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Home My WebLink AboutNC0020621_SPECULATIVE LIMITS_19911011 NPDES DOCUMENT SCANNING COVER SHEET NPDES Permit: NCO020621 Boone WWTP Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtQ Permit Modification Speculative Limits), 201 Facilities Plan Instream Assessment (6713) Environmental Assessment (EA) Permit History Document Date: October 11, 1991 This documeat is Priated oa retaise Paper-igaore say coateat oa the revere iaide � w �sl State of North Carolina Department of Environment, Health, and Natural Resources Division of Environmental Management 512 North Salisbury Street • Raleigh, North Carolina 27611 lames G.Martin,Governor October 11, 1991 George T. Everett,Ph.D. William W.Cobey,Jr.,Secretary Director Mr. Ron Huff, P.E. Hobbs, Upchurch & Associates, P .A. P.O. Box 1737 Southern Pines, N.C. 28388 Subject : Proposed Wastewater Treatment Plant Improvement Town of Boone NPDES Permit No. NCO020621 Watauga County Dear Mr. Huff: Your request for speculative effluent limits for the proposed expansion of the Boone facility has been completed by the Technical Support Branch. The specula- tive nature of this analysis must be emphasized because of its completion without review or comments from the Winston-Salem Regional Office and other Water Quality staff. Upon additional review, information could be provided that was not consid- ered during this analysis. A major factor considered in the development of speculative limits is the ongoing effort to reclassify downstream segments of the South Fork New River as Outstanding Resource Waters (ORW) . The Division of Environmental Management (DEM) is currently developing a management strategy for freshwaters with ORW classifica- tion, but finalization of the strategy has not been approved. As a discharger upstream of the proposed ORW segment, the Boone facility could be required to meet certain controls. The limits given have been influenced by the ongoing efforts to reclassify waters downstream ORW. Should decisions be made that would change these limits, the Town will be notified during the final permitting process . Based on the information available, the Technical Support Branch developed effluent limits at the proposed expansion wasteflows of 4.5, 5.0, and 5.5 MGD. The tentative limits for conventional constituents are as follows: Ow 4 .5 5.0 5.5 BOD5 21 19 17 NH3 (summer) 2 .4 2.3 2 .2 NH3 (winter) 6.0 5.6 5.2 DO nr 5 5 Fecal Coliform 200 200 200 TSS 21 20 20 pH 6-9 6-9 6-9 Polludon Pm rHlon Pays P.O.Box 27687,Raleigh,North Carolina 27611-7687 Telephone 919-733-7015 An Equal Opportunity Affirmative Action Employer It should be noted that the NH3 limits were evaluated and are based on the protection of the South Fork New River against instream toxicity. North Carolina is currently evaluating all NPDES dischargers for ammonia toxicity and following EPA guidance to protect the waters under 7Q10 conditions for an instream criteria of 1 mg/1 in the summer and 1.8 mg/l in the winter. Due to the industrial constituency in Boone's discharge, effluent limits were developed for metals at the expansion wasteflows. The recommended daily maximum limits are: Qw 4.5 MGD 5. 0 MGD _ 5.5 MGD Cadmium 5.7 ug/l 5.3 ug/l 5.1 ug/l Nickel 253 ug/1 237 ug/l 223 ug/1 Lead 72 ug/l 67 ug/1 63 ug/l Cyanide 14 ug/l 13 ug/l 13 ug/l Monthly effluent monitoring requirements should also be continued for chro- mium, copper, zinc, silver, iron, and TTO. The instream waste concentrations (IWC) at 4 .5, 5.0, and 5.5 MGD are 35%, 37%, and 39%, respectively. The chronic toxicity testing requirement with sampling in the months of March, June, Septem- ber, and December, will remain a condition of the NPDES permit. North Carolina has recently adopted an instream action level for total resid- ual chlorine (TRC) of 17 ug/l for protection against chronic toxicity to aquatic life under low flow conditions. Since the receiving stream provides adequate dilution against chronic effects, an effluent TRC limit of 28 ug/1 for protection against acute effects will be applied to the Boone facility at its expanded waste- flows. Dechlorination will be required if the process of chlorination is used for disinfection. Alternative disinfection methods are optional in order to comply with the chlorine and fecal coliform limits. It is also recommended that the upgraded Boone facility employ failsafe treat- ment designs, including stand-by power capability for the entire treatment works, dual train design for all treatment components, or equivalent failsafe treatment designs: These requirements are likely to be included in the permit since the facility is upstream of an ORW. Finally, let me remind you that final NPDES effluent limitations will be determined after the completion of your environmental assessment or impact study and a formal permit application has been submitted to the Division. If there are any additional questions concerning this matter, please feel free to contact me at (919) 733-5083. Sinc ely, In Trevor Clements, Asst. Chief a er Quality Section JTC/JMN cc: Steve Teddcrr Dale Overcash Steve Mauney Alan Clark Central Files Alan Wahab i1 � .� lJ�� 6w1q ib?Alf _ Hobbs, Upchurch & Associates,t N ; Consulting Engineers ` st, Post Office Box 1737 • Southern Pines, NC 28388 { August 15, 1991 U %1 Permits and Engineering Division Department of Environmental Management P.O. Box 29535 Raleigh, NC 27626-0535 Attn: Mr. Dale Overcash c N Re: Proposed Wastewater Treatment Plant Improvement Town of Boone NPDES No. NCO020621 HUA No. BN9113 co Dear Sir: The Town of Boone presently operates a secondary treatment plant with a permitted flow of 3.2 MGD. The plant presently discharges into the south fork of the New River in Watauga County. Due to anticipated growth of the area including Appalachian State University, it is anticipated that a larger flow allocation will be needed to meet the demands of the area. A flow of approximately 5 MGD will be required. The collection system has experienced significant inflow and infiltration in the recent past. Efforts are continually being made to reduce the I/1. We do not have a reliable quantification of the problem at this time. An expansion of this magnitude will require that an environmental document be prepared. No determination has been made as to whether an Environmental Assessment or an Environmental Impact Statement will be prepared in this case. The Town of Boone is ready to begin preparation of an environmental document at any time. The preparation of this document and the possible update of the 201 Facilities Plan presents a problem with the application for an NPDES permit. Studies to quantify I/I will be, required in the preparation of an environmental document or an update of the 201 Facilities Plan. The outcome of this investigation along with the projection of wastewater 290 S.W. Broad Street Telephone 919-692-5616 Fax 919-692-7342 p { •i ltt� if�lf2it- . D Permits and Engineering Division Department of Environmental Management Page 2 August 15, 1991 =1 3 1 flows will result in the determination of an .allowable discharge volume for the plant expansion. Since this number is not presently known, it makes it difficult to apply for a new permit. Similarly, the discharge limits which will be assigned to the discharge flow are now known. We anticipate that there may be difficulties with the preparation of the environmental document without knowledge of what the discharge limits will be. We would like to expedite the entire process from the application for the discharge permit to actual construction of the plant; therefore, we are interested in accomplishing the various tasks in the most logical order. For this reason we would like to request that technical support begin the process of establishing discharge limits as soon as possible. To this end we are enclosing a check for $400.00 to cover the NPDES permit application fee. If possible, we would like to have the stream loading run at possible discharge rates of 4.5, 5 and 5.5 MGD. This should cover the possible variance in discharge rates. We are presently preparing the Form A Municipal NPDES permit application. Please advise us on how to best handle the sections regarding flow and treatment removals. If allowable, we can make the application assuming that the discharge limits «ill not change and amend it if needed. I hope that this letter can serve as an instrument for beginning the involvement of technical support in calculating the discharge limits. If the actual permit application must be received prior to their involvement, we will make every effort to get the application in as quickly as possible. Thank you very much for your help in this matter. I would appreciate it if you would call me at your earliest convenience to discuss the contents of this letter and the zoject in general. c Sincerely, HOBBS, UPCHURCH & ASSOCIATE, P.A. Ron Huff, P.E. v RH/rjp/aug15 SPECULATIVE METALS/TOXICS LIMITS FOR BOONE WWTP FLOW SCENARIOS Qw (MGD) 4 .5 MGD 5. 0 MGD 5 . 5 MGD ------------------------------------------------------ IWC 34 . 7% 37 . 2% 39 . 4% Cadmium (ug/1) 5 . 7 5. 3 5 . 