RNP-RA/03-0036, Submittal of Renewed National Pollutant Discharge Elimination System Permit No. SC0002925

Submittal of Renewed National Pollutant Discharge Elimination System Permit No. SC0002925

ML030860758
Person / Time
Site:	Robinson
Issue date:	03/25/2003
From:	Baucom C Progress Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RNP-RA/03-0036
Download: ML030860758 (54)

Text

LI Progress Energy Serial: RNP-RA/03-0036 MAR 2 5 Z003 United States Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 DOCKET NO. 50-261/LICENSE NO. DPR-23 SUBMITTAL OF RENEWED NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT NO. SC0002925 Ladies and Gentlemen:

By letter dated January 27, 1989, Carolina Power & Light Company (CP&L) committed to provide the NRC with copies of any changes to the National Pollutant Discharge Elimination System (NPDES) Permit No. SC0002925 for the H. B. Robinson Steam Electric Plant.

In accordance with that commitment, CP&L, now doing business as Progress Energy Carolinas, Inc., is providing as an attachment to this letter a copy of the renewed NPDES Permit from the South Carolina Department of Health and Environmental Control, which was effective as of March 1, 2003.

If you have any questions concerning this matter, please contact me at (843) 857-1253.

Sincerely, 6L) ) '6k44n-%

C. T. Baucom Supervisor - Licensing/Regulatory Programs JMG/jmg Attachment c: NRC Resident Inspector, HBRSEP L. A. Reyes, NRC, Region II C. Patel, NRC, NRR Progress Energy Carolinas, Inc.

• II) 3581 West Entrance Road Hartsville, SC 29550

United States Nuclear Regulatory Commission Attachment to Serial: RNP-RAI03-0036 53 pages including cover page H. B. ROBINSON STEAM ELECTRIC PLANT NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT NO. SC0002925

p D H E Q PROMOTE PROTECT PROSPER South Carolina Department of Health and Environmental Control NationalPollutantDischarge EliminationSystem Permit for Discharge to Surface Waters This Pemilt Certifies That CarolinaPower & Light Company H.B. Robinson Steam ElectricPlant has been granted permission to discharge from a facility located at Hartsville,South Carolina DarlingtonCounty to receiving waters named Lake Robinson andBlack Creek in accordance with effluent limitations, monitoring requirements and other conditions set forth in Parts I, II, I1I, IV, and V hereof. This permit is issued in accordance with the provisions ofthe Pollution Control Act of South Carolina (S.C. Code Sections 48-1 10 et seq., 1976), Regulation 61-9 and with the provisions of the Federal Clean Water Act (PL 92-500), as amended, 33 U.S.C. 1251 et seq., the "Act."

Marion F. Sadler, Jr., Director Industrial, Agricultural, and Storm Water Permitting Division Bureau of Water Issued: January16, 2003 Expires: June 30, 2006 Permit No.: SC0002925 LD Effective: March 1, 2003 jC

PART I Page 2 of 52 Permit No. SC0002925 Table of Contents PART I. Definitions PART II. Standard Conditions A. Duty to comply B. Duty to reapply C. Need to halt or reduce activity not a defense 1-D. Duty to mitigate E. Proper operation rznd mai;rn e2_"""

F. Permit actions G. Property rights H. Duty to provide information I. Inspection and entry J. Monitoring and records K. Signatory requirement L. Reporting requirements

1. Planned changes

2. Anticipated noncompliance

3. Transfers

4. Monitoring reports

5. Twenty-four hour reporting 6: Other noncompliance

7. Other information

8. Existing manufacturing, commercial, mining and silvicultural dischargers M. Bypass N. Upset

0. Misrepresentation of Information PART III. Limitations and Monitoring Requirements A. Effluent Limitations and Monitoring Requirements B. Effluent Toxicity Limitations and Monitoring Requirements C. Groundwater Monitoring Requirements PART IV. Schedule of Compliance PART V. Other Requirements A. Effluent Requirements B. Effluent Toxicity and Other Biological Monitoring Requirements C. Other Conditions

PART I Page 3 of 52 Permit No. SC0002925 PART I. Definitions in the Pollution Control Act or in "Water Pollution Any term not defined in this Part has the definition stated Control Permits", R.61-9 or its normal meaning.

(Formerly referred to as the Federal Water Pollution A. The "Act", or CWA, shall refer to the Clean Water Act Control Act) Public Law 92-500, as amended.

of the individual values divided by the number of B. The "arithmetic mean" of any set of values is the summation 11dividuai values.

streams from any portion of a treatment facility.

C. "Bypass" means the intentional diversion of waste the following four types:

D. A "composite sample" shall be defined as one of over a specified period of time at a rate proportional

1. An influent or effluent portion collected continuously to the flow.

(equal) intervals or effluent grab samples collected at regular

2. A combination of not less than 8 influent the volume of each aliquot in proportion to increasing over a specified period of time and composited by to composite in proportion to flow, the following flow. If continuous flow measurement is not used should be taken each time a grab sample is method will be used: An instantaneous flow measurement to At the end of the sampling period, the instantaneous flow measurements should be summed collected. can then be divided by the total flow to obtain a total flow. "The instantaneous flow measurement the to be combined. These combined samples form determine the percentage of each grab sample composite sample.

of not less than 8 influent or effluent grab samples of equal volume but at variable time

3. A combination of the flow. In other words, the time interval intervals that are inversely proportional to the volume increases.

between aliquots is reduced as the volume of flow a combination of not less than 8 influent or effluent

4. If the effluent flow varies by less than 15 percent, period samples of constant (equal) volume collected at regular (equal) time intervals over a specified grab of time.

shall be properly preserved in accordance with Part II.J.4. Continuous flow or the sum of All samples with specified compositing time period shall be used instantaneous flows measured and averaged for the composite results to calculate mass.

during the recorded of samples collected on any single day E. "Daily maximum" is the highest average value calendar month.

the is the lowest average value recorded of samples collected on any single day during F. "Daily minimum" calendar month.

Department of Health and Environmental Control.

G. The "Department" shall refer to the South Carolina

PART I Page 4 of 52 Permit No. SC0002925 values where N is H. The "geometric mean" of any set of values is the Nth root of the product of the individual the antilog of the arithmetic equal to the number of individual values. The geometric mean is equivalent to the geometric mean, values of mean of the logarithms of the individual values. For purposes of calculating zero (0) shall be considered to be one (1).

effluent portion of at least 100 milliliters I. A "grab sample" is an individual, discrete or single influent or not exceeding 15 minutes and retained collected at a time representative of the discharge and over a period sample collection shall be used to separately for analysis. Instantaneous flow measured at the time of grab calculate quantity, unless a totalizer is used.

value recorded of all samples collected

.j. The "instantaneous maximum-or minirmum" is th, h;ghest or lowest during the calendar month.

mean of all samples collected in a K. The "monthly average", other than for fecal coliform, is the arithmetic is the geometric mean of all samples calendar month period. The monthly average for fecal coliform bacteria arithmetic average of all individual collected in a calendar month period. The monthly average loading is the loading determinations made during the month.

the entire analytical system must give a L. The "practical quantitation limit (PQL)" is the concentration at which in a sample that is equivalent to recognizable signal and acceptable calibration point. It is the concentration analytical procedure, assuming that the concentration of the lowest calibration standard analyzed by a specific have been followed.

all the method-specific sample weights, volumes, and processing steps of the months of January, February and

-M. A "quarter" is defined as follows: the first (Ist) quarter will consist third (3rd) quarter will consist of July, March, the second (2nd) quarter will consist of April, May and June, the November and December.

August and September, and the fourth (4th) will consist of October, in a quarter.

N. "Quarterly average" is the arithmetic mean of all samples collected damage to the treatment facilities

0. "Severe property damage" means substantial physical damage to property, loss of natural resources which can which causes them to become inoperable, or substantial and permanent damage does not mean economic reasonably be expected to occur in the absence of a bypass. Severe property loss caused by delays in production.

and temporary noncompliance with P. "Upset" means an exceptional incident in which there is unintentional the reasonable control of the permittee.

technology based permit effluent limitations because of factors beyond error, improperly designed An upset does not include noncompliance to the extent caused by operational maintenance, or careless or improper treatment facilities, inadequate treatment facilities, lack of preventive operation.

mean of all the samples collected during a Q. "Weekly average", other than for fecal coliform, is the arithmetic mean of all samples collected one-week period. The weekly average for fecal coliform is the geometric periods in a calendar month are defined as during a one-week period. For self-monitoring purposes, weekly the calendar month and a fourth interval three (3) consecutive seven-day intervals starting with the first day of month. The value to be reported containing seven (7) days plus those days beyond the 28th day in a calendar during a calendar month. The weekly average is the single highest of the four (4) weekly averages computed made during the week.

loading is the arithmetic average of all individual loading determinations

r1" \'

I1 I I Page 5 of 52 Permit No. SC0002925 PART II. Standard Conditions A. Duty to Comply Any permit noncompliance constitutes a The permittee must comply with all conditions of the permit.

and is grounds for enforcement action; for violation of the Clean Water Act and the Pollution Control Act or denial of a permit renewal application.

permit termination, revocation and reissuance, or modification; established under section 307(a) of

1. a. The permittee shall comply with effluent standards or prohibitions sewage sludge use or disposal the Clean Water Act for toxic pollutants and with standards for iii the regulaticas that establish established under section 405(d) of the CWAwithin the timn provided use or disposal, even if the permit has these standards or prohibitions or standards for sewage sludge not yet been modified to incorporate the requirement.

facility that will meet the final effluent

b. It is the responsibility of the permittee to have a treatment by the Department does not relieve limitations of this permit. The approval of plans and specifications the permittee of responsibility for compliance.

of this permit may subject the permittee to civil

2. Failure to comply with permit conditions or the provisions under S.C. Code Section 48-1-320.

penalties under S.C. Code Section 48-1-330 or criminal sanctions be imposed in accordance with the provisions Sanctions for violations of the Federal Clean Water Act may of 40 CFR Part 122.41(a)(2) and (3).

a term, condition or schedule of compliance contained

-3. A person who violates any provision of this permit, defined in the State law.

within this NPDES permit, or the State law is subject to the actions B. Duty to Reapply permit after the expiration date of this permit, If the permittee wishes to continue an activity regulated by this with a currently effective permit shall the permittee must apply for and obtain a new permit. A permittee unless permission for a later date has submit a new application 180 days before the existing permit expires, permission for applications to be submitted been granted by the Department. The Department may not grant later than the expiration date of the existing permit.

C. Need to Halt or Reduce Activity Not a Defense that it would have been necessary to halt or It shall not be a defense for a permittee in an enforcement action with the conditions of this permit.

reduce the permitted activity in order to maintain compliance D. Duty to Mitigate prevent any discharge or sludge use or disposal in The permittee shall take all reasonable steps to minimize or of adversely affecting human health or the violation of this permit which has a reasonable likelihood environment.

PART II Page 6 of 52 Permit No. SC0002925 E. Proper Operation and Maintenance maintain in good working order and operate as

1. The permittee shall at all times properly operate and control (and related appurtenances) which efficiently as possible all facilities and systems of treatment and with the terms and conditions of this permit.

are installed or used by the permittee to achieve compliance based on design facility removals, Proper operation and maintenance includes effective performance and also includes adequate laboratory controls adequate funding, adequate operator staffing and training provision requires the operation of back-up or and appropriate quality assurance procedures. This by a permittee only when the operation is auxiliary facilities or similar systems which are installed of the permit.

necessary to achieve compliance with the conditions permit, with effluent limitations and prohibitions of this

2. Power Failures. In order to maintain compliance the permittee shall either:

operate the wastewater control facilities;

a. provide an alternative power source sufficient to or otherwise control production and/or all

b. or have a plan of operation which will halt, reduce, source of power to the wastewater discharges upon the reduction, loss, or failure of the primary control facilities.

a complete Operations and Maintenance Manual for

3. The permittee shall maintain at the permitted facility for on-site review during normal working the wasteC teatmcr-- plant. The manual shall be made available instructions for all equipment and hours. The manual shall contain operation and maintenance and land application system. The manual shall appurtenances associated with the waste treatment plant operating characteristics that will produce contain a general description of the treatment process(es),

to be taken should operating difficulties be maximum treatment efficiency and corrective action encountered. ,

routine treatment piant inspections by a certified

4. The permittee shall provide for the performance of The inspection shall include, but is not limited operator of the appropriate grade as specified in Part V.

efficient operations and for which immediate to, areas which require a visual observation to determine as a guide. All inspections shall be recorded corrective measures can be taken using the 0 & M manual the inspection, corrective measures taken, and shall include-the date, time and name of the person making performed. The permittee shall maintain all and routine equipment maintenance, repair, or replacement by this permit. Records shall be made available records of inspections at the permitted facility as required hours.

for on-site review during normal working be submitted to DHEC/Bureau of Water/Water

5. The name and grade of the operator of record shall operation. A roster of operators associated with the Enforcement Division prior to placing the facility into also be submitted with the name of the uoperator-in facility's operation and their certification grades shall be submitted to the Department as they occur.

charge". Any changes in operator or operators shall

- tAKI II Page 7 of 52 Permit No. SC0002925 F. Permit Actions filing of a request by the This permit may be modified, revoked and reissued, or terminated for cause. The or a notification of planned permittee for a permit modification, revocation and reissuance, or termination, changes or anticipated noncompliance does not stay any permit condition.

