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HomeMy WebLinkAboutNC0066028_Staff Report_19950614SOC PRIORITY PROJECT: Yes If Yes, SOC No. cc: Permits and Engineering Technical Support Branch County Health Dept. Central Files WSRO To: Permits and Engineering Unit Water Quality Section Attention: Susan Wilson ' Date June 14, 1995 NPDES STAFF REPORT AND County Ashe Permit No. NCO066028 PART I - GENERAL INFORMATION No_K 1. Facility and Address: Town of Lansing P.O. Box 266 Lansing, NC 28643 2. Date of Investigation: June 9, 1995 3. Report Prepared by: George Smith 4. Persons Contacted and Telephone Number: Mr. Tim Church 910-246-2165 5. Directions to Site: From Jefferson take Hwy 88/194 North to Warrensville and go right on Hwy 194 to Lansing then make a left on SR 1347 and go approx 0.5 miles. The facility is located on the left adjacent to the creek. 6. Discharge Point(s), List for all discharge points: Latitude: 360 29' 38" Longitude: 810 30' 33" Attach a USGS map extract and indicate treatment facility site and discharge point on map. U.S.G.S. Quad No. B12NE U.S.G.S. Quad Name Warrensville 7. Site size and expansion area consistent with application ? X Yes No If No, explain: S. Topography (relationship to flood plain included): Facility is located on a flat Two acre plot on the top of a knoll. The discharge is located on a steep 70t downhill grade. There are wood steps constructed to gain easy access to the end of the discharge pipe. 9. Location of nearest dwelling: A residence is aproximately 200 feet. 10. Receiving stream or affected surface waters: Big Horse Creek PART II - 1 a. Classification: C-trout, HQW b. River Basin and Subbasin No.: New 05-07-02 C. Describe receiving stream features and pertinent downstream uses: Pasture land, fishing, wildlife, and agriculture. DESCRIPTION OF AND TREATMENT WORKS a. Volume of Wastewater to be permitted: 0.050 MGD (Ultimate Design Capacity) b. What is the current permitted capacity of the Waste Water Treatment facility? 0.050 MGD C. Actual treatment capacity of the current facility (current design capacity)? 0.050 MGD [/ d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in the previous two years: N/A e. Please provide a description of existing or substantially constructed wastewater treatment facilities: Existing package plant with bar screen, aeration basin, clarifier, pumps for influent lift station and flow measurement. f. Please provide a description of proposed wastewater treatment facilities: N/A g. Possible toxic impacts to surface waters: No toxic impacts are suspected from this 100% domestic waste. h. Pretreatment Program (POTWs only): in development approved should be required not needed X 2. Residuals handling and utilization/disposal scheme: Septic tank hauler. a. If residuals are being land applied, please specify DEM permit no. Residuals Contractor Telephone No. b. Residuals stabilization: PSRP PFRP Other c . Landfill: N/A d. Other disposal/utilization scheme (Specify): NONE 3. Treatment plant classification (attach completed rating sheet) : Class II 4. SIC Code (s) : 4952 Primary 01 Secondary Main Treatment Unit Code: 0 3 0 _ 7 PART III - OTHER PERTINENT INFORMATION 1. Is this facility being constructed with Construction Grant Funds or are any public monies involved. (municipals only)? No 2. Special monitoring or limitations (including toxicity) requests: NONE 3. Important SOC, JOC or Compliance Schedule dates: N/A (Please indicate) Date Submission of Plans and Specifications Begin Construction Complete Construction NPDES Permit Staff Report Version 10/92 Page 3 4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge options available. Please provide regional perspective for each option evaluated. Spray Irrigation: Not enough land in close proximity. Connection to Regional Sewer System: N/A Subsurface: N/A Other disposal options: NONE 5. Other Special Items: NONE PART IV - EVALUATION AND RECOMMMATIONS