GP Comprehensive Permit.pdf

Bureau of Materials Management and Compliance Assurance

DEEP-WPED-GP-028 Page 1 of 63 Rev. 12/14/2017

Comprehensive General Permit for Discharges to

Surface Water and Groundwater

Issuance Date: December 14, 2017

Effective Date: March 30, 2018

Expiration Date: March 29, 2023

Water Permitting and Enforcement Division

79 Elm Street Hartford, CT 06106

860-424-3025

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

DEEP-WPED-GP-028 Page 2 of 63 Rev. 12/14/2017

Comprehensive General Permit for Discharges to

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) Renewal Registration Timeline…………

(c) Contents of Registration

(d) Scope of 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

(a) Operating Conditions

(b) Effluent Limits for Discharges to Surface Water

(c) Monitoring Requirements for Discharges to Surface Water

(d) Effluent Limits for Discharges to Groundwater

(e) Monitoring Requirements for Discharges to Groundwater

(f) Reporting Requirements

(g) Record Keeping Requirements

(h) Recording and Reporting Violations

(i) Regulations of CT State Agencies Incorporated into this General Permit

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

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Section 7. Commissioner’s Powers

(a) Abatement of Violations

(b) General Permit Revocation, Suspension, or Modification

(c) Filing of an Individual Permit Application

Appendix A: General Definitions

Appendix B: Non-contact Cooling Water—Estimated Receiving Water 7Q10

Appendix C: Water Treatment Wastewater—Estimated Receiving Water 7Q10

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Comprehensive General Permit for Discharges to

Section 1. Authority

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

Section 3. Authorization under This General Permit

(a) Eligible Activities

This general permit authorizes the discharge of the following wastewaters (as defined in this general permit) to a surface water or groundwater:

Non-contact cooling or geothermal heat pump water

Water treatment wastewater

Hydrostatic pressure testing of natural gas and petroleum tanks and pipelines wastewater

Potable water system maintenance of tanks and pipelines wastewater

Fire suppression testing wastewater

Hydrant flushing wastewater

Boiler blowdown wastewater (to groundwater only).

Wastewater discharges to surface water with an instream waste concentration greater than 15% are not eligible for coverage under this general permit and are required to obtain an individual permit pursuant to Section 22a-430 of the

General Statutes (see footnote 1 of Table 5.3, below, for calculation of instream waste concentration).

(b) Requirements for Authorization

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

(1) Such activity is in compliance with the registration requirements of

Section 4 of this general permit.

(2) Such wastewater is discharged to either a surface water and/or to groundwater in accordance with Table 3-1 of this general permit:

Table 3.1—Authorized Discharge Locations for Various Wastewater Categories

Category of Discharge Groundwater

Class Surface Water Class Reservoirs, Lakes1

Noncontact Cooling or

Geothermal Heat Pump

Water

All (if no treatment chemicals added)

AA, A, SA (if no treatment chemicals added)

B, SB (if treatment chemicals added) (Receiving stream must have minimum 10:1 dilution at 7Q10 for

AA, A, and B waters, and 10:1 dilution at low tide for SA and SB waters)

Not Authorized

Water Treatment

Wastewater All All Reservoirs, lakes1

Hydrostatic Pressure

Testing of Natural Gas and

Petroleum Tanks/Pipelines

Wastewater

Not Authorized A, SA, B, SB (if erosion control BMPs used)

(Receiving stream must have minimum 10:1 dilution at ambient flow)

Not Authorized

Potable Water System

Maintenance of

Tanks/Pipelines Wastewater

All (if erosion control BMPs used)

All (if dechlorination and erosion control BMPs used)

(Receiving stream must have minimum 10:1 dilution at ambient flow)

All (if dechlorination and erosion control BMPs used)

Fire Suppression All

(if erosion control BMPs used)

All (if dechlorination and erosion control BMPs used)

All (if dechlorination and erosion control BMPs used)

Hydrant Flushing All

(if erosion control BMPs used)

All (if dechlorination and erosion control BMPs used)

All (if dechlorination and erosion control BMPs used)

Boiler Blowdown All (if no treatment chemicals added) Not Authorized Not Authorized

1Any new discharge to a lake must be consistent with the Antidegradation Standards of section 22a-426-8 of the Regulations of

Connecticut State Agencies.

