JB_CHS_NPDES_General_Industrial_Stormwater_Permit.pdf

NPDES GENERAL PERMIT FOR

STORM WATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY

TABLE OF CONTENTS

1. Coverage under this Permit. 5

1.1 Eligibility. 5

1.1.1 Facilities Covered. 5

1.1.2 Allowable Stormwater Discharges. 5

1.1.3 Allowable Non-Stormwater Discharges. 6

1.1.4 Limitations on Coverage. 8

1.1.4.1 Discharges Mixed with Non-Stormwater. 8

1.1.4.2 Stormwater Discharges Associated with Construction Activity. 8

1.1.4.3 Discharges Currently or Previously Covered by Another Permit. 8

1.1.4.4 Stormwater Discharges Subject to Effluent Limitations Guidelines. 8

1.1.4.5 Consistency with Municipal Separate Storm Sewer Systems (MS4). 8

1.1.4.6 [Reserved] 9

1.1.4.7 New Discharges to Water Quality Impaired Waters. 9

1.1.4.8 New Discharges to Waters Designated as ONRW for Antidegradation Purposes. 9

1.2 Permit Compliance. 9

1.3 Authorization under this Permit. 9

1.3.1 How to Obtain Authorization. 10

1.3.2 Continuation of this Permit. 12

1.4 Terminating Coverage. 12

1.4.1 Submitting a Notice of Termination. 12

1.4.2 When to Submit a Notice of Termination. 12

1.5 Conditional Exclusion for No Exposure. 13

1.6 Alternative Permits. 13

1.6.1 Department Requiring Coverage under an Alternative Permit. 13

1.6.2 Permittee Requesting Coverage under an Alternative Permit. 14

1.7 Severability. 14

2. Control Measures and Effluent Limits. 14

2.1 Control Measures. 15

2.1.1 Control Measure Selection and Design Considerations 15

2.1.2 Non-Numeric Technology-Based Effluent Limits (BPT/BAT/BCT). 15

2.1.2.1 Minimize Exposure. 15

2.1.2.2 Good Housekeeping. 16

2.1.2.3 Maintenance. 16

2.1.2.4 Spill Prevention and Response Procedures. 17

2.1.2.5 Erosion and Sediment Controls. 18

2.1.2.6 Management of Runoff. 18

2.1.2.7 Salt Storage Piles or Piles Containing Salt/Pavement Deicing Activities 18

2.1.2.8 Sector Specific Non-Numeric Effluent Limits. 19

2.1.2.9 Employee Training. 19

2.1.2.10 Non-Stormwater Discharges. 19

2.1.2.11 Waste, Garbage and Floatable Debris. 20

2.1.2.12 Dust Generation and Vehicle Tracking of Industrial Materials. 20

2.1.3 Numeric Effluent Limitations Based on Effluent Limitations Guidelines 20

2.2 Water Quality-Based Effluent Limitations. 20

2.2.1 Water Quality Standards 20

2.2.2 Discharges to Water Quality Impaired Waters. 21

2.2.2.1 Existing Discharge to an Impaired Water with an EPA Approved or Established TMDL. 21

2.2.2.2 Existing Discharge to an Impaired Water without an EPA Approved or Established TMDL. 21

2.2.2.3 New Discharge to an Impaired Water. 21

2.2.3 Antidegradation Requirements for New or Increased Dischargers 21

2.3 [Reserved] 22

3. Corrective Actions 22

3.1 Conditions Requiring Review and Revision to Eliminate Problem 22

3.2 Conditions Requiring Review to Determine if Modifications Are Necessary 22

3.3 Corrective Action Deadlines 23

3.4 Corrective Action Report 24

3.5 Effect of Corrective Action 24

3.6 Substantially Identical Outfalls 24

4. Inspections 24

4.1 Routine Facility Inspections. 24

4.1.1 Routine Facility Inspection Procedures. 25

4.1.2 Routine Facility Inspection Documentation. 25

4.1.3 Exceptions to Routine Facility Inspections. 25

4.2 Quarterly Visual Assessment of Stormwater Discharges. 26

4.2.1 Quarterly Visual Assessment Procedures. 26

4.2.2 Quarterly Visual Assessment Documentation. 27

4.2.3 Exceptions to Quarterly Visual Assessments. 27

4.3 Comprehensive Site Inspections. 28

4.3.1 Comprehensive Site Inspection Procedures. 31

4.3.2 Comprehensive Site Inspection Documentation. 31

5. Stormwater Pollution Prevention Plan (SWPPP). 30

5.1 Contents of Your SWPPP. 31

5.1.1 Stormwater Pollution Prevention Team. 31

5.1.2 Site Description. 31

5.1.3 Summary of Potential Pollutant Sources. 33

5.1.3.1 Activities in the area. 33

5.1.3.2 Pollutants. 33

5.1.3.3 Spills and Leaks. 33

5.1.3.4 Non-Stormwater Discharges. 33

5.1.3.5 Salt Storage. 34

5.1.3.6 Sampling Data. 34

5.1.4 Description of Control Measures. 34

5.1.4.1 Control Measures to Meet Technology-Based and Water Quality-Based Effluent Limits. 34

5.1.5 Schedules and Procedures 34

5.1.5.1 Pertaining to Control Measures Used to Comply with the Effluent Limits in Part 2. 34

5.1.5.2 Pertaining to Monitoring and Inspection. 35

5.1.6 [Reserved]. 35

5.1.7 Signature Requirements. 36

5.2 Required SWPPP Modifications. 36

5.3 SWPPP Availability. 37

5.4 Additional Documentation Requirements. 37

