DEEP: List of General Permits Fact Sheet

General Permits
An Environmental Permitting Fact Sheet

DEEP uses both individual and general permits to regulate activities. Individual permits are issued directly to an applicant, whereas general permits are permits issued to authorize similar minor activities by one or more applicants. Authorization of an activity under a general permit is governed by that general permit.

There are three basic types of general permits or ways of authorizing activities using a general permit.  Each general permit describes the necessary level of approval needed to initiate an activity, which can include one or more of the following:

  • a person conducting an activity described in a general permit may initiate the activity without prior registration (some of these permits may require later registration);
  • a registration is required prior to initiation of the activity (this registration frequently requires certification of a professional engineer); or
  • CT DEEP approval is required prior to initiation of the activity.  In some cases this approval will contain site specific conditions in addition to those already contained in the general permit.

Since the general permit process may be quicker and less costly, be sure to check the following list in order to determine whether any of your activities may be eligible for authorization under a general permit before applying for an individual permit. Consult each specific general permit for further information paying special attention to the definitions of applicability. For a copy of any general permit, and any applicable registration forms, follow the links in each general permit description below, or call the Permit Assistance Office at 860-424-3003.

List of Current General Permits

Air Emissions | Coastal Activities | Inland Water Resources Activities 

Materials and Waste Management |  Remediation | Wastewater Discharges 

Air Emissions
Limit Potential to Emit from Major Stationary Sources of Air Pollution  (DEEP-AIR-GP-001): This general permit is applicable to a premises with potential emissions of any regulated air pollutant(s) equal to or greater than the respective Title V source threshold(s) as defined in sections 22a-174-33(a)(10)(E) and (F) of the Regulations of Connecticut State Agencies and actual emissions of such pollutant(s) less than 80% of such threshold(s), excluding greenhouse gases which must be less than 100% of its threshold. The general permit enables the owner or operator of the premises to cap their potential and actual emissions at levels lower than the Title V thresholds, thereby eliminating the need for obtaining a Title V permit. Eligible activities include, but are not limited to: paint spray booths; metal degreasers; metal plating and surface treatment operations; printing operations; boilers, generators, and other fuel burning equipment; incinerators; stationary internal combustion engines such as diesels and turbines; chemical reactors and mixers; volatile liquid storage; rock crushing operations; and may include other manufacturing or processing operations. Registration is required to be submitted and approved in writing by the Department in order for the premises to be authorized to operate under this general permit. An Approval of Registration is transferrable.
  
Coastal Activities
Minor Coastal Structures (DEEP-OLISP-GP-2015-01): This general permit applies to the construction, installation, maintenance, removal and seasonal replacement of various minor structures within the tidal, coastal, and navigable waters of the state below the elevation of the coastal jurisdiction line and, where specifically allowed, in tidal wetlands.  These minor structures include: 4/40 docks, access stairs, non-harbor moorings, osprey platforms and perch poles, buoys and navigational markers, harbor moorings, swim floats, pump-out facilities and experimental activities and scientific monitoring devices. Registrations are required to be submitted and approved in writing by the Department in order for the 4/40 docks, access stairs and non-harbor moorings to be authorized by this general permit.  Project Reports are required to be submitted to the Commissioner in order for the osprey platforms and perch poles and certain pump-out facilities to be authorized by this general permit.  Approval of Registrations are transferrable.
Coastal Maintenance (DEEP-OLISP-GP-2015-02): This general permit applies to the maintenance of various coastal structures and activities within the tidal, coastal, and navigable waters of the state below the elevation of the coastal jurisdiction line and, where specifically allowed, in tidal wetlands. These maintenance activities include: marina and mooring boundary reconfiguration, remedial activities required by order, FEMA residential flood hazard mitigation, reconstruction of permitted structures, DOT maintenance activities, beach grading, removal of derelict structures, cultch placement, minor seawall repair, catch basin cleaning, flap gate repair, habitat restoration activities, temporary construction access and DEEP boat launch repairs. Registrations are required to be submitted and approved in writing by the Department in order for marina and mooring boundary reconfigurations, remedial activities required by order, FEMA residential flood hazard mitigation and reconstruction of permitted structures to be authorized by this general permit.  Annual Project Reports are required to be submitted to the Commissioner in order for the DOT maintenance activities and DEEP boat launch repairs to be authorized by this general permit.  Approval of Registrations are transferrable.
Coastal Storm Response (DEEP-OLISP-GP-2015-03): This general permit applies to storm preparation and response activities within the tidal, coastal, and navigable waters of the state below the elevation of the coastal jurisdiction line and, where specifically allowed, in tidal wetlands.  Storm preparation activities include: temporary placement of bracing, scaffolding, hay bales, silt fencing, sheeting; temporary placement of sandbags; and relocation and stockpiling of beach sand for temporary dunes within areas above mean high water.  Storm response activities can only be undertaken upon declaration by the commissioner that this section of the general permit is in effect. Such declaration will be made by the commissioner after a coastal storm or other event and shall include the effective date, the expiration date, and the specific geographic areas covered.  Storm response activities include various repairs, replacement and/or reconstruction to coastal structures caused specifically by the storm or event.  Storm response repairs and reconstruction of seawalls, bulkheads, culverts and other flood and erosion control structures will require submittal of a Project Report to Commissioner within fourteen (14) days of completion in order to be covered by this general permit.
  
