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Home My WebLink AboutNC0026689_PERMIT ISSUANCE_19980213WDES DOCYNENT SCANNING COVER SHEET NPDES Permit: NC0026689 Denton WWTP Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Inspection Instream Assessment (67b) Environmental Assessment (EA) Permit History Document Date: February 13, 1998 This doctameat is priated oa reuse paper - igaore say coateat oa the reverse side State of North Carolina Department of Environment and Natural Resources • Division of Water Quality sy James B. Hunt, Jr., Governor AMA Wayne McDevitt, Secretary [D E N F1 A. Preston Howard, Jr., P.E., Director February 13, 1998 Mayor C. Ray Kirkman 101 W. Newsom Ave. / P.O. Box 306 Denton. North Carolina 27239-0306 Subject: NPDES Permit Issuance Permit No. NCO026689 Town of Denton WWTP Davidson County Mayor Kirkman: In accordance your request for an expansion from 0.3 MGD to 0.8 MGD, approved EA and FONSI received on May 2, 1997, 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 US Environmental Protection Agency dated December 6, 1983. The following change has been made to the above referenced permit • Limits pages have been included for 0.3 MGD (class 11) and 0.8 MGD (class III). The monitoring frequencies are given based on the facilility class and updated .0500 regulations. • Monthly monitoring of Total Nitrogen and Total Phosphorus at the 0.8 MGD flow has been given due to nutrient enrichment in Lick Creek. • The Supplement to Cover Page has been modified to include construction after receiving an ATC and a change of stream class from C to WS-IV. • The toxicity test language has been updated to the most recent revision, November 1995. The test is to be performed at 90% for both flows. Four out of the last twelve Mercury values reported were at the detection limit of 0.2 µg/l. The Division would like to encourage the facility to use clean sampling techniques in order to minimize the possibility of contaminating the Mercury samples. For more information, you may want to contact your lab, Ms. Connie Brower of the Water Quality Chemistry Lab, (919) 733-3908, or the cities of Gastonia and Winston-Salem which have both performed studies on clean sampling techniques. 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, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such demand is made, this decision shall be final and binding. Please take notice that this permit is not transferable except after notice to the Division of Water Quality. Part II, EA. addresses the requirements to be followed in case of change in ownership or control of this discharge. The Division of Water Quality may require modification or revocation and reissuance of the permit. P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-0719 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper NPDES Permit Issuance Permit No. NCO026689 Town of Denton W WTP February 13, 1998 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, the Coastal Area Management Act or any other Federal or Local governmental permit that may be required. If you have any questions concerning this permit, please contact Mary Cabe at telephone number (919) 733-5083, extension 518. Sincerely, Original Signed BY David A Goodrich A. Preston Howard, Jr., P. E. cc: Central Files Mr. Roosevelt Childress, EPA Winston-Salem Regional Office/Water Quality Section PDES-Unit - Point S— ource Compliance Enforcement Unit Mr. Rich Glover Jamestown Engineering Group 117 East Main Street / P.O. Box 365 Jamestown. NC 27282 Permit No. NCO026689 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 Denton is hereby authorized to discharge wastewater from a facility located at Town of Denton Wastewater Treatment Plant on NCSR 2569 southwest of Denton Davidson County to receiving waters designated as an unnamed tributary to Lick Creek in the Yadkin -Pee Dee River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, 11, III, and IV hereof. The permit shall become effective March 1, 1998. This permit and the authorization to discharge shall expire at midnight on August 31, 1999. Signed this day February 13, 1998. Original Signed BY David k Goodrich A. Preston Howard, Jr., P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Permit No. NC0026689 SUPPLEMENT TO PEP n41T COVER SHEET Town of Denton is hereby authorized to: Continue to operate the existing 0.30 MGD wastewater treatment facility consisting of a flow meter, bar screen, grit chamber, wetwell, comminutor, oxidation ditch with two mechanical aerators, dual secondary clarifiers with sludge return, sludge holding tank, sludge drying beds, effluent chlorination and post aeration, located at the Town of Denton Wastewater Treatment Plant, off NCSR 2569, southwest of Denton. Davidson County (See Part III of this Permit), and 2. After receiving an Authorization to Construct, construct facilities for expansion of the wastewater treatment plant to 0.80 MGD and relocate the discharge to Lick Creek which, is classified WS-IV waters in the Yadkin -Pee Dee River Basin. and 3. Discharge from said treatment works at the location specified on the attached map into an unnamed tributaiv ro Lick Creek which is classified WS-IV waters in the Yadkin -Pee Dee River Basin. 1 — e, V li LP k _f I. 'j.'j „Q < ( - � � I� ��ie . �i I.•I /I t•, ..I one �, j; ..�. J per i (� • I/Ell 0 / i �; mot=, MON= Proposed EFFLUENT OUTFACE DISCHARGE POINT l „�& 1 OfWASTEWATER TREATMENT V. ROAD CLASSIFICATION ?If"J.RV HhRY::.� L 16HT OUIY ROAD, HAROOR .:>R^ SURFFCE mmmm� IMPROVCU SURFACE I _cqD SUFF aO UNIMPROVED ROAD Latitude 35 37'22" Longitude 80009'22" vtap 1 E1 8SW Sub -basin 03-07-08 Stream Class WS-IV Discharge Codes 01 Receiving Stream L7 to Lick Ck. / Lick Ck. Design 0 0,3/0 .8 MGD Permit expires 08! 31 / 99 PLANT SCALE 1:24 000 0 1 MILE 0 7000 FCCT 1 0 1 KILOMETER CONTOUR INTERVAL 10 FEET QUAD LOCATION To`,vn or Denson VJWTP o Davidsonidson County A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NCO026689 During the period beginning ON THE EFFECTIVE DATE AND LASTING UNTIL EXPANSION ABOVE 0.3 MGD, the Permittee is authorized to discharge from oulfall serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Weekly Daily Measurement Sample Sample Average Avera a Maximum Fre uenc Type Locations Flow MGD 0.3 Continuous Recordin I or E BOD52 (April 1 - October 31) 19.0 mg/L 28.5 mg/L Weekly Composite E, I BOD5 2 (November 1 - March 31) 24.0 mg/L 36.0 mg/L Weekly Composite E, I Total Suspended Solids 2 30.0 m /L 45.0 mg /L Weekly Composite E, I Dissolved Oxygen 3, Weekly Grab E, U, D H 4 Weekly Grab E NH3 as N (April 1 - October 31) 6.0 mg/L Weekly Composite E NH3 as N (November 1 - March 31) 13.0 mg/L Weekly Composite E Total Residual Chlorine 5 2/Week Grab E Temperature, oC Daily Grab E Temperature, oC Weekly Grab U, D Fecal coliform 200/100 mL 400/100 mL Weekly Grab E, U, D Total Nitrogen NO2+NO3+TKN Quarter Composite E Total Phosphorus Quarterl Composite E ConductivityWeekl Grab E, U, D Chronic Toxicity6 Quarterly Composite E Notes: Sample Locations: E - Effluent, I - Influent, U — Upstream at least 50 feet above the discharge point, D — Downstream at the NCSR 2505 crossing located approximately 0.5 miles below t::e discharge point. . 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 oxygeri effluent concentration shall not be less than 6.0 mg/L. 4 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 6 Monitoring requirement applies only if chlorine is used for disinfection. 6 Chronic Toxicity (Ceriodaphnia) P/F 0 90%; February, May, August, November; See Chronic Toxicity section of the Supplement to Effluent Limitations. There shall be no discharge of floating sclids or visible foam in other than trace amounts. A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NC0026689 During the period beginning ON THE EFFECTIVE DATE AND LASTING UNTIL EXPANSION ABOVE 0.3 MGD, the Permittee is authorized to discharge from outfali serial number 001. (Continued) EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Location' Chromium — 50.0 a /L 2/Month Composite E Nickel 88.0 i /L 2/Month Composite E Lead. —25.0 a /L 2/Month Composite E Mercury 0.012 i /L 2/Month Composite E Zinc Monthly Composite E Cyanide.. Monthly Grab E Phenolsx Monthly Grab E Cadmium)( Monthly Composite E Copper Monthly Composite E Silver 71 Monthly Composite E A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NCO026689 During the period beginning UPON EXPANSION ABOVE 0.3 MGD AND OUTFALL RELOCATION TO LICK CREEK and lasting until expiration, the Permittee is authorized to discharge from outfall serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Weekly Daily Measurement Sample Sample Average Avera a Maximum Fre uenc T e Location' Flow MGD 0.80 Continuous Recording_IorE BOD5 z (April 1 -October 31) 5.0 mg/L 7.5 mg/L 3/Week Composite E, I BOD5 2 (November 1 - March 31) 10.0 mg/L 15.0 mg/L 3/Week Composite E, I Total Suspended Solids 2 30.0 m /L 45.0 m /L 3ANeek Composite E, I Dissolved Oxygen 3.6 3/Week Grab E, U, D H 3/Week Grab E NH3 as N (April 1 - October 31) 2.0 mg/L 3/Week Composite E NH3 as N (November 1 - March 31) 4.0 mg/L 3/Week Composite E Total Residual Chlorine 6 17 t /L 3/Week Grab E Temperature, oC Daily Grab E Temperature, °C 6 3/Week Grab U, D Fecal Coliform 6 200/100 mL 400/ 000 mL 3/Week Grab E, U, D Total Nitrogen NO2+NO3+TKN Monthly Com osite E Total Phosphorus Monthl Com osite E Conductivit 6 3/Week Grab E, U, D Chronic ToxiCit ' Quarter' Com osite I E Notes: r Sample Locations: E - Effluent, I - Influent, U — Upstream at least 50 feet above the discharge point, D — Downstream at the NCSR 1002 crossing near Healing Springs. 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/L. 4 The pH shall not be less than 6.0 standard units nor greater than9.0 standard units. 5 Monitoring requirement applies only if chlorine is used for disinfection. 