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HomeMy WebLinkAboutWQ0002648_Seagrove Additional Information_20200701Michael T. Walker —Secretary Seagrove- Ulah Metropolitan Water District P.O. Box 370 Seagrove, NC 27341 Subject: Request for renewal of permit number WQ0002648 Seagrove -Utah Metropolitan Water District WWTF Randolph County This letter requests the renewal of permit # WQ0002648. The request is for the continued operation of a 30,000 GPD wastewater treatment and 40 acre land application area for disposal of collected and treated wastewater. The treatment facility is comprised of 1) an influent flow meter, 2) a 30,000 GPD package wastewater unit made of a)34,286 gallon aeration basin, and b) a 7,938 gallon clarifier, c) course bubble aeration diffusers with 4 available 80 CFM air blowers, d) air lift RAS pump, e) motor driven skimmer and sludge scrapping arms. The facility is further comprised of a 1,003-gallon chlorine contact chamber with liquid chlorine dosing pumps. The treatment works is equipped with a 150 kw standby generator to operate all equipment. The treated effluent of the plant falls to a 588,000-gallon(0.58MG) storage pond that is equipped with surface aeration for holding treated effluent until land application occurs. There are two pump stations with intakes in the 0.58MG pond. The original older pump station with 2 75 HP pumps applies water to the spray fields for land application, while the second newer pump station with 2 75 hp pumps, constructed in 2007, but soon to be completed, shall move water from the 0.58MG pond to either the spray fields or to a 2007 constructed 2 MG treated water equalization lagoon if needed. Water pumped to the 2MG lagoon can then fall back by gravity to the 0.58 MG pond for land application when conditions permit. The 2MG lagoon is comprised of a synthetic lined lagoon, 2 — 30 HP surface aerators, floating decanter, and hand operated decant and drain valves. The land application area consists of 40 acres with 16 zones of from 12 to 16 spray heads each. The land application area is planted in blue grass and remains green year-round. The application fields are mowed regularly during the growing season to maintain the cover planting and not migrate to trees. The aeration plant wastes solids to a sludge pit once per week which is hauled by a local hauler to the Asheboro WWTP for processing at that plant once every 2 weeks or sooner if needed. The Seagrove -Utah plant was once part of the Luck's Family foods plant that canned various food products. At that time the wastewater facility had significant food processing flows and required the inclusion of a 60,000 GPD package treatment plant, dissolved air floatation for particulate removal, equalization tank, and active screening equipment. Since the closure of the food processing plant, the industrial treatment equipment has stood idle many years and is no longer usable. A process flow diagram, included, shows the unused and active equipment, and the flow routing of wastewater through the treatment works. This diagram includes the unused equipment at the plant site for the reviewer to have landmarks and a better understanding of the evolution of the treatment plant to be permitted. There exist 201 operating spray heads on the land application spray fields. The spray heads are grouped into 16 spray lanes that range from 8 to 21 spray heads per lane depending on the topography. A controller in the existing pump house is programmed to cycle through combinations of lanes (2 to 4 at a time) that were found to maintain an adequate pressure so that either the spray head impactor would receive enough flow to work as designed but that the nozzles do not spray too far onto roads or into the boundary trees. At the current flows of 13,000 GPD water is applied to the fields 2 times per week with 1 group of lanes active at any time segment. The time segments are set for 15 minutes each with 6 segments, a land application event is therefore 6 times 15 minutes. As a result, the spray nozzles operate for 15 minutes each and disperse approximately 50,000 gallons of water over the 40 acres 2 times per week. 201 spray heads applying to 40 acres means that each spray head covers about 0.2 acres. At the maximum flow of 30000 GPD dispersed over 201 sprayers then each 0.2 acres will receive 149 GPD, or 0.027 inches per day, or 0.19 inches per week. LANE ACRES HEADS 1 2.1 11 2 2 11 3 2.1 11 4 3.4 18 5 2.2 16 6 2.6 14 7 2.7 16 8 2.4 9 9 2.3 11 10 2 8 11 2.7 10 12 2 8 13 2.2 9 14 2.1 9 15 3.4 19 16 3.8 21 This table represents the land area and number of spray heads on the Seagrove spray fields where wastewater is applied. We strive to maintain this facility on a minimum budget from our citizens but perceiver in trying to meet the laws that govern us all. Thank you for your help and consideration. Thls lines tloes ocasionally tlischarge aIn water from floor grztngs I" de the empty plant"" should be drvertetl D storm sewers. I HIGH WATER Influent Metz, EXISTING _ ELFA 671' MANHOLES BOTTOM ELEV: 656' INSTALLED At wasewater enters through i '''S ..�,...,..,. r „ .-e�vrovev FLOATING app be upperc er of E^ISTI G INDUSTRIAL SCREENED DECANTER -IAVON GRAIN hlstl b Thepp WASTE CRFFNING INSTALLED f h b h I E`Bt� 2 MG b tl P h gh h TREATED WATER fl tl h EXISTIN EQUAL2Al10N LAGOON h The ly EXISIIN OMF'P ` M' MANhIOL- ti 4 9 l b fl he ASt SCREENING T 12" OVERFLOW. sea tl II I b nbe Oth ghave been INSTALLED pe—dHIv Pl oggetl e ff- P6 L�MH 1 ti IXISTINC q ^ RIM ELEV 674.0' ISTRIDU[ INVERT: 653.5' B /� \\ EXISTING 60H EXISTING 3DK 1'ft�PC3EE:. BASIN \\ INDUSTRIAL IREATMENT DOMESTIC THE MENT� INLET PIPE INSTALLED PLANT PLANT f� EXISTING TH IS INLET LINE IS CURRENTLY ►RGP$9EFY 12' DRAIN f -PUMP UNDER CONSTRUCTION TO LINE 70 EXISTING HOUSE COMPLETE. THE ORIGINAL HOLDING POND INSTALLER I IT TO RUN THIS PI HE THE ENTIRE DI STANCE �' INSTALLED TH E PIPE SHALL BE WORKING �� Ng{ a / AP^'y.. BY AUGUST 12020 - �r - FORCE MAIN i EXISTING W EXISTING CL2 CONTACT VALL VE i INVERT: INVERTS:. �% EXISTING TREATED WATER 661-0 646.5' HOLDING ROME) ZINGNOR S LINES EXISTING e� EXISTING CL2 "'LODGE D Issn FEED SHED RIT LEGEN ITRd kd h RED xare ge A ad b o f b gp gg a,a f bend ,? P ry f .nand not 3 slutlge P PP IY veN2 IY wok9 ball. EXISTING eeks by a pomptruck and Lnesmarork nGREENarell current rr ed to Asheboro VN P PUMP STATION e wastewater pathways through the INSTALLED / W/ 2 EXISTING PI PR6Pfl3E2r SCREENED '� SPRAY FIELD PUMPS L d n BetermLAkCK g, f a g„ SUCTION LINES Iandapplb oftreatedwaDe—ter INSTALLED Fronk s, ever EXI H ING-.,..----,: ' d f 'I'd P FORCE MAIN PUMP STATION 13UILDINC tl PI bIy -the EXISTING TO SPRAY FIELDS 20 MGl g h st ng Wj 2 NEW y tem. C PI fine SPRAY FIELDS �.� PUMPS TO SPRAY FIELD achm tl Taton shall �-.,, Oft EQUALIZATION LAGOONS b ,ompl d byA g st2020 YY w i... � vv ,•` SINSTALLED b ^C•,,. SA FORG MAIN TO CONNECT TORE ISTING HYDRAULIC PROFILE NTS APRIL DFV DFi ©G. AS DID This modlfiedsite--aeewas mad, from the en xo. 9 as built Plans from 2001 and from a si pperto need L on e 2020� Barry King PE# 2]0 1b Survey &, Mapping for: LUCK'S INC. SLAGROVE NC. PROPER �1��✓ / I \�\, K CHLAND TO VNShIP --- RANDOLP OFJTf kv, a �6 tiOKT-I GAROLR DECFIjBER 10, '991 I �S 5,C :"elL l 0 D 0 R ED R Q i392 6� e 05'y S OR b0 M1T ITRACT `^ 1 U D 4 1Hs " M \ T Ft'0 .; D P IREVIDUE _.,F TEY i0.94 TO ACRES CAGLE SURVEYS s � N` Elv':'RE ROUTE #1 BOX 13 Ss n^ BC, TARY SEAGROVE N. C. 27341 �� h f 1PROPOSED ON �E EQ LA � r 1 A9 �V iel � 11I 806 / , j IgIVI c % F,.a_ow -.. TZ „« - _ s T I 4- RIW g 2i'38'w. lS= FARiOW ESTATE r, { T II top 10C 0 200 AID 5Do t �f % SCALE. :N ; E_T JOB 7393 L -- . 6 in A � WASTEWATER TREATMENT PLANT IM1ROVEMENTS EQQAUZATION LAMONS Foe -naE TOWN OF SEAGROVE Hobbs, Upchurch & Associates, P.A. Consultin86ptneers F R R�:s,ovs _ RAND9LPH CONVT", NORTH G/k17UNA SOUTHERN NC — CHAR107f6, NC _ o .. NAGS HEAD NC RALE(GH T, MYRTLE BEACH,SC BFAUFGRT SC - EXISTING SPRAY FIELDS PLAN sGa sw. st _t, soot s.. nortr r..� ,asap e c .< WASTEWATER TREATMENT PLANT IMPROVEMENTS EOUALIZATION LAGOONS FOR THE SEAGROVE-ULAH METROPOLITAN WATER DISTRICT TOWN OF SEAGROVE RANDOLPH COUNTY, NORTH CAROLINA `�YI-A2 HOBBS, UPCHURCH & ASSOCIATES, P.A. I UPI CONSULTING ENGINEERS SOUTHERN PINES, NORTH CAROLINA 28387 REVISED APRIL 2007 GENERAL CONSTRUCTION NOTES GENERAL A. FOUNDATIONS.. CONTRACTwWL BE COORDINATED SO THAT THE CONSTRUCTION SEQUENCE CAN is MAXIMUM ALLOWABLE ME( BEARING PRESSURE = CUTS PSF ON BE FOLLOWED. THE SUPPLIOR/MANUFACTURE REPRESENTATIVES MUST BE PRESENT TO ASSIST WITH FILL a LAP LENGRO SHALL BE "CLASS R' TENSION LENGTHS AS SPECIFIED ALL INTERMEDIATE AND FINAL STARTUPS. THE ENGINEER WILL INSPECT ME FACILITIES PRIOR TO 2, EXCAVARONS AND FORMS SHALL BE REVIEWED BY THE IN TABLE 5—S(B) IN THE ONCE HANDBOOK-1692, UNLESS OTHERWISE NOTED ON THE DRAWINGS. SPLICES SHALL BE STAGGERED SO THAT NOT STARTU,. ENGINEER PRIOR TO PLACING CONCRETE MORE THAN ONE HALF THE BARS ARE AM ICED AT ANY ONE LOCATION. CONSTRUCTION SEQUENCE S. AS DIREGTFD BY 'ME ENGINEER, LOOSE AND UNSUITABLE 9, HOOKS SHALL BE IN ACCORDANCE WON THE AT SPECIFICATIONS, MATERIAL SHALL BE REMOVED FROM THE BOTTOM OF THE UNLESS OTHERWSE NOTED. i GRADE, INSTALL EROSION CONTROL MEASURES AND STORM DRAINAGE PIPING. FOUNDATIONS AND REPIACED WITH COMPACTED STRUCTURAL 2 INSTALL HOPE USED E0. LAGOONS, AERATORS AND RELATED PIPING FILL OR STONE. 4. PLACE CONCRETE FOR WALLS AND S .ADS IN ALTERNATE JOINTS LOCATIONS SECTIONS AND PROVIDE CONSTRAT 10 HIGH CHAIRS FO SAND STATES (HOP) SHAH BE USED TO STEEL IN FOOTINGS. SLABS AND OTHER SUPPERS IN CONTACT MEMBERS IN CONTACT WITH THE EARTH. 3. CONSTRUCT NEW PUMP BUILDING, PUMPS, RELATED PIPING AND ELECTRICAL. 4. INSTALL NEW SPRAY PUMP. SUCTION LINtS, INTAKE SCREED AND CONCRETE SUPPORTS IN EXISTINGIMG HOLDING PONp. TU XI GHUWN ON THE DRAWINGS; OR AT SU FEET MAXIMUM. NOTE: THE EXISTING PUMP HULLOING SHALL REMAIN IN OPERATION DURING CONSTRUCTION 5. PH ©RACING AGAINST WALLS REQUIRED TO PREVENTDAARBL ME. MAGE DURING COMPACTION OF FILL, 6. ALL HILL BENEAhi STRUCTURES SMALL BE SELECT MATERIAL A WATERSTOF SHEET INDEX FREE FROM ROOTS, TRASH WOOD SCRAPS, AND OTHER 1. PROVIDE CONTINUOUS PVC WATERSTOPS WHERE SHOWN ON EXTRANEOUS MATERIALS. PLACE FILL IN .FTS NOT EXCEEDING 8 DRAWINGS. AT EXTERIOR WALL CONSTRUCTION JOINTS AND INCHES AND COMPACT EACH LIFT TO BAD DENSITY AT OPTIMUM MOISTURE CONTENT AS MEASURED BY WOOD D698. FILL WHERE DIFFERENTIAL HEIGHTS OF FLUIDS EXIST ON EITHER SIDE 1. COVER SHEET PLACEMENT SHALL BE UNDER THE CONTROL OF AN INDEPENDENT OF WALL. 2 CONSTRUCTION NOTES AND SHEET INDEX TESTING LABORATORY, 2, WATERSTGO SHALL BE MANUFACTURED OF VIRGIN MATERIAL 3 EXISTING SITE FLAN ?. ALL DICK ILL BEHIND WALLS SHALL. BE SELECT GRANULAR MATERIAL RIVE FROM ROOTS, TRASH, WOOD SCRAPS, ADD OTHER COMPOSED OF AN EABTOMERIC PGLWINYL CHLORIDE COMPOUND MEETING THE REQUIREMENTS OF CORPS OF 4 SITE PLAN FXRANEOUI MATERIALS, CONTAINING LFBS THAN 20 PERCENT ENGINEERS CRD—05- SUBMIT MANUFpGTUREWS LITERATURE SHOWING COMPLIANCE WITH THE ABOVE SPECIFICATION AND 5 GRADING AND EROSION CONTROL PLAN MATFMAL PASSING THE NO. VIVO EEVE. PLACE BACKFILL N LIVES NOT EXCEEDING 8 INCHES AND COMPACT EACH LIFT TO END SHOWING WATERSTOP SHAPES FOR USE. 6 STORM DRAINAGE PLAN DENS TY AT OPTIMUM MOISTURE CONTENT AS MEASURED BY ASTM D698. FILL PLACEMENT SHALL BE UNDER THE CONTROL OF . 3WATERSiOP$ AT CONSTRUCTION JOINTS SHALL BE 6 INCH 7 EROSION CONTROL DETAILS AN INDEPENDENT TESTING INCRATORY. MINIMUM LENGTHDUMBBELL' TYPE UNLESS OTHERWISE INDICATED ON DRAWINGS WATERSTOPS AT EXPANSION JOINTS: 8 EQUALIZATION LAGOON PLAN AND SECTION SHALL BE 9 INCH MINIMUM LENGTH 'DUMBBELL TYPE WITH 3/4 INCIi MINIMUM INSIDE DIAMETER CENTER BULB. UNLESS 9 HYDRAULIC FLOW SCHEMATIC B. CONCRETE OTHERWISE INDICATED ON DRAWINGS. 10 DETAILS i CONCRETE SURGE DEVELOP 4000 PSI. MINIMUM COMPRESSNE T ALL SPLICING OF WAICIRITIS SHALL BE SHOP FABRICAIEE 11 DETAILS STRENGTH AT 28 DAYS, EXCEPT THAT BUR SPLIGESMAY BE FIELD FARRICATED. 12 DECANTER DETAILS 2. CONCRETE WORK SHALL CONFORM i0 'BUILDING COUE SSRLIG 1tOOR—SILUL 13 DETAILS MFNNW_MENiS A AND 'FNVUR-89, NMENTRI FOR RERING CENCONCRETE ,.ACI STRUCTURES'. ENr,EEEREG CONCRETE STRUCTURES". AG s oR-es. } STEEL $HALL CONFORM TO 'STANDARD SPECIFICATION FOR STRUCTURAL STFFL' ASTM A36 14 PROPOSED PUMP BUILDING FLOOR PLAN 3. ED ADDITION —RIME WORK SHALL CONFORM TQ SPECIFICATIONS 2 TUBING 'STANDARD 15 PROPOSED PUMP BUILDING ELEVATIONS FOR STRUCTURAL CONCRETE FOR BUILDINGS, AL 30T-96, EXCEPT AS ODUGHWISE NOTED. SPROAURAL OT-5HVEOCONPORLDE SPECIFICATION FOR HOT -FARMED WELDED AND G, CRAFT CARBON STEEL STRUCTURAL TUBING; ASTM nsbD, cwme B, 16 SE-1 PROPOSED PUMP BUILDING SECTIONS EXISTING SPRAY FIELDS PLAN OF CONCRETE SHALL.BE CURED A MINIMUM 2F I DAYS BY ONE EXCEPT MORE METHODS IFI CHAPTER i E PT 0 E ET OLTS FC EO IN CiUP E 2 0 AC 301-E9 EXCE II —Al OR 3 S1 EEL. WORK SHALL CONFORM TO 'SPECIFICATION FOR E-1 ELECTRICJM. SITE PLAN FILMS POLYETHYLENE FILMS SHALL HOT BE USED FOR THE CURING OF CONCRETE WORK STRUCTURAL STEFI BUILDINGS RENEWABLEEE STRESS DESIGN AND PLASTIC DESIGN." OF THE AMERICAN INSTITUTE OF STEEL E-2 ELECTRICAL SERVCE LAYOUT FLAN WORK JUNE 1, r989, AND THE "CODE of E-3 PROPOSED PUMP BUILDING ELECTRICAL PLAN 5 CONCRETE FORM SHALL CONFORM TO ACI 34TR-TB B4) AND AD MANUAL SP 4. ( DFA, HARD PRAION,CTICE IC RON STEEL STANDARD PRACTICE FOR STEEL BUILDINGS AND BRIDGES:'. EFFECTIVE sEPTEMBER T, 1986. E-4 ELECTRICAL DETAILS 6.PROVIDE. GCNSTRUCTION OR CONTROL JOINTS AT LOCATONS 4 CONNECTION BOLTS SHALL BE 3/4 INCH DIAMETER CONFORMING E-5 ELECTRICAL DETAILS SHOWN ON DRAWINGS. AT OFFSETS AND CFWNOFS IN DIRECTION, AND AT 30 FEET MAXIMUM. CONSTRUCTION JOINTS IN WALLS SHALL BE TO "STANDING SPEGFRATION FOR HIGH STRENGTH BOLTS FOR STRUCTURAL STEEL IOINTS " ASTM A32S-89 UNLESS OTHERWISE E-6 ELECTRICAL DETAILS LOCATED 10'-0' MINIMUM DISTANCE If— ALL WALL INTERSECUONG. NOTED, CONNECTIONS ARE BEANING TYPE WITH THREADS ). CHAMFER EXPOSED EDGES OF CONCRETE 3/4 INCH, UNLESS EHCLUDED FROM SHEAR PLANES, INSTALL EACH BOLT WITH A HARDENED WASHER UNDER THE NUT OR HEAD, WHICHEVER IS OTHERWISE NOTED.. INGWR FOR 11GHTENINO TO THE REQUIRED TENSION. C REINFORCING I —ELOPE, 5. OVERSIZE HOLES AND SLOTTED HOLES SHALL NOT BE USED FOR i BARS SITALL BE ROLLED FROM NEW BILLET —STEEL OF DOMESTIC. BOLTED CONNECTIONS ON THIS PROJECT EXCEPT AT LOCATIONS NOTED ON THE DRAWINGS. MANUFACTURE CONFORMING TO STANDARD SPECIFICATION FOR DEFORMED AND PLAIN BILLET—STEEE BARS FOR CONCRETE 6 WELDING SHALL BE BY WELDING CPFACORE WHO HAVE BEEN REINFORCEMENT' ASTM A615 GRADE 60, FREVIOUSRLY QUALIFIED BY TESTS AS PRESCRIBED W THE RTRLDIRRAL WELDING CODE,' AWN Ei.i-00 OF THE AMERICAN 2 WELDED VARE FABRIC SHALL CONFORM TO 'STANDARD GO CIFICAUGH FOR WILDEIS SILL, WIRE FABRIC FOR CONCRETE REINFORCAMFNT," ASTM A185 WELDING SOCIETY TO PERFORM THE TYPES OF WASS RECORDS ON THIS PROJECT. 3. RETAIL ANDFABRICATE REINFORCING STEEL IN ACCORDANCE AIR THE AMERICAN CONCRETE INSTITUTE 'AGI GRAILING i. THE CONS RACTOR SHALL PROVIDE ADEQUATE TEMPORARY BRACING. SHORED AND GUYING OFFRAMING AGAINST WIND, CONSTRUCTION LOADS AND OTHER TEMPORARY FORCES UNTIL MANUAL — 994,' PUBLICATION P 66 (94) SUCH PROTECTON IS NO LONGS REQUIRED FOR THE SAFE 4 A INFORCI G STEEL N PEACE SHALL DE REwEWED BY THE OF THE FRAMING. ENGINEER ENGINEER PRIOR TO PLACING CONCRETE 8 ANCHOR BELT LENGTHS SHOWN ON THE DRAWINGS SMAi1 5. PROVIOE DABS AT CORNERS AND INTERSECTIONS OF THE SAME NCLUDE DOWNS OF NOT LESS THAN 3 INCHES IN LENGTH, PROVIDE ONE NUT AND ONE WASHER WITH EACH ANCHOR BOLT NUMBER AND GTE AS I.ONGDUDINAL BARS IN FOOTINGS, STABS, GRADE BEAMS AND WARS, DR PROVIDE HOOKS IN HORIZONTAL UNLESS OTHERWISE NOTED, BARS IN ACCORDANCE WITH C DETAIUNG MANUAL 9 ALL STMCFUNCL STEEL., BOLTS AND ACCESSORIES SHALL E. PROVIDE BARS (2 EACH FACE) AT EACH SIDE OF OPENINGS IN AFTER FABRICATION AND BEFORE ASSEMBLY A PROTECTIVE COATING OF ZINC IN CONFORMABLE WITH SEARS WALLS AND EXTEND ')'—O" PAST OPENED. IF SUCH AN LAB D WA NOT OBTAINABLE, T'cRMiNATE THE CAR WITH A 'STALLR STANDARD SPECIFICATION FOR ZINC (HOT GALVANIZED} COADNGR FROM ROLLED STANFOIRD TIS STANDARD HOOk. SHARES, STRIP' WEN FORCED STEEL ES, PLANES ASTM AND FORCFO STEEL SHAPES, PLATES BARS, AND CORNING A123 AND STANDARD SPECIFICATION FOR ZING COATING / IMBRICATE CONTINUOUS BAR.. IN WALLS AND SEADS TO THE LONGEST PRACTICABLE LENGTHS. (HOT —DIP) ON IRON AND STEEL HARDWARE;' ASTM A153. SEAGROVE, N.C. `Hy -It-.-) DDD WWTP JOB SITE- � N �7'BJjj tl VICINITY MAP s ON M 2 H V g3gYO Nm Q.� ` � z ::CA y` S ay NO 00 Z O UN 0 BE no GO ED Z WC 0 CORP t ` � �\ 1 ! t It SPHALT. \tt \\ /AS 'ARCING. 1\ t HAI T f\ _1Y,\ `, <X-- - LEGEND ---- GRADE CONTOUR \\ , /J l / \CA \ \A\ l EXISTING N. \\ { t\ EXISTING E 1 i a --- EXISTING PROPOSED GRADE CONTOUR v l i A r l� GRASS PATCHUT I / t BUILDING I t l W/QUTLfT4 i PIPE\1 - EXISTING WETLAND$ \ ! \ tt lr t -Q, 1 t�� \ 7 -- I u tl i BA a`"t 1 -mot E^d8 % tom' EXISTING VO ASPI{ \ E kI:T \ \ `--—"". l - 1 v a ExrGrlNc POWER 201E_ i aye l4 .�, ,- i _ i_ ,_ I \ tl POWER 400 — ___-__. _...._______ __.--- . __- _ ___ I / ___ __-______.t, p� 1._ ___ASP}1 --------- J ----------- -Pk--POLE %iiF"A / %,, \ EDGE OF DRIVE I( 7 d / �n CAT G PAVEMENT I t _ ' ii � - y „ GRAVEL `a \ �' CATCN BASIN 7 { t T�� >T TRUCK PAR INf. \X W 0 7Lk7 \\ - PIPES _ S _ rJ l t �y qp HP, - _ EXISTING EXISTING EXISTING \� EXISTING (IO iT �.,. '� '" - " --- EXI TING - '� t_ _1' _'24' CMP CODE OF OUTLET CATCH BASI<J' -POLE, TYP,. _ - `- a _..- CAI H BASIN '- _ -� INVERI .- GRAVEL W/ OUTLETZ--- EjBOXES lYP.. W/ OUTLETt�'r ��__ -� PAVEMENT PIPES / `a f ._ "\ I V-., r "ypA EXISTAR - _ APPROXIMATE\ / 82fi .. PIPS /� i II CMP _- a _ �cocnnoN of NVEF'T 880II1 PROPERTY LINE S �.I EXISTING _ �\'Ft 400 fie" TNL A - ,30' CMP - 30 CMP "'6er' o*d�,- INVERT. 663.9J G' EXISTING J 1 / _ ---! Y'- -_ _.-a .EXISTING WATER LINE i _-/ ' EXISTING tII GNP �- _ - '/ i T, A•-� +- -'1S CM(' - - ,\ 70 BE ABANDONED INVERT 68t H4 - l`t_ - / /- �_G E Y _IM1VLRI tiII0 NJ -`t F - / _ lI u/ EXISTING �> / �� - �- -' _ a 1 /// / . / � ,(X' EXIST NG 30K $ T EXISTING WATER LINE 1 - .� DGME.;TTC IREATMENT� < `30 CUP L �..,. i I A i. \ -EXISTING / - TO BE ABANDONED ``0 - ((Siff , PINTI CHIP INVERT: B82.SL \ \\\JA„ INVERT 683.29 ... - - - _- �1... _. \ ) _" J,� EXISTING 60K \ LT __ _ 4 f L- (1-�_,.� INDUSTRIAL IRE41MLNT-. _ �-aax '�' 1 C "EYJSTING JV i' 'T FLOWE9 -F �. B VL 8 tR� .+. P \ . AN k y INv FE'EXINCE O� 7\INV NSI J� �•N,Z T ^., 4\ EXISTNG OLD \ tY g QOI vqL W z ING J �a l-1ZAFdN I Z � I 1 ABANDONNED WELL�\ t �`. Wa °'A - fix: ''EXISTING i w 4' SLUDGE OSTIN�_ A G LOJ� vFW - ONES / ✓ T i —'(\ I T iiEEXISDNC TREAItiD � \ 'EXISTING n �_w J' r; 'C _- _ /(1 j �� / /i // WATER d S �� ' Wit PUMP HOUSE % / WElLANP !r "'ey WETLAND L - •,}• I 1 r IXISUN G.INTAKE �t 1q�\ �6' FORGE MIAIR �i "'1.r.� ^ 1 } SCREENING AND 1 t" t TO PRAY HELD SUCTION LINES ) t WETLAND- - --- i _ ISTING T- ED WATER r ^� BEAR HOLDING POND � -_ - - __ � � CREEK 1 f \��. WETLAND " o (�, -- iBEAR CREEK "' ""_ = _--_ �1wr __'' 'r EXISTING SITE PLAN BEA CREEK p 100 200 300 400 A Io zo aq,ao so 500 690 700 SUO SCAI.£ IN FEPi // GRAVEL \_ m EXISTING GRADE. CONTOUR 1 \\ �- BRACE CONTOUR `` , �r CHAIN LINK FENCE , `�' SILT FENCING V OF DISI URBANCE \ l \\l\ ` CON; \ \\ ...'\\1/ // \ \\ \\ -C \ t 1 ly" U{ I \ ZS \\ 1\ f I \za` \ I I Nip 1 \ 1C \\ l\ t \\ GI PROPOSED PROPOSED o-.- -.-� PROPOSED LIMITS �y -"�'){/�� EXISTING WETLANDS \ 11 \1 \\ \ ll\{t 1�Ga.'.Y PROPOSED ROCK SILT SCREEN 1 \ `. /A \ \\\ 1 \�I� \\\ \\\ �\ 1� �► PROPOSED ER. CONTROL SWALE „- APHALT .:� - AHALT (t i ORI SE 4 RIP AD LINED SWALE. 500 __ - ..— __-_ _-----___ g \X� EXISTING 1 i i BUILDING GR AI \ k 1\ AREA OF DISTURBANCE 1 f \\ 3,03 ACRES TO // \\ I Is ASPH L7[MPP NAM iT -..- AA 1 - A--_ .:: 400 -_- GRAVFI. ___ --_ __.----_____ ..___-. _ \\ "� —__- _.. -- DRIVE Ail— TRUCK PAR ING �' f % l EXISTII \ CATCH G BASIN - i a t EXISTING .... I GRAVEL I' -EXI EXISTING EXIST�G LGHT OUTLET POL TfP EXI ZING BOXES, TYP / CATCH BASIN / ING jj()L-_1 2 �` 1 ..S'���..o 11t1 IIII SEE STORM DRAINAGE PLAN' FOR STORMWATER DIVERSION PIPING AND SrRUCTVRES '-. ,--- 335.ao'- DRIVE '�, i/ t J 1� 1 g' t I� ,ya \ %'�`�~ a CAT H BASIN j----'�`"J / ., Iht - - _�'-. io' - _ -- '!3 -.____ PROPOS ! I V1 \ GRAVEL I OPO ED P E\l EXISTING �,;„ .D j it t °{ (\'WIANHOLE #1 \ FLOW a Fyn "'2'�' - x t.,Od �- -- _ _- - .�. FLOATINI T 1 i / 8 v _-RIM ELEV: 674.0' EQUAUZATION I RT: 653 v' " TANK 4 i] - ems._- / { f �� ______. PROPOSED 6' Pvc GE GO STORA � a DIP \ I �{ / m I Ii BRAN LINE PROPOSE g p 5,26� GA LONS _ ----_,�- FLOATING _ + i e ec - �i- 1'r" DIP ` * 1 k t ol i GV _PROPOSED \ i '-t 1 RAVEL 11 41{ Y _ WC I 1 { i1' p 4 itn II _---'-'-- I ----'-""` AERATOR TYP. OF 2 \ 0 ERIMEFEO: i 1 EXISTING 3 RAIN LIh{E 12 D_LP `� 11 { 1 TREATMENT TREATMENT K Z J 1° 1 I i HIGH WATE2. .. UNE ., 1 B"GV 1 _ I OVERt LOW t ° L C {' \L>•�" Pli\Ni -- 1 @ \ ._.-_-F- o � __Il � NDUSIIRIA60K i TREATMENT g 200 ID REMOVE 80 LF •/ Y `^�'� EXISTING SECTION OF \ -'gyp Oj µ�s%G ` \ o / I{ EXISTING FENCE }. II k SLUDGE o Z PROPOSED 6IST ! y EXISTINO io L.A�R.. 8 PVC SDIT 35. FORCE MAIN p _.o o _ i ° EXISTING \ ySPRAY p PUMP _ U`�i o` T FJ�~} INVERT HOL10E �z �a d W o PROPOSED TICE tF 0�6' ! r VERTS: �j ` 'PROPOSED H oz EXI STING / c--- TALL CHAIN LINK FENCING W/ 6 10'^-� �A I'O- WEIILAND f )) EXISNNG WLIFT AND . 