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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 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 activity, if it is located within an aquifer protection area as mapped under section

22a-354b of the General Statutes, complies with regulations adopted pursuant to section

22a-354i of the 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 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) Wild and Scenic Rivers Act

Such activity must be consistent with the Wild and Scenic Rivers Act (16 U.S.C. 1271-

1287) for those river components and tributaries which have been designated as Wild and

Scenic by the United States Congress. Further, such activity must not have a direct and adverse effect on the values for which such river designation was established.

(8) Antidegradation Standards

Such activity is consistent with the Antidegradation Standards of section 22a-426-8 of the

Regulations of Connecticut State Agencies.

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(9) Water Diversion Policy Act

Such activity is consistent with the Water Diversion Policy Act which requires that any person or municipality maintaining a diversion at a rate exceeding 50,000 gallons in any twenty- four hour period shall:

(A) have in effect a valid license issued by the commissioner pursuant to sections 22a-

368 or 22a-378a of the General Statutes, or

(B) be exempt pursuant to section 22a-377(b)-1 of the Regulations of Connecticut

State Agencies.

(10) New Discharges to Impaired Waters or Waters with Total Maximum Daily Loads

Except for discharges which occur no more than once every three months and are of a duration not longer than 48 hours, a new discharge is not authorized to an impaired water listed in the most recent Connecticut Integrated Water Quality Report of waters listed pursuant to Clean Water Act section 303(d) and 305(b) unless the permittee provides to the commissioner the following documentation to support a showing that the discharge is not expected to cause or contribute to an exceedance of a water quality standard:

(A) For discharges of pollutants which cause or contribute to the impairment of a water body segment without an established Total Maximum Daily Load (TMDL), the permittee must provide data and other technical information to the commissioner sufficient to demonstrate that the discharge of the pollutant identified as an indicator of the impairment will meet in-stream water quality criteria at the point of discharge to the waterbody.

For discharges to waterbody segments impaired for Aquatic Life Uses, discharges shall not contain concentrations of any pollutants with a Water Quality Criteria

(WQC) identified in Table 3 of section 22a-426-9 of the Regulations of

Connecticut State Agencies in concentrations greater than the more restrictive of the chronic aquatic life criteria or applicable human health criteria.

(B) For discharges to waters with an established Total Maximum Daily Load

(TMDL), the commissioner must determine that there are sufficient remaining

Waste Load Allocations in the TMDL to allow the discharge and that existing dischargers to the waterbody are subject to compliance schedules designed to bring the waterbody into attainment with water quality standards.

To be eligible for authorization under this subsection, the registrant must receive a written determination from the commissioner that the discharge will not contribute to the existing impairment.

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(11) Existing Discharges to Impaired Waters

For previously authorized discharges to impaired waterbody segments or other sensitive areas, the commissioner may require additional control measures or may require authorization under an individual permit pursuant to Sections 4(h) (Action by

Commissioner) and 3(f)(Transition to and from an Individual Permit) of this general permit.

(12) Professional Certifications

As required by Section 4(c)(2)(Q) of this general permit, the registrant has submitted to the commissioner a written certification which, at a minimum, complies with the following requirements:

(A) such certification was signed by a Qualified Professional as defined in this general permit;

(B) such certification is not the subject of an audit as described under section 22a-

430b of the General Statutes;

(C) the Qualified Professional signing the certification has, at a minimum, completely and thoroughly reviewed this general permit and the following regarding the discharges to be authorized under this general permit: (i) all registration information provided in accordance with Section 4(c)(2) of this general permit, (ii) the facility, based on a site inspection, (iii) compliance records, (iv) 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) the Qualified Professional signing the certification has made an affirmative determination, based on the review described in Section 3(b)(12)(C) of this general permit, that any treatment or Best Management Practices are adequate to assure that the activity to be authorized under this general permit will comply with the terms and conditions of such general permit and all wastewater collection and treatment systems and monitoring equipment: (i) have been designed and installed to control pollution to the maximum extent achievable using measures that are technologically available and economically practicable, (ii) will function properly as designed based on visual inspection, compliance and operating records, and (iii) are adequate to ensure compliance with the terms and conditions of this general permit;

(E) such Qualified Professional certifies, provided it is true and accurate, to the following statement: "I hereby certify that I am a Qualified Professional as defined in the Comprehensive General Permit for Discharges to Surface Water and Groundwater. I am making this certification in connection with a registration under such general permit, submitted to the commissioner by [INSERT NAME

DEEP-WPED-GP-028 Page 9 of 63 Rev. 12/14/2017

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)(12)(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)(12)(D) of this 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 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

General Statutes and any other applicable law."

