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NPDES General Permits

Note: For general permits not in the NPDES program, use these links:


Whenever a municipality, industry, or other entity wishes to discharge water to a surface water of the State, they must first obtain a permit from Ohio EPA's Division of Surface Water (DSW). This permit is called a National Pollutant Discharge Elimination System (NPDES) permit. NPDES permits regulate wastewater discharges by limiting the quantities of pollutants to be discharged and imposing monitoring requirements and other conditions. The limits and/or requirements in the permit help ensure compliance with Ohio's Water Quality Standards and Federal Regulations, all of which were written to protect public health and the aquatic environment.

In August of 1992, the U.S. EPA delegated to Ohio EPA the authority to issue general NPDES permits. Ohio law regarding general permits (Ohio Revised Code Section 6111.035) was originally written to apply to coal mining and reclamation activities. It was revised to expand the scope of general permits to stormwater discharges and then, in 1993, to include wastewater discharges with a de minimis impact on the receiving stream. Rules addressing the general NPDES permit program are in Ohio Administrative Code Chapter 3745-38. DSW is in the process of developing and issuing general permits for a variety of discharges in order to increase efficiency and to help make it easier for various dischargers to obtain an NPDES permit.

Types of Permits

There are two types of NPDES permits; individual and general. An individual NPDES permit is unique to each facility. The limitations and requirements in an individual permit are based on the facility's operations, type and amount of discharge, and receiving stream, among other factors. Because some of the individual permits contain very similar or, in many cases, identical effluent limitations and requirements, their contents have been compiled into one permit that can be applied to certain categories of discharges. This is a general permit.

A general permit is one permit that covers facilities that have similar operations and type of discharge. A general NPDES permit is a potential alternative to an individual NPDES permit and affords coverage to new and existing dischargers that meet the eligibility criteria given in the general permit. General permits are used to cover discharges that will have a minimal effect on the environment.

Advantages of a General Permit

There are several advantages to obtaining coverage under a general NPDES permit instead of an individual NPDES permit, such as:

  • Simplified one-page application form.
  • The one-page application form doesn't require the inclusion of effluent data.
  • Ohio EPA processing time is reduced, allowing quicker review time.
  • Permit consistency with other similar facilities.
  • Permit requirements are available prior to applying.
  • Annual discharge fee may not apply.

Recent Activities

General Permits

Applying for Coverage

General NPDES permits are usually issued for up to five years. Upon expiration, the permit is revised if necessary and renewed. When a permit is issued, a discharger may review the permit and decide whether or not to apply for coverage.

Before the discharger decides to apply for coverage under the general permit, their discharge must be able to meet all of the requirements and effluent limitations in the general permit.

To apply for general permit coverage, the discharger submits a notice of intent (NOI) application form. Ohio EPA will review the NOI and send a letter informing the discharger of the approval or denial of their general permit coverage.

If the discharger decides not to apply for general permit coverage, they must apply for an individual permit. Ohio EPA is not required to approve all general permit applicants to be covered by the general permit, but may require the discharger to apply for an individual permit if environmental concerns exist that are not addressed by the general permit. It is preferred that each facility be covered by only one NPDES permit (i.e., the individual permit).

NOI (Notice of Intent) and NOT (Notice of Termination) application forms and instructions are available in electronic format, information is below.

STREAMS application submittal system!

As of 2/1/17, application forms are now only accessible electronically via the Ohio EPA eBusiness center.

PLEASE NOTE : Consultants CANNOT PIN (i.e., electronically sign) applications on behalf of their clients. Consultants can COMPLETE and SAVE an application then DELEGATE it to their client to PIN and submit. See the one-page walkthrough guide.

Access the General Permit NOI, NOT, NOE, Co-Permittee NOI/NOT, and Individual Lot NOI/NOT forms through your Ohio EPA eBusiness Center account and submit electronically. The NPDES Permit Transfer form is located below. Visit DSW's Electronic Business Services website for more information, guidance, and reporting questions.

