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Wastewater Collection and Treatment Facility Engineered Plans - Rev. June 1987
:z LOCUS PLAN JANUARY, .{ SCALE 1" 2083' REVISED 1 UNE 987 f TITLE SHEET .\.. '�• - �.,` H v_1 ,� o Shy ,tel • J1; Q,.Gan4erty�Eiogl' 10 �Li Yt' 'u ��1 �, ,S %%� \ 'n` `�\•» \�3 SITE PLANC Sf aa, Q'0 \1 moo° (\� �{Yy�Il•• _ a .. .� r• r?j., Sand iAd raPv`t `l ° � •• TREATMENTN T FACILITIES PLAN �1Q1S2r .__•� E � has ,,; � `' ' 'O ' Eidg fly ~c :r\�� p PROFILES IN „ _ 3 tNT� - MANG. rI �.� . _ , <.rr .� -:3x = _"�" - .r• _"mac �• o��.J., ,.�, ,. ,, fi e��:..�•::, at TE vEN ��t f SIA �, � � .-, • •,W- „ ,,. �, �._: 4 Massachusetts D � FOUNDATION PLAN AND DETAILS . Rd GraveC� i 1 r,. r W • r eA _F,..,k H -+� a intlt Enle � ; �nvrranment...! t� �' t� �. 00 Ad C U r `-40. _. 5 ; CONTROL Date— it 41 BUILD{NG MEC C L ��� I [ A H . M v pj A�:,. , 1 - `t'� k'�f WY;..�:�,i, z N l fI'11� ! �`4., .•,�• -'.. I.n x x 8 DETAILS YareuNath�tkrsae w ..»•. Re -1 tfr : Z a r d� r s �+, ,� M >:. .•. .. ,:nE:.lj 1, '.. q. d, f - .O Yl <.. /. 1, 1 � .. HEATING AND VENTILATION rtleOWINE�r a ua p�D _ E8 ELECTRICAL � � CAL WIRING PLAN t f C . Clan � Sand and Gravel _ � �i .� ..,. a. ,». -. �. c_ � � .,..., .:,. ,. a .% � -.,... .: Al I�1 / u 6 f / � ELECTRICAL L ; f Qrt•. [GHTI#�G PLAN AND SCHEDULE S 1 ,., t . � il� • ,. M ::•, • •. •i;P. . . / , ems.. . r •� 1 , f , - , „. � �- rte. ,, . ,\a.,, a,., ,.. w�011t�',� ,, j : I ° � aMa �,•,. Y : .....CODEF r . � . .. �. .�,.... .. 10 � 2 DEFINITIVE .DESIGN zz , � DESCRIPTIONS 1, ,Gra. e J / (: ( rt. 13 -14 SPECIFICATIONS . Jn `4679' LOCUS PLAN JANUARY, .{ SCALE 1" 2083' REVISED 1 UNE 987 f TITLE SHEET .\.. '�• - �.,` H v_1 ,� o Shy ,tel • J1; Q,.Gan4erty�Eiogl' 10 �Li Yt' 'u ��1 �, ,S %%� \ 'n` `�\•» \�3 SITE PLANC Sf aa, Q'0 \1 moo° (\� �{Yy�Il•• _ a .. .� r• r?j., Sand iAd raPv`t `l ° � •• TREATMENTN T FACILITIES PLAN �1Q1S2r .__•� E � has ,,; � `' ' 'O ' Eidg fly ~c :r\�� p PROFILES IN „ _ 3 tNT� - MANG. rI �.� . _ , <.rr .� -:3x = _"�" - .r• _"mac �• o��.J., ,.�, ,. ,, fi e��:..�•::, at TE vEN ��t f SIA �, � � .-, • •,W- „ ,,. �, �._: 4 Massachusetts D � FOUNDATION PLAN AND DETAILS . Rd GraveC� i 1 r,. r W • r eA _F,..,k H -+� a intlt Enle � ; �nvrranment...! t� �' t� �. 00 Ad C U r `-40. _. 5 ; CONTROL Date— it 41 BUILD{NG MEC C L ��� I [ A H . M v pj A�:,. , 1 - `t'� k'�f WY;..�:�,i, z N l fI'11� ! �`4., .•,�• -'.. I.n x x 8 DETAILS YareuNath�tkrsae w ..»•. Re -1 tfr : Z a r d� r s �+, ,� M >:. .•. .. ,:nE:.lj 1, '.. q. d, f - .O Yl <.. /. 1, 1 � .. HEATING AND VENTILATION rtleOWINE�r a ua p�D _ E8 ELECTRICAL � � CAL WIRING PLAN t f C . Clan � Sand and Gravel _ � �i .� ..,. a. ,». -. �. c_ � � .,..., .:,. ,. a .% � -.,... .: Al I�1 / u 6 f / � ELECTRICAL L ; f Qrt•. [GHTI#�G PLAN AND SCHEDULE S 1 ,., t . � il� • ,. M ::•, • •. •i;P. . . / , ems.. . r •� 1 , f , - , „. � �- rte. ,, . ,\a.,, a,., ,.. w�011t�',� ,, j : I ° � aMa �,•,. Y : .....CODEF r . � . .. �. .�,.... .. 10 � 2 DEFINITIVE .DESIGN zz , � DESCRIPTIONS 1, ,Gra. e J / (: ( rt. 13 -14 SPECIFICATIONS . Jn `4679' LEACHING PIT - (TYP) O C� .NOTES 1. EXI5TING TOPOGRAPHICAL AND PROPE.RTV LINE DATA; A5 SVIOWN 15 PPOVIDED BY SCHOFIELD 5ROTHER5, INC. OF ORLEAN5. MA55. 2. ALL TREA-TMF-WT PLANT COI�gTRUCTION WORK SHALL 3E COORDINATED WITH O=THERS , FOR BUILDIMG , STRucru RAL At4D ARCHCTI=.CTURAL, AS WELL AS UTILITIES. L-EACI-+ ING PIT REQUIREMENTS AT A SoiLt-) PERCOLATION RATE OF LESS -THAN P.O MINUTES PER INCH <Z.O min:/in. F'RCJPO SEp I l l / THE AL WABLE APPLICATION RATE F ) BUILD NG � I I � LO O 1 / 1 WASTEWATER IN LEACHING PI-fS LS / BOTTOM .O I9Pd/5+ SIDEWALL 2.5 9Pd/5f THE ALLOWABLE LOADING PER LEACHING PIT (IZ FOOT OUTER DIAMETER x 8 FEET DEEP, SEE DWG. No. Lo) IS 507TOM : '11 O 9 pd /3f = 1 13 g pd 4> Ot I / I Opp ��/ / 51 DEWALL : 'r(X 12' X 8' x 2.5 9 pd /sf = 754 9 Pd LOADING PER P17 8G-7 9Pd C, 1 1 I NUMBER OF PIT5 REQUIRED 24,000 gpd= = 2-7.7 PITS \ 20 8467 q pd / ppF O �. DUE TO EFFLUENT GUALL-TY, THE NUMi3EROF -00 REQUIRED LEACHING PI-I'•S 15 REDUCEDBY Lu` I / _ I 1 '! TWENTY PERCENT (20 RIM= 3(,.Q I / / \ � � 27.7 x 80'/o22.2 = P1-i"S 8.. INV = 2� 80 \ 3 8 \ / 20 - PVC S = 0.017 I / I \ � - - - _ - -• --- - - - - Z4 / SMN #3 NUMBBE ER OF PITS TO LNSTALLED \ / — \ RIM.= 24 PITS / // // 8„ INV IN= ZZ . 3� .p 5MH #2 I GW -I / 8" IN\/pUT=22.21 RIM =32.15 1 \ - . _.. I X12- / 8' INV W 22 �C�Co e GW-3,—C I O -4 C1d ,' 1 GARAGE (TYF') i 1 I PRELIM NAiZY�� N`% NOTE ' ELEC. � , "` CWTi�LCA -rR A7MENT TO i // BENCH MARKS ON 1929 MSL_ DATUM 1. CB# TI = 33.20 PUM l / 3� /ELEG ALARM AND ,qN K 2. GW# 1 = 39. b9 (STEEL GUARD PIPE) � `SS � r ' � � PHONE LINES BY i ,- - � � � 3 GW#2 31.9 / -2 - OT - // CO ( \ i i' 4, GW #k 3 = 30.9(o in T P %3!0 _ 3 t� _ - - / HERS / ' L,or- , '3 � ,.-' �- '� "GRAVITY SEWER \ / \ "tir ------_ m �, �� PVC 4 I , to PVC 8 sDr�-3s —Tr / (5D& PROCESS ,�, , 34 I - FLOW EQ UA LI ZAT 1UN1 i'.30 �� CONANp7 OL --A�� (PVC SDR -21 TANK `, / / i i' /� LEGEND D05I NG 5u 1 L_DI G - - - - 3z / , / 0 --' \ SIPHON ' N I / / STRI BU-TIONA BOX --*,4" DI5TRIE3UTION LINE (TYP) \ CHAMBER N_ �� �0 cB! - `� /l i //�/�Al-A- 01GROUNDWATER WELL 3v SET r ' ��a _ _ _ RV. C. 5DR —35_ , (0 . ' i fn_3. O' .\,ji `° _ SLUDGE _. 180.00' ;j ' 94.00' 2 - HOLDING / / 57AKE- 2(0.17 - - ( /' / 4� `TEST PIT � r'\r\ Z8 1 1 ,� INV. =27.78 /l� �/ �\ TANK i / 14 r 4 ! , (-TYP) / •/� /� / /� / // TPto,, X Ip' 5MH 41 / INCREASER ' R.IM = 29.5 i INV=2(0.48 INV=2[o.13 1NV.=2(0.77 / -� '/ ,� 60INiV. IN -'a-3.50(2) (PVC SLUR-21)�, m ( P) - i i0 DISTRIBUTIOKj LIME C 1�P / � 8 INV OU -T 123.40 (TYP) (TY1='.) (TY. LokiPVC (`SDR -21) ! / , / � / \ INV. 27.