Inland Water Resource Activities
Dam Safety Maintenance, Repair, and Alteration (DEEP-IWRD-GP-014) Non-Filing Categories.  This permit authorizes limited amounts of minor maintenance and repair activities on all dams including  removing debris and sediment, replacing weir boards, installing security and safety fencing, replacing sealant in construction joints, establishing grass cover on existing riprapped embankments, maintenance of existing toe drain systems, seepage measurement devices, replacing less than 10 square yards of riprap, exercising and maintenance of gates and valves, cutting and removing woody vegetation (no removal of 3” or larger root systems), restoration of grass cover, filling up to 10 animal burrows, quantity limited concrete and masonry repairs allowed each year. No DEEP filing or registration is required, however, a notice to the municipality using the DEEP notice form is required. No fee is required. Detailed Fact Sheet (PDF)
Dam Safety Repair and Alteration (DEEP-IWRD-GP-015) Filing-Only Categories. This permit authorizes two levels of limited minor repairs and alterations to dams and removal of remnants of dams. Work authorized under Section 3(a)1 of this permit to the limits specified may be done on dams less than 15 feet high and storing less than 50 acre-feet of water without professional engineering oversight including replacing up to 25 square yards of riprap, restoring eroded areas, filling up to 15 animal burrows, quantity limited concrete and masonry repairs. Section 3(a)2 of this permit authorizes increased amounts of work on any size dam with professional engineering oversight including Installing up to 200’ of toe drains, minor repairs to trash racks, gates, valves (no excavation), placing up to 75 square yards of riprap, removing tree root systems (low tree density), filling up to 20 animal burrows; minor concrete and masonry repair, sliplining up to a 36” diameter outlet pipe, grouting voids, installing bridges over spillways not requiring a center support, digging test pits, drilling soil borings, and installing piezometers. Section 3(a)3 of this permit authorizes removal of remnants of dams no longer impounding water or collecting sediment.  A filing using the DEEP GP-015-3(a)1 NO PE  form or GP-015-3(a)2 and 3(a)3 PE form, a notice to the municipality using the DEEP notice form, and a filing fee of up to $200 is required. Detailed Fact Sheet (PDF)
Dam Safety Repair and Alteration (DEEP-IWRD-GP-016) Approval of Filing Required Categories authorizes limited amounts of minor repairs and alterations to dams and some minor dam removal activities including installing up to 400’ of toe drains, repair or replacement of trash racks, gates, and valves, placing up to 150 square yards of riprap, removing tree root systems (moderate tree density), filling up to 25 animal burrows, repairs to or construction of concrete portions of dams (limited concrete volume by formula), repointing or repairing masonry (square foot limit), sliplining outlet pipes (no size limit), grouting voids, installing bridges over spillways which may require center support, digging test pits, drilling soil borings, installing piezometers. Dam removal activities authorized include removal of low or moderate hazard class dams meeting certain criteria, and projects to provide fish passage. A filing using the DEEP GP-016-3(a) Approval filing form, a notice to the municipality using the DEEP notice form, a reply approval, and a filing fee of up to $250 is required. Detailed Fact Sheet (PDF)
Diversion of Remediation Groundwater (DEP-IWRD-GP-009): This general permit regulates any diversion of remediation groundwater greater than 50,000 gallons during any twenty-four hour period that is diverted or withdrawn to prevent, intercept, or treat a known or suspected contamination or pollution plume, or well point de-watering as part of soil remediation activities, provided that any site with a discharge from the diversion of remediation groundwater has a valid permit in effect pursuant to Section 22a-430 or 22a-430b of the Connecticut General Statutes (CGS), or a temporary or emergency authorization issued pursuant to CGS Section 22a-6k. No registration is required to be submitted in order for the diversion to be authorized by this general permit. Upon a change in ownership or the permittee, the new owner or permittee shall comply with all applicable conditions and requirements of this general permit.  Detailed Fact Sheet (PDF)