NOI Processing Fee Table

As of July 1, 2001, theindustrialstormwaterNOIfee is $350. All construction storm water NOI fee is $200 plus $20 per whole disturbed acre (do not round-up) above 5 whole acres, with a maximum disturbed acreage fee of $300. Under this fee schedule, site with twenty or more disturbed acres would pay the maximum fee of $500. These fees can be foundin paragraph (S)(1) of Ohio Revised Code (ORC) Section 3745.11.

Industrial Storm Water NOI Total Fee Due = $350.00
Marina Storm Water Total Fee Due = $350.00
All Construction Storm Water NOI Fees
Disturbed Acreage
Base Fee
Additional Acreage Fee
Total Fee Due
1 - 5.99 acres
0 200
6 - 6.99 acres
200 20 220
7 - 7.99 acres
200 40 240
8 - 8.99 acres
200 60 260
9 - 9.99 acres
200 80 280
10 - 10.99 acres
200 100 300
11 - 11.99 acres
200 120 320
12 - 12.99 acres
200 140 340
13 - 13.99 acres
200 160 360
14 - 14.99 acres
200 180 380
15 - 15.99 acres
200 200 400
16 - 16.99 acres
200 220 420
17 - 17.99 acres
200 240 440
18 - 18.99 acres
200 260 460
19 - 19.99 acres
200 280 480
20 acres and up
200 300 500 Maximum Fee
All other NOIs Total Fee Due = $200.00

NOI Effluent Tables

From “Instructions - Notice of Intent (NOI) Application form For Requesting Coverage Under An Ohio Environmental Protection Agency General Permit”

Effluent Table: This item does not apply to construction, small MS4, or coal surface mining general permit applicants. Select the appropriate effluent table for each outfall to be covered under the general permit. For example, applicants seeking coverage under the small sanitary general permit (OHS000004) for a non-lagoon sanitary discharge greater than 5,000 gallons per day to the Ohio River should select Table 002 – Non-lagoons, Ohio R. direct, flow 5,000 gpd or greater. See the list below or select a table from the drop-down list on the form if available.

OHB000002 – Table 001, Type A or Type B facilities
OHB000002 – Table 002, Type C facilities
OHH000002 – Table 001, Discharge from new/unused pipes & tanks
OHH000002 – Table 002, Discharge from used pipes & tanks
OHK000002 – Table A.1, Non-lake Erie dischargers
OHK000002 – Table A.2, Lake Erie direct dischargers
OHN000004 – Table 001, Flow 1-9,999 gpd
OHN000004 – Table 002, Flow 10,000 – 99,999 gpd
OHN000004 – Table 003, Flow 100,000 gpd or more
OHO000001 – Table 001
OHS000004 – Table 001, Non-lagoons, not Ohio R., flow 5,000 gpd or more
OHS000004 – Table 002, Non-lagoons, Ohio R. direct, flow 5,000 gpd or more
OHS000004 – Table 003, Non-lagoons, not Ohio R., flow 1,500-4,999 gpd
OHS000004 – Table 004, Non-lagoons, Ohio R. direct, flow 1,500-4,999 gpd
OHS000004 – Table 005, Non-lagoons, not Ohio R., flow 1-1,499 gpd
OHS000004 – Table 006, Non-lagoons, Ohio R. direct, flow 1-1,499 gpd
OHS000004 – Table 001, Continuous Discharge Lagoons
OHT000002 – Table 001
OHU000005 – Table 001, Low to medium hardness watersheds
OHU000005 – Table 002, Medium to high hardness watersheds
OHV000003 – Table 001
OHW000003 – Table 001, Plain Purification, Ohio R.
OHW000003 – Table 002, Plain Purification, non-Ohio R., low flow stream
OHW000003 – Table 003, Plain Purification, non-Ohio R., high flow
OHW000003 – Table 004, Lime-soda, low flow stream
OHW000003 – Table 005, Lime-soda, high flow stream
OHW000003 – Table 006, Iron & Manganese, low flow stream
OHW000003 – Table 007, Iron & Manganese, high flow stream


Stormwater general permits: see the Stormwater Program Contacts page 

Other general permits:

Cole Miller NPDES Manager 614-721-8800