6. Monitoring. 38

6.1 Monitoring Procedures 38

6.1.1 Monitored Outfalls. 38

6.1.2 Commingled Discharges. 39

6.1.3 Measurable Storm Events. 39

6.1.4 Sample Type. 39

6.1.5 Adverse Weather Conditions. 39

6.1.6 Climates with Irregular Stormwater Runoff. 40

6.1.7 Monitoring Periods. 40

6.1.8 Monitoring for Allowable Non-Stormwater Discharges 40

6.1.9 Parameter Codes for Reports of Monitoring Data 39

6.2 Required Monitoring. 41

6.2.1 Benchmark Monitoring. 42

6.2.1.1 Applicability of Benchmark Monitoring. 42

6.2.1.2 Benchmark Monitoring Schedule. 42

6.2.1.3 Exception for Inactive and Unstaffed Sites. 44

6.2.2 Effluent Limitations Monitoring. 45

6.2.2.1 Monitoring Based on Effluent Limitations Guidelines. 45

6.2.2.2 Substantially Identical Outfalls. 45

6.2.3 [Reserved] 45

6.2.4 Discharges to Impaired Waters Monitoring. 45

6.2.4.1 Permittees Required to Monitor Discharges to Impaired Waters. 46

6.2.4.2 Impaired Waters Monitoring Schedule. 47

6.2.5 Additional Monitoring Required by the Department. 49

6.3 Follow-up Actions if Discharge Exceeds Numeric Effluent Limit. 49

6.3.1 Submit an Exceedance Report. 49

6.3.2 Continue to Monitor. 50

7. Reporting and Recordkeeping 50

7.1 Reporting Monitoring Data to the Department. 50

7.2 [Reserved] 50

7.3 Exceedance Report for Numeric Effluent Limits 50

7.4 Additional Reporting. 51

7.5 Recordkeeping. 52

7.6 Addresses for Reports 52

8. Sector Specific Requirements 54 8A. Sector A: Timber Products 54 8B. Sector B: Paper and Allied Products 58 8C. Sector C: Chemicals and Allied Products Manufacturing 59 8D. Sector D: Asphalt Paving and Roofing Materials and Lubricant Manufacturing 61 8E. Sector E: Glass, Clay, Cement, Concrete, and Gypsum Products 63 8F. Sector F: Primary Metals 65 8G. Sector G: Metal Mining (Ore Mining and Dressing) 67 8H. Sector H: Coal Mines and Coal Mining-Related Facilities 86 8I. Sector I: Oil and Gas Extraction and Refining 86 8J. Sector J: Mineral Mining and Dressing 86 8K. Sector K: Hazardous Waste Treatment, Storage, or Disposal Facilities 87 8L. Sector L: Landfills, Land Application Sites, and Open Dumps 91 8M. Sector M: Automobile Salvage Yards 95 8N. Sector N: Scrap Recycling Facilities 97 8O. Sector O: Steam Electric Generating Facilities 102 8P. Sector P: Land Transportation and Warehousing 105 8Q. Sector Q: Water Transportation 107 8R. Sector R: Ship and Boat Building and Repairing Yards 110 8S. Sector S: Air Transportation Facilities 113 8T. Sector T: Treatment Works 119 8U. Sector U: Food and Kindred Products 121 8V. Sector V: Textile Mills, Apparel, and Other Fabric Product Manufacturing; Leather and Leather Products 123 8W. Sector W: Furniture and Fixtures 125 8X. Sector X: Printing and Publishing 126 8Y. Sector Y: Rubber, Miscellaneous Plastic Products, and Miscellaneous Manufacturing Industries 128 8Z. Sector Z: Leather Tanning and Finishing 130 8AA. Sector AA: Fabricated Metal Products 132 8AB. Sector AB: Transportation Equipment, Industrial or Commercial Machinery 135 8AC. Sector AC: Electronic, Electrical, Photographic, and Optical Goods 136 8AD. Sector AD: Non-Classified Facilities 137

Appendices Appendix A Definitions and Acronyms Appendix B Standard Permit Conditions Appendix C Areas Covered Appendix D Activities Covered Appendix E Procedures relating to Endangered Species Appendix F National Historic Preservation Act Procedures Appendix G Notice of Intent Appendix H Notice of Termination Appendix I Comprehensive Site Inspection and Reporting Form Appendix J Calculating Hardness in Receiving Waters for Hardness Dependent Metals Appendix K No Exposure Certification

NPDES GENERAL PERMIT FOR STORM WATER DISCHARGES

ASSOCIATED WITH INDUSTRIAL ACTIVITY (IGP) (Except Construction)

SCR000000

1. Coverage under this Permit.

1.1 Eligibility.

1.1.1 Facilities Covered.

To be eligible to discharge under this permit, you must (1) have a storm water discharge associated with industrial activity from your primary industrial activity, as defined in Appendix A, provided your primary industrial activity is included in Appendix D, or (2) be notified by the Department that you are eligible for coverage under Sector AD of this permit. This permit also authorizes storm water discharges from any industrial activity designated by the Department where the designation is based on the potential for contribution to a violation of a water quality standard or for significant contribution of pollutants to Waters of the State.

