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HomeMy WebLinkAboutNCG500369_Complete File - Historical_20171231 SOC PRIORITY PROJECT: NO To: Permits and Engineering Unit Water Quality Section Attention: Mack Wiggins Date: September 24, 1998 NPDES STAFF REPORT AND RECOMMENDATIONS County: Cabarrus NPDES Permit No.: NCG500369 MRO No.: 98-076 PART I- GENERAL INFORMATION 1. Facility and Address: Willis Hosiery Mills, Inc. Post Office Box 407 Concord,North Carolina 28025 2. Date of Investigation: September 17, 1998 3. Report Prepared By: Charley Schwartz, Environmental Engineer 4. Person(s) Contacted and Telephone Number: Ms. Suzanne Cook Howard and Mr. James Stone at(704)782-4155. 5. Directions to Site: 184 Academy Avenue NW, Concord, Cabarrus County,NC. In the northeast corner of the intersection of Ann Street NW and Academy Avenue NW. 6. Discharge Point(s), List for all discharge Points: - Latitude: 35° 24' 43" Longitude: 80° 35' 33" Attach a USGS Map Extract and indicate treatment plant site and discharge point on map. USGS Quad No.: F16NE 7. Site size and expansion area consistent with application: The facility is located in a heavily developed area with no room for expansion. 8. Topography(relationship to flood plain included): The boiler blowdown area is approximately 250 feet from the receiving stream with a slope towards the stream of 10- 15%. Mr. James Stone indicated that flood waters are generally confined to within 15-20 feet of the established stream channel. 9. Location of Nearest Dwelling: Approximately 100-125 feet from the discharge point. 10. Receiving Stream or Affected Surface Waters: Unnamed tributary to Irish Buffalo Creek a. Classification: C b. River Basin and Subbasin No.: Yadkin 03-07-12 c. Describe receiving stream features and pertinent downstream uses: The receiving stream flows through mixed industrial and residential areas for a mile before intercepting Irish Buffalo Creek. The stream was approximately 3-5 feet wide and 3-6 inches deep with good flow at the time of inspection. Minnows and other aquatic life were observed in abundance around and immediately downstream of the discharge point. PART II-DESCRIPTION OF DISCHARGE AND TREATMENT WORKS 1. a. Volume of Wastewater: 50 gallons/day(GPD) (Design Capacity) b. What is the current permitted capacity: None c. Actual treatment capacity of current facility(current design capacity): 50 GPD d. Date(s) and construction activities allowed by previous ATCs issued in the previous two years: N/A e. Description of existing or substantially constructed WWT facilities: City water is first collected in a 1,000 gallon(approximate volume) above ground storage tank (AST). While in the AST, various chemicals are added to the water(Sodium Hydroxide, BL 171, BL 1541, BL 1347 & Caustic Soda). The water and chemical solution is heated before being pumped into the boiler unit. Approximately three times a day, the water/steam in the boiler is purged and discharged into a storm sewer. The boiler blowdown water mixes with spring water that also flows through the storm sewer, and travels approximately 300 feet before discharging into the receiving stream. f. Description of proposed WWT facilities: No additional treatment units are proposed at the facility. g. Possible toxic impacts to surface waters: There are no toxic impacts expected, however, the Biocide 101 form needs to be completed for the permit. h. Pretreatment Program (POTWs only): Not Needed. 2. Residual handling and utilization/disposal scheme: Scalings and other solids accumulate at the bottom of the boiler. These solids are removed twice a year and disposed of on the ground behind the plant. This disposal practice has been referred to Rick Doby of the Solid Waste Section to determine whether it is appropriate. 3. Treatment Plant Classification: N/A 4. SIC Code(s): 2251 Wastewater Code(s): 16 5. MTU Code(s): N/A PART III - OTHER PERTINENT INFORMATION 1. Is this facility being constructed with Construction Grant Funds or are any public monies involved (municipals only)? No 2. Special monitoring or limitations (including toxicity)requests: Obtaining a representative sample of the boiler blowdown water at the discharge point will be difficult. While the effluent is intermittent from the boiler(three times a day when blowdown occurs), flow at the discharge point is constant due to spring flow in the storm sewer. Therefore, the permittee needs to ensure that the waste stream is monitored while the boiler blowdown is discharging. 3. Important SOC/JOC or Compliance Schedule dates: N/A 4. Alternative Analysis Evaluation a. Spray Irrigation: Insufficient area at the facility for spray irrigation. b. Connect to regional sewer system: Sewer system access is available, however, the current treatment system would have to be altered and the company would incur ongoing costs for disposal into the sewer system. c. Subsurface: Insufficient area at facility. d. Other disposal options: N/A PART IV-EVALUATION AND RECOMMENDATIONS The boiler blowdown unit has been operating and discharging into the receiving stream since 1986 (it is not a new system). The receiving stream appeared to be in excellent condition with several minnows observed around the discharge point. Chemicals are added to city water prior to entering the boiler unit,therefore a Biocide 101 form should be reviewed prior to issuance of the permit. The primary concern to the receiving stream appears to be temperature. The only mechanisms reducing the temperature of the boiler blowdown,which is a steam/water mixture, to permitted levels is exposure to atmoshperic conditions and dilution with spring water for 300 feet in a storm sewer. It is imperative that the discharge be monitored as the blowdown water is entering the stream. It is recommended that the NPDES Permit be approved. Crp �tB Signature of Report Preparer D e D, '4_1 a7 Water Quality Regioiaal Supervisor Date h:\\npdes\wi Ihos.dsr id i'''/.15� > n • i�i o l i \ ..--\-/ 7 ,‘,,,,,_,(-7,A. . _ prir- Funderburks i :.: ` r• ���.,;\ /�h _• ec�jjf k. landing.. 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I `;T 600000 II? % \s r � Tferfo3� , FEET 650 k o�� � r _ LJ� � 7_ — a L.... , ,:___., .. .. LI'.. ) , 40,i a r ,z:)_))1)111,-::. .%' '-'-,;•:- ' 8--7\- • ___ -1--:--", , ," ..v, s:...7"::_-: .-. ':,-..5.1,---::::7.4.; ("P-94'-k.,.,1. c/!----1,40.(---,,w/ r.. ______.. -- 3.6",% (''' \ - - , - '7:1:7-7-- -- - ark`� C. moo �� . I, C:_____t€ 3915 c S bstation •/ ��� • r 7' . ,0 ( ' Coney ' i , , c' „‘l 1 `---.,_ i"' _ 1 OIIF \ �f o i \J �-sc _ _ 35°22'30"+- - 535 1 520 000 FEET 536 9"-, 37 80°t7'30" � Geological Survey 1 Mapped, edited, and published by the 0JIA Control by USGS, USC&GS,and North Carolina Geodetic Survey IANi 9-\ ‘'y ON �sl,� Topography by photogrammetric methods from aerial i �P" photographs taken 1965. Field checked 1969 Supersedes map dated 1948 5l&" I 0.15_ 98 MILSI\I4 MILS Polycon,c projection. 