PART IV. STORMWATER POLLUTION PREVENTION PLAN (SWPPP)

A. General SWPPP Requirements

1. A SWPPP shall be developed, implemented, and maintained for each facility authorized by this permit.

2. A SWPPP shall be completed prior to submitting the permit application for authorization to discharge industrial stormwater from a facility.

3. Permittees authorized under the previous version of this permit shall modify the SWPPP to comply with the requirements of this permit prior to submitting the application.

4. The SWPPP shall identify the individual(s) responsible for managing, implementing, maintaining, modifying, and ensuring compliance with the facility’s SWPPP.

5. The Permittee shall incorporate into the SWPPP, a section specific to any mobile industrial activities conducted away from the permitted facility. The section shall address each stormwater control measure required by Part III of the permit, and requirements in Part VII, 1-6 of all applicable sectors. The Permittee shall ensure a copy of this section of the SWPPP is kept at the location where the mobile industrial activity occurs.

6. Any SWPPP requirements outlined in Part VII, (sector-specific), shall be in addition to SWPPP requirements in Part IV.

7. The SWPPP shall list all personnel who are appropriately trained to conduct facility inspections.

8. Records of all inspections conducted in accordance with Part III.F shall be maintained with the SWPPP.

9. All information pertaining to maintenance required by Part III.G shall be kept with the SWPPP.

10. All documentation pertaining to the elimination of unauthorized non-stormwater discharges as required by Part III.H shall be included with the SWPPP.

11. The SWPPP shall contain, or the Permittee shall keep as a separate document, any documentation required by the Spill Prevention and Response Requirements of Part III.I.

12. The SWPPP shall contain a Mercury Minimization Plan if the Permittee has discovered mercury sources as a result of compliance with Part III.J.

12. The SWPPP shall contain a Mercury Minimization Plan if the Permittee has discovered mercury sources as a result of compliance with Part III.J.

13. All information regarding the Employee Training Program required by Part III.J shall be included with the SWPPP, or kept as a separate document.

B. Specific SWPPP Requirements

1. The SWPPP shall be used by the Permittee to document all BMPs used to comply with each stormwater control measure required in Part III. BMPs shall be designed and implemented to address the potential pollutants associated with the activities and materials identified by the Permittee in Part IV.B.4. The documentation shall include the following:

a. A list of all non-structural BMPs designed and implemented at the facility.

b. A list of all structural BMPs designed and implemented at the facility.

2. Facility Description. The SWPPP shall include:

a. A narrative description of the industrial activities conducted at the facility.

b. The total size of the facility property in acres.

c. A calculation of the facility acreage that has industrial activity and/or significant materials in contact with stormwater, from new or existing facilities since January 1, 1988. The calculation excludes acreage that does not have the potential to discharge industrial stormwater (e.g. natural and landscaped areas, employee parking lots, and office buildings, etc).

3. Facility Map(s)

The facility map(s) shall be of 1:24,000 scale or larger (e.g. United States Geological Survey map or equivalent), and must depict the following:

a. Location of the facility in relation to surface waters (including the name of the surface water; if the name is not known, indicate that on the map), receiving industrial stormwater discharges from the facility.

b. Location of all impervious surfaces within the facility property boundaries.

c. Directions of stormwater flow indicated by arrows.

d. Location of all activities and materials identified in Part IV.B.4.

e. Location of all structural BMPs.

f. Location of all impaired waters within one mile of any monitoring location. The Permittee shall include the name of the impaired water and the impairment (e.g. impaired for biota fish, turbidity, nutrients, etc).

g. Location and name of any waters described in Appendix A if the water(s) receives industrial stormwater discharges from a monitoring location that flows to, and is within one mile of, the Appendix A water.

h. Location of all storm sewer inlets.

i. Location of all loading dock drains, including those that connect to a storm sewer.

j. Location of each benchmark monitoring location. Each benchmark monitoring location shall be assigned a unique identifying number (e.g. BML01, BML02, BML03, etc.) that will be used when submitting monitoring data to the Agency. Each benchmark monitoring location from which a discharge flows to, and is within one mile of, an impaired water shall be clearly labeled.

k. Location of each effluent monitoring location that will be monitored (if applicable). Each effluent monitoring location shall be assigned a unique identifying number (e.g. EML01, EML02, EML03, etc.) that will be used when submitting monitoring data to the Agency.

l. Location and description of any non-stormwater discharges as authorized in Part I.A.2.

