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Indiana Department of Environmental Management

IDEM > Forms > NPDES Form 2C Application Package > Form 2C Supplemental Instructions Form 2C Supplemental Instructions

In order to avoid unnecessary effort, please read all instructions carefully before completing the applications. (For example, small industries should see "small business exemption," page 2C-3). In addition, you may disregard all reference to the EPA ID number when completing these forms unless an ID number has already been obtained from EPA.


Form 2C is to be completed by industries with a direct discharge of process wastewaters including wastewaters for which a Federal Effluent Limitation Guideline has been promulgated who are applying for renewal of their NPDES permit or who have not yet applied for an NPDES permit for a current discharge of process wastewaters. Additionally, a General Information Form must be completed and submitted with Form 2C. Other forms are available for proposed new and for existing facilities which do not discharge process wastewater (Form 2E) and for those industries with proposed facilities which are new sources or new dischargers of process wastewater (Form 2D). Public Water Supplies with a direct discharge of filter backwash or lime softener wastewater should complete and submit a Public Water Supply Permit Application Package. These application forms may be obtained by calling 317/233-0468.

In addition to the above, an "Application for Permit to Discharge Storm Water Associated With Industrial Activity" (Form 2F) may need to be submitted. The facilities covered by this requirement are included in the Federal Regulation 40 CFR 122.26(b)(14). Form 2F must be submitted if the industry is included in the definition and there are point source discharges which are composed entirely of storm water and/or if storm water is combined with either process or nonprocess wastewater. For further information and to request the 2F form, call 317/233-6725 and ask for the Storm Water Desk.

Application Requirements

Some confusion may exist when completing Part V-C of Form 2C as to whether a particular wastestream should be considered a process wastewater. This distinction is important if your company is in fact one of the 34 "primary" industries listed in Table 2C-2. For the purpose of completing this application, this Agency shall consider the following waters to be nonprocess wastewaters: (1) sanitary wastewater (including restaurant or cafeteria wastes); (2) once-through noncontact cooling waters; (3) cooling tower blowdown (except from those industries for which cooling tower blowdown is considered a process wastewater, i.e. steam electric power plants); (4) water from stone, sand, and gravel quarries; and (5) water used solely for intake screen backwash. If the above wastewaters are contributors to a discharge from a facility which also discharges process wastewater, then you must test for a pollutant in Part V-C only if that pollutant is believed to be present.

Several "primary industries" have had sampling requirements suspended. If you feel this requirement is inappropriate for your facility, you may contact this office to discuss the matter.

Special care should be taken by all industries when determining whether a pollutant may be present in a discharge. All water additives used at your facility should be examined with respect to their active ingredients. Specifically, this Agency requests that the information listed on the Application for Approval to Use Water Treatment Additives concerning the usage of any water conditioning or biofouling control agents be submitted as a supplement to your application. If no additives are used, please make a statement to that effect in your transmittal letter.

A flow diagram must be included in accordance with Form 2C Instructions, Item II-A. In addition, a separate narrative description of your manufacturing or materials processing operation should be included to aid the permit writer in preparing the permit. The manufacturing description may be included as a part of Item 13 of the General Information Form. If EPA effluent limitation guidelines are based on production, it is most important to give the production figures asked for in Item III-C of Form 2C. Also include when applicable, the particular EPA effluent limitation guidelines subcategory or subcategories in which the manufacturing operation lies, and the production figures for each subcategory. Except for the Petroleum Refining Category, the production figures are to be representative of actual production rather than a design rate or capacity.

As is the case with some permittees, the expiration date of the current permit may pass before a renewal permit is issued. However, if an application for permit renewal is submitted in a complete and timely manner, the current permit will remain in full force and effect, pursuant to IC 13-18-19-1, and 327 IAC 5-2-6(b), notwithstanding the expiration date, until a renewal permit becomes effective.

Water Treatment Additives Information

Dischargers utilizing water treatment additives in their treatment systems must include the requested information in the Application for Approval to use Water Treatment Additives. This information must also be provided any time that water treatment additives are changed during the term of the NPDES permit. Approval from the IDEM is required prior to the use of any water treatment additive.

Identification of Potentially Affected Persons

Please see the enclosed form, "Identification of Potentially Affected Persons". Include with the completed application the attached form to fully identify all persons, by name and mailing address, who may be affected by the issuance of this permit (i.e. the discharge from the facility). These parties may include but not necessarily be limited to adjoining landowners, persons with a proprietary interest, or the first downstream non-adjacent property owner. Also, include the name of any fish and wildlife or conservation groups, downstream marinas, etc., which may be potentially affected, and/or persons who may have expressed concern regarding the discharge. Failure to fully identify a potentially affected person may result in any issued permit being challenged and rendered null and void.

Updated Fee Information

The following revised fees were established, pursuant to IC 13-18-20-12, effective March 18, 1994 to defray the costs of processing the permit applications for the NPDES permit program from all NPDES permit applicants:

  1. When an application is filed with the Indiana Department of Environmental Management (IDEM), concerning a NPDES Permit action a fifty dollar ($50) application fee must be remitted. A permit action includes an application for an initial permit, the renewal of a permit, the modification of a permit, or a variance of a permit or permit limitation. If the application fee is not remitted the IDEM shall deny the permit application.
  2. The permittee will remit the fee at the time the application, or a. request for modification is filed with the IDEM. No fee will be assessed for permit modifications initiated by the IDEM.
  3. For construction activity subject to 327 IAC 15-5, a fee of one hundred dollars ($100) shall be submitted with a Notice of Intent (NOI) letter.
  4. The fees specified above will be payable to the Indiana Department of Environmental Management. Any fee submitted will not be refundable once substantive processing of the permit application has commenced.

Additionally the issuance of (or existence of) a NPDES Permit will require the permittee to pay an annual fee for which billing will be made by the IDEM, all in accordance with Senate Enrolled Act 417, which was signed into law on March 18, 1994. This new schedule supersedes the fee schedule established in 327 IAC 5, 6, and 8. If there are any questions pertaining to the annual fee schedule contained in the regulation, they should be directed to the Program Management Section at 317/233-0569.

Please send the completed forms and appropriate fee together with a cover letter to the Indiana Department of Environmental Management, Office of Water Quality, NPDES Permits Section, 100 N. Senate Ave., MC 65-40, Indianapolis, Indiana 46204-2251.