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HomeMy WebLinkAboutNC0041696_Permit Issuance_20010117NPDES DOCUMENT SCANNING COVER MEET NC0041696 Lake Rhodhiss WWTP NPDES Permit: Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Report Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Document Date: January 17, 2001 Thies document is printed on reuse paper - ignore any cantent on the reirerse snide State of North Carolina Department of Environment and Natural Resources Division of Water Quality Michael F. Easley, Governor Sherri Evans -Stanton, Acting Secretary Kerr T. Stevens, Director January 17, 2001 Mr. Jeffrey V. Morse, Town Manager Town of Valdese P.O. Box 339 Valdese, North Carolina 28690-0339 Al� I� CDENR Subject: NPDES Permit Issuance Permit No. NC0041696 Town of Valdese — Lake Rhodhiss WWTP Burke County Dear Mr. Morse: Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated May 9, 1994 (or as subsequently amended.) Several modifications were made to the permit during the draft phase: • The addition of a one-year compliance schedule for the new mercury limit that will be placed in your permit. The Town of Valdese will have twelve months of twice per month mercury monitoring after which an effluent limitation of 0.25 ug/I will be effective at 7.5 MGD and a limit of 0.18 ug/I at 10.5 MGD. After the twelve month compliance schedule, if Valdese has had twelve consecutive months of mercury values below the detection level of 0.2 ug/1, then the Town may submit a written request asking DWQ to re-evaluate the assignment of a mercury limit in the NPDES permit. • After further evaluation of the data used during our analysis, it was determined that sulfates limits at 7.5 MGD and 10.5 MGD are no longer required. More recent data submitted by the Town was more representative of the current treatment for this constituent. In addition, sulfates will be monitored quarterly in the Town's Long Term Monitoring Plan (LTMP) and this data can be evaluated upon next permit renewal. • The chromium limit at 10.5 MGD will be deleted based on reevaluation of the submitted LTMP data. Ten of the seventeen values of the chromium data were below detection and five values were less than 13 ug/I. Based on further evaluation, it was determined that continued monitoring in the LTMP would provide enough data for evaluation at the next permit renewal. • After further evaluation of the data used during our analysis, it was determined that zinc monitoring is no longer required. Continued monitoring in the LTMP would provide enough data for evaluation at the next permit renewal. 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone 919-733-5083/FAX 919-733-0719 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper • After further evaluation of the data used during our analysis, it was determined that zinc monitoring is no longer required. Continued monitoring in the LTMP would provide enough data for evaluation at the next permit renewal. • The addition of monthly effluent monitoring for copper at 7.5 MGD and 10.5 MGD was based on reasonable potential analysis of your pretreatment program's LTMP data. • The results of the optimization study will be due by June 30, 2002 as requested by the Town. It is required that the facility conduct Total Phosphorus (TP) optimization study on the plant as a result of the elevated concentrations discharged in the effluent. The Division has concerns about the increasing TP loading being exported into Lake Hickory. The optimization study should identify the sources of TP loads and evaluate how to reduce and minimize these inputs to the plant. In addition, the facility should review operational and treatment techniques to determine if TP removal is being maximized. • The monitoring frequency for NH3 has been corrected to weekly. The draft permit had the monitoring frequency incorrectly given as twice per month. • The monitoring frequency for phenols will be twice per month as given in the previous NPDES permit. The following modifications listed in the earlier draft will remain the same: • The addition of an effluent page for wasteflow of 10.5 MGD based on facility's request for expansion due to increased flow from local manufacturing company and future projected growth. The Construction Grants and Loans Section has stipulated that the following areas must be addressed and completed before the Valdese -Lake Rhodhiss WWTP can expand to 10.5 MGD. There must be increased capacity and upgrading in the following: 1. Influent pump station 2. Aeration equipment 3. Plant outfall 4. Residuals management facilities • The addition of a total residual chlorine limit of 28 ug/1 upon expansion to 10.5 MGD. • The deletion of instream rhonitoring for fecal conform and conductivity. If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the office of Administrative Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such a demand is made, this permit shall be final and binding. Please take notice that this permit is not transferable. Part II, E.4. addresses the requirements to be followed in case of change in ownership or control of this discharge. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Quality or permits required by the Division of Land Resources, Coastal Area Management Act, or any other Federal or Local governmental permits may be required. If you have any questions or need additional information. please contact Ms. Jacquelyn Nowell at telephone number (919) 733-5083, extension 512. Sincerely, Original Signed By David A. Goodrich Kerr T. Stevens cc: Central Files Roosevelt Childress/EPA Region IV Asheville Regional Office / Water Quality Section Construction Grants and Loans/attn: Cecil Madden Point Source Compliance /Enforcement Unit Aquatic Toxicology Unit NPDES Unit/Permit File _e Permit No. NC0041696 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY PERMIT TO DISCHARGE WASTEWATER 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, Town of Valdese is hereby authorized to discharge wastewater from a facility located at Lake Rhodhiss Wastewater Treatment Plant on Lake Rhodhiss Drive north of Valdese Burke County to receiving waters designated as Lake Rhodhiss (Catawba River) in the Catawba River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and IV hereof. This permit shall become effective March 1, 2001 This permit and authorization to discharge shall expire at midnight on January 31, 2005 Signed this day January 17, 2001 Original Signed By David A. Goodrich Kerr T. Stevens, Director Division of Water Quality By Authority of the Environmental Management Commission Permit No. NC0041696 SUPPLEMENT TO PERMIT COVER SHEET Town of Valdese • is hereby authorized to: Continue to operate a 7.5 MGD wastewater treatment facility consisting of influent pump station, bar screen, grit removal, primary clarifiers, aeration basins, • secondary clarifiers, chlorination, gravity sludge thickeners, residual centrifuges, and residuals composting operation located at Valdese Wastewater Treatment Plant, on Lake Rhodhiss Drive, north of Valdese, Burke County, and 2. After receiving an Authorization to Construct from the Division of Water Quality, construct and operate additional wastewater treatment facilities and upgrade the existing influent pumping, aeration equipment, plant outfall, and residuals management facilities. The ultimate design capacity after expansion and modification to existing facilities shall be 10.5. MGD, and 3. Discharge from said treatment works at the location specified on the attached map into the Lake Rhodhiss (Catawba River), which is classified WS-IV & B CA waters in the Catawba River Basin. Facility Information Latitude: 35°46' 41" Sub -Basin Longitude: 81°32' 25" Quad #: D12SE Stream Class: WS-IV & B CA Receiving Stream: Catawba River Permitted Flow: 7,5 MGD, 10.5 MGD 0:-S-OS-31 Town of Valdese -Lake Rhodiss WWTP NC0041696 Burke County A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NC0041696 During the period beginning on the effective date of the permit and lasting until December 31, 2001 or expansion to 10.5 MGD, the Permittee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS, _ ,--.�--S�;i. 4 Monthly Average Weekly Average Daily Maximum Measurement • Frequency • Sample, Type 2,' • , £, ?,,RSam !e k '-''L `Locatlont" Flow 7.5 MGD Continuous Recording 1 or E BOD5 2 30.0 mg/I 45.0 mg/I Daily Composite E,1 Total Suspended Solids2 30.0 mg/I 45.0 mg/I Daily Composite E,I NH3-N Weekly Composite E Dissolved Oxygen Daily Grab Dissolved Oxygen (June 1 through September 30) 3/Week Grab U,D Dissolved Oxygen (October 1 through May 31) Weekly Grab U,D Fecal Coliform (geometric mean) 200/100 ml 400/100 ml Daily Grab E pH3 Daily Grab E Phenols 21 trg/I 2/month Grab E Mercury 2/month Grab E Copper Monthly Grab E Total Residual Chlorine • Daily Giab Temperature (June 1 through September 30) 3/Week Grab U,D Temperature (October 1 through May 31) Weekly Grab U,D Total Nitrogen (NO2 + NO3 + TKN) Monthly Composite E Total Phosphorus Monthly Composite _ E Chronic Toxicity; Quarterly Composite E Notes: 1. Sample Locations: E - Effluent, I — Influent , U - Upstream at least 100 feet, D — Downstream 1 mile below discharge at SR 1001. Upstream and downstream samples shall be grab samples. Stream samples shall be collected three times per week during June, July, August, and September and once per week during the remaining months of the year. 2. The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85% removal). 3� The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 4. Chronic Toxicity (Ceriodaphnia) P/F @ 4.8%; January, April, July, October. See Special Conditions of the Supplement to Effluent Limitations A (4). 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. NC0041696 During the period beginning on the January 1, 2002 and lasting until expansion to 10.5 MGD or expiration, the Permittee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS• LIMITS MONITORING REQUIREMENTS . wile. ' -=' is �.-�� Monthly Average Weekly Average Daily Maximum Measurement . Frequency Sample • Type ' Sample tx A Locationl Flow 7.5 MGD Continuous Recording I or E BOD5 2 30.0 mgll 45.0 mg/I Daily • Composite E,I Total Suspended Solids2 30.0 mg/I 45.0 mg/I Daily Composite E,1 NH3-N Weekly Composite E Dissolved Oxygen Daily Grab E Dissolved Oxygen (June 1 through September 30) 3/Week Grab U,D Dissolved Oxygen (October 1 through May 31) Weekly Grab U,D Fecal Coliform (geometric mean) 200/100 ml 400/100 ml Daily Grab E pH3 Daily Grab E Phenols 21 µg/I 2/month Grab E Mercury 0.25 }tg/I Weekly Grab E Copper Monthly Grab E Total Residual Chlorine Daily Grab E Temperature (June 1 through September 30) 3/Week Grab U,D Temperature (October 1 through May 31) Weekly Grab U,D Total Nitrogen (NO2 + NO3 + TKN) Monthly Composite E Total Phosphorus Monthly Composite E Chronic Toxicity; Quarterly Composite E Notes: 1. Sample Locations: E - Effluent, I — Influent , U - Upstream at least 100 feet, D — Downstream 1 mile below discharge at SR 1001. Upstream and downstream samples shall be grab samples. Stream samples shall be collected three times per week during June, July, August, and September and once per week during the remaining months of the year. 2. The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85% removal). 3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 4. Chronic Toxicity (Ceriodaphnia) P/F @ 4.8%; January, April, July, October. See Special Conditions of the Supplement to Effluent Limitations A (4). There shall be no discharge of floating solids or visible foam in other than trace amounts. A (3). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NC0041696 During the period beginning upon expansion to 10.5 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS ;:. . Monthly Average Weekly Average Daily Maximum Measurement Frequency • Sample • Type Sample Locations .,rt: . Flow 10.5 MGD Continuous Recording I or E BOD5 2 • 15.0 mg/l 22.5 mg/l Daily Composite E,I Total Suspended Solids2 30.0 mg/1 45.0 mg/I Daily Composite E,I NH3-N 4.0 mg/I Weekly Composite E Dissolved Oxygen3 Daily Grab E Dissolved Oxygen (June 1 through September 30) 3/Week Grab U,D Dissolved Oxygen (October 1 through May 31) Weekly Grab U,D Fecal Coliform (geometric mean) 200/100m1 400/100 ml Daily Grab E pH4 Uaily Grab E Phenols 15 pgli ' 2/month Grab E Mercury 0.18 µg/I Weekly Grab E • Copper 2/month Grab E Total Residual Chlorine 28 µg/l Daily Grab E ' Temperature (June 1 through September. 30) 3/Week Grab U,D Temperature (October 1 through May 31) • Weekly Grab U,D Total Nitrogen (NO2 + NO3 + TKN) Monthly Composite E Total Phosphorus Monthly Composite _ E Chronic Toxicity5 Quarterly Composite E Notes: 1. Sample Locations: E - Effluent, I — Influent , U - Upstream at least 100 feet, D — Downstream 1 mile below discharge at SR 1001. Upstream and downstream samples shall be grab samples. Stream samples shall be collected three times per week during June, July, August, and September and once per week during the remaining months of the year. 2. The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85% removal). 3. The daily average dissolved oxygen effluent concentrations shall not be less than 5 mgll. M., The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. • N. 5. Chronic Toxicity (Ceriodaphnia) P/F @ 6.6%; January, April, July, October. See Special Conditions of the Supplement to Effluent Limitations A (5). There shall be no discharge of floating solids or visible foam in other than trace amounts. Permit No. NC0041696 SUPPLEMENT TO EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SPECIAL CONDITIONS A (4). CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY) @ 7.5 MGD The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphnia dubia at an effluent concentration of 4.8 %. The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. The tests will be performed during the months of January, April, July, and October. Effluent sampling for this testing shall be performed at the NPDES permitted final effluent discharge below all treatment processes. If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. The chronic value for multiple concentration tests will be determined using the geometric mean of the highest concentration having no detectable impairment of reproduction or survival and the lowest concentration that does have a detectable impairment of reproduction or survival. The definition of "detectable impairment," collection methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Water Quality 1621 Mail Service Center Raleigh, North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days after the end of the reporting period for which the.report is made. Test data shall be complete, accurate, include all supporting chemical/physical measurements and all concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number, county, and the month/year of the report with the notation of «No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Branch at the address cited above. Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be required during the following month. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. Permit No. NCOO4169G SUPPLEMENT TO EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SPECIAL CONDITIONS A (5). CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY) ® 10.5 MGD The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphnia dubia at an effluent concentration of 6.6%. The permit holder shall perform at a minimum, auarterl' monitoring using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. The tests will be performed during the months of January, April, July, and October. Effluent sampling for this testing shall be performed at the NPDES permitted final effluent discharge below all treatment processes. If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. The chronic value for multiple concentration tests will be determined using the geometric mean of the highest concentration having no detectable impairment of reproduction or survival and the lowest concentration that does have a detectable impairment of reproduction or survival. The defmition of "detectable impairment," collection methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Water Quality 1621 Mail Service Center Raleigh, North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete, accurate, include all supporting chemical/physical measurements and all concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Branch. at the address cited above. Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be required during the following month. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. Re: NC0041696 - Town of Valdese permit Subject: Re: NC0041696 - Town of Valdese permit Date: Mon, 08 Jan 2001 13:54:39 -0500 From: Harold Saylor <Harold.Saylor@ncmail.net> Organization: NC DENR - Asheville Regional Office To: Jackie Nowell <jackie.nowell @ncmail.net> Jackie, we concur with renewal of the referenced permit for the Town of Valdese Wastewater Treatment Plant. Let me know if you need anything further. H Saylor Jackie Nowell wrote: > Hello Mr. Saylor, I contacted you in December about DEH approval on the > renewal of this permit that discharges into Lake Rhodhiss in Burke Co. > In our last phone call, you indicated that other staff in your office > would review this. Please let me know the status of your review, > because your information will allow me to proceed with the reissuance > this permit. Thank you. Harold Saylor - Harold.Saylor@ncmail.net North Carolina Dept. of Environment and Natural Resources Asheville Regional Office - Merrimon Ave. Office Division of Environmental Health - Public Water Supply 852 Merrimon Ave. Asheville, NC 28804 Tel: 828-251-6786 Fax: 828-251-6770 Harold Saylor <Harold.Saylor@ncmail.n_e_b NC DENR - Asheville Regional Office Division of Environmental Health - Public Water Supply 1 of 1 1/8/01 2:30 PM Permit Notes NC0041696 Background The Town of Valdese has requested renewal of existing permit. Facility is a 7.5 MGD plant that discharges into Lake Rhodhiss (the Catawba River). The lake is fully supporting its uses. The receiving stream is classified WS-IV & B CA (critical area). The Catawba River chain lakes have regulated flow from the dams. The minimum flow that has been used in the past WLAs has been 228.7 cfs. Existing limits at 7.5 MGD are BODS= 30 mg/1, NH3 monitoring, TSS =30 mg/1, Fecal = 200/ 100m1, monthly monitoring of TN and TP, a phenols limit of 21 ug/1, chronic toxicity limit of 4.8% in JAN APR JUL OCT. Instream monitoring for DO, fecal, temp and conductivity is currently required. Fecal and conductivity will be dropped. Spec limits for expansion to 9.5 and 11.5 MGD, were completed in 1991 and 1998. DWQ recommended BPJ limits of 15 mg/1 BOD5, 4 mg/1 NH3 and DO > 5 mg/1. May need some revisions of nitrogenous inputs of direct dischargers into the lake. Chronic tox tests of 6 and 7% would also be recommended. Preliminary recommendation for 10.5 MGD - BPJ limits of 15/4/5, TRC = 28 ug/1, phenols and mercury limit, copper, zinc and sulfates monitoring in the NPDES permit, Chronic quarterly test @ 6.6%. Continued instream monitoring for temperature and DO. Recommend that facility conduct TP optimization study for plant because of the elevated TP levels discharged over the past few years. Permit Application Info Valdese also serves the Town of Hildebran, Drexel, Rutherford College, Connelly Springs, and Eastern Burke Co. for a total of 13,430 people served. Estimated average monthly flow from all industrial sources - 3.83 MGD. Total permitted monthly flow from all industrial sources - 5.662 MGD Sills - updated per 7/31/00 conversation with Andria Pressley, pretreatment coordinator. The Valdese WWTP has 80% industrial waste and 20% domestic waste. Sometimes flow goes as high as 90% industrial. • Waldensian Bakery - bakery - 0.071 MGD - intermittent • Valdese Weavers (Rutherford College and Lovelady) - upholstery fabric - 0.656 MGD- intermittent (BOD5, TSS) • Valdese Textiles - upholstery fabric - 0.130 MGD - intermittent (BOD5, TSS) • Valdese Manufacturing Co. - yarn - 0.770 MGD - intermittent • (BOD5, TSS, Pb, Zn - 826,000) • Houston Hosiery - socks - 0.029 MGD - intermittent • VNC Textiles -fabrics and cloths - 0.589 MGD - intermittent • Carolina Mills - fabrics and cloth - 1.117 MGD- intermittent (BOD5, TSS, As, Cd, Cu, Cn, Pb, Hg, Ni, Ag, Cr, Zn) • Burke Mills, Inc. - yarn- 0.361 MGD- intermittent - (BOD5, TSS, Zn, Cr) • Alba Waldensian - ladies undergarments -0.083 MGD - intermittent (BOD5, TSS, Zn, Cu) • Robinson Hosiery - textile - 0.024, (0.050 MGD per Andria Pressley on 7/31) - intermittent *(info in parentheses is from 1995 application) Permit Notes NC0041696 Page 2 7/25/00 call from Dan Blaisdell of Construction Grants. - Meeting scheduled on 7/26 at 10 am with the engineers from Valdese. Construction Grants has already approved and issued an ATC for the Town. Reviewed the 201 plan, however when the Town submitted the plans and specs, they didn't have everything they needed to go to 10.5 MGD. Although the Town can construct, they can't pass flow greater than 7.5 MGD. Valdese wants to resubmit their application for a conditional expansion to 10.5 MGD. (This would be considered a major modification of the permit and has not been requested as of yet.) According to CG, Valdese must address and complete three things for the expansion to 10.5 MGD. 1) Sludge handling, 2) an internal pump station, and 3) the effluent outfall is too small. They are meeting with CG, and NPDES to make sure that all needed info is in the application request. 5/26/00 - Received note from Michelle Woolfolk - RO has provided information on TP loads from Valdese. TP concentrations have gradually increased on the years, in 1994 avg. was approximately 3.5 mg/1, in 1995 it was 6.5 mg/1, in 1996 - 5.7 mg/1, in 1997 - 7.4 mg/1, in 1998 -5.7 mg/1, in 1999 - 5.3 mg/1, thru May 2000 - 3.8 mg/l. Possible factors contributing to the TP increase may be a change in the ORC between 1994 and 1995, solids loss due to clarifier work, and solids loss associated with I&I. The new operator failed to maintain sufficient oxygen concentrations in the aeration basin. Still tries to maintain an anoxic zone within the aeration basin. Low DO concentrations and anoxic zones may have raised the TP discharged in 1995 and subsequently. Certain organisms release soluble inorganic phosphorus under anaerobic conditions. Modeling Unit recommending optimization at the plant. 3/24/00 - email from Tom Belnick - ESB meeting on Lake James/Rhodhiss/Hickory - Concerned about increasing TP loading from Valdese. The load does not appear to impact Lake Rhodhiss, some may be exported downstream to Lake Hickory, since Rhodhiss doesn't appear to be a TP sink. Coleen recommends asking them to evaluate why TP load is increasing, indicate concern about downstream lake, and possibly have them do TP optimization study. These items should be placed in the cover letter. 1999 Catawba River Basinwide Management Plan (p. 94) -DWQ is using a model to develop a management strategy to protect water quality of Rhodhiss Lake. USGS model evaluated the response of chlorophyll a levels in the lake to different nutrient reduction scenarios. Reductions of TP and TN considered at the headwaters and at the Valdese WWTP. With input from local stakeholders, will develop a management strategy for controlling nutrient inputs to Rhodhiss Lake. Point sources contribute 22% of TP load and 27% of TN load. Nutrient strategy will be described in the next basin plan. Review of Compliance Data Thus far in 2000, Valdese has had one permit exceedence for TSS in March. Averages for Qw= 5.4 MGD, BODS = 5.0 mg/1, NH3 = 0.35 mg/1, TSS = 22.1 mg/1, TN = 3.6 mg/1, TP = 3.8 mg/l. In 1999, Two exceedences of TSS in June and November. Averages were Qw = 5.2 MGD, BODS =5.8 mg/1, TSS = 26.9 mg/1, and NH3 = 0.23 mg/1, TN = 4.4 mg/1, TP = 5.4 mg/1. Permit Notes NC0041696 Page 3 In 1998, One BOD5 violation and 4 TSS violations. Qw averaged 5.5 MGD, BOD= 7.3 mg/1, TSS = 50 mg/1, NH3 = 0.23 mg/1, TN = 7.4 mg/1, TP = 5.7 mg/1. In 1997, No exceedences of permit limits. Qw averaged 4.9 MGD, BOD= 3.9 mg/1, TSS = 13.4 mg/1, NH3 = 0.39 mg/1, TN = 6.3 mg/1, TP = 7.4 mg/1 Chlorine values are relatively high, the averages ranged from 0.535 mg/1 to 1.04 mg/1. Maximum values reported are 1.9 mg/1 to 4.1 mg/1. During 2000, the flow average has been 5.4 MGD this is approximately 72% of design flow of 7.5 MGD. In 1999, the flow average was 5.2 MGD, which was 69% of capacity. In 1998, the flow average was 5.5 MGD, which was 73% of capacity. Toxicity Test Results: Existing Chronic Toxicity Test @ 4.8% sampled in JAN APR JUL OCT. Has consistently PASSed the tox test since July 1996. Two Late tests in 1998. Last FAILs in April and May 1996. Reasonable Potential Analysis: Initial results indicate that mercury should be limited. Per A. Pressley, the reported mercury value for May 9th is not correct. Instead of 2.4 ug/1, the actual value is 1.2 ug/1. Will fax the corrected data to NPDES. The replacement of the Hg value did not change the previous result of the RPA. Hg should still be limited, the maximum predicted value is lower. A sulfates limit will be placed in the permit at 7.5 MGD and 10.5 MGD. The allowable concentration for sulfates is very high (5174 mg/1) and the maximum predicted value is approximately three times greater (17535 mg/1). Therefore will recommend a sulfates limit for the protection of the WS classification (already in the LTMP program). A chromium limit will be placed in the permit at 10.5 MGD based on the reasonable potential analysis. Copper,and zinc monitoring will be added based on the reasonable potential analysis. Instream Data Instream monitoring for dissolved oxygen and temperature will be continued. Sites will be upstream 100 feet of discharge point and downstream 1 mile below discharge at SR1001. Monitoring for fecal coliform and conductivity will be deleted due to new DWQ policy for 100% domestic dischargers. April - October, 1997 - 1999: All data looks good, no instream violations of DO. DO values range from 8 to 10 mg/1, upstream and downstream. There were no exceedances of the fecal coliform standard instream. Instream BOD5 averages 2 mg/1. Correspondence File Info 6/19/2000 - NOV and assessment for civil penalties of $1329.46 for violation of Total Suspended Residue and fecal coliform discharge limits in March 2000. 3/20/2000 - Pretreatment Annual Report - in compliance however "waste reduction should receive additional attention" per ARO. Permit Notes NC0041696 Page 4 3/8/2000 - Received $1079.46 in payment of civil assessment 10/20/1999 - Effluent value of 9 ug/1 reported for phenols. 10/ 13/ 1999 - Compliance Inspection Report - in compliance 9/24/99 - NOV and assessment for civil penalties of $1079.46 for violation of Total Suspended Residue discharge limits in June 1999. 6/ 14/ 1999 - Pretreatment Compliance Inspection - program well run 1 /7/99 - Compliance Evaluation Inspection to assess the loss of solids during preventative maintenance and repair of a secondary clarifier which started on 12/8/98. 11 / 16/98 - Payment acknowledgement of $1103.00 10/ 16/98 - NOV and assessment for civil penalties of $1103.00 for violation of Total Suspended Residue discharge limits in July 1998. 6/26/98 - Sludge spill acknowledgement from ARO on report 6/22/98 - NOV for TSS 12/30/97 - NOV during the CSI- phenols limit exceeded. No corrective actions indicated. 7/26/96 - NOV for tox test in May 1996 6/26/96 - NOV for tox test in April 1996 4/29/96 - NOV for TSS 1/29/96 - NOV for TSS and fecal coliform ########################## Recommend renewal of existing NPDES limits with some changes. • Instream monitoring for fecal coliform and conductivity will be deleted due to new DWQ policy. • The addition of mercury and sulfates limits at 7.5 MGD and 10.5 MGD based on reasonable potential analysis of LTMP data. • The addition of a chromium limit at 10.5 MGD based on reasonable potential analysis of LTMP data. • The addition of copper and zinc monitoring at 7.5 MGD and 10.5 MGD based on reasonable potential analysis of LTMP data. • Facility must conduct a TP optimization study to determine the sources of high effluent TP values. Permit Notes NC0041696 Page 5 8/8/00 - Review of engineering narrative in support of modification of permit for expansion to 10.5 MGD: The request is for an additional 3 MGD of wasteflow to accommodate 500,000 gallon per day from Valdese Manufacturing Co. and to handle future wastewater treatment needs of anticipated residential, commercial area, and industrial growth in the Valdese portion of the regional Burke County. The expansion involves the replacement of the existing equipment that is in deteriorated conditions, upgrading equipment within the existing treatment structures and the addition of new facilities. Valdese serves 5 towns with a total population of approx. 13,500 and 10 SIUs. Flow projections indicate that the facility will reach the average daily flow capacity of 7.5 MGD in 2008. In 2007, would have to submit plans and specs for the future improvements and construction would be completed in 2008. During 2000, the flow average has been 5.4 MGD this is approximately 72% of design flow of 7.5 MGD. In 1999, the flow average was 5.2 MGD, which was 69% of capacity. In 1998, the flow average was 5.5 MGD, which was 73% of capacity. 1. Average Daily Industrial Flow --- 2. Permitted Monthly Industrial Flow --- 3. Current NPDES Permitted Flow 4. Difference allowed for domestic/other flows 3.83 MGD 5.662 MGD 7.5 MGD 1.838 MGD (#3 - #2) 3.67 MGD (#3 - #1) If facility will reach 7.5 MGD capacity in eight years in 2008, when will Valdese Manufacturing Co. flow of 0.5 MGD be needed? Town currently has the capacity to accept this flow now and still have additional room less than 7.5 MGD. Need to review population growth information for all towns. 8/ 30/ 00 - telecon with Charles Davis of The Wooten Company- asked him of written request from Valdese Manufacturing Co. requesting 500,000 GPD of additional flow from the Town. Said that he was not sure that all 500,000 GPD was to come from just one company but more than one. He will check on sending a letter of verification for flow. 9/1/00 - received fax of 7/23/98 letter from Valdese Manufacturing Co. where they "expect to expand their operation in the next 5 to 7 years by 0.5 MGD". They requested that 0.5 MGD of additional capacity be included in the proposed expansion and reserved for Valdese Mfg. 9/30/00 - peer review had raised questions about the flow justification for expansion to 10.5 MGD. Consulted with DAG who said that the flow justification and projections have been reviewed and approved by Construction Grants. FONSI has been approved for 10.5 MGD and their decision will stand. 201 Plan has been approved and we will issue the permit with 7.5 MGD and 10.5 effluent limits pages. DWQ Response to Valdese written comments rec'd 10/27/00 1. Valdese requests change on supplement page from "aeration equipment including additional blowers" to "aeration equipment" only. - DWQ concurs Permit Notes NC0041696 Page 5 8/8/00 - Review of engineering narrative in support of modification of permit for expansion to 10.5 MGD: The request is for an additional 3 MGD of wasteflow to accommodate 500,000 gallon per day from Valdese Manufacturing Co. and to handle future wastewater treatment needs of anticipated residential, commercial area, and industrial growth in the Valdese portion of the regional Burke County. The expansion involves the replacement of the existing equipment that is in deteriorated conditions, upgrading equipment within the existing treatment structures and the addition of new facilities. Valdese serves 5 towns with a total population of approx. 13,500 and 10 SIUs. Flow .projections indicate that the facility will reach the average daily flow capacity of 7.5 MGD in 2008. In 2007, would have to submit plans and specs for the future improvements and construction would be completed in 2008. During 2000, the flow average has been 5.4 MGD this is approximately 72% of design flow of 7.5 MGD. In 1999, the flow average was 5.2 MGD, which was 69% of capacity. In 1998, the flow average was 5.5 MGD, which was 73% of capacity. 1. Average Daily Industrial Flow --- 2. Permitted Monthly Industrial Flow --- 3. Current NPDES Permitted Flow 4. Difference allowed for domestic/other flows 3.83 MGD 5.662 MGD 7.5 MGD 1.838 MGD (#3 - #2) 3.67 MGD (#3 - #1) If facility will reach 7.5 MGD capacity in eight years in 2008, when will Valdese Manufacturing Co. flow of 0.5 MGD be needed? Town currently has the capacity to accept this flow now and still have additional room less than 7.5 MGD. Need to review population growth information for all towns. 8/30/00 - telecon with Charles Davis of The Wooten Company- asked him of written request from Valdese Manufacturing Co. requesting 500,000 GPD of additional flow from the Town. Said that he was not sure that all 500,000 GPD was to come from just one company but more than one. He will check on sending a letter of verification for flow. 9 / 1 / 00 - received fax of 7 / 23 / 98letter from Valdese Manufacturing Co. where they "expect to expand their operation in the next 5 to 7 years by 0.5 MGD". They requested that 0.5 MGD of additional capacity be included in the proposed expansion and reserved for Valdese Mfg. 9/30/00 - peer review had raised questions about the flow justification for expansion to 10.5 MGD. Consulted with DAG who said that the flow justification and projections have been reviewed and approved by Construction Grants. FONSI has been approved for 10.5 MGD and their decision will stand. 201 Plan has been approved and we will issue the permit with 7.5 MGD and 10.5 effluent limits pages. DWQ Response to Valdese written comments rec'd 10/27/00 and resulting telephone conversation with .Alan Abee, ORC of Valdese WWTP on December 15, 2000. 