1.1.2 Allowable Storm Water Discharges.

Unless otherwise made ineligible under Part 1.1.4, the following discharges are eligible for coverage under this permit:

1.1.2.1 Storm water discharges associated with industrial activity for any primary industrial activity and co-located industrial activities, as defined in Appendix A;

1.1.2.2 Discharges designated by the Department as needing a storm water permit as provided in Part 8 Sector AD;

1.1.2.3 Discharges that are not otherwise required to obtain NPDES permit authorization but are commingled with discharges that are authorized under this permit;

1.1.2.4 Discharges subject to any of the national storm water-specific effluent limitations guidelines listed in Table 1-1; and

Table 1-1. Storm Water-specific Effluent Limitations Guidelines

Regulated Discharge

40 CFR

Section

Part 8

Sector

New Source

Performance

Standard (NSPS)

New

Source

Date

Discharges resulting from spray down or intentional wetting of logs at wet deck storage areas

Part 429, Subpart I

A Yes 1/26/81

Runoff from phosphate fertilizer manufacturing facilities that comes into contact with any raw materials, finished product, by-products or waste products (SIC 2874)

Part 418, Subpart A

C Yes 4/8/74

Table 1-1. Storm Water-specific Effluent Limitations Guidelines

Regulated Discharge

40 CFR

Section

Part 8

Sector

New Source

Performance

Standard (NSPS)

New

Source

Date

Runoff from asphalt emulsion facilities

Part 443, Subpart A

D Yes 7/28/75

Runoff from material storage piles at cement manufacturing facilities

Part 411, Subpart C

E Yes 2/20/74

Runoff from hazardous waste and non-hazardous waste landfills

Part 445, Subparts A and B

K, L Yes 2/2/00

Runoff from coal storage piles at steam electric generating facilities

Part 423 O Yes 11/19/82 (10/8/74)1

Runoff containing urea from airfield pavement deicing at existing and new primary airports with 1,000 or more annual non-propeller aircraft departures

Part 449 S Yes 6/15/12

1.1.2.5 Discharges subject to any New Source Performance Standards (NSPS) identified in Table 1-1, provided that you consider the requirements of and develop and retain documentation showing that you have complied with requirements of S.C. R.61-68.D, Antidegradation Rules, except that you are not required to submit your alternatives analysis to the Department;

1.1.2.6 Discharges composed of allowable discharges listed in Parts 1.1.2 and 1.1.3 commingled with a stormwater discharge authorized by a different NPDES permit.

1.1.3 Allowable Non-Storm Water Discharges.

The following are the non-storm water discharges authorized under this permit, provided the non-storm water component of your discharge is in compliance with Part 2.1.2.10:

a. Discharges from emergency/unplanned fire-fighting activities;

b. Fire hydrant flushings

c. Potable water, including water line flushings;

d. Uncontaminated condensate from air conditioners, coolers, and other compressors and from the outside storage of refrigerated gases or liquids;

e. Irrigation drainage;

f. Landscape watering, provided all pesticides, herbicides, and fertilizer have been applied in accordance with the approved labeling;

g. Pavement wash waters where no detergents or cleaning products are used (e.g., bleach, 1 NSPS promulgated in 1974 were not removed via the 1982 regulation; therefore wastewaters generated by Part

423-applicable sources that were New Sources under the 1974 regulations are subject to the 1974 NSPS.

hydrofluoric acid, muriatic acid, sodium hydroxide, nonylphenols), and the wash waters do not come into contact with oil and grease deposits, sources of pollutants associated with industrial activities (see Part 5.1.3), or any other toxic or hazardous materials, unless residues are first cleaned up using dry clean-up methods (e.g., applying absorbent materials and sweeping, using hydrophobic mops/rags) and you have implemented appropriate control measures to minimize discharges of mobilized solids and other pollutants (e.g., filtration, detention or settlement)

h. Routine external building washdown/power wash water that does not use detergents or cleaning products such as bleach, hydrofluoric acid, muriatic acid, sodium hydroxide, nonyphenols;

i. Uncontaminated ground water or spring water;

j. Foundation or footing drains where flows are not contaminated with process materials;

k. Incidental windblown mist from cooling towers that collects on rooftops or adjacent portions of your facility, but not intentional discharges from the cooling tower (e.g., piped cooling tower blowdown or drains). The NPDES General Permit for Utility Water Discharges (SCG250000) covers intentional discharges; and

l. Discharges from the spray down of lumber and wood product storage yards where no chemical additives are used in the spray-down waters and no chemicals are applied to the wood during storage (applicable only to Sector A facilities provided the non-stormwater component of the discharge is in compliance with the non-numeric effluent limits requirements in Part 2.1.2).

Unless such discharges are covered under another permit, discharges from fire hydrant and water line flushing must not exceed a total residual chlorine (TRC) concentration at the outfall of 0.5 mg/l.

1.1.3.1 Allowable Non-Stormwater Discharges for Sector G Metal Mining-related

Construction Activities Occurring during the Exploration and Construction Phases of

Mine Development:

a. Water used to wash vehicles and equipment, provided that there is no discharge of soaps, solvents, or detergents used for such purposes;

b. Water used to control dust; and

c. Construction dewatering water that has been treated by an appropriate control under

Part 8.G.4.2.9.

These non-stormwater discharges are only authorized for earth-disturbing activities conducted prior to active mining activities, as defined in Part 8.G.3.2. Once the earth-disturbing activities conducted prior to active mining activities have ceased, the only allowable non-stormwater discharges for Sectors G are those listed in Part 1.1.3.

1.1.3.2 Allowable Non-Stormwater Discharges at the Department’s Discretion

The Department reserves the right to allow certain non-stormwater discharges not explicitly stated in Part 1.1.3 to be authorized by this permit. A written request explaining the nature of the discharges by the permittee must be submitted to the Department and a written approval received by the permittee before the discharges can be treated as “allowable non-stormwater.”

1.1.4 Limitations on Coverage.

Any discharges not expressly authorized in this permit cannot become authorized or shielded from liability under Clean Water Act (CWA) section 402(k) by disclosure to EPA, state, or local authorities after issuance of this permit via any means, including the Notice of Intent (NOI) to be covered by the permit, the Stormwater Pollution Prevention Plan (SWPPP), or during an inspection.

