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Home My WebLink AboutNC0037001_speculative limits_19961120 (2)State of orth Carolina Department of Environment, Health and Natural Resources Division of Water Quality Jaynes B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director Mr. Bill Holcomb Rockingham County Schools 511 Harrington Highway Eden, North Carolina 27288 ,a4m4, Ar A 410 anal SHNR November 20, 1996 Subject: Speculative Limits: Monroeton School, NC0036994 Bethany School, NC0037001 Rockingham County Dear Mr. Holcomb, I am writing in response to the October 9, 1996 letter from Mr. W. Max Frazier, PE, concerning a proposed expansion and relocation for the Monroeton and Bethany Schools' waste water discharge. The proposal includes one site for the Monroeton School and two sites for the Bethany School. I will outline each proposal separately. The Monroeton School currently discharges to an unnamed tributary to Troublesome Creek which has low flow statistics that require an alternatives analysis for the current discharge. The proposed relocation for this discharge is to a swamp -like segment of the Haw River which is classified as C - NSW. This segment of the Haw River generally offers little assimilative capacity for oxygen -consuming wastes due to the low stream flows, low reaeration rates, and high sediment oxygen demand. To protect the dissolved oxygen stream standard of 5 mg/1 and allow for the allocation of the limited assimilative capacity in this waterbody segment, limits no less stringent than 15 mg/1 of BOD5 and 4 mg/1 NH3-N are recommended for new and expanding discharges to the Haw River and its tributaries upstream of SR 2711. In 1983, the need for watershed -wide nutrient management for the Jordan Reservior prompted the development of a Nutrient Sensitive Water (NSW) strategy which requires effluent total phosphorus limits of 2.0 mg/1 for all new or expanding discharges. The following outlines our current recommendations for the Monroeton School, NC0036994 expansion and relocation to the Haw River: Flow (mgd): BOD5 (mg/1): NH3-N (mg/1): Dissolved Oxygen (mg/1): Total Suspended Solids (mg/1): pH (SU): Fecal Colifoim (#/100mL): Total Residual Chlorine (g/l): Total Phosphorus (mg/1): Total Nitrogen (mg/1): Summer 0.005 15 4 5 30 6-9 200 28 2 monitor Winter 0.005 30 8 5 30 6-9 . 200 28 2 monitor 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 Rockingham County Schools Speculative Limits NC0036994 & NC0037001 Rockingham County The Bethany School currently discharges to an unnamed tributary to Huffines Mill Creek which has low flow statistics that require an alternatives analysis for the current discharge. Two proposed sites for this discharge to relocate were requested. The first was to Troublesome Creek which is classified as WS-III NSW CA. The proposed location, (at the bridge for SR 2351) has a positive flow during low flow periods, therefore a modeling analysis was performed and secondary treatment is predicted to protect the receiving waters dissolved oxygen standard of 5.0 mg/1. As with the Haw River site, a 2.0 mg/1 total phosphorus limit would be required. The following outlines our current recommendations for the Bethany School, NC0037001 expansion and relocation to Troublesome Creek: Flow (mgd): BOD5 (mg/1): NH3-N (mg/1): Dissolved Oxygen (mg/1): Total