1 Chromium (ug/1) monitor monitor monitor Copper (ug/1) monitor monitor monitor Nickel (ug/1) 253 237 223 Lead (ug/1) 72 67 63 Zinc (ug/1) monitor monitor monitor Cyanide (ug/1) 14 13 13 Mercury (ug/1) (monitor) (monitor) (monitor) Silver (ug/1) monitor monitor monitor Table by Jackie Nowell September 23, 1991 09/17/91 ver 3.1 T O X I C S R E V I E W Facility: TOWN OF BOONE NPDES Permit No.: NC0020621 Status (E, P, or M): M Permitted Flow: 4.5 mgd Actual Average Flow: 2.7 mgd Subbasln: 1050701 Receiving Stream: SOUTH FORK NEW RIVERI---------PRETREATMENT DATA--------------I----EFLLUENT DATA---- I Stream Classification: C I ACTUAL PERMITTEDI I 7Q10: 13.1 cfs I Ind. + Intl. + I FREQUENCY I IWC: 34.74 i Domestic PERMITTED Domestic I OBSERVED of Chronicl Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria I Pollutant AL Cone. I Eff. Load Load Load Load Load I Cone. Violationsl - (ug/1) (ug/1) I t (t/d) (6/d) (a/d) (P/d) (6/d) I (ug/1) (ivio/Psam) 1 --------- -- -------- -------- 1 -------- -------- -------- _ -------- 1 --------- I Cadmium S 2.0 928 0.0 0.0 0.05 0.5 0.550 1 1 Chromium S 50.0 76% 0.0 0.1 0.15 0.6 0.628 1 10.0 1 I Copper AL 7.0 59% 0.8 0.1 0.87 0.6 1.368 1 31.0 1 N Nickel S 88.0 98 0.1 1.5 1.56 1.8 1.843 1 85.0 1 P Lead S 25.0 I 81% 0.4 0.1 0.47 O.B 1.243 1 100.0 1 U Zinc AL 50.0 83% 6.0 0.2 6.19 0.8 6.804 1 154.0 1 T Cyanide S 5.0 59% 0.7 0.0 0.68 0.2 0.846 1 Mercury S 0.012 86% 0.0 0.0 0.00 0.0 0.000 1 1 S Silver AL 0.06 94% 0.1 0.0 0.08 0.5 0.550 1 1 E Selenium S 5.00 08 1 C Arsenic S 50.00 O% T Phenols S NA 04 I NH3-N C Oi 1 0 T.R.Chlor.AL 17.0 08 1 N I I I I I I I I I I--------------- ALLOWABLE PRDCT'D PRDCT'D PRDCT'D ---------MONITOR/LIMIT--------- 1--A TN'L REC[MDTN'S-- I Effluent Effluent Effluent Inetream I Recomm'd - I I Cone. using using Cone. Based on Based on Based on I FREQUENCY INSTREAM I Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor. ' Pollutant I Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Recomm'd ? I (t/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data I OBSERVED (YES/NO) --------- -- --------- --------- --------- -------- -------- -------- -------- ---------I --------- -------- 1 Cadmium S 2.33 -1 5.756� 0.178 1.953 0.00 Monitor r-Limit 7 A r Chromium S 19.41 ' 143.907 1.576 6.689 3.47 Monitor Monitor (-Monitor iI NCAC NO N Copper AL I 1.59 20.147 15.868 24.893 10.77 Monitor Monitor IMonitor 1' Weekly YES I A Nickel S I 9.01 �253.276 62.803 74.435 29.53 Limit Limit /Limit] I NCAC NO I L Lead S 12.26 71.953 ) 3.938 10.482 34.74 Monitor Limit i Limit /I NCAC YES I Y Zinc AL 27.40 -143.907 3 46.726 51.336 53.51 Monitor Monitor [Monitor'] Monthly YES I S Cyanide S 1.14 I14.391 12.383 15.394 0.00 Limit I Limit / I I I Mercury S 0.01 0.035 0.000 0.000 0.00 I S Silver AL 0.09 ! 0.173 10.225 1.465 0.00 Monitor [Monitor Selenium S I 0.47 14.391 0.000 0.000 0.00 R Arsenic S 4.66 143.907 0.000 0.000 0.00 1 1 E Phenols S 0.000 0.000 0.000 0.00 I I S NH3-N C 0.000 0.00 I U T.R.Ch1or.AL 1 48.926 0.00 r Limit ) I 1 L T S 09/17/91 ver 3.1 T O K I C S R E V I E W Facility: TOWN OF BOONE NPDES Permit No.: NCO020621 Status (E, P, or M): M Permitted Flow: 5.0 Jmgd Actual Average Flow: 2.7 mgd Subbasin: 1050701 Receiving Stream: SOUTH FORK NEW RIVERI---------PRETREATMENT DATA--------------I----EFLLUENT DATA---- I Stream Classification: C I ACTUAL PERMITTEDI I 7Q10: 13.1 cfs I Intl. + Ind. + I FREQUENCY I IWC: 37.17 4 Domestic PERMITTED Domestic I OBSERVED of Chronicl .Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria I Pollutant AL Cone. I Eff. Load Load Load Load Load i Conc. Violations[ (ug/1) (ug/1) I b (#/d) (#/d) (#/d) (#/d) (#/d) I (ug/1) (#vio/#sam) l --------- -- -------- -------- 1 -------- -------- -------- -------- --------- -------- I -------- --------- I Cadmium S 2.0 92% 0.0 0.0 0.05 0.5 0.550 1 1 Chromium S 50.0 76% 0.0 0.1 0.15 0.6 0.628 1 10.0 1 1 Copper AL 7.0 59% 0.8 0.1 0.87 0.6 1.368 1 31.0 1 N Nickel. S 88.0 9% 0.1 1.5 1.56 1.8 1.843 1 85.0 1 P Lead S 25.0 81% 0.4 0.1 0.47 0.8 1.243 1 100.0 1 U Zinc AL 50.0 83% 6.0 0.2 6.19 0.8 6.804 1 154.0 1 T Cyanide S 5.0 59% 0.7 0.0 0.68 0.2 0.846 1 Mercury S 0.012 86% 0.0 0.0 0.00 0.0 0.000 1 1 S Silver AL 0.06 I 949 0.1 0.0 0.08 0.5 0.550 1 1 E Selenium S 5.00 08 C Arsenic S 50.00 OS T Phenols S NA 0% 1 I I NH3-N C 0% 1 1 0 T.R.Chlor.AL 17.0 Oi 1 N I I I I I I I I I I------------- ALLOWABLE PRDCT'D PRDCT'D PRDCT'D ---------MONITOR/LIMIT--------- 1--ADTN'L RECMMDTN'S-- I Effluent Effluent Effluent Instream I Recomm'd I Conc. using using Conc. Based on Based on Based on I FREQUENCY INSTREAM I Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor. Pollutant I Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Recomm'd ? I (#/d) (ug/1) (ug/1) (ug/l) Ng/1) Loading Loading Data I OBSERVED (YES/NO) --------- -- 1 --------- _ ----- -------- -------- -------- -------- ---------1 --------- -------_ 1 Cadmium S 2.33 l 5.381 / 0.178 1.953 0.00 Monitor [Limit / I A Chromium S 1 19.41 I'_134.516 / 1.576 6.689 3.72 Monitor Monitor (_Monitor I/ NCAC NO I N Copper AL 1 1.59 [18.832 f 15.868 24.893 11.52 Monitor Monitor 'Monitor If Weekly YES I A Nickel S 1 9.01 r236.748 62.803 74.435 31.59 Limit Limit Limit it NCAC NO I L Lead S 1 12.26 ffi7.258 / 3.938 10.482 37.17 Monitor Limit tLimit ?I NCAC YES I Y Zinc AL 1 27.40 134.516 / 46.726 51.336 57.24 Monitor Monitor Monitor 17 Monthly YES I S Cyanide S 1 1.14 f13.452 / 12.383 15.394 0.00 Limit !Limit / I Mercury S 1 0.01 0.032 0.000 0.000 0.00 I I S Silver AL 1 0.09 j 0.161 0.225 1.465 0.00 Monitor f'Monitor I I Selenium S 0.47 13.452 0.000 0.000 0.00 R Arsenic S 4.66 134.516 0.000 0.000 0.00 I I E Phenols 5 I 0.000 0.000 0.000 0.00 I 1 S NH3-N C 0.000 0.00 1 U T.R.Chlor.AL 45.735 0.00 Limit I L T i S 09/17/91 ver 3.1 T 0 X I C S R E V I E W Facility: TOWN OF BOONE NPDES Permit No.: NC0020621 Status (E, P, or M): M Permitted Flow: 5.5 �mgd Actual Average Flow: 2.7 mgd Subbasln: '050701 Receiving Stream: SOUTH FORK NEW RIVERI---------PRETREATMENT DATA--------------I----EFLLUENT DATA---- I Stream Classification: C I ACTUAL PERMITTEDI 1 7010: 13.1 cfs I Intl. ♦ Ind. + I FREQUENCY I IWC: 39.42 i Domestic PERMITTED Domestic I OBSERVED of Chronicl Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria I Pollutant AL Cone: I Eff. Load Load Load Load Load I Cone. Violationsl (ug/1) (ug/1) I i (1/cB (//d) (t/d) (t/d) (t/d) I (ug/1) (;vio/tsam) 1 --------- -- -------- -------- -------- -------- -------- -------- --------- -------- I -------- --------- I Cadmium S 2.0 92% 0.0 0.0 0.05 0.5 0.550 1 1 Chromium S 50.0 76% 0.0 0.1 0.15 0.6 0.628 1 10.0 I Copper AL 7.0 1 594 0.8 0.1 0.87 0.6 1.368 1 31.0 N Nickel S 88.0 I 9% 0.1 1.5 1.56 1.8 1.843 1 85.0 P Lead S 25.0 I 81% 0.4 0.1 0.47 0.8 1.243 1 100.0 1 U Zinc AL 50.0 1 83% 6.0 0.2 6.19 0.8 6.804 1 154.0 1 T Cyanide S 5.0 I 594 0.7 0.0 0.68 0.2 0.846 I Mercury S 0.012 1 86% 0.0 0.0 0.00 0.0 0.000 1 1 S Silver AL 0.06 I 946 0.1 0.0 0.08 0.5 0.550 1 1 E Selenium S 5.00 I 09 1 C Arsenic S 50.00 I 04 T Phenols S NA I 09 1 1 NH3-N C 1 09 1 0 T.R.Chlor.AL 17.0 I 09 1 N I I I I I I I I 1 I--------------- ALLOWABLE PRDCT'D PRDCT'D PRDCT'D ---------MONITOR/LIMIT--------- 1--ADTN'L RECMMDTN'S-- I Effluent Effluent Effluent Instream I Recomm'd I Cone, using using Cone. Based on Based on Based on I FREQUENCY INSTREAM I I Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor. i Pollutant I Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Reccmm'd 7 I (0/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data I OBSERVED (YES/NO) I --------- -- --------- -------- --------- -------- -------- -------- -------- ---------I --------- -------- 1 Cadmium S 2.33 75.073 0.178 1.953 0.00 Monitor L .Limit I A Chromium S 19.41 �` 126.833 1.576 6.689 3.94 Monitor Monitor Monitor)l NCAC NO I N Copper AL 1.59 *,17.757 15.868 24.893 12.22 Monitor Monitor Monitor I Weekly YES A Nickel S 9.01 '1223.226 �62.803 74.435 33.51 limit Limit 'Limit 11 NCAC NO 1 L Lead S 12.26 63.4161 3.938 10.462 39.42 Monitor Limit ':Limit 71 NCAC YES I Y Zinc AL 27.40 r126.833) 46.726 51.336 60.71 Monitor Monitor Monitor I/ Weekly YES S Cyanide S I 1.14 (_12.683 12.383 15.394 0.00 Limit ;Limit % I I Mercury S 0.01 0.030 0.000 0.000 0.00 1 I S Silver AL 1 0.09 0:152 0.225 1.465 0.00 Monitor `-Monitoz 7 I I Selenium S 1 0.47 12.683 0.000 0.000 0.00 1 R Arsenic S I 4.66 126.833 0.000 0.000 0.00 E Phenols S 1 0.000 0.000 0.000 0.00 I S NH3-N C 1 0.000 0.00 U T.R.Chlor.AL 1 43.123 0.00 Limit I I L I I I T I S I I I SPECULATIVE METALS LIMITS FOR BOONE WWTP (ONE HALF STND VALUE) Qw (MGD) 4 . 5 MGD 5 . 0 MGD 5. 5 MGD ------------------------------------------------------ IWC 34 . 7% 37 .2% 39 . 4% Cadmium (ug/1) 2 . 9 2 . 7 2 . 5 Chromium (ug/1) 72 67 63 Copper (ug/1) monitor monitor monitor Nickel (ug/1) 127 118 112 Lead (ug/1) 36 34 32 Zinc (ug/1) monitor monitor monitor Cyanide (ug/1) 7 . 2 6.7 6. 3 Mercury (ug/1) (monitor) (monitor) (monitor) Silver (ug/1) monitor monitor monitor Table prepared by Jackie Nowell September 26, 1991 09/26/91 ver 3.1 T O % I C S R E V I E W Facility: TOWN OF BOONE NPDES Permit No.: NC0020621 Status (E, P, or M) : M Permitted Flow: 5.0 mqd Actual Average Flow: 2.7 mgd Subbasin: '050701 Receiving Stream: SOUTH FORK NEW RIVERI---------PRETREATMENT DATA--------------I----EFLLU£NT DATA---- I Stream Classification: C HQW (0&j) I ACTUAL PERMITTED) I 7Q10: 13.1 cf. I Ind. + Ind. + I FREQUENCY I IWC: 37.17 i Domestic PERMITTED Domestic I OBSERVED of Chronicl Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria I Pollutant AL Con.. I Ell. Load Load Load Load Load I Con.: Violationsl (u9/1) (ug/1) I 8 (#/d) (#/d) (#/d) (#/d) (#/c1) I (ug/1) (#vio/team) ) --------- -- -------- -------- 1 -------- ________ ________ -------- --------- -------- I -------- _________ 1 Cadmium S 1.0 92% 0.0 0.0 0.05 0.5 0.550 1 Chromium S 25.0 76% 0.0 0.1 0.15 0.6 0.628 1 10.0 I Copper AL 3.5 598 0.8 0.1 0.87 0.6 1.368 1 31.0 1 N Nickel S 44.0 9% 0.1 1.5 1.56 1.8 1.843 1 85.0 1 P Lead S 12.5 81% 0.4 0.1 0,47 0.8 1.243 1 100.0 1 U Zinc AL 25.0 83% 6.0 0.2 6,19 0.8 6.804 1 154.0 1 T Cyanide S 2.5 598 0.7 0.0 0.68 0.2 0.846 1 Mercury 5 0.006 861 0.0 0.0 0.00 0.0 0.000 1 1 S Silver AL 0.03 94% 0.1 0.0 0,08 0.5 0.550 1 1 E Selenium 5 2.50 Ot I C Arsenic S 25.00 0% 1 T Phenols S NA 0% 1 1 NH3-N C I 0% 1 0 T.R.Chlor.AL 17.0 08 N I I I I I I ---I ALLOWABLE PRDCT'D PRDCT'D PRDCT'D ---------MONITOR/LIMIT--------- --ADTN'L REC6AIDTN'S-- I Effluent Effluent Effluent Instream I Recomm'd I Cont. using using Conc. Based on Based on Based on I FREQUENCY INSTREAM I Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor. Pollutant I Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Recomm'd ? I (#/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data I OBSERVED (YES/NO) --------- _- 1 --------- -------- --------- -------- -------- -------- --------- --------- ---__-_- l Cadmium 5 1.16 2.690 0.178 1.953 0.00 Monitor Limit I I A Chromium S 1 9.70 67.258 1.576 6.689 3.72 Monitor Monitor Limit i NCAC NO I N Copper AL 1 0.80 9.416 15.868 24.893 11.52 Monitor Monitor