1.1.4.1 Discharges Mixed with Non-Storm Water. Storm water discharges that are mixed with non-storm water, other than those non-storm water discharges listed in Part 1.1.3, are not eligible for coverage under this permit.

1.1.4.2 Storm Water Discharges Associated with Construction Activity. Storm water discharges associated with construction activity disturbing one acre or more, statewide, or disturbing 0.5 acres or more in Horry, Georgetown, Berkeley, Charleston, Dorchester, Colleton, Beaufort, or Jasper County are not eligible for coverage under this permit. These discharges are subject to the requirements found in the NPDES General Permit for Storm Water Discharges from Construction Activities (SCR100000).

1.1.4.3 Discharges Currently or Previously Covered by Another Permit. Unless you received written notification from the Department specifically allowing these discharges to be covered under this permit, you are not eligible for coverage under this permit for any of the following:

a. Storm water discharges associated with industrial activity that are either standalone or are a component of a discharge currently covered under an individual NPDES permit or an alternative NPDES general permit;

b. Discharges covered within five years prior to the effective date of this permit by an individual permit or alternative general permit where that permit established site-specific, numeric water-quality-based limitations developed for the storm water component of the discharge; or

c. Discharges from facilities where any NPDES permit has been or is in the process of being denied, terminated, or revoked by the Department (this does not apply to the routine reissuance of permits).

1.1.4.4 Storm Water Discharges Subject to Effluent Limitations Guidelines. For discharges subject to storm water effluent limitation guidelines under 40 CFR, Subchapter N, only those storm water discharges identified in Table 1-1 are eligible for coverage under this permit.

1.1.4.5 Consistency with Municipal Separate Storm Sewer Systems (MS4). In addition to the applicable requirements of this permit, dischargers covered by this permit must comply with applicable requirements in municipal storm water management programs developed under NPDES permits issued for the discharge of the MS4 that receives the facility's discharge, provided the discharger has been notified of such conditions.

1.1.4.6 [Reserved.]

1.1.4.7 New Discharges to Water-Quality Impaired Waters. If you are a new discharger you are not eligible for coverage under this permit to discharge to an “impaired water”, as defined in Appendix A, unless you:

a. minimize exposure to storm water of the pollutant(s) for which the water body is impaired, and retain documentation of the procedures taken with your SWPPP;

b. document that the pollutant(s) for which the water body is impaired is not present at your site or present above natural background levels, and retain documentation of this finding with your SWPPP; or

c. in advance of submitting your NOI, prepare data to support a showing that the discharge is not expected to cause or contribute to an exceedance of a water quality standard, and retain such data onsite with your SWPPP. To do this, you must include data and other technical information to demonstrate:

i. For discharges to waters without an EPA approved or established TMDL, that the discharge of the pollutant for which the water is impaired will meet in-stream water quality criteria at the point of discharge to the waterbody; or

ii. For discharges to waters with an EPA approved or established TMDL, that there are sufficient remaining wasteload allocations in an EPA approved or established TMDL to allow your discharge and that existing dischargers to the water body are subject to compliance schedules designed to bring the water body into attainment with water quality standards.

Also reference 6.2.4. for further information on Impaired Waters monitoring.

1.1.4.8 New Discharges to Waters Designated as ONRW for Anti-degradation

Purposes. If you are a new discharger, you are not eligible for coverage under this permit for discharges to waters designated by the Department as ONRW (outstanding national resource waters) for anti-degradation purposes under S.C. R. 61-68 and 61-69.

1.2 Permit Compliance.

Any noncompliance with any of the requirements of this permit constitutes a violation of the Clean Water Act (CWA) and the S.C. Pollution Control Act (PCA). As detailed in Part 3 (Corrective Actions) of this permit, failure to take any required corrective actions constitute an independent, additional violation of this permit, CWA, and PCA. As such, any actions and time periods specified for remedying noncompliance do not absolve parties of the initial, underlying noncompliance. However, where corrective action is triggered by an event that does not itself constitute permit noncompliance, such as an exceedance of an applicable benchmark, there is no permit violation, provided you take the required corrective action within the relevant deadlines established in Part 3.3.

1.3 Authorization under this Permit.

All Existing Discharges, New Discharges or Sources, New Owner/Operators of Existing Dischargers, and Other Eligible Discharges are required to meet the requirements outlined in

Section 1.3.1 in order to obtain authorization to discharge under this permit.

1.3.1 How to Obtain Authorization.

a. To obtain authorization under this permit, you must:

i. Be located in South Carolina;

ii. Meet the Part 1.1 eligibility requirements;

iii. Select, design, install, and implement control measures in accordance with

Parts 2.1 and 8 to meet numeric and non-numeric effluent limits;

iv. Submit a complete and accurate Notice of Intent (NOI) in writing* and submit the form to the address listed in Part 7.6.1; and

v. Develop a SWPPP according to the requirements in Part 5 of this permit.

* The Department is transitioning from paper submittals in order to comply with the Cross Media Electronic Reporting Rule (CROMERR). Please refer to the Stormwater website (www.scdhec.gov/stormwater) for instructions and guidance as we develop them.

b. Late Notifications from Existing Operations: Operators are not prohibited from submitting NOI after initiating industrial activities. When a late NOI is submitted, authorization for discharges occurs as for new dischargers. DHEC may take enforcement action for any un-permitted discharge or noncompliance with the PCA or S.C. regulation that occurs between the commencement of the industrial operation and discharge authorization.

c. Timeframes for discharge authorization are contained in Table 1-2.