1. Valdese requests change on supplement page from "aeration equipment including additional blowers" to "aeration equipment" only. - DWQ concurs 2. Valdese disagrees with limits for mercury and sulfates at 7.5 MGD and 10.5 MGD - DWQ has performed reasonable potential analyses using 1999 and 2000 data. Submitted DMR data showed mercury hits of 1.2 ug/1 (corrected from 2.4 ug/1), 0.3 ug/1 and 0.8 ug/1 with an allowable concentration of 0.25 ug/1 for mercury at 7.5 MGD (using 229 cfs as the s7Q10). Our analyses indicate that a limit is necessary for mercury at 7.5 MGD. Valdese' admits that hits of 0.3 ug/1 have been recorded. These values show the potential and the actuality of the mercury standard being exceeded instream. The allowable concentration for mercury at 10.5 MGD is 0.18 ug/1. The evaluation of the submitted data predicts that this limit would also be violated with an increase to 10.5 MGD. Based on this analysis, a limit was recommended for both 7.5 MGD and 10.5 MGD. ** The Division recommends a compliance schedule for mercury because facility has never had limit before. Sludge data and compost samples indicate Hg below detection levels. They also have questions about the lab results for Hg, since 1 very high value was reported. Town believes Hg would be in the system more consistently if it was a real problem. Recommend twice per month monitoring for twelve months, after which the mercury limit would be applied at both flows. If Valdese has twelve months of Hg below detection levels, they can request that the Division reevaluate whether the limit should be given. • Sulfates limits - After further evaluation of the data used during our analysis, it was determined that sulfates limits at 7.5 MGD and 10.5 MGD are no longer required. More recent data submitted by the Town was more representative of the current treatment for this constituent. In addition, sulfates will be monitored quarterly in the Town's Long Term Monitoring Plan (LTMP) and this data can be evaluated upon next permit renewal. 3. Cr limit at 10.5 MGD - The highest reported value was 107 ug/1, based on the reasonable potential analysis and safety factors used, it was determined that at 10.5 MGD, the potential existed for an exceedance of the limit of 753 ug/1. However, because most of the other Cr values averaged less than 15 ug/1. we will concur with dropping the limit at 10.5 MGD and will use the data from LTMP monitoring to evaluate Cr upon the next permit renewal. 4. Cu and Zn monitoring - the data for these parameters are compared to State action levels and are currently being evaluated by EPA and NC for consideration of water quality standards. Allowable concentrations are 145 ug/1 for Cu and 1035 ug/1 for Zn. The highest Cu values were 90 ug/1, 55 ug/1, and 50 ug/1 and after the analysis it was projected to exceed the allowable. It was included in the NPDES permit because more than quarterly monitoring is needed. The highest Zn value reported was 461 ug/1 (if this was a lab error, Valdese did not question the result), all other values were below 69 ug/1. The allowable concentration of 1035 ug/1 is projected to be exceeded in the reasonable potential analysis. After further evaluation, we recommend monthly copper monitoring in the NPDES permit and zinc monitoring will be dropped from the permit and continued quarterly in the LTMP. 5. Phenols is an aesthetic standard to protect water supplies from taste and odor problems due to chlorinated phenols. There are two water supply intakes located approximately 5 miles below the Valdese WWTP. (These are water treatment facilities for Lenoir and Granite Falls.) Because of the location of these intakes and based on values of 23 ug/1, 24 ug/1, 28 ug/1 and 31 ug/1 that have occurred within the past two years, DWQ recommends that the phenols limits of 21 ug/1 @ 7.5 mg/1 and 15 ug/1 @ 10.5 mg/1 remain in the permit. Will review the compliance period for phenols and determine whether weekly average limits can be given, per request of the Town. 6. We will concur with the extension for the completion of the total phosphorus optimization study to June 30, 2002 for the purpose of including all seasons and data compilation by Valdese. 7. Instream monitoring for dissolved oxygen and temperature shows the impact of your discharge on the receiving stream. We review the data to determine whether the DO standard of 5 mg/1 is being protected and whether the instream temperature is elevated by the discharge. The instream monitoring of these parameters will not be removed from the permit. 8. The sentence regarding 85% removal cannot be removed from the NPDES permit it is required by federal regulation 40 CFR 133 for secondary treatment. We can consider modification from 85% percent removal to a value more reflective of the BOD5 and TSS coming into your plant. Central Office must consult with ARO. Tel TOWN OF VALDESE LAKE RHODHISS WWTP 2100 Lake Rhodhiss Drive P.O. Box 339 Valdese, North Carolina 28690 879 - 2131 October 25, 2000 Ms. Jacquelyn M. Nowell NPDES Unit Division of Water Quality 1617 Mail Service Center Raleigh, N.C. 27699-1617 Ref: Draft NPDES Permit No. NC 0041696 Lake Rhodhiss WWTP Town of Valdese Dear Ms. Nowell After a thorough review of the Draft copy of our proposed NPDES permit, we have several concerns and questions in regards to the limits and monitoring requirements. All of these items will cause a drastic increase in the cost of operations. With the changes in the economy, instability of the textile industry, along with the ever increasing cost of daily operations, I am concerned with the increased cost associated with these limits and parameters as well as the reasoning behind them being included in the permit. I understand the needs for limits and parameters to be monitored. However, I have questions on the following items: 1. Mercury Limit 2. Sulfate Limit 3. Chromium Limits 4. Monitoring for Copper & Zinc 5. Continued Limits on Phenols and increased monitoring 6. TP optimization study 7. Stream Sampling I would like to request a change to the phrase in Item 2 of the supplement to permit cover sheet be revised to read "aeration equipment" rather than "aeration equipment including additional blowers". All testing results included in the numbers below are from January 1998 to the present. Low numbers are listed first and high numbers are listed second. # 1 & #2) After reviewing data from the past 3 years, I do not agree with placing a limit of 0.25 ug/1 for mercury and 5174 mg/1 limit on sulfates for a 7.5 MGD plant and 0.18 ug/1 for mercury and 3767 mg/1 on sulfates at 10.5 MGD. My reasoning behind the disagreements are that we have continued to have mercury #'s of <0.0002 mg/1, with the exception of 2 times that we had results of 0.0003 mg/1 and a 1 time result of 0.012 mg/1. I do not believe that these numbers should require a sudden implementation of limits on mercury. Sulfates have been between a low of 210 mg/land a high of 691 mg/1. Why do you suggest a limit of 5174 mg/1 with 2 times a month frequency? Once again, this does not show a need for limits. #3) Chromium limits @ 753 ug/1 for a 10.5 MGD plant is also questionable. The testing results that we have for the time frame range from <0.005 mg/1 to 0.107 mg/1. There seems to be no merit for any type of limits. #4) Copper and Zinc monitoring on a 2 time per month basis is not necessary. Copper numbers have been between 0.018 mg/1 and 0.055 mg/1. The 0.055 mg/1 is the highest number that we have had. The next highest number is 0.031 mg/1. Request that we go back to quarterly monitoring with the LTM or Annual Metals #5) During the past 5 years, we have had only a very small number of times that the phenols have been above the detection level. And of those, only 5 or 6 times have they been > 0.021 mg/1. We are requesting that the limit be dropped and the monitoring frequency be dropped. #6) The total phosphorus optimization study that you have recommended is under consideration at this time. However, we are requesting that the time frame be extended until June 30, 2002. This will allow us to do an in depth study that includes all seasons and give us time to compile our data. #7) With the deletion of in stream monitoring for fecal coliform and conductivity, we will only have to monitor the parameters for dissolved oxygen and temperature. What will these numbers be used for; can we not drop these also? A final concern is #2 of the notes: I would like the complete sentence deleted concerning 85% removal rate. Due to the nature of our waste (80-85 % textile dyes) we have a low number of TSS coming in and low numbers of BOD. However, instead of the normal amount of waste generated by BOD conversions, we have to remove 3 — 4 times the amount of waste. The amount of waste generated creates more solids and pushes us on the 85% removal rate. Please consider the removal of this item. If we were having problems with metals, nutrients, phenols, or any other toxic chemicals, would they not be showing up in our Toxicity testing? We typically have numbers in the negative calculated t values. Also, test results show that the second part of the test does better than the control setup. If there are any other information needed to qualify our comments and test results, the Town of Valdese staff is available to meet with or discuss these objections to the draft NPDES permit. Please contact the Town of Valdese at 828-879-2131 to schedule a meeting if necessary. Thank you for your consideration and assistance in this matter. Sincerely, David "Alan" Abee, Superintendent/ORC Lake Rhodhiss WWTP Cc: Jeff Morse, Town Manager The Wooten Company Wooten Company Engineering Planning Architecture 120 N. Boylan Avenue Raleigh, NC 27603 October 25, 2000 Ms. Jacquelyn M. Nowell NPDES Unit Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Re: Draft NPDES Permit No. NC 0041696 Lake Rhodhiss WWTP Town of Valdese TWC No. 2749 Dear Ms. Nowell: On behalf of the Town of Valdese, Mr. Jeff Morse, Manager of the Town of Valdese, has requested that The Wooten Company advise you that the Town does not agree with the above referenced draft NPDES permit. The areas of objection include: 1. The addition of mercury and sulfate limits 2. The addition of chromium limit 3. The addition of effluent monitoring for copper and zinc 919-828-0531 4. The length of time allowed to conduct the Total Phosphorus optimization Fax: 919-834-3589 study. Since 1936 It is requested that the additional limits not be included in the final permit and that the time for the Total Phosphorus optimization study be extended to June 30, 2002 in order that all seasons can be included in the study. It is further requested that the phrase in Item 2 of the Supplement to Permit cover sheet be revised to read "aeration equipment" rather than "aeration equipment including additional items." The Town staff would also like to provide information and discuss the phenols limits. The Town staff and the staff of The Wooten Company are available to meet and discuss these objections in the draft NPDES permit. Please contact the Town of Valdese to schedule a meeting. Thank you for your assistance in this matter. Sincerely, THE WOOTEN COMPANY Coy M. Batten c: Town of Valdese County Burke NPDES Permit Number NC0041696, Valdese, Town -Lake Rhodhiss WWTP. P. O. BOX 339, Valdese, NC 28690 has applied for a modification for a facility located in Burke County discharging treated wastewater into Lake Rhodhiss (Catawba River) in the Catawba River Basin. Currently BOD5, NH3, DO and phenols are water quality limited. This discharge may affect future allocations in this portion of the receiving stream. f 1 CLIPPING OF LEGAL ADVERTISEMENT ATTACHED HE E Nora NORTH CAROLINA BURKE COUNTY AFFIDAVIT OF PUBLICATION Before the undersigned, a Notary Public of said County and State, duly commissioned, qualified, and authorized by law, to administer oaths, PUBLIC NOTICE' STATE OF NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION/NPDES UNIT 1617 MAIL SERVICE CENTER, RALEIGH, NC 27699-1617 NOTIFICATION OF INTENT TO ISSUE A NPDES WASTEWATER PERMIT On the basis of thorough review and application of NC General Statute 143.21, Public law 92-500 and other lawful standards and regulations, the North Carolina Environmental Management Commission proposes to issue a National Pollutant Discharge Elimination System (NPDES) wastewater discharge permit to the person(s) listed on the attached pages effective 45 days from the publish date of this notice. Written comments regarding the proposed permit will be accepted until 30 days alter the publish date of this notice. All comments received prior to that date are considered in the final determinations regarding the proposed permit. The Director of the NC Division of Water Quality may decide to hold a public meeting for the proposed permit should the Division receive a significant degree of public interest. Copies of the draft permit and other supporting information on file to determine conditions present in the draft permit are available upon request and payment of the costs of reproduction.Mail comments and/or requests for information to the NC Division of Water Quality at the above address or call Ms. Christie Jackson at (919) 733-5083, extension 538. Please include the NPDES permit number (attached) in any communication. Interested persons may also visit the Division of Water Quality at 512 N. Salisbury Street, Raleigh, NC 27604-1148 between the hours of 8:00 a.m. and 5:00 p.m. to review information on lilt. NPDES Permit Number NC0041696, Valdese, Town -Lake Rhodhiss WWTP. P.O. Box 339, Valdese, NC 28690 has applied for a modification for a facility located in Burke County discharging treated wastewater into Lake Rhodhiss (Catawba River) in the Catawba River Basin. Currently BODS, NH3, DO and phenols are water quality limited. This discharge may affect future allocations in this portion of the receiving stream. Notary Public 1 H. Eugene Willard sworn, deposes and says: lisher :BALD, published, issued, and lass mail in Morganton, in said that he (she) is authorized to and sworn statement; that the 1 advertisement, a true copy of hereto, was published in The following dates: R ,wspaper in which such notice, or legal advertisement was to time of each and every such rspaper meeting all of the lualifications of Section 1-597 Mutes of North Carolina and er within the meaning of to General Statutes of North 3ctober, 20 t 0 blisher or Manager ed before me, tober, 2000 MY ea? ssion Expires Y r mission Expires 8-22-2004 Wednesday, September 27, 2000 1617 Mail Service Center. Raliegh. North Carolina 27699-1617 - Telephone 919-733-5083 FAX 919-733-0719 An Equal Opportunity Affirmative Action Employer - 50% Recycled / 10% post -consumer paper DENR/DWQ FACT SHEET FOR NPDES PERMIT DEVELOPMENT NPDES No. NC0041696 Facility Information Applicant/Facility Name: Town of Valdese WWTP Applicant Address: P.O. Box 339 Valdese, N.C. 28690-0339 Facility Address: On Lake Rhodhiss Drive Permitted Flow 7.5 MGD; expansion to 10.5 MGD Type of Waste: Domestic and Industrial Facility/Permit Status: Renewal and Modification Facility Classification IV County: Burke Miscellaneous Receiving Stream: Lake Rhodhiss (Catawba River) Regional Office: Asheville Stream Classification: WS-IV & B CA USGS Topo Quad: D12SE 303(d) Listed?: No Permit Writer: Jackie Nowell Subbasin: 03-08-31 Date: August 30, 2000 Drainage Area (mi2): Lake Summer 7Q10 (cfs) 228.7 (min. release + runoff) . . -: , Winter 7Q10 (cfs): - Average Flow (cfs): - IWC (%): 4.8% @ 7.5 MGD, 6.6% 10.5 MGD Primary SIC Code: 4952 SUMMARY OF FACILITY INFORMATION AND WASTELOAD ALLOCATION The Town of Valdese has requested renewal of existing permit. Facility is a 7.5 MGD plant that discharges into Lake Rhodhiss (the Catawba River). The lake is fully supporting its uses. The receiving stream is classified WS-IV & B CA (critical area). The Catawba River chain lakes have regulated flow from the dams. The minimum flow that has been used in the past WLAs has been 228.7 cfs. Existing limits at 7.5 MGD are BODS= 30 mg/1, NH3 monitoring, TSS =30 mg/1, Fecal = 200/ 100m1, monthly monitoring of TN and TP, a phenols limit of 21 ug/l, chronic toxicity limit of 4.8% in JAN APR JUL OCT. Instream monitoring for DO, fecal, temp and conductivity is currently required. Fecal and conductivity will be dropped. Spec limits for expansion to 9.5 and 11.5 MGD, were completed in 1991 and 1998. DWQ recommended BPJ limits of 15 mg/1 BOD5, 4 mg/1 NH3 and DO > 5 mg/1. May need some revisions of nitrogenous inputs of direct dischargers into the lake. Chronic tox tests of 6 and 7% would also be recommended. Preliminary recommendation for 10.5 MGD - BPJ limits of 15/4/5, TRC = 28 ug/1, phenols and mercury limit, copper, zinc and sulfates monitoring in the NPDES permit, Chronic quarterly test (CP 6.6%. Continued instream monitoring for temperature and DO. Recommend that facility conduct TP optimization study for plant because of elevated effluent TP concentrations. TOXICITY TESTING: Current Requirement: Chronic Ceriodaphnia P/F © 4.8%: JAN APR JUL OCT Recommended Requirement: 1) ® 7.5 MGD - Chronic Ceriodaphnia P/F Q 4.8%; JAN APR JUL OCT, 2) @ 10.5 MGD - Chronic Ceriodaphnia P/F @ 6.6%; JAN APR JUL OCT Has consistently PASSed the tox test since July 1996. Two Late tests in 1998. Last FAILs in April and May 1996. Town of Valdese WWTP Fact Sheet NPDES Renewal Page 1 COMPLIANCE SUMMARY: Thus far in 2000, Valdese has had one permit exceedence for TSS in March. NOV and assessment in 6/00 for the violation of TSS and fecal discharge limits. Averages for Qw= 5.4 MGD, BOD5 = 5.0 mg/1, NH3 = 0.35 mg/1, TSS = 22.1 mg/1 , TN = 3.6 mg/1 , TP = 3.8 mg/1. In 1999, Two exceedences of TSS in June and November. NOV and assessment in 9/99 for the violation of TSS discharge limits. Averages were Qw = 5.2 MGD, BOD5 =5.8 mg/1, TSS = 26.9 mg/1, and NH3 = 0.23 mg/1, TN = 4.4 mg/1, TP = 5.4 mg/1. In 1998, One BOD5 violation and 4 TSS violations. NOV and assessment in 7/98 for the violation of TSS discharge limits. Qw averaged 5.5 MGD, BOD= 7.3 mg/1, TSS = 50 mg/1, NH3 = 0.23 mg/1, TN = 7.4 mg/1, TP = 5.7 mg/1. In 1997, No exceedences of permit limits. Qw averaged 4.9 MGD, BOD= 3.9 mg/1, TSS = 13.4 mg/1, NH3 = 0.39 mg/1, TN = 6.3 mg/1, TP = 7.4 mg/1 Chlorine values are relatively high, the averages ranged from 0.535 mg/1 to 1.04 mg/1. Maximum values reported are 1.9 mg/1 to 4.1 mg/1 INSTREAM MONITORING: Instream monitoring for dissolved oxygen and temperature will be continued. Sites will be upstream 100 feet of discharge point and downstream 1 mile below the discharge at SR1001. Instream monitoring for fecal coliform and conductivity will be deleted due to new DWQ policy. April - October, 1997 - 1999: All data looks good, no instream violations of DO. DO values range from 8 to 10 mg/1, upstream and downstream. There were no exceedances of the fecal coliform standard instream. Instream BOD5 averages 2 mg/1. PROPOSED CHANGES: The following modifications have been made to the permit: • The addition of an effluent page for wasteflow of 10.5 MGD based on the facility's request for expansion due to increased flow from local manufacturing company and future projected growth. • Instream monitoring for fecal coliform and conductivity will be deleted due to new DWQ policy. • The addition of mercury and sulfates limits at 7.5 MGD and 10.5 MGD based on reasonable potential analysis of LTMP data. • The addition of a chromium limit at 10.5 MGD based on reasonable potential analysis of LTMP data. • The addition of copper and zinc monitoring based on reasonable potential analysis of LTMP data. • Facility must conduct a TP optimization study to determine the sources of high effluent TP values. • The addition of a total residual chlorine limit of 28 ug/1 upon expansion to 10.5 MGD. PROPOSED SCHEDULE FOR PERMIT ISSUANCE: Draft Permit to Public Notice: 9/27/00 Permit Scheduled to Issue: 11/20/00 STATE CONTACT: If you have any questions on any of the above information or on the attached permit, please contact Jackie Nowell at (919) 733-5083 ext. 512. DATE: (0 0/0 Town of Valdese WWTP Fact Sheet NPDES Renewal Page 2 03i10i' 1993 02: 38 4 PAGE 02 lr' * u1VAir virriuw.UUMM1 Ni`. Pam/ #Ic . C 4 Ai, 'Le .lr 14 r.7 - .141,LL " T C'4/1A-ci..,I) 11ltz,'G Ue T6STiA/ 4 /7' in U� c 7'•a rr...