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HomeMy WebLinkAboutNC0026042_Permit (Issuance)_20001215NPDES DOCUHENT SCANNING COVER SHEET NC0026042 Robersonville WWTP NPDES Permit: Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Correspondence Speculative Limits Instream Assessment (67b) Environmental Assessment (EA) Permit History Document Date: December 15, 2000 This document is printed on reuse paper - ignore airy content or the reirerse side ANIL Alft State of North Carolina Department of Environment and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Bill Holman, Secretary Kerr T. Stevens, Director December 15, 2000 The Honorable Frank Measamer, Mayor Town of Robersonville P.O. Box 487 Robersonville, North Carolina 27871 AT;!cvA XCDE\R Subject: NPDES Permit Issuance Robersonville WWTP Permit No. NC0026042 Martin County Dear Mayor Measamer: In accordance with the application for discharge permit, the Division is forwarding herewith the subject NPDES 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. Because a determination has not yet been made with regard to the Town of Robersonville's inclusion in the Tar Pamlico Nutrient Trading Association (the Association), Special Condition A.(3.) shall remain in the permit at this time. This condition requires that Robersonville meet effluent nutrient limits by June 30, 2001 if Robersonville is not accepted into the Association. Please notify the Division of Water Quality, NPDES Unit. as soon as the Association has made its decision. 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, Mail Service Center 6714, 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 except after notice to the Division of Water Quality. The Division of Water Quality may require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Quality, the Division of Land Resources, the Coastal Area Management Act, or any other federal or local governmental permit. If you have any questions regarding the NPDES permit, please contact Susan Wilson at (919) 733 - 5083, extension 510. Sincerely, Original Signed By K SYAPsOdric' cc: Washington Regional Office/Water Quality Section Central Files Point Source Compliance and Enforcement Unit NPDES Unit Aquatic Toxicology Unit EPA Region IV, Roosevelt Childress 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 VISIT US ON THE WEB AT http://h2o.enr.state.nc.us/NPDES Permit No. NC0026042 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 provisions of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Water Quality Commission, and the Federal Water Pollution Control Act, as amended, Town of Robersonville Robersonville Wastewater Treatment Plant is hereby authorized to discharge wastewater from a facility located at Robersonville WWTP On NCSR 1158, south of Robersonville Martin County to receiving waters designated as Flat Swamp in the Tar Pamlico River Basin in accordance with the discharge limitations, monitoring requirements,' and other conditions set forth in Parts I, II, III, and IV hereof. This permit shall become effective January 1, 2001. This permit and the authorization to discharge shall expire at midnight on November 30, 2004. Signed this day December 15, 2000. Original Signed By David A. Goodrich Kerr T. Stevens, Director Division of Water Quality By the Authority of the Environmental Management Commission Robersonville WWTP NPDES No. NC0026042 s, SUPPLEMENT TO PERMIT COVER SHEET Town of Robersonville Robersonville WWTP is hereby authorized to: Permit No. NC0026042 1. Continue to operate an existing 1.8 MGD wastewater treatment facility consisting of: • mechanical bar screen • influent pump station • dual oxidation ditches • 5 secondary clarifiers • 4 tertiary filters • chlorine contact chamber with chlorine disinfection • post aeration • aerated sludge digester and holding tank, located at Robersonville WWTP, Martin County, and 2. Discharge wastewater from said treatment works at the location specified on the attached map into Flat Swamp which is classified C-Sw NSW waters in Tar Pamlico River Basin. Robersonville WWTP NPDES No. NC0026042 I. • 20 20 • Ceirt E i Drive-in Theater r2? abersonvi .I.j .F !d t�� ��'r: �r r •��l' ���BM2• COAS Athle Latitl35°481 40" 50zllaEin: 03-04-04 L Qngirudc ?7° 15' 30" 2uadi: 0295E, Robersonvilie West Stream.Cla56: C-5w, NSW 3ereiving 51ream: Flat Swamp, Tar Pamlico River Basin 'emitted Flow; 1.5 MGD x 22.5 0214 • 1 20r Town of Robersonville NC0026042 a• A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge 1.8 MGD of municipal wastewater from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below: Effluent Iuent Characteristics . Limits Monitoring Requirements Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Locations Flow 1.8 MGD Continuous Recording Influent or Effluent BOD, 5 day (20°C)2 5 mg/I 7.5 mg/I Daily Composite Influent & Effluent Total Suspended Residue2 30 mg/I '� 45 mg/I Daily Composite Influent & Effluent NH3 as N -lea( t ° 2.0 mg/1 " �/ Daily Composite Effluent Dissolved Oxygen3 Daily Grab Effluent Dissolved Oxygen 3/Week Grab Upstream & Downstream Fecal Coliform (geometric mean) 200/100 mi 400/100 ml Daily Grab Effluent Fecal Coliform (geometric mean) = 3/Week Grab Upstream & Downstream Total Residual Chlorine Daily Grab Effluent Total Nitrogen4 �_____-- Weekly Composite Effluent Total Phosphorus 4 Weekly Composite Effluent Temperature (2C) Daily Grab Effluent Temperature (2C) . 3/Week Grab Upstream & Downstream -Cenductivity- ---- _ -- - _... __ ._ 3/Week Grab Upstream.&— Downstream Chronic Toxicity5 Quarterly Composite Effluent Mercury6 0.013 ug/I Weekly Composite Effluent Copper • 2/Month Composite Effluent Zinc 2/Month Composite Effluent Iron Quarterly Composite Effluent pH7 6-9 Daily Grab Effluent (Footnotes on next page) Robersonville WW'IP NPDES No. NC0026042 A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL (Continued) Footnotes: 1. Sample locations: Upstream at NCSR 1158, Downstream at NCSR 1505. Stream samples shall be grab samples and shall be collected 3/Week during June - September and 1 /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 concentration shall not be less than 6.0 mg/1. 4. Should Robersonville not be accepted into the Tar Pamlico Nutrient Trading Association, total nitrogen shall be limited at 6 mg/1 (monthly average) and total phosphorus shall be limited at 1 mg/1 (monthly average); limits be required by June 30, 2001. See Nutrients Special Condition A.(3). 5. Chronic Toxicity (Ceriodaphrtia dubia) P/F at 90%: February, May, August, and November [see Special Condition A.(2)]. Toxicity monitoring shall coincide with any metals monitoring. 6. The quantitation limit for mercury shall be 0.2 µg/1 (0.2 ppb). Levels reported as "<0.2 14/1" shall be considered zero for compliance purposes. 7. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. There shall be no discharge of floating solids or visible foam in other than trace amounts. Robersonville WWTP NPDES No. NC0026042 A. (2.) CHRONIC TOXICITY PERMIT LIMIT (QRTRLY) The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphnia dubia at an effluent concentration of 90 %. The permit holder shall perform at a minimum. auarterly 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 February, May, August, and November. 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: North Carolina Division of Water Quality Environmental Sciences Branch 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. Robersonville WWTP NPDES No. NC0026042 A. (3.) NUTRIENT SPECIAL CONDITION Limits on total phosphorus and total nitrogen have not been included at this time because the facility is proposing to become a member of the Tar Pamlico Nutrient Trading Association (the Association), which is a nonpoint source trading option outlined in the Tar Pamlico NSW Implementation Strategy Phase II, adopted December 8, 1994. If compliance with any element of this strategy, or subsequent approved revisions to the strategy is not maintained, the Division reserves the right to reopen this permit to include nutrient limits. If requirements other than those listed in this NPDES permit are adopted as part of a future revision to the strategy, the Division reserves the right to reopen this permit to include these requirements. If the Town of Robersonville is not accepted as a member of the Association, limits for total nitrogen and total phosphorus will be imposed as of June 30, 2001. The limits and monitoring frequencies will be as follows: Total Nitrogen = 6 mg/1 (based on a monthly average of weekly samples) Total Phosphorus = 1 mg/1 (based on a monthly average of weekly samples) Additionally, should the Town of Robersonville .expand and not be a member of the Association, the facility will continue to be subject to limits for total phosphorus and total nitrogen, as well as offsetting the additional nutrient load by funding nonpoint source control programs [ref. 15A NCAC 2B .02291. Robersonville WWTP NPDES No. NC0026042 PUBLISHER'S AFFIDAVIT NORTH CAROLINA MARTIN COUNTY: Dallas F. Coltrain being duly sworn, says that he is publisher of The Enterprise, a newspaper published twice a week at Williamston, Martin County, North Carolina, and that the advertisement, a true copy of which is hereto attached, entitled 'LIDuf,.. I ItaAJtc .) was published in said The Enterprise on the following dates: (\)e . I1 &cCCl and that the said newspaper in which such notice, paper, document or legal advertisement was published, was, at the time of each and every publication, a newspaper meeting all of the requirements and qualifications of Chapter 1, Section 597 of the General Statutes of North Carolina and was a qualified newspaper within the meaning of Chapter 1, Sectipn597 of the General Statutes of North Carolina. ,Ne`\IPNLAN0 'r,�, i se.— - .... 4.- VSWo' n to and subscribed before me this a.r ! 3 tlo`l" o r '. n it,.'.. 1, •� c",: \A -,,,:04 (Notary Public) (Publisher) My commission expires 2-11-2005 " day PUBLIC NOTICE STATE OF NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION/ NPDES UNIT 1617 MAIL SERVICE CENTER RALEIGH, NC 27699-1617 NO TOINTENT ISSUE A NPDES WASTEWATER PERMIT On the basis of thorough staff review and application of NC General Statute 143.21, lawfulPublic laws9 standards and2-500 other regulations, the North Carolina Environmental Management Commission proposes to issue a National Pollutant Discharge Elimination System (NPDES) wastewater discharged permit mbeioto the person(s) w effective 45 days from the publish date of this notice. NPDES Permit Number NC00264d2, Town of Robersonville WWTP, P.O. Box 487, Robersonville, NC 27871 has applied for a permit renewal for a facility located in Martin County discharging treated municipal wastewater into Flat Swamp in theTar-Pamlico River Basin. Currently BOD5, ammonia, and mercury are water quality limited. This discharge may affect future allocations in this portion of the receiving stream. Written comments regarding the proposed permit will be accepted until 30 days after 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 3;gnificant degree of public interest. Copies of the draft permit and other supporting information on file used 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 catl*Ms. Christine Jackson at (919) 733-5083, extension 538. Please include the NPDES permit number (above) in any communication. Interested persons may also visit the Division of Water Quality at 512 N. Salisbury Street, Raleigh, NC 27604-1448 between the hours of 8:00 AM and 5:00 PM to review information on file. oct 17 1t • AFFIDAVIT OF PUBLICATION NORTH CAROLINA. Wake County. ) Ss. PUBLIC NOTICE STATE OF NORTH CAROLINA ENVIRONMENTALM ES COMMISSION/MENT COMMISSIO 1617 MAIL SERVICE CENTER RALEIGH, NC 27699-1617 NOTIFICATION OF INTENT TO ISSUE A NPDES WASTEWATER PERMIT • On the basis of thorough staff 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 accept- ed until 30 days after the publish date of this notice. All comments received prior to that date are considered in the final determina- tions 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 used to determine conditions present in the draft permit are available upon request and payment of the costs of reproduction. Mall 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 file. NPDES Permit Number NC0026042. Town of Robersonville WWTP, P.O. Box.487, Robersonvllle, NC 27871 has applied for a treated municipalcwastewateerrpintoaFlat discharg- ingSwampn e Tar -Pamlico River Basin. Currently BODS, ammonia, and mercury are water water quality limited. This discharge may affect future allocations in this portion of the receiving stream. N&0: October 15, 2000 I- I Before the undersigned, a Notary Public of Johnston County North Carolina, duly commissioned and authorized to administer oaths, affirmations, etc., personally appeared Debra Peebles, who, being duly sworn or affirmed, according to law, Both depose and say that she is Billing Manager -Legal Advertising of THE NEWS AND OBSERVER PUBLISHING COMPANY a corporation organized and doing business under the Laws of the State of North Carolina, and publishing a newspaper known as THE NEWS AND OBSERVER, in the City of Raleigh, County and State aforesaid, the said newspaper in which such notice, paper, document, or legal advertisement was published was, at the time of each and every such publication, a newspaper meeting all of the requirements and qualifications of Section 1-597 of the General Statutes of North Carolina and was a qualified newspaper within the meaning of Section 1-597 of the General Statutes of North Carolina, and that as such she makes this affidavit; that she is familiar with the books, files and business of said corporation and by reference to the files of said publication the attached advertisement for NC DEPT OF DEHNR was inserted in the aforesaid newspaper on dates as follows: 10/15/00 Account Number: 73370152 The above is correctly copied from the books and files of the aforesaid Corporation and publication. (ARy'• C' SEAL 1 • pUBx-\G .