Table 1-2. NOI Submittal Deadlines/Discharge Authorization Dates

Category NOI Submission

Deadline

Discharge Authorization Date

Existing Dischargers – Having submitted an NOI before the effective date of this permit.

If requested by the Department, no later than 90 days after the effective date of this permit.

17 days after the NOI is received by the Department.

If no NOI is requested by the Department, your authorization under the IGP is automatically continued. See 1.3.2 below. A letter will be sent to all permitted existing dischargers extending coverage under the permit and requiring them to evaluate SWPPP updates.

New Dischargers or New Sources - commencing discharge on or after the effective date of this permit.

A minimum of 17 days prior to commencing discharge.

17 days after the NOI is received by the Department.

Table 1-2. NOI Submittal Deadlines/Discharge Authorization Dates

Category NOI Submission

Deadline

Discharge Authorization Date

New Owner/Operator of Existing Discharger - transfer of ownership and/or operation of a facility whose discharge is authorized under this permit

A minimum of 17 days prior to date that the transfer will take place to the new owner/operator.

17 days after the NOI is received by the Department.

Other Eligible Dischargers - in operation prior to the effective date of this permit, but not covered under the IGP or another NPDES permit.

Immediately, to minimize the time discharges from the facility will continue to be unauthorized.

17 days after the NOI is received by the Department.

1 Based on a review of your NOI or other information, the Department may delay your authorization for further review, may notify you that additional effluent limitations are necessary, or may deny coverage under this permit and require submission of an application for an individual NPDES permit, as detailed in Part 1.6. In these instances, the Department will notify you in writing of the delay, of the need for additional effluent limits, or of the request for submission of an individual NPDES permit application.

d. Contents of the NOI.

Provide information as follows and as requested in the form provided by the Department:

i. Name and address of the entity (owner or operator) applying for permit coverage;

ii. Name and location of the facility and a U.S.G.S. 7-1/2 minute quadrant map (or 8 1/2" x 11" section of such map or copy) with the site location marked;

iii. Contact information for the SWPPP;

iv. Whether the facility is a Federal facility;

v. Whether the facility is on Indian land;

vi. Description of receiving waters (each stream, if more than one);

vii. The name of any municipal separate storm sewer system (MS4) which receives the storm water discharge;

viii. The Standard Industrial Classification code and the permit sector (see Appendix

D of this permit) of the facility. Also reference the following US Department of Labor site: https://www.osha.gov/pls/imis/sic_manual.html

ix. Signature per S.C. R.61-9.122.22(a) certifying:

a. That the applicant is requesting coverage under the IGP, SCR000000;

b. That a SWPPP in accordance with Part 3 of this permit has been prepared and implemented for the facility, signed, and dated by an authorized representative as defined in Appendix B, R.61-9.122.22 and 122.41(k).

Also, provide the name and address of the person signing the NOI;

c. That the NOI was properly completed.

d. The signature on the submitted NOI must be original.

x. The following must also be submitted with the NOI form for the NOI application to be complete: The fee for coverage under this IGP, a check made payable to S.C. DHEC Bureau of Finance or credit card payment. S.C. R.61-30, Environmental Protection Fees, governs this fee. This fee consists of the first year’s fee for an annual fee, the cycle of which is July 1 of each year through June 30 of the following year.

xi. Any other information the Department requires on the NOI form.

This form is available on our website at: http://www.scdhec.gov/stormwater

1.3.2 Continuation of this Permit.

If this permit is not reissued or replaced prior to the expiration date, it will be administratively continued in accordance with S.C. R.61-9.122.6 and remain in force and effect. If you were authorized to discharge under this permit, any discharges authorized under this permit will automatically remain covered by this permit until the earliest of:

a. Your authorization for coverage under a reissued permit or a replacement of this permit at which time compliance with the conditions and requirements of the new permit must be met. A timely and appropriate submittal of a complete NOI requesting authorization to discharge under the new permit and compliance with the requirements of the new permit may be requested by the Department; or

b. Your submittal of a Notice of Termination; or

c. Issuance or denial of an individual permit for the facility’s discharges; or

d. A formal permit decision by EPA not to reissue this general permit, at which time

EPA will identify a reasonable time period for covered dischargers to seek coverage under an alternative general permit or an individual permit. Coverage under this permit will cease at the end of this time period.

The Department reserves the right to modify or revoke and reissue this permit under SC R.61-9.122.62 and 63, in which case you will be notified of any relevant changes or procedures to which you may be subject.

1.4 Terminating Coverage.

1.4.1 Submitting a Notice of Termination.

To terminate permit coverage, you must submit a complete and accurate Notice of Termination (NOT) using the NOT form provided by the Department to the address listed in Part 7.6. Your authorization to discharge under this permit terminates at midnight of the day that a complete NOT is received by the Department. If you submit a NOT without meeting one or more of the conditions identified in Part 1.4.2, then your NOT is not valid. You are responsible for meeting the terms of this permit until your authorization is terminated.

1.4.2 When to Submit a Notice of Termination.

You must submit a NOT within 30 days after one or more of the following conditions have been met:

a. A new owner or operator has taken over responsibility for the facility;

b. You have ceased operations at the facility, there are not or no longer will be discharges of storm water associated with industrial activity from the facility, and you have already implemented necessary sediment and erosion controls as required by Part 2.1.2.5;

c. You are a Sector G facility and you have met the applicable termination requirements stated in Part 8.G; or

d. You have obtained coverage under an individual or alternative general permit for all discharges required to be covered by an NPDES permit, unless the Department has required that you obtain such coverage under authority of Part 1.6.1, in which case coverage under this permit will terminate automatically.