During the last year this facility had Three odor complaints from nearby residences. The odor problem orginated from repeated failures of the blower pumps causing the aeration basin to become septic. An engineering analysis revealed the blower pumps were undersized for the facility. One blower pump was replaced and the other is not operational. Renewal of this NPDES permit is conditional upon the installation of an upgraded blower pump within 30 days. Signatur49 of report preparer Date �_�- ��,V-471 Water Quality Regic&al Supervisor Date NPDES Permit Staff Report Version 10/92 Page 4 WARRENSVILLE QUADRANGLE NORTH CAROLINA---ASHE CO. 5 7.5 MINUTE SERIES (TOPOGRAPHIC) 451 32030" 452 453 1 260 000 FEET 454 �� STL/RG/LOLS 4.77 Mr. ' 81 ° 33 36 ° 30' �/ \ � \�1 ' 'J� { } � .✓" , � \1 V' �/J � o � its , � L � • -a_— ram- t rr t — � ; .�' � f � t � ' E7°`* �,G'�, ` �'•'. t ��• Ui I J Ir -� �soo. 4039 b' ,10 lit' t .� � 1 �; I .r /%• � / ' /'' 'f r ` l 1"•n �1;}� .�: t�V t �.�� �f" I 200 eM, � ✓ram �} `��� ��� /� --� � � r �t o � • ! , �. _ �"e ; eff If 4038 0 t , TOWN OF LANS ING Permit ## NCO066028 Big Horse Creek, Class C-trout, HQW Quad # : B12NE, Quad Name: Warrensville�r, Ashe County �„ 1 r{ f V ' o J `' `V`"l •-v---.��//��-� \`,\ 4037 D1 q\ Gr • p Off' ' �1 FEET N 4036 ) I& \�' 11 t\\�o 0 4035 27`30" 4034 RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS Name of Facility: 7`O W AJ OF L AA1 S 1 A1(, Owner or Contact Person: J'AIVF PQWER_1q Flailing Address: P.O. County: _ Q4F Telephone: Present Classification: New Facility Existing Facility= NPDES Por. No. NC00 6 6 o z Q Nondisc. Per. No.WQ Health DeptPer No...... Rated by: _ C Eo A aF Sat i 7-N Telephone: flo - 77/- gt.0 o Date-, -Reviewed by:.* a• - Health Dept Telephone: yic 7/ 7- Y4° 6 - Regional Office Telephone - Central Office Telephone: ORC: -TAM r J4U & 4 Grade: =L Telephone: 910- R dM- 2i GS" Check Ciassification(s): Subsurface Spray Irrigation .____ Land Application _ Wastewater Classification: (Circle One) I it ill N Total Points: SPRAY IAiVMT10N CLASSIMA710N 84i8SURFACE CtASSti ATM ��°ck all ittanks� �tdk all units that apply) 1d`,.,__pretiminary treatment (deflnstion no. 32 } Bump tw" Dons a� � pump -dosing "am a,= septic tanks . 4,.,..sand filters 4'—Pump tanks 5._9rease trapRnterceptor _owwater sepandors 6.,_,..__a" Mors gravity subsurface treatment and disposal: 7.___gram 1rapRnteroWor 4`_prossure subsurface treatment and disposal: S`__oil/water separators O,_„__.disinredion 10,__ahemicni addition for mrtrionvatgse oorr;rol 11,_spray irrigation d wastewater In addition to the above elessiflestions. pretrsetment of wastewater In excess of -these components shell be rated using the point rating system and wilt require an operator with an appropriate dust certification. LAND APPLICATIONIRESIDUALS CLASSIFICATION (Applies only to permlt holder) 1._Land application of biosolids. residuals or contaminated sods on a designated site. WASTEWATER TREATMENT FACIUTYCLASS CATION The following systems shalt be assigned a Class i classification. unit;SS the flow Is of a signiticaru quantity or the todmiogy Is unusually complex. to require consideration by the Commission on a case -by -case basis: (Check E Appropriate) 1�_OiUWater Separator Systems consisting only d physical separation. pumps and disposal; ;Septic Tank/Sand Fiber Systems consisting only of septic tanks, dosing apparatus. pumps.sand filters. 40sinledion and direct discharge; s,_.Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection. necessary chemical treatment for algae or nutrient control, and direct discharge; 4,Closed•iocp Recyde Systems; disinfectionIKGroundwater Remed'aatton Systems consisting only of oNwater separators. pumps, air -stripping, carbon adsorption. and d�pos* IL Aquacutture operations with discharge to surface walsic 7, —Water Plant sludge handling and back -wash water treatment s, _-_-, _Seafood processing consisting of screening and disposd. 