6 Instream monitoring for temperature, dissolved oxygen, fecal coliform, and conductivity shall be conducted three times per week during June, July, August, and September, and once per week during the remaining months of the year. 7 Chronic Toxicity (Ceriodaphnia) P/F @ 90%, February, May, August, November; See Chronic Toxicity section of the Supplement to Effluent Limitations. There shall be no discharge of floating solids or visible foam in other than trace amounts. A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NC0026689 During the period beginning UPON EXPANSION ABOVE 0.3 MGD AND OUTFALL RELOCATION TO LICK CREEK and lasting Until expiration, the Permittee is authorized to discharge from outfall serial number 001. (Continued) EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Locations Chromium 50.0 /L Weekly Composite E Nickel 88.0 /L Weekly Composite E Lead 25.0 /L Weekly Composite E Zinc 2/Month Composite E Cyanide 2/Month Grab E Phenols 2/Month Grab E Mercury 2/Month Composite E Cndmiuni 2/Month Corn osite E Copper 2/Month Com osite E Silver 2/Month Composite E Pemiit No. NCO026689 SUPPLEMENT TO EFFLUENT LIMITATIONS CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY) The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised November 1995, or subsequent versions. The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality is 90.0% (defined as treatment two in the procedure document). The permit holder shall perform y_uarierly monitoring using this procedure to establish compliance with the permit condition. 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. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B. Additionally, DWQ Form AT-1 (original) is to be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Water Quality 4401 Reedy Creek Road Raleigh. North Carolina 27607 Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data. 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 perruntee 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 any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. Should the pernintec fail to monitor during a month in which toxicity monitoring is required, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. 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 pemut 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. QCL P/F Version 9196 cc: Permits and. Engineering OCT 14 1997 QTechnica13§* upportrBranchi County Health Dept. POINT SOURCE BRANCH Central Files WSRO SOC PRIORITY PROJECT: Yes X No If Yes, SOC No. 96-23 To: Permits and Engineering Unit Water Quality Section Attention: Mary Cabe Date: October 7, 1997 NPDES STAFF REPORT AND RECOMMENDATION County Davidson Permit No. NCO026689 PART I - GENERAL INFORMATION 1. Facility and Address: Mr. John Everhart, Town Manager Town of Denton P. 0. Box 306 Denton, N.C. 27239 2. Date of Investigation: September 3, 1997 3. Report Prepared by: Abner Braddy 4. Persons Contacted and Telephone Number: John Everhart, Town Manager (910) 859-4231 Dan Pritchett, P.E.; Jamestown Engineering (910) 886-5523 5. Directions to Site: From Winston-Salem, travel N.C. Hwy. 109 South to Denton; turn right at the stop light onto. Peacock Street (S.R. 2511); travel 0.8 mile to High Rock Street (S.R. 1002) and turn left; travel 0.1 mile and turn left onto S.R..2569 after crossing the railroad tracks; go .past the furniture plant on the left, pass through the gate at the entrance to the dirt road, and follow the dirt road to the WWTP at the end. 6. Discharge Points(s), List for all discharge points: Latitude: 350 37' 22" Longitude: 800 09' 22" . The Town's engineers are considering a request for the discharge at an alternate site on Lick Creek.. During the September 3 on -site evaluation, each of the locations was visited. Although the location being investigated for purposes of this application is only approximately 1000' downstream of the alternate site, what appears to be a relatively significantly -sized tributary enters Lick Creek: between.the two locations. That unnamed tributary is the one into which the Denton WWTP presently discharges. The reason given for the applicant considering the alternate site is the fact that there does not appear to be sufficient working right-of-way between the unnamed tributary to Lick and S.R. 2504 at a point about 400' upstream of the proposed discharge point. Due to the right-of-way constrictions, the engineer stated that at least one, and possibly two additional creek crossings will be necessary to reach the proposed discharge point. The latitude and longitude of the alternate site are: Latitude: 350 37' 27" Longitude: 800 09 17" See attached letter. U.S.G.S. Quad No. E18SW U.S.G.S. Quad ,Name High Rock NC 7. Site size and expansion area consistent with application? X Yes No If No, explain: There is sufficient room for the proposed expansion. 8. Topography (relationship to flood plain -included): the site is level, and is above the flood plain. 9. Location of nearest dwelling: None within 1006.01. 10. Receiving stream or affected surface waters: Lick Creek a. ClassificationWS- Yadkin 03-07-08b. River Basin an�b �P C. Describe receiving stream features and pertinent downstream uses: Lick Creek is a rural watercourse; with agricultural uses. Its "WS" classification stems from the fact that it flows into Tuckertown Reservoir. Part II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS 1. a. Volume of Wastewater to be permitted: 0_8 MGD (Ultimate Design Capacity) b. What is the current permitted capacity of the Waste Water Treatment facility? 0.3 MGD C. Actual treatment capacity of the current facility (current design capacity)? 0.3 MGD d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in the previous two years. None. e. Please provide a description of existing or substantially constructed wastewater treatment facilities; Bar screen, comminutor, grit settling NPDES Permit Staff Report Version 10/92 Page 2 basin, wetwell (4 pumps),.�258,500 gallon oxidation ditch with 2 aerators, twin 25.0' diameter clarifiers, chlorine contact chamber with gas chlorination, followed by cascade aeration. Solids are handled in an aerated sludge holding tank (45,100 gallons), and there are also six 920 square foot sludge drying -beds, though they are not currently in use. f. Please provide a description of proposed wastewater treatment facilities The wetwell pumps will be modified, an additional 400,000 gallon oxidation ditch will be constructed. Discharge from the new oxidation channel will be split to evenly distribute flow between the existing 25' clarifiers and a new 30' clarifier. A new 35' clarifier will receive the flow from the existing oxidation channel. The chlorine contact chamber is to be tripled in size. From the chlorine contact chamber, effluent will go to dual tertiary filters, followed by sulfur oxide injection for de - chlorination. Three additional sludge drying beds will be constructed. The effluent outfall will be relocated from an unnamed tributary to Lick Creek proper via' 10,500 linear feet of 15" gravity sewer line. A generator for stand-by power is also being provided. g. Possible toxic impacts to surface waters: None known. h. Pretreatment Program (POTWs only): in development approved X should be required not needed 2. Residuals handling and utilization/disposal scheme: At present, the Town's sludge is trucked to the City of Lexington's compost facility (WQ0001318) where it is used in that program. a. If residuals are being land applied, please specify DEM Permit No. Residuals Contractor Telephone No. b. Residuals stabilization: PSRP PFRP Other C. Landfill: d. Other disposal/utilization scheme (Specify): The Town's approved 201 Facilities Plan calls for the permitting of agricultural land, and the establishment of a land application program. NPDES Permit Staff Report Version 10/92 Page 3 3. Treatment plant classificatioW'(attach completed rating sheet).. 3 4. SIC Code(s): 4952 Primary 01 Secondary Main Treatment Unit Code: 1 0 1 5 PART III - OTHER PERTINENT INFORMATION 1. Is this facility being constructed with Construction Grant Funds or are any public monies involved. (municipals only)? The project is being funded in part by State Revolving Loan Fund monies. 2. Special monitoring or limitations (including toxicity) requests: None. 3. Important SOC, JOC or Compliance Schedule dates: (Please indicate) *Draft SOC is in Central Office. Date Submission of Plans and Specifications November 1, 1997 Begin Construction July 1, 1998 Complete Construction July 1, 1999 4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge options available. Please provide regional perspective for each option evaluated. Spray Irrigation: Ruled out during the 201 evaluation as cost prohibitive. Connection to Regional Sewer System: N.A. Subsurface: N.A. Other disposal options: 5. Other Special Items; PART IV - EVALUATION AND RECOMMENDATIONS The Town has routinely exceeded their flow limit for the last 2 years due to excessive infiltration and inflow. They have undertaken a program to rehabilitate various sections of the sewerage system, as required under the approved 201 Facilities Plan. Those areas identified as being most in need of repair or NPDES Permit Staff Report Version 10/92 Page 4 replacement are to be rehabilitated,by July 1, 1998, under the proposed S.O.C. . The addition of the new treatment components should produce a higher quality effluent, and the relocation of the outfall to the main stem'of Lick Creek will improve the water quality in the U.T. where the WWTP presently discharges. The Region recommends the permit be issued with 2 sets of effluent pages, one at 0.30 MGD and one at 0.80 MGD. Siqnature of Water Quality Regional 45upervisor l� 0 - / Date NPDES Permit Staff Report Version 10/92 Page 5 PERMIT NOTES mlc NCO026689 Town of Denton WWTP Davidson County Facility wants to expand discharge from 0.3 to 0.8 MGD via expansion (class III). 