G. Property Rights privilege nor does it authorize This Dermit does niot convey any property rights of any sort, or any exclusive or any infringemen,: U!OLe or local liw any injury to persons or property or invasion of other private rights, or regulations.

H. Duty to Provide Information time, any information which the The permittee shall furnish to the Department, within a reasonable revoking and reissuing, or Department may request to determine whether cause exists for modifying, permittee shall also furnish to the terminating this permit or to determine compliance with this permit. The permit.

Department upon request, copies of records required to be kept by this

/I. Inspection and Entry (including an authorized contractor The permittee shall allow the Department, or an authorized representative and other documents as may be acting as a representative of the Department), upon presentation of credentials required by law, to:

activity is located or conducted, or

1. Enter upon the permittee's premises where a regulated facility or where records must be kept under the conditions of this permit; be kept under the conditions of this

2. Have access to and copy, at reasonable times, any records that must permit; monitoring and control equipment),

3. Inspect at reasonable times any facilities, equipment (including and practices, or operations regulated or required under this permit; permit compliance or as otherwise

4. Sample or monitor at reasonable times, for the purposes of assuring substances or parameters at any authorized by the Clean Water Act and Pollution Control Act, any location.

J. Monitoring and Records of monitoring shall be representative of the

1. a. Samples and measurements taken for the purpose monitored activity.

PART 11 Page 8 of 52 Permit No. SC0002925

b. Flow Measurements flow measurement devices and methods consistent with accepted scientific practices shall Appropriate monitored reliability of measurements of the volume of be present and used to ensure the accuracy and and maintained to ensure that the accuracy of the discharges. The devices shall be installed, calibrated shall capability of that type of device. Devices selected measurements are consistent with the accepted deviation of less than +/- 10% from the true discharge be capable of measuring flows with a maximum volumes.

rates throughout the range of expected discharge the facility a record of the method(s) used in measuring

c. The permittee shall maintain at the permit.ted necessary limits pages to mornitnr flow. Records of any discharge flow for the outfall(s) designated on review by shall be made available for on-site calibrations must also be kept. This information hours.

Department personnel during normal working sewage required by this permit related to the permittee's

2. Except for records of monitoring information (5) (or longer use and disposal activities, which shall be retained for a period of at least five years sludge monitoring the permittee shall retain records of all as required by R.61-9.503 or R.61-9.504), for including all calibration and maintenance records and all original strip chart recordings information, of all of all reports required by this permit, and records continuous monitoring instrumentation, copies from the date permit, for a period of at least three (3) years data used to complete the application for this the measurement, report or application. This period may be extended by request of of the sample, Department at any time.

include:

3. P:_-ord-- -f monitoring information shall or measurements;

a. The date, exact place, and time of sampling sampling or measurements;

b. The individual(s) who performed the

c. The date(s) analyses were performed; analyses;

d. The individual(s) who performed the used; and

e. The analytical techniques or methods

f. The results of such analyses.

40 results for wastewater must be conducted according to test procedures approved under

4. a. Monitoring 136 unless or disposal, approved under 40 CFR Part CFR Part 136 or, in the case of sludge use in unless other test procedures have been specified otherwise specified in R.61-9.503 or R.61-9.504, the permit.

analytical the permittee shall use a sufficiently sensitive

b. Unless addressed elsewhere in this permit, than one method that achieves a value below the derived permit limit stated in Part III. If more method recommends for reasonable potential determinations of analysis is approved for use, the Department unless otherwise the lowest practical quantitation limit (PQL) that the permittee use the method having Discharge in Part V of the permit. For the purposes of reporting analytical data on the specified Monitoring Report (DMR):

PART 11 Page 9 of 52 Permit No. SC0002925 40 CFR 136 or otherwise specified in (1) Analytical results below the PQL from methods available in used to average results which are the permit shall be reported as zero (0). Zero (0) shall also be the permittee shall report, below the PQL. When zero (0) is reported or used to average results, the analytical method used, the PQL in the "Comment Section" or in an attachment to the DMR, reported as zero (0).

achieved, and the number of times results below the PQL were in 40 CFR 136 or otherwise specified in (2) Analytical results above the PQL from methods available results using a value containing the permit shall be reported as the value achieved. When averaging and reported as "less than" the average s "less than", the average shall be calculated using the value of all results collected.

at the time of the sample and either the (3) Mass values shall be calculated using the flow taken from the procedures in (1) or (2) concentration value actually achieved or the value as determined above, as appropriate.

falsifies, tampers with, or knowingly renders

5. The Clean Water Act provides that any person who be maintained under this permit shall, upon inaccurate any monitoring device or method required to or by imprisonment for not more than 2 years, conviction, be punished by a fine of not more than $10,000 after a first conviction of such person or both. If a conviction of a person is for a violation committed than $20,000 per day of violation, or by under this paragraph, punishment is a fine of not more imprisonment of not more than 4 years, or both.

K. Signatory Requirement Department shall be signed and certified.

1. All applications, reports, or information submitted to the as follows:

a. Applications. All permit applications shall be signed For the purpose of this section, a (1) For a corporation: by a responsible corporate officer.

responsible corporate officer means:

corporation in charge of a principal (a) A president, secretary, treasurer, or vice-president of the policy or decision-making business function, or any other person who performs similar functions for the corporation, or or operating facilities employing (b) The manager of one or more manufacturing, production, exceeding $25 million (in more than 250 persons or having gross annual sales or expenditures assigned or delegated to second-quarter 1980 dollars), if authority to sign documents has been the manager in accordance with corporate procedures.

or the proprietor, respectively; or (2) For a partnership or sole proprietorship: by a general partner

PART 1I Page 10 of 52 Permit No. SC0002925 agency or public facility: By either a principal (3) For a municipality, State, Federal, or other public or ranking elected official. For executive officer, mayor, or other duly authorized employee of a Federal agency includes:

purposes of this section, a principal executive officer or (a) The chief executive officer of the agency, for the overall operations of a principal (b) A senior executive officer having responsibility Administrator, Region IV, EPA).

geographic unit of the agency (e.g., Regional requested by the Department, shafl be signed SA.Z.P:Crts required by permits, and other information or by a duly authorized representative of that by a person described in Part II.K.l.a of this section, if:

person. A person is a duly authorized representative described in Part II.K. L.a of this section; (1) The authorization is made in writing by a person or a position having responsibility for the overall (2) The authorization specifies either an individual the position of plant manager, operator of a operation of the regulated facility or activity such as equivalent responsibility, or an individual or well or a well field, superintendent, position of matters for the company. (A duly position having overall responsibility for environmental individual or any individual occupying a authorized representative may thus be either a named named position.) and, to the Department.

- (3) The writtcii authorization is submitted under Part II.K. 1.b of this section is no longer accurate

c. Changes to Authorization. If an authorization for the overall operation of the facility, a because a different individual or position has responsibility the Part II.K. 1.b of this section must be submitted to new authorization satisfying the requirements of by an information, or applications to be signed Department prior to or together with any reports, authorized representative.

the under Part II.K. L.a or b of this section shall make

d. Certification. Any person signing a document that this document and all attachments were following certification: "I certify under penalty of law that in accordance with a system designed to assure prepared under my direction or supervision of the information submitted. Based on my inquiry qualified personnel properly gather and evaluate the those persons directly responsible for gathering the person or persons who manage the system, or and best of my knowledge and belief, true, accurate, information, the information submitted is, to the for submitting false information, including complete. I am aware that there are significant penalties knowing violations."

the possibility of fine and imprisonment for or knowingly makes any false statement, representation,

2. The CWA provides that any person who permit, or required to be maintained under this certification in any record or other document submitted or non-compliance shall, upon conviction, be including monitoring reports or reports of compliance 6 by a fine of not more than $10,000 per violation, or by imprisonment for not more than punished months per violation, or by both.

PAR'i 11 Page II of 52 Permit No. SC0002925 L. Reporting Requirements notice to DHEC/Bureau of Water/Industrial,

1. Planned Changes. The permittee shall give written as possible of any planned physical alterations Agricultural and Storm Water Permitting Division as soon only when:

or additions to the permitted facility. Notice is required meet one of the criteria for determining whether

a. The alteration or addition to a permitted facility may a facility is a new source in R 61-9.122.29(b); or the nature or increase the quantity of pollutants

b. The Pireratiaa.or addition could significantly change which are subject neither to effluent limitations in discharged. This notification applies to pollutants II.L.8 of this section.

the permit, nor to notification requirements under Part in the permittee's sewage sludge or industrial

c. The alteration or addition results in a significant change addition, or change may justify the application of sludge use or disposal practices, and such alteration, the existing permit, including notification of permit conditions that are different from or absent in the permit application process or not reported additional use or disposal sites not reported during in the NPDES permit directly or by pursuant to an approved land application plan (included reference);

of Anticipated Noncompliance. The permittee shall give advance notice to the DHEC/Bureau 2.

changes in the permitted facility or activity which may Water/Water Enforcement Division of any planned result in noncompliance with permit reqvirements.

except after written notice to the DHEC/Bureau

3. Transfers. This permit is not transferable to any person modification or revocation and reissuance of Water/NPDES Administration. The Department may require such other requirements as may be of the permit to change the name of permittee and incorporateAct.

Water necessary under the Pollution Control Act and the Clean paragraph b of this section, a permit may be

a. Transfers by Modification. Except as provided in only if the permit has been modified or transferred by the permittee to a new owner or operator a minor modification made (under R.61 revoked and reissued (under R.61-9.122.62 (e)(2)), or such other requirements as may be 9.122.63 (d)), to identify the new permittee and incorporate necessary under CWA.

paragraph a of this section, any NPDES permit

b. Other Transfers. As an alternative to transfers under may be transferred to a new permittee if:

30 days in advance of the proposed transfer (1) The current permittee notifies the Department at least date in Part II.L.3.b(2) of this section; Form 1 and a written agreement between the (2) The notice includes U.S. EPA NPDES Application date for transfer of permit responsibility, existing and new permittees containing a specific coverage, and liability between them; and under prior consent of the Department. A modification (3) Permits are non-transferable except with public notice.

this section is a minor modification which does not require

PART II Page 12 of 52 Permit No. SC0002925 intervals specified elsewhere in this permit.

4. Monitoring Reports. Monitoring results shall be reported at the Report (DMR) or forms provided or

a. Monitoring results must be reported on a Discharge Monitoring of sludge use or disposal practices specified by the Department for reporting results of monitoring including the following:

the required frequency shall be reported (1) Effluent Monitoring: Effluent monitoring results obtained at DMR is due postmarked no later on a Discharge Monitoring Report Form (EPA Form 3320-1). The period. One original and one copy than the 28th day of the month following the end of the monitoring

,f the. Discharge Monitoring Reports (DMRs) shall be submitted to:

S.C. Department of Health and Environmental Control Bureau of Water/Compliance Assurance Division Permit and Data Administration Section 2600 Bull Street Columbia, South Carolina 29201 shall be submitted semiannually on a (2) Groundwater Monitoring: Groundwater monitoring results or utilizing a laboratory format, and Groundwater Monitoring Report Form (DHEC 2110),

after the permit becomes effective and postmarked no later than the 28th of the month six (6) months Monitoring Report Form alternating six (6) months. One original and one copy of the Groundwater (DHEC 2110) shall be submitted to:

S.C. Department of Health and Envirownental Control Division Bureau of Water/Water Monitoring, Assessment and Protection Groundwater Quality Section 2600 Bull Street Columbia, South Carolina 29201 and/or soil monitoring results obtained at (3) Sludge, Biosolids and/or Soil Monitoring: Sludge, biosolids no later than the 28th day the required frequency shall be reported in a laboratory format postmarked Two copies of these results shall be of the month following the end of the monitoring period.

submitted to:

S.C. Department of Health and Environmental Control Bureau of Water/Water Enforcement Division Water Pollution Enforcement Section 2600 Bull Street Columbia, South Carolina 29201 the frequency specified elsewhere in the (4) All other reports required by this permit shall be submitted at permit to:

S.C. Department of Health and Environmental Control Bureau of Water/Water Enforcement Division Water Pollution Enforcement Section 2600 Bull Street Columbia, South Carolina 29201

PAKi 11 Page 13 of 52 Permit No. SC0002925 required by the permit using test

b. If the permittee monitors any pollutant more frequently than of sludge use or disposal, approved under procedures approved under 40 CFR Part 136 or, in the case or R.61-9.504, or as specified in the 40 CFR Part 136 unless otherwise specified in R.61-9.503 in the calculation and reporting of the data permit, all valid results of this monitoring shall be included by the Department. In addition, results from submitted in the DMR or sludge reporting form specified has sole responsibility for scheduling all invalid results must be appended to DMRs. The permittee Part V, so as to ensure there is sufficient analyses, other than for the sample data specified in of valid results for each monitoring period.

opportunity to complete and report the required number of measurements shall utilize an arithmetic

c. Calculations for all limitations which require averaging the permit.

mean unless otherwise specified by the Department in

5. Twenty-Four Hour Reporting may endanger health or the environment. Any

a. The permittee shall report any non-compliance, which within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> from the time the permittee information shall be provided orally to local DHEC office working hours call:

becomes aware of the circumstances. During normal Phone No.