Monitor I Weekly YES I A Nickel 5 4.50 118.374 62.803 74.435 31.59 Limit Limit Limit I NCAC YES L Lead S I 6.13 33.629 3.93E 10.482 37.17 Limit Limit Limit I NCAC YES Y Zinc AL I 13.70 67.258 46.726 51.336 57.24 Monitor Monitor Monitor I Weekly YES I S Cyanide 5 0.57 6.726 12.383 15.394 0.00 Limit Limit I I Mercury S 0.00 0.016 0.000 0.000 0.00 1 S Silver AL 1 0.05 0.081 0.225 1.465 0.00 Monitor Monitor Selenium S 0.23 6.726 0.000 0.000 0.00 I I R Arsenic S 2.33 67.258 0.000 0.000 0.00 E Phenols S 0.000 0.000 0.000 0.00 I S NH3-N C 0.000 0.00 I I U T.R.Chlor.AL 45.735 0.00 Limit I L I T S ' 09/20/91 ver 3.1 T O % I C S R E V I E W Facility: TOWN OF BOONE NPDES Permit No.: NC0020621 Status (E, P, or M): M permitted Flow: 4.5 mgo Actual Average Flow: 2.7 mud Subbasln: 1050701 Receiving Stream: SOUTH FORK NEW RIVERI---------PRETREATMENT DATA--------------I----EFLLUENT DATA---- I Stream Classification: C HOW (0e.4j\� ACTUAL PERMITTEDI 1 7010: 13.1 cf./ Ind. + Ind. + FREQUENCY I IWC: 34.74 & Domestic PERMITTED Domestic OBSERVED of Chronicl Stn'd / Bkg Removal Domestic Act.Ind. Total Industrial Total Eflluent Criteria I Pollutant AL Cone. Eff. Load Load Load Load Load Can.. VSolationsl (ug/1) (ug/1) i (#/d) (t/d) (t/d) (}/d) (4/d) (ug/1) (ivio/fsam) I --------- -- -------- -------- I -------- -------- -------- -------- --------- -------- 1 -------- ---_--___ 1 Cadmium S 1.0 I 92% 0.0 0.0 0.05 0.5 0.550 I I Chromium S 25.0 I 76% 0.0 0.1 0.15 0.6 0.628 10.0 I 1 Copper AL 3.5 I 59% 0.8 0.1 0.87 0.6 1.368 31.0 N Nickel S 44.0 9% 0.1 1.5 1.56 1.8 1.843 1 85.0 I P Lead S 12.5 sit 0.4 0.1 0.47 0.8 1.243 1 100.0 1 U Zinc AL 25.0 I 63% 6.0 0.2 6.19 0.8 6.804 1 154.0 1 T Cyanide S 2.5 59% 0.7 0.0 0.6B 0.2 0.846 1 Mercury S 0.006 86% 0.0 0.0 0.00 0.0 0.000 1 S Silver AL 0.03 94% 0.1 0.0 0.06 0.5 0.550 E Selenium S 2.50 0% C Arsenic S 25.00 1 of T Phenols S NA 04 I NH3-N C I Oi I 1 0 T.R.Chl.r.AL 17.0 09 I N I 1 I I I 1 1 -- ALLOWABLE PRDCT'D PRDCT'D PRDCT'D ---------MONITOR/LIMIT--------- I--ADTN'L RECMMDTN'S-- 1 Effluent Effluent Effluent Instream I Recomm'd I Cont. using using Con.. Based on Based on Based on FREQUENCY INSTREAM Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED Eff. Mon. Monitor. Pollutant Load Criteria Influent Influent OBSERVED Influent Influent Effluent based on Recomm'd 7 I (t/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data OBSERVED (YES/NO) I --------- _- --------- -------- --------- -------- - -------- ---------1 --------- -------- Cadmium S 1.16 2.878 0.178 1.953 0.00 Monitor Limit I A Chromium S 9.70 71.953 1.576 6.689 3.47 Monitor Monitor Limit I NCAC NO N Copper AL 0.80 10.073 15.868 24.893 10.77 Monitor Monitor Monitor I Weekly YES A Nickel 5 4.50 126.638 62.803 74.435 29.53 Limit Limit Limit I NCAC YES L Lead S 6.13 35.977 3.938 10.482 34.74 Limit Limit Limit NCAC YES Y Zinc AL I 13.70 71.953 46.726 51.336 53.51 Monitor Monitor Monitor Weekly YES S Cyanide S 0.57 7.195 12.383 15.394 0.00 Limit Limit I Mercury 5 I 0.00 0.017 0.000 0.000 0.00 S Silver AL I 0.05 0.086 0.225 1.465 0.00 Monitor Monitor I Selenium S 0.23 7.195 0.000 0.000 0.00 R Arsenic S 2.33 71.953 0.000 0.000 0.00 I E Phenols S 0.000 0.000 0.000 0.00 S NH3-N C 0.000 0.00 I U T.R.Chl.r.AL 48.928 0.00 Limit I I L T I S '0972W91 ver 3.1 T O X I C S R E V I E W Facility: TOWN OF BOONE NPDES Permit No.: NC0020621 Status (E, P, or M): M Permitted Flow: 5.5 mgd Actual Average Flow: 2.7 mgd Subbasin: 1050701 Receiving Stream: SOUTH FORK NEW RIVERI---------PRETREATMENT DATA--------------I----EFLLUENT DATA---- I Stream Classification: C HQW(Q2�j) ACTUAL PERMITTEDI I 7Q10: 13.1 cfs Ind. + Intl. + I FREQUENCY I IWC: 39.42 i Domestic PERMITTED Domestic I OBSERVED of Chronic) Stn'd / Bkg Removal Domestic Act.Ind. Total Industrial Total Effluent Criteria I Pollutant AL Conc. Eff. Load Load Load Load Load Conc. Violationsl (ug/1) (ug/1) i (f/d) (f/d) (f/d) (P/d) (f/d) I (ug/1) (ivio/tsam) I --------- -- -------- -------- -------- -------- -------- -------- --------- -------- 1 -------- --------- Cadmium S 1.0 92% 0.0 0.0 0.05 0.5 0.550 I Chromium S 25.0 76% 0.0 0.1 0.15 0.6 0.628 10.0 I Copper AL 3.5 59% 0.8 0.1 0.87 0.6 1.368 I 31.0 N Nickel S 44.0 9% 0.1 1.5 1.56 1.8 1.843 I 85.0 P Lead S 12.5 I 81% 0.4 0.1 0.47 0.8 1.243 I 100.0 U Zinc AL 25.0 1 83% 6.0 0.2 6.19 0.8 6.804 1 154.0 T Cyanide S 2.5 1 59% 0.7 0.0 0.68 0.2 0.846 Mercury S 0.006 1 86% 0.0 0.0 0.00 0.0 0.000 I S Silver AL 0.03 1 94% 0.1 0.0 0.08 0.5 0.550 I E Selenium S 2.50 0% 1 C Arsenic S 25.00 08 T Phenols S NA I 08 I 1 1 NH3-N C Ot 1 0 T.R.Chlor.AL 17.0 1 04 N I I I I I I I I I 1--------------- ALLOWABLE PROCT'0 PRDCT'D PRDCT'D ---------MONITOR/LIMIT--------- 1--ADTN'L RECMMDTN'S-- I I Effluent Effluent Effluent Instream I Recomm'd I Conc. using using Conc. Based on Based on Based on I FREQUENCY INSTREAM I I Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor. I Pollutant Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Recomm'd ? I I Wd) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data OBSERVED (YES/NO) I --------- -- I --------- -------- --------- -------- -------- -------- -------- ---------I --------- -------- I Cadmium S I 1.16 2.537 0.178 1.953 0.00 Monitor Limit I A Chromium S 9.70 63.416 1.576 6.689 3.94 Monitor Limit Limit NCAC NO N Copper AL 0.80 8.878 15.868 24.893 12.22 Monitor Monitor Monitor Weekly YES A Nickel S 1 4.50 111.613 62.803 74.435 33.51 Limit Limit Limit NCAC YES L Lead S 6.13 31.708 3.938 10.482 39.42 Limit Limit Limit NCAC YES Y Zinc AL 13.70 63.416 46.726 51.336 60.71 Monitor Monitor Monitor Weekly YES S Cyanide S 0.57 6.342 12.383 15.394 0.00 Limit Limit I I Mercury S 0.00 0.015 0.000 0.000 0.00 S Silver AL 0.05 0.076 0.225 1.465 0.00 Monitor Monitor Selenium S 0.23 6.342 0.000 0.000 0.00 1 R Arsenic S I 2.33 63.416 0.000 0.000 0.00 E Phenols S 0.000 0.000 0.000 0.00 I S NH3-N C 0.000 0.00 I U T.R.Chlor.AL 43.123 0.00 Limit I L T S . NPDFS PRETREATMENT INFORMATION REQUEST FORM U FACILITY NAME: Both NPDES NO. NCOO a D 1 :REQUESTER: - CIemPM�S DATE: / /24i5ia RECICN: ftp- ) PERMIT CONDITIONS COVERING PRMRFATMFN'T This facility has no SIUs and should not have pretreatment language. This facility should and/or is developing a pretreatment program. ; Please include the following conditions: Prcxyram Developrent Phase I due i. Phase II due • . . Additional Conditions ; (attached) This facility is currently implementing a pretreatment program. Please include the following conditions: _ Program Implementation i _ . . Additional Conditions (attached) SICNZFICANT INDUSTRIAL USE ZS' (SIUs) C ONIRIAVTIONS SIU FJXa - 0TAL: ' J03 _ K - CYK3CY ITICN: TEXTILE: MGDi /�MFTAL FINISHING':an�R- . 6a3 MGD 0_rp� I 1/er n�nnA QyN O I'm •rp, MGD i Ul ILL J11 rn Ish�S rr� ® �'0• IMEIIXJORKS REVIEW MA PARAMETER :6Ass TMltoubrT -Z,Y D IN LRS/DAY - : i 8�'y iALIDVMLE DaMESTIC PERMITTED AcTGLAL vat i Cd -Dy Sltl �� RWt mOv� 0' Cr •� �� Cu '0q . 588 • 109 ��z - S88 092 ' Ni .02 1.163 Pb . 435 Zn .40 .893 .obi CN G.o2 ESN •t�3 3— Phenol •65 .196 CID 59 _ i other AG RECEIVED: /_/ REVIEWED BY: F .� .. REIiJRNID: WHOLE EFFLU$- IXICITY TESTING 0[SF1.F-MONITORING SUMMARY] 'lhu,Aug 15, 1991 ' ' FACILITY RCOUIRGMENT YEAR JAN MR MAR APR MAY JUN All AUG SFP OCI' NOV OTC BESSEMER CITY WWTP PERMIT CylRONICUMIT:69% V '87 - - bt - PASS PASS - FAIL - NR - - NPDESe:NC0020876 B&iw I/1/88 fi qunvy.Q P/F '88 (PAIL) FALL - FAIL (-) PALL -- - PASS -- County:GASTON Rcgim:MRO M-N:FEB MAY AUG NOV '89 - FAR. - - FAM - - PAIL - -- FAR, - PF:IS SOCAOC ReF '90- FAR. - - FAIL - LATE TAB. PASS PASS PASS PASS 7QIO:1.07 IWC(%):68A9 SOG29091-I1/30191-CHROMC MONHILY MONrrORINO A VI PASS PASS FAIT. PASS PASS PASS BLADENBORO WWTP LETTER CHRONIC TARGET:99% '87 - - - - - NR NR PASS NK PASS NK PASS NPDFSB:NOD026352 Bcgin5/1/88 Pmq t.r Q PIP '88 NR PASS (NR) PASS PASS - - NR PASS - PASS - County:➢IADFN Rcglw:FRO M.du:MAY AUG NOV MR '89 - PASS - PASS - - PAIL - PASS NR - PF:0.50 SOCJIOC Rcq: '90- PASS - - NR - - PASS - - PASS - ' 7QIa Q00 IWC(%):IC0.00 yl - PASS - - PASS - ➢LOWNOROCKWWTP PERMITCHRONICLIM17:61% '87 NPDESB:NC0D277S6 Bcgi=4/l91 F q lwy.Q PIP d '88 - - - - - - _ NONE 49.2 21.6 P25• 1130 Cowry:WATAUGA Rcgim:WSRO M.ou:JAN APR JUL OCT '89 NONE 10.0 NONE, NONE NONE - NONE - -- NR NONE FAIL PP:Q80 SOC/JOC Req: '90 PASS - - PASS - - bl - _ PASS - - 7Q10:B80 BVC(%):60J8 yl NR - _ PASS - - PASS I BOONS VAM PERMIPC)BgONICLIMIT:ZJ% '87 - - -- - - - - '(PASS) - PASS (-) - IWDESI:NCBa%d21 • Be&Im8/I187 ' Faq.c ..QP/P ,'88 NR (FAIL) - - (PASS) - - (-) PASS - - FAIL Cowry:WATAUGA Rcgim:WSRO ! mmi u:SEP DEC MAR JUN '89 PASS - PASS - - PASS - - bt PASS NR PP:0.2 v SOC/JOC Rcq: J .90 FAIL PASS bt - PASS - PASS Al, ,7Q10:13.1 / 1WC(%):Z/.42 yI PASS - PASS - PASS ' BOONVWBWW(P PERMIT MR LWlITO67%,81%®0.2 MOD '87 NPOEe:NC0020951 Be&I l/,/88 Fmgmrcy.Q PIP Cmunry:YADKIN Rcgim:WSRO MmOu:JAN APR JUL OCT PF:0.10 SOG10C Pcq: '90- - - FAIT. - TAB. FAIL - _ PASS - - 7Q10:0.075 1WC(%):67.0 JOC 9Yl90.NO TOX RED yI PASS - - PASS - - BRFNIWOODRESTHOhtE PERMIT CMtONIC LNIT:99%(GRAB) '87 NPDPSB:NC0 58009 Beein:8/190 RRgvs Q P/F A '88 Comity:FRANKLIN Rcgim:RRO M.ou:JAN APR JUL OCT '89 PP:0.006 SOC/JOC Rcq: '90 - - NT FAIL FAIL 7Q10:0.0 IWC(%):100 91 NR - - NR BREVARD WWI? PERMn'Cl-RONIC LIMIT:24%. '87 - ._ _. _ _ _ - ._ ._ _. ... ,NONE, NPDESM:NCO060 34 m1h 10/l90 Faqucuy.Q P/P '98 NONE 11.5 NONE NONE NONE NONE NR PASS - PASS - ... Counry:7EANSYLVANIA Regim:ARO MvNu:JULOCTJANAPR -89 PASS ._ _. PASS - - PASS --- ... PASS PF:250 SOCOOC IUq: '90 PASS - FAR. PASS - PASS PASS ... - 7Q10:161.0 IWC(%):2.40 gI PASS - ... PASS - - PASS BREWER-HENDLEY OIL CO. PERMITI'CHRONIC LIMIT:99%(GRAB) '87 NPDESg:N00076849 B.&in:12/1/89 Hc9m'rY Q PIP A '88 County:UNION Rcgim:MRO M.O :FEB MAY AUG NOV 199 N PF:.01008 SOCJJOC Rrq: '90 7Q10:0.0 IWC(%):100.0 BROADWAYWWTP LETTER ACUIUTARGE'I':481 IR CERIO OR DN'I W1A 'tl] NPDES8:NC0059U2 Begi.I Imo R{cgwriy:M '88 Couiy:IZE Rcgim:RRO MmJu: '89 PP:0.16 SOC/JOC Req: '90 NONE• 21.7• 7Q10:0.05 1WC(%):85 VI 8.28' NR NONE' NONE• 1ATC NONE• BRYSONCRYWWTP PERMIT ACUEUMIT:25% •g7 NPDFSN:NCDOW57 Bc&iu 61190 Ticq-c ..Q PM A 188 Cowwy:SWAIN Rcgim:ARO MmJu:JAN APR JUL OCT '89 PP:0.60 SOQJOC Rcq: 190 - NONE- - - NR NONE, - 7Q10:365.00 BVC(%):0.258 '91 PASS - PASS NONE - - 0 2 rmcaJve(aduua a aigmifirm omcaopliana Y Pa1987 dam available ` LEGEND: PP4Rrmimd pow(MOD).7Q10=Reaivinfaocam low Dow ai.d.