5/2/97 Received application, approved EA and FONSI, and $400. 6/4 Requested SR and WLA. Construction Grants is reviewing the ATC plans. 8/1 Called Jay Lucas about status of plans; he will cc P&E on ATC approval letter. Called WSRO about status of SR. Left a message with Jim Johnston. 8/5 Proposed outfall location change. Abner Brady, WSRO will meet with Jamestown Engineering this Thursday or Friday to look at it and will then send SR. Andy McDaniel is working on WLA. 9/25 Received WLA files from Andy. Called RO about SR; Abner will try to get it here next week He is unsure if there is positive flow at the new discharge point. 10/14 Received SR. Facility will change discharge location to Lick Creek. Proposed treatment units will be different than those proposed on SR; Ultraguard UV system instead of chlorine. Cecil Madden, CG is reviewing plans. 10/20 Drafted Permit: Will issue with 0.3 (class II) and 0.8 (class III) limits pages. WQ limited toxicants: with limit = 2/month, monitoring only = monthly for class II facility toxicants: with limit = weekly, monitoring only = 2/month for class III facility ESB has requested monthly monitoring of IN and TP at the 0.8 MGD flow due to enrichment in Lick Creek. Modified Supplement to Cover Page for construction after receiving ATC and change of stream class from C to WS-IV. Updated tox test to Nov. '95 revision, 90% at both flows. Compliance - 19 flow violations in last two years. Failed 13 out of 29 toxicity tests since 1993. CF - Revised 201 Facilities Plan states that dechlorination will be included and the facility will review its pretreatment plan to ensure it is protected forom SIU loads. (dechlorination will not be required if the facility uses UV.) Receiving Stream - Yadkin -Pee Dee River Basin 03-07-08 (Class C in last permit) 0.30 MGD UT to Lick Creek 0.80 MGD Lick Creek WS-IV 8/3/92 Index #: 12-126-(3) From East Branch Lick Creek to a point 1.0 mile upstream of Davidson County SR 2501 10/23 Wrote draft cover letter with all changes summarized and encouraging facility to look into clean analysis techniques for Mercury. To SDP for review. Public Notice: 11/5/97 Schedule to Issue: 12/22/97 21Vs OCH Jp rddpl 16 - 6r)�5 , Page 1 Note for Mary Cabe From: Don Safrit Date: Tue, Oct 14, 1997 7:37 AM Subject: UV -Disinfection Presentation To: Non -Discharge Permitting Unit; NPDES Unit fyi... Date: Mon, 13 Oct 1997 14:09:29 -0400 From: ceeil_madden@mail.ehnr.slate.nc.us (Cecil Madden) Subject: UV -Disinfection Presentation To: Alan_Amor@ntail.ehnestate.ne.us (Alan Amor). dblaisdell@maiLehnnstate.ne.us (Daniel Blaisdell), Bobby_Blowe@maihchnr.stete.nc.us (Bobby Blowe), rob _brown@ maiLehnr.state.ne.us (Rob Brown), Bennie_Gaetze@maiLehnr.state.nc.us (Bennie Goetze), daveg @dem.ehnr.state.ne.us, Gene_Johnson@mail.chnr.state.ne.us (Gene Johnson), Jay_Lucas@mail.ehnnsmte.nc.us (Jay Lucas), Robert_Macsengill@mail.ehnestate.ne.us (Robert Massengill), Jahn_Royal@mail.ehnr.state.nc.us (Jahn Royal), Ryan_Scruggs@maii.chnr.smte.nc.us (Ryan Scruggs), Bob_Tculings@mail.ehnr.smte.nc.us (Bob Teulings), dons @ de m.ehnr. state.nc. us. ALLEN_WAHAB@ntail.chnr.smte.ne.us (Allen Wahab) Emory Wilson representing Ulna Guard will be making a presentation in large conference room of the Construction Grant% and Loans Section at 10:30 on Tuesday the 14th of October. You are most welcome to attend. Ultra Guard has a product that they feel competes with the Trojan UV-4000. They propose to use the product in the Belhaven project and the Denton project. RECEIVED N.C. Dept. of EHNW"$5�S AUG 14 1997 DEHNR/DWQ '"tinSQCI-5alern FACT SHEET FOR NPDES PERMIT DEVELOPMENT NPDES No. NCO026689 Regional Office Facility Inform, ation A licant/Facilit Name: Town of Denton/Denton WWTP Applicant Address: Town of P.O. Box 306 Denton, NC 27239-0306 Facility Address: Permitted Flow 0.8 MGD Type of Waste: Domestic - 85 % Industrial - 15 % Facility/Permit Status: Existing/Modification County: Davidson Ctrpnm Charartrr cticc Receiving Stream �0 Lick Ck. Stream Classification C Subbasin 03-07-08 Drainage Area (mi2): 26.2 Summer 7Q 10 (cfs) 0 30Q2 (cfs): 0.09 Average Flow (cfs): IWC @ 0.8 MGD (%): 100 Miscellaneous Regional Office: Winston Salem USGS Tovo Ouad: I E 18 SW Wasteload Allocation Summary The Town of Denton has applied for an expansion and relocation of its discharge from 0.3 MGD into UT Lick Creek to 0.8 MGD into Lick Creek. UT Lick Creek has an estimated 7Q30/30Q2 flow equal to zero. However, the 30Q2 flow for Lick Creek is estimated to be slightly positive (0.09 cfs), hence the relocation and expansion to this creek. There are no other NPDES permitted dischargers in the Lick Creek watershed. The lower reaches of Lick Creek received a Fair bioclassification based on a 1996 benthos survey. Both point and non -point source pollutants are believed to be contributing to the impairment of Lick Creek. Denton has had difficulty consistently passing its toxicity tests, failing 13 of 29 tests since 1993. Although residual chlorine in the effluent may be contributing to toxicity, there does not appear to be an obvious correlation between elevated chlorine concentrations and tox test failures. It is recommended that the monitoring frequency for cyanide, phenols, mercury, and silver be increased from quarterly to monthly in the 0.3 MGD permit. The expanded 0.8 MGD /facility is expected to be rated at least a Class III, therefore monitoring frequencies Ge� consistent with this rating are recommended for all toxicants. r� rX�, Fact Sheet For NPDES Permit Development NPDES No. NC0026689 Page 2 of 2 In response to reports from ESB of nutrient enrichment in Lick Creek it is recommended that monthly effluent monitoring for TN and TP be required in the 0.8 MGD permit. Instream and effluent monitoring frequencies in the 0.8 MGD permit should be increased to be consistent with a Class III facility. DMR/WET Data A reasonable potential analysis for toxicants was run using 1994-1996 DMR data. Effluent monitoring for cadmium, as opposed to a limit, is recommended for the 0.8 MGD permit. All 57 observations for Cd were below detection. Four of twelve Hg values were at the detection limit of 0.2 ug/L. These values are considered "hits" and a limit is recommended. However, the facility is encouraged to use clean sampling and analysis techniques in order to minimize the possibility of Hg contamination in their samples. A review of 1994-1996 instream data did not reveal any significant DO problems in UT Lick Creek. Proposed Schedule for Permit Issuance Draft Permit to Public Notice: Permit Scheduled to Issue: State Contact If you have any questions on any of the above information or on the attached permit, please contact Mary Cabe or Andy McDaniel at (919) 733-5038 ext. 518 or ext. 513, respectively. Recommended by: 404W Aaw4z, Date: $ 01f Reviewed by Instream Assessment: Date: 7 Regional Supervisor: —L2 4 � � �_ Date: Permits & Engineering:Date: 3xr RETURN TO TECHNICAL SUPPORT BY: NPDES WASTE LOAD ALLOCATION PERMIT NO.: NCO026689 PERM=E NAME: Town of Denton FACILTI'Y NAME: Town of Denton Wastewater Treatment Plant Facility Status: Existing Permit Status: Modification Major Pipe No.: 001 Minor J Design Capacity: -0:300 MGD Domestic (% of Flow): Industrial (% of Flow): Comments: 85 % 15 % RECEIVING STREAM: - unnamed tributary to Lick Creek Class: C Sub -Basin: 03-07-08 Reference USGS Quad: E 18 SW (please attach) County: Davidson Regional Office: Winston-Salem Regional Office Previous Exp. Date: 8/31/99 Treatment Plant Class: 2 Classification changes within three miles: Requested by: Prepared by:_ Reviewed by: 3oD wkl (a - Modeler Date Rec. # A 14 YY\ CD5 I CAI 1 gsss 2 L') Drainage Area (mi ) pZ�p. Avg. Streamflow (cfs): 7Q10 (cfs) 0, 0 Winter 7Q10 (cfs) 30Q2 (cfs) 0.09 Toxicity Limits: J*tle 20 % Acute Chroni Instream Monitoring: Parameters dr Upstream Location Date: 6/4/97 Date: % LA f Co Date: r'I For 0.3146D t ?W ^7/4 Sf 3o,5 t-7/4 Fd r o.8 m6D * 241 powlt_ s / ,wP . i Downstream Location Effluent Characteristics Summer Winter BOD5 (mgM NH3-N (mg/1) D.O. (mg/1) TSS (mg/1) F. Col. (/100 ml) pH (SU) UY m iAl md Mh ;)�o. ti CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY) The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised November 1995, or subsequent versions. The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality is -70 % (defined as treatment two in the procedure document). The permit holder shall perform quarterly monitoring using this procednre to establis compliance with the permit condition. The tests will be performed during the months of /y V. Effluent sampling for this testing shall be performed at the NPDES permitted fina effluent discharge below all treatment processes. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B. Additionally, DWQ Form AT-1 (original) is to be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Water Quality 4401 Reedy Creek Road Raleigh, North Carolina 27607 Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data. 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 any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. 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. QCL P/F Version 9196 Page 1 Note for Cada Sanderson From: Andy McDaniel Date: Fri, Aug 8, 1997 1:29 PM Subject: Denton To: Carla Sanderson Michelle included monitoring for phenols in the last WLA because no data was available on phenol concentrations in the effluent. I am speculating here, but I would assume that since a textile mill is tied into the system she had reason to be interested in the possibility of phenols in the effluent. I think she was justified in recommending the monitoring requirement. Only 8 data points were collected since the last WLA which is not enough to do a reasonable potential test. I'd recommend retaining the phenol monitoring in the permit until more data is collected. At the next permit go round we'd be in a better position to evaluate the need for further monitoring. If 199q-199� emy 4ta, OHM Facility NArW NPDES # Discharge sur; Imer7010 /WC AAr3Ifflic Max Pred Cw Allowable Gw cadmiti MaxPred mCw Allowable Cw Max. Prod Cw Allowable Cw Max Prod Cw Allowable Cw Max Pred Cw Albwablo Cw Max Pred Cw Allowable Cw LW Max Pred Cw Allowable Cw Max Pred Cw Allowable Cw Nicke MaxPred �Cw Allowable Cw 0.00 c#s 1fl0% Maximum Value 5 0,011g/1 50=0 µgll Maximum Value t 0.0 pW1 2:0 pg/i slue 26 50 Maximum Value 265 875 pg/l 7.0 Ilgil Max)mumWalae & ►3 ugil 0141 Maximum value me 0:0 mgEi 1.8 Mga Maxuuum Value 53:fl 9511g/l 2541 Maximum Value 0,2 0.4 pg/l 0.0-12 µg/1 Maximum Value 63 14541 bB µgtl - Aa e ";�/ A4hi�, IPGL��1NvIti't�.tt� i�Yl0rli7�/'i/Z�% � !