• c' 0 9 • v Billing Manager -Legal Advertising Sworn or affirmed to, and subscribed before me, this 17 day of OCTOBER , 2000 AD In Testimony Whereof, I have hereunto set my hand and affixed my official seal, the day and year aforesaid. A, iorkto Notary Public AIL) VPI" My commission expires 2nd of July 2005. DENR/DWQ FACT SHEET FOR NPDES PERMIT DEVELOPMENT 1 NPDES No. NC0026042, Robersonville WWTP 1 Facility Information XnAk2 ti !By Applicant/Facility Name: Town of Robersonville/ Robersonville WWTP Applicant Address: P.O. Box 487, Robersonville, NC 27871 Facility Address: NCSR 1158 Permitted Flow 1.8 MGD Type of Waste: % Ind., % Domestic Facility/Permit Status: Renewal County: Martin Miscellaneous Receiving Stream: Flat Swamp Regional Office: WaRO Stream Classification: C Sw NSW SI: Quad D29SE Robersonvill V st 303(d) Listed?: No Permit Writer: S. Wilson Subbasin: 030306 Date: Septembe 22, 2000 Drainage Area (mi2): 18 _' i Summer 7Q10 (cfs) 0.27 Winter 7Q10 (cfs): 0.73 Average Flow (cfs): 18 1WC (%): 91% Primary SIC Code: 4952 SUMMARY Robersonville operates a 1.8 MGD wastewater treatment plant. In March 1999, Robersonville received an Authorization to Construct permit for modifications to the existing treatment plant. The modifications included the addition of a clarifier and anoxic/oxic zones for nutrient removal, as well as other additions. It is unknown to this unit if those modifications have been completed. Robersonville also planned to add a high strength waste pretreatment facility but the Town has indicated that the proposed pretreatment facility will likely not be built (an ATC was issued for this 7/99). A speculative limits letter was provided to the Town in March 1999 for a flow of 2.4 MGD. The Division notified the Town at that time that unless they became a member of the Tar Pam Nutrient Trading Association, they would have to pay a large amount in order to receive any additional permitted flow (to account for the increased nutrient loading). In December 1999 Robersonville requested membership in the Association. The Association has allowed Robersonville to join with an upfront payment. The Association stated that Robersonville's membership would be contingent on their concurrence with the Division's proposal for the revised nutrient cap. The Division has not yet submitted a proposed revised Association nutrient cap to the Association and it its likely that acceptance will not be made prior to permit issuance. Therefore, this draft permit takes into account both conditions. Per Planning Branch staff, comments were sent to Robersonville regarding the EA in March 1999 and no other information has been received from Robersonville and no FONSI has been issued for the expansion (therefore, this permit is a renewal only TOXICITY TESTING: Current Requirement:Chronic P/F ® 90% (also recommended with renewal) Robersonville has had some sporadic failures during the past 3 years. COMPLIANCE SUMMARY: BASED ON THE PREVIOUS 2 YEARS Robersonville appears to have been compliant with permitted limits (per computer printout), with the exception of September 1999 (hurricane related). Some sampling was not performed in October 1999 due to damaged equipment. Robersonville WWTP NPDES Renewal Page 1 • J INSTREAM MONITORING: Instream monitoring values indicate potential impact of the discharge on dissolved oxygen levels (downstream levels were below upstream levels). DO levels during the summer months were below 5 mg/1 (but this may be due to swamp -like conditions). The 1999 Tar Pamlico Basin plan recommended that no new dischargers be allowed in Flat Swamp due to limited assimilative capacity. This was taken into consideration when limits for the proposed expansion for 2.4 MGD were developed. It was deemed that in 1994 the basin reviewer assumed that assimilative capacity was limited due to the low DO values. However, current thinking regarding swamp conditions acknowledges that the degree of assimilative capacity into a swamp system may be difficult to assess. In addition, the expansion with the proposed limits would actual provide a decrease in loading from current conditions. Therefore, the Robersonville proposed expansion would be allowed (existing regional system) . PROPOSED CHANGES: Robersonville is required to monitor arsenic, cadmium, chromium, copper, fluoride, lead, mercury, nickel, zinc, iron, selenium, and oil/grease via the NPDES permit. Other parameters of concern are monitored due to the 503 rules. The facility has a modified pretreatment program and has implemented an STMP. Because of the proposed high strength waste coming into the plant, Robersonville will develop a LTMP with the expansion phase. Copper and zinc were determined to have a reasonable potential to exceed the action level water quality standards and will be required to be monitored 2/month (this requirement is also due to sporadic toxicity failures). Because iron is an action level parameter and fairly ubiquitous, only quarterly monitoring will be required (reported values were well above the action level allowable) . Other parameters were not found to have a reasonable potential to exceed the water quality standards. Additionally, with the expansion phase, many of these parameters will be monitored via the LTMP/ pretreatment program (elimination of the requirement from the permit does not mean that these parameters will never be monitored again) . A level of mercury above the detection level was reported, so a mercury limit has been imposed in the permit. Robersonville will be notified that if less than DL are reported for a year, the Town may request that the limit be removed. Reasonable Potential? Current Requirement Current Requirement Limit? Renewal Daily max. Weekly Avg. Acute daily max Chronic Standard wklyavg Arsenic Monitor DROP Cadmium Monitor DROP Chromium — - Monitor DROP Copper Monitor Monitor 2/Month Lead Monitor DROP Fluoride Limit 2 mg/I DROP Nickel Monitor DROP Mercury Monitor Limit 0.013 ug/1 Iron Monitor Monitor Quarterly Zinc Monitor Monitor 2/Month Selenium Monitor DROP Rohersonville WWTP NPDES Renewal Page 2 PROPOSED NUTRIENT LIMIT/MONITORING CHANGES: A Special condition has been inserted into the draft permit to provide for any complications which may arise with Robersonville's acceptance into the Association. Should Robersonville not be accepted into the Association - limits for TP and TN (1 mg/1 and 6 mg/1) will be imposed June 30, 2001. PROPOSED SCHEDULE FOR PERMIT ISSUANCE: Draft Permit to Public Notice: 10/18/00 Permit Scheduled to Issue: December, 2000 (est.) STATE CONTACT: If you have any questions on any of the above information or on the attached permit, please contact Susan Wilson at (919) 733-5038 ext. 510. REGIONAL OFFICE COMMENT: NAME: ,-- (f 7 S DATE: /d a/c,- Robersonville WWTP NPDES Renewal Page 3 SOC PRIORITY PROJECT: YES NO_X_ IF YES, SOC NO. To: Permits and Engineering Unit Water Quality Section Attn: Dave Goodrich Date: November 3, 1999 1 oV 1 0 UO DENR - WATER 01' "I . T cnilcrr r NPDES STAFF REPORT AND RECOMMENDATION Martin County Permit No. NC0026042 PART I — GENERAL INFORMATION 1. Facility and Address: Town of Robersonville Wastewater Treatment Plant Martin County P.O. Box 487 Robersonville, NC 27871 2. Date of Investigation: October 27, 1999 3. Report Prepared by: Kristin Jarman 4. Person(s) contacted and telephone number(s): Willie Andrews Operator in Responsible Charge (252) 795-4558 5. Directions to Site: From Hwy 11 North take Hwy 903 North to Robersonville. At the caution light turn left onto 3rd Street. Go about 3/4 of a mile to Rogerson Road and turn left. Approx. 