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Home My WebLink AboutNC0075680_Wasteload Allocation_20120425 DENR/DWQ FACT SHEET ADDENDUM FOR NPDES PERMIT DEVELOPMENT NPDES PERMIT NCO089095 Permittee Comments on Draft The Permittee requested a compliance extension to allow for process optimization to meet the draft permit BOD effluent limit of 5.0 mg/L. The Permittee requested approval to use a flow estimate procedure in lieu of installing a new flow meter at outfall. Revised Permittin Sg trategy Using the High Vista Falls WWTP draft permit limits and the existing Rosewood MHP WWTP permit limits, the level B models indicate the seasonal NBOD level B model standards (4.5 mg/L summer, 8.1 mg/L winter) in Line Creek are exceeded. Rosewood MHP WWTP permit limits are existing and are therefore not subject to revision. The historical BAT limits applied in the High Vista Falls WWTP draft permit are not a true BAT but rather a starting point for effluent NH3-N limits evaluation, lower limits can be assigned as needed. Additional level B models were ran to determine the optimum seasonal effluent NH3-N levels that High Vista Falls WWTP would need to achieve in order that the level B model NBOD standards in Line Creek are not exceeded. The additional models included comparing High Vista Falls WWTP effluent BOD limits of 5.0 mg/L and 10.0 mg/L. Based on the additional level B models the following conclusions were reached and will be incorporated into the final permit: 1) The impact of limiting the effluent to 5.0 mg/L BOD versus 10.0 mg/L was insignificant and does not impact the wqs in Line Creek. Effluent BOD limits, monthly average 10.0 mg/L and 15.0 mg/L daily, will be assigned in the final permit. Compliance extension is not warranted at final permit amended limits. 2) A year round monthly average effluent NH3-N limit of 1.0 mg/L was the optimum value that met the level B model NBOD standards. As a private domestic treatment facility effluent limits, monthly average 1.0 mg/L and daily 5.0 mg/L, will be assigned in the final permit. Based on reported effluent N113-N data, the facility 2 year average NH3-N is less than 0.6 mg/L. The new effluent flow meter/recording system remains a requirement to further protect water quality in Line Creek. No other changes will be made to the final permit. NAME: DATE: REGIONAL OFFICE COMMENTS Reviewed via phone conference 4/25/12 with Chuck Cranford and Keith Haynes, Asheville Regional Office/Surface Water Protection. No comments recommend proceeding with final. Date:4/11/12 HIGH VISTA FALLS WWTP NCO089095 pb: rdb BOD=10 mg/L, DO= 5 mg/L, Flow=0.045 MGD NH3-N = 1.1 mg/L: Level B Model Prediction for Line Creek - Summer 9.0 ----------------------------------- -------------------------------- D.O. DO WQS, minimum 13 NBOD NBOD WQS,maxmum 8.0 ----- ------------------------ - --- --,------0------�- =s------------ 7.0 -------------------�---------------------------------------------------------- O = o 6.0 ------------------Q'---------------------------------------------------------- s � G = J 5.0 n v E 4.0 °-' ------------------- ---- --------------------------------------------------- 3.0 -- ---------------------------------------- -------------- 2.0 --------- --------- ---------------------------------------------------------- 1.0 -------------------------------------------------------------------------------- 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile NH3-N = 0.8 mg/L: Level B Model Prediction for Line Creek - Winter 12.0 o D.O. DO WQS, minimum NBOD NBOD WQS, maxmum 11.0 10.0 9.0 8.0 2 7.0 J E 6.0 V) CU 5.0 T v 4.0 3.0 v 2.0 1.0 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile Date: 2/15/12 LEVEL B MODEL PREDICTION pb: rdb High Vista Falls WWTP 0.045 MGD Level B Model Prediction for Line Creek - Winter 12.0 D.O. DO WQS, minimum -NBOD NBOD WQS, maxmum 11.0 10.0 9- 9.0 8.0 2 7.0 ao J 6.0 E 5.0 4.0 3.0 2.0 1.0 0.0 �- 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile Level B Model Prediction for Line Creek - Summer 9.0 ---------------------------- ----------------------------------------------------- o D.O. DO WQS, minimum E3 NBOD NBOD WQS, maxmum 8.0 ----- ------------- --------- - --- -- ------- ------ ------------ 7.0 -------------------;E 0 _ CL 6.0 oTa----------------------- s = J 5.0 aU tin E v 4.0 - ------------------- ------------- -------------------------- 3.0 --------- ------------------------------------------- ----------------------- 2.0 -------------------------------------------------------------------------------- 1.0 -------------------------------------------------------------------------------- 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile BOD = 10 mg/L: Level B Model Prediction for Line Creek - Summer D.O. -- DO WQS, minimum NBOD NBOD WQS, maxmum 8.0 ----- - ------------------------ -- ------ ------------ 7.0 -------------------- --------------------------------------------------------- 0 = 0 6.0 ------------- Q------------------------ ---- S J 5.0 N ------------ tin E4.0 -' ------------------- ------------- ------------------------------------------ 3.0 --------- -------- ---------------------------------- ---------------------- 2.0 -------------------------------------------------------- 1.0 -------------------------------------------------------------------------------- 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile BOD = 10 mg/L: Level B Model Prediction for Line Creek - Winter D.O. DO WQS, minimum -NBOD NBOD WQS, maxmum 12.0 11.0 10.0 -�- 9.0 8.0 2 J 7.0 on E 6.0 5.0 4.0 rD 3.0 2.0 1.0 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile From: Berry, Ron Sent: Thursday,April 12, 2012 9:37 AM To: Belnick, Tom Subject: RE: Levl B model results for High Vista Falls WWTP Tom, My belief is that it has to do with(1) the current NH3-N limits associated with Rosewood MHP WWTP and(2) the differences in what is needed to accomplish meeting the seasonal NBOD instream criterion. Rosewood NH3-N winter limit is 14 mg/L and summer limit is 5.5 mg/L . To meet the instream NBOD criterion, the level B model winter NBOD value must be reduced 2.22 mg/L while the summer NBOD value has only to be reduced by 0.63 mg/L. Just for comparison, I ran level B models holding High Vista Falls NH3-N limits to 2 mg/L (summer) and 4 mg/L (winter) and adjusted Rosewood MHP NH3-N limits to achieve instream NBOD compliance. Rosewood NH3-N summer limit would need to change from the current 5.5 mg/L to 4.4 mg/L and the winter limit would need to change from the current 14 mg/L to 9.4 mg/L. Ron Ron Berry ron.berry@ncdenr.gov Engineer I DWQ/Point Source/NPDES Complex Permitting Unit NCDENR Phone: (919) 807-6396 Fax: (919) 807-6495 Office: Archdale Building Room 925Y Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: Belnick, Tom Sent: Wednesday, April 11, 2012 5:41 PM To: Berry, Ron Subject: RE: Levl B model results for High Vista Falls WWTP Ron- any idea why the winter limit would be more stringent than the summer limit? Wouldn't there be more dilution in winter? Tom Belnick Supervisor, Complex NPDES Permitting Unit NC DENR/Division of Water Quality 1617 Mail Service Center, Raleigh,NC 27699-1617 (919) 807-6390; fax (919) 807-6495 E-mail correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: Berry, Ron Sent: Wednesday, April 11, 2012 4:32 PM To: Belnick, Tom Subject: Levl B model results for High Vista Falls WWTP Tom, file:///C/.../89095%202012/level%20B%20ModeM`/`20Lev1%20B%20model%20results%20for%20High%20Vista%20Falls%20WWTP.txt[8/23/2023 5:26:38 PM] I reran the level B model for High Vista Falls WWTP with winter NH3-N limit=4 mg/L and summer NH3- N limit =2.0 mg/L using both BOD = 10 mg/L and BOD = 5 mg/L. The results were duplicated and as we determined before the BOD has no impact on the NBODs,but the NBODs exceed instream ammonia toxicity criterion at the point High Vista Falls WWTP interacts with Rosewood MHP WWTP. A BOD limit = 10 mg/L ,which is the facility design, is protective and no compliance extension for BOD is necessary. I ran additional level B models to determine the NH3-N limits that High vista Falls would need to achieve so the instream ammonia toxicity criterion would not be exceeded . A summer NH3-N limit= 1.1 mg/L and winter NH3-N= 0.8 mg/L was required. I looked at the effluent NH3-N data reported by High Vista since Jan 2009. Out of 34 reported values, two exceed 2 mg/L but the average of the remaining 32 reported values =0.55 mg/L. The flow averaged 50% of 0.045 MGD. If you need any more information let me know. Ron Ron Berry ron.berry@ncdenr.gov Engineer I DWQ/Point Source/NPDES Complex Permitting Unit NCDENR Phone: (919) 807-6396 Fax: (919) 807-6495 Office: Archdale Building Room 925Y Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. file:///C/.../89095%202012/level%20B%20ModeM`/`20Lev1%20B%20model%20results%20for%20High%20Vista%20Falls%20WWTP.txt[8/23/2023 5:26:38 PM] DENR/DWQ FACT SHEET FOR NPDES PERMIT DEVELOPMENT NPDES PERMIT NC0089095 Facility Information Applicant/Facility High Vista Falls WWTP (formerly High Vista Falls WWTF) Name: Applicant Address: P. O. Box 1407; Pisgah Forest,NC 28768 Facility Address: Creasman Hill Road; Mills River,NC 28759 Permitted Flow 0.045 MGD Type of Waste: 100% domestic Facility/Permit Status: Class II/Active non-discharge WQ0015929; New NPDES County: Henderson County Miscellaneous Receiving Stream: Line Creek Stream Classification: C Subbasin: 04-03-02 Index No. 6-59 Drainage Area (Mil : 0.32 HUC: 06010105 Summer 7Q10 cfs 0.12 303 d Listed? No Winter 7Q 10 cfs : 0.15 Regional Office: Asheville 30Q2 (cfs) 0.24 State Grid/USGS FBNE Quad: Sk land,NC Average Flow cfs : 0.55 Permit Writer: Ron Berry IWC % : s 36.8%/w 31.7% Date: 1/31/12 BACKGROUND The High Vista Falls WWTF began operation as a privately owned 0.045 MGD permitted non- discharge domestic treatment facility operated by the High Vista Falls development group for treatment of domestic wastewater from the High Vista Falls residential community. The non- discharge capability was accomplished by meeting tertiary requirements for reclaim water and then providing adequate storage and irrigation on the High Vista Falls golf complex. The developer was also the owner of the golf course. Aquifer Protection was responsible for issuing the non-discharge permit WQ0015929 and subsequent compliance. The golf course complex, designated property for anticipated future treatment needs, and the original treatment plant have been sold over the years to separate private groups. The existing permitted facility owner no longer owns any equipment, or resources, or property beyond the physical location of the existing treatment plant. The original storage pond and irrigation system is now part of the golf course property and as such it operation and maintenance is controlled by the golf course. The current non-discharge operation is contingent on all parties maintaining their portion of the system, and the golf course accepting and storing treated reclaim wastewater year round. Non-compliance with the