(.17 ' GW -2. - � •� _. ' / � - �/� ,/ �� � / �' � ` ` - •r - ' 1. / / / / � / , / / / / / - - - - , INV. = 2.83 (TYP) RESERVE LEACH _- 40 --� i TP -1 / +� 411 A- LEACH PIT PIT 340 �Lo N0O Z4� AREA / (TYP.) ---_� � � \ � O \ \ \ 2LO- _ _ __` /� ��• / / / / , �/ J Q (TYP) 38 / ' / / , / Massach uSet#S - — -� / -,� // ,/ Enviran b. p�ft�an,t of Quality L i�C it 40 Date— TRE ata TREAT ENT 1=ACIL171E5 PLAN - i IGEN SINGT4N AT FLAX POND JOUTH YARMOUTH, A5. ' / p X47tp 3�` 2 — ---- C) t1%4 SOFA _ - Gale Engineering Company, Inc. EL--: A RAYMOND r. _, OUNN 8 School Street P.O. Box 21 Weymouth, Massachusetts 02189 617) 337-4253 C) SOA, 11 ARY Scale: Date: Drawn: Reviewed: Job No: `4V ,: r�A 1,• = 20 G- 15 -87 HBE ARQ 4(o -7G A V, d'... REVISED 8-3-87 DWG. N0. 2 QA 3+00 � pVC S�O�0t7 2*00 1+00 SEWER PROFILE SCALE: HORIZ. I"= 50, VERT. - I"=5' \ T�F'0 PROPOSED 5U RFAGE 1 ELEVATION / I I + PROPOSED 5LA B E LE VA71OIV I \ I \ PROPOSED SEWER 170 _ g" PVC S —0.004- PV5 = 0.004 140 - 8" C FVC -S = 0.004 O 300 - (5„ Pvc S = O- 00 Q- \ s5 o. oo A- 011 PVG 5 = 0.004 O + zsp _ Pvc0 Q 81 �� � � Q / p 9 r N 8 S \ Q N� Q O �N _i� I .O �p ,i u N F- NN °+0 dJ� gip„ �� N��0 oo9ZD =�Z �g u Q 4z� >, #A -O ��dJ nSZ ►-ON 9 0 i Zz0-0 2�z? 100-20 ��-- cf� _ z z IY c0 0+00 1+00 2+00 3+00 4+00 5+00 10+00 7+00 8+00 9+00 10+00 11+00 IZ+00 13+00 TO SLUDGE HOLDING -TANK FILTER OVERFLOW RECYCLE METHAI�IOL ALUMSCUM SLUDGE BACKWASH TO TO 5MH #Z SMH # 2 W O AEROBI G x Q IV PRELIMINARY FLOW R 13C ANOXIC 5EG0tQ0ARY TERTIARY D05ING DI5TR18UTt0N LEACHING TREATMENT EQUALIZATION RL -3G _ CLARIFIER FILTER 51PHON BOX PI T TAN K TANK "AND cn CI -I -AMBER It,1FLUENT d AIR AIR (TYPICAL) (TYPICAL) PUMPS ME -1 A LIFT LLLIFT P PUMP UMP C =37.25 �.=3(obv r— - ME -2 _ _ ME -to 37.00 � ___. ELEV _ - 340 -- pvc F_0 cL= 33.00 NAE 5 (L32.2 (SDR -21) T -:5 ELF. V. z z_ I 10" 1DPUG ELEV.= 25.0 (QP VC 21 SDR 0 0 k W T_S F 00 p -X QJ n I► O o 0 0-R Z 2 _T - W w W W j _j P 17 z Arg Z 2 } TREATMENT PLANT N W(DRAULI C PROFILE K Z 5CALLE: HORIZ - N07 TO SCALE. VERT. - I,. `5,j PROFILES masscch!setts Dozrtr"'"t ofKENSINGTON AT FLA.X POND �n -*Oc:rll�, SOUTH YARMOUTH MASS. Environmental Quo1r1 � i NpZ141 D g Company, LG ,A_ L E Gale En 'sarin Com axi Inc. ' A. RAYMO nui,<r;,, 8 School Street P.O. Box 21 Weymouth, Massachusetts 02189 (617) 337-4253 SAW. Y Scale: DeW. Drawn: Reviewed: Job No: .° . , �� AS NOTED Lo- 1(.o -e> H BE ARG 4(o7cl R. DWG . No. 3 I Q I 30 � U ap 50 - e Pvc >n S = 0.004 ?lJ 8 T_1 0 O � 9 N. p 0� OI N N N NN Qi ISN N� Z D Z:) S 1! ) 0 N - o N # =�zz tr, >> # =�zzg6 � z > 7 �zLio pvc F_0 cL= 33.00 NAE 5 (L32.2 (SDR -21) T -:5 ELF. V. z z_ I 10" 1DPUG ELEV.= 25.0 (QP VC 21 SDR 0 0 k W T_S F 00 p -X QJ n I► O o 0 0-R Z 2 _T - W w W W j _j P 17 z Arg Z 2 } TREATMENT PLANT N W(DRAULI C PROFILE K Z 5CALLE: HORIZ - N07 TO SCALE. VERT. - I,. `5,j PROFILES masscch!setts Dozrtr"'"t ofKENSINGTON AT FLA.X POND �n -*Oc:rll�, SOUTH YARMOUTH MASS. Environmental Quo1r1 � i NpZ141 D g Company, LG ,A_ L E Gale En 'sarin Com axi Inc. ' A. RAYMO nui,<r;,, 8 School Street P.O. Box 21 Weymouth, Massachusetts 02189 (617) 337-4253 SAW. Y Scale: DeW. Drawn: Reviewed: Job No: .° . , �� AS NOTED Lo- 1(.o -e> H BE ARG 4(o7cl R. DWG . No. 3 S CC -T 10 N SECTION ra",� Sc-Aro•. /2 ,� � (,.0,.K�J SECTION Sctll-a 22'—Z �" t27.Cc7a Ee(o.Co711 — S.1n771 c�l� [Z3.co� 1 N.1.5. tir7-- --- —: — -- --- -- --- --�_ ---FSR, =Y. FU�� H5I4HT I �.—,— \ � WALL-Z7.lv7 rtN151-i FJ -00P\ i-LC� @ kJALL = 33. 7 CONT. I \ o k -00R EL SVC ®3 ,Co7 --- 7 70P Or FOLJIV(3. _ 3!.ot� Y I Y U� 12" CONCRETE PAp I ;' x 3z.sa I 3(,?" Comic.. Fav rALL RtNr. - sCE s, LEVEL @ 34 00 3 Q B" IF -AC I-1 WAY (TY P) F�Gt�R -J b 1 -EY EL @. 3o,S0 I 1, r I ►"� RIM_ 33,64 I N 36 GENERAL FOUNDATION NOTES 1. Foundations are to be carried down to a depth necessary to T 21" obtain a safe undisturbed soil bearing capacity of 2 ton per square foot. 2. Exterior footings shall not be less than 4'-0" below finish f-� grade. 3. Provide corner bars and dowels into adjacent walls. . .,.. CONCRETE NOTES i-- 1. All concrete work and reinforcing bar details shall conform to the latest A.C.I. Code and Manual. PT 2. All concrete shall be Pc = 3,000 , p,•s.i. at 28 days... 3. Reinforcement shall be standard deformed ASTM A-615 Grade 60 bars. fs - 24,000 p.s.i. 4. Clear Concrete Protection for Reinforcing: a. Slabs -V-2" b. Walls - 2„ c. Footings - 3" TYPICAL STF-PFFD kAL�- FOOTING 5. All continuous reinforcing bars shall be lapped 36 diameters N.T.S. at splices and at corners unless otherwise shown. 6. Contractor shall submit checked sepia shop drawings and placing plans to the Architect for all reinforcement before fabrication, 7. All exposed vertical concrete surfaces shall have Type V finish. Building framework 1. Building framework requirements for sill configuration to be coordinated with Project_ Designers. KEY M V, IL` 9 N I W AW 2#� N I 53 c.z x 33,58 I x !� ULL, Hb(.PH-T f \ y X07] i / ��1..0oR DRAIN W i _ _ / `.J I I,rI _ 7 130T TCS M OF �T I N C� --Z -,----------------------,T -i R �Z ,Sk I 27.67 27. Co 7 ' t I 1po�? 1 -?,1 M 7. s 27 59 C� CDNGRET • + FI-bOR SLAB ELEY = 33. (c7 I (TYP) I i LE" CONC, WADI ® 0 (I LEVrzL CD 2-6,00 I I ( 7. Z7. t LEVEL @ 34.00 — — , --I N IZ" CONCRETE PAD �_ FiNiSH FLOOR GLEv C�' t,.1A L= (o7' APPROX. raslTtUN of [25.C�� i'E sl_ECVLS: j �1NDATION l�fft�L To t3C 51-10RED — SEE „TECH. DRWG. L1i�lT l t_!_AB �S Ail: GieT { vv.ov'� i=01� DF -TAI LS(ALSa DoT?oM vF FvoTt�lG� SPEC. O�55W-13) - TYPKIr 52` 2 N FoLJNPA71ONF-c� � f -LAN � FDR r= aTINIG sI 1= - SC -F- c,ECT SC'G-T 10 N S 5(--A L t: Boa„ - t._o„ 3�-v it ,r I �9cf�lJB/C /,-511404FG ocUG.9rc� 174 ,U � 3700 6".o/ ,�Ec� cuGA� � iT q DB ;_ /ji�i,-f;�grc 3 /'«' to fG �/D•� - 0. 1 _ ... :: ; . C'G Eit/OUT /�0�0-i/ �'OGYE'?/�ELE.NE ° �• rGf�/`� � _ir.Jr�' / � %E�T/�i/�'i� — — — — -- - — — -- — � � �� ; r>' `nor d•9L uE 3z Z �7'�' S Y '-/ir�/ira zJ�/� J �G U6 :-17-7. 1,777, =JJ „BvD� NOTE `LDO/�/rB� 5/0'♦ INAUL11-UUIT tVP SOLT SET IW TWIST DRILLED G'LE9•c%dr - - — � �, ao I+OLL IN ACCORDANCE WITH DOLT MANUFACTURER'S RtCOtAMENOAT IONS. 