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Home My WebLink AboutNC0023981_Speculative Limits_19970221NPDES DOCUMENT !;CANNING COVER SHEET NC0023981 Lenoir — Lower Creek WWTP NPDES Permit: Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Correspondence Owner Name Change Technical Correction Instream Assessment (67b) S Speculative Limits Environmental Assessment (EA) Document Date: February 21, 1997 This document is printed on reuse paper - ignore any content on the reYerse side State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director A717A E)EHNF1 February 21, 1997 Mr. T.S. Childers, Wastewater Supervisor Town of Lenoir P.O. Box 958 Lenoir, N.C. 28645-0958 Subject: Speculative Limits for Caldwell Co. Dischargers Dear Mr. Childers: An analysis for speculative effluent limits for the expansion of several facilities in Caldwell County has been completed by the staff of the Instream Assessment Unit. These limits were requested in lieu of an area -wide 201 Facilities Plan Amendment for the US 321. Cori der from Lake Hickory to Lenoir. Speculative limits were prepared for wastewater treatment plants for the Lenoir - Lower Creek and Gunpowder Creek facilities, Granite Falls WWTP and a proposed regional WWTP downstream of the existing Granite Falls plant. Please be advised that response to this request does not guarantee that the Division will issue NPDES permits to discharge treated wastewater into these receiving waters. It should be noted that the preparation of an environmental assessment (EA) by the applicant will be required in the following cases: 1) a new facility involving an expenditure of public funds or use of public (state) lands and having a design capacity of 0.5 MGD or greater and 2) a facility proposing an expansion of 0.5 MGD or greater, or exceeding one-third of the 7Q10 of the receiving stream. DWQ will not accept a permit application for a project requiring an EA until the document has been approved by the Department of Environment, Health and Natural Resources and a Finding of No Significant Impact (FONSI) has been sent to the State Clearinghouse for review and comment. The EA should contain a clear justification for the proposed facility and an analysis of potential alternatives which should include a thorough evaluation of non -discharge alternatives. In addition, an EA should show how water reuse, conservation, and inflow/infiltration reductions have been considered. Nondischarge alternatives, such as spray irrigation, water conservation, inflow and infiltration reduction or connection to a regional treatment and disposal system, are considered to be environmentally preferable to a surface water discharge. In accordance with the North Carolina General Statutes, the practicable waste treatment and disposal alternative with the least adverse impact on the environment is required to be implemented. If the EA demonstrates that the project may result in a significant adverse affect on the quality of the environment, an Environmental Impact Statement (EIS) would be required. Michelle Suverkrubbe of the Water Quality Planning Branch can provide further information regarding the requirements of the N.C. Environmental Policy Act. P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper Letter to Mr. Childers - page 2 - In order to receive final permit limits, a formal application will have to be submitted to the Division's Permits and Engineering Unit. Per North Carolina's anti -degradation policy (15A NCAC 2B.0201 (c)(1)), each application for an NPDES permit or NPDES permit expansion to discharge treated waste will require documentation of an effort to consider non -discharge alternatives pursuant to North Carolina Regulation 15A NCAC 2H.0105 (c)(2). Based on available information, the tentative limits for conventional constituents for the Lenoir - Lower Creek WWTP at the expansion flow of 6 MGD are: Summer Winter BOD5 (mg/1) - 22 30 NH3-N (mg/1) 2 4.6 TSS (mg/1) 30 30 Dissolved Oxygen (mg/1) 5 nr Fecal Coliform (#/100m1) 200 200 pH (SU) 6-9 6-9 Chlorine WW1) 28 28 *nr - no requirement The instream waste concentration at 6.0 MGD is 44%. A chronic toxicity testing requirement with quarterly monitoring will remain a condition of the NPDES permit. A complete evaluation of limits and monitoring requirements for metals and other toxicants will be addressed for all the expansion flows at the time of formal permit application. The tentative limits for conventional constituents for the Lenoir - Gunpowder Creek WWTP at the expansion flow of 3.2 MGD are: Summer Winter BOD5 (mg/1) • 22 30 NH3-N (mg/1) 2 4 TSS (mg/1) 30 30 Dissolved Oxygen (mg/1) 5 nr Fecal Coliform (#/10Oml) 200 200 pH (SU) 6-9 6-9 Chlorine (p.g/1) 26 26 The instream waste concentration at 3.2 MGD is 63%. A chronic toxicity testing requirement with quarterly monitoring will remain a condition of the NPDES permit. Instream monitoring for the parameters, temperature, dissolved oxygen, and conductivity, will still be required. In addition, it is recommended that instrea.m nutrient monitoring for. total nitrogen, total phosphorus, and chlorophyll a, be continued during the months of May through September. e Letter to Mr. Childers - page 3 - The tentative limits for conventional constituents at the Granite Falls WWTP at the two proposed flows are as follows: Summer Winter Wasteflow (MGD) 1.9 1.9 BOD5 (mg/1) 11.8 18.8 NH3-N (mg/1) 2.9 7.4 TSS (mg/1) 30 30 Dissolved Oxygen (mg/1) 5 nr Fecal Coliform (#/100ml) 200 200 pH (SU) 6-9 6-9 Chlorine (p « 1) - 28 28 Summer Winter Wasteflow (MGD) 2.7 2.7 BOD5 (mg/1) 8.3 12.9 NH3-N (mg/1) 2.4 5.7 TSS (mg/1) 30 30 Dissolved Oxygen (mg/I) 5 nr Fecal Coliform (#/100m1) 200 200 pH (SU) 6-9 6-9 Chlorine (pg/l) 28 28 The instream waste concentrations at 1.9 and 2.7 MGD are 29°k� and 36%, respectively. A chronic toxicity testing requirement with quarterly monitoring will remain a condition of the NPDES permit. The final speculative scenario was a proposed regional facility with design flows of 3 or 6 MGD, that would discharge near the mouth of Gunpowder Creek just before its confluence with Lake Hickory. Information provided to DWQ indicated that this regional facility would allow both the Gunpowder Creek and Granite Falls WWTPs to go off-line and connect to this plant. Because there is very little slope and the receiving stream is a cove like area, this discharge at the mouth of Gunpowder Creek would be considered a direct discharge to Lake Hickory. It. is recommended that this proposed facility be designed to meet advanced secondary limits for conventional constituents. For planning purposed, it recommended that the plant be designed to meet limits of between 15 to 20 mg/l BOD5 and 2 to 6 mg./1 NH3-N. In addition, tentative limits for non oxygen consuming wastes are: DO (mg/1) 5 TSS (mg/1) 30 Fecal Coliform (#/100m1) 200 pH (SU) 6-9 Chlorine' (t g/1) 28 Currently, the US Geological Survey, the Western Piedmont Council of Government (WPCOG) and DWQ are conducting a water quality study to estimate the assimilative capacity of Lake Hickory for oxygen consuming wastes. Since the study is still ongoing, no definitive recommendations have been presented. Until that study is completed and water quality modeling results are finalized, the Technical Support Branch Letter to Mr. Childers - page 4 - recommends that the proposed facility be designed to meet advanced secondary limits with sufficient flexibility so as to be able to meet BOD5 limits and NH3-N limits in the ranges described above. The BOD5 and NH3 limits were recommended using DWQ's Best Professional Judgment (BPJ) in an effort to help reduce the impact of point sources discharging directly into the major lakes in the Catawba River Basin. With existing stages of eutrophication and documented water quality problems in Lakes Wylie, Rhodhiss, Hickory and other tributary arms above lakes, DEM does not recommend continuing with the minimum level of wastewater treatment for direct discharges to lakes. Therefore, BPJ limits will be applied to all new and expanding discharges to the Catawba chain lakes. Nutrient loading can cause water quality problems in lakes. For the expanding WWTPs at Lenoir -Gunpowder Creek, Granite Falls and the proposed Gunpowder Creek discharger near the mouth, it is recommended that the treatment plants be designed so that they can be easily upgraded for nutrient removal. This would be a proactive measure, in the event that water quality studies show that nutrient limits, particularly for total phosphorus, are necessary in the future. It should be noted that the summer and winter NH3-N limits recommended for all these plants are based on protecting the receiving streams against instream toxicity. North Carolina is evaluating all NPDES dischargers for ammonia toxicity following the Environmental Protection Agency (EPA) guidance to protect the waters for an instream criteria of 1 mg/1 in the summer and 1.8 mg/1 in the winter, under 7Q10 flow conditions. The Division of Water Quality (DWQ) is requiring chlorine limits and dechlorination for all new or expanding dischargers proposing the use of chlorine for disinfection. The process of chlorination/dechlorination or an alternate form of disinfection, such as ultraviolet radiation, should allow the facility to comply with the total residual chlorine limits recommended in the above scenarios. The request did not indicate whether any of the expansion wastewater would have any industrial constituency, therefore this aspect could not be evaluated. If there is any industrial flow, there is the possibility that effluent limitations or monitoring for toxicants or metals could be added to the perrnits upon further