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HomeMy WebLinkAboutNC0020567_wasteload allocation_19810212NPDES DOCUWENT SCANNINS COVER SHEET NPDES Permit: NC0020567 Elkin WWTP Document Type: Permit Issuance Wasteload Allocat!qii. Authorization to Construct (AtC) Permit Modification Speculative Limits Correspondence Re: Instream Assessment (67B) Environmental Assessment (EA) Permit History Document Date: February 12, 1981 This document is printed on reuse paper - iganore any content on the reverse side 1naf * I h NPDES WASTE LOAD ALLOCATION �/'; --AAi Facility Name: �16n Li�U ) j Date: Existing a Permit No.: Pipe No. Proposed Ez Design Capacity (MGD): U Industrial (% of Flow): County: Sur( 4 _ Domestic (% of Flow): ICY�)cle Y S� Sub -Basin: 6 `? -t�7 Receiving Stream: zd��n 12 � Class: - - C 15 NE I_rrir P-r:[ E - Reference USGS Quad: f115 S E (Please attach) Requestor: -Fr Regional Office _(US S 0 SSpC. (Guideline limitations, if applicable, are to be listed on the back of this form.) Design Temp.: ' C Drainage Area: C/ e" Avg. Streamflow: nn � � t _n-1' 7Q10: ,:3 , S c Winter 7Q10: 30Q2: 7 U O CTS Location of ID.O.minimum (miles below outfall): Slope:. 3, (c '/rn, 17 Velocity (fps): I, 5 Kl (base e, per day, �6)-_ a'tL2 K2 (base e, per day,..A9c): ropo5�d QurChaS� ^ot ihsr�+LYri' �ci�71'1RS il1L'. ��l �T.il 11T.: I �� Ilfa'lPi I Effluent Characteristics Comments � ►��ll l ZTY 6Jy1 fowr+ of tlkin ar%d _t�n UJ�t1"f S . Effluent Monthly Characteristics I Average Comments Orr/Aginal Allocation FX j,J ised Allocation Date(s) of Revision(s) 11 (Please attach previous allocation) � 1n_ (' o� P epared By: r-nr%"i 1EBU2Uh IPt-1) Reviewed By: Am Date: I /�� 4 d 41 � n2tlo�1 MEMO. DATE: TO: �'- ,y/�" !e &,e SUBJECT: T 6 L // i / % Fae Ff Fz 14l F 5-0 `�c5 EERoEN7- MW " 7/%lZ v� z- z 47 fiff� J/L7�4s 51 /I -,�Z2 /4,'64, Q 6�z North Carolina Department of Natural Resources &Commun'ty Development RMT WASTE LOAD ALLOCATION APPROVAL FORM Facility Name: Elkin WBTP County: Surry Sub -basin: Regional Office: NPRO Requestor:Ia rry Pierce -Moore Ga ek /lssoc Type of Wastewater: Industrial % Domestic Z If industrial, specify type(s) of industry: aaceiving stream: Yadkin R Other stream(s) affected: 7Q10 flow at point of discharge: 30Q2 flow at point of discharge: Natural stream drainage area at /UU cis rge point Class Recommended Effluent Limitations Mcaithly Ave BODS 30 mg/1 TSS 30 mg/l pH 6-9 SU see s lfec%ed —Tot. Cv. a C Fecal Coliform 1000/100 ml Flow 4.0 M(;D This facility involves the purchase of the Chatham Mfg. WWfP by the town of Elkin, and the discharge of the combined Elkin $ Chatham Mfg. wastewaters from the Chatham Mfg. KWI'P site. This allocation is: /Y Recommended and reviewed by combination of two existing for a proposed facility facilities. for a new (existing) facility a revision of existing limitations a confirmation of existing limitations Date: 2 Sp Head, Techncial Services Branch ' Date: Reviewed b �� � // y' st[C ? / a 1 ' Aiaty' %Cl�i��N'. //, y�,«1V Regional Supervisor Date: / e- Permits Manager C, Da to Z"9 Approved by: Division Director Dater !