'L' TO EE AS RtaU1RED TO SUIT OUAUTiTT AND IE ,25;1�D SPACIN4 OF PUI+IPS TO aE IUDTALLtD s HOLES FOR ►UM► MOUNTING OOLTs. SMALL 0E AS RIL. DT PUMP TO Et INSTALLED GIO•IS.l: l' -• -J r - 1 k CW SRACKtT t FEED PUMP TD jiylsl �`/ TD fG Cl7�G� PC CIO e R AC K C T 174'-G�' c F 1 MAf. O ' ' • • I CONC. WALL = oof FIN. FL C10 KIS.! •'L' PLAN SECTIO n7 CHLORINE. FEEQ PUMP MOUNT DETAIL ' 1 .NOT TO S4ALt , 3 „�.� „�� j>�c� I 1 I I //z "yuf 3oz �CU.�iI T�'OUG/a �,/ �.Q sfo•9' ,• /,flATB'Ile ESSUi�� i P/. -/09 �u>✓/u �fC ► `grvo x'; c I � v DLf/ ,-a j j 11 I I ��l/� jTorzyt�c �'1,B x,04 6 I I I I I�c.� os/ ( -9 CGEq c o«7 - I I 1 �/GrE�Z ° I � I I � � 3%�1' -/asf F.� ry,�E %�' �' :J�f�r- Z sdr/o•� W?a,Z t yfJ ,0 �•L�U � fcr'/.off �!v To �'o-� I � ��-^ — — G'CE9•f/o<�T ,Z l/-904 I iay. X3300 1�2U/UJ fTD,�f/ls� - �i3'P/`�`Jofy..�7so _ GJ� yam ( -%04 FGCJ �EcycG� /LSCC F/GTEiP �4— - - o I• — gGG�fs I wc�p . /�/� x ;5," �'%r'o oma' t4jassachusetts Dep-rtm nt of 3r�i cnC ririEnvironmental Quality E 40 40-01 �&E .�� icy w3oz Qai / 14/-1 1477 �7,1 to �� •/ OF Gale Engineering Company,Inc. GALK A. RAYMOND 8 School Street • P.O. Box 21 Weymouth, Massachusetts 02189 617 337-4253 %r Z QUINN sAnrIra Scale: .� Date: Drawn: Reviewed: Job No: A No. 3 /J 2,6 i Y .r ,Q Lerl9 h of A C. ' T . Cor»ectio� . SSP BIRD SCREEN (o V404 WITH BIRD SCREEN A. . P� e M .S eos f'o C P F/,U/SN Gf�.dpE 15' O. x _^ , _ STANDARD M H F2A roc E AND COVEK (-'YP) 14 O 43 1 tt I L -i i 3"Min. I .--"`3 Bay � _ I i.•. ! Pwegr,4 7'C'O.f/C. •,I 1.7 _ s s I ryo Cor�r�ec/io ---- 5 ECT I ON T /.(/LET 5M/L f'o/_ Y SEf /''LAA1 i?.r•• •• ••. t f , i {� // Min.. ........ ... �'••.• •.• �. 2 -3 �A STDM� 5 6 PLAN r. I L �" 2=0" 8" (o" PL 404 B _ -- -_ Sta' A f A/ Frame fCote/ n o Olmew !7/,4. e /3/� - - - 1 - - - - - - -- - J / "C/eer-- % I -,--Finished .Cir�/� I��� Ott .i L � _ � _ _ - _ ._ _ _ --1 -7rrtrr ,, O/.4. 57ANDARD M.H. FRAME AND COVER JT D E TA I L S Cor�cr-�'fe "A/ eo• ALL I I - / _ I I I ,4f�OLl.C/L7 fflff Of FLIJFS . — -- -- .• _ v _... r. _.,._ _ Use 2_>0 5 B��c�t ; 0 T__a Cc���s .y�av _Boded 0 0 (o DIA. ;.• ' • 8 Courses �s �� . ^ v - ,cs% Tar Emc./s.on t IN to b. -/'/7g 41 H. R11n- 1. 0. to reyuiied E/ev - I I ip NT _ Ri Rubber I I I L O � 'DIA. �_!?�.-- I r- - � 2"7' t�-Ge�s.�et a 1�✓cines I ( I - N 14 • 6' OUTLET 1- -i� 5. 2• 3=0 4' 0' i �— • ; i--- /••9(.4/ 0,, Fio�/"T pe TOP VIEW $ 4 6 DIA. HOLES 4 5 Brick Cfianne. LIQUID 6' T. iCf� Sreo5 @ 12 0. C. / �� LEVEL • ZL TYPICAL LEACHING PI E/evafion o/' Brcf able ^r?reco�sl Fc�nfbrced ° -f above /.%. A 4e tot, ®., . ; ,,. < .• a N -� cJ s' D<arn�fer off' P��oe �-- M. h! Base � S/db. ... •.., • :. •. e -. .. - _fi I.E. =31. 70 77 4' BAFFLE I _� _ — a „ 4, 6. 6 Min. rr'o� Manholes . __ _- to" TO 10 NCKEASER O 9,- O. Oet',o I� 1� l0" PVC (SDR-21� _Y_ 1 :� 6 `Grave/ or itE�sh�.� sE� NoTE�.�= ., . 8 'Miry. �''o� Manho/e — -- — — - S7`one ds .Qo�ona✓ed 7.1 . e ,•. o a �.il lG/1SE TRAP 9 -O `- 20 =0 "Dee,.. (Jnd�sfu�bed Es�ih -' by fh� En9�neer _- _ -(�' PVC (SDR -21) •y t.1.T.g. SECTION A -A � �` I 2,500 GAL. SECTION A - A 1. E. = 27.78 - - - - - � _� D0511QG 51PHONS ; I TYPICAL SEWER MAN HOLE I)5HALL BE DIA. AND MADE DOSING SIPHON - OF F R P. (AVG . CA P 475 g pm) 1 N . T. 5 2) RIGIDITY SET IN 0.75 cy N . T. S. OF CONCRETE (MIN.). 2,400 GALLONS ► ' t 3) R15ER ELEVATION OF SIPHONS PER CYCLE •� -' I t' � � .t�. _ DIA•...,.. SHALL BE WITHIN 0.005 OF ,t I I�- EACH OTHER. INLET DISTRIBUTION BOX SHALL_ ` -1 BE WATER TESTED 137 L r - I • 14. 5° OUTLET B--- ------ — -- --------I b" V 404 WITH BIRD SCREEN 4° — — — — — — — — — I--•-- --- ---- 3511 I'.i - 5• PIPS NO. miWIMUM WEIGHT Z(o5 L55 A HANGERS --Z. _ A (TYP) '° I 2. MATERIAL - CAST IRON 0 I A A J ,-a� NDARD MANHOLE H OLE I w STA --�, ► , . , N N PIPE FRAME i COVER DETAIL � I_; ' � 1L� 0, gUPPOR7 � 6. g (TYP.) NT.`S,- -------------- - 4' I I I PLAN VIEW S.E-1 Di57RIBUTIOW BOX EQUIPPED WITH TEES 57ANDARD MH ACCESS FRAME AND COVER i"RAMG AND CO�/ER � --B�fzD scRE�r.I PLAN VIEW B 4 V 404 PRECA5T D15TRIBUTION BOX 4 of p n i \ CONDUIT TO 2'1Z PVC NOTES 24" DIA. RISER Cor_VPIOL 5L1__a (5DR .,--1 1) 1. ALL STRUCTURF=5 5HAL.L BE RATED FOR H-10 70 GRADE JUNCTION GATE VALVE LOADING. t TYP BOX — 2. TRUCTUKF_ JOINTS SHALL BE SEALED WITH R23 -2 q; ot, { !CHECK;VAL.\/E 5 v it (15 -o t it ( ) .FLEXIBLE = "q L.. T EALER, OR APPROVED EQUAL. Lo 2 2 - 2 .� IO -O — a0,� �8, o,t COUPLING :...... :,::, .•{..' M N G H S 8.' OUT , RU T 8 INLET _ HIGH LEVEL ALAKM I.E.- Z1.50 11 nd = Massachusetts — - I. E. = 3.75 :::• :�.. _ 2 .PUMP ON — _ S@1��S �,_ Vit' M O - - .., .. PLCn03 �^r 8 INLET = - • nvironm , �nt�� uallt r E.= gl.g2 N PIPE _ 0 O INFLUENT tom" INLET , „ N _ —-' SUPPORT , _ _ Q- _ ODE TAI LLS :: � _t PUMPS a0 �"• LIQUID (TYP SLIDE � .. LEVEL ::.• •... :. -i IST PUMP ON � N 1 V TON FLAYP0ND ..:: LAT.. PUMP OFF -t SOUTH YARMOUTH, MA55. • �'/Z , fit, - 23' - 2" — tet, 2'- I'. 2'-1" (Oil — � l0 SECTION A - A - 22 �" — T _B -8 .' IC -o" !SECTION SECTION A - A SECTION B - B NATE ; 5 PF DWG. No. z FOR PRELIMitalARY f REATMENT TAN K �`I �4e'.ORIENTATION OF INFLUENT �q�• !GALE! , FLOW EQUALIZATION TANK o : p Gale Engineering Company, Inc. AND EFFLUENT PIPE -5. N.T. S. O GA - H 1 LO D 12, 00 LLONS O A LNG A. Tul•4N �►' - - ---- T. ' SANIT 8 School Street P.O. Box 21 Weymouth, Massachusetts 02189 (617) 337.4253 N S 12, 000 GALLONS V' Scala Dai® Drawn: Reviewed: Job No: y - A SLUDG E HOLDING T NK R ' :.. � I -- 3 a7 RQ a��q A � � NO SCALE HBE A �..r.,�� REVISED (o • HZO LOADING DWG. NO. ro SEE H � V UNIT SCHEDULE BELOW -- OU 1 ®000 AI TZ I KJTAKE G ----- >3Y CaA s uT 1 L_ I T Y CC). PLAN - HTG. (� VENT. SCALE:'/4"= 1'-O" HEATING & VENTILATION UNIT AIR HANDLING UNIT HEATING UNIT NO. TYPE TOT. O.A. TOT. FAN HP RPM CAP COND. H.L.VENT IN. EAT LAT INPUT FV FILTERS CHARACTERISTICS CFM CFM S.P. BHP 24" PROPELLER MBH MIH MBH °F MBH GAS HV— I FIRED 4000 4000 I.111 1.52 2 980 308 35 273 5° 760 400 500 T.A. '"SCE" UNIT SHALL BE REZNOR, TRANS, OR EQUAL -a- EXHAUST TERMINAL 5" DIA. FLUE EXH. PIPE COMBUSTION AIR INLET -FLASHING ' s ROOF s i 6"DIA. F EXH. PIF 6" DIA. FLUE COMBUSTION PIPE NCENTRIC ADAPTER AA. COMBUSTION AIR PIPE GAS FURNACE VENT TERMINAL DETAIL NOT TO SCALE r"1 -*-,SPLIT HALF -PIPE WEATHERCAP WELDED ON ---� PROVIDE NEW SCHEDULE 40 BLACK,STEEL LINE TO 6' ABOVE EXISTING ?