(13) 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, (iii) 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)(13)(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, 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

DEEP-WPED-GP-028 Page 10 of 63 Rev. 12/14/2017 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] 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)(13)(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)(13)(B) of this general permit and that my signing this certification constitutes conclusive evidence of my having made such affirmative determination.

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)(13) of this general permit may be subject to an audit by the commissioner in accordance with section 22a-430b of the 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 be independently certified by a Professional Engineer in accordance with 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 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 such general permit, submitted to the commissioner by [INSERT NAME OF REGISTRANT] for an activity located at [INSERT ADDRESS OF PROJECT OR ACTIVITY] and that

DEEP-WPED-GP-028 Page 11 of 63 Rev. 12/14/2017 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)(13)(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 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 March 30, 2018 and expires on March 29, 2023.

(e) Effective Date of Authorization

(1) For those persons not required to submit a registration, pursuant to

Section 4(a)(1) of this general permit, the effective date of authorization under this general permit is the same as the effective date of the general permit or the date the subject discharge is initiated, whichever is later.

(2) For those persons required to submit a registration, pursuant to Section

4(b)(1) of this general permit, the effective date of authorization under this general permit is the date a registration which meets the requirements of Section 4 of this general permit is received by the commissioner.

(3) (A) For new facilities required to submit a registration and receive approval of authorization from the commissioner, pursuant to

Section 4(a) of this general permit, the effective date of authorization of this general permit is the date the commissioner issues a written approval of registration.

(B) For facilities previously permitted by an individual permit, an activity is authorized by this general permit on the 1st day of the

DEEP-WPED-GP-028 Page 12 of 63 Rev. 12/14/2017 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 the date such activity is authorized by this general permit.

(f) Transition to and from an Individual Permit

No person 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.

Section 4. Registration Requirements

(a) Who Must File a Registration

(1) Any person who or municipality which initiates, creates, originates or maintains a discharge of the following wastewaters (as defined in this general permit) to groundwater or a surface water:

Non-contact cooling water

Geothermal heat pump water

Water treatment wastewater

Hydrostatic pressure testing of natural gas and/or petroleum tanks and/or pipelines wastewater

Potable water system maintenance of tanks and pipelines wastewater

Fire suppression system testing wastewater

Hydrant flushing wastewater

Boiler blowdown wastewater (to groundwater only).

DEEP-WPED-GP-028 Page 13 of 63 Rev. 12/14/2017 shall use Registration Table 4.1 of this general permit to determine if:

A) a registration form which meets the requirements of Section 4 of this general permit is required, and

B) the applicable fee must be filed with the commissioner.

If the source or activity generating the discharge for which a registration is submitted under this general permit is owned by one person or municipality (the owner) 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 the registration required by this general permit and maintain compliance with the terms and conditions of this general permit.

(2) Exemptions from Registration (All discharges exempted from registration must still follow conditions described in Section 5 of this general permit).

(A) Non-contact Cooling Water and Geothermal Heat Pump

Exemptions from Registration

(i) A discharge of non-contact cooling water condensate or geothermal heat pump water condensate of 500 gallons per day or less is exempt from registration, monitoring, and fee requirements provided such discharge meets the requirements of Section 3 and conditions of Section 5 of this general permit;

(ii) A geothermal heat pump discharge from a residential building, derived solely from a once-through heat exchange system which does not receive chemical additions of any kind and discharges to the groundwater is exempt from registration, provided the requirements of Section 3 and conditions of

Section 5 of this general permit are met;

(iii) A discharge of non-contact cooling and geothermal heat pump water to the groundwater which is less than 5,000 gallons per day.

(B) Water Treatment Wastewater Exemptions from Registration

(i) A discharge consisting only of raw water;

(ii) Any discharge from pump leakage, sampling taps, water treatment wastewater laboratory wastewater, or on-line

DEEP-WPED-GP-028 Page 14 of 63 Rev. 12/14/2017 analytical instrumentation which are not discharged directly to a surface water body;

(iii) Any discharge generated from the backwash of filtration, reverse osmosis, oxidation/filtration, ion exchange units that treat water from a source of potable water provided the discharge is less than 500 gallons per day and directed to the groundwater of the state;

(iv) Any discharge of water supply system tank and pipeline draining wastewater (including hydrostatic tests) which meets conditions in Section 5(a)(3)(O) and Section 5(a)(3)(P) of this general permit;

(v) Any discharge from well rehabilitation that complies with the

Best Management Practices specified in Section 5(a)(3)(S) of this general permit.