.. ii ti, EQC District I.... UuLJ Appalachia I 864-260-5569 Anderson, Oconee Appalachia II 864-241-1090 Greenville, Pickens Appalachia III 864-596-3800 Spartanburg, Cherokee, Union Catawba 803-285-7461 Lancaster, Chester, York Central Midlands 803-896-0620 Richland, Lexington, Newberry, Fairfield Low Country 843-846-1030 Beaufort, Jasper, Colleton, Hampton Lower Savannah 803-641-7670 Aiken, Orangeburg, Barnwell, Bamberg, Allendale, Calhoun Florence, Dillon, Marion, Marlboro, Pee Dee 843-661-4825 Darlington, Chesterfield Trident 843-740-1590 Charleston, Berkeley, Dorchester Greenwood, Abbeville, Laurens, Upper Savannah 864-223-0333 Saluda, Edgefield, McCormick

.1. *1*

843-448-1902 Horry, Georgetown, Williamsburg Waccamaw 843-448-1902 I

Sumter, Kershaw, Lee, Clarendon Wateree 803-778-1531 Response telephone number 803-253 After-hour reporting should be made to the 24-Hour Emergency A written submission shall also be provided within 6488 or 1-888-481-0125 outside of the Columbia area.

PART II Page 14 of 52 Permit No. SC0002925 to the address in Part II.L.4.a(4).

5 days of the time the permittee becomes aware of the circumstances the noncompliance and its cause; the period of The written submission shall contain a description of noncompliance has not been corrected, the noncompliance, including exact dates and times, and if the or planned to reduce, eliminate, and prevent anticipated time it is expected to continue; and steps taken reoccurrence of the noncompliance.

which must be reported within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> under this

b. The following shall be included as information, paragraph.

limitation in the permit. (See R.ol-9.122.44 (1) Any unanticipated bypass; which exceeds any effluent (g)).

in the permit.

(2) Any upset which exceeds any effluent limitation for any of the pollutants listed by the Department in (3) Violation of a maximum daily discharge limitation If the permit contains maximum the permit to be reported within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> (See R 61-9.122.44(g)). maximum limitations shall be violation of the limitations for any of the pollutants listed below, a Division within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> from the reported orally to the DHEC/Bureau of Water/Water Enforcement time the permittee becomes aware of the circumstances.

(a) Whole Effluent Toxicity (WET),

(b) Fecal coliform, (c) Tributyl tin (TBT), and (d) Any of the following bioaccumulative pollutants:

d BHC Lindane i BHC Mercury C M irex BHC Octachlorostyrene Chlordane PCBs DDD Pentachlorobenzene DDE Photomirex DDT 1,2,3,4-Tetrachlorobenzene Dieldrin 1,2,4,5-Tetrachlorobenzene Hexachlorobenzene 2,3,7,8-TCDD Hexachlorobutadiene Toxaphene a case-by-case basis for reports under Part II.L.5.b of

c. The Department may waive the written report on 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

this section if the oral report has been received within Part all instances of noncompliance not reported under

6. Other Noncompliance. The permittee shall report moniioring reports are submitted. The reports shall II.L.4 and 5 of this section and Part IV at the time of this section.

contain the information listed in Part II.L.5 aware that it failed to submit any relevant facts in a permit

7. Other Information. Where the permittee becomes application or in any report to the Department, it application, or submitted incorrect information in a permit permitting to the Industrial, Agricultural and Storm Water shall promptly submit such facts or information

FARI II Page 15 of 52 Permit No. SC0002925 in modification, revocation and reissuance, or termination Division. This information may result in permit accordance with Regulation 6 1-9.

Silvicultural Dischargers

8. Existing Manufacturing, Commercial, Mining, and section, all existing manufacturing, In addition to the reporting requirements under Part II.L. 1 of this notify the DHEC/Bureau of Water/Water commercial, mining, and silvicultural dischargers must know or have reason to believe:

Enforcement Division of the Department as soon as they would result in the discharge on a routine or

a. That any activity has occurred or will occur which the permit, if that discharge will exceed frequent basis, of any toxic pollutant which is not limited in the highest of the following "notification levels":

(1) One hundred micrograms per liter (100 pg/I);

acrolein and acrylonitrile; five hundred (2) Two hundred micrograms per liter (200 kzg/l) for 2-methyl-4, 6-dinitrophenol; and one micrograms per liter (500 pg/1) for 2,4-dinitrophenol and for milligram per liter (1 mg/I) for antimony; (5) times the maximum concentration value reported for that pollutant in the permit (3) Five application; or with section R.61-9.122.44 (f).

(4) The level established by the Department in accordance result in any discharge, on a non-routine or

b. That any activity has occurred or will occur which would the permit, if that discharge will exceed in infrequent basis, of a toxic pollutant which is not limited in the highest of the following "notification levels":

(1) Five hundred micrograms per liter (500 pg/l);

(2) One milligram per liter (I mg/1) for antimony; for that pollutant in the permit (3) Ten (10) times the maximum concentration value reported application in accordance with R.61-9.122.21 (g)(7).

with section R.61-9.122.44 (f).

(4) The level established by the Department in accordance M. Bypass may allow any bypass to occur which does not cause

1. Bypass Not Exceeding Limitations. The permittee is for essential maintenance to assure efficient effluent limitations to be exceeded but only if it also of Part II.M.2 and 3 of this section.

operation. These bypasses are not subject to the provisions

2. Notice prior Anticipated Bypass. If the permittee knows in advance of the need for a bypass, it shall submit a.

date of the bypass to the DHEC/Bureau of Water/

notice, if possible, at least ten days before the Division.

Industrial, Agricultural and Storm Water Permitting

PART II Page 16 of 52 Permit No. SC0002925 notice of an unanticipated bypass as required in Part

b. Unanticipated Bypass. The permittee shall submit I.L.5 of this section.

3. Prohibition of Bypass against a permittee for bypass,

a. Bypass is prohibited, and the Department may take enforcement action unless:

or severe property damage; (1) Bypass was unavoidable to pievent loss of life, personal injury, of auxiliary treatment facilities, (2) There were no feasible alternatives to the bypass, such as the use downtime. This retention of untreated wastes, or maintenance during normal periods of equipment installed in the exercise condition is not satisfied if adequate back-up equipment should have been during normal periods of of reasonable engineering judgment to prevent a bypass which occurred equipment downtime or preventive maintenance; and of this section.

(3) The permittee submitted notices as required under Part II.M.2 its adverse effects, if the

b. The Department may approve an anticipated bypass, after considering in Part II.M.3.a of this Department determines that it will meet the three conditions listed above section.

N. Upset action brought for noncompliance

1. Effect of an Upset. An upset constitutes an affirmative defense to an of Part ll.N.2 of this section are with such technology based permit effluent limitations if the requirements that noncompliance was caused by met. No determination made during administrative review of claims action subject to judicial review.

upset, and before an action for noncompliance, is final administrative who wishes to establish the affirmative

2. Conditions Necessary for a Demonstration of Upset. A permittee operating logs, or other defense of upset shall demonstrate, through properly signed, contemporaneous relevant evidence that:

cause(s) of the upset;

a. An upset occurred and that the permittee can identify the operated; and

b. The permitted facility was at the time being properly of this section.

c. The permittee submitted notice of the upset as required in Part II.L.5.b(2)

Part II.D of this section.

d. The permittee complied with any remedial measures required under to establish the occurrence of an

3. Burden of Proof. In any enforcement proceeding, the permittee seeking upset has the burden of proof.

PART II Page 17 of 52 Permit No. SC0002925

0. Misrepresentation of Information permit or filing any record, report, or other

1. Any person making application for a NPDES discharge certify that all information contained in such document pursuant to a regulation of the Department, shall applicant shall be considered valid conditions of document is true. All application facts certified to by the the permit issued pursuant to the application.

or certification in any application,

2. - Any person ;h;6knowingly makes any false statement, representation, to the State law, and the rules and pursuant record, report, or other documents filed with the Department violated a permit condition and shall be subject regulations pursuant to that law, shall be deemed to have or 48-1-330.

to the penalties provided for pursuant to 48-1-320

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS permittee is authorized

1. During the period beginning on the effective date of this permit and lasting through expiration date, the to discharge from outfall(s) serial number(s) 001: once through cooling water, and wastewaters regulated at internal Outfalls 002, 003, 005, 006, 007, 008, 009, 013, and 014 to Lake Robinson.

Such discharge shall be limited and monitored by the Permittee as specified below:

DISCHARGE LIMITATIONS MONITORING REQUIREMENTS EFFLUENT CHARACTERISTICS Other Units (Specify)

Monthly Instantaneous Monthly Daily Measurement Frequency Sample Maximum Average Maximum Average MR 855 Daily Continuot" or PunF., .A Flow (MGD)

Discharge Temperature*C(°F) Daily Continuot..

February 32.2(90.0) Daily Continuous December 33.3(92.0)

March 37.8(100.0) Daily Continuous April 41.1(106.0) Daily Continuous May 44.0(111.2) Daily Continuous June - September 42.2(108.0) Daily Continuous October 37.8(100.0) Daily Continuous November 33.0(91.4) Daily Continuous Dam Release Temperature 2/month Multiple Grabs BTotal Residual Chlorine 0.2 mg/l Grab MR 1/month CMercury, total MR ASee Part V.C, Special Condition #2 'MR = Monitor and Report Based on a flow of 855 MGD

'See Part V.A, Special Condition #3 CSee Part V.A, Special Condition #8 reported.

a. The pH shall be monitored by grab sample at a I frequency of twice per month and nor shall the effluent cause

b. There shall be no discharge of floating solids or visible foam in other than trace amounts a visible sheen on the receiving waters.

be taken at the following

c. Samples taken in compliance with the monitoring requirements specified above shall 23 Bridge, and all other measured location(s): flow at plant intakes, dam release temperature at the S.C. Hlighway parameters at the discharge canal weir prior to mixing with Lake Robinson.

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS

2. During the period beginning on the effective date of this permit and lasting through the expiration date, the permittee is authorized to discharge from internal outfall(s) serial number(s) 002: coal pile runoff to the discharge canal, then via Outfall 001 to Lake Robinson.

Such discharge shall be limited and monitored by the permittee as specified below:

EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIREMENTS (lbs/day) Other Units (Specify)

Monthly Daily Monthly Instantaneous Maximum Measurement Frequency Sample Type

)

Average Maximum Average MR 1/occurrenceB Estimate' Flow (MGD)

I/occurrence" Grab Total Suspended Solids 50.0 mg/I MR= Monitor and Report

'See Part V.C, Special Condition #2

'Since Outfall 002 occurs intermittently, the samples shall be taken during the period when there is a dscharge,

)

but need not be more than once per month.

o0°

a. The p1H shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored once per occurrence' by grab sample.

b. Samples taken in compliance with the monitoring requirements specified above shall be taken at the following LiO 0

location(s): point of discharge from the coal pile runoff retention basin prior to mixing with any other waste stream.

t.,o 0,,

0t(J

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS

3. During the period beginning on the effective date of this permit and lasting through the expiration date, the permittee is authorized to discharge from internal outfall(s) serial number(s) 003: sewerage from the Clow and Davco I extended aeration sanitary waste treatment plants to the discharge canal, then via Outfall 001 to Lake Robinson.

Such discharge shall be limited and monitored by the permittee as specified below:

EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIREMENTS (lbs/day) Other Units (Specify)

Monthly Daily Monthly Daily Measurement Sample Average Maximum Average Maximum Frequency Type Flow (MGD) MR MR 1/month Continuo r Instantaneous' 30 mg/I 45 mg/I 1/month 24Hr. Composite' Biochemical Oxygen Demand (BODs) 1/month 24Hr. Composite' 30 mg/I 45 mg/I Total Suspended Solids 1/month Grab 200/100 ml 400/100 ml Fecal Coliform MR = Monitor and Report Based on a flow of 0.0425 MGD ASee Part V.C, Special Condition #2

'Composite samples shall be collected in accordance with Part I.D. Item 1, 2, or 3.

a. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored once per month by grab sample.

b. Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s): sewage treatment plant discharge prior to mixing with any other waste stream.

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS

4. During the period beginning on the effective date of this permit and lasting through the expirr-.tiol date, the permittee is authorized to discharge from internal outfall(s) serial number(s) 005: ash transport waters, and dhe wastewater regulated at internal Outfall 007 which is discharged to the ash pond to the discharge canal, then via Outfall 001 to Lake Robinson.

Such discharge shall be limited and monitored by the permittee as specified below:

EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIREMENTS (lbs/day) Other Units (Specify)

Monthly Average Daily Maximum Monthly Average Daily Maximum Measurement Frequency Sample Type

)

Flow (MGD) MR MR 1/month Instantaneousa MR MR 1/month Estimatea Flow to the Ash Pond

- 15 mg/l 20 mg/I I/month Grab Oil and Grease 30 mg/I 100 mg/I 1/month Grab Total Suspended Solids -

MR MR 1/month Grab Heavy MetalsB MR = Monitor and Report ASee Part V.C, Special Condition #2 )

'Monitoring for heavy metals shall include total arsenic, cadmium, chromium, copper, iron, lead, mercury, nickel, selenium, and zinc.