�OLGdC �a Cr - ��►�►� f ytiou�� rPn�►rr� � ��rhzr� �- rY- It -�-G' JXA 14161nd, <-- AA - 4wt qOdl Selenlultl Maximum Value 5 Max. P7ad Cw 01tg11 Allowable Cw 6.0 pW4 D Savar M Mammam Value 6 Max. Pred Cw 0'.0 RWI Allowable Cw 0.1 lrg/1 f�u-- ax. P ed 1 MaW value 438 Max. Prod Cw 1 SD Allowable Cw 50 }tg/1 Phenols Maximum Value 5 Max. Pled Cw 0 Pgn — �G L(/7 /G wwwlwVVV WWW Allowable Ow 0 wgll // l` MID Maximum value 31� dGT CLO Max. Prod Cw 041 Allowable Cw ONgdi 8/5/97 I r, - -Arsenic - _ -Cadmium - - Chromium 50.0... 2 pgA 50.0 RESULTS -RESULTS ^, R S�?S t - 5.0' <70 Std Dev. '0.0 . / - 1 "<2 Dev. 0.0 1. 26.0 -26 Sid Dev. 4.8 - e2.:.15.0 <10' Mean` 5.0 2 1 - <2 ,-Sid ' Mean: 1.0 2. 5.0 - <10-. -.Meam 4S -3` 50`' =. F10 C.V.- 0.0 3 1, ..<Z C.V. 0.0' 3 - 50 '<10 C.v. '"1.0, 4 a 5.0 - <10 4 - 1.. <2, - - 4 5.0 -- 10 - - - 6 Mult Factor „ - k. 6 1 ' <2' Mult Factor 6'. 5.0 "<10 Mult Factor 22 e 7, .Max. Value 5.0 pgA. 7 ' 1 _ <2' Max. Value ' 1.0 pg4 7 - &0, <10 Max. Value 26 0pg/I 9 .:Max. Pmd Cw ' 0.0 p9/I e Y - <2 'Max. Pied Cw 0.0 pgll 8 5.0 <10 Max. Pred Cw 57pgA 9 Allowable Cw 50.0pg(I 9 . 1 <2 Allowable Cw 2.0 pg9 s. 5.0 <10 Allowable Cw 50 pg/I ., 11 - 11 ' 1 - <2 it 5.0 ` <10 - - _ 12 12 1 <2.. 12 5.0 1 <10 13 - /3 1,. .. <2 �- : '13 10.0 10 - 14 .. - 14 1 <2 14 10.0 10, 15 15 1 - ' <2 15. - 250 25: 16 -.. -- 16 . -1. - - <2 ` " 16 5.0 . <10 - 17 17. 1 ' <2- 17. 150 15 - 18 -. - 19 1. <2 .. p 18 - 5.0 <10 - 19 19 ,1- <2 .. 99.. &0 <10 � .. 20 20 1 <2.. :20 - -5.0 <10 21 21 -1 <2 `' 21> 5.0 <10 22 _ 22 1 <2 ` - - ffi' 5.0 <10 23 - -. - 23 1' +<2 23. -.. 13.0 - 13` 24 . .. 24 '1' <2- - 24� 25 <5 25 - - 25 1 - Qj2 25 - 2.5 <5 - r26 - 26 1 <2 - - m 26 2.5 <5, 27 ;: 27 1 .. <2,_ - .. 27` 2.5 <5= .. 2a - - 28 1 <2 * 28 - 2.5 15� - - 29 29' 1 •. <2 29. 2.5 - <5.' 30 30 1 - <2 30 2.5 _ <5' 'f ;31 31- 1 _ <2 - 31 ' 2.5 - <5, 32 32 1 <2 32 2.5 <5� ` 33 1 '- <2 - 33 ` 2.5 <5. _34 e' - 3n' 1 <2 . 34 .E 2.5 <5." .. _ \35 - 35` 1 `_. <35 36 ,<2 36 1 - <2 e -°38'.-- 25 - r <5^ - 37 37 1' _ :<2 37 25 .`.<5' ?{ 1 <2' '38 2.5 -<5 39_ 39 1 .x <2 '39 '... 25' '. <5 41 - 41 1 <2 .41 25 ' :<5 u. 42 25 <$ 43 43 Y <2 63 2.5, . <5 - - 44 44" <2 _ - 44. ,. 2.50,<5 " I 65 - 45 Y c - <2 - - 45 - 2.5 ,<5 45 -' 46 „ 1 <2 46 2 5 -. <5 '. 1 67 47 1 <2 - "47- 25<5 49 _ 48 x i.. 1 2 '`48 `. 25 ;<5 49 49 b x <2 49 2 5 a5 50 _7 so = _ 1 <2 _ 50 2 5 5 51 51 1 2 51 2.5_-'- <5' --� 62 62 1 - 1. 52=.' 53 -' 53 1 <Y 54 54 ' - 1 <2 _ .. *54; -- 2 5. '<5 55 55 1 £., <2 s- 55 2.5 "i! _ 56 _ �.' 56 1: -- <2 .56 _ 1 .56 ..� 7 _ _ - ,58 8/5/97 R/5W Lead 25.0' 12.5 _ RES I T_S <25Sid Dev. 7.0 12.5• -<25 Mean 9.6 12.5- <25= C.V. 0.7 12.5 <25 125 <25' ' -125 - <25-Mull Factor 1.8. 12:5. <25: Max. Value 53 pgA 12.5 a25, Max. PredCw 95 pg/I. 12:5' <25 , Allowable.Cw 25 pgA. 170 -17 - 5.0. <10 5.0' <10 - 5.0 <10 . 5.0 <10 5.0 -' a0 5.0. <10 - 5.0 <10 - " 12.0 12 ,. 18.0 18 - 5.0 <10 -" 5.0 <70' - ;' 5.0 <10 5.0 <10 5.0 . <10 5.0 <10 5.0 <10 11.0 11. 130 ..13 _ - - 5.0' ' <10 50<10 5.0' '.' .<10. - -5.0 -` :<10 50- <70' 50 <10. 50 <10- 5`0 .<10 ---50, 210' 12: - .12.5- '<25 T 12.5' <25 '. > 125 "<25' ` 7 12.5. 25 . 125 _.<25 - -.� 12.5 --<25 ` 12.5 �_ `Q5. 12.5 '" <25 ' 12.5 : _� <25 ,�.125 "" .-<25v- 12.5 25 -125 Q5° � 12.5 "<25 - P125' -<25 �125 `.<25 ` z Mercury _,- 0.0120 1 ;0.1' <.2 - Sid Dev. 0.0 2 0.1 .2. _ Mean 0.1 . 3 0.1' <2, - CV?^ 0.4 4 _ 0.1 <2 - i5 011 E 2' ' 6 - �0.1 - <2 Mull Factor' 2.0 7 - _ 0.2 _ 0.2 Max. Value 0.2 pg/I, 8 - 0.2 .' 0.2, Max. Prod Cw 0.4 pgrl. 9 ` 0.2 - 0.2- Allowable Cw 0.012 pg4 10 0.2 0.2 11 _ 0.1 <.2 12 0.1 <2 " 14- - 15 16 17 .. 18 19 ' 20 ^ 21 �. zz 23 ' 24 , 25 26 27 .. - 28 29 ' '.30 31 32 33- 35 36. 37 38 39 40' 41 42 „ 43 44 45 48 47 49 50 " 51 52 53 54 55 `56 SJ _ 58 59 60 88 n 0 <.01 RESULT ' 1 5 <10.� Sid Dev. 93 2 18. 18 Mean '8.1 3 5 d10 C.V.•1.2 4 18 18 5 39 39 .. - 6 63 63 - Mull Factor 2.3 7 18' . - 18, Max. Value 63 pg/I 8 5 110 Max. Pred Cw, 145 pgA "9 5 _<10 -Allowable Cw 88 pgA 10 '.5 : <10 11 15" ,.15. 12 5 <10 - - 13 5 <10 14 5 . -<10 15 5 .<10-` _ 16 5 ' <10 - - 17'. 5.<10 ..- .. is 5 .00 19 19 -19 20 10 10 21 - -5 - <10 22" 5 _210 23 12 24, 5 '<10= - 25 5 <10 ' - 26 5 <10 27 5 ' <10 28 :.5 <10 ' 29 5 <10 51 <10 1 ' 31 5 <10- 32 - 5 <10 - ; 35 - 5, <10 36' 5 <10 -37 =.m 5 . <10 „39 5` " <10 - -40 ' 5 : Z10 43 5 „ .. = <10 44 5 <10 - "<S e 5- � -- 10 rah 5 . <10 �48'' .-5 51-- 5 -� `;<10 52a 19`= v-09d r 53 �:. ' 5 " .<10 tf 815197 Selenium Silver [ALj - - Zinc [ALI_ 5.0: .. 0' ' 50.0 "_. RESULTS n : t + - - RFCI it TR- ' � n '. TC RESULTS 50" <10, Std Dev.. 00 1 2.5 <5 ,,. Std Dev.:.. ,1 0 1, _ 69 69, .. Sid Dev. 72.0 50 <10- -Mean 50 2 2.5 .. <5 Mean-: 28 .: 2 '50 50, - Mean 69.7 5.0` '' <10 ;. CN.. 0.0 -: 3' 2.5 -.. <5 C.V. 04 3.. .:. 55 '.55 ? -.CV ,. 1.0 '. 5 0, <10:: '_ - 4 "- 2.5 ." <5 4 - - 30 , 30 =. 5 2.5 _ <5 21 21 'Mull Factor - N ` ' 6 2.5 ` - <5 Muff Factor 6 - 44 44 Mull Factor _ 2 5 ' ., Max. Value - 5 pgA .: 7 2:5 <5 'Mix. Value `6.0 pg11 ]' ` 92 - 92 Max. Value 433 pgA Max. Prod Cw 0 pg1l ' 8,. ^2.5 <5 Max. Pred Cw 0.0 pgtl 6 26 26 Max: Pred Cw 9,083 pg11 Allowable Cw, 5.0 pgA :. 9 _ 2.5 <5 Allowable Cw 0.1 pgA 9 - 31 ' 31 Allowable Cw, 50 pg9 .. m10 2,5 <5 _ -. .; t0. -. 76 76- ' _. 11 6.0. <5 11.. 22 .. - 22 12 2.5 <5 12. 43 43 13 13 28 28- 16 - .. 14 53 u 53 - 15 . 15 _ 44 .. 16 : 16 17 . 17 'r]. ,. - 17' 21 21 - 16 .18. 47 '. 47 = 19 27,. 27 .. .. 20 20._ 158 .158 - 21 . .. 21 r 87 87 .. 22 -. -' " 22. 68 68 `23- `23 i. ' 52 52 . 24 - _ - 24 33 33 , - - _ 25 .. 25 42 '; '. 42 .. 26 '- 261 - 433 433 27 27. -. 66 '-. z. 66 - 28 2a + 61 -- '61 - 29 . 29 67 67 ,..231 _ .. - 30 _ 30. 231 , 31 .. $1. 45 45 32 ' - -' 32 78 : 78 -... 33 - 33 100 `' '100 ' 34 _ 34 481 -48 35 35 ., 55 255 - :. 36 38. 119 '.` 119� '37 37 44 ,44 , M 46 "46 . 39 39 88' "BB 40 W/ 9] &551 50 n RFSULTS` `1 2.5 - 5 '" Std Dev. 1.P 2 2.5 <5 is Mean 2.8 '3 2.5. <5 C.V. 04 4 2.5 <5 5 '2.5. <5 6 25 <5 Mult Factor 2.1 i - 2.5 <5 Max Value 6.PgA a 6.0 6 Max. Prod Cw 13y9r1 9 2 5 <5 Allowable Cw 5.6 pgll 40 2.5 <5 11 2.5'<5 12 W/ 7 WIIOLL'FFI:LIII'.N'1"f(IXICIIY I'PSTINQ OIS(?I.P-M/JNi-r/11tIN(i SI)MMNtYI N'tuoul 14,1997 'N'ILL ll'lIIIIIlIIh111N" WAR 'AN 4:11 MAR M•Il MAY INN WO At"; SVIL .N- F+17I HY liar. C..... krv<ue <1.nm>f./062 1'cm, Tate, plf w:nnmi.: uO`J y.id OJ Pe.. --- 1'eu ... P.a.... Pass ... I'nar FailNt. ... '(III70l57ANlt 1lcgin: Sllr)5 Fnmucacy:Q WF Wn Apr Jul ILn Nun(nmp. Oa Pols.ell P. s. - fees ..- -. --- -- Pus - -- C..."'A4ve N<gion:WANO S.ml(:11055 US Pass UB PoII -- - Fall� _- Fe4Fnx FaHaY,FeYI dr FILM Pang) Pnaa nsa(al :-: Prae(+),Fell "" 111':NA gP¢LI el FLOW ,Pass _ ❑ayco Corp, I'..... da Lanni.: 23% OJ ... ._ ... ... "- ... --- — .-- .-- NCo0MJ39/001 OcginAVIJ96 1'mrycei Q I'll' A I'ch May Aug NOY NOnCoo.p: 94 --- ... ... Pass — -= Fail Pas.-- Count Ila mJ R<- ANN Suhbasim lH005 Y: Yw 81nn: OS -- 06 --- Pa++ Pa.. -- -- -- --- Pass _. Pau Pau I'P I Special B P .-- --. Pas. 7QIO 56 PhyQ 2]0 B -- r 01 14 ter lien: Il'R. Ilelln Mill renn( 00 Ix Ix 42 I.1. IB 7.0 IB BI,IB BI --- --- I5.6 --- --- 309 NCINXMI'101001 Ocgin:911195 Pmpc"cy; Q Afar Len tic" Ikc N—Cnmp:ChV ILLY, a< --- --- JI ... ... >44 ... ... 61 Cou,n Y:Cdawlu Ile' Mllll subtuin:(711115 gwn: US _. 31.1 JI ... -_ ... 91 _. . aN ... ... N.U11 Igl.1 0 Specl.l U0 ... --- ... - 7010 12 IW((%)II FLY! (uu Fund -- F F 1 P I'IixM 1:111t LAM: 90'W OB --- NI Pa..Ni� Pnva .-- 1'ns .-- -.. I'uaa ... nrgin:9/Ir)4 PmpurcY: Il I'll: A POh M:ry Aug Nnv N.In(:o'.Ip:$IN(11 I Oa -- Pau --- NM'nll ... I'uea Pase -- Pave - I'aY 1'M FW2�BWMI w.n N<gion:WSN(I Sunhmiu; VAINIX 0'.-- UU ... Full run __ ... 1'... •.....0! --- Pass -- Ino Id! F l 1 -- V... I VIC1%): I W Ilidr Ynrns• Inc. PERM CUR LIM: kilt ((;"it) 00 '"' ... --- --- --- --- -_ _- --. .-. .-. -- NCW837631MI ncgin:x/Ir/J FmNcncy: Q Pill A Ian Apr Jul lh, NonCnmp:SINfl.lt 04 --- NMI Paso -" -_" ref+ tat. NRIP... 1.1. I'..e .". Caunry: S.udcy Neglect: M1l H(1 Suhnarin:YAl p7 05 Fell 06 NI NMI Lnm Pna I'na -- NIt'Fe4 P... -- It... --- -. I'll:A 072 speel.l / 11 ... ._ Poaa -.. 7010: 0 IWC(A):I W NCOI26354IWI ❑.g;n:NIpJS Fml'u^cY: (1Pill d Fcn Ma, Aog Nnv NonCnnlp:5l Nlil li dX --- Cnumy:Mcoklvnn..,g Ncxinn: Alll0 SuFlua;n: Cl'Igt OS--- ___ ._ Pnn --- Pa.. NI I'11I002 Special .1 ]110 800 IW IY)001 Iei INF-II ILSe Iii—r-Allen dill Ponnda lily. n.IU UB .'unn - ... I^aa faun ... . I Funn _.. .__ ... --. NI'INNN`Y19IIY13 nagin:I IV Ir1li Fm14t) 111'l1' A Inn Apr Jul Ik. NnnCmnp:SlnY,1e O4 Felt. NI .-- I'nu V... ... ... I"... I'... ... ... Cnumy.l lawm Ikginn: h111(1 tiunh.ni¢(f111 41 US lines 00 1'u.a .-- .. ... Turn --- I'... .". .-. Turn ... ..• I'In I I sr¢LI O I l P ... funs Turn Ih:4e 1'uwmllclew. Crete/OdJ I'IiNhl ClIx LIM1I; 11'X�IGIIAIII U:1 ... 1'... P...--- -.- ... -- Plaut Paea ... -- ..- --- pass --- -- Pena -- NCB(134JGSttlf11 Ocgin:5/I/9l I'ml"c"':fl Q Pill A Pen May Aug NnY I. Nn,C SIN(d l! dx "" Pna. I'a+a -- NIIPun ..- y Suhnasin. NIIA01 I:aun.y:51o4cs Nc •ion:WSNO 95 -�� On ... Pane Pea' ... -- .- rnPass.. -.. Pe+. _. _. Pura spe<I.I r F:7.7 N.J<f 70I0: 40 IWCI'bl:1JD dd• ... ... >unr Ihikc I'uwoAW a4 Slum I'Ii1l M11 AI:LIM: MI'Y�IIAI'II IIN CI(IlIN IJ HlAIII "." ... >too' ... ... >IW d Mnrhln Sa Ikc NnnCnm' NCINlW7]IIWt Ocgin:'1/Irod I'nq.ercY:Q P I'' 04 ... ... >IW' --- ... IW, --_ ... >IW' >IW >I0... --- >IW Counly:xuwm. xc,,wn:MR0 SulJusin: YA1F1 05 .