Diversion of Water for Consumptive Use: Reauthorization Categories (DEP-IWRD-GP-001R): This general permit is intended for use by those needing to continue their existing coverage obtained under the General Permit for Diversion of Water for Consumptive Use (DEP-IWRD-GP-001), expiring June 26, 2007.  Eligible diversions include 1) Water Supply Interconnections, 2) Unregistered Water Supply Systems, 3) Diversion of up to 250,000 gpd New Water, 4) Backup Wells, 5) Small Water Supply System, and 6) Restoration of Lost Capacity. A request for authorization is required to be submitted in order for the diversion to be authorized by this general permit, provided the subject activity complies with all provisions, requirements, and conditions of the general permit. Authorizations are transferrable.  Detailed Fact Sheet (PDF)
Diversion of Water for Consumptive Use: Non-filing Categories (DEP-IWRD-GP-010): This general permit applies to those diverting the waters of the state in excess of 50,000 gallons per day.  Eligible diversions include 1) Pump and Recharge Geoexchange System, 2) Non-Contact Cooling – Surface Waters, and 3) Long Island Sound.  To be eligible for coverage under this general permit the diverter must obtain all other state permits, licenses or authorizations as may be required for the withdrawal, discharge, and all associated infrastructure.  Such permits may include, but not be limited to, those required within sections 22a-416 through 22a-438 (Wastewater Discharge), and 22a-359 through 22a-363f (Structures, Dredging and Fill) of the Connecticut General Statues.  This general permit cannot be used for withdrawals from Long Island Sound made in conjunction with an energy production facility.  A diversion is authorized under this general permit provided the subject activity complies with all provisions, requirements, and conditions of the general permit.  No filing or application with, or notification or reporting to, the DEP is required.  However, certain operating conditions do require that specific actions be taken by the diverter to be in compliance with this general permit.  Upon a change in ownership or the permittee, the new owner or permittee shall comply with all applicable conditions and requirements of this general permit.  Detailed Fact Sheet (PDF)
Diversion of Water for Consumptive Use: Filing Only Categories (DEP-IWRD-GP-011): This general permit applies to those diverting the waters of the state in excess of 50,000 gallons per day.  Eligible diversions include 1) the construction of a backup water supply well, 2) withdrawal from certain large tidal rivers, 3) a small supplemental community or agricultural water supply well withdrawing from a bedrock aquifer, and 4) a small community or agricultural water supply system withdrawing at just above the exempted volume of 50,000 gallons per day. A request for authorization is required to be submitted in order for the diversion to be authorized by this general permit, provided the subject activity complies with all provisions, requirements, and conditions of the general permit.  Authorizations are transferrable.  Detailed Fact Sheet (PDF)
Diversion of Water for Consumptive Use: Authorization Required Categories (DEP-IWRD-GP-012): This general permit applies to those diverting the waters of the state in excess of 50,000 gallons per day. Eligible diversions include 1) Withdrawal of up to 250,000 gpd – Surface Water / Stratified Drift, 2) Withdrawal of up to 250,000 gpd – Bedrock Aquifer, and 3) Interconnection and Transfer of Up to 1,000,000 gpd.  A request for authorization is required to be submitted and approved in writing by the Department in order for the diversion to be authorized by this general permit.  Approval of Authorizations are transferrable.  Detailed Fact Sheet (PDF)
Water Resource Construction Activities (DEEP-IWRD-GP-013) This general permit authorizes the following activities that require permitting through the DEEP under the Inland Wetlands and Watercourses Act, and Connecticut Water Diversion Policy Act, subject to certain conditions, if they are within the jurisdiction of the Commissioner: trail construction, public works projects, infrastructure repairs, and conservation activities. Statewide activities such as: beach maintenance, boat launch maintenance, drainage maintenance are also covered under this general permit.  Furthermore, this general permit authorizes, subject to certain conditions, activities for which an authorization has been granted under Category 1 or Category 2 of the Department of Army (US Army Corps of Engineers) General Permit State of Connecticut.