3 STRANDS &ARBED WIRE t PROPOSED It 1 SPRAY i -,` INTAKE_ - _ �j V HPUMP SCREENING-_ RREAlG HOUSE OUSE _- � -- "E �. t -fiREATED W _ ---_ I < EXISTING WATER TO �` DIMGPOND �f '+ CREEK_-_-_ y4 ONE EXISTING tll3AN00 U WETLAND. \� IIIEEE n. APWL 200i t ♦ a... �r -BEAR CREEK '�w ♦�'.' EXISTING �" W � FENCE w^•iw \._a__ Ia _'°� F 4 f - I � � +»i�EXISTING FORCE FiGL �►"'";' iMAiN TO SPRAY FIEF. INS _ AS INDICATED / - SITE PEA ; EXISTING WATER (NO ADDITIONS OR CHANGES ,i LINE TO RE TO EXISTING SPRAY FILELDS) ABANDONED I 4 0 100 200 - 300 0 iQ 2Q 30 40 5Q 400 5d0- scA,e w FECT fiC�O 700 800 1s NCO LEGEND ---sue ---- EXISTING CRADE CONTOUR f \\i\ - - - / 1i asa PROPOSED PROPOSED / GRADE CONTOUR �/'� \ \ CHAIN LINK FENCE '' \\\\ / 1 // I \ O \\ \\ w t PROPOSED SILT FENDING o� LIMIT$ EXISTING cy OF DISTURBANCE CONO\\ WETLANDS A \ PROPOSED �! ROCK SILT SCREEN ` �.. / \ / \\ SPHALT 1\\ \\ f1 J{� \ i �. PROPOSED KIERAN J ER CONTROL SWALE � / LINED SWALE \ \ ARKINGiR EXISTING {i \)- `\ GRAS l 1 1 AREA OF DISTURBANCE I I/ BUILDING I // i \\ 3.OJ ACRES \ _EXISTING POWER PO TTP A ^_ 400 --- PROPOSED, ..'.. / 'x GRAVEL RUCK PAR fA < FENCE GATEoz 1 TYP OF 3 INC A \ EX STIR CATCH f..e-m'Q' `-� ^' .r t� l��! BASIN.�i\ sa Nm� H m ^ t — ad II hXi II CAT _- _ EXISTI EXISTING �' -' / CATCH BASIN / q..y ''.-- - TING n 1Eo ,y. H BASIN E v." -- // ._ SEE STORM DRAINAGE ...-y -- --- ---` i� , PIAN SHEET FOR STORM s°'� - - DRAINAGE SIRVCTURES5.0� I J _ _PENCE GATES - - s j� �IYP OF 3 G __"- - ""r d - t ��(1 T L 1� 0%REIEI RING'L y -----_ l _ ___ t --� - EXISTING -.-- flE12�My.-� _ ' z� ,L. p R ti Ga - {\GD lam" _-__ _ ..cllu __ y t __� i -. ,�_ _ K,n -- EOUALIZATiO __ �.. - Yfi ti.� fI i SWALE #2 KJ 'TANK h j r11En END__ � E L�i - rr `INVERT OUT. '- _ p�'6. —.' YIZvPO� GALLeWS " 5�r� __\E• y. 1`� RIM ELEV6760 UMk� Yi'- 1 ' � �'� �• SWALE #1 WATER J ��- MNHESMH _-_- .A R RIM EtEV: 668.0' '• zqqJ ILT FENCE--. k ..OS.D�,M "4!`tINVERT6560'� 4� -.\ � '� 62 :7fi PFEN E GAT E _ l SWALE #2 _ - SYP OE 3 "k &&.}�. Ei iDG ____ I' -_ _ ssa5 �_ l- - 4 SLUDGE �g �o Z SEDIMB TAE(0 SILT FEMCE�-'�� u BASIN #1 IPRA / . PROPOSEDo8 N /R P ` �f�rQD7SSIPATOR L.%� PUMW ���..z� oa W / W T ND # SWALE IA h� - QQQQQ HOUSE _ \ } "PROPOSED SDMH2#� r f2lFRAP __ ) I" \ 1 t � EXISTING [f\ umil 0RIM ELEV� " ` t y #bISSIPATOR I 1 t HOUSE TREATED WATE"- Q Kw � Z VPOND Wh RANDSBEAR CREEK / DELINEATED i E\ \,'.IEXISTING APR IL 2 OOT / ENCE EXISTING, C AREA OF DISTURBANCE' �/ IA` o k DEW / / _—�� EXISTING ©EAR CREEK -'- ,__ MAIN T0.5BRAY El< 3.03 ACRES _ :B 1, ...� Ftnaeo ENo � l ._--'l '� .� +�,INVERT OU7 i� -' - - _ 1. i 6485' N DFW BGL / / WATER LINE BE ABANDONED GRADING RIPRAP I �� +.`�.�..nc ✓ BEpIj -� WOODS LINE AND EROSION CONTROL PLAN DI$51PaTOR „.—WEXISTING WATE NGR SINE CREEK +'' TYPICAL #I ATE FD k3L ABANDONED"Ell- —"AS INDICATED 5 J —� _— --- - i -------- 0 100 200 300 400 a 1oa z 500 6qO 700 800 SCALE IN FEEL 16 EM34NhMNN1 ....�� w o- fF EXISTING ,� i - PRDPOSN OR 3 _'� L___._______ ___ CATCH BASIN JUNCTION 80X #3 "' ___________ RIM ELEV 690 0 PROPOSED EX STING 30" CMP STORM )r2AiN PIPE INVERT. 6740 FENCING INVt Ri 683.97 - )� � z AL V I'\1\~r� _ EXISTING iH CMP ft00F DOUT: `F PIPC \\ ----- _ FX19TIN, GE' CMP." -Y- Ic+- = D11!F \ ^� "- -rE+JP STORM DRAIN FIFE 1_ >� _INVERT OUT. 680.87 =.3��.�,'.IS � INVERT- 68�4.Li�b- o 'tk - i PROPOSED 49 lF- - HOPE NORM _. - WATER _� WATER PIPE c �tlNC'Tt9P-'� ,Y T\ \ _ ^�1 i _L_ PROPOSED 76 LF '678 S6"4 HDPF STORM= FLARED AND WATER PIPE -- ---- 673— J 1 INVERT OUT '-'�-"�--------_6 71 6780 U -� 3 FENCE SILT SILT FENCE �. �T _. r T SE" PROPOSED sf4�['� " - FENCING - -IAI" "S �i �'y� so- OD PROPOSED KIPRAI - 7 �„ IS EI O FT LINED SW #1 ,. '-.-_ `� - -_.,. lV^,. // bt4 2 OQ5,2 d .R ---- \ GA r rLLQN S . '� ----- =— ------ a m �Q�-�., -- — 1 G 0 ^70 20 30 40 50 02 •C� � �' STORM DRAINAGE LAYOUT N. SCALE IN FEET `;IV' 1 1 ( I 1 \lk 1 ii-_.._--_ - aILT FENCE i \ i F. i t IIt 1 ( Il, - _ S i TYPICAL x iy it 11 11 I\� \\) I i \\ , - V J �p I !'[. It O iT1 ➢ /7 I PROPOSED TREATED ii O ';l WATER FORGE MAIN is f t i f T, I\i PROPOSED 1 i IFROM \ I. i / \1 0 PROPOSED, I PUMP OUI aDING ,:.� t 1 1 \ t I I l l i j ;\ T V , TT / I i C �FENCING 7 - f, )A}� I � IT 8 C T 1 I J I _\ii F o PROPOSED 5 x5'' i \ ) , .. i} STORM WATER PROPOSED +� ( i II I PROPOU D TREAT .- - tT c 51 >I \ `y Tl Q, �s o T� ,, JUNCTION BOX #1 ! i. 1 � i :! -i. RIM ELPA 636.67' \\\�> SEDDENTATIONy _--1 ` / \-- - ,WATEF: FORCE MAIN 1 ( _ 1. ` / ° "y, `i *,T INVERT. 66II_0 RAP #i 1'--- I i FROM. PROPOSED �� 1 �� , _ \ \ PUMP BUILD�IryrG T \ PROPOSED 173 EF"i:0 ,\ 1 jIr i m HDPF - 1 T ■{?f , x1� i \ `` \ \\ �1 �- "- S E ,\... STORM DRAIN PIPE' F t �, I ,7 � , � }�\ 7,� �� -,� ST EXISTING L i i Y _.CATCH BASIN INVERT: 6 AND 24" PIPING t ` \ ? EXISTI 24" CMP Z. Zo � p I STORM WAT PIPE BEAR CREEK i I o `'xtom: �-' �f qtg �' INVERT OUTI6S1 67' oa y { o CONTRACTOR SHALL RENTAL FLARED END t 1 I i \ 4-� Z89 ' i -i ® i!�AND REPLACE EXISTING �q, T �' yj,,.� _MANHOLE TOP INVERT OU ' - ) I �s \ T 1 tii 4 �, ) FENCE AS PEQUIREU FOR a'd1 T t �"---��"/ i TYPICAL ti48.5' i•('({ ° CONSTRUCTION AND uRADiNG y'o 1t ■a■a� I� f/, �� �Dt9�,r•�" X �� rMANHOtE #SOMH2 \ �\ -{ \\ Sr% .-, \ = Y\ \ ✓ T \ ` / �. PROPOSED STORM WATER i 2007 Id RIM EIEV 6590'rPF20POSED STORM WATER -- 1� 4 1 I' 'INVERT: 652.0' \ \l \ \.\ f '`„MANHOLE #SQMHi 1\ >L t •i {� t t` '�� �APRIL DFW �,y""•� 9 11 I \ V RIM FLAB 6880- L \ 1 y 1 StW ER G ATAOY EVENT TUB 0 a \ SAC !`�" ��� DFW Ttj1 'I to a , x > I v �« o SOL 1 i \ i� v� \ �� \� , �- _ L ) �� \ INDICATED EXISTING TREATED WATER _ L }}, HOLDING POND \'`�v — `�'} ' 1 �� "SST r j \ aAS s 0 10 20 30. 40 50 STORM DRAINAGE LAYOUT �•=•-I—•} '--I—+-j SCALE IN FEET - is I P OF. HANK PERMANENT SEEDING SCHEDULE PERMANENT SEEDING MIXTURE WITH NURSE CROPSTONE SPECIES RATE (LB./AC'RE) ROW OF DITCH DATE - �_.____-_-_, TAIL FESCUE & 100 SERICEP LESPEDEZA 30 AUG 25 - OCT 25 SECTION VIEW PENSACOLA BAHIAGRASS & 50 QR NATURAL STONE KOHE LEEPFDEZA 40 FEB15 - APR 15 GROUND CHECK VAM �^ 3 TEMPORARY SEEDING MIXTURE — 11 SPECIES RATE (LB.fACRE) DATE , �.. SHOULDER (PROPOSED PROPOFSED DITCH) - DROH SLOPE BACK LOPE - ANNUAL RYE (GRAIN) 8t, 120 CROSS SECTION KOBE i FSPFOFIA 50 JAN 1 - MAY 1 GERMAN MILLET AS .1 1 - AUG. 15 TEMPORARY GRAVEL CHECK DAM ANNUAL RYE (GRAIN) 120 AUG 15 DEG 3O r11 D.. ' sn TFENCE UIG F.CAL STO E DYN L BE SILTEENCE rY£ h { y LASS 'B TUNE FOR €N.G. .CR-L IERXUALS, CLA ENT i?4yCE }.. CON ARE XTONE SHALL BE ?N' E T.. �: �TAl 85 OR $5T'-E. 2. OUTLETS TO DE PLACED AT LOW POINTS IN SILT FENCING, TO_ PP EW SIUTFUSB-\ 'M-ENCE OURENI CANTROI -, �' STONC I N IOW 1' STRUCTURAL STONE 1'-6" WIN. CADS: SECTION FRONT VIEW SILT FENCE STONE OUTLET DETAIL NOTE: - -- TEMPORARY SEED MIX SHALL BE USED FOR ALL AREAS EXPOSED GREATER THAN ONE WEEK AND SUBJECT TO FURTHER MSIUN3ANCE. PERMANENT SEED MIX SHALL BE CHECKED FOR MAX. I DEPTH -TITER FACING AND 10EATOED WIT( WIREa RS ADEQUACY ON JULY 15 NON-WDVEN GEOSYNTHETIC B 8 O.C. WITHOUT WIRE SOIL AMENDMLNIS (TILLED l0 6' DEPTH PRIOR TO SLLL)ING) RFAHRc RIPRAP"'A _ APPLY AGRICULTURAL LIMESTONE - 2 TONS/ACRE AND THICKNESS VARIES SEE CHART BELOW APPLY FERTILIZER AT A RATE OF 1,000 LB/ACRE (10-10-10). NOTE: CLASS A RIPRAP 2" TO CLASS B RIPRAP 12 TO 12" CI ABE RIPRAP 5" 10 15' _ u ��T�' MULCH CLASS II RIPRAP 9' TO 18" A MULCH - 2 TO 2 1/2 TONS/ACRE - SMALL GRAIN STRAW OR EQUIVALENT COVER RIPRAP SWALF COMPACTED_/ BACGHU- T ,a ANCHOR - ASPHALT EMULSION ON SLOPES. ® 430 GAL/ACRE (TYPE R.S.) MULCH ANCHORING TOOL SHALL BE USED ON ALL OTHER AREAS. ., 3 EXTEND FA ITT AND MAINTENANCE MAX. 1 _ WIRE INTO TRENCH REFERTILVE IN THE SECOND YEAR UNLESS GROWTH IS FULLY EXCELSIOR MAT 2' OVERLAP AT SEAMS SILT FENCE DETAIL AS GUSTS. MOW TO 3"Mf. WHEN AVERAGE Hi OF GRASS BECOMES 5'. STAPLES 2' 0 C B NTN RESEED, APPLY SOIL AMENDMENTS AND MULCH DAMAGED OR DEAD AREAS BOTH DIRFC'TIBNS 12"-j}5TD IMMEDIATELY NU BE: WASHED 510N€ 'S.-G� MIN --CLASK "H" RIPRAP .MOWING MAY NOT BE NECESSRY ON 2:1 SLOPES, RESEED, FERTILIZE AND MU1 CI} DAMAGED 1L:PREPARE, 9EED,AND INSTALL SOIL EROSION CONTROL -8 ig^ , ROODAMS AREAS ON STEEP SLOPES IMMEDIATELY. BLANKET ON DISTURBED AREA OF DITCH. 2 ) EXCELSIOR MATTING 'MIL BE NAG S1506N OR AN X "1 "E (. SSIP FLOW RCP AT 1 5% 7G RIP-RM IB E QUIT 7 �u _ " FLOW 1I L_,T �__ OE INSTALLEDFABRIC UPOg1ER ALL PIP -RAP. RIP —RAP DISSIPATOR N.T.S. ATOR APPROVED EQUAL MATTING. NATURAL GRADE a EXCELSIOR MAT SWALF -- TRAP BorroM TRAP LENGTH —'7 - NON -WOVEN OE05YNTH8'IC FABRIC CROSS SECTION UNUERLINER. WITH AN 18" OVERLAP 6" MIN -{ IFTUL FABRIC W/ TOPSOIL AT All SEAMS (TYP.) AND SEEN B, MULCH DESIGN 2 1 MAX OVCRUI1 B" 3 SETTLED TOP SIDE SLOPE OR SETTLEMENT 3 t/?�' i MAXI ETA. r i � -( /�2g,. _ ._ WEIR LENGT�}i I --EMERGENCY SPIT IWAY 1 6' BELOW SETTLED TOP I ;21/ PREPJ E �ARE AS SPECIFIED T2:"T -NATURAL NOTE NON WOVEN 4 0 C,ROUND OVERLAP SHALL BE 2" MIN. GEOSYNTUCTIC MIN TT'' - ' F 1:1 SIDE SLOPE AND BE LAID WITH OVERLAP FABRIC UNUERLINER I BECOMING ON DOWNSLOPE.. "ENKA-MAT" SWALF D� NOTE: .__-.._ IBM wlaiH_ 'i SEDIMENT CONTROL STONE STONE SECTION SHM I. HE. NO 5 OR NO. 57 STONE AND SHALL BE PAID FOR AT THE CONTRACT UNIT PRICE PER TON "SEDIMENT lm TEMPORARY SEDIMENT TRAP DETAIL CONTROL STONE', T NE'SHALL BE A NOT TO SCALE MINIMUM OF ONE FOOT BELOW THE SHOULOFR OR A , �III��II®®�� �iliY� A- SEED ADD MUCH EM: EXCELSIOR MATTING RR:.WPRAP DIVERSION POINT A TOTAL SEDIMENT TRAP VOLUME OF 1800 CUBIC FEET PER ACRE OF DISTURBED AREA 11 SHOULD HE PROVIDED SOME TRAP # WIDTH LENGTH DEPTH LENGTH C D GLASS OE THE REQUIRED VOLUME MAY IF BE PROVIDED BY OTHER UP OR DOWNSTREAM CONTROLS. 9 I J O O CIS_ Z O 02 O DO DO SEDIMENT TRAP DIMENSIONS EDGE OF EIEV: 67 _.-- --------- _._.___._.. __—._____... EDGE OF BERM EIEV: 673' GERM 11 _._._____.________ _ ___._______________________.__ i - TOP Of SLOPE: 673 I i F I i l I MAX WATER I-1 671.1" PER DRAIN PER. ORfJN 51.0' (NEED — 3 I INVERT: 652.9' i I I A :..i PROPOSED 6" PUG PROPOSED STORAGE LAGO N N' DIF DR IN_ NVERT 65a' Pf RFpRAIFD PERIMETER 2,005,265 GALLONS I DRAIN PIPING J GAL 'V OVERFLOW _____________________________________- _____.�_____ I II 12. r KLLVO Fi56' 7-7 _ __ 12-DIP-- _______________/INVERT II l 51.0' 30 HP FLOATING AERATOR FLOATING \ W/ FIXED MOORING STAND DECANTER \ PER: CHAIN TYP.O1 2 HOPE LINER PER. DRAIN INVERT: fi50..2' \ : 652.75'MAXATERLEVEL71D' _______________ OP OF SLOPE, .11' __ _____ _____._.__._ T.._ __GV_____________ ___ ____ ____ 777 - iy 12' E W A fl" GV PROPOSED MANHOLE #1 RIM EIEV. F'4GL WERT: 653.5' 12' EVE SOT 21 INVERT OUT: 653.5' 12" PVC SDR 21 EDGE OF DUPE 3'X3 PLAN LINE: R. EDGE OF ALRM CONTINUOUS PROPOSED 6" ELEV: 673 HOPE LINER PVC SDR 35 PROPOSED 105 LF ANCHOR TRENCH FORCE MAIN 6" PVC DRAIN LINE TO EXISTING HOLDING POND INVERT: 651.0' 12' D.I.P. 3'X3' OVEN' CONTINUOUS --_- -- - - --` PIPE --_--' 335.0' --- PROPOSED MANHOLE #1 - RIM LINER ANCHOR TRENCH ""'--- W HP FLOATING AERATOR W/ FIXED MOORING SIMID IN" OFF ELEV: 3.5 INVERT: 653.5' T VOF 2 OVERFLOW WU BAR MRX WATER LEVFt 6/1 0' --2' FREEROARO. GUARD : 12' OVERFLOW TOP OF SLOPE: 673 __. _.__ T__.. _--_________._______ _ —INVERT IN: �% 665.0' 3 �9 1 = DOTTOM F1,EV: 656` - i2" DECANT NVERT IN'. 555-a' DERIVE] IF R DRAIN EARTH PERIMETER D.I.P. DRAIN IN DRAIN INVERT IN: 12" PVC SDR 21 - 653.5' INVERT OUT: HDPE LINER 653.5' SECTION A —A PROPOSED EDGE OF NDPE LINER GRADE FOLDED AND BURIED INTO CONTINHOUS EXISTING GRAPE 3'X3' TRENCH, EYE, NOT,: 1HE SOUND GRADE PROFILE INDICATED - _- GM _PROPOSED ----_____ TOP OF GRADE SHOWS EXISTING GRADE AT THE MIDDLE _________ _ OF THE IAGO— I _I - SUITABLE HOPE IINFR-- I FILL - EARTH- _ TRANSITION FROM 8"` N _ O.I.P. TO PVC SECTION B—B 0 ao 30 Oro. 50 ,110 EQUALIZATION LAGOON PLAN AND SF.CTIONS SCALE IN FEET. „ „ o „ �I A,,; �- HIGH WATER EXISTING TL �, ELEV: 671' MANHOLES \E G BOTfOM ELEV: 656' PROPOSED fLOA LING EXISTING INDUSTRIAL r SCREENED DfCANTER LAGOON DRAIN WASTE SCREENING it PROPOSED 2 MG�... d IREAI ED WATER r EQUALIZATION LAGOON EXISTING MANHOLES EXISTING DOMESTIC 12” OVERFLOW �a'N,A TF SCREENING � r PROPOSED MI #'I EXISTING /� I"6 $ RIM ELEV: 674 0' DISTRI6UTION A4 INVERT: 653.5' J BOXES q t\ _ 1 W ' ✓ EXISTING 60K FXISTING 30K~ PROPO4CP BASIN \F V INTREATMENT DOMESTIC TREATMENT ,¢N /. y�C�+ - INLET PIPE. PtANd PLANT X( EXISTING Q a4m iii PROPOSED 12, DRAIN ,yrY / 'iL PUMP off w 1 1 I LINE TO EXISTING FjT fr HOUSE y HOLDING POND PROPOSED B' FORCE MAIN 1 EXISTING ( it 1 EXISTING Ct2 GON'fACi INVERT: INVERTS: I Ji $ y —as EXISTING TREATED WATER 651.0' 646.5 HOLDING PONDr r _EXISTING WASTEWATER FLOW EQUALIZATION TANK EXISTING Il �r,G.�` LINE ION \ LINES \� 4� EXISTING EXISTING CL2 SLUDGE 1. FEED SHED PIT w EXISTING Mtn g �E NG —PUMP STATION g wd S f WJ 2 EXISTING�? N j� SPRAY FIELD PUMPS gg. as R0 PROPOSED SCREENED SUCTION LINES EXISTING / PROPOSED ¢Woo W FO FACE MAIN -T'ti PUMP STATION BUILDING z U EXISTNG 70 SPRAY FIELDS \ \ ��� Wj 2 NEW TRANSFER S on SPRAY FIR DO \\}, 4 PUMPS TO SPRAY FIELDS Ow a OR EQUALIZATION LAGOONS S �Ls S X. .PROPOSED FORCE MAIN. TO CONNECT T. Y fo EXISIING c NaPRn. zoo? •- =�.-e., r5^i� vTM vv .`rr.,. a,,� `.�.,. FORCE MAIN DFW •t"n.6,••••d,� cl.co DFW OIL raicAS INDICAEED HYDRAULIC PROFILE Is iEu 9F AE in / Sin St m _ ry siwomuc ro>r. rrP 9 T of s Eacx aEraroR I _ ._-- PLAN im / EM9m DEP1H LAunarE nD nP FEonnrvc fEw.tox -� ! .x s v< <D 3DaL M1 . SiL E L iN S2. .PPE a-� , iFFnER ,. SM E . . Cn 'E M Evo SiPFF GnUGE ON E Ell OP =� 3 5 SEGitO R �'i iT,R B i. OFW. e �� Ti � n I I��IIrIJ��I �rlT� T;��n, - ER PRotEcio ow� _ __ _ _f. c nu uarERut. s wnL stawLsss mEEL L pi M MOORING SUPPORT DETAIL DxEtER ceR—�IJ>Nrl,l(mliF 1-111'-.—I- tI 711 t- IIII ELEVATION FLOATING 'AERATOR MOORING DETAIL EEL-� n ax Exaosurrc sfx� H� oar, 4 U Cx4NNEl LE � wrtn SWNLEBS 5l LLEL OR —jT F DE(4CNMENi E Rr p N o Rt....c rnrc: —P CKILL GRIP -.- - �/�" SS u09Po G A&E tE FRW BM'ER SUPPLv GRME PaDa� rvGR�E�Z BLOCH. MPROx. -- REOU1REo BY ENGINEER. NEGYIONSNUR.fSx TYPICAL AERATOR MOORING POST DETAIL TYPICAL JUNCTION BOX .FIELD SUPPORT b � ¢ FUNc[�nEQrzx F-� `Y� Y' d S Z g MANHOLE RINGEE& COVER DETAIL ,Q.� N.LS. W I SN WU � z a' o• a' Ecaw1IN111 11, ci z OD[CaN. 11.4 0 w' wi M ,' a alloave in�roNei of o a __ GROliT p�,j��b (l1 J fLp S19rvE BASE � p` p 5' PRECAST MANHOLE DETAIL ET a72 WIPE nnFsx-. a , 2.'toP APRiI 200/ aE ro 6+ GRADENNERE REOU RED sx,rv. R DFt wx GFN 10 16 — -- =-- r NN EE a IIVII IIIII I �ilil IIIIILJIIIII�'('ll IIIIIII IiIIII��—mnR� —� II II - IIIII9� mi711�-? I III r �- P—DE alvE srENs, m. - IIII r, e z o" —1ED c—E1DEE Do oM a aA' Tii �`'� 1111 � `. a�a• Illlllk IIIIIk-11I1 a• ma aEuc vnEVE -- III-�« 11 IIIII� a-qa Ew EQUALIZATION BASIN DRAIN OUTLET - HDPE 4NER I E ® 0 C. vEN ERGUSSION DRIVEN nD E Co N BOtton: mbD SiEE 5 P �i 4DT IJ JJ � - >{ SiGEE •H1 P _ r .e s{ x z conr nu0us I srEeE sra as HDPE LINER @ BASIN OUTLET HDPE SOLVENT WELD JOINT s• Pvc PEREORnieD \ '-8av wnstifo sroNE —N PPE w/FlIrER Y Eneruc covEe � --- �. _IunD�sruaeED CAMPnClED - --- IsuecwvD PERIMETER DRAIN rEou1—N — MR. HDPE LINER 0 TOP OF BERM —E: V—,'-D 6' CHAIN LINK FENCE AND DOUBLE. SWING GATE DETAIL N T.S I Ilnilii—ilr — EQUALIZATION BASIN INLET srxe. ale,.=r_o. 31 DFw rn�,� acr SAS INDIC 16 PROPOSE, EOR, 1300-5 PIPE RESIRAINT OR .__\ ��PNE APPROVED EONAE PROPO5EP FORA 1306—C \ r- PIPE RESTRAINT OR 6 0 \ (G� / PRE —APPROVED EQUAL ED H .... CAS o _ HQPE PIPE — - CE7 (r� _... � DF) OR D I. PIPE A DfE PIPE c �T 6 HDPE(FU TRAM TION FITTING C HOPE FDSED JO NT g D SPLIT NJ GLAND (DD E NJ DDE ER CASKET HDPE/PVC TRANSITION PRE-ASSEMBIr 1DPE PIPE r r SLEEVE INSERT ASSEMBLY 61 r�DPE/ona rwiNSlnoN tiTTiNc G TIE RODS OPE EUSED JOINT N SELL RESTRAINT RING N_T.S C SOFT MJ GLAND MJ RUBBER GA5KEf SST SLEEVE INSERT MJ TAPPLD CAP A5,4EMBl D P MJ TRANSITION VAEMBLY N.Ts, ANCHORING CABLE WINCH PVC FtOAIS STAINI FSS STEEL CLIMBERS HOOK CONCRETE WEIGHT 4"F 4"x 1/4" x S' LONG / / S.S. ANGLE (1YP.} _ - - ANCHORINGf 1JI CABLE PROPOSED FLOATING DECANTER PLAN VIEW SCALE 1/4' I'-0" ANCHORING CABLE, TYP1 \ r(CABLE \ 1 WINCH (FOAM FILLED LEGATE - EQUALILATION LAGOON HIGH WATER LEVEL: g11G' S.S.INTAKE_ SCREEN ail :5/16" S.S. CABLE NYLON BAND--lD X VND 72" H P D C PIPEGONC DIP -- IiDPE L.INEt? 'IIBOTTOM FIEV: 658.0 #468" HDPE/PVC TRANSITION EXIST. GROUND PROPOSED FLOATING DECANTER ELEVATION ASSEMBLY PERIMETER oRAm SCALE: 4 /4"=T'-0' onrE, APRIL 2007 HE, DEN o, OIL y�tAS INDICATED �i,.n rvP 12 6 A UNDISTURBED EARTH N L \• I I a UNDISTURBED EARTH ELEVATION PLAN NOTE THRUST BLOCK SHA L BE CONSTRUCTED OF 2000 P.S.I. CONCRETE TABLE 11A 11DIMENSIONS (IN FEET) PIPF S17F (N11M NIIA. IN INCHFE) 2 4 90 1v 19 6 8 10 78 s8 47 12 16 18 20 74 / 8> 94 11.2 45 10 4 22 1/2" D& 10 -.. 71 1/4' 08 1 tU .. __— 71 28 1. 15 2.0 25 ____. j _11 1 1.5 18 5 43. 55 62 69 83 31 40 45 49 5.7 _— --- -- __- __--_ 27 2.2 72 3f 4.4.. TRENCH NOT IN ROAD 1 TRENCH IN ROAD IYPE I-2 BTNMINOUS CONCRETE SURFACE COURSE y WHERE REQUIRED TO MATCH EXISTING 12" FINISHED GRADE '1 IIIIIIII-IIIIIIII IIIIIIII'= f' �/� "CPq? A k Fr o � OR DOUBLE PIPE IIIIIII / J '` SPo `S' P�' "( SECTIONS MAINTAIN '� �/ IIIIIII 111 _ BET MIN. SEPARATION IIIIIII /�/ III 10" AGGR GATE BASE BETWEEN 0.0. OF PIPE (TYP.) COURSE OMPACTED TO 987 DENSITY IN Al I- ROADS SELECT BACKFILL COMPACTED T0. 98% DENSITY PLACED IN ,'r Y j`% SELECT COMPACTED 6" LIFTS UNDER �' GRANULAR BACkFlt1 CPACTED TO ROADS AND O 0% Y. / - PLACED IN 6" LIFTS OMERE �f DENSITY ELSEWHERE DEPTH r= 14'. 1/3 PIPE O.D. GRANMAX. O.D. _ •� S 74': iJ2 PIPE O.D. GRANULAR BEDDING F ' MATERIAL DEPTH: •I <_ '14': 1/4 PIPE O.D. T --M4N > 14': 1/2 PIPE O.D. PIP THRUST BLOCK DETAIL FOR WATER MAIN BENDS oF_aa iz" MIN. E N.T.S. PIPE BEDDING, OPEN CUT AND PATCH N. LS. Size & Horizontal Bend (Degrees) Tee... Reducer Dead End Vertical Offset 45' Ben 5 6' 8ro Material 45 zzs 1T2h X 5--' Upper Lower 12 PVC Length R IU a ed (R) HIS23 11 6 9 77 106 66 21 H"x18"xB THICK — CONCRETE PAD 1q PVC Length R t d (IT) 47 20 9 5 16 55 89 56. 18 CAST IN PLACE JZ N18' 6" THICK C' _ 1 GGNC ENE PAD 8" PVC t Ingth R t nad (it) 40I 16 8 4 24 55 74 46 t'u CAST IN PLACE — PAC INNII ll in -: 1T- 6" Length R st o ned (ft) SO 12 6 3 32 N/A 56 35 71 _i �� - III�II1- � �IHIIIII Size & Horizontal Bend (Degrees) Tee Reducer Dead End Vertical Offset 45' Ben = Material -- — ' __ VAST IRON 90 45 22S 11.25 6" Brench X 6" Upper Lower T VALVE BOX 12" DIP Length Reetra ned (ft) 43 18 8 4 .5 42 58 35 1 15 2' SQUARE tU DIP Length Restrained HE) 36 '5 7 4 9 30 49 29 1 12 // (OPERATOR NUT 8 DIP Length Re t d NL) 30 12 6 3 13 17 41 24 10 IIIIIII IIIIIIII -__ _______- . ___. _-__.__ IIIIIII -- IIIIIII TAPPING MECHANICAL JOINT �6' DIP Length R t a ned (ft) 23 9 5 2 17 N/A 31 18 8 _ _ '-� GATE VALVE SLEEVE DESIGN PARAMETERS DEPTH OF BURY 3 FT __ SAFETY FACTOR 2:1 TRENCH TYPE 3, SEE. DETAIL _ NOTE: rc TEST PRESSURE 150 PSI - ALL GAIL VALVES SHALLSOIL TYPE CL, INORGANIC CLAYS OF LOW TO MEDIUM PLASTICITY, GRAVELLY CLAYS, SANDY CLAYS BE PLACED ON AN 80 ON 6 CUBIC FEE[ _ LEAN CLAYS. HACKFILLED USING NATIVE SOILS. BAG OF SACRETE. CONCRETE MIN.1 NOTE: 1.111E CONTRACTOR SHALL INSTALL RESTRAINED JOINT THRUST PROTECTION Al AL,. BENDS, TEES, REDUCERS, VERTICAL OFFSETS. THE ABOVE LENGTHS ARE MINIMUM LENGTHS REQUIRED FOR THE DESIGN PARAMETERS SHOWN ABOVE, THESE RESTRAINING CONDITIONS GATE VALVE ASSEMBLY ARE COMMON CONDITIONS ENCOUNTERED IN NORMAL PIPELINE CONVTRUCIISN, ANY OTHER CONDITIONS SHALL HE APPROVED BY RLC THE PROJECT ENGINEER. 2. WHEN USING MECHANICAL JOINT RESTRAINTS SUCH AS MEGA —LUGS FOR PVC S, DIP OR TR FLEX AND GRIFFIN SNAP—LOK, CONCRETE BLOCKING SHALL BE EXCLUDED FROM THE INSTALLATION. 1/2- CAST IRON VALVE BOX APPING /- VALVE TAPPING SLEEVE AND VALVE ASSEMBLY N:I 5 d c: 13 6 PROPOSED 6' LONG X 30" DIAMETER 6 STAINLESS STEEL CYLINDRICAL INTAKE SCREEN - - - - -INTAKE SCREEN W/ 1/8" SLOT OPENINGS. / F INSTALL SCREENS 40" FROM BOTTOM OF i n ..�_. HOLDING POND. SS PIPE CLAMP / AND FASTENERS _ _ E LEV: 1 iYP. OF 2� 4 - 71111CPTIIS PIPE4" BLIND FLANGES . OF 2 ------EOR FUTURE AIR HOLDING 4D �tJ SCOUR (TYP.. OF 2) S PONp BOTTOM G' PROPOSED CONCRETE SUPPORTS 4 #4 / S CLAMPS 8" DIP y O !i- 1 v t 1= li t�t. SUCTION W - 60' PIPES FROM _ HOLDING ' PROPOSED 45 LF 8 POND 6' DIP FLOOR DRAIN /-PIPE TO HOLDING POND OJ;e{T GRAVEL W/ 3'X5' NIL RAP DISSIPATOR _._ 12"4 X 6' LONG I PROPOSED 6" QIP. SONOtUBE FORMED i 45p BEND PROPOSED 8" PVC CONCRETE SUPPOR i TYP OF 4 8PR 36 EORCE MAIN -Cl! 16' _.._.._ -_..__ TO PROPOSED COLUMN \ OF 2) 1 INSUI AT- ABOVEGROUND EULA, l?ATION 1AG00NS p; CIA 1 I �tXPCSLD PIPING, TYP. INTAKE SCREEN SUPPORT DETAIL 1 � " INSUTATE ABOVE_ GROUND PRESSURE_ O 12 EXPOSED PIPING, EYE. 8" 1 ti REDUCER 12 qb. PRESSURE GATE _ .GATE / Q-- y BENDS REDUCER VALVE VALVE w 1 w I GATE !_I \ VALVE _ PROPOSED 6" PIC r�'y wi A CHECK t�iV xffi SDR 35 FORCE MAIN CHECK �--1-' VALVE 4 Z GONER J TO FWCHNC VALVE SPRAY FIELD FORCE MAIN GATE J��/jJ� ;_GATE s WITH 6" GATE VALVE VALVE VALVE .p PUMP Qi AND 8" WYE FLOOR PUMP p _ pRAIN 3'x4' MOTORI7ED S, FUTURE N�[ ITERL COLDER ( PUMP 16' .INTERLOCKED W/_j �. MOTOR MOTOR � EXHAUST FAN I. (. 