-- BB ... ... > >I0... ... a1W ... ... >IW ... ... >IW I'I'NA Spcl.l W ... ... >I00 ... -. 7QInI010 IW((ld:.Ylg Tarr 1'nrr .-. ... Per' link. Power-12tipaldc I'cnn clu Jinn 5%(Grah) 011 ..- -.. Pass ... ._ re99 Pass ... ... rtl99 .-- ... Pn99 NC0WS0tltllWt Ocgin:6lll'ls Pml.ercy:QP/F d Aler Lan S<P lke NOnComp:SinSle B. -- "- Pa.a - ... Pan ... .-- Para cnamy:xan.dmJ x<sn:AxQ snmba9in: nkwz e•. °6 --- ._. ra99 -- ran ... ra99 ... '-- raa9 ... ... ra99 Special I7'Q1'aI0 .tl3 gy ,. ... -.. ... B7 IW((l)YS] 0 00 IIu4e 1'nwer Dan Illver I'I!x A1:<'hr LIM O.XX'g�l(;rnhl dJ .. >I00 >I• ... ... >I0o' ..- .- m >0' NI IXNllJ6tl/W2 ncgin:Nll'77 PmpvrcY:Q A Mae Sep lke A N—Can'": oa --- >IW _ ... _ NI --- >1W >I00 -- -- >I00 O..ly:xnckiagh. Ncsion:WSx(1 Suhlusin: kOAOJ OS -- 96 _. ._ >1W >1W Pit: 1.8 Spcci.l --- 71103140 IW (l)BM79 Y P.c I'MJ One AY.ilulda 1EGI NO: 1 1*""—.ry= Mcnilodng hvrlun.ey: Q Q".anody;M-Montldy: nM flinnmMy:SA-.Snnianoually:d_Annually:NWD-Only whe. di9ehaepint 1) x. .an, IS. (1m�lu. I n.e ll<.ryi� mem ing i ul"a ed"n'Italy 'iNhl= Perini. xuuirenwnl I.Irr= AJnu lislea.ive c"c'-'rage. 7QI0= low @iw nimnon kfd d=V.—Ildy Law.im.ing In. m:n<. 6, nh.'n( Iilk or NO Mnn.h9.h:n eaingLa 1 >, Ian, Ap., Jul. oN Na mp'=Cnnunll-Let n<+;n=Pin. nunilL mn.i.cJ I'/1'=P...IPml ea Alainly AIi4-nI.xcwl a tatuein>avem I'1,. 1•.....inad It— IM111N IWla..loa.cnm w.a<n.nn�nun{.m 'Y" i...Lit i..p.!.nv ntnid'h.nun: 1'III-C1n..ui. ealim:P- M..nuhl Cannot hilel.µunro6.lrw...;d-1'ed.nnwJ p, ¢. by NWQ A...'nit, _ .np,; I'm Gnup: nl-OuA.erl Ln uu.nlL i upu um. I. Ulll'.il;u.nm. it nl..l Na..N.aau•m:.- 1 vnlw+.l Minnaw:•.Ln 1;1... in, Nine, L; - P.I....... uvlat—1: Nit - Nu.Ilo cJ:l l Ilglii. inN .'f Vu..ILL B., Day A, lay Surma I- lw., a c, N . Newly I..Iu.D IIiu omnvan: lI . Avn.. Lnl rvn A;a L.nry I PAnn<.Lei. ewiLd�le. WIIOLLIEFI-Ll1EN'I'IOXICITY'I'ESTING 01SELP-1,I0NI'l0kING SUMMARY IWed.Muy LI. 1997 I'ACll ITV or", nRI:MPv'1' Dnycn CnrP. Penn chr munip 23% 93 NCt1000729IW1 ❑egin:12/IN)6 Pmrymcy:Q l'T A rcb May Aug Nnv NnnCnnp. Da -- --- --- -.- CountyAlaywrnd Region: ARO SNINsm FR005 95 --- Pass ... ... Pass --- -- Fail less -- Pass '�C> `� IT 1.1 Special 06 ... Pass --- -- Pass -. ._ Pass --- --- Pass 2 7Q10: 5.6 IWC(%):23.0 Order: 97 -- Pass --- Dell. Anne - - P2yena ohr l lln: I PF, 93 In is 42 18 Ifi In -- --- Pass --- NC00061901W1 Begin:9/I/95 Ftequcncy:Q Mar lull Srp llz NouCtuall) ONAug 94 -- --- Lain 7.8 31,16 31 --- - 15.6 ... --. 309 Counly:Gauwlm Region: MRO Subb"m C11,35 95 -. --- 31.1 ... --- 31 ..- 31.1 -- -- 31 IT: 1.0 S,a itl 96 --- ._ 31 --- ... 31 ... --- . >aa --- ._ HR01 7Q10: 12 IWC(%J'. 11 ONer: 97 ... --- 16 ❑-fur 3V1VTP PERM CHR I'm 9o% 93 -- Fast Pass --- Fail NfLFull Fail Fad Pass --- pas Pass NCW26689/WI Br,in:N1M4 rrecryrncy, Q I'll: A Ich May Aug Nov NonCnnl:SIN61.1i 94 Pass ... ... to Pass --- Pass _. --- Puss -. County: D:rvidsun Region: WSkO Suhl-in: YAMR 95 --- Fex MLFNI Pass Pass -- - Pass --- ... Fad Fail IT: 0.30 Special 96 Pass Psss --- ... Pass --= --- Pass --- ... Ful Fax 7Q10: 0.0 IWC(%): 100 Oos"': 97 Fall Pass --- Dme Y.'n" Inr. PERAf CIIRI.IM:913%((freb) 03 --- --- ... ... ._ _. --- ... --- --- --. NCW8376WW1 flegin:811/94 hmcluen,:Q P/F A Ian Apr lul(ki N,NCu,up:SINGLE 94 --- --- ... _. ._ ... C aty:Slnnle, Itr,inn: MR0 Subh-m: YAIW7 95 FBi Nt01 NMI Pess - -_ I.ma lam NP/Pass INI.. Pas, --- IT:9072 S'urul fla NI (nIc P.- 1'n,s --. ._ NIsA us Pxee - Pang 7QI0:0 IWC(%)'.IW ON,,: 97 P,ss --- --- Duke I'uwer Ic-Nningrled, Center/001 P— 241. ldfac lien: 90% Ondu 93 --- --- --- .-. --- --- ... NCW26255/WI. Bepu:b/IN)5 Fnqucu,y: Q IV A Irh May Aug Nov Nnn(:nmp: SINGIli N --- Fail _. _. Pass -- ... Fad -- Cnnnty:Mecklenburg kaginn;NIRO Subbasin: C l'D32 95 -- Pas, -- --- Pass --- -. Pess --- Pars -- PF:0.02 SMNtl 96 ... Pass --- _. Pass -- Pass to --- ... --- - 7Q10:80.0 IWC(%):003 Onla, 97 -- II -. Duke 1'nwer-Alln, 002 Penn do li,n: Ib%Wr:d,) 93 Pass ... --- Pass ... _. Pass Pass --- --- N0000J9797W2 Begin:IWIM6 Ptnluuwy: Q 1'n; A Jun At, sus 0, Nnn( .nmP; Single 94 Pass --- --- Parr .-- -.- Pass _. .-. pass --- --- Counly:03s1on R,wu: NIRO Subbasin: Cl 03t 05 Pesa Nl -- Pass Pass --- Pass --- --. PF: 11.6 S'-) 96 Pass --- Pass -- --- Pass --- Pass ... ... 7QI0: 95.0 IN'Cf%): 16 Omcn 97 Fal Fail Pass Duke Power-Ilelews Creek/003 PERMCIfRLIM: 337,((;RADI 93 -- Pass --- -- Pase -- -- Pass -- -� Pass ... N0W2aa06/O(J3 Begin:3/I/93 r"aracy.Q IV A Pcb M.ry An, Nnv N-Cnnlp:SINUJI On --- Par, -- ... Pass - ... Pas Pass County:8lokcs Region: WSRO Subbasin: ROAM 95 -. Pass -- ... Pass Pass NNPass - PI':].7 Slmcial 96 - Pass -- --- Pass --- ... Pass ... ..., Pass ]QI0: 24.0 IWC(%):33.0 Om°° 97 - Pass -- Duke I'owerldmk SI,a.n M AINI AC LINI: o0% )APH()It 1 1:1)FRA0s 93 -- --- >IW' -- --- >I00' -- _ >1no- _. NC. 1774W2 nc8in:9/INN Fmla,n,Y:0 A M.r ltw S,,, Dt Nuutl^Ipp; 94 --- ... >100' ... ... >I00- _. _. >100' ... _. >I00' County Row:m Regim,:MRD Subbasin: YAM 95 --- ... >M. - ... a >100 >IN PIS NA speelal 96 - ... >100 --. ... >I00 -.. ... >100 M 7010: 1030 DVCf%1:.598 Omer: 97 -.. .-. >100 Duke Power Cliffside Penn chr tin. 5%(14ab) 93 - -- Pass -- --- Pass --- -- Pass -- -_ Pass N00005081IM2 OeginWIN)5 PmryenoY: Q In; A NtarJ-Sd Dee NunCn u,Siulae 94 --- --- Pass ... --- Pass ... --- Pass ... --- Pass Counly:kml.,doul Region: ARO Subbasin: IIRINI2 05 --- ... Pass - ... Pass ... -- Pas, ... --- Pass IT 9.8 Specters 96 ... --- Pas, --. ... Pxva --. ... Pass .-. ... Pass 7QI0: 287 OVC('1)4.53 tlNer: 97 - --- Po„ Duke Power -Dan River PERNI:Chr LINI 0.88%(Grabs 93 --- -. >too' --- ... >1W' --- -. >too' ... --- >100' NCW03468=2 ❑edin 611/97 Fmgmney:Q A Mar Jun S'. Drc A Nnn('nnlP: 94 -.. --- >100- -. -.- >100' - --- >IN' --- >1n0. Caunly:Rorekioghan, Region: N'SRO Subbasin: ROA03 95 _. >I00' et _. uIW >IW --. --- IN IT: 1.8 Special 96 ... ... >IN IN --- >100 700: +no wcrx r. n.x7n nnm= 07 _. -.. >IW Duke Power-Llnroln 'turbine P2 P,Oa eh7 litr,: 23%(GAF) 93 - - N -- ._ N N00080781A01 BegiuMI/96 F;Nloney:Q Mlrt sun Sd+Due N-Cnoq,;Avg CLV 9e -- - N -- --- N --- _. N ... ... Pass County: Lincoln Regina: kIR0 SubbasiN CM33 95 -- ... Pass --- --- et --- Pass Pass --- ... Pnss PF:0A Special 96 ... --- Pass _. --- Pass 32.5 ... >92 _. ._ 6505 7Q10: 2A IWC(%)'.23 ONtr 97 --- ... >92 Y Pm IN3 Dau Available LEGEND'. PERM= len,it Rec,uircnent LIT= Adninimntive I.ucr, Target Foquen-y= Mnlionin, ficqurncy'V Qnanerly; AI-N1on161y nh1 Rinwnthly: SA- Se.uminually;A Annwdly:OWD. Only wlen Jirebvging;D-Diwinuuxt!Inonimring-,ircnrnl; IS. Condnninp ind"."I'nl study Oeein=lgnt nmmh mnuimJ ]QIB=Receiving slman, Inw now erimnnn (cfsl A=,,I ly nwnlening incm:,salonnnldyulwnfailumor NR Nfomhslballcslingn:u,tuccur- clt.J,n,Alr,lu1,De1 No Won, =('anent Cnlnpl lance Rectuimnmm PIs=Pennlud now(Nmm IWC%= lnslmaul waste concemnninn Pn+=Pawn:era I,C AC=Arnie CIM=Chronic Vam N01aDV11:I-pauuadminnow;a-CcnMalhoia Sp.;my N1ysidslt1nPChV Chonic vaster'.P-Nnwlily of s1acJ perccnlgcmbighcat conamra,ion;m-PerformedbyDWQAquatic Tos Croup:bt Badcost Rdnning Nonliom---=D,mnolmquhed:NR NmmpluoNP( rnrilily Aelivny S,uu':I Inaclive,N Newly l.ssucJ(Toconstma); I I- Active but na discbargi ng: t-More data availahle for month in queer ion ORC signnwre n-led 1] JAMESTON'N ENGINEERING GROUP, INC. L CIVIL • SANITARY • SURVEYING C117 East Main Street • P.O. Box 365 • Jamestown, N.C. 27282 r nC. Telephone (910) 886-5523 Fax (910) 896.5478 Charles 1. Jones, PE & RLS Daniel W. Pritchett, PE & RLS April 30, 1997 Re: Wastewater Treatment Facility Expansion Town of Denton NPDES Permit No. NCO026689 -. Project No. CS370519-04 JEG Job No. 95147 t -v Mr. Dave Goodrich, Supervisor NPDES Permit Group Division of Water Quality N. C. Department of EH&NR Post Office Box 29535 Raleigh, N. C. 27626-0535 Dear Mr. Goodrich: With regards to the referenced project and on behalf of the Town of Denton, we have enclosed the original and 2 copies of an NPDES Permit Application and $400.00 processing fee for upgrading of their treatment facility from 0.300 MGD to 0.800 MGD. The current NPDES permit for the 0.300 MGD facility was re -issued on July 29, 1994, , to be in effect between September 1, 1994 and August 31, 1999. As the enclosed request occurs during the existing term of the current permit, we assume limits will be established for the existing 0.300 MGD facility as well as for the completed facility at a design discharge rate of 0.800 MGD. Please be aware that the Town of Denton made an application for a Special Order By Consent on August 19, 1996 (EMC SOC 96-23). In support of this request, we have enclosed a copy of the full 201 Facilities Plan approval letter from the Construction Grants and Loans Section dated April 16, 1997. In addition, we have enclosed a copy of the Verification of Speculative Limits dated October 5, 1995 and supporting proposed discharge location maps. Currently their surface discharge is to an unnamed tributary to Lick Creek which is projected as a zero flow stream for the 7Q10, and 30Q2 events. It is anticipated that this effluent outfall will be extended to the main body of Lick Creek as part of the facility's upgrade. As indicated in your department's enclosed letter of October 5, 1995, Lick Creek has a positive flow during the 30Q2 event at this proposed discharge point. James B. Smphens, RLS M. William Tilley lames D. Tenell Mr. Dave Goodrich April 30, 1997 Page -2- In addition to the extension of the facility's effluent outfall, the approved 201 Facilities Plan provides for expansion or provision of additional aeration basin capacity (oxidation channel), clarifiers, chlorination /dechlorination facilities and tertiary filters. If any additional information is required for your evaluation of this permit