- ROOF PLUG IN CAP AT BOTTOM DOUBLE THIMBLE WALL OUTLET 3 WATER TRAP- i3'f i EXHAUST MUFFLER NEW GAS 2" -NATURAL GAS FIRED ENGINE FLEXIBLE HOSE SECTIONS r --ENGINE GENERATOR I f I -DRY GAS FILTER SOLENOID VALVE SECONDARY REGULATOR NEW EMERGENCY GENERATOR PIPING CONNECTIONS NOT TO SCALE L.CVGIVV 5 DUCTWORK RUN EXPOSED ALONG WALL. ARROW INDCATES AIR FLOW -----f AIR SUPPLY REGISTER ON SIDE OF DUCT l piq FLEXIBLE CONNECTION IN DUCTWORK ---�#-►DOOR UNDERCUT MOTOR OPERATED DAMPER W.P. 0. Al WEATHERPROOF OUTDOOR AIR -INTAKE LOUVER EXH. EXHAUST CFM CUBIC FEET PER MINUTE (AIR FLOW) O SPACE THERMOSTAT -iGyie GAS METER, PRESSURE REG. 4 MAIN 5HUTOFF (BY GASUTIL. CO.) �==G=� GAS SERVICE LINE BURIED f—G--i GAS PIPING LINE ABOVE GROUND i -EE ENGINE EXHAUST PIPING Ac PIPING LINE TURNING UP �-i?ZI, , GAS SHUT OFF COCK TCS TIME CONTROL SWITCH, 7 -DAY TYPE F— --� CONTROL WIRING (BY HV CONTRACTOR) ASPHALT ROOF ROOF SHINGLES TRUSS 112 PLYWOOD 3 M I L. POLYETHELYNE VAPOR BARRIER 1/211 PLYWOOD CEDAR SHAKES EXHAUST FAN NO C.FM. 5RN. R.P.'R. WHEEL TYPE DRIVE AREA SERVED ELECTRICAL REMARKS IN. D A CHARACTERISTICS EF -I 4000 3/8 800 24" PROPELLER BELT TREATMENT PLANT 208V. 3PH. 60HZ CLASS I, DIV, I, 1 HP 1750 RPM DRIVE MOTOR t DAMPER MOTOR VENTILATION REQUIREMENTS MINIMUM AIR CHANGES PER HOUR = 6 VOLUME OF AIR IN BUILDING = 31,000 CF RATE OF VENTILATION AIR CHANGES 31,000 C.F. X 6 HOUR X 60 MIN. 31100 CFM HOUR USE 4,000 CFM AIR CHANGES PER HOUR 41000 CFM X I X 60 MIN. _ 7.74 AIR CHANGES 31,000 CF HR. HOUR 1 5/8 It MOISTURE RESISTANT GYPSUM WALLBOARD __---CEILING & WALL COATING 2 PART EPDXY PAINT 2X6 STUD (24" O.C.) -----6 [1 INSULATION FLASH & CAULK 21 2X6 SILL CONCRETE FOUNDATION WALL k CEILING SCHEMATIC SECTION VLC7 HEATING AND VENTILATION KENSING70N�Al FLAX..POND u +oss=cnue �ses ocna��mon� Quclity En(', Envieonmentaline i SOUTH YARMOUTH, MASS. �I Gale Engineering Company, Inc. t :.. _ El 8 School Street • P.O. Box 21 Weymouth, Massachusetts 02189 (617) 337-4253 Scale:„ _ u Dale: Drawn: Reviewed: Job Na. I/4 - I i- 3 t� 8� 4h79 A DWG No . 7 (3)2"PVC GOND: TO PUMP STATION SEE SITE PLAN (4) # IO AWG — I HEATING & VEN UNIT HV-Ilf RGC 14 # 5/0 - FOR CONT.� SEE SITE PLAN T 1-V (2) 21/' PV C 5�F-�t .4t��K�CE1tt.!AiC: BY -z OTHERS NO�TC- : Ft..OAT 5WITCH (1) IN Wry LL To -LEGEND -rup,w KAETE iZiN PUMP'S 2 Oti OFF-. 5W ITCH �' D C)W rsXr 15 01=1= 5=E =4 ELECTRICAL - SERVICE CONDUIT, BURIED 5WI-CHaUP"ISOty �=_—T:==; TELEPHONE SERVICE CONDUIT, BURIED - PANEL WAY RUN „LP"" f----- RACEWAY 2"C. 4 ft 2/0 CIRCUIT HOMERUN TO PANEL BREAKER NUMBER OF ARROWS INDICATE CIRCUITS, HASH MARKS INDICATE NO. O� #. 12 CONDUCTORS ` WHEN t - !MAIN SERVICEMORE THAN TWO. DISC. SWITCH 'J" FU 150A ,., I`"p 3 LP 2 OA 0 A HTING FIXTURE LETTER DENOTES TYPE - 2 MCP WALL BRACKET iTYP.) I S SEE SCHEDULE "J"FU 175A — — -- — J 31411 C. I # 4 2112" RGC, 4 # 310 CEILING FLUORESCENT LIGHTING FIXTURE I GROUND C I 7 MAIN POWER SERVICE 1201208V, 3PH, 4W LP 2 1/21'RGC 4 # 3/0 AUTOMATIC TRANSFER PANELBOARD r–, SWITCH 2O0A HHS 1 � ' 2"C. 4 # I DISCONNECT OR SAFETY SWITCH X314" X 8' ROU UNIT R DSND MOTOR STARTER. MAGNETIC DRIVE Mt7Tf3Z GEN. PNL. - 5 IM 4My ELECTRIC DRIVE MOTOR (DASHED INDICATES FURNISHED UNDER L ?____ OTHER SECTIONS i iL. � _4""' MCP MGP A 45KW EMERGENCY A ALTERNATOR (GENERATOR) (45 KW) IN METERING PUMP GENERATOR SET Lf'' 9 M (METHANOL. METERING PUMP 01 ONE LINE DIAGRAM MATT. BATTERY— STARTING lM (ALUM) NOT TO SCALE 0.3 Hp M IXZ-R MCP P ATS AUTOMATIC TRANSFER SWITCH (200 AMP) MC M MCP MCP" -- 15y,,'�•.• /'% M� f - 5XH AUST FAN E' F-1 � � � `�sJ' rM O,` � `' J MCP MOTOR CONTROL PANEL SIM/ M/' MCP J JUNCTION BOX MCP �, � -cit, M. f To MOTOR � Q M MC �i f _-_ . _ - STA► i�' i� MCP tM� J {M� RECEPTACLE , SINGLE , 20A+•. P PLOW MCP / `A) 3 CO iZDE: R. LP - � RECEPTACLE , OUPLEX, 2C7�. L 0.3 HP I6 GFI GROUND FAULT INTERRUPTER RECF'TAGt.. MIX�•1?. �. - CLARIFIER, UN IT CURIvC— MO"f'C7 R, `DHW) DOMESTIC HOT WATER HEATER , ISOOW PUMP 6LOWER L.� DRIVe IanO"r025 �"� S SINGLE POLE SWITCH M. H. 3'-6s" AP F, ZC? �• S3 THREE WAY SWITCH M.H. 3`- 6" `AFF) 2C3 A. DENOTES ITEM REQUIRED TO BE UL LISTED FOR CLASS 1, DIV 1, GROUP D ATMOSPHERE PLAN " POW E:K �H H� HANDHOLE BURIED 18'"X 1(3" X 18" ..INSIDE SCALE 1/4-"= 1'- O►► SVS SOLENIOD VALVE (FURN. UNDER OTHER SECTIONS). �PE� PUMP ELECTRIC POWER RACEWAY t CONDUCTORS, BURIED. �PC� PUMP ELECTRIC CONTROL RACEWAY t CONDUCTORS BURIED. "TCS TIME CONTROL SWITCH, 7 -DAY TYPE (FURN. 13Y HV CONTRACTOR) "..� J rM0' MOTOR OPERATED DAMPER (FURN. BY HV CONTRACTOR) L Massachusetts D�+�a rtmant 01 ssach rin Ma,Iity �neC �ELECTRICAL WRING PLAIN Env+ onm NSINGTON A FLAX PONID n 1)ate 5OUTHYARMOUTH,MASS A. RAYMOND 7 OUNN SAfVl3�€eRY y� ° NaNOF f Engineering Company,Inc. GAL E �.�Gale g �` °School"Street P.O. Box 21 Weymouth, Massachusetts 02189 (617) 337-4253 IAM UEtE 8 Y V i t I A w S(.ii' �e Date: Drawn: pArm ed: Job No: /� u=�On -31-8 4(o7gA Fs�tOMAl EpG W VWG. <No . 8 W 2 Q x V i U M I T D 2 I V C NAOTO R. 4� "J"FU 175A — — -- — J 31411 C. I # 4 2112" RGC, 4 # 310 CEILING FLUORESCENT LIGHTING FIXTURE I GROUND C I 7 MAIN POWER SERVICE 1201208V, 3PH, 4W LP 2 1/21'RGC 4 # 3/0 AUTOMATIC TRANSFER PANELBOARD r–, SWITCH 2O0A HHS 1 � ' 2"C. 4 # I DISCONNECT OR SAFETY SWITCH X314" X 8' ROU UNIT R DSND MOTOR STARTER. MAGNETIC DRIVE Mt7Tf3Z GEN. PNL. - 5 IM 4My ELECTRIC DRIVE MOTOR (DASHED INDICATES FURNISHED UNDER L ?____ OTHER SECTIONS i iL. � _4""' MCP MGP A 45KW EMERGENCY A ALTERNATOR (GENERATOR) (45 KW) IN METERING PUMP GENERATOR SET Lf'' 9 M (METHANOL. METERING PUMP 01 ONE LINE DIAGRAM MATT. BATTERY— STARTING lM (ALUM) NOT TO SCALE 0.3 Hp M IXZ-R MCP P ATS AUTOMATIC TRANSFER SWITCH (200 AMP) MC M MCP MCP" -- 15y,,'�•.