2' SPRING OPENED MOTOR CLOSED ELECTRIC PUMP 24' EXHAUST FAN MOTORS Wj DAMPER AND SC�^ BIRD SCREEN N PROPOSED 6070 HOLLOW METAL PAINTED ( DOOR AND FRAME Z 8" CMU WALLS W/ KEYED LOCK u 77 m 5 5€90 a o tom---4'-16" 4'-10"a� 4 O� d p O w o o w wu a 6 a � � a 4° THICK CONCRETE PAD-! W/ WWF REINFORCEMENT APRII. ?GOT wx, DFW ODE SAS INDICATED PROPOSED PUMP BUILDING FLOOR PLAN 14 6 CONTINUOUS EXHAUST FAN SPRING OPENED — SCALE 1/4" V-0" MOLOR CLOSED BIG SCREEN INCLUDED 1x6 PT PAINTED T I it PAINT D SIDINC .FASCIA GARD INTE PAINTED D PLYWOOD SOFFIT ATTACHED TO GOT M OF )KERS PAINTED CMU WALL llWIDE XD' LONG!NO"U"A'F111T =� ELEVATION X 4' THIC, CONCRETE 1.1 LA11 AN ARE_ RAMP W/ 2' SLOPE SCALE '/,t- _ 1-0- CONTINUOUS REAR ELEVATION CONTINUOUS NlfjHl LLLVAHUN BIRD sceEeN'�� SCALE: 1/4' � 1'-0` T )F IRS ALL ,Cc ziy dE z, Z z O AL w a_ ARRIL 2007 DFW NGL cx AS INDICATED ITT 15 U 2X4 OUTLOOKERS 24" O.C. 0 GABLE -END / TYPICAL AT BOTH WOOD TRUSS — GABLE ENDS 2X4 OUlL00KLRS 2 �'\ r „� 24" O.C. PRE ENGINEEh'ED _ _,___,a..s-- \ TYPICAL AT BOTH _ B0 K TYP 04 WO00 TRUSS BEYOND �--$T-,( \CABLE ENDS N / 2X4 SUBFASCIA % \ PRE—ENGINEERED - f WOOD TRUSSES \W 24 O.C. TYP. ��'�T i/ C PAINTED 4i FASCIA C A \ C08 TPT NAILER BOARDGABLE-END., WOOD TRUSS "~ . TYP OF 2 2X4 SUBFASCIA PAINTED CABLE END TRUSS y //1X6 PTH r� FASCIA BOARD 8 2 ROOF FRAMING - ISOMETRIC VIEW y NO TO SCALE 'QE`O .�-_— ------------ n' 4^ TRUSS w1DTr+ --- .--.------- --_ TRUSS BRACING4^ PRE VAu WOOD TRUSS AS REQUIRED BY PRE-ENGINEERED 3 �u ® 24" O.G., TYR, R TRUSS MANUFACIURER 12 12 WOK 5��5 N - ROOF SHINGLES, TYPE `HC' HURRICANE ANCHORS ROOFING FELT, C1) EACH END OF EACH TRUSS PAINTED 97 5/B" PI_YW000 NGOP PLYWOOD CEILING 2X4 SUBFASCIA Z 8" LONG g O GALVANIZED ` F' METAL DRIP EDGE / ANCHOR Rot .1' J W AT EAVES AND 2X8 PT NAILER GABLE ENDS COOT ci O OTTOM CHORD 8" CMU g. t• PAINED 1X6 Pl - -"-_ - a5 z _ WALL FASCIA _ PAAOOD e% �� m 4 CEDAR IN CONCRETE FILLED BOARD ' a p - FULL HEIGHT OF WALL C PAIN 7 ED IDLING Al CORNERS AND DOOR JAMBS CELLS PAINTED - WOOD PLYWOOD SOFFIT TRIM w � 6" CONCRETE FLOOR SIAB < w 3-$4 BEHAR COOT. #4 DOWEL IN FILLED CELLS @ 48" O.C. S WIDE VENT w W/ G"XG' 10/1O WELDED WIFE MESH SCREENING TYPICAL CVE, 6 MIL VAPOR BARRIER AND ALL CORNERS AND JAMBS TO 24" ABOVE 8' BOND BEAM a FINISHED FLOOR - HOOK 8 INTO FOOTING CONT. GROUT SOLID �¢ O ON 4' GRANULAR FILL PAINTED _ 2 fj3 d OVER COMPACTED SUBGRADE WOOD W/ 2-#4 REPAY CONTINUOUS if TRIM APRIL'200/ III -III II II-IIk ill= EAVE DETAIL ow -III III�R F III III II III III III" -III III 111=1lI IIL III III7II III III I III-��� ���-� NOT TO SCALE III 11 I� !N IIHII iIk III III II' II_ III III III_ II! III III -III IIL I III III=�III III II�i COMPACTED JI-1 SUBGRADE =LI III III _ BUILDING SECTION 111=III=11 �`" AS INDICATED SCALE 1/A' _ 1' 0" n 16 —J LLl < 0 < O cr IX CIL C) > 0 d 32 III o < C-r ,T ck: Ij < APRII 2007 w VFW DFW AS INDICKI ED SF-1 - GRAVEL A w 30 HP, 2AOV 3PH, FVNR COME. STARTER W/ IN FUSED DISC., CPT, PL. kTM, HOA \ YZ _--' it O� SWITCH IN NEMA 4X ENCLOSURE t CONC i SJ8" STRINLES5 STEEL UNISTRVT h IL ` ��, i t 2' GALVANIZED POST ASPHALT PARKING G ASPHALT DRIVE l 0 G E 12`xi 2"x6" N-4X JB ` �i tN i �l EXISTING t 1 GRASS GRADE BUILDING ll v 30D0 PSI h h I \ BARN CONCRETE o L---J 'Q ,t AJyY,ppE1S( ASPHALT @M8 n cap a. TO NEXT AERATOR 1 ASPHALT liGRAVEL« DRIVE II EOP-"' z y � v .R NEMA ENCLOSURE DETAIL \ 30 HP, ADDS' 3PH - 6"x6%S, MOORING ito COMBINATION DISC/STARTER- TREES p , F.'. t POST W/ KELtAJM GRIP IN N-4X ENCLOSURE (SEE DETAIL) CT" AL OY 2) , qb MDP-2,A,6 PROPOSED ELECTRICAL _ PANEL RACK tf lilt MDP-t,3,5 u y >y � �i WJ -, I Vca �m +£ o J MOORING _ __-___.""_..-._ CABLE I a a 3 'i= L POWER CABLE FLOATING 1 _ FRSTINC FLOW N &v SUPPORT CABLE DECANTER I /'�� V EQUALIZATION 'TANK � G0v�or2 ORALL v -"-- PR0P0SoO5.26 GALLON -- --- - ----- _ 2 it _------ ems- ---- "' -'--- - -- ^.,� _- `,. d ' ------------- FLOATING AERATOR i , /� - EXISTING 30K o _ \A,DOMESTIC TREATMENT I� -WI FIXED MOORING (. , px ___ 'I , STAND (TYP. OF 4) _ _ --_-- - X � _ � 1\ �. t PLANT ,®� X --_�__- aye-}-`v-.s 'a".�..XV �I y(. � g "' l"-a _. o /.�y� N& �� EXISTING L T TREATMENT INDUSTRIAL TREATMENT PLANT � ¢ �� Z 6 6'x8' MOORING o V.✓ - POST FOR DECANTER rx ••UUU""" 0 I - g g a }} S` PO TI- MOORING (TYPICAL (}F 4) � POST FOR DECANTER o 0 0 OF �` <. FXI, T SPRAY gw�� oo W I- B (TYPICAL h) % _ PUMP HOUSE 4 PROPOSED SPRAY ELI PUMP HOUSE t Y 1 i3i^ TE � , EXISTING TREATED WATER ^++ z1�\ .00 — - — , - �� � � a�. � � � , ��vr , HOLDING loY POND XA'G1 r APRIL 2007 ,A " DEW �� i ELECTRICAL SITE PLAN r. m «Eo -. BGL SCALE. t" -30" �� I A5 INDICATED cr na.E- or fi GRAVEL 3 SOOMCM, 1-2f0 CRIJ IN 3"C h ENCASE IN CONCRETE IN THIS AREA ONLY PROPOSED SPRAY •.r• FIELD AND EFANSFER PUMP BUILDING EXISTING 400A 240V, 3 POLE "Q t 1•/` OISCONNEVI TO NE REPLACED �].` PROVIDE NEW tO0 AMP, 240V, WITH 700 AOAP, 240V, 3 POLE, �?�'� 3PH 24 CKT PAN EI. TO r PANEL EXISi7NG 75 Hp '`�,� SUPPLY POWER TO ALL MOTOR STARTERS AND DISCONNECTS '' ��' EXISTING LOADS IN .� E� 70 BE REMOVED FROM SERVICE. /� /� �`� PUMi BUILDING. o CONCRETE S ALE SLUDGE �s� o xisnN P v' a ,4�JB SPIT �, , -FIELD PUMP O �a i S BUIL6INO '�- GO yry Wx b I He FEED � GIN' `T � A �. �" CONTACT A�� i Ald MFI U- E� EXISTING OVERHEAD BRICK C VA _ TRANSFORMERS TO BE - EXISTING OVERHEAD POWER REPLACED BY PROGRESS VAULT --�` SCR`EENING Y \ LINES TO BE REMOVEP. Cj ENERGY COORDINATE C S 1\, r,\ AFTER COMPLETION OF PROJECT _ SERVICE AND METERING _ ~' \\ - _ z RESUIR[MENTS. o �- > ' SEE GENERATOR FAD DETAIL _ _ - � � ----- % SAND NOTES ON SHEET E .' a EXISTING TREATED �o o> UP WAFER HOLDING POND`a U _-- --- 4 `ENCASE. CONDUITS UNDER a O "'� a APRtI 200T ROAD IN CONCRETE _ - ,cur 9F� �1 bLl ' C ,� a DEW D t .� p - u hS INDICATED -' O E-2 TO AERATORS -s i ; 6 ELECTRICAL LEGEND ------ IV HOME RUN CIRCUIT Ssi SOLID STATE STARTER ' 15A, 120V, DUPLEX GROUND FAULT RECEPTACLE S.. 20A, 120V, SINGLE POLE SWITCH POWER PANEL TF2 TRANSFORMER 45. KVA 480-120/24OV,1 PH o JUNCTION BOX - uN-I UNIT HEATER ®, c DISCONNECT- SIZE AND RATING AS INDICATED T T -Al �o �a SIiW ELECTRIC UNIT SR 4 qD HEATER, CEILING MOUNTED W/ BUT T'STEST S .... GFI 5KW P2-1,3 UH-1 W �z� 8 FIT, TIGHT, LOTS LAMPS, Nm_ T----._..__ _ VAPCR TIGHT FLOURESCENi � yam i P? "� COLUMBIA #LUN8-259-EI38-T20 Q'0 5�-- f f �\ (TYPICAL. OF 2) oZf W T I I �m MANUAL M070R STAR LNG SWI CH � � � icy h= , 8 FT FLOURESCENT FIXTURE, VAPOR TIGHT, 120 VOLTS —�I to, i y wok 3'x4' MOTORIZED ����� FUTUREI HID WALL PACK -MOUNT OVER DOOR INTAKE LOUVERINT3' N NEW PUMP P2-z - �c> ax CT)THERMOSTAT - NEMA 4 ENCLOSURE 59F-100'F FX14AUST FA w/_., 75 nP zs RP ry SPRING ST FAN _ 2 SPRING OPENED -I tttfff��� MOTOR CLOSED CFI MULTiFAN \ CORROSION R T 553 FFu ONE CIO ESIS [AN - 24" EXHAUST FAN, 800CFM, 120 VOLTS W/ DAMPER AND BIRD SCREEN .p � g,_.•' P2 DP-2,4,6 \_.3#4, 1#4N, 1#6 GRD IN 1 1/2" C. TO EXISTING PUMP HOUSE cFi TFz S52 MOUNT ON CONCRETE PAD AT 12" ABOVE FINISHED GRADE g L3 ' {Il 45KVA, 480V.-120/24OV, 3PH g (,L \ TRANSFORMER PAD MOUNTED ��w o Z P 4 \ .ay 100 WAIT METAL HALIDE WALL PACK 0 ATLAS 3WLM-100MHPIK W/ PE OR EQUAL 4aN Q � o ED ow 0 a N PROPOSED PUMP BUILDING zooz ciAPRa W FLOOR PLAN DGL sca AS INDICATED «, E-3 CONTINUED FROM ABOVE rCOORDINATE SERVICE ENTRANCE Is `RRIC jf AND METERING WITH POWER CO. T A / CM, 2 SLIS(3-3SOMCM, ? SETS(3-350M i 2SOMCMN 1-1/0 GRD----------1 Ir1-250MCM IN 3E) /" IN 3 1/2"C) EXISTING GUTTER BOxC MSO ATS MDP Pt DSi DS2 CT 600A TO 225A 200A 200A CAB 480V, 3 PH 6ODA GOOA MOB 34PH. 34PH,. 4W, SJN 480V. 3 PH 277/48OV, 120/208V 4 POLE # pOLE 3 PH 4W, 75KVA 3 PH, 4W DISC FUSE D aSC� NOTES: N-3R N-3R 48OV. 30 CKT CB IN PANEL. 120/208V. N-3R r 42KIAt 3 PH, PANEL X,,,i--.�f i. REPLACE EXISTING 200 AMP FUSES IN DS1 AND N-3A EXIST!N0 LOADS DS2 WIPH NEW 100 AMP FUSES AND REDUCERS. NOTE 1 d o U/G POWER BY 2 REPLACE EXISTING 400 AMP DISCONNECT IN EXISTING a (2 SETS)' PUMP HOUSE. DISCONNECT CIRCUITS ANO CONDUS POWER CO. I 3- 2, i 2N, i B GRD s} '� GROUND PER NEC TO TWO 75HP PUMP MOTORS. INSTALL NEW ING AMP, 2 I IN 1 1 f2" C LOSV, DAN, PANEL. 'P3" TO POWER OTHER EXISTING F yy-T s LOADS INSIDE OLD PUMP HOUSE. PROVIDE LOAD CENTER COLD AND CIRCUIT BREAKERS AS NEEDED TO POWER (3)EXISTING, i 5A, 12RV DUPLEX GFI ( ) PIPER. � ''-RECEPTACLE BELOW AERATORS, LIGHTS RECEPTACLES, ETC. PANEL Pi. 3. BOND NEUTRAL TO GROUND INSIDE GENERATOR. .i 150 KIN CONTINUE GENERATOR SELOW /1,4. PROVIDE SQD ALTISTAkf SOFT STARTER (OR FQUAL) y WITH MAIN DISCONNECT CPT TOR, SWITCH RUN LIGHT ET M "DP" MDP 12 .b 4 11 . ..,., d C: "3 „P11 m oz a=� of uT - a 'Cz$N W ���•zy 3� x n „P3" ,,P2„ &�4 0 A, q W g goo r U tt W, ~ F U �-��1 Q W W �¢�3 3 l C fe APRIL 2007 n DEW axEo DEW BOL AS INDICATED ELECTRICAL PANELS. a PANEL TYPE SO D PROVIDE GROUND BAR VOLTS 277/480V 400 AMP MLO PHASE 3 PHASE. 4 WIRE N£MA 3R MIA LOA➢ DESCRIPTION WIRE SIZE DKR S1ZE CKT NO. Lt L2 L3 CKT N0. BKR SIZ£ WIRE SIZE LOAp DESCRIPTION - KYA 26.8 28.6 2&,6 i 5.0 i5-O 15.0 J5 HP PUMP i %5 HP PVMP 1 1 i 150 / 3 2 Sp/. 3 , '15 HP PUMP 2 26.6 2&8 26,6 1 J5 HP PUMP 2 >5 kiP PUMP i i 3 6 1 1S HP PUMP 2 45KVA TE2 >0 f 7 8 60 � SPACE 45KVA ix2 9 l0 SPAGE 45KVA TP2 i2 SPACE SPACE 13 14 40� 3 SPACE SPACE 15 ,8. SPACE ,9 25 PANEL TYPE Sq D ROOD OR EQUAL VOLTS i20/240V 200 A MCB NEMA 3R PHASE 3 PHASE, 4 WIRE KVA LOAD DESCRIPTION WIRE SIZE BKR SIZE CKT N0. Lt L2 L3 CKT NO. 8KR SIZE WIRE SIZE LOAD DESCRIPTION KVA 0.8 02 0 6 15 RECEPTACLE 12 15 , 2 100 3 2 EXISTING GUTTER BOX DSf 85 58 8.5 6.0 6.0 6.0 LIGHT ON RACK 12 20 3 2 E%ISTIryG GUTTER 80X D51 SPARE _ _ ZO 5 6 2 EHiSTING GUITF_R 80% DSt SPARE 20 7 8 100 /� 2 2 EXISTING GUTTER 80% 082 BATTERY CHARGER 12 20 9 10 Z EXISTING GUTTER ed% CST - GENERATOR BLOCK HEATER 12 26 11 12 2 EXISTING GRATER 80% DS2 13 i4 15 16 r> i8 PANEL TYPE SOD PROVIDE GROUND BAR VOLTS 120/240V 125A MCB NEMA t PHASE 3 PHASE, 3 WIRE KVA 2S LOAD DESCRIPTION F1E:CTRIC UNIT HEATER WIRE SIZE 10 [2P CKT NO. i2 Li LZ � CKT NO. BKR SIZE 20 20 WIRE SIZE 12 LOAD DESCRIPTION LIGHTS KVA .65ELECTRIC 3673 9.5SPARE84 95SPARE 9.5 UNIT HEATER 1U 3 4 12 RECEPTACLES EXHAUST EANLOWER 12 5 6B04 PANEL P3 PANEi. P3 9 10 n PANEL P3 SPARE 20 12 20 SPARE _ii 13 14 15 16 iT iH i9 20 600A, MEO, 277/480ll, 3PH, 4W N-3R PANEL (35KAIC) 80/3P 8d/3P BASIN �1 BASIN #1 AERATOR #1 .AERATOR #2 125/3P 40d/3P "TE1" "DP" 100/3P 10d/3P SPACE SPACE PANEL TYPE SOD TYPE N006 PROVIDE GROUND BAR VOLTS 120/240VOLTS t00A MU) PHASE 3 PHASE NEMA i KVA LOAD DESCRIPTION WIRE SIZE BKR 52E CKT NO. Lt L2 L3 CKT No. BKR SIZE WIRE SIZE LOAD DESCRIPTION KVA 2.25 2.25 2.25 2.25 225 2.25 D.90 0.85 085 5HP AERATORyi i 30 � 3 2 30 � i 1 SNP AERATOR #2 2.25 2.25 2.25 D.>5 O.15 SHR AERATOR �'i i 3 4 1 5HP AERATOR �Z 5HP AERATOR Al i 5 6 1 5HP AEItAIOR Z2 5HP AERATOR �3 ,2 3 J 8 5HP AERATOR �3 12 t0 1Q, f 2 12 HEATER .5HP AERATOR Z3 ,2 ,i 12 92 HEATER SPARE 13 M14 20 20 SPARE LIGHTS 12 15 16 SPARE IRRIGATIONPANEL 12. t720 SPARE RRIGATION PANEC 12 19 20SPARESPARE 2 12 r 21 22 BPAREO.SO EXHAUST i"AN ,2 23 24 30�. 2 SPARE 25 28 SPARE 2J 28 j4FT VAPOR TIGHT LIGHT L� `� CROVIDEA IUSWITCH H0-Z12G L -'---' -----t2'-0- ---- PROVIDE WP SWITCH ON RACK 18' MIN. SHINGLE SHED ROOF .STRUCTURE r 6' WIDE X LENGTH REQUIRED g !./"' ` ANGiOR BOLT DETAIL FI FCTRICAL PANELS, TYP. �3 6 MIN. ANCHOR BOLTS M`� - - 1 - N % SEE INSET ��'- "- ,F/✓g TYP. Of 4 '%T _. __ _. _ - _ _ _ _ _ __ - _ i -� 12„ - i.-. PiNO (y 3" GALVANIZED POSF. 7__ __ _ - _____- MSO ATS MDP Y IX _1 6" MIN, USE 3f8u5" GALVANIZED F, PLAN VIEW BD' 84" BOLT TO BOLT CROSS SUPPORTS TO POST OR WELD 2 (,'Al VANIZ Ell C CHANNEL GENERATOR I6"X6", '10 GAUGE a WY4lA � c�%`/T. r.; s .� <-. w ,r_•.,;' W R Tj ABOC .,. IN FIEI-D 4 O MAX.— WIRE I EQUIPMENT RACK TO BE .�1 � 1 SIZED FOR CQUIPMEN � T li IC$ 6 MIL VISOUEEN � � MIN -,� 'x— —� F I I 6 gg4 RE -BAR) C ELECTRICAL CONE 32 O.C. P' 3000 PSI CONCRETE G }� _ W/.SEAL OFFS 3" GALVANIZED r„ a IPFRIMETER IN>ULATION 2_ q RE -BAR CONT. BY ELECTRICAL i'POST (6'-0' WIDE BY z9� 1" POLYSTRENE -" 72' # " " ' <. LENGTH OF RACK) ,rye 1R 6" MIN. COMPACTED[ CONTRACTOR 36" j ,_� STONE BASE ( IF REO.) EMERGENCY GENERATOR PAD DETAIL N.T.S. FILL B"x24 HOLE a __I CONCRETE Z ff CONCRETE PAD 58EWORK SHED ROOF -- ASPHALT SHINGLES, 5/8" PLYWOOD, M i. CLEAR AND GRUB GETATION AND OTHER ORGANIC MATTER IN IN AREA FOR 15 FIELD VFR H` ALt EXISTING CONDITIONS, FLEVATIONS, AND DIMENSIONS. �2X4 WOOD EC TRUSSES SITE WORK STRIP TOPSOIL FOR ENTIRE DEPTH ADD STOCK PILE FOR REPORT FINDINGS AND ANY DLSCREPENCICS TO THE ENGINEER FOR - �^ BOLT SECURELY TO GALS POSTS. RESPREADING AT COMPIEDON. EVALUATION PRIOR TO .BEGINNING WORK 2_ THE CONTRACTOR SHALL EMPLOY A TESTING LABORATORY TO CONFIRM AND 16, ALL NEW MATERIALS SHALL BE INSTALLED IN STRICT ACCORDANCE WITH TO CERTIFY THE SOIL AND CONCRETEREQUIREMENTS AS INDICATED ON THE THE MANUFACTURER'S RECOMMENDATIONS OR INSTRUCTIONS, AND STANDARD DRAWING AND IN THE PROGECT SPECIFICATIONS. INDUSTRY PRACTICES. 3, FILLS AND RACKFILLS SHALL BE AS FOLLOWS: 1/. CONTRACIOR SHALL ERECT AND SAINTAIN ALL SIGNS, BARRICADES, AND 4FT VAPOR TIGHT LIGHT TOP 12 INCHES = 100 PERCENT PER ASTM EASE. OTHER WARNING DEVISES REQUIRED TO BALLY PERFORM THE WORK, COLUMBIA LUN4-248HO--ZI20 B. ALL OTHERS - 95 PERCENT PER ASTM D698. PROVIDE WP SWITCH ON RACK 18 VERIFY' CONCRETE PAD SIZEWRH THE GENERATOR SET. SUPPLIER PRIOR TO EsW 4. HILL MATERIALS SHALL BE SELECT FREE OF ANY ORGANIC MATTER, DEBRIS, f.OMMFNCPC WORK. DIMENSIONS SHOWN HERE ARE ONLY APPROXIMATE O HARD IUMP:i, AND RACK PARTIClE5 tARGEF THAN 2 INCHES: MAXIMUM DRY 84� p_w'J O DENSITY AT OPTIMUM MOISTURE CONTENT SHALL BE 100 POUNDS PER CUBIC i9 STRIPS FXAC,I LOCATION OF PAD WITH OWNER PRIOR TO STARTING. - FOOT AS DETERMINED. BY ASTM 0698. PLASTICITY INDEX(P.I.) SHALL NOT `X EXCEED 15, 20 SCRIP( SPACING AND LOCATION OF ANCHOR BOLTS WITH THE GENERATOR t$� SUPPLIER ADD APPROVED SHOP DRAWINGS 5. SOIL TENPINS PRESSURE USED IN FOUNDATION DESIGN IS 300E POP. HAVE SOILS ENGINEER CONFIRM AND CERTIFY BEARING CONDITIONS, 21. STEEL PLATES AND SHIMS SHALL BE A-36 HOT -DIP GALVANIZED, J 4 9. ELEVATIONS SHALL BE THE EDGE OF EXTERIOR CONCRETE PAD. 22. PROVIDE ALL OF THE NECESSARY EARTH MOVING TO PREPARE SITE FOR GENERATOR HAS. ]. ALL DISTURBED LAWN AREAS SHALL BE SEEDE AND GRASSED, A. ALL. CONCRETE WORK SMALL COMPLY WITH ACI 318. TE1 9, CAST -IN -PLACE CONCRETE SHALL BE 400 PSI, AIR ENTRAINED. - 10, REINFORCED STEEL SHALL BE AS FOLLOWS- A REINFORCING RARE. DEFORMED BARS HAVING A MINIMUM YIELD L ,A, EW - ^8 3 STRENGTH OF 60 PSI (ASTM ARTS, GRADE 60). 11. CONCRETE COVER FOR REINFORCING SHALL BE AS FOLI-0W5_ A UNIFORMED CONCRETE IN CONTACT WITH EARTH 3 INCHES. 12, CURE CONCRETE FOR A MINIMUM OF SEVEN (7) DAYS WITH LIQUID NOTE: CURING COMPOUND CONFORMING TO ASTM C-309. ALLOW (14) FOURTEEN 'TIME CONTRACTOR SHALL VERIfY CONTROL DAYS CURING PRIOR TO SITTING GENERATOR: - PANEL SIZE BEFORE CONSTRUCTION OF 13. GROUT SHALL BE PRE MIXED, NON-METALLJO GROUT HAVING A MINIMUM GOMPRFRVAE STRENGTH OF 7000 PSI AT 28 DAYS. RAINSHIELD RA I NSHIELD SIZE MAY NEED TO BE LARGER DEPENDING ON SIZE OF CONTROL PANELS. 14. THE CONTRACTOR SHALL PERFORM A IHOROUGH FIELD INSPECTION OF THE EXISTING CONDITIONS PRIOR TO BIDDING THE WORK. THE CONTRACTOR - SHALL NOTE AND INCLUDE IN UIS BID ANY EXTRA WORK ITEMS NEEDED TO : f2AINFI00D DETAIL COMPLETE THE PROJECI. - N.TB. F- NO OU " APRIL 2001 AN INDICATED E-6 6 OPERATIONS & MAINTENANCE GU?DW prepared for LUCKS, INCORPORATED Seagrove, North Carolina a OPERATIONS & MAINTENANCE GUIDE prepared for LUCKS, INCORPORATED Seagrove, North Carolina prepared by HYDRO MANAGEMENT SERVICES, INC. Winston --Salem, North Carolina February, 1985 TABLE OF CONTENTS SECTION TITLE PAGE I. INTRODUCTION ..................... II. OVERVIEW OF BIOLOGICAL WASTEWATER TREATMENT...............................II-1 RECAP -BASIC CONCEPT ...........................II-3 SLUDGEMOVEMENT...............................II-4 RECAP -SLUDGE .................. OTHERTREATMENT STEPS .........................II-7 III. DESCRIPTION OF THE LUCKS, INC. WASTEWATER TREATMENT SYSTEM .......................III-1 PROCESS WASTEWATER TREATMENT SCHEME .......... III-1 SANITARY WASTEWATER TREATMENT SCHEME........ III-17 RINSE/WASH WASTEWATER TREATMENT SCHEME...... III-19 SPRAY IRRIGATION SYSTEM .....................III-20 IV. CONTROLLING THE WASTEWATER TREATMENT PROCESSES ............ PHCONTROL....................................IV-2 CONTROLLING THE DISSOLVED AIRFLOATATION (DAF) UNIT.....................IV-4 CONTROLLING THE BIOLOGICAL TREATMENTPROCESS............................IV-1b MANAGEMENT OF SPRAY IRRIGATION SYSTEM........ IV-31 OPERATING CONTROL STRATEGIES AND TECHNIQUES ....................... ..... ...IV-35 .rt a TABLE OF CONTENTS continued... aZ,CTION MILS A(' V. MONITORING THE BIOLOGICAL TREATMENT PROCESS .............. LABORATORYANALYSES .............. .,.,...........V-1 FIELD MEASUREMENTS ............. VISUAL OBSERVATIONS ............ ROUTINE MAINTENANCE. ............ APPENDIX A APPENDIX B APPENDIX C APPENDICES PROCEDURES FOR: Zane Settling Velocity Sludge,Volume Index Oxygen Uptake Jar Test PREPARATION OF CHLORINE SOLUTIONS PROCEDURE FOR DETERMINING FLOW OVER A RECTANGULAR WEIR METRIC SYSTEM REFERENCE AND CONVERSION CHART EXAMPLE DATA SHEETS LIST OF TABLES TABLE U-, TITLE PAGE III-! Component Dimensions And Capacities ..................... woos .... ...III-u IV-1 Suitable Grasses For Spray Irrigation Sites....................IV-36 V-1 Recommended Schedule Of Laboratory Analyses .........................V„2 V-2 Recommended Field Measurements .................V-4 LIST OF FIGURES FIGURE TITLE EAU II-1 Schematic Diagram Of The Basic Wastewater Treatment Schemes For Each Of The Wastestreams,,,,,,,,,,,,,,,,,,,,,,,,II-5 III-1 Schematic Diagram Of The Basic Wastewater Treatment Schemes For Each Of The Wastestreams ....................,..III-2 III-2 Lucks, Inc. Process Flow Schematic Wastewater Treatment System....................111-3 III-3 Schematic Illustration Of The Dissolved Air Floatation Unit.................III-12 II1-4 Schematic Illustration Of Biological Wastewater Treatment P1ant....................III-15 III-5 Lucks, Inc. Spray Irrigation System..............111-21 IV-1 Biological Activity Vs pH Level....................IV-3 IV-2 Air Flow Control Panel.............................IV-7 IV-3 Retention Tank And Air Accessories ................ IV-10 IV-4 4-Week Summary Of Production Vs Wastewater ........ IV-18 IV-5 Sludge Wastage Worksheet,,,,,,,,,,,,,,,,,,,,,,,,,,IV-22 IV-6 Example Of Settleometer........................... IV-28 IV-7 Summary Of Alternative Operating Strategies ....... IV-38 -v- OPERATIONS & MAINTENANCE GUIDE prepared for LUCKS, INCORPORATED Seagrove, North Carolina prepared by HYDRO MANAGEMENT SERVICES, INC. Winston-Salem, North Carolina February, 1985 SECTION I INTRODUCTION E Lucks, Incorporated operates a vegetable and fruit processing cannery in Seagrove, North Carolina. The plant processes a variety of vegetables and fruits, including greens, white beans, lima beans, green beans and apples. The various vegetables and fruits are washed, cooked, processed, and packaged for distribution at the plant. The plant normally operates 24 hours per day Monday through Friday, but occasional Saturday production also occurs as needed. Cleanliness is extremely important at the Lucks, Inc. Cannery. Therefore, large amounts of water are used throughout all stages of production to clean and rinse the products and the plant. The wastewaters from the cannery are treated on -site for organic reduction prior to spray irrigation of the effluent on property adjacent to the plant. Lucks, Incorporated's on -site wastewater treatment system requires daily operator attention and regular process adjustments. These efforts assure that the cannery wastewater is well-treated and, consequently, that odors are minimized and that the effluent has no adverse environmental impact and is suitable for agricultural uses. Lucks, Incorporated requested that Hydro Management Services, Inc. prepare this operating manual to guide the Luck's wastewater treatment operators. The purpose of this operating manual is to provide the operators with the following: I-1 i. A basic description of the treatment processes at work in the Luck's, Inc. Wastewater Treatment System. 2. Guidelines for adjusting the Luck's, Inc. treatment system to optimize performance. 