Suspended Solids (mg/1): pH (SU). Fecal Cohform (#/100mL): Total Residual Chlorine (14/1): Total Phosphorus (mg/1): Total Nitrogen (mg/1): Summer 0.010 30 monitor monitor 30 6-9 200 28 2 monitor Winter 0.010 30 monitor monitor 30 6-9 200 28 2 monitor The second site proposed for Bethany School was to Huffines Mill Creek which does not have sufficient drainage to meet the minimum stream flow criterion for discharge. A change in the proposed site to SR 2359, (downstream from the original request) has a drainage area large enough to sustain positive flow during predicted low flow periods. This proposed relocation has a positive flow during low flow periods, therefore a modeling analysis was performed and advanced secondary treatment is predicted to protect the receiving waters dissolved oxygen standard of 5.0 mg/l. Unhke the Haw River discharge, no nutrient limits would be required at this discharge location as it is in the Roanoke River Basin which is not showing signs of nutrient problems. The following outlines our current recommendations for the Bethany School, NC0037001 expansion and relocation to the Huffines Mill Creek: Flow (mgd). BOD5 (mg/1): NH3-N (mg/1): Dissolved Oxygen (mg/1): Total Suspended Solids (mg/1): pH (SU). Fecal Cohform (#/100mL): Total Residual Chlorine (µg/1): Total Phosphorus (mg/1) Total Nitrogen (mg/1): Summer 0.010 30 14 monitor 30 6-9 200 28 monitor monitor Winter 0.010 30 monitor monitor 30 6-9 200 28 monitor monitor Under current DWQ procedure, dechlorrnatron and chlorine limits are recommended for all new or expanding dischargers proposing the use of chlorine for disinfection. An acceptable level of residual chlorine in all of the proposed discharges is 28 µg/1 for protection against acute toxicity. The process of chlorination / dechlorination or ultra violet radiation may allow the facility to comply with the total residual chlorine limit. Rockingham County Schools Speculative Limits NC0036994 & NC0037001 Rockingham County Please be advised that response to a speculative request does not guarantee that the Division will issue an NPDES permit to discharge treated wastewater. 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. Nondischarge alternatives, such as spray irrigation or connection to a regional treatment and disposal system, are considered to be environmentally preferable to a discharge. Therefore, prior to submittal of an NPDES application, a detailed alternatives analysis must be prepared to assure that the environmentally sound alternative was selected from the reasonable cost effective options. In order to receive final permit limits, a formal application indicating the proposed WWTP design capacity and a justification for the facility will have to be submitted to the Division's Permits and Engineering Unit. The final NPDES effluent limitations will be determined after a formal permit application has been submitted to the Division of Water Quality. If there are any additional questions concerning this matter, please feel free to contact Farrell Keough at (919) 733-5083, extension 510 or me at extension 519. Sincerely, Donald L Safrit, P E Assistant Chief for Technical Support Water Quality Section cc: Dave Goodrich, Permits and Engineering Steve Mauney Winston-Salem Regional Office Michelle Suverkrubbe, Planning Bobby Blowe, Construction