• /'% M� f - 5XH AUST FAN E' F-1 � � � `�sJ' rM O,` � `' J MCP MOTOR CONTROL PANEL SIM/ M/' MCP J JUNCTION BOX MCP �, � -cit, M. f To MOTOR � Q M MC �i f _-_ . _ - STA► i�' i� MCP tM� J {M� RECEPTACLE , SINGLE , 20A+•. P PLOW MCP / `A) 3 CO iZDE: R. LP - � RECEPTACLE , OUPLEX, 2C7�. L 0.3 HP I6 GFI GROUND FAULT INTERRUPTER RECF'TAGt.. MIX�•1?. �. - CLARIFIER, UN IT CURIvC— MO"f'C7 R, `DHW) DOMESTIC HOT WATER HEATER , ISOOW PUMP 6LOWER L.� DRIVe IanO"r025 �"� S SINGLE POLE SWITCH M. H. 3'-6s" AP F, ZC? �• S3 THREE WAY SWITCH M.H. 3`- 6" `AFF) 2C3 A. DENOTES ITEM REQUIRED TO BE UL LISTED FOR CLASS 1, DIV 1, GROUP D ATMOSPHERE PLAN " POW E:K �H H� HANDHOLE BURIED 18'"X 1(3" X 18" ..INSIDE SCALE 1/4-"= 1'- O►► SVS SOLENIOD VALVE (FURN. UNDER OTHER SECTIONS). �PE� PUMP ELECTRIC POWER RACEWAY t CONDUCTORS, BURIED. �PC� PUMP ELECTRIC CONTROL RACEWAY t CONDUCTORS BURIED. "TCS TIME CONTROL SWITCH, 7 -DAY TYPE (FURN. 13Y HV CONTRACTOR) "..� J rM0' MOTOR OPERATED DAMPER (FURN. BY HV CONTRACTOR) L Massachusetts D�+�a rtmant 01 ssach rin Ma,Iity �neC �ELECTRICAL WRING PLAIN Env+ onm NSINGTON A FLAX PONID n 1)ate 5OUTHYARMOUTH,MASS A. RAYMOND 7 OUNN SAfVl3�€eRY y� ° NaNOF f Engineering Company,Inc. GAL E �.�Gale g �` °School"Street P.O. Box 21 Weymouth, Massachusetts 02189 (617) 337-4253 IAM UEtE 8 Y V i t I A w S(.ii' �e Date: Drawn: pArm ed: Job No: /� u=�On -31-8 4(o7gA Fs�tOMAl EpG W VWG. <No . 8 W 2 Q x V -JI LIGHTING FIXTURE SCHEDULE TYPE DESCRIPTION MFR'S. LAMPS MTG. REMARKS CAT. NO. INCANDESCENT WALL CROUSE -HINDS t WALL CLASS 1 A FIXTURE # EVBX201 20OW . BRACKET . AREA USE INCANDESCENT OUTDOOR KENNALL I WALL VANDAL & WEATHER B " FIXTURE # 3737 75W SURFACE RESISTANT CLEAR 7112"X 51 518" FLOURES, DAY— BRITS 2 CEILING CORROSION RES. C INDUSTRIAL TYPE FIXTURE # WR41241 F40R.S. - SURFACE ENCLOSED & T SKETTED 13 318" X 50" FLOURESCENT DAY BRITS 2 CEILING D INDUSTRIAL TYPE FIXTURE # 40211W-4 F40 R.S. SURFACE OR SUSP. FAN—LIGHT UNIT BROAN I CEILING 50 CFM EXH. E INCANDESCENT FIXTURE # 676 75W RECESSED FAN INCLUDED ELECTRICAL t S chusetts Dcpartudent IGHTINGANDCNEDULE �,�assa -nvfronmental 0 UVIRY EnCln��rin KEN51NGTONAT POND FLAX t5OUTH YARMOUTH, MA55. C) oul, 1 ShP:6 �R .A©F M Gale Engineering Company,Inc. [ELSFI- 6 (9. ENGINEERING. COMPANY, I.NC. 8 School Street P.O. Box 21 Weymouth, Massachusetts 02189 (617) 337.-4253. &AmuELEScaler Date. r . Dawn. Reviewed. Job Na _ A 1 -87 4G719 ?cot I �, DWG No. q o wn��non 'oma■�u������■■ mom..■..�■■.... INS m�uu�vu��■■ m�ONE �an�oiiii MEN ELECTRICAL t S chusetts Dcpartudent IGHTINGANDCNEDULE �,�assa -nvfronmental 0 UVIRY EnCln��rin KEN51NGTONAT POND FLAX t5OUTH YARMOUTH, MA55. C) oul, 1 ShP:6 �R .A©F M Gale Engineering Company,Inc. [ELSFI- 6 (9. ENGINEERING. COMPANY, I.NC. 8 School Street P.O. Box 21 Weymouth, Massachusetts 02189 (617) 337.-4253. &AmuELEScaler Date. r . Dawn. Reviewed. Job Na _ A 1 -87 4G719 ?cot I �, DWG No. q SIGN DESCRIPTION ESCRIPTION DEFINITIVE DESIGN DESCRIPTION DEFINITIVE DESIGN `DESCRIPTION DEFINITIVE DE DEFINITIVE. DESIGN D Equalization Tank Unit Name Aerobic Rotating Biological Contactor ,_ .- .. s Treatment Tank Unit Name q _ Unit C�. Inf � _ ..t Pump Unit Name Prel i.. �ary - Unit Designation T - 2 Unit Designation ME - 1 Unit D•_ ;natio.:: ? - 1 A&B Unit Designation '_' - 1 Purpose of Unit Operation Purpose of Unit Operation Pur as�_ Unit _ -:<_rat ion P p Purpose of Unit C -,,- ration at ion e influent flow equalization to biological treatment plant Provide biological treatment to raw and recycled wastewater using a f equalization tank to biological treatment tion and sludge storage. Unit Proved q � inf 1�. nt flow from - _Provide pr. •,-,ary influent sedimenta g units. fixed film process. Mechanisms are basically -rotating, corrugated y.t at a �ecif led rate. r-rovide sol ids volume reduction through anaerobic sludge _ will also plastic discs, on which a biological film has been established. By digestion. Additionally, dditionally, the unit will provide denitrification for g the action of the discs rotating into and out of the wastewater the the high ra',:: recycle of the RBC effluent. biological film is repeatedly aerated and exposed to the organics of the wastewater. Design Criteria Design Loadings: 0 0.5 gpd per square foot (sf) at standard conditions Design iteria - Design Criteria 0 1.75 pounds per day of soluble BOD per 1000 sf (max.) Duple: _pumps o Provide adequate volume for :-.ydraulic equalization of the Facility Description and Pertinent Information c, Each hump is to have the capacity of the average daily flow Design Criteria influent flows on the maximum day < 30, 000 gallon) plus recycle flow (65 gpm) and 32 feet total dynamic head o RBC unit will be three stage, modular and shad be sized to <TDH>. o l2 hour= detention at ADF o H10 loading provide nitr if icat ion. 0 409 of influent and secondary solids entering will be retained Adequate access to be provided for influent pumps o Adeq p o RBC unit is designed for carbonaceous treatment and in preliminary treatment tank nitr if icat ion.. 0 4096 of solids retained will be reduced anaerobiciy Aerobic RBC shall be an Autotrol (Envirex) Bio -Module, Model No. 621-154-SSHHH o H10 loading ..._ _ . - ...: c:. - - - • - _ - - • _ - - - _ - �: _ • _ ••- _5 BY F. R. I t`ti.-aHONy _ RBC-� 07 RDC PROCESS DESIGN J 'ROGKAM COPYRIGHT (C) Igo Facilit_ Description and Pertinent Information . --•-•• = ---._..-- ---- C. Submersible pumps with automatic controls (pump off, 1st pump Facility Description and Pertinent Information on, 2nd pump on, high level on) . Equalization will be provided by a precast, 12,000 gallon tank with o Pumps mounted on a rail system. Facility Description and Pertinent Information H10 loading. A four foot diameter access will be provided at the PROJECT NAME: CAFE PROJECT _P Y DescrP nenlocation of the inf lue-t pumps. L=NG I NCi-R : E1ALE EI`J(-, I NI=EI-i I fd[i o Pumps capable of passing 1 inch spherical solids. Preliminary sedimentation tank will be 12.000 gallon, precast `Influent pumps shall be En o -Cornell, Model 3-7-23-02. concrete tank with at least three 24 inch diameter manhole accesses ' p p p Pr;T(_: 11:'l0/00 (�:UIV IV13MI-rI_t;: i i=NOXIis E'I?ETRE A7?iz=N3 - I C' HTh OBJECTIVE IS RE H OVAL OF CARDO1\1{iCf"OUS BOD pt•.L) Al. HUN I A F:-Ror-t A1 -J; i>; I C 1=-RL?