4. Facility Assessment of Activities and Materials

a. Assessment of Activities

The facility SWPPP shall include an assessment and inventory/list of activities that can potentially be sources of pollutants to stormwater discharges associated with industrial activity. These activities include, but are not limited to:

1. Fueling.

2. Vehicle and equipment maintenance.

3. Loading and unloading of dry bulk materials or liquids.

4. Liquid storage tanks.

5. Outdoor manufacturing and processing.

6. Outdoor storage of significant materials.

7. Access roads, rail cars, and tracks.

8. Waste treatment, storage, or disposal including waste ponds, dumpsters, and solid waste storage or management.

9. Dust or particulate-generating processes including dust collection devices and vents.

10. Rooftops contaminated by pollution control devices.

b. Assessment of Materials and Associated Pollutants

The SWPPP shall include documentation of an assessment and inventory/list of materials handled or stored at the facility that can potentially be a source of pollutants to stormwater discharges associated with industrial activity. The assessment shall also include pollutant constituents (e.g. crankcase oil, zinc, sulfuric acid, cleaning solvents, etc) associated with each type of material identified below.

1. Raw materials.

2. Intermediate products.

3. By-products.

4. Final products, and

5. Waste products.

5. SWPPP Modification Requirements

The Permittee shall review the SWPPP at least annually and modify the SWPPP as necessary, if:

a. There is construction or a change in design, operation, or maintenance at the facility that affects stormwater management or compliance with this permit.

b. The Permittee has identified a monitoring location from which the discharge flows to, and is within one mile of, an impaired water.

c. A routine inspection, compliance evaluation, or visual inspection identifies deficiencies in the SWPPP and/or BMPs.

d. Additional stormwater control measures and BMPs are necessary to meet applicable water quality standards or to address exceedances of benchmark values.

e. There is an unauthorized discharge from the facility. If the SWPPP modification is based on a release or unauthorized discharge, include in the modified SWPPP a description and date of the release, the circumstances leading to the release, actions taken in response to the release, and measures to prevent the recurrence of such releases. Unauthorized releases and discharges are subject to the reporting requirements in Part IV.B.7.

6. SWPPP Availability Requirements

The SWPPP must be kept at the industrial facility and made available to the Agency within 72 hours of a request for review. (Minn. R. 7090.3040, subp. 2).

7. SWPPP Reporting Requirements and Submittals

a. Annual Report

The Permittee shall submit an Annual Report on a form provided by the Agency by March 31st of each year the Permittee is authorized to discharge industrial stormwater under this permit. Each Annual Report shall cover those portions of the previous calendar year the Permittee was authorized to discharge industrial stormwater. The Annual Report shall include, at a minimum, the following information:

1. A summary of inspection dates, findings, and any BMP maintenance conducted by the Permittee during the course of the reporting year.

2. If applicable, the results of any inspection requirements of Part VII (sector-specific requirements) involving oil and grease.

3. A confirmation that the SWPPP accurately reflects facility conditions.

4. A confirmation that newly-exposed significant materials (if any) have been identified and that the SWPPP has been modified to address them.

5. A confirmation that the Permittee has conducted a review of impaired waters and that the SWPPP has been modified to address applicable permit requirements of Part V, if necessary.

6. A confirmation that the Permittee has conducted a review of USEPA-approved TMDLs that may apply to the facility and that may require the Permittee to comply with Part I.B.j of the permit.

7. A description of any SWPPP modification made in accordance with Part IV.B.5, including any information supporting the use of a monitoring waiver outlined in Part V.B.6.

8. A list of all spills and leaks (as defined in Minn. Stat. § 115.061) that occurred at the facility during the reporting year.

9. If applicable, a summary of all mobile industrial activities conducted by the facility. At a minimum, the summary shall include a description (including SIC code and/or narrative activity), locations where the mobile industrial activity occurred (including latitude and longitude coordinates), and length of time the mobile industrial activity operated at each location.

b. Submitting Reports

The Permittee may submit the Annual Report form and other submittals required in this permit by using an electronic submittal process or by mailing to the following address:

MPCA
Attn: WQ Submittals Center
520 Lafayette Road North
St. Paul, MN 55155-4194

This page was last edited on 2 April 2013, at 13:23.