1/4 of a mile turn left onto the first dirt road. Facility is straight ahead. 6. Discharge Point: 001-- Latitude: 35° 48' 40"N Longitude: 77° 15' 30"W Attach a USGS map extract and indicate treatment facility site and discharge point on map. USGS Quad. No. USGS Quad Name: Robersonville,West 7. Site size and expansion area consistent with application? X Yes No If No, explain: 8. Topography (relationship to flood plain included): flat; approx. 14 meters above sea level. 9. Location of nearest dwelling: Approx. 3/4 of a mile 10. Receiving stream or affected surface waters: Flat Swamp Creek a. Classification: C Sw NSW b. River Basin and Subbasin No.: 03-03-06 c. Describe receiving stream features and pertinent downstream uses: Flat Swamp Creek is a low -flow creek tributary to Tranters Creek which supports fishing, fish propagation and the other uses of a class C stream. PART II —DESCRIPTION OF DISCARGE AND TREATMENT WORKS 1. a. Volume of Wastewater to be permitted: 1.8 MGD Monthly Avg. b. What is the current permitted capacity of the Wastewater Treatment facility? 1.8 MGD Monthly Avg. c. Actual treatment capacity of the current facility (current design capacity)? 1.8 MGD d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in the previous two years: March 11, 1999 : An influent splitter box, a second grit removal chamber, anaerobic/anoxic basins consisting of four anaerobic zones and two anoxic zones, two internal recycle pump stations, modifications to the existing clarifier splitter box, a 50 foot diameter secondary clarifier, a new intermediate lift station, a second chorine contact chamber accommodating dechlorination, an additional RAS pump, two aerobic sludge digesters, a laboratory/administrative building and all necessary piping and appurtenances. July 22, 1999: An influent flow meter and sampler, grit removal chamber, 6.17 million gallon aeration basin, integrated 830 square foot clarifier, an effluent pump station, flow meter and sampler, an internal recycle pump station, a RAS pump station, a WAS chamber and an aerated sludge digester. e. Please provide a description of existing or substantially constructed wastewater treatment facilities: 4.5 MGD mechanical bar screen, a 4680 gpm raw wastewater pump station with 3 submersible pumps, 3 separate flow measurement devices, and an activated sludge system consisting of a distribution box, two (2) 1.35 mgal. oxidation ditches, aeration system, five (5) 86,360 gal secondary clarifiers, and a 1250 gpm return/waste sludge pump station. The filtration system consists of four (4) 180 sq. ft. prefabricated steel gravity filters, with uniform dual media, filter underdrain system, wash troughs, air wash, two (2) 1300 gpm backwash pumps, and four (4) 1050 gpm effluent pumps. Disinfection is achieved by a chlorine handling and feed system and a 32,120 gal chlorine contact chamber. The 25,500 gal post aeration facility operates fourteen (14) orbal disc type aerators. The aerobic sludge digestion system consists of an aerated sludge digester and holding tank for a combined volume of 541,500 gal. f. Please provide a description of proposed wastewater treatment facilities: An influent splitter box, a second grit removal chamber, anaerobic/anoxic basins consisting of four anaerobic zones and two anoxic zones, two internal recycle pump stations, modifications to the existing clarifier splitter box, a 50 foot diameter secondary clarifier, a new intermediate lift station, a second chorine contact chamber accommodating dechlorination, an additional RAS pump, two aerobic sludge digesters, a laboratory/administrative building and all necessary piping and appurtenances. An influent flow meter and sampler, grit removal chamber, 6.17 million gallon aeration basin, integrated 830 square foot clarifier, an effluent pump station, flow meter and sampler, an internal recycle pump station, a RAS pump station, a WAS chamber and an aerated sludge digester. g• Possible toxic impacts to surface waters: Chlorine Disinfection h. Pretreatment Program (POTWs only): Approved 2. Residuals handling and utilization/disposal scheme: a. If residuals are being land applied, please specify DWQ permit no. WQ0002897 Residuals Contractor:_Town of Robersonville Telephone No._: (252)-795-4558 b. Residuals stabilization: PSRP x PFRP Other c. Landfill: d. Other disposal/utilization scheme (Specify): e. Treatment plant classification (attach completed rating sheet): Grade IV 3. SIC Code: 4952, 2015 Wastewater Code of actual wastewater, not particular facilities. 001-- Primary_01_ Secondary _78 Main Treatment Unit Code: 05 6 3 PART III —OTHER PERTINTENT INFORMATION 1. Is this facility being constructed with Construction Grant Funds or are any public monies involved? (municipals only) yes 2. Special monitoring or limitations (including toxicity) requests: None 3. Additional effluent limits requested: None 4. Other: None PART IV —EVALUATION AND RECOMMENDATION The Washington Regional Office recommends that this permit be reissued. /% Signature eport Preparer Water Quality Regional Supervisor Date 543 Pretreatment Unit Staff (Region) Jcff Poupar1-(W,sR6) Te , LONG TERM MONITORING PLAN REQUEST FORM FACILITY: obers 0A v 1 le NPDESNO.: hCo6 a La EXPIRATION DATE: REGION: [A) I) is P&E REQUESTOR: SkN UJ t d\„ PRETREATMENT CONTACT: O,v f ( 1 e. j DATE OF REQUEST: 3)16 f q INDICATE THE STATUS OF PRETREATMENT PROGRAM: 1) THE FACILITY HAS NO SIU'S AND SHOULD NOT HAVE PRETREATMENT LANGUAGE. • 01/4.8k 1 2 i 2) THE FACILITY HAS U ` "' e"-'"'C A PREATREATMENT PROGRAM 3) ADDITIONAL CONDITIONS REGARDING THE PRETREATMENTI-PROGRAM ATTACHED. PERMITTED FLOW: Ctkrre"`T ii C'Re [ IA. - pf.rw(' % INDUSTRIAL Now i 43 ' r l G`D ac- &t44(`l 5 %DOMESTIC .ti A 0. 2).1 rvl 6 J� /- 0 , Will 67) LI r1 C--e 4 00 r IS O7),1- s S f Vl 4-13 +- 0.16-- Dana Folley () Joe Poaicc -(MRO) Pel7A) Vices heeN a I'l o01 Pro9j r� 5c ac ['cl4') So %as been ivv._Ple e 4,f7 s 1Y P P +BOG5 f3aD iTss) n t )+ 10 rhefcls P-ra`foC SD3 R °6 Ceif-k.pi24,u_ I kq-- Sk•4/e/UN -VvLiAtA^^eA4 tivvv‘k 6/4 levni3 attAIL -43 J1,110evi\Le-;, vyL toei,e\ (C) PrR,te-c t ic,� / 0 `)3 r,-e ROBERSONVILLE WWTP AND INDUSTRY SAMPLING SUMMARY DATA FORM Note: If a "< pr000cds a number. the number reported was blow detection, and the number appearing is 1/2 detection (ie, "< 2.5" means less than a detection of 5.0) SAMPLE LOCATION a POTW Effluent DATA SOURCE = Town Retards STMP STMP STMP STMP Sample Flow C12 Res. Date Aug-96 (mgd) (u8n) BOD (mg/I) TSS (mg/1) NH3-N (mgFl) Total P _ (mg/I) As • (ugl) Cd (ug/l) Cu (u )NI Cr (ug/1) Pb (u1�2S IlP� (u8/0)1 (u� Se (u�)00 Zn (u65 Fe I►io 1.096 151.00 0.99 3.50 039 0.27 < 2.50 < 0.50 7.00 < 50 �< b < i < 00 (153.00 (ug/i) Sep-96 1.774 100.00 1.70 6.30 033 0.98 < 2.50 < 0.50 38.00 < 2.50 < 2 1 < 0.1. 