#41 #c 1 ••rt•,r .;r, r'r r- 11-419: 4rj: r7c' 1.?(1rltr ea. ri ZipAh ::r.�7� 'c'/r'._ rf )"i..• / F'7 f f t • il_A 3 ���i Kf i �ti A /f J f 4dQ r r 1 f 1 r .'1 �� r si.� i .. • �a.fe if Y A E �.' � i s /I7e k"e di ii AP9,5. /7 z /r» KS/ 4,04-.a . £»'F Tc t, (I -5 da f would be_ 41e[1essi/A? i c'',.s-1 bl;s1? 1)A.; f, j)« tie 5 1/04 .41 b;/. 0 oft:: r cs .� �"�• ern/o S, ftd.0 a f rre i W0.y I ice. f ,.r• Re do frmpt.,7ixci NAM fil_22.WS SUPERVISOR COMMENT: Nam. DATE: M — 400 ti ;DATE:(r.V • Town of Valdese WWTP Pact Sheet 4PDEfi Renftwril rT 't-fi'. 1 udU Ol NOI JOBS All itrEi ;11WM W3Q Wild GS 26a oeo2-03-03a REGIONAL OFFICE COMMENT: NAME: DATE: NPDES SUPERVISOR COMMENT: DATE: / 43* Town of Valdese ATITP Fact Sheet NPDES Renewal Page 3 Catawba River Basin, Subbasin 030831 CTB32 'C(X)48 55 O'141245 546 HISS WIT l ; - 3 0 3 Miles • Swi.shp Husb.shp •' Usgs98_83.shp • Npdes6_99.shp + Ambst97_83.shp Majhypl.shp �v Hydrography Mb.shp TOXICANT ANALYSIS acilityName ValdeseWWTP i NPDES # NC0041696 Qw(MGD) 7.5 7Q10s (cfs) 229 IWC (%) 4.83 c'ving Stream Lake Rhodhiss Stream Class WS-IV & B CA FINAL RESULTS_ Chloride ax. Pred Cw 1022000 ug/ Allowable Cw 5174731.2 ug/ Silver ax. Pred Cw 9.5 ug/ Allowable Cw 1.2 ugl Phenols ax. Pred Cw 74.4 ug/ Allowable Cw 20.7 ug/ Copper ax. Pred Cw 189 ug/ Allowable Cw 144.9 ug/ Cadmium ax. Pred Cw 20.4 ug/ Allowable Cw 41.4 ug/ Nickel ax. Pred Cw 27.3 ug/ Allowable Cw 517.5 ug/ Lead ax. Pred Cw 27 ug/ Allowable Cw 517.5 ug/ Zinc ax. Pred Cw 2719.9 ug/ Allowable Cw 1034.9 ugl Chromium ax. Pred Cw 823.9 ug/ Allowable Cw 1034.9 ug/ Cyanide ax. Pred Cw 26.4 ug/ Allowable Cw 103.5 ug/ Mercury ax. Pred Cw 6.24 ug/ Allowable Cw 0.25 ug/ Sulfates ax. Pred Cw 17535900 ug/ Allowable Cw 5174731.2 ug/ frLL VYI.I G FC�II 1 L1M H man IT Limir 12/12/00 TOXICANT ANALYSIS Facility Name Valdese WWTP NPDES # NC0041696 Qw (MGD) 10.5 7Q1Os (cfs) 229 /WC (%) 6.64 c'ving Stream Lake Rhodiss Stream Class WS-IV & B CA FINAL RESULTS Chloride ax. Pred Cw 1022400 ug/ Allowable Cw 37677665.1 ug/ Silver ax. Pred Cw 9.5 ug/ Allowable Cw 0.9 ug/ Phenols ax. Pred Cw 74.4 ug/ Allowable Cw 15.1 ug/ Copper ax. Pred Cw 189 ug/ Allowable Cw 105.5 ug/ Cadmium ax. Pred Cw 20.4 ug/ Allowable Cw 30.1 ug/ ug/ Nickel ax. Pred Cw 27.3 Allowable Cw 376.8 ug/ ug/ Lead ax. Pred Cw 27 Allowable Cw 376.8 ug/ Zinc ax. Pred Cw 2719.9 ugl Allowable Cw 753.5 ug/ Chromium ax. Pred Cw 823.9 ug/ Allowable Cw 753.5 ugl Cyanide ax. Pred Cw 26.4 ug/ Allowable Cw 75.4 ug/ Mercury ax. Pred Cw 17.76 ug/ Allowable Cw 0.18 ug/ Sulfates ax. Pred Cw 17535900 ug/ Allowable Cw 3767,665.1 ugl 444.130Cf .cc tf CIA Ir , (t- itutn (!v%t 12/12/00 TOXICANT ANALYSIS Chloride Parameter= Silver Parameter= Phenols I ;Parameter= Co,.:r E'EAmmeter 250000Aga Standard= 0.06pgll Standard. 1 ug4 i .Standard== = isisjStandard= BDL=1/2DLdualData RESULTS n3DL=1/2D•tualDataRESULTS n3DL=1/2DactualDatRESULTS nBDL=1/2D ual Da RESULTS n 413000 413000 Std Dev. 123M33.38 1 25 <5 Std Dev. 1.15289491 1 5 <10 Std Dev. 7.384595 1 •1 90 Std Dev. 17.322 1 357000 357000 Mean 362555.56 2 25 <5 Mean 2.8125 ii 2 5 <10 Mean 8.790323 2 30 30 Mean 31.944 2 394000 394000 C.V. 0.3407295 3 2.5 <5 C.V. 0.40991819 3 5 <10 C.V. 0.840082 3 27 27 C.V. 0.5423 3 343000 343000 4 2.5 <5 4 5 <10 4 18 18 -- 4 324000 324000 5 2.5 <5 5 5 <10 5 24 24 -_ 5 541003 541003 Mutt Facto' 1.6 6 2.5 <5 Mutt Factor 1.9 6 5 <10 Mult Factor 2.4 6 29 29 Mutt Facto ® 6 639000 639000 Max. Value 639000 ugll 7 2.5 <5 Max. Value 5 pglt;i 7 5 <10 Max. Value 31 pg/li 7 21 21 Max. Value 90 p• ; 7 350000 350000 Max. Pred l 1022400 mg! 8 2.5 <5 Max. Pred ( 9.5 pglf i s i 8 5 <10 Max. Prod ( 74.4 pg/l E : 8 50 E0 Max. Pred 189 . 8 295000 295000 Allowable ( 5174731.2 pgll 9 2.5 <5 Allowable C 1.2 pg/1 i i 9 5 <10 Allowable C 20.7 pg/l i 9 31 31 Allowable • 144,9 p• 9 318000 318000 10 2.5 <5 iiii 10 5 <10 10 28 28 -_ 10 420003 420000I 11 4 <8 11 5 <10 11 26 26 -_ 11 466000 466000 12 4 <8 12 5 <10 12 27 27 - 12 332000 332000 13 5 <10 13 5 <10 13 18 18 13 84000 84000 14 1 <2 14 5 <10 14 _j 14 430000 430000 15 1 <2 15 5 <10 15 27 27 -_ 15 370000 370000 16 5 17 5 <10 16 26 26 __ E 16 270000 270000 17175 (.9 <10172323 -- 17 180003 180003 1818 5 <10 18 25 25 -- 18 19 19 5 <10 19 -_-_ 19 20 20 5 <10 20 20 21 21 23 23 21 ---- E 21 22 22 11 11 22 - 22 23 23 10 10 23 ---_ :' 23 24 24 12.3 12.3 24 :i 24 25 25 10.2 10.2 25 -_-_ 25 26 26 5 5 26 26 27 27 6 6 27 ---_ 27 28 28 12 12 28 ---_ 28 29 29 28 28 29 ---_ 29 30 30 31 31 30 _--_ 30 31 31 24 24 31 31 41' 4%:&,`Att4ct''.w‘ 7/24/00 TOXICANT ANALYSIS Cadmium Parameter. Nickel Parameter= Lead Parameter= Zinc Parameter= Chromlur :;standard = 50 Standard = 25 pgA Standard= 50 pg/l 2 p9/l itandard= 25 rrpll 3DL=12D1ctual Data RESULTS niiDL=12D Actual Data RESULTS iin 3DL=12D 4ctual Data RESULTS n 9DL=12DL‘ctual Data RESULTS n 3DL 12D 100.7 1 4 1 <2 Std Dev. 1.27347 1 10 10 Std Dev. 2.6892 1 15 15 Std Dev. 2.69471 1 681 68 Std Dev. 2 13 13 Mean 5.4444 2 11 11 Mean 6.44444 2 69 69 Mean 61.278 2 4 1 <2 Mean 1.30556 1.6434 3 4 3 35 35 C.V. 0.4939 3 5 <10 C.V. 0.41814 1 <2 C.V. 0.97543 3 7.5 <15 C.V. 4 5 <10 4 32 32 4 4 4 7.5 <15 1 <2 5 4 5 jil f tie 5 5 <10 1 <2 5 2.5 <5 5.9 6 4 6 30 Mult Factoil 2.1 6 5 <10 Muh Facto/ 1.8 1 <2 Mull Facto 3.4 6 2.5 <5 Mult Factor 13 p9 ' 7 5 <10 Max. Value 15 ggif:1 7 27 27 Max. Value 461 pill::: 7 4 1 <2 Max Value 6 ug/I :: 7 5 <10 Max. Value 2719.9 41: i 8 13 27.3 pg/4 8 5 <10 Max. Pred I 27 p9Ai: 8 35 35 Max Pred ( 1 <2 Max Pred 20.4 pg4 ?E'- 8 5 <10 Max. Pred pgA:i 9 45 45 Allowable C 1034.9 pgfri 9 11 517.5 pg/E: 9._ 5 <10 Allowable ( 517.5 1 <2 Allowable ( 41.4 pgll :0; 9 5 <10 Allowable C 10 5 <10 10 25 25 10 9 I <2 10 5 <10 11 5 11 5 <10 11 34 34 1 <2 __ 11 5 <10 12 5<10 12 17 17 12 107 12 5<10 2<4 13 5<10 13 26 26 13 7.5 6 61 13 5<10 14 3 14 52 52 2.5I<5 14 5<10 14 5<10 15 7.5 <15 15 31 31 15 13 15 5 <10 0.5 <1 16 7.5 <15 16 43 43 16 5.7 0.5 <1 16 5 <10 17 6.2 17 7.5 <15 17 33 33 C 5 <1 17 2.5 <5 18 18 7.5<15 18 40 40 0.5<1 18 2.5<5 19 19 19 19 20 20 20 20 21 21 21 • 21 22 22 22 22 23 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 27 27 27 27 28 28 28 28 29 29 29 29 30 30 30 30 31 31 31 31 j111+11J'v4 TOXICANT ANALYSIS t Parameter=I Cyanide Parameter= Mercury I I I P,Brameter= Sulfates pgll R `,Standard= 250000 pgll pg4 Standard- 5 pg4 ;Standard= D.012 tctuel Data RESULTS n 3DL=1/2DActual Data RESULTS n DL=I/2DActual 1. RESULTS n BDL=II2DIActual Data RESULTS <8 ' Std Dev. 24.63159 1 5 5 Std Dev. 3.22473 1 2.4 2. td Dev. 0.5558 1 3507000 3507,p00 Std Dev. 951582.8 <0.2 Mean 02778 2 394000 394000 Mean 697647.1 . <8 Mean 12.25882 2 2.5 <5 Mean 4.85294 2 0.1 3 0.1 <0.2 C.V. 2.0008 3 180000 180000 C.V. 1.363989 <8 C.V. 2.009295 3 10 10 C.V. 0.66449 <8 4 2.5 <5 4 0.3 0.3 4 371000 371 p00 <8 5 9 9 5 0.1 <0.2 5 266000 266 00 .• <8 Mult Factor 7.7 6 11 11 Mutt Factor 2.4 6 0.1 <0.2 Mutt Factor 7.4 6 372000 372000 Mutt Facto, 5 <8 Max Value 107 pglE 7 7 7 Max. Value 11 pgn i 7 0.1 <0.2 Max. Value 2.4 pgl 7 262000 262b00 Max Valua 3507000 tr 1 i 8 0.1 <0.2 Max. Pred 17,76 pg4i 8 426000 426900 Max. Pred 17535900 p9Ai 13 Max Pred 1 823.9 pg8 8 2.5 <5 Max. Pred, 26.4 pg/1 11 Allowable C 1034.9 pglti 9 2.5 <5 Allowable C 103.5 4/1 9 0.1 <0.2 Allowable C 0.2 pgni 9 327000 327000 Allowable C 5174731.2 pgA: 9 i 10 2.5 <5 10 0.1 <0.2 10 348000 348000 11 0.1 <0.2 11 33301>0 333000• <10 11 2.5 <5 2871000 2871900 . 107 12 2.5 <5 12 0.1 <0.2 12 13 0.1 <0.2 13 210000 210000• <15 13 3 <6 <0.2 14 457000 457000 <6 14 3 <6 14 0.1 13 15 8 8 15 0.1 <0.2 15 691000 691000 5.7 16 1 <2 16 0.1 <0.2 16 353000 353900 62 17 8 8 17 0.1 <0.2 17 492000 492800 18 18 0.8 b.B• 18 19 19 19 20 20 20 21 21 21 22 22 22 23 23 23 24 24 24 25 25 25 26 1 26 26 27 27 27 28 28 28 29 29 29 30 30 30 31 31 31 , o4irlYM5try sly tike S 7/24/00 NPDES Long Term Monitoring Request Form Date of Request i!jJ,Q/UO Facility NPDES # Region Requestor NG O� S/I 479 (o Pretreatment A_D Towns- Keyes McGee (ext. 580) Contact E-L Towns- Vacant Position 23) ----S-Z Towns- Steve Amigone (ext 592) Status of Program 1) the facility has no SIU's and should not have pretreatment language aPhe facility has (of-ie-ElevelepiRgi a Pretreatment Program V additional conditions regarding Pretreatment attached or listed below Flow Permitted Actual so % Industrial % Domestic A'^d%a / 1/J/,'" 7/Z//0 L T M P Pollutant Check List POC due to NPDES Limit Required by EPA* Required by 503 Sludge** POC due to SIU"' Site specific POC (Provide Explanation)"" Frequency at effluent BOD \ fa(Ar if M V TSS \ i Q M V NH3 (M) M- NPDES Q M Arsenic Q M 4 Cadmium q Q M '1 Chromium -1 Q M I Copper 4 Q M Cyanide yes 0 M Lead 4 Q M \ Mercury yas Q M Molybdemium Q M 4 Nickel 4 C M Silver ycS C. M Selinium C M I Zinc J M �l CilloglDF IM- 5 f 0-roviLE M N.,Sut FA tc= " „ M \l TN (w) tt.{ -Ntte5 M 'rP (tM) IA, - t'Pu=f M pgeNvl+.L \/ M M 'Always in the LTMP "Only in the LTMP if the POTW land applies sludge "' Only in LTMP while the SIU is connected to the POTW "" Only in LTMP when the pollutant is a specific concem to the POTW (ie-Chloride to a POTW who accepts Textile waste) Q= Quarterly M=Monthly Comments: P0-1.01 geclE.VES i i1 ASre • o 0 Pirti CAV/ /16t Ay — W REMAiN iN t-Twt?. uAlm r Svt�,z� 828 874 5915 a v1 11 0 ce J E a 0 lfl J 7 h Effluent Data 1996 - 2000 Ni Pb ' Zn Chloride CN HL NI-i3-N NO3+NO2 TKN Phenols 'Total P : Sulfate , BOD 'TES 1995 I ! - ---- 2B Mar I <0.005 <0.00 <0.008 0.09 0.01 - 0.0-15 0.066 413 j 0.006 T 0.0008 1.08 1.8 2.16 • <0.01 16_ 1 • 3,507 - 29-Au! <0.005 <0.004 0 013 0.03 <0•.01 : <0.01 0.069 357 '.002 0 60• <0.005' <0.0 0.99 ra.60 <0.01 ' 6.28 . 394 3078ep <0.005 <0,002 <0.008 . 0.027 <0.01 : <0.01 ' 0.035 ! 394 0.01 1 <0.002 <0.6 1.74 4.27 <0.010 4.50 ` 180 10-Dec . <0.008 <0.002. <0.008 0.018 <0.01 <0.01 0.032 ' 343 <0.005! <0.002 <0.6. 0.24 5.516 ' 0.023 5.85 : 371 18-Dec 1 <0.01 1997 I - i 14.0.0002. 1 13-Feh <0.008 0-005 <0.008 0.024 <0.01 ' <0.01 0.461 . 324 0.009 0.24 0.35 I 2.46 <0, 01 • 5.45 ! 266 1.39 5 r 06 ay ' i '• <0.01 13-May I <0.005 <0.002 <0.008 0.029 <0.01 <0.01 0.030 541 <0_005' <0.0002i 1.01 3,50 6.63 <0.01 9.71 372 7.23 13.33 o8-Aug <.01 . 12-Au9 <0.005 <0.002. <0.008 - 0.021 <0.01 • <0015 0.0271 639 0.011 <0.0002 0.33 5.28 - 2.42 <0.01 9.96 ! 262 4.23 14 <0.01 _ 11-Nov . <0.005 <0.002 0.011 1 0.050 <0.01 . <0.016 ' 0.035 350 <0.005 <0.0002 0.203 3.87 6.81 <0.01 7.67 i 426 2.01 27 33 + I 1996 I 0.22 13-Feb <0.005 <0.002. 0.009 0.031 0 013 <0.01 0_045 296 <0005' <0.0002 0.46 4.24 <0.01 ' 5.31 327 3.77 14.66 05-May . ! <0.01 i . _06-May <0.01 <0.002 <0.008. 0.02e <0.01 0.011 0.025 318 <0.008: <0.0002 0.17 TN= 4.48 <0.01 3.58 f 348 = 6.01 17.33 03-Aug , = 1 - <0.01 04-Auu <0.005_ <0.0021 <0.01 0.026 <0.015 <0_01 0.034 420 '-<0.0061 <0.0002 0.2 TN= 5.20 <0.01 6.74 68 333 2.64 -57 04-Nov ' 0.011 . _- _ - 06-tJov , <0.008 <0, 005 0.107 0.027 <0.015 ` <0.015 ' 0.017 466 <0.005 0.0002 0.29 TN= 3.36 0.01 5.197 2871 <2 7 1999 �- • 01-Feb 1 1 <0.01 , Feb <0.005 <0.002 <0.015 _ 0.018 ' <0.01 t <0.0 -0.026 332 :<0.005 <0.0002 0.43 • TN= 3.36! <0.01 2.14 ' 6.25 210 4.37 6 12-May 1 <0.005 <0.<0.006 0.065 • <0_01 <0.01 • 0,052 • 64 <0.005 <0,0002 0.17 TN= 4.46 : <0.01 457t�2.4; 7 10-Aug I r 0.0123 I r 1 1 Aug 1 <0.002 <0.001 0.013 0.027 : <0.005 -<.01 0.031 430 <0.002 0.0003 0.25 TN= 6.252 0.0102 6.88 6911 2.771 8 12-Nov ._ ' 0.005 16-Nov , <0.002 <0.001 <0.0051 0.026 <0.005 <.01 : 0.043 370• 1 0.007 <0.0002 0.15 ; TN= 4.37 I 0.006 6.96 <1 i 2.3 5 t ; 1i--• 1 ° In r~ m Effluent Data 1996 - 2000 Ag Cd I Cr Cu • Ni Pb Zn I Chkride CN I NH3-N NO3+NO2' TKNI Phenols ; Total P [Sulfate BOD TSS 2040 I ! ► 1 1 1 • 07-Feb 1 _ 0.012 08-Feb 0.005 .<0.001 0.0067 1 0.023 1 <0.005' <0.01 0.033 270 0.008 I <0.0002 0.17 TN= 3.1 0.026 " 3.59 353 3.321 5.33 09-Ntay I !<0,001 0.00621 0.025 ' <0.005; <.0.01 0.04 180 0.006 0.0029 0.43 0.324 ! 3.92 t 0.031 =; 4.16 492 2.14. 6 14-May I I I 0.024 j This 4 Is lw/EC— — co o 6 [41 i 1- a L 0 a 0 J E a cv M eo m J h SCR 7/1aJOo (AO 71--r /7 337/1,0-41 -- a/ IA � 4d esy T//f1 �f z/is/97 Ad-,Zei4„/ Gv //1'(% 1 Aft /OP 7/ 'aOk y/i/se. /fie fi r614, X/ 4 Ndv -7 1)/ w �� /f'1, E-Y 1K- f4fp cAl/ntic Itt A) 3/4/ zer0 f t (J v 4 4 !boy z, 7///54 t-(//if.6 n/0V — J 41kV 7-5r CST Ce Yv" 317,,/w1) Ad it (//70-eno ALT VAtrmi ru-i—r /3ZtVP(/ZJ 7S,y` //777F 2 "ele.,,,41)7 'r/0 7,, 5'6 ///r -S f' vz-e- cfie 424.&7- 00). 64'74//mt6,- - 7/zy/f /4-its 47/67% S// 0; r L.2z/(4, u ) 6,ect_ /2„,/c1 /vi/fe GtG4Zf�jfe�•c�i„_ 9tM Rom. 1 ti✓G /^^ Ix mg it/a/r 03, :-6 is 317 q7g ,vim-- I /Y R/(6/ ct, flf, G. - fi� .� 77,8 7/1,/- 11.4,,..1 —Acam, etp.,(.1cE (0( (frf - ii'/6/58 Ociun- 6/%9/iur),-, /2-eto z2/Zw u Ve/tov 0 zeti F/t0y (00 e /0/0/9 ViOB Clz-06 / 4 rcj✓/tl y�c rr 11 g X A, u - AieV -5''/329, V' ( 2Y/UUo )r - Cc1)/1"50 is --�Lja - /,cif= z/,2,�_: 447a3 Mil 4✓ V'Ll•• ti'1 /sff f �.,�� / ° 79 . Yc — • -r / /se-4 ir/t0 3 crv Ul% — 755 r4�/ /4s'.Le s • p For the Town of Valdese, existing data are insufficient to explain the increase in total phosphorus between years 1994 and 1995 (discussed in attached pages). The Town of Valdese's flow and total phosphorus concentrations in recent years are as follows; Flow (MGD) Total Phosphorus :ng/1) (Lbs) 1993 4.8 3.65 53037 1994 4.6 3.48 46347 1995 3.8 6.46 70621 1996 4.4 5.7 - 79550 1997 1.9 7.4 110814 1998 5.5 3.7 96171 1999 5:2 5.3 83895 Factors contributing to Valdese's phosphorous increase may include a change in ORC between 1994 and 1995, solids loss due to clarifier work, and solids loss associated with i&I. The new operator failed to maintain sufficient oxygen concentrations in the aeration basin for a period of time. Additionally, he still at various times tries to maintain an anoxic zone within the aeration basin. Low overall dissolved oxvaen concentrations and anoxic zones may have raised the amount of o=csohorus discharged during 1995 and subsequently. Certain organisms release soluble inorganic phosphorus under anaerobic conditions. The Town of Valdese rebuilt their secondary clarifiers around 1998. Solids loss associated with the clarifier work may have contributed to elevated phosphorus levels. During heavy rainfall the plant frequently experiences loss of solids. Increased effluent suspended matter would somewhat raise teal mass of effluent phosphorus. The City of L= lair's Lower Creek _ t has been under - o ation and recons ction during r ece. years. Construc ' •n related operatio = disruptions are elieved to have b .-n responsible f increa -d phosphorus dis _mrges in year 199 The City enter into CC around 1997 a • just recently c' pleted upgrade _d ex.