3. Routine analytical and maintenance procedures. This manual does not attempt to be a complete encyclopedia of wastewater treatment in general, nor even specifically for Lucks Incorporated. Such an attempt would be useless for two reasons: (1) such an encyclopedia would be so large and cumbersome that it would remain on a shelf and collect dust, and (2) wastewater treatment specifics at Lucks, Incorporated will change over time with modifications to the processing plant and to the treatment facilities. If a more complete discussion of wastewater treatment in general is desired, numerous books and journals can be obtained for this purpose. In order to accommodate changes which may occur at Lucks, after the initial printing of this manual, the manual is assembled in a 3-ring binder. In this manner, learning experiences of specific operators and future modifications to the system may be added to the initial document. In fact, the initial manual is being prepared at the same time as improvements to the treatment system are being completed. These improvements are included in the discussion of controlling the process, but subsequent revisions may be needed as the actual modifications are completed. I-2 a SECTION II OVERVIEW OF BIOLOGICAL WASTEWATER TREATMENT The basic concepts of biological wastewater treatment are similar to those of raising cattle. However, instead of raising cows, the purpose of the waste treatment plant is to grow bacteria. What is considered wastewater, (the toilet wastes and wash and rinse waters from the canning operation at Lucks), serves as food for bacteria. As bacteria "eat" this "food", they "breathe" or consume oxygen that is dissolved in the water. (This is analogus to fish that "breathe" oxygen which is dissolved in the water). Since the wastewater does not contain enough oxygen for all of the bacteria which are eating the "food", it is necessary to add oxygen to the wastewater. This is done at LUCKS, by mixing air into the wastewater with large "blowers", called aerators, located on the aerobic treatment plants. Adequate oxygen levels will insure that the bacteria are able to stablize (convert the wastewater to environmentally acceptable products) the wastewater. Inadequate oxygen levels will result in objectionable odors. The preceding paragraph illustrates why a wastewater treatment system is needed at LUCKS, Inc. The most important "Pollution" associated with the cannery wastewaters is the oxygen demand of bacteria as they feed on the wastewaters. The major purpose of the treatment system is to "feed" and supply sufficient oxygen to bacteria. Any "food" that is not eaten by bacteria in the treatment plant will subsequently be sprayed on the irrigation sites and "feed" bacteria there, resulting in possible odors and plugging or binding of the soil. Besides growing (primarily feeding and "aerating") bacteria, in the treatment plant, the bacteria must also be "harvested" so they do not escape, at least in too great numbers. "Harvesting" in a biological wastewater treatment plant is accomplished in the clarifier. The bacteria are "fed" and supplied oxygen (aerated) in the aeration basin. In addition to mixing air into the water, the aerators also keep the bacteria mixed (or suspended) in the water. The bacteria must be suspended in the water, so they can contact the food and oxygen. When the wastewater leaves the aeration basin, the bacteria are still suspended in it. The clarifier provides. a stilling pool where the well-fed bacteria settle to the bottom, because they are slightly heavier than the water. It is important that the bacteria separate from the water in the clarifier. Even though they have eaten most of the "food" in the wastewater, the bacteria are still living and "breathing" oxygen. Just as it is not desirable to send too much "food" to the spray sites, it is also undesirable to grow bacteria in the wastewater treatment plant and then send these bacteria to the II-2 spray irrigation sites, where they would continue to "breathe", resulting in odor problems and possible blinding of the spray sites. In addition, when bacteria die (stop "breathings% they become "food" for other bacteria. So if the bacteria are not separated from the water in the clarifier, another type of "food" is just sent to the spray areas. RECAP -BASIC CONCEPT Before proceeding, a review of what has been discussed above is presented. Biological wastewater treatment is used at LUCKS, Inc, It is called biological wastewater treatment, because bacteria (which are a biological life form) are the main part of the treatment process. The bacteria consider the cannery wastewater as food. As the bacteria "eat" this food, they "breathe" oxygen that is dissolved in the wastewater. The wastewater does not contain enough oxygen for all of the bacteria. Therefore, aerators, (electrically driven blowers) mix air into the wastewater in the aeration basins. The aerators also keep the bacteria suspended and in close contact with wastewater food and dissolved oxygen. When the bacteria have eaten all the "food" in the wastewater, they are separated from the water in the clarifier. The clarifier is basically a stilling pool where the heavier bacteria are allowed to settle to the bottom. Treated wastewater leaves the top of the clarifier and is discharged to the holding pond and is subsequently spray II-3 irrigated on adjacent property. Bacteria have "eaten" most of the "food" in the cannery wastewater in the aeration basin. Most of the bacteria have, in turn, been removed from the wastewater in the clarifier. The treatment process described above is illustrated in FIGURE II-1. E MOVEMENI Up to this point, the discussion has concerned (1) the "food" in the wastewater that has been "eaten" by bacteria, (2) the well-fed bacteria that have settled from the wastewater, and (3) the treated wastewater that has been spray irrigated. In principle, the primary goal has been achieved -- disposing of treated wastewater (wastewater from which the "food" has been removed) in an environmentally safe and acceptable manner. As noted in FIGURE II-1, the settled bacteria accumulate in the bottom of the clarifier. These bacteria are so numerous that they form a thick suspension called sludge. Sludge must be removed from the bottom of the clarifier, so too much of it does not accumulate in the clarifier and go to the spray irrigation system with the treated wastewater (or effluent). Sludge is removed from the clarifier bottom, which is sloped toward the center, to a hopper (or sump) located at the center and on the bottom of the clarifier. The sludge is then pumped from this sump to one of two places. Most sludge is pumped back to the aeration basin and is called return (or recycled) sludge. Some sludge must be removed from the aeration basin/clarifier system II-4 .j PRIVARY TP.EATmrflT GREASE COLLECTION TNFLUENT (TOQO) GREASE AND _ PROCESS SCREENING SOLIDS PH ADJUSTMENT WASIE61ATER RClsOVAL ,EFFL ZENT SECONDARY BIOLOGICAL TREATMENT CLARIFICATION • % AERATION STORAGE MIXTURE OF WASTEWATER, SPRAY IRRIGATION BACTERIA X OXYGEN (MIXED LIQUOR) RETURN INFLUENT (FOOD) SANITARY WASTEWATER AERATION , MIXTURE OF WASTEWATER, BACTERIA I OXYGEN (MIXED LIQUOR) SLUDGE SECONDARY SIDLOGICAL TREATMENT CLARIFICATION JNs EFFLUENT RETURN r—��~ SLUDGE PII CHLORINATION SLUDGE � SPRAY IRRIGATION STORAGE PROCESS WASTEWATER TREATMENT SCHEME GAMITARY WASTEWATER TREATMENT SCHEME INFLUENT (FOOD) RINSE/WASH PH RINSE./WARN WASTEWATER TREATMENT SCHEME WASIEWATER SCREENING ADJUSTMENT' STORAGE ]— SPRAY IRRIGATION FIGURE II-1. SCHEMATIC DIAGRAM OF THE BASIC WASTEWATER TREATMENT SCHEMES FOR EACH OF THE WASTESTREAMS and is pumped to a separate sludge holding pit -�= this is called waste sludge. Sludge is returned to the aeration basinsothe bacteria can "eat" more "food". It is important to keep enough bacteria in the aeration basin, so most of the "food" in the wastewater will be removed. When the bacteria eat the food, they grow. Unlike cattle, however, individual bacteria do not experience a tremendous physical growth in size. Instead, bacteria propagate their species by employing vast reproduction. Weight gain for the bacteria in the aeration basin is determined by the total weight of all the bacteria in the basin. There is an optimum (best) number of cattle that can be maintained per acre of pasture, in order to keep the cows healthy and growing properly. Similarly, there is an optimum number of bacteria (determined by their total weight) that can be maintained per gallon of aeration basin volume. Since the bacteria are always growing, the optimum number of them must be maintained by constantly removing excess bacteria from the treatment system via the waste sludge line. One of the most imp-oi�ta-nt__f-u -nc_tions of the LUCKS waw-ater_._t.r-e.atment operator is to waste the proper amount o_ f sudg_o_ (bacteria) from the system daily. -RECAP-�L,UDGE The biological wastewater treatment system essentially produces two products: II-6 1. Treated wastewater (effluent). 2. Excess bacteria (waste sludge). One of the operator's most important jobs is to move the bacteria (sludge) to the proper location -- the aeration basin or the waste sludge pit. The techniques described in Section IV will r. help the operator know what to do with the sludge. OTHERA M P The discussion above describes the basic operation of the biological wastewater treatment system. There are other steps before and after biological treatment that contribute to the proper operation of the LUCKS INCG T4JR*-E-D-biological system. A lot of grease and oils are generated during the canning operation. Grease, oils and solids are in the wastewater as it leaves the processing area. They are removed in the primary treatment system, which consists of a bar screen and a dissolved air flotation (DAF) device. (See FIGURE II-1.) The proper operation of the pretreatment system in removing grease and solids is necessary to provide an effective biological treatment system. If too much grease and solids get through the primary treatment system, mechanical problems and sick bacteria may develop in the biological system. Most of the bacteria in the treatment system are not the disease or sickness -causing types. Most of them are similar to bacteria with which we live everyday, including those which are normally found in our bodies. Sickness -causing bacteria are 1I-7 primarily .associated with fecal coliform bacteria. Fecal coliforms are not the main bacteria working in the biological treatment system, but they may still be present. Therefore, before the treated wastewater (especially the treated sanitary wastewater) is spray irrigated, chlorine is added to kill any bacteria that did not settle in the clarifier. - Another related part of the total treatment system is the ultimate disposal of the waste sludge. Remember the treatment system makes two products --- treated wastewater and waste sludge. The treated wastewater is spray irrigated, which is similar to "shipping" the product. Up to this point in the discussion, we have only "warehoused" the waste sludge in the sludge pit. Obviously, at some time, it is necessary to remove and properly dispose of the excess (waste) sludge. The waste sludge "shipping" operation has not been addressed at the time this manual was being written. The waste sludge is a good soil conditioner, similar to fertilizer. Since the treated sludge is already used to grow crops (hay) trucking the waste sludge from the pit to the fields and other local farms, and applying the sludge directly to the land may be an alternative for disposal and alleviate some of the odor problem. The ''landfarming" of sludge is not addressed in this manual. 11-8 SECTION III DESCRIPTION OF THE LUCKS, INC. WASTEWATER TREATMENT SYSTEM The wastewaters at LUCKS, Incorporated are segregated into three streams. These are: 1) The Process Wastewaters, 2) The Sanitary Wastewaters, and 3) The Rinse/Wash Waters from washing of greens and apples. FIGURE IiI-1 presents a schematic illustration of the treatment processes employed to treat each of the three waste streams. FIGURE 111-2 is a schematic depiction of the LUCKS, Inc. Wastewater Treatment System and illustrates how the treatment of the three -separate streams are inter -related. TABLE III-1 details the component dimensions and capacities of the various unit processes employed in each treatment scheme. Each of the three treatment schemes are described in detail in the following sections. PROCESS WASTEWATER TREATMENT SCHEME FIGURE III-2 is a schematic depiction of the Lucks, Inc. Wastewater Treatment System and illustrates how the treatment of the three separate streams are inter -related. The process wastewater treatment scheme includes both primary treatment and secondary biological wastewater treatment. PRIPPARY TREATMENT I ' GREASE COLLECTION INFLUENT (FOOD) GREASE ANO PR`rESS SCREENING SOLIDS pH ADJUSTMENT WASTiNATER REMOVAL -�EFF� QENT SECONDARY BIOLOGICAL TREATMENT CLARIFICATION AERATION STORAGE MIXTURE OF WASTEWATER, SPRAY IRRIGATION BACTERIA A OXYGEN (MIXED LIQUOR) RETURN SLUDGE SECONDARY BIOLOGICAL TREATMENT CLARIFICATION INFLUENT (FOQO) AERATION SANITARY MIXTURE OF WASTEWATER, WASTEWATER CNLORINATTON BACTERIA & OXYGEN (MIXED LIQUOR) EFFLUENT RETURN SLUDGE SLUDGE PIT SPRAY IRRIGATION STORAGE PROCESS WASTEWATER TREATMENT SCHEME SANITARY WASTEWATER TREATMENT SCHEME EFFLUENT , INFLUENT (FOOD) RINSE WASH SCREENING .' PH AINSEIWASH WASTEWATER TREATMENT SCHEM& ADJUSTMENT STORAGE WASTEWATER SPRAY IRRIGATION FIOURE 111-1. SCHEMATIC DIAGRAM OF THE BASIC WASTEWATER TREATMENT SCHEMES FOR EACH OF THE WASTESTREAMS :.✓L� J 1� SCREININGS RECIRCULATION LINE SEPARATED OIL I GREASE TO DISPOSAL PRESSURE WETTANK STEAM RENDVEp 8Y � WELL PUMP IINE COr�IRaCTOR rEWATE SLUDGE COLLECIION EWATR BOX SCREEN F I BDX AIR ------ wABNlRINeH o D1S5DLUED AIR WASTEWATER TLOATAIOR o ABANDOIED AC LINE r H MANHOLE \ SANITARY LIMC PIT WASTEWATER- AIR-L;FT PUMP VIBRATING SCREEN MANHOLE SPUTTER BOX 2 fi!SPLITTER BOX 1 .y Z b cn 2 SH r7 } SLUDGE u AEROBIC WWTP t - DOMESTIC SLUDGE AND]DR DRAIN��l SPRAY IRRIGATION AEROBIC SYSTEM Wwrr CHLORINE LAND APPLICATION �^ SLUDGE PIT Z_� ".�" STORAGE POND CHLORINE CONTACT CHAMBER FIGURE III-2. LUCKS, INC. PROCESS FLOW SCHEMATIC WASTEWATER TREATMENT SYSTE" TABLE III-1 COMPONENT DIMENSIONS AND CAPACITIES PR C A SCREEN BOX: LENGTH.............................................610t, WIDTH.......... ..........r............,,........... 41311 DEPTH.............................................. P4tr VOLUME.......................•....•..85-FT3 (636 Gallons) WET WELL: LENGTH......... ............... ..................... 210„ WIDTH........... .....•......... .............•....•..31011 DEPTH..............................................3161, VOLUME........:........••.•..........21-FT3 (157 Gallons) PRESSURIZATION PUMPS FOR DAF UNIT: NUMBEROF PUMPS................«...,•.•......,........1 TYPE..................•............ Centrifugal, 2-Stage EACH STAGE: SIZE...................,,..................2" x 211 CAPACITY..................... ...••.....••....50 gpm RPM.......................................`....1750 IMPELLER DIAMETER ................ •o..,... .6.84 in. MOTOR: TYPE.................................. Double Shaft RPM•••••••••••••..• ...........................1750 III-4 TABLE III-1 continued.. COMPONENT DIMENSIONS AND CAPACITIES MOTOR continued.. VOLTAGE........................................220 AMPERES...........................•...,.......1u.$ AIR COMPRESSOR FOR DAF UNIT: MOTOR...............................Gould, Century RPM...........................................17�5 AIR STORAGE TANK VOLUME, approximate ... ..■.•....•....•..••.3.59 FT3 PRESSURIZATION FOR DAF UNIT: WORKINGPRESSURE...............••......••......100 psig DIAMETER.......................•.....,.,..,.....,..�,p�l LENGTH, Top to Bottom ....... .................... 4111.5" DISSOLVED AIR FLOATATION UNIT: NUMBEROF UNITS................•..•..................,1 MANUFACTURER...............•..•............••.....EIMCO MODEL.............................................2�i67A CAPACITY... ...........................•......... DIAMETER ........ .............. ....................12i{�u SIDE WATER DEPTH...................................9'0" III-5 TABLE III-1 continued,. COMPONENT DIMENSIONS AND CAPACITIES DRIVE UNIT FOR DAF MOTOR: SLUDGE COLLECTION BOX: LENGTH.............................................$rgri WIDTH..............................................6r0" DEPTH...... ..... .... i}rOrr VOLUME ........... .................. 192-FT3 (1436 Gallons) AIR-LIFT PUMP PIT: LENGTH.............................................2r5" WI:DTH......r.......................................2rOri DEPTH..............................................41Orr VOLUME...............................20-FT3 (150 Gallons) SPLITTER BOX 2: WEIRLENGTH FOR DOMESTIC WWTP........................5" WEIRLENGTH FOR PROCESS WWTP........................10" WEIRLENGTH FOR STORAGE POND........................34" PROCESS WASTEWATER TREATMENT -PLANT CAPACITY.....................................60,000 gpd AERATION TANK DIAMETER............................35-FT CLARIFIERDIAMETER................................14-FT III-6 TABLE 111-1 continued.. COMPONENT DIMENSIONS AND CAPACITIES PROCESS WASTEWATER TREATMENT PLANT continued.. SIDEWATERDEPTH.. ................ AERATION BASIN VOLUME ....................60,451 GALLONS CLARIFIER VOLUME .........................11,514 GALLONS TOTALVOLUME.............................71,966 GALLONS DETENTION TIME (AERATION) @ 600000 gpd........1.01 days DETENTION TIME (CLARIFICATION) @ 60,000 gpd..4.61 hours WEIRLENGTH .................... ................... 44—FT WEIR LOADING RATE @ 607000 gpd..............1364 gpd/FT CLARIFIER LOADING RATE 0 60,000 gpd.......... 390 gpd/FT2 AERATION: NUMBEROF BLOWERS,,,,,,,., ... maeososeete ... mv.9w*v9*.w2 MANUFACTURER........ ...... oeeoeeee ... o .... ***** ... ROOTS TYPE & MODEL...............Positive Displacement, 610AF HORSEPOWER......................................15 each RPM................................................17b0 AERATORTYPE..........................Non—Clog Air Diffusers CLARIFIER DRIVE MECHANISM, H.P......................1/2 H.P. I SANITARY WA LgATER TRAIN SPLITTER BOX 1: WEIR LENGTH FOR DOMESTIC WWTP.......................2211 WEIR LENGTH FOR PROCESS WWTP........................4411 III-7 TABLE III-1 continued.. COMPONENT DIMENSIONS AND CAPACITIES DOMESTIC WASTEWATER TREATMENT PLANT CAPACITY.....................................30,000 gpd AERATIONTANK DIAMETER ............... ............. 25-FT CLARIFIERDIAMETER................................12-FT SIDEWATER DEPTH..................................12-FT AERATION BASIN VOLUME ....................33,908 GALLONS CLARIFIER VOLUME .........................10,152 GALLONS TOTALVOLUME.............................44,060 GALLONS DETENTION TIME (AERATION) @ 30,000 gpd........ 1.13 days DETENTION TIME (CLARIFICATION) @ 309000 gpd..8.12 hours WEIRLENGTH......................................37.7-FT WEIR LOADING RATE @ 30,000 gpd...............796 gpd/FT CLARIFIER LOADING RATE @ 30,000 gpd.......... 265 gpd/FT2 AERATION: NUMBER OF BLOWERS.....................................2 MANUFACTURER......................................ROOTS TYPE & MODEL...............Positive Displacement, AF-55 HORSEPOWER.......................................5 each RPM................................................175Q AERATOR TYPE... ....................... Non -Clog Air Diffusers CLARIFIER DRIVE MECHANISM, H.P......................1/2 H.P. III-8 TABLE III-1 continued.. COMPONENT DIMENSIONS AND CAPACITIES CHLORINATION SYSTEM: MANUFACTURER..........................WALLACE & TIERNAN MODEL..............................................5640 ' TYPE........................................Liquid Feed CHLORINE SOLUTION RESERVOIRS ........... 2 @ 30 GAL. each TYPE CHLORINE ........................HTH, dry chlorine, 65% Calcium Hypochlorite SLUDGE PIT. LENGTH............................................ 11T4', WIDTH...............................................10, DEPTH........................,........,...,,......,.,51 VOLUME,....,o.;...,.....*....,,....567-FT3 (4239 Gallons) CHLORINE CONTACT CHAMBER: LENGTH..............................................151 WIDTH................................................6� DEPTH..............................................1.51 VOLUME ............................. 135-FT3 (1010 Gallons) DETENTION TIME @ 300000 gpd,,,,,4$ Minutes MAXIMUM ALLOWABLE FLOW RATE TO MAINTAIN A 30 MINUTE DETENTION TIME .......... 48,500 gpd OVERFLOWWEIR LENGTH................................12�, III-9 TABLE III-1 continued. COMPONENT DIMENSIONS AND CAPACITIES A VIBRATING SCREEN; MAKE.............................................. SWECO TYPE........ .............. ....... VIBRO-ENERGY SEPARATOR MODEL..........................................LS 30566 STRAY IRRIGATION SYSTEM IRRIGATION PUMPS: NUMBER................................................2 MOTORS.......................«,..................... G.E. H.P............................................75, each RPM................................................3555 PUMPS..............«.........,.........,......,..GOULDS MODEL..............................................3196 INSTRUMENTATION AIR COMPRESSOR, HP ...............« „1,5 STORAGE BASIN VOLUME ..................«,500,000 Gallons R IRRIGATIONAREA................................40 Acres NUMBEROF IRRIGATION LANES ...........................1b NUMBER OF IRRIGATION SPRINGLER HEADS,,,,,,4,,9,,,,,,210 Primary treatment involves screening, grease separation, and pH adjustment. Screening is accomplished by introducing the water through a mesh screen to remove the large food and grease particles. The screenings are placed in a container and disposed of on a daily basis. Grease and solids are removed from the Process Wastewater Stream by a Dissolved Air Floatation (DAF) Unit. In the DAF process, air is added at pressures greater than atmospheric pressure to the incoming wastewater stream. When pressure is reduced and turbulence is created, air in excess of that required for saturation at atmospheric pressure leaves the solution as very small bubbles of 50 to 100 um in diameter. The bubbles adhere to the suspended particles and grease and become enmeshed in the solids matrix. Since the average density of the solids - air aggregate is less than that of water, the agglomerate floats to the surface. The floated solids build to a depth of several inches at the water surface. Water drains from the float and affects solids concentration. Float is continuously removed by the skimmer. Good solids floatation occurs with a solids -air aggregate specific gravity of 0.6 to 0.7,�"�-- FIGURE III-3 presents a schematic illustration of the Dissolved Air Floatation Unit used in the Process Wastewater Treatment Scheme. The DAF Unit, manufactured by EIMCO, is a 12- foot diameter circular unit with a nine foot side wastewater depth. The separated oils and greases (float) are transferred to GREASE TO COLLECTION BOX A SKIMMER PROCESS -WASTEWATER FLOAT BOX STREAM :� MIXING OVERFLOW TO BIOLOGICAL WASTE TREATMENT PLANT CHAMBER BAFFLE FLOA -41-Ok..THICKENER , '" CLARIFIED LIQUID FROM BACK / SETTLED SLUDGE TO PRESSURE AIR --LIFT PUMP PIT_ VALVE AIR SOURCE CHEMICAL FEED (polymer) PRESSURIZED AIR RECYCLE FLOW FEES ;;. (Air -Pater Mixture) 7 RETENTION TANK AIR CONTROL PANEL PRESSURIZED rf FLOW FLOW CONTROL � ' VALVE. PRESSURIZAiIOH PUMP f''';:.' F : - c (Recycle Pump) FIGURE 111-3. SCHEMATIC ILLUSTRATION OF THE DISSOLVED AIR FLOATATION UNIT the sludge collection/storage box. Steam is utilized to keep the accumulated material in the sludge collection box liquid. A private contractor periodically removes the accumulated oils and greases from the sludge collection box. A sludge drawoff/drain valve is provided on the bottom of the DAF. As the name implies this valve is used to remove any solids that may accumulate during operation of the unit or to drain the DAF for inspection or repairs. The sludge from the DAF drains by gravity into an air lift pump pit. The liquid is then transferred by an air lift pump to Splitter Box No. 1. (See FIGURE III-2). The .primary treated Process Wastewater Stream (oil, grease and solids removal) leaving the DAF Unit flows by gravity to ,a-, Wsma-l�l,,:!