1.4.3 Information to Be Included in the Notice of Termination.

Provide information as follows and as requested in the form provided by the Department for this permit:

a. Name and address of the entity holding permit coverage to be terminated.

b. Name and location of the facility.

c. Certification number of coverage under the permit.

d. Signature per S.C. R.61-9.122.22(a) certifying proper closure. Also, provide the typed or printed name, position, and address of the person signing the NOT.

e. Any other information the Department requires on the NOI form.

1.5 Conditional Exclusion for No Exposure.

a. If you are covered by this permit, and become eligible for a no-exposure exclusion from permitting under S.C. R.61-9.122.26(g), you may file a No Exposure Certification. You are no longer required to have a permit upon submission and approval by the Department of a complete and accurate no-exposure certification to the Department. The No Exposure Certification must be submitted with the fee stated on the S.C. DHEC application and in S.C. R.61-30.

If you are no longer required to have permit coverage because of a no-exposure exclusion and have submitted a No Exposure Certification form to the Department, you are not required to submit a NOT. You must submit a No Exposure Certification to the Department once every five years. Existing No Exposure Certifications remain valid until their five-year certification period has expired, at which time you may file for a new Certification. File your No Exposure Certification using the S.C. DHEC form, found at:

http://www.scdhec.gov/stormwater

b. There is a fee required by S.C. R. 61-30, Environmental Protection Fees, for submittal of the No-exposure Certification for each five-year period. The fee is presently $350 for each five-year period.

1.6 Alternative Permits.

1.6.1 The Department Requiring Coverage under an Alternative Permit.

The Department may require you to apply for and/or obtain authorization to discharge under either an individual NPDES permit or an alternative NPDES general permit in accordance with S.C. R.61-9.122.64 and 124.5. Any interested person may petition the Department to take action under this paragraph. If the Department requires you to apply for an individual NPDES permit, the Department will notify you in writing that a permit application is required. This notification will include a brief statement of the reasons for this decision and will provide application information. In addition, if you are an existing discharger authorized to discharge under this permit, the notice will set a deadline to file the permit application, and will include a statement that on the effective date of the individual NPDES permit, or the alternative general permit as it applies to you, coverage under this general permit will terminate. The Department may grant additional time to submit the application if you request it. If you are covered under this permit and fail to submit an individual NPDES permit application as required by the Department, then the applicability of this permit to you is terminated at the end of the day specified by the Department as the deadline for application submittal. The Department may take appropriate enforcement action for any unpermitted discharge.

1.6.2 Permittee Requesting Coverage under an Alternative Permit.

a. You may request to be excluded from coverage under this general permit by applying for an individual permit. In such a case, you must submit an individual permit application in accordance with the requirements of S.C. R.61- 9.122.26(c)(1)(ii), with reasons supporting the request, to the Department at the address listed in Part 7.6.1 of this permit. The request may be granted by issuance of an individual permit or authorization of coverage under an alternative general permit, if your reasons are adequate to support the request.

b. When an individual NPDES permit is issued to you or you are authorized to discharge under an alternative NPDES general permit, your authorization to discharge under this permit is terminated on the effective date of the individual permit or the date of authorization of coverage under the alternative general permit.

1.7 Severability.

Invalidation of a portion of this permit does not necessarily render the whole permit invalid. The Department’s intent is that the permit remain in effect to the extent possible; in the event that any part of this permit is invalidated, the Department will advise the regulated community as to the effect of such invalidation.

2. Control Measures and Effluent Limits.

In the technology-based limits included in Part 2.1 and in Part 8, the term “minimize” means reduce and/or eliminate to the extent achievable using control measures (including best management practices) that are technologically available and economically practicable and achievable in light of best industry practice.

2.1 Control Measures.

You must select, design, install, and implement control measures (including best management practices [BMP]) to address the selection and design considerations in Part 2.1.1, meet the non-numeric effluent limits in Part 2.1.2, and meet limits contained in applicable effluent limitations guidelines in Part 2.1.3. The selection, design, installation, and implementation of these control measures must be in accordance with good engineering practices and manufacturer’s specifications. Note that you may deviate from such manufacturer’s specifications where you provide justification for such deviation and include documentation of your rationale in the part of your SWPPP that describes your control measures, consistent with Part 5.1.4. If you find that your control measures are not achieving their intended effect of minimizing pollutant discharges, you must modify these control measures as expeditiously as practicable. Regulated storm water discharges from your facility include storm water run-on that commingles with storm water discharges associated with industrial activity at your facility.

2.1.1 Control Measure Selection and Design Considerations

You must consider the following when selecting and designing control measures:

a. preventing storm water from coming into contact with polluting materials is generally more effective and less costly than trying to remove pollutants from storm water;

b. using control measures in combination is more effective than using control measures in isolation for minimizing pollutants in your storm water discharge;

c. assessing the type and quantity of pollutants, including their potential to impact receiving water quality, is critical to designing effective control measures that will achieve the limits in this permit;

d. minimizing impervious areas at your facility and infiltrating runoff onsite (including bioretention cells, green roofs, and pervious pavement, among other approaches) can reduce runoff and improve groundwater recharge and stream base flows in local streams; although, care must be taken to avoid groundwater contamination;

e. attenuating flow using open, vegetated swales and natural depressions can reduce in-stream impacts of erosive flows;

f. conserving and/or restoring riparian buffers will help protect streams from storm water runoff and improve water quality; and

g. using treatment interceptors (e.g., swirl separators and sand filters) may be appropriate in some instances to minimize the discharge of pollutants.