110 aJ Z w

a. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored o once per month by grab sample. C,,o W

Samples taken in compliance with the monitoring requirements specified above shall be taken at the following 0-,

b. 0t.JI location(s): discharge from the ash pond prior to mixing with any other waste stream.

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS

5. During the period beginning on the effective date of this permit and lasting through the expiration date, the permittee is authorized to discharge from internal outfall(s) serial number(s) 006: low volume wastes and chemical metal cleaning wastes from the Radwaste System to the circulating water system discharge line, then via Outfall 001 to Lake Robinson.

Such discharge shall be limited and monitored by the permittee as specified below:

DISCHARGE LIMITATIONS MONITORING REQUIREMENTS EFFLUENT CHARACTERISTICS Other Units (Specify)

(lbs/day)

Monthly Daily Monthly Daily Measurement Sample Average Maximum Average Maximum Frequency Type 1/month Estimate Flow (MGD) MR MR 1/month Grab

- *30 mg/I 100 mg/l Total Suspended Solids 20 mg/I 1/month Grab

- 15 mg/l Oil and Grease 1.0 mg/I I/occurrence Grab

- 1.0 mg/l Total CopperB 1.0 mg/I 1/occurrence Grab

- 1.0 mg/l Total IronB MR = Monitor and Report ASee Part V.C, Special Condition #2, Flow monitoring shall be conducted once per week for the metal cleaning waste component of this discharge.

from ",he metal cleaning BSampling for total copper and total iron shall be conducted once per occurrence of discharge waste source before any dilution occurs but need not be more than once per month.

under the

a. The radioactive component of this discharge is regulated by the Nuclear Regulatory Commission the Nuclear Regulatory provisions of operating license DPR-23, as amended, and is monitored and reported to Commission.

0 by grab sample.

The pH shall not be less than 6.0 standard units and shall be monitored once per month o I.

b.

t:

be taken at the following C,,D

c. Samples taken in compliance with the monitoring requirements specified above shall other waste stream.

location(s): discharge from the radwaste treatment system, prior to mixing with any

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS

6. During the period beginning on the effective date of this permit and lasting through the expiration date, the permittee is authorized to discharge from internal outfall(s) serial number(s) 007: chemical metal cleaning wastes to the ash handling system discharge line, then to Internal Outfall 005, then via Outfall 001 to Lake Robinson.

Such discharge shall be limited and monitored by the permitted as specified below:

EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIIREMENTS (lbs/day) Other Units (Specify) npl )

Monthly Daily Monthly Daily Measurement San Average Maximum Average Maximum Frequency TyI tantaneousA Flow (MGD)B - MR MR 1/occurrence Ins Total Coppers - - 1.0 mg/I 1.0 mg/I 1/occurrence Gr Ab Total IronB - - 1.0 mg/I 1.0 mg/I 1/occurrence Gr*Ab MR = Monitor and Report ASee Part V.C, Special Condition #2 )

'Sampling for flow, total copper and total iron shall be conducted once per occurrence of discharge of :he chemical metal cleaning waste before any dilution occurs but need not be more than once per month.

a. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored per occurrence but need not be more than once per month by grab sample.

the following

b. Samples taken in compliance with the monitoring requirements specified above shall be tak n at stream.

location(s): discharge from the chemical metal cleaning waste source, prior to mixing with any other waste

REQUIREMENTS A. EFFLUENT LIMITATIONS AND MONITORING is on the effective date of this permit and lasting through the expiration date, the permittee During the period beginning runoff via 7.

to discharge from internal outfall(s) serial number(s) 008: low volume wastes and 3to0im water authorized Black Creek.

Outfall 001 to Lake Robinson, or to Outfall 011 to by the permittee as specified below:

Such discharge shall be limited and monitored MONITORING REQUIREMENTS DISCHARGE LIMITATIONS EFFLUENT CHARACTERISTICS Other Units (Specify)

(lbs/day) Sample Monthly Daily Measurement Monthly Daily -

Type Maximum Frequency Average Maximum Average I/week Continuc A r

Flow (GD)

"Instantaneu-,-s MR MR Flow (MGD) 20 mg/l 2/month Grab 15 mg/I Oil and Grease 100 mg/I 2/month Grab 30 mg/I Total Suspended Solids MR = Monitor and Report ASee Part V.C, Special Condition #2 shall twice per month by grab sample. If the discharge is via Outfall 014, the pli The pH shall be monitored 6.0 standard

a. is via Outfall 011, the pH shall not be less than not be less than 6.0 standard units. If the discharge units nor greater than 9.0 standard units.

a. the following o requirements specified above shall be taken

b. Samples taken in compliance with the monitoring mixing Outfalls 008 and 009 have combined and ,irior to locations(s): at a point after discharges from Internal 014, or at the discharge from other waste stream, if the combined discharge is routed to Internal Outfall to with any discharge is routed to mixing with any other waste stream if the the Unit No. I (East) retention pond prior Outfall 011.

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS

8. During the period beginning on the effective date of this permit and lasting through the expiratic n date, the permittee is authorized to discharge from internal outfall(s) serial number(s) 009: low volume wastes and storm water runoff via Outfall 001 to Lake Robinson, or to Outfall 011 to Black Creek.

Such discharge shall be limited and monitored by the permittee as specified below:

EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIREMENTS (lbs/day) Other Units (Specify)

Monthly Daily Monthly Daily Measurement Samplc )

Average Maximium Average Maximum Frequency Type Flow (MGD) MR MR l/week Continuous' or Instantaneous' 15 mg/l 20 mg/1 2/month Grab Oil and Grease 30 mg/I 100 mg/l 2/month Grab Total Suspended Solids MR = Monitor and Report )

ASee Part V.C, Special Condition #2 014, the plI shall

a. The pH shall be monitored twice per month by grab sample. If the discharge is via Outfall 6.0 standard not be less than 6.0 standard units. If the discharge is via Outfall 011, the p1-I shall not be less than units nor greater than 9.0 standard units.

taken at the following 0

b. Samples taken in compliance with the monitoring requirements specified above shall be mixing locations(s): at a point after discharges from Internal Outfalls 008 and 009 have combined and rrior to with any other waste stream, if the combined discharge is routed to Internal Outfall 014, or at the;e discharge from any other waste stream if the dischar is routed to 8t'U the Unit No. 2 (West) retention pond prior to mixing with Outfall 011.

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS

9. During the period beginning on the effective date of this permit and lasting through the expira.ion date, the permittee is authorized to discharge from outfall(s) serial number(s) 011: miscellaneous wastewater consisting of storm water runoff, intake screen wash, and wastewater treated at internal 008 and 009 to Black Creek.

Such discharge shall be limited and monitored by the permittee aI specified below:

EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQU IREM ENTS (lbs/day) Other Units (Specify) "nple Monthly Daily Monthly Daily Measurement Sar Average Maximum Average Maximum Frequency ryl imate Flow (MGD) MR MR l/month Est MR = Monitor and Report Based on a flow of 0.426 MGD ASee Part V.C, Special Condition #2

a. The pH shall be monitored by grab sample at a frequency of once per month and reported.

b. There shall be no discharge of floating solids or visible foam in other than trace amounts; nor, shall this discharge cause a visible sheen on the receiving waters.

c. Samples-taken in compliance with the monitoring requirements specified above shall be taken at the following location(s): the discharge from the yard drain pipe to Black Creek, prior to mixing with any other waste stream.

REQUIREMENTS A. EFFLUENT LIMITATIONS AND MONITORING is on the effective date of this permit and lasiing through the expiration date, the permittee

10. During the period beginning and from internal outfall(s) serial number(s) 013: low volume wastes from steam generator authorized to discharge line, then via Outfall 001 to Lake Robinson.

drainage to the circulating water system discharge by the permittee as specified below:

Such discharge shall be limited and monitored MONITORING REQUIREMENTS DISCHARGE LIMITATIONS EFFLUENT CHARACTERISTICS I Other Units (Specify)

(lbs/day) Sample )

Daily i Monthly Daily Measurement Monthly Type Maximum Frequency Average Maximum Average MR I/month Estimate'

- MR Flow (MGD) 20 mg/I I/month Grab 15 mg/I Oil and Grease 100 mg/I 1/month Grab 30 mg/l Total Suspended Solids MR = Monitor and Report "ASee Part V.C, Special Condition #2 grab sample.

be not be less than 6.0 stafndard units and shall be monitored once per month by

a. The pH shall at the specified above shall be takenblowdown, -0

b. Samples taken in compliance with the monitoring requirements from the steam generator low volume wastewater following location(s): the discharge of the 0 prior to mixing with any other waste stream.

C)

LA CDU C:)

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS

11. During the period beginning on the effective date of this permit and lasting through the expiratioa date, the permittee is authorized to discharge from internal outfall(s) serial number(s) 014: combined low volume was'estreams from internal Outfalls 006, 008, 009, 013 and cooling water from the bcirculating water system discharge line to the discharge canal, then via Outfall 001 to Lake Robinson.

Such discharge shall be limited and monitored by the permittee as specified below:

EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIREMENTS (lbs/day) Other Units (Specify)

Monthly Daily Sample Monthlly Da ily Measurement Averag re Ma ximum Average Maximum Frequency Type MR MR 1/month EstimateA Flow (MGD)

MR = Monitor and Report ASee Part V.C, Special Condition #2 *1

a. The pH shall not be greater than 9.0 standard units and shall be monitored once per month by grab sample.

b. Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s): after the combined low volume wastestreams and cooling waters mix at the head of bhe discharge canal.

0d 00 o

CA0 I'J tD t-).

A KI III Page 29 of 52 Permit No. SC0002925 INTERIM MONITORING REQUIREMENTS B. EFFLUENT TOXICITY LIMITATIONS AND and lasting through (three (3) years after

1. During the period beginning on the effective date of this permit from outfall(s) serial number(s) 001: once the effective date), the permittee is authorized to discharge internal Outfalls 002, 003, 005, 006, 007, 008, 009, 013 through cooling water, and wastewaters regulated at and 014 to Lake Robinson.

the permittee as specified below:

Such discharge shall be limited and monitored by DISCHARGE MONITORING REQUIREMENTS DISCHARGE LIMIITATIONS EFFLUENT Measuemen CHARACTERISTICS Quarterly Measurement AverageA Maximum' Frequency Sample Type MR%C MR%C 1/Quartet9 Grab Whole Effluent "Toxicity Chronic Testing

@ CTC = 100%

Whole Effluent Toxicity MRc MR%c l/Quartert Grab Chronic Testing

= 100%

Reproduction @ CTC Grab MRC MRC I/QuarterD Whole Effluent Toxicity M c Rc Chronic Testing - Mortality

@ CTC = 100'i valid tests performed during the monitoring Quarterly average is deftned as the mean of percent effects of all 1.d.

period following the procedures given in Part V.B.

OMaximum is defined as the highest percent effect of all valid tests performed during the monitoring period following the procedures in Part V.B. 1.d. requirements.

CSee Part V.B. 1 for additional toxicity reporting one test until (from the time the first sample is taken to start

'Valid tests must be separated by at least 13 days There is no restriction on when a new test may begin the time the first sample is taken to start a different test).

following a failed or invalid test.

MR = Monitor and Report Results the discharge limitations and monitoring

a. Samples used to demonstrate compliance with discharge canal weir prior to mixing with Lake requirements specified above shall be taken at the Robinson.

to assess a quarter, results from that test must be used

b. If only one valid test is conducted during than one valid as the maximum limit. If more compliance with the quarterly average limit as well percent inhibition of all valid tests must be used to test is completed during the quarter, the mean average limit.

demonstrate compliance with the quarterly reported on the DMR. For the average limit,

c. Valid test results from split samples may be maximum limit, the determine the sample results. For the individual valid results are averaged to identified on the DMR. All laboratories used shall be maximum result of all valid tests is reported reported as a form. For the purposes of reporting on the DMR, a split sample is on the DMR it is split.

single sample regardless of the number of time

PART III Page 30 of 52 Permit No. SC0002925 REQUIREMENTS FINAL EFFLUENT TOXICITY LIMITATIONS AND MONITORING the effective date) and lasting through the During the period beginning on (three (3) years after outfall(s) serial number(s) 001: once through expiration date, the permittee is authorized to discharge from 002, 003, 005, 006, 007, 008, 009, 013 and cooling water, and wastewaters regulated at internal Outfalls 014 to Lake Robinson.

as specified below:

Such discharge-shall be limited and monitored by the permittee DISCHARGE MONITORING REQUIREMENTS LIMITATIONS EFFLUENT CHARACTERISTICS Quarterly Measurement MaximumB Frequency Sample Type AverageA Whole Effluent Toxicity 1/Quarter D Grab 40%c Chronic Testing

@ CTC = 100%

Whole Effluent Toxicity I/QuarterD Grab Chronic Testing - MRc MRc Reproduction @ CTC = 100%

Whole Efiuent Toxicity l/QuarterD Grab MR%C MR%c Chronic Testing - Mortality

@ CTC = 100% .