The following categories require written authorization from the Commissioner: Trail Construction, Infrastructure Repairs, Public Works Projects, and Maintenance Plans. The following categories are filing only: Activities Authorized Under Category 1 or Category 2 of the Department of Army (US Army Corps of Engineers) General Permit State of Connecticut and Conservation Activities. Detailed Fact Sheet (PDF)

  
Materials and Waste Management
Addition of Grass Clippings at Registered Leaf Composting Facilities (DEP-RCY-GP-006): This general permit applies to the addition of grass clippings at a leaf composting facility registered under RCSA Section 22a-208i(a)-1. The owner or operator shall operate such activity in accordance with the operating conditions contained in the general permit including, but not limited to, restrictions on the physical location, and the handling and management of the grass clippings. Record keeping, monitoring, and reporting requirements also apply. A registration is required to be submitted and approved in writing by the Department in order for the addition of grass clippings at a leaf composting facility to be authorized under this general permit.  Approval of Registrations are transferrable. 

Collection and Storage of Post-Consumer Paint  (DEEP-RCY-GP-015): This general permit authorizes the collection and storage of post-consumer paint at retail locations in accordance with the requirements of the Paint Stewardship Program, including the approved Paint Stewardship Program Plan (PSPP). A complete registration must be submitted by the representative organization and approved in writing by the Department in order for the retail location to be authorized under the terms and conditions of this general permit.  Approval of Registrations are non-transferrableDetailed Fact Sheet 

Construct and Operate a Commercial Facility for the Management of Recyclable Materials and Certain Solid Wastes (DEEP-MM-GP-001): This General Permit authorizes the aggregation of greater than ten (10) cubic yards of recyclables and certain solid wastes. Registrants and notifiers must specify the aggregation locations for those wastes.  The wastes addressed in the general permit are those generated at locations different from the aggregation locations identified by the registrants and notifiers. The general permit also allows for limited processing of certain wastes at the aggregation locations.  The recyclables and certain solid wastes authorized in the general permit are: Recyclables; Asbestos Containing Material; Ash Residue; Clean Wood; including leaves and grass clippings; Construction and Demolition waste; Non-RCRA hazardous waste and compatible solid wastes; and Universal waste and compatible solid wastes.  When required, a complete registration must be submitted and either acknowledged or approved in writing by the Department. Registrations are transferrable.  Detailed Fact Sheet
Contaminated Soil and/or Sediment Management (Staging and Transfer) (DEP-SW-GP-001):This general permit authorizes the staging, transfer, and temporary storage of contaminated soil and/or sediment and is intended to address the management of these materials when they are generated during projects that are less than 2 years in duration and involve the excavation of earthen material. It establishes a uniform set of environmentally protective management procedures for stockpiling soils when they are generated during projects where contaminated soils are typically managed (held temporarily during characterization procedures to determine a final disposition) including, but not limited to remediation, construction, and utility installation projects. Approval of Registrations/Registrations are transferrable. Detailed Fact Sheet (PDF)
Disassembling of Used Electronics (DEP-RCY-GP-010): This general permit applies to the disassembling of used electronics by large quantity handlers of universal waste. A complete registration must be submitted and approved in writing by the Department in order for the disassembling of used electronics to be authorized under the terms and conditions of this general permit. Approval of Registrations are non-transferrableDetailed Fact Sheet (PDF)
Municipal Transfer Stations (DEEP-SW-GP-002): This general permit authorizes municipalities only to construct and operate a municipal transfer station and recycling center. A complete registration must be submitted and approved in writing by the Department in order for the transfer station to be authorized under the terms and conditions of this general permit.  Approval of Registrations are non-transferrableDetailed Fact Sheet 

One Day Collection of Certain Wastes and Household Hazardous Waste (DEEP-RCY-GP-007): This general permit applies to the collection and aggregation of greater than ten (10) cubic yards of household hazardous waste; greater than ten (10) cubic yards of covered electronic devices and/or used electronics; hazardous waste and universal wastes generated by a Conditionally Exempt Small Quantity Generator; and sharps and pharmaceuticals generated from households. This general permit does not authorize the treatment, storage, disposal or transportation of any such wastes. A complete registration must be submitted and approved in writing by the Department in order for the collection and aggregation of such wastes to be authorized under the terms and conditions of this general permit. Annual reporting requirements are also required under the terms of the general permit. No permittee may hold more than two collection events in a municipality in a month without first obtaining advanced written approval from the Commissioner.  Approval of Registrations are non-transferrable