-pit-immed: a:tely adjacent .tg Splfitter Box 2. The pH of the .:wast'estr°iam is measured and if necessary, gr""an a "lime (50-1b D '= bags) are added to raise the pH of the.*beam. At this juncture, primary (physical/chemical) treatment is considered complete and the remaining treatment steps are referred to as secondary (biological) wastewater treatment. The Process Waste Stream, at this point consists of organic solids and liquids. These organic solids and liquids will break down or decompose. Bacteria use the organic chemicals in the solids and liquids as food and actually do the work of breaking the chemicals down. The bacteria, just like the cells in our body, need oxygen to live and grow. If enough oxygen and enough food are present the bacteria will live ideally. Process Wastewater is purified by the destruction of the organic compounds by using aeration to oxidize the volatile material into gas, water and sludge. Continued aeration of highly concentrated solids produces additional organisms that break down their own and other dead cell material into water, carbon dioxide and ash. The resulting effluent is clear and odorless. Generally speaking the plant will remove approximately 85% to 90% of the BOD (Biochemical Oxygen Demand) and Suspended Solids when properly operated and maintained. BOD refers to the amount of oxygen that is used by living biological organisms in the oxidation of organic matter in the waste. Biological Wastewater treatment consists of two basic operations; they are aeration and settling. The aeration and settling processes are accomplished in a 60,000 gpd rated capacity, aerobic wastewater treatment plant manufactured by EIMCO. The modular wastewater treatment plant and associated piping and equipment are schematically illustrated in FIGURE III-4. The wastewater treatment plant is a package (shop manufactured and field assembled) plant of metal construction. It consists of two concentric tanks, one within the other. The outer compartment serves as the aeration basin and the inner tank is the clarifier (settling). The primary treated Process Wastewater Stream flows by r Rinucp CLARIFIER DRIVE scum SCUM BOX BAR SCREEN SLUDGE RETURP INFLUENT PIP SLUDGE L DIVIS NON -CLOG AIR DIFFUSERS I P E NT LAUNDER FIGURE 111-4. SCHEMATIC ILLUSTRATION OF BIOLOGICAL WASTEWATER TREATMENT PLANT gravity into the plant through a bar screen. From the screening device the wastewater flows into the aeration chamber. In this chamber wastewater is decomposed by the action of aerobic bacteria and other micro-organisms in the presence of air (aerobic condition). In a properly operating plant, these micro- organisms (some people call them "bugs") wili form a dark brown mass called activated sludge floc. This floc is mixed with the incoming wastewater by introducing air around the outside of the tank near the bottom through air diffusers, which causes mixing currents within the liquid. An adequate air supply is maintained to allow the organisms to decompose the wastewater into carbon dioxide, water and ash. The air is provided by a rotary positive displacement blowers housed in a metal structure mounted atop the plant. The air is piped through air header pipes to the diffusers at the bottom of the aeration tank. -A­--&_e6bnd--Vl-ower Yfor staff, -by sertxc pis provaded: Each-.wer- is equipped with :a €i-f__t bfil -.6inut-e-:rhterVal- -timer -to control,the-amowrit of air, su`p.pf 'd. The aeration tank is designed to provide a volume equal to the total twenty-four hour flow. J_t7 ZrbW the aeration chamber, the treated wastewater mixes with the activated sludge floc and passe through pipe in the wall into the settling tank or clarifier. In the clarifier the heavy activated sludge floc settles to the bottom, and the clear treated liquid flows over a weir into the dischrage line. Adequate volume is provided in the clarifier to retain the wastewater usually for a four hour period, depending on flow conditions. The settled sludge or bacteria are then returned to the aeration chamber by the air lift sludge return system, to decompose more incoming sewage. This system consists of pipe extending from below the clarifier collection hopper (See FIGURE III-4), back to the influent. bax. Air is injected near the bottom of this pipe. As the air rises, the sludge is drawn into the pipe from the hopper and lifted into the horizontal sludge return pipe, which pumps the liquid to the inlet of the aeration tank,where it is mixed with more incoming wastewater. An air lift type skimmer, operated on the same principle, is installed in the settling tank so that floating solids can be removed and discharged back into the aeration tank. These are the basic components of the aerobic treatment process. Thus treated, the wastewater will have eighty-five to ninety-five percent of its organic material removed. Excess biological sludge may be sent to the sludge spit for subsequent disposal. The primary and secondary treated Process Wastewater flows by gravity from the 60,000 gpd aerobic treatment plant to the storage pond, and is subsequently spray irrigated. _ANITARY WASTEWATER TREATMENT SCHEME The sanitary wastewater stream consists primarily of toilet i�.wastewater and some wash water from the initial bean wash. FIGURE III-1, schematically depicts, the unit treatment processes and the flow pattern employed to treat the Sanitary Wastewater Stream. FIGURE III-2 illustrates how the Sanitary Treatment Scheme is integrated into the entire treatment process. Treatment of the Sanitary Stream consists of secondary biological treatment, chlorination and spray irrigation of the treated effluent. Biological treatment (secondary treatment) of the Sanitary Waste Stream is accomplished in an identical manner to that described for the treatment of the Process Wastewater Stream. The wastes flow by gravity into a 30,000 gpd aerobic treatment plant manufactured by EIMCO. The component dimensions and capacities of the various units and items of equipment are described in TABLE III-1. A description of the biological treatment plant is identical to the description presented for the Process Wastewater Treatment Scheme, and will not be re-interated here. Excess biological sludge generated from the treatment of the h Sanitary Wastewater Stream may be transferred to the sludge 'pit. for subsequent disposal by land application. The secondary treated Sanitary Waste Stream flows by gravity to the chlorine contact chamber. The chlorine contact chamber is a baffled chamber (to prevent short-circuiting) with a volumetric capacity of approximately 1,000 gallons. At a flow rate of kt-. 30,000 gpd, the chlorine contact chamber has a detention time of 48 minutes. A thirty minute detention period is considered adequate. Chlorine is added to the treated Sanitary Waste Stream to kill any disease carrying (pathogenic) bacteria which might be in the effluent. A liquid chlorine solution is prepared by mixing a weighted quantity of dry powdered, HTH (High-Test- Hypochlorite) with water. This solution is transferred by a chlorinator pump from a solution tank in the small building adjacent to the chlorine contact chamber, and discharged into the chlorine contact chamber. The treated Sanitary Wastewater Stream is then allowed to mix with the chlorine. After the contact period (48 minutes @ 30,000 gpd flow rate) the treated stream passes out of the chamber over a 1211 rectangular weir and into the storage pond. In the storage pond, the treated Sanitary Waste Stream is ,.ombined with the other waste streams and spray irrigated. IN WA H WA EWAT R REA MEN CREME Treatment of the wash and rinse waters from the greens and apple processingline consists oscreening, �y f g f "�� d j� s, tme'I��, a n d discharge to the storage pond. FIGURE III-1 presents a schematic representation of the treatment process and FIGURE III-2 illustrates how this waste stream is integrated with the other two treatment schemes. The Wash/Rinse Wastewater flows through a SWECO Vibrating Screen Separator. This removes any large debris and/or food stuff which may be in the Wash/Rinse Stream. The screenings are collected in a trash container and disposed of daily. If pH adjustments are necessary, lime can be added to Splitter Box 2. From here, the screened Wash/Rinse Waste Stream is directed to the storage pond where it is combined with the other two waste streams. SPRAY IRRIGAIIO SYSTEM The treated wastewaters from the Luck's Cannery are spray irrigated on 40 acres of crop land adjacent to the cannery. FIGURE II1-5 presents a topographical map showing the LUCKS, INC. Spray irrigation system. The system consists of 5001000 gallon storage basin for the treated wastewaters that are to be spray irrigated, two 75 H.P. Goulds Pumps, 16 irrigation lanes with a capacity of 210 irrigation sprinkler heads. The irrigation sites consist of approximately 40 acres of cleared land with a grass cover crop, which is harvested periodically. The treated wastewaters are periodically pumped from the storage pond and sprayed on to the grass crops on one or more of the 16 lanes. The frequency of irrigation is determined by the amount of treated wastewater to be disposed of, and hydraulic loading limitations of the sites and weather conditions. 111-20 LEGEND 0- A- M..".L 0- A-. CO-ORDI NATI QD 0.000 0,000 (&-sUL6312 534.4051 Q-r72&%,4 sou'vi 1-24.1%12U U.34LIM17 FICIURIE 111-8- LUCK4. INC. SPRAY IRRIGATION SYSTEM SECTION IV CONTROLLING THE WASTEWATER TREATMENT PROCESSES The purposes of treating the wastewaters generated by Luck's, Inc. (and hence, optimizing the performance of the wastewater treatment plant) are: 1) To completely stabilize the wastewater, 2) To dispose of the wastewater in an environmentally acceptable manner and, 3) To reduce and minimize odors. The following discussion is directed toward those ends. The Wastewater Treatment System employed at Lucks, Inc. is an integrated system of physical, chemical and biological processes, Each of which must function properly in order for the entire system to work properly and produce a quality effluent. The wastewater treatment plant operator has a limited number of factors which may be controlled to obtain the best performance from the treatment system. An examination of FIGURE I1I-2 indicates that there are only four processes that the operator can (and must) control to provide effective and economical control of the wastewater treatment system. These are: 1. pH control of the wastewater 2. Proper operation of the Dissolved Air Floatation Unit 3. Control and optimization of the biological treatment plants, IV-1 4. Control of the Spray Irrigation System. Variable factors that can affect the performance of each of the aforementioned processes and the operators control over these factors are discussed in the following sections, and suggested operating strategies are presented. D-H-CQNTROL PH is a method of expressing the acid condition of a wastewater. The pH scale ranges from 1 to approximately 14, with a pH of 1 to 7 considered the acid range and 7 to 14 the basic range. pH 7 is defined as neutral. A proper pH range must also be maintained in the plant aeration basin to maintain a healthy and active system. This is apparent in the relationship between biological activity and pH as illustrated in FIGURE IV-1. Bacteria can survive in a pH range from 5.0 to 10.0 but they thrive between pH values of 6.5 and 8.5. Below a pH of 6.5, fungi can become the predominant organism present, rather than bacteria, and poor BOD removal and settling will result. At too high a pH, nutrients such as phosphorus will begin to precipitate and become unavailable for use by the bacteria. This again will result in poor BOD5 removal. Under extreme high or low pH conditions, the plant biological population will be killed. The operator should routinely monitor the pH of the incoming wastestreams and of the two aeration basins. This pH should be measured 2 to 3 times per shift and the results recorded in the Operator's Log Book. IV-2 cz ez 0 0 cz ram. 6 7 8 9 pH FIGURE IV-•1. BIOLOGICAL ACTIVITY VS pH LEVEL As previously noted, the optimum (ideal) aeration basin pH is in the range of 6.5 to 8.5. The Process Wastewater Stream has a low acidic pH value. The operator must add lime (basic) in the Splitter Box to raise the pH prior to introduction of the wastewater into the biological treatment plant. The amount of lime added should be recorded in the Operator's Log Book. When adding lime to adjust the pH it is acceptable to err on the high side (pH 7.5 to 8.5) since the biological activity occurring in the aeration basin generates CO2 and tends to lower the pH. A secondary, but no less important, reason for maintenance of proper pH is to protect the equipment and facilities. Both extremely high (basic) and low (acidic) pH values will deteriorate metals and concrete. C NT OLLIN HE DI OLVED AIR FLOATATION DAF UNIT Proper operation of the DAF system is vital to obtaining good biological treatments minimizing odors, and extending the useful life of the irrigation site. If the DAF were not _was=na.t� operating or was operating inefficiently, large quantities of oil and greases would be introduced to the subsequent processes. This could result in clogging of lines, scum deposits in vessels, and poor oxygen transfer in the aeration basin resulting in low BOD removal efficiencies. Oil and grease in the Storage Pond coupled with poor BOD removal efficiencies could cause IV-4 significant odor problems. Additionally, if oil and grease were sprayed on the irrigation sites, blinding of the sites would occur, shortening the useful site life, and causing runoff and odors. Proper and controlled operation of the DAF unit will remove most of the non-emulusified (not in dissolved in the water) oils and greases. The following description of the DAF unit operation was adapted from the manufacturers (EIMCO) 0 & M manuals. FLOATATION EQUIPMENT The basic Floatation System consists of the following main components as shown in FIGURE III-3: 1) Floatation thickener with skimmer 2) Pressurization pumps 3) Air flow control panel 4) Retention tank 5) Back pressure control valve DESCRIPTION OF THE FLOATATION SYSTEM Referring to FIGURE III-2 and FIGURE 11I-3 dissolved air flotation is accomplished in the following sequence: 1. Pressurizing the Flow (Process and/or Recycle Water). A portion of the clarified effluent from the floatator is pressurized to 75 psig by the pressurization pumps and pumped into the retention tank. Although this pump operates at approximately 75 psig, the pressure at the floatation tank is controlled independently at 60 psi by the back pressure control valve. The 15 psig difference is due to the pressure loss in the system. The volume of the pressurized flow is controlled by the flow control and back pressure valves at the discharge side of the pump. IV-5 2. Dissolving Air Into Solution. As the pressurized water is pumped into the retention tank, it mixes with the incoming air which dissolves into solution with the water. The water level in the retention tank is held down by the air pressure which is controlled automatically by an air release valve. (To operate correctly this valve must be set to continuously release small amounts of air.) 3. Air Injection. The air supply is fed into the retention tank at the controlled rate specified on the drawings in SCFM. At that pressure, most of the air is dissolved in the pressurized flow. The air flow control panel shown in FIGURE IV-2 ensures that a precise, measured quantity of air will be delivered to the retention tank. The solenoid valve permits the flow of air only when the pressurization Pump is operating. The hand operated needle valve is used to control the amount of air going into the system and the rotameter shows the rate, while the air pressure regulator limits the air pressure. The by- pass valves at the inlet and outlet of the .rotameter allow for gradual start-up of air to the rotameter in order to prevent tube breakage and to allow for isolation of the rotameter for maintenance. 4. Chemical Addition to the Feed or Pressurized Flow. if a chemical, such as a Polymer, is used to aid in the flotation process, it is fed to the pressurized flow or to the feed just before entering the flotation tank. The dosage must be determined regularly during each shift by testing. 5. Pressure Release and Sludge Floatation. The floatation tank is where the separation of the floatable materials from the raw feed takes place. Here the pressurized and air saturated flow (recycle) passes through the back -pressure control valve into a chamber at the end of the valve, where it intermixes with the raw feed just before it discharges into the tank. As the pressurized flow leaves the valve, the sudden release of pressure releases the dissolved air into the tiny air bubbles that carry the fine solids and liquid particles to the surface of the tank, creating the floating sludge blanket. IV-6 O UTLET Tt RETENTION B Y--PASS VALVI INLET FROM AIR SUPPL SOLENOID VALVE FIGURE IV-2. AIR, OUTLET VALVE ROTAMETER PRESSURE GAUGE AIR INLET VALVE NEEDLE VALVE AIR PRESSURE REGULATOR AIR FLOW CONTROL PANEL 6. Sludge Thickening and Skimming. Sludge thickening occurs as successive particles of sludge, oil, grease, and air bubbles force the blanket up to and above the surface of the water, allowing the solids and 0 & G to compact and lose water. This sludge blanket is normally 12 to 24 inches thick, with the dryer compacted solids above the water level. The surface skimmers continuously skim the more compacted solids from the surface of the sludge blanket and discharge them into the float box. The clarified effluent passes under the outer floatation baffle, over the weir and out of the tank. The baffle extends a minimum of 4 feet below the surface of the water in order to contain the floating solids and keep them from passing out with the effluent. Some of the effluent is recycled back for pressurization. Any settled sludge or grit is swept to the center bottom of the tank by the rake )arms fitted -with--' � �a . °t omg�e.s;;. The solids are -p.Km:p°6,d out at timed ,�- intervals and in small 'batches by the dsdgng�7�r1 e.¢u-.1_P-mint.: These solids are carried away to the air- lift pump pit and subsequently to the 30,000 gpd Wastewater Treatment Plant. START-UP AND OPERATION A. Start -Up 1. Check the lubrication referring to the instructions in the manufacturers' manual. 2. Close the drain valves and fill the floatation tank with clear water. The raw feed sludge valve must be closed. 3. If a chemical and/or polymer is used, prepare it in full strength as recommended by the manufacturer. Do not exceed the maximum recommended concentration and note that the maximum concentration may vary even with the same manufacturer's products. Generally, this concentration is 0.5% to 1.0% for dry polymer and 4.0% to 5.0% for liquid polymers. The quantities required for the best thickening and solids capture must be determined for each sludge. But as a rule, they are usually in the range of 5 to 15 pounds of chemical for each ton of dry solids. IV-8 4. Referring to FIGURE IV-3 algae the retention tank valves #1 and #4 (flush and bleed valves) and ggen valves #2 and #3 (isolation valves). 5. At the air control panel, FIGURE IV-2, close the inlet and outlet valves to the rotameter and open the by-pass valve. Also, close the air needle valve until it's just snug. 6. Referring to FIGURE III-3, close -the back pressure valve, then open it about 2 turns. Do not leave it closed all the way since pressure can build up too rapidly before it can be adjusted. 7. Open the recycle flow valve on the discharge side of the recirculation pump. Note that start-up recycle flow must be from the cleanest water available. 8. Check the air supply line pressure to be sure it is at the psig pressure specified by the manufacturer. Start the air compressor. Check the pressure regulator in the air control panel to make sure it is operating and is set for a maximum line pressure of 80 psig. Then stop the air. 9. Start the pressurization pump and allow the retention tank to fill. Check for pressure in the line leaving the pump to insure there are no air locks. 