(cra),IWC%•Wm.m wuu cmawatim,➢cg'uW'inlmmN mquiad,PaqucmygMmiloring ragmMy):IQ-Quancd)7 M Ma ,,,BM-BMm l,,SA Semivnually,A Anmdly: OWD-0Ny wleo d'uQmginB:D-DLcmJnued vnNurml requimmnt;IS.Cmduuine IndcpoMent audyl.P/P.Yuy1'a0 clvmr wa.aay,ArcAcuu,ChrAwnic,dyuarudy mmiiuring lmreaca to momldy upm amglc fa0un, (Dua Na,timl:Ir.PItM.A Mimow,•.Crriodaphvu m-M,idduimp,QVeOmomicvalor,P`d ily o63..,_a Pcm patbi&Fcat rsrcmatim,atWurormcdby OEM AgTm Gm,,b Bad wR. (RryaJof Nou6mJ:I--�Dau vu mqui d.NR�llu apavd.().Bcivmin&o[Quutvl.(Pacdiry Auivity Suaa1:Ilehuctiw.N+Newly Baucd(1'o corumucQ.tlMuiw but nn d'urlurfiNl 5 BOONE WWTP AMMONIA ANALYSIS 7Q10 : 13 . 1000 cfs NH3 Effl . Conc: 13 . 0000 mg/l AL (1/1 . 8 mg/1) : 1000 . 00 ug/l Upstream NH3 Conc. : 220 . 00_00 _ug/l Design Flow: C4 . 5000 MGD Predicted NH3 Downstream: 4660 . 37 ug/l 4 . 660373 mg/l NH3 Limit : 2464 . 946 ug/l [2 .A64946 mg/1 AMMONIA ANALYSIS (WINTER) 7Q10 : 18 . 6000 cfs NH3 Effl. Conc: 13 . 0000 mg/l AL (1/1 . 8 mg/1) : 1800 . 00 ug/1 Upstream NH3 Conc. : 220 . 0000 ug/l Design Flow: 1-4 . 5000)MGD Predicted NH3 Downstream: 3705 . 45 ug/l 3 . 705454 mg/l NH3 Limit : 6013 . 333 ug/l ("6. 0.13333Img/l BOONE WWTP AMMONIA ANALYSIS 7Q10 : 13 . 1000 cfs NH3 Effl . Conc: 13 . 0000 mg/l AL (1/1 . 8 mg/1) : 1000 . 00 ug/l Upstream NH3 Conc. : 220_0000 ug/l Design Flow: F 5 . 0000 MGD Predicted NH3 Downstream: 4970 . 36 ug/l 4 . 970359 mg/l NH3 Limit : 2318 . 451 ug/l C72 . 318,451 mg/�l AMMONIA ANALYSIS (WINTER) 7Q10 : 18 . 6000 cfs NH3 Effl . Conc: 13 . 0000 mg/l AL (1/1 . 8 mg/1) : 1800 . 00 ug/l Upstream NH3 Conc. : 220 . 0000 ug/l Design Flow: r -5 . 0000 MGD Predicted NH3 Downstream: 3978 . 82 ug/l 3 . 978823 mg/l NH3 Limit : 5592 ug/l !__5 .592—mg/17 BOONE WWTP AMMONIA ANALYSIS 7Q10 : 13 . 1000 cfs NH3 Effl . Conc: 13 . 0000 mg/1 AL (1/1 . 8 mg/1) : 1000 . 00 ug/l Upstream NH3 Conc. : 220 . 0000 ug/l Design Flow: 5 .5000 MGD Predicted NH3 Downstream: 5258 . 13 ug/1 5 . 258127 mg/1 NH3 Limit : 2198.7592 ug/1 12 . 198592 mg/1 AMMONIA ANALYSIS (WINTER) 7Q10 : 18 . 6000 cfs NH3 Effl . Conc: 13 . 0000 mg/l AL (1/1 . 8 mg/1) : 1800 . 00 ug/l Upstream NH3 Conc. : 220 . 0000 ug/l Design Flow: 5 .5000 MGD Predicted NH3 Downstream: 4236 .57 ug/l 4 . 236571 mg/l NH3 Limit : 5247 . 272 ug/l e,5 . 247272 mg/1 -r4 O'Sb7o, '� fey •+".*ate '7" """°a[rtZ. �W3 - -% __ A-S�� 0 30130 ., t - 30 �� 8 3¢ *` 3. z.y6-v O 00,G /ie 3 S*c-.v I 1 II i i A� LWl,/ � �_-____—_ 3/17 oil ----- - - _ 9 ... - --- — 2,3 gC 77 h ---- - ¢ i i V - ----- -- -------- -- - - - - - ------ - -- S,d MGd - a -PC.,, ; 146d O — >.2 le �s 2 le -- -- -----� -- - -- - - - - --- ------ --- ----- -- - - -ova Zf ;I -- -- - -- - -- -- - - - - - - ,� ; i � 2 • Laub : ,2�, 9 I. i' I w7 /6 = /P.6 c7j £sf, w7 ,�)s l`13, 6• c� -.2A / c4 --- — - EJ74. 36yZ_� - - - -- - - sue- - --- - - -- - -- - ----- - — — — I- C-4j'L--- Z -- -- —3a gz4Lc ld = 4. 938 �M!I- o. 30 14 41 -- - -- b awlion Locations. South Fork of the New River and New River Outstanding Resource Waters Investigation. Watauga Ashe and Alleghany Counties North Carolina. _ March 1990. (Stations 1 and 2 are mainstem locations, all other locations are tributaries) i s Vw U u l .k � 'zz J jE 1/ n _ x t 7 ? c sue. / ♦ s N SEE T. � o �� , , l r 9 a r. n� nco 'o^d � i Q° ° N'uK7'H 0,0 C B en C. e 8 t ° h� gull°a wPell, l o Cr .� °PS = n _ /0 P CI (I!\lj of l �F l BO OOB SOU pine I A C' 9 I I J I) rn ) II V PARKWAY W nkler FORA ,� ddle F MIIEES LD 00aw%� 1 05 07 of �_�� 0 5 EXISTING WHOLE WATERSHED ORW MANAGEMENT STRATEGY FOR FRESHWATERS * Stormwater controls are required for new development requiring a Sediment/Erosion Control Plan within the entire upstream watershed as follows : Low Density Option : Developments which limit single family developments to one acre lots and other type developments to 12 percent built-upon area . High Density Option: Higher density developments will be allowed if stormwater control systems utilizing wet detention ponds are utilized. . * No new or expanded wastewater discharges are allowed. PROPOSED DOWNSTREAM (NOT WHOLE WATERSHED) ORW MANAGEMENT STRATEGY FOR FRESHWATERS * Stormwater controls are required as described above except that they apply only to areas within one mile and draining to the designated ORW segment . * No new or expanded wastewater discharges are allowed directly to the ORW segment . * All new or expanded wastewater discharges up*ream of the designated ORW will meet the following. It should be noted that these requirements are similar to the HQW discharge requirements . Expansions -> no increase in loading , r` Expansions to existing discharges upstream of the designated ORW will be allowed if there is no increase in permitted pollutant loading; (additional restrictions on existing discharges may be applied as future water quality evaluations indicate that it is necessary) . New Discharges -> BOD = 5 mg/l; NH3 = 2 mg/l All new wastewater discharges upstream of the designated ORW will have NPDES permit limits of 5 mg/l and 2 mg/1 for BOD and ammonia, respectively . New or Expanded Discharges -> reliability measures required All new and expanded wastewater discharges will employ failsafe treatment designs, including stand-by power capability for entire treatment works, dual train design for all treatment components, or equivalent failsafe treatment designs . New or Expanded Discharges -> ensure maintenance of specific water quality standards in the ORW segment (a) 50% volume limit for treated wastewater the total volume of treated wastewater for all upstream discharges combined will not exceed 50 percent of the total instream flow in the designated ORW under 7Q10 conditions; (b) a safety factor of 2 for specific toxics a safety factor will be applied to any toxic chemical allocation such that the effluent limitation for a specific chemical constituent will meet an instream concentration of one-half the normal standard at design conditions in the ORW segment; (c) a_safety factor of 2 for whole effluent toxicity a safety factor will be applied to any discharge of complex wastewater (those containing or potentially containing toxicants) such that the whole effluent toxicity limitation will be allocated to protect for chronic toxicity at an effluent concentration equal to twice that which is acceptable under design conditions in the ORW segment; V' r M:wqcorwmg.ho 1 AUG 2 6 1991 State of North Carolina is ;t "` Department of Natural Resources and Community Development t + �riT BRANCH Division of Environmental Managemen ; 512 North Salisbury Street • Raleigh, North Caro ina 27611 James G. Martin, Governor George T. Everett. Ph. D. William W. Cobey,Jr., Secretary Director August 26, 1991 Mr. Ron Huff, PE Hobbs, Upchurch & Associates, P.A. PO Box 1737 Southern Pines, NC 28388 Subject: NPDES Permit No. NCO020621 Boone WWTP Watauga County Dear Mr. Huff: On August 1, 1989, rules became effective that require the submittal of an EA or EIS for new or expanding facilities, being built with public monies, in excess of 0.500 MGD or when the instream wastewater flow is in excess of 33% of the stream flow under 7C10 conditions. The Town of Boone has requested a flow expansion of 1.3 to 2.3 MGD. Therefore. an EA or EIS must be submitted to meet the requirements of the new regulations. The Division of Environmental Management is returning your application. The application may be resubmitted when the EA or EIS is approved. You should contact Mr. Alan Clark to discuss the requirements of the EA/EIS process. A copy of your letter has been forwarded to Mr. Trevor Clements of the Technical Support Branch. His staff will begin a review to determine the speculative limits that may apply to the discharge. The results of the Technical Support Branch's review will be beneficial in developing an EIS/EA. If you have any questions, please contact Mr. Clark, Mr. Clements, or me at the number listed below. Sincerely, M. Dale Overcast Supervisor, NPDES Permits cc: Mr. Larry Coble Mr. Alan Clark 'Mr. Trevor Clements Pollution Prevention Pays 11.0. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 An Equal Opportunity Affirmati�e Action Employer North Carolina Division of Environmental Management Water Quality Section/[ntensive Survey Group August 2, 1991 MEMORANDUM To: Ruth Swanek Through: Jay Saubery From: Howard Bryant /dam Subject: Long-term BOD Analysis for Boone WWTP (100%) County: Watauga NPDES #NC0020621 Receiving Stream: South Fork New River Sub-basin: 50701 DAY lBOD NH3-N TKN-N NOX-N TN-N 0 7.50 9.8 4.10 13.9 5 21 .1 7.40 9.2 4.70 13.9 10 52.1 0.01 1 .5 12.00 14.0 15 65.3. 0.03 1 .5 14.00 16.0 20 69.8 0.05 1 .3 14.00 15.0 25 73.1 0.04 2.7 13.00 16.0 30 75.6 0.02 1 .1 13.00 14.0 35 77.6 40 79.5 50 82.2 60 83.8 0.01 1 .0 15.00 16.0 70 85.0 80 85.9 90 86.6 100 87.2 110 87.6 Date Collected: April 17, 1991 Collected by: J. Johnston Test evaluation: excellent 0 9 3 0- 1 0 3 0 pH:7.4 Seeded: seeded cc: Central Files Regional Water Quality Supervisor SPECULATIVE METALS LIMITS FOR BOONE WWTP (ONE HALF STND VALUE) Ca 7P10 C Qw (MGD) 4 .5 MGD 5 . 0 MGD 5 .5 MGD ------------------------------------------------------ IWC 5 . 63% 6 . 22% 6. 