9- _ Singlo-famtty discharging systems. with the exception of Aeroble Troatment Units, wig be dassitied is permkted alter July 1. 1993 or Iupon Inspection by the Division. It is found thud the system is not boing adequately operated or maintained. Such systems will be notified of the classircagon or recassi ication by the Commission, In w1`11119. �lw foilowin8 scale IS used for rating wastewater treatment facilities: (circle appropriate points) u ``_ ��M W M vows1) tindust" Proreaunert Units or hfustrial Ptetreatrnert'rogram (see ddkdd n s) DESIGN FLOW OF PLANT IN gpd (rot appOcable to non-contarrtinated cooing waters, sludge handing farMin for rater purification plants. totally dosed cycle teystems(sas defWtlon No. 11j, and facilities eonswiry only of kem (4xd) or 0= (4(� (11)(d)i 90.001 • 50.000 50.001 - 100.000. 100.001 - 250.000»_—. — - 250.001 - 11000.000 ...«.rr a Ifi00.001 - 1.000.00ON.r 1,000.001 -&W0,000».r..r...—...•wrw.••r•.w«»w.•. w..rw 4 0 2.000.001 (and up) rats 1 point additional for etc► zoo.OW gpd raga* up to a raaxl:mm d rr......r.�0 Design Flow (end . (�) P MMINARY UNlTSrPRIx Es ( dettntlon Nam � (a) Bar fteasrhs C) � screens. Stack sonsns or Cornrnlrartirtg 0811108 s.. - 1 ) �d) rMedhantov or Astwed 0d PAmorsi - s e)- F1ow Meawrtrrg Owb f) Itistrumerdsd Flow Mamrsm/Ttt ..... ■rr.wr.—.i..rwww+rr.irrr::� o) Preseration....r..... Muent Flow Equalization. - 2 i) Orono or OU Separalots - WRAr•—wrr.r r...r . Mechanlcal.......r.w Dissolved Air FlMIon PrachbAnation... (`) R1Rk�S�Tan(w I&L di•- w 1b) Imhoff Tank �e) Primary Clarl d) Settling Ponds or Settling Tanis for Inorganic No tn• ohrk mal Ma st e (sludge ihartdEing fscpxiss for ewer purification plants. sand. grivef. stonk and cater nttnktp operation except nwasibnal activkiss such as gent or gold mintng).«w...w«ww ti) SECO DkRYTREAii ENTtMSrPfOCIw9.4P3 (a) Careonaaeoas stage (f) Aeratbn•Hlgh Purity Qrtygerh S Dllfused Air Srstsm.»..r...».» Mechanical Alt System (fixed. fl WbV or e+otory Separate Sludge ReasrWon...., - -- a) Tridtf�+o Flier � Highe.»rwwr....■ ■.�w....rrrr. Standard Rate- _..r..r.r.—. Packed Tower w...»«»»»».rw•w•• 10 Biological Aerated Fitter or Aerated Biological Flits r ,..•.w........r...10 M) Aerated Lagoons—.— �) Rotating Biological Contactor Sand Flttem-Werrnfttent bb Recircutattng blotoglcai _ StabOlzallon Lagoons ��r•.«w...«•..w.....rwwwr«. rw..«..• wawa«.-.wwww.»«.•r«N.«.w FIX) Single slags syslsm for combined carbonaceous removal d BOD and nitrogenous removal nbrflication (see definition No. 12)(Poina for this kern have to be in addition to Items (5)(a)p) through (5)(8)(01). ertistztng the extended aeratlon process (sea defMltlon Noss) 0 vtilleno other than the extended astatlon process. Nutrient additions to enhance Boo removal»r«r» Evenous Blobglcsl Cubure (-Super Bugsladdhion. • (b) Stags 0 (f) Aeration • NO " oxygen S 10 Diffused Air System.—......».»...«.r.ww«...... Mechanical Air System (flie4 floating or rot wwwrrr�r.r..rr� Separate Sludge Reaercalon. Trickling Fllter•H91% pate Standard Rate.......r-....••w»«» a Packed Tower—...»...-- .----»»»— 10 Blotogtoat Aerated Filler or Aerated Biological FiRsr 0 fly Rotating Biological Contactors. Sand {'titer - kasrmlttsrt biological /Reckculating blologka ofOR;I��. N WPFCCE �a) iatc. without carbon regeneraf . wAh carbon regeneration. 1 i =b) Powdered or Granular Activated Carbon Feed~ . without carbon regeneat with carbon regeneration Itch Air strlpptng--- 10 jDenlutik atbn Proon 'Efecirodlalysfa...ww...«...w» «—...........rw""'«'r""' .,6 foam Separation...... """"""' ,.waion Excha ge.........»«.««Land Application of Trotted Efffusrt (see definition No. 22b) (not applicable for sand. graveL ...«.wa and other stmltar rntntng operations) by high ate Wltration.» nMkroscnens.»..««»»...»......»»...»..w«w..•..w»w.w»w.w........•..w.rw.............w.