1927 North American datum 10.000-foot grid based on North Carolina coordinate system 1000-meter Universal Transverse Mercator grid ticks, :one 17. shown in blue lith.dia000111111‘ � O NORTH :',. s •-P C 1 the predicted North Amerir-a., her,,.., -1 0524 OTM GRID AND 1987 MAGNETIC State of North Carolina9 Department of Environment, G , and Natural Resources i t j;CAT r;7.1rA Division of Water Quality t .................._'I I r James B. Hunt, Jr., Governor v�' Wayne McDevitt, Secretary b A. Preston Howard, Jr., P.E., Director D E VR > TaONma T, ultA1-1r11 September 1, 1998 or NATURAL ;;NOU R( g SEP n 1998 Ms. Suzanne Cook Howard, V.P pg� of €±�4 xrmar;Vrt Willis Hosiery Mills, Inc. ts: ilU *AVM 6FFIrF PO Box 407 Concord,North Carolina 28025 Subject: NPDES General Permit Application Application Number NCG500369 Willis Hosiery Mills, inc. Cabarrus County Dear Ms. Howard: This is to acknowledge receipt of the following documents on August 17, 1998: X Completed Notice of Intent (Application Form), Engineering Proposal (for proposed control facilities), Request for permit renewal, Application processing fee of Engineering Economics Alternatives Analysis, Engineering Plans and Specifications Local Government Signoff, Source Reduction and Recycling, _ Interbasin Transfer, X Other: Site drawing. Application fee of$400.00 was paid on 8/26/98. The items checked below are needed before review can begin: Completed Notice of Intent (Application Form), Engineering proposal (see attachment), Application Processing Fee of$, Delegation of Authority (see attached), Biocide Sheet (see attached), Engineering Economics Alternatives Analysis, Engineering Plans and Specifications Local Government Signoff, Source Reduction and Recycling, _ Interbasin Transfer, Other: If the application is not made complete within thirty (30) days, it will be returned to you and may be resubmitted when complete. P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-0719 An Equal Opportunity Affirmative Action Employer 50% recycled/10%post-consumer paper This application has been assigned to Mack Wiggins (919/733-5083) Ext. 542 of our Permits Unit for review. You will be advised of any comments, recommendations, questions or other information necessary for the review of the application. I am, by copy of this letter, requesting that our Regional Office Supervisor prepare a staff report and recommendations regarding this discharge. If you have any questions regarding this application, please contact the review person listed above. Sincerely, ,i( . — Ma Wig ins St water and Gener , `•rmits Unit cc: ermit Application i e it '4, ir, 1 rk `h j • yv A; t I. , ..,. ,...., ,,,.. .I ..ftr4,11) 1:51 tf7.71 • State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management 512 North Salisbury Street • Raleigh,North Carolina 27611 James G. Martin,Governor A.Preston Howard,Jr.,P.E. William W. Cobey,Jr., Secretary Acting Director NOTICE OF INTENT National Pollutant Discharge Elimination System Application for Coverage under General Permit NCG500000;Non-contact cooling water,boiler blowdown, cooling tower blowdown,condensate,and similar point source discharges. 1. Name,Address,location,and telephone number of facility requesting Permit. A. Official Name: \iviIiib Hotre rt 11tr 115 , ihG. B. Mailing Address: Po (3o x q O"1 " (1)S treet Address; I tS 4 AteAd e rem td A d e. iJ U) (2)City; Cv nCo r (3)State; Jrch ru 1 i nAr (4)Zip; NSv A S (5)County; C. Location.(Attach map delineating general facility location) (1)StreetAddress; )/3 rn1; (2)City; (3)Sratr; (4)County; • D. Telephone Number; ('?D LI ) '71{2 - y(r S 2. Facility Contact A. Name; t,lz/-tf1 Yl€ eOok H-O J4-12D B. Title; V.p C. Company Name; W;Ili s I-}os: cri !1, 11s I tIIC, D. Phone Number, ( 5Prrne, ) Exf_ I ( 1 3.� Application type(check appropriate sele/on): New or Proposed; ✓ B. Existing; If previously permitted, provide permit number and issue dale C. Modification; (Describe the nature of the modification): 4. Description of discharge A.Pleas9 start.the number of separate discharge points. 1,(i ; 2,[l ; 3,[l ; 4,[] ; _,[l• B.Please de-scribe the amount of wastewater being discharged per each separate discharge point 1: -co gallons per daY(gpd) 2L (gpd) 3: (gpd) 4: (gpd) Page 1 C.Check the duration and frequency of the discharge,per each separate discharge point: 1. Continuous: 2. Intermittent (please describe): i3t �j 1 ;ir_.^ L fig;.- (L 3. Seasonal(check month(s)the discharge occurs):January[];February[];March[];April[], May[];June[];July[];,August[];September[];October[];November[];December[ 4. How many days per is there a discharge?(check the days the discharge occurs) Monday Pr-Tuesday[Wednesday rr Thursday M Priday['1awrday[], Sunday[,]. 5. How much of the volume discharged is treated?(state in percent) 0% D. What type of wastewater is discharged,per separate discharge point(place check next to correct type): 1. Non-contact cooling water, 2. Boiler blowdown; 3. Cooling tower blowdown; 4. Condensate; 5. Other(please describe); Please list any known pollutants that are present in the discharge, per each separate discharge point(if applicable): E. Please describe the type of process the cooling water is being discharged from,per separate discharge point (i.e.compressor,boiler blowdown,cooling tower blowdown,air conditioning unit,etc.): F. Please check the type of chemical added to the wastewater for treatment or other,per separate discharge point: . 1. Biocides; s'' 2. Corrosion inhibitors; 3. Chlorine; 4. Algae control; 5. Other(please describe); 6. None; If 1,2,3,4,or 5 was checked,please state the name and manufacturer of the chemical additive. Also include a completed Biocide 101 form,and manufacturers'information on the additive with the application for the Division's review. G. Is there any type of treatment being provided to the wastewater before discharge (i.e. retention ponds, settling ponds, etc.); if yes, please describe. Give design specifics (i.e. design volume, retention time, surface area, etc.). Existing treatment facilities should be described in detail and design criteria or operational data should be provided(inclu4ing calculations) to ensure that the facility can comply with requirements of the General Pennit 414mi er NOTE: Construction of any wastewater treatment facilities require submission of three (3) sets of plans and specifications along with their application. Design of treatment facilities must comply with requirement 15A NCAC 2H .0138. If construction applies to the discharge, include the three sets of plans and specifications with the application. 