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HomeMy WebLinkAboutNC0020940_Speculative Limits_19980720NPDES DOCIMENT SCANNING COVER SHEET NC0020940 Murphy WWTP NPDES Permit: Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Report Instream Assessment (67b) Speculative Limits' Environmental Assessment (EA) Document Date: July 20, 1998 This document is printed on reuse paper - ignore a ii y content on the reYerge side State of North Carolina Department of Environment and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Wayne McDevitt, Secretary A. Preston Howard, Jr., P.E., Director July 20, 1998 The Honorable William N. Hughes, Mayor Town of Murphy P.O. Box 130 Murphy, North Carolina 28906-0130 A7rA NCDENR Subject: Speculative Limits for Murphy WWTP NPDES Permit No. NC0020940 Cherokee County Dear Mayor Hughes: This letter is in response to your request for speculative effluent limits for the proposed expansion of Murphy's wastewater treatment plant from 0.925 MGD to 1.4 MGD. We have reviewed the request and provide the following response. The speculative limits presented here are based on our understanding of the proposal and of present environmental conditions. The Division of Water Quality (DWQ) cannot guarantee that it will issue the City an NPDES permit to discharge treated wastewater into waters of the State. Nor can we guarantee that the effluent limitations and other requirements included in any permit will be exactly as presented here. Final decisions on these matters will be made only after the Division receives and evaluates a formal permit application for the City's proposed discharge. Environmental Assessments of New Projects According to Division protocol, since this proposal involves an expansion, the formal application should provide an analysis of potential alternatives, including a thorough evaluation of non -discharge alternatives. Nondischarge alternatives or alternatives to expansion, such as spray irrigation, water conservation, or inflow and infiltration reduction, are considered to be environmentally preferable to a surface water discharge. The Division has attached a Guidance Document for performing an Engineering Alternatives Analysis to support the decision of how to manage the wastewater expansion. In accordance with the North Carolina General Statutes, the preferred alternative must be the practicable waste treatment and disposal alternative with the least adverse impact on the environment. P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone (919) 733-5083 FAX (919) 733-0719 An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper Page 2 Speculative Effluent Limits Based on the available information, tentative limits for the Murphy WWTP at the expanded flow of 1.4 MGD are as follows: Effluent Limits Summer Winter Flow (MGD) 1.4 1.4 BOD5 (mg/L) 30 30 NH3-N (mg/L) monitor monitor TSS (mg/L) 30 30 Dissolved Oxygen (mg/L) see below see below Fecal Coliform (#/100 mL) 200 200 pH (S.U.) 6.0 - 9.0 6.0 - 9.0 Total Residual Chlorine (ug/L) 28.0 28.0 Total Phosphorus (mg/L) monitor monitor Total Nitrogen (mg/L) monitor monitor Nickel (mg/L) monitor monitor Chronic Toxicity Pass/Fail P/F @ 1.7% with Ceriodaphnia BOD5. The Hiwassee River, in the area of the Murphy WWTP, is a designated Class C water and accordingly is required to have secondary treatment of municipal wastewater. The BOD5 concentration limits are standard for this level