2.1.2 Non-Numeric Technology-Based Effluent Limits (BPT/BAT/BCT).

2.1.2.1 Minimize Exposure. You must minimize the exposure of manufacturing, processing, and material storage areas (including loading and unloading, storage, disposal, cleaning, maintenance, and fueling operations) to rain, snow, snowmelt, and runoff by either locating these industrial materials and activities inside or protecting them with storm resistant coverings (although significant enlargement of impervious surface area is not recommended). In minimizing exposure, you should pay particular attention to the following:

a. use grading, berming, or curbing to prevent runoff of contaminated flows and divert run-on away from these areas;

b. locate materials, equipment, and activities so that leaks are contained in existing containment and diversion systems (confine the storage of leaky or leak-prone vehicles and equipment awaiting maintenance to protected areas);

c. clean up spills and leaks promptly using dry methods (e.g., absorbents) to prevent the discharge of pollutants;

d. use drip pans and absorbents under or around leaky vehicles and equipment or store indoors where feasible;

e. use spill/overflow protection equipment;

f. drain fluids from equipment and vehicles prior to on-site storage or disposal;

g. perform all cleaning operations indoors, under cover, or in bermed areas that prevent runoff and run-on and also that capture any overspray; and

h. ensure that all wash water drains to a proper collection system (i.e., not the storm water drainage system)

The discharge of vehicle and equipment wash water, including tank cleaning operations, is not authorized by this permit. These wastewaters must be covered under a separate NPDES permit, discharged to a sanitary sewer in accordance with applicable industrial pretreatment requirements, or disposed of otherwise in accordance with applicable law.

Note: Industrial materials do not need to be enclosed or covered if storm water runoff from affected areas will not be discharged to receiving waters or if discharges are authorized under another NPDES permit.

2.1.2.2 Good Housekeeping. You must keep clean all exposed areas that are potential sources of pollutants, using such measures as sweeping at regular intervals, keeping materials orderly and labeled, and storing materials in appropriate containers.

The lids of waste containers such as but not limited to dumpsters, trash cans, and roll off boxes, should be kept closed when not in use. For these types of waste containers that do not have lids and could leak, ensure that discharges have a control (e.g., secondary containment, treatment). This permit does not authorize dry weather discharges from these types of waste containers.

Facilities that handle pre-production plastic must implement best management practices to eliminate discharges of plastic in stormwater. Examples of plastic material required to be addressed as stormwater pollutants include plastic resin pellets, powders, flakes, additives, regrind, scrap, waste and recycling.

2.1.2.3 Maintenance. You must maintain all control measures that are used to achieve the effluent limits in this permit in effective operating condition, as well as all industrial equipment and systems, in order to minimize pollutant discharges. This includes:

a. Performing inspections and preventive maintenance of stormwater drainage, source controls, treatment systems, and plant equipment and systems that could fail and result in contamination of stormwater.

b. Diligently maintaining non-structural control measures (e.g., keep spill response supplies available, personnel appropriately trained).

c. Inspecting and maintaining baghouses at least quarterly to prevent the escape of dust from the system and immediately removing any accumulated dust at the base of the exterior baghouse.

d. Cleaning catch basins when the depth of debris reaches two-thirds (2/3) of the sump depth and keeping the debris surface at least six inches below the lowest outlet pipe.

If you find that your control measures are in need of routine maintenance, you must conduct the necessary maintenance immediately in order to minimize pollutant discharges.

If you find that your control measures need to be repaired or replaced, you must immediately take all reasonable steps to prevent or minimize the discharge of pollutants until the final repair or replacement is implemented, including cleaning up any contaminated surfaces so that the material will not be discharged during subsequent storm events. Final repairs/replacement of stormwater controls should be completed as soon as feasible but must be no later than the timeframe established in Part 3.3. If a control measure was never installed, was installed incorrectly or not in accordance with Parts 2 and/or 8, or is not being properly operated or maintained, you must conduct corrective action as specified in Part 3.

2.1.2.4 Spill Prevention and Response Procedures. You must minimize the potential for leaks, spills, and other releases that may be exposed to storm water and develop plans for effective response to such spills if or when they occur. At a minimum, you must implement:

a. Procedures for plainly labeling containers (e.g., “used oil,” “spent solvents,”

“fertilizers and pesticides,” etc.) that could be susceptible to spillage or leakage to encourage proper handling and facilitate rapid response if spills or leaks occur;

b. Preventative measures such as barriers between material storage and traffic areas, secondary containment provisions, and procedures for material storage and handling;

c. Procedures for expeditiously stopping, containing, and cleaning up leaks, spills, and other releases. Employees who may cause, detect, or respond to a spill or leak must be trained in these procedures and have necessary spill response equipment available. If possible, one of these individuals should be a member of your storm water pollution prevention team (see Part 5.1.1); and

d. Procedures for notification of appropriate facility personnel, emergency response agencies, and regulatory agencies. Where a leak, spill, or other release containing a hazardous substance or oil in an amount equal to or in excess of a reportable quantity established under either 40 CFR Part 110, 40 CFR Part 117, or 40 CFR

Part 302, occurs during a 24-hour period, you must notify the National Response Center (NRC) at (800) 424-8802 in accordance with the requirements of 40 CFR Part 110, 40 CFR Part 117, and 40 CFR Part 302 and the Department's Emergency Response Section at (803/253-6488 or 888-481-0125) as soon as you have knowledge of the discharge. State or local requirements may necessitate reporting spills or discharges to local emergency response, public health, or drinking water supply agencies. Contact information must be in locations that are readily accessible and available.