evaluation. DWQ is currently on its second round of implementation of a basinwide water quality management initiative for the Catawba River Basin. Our next installment of the Catawba River Basin plan is scheduled for publication in the year 2000 . We will attempt to further address all sources of point and nonpoint pollutants where deemed necessary to protector restore water quality standards. In addressing interaction of sources, wasteload •allocations may be affected. Those facilities that already have committed to high levels of treatment technology are least likely to he affected. Letter to Mr. Childers - page 5- Final NPDES effluent limitations will be determined after a formal permit application has been submitted to the Division. If there are any additional questions concerning this matter, please feel free to contact Ruth Swanek (ext. 503) or Jackie Nowell (ext. 512), of my staff at (919) 733-5083. erely,,g onald L. Safrit, P.E. Assistant Chief for Tech' PP Water Quality Section DLS/JMN cc: Rex Gleason Tim Baldwin, McKim and Creed Mike Waresak, McGill and Associates Central Files WLA File DIVISION OF WATER QUALITY March 14, 1997 MEMORANDUM TO: Michelle Suverkrubbe THRU: Ruth Swanek Carla Sanderso1 FROM: Jacquelyn M. Nowell4t1 SUBJECT: Lenoir -Lower Creek WWTP Expansion # 11528 In -House Environmental Assessment Caldwell County The subject document has been reviewed by the Instream Assessment Unit (IAU). The primary concerns involving the impact of the expansion of the plant on the Lower Creek watershed have been addressed. The IAU has followed up the telephone memorandum in Appendix B with a written response to the Town (dated February 21, 1997) that includes tentative effluent limits for the Lenoir -Lower Creek plant at 6.0 MGD. Based on available information, the tentative limits for conventional constituents for the Lenoir - Lower Creek WWTP at the expansion flow of 6 MGD are: Summer Winter BODS (mg/1) 22 30 NH3-N (mg/1) 2 4.6 TSS (mg/1) 30 30 Dissolved Oxygen (mg/1) 5 nr Fecal Coliform (#/100m1) 200 200 pH (SU) 6-9 6-9 Chlorine (14/1) 28 28 *nr - no requirement The NH3 limits are based on protecting Lower Creek against instream ammonia toxicity. The instream waste concentration at 6.0 MGD is 44%. A chronic toxicity testing requirement with quarterly monitoring will remain a condition of the NPDES permit. A complete evaluation of limits and monitoring requirements for metals and other toxicants will be addressed at the time of formal permit application. We have no additional comments on the assessment. Please contact me if there are any questions. cc: Rex Gleason WLA File Note for Jackie Nowell From: Ruth Swanek Date: Tue, Dec 17, 1996 9:39 AM Subject: RE: Lenoir -Lower Creek WWTP To: Jackie Nowell Zeurt,. 6 inuiZ c • Page 1 Jac Thanks Jackie. I guess my memory failed me on that one - I really had spaced out that current spec request. From: Jackie Nowell on Tue, Dec 17, 1996 9:35 AM Subject: Lenoir -Lower Creek WWTP To: Michelle Suverkrubbe; Ruth Swanek Cc: Carla Sanderson A speculative letter has already been submitted to our unit concerning Lenoir's expansion to 6 MGD. (from McKim & Creed, 11/26/96). The firm is preparing a 201 Facilities Plan for Caldwell Co. that includes 4 other municipalities. Based on our 1994 response to spec requests for 5 &7 MGD, it would seem that for 6 MGD, summer limits for BOD5 will be between 17 - 30 mg/1 and NH3 limits will be between 2 - 4 mg/l. Our response to the spec for both Lenoir plants, and two Granite Falls sites is scheduled be completed by the end of this month. We also have currently inhouse an instream assessment for an SOC that Lenoir -Lower Cr WWTP has requested . The plant has an average flow discharge of about 50% of its design flow of 4.08 MGD. There are problems meeting its permitted NH3 limit of 7 mg/1 and the SOC is for some relief while plant improvements are being made. They have requested an SOC NH3 limit of 30 mg/1 and additional flow of 600,000 GPD, but we are still reviewing whether this limit can be allowed and still meet the 67(b) criteria. (Our ARO contact is out of the office until the 20th and further discussion is needed on the SOC.) Please let me know if additional info is needed. Page 1 Note for Jackie Nowell From: Ruth Swanek Date: Mon, Dec 16, 1996 1:23 PM subject: Lenoir Lower Ck WWTP To: Jackie Nowell cc: Carla Sanderson; Michelle Suverkrubbe Michelle called. She is doing a preliminary review of EA Lenoir has submitted (for completeness). They have included spec limits that we did in September 1994 for 5 and 7 MGD. Their EA is for 6 MGD. Would you quickly review file to determine if our old spec is good enough or whether you think we should do new one. If you think we should do new one, Michelle will include that in her comments to town. Make sure stream classification has not changed since 1994. Michelle is trying to draft letter to town this week, so please try to look into this ASAP. Let me know if questions. Thanks. DIVISION OF WATER QUALITY January 10, 1997 MEMORANDUM TO: Roy Davis Jim Reid FROM: w Jacquelyn M. • well THRU: Donald L. S Ruth Swanek Carla Sanderson SUBJECT: Instream Assessment for SOC 67(b) Request Lenoir -Lower Creek WWTP NPDES Permit No. NC0023981 Caldwell County Summary and Recommendation The Instream Assessment Unit has reviewed the request for an instream assessment for the Lenoir -Lower Creek WWTP. The Town is requesting a Special Order of Consent (SOC) during improvements to the wastewater treatment plant. The existing design flow is 4.08 MGD, and there are future plans for expansion to 5.0 or 7.0 MGD. The total requested SOC flow is 600,000 GPD, for a total SOC flow requested limit of 2.60 MGD. The SOC limit requested is for NH3 of 30 mg/l. The results of the Level B model analysis indicated that according to the EMC 67 (b) criteria, the predicted dissolved oxygen concentration in Lower Creek was significantly affected by the additional flow. The EMC 67 (b) criteria, which states that the discharge will not decrease the DO minimum by more than 0.5 mg/1 or will not extend the stream length of the DO minimum below the standard by more than 0.5 miles, was violated with the addition of 600,000 GPD. Our analysis determined that the facility cannot.accept that amount of additional flow under the requested SOC limit. Additional analysis indicated that only 400,000 GPD can be accepted and meet the 67(b) criteria. Even with this flow, the model predicts instream DO levels below the 5 mg/1 standard, but within the allowable 67(b) criteria. Background This facility for the City of Lenoir discharges into the Lower Creek in the Catawba River Basin and has a stream classification of C. The summer 7Q10 flow is estimated to be 9.3 cfs with an average flow of 69 cfs. Updated flow estimates were used in speculative analyses for expansion requests, however for this SOC, existing flows were used in the modelling analyses. A review of compliance evaluation data shows that from October 1995 to September 1996, Lenoir has had three contraventions of the BOD5 limit, two contraventions of the TSS limit, one of the fecal limit and five of the NH3 limit. At least twice per year for the past three years, there have also been some problems meeting the Instream Assessment for Lenoir -Lower Creek SOC page 2 chronic toxicity test @ 40%. Fails were recorded in January and May 1994, May and November 1995, and January 1996. The yearly average wasteflow of the plant is approximately 2.15 MGD. Analysis and Discussion An instream assessment was performed using the Level B model framework. The Gamewell Elementary School (0.020 MGD), located on a UT to Lower Creek about 1.5 miles below the Lower Creek WWTP and the Monte Carlo Mobile Home Park (0.005 MGD) discharging into Lower Creek nearly 5 miles downstream were included in the model. The current design flow of the Lenoir WWTP is 4.08 MGD, however a yearly average flow of 2.0 MGD was used as the pre-SOC flow. The requested post SOC flow was 2.6 MGD, which allowed for an additional 600,000 GPD. The model inputs at 2.6 MGD were the existing limit of 30 mg/1 of BOD5 and the requested SOC limit of 30 mg/1 of NH3. Initially, two models were run at the flows of 2.0 and 2.6 MGD. Waste inputs into the first model for the SOC included 2.0 MGD of wasteflow, 60 mg/1 CBOD (30 mg/1 BOD5 * 2.0) and NBOD of 135 mg/1 (requested SOC NH3 limit of 30 mg/1* 4.5). The model results predict a DO minimum of 4.26 mg/1 to occur approximately 1.5 miles below the outfall. A secondary DO sag of 4.06 mg/1 occurs 0.45 miles below the UT. The second model run included 2.6 MGD of wasteflow, 60 mg/1 CBOD (30 mg/1 BOD5 * 2.0) and NBOD of 135 mg/1 ( requested SOC NH3 limit of 30 mg/1 * 4.5). The model results predict the DO minimum of 3.42 mg/1 to occur approximately 0.45 miles below the UT. The difference of predicted instream DO minimums was 0.64 mg/I, and demonstrates a significant depression of the instream DO level per 67(b) criteria. Another model was run to determine what amount of flow Lenoir would be able to accept during the Order. It was decided to reduce the requested SOC flow by increments of 100,000 GPD until an allowable wasteflow was found. At a SOC flow of 2.4 MGD, a DO minimum of 3.87 mg/1 is predicted, with a secondary sag of 3.63 mg/1. This is a difference of 0.39 and 0.43 mg/1, respectively from the pre-SOC flow run and is acceptable to the 67(b) criteria. Recommendation Based on the model results, the Instream Assessment Unit recommends approval of the 400.000 GPD of additional wasteflow for the Lenoir WWTP and the SOC limit of • 30 mg/1 of NH3. All other permitted limitations, and effluent and instream monitoring requirements shall remain the same as in the current NPDES permit. cc: Kent Wiggins Central Files WLA File Table 1. Instream Assessment Summary for the City of Lenoir Wasteflow Assumptions Design Capacity 4.08 MGD Pre-SOC Flow 2.0 MGD SOC Flows Requested 0.6 MGD Pre-SOC + SOC Flows 2.6 MGD Model Input Summary Headwater conditions: s7Q 10 flow 9.3 cfs w7Q10 flow 14.4 cfs Average flow 69 cfs Design Temperature 25 °C CBOD 2.0 mg/1 NBOD 1.0 mg/1 DO (90% saturation) 7.44 mg/1 Wastewater Inputs: Pre- SOC Wasteflow 2.0 MGD Requested SOC Wasteflow 0.6 MGD Recommended SOC Wasteflow 2.4 MGD CBOD 60 mg/1 NBOD 135 mg/1 Model Output Summary Qw DO Net Distance DO Net (MGD) min. Change <5.0 mg/1 Change (mg/1) (mg/I) (mi.) (mi.) Pre-SOC 2.0 4.06 NA 3.58 NA Requested SOC 2.6 3.42 0.64 3.97 0.39 Recommended SOC 2.4 3.63 0.43 3.82 0.24 Ow NH3 NBOD DO Min DO Diff. Milept. DO Min DO Diff. Milept. (S1 R2) (S3R1) 2MGD 30 135 4.26 1.47 4.06 0. 