10. Adjust the back pressure valve for a reading of 60 psi. This 60 psi setting should maintain the 65 psi at the retention tank, provided the 5 psi allowable pipe loss was not exceeded. (The 10 psi pressure loss in the retention tank accounts for the higher 75 psi pump pressure.) 11. Only when the tank is full of water, should the air be started to the system. To prevent breakage to the rotameter tube, the volume of air must be started gradually as follows: a. Referring to FIGURE IV-2, open the air control needle valve about one turn. This valve will be adjusted later with the rotameter. Recheck the pressure regulator. b. Open the inlet valve to the rotameter slowly at first, then all the way. This equalizes the air in the rotameter and the by-pass protects against sudden excess pressure. IV-9 VENT TO -� ATMOSPHERE VALVE 04 TO BLEED AIR FROM THE TANK (CLOSE. WHE�i 0PERATING)�� AIR R EL ASE VALVE VALVE �1 CLOSED WHEN OPERATING (FLUSH FOR THE RELEASE VALVE) .V VE 93 OPEN WHEN OPERATING (ISOLATION VALVE) SAFETY VALVE '.I RETENTION TANK CONTROLLED LIQUID LEVEL IN TANK_.. VALVE 42 OPEN WHEN OPERATING (ISOLATION VALVE) AIR COMPRESSOR OR OTHER AIR SOURCE AIR FLOW CONTROL PANEL PRESSURIZATION PUMP TANK OUTLET (COUPLING) FIGURE IV--3. RETENTION TANK AND AIR ACCESSORIES c. Slowly open the outlet valve 112 turn and allow the float to stablize. d. Then gradually open the outlet valve and at the same time slowly close the by-pass until it is fully closed. Watch the rotameter. If the flow rate exceeds maximum on the scale, throttle the air control needle valve. e. Air control to the rotameter is now controlled by the air control needle valve. (Inlets and outlets should be fully open and the by-pass closed.) WARNING: Leave the rotameter operator shield in place. Whenever performing any maintenance, remove all pressure from the rotameter and be sure the float is at the bottom, showing no flow and the pressure gauge is showing zero. 12. Adjust the air control needle valve until the air flow reading on the rotameter is 2.9 SCFM per 100 GPM of pressurized flow for start-up. This will be adjusted later for a slight air bleed from the air release valve for normal operation. 13. Allow the water level in the retention tank to come down to the "controlled liquid level in the tank" shown in FIGURE IV-3. At this level, the water in the retention tank will stabilize, while a small volume of excess air (approximately 1W will discharge intermittenly through the air release valve. If the water level in the retention tank is above the "controlled level", increase the air feed rate with the air control needle valve. It may take 15 - 45 minutes for the water to drop to proper level. But if the water level does not drop, although an air flow greater than about 2.0 SCFM per 100 GPM of recycle is used, it may be due to continuous loss of air from the air release valve caused by debris caught in the air release orifice. If the water level in the tank is bglpb the "controlled level", the release valve orifice or exhaust piping may be plugged. It may also be IV-11 caused by improperly installed piping. In any case, the system must be shutdown and the valve or Pipes removed and cleaned. A low liquid level is unacceptable because it allows free air to escape through the retention tank and into the floator, disrupting the floating material. Check the water level at the vertical sight glass. (Dark the glass for ready reference.) The water in the glass may appear milky white in color, due to the air mixture with the water. 14. If a chemical (polymer) is used, start the feed Pump after the chemical is in solution. 15. Allow the unit to run a few minutes to charge the floatator with aerated water and chemical feed, if used. lb. After continuous operations of one to 3 hours, test the depth of the sludge blanket (float). This blanket should be between 12 and 24 inches, which is the recommended operating depth. 17. Then start the skimmer drive. Adjust the speed so the skimmer is removing the upper portion of the float blanket at about the same rate the floatator is producing the floating solids. Check the blanket depth frequently at first. If the skimmer blades move too rapidly, they will cut too deeply into the floating blanket resulting in a thinner float and a higher percentage of water. B. Routine Operation The flow through the system to the floatator should be continuous and set for as constant a rate as possible. This requires continuous information. To provide that information the following checks and adjustments if necessary, should be made twice per shift. 1. Check the pressure in the system. These pressures should be read as follows: a. Back pressure valve - 60 psi IV-12 b. Retention tank - 65 psi c. Pressurization pump - 75 psig NOTE, If pressures have varied from the design point, adjust as necessary. 2. Check the flow through the system: a. Pressurized flow from pressurization pump in GPM b. Air flow to retention tank in SUM (Slight and continuous air bleed from the air release valve should be maintained for normal operation. The air -to -solids ratio is important because it affects the sludge rise or lift rate. c. Flow through the back pressure valve in GPM d. Flow of raw feed to the floatator in GPM e. Underflow from bottom of tank 3. Check the "controlled water level" at the sight glass and check for normal operation of the release valve. a. The air release valve should continuously release small amounts of air to maintain the "controlled water level". b. If the water level is below the "controlled level", the excess air will form large bubbles that tend to rise rapidly, break up to the floc particles and disrupt the sludge bed. On the other hand, a high "controlled level" will produce a less than adequate float solids concentration, resulting in an increase in the turbidity of the effluent. 4. Check the depth of the sludge blanket. The recommended blanket depth is between 12 and 24 inches. To increase the depth, reduce the skimmer speed and/or increase the feed rate. To reduce the blanket depth, do the reverse. Iv-13 Make a visual check of the floatator pressurizing equipment for proper system and mechanical operation. a. Check the effluent for large flocs overflowing the weirs, which would indicate a problem with the pressurization system. A very turbid effluent without flocs would indicate a chemical and/or air deficiency or overloading of the system. b. Check the sludge blanket depth. A shallow blanket may indicate excessive skimmer speed or a process problem with the chemical, the flow rate, or rate of solid. e. Check the drive control (only once daily) for alarm and shutoff. d. Check the floatator drive, pressurization pump, sludge sump and underflow pumps, and the chemical mixer and feed pumps, if furnished, for lubrication, general condition and overheating. 6. Check the supply of chemical, if used, and the feed rate. 7. Test for chemical requirements, if a chemical (polymer) is used to aid in the floatation. Refer to the APPENDIX at the end of this manual for a recommended test procedure. 8. To provide continuous information on the performance of the system, a rise test is suggested. This test will help determine the best air -to -solids ratio, loading rates, and mechanical performance and serve as a tool for trouble shooting during poor performance. Refer to the APPENDIX at the end of this manual for the test procedure. C. Shutdown 1. Shut off the influent raw feed. 2. Shut off the chemical supply, if used. Stop the pumps and mixers then close the valves. IV-14 3. Allow the skimmer to operate at least 30 minutes after the influent raw feed has stopped or as long as necessary to permit the removal of the sludge from the water surface, leaving the water in the floatator tank near '.y clean and ready for start-up. 4. Shut off the air supply to the air flow control panel or shut off the inlet gate valve to the rotameter. Stop the compressor. DQ_aQ_t use the air control needle valve or the air pressure regulator valve. 5. In reference to FIGURE IV-3 release excess air from the retention tank by closing valve #2 below the air release valve and opening valve #1 until the water is cleared from the air release valve. Then close valve #1. Let the air bleed and the pressurization pump to run until the air flow stops. This procedure will prevent a violent boiling and spraying of air out through the floatator when the recirculation pump it turned on. b. Turn off the pressurization pump. (This will close the solenoid valve in the air control panel.) Then close the valve on the discharge side of the pump. 7. Reopen valve #2 under the retention tank. 8. Stop the skimmer drive (30 minutes after stopping the raw feed). 9. Shut off the underdrain pumps. 10. When the float box is empty of sludge, wash down the float box to prevent odors. Then pump out the residue and shut off the sludge pump. 11. The floatator tank should now be clear of suspensions and sludges and the retention tank filled with almost clear water. The entire system is primed for start-up. D. Emergency Shutdown In case of a loss of power, the entire floatation system should be closed, generally following the shutdown procedure, unless emergency power is available. After power is restored a normal start-up should be performed. IV-15 MTRQLLING THE BIOLOGICAL A E PRQCESS Although there are two biological wastewater treatment plants, a 300000 gpd unit for the Domestic Stream and a 60,000 gpd unit for the Process Stream, the operating strategies will apply equally to both. In the latter portions of this Section, some control operating strategies will be presented so as to operate the units as parallel plants rece:_ving the same influent feed. Further, the following discussion on controlling the treatment process is predicated on operating the systems to produce a good quality effluent for disposal by spray irrigation, and that the excess biological sludge will be disposed of separately by land application. QUANTITY AND QUALITY OF THE INFLUENT WASTEWATER The operator has no direct control over either the quantity (i.e., flow) or the quality (which includes SOD, solids, grease, etc.) of the wastewater from the cannery processing area. Yet, the influent wastewater is one of the most important variables in, as well as being the reason for, biological treatment. While the operator cannot control the production area wastewater, he can work closely with the production area supervisors to coordinate the biological treatment with the cannery operation. The daily influent wastewater flow is very critical to the biological system's proper operation, as will be seen later in this section. The operator needs to know the daily volume of production wastewater (or at least have a good estimate), IV-16 to determine the appropriate return sludge flow rate for that day. Weekly estimates of the number of production days and the total quantity of wastewater to be generated are needed. The weekly and daily estimates of production wastewater flows are provided by the appropriate supervisor. At the time this manual was being written, limited data were available to correlate the canning processing activity with wastewater generation. FIGURE IV-4 presents a suggested form to obtain the data needed to make accurate estimates of wastewater generation. After several months of these data are collected, the data may be analyzed by simple statistics to correlate either the pounds of raw vegetables and fruits or number of cases of product processed to wastewater and BQD-loading. Continued use of the form in FIGURE IV-4 will enable the production supervisor and the wastewater treatment personnel to recognize and adjust for any changes in the correlations. The production wastewaters go through th primary of .% pretreatment system before the biological treatment system. Therefore, the actual influent to the biological system is the effluent from the primary or pretreatment system. Proper operation of the pretreatment system (including screening, DAF, and pH adjustment) to remove as much grease and solids from the wastewater as possible is extremely important to the best performance of the biological system. The operation and control IV-17 FIGURE IV A 4-WEEK SUMMARY OF PRODUCTION VS. WASTEWATER FOR _-_ TO , 198� DATE DAY OF PRODUCT PROCESSED RAW WAFER WASTEWATER PRETREATED WEEK (POUNDS OF RAW PRODUCT FLOW FLOW* WASTEWATER 000 OR NUMBER OF CASES) (mgd) (mgd) (mg/1) (Ib/day) WEEK 1 MON TUE WED THU ` — FRI SAT SUN WEEKLY TOTALS WEEK 2 — ------•----------------------------------------------------------- MON TUE !— WED THU FRI SAT SON WEEKLY TOTALS WEEK 3 -- --------------------------------------------------------------- M ON TUE ""— WED - . — THU FRI SAT SUN WEEKLY TOTALS WEEK 4 -------------------------------------------------------------------------- MON TUE WED THU FRI SAT SON WEEKLY TOTALS *MEASURED OR ESTIMATED. I V--18 of the pretreatment system (pH control & DAN was discussed previously and is one of the primary variables which the operator can control. MASS OF BACTERIA IN THE BIOLOGICAL SYSTEM The total mass of bacteria in the aeratibn basin and the clarifier is the primary variable which the operator controls. The two primary means of adjusting the bacteria (solids) are: 1. Return Sludge - determines the distribution of solids between the aeration basin and the clarifier. 2. Waste Sludge - is the single most important controllable variable and determines the total mass of solids in the system. RETURN SLUDGE The appropriate return sludge flow rate depends on the influent flow rate, and consequently, on the rate at which mixed liquor is being discharged from the aeration basin to the clarifier (this rate is known as the mixed liquor flow rate or MLQ, which is equal to the Influent Flow Rate plus the Return Sludge Flow Rate. In Order to maintain an approximately constant level of solids (bacteria) in the aeration basin, the return sludge flow rate (RSQ) should consistently remain at approximately the same ratio to the influent flow rate (Q). It is impractical to maintain a constant RSQ to Q ratio (RSQ/Q) all of the time, without automatic control devices. Therefore, we adjust the RSQ based on the projected daily Q (which is based on the information provided by the' production supervisor, as IV-19 discussed under the previous heading in this section.) The RSQ also depends on two analytical Parameters, which are determined routinely. These parameters are: 1. Mixed Liquor Suspended Solids (MLSS), which is an indicator of the number of bacteria in the aeration basin. L 2. Return Sludge Suspended Solids (RSSS), which is an IIVL indicator of the number of bacteria in the sludge at the bottom of the clarifier The Return Sludge Flow Rate (RSQ) is regulated with the air valve (See FIGURE II1-4) on the return sludge pipe. Watch the discharge pipe to determine the correct flow. The return sludge pipe should run "1/3 of a full pipe full" in most cases. If the RSQ value is set too high, (a) the RSSS value will probably go down, (b) the MLSS value will increase, and (c) there will be a build-up of sludge in the bottom of the clarifier. If the RSQ is misadjusted, or if there is any doubt about the proper RSQ value, an RSQ value that is too high is preferable to one that is too low. If the RSQ value is set too low, the sludge in the clarifier bottom (the "sludge blanket") may build up so much that it goes out of the top of the clarifier with the effluent. WASTE SLUDGE The amount of sludge to be wasted each day depends on a value called "sludge age". Sludge age (SA) is simply defined as the average length of time that we allow sludge (bacteria) to remain in our biological system. (This is a simplification of all of the various factors that contribute to sludge age, such as IV-20 the bacterial growth rate and the food -to -bacteria ratio. (For those operators interested in a more detailed and exact explanation, reference texts are available.) Sludge age is selected based on certain characteristics of the biological system, as discussed in Section V. At the time this manual was written (without the benefit of applicable operating data), the appropriate sludge age was anticipated to be approximately 200ddaayys. Therefore, we consistently want to keep sludge in our biological system for an average of 20 days. We achieve this by removing 1i20 of the sludge from the system each day by wasting to the sludge digester. (Note: Wasting is performed only on days when the cannery is operating -- when we are "feeding" the bacteria.) Wastage is relative to the sludge (bacteria) at the bottom of the clarifier. The bacteria at the bottom of the clarifier are typically more concentrated (there are more bacteria per gallon, or per liter) than the bacteria in the aeration basin mixed liquor. Therefore, we need to waste a volume of sludge from the clarifier that contains the same mass (weight) of bacteria which is contained in 1120 the volume of the aeration basin. (Note: A 20-day sludge age is used here as a best first estimate. The waste treatment supervisor may direct the use of another sludge age, based on evaluation of the biological system performance.) The Sludge Wastage Worksheet illustrated in FIGURE IV-5 is the road -map to determining the IV-21 FIGURE IV-5 SLUDGE WASTAGE WORKSHEET 1. DATE: 2. ANALYTICAL INFORMATION (a) MLSS = mg/l (b) RSSS = mg/l (c) Eff. SS = mg/1 3. AERATION BASIN: Volume = mil, gal. for 60,000 gpd plant Volume = mil. gal. for 30,000 gpd plant 4. DESIRED SLUDGE AGE (SA) = days (from supervisor) 5. PROJECTED INFLUENT FLOW RATE • (0) for the day = days (from supervisor) 6. CALCULATE WASTE SLUDGE VOLUME: (a) x f _ MLSS 2a Volume (3-T SA 4 Gross Waste Index 6a (b) x = 00 Eff. SS (2—c7 Eff. Solids Index 6b (c) Gross Waste Index Eff. Solids Index Net Waste Index (6a) (6b) (60 (d) x 1.000,000 = gal. Net Waste Index (6c RSSS 2b Waste Volume 6d ' Refer to APPENDIX for a discussion of flow measurements. IV-22 correct sludge wastage volume. As illustrated in FIGURE IV-5, various analytical and measured data are required to calculate wastage. The MLSS and RSSS values are needed and also it is necessary to know how may suspended solids are leaving the system through the clarifier effluent (Eff. SS). These effluent solids (bacteria) are also part of our wastage -- although, they are unintentional and undesirable. In fact, if the effluent Suspended Solids values are consistently high, this typically indicates that not enough sludge wasting has occurred in a controlled manner. AERATION The four blowers (aerators) installed in the aerobic treatment plants (2 @ 15 H.P. for 60,000 gpd plant and 2 @ 5 H.P. for 30,000 gpd plant) are capable of supplying more than enough oxygen for the bacteria, if all four are run at the same time. Therefore, we conserve energy by only running one blower on each plant at any given time --- under normal circumstances. Operation of all 4 blowers may be necessary, however, to maintain the bacteria suspended in the basin. If the monitoring of the basin dissolved oxygen (D.O.), as discussed in Section V, ever indicates a D.O. value less than �i.5. mg/l, all 4 aerators should be run continuously until the D.O. value increases to 2.5 mg/l. PRACTICES TO BE FOLLOWED FOR PROPER OPERATION Every day the operator should check the plant to see that all equipment is running and to check tha clarifier. IV-23 Sludge, being heavier than water will normally settle to the hopper bottom. If the sludge pump (Return Sludge) is not returning at least "one-third of a pipe full" into the aeration tank, the slower movement of sludge will tend to allow the sludge to pack in the hopper bottom and pump intake. Finally the sludge begins to build up inside the pump tube until it is blocked completely. This may be remedied by shutting off the air supply to all other equipment and completely opening the air control valve to the airlift sludge pump. If the blockage isn't removed, then the pipe plug at the "tee" must be removed, and the horizontal discharge pipe closed off at the tee with a shop rag or plumber's stopper to divert the air downward through the vertical pump tube to backflush the airlift pump. The great volume of air should break up the solid mass which has built up. The chunks that rise to the top must be dipped back into the aeration tank or broken up into small pieces to be returned by the skimmer. REMEMBER - A clean, properly cared for plant means fewer repairs and more efficient operation. COMMON PROBLEMS AND PRACTICAL SOLUTIONS A) Motors will not run: (1) General power outage (2) Fuses blown - replace; reset circuit breaker (3) Motors overloaded - push reset button; check overload heaters if reset does not start motor. IV-24 B) Excessive foaming: "'? , P (1) Over aeration - reduce ru-nning time (2) Lack of solids - (usually found only during first few weeks of operation) (3) Excessive use of detergents - eliminate before they enter the plant. C) Equipment will not work on automatic: (1) Failure of time clock - have electrician check (2) Overload may be released - push re -set buttons. D) Spray system not working properly: (1) Spray pump motor not running - check power supply and push reset buttons. (2) Spray pump motor running but not pumping - pu11"=,pump=and: clean pump