of treatment. NHS-N, Total Nitrogen and Total Phosphorus. The Hiwassee River in the area has sufficient assimilative capacity and critical condition (7Q10) flow to simply require that nutrients be monitored. This monitoring shall provide nutrient data for the future management of Hiwassee Lake. TSS. The limits for total suspended solids are standard for secondary treatment of municipal wastewater. D.O. The dissolved oxygen in the receiving waterbody, the Hiwassee River, must not fall below a hourly level of 4.0 mg/L and a average daily level of 5.0 mg/L Fecal Coliform, pH. The limits for fecal coliform and pH are derived to protect water quality in the receiving stream. They are also the same as in the existing permit. Total Residual Chlorine. DWQ is requiring chlorine limits for all new or expanding dischargers proposing the use of chlorine for disinfection. The process of chlorination/dechlorination or an alternate for of disinfection, such as ultraviolet radiation, should allow the facility to comply with this requirement. The limit is a daily maximum value. Toxicity. The chronic toxicity test using the water flea, Ceriodaphnia dubia, will remain a condition of the NPDES permit. The in -stream waste concentration (IWC) at which there may be no observable inhibition of reproduction or significant mortality is 1.7%. Page 3 Monitoring requirements. Any future permit will include monitoring requirements for the limited parameters. The permit will also require monitoring for parameters without specified effluent limitations, such as heavy metals and cyanide, and monitoring both of the effluent and the receiving stream, as does the current permit. Instream monitoring requirements will be modified to reflect applicable monitoring agreements with the Division. I trust this response offers sufficient guidance for the Town's proposed treatment plant expansion. If you have any additional questions about these limits, feel free to contact Chris Roessler at (919) 733-5083, ext. 506. Sincerely, d9ht.eit-- David A. Goodrich Supervisor, NPDES Unit Water Quality Section DAG/ECR cc: Michael Apke, McGill Associates Forrest Westall, Asheville Regional Office Bobby Blowe, Construction Grants and Loans Section Chris Roessler, Planning Branch Mary Kiesau, Local Government Assistance Unit Central Files NPDES Unit Files SPECULATIVE DISCHARGE LIMITS - TOWN OF MURPHY WWTP Permit No. NC0020940 The following table presents speculative limits and associated monitoring requirements for the Murphy WWTP, in response to the Town's request of July 2, 1998. These do not guarantee that the Division will issue an NPDES permit nor that the effluent limitations and other requirements included in any permit will be exactly as presented here. Any future permit will likely include additional monitoring requirements similar to the current permit; including instream monitoring, which will be modified to reflect applicable monitoring agreements with the Division. `� ICIITS::;:>�:� ;;::>::>::::::<::�:�::;:::::� ��: r :��R ..E �' D�R�1'�� ............:................:.:.:.. ........... . . �q} {{{tiff::.}v.�::::.�:.�::::.•:r:::::::::::::: m:::::::::::::::::::::: •.�.:[•Y:•:r{{{:.�::::::r:::.:'r:•'�:�:�'.':::::;?r:{}r}::ti�•::.;{•{{:.?:•};r,{•:::::::::::::::::: r::::: ...........r::::::. .tiff:: {:�{{ .. {+,i{{{{. T1�F.*!\M�............ ..�•} is ?i • .... •...���i�:vi{: • ......................................... • yr'ry:ti:iii�}5►�"-..'