for 0.800 MGD surface discharge, please call. Your early consideration of this request would be appreciated. Yours very truly, JAMESTOWN ENGINEERING GROUP, INC. aniel W. ritchett, PE & RLS DWP/cp Enclosures cc: Mr. John Everhart, Town Manager Mr. Jay Lucas, Construction Grants and Loans Mr. Cecil Madden, PE, Construction Grants and Loans Mr. Abner Braddy, Winston-Salem Regional Office Memorandum North Carolina Division of Water Quality Instream Assessment Unit To: Michelle Suverkrubbe From: Andrew McDaniel t7%1-'A Through: Carla Sanderson Ruth Sw uCj Don S, alt—O-. Date: September 25, 1996 Subject: 201 Facilities Plan Review for the Town of Denton NPDES Permit No. NC0026689 Davidson County eo�a o The lnstream Assessment Unit (IAU) has reviewed the 201 Facilities Plan for the Town of Denton's WWTP expansion. The IAU does not have any objection to the planned improvements to the facility since the upgrade should result in improved treatment of oxygen consuming wastes. However, die IAU is concerned about the long term problems the facility has experienced in passing its toxicity test. From 1992 to the present, the Denton WWTP has recorded sixteen (16) toxicity test failures. A comparison of effluent residual chlorine concentrations with toxicity test results, conducted by the IAU, did not reveal an obvious correlation between elevated chlorine concentrations and toxicity test failures. It is very important to note that this preliminary toxicity evaluation does not mean has cxl2erience. However, the data does suggest that a close examination of all potential sources of toxicity, including commercial and industrial sources, is warranted. Since the 201 Facilities Plan did not address the past toxicity problems, the IAU recommends that the Plan be amended to outline additional measures which will be taken by the Town to reduce the toxicity of its effluent. This memo reflects comments from the Instream Assessment Unit. The Permits and Engineering Unit (P&E) has been given a copy of the document for review and comments. cc: Jim Johnston (WSRO) Coy Batten, Construction Grants Colcen Sullins (P&E) Central Files 4 ft,)" 1 0.9 0.8 0.7 ZJ 0.6 0 E 0.5 0.4 0.3 0.2 0.1 0 Denton Tox Eval. (mg/L) Chart 1 Town of Denton Tox. Evaluation W 0 CD L W ►f) 0 LO NT qt M M M M M � rn M . M M 9 rn M M rn rn M m M rn ca a) ca 0 > CZ A i Cc > C U > d -- � z —' Q Q Li z Q Li ° m ca ca a) z cn ¢ -� g U- Date Nofe �W -thv ddeA Aut apt 4o It A- jppS/5�4 w;, o6Wow5 co rre% Gc�w 119,Vk�j IWe& I fr,5;�IXJ Oibl/Ae, alxt,4, 4a/ �!G �iotive�lZ, f�rev7` TZC9 Page 1 fox. �yo G/�iwLs . Pass=1/Fail=o TRC (mg/L) Avg. TRC (mg/L) IDare Co Iand[Ill 1'EkM CIIR I,IM: 90% A J ' 1 k ' 1AY N(57049140N41 Ikgna I/1R2 F 'R9tteTwY Q P/F A Feb May Aug Nov County:pre NonComp;SINGI.E 92 Bt.2' 93 NR •- ... 35.4 35.4 ... 1 0 1 S P p[-f N V 4 t Region: WARD Subbssbt:Ct1051 PP:4,16 94 Fail NR •• Pass '-- "' _.. Pass -• - Fail NR specrd T 10.0.00 RV Q q%); IOO.Oq Order. ••. 95 ... Fail H Fail Fail Fail Fail Fail Pass Lels .-. ... Fail Fail ... )are County- Revert 0fm01171001 I4rm 7AIr p/fu monit: 90%mysid 96 ... N .. -" H H ... .-. Lab H NR+I H ... NC0I170137/WI Bcgn:31kR5 I' r 'm9orTry: Q P/1 Jan Apr Jul Oct N 92 •- ... '-- ".. ... County; Dme Retian: WARD u basin: Q1053 Co 1°P 93 ... ... -.- PP; NA Spec d � ... ... ... ... I G:O lWgTbj:NA polar. 95 .. •-- ... -•• -.• Dare _ counlyvrnc s1602 Perm 74hr p/f ac monit:. 90% mysid 96 Fail Pass --• "' Pass --- ... --_ Pass '-• Pass ... ... ... ••_ 70157/ 2 NC007o157p02 Begin:SlkRS E' 11193 ��°ry' Q PM tan Apr lul Oct Counry;Dme NmCo 92 Pass 93 ... ... Late Pass '-- Pass � Bion:WARO Subhuin:CllO55 �� Pass "" •: Pass ... Pass Pp: NA Special 7QI0:0 ! 94 Fai1,Fa9 95 Pass • . Pass _ -• .". ... Pass ... --- .- Pass ... _.. ••. _. IWC(%):100.0 0'&r.. Pass ... ^• Pass ... Pass ... ... Fail Pass Dayco Corp. [.L'T CI IN TAR: 27% 96 Fail Fail Fail,Fail Fail,Failt `- Fail Pend(s) Pass �� "' Pass "' --- NCOo00329/OOl Bcgn:17117194 Frequency: Q PA A Feb May Aug Nov Coon .11a ood Nanco 92 -- ... _ .. ""' --' ... Yw Region: ARO Subbasin: F•7i11G5 ... '., -- ... PP: l .1 Spceid 94 --- '- 7Q14:5.6 IWC(%):23.o Order. 95 --- Pass -.. ... ... ... ... ... ... -.. ..._ IJrlla M1flllf P2-Tcnachrlim; 11% 96 -- Pass ... -- ��- Pass ... Pass -.- _ Fed ... Pass .•. ... Pass ... --- NC40O6190/OOI &get: g/IRS Fvoquenry: Q Mar Jun Se Dec Cwoty:Cautwba P RePM;MRO NmComp:ChV Avg 92 Fail 93 19 Fail 18 Fail, 18.2 18.2,Pass to 16 16 18 Subbasm:CfB35 PP:I.O 94 42 19 19 18 1B 42 16 1a 7QIG:12 Uyq%):ll Onkr. sOnkr. ... 95 ... ... Late 7.a 31.16 31 -"" '-' ... Pass --- 31 Denton {VWTP 96 --• ... .- 31.t ... 31 '- 31 "- •- - "- 15.6 ... 31.1 ... 30.9 PERM Cl IN LIM: go% NCM26689/001 BegM:9/lR4 F'T'gT�cO Q PIT' A Feb May Aug Nov 92 NR Fat .." pal Fat "- 31 Fail - "- 31 County: Davidrm Region: WSkO Subbasio; YADOS NmC SINq.E �� -" Fai Pass Fail Fail Pass `" PF:O.10 Speerd 94 ••. Pass �-� Fail NWFul Fail Fail -" Pass Pass 7Q10: 0.0 rWC(%):100 Gr4r. 95 ... Fad NRffail Pass NR Pass --- Pass - - •.. Fat p Pass Iola Yarnf, Inc.PERM Cl IN IAM: go% 98 Pass Pass -.- Pass -�• Pass --- Pass "- •- Pass Fail �-" Fail W.'"37631GOt Begn:gll/94 r'1eq'rTtcY• Q P/F 4 Jan Apr Jul Oct Couoty:Stsnley NonCo SIN tap: GLB 92 --- 93 ... --- - - --- � Region: MR0 Snbbaain: YAD07 --. .. -. ._. -.. PP: 0072 5preial 94 ." .._ ... ... 7QIO: 0 IWq%): E00 Older. 95 Fail NR," NRM Pass ... ... ... ... -.. --- Duke IJuke Poxer Tralningffcth Centcr70pl Pram ?Ahr p/faclim;90%ario NR Late Pass Pass ... --- ... ._. Late Late NWPass Late Pass .-- ... NC407L235/00! !k . 6 Counry:MccUmbur �: 11R5 Fir -ncy. Q PR A Feb May Aug Nov Region: NmComp:S[Ncd.,E 92 --- 93 '-- -- -• --- --- R MRO Subbase: CfB32 :0.420 "" ... "-"- _ -- Specid Q10:84.0 IWQ%):0.03 older. _-- .. 95 •-- Pass -- Fail . - '- Pass ..' --' ... •-- Duke Poxrr•ARen 002 PERM CI IN LIM: 16% (GRAB) 96 ... Pass •-- "' --- Pass - - Pass .. "' Pass ... -• •-- Fad Pass -_. 9/o02 Begn:1/1R5 Fnq"ncY- Q PIP A Jan Apr Jul Oct N County: Omeu tJ'° Ikgion: MRD NonC omp:SINq.E 92 Pass 93 Pass -- "- Pass """ -•: Pass Subbaan: CJB34 PP:11.6 Special B4 Pass "- --- Pass _ __ Pass "' -"" •-- Pass ... ... 7Q10:93.0 IVIC(`•b)•16 Order • 95 Pass ... ."" Pass --- -- Pass -'- `- Pass .." Duke Power-Rclexf Cree k1003 96 Pass NR Pass -- Pass Pass - "' --- Pass ••- Pass ... PERM CI Ik LIM: 33% (GRAB) Begn:3/IR3 1'm9"cTrY- Q PIP A 92 •-- Pass _ -' .•• __ Feb May Aug Nov TO�sRegion: WSRO Subbuin: ROA01 NonCornp:SINgB 93 .__ Pass°�'' .--Pass"" "'Pass Pass --Pass 7-- Special I 94 '- Pass ... --- Pass Q10:7q.0 11V((%):33.0 Or)cr. 95 .- Pass --_ "' ._. Pass ... ._. Pass Pass ... Duke power-Belewf Creeklp05 96 '- Pass -•- ••- --- Pass ""_ --- Pass "- "-" •-- Pass -"" PERM 2411R P/F AC LIM: 90% Begs: S/1/93 NCQy; 92 --- Pass NWPase _. Siek0o3 Pioques--T Q A Feb May Aug Nov County; 5taku Region: WSRO Subbuin: ROA01 Non Comp,SINq.E 93 N .._ N N "-- --- --- PP: Special 94 •-' N N N N H N N N ... 7010: LAKE D4q%);NA Order. 95 .» N N ._. --- N N wwecntla tallurea . ■iprlFxant yecy : Rc 1992 Data Available 98 -•- H N __ N -- 1.P013Np; PERM . Peende Rsgairement LET . A�rtiabtr+rtiw setter -Target Acme . Ftnt mmlh raouimd 7Q10 . Raceiv' Fraquemy = 1°Il stream low now criterion (cfs) A = PP = Porrrtiued Dow (MGD) Monitoring frequency: Q. Quarwd ; M- MattMr. BM- Binsaidd ; SA- Semiatetaally; IWC% . r� gqausnerly monitoring increases to monthly upon single tailuse Dcu Natftlm: f - Fatlead Mirtmw: • . [rear wute PIP= ;raw Ce- as chronic test A- Annually; OW D- Ody when diachar Mouths slut testing moat Bm6; Q Discontinued rrlonitaring .: my - Mvsid I�PorT�6 Moueiorc -- = Data erne requied: NR - Na NR -lNot ore.: my - Mysid ahrimtr. C" - Chronic value: P - Morality of stated AC - Acute occur - ex. lAN APR- CI' NonCorrgr = Current Tequlterrtent; IS- Compliance Require..,N'dy ConductingbadePatdern teporled; ( ) -Beginning of Quarter eercemate at ld at cat ; at - Performed by OEM Tax Eval Paciliry, Activity Status: 1- Inactive, N - Newly la Group: bt - Had lest y WATo co°stnrct); Had t 17 H - Active but not dischar • BtTrB: t-Mom data available for momh in question = ORC sigrutwe needed .3 ® North Carolina Wildlife Resources Commission 0 512 N. Salisbury Street, Raleigh, North Carolina 27604-1188, 919-733-3391 Charles R. Fullwood, Executive Director November 13, 1995 Daniel W. Pritchett, PE & RLS wORWI Jamestown Engineering Group Inc PO Box 365 Q 3 - 0 ,•/� Jamestown NC 27282 UT SUBJECT: Scoping for Wastewater Treatment Plant Expansion, Town of Denton, Davidson County, NC Dear Mr. Pritchett: We appreciate the opportunity to respond to your scoping request and regret that our response has been delayed. Projects that we receive through the State Clearinghouse are given priority. Therefore, to prevent such delays on future projects, we recommend you submit requests directly to Ms. Chris Baggett, State Clearinghouse, 116 West Jones ST, Raleigh NC 27603. Of course, feel free to contact our office concerning any such project or to provide us with a copy of the scoping request. We would recommend that you submit this scoping request to the State Clearinghouse so that other interested state agencies can provide comments. This letter responds to your request, on behalf of the Town of Denton, for information regarding expected impacts on fish and wildlife resources resulting from an expansion of wastewater treatment plant capacity from 0.3 mgd to 0.6 mgd. Our comments are provided in accordance with provisions of Section 201 of the Clean Water Act, the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.0 661-667d), and the North Carolina Environmental Policy Act (G.S. 113A-1 through 113A-10; 1 NCAC 25). Our greatest concern from this project is the adverse impacts that doubling the effluent will have on the water quality and aquatic organisms downstream in Lick Creek. We are especially concerned about toxicity to aquatic organisms from