45 2.4 MGD 30 135 3.87 0.39 1.47 3.63 0.43 0.45 2.5 MGD 30 135 3.78 0.48 1.47 3.52 0.54 0.45 2.6 MGD 30 135 3.69 0.57 DO minimum values exceed the 67b criteria 1.47 3.42 0.64 1.35 DIVISION OF WA 1hR QUALITY January 9, 1997 MEMORANDUM TO: Roy Davis Jim Reid FROM: Jacquelyn M. Nowell THRU: Donald L. Safrit Ruth Swanek Carla Sanderson SUBJECT: ote, )CP)c\fk 4 a, A \\<, 4,16 fig, W\ fd$ ko \J nO. ri‘9r\ Instream Assessment for SOC 67(b) Request Lenoir -Lower Creek WWTP NPDES Permit No. NC0023981 Caldwell County Summary and Recommendation The Instream Assessment Unit has reviewed the request for an instream assessment for the Lenoir -Lower Creek WWTP. The Town is requesting a Special Order of Consent (SOC) during improvements to the wastewater treatment plant. The existing design flow is 4.08 MGD, and there are future plans for expansion to 5.0 or 7.0 MGD. The total requested SOC flow is 600,000 GPD, for a total SOC flow requested limit of 2.60 MGD. The SOC limit requested is for NH3 of 30 mg/1. The results of the Level B model analysis indicated that according to the EMC 67 (b) criteria, the predicted dissolved oxygen concentration in Lower Creek was significantly affected by the additional flow. The EMC 67 (b) criteria, which states that the discharge will not decrease the DO minimum by more than 0.5 mg/1 or will not extend the stream length of the DO minimum below the standard by more than 0.5 miles, was violated with the addition of 600,000 GPD. Our analysis determined that the facility cannot accept that amount of additional flow under the requested SOC limit. Additional analysis indicated that only 400,000 GPD can be accepted and meet the 67(b) criteria. Even with this flow, the model predicts instream DO levels below the 5 mg/1 standard, but within the allowable 67(b) criteria. Background This facility for the City of Lenoir discharges into the Lower Creek in the Catawba River Basin and has a stream classification of C. The summer 7Q10 flow is estimated to be 9.3 cfs with an average flow of 69 cfs. Updated flow estimates were used in speculative analyses for expansion requests, however for this SOC, existing flows were used in the modelling analyses. A review of compliance evaluation data shows that from October 1995 to September 1996, Lenoir has had three contraventions of the BOD5 limit, two contraventions of the TSS limit, one of the fecal limit and five of the NH3 limit. At least twice per year for the past three years, there have also been some problems meeting the Instream Assessment for Lenoir -Lower Creek SOC page 2 chronic toxicity test @ 40%. Fails were recorded in January and May 1994, May and November 1995, and January 1996. The yearly average wasteflow of the plant is approximately 2.15 MGD. Analysis and Discussion An instream assessment was performed using the Leveler model framework. The Gamewell Elementary School (0.020 MGD) BOD5 — 30-nig/1, N I3-4.7-(s) and 1.6.5 (w) mg/1), located on a UT to Lower Creek about 1.5 miles below the Lower Creek WWTP and the Monte Carlo Mobile Home Park (0.005 MGD) discharging into Lower Creek nearly 5 miles downstream were included in the model. The current design flow of the Lenoir WWTP is 4.08 M , however a yearly average flow of 2.0 Ia was used as the p°o pre-SOC flow. The s OC flow 2.6 MGD, which allow'$ f e l 1, 0 GPD. The model inputs at 2.6 MGD ge"ethe existing limit of 30 mg/1 of BOD5 and the requested SOC limit of 30 mg/1 of NH3. Initially, two models were run at the flows of 2.0 and 2.6 MGD. Waste inputs into the model for the Let nt included 2.0 MGD of wasteflow, 60 mg/1 CBOD (30 mg/1 * 2.0) and NBOD of 135 mg/1 (requested SOC NH3 limit of 30 mg/1* 4.5). The model results predict the DO minimum of 4.26 mg/1 to occur approximately 1.5 miles below the outfall. A secondary DO sag of 4.06 mg/1 occurs 0.45 miles ow the UT. The second model run included 2.6 MGD of wasteflow, 60 mg/1 CBOD (30 mg 1 * 2.0) and NBOD of 135 mg/1 ( requested SOC NH3 limit of 30 mg/1 * 4.5). The model results predict the DO minimum of 3.69 mg/1 to occur approximately 1.5 miles below the outfall. The difference of predicted instream DO minimums was 0.57 mg/1, and demonstrates a significant depression of the instream DO level per 67(b) criteria. b r cW► J Another model was run to determine what amount of flow Lenoir would be able to caw` `�� acce�. It was decided to reduce the requested SOC flow by increments of 100,000 GPD / until an allowable wasteflow was found. At a SOC flow of 400,000 GPD, a DO minimum of 3.87 mg/1 is predicted, with a secondary sag of 3.63 mg/l. This is a difference of 0.39 and 0.43 mg/1, respectively from the pre-SOC flow run and is acceptable to the 67(b) criteria. Recommendation Based on the model results, the Instream Assessment Unit of the 400,000 GPD of additional wasteflow for the Lenoir WWTP and the 30 mg/1 of NH3. All other permitted limitations, and effluent and instream requirements shall remain the same as in the current NPDES permit. cc: Kent Wiggins Central Files WLA File ds �Qv 'DJ approves �s-- SOC limit of monitoring Table 1. Instream Assessment Summary for the City of Lenoir Wasteflow Assumptions Design Capacity 4.08 MGD Pre-SOC Flow 2.0 MGD SOC Flows Requested 0.6 MGD Pre-SOC + SOC Flows 2.6 MGD Model Input Summary Headwater conditions: s7Q10 flow 9.3 cfs w7Q10 flow 14.4 cfs Average flow 69 cfs Design Temperature 25 °C CBOD 2.0 mg/1 NBOD 1.0 mg/1 DO (90% saturation) 7.44 mg/1 Wastewater Inputs: Pre- SOC Wasteflow 2.0 MGD Requested SOC Wasteflow 0.6 MGD Recommended SOC Wasteflow 2.4 MGD CBOD 60 mg/1 NBOD 135 mg/1 Model Output Summary Qw DO Net Distance DO Net (MGD) min. Change <5.0 mg/1 Change (mg/1) (mg/1) (mi.) (mi.) ,Jr-e -60C. 2.0 �eyed .60L 2.6 Fecorvinr2rJed SoC, 2.4 4.26 NA 0.0 3.69 0.57 0.0 3.87 0.39 0.0 NA 0.0 0.0 7 �1 Lenoir -Lower Creek WWTP SOC Lower Creek 030831 jmn ARO has requested an instream assessment for the facility because of noncompliance with the NH3 limit. Existing summer limits for the 4.08 MGD plant are BOD5=30 mg/1, NH3 limit of 7 mg/1, DO=5, Fecal=200, Cd=4.9 µg/1, and Cn =12 14/1. Winter limits are secondary with no DO limits and Cd and Cn limits. There is also effluent monitoring for copper and zinc. Since April 1996, Lenoir has exceeded its summer NH3 limit of 7 mg/1, 5 times. Permit violations for BOD5, TSS, and fecal coliform had all occurred in the first quarter of 1996. Requested SOC limit was for 30 mg/1 of NH3, with an additional 600,000 GPD. There will be additional construction on the Lenoir plant. In addition, sewer lines have been constructed to the Towns of Sawmills and Gamewell, to take additional wasteflow from the communities. Pre-SOC flow is 2 MGD. the NH3 limit of 30 mg/1 (multiplier of 4.5) converts to 135 mg/1 CBOD. Existing BODS limit 0f 30 mg/1 (multiplier of 2) converts to 60 mg/1 CBOD. With these inputs the model predicts an initial DO min of 4.26 mg/1 at milept. 1.47 and further downstream a secondary DO sag of 4.06 mg/1 occurs. SOC flow of 0.6 MGD + Pre-SOC flow = Post-SOC flow of 2.6 MGD. @ 30 mg/1 NH3 and 30 mg/1 BODS. Model predicts a DO min. of 3.69 mg/1 @ milept. 1.47, and a secondary DO sag of 3.42, differences of 0.57 and 0.64 mg/l,respectively, and An exceedance of the 67b criteria. 2) lowered the SOC flow to 0.5 MGD, Post-SOC flow of 2.5 MGD, used same inputs and predicted DO mins. of 3.78 mg/1 @ milept. 1.47, and a secondary DO sag of 3.52, differences of 0.48 and 0.54 mg/1, respectively from the DO mins. predicted with by pre- SOC run. The secondary sag provides an exceedance of the 67b criteria. 3) lowered the SOC flow to 0.4 MGD, Post-SOC flow of 2.4 MGD, used same inputs and predicted DO mins. of 3.87 mg/1 @ milept. 1.47, and a secondary DO sag of 3.63, differences of 0.39 and 0.43 mg/1, respectively. These DO minimums meet the 67b criteria. Lenoir can have an additional 400,000 GPD flow (not the requested 600,000 GPD) during the SOC and the SOC NH3 limit of 30 mg/1. There is some concern because the predicted DO minimums that will occur during the SOC are well below the 5 mg/1 standard. We would recommend the shortest possible timetables be given to Lenoir for construction so that Lower Creek will not be too severely impacted during the life of the SOC. Attachment L Request Form for In -stream Assessment for 67(b) Analysis NAME OF FACILITY C i TY d F htuge E-Fe PERMIT * 4/C Od a3 98/ COUNTY h ME// REGION Aeo PERMITTED DESIGN FLOW ae' RECEIVING STREAM to c J / e,e6-Ex, SUBBASIN 3 7a l REGIONAL CONTACT J7 l BACKGROUND DATA: A. Why is SOC needed? (Facility is out of compliance with which effluent limits?) ''",.3-N If out of compliance with Flow limit, is it due to inflow/infiltration? . If I/1 is a problem, then how much of the additional flow requested is the I/I? B. SOC Request: 1. Monthly Average Wasteflow in the last year Z• 4 MGD (Pre-SOC Flow) Time period Averaged through 2. Current SOC Flow request' Flow: O • Co MGD (Flow added on during the Order) 3. Total plant flow (Post-SOC Flow) Flow: oZ. MGD (total of 1. and 2. above) 4. Is this an accurate flow balance for plant? Why/why not? p /e i f i2 ire- /195T yyea.r3 z,e n'/6.1) Are there any facilities that have recently gone off line? `-' No NOTE: The SOC may not include an addition of wasteflow; therefore B. above may not apply and the region should fill out all other parts of this form. In cases where the SOC involves violations of oxygen consuming or toxic limits, an evaluation may be necessary to predict the water quality standard violations instream. C. Please attach DMR summary for past year for all permitted parameters. If possible, include reports from previous years if facility has been under SOC for more than a year. .SFE "¢7Tistc 4 IL me,A-t!