16.00 < 5.00 00, Oct-96 1338 131.00 2.60 11.20 0.51 245 < 2.50 < 0.50 67.00 < 2.50 < 2 ' < 0.1 . < 5.00 < 32.00 1452.00 Nov-96 Dee-96 1.192 260.00 1.90 8.60 042 2.06 < 4.00 < 0.50 70.00 < 2.50 < 2 ' < 0.1. < 5.00 < 5.00 5.00 35.00 273.00 Jan-97 1317 175.00 2.10 7.00 046 1.52 < 2.50 < 0.50 155.00 < 2.50 < 2.5. < 0.10 31.00 < 5.00 40.00 360.00 Feb-97 2.20 6.20 0.70 0.10 < 2.50 < 0.50 34.00 < 2.50 < 1• < 0.1' < 5.00 < 5.00 105.00 184.00 4 10 <5.0 1110.25 1 1371 76.00 1.80 5.56 0.52 0.41 < 2.50 < 0.50 12.00 < 2.50 < 2 ' < 0.1. < 5.00 < 59.00 167.00 Mar-97 1.226 214.00 2.70 6.2C 0A5 0.69 < 2.50 < 0.50 20.00 < 2.50 < 230 < 0.10 < 5.00 < 5.00 5.00 21.00 143.00 Apr-97 1.193 141.00 2.50 6.70 0.40 0.52 < 2.50 < 0.50 18.00 < 2.50 < 2.5. < 0.1' < 5.00 < 16.00 183.00 May-97 Jun-97 1.135 80.00 1.90 SA0 043 1.04 < 2.50 < 0.50 25.00 < 2.50 < 2 . < 0.1' < 5.00 < 5.00 33.00 422.00 Jul-97 1.110 221.00 2.80 4.90 0.41 0.86 < 2.50 < 0.50 20.00 < 250 < 2.5. < 0.1' 15.00 < 5.00 50.00 179.00 1.159 276.00 2,40 3.10 0.62 1.05 < 2.50 < 0.50 1050 < 2.50 < 2 ' < 0.1' < 5.00 < 7.50 21.00 98.00 Aug-97 1.068 104.00 1.90 3.40 031 0.88 < 2.50 < 0.50 11.00 < 2.50 < 2 b < 0.1. < 5.00 < 5.00 12.00 80.00 Sep•97 Oct-97 1.105 144.00 140 4.70 0.50 0.17 < 2.50 < 0.50 135.00 < 2.50 < 2 i < 0.1' < 5.00 < 5.00 5.00 23.00 8950 1.113 70.00 0.60 3.40 0.22 037 < 2.50 < 030 132.00 < 2.50 < 2.5. < 0.1 • 15.00 < 39.00 187.00 Nov-97 1.019 86.00 0.80 440 0.76 0.50 < 2.50 < 0.50 16.00 < 2.50 < 2.5. 52.00 < < 5.00 5.00 32.00 22.00 197.00 451.00 Dco-97 1.177 298.00 1.80 630 0.51 0.44 < 2.50 < 0.50� 41.00 < 2.56 < 0.1' 6... < 0.1' 19.00 9/16 98 9/23/98 9/30/98 Average Max Mln 1.212 1.774 1.019 157.94 298.00 70.00 - 1.89 2.80 0.60 5.71 11.20 3.10 0.47 0.76 0.22 0.84 245 0.10 < 2.59 . 4.00 2.50 < < < 0.50 ^ 0.50 0.50 48.32 155.00 105� < < < 2.50 2.50 2.5 2.71 6... 2.5 < < < 0.10 0.1' 0.1, 11.94 52.00 < 5.00, < < 5.00 5.15 750 5.00 28.00 37.24 105.00 120o 108.00 278.03 1452.00 RA An REMOVAL RATES: Influent Average Effluent Average a Plant Removal Rate= Removal Rate Source" C12 Res. (ug/I) , n/a (1) If more than 50% of pollutant data was below Sludge systems were used (from Pretreatment (2) CkCalcu1ated, DaDefanit RobersonvWo Headwork" Analysis Sampling Summary HOD (mg/1) 189.76 1.89 99.01% TSS (mgd) 159.06 5.71 96.41% C ,c detection 1evc1. de ;uidance Man NH3-N (mg/1) 16.28 047 97.13% Total P (mg/1) • ia/a 0.84 As (ug/I) 3.68 2.59 29.6% Cd Cu Cr (ug.1) (u8/I) I (u8/1) < 1.25 39.64 2.96 < 0 483 2.50 60.0% 86% 82.0% V DI ! D D (86.00%) val rates (media) for Activated (Default) ppendix 5-D) Pago 2 Pb (ug/i) 6.88 2.71 61.0% D II (ug/1) 0.13 0.10 60.0% V D NI (ug/1) 5.62 11.94 42.0% '1 D St (p/11) 536 5.15 50.0% V D Zn (ugl!) Fe (ug/i) 8548.75 278.03 96.75%l C 0-k (7b1 /(sc«i Prepared By: EMT 12/29/98 Memorandum To: Susan Wilson From: Valery Stephens Date: 08/21/00 Re: Robersonville (NC0026042) I did not enter RPA Data for Arsenic as all of the 57 recordings were <5 on the DMR's. Cadmium, all 57 recordings were <1 on the DMR's . Selenium, all 57 recordings were <10 on the DMR's. The self -monitoring summary report indicated that this facility FAILED the toxicity tests in November 1998, and FAILED/PASS in November 1997, and PASS/FAILED in August 1999. DAP C.t P2 se -Fox pzsu L 5 1 TOXICANT ANALYSIS Facility Name Robersonville Parameter= Fluoride ' Pa NPDES # NC0026042 Standard = 1.8 mg/I Qw (MGD) 1.8 Data 7Q10s (cfs) 0.27 n BDL=1/2DL,ictual RESULTS IWC (%) 91.18 1 0.63 0.63 Std Dev. 0.184572417 ,c'ving Stream Flat Swamp 2 0.82 0.82 Mean 0.846041667 Stream Class C Sw NSW _ 3 0.84 0.84 0.87 C.V. 0.21815996 4 0.87 FINAL RESULTS 5 0.65 0.65 Fluoride 6 0.84 0.84 Mult Facto 1.2 Max. Pred Cw 1.56 mg) 7 0.84 0.84 Max. Valu 1.3 mg4 Allowable Cw 2.0 mg' 8 0.74 0.74 Max. Pred 1.56 mg4 Max. Value 1.3 mg) 9 0.79 Allowable 1.97 mg4 10 0.64 _0.79 0.64 Max. Pred Cw 0 ug/I 11 0.71 0.71 Allowable Cw #VALUE! ug/I 12 0.62 0.62 Max. Value 0 13 0.79 0.79 14 0.76 0.76 Max. Pred Cw 0 ug/I 15 0.82 0.82 Allowable Cw #VALUE! ug/I 16 0.81 0.81 Max. Value 0 17 0.79 0.79 18 1.21 1.21 Max. Pred Cw 0 ug/I 19 1.08 1.08 Allowable Cw #VALUE! ug/I 20 1 1 0.95 _ Max. Value 0 21 0.95 22 0.86 0.86 Max. Pred Cw 0 ug/l 23 0.95 0.95 Allowable Cw #VALUE! ug/I 24 1.3 1.3 Max. Value 0 25 1.3 1.3 26 0.63 0.63 Max. Pred Cw 0 ug/I 27 0.74 0.74 Allowable Cw #VALUE! ug/I 28 0.41 0.41 Max. Value 0 29 0.94 0.94 0 30 0.74 0.74 Max. Pred Cw 0 ug/ 31 0.8 0.8 Allowable Cw 0.0 ug/ 32 0.33 0.33 Max. Value 0 33 0.96 0.96 0 _ 34 1 1 0.81 -- Max. Pred Cw 0 ug/, 35 0.81 -- Allowable Cw 0.0 ug/I 36 0.86 0.86 Max. Value 0 37 0.94 0.94 0 38 0.98 0.98 _ Max. Pred Cw 0 ug/I 39 0.95 0.95 Allowable Cw 0.0 ug/I 40 1.04 1.04 Max. Value 0 41 0.9 0_9 0 42 1.01 1.01 Max. Pred Cw 0 ug/I 43 0.86 0.86 Allowable Cw 0.0 ug/ 44 0.99 0.99 _ - Max. Value 0 45 0.85 0.85 -_�- -�- 0 46 0.73 _ 0.73 0.78 0.75 Max. Pred Cw 0 ug/I 47 0.78 Allowable Cw 0.0 ug/I 48 0.75 9/23/00 'PAGE 1 8/21/0 Facility Name Robersonville WWTP Parameter = Chromium NPDES # NC0026042 Standard = 50 pg/I Qw (MGD) 1.8 v 7Q10s (cfs) 0.27 ✓ n BDL=1/2DL Actual Data RESULTS /WC (%) 91.18 1 2.5 <5 Std Dev. 1.673404301 -c'ving Stream 2 2.5 <5 Mean 2.815789474 Stream Class 3 11 11 C.V. 0.594293116 4 2.5 <5 FINAL RESULTS 5 2.5 <5 Chromium 6 2.5 <5 Mult Factor = 1.7 Max. Pred Cw 20.4 ug/1 7 2.5 <5 Max. Value 12 pg/l Allowable Cw 54.8 ug/I 8 2.5 <5 Max. Pred Cw 20.4 pg/1 Max. Value 12 9 2.5 <5 Allowable Cw 54.84 pg/I v Iron 10 2.5 <5 Max. Pred Cw 16959.6 ug/I 11 2.5 <5 Allowable Cw 1096.8 ug/I 12 2.5 <5 Max. Value 4038 13 2.5 <5 Lead 14 2.5 <5 Max. Pred Cw 7.2 15 2.5 <5 Allowable Cw 27.4 ug/1 16 2.5 <5 Max. Value 6 17 2.5 <5 Nickel 18 2.5 <5 Max. Pred Cw 52.2 19 2.5 <5 Allowable Cw 96.5 20 2.5 <5 Max. Value 29 21 2.5 <5 Mercury 22 2.5 <5 Max. Pred Cw 0.36 u. /I 23 2.5 <5 Allowable Cw 0.0 ug/I 24 2.5 <5 Max. Value 0.3 25 2.5 <5 Cop • er 26 2.5 <5 Max. Pred Cw 520.8 u • /l 27 2.5 <5 Allowable Cw 5.5 ug/I 28 2.5 <5 Max. Value 168 29 2.5 <5 Zinc 30 2.5 <5 Max. Pred Cw 1632 I1 31 2.5 <5 Allowable Cw 54.8 ug/I 32 2.5 <5 Max. Value 510 33 2.5 <5 34 2.5 <5 35 2.5 <5 36 2.5 <5 37 2.5 <5 38 2.5 <5 39 2.5 <5 40 2.5 <5 41 2.5 <5 42 2.5 <5 43 2.5 <5 44 2.5 <5 45 2.5 <5 46 2.5 <5 47 2.5 <5 48 2.5 <5 49 2.5 <5 50 2.5 <5 51 2.5 <5 52 2.5 <5 53 2.5 <5 54 2.5 <5 55 2.5 <5 56 12 12 57 2.5 <5 8/21/00 8/2 Parameter = Iron (A.1-.) Parameter = Lead Standard = 1000 pg/I Standard = 25 pg/l n BDL=1/2DL Actual Data RESULTS n BDL=1/2DL Actual Data RESULTS 1 46 92 Std Dev. 534.15 1 2.5 <5 Std Dev. 0.463586 2 46 92 Mean 156.939 2 2.5 <5 Mean 2.561404 3 53.5 107 C.V. 3.40356 3 2.5 <5 C.V. 