•_n_sion of the tr rnent facility. since completio of Fall of 1999, e 1 uent phosphor ve averaged 0.6 mg/1 which wo osphorus discha e of 4457 pounds. nstruction in t. concentrations total annual result in a Catawba Permitting • • Subject: Catawba Permitting Date: Fri, 24 Mar 2000 13:01:34 -0500 From: Tom Belnick <tom.belnick@ncmail.net> To: Charles Weaver <Charles.Weaver@ncmail.net>, Dave Goodrich <Dave.Goodrich@ncmail.net> CC: Tom Belnick <Tom.Belnick@ncmail.net> Before you start assigning Catawba files to folks, there are some facilities that may require additional background info noted below. I'll put a copy of this email into those files, to tip off permit writer about issues to address. • Color Dischargers- Currently 8 facilities in Color Alliance, plus Newton which did not join. There will be some language to add in cover letter and possibly permit for these facilities regarding color study. Charles- I'll give you a hardcopy list of these facilities, and I'm o.k. if you assign them to me. • Valdese WWTP- At the ESB meeting this week on Lakes James/ Rhodhiss/Hickory, there was concern about the increasing TP loading from this facility. Although the load does not appear to impact Lake Rhodhiss, we don't know how much will be exported downstream to Lake Hickory, since Rhodhiss doesn't appear to be a TP sink. No need for limits, but Coleen thought we should put something in permit cover letter asking them to evaluate why TP load is increasing; indicate that there is concern about downstream lake; and possibly have them do TP optimization study. Michele W. is looking into how much TP is exported from Lake Rhodhiss to Lake Hickory. Forest W. will have Jim Reid discuss TP situation with facility. Mailto:tom.belnick@ncmail.net N.0 DENR-DWQ/NPDES Unit 1617 Mail Service Center, Raleigh NC 27699-1617 Work: (919) 733-5083 ext. 543 Fax: (919) 733-0719 I of 1 3/24/00 2:15 PM Ze-aa alks6 bi(. '- U/iii.P i�� A.- - Cort/E.3-:/ .* /) U .0 b1/49 /. g. 9 /8 7J -- S b r/f25 8.6 Z y 7.f i/sy '7 9,/ ze 2,6 7/17 4 2' L ?7 9, 7 �/s 9 5 - di, 3 zy, y %° 0 f ;/ 7,1 ,2/. s' 1/ 0, 4; I / /S%9 /(, - 1,>/ Y Zc 7, Zo. Y 7, 7/Ce 25- 3. 7 2 e o, 7 4/Fs 7 el,� u.9 2.7 1/?8 22 Y,/ 078 I, (2796 25. 7,,i'- zr,1 y,; /fe Z° 9, Y-_ zo y Y, , 0 g /, m, y li; y /i, 7 obi /7 T, Y / e 9, Z W911 y e, 7 aY .1, 7 el c, 7 Z. ', 6 U., (., s', o 7/97 -27 I, v Z7,.3 7 6/97 ZZ ,1 ! zz, / f 3 5197 /7 5', 3 /7 5- 9, z 1197 13 A3 /1 %.-. Town of Valdese WWTP Residual Chlorine 7010 (CFS) DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (UG/L) UPS BACKGROUND LEVEL (1 IWC (%) Allowable Concentration (ugi Fecal Limit Ratio of 14.1 :1 228.7 10.5 16.275 17.0 0 6.64 255.89 Ammonia as NH3 (summer) 7010 (CFS) DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (MG/L) UPS BACKGROUND LEVEL IWC (%) Allowable Concentration (m Ammonia as NH3 (winter) 7Q10 (CFS) 200/100m1 DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (MG/L) UPS BACKGROUND LEVEL IWC (%) Allowable Concentration (m 228.7 10.5 16.275 1.0 0.22 6.64 11.96 228.7 10.5 16.275 1.8 0.22 6.64 24.00 NC0041696 9/14/00 Town of Valdese - Meeting with Construction Grants — 7/26/00 Attendees: Allan Wahab — Valdese's Engineer Dan Blaisdell — CG Cecil Madden — CG Dave Goodrich — NPDES Jackie Nowell — NPDES jmn • Valdese is upgrading and expanding their treatment plant from 7.5 MGD to 10.5 MGD • An ATC to upgrade for 7.5 MGD, includes some components sized for 10.5 MGD. However, the aeration equipment is not for 10.5, will need some additional blowers or a way to get additional air to the tank. • Most of plant is industrial flow, wants 10.5 MGD in the permit for future industrial situation. • Valdese wants permit issued for 10.5 MGD in some conditional way. • 201 plan has been approved a year ago. First phase of FONSI to go to 10.5 MGD. In the 20-year projection, 10.5 was justified. • The cost of the upgrade was $5.7M per Cecil Madden. NPDES recommendations on the permit. 1 The addition of a mercury limit @ 7.5 mgd and 10.5 MGD 2. Will add a supplement page of 10.5 MGD and will include specific areas, such as influent pump, aeration equipment, plant outfall and solids handling. 3. Will include 80-90% language in the cover letter. 4. Valdese must do a TP optimization study, i.e. identify sources of TP loads, how to reduce inputs to plant, how to minimize the discharge amounts. No TP limits recommended at this time. FILE No. 121 08/30 '00 14:42 ID:THE WOOTEN COMPANY 9198343589 PAGE 1 The Woolen Company Engineering Planning Architect ore --1INMEN.01.• 120 N. Boylan Avenue rizleign. KC 27603 919.828.0531 Since 1936 FAX COVER SHEET TO: tee`Qw C ATTN: r\ Fax Number: FROM: Fax Number: -3 589 U r - 2000 RE: 1_ C goPt-il vJ c JOB NO. Z7 tAcriir1C:AT7ohl. N'UMJ3LR OF PAGES TO FOLLOW: SPECIAL INSTRUCTIONS: If you do not receive this FAX clearly, or have any questions, please tali 919-828-0531. Transmitted By: Date: 5 Time: FILE No. 121 08/30 '00 14:42 ID:THE IOOTEN COMPANY 9198343589 PAGE 2 VALDESE MANUFACTURING COMPANY A DIVISION OF MZR1DIAN jNgus'n 1Es, INC. July 23, 1998 Mr. Jeffrey V. Morse, Manager Town of Valdese PO Box 339 Valdese, NC 28690 Re: Reserve Wastewater C pacity Valdese Mfg. Dear Mr. Morse: Valdese Mfg Inc. currently has a Town of Valdese permitted capacity of 1 mad reserved in the Town's Wastewater Treatment Plant. According to our discussions, the Town is lathe planning stages,Qf expanding Its Wastewater Treatment Plant and needs to include any planned expansion by Valdese Mfg. Based on our current projections, the company expects to expand our operation in the next 5 to seven years by .5 mgd Therefore,. It is requested that .5 mgd additional capacity be included in the proposed expansion and reserved for Valdese Mfg. If additional information is needed, please advise. Sincerely 7.e/dr%,t_ Tim Slddmore Plant Engineer CORPORATE OFFICE: P.O. DRAMA 10 VALPESlr, N.C. 28890-0010 704-874.2151 FAX 704-8741555 1359 BROADWAY, 8U1'CE 806 NEW YORK, N.Y. 10018 212.967-5970 FAX 212-857-5074 Town of Valdese • Subject: Town of Valdese Date: Thu, 14 Sep 2000 07:30:40 -0400 From: Mike Myers <mike.myers@ncmail.net> To: Jackie Nowell <Jackie.Nowell@ncmail.net> After receiving an Authorization to Construct from the Division of Water Quality, construct and operate additional wastewater treatment facilities and upgrade the existing influent pump station, aeration equipment (including additional aeration), plant outfall, and residuals management facilities. The ultimate design capacity after expansion and modification to existing facilities shall be 10.5 MGD, and Michael J. Myers Environmental Engineer NPDES Unit - Division of Water Quality 1617 Mail Service Center Raleigh, NC 27669-1617 (919) 733-5083 x508 mailto:mike.myers@ncmail.net Michael J. Myers anike.myers@ncmail.net> Environmental Engineer NC DENR DWQ NPDES Unit 1 of 1 9/14/00 8:35 AM UPGRADE AND EXPAND THE EXISTING WASTEWATER TREATMENT FACILITIES VALDESE, NORTH CAROLINA AGENCY: NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES CONTACT: JOHN R. BLOWE, P.E., CHIEF DENR - DIVISION OF WATER QUALITY CONSTRUCTION GRANTS AND LOANS SECTION 1633 MAIL SERVICE CENTER RALEIGH, NORTH CAROLINA 27699-1633 September 17, 1999 FINDING OF NO SIGNIFICANT IMPACT (FNSI) Title VI of the amended Clean Water Act requires the review and approval of environmental information prior to the construction of publicly -owned wastewater treatment facilities financed by the State Revolving Fund (SRF). The proposed project has been evaluated for compliance with the North Carolina Environmental Policy Act and determined to be a major agency action which will affect the environment. Project Applicant: Valdese, North Carolina Project Number: CS370396-07 Project Description: The proposed project consists of upgrading and expanding the existing 7.5 mgd plant to a 10.5 mgd treatment facility. Total Project Cost: $5,766 315 Revolving Loan Amount: $S,116 315 Appalachian Regional Council: $ 200,000 CDBG: $ 450,000 Mitigative measures will be implemented to avoid significant adverse environmental impacts, and an environmental impact st4tement (EIS) will not be required. The decision was based on information in the facilities plan,, a public hearing document, and reviews by governmental agencies. An environmental assessment supporting this action is attached. This FNSI completes the environmental review record, which is available for inspection at the State Clearinghouse. No administrative action will be taken on the proposed project for at least thirty calendar days after the FNSI has been published in the North Carolina Environmental Bulletin. Sincerely, Kerr TC$tevens, Director Division of Water Quality ENVIRONMENTAL ASSESSMENT A. Proposed Facilities and Actions Figure 1 identifies the site of the proposed improvements to the existing wastewater treatment facilities. Treatment Facilities. The existing 7.5 mgd treatment plant will be upgraded and expanded to a 10.5 mgd treatment facility. Improvements to the existing plant consist of replacing the existing bar screen and the grit removal system, modifying the influent pump station, and upgrading the primary clarifiers. Additional improvements consist of new anoxic selector tanks, a secondary clarifier, expanding the chlorine contact tank; and adding dechiorination equipment. Upgrading the treatment plant will require providing diffused aeration and supernatant decantfacilities in an existing sludge holding tank and rebuilding the existing centrifuges. Additional requirements will consist of yard piping, site grading, and electrical work. The effluent will continue to be discharged into the Catawba River. The sludge will continue to be composted and provided to the public as a soil amendment or conditioner. B. Existing Environment Topography and Soils. The town of Valdese is located in Burke County. The topography ranges from approximately 1,000. feet above mean sea level in the northeast section of the area to 1.843 feet above mean sea level in the southwest section. The dominant soil association is Pacolet-Cecil. Soils are generally very deep and well drained with clay subsoils. Surface Waters. The service area is located in the Catawba River Basin. The effluent from the town of Valdese's wastewater treatment plant is discharged into the Lake Rhodhiss section of the Catawba River. An analysis of water quality in Lake Rhodhiss indicates there is significant nutrient loading from agricultural runoff, urban stormwater, and effluent discharges from wastewater treatment plants. The Catawba River Basin Management Plan has been developed to reduce the loading to the nutrient enriched waters in the Catawba River Basin. Water Supply. The town of Valdese's water supply comes from the impounded Lake Rhodhiss section of the Catawba River. The effluent from the wastewater treatment plant is discharged downstream of the water supply intake point. C. Existing Wastewater Facilities The town of Valdese operates a 7.5 mgd wastewater treatment plant with the effluent discharged into the Lake Rhodhiss section of the Catawba River. The existing plant was constructed in 1983, and several modifications occurred in subsequent years. Major treatment processes/components consist of mechanical screening, aerated grit removal, influent pumping, primary clarification, extended activated sludge system. secondary clarification. chlorine disinfection. gravity sludge thickening, sludge dewatering by centrifuge. and aerated static pile sludge composting. The existing wastewater treatment plant is operating at approximately 67 percent of the design capacity. Approximately 83 percent of the total flow entering the wastewater treatment plant comes from commercial, institutional, and industrial users. In addition to providing central collection and treatment service for all of the approximately 4,200 Valdese residents, the town also provides wastewater treatment service for eastern Burke County and Rutherford College. The town of Valdese also processes a portion of the flows from the towns of Connelly Springs, Drexel, and Hildebran. An analysis of the flows indicated that infiltration and inflow (I/I) were non -excessive according to the rating criteria. However, the treatment plant experiences high flows during significant rainfall events, and a sewer rehabilitation program will continue to identify and remove excessive amounts of inflow entering the collection system. D. Need for Proposed Facilities and Actions The town of Valdese operates a 7.5 mgd wastewater treatment plant in which some of the equipment is too deficient to maintain consistent compliance with the parameters of the NPDES permit. The existing effluent limitations are BOD5=30 mg/1. TSS=30 mg/1, Fecal Coliform=200/100 ml. and pH=6.0-9.0 SU. The town desires to expand the existing treatment plant to serve the future needs of a growing service area. Additionally, the treatment plant needs to be upgraded to comply with the Catawba River Basin Management Plan. Speculative effluent limitations for the proposed 10.5 mgd treatment plant are BOD5=15 ma/1, TSS=30 mall. Fecal Coliform=200/100 ml. NH3-N=- mall, Dissolved Oxygen=5 mg/1, Residual Chlorine=17 Aug/1, and pH=6.0-9 0 SU. In addition to the need to provide more stringent treatment to protect nutrient enriched waters in the Catawba River Basin, the proposed facilities will also be upgraded and expanded to produce compost that can be distributed to the public for beneficial uses. E. Alternatives Analysis The town of Valdese needs tomake significant improvements to the existing wastewater treatment facilities to process future flows. to achieve more stringent effluent limitations, and to comply with the requirements of 40 CFR, Part 503. Accordingly, a facilities plan was prepared, and several alternatives were evaluated. The "no -action" alternative was determined not to be practical due to the inability of the existing plant to process the projected hydraulic flow, comply with stringent effluent limitations. and protect water quality in the Catawba River Basin. An optimum plant operation will not achieve the desired results because additional treatment capacity is required. and the existing treatment facilities do not have the capability to consistently comply with the future effluent limitations. A land application system was determined not to be the most feasible solution for solving the wastewater treatment problems. The existing treatment plant has some deficient equipment that can be repaired or upgraded, and adequate space is available to add new facilities to process the projected flow for the future. This alternative has the lowest present -worth value. and it is the selected alternative. F. Environmental Consequences, Mitigative Measures All of the proposed improvements will take place at the existing treatment plant site. The site has been previously cleared, and is well isolated from residential areas. None of the proposed facilities will be located in a wetland or floodplain area. A sedimentation and erosion control plan will be implemented to control adverse runoff to streams. The Department of Cultural Resources is not aware of any properties of architectural, historical, or archaeological significance that would be affected by the project. North Carolina's Wildlife Resources Commission does not object to the proposed project. The U.S. Fish and Wildlife Service evaluated the proposed plan and requested additional information to make an assessment about the potential impact of direct and secondary effects to fish and wildlife resources. Additional information was provided, and.the_Service has determined that the proposed project will not affect endangered or threatened species. The Service has stipulated that obligations under Section 7 of the Endangered and Threatened Species Act must be reconsidered if 1) new information reveals that the proposed action may affect listed species or critical habitats in a manner that were not previously considered. 2) the proposed action is subsequently modified in a manner that was not considered in the review. or 3) a new species is listed or critical habitat is determined that may be affected by the proposed action. The Service also encourages the town of Valdese to ensure that measures such as the Zoning Ordinance and the Watershed Protection Ordinance be implemented to ensure long-term protection of riparian areas. The Service has further requested the town to voluntarily encourage the protection of riparian buffers along all watercourses If to minimize the effects of wildlife habitat fragmentation. 2) to improve streambank stability, 3) to reduce stormwater runoff and 4) to improve water quality. G. Public Participation, Sources Consulted A public hearing was held January 11, 1999 on the proposed project to upgrade and expand the wastewater treatment plant. No opposition to the proposed project has been expressed. A resolution was passed by the town council to implement the proposed project. A Valdese customer using 5,000 gallons of water currently pays $8.08 per month for sewer service. The proposed project will result in a typical customer paying approximately $9.35 per month for sewer service. Sources consulted about this project for information or concurrence included: 1) Town of Valdese 2) North Carolina Department of Environment and Natural Resources -Wildlife Resources Commission -Division of Parks and Recreation -Division of Air Quality -Groundwater Section -Division of Environmental Health -Water Quality Section -Division of Pollution Prevention & Environmental Assistance -Division of Forest Resources -Asheville Regional Office -Legislative and Intergovernmental Affairs 3) North Carolina Department of Cultural Resources 4) North Carolina State Clearinghouse 5) U.S. Fish and Wildlife Service (,1512 r . • —L A KE - Filt�i'a io�• _ d ; P`anC•,r;; —, Valdese, . % •� ti _� , i E;akeiiiear is j' oh' /• ; ( ;1?Valdes •:;• O. rrth Laurel - - _ : S.,1• .4 Ch • .. - - -• - - (aldese -� ' i r 7 r (` Ic: •�j- �,I r.. .