(C) Other Wastewater Discharge Exemptions from Registration

(i) A discharge of hydrant flushing wastewater which follows conditions listed in Section 5(a)(6) of this general permit;

(ii) A discharge of fire suppression system testing wastewater which is less than 5,000 gallons per day.

(b) Renewal Registration Timeline

Facilities with existing authorization under the following general permits, which expire on March 29, 2018, that wish to seek authorization under this general permit, must file a registration for authorization within 90 days of the effective date of this general permit:

General Permit for the Discharge of Non-contact Cooling Water;

General Permit for the Discharge of Hydrostatic Pressure Testing

Wastewaters;

General Permit for the Discharge of Water Treatment Wastewater.

For enforcement purposes, failure to submit a registration within 90 days of the effective date of this general permit will be considered to be discharging without a permit.

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1Municipalities will receive a 50% discount on fees.

2New discharges of water treatment wastewater generated from the backwash of filtration, reverse osmosis, oxidation/filtration, or ion exchange units greater than 500 gallons per day and directed to the groundwater of the state will require approval.

Table 4.1—Registration and Fee Requirements

Discharge

Category

Discharge

Location

Maximum

Daily Flow

(gpd)

Registration

Only

Registration with Approval Fee1 Registration

Exemptions

Monitoring

Exemptions

Noncontact Cooling Water

Surface Water All Flows Yes No $625

See Section 5(c)(2)(A) Groundwater

<5000 No No NA See Section

4(a)(2)(A)(i) & (ii) >5000 Yes No $625

Water Treatment Wastewater

Surface Water All Flows Yes No $625 See Section

4(a)(2)(B) See Section 5(c)(2)(B)

Groundwater <500 No No NA

>500 Yes No2 $625

Hydrostatic Pressure Testing of

Natural Gas/Petroleum Tanks and/or Pipelines Wastewater

Surface Water All Flows No Yes $1250 None None

Groundwater

Potable Water System

Maintenance of Tanks/Pipelines

Wastewater

Surface Water All Flows No No NA NA None

Groundwater

Fire Suppression System Testing

Wastewater

Groundwater <5000 No No NA

See Section

4(a)(2)(C)(ii) See Section 5(c)(2)(C)(i)

>5000 Yes No $625

Surface Water <5000 No No NA

>5000 Yes No $625

Hydrant Flushing Wastewater Surface or

Groundwater All Flows No No NA

See Section

4(a)(2)(C)(i)

See Section

5(c)(2)(C)(ii)

Boiler Blowdown to Ground (to which no chemicals are added) Groundwater <5,000 No No NA NA None

Geothermal Heat Pump Water, Residential Building Groundwater

<50,000 No No NA See Section

4(a)(2)(A)(ii)

See Section 5(c)(2)(A) >50,000 —

<500,000 Yes No $625

Geothermal Heat Pump Water, Residential Institution or

Nonresidential Building

Surface or

Groundwater <500,000 Yes No $625

See Section

4(a)(2)(A)(iii)

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(c) Contents of Registration

(1) Fees

(A) (i) For any discharge which requires registration only, a registration fee of $625 for any person or $312.50 for any municipality shall be submitted with a completed registration form.

(ii) For any discharge which requires an approval of registration, a registration fee of $1250 for any person or $625 for any municipality shall be submitted with a completed registration form.

(iii) A registration shall not be deemed complete and no discharge shall be authorized by this general permit unless the registration fee has been paid in full.

(B) The registration fee shall be paid by check or money order payable to the Department of Energy and Environmental

Protection.

(C) The registration fee is non-refundable.