Storage and Processing of Asphalt Roofing Shingle Waste (ARSW) for Beneficial  Use and Recycling (DEP-RCY-GP-011): This general permit authorizes: The storage and processing of ARSW for beneficial use and recycling. A complete registration must be submitted and approved in writing by the Department in order for such activity to be authorized under the terms and conditions of this general permit. Approval of Registrations are non-transferrableDetailed Fact Sheet
Storage and Processing of Scrap Tires for Recycling and Beneficial Use (DEP-RCY-GP-013): This general permit authorizes the storage and processing of scrap tires for recycling and beneficial use. A complete registration must be submitted and approved in writing by the Department in order for such activity to be authorized under the terms and conditions of this general permit.  Approval of Registrations are non-transferrableDetailed Fact Sheet 
Remediation
In Situ Groundwater Remediation: Enhanced Aerobic Biodegradation (DEP-REM-GP-001): This general permit authorizes oxygenation of groundwater at a controlled rate to enhance in situ aerobic degradation of organic pollutants and allows use of several different sources of oxygen and delivery methods. Supplemental nutrients or cultured bacteria may also be added under the general permit framework. Chemical oxidation of pollution is not authorized under this general permit; and the permit incorporates limits on ozone and hydrogen peroxide to ensure their use solely as an oxygen source for biodegradation. Registration must be submitted to the department and approved for activity to be authorized pursuant to this general permit. The general permit allows for DEEP issuance of a certificate of coverage in lieu of an approval for authorization of certain activities and also provides a limited authority for self implementation with submittal of registration. Fees reflect the tiered DEEP review process. The permit requires monitoring of groundwater, especially potentially affected supply wells, reporting of any indications of unexpected outcomes, and mitigation of adverse conditions caused by the discharge.  Approval of Registrations/Registrations are transferrable. Detailed Fact Sheet 
In Situ Remediation: Chemical Oxidation (DEEP-REM-GP-002): This general permit authorizes introduction of chemical oxidants and necessary associated substances to soil and groundwater to remediate pollution through the chemical destruction of fuels and other organic materials, and in some cases chemical modification of inorganic chemicals. The oxidizing chemical classes authorized are: Peroxides, Permanganates, Ozone, Persulfates, and Percarbonates. Registration must be submitted to the department and approved for an activity to be authorized pursuant to this general permit. The general permit allows for DEEP issuance of a certificate of coverage in lieu of an approval for authorization of certain activities. The registration fee is $500. The permit requires monitoring of groundwater, especially potentially affected supply wells, reporting of any indications of unexpected outcomes, and mitigation of adverse conditions caused by the discharge.  Approval of Registrations/Registrations are transferrable. Detailed Fact Sheet
Wastewater Discharges

Categorical Industrial User Wastewater to a Publicly Owned Treatment Works (POTW) (DEEP-WPED-GP-008): This general permit applies to wastewaters discharging from facilities subject to 40CFR Part 403.6 National Pretreatment Standards: Categorical Standards. The first categorical wastewater covered by this general permit is Metal Finishing Wastewater which is wastewater subject to the provisions of 40 CFR 413 (Electroplating Point Source Category) or 40 CFR 433 (Metal Finishing Point Source Category). A registration is required to be submitted to the department that includes a site plan, discharge information, any water conservation practices employed, information on wastewater treatment processes used, line and process flow diagrams, checklists for operation and maintenance plans, spill control plans, and solvent management plans, and a Discharge Monitoring Report subscriber agreement for the electronic reporting of compliance information. Each registration must be reviewed and certified by a "Qualified Professional Engineer" as defined in the general permit. Discharge flows less than 10,000 gallons per day (gpd) pay a registration fee of $3,125 while flows equal to or greater than 10,000 gpd pay a registration fee of $6,250. Effluent limits are established by a table in the permit. Some limits can be more stringent if the POTW receiving the discharge has a history of difficulty in meeting certain water quality based limits. Discharge monitoring frequency ranges from once per month to weekly depending on the discharge flow. Registrations must be approved before the discharge is authorized and approvals of registration are transferable. The Department response time following submittal of a complete registration will be typically less than 90 days. Detailed Fact Sheet