Grants W. Max Frazier, PE, Tritech Civil Environmental, PC Central Files 105 TRITECH • Tritech Civil WATER & WASTEWATER ENGINEERS (At Post Office Box 4127 • Asheboro, North Carolina 27204 • (910) 672-5253 202 Commerce Place • Randleman, North Carolina 27317 • (910) 498-1060 • Fax: (910) 498-1070� ' October 9, 1996 NC Department of Environment, Health and Natural Resources Division of Environmental Management PO Box 29535 Raleigh, NC 27626-0535 Attention: Mr. Don Safrit Dear Mr. Safrit: Attached are maps that show discharge locations that are being considered for two wastewater dischargers for whom Tritech Civil Environmental is providing engineering services. These dischargers are described as follows: Discharger Design Flow 1. Rockingham County Schools Bethany School 10,000 2. Rockingham County Schools Bethany School 10,000 gpd 3. Rockingham County Schools Monroeton School 5,000 Discharge Point Map Coordinates Troublesome Creek ✓ 921,600N 1,749,350E Huffine Mill Creek ✓ 93 7,900N 1,746,900E Haw River 918,350N 1,783,850E Please note that the proposed discharge point for Bethany School on Troublesome Creek is about 8 miles upstream from the headwaters of the water supply reservoir for the City of Reidsville. We request preliminary permit limits for these discharges at the points indicated. Thank you for your assistance. Very truly yours, Tritech Civil Environmental, PC W. Max Frazier, PE lah/WMF cc: Bill Holcomb, Rockingham County Schools Steve Mauney, NCDEM - Winston-Salem Regional Office • P:96015-201sa.frit. doc Oct-29-96 03-31 Tritech Civil Envy, PC 910 498 1070 pool Date 7 Number of pages including cover sheet 41 To: Ceti lr72 507 _ K rfris®s-7 Phone Fax Phone CC' f/ et' 733 77/7 For your review Wu--5j.tesere d7! Ch. From: Tritech Civil Environmental, PC PO Box 4127 Asheboro, NC 27204 �Y�X FVazics- Phone (910)498-1060 Fax Phone (910)498-1070 Reply ASAP ❑ Please comment • ti 1 v Oct -29-96\` 03:31 • • • ♦ • ••-/� Cc r • • 04 • • • • r" • • % 1'1 / }rise? r i', Tritech Civil Env. • • .11 • •r- (2355 • or am • N. _ 910 498 1070 93"• • 1 • - • • v r. i _l Sec--r . ,• -� • • A. 1 • P.03 { -0^- 6 „T\ 1 1 / i 40- BETHANY, N. C. 1971 N. Z , ela • • •. • • • 1 .••• • • • \ • i .._ •• Cem..=:=___- milgm • • • • • • • 79) ::1)-164°."4.11 • • 23' • tq—. • '\ • 1, iu 0 a tl ' • • Y "1 .. r • '• 'Li i • --s3°° . I : •—c. _ .4• f• aloe �I►- �I• JII. 46. ..•.- llr IL inqus;.Pe-/ / Civil Env., PC r.° /, �..... • . � / • ,••• V.•••• • W••• • • • I. G• , �! • ... $$ ,. I::ii:ii,: • SS �....! ..il lift 44444 :::11i1Elil:,!ll444444:: ::::r { Tritech 'ce m • 910 498 1070 \ - ma, —/ ' -•> • 1:•:,.,••. �. ....I: • ::::l::St tt xli^,�:: .. —•••,--, t II 1! .3 1r, . �• -. 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II, ' \ Notes for File Monroeton School NC0036994 Qw: 0.005 mgd • Current discharge, (Qw: 0.00425 mgd) is to zero 7Q10 / 30Q2 u.t. to Troublesome Creek. Facility is scheduled to cease current discharge by 9/97. 00 c/3 pccea-1,‘ AO16 R s wif 5 /7.