+S *YEA.) 1- ,Doe CdlisIEvGTA'\ c� J- e--ems,uT r'UIoD �icc` or)5 -e O/4 x" •�- ws. �i 5 ._ nM.dvcr H s Pb 12- w t+ ) e tt F /6-cr ,7 v,e -5 GlieV GFti3650I SESSION READY F'or:. TNPU7GKEX88S/h'iP COMPLIANCE EVALUATION ANALYSIS REPORT PAGE PERMIT--NC0023981 PIP-'`--091 REPORT PERIOD. 9510-9609 LOC----E FACILITY---LENOIR, CITY -LOWER CREEK WWTP DESIGN FLOW-- 4.0800 CLASS---4 LOCATION---LENOTR REGION/COUNTY --01 C ALDWELL 50050 00310 00530 00610 31616 50060 00300 TGP3;E, MONTH i / MGD SOD FES/ T S NH3 -N FEC COLT CHLC,RINE DO ERI7DPF LIMIT F 4.0600 F 30.00 F 30.0 7.00 F 200.0 NCI NOL 95 10 2.6108 15,27 10.8 4.43 23.0 507.483 6.73 LIMIT E 4.0800 F 30.00 F 76.0 NOL F ',200.0 NimL NOL NOL 95/11 2.0356 26,24 20.6 8.07 I .2 532.566 -'.68 3 35/12 1.8992 26.43 27.2 4.70 7.4 770.548 7.64 1 06/ 0 1 2.2298 MOW 28 . 1 6, 1 4 12,3 5 1 1. 8066 8, 1 3 96/02 2.1802 MIIMMNW gum 14.90 NUMMOMMV35S.310 8.11 2 96/03 1.6200 IMINVW OPMMIN, 12,03 40 . 5 4 1 7. 645 8, 3 1 LIMIT F 4,0800 F 30.00 F 30.0 7.00 F 200,0 NOL NOL NOL 96/04 1.5790 17.20 9.0 I2.25F 5.0 604.724 -.70 96/05 15.21 9.0 18.68F 7.2 602.419 7.36 96/06 2.6182 10.59 11.9 15.36E 9,7 297.600 7.11 96/07 1.7835 11.57 8.4 15.38F 3.2 635,612 7.i8 96/08 1 7 .89 1 1. 7 1 7. 15F 1 3 .4 438.032 6.80 96/09 3.1053 9.45 6.9 4.11 28.9 477.42k 7.06 AVERAGE 2.1461 33,74 MAXIMUM 6.2680 290.00 MINIMUM .7560 LESSTHAN UNIT h•i G G M G / L 24.8 11.10 131.3 513.347 7,49 1 630.0 47.90 380000.0 2538.000 9.90 3 3.0 .15 LESSTHAN LESSTHAN 5.90 1 h'iG/L MG/L #/ 100kL LIG/L h•IG/L PAS'S/FA.I GKEX88/MP COMPLIANCE EVALUATION ANALYSIS REPORT 11/22/96 PAGE 2 PERMIT--NC0023981 PIPE--001 REPORT PERIOD: 9510-9609 LOC----E FACILITY--LENOIR, CITY -LOWER CREEK WWTP DESIGN FLOW--- 4.0800 CLASSµ-4 LOCATION--LENOIR REGIC.N/COUNTY--01 CALDWELL 00010 00400 00600 00665 00720 01027 01042 01092 MONTH TEMP PH TOTAL N PHOS-TOT CYANIDE CADMIUM COPPER ZINC LIMIT NOL 9,0 6.0 NOL NOL NOL NOL 95/10 19.14 7.7-6.6 20.860 .3400 .0000 5.2500 16.0000 36.3333 LIMIT NOL 9.0 6.0 NOL NOL NOL NOL. 95/11 '15.20 7.5-6.6 31.940 1.5300 .0000 .0000 '11.5000 46,0000 95/12 12.05 7.5-6.5 9.400 1.2100 2.7500 .0000 8.0000 42.5000 96/01 9.87 7.3-6.3 18.040 .0000 5.2500 .0000 .0000 74.5000 96/02 10.94 7.7-6.5 19.650 .8500 2.0000 .0000 91.0000 206.5000 96/03 12.05 7.6-6.6 22.990 1.2500 .0000 .0000 17.0000 34.0000 LIMIT NOL 9.0 6.0 NOL. NOL NOL NOL. 96/04 15.30 7.4-6.6 28.560 1.3600 .0000 .0000 25.0000 53.0000 96/05 20.38 7.6-6.6 18.500 1.1200 .0000 2.3333 9.0000 52.0000 96/06 23.05 7.8-7.0 18,800 .6200 4.7500 .0000 12.6666 25.6666 96/07 24.52 7.6-6.8 17.900 .5800 96/08 24.56 7.6-6,7 14.600 .5200 .0000 ,0000 .0000 29.0000 96/09 21.65 7.3-6.6 3.5000 .0000 .0000 45.0000 AVERAGE MAXIMUM MINIMUM UNIT 17.39 26.00 6.00 DEG.0 7.800 6.300 Su 20.112 .8527 1.6590 .6893 17.2878 58.5909 31.940 1.5300 14.0000 21.0000 182.0000 398.0000 9.400 ,3400 9,0000 15.0000 MG/L. MG/L UG/L UG/L UG/L U z/L. Page 1 Note for Jackie Nowell From: Ruth Swanek Date: Mon, Dec 16, 1996 1:23 PM Subject: Lenoir Lower Ck WWTP To: Jackie Nowell cc: Carla Sanderson; Michelle Suverkrubbe Michelle called. She is doing a preliminary review of EA Lenoir has submitted (for completeness). They have included spec limits that we did in September 1994 for 5 and 7 MGD. Their EA is for 6 MGD. Would you quickly review file to determine if our old spec is good enough or whether you think we should do new one. If you think we should do new one, Michelle will include that in her comments to town. Make sure stream classification has not changed since 1994. Michelle is trying to draft letter to town this week, so please try to look into this ASAP. Let me know if questions. Thanks. Page 1 Note for Jackie Nowell From: Ruth Swanek Date: Tue, Dec 17, 1996 9:39 AM Subject: RE: Lenoir -Lower Creek WWTP To: Jackie Nowell Thanks Jackie. I guess my memory failed me on that one - I really had spaced out that current spec request. From: Jackie Nowell on Tue, Dec 17, 1996 9:35 AM Subject: Lenoir -Lower Creek WWTP To: Michelle Suverkrubbe; Ruth Swanek Cc: Carla Sanderson A speculative letter has already been submitted to our unit concerning Lenoir's expansion to 6 MGD. (from McKim & Creed, 11/26/96). The firm is preparing a 201 Facilities Plan for Caldwell Co. that includes 4 other municipalities. Based on our 1994 response to spec requests for 5 &7 MGD, it would seem that for 6 MGD, summer limits for BOD5 will be between 17 - 30 mg/1 and NH3 limits will be between 2 - 4 mg/l. Our response to the spec for both Lenoir plants, and two Granite Falls sites is scheduled be completed by the end of this month. We also have currently inhouse an instream assessment for an SOC that Lenoir -Lower Cr WWTP has requested . The plant has an average flow discharge of about 50% of its design flow of 4.08 MGD. There are problems meeting its permitted NH3 limit of 7 mg/1 and the SOC is for some relief while plant improvements are being made. They have requested an SOC NH3 limit of 30 mg/1 and additional flow of 600,000 GPD, but we are still reviewing whether this limit can be allowed and still meet the 67(b) criteria. (Our ARO contact is out of the office until the 20th and further discussion is needed on the SOC.) Please let me know if additional info is needed. From: "Jim Reid" <TS 19W76@aro.ehnr.state.nc.us> Organization: Asheville Region of NC - DEHNR To: Jackie@dem.ehnr.state.nc.us Date: Fri, 22 Nou 1996 16:53:04 + 1 100 Subject: Reply -to: read@aro.ehnr.state.nc.us Priority normal Jackie, I sent you an Attachment L (requesting an In -stream assessment) for an SOC. For some reason, the 2nd page was not attached. The only paramater for which relaxation of limits is proposed is ammonia. The proposed ammonia limit is 30.0 mg/I. The relaxed limit is based upon past plant performance plus expected operational disruption which will occur during the term of the SOC. Thank -you. If additional information is required, please contact me. WHOLE EFFLUENT TOXICITY TESTING OfSEL.F-MONITOILINOSUMMARY' Fri, Nov 15, 1996 MAY orr f1V c 11f II fri Islyl,l nl:nllil'rl _ �.. NonComp:Siogle r-r'r.rn rr.,ra 02 - 03 - 94 - 95 - 08 - "•� - - P. - - - - NR/Passl Pau "'_�' -- - - Paul - - - - - - - - - - Nei Pus - - - - - - - - - - Fall Pus Pass - - Paasl - - - - - - Pass Pau Leland Industrial Park WWTP Palm 241r pit ac lire: 90% Ahd Marina Sep Doc Nf.'00656761001 Begis:9/1/96 Frequency: Q A CouNy:Bmoswick Resta.:W1RO Subbula:CPP17 PP:0.25 Special 7Q10:600 IWC(%):0.065 Order: 52% NoaComp:Siogle 92 - 93 - 94 Pass 95 - 98 Pus - - - - - Fag Pau Pas■ Pass Pau Late - - - - Pus - - - - Pus Pass Pass Peas Pus - - - - - - - - - Pass Fall Pass Pans Fall - • Pau - - - - Pus Fall Pass Fag Lenoir- Gunpowder Creak WWTP Perm du lire: 38%; if pf 2MGD du lire NCD023736/001 Begin:5/1/95 Psequeacy: Q P/P A Mu Jua Sep Dec Cosaty:Caldwell Region: ARO Subbuis: C11332 PP:1.2 Special 7QI0:3.0 IWC(%):31.0 Onion NooComp:Slogle 92 - 03 - 94 - 95 - 98 - Pau Pass Fag Pus Fag - - Pus - Pus - - - - - Pass Pass Fag Fag Pass - - Pass Pus - - - - - - Fd Pass Pass Pau Pau Pass - - - - - - Pau Pass Past Fal - - Pus Lauds- Lower Creek WWTP Perm chr aim: 40% N00023981A01 Beg(n:6/1/95 Forqueary: Q P/P A Kb May Aug Nov Coeety:Caldwell Regios:ARO Subbaaie:CT➢31 PP:4.04 Special 7Q10:9.3 I%):40 Olden W( NooComp:SINGL. Y 92 - 93 - 94 - 95 - 98 - Pass( Pau(s) Pau Pus Pus - - - - - - - - - - Pass Pass Pass Pus Pass Pass Pus - - - - - Pau - - Pass Pus Pau Pass Pass - - - - - - - - Pass Pau Pau Pass - - - Islington Regional WWTP PERM CIIR LIM: 56% Feb May Aug Nov NC00557961001 Begin:611/94 Iioquency: Q PA, A Co.ety:Dsvidres Regioe: WSRO Subbari,: YAe)07 PP:5.50 Spacial 7Q10:6.70 IWC(%1:55.99 Ostia: (GRAB) No.Comp:SINGtB 02 - 93 - 94 - 95 - 98 - - - - - Pass - - - Paul - - - - - - - - - Paid P Pus -- - - - - - - - - - - - Pus- s Pu.l - - - - - - - Pau - - - t.IbbeyOwsne Ford Co. PERM: 2411R P/F AC LIM 90% FTIID NC00495141001 Begia:211/95 Frequency: Q A Onaer &Cal Qa Couacy:Scotland Regios:FRO Subbaslo:LUMSS PP: VAR Special 7Q10:0.0 IWC1%4:100.0 pales MORT@ 90% PTIID NonComp:SINGI.R 92 Passl 03 - 94 BII 95 -. 98 - Paul - Fay' - - Paul Pasa! 64.91,82.31t Paasl,Falll Pass Paasl - Pass, - - >100',Pus - - - - Pus1 Faisal Panel Pass Pass Pass, - - - - Pa.e1 - - - - Pau' NFLPassl Paul Pass Pass Pus, - Panel - Paul 10LLats Pass! Pass Uberly Fabrics, lac PERM:2411R P/P AC LIM NO AC NC00237101001 Begin:l/I/92 Faxpeacy:Q A Mar Jun Sep Doe County: Muria Region: WARO Subbeilo: ROA09 PP:0.45, Special 7Q10: 1200 IWO(%):0.06 Ouch: NonComp:Siaglo 92 Pass! 93 Paul 94 30.91 05 Paul 98 Pus - - 62.31 Fall - - - 21.21.