screen. (3) Spray pump pumping but sprays not operating properly - remove spray nozzles and clean. E) Sludge accumulation on top of settling tank: (1) Air-lift skimmer not returning (2) Sludge return pumps not returning or not returning enough - check hoppers for sludge build up. (3) Excessive amount of grease - check grease -tr-a-p--and._cleani if necessary; or, eliminate before entering- plant, F) Large quantities of solids going over effluent weir: (1) Sludge pumps not returning or not returning enough - check air lines and pump tube for blockage. (2) Plant overloaded - check sewage flow and volume and have raw sewage analyzed for B.O.D. and suspended solids. OPERATIONAL OBSERVATIONS AND TESTS In addition to the daily mechanical maintenance of the treatment plant, daily observations and tests of the degree of IV-25 treatment being given to the sewage should be made. An observation should be entered in the Operator's Log Book. By visual observation of a few key indicators, and the use of a few simple tests the operator can usually determine if an aeration plant is functioning properly and providing good treatment. Close observation should be given to the aeration tank, the settling tank;and the effluent. The aeration tank of a properly functioning plant will appear medium to dark brown in color with little or no foam or floating material on the surface. if the color is black or gray, the bacteria (or activated sludge floc) are either not receiving enough air or they are receiving too much sewage or a waste which is toxic to them. Foaming may occur in this tank when the plant is first put into operation and there is not enough sludge, or when the plant is overaerated; the foam control system will usually relieve this. A. Activated Sludge Volume Test One test which gives an indication of the degree of treatment being received is the sludge solids volume test. This test is a measure of the amount of activated sludge present to digest the sewage and the condition of this sludge. The test is largely a matter of experience and becomes a more useful tool after many samples have been observed. A sample is collected from the aeration chamber in one liter graduated 1V--26 cylinder while the plant is being aerated, and then allowed to stand perfectly still for thirty minutes. If a set of Imhoff cones or graduated cylinders is not available to perform the test in the standard manner, relatively satisfactory test vessels may be made from any tall straight - sided clear glass containers of at least one quart volume, such as a quart fruit jar. A uniformly divided scale from 0 to 10 (0% to 100%) should be firmly affixed to the side of the container and coated with wax or shellac to prevent its being readily washed off. The finished jar will look something Like the illustration in FIGURE IV-6. The sludge solids volume is the percentage of the total sample volume which is occupied by the sludge. A well functioning plant will have a sludge volume of thirty percent to fifty percent which has the appearance of very small particles of dark brown sponge. A low solids volume would usually indicate a newly installed plant or a previous major loss of sludge in the effluent; aeration time should be cut to the minimum amount required for proper operation. A high solids volume may indicate a high or excess sewage load; this can possibly be corrected by a slight increase in aeration time or by wasting sludge to the sludge holding tank. The settling tank of a properly operating plant should appear clear to a depth of eighteen to thirty-six inches below IV-27 CLEAR LIGHT THICK LOATING SOLIDS SUPERNATANT SETTLED SLUDGE FIGURE IV-8. EXAMPLE OF 8ETTLEOMETER IV-28 water surface, with a blanket of sludge visible below this level; there should be little floating material on the surface. The effluent liquid should appear almost crystal clear with no murkiness, or solid particles. If there are large pieces of floating sludges on the surface and in the effluent, it maybe caused by supplying too much air. If the plant has fine particles of sludge floating just below the surface in the effluent, it may be slightly under - aerated or is receiving toxic material in the incoming sewage. Excessive amounts of grease or cooking oil will cause this condition and may cause the sludge to become yellow in color and produce foam. If large amounts of grease collect on the surface of the settling tank, it should be removed and disposed of. S. Dissolved Oxygen (D.O.) Test Another test which is a useful indicator of plant operation is the dissolved oxygen test. This test is performed by testing a sample of the effluent and the aeration tank liquid with a dissolved oxygen test meter. The results are expressed as parts per million of dissolved oxygen; this is a measure of the oxygen or air available for use by the activated sludge (bacteria). A normal operating plant should have dissolved oxygen content of at least 1.0 ppm in the effluent and 1 to 2 ppm in the aeration tank. IV-29 C. pH Test Basically, the pH test is one which measures the acidity or causticity of the liquid in the aeration chamber, as discussed previously. A normally operating domestic sewage treatment plant should have a pH of between 6.5 and 8.0. The bacteria' responsible for the digestion of sewage cannot normally live and grow if the pH is not in this range. A pH reading outside this range indicates either (1) that the plant is septic; or (2) acidic or caustic wastes are being emptied into the plant; these should be stopped before they enter the plant. D. Chlorine Residual Test The principal reason for chlorination of sewage effluent is for disinfection. Sewage treatment may not completely remove the pathogenic (disease -causing) bacteria which may be present. The chlorine residual is measured by using a color comparator. When effluents are discharged to bodies of water which are, or may be used as a source of public water supply, or for recreational purposes, chlorination to kill harmful bacteria will require a chlorine residual of greater than 0.5 ppm. This residual must be the minimum maintained in the effluent. If the test results show less than this, increase the rate of chlorine feed or the strength of the solution (for hypochlorination). A dose of 8 ppm free chlorine should produce a chlorine residual of 0.5 ppm or more in a normally operating plant. IV-30 The essential elements of the operation and management of the spray irrigation program include the following: 1) Operations of the Lucks Wastewater Treatment Plant to ensure that the treated wastewater and sludge are adequately stabilized and monitored to meet the requirements for land application. 2) The design, operation, management, and maintenance of the application site and equipment to minimize potential nuisance and health problems. 3) Monitoring and Reporting - monitoring of sludge generation and analyses of sludge, soil, plant, surface water, and ground water as needed for compliance with stipulations, standards, and regulatory requirements. 4) Recordkeeping - adequate documenting of program activities, monitoring, etc. 5) Health and Safety - necessary steps must be routinely employed to protect the general public, operations personnel, etc. NUISANCE ISSUES Minimizing adverse aesthetic impacts of a spray application system will aid in maintaining public acceptance of the project. Continuous efforts should be made to avoid or reduce nuisance problems associates with waste water application, and related operations. Potential nuisances of concern include noise, odor, spillage, mud and dust. LUCK'S, Inc. Wastewater Spray Irrigation management systems should consider objectionable odor as a potential problem. Objectionable odor could result in an unfavorable public reaction and reduced acceptance of land application options. Potential IV-31 for odors can be reduced or eliminated by the following: 1) Proper sludge stabilization at the Wastewater Treatment Plant,and/or a defined procedure for managing sludge which is not properly stabilized, e.g., additional treatment, alternate disposal means, etc. 2) Daily cleaning (or more frequently, if needed) of trucks, tanks and other equipment. 3) Avoiding application to waterlogged soils, or other soil or slope conditions which would cause ponding or poor drainage of the applied sludge. 4) Use of proper application rates for application site conditions. 5) Isolation of the sludge application site(s) from residential, commercial and other public access areas. Prevention of odor problems using the recommendations listed above is important to spray application programs. If, and when, odor problems resulting in citizen complaints do occur, the management should have established procedures for correcting the problems and responding to complaints. HEALTH CONCERNS A detailed discussion of pathogens and vectors which may be associated with sewage sludge is contained in the literature. Although bacteria, viruses, and parasites are generally present in sludge, studies conducted through 1982 by the EPA, and others, have shown no significant health problems for personnel who experience regular contact with sewage sludge at sewage treatment plants and/or sludge to land application sites. Furthermore, epidemiological studies have shown no significant health problems IV-32 to humans associated with living or working in proximity to sites receiving land application of sludge or wastewater. A. Personnel Health Safeguards Plant management should include health sagefuards for personnel involved with wastewater and sludge transport and handling, as follows: 1) Receive regular typhoid and tetanus inoculations and v poliovirus and adenovirus vaccinations. 2) Limit direct contact with aerosols as much as possible when liquid application techniques are being used. 3) Encourage proper personal hygiene. 4) Provide annual employee health checkups. 5) Record reported employee illnesses, and if a pattern (trend) develops of illnesses potentially associated with sludge and wastewater pathogens, investigate and take appropriate action. s' ti Jf MONITORING The sludge parameters to be analyzed will vary depending on such factors as system size, historical sludge variability, type of land application option used, and regulatory agency requirements. Generally, as a minimum, sludge will be analyzed for pH, percent solids, N, P, K, and the heavy metals. A. Soil Monitoring In general, routine annual soil tests will provide the data required for monitoring purposes. IV-33 F' Y V B. Vegetation Monitoring Periodic analysis of the harvested portions of crops grown on the sludge -treated soil will aid in preventing accumulation of potentially phytotoxic materials. Vegetation monitoring will also signal the approach of increased levels well in advance of permanent damage to either soil or crop. Plants can also serve as effective indicators of excessive or insufficient levels for many soil constituents. The need for, and frequency of, vegetation me nitoring will vary depending on system specific factors. Generally, the crop should be tested prior to harvesting for human or animal consumption. Ground Water Monitoring If ground water monitoring is needed, a hydrogeologist should be consulted during the initiation and implementation of a ground water monitoring program. Systems which apply wastewater at low rates for agriculture generally do not monitor ground water quality. Conversely, dedicated land disposal sites are usually required to monitor ground water quality by the cognizant regulatory agency. If the forest land or land reclamation option is being utilized, ground water monitoring will probably be required for these application sites which could affect sensitive aquifers, e.g., the decision is made on a case -by -case basis by the operating agency and/or regulatory agency. IV-34 GRASS TYPES Grasses suitable for use in Spray Irrigation systems are described in Table I11-1. Additonal information on these grasses can be found in various references on forage grasses. The primary purpose of the vegetation in a spray irrigation system is to facilitate the treatment of wastewater. The market value of the crop is only of secondary importance. If a grass will not grow under a particular set of conditions, no matter what its other desirable characteristics, it is of no benefit. The most common grasses used on spray irrigation systems have been Reed Canary Grass and various Bermuda Grass varieties.T.� OPERATING-CONTEQL STRATEGIES AND-TE-CHNIQUES Currently, the process operating mode involves directing the Process Waste Stream (after pretreatment) and the Sanitary Waste Stream to their respective aerobic biological wastewater treatment plants. The organic solids and liquids are converted to biological solids (mixed liquor) with the resultant mixture being transferred to the Storage Lagoon. There is little flexibility in the LUCKS Wastewater Treatment System to allow for separation and segregation of the biological solids generated. Although both the treatment plants have integral clarifiers, the only available place to waste sludge is to the S1udgd "Plt-(See FIGURE III-2) ,w-fish a_ n ap e�c ate tam f QD- gallops. Therefore, with the very limited sludge storage available, the biological solids generated (converted organic liquids and I v- 3'5 ca 10 .1; O •r-i .[4Hri +� O ra ;E; 4 m W m U W m 4 tl� O +' a a* N m U 0 a) ((jj f 0 U o_ o 0 m N N O O O O a Ln N a% w ko n r- r N 0 W Cf 41 a) m m m m m m U U O 0 O O O 0 c9 .a m 02 w .0 r-! r♦ ri r-i r-i Cd Cd c cd •ri 00 GS F7 ti i ti w c. w a w m m 1 ti ami to m D� O r01 � ��•+ m m �1 4 + Imo A, cxs a m ofl O m A rat d�� � �i PO-V a 9 Fi W E-i Ai L4 W O a1 "t W N N O O O O to TJ •ri Id 10 P4 U O m m m m A ro O O 0 O 0 m P m r-I H r-4 H (d a1 ca 0 v � GI 41 w a, w w U rd a O � O Na) C3 U1 as p 0 � r4 0 m L) U p b O ..-•I 4J U 0 r-k r•i U pq O 14 00 O w O 4-3 ao A I~ 0 U U 9d l` Z Q t Q s s t IL m Q D W a� s 0 i1J ...1 m t r m W. to m t solids) are being sent directly to the Storage Pond, and subsequently spray irrigated. This mode of operation is detrimental for two reasons. First, the biological solids are living organisms and are likely to cause significant odor problems both in the Storage Pond and on the Spray Irrigation Sites. The biological solids must be stabilized (digested) prior to land application. Secondly, the biological solids will cause "blinding" of the spray irrigation sites reducing their useful season and again cause odor problems. With the inherent flexibility in the existing wastewater treatment system (and/or minor modifications/upgradings in some instances) several control strategies are presented. The most appropriate and most cost effective alternative (or combination) should be determined by the plant manager and the treatment plant operator. Several control strategies/modes of operation are discussed in the following paragraphs. The advantages and disadvantages of each process set-up are discussed. Each operating mode shown is presented with the idea of being able to segregate and subsequently stabilize the biological solids generated. FIGURE IV-7 schematically depicts the three options described subsequently. OPTION I. Option I involves pretreating the Process Wastestream (screening and DAF) and combining it with the Sanitary IV-37 OPTION-1. PROCESS STREAM OAF 60,o00 EFFLUENT SPRAY gpd TORAGE IRRIGATION PLANT T— BASIN SANITARY � STREAM •.— z WI � O Z- a ►w i a 30,000 gpd _ PLANT (USE AS AEROBIC DIGESTER) OPTION-11. P_ ROCESS ' OAF 60,000 gpd STREAM PLANT �'• �', r SPRAY STORAGE IRRIGATION BASIN _ 30,000 gpd CHLORINE PLANT CHAMBER 1 4 � i f a ,z a AEROBIC DIGESTED DIGESTER ' SLUDGE OPTION-111. PROCESS STREAM DAF ll 60,000 gpd 1—i PLANT SANITARY. © CHLORINE CHAMBER ISCHARGE STREAM J fS 30,000 gpd "' AM PLANT PSPRAY IRRIGATION 0 AEROBIC DIGESTER) FIGURE IV--7. SUMMARY OF ALTERNATIVE OPERATING STRATEGIES Wastestream and treating both streams in the 60,000 gpd aerobic treatment plant. The excess biological sludge generated would be sent to the 30,000 gpd plant which would be utilized as an aerobic digester. Supernatant (basically clear water) could then either be returned to influent of the 60,000 gpd plant for additional treatment or sent directly to the storage pond. After an appropriate stabilization period, small quantities of digested sludge could be sent to the sludge pond for spray irrigation. The advantages of this mode of operation is that very little modification to the existing treatment system would be required. However a determination would be required to insure that adequate treatment and aeration capacity were available. OPTION II This mode of operation would entail little or no change from the current operating practices. However, it would require the construction of an aerobic digester, with adequate aeration and mixing capacities. Excess biological sludges from the Domestic and Process Treatment Plants would be wasted to the aerobic digester, with the supernatant being divided proportionally and returned to the two plants. The digested sludge (stabilized and odorless) would then be mixed with the treated effluent and sprayed on the irrigation sites. This option has the advantage of insuring that both adequate treatment and adequate digestion capacities are available, and would allow each process to be optimized. Iv-39 OPTION III Option III is probably the least desirable of the alternatives discussed. However, this plan of operation has the advantage of requiring only minor additional construction. The additional construction involves enlarging the Chlorine Contact Chamber so as to provide a 30 minute detention time for the combined Process and Sanitary Waste Streams. This mode of operation involves treating the two waste streams, separately, (as is currently being done) the combining the treated effluents, adding chlorine and discharging them to the stream that flows through the site. It would be necessary to obtain an NPDES Discharge Permit, and then operate the treatment units so as to produce an effluent in compliance with the Permit Limitations. The existing storage basin would be utilized as a sludge storage lagoon/aerobic digester. The digested sludge would be disposed of periodically, by spraying on the irrigation sites. OTHER OPTIONS Regardless of the operating strategy chosen there are several operational improvements/techniques that should be considered by LUCK'S, Inc. operating personnel. These are: 1) Provide mixing in the Storage Pond. This would preclude solids deposition and also 'help reduce the odor problems experienced. 