chlorine and refractory toxic substances. The speculative limits will require that effluent be relatively high quality. Therefore, to protect the aquatic resources in the vicinity of the discharge and downstream, we recommend that ultraviolet light be used as a disinfection method instead of chlorination. Elimination of chlorine also has a benefit of removing a potentially lethal toxic substance from the work place. Ultraviolet disinfection equipment should be provided with an emergency power supply. If ultraviolet is not feasible due to clarity of effluent, we request that waste treatment plants be S oping Denton W WTP November 13, 1995 equipped with dechlorination equipment and backup units. Dechlorination equipment should also be provided with emergency power supplies. The project appears limited in scope; however, the information provided is not sufficient for our staff to determine impacts to fish and wildlife resources. Due to staff limitations, this standardized response was developed for projects such as this. Although some of the information, requests, and comments may not be applicable to certain projects, these guidelines should facilitate preparation of fish and wildlife impact assessments. To provide a meaningful review of proposed project impacts on fish and wildlife . resources, we request that consultants, project sponsors, or permit applicants provide the following information in the environmental document: Include descriptions of fish and wildlife resources within the project area, and a listing of federally or state designated threatened, endangered, or special concern species. When practicable, potential borrow areas to be used for project construction should be included in the inventories. A listing of designated species can be developed through consultation with: The Natural Heritage Program, NC Division of Parks and Recreation, PO Box 27687, Raleigh NC 27611, PH: (919) 733-7795. Include descriptions of any streams or wetlands affected by the project. Include project maps identifying wetland areas. Identification of wetlands may be accomplished through coordination with the U.S. Army Corps of Engineers (COE). If the COE is not consulted, the person delineating wetlands should be identified and criteria listed. ' 4. Provide a description of project activities that will occur within wetlands, such as fill or channel alteration. Acreage of wetlands impacted by alternative project designs should be listed. Provide a description and a cover type map showing acreage of upland wildlife habitat impacted by the project. 6. Discuss the extent to which the project will result in loss, degradation, or fragmentation of wildlife habitat (wetlands and uplands). Discuss any measures proposed to avoid or reduce impacts of the project or to mitigate unavoidable habitat losses. 8. Discuss the cumulative impacts of secondary development facilitated by the proposed utilities improvements. Such discussion should weigh the economic benefits of such growth against the costs of associated environmental degradation. Include a discussion of any local ordinances or programs that mitigate these adverse impacts, such as: stormwater management, industrial pretreatment, infiltration and inflow management, water conservation programs, and stream corridor protection. 9. Include a list of document preparers which shows each individual's professional background and qualifications. Measures to avoid or minimize impacts to sensitive resources, including wetlands, should be implemented during construction. Where impacts to wetlands are unavoidable, we will Scopmg Denton W WTP November 13, 1995 recommend mitigation of the losses. In addition to providing wildlife habitat, wetland areas perform important functions of flood control and water quality protection. To avoid or minimize wetland impacts, we offer several generalized recommendations. Utility lines should be placed in or adjacent to upland areas. It is recommended that a minimum 100-foot buffer of natural vegetation be left between the edge of construction corridors and perennial streams. These buffers will help minimize impacts to water quality, stabilize stream banks, and provide travel corridors for wildlife. Trees and shrubs should be retained or established in the buffers. Buffers should also be left along intermittent drains or streams. Construction corridors should be no wider than absolutely necessary. The 401 certification for Nationwide Permit 12 stipulates that wetland construction corridors are not to exceed 40 feet and permanent maintained corridors are not to exceed 10 feet except at access points. Plant communities should be re-established which would result in wetland plant community succession into habitat of equal or greater value than that which was destroyed. Disturbed wetland areas should be returned to original soils and contours. Temporarily disturbed wetlands should be reseeded with annual small grains appropriate for the season (e.g. oats, millet, rye, wheat, annual lespedeza or rye grass) and be allowed to revert to natural wetland vegetation. Crossings of wetlands and streams should be minimized, located at narrow areas, and made perpendicular to the stream. Thank you for the opportunity to provide input in the early planning stages for this project. If we can be of further assistance, please contact our office at (919) 528-9886. Sincerely, Owen F. Anderson Piedmont Region Coordinator cc: Tom Augspurger, Supervising Biologist, US Fish and Wildlife Service Melba McGee, Office of Legislative and Intergovernmental Affairs Dave Goodrich, DEM, NPDES /4' inc. JAMESTOWN ENGINEERING GROUP, INC. CIVIL • SANITARY • SURVEYING 101 Depot Street • P.O. Box 365 •.lannestown. N.C. 27282 Telephone (919) 8865523 Fax (919) 886-5478 October 17, 1995 Re: Wastewater Treatment Plant Expansion Town of Denton Davidson County, N. C. JEG File No. 95203 Mr. Don Safrit N. C. Division of Environmental Management Water Quality Technical Support Branch Post Office Box 29535 Raleigh, N. C. 27626-0535 Dear *fir. Safrit: With regards to the above referenced project, we'are currently in file initial phases of preparing an Environmental Assessment (E.A.) for the project as required for the 201 Facilities Plan, NPDES Permit, and other subsequent State approvals necessary for the facility's expansion from 0.300 million gallons per day (M.G.D.) to 0.600 M.G.D. The purpose of this letter is to obtain pertinent information from your office needed for inclusion in the E.A. during the early coordination phase of the document. The following items have been attached as background information for your review/reference: Exhibit A - Brief Project Description/Scope Exhibit B - Project Location Map Exhibit C - Proposed Effluent Outfall Location Map Exhibit D - Verification of Speculative Limits, Division of Environmental Management Exhibit E - FEMA Flood Map Panel As indicated in Exhibit I); we have obtained speculative limits from your Office. We request, on behalf of the Town of Denton, any addl.tional concerns or requirements, not outlined in the above referenced letter, if any, that may be pertinent to the preparation of the E.A./E.I.S. be addressed at this time. Charles J. Jones, PE & RLS • Daniel w. Pritchett, PE Mr. Don Safrit October 17, 1995 Page -2- Your early input into the preparation of this document is appreciated. Yours very truly, JAMESTOWN ENGINEERING GROUP, INC. 60K� Daniel W. Pritchett, PE & RLS DWP/cp Enclosures cc: Mr. John Everhart, Town Manager Mr. Cecil G. Madden, Jr., PE, Supervisor, Facilities Evaluation Unit Ms. Monica Swihart, Environmental Specialist, Water Quality Planning EXHIBIT A PROJECT DESCRIPTION/SCOPE WASTEWATER TREATMENT FACILITY UPGRADE TOWN OF DENTON DAVIDSON COUNTY, NORTH CAROLINA The Town of Denton is located in the southern portion of Davidson County, North Carolina, approximately 15 miles south of Thomasville on N. C. Highway 109. The Town's population is approximately 1,300 with a land area of 1.0 square mile. In 1983, the Town completed construction of a new 0.300 MGD Wastewater Treatment Facility, which discharges into an unnamed tributary (U.T.) to Lick Creek (NPDES Permit No. NC0026689). Due to expansions in the Town's sewer service area, and internal growth, the facility's permitted capacity limits have been reached during some months of the year. Town Officials have applied for financial assistance from the State Revolving Loan Program, and are currently tenth on the F.Y. 1996 priority rating list which will fund a proposed plant expansion to 0.600 MGD. Given that both the 7Q10 and 30Q2 flow at the existing discharge point are zero, facility expansion will require relocation of the facility's effluent outfall to a discharge location downstream. Exhibit D outlines speculative discharge limits obtained from the Division of Environmental Management (DEM). Exhibits B and C indicate the proposed location of the required effluent outfall, which will discharge directly into Lick Creek. The Lick Creek drainage area is classified as WS-IV, and located in the Pee Dee River Basin. Although this discharge location has a positive 30Q2 flow, the estimated 7Q10 low flow is zero. Exceeding one-third of the 7Q10- flow of the receiving stream has triggered the need of an Environmental Assessment PAGE 1 (E.A.), which will be included with the 201 Facility Plan. As many governmental agencies' review of the E.A. will involve concerns over the impact of construction on jurisdictional wetlands, the early review of the facility site and outfall routing by the Regional Corps of Engineers office, will be pursued. It is anticipated that the project will meet conditions of Section 404 Nationwide Permit 12, authorizing fill in waters and wetlands associated with backfill of utility lines, and the Section 401 Water Quality Certification. Preliminary assessments of criteria necessary to obtain the required permits/certificates include the following: 1. The existing Wastewater Facility site totals approximately 6.6 acres. This area is sufficient to accommodate the facility's expansion. It is located above the U.T. to Lick Creek, and is not anticipated to involve construction activities within areas designated as jurisdictional wetlands. 