5. What is the nature of the business applying for this permit? ;7OSr e/'y 71N-4 o'w` 6. Name of receiving water. Classification: (Attach a USGS topographical map with all discharge point(s)clearly marked) Page 2 pp- 7. Is the discharge directly to the receiving water?(Y,N)_ If no, state specifically the discharge point. Mark clearly the pathway to the potential receiving waters on the site map. (This includes tracing the pathway of the storm sewer to its discharge point,if a storm sewer is the only viable means of discharge_) 8. Please address possible non-discharge alternatives for the following options: A.Connection to a Regional Sewer Collection System; ` B.Subsurface Disposal; . C.Spray Irrigation; . 9. I certify that I am familiar with the information contained in the application and that to the best of my knowledge and belief such information is true,complete,and accurate. //�� � Printed Name of Person Signing 314-z"nne LSDo11 L AoWAr b Title i7 �? Date Application Signed 7 3 O • 9 Y , Signature of Applicant NORTH CAROLINA GENERAL STATUTE 143-215.6B (il OVIDES THAT: Any person who knowingly makes any false statement,representation,or certification in any application,record, report,plan or other document filed or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article,or who falsifies,tampers with or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed$10;000,or by imprisonment not to exceed six months,or by both. (18 U.S.C. Section 1001 provides a punishment by a fine of not more than$10,000 or imprisonment not more than 5 years,or both,for a similar offense.) Notice of Intent must be accompanied by a check or money order for S400.00 made payable to the North Carolina Department of Environment,Health,and Natural Resources. Mail three(3)copies of entire package to: Division of Environmental Management NPDES Permits Group Post Office Box 29535 Raleigh,North Carolina 27626-0535 Page 3 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES DIVISION OF WATER QUALITY GENERAL PERMIT NO. NCG500000 TO DISCHARGE NON-CONTACT COOLING WATER, COOLING TOWER AND BOILER BLOWDOWN, CONDENSATE, EXEMPT STORMWATER, COOLING WATERS ASSOCIATED WITH HYDROELECTRIC OPERATIONS, AND SIMILAR WASTEWATERS UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, this permit is hereby issued to all owners or operators, hereafter permittees, which are covered by this permit as evidenced by receipt of a Certificate of Coverage by the Environmental Management Commission to allow the discharge of wastewater in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I,II,III and IV hereof. This permit shall become effective August 1, 1997. This permit shall expire at midnight on July 31, 2002. • ""d14 Date: 7_ 4. "19 A. Preston Howard,Jr.,P.E.,lrirector Division of Water Quality By Authority of the Environmental Management Commission A(1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL Permit No. NCG500000 During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge non-contact cooling water,cooling tower and boiler blowdown,air compressor condensate and similar wastewaters from outfalls numbered serially beginning with 001 (specific outfall numbers shall be assigned by the permittee). Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Weekly Daily Measurement Sample Sample Average Average Maximum Frequency Type Location Flow Semi-annually Estimate Effluent Temperature I 1 Semi-annually Grab Effluent Total residual chlorine' 2 2 Semi-annually Grab Effluent Oil and Grease' Semi-annually Grab Effluent 1: The temperature of the effluent will be regulated so that the temperature of the receiving stream does not increase more than: Fresh water classifications 2.8°C above the natural water temperature. Receiving water temperature shall not exceed a maximum of 29°C for mountain and upper piedmont waters. Receiving water temperature shall not exceed a maximum of 32°C for lower piedmont and coastal plain waters. Trout water classifications 0.5°C above the natural water temperature. Receiving water temperature shall not exceed a maximum of 20°C for trout waters. Salt water classifications 0.8°C above the natural water temperature during the months of June,July and August. 2.2°C above the natural water temperature during any other months. Receiving water temperature shall not exceed a maximum of 32°C for salt waters. 2: Monitoring requirements apply only if chlorine is added to the treatment system. Discharges into Trout waters will be required to meet a daily maximum discharge limitation of 17 vigil of Total Residual Chlorine 3: Monitoring requirement applies only for discharges of air compresser condensate. The permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge. The permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additonal additive in the discharge which may be toxic to aquatic life (other than additives previously approved by the Division). Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for the additive and a map indicating the discharge point and receiving stream. There shall be no chromium, zinc or copper added to the discharge except as pre-approved additives to biocidal compounds. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units for fresh water classifications. The pH shall not be less than 6.8 standard units nor greater than 8.5 standard units for salt water classifications. • There shall be no discharge of floating solids or visible foam in other than trace amounts. A(2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NCG500000 • FOR HYDROELECTRIC FACILITIES . During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge once-through cooling waters(including generator cooling water,generator thrust bearing cooling water, turbine guide cooling water& transformer cooling water) and other similar waters associated with hydroelectric facilities from from outfalls numbered serially beginning with 001 (specific outfall numbers shall be assigned by the permittee). Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Weekly Daily Measurement Sample Sample Average Average Maximum Frequency Type _ Location Flow Semi-annually Estimate Effluent Temperature' ' ' Semi-annually Grab Effluent 1: The temperature of the effluent will be regulated so that the temperature of the receiving stream does not increase more than: Fresh water classifications 2.8°C above the natural water temperature. Receiving water temperature shall not exceed a maximum of 29°C for mountain and upper piedmont waters. Receiving water temperature shall not exceed a maximum of 32°C for lower piedmont and coastal plain waters. Trout water classifications 0.5°C above the natural water temperature. Receiving water temperature shall not exceed a maximum of 20°C for trout waters. The permittee shall obtain'authorization from the Division prior to the use of any chemical additive in the discharge. The permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additonal additive in the discharge which may be toxic to aquatic life (other than additives previously approved by the Division). Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for the additive and a map indicating the discharge point and receiving stream. There shall be no chromium, zinc or copper added to the discharge except as pre-approved additives to biocidal compounds. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent. A(3). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL Permit No. NCG500000 FOR HYDROELECTRIC FACILITIES During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge waters from sumps & drains (including powerhouse sumps Sr drains,wheel pit drains, head cover drains and gallery sumps&drains)and other miscellaneous wastewaters(from sumps & drains associated with hydroelectric facilities) from outfalls numbered serially beginning with 001 (specific outfall numbers shall be assigned by the permittee). Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Weekly Daily Measurement Sample Sample Average Average Maximum Frequency Type Location Flow Quarterly Estimate Effluent Oil and Grease' 15 mg/L 20 mg/L Quarterly Grab Effluent 1: The tailrace shall be visually inspected for oil sheens when discharge occurs immediately after the lubrication of wicket gates (or other lubrication operations which might result in the discharge of oil and grease) at the hydroelectric facility. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pits occurs, the tailrace shall be inspected visually for foam and oil. Cleaning shall be conducted only with pre-approved solvents. Should the Permittee wish to change cleaning solvents,a written request should be made to the Division including the MSDS for the proposed solvent. Mechanical cleaning operations which do not contribute any wastewater to the discharge are not limited by this permit. Non-discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation. The permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge. The permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additonal additive in the discharge which may be toxic to aquatic life (other than additives previously approved by the Division). Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for the additive and a map indicating the discharge point and receiving stream. There shall be no chromium, zinc or copper added to the discharge except as pre-approved additives to biocidal compounds. There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent. General Permit NCG500000 PART I SECTION B. SCHEDULE OF COMPLIANCE 1. The permittee shall comply with Final Effluent Limitations by the effective date of the Certificate of Coverage. 2. Permittee shall at all times provide the operation and maintenance necessary to operate the existing facilities in accordance with Part II.C.2 of this permit. PART II STANDARD CONDITIONS FOR NPDES PERMITS SECTION A. DEFINITIONS 1. Permit Issuing Authority: The Director of the Division of Water Quality. 2. DWQ or Division: Division of Water Quality, Department of Environment, Health and Natural Resources. 3. EMC: North Carolina Environmental Management Commission. 4. Permittee: The entity who obtains coverage under this general permit by subsequent issuance of a "Certificate of Coverage" by the Division of Water Quality. 5. Act or "the Act": The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended,33 USC 1251,et.seq. 6. Concentration Measurements a. Average Monthly Concentration: The sum of the concentrations of all daily discharges sampled and/or measured during a calendar month an which daily discharges are sampled and measured, divided by the number of daily discharges sampled and/or measured during such month (arithmetic mean of the daily concentration values). The daily concentration value in the case of grab samples is the arithmetic mean (weighted by flow value) of all the samples collected during that calendar day b. Maximum Daily Concentration: The concentration of a pollutant discharge during a calendar day. If only one sample is taken during any calendar day the concentration of pollutant calculated from it is the "Maximum Daily Concentration". It is identified as "Daily Maximum" under "Other Units" in Part I of the permit. 7. Other Measurements a. Average Flow (MGD): The 24 hours average flow, averaged monthly. It is determined as the arithmetic mean of the total daily flows recorded during the calendar month. b. Instantaneous Flow Measurement: A measure of flow taken at the time of sampling, when both the sample and flow will be representative of the total discharge. c. Continuous Flow Measurement: A measure of discharge flow from the facility which occurs continually without interruption throughout the operating hours of the facility. Flow shall be monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance activities on the flow device. Page 1 of 10 General Permit NCG500000 8. Grab Samples: Individual samples of at least 100 ml collected over a period of time not exceeding 15 minutes. Grab samples can be collected manually. 9. Calculation of Means a Arithmetic Mean: The summation of the individual values divided by the number of individual values. b. Geometric Mean: The Nth root of the product of the individual values where N is equal to the number of individual values. The geometric mean is equivalent to the antilog of the arithmetic mean of the logarithms of the individual values. For purposes of calculating the geometric mean, values of zero (0) shall be considered to be one(1). c. Weighted by Flow Value: The summation of each concentration times its respective flow divided by the summation of the respective flows. 10. Calendar Day: The period from midnight of one day until midnight of the next day. However, for purposes of this permit,any consecutive 24-hour period that reasonably represents the calendar day may be used for sampling. 11. Hazardous Substance: Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the Clean Water Act. 12. Toxic Pollutant: Any pollutant listed as toxic under Section 307(a)(1) of the Clean Water Act. 13. Bypass: The known diversion of waste streams from any portion of a treatment facility (including the collection system), which is not a designed or established or operating mode for the facility. 