80% Cadmium (ug/1) 18 16 15 Chromium (ug/1) monitor monitor monitor Copper (ug/1) monitor monitor monitor Nickel (ug/1) 781 708 647 Lead (ug/1) 221 201 184 Zinc (ug/1) monitor monitor monitor Cyanide (ug/1) 44 40 37 Silver (ug/1) monitor monitor monitor Table prepared by Jackie Nowell September 26, 1991 MEMO DATE: TO: ��Lh e SUBJECT: L�rLt -,�)Q-culahue "E +wLed hD (5uzanne d xha , abc ue- ORW . � F �c,ve h80A 4-cr) Pic Ioadinc5. AIDO -r`DoSj�&OK)CODI pow q- dual fra,ns l-a pvoFecf ORO. From: n+SiARo z 99 North Carolina Department of Environment ��: . : � Health, and Natural Resources eq p wo plea 09/30/91 ver 3.1 T O X I C S R E V I E W Facility: TOWN OF BOONE NPDES Permit No.: NC0020621 Status (E, P, or M): M Permitted Flow: 4.5 mgo Actual Average Flow: 2.7 mqd Subbasln: '050701 Receiving Stream: SOUTH FORK NEW RIVERI---------PRETREATMENT DATA--------------I----EFLLUENT DATA---- I Stream Classification: C HOW I ACTUAL PERMITTEDI I 7Q10: 116.9 cfs Ind. + Ind. + I FREQUENCY I TWC: 5.63 i Domestic PERMITTED Domestic I OBSERVED of Chronicl Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Effluent Criteria I Pollutant AL Conc. I Eff. Load Load Load Load Load I Conc. Violationsl (ug/1) (ug/1) I i (#/d) (#/d) (#/d) (#/d) (#/d) I (ug/1) (#vio/#sam) I --------- -- -------- -------- 1 -------- -------- -------- -------- --------- -------- I -------- Cadmium S 1.0 92% 0.0 0.0 0.05 0.5 0.550 1 Chromium S 25.0 76% 0.0 0.1 0.15 0.6 0.628 1 10.0 1 1 Copper AL 3.5 59% 0.0 0.1 0.87 0.6 1.368 1 31.0 1 N Nickel S 44.0 9% 0.1 1.5 1.56 1.8 1.843 1 85.0 1 P Lead S 12.5 81% 0.4 0.1 0.47 0.8 1.243 1 100.0 1 U Zinc AL 25.0 I 83% 6.0 0.2 6.19 O.B 6.804 1 154.0 1 T Cyanide S 2.5 I 59% 0.7 0.0 0.68 0.2 0.846 1 Mercury S 0.006 86% 0.0 0.0 0.00 0.0 0.000 1 1 S Silver AL 0.03 I 94% 0.1 0.0 0.08 0.5 0.550 1 1 E Selenium S 2.50 I 0% I 1 C Arsenic S 25.00 09 1 T Phenols S NA 0% I NH3-N C 09 1 0 T.R.Ch1ar.AL 17.0 04 N I I I I I I 1 I I 1 --- ALLOWABLE PRDCT'D PRDCT'D PRDCT'D ---------MONITOR/LIMIT--------- 1--ADTN'L RECMMDTN'S-- I Effluent Effluent Effluent Instream Recomm'd I Conc. using using Conc. Based on Based on Based on FREQUENCY INSTREAM I Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor. I Pollutant I Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Recomm'd ? I I (#/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data I OBSERVED (YES/NO) --------- -- 1 --------- -------- --------- -------- -------- -------- -------- ---------I --------- -------- 1 Cadmium S 8.16 17.760 0.178 1.953 0.00 Limit I A Chromium S 1 67.99 443.996 1.576 6.689 0.56 Monitor Monitor I NCAC NO I N Copper AL 1 5.57 62.159 15.868 24.893 1.75 Monitor Monitor Monitor I Monthly NO I A Nickel S 1 31.56 781.434 62.803 74.435 4.79 Monitor Monitor Limit I NCAC NO I L Lead S 1 42.94 221.998 3.938 10.482 5.63 Monitor Monitor Limit I NCAC NO Y Zinc AL 1 95.99 443.996 46.726 51.336 8.67 Monitor Monitor Monitor I Monthly NO S Cyanide S I 3.9B 44.400 12.383 15.394 0.00 Limit Limit I Mercury S 1 0.03 0.107 0.000 0.000 0.00 S Silver AL 1 0.33 0.533 0.225 1.465 0.00 Monitor Monitor Selenium S I 1.63 44.400 0.000 0.000 0.00 I 1 R Arsenic S 1 16.32 443.996 0.000 0.000 0.00 1 E Phenols S 1 0.000 0.000 0.000 0.00 1 S NH3-N C 1 0.000 0.00 I 1 U T.R.Chlor.AL 1 301.918 0.00 Limit I I L I I I T I I I B l BD4T,�4;3044C Z. SUMMER MODEL @ 4 . 5 MGD W/ SAME LOAD- ING AS EXISTING LIMIT ---------- MODEL RESULTS ---------- Discharger : TOWN OF BOONE WWTP Receiving Stream : SOUTH FORK NEW RIVER --------------- ------------------------------------------ The End D .O. is 1YO`mg/l . The End CBOD is ng/1 . l. jo The End NBOD is . 89'mg/l . 0,7-9 ---------------------------------------------------------------------- WLA WLA WLA DO Min CBOD NBOD DO Waste Flow (mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd) ------ --------- ------- ---- ---- -- ---------- Segment 1 5 . 04 0 . 00 1 Reach 1 35 . 70 10 . 80 0 . 00 4 .50000 Reach 2 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 3 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 4 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 5 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 6 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 7 0 . 00 0 . 00 0 . 00 0 . 00000 *** MODEL SUMMARY DATA *** Discharger : TOWN OF BOONE WWTP Subbasin 050701 Receiving Stream : SOUTH FORK NEW RIVER Stream Class : C Summer 7Q10 : 13. 1 Winter 7Q10 : 18 . 6 Design Temperature : 23. 0 ILENGTHI SLOPEI VELOCITY I DEPTHI Kd I Kd I Ka I Ka I KN I I mile I ft/mil fps I ft Idesignl @20;f Idesignl @20;6 Idesignl -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 0 . 401 7 . 001 0 . 451 1 1 . 73 1 0 . 00 1 0 . 25 164592758127099985900 . Reach 1 I 1 I I 1 1 I I 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1 . 701 7 . 001 0 . 468 1 1 . 76 1 0 . 00 1 0 .25 10 . 00 I 4 . 26I6402572 Reach 2 1 1 1 I I I 1 1 I 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 0 . 201 7 . 001 0 . 473 11 . 78 1 -1 . 88775756610535916E+0300 10 .25 1 Reach 3 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 I 1 . 401 7 . 001 0 . 478 11 . 80 10 . 00 1 0 .25 1 -0 . 00 1 4 . 351 -0 . 00 1 Reach 4 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1 . 401 7 . 00I 0 . 482 1 1 . 81 1 0 . 00 1 0 .25 1 -1 . 14541228754104744E Reach 5 1 1 I 1 1 1 I I I 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1 . 101 7 . 001 0 .559 1 1 . 98 1 3 . 27377950019372215E+0205 1 0 . 25 1 Reach 6 1 1 1 1 I 1 1 I 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 62 . 001 7 . 001 0 . 691 1 2 . 35 1 0 . 00 1 0 . 25 1 3 . 24719539210885353E Reach 7 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I Flow I CBOD I NBOD I D.O. I I cfs I mg/l I mg/l I mg/l I Segment 1 Reach 1 Waste 1 6 . 975 1 35 . 700 1 10 . 800 1 0 . 000 Headwaters ) 13 . 100 1 2 . 000 I 1 . 000 1 7 .720 Tributary 1 0 . 000 1 0 . 000 I 0 . 000 1 7 . 720 * Runoff 1 0 . 250 1 2 . 000 I 1 . 000 I 7 . 720 Segment 1 Reach 2 Waste I 0 . 000 1 0 . 000 I 0 . 000 1 0 . 000 Tributary 1 1 . 450 1 2 . 000 1 0 . 000 I 7 . 720 * Runoff 1 0 . 240 1 2 . 000 1 1 . 000 1 7 . 720 Segment 1 Reach 3 Waste 0 . 000 1 0 . 000 1 0 . 000 1 0 . 000 Tributary 1 0 . 440 I 2 . 000 1 . 000 1 7 . 720 * Runoff I 0 . 000 I 2 . 000 I 1 . 000 1 7 . 720 Segment 1 Reach 4 Waste I 0 . 000 I 0 . 000 1 0 . 000 1 0 . 000 Tributary I 0 . 500 ( 2 . 000 I 1 . 000 I 7 . 720 * Runoff I 0 . 240 2 . 000 I 1 . 000 I 7 . 720 Segment 1 Reach 5 Waste I 0 . 000 I 0 . 000 I 0 . 000 I 0 . 000 Tributary I 0 . 300 2 . 000 I 1 . 000 1 7 . 720 * Runoff I 0 . 240 1 2 . 000 I 1 . 000 I 7 . 720 Segment 1 Reach 6 Waste I 0 . 000 I 0 . 000 0 . 000 0 . 000 Tributary 8 . 900 I 2 . 000 I 1 . 000 7 . 720 * Runoff 1 0 .240 I 2 . 000 1 1 . 000 1 7 . 720 Segment 1 Reach 7 Waste I 0 . 000 I 0 . 000 I 0 . 000 1 0 . 000 Tributary 115 . 000 I 2 . 000 I 1 . 000 1 7 . 720 * Runoff I 0 . 290 2 . 000 I 1 . 000 I 7 . 720 * Runoff flow is in cfs/mile SUMMER MODEL @ 4 .5 MGD W1 SAME LOAD- ING AS EXISTING LIMIT Seg # Reach # I Seg Mi I D .O. CBOD I NBOD I Flow I 1 1 0 . 00 5 . 04 13 . 71 4 . 40 20 . 07 1 1 0 . 10 5 . 17 13 . 64 4 . 38 20 . 10 1 1 0 . 20 5 . 30 13 . 57 4 . 35 20 . 12 1 1 0 . 30 5 . 42 13 . 51 4 . 33 20 . 15 1 1 0 . 40 5 .53 13 . 44 4 . 30 20 . 17 1 2 0 . 40 5 . 68 12 . 67 4 . 01 21 . 62 1 2 0 . 50 5 . 78 12 . 62 3 . 99 21 . 65 1 2 0 . 60 5 . 88 12 .56 3 . 96 21 . 67 1 2 0 . 70 5 . 97 12 . 50 3 . 94 21 .70 1 2 0 . 80 6 . 06 12 . 44 3 . 92 21 . 72 1 2 0 . 90 6 . 15 12 . 38 3 . 90 21 . 74 1 2 1 . 00 6. 22 12 . 32 3 . 87 21 . 77 1 2 1 . 10 6. 30 12 .27 3 . 85 21 . 79 1 2 1 . 20 6. 37 12 .21 3 . 83 21 . 82 1 2 1 . 30 6. 43 12 . 15 3 . 81 21 . 84 1 2 1 . 40 6. 50 12 . 10 3 . 79 21 . 87 1 2 1 . 50 6. 56 12 . 04 3 . 76 21 . 89 1 2 1 . 60 6. 61 11 . 99 3 . 74 21 . 91 1 2 1 . 70 6. 67 11 . 93 3 . 72 21 . 94 1 2 1 . 80 6. 72 11 . 87 3 . 70 21 . 96 1 2 1 . 90 6. 76 11 . 82 3 . 68 21 . 99 1 2 2 . 00 6 . 81 11 .76 3 . 66 22 . 01 1 2 2 . 10 6 . 85 11 . 71 3 . 64 22 . 03 1 3 2 . 10 6 . 87 11 .52 3 . 59 22 . 47 1 3 2 .20 6. 91 11 . 48 3 . 57 22 . 47 1 3 2 . 30 6. 95 11 . 44 3. 55 22 . 47 1 4 2 . 30 6. 97 11 .23 3 . 50 22 . 97 1 4 2 . 50 7 . 04 11 . 13 3 . 46 23 . 02 1 4 2 . 70 7 . 11 11 . 03 3 . 42 23 . 07 1 4 2 . 90 7 . 16 10 . 93 3 . 38 23 . 12 1 4 3 . 10 7 . 22 10 . 83 3 . 34 23 . 17 1 4 3 . 30 7 . 27 10 . 74 3 . 31 23 . 21 1 4 3 .50 7 . 31 10 . 64 3 . 27 23 . 26 1 4 3 . 70 7 . 35 10 .54 3 . 23 23 . 31 1 5 3 . 70 7 . 36 10 .44 3 .21 23 . 61 1 5 3 . 90 7 . 39 10 . 34 3 . 17 23 . 66 1 5 4 . 10 7 . 43 10 .25 3 . 14 23 . 70 1 5 4 . 30 7 . 46 10 . 16 3 . 10 23 . 75 1 5 4 . 50 7 . 49 10 . 07 3 . 07 23 . 80 1 5 4 . 70 7 . 52 9 . 98 3 . 03 23 . 85 1 5 4 . 90 7 . 54 9 . 89 3 . 00 23 . 90 1 5 5 . 10 7 . 56 9 . 81 2 . 97 23 . 94 1 6 5 . 10 7 . 61 7 . 69 2 . 44 32 . 84 1 6 5 . 20 7 . 61 7 . 66 2 . 42 32 . 87 1 6 5 . 30 7 . 61 7 . 63 2 . 41 32 . 89 1 6 5 . 40 7 . 62 7 . 61 2 . 40 32 . 92 1 6 5 . 50 7 . 62 7 . 58 2 . 39 32 . 94 1 6 5 . 60 7 . 63 7 .55 2 . 38 32 . 96 1 6 5 . 70 7 . 63 7 .52 2 . 37 32 . 99 1 6 5 . 80 7 . 64 7 . 49 2 . 36 33 . 01 1 6 5. 90 7 . 64 7 . 47 2 . 35 33 . 04 1 6 6. 00 7 . 65 7 . 44 2 . 34 33 . 06 1 6 6. 10 7 . 65 7 . 41 2 . 33 33 . 08 1 6 6 .20 7 . 66 7 . 38 2 . 32 33 . 11 1 7 6. 20 7 . 68 5 .71 1 . 91 48 . 11 1 7 7 .20 7 . 80 5 .54 1 . 84 48 . 40 1 7 8 . 20 7 . 90 5 . 38 1 . 77 48 : 69 1 7 9. 20 7 . 96 5 . 22 1 . 71 48 . 98 1 7 10 . 20 8 . 01 5 . 07 1 . 65 49. 27 1 7 11 . 20 8 . 05 4 . 92 1 .59 49 .56 1 7 12 .20 8 . 08 4 . 78 1 .54 49 . 85 1 7 13 . 20 8 . 10 4 . 64 1 . 48 50 . 14 1 7 14 . 20 8 . 12 4 .51 1 .43 50 . 43 1 7 15 . 20 8 . 14 4 . 38 1 . 38 50 . 72 1 7 16 . 20 8 . 15 4 . 26 1 . 33 51 . 01 1 7 17 . 20 8 . 17 4 . 13 1 .29 51 . 30 1 7 18 . 20 8 . 18 4 . 02 1 . 24 51 . 59 1 7 19 . 20 8 . 19 3 . 90 1 .20 51 . 88 1 7 20 . 20 8 . 21 3 . 79 1 . 16 52 . 17 1 7 21 . 20 8 . 22 3 . 69 1 . 12 52 . 46 1 7 22 . 20 8 . 23 3 .58 1 . 09 52 . 75 1 7 23 . 20 8 . 24 3. 48 1 . 05 53 . 04 1 7 24 . 20 8 .25 3. 39 1 . 01 53 . 33 1 7 25 . 20 8 .26 3 .29 0 . 98 53 . 62 1 7 26. 20 8 .27 3. 20 0 . 95 53 . 91 1 7 27 . 20 8 .28 3. 12 0 . 92 54 .20 1 7 28 .20 8 .28 3. 03 0 . 89 54 . 49 1 7 29.20 8 .29 2 . 95 0 . 86 54 . 78 1 7 30 .20 8 . 30 2 . 87 0 . 83 55 . 07 1 7 31 .20 8 . 31 2 .79 0 . 81 55 .36 1 7 32 .20 8 . 32 2 .71 0 . 78 55 . 65 1 7 33 .20 8 . 32 2 . 64 0 . 76 55 . 94 1 7 34 .20 8 . 33 2 . 57 0 . 73 56. 23 1 7 35 .20 8 . 34 2 . 50 0 . 71 56. 52 1 7 36.20 8 . 34 2 . 44 0 . 69 56. 81 1 7 37 .20 8 . 35 2 . 37 0 . 67 57 . 10 1 7 38 .20 8 . 36 2 . 31 0 . 65 57 . 39 1 7 39 .20 8 . 36 2 .25 0 . 63 57 . 68 1 7 40 .20 8 . 37 2 . 19 0 . 61 57 . 97 1 7 41 .20 8 . 37 2 . 13 0 .59 58 .26 1 7 42 .20 8 . 38 2 . 08 0 .57 58 .55 1 7 43 .20 8 . 38 2 . 03 0 .56 58 . 84 1 7 44 .20 8 . 39 1 . 97 0 .54 59 . 13 1 7 45 . 20 8 . 39 1 . 92 0 .52 59 . 42 1 7 46 .20 8 . 40 1 . 87 0 .51 59 . 71 1 7 47 .20 8 . 40 1 . 