0.180989 4 44.5 89 4 2.5 <5 5 44.5 89 5 2.5 <5 6 30 60 Mult Factor = 4.2 ✓ 6 2.5 <5 Mult Factor: 1.2 ✓ 7 74 148 Max. Value 4038 Ng/I 7 2.5 <5 Max. Value 6 ig/I 8 156.5 313 Max. Pred Cw 16959.6 pg/I 8 2.5 <5 Max. Pred Cr 7.2 pg/I pg/I 9 227.5 455 Allowable Cw 1096.77 pg/I '" 9 2.5 <5 Allowable Cv 27.42 10 37 74 10 2.5 <5 11 35 70 Q ; Ac.v 11 2.5 <5 pQ© P 12 45.5 91 froneifcR c 12 2.5 <5 13 34 68 13 2.5 <5 14 44.5 89 14 2.5 <5 15 56 112 15 2.5 <5 16 61.5 123 16 2.5 <5 17 4038 8076 Oct.99 17 2.5 <5 18 38.5 77 _ 18 2.5 <5 19 88 176 19 2.5 <5 20 57 114 20 2.5 <5 21 118 236 21 2.5 <5 22 84.5 169 22 2.5 <5 23 37 74 23 2.5 <5 24 84.5 169 24 2.5 <5 25 141.5 283 25 6 6 26 75 150 26 2.5 <5 27 69.5 139 27 2.5 <5 28 101.5 203 28 2.5 <5 29 33 66 29 2.5 <5 30 41 82 30 2.5 <5 31 51.5 103 31 2.5 <5 32 32.5 65 32 2.5 <5 33 241.5 483 33 2.5 <5 34 81 162 34 2.5 <5 35 86 172 35 2.5 <5 36 98 196 36 2.5 <5 1/00 37 101 202 37 2.5 <5 38 85 170 38 2.5 <5 39 264 528 39 2.5 <5 40 87 174 40 2.5 <5 41 93 186 41 2.5 <5 42 53 106 42 2.5 <5 43 83 166 43 2.5 <5 44 54 108 44 2.5 <5 45 54 108 45 2.5 <5 46 138 276 46 2.5 <5 47 79.5 159 47 2.5 <5 48 20 40 48 2.5 <5 49 24.5 49 49 2.5 <5 50 112 224 50 2.5 <5 51 76 152 51 2.5 <5 52 31.5 63 52 2.5 <5 53 35 70 53 2.5 <5 54 790.5 1581 Feb.98 54 2.5 <5 55 37.5 75 55 2.5 <5 56 38.5 77 56 2.5 <5 57 55 110 57 2.5 <5 8/21/00 8/21/ 1 l Parameter = Nickel Parameter = Mercury Standard = 88 pg/I Standard = 0.012 pg/I n BDL=1/2DL Actual Data RESULTS n BDL=1/2DL Actual Data RESULTS 1 5 <10 Std Dev. 5.1919 1 0.1 <.2 Std Dev. 0.0265 2 5 <10 Mean 7.386 2 0.1 <.2 Mean 0.1035 3 5 <10 C.V. 0.7029 3 0.1 <.2 C.V. 0.2559 4 5 <10 4 0.1 <.2 5 5 <10 5 0.1 <.2 6 5 <10 Muft Factor = 1.8 ✓ 6 0.1 <.2 Mult Factor = 1.2 ri 7 13 13 Max. Value 29.pg/I 52.2 7 0.1 <.2 Max. Value 0.3 pg/I pg/I 8 20 20 Max. Pred Cw pg/I 8 0.1 <.2 Max. Pred Cw 0.36 9 5 <10 Allowable Cw 96.5241g/1 9 0.1 <.2 Allowable Cw 0.01 pg/I 10 5 <10 10 0.1 <.2 11 5 <10 D20P 11 0.1 <.2 L lrn ► T 12 5 <10 12 0.1 <.2 - 13 5 <10 13 0.1 <.2 14 5 <10 14 0.1 <.2 15 5 <10 15 0.1 <.2 16 11 11 16 0.1 <.2 17 5 <10 17 0.3 0.3 18 11 11 18 0.1 <. 19 5 <10 19 0.1 <.2 20 5 <10 20 0.1 <.2 21 5 <10 21 0.1 <.2 22 5 <10 22 0.1 <.2 23 5 <10 23 0.1 <.2 24 5 <10 24 0.1 <.2 25 5 <10 25 0.1 <.2 26 5 <10 26 0.1 <.2 27 5 <10 27 0.1 <.2 28 5 <10 28 0.1 <.2 29 5 <10 29 0.1 <.2 30 5 <10 30 0.1 <.2 31 5 <10 31 0.1 <.2 32 5 <10 32 0.1 <.2 33 5 <10 33 0.1 <.2 34 29 29 34 0.1 <.2 35 5 <10 35 0.1 <.2 36 10 10 36 0.1 <.2 )0 37 24 24 37 0.1 <.2 38 5 <10 38 0.1 <.2 39 18 18 39 0.1 <.2 40 14 14 40 0.1 <.2 41 11 11 41 0.1 <.2 42 5 <10 42 0.1 <.2 43 5 <10 43 0.1 <.2 44 10 10 44 0.1 <.2 45 5 <10 45 0.1 <.2 46 15 15 46 0.1 <.2 47 5 <10 47 0.1 <.2 48 5 <10 48 0.1 <.2 49 5 <10 49 0.1 <.2 50 15 15 50 0.1 <.2 51 5 <10 51 0.1 <.2 52 5 <10 52 0.1 <.2 53 5 <10 53 0.1 <.2 54 5 <10 54 0.1 <.2 55 5 <10 _ 55 0.1 <.2 56 5 <10 56 0.1 <.2 57 5 <10 57 0.1 <.2 8/21/00 8/21/0 i Parameter = Standard =111111WEIMMIIII Co. • er mimi- ritiga Parameter = Zinc Standard = 50 pg/I n BDL=1/2DL Actual Data RESULTS n BDL=1/2DL Actual Data RESULTS 1 12 12 Std Dev. 34.091 1 21 21 Std Dev. 66.733 2 5 <10 Mean 18.14 2 20 20 Mean 33.474 3 13 13 C.V. 1.8793 3 20 20 C.V. 1.9936 4 16 16 4 15 15 5 12 12 5 26 26 6 15 15 Mult Factor = 3.1 ✓ 6 25 25 Mult Factor = 3.2 �✓ 7 5 <10 Max. Value 168 g/l 7 26 26 Max. Value 510 Ng/ 8 5 <10 Max. Pred Cw 520.8 g/1 8 25 25 Max. Pred Cw 1632 Ng/ Ng/ 9 5 <10 Allowable Cw -r..: pg/I 9 20 20 Allowable Cw 54.84 10 5 <10 10 20 20 11 13 13 11 22 22 gon) 1 To G2-- 12 5 <1011111111111111MEMI <10 IMIIIMOINIM 12 16 16 24oNTT ,l 13 5 13 20 20 14 5 <10 14 17 17 15 5 <10 15 25 <50 16 5 <10 16 20 20 17 5 <10 17 5 <10 18 5 <10 18 20 20 19 5 <10 19 45 45 20 167 167 20 41 41 21 168 168 21 40 40 22 5 <10 22 28 28 23 11 11 23 510 510 May-99 24 5 <10 24 87 87 25 5 <10 25 17 17 26 10 10 26 14 14 27 12 12 27 23 23 28 11 11 28 15 15 29 5 <10 29 20I 20 30 5 <10 30 12 12 31 5 <10 31 35 35 32 14 14 32 14 14 33 5 <10 33 13 13 34 23 23 34 17 17 35 15 15 35 14 14 36 5 <10 36 48 48 37 5 <10 37 15 15 38 11 11 38 15 15 39 5 <10 39 14 14 40 5 <10 40 21 21 41 11 11 41 18 18 42 13 13 42 16 16 43 19 19 43 23 23 44 5 <10 44 18 18 45 14 14 45 40 40 46 5 <10 46 12 12 47 10 10 47 24 24 48 5 <10 48 18 18 49 134 134 Apr-98 49 35 35 50 17 17 50 16 16 51 11 11 51 23 23 52 17 17 52 45 45 53 5 <10 53 5 <10 54 26 26 54 120 120 55 18 18 55 19 19 56 56 56 56 34 34 57 25 25 57 21 21 8/21/00 8/21/0 Facility Name Robersonville WWTP Parameter = Chromium NPDES # NC0026042 Standard = 50 pg/l Qw (MGD) 2.4 7010s (cfs) 0.27 n BDL=1/2DL Actual Data RESULTS IWC (%) 93.23 1 2.5 <5 Std Dev. 1.673404301 ec'ving Stream 2 2.5 <5 Mean 2.815789474 Stream Class 3 11 11 C.V. 0.594293116 4 2.5 <5 FINAL RESULTS 5 2.5 <5 Chromium 6 2.5 <5 Mult Factor= 1.7 Max. Pred Cw 20.4 ug/I 7 2.5 <5 Max. Value 12 pg/I Allowable Cw 53.6 ug/I 8 2.5 <5 Max. Pred Cw 20.4 pg/I Max. Value 12 9 2.5 <5 Allowable Cw 53.63 pg/i Iron 10 2.5 <5 Max. Pred Cw 16959.6 ug/I 11 2.5 <5 Allowable Cw 1072.6 ug/i 12 2.5 <5 Max. Value 4038 13 2.5 <5 Lead 14 2.5 <5 Max. Pred Cw 7.2 ug/I 15 2.5 <5 Allowable Cw 26.8 ug/I 16 2.5 <5 Max. Value 6 17 2.5 <5 Nickel 18 2.5 <5 Max. Pred Cw 52.2 ug/I 19 2.5 <5 Allowable Cw 94.4 ug/I 20 2.5 <5 Max. Value 29 21 2.5 <5 Mercury 22 2.5 <5 Max. Pred Cw 0.36 ug/I 23 2.5 <5 Allowable Cw 0.0 ug/I 24 2.5 <5 Max. Value 0.3 25 2.5 <5 Copper 26 2.5 <5 Max. Pred Cw 520.8 ug/I 27 2.5 <5 Allowable Cw 5.4 ug/I 28 2.5 <5 Max. Value 168 29 2.5 <5 Zinc 30 2.5 <5 Max. Pred Cw 1632 ug/I 31 2.5 <5 Allowable Cw 53.6 ug/I 32 2.5 <5 Max. Value 510 33 2.5 <5 34 2.5 <5 35 2.5 <5 36 2.5 <5 37 2.5 <5 - 38 2.5 <5 39 2.5 <5 40 2.5 <5 41 2.5 <5 42 2.5 <5 43 2.5 <5 44 2.5 <5 45 2.5 <5 46 2.5 <5 47 2.5 <5 48 2.5 <5 49 2.5 <5 50 2.5 <5 51 2.5 <5 52 2.5 <5 53 2.5 <5 54 2.5 <5 55 2.5 <5 56 12 12 57 2.5 <5 8/21/00 8/2 Parameter = Iron Parameter = Lead Standard = 1000 pg/I Standard = 25 pg/l n BDL=1/2DL Actual Data RESULTS n BDL=1/2DL Actual Data RESULTS 1 4 • 92 Std Dev. 534.15 1 2.5 <5 Std Dev. 0.463586 2 46 92 Mean 156.939 2 2.5 <5 Mean 2.561404 3 53.5 107 C.V. 3.40356 3 2.5 <5 C.V. 0.180989 4 44.5 89 4 2.5 <5 5 44.5 89 5 2.5 <5 6 30 60 Mult Factor = 4.2 6 2.5 <5 Mult Factor = 1.2 7 74 148 Max. Value 4038 pg/1 7 2.5 <5 Max. Value 6 pg/I 8 156.5 313 Max. Pred Cw 16959.6 pg/1 8 2.5 <5 Max. Pred C 7.2 Ng/1 pg/I 9 227.5 455 Allowable Cw 1072.58 pg/I 9 2.5 <5 Allowable Cv 26.81 10 37 74 10 2.5 <5 11 35 70 11 2.5 <5 12 45.5 91 12 2.5 <5 13 34 68 13 2.5 <5 14 44.5 89 14 2.5 <5 15 56 112 15 2.5 <5 16 61.5 123 16 2.5 <5 17 4038 8076 Oct.99 17 2.5 <5 18 38.5 77 18 2.5 <5 19 88 176 19 2.5 <5 20 57 114 20 2.5 <5 21 118 236 21 2.5 <5 22 84.5 169 22 2.5 <5 23 37 74 23 2.5 <5 24 84.5 169 24 2.5 <5 25 141.5 283 25 6 6 26 75 150 26 2.5 <5 27 69.5 139 27 2.5 <5 28 101.5 203 28 2.5 <5 29 33 66 29 2.5 <5 30 41 82 30 2.5 <5 31 51.5 103 31 2.5 <5 32 32.5 65 32 2.5 <5 33 241.5 483 33 2.5 <5 34 81 162 34 2.5 <5 35 86 172 35 2.5 <5 36 98 196 36 2.5 <5 1/00 37 101 202 37 2.5 <5 38 85 170 38 2.5 <5 39 264 528 39 