<12.51 Fall - Passl Paull >1001 Paul Pee■ - - 35.41 Paul - - - 49.21 Pus - Pais, Full Paest,Pasal Fal.Fal Pau - NR - NR/Pus - - Fail - Pass - Pass! NI FaW,Fal1 Pass Pau - 48.01 Fall - NMeu Fall PSIS I.1111ogloa WWTP Perm 24 hr pa ac lim: 90% NC0021636001 Bogie:5/1196 F q...cy: Q A fan Apr Jul Oct County:Damen Region:FRO Subbasio:CPF07 PP:076 Special 7010, 550.0 IWC(%):0.17 Oslo: NooComp:Siagle 92 - 93 - D4 - 95 - 98 - - - - - - Pass Pass Pau Paso Pass - - - - - - - - - - Pass Pass Pus Fd Psi. - - - Pus - - - - - - Pass Pass Fd Fd Pass - - Pass Pau - - - Pass Pass Pass Pus IAacolaloo WWTP Perm cbr lim: I I% Jun Sep Dec NC0025496/001 Begia:9/1/95 Rrxpeocy Q P/P A Mee Ceuoty;Liacola Region:MRO Subbuia:C1➢35 PP:6.0 Special 7Q10:77.0 IWC(%):II.0 Ostler: BEGIN 1/I/96 LIM @ 78% Y 92 4.1 NonComp: 93 <26.81 94 >100 98 8.2) Fd 01 91 a100 - Fal 91 81 81.23 - Fa0,4.1% 91 >100 <26 88 Fd Lau >100 <25 - Fag Fd,79,35 >100 35.4 >100(8) 4.1,Fsg N141I6 8B 35.4 Pend(a) Fel 35 >100 36.3 Fag >100 78.6 88 4.1,Fs8 N 88.3 81 Fal >100 88 3.37 a 35 48 36 •t Lithium Corp PERM CIIR MONIT:78% (GRAB); NC00051771001 Begia:3/1/94 Frequency: Q P/P Jan Apr Jul Oct County:Guam Region: MRO Subbasio: CT1337 PF:0.616 Special1.2 7QIOE 0.27 IWC(%pecia ):78 NonComp:SING111 02 NR 93 Pass 94 11 95 Pau 98 Pass - - Pass - - - - - - - Pass Fd Pass M NI Pass - Pass - Pa u - - - - - - Fal Pass Pass Pass Pass Pass - - - - - - - - Pass Peso Paso Pala as id WNar Paso Y.aa - -_ _ - Y w LIl11a fluff, IaeJMorrlalowa Groc PERM CIIR LIM: 90%(GRAB) N00075426/001 Begio:7llA4 Frequency: Q P/P A Jan Apr Jul Oa Coumty:Preso' Region:RRO Subbuin:NElJ01 PP:0.014 Special 7Q10:00 IWC(%):100.0 Ord= No.Comp:SINGLII 92 Pus 93 Pass 94 Po.. 95 Pus 98 Pass - - - - - - - - Pass Fail NFWaw Pass Pam- P. - Pau - - - - - - - - Fag Fd Pass Pau NAM Pass Pau - - - - - _ Lillie IlufUElllol's Paris PERM CIIR LIM: 90% (GRAB) N000718711001 Begin:2/1/95 Ii.equensy: Q P/P A Jan Apr Jul Oa Couory:C.nvillo Rcgim:RRO Suhbain:TAR01 PP:0.0015 Special 7QI0:00 1WC(%) 100 Oafs- 0 2 consecutive failures s significant ooscompli.aoe IEGE40. ~ PERM e. Permit Requirement LET s Administrative Ldtcr -Target Frequency se Monitoring frequency: Q- Quarterly; M. Monthly; BM- Bimonthly; SA- Semiannually; A. Annually; OWD- Only when discharging: 0- Dlecoodows.1 we...7al "v""•Basin s Rat month required 7Q10 = Receiving stream low flow criterion (ch) A o qquartudy monitoring increases to monthly upon single failure Months that testing must occur - ca. JAN,APR.IIJL,OCf NuoCoap - C."' t."""y��PP s Permitted flow (MGD) (WC%= Instscarn waste cooamratim P/F = P.sc/Pail chronic test AC a AcuteCIIR = Chronic"`- Dslallouum: f. Fathead Minnow; • - Cetiodaohni. see.: my - Mvsid shrimp; CIV - C5ronic value; P - Mortality of stated percentue at hiducst concentration; at - Pc,formcJ by DEM Too Eva Group; bi - Bad user J• "'r" Repeals; Wallow -• = Du. Rat required; NR • Nal reported; ( ) - Begiaaing of Quarter Facility Activity Status: 1 - Inactive. N - Newly luucd(fo coaslmct); 1I - Active but as discluuging; (More data available lot ewer. la s.e., 30 Y Pre 1992 Data Available SUMMER PRE SOC FLOW, SOC NH3=30 Discharger Receiving Stream MODEL RESULTS : LENOIR-LOWER CR : LOWER CREEK The End D .O. is 6.29 mg/1. Thia End CBOD is 5.59 mg/1. The End NBOD is 8.31 mg/1. WLA WLA WLA DO Min CBOD NBOD DO Waste Flow (mg/1) Mi l epoi nt Reach # (mg/1) (mg/1) (mg/1) (mgd) Segment 1 4.26 1.47 2 . Reach 1 60.00 135.00 5.00 2.00000 Reach 2 0.00 0.00 0.00 0.00000 1 Segment 2 6.17 0.00 1 9each 1 45.00 21.15 0.00 0.02000 S4gment 3 4.06 0.45 1 Feach 1 0.00 0.00 0.00 0.00000 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 45.00 90.00 0.00 0.00500 Reach 7 0.00 0.00 0.00 0.00000 Reach 8 0.00 0.00 0,00 0.00000 *** MODEL SUMMARY DATA *** Qischarger : LENOIR-LOWER CR Receiving Stream : LOWER CREEK Summer 7Q10 : 9.3 Design Temperature: 25.0 Subbasin : 030831 Stream Class: C Winter 7Q10 : 17.7 'LENGTH' SLOPE' VELOCITY 1 DEPTH' Kd 1 Kd I Ka 1 Ka 1 KN I KN I KNR 1 KNR 1 S00 1 SOD I mile 1 ft/mil fps 1 ft (design) @20° 'design' @20° Idesignl @20° 'design' @20° 'design l @20° I I I 1 1 1 1 1 1 1 1 1 1 1 Segment 1 1 0.751 5,301 0,303 11.66 1 0.29 1 0.23 1 2.32 1 2.091 0.44 10.30 1 0.44 1 0.00 10.00 10.00 Reach 1 1 1 I I I I I I I I I I I I I I I Segment 1 I 0.721 5.301 0.321 (1.73 1 0.29 ( 0.23 12.46 I 2.211 0.44 1 0.30 10.44 10.00 10.00 1 0.00 Reach 2 1 I I I I I I I I I I I I I I I I Segment 2 1 0.201 40.001 0.100 1 0.35 1 0.44 i 0.35 18.03 I 7.201 0.73 1 0.50 10.73 10.00 0.00 10.00 Reach 1 1 I I I I I I I I I I I I I I I I I I I I I I I I I I Segment 3 I 0.451 5.301 0.328 1 1.75 10.29 1 0.23 12.52 1 2.261 0.44 10.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 1 1 I I 1 I I I 1 I I 1 1 I I I I I I I I I I I I I I Segment 3 1 0.901 5.301 0.340 1 1.80 1 0.29 1 0.23 1 2.61 I 2.341 0.44 1 0.30 1 0.44 1 0.00 10.00 i 0.00 Reach 2 I I I 1 1 I 1 1 I I I I I I I I I I I I I I I I I I I Segment 3 1 0.601 5.301 0.351 11.84 1 0.29 10.23 12.70 I 2.421 0.44 10.30 1 0.44 10.00 1 0.00 10.00 Reach 3 1 I I I I 1 I I I I 1 1 I I I I I I I I I I I I ( I Segment 3 1 1.001 6.801 0.387 11.80 1 0.30 1 0.24 13.82 I 3.421 0.44 1 0.30 10.44 1 0.00 10.00 1 0.00 Reach 4 1 I I I 1 I 1 I 1 1 1 I I I I I I I I I I I I I I I Segment 3 1 1.001 6.801 0.429 1 1.93 10.30 10.24 1 4.23 I 3.791 0.44 10.30 1 0.44 10,00 10.00 1 0.00 Reach 5 1 I I I 1 1 I I 1 1 1 1 I I I I I I I I I I I I I I Segment 3 1 0.031 6.801 0.440 11.94 10.30 10.24 1 4.34 1 3.891 0.44 1 0.30 1 0.44 10.00 1 0.00 1 0.00 Reach 6 1 I I 1 I 1 1 I 1 1 I I I I I I I I I I I I I I I I Segment 3 1 1.801 6.801 0.441 1 1.95 1 0.30 1 0.24 1 2,94 1 2.641 0.44 1 0.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 1 I I I 1 1 1 1 1 1 1 1 1 I I I I I I I I I I I I I I Segment 3 1 1.901 6.801 0.458 1 2.03 1 0.30 1 0.24 1 3.06 1 2.741 0.44 1 0.30 1 0,44 1 0.00 1 0.00 1 0.00 Reach 8 1 I I 1 1 1 1 1 1 1 1 1 I 1 Flow 1 CBOD 1 NBOD 1 D.O. 1 I cfs I mg/l I mg/1 I mg/l I Segment 1 Reach 1 Waste 1 3.100 1 60.000 1135.000 1 5.000 1-IAadwAtarc J 4_ qnn I 9_ nnn I l _nnn I 7_ LLn Tributary 1 0.000 ( 2.000 C 1.000 * Runoff 1 0.210 1 2.000 1 1.000 7.440 7.440 Segment 1 Reach 2 Waste 1 0.000 Tributary 1 1.630 * Runoff 1 0.670 0.000 2.000 2.000 0.000 1.000 1.000 Segment 2 Reach 1 Waste ( 0.031 1 45.000 1 21.150 Headwaters) 0.150 1 2.000 1 1.000 Tributary 0.000 2.000 ( 1.000 * Runoff 1 0.000 1 2.000 1 1.000 Segment 3 Reach 1 Waste 1 0.000 Headwaters) 0.000 Tributary j 0.000 * Runoff 1 1.230 0.000 2.000 2.000 2.000 0.000 1.000 1.000 1.000 0.000 7.440 7.440 0.000 7.440 7.440 7.440 0.000 7.440 7.440 7.440 Segment 3 Reach 2 Waste ( 0.000 1 0.000 1 0.000 1 0.000 Tributary ( 0.580 ( 2.000 1 1.000 ( 7.440 * Runoff 1 1.230 1 2.000 1 1.000 1 7.440 Segment 3 Reach 3 Waste 1 0.000 Tributary ( 0.320 * Runoff 1 1.230 0.000 2.000 2.000 0.000 1.000 1.000 0.000 7.440 7.440 Segment 3 Reach 4 Waste 1 0.000 0.000 I 0.000 1 0.000 Tributary 1 0.000 ( 2.000 1 1.000 1 7.440 * Runoff 1 1.230 1 2.000 1 1.000 1 7.440 Segment 3 Reach 5 Waste 1 0.000 Tributary ( 3.710 * Runoff 1 1.760 0.000 2.000 2.000 0.000 1.000 1.000 0.000 7.440 7.440 Segment 3 Reach 6 Waste 1 0.008 1 45.000 ( 90.000 ( 0.000 Tributary ( 0.000 1 2.000 1 1.000 1 7.440 * Runoff 1 0.147 1 2.000 1 1.000 1 7.440 Segment 3 Reach 7 Waste 1 0.000 Tributary 1 0.220 * Runoff 1 0.147 Segment 3 each 8 Waste 0.000 Tributary 2.640 * Runoff 0.420 0.000 2.000 2.000 0.000 2.000 2.000 0.000 1.000 1.000 0.000 1.000 1.000 0.000 7.440 7.440 0.000 7.440 7.440 SUMMER PRE SOC FLOW, SOC NH3=30 Seg # I Reach # I Seg Mi 1 D.O. 1 1 0.00 6.83 1 1 0.05 6.67 1 1 0.10 6.51 1 1 0.15 6.35 1 1 0.20 6.20 1 1 0.25 6.05 1 1 0.30 5.91 1 1 0.35 5.78 1 1 0.40 5.64 1 1 0.45 5.51 1 1 0.50 5.39 1 1 0.55 5.27 1 1 0.60 5.15 1 1 0.65 5.04 1 1 0.70 4.93 1 1 0.75 4.82 1 2 0.75 5.12 1 2 0.78 5.08 1 2 0.81 5.03 1 2 .840.1 4.99 1 2 0.87 4.94 1 2 0.90 4.90 1 2 0.93 4.86 1 2 0.96 4.82 1 2 0.99 4.78 1 2 1.02 4.74 1 2 1.05 4.70 1 2 1.08 4.67 1 2 1.11 4.63 1 2 1.14 4.59 1 2 1.17 4.56 1 2 1.20 4.53 1 2 1.23 4.49 1 2 1.26 4.46 1 2 1.29 4.43 1 2 1.32 4.40 1 2 1.35 4.37 1 2 1.38 4.34 1 2 1.41 4.32 1 2 1.44 4.29 1 2 1.47 4.26 2 1 0.00 6.17 2 1 0.01 6.22 2 1 0.02 6.28 2 1 0.03 6.33 2 1 0.04 6.38 2 1 0.05 6.42 2 1 0.06 6.47 2 1 0.07 6.51 2 1 0.08 6.55 2 1 0.09 6.59 2 1 0.10 6.63 2 1 0.11 6.66 2 1 0.12 6.70 2 1 0.13 6.73 2 1 0.14 6.76 2 1 0.15 6.79 2 1 0.16 6.82 2 1 0.17 6.85 2 1 0.18 6.87 2 1 0.19 6.90 2 1 0.20 6.92 CBOD 16.50 16.44 16.38 16.32 16.26 16.20 16.14 16.08 16.03 15.97 15.91 15.85 15.79 15.74 15.68 15.62 14.06 14.02 13.98 13.94 13.90 13.86 13.82 13.78 13.74 13.70 13.66 13.62 13.59 13.55 13.51 13.47 13.43 13.39 13.36 13.32 13.28 13.24 13.21 13.17 13.13 9.36 9.34 9.31 9.29 9.26 9.24 9.21 9.19 9.16 9.14 9.12 9.09 9.07 9.04 9.02 8.99 8.97 8.94 8.92 8.90 8.87 NBOD 34.50 34.32 34.14 33.96 33.78 33.60 33.43 33.25 33.08 32.90 32.73 32.56 32.39 32.22 32.05 31.88 28.33 28.22 28.11 28.00 27.89 27.79 27.68 27.57 27.47 27.36 27.25 27.15 27.04 26.94 26.84 26.73 26.63 26.53 26.43 26.32 26.22 26.12 26.02 25.92 25.82 4.45 4.43 4.41 4.39 4.37 4.35 4.33 4.31 4.29 4.27 4.26 4.24 4.22 4.20 4.18 4.16 4.14 4.12 4.11 4.09 4.07 Flow 12.40 12.41 12.42 12.43 12.44 12.45 12.46 12.47 12.48 12.49 12.51 12.52 12.53 12.54 12.55 12.56 14.19 14.21 14.23 14.25 14.27 14.29 14.31 14.33 14.35 14.37 14.39 14.41 14.43 14.45 14.47 14.49 14.51 14.53 14.55 14.57 14.59 14.61 14.63 14.65 14.67 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 3 1 0.00 .4.29 13.08 25.56 14.85 3 1 0.05 4.26 13.00 25.35 14.91 3 1 0.10 4.23 12.92 25.15 14.97 3 1 0.15 4.20 12.84 24.95 15.04 3 1 0.20 4.17 12.76 24.75 15.10 3 1 0.25 4.15 12.68 24.55 15.16 3 1 '0.30 4.12 12.61 24.36 15.22 3 1 0.35 4.10 12.53 24.16 15.28 3 1 0.40 4.08 12.46 23.97 15.34 3 1 0.45 4.06 12.38 23.78 15.40 3 2 0.45 4.18 12.00 22.95 15.98 3 2 0.55 4.16 11.87 22.61 16.11 3 2 0.65 4.14 11.73 22.27 16.23 3 2 0.75 4.12 11.60 21.93 16.35 3 2 0.85 4.11 11.47 21.60 16.48 3 2 0.95 4.10 11.34 21.28 16.60 