83 0 . 49 60 . 00 1 7 48 .20 8 . 41 1 . 78 0 . 48 60 . 29 1 7 49 .20 8 . 41 1 . 74 0 . 47 60 . 58 1 7 50 .20 8 . 42 1 . 69 0 . 45 60 . 87 1 7 51 . 20 8 . 42 1 . 65 0 . 44 61 . 16 1 7 52 . 20 8 . 42 1 . 61 0 . 43 61 . 45 1 7 53 . 20 8 . 43 1 . 57 0 . 42 61 . 74 1 7 54 . 20 8 . 43 1 . 53 0 . 41 62 . 03 1 7 55 . 20 8 . 44 1 . 50 0 . 40 62 . 32 1 7 56 . 20 8 . 44 1 . 46 0 . 39 62 . 61 1 7 57 .20 8 . 44 1 . 43 0 . 38 62 . 90 1 7 58 . 20 8 . 45 1 . 39 0 . 37 63 . 19 1 7 59 . 20 8 . 45 1 . 36 0 . 36 63 . 48 1 7 60 . 20 8 . 45 1 . 33 0 . 35 63 . 77 1 7 61 . 20 8 . 45 1 . 30 0 . 34 64 . 06 1 7 62 .20 8 . 46 1 .27 0 . 33 64 . 35 1 7 63 .20 8 . 46 1 .24 0 . 32 64 . 64 1 7 64 .20 8 . 46 1 .21 0 . 32 64 . 93 1 7 65.20 8 . 47 1 . 18 0 . 31 65 .22 1 7 66.20 8 . 47 1 . 16 0 . 30 65 .51 1 7 67 .20 8 . 47 1 . 13 0 . 29 65 . 80 1 7 68 . 20 8 . 47 1 . 10 0 .29 66 . 09 I Seg # I Reach # Seg Mi I D .O. I CBOD I NBOD I Flow I 09/30/91 ver 3.1 T O % I C S R E V I E W Facility: TOWN OF BOONE NPDES Permit No.: NCO020621 status (E, P, or M): M Permitted Flow: 5.0 mgd Actual Average Flow: 2.7 mgd Subbasin: '050701 Receiving Stream: SOUTH FORK NEW RIVERI---------PRETREATMENT DATA--------------I----EFLLUENT DATA---- I Stream Classification: C HOW I ACTUAL PERMITTEDI I 7Q10: 116.9 cis I Ind. + Ind. + I FREQUENCY I IWC: 6.22 8 I Domestic PERMITTED Domestic I OBSERVED of Chronic) Stn'd / Bkg Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria Pollutant AL Cone. Ell. Load Load Load Load Load I Conc. Violations) (ug/1) (ug/1) I % (t/d) (i/d) (f/d) (P/d) (f/d) (ug/1) (tvio/tsam) I --"'---- -- -------- -------- -------- -------- -------- -------- --------- -------- -------- --------- 1 Cadmium S 1.0 92% 0.0 0.0 0.05 0.5 0.550 Chromium S 25.0 76% 0.0 0.1 0.15 0.6 0.628 10.0 1 Copper AL 3.5 59% 0.8 0.1 0.87 0.6 1.368 31.0 N Nickel S 44.0 9% 0.1 1.5 1.56 1.0 1.843 1 85.0 P Lead S 12.5 81% 0.4 0.1 0.47 0.8 1.243 100.0 U Zinc AL 25.0 83% 6.0 0.2 6.19 O.B 6.804 154.0 T Cyanide S 2.5 59% 0.7 0.0 0.68 0.2 0.846 Mercury S 0.006 86% 0.0 0.0 0.00 0.0 0.000 S Silver AL 0.03 94% 0.1 0.0 0.08 0.5 0.550 1 E Selenium S 2.50 08 C Arsenic S 25.00 0% T Phenols S NA 09 I NH3-N C 08 1 0 T.R.Chlor.AL 17.0 Ot N I I I I I I I I I 1--------------- ALLOWABLE PRDCT'D PRDCT'D PRDCT'D ---------MONITOR/LIMIT--------- 1--ADTN'L RECMiMDTN'S-- I 1 Effluent Effluent Effluent Instream I Recomm'd I 1 Conc. using using Cone. Based on Based on Based on I FREQUENCY INSTREAM 1 Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED Eff. Mon. Monitor. Pollutant Load Criteria Influent Influent OBSERVED Influent Influent Effluent based on Recomm'd ? 1 (!/d) (ug/1) (ug/1) (ug/1) (ug/1) Leading Loading Data OBSERVED (YES/NO) --------- -- I --------- -------- --------- -------- -------- -------- -------- ---------I --------- -------- 1 Cadmium S I 8.16 16.084 0.178 1.953 0.00 Monitor Limit A Chromium S 67.99 402.097 1.576 6.689 0.62 Monitor Monitor NCAC NO I N Copper AL 5.57 56.294 15.868 24.893 1.93 Monitor Monitor Monitor I Monthly NO I A Nickel S 31.56 707.690 62.803 74.435 5.28 Monitor Limit Limit I NCAC NO L Lead S 42.94 201.048 3.938 10.482 6.22 Monitor Monitor Limit NCAC NO Y Zinc AL 95.99 402.097 46.726 51.336 9.57 Monitor Monitor Monitor Monthly NO S Cyanide S 3.98 40.210 12.383 15.394 0.00 Limit Limit I Mercury S 0.03 0.097 0.000 0.000 0.00 S Silver AL 0.33 0.483 0.225 1.465 0.00 Monitor Monitor Selenium S 1.63 40.210 0.000 0.000 0.00 R Arsenic S I 16.32 402.097 0.000 0.000 0.00 I I E Phenols S 0.000 0.000 0.000 0.00 I S NH3-N C 0.000 0.00 U T.R.Chlor.AL 273.426 0.00 Limit I L I T S SUMMER MODEL @ 5 . 0 MGD ---------- MODEL RESULTS ---------- Discharger : TOWN OF BOONE WWTP Receiving Stream : SOUTH FORK NEW RIVER ---------------------------------------------------------------------- The End D .O. is 8 . 47 mg/l . The End CBOD is 1 . 11 mg/1 . The End NBOD is 0 . 30 mg/l . ---------------------------------------------------------------------- WLA WLA WLA DO Min CBOD NBOD DO Waste Flow (mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd) ------ --------- ------- ---- ---- -- ---------- Segment 1 6 . 71 0 . 00 1 Reach 1 32 . 30 10 . 35 5 . 00 5 . 00000 Reach 2 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 3 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 4 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 5 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 6 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 7 0 . 00 0 . 00 0 . 00 0 . 00000 *** MODEL SUMMARY DATA *** Discharger : TOWN OF BOONE WWTP Subbasin 050701 Receiving Stream : SOUTH FORK NEW RIVER Stream Class : C Summer 7Q10 : 13 . 1 Winter 7Q10 : 18 . 6 Design Temperature: 23 . 0 ILENGTHI SL02EI VELOCITY I DEPTHI Kd I Kd I Ka I Ka I KN I I mile I ft/mil fps I ft Idesignl @20112 Idesignl @20Fz Idesignl -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 0 . 401 7 . 001 0 . 464 1 1 . 73 1 0 .29 1 0 .25 1 4 .50 1 4 . 221 0 . 38 1 Reach 1 1 1 I 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1 . 701 7 . 001 0 . 480 1 1 . 77 1 0 . 29 1 0 .25 14 . 67 1 4 . 371 0 . 38 1 Reach 2 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 0 . 201 7 . 001 0 . 485 1 1 . 79 10 . 29 1 0 . 25 1 4 . 71 1 4 . 411 0 . 38 1 Reach 3 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1 . 401 7 . 001 0 . 490 1 1 . 80 10 .29 1 0 .25 1 4 . 76 1 4 . 461 0 . 38 1 Reach 4 1 1 1 I 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1 . 401 7 . 001 0 . 494 1 1 . 82 1 0 .29 1 0 .25 1 4 . 80 1 4 . 501 0 . 38 1 Reach 5 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1 . 101 7 . 001 0 . 569 1 1 . 99 1 0 . 29 10 . 25 1 3 . 74 1 3 . 501 0 . 38 1 Reach 6 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 62 . 001 7 . 001 0 . 698 1 2 . 35 1 0 . 29 1 0 . 25 1 4 . 59 1 4 . 301 0 . 38 1 Reach 7 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I Flow I CBOD I NBOD I D.O. I I cfs I mg/1 I mg/l I mg/1 I Segment 1 Reach 1 Waste 1 7 . 750 1 32 . 300 1 10 . 350 I 5 . 000 Headwaters ) 13 . 100 I 2 . 000 1 1 . 000 1 7 . 720 Tributary 1 0 . 000 1 0 . 000 1 0 . 000 1 7 . 720 * Runoff 1 0 .250 1 2 . 000 1 1 . 000 7 . 720 Segment 1 Reach 2 Waste 1 0 . 000 1 0 . 000 1 0 . 000 1 0 . 000 Tributary 1 1 . 450 1 2 . 000 1 1 . 000 1 7 . 720 * Runoff 1 0 . 240 1 2 . 000 1 1 . 000 1 7 .720 Segment 1 Reach 3 Waste 1 0 . 000 1 0 . 000 1 0 . 000 1 0 . 000 Tributary 1 0 . 440 1 2 . 000 1 1 . 000 1 7 . 720 * Runoff 1 0 . 000 1 2 . 000 1 1 . 000 1 7 . 720 Segment 1 Reach 4 Waste 1 0 . 000 1 0 . 000 1 0 . 000 1 0 . 000 Tributary 1 0 . 500 1 2 . 000 1 1 . 000 1 7 . 720 * Runoff 1 0 . 240 1 2 . 000 I 1 . 000 I 7 . 720 Segment 1 Reach 5 Waste 1 0 . 000 I 0 . 000 I 0 . 000 1 0 . 000 Tributary 1 0 . 300 I 2 . 000 I 1 . 000 I 7 . 720 * Runoff 1 0 .240 1 2 . 000 1 1 . 000 1 7 . 720 Segment 1 Reach 6 Waste I 0 . 000 I 0 . 000 I 0 . 000 I 0 . 000 Tributary 1 8 . 900 1 2 . 000 1 1 . 000 1 7 . 720 * Runoff 1 0 . 240 1 2 . 000 1 1 . 000 I 7 . 720 Segment 1 Reach 7 Waste I 0 . 000 1 0 . 000 I 0 . 000 1 0 . 000 Tributary 115 . 000 2 . 000 I 1 . 000 I 7 . 720 * Runoff 1 0 . 290 I 2 . 000 I 1 . 000 I 7 . 720 * Runoff flow is in cfs/mile SUMMER MODEL @ 5 . 0 MGD Seg # I Reach # Seg Mi D .O. I CBOD NBOD I Flow I 1 1 0 . 00 6 . 71 13. 26 4 . 48 20 . 85 1 1 0 . 10 6 . 75 13 . 20 4 . 45 20 . 88 1 1 0 . 20 6 . 78 13. 14 4 . 42 20 . 90 1 1 0 . 30 6 . 82 13. 07 4 . 40 20 . 92 1 1 0 . 40 6 . 85 13 . 01 4 . 37 20 . 95 1 2 0 . 40 6 . 91 12 .30 4 . 15 22 . 40 1 2 0 .50 6 . 94 12 .24 4 . 13 22 . 42 1 2 0 . 60 6 . 98 12 . 19 4 . 11 22 . 45 1 2 0 . 70 7 . 01 12 . 13 4 . 08 22 . 47 1 2 0 . 80 7 . 04 12 . 08 4 . 06 22 .50 1 2 0 . 90 7 . 06 12 . 02 4 . 04 22 . 52 1 2 1 . 00 7 . 09 11 . 97 4 . 02 22 . 54 1 2 1 . 10 7 . 12 11 . 91 3 . 99 22 . 57 1 2 1 .20 7 . 14 11 . 86 3 . 97 22 .59 1 2 1 . 30 7 . 16 11 . 81 3 . 95 22 . 62 1 2 1 . 40 7 . 19 11 . 75 3 . 93 22 . 64 1 2 1 .50 7 . 21 11 . 70 3 . 90 22 . 66 1 2 1 . 60 7 .23 11 . 65 3 . 88 22 . 69 1 2 1 . 70 7 .25 11 .59 3 . 86 22 . 71 1 2 1 . 80 7 .26 11 .54 3 . 84 22 . 74 1 2 1 . 90 7 .28 11 . 49 3 . 82 22 . 76 1 2 2 . 00 7 . 30 11 . 44 3 . 80 22 . 78 1 2 2 . 10 7 . 32 11 . 39 3 . 78 22 . 81 1 3 2 . 10 7 . 32 11 .21 3 . 72 23 . 25 1 3 2 . 20 7 . 34 11 . 17 3 . 71 23 . 25 1 3 2 . 30 7 . 35 11 . 13 3 . 69 23 . 25 1 4 2 . 30 7 . 36 10 . 93 3 . 63 23 . 75 1 4 2 . 50 7 . 39 10 . 84 3 . 59 23 . 80 1 4 2 . 70 7 . 42 10 . 74 3 . 55 23 . 84 1 4 2 . 90 7 . 45 10 . 65 3 . 51 23 . 89 1 4 3 . 10 7 . 47 10 . 56 3 . 48 23 . 94 1 4 3 . 30 7 . 50 10 . 46 3 . 44 23 . 99 1 4 3 . 50 7 . 52 10 . 37 3 . 40 24 . 04 1 4 3 . 70 7 .54 10 . 28 3 . 37 24 . 08 1 5 3 . 70 7 .54 10 . 18 3 . 34 24 . 38 1 5 3 . 90 . 7 . 56 10 . 09 3 . 30 24 . 43 1 5 4 . 10 7 . 58 10 . 01 3 .27 24 . 48 1 5 4 . 30 7 .59 9. 92 3 .23 24 .53 1 5 4 . 50 7 . 61 9. 83 3 .20 24 . 58 1 5 4 . 70 7 . 63 9 .75 3 . 16 24 . 62 1 5 4 . 90 7 . 64 9 . 66 3 . 13 24 . 67 1 5 5 . 10 7 . 65 9 .58 3 . 10 24 . 72 1 6 5 . 10 7 . 67 7 .57 2 . 54 33 . 62 1 6 5 .20 7 . 67 7 .55 2 . 53 33 . 64 1 6 5 . 30 7 . 68 7 . 52 2 . 52 33 . 67 1 6 5 . 40 7 . 68 7 . 49 2 . 51 33 . 69 1 6 5 . 50 7 . 68 7 . 46 2 . 50 33 . 72 1 6 5 . 60 7 . 68 7 . 44 2 . 48 33 . 74 1 6 5 . 70 7 . 69 7 . 41 2 . 47 33 . 76 1 6 5. 80 7 . 69 7 . 38 2 . 46 33 . 79 1 6 5 . 90 7 . 69 7 . 36 2 . 45 33 . 81 1 6 6. 00 7 . 70 7 . 33 2 . 44 33 . 84 1 6 6. 10 7 . 70 7 . 30 2 . 43 33 . 86 1 6 6 . 20 7 . 70 7 .28 2 . 42 33 . 88 1 7 6 . 20 7 . 71 5 . 66 1 . 98 48 . 88 1 7 7 . 20 7 . 83 5 . 49 1 . 91 49 . 17 1 7 8 . 20 7 . 91 5 . 33 1 . 85 49 . 46 1 7 9. 20 7 . 97 5 . 18 1 .78 49 . 75 1 7 10 . 20 8 . 02 5 . 03 1 . 72 50 . 04 1 7 11 .20 8 . 05 4 . 89 1 . 66 50 . 33 1 7 12 . 20 8 . 08 4 . 75 1 . 60 50 . 62 1 7 13 . 20 8 . 10 4 . 61 1 .55 50 . 91 1 7 14 . 20 8 . 12 4 . 48 1 . 49 51 .20 1 7 15 . 20 8 . 14 4 . 35 1 . 44 51 . 49 1 7 16. 20 8 . 15 4 .23 1 .39 51 . 78 1 7 17 . 20 8 . 17 4 . 11 1 .34 52 . 07 1 7 18 . 20 8 . 18 4 . 00 1 . 30 52 . 36 1 7 19 . 20 8 . 19 3 . 88 1 .25 52 . 65 1 7 20 . 20 8 . 21 3 . 78 1 .21 52 . 94 1 7 21 . 20 8 . 22 3 . 67 1 . 17 53 .23 1 7 22 . 20 8 .23 3 .57 1 . 13 53 .52 1 7 23 .20 8 .24 3 . 47 1 . 10 53 . 81 1 7 24 .20 8 . 25 3 . 38 1 . 06 54 . 10 1 7 25 .20 8 . 