14. Severe property damage: Substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production. 15. Upset: An exceptional incident in which there is unintentional and temporary noncompliance with technology-based permit effluent limitations because of factors beyond the reasonable control of the permittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation. SECTION B. GENERAL CONDITIONS 1. Duty to Comply The permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of the Clean Water Act and is grounds for enforcement action; for permit termination, revocation and reissuance, or modification; or denial of a permit renewal application. a. The permittee shall comply with effluent standards or prohibitions established under section 307(a) of the Clean Water Act for toxic pollutants and with standards for sewage sludge use or disposal established under section 405(d) of the Clean Water Act within the time provided in the regulations that establish these standards or prohibitions, even if the permit has not yet been modified to incorporate the requirement. b. The Clean Water Act provides that any person who violates a permit condition is subject to a civil penalty not to exceed $25,000 per day for each violation. Any person who negligently violates any permit condition is subject to criminal penalties of $2,500 to $25,000 per day of violation, or imprisonment for not more than 1 year,or both. Any person who knowingly violates permit conditions is Page 2 of 10 General Permit NCG500000 subject to criminal penalties of$5,000 to$50,000 per day of violation,or imprisonment for not more than 3 years,or both. Also, any person who violates a permit condition may be assessed an administrative penalty not to exceed $10,000 per violation with the maximum amount not to exceed $125,000. [Ref: Section 309 of the Federal Act 33 U.S.C. 1319 and 40 CFR 122.41 (a)]. c. Under state law, a daily civil penalty of not more than ten thousand dollars ($10,000) per violation may be assessed against any person who violates or fails to act in accordance with the terms,conditions, or requirements of a permit. [Ref: North Carolina General Statutes § 143-215.6 (A)]. 2. Duty to Mitigate The permittee shall take all reasonable steps to minimize or prevent any discharge in violation of this permit. 3. Civil and Criminal Liability Except as provided in permit conditions on"Bypassing" (Part II, C.4.) and "Power Failures" (Part II, C.7.), nothing in this permit shall be construed to relieve the permittee from any responsibilities, liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3,143-215.6 or Section 309 of the Federal Act, 33 USC 1319. Furthermore, the permittee is responsible for consequential damages, such as fish kills, even though the responsibility for effective compliance may be temporarily suspended. 4. Oil and Hazardous Substance Liability Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities, liabilities, or penalties to which the permittee is or may be subject to under NCGS 143-215.75 et seq. or Section 311 of the Federal Act,33 USG 1321. Furthermore, the permittee is responsible for consequential damages, such as fish kills, even though the responsibility for effective compliance may be temporarily suspended. 5. Property Rights The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive privileges,nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal, State or local laws or regulations. 6. Onshore or Offshore Construction This permit does not authorize or approve the construction of any onshore or offshore physical structures or facilities or the undertaking of any work in any navigable waters. 7. Severability The provisions of this permit are severable, and if any provision of this permit, or the application of any provision of this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the remainder of this permit, shall not be affected thereby. 8. Duty to Provide Information The permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the Permit Issuing Authority may request to determine whether cause exists for modifying, revoking and reissuing,or terminating this permit or to determine compliance with this permit. The permittee shall also furnish to the Permit Issuing Authority upon request, copies of records required to be kept by this permit. 9. Duty to Reapply If the permittee wishes to continue an activity regulated by this permit after July 31, 2002, the permittee must apply for and obtain a new permit. Page 3 of 10 General Permit NCG500000 • - • 10. Permit Termination After public notice and opportunity for a hearing, the general permit and Certificates of Coverage issued under this general permit may be terminated for cause. 11. When an Individual Permit may be Required The Division may require any owner authorized to discharge under this permit to apply for and obtain an individual permit. Cases where an individual permit may be required include,but are not limited to, the following: a. The discharger is a significant contributor of pollution. b. Conditions at the operating facility change altering the constituents and/or characteristics of the discharge such that the discharge no longer qualifies for a General Permit. c. The discharge violates the terms or conditions of this permit. d. A change has occurred in the availability of demonstrated technology or practices for the control or abatement of pollutants applicable to the point source. e. Effluent limitation guidelines are promulgated for the point sources covered by this permit. f. A water quality management plan containing requirements applicable to such point sources is approved after the issuance of this permit. This permit may be terminated as to an individual owner for any of the reasons set forth above after appropriate notice in accordance with N.C.G.S. 143-215.1. 12. When an Individual Permit may be Requested Any permittee operating under this permit may request to be excluded from coverage by applying for an individual permit. When an individual permit is issued, the applicability of this general permit is automatically terminated on the effective date of the individual permit. 