- Ifs Mc ti,;, Haw River 03-06-01 P 3 9 c is c-± re rvc-,0 ,,1 The proposed site for relocation is to a swamp -like segment of the Haw River classified as C - NSW. The Basin Plan recommends an Alternative Analysis and/or 15 BOD5 / 4 NH3-N for this area of the Haw River, (section 6.3.5). A 2 0 mg/1 Total Phosphorus limit is also required for all new or expanding discharges to this area, (section 6 4 2) No model will be run for proposed site for two reasons the high s7Q10 will result in less stringent limits than those outlined by the Basm Plan and the proposed discharge is to a swamp system that will not be well portrayed by the Level B model. Bethany School NC0037001 Qw: 0.010 mgd • Cuiient discharge, (Qw: 0.00375 mgd) is to u.t. to Huffines Mill Creek [C waters] which has a zero 7Q10 / 30Q2. Facility is scheuled to meet Advanced Tertiary Limits by 1994. atu to LA — t 5 CO� L �� 5 � ( S/z, �Aw (tic. 13 • Two proposed sites for relocation were requested; Huffines Mill Creek and Troublesome Cre„� Huffines Mill Creek 03-02-03 The proposed site had a drainage area that was less than the minimum required for an HA 9 discharge. If the discharge was located further downstream at SR 2359 the flow statistics would be positve. A model was run at this site to prevent the need for the consultant to re -request a speculative on this waterbody. The flow statistics required a 14 mg/1 NH3-N, and the model indicated that Advanced Secondary Limits would protect. The Huffines Mill Creek site is located in the Roanoke River Basin and would not have the nutrient or conventional parameters limits that the Cape Fear discharges would. Troublesome Creek 03-06-01 The Toublesome Creek, [WS - III NSW CA] proposed site did have a positive flow and the model was run. The model indicated Secondary Limits would protect. The Troublesome Creek proposed site would have the same nutrient removal requirments that the Haw River site above would have, (i.e. 2 0 mg/1 Total Phosphorus). Facility: NPDES#: Receiving Stream. Comment(s): Low Flow Record Station Number: Hydrologic Area Number: Drainage Area Low Flow Record Station: Mean Annual Runoff: Qave Low Flow Record Station: s7Q1 0 Low Flow Record Station: w7Q10 Low Flow Record Station: 30Q2 Low Flow Record Station: Drainage Area New Site: MAR New Site: Qave per Report Equation: s7Q1 0 per Report Equation: w7Q10 per Report Equation: 30Q2 per Report Equation: Drainage Area Ratio: [ new DA/Da at gage] Weighted Ratio: Over -ride Inappropriate Site. (y ): Monroeton School NC0036994 Haw River Open Report site upstream at US 220 02.0932.6000 HA9 20 60 miles squared 1.00 miles squared 20.60 cfs 0.90 cfs 4.00 cfs 4.40 cfs must be < 400 sq. miles 62.10 sq. miles 1.0 cfs/miles squared 62.10 cfs 1.75 cfs 7.05 cfs 9.73 cfs Continue 3.01 . 1 Continue 0.33 : 1 Drainage Area New Site: MAR New Site: Weighted Qave per Report Equation: Weighted s7Q10 per Report Equation: Weighted w7Q10 per Report Equation: Weighted 30Q2 per Report Equation: 62.10 miles squared 1.0 cfs/miles squared 62.10 cfs 2.07 cfs 8.69 cfs 10.89 cfs Bethany School Segment / Reach S1 R1 S1 R2 S1 R3 S1 R4 S1 R5 Length 1.8 1.0 0.3 1.5 - Qw 0090 - - - - CBOD 45 - _ - _ NBOD 90 - - - _ DO - _ - - _ :.::.••:::.:.::: :.............::...:..........:.>:.;:•::•:•::.::::::<.::•:;::<•:<....::<::::... •...::. • • •..:.....•...... :>::::::: s 7Q10 0 0 0 0 - w7Q10 0013 0.013 0013 0013 - Qave 0.96 0.96 0.96 0.96 - Iiiiiii a.::::::::......:••.....•:.. •::.......•.�.....•...........