26 3 . 28 1 . 02 54 . 39 1 7 26.20 8 . 27 3 . 19 0 . 99 54 . 68 1 7 27 .20 8 .28 3 . 11 0 . 96 54 . 97 1 7 28 .20 8 . 28 3 . 02 0 . 93 55 . 26 1 7 29 .20 8 .29 2 . 94 0 . 90 55 . 55 1 7 30 . 20 8 . 30 2 . 86 0 . 87 55 . 84 1 7 31 . 20 8 . 31 2 . 78 0 . 84 56 . 13 1 7 32 . 20 8 . 32 2 . 71 0 . 81 56 . 42 1 7 33 . 20 8 . 32 2 . 64 0 . 79 56 . 71 1 7 34 . 20 8 . 33 2 .57 0 . 76 57 . 00 1 7 35 .20 8 . 34 2 .50 0 . 74 57 .29 1 7 36.20 8 . 34 2 . 43 0 . 72 57 . 58 1 7 37 .20 8 . 35 2 . 37 0 . 70 57 . 87 1 7 38 .20 8 . 36 2 . 31 0 . 67 58 . 16 1 7 39 .20 8 . 36 2 .25 0 . 65 58 . 45 1 7 40 .20 8 . 37 2 . 19 0 . 63 58 . 74 1 7 41 .20 8 . 37 2 . 13 0 . 62 59 . 03 1 7 42 . 20 8 . 38 2 . 08 0 . 60 59 . 32 1 7 43 . 20 8 . 38 2 . 03 0 .58 59 . 61 1 7 44 . 20 8 . 39 1 . 98 0 .56 59 . 90 1 7 45 . 20 8 . 39 1 . 93 0 .55 60 . 19 1 7 46.20 8 . 40 1 . 88 0 .53 60 . 48 1 7 47 .20 8 . 40 1 . 83 0 .52 60 . 77 1 7 48 .20 8 . 41 1 . 79 0 .50 61 . 06 1 7 49.20 8 . 41 1 . 74 0 . 49 61 . 35 1 7 50 .20 8 . 42 1 . 70 0 . 47 61 . 64 1 7 51 .20 8 . 42 1 . 66 0 . 46 61 . 93 1 7 52 . 20 8 . 42 1 . 62 0 . 45 62 . 22 1 7 53 . 20 8 . 43 1 . 58 0 . 44 62 . 51 1 7 54 . 20 8 . 43 1 .54 0 . 42 62 . 80 1 7 55 . 20 8 . 43 1 .50 0 . 41 63 . 09 1 7 56 . 20 8 . 44 1 . 47 0 .40 63 . 38 1 7 57 . 20 8 . 44 1 . 43 0 . 39 63 . 67 1 7 58 .20 8 . 44 1 . 40 0 . 38 63 . 96 1 7 59.20 8 . 45 1 . 37 0 . 37 64 . 25 1 7 60 . 20 8 . 45 1 .33 0 . 36 64 .54 1 7 61 . 20 8 . 45 1 . 30 0 . 35 64 . 83 1 7 62 . 20 8 . 46 1 .27 0 . 34 65 . 12 1 7 63 . 20 8 . 46 1 .24 0 . 34 65 . 41 1 7 64 . 20 8 . 46 1 . 22 0 . 33 65 . 70 1 7 65 . 20 8 . 46 1 . 19 0 . 32 65 . 99 1 7 66.20 8 . 47 1 . 16 0 . 31 66 .28 1 7 67 .20 8 . 47 1 . 14 0 . 31 66 .57 1 7 68 .20 8 . 47 1 . 11 0 . 30 66. 86 I Seg # I Reach # Seg Mi D.O. I CBOD I NBOD I Flow I 09/30/91 ver 3.1 T 0 X I C S R E V I E W Facility: TOWN OF BOONE NPDES Permit No.: NCO020621 Status (E, P, or M): M Permitted Flow: 5.5 mgd Actual Average Flow: 2.7 mgd Subbasln: '050701 Receiving Stream: SOUTH FORK NEW RIVERI---------PRETREATMENT DATA--------------I----EFLLUENT DATA---- I Stream Classification: C HQW I ACTUAL PERMITTEDI I 7Q10: 116.9 cfs I Ind. + Ind. + I FREQUENCY I IWC: 6.80 i I Domestic PERMITTED Domestic I OBSERVED of Chronicl Stn'd / Bkg Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria Pollutant AL Conn. Eff. Load Load Load Load Load I Conn. violations) (ug/1) (ug/1) i (E/d) (f/d) (t/d) (i/d) (f/d) (ug/1) (;vlo/t sam) I --------- -- -------- -------- -------- -------- -------- -------- --------- -------- -------- --------- 1 Cadmium S 1.0 92% 0.0 0.0 0.05 0.5 0.550 Chromium S 25.0 76% 0.0 0.1 0.15 0.6 0.628 10.0 I Copper AL 3.5 59% 0.8 0.1 0.87 0.6 1.368 31.0 N Nickel S 44.0 94 0.1 1.5 1.56 1.8 1.843 85.0 P Lead S 12.5 81% 0.4 0.1 0.47 0.8 1.243 I 100.0 U Zinc AL 25.0 83% 6.0 0.2 6.19 0.8 6.804 I 154.0 I T Cyanide S 2.5 59% 0.7 0.0 0.68 0.2 0.846 I Mercury S 0.006 86% 0.0 0.0 0.00 0.0 0.000 I S Silver AL 0.03 94% 0.1 0.0 0.08 0.5 0.550 I I E Selenium S 2.50 08 I C Arsenic S 25.00 09 I T Phenols S NA Oi I I NH3-N C OF I 1 0 T.R.Chlor.AL 17.0 08 N I I I I I I I I I 1--------------- ALLOWABLE PRDCT'D PRDCT'D PRDCT'D ---------MONITOR/LIMIT--------- 1--ADTN'L RECMMDTN'S-- I Effluent Effluent Effluent Instream I Recomm'd 1 Conn. using using Conn. Based on Based on Based on I FREQUENCY INSTREAM Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED Eff. Mon. Monitor. Pollutant I Load Criteria Influent Influent OBSERVED Influent Influent Effluent based on Recomm'd ? 1 (f/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading ❑ata OBSERVED (YES/NO) --------- -- --------- -------- --------- -------- -------- -------- -------- ---------I --------- -------- Cadmium S B.16 14.713 0.178 1.953 0.00 Monitor Limit i A Chromium S 67.99 367.815 1.576 6.6B9 0.68 Monitor Monitor I NCAC NO 1 N Copper AL 5.57 51.494 15.868 24.893 2.11 Monitor Monitor Monitor Monthly NO A Nickel S 31.56 647.355 62.803 74.435 SJB Monitor Limit Limit I NCAC NO L Lead S 42.94 183.908 3.938 10.482 6.80 Monitor Monitor Limit NCAC NO Y Zinc AL 95.99 367.815 46.726 51.336 10.47 Monitor Monitor Monitor Monthly NO I S Cyanide S 3.98 36.782 12.383 15.394 0.00 Limit Limit I I Mercury S 0.03 0.088 0.000 0.000 0.00 I I S Silver AL 0.33 0.441 0.225 1.465 0.00 Monitor Monitor I Selenium S 1.63 36.182 0.000 0.000 0.00 I 1 R Arsenic S I 16.32 367.615 0.000 0.000 0.00 E Phenols S 0.000 0.000 0.000 0.00 I S NH3-N C 0.000 0.00 1 U T.R.Chlor.AL 250.114 0.00 Limit L T S SUMMER MODEL @ 5 . 5 MGD ---------- MODEL RESULTS ---------- Discharger : TOWN OF BOONE WWTP Receiving Stream : SOUTH FORK NEW RIVER ---------------------------------------------------------------------- The End D .O. is 8 . 47 mg/l . The End CBOD is 1 . 10 mg/l . The End NBOD is 0 . 31 mg/l . ---------------------------------------------------------------------- WLA WLA WLA DO Min CBOD NBOD DO Waste Flow (mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd) ------ --------- ------- ---- ---- -- ---------- Segment 1 6. 65 0 . 00 1 Reach 1 28 . 90 9. 90 5 . 00 5 . 50000 Reach 2 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 3 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 4 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 5 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 6 0 . 00 0 . 00 0 . 00 0 . 00000 Reach 7 0 . 00 0 . 00 0 . 00 0 . 00000 *** MODEL SUMMARY DATA *** Discharger : TOWN OF BOONE WWTP Subbasin 050701 Receiving Stream : SOUTH FORK NEW RIVER Stream Class : C Summer 7Q10 : 13 . 1 Winter 7Q10 : 18 . 6 Design Temperature: 23 . 0 ILENGTHI SLOPEI VELOCITY I DEPTHI Kd I Kd I Ka I Ka I KN I I mile I ft/mil fps I ft Idesignl @20'h Idesignl @20;z Idesignl -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 0 . 401 7 . 001 0 . 477 1 1 . 74 1 0 . 29 1 0 . 25 1 4 . 63 1 4 . 341 0 . 38 1 Reach 1 1 1 I I I 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1 . 701 7 . 001 0 . 493 1 1 . 78 10 . 29 1 0 .25 1 4 . 79 1 4 . 481 0 . 38 1 Reach 2 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 0 .201 7 . 001 0 . 497 1 1 . 79 1 0 . 29 1 0 . 25 1 4 . 83 1 4 . 521 0 . 38 1 Reach 3 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1 . 401 7 . 001 0 . 502 1 1 . 81 1 0 . 29 1 0 .25 1 4 . 88 1 4 . 571 0 . 38 1 Reach 4 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1 . 401 7 . 001 0 .506 1 1 . 83 1 0 .29 1 0 . 25 1 3 . 32 1 3 . 111 0 . 38 I Reach 5 1 1 1 1 1 I 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1 . 101 7 . 001 0 .578 1 1 . 99 1 0 .29 1 0 .25 1 3 . 80 1 3 .561 0 . 38 I Reach 6 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 62 . 001 7 . 001 0 . 705 1 2 . 36 1 0 .29 10 . 26 1 4 . 63 1 4 . 341 0 . 38 1 Reach 7 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- I Flow I CBOD I NBOD I D .O. I I cfs I mg/l I mg/l I mg/l I Segment 1 Reach 1 Waste 1 8 . 525 128 . 900 I 9 . 900 1 5. 000 Headwaters ) 13 . 100 1 2 . 000 1 1 . 000 1 7 .720 Tributary 1 0 . 000 1 0 . 000 1 0 . 000 1 7 . 720 * Runoff 1 0 .250 I 2 . 000 1 1 . 000 1 7 . 720 Segment 1 Reach 2 Waste 1 0 . 000 1 0 . 000 1 0 . 000 1 0 . 000 Tributary 1 1 . 450 1 2 . 000 1 1 . 000 1 7 . 720 * Runoff 1 0 .240 1 2 . 000 1 1 . 000 1 7 . 720 Segment 1 Reach 3 Waste 1 0 . 000 1 0 . 000 1 0 . 000 1 0 . 000 Tributary 1 0 . 440 1 2 . 000 1 1 . 000 1 7 . 720 * Runoff 1 0 . 000 1 2 . 000 1 1 . 000 1 7 . 720 Segment 1 Reach 4 Waste 1 0 . 000 1 0 . 000 1 0 . 000 1 0 . 000 Tributary 1 0 .500 I 2 . 000 1 . 000 I 7 . 720 * Runoff 0 .240 I 2 . 000 1 . 000 I 7 . 720 Segment 1 Reach 5 Waste 0 . 000 1 0 . 000 I 0 . 000 I 0 . 000 Tributary 0 . 300 I 2 . 000 1 . 000 I 7 . 720 * Runoff I 0 . 240 I 2 . 000 1 . 000 I 7 . 720 Segment 1 Reach 6 Waste I 0 . 000 1 0 . 000 1 0 . 000 1 0 . 000 Tributary 1 8 . 900 I 2 . 000 1 . 000 1 7 . 720 * Runoff 0 . 240 I 2 . 000 1 . 000 7 . 720 Segment 1 Reach 7 Waste I 0 . 000 1 0 . 000 1 0 . 000 1 0 . 000 Tributary 1 15 . 000 1 2 . 000 1 1 . 000 1 7 . 720 * Runoff 1 0 .290 1 2 . 000 1 1 . 000 7 . 720 * Runoff flow is in cfs/mile SUMMER MODEL @ 5 .5 MGD I Seg # Reach # Seg Mi I D.O. I CBOD NBOD Flow I 1 1 0 . 00 6 . 65 12 . 60 4 . 51 21 . 63 1 1 0 . 10 6 . 69 12 .55 4 . 48 21 . 65 1 1 0 . 20 6 . 74 12 . 49 4 . 46 21 . 67 1 1 0 . 30 6 . 78 12 . 43 4 . 43 21 . 70 1 1 0 . 40 6 . 82 12 . 37 4 . 41 21 . 72 1 2 0 . 40 6 . 88 11 . 72 4 . 19 23 . 17 1 2 0 . 50 6. 92 11 . 67 4 . 17 23 . 20 1 2 0 . 60 6. 95 11 . 62 4 . 15 23 .22 1 2 0 . 70 6. 99 11 .57 4 . 12 23 .25 1 2 0 . 80 7 . 02 11 .52 4 . 10 23 .27 1 2 0 . 90 7 . 05 11 . 47 4 . 08 23 .29 1 2 1 . 00 7 . 08 11 . 42 4 . 06 23 . 32 1 2 1 . 10 7 . 11 11 . 36 4 . 04 23 . 34 1 2 1 . 20 7 . 14 11 . 31 4 . 01 23 . 37 1 2 1 . 30 7 . 17 11 . 26 3 . 99 23 . 39 1 2 1 . 40 7 . 19 11 .22 3 . 97 23 . 42 1 2 1 . 50 7 .22 11 . 17 3 . 95 23 . 44 1 2 1 . 60 7 . 24 11 . 12 3 . 93 23 . 46 1 2 1 .70 7 . 26 11 . 07 3 . 91 23 . 49 1 2 1 . 80 7 . 28 11 . 02 3 . 88 23 .51 1 2 1 . 90 7 . 30 10 . 97 3 . 86 23 .54 1 2 2 . 00 7 . 32 10 . 92 3 . 84 23 . 56 1 2 2 . 10 7 . 34 10 . 87 3 . 82 23 . 58 1 3 2 . 10 7 . 34 10 . 71 3 . 77 24 . 02 1 3 2 . 20 7 . 36 10 . 67 3 . 75 24 . 02 1 3 2 . 30 7 . 38 10 . 64 3 . 73 24 . 02 1 4 2 . 30 7 . 38 10 . 46 3 . 68 24 . 52 1 4 2 . 50 7 . 42 10 . 37 3. 64 24 . 57 1 4 2 .70 7 . 45 10 . 28 3 . 60 24 . 62 1 4 2 . 90 7 . 48 10 . 19 3 .56 24 . 67 1 4 3 . 10 7 . 50 10 . 11 3 .53 24 . 72 1 4 3 . 30 7 .53 10 . 02 3 . 49 24 . 76 1 4 3 . 50 7 . 55 9. 93 3 . 45 24 . 81 1 4 3 . 70 7 . 57 9. 85 3 . 42 24 . 86 1 5 3 . 70 7 . 57 9. 76 3 . 39 25 . 16 1 5 3 . 90 7 . 56 9. 67 3 . 35 25 . 21 1 5 4 . 10 7 . 54 9.59 3. 32 25 . 25 1 5 4 . 30 7 . 53 9.51 3.28 25 . 30 1 5 4 .50 7 . 52 9. 43 3.25 25 . 35 1 5 4 . 70 7 . 51 9. 35 3 .21 25 . 40 1 5 4 . 90 7 . 50 9.27 3 . 18 25 . 45 1 5 5 . 10 7 .50 9 . 19 3 . 15 25 . 49 1 6 5 . 10 7 .55 7 . 33 2 . 59 34 . 39 1 6 5 . 20 7 .56 7 . 31 2 .58 34 . 42 1 6 5 . 30 7 . 57 7 .28 2 . 57 34 . 44 1 6 5 . 40 7 .58 7 . 25 2 .56 34 . 47 1 6 5 . 50 7 . 59 7 . 23 2 .55 34 . 49 1 6 5 . 60 7 . 59 7 .20 2 . 54 34 .51 1 6 5 . 70 7 . 60 7 . 18 2 . 52 34 .54 1 6 5 . 80 7 . 61 7 . 15 2 .51 34 .56 1 6 5 . 90 7 . 62 7 . 13 2 . 50 34 . 59 1 6 6 . 00 7 . 62 7 . 10 2 . 49 34 . 61 1 6 6. 