«r. ...wr.rw=0 Phosspphorous Removal by Btotogtcal Proassss (sec deftrhttllon No. 25j )� Pollshing Ponds - without ssrat with seat (II Post Aeration asc .....N...N««».......N.N...'.N .«..«.»..N..«...A (en) dl d Or ..........«2 Reverse Osmosis.,NN (n) .MM.»....NNNM«NwN.«...«...N....NS Band or Mixed -Media Man; - tow Treiirrlent NNN...�.»Mw..M..._ processes for mmoval of metal or ryanidsw«.M.w.---15 LPY. P� for rsnovst of toxic materials cow than metal or cyanide 15 (7) �GETRFJ1TI�iTtt (a) Sludge Digestion Tank - Heated (anaerobic 10 . •• Aerobic wN....N.M.»N.w...N.wNNM..»N».....N.».»wNN......ww..MM♦.M.»...N..NwM.....»».w.....»N.N...N.».N.w. Unhoat*dd (anastablC).NN.wL._N,.MN.M..N....N.................N.».w.N.».MMNM....N.M...M.M. M.NM.............w....N....NN. '. b) �cI Sludge Stabilization (aOfnennlcal or w.ww.Nw.N.N.M.w.«� d90 Drying Beds. GravNy.w.wN.M.wN..» • (d) ».N.w..N.M...»».............M.».»..........»NNN...«.»N.N.2 Vacuum AAsslsted.».w.».........N.N.»......._..N..».N..»..»...ww......N.w.w..N.r...N. w..NNN.N....«.S Sludge} M.rilatbn.M.M»..M..M.IM....M.Mw.w..NwN.».......NN..».NN.....NN.».MMM.»-».N w- (0) w.N».«wNw..«».M.wN..««.«.5 Sludge Conditioner (chemksl or thenrmatj f) 0) sludge Thickener (gravity).•.N.....NNN»......».MNNN....N...NNN»NN..... .. A Dissolved Air Flotation UNt �[unat applicsble to a unk rated as(9)(i))NN.M.NN..»M..».....---- ....N._......M,«w.N.NA ng gasstotaN� Sludge Gas UtilizationI)) • ........ 2 Sludge !folding Tank - Aerat d ()) w»M»N...S Ion•ao dodN.M.MM..NN.N....N.N....NM..NN.N.M».M.N.M.N...wNNNMM..N.N.N.NN.NM.M.wW.N. N..M....NN.M........ -2 Sludge incinerator (not including activated carbon regeneration).......NN.N.N.N.»M.....N......NM.».w..N«N........10 k) Vacuum Fitter, Centrifuge. or Fitter Press or other similar dewatarfng devices. (a) ESiDLIALS .....10 UTtLIZATKMISPOSAL (Including inclrwrated ash) - (a) (b) goons.«.wN.N.M.wN..NM..N.+.M......N.w.MN.N.NN.N.M.w...M....NN.WNNMw.MM.w.....1.«.Nw.w.w.......w.NWw.N..N2 Land Application (surface and subsurface) (see defirultion 22a) by c��oynnttnLcting to a land application operator or landfill operator who holds the land application permit or farndi! permb N..N....MNN..Nw.N.M.NN..Nw.NN..N.MM..Y.NM..»NM.N.w.MNN«..MM.MN.M.M....MNwN..N. .M. N....N.2 c() • Dedicated Landfill(burtal) by the psmduse of the Wastewater treatment facfacilityDt�Ci�l (S) a) a_h . _b.rt/a...N\t ton NN.......N..N...N.»NM»......NNM....N.......»»......NNMM.».MNNN. b) c) N......NNNN.S Dechbrkatton ».M.iM»..»».MNN».MM.w....N.«.M.w....MN.MMN».N.»N.M.M.M....w.M......N..«N. N.N.S _`one....»...N.Nw...M.N♦....w.MN...w.NN.»..»».N.MN......»».y....M.»..NwNMNNM...»N..Y.....M....N.NNw.«......NN..N.� d) Radiation».N.......NN.N...........wM.M....MM...N.N.N.............«.N....N............M.N.M.Mw.......M.M.N...N.N...............� (10) CHEMICAL ADDITION SYSTEM(S) ( see definition No. 9) (rot applicable to cfarnical additions aced as tom (3)W. ( fta)(xi)• (6)(a). pXbX M(b� (7)(0)• pa). (o)(b) or (0)(c) 5 points each: -'--•W NM»»M.wN..M...w.w.w..».. .Nw...w.Mw.N.M.N.wS �! �=.-------MNN.NNMMMwww.N NMNMNM...M»NNNNN.»MM NNMNMM.NNNNw..» N.NMN NNMNNM.».•-.NMMN M.NNwMMNw».N»M..NMNN.MNN� (11) NN«MM.»NNw... ........ a bLSCB1AMEOLI S tS1 WFK)Ct�SES (a) Holding Ponds. Holding Tanks or Settling Ponds for Organic or Toxic Materials including wastes from mintng operations containing nitrogen or phosphorus compounds In amounts significantly greater than is common (b) for domestic wastewaterNN..NM.N.Nw..................».MN........w.........M.MN. M. N.wIN.N.NM.w.N.N.».M..MM. N.NN _A Effluent Flow Equafhation (rot applicable to storage basins which are Inherent In tend application systoms)—a c) Stage Dizcharge (not applicable to storage basins tnFwrant In land application systems) 1d) Pumps.w..NM.M.N.w..Nw..».w.MN..»....N.y..M.M.».MN.w»M..»N.M.N. 10) Stand -By Power Supply...N.N.w.N.»...............M.N.w M.N...N.»..».._3 f) Thermal Pollution Control Dsvioo .N..».»..N.».«.».... .».N.N.».».»ft ' TOTAL POW $..N.w..... .