2. The effluent outfall route, indicated on Exhibit C, will require a maximum temporary construction corridor of 40 feet. A permanent easement of 20 feet, centered over the line, will be required for long term maintenance. The construction corridor will be located a minimum of 20 feet from the bank of the U.T. to Lick Creek, with a 40 foot buffer maintained whenever practical in an effort to isolate construction activities outside of areas anticipated to be categorized as wetlands. Up to a maximum of four (4) crossings of the U.T. to Lick Creek with the effluent outfall line are anticipated due to physical and bedrock constraints. Pending verification by applicable agencies, we anticipate these crossings to limit the area of jurisdictional wetland requiring disturbance to 0.08 acres. All excavated areas will be returned to original grades. Delineation of forested and agricultural lands will be provided in the final draft of the E.A. to be submitted for formal comments. As regulations governing this project will provide for a higher level of wastewater treatment, and discharge of treated waste to a positive flow receiving stream, a favorable review of the E.A. is anticipated. PAGE 2 :EXHIBIT D State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director October 5, 1995 Mr. John Everhart, Town Manager P. O. Box 306 Denton, NC 27239-0306 Subject: Verification of speculative limits Town of Denton NPDES Permit No. NCO026689 Davidson County Dear Mr. Everhart, `ajsk C)E=HIV F?L The Technical Support Branch has received your request for verification/updating of the speculative limits for the Town's existing discharge location as well as for the second alternate discharge point. Given that both the 7Q10 and 30Q2 flow in the existing receiving stream, iTf to Lick Creek, is zero, expansion would not be allowed at the existing location per 15A NCAC 2B .0206(d)(2). The flow for Lick Creek at the second alternate discharge location is estimated to be 7Q10=0 cfs and 30Q2= 0.09 cfs. Therefore, relocation and expansion would be allowed at this site. Based on current regulations, 15A NCAC 2B .0206(d)(1), upon expansion and relocation to the second alternate discharge site the following limits would apply: Parameter BOD5 (mg/L) N1-13-N (mg/L) D. O. (mg/L) TSS (mg/L) Fecal coliform (#/100 mL) Chlorine (ug/L) P.O. Box 29535, Raleigh, North Carolina 27626-0535 An Equal Opportunity Affirmative Action Employer Summer / Winter Limit 5/10 2/4 6/6 30/30 200 / 200 17 / 17 Telephone 919-733-5083 FAX 919-733-9919 50% recycled/ 10% post -consumer paper These limitations would be applicable to both 0.6 and 1.0 MGD. Metals limits if applicable, would be evaluated when the facility submits a formal request for a permit. Please be advised that response to this request does not guarantee that the Division will issue an NPDES permit to discharge treated wastewater into these receiving waters. It should be noted that new and expanding facilities, involving an expenditure of public funds or use of public (state) lands, will be required to prepare an environmental assessment (EA) when waste flows: 1) exceed or equal 0.5 MGD, or 2) exceed one-third of the 7Q10 flow of the receiving stream. DEM will not accept a permit application for a project requiring an EA until the document has been approved by the Department of Environment, Health and Natural Resources and a Finding of No Significant Impact (FONSI) has been sent to the state Clearinghouse for review and comment. The EA should contain a clear justification for the proposed facility and an analysis of potential alternatives which should include a thorough evaluation of non -discharge alternatives. Nondischarge alternatives or alternatives to expansion, such as spray irrigation, water conservation, inflow and infiltration reduction or connection to a regional treatment and disposal system, are considered to be environmentally preferable to a surface water discharge. In accordance with the North Carolina General Statutes, the practicable waste treatment and disposal alternative with the least adverse impact on the environment is required to be implemented. If the EA demonstrates that the project may result in a significant adverse affect on the quality of the environment, an Environmental Impact Statement would be required. Monica Swihart of the Water Quality Planning Branch can provide further information regarding the requirements of the N.C. Environmental Policy Act. If you have any questions feel free to call Andy McDaniel of my staff at (919) 733- 5083 ext. 513. Donald & Technical cc: Jamestown Engineering Group, Inc Winston-Salem Regional Office Permits and Engineering Unit Central Files ZONE C ONE A O OU tf pl.tL paINT ell 5 I Imo`. EXHIBIT E FIRM FLOOD MAP / PANEL NO. 370307-0150B rc MAY 1, 1980 u E it - 3 i I U TOWN OF DENTON (AREA NOT INCLUDED) _ Cy ova o WASTEWPTert. ��/ m� � I L I / i � GRIST MOUNTAIN DENTON fill "v J �� QUADRANGLE MAP __QUADRANGLE EXHIBIT MAP / 1 ` r A.K.A. DENTON N.W. ` 1 _ QUADRANGLE MAP f .j �I' wee c.g1.N.i:il (I, � } I• � it i.�� rl�, I �y,� �, I((f •�1 ( ,� - �� \ /�� I I I r I � Lug/ 11 �- I- 7n AQ ._ � I<e; 63, I. TY�"-Yc�a II et. ,0 y�, 11 •)r, '•p 1 / L 1 ] I II V [Doi )- ILL ` `;•- � `II entai ilk .!:lo (I• �� ., � � ��-.�-� _ir � �>� �� =� / �� •� li` e� �I is 1 [ �l� ,� r . EFFLUENT OUTFALL DISCHARGE POINT �� .,, \ rt ._..��z _ �Jj � (1 o0 _ �695 aelcjP�'1, "cl I(i7� 1�! �I WASTEWATER,'I TREATMENT�� !T So(fo/� I PLANT r 1 f II ew)l� • J JJJ r 1 � 1; , •; , Ir�' l%l�„�;- „-�` , Paz � � ,� I 1` \r j. HIGH ROCK _ HANDY II_ _ n 11 QUADRANGLE QUADRANGLE (L(O MAP MAP ) 1 EXHIBIT C PROPOSED EFFLUENT OUTFALL TOWN OF DENTON DAVIDSON COUNTY, NORTH CAROLINA PROPOSED EFFLUENT j OUTFALL DISCHARGE POINT SpR�NGs HIGH ROCK RI). 0 u1 N / Vl / 1 WASTEWATER 1 TREATMENT \ PLANT SITE ry h r� Q 800' 400' 0 800' 1600' 2 �O SCALE: I" = 800' 95152\EwiieIT. DM State of North Carolina Department of Environment, Health and Natural Resources 1 • Division of Water Quality _ 4 James B. Hunt, Jr., Governor®� �� • Jonathan B. Howes, Secretary p E H N R A. Preston Howard, Jr., P.E., Director April 16, 1997 Mr. John Everhart, Town Manager Town of Denton Post Office Box 306 Denton, North Carolina 27239-0306 SUBJECT: Full Facilities Plan Approval Town of Denton 201 Facilities Plan Project No. CS370519-04 Dear Mr. Everhart: The subject amendment to the Town of Denton 201 Facilities Plan has been reviewed by the Division of Water Quality and has been found to comply with the requirements set forth in 40 CFR Part 35. Therefore, the subject plan is hereby given full approval. If you have any questions, please contact Mr. Jay Lucas of our staff at (919) 715-6225. Sincerely, �l R. Blowe, P.E., Chief RMS/kc cc: Jamestown Engineering Group - Winston -Salem Regional Office PMB DMU FEU SRF Construction Grants & Loans Section �I�I �� FAX 919-715-6229 P.O. Box 29579, Raleigh, North Carolina 27626-0579 l , V� �f An Equal Opportunity/Affirmative Action Employer Voice 919-733-6900 50% recycles/10% post -consumer paper EXHIBIT C PROPOSED EFFLUENT OUTFALL TOWN OF DENTON DAVIDSON COUNTY, NORTH CAROLIINA N PROPOSED EFFLUENT OUTFACE DISCHARGE POIN T pENto� / Pip ��j RiNGS HIGH ROCK RD. a . po\ LICK v 0 N K vi 800' 400' 0 800' 1600' SCALE: 1" = 800' 95152\EXHI8IT.DWG S� WASTEWATER TREATMENT PLANT SITE T n(I Alm 03-07-aP> GUWT� 0 r Y A n,? /TA- ///w"7 0 G.S ZY.00 XL I GRIST MouNrA N QtJ1Ab04w-qLG MA MAiK Ir j�• ��g.�'%� l�'" 1 �1,.. ..�� .. I.- 1, ,I\3 TY1-- �_I I' WS 6 � - �I � ' /fir/�J~�•��J � �)� �. � �— I � \�O() -�%( J� �r - 1` I' ii!III (\C � �SI. T)Y;11�;'�'� �` °. 1 1'1\1 /f O �. ��` ^+� °J b' � •�.� � _,!'", tl f /O� •t r�� `.1N /� llli_ �lf� /- ),I r � ' l /` � 11 � �\ • � I� �. �� ' / 1� I �� 1� of 1 T I G ElI Tralle I Park . (il�%�I� f �./1 •� ry �,- �� 1 i „P 6J1.�- "011 �'' is ( �;,{%" /L( /\ a' ' 'J Ir ,}�r;fll�✓ `'ter tile( t _ r :I I — 1 eni0rl \,Z, % 41 '1 � —' 0111 �li • L' / � �./ v i " [ ::� eso �---�„w _•[J.•� r-' �' (IrAv)� 1 r 1 ./ j • �I l �.' 69 ):" I I u Ql�,1.1 IN Il O d, r F. e6 • SIC-�N eC�� UAD�n�'.�,�E i OAP MAP JAMESTOWN ENGINEERING GROUP, INC. CIVIL • SANITARY • SURVEYING /4, 101 Depot Street • P.O. Box 365 • Jatnestim n. N.C. 27282 inc. Telephone(919) 886-5523 Fax (919)886-5J78 August 23, 1995 Re: Wastewater Treatment Plant Improvements Town of Denton Davidson County NPDES Permit No. N00026689 JEG Fi.l.e Nos. 92023i92006 Ms. Ruth Swanek Permits and Engineering Unit Division of Environmental Management And Natura). Resources Post: Office Box_ 2953.°, R.aiei.ch, N. C. 1175:1:6--0 35 D?ar fds . S�eane}c. P7it: regards tc the :e°_erenced facility, we requested on May 26, 149"?, Fp-�:c; lot �_ve wasteloads for d.l.Scharge rates of 0.600 MGD and 1.000 :.:1/ c.t two alternate discharge po.iIlts. This :.etter alld youl: res -:rose dai.ed June 11, 1.992 are attached. 9:e requ-st on behalf of the Town, reverificatlon/updating Of these 1I.mi.ts for peak month, and average daily discharge rates cf 0.600 MGD and i.000 MGD for the second alternate discharge point, as, well as the Town's existing discharge location. _oar aarly consideration of Li_is -eouest wouid be anpreciateo. If there are any o_aesti.ons, please ca?.1_.. Fours very truly, JAMESTOWN ENGINEERING a We-irazc L!WP i C p Enclosures cc: Mr. John Everhart, Town Manager Mr. Cecil Madden, P.E. GROUP, :INC. PE & P.LS Charles J. Jones. PE & RLS • Daniel W. Pritchett, PE ,JI.N'I"I'OXICI'I'Y'I'1:.1.M; 01SIi1.1:-MONI'1'OIIIM; Sl1.MMARYI 'flit,, Aug 17, 1995 N a I,nlyd fill N ilt N1 CIII! 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