10 7 . 63 7 . 08 2 . 48 34 . 63 1 6 6. 20 7 . 64 7 . 05 2 . 47 34 . 66 1 7 6.20 7 . 66 5 .52 2 . 03 49. 66 1 7 7 . 20 7 . 80 5 . 37 1 . 95 49. 95 1 7 8 . 20 7 . 89 5 . 21 1 , 89 50 . 24 1 7 9 . 20 7 . 96 5 . 06 1 . 82 50 . 53 1 7 10 .20 8 . 01 4 . 92 1 . 76 50 . 82 1 7 11 .20 8 . 05 4 . 78 1 . 70 51 . 11 1 7 12 . 20 8 . 08 4 . 64 1 . 64 51 . 40 1 7 13 . 20 8 . 11 4 . 51 1 . 58 51 . 69 1 7 14 . 20 8 . 13 4 . 39 1 . 53 51 . 98 1 7 15 . 20 8 . 14 4 . 26 1 . 48 52 . 27 1 7 16 . 20 8 . 16 4 . 14 1 . 43 52 . 56 1 7 17 . 20 8 . 17 4 . 03 1 . 38 52 . 85 1 7 18 . 20 8 . 19 3 . 92 1 . 33 53 . 14 1 7 19 .20 8 . 20 3 . 81 1 . 29 53 . 43 1 7 20 .20 8 . 21 3 . 70 1 .24 53 . 72 1 7 21 .20 8 .22 3 . 60 1 . 20 54 . 01 1 7 22 .20 8 .23 3 .50 1 . 16 54 . 30 1 7 23 . 20 8 .24 3 . 41 1 . 12 54 . 59 1 7 24 . 20 8 .25 3 . 31 1 . 09 54 . 88 1 7 25 . 20 8 . 26 3 .22 1 . 05 55 . 17 1 7 26 . 20 8 . 27 3 . 14 1 . 02 55 . 46 1 7 27 .20 8 .28 3 . 05 0 . 98 55 . 75 1 7 28 .20 8 .29 2 . 97 0 . 95 56 . 04 1 7 29.20 8 . 30 2 . 89 0 . 92 56. 33 1 7 30 .20 8 . 30 2 . 81 0 . 89 56. 62 1 7 31 . 20 8 . 31 2 . 74 0 . 86 56. 91 1 7 32 . 20 8 . 32 2 . 67 0 . 84 57 . 20 1 7 33 . 20 8 . 33 2 . 60 0 . 81 57 . 49 1 7 34 . 20 8 . 33 2 . 53 0 . 79 57 . 78 1 7 35 . 20 8 . 34 2 . 46 0 . 76 58 . 07 1 7 36. 20 8 . 35 2 . 40 0 . 74 58 . 36 1 7 37 . 20 8 . 35 2 . 34 0 . 72 58 . 65 1 7 38 . 20 8 . 36 2 . 28 0 . 69 58 . 94 1 7 39. 20 8 . 36 2 . 22 0 . 67 59 . 23 1 7 40 . 20 8 . 37 2 . 16 0 . 65 59 . 52 1 7 41 . 20 8 . 38 2 . 11 0 . 63 59 . 81 1 7 42 . 20 8 . 38 2 . 05 0 . 61 60 . 10 1 7 43 .20 8 . 39 2 . 00 0 . 60 60 . 39 1 7 44 .20 8 . 39 1 . 95 0 .58 60 . 68 1 7 45 .20 8 . 40 1 . 90 0 .56 60 . 97 1 7 46.20 8 . 40 1 . 86 0 .55 61 . 26 1 7 47 .20 8 . 40 1 . 81 0 . 53 61 . 55 1 7 48 .20 8 . 41 1 . 76 0 . 52 61 . 84 1 7 49 . 20 8 . 41 1 . 72 0 .50 62 . 13 1 7 50 . 20 8 . 42 1 . 68 0 . 49 62 . 42 1 7 51 . 20 8 . 42 1 . 64 0 . 47 62 . 71 1 7 52 . 20 8 . 43 1 . 60 0 . 46 63 . 00 1 7 53 . 20 8 . 43 1 . 56 0 . 45 63 .29 1 7 54 . 20 8 . 43 1 .52 0 . 44 63 .58 1 7 55 . 20 8 . 44 1 . 49 0 . 43 63 . 87 1 7 56 . 20 8 . 44 1 . 45 0 . 41 64 . 16 1 7 57 .20 8 . 44 1 . 42 0 . 40 64 . 45 1 7 58 . 20 8 . 45 1 . 39 0 . 39 64 . 74 1 7 59 . 20 8 . 45 1 . 35 0 . 38 65 . 03 1 7 60 .20 8 . 45 1 . 32 0 . 37 65 . 32 1 7 61 .20 8 . 45 1 .29 0 . 36 65 . 61 1 7 62 . 20 8 . 46 1 .26 0 . 35 65 . 90 1 7 63 . 20 8 . 46 1 . 23 0 . 35 66 . 19 1 7 64 . 20 8 . 46 1 . 21 0 . 34 66 . 48 1 7 65 .20 8 . 47 1 . 18 0 . 33 66. 77 1 7 66. 20 8 . 47 1 . 15 0 . 32 67 . 06 1 7 67 . 20 8 . 47 1 . 13 0 . 31 67 . 35 1 7 68 . 20 8 . 47 1 . 10 0 . 31 67 . 64 Seg # Reach # I Seg Mi I D.O. CBOD I NBOD I Flow I State of North Carolina Department of Environment, Health, and Natural Resources Division of Environmental Management 512 North Salisbury Street • Raleigh', North Carolina 27604 James G. Martin, Governor September 3, 1991 George T. Everett, Ph.D. William W. Cobey, Jr., Secretary RF6 &FI !>i E® t Director Mr. Ronald Huff Hobbs, Upchurch and Associates SEEP nu 5 1991 P . O. Box 1735 Southern Pines, NC 28387 TE 10CAL SUPPORT BRANCH Subject : Proposed Wastewater Treatment Plant Expansion at ,Boone 9.") U _I Dear M ff: This letter is ih followup to our recent phone conversation regarding whether an EA or EIS should be performed for the subject project . I called our regional offices in Winston-Salem and Asheville for background information . I also checked on the water quality classifications for the receiving waters and discussed the proposal with Trevor Clements . According to Steve Mauney, DEM' s Winston-Salem Water Quality Supervisor, the plant wa,s inspected in February, 1991 and was found to be operating properly. His records indicated that the plant had been in compliance for the 12 months prior to the inspection . The only problem he was aware of was that they were having difficulty in coming up with a long term sludge management plan . Despite these positive plant inspection results, it is understood from the Asheville Regional Office that the town has had a problem in the past with inflow and infiltration and that some bypasses may have occurred. These items need to be closely examined to ensure that appropriate corrective actions have or will be taken . It would also be a good idea to take a close look at any major industrial dischargers and look at the results of the Town' s whole effluent toxicity tests . Forrest Westall, DEM' s Asheville Water Quality Supervisor, also mentioned two other considerations in expanding the plant . First, 'there is a residential subdivision in close proximity to the plant . Residents have complained in the past about odors from the plant . The plant' s treatment process had been modified Regional Offices Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem 704/2516208 919/486-1541 704/663-1699 919/733-2314 919/9466481 9191395-3900 919/761-2351 Pollution Prevention Pays P.O. Box 29535, Raleigh, North Carolina 2762"535 Telephone 919-733-7015 An Equal Opportunity Affirmative Action Employer ` Mr . Ronald Huff September 3, 1991 Page 2 in the last several years and that has apparently reduced, but not eliminated, the odor complaints . Increasing the size of the plant may draw attention from this subdivision . Second, and more importantly, he raised the point that the plant discharges near the head of the South Fork of the New River. While I do not know the exact location of the plant, the origin of the South Fork near Boone (confluence of Middle Fork, East Fork and Winkler Creek) is roughly 22 miles upstream of a segment of the South Fork that is classified as High Quality Waters (HQW) . The HQW segment begins at the confluence with Elk Creek at Todd and runs downstream to the confluence with the North Fork of the New. From Boone to Elk Creek, the river has a C classification . In addition to the above classifications, a group called the National Committee for the New River has nominated the entire South Fork from Boone to the North Fork for reclassification to Outstanding Resource *Waters (ORW) . While reclassification of the entire river to ORW is unlikely, there are indications that portions of the river would qualify. A 26 . 5-mile segment of the river downstream of the confluence with Dog Creek has already been formally designated as a State Scenic River. There is also a segment, in this lower reach of the river designated as a National Wild and Scenic River. The National Committee for the New River has been very active in working to protect the scenic and water quality of the. river and would likely be interested in the Boone' s request to expand its WWTP . A formal reclassification of a reach of the river to ORW and the impacts it may have on upstream dischargers will be subject to review by the Environmental Management Commission (EMC) and may go out for review by the public and other interested parties through public hearings this fall . I would expect that DEM' s response to Boone' s request for speculative waste limits will have an element of uncertainity pending the results of the ORW review. In regard to the EA versus EIS issue, a good thorough EA could probably suffice provided homework has been done up front in identifying and coming up with plans to address the concerns of those that may be impacted by this project . However, a scoping process, as outlined below, would provide a more accurate reading of the type of document that will be most appropriate and would also provide a framework for producing a document (EA or EIS) that will meet the least resistance in the long run . I would recommend that the first part of the scoping entail making informal contacts with various government agencies (eg. Wildlife Resources Commission, Division of Parks and Recreation, National Parks Service, DEM, etc . ) and public interest groups (eg. representative of neighborhood group, New River Committee, others?) . We are actually at this stage now. This stage should Mr . Ronald Huff September 3, 1991 Page 3 provide a sense of the major issues and the types of studies and/or actions that will be needed to address them. It will also give a more clear indication of whether to go with the EA or EIS . Once this is done, a scoping document should be prepared and circulated through the State Clearinghouse, and a public scoping meeting in Boone is suggested. Depending on the results of the informal scoping process, above, this more formal scoping could state the type of document that is proposed to be prepared (preferable) or it could leave it open for comment . However, in either case, the document and the meeting should serve to convey the following information: 1 . The purpose of the project (ie. need for growth, accomdation of I/I problems, providing service to failing septic systems, etc . ) ; 2 . The fact that an EA and/or EIS is to be performed; 3 . The study area; 4 . Identificatign of important natural resources that could be affected and categories of impacts to be assessed; 5 . Plans or actions aimed at addressing known or potential problems identified at this stage. Based on my experience, if people believe that the town/consultant/responsible state agency (DEM in this case) have a good handle on what the problems and concerns are and that the plans to address these matters are reasonable, then they will tend to be more content with a hands-off approach and comment on the drafts . In summary, while I tend to believe that an EA could suffice, if done properly, I feel that this decision should be put off a little longer until some informal scoping (including contacting key interested parties - see attached Contacts List) has been completed. - For your information, a proposed water intake on the South Fork of the New for the town of Jefferson drew strong interest (including the National Park Service) and an EIS was initially requested for that project (although I believe an EA was eventually done) . Please feel free to contact me if you have any questions or need additional assistance. Sincerely, Alan R. Clark Environmental Planner cc : Dale Overcash Trevor Clements Melba McGee Winston-Salem Regional Office -