AQuarterly average is defined as the mean of percent effects of all valid tests performed during the monitoring period following the procedures given in Part V.B.2.d.

all valid tests performed during the monitoring period

'Maximum is defined as the highest percent effect of following the procedures in Part V.B.2.d. requirements.

CSee Part V.B.2 for additional toxicity reporting sample is taken to start one test until DValid tests must be separated by at least 13 days (from the time the first There is no restriction on when a new test may begin the time the first sample is taken to start a different test).

following a failed or invalid test.

MR = Monitor and Report Results the discharge limitations and monitoring

a. Samples used to demonstrate compliance with canal weir prior to mixing with Lake requirements specified above shall be taken at the discharge Robinson.

from that test must be used to assess

b. If only one valid test is conducted during a quarter, results the maximum limit. If more than one valid compliance with the quarterly average limit as well as inhibition of all valid tests must be used to test is completed during the quarter, the mean percent average limit.

demonstrate compliance with the quarterly on the DMR. For the average limit,

c. Valid test results from split samples may be reported sample results. For the maximum limit, the individual valid results are averaged to determine the All laboratories used shall be identified maximum result of all valid tests is reported on the DMR.

on the DMR, a split sample is reported as a on the DMR form. For the purposes of reporting time it is split.

single sample regardless of the number of

PART IIl Page 31 of 52 Permit No. SC0002925 REQUIREMENTS INTERIM B. EFFLUENT TOXICITY LIMITATIONS AND MONITORING and lasting through (three (3) years after

3. During the period beginning on the effective date of this permit from outfall(s) serial number(s) 011:

the effective date), the permittee is authorized to discharge intake screen wash, and wastewater treated at miscellaneous wastewater consisting of storm water runoff, internal Outfalls 008 and 009 to Black Creek.

as specified below:

Such discharge shall be limited and monitored by the permittee DISCHARGE EFFLUENT LBIITATIONS SLISATION MONITORING REQUIREMENTS CHARACTERISTICS Quarterly Measurement IvMaximum 9 Frequency Sample Type Average' MRC MRc 3/QuarterD Grab Whole Effluent Toxicity Chronic Testing

@ CTC=100%

Whole Effluent Toxicity Grab Chronic Testing - MR%C MR%C 3/QuarterD Reproduction @ CTC = 100%

Whole Effluent Toxicity Chronic Testing - Mortality MR%C MRc 3/Quarter 0 Grab

,@DTC = 100%

during the monitoring AQuarterly average is defined as the mean of percent effects of all valid tests performed period following the procedures given in Part V.B. .d. tests performed during the monitoring period "Maximum is defined as the highest percent effect of all valid following the*procedures in Part V.B.1.d.

CSee Part V.B. I for additional toxicity reporting requirements. until DValid tests must be separated by at least 13 days (from the time the first sample is taken to start one test is no restriction on when a new test may begin the time the first sample is taken to start a different test). There following a failed or invalid test.

MR = Monitor and Report Results limitations and monitoring requirements

a. Samples used to demonstrate compliance with the discharge pipe to Black Creek, prior to mixing specified above shall be taken at the discharge from the yard drain with any other waste stream.

that test must be used to assess compliance

b. If only one valid test is conducted during a quarter, results from than one valid test is completed with the quarterly average limit as well as the maximum limit. If more tests must be used to demonstrate compliance during the quarter, the mean percent inhibition of all valid with the quarterly average limit.

DMR. For the average limit, individual valid

c. Valid test results from split samples may be reported on the maximum limit, the maximum result of all results are averaged to determine the sample results. For the be identified on the DMR form. For the valid tests is reported on the DMR. All laboratories used shall sample regardless of the number of purposes of reporting on the DMR, a split sample is reported as a single time it is split.

Outfall 011, then the chronic toxicity testing

d. If Outfills 008 and 009 have not discharged for the quarter via will not be required.

PART III Page 32 of 52 Permit No. SC0002925 FINAL

3. EFFLUENT TOXICITY LIMITATIONS AND MONITORING REQUIREMENTS through the During the period beginning on the (three (3) years after the effective date) and lasting number(s) 011:

expiration date, the permittee is authorized to discharge from outfall(s) serial treated at miscellaneous wastewater consisting of storm water runoff, intake screen wash, and wastewater internal Outfalls 008 and 009 to Black Creek.

below:

Such discharge shall be limited and monitored by the permittee as specified DISCHARGE MONITORING REQUIREMENTS EFFLUENT LIMITATIONS CHARACTERISTICS Quarterly Measurement Average' Maximum' Frequency Sample Type Whole Effluent Toxicity 25 %c I 40%c 3/QuarterD Grab Chronic Testing

@ CTC = 100%

Whole Effluent o ToxicityD MR%c MR%c 3/Quarter0 Grab Chronic Testing Reproduction @ CTC = 100%

Whole Effluent Toxicity MR%C MR%c .3/QuarterD Grab Chronic Testing - Mortality

@CTC =-100% -- "-**' -__

^Quarterly average is defined as the mean of percent effects of all valid tests performed during the monitoring period following the procedures given in Part V.B.2.d.

monitoring period

'Maximum is defined as the highest percent effect of all valid tests performed during the following the procedures in Part V.B.2.d.

cSee Part V.B.2 for additional toxicity reporting requirements.

"DValid tests must be separated by at least 13 days (from the time the first sample is taken to start one test until a new test may begin the time the first sample is taken to start a different test). There is no restriction on when following a failed or invalid test.

MR = Monitor and Report Results requirements

a. Samples used to demonstrate compliance with the discharge limitations and monitoring yard drain pipe to Black Creek, prior to mixing specified above shall be taken at the discharge from the with any other waste stream.

compliance

b. If only one valid test is conducted during a quarter, results from that test must be used to assess test is completed with the quarterly average limit as well as the maximum limit. If more than one valid demonstrate compliance during the quarter, the mean percent inhibition of all valid tests must be used to with the quarterly average limit.

limit, individual valid

c. Valid test results from split samples may be reported on the DMR. For the average limit, the maximum result of all results are averaged to determine the sample results. For the maximum form. For the valid tests is reported on the DMR. All laboratories used shall be identified on the DMR of purposes of reporting on the DMR, a split sample is reported as a single sample regardless of the number time it is split.

toxicity testing will

d. If Outfalls 008 and 009 have not discharged for the quarter via Outfall 0 11, then the chronic not be required.

PART III Page 33 of 52 Permit No. SC0002925 C. GROUNDWATER MONITORING REQUIREMENTS expiration date,

1. During the period beginning on the effective date of this permit and lasting through the below:

each of the four (4) groundwater monitor wells shall be sampled by the permittee as specified MEASUREMENT FREQUENCY SAMPLE METHOD PARAMETER Wrp,-r Leve!, tenth/feet Semiannually Pump Method Semiannually Pump Mtezhod Total Dissolved Solids Semiannually Pump Method pH (field), standard units Semiannually Pump Method Specific Conductance (field), umhos/cm Semiannually Pump Method Arsenic, total, mg/i Semiannually Pump Method Iron, total, mg/I Semiannually Pump Method Sulfate, mg/I Semiannually Pump Method Zinc, total, mg/i Investigations

2. Sample collection methods shall be in accordance with EPA - Environmental or the most Standard Operating Procedures and Quality Assurance Manual, November 2001, recernt rev:,...

3. All groundwater monitoring wells must be properly maintained at all times.

PART IV Page 34 of 52 Permit No. SC0002925 PART IV. Schedule of Compliance A. Schedule(s) limitations specified for discharges in accordance The Permittee shall achieve compliance with the effluent with the following schedule:

permit, the permittee may submit to the (a) Within ninety (90) days after the effective date of this use of another alternate test organism to be Department-for review and approval a study plan for the days after the effect date of this permit, the used for toxicity testing. Additionally, within ninety (90) approval a study plan for determining an permittee may submit to the Department for review and Outfall 001 and/or 011.

alternate Chronic Test Concentration (CTC) value for limits but not less than ninety (90) days (b) In sufficient time to attain compliance with the proposed complete the study and submit a final report for before the final compliance date, the permittee shall for permit modification on toxicity.

Departmental approval accompanied by a written request comply with the toxicity limits shall be submitted (c) Interim reports of progress describing measures to from the effective date of the permit until the to the Department every 270 days beginning 270 days 270 days.

final compliance date. The last date may not be a full permit), the permittee shall be in compliance (d) On or before (threeyears after the effective date of this in Part III.B.2 & 4 on Pages 30 and 32 witn die nknits on Whole Efflucnt Toxicity -(WET) established for Outfalls 001 and 011.

any progress reports on, interim and final B. Reports of compliance or noncompliance With, or this permit shall be submitted no later than 14 requirements contained in any compliance schedule of days following each scheduled date.

(

F-'AKI V Page 35 of 52 Permit No. SC0002925 PART V. Other Requirements A. Effluent Requirements

1. The permittee shall monitor all parameters consistent with conditions established by this permit on the 1st Wednesday of every calendar month, except for the toxicity testing which shall be monitored on the 1st Monday of every calendar quarter, unless otherwise approved by this Department. If the sampling day falls on a holiday, the permittee will be allowed to sample the kecofid week of the calendar month. Additional monitoring, as necessary to meet the frequency requiremcnts of this permit shall be performed by the permittee.

2. Each individual generating unit is not allowed to discharge chlorine for more than two hours in any one day, unless the permittee can demonstrate to SCDHEC that a longer duration discharge is required for macro invertebrate control.

of the

3. Multiple grabs shall consist of grab samples collected at the approximate beginning until TRC is period of Total Residual Chlorine discharge and once every twenty (20) minutes no longer quantifiable.

4. Discharge from Lake Robinson Dam during the months of June through September shall be from the lower depths to the extent practicable to assure that the limitations provided on page 18 are not exceeded.

5. The discharge of the intake screen wash water is permitted without limitations or monitoring requirements.

6. There shall be no discharge of polychlorinated biphenyl compounds such as those commonly used for transformer fluid.

that

7. The South Carolina Department of Health and Environmental Control has determined by pursuant to Section 316(a) of the Act that the thermal component of the discharge controlled of a the temperature criteria on page 18 of this permit assures the protection and propagation balanced, indigenous population of fish, shellfish, and wildlife.

8. Within three (3) months of the effective date of this permit, the practical quantitation limit (PQL) using the analytical methods stated below shall be used for sampling and reporting results for mercury.

Analytical Methods PQL EPA 1669/1631C 0.0005 jig/1 with The permittee must either become certified to perform mercury sampling in accordance to sample for Method 1669 or utilize a laboratory or other entity that is or becomes certified mercury using Method 1669 within this time.

PART V Page 36 of 52 Permit No. SC0002925 mercury sampling to calculate reasonable potential.

The permittee shall use the results obtained from permit Rebisonable potential may be evaluated after each sample using the guidelines established inofthe data, the not to exist from one (1) year rationale. At any time reasonable potential is determined address requesting the mercury monitoring be permittee may submit a written request to the following discontinued.

Control S.C. Department of Health and Environmental and Storm Water Permitting Division Bureau of Water/Industrial, Agricultural 2600 Bull Street Columbia, South Carolina 29201 be sent to the permittee with no mercury monitoring Upon Departmental concurrence, a new DMR will water potential to cause or contributes to an instream included. If the discharge causes, has the reasonable to include year of data, the permit may be reopened quality violation for mercury based on one (1) on mercury.

additional requirements and/or limitations Requirements B. Effluent Toxicity and Other Biological Monitoring identified in Part III.B.1, B.3:

1. Interim Limits - For the requirements at the frequency stated in Part III.B. 1 and

a. A three brood chronic toxicity test shall be conducted Requirements," using the CTC of 100% and B * , "Effluent Toxicity Limitations and Monitoring 50%, 60%, 71%, and 84% effluent. The the fol Ioow itg-Test concentrations: 0% (control),

without prior auffiori.ation from the Departmem permittee may add additional test concentrations replicates in each concentration and all data is provided that the test begins with at least ten (10) used to determine permit compliance.

1002.0 in accordance with ""Short-Term Methods

b. The test shall be conducted using EPA Method and Receiving Waters to Freshwater'Organisms,"

for Estimating Chronic Toxicity of Effluents dubia as the test species.

(EPA/600/ 4 -9 11 ; 3' ed., 1994) using Ceriodaphnia 002 Poisson logistic regression (3PLR) model assuming a

c. The perrnittee shall use the 3-parameter of Water document entitled "Options for Data distribution as recommended in the DHEC Bureau by NPDES Permits," September 2001 for Analysis of Whole Effluent Toxicity Testing Required at the applicable CTC.

calculating biological effect (percent inhibition) as a control and test group performance expressed

d. Percent effect is the difference between or percentage of control group performance, test group performance ), 100, where performance is survival or reproduction.

performance oeffect = (1- control group on both Ceriodaphniadubia survival and reproduction The permittee shall report the percent effect greater of the percent effect on survival and at the CTC. Overall percent effect is the reproduction.