2.5 <5 40 87 174 40 2.5 <5 41 93 186 41 2.5 <5 42 53 106 42 2.5 <5 43 83 166 43 2.5 <5 44 54 108 44 2.5 <5 45 54 108 45 2.5 <5 46 138 276 46 2.5 <5 47 79.5 159 47 2.5 <5 48 20 40 48 2.5 <5 49 24.5 49 49 2.5 <5 50 112 224 50 2.5 <5 51 76 152 51 2.5 <5 52 31.5 63 52 2.5 <5 53 35 70 53 2.5 <5 54 790.5 1581 Feb.98 54 2.5 <5 55 37.5 75 55 2.5 <5 56 38.5 77 56 2.5 <5 57 55 110 57 2.5 <5 8/21/00 8/21/ 1 Parameter = Nickel Parameter = Mercury Standard = 88 • /I Standard = 0.012q/I n BDL=1/2DL Actual Data RESULTS n BDL=1/2DL Actual Data RESULTS 1 5 <10 Std Dev. 5.1919 1 0.1 <.2 Std Dev. 0.0265 2 5 <10 Mean 7.386 2 0.1 <.2 Mean 0.1035 3 5 <10 C.V. 0.7029 3 0.1 <.2 C.V. 0.2559 4 5 <10 - 4 0.1 <.2 5 5 <10 5 0.1 <.2 6 5 <10 Mult Factor = 1.8 6 0.1 <.2 Mult Factor = 1.2 7 13 13 Max. Value 29 p • /I 7 0.1 <.2 Max. Value 0.3 pg/I pg/I pg/I 8 20 20 Max. Pred Cw 52.2 p./I 8 0.1 <.2 Max. Pred Cw 0.36 9 5 <10 Allowable Cw 94.39 • / 1 9 0.1 <.2 Allowable Cw 0.01 10 5 <10 10 0.1 <.2 11 5 <10 11 0.1 <.2 12 5 <10 12 0.1 <.2 13 5 <10 13 0.1 <.2 14 5 <10 14 0.1 <.2 15 5 <10 15 0.1 <2 16 11 11 16 0.1 <2 17 5 <10 17 0.3 0.3 18 11 11 18 0.1 <.2 19 5 <10 19 0.1 <.2 20 5 <10 20 0.1 <.2 21 5 <10 21 0.1 <2 22 5 <10 22 0.1 <.2 23 5 <10 23 0.1 <.2 24 5 <10 24 0.1 <.2 25 5 <10 25 0.1 <.2 26 5 <10 26 0.1 <.2 27 5 <10 27 0.1 <.2 28 5 <10 28 0.1 <.2 29 5 <10 _ 29 0.1 <2 30 5 <10 30 0.1 <.2 31 5 <10 31 0.1 <.2 32 5 <10 32 0.1 <.2 33 5 <10 33 0.1 <,2 34 29 29 34 0.1 <.2 35 5 <10 35 0.1 <.2 36 10 10 36 0.1 <.2 1 37 24 24 37 0.1 <.2 38 5 <10 38 0.1 <.2 39 18 18 39 0.1 <.2 40 14 14 40 0.1 <.2 41 11 11 41 0.1 <.2 42 5 <10 42 0.1 <.2 43 5 <10 43 0.1 <.2 44 10 10 44 0.1 <.2 45 5 <10 45 0.1 <.2 46 15 15 46 0.1 <.2 47 5 <10 47 0.1 <.2 48 5 <10 48 0.1 <.2 49 5 <10 49 0.1 <.2 50 15 15 50 0.1 <.2 51 5 <10 51 0.1 <.2 52 5 <10 52 0.1 <.2 53 5 <10 53 0.1 <.2 54 5 <10 54 0.1 <.2 55 5 . <10 55 0.1 <.2 56 5 <10 56 0.1 <.2 57 5 <10 57 0.1 <.2 8/21/00 8/21/0 Parameter = Co • • er ___ Parameter = Zinc Standard = 5 •11 Standard = 50 pg/I n BDL=1/2DL Actual Data RESULTS n BDL=1/2DL Actual Data RESULTS 1 12 12 Std Dev. 34.091 1 21 21 Std Dev. 66.733 2 5 <10 Mean 18.14 2 20 20 Mean 33.474 3 13 13 C.V. 1.8793 3 20 20 C.V. 1.9936 4 16 16 4 15 15 5 12 12 5 26 26 6 15 15 Mult Factor = 3.1 6 25 25 Mult Factor = 3.2 7 5 <10 Max. Value 168 pg/1 7 26 26 Max. Value 510 pg/ Ng/ 8 5 <10 Max. Pred Cw 520.8 pg/I 8 25 25 Max. Pred Cw 1632 9 5 <10 Allowable Cw 5.36 N • /i _ 9 20 20 Allowable Cw 53.63 pg/ 10 5 <10 10 20 20 11 13 13 11 22 22 12 5 <10 12 16 16 13 5 <10 13 20 20 14 5 <10 14 17 17 15 5 <10 15 25 <50 16 5 <10 16 20 20 17 5 <10 17 5 <10 18 5 <10 18 20 20 19 5 <10 19 45 45 20 167 167 20 41 41 21 168 168 21 40 40 22 5 <10 22 28 28 23 11 11 23 510 510 May-99 24 5 <10 24 87 87 25 5 <10 25 17 17 26 10 10 26 14 14 27 12 12 27 23 23 28 11 11 28 15 15 29 5 <10 29 20 20 30 5 <10 30 12 12 31 5 <10 31 35 35 32 14 14 32 14 14 33 5 <10 33 13 13 34 23 23 34 17 17 35 15 15 35 14 14 36 5 <10 36 48 48 37 5 <10 37 15 15 38 11 11 38 15 15 39 5 <10 39 14 14 40 5 <10 40 21 21 41 11 11 41 18 18 42 13 13 42 16 16 43 19 19 43 23 23 44 5 <10 44 18 18 45 14 14 _ 45 40 40 46 5 <10 46 12 12 47 10 10 47 24 24 48 5 <10 48 18 18 49 134 134 Apr-98 49 35 35 50 17 17 50 16 16 51 11 11 51 23 23 52 17 17 52 45 45 53 5 <10 53 5 <10 54 26 26 54 120 120 55 18 18 55 19 19 56 56 56 56 34 34 57 25 25 57 21 21 8/21/00 C 0 D ZbO Z- 1o# lvt it u�, rr S i C $vi 1\1Sk i d343D;=7 ‘i�-y, M4J- NPs 6416e' S c(€- AileQso v16 51,4 7 7r2/? 12- ivo- op 39 ai /24145. --411.f.a IZ itCS i E. ("e,SoGrA r-toN vd P �3,2-74.3G Arip Q�2 wf-,J r 6kP►a-14 s c o ry T-6 Z.�► r� 5T-froP .� �-r� , u --rz ` 3 2 — v )1i-E, 40 !a GT tM P /=fir' JS r 0 /U Pr2T/V-e, Fog- %i1 c.)t,ry Fort— ; 1f/ �A-✓JJ - APPit Gr7 SLur)9 l-N j uc- t�E w 15-.PL,c 4-c�r 1, 3 t"/civ/i- Jug c`r�� I2—►� / J �r L f/l/ o!)r4LAT(o F2 °1-5. P tiT Cka4 l; UM/ 5 >i cy 116 - 6 z,ue z /M&Trm / Cir; I.EC J � �-r^- T Pb j // / N� ) ,6;1/..e y�9 0.61;,c, 0.82- l' n.'04, o 7 U, 6.> p.84, 0,8 �00 6,?9 7/00 0.7, / d.(,,f, o.1 , 0,6z, 20,2 0,79 •76 0.52 0.8( 0.7? tin, 1,o2, I d .95- LI/e .S6, 0.95l 1.3) 1.3 10/99 ,63, 0.71; o.41, 0.9#, t/ . 74' • of , 33, ,9(0, 1.0, , S1 .86 ,4 ,93, ,45 j,o'f 6 Al •9 ' i(5 ,oi, , 86, •99. • SS ��� , 73 , 79, 7s Aifrdtaew c_ce N©F fAif r c AWN WA4s !'d(Ai TLC �� �Tx � �/ Cr/ ;� _ �� cc— S/i/r5 CoP�1 D904- NPDES Permit Application - Standard Form A Town of Robersonville, North Carolina NPDES Permit No. NC0026042 Response to Section 1, Part 6: Facility Description Present Operating Status The Robersonville WWTP currently operates a 4.50 mgd mechanical bar screen, a 4680 gpm raw wastewater pump station consisting of three (3) submersible pumps, three (3) separate flow measurement devices, and an activated sludge system consisting of a distribution box, two (2) 1.35 mgal. oxidation ditches, aeration system, five (5) 86,360 gal. secondary clarifiers, and a 1250 gpm return/waste sludge pump station. The filtration system consists of four (4) 180 sq. ft. prefabricated steel gravity filters, with uniform dual media, filter underdrain system, wash troughs, air wash, two (2) 1300 gpm backwash pumps, and four (4) 1050 gpm effluent pumps. Disinfection is achieved by a chlorine handling and feed system and a 32,120 gal. chlorine contact chamber. The 25,500 gal. post aeration facility operates fourteen (14) orbal disc type aerators. The aerobic sludge digestion system consists of an aerated sludge digester and holding tank for a combined volume of 541,500 gal. Thickened sludge is disposed of by land application. Potential Facility Changes Construction is currently taking place to upgrade the wastewater treatment plant. This upgrade will consist of new anaerobic/anoxic basins consisting of four (4) 8600 cu.ft. anaerobic zones and two (2) 18,600 cu.ft. anoxic zones, two (2) new internal recycle pump stations, modifications to the existing clarifier splitter box, new 29,500 cu.ft. final clarifier, modifications to the existing tertiary sand filters, new intermediate lift pump station, and a new 2050 cu.ft. chlorine contact chamber. Construction is soon to begin on a high strength wastewater receiving facility. This facility will consist of a new 330 cu.ft. grit chamber, new 640,000 cu.ft. aeration basin, new 7000 cu.ft. clarifier, new internal recycle pump station, new effluent pump station, new waste activated sludge chamber, new 3,000,000 gal. aerobic sludge digester, and new decant pump station. Schematics of Wastewater Flow Schematics of wastewater flow through both the upgraded wastewater treatment plant and new high strength wastewater receiving facility are attached. Location Map An 8.5" x 11" USGS Topographic Map is attached showing the locations of the wastewater treatment facilities and outfall. Sludge Management Plan The Sludge Management Plan is attached following the Location Map. Page 1 of 5 Schematic Diagram Proposed Wastewater Treatment System Improvements Robersonville-Everetts-Parmele Regional Wastewater Treatment Plant C Existing Influent Screening & Pump Station Proposed Recycle Pump Station Existing Oxidation Ditches RAS/WAS Pumping Splitter Box Proposed Anaerobic & Anoxic BiuReactors Existing Filter Existing Filter Existing Filter Existing Clarifier Existing Filter Existing Clarifier Existing Clarifier 1r Existing Clarifier - Existing Biosolids Stabilization Holdine Existing Grit Removal Existing Chlorination/ Dechlorination .