13. Signatory Requirements All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified. a. All permit applications shall be signed as follows: (1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible corporate officer means: (a) a president,secretary,treasurer or vice president of the corporation in charge of a principal business function,or any other person who performs similar policy or decision making functions for the corporation,or(b)the manager of one or more manufacturing production or operating facilities employing more than 250 persons or having gross annual sales or expenditures exceeding 25 million (in second quarter 1980 dollars), if authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures. (2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively;or (3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or ranking elected official. b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be signed by a person described above or by a duly authorized representative of that person. A person is a duly authorized representative only if: (1) The authorization is made in writing by a person described above; (2) The authorization specified either an individual or a position having responsibility for the overall operation of the regulated facility or activity, such as the position of plant manager, operator of a well or well field, superintendent, a position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company. Page 4 of 10 General Permit NCG500000 (A duly authorized representative may thus be either a named individual or any individual occupying a named position.);and (3) The written authorization is submitted to the Permit Issuing Authority. c. Certification: Any person signing a document under paragraphs a. or b. of this section shall make the following certification: "I certify,under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,or those persons directly responsible for gathering the information, the information submitted is,to the best of my knowledge and belief,true,accurate,and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations." 14. Permit Actions This permit may be modified,revoked and reissued,or terminated for cause. The filing of a request by the permittee for a permit modification, revocation and reissuance,or termination,or a notification of planned changes or anticipated noncompliance does not stay any permit condition. 15. Permit Modification, Revocation and Reissuance.or Termination The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations contained in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina Administrative Code, Subchapter 2H .0100; and North Carolina General Statute 143-215.1 et. al. SECTION C. OPERATION AND MAINTENANCE OF POLLUTION CONTROLS 1. Certified Operator Pursuant to Chapter 90A-44 of North Carolina General Statutes, the permittee shall employ a certified wastewater treatment plant operator in responsible charge (ORC) of the wastewater treatment facilities. Such operator must hold a certification of the grade equivalent to or greater than the classification assigned to the wastewater treatment facilities. The permittee shall notify the Division's Operator Training and Certification Unit within thirty days of any change in the ORC status. 2. }'roper Operation and Maintenance The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems which are installed by a permittee only when the operation is necessary to achieve compliance with the conditions of the permit. 3. Need to Halt or Reduce not a Defense It shall not be a defense for a permittee in an enforcement action that it would have been necessary to h al t or reduce the permitted activity in order to maintain compliance with the condition of this permit. 4. Bypassing of Treatment Facilities a. Bypass not exceeding limitations. The permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the provisions of Paragraphs b. and c. of this section. Page 5 of 10 General Permit NCG500000 b. Notice (1) Anticipated bypass. If the permittee knows in advance of the need for a bypass, it shall submit prior notice, if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality and affect of the bypass. (2) Unanticipated bypass. The permittee shall submit notice of an unanticipated bypass as required in Part II, E. 5. of this permit. (24-hour notice). c. Prohibition of Bypass (1) Bypass is prohibited and the Permit Issuing Authority may take enforcement action against a permittee for bypass,unless: (a) Bypass was unavoidable to prevent loss of life,personal injury or severe property damage; (b) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate backup equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass which occurred during normal periods of equipment downtime or preventive maintenance;and (c) The permittee submitted notices as required under Paragraph b. of this section. (2) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse affects, if the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c. (1) of this section. 5. Upsets a. Effect of an upset. An upset constitutes an affirmative defense to an action brought for noncompliance with such technology based permit effluent limitations if the requirements of paragraph b. of this condition are met. No determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance,is final administrative action subject to judicial review. b. Conditions necessary for a demonstration of upset. A permittee who wishes to establish the affirmative defense of upset shall demonstrate, through properly signed,contemporaneous operating logs, or other relevant evidence that: (1) An upset occurred and that the permittee can identify the cause(s) of the upset; (2) The permitted facility was at the time being properly operated; and (3) The permittee submitted notice of the upset as required in Part II, E.5. (b) (2) of this permit. (4) The permittee complied with any remedial measures required under Part II,B. 2. of this permit. c. Burden of proof._ In any enforcement proceeding the permittee seeking to establish the occurrence of an upset has the burden of proof. 6. Removed Substances Solids, sludges, filter backwash, or other pollutants removed in.the course of treatment or control of wastewaters shall be disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant from such materials from entering waters of the State or navigable waters of the United States. The permittee shall comply with all existing federal regulations governing the disposal of sewage sludge. Upon promulgation of 40 CFR Part 503,any permit issued by the Permit Issuing Authority for the disposal of sludge may be reopened and modified,or revoked and reissued,to incorporate applicable requirements a t 40 CFR Part 503. The permittee shall comply with applicable 40 CFR Part 503 Standards for the Use and Page 6 of 10 • • General Permit NCG500000 Disposal of Sewage Sludge (when promulgated) within the time provided in the regulation, even if the permit is not modified to incorporate the requirement. The permittee shall notify the Permit Issuing Authority of any significant change in its sludge use or disposal practices. 