3 2 1.05 4.09 11.21 20.97 16.72 3 2 1.15 4.09 11.08 20.66 16.85 3 2 1.25 4.09 10.96 20.35 16.97 3 2 1.35 4.10 10.84 20.05 17.09 3 3 1.35 4.16 10.68 19.70 17.41 3 3 1.45 4.17 10.56 19.42 17.53 3 3 1.55 4.18 10.45 19.15 17.66 3 3 1.65 4.20 10.34 18.88 17.78 3 3 1.75 4.22 10.23 18.61 17.90 3 3 1.85 4.23 10.12 18.35 18.03 3 3 1.95 4.25 10.02 18.09 18.15 3 4 1.95 4.25 10.02 18.09 18.15 3 4 2.05 4.34 9.92 17.85 18.27 3 4 2.15 4.43 9.82 17.62 18.40 3 4 / 2.25 4.51 9.72 17.38 18.52 3 4 2.35 4.58 9.62 17.16 18.64 3 4 2.45 4.66 9.53 16.93 18.76 3 4 2.55 4.73 9.43 16.71 18.89 3 4 2.65 4.80 9.34 16.50 19.01 3 4 2.75 4.86 9.25 16.28 19.13 3 4 2.85 4.92 9.16 16.07 19.26 3 4 ` 2.95 4.98 9.07 15.87 19.38 3 5 2.95 - 5.38 7.94 13.48 23.09 3 5 3.05 5.45 7.86 13.30 23.27 3 5 3.15 5.51 7.78 13.12 23.44 3 5 3.25 5.58 7.70 12.95 23.62 3 a 3.35 5.64 7.63 12.78 23.79 3 5 3.45 5.69 7.55 12.62 23.97 3 5 3.55 5.75 7.48 12.45 24.15 3 5 3.65 5.80 7.41 12.29 24.32 3 5 3.75 5.85 7.34 12.14 24.50 3 5 3.85 5.90 7.27 11.98 24.67 3 5 3.95 5.94 7.20 11.83 24.85 3 6 3.95 5.94 7.21 11.85 24.86 3 6 3.96 5.95 7.21 11.85 24.86 3 6 3.97 5.95 7.21 11.84 24.86 3 6 3.98 5.95 7.20 11.83 24.86 3 7 3.98 5.97 7.16 11.73 25.08 3 7 4.08 5.96 7.12 11.66 25.10 3 7 4.18 5.95 7.09 11.58 25.11 3 7 4.28 5.95 7.06 11.50 25.13 3 7 4.38 5.94 7.03 11.43 25.14 3 7 4.48 5.94 6.99 11.35 25.16 3 7 4.58 5.94 6.96 11.28 25.17 3 7 4.68 5.93 6.93 11.20 25.18 3 7 4.78 5.93 6.90 11.13 25.20 3 7 4.88 5.93 6.86 11.05 25.21 3 7 4.98 5.93 6.83 10.98 25.23 3 7 5.08 5.93 6.80 10.91 25.24 3 7 5.18 5.93 6.77 10.84 25.26 .3 7 5.28 5.93 3, 7 5.38 5.94 3 7 5.48 5.94 3 7 5.58 5.94 3 7 5.68 5.94 3 7 5.78 5.95 3 8 5.78 6.09 3 8 5.88 6.10 3 8 5.98 6.11 3 8 6.08 6.12 3 8 6.18 6.13 3 8 6.28 6.14 3 8 6.38 6.15 3 8 6.48 6.16 3 8 6.58 6.17 3 8 6.68 6.18 3 8 6.78 6.19 3 8 6.88 6.20 3 8 6.98 6.21 3 8 7.08 6.22 3 8 7.18 6.23 3 8 7.28 6.24 3 8 7.38 6.25 3 8 7.48 6.26 3 8 7.58 6.28 3 8 7.68 6.29 Seg # ( Reach # I Seg Mi I D.O. 6.74 6.71 6.68 6.65 6.62 6.59 6.15 6.12 6.09 6.06 6.03 6.00 5.97 5.94 5.91 5.88 5.85 5.82 5.79 5.76 5.73 5.71 5.68 5.65 5.62 5.59 CBOD 10.76 25.27 10.69 25.29 10.62 25.30 10.55 25.32 10.48 25.33 10.41 25.35 9.52 27.99 9.46 28.03 9.39 28.07 9.32 28.11 9.25 28.15 9.19 28.20 9.12 28.24 9.06 28.28 8.99 28.32 8.93 28.36 8.86 28.41 8.80 28.45 8.74 28.49 8.67 28.53 8.61 28.57 8.55 28.62 8.49 28.66 8.43 28.70 8.37 28.74 8.31 28.78 NBOD I Flow I SUMMER REQUESTED SOC QW= 2.6 MGD, SOC NH3=30 MG/L, VIOLATES 67B Discharger Receiving Stream MODEL RESULTS : LENOIR-LOWER CR : LOWER CREEK The End D.O. is 5.88 mg/1. The End CBOD is 6.72 mg/1. The End NBOD is 10.51 mg/1. Segment 1 Reach 1 Reach 2 Segment 2 Reach 1 Segment 3 Reach 1 Reach 2 Reach 3 Reach 4 Reach 5 Reach 6 Reach 7 Reach 8 WLA WLA WLA DO Min CBOD NBOD DO Waste Flow (mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd) 3.69 6.17 3.42 1.47 2 60.00 135.00 0.00 0.00 0.00 1 45.00 21.15 1.35 2 0.00 0.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 90.00 0.00 0.00 5.00 2.60000 0.00 0.00000 0.00 0.02000 0.00 0.00000 0.00 0.00000 0.00 0.00000 0.00 0.00000 0.00 0.00000 0.00 0.00500 0.00 0.00000 0.00 0.00000 *** MODEL SUMMARY DATA *** Discharger : LENOIR-LOWER CR Receiving Stream : LOWER CREEK Summer 7Q10 : 9.3 Design Temperature: 25.0 Subbasi n : 030831 Stream Class: C Winter 7Q10 : 17.7 'LENGTH' SLOPE' VELOCITY 1 DEPTH' Kd 1 Kd 1 Ka 1 Ka 1 KN 1 KN 1 KNR 1 KNR 1 SOD 1 SOD I mile 1 ft/mil fps 1 ft 'design l 020° Idesignl 020° 'design' @20° Idesignl 020° 'design' @20° I I I 1 1 1 1 1 I Segment 1 1 0.751 5.301 0.319 l 1.67 1 0.29 1 0.23 1 2.45 1 2.201 0.44 ( 0.30 1 0.44 1 0.00 0.00 1 0.00 Reach 1 1 1 I 1 1 1 1 1 I 1 1 1 I I I I 1 1 1 1 1 I 1 1 1 I I Segment 1 1 0.721 5.301 0.336 1 1.75 1 0.29 1 0.23 1 2.58 1 2.311 0.44 1 0.30 1 0.44 1 0.00 10.00 1 0.00 Reach 2 1 1 I 1 1 1 1 1 I 1 1 1 I I I I 1 1 1 1 1 I 1 1 1 1 I Segment 2 1 0.201 40.001 0.100 1 0.35 10.44 10.35 1 8.03 1 7.201 0.73 1 0.50 1 0.13 1 0.00 1 0.00 1 0.00 Reach 1 1 1 I 1 1 1 1 1 I 1 1 1 1 I I I 1 1 1 1 1 I 1 1 1 I I Segment 3 1 0.451 5.301 0.343 1 1.11 1 0.29 1 0.23 1 2.64 1 2.361 0.44 1 0.30 1 0.44 1 0.00 1 0.00 1 0,00 Reach 1 1 1 I 1 1 1 1 1 I 1 1 1 I I I I 1 1 1 1 1 I 1 1 1 I I Segment 3 1 0.901 5.301 0.354 1 1.81 1 0.29 1 0.23 1 2.12 1 2.441 0.44 1 0.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 2 1 1 I 1 1 1 1 1 I 1 1 1 I I I I 1 1 1 1 1 I 1 1 1 I I Segment 3 1 0.60I 5.301 0.365 1 1.85 1 0.29 1 0.23 1 2.80 1 2.511 0.44 1 0.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 3 1 1 I 1 1 1 1 1 I 1 1 1 I I I I I I I 1 1 I 'I 1 1 I I Segment 3 1 1.001 6.801 0.401 1 1,81 1 0.30 1 0.24 1 3.96 1 3.551 0.44 10.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 4 I 1 I 1 1 1 1 1 I 1 1 1 I I I I 1 1 1 1 1 I 1 1 1 I I Segment 3 1 1.001 6.801 0.441 1 1.94 1 0.30 1 0.24 1 4.35 1 3.901 0.44 1 0.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 5 I 1 I 1 1 1 1 1 I 1 1 1 I I I I 1 1 1 1 1 I 1 1 1 I I Segment 3 1 0.03) 6.801 0.452 1 1.95 1 0,30 1 0.24 1 3.02 1 2.711 0.44 1 0.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 6 I 1 I 1 1 1 1 1 1 1 1 1 I I I I 1 1 1 1 1 I 1 1 1 I I Segment 3 1 1.801 6.801 0.453 1 1.96 1 0.30 1 0.24 1 3.02 1 2.711 0.44 1 0.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 7 I I I 1 1 1 1 1 I 1 1 1 I I I I 1 1 1 1 1 I 1 1 1 l I Segment 3 1 1.901 6.801 0.469 1 2.04 1 0.30 1 0.24 1 3.13 1 2.811 0.44 1 0.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 8 I I I 1 1 1 1 1 I 1 1 1 I I Flow ,1 CBOD 1 NBOD I D.O. 1 cfs 1 mg/1 1 mg/1 1 mg/1 1 Segment 1 Reach 1 Waste I 4.030 160.000 1135.000 I 5.000 Headwatersi 9.100 I 2.000 I 1.000 I 7.440 Tributary 1 0.000 1 2.000 1 1.000 1 7.440 * Runoff 1 0.210 1 2.000 1 1.000 1 7.440 Segment 1 Reach 2 Waste 1 0.000 1 0.000 1 0.000 1 0.000 Tributary 1 1.630 1 2.000 1 1.000 1 7.440 * Runoff 1 0.670 1 2.000 1 1.000 1 7.440 Segment 2 Reach 1 Waste 1 0.031 145.000 1 21.150 Headwaters) 0.150 1 2.000 1 1.000 Tributary 1 0.000 1 2.000 1 1.000 * Runoff 1 0.000 1 2.000 1 1.000 Segment 3 Reach 1 Waste 1 0.000 Headwaters) 0.000 Tributary 1 0.000 * Runoff 1 1.230 0.000 2.000 2.000 2.000 0.000 1.000 1.000 1.000 0.000 7.440 7.440 7.440 0.000 7.440 7.440 7.440 Segment 3 Reach 2 Waste 1 0.000 1 0.000 1 0.000 1 0.000 Tributary 1 0.580 ( 2.000 ( 1.000 1 7.440 * Runoff 1 1.230 1 2.000 1 1.000 1 7.440 Segment 3 Reach 3 Waste 1 0.000 1 0.000 1 0.000 1 0.000 Tributary 1 0.320 ( 2.000 1 1.000 ( 7.440 * Runoff 1 1.230 1 2.000 1 1.000 1 7.440 Segment 3 Reach 4 Waste 1 0.000 Tributary 1 0.000 * Runoff 1 1.230 Segment 3 Reach 5 Waste 1 0.000 Tributary 1 3.710 * Runoff 1 1.760 0.000 2.000 2.000 0.000 2.000 2.000 0.000 1.000 1.000 0.000 1.000 1.000 Segment 3 Reach 6 Waste 1 0.008 1 45.000 ( 90.000 Tributary 1 0.000 1 2.000 ( 1.000 * Runoff 1 0.147 1 2.000 1 1.000 Segment 3 Reach 7 Waste 1 0.000 Tributary 1 0.220 * Runoff 1 0.147 0.000 2.000 2.000 0.000 1.000 1.000 0.000 7.440 7.440 0.000 7.440 7.440 0.000 7.440 7.440 0.000 7.440 7.440 Segment 3 Reach 8 Waste 1 0.000 1 0.000 1 0.000 1 0.000 Tributary ( 2.640 ( 2.000 1 1.000 1 7.440 * Runoff 1 0.420 1 2.000 1 1.000 1 7.440 Seg # I Reach # I Seg M; I D.O. 1 CBOD 1 1 0.00 6.70 19.53 1 1 0.05 6.51 19.47 1 1 0.10 6.33 19.40 1 1 0.15 6.15 19.33 1 1 0.20 5.98 19.27 1 1 0.25 5.81 19.20 1 1 0.30 5.65 19.13 1 1 0.35 5.49 19.07 1 1 0.40 5.34 19.00 1 1 0.45 5.19 18.93 1 1 0.50 5.05 18.87 1 1 0.55 4.91 18.80 1 1 0.60 4.77 18.74 1 1 0.65 4.64 18.67 1 1 0.70 4.51 18.61 1 1 0.75 4.39 18.54 1 2 0.75 4.72 16.76 1 2 0.78 4.67 16.71 1 2 0.81 4.61 16.67 1 2 0.84 4.56 16.62 1 2 0.87 4.51 16.58 1 2 0.90 4.46 16.53 1 2 0.93 4.41 16.49 1 2 0.96 4.36 16.44 1 2 0.99 4.31 16.40 1 2 1.02 4.26 16.35 1 2 1.05 4.22 16.31 1 2 1.08 4.18 16.26 1 2 1.11 4.13 16.22 1 2 1.14 ` 4.09 16.17 1 2 1.17 1 4.05 16.13 1 2 1.20 I 4.01 16.09 1 2 1.23 3.97 16.04 1 2 1.26 3.93 16.00 1 2 1.29 3.89 15.96 1 2 1.32 3.86 15.91 1 2 1.35 3.82 15.87 1 2 1.38 3.79 15.83 1 2 1.41 3.75 15.78 1 2 1.44 3.72 15.74 1 2 1.47 3.69 15.70 2 1 0.00 6.17 9.36 2 1 0.01 6.22 9.34 2 1 0.02 6.28 9.31 2 1 0.03 6.33 9.29 2 1 0.04 6.38 9.26 2 1 0.05 6.42 9.24 2 1 0.06 6.47 9.21 2 1 0.07 6.51 9.19 2 1 0.08 6.55 9.16 2 1 0.09 6.59 9.14 2 1 0.10 6.63 9.12 2 1 0.11 6.66 9.09 2 1 0.12 6.70 9.07 2 1 0.13 6.73 9.04 2 1 0.14 6.76 9.02 2 1 0.15 6.79 8.99 2 1 0.16 6.82 8.97 2 1 0.17 6.85 8.94 2 1 0.18 6.87 8.92 2 1 0.19 6.90 8.90 2 1 0.20 6.92 8.87 1 SUMMER REQUESTED SOC QW= 2.6 MGD, SOC NH3=30 MG/L, VIOLATES 67B NBOD 1 Flow 1 41.51 13.33 41.31 13.34 41.10 13.35 40.90 13.36 40.69 13.37 40.49 13.38 40.29 13.39 40.09 13.40 39.89 13.41 39.69 13.42 39.49 13.44 39.30 13.45 39.10 13.46 38.91 13.47 38.72 13.48 38.52 13.49 34.48 15.12 34.35 15.14 34.22 15.16 34.10 15.18 33.97 15.20 33.85 15.22 33.72 15.24 33.60 15.26 33.47 15.28 33.35 15.30 33.23 15.32 33.11 15.34 32.99 15.36 32.86 15.38 32.74 15.40 32.62 15.42 32.50 15.44 32.39 15.46 32.27 15.48 32.15 15.50 32.03 15.52 31.91 15.54 31.80 15.56 31.68 15.58 31.57 15.60 4.45 0.18 4.43 0.18 4.41 0.18 4.39 0.18 4.37 0.18 4.35 0.18 4.33 0.18 4.31 0.18 4.29 0.18 4.27 0.18 4.26 0.18 4.24 0.18 4.22 0.18 4.20 0.18 4.18 0.18 4.16 0.18 4.14 0.18 4.12 0.18 4.11 0.18 4.09 0.18 4.07 0.18 .3 1 0.00 3.73 15.62 31.25 15.78 3 1 0.05 3.69 15.53 31.01 15.84 3 1 0.10 3.65 15.43 30.77 15.90 3 1 0.15 3.61 15.34 30.54 15.97 3 1 0.20 3.58 15.25 30.31 16.03 3 1 0.25 3.54 15.16 30.08 16.09 3 1 0.30 3.51 15.07 29.85 16.15 3 1 0.35 3.48 14.99 29.62 16.21 3 1 0.40 3.46 14.90 29.40 16.27 3 1 0.45 3.43 14.81 29.18 16.33 3 2 0.45 3.57 14.37 28.21 16.91 3 2 0.55 3.53 14.21 27.80 17.04 3 2 0.65 3.50 14.05 27.40 17.16 3 2 0.75 3.48 13.90 27.01 17.28 3 2 0.85 3.46 13.74 26.62 17.41 3 2 0.95 3.44 13.59 26.24 17.53 3 2 1.05 3.43 13.45 25.87 17.65 3 2 1.15 3.43 13.30 25.50 17.78 3 2 1.25 3.42 