?AKI 'V Page 37 of 52 Permit No. SC0002925 or if the laboratory is not

e. A test shall be invalidated if any part of Method 1002.0 is not followed use the additional test acceptance certified at the time the test is conducted. The permittee shall of Whole Effluent Toxicity Testing criteria (TAC) identified in the "Options for Data Analysis tests must be invalidated if the Required by NPDES Permits," September 2001. As such, must also be used and applied applicable TACs are not met. The following additional TACs uniformly to all tests for invalidation during every reporting period:

laboratory control limits as (1) The most recent valid reference toxicant test must be within determined from individual laboratory control charts.

less than 30 days prior to the (2) The most recent valid reference toxicant test was completed completion of the WET test required by this permit.

regarding the validity, acceptability, or

f. The Department reserves the right of independent decision chemistry bench sheets.

outcome of any test, after review of raw data and/or water form entitled "DMR Attachment for

g. All valid toxicity test results shall be submitted on the DHEC addition, results from all invalid tests Toxicity Test Results" in accordance with Part II.L.4. In permittee has sole responsibility for must be appended to DMRs, including lab control data. The to complete and report the scheduling toxicity tests so as to ensure there is sufficient opportunity period.

required number of valid test results for each monitoring during each monitoring period. However,

h. The permittee is responsible .for reporting a valid test of the following conditions must be the Department ackliowledges that invalid tests may occur. All on Whole Effluent Toxicity (WET) satisfied for the permittee to be in compliance with limitations not obtained.

for a particular monitoring period when a valid test was were invalid in accordance with Part (1) A minimum of five (5) tests have been conducted which V.B.1.e above; (2) The data and results of all invalid tests are attached to the DMR; after two (2) consecutive invalid tests (3) At least one additional State-certified laboratory is used number(s) of the were determined by the first laboratory. The name(s) and lab certification the DMR; and additional lab(s) shall be reported in the comment section of reporting periods.

(4) A valid test was reported during each of the previous three "H" in the appropriate boxes on the If these conditions are satisfied, the permittee may enter of the DMR that "H indicates invalid toxicity DMR and add the statement to the Comment Section tests."

that supports a modification in accordance

i. This permit may be modified based on new information with Regulation 61-9.122.62 and Regulation 61-68.D.

PART V Page 38 of 52 Permit No. SC0002925

2. Final Limits - For the requirements identified in Part III.B.2, B.4:

conducted at the

a. A single concentration (pass/fail) three brood chronic toxicity test shall be frequency stated in Part III.B, "Effluent Toxicity Limitations and Monitoring Requirements,"

The using the CTC of 100% (or alternate CTC approved be the Department) and a control 0%.

permittee may add additional test concentrations without prior authorization from the Department to provided that the test begins with at least 10 replicates in each concentration and all data isused determine permit compliance.

conducted using

b. If the test the test species continues to be Ceriodaphniadubia the test shall be Estimating CiLIotd,. Toxiciiy EPA Method 1002.0 in accordance with ""Short-Term Methods for If an of Effluents and Receiving Waters to Freshwater Organisms," (EPA/600/4-91/002; 3"d ed.).

applicable alternate test organism is approved by the Department, the test will be using Department approved methods.

expressed as a

c. Percent effect is the difference between control and test group performance percentage of control group performance, or

% effect = (I - test group performance ) 100 , where performance is survival or reproduction.

control group performance the CTC.

The permittee shall report the percent effect on both survival and reproduction at Overall percent effect is the greater of the percent effect on survival and reproduction.

is not

d. A test shall be invalidated if any part of Method 1002.0 is not followed or if the laboratory certified at the time the test is conducted. The permittee shall use the additional test acceptance Testing criteria (TAG) identified in the "Options for Data Analysis of Whole Effluent Toxicity be invalidated if the Required by NPDES Permits," September 2001. As such, tests must and applied applicable TACs are not met. The following additional TACs must also be used uniformly to all tests for invalidation during every reporting period:

(1) The most recent valid reference toxicant test must be within laboratory control limits as determined from individual laboratory control charts.

prior to the (2) The most recent valid reference toxicant test was completed less than 30 days completion of the WET test required by this permit.

the validity, acceptability, or

e. The Department reserves the right of independent decision regarding outcome of any test, after review of raw data and/or water chemistry bench sheets.

"DMR Attachment for

f. All valid toxicity test results shall be submitted on the DHEC form entitled from all invalid tests Toxicity Test Results" in accordance with Part II.L.4. In addition, results sole responsibility for must be appended to DMRs, including lab control data. The permittee has to complete and report the scheduling toxicity tests so as to ensure there is sufficient opportunity required number of valid test results for each monitoring period.

PART V Page 39 of 52 Permit No. SC0002925 limits for four (4) consecutive quarters, the

g. If the discharge complies with all applicable toxicity the Whole Effluent Toxicity (WET) permittee may request that the Department decrease monitoring requirements.

each monitoring period. However,

h. The permittee is responsible for reporting a valid test during of the following conditions must be All the Department acknowledges that invalid tests may occur.

limitations on Whole Effluent Toxicity (WET) satisfied for the permittee to be in compliance with test was not obtained.

for a particular monitoring period when a valid which were invalid in accordance with Part (I) A ihiniimum of five (5) tests have been conducted V.B.I.e above; to the DMR; (2) The data and results of all invalid tests are attached is used after two (2) consecutive invalid tests (3) At least one additional State-certified laboratory and lab certification number(s) of the were determined by the first laboratory. The name(s) section of the DMR; and additional lab(s) shall be reported in the comment three reporting periods.

(4) A valid test was reported during each of the previous enter "H" in the appropriate boxes on the If these conditions are satisfied, the permittee may Section of the DMR that "H indicates invalid toxicity DMR and add the statement to the Comment tests."

accordance information that supports a modification in

. This permit may be modified based on new with Regulation 61-9.122.62 and Regulation 61-68.D.

C. Other Conditions sludges, waste oil, and solid and hazardous waste shall be properly disposed of in accordance with the

1. All the intake screen backwash.

rules and regulations of the Department, including the facility a record of the method(s) used in measuring

2. The permittee shall maintain at the permitted discharge flow:

Water Use Records

a. Estimate - Pump Curve, Production Chart, Valve Opening, Tank Volume Gauge, Parshall Flume

b. Instantaneous - Bucket and Watch, Weir and

c. Continuous - Totalizer, Continuous Chart Recorder on of any .necessary calibrations must also be kept. This information shall be made available for Records normal working hours.

site review by Department personnel during III-B in the biological wastewater treatment plant has been assigned a classification of Group

3. The to an operator Department. This classification corresponds Permits to Construct which are issued by the assigned a of B-BB. The wastewater treatment ash pond and low volume ponds have been with a Grade

PART V Page 40 of 52 Permit No. SC0002925 by the Department. This classification of Group I-P/C in the Permits to Construct which are issued classification corresponds to an operator with a Grade of D-P/C.

of routine daily biological

4. During system operation, the Permittee shall provide for the performance grade. Also, the wastewater treatment plant inspections by a certified operator of the appropriate week wastewater treatment plant Permittee shall provide for the performance of routine twice per ash pond and low volume ponds.

inspections by a certified operator of the appropriate grade of the a minimum certification of one Weekend and holiday inspections may be performed by an operator with Regulations of the Environmental grade lower than the certified operator required by the Rules and in this Permit to Construct. The Certifirstion Board based on the treatment plant classification designated a visual observation to determine inspection shall include, but is not limited to, areas which require be taken using the 0 & M manual as efficient operations and for which immediate corrective measures can time and name of person making the a guide. All inspections shall be recorded and shall include the date, repair, or replacement inspection, corrective measures taken, and routine equipment maintenance, sheets generated by the performed. The certified operator shall review and validate all inspection encountered by the weekend and weekend and holiday operator. Any unusual or significant problems shall initiate corrective action.

holiday operator shall be immediately reported to the certified operator who where possible. The The Permittee shall maintain all records of inspections at the permitted facility, working hours.

records shall be made available for on-site review during normal (BMP) plan to identify and control

5. The permittee shall continue to maintain a Best Management Practices listed in 40 CFR Part the discharge of significant amounts of oils and the hazardous and toxic substances shall include a listing of all 117 and Tables II and III of Appendix D to 40 CFR Part 122. The'plan containment, a description of training, potential sources of spills or leaks of these materials, a method for to be taken in the event of a inspection and security procedures, and emergency response measures an equivalent BMP. Sources of discharge to surface waters or plans and/or procedures which constitute process and material handling such discharges may include materials storage areas; in-plant transfer, and waste disposal areas. The BMP areas; loading and unloading operations; plant site runoff; and sludge practices, shall be documented in narrative plan shall be developed in accordance with good engineeringor maps. The BMP plan shall be maintained form, and shall include any necessary plot plans, drawings, Department personnel.

at the plant site and shall be available for inspection by EPA and wastewater treatment plant and

6. The permittee shall maintain an all weather access road to the appurtenances at all times.

has determined pursuant to Section

7. The South Carolina Department of Health and Environmental Control of the cooling water intake structure 316(b) of the Act that the location, design, construction, and capacity impact.

reflects the best technology available for minimizing adverse environmental of 2.0 feet, as a monthly average, below

8. Drawdown of Lake Robinson shall be limited to a maximum SCDHEC. Such approval may impose normal pool elevation (220.0 feet) without a prior approval by the periods of greater drawdown.

more stringent thermal limitations than indicated on page 18 during in the application, the permittee shall meet the

9. Unless authorized elsewhere in this permit or as identified following waste streams: once-through following requirements concerning maintenance chemicals for the cooling tower blowdown, and air noncontact cooling water, recirculated cooling water, boiler blowdown,

PART V Page 41 of 52 Permit No. SC0002925 additives to the above washer water. Maintenance chemicals shall be defined as any man-induced zinc, referenced waste streams. This includes materials added for corrosion inhibition including chromium, and phosphorus.

priority pollutants is

a. The discharge, in detectable amounts, of any of the one hundred and twenty-six chemicals. (Note: The prohibited, if the pollutants are present due to the use of maintenance cooling tower blowdown must comply with 40 CFR 423 requirements.)

requirements of the

b. Slimicides, algicides and biocides shall be used in accordance with registration Federal Insecticide, Fungicide and Rodenticide Act.

is prohibited unless written

c. The use of maintenance chemicals containing bis(tributyltin) oxide approval is obtained from SCDHEC.

streams must degrade rapidly,

d. Any maintenance chemicals added to the above referenced waste either due to hydrolytic decomposition or biodegradation.

limited to concentrations,

e. The discharge of maintenance chemicals added to waste streams must be and shall not exceed the "no which protect indigenous aquatic populations in the receiving stream observed effect level (NOEL)".

that the above requirements are The permittee shall keep sufficient documentation on-site which support review by Department personnel during being met. The information shall be made available for on-site necessitate the submittal of chemical norffial working hours. The occurrence of in-stream problems may monitoring and limitations. The additive data and may require a permit modification to include additional South Carolina Department of Health permittee may demonstrate compliance with these limitations to the the pollutants in the discharge or and Environmental Control by either sampling and analyzing for maintenance chemicals will not providing mass balance calculations to demonstrate that use of particular result in detectable amounts of the toxic pollutants in the discharge.

Environmental Control in writing

10. The company shall notify the South Carolina Department of Health and maintenance chemicals in the cooling no later than sixty (60) days prior to instituting use of any additional water system. Such notification shall include:

a. Name and general composition of the maintenance chemical

b. Quantities to be used

c. Frequency of use

d. Proposed discharge concentration

e. EPA registration number, if applicable

f. Aquatic toxicity information defined as a twenty four (24) hour period

11. A calendar day, for all monitoring at Outfall 001, shall be ending at noon of that calendar day.

plants is approved for disposal to the ash

12. The sludge generated from the sanitary wastewater treatment pond with the following conditions:

PART V Page 42 of 52 Permit No. SC0002925 ash is being may only be disposed of to the ash pond during periods when

a. The sanitary sludge sluiced into the ash pond.

on a weekly gallons of sanitary sludge may be disposed of to the ash pond a

b. A maximum of 10,000 septic, and contact chambers are purged on a quarterly basis, basis. Also, when the surge, may be disposed of to the ash pond.

maximum of 24,000 additional gallons pond(s) provide(s) the of the NPDES permit, the permittee shall certify that the ash i3. At Li 1 01..ienewal all direct rainiia.1, wetn weiather detention volume to contain the combined volume of maximum dry necessary minithlm event, and runoff to the pond resulting from the 10-year, 24-hour rainfall shall be calculated all rainfall during a 24-hour period. This volume which could occur weather plant waste flows level and the minimum overflow discharge elevation. All data necessary between the top of the sediment by SC DHEC shall be maintained on-site and shall be available for inspection support this certification personnel.

to all ash pond dikes and toe areas to determine if the structural survey permittee shall

14. The permittee shall periodically inspections shall be performed annually. The These abnormalities and provide a integrity has been compromised. aware of any structural days of becoming notify SCDHEC within five (5) action and implementation schedule.

proposed course of corrective is permitted.