non-discharge permit requirements and operational problems are reoccurring event. A & D Water Services, Inc., current owner of the 0.045MGD reclaim treatment facility, has evaluated alternatives for disposal of the excess reclaim wastewater to resolve the continued compliance issues with the non-discharge operation and has concluded a NPDES discharge to Line Creek is the best option. As a result, a NPDES application for the discharge of 0.045 MGD of treated domestic wastewater to Line Creek with intermittent conjunctive use was submitted. Fact Sheet NPDES NC0089095 Page 1 of 4 The Division has reviewed the concerns with Aquifer Protection, evaluated the owner alternative analysis for options, and conducted an analysis of Line Creek assimilation capacity with the addition of 0.045 MGD treated domestic wastewater. The Division concluded that the NPDES option was a viable option but utilizes the remaining domestic waste load capacity of Line Creek. TREATMENT PROCESS Domestic wastewater passes through a bar screen into two influent equalization basins, 9,000 gallons and 6,500 gallons. Transfers pumps delivery the wastewater to 5 aeration basins, each basin is 9,000 gallons, blowers provide the required air for mixing and aeration. A flow splitter box divides the combined aeration effluent between 2 clarifiers, 6,200 gallon capacity each. The combined effluent from the clarifier flows to the dual 48 cubic feet media tertiary filters and collects in a clearwell. The clearwell effluent divides between two 1,200 gallon chlorine contact chambers for chlorination, recombines and flows through the effluent flow meter, and collects in the effluent splitter box. Filter backwash pumps use the clearwell water to backwash the tertiary filters with the backwash wastewater returning back to influent equalization basins. The effluent splitter box proportions the flow either to the 6,500 gallons effluent equalization basin or the 500,000 gallon effluent holding pond. The effluent holding pond original purpose is to capture treated wastewater that does not meet reclaim standards and allow recycling of the captured wastewater back to the headworks. When recycling is conducted the pond wastewater is drained back to the reclaim effluent pumps station, the reclaim effluent to the golf course is blocked, and the effluent flow is diverted back to the facility headworks. WAS is routinely removed from the clarifiers and collected in 2 sludge holding basins, 9,000 gallons and 2,300 gallons. About every three month a contractor pumps and hauls the sludge to the City of Hendersonville WWTP. The reclaim effluent is transferred to a pond on the golf course where it can be further distributed for irrigation. Aquifer Protection Section issues and administers the non-discharge permit WQ0015929 and compliance associated with the current operation. To facilitate the new NPDES discharge, the effluent equalization flow will be diverted to a new dechlorination system, then through a new post aeration system, and then to the new discharge into Line Creek. The Division will require a new effluent meter/recorder system be installed to monitor the NPDES flow. PERMITTING STRATEGY A Level B Model was prepared for summer and winter conditions and indicates (1) an effluent year round monthly limit of 5.0 mg/L and seasonal BAT NH3-N limits, 2.0 mg/L in summer, 4.0 mg/L in winter, are require to address surface water quality in the stream at the point of confluence with Rosewood MHP discharge (NC0075680); (2) an effluent DO minimum limit is required to meet surface water quality standards as a result of the added oxygen demand to Line Creek; (3) the remaining waste load capacity was utilized thus no new dischargers or expansion under current technology for High Vista Falls will be allowed. The indicated limits will be applied in this permit. The existing facility has mandatory capability to meet TSS limits of monthly 10 mg/L and 5 mg/L daily and fecal coliform limits of monthly 14/100 ml daily 25/100 ml. These TSS limits and fecal coliform limits will be applied in this NPDES permit. To be in compliance with surface water quality standards a pH limit range of not more than 9.0 S.U. nor less than 6.0 S.0 will be Fact Sheet NPDES NC0089095 Page 2 of 4 applied in this permit. Temperature monitoring will be required in this permit. As a Class II NPDES treatment facility the surface water quality standards monitoring frequency and monitoring parameters were applied accordingly. It is anticipated the proposed new post aeration system should provide sufficient treatment to meet the DO limit. Since the facility uses chlorination for disinfection then a TRC toxicity limit will be added to this permit, and dechlorination will be required. Since the facility qualifies as a minor 100% domestic treatment facility and has seasonal BAT NH3-N limits and a year round TRC toxicity limit then no additional toxicity test requirement are warranted at this time. A new NPDES effluent meter/recorder system located in the new NPDES discharge piping will be required to properly account for the discharge and flow compliance in this permit. The existing effluent turbidity monitoring system will be used to report turbidity on quarterly bases in this permit. Data review The NDs reports were reviewed for the period of January 2009 to November 2011. ND data is summarized in Table I below: Table I Monthly Monthly Monthly Monthly Fecal Flow BOD TSS NH3-N Coliform MGD m /L m /L m /1 #//100 MI) Average 0.0258 5.42 2.45 0.59 4.7 Maximum 0.036 17.7 10.9 10.58 71 Minimum 0.016 < 0.1 < 0.1 <0.1 < 1.0 Conjunctive Use and Aquifer Protection Section Notification Operation, compliance, and treatment requirements for conjunctive use are governed by regulatory authority by Aquifer Protection Section. The permittee will be directed to contact Aquifer Protection Section for disposition of non-discharge permit including the existing WQ0015929 permit. A copy of the NPDES draft permit will be submitted to Aquifer Protection Section for comment. SUMMARY OF NPDES PERMIT REQUIREMENTS In keeping with Division policies the following will be incorporated into the permit: • Effluent limitations and monitoring requirements for Flow, TRC, BOD, TSS, NH3-N, Fecal Coliform,pH, and DO. Effluent monitoring for temperature and turbidity. • Prior to discharge, approval for Authorization to Contruct and receipt of signed Engineer Certificate. PROPOSED SCHEDULE FOR PERMIT ISSUANCE Draft Permit to Public Notice: February 1, 2012 Permit Scheduled to Issue: March 2012 Fact Sheet NPDES NC0089095 Page 3 of 4 NPDES DIVISION CONTACT If you have questions regarding any of the above information or on the attached permit, please contact Ron Berry at(919) 807-6396 or email ron.berry@ncdenr.gov. NAME: DATE: REGIONAL OFFICE COMMENTS NAME: DATE: SUPERVISOR: DATE: Fact Sheet NPDES NCO089095 Page 4 of 4 y. r Berry, Ron From: Berry, Ron Sent: Tuesday, January 31, 2012 9:50 AM To: Cranford, Chuck Subject: RE: More comments on High Vista Falls Chuck, FYI I did a quick check since Rosewood is currently not required to operate at tertiary BAT limits but is operating with secondary treatment limits and does not need to meet BAT NH3-N limits. Not knowing what they may need expansion- wise, Line Creek waste load model suggest the possibility of applying NH3-N limits still above the BAT limits(less than current limits) for a Rosewood expansion double the existing permitted flow that would protect Line Creek.This could all change if Line Creek became impaired. The NH3-N BAT monthly limits for minor domestic treatment facility are summer=2.0 mg/L, winter=4.0 mg/L.As always any expansion request is subject to review for approval at the time of the permit modification application. Ron Ron Berry ron.berry@ncdenr.eov Engineer I DWQ/Point Source/NPDES Complex Permitting Unit NCDENR Phone: (919)807-6396 Fax: (919)807-6495 Office:Archdale Building Room 925Y Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: Cranford, Chuck Sent: Tuesday, January 31, 2012 8:16 AM To: Berry, Ron Subject: RE: More comments on High Vista Falls Hi Ron— Keith, Wanda and I met yesterday to compile comments we had on the earlier draft.Your email with the proposed changes was timely. According to Wanda and Keith, more experienced than I in WW treatment,the lower limits could be tough to meet. But, they did not think impossible. The probable expansion limitation to the Rosewood MHP could be an issue for that facility.The owner has more property and is very likely to desire an expansion at some point.We plan on contacting him, so he can comment on the permit. Our comments are likely ready to be submitted. Will you update the permit and send it to us one more time before it goes public or should we go with the information from the email yesterday and comment? Thanks, 1 Chuck Chuck Cranford Supervisor,Surface Water Protection Section Division of Water Quality Asheville Regional Office 2090 U.S. 70 Highway Swannanoa, NC 28778 Tel:828-296-4500 Fax:828-299-7043 chuck.cranford(cDncdenr.gov Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: Berry, Ron Sent: Monday, January 30, 2012 11:51 AM To: Cranford, Chuck Subject: More comments on High Vista Falls Chuck, Just emailed an update to everyone on the amended draft permit and explained that High Vista Falls was receiving a fixed allocation with no possibility of expanding beyond the 0.045 MGD discharge into Line Creek.Also,the NPDES permit limits are fixed based on the allocation and are more stringent than conjunctive. I did not made any changes to the proposed TSS limits as the facility is already required to meet a monthly average limit of 5 mg/L and we will continue to expected the facility to meet TSS limits as designed. My only concern is the ability of High Vista Falls to comply with the NPDES limits. Based on the last three years of data submitted under the non-discharge permit: 1) Flow monthly average=0.026 MGD 2) BOD monthly average=5.4 mg/L(42%of data above 5 mg/L) 3) TSS monthly average=2.5 mg/L(4%of data above 5 mg/L) 4) NH3-N monthly average=0.6 mg/L( 15%of summer data above summer 2 mg/L, no winter data above winter 4.0 mg/L) 5) Fecal Coliform monthly average=4.7#/100 ml (there were some daily values in excess of 25#/100 ml, not sure of problem,facility using tablet chlorination) We do not want to issue a final permit for parameters the facility is incapable of meeting. However,changing this facility from a reclaim to a NPDES discharge may help. In any case this facility is designed as a tertiary treatment facility and my understanding is that it should be capable of operating within the NPDES permit limits. Not sure how the past operational problems relate to the reported data. Let me know of your thoughts or the regions thoughts. My goal is to issue the draft permit this week for comment. Thanks, Ron Ron Berry ron.berry@ncdenr.gov Engineer I DWQ/Point Source/NPDES Complex Permitting Unit NCDENR 2 Phone: (919)807-6396 Fax: (919) 807-6495 Office:Archdale Building Room 925Y Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. 