2) Investigate the possibility of adding lime and/or gypsum directly to the storage pond and theJ4 using the existing pumping and spray system to disperse the lime IV -CEO 3) (gpysum). This the year. This sites by tractor could be applied would eliminate t and lime spreader. routinely throughout he need to lime the Water conservation practices in the cannery would significantly reduce the wastewater treatment systems operations cost. Areas to be evaluated include alternative operating modes (in the cannery) and employee education about water usage. TV-41 SECTION V MONITORING THE BIOLOGICAL TREATMENT PROCESS Information about. the biological system is absolutely necessary to controlling the system. In Section IV, information was needed about the quality of the influent wastewater, about suspended solids at several places in the system, and about dissolved oxygen (D.O.). This information was needed in order to perform control operations. Information is also required to tell us if the control operations are having the desired effect. The monitoring program described in this section includes laboratory analyses, field measurements, and visual observations. Example data sheets to record and maintain these data are presented in APPENDIX C. ,;41 fs AM The recommended schedule of laboratory analyses is presented in TABLE V--1. This schedule of analyses are those necessary for proper control of the biological system and the spray irrigation system and sites. The analyses necessary in controlling the system are discussed below. Filtered and unfiltered BOD's of the pretreatment system effluent are necessary in evaluating the efficiency of the bacteria in eating the "food" (which is measured by BOD). The filtered COD values of the pretreatment system effluent and clarifier effluent are the most timely indicators of how the V-1 TABLE V-1 RECOMMENDED SCHEDULE OF LABORATORY ANALYSES LOCATION ANALYSES FREQUENCY TYPE SAMPLE(1� PROCESS WASTE STREAM INFLUENT BOOS, 9005 filtered 1/MONTH, C COD, COD filtered TSS, Oil & Grease NH4-N EFFLUENT FROM DAF Oil & Grease, TSS 1/MONTH C BOO5, COD WWTP AERATION BASIN SS 1/WEEK G EFFLUENT FROM WWTP BOO5, COD, SS 1/MONTH C PO4-P, NH4-N SANITARY WASTE STREAM INFLUENT BOB5, BOO filtered 1/MONTH C COD, COD filterer TSS, Oil & Grease WWTP AERATION BASIN TSS 1/WEEK G EFFLUENT FROM WWTP Oil & Grease, TSS 1/MONTH C BOD5, COD STORAGE POND EFFLUENT 80051 COD, TSS, 1/MONTH C Oil & Grease, NH4-N Metals Analyses 1/6 MONTHS C SPRAY IRRIGATION SITES Sails Analyses 1/6 MONTHS G Vegetation Analyses 1/CROP GROWN G (1) C = 24-hour composite or composite of 4 grab samples collected @ 6 hour intervals. G = Grab Sample. V-2 system is performing. After a period of BOD and COD data collection, a reasonable BOD/COD correlation may be determined, which will make the COD values even more useful in a timely manner. The TSS (total suspended solids) values are needed to determine the required return sludge and waste sludge adjustments in controlling the system. The clarifier effluent TSS is also a prime indicator of the effectiveness of the return and waste sludge control adjustments. The TSS (total suspended solids) value of the mixed liquor (MLSS) is an indicator of the sludge age. The ammonia -nitrogen (NH4-N) and phosphate -phosphorus (PO4-P) values are determined occasionally to assure that there are adequate amounts of these substances for the bacteria. Bacteria need small amounts of these substances (approximately 0.5 to 1 mg/1) to remain healthy. The NH4-N and PO4-P may be generally considered similar to vitamins for the bacteria. FIELD MEASUREMENT5 The recommended field measurements (to be performed by the operator) are listed in TABLE V-2. Dissolved oxygen (D.O.), temperature, and pH of the mixed liquor are all measured directly in the aeration basin, with instruments suitable for field use. The measurements are made from the top of the outlet structure. The D.O. value indicates that the bacteria have enough oxygen to "breathe." The value typically is higher in cold weather than in V-3 TABLE V-2 RECOMMENDED FIELD MEASUREMENTS MEASUREMENT LOCATION FREQUENCY Flow Measurements System Influents 2x/shift System Eff1uents 2x/shift D.O. In the aeration basins Daily Clarifier effluent Daily Settling pond Daily Temperature In the aeration basin Daily Settling pond Daily PH In the aeration basin Daily System influents Daily Clarifier effluents Daily Settling pond Daily Chlorine Residual Effluent from chlorine contact chamber Daily ZSV Mixed liquor sample from the aeration basins 2x/week Settled Volume Mixed liquor sample from the aeration basins 2x/week Oxygen Uptake Rate Mixed liquor sample from the aeration basins 2x/week Sludge Blanket Depth In the clarifiers Ix/shift V _A hot weather, which is why the temperature is measured. If the D.O. value is less than 1.5 mg/l, and all 4 blowers (aerators) are running, decreasing the sludge age (increasing wastage) may be recommended by the treatment supervisor. The pfi value of the mixed liquor is typipally pH 6.5 to pH 8.0. If the mixed liquor pH value is outside this range, the treatment supervisor should be notified, and adjustments should be made immediately. The Zone Settling Velocity (ZSV) Test is an important indicator of how well the bacteria are settling from the water. The procedure for the test is contained in APPENDIX A. If the ZSV value decreases, the bacteria are not settling as quickly from the treated wastewater. The mixed liquor discharge to the clarifier may need to be reduced to keep too many solids from leaving the clarifier effluent. The ZSV value is related to sludge age and other factors, such as temperature, and NH4-N. It may be considered as an indicator of the relative "health" of the bacteria over time. When the ZSV test is completed, the settled bacteria occupy a certain volume in the bottom of the test cyclinder. This is similar to what happens in the clarifier. The settled sludge volume in the cylinder is an indicator of how thick we can expect the return sludge to be. If the cylinder volume increases over time, we need to closely watch that we are returning enough sludge from the clarifier, so the sludge blanket does not get too V-5 close to the effluent weir. (The settled volume procedure as described previously is similar to the Sludge Volume Index, SVI, procedure. SVI is a standard wastewater treatment parameter, which may be performed instead of the settled volume described here. The SVI procedure -is presented in APPENDIX A.) The supernatant in the ZSV test cylinder also is an indicator of how well the clarifier is working. If a lot of solids remain in the cylinder supernatant, the Eff. SS should be watched closely. This condition could indicate that the sludge age needs to be adjusted. The oxygen uptake rate (OUR) is a relative measure of how active the bacteria are. Under conditions of high food loading, and/or low sludge the OUR should be higher than when the food loading is low, and/or the sludge age is high. By monitoring OUR over a period of time, the operator has another useful indication of the health of the biological system. OUR should also be run more frequently any time that the system does not appear to be operating properly. The once per shift clarifier sludge blanket depth measurement is perhaps the most timely indicator that we have of the correctness of our return sludge and waste sludge control procedures. Devices to measure sludge blanket depth are commercially available (such as the "Sludge Judge" [TM7. Similar devices may be constructed in-house with clear vinyl hose or clear PVC pipe with at least 3/4-inch inside diameter. The hose V-6 or pipe is calibrated in 6-inch intervals, and a foot or check valve is installed at one end. If the sludge blanket level increases, and the ZSV and settled volume values do not indicate changes in the sludge settling characteristics, then the RSQ may be set too low. If the RSQ is at the maximum acceptable value, without causing too much turbulence in the clarifier nor exceeding the return sludge pump's capacity, then the sludge age is too old. In this case, wastage should be increased to lower the sludge age. VISUAL OBSERVATIONS Visual observations of the treatment system by the operator are very important to evaluating the "health" of the biological system. The operator is with the system everyday and, therefore, becomes familiar with "normal" conditions, such as the following: 1. Mixed liquor color. 2. Amount of foam on the aeration basin. 3. Odors 4. Aerator (blowers) spray patterns. (If the pattern appears unusual, measure the amperage draw of the blower motor and take appropriate action as indicated by this value.) 5. Relative appearance of the supernatant in the clarifier. 6. Amount of grease on the aeration basin and clarifier. 7. Clarifier effluent turbidity. 8. Return sludge color and odor. 9. Storage pond color and odor. V--7 The operator records any changes in the above conditions and others he may recognize. The Operator's Logbook is where this information is recorded, along with other observations which could affect the system, such as rain and ambient temperature. If problems ever develop with the biological system, then the log is used in conjunction with the laboratory analyses and field measurements to develop a complete picture of the period preceding the problem. R-Q TINE MAINJEN,ANCE Maintenance and housekeeping are important factors in the physical operation of the treatment system. If the physical facilities of the system breakdown, then it is quite likely that the "health" of the bacteria will be affected. Some general and specific items of routine maintenance and housekeeping include the following: 1. The preventive maintenance procedures recommended by the manufacturers should be adhered to for all mechanical and electronic equipment. 2. Lubrication of all valves (even those not currently in normal use) should be performed weekly. 3. The outlet structure, clarifiers, sludge pit, and effluent pit should be cleaned by hosing daily to remove accumulated grease and slime. 4. Slime should be brushed from the aeration basin, clarifier and associated piping as needed. 5. Grass and weeds should be kept closely trimmed around the basins and Sludge Storage Pond. APPENDIX A PROCEDURES FOR: o ZONE SETTLING VELOCITY o SLUDGE VOLUME INDEX o OXYGEN UPTAKE o JAR TEST Apparatus A. Graduated cylinders, 1-liter glass. B. Zone settling apparatus; cf. Part VI and Figure I. C. Stopwatch. IV. Procedure for ZSV A. Collect a sample of chemical sludge or mixed liquors. B. Fill a l-liter cylinder with the sludge and mix well by up and down movement of the rake. Record the surface level in the cylinder (Figure 2). C. Suspend the rake in the cylinder from a 4 to 6 rph motor and start the stopwatch. 0. Record the interface height in ml every 30 seconds for 2 minutes, then every minute for the next 8 minutes and every 2 to 10 minutes thereafter, depending on the rate of descent. The time intervals may be varied on the basis of experience wath sludge, but the ZSV test should cover at least 15 minutes of settling. For deeply colored wastewaters, strong backlighting may be necessary to expose the interface. V. Calculation of ZSV A. Plot interface height in ml against time, as in Figure 3. B. Derive the slope from the straight-line portion of the plot. FIG. 1. ZONE SETTLING APPARATUS Waste Description Pe r'0d C0ru �1 Date /.:7 /7 F. 2. ZONE SETTLING VELOCITY UNIT 1 2 3 4 5 G Time o .5 z q90 1 do � S5 F0 f G30 7 ID !� 0 0 13 s0 ZSV (ml/min) 76-' ZSV (ft/hr) ib 1.57 O SLUDGE VOLUME INDEX 14LSS (mg/1) oZ D© Settled Sl edge (ml) 160, Sludoe Vol. Index 0 FIGURE 2. SA14PLE ZSV DATA SHEET 1,000 900 Boo 700 i= 0 400 tl3 300 200 1oc c 0 Z a 6 8 10 12 14 TIME (min) FIG. 3. ZSV PLOT slope a ZSV in ml/min C. Using the conversion factor determined for the 1-liter cylinder, compute ZSV in ft/hr. ZSV f x slope) x 60 1, 000 a Example (from Figures 2 and 3) slope = f ZSV 630 - 330 ,. 75 ml/min 4 1.12 ft/1 (see Part VI-C) 1.12 x 75 x 60 _ 5.0 ft/hr 1, 000 VI. Construction of ZSV Apparatus A. Construction of Rakes Raises consist of three, 1/8 in. diameter stainless steel rods 18 in. long welded at each end to the corners of stainless steel traingles, 2 in. on a side, as shown in Figure 1. A hook is welded to the top. pimensicns are not critical. B. Rake Motor The rake motor is a Mallory M 360M electric motor, rated 6 rph, or a Mallory M 240M, rated 4 rph, with a wire hook soldered or welded to the shaft, as in Figure 1. Several motors may be mounted on a 3/8 in. plywood strip. C. Cylinders Not all cylinders have the same dimensions. The depth of the cylinder from the 0 ml to the 1,000 ml mark should be measured and, for consistency, identical cylinders should be used in any, one series of tests. Example: depth from 0 to 1,000 ml - 13 1/2 in. f=1.12ft/l VII. procedure for SVI A. Collect a sample of chemical sludge or mixed liquors. B. Fill a 1-liter graduated cylinder to the 1-liter marls. Mix well, then remove stirrer. C. Record interface level after 30 min, as in Figure 2. VI I I. Calculation of SVI A. For ]-liter sample: SVI volume settled sludae x 1,000 55 concentration B. For other than 1-liter sample, multiply the number calculated above by 1,000/sample volume, ml. Example (from Figure 2) Volume sample 1,000 ml Volume settled sludge 100 ml MLSS 2,500 mg/1 SVI 1 - 2— 00 x 1,000 a 40 ml/g 02 UPTAKE PURPOSE Determine amount of oxygen utilized by a unit weight of micro- organisms In a certain time interval. EQUIPMENT 1. BOD bottle 2. D.O. probe (YSI Model 54 or equivalent). 3. Recorder (optional) 4. Stop watch 5. Aar supply 6. Air diffuser PROCEDURE 1. Collect mixed liquor sample. 2. Aerate sample to 5 to 7 mg/l D.O. 3. Pour sample into the BOO bottle. 4. Insert probe in bottle (make sure no air bubbles are trapped in bottle). 5. a. Without recorder - record oxygen level versus time to develop the oxygen depletion graph. The scope of this line is the oxygen uptake in mg 02/1-min. b. With recorder - take slope of chart to obtain oxygen uptake in mg 02/1-min. b. Aetermine VSS of sample in mg/l. 7. Calculate oxygen uptake in g 02/g VSS/day by the calculation shown below: Mg 0,/l-mint Mg V55/3 x 1.440 g 02/g VSS/day JAR TEST TO DETERMINE OPTIMUM CHEMICAL DOSAGE If a chemical is used, in most cases a Polymer, this test will determine the proportionate amount of chemical to use to obtain a well defined floc with good settling and clarity qualities yet keep dosage to a minimum. 1. Set up six (6) beakers each containing 500 ml of return sludge to be wasted. 2. Add polymer solution of recommended concentration to all breakers as follows: 1st beaker add 1 ml of polymer solution 2nd beaker add 2 ml of polymer solution 3rd beaker add 3 ml of polymer solution 4th beaker add 4 ml of polymer solution 5th beaker add 5 ml of polymer solution 6th beaker add 6 ml of polymer solution 3. Place one beaker under each stirrer of a gang stirrer such as a Phipps —Bird unit. Adjust paddle speed to 100 RPM. Stir for 60 seconds. 4. Shut off stirrers and allow the sludge to settle for one minute. 5. Observe to determine the lowest dose that will achieve good results. Excess flotation aids have no benefit to the process. 6. Note the amount of chemical to produce the best floc. Then calculate the ration of sludge volume to chemical volume: m.L_ cnemzcai ml sludge Using the daily sludge flow, determine the daily chemical addition as a ratio. But, start initially by using about 1 112 times the amount of the calculated ratio. This ratio can then be reduced to optimum as the plant operates. APPENDIX D o PREPARATION OF CHLORINE SOLUTIONS o PROCEDURE FOR DETERMINING FLOW OVER A RECTANGULAR WEIR o METRIC SYSTEM REFERENCE AND CONVERSION CHART PREPARATION OF CHLORINE SOLUTIONS Sodium Hypochlorite Chlorination (Liquid): A polyethylene tank should be used in mixing and storing sodium hypochlorite; do not use metallic containers. Sodium Hypochlorite is available at most local grocery stores in the form of household laundry bleach. This bleach is usually 5.25% chlorine by weight. Commercial brands of bleach are also available, with a strength of 10% to 12% chlorine. TABLE A is based on the 5.25% solution. If the 10% to 12% solution is used, divide the required number of pints of bleach shown in the table by 2. TABLE A reflects the number of pints of Sodium Hypochlorite (5.25% hypochlorite) that are to be mixed with 10 gallons of water in order to provide a one part per million dosage at various rates of flow. If more than one part per million is required, multiply the number of pants in TABLE A by the number of parts required. TABLE A is only an approximation; residual should be checked to determine if a higher or lower feed rate is required. TABLE A (Liquid Chlorine) e.r,,,.. Gallons of Chlorine Solution Pumped per 24 Hours Flow (dpw 2 5 10 15 20 25 30 2.000 1.5 .75 .5 .25 5.000 3.5 1.5 .75 .5 .25 10.000 6.75 2.75 1.5 1.0 .75 .5 .5 15,000 10.0 4,0 2.0 1.5 1.0 .75 .75 20,000 14.5 5.75 2.75 2.0 1.5 1.25 1.0 30.000 21,0 8.25 4.25 2,75 2.25 2.0 1.5 40,000 27.5 11.25 5.5 4.0 1.0 2.5 20 50.00❑ 34.5 13.75 7.0 4.5 3.5 3.0 2.25 Pints of Sodium Hypochlurile to be mixed with 10 Rallons of water lbased on 5% liquid chlorine). If a solution batch of more than 10 gallons is to be made, use the following formula: 10 x N = Pints of bleach required where: G = No. pints of bleach from TABLE A.- N = Gallons of solution to be made. CAUTION: No more than one week's supply of solution should be mixed at a time. A batch standing b or 7 days becomes weak. Calcium Hypochlorite Chlorination (Powder): Calcium Hypochlorite must be dissolved in a polyethylene tank and be allowed to settle for period of four to six hours. After settling, the clear fluid should be decanted (siphoned) into another clean crock or tank which will act as the pump supply. In preparing a one part per million solution, the following table will apply: TABLE B (Powdered or Tablet Chlorine) Ounces of Chemical To Be Mixed With 10 Gallons of Water. Gallons of Chlorine Solution Pumped per 24 Hours Flow (010) 2 5 10 1 15 20 25 30 7.000 1.25 .5 .25 5.000 3.5 1.5 .75 .5 .5 .5 .5 10.000 7.5 3.0 1.5 1.25 .75 .75 .5 15.000 5.25 4.5 2.25 1.75 1.25 1.0 .75 20.000 13.75 5.5 2.75 2.25 1.5 1.5 1.25 30.000 21.5 8.5 4.5 3.25 2.25 2.0 1.75 40.000 28.75 11.5 5.75 4.25 2.75 2.5 2.25 50.000 35.0 14.0 7.0 5.25 3.5 3.25 2.75 TABLE B may be used as a guide for mixing suitable solutions, multiply the weight indicated by the number of ppm dosage required. It is suggested that a "soft" water (such .as rain water or water that has been treated by a softening agent) be used in preparing Sodium Hypochlorite or other solutions. PROCEDURE FOR DETERMINING FLOW OVER A RECTANGULAR WEIR It = Approx. 118 In. Point to Measure Head Drawdown� Crest �-f+rlaxlmuin de _ -- - =- `,`l1 at pe Minimum 3-4H y' Ventilation an Cresl Height, Minimum Weir Plate ' 2-3H Channel Floor FORMULA: 0=3.33 (L—O.2H)H1•5 2Hinnx L Minimum Crest length s -.— Hmax 2timax Minimum WHERE: 0 = Flow Rate, cubic feet per second H = Head on weir, feet L = Crest length of weir, feet Gallons per second = CFS x 7.48i Million gallons per day = CFS x 0.6463 EXAMPLE CALCULATIONS: Assume a HEAD (H) of 611 going across a 44" Length (L) weir (weir length for Process WWTP @ Splitter Box 1) 6"=0.5 ft= H 44" 3.67 ft = L 0, cfs = 3.33 [L — 0.2H] H1.5 = 3.33 (3.67 — 0.2(.5)j 0.51'5 = 4.203 cubic feet per second = 4.203 x 7.481 = 31.44 gallons per second = 4.203 x 0.6463 = 2.716 million gallons per day METRIC SYSTEM REFERENCE THERE 411E THA(E BASIC METRIC UNITS AND THEY ARE: METERS WHICH MEASURE LENGTH; GRAMS WHICH MEASURE WEIGHT (MASS); AND LITERS WHICH MEASURE VOLUME OR CAPACITY. THE METRIC SYSTEM 15 BASED ON THE HOMBER 10 WITH PREFIXES TO SPECIFY THE MULTIPLE OR FRACTION OF THE BASIC UNIT. THE PREFIXES COMMONLY USED ARE: Prefix, Multiplier Prefix- Multiplier mega. M I,DOO.000 deci, d D.1 kilo, k 1.000 centl, c 0.01 hecto, h 100 m1111, m ,0.001 j deca, da 10 Micro, v 0.000001 CONVERSION FACTORS ENGLISH UNIT SYMBOL ENGLSHMEiTRICTO MULTIPLY BY MENGL15H0 MULTIPLY BY METRIC UNITS SYMBOL acre ac 4046.9 0.00024111 square meters m acre-feet acre-ft 1233.S 0.0008107 Cubit meters M3 cubic feet Cu ft 0.02832 35.315 cubic meters m3 cubic Feet cu ft 28.32 O,Q35315 liters I Cubic fee t/goI Ian Cu ft/gal 1.482 0.0001336 1iters/cublt meter ilm3 cubic feet/pound Cu ft/lb 0.06243 16.02 cubic meters/kilogram m3/kg Cubic yard cu yd 0.7646 1.308 cubic meters B3 feet ft 0.3048 3.281 meters m gallon gal 3.785 0,2642 liters I gallon gal 0.003785 264.2 Cubic meters mi gallon per day/sq foot gpd/sq ft 0.04074 24.55 cubic meter/Sq meter per day B3/m2•d gallon per minute gpm 0.06308 15.85 liters per second I/s gallon per minute/sq foot gpm/sq ft 0.67902 1.473 liters/sq meter per second l/s2•s pound lb 0.4536 2.205 kilograms kg pounds/1.000 cubic feet lb/1,000 sq ft 16.02 0.06243 grams/cubic meter g/m3 pound/day/cubic font 1b/day/cu ft 16.02 O.Ofi243 kilograms/tu meter per day kg/*3•d ISound/million gallon lb/wii gal 0.119E 8.344 grams/cubic meter 9/m3 million gallon mil gal 3785.0 0.0002642 Cubic meters m3 million gallons/day mgd 3785.0 0.0002642 cubic meters/day m3/day million gallons/day mgd 0.0430 72.83 cubit meters/second m3/s poundsfcublC foot pcf 16.02 0.06243 kilograms/cub lc meter k3rm3 pounds/square foot pSf 4,882 0.2048 kilograms/Square meter kg/m2 poundslsauara inch psi 0.0703 14.22 kilagrams Force/sq centimeter kg F/cm2 square feet Sq ft 0.0929 10.24 square meter m2 Square inch It; In 645.2 0.00155 square millimeter mm2 RECOMMENDED WASTEWATER UNITS OF EXPRESSION DESCRIPTION ENGLISH UNIT METRIC UNIT Wastewater Flaw gallons per day, cubit feet per second cubic meters per second Billion gallons per day cubit meter per day gallons per minute liters per second Hydrautic toading gallons per day per square foot of surface area cubic meters per day per Square meter of surface area Organic Loading pounds of SODS (or COD) applied per day per thousand kilograms of Boos (or COD) applied per day per cubic cubic feet of volume meter of valume pounds of BOD5 (or COD? applied per day per pound of kiiograms_of B005 (or COD) applied per day per kilogram ■Ixed Itquor volatile suspended solids (MLYSS)under MLYSS under aeraion aeration Aeration Period hours of detention In aeration tank excluding same as English units return sludge (RAS) flows Air Requirement cubic feet of air per pound of 9005 (or Coal removed cubit meters of air per kilogram of BUDS (or COD) removed Cubic feet of air per gallon of wastewater treated Liters of air per cubic meter of wastewater treated cubit meters per Second or liters per second Air Flow Cubic feet per minute volume Billion gallons, cubic feet, or gallons cubic meters or liters APPENDIX C EXAMPLE DATA SHEETS C�I�P► i �e[� i i►13�] � ►�i Ie� I�P►1 SEAGROVE- ULAH METROPOLITAN WATER DISTRICT WWTF ORC: LARRY CHILTON (336) 302-2782 (336) 215-3835 2ND ORC RUSSEL WELSH (336) 302-2384 LOCATION (LAT/LONG 35°31'59.75" N , 79°46'05.63" W) GOOGLE SEARCH ADDRESS: 798 NC-705, Seagrove, NC 27341 (PLANT LOCATE BEHIND CANNERY) SEAGROVE FIRE DEPARTMENT (336) 873-8666 SEAGROVE POLICE DEPARTMENT (336) 873-8870 WASTE HAULER (NEED CONTACT INFORMATION HERE WHO IS IT AND THEIR NUMBER) SIGNATURE AUTHORITY Michael T. Walker — Secretary of Seagrove- Ulah Metropolitan Water District P.O. Box 370 Seagrove, NC 27341 Randolph County (336) 465-1460 Seagrove -Utah WQ0002648 ` 1 1 4, j ! - �y�.�y-a ". ; • .. 'ill.. 4; - .. 2 mil gal Lagoon '1 I r� WWTF 588,000 gal Lagoo Bear Creek ' 71 Lane Lane #2 . •y Lane - - n Lane #4 •• 40acre ti, I Lan e#i6 Spray Field �• / i• 4 'A r mac ` Lane #16 W a } Approx. Scale: 1 inch = 200 feet 1a SEAGROVE-ULAH WASTEWATER TREATMENT FACILITY MASS FLOWS INFLUENT FROM COLLECTION SYSTEM, RATED 30,000 GPD, TYPICALLY 13,000 GPD = 1Q \TER :ATI ON R.T %• •'•f"ll `:,C µre - . 4 r six ` `r. �'•d' '� �' ' * :Ca i n p ti �•�_ ii �' 1_'f 'k�+� `'4 .�ly. • V `1r h yam...WIN. + y,•. 1 'll r I' � ' .1 .4 '+l�y H-;, / 1. 1'1in ;:;�. •.� + 1 .�.•�, ,.'' [+, -f` -_ il- � �. .' '�� .. - .._ � L' 1 ''I 'fir •r•'Y• 1 � S 1 � ! �' i I j-b' E .. � - 2. R •` •' _ - , _ ': "` -' `� ' .. 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