•....:.::::•:::.;>; •:::•;>•:•;<:::i::> :::::•: ;>:::;:; :: s 7Q10 - - 0.39 0.33 - w 7Q 10 - - 0.74 0.58 - Qave - - 3.58 2.63 - Slope 7.7 10.5 10.5 5.7 02.0933.2525 HA9 MAR 1.1 Bethany School DA: 13.6 NC0037001 s7Q10: 0.78 Qw: 0.010 mgd w7Q10: 2.12 Qave: 14.96 30Q2: 2.76 Troublesome Creek Runoff s7Q10: (1.09 - 0.33 - 0.39 - 0.78 ) / 4.6 = (-0.089 cfs) zero will be used w7Q10: (3.5-0.58-0.74-2.12)/4.6 = 0.013cfs Qave: (25.6 - 2.63 3.58 - 14.96) / 4.6 = 0.96 cfs 02.0933.2552 DA: 3.58 s7Q10: 0.39 w7Q10: 0.74 Qave: 3.58 30Q2: 0.91 HA9 MAR 1.1 02.0933.2800 HA9 MAR 1.1 DA: 25.6 s7Q10: 1.09 w7Q10: 3.50 Qave: 25.6 30Q2: 4.66 S1 R1 SR 2351 S1 R2 S1 R3 S1 R4 02.0933.2750 HA9 MAR 1.1 DA: 2.63 s7Q10: 0.33 w7Q10: 0.58 Qave: 2.63 SR 1001 Discharger Receiving Stream The End D.O. is The End CBOD is The End NBOD is Segment 1 Reach 1 Reach 2 Reach 3 MODEL RESULTS : BETHANY SCHOOL : HUFFINES MILL CREEK 7.95 mg/l. 1.99 mg/l. 1.31 mg/l. DO Min (mg/1) Milepoint Reach # 6.87 0.00 1 SUMMER PROPOSED SITE CHANGED DWNSTREM 30 MG/L BOD 14 MG/L NH3-N WLA CBOD (mg/1) 45.00 0.00 0.00 WLA NBOD (mg/1) 63.00 0.00 0.00 WLA DO Waste Flo (mg/1) (mgd) 0.00 0.00 0.00 0.01000 0.00000 0.00000 I Seg # 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Seg # 1 Reach 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 Reach Seg Mi I 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.60 1.80 2 00 2.20 2.40 2.60 2.60 2.70 2.80 2.90 # I Seg Mi D.O. 6.87 7.60 7.76 7.81 7.84 7.86 7.88 7.90 7.91 7.91 8.02 8.03 8.03 8.04 8.04 8.04 7.99 7.96 7.95 D.O. 1 I CBOD 4.51 4.22 3.96 3.71 3.49 3.28 3.09 2 91 2 75 2.75 2.61 2 48 2 36 2 25 2.14 2.14 2.09 2.04 1.99 CBOD SUMMER PROPOSED SITE CHANGED DWNSTREM 30 MG/L BOD 14 MG/L NH3 N NBOD I Flow I 4.62 0.27 4.18 0 27 3.79 0.28 3.44 0.29 3.12 0.30 2 84 0.31 2.59 0.31 2 36 0.32 2.15 0.33 2.15 0.33 2 00 0.34 1.85 0.35 1.72 0.35 1.60 0.36 1.49 0.37 1.49 0.37 1.43 0.37 1.37 0.38 1.31 0.38 I NBOD I Flow I *** MODEL SUMMARY DATA *** Discharger . Receiving Stream . Summer 7Q10 .• Design Temperature: BETHANY SCHOOL HUFFINES MILL CREEK 0 25 26.0 Subbasin : 0302 Stream Class: C Winter 7Q10 : 0.4 ILENGTHI SLOPE' VELOCITY 1 DEPTH' Kd I Kd I Ka I Ka I KN I KN I KNR 1 KNR I SOD I SOD mile I ft/mil fps I ft Idesignl @20 'design) @20 Idesignl @20 'design) @20 'design' @20 Segment 1 Reach 1 1 1 1 1.601 64.901 0.126 0.40 0.52 0.39 116.82 14.761 0.79 0.50 0.79 0.00 0.00 0.00 1 I 1 1 Segment 1 Reach 2 I I i 1.001116.701 0.153 1 0.39 1 0.57 1 0.44 136.66 1 32.181 0.79 1 0.50 1 0.79 1 0.00 1 0.00 1 0.00 I I 1 1 I 1 I 1 1 1 Segment 1 Reach 3 I 1 1 1 I 1 I 1 I 1 1 0.301 50.001 0.121 1 0.45 0.47 1 0.36 112.45 1 10.931 0.79 0.50 1 0.79 0.00 1 0.00 0.00 I I 1 1 I 1 1 1 1 I 1 Flow I cfs Segment 1 Reach 1 Waste I 0.015 I Headwaters) 0.250 Tributary ( 0.000 * Runoff 1 0.040 Segment 1 Waste Tributary * Runoff each 2 0.000 0.000 0.040 Segment 1 Reach 3 Waste Tributary * Runoff CBOD I NBOD I D.O. I mg/1 1 mg/1 I mg/1 I 45.000 1 63.000 I 2.000 1 1.000 2.000 1 1.000 2.000 1 1.000 0.000 7.300 7.300 7.300 0.000 1 0.000 I 0.000 2.000 1 1.000 7.300 2.000 1 1.000 7.300 0.000 1 0.000 0.000 I 2.000 0.040 1 2.000 * Runoff flow is in cfs/mile 0.000 I 0.000 1.000 I 7.300 1.000 I 7.300 Bethany School Segment / Reach S1 R1 S1 R2 S1 R3 S1 R4 S1 R5 Length 1.6 1.0 0.3 - _ Qw 9 • t,.t4_ • _ _ - - CBOD 10 _ - or _ NBOD 63 _ _ - _ DO - - _ - :::::::::• .........:...............::::::.............................•:•:. • .......... .....................:•:;••:::.:;:......... s 7Q10 0.04 0.04 0.04 - - w 7Q 10 0.09 0.09 0.09 - - Qave 0.56 0.56 0.56 - - : .:: r`:::::: »: » « <: < : ::libsita. :<:>::: ?