3 From: John C Weaver [jcweaver@usgs.gov] Sent: Thursday, May 05, 2011 3:10 PM To: R A Lenderman Cc: admaint@comporium.net; Berry, Ron; Curtis Weaver Subject: Re: High Vista Falls WWTP Mr. Lenderman, Just a quick note to say your request has been received. The low-flow estimates will be determined and returned to you within a few weeks. Please let me know of any questions. Thank you. Curtis Weaver J. Curtis Weaver, Hydrologist, PE USGS North Carolina Water Science Center 3916 Sunset Ridge Road Raleigh,NC 27607 Phone: (919) 571-4043 // Fax: (919) 571-4041 Mobile: (919) 830-6235 E-mail address --jcweaver@usgs.gov Internet address -- http://nc.water.usgs.gov/ ************************************************************* From: R A Lenderman<ral2125@earthlink.net> To: jcweaver@usgs.gov Cc: ron.berry@ncdenr.gov, admaint@comporium.net Date: 05/03/2011 10:28 AM Subject: High Vista Falls WWTP To: Mr Curtis Weaver,USGS, Raleigh,NC From: Richard A Lenderman, P.E. file:///C/...a%20Falls%20WWTP/NCO089095/89095%202012/Pdf%20&%20emait/5-5-11%2ORe%2OHigh%20Vista%2OFalls%20WWTP.txt[8/23/2023 4:54:50 PM] Subject: NPDES Discharge Permit Application, High Vista Falls WWTP, Henderson County,NC This email is written on behalf of Mr. Aubrey Deaver, President of A& D Water Service, owner and operator of the subject WWTP. Attached is a scan of an email from you previously received by Mr. Deaver concerning low-flow characteristics for Line Creek at NC Hwy 191 at the Henderson/Buncombe County line. An NPDES permit application for High Vista WWTP has been submitted to NCDENR for a direct discharge into Line Creek immediately adjacent to the plant site. Review comments have been received from NCDENR. One comment is as follows: "Provide USGS data for 7Q10 winter flow and QA flow (average stream flow) at the discharge location and the mouth of Line Creek(French Broad River). USGS may provide this data in terms of cfs/sq mi which would be sufficient." The discharge location on Line Creek is approximately 700 feet downstream from Hwy 191 and the mouth is at French Broad River about one mile downstream from Hwy 191. We herewith request that you provide the flow characteristics for Line Creek as specified in the NCDENR review comment. Thank you very much for your assistance. If you have any questions,please email me or call at(864)415- 7909. Any fee for your response should be billed to A& D Water Service, P. O. Box 1407, Pisgah Forest,NC, 28768 or email at admaint@comporium.net. Yours truly, Rick Lenderman [attachment "HighVistaUSGS0326I O.pdf' deleted by John C Weaver/WRD/USGS/DOI] file:///C/...a%20Falls%20WWTP/NC0089095/89095%202012/Pdf%20&%20emait/5-5-11%20Re%20High%20Vista%20Falls%20WWTP.txt[8/23/2023 4:54:50 PM] From: John C Weaver Ucweaver@usgs.gov] Sent: Wednesday, May 25, 2011 10:04 AM To: R A Lenderman Cc: admaint@comporium.net; Berry, Ron; Curtis Weaver; Jeanne C Robbins; Rose D Pinnix; James C Finnerty Subject: Low-flow characteristics for Line Creek at NC Highways 191 /280 near Fletcher(USGS Sta. 0344770825)...Re: High Vista Falls WWTP U.S. Geological Survey North Carolina Water Science Center 3916 Sunset Ridge Road Raleigh,North Carolina 27607 Date: May 25, 2011 To: Mr. Richard A. Lenderman, P.E. Lenderman Engineering 228 West Road Moore, SC 29369 Mr. Lenderman, In response to your inquiry about the low-flow characteristics for a location on Line Creek at NC Highways 191 /280 at the Henderson/Buncombe County lines near Fletcher(station id 0344770825, drainage area 0.32 sgmi), the following information is provided: A check of the low-flow files here at the USGS North Carolina Water Science Center does not indicate a previous determination of low-flow characteristics for the specific point of interest identified in your email dated May 3, 2011. No USGS records of discharge are known to exist for your point of interest. Where no or insufficient data is available for a low-flow analysis, a determination of low-flow characteristics is based on assessment of low-flow yields at nearby locations where such statistics have previously been determined. The low-flow characteristics that are provided have been computed by correlating the runoff characteristics of nearby streams in vicinity of the request site. Please note the flow estimates do not account for the presence of any diversions or regulation, present or future, which may occur upstream of the request site. Previously published low-flow information for streams in your area of interest... For streams in Henderson and Buncombe Counties, the most recently published low-flow information is a statewide report completed in the early 1990's. It is USGS Water-Supply Paper 2403, 'Low-flow characteristics of streams in North Carolina" (Giese and Mason, 1993). An online version of the report is available through http://pubs.er.usgs.gov/usgspubs/wsp/wsp2403. The report provides the low-flow characteristics (based on data through 1988) via regional relations and at-site values for sites with drainage basins between 1 and 400 sgmi and not considered or known to be affected by regulation and/or diversions. If you access the report,please note the online report files are provided in the ".DJVU" format and file:///C/...20Falls%20WWTP/NCO089095/89095%202012/Pdf%20&%20email/5-25-11%2OUSGS%20Info%2Oon%2OStream%20FIows.txt[8/23/2023 4:55:51 PM] require a particular Lizardtech plug-in, also available through a link displayed on the page. Or you can click an adjacent link that will allow you to view the report as a group of images without the need for a plug-in. Several pieces of information to consider... (1)A drainage area of 0.32 sgmi was determined for your point of interest on Line Creek at NC Highways 191 /280 near Fletcher(station id 0344770825). (2) In Table 1 of the above referenced report, there are nearby partial-record sites and continuous-record gaging stations in vicinity of your point of interest for which low-flow discharge estimates are provided. Expressing these estimates as low-flow yields (again, flow per square mile of drainage area, or cfsm) provides some indication of the yield ranges that could potentially be applicable to your point of interest: 7Q10 low-flow yield range is from about 0.17 to 0.49 cfsm (with an average of about 0.38 cfsm) 30Q2 low-flow yield range is from about 0.39 to about 0.95 cfsm(with an average of about 0.75 cfsm) W7Q101ow-flow yield range is from about 0.25 to about 0.56 cfsm (with an average of about 0.47 cfsm) 7Q2 low-flow yield range is from about 0.31 to about 0.81 cfsm(with an average of about 0.62 cfsm) (3) The regional low-flow relations presented in the above referenced report for this hydrologic area (HA10) do not apply to drainage areas less than 0.5 sgmi. Use of the relations for this small drainage represents an extrapolation beyond the range in drainage area for which the statistical analyses were completed. (4) Mean annual runoff for streams in this area is mapped in the above referenced report as being 1.5 to 2.0 cfsm. (5) Considering the above information,please be aware of the following: The data provided in the above referenced report are based on periods of record ending in advance of the drought conditions that have occurred since publication of the report. In some North Carolina basins, the low-flow conditions observed during the recent droughts (1998-2002, 2007-09) have resulted in lower low-flow statistics. No formal statewide investigation has been completed to document the changes in low-flow statistics since the droughts. However, where updated analyses have been completed for selected stations, the changes in pre-drought versus updated 7Q 10 discharges have shown varying percentage changes of decline. For instance, at the nearby long-term gaging station on Mills River near Mills River(station id 03446000, drainage area 66.7 sgmi, continuous records October 1933), the 7Q10 declined about 7 percent between the 1998 and 2009 climatic years. Based on analysis of available period of record through the 2009 climatic year, the 7Q10 and 30Q2 low-flow estimates have yield values of about 0.43 cfsm and 0.91 cfsm, respectively. Note: The climatic year is the standard annual period used for low-flow analyses at continuous-record gaging stations. It runs from April 1 through March 31 and is designated by the year in which the period begins. For example, the 2009 climatic year is from April 1, 2009, through March 31, 2010. Putting together the above pieces of information... Applying the above low-flow and mean annual runoff yields (in item#2, #4) to a drainage area of 0.32 sqmi results in following flow estimates: 7Q10 low-flow estimated range is from about 0.05 to 0.16 cfs (with an average of about 0.12 cfs) 30Q2 low-flow estimated range is from about 0.12 to about 0.30 cfs (with an average of about 0.24 cfs) file:///C/...20Falls%20WWTP/NC0089095/89095%202012/Pdf%20&%20email/5-25-11%20USGS%20Info%20on%20Stream%20FIows.txt[8/23/2023 4:55:51 PM] W7Q 10 low-flow estimated range is from about 0.08 to about 0.18 cfs (with an average of about 0.15 cfs) 7Q2 low-flow estimated range is from about 0.10 to about 0.26 cfs (with an average of about 0.20 cfs) Mean annual runoff estimated range is from about 0.5 to about 0.6 cfs Invoice information... A charge of$250.00 for accessing and processing information has been assessed to partially offset these costs. An invoice covering the processing costs for these data will be sent via regular mail from the U.S. Geological Survey to the billing address shown below. Instructions for sending your payment will be shown on the invoice. Mr. Aubrey Deaver, President A& D Water Service P.O. Box 1407 Pisgah Forest,North Carolina 28768 This information is considered preliminary and subject to revision pending further analysis as further data were to become available, and is made available through our cooperative program of water-resources investigations with the North Carolina Department of Environment and Natural Resources. Hope this information is helpful. If you have any questions regarding this information,please contact me at the phone number listed below. Thank you. Curtis Weaver J. Curtis Weaver, Hydrologist, PE USGS North Carolina Water Science Center 3916 Sunset Ridge Road Raleigh,NC 27607 Phone: (919) 571-4043 // Fax: (919) 571-4041 Mobile: (919) 830-6235 E-mail address --jcweaver@usgs.gov Internet address -- http://nc.water.usgs.gov/ From: R A Lenderman<ral2125@earthlink.net> To: jcweaver@usgs.gov Cc: ron.berry@ncdenr.gov, admaint@comporium.net Date: 05/03/2011 10:28 AM Subject: file:///C/...20Falls%20WWTP/NC0089095/89095%202012/Pdf%20&%20email/5-25-11%20USGS%20Info%20on%20Stream%20FIows.txt[8/23/2023 4:55:51 PM] High Vista Falls WWTP To: Mr Curtis Weaver, USGS, Raleigh,NC From: Richard A Lenderman, P.E. Subject: NPDES Discharge Permit Application, High Vista Falls WWTP, Henderson County,NC This email is written on behalf of Mr. Aubrey Deaver, President of A& D Water Service, owner and operator of the subject WWTP. Attached is a scan of an