-R'EATHENT EFf=LUEt1T G!i)STE ar ; ; Lt I IVr= LL1f fVT CllAfzr�L:TER I S i-) CS AVI_ RA._•r_ FLOW i 00) . �t;' 1 1 IGD PEA1-'DAILY FLOW (QP) .04 11GI} M I I4 I LIU:`1 FLOW (0-H1) i -IGD TOTAL BOD (DI } ?,i>Q ML ' 1. - SOLUE'I__E 11--10D (FI) L 3� HI(�,'L y 13E:E NOTE BELOW. a a SEE - n =*l-GGJ SUS•i= . SOL. T L:S (�� I) i sii Mf � i l - NK ---N (NI.) 45 HG/1- WATER 'iWATER TE.HIP ( 1 1 } 55 DEG t tJOTE i SOLL�EiLE BOD., U'FiS ErJTL.l I_li AS ' hJC'•? IN ��UCh? CALCUi__ATES SalOD AS f=0s_ LO WS. SOL DOD = TOTAL SOD - (I SS } FOR T HIS WASTE AND TREATMENT PROCLSS IS ASSUMED I SE iJ. S { AND INFLUENT SOL DOD IS CALCULATED TO BE 1 '� � • 11GI_ NOTE 2 DUE TO ANOXIC PRETREATMENT SOL.HOD SHOWN HAS BEEN INCREASED 507 OVER CALCULATED S%OD TO ALLOW FOR CONVERSION' OF SUSPENDED POD AND DEPLETION OF D.O. IN, ANOXIC STAGE. WASTEWATER EFFLUENT REQUIREMENTS EFF TOTAL POD (B9) 30 MG/t_ EFF SOL BOD (F9) IS MG/L _ v EFF SUSP. SOLIDS (S9) 30 MG/ L_ ��1Lr EFF NH3-N (N9) 2 MG/ L *EFF SOL HOD SPECIFIED AS 15. HOWEVER DOD PHASE IS DESIGNED TO REDUCE HOD CONCENTRATION TO 15 OR TO NH --:!'N INFLUENT CONCENTRATION WHICHEVEF IS LEAST. ADDITIONAL HOD REDUCTION IN fJHt N REMOVAL PHASE. DESIGN IS BASED ON MECHANICAL_ DRIVE, 1d0 SUPPLEMENTAL AIR. HL -POD UNCORRECTED FOR TEMPERATURE: 1_337 GPD/SO FT TEMP CORRECTION FACTOR FOR 55 F: i. HL --POD TEMP CORRECTED FOR 55, F: GPD/SG FT HL -NIA N UNCORRECTED FOR TEMPERATURE: .87% GPD/ SQ FT TEMP CORRECTION FACTOR FOR 55 F: .98 HL-Nt I. -N TEMP CORRECTED FOR 55 F .31 GPD/S0 FT {iV R iat_1. HYDRi;t_ll . I C LOAD (COt-11-11 H I NG HL -BOD EiL -!'JI l ;I`J } : . 5 (0P1 ,; c-:�.: F L r:EL)UIRED TOTAl- HEDIA SURFACE: 42. SO F1 I9i�SS I_UfiDIN(i: , 1 ;_4` ,'i ii`r 1' C. F? .� �.V F� DEFINITIVE DESIGN DESCRIPTION . KENSINGTON AT FLAX POND _MaSsaChUSGitS DCPT tment Q : MASSACHUSETTS nvironmEntal Quality En ine TH YARMOUTH, A. RAYMOND Gale EngineeringCompany,Inc. L_ EJ n��rJFa 8 School Street P.O. Box 21 Weymouth, Massachusetts 02189 (617) 337-4253 SAPS€TA` ... Scale: Deb: Drawn: Reviewed: Job No: NO SCALE 8-6-87 HBE ARQ 4679_ Ci t W' iDWG. NU . 10 a v DEFINITIVE DESIGN DESCRIPTION DEFINITIVE DESIGN DESCRIPTION DEFINITIVE DESIGN DESCRIPTION Unit Name :Alum Mixer Unit Name Alum Flocculator Unit Name Secondary Clarifier Unit Designation : ME - 3 Unit Designation : ME - 4 Unit Des ignat ion: ME -5 Purpose of Unit Operation Purpose of Unit Operation Purpose of Unit Operation To provide mixing of alum with the forward flow wastewater, To provide flocculation of alum/wastewater mixture prior to Provide separation of the solids from the treated wastewater. entering the clarifier. entering the secondary clarifier. Products of the clarifier are going to be a clarified effluent overflow, scum from the water's surface and a secondary sludge underf low. Design Criteria Design Criteria o Three minute detention time in tank for mixing alum and o Fifteen minute detention time for flocculation of alum and wastewater. (24,000 gpd x 1/1,440 gpm/gpd x 3 min. = 50 gal.) wastewater. (24,000 gpd x 1/1,440 gpm/gpd x 15 min. = 250 gal) Design Criteria o Provide sufficient mixing for dissolving liquid alum in o Provide sufficient contact for flocculation of aluminum o Surface loading rate = 400 gpd / sf wastewater. phosphate precipitate. o Sidewater depth = 8 feet o Clarifier sizing: 24,000gpd / 400 gpd/sf = 60 sf (8.7 ft dia.) ti Facility Description and Pertinent Information Facility Description and Pertinent Infornztion Facility Description and Pertinent Information o Steel tank of 50 gallon capacity, with proper surface preparation. o Steel tank of 250 .gallon capacity, with proper surface o Dimensions: 10 feet in diameter by 8 feet sidewater depth preparation. o Mixer to provide flash mixing of wastewater and alum o Circular clarifier with mechanical sludge collection and scum solution. Mixer to be properly mounted on tank. o Mixer to provide flocculation of wastewater and alum removal solution. Mixer to be properly mounted on tank. o Mixer shall be Lightnin Model No. XD30. o Air lift pumps for sludge and scum. - o Flocculator shall be Lightnin Model XJ30. o Clarifier shall be Hydro -Aerobics Model MC -10. s I r DEFINITIVE DESIGN DESCRIPTION DEFINITIVE DESIGN DESCRIPTION DEFINITIVE DESIGN DESCRIPTION Unit Name Rapid Sand Filter Unit Name Sludge Storage Tank Unit Name: Dosing Siphons Unit Designation ME - 6 Unit Designation : T - 3 Unit Designation : ME - 7 A&B Purpose of Unit Operation : Purpose of Unit Operation Purpose of Unit Operation Provide a filtered, tertiary effluent for subsurface disposal. Provide liquid/solid separation and sludge storage for clarifier Provide a dosing action of effluent to subsurface disposal Unit shall maintain effluent quality by employing dual graded media underflow and scum as well as rapid sand filter backwash. Unit facilities. Dosing action, as opposed to continual feed, will and backwash and scour mechanisms for recharge of media will also provide some solids reduction through anaerobic allow for a surcharge of .the subsurface disposal facilities. This digestion. will prevent any short-circuiting of the effluent through the field. Design Criteria o Automatic backwash filter o Hydraulic loading shall not exceed 3 gpm per sf at average day Design Criteria flow rate. Design Criteria o 6 hours detention time at ADF conditions o Proposed filter is duplex with 11 sf surface loading area per o Provide alternating dosing cycles for each half of the unit: (18 gpm I 11 sf = 1.64 gpm/sf) o H2O loading disposal system. o Dose each half of disposal system at a rate of five cycl,eg per �-�, `• day at approximately 2,400 gallons per cycle. r, Facility Description and Pertinent Information Massachusetts Departmel EFINITIVE DESK DESCRIPTIO .Rapid Sand Filter includes: E11VIrt?Ctt'1'1@Citai Quality EC1 . {fiBCl''.. c (� Dual media (sand & anthracite) KENSI' GT® AT FLAX POND Clear well - Surge tank and drain Facility Description and Pertinent Information ate- - YAR�nouTHssacHUS-rTS Facility Description and Pertinent Information : Backwash and surge tankum s -o Alternating, duplex dosing siphons installed in H10 precast P P Sludge storage tank will be a 6,000 gallon, precast concrete tank concrete tank. Air blowers and scour diffusers with two 24 inch diameter manhole accesses. o Siphons shall be six inch diameter, with the average capacity Automatic controls to operate backwash and scour systems of approximately 475 qpm with 30 inch tank drawdown. Rapid sand filter shall be Hydro -Aerobics Model HF -25C. RAYS `Az Gale Engineering Company, Inc. GALE A.ZZ Q N L S ir . 