.':'}•..•••• .............. ... ......... - :••••.•�Sr. .................. .................. ........................................... Flow (MGD) 1.4 Continuous Recording E or I BOD52 30.0 mgll 45.0 mg/I Weekly Composite E, I Total Suspended Solids2 30.0 mg/I 45.0 mg/I Weekly Composite E, I NH3 as N 2/month Composite E Fecal Coliform (geometric mean)' 200/100 ml 400/100 ml Weekly Grab E pH3 Weekly Grab E Total Residual Chlorine4 28 pgll 2/week _ Grab E Temperature °C Weekly Grab E Total Nitrogen Quarterly Composite E Total Phosphorus Quarterly Composite E Lead 2/Month Composite E Cadmium 2/Month Composite E Chromium 2/Month Composite E Nickel 2/Month Composite E Copper Weekly Composite E Silver Weekly Composite E Zinc 2/Month Composite E Cyanide 2/Month Composite E Chronic Toxicity Quarterly Composite E Notes: t Sample Locations: E - Effluent, I — Influent 2 The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85% removal). 3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 4 Monitoring requirement applies only if chlorine is added for disinfection. s Chronic Toxicity (Ceriodaphnia) P/F at 1.7%; March, June, September, December; There shall be no discharge of floating solids or visible foam in other than trace amounts. McGill A S S O C I A TES July 2, 1998 Mr. David Goodrich North Carolina Department of Environment, Health and Natural Resources Division of Water Quality Post Office Box 29535 Raleigh, North Carolina 27626-0535 RE: Town of Murphy WWTP NPDES # NC0020940 Dear Mr. Goodrich: The Town of Murphy currently has a NPDES permit to discharge 925,000 gpd to the Hiwassee River. On behalf of the Town of Murphy, we respectfully request speculative NPDES permit limits for the Town to increase their discharge to 1.4 mgd. We appreciate your assistance with this very important issue. If you have any questions, please do not hesitate to call either Mike Waresak or myself. Sincerely, McGILL ASSOCIATES, P.A. Y-'det , ,t/ MICHAEL S. APKE, E.I.T. MSA:msa cc: Anna Payne bridges/97196.01/dg02jul8.doc Engineering • Planning • Finance McGill Associates, P.A. • P.O. Box 2259, Asheville, NC 28802 • 55 Broad Street, Asheville, NC 28801 704-252-0575 • FAX 704-252-2518 1.4 • .f;`•s"i-_{� lit -_-"-c +" NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY April 21, 1998 The Honorable William N. Hughes, Mayor Town of Murphy P.O. Box 130 Murphy, North Carolina 28906-0130 Subject: Speculative Limits for Murphy WWTP NPDES Permit No. NC0020940 Cherokee County Dear Mayor Hughes: This letter responds to the request of Mr. Michael Waresak of McGill Associates for speculative effluent limits for the Town of Murphy WWTP's proposed expansions of 1.5 MGD and 2.0 MGD. The staff of the NPDES Unit of the Point Source Branch has reviewed this request. 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. Attached is a guidance document that will assist you or your consultant in preparing an engineering alternatives analysis. The Town of Murphy discharges into the Hiwassee River, which has a stream classification of WS-IV CA. These waters are protected as water supplies and are generally in moderately to highly developed watersheds. The letters "CA" are for "critical area". The definition of critical area according to North Carolina Administrative Code Section: 15A NCAC 2B .0202 (18), is the area adjacent to a water supply intake or reservoir where risk associated with