email from you previously received by Mr. Deaver concerning low-flow characteristics for Line Creek at NC Hwy 191 at the Henderson/Buncombe County line. An NPDES permit application for High Vista WWTP has been submitted to NCDENR for a direct discharge into Line Creek immediately adjacent to the plant site. Review comments have been received from NCDENR. One comment is as follows: "Provide USGS data for 7Q 10 winter flow and QA flow (average stream flow) at the discharge location and the mouth of Line Creek(French Broad River). USGS may provide this data in terms of cfs/sq mi which would be sufficient." The discharge location on Line Creek is approximately 700 feet downstream from Hwy 191 and the mouth is at French Broad River about one mile downstream from Hwy 191. We herewith request that you provide the flow characteristics for Line Creek as specified in the NCDENR review comment. Thank you very much for your assistance. If you have any questions,please email me or call at(864)415- 7909. Any fee for your response should be billed to A& D Water Service, P. O. Box 1407, Pisgah Forest,NC, 28768 or email at admaint@comporium.net. Yours truly, Rick Lenderman [attachment "HighVistaUSGS0326 I O.pdf' deleted by John C Weaver/WRD/USGS/DOI] file:///C/...20Falls%20WWTP/NC0089095/89095%202012/Pdf%20&%20email/5-25-11%20USGS%20Info%20on%20Stream%20FIows.txt[8/23/2023 4:55:51 PM] From: John C Weaver Ucweaver@usgs.gov] Sent: Friday, May 27, 2011 4:52 PM To: R A Lenderman Cc: admaint@comporium.net; Jeanne C Robbins; Berry, Ron; Curtis Weaver Subject: Low-flow characteristics for Line Creek at mouth near Fletcher(USGS Sta. 0344770875...)Re: Low-flow characteristics for Line Creek at NC Highways 191 /280 near Fletcher(USGS Sta. 0344770825)...Re: High Vista Falls WWTP Mr. Lenderman, Using the low-flow yields provided in response (email dated May 25, 2011)to the low-flow request for Sta. 0344770825, the following flow estimates would be applicable at the mouth of Line Creek. Sta. 0344770875 Line Creek at mouth near Fletcher(drainage area at 1.55 sgmi according to drainage- area files) 7Q10 low-flow yield range is from about 0.17 to 0.49 cfsm(with an average of about 0.38 cfsm) 30Q2 low-flow yield range is from about 0.39 to about 0.95 cfsm(with an average of about 0.75 cfsm) W7Q101ow-flow yield range is from about 0.25 to about 0.56 cfsm (with an average of about 0.47 cfsm) 7Q2 low-flow yield range is from about 0.31 to about 0.81 cfsm(with an average of about 0.62 cfsm) Mean annual runoff for streams in this area is mapped in the above referenced report as being 1.5 to 2.0 cfsm. Applying a drainage area of 1.55 sgmi results in the following flow estimates: 7QIO low-flow estimated range is from about 0.25 to 0.75 cfs (with an average of about 0.6 cfs) 30Q2 low-flow estimated range is from about 0.6 to about 1.5 cfs (with an average of about 1.2 cfs) W7QlO low-flow estimated range is from about 0.4 to about 0.9 cfs (with an average of about 0.7 cfs) 7Q2 low-flow estimated range is from about 0.5 to about 1.3 cfs (with an average of about 1.0 cfs) Mean annual runoff estimated range is from about 2.3 to about 3.0 cfs Hope this information is helpful. Thank you. Curtis Weaver J. Curtis Weaver, Hydrologist, PE USGS North Carolina Water Science Center 3916 Sunset Ridge Road Raleigh,NC 27607 Phone: (919) 571-4043 // Fax: (919) 571-4041 Mobile: (919) 830-6235 E-mail address --jcweaver@usgs.gov Internet address -- http://nc.water.usgs.gov/ file:///C/...5%20High%20Vista%20Falls%20WWTP/NC0089095/89095%202012/pdf%20&%20email/5-27-11%20USGS%20Data%20rev.txt[8/23/2023 4:56:31 PM] From: R A Lenderman<ral2125@earthlink.net> To: John C Weaver<jcweaver@usgs.gov> Cc: admaint@comporium.net, ron.berry@ncdenr.gov, Curtis Weaver<jcweaver@usgs.gov>, Jeanne C Robbins <jrobbins@usgs.gov>, Rose D Pinnix<rdpinnix@usgs.gov>, James C Finnerty<jfinnerty@usgs.gov> Date: 05/26/2011 09:17 AM Subject Re: Low-flow characteristics for Line Creek at NC Highways 191 /280 near Fletcher(USGS Sta. 0344770825)...Re: High Vista Falls WWTP Dear Mr. Weaver: Thank you for the flow information on Line Creek as provided below. It does, however, appear that all your data is for Line Creek at NC Hwy 191. The request we received from NCDENR also asked for low flow and average flow at the mouth of Line Creek at French Broad River. Could you please expand your flow calculations to include the larger drainage area at the mouth of Line Creek? Thank you for youe help. Rick Lenderman -----Original Message----- From: John C Weaver Sent: May 25, 2011 10:04 AM To: R A Lenderman Cc: admaint@comporium.net, ron.berry@ncdenr.gov, Curtis Weaver , Jeanne C Robbins , Rose D Pinnix , James C Finnerty Subject: Low-flow characteristics for Line Creek at NC Highways 191 /280 near Fletcher(USGS Sta. 0344770825)...Re: High Vista Falls WWTP U.S. Geological Survey North Carolina Water Science Center 3916 Sunset Ridge Road Raleigh,North Carolina 27607 Date: May 25, 2011 To: Mr. Richard A. Lenderman, P.E. Lenderman Engineering 228 West Road Moore, SC 29369 file:///C/...5%20High%20Vista%20Falls%20WWTP/NC0089095/89095%202012/pdf%20&%20email/5-27-11%20USGS%20Data%20rev.txt[8/23/2023 4:56:31 PM] Mr. Lenderman, In response to your inquiry about the low-flow characteristics for a location on Line Creek at NC Highways 191 /280 at the Henderson/Buncombe County lines near Fletcher(station id 0344770825, drainage area 0.32 sgmi), the following information is provided: A check of the low-flow files here at the USGS North Carolina Water Science Center does not indicate a previous determination of low-flow characteristics for the specific point of interest identified in your email dated May 3, 2011. No USGS records of discharge are known to exist for your point of interest. Where no or insufficient data is available for a low-flow analysis, a determination of low-flow characteristics is based on assessment of low-flow yields at nearby locations where such statistics have previously been determined. The low-flow characteristics that are provided have been computed by correlating the runoff characteristics of nearby streams in vicinity of the request site. Please note the flow estimates do not account for the presence of any diversions or regulation, present or future, which may occur upstream of the request site. Previously published low-flow information for streams in your area of interest... For streams in Henderson and Buncombe Counties, the most recently published low-flow information is a statewide report completed in the early 1990's. It is USGS Water-Supply Paper 2403, 'Low-flow characteristics of streams in North Carolina" (Giese and Mason, 1993). An online version of the report is available through http://pubs.er.usgs.gov/usgspubs/wsp/wsp2403. The report provides the low-flow characteristics (based on data through 1988) via regional relations and at-site values for sites with drainage basins between I and 400 sgmi and not considered or known to be affected by regulation and/or diversions. If you access the report,please note the online report files are provided in the ".DJVU" format and require a particular Lizardtech plug-in, also available through a link displayed on the page. Or you can click an adjacent link that will allow you to view the report as a group of images without the need for a plug-in. Several pieces of information to consider... (1)A drainage area of 0.32 sgmi was determined for your point of interest on Line Creek at NC Highways 191 /280 near Fletcher(station id 0344770825). (2) In Table 1 of the above referenced report, there are nearby partial-record sites and continuous-record gaging stations in vicinity of your point of interest for which low-flow discharge estimates are provided. Expressing these estimates as low-flow yields (again, flow per square mile of drainage area, or cfsm) provides some indication of the yield ranges that could potentially be applicable to your point of interest: 7Q10 low-flow yield range is from about 0.17 to 0.49 cfsm(with an average of about 0.38 cfsm) 30Q2 low-flow yield range is from about 0.39 to about 0.95 cfsm(with an average of about 0.75 cfsm) W7Q10 low-flow yield range is from about 0.25 to about 0.56 cfsm (with an average of about 0.47 cfsm) 7Q2 low-flow yield range is from about 0.31 to about 0.81 cfsm(with an average of about 0.62 cfsm) (3) The regional low-flow relations presented in the above referenced report for this hydrologic area (HA10) do not apply to drainage areas less than 0.5 sgmi. Use of the relations for this small drainage represents an extrapolation beyond the range in drainage area for which the statistical analyses were completed. file:///C/...5%20High%20Vista%20Falls%20WWTP/NC0089095/89095%202012/pdf%20&%20email/5-27-11%20USGS%20Data%20rev.txt[8/23/2023 4:56:31 PM] (4) Mean annual runoff for streams in this area is mapped in the above referenced report as being 1.5 to 2.0 cfsm. (5) Considering the above information,please be aware of the following: The data provided in the above referenced report are based on periods of record ending in advance of the drought conditions that have occurred since publication of the report. In some North Carolina basins, the low-flow conditions observed during the recent droughts (1998-2002, 2007-09) have resulted in lower low-flow statistics. No formal statewide investigation has been completed to document the changes in low-flow statistics since the droughts. However, where updated analyses have been completed for selected stations, the changes in pre-drought versus updated 7Q 10 discharges have shown varying percentage changes of decline. For instance, at the nearby long-term gaging station on Mills River near Mills River(station id 03446000, drainage area 66.7 sgmi, continuous records October 1933), the 7Q10 declined about 7 percent between the 1998 and 2009 climatic years. Based on analysis of available period of record through the 2009 climatic year, the 7Q10 and 30Q2 low-flow estimates have yield values of about 0.43 cfsm and 0.91 cfsm, respectively. Note: The climatic year is the standard annual period used for low-flow analyses at continuous-record gaging stations. It runs from April 1 through March 31 and is designated by the year in which the period begins. For example, the 2009 climatic year is from April 1, 2009, through March 31, 2010. Putting together the above pieces of information... Applying the above low-flow and mean annual runoff yields (in item#2, #4) to a drainage area of 0.32 sqmi results in following flow estimates: 7Q10 low-flow estimated range is from about 0.05 to 0.16 cfs (with an average of about 0.12 cfs) 30Q2 low-flow estimated range is from about 0.12 to about 0.30 cfs (with an average of about 0.24 cfs) W7Q10 low-flow estimated range is from about 0.08 to about 0.18 cfs (with an average of about 0.15 cfs) 7Q2 low-flow estimated range is from about 0.10 to about 0.26 cfs (with an average of about 0.20 cfs) Mean annual runoff estimated range is from about 0.5 to about 0.6 cfs Invoice information... A charge of$250.00 for accessing and