<:: :::>::>::::"; s 7Q10 - _ _ _ _ w7Q10 - _ - _ _ Qave - _ - _ - Slope 64.9 116.7 50 Bethany School NC0037001 Qw: 0.010 mgd Huffines Mill Creek HA9 MAR 1.1 DA 1.63 s7Q10: 0.25 w7Q10: 0.40 Qave: 1.79 30Q2: 0.47 Runoff s7Q10: ( 0.36 - 0.25 ) / 2.95 = 0.04 w7Q10: (0.66 - 0.40 ) / 2.95 = 0.09 Qave: (3.43 - 1.79 ) / 2.95 = 0.56 02.0709.1625 HA9 MAR 1.1 DA: 3.12 s7Q10: 0.36 w7Q10: 0.66 Qave: 3.43 30Q2: 0.81 DA 0.7 originally proposed site Unuseable Drainage Area considered zero 7Q10 / 30Q2 SR 235 S1 R1 S1 R2 S1 R3 Jacobs Creek MODEL RESULTS Discharger : BETHANY SCHOOL Receiving Stream : TROUBLESOME CREEK The End D.O. is The End CBOD is The End NBOD is Segment 1 Reach 1 Reach 2 Reach 3 Reach 4 7.43 mg/l. 1.24 mg/l. 0.55 mg/l. DO Min (mg/1) Milepoint Reach # 6.80 1.00 1 SUMMER SECONDARY LIMITS W/ 2.0 MG/L TOTAL PHOSPHORUS WLA CBOD (mg/1) 45.00 0.00 0.00 0.00 WLA NBOD (mg/1) 90.00 0.00 0.00 0.00 WLA DO Waste Flo (mg/1) (mgd) 0.00 0.00 0.00 0.00 0.01000 0.00000 0.00000 0.00000 Seg # 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Seg # 1 1 SUMMER SECONDARY LIMITS W/ 2 0 MG/L TOTAL PHOSPHORUS Reach # 1 Seg Mi 1 D.O. 1 CBOD 1 NBOD 1 Flow 1 1 0.00 7.16 2.84 2.73 0.80 1 0.20 7.01 2 70 2.52 0.80 1 0.40 6.91 2.58 2.33 0.80 1 0.60 6.84 2.45 2.14 0.80 1 0.80 6.81 2 34 1.98 0.80 1 1.00 6.80 2.23 1.82 0.80 1 1 20 6.80 2.12 1.68 0.80 1 1.40 6.82 2 02 1.55 0.80 1 1.60 6.85 1.93 1.43 0.80 1 1.80 6.89 1.83 1.32 0.80 2 1.80 6.89 1.83 1.32 0.80 2 2 00 7.01 1.75 1.22 0.80 2 2.20 7.12 1.67 1.13 0.80 2 2 40 7.21 1.59 1.05 0.80 2 2 60 7.28 1.52 0.97 0.80 2 2.80 7.35 1.45 0.90 0.80 3 2.80 7.34 1.63 0.93 1.19 3 2.90 7.38 1.60 0.91 1.19 3 3.00 7.41 1.57 0.88 1.19 3 3.10 7.45 1.54 0.85 1.19 4 3.10 7.41 1.64 0.88 1.52 4 3.60 7.39 1.49 0.75 1.52 4 4.10 7.40 1.36 0.64 1.52 4 4.60 7.43 1.24 0.55 1.52 Reach # 1 Seg Mi 1 D.O. 1 CBOD 1 NBOD 1 Flow 1 *** MODEL SUMMARY DATA *** Discharger .• Receiving Stream . Summer 7Q10 .• Design Temperature: BETHANY SCHOOL TROUBLESOME CREEK 0.78 26.0 Subbasin : 0306 Stream Class: WS I Winter 7Q10 : 2.12 !LENGTH' SLOPEI VELOCITY 1 DEPTH' Kd I Kd I Ka 1 Ka I KN I KN I KNR I KNR I SOD 1 SOD ► mile I ft/mil fps 1 ft (design! @20 'design I @20 !design! @20 !design! @20 'design l @20 I I I Segment 1 1 1.801 7.701 0.072 ► 0.86 1 0.29 1 0.22 1 1.13 1 1,001 0.48 ► 0.30 1 0.48 1 0.00 1 0.00 1 0.00 Reach 1 1 I I 1 1 1 1 1 ► ► i i I I I Segment 1 1 1.001 10.501 0.076 1 0.83 1 0.29 1 0.22 1 1.64 1 1.441 0.48 1 0.30 1 0.48 1 0.00 1 0.00 1 0.00 Reach 2 I I I Segment 1 Reach 3 I I I 0.301 10.501 0.095 ( 0.91 1 0.30 1 0.22 1 2.05 1 1.801•0.48 1 0.30 1 0.48 1 0.00 1 0.00 1 0.00 I I 1 1 1 I I ► i 1 Segment 1 Reach 4 I I 1.501 5.701 0.091 1 1.05 0.28 0.21 1 1.07 1 0.931 0.48 1 0.30 10.48 1 0.00 1 0.00 1 0.00 I I I I 1 I I I 1 I 1 Flow cfs Segment 1 Reach 1 Waste Headwaters Tributary * Runoff Segment 1 Waste Tributary * Runoff 0.015 0.780 0.000 0.000 CBOD mg/1 45.000 2.000 2.000 2.000 NBOD mg/1 90.000 1.000 1.000 1.000 D.O. I mg/1 I 0.000 7.300 7.300 7.300 each 2 0.000 1 0.000 1 0.000 1 0.000 0.000 1 2.000 1 1.000 1 7.300 0.000 1 2.000 1 1.000 1 7.300 Segment 1 Reach 3 Waste 1 0.000 Tributary 1 0.390 * Runoff 1 0.000 Segment 1 Reach 4 Waste I 0.000 Tributary I 0.330 * Runoff I 0.000 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 7.300 7.300 0.000 7.300 7.300