• • • f- ..........._ i, ........?....• \-c•-•7-.---- - ., _ • `• ` ' L_ �s� ,xEe.�., . =te.. ~•,,• ' t 1545 *� a9a ' �I' Vaidese • p- • • • �-� ' • I ; 1'•s8,1 i• •. i•• © ��• •! • i•• i •" , •, "i•rralrf1 -�•• ''— _ • „• • • • •• �it ' : ••• •. � • ;l•• ••I�/l. �r r1515,• • 01. --CATAWBA-f-Cas r Brit. • ./( r• • .0 /?.-._ _ •L •� ' :-,` . .t %!., • f'R� therzord C 'Y ••MM( oih�� u•, ., Creek 0/ a, .•(: • it - • • • \ .•� �� / 'te.`„ • • • T',$ O • ti • .. /tea "- •..' I -, R• — :'.. r-: -._, ' %- ,-l•_•,'•, • ;�` �; F3td a 1 sue.—+�'.• • •�•v •�tj'� - •�7� • • • ._ G• '�•?��� -_.�� _--_•__� �4 • 1;1° ' • -...• • • • h j .,, ' \ -.t • r • l/ f O': •/./ �� 1 r. . •'•1, • • r••^_ /1 �� r� -_ ••J� - • i '' . I--`'_ r y sF if,J ••,\' t;6A---ram • • ' ; Cem , _ / •. _ ' _ _ ° • 1 _ • ...1 ', 1331: ;1733, �"' Cem r �� �• �. ./• 7.-•---� i ;34/ (/ „• • . I) Boningers , --- - — ,• ° x.. � -( ,; •, 1, �.-▪ _ r ^�• .•. Chapel Cem - -.' ,, / `. . • • '..,��,, • ;,'� , • Ili LOCATION MAP• 00 0 r • 1l • • • — agnPOSE'? ':"•r A STE A ER IMPROVEMENT`- ENGINEERING NARRATIVE IN SUPPORT OF REQUEST FOR MODIFICATION OF NPDES PERMIT NO. NC0041696 TOWN OF VALDESE BURKE COUNTY, NORTH CAROLINA This application package is being submitted on behalf of the Town of Valdese in request for amendment of NPDES Permit No. NC0041696 issued for the operation of the Lake Rhodhiss Wastewater Treatment Plant. The current NPDES Permit for 7.5 MGD expired May 31, 2000 and the Town submitted a request for renewal of subject permit in November 1999. The Town is awaiting response on their November 1999 renewal request from the Division of Water Quality. This modification is being requested to increase the capacity of the treatment plant from 7.5 to 10.5 MGD. An increase in plant capacity is needed to accommodate 500,000 gallons per day of additional wastewater expected from the Valdese Manufacturing Company and to handle future wastewater treatment needs of anticipated residential, commercial, and industrial growth in the Valdese portion of the regional Burke County 201 Facilities Planning Area. The Lake Rhodhiss Wastewater Treatment Plant was constructed in 1983 to provide secondary treatment for an average daily flow of 7.5 MGD with BODS and TSS concentrations of 300 mg/1 and 200 mg/1, respectively. This facility serves 5 municipalities including eastern Burke County, with a total population of approximately 13,430 persons, and 10 Significant Industrial Users. Effluent limitations established in the NPDES Permit (No. NC0041696) for the plant discharge into the Catawba River are summarized in Table 1. The unit operations/processes at the plant include mechanical screening, aerated grit removal, influent wastewater pumping, primary clarification, extended aeration type activated sludge system, chlorine disinfection, gravity sludge thickening, sludge dewatering by centrifuge, aerated static pile sludge composting, and influent and effluent flow metering. Composted sludge is given away to the public as a final disposal method. Detailed design data for the plant are given in Table 1. The upgrading and expansion of the Lake Rhodhiss Wastewater Treatment Plant by -in -large involves the replacement of the existing equipment that is in deteriorated conditions, upgrading equipment within the existing treatment structures and the addition of new facilities. The expansion of the treatment plant is primarily to accommodate the requested reserve wastewater treatment capacity by the existing textile industries in the Town of Valdese. The Town requested an Authorization to Construct (ATC) from the Construction Grants & Loans Section (CG&L) for expansion of the existing 7.5 MGD WWTP to 10.5 MGD. The ATC submittal included the provision of new anoxic selector tanks, 110' diameter secondary clarifier and RAS/WAS pump station and the expansion of the existing chlorine contact tanks to handle the expanded plant capacity to 10.5 MGD. However, the ATC was only issued for the upgrade of the 7.5 MGD facility and not the 10.5 MGD expansion. CG&L required that the following items be addressed before an authorization to expand to 10.5 MGD could be granted: 1. Modification of the current 7.5 MGD NPDES permit to 10.5 MGD. 2. Provision of additional influent pumping capacity. 3 . Provision of additional aeration capacity in the aeration basins. 4. Provision of additional effluent outfall capacity. 5. Expansion of the sludge composting facilities. Page 3 of 25 Lake Rhodhiss WWTP Valdese, North Carolina NPDES No. NC0041696 In an effort to keep construction costs down, the Town has elected to construct items 2 through 5 above at a later time and proceed with the remainder of the plant upgrade and expansion as approved in the ATC. It should be noted that the 201 Facilities Plan was approved by the State for a 10.5 MGD expansion with stipulated conditions of expansion of the influent pumping capacity, aeration facilities, composting facilities and effluent outfall capacity at a later date (i.e prior to exceeding the present permitted flow of 7.5 MGD). Flow projections for the Town of Valdese service area indicate that the plant will reach the average daily flow capacity of 7.5 MGD in the year 2008. This means that in the year 2007 the plans and specifications for the above mentioned future improvements will have to be submitted to the State for approval and the construction of the said improvements will have to be completed in the year 2008. In consideration that expansion of the influent pumping capacity, aeration capacity in the aeration basins, effluent outfall capacity and sludge composting facilities will take place at a future date, it is requested that the new NPDES Permit be issued with effluent limitations for flows of 7.5 MGD and 10.5 MGD respectively. For 10.5 MGD flow the NPDES Permit will include the following stipulated conditions: 1. When the plant average daily flow reaches 6.75 MGD (90% of 7.5 MGD) flow, the Town shall prepare and submit the plans and specifications for expansion of the influent pumping capacity, aeration capacity, sludge composting facilities, and effluent outfall capacity to handle the average and peak daily flows of 10.5 MGD and 26.25 MGD, respectively. 2. Receive Authorization to Construct for proposed improvements outlined in item 1 above within six months following submission of plans and specifications and advertise for bids. 3. Complete construction within 12 months after the issuance of the Notice to Proceed. 4. Achieve compliance with the effluent limitations set forth in the 10.5 MGD NPDES Permit within six months after the completion of construction. The proposed improvements (Figure 1) approved in the ATC are described as follows: 1. Provide a headworks by-pass structure with 1 1/4-inch manually cleaned bar screen. Replace the existing deteriorated mechanical screens and screenings conveyor with new screens with 3/8" screen opening and a new double hopper screenings compactor. The screens with smaller openings are needed to avoid pump and sludge line clogging and to enhance and improve quality of the biosolids compost product. 2. Replace the existing grit removal equipment with grit equipment of stainless steel construction. 3. Provide new pump control panel for the four existing influent pumps. The new pump controls will include two variable speed drives for the two 12-inch pumps and improved operating conditions for all pumps for improved overall plant performance. Replace motors of the existing 12-inch pumps for operating compatibility with variable frequency drives. Also, replace the impeller wear rings and bearings of both the 12-inch pumps. Page 4 of 25 Lake Rhodhiss WWTP Valdese, North Carolina NPDES No. NC0041696 4. Replace drive unit of the primary clarifier no.2. Remove the existing turbine drives (flocculation drives) from primary clarifier no. 2. Also, install a new 20 ft. diameter feedwell in primary clarifier no. 2. Sandblast and paint access bridge supports, drive mechanisms, and scraper mechanisms of both the primary clarifiers. 5. Provide anoxic selector tanks (designed to provide 1.5 hr. hydraulic retention time of average daily flow of 10.5 MGD) upstream of the aeration basins for selectively limiting the growth of filamentous organisms and subsequent controlling sludge bulking. The anoxic selector tanks will also help remove nutrients from the wastewater. the splitter box and the anoxic tanks will be handled as an alternate bid. A decision for construction of those items will be contingent upon the project bid cost and availability of funds. 6. Provide new reduced voltage (soft start) starters for all of the existing 100 Hp platform mounted aerators (six total) in the aeration basins. 7. Provide an influent splitter box for the secondary clarifiers. 8. Provide density current baffles in the existing two (2) - 110 ft. diameter secondary clarifiers for improved performance. Also correct leakage along the effluent weirs of both the clarifiers. Provide one (1) new 110 ft. diameter secondary clarifier to handle the expanded plant capacity of 10.5 MGD. The new clarifier will be handled as an alternate bid and a decision for construction of this item will be contingent upon the project bid cost and the availability of funds. 9. Provide a new submersible RAS/WAS Scum pump station equipped with two 2,625 gpm capacity sludge recirculation pumps, two 400 gpm capacity WAS/Scum pumps and necessary controls for the RAS/WAS/Scum pumps. Each RAS pump will be equipped with a manually adjusted variable frequency drive. The new RAS/WAS pump station will be handled as an alternate bid and a decision for construction of this item will be contingent upon the project bid cost and the availability of funds. 10. Expand the chlorine contact tanks to handle the design average daily flow of 10.5 MGD. Provide new chlorine residual analyzer and pace the chlorinators with effluent flow and total chlorine residual analyzer. Provide new chlorine gas leak detector and cylinder scales for the chlorination system. 11. Provide sulfur dioxide storage and feed facilities, and controls for dechlorination of chlorine contact effluent prior to discharge. 12. Provide diffused aeration system in the unaerated sludge holding/thickening tank (existing gravity sludge thickener). Provide supernatant decant facilities in both aerated holding/thickening tanks (modified existing gravity sludge thickeners). Remove all unnecessary super structure from the tanks. 13. Provide a new polymer feed system capable of using dry or liquid emulsion type polymer for dewatering of gravity thickened combined primary and waste activated sludge by the existing centrifuges. Page 5 of 25 Lake Rhodhiss WWTP Valdese, North Carolina NPDES No. NC0041696 14. Rebuild both the existing centrifuges to high solids centrifuges technology and bid this item as an alternate. The decision for rebuilding the centrifuges will be contingent upon the project bid cost and the availability of funds. 15. Provide new surge protection devices for all existing control panels. Provide a new computer monitoring (SCADA) system. Provide a new standby generator and automatic transfer switch for the influent pump station and headworks. The existing standby generator will serve the remaining unit operations/processes at the plant. 16. Upgrade water supply system to supply 2-inch hydrants at locations necessary to perform good housekeeping and maintenance work. Construction of the above improvements is scheduled to begin this fall and be completed by the spring of 2002. Page 6 of 25 TABLE-1 DESIGN DATA OF THE LAKE RHODHISS WASTEWATER TREATMENT PLANT VALDESE, NORTH CAROLINA NPDES PERMIT NO. NC0041696 Design Wastewater Characteristics Average daily flow, mgd 7.5 Maximum daily flow, mgd 15 Peak daily flow, mgd 18.75 BOD5 (Biochemical Oxygen Demand, 5 day at 20° C), mg/L 300 TSS (Total Suspended Solids), mg/L 200 NH3-N (Ammonia Nitrogen), mg/L 20 Total Phosphorus as P, mg/L 13 Effluent Limitations (NPDES Permit No. NC0041696) Parameters Monthly Avg. Weekly Avg. Flow, mgd 7.5 BOD, 5 day, 20° C, mg/L 30 45 Total Suspended Residue, mg/L 30 45 NH3-N, mg/L -- -- Fecal Coliform (geometric mean, #/100 mL 200 400 D.O. Mg/L -- -- pH, Standard Units 6.0 - 9.0 6.0 - 9.0 Total Nitrogen (NO2+NO3+TKN), mg/L Total Phosphorus as P, mg,L Phenol, ug/L 21 (Daily maximum) Chronic Toxicity PASS/FAIL at 4.8% (Quarterly) Mechanical Screening Mechanical Screens: Number of units, vertical self-cleaning type 2 Unit capacity, mgd, each 18 Channel width, inch 48 Bar (3/8" x 2 1/4" size) spacing, inch c/c 1'/8 Screen opening, inch 0.75 Drive horsepower, hp 1 Electrical service 460 Volts, 3 Phase, 60 Hertz Accessories: Timer, Shear pin overload, discharge chutes and control panel Screening Coveyor: Number of unit, continuous belt type 1 Unit capacity, cu ft/hr 200 Belt width, ft 2 Belt speed; fpm, maximum 100 Drive horsepower, hp 1 Electrical service 460 Volts, 3 Phase, 60 Hertz Accessories: Timer, sheur pin overload, discharge chutes and control panel Page 7 of 25 Lake Rhodhiss WWTP Valdese, North Carolina TABLE-1 NPDES No. NC0041696 (continued) Aerated Grit Removal System Grit Chamber: Number of units 2 Unit capacity, mgd, each 15 Channel width, ft. 5 Channel length, ft. 42 Grit Collector: Number of units, chain and bucket type 2 Unit capacity, cu ft/hr., each at 10 fpm, maximum 12 Collector speed, fpm 10 Drive horsepower, hp 3/4 Electrical service: 460 Volt, 3 Phase, 60 Hertz Accessories: Timer, shear pin overload, discharge chutes and control panel Grit Conveyor: Number of units, continuous belt type 1 Unit capacity, cu ft./hr 200 Belt width, ft. 2 Belt speed, fpm, maximum 100 Electrical service 460 Volt, 3 Phase, 60 Hertz Accessories: Timer, shear pin overload, discharge chutes and control panel Influent Pumps 12-inch Pumps: Number of pumps, vertical, non -clog, centrifugal type two speed 2 Pump capacity, gpm, each at 700 rpm, 75 ft. TDH 3,000 at 880 rpm, 80.5 ft. TDH 6,800 Drive horsepower, hp, each at 700 rpm, 75% eff. 125 at 880 rpm, 80% eff. 200 Impeller (2 vane type) size, inch, each 23 3/4 Solids size pass through capacity, inch, maximum 5 Electrical service: 460 Volts, 3 Phase, 60 Hertz Accessories: Overload protection and automatic operation by bubbler level control system 16-inch Pumps: Number of pumps, vertical, non -clog, centrifugal type 2 Pump capacity, gpm, each 585 rpm, 81 ft. TDH 7,200 Drive horsepower, hp, each at 585 rpm, 81% eff. 200 Impeller (2-Vane type) size, inch, each 30 1/4 Solids size pass through capacity, inch, maximum 6 3/4 Electrical service 460 Volts, 3 Phase, 60 Hertz Accessories: Overload protection and automatic operation by bubbler level control system Page 8 of 25 Lake Rhodhiss WWTP Valdese, North Carolina NPDES No. NC0041696 TABLE-1 (continued) Primary Clarifiers Number of units, 100 ft. Diam. x 13 ft SWD, each Type Unit volume, gal., each Total volume, gal Hydraulic retention time, hr, at avg. daily flow of 7.5 mgd at max. daily flow of 15.0 mgd at peak daily flow of 18.75 mgd Unit surface area, sq. ft.7,850 Total surface area, sq. ft. Surface overflow rate, gpd/sq ft. at ave. daily flow of 7.5 mgd at max. daily flow of 15.0 mgd at peak daily flow of 18.75 mgd Unit weir length, ft. Total weir length, ft. Weir loading rate, gpd/LF at ave. daily flow of 7.5 mgd at max. daily flow of 15.0 mgd at peak daily flow of 18.75 mgd Rake drive horsepower, hp, each 3:1 variable speed Number of turbine, each unit Turbine recirculation capacity, mgd Turbine tip speed, fps, maximum Turbine drive horsepower, hp, each 5:1 variable speed Reaction well hydraulic retention time, min., minimum Electrical service Accessories: FRP weir plate and scum baffle, scum removal and torque overloadprotection and alarm Note: The primary clarifiers were designed to be used as reactor clarifiers. The reaction well and turbines are removed from one of the clarifiers and at present both clarifiers are used for conventional primary clari- fication. 