processing information has been assessed to partially offset these costs. An invoice covering the processing costs for these data will be sent via regular mail from the U.S. Geological Survey to the billing address shown below. Instructions for sending your payment will be shown on the invoice. Mr. Aubrey Deaver, President A& D Water Service P.O. Box 1407 Pisgah Forest,North Carolina 28768 This information is considered preliminary and subject to revision pending further analysis as further data were to become available, and is made available through our cooperative program of water-resources investigations with the North Carolina Department of Environment and Natural Resources. Hope this information is helpful. If you have any questions regarding this information, please contact me at the phone number listed below. file:///C/...5%20High%20Vista%20Falls%20WWTP/NC0089095/89095%202012/pdf%20&%20email/5-27-11%20USGS%20Data%20rev.txt[8/23/2023 4:56:31 PM] Thank you. Curtis Weaver ************************************************************* J. Curtis Weaver, Hydrologist, PE USGS North Carolina Water Science Center 3916 Sunset Ridge Road Raleigh,NC 27607 Phone: (919) 571-4043 // Fax: (919) 571-4041 Mobile: (919) 830-6235 E-mail address --jcweaver@usgs.gov Internet address -- http://nc.water.usgs.gov/ From: R A Lenderman<ral2125@earthlink.net> To: jcweaver@usgs.gov Cc: ron.berry@ncdenr.gov, admaint@comporium.net Date: 05/03/2011 10:28 AM Subject: High Vista Falls WWTP To: Mr Curtis Weaver, USGS, Raleigh,NC From: Richard A Lenderman, P.E. Subject: NPDES Discharge Permit Application, High Vista Falls WWTP, Henderson County,NC This email is written on behalf of Mr. Aubrey Deaver, President of A& D Water Service, owner and operator of the subject WWTP. Attached is a scan of an email from you previously received by Mr. Deaver concerning low-flow characteristics for Line Creek at NC Hwy 191 at the Henderson/Buncombe County line. An NPDES permit application for High Vista WWTP has been submitted to NCDENR for a direct discharge into Line Creek immediately adjacent to the plant site. Review comments have been received from NCDENR. One comment is as follows: "Provide USGS data for 7Q 10 winter flow and QA flow (average stream flow) at the discharge location and the mouth of Line Creek(French Broad River). USGS may provide this data in terms of cfs/sq mi which would be sufficient." file:///C/...5%20High%20Vista%20Falls%20WWTP/NC0089095/89095%202012/pdf%20&%20email/5-27-11%20USGS%20Data%20rev.txt[8/23/2023 4:56:31 PM] The discharge location on Line Creek is approximately 700 feet downstream from Hwy 191 and the mouth is at French Broad River about one mile downstream from Hwy 191. We herewith request that you provide the flow characteristics for Line Creek as specified in the NCDENR review comment. Thank you very much for your assistance. If you have any questions, please email me or call at(864)415-7909. Any fee for your response should be billed to A& D Water Service, P. O. Box 1407, Pisgah Forest,NC, 28768 or email at admaint@comporium.net. Yours truly, Rick Lenderman [attachment "HighVistaUSGS0326 I O.pdf' deleted by John C Weaver/WRD/USGS/DOI] file:///C/...5%20High%20Vista%20Falls%20WWTP/NC0089095/89095%202012/pdf%20&%20email/5-27-11%20USGS%20Data%20rev.txt[8/23/2023 4:56:31 PM] 8/23/2023 IWC Based Calculations 0 Data/comment entry High Vista Falls WWTP Assume upstream TRC level = 0 0 Results NCO089095 Assume upstream Fecal laval = 0 Prepared By: RDB Check Box if WTP Fa,❑ Check Box if S�❑ Enter Design Flow(MGD): 0.045 Enter Upstream NH3-N Level (mg/L): 0.220 Enter s7Q10(cfs): 0.120 To meet conjunctive and toxicity NH3-N limits, year round Enter w7Q10 (cfs): 0.150 daily= 6.0 mg/L and winter monthly=4.0 mg/L Total Residual Chlorine Toxicity Requirment Ammonia NitrogenToxicity Requirment Total Residual Chlorine(TRC) Ammonia Nitrogen (NH3-N) Limit MAX Summer 35.0 mg/L s7Q10 (cfs) 0.120 s7Q10 (cfs) 0.120 DESIGN FLOW (MGD) 0.045 DESIGN FLOW (MGD) 0.045 DESIGN FLOW cfs 0.06975 DESIGN FLOW cfs 0.06975 STREAM WQS (µg/L) 17 STREAM WQS (mg/L) 1.0 UPS BACKGROUND LEVEL (1 0 UPSTREAM LEVEL (mg/L) 0.220 IWC (%) 36.76 IWC (%) Summer 36.76 NON-POTW Allowable Conc. (µg/L) 28 Allowable Conc. (mg/L)* 2.3 2.3 WEEKLY AVG LIMIT(mg/L) 6.9 11.5 (MONTHLY/DAILY) To meet conjunctive Fecal Coliform limits, Ammonia Nitrogen (NH3-N) Limit MAX monthly and daily= 25/100 ml Winter 35.0 mg/L Secondary Treatment Requirement (#/100 ml - MONTHLY/DAILY) w7Q10 (cfs) 0.150 Fecal Coliform Limits 100/200 DESIGN FLOW (MGD) 0.045 (If DF >331; Monitor) DESIGN FLOW cfs 0.06975 (If DF <331; Limit) JISTREAM WQS (mg/L) 1.8 Dilution Factor(DF) 2.72 UPSTREAM LEVEL (mg/L) 0.220 IWC (%) Winter 31.74 NON-POTW Allowable Conc. (mg/L)* 5.2 5.2 WEEKLY AVG LIMIT(mg/L) 15.6 26.0 (MONTHLY/DAILY) *MONTHLY AVG LIMIT Check other limit docs such as basin plan or model 8/23/2023 • • •� 035°26'41.62'"P-1 082°34'06.81"W t - 4 \�� EL 2040 ft REG EL • B k hoa s �, � loop •• EL 2120 ft in$ VA • EL 2100 ft L�� ' _♦ Fanner rid w (� f i� fJ 1 1 ri _`�' �s! r1�s •��'a�h.�� _ Vim`•`` \\ �� LEVEL B MODEL INFORMATION WINTER Facility Information Flow Information Facility Name High Vista Falls WWTP Topo Quad FBNE Skyland, NC NPDES No. NC0089095 USGS sta. # 00344770825 USGS Data at Outfall Mouth Line Creek to Line Creek Type of wastewater 100% Domestic Date of flow estimate: 6/3/2011 6/3/2011 Facility status Existing, non-discharge Drainage Area, mi : 1.55 0.32 Receiving stream Line Creek Summer7Q10, cfs: 0.60 0.12 Stream class C Winter7Q10, cfs: 0.70 0.15 Subbasin 04-03-02 Average flow, cfs: 2.65 0.55 A.U. Number 6-59 30Q2, cfs: 1.20 SUMMER 0.24 County Henderson IWC at discharge, %: 36.8 31.7 Regional Office Asheville Model B File Name: VISTA5S.DT2 Seasonal Bases Winter Segment/Reach 1 2 3 4 5 6 Total Reach Length of reach (mi) 0.1100 0.3000 0.0700 0.3600 0.6800 0.0900 1.6100 Incremental length 0.0550 0.1500 0.0350 0.1200 0.1700 0.0450 Waste characteristics Facility Name High Vista Falls WWTP Rosewood MHP WWTP Flow (MGD) 0.045 0.03 BOD (mg/1, monthly avg) 5 30 BOD Multiplier 1.5 1.5 CBOD 7.5 45 NH3-N (mg/I, monthly avg) 4 14 NH3-N multiplier 4.5 4.5 NBOD 18 63 DO (mg/I, daily avg) 5.0 Background DO (mg/1) 9.7* 9.7* 9.7* 9.7* 9.7* 9.7* Runoff charactericstics w7Q10 (cfs/mi) 0.34 0.34 0.34 0.34 0.34 0.34 QA (cfs/mi) 1.30 1.30 1.30 1.30 1.30 1.30 CBOD (mg/1) 2 2 2 2 2 2 NBOD (mg/1) 1 1 1 1 1 1 DO (mg/1) 9.7* 9.7* 9.7* 9.7* 9.7* 9.7* Tributary characteristics Tributary name s7Q10 (cfs/mi) QA(cfs/mi) CBOD (mg/1) 2 2 2 2 2 2 NBOD (mg/1) 1 1 1 1 1 1 DO (mg/1) 9.7* 9.7* 9.7* 9.7* 9.7* 9.7* Slope (ft/ mile) 85.99 66.88 45.22 45.22 26.67 62 NOTE: * DEFINED BY MODEL 90% SATURATION HIGH VISTA FALLS BOD LIMIT BAT TO MINIMIZE INTERACTION WITH ROSEWOOD HIGH VISTA FALLS NH3-N LIMIT BAT TO MINIMIZE INTERACTION WITH ROSEWOOD ROSEWOOD MHP BOD and NH3-N LIMITS BASED ON PERMIT NC0075680 RUNOFF QA= (2.65 CFS - 0.55 CFS) = 1.61 MI = 1.30 RUNOFF 7Q10s = (0.7 CFS - 0.15 CFS) = 1.61 MI = 0.34 RUNOFF 30Q2 = (1.2 CFS - 0.24 CFS) = 1.61 MII = 0.60 LEVEL B MODEL INFORMATION SUMMER Facility Information Flow Information Facility Name High Vista Falls WWTP Topo Quad FBNE Skyland, NC NPDES No. NC0089095 USGS sta. # 00344770825 USGS Data at Outfall Mouth Line Creek to Line Creek Type of wastewater 100% Domestic Date of flow estimate: 6/3/2011 6/3/2011 Facility status Existing, non-discharge Drainage Area, mi : 1.55 0.32 Receiving stream Line Creek Summer7Q10, cfs: 0.60 0.12 Stream class C Winter7Q10, cfs: 0.70 0.15 Subbasin 04-03-02 Average flow, cfs: 2.65 0.55 A.U. Number 6-59 30Q2, cfs: 1.20 SUMMER 0.24 County Henderson IWC at discharge, %: 36.8 31.7 Regional Office Asheville Model B File Name: VISTA5S.DT2 Seasonal Bases Summer Segment/Reach 1 2 3 4 5 6 Total Reach Length of reach (mi) 0.1100 0.3000 0.0700 0.3600 0.6800 0.0900 1.6100 Incremental length 0.0550 0.1500 0.0350 0.1200 0.1700 0.0450 Waste characteristics Facility Name High Vista Falls WWTP Rosewood MHP WWTP Flow (MGD) 0.045 0.03 BOD (mg/1, monthly avg) 5 30 BOD Multiplier 1.5 1.5 CBOD 7.5 45 NH3-N (mg/I, monthly avg) 2 5.5 NH3-N multiplier 4.5 4.5 NBOD 9 24.75 DO (mg/I, daily avg) 5.0 Background DO (mg/1) 7.72* 7.72* 7.72* 7.72* 7.72* 7.72* Runoff charactericstics s7Q10 (cfs/mi) 0.30 0.30 0.30 0.30 0.30 0.30 QA (cfs/mi) 1.30 1.30 1.30 1.30 1.30 1.30 CBOD (mg/1) 2 2 2 2 2 2 NBOD (mg/1) 1 1 1 1 1 1 DO (mg/1) 7.72* 7.72* 7.72* 7.72* 7.72* 7.72* Tributary characteristics Tributary name s7Q10 (cfs/mi) QA(cfs/mi) CBOD (mg/1) 2 2 2 2 2 2 NBOD (mg/1) 1 1 1 1 1 1 DO (mg/1) 7.72* 7.72* 7.72* 7.72* 7.72* 7.72* Slope (ft/ mile) 85.99 66.88 45.22 45.22 26.67 62 NOTE: * DEFINED BY MODEL 90% SATURATION HIGH VISTA FALLS BOD LIMIT BAT TO MINIMIZE INTERACTION WITH ROSEWOOD HIGH VISTA FALLS NH3-N LIMIT BAT TO MINIMIZE INTERACTION WITH ROSEWOOD ROSEWOOD MHP BOD and NH3-N LIMITS BASED ON PERMIT NC0075680 RUNOFF QA = (2.65 CFS - 0.55 CFS) = 1.61 MI = 1.30 RUNOFF 7Q10s = (0.6 CFS - 0.12 CFS) = 1.61 MI = 0.30 RUNOFF 30Q2 = (1.2 CFS - 0.24 CFS) = 1.61 MII = 0.60 Facility Name High Vista Falls WWTP NPDES No. NCO089095 cum elevation elevation distance distance slope (ft) change (ft) (mi) ft/mi 2120 Start High Vista Discharge 2100 20 0.2326 0.23 85.99 EL= 2109 ft 2080 20 0.2991 0.53 66.88 Rosewood Discharge 0.23 85.99 2060 20 0.4422 0.97 45.22 EL= 2077 ft 0.53 66.88 2040 20 0.6741 1.65 29.67 0.97 45.22 2031.3 9 0.0922 1.74 94.32 French Broad River 1.65 29.67 1.74 94.32 Seriesl Log. (Seriesl) 100 --- ---T-----------r-----r----�r HIGH VISTA FALLS PROPOSED 90 ---- ----�-- --- -i-----i-----+----- -----F-----F----; 80 ----I - --i-----i + 1-----F-----E----- ---- ----A-----i-----4-----4-----f-----F------F----' � 70 ----t----� +----- -----;---- 1 ROSEWOOD MI HP1 WWTP --- E 60 ----1 +;-----+-----III T� I I I I I I I I Y I I I 1 I I I I I �� I I I I I I I I I I I 50 ----y----J-----J-----J-----L----- -L-----L-----L----y----J-----J-----J-----•-----L_ � _ _ - I I I I I I � I � I I I I I I I I II Q I I I I I I I I I 40 30 ----------------- ----- ----- LINE CREEK -- --------- ----- ----- ---- --I o 20 -- I I I I I I I I I I I I I I I --I --I l l l i l I l l t r I I I I I I I I I I I I I I � I I 10 I I I I I I I I I I I I I � 0 � 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 Distance from 2120 ft EL, mile SUMMER WINTER Ammonia as nitrogen (NH3-N) Ammonia as nitrogen (NH3-N) 7Q10(cfs) 0.12 7Q10(cfs) 0.15 Design Flow(MGD) 0.045 Design Flow(MGD) 0.045 Design Flow(cfs) 0.06975 Design Flow (cfs) 0.06975 Stream Std (mg/1) 1.0 Stream Std (mg/1) 1.8 ups Bckgrnd Lvl (mg/1) 0.22 ups Bckgrnd Lvl (mg/1) 0.22 IWC (%) 36.759 IWC (%) 31.741 Allow Conc. (mg/1) 2.3 Monthly Avg Allow Conc. (mg/1) 5.2 Monthly Avg Public (mg/1) 7.0 Weekly Avg Public (mg/1) 15.6 Weekly Avg Private (mg/1) 11.7 Daily Max Private (mg/1) 26.0 Daily Max Resdual Chlorine 7Q 10(cfs) 0.12 Design Flow(MGD) 0.045 Design Flow(cfs) 0.06975 Stream Std (ug/1) 17.0 ups Bckgrnd Lvl (ug/1) 0.0 IWC (%) 36.759 Allow Conc. (ug/1) 28 Per Curtis Weaver USGS Lat/Long High Vista Falls Outfall drainage area = 0.32 mil 7Q10s = 0.12 cfs 