• 5. -1 r F7 Class INNN»..NNNN.........N............N.N.N.N..NNN.N.N.N.N.N.NNN»... N.N.N..MN.NN&25 PoIrft Class II.... ••»»•»».».....NN. N.......26.50 Pok" OWN. .........NN..NN..NN.......NN.....NN.N..N.NN...N....NN.....NN..M......NNN.NN.NSIL� PointsClassN...w. N.MN.N.NNN...N.»N..MM.NNNN.NNNNN..N.NMNNNN .Blip Points Facilities having a rating of ons though four points. inclusive. do not require a oenifisd operator. IFadiftles having an activated sludge process wl! be assigned a minlm um classification of Class A Facilities having treatment processes for the removal of metal or cyanide will be assigned a mirttmum classftation of Class L Facilities having treatment processes for the biological removal of phosphorus wM be asatgned a mtnlmum classRkation of Class M. JW4 DEFNITI0NS The following definitions shall apply throughout this Subchapter. (1) Activated Carbon Beds. A phys Vehemical method for reducing soluble organic material from wastewater affluent; The column.type beds used In this method will have a flow rate varying from two to eight gallons per minute per square foot and may be abhor upftaw or downiiow carbon beds. Carbon may or racy not be regenerated on the wastewater treatment plant site; (2) Aerated Lagoons. A basin In which all solids are mai dalned In suspension and by which biological oxkfatlon or organic matter Is reduced through artificfa4v accelerated transfer of oxygen on a flow -through basis; (3) Aeration. A process of bringing about Inttmate contact between air or high purity oxygen In a liquid by spraying, agitation or diffuslong3a) Extended Aeration. An activated sludge process utilizing a minimum hydraulic detention time of 18 hours. (4) AgrkuhuraQy managed site. Any site on which a crop is produced. managed, and harvested (Crop includes grasses, gralns, trees, ate.): (5) Air Stripping. A process by which the ammonium ion is first converted to dissolved ammonia (pH adjustment) with the ammonia then released to the atmosphere by physical means; or other similar processes which remove petroleum products such as benzene. toluene. and xylene., (6) Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperaiums which voiatlftze and oxidize the absorbed Mip dues; (7) Carbonaceous Stage. A stage of wastewater treatment designed to*achieve %econdary' effluent limits; (8) Centrifuge. A mechanical device In which centrifugal force Is used to separate solids from fiqulds or to separate Ilqutds of different densl...ss; (9) Chemic,al Addblon Systems- The addtllon of chemicals) to wastewater at an application point for purposes of improving solids removal. pH adjustment. atkaflnhy conti l. etc.; the capability to experiment wbh different chemicals and different application points to achieve a specific result w1g. be considered one system; the capability to add chernical(s) to dual units will be rated as ono system; capability to add a chemkw at a different application points for different purposes will result In the ssyyslams being rated as separate systems; (10) Chemical Sludge Ccndttton><n9. The addition of a chemical compound such as t[me. ferric chloride. or a polymer to wet sludge to coalesce the mass prior to s application to a dewatering device; (11) Closed Cycle Systems. Use of holding ponds or holding tanks for contatament of wastewater containing inorganic. non -toxic materials from sand. gravel, crushed stone or other similar operations. Such systems shall carry a maximum of two points regardless of pumping faclnbles or any other appurtenances; (12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nitrification. rification. A single stage system required to achieve permit effluent fimhs on BOD and ammonla nitrogen within the same biological reactor, (13) Dechfodnatlon. The partial or complete reduction of residua! chlorine in a liquid by any chemical or physical process 1141 Denkrifieation Process. The convembn of nbrnte-nitrogen to nitrogen gas;