pollution is greater than from the remaining portions of the watershed. P.O. Box 29535, RALEIGH, NORTH CAROLINA 27626-0535 PHONE 91 9-733-5083 FAX 919-733-9919 AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST -CONSUMER PAPER Letter to Mayor Hughes - page 2- Based on available information, the tentative effluent limits for conventional constituents for the Murphy WWTP at the expansion flows of 1.5 and 2.0 MGD are included on the attached sheet. The Division of Water Quality is requiring chlorine limits 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 this requirement. A chronic toxicity testing requirement of 1.8 % at 1.5 MGD or 2.4% at 2.0 MGD with quarterly monitoring will be 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. 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 Jackie Nowell (ext. 512) of my staff at (919) 733-5083. Respectfully, David A. Goodrich NPDES Unit Supervisor DAG/JMN cc: Central Files Forrest Westall, Asheville Regional Office Bobby Blowe, Construction Grants and Loans Section Ruth Swanek, Planning Branch Permit File A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL Permit No. NC0020940 During the period beginning after expansion above 0.925 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTIPS Monthly Average LIMITS Weekly Average Daily Maximum MONITORING REQUIREMENTS Measurement Frequency;' Sample Type Sample Location' . Flow (MGD ) 1.5 Continuous Recordin 9 I or E BOD52 30.0 mg/I 45.0 mg/I 3/Week Composite E, I Total Suspended Solids2 NH3 as N Fecal Coliform (geometric mean)' 30.0 mg/I 200/100 ml 45.0 mg/I 400/100 ml 3/Week Weekly 3/Week Composite Composite Grab E, I E pH3 3/Week Grab Total Residual Chlorine4 28 pg/I 3/Week Grab Temperature °C Daily Grab Total Nitrogen Quarterly Composite Total Phosphorus Lead Quarterly 2/Month Composite Composite Cadmium Chromium Nickel 4.77 mg/I 2/Month 2/Month 2/Month Composite Composite Composite Copper Weekly Composite Silver Zinc Weekly 2/Month Composite Composite Cyanide 2/Month Composite Chronic Toxicity5 Quarterly Composite Notes: i Sample Locations: E - Effluent, I — Influent 2 The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85% removal). 3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 4 Applies only if chlorine is added for disinfection. 5 Chronic Toxicity (Ceriodaphnia) P/F at 1.8%; March, June, September, December; There shall be no discharge of floating solids or visible foam in other than trace amounts. 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Flow (MGD) 2.0 Continuous Recording I or E BOD52 30.0 mg/I 45.0 mg/I 3/Week Composite E, 1 Total Suspended Solids2 30.0 mg/I 45.0 mg/I 3/Week Composite E, I NH3 as N Weekly Composite E Fecal Coliform (geometric mean)' 200/100 ml 400/100 ml 3/Week Grab E pH3 3/Week Grab E Total Residual Chlorine' 28 pg/I 3/Week Grab E Temperature °C Daily Grab E Total Nitrogen Quarterly Composite E Total Phosphorus Quarterly Composite E Lead 2/Month Composite E Cadmium 2/Month Composite E Chromium 2/Month Composite E Nickel 3.9 mg/I 2/Month Composite E Copper Weekly Composite E Silver Weekly Composite E Zinc ? 2/Month Composite E Cyanide 2/Month Composite E Chronic Toxicity5 Quarterly Composite E Notes: Sample Locations: E - Effluent, I - Influent 2 The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85% removal). 3 The pH shall not be Tess than 6.0 standard units nor greater than 9.0 standard units. 