13.16 25.14 17.90 3 2 1.35 3.42 13.01 24.79 18.02 3 3 1.35 3.49 12.82 24.37 18.34 3 3 1.45 3.50 12.69 24.04 18.46 3 3 1.55 3.51 12.56 23.71 18.59 3 3 1.65 3.53 12.43 23.39 18.71 3 3 1.75 3.54 12.30 23.07 18.83 3 3 1.85 3.56 12.17 22.76 18.96 3 3 1.95 3.58 12.05 22.45 19.08 3 4 1.95 3.58 12.05 22.45 19.08 3 4 2.05 3.68 11.93 22.17 19.20 3 4 2.15 3.77 11.81 21.88 19.33 3 4 2.25 3.86 11.70 21.61 19.45 3 4 2.35 3.95 11.58 21.33 19.57 3 4 2.45 4.03 11.47 21.06 19.69 3 4 2.55 4.11 11.36 20.80 19.82 3 4 2.65 4.19 11.25 20.54 19.94 3 4 2.75 4.27 11.14 20.28 20.06 3 4 2.85 4.34 11.03 20.03 20.19 3 4 2.95 4.41 10.93 19.78 20.31 3 5 2.95 4.87 9.55 16.88 24.02 3 5 3.05 4.95 9.45 16.66 24.20 3 5 3.15 5.03 9.36 16.45 24.37 3 5 3.25 5.10 9.27 16.24 24.55 3 5 3.35 5.17 9.18 16.03 24.72 3 5 3.45 5.23 9.09 15.83 24.90 3 5 3.55 5.29 9.00 15.63 25.08 3 5 3.65 5.35 8.92 15.43 25.25 3 5 3.75 5.41 8.83 15.24 25.43 3 5 3.85 5.46 8.75 15.05 25.60 3 5 3.95 5.52 8.66 14.86 25.78 3 6 3.95 5.51 8.67 14.89 25.79 3 6 3.96 5.51 8.67 14.88 25.79 3 6 3.97 5.51 8.67 14.87 25.79 3 6 3.98 5.51 8.66 14.86 25.79 3 7 3.98 5.53 8.61 14.74 26.01 3 7 4.08 5.52 8.57 14.64 26.03 3 7 4.18 5.51 8.53 14.55 26.04 3 7 4.28 5.50 8.49 14.46 26.06 3 7 4.38 5.49 8.45 14.36 26.07 3 7 4.48 5.49 8.41 14.27 26.09 3 7 4.58 5.48 8.38 14.18 26.10 3 7 4.68 5.48 8.34 14.09 26.11 3 7 4.78 5.48 8.30 14.00 26.13 3 7 4.88 5.47 8.26 13.91 26.14 3 7 4.98 5.47 8.22 13.82 26.16 3 7 5.08 5.47 8.19 13.73 26.17 3 7 5.18 5.47 8.15 13.64 26.19 3 7 5.28 5.47 8.11 i 3. 7 5.38 5.47 8.08 3 7 5.48 5.47 8.04 3 7 5.58 5.48 8.00 3 7 5.68 5.48 7.97 3 7 5.78 5.48 7.93 3 8 5.78 5.66 7.39 3 8 5.88 5.67 7.35 3 8 5.98 5.68 7.32 3 8 6.08 5.69 7.28 3 8 6.18 5.70 7.24 3 8 6.28 5.72 7.21 3 8 6.38 5.73 7.17 3 8 6.48 5.74 7.14 3 8 6.58 5.75 7.10 3 8 6.68 5.76 7.06 3 8 6.78 5.77 7.03 3 8 6.88 5.78 6.99 3 8 6.98 5.80 6.96 3 8 7.08 5.81 6.93 3 8 7.18 5.82 6.89 3 8 7.28 5.83 6.86 3 8 7.38 5.84 6.82 3 8 7.48 5.86 6.79 3 8 7.58 5.87 6.76 3 8 7.68 5.88 6.72 Seg # I Reach # I Seg Mi I D.O. I CBOD 13.55 26.20 13.46 26.22 13.38 26.23 13.29 26.25 13.20 26.26 13.12 26.28 12.01 28.92 11.93 28.96 11.84 29.00 11.76 29.04 11.68 29.08 11.60 29.13 11.51 29.17 11.43 29.21 11.35 29.25 11.27 29.29 11.19 29.34 1 1 . 12 29.38 11.04 29.42 10.96 29.46 10.88 29.50 10.81 29.55 10.73 29.59 10.66 29.63 10.58 29.67 10.51 29.71 NBOD I Flow SUMMER ALLOWED SOC QW= 2.4 MGD, SOC NH3=30 MG/L, MEETS 67B e Discharger Receiving Stream MODEL RESULTS : LENOIR-LOWER CR : LOWER CREEK The End D.O. is 6.01 mg/1. The End CBOD is 6.35 mg/1. The End NBOD is 9.78 mg/1. WLA WLA WLA DO Min CBOD NBOD D0 Waste Flow (mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd) Segment 1 3.87 1.47 2 Reach 1 Reach 2 Segment 2 6.17 0.00 1 Reach 1 Segment 3 3.63 0.45 1 Reach 1 Reach 2 Reach 3 Reach 4 Reach 5 Reach 6 Reach 7 Reach 8 60.00 0.00 45.00 0.00 0.00 0.00 0.00 0.00 45.00 0.00 0.00 135.00 0.00 21.15 0.00 0.00 0.00 0.00 0.00 90.00 0.00 0.00 5.00 2.40000 0.00 0.00000 0.00 0.02000 0.00 0.00000 0.00 0.00000 0.00 0.00000 0.00 0.00000 0.00 0.00000 0.00 0.00500 0.00 0.00000 0.00 0.00000 *** MODEL SUMMARY DATA *** Discharger : LENOIR-LOWER CR Receiving Stream : LOWER CREEK Summer 7Q10 : 9.3 Design Temperature: 25.0 Subbasin : 030831 Stream Class: C Winter 7Q10 : 17.7 ILENGTH1 SLOPE' VELOCITY 1 DEPTH' Kd 1 Kd 1 Ka I Ka 1 KN 1 KN 1 KNR 1 KNR 1 SOD I SOD mile 1 ft/mil fps I ft 'design) @20° 'design' @20° 'design) @20° 'design' @20° 'design) @20° 1 1 1 11 1 1 1 I I I 1 I I Segment 1 1 0.151 5.301 0.314 ' 1.61 1 0.29 10.23 1 2.41 1 2.161 0.44 1 0.30 1 0.44 1 0.00 i 0.00 1 0.00 Reach 1 1 1 1 1 1 1 1 1 1 1 I I I 1 1 1 1 1 1 1 I 1 I I I I Segment 1 1 0.121 5.301 0.331 11,14 1 0.29 ' 0.23 1 2.54 1 2.281 0.44 10.30 1 0.44 10.00 1 0.00 10.00 Reach 2 I 1 I 1 1 I 1 1 I 1 1 I I I I 1 1 1 1 1 1 1 1 I 1 I I Segment 2 1 0.201 40.001 0.100 10.35 10.44 1 0.35 1 8.03 I 1.201 0.13 10.50 10.13 10.00 10.00 10.00 Reach 1 1 1 I I I 1 1 1 1 1 I I I 1 I 11 1 1 I I 1 1 I I I Segment 3 1 0.451 5.301 0.338 1 1.16 10.29 10.23 1 2.60 I 2.331 0.44 1 0.30 1 0.44 10.00 1 0.00 10.00 Reach 1 1 1 I 1 1 1 1 1 I I I 1 I 1 1 11 1 1 1 I I 1 1 I I Segment 3 I 0.901 5.301 0.350 1 1.81 1 0.29 1 0.23 1 2,69 1 2.411 0.44 1 0.30 1 0.44 10,00 10.00 10.00 Reach 2 1 1 I 1 1 1 I 1 I I I I I 1 1 11 I I I I 1 I I I I Segment 3 1 0.601 5.301 0.360 1 1.85 1 0.29 1 0.23 1 2.11 1 2.481 0.44 i 0.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 3 1 1 I 1 1 1 I I 1 I 1 1 I 1 1 11 I I I 1 1 1 1 I I Segment 3 I 1.001 6.801 0.391 1 1.80 1 0.30 1 0.24 1 3.91 1 3.511 0.44 1 0.30 10.44 1 0.00 10.00 i 0.00 Reach 4 1 1 1 I I 1 1 1 1 I 1 1 I 1 1 I I I I I 1 Segment 3 I 1.001 6.801 0.431 11.94 1 0.30 1 0.24 1 4.31 1 3.811 0.44 1 0.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 5 1 I 1 I 1 1 1 1 1 1 I 1 I 1 1 1 1 1 1 1 1 1 1 1 I I Segment 3 1 0.031 6.801 0.448 1 1.95 1 0.30 1 0.24 1 2.99 1 2.681 0.44 1 0.30 10.44 1 0.00 1 0.00 1 0.00 Reach 6 1 1 1 1 1 1 1 1 1 1 1 1 I I I 1 1 1 1 1 1 1 1 1 1 I I Segment 3 1 1.801 6.801 0.449 1 1.96 1 0.30 1 0.24 1 2.99 1 2.691 0.44 1 0.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 1 1 1 I I I I Segment 3 1 1.901 6.801 0.466 1 2.04 1 0.30 1 0.24 1 3.11 1 2.191 0.44 1 0.30 1 0.44 1 0.00 1 0.00 1 0.00 Reach 8 I 1 1 1 1 1 1 1 1 1 1 1 I I Flow I CBOD I NBOD I D.O. I I cfs I m9/1 I mg/l I mg/l I Segment 1 Reach 1 Waste I 3.720 160.000 1135.000 1 5.000 H dwA+prcI Q_gnn I 9_nnn I 1 _nnn I 7_ IALn Tributary 1 0.000 * Runoff 1 0.210 2.000 1 1.000 2.000 1 1.000 7.440 7.440 Segment 1 Reach 2 Waste 1 0.000 Tributary I 1.630 * Runoff 1 0.670 0.000 2.000 2.000 0.000 1.000 1.000 Segment 2 Reach 1 Waste 1 0.031 1 45.000 1 21.150 Headwaters) 0.150 ( 2.000 1 1.000 Tributary 1 0.000 1 2.000 1 1.000 * Runoff 1 0.000 1 2.000 1 1.000 Segment 3 Reach 1 Waste 1 0.000 Headwaters) 0.000 Tributary 1 0.000 * Runoff 1 1.230 Segment 3 Reach 2 Waste 1 0.000 Tributary 1 0.580 * Runoff 1 1.230 0.000 2.000 2.000 2.000 0.000 2.000 2.000 0.000 1.000 1.000 1.000 0.000 1.000 1.000 0.000 7.440 7.440 0.000 7.440 7.440 7.440 0.000 7.440 7.440 7.440 0.000 7.440 7.440 Segment 3 Reach 3 Waste 1 0.000 1 0.000 1 0.000 1 0.000 Tributary 1 0.320 1 2.000 1 1.000 1 7.440 * Runoff 1 1.230 1 2.000 1 1.000 1 7.440 Segment 3 Reach 4 Waste 1 0.000 Tributary 1 0.000 * Runoff 1 1.230 Segment 3 Reach 5 Waste 1 0.000 Tributary 1 3.710 * Runoff 1 1.760 0.000 2.000 2.000 0.000 2.000 2.000 0.000 1.000 1.000 0.000 1.000 1.000 0.000 7.440 7.440 0.000 7.440 7.440 Segment 3 Reach 6 Waste 1 0.008 1 45.000 1 90.000 1 0.000 Tributary 1 0.000 1 2.000 1 1.000 1 7.440 * Runoff 1 0.147 1 2.000 1 1.000 1 7.440 Segment 3 Reach 7 Waste 1 0.000 1 0.000 1 0.000 1 0.000 Tributary 1 0.220 1 2.000 1 1.000 1 7.440 * Runoff 1 0.147 1 2.000 1 1.000 1 7.440 Segment 3 Reach 8 Waste 1 0.000 Tributary 1 2.640 * Runoff 1 0.420 0.000 1 0.000 1 0.000 2.000 1 1.000 1 7.440 2.000 1 1.000 1 7.440 Seg # I Reach # I Seg Mi I D.O. 1 CBOD 1 1 0.00 6.74 18.57 1 1 0.05 6.56 18.51 1 1 0.10 6.38 18.44 1 1 0.15 6.21 18.38 1 1 0.20 6.05 18.31 1 1 0.25 5.89 18.25 1 1 0.30 5.73 18.18 1 1 0.35 5.58 18.12 1 1 0.40 5.43 18.05 1 1 0.45 5.29 17.99 1 1 0.50 5.15 17.93 1 1 0.55 5.02 17.86 1 1 0.60 -4.89 17.80 1 1 0.65 4.76 17.74 1 1 0.70 4.64 17.68 1 1 0.75 4.52 17.62 1 2 0.75 4.84 15.90 1 2 0.78 4.79 15.85 1 2 0.81 4.74 15.81 1 2 0.84 4.69 15.76 1 2 0.87 4.64 15.72 1 2 0.90 4.59 15.68 1 2 0.93 4.55 15.63 1 2 0.96 4.50 15.59 1 2 0.99 4.45 15.55 1 2 1.02 4.41 15.50 1 2 1.05 4.37 15.46 1 2 1.08 4.33 15.42 1 2 1.11 4.28 15.38 1 2 1.14 4.25 15.33 1 2 1.17 4.21 15.29 1 2 1.20 4.17 15.25 1 2 1.23 \ 4.13 15.21 1 2 1.26 4.09 15.16 1 2 1.29 4.06 15.12 1 2 1.32 4.03 15.08 1 2 1.35 )3.99 15.04 1 2 1.38 13.96 15.00 1 2 1.41 3.93 14.96 1 2 1.44 3.90 14.92 1 2 1.47 D.87 14.88 2 1 0.00 6.17 9.36 2 1 0.01 6.22 9.34 2 1 0.02 6.28 9.31 2 1 0.03 6.33 9.29 2 1 0.04 6.38 9.26 2 1 0.05 6.42 9.24 2 1 0.06 6.47 9.21 2 1 0.07 6.51 9.19 2 1 0.08 6.55 9.16 2 1 0.09 6.59 9.14 2 1 0.10 6.63 9.12 2 1 0.11 6.66 9.09 2 1 0.12 6.70 9.07 2 1 0.13 6.73 9.04 2 1 0.14 6.76 9.02 2 1 0.15 6.79 8.99 2 1 0.16 6.82 8.97 2 1 0.17 6.85 8.94 2 1 0.18 6.87 8.92 2 1 0.19 6.90 8.90 2 1 n.2n E.92 8.87 SUMMER ALLOWED SOC QW= 2.4 MGD, SOC NH3=30 MG/L, MEETS 67B N B O D I Flow I 39.29 13.02 39.09 13.03 38.89 13.04 38.69 13.05 38.50 13.06 38.30 13.07 38.11 13.08 37.91 13.09 37.72 13.10 37.53 13.11 37.34 13.13 37.15 13.14 36.97 13.15 36.78 13.16 36.59 13.17 36.41 13.18 32.51 14.81 32.39 14.83 32.27 14.85 32.15 14.87 32.03 14.89 31.91 14.91 31.79 14.93 31.67 14.95 31.55 14.97 31.43 14.99 31.31 15.01 31.20 15.03 31.08 15.05 30.96 15.07 30.85 15.09 30.73 15.11 30.62 15.13 30.51 15.15 30.39 15.17 30.28 15.19 30.17 15.21 30.06 15.23 29.94 15.25 29.83 15.27 29.72 15.29 4.45 0.18 4.43 0.18 4.41 0.18 4.39 0.18 4.37 0.18 4.35 0.18 4.33 0.18 4.31 0.18 4.29 0.18 4.27 0.18 4.26 0.18 4.24 0.18 4.22 0.18 4.20 0.18 4.18 0.18 4.16 0.18 4.14 0.18 4.12 0.18 4.11 0.18 4.09 0.18 4.07 0.18 .3 1 0.00 3.90 14.81 29.42 15.47 3• 1 0.05 3.86 14.72 29.19 15.53 , 3 1 0.10 3.83 14.63 28.97 15.59 3 1 0.15 3.79 14.54 28.74 15.66 • 3 1 0.20 3.76 14.45 28.52 15.72 3 1 0.25 3.73 14.37 28.30 15.78 3 1 0.30 3.70 14.28 28.08 15.84 3 1 0.35 3.67 14.20 27.86 15.90 3 1 0.40 3.65 14.11 27.65 15.96 3 1 0.45 3.63 14.03 27.44 16.02 3 2 0.45 3.76 13.61 26.52 16.60 3 2 0.55 3.73 13.46 26.13 16.73 3 2 0.65 3.70 13.30 25.74 16.85 3 2 0.75 3.68 13.16 25.37 16.97 3 2 0.85 3.66 13.01 25.00 17.10 3 2 0.95 3.65 12.87 24.64 17.22 3 2 1.05 3.64 12.72 24.28 17.34 3 2 1.15 3.63 12.58 23.93 17.47 3 2 1.25 3.63 12.45 23.59 17.59 3 2 1.35 3.63 12.31 23.25 17.71 3 3 1.35 3.70 12.13 22.86 18.03 3 3 1.45 3.71 12.00 22.54 18.15 3 3 1.55 3.72 11.88 22.23 18.28 3 3 1.65 3.74 11.75 21.92 18.40 3 3 1.75 3.75 11.63 21.62 18.52 3 3 1.85 3.77 