7Q 10w= 0.15 cfs 30Q2 = 0.24 cfs QA= 0.55 cfs USGS Station 0344770875 Mouth of Line Creek drainage area = 1.55 mil 7Q10s = 0.6 cfs 7Q 10w= 0.7 cfs 30Q2 = 1.2 cfs QA= 2.65 cfs LEVEL B MODEL INFORMATION WINTER Facility Information Flow Information Facility Name High Vista Falls WWTP Topo Quad F8NE Skyland, NC NPDES No. NCO089095 USGS sta. # 00344770825 USGS Data at Outfall Mouth Line Creek to Line Creek Type of wastewater 100% Domestic Date of flow estimate: 6/3/2011 6/3/2011 Facility status Existing, non-discharge Drainage Area, mi : 1.55 0.32 Receiving stream Line Creek Summer7Q10, cfs: 0.60 0.12 Stream class C Winter7Q10, cfs: 0.70 0.15 Subbasin 04-03-02 Average flow, cfs: 2.65 0.55 A.U. Number 6-59 30Q2, cfs: 1.20 0.24 SUMMER R County Henderson IWC at discharge, %: 36.8 31.7 Regional Office Asheville Model B File Name:1 VISTA4W.DT2 VISTAWC.DT2 Seasonal Bases Winter Segment/Reach 1 2 3 4 5 6 Total Reach Length of reach (mi) 0.1066 0.2990 0.0720 0.3708 0.6740 0.0920 1.6144 Incremental length 0.0533 0.1495 0.0360 0.0927 0.1685 0.0460 Waste characteristics Facility Name High Vista Falls WWTP Rosewood MHP WWTP Flow (MGD) 0.045 0.03 BOD (mg/I, monthly avg) 10 30 BOD Multiplier 2 2 CBOD 20 60 NH3-N (mg/l, monthly avg) 4 14 NH3-N multiplier 4.5 4.5 NBOD 18 63 DO (mg/I, daily avg) 5.0 Background DO (mg/1) 9.7* 9.7* 9.7* 9.7* 9.7* 9.7* Runoff charactericstics w7010 (cfs/mi) 0.34 0.34 0.34 0.34 0.34 0.34 QA(cfs/mi) 1.30 1.30 1.30 1.30 1.30 1.30 CBOD (mg/1) 2 2 2 2 2 2 NBOD (mg/1) 1 1 1 1 1 1 DO (mg/1) 9.7* 9.7* 9.7* 9.7* 9.7* 9.7* Tributary characteristics Tributary name s7Q10 (cfs/mi) QA(cfs/mi) CBOD (mg/1) 2 2 2 2 2 2 NBOD (mg/1) 1 1 1 1 1 1 DO (mg/1) 9.7* 9.7* 9.7* 9.7* 9.7* 9.7* Slope (ft/ mile) 85.99 66.88 45.22 45.22 26.67 62 NOTE: * DEFINED BY MODEL 90% SATURATION HIGH VISTA FALLS BOD and NH3-N LIMITS BASED ON RECLAIM LIMITS WQ0015929 ROSEWOOD MHP BOD and NH3-N LIMITS BASED ON PERMIT NCO075680 RUNOFF QA = (2.65 CFS - 0.55 CFS) - 1.6144 MI = 1.30 RUNOFF 7Q10s = (0.7 CFS - 0.15 CFS) - 1.6144 MI = 0.34 RUNOFF 30Q2 = (1.2 CFS - 0.24 CFS) - 1.6144 Mll = 0.59 LEVEL B MODEL INFORMATION SUMMER Facility Information Flow Information Facility Name High Vista Falls WWTP Topo Quad FBNE Skyland, NC NPDES No. NC0089095 USGS sta. # 00344770825 USGS Data at Outfall Mouth Line Creek to Line Creek Type of wastewater 100% Domestic Date of flow estimate: 6/3/2011 6/3/2011 Facility status Existing, non-discharge Drainage Area, mi : 1.55 0.32 Receiving stream Line Creek Summer7Q10, cfs: 0.60 0.12 Stream class C Winter7Q10, cfs: 0.70 0.15 Subbasin 04-03-02 Average flow, cfs: 2.65 0.55 A.U. Number 6-59 30Q2, cfs: 1.20 0.24 SUMMER R County Henderson IWC at discharge, %: 36.8 31.7 Regional Office Asheville Model B File Name: VISTA4S.DT2 VISTASC.DT2 Seasonal Bases Summer Segment/Reach 1 2 3 4 5 6 Total Reach Length of reach (mi) 0.1066 0.2990 0.0720 0.3708 0.6740 0.0920 1 1.6144 Incremental length 0.0533 0.1495 0.0360 0.0927 0.1685 0.0460 Waste characteristics Facility Name High Vista Falls WWTP Rosewood MHP WWTP Flow (MGD) 0.045 0.03 BOD (mg/I, monthly avg) 10 30 BOD Multiplier 2 2 CBOD 20 60 NH3-N (mg/l, monthly avg) 2.3 5.5 NH3-N multiplier 4.5 4.5 NBOD 10.35 24.75 DO (mg/I, daily avg) 5.0 Background DO (mg/1) 7.72* 7.72* 7.72* 7.72* 7.72* 7.72* Runoff charactericstics s7010 (cfs/mi) 0.30 0.30 0.30 0.30 0.30 0.30 QA(cfs/mi) 1.30 1.30 1.30 1.30 1.30 1.30 CBOD (mg/1) 2 2 2 2 2 2 NBOD (mg/1) 1 1 1 1 1 1 DO (mg/1) 7.72* 7.72* 7.72* 7.72* 7.72* 7.72* Tributary characteristics Tributary name s7Q10 (cfs/mi) QA(cfs/mi) CBOD (mg/1) 2 2 2 2 2 2 NBOD (mg/1) 1 1 1 1 1 1 DO (mg/1) 7.72* 7.72* 7.72* 7.72* 7.72* 7.72* Slope (ft/ mile) 85.99 66.88 45.22 45.22 26.67 62 NOTE: * DEFINED BY MODEL 90% SATURATION HIGH VISTA FALLS BOD LIMIT BASED ON RECLAIM LIMITS WQ0015929 HIGH VISTA FALLS NH3-N LIMIT BASED ON TOXICITY CALCULATION ROSEWOOD MHP BOD and NH3-N LIMITS BASED ON PERMIT NC0075680 RUNOFF QA = (2.65 CFS - 0.55 CFS) = 1.6144 MI = 1.30 RUNOFF 7Q10s = (0.6 CFS - 0.12 CFS) - 1.6144 MI = 0.30 RUNOFF 30Q2 = (1.2 CFS - 0.24 CFS) = 1.6144 MII = 0.59 Facility Name High Vista Falls WWTP NPDES No. NCO089095 cum elevation elevation distance distance slope (ft) change (ft) (mi) ft/mi 2120 Start High Vista Discharge 2100 20 0.2326 0.23 85.99 EL= 2109 ft 2080 20 0.2991 0.53 66.88 Rosewood Discharge 0.23 85.99 2060 20 0.4422 0.97 45.22 EL= 2077 ft 0.53 66.88 2040 20 0.6741 1.65 29.67 0.97 45.22 2031.3 9 0.0922 1.74 94.32 French Broad River 1.65 29.67 1.74 94.32 Seriesl Log. (Seriesl) 100 --- ---T-----------r-----r----�r HIGH VISTA FALLS PROPOSED 90 ---- ----�-- --- -i-----i-----+----- -----F-----F----; 80 ----I - --i-----i + 1-----F-----E----- ---- ----A-----i-----4-----4-----f-----F------F----' � 70 ----t----� +----- -----;---- 1 ROSEWOOD MI HP1 WWTP --- E 60 ----1 +;-----+-----III T� I I I I I I I I Y I I I 1 I I I I I �� I I I I I I I I I I I 50 ----y----J-----J-----J-----L----- -L-----L-----L----y----J-----J-----J-----•-----L_ � _ _ - I I I I I I � I � I I I I I I I I II Q I I I I I I I I I 40 30 ----------------- ----- ----- LINE CREEK -- --------- ----- ----- ---- --I o 20 -- I I I I I I I I I I I I I I I --I --I l l l i l I l l t r I I I I I I I I I I I I I I � I I 10 I I I I I I I I I I I I I � 0 � 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 Distance from 2120 ft EL, mile SUMMER WINTER Ammonia as nitrogen (NH3-N) Ammonia as nitrogen (NH3-N) 7Q10(cfs) 0.12 7Q10(cfs) 0.15 Design Flow(MGD) 0.045 Design Flow(MGD) 0.045 Design Flow(cfs) 0.06975 Design Flow (cfs) 0.06975 Stream Std (mg/1) 1.0 Stream Std (mg/1) 1.8 ups Bckgrnd Lvl (mg/1) 0.22 ups Bckgrnd Lvl (mg/1) 0.22 IWC (%) 36.759 IWC (%) 31.741 Allow Conc. (mg/1) 2.3 Monthly Avg Allow Conc. (mg/1) 5.2 Monthly Avg Public (mg/1) 7.0 Weekly Avg Public (mg/1) 15.6 Weekly Avg Private (mg/1) 11.7 Daily Max Private (mg/1) 26.0 Daily Max Resdual Chlorine 7Q 10(cfs) 0.12 Design Flow(MGD) 0.045 Design Flow(cfs) 0.06975 Stream Std (ug/1) 17.0 ups Bckgrnd Lvl (ug/1) 0.0 IWC (%) 36.759 Allow Conc. (ug/1) 28 Per Curtis Weaver USGS Lat/Long High Vista Falls Outfall drainage area = 0.32 mil 7Q10s = 0.12 cfs 7Q 10w= 0.15 cfs 30Q2 = 0.24 cfs QA= 0.55 cfs USGS Station 0344770875 Mouth of Line Creek drainage area = 1.55 mil 7Q10s = 0.6 cfs 7Q 10w= 0.7 cfs 30Q2 = 1.2 cfs QA= 2.65 cfs Seg# I Reach # Seg Mi D.O. 1 CBOD I NBOD Flow Seg# Reach# Seg Mi D.O. CBOD NBOD Flow 1 1 0.00 6.72 4.02 3.94 0.19 -0.01 7.72 2 1 Upstream 1 1 0.06 7.51 3.84 3.66 0.21 1 1 0 6.72 4.02 3.94 0.19 1 1 0.11 7.93 3.69 3.42 0.22 1 1 0.06 7.51 3.84 3.66 0.21 1 2 0.11 7.93 3.69 3.42 0.22 1 1 0.11 7.93 3.69 3.42 0.22 1 2 0.26 8.24 3.30 2.91 0.27 1 2 0.11 7.93 3.69 3.42 0.22 1 2 0.41 8.34 3.01 2.54 0.31 1 2 0.26 8.24 3.3 2.91 0.27 1 3 0.41 8.34 3.01 2.54 0.31 1 2 0.41 8.34 3.01 2.54 0.31 1 3 0.45 8.33 2.96 2.47 0.32 1 3 0.41 8.34 3.01 2.54 0.31 1 3 0.48 8.32 2.91 2.40 0.33 1 3 0.45 8.33 2.96 2.47 0.32 1 4 0.48 7.30 8.06 5.13 0.38 1 3 0.48 8.32 2.91 2.4 0.33 1 4 0.60 7.71 7.37 4.65 0.42 1 4 0.48 7.3 8.06 5.13 0.38 1 4 0.72 7.93 6.80 4.25 0.45 1 4 0.6 7.71 7.37 4.65 0.42 1 4 0.84 8.05 6.31 3.91 0.49 1 4 0.72 7.93 6.8 4.25 0.45 1 5 0.84 8.05 6.31 3.91 0.49 1 4 0.84 8.05 6.31 3.91 0.49 1 5 1.01 8.03 5.76 3.49 0.54 1 5 0.84 8.05 6.31 3.91 0.49 1 5 1.18 8.04 5.30 3.15 0.59 1 5 1.01 8.03 5.76 3.49 0.54 1 5 1.35 8.07 4.92 2.87 0.64 1 5 1.18 8.04 5.3 3.15 0.59 1 5 1.52 8.10 4.59 2.62 0.69 1 5 1.35 8.07 4.92 2.87 0.64 1 5 1.52 8.1 4.59 2.62 0.69 DO WQS, minimum NBOD WQS, maxmum 5 4.5 5 4.5 Seg# I Reach # Seg Mi D.O. 1 CBOD I NBOD Flow Seg# Reach# Seg Mi D.O. CBOD NBOD Flow 1 1 0.00 8.21 3.75 6.40 0.22 -0.01 9.7 2 1 Upstream 1 1 0.06 9.15 3.58 5.94 0.24 1 1 0 8.21 3.75 6.4 0.22 1 1 0.11 9.71 3.44 5.56 0.26 1 1 0.06 9.15 3.58 5.94 0.24 1 2 0.11 9.71 3.44 5.56 0.26 1 1 0.11 9.71 3.44 5.56 0.26 1 2 0.26 10.28 3.15 4.74 0.31 1 2 0.11 9.71 3.44 5.56 0.26 1 2 0.41 10.48 2.93 4.15 0.36 1 2 0.26 10.28 3.15 4.74 0.31 1 3 0.41 10.48 2.93 4.15 0.36 1 2 0.41 10.48 2.93 4.15 0.36 1 3 0.45 10.47 2.89 4.03 0.37 1 3 0.41 10.48 2.93 4.15 0.36 1 3 0.48 10.47 2.85 3.93 0.38 1 3 0.45 10.47 2.89 4.03 0.37 1 4 0.48 9.34 7.41 10.32 0.43 1 3 0.48 10.47 2.85 3.93 0.38 1 4 0.60 9.78 6.86 9.42 0.47 1 4 0.48 9.34 7.41 10.32 0.43 1 4 0.72 10.04 6.39 8.66 0.51 1 4 0.6 9.78 6.86 9.42 0.47 1 4 0.84 10.19 5.99 8.01 0.55 1 4 0.72 10.04 6.39 8.66 0.51 1 5 0.84 10.19 5.99 8.01 0.55 1 4 0.84 10.19 5.99 8.01 0.55 1 5 1.01 10.21 5.54 7.23 0.61 1 5 0.84 10.19 5.99 8.01 0.55 1 5 1.18 10.23 5.16 6.59 0.67 1 5 1.01 10.21 5.54 7.23 0.61 1 5 1.35 10.26 4.84 6.05 0.73 1 5 1.18 10.23 5.16 6.59 0.67 1 5 1.52 10.29 4.57 5.59 0.78 1 5 1.35 10.26 4.84 6.05 0.73 1 5 1.52 10.29 4.57 5.59 0.78 DO WQS, minimum NBOD WQS, maxmum 5 8.1 5 8.1 Date:2/15/12 LEVEL B MODEL PREDICTION pb: rdb High Vista Falls WWTP 0.45 MGD Level B Model Prediction for Line Creek - Summer 9.0 ----------------------------------------------------------------------- ---------------------- o D.O. DO WQS, minimum E3 NBOD NBOD WQS, maxmum 8.0 ------- ----------------- ------------ -- - --------- -------- 0 7.0 0 //--------------------- --------------------------------------------------------------------------- 0_ _ Z 6.0 m-------------------------E-------------------------------------------------------------------------- < CA 5.0 rt t v tw E N UR 4.0 ------------------------- ------------------ ------------------------------------------------------- 3.0 ------------ --------------------------------------------------------- ----- 2.0 ------------------------------------------------------------------------------------------------------ 1.0 0.0 1 T 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile Level B Model Prediction for Line Creek - Winter 12.0 D.O. - DO WQS, minimum -NBOD NBOD WQS, maxmum 11.0 10.0 - 9.0 8.0 oo' 7.0 J CLO 6.0 E 5.0 4.0 3.0 2.0 1.0 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile PI SUMMER BOD = 5 mg/L, NH3-N = 2 mg/L Seg# I Reach# Seg Mi D.O. CBOD I NBOD Flow 1 1 0.00 6.72 4.02 3.94 0.19 1 1 0.06 7.51 3.84 3.66 0.21 1 1 0.11 7.93 3.69 3.42 0.22 1 2 0.11 7.93 3.69 3.42 0.22 1 2 0.26 8.24 3.30 2.91 0.27 1 2 0.41 8.34 3.01 2.54 0.31 1 3 0.41 8.34 3.01 2.54 0.31 1 3 0.45 8.33 2.96 2.47 0.32 1 3 0.48 8.32 2.91 2.40 0.33 1 4 0.48 7.30 8.06 5.13 0.38 1 4 0.60 7.71 7.37 4.65 0.42 1 4 0.72 7.93 6.80 4.25 0.45 1 4 0.84 8.05 6.31 3.91 0.49 1 5 0.84 8.05 6.31 3.91 0.49 1 5 1.01 8.03 5.76 3.49 0.54 1 5 1.18 8.04 5.30 3.15 0.59 1 5 1.35 8.07 4.92 2.87 0.64 1 5 1.52 8.10 4.59 2.62 0.69 PI SUMMER BOD = 10 mg/L, NH3-N = 2 mg/L Seg# I Reach# Seg Mi I D.O. CBOD I NBOD Flow 1 1 0.00 6.72 6.78 3.94 0.19 1 1 0.06 7.50 6.37 3.66 0.21 1 1 0.11 7.91 6.01 3.42 0.22 1 2 0.11 7.91 6.01 3.42 0.22 1 2 0.26 8.20 5.17 2.91 0.27 1 2 0.41 8.30 4.57 2.54 0.31 1 3 0.41 8.30 4.57 2.54 0.31 1 3 0.45 8.29 4.45 2.47 0.32 1 3 0.48 8.27 4.35 2.40 0.33 1 4 0.48 7.26 9.32 5.13 0.38 NBOD SHOULD NOT EXCEED 4.5 1 4 0.60 7.68 8.50 4.65 0.42 1 4 0.72 7.90 7.82 4.25 0.45 1 4 0.84 8.02 7.23 3.91 0.49 1 5 0.84 8.02 7.23 3.91 0.49 1 5 1.01 8.00 6.57 3.49 0.54 1 5 1.18 8.01 6.03 3.15 0.59 1 5 1.35 8.04 5.57 2.87 0.64 1 5 1.52 8.07 