Domestic Sewage (DEP-WPED-GP-018): This general permit applies to discharges of domestic sewage from a community sewerage system to a POTW. Registration is required for discharges from a community sewerage system. Privately owned "community sewerage systems" (such as those at condominiums) are to be properly managed and have a valid community sewerage system agreement with the municipality receiving the discharge as required by section 7-246f of the General Statues. Municipalities seeking to initiate, create or originate a discharge from a community sewerage system do not need to register. For all other discharges of domestic sewage to a POTW no registration is required to be submitted in order for the discharges to be authorized by this general permit. Registrations are non-transferrable.
Food Service Establishment Wastewater (DEEP-WATERP&S-GP-001): This general permit authorizes any wastewater discharge associated with a facility, as defined in the general permit, which discharges to a municipal sewer system, to limit the amount of FOG of all Class III and IV food service establishment discharges by installing either an outside grease trap/interceptor, an Active Grease Recovery Unit (AGRU), or Super-capacity Grease Interceptor (SCGI) in accordance with technical requirements specified in the general permit. The authorized agent approves the FOG management equipment to be installed.  No registration is required in order for the discharges to be authorized by this general permit.  Upon a change in ownership or the permittee, the new owner or permittee shall comply with all applicable conditions and requirements of this general permit. Detailed Fact Sheet
Food Processing Wastewater (DEP-WD-GP-006): This general permit applies to wastewaters generated by the manufacture and storage of food and beverage for human and animal consumption, including but not limited to: laboratories associated with or the cleaning and maintenance of areas associated with storage, processing, packaging, and disposal of raw materials, products, and by-products; and composting operations. Total discharges of food processing wastewater cannot exceed 50,000 gallons per day and must be either discharged directly to a POTW or hauled there. For those activities having food processing wastewater discharges with a maximum daily flow greater than 1,000 gallons per day, a registration is required to be submitted to the department. For discharges which contain any of the substances listed in Attachment B (Toxic and Hazardous Pollutants and Their Maximum Concentrations) of the general permit in concentrations exceeding the concentrations listed therein, registration is required to be submitted and approved in writing by the Department. No registration is required for those activities having maximum daily discharges equal to or less than 1,000 gallons per day and which do not contain any of the substances listed in Attachment B in concentrations exceeding the maximum concentrations listed therein.  Registrations are non-transferrable.

Groundwater Remediation Wastewater Directly to Surface Water (DEP-PERD-GP-020): This general permit applies to discharges of groundwater remediation wastewater generated during the process of investigating and remediating groundwater and soil, and other related wastewaters, directly to a surface water, either through a dedicated conveyance, or through any other conveyance system that the permittee is authorized to utilize. The combined maximum daily flow of all groundwater remediation wastewater generated at the site from which such discharge takes place or is proposed to take place does not exceed ten per cent of the 7Q10 flow of the watercourse into which such wastewater is discharged or, if all such wastewater is directed to a manmade impoundment or a natural lake or pond, the combined maximum daily flow of such wastewater does not exceed one-half of one per cent of the water volume of such impoundment, lake, or pond. Discharge to waterbodies classified as public water supply (AA) is not authorized by this general permit. Registration is required to be submitted to the department in order for the discharges to be authorized by this general permit. If a registrant is proposing to use a substance to treat the discharge, or groundwater remediation wastewater to be discharged contains any pollutant, excluding temperature, solids and oxygenates, for which no limit is specified in Attachment A of the general permit, or radioactive material as defined by Section 22a-148 of the Connecticut General Statutes has been deposited on the site from which such discharge takes place or is proposed to take place, registration is required to be submitted and approved in writing by the department in order for the discharges to be authorized by this general permit. Approval of Registrations are transferrable.

Groundwater Remediation Wastewater to a Sanitary Sewer (DEP-WD-GP-007): This general permit applies to discharges of groundwater remediation wastewater generated during the process of investigating and remediating groundwater and soil. The maximum daily flow of all discharges may not exceed 5% of the POTW's design capacity and must be either discharged directly to the POTW or hauled there. Registration is required to be submitted to the department in order for the discharges to be authorized by this general permit. Registrations are non-transferrable. Detailed Fact Sheet
Hydrostatic Pressure Testing Wastewater (DEP-PERD-GP-011): This general permit applies to all discharges of waters used to test the structural integrity of new tanks and pipelines and tanks and pipelines which have been used to hold or transfer drinking water, sewage, or natural gas. Registration is required to be submitted to the department in order for the discharges to be authorized by this general permit. If the discharges are from hydrostatic pressure testing of natural gas pipelines, registration is required to be submitted and approved in writing by the Department in order for the discharges to be authorized by this general permit.  Approval of Registrations/Registrations are non-transferrable.
Low Flow Water Treatment Wastewater  (DEEP-WPED-GP-016):  This general permit applies to backwash discharges from residential or small commercial water treatment devices for well water located at the "point of entry" of the building and has a maximum daily discharge of 500 gallons per day. The discharge can be directed to either the sanitary sewer or the ground by way of a "water treatment wastewater disposal system". Compliance with the conditions of the permit is the main requirement for authorization. There is no registration or fee required to be authorized by this general permit.

