SPDES Permit Requirements, Application, Fees, and Renewal

A SPDES permit is the authorization you need from the New York State Department of Environmental Conservation before any pipe, ditch, outfall, or other point source at your facility discharges pollutants into the state’s surface waters or groundwater. The program runs under Environmental Conservation Law Article 17, and ECL 17-0803 makes it unlawful to discharge without one or to discharge in a way the permit does not allow.¹ Operating without coverage, or outside the terms of your permit, exposes you to civil penalties of up to $37,500 per day for each violation.²

Who Needs a SPDES Permit

If a facility sends pollutants from a point source into New York waters, it needs SPDES coverage. ECL 17-0105 defines a point source broadly: any pipe, ditch, channel, tunnel, conduit, well, container, concentrated animal feeding operation, vessel, or landfill leachate collection system from which pollutants are or may be discharged. Agricultural stormwater and irrigation return flows are expressly excluded.³

In practice, the facilities most often pulled into the program fall into a handful of categories:

Publicly owned treatment works of any size discharging treated effluent.
Industrial facilities discharging process water, cooling water, or other industrial wastewater.
Construction sites disturbing one acre or more of soil, or smaller sites that are part of a larger development plan totaling one acre or more.⁴
Concentrated animal feeding operations that confine animals above set size thresholds for 45 or more days in a 12-month period on non-vegetated ground. New York has roughly 500 CAFOs, most of them dairy operations with 300 or more cows.⁵
Industrial facilities in sectors where outdoor activities expose materials to stormwater, which need coverage under the Multi-Sector General Permit.⁶

One narrow exemption: a facility treating less than 1,000 gallons per day of sewage wastewater to groundwater, with no industrial or non-sewage waste mixed in, does not need a SPDES permit.⁷ Everything else that meets the point-source definition needs authorization before any discharge begins.

General Permit or Individual Permit

SPDES authorization comes in two forms, and the choice drives everything that follows.

A general permit covers a broad category of similar discharges. Construction stormwater, CAFOs, industrial stormwater under the MSGP, and small private or commercial groundwater discharges each have their own. If your operation fits one of these categories cleanly and does not present unusual environmental risks, this path is faster and less expensive. You file a Notice of Intent rather than a full application, and DEC processes it without a site-specific public comment period.

An individual permit is required when a facility’s discharge characteristics do not fit under any general permit, and all projects DEC classifies as “major” need one.⁷ Individual permits involve a full technical review, a draft permit with site-specific effluent limits, and a public notice and comment period. The tradeoff is that the final limits are tailored to your facility rather than set at the conservative level a general permit uses to cover an entire category.

How to Apply

Publicly owned treatment works use Form NY-2A, which collects sewage treatment capacity, effluent monitoring data, and user charge information.⁸ Industrial dischargers use Form NY-2C, which covers process wastewater, chemical usage, and manufacturing discharge characteristics.⁹ Both forms, along with the general permit Notice of Intent forms, are on DEC’s website.¹⁰

Whatever form applies, the package needs to show DEC exactly what will be discharged, from where, and after what treatment. That means site plans with every outfall location, surrounding topography, and the receiving waters identified; discharge characterization data covering volume, chemical makeup, temperature, and flow rate; a detailed description of the treatment processes used to reduce pollutant concentrations; and a statement of whether the discharge is continuous or intermittent, with the expected frequency.

Every field needs verifiable data. Incomplete submissions are the most common reason for delays, and DEC will not start the formal review clock until the application is deemed complete. If a figure is an engineering estimate rather than a measured value, flag it as such so DEC can review it on the right footing.

What Happens After You File

For an individual permit, the sequence is defined. You submit the completed package to the appropriate DEC Regional Office. Some general permits allow filing through DEC’s electronic business portal, which speeds up intake. Once DEC determines the package is complete, it issues a notice of complete application and starts its technical review.

DEC then prepares a draft permit setting proposed effluent limits and conditions. The draft goes to public notice for at least 30 days, during which anyone can submit written comments or request a public hearing.¹¹ Community groups, neighbors, and environmental organizations use this window to weigh in. If comments raise significant issues, DEC may revise the draft or hold a hearing.

When the comment period closes, DEC completes its final review and, if the application meets the requirements of 6 NYCRR Part 750, issues the final permit with binding discharge limits, monitoring schedules, and reporting requirements. Timelines vary. Straightforward renewals can take months; contested permits for major industrial facilities take considerably longer.

Annual Fees

DEC does not charge an upfront application fee. Instead, the department assesses annual Environmental Regulatory Program Fees that depend on facility type, authorization type, and discharge volume.⁷ The range is wide.

General Permit Fees

Construction: $110 per year, plus a one-time initial authorization fee of $110 per disturbed acre and $675 per future impervious acre.
MSGP (industrial stormwater): $110 per year.
CAFO (medium or large): $50 per year.

Individual Permit Fees

Industrial: $675 per year under 10,000 gallons per day, scaling to $56,000 per year at 10 million gallons per day or more.
Municipal: $425 per year under 200,000 gallons per day, up to $38,500 per year at 40 million gallons per day or more.
Private, commercial, or institutional: $330 per year under 100,000 gallons per day; $675 per year at or above that threshold.
Power plants: $56,000 per year regardless of size.

The schedule is set under ECL Article 72, Title 6. DEC’s own guidance notes that where the regulatory fee schedule conflicts with the statute, the statute controls.