15. Simultaneous multi-unit chlorination Requirements - A storm water pollution prevention plan shall Plan be

16. Storm Water Pollution Prevention by this permit. The storm water pollution prevention plan shall be developed for the facility covered sources of engineering practices. The plan shall identify potential prepared in accordance with good to affect the quality of storm water discharges associated with expected pollution which may reasonably be the facility. In addition, the plan shall describe and ensure the from industrial and construction activity to be used to reduce the pollutants in storm water discharges which are of implementation of practices at the facility and to assure compliance with the terms and conditions associated with industrial activity plan implement the provisions of the storm water pollution prevention this permit. The facility must condition of this permit.

required under this part as a A. Signature and Plan Review on with Part I.K (signatory requirements), and be retained

1. The plan shall be signed in accordance permit. It shall be completed within six (6) months of the of this site in accordance with Part II.J as appropriate). Plans shall provide for compliance with (and updated permittee shall effective date of this permit of the effective date of this permit. The plan within one (1) year the terms of the to the Director, or authorized representative.

make plans available upon request of at any time that the plan does not meet one or more permittee from the

2. The Department may notify the Part. Within thirty (30) days of such notification of this the minimum requirements by the Department), or authorized representative, the Department, (or as otherwise provided a written changes to the plan and shall submit to the Department permittee shall make the required changes have been made.

certification that the requested

PART V Page 43 of 52 Permit No. SC0002925 plan whenever there is a change in design, B. Keeping Plans Current The permittee shall amend the effect on the potential for the discharge of construction, operation, or maintenance, which has a significant has not otherwise been addressed in the plan or if pollutants to surface waters of South Carolina and which to be ineffective in eliminating or significantly the storm water pollution prevention plan proves or in otherwise achieving the general objectives minimizing pollutants from sources identified in the plan with industrial activity. Amendments to the of controlling pollutants in storm water discharges associated manner as Part V. 16.A.2 above. Plan records plan may be reviewed by the Department in the same that new contractors and subcontractors have should be updated periodically to reflect the certification signed.

the following items:

C. Contents of Plan. The plan shall include, at a minimum, a specific individual or individuals within

1. Pollution Prevention Team - Each plan shall identify water Pollution Prevention Team that are the facility organization as members of a storm plan and assisting the facility or responsible for developing the storm water pollution prevention revision. The plan shall clearly identify the plant manager in its implementation, maintenance, and responsibilities of the team shall address responsibilities of each team member. The activities and prevention plan.

all aspects of the facility's storm water pollution plan shall provide a description of potential

2. Description of Potential Pollutant Sources. Each amounts of pollutants to storm water sources which may reasonably be expected to add significant pollutants during dry weather from separate discharges or which may result in the discharge of identify all activities and significant materials storm sewers draining the facility. Each plan shall Each plan shall include, at a minimum:

which may potentially be significant pollutant sources.

portions of the drainage area of each storm water

a. Drainage (1) A site map indicating an outline of the structural control measure to reduce pollutants outfall that are within the facility boundaries, each existing where significant materials are exposed to in storm water runoff, surface water bodies, locations occurred, and the locations of the following precipitation, locations where major spills or leaks have precipitation: fueling stations, vehicle and equipment activities where such activities are exposed to areas, locations used for the treatment, storage or maintenance and/or cleaning areas, loading/unloading areas and storage areas.

disposal of wastes, liquid storage tanks, processing water discharges associated with industrial activity (2) For each area of the facility that generates storm of a reasonable potential for containing significant amounts of pollutants, a prediction of the direction with which are likely to be present in storm water flow, and an identification of the types of pollutants Factors to consider include the toxicity of chemical; discharges associated with industrial activity.

the likelihood of contact with storm water; and quantity of chemicals used, produced or discharged; pollutants. Flows with a significant potential for history of significant leaks or spills of toxic or hazardous causing erosion shall be identified.

of the types of materials handled at the site that

b. Inventory of Exposed Materials An inventory inventory shall include a narrative description of potentially may be exposed to precipitation. Such exposure to treated, stored or disposed in a manner to allow significant materials that have been handled, to the date of the issuance of this permit and the storm water between the time of three (3) years prior

PART V Page 44 of 52 Permit No. SC0002925 employed to method and location of on-site storage or disposal; materials management practices the date present; of materials with storm water runoff between the time of three (3) years prior to minimize contact structural and of this permit and the present; the location and a description of existing of the issuance of any pollutants in storm water runoff; and a description non-structural control measures to reduce treatment the storm water receives.

pollutants that Leaks A list of significant spills and significant leaks of toxic or hazardous

c. Spills and to precipitation or that otherwise drain to a storm water conveyance at occurred at areas that are exposed list shall be the date of three (3) years prior to the effective date of this permit. Such the facility after of the permit.

updated as appropriate during the term in storm water A summary of existing discharge sampling data describing pollutants

d. SamplingData during the term of this from the facility, including a summary of sampling data collected

.discharges permit.

of the and Summary of Potential Pollutant Sources A narrative description

e. Risk Identification outdoor storage pollutant sources at the following areas: loading and unloading operations; potential or particulate generating processing activities; significant dust activities; outdoor manufacturing or any significant on-site waste disposal practices. The description shall specifically list processes; and or pollutant parameter and for each potential source, any pollutant potential source of pollutants at the site etc.) of concerns shall be identified.

(e.g. biochemical oxygen demand, The facility covered by this permit shall develop a description of storm water

3. Measures and Controls appropriateness and controls appropriate for the facility, and implement such controls. The management at the facility. The identified potential sources of pollutants priorities of controls in a plan shall reflect components, controls shall address the following minimum description of storm water management such controls:

including a schedule for implementing which may Good housekeeping requires the maintenance of areas

a. Good Housekeepg -

discharges in a clean, orderly manner.

contribute pollutants to storm waters dust measures that prevent or minimize fugitive (i) Fugitive Dust Emissions - The plan must describe off site coal handling areas. The facility shall establish procedures to minimize emissions from specially designed of coal dust. To prevent off site tracking the facility may consider tracking the wash area before they leave the site, and controlling tires, or washing vehicles in a designated water.

of Vehicles - The plan must describe measures that prevent or minimize contamination (ii) Delivery the facility arriving-on the plant site. At a minimum storm water runoff from delivery vehicles must:

site, and of delivery vehicles arriving on the plant

" Develop procedures for the inspection container; and ensure overall integrity of the body or or containers, and

"* Develop procedures to deal with leakage or spillage from vehicles Sensilre that proper protective measures are available for personnel and environm ent.

PARI \

Page 45 of 52 Permit No. SC0002925 that prevent or minimize (iii) Fuel Oil Unloading Areas - The plan must describe measures At a minimum the facility must contamination of storm water runoff from fuel oil unloading areas.

use the following measures or their equivalent:

e Use containment curbs in unloading areas; response procedures

• During deliveries station personnel familiar with spill prevention and contained and cleaned must be present to ensure that any leaks or spills are immediately up; and and/or other containment

- Use spill and overflow protection (drip pans, drip diapers, any spillage that may occur devices shall be placed beneath fuel oil connectors to contain during deliveries or due to leaks at such connectors).

measures that prevent or minimize (iv) Chemical Loading/Unloading Areas - The plan must describe areas. At a minimum the contamination of storm water runoff from chemical loading/unloading the permittee must use the following measures or their equivalent:

to contain spills; and

"* Use containment curbs at chemical loading/unloading areas and response procedures

" During deliveries station personnel familiar with spill prevention cleaned contained and must be present to ensure that any leaks or spills are immediately up.

covered, and chemicals should be Where practicable, chemical loading/unloading areas should be stored indoors.

describe measures that prevent or (v) Miscellaneous Loading/Unloading Areas - The plan must and unloading areas. The facility minimizes the contamination of storm water runoff from loading run on to the loading area by may consider covering the loading area, minimizing storm water to direct storm water away from the grading, berming, or curbing the area around the loading area so that leaks can be contained in area, or locate the loading/unloading equipment and vehicles existing containment and flow diversion systems.

or minimize contamination (vi) Liquid Storage Tanks - The plan must describe measures that prevent At minimum the facility must a

of storm water runoff from above ground liquid storage tanks.

employ the following measures or their equivalent:

"* Use protective guards around tanks;

"*Use containment curbs;

" Use spill and overflow protection (drip pans, drip diapers, and/or other containment any spillage that may occur devices shall be placed beneath chemical connectors to contain during deliveries or due to leaks at such connectors); and

PART V Page 46 of 52 Permit No. SC0002925 Use dry cleanup methods.

prevent or minimize (vii) Large Bulk Fuel Storage Tanks - The plan must describe measures that the facility must contamination of storm water runoff from liquid storage tanks. At a minimum employ the following measures or their equivalent:

Control and

"* Comply with applicable State and Federal laws, including Spill Prevention Countermeasures (SPCC); and

"* Containment berms.

or a chemical spill. At a (viii) The plan must describe measures to reduce the potential for an oil spill, pumps and other related minimum the structural integrity of all above ground tanks, pipelines, deemed necessary based on equipment shall be visually inspected on a weekly basis. All repairs reduce the incidence of spills and the findings of the inspections will be completed immediately to leaks occurring from such faulty equipment.

to reduce the potential (ix) Oil Bearing Equipment in Switchyards - The plan must describe measures areas. The facility may for storm water contamination from oil bearing equipment in switchyard the spread of spills; collection consider level grades and gravel surfaces to retard flows and limit of storm water runoff in perimeter ditches.

residue hauling vehicles shall be inspected (x) Residue Hauling Vehicles - Before leaving the site, all for proper covering over the load. All on-site vehicles shall be inspected for adequate gate sealing load coverings or adequate gate and overall integrity of the body or container. Vehicles without as practicable.

sealing, or with leaking containers or beds must be repaired as soon to reduce and/or control the tracking of (xi) Ash Loading Areas- Plant procedures shall be established requirements to clear the ash ash or residue from ash loading areas including, where practicable, debris and excess water before each building floor and immediately adjacent roadways of spillage, loaded vehicle departs.

measures that prevent or (xii) Areas Adjacent to Disposal Ponds or Landfills - The plan must describe ponds or landfills.

minimize contamination of storm water runoff from areas adjacent to disposal The facility must develop procedures to:

by residue trucks or

"* Reduce ash residue which may be tracked on to access roads traveled residue handling vehicles; and areas..

"* Reduce ash residue on exit roads leading into and out of residue handling runoff from these

"* Or develop other BMPs to reduce, minimize, or control storm water areas.

PART V Page 47 of 52 Permit No. SC0002925 or minimize contamination (xiii) Material Storage Areas - The plan must describe measures that prevent used for temporary storage of of storm water from material storage areas (including areas down areas). The facility may miscellaneous products, and construction materials stored in lay or ditches, erosion protection consider flat yard grades, runoff collection in graded swales stilling basins), covering lay down measures at steep outfall sites (e.g., concrete chutes, riprap, with a temporary covering made of areas, storing the materials indoors, covering the material run on may be minimized by polyethylene, polyurethane, polypropylene, or hypalon. Storm water constructing an enclosure or building a berm around the area.

shall involve timely inspection and

b. Preventive Maintenance - A preventive maintenance program oil/water separators, catch basins) maintenance of storm water management devices (e.g. cleaning to uncover conditions that could as well as inspecting and testing facility equipment and systems to surface waters, and ensuring cause breakdowns or failures resulting in discharges of pollutants appropriate maintenance of such equipment and systems.

potential spills which can contribute

c. Spill Prevention and Response Procedures - Areas where accompanying drainage points shall be pollutants to storm water discharges can occur, and their Where appropriate, specifying identified clearly in the storm water pollution prevention plan.

equipment such as diversion valves material handling procedures, storage requirements, and use of up spills shall be identified in the plan in the plan should be considered. Procedures for cleaning equipment to implement a clean and made available to the appropriate personnel. The necessary up should be available to personnel.

site evaluation required under Part

d. Inspections - In addition to or as part of the comprehensive permit, qualified facility personnel V. 16.C.4 (comprehensive site compliance evaluation) of this of the facility at appropriate intervals shall be identified to inspect designated equipment and areas shall be used to ensure that specified in the plan. A set of tracking or follow up procedures Records of inspections shall be appropriate actions are taken in response to the inspections.

maintained.

shall inform personnel responsible for

e. Employee Training - Employee training programs prevention plan or otherwise implementing activities identified in the storm water pollution of the components and goals responsible for storm water management at all levels of responsibility address topics such as spill of the storm water pollution prevention plan. Training should practices. A pollution prevention plan response, good housekeeping and material management shall identify the frequency for such training.

description of incidents such as spills,

f. Record Keeping and Internal Reporting Procedures - A the quality and quantity of storm or other discharges, along with other information describing under this part. Inspections and water discharges shall be included in the plan required records of such activities shall be maintenance activities shall be documented where practical and incorporated into the plan.

shall identify areas which, due to topography,

g. Sediment and Erosion Control - The plan soil erosion, and identify structural, activities, or other factors, have a high potential for significant to limit erosion.

vegetative, and/or stabilization measures to be used

PART V Page 48 of 52 Permit No. SC0002925 activities, which disturb

i. Construction Activities - For storm water discharges from construction(NOI) to be covered under of Intent greater than five (5)acres, the permittee shall submit a Notice Construction Sites.