4 Applies only if chlorine is added for disinfection. 5 Chronic Toxicity (Ceriodaphnia) P/F at 2.4%; March, June, September, December; There shall be no discharge of floating solids or visible foam in other than trace amounts. 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G µ1� 2) _ j 2 7l. 7 c.6 (0.Li w7'�' =( D.ZG8 c 3��+c��CS�8•,eZ� = /�� G-3 3o9z = (a.s�r cFr� r' (5�v �� = 3(z IZ2(,3 e7 MURPHY WWTP Residual Chlorine Ammonia as NH3 (summer) 7Q10 (CFS) DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (UG/L) UPS BACKGROUND LEVEL ( IWC (%) Allowable Concentration (ug Fecal Limit Ratio of 53.2 :1 123.7 1.5 2.325 17.0 0 1.84 921.47 7010 (CFS) DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (MG/L) UPS BACKGROUND LEVEL IWC (%) Allowable Concentration (IT Ammonia as NH3 (winter) 7Q10 (CFS) 200/100mI DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (MG/L) UPS BACKGROUND LEVEL IWC (%) Allowable Concentration (rT 123.7 1.5 2.325 1.0 0.22 1.84 42.50 144 1.5 2.325 1.8 0.22 1.59 99.66 JMN NC0020940 2/18/98 MURPHY WWTP Residual Chlorine Ammonia as NH3 (summer) 7010 (CFS) DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (UG/L) UPS BACKGROUND LEVEL IWC (%) Allowable Concentration (ug Fecal Limit Ratio of 39.9 :1 123.7 2 3.1 17.0 0 2.44 695.35 7010 (CFS) DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (MG/L) UPS BACKGROUND LEVEL IWC (%) Allowable Concentration (rr Ammonia as NH3 (winter) 7010 (CFS) 200/loom1 DESIGN FLOW (MGD) DESIGN FLOW (CFS) STREAM STD (MG/L) UPS BACKGROUND LEVEL IWC (%) Allowable Concentration (rr 123.7 2 3.1 1.0 0.22 2.44 32.12 144 2 3.1 1.8 0.22 2.11 75.19 JMN NC0020940 2/18/98 TOXICANT ANALYSIS Facility Name murphy wwtp Parameter = Nickel NPDES # nc0020940 Standard = 88 pg/I Qw (MGD) 1.5 7Q10s (cfs) 123.7 n BDL=1/2DL.3tual Data IWC (%) 1.84 1 c'ving Stream hiwassee river 2 Stream Class ws-iv ca 3 4 FINAL RESULTS 5 Nickel 6 Vlax. Pred Cw 0 ug/ 7 Allowable Cw 4770.0 ug/ 8 Max. Value 0 9 Ijipg J-214^/ c,Js — Zug @/'� �Q pc( Ni• wS w r %mac' —a W!6-r--1 2/25/98 'PAGE 1 TOXICANT ANALYSIS Facility Name murphy wwtp ; Parameter = Nickel NPDES # nc0020940 Standard = 88 pg/l Qw (MGD) 2 7Q10s (cfs) 123.7 n BDL=1/2DL :;tual Data I WC (%) 2.44 1 c'ving Stream river 2 Stream Class �hiwassee ws-iv ca V 3 4 FINAL RESULTS 5 Nickel 6 Max. Pred Cw 0 ug/I 7 Allowable Cw 3599.5 ug/I 8 Max. Value 0 9 2/25/98 'PAGE 1 3 SUMMER Discharger Receiving Stream MODEL RESULTS : MURPHV WWTP : HIWASSEE RIVER The End D.O. is 7.78 mg/1. The End CBOD is 2.67 mg/1. The End NBOD is 2.45 mg/1. WLA WLA WLA DO Min CBOD NBOD DO Waste Flow (mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd) Segment 1 7.58 0.00 1 Reach 1 45.00 90.00 0.00 1.50000 *** MODEL SUMMARY DATA *** Discharger : MURPHV WWTP Receiving Stream : HIWASSEE RIVER Summer 7Q10 : 123.7 Design Temperature: 23.0 Subbasi n : 040502 Stream Class: C Winter 7Q10 : 144.0 ILENGTNI SLOPEI VELOCITY 1 DEPTH Kd I Kd I Ka 1 Ka 1 KN I KN I KNR I KNR I SOD I SOD I 1 mile I ft/mil fps 1 ft Idesignl 020° 'design' @20° 'design! @20° 'design' @20° 'design' @2O° 1 11 1 1 1 1 1 1 1 1 1 1 1 1 1 Segment 1 I 2.001 5.001 0.618 1 3.69 10.23 10.20 12.90 I 2.121 0.38 10.30 10.38 1 0.00 10.00 10.00 I Reach 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 Flow 1 CBOD 1 NBOD 1 D.O. I I cfs 1 mg/1 1 mg/1 1 mg/1 I Segment 1 Reach 1 Waste 1 2.325 1 45.000 1 90.000 1 0.000 Headwatersl123.700 1 2.000 1 1.000 1 7.720 Tributary 1 0.000 1 2.000 1 1.000 1 