Miscellaneous Discharges of Sewer Compatible (MISC) Wastewater (DEEP-WPED-GP-012): The Miscellaneous General Permit was revised in 2013 to combine discharges from many of DEEP’s separate wastewater general permits that discharge to the sanitary sewer. Some individual permit holders may now be able to transfer their wastewater discharge coverage to the Miscellaneous General Permit. This general permit now categorizes discharges into three discharge groups. Group I discharges include air compressor condensate or blowdown, boiler blowdown, contact cooling and heating wastewater, cutting and grinding wastewater, non-destruct testing rinsewater, printing and photo processing wastewater, tumbling or cleaning of parts wastewater, water treatment wastewater, and other (formerly undesignated) Miscellaneous wastewater. Group II discharges include non-contact cooling water, hydrostatic pressure testing wastewater, commercial laundry wastewater, and food processing wastewater. Group III discharges include building maintenance wastewater, fire suppression testing wastewater, and swimming pool wastewater. The general permit authorizes discharges to a Publicly Owned Treatment Works (POTW or sewage treatment plant) either directly via a sanitary sewer, or to a holding tank that meets the requirements of the general permit. The wastewater in the holding tank must then be transported to a POTW by a properly licensed transporter. There is no limit under the general permit to the maximum daily flow of the wastewater as long as the POTW receiving the discharge has approved the flow. Registration under the Miscellaneous General Permit is required for: 1) Group I discharges that have a cumulative maximum daily flow greater than 1000 gallons per day or 2) Group II discharges that have a cumulative maximum daily flow greater than 5000 gallons per day. For discharges less than the above-stated flows or any Group III discharges, registration is not required, although such discharges are required to comply with this general permit. In addition, depending on the flow and/or whether treatment of the wastewater is required to meet the effluent limits of the Miscellaneous General Permit, registration followed by a written approval from the Department may be required for the discharges to be authorized by this general permit. See the actual general permit for complete requirements.

Nitrogen Discharges (DEEP-WP&S-GP-002): This general permit regulates the discharge of total nitrogen from 79 Publicly Owned Treatment Works (POTW) in Connecticut. These facilities, in aggregate, must reduce the annual loading of total nitrogen to Long Island Sound by approximately 64% by 2014 in order to achieve the final, established wasteload allocation. Upon a change in ownership or the permittee, the new owner or permittee shall comply with all applicable conditions and requirements of this general permit.
Non-Contact Cooling and Heat Pump Water (DEP-PERD-GP-009): This general permit applies to discharges of minor non-contact cooling and heat pump water to a surface water, groundwater, or a POTW. For discharges to a surface water, the maximum daily flow must not exceed 500,000 gallons per day (gpd) and must have a minimum dilution available in the receiving stream at seven day, ten-year low flow of at least ten to one. For discharges to a POTW, the maximum daily flow must not exceed 50,000 gpd or 1% of the POTW's design capacity, whichever is less. Discharges to groundwater must be derived solely from once-through heat exchange systems which do not receive chemical additions of any kind and which use on-site groundwater, public water supply or surface water as source water. Registration is required to be submitted in order for the discharges to be authorized by this general permit, except that, for discharges of less than 5000 gpd to either a POTW or to groundwater, no registration is required to be submitted in order for the discharges to be authorized by this general permit.  Registrations are non-transferrable.
Point Source Discharges to Waters of the State from the Application of Pesticides (DEEP-WPED-GP-026):  This general permit (PGP) regulates the discharges associated with the direct use of pesticides in waterbodies, as well as indirect discharges that occur as the result of aerial spraying of pesticides or other pesticide applications that occur in close proximity to waterbodies. Many applications that are subject to this general permit are authorized through issuance of a permit issued by DEEP's Pesticide Division. Some of the larger applications that receive a Pesticide Permit must also register under the PGP. The thresholds for PGP registration are detailed in the general permit. In addition, applications previously not subject to DEEP regulation, such as those conducted by water utilities, are subject to this general permit and are subject to the conditions in this general permit and may need to register, depending on the size of the waterbody treated. Lastly, it should be noted that this general permit is necessary to comply with federal law, and as such, long standing exemptions under state law do not exempt water utilities from the requirements in this general permit.
Printing and Publishing Wastewater (DEP-WD-GP-003): This general permit applies to all discharges of wastewater generated by letterpress, flexography, screen, and/or lithography printing, including but not limited to, photo processing, nonmetallic plate making, and printing operations with water-based and non-water based inks. The wastewaters must be discharged to a POTW with the maximum daily flow not to exceed 1,000 gallons per day excluding the volume of wastewater discharge from photo processing wastewater. This general permit does not include wastewater generated by gravure cylinder preparation, metallic plate making, gravure printing, or wastewater which contains chromate bleach or dichromate-based etch solutions or solutions containing cyanide. Registration is required to be submitted in order for the discharges to be authorized by this general permit. Registrations are non-transferrableSummary of General Permit

Stormwater and Dewatering Wastewaters from Construction Activities (DEEP-WPED-GP-015): This general permit applies to all discharges of stormwater and dewatering wastewater from construction activities which result from the disturbance of one or more total acres of land area on a site regardless of project phasing. In the case of a larger plan of development (such as a subdivision), the estimate of total acres of site disturbance shall include, but is not limited to, road and utility construction, individual lot construction (i.e., house, driveway, septic system, etc.), and all other construction associated with the overall plan, regardless of the individual parties responsible for construction of these various elements.