5.18 2.62 0.69 DO SHOLULD NOT BE LESS THAN 5 BOD = 10 mg/L, NH3-N = 1.1 mg/L Seg# I Reach# Seg Mi I D.O. 1 CBOD I NBOD Flow 1 1 0.00 6.72 6.78 2.51 0.19 1 1 0.06 7.51 6.37 2.36 0.21 1 1 0.11 7.93 6.01 2.23 0.22 1 2 0.11 7.93 6.01 2.23 0.22 1 2 0.26 8.23 5.17 1.95 0.27 1 2 0.41 8.33 4.57 1.75 0.31 1 3 0.41 8.33 4.57 1.75 0.31 1 3 0.45 8.31 4.45 1.71 0.32 1 3 0.48 8.30 4.35 1.67 0.33 1 4 0.48 7.29 9.32 4.50 0.38 1 4 0.60 7.70 8.50 4.09 0.42 1 4 0.72 7.92 7.82 3.74 0.45 1 4 0.84 8.04 7.23 3.45 0.49 1 5 0.84 8.04 7.23 3.45 0.49 1 5 1.01 8.02 6.57 3.09 0.54 1 5 1.18 8.04 6.03 2.80 0.59 1 5 1.35 8.06 5.57 2.56 0.64 1 5 1.52 8.09 5.18 2.35 0.69 0 WINTER BOD = 5 mg/L, NH3-N =4 mg/L Seg# I Reach# Seg Mi D.O. CBOD I NBOD Flow 1 1 0.00 8.21 3.75 6.40 0.22 1 1 0.06 9.15 3.58 5.94 0.24 1 1 0.11 9.71 3.44 5.56 0.26 1 2 0.11 9.71 3.44 5.56 0.26 1 2 0.26 10.28 3.15 4.74 0.31 1 2 0.41 10.48 2.93 4.15 0.36 1 3 0.41 10.48 2.93 4.15 0.36 1 3 0.45 10.47 2.89 4.03 0.37 1 3 0.48 10.47 2.85 3.93 0.38 1 4 0.48 9.34 7.41 10.32 0.43 1 4 0.60 9.78 6.86 9.42 0.47 1 4 0.72 10.04 6.39 8.66 0.51 1 4 0.84 10.19 5.99 8.01 0.55 1 5 0.84 10.19 5.99 8.01 0.55 1 5 1.01 10.21 5.54 7.23 0.61 1 5 1.18 10.23 5.16 6.59 0.67 1 5 1.35 10.26 4.84 6.05 0.73 1 5 1.52 10.29 4.57 5.59 0.78 0 WINTER BOD = 10 mg/L, NH3-N =4 mg/L Seg# I Reach# Seg Mi I D.O. CBOD I NBOD Flow 1 1 0.00 8.21 6.13 6.40 0.22 1 1 0.06 9.14 5.76 5.94 0.24 1 1 0.11 9.69 5.45 5.56 0.26 1 2 0.11 9.69 5.45 5.56 0.26 1 2 0.26 10.25 4.79 4.74 0.31 1 2 0.41 10.45 4.31 4.15 0.36 1 3 0.41 10.45 4.31 4.15 0.36 1 3 0.45 10.45 4.22 4.03 0.37 1 3 0.48 10.44 4.14 3.93 0.38 1 4 0.48 9.31 8.56 10.32 0.43 NBOD SHOULD NOT EXCEED 8.1 1 4 0.60 9.76 7.89 9.42 0.47 1 4 0.72 10.02 7.33 8.66 0.51 1 4 0.84 10.17 6.86 8.01 0.55 1 5 0.84 10.17 6.86 8.01 0.55 1 5 1.01 10.19 6.31 7.23 0.61 1 5 1.18 10.21 5.85 6.59 0.67 1 5 1.35 10.24 5.47 6.05 0.73 1 5 1.52 10.27 5.14 5.59 0.78 DO SHOLULD NOT BE LESS THAN 5 BOD = 10 mg/L, NH3-N = 0.8 mg/L Seg# I Reach# Seg Mi I D.O. 1 CBOD I NBOD Flow 1 1 0.00 8.21 6.13 1.86 0.22 1 1 0.06 9.15 5.76 1.78 0.24 1 1 0.11 9.72 5.45 1.72 0.26 1 2 0.11 9.72 5.45 1.72 0.26 1 2 0.26 10.29 4.79 1.58 0.31 1 2 0.41 10.49 4.31 1.47 0.36 1 3 0.41 10.49 4.31 1.47 0.36 1 3 0.45 10.48 4.22 1.45 0.37 1 3 0.48 10.48 4.14 1.43 0.38 1 4 0.48 9.35 8.56 8.10 0.43 1 4 0.60 9.80 7.89 7.41 0.47 1 4 0.72 10.05 7.33 6.83 0.51 1 4 0.84 10.21 6.86 6.33 0.55 1 5 0.84 10.21 6.86 6.33 0.55 1 5 1.01 10.23 6.31 5.74 0.61 1 5 1.18 10.25 5.85 5.25 0.67 1 5 1.35 10.28 5.47 4.83 0.73 1 5 1.52 10.31 5.14 4.48 0.78 Date:4/11/12 HIGH VISTA FALLS WWTP NCO089095 pb: rdb BOD= 10.0 mg/L, DO = 5.0 mg/L, Flow=0.045 MGD NH3-N = 2.0 mg/L: Level B Model Prediction for Line Creek- Summer 9.0 ------------- --------------------------------- o D.O. DO WQS, minimum E3 NBOD NBOD WQS, maxmum 8.0 ----- - ---------------------------- - -- ------ ------------ 7.0 -------------------*---------------------------------------------------------- 0 = Q 6.0 ------------------- ---------------------------------------------------------- G = J5.0 ------------ tin E 4.0 - ------------------- ------------- ------ 3.0 --------- ------------------------------------------- ------------ 2.0 -------------------------------------------------------------------------------- 1.0 -------------------------------------------------------------------------------- 0.0 1 1 1 � 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile Seg# Reach# Seg Mi D.O. CBOD NBOD Flow 1 1 0.00 6.72 6.78 3.94 0.194ENHIGH VISTA FALLS WWTP 1 1 0.06 7.50 6.37 3.66 0.21 1 1 0.11 7.91 6.01 3.42 0.22 1 2 0.11 7.91 6.01 3.42 0.22 1 2 0.26 8.20 5.17 2.91 0.27 1 2 0.41 8.30 4.57 2.54 0.31 1 3 0.41 8.30 4.57 2.54 0.31 1 3 0.45 8.29 4.45 2.47 0.32 1 3 0.48 8.27 4.35 2.40 0.33 1 4 0.48 7.26 9.32 5.13 0.384NEROSEWOOD MHP WWTP 1 4 0.60 7.68 8.50 4.65 0.42 Flow=0.03 MGD 1 4 0.72 7.90 7.82 4.25 0.45 NH3-N = 5.5 mg/L 1 4 0.84 8.02 7.23 3.91 0.49 BOD= 30.0 mg/L 1 5 0.84 8.02 7.23 3.91 0.49 1 5 1.01 8.00 6.57 3.49 0.54 1 5 1.18 8.01 6.03 3.15 0.59 1 5 1.35 8.04 5.57 2.87 0.64 1 5 1.52 8.07 5.18 2.62 0.69 Date:4/11/12 HIGH VISTA FALLS WWTP NCO089095 pb: rdb BOD= 10.0 mg/L, DO = 5.0 mg/L, Flow=0.045 MGD N143-N= 1.1 mg/L: Level B Model Prediction for Line Creek- Summer 9.0 -------------------------- ----------------------------- D.0. DO WQS, minimum E3 NBOD NBOD WQS, maxmum 8.0 ----- -------------�6--------- -- --- ---- ------ ------ ------------ o 0 fD 7.0 --------------------*---------------------------------------------------------- 0 0 = Q 6.Ooa' ------------------- ---------------------------------------------------------- G = J 5.0 '14 ------------- W tin E 4.0 �, ---- ------ -------------------- 3.0 -------------------------------------------- -------------------------------- s 2.0 --------- --------- ---------------------------------------------------------- 1.0 -------------------------------------------------------------------------------- 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile Seg# Reach# Seg Mi D.O. CBOD NBOD Flow 1 1 0.00 6.72 6.78 2.51 0.19 4NE HIGH VISTA FALLS WWTP 1 1 0.06 7.51 6.37 2.36 0.21 1 1 0.11 7.93 6.01 2.23 0.22 1 2 0.11 7.93 6.01 2.23 0.22 1 2 0.26 8.23 5.17 1.95 0.27 1 2 0.41 8.33 4.57 1.75 0.31 1 3 0.41 8.33 4.57 1.75 0.31 1 3 0.45 8.31 4.45 1.71 0.32 1 3 0.48 8.30 4.35 1.67 0.33 1 4 0.48 7.29 9.32 4.50 0.38 ROSEWOOD MHP WWTP 1 4 0.60 7.70 8.50 4.09 0.42 Flow=0.03 MGD 1 4 0.72 7.92 7.82 3.74 0.45 NH3-H = 5.5 mg/L 1 4 0.84 8.04 7.23 3.45 0.49 BOD= 30.0 mg/L 1 5 0.84 8.04 7.23 3.45 0.49 1 5 1.01 8.02 6.57 3.09 0.54 1 5 1.18 8.04 6.03 2.80 0.59 1 5 1.35 8.06 5.57 2.56 0.64 1 5 1.52 8.09 5.18 2.35 0.69 Date:4/11/12 HIGH VISTA FALLS WWTP NCO089095 pb: rdb BOD = 5.0 mg/L, DO=5.0 mg/L, Flow= 0.045 MGD N143-N=2.0 mg/L: Level B Model Prediction for Line Creek- Summer 9.0 ------------- ----------------------------- o D.O. DO WQS, minimum E3 NBOD NBOD WQS, maxmum 8.0 ----- ------------- - - ------ ------ ------- ------ ------------ ► p Vf 7.0 -------------------;E----------------------------------------------------------- 0 0 _ CL 6.0 ------------------- ---------------------------------------------------------- J5.0 ------------ tin E 4.0 - ------------------- ------------- ------ -------------------- 3.0 --------- ------------------------------------------- ------------ 2.0 -------------------------------------------------------------------------------- 1.0 -------------------------------------------------------------------------------- 0.0 1 1 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile Seg# Reach# Seg Mi D.O. CBOD NBOD Flow 1 1 0.00 6.72 4.02 3.94 0.19 THIGH VISTA FALLS WWTP 1 1 0.06 7.51 3.84 3.66 0.21 1 1 0.11 7.93 3.69 3.42 0.22 1 2 0.11 7.93 3.69 3.42 0.22 1 2 0.26 8.24 3.30 2.91 0.27 1 2 0.41 8.34 3.01 2.54 0.31 1 3 0.41 8.34 3.01 2.54 0.31 1 3 0.45 8.33 2.96 2.47 0.32 1 3 0.48 8.32 2.91 2.40 0.33 1 4 0.48 7.30 8.06 5.13 0.38 4=ROSEWOOD MHP WWTP 1 4 0.60 7.71 7.37 4.65 0.42 Flow=0.03 MGD 1 4 0.72 7.93 6.80 4.25 0.45 NH3-N = 5.5 mg/L 1 4 0.84 8.05 6.31 3.91 0.49 BOD = 30.0 mg/L 1 5 0.84 8.05 6.31 3.91 0.49 1 5 1.01 8.03 5.76 3.49 0.54 1 5 1.18 8.04 5.30 3.15 0.59 1 5 1.35 8.07 4.92 2.87 0.64 1 5 1.52 8.10 4.59 2.62 0.69 Date:4/11/12 HIGH VISTA FALLS WWTP NCO089095 pb: rdb BOD= 10.0 mg/L, DO = 5.0 mg/L, Flow=0.045 MGD NH3-N = 4.0 mg/L: Level B Model Prediction for Line Creek-Winter 12.0 D.O. DO WQS, minimum �NBOD NBOD WQS, maxmum 11.0 10.0 9.0 8.0 2 7.0 ao J 6.0 E 5.0 4.0 3.0 2.0 1.0 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile Seg# Reach # Seg Mi D.O. CBOD NBOD Flow 1 1 0.00 8.21 6.13 6.40 0.22 4mo HIGH VISTA FALLS WWTP 1 1 0.06 9.14 5.76 5.94 0.24 1 1 0.11 9.69 5.45 5.56 0.26 1 2 0.11 9.69 5.45 5.56 0.26 1 2 0.26 10.25 4.79 4.74 0.31 1 2 0.41 10.45 4.31 4.15 0.36 1 3 0.41 10.45 4.31 4.15 0.36 1 3 0.45 10.45 4.22 4.03 0.37 1 3 0.48 10.44 4.14 3.93 0.38 1 4 0.48 9.31 8.56 10.32 0.434=ROSEWOOD MHP WWTP 1 4 0.60 9.76 7.89 9.42 0.47 Flow= 0.03 MGD 1 4 0.72 10.02 7.33 8.66 0.51 NH3-N = 14.0 mg/L 1 4 0.84 10.17 6.86 8.01 0.55 BOD = 30.0 mg/L 1 5 0.84 10.17 6.86 8.01 0.55 1 5 1.01 10.19 6.31 7.23 0.61 1 5 1.18 10.21 5.85 6.59 0.67 1 5 1.35 10.24 5.47 6.05 0.73 1 5 1.52 10.27 5.14 5.59 0.78 Date:4/11/12 HIGH VISTA FALLS WWTP NCO089095 pb: rdb BOD= 10.0 mg/L, DO = 5.0 mg/L, Flow=0.045 MGD NH3-N= 0.8 mg/L: Level B Model Prediction for Line Creek-Winter 12.0 o D.O. DO WQS, minimum �NBOD NBOD WQS, maxmum 11.0 10.0 9.0 0 8.0 7.0 �/q J / n 6.0 r+ E 5.0 v N 4.0 _ N f') 3.0 v 2.0 1.0 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile Seg# Reach # Seg Mi D.O. CBOD NBOD Flow 1 1 0.00 8.21 6.13 1.86 0.22 4=HIGH VISTA FALLS WWTP 1 1 0.06 9.15 5.76 1.78 0.24 1 1 0.11 9.72 5.45 1.72 0.26 1 2 0.11 9.72 5.45 1.72 0.26 1 2 0.26 10.29 4.79 1.58 0.31 1 2 0.41 10.49 4.31 1.47 0.36 1 3 0.41 10.49 4.31 1.47 0.36 1 3 0.45 10.48 4.22 1.45 0.37 1 3 0.48 10.48 4.14 1.43 0.38 1 4 0.48 9.35 8.56 8.10 0.43 4NE ROSEWOOD MHP WWTP 1 4 0.60 9.80 7.89 7.41 0.47 Flow=0.03 MGD 1 4 0.72 10.05 7.33 6.83 0.51 NH3-N = 14.0 mg/L 1 4 0.84 10.21 6.86 6.33 0.55 BOD= 30.0 mg/L 1 5 0.84 10.21 6.86 6.33 0.55 1 5 1.01 10.23 6.31 5.74 0.61 1 5 1.18 10.25 5.85 5.25 0.67 1 5 1.35 10.28 5.47 4.83 0.73 1 5 1.52 10.31 5.14 4.48 0.78 Date:4/11/12 HIGH VISTA FALLS WWTP NCO089095 pb: rdb BOD = 5.0 mg/L, DO=5.0 mg/L, Flow= 0.045 MGD NH3-N=4.0 mg/L: Level B Model Prediction for Line Creek-Winter 12.0 D.O. DO WQS, minimum �NBOD NBOD WQS, maxmum 11.0 10.0 9- 9.0 8.0 2 7.0 ao J 6.0 E 5.0 4.0 3.0 2.0 1.0 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Segment Mile Seg# Reach # Seg Mi D.O. CBOD NBOD Flow 1 1 0.00 8.21 3.75 6.40 0.22 THIGH VISTA FALLS WWTP 1 1 0.06 9.15 3.58 5.94 0.24 1 1 0.11 9.71 3.44 5.56 0.26 1 2 0.11 9.71 3.44 5.56 0.26 1 2 0.26 10.28 3.15 4.74 0.31 1 2 0.41 10.48 2.93 4.15 0.36 1 3 0.41 10.48 2.93 4.15 0.36 1 3 0.45 10.47 2.89 4.03 0.37 1 3 0.48 10.47 2.85 3.93 0.38 1 4 0.48 9.34 7.41 10.32 0.43 4=ROSEWOOD MHP WWTP 1 4 0.60 9.78 6.86 9.42 0.47 Flow=0.03 MGD 1 4 0.72 10.04 6.39 8.66 0.51 HN3-N = 14.0 mg/L 1 4 0.84 10.19 5.99 8.01 0.55 BOD = 30.0 mg/L 1 5 0.84 10.19 5.99 8.01 0.55 1 5 1.01 10.21 5.54 7.23 0.61 1 5 1.18 10.23 5.16 6.59 0.67 1 5 1.35 10.26 4.84 6.05 0.73 1 5 1.52 10.29 4.57 5.59 0.78 1 HIGH VISTA FALLS WWTP DOMESTIC LINE CREEK C .55 040302HENDERSON ASHEVILLE PERMITTEE FBNE PROPOSED 11/22/11 BYCS 0.120 0.150 0.000 0.320 0.000 23 8.580 5.000 U 6 0 0.120 2.000 1.000 7.720 0.550 0 0 6.720 0.000 1.000 0.107 0.053 0.04500 20.000 10.350 5.