7.720 * Runoff 1 0.000 1 2.000 1 1.000 1 7.720 * Runoff flow is in cfs/mile SUMMER .1 Seg # 1 Reach 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 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 Reach #I #I Seg M7 1 D.O. 1 CBOD 0.00 7.58 2.79 0.10 7.59 2.79 0.20 7.60 2.78 0.30 7.61 2.77 0.40 7.63 2.77 0.50 7.64 2.76 0.60 7.65 2.76 0.70 7.66 2.75 0.80 7.67 2.74 0.90 7.68 2.74 1.00 7.69 2.73 1.10 7.70 2.72 1.20 7.71 2.72 1.30 7.72 2.71 1.40 7.73 2.71 1.50 7.74 2.70 1.60 7.74 2.69 1.70 7.75 2.69 1.80 7.76 2.68 1.90 7.77 2.68 2.00 7.78 2.67 Seg Mi 1 D.O. 1 CBOD NBOD 1 Flow 1 2.64 126.03 2.63 126.03 2.62 126.03 2.61 126.03 2.60 126.03 2.59 126.03 2.58 126.03 2.57 126.03 2.56 126.03 2.55 126.03 2.55 126.03 2.54 126.03 2.53 126.03 2.52 126.03 2.51 126.03 2.50 126.03 2.49 126.03 2.48 126.03 2.47 126.03 2.46 126.03 2.45 126.03 NBOD 1 Flow 1 SUMMER MURPHY @ 2.0 MGD Di scharger Receiving Stream MODEL RESULTS MURPHY WWTP HIWASSEE RIVER The End D.O. is 7.71 mg/1. The End CBOD is 2.92 mg/1. The End NBOD is 2.95 mg/1. WLA WLA WLA DO Min CBOD NBOD DO Waste Flow (mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd) Segment 1 7.53 0.00 1 Reach 1 45.00 90.00 0.00 2.00000 *** MODEL SUMMARY DATA *** .Discharger : MURPHY WWTP Receiving Stream : HIWASSEE RIVER Summer 7Q10 : 123.7 Design Temperature: 23.0 Subbasin : 040502 Stream Class: C Winter 7Q10 : 144.0 'LENGTH I SLOPE' VELOCITY 1 0EPTH I Kd I Kd I Ka I Ka I KN I KN I KNR I KNR I S00 I SOD I 1 mile 1 ft/mil fps ' ft (design' @20° 'design' @20° 'design' @20° 'design' @20° Idesignl @20° 1 11 1 1 1 1 1 1 1 1 1 1 Segment 1 I 2.001 5.001 0.621 1 3.69 1 0.23 1 0.20 12.92 I 2.731 0.38 1 0.30 1 0.38 10.00 10.00 10.00 I Reach 1 I I 1 1 1 I I I I 1 I I I 1 Flow 1 CBOD 1 NBOD 1 D.O. I ' cfs ( mg/1 1 mg/1 1 mg/1 I Segment 1 Reach 1 Waste 1 3.100 1 45.000 1 90.000 1 0.000 Headwaters'123.700 1 2.000 1 1.000 1 7.720 Tributary 1 0.000 1 2.000 1 1.000 1 7.720 * Runoff I 0.000 1 2.000 1 1.000 1 7.720 * Runoff flow is in cfs/mil e SUMMER MURPHV @ 2.0 MGD Seg # 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I Seg # Reach # 1 Seg Mi 1 D.O. 1 0.00 7.53 1 0.10 7.54 1 0.20 7.55 1 0.30 7.56 1 0.40 7.57 1 0.50 7.59 1 0.60 7.60 1 0.70 7.60 1 0.80 7.61 1 0.90 7.62 1 1.00 7.63 1 1.10 7.64 1 1.20 7.65 1 1.30 7.66 1 1.40 7.67 1 1.50 7.68 1 1.60 7.68 1 1.70 7.69 1 1.80 7.70 1 1.90 7.71 1 2.00 7.71 Reach # I Seg Mi 1 D.O. CBOD 1 NBOD I Flow I 3.05 3.18 126.80 3.04 3.16 126.80 3.04 3.15 126.80 3.03 3.14 126.80 3.02 3.13 126.80 3.02 3.12 126.80 3.01 3.11 126.80 3.00 3.09 126.80 3.00 3.08 126.80 2.99 3.07 126.80 2.98 3.06 126.80 2.98 3.05 126.80 2.97 3.04 126.80 2.96 3.03 126.80 2.96 3.01 126.80 2.95 3.00 126.80 2.94 2.99 126.80 2.94 2.98 126.80 2.93 2.97 126.80 2.92 2.96 126.80 2.92 2.95 126.80 CBOD 1 NBOD I Flow I Page 1 Note for Steve Pellei From: Coleen Sullins Date: Thu, Oct 23, 1997 8:07 AM Subject: RE: Town of Murphy - EA not req'd To: Steve Pellei Thanks Steve. Coleen From: Steve Pellei on Wed, Oct 22, 1997 1:27 PM Subject: Town of Murphy - EA not req'd To: Coleen Sullins Cc: Mark McIntire As you requested, I researched the 7Q10 question pertaining to the EA requirement and found that they discharge directly to the Hiwassee R. with an IWC of 1.5%. Therefore, they are not required to complete an EA for the 0.2 or 0.3 MGD expansion. I called today and left a message for John Coxy [of McGill at (704) 252-0575] to this effect. Mark, just an FYI. Steve