2 Solid contact, reactor type 763,334 1,526,668 4.88 2.44 1.95 15,700 478 955 1,194 314 628 11,942 23,884 29,856 2 2 12 4 3 20 460 Volt, 3 Phase, 60 Cycle Primary Sludge/Scum Pumps: Primary Sludge Pumps: Number of pumps, horizontal, induced flow dry pit type 2 Pump capacity, gpm, each at 1,430 rpm, 65 ft TDH 175 at 780 rpm, 18.5 ft TDH 300 Drive horsepower, hp, at 1,430 rpm, 30% eff. 10 at 780 rpm, 43% eff. 2.5 Drive type 4:1 varidrive with adjustable steps Impeller (recessed) size, inch 10 Electrical service 460 Volt, 3 Phase, 60 Hertz Accessories: Timer controls, low level cut-off switch and overload protection. Page 9 of 25 Lake Rhodhiss WWTP Valdese, North Carolina TABLE-1 NPDES No. NC0041696 (continued) Scum Pumps Number of pump, horizontal, induced flow, dry pit type 1 Pump capacity, gpm, at 1,430 rpm, 65 ft TDH 175 at 78 rpm, 18.5 ft TDH 300 Drive horsepower, hp, at 1,430 rpm, 30% eff 10 at 780 rpm, 43% eff 2.5 Drive type 4:1 varidrive with adjustable steps Impeller (recessed) size, inch 10 Electrical service 460 Volt, 3 Phase, 60 Hertz Accessories: Timer controls, low level cut-off switch and overload protection. Aeration Basins: Number of basins 2 Basin volume, gal., each 1,990,000 Total basin volume, gal. 3,980,000 Hydraulic retention time, hr., at avg. Daily flow 12.74 Number of 100-hp aerators in each basin 3 Total number of 100-hp aerators 6 Total installed aeration horsepower, hp 600 Aerator oxygen transfer capacity, lb 02/hp/hr at standard conditions 3.2 Total installed aeration capacity, hp/1,000 cu ft 1.127 hp/mil. Gallon 150.75 lb 02/hr 1,920 Electrical service 460 Volt, 3 Phase, 60 Hertz Secondary Clarifiers: Number of unit, 110 ft diam. x 14 ft SWD, each 2 Type Center feed Unit volume, gal 994,683 Total volume, gal 1,989,366 Hydraulic retention time, hr, at avg. daily flow 6.36 Unit surface area, sq ft 9,498.5 Total surface area, sq ft 18,997 Surface overflow, gpd/sq ft, at avg. Daily flow 395 Unit weir length, LF 345.4 Total weir length, LF 690.8 Weir overflow rate, gpd/LF, at avg. Daily flow 10,857 Rake drive horsepower, hp 1 Electrical service 460 Volt, 3 Phase, 60 Hertz Accessories: FRP weir plate and scum baffle, scum removal and overload protection and alarm. Sludge Recycle Pumps: Number of pumps, vertical, non -clog, centrifugal 2 Page 10 of 25 Lake Rhodhiss WWTP Valdese, North Carolina NPDES No. NC0041696 TABLE-1 (continued) Pump capacity, gpm, each Two pump capacity, gpm, Drive horsepower, hp, each at 228 rpm, 8 ft TDH at 355 rpm, 16.5 ft TDH at 355 rpm, 20.0 ft, TDH at 228 rpm, 80% eff. at 355 rpm, 81% eff. Electrical service 460 Volt, 3 Phase, 60 Hertz Accessories: Varidrive with adjustable stops, low level cut off switch and alarm. Waste Sludge/Scum Pumps: Number of pumps, vertical, induced flow type, two speed Pump capacity, gpm, each at 880 rpm, 21 ft TDH(') at 1,180 rpm, 41 ft TDH (2) Bath pump capacity, gpm at 1,180 rpm, 30 ft TDH a) Drive horsepower, hp, each at 880 rpm, 38% eff. at 1,180 rpm, 33% eff. at 1,180 rpm, 38% eff. (3) Electrical service 460 Volt, 3 Phase, 60 Accessories: Timer, low level cut off switch and alarm. (>) for sludge/scum pumping to primary clarifiers (2) for sludge/scum pumping to thickeners (3) for sludge/scum pumping to primary clarifiers by two pumps Sludge Thickeners Number of units, 60 ft.diam. x 12 ft SWD Unit surface area, sq ft Total surface area, sq ft Hydraulic loading rate, gpd/sq ft Solids loading site Drive horsepower, hp, each Rake lift drive horsepower, hp, each Electrical service Accessories: Automatic control for rake lift and torque overload protection. Note: One of the sludge thickener is converted to be used as aerated sludge holidng/thickening tank. Centrifugal Feed Pumps Number of pumps, progressive cavity type Pump capacity, gpm, each, minimum at 20 psi TDH maximum at 40 psi TDH Drive (5:1 varidrive) horsepower, hp, each Electrical service Accessories: RPM/gpm tachometers, remote electric speed controls on drives. 2,800 5,250 4,100 7.5 30 2 500 400 1,000 7.5 13.5 25 Hertz Page 11 of 25 2 2,826 5,652 42.5 8.5 3 2 460 Volt, 3 Phase, 60 Hertz 2 50 250 20 460 Volt, 3 Phase, 60 Hertz Lake Rhodhiss WWTP Valdese, North Carolina TABLE-1 NPDES No. NC0041696 (continued) Centrifuges Number of centrifuges, horizontal, solid bowl type 2 Hydraulic capacity, gpm, each 115 Solids capacity, lb/hr 8,500 Feed solids concentration, % dry wt basis, combined lime - biological sludge 10-14 Solids recovery, percent, no polymer addition 60 2.51b polymer/dry ton, maximum 95 Discharge Cake solids, percent, minimum, no polymer addition 25 Drive horsepower, hp each at 1,800 rpm 150 Electrical service 460 Volt, 3 Phase, 60 Hertz Accessories: Control panel, lube oil pump, safety shutdown, fault protection system Aerated Static Pile Composting Total composting area, sq ft 116,760 Active compost area, sq ft 26,400 Bulking agent (wood chip): dewatered sludge ratio 3:1 Composting period, days 21 Curing period, days 30 Number of aeration blowers 4 Aeration blower capacity, cfm at 3,450 rpm 335 Page 12 of 25 Sulfur Dioxide Feed System Effluent Chlorine Contact Tank Chlorine 7 Feed System (10.5 MGD) Composting Area Drainage Thickener _ Gravity Overflow / Thickeners Sludge Dewatering Building Influent Pump Station Grit Removal System Mechanical Screening lk (10.5 MGD) Raw Wastewater (0.141 MGD TOTAL) Primary Sludge/ Scum Pump Station (5.25 MGD) fl►. (10.5 MGD) Secondary Clarifiers • Waste Sludge (7 MGD ea.) Primary Clarifiers (21.0 MGD) • � T SB (5.25 MGD) (• Denotes Influent Flow + RAS Flow) \-411-- -- Sludge Recirculation/ __-- Waste Pump Station FIGURE 1 TOWN OF VALDESE LAKE RHODHISS WASTEWATER TREATMENT PLANT IMPROVEMENTS SCHEMATIC FLOW DIAGRAM NPDES NO. NC0041696 (7.0 MGD) Secondary Clarifier r- Anoxic Tank (21.0 MGD) • J I (10.5 MGD) Anoxic SB (10.5 MGD) Anoxic Tank RAS/ WAS Pump Station LEGEND Wastewater Sludge Existing Facilities Proposed Improvements New Facilities (MGD) Flow Volume C0 ADF :1 s•N a • • 1 ' 1189 .Iri: t. • / Lf noir -_-_- • Jar--• DISCP.ARGE £,QJNT ' • :- ti; �- , -'-- VALDESE WASTEWATER TREATMENT PLANT • . . .--. - CATAWBA RIVER (LAKE RllOD1ESS) l •.r r .: . . ..- 1. ... .... :13-.,,,:.' . _:: ''f‘t:1::‘ .. : . , , .,....7.::ii, --;....N:: . -•• • t . . • • '• .North Lciurd • • Ch • • 1. . • • ..a, .••• ;a:),..\ )5• 1 • Q 1.•-�� ``�R c� �'0/' ter r `)`: o \ N• �. �� �.• :,••' :!?' '• !1 �\� \ - •+ice.,-,�rr•�- � a . ..7-..1111. 4 f too , f ' ••� • , ,' C ' - ~ -• •ir. ( - ._ . ram. • ✓ - . a •• >>,'� \; --' .\-% '• Ott' -',: _ Qom► +1'~^'. �'�:''': C-`�1•• 'L:=j �• r eL),1 .-s�� : " ..may � 4 Q;� `'s•a,� • ' �I. •'•O 1�. J_"''s . [. r.. �\ tt4titerfor(1..Co is'g,(' .. enori8l ch. �• e�Cln �. .• Location Map Town of Valdese WWTP Discharge Point Source: USGS - Drexel Quad, NC jft/r.r h Scale 1:24 000 Page 14 of 25 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs SECTION I1. BASIC DISCHARGE DESCRIPTION Complete this section for each present or proposed discharge indicated in Section 1. All values for an existing discharge should be representative of the twelve previous months of operation. (If this is a proposed discharge, values should reflect best engineering estimates.) 1 . Facility Discharges, Number and Discharge Volume (see instructions) Specify the number of discharges in this application and the volume of water discharged or lost to each of the categories below. Estimate average volume per day in MGD. Do not include intermittent discharges, overflows, bypasses or seasonal discharges from lagoons, etc. Discharge To: Number of Discharge Points Total Volume Discharged (MGD) Surface Water 1 10.5 Other (describe below) TOTAL 1 10.5 If 'other' is specified, describe: 2. Outfall Number: 001 Assign a three -digit number beginning with 001 for the point of discharge covered by the first description. Discharge serial numbers should be consecutive for each additional discharge described; hence, the second serial number should be 002, the third 003, etc. 3. Discharge to End Date If the discharge is scheduled to be discontinued within the next 5 years, give the date (with best estimate) the discharge will end: Give the reason(s) for discontinuing this discharge in your cover letter. 4. Receiving Stream Name Name the waterway at the point of discharge. Use the name of the waterway by which it is usually designated on published maps of the area. If possible, refer to one of the map series published by the U.S. Geological Survey. If the discharge is to an unnamed tributary, please so state; and give the name of the first body of water fed by that tributary which is named on the map, e.g., Unnamed tributary to McIntire Creek, where McIntire Creek is the first water way that is named on the map and is reached by the discharge. Catawba River (Lake Rhodhiss) 5. Outfall Structure Describe the outfall structure and any significant changes since the last permit was issued (repairs, shoreline maintenance, etc.). 28" diam. sewer pipe discharges effluent 760 feet into Lake Rhodhiss Page 15 of 25 r NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 111 for each Significant Industrial User. 1 . Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Alba Waldensian. Inc. Street address: P.O. Box 100 City: Valdese County Burke State: North Carolina Zip Code 28690 Telephone Number (828 ) 879-6567 Fax Number (828 ) 879-1745 e-mail address fredwillis@albal.com 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Raw Material Quantity Units Ladies Undergarments 4,000 Ibs/day 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.083 MGD jg Intermittent ❑ Continuous Page 16 of 25 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows 1 MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 11! for each Significant industrial User. 1 . Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Burke Mills. Inc. Street address: P.O. Box 190 City: Valdese County Burke State: North Carolina Telephone Number Fax Number e-mail address Zip Code 28690 (828 ) 874-6341 (828 ) 879-7176 neilwright@burkemills.com 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Raw Material Quantity Units Yarn 65,000 Ibs/day 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.361 MGD 1 Intermittent O Continuous Page 17 of 25 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section lU for each Significant Industrial User. 1 . Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: ' has a flow of 50,000 gallons or more per average workday; ' has a flow greater than 5 percent of the total flow carried by the municipal system receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Carolina Mills Street address: 705 Lovelady Road City: Valdese County Burke State: North Carolina Telephone Number Fax Number e-mail address Zip Code 28690 (828 ) 879-1040 (828 ) 879-1549 mmoose@carolinamills.com 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Raw Material Quantity Units Fabrics and Cloth 120,000 lbs/day 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 1.117 MGD WI Intermittent ❑ Continuous Page 18 of 25 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows al MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 111 for each Significant Industrial User. 1 . Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Houston Hosiery Street address: P.O. Box 939 City: Valdese County Burke State: North Carolina Zip Code 28690 Telephone Number Fax Number e-mail address n/a (828 ) 874-8680 (828 ) 874-8681 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Raw Material Quantity Units Socks 5,000 lbs/day 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.029 MGD II Intermittent 0 Continuous Page 19 of 25 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows >_ 1 MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section III for each Significant Industrial User. 1 . Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU VNC Street address: P.O. Box 340 City: Valdese State: North Carolina Telephone Number Fax Number e-mail address n/a County Burke Zip Code 28690 (828 ) (828 ) 874-4126 874-4455 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Raw Material Quantity Units Fabric and Cloth 35,000 Ibs/day 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.589 MGD 12 Intermittent 0 Continuous Page 20 of 25 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 111 for each Significant Industrial User. 1 . Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Robinson Hosiery Street address: P.O. Box 730 City: Valdese County Burke State: North Carolina Zip Code 28690 Telephone Number Fax Number e-mail address (828 ) (828 ) n/a 874-2228 879-1660 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Raw Material Quantity Units Socks 4,000 Ibs/day 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.024 MGD lS! Intermittent O Continuous Page 21 of 25 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows >_ 1 MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 11l for each Significant Industrial User. 1 . Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Valdese Manufacturing Company Street address: P.O. Drawer 10 City: Valdese County Burke State: North Carolina Telephone Number Fax Number Zip Code 28690 (828 ) 874-2151 (828 ) 874-2189 e-mail address Ewoods@meridianandyedyam.com 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Raw Material Quantity Units Yam 40,000 lbs/day 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.770 MGD 21 Intermittent 0 Continuous Page 22 of 25 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows k 1 MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 111 for each Significant Industrial User. 1 . Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: ' has a flow of 50,000 gallons or more per average workday; ' has a flow greater than 5 percent of the total flow carried by the municipal system receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Valdese Textiles Street address: P.O. Box 490 City: Valdese State: North Carolina Telephone Number Fax Number e-mail address n/a County Burke Zip Code 28690 (828 ) (828 ) 874-4216 874-4218 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Raw Material Quantity Units Upholstery Fabric 4,900 lbs/day 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.130 MGD 1g Intermittent O Continuous Page 23 of 25 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows >_ 1 MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 111 for each Significant Industrial User. 1 . Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: ' has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Valdese Weavers Lovelady and RC Street address: P.O. Box 70 City: Valdese County Burke State: North Carolina Telephone Number Fax Number e-mail address Zip Code 28690 (828 ) 874-2181 (828 ) 874-8925 KCIark@ValdeseWeavers.com 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Raw Material Quantity Units Upholstery Fabric 27,000 lbs/day 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.656 MGD B1 Intermittent 0 Continuous Page 24 of 25 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows 1 MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 111 for each Significant Industrial User. 1 . Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; ' has a flow greater than 5 percent of the total flow carried by the municipal system receiving the waste, or ' has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Waldensian Bakery Street address: P.O. Box 220 City: Valdese County Burke State: North Carolina Zip Code 28690 Telephone Number Fax Number (828 ) 874-2136 (828 ) 874-4910 e-mail address bonnerrx@egr.com 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Raw Material Quantity Units Baked Goods 450,000 lbs/day 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.071 MGD lg Intermittent 0 Continuous Page 25 of 25 Company Engineering Planning Architecture 120 N. Boylan Avenue Raleigh, NC 27603 919-828-0531 Fax: 919-834-3589 Since 1936 July 25, 2000 Mr. Dave Goodrich, P.E. Supervisor - NPDES Unit NCDENR - Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Re: Request for NPDES Permit Modification Town of Valdese Lake Rhodhiss Wastewater Treatment Plant Improvements TWC No. 2749-C PC001/4ik tiA41) z_(lc>(- � b/vG‘O $S(c.0-00 Dear Mr. Goodrich: On behalf of the Town of Valdese, we are submitting this application package in request for amendment of NPDES No. NC0041696 issued for the operation of the Lake Rhodhiss Wastewater Treatment Plant. This modification is being requested to increase the capacity of the treatment plant from 7.5 MGD to 10.5 MGD. Enclosed please find the following items: 1.) Five copies of NPDES Permit Application - Standard Form A 2.) Check in the amount of $860.00 If you should have any questions or need additional information, please contact me at (919)828-0531. Sincerely, OTEI MPANY arles W. Davis, P.E. Enclosures c: Mr. Jeffrey V. Morse, Town Manager, Town of Valdese valdese Subject: valdese Date: Mon, 29 Nov 1999 16:35:30 -0500 From: Susan Wilson <susan.a.wilson@ncmail.net> To: Charles Weaver <Charles.Weaver@ncmail.net> jeff morse (former commission member) with town of valdese is fed ex-ing their renewal application and boy was he confused about question 5 re. total industrial flow. i think he put down total ind. flow for month on one answer then daily flow on the next answer. just put this note with file and whoever gets it can call them or check with pretreatment re. industrial %. thanks. 