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 85.990 0.163 0.290 25.234 0.537 0.500 0.000 0.000 0.000 0.000 YTN CNC Y 0.299 0.149 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 66.880 0.163 0.331 19.574 0.495 0.500 0.000 0.000 0.000 0.000 NTN CNC Y 0.072 0.036 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 45.220 0.154 0.374 12.516 0.432 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.371 0.093 0.03000 60.000 24.750 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 45.220 0.178 0.404 14.476 0.449 0.500 0.000 0.000 0.000 0.000 YTY CNC Y 0.674 0.169 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 26.670 0.168 0.485 8.042 0.342 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.092 0.046 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 62.000 0.227 0.456 25.310 0.498 0.500 0.000 0.000 0.000 0.000 NTY CNC Y Wasteflow (mgd) 5-Day BOD (mg/l) Ammonia Nitrogen (mg/1) Dissolved Oxygen (mg/1) TSS (mg/1) Fecal Coliform (#/100ml) pH (SU) NCO089095 1 HIGH VISTA FALLS WWTP DOMESTIC LINE CREEK C 0.55 040302HENDERSON ASHEVILLE PERMITTEE FBNE PROPOSED 11/22/11 BYCW 0.120 0.150 0.000 0.320 0.000 12 10.780 5.000 U 6 0 0.150 2.000 1.000 9.700 0.550 0 0 8.208 0.000 1.000 0.107 0.053 0.04500 20.000 18.000 5.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 85.990 0.182 0.295 28.136 0.569 0.500 0.000 0.000 0.000 0.000 YTN CNC Y 0.299 0.149 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 66.880 0.181 0.337 21.751 0.522 0.500 0.000 0.000 0.000 0.000 YTN CNC Y 0.072 0.036 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 45.220 0.171 0.380 13.880 0.453 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.371 0.093 0.03000 60.000 24.750 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 45.220 0.195 0.410 15.865 0.468 0.500 0.000 0.000 0.000 0.000 YTY CNC Y 0.674 0.169 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 26.670 0.184 0.493 8.818 0.353 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.092 0.046 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 0.000 0.000 2.000 1.000 0.000 0.000 62.000 0.249 0.463 27.761 0.522 0.500 0.000 0.000 0.000 0.000 NTY CNC Y Wasteflow (mgd) 5-Day BOD (mg/l) Ammonia Nitrogen (mg/1) Dissolved Oxygen (mg/1) TSS (mg/1) Fecal Coliform (#/100ml) pH (SU) NCO089095 1 HIGH VISTA FALLS WWTP DOMESTIC LINE CREEK C .55 040302HENDERSON ASHEVILLE PERMITTEE FBNE PROPOSED 1/27/12 BYCS 0.120 0.150 0.000 0.320 0.000 23 8.580 5.000 U 6 0 0.120 2.000 1.000 7.720 0.550 0 0 6.720 0.000 1.000 0.110 0.055 0.04500 15.000 9.000 5.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 85.990 0.163 0.290 25.234 0.200 0.500 0.000 0.000 0.000 0.000 YTN CNC 0.300 0.150 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 66.880 0.163 0.331 19.597 0.495 0.500 0.000 0.000 0.000 0.000 NTN CNC Y 0.070 0.035 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 45.220 0.154 0.374 12.527 0.432 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.360 0.120 0.03000 45.000 24.750 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 45.220 0.178 0.404 14.467 0.449 0.500 0.000 0.000 0.000 0.000 YTY CNC Y 0.680 0.170 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 26.670 0.167 0.485 8.034 0.342 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.090 0.045 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 62.000 0.227 0.456 25.295 0.498 0.500 0.000 0.000 0.000 0.000 NTY CNC Y Wasteflow (mgd) 5-Day BOD (mg/l) Ammonia Nitrogen (mg/1) Dissolved Oxygen (mg/1) TSS (mg/1) Fecal Coliform (#/100ml) pH (SU) NCO089095 1 HIGH VISTA FALLS WWTP DOMESTIC LINE CREEK C .55 040302HENDERSON ASHEVILLE PERMITTEE FBNE PROPOSED 1/27/12 BYCS 0.120 0.150 0.000 0.320 0.000 23 8.580 5.000 U 6 0 0.120 2.000 1.000 7.720 0.550 0 0 6.720 0.000 1.000 0.110 0.055 0.04500 15.000 5.100 5.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 85.990 0.163 0.290 25.234 0.537 0.500 0.000 0.000 0.000 0.000 YTN CNC 0.300 0.150 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 66.880 0.163 0.331 19.597 0.495 0.500 0.000 0.000 0.000 0.000 NTN CNC Y 0.070 0.035 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 45.220 0.154 0.374 12.527 0.432 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.360 0.120 0.03000 45.000 24.750 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 45.220 0.178 0.404 14.467 0.449 0.500 0.000 0.000 0.000 0.000 YTY CNC Y 0.680 0.170 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 26.670 0.167 0.485 8.034 0.342 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.090 0.045 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 62.000 0.227 0.456 25.295 0.498 0.500 0.000 0.000 0.000 0.000 NTY CNC Y Wasteflow (mgd) 5-Day BOD (mg/l) Ammonia Nitrogen (mg/1) Dissolved Oxygen (mg/1) TSS (mg/1) Fecal Coliform (#/100ml) pH (SU) NCO089095 1 HIGH VISTA FALLS WWTP DOMESTIC LINE CREEK C .55 040302HENDERSON ASHEVILLE PERMITTEE FBNE PROPOSED 1/27/12 BYCS 0.120 0.150 0.000 0.320 0.000 23 8.580 5.000 U 6 0 0.120 2.000 1.000 7.720 0.550 0 0 6.720 0.000 1.000 0.110 0.055 0.04500 7.500 9.000 5.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 85.990 0.163 0.290 25.234 0.200 0.500 0.000 0.000 0.000 0.000 YTN CNC 0.300 0.150 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 66.880 0.163 0.331 19.597 0.495 0.500 0.000 0.000 0.000 0.000 NTN CNC Y 0.070 0.035 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 45.220 0.154 0.374 12.527 0.432 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.360 0.120 0.03000 45.000 24.750 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 45.220 0.178 0.404 14.467 0.449 0.500 0.000 0.000 0.000 0.000 YTY CNC Y 0.680 0.170 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 26.670 0.167 0.485 8.034 0.342 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.090 0.045 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 62.000 0.227 0.456 25.295 0.498 0.500 0.000 0.000 0.000 0.000 NTY CNC Y Wasteflow (mgd) 5-Day BOD (mg/l) Ammonia Nitrogen (mg/1) Dissolved Oxygen (mg/1) TSS (mg/1) Fecal Coliform (#/100ml) pH (SU) NCO089095 1 HIGH VISTA FALLS WWTP DOMESTIC LINE CREEK C .55 040302HENDERSON ASHEVILLE PERMITTEE FBNE PROPOSED 1/27/12 BYCS 0.120 0.150 0.000 0.320 0.000 23 8.580 5.000 U 6 0 0.120 2.000 1.000 7.720 0.550 0 0 6.720 0.000 1.000 0.110 0.055 0.04500 15.000 9.000 5.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 85.990 0.163 0.290 25.234 0.200 0.500 0.000 0.000 0.000 0.000 YTN CNC 0.300 0.150 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 66.880 0.163 0.331 19.597 0.495 0.500 0.000 0.000 0.000 0.000 NTN CNC Y 0.070 0.035 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 45.220 0.154 0.374 12.527 0.432 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.360 0.120 0.03000 45.000 19.600 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 45.220 0.178 0.404 14.467 0.449 0.500 0.000 0.000 0.000 0.000 YTY CNC Y 0.680 0.170 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 26.670 0.167 0.485 8.034 0.342 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.090 0.045 0.00000 0.000 0.000 0.000 1.300 0.300 2.000 1.000 7.720 0.000 2.000 1.000 7.720 0.000 62.000 0.227 0.456 25.295 0.498 0.500 0.000 0.000 0.000 0.000 NTY CNC Y Wasteflow (mgd) 5-Day BOD (mg/l) Ammonia Nitrogen (mg/1) Dissolved Oxygen (mg/1) TSS (mg/1) Fecal Coliform (#/100ml) pH (SU) NCO089095 1 HIGH VISTA FALLS WWTP DOMESTIC LINE CREEK C 0.55 040302HENDERSON ASHEVILLE PERMITTEE FBNE PROPOSED 1/30/12 BYCW 0.120 0.150 0.000 0.320 0.000 12 10.780 5.000 U 5 0 0.150 2.000 1.000 9.700 0.550 0 0 8.208 0.000 1.000 0.110 0.055 0.04500 15.000 18.000 5.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 85.990 0.182 0.296 28.150 0.569 0.500 0.000 0.000 0.000 0.000 YTN CNC Y 0.300 0.150 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 66.880 0.181 0.337 21.775 0.522 0.500 0.000 0.000 0.000 0.000 YTN CNC Y 0.070 0.035 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 45.220 0.171 0.381 13.892 0.453 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.360 0.120 0.03000 45.000 63.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 45.220 0.195 0.410 15.854 0.468 0.500 0.000 0.000 0.000 0.000 YTY CNC Y 0.680 0.170 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 26.670 0.184 0.492 8.810 0.353 0.500 0.000 0.000 0.000 0.000 NTY CNC Y Wasteflow (mgd) 5-Day BOD (mg/1) Ammonia Nitrogen (mg/1) Dissolved Oxygen (mg/1) TSS (mg/1) Fecal Coliform (#/100ml) pH (SU) NCO089095 1 HIGH VISTA FALLS WWTP DOMESTIC LINE CREEK C 0.55 040302HENDERSON ASHEVILLE PERMITTEE FBNE PROPOSED 1/30/12 BYCW 0.120 0.150 0.000 0.320 0.000 12 10.780 5.000 U 5 0 0.150 2.000 1.000 9.700 0.550 0 0 8.208 0.000 1.000 0.110 0.055 0.04500 15.000 3.700 5.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 85.990 0.182 0.296 28.150 0.569 0.500 0.000 0.000 0.000 0.000 YTN CNC Y 0.300 0.150 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 66.880 0.181 0.337 21.775 0.522 0.500 0.000 0.000 0.000 0.000 YTN CNC Y 0.070 0.035 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 45.220 0.171 0.381 13.892 0.453 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.360 0.120 0.03000 45.000 63.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 45.220 0.195 0.410 15.854 0.468 0.500 0.000 0.000 0.000 0.000 YTY CNC Y 0.680 0.170 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 26.670 0.184 0.492 8.810 0.353 0.500 0.000 0.000 0.000 0.000 NTY CNC Y Wasteflow (mgd) 5-Day BOD (mg/1) Ammonia Nitrogen (mg/1) Dissolved Oxygen (mg/1) TSS (mg/1) Fecal Coliform (#/100ml) pH (SU) NCO089095 1 HIGH VISTA FALLS WWTP DOMESTIC LINE CREEK C 0.55 040302HENDERSON ASHEVILLE PERMITTEE FBNE PROPOSED 1/30/12 BYCW 0.120 0.150 0.000 0.320 0.000 12 10.780 5.000 U 5 0 0.150 2.000 1.000 9.700 0.550 0 0 8.208 0.000 1.000 0.110 0.055 0.04500 7.500 18.000 5.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 85.990 0.182 0.296 28.150 0.569 0.500 0.000 0.000 0.000 0.000 YTN CNC Y 0.300 0.150 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 66.880 0.181 0.337 21.775 0.522 0.500 0.000 0.000 0.000 0.000 YTN CNC Y 0.070 0.035 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 45.220 0.171 0.381 13.892 0.453 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.360 0.120 0.03000 45.000 63.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 45.220 0.195 0.410 15.854 0.468 0.500 0.000 0.000 0.000 0.000 YTY CNC Y 0.680 0.170 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 26.670 0.184 0.492 8.810 0.353 0.500 0.000 0.000 0.000 0.000 NTY CNC Y Wasteflow (mgd) 5-Day BOD (mg/1) Ammonia Nitrogen (mg/1) Dissolved Oxygen (mg/1) TSS (mg/1) Fecal Coliform (#/100ml) pH (SU) NCO089095 1 HIGH VISTA FALLS WWTP DOMESTIC LINE CREEK C 0.55 040302HENDERSON ASHEVILLE PERMITTEE FBNE PROPOSED 1/30/12 BYCW 0.120 0.150 0.000 0.320 0.000 12 10.780 5.000 U 5 0 0.150 2.000 1.000 9.700 0.550 0 0 8.208 0.000 1.000 0.110 0.055 0.04500 15.000 18.000 5.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 85.990 0.182 0.296 28.150 0.569 0.500 0.000 0.000 0.000 0.000 YTN CNC Y 0.300 0.150 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 66.880 0.181 0.337 21.775 0.522 0.500 0.000 0.000 0.000 0.000 YTN CNC Y 0.070 0.035 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 45.220 0.171 0.381 13.892 0.453 0.500 0.000 0.000 0.000 0.000 NTY CNC Y 0.360 0.120 0.03000 45.000 42.500 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 45.220 0.195 0.410 15.854 0.468 0.500 0.000 0.000 0.000 0.000 YTY CNC Y 0.680 0.170 0.00000 0.000 0.000 0.000 1.300 0.340 2.000 1.000 9.700 0.000 2.000 1.000 9.700 0.000 26.670 0.184 0.492 8.810 0.353 0.500 0.000 0.000 0.000 0.000 NTY CNC Y Wasteflow (mgd) 5-Day BOD (mg/1) Ammonia Nitrogen (mg/1) Dissolved Oxygen (mg/1) TSS (mg/1) Fecal Coliform (#/100ml) pH (SU) NCO089095