Permit Term and Renewal

SPDES permits issued in place of federal NPDES permits last up to five years. Other SPDES permits can last up to ten.¹²

If you plan to keep discharging past the expiration date, file a renewal application at least 180 days before that date.¹³ This is the deadline worth putting on every calendar in the compliance office. File a timely and sufficient renewal and your existing permit stays in force under State Administrative Procedure Act §401(2) until DEC acts, however long that takes. Miss the 180-day window and you lose that administrative continuation; operating on an expired permit without a pending renewal opens you to enforcement.

Transferring a Permit When Ownership Changes

A SPDES permit does not automatically travel with the property in a sale or merger. The new owner must submit a written transfer application to DEC at least 30 days before the transfer takes place to keep the facility operating without interruption.¹⁴ DEC provides a standard transfer form signed by both the current and new owner.¹⁵

A transfer only moves the existing authorization. If the new owner intends to change the volume or composition of the discharge beyond what the permit allows, a transfer is not enough; a complete new permit application is required, which restarts the full review.

Modifying an Existing Permit

Facilities change, and DEC has authority to modify SPDES permits under 6 NYCRR 750-1.18. Either the permittee or the department can initiate a modification. Grounds include correcting typographical or calculation errors, incorporating new legal requirements, adjusting limits to accommodate a waste load allocation under a Total Maximum Daily Load, or addressing a special condition that has not achieved its intended objective.¹⁶ If your operation is about to change in a way that affects discharge volume or composition, raise it with DEC before the change happens rather than after.

Monitoring, Reporting, and Recordkeeping

Getting the permit is the start. Holding it means ongoing obligations that run for the full term.

Discharge Monitoring Reports

Permittees submit Discharge Monitoring Report data electronically through EPA’s NetDMR system.¹⁷ The DMR is due within 28 days after the end of the monitoring period, unless DEC specifies a different deadline.¹⁸ That deadline applies whether or not you received a pre-printed form from DEC.

Record Retention

Keep all monitoring records for at least five years from the date of the sample, measurement, report, or application. That includes calibration and maintenance logs, original strip chart recordings for continuous monitoring, copies of all permit-required reports, and the data used to complete the application itself. DEC can extend the retention period beyond five years by written request.¹⁹

Inspections and Information Requests

DEC can enter and inspect permitted facilities at reasonable times to verify compliance, and permittees must furnish any information DEC asks for to assess compliance or to evaluate whether grounds exist to modify, suspend, or revoke the permit.²⁰ Inspections typically cover monitoring equipment, sampling methodology, lab procedures, and recordkeeping.

Reporting Exceedances

If your facility exceeds a permitted limit, report the exceedance to DEC promptly. Waiting for the next scheduled DMR is not sufficient for significant violations. Self-reporting does not immunize you from enforcement, but failing to report compounds the problem and can turn an accidental exceedance into a concealment issue that draws stiffer penalties.

Penalties for Violations

ECL 71-1929 authorizes civil penalties of up to $37,500 per day for each violation of Article 17’s discharge provisions, any regulation adopted under that article, or any term of a SPDES permit.² Courts can also order the discharger to stop entirely by injunction.

The per-day, per-violation structure is what makes these cases serious. A facility discharging without a permit or exceeding its effluent limits for even a few weeks can face six- or seven-figure exposure. DEC’s enforcement discretion means smaller first-time violations may result in consent orders with corrective action plans rather than maximum penalties, but the statutory ceiling gives the agency significant leverage. The practical defense is routine: monitor on schedule, report honestly, and address exceedances before DEC finds them.

1
New York State Senate. New York Environmental Conservation Law 17-0803
2
New York State Senate. New York Environmental Conservation Law 71-1929
3
New York State Senate. New York Environmental Conservation Law 17-0105
4
New York State Department of Environmental Conservation. Stormwater Permit For Construction Activity
5
New York State Department of Environmental Conservation. Concentrated Animal Feeding Operations
6
New York State Department of Environmental Conservation. Multi-Sector General Permit (MSGP)
7
New York State Department of Environmental Conservation. State Pollutant Discharge Elimination System (SPDES) Permit Program
8
New York State Department of Environmental Conservation. DEC Form NY-2A – New and Existing Publicly Owned Treatment Works
9
New York State Department of Environmental Conservation. Form NY-2C – Application Form for Industrial Facilities
10
New York State Department of Environmental Conservation. SPDES Application Procedures And Forms
11
eCFR. 40 CFR 124.10 – Public Notice of Permit Actions and Public Comment Period
12
New York State Senate. New York Environmental Conservation Law 17-0817 – SPDES Permits Duration and Reissuance
13
Legal Information Institute. 6 NYCRR 750-1.16 – Renewal of SPDES Permits
14
New York Rural Water Association. 6 NYCRR Part 750 – State Pollutant Discharge Elimination System Permits – Section 750-1.17
15
New York State Department of Environmental Conservation. Application for Permit Transfer
16
New York Rural Water Association. 6 NYCRR Part 750 – State Pollutant Discharge Elimination System Permits – Section 750-1.18
17
New York State Department of Environmental Conservation. How To Complete And Submit Discharge Monitoring Reports (DMRs)
18
New York State Department of Environmental Conservation. DMR Manual for Completing the Discharge Monitoring Report for the SPDES
19
New York Rural Water Association. 6 NYCRR Part 750 – State Pollutant Discharge Elimination System Permits – Section 750-2.5
20
Suffolk County. SPDES Discharge Permit General Conditions