the NPDES General Permit for Storm Water Discharges From consideration of the appropriateness

h. Management of Runoff - The plan shall contain a narrative other than those which control the of traditional storm water management practices (practices reuse, or otherwise manage storm generation or source(s) of pollutants) used to divert, infiltrate, discharges from the site. The plan water runoff in a manner that reduces pollutants in storm water shall be implemented and shall provide that measures determined to be reasonable and appropriate pollutants to storm water contribute maintained. The potential of various sources at the facility to of potential pollutant sources) shall discharges associated with industrial activity (see description measures. Appropriate measures may be considered when determining reasonable and appropriate storm water (such as for a process or include: vegetative swales and practices, reuse of collected snow management activities, as an irrigation source), inlet controls (such as oil/water separators),

infiltration devices, and wet detention/retention devices.

personnel shall conduct site compliance

4. Comprehensive Site Compliance Evaluation Qualified but, except as provided in Part V. 16.C.4.d evaluations at appropriate intervals specified in the plan, shall provide:

(below), in no case less than once a year. Such evaluations with industrial activity shall be visually

a. Areas contributing to a storm water discharge associated the drainage system. Measures inspected for evidence of, or the potential for, pollutants entering whether they are adequate and to reduce pollutant loadings shall be evaluated to determine or whether additional control properly implemented in accordance with the terms of the permit measures, sediment and erosion control measures are needed. Structural storm water management identified in the plan shall be measures, and other structural pollution prevention measures visual inspection of equipment needed to observed to ensure that they are operating correctly. A made.

implement the plan, such as spill response equipment, shall be pollutant sources identified in the

b. Based on the results of the inspection, the description of potential pollutant sources) of this permit plan in accordance with Part V. 16.C.2 (description of potential plan in accordance with Part and pollution prevention measures and controls identified in the revised as appropriate within two (2)

V. 16.C.3 (measures and controls) of this permit shall be of any changes to the plan in a weeks of such inspection and shall provide for implementation weeks after the inspection.

timely manner, but in no case more than twelve (12) making the inspection, the date(s) of

c. A report summarizing the scope of the inspection, personnel of the storm water pollution the inspection, major observations relating to the implementation V. 16.C.4.b (above) of the permit shall prevention plan, and actions taken in accordance with Part plan for at least one (1) year be made and retained as part of the storm water pollution prevention shall be signed in accordance with Part after coverage under this permit terminates. The report I.K (signatory requirements) of this permit.

impractical for inactive mining sites due

d. Where annual site inspections are shown in the plan to be required under this part shall to the-remote location and inaccessibility of the site, site inspections

PART V Page 49 of 52 Permit No. SC0002925 three at appropriate intervals specified in the plan, but, in no case less than once in be conducted (3) years.

for Spill pollution prevention plans may reflect requirements

5. Consistency with other plans Storm water 311 of the Control and Countermeasure (SPCC) plans developed for the facility under section Prevention permit for the or Best Maanagement Practices (BMP) Programs otherwise required by an NPDES CWA into the storm water pollution prevention plan.

facility as long as such requirement is incorporated associated with industrial activity from facilities Additional requirements for storm water discharges 16.C. 1 6.

Title III. Section 313 requirements. In addition to the requirements of Parts V.

subject to SARA facilities subject to storm water pollution prevention plans for through 4 and other applicable conditions, as 'Section requirements under SARA Title III, Section 313 for chemicals which are classified reporting shall describe with the definition in Part L.H of this permit, 313 water priority chemicals' in accordance with the the implementation of practices which are necessary to provide for conformance and ensure following guidelines:

handled, where Section 313 water priority chemicals are stored, processed or otherwise

a. In areas provided. At a and/or diversionary structures shall be appropriate containment, drainage control or its equivalent shall be used:

minimum, one of the following preventive systems the gutters, sewers or other forms of drainage control to prevent or minimize (1) Curbing, culverting, contact with significant sources of pollutants; or potential for storm water run-on to come into to covers or other forms of appropriate protection to prevent storage piles from exposure (2) Roofs, storm water, and wind.

water pollutiQn to the minimum standards listed under Part V.16.C.6.a (above), the storm

b. In addition with the following discussion of measures taken to conform prevention plan shall include a complete applicable State guidelines, other effective storm water pollution prevention procedures, and applicable rules, regulations and guidelines:

equip mert tank (1) d areas where storm water comes into contact with any priority chemicals.

conta'ier, or other vessel used for Section 313 water storage of a Section 313 water priority chemical (a) No tank or container shall be used for the conditions of compatible with the material stored and unless its material and construction are storage such as pressure and temperature, etc.

to minimize water priority chemicals shall be operated (b) Liquid-storage areas for Section 313 measures to minimize discharges of discharges of Section 313 chemicals. Appropriate containment provided for at least the entire Section 313 chemicals may include secondary freeboard to allow for precipitation, a strong contents of the largest single tank plus sufficient other equivalent measures.

spill contingency and integrity testing plan, and/or

PART V Page 50 of 52 Permit No. SC0002925 than liquids. Material (2) Material storage areas for Section 313 water priority chemicals other liquids which are subject to storage areas for Section 313 water priority chemicals other than features which will minimize runoff, leaching, or wind shall incorporate drainage or other control water contact with Section the discharge of Section 313 water priority chemicals by reducing storm 313 water priority chemicals.

Section 313 water priority (3) Truck and rail car loading and unloading areas for liquid Section 313 water priority chemicals. Truck and rail car loading and unloading areas for liquid 313 water priority chemicals.

chemicals shall be operated to minimize discharges of Section may include: the placement Appropriate measures to minimize discharges of Section 313 chemicals collected in the drip pans) and maintenance of drip pans (including the proper disposal of materials and filler nozzles) for use when where spillage may occur (such as hose connections, hose reels integrity testing plan; and/or making and breaking hose connections; a strong spill contingency and other equivalent measures.

(4) Areas where Section 313 water priority chemicals are transferred, processed or otherwise shall be operated so as to handled. Processing equipment and materials handling equipment used in piping and minimize discharges of Section 313 water priority chemicals. Materials process and materials equipment shall be compatible with the substances handled. Drainage from 313 water priority chemicals.

handling areas shall minimize storm water contact with section wind, spraying or releases Additional protection such as covers or guards to prevent exposure to priority chemicals to the from pressure relief vents from causing a discharge of Section 313 water ends at truck loading/unloading drainage system, and overhangs or door skirts to enclose trailer tests shall be provided for docks shall be provided as appropriate. Visual inspections or leak secondary containment.

overhead piping conveying Section 313 water priority chemicals without (3) or (4).

(5) Discharges from areas covered by paragraphs (1), (2),

or (4) of this part should be (a) Drainage from areas covered by paragraphs (1), (2), (3) of a spill or other restrained by valves or other positive means to prevent the discharge containment units are excessive leakage of Section 313 water priority chemicals.. Where these shall be manually employed, such units may be emptied by pumps or ejectors; however, activated.

areas. Valves used for the (b) Flapper-type drain valves shall not be used to drain containment manual, open-and-closed drainage of containment areas should, as far as is practical, be of design.

of all in-facility storm (c) If facility drainage is not engineered as above, the final discharge could, in the event of sewers shall be equipped to be equivalent with a diversion system that spilled material to the an uncontrolled spill of Section 313 water priority chemicals, return the facility.

volume (in gallons) of discharges from (d) Records shall be kept of the frequency and estimated containment areas.

PART V Page 51 of 52 Permit No. SC0002925 (6) Facility site runoff other than from areas covered bor 4 Other which may areas containof Section 313 the facility (3) or (4)), from which runoff (1), (2), discharge shall (those not addressed in paragraphs of Section 313 water priority chemicals could cause a water priority chemicals or spills to prevent discharge of spilled or improperly or other control features incorporate the necessary drainage of pollutants in runoff or leachate.

and ensure the mitigation disposed material at specific All areas of the facility shall be inspected mantennce and ouskee~fl~ of Section31wae (7) revntiv conditions that could lead to discharges intervals identified in the plan for leaks or water with raw materials, intermediate materials, waste of storm vessels,

() priority chemicals or direct contact facility piping, pumps, storage tanks and bins, pressure for any materials or pioducts. In particular, and material bulk storatge areas shatll be examined equipment, for leaks, wind process and material handling cause a discharge. Inspection shall include examination could containment.

conditions or failures which failure, or other forms of deterioration or non- experience.

or foundation and operational blowing, corrosion, support in the plan and shall be based on design is discovered be specified Inspection intervals shall inspection intervals. Where a leak or other condition Different areas may requite different 313 water priority chemicals to the drainage system, which may result in significanft releases of Section unit or process shut down until corrective action can be taken or the has occurred, corrective action shall be immediately of a Section 313 water priority chemical with taken. When a leak or non-contaiflm~ent must be promptly removed and disposed in accordance other material contaminated soil, debris, or and local requirements and as described in the plan.

Federal, State, or intentional have the necessary security systems to prevent accidental (8) .Facility security. Facilities traffic shall control, jnvsecuring equipment ofsystems described in the plan shall address fencing, and buildings.

lighting, vehicular a discharge. Security

__ entry which could cause personnel that work in areas where SARA Title III, Section contractor (9) Tra ng. Facility employees and but not less than once shall be conducted at intervals specified in the plan, of preventive measures preventionat the facility. Employee training be trained in and in informed the storm water pollution use or stored are control laws andshallregulations, and 313 matterschemicals waterinpriority per year, of pollution discharges which are designed to minimize for spill of the facility and its operation plan and the particular features who is accountable The plan shall designate a person procedures and reporting of Section 313 water priority chemicals. emergency honwil s l etup necessary spill prevention ate the facility and w releases of Section 313 water priority chemicals can be isolated requirements so that spills and emergency 313 water priority chemical can occur. Contractor or of a Section prevent and contained before a discharge of facility operation and design features in order to be informed temporary personnel shall water pollution prevention plan for a facility subject to SARA The storm water priority or spillsCIrticua.

terials

() *discharges from occurring.

for chemicals which are classified as 'Section 313 Title III, Section 313 requirements a Professional South Carolina Registered EngineerRegistered Professional in the State Carolina shall of SouthEngineer and chemical s shall be such reviewed Professional by Engineer. A are certified to by modifications years thereafter or as soon as practicable after significant the facility and recertify the plan every three of these certifications, the engineer, having examined plan By means made to the facility.

n oth is part, shall attest that the storm water pollution prevention being familiar with the provisio in no way with good engineering practices. Such certifications shall has been prepared in accordance

PART V Page 52 of 52 Permit No. SC0002925 by the plan of their duty to prepare and fully implement relieve the owner or operator of a facility covered such plan or other impoundments with a retention period greater

7. Sample Type For discharges from holding ponds the detention pond by the estimated volume of water than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, (estimated by dividing the volume of that the sample is collected) a minimum of one grab discharged during the 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> previous to the time from the discharge resulting from a storm event sample may be taken. All such samples shall be collected and that occurs at least 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from the previously that is greater than 0.1 inches in magnitude the first event. The grab sample shall be taken during measurable greater than 0.1 inch rainfall) storm of a grab sample during the first thirty (30) minutes thirty (30) miautes of the discharge. If the collection discharger during the first hour of the discharge, and the is impracticable, a grab sample can be taken of why a grab sample during the first thirty (30) shall submit with the monitoring report a description of must be collected and analyzed for the determination minutes was impracticable. Grab samples only pH, and oil and grease.

the to collect samples due to adverse climatic conditions,

8. Sampling Waiver When a discharger is unable a description of why samples could not be collected, discharger must submit in lieu of sampling data the Adverse climatic conditions which may prohibit including available documentation of the event. (such as that create dangerous conditions for personnel collection of samples includes weather conditions collection electrical storms, etc.) or otherwise make the local flooding, high winds, hurricane, tornadoes, from frozen conditions, etc.). Dischargers are precluded of a sample impracticable (drought, extended a two (2) year period.

exercising this waiver more than once during of two (2) or more outfalls that, based on a consideration

9. Representative Discharge When a facility has the area drained management practices and activities within industrial activity, significant materials, and permittee discharge substantially identical effluents, the by the outfall, the permittee reasonably believes to the the effluent of one of such outfalls and report that the quantitative data also applies may test representative, an identical outfalls. In addition, for each outfall that the permittee believes is substantially coefficient of the square feet) and an estimate of the runoff estimate of the size of the drainage area (in shall be area (e.g. low (under 40 percent), medium (40 to 65 percent) or high (above 65 percent))

drainage provided in the plan.

10. Monitoring Requirements from any other point source other than Outfall

a. For any stormwater from the facility discharged to monitor for: oil and grease (mg/I), pH, TSS 001 or Outfall 011, the permittee is required and total recoverable zinc 1), total recoverable copper (mg/1), total recoverable nickel (mg/l),

(mg/

and shall be per occurrence, but needed not be (mg/I). The monitoring shall be by grab sample more than once per year.

than discharged from any other point source other

b. Any stormwater associated with coal pile runoff oil and grease (mg/I), pH, TSS (mg/l), total Outfall 002 shall be monitored semi-annually for:

nickel (mg/1), and total recoverable zinc (mg/I).

recoverable copper (mg/l), total recoverable