The general permit dictates separate compliance procedures for Locally Approvable projects and Locally Exempt projects (as defined in the permit).  Locally Exempt construction projects disturbing over 1 acre must submit a registration form and Stormwater Pollution Control Plan (SWPCP) to the Department.  Locally Approvable construction projects with a total disturbed area of one to five acres are not required to register with the Department provided the development plan has been approved by a municipal land use agency and adheres to local erosion and sediment control land use regulations and the CT Guidelines for Soil Erosion and Sediment Control.  Locally Approvable construction projects with a total disturbed area of five or more acres must submit a registration form to the Department.  This registration shall include a certification by a Qualified Professional who designed the project and a certification by a Qualified Professional or regional Conservation District who reviewed the SWPCP and deemed it consistent with the requirements of the general permit.  The SWPCP for locally approvable projects is not required to be submitted to the Department unless requested.

This general permit is now transferable in accordance with section 22a-6o of the General Statutes provided a license transfer form is submitted to the commissioner. 

Stormwater Associated with Commercial Activities (DEEP-WPED-GP-004): This general permit applies to all discharges from any conveyance which is used for collecting and conveying stormwater and which is directly related to retail, commercial, and/or office services whose facilities occupy five acres or more of contiguous impervious surface. Registration is required to be submitted in order for the discharges to be authorized by this general permit.  Registrations are non-transferrable.
Stormwater Associated with Industrial Activities (DEP-PERD-GP-014): This general permit applies to all discharges from any conveyance which is used for collecting and conveying stormwater and which is directly related to manufacturing, processing or material storage areas at an industrial activity. Registration is required to be submitted in order for the discharges to be authorized by this general permit. Registrations are non-transferrable.
Stormwater from Small Municipal Separate Storm Sewer Systems (DEP-PED-GP-021): This general permit applies to all municipalities that have Urbanized Areas as determined by the U.S. Census Bureau. Specifically, it applies to a town's separate storm sewer system and how the town manages their system and what measures they take to reduce or eliminate the discharge of pollutants to that system. Registration is required to be submitted in order for the discharges to be authorized by this general permit. Registrations are non-transferrableDetailed Fact Sheet
Swimming Pool Wastewater (DEP-WD-GP-005): This general permit applies to discharges comprised solely of swimming pool wastewater. Registration is required to be submitted for any discharge from a public pool in order for the discharge to be authorized by this general permit. Any person in the business of cleaning, draining, or maintaining multiple public or private residential pools must submit a completed contractor registration form. Registration is not required for a discharge from a private, residential pool but all other applicable conditions of this general permit must be met. Registrations are non-transferrable.
Vehicle Maintenance Wastewater (DEP-PERD-GP-010): This general permit applies to wastewater generated by 1) floor washdown and incidental drippage from vehicles as a result of routine servicing operations and 2) washing of vehicle exteriors or steam cleaning of engines. Wastewater must discharge either through a sanitary sewer to a POTW, or to a holding tank that meets the requirements of the general permit, from which holding tank the wastewater is transported to a POTW. Maximum daily flow of all discharges of vehicle maintenance wastewater generated at a single site must not exceed 15,000 gallons per day. Registration is required to be submitted and may need to be approved in writing by the Department in order for the discharges to be authorized by this general permit. Approval of Registrations/Registrations are non-transferrable.
Water Treatment Wastewaters (DEP-PERD-GP-002): This general permit applies to all discharges of wastewater generated by the treatment of water supplies for potable or industrial process use (and does not include wastewaters generated by any residential or commercial point of entry treatment device.) Registration is required to be submitted in order for the discharges to be authorized by this general permit except that, for certain discharges listed in the general permit, a registration need not be submitted. Registrations are non-transferrable.
 
Contact Information
PERMIT ASSISTANCE OFFICE
DEPARTMENT OF ENERGY AND ENVIRONMENTAL PROTECTION
79 ELM STREET
HARTFORD, CT 06106-5127

This overview is designed to answer general questions and provide basic information. You should refer to the appropriate statutes and regulations for the specific regulatory language of the different permit programs. This document should not be relied upon to determine whether or not an environmental permit is required. It is your responsibility to obtain and comply with all required permits.

Fact Sheet DEEP-FS-004
Content Last Updated January 2016

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