11.51 21.33 18.65 3 3 1.95 3.79 11.39 21.04 18.77 3 4 1.95 3.79 11.39 21.04 18.77 3 4 2.05 3.89 11.28 20.76 18.89 3 4 2.15 3.98 11.17 20.50 19.02 3 4 2.25 4.06 11.05 20.23 19.14 3 4 2.35 4.15 10.95 19.97 19.26 3 4 2.45 4.23 10.84 19.72 19.38 3 4 2.55 4.31 10.73 19.47 19.51 3 4 2.65 4.38 10.63 19.22 19.63 3 4 2.75 4.45 10.53 18.98 19.75 3 4 2.85 4.52 10.42 18.74 19.88 3 4 2.95 4.59 10.32 18.50 20.00 3 5 2.95 5.03 9.02 15.77 23.71 3 5 3.05 5.11 8.93 15.56 23.89 3 5 3.15 5.18 8.84 15.36 24.06 3 5 3.25 5.25 8.76 15.16 24.24 3 5 3.35 5.31 8.67 14.97 24.41 3 5 3.45 5.38 8.59 14.78 24.59 3 5 3.55 5.44 8.50 14.59 24.77 3 5 3.65 5.49 8.42 14.40 24.94 3 5 3.75 5.55 8.34 14.22 25.12 3 5 3.85 5.60 8.26 14.04 25.29 3 5 3.95 5.65 8.18 13.87 25.47 3 6 3.95 5.65 8.20 13.89 25.48 3 6 3.96 5.65 8.19 13.88 25.48 3 6 3.97 5.65 8.19 13.87 25.48 3 6 3.98 5.65 8.18 13.86 25.48 3 7 3.98 5.66 8.13 13.75 25.70 3 7 4.08 5.65 8.09 13.66 25.72 3 7 4.18 5.65 8.06 13.57 25.73 3 7 4.28 5.64 8.02 13.49 25.75 3 7 4.38 5.63 7.98 13.40 25.76 3 7 4.48 5.63 7.95 13.31 25.78 3 7 4.58 5.62 7.91 13.22 25.79 3 7 4.68 5.62 7.88 13.14 25.80 3 7 4.78 5.62 7.84 13.05 25.82 3 7 4.88 5.62 7.80 12.97 25.83 3 7 4.98 5.62 7.77 12.88 25.85 3 7 5.08 5.62 7.73 12.80 25.86 1 7 5.18 5.62 7.70 12.72 25.88 3 7 5.28 5.62 7.66 12.63 25.89 4 3 7 5.38 5.62 7.63 12.55 25.91 3 7 5.48 5.62 7.59 12.47 25.92 3 7 5.58 5.62 7.56 12.39 25.94 ° 3 7 5.68 5.63 7.52 12.31 25.95 3 7 5.78 5.63 7.49 12.23 25.97 3 8 5.78 5.80 6.98 11.19 28.61 3 8 5.88 5.81 6.95 11.11 28.65 3 8 5.98 5.82 6.91 11.03 28.69 3 8 6.08 5.83 6.88 10.96 28.73 3 8 6.18 5.84 6.84 10.88 28.77 3 8 6.28 5.85 6.81 10.80 28.82 3 8 6.38 5.86 6.78 10.72 28.86 3 8 6.48 5.87 6.74 10.65 28.90 3 8 6.58 5.88 6.71 10.57 28.94 3 8 6.68 5.90 6.68 10.50 28.98 3 8 6.78 5.91 6.64 10.42 29.03 3 8 6.88 5.92 6.61 10.35 29.07 3 8 6.98 5.93 6.58 10.28 29.11 3 8 7.08 5.94 6.54 10.20 29.15 3 8 7.18 5.95 6.51 10.13 29.19 3 8 7.28 5.96 6.48 10.06 29.24 3 8 7.38 5.98 6.45 9.99 29.28 3 8 7.48 5.99 6.41 9.92 29.32 3 8 7.58 6.00 6.38 9.85 29.36 3 8 7.68 6.01 6.35 9.78 29.40 I Beg # 1 Reach # 1 Seg Mi I D.O. 1 CBOD I NBOD 1 Flow I Temperature / D.O. Determination for Model Enter values for daily monitoring for instream temp. and D.O. Sort on temp. (D10) and delineate quartiles. Use the 75th percentile in temperature and average DO saturation. Determine the DO for 75th percentile temp. and average DO saturation. Input that value into second screen of model last three years [ July - October ] Lower Creek above Lenoir WWTP Date Temperature Dissolved Oxygen % Saturation Ju I-94 12 9.2 85.4% Aug-94 12 9.7 90.1 Sep-94 13 9.2 87.4% Oct-94 17 8.1 83.9% Jul-95 18 7.9 83.5% Aug-95 18 8.5 89.9% Sep-95 21 7.5 84.2% Oct-95 21 7.5 84.2% Jul-96 21 8.1 90.9% Aug-96 22 6.9 78.9% Sep-96 22 7.3 83.5% Oct-96 22 7.7 88.1% 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 0.0 0.0 #DIV/0! 22 -6:7- 7,.3 85.8% 75th percentile - % DO at _ degrees average % sauturation 1/6/97 M� ASSOCIATES ENGINEERING•PLANNING•FINANCL Gill PARSHALL FLUME, uLTRASONIC FLOW METER SFPTAGE RECIEMNG STATION midr `PLsr. amm ANT INFUIEN AD MIN ISTRATION BULDING 0 z oZ =o n m PUUP sTA110N• MET WElJ7 CNLORWNATCR 24- FORCE MNN ti\\\\\\\\\\\\\.\\\\,\\\\,\,\\\\\\\\\\\\\\\\\\\\\\\\\\,\\\4\,\\\\\-\.\ \\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\, \\\\ \\\ \\\ \\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\, \\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\ \\\\\ \\\\\\\\\\ \\\\\UDEs N\OLDING D S \\\\\\\ \\\\\ ' (LAKE CH`WERS) \\\\ \\� \\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\ '` \\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\ ----teI1Ir 1 sPurrER BOX • \\\\\Pfri 1 \\\\\ \\ CLARIFl :11 %At .G. \�\cir \:\\ \\\\\\\\ LOWER 10' WASTE SLUDGE \\\ \\\\\ \\\\ \\. '\\\\\\\\-\\\ '\\\\ `\\ \\ \\\\\\\\\\\\\\\\\\\ \\ \\ \\\\\A\ �\\��\\ s..\rN \\ " L\ \\\� \ \\ \\, \", \\\ \\ \\\ \\ \\\\ \\\\\\\\\\\\ \\\ \\\\\\\\\\\\\\\\\\\� \\ \\\ \\ \\\ \\\ \\\ \\ \. \\\\1\ \. \ \\\\, \\DIGESTED §LUDGE BASIN \\\.\\\ \\\\\\\\\\\\\\\\" •\\1 \\\\\\\\\\\\\\\\\\ \\\ \\\ \\\\\\\\\\\\\\\\\ \\N \\ \\\ \\\\\\\ \\ . _ • \\\\ \\\\\\\\\\\k\,,\; \ \\\\\\\\\ N\\�\\\\\\\\\\\\\\\\\ \\ \\\,\\��\\�\\\•\\ j• \ b\\\ \\ \�\,k \\ \\\�\\\\\\\�\\\\ \. \\AERATION BASIN`\ \\, \\\\\\\\ \\\\p`\\ \\\\ \\\\\\\\\\\\\\\ r-""1111.1SPUTIER BOX \\\\\ \\\\ �R�F1ER�\\ \\\\\\\ CREEK r 6' WASTE SLUDGE \\\ \ \\DIG STER\\ \SLUDGE PUM- 'U\\ ` D.A.F. CONTROL BUILDING BIOSOUDS CONDITIONING AND STORAGE AREA FIGURE 3 LOWER CREEK WASTEWATER TREATMENT FACILITY CITY OF ENOIR FACILITY INFORMATION DESIGN CAPACITY: 4.0 MGD AVERAGE DAILY FLOW: 22 MGD 3 L.- Mc ASSOCIATES ENGINEERING • PIANN INC • FDNANCS Gill PROPOSED PLATFORM AND SUBMERSIBLE WASTE SLUDGE PUMP PARSHALL FLUME. ULTRASONIC FLOW METER SEPTACE REOENINC STATION ....�, PLANT INFLUENT 0 ADMBUILDINISTRAINGTION PUMP STATION. MET MEU OiLORINA IUK BAR SCREiTi, CCMMINUTDi, GRIT 01A14BER- r PROPOSED UPGRADE TO 24" LINE 24" FCRCE MAIN PROPOSED CONVERSION TO DUAL TRAIN AERATION BASIN WITH SUBMERGED AIR DIFFUSERS \\\\\\ "\\ \\\\�\\\N\\\N\\\N\\\\\ \\\\\\\\\\\\\\N\\\\ \\\ \ \\\ \\\\\\ \\\ \\\ \\ \\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\�\\\\\\\\\ t\\\\\\\\�\\\\\\\\\\\\\\ \\ \\\ \\\ \\\\\\\\ \\\\\ \\\ \\\ \\\\\\ \. \ \\\\\\\\\\ \\\ \\\\\ \\\\\\\\\\\\\\\\\\\\\ \\\\\\ \\\. \\\ \\ \\ . \\\ \ESL U\ E H04\G \:\ N \\\ \\ \\\\\\\\\\\\c\\\\\\\ \\\\\\\PROPOSED 0\\\\\\ \\\-\\\\ S?L\\ R \\\\\ \\\\\\\\\\\\\\\\\\\\\ \\ \ \ PLATE RM do MIXER\\\\\ \\ \\\ i.\\ `.\\ . . \\\\ (TYP. 4);\ \\ \ \. \\\\\\\\ \\\\\\\\N\\\ \\\\\\\.`PROPOSD\\t\\\�\- \\\\\\\ \\\\\\\A.AERQ819kosENN �� \\\ \A.. 2 MIXERS\ .\\\ PROPOSED INFLUENT PUMP STATION UPGRADE (REPLACE PUMPS) - CLARIFIER EFFLUENT sCCOHLNOTAC' IT� ' ASIN'_[. r SPUTTER BOX 116, \\ C •II`IER \\ it= Ns\ SO2 CHAMBER LOWER 10" WASTE MOM SPUTTER BOX SLUDGE �. PROPOSED AERATION BASIN EFFLUENT LINE T •/ PROPOSED RETURN SLUDGE PUMP STATION UPGRADE (REPLACE PUMPS) CREEK ♦ 6. WASTE SLUDGE N. D.A.F. CONTROL BUILDING PROPOSED AERATION BLOWERS PROPOSED ANOXIC ZONE WITH 2 MIXERS (/` AND BIOSOLIDSSTORACONGEDAREITIOANING PROPOSED 400EMERGENCY GENERATOR FIGURE 4 LOWER CREEK WASTEWATER TREATMENT FACILITY CITY OF LENOIIR PROPOSED IMPROVEMENTS DESIGN CAPACITY: 6.0 MGD AVERAGE DAILY FLOW: 22 MGD 1 t+Vlt NEW LAB BLDG 1098------ 1090— SPLITTER7BOK — ----- ---------_= ---- -- _ F=a ��d _loei ---- ---------- ------ _ �Z -EXISTING BRIDGE? JLP -------- 0 - .1-1 !EXIST. BRIDGE EXIST AERATOR REMOVE ALL £X/ST. AERATORS B SALVAGE _ I I I II PARKING I ; I ! wt. {IF I 1PUMPSTAT/ON, I1 - :._L; & CHLOR/NATOR F_____,›- GRASS 1 tom--�` - -`` ' / lilt& --j---------_. ••••••-•-•/.. "q �,\•.•• /. il jl'iV(7 / \ i/YOGI ti I. titotlt nNIAr_1) ;y. I()1 _1 COST. BRIDGE*2 _ EXISt BRIDGE 2:/SLOPE r L-- " 1 }r... M1M.II .I I� BRIDGE I',, 1 :I uH 1 IM.p '1I�Y11�1 . '1.1 II i �• - • BRIDGE 2:/SLOPE DIGESTED SLUDGE' BASIN 1---1 r-1 7A£RATORS ; 4RAT/ON BASIN ' - 1 2:/SLOPE SCUM 0 0 BAFFLE B WEIR r� { F REMOVE EXIST. CI AI+IB II:Il 1 AB H I:IIN 1len Ill.IK; • 0 SLUDGE HOLDING. TANK CONVERT TOAEROB DIGESTER SAND DRYING I I BEDS ■ A SPFid.LT 1Q8o .tee ions r- PUMP E SERV FIGURE 6 TOPOGRAPHIC MAP i 81°45' I 36.05'—-{- WATAUGA Pisgah 8 J$ a Acc Edgemon 4 35°55'—I LOWER CREEK WWTP SERVICE AREA tach area outlined on this map consists of more than one kind of soil. The map is thus leant for general planning rather than a basis Dr decisions on the use of specific tracts. Rock Knob CE National COUNTY 81.35' newell" Lenoir:_ Cajah Mountain 1 4 e0 8 tj •� 1 ,gs r_ re l 5 °Cox Knob . 6 o�" cn Dudley Shoals WILKEs Buffalo Cove rQyo. 1 81' 25' I Granite Falls 0 COUNTY 1 2 151 I 6 8 LEGEND CECIL-PACOLET-RION: Gently sloping to steep, well drained soils that have a clayey or loamy subsoil; formed in residuum from igneous and metamorphic rock CECIL-PACOLET-APPLING: Gently sloping to steep, well drained soils that have a clayey subsoil; formed in residuum from igneous and metamorphic rock HIBRITEN-PACOLET: Moderately sloping to very steep, well drained soils that have a loamy or clayey subsoil; formed in residuum from metamorphic and igneous rock CHEWACLA-MASADA-CONGAREE: Nearly level to strongly sloping, somewhat poorly drained to well drained soils that have a loamy or clayey subsoil or loamy underlying material; formed in recent or old alluvium EVARD-HAYESVILLE-SALUDA: Moderately sloping to very steep, well drained soils that have a clayey or loamy subsoil; formed in residuum from metamorphic rock ASHE: Steep or very steep, somewhat excessively drained soils that have a loamy subsoil; formed in residuum from granite gneiss BURTON: Steep, well drained soils that have a loamy subsoil; formed in residuum from quartzite CHESTNUT-EDNEYVILLE: Moderately steep to very steep, well drained soils that have a loamy subsoil; formed in residuum from metamorphic. rock COMPILED 1987 UNITED STATES DEPARTMENT OF AGRICULTURE SOIL CONSERVATION SERVICE AND FOREST SERVICE NORTH CAROLINA DEPARTMENT OF NATURAL RESOURCES AND COMMUNITY DEVELC NORTH CAROLINA AGRICULTURAL RESEARCH SERVICE NORTH CAROLINA AGRICULTURAL EXTENSION SERVICE CALDWELL COUNTY BOARD OF COMMISSIONERS GENERAL SOIL MAP CALDWELL COUNTY, NORTH CAROLINA Scale 1:190,080 1 0 1 2 3 Miles I„ t l 1 1 3 6 Km 3974 "•,, \ .1 3976! •'; : - ,71 1?,/- • - ) • • ."--1.-Nr-/- CZ" • ' ))/ -I. • ; \ \ 39757N KJ • R,/-• / i , , . — •-‹.,::-_-ate,,_c__' '\ ( //' ) • -.1 - f".. , • •••• N --••\ \ --::.----". l• '-'',_ .• ••, 1.2 \ .,,,C......,..:____:_:-.--:,,,,e-c-.).„, Cs.si • '';' ; .' 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N - 1 i ' S-1 SOURCE: U.S. DEPT OF THE INTERIOR • '' ' -.- •--/' ---:'1 's-: :.-.' :' '•i DATE: 1994 , i • , ,,.r . --- SCALE: 1" = 2000' i P .. / ; - ' I I " . ., _. i 258 0 ". •