�IIi1,1 i Prt posed Chlorination/ Dechiorination Page 2 of 5 r INTERNAL RECYCLE LINE INTERNAL RECYCLE PUMP STATION SCUM LINE EFFLUENT P.S. EFFLUENT TO ROBERSONVILLE WWTP WAS CHAMBER WAS/ SCUM LINE WASTE SLUDGE FROM MAIN WWTP CLARIFIER iiii;ii"Eaaia, RETURN ACTIVATED SLUDGE P.S. AERATION BASIN DECANT LINE DIGESTED SLUDGE TO LAND APPLICATION SITE AEROBIC SLUDGE DIGESTER DECANT PUMP STATION SLUDGE LOADING PUMP STATION BLOWER BLDG INFLUENT LINE GRIT CHAMBER INFLUENT METER RAS LINE ROBERSONVILLE PRETREATMENT SYSTEM SCHEMATIC DIAGRAM Page 3 of 5 Sludge Management Plan Town of Robersonville, North Carolina NPDES Permit No. NC0026042 The Town digests and holds its sludge on -site in old aeration basins that were built as part of an expansion in the 1970s. Digested sludge is land applied as a Class B sludge. Sludge application is performed by the Town with a terrigator-type truck. A new 3,000,000 gallon aerobic sludge digester/holding tank will be built by the Town. The application site is owned by the Town and is located adjacent to the wastewater treatment plant. Traditionally this has been a successful operation and the Town plans to continue with this practice. Page 5 of 5 Re: Robersonville... Subject: Re: Robersonville... Date: Wed, 10 Feb 1999 14:32:16 -0500 From: "Ruth Swanek"<ruth_swanek@h2o.enr.state.nc.us> Internal To: Mark McIntire <mark mcintire@h2o.enr.state.nc.us> Mark - Robersonville discharges into a swamp water, and knowing what I do now, the model was probably inappropriately applied. I would agree with giving them limits of 5/1. The bigger concern for R'ville is nutrient limits. They do not belong to the Tar -Pam Basin Association, and they will have to meet monthly average TP of 1 mg/1 and monthly average TN of 6 mg/1. In addition, they will have to pay for NPS controls. The formula to calculate the load is outlined in 2B .0229. Give me a buzz if questions. Mark McIntire wrote: > Ruth, > I'm sure you're aware of the fact that we have an EA or a 201 in house > for review right now for the Town of Robersonville. They are looking at > going from 1.8 MGD to 2.4 MGD. I had a couple of questions for you > about it. They discharge into Flat Swamp in the Tar -Pamlico River > Basin. Because of assimilative capacity issues, the basin plan > recommends no new or expanded discharges. I wanted to know how strong > this recommendation is? > They will also be receiving wastewater from the former Eagle Snacks > facility. If Robersonville expands, can they get the assimilative > capacity currently held by the Eagle Snacks facility? If so, it looks > like we could realize a 40 lb/day overall reduction in permitted load if > we gave them limits of 5 mg/L BOD and 1 mg/L NH3 at 2.4 MGD. Incidently > the facility will have no problem meeting a 1 mg/L NH3 limit. > With respect to nutrients, the facility is already averaging about 0.6 > mg/L total phosphorus and currently has an ATC in house for TN removal. > I found a memo from Carla, through you, to Michelle Suverkrubbe dated > 8116/96 speaking of this issue but I wanted to touch base with you to > get your thoughts. Just let me know what you think. > Thanks, > Mark > -- > MAILTO:mark_mcintire@h2o.enr. state.nc.us > N.C. DENR - Division of Water Quality > NPDES Unit > Phone: (919) 733-5083, ext. 553 > Fax: (919) 733-0719 Mailto:Ruth Swanek@h2o.enr.state.nc.us 1 of 2 2/12/99 7:OO AM 4 7O(tTfl O/' Gfi)OIJE'L1.Ol2ULLLE P.O. BOX 487 ROBERSONVILLE. N. C. 27871 PHONE 795-3511 December 20, 1999 Mr. Malcolm Green GVC General Manager PO Box 1847 Greenville, NC 27835-1847 Re: Tar Pamlico River Basin Association Dear Mr. Green: As per telephone conversations with Ron Elks with Greenville Utilities Commission and Paul Blount with the City of Rocky Mount, the Town of Robersonville is requesting membership in the Tar Pamlico River Basin Association. Minutes of the Town of Robersonville are enclosed to reflect our request. The Town does realize that our membership in the association depends on resolving the total nutrient cap limits issues with the state and_ payment of $73,274.36 for past pro rata expenses. Also, be advised that following our expansion, our permit flow will increase to 2.4 mgd. If other information is needed, please advise. Thank you, ‘d(j4 /John H. Pritchard, Jr. Town Manager cc: Ford Chambliss, The Wooten Co. Ron Elks, GUC Paul Blount, City of Rocky Mount Rich Gannon, State of NC Book 10 Page 218 The Robersonville Governing Board held its regular Board Meeting on December 14, 1999 in the Paul D. Roberson Room at 7:30 PM. Councilmen present were: Edward Casper, Noah Daniels, David Jenkins, Eugene B. Roberson, Jr., and Councilwoman Ivana Ward. Also present were: Mayor Frank A. Measamer; Town Manager, John H. Pritchard, Jr.; and Town Attorney, Jim Batchelor. Mayor Measamer opened the meeting with prayer led by Councilman Daniels. A motion was made by Councilman Daniels, seconded by Councilwoman Ward, to approve and to dispense with the reading of the minutes of the last meeting. The motion passed unanimously. The results of the election returns were read. Councilman Roberson made a motion, seconded by Councilman Daniels, to accept the election returns. The motion carried unanimously. The Mayor and the members of the Town Council were sworn in for four years by Magistrate Davis Jenkins. A motion was made.by Councilman Daniels, seconded by Councilman Roberson, to elect Councilman David Jenkins as Mayor Pro Tem. The motion was carried unanimously. Councilman Jenkins made a motion, seconded by Councilman Casper, to award the Wastewater Project Phase II contracts as follows: Contract I to Herring-Rivenbark for $113,640; Contract II to Peters & White.Construction Company for $1,806,246; and Contract III to Pitt Electric Company for $221,000. The motion carried unanimously. Copies of the bid tabulation sheets are attached to these minutes. On a recommendation from Ford Chambliss, engineer with The Wooten Company, Councilman Casper made a motion, seconded by Councilman Daniels, to authorize the mayor to sign a resolution of SOC with NCDENR in the event that the Town is denied membership in the Tar Pamilco Basin Association. Councilman Casper made a motion, seconded by Councilman Daniels, to join the Tar Pamlico Basin Association for $73,274.36 in back dues and approximately $4000 per year hereafter. The motion was carried unanimously. A motion was made by Councilman Daniels, seconded by Councilman Jenkins, to amend the Wastewater Project Phase II budget by $470,000. A copy of the amended budget is attached to these minutes. The motion passed unanimously.