8 School Strost P.O. Box 21 We mouth, Massachusetts 02189 617 ; 337-4253 3: scG« t ow Dmwrt paykwmd Job Na. NO SCALE 8-6-87 HBE ARQ 4679 F' R h '14 9 PWG. No. 1 DEFINITIVE DESIGN DESCRIPTION DEFINITIVE DESIGN DESCRIPTION DEFINITIVE DESIGN DE>;CRIPTION Unit Name Methanol MeteringPum P . Unit Name .Anoxic Rotating Biological Contactor Unit Name Alum Metering Pump Unit Designation : P - 2 Unit Designation :ME - 2 g Unit Designation P 3 Purpose of Unit Operation Purpose of Unit Operation P p on Purpose of Unit Qperation . . Meter methanol.. into the influent of the anoxic RBC._ Methanol is Provide denitrification to aerobically treated and nitrified Meter alum ( aluminum sulfate, C Al2( SO4)31 into the inf luent the utilized to provide a supplementary carbon source for denitrif ication. This effluent from aerobic RBC. Operation of anoxic RBC is similar to of secondary clarifier. Alum is utilized to coagulate and precipitate is necessitated by the nearly total carbonaceous BOD removal in the RBC. aerobic unit with the exception of the rotating disc being totallyhos P P horus from the wastewater. aerobic immersed in the wastewater. This creates an anoxic, or lacking in 4 J oxygen, environment and the establishment of anaerobic bacteria on LL the discs.. It is anaerobic bacteria that are required to conduct W denitr if icat ion. Design Criteria Design Criteria o Provide 4.0 lbs. of Methanol per pound of nitrate nitrogen. Design Criteria o Pump shall be sized to dose alum at a rate that will provide a ratio of 2:1 aluminum to phosphorus on a molar basis. o At 30 mg/1 ofnitrate nitrogen, the maximum nitrate loading will be o Influent Nitrate Nitrogen _ 30 m /1 g g o Capacity range of metering pump will be Q.5 gpd to 5.0 gpd. approximately 6 lbs/day. o Methanol required will be 24 lbs/day or less than 4 gpd. o Effluent Nitrate Nitrogen _ < 5'mg/1 o Pump shall be a positive displacement, diaphragmtype metering o Surface Loading Rate = 4.25 gpd/sf (see attached design pump. loading chart - Autotrol Figure C-11) o Minimum surface area : 24,000 gpd / 4.25 gpd/sf = 5,650 sf Facility Description and Pertinent Information o Methanol will be supplied in 55 gallon drums. The metering Facility Description and Pertinent Information Facility Description and Pertinent Information pump will draw directly from the active drum. The pump will be manually calibrated, based on analysis o RBC unit will be a two stage, modular unit with — JU sf of Alum will be supplied in 55 gallon drums. The metering pump will of wastewater characteristics. Operation of the pump will be by a float surface area. Loading rate is 3.0 gpd/sf, due to 8,000 sf unit being smallest sized draw directly from the active drum. The pump will be manually switch located in the aerobic RBC's influent well. The float practical unit. Rearation will be provided following the anoxic RBC. calibrated, based on analysis of wastewater characteristics. switch will provide an on/off operation of the pump. Operation of the pump will be by a float switch located in the o Anoxic RBC shall be an Autotrol (Envirex) Bio -Module, Model' aerobic RBC's influent well. The float switch will provide an on/off operation of the o Pump shall be Liquid Metronics, Inc., Series A17. No. 815 -052 -SS. pump. o Pump shall be Liquid Metronics, Inc., Model A17. f JOB-Ll.._�.51N5 ?T___._..1.._.------------- GALE ENGINEERING COMPANY, INC. - JOB 41 ���----..l.y.�i.- 8 School Street, P.O. Box 21 SHEET No -___ _.__._--_ _ ._-_____ of-_ __.-.. _. __ __- ___ .. GALE ENGINEERING COMPANY, INC. WEYMOUTH, MASSACHUSETTS 02189 /-C^J � Q 8 School Street, P.O. Box 21 SHEET No _ _-- - of Fill} 337'4253 CALCULATED BY ---f_! _----- ---- DATE .. _--- ---_ ' - _-- WEYMOUTH, MASSACHUSETTS 02189 ,c��1 - CHECKED BY __. -'---- ------------ DATE -----i------- --- (617) 337-4253 CALCULATED BY .Jj �.C---�'S---------- DATE _ ----------- --- SCALE. Figure C-11 CHECKED BY __. __..._ _ _- ._ ._ _., _._ ---__- ___ DATE 1310 -SURF PROCESS SCALE_-_. /-eAt4C4'Ire DENITRIFICATION OF DOMESTIC WASTEWATER ' Savrce � /��c,wt Y'eyuJ`re�e�-rT� �o✓- PL�vS�O�ir�s �er.,<-rov4f WASTEWATER TEMPERATURE > 55oF /= r .,1 J°G F �itla s �c u,a ��r %-i' <et Twe c.�r is K f /'e 5 i 9 h INFLUENT NO3-N, MG/L W14 .s -le u,.