4 1 of 1 11/30/99 6:09 AM GENERAL CONSTRUCTION a. Provide headworks bypass structure with manual bar screen. b. Replace two (2) existing mechanical bar screens with two (2) new mechanical bar screens. c. Replace existing screenings conveyor with new dual hopper screenings compactor. d. Replace two (2) existing chain and bucket grit collectors with two (2) new chain and bucket grit collections. e. Replace two (2) existing 125/200 Hp motors for influent pumps 1 & 2 with two (2) new 200 Hp motors. f. Provide new pump control panel for existing influent pumps with new ultrasonic level controller and two (2) new variable frequency drives for influent pumps 1 & 2. g. Provide new rake drive for primary clarifier No. 2 and sandblast and paint clarifier mechanisms for two (2) primary clarifiers. h. Provide new anoxic basin splitter box. i. Provide new anoxic basins. j. Provide new clarifier splitter box. k. Provide new 110' diameter secondary clarifier. I. Sandblast and paint clarifier mechanisms for two (2) existing 110' diameter secondary clarifiers. m. Provide new RAS/WAS pump station with pump control building. n. Provide chlorine contact chamber additions. o. Provide new dechlorination building with sulfur dioxide feed equipment. P. Provide new chlorine feed equipment. q. Replace two (2) existing polymer feed systems with two (2) new polymer feed systems. r. Provide new diffused aeration system for thickener No. 2. s. Remove existing rake mechanisms for two (2) 60' diameter sludge thickeners. t. Provide new SCADA system and instrumentation. u. Site work, erosion control and plant piping. v. Electrical work for the major work items as listed above, unless specifically noted otherwise. CATAWBA SIVER I a 1\ •'��-7�_ `�F CLEARING 1040 4: 1 TOGIti SEE !TOTE MOTE ♦ PROJECT OETIGI.AN I TOP RIM EXISTING M N. ELEVATION 100032 ..) \ ` NITRIFICATIONBASIN NO 2 ♦ TOWN OF VALDESE,N.C.1 G OBRIEN&GERM WACTGWATFIa GA(`II JTIGC 1051 1040 -- LIMITS QF CLEARINGI AREAS ARE S TO DE NCTS IIA9(DII� •--405O - EXISTING CONTOURS -1000- FINISHED CONTOIAS GRADING PLAN G 5 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs ECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 111 for each Significant Industrial User. Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Waldensian Bakery Street address 320 Main Street, East City Valdese Burke County State Zip Code 28690 NC Telephone Number Fax Number e-mail address ( 828 ) 874-2136 Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Bakery Flow Raw Material Quantity Units water 0.1200 MGD Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.1200 MGD ❑ Intermittent ❑ Continuous 4 of4 • NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section Ill for each Significant Industrial User. 1. Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Valdese Weavers (Rutherford College) Street address 1000 Perkins Road, SE City Valdese Burke County State NC Zip Code 28690 Telephone Number Fax Number e-mail address ( 828 ) 874-2181 ( 828 ) 874-1592 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product textile 3. Flow Raw Material Quantity Units water 0.4500 MGD Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.4500 MGD ❑ Intermittent ❑ Continuous 4 of 4 SIC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with perwiltcd flows > 1 MGD or with pretreatment programs SECTION I11. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 111 for each Significant Industrial User. 1. Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Valdese Weavers (Lovelady) Street address 280 Crescent Street, NE City Valdese Burke County State 28690 Zip Code Telephone Number ( 828) 874-2181 Fax Number ( 828 874-1592 NC e-mail address 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed., Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product textiles 3. Flow Raw Material Quantity Units water 0.3250 MGD" Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.3250 MGD ❑ Intermittent ❑ Continuous 4 of 4 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section Ill for each Significant Industrial User. 1. Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday: ..••• ••• _ • • has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Valdese Textiles Street address 1901 Main street, E City Valdese State NC Zip Code 28690 Burke County Telephone Number Fax Number e-mail address ( 828 ) 874-4216 ( 828) 874-4218 2. Primary Product or Raw Material j . • , h pecify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product textile water Raw Material Quantity 0.3971 Units MGD- 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.3971 MGD ❑ Intermittent [] Continuous 4 of 4 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs SECTION I11. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 11! for each Significant industrial User. 1. Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a How greater than 5 percent of the total How carried by the municipal system m receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where Iwo or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Valdese Manufacturing Co. Street address 312 Columbo Street SW City Valdese State NC Telephone Number Fax Number e-mail address County Burke Zip Code 28690 ( 828 ) 874-2151 ( 828 ) 874-2189 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product textile Raw Material water Quantity 1.500 Units MGD 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 1.500 MGD ❑ Intermittent ❑ Continuous 4 of 4 1C DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs SECTION I11. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section III for each Significant Industrial User. 1. Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Kathy Hosiery Street address Columbo Street City Valdese Burke County State NC Zip Code 28690 Telephone Number Fax Number e-mail address ( 828) 879-8121 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product textile 3. Flow Raw Material Quantity Units water 0.0660 MGD Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.0660 enGD ❑ Intermittent ❑ Continuous 4 of4 SC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section I1! for each Significant Industrial User. 1. Significant industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SiU Island Textiles Street address 340 Morgan Street, SE City Valdese County Burke State NC Telephone Number Fax Number e-mail address Zip Code 28690 ( 828) 874-4126 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SiC categories should use the units of measurement normally used by that industry. Product textiles 3. Flow Raw Material Quantity Units water 1.0295 MGD Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 1.0295 MGD ❑ Intermittent 0 Continuous 4ofa 9 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 111 for each Significant Industrial User. 1. Significant industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Carolina Mills Street address 705 Lovelady Road, NE City Valdese Burke County State NC 28690 Zip Code Telephone Number Fax Number e-mail address (828 ) 879-1040 2. Primary Product or Raw Material ,.2.- Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product textiles Raw Material water Quantity 1.400 Units MGD 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 1.400 MGD ❑ Intermittent ❑ Continuous 4o14 N°C DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted flows > 1 MGD or with prclrcatinent prograins 0 SECTION 1I1. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 111 for each Significant Industrial User. 1. Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; • has a How greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Burke Mills, Inc. Street address City Valdese 191 Sterling Street, NW County Burke State NC Zip Code 28690 Telephone Number ( 828) 874-6341 Fax Number e-mail address 2. Primary Product or Raw Material Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product Raw Material Quantity Units textile water 0.6917 MGD" 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.6917MGD ❑ Intermittent ❑ Continuous 4of4 NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A Municipal Facilities with permitted !lows > 1 MGD or with pretreatment programs SECTION III. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM Submit a separate Section 11! for each Significant Industrial User. 1. Significant Industrial User (SIU) An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW. Specifically, an SIU: • has a flow of 50,000 gallons or more per average workday; ••• . .. • has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or • has a toxic material in its discharge. It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination can produce an undesirable effect on either the municipal facility or the quality of its effluent. Name of SIU Alba Waldensian, Inc. Street address 201 St. Germain Avenue City Valdese State County Burke Zip Code 28690 NC Telephone Number Fax Number e-mail address ( 828 ) R7Q-6cnn ( 828 ) 879-6527 2. Primary Product or Raw Material • Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed. Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of measurement normally used by that industry. Product textile Raw Material water Quantity 0.1325 Units MGD 3. Flow Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous 0.1325 MGD ❑ Intermittent ❑ Continuous 4 of4 SLUDGE COMPOSTING PERMIT NO. WQ 0001990 TOWN OF VALDESE Lake Rhodhiss Wastewater Treatment Plant, NPDES Permit No. NC0041696 Process Description: Composting at the Lake Rhodhiss Plant uses the aerated static pile method. In this technique, forced aeration is utilized to accelerate the natural composting process in order to achieve temperatures in the pasteurization range within the 21 day composting period. The 21 day composting period is an arbitrarily selected minimum requirement and may be extended when circumstances require longer composting periods. Dewatered sludge from the plant centrifuges is trucked to the composting pad and dumped into a waiting bed of bulking agent. The bulking agent used at our facility is wood chips and/or veneer. The sludge cake is mixed with the bulking agent by repeatedly turning the pile with a front end loader. The normal mix ratio is approximately 2:1 bulking agent to sludge cake. The mix ratio is adjusted by the compost operator to provide a suitable mix dryness. Efforts are to be made to minimize the formation of sludge balls. Mixing continues until the mixture is suitably uniform. A bed is constructed for the compost pile consisting of approximately 12 inches of bulking agent extending the entire length of the pile. Two aeration pipes (four inch diameter slotted plastic drainage pipe) is placed under the bed and extends for one hundred feet with the ends connected. The bed is necessary to help evenly distribute the flow of air through the pile, and to absorb water drainage from the pile. The pile is constructed by loading the sludge/bulking agent mixture onto the prepared bed by the front end loader. Effort is made to avoid compacting the compost by dropping the mixture to hard on the pad or running the loader tires into the pile. The height of the piles must also be limited to ten foot in order to prevent compacting of the bottom layers. Pile construction utilizes the extended pile method. Each new pile is built as an addition to the sides of an existing pile to produce an unbroken line of continuous piles. Separate piles will be identified for monitoring and tear down by a temperature log kept by the compost operator. The extended pile method is chosen to minimize heat loss through the sides of the piles. Pile construction is completed by covering the built pile with at least a one foot layer of finished compost to serve as an insulating blanket. Less may be used on an exposed side that will accept another extended pile addition. Final dimensions will be somewhat variable but the pile addition will be approximately 100'L / 12'W / 10'H . Aeration is accomplished by (1/2 HP) blowers operating on timed cycles. Each blower serves a single pile with two air/drainage pipes. Aeration commences as soon as 1/2 of a compost pile is built. Initial aeration rates are typically 5 minutes on and 30 minutes off. Aeration time is increased after pasteurization temperatures have been achieved in order to increase moisture removal from the piles. After a minimum of 21 days of active composting, the compost pile can be transferred to a curing pile for a minimum of 30 days. In the curing pile the compost will have the opportunity to undergo further stabilization and reduction of pathogens. Height of curing piles will be limited to 10 feet in order to encourage self -ventilation and to prevent compacting of the lower portions of the pile. The compost operator will maintain a daily log of all activities on the compost site. After completion of the curing period, a portion of the compost will be spread on the compost pad to air dry to make a dry product. After air drying, a portion of the compost mixture will be loaded into the Royer-Mogenson shredder/sizer unit. Here the finer particles of the compost mixture will be discharged to a fine compost pile while the larger particles are separated and discharged in to a bulking agent recycle pile. The recycled material will be used in conjunction with fresh bulking agent to build new compost piles. The finished material will be made available to the general public and any commercial users who may be interested at no cost. Compost may also be obtained without screening for certain applications. Monitoring and Analysis Program Pile temperatures are monitored at three points on each end of the extended pile cell. Point No.1H is the toe position on the blower(head) end of the pile. This point is monitored at 2 feet above the concrete pad and 2.5 feet into the pile (including blanket). Point No.2H is the compost/blanket interface at approximately 4 feet above the concrete pad (2 feet into the pile). Point No. 3H is the pile interior at approximately 7 feet above the pad (3 feet into the pile). Points No.'s 1T, 2T, and 3T are the equivalent points on the end of the pile opposite the blower (tail). These points should represent the lowest temperatures in the pile owing to air cooling effects on the head end and limited air supply on the tail end. Given a reasonably uniform pile construction all other points in the pile may be assumed to reach a higher temperature than the monitoring points. Monitoring criterion are based upon the Control of Pathogens and Vector Attraction in Sewage Sludge under 40 CFR Part 503 regulations. Process to Further Reduce Pathogens as states in 40 CFR 503.32(a)(7), Appendix B(1) mandate when using the static aerated pile method of composting, the temperature of the sewage sludge must be maintained at 55 degrees C or higher for three consecutive days. All points will be monitored twice daily until the this condition has been met. Vector Attraction Reduction requirements will be met through 40 CFR 503.33(b)(5) which states "the sewage sludge must be aerobically treated for 14 days or longer during which time the temperature must be over 40 degrees C and the average temperature higher than 45 degrees C". Piles not meeting this criteria will be recycled by mixing with fresh sludge cake and bulking agent. Final compost product is monitored quarterly by an independent lab for metals of interest and annually for insecticides and organic's of interest. Nutrient analysis will also be performed on a quarterly basis. Fecal Coliform analysis (MPN) will be performed twice per month. Results of all analyses is reported to the Division of Environmental Management. All testing results and temperature monitoring data will be kept on file and is accessible to the public. Lake Rhodhiss Wastewater Treatment Plant Sludge Composting Facilities: The composting site at the Lake Rhodhiss Wastewater Treatment Plant consists of two acres of concrete surface(5" non -reinforced) and another 3/4 acre of paved area. The site is sloped and ditched to provide drainage of all leachate and run-off back to the head of the treatment plant. The site will presently accommodate up to 11 extended pile "cells" of 100 feet in length. A metal storage shelter provides 5,000 square feet of dry storage for chips, curing, or finished compost. The Royer-Mogenson shredder/sizer unit is mounted under one corner of the metal shelter. A 928-F CAT loader is available for composting operations. Ten blowers and five spares are available for the aerated static piles. The Lake Rhodhiss Wastewater Lab is also available and equipped for fecal Coliform (MPN) analysis. Water hydrants are available on site for wetting down the pad and a street washing truck is available if necessary. Distribution and Records: Distribution records consists of copies of receipts for all compost distributed. The receipt will list the name of the person receiving the compost, the quantity, and the date of acquisition. One copy of the receipt is given to the patron while the other copy is filed and maintained at the plant for a period of seven years unless the Division of Environmental Management suggests a longer period. Technical questions regarding the use of the compost may be answered by the treatment plant's staff or by contacting the Burke County Agriculture Extension Service. Compost may be distributed in screened or un- screened form. Monitoring and analysis records will also be maintained on file at the plant for a period of at least seven years. 1 270 feet Town of Valdese Composting Facilities -4 1120 feet r .paved Area 4 _ 420. feet t 50 feet 1 Ditch 1 t�•- `' tlauhole Concrete Pavement u---�--r- :Heist 01%elter ,•✓' ; f •. Screening Equipment 120 feet Catclil, J.u_t Concrete Ditch Active Composting Arca • • Concrete Ditch 22U feet • • 216 feet Compost Aeration Blowers 450 feet 4. r • i • • Pile Cross Section Blankets; 3E. 11 Lengthwise View Compost Pile • 6' Sludge Cake/Bulking Agent Mix I''''IAX XYVV/61 :;',(11 A'1' v,-1-1' t.rk,r,r/ Approx. 80' - • ... 1 Bed • 2T • 1' Blower Extended Pile Cross . Section End View Pile No.1 J J Pile No. 2 Pile No. 3