�. pr��os��l Akin - C'ha��arn �znu-�ac�ur�r►U W WTI J C15NG 13j5SuEzA {-ern) Rr=re a� �ttJdvrt - Caor�e)Ei,. �SSaCr���S' it +ham IElki„- o E114v�-i "Is Ai -rnktny off pu r churn. CVIA,m r11 211u�ac�Jurvv-c6rA �ou.)S di SC 1 WWI P JJ C155chc( p6 nA. w-T P / coal 6 ni n7 J both l ai ll S, al c �1Ha"I�z.r�n 111 ae�vi, Fror-'Nat Is15 on yzjkiIl ► , \-/ - LY�ztllzm {iaJJY�VY V uIcsa �(aksr1c`6*ero Ap�l;-no E go)A IIr'�'r�S -�cX tiiS City — oWh{�� "�Z{'1lit� IrJOU'q sEcot�dzf y ' `J JJ BUD, = 110 mS/j 90US = 30 "'Z�i N t�13 -N TSS aA-e i :, = 11,9 m5�1 �by v�iasS ` i, Sep-Ci1r�41rn"+ Matlut. i ® aaa 16 o 14 CT y WLUTP V --qua �4 e s d ��CT° UpsAre.!-m aS R1 1 oa. iiaz.5-000 - 7cplo = 385c�s R,jr+oW 385 cVB&y m6, 2 U.yy3 /mom2 zVIC- t R p 93, roi Esi, r�nott = q3.a mi' o,g93 cfS/mc; - 19. 1A /vr. 7 Mi 3. 3 (o C(V ..i v� o.Ixrl (3E5�o�°9 4ST = 385 crs DR. ' SO r*+i' : 070, `C i0 C70 DO SA 1 = 7. 6 5 m�l h?I RD� R3 RI R5 L= G,2mi CG.`I I.1 .:?.(j a.C) \nl = I.5 �s I, 5 1,5 I, 5 1.5 Qw: -4,C) o,a I,v J3,� o.l o.o3.S 0.0 y/� 7.39 "A o.o o.o S, C)b ICI = I to �y� 19 . O 1 3G &1 3.&1Q/ma 3,(c4l 3,%`4 3,(04 3,6`I 1<I O.9717 Ae�l GA710 G,Y735 -1• 705-1 day ti, 7oS7 -i, 7057 1,7oS7 9, 7057 Z.O. 7 3.3(0 3. 3 io SS 5.0 "'��I SO 5•C) - j DIVISION OF ENVIRONMENTAL MANAGEMENT January 13, 1981 MEMORANDUM TO. A. C. Turnage //� FROM: Forrest Westall SUBJECT: Effluent Limitations for a Proposed Elkin WWTP I have reviewed the attached memo (1/9/81) from Fin Johnson and have discussed this situation with others in the Winston Salem Regional Office. Basedon the low total chromium levels presently in the Chatham Mfg. discharge and with adequate monitoring requirements in the permit (if granted), the deletion of the total chromium limit is acceptable. If you agree, then the approval form can be modified. I would recommend that Fin Johnson's memo and my memo be attached to the form as backup for this change. If you have any questions, please let me know. I -r 69 n Cv r I'll re,Gc m M P•i d e 41 e-.4 2R j es, NORTH CAROLINA DEPARTMENT OF NATURAL RESOURCES & COMMONIIT DZVZLOpn= DIVISION OF ENVIRONMENTAL MANAGVgW Winston-Salem Regional Office January 9, 1481 M E M O R A N D U M TO: A. C. Turnage d Forrest Qestall Permits d Engineering Technical Services ISranch FROM: Fin Johnson Regional Supervisor SUBJECT: Waste Load Allocation for a combined Town of Elkin and Chatham ::anufacturinr Company treated waste discharge Sorry County Since the Town's Mi'."1' is desil;::ed for .11 11Cll (permitted at a 1. 1 itGD level) and the Town is proposing, to pvrcliase the Chatham twlTp designed for 4.0 MGD (new permit drafted it a 2.9 :[CD level), it necessitated some thought re&arding the limitations for i.nown inrlu;;trin; pollutant levels in the future combined discharge. There may he a problem with TSS proposed since the Chatham discharge averages approximately 45 mg/l and the Elkin discharge averages approximately 27 mg/l. Oil and grease ling averaged 15 mg/l, total chromium has averaged .08 mg/l, phenol has avernrred 14 ug/l, and sulfide .14 mg/1 in the Chatham discharge during the period November, 1979 through October, 1980. Since the levels of chromium, oil and greane, phenol, and sulfide have been consistantly low, it nppears logical to merely require monitoring of each in the effluent rather than to set limits at this point. The proposed 11.4 mg/l total chromium for the 4.0 MGD discharge should be deleted since it doesn't reflect the established level of .08 mg/l (12 month average) by Chathemo the Town's only known source of chromium bearing wnuee. Therefore, we recommend deletion of the 11.4 ng/1 total chromium limit as It would appear to encourage pollution and we agree with the other limits a'--0