(2) Registration Form

A registration shall be filed on forms prescribed by the commissioner and shall include but not be limited to the following:

(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, and name of the site for which the registration is being submitted;

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(F) Maximum daily total flow in gallons per day, the maximum instantaneous flow rate in gallons per minute for each discharge;

(G) The method of flow measurement of each discharge (e.g.

estimation, flow meter, etc.);

(H) A description of the duration of each discharge (batch or continuous, hours per day);

(I) An estimated date of when each discharge began or will begin;

(J) A detailed description of the process or activity generating each discharge and the type(s) of wastewater to be discharged;

(K) 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(b) 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;

(L) A description of any wastewater treatment processes, such as neutralization, filtration, or precipitation of solids or metals, etc.

which the registrant utilizes or will utilize to achieve compliance with any of the effluent limits specified in Section 5(b) of this general permit;

(M) For each outfall point:

(i) name of stream or surface water body receiving the discharge,

(ii) the Water Quality Classification of the receiving surface water body, whether it is listed as impaired in the most recent

Connecticut Integrated Water Quality Report pursuant to

Clean Water Act section 303(d) and 305(b), and the cause of impairment,

(iii) the latitude and longitude for each discharge point,if discharge is to the ground, the name of the nearest downgradient stream, wetland, or other water body and the distance to it;

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(N) Monitoring Plan

For all discharges requiring monitoring in accordance with Section

5(c) of this general permit, a monitoring plan which specifies for each discharge the:

i) monitoring location,

ii) sample type,

iii) parameters to be monitored,

iv) frequency of monitoring,

v) method of flow measurement,

vi) record keeping and reporting requirements;

(O) For existing Water Treatment Wastewater and Non-Contact

Cooling Water discharges to surface water, one screening analysis from the testing of a sample taken within 90 days of registration

(or the most recent sampling event) for pollutants specified below:

i) If additives containing nitrogen or phosphorus were used, the sample shall be tested for total Kjeldahl nitrogen, nitrates, and total phosphorus;

ii) For noncontact cooling water discharges from a cooling tower or water treatment wastewaters from an outdoor lagoon, the sample shall be tested for: 1) E-coli bacteria (for discharges to fresh water) or 2) enterococci and fecal coliform bacteria (for discharges to saline waters).

(P) Plans and specifications for the treatment system of any discharge generated from the backwash of filtration, reverse osmosis, oxidation/filtration, or ion exchange units that treat water from a well used as a source of potable water provided the discharge is greater than 500 gallons per day and directed to the groundwater of the state;

(Q) A written certification signed by a Qualified Professional which complies with Section 3(b)(12) of this general permit;

(R) A written certification, signed by the registrant and any other individual or individuals responsible for preparing the registration, DEEP-WPED-GP-028 Page 19 of 63 Rev. 12/14/2017 which complies with the requirements of Section 3(b)(13) of this general permit.

(3) Special Registration Requirements

(A) Non-contact Cooling Water

(i) An indication of the source of the cooling water

(groundwater, surface water, or public water supply);

(ii) An indication of any known source of contamination;

(iii) For discharges to non-tidal surface waters, the 7Q10 of the receiving stream;

(iv) For tidal surface waters, available dilution at low tide as determined by the commissioner;

(v) For existing discharges, a table summarizing the last two years of monitoring data including flow, temperature, and aquatic toxicity testing results including chemical parameters;

(vi) For any discharge to surface water, a signed NetDMR

Subscriber Agreement.

(B) Water Treatment Wastewater

(i) For potable water treatment facilities, a list of all water storage tanks associated with that facility;

(ii) An 8 ½” by 11” site map showing location of treatment lagoons and discharge point locations;

(iii) For discharges to surface water, the 7Q10 of the receiving stream;

(iv) For each discharge, whether the discharge contains residual chlorine;

(v) For existing discharges, a table summarizing last 2 years of monitoring data – including flow, and aquatic toxicity testing results including chemical parameters;

(vi) Residuals Management Plan -- For water treatment facilities producing solid or semi-solid residuals removed during the

DEEP-WPED-GP-028 Page 20 of 63 Rev. 12/14/2017 treatment process, a Residuals Management Plan must be developed which addresses the following:

(a) The various types of residuals produced (e.g.

clarification process waste or filter backwash waste) and their average solids content;

(b) 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)

Mercury (Hg)

Selenium (Se)

Silver (Ag)

(c) Standard operating procedures for residuals management and maintenance at the water treatment facility. At a minimum, a summary of the operation and maintenance plans for any lagoons, a description of where the solid material removed is to be placed, stored, and disposed of as well as the techniques used to prevent the removed solids from reentering the surface waters from any onsite storage;

(vii) For water treatment facilities seeking a variance pursuant to

Section 5(a)(3)(T) of this general permit, a written request for such variance must be filed using forms prescribed by the commissioner along with the registration application seeking coverage under this general permit. The commissioner shall not grant a variance from any requirement of this general permit which is inconsistent with section 22a-430-4(q) of the

Regulations of Connecticut State Agencies;

(viii) For any discharge to surface water, a signed NetDMR

Subscriber Agreement.

