements for metal finishing wastewaters are listed in Section

5A(b) of this general permit.

(2) Monitoring requirements for process or non-process wastewaters not subject to

Categorical Pretreatment Standards are listed in Section 5B(b) of this general

(c) Reporting Requirements

(1) Results of chemical analyses shall be reported to the Bureau of Materials

Management and Compliance Assurance on a Discharge Monitoring Report

(DMR) each month. DMRs shall also include the Average Daily Flow and the

Maximum Daily Flow for each month. DMRs shall be submitted by the last day of the month following the month in which samples are taken. Should a discharge not occur during a sampling month or quarter, a DMR shall still be submitted indicating "NO DISCHARGE".

(A) Timeline for Commencement of Electronic Reporting using NetDMR

i) Prior to one-hundred and twenty (120) days after the approval of registration for coverage under this general permit, the permittee may either submit monitoring data and other reports to the Department in hard copy form or electronically using NetDMR, a web-based tool that allows permittees to electronically submit DMRs and other required reports through a secure internet connection.

ii) Unless otherwise approved in writing by the commissioner, no later than one-hundred and twenty (120) days after the approval of registration for coverage under this general permit, the permittee shall begin reporting electronically using NetDMR.

(B) DMR Due Date

DMRs shall be submitted electronically to the Department no later than the last day of the month following the month in which samples are taken.

Once a permittee begins submitting reports using NetDMR, it shall no longer be required to submit hard copies of DMRs or other reports associated with this general permit to the Department.

(2) Copies of all DMRs shall be submitted concurrently to the applicable POTW

Authority(ies) involved in the collection and treatment of the permitted

DEEP-WPED-GP-029 Page 23 of 91 Rev. 10/30/2020 discharge.

(3) Except for continuous monitoring, any monitoring required more frequently than monthly shall be reported on an attachment to the DMR. All individual sample results that are used to calculate a result that is reported in NetDMR shall be attached in table format to the respective DMR.

(4) In accordance with Section 5(e)(2)(C) of this general permit, a permittee discharging metal finishing wastewater may, in lieu of analyzing for Total Toxic

Organics,…