7. Power Failures The permittee is responsible for maintaining adequate safeguards as required by DWQ Regulation, Title 15A, North Carolina Administrative Code, Subchapter 2H, .0124 Reliability, to prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means of alternate power sources,standby generators or retention of inadequately treated effluent. SECTION D. MONITORING AND RECORDS 1. Representative Sampling Samples collected and measurements taken, as required herein, shall be characteristic of the volume and nature of the permitted discharge. Samples collected at a frequency less than daily shall be taken on a day and time that is characteristic of the discharge over the entire period which the sample represents. All samples shall be taken at the monitoring points specified in this permit and, unless otherwise specified, before the effluent joins or is diluted by any other wastestream, body of water, or substance. Monitoring points shall not be changed without notification to and the approval of the Permit Issuing Authority. 2. Flow Measurements Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The devices shall be installed, calibrated and maintained to ensure that the accuracy of the measurements are consistent with the accepted capability of that type of device. Devices selected shall be capable of measuring flows with a maximum deviation of less than 10% from the true discharge rates throughout the range of expected discharge volumes. Non-contact cooling water flow which is monitored by pump logs(or meters)based on the manufacturer's pump curves shall not be subject to this requirement. 3. Test Procedures Test procedures for the analysis of pollutants shall conform to the EMC regulations published pursuant to NCGS 143-215.63 et. seq., the Water and Air Quality Reporting Acts, and to regulations published pursuant to Section 304(g), 33 USC 1314, of the Federal Water Pollution Control Act, as Amended, and Regulation 40 CFR 136. To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection and reporting levels that are below the permit discharge requirements and all data generated must be reported down to the minimum detection or lower reporting level of the procedure. If no - approved methods are determined capable of achieving minimum detection and reporting levels below permit discharge requirements, then the most sensitive (method with the lowest possible detection and reporting level)approved method must be used. 4. Penalties for Tampering The Clean Water Act provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any monitoring device or method required to be maintained under this permit shall, upon conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. 5. Records Retention The permittee shall retain records of all monitoring information, including all calibration and maintenance records and all original strip chart recordings for continuous monitoring instrumentation, copies of a 11 reports required by this permit,for a period of at least 3 years from the date of the sample, measurement, report or application. This period may be extended by request of the Director at any time. Page 7 of 10 General Permit NCG500000 6. Recording Results For each measurement or sample taken pursuant to the requirements of this permit, the permittee shall record the following information: a. The date,exact place,and time of sampling or measurements; b. The individual(s)who performed the sampling or measurements; c. The date(s) analyses were performed; d. The individual(s) who performed the analyses; e. The analytical techniques or methods used;and f. The results of such analyses. 7. Inspection and Entry The permittee shall allow the Director, or an authorized representative, upon the presentation of credentials and other documents as may be required by law,to; a. Enter upon the permittee's premises where a regulated facility or activity is located or conducted, or where records must be kept under the conditions of this permit; b. Have access to and copy any records that must be kept under the conditions of this permit; c. Inspect any facilities,equipment (including monitoring and control equipment), practices, or operations regulated or required under this permit;and d. Sample or monitor, for the purposes of assuring permit compliance or as otherwise authorized by the Clean Water Act, any substances or parameters at any location. SECTION E. REPORTING REQUIREMENTS 1. Change in Discharge All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of any pollutant identified in this permit more frequently than or at a level in excess of th a t authorized shall constitute a violation of the permit. 2. Planned Changes • The permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions to the permitted facility. Notice is required only when: a. The alteration or addition to a permitted facility may meet one of the criteria for determining whether a facility is a new source in 40 CFR Part 122.29 (b);or b. The alteration or addition could significantly change the nature or increase the quantity of pollutants discharged. This notification applies to pollutants which are subject neither to effluent limitations in the permit,nor to notification requirements under 40 CFR Part 122.42 (a) (1). 3. Anticipated Noncompliance The permittee shall give advance notice to the Director of any planned changes in the permitted facility or activity which may result in noncompliance with permit requirements. 4. Transfers This permit is not transferable to any person except after notice to and approval by the Director. The Director may require modification or revocation and reissuance of the permit and incorporating such other requirements as may be necessary under the Clean Water Act. Page 8 of 10 General Permit NCG500000 5. Duty to Report Noncompliance a. The permittee shall report to the central office or the appropriate regional office any noncompliance which may endanger health or the environment. Any information shall be provided orally within 24 hours from the time the permittee became aware of the circumstances. A written submission shall also be provided within 5 days of the time the permittee becomes aware of the circumstances. (1) The written submission shall contain a description of the noncompliance,and its cause;the period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue;and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. b. The following shall be included as information which must be reported within 24 hours under this paragraph. (1) Any unanticipated bypass which exceeds any effluent limitation in the permit. (2) Any upset which exceeds any effluent limitation in the permit. (3) Violation of a maximum daily discharge limitation for any of the pollutants listed by the Director in the permit to be reported within 24 hours. c. The Director may waive the written report on a case-by-case basis for reports under paragraph b. above of this condition if the oral report has been received within 24 hours. 