2.1.2.5 Erosion and Sediment Controls. You must stabilize exposed areas and manage runoff using structural and/or non-structural control measures to minimize onsite erosion and sedimentation and the resulting discharge of pollutants. Among other actions you must take to meet this limit, you must place flow velocity-dissipation devices at discharge locations and within outfall channels where necessary to reduce erosion and/or settle out pollutants. In selecting, designing, installing, and implementing appropriate control measures, you are encouraged to consult with U.S. EPA’s internet-based resources relating to BMP for erosion and sedimentation, including the sector-specific Industrial Stormwater

Fact Sheet Series, (https://www.epa.gov/npdes/stormwater-discharges-industrial-activities#factsheet) and Stormwater Discharges from Construction Activities (https://www.epa.gov/npdes/epas-2012-construction-general-permit-cgp-and-related-documents).

2.1.2.6 Management of Runoff. You must divert, infiltrate, reuse, contain, or otherwise reduce stormwater runoff to minimize pollutants in your discharges. In selecting, designing, installing, and implementing appropriate control measures, you are encouraged to consult with EPA’s Internet-based resources relating to runoff management, including the sector-specific Industrial Stormwater Fact Sheet

Series, (https://www.epa.gov/npdes/stormwater-discharges-industrial-activities#factsheet), National Menu of Stormwater BMPs, (https://www.epa.gov/npdes/national-menu-best-management-practices-bmps-stormwater), in particular the Post-Construction link on this page, and National

Management Measures to Control Nonpoint Source Pollution from Urban Areas

(http://water.epa.gov/polwaste/nps/urban/), and any similar state or tribal resources.

2.1.2.7 Salt Storage and Pavement Deicing.

a. Salt Storage Piles or Piles Containing Salt. You must enclose or cover storage piles of salt, or piles containing salt, used for deicing or other commercial or industrial purposes, including maintenance of paved surfaces. You must implement appropriate measures (e.g., good housekeeping, diversions, containment) to minimize exposure resulting from adding to or removing materials from the pile. Piles do not need to be enclosed or covered if storm water runoff from the piles is not discharged or if discharges from the piles are authorized under another NPDES permit.

b. Pavement Deicing Activities. For any pavement deicing activities at facilities, other than airports, covered under this permit, the SWPPP must include measures to assure that no SARA 313 chemicals are used for deicing and that no deicing occurs where spills or leaks of toxic or hazardous materials have occurred (unless all spilled material has been removed). Deicing is to be carried out only for safety purposes during inclement weather and must meet water quality standards in compliance with permit item 2.2, and meeting MS4 permit conditions (pertinent to the discharge).

2.1.2.8 Sector Specific Non-Numeric Effluent Limits. You must achieve any additional non-numeric limits stipulated in the relevant sector-specific section(s) of Part 8.

2.1.2.9 Employee Training. You must train all employees who work in areas where industrial materials or activities are exposed to stormwater, or who are responsible for implementing activities necessary to meet the conditions of this permit (e.g., inspectors, maintenance personnel), including all members of your stormwater pollution prevention team (see Part 5). You must ensure the following personnel understand the requirements of this permit and their specific responsibilities with respect to those requirements:

• Personnel who are responsible for the design, installation, maintenance, and/or repair of controls (including pollution prevention measures);

• Personnel responsible for the storage and handling of chemicals and materials that could become contaminants in stormwater discharges;

• Personnel who are responsible for conducting and documenting monitoring and inspections as required in Parts 3 and 6; and

• Personnel who are responsible for taking and documenting corrective actions as required in Part 3.

Personnel must be trained in at least the following if related to the scope of their job duties (e.g., only personnel responsible for conducting inspections need to understand how to conduct inspections):

• An overview of what is in the SWPPP;

• Spill response procedures, good housekeeping, maintenance requirements, and material management practices;

• The location of all controls on the site required by this permit, and how they are to be maintained;

• The proper procedures to follow with respect to the permit’s pollution prevention requirements; and

• When and how to conduct inspections, record applicable findings, and take corrective actions.

Training should be conducted at least annually (or more often if employee turnover is high) unless Sector-specific requirements dictate otherwise.

2.1.2.10 Non-Storm Water Discharges. You must eliminate non-storm water discharges not authorized by an NPDES permit. See Part 1.1.3 for a list of non-stormwater discharges authorized by this permit.

2.1.2.11 Waste, Garbage, and Floatable Debris. You must ensure that waste, garbage, and floatable debris are not discharged to receiving waters by keeping exposed areas free of such materials or by intercepting them before they are discharged.

2.1.2.12 Dust Generation and Vehicle Tracking of Industrial Materials. You must minimize generation of dust and off-site tracking of raw, final, or waste materials.

2.1.3 Numeric Effluent Limitations Based on Effluent Limitations Guidelines

If your discharges fall into one of the effluent limitations guidelines identified in Table 6- 1 (see Part 6.2.2.1), you must meet the effluent limits referenced in Table 2-1:

Table 2-1. Applicable Effluent Limitations Guidelines

Regulated Activity 40 CFR Part/Subpart Effluent Limit

Discharges resulting from spray down or intentional wetting of logs at wet deck storage areas

Part 429, Subpart I See Part 8.A.7

Runoff from phosphate fertilizer manufacturing facilities that comes into contact with any raw materials, finished product, by-products or waste products (SIC 2874)

Part 418, Subpart A See Part 8.C.4

Runoff from asphalt emulsion facilities Part 443, Subpart A See Part 8.D.4

Runoff from material storage piles at cement manufacturing facilities

Part 411, Subpart C See Part 8.E.5

[Reserved.] Part 436, Subparts B, C, or D [Reserved.]

Runoff from hazardous waste landfills Part 445, Subpart A See Part 8.K.6

Runoff from non-hazardous waste landfills Part 445, Subpart B See Part 8.L.10

Runoff from coal storage piles at steam electric generating facilities

Part 423 See Part 8.O.7

Runoff containing urea from airfield pavement deicing at existing and new primary airports with 1,000…