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(C) Hydrostatic Pressure Testing of Natural Gas and Petroleum Tanks and/or Pipelines Wastewater

(i) the type of product in the tank or pipeline;

(ii) the estimated ambient flow rate of the receiving stream.

(D) Fire Suppression System Testing Wastewater

(i) the flow and duration of the discharge;

(ii) how many times per year the testing will occur;

(iii) the discharge location (to ground, catch basin, receiving stream, etc.).

(d) 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. For a Public Water System, water storage tanks and pipelines that are part of the distribution network can be included in the registration for the associated water treatment facility.

(e) Contents of a Modified Registration

A modified registration:

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

(2) shall be submitted prior to any significant facility modifications, as described below:

A) any increase in noncontact cooling water or water treatment wastewater to a surface water from what is currently registered; or

B) any process change that results in the discharge of a new pollutant;

and

(3) shall be filed on forms described in Section 4(c) of this general permit.

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.

(4) No fee is required to be submitted with a modified registration.

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(f) Where to File a Registration or Modified Registration

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

Central Permit Processing Unit

Connecticut Department of Energy and Environmental Protection

79 Elm Street

Hartford, CT 06106-5127

(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 may reject without prejudice a registration or modified registration if it is determined that it does not satisfy the requirements of Section 4(c) or 4(d) of this general permit and more than thirty days (30) have elapsed since the commissioner requested that the registrant submit additional information. Any registration refiled after such a rejection shall be accompanied by the fee specified in Section

4(a) of this general permit.

(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 limits in Section 5(b) of this general permit; OR

(C) The imposition of conditions in this general permit cannot 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) 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.

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(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.

Section 5. Conditions of This General Permit

The permittee must meet the requirements for authorization set forth in Section 3 of this general permit and assure that the discharge authorized by this general permit is conducted in accordance with the following conditions:

(a) Operating Conditions

(1) General Operating Conditions Applying to Surface Water or

Groundwater Discharges

(A) Appearance

The discharge shall not contain or cause in the receiving waterbody:

(i) a visible oil sheen

(ii) floating solids

(iii) visible discoloration

(iv) foaming in the receiving water body.

(B) Temperature

(i) The temperature of the discharge shall not increase the temperature of the receiving water above 85oF for freshwaters and 83oF for marine waters, nor shall the discharge raise the temperature of the receiving stream more than 4oF at any time, except for marine waters during the months of July, August, and September, during which time the discharge shall not raise the temperature of the receiving waters by more than 1.5oF.

(ii) No discharge shall have a temperature greater than 100°F at the point of discharge to the surface water body.

(C) The wastewater shall not be discharged to any open floor drain, floor trench, sump or drainage system which is designed or constructed to receive or which may receive chemical spillage or wastewaters not authorized by this general permit.

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(2) Conditions for Non-contact Cooling and Geothermal Heat Pump

Water Discharges to Surface Water or Groundwater

(A) Any discharge to surface water shall have a minimum dilution available in the receiving stream at seven day, ten year low flow of at least ten to one.

(B) Wetlands, natural lakes and ponds cannot be used as a source nor a discharge point for residential geothermal heat pump water.

(C) All non-contact cooling water and geothermal heat pump water shall be totally enclosed within piping during its use except when recirculating cooling towers are utilized.

(D) A discharge of non-contact cooling water or geothermal heat pump water to groundwater shall be derived solely from once-through heat exchange systems or condensate which does not receive chemical additions of any kind and which uses on-site groundwater, public water supply or surface water as source water.

(E) A discharge of non-contact cooling and geothermal heat pump water from vapor degreasers, dry cleaning machines, or other equipment used to cool chlorinated solvent vapors, and a discharge of non-contact cooling and geothermal heat pump water which contains chemicals added to the source water after it enters the site, e.g., cooling tower blowdown, shall be discharged only to a POTW or to a surface water which does not have an existing or future classification of A, AA, or SA in the Connecticut Water Quality

Standards at the time the registration is submitted. Cooling tower blowdown which does not receive chemical additions of any kind may be discharged to surface waters with any classification in the

Connecticut Water Quality Standards requirements provided such discharge meets the requirements of Section 3 and Subsection 5(a) of this general permit.