6. Other Information Where the permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or in any report to the Director, it shall promptly submit such facts or information. 7. Noncompliance Notification Procedure The permittee shall report by telephone to either the central office or the appropriate regional office of the Division as soon as possible,but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of wastes which are abnormal in quantity or characteristic,such as the dumping of the contents of a sludge digester; the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances. b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of - adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors,etc. c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass directly to receiving waters without treatment of all or any portion of the influent to such station or facility. Persons reporting such occurrences by telephone shall also file a written report in letter form within 5 days following first knowledge of the occurrence. 8. Availability of Reports Except for data determined to be confidential under NCGS 143-215.3(a)(2) or Section 308 of the Federal Act, 33 USC 1318, all reports prepared in accordance with the terms shall be made available for public• inspection at the offices of DWQ or at the site of the discharge within a reasonable time period, not to exceed five (5) days. As required by the Act,effluent data shall not be considered confidential. Knowingly making any false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS 143-215.1(b)(2) or in Section 309 of the Federal Act. Page 9 of 10 General Permit NCG500000 9. Penalties for Falsification of Reports The Clean Water Act provides that any person who knowingly makes any false statement, representation, or certification in any record or other document submitted or required to be maintained under this permit, including monitoring reports or reports of compliance or noncompliance shall, upon conviction,be punished by a fine of not more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. PART III OTHER REQUIREMENTS 1. Previous Permits All previous State water quality permits issued to this facility for this particular discharge, whether for construction or operation or discharge,are hereby revoked by issuance of this permit and subsequent issuance of a Certificate of Coverage. The conditions,requirements,terms,and provisions of this permit authorizing discharge under the National Pollutant Discharge Elimination System govern discharges from this facility. 2. Construction No construction of wastewater treatment facilities or additions thereto shall be begun until Final Plans and Specifications have been submitted to DWQ and approval has been granted by the Division. Design and operation of facilities and/or treatment works shall be in accordance with the application and supporting information. If facility deficiencies, design and/or operational, are identified in the future which could affect the facility performance or reliability, it is the responsibility of the permittee to correct such deficiencies. 3. Limitations Reopener This permit shall be modified or alternatively, revoked and reissued, to comply with any applicable effluent guideline or water quality standard issued or approved under Sections 302(b)(2) (c), and (d), 304(b) (2), and 307(a) (2) of the Clean Water Act, if the effluent guideline or water quality standard so issued or approved: a. contains different conditions or is otherwise more stringent than any effluent limitation in the permit; or b. controls any pollutant not limited in the permit. The permit as modified or reissued under this paragraph shall also contain any other requirements in the Act then applicable. PART IV ANNUAL ADMINISTERING & COMPLIANCE MONITORING FEE The permittee must pay the annual administering and compliance monitoring fee (if any such fee is assessed) within 30 days after being billed by the Division. Failure to pay such fees in a timely manner in accordance with 15 NCAC 2H.0105(b)(4) may cause the Division to initiate action to revoke the Certificate of Coverage. Page 10 of 10 - - Fen c e ,:;,. ,r,. W , , I I 12" I _1 _s 2 W s . LL SI}M F2L. 19 w .. t is M61 u 1kOt.� c w I j o; - o IK O A x 1 _, - `• Q F= Meter is P,t.,L'-.-� t 1 1 - 1-_1i n✓�sXi sc P4.H• - I - / k I ,� 1,'• �- In1 1� QI.L :_:._ 3 ' •zDYlr Hausa • I i I I / I LNfhTER. _ { L3A-� Prprrip— _ — Tel LETS --0�L--r,c - C.O. A. W if kS-1.15T. iIl .►� �? oar p1r :l -. w 1 e H cty; t 4 PC )- I6. N7 1 6 73\ 2 0 Can o s.oNJ / Q. b PY Tre�n 3 y 7 s s �--ic— A. w— „J//��\ /� 13Qi1.E12 O jl ( W 7/1, W v1;fe Fence 1 1 1 RIR s di;n I I I 1 ri�Yt . �_ �_I _,...---A t,...---....-„ ..........x x X. x ,t A. x I s- r — -- At1 A A 'tR R S;d;h 6' . -, I 1 1 t 11 I I 1 1 1 1 t -I---4--+-4- I -I- -1---.I._....f_- .--F- --I-- 1 - -I •r F --f---t----fi----1----1-9 f_ _--f---•--1--1- r I 1' \ R.R.Ssd;n 5 8" I I i--i--t---:- i I I .' --- 1 5 State of North Carolina ,, Department of Environment and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Aimminimink Wayne McDevitt, Secretary D E N R A. Preston Howard, Jr., P.E., Director & NA!t>=AT i i "`S SEP 22 1990 KW „ALE September 18, 1998 Isa L :LE L�a;�,aa4t blaa Ms. Suzanne Cook Howard, V.P Willis Hosiery Mills, Inc. PO Box 407 Concord,North Carolina 28025 Subject: General Permit No. NCG500000 Application No. NCG500369 Willis Hosiery Mills, Inc. Cabarrus County Dear Ms. Howard: Please find attached a copy of Biocide Worksheet Form 101. This worksheet must be completed for each additive, biocide, algaecide, corrosion inhibitor used (BL-171, BL-1541, BL-1347, Sodium Hydroxide, 50% solution of costic soda) in the boiler blowdown at the Willis Hosiery Mills, Inc. facility. Submit the forms back to the Division of Water Quality at your earliest convience. If you have any questions concerning the worksheets, please contact Melissa Rosebrock at telephone number 919/733-2136. Sincerely, jf"el(1117.. Mack Wiggins Stormwater and General Permits Unit cc: Mooresville Regional Office, Water Quality Stormwater and General Permits Unit An Equal Opportunity Affirmative Action Employer 50% recycled/10%post-consumer paper P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-0719