(F) For any discharge to a surface water, chemical additives used on site in non-contact cooling and geothermal heat pump water shall not contain any of the substances listed in Appendix B, Tables II, III, and V, and Appendix D of section 22a-430-4 of the

Regulations of Connecticut State Agencies. Water treatment chemicals or additives containing chromium, copper, lead, zinc, or tributyl tin shall not be added to the discharge nor shall sacrificial metals be used within the cooling water or geothermal heat pump system.

(G) Groundwater contaminated as a result of industrial or commercial activity including but not limited to those substances listed in

DEEP-WPED-GP-028 Page 25 of 63 Rev. 12/14/2017

Appendix B, Tables II, III, and V, and Appendix D of section 22a-

430-4 of the Regulations of Connecticut State Agencies shall not be used as a source water unless a completed registration has been filed with the commissioner and the registrant has received, an approval in writing from the commissioner.

(H) Discharges of non-contact cooling and geothermal heat pump water shall not lower the salinity of the receiving water by more than five percent.

(I) The maximum daily discharge limit for non-contact cooling and geothermal heat pump water is 500,000 gallons per day.

(3) Conditions for Water Treatment Wastewater Discharges to Surface

Water or Groundwater

(A) For any lagoon used to treat or convey water treatment wastewater that is constructed after the effective date of this general permit, the minimum elevation of the top of the berm of the lagoon shall be constructed and maintained above the 100 year base flood elevation.

(B) The following types of water treatment wastewater shall not be discharged to a surface water:

(i) Facility and equipment cleaning rinsewaters containing detergents or surfactants;

(ii) Water treatment laboratory wastewaters;

(iii) Start-up wastewaters from water treatment wastewater facilities which contain detergents or surfactants.

(C) The following types of water treatment wastewater discharges shall not be authorized by this General Permit:

(i) Regeneration and backwash wastewaters to surface water from sodium chloride ion exchange units.

(ii) Activated carbon backwash and regeneration wastewaters for filters which treat for volatile organic compounds, except that initial start-up backwash conducted for the removal of loose carbon fines may be discharged to any surface water or groundwater provided such initial start-up backwash has been pretreated to remove solids.

(iii) Other water treatment wastewater containing chemical

DEEP-WPED-GP-028 Page 26 of 63 Rev. 12/14/2017 additives which contain any substances identified in

Appendix B, Tables II, and V, and Appendix D of Section

22a-430-4 of the Regulations of Connecticut State Agencies, except those water treatment wastewater discharges which do not exceed: (a) all effluent limits specified in Sections 5(b) of this general permit; or (b) if no such limit is specified in said

Sections 5(b), the most restrictive aquatic life or human health criteria listed in Appendix D of the Water Quality

Standards.

(D) The following types of water treatment wastewater shall be discharged to the surface water or groundwater only after treatment for solids removal designed to meet the 20.0 mg/l effluent limit specified in Section 5(b) for total suspended solids:

(i) Clarifier tank sludge blowdown;

(ii) Green sand filter ion exchange regeneration wastewaters;

(iii) Filter media backwash and regeneration wastewaters.

(E) Clarifier tank sludge blowdown shall not be discharged to subsurface disposal systems.

(F) For discharges to a subsurface disposal system, the maximum daily flow of all discharges of water treatment wastewater generated by a registrant on one site shall not exceed 50,000 gallons per day.

(G) The maximum daily discharge limit for water treatment wastewater to surface water is 2,000,000 gallons per day.

(H) Stormwater runoff shall not be discharged to any lagoons and beds which are used for the treatment of water treatment wastewater, but may be discharged to lagoons or beds used to treat stormwater run-off and which are also used to hold emergency overflows of water treatment wastewater.

(I) For all discharges of water treatment wastewater to groundwater which require submission of a registration, the following minimum separating distances shall be maintained between any point of a disposal system and any potable water supply well which is not downgradient and also not associated with this discharge:

(i) for potable water supply wells yielding less than 10 gallons per minute - 75 feet;

(ii) for potable water supply wells yielding 10 or more gallons per minute but less than 50 gallons per minute - 150 feet;

DEEP-WPED-GP-028 Page 27 of 63 Rev. 12/14/2017

(iii) for potable water supply wells yielding more than 50 gallons per…