� )t er �f e ..r -r 4P' *-P f /9/9 �� l�IakL,al (,a9 7-c-4) 30 25 20 18 Foe ::r. J Z 6 M O Z 5 Z w D 4 J LL LL W 2 0 S4 4.2-6 HYDRAULIC LOADING. GPD/FT, ' KENSINGTON AT FLAX POND v4w44e qF j�(vwt _ = 345 A), SOUTH SOUTH YAR OUTH ASSAG USETTS A. RAYMONDlr Of FIN �� SANITAR,Y rto sevt Gale Engineering Company, Inc GALE 8 School Street • P.O.' Box 21 Weymouth, Mae--achusetts 02189 617 337-4253 Scale: Dow Drawn: Fievbwed Job No: A00001 00010 Ao 000 " 0000'*� 0000 01000010010000000000007 '00� 2 4 1 6 8 10 12 14 1 16 'q' /U/u'"'� 4v5a-)e Q9 uivq[eH�- of 2 �vw✓f� 4 1 , "-I " " V —1 iia 6 Lt t ��f ✓ /4- 67 Ave e4 15 r. t{ �'-. i7 O S �4 / v3 .. .r_e S icy - 14 /or , { 12 3 ff 10 a -y '435sachusetts Department z_ ; x Z a �b� �y _ 3 4� is/�*��r. viror�ca�entt ua °f 31 iity Enineeri; r 6 , ws 9� X 3 �8 �6. /:� = g. 2& s. �I DESIGN ES( RIPTION Maucrlwl .,.es/i« cao� wa Diol NO SCALE 8-6-87 HBE ARQ 4679 M0.lGX.'12fN 1 N! nsJ W G— Mm 01471 DWG. I,tO. 12 ROTATING BIOLOGICAL CONTRACTOR RBC ASSEMBLY a. The aerobic RBC shall consist of 51,200 sq. ft. e. Chain casing shall completely enclose the chain drive nominal media surface area. Media shall be arranged and on the aerobic RBC shall be adequately water and for four treatment stages with 12,250 sq. ft. in each oil tight to contain an oil bath. Chain casing shall of the first two stages and 14,450 sq. ft. in each include three shaft seals and all mounting remaining stage. components. Chain casing is to be plastic reinforced fiberglass with stainless steel fasteners and carbon b. The anoxic RBC shall consist of 8,000 sq. ft. nominal, steel brackets coated for corrosion protection media area. Media shall be arranged for two treatment according to this specification. stages with 4,000 sq. ft. of media in each stage. f. The drive system shall be factoryassembled and C. The RBC shall be factory assembled and consists of installed on steel tankage by means of the drive base media assembly, central shaft, chain sprocket, feed plate. The drive base shall be fabricated from buckets, and pillow block bearings. The RBC shall be commerical quality steel plate and coated for installed in steel tankage furnished by the RBC corrosion protection according to this specification. manufacturer. The aerobic RBC shall be driven at 1.8 The drive base plate shall include stainless steel rpm in a counterclockwise direction (viewed from drive studs, nuts and washers for securing the drive end) to accommodate feed buckets. The anoxic RBC assembly. shall be driven at 5.0 rpm in a counter clockwise direction. TANKAGE d. Media assembly shall consist of abutting thin-wall" a. Tankage shall be formed and welded of commercial sheets of high density polyethylene material with quality steel and suitable angles. All welds shall be carbon black added to the compound to provide continous. Steel fabrication shall be of a minimum of untraviolet protection. Sheets shall be vacuum formed 1/4" steel plate. Tankage shall be coated for and integrally welded to provide a series of corrosion protection according to this specification. concentric passages. Media shall be integrally welded to injection molded polyethylene hubs designed to b. Treatment stages are separated by bulkheads which are support the media from the central shaft. to be welded to the tank. Bulkheads are to have an orifice so sized that head loss shall not exceed 6mm e. Centrad shaft shall be square and formed from (1/4") per stage. structural steel which meets or exceeds the requirements of ASTM A-36. The tolerance specified in C. Drive pad on tankage shall be equipped with four ASTM A-501 shall apply. Shaft wall thickness shall be stainless steel jacking screws to provide an 25 mm (1"). Stub ends shall be cast of steel which adjustable distance between centers of RBC shaft and meets or exceeds the requirement of ASTM A-216 and drive shaft for the purpose of controlling tension in machined to a surface finish of 1.6 to 3.2 microns (63 the drive chain. Tank is to be equipped with to 125 micro -inches). Central shaft shall be coated stainless steel studs, nuts and washers for mounting for corrosion protection according to this drive base and pillow block bearings. specification. A 120 tooth sprocket shall be bolted and doweled to the shaft. d.' Tankage shall be equipped with a straight -edge effluent weir with vertical adjustment corresponding f. Four (4) feed buckets shall be included with the to the limits outlined in the applicable shop drawings. aerobic RBC. Each bucket shall have a nominal delivery of 7.35 gallons based on maximum liquid level e• A flow divider shall be furnished and installed on the in the feed well (13 in. below RBC centerline), aerobic RBC as shown on the plans. The flow divider resulting in 80,500 gallons per day. The delivery of shall consist of a dividing channel with an adjustable the feed bucket system shall be adjustable by adding vane and two exit connections. The adjustable vane or removing plugs provided on two of the buckets or shall have a rounded leading edge and a "v" hinge at completely removing one or more buckets. Any the wall separating the exit connections. A locking combination shall be used without impairing the device shall be provided for the vane to adjust and operation of the RBC. The feed buckets shall be divert the flow in any nroportion to either exit fabricated from commercial quality steel and coated connection. Flanges shall be furnished on the exits for corrosion protection according to this it of the flow divider for connection of the field piping. specification. Buckets shall be secured to the RBC by stainless steel fasteners. f) Flanges (125 psi, C.I., ANSI A21.10) shall be fabricated to tankage, as shown on Drawings, for g. The RBC pillow block bearings shall be grease connection to all process piping. lubricated, self -aligning tapered roller bearing and 5 have two radial lip seals and two locking collars. The g. The anoxic RBC shall be covered by raised pattern bearings shall be factory installed on the central floor plate, as specified, gasketed and bolted to shaft with a non -expansion type bearing mounted on the tank. Frame and supports shall be as required. drive end and an expansion type on the idle end. A load cell kit shall be installed in the expansion type BUCKET GUARD (Aerobic RBC) bearing. The kit shall be used in conjunction with a hydaulic weighing assembly for determining RBC Bucket guard shall be supplied by the RBC manufacturer to loadings. prevent possible injury to the personnel where the buckets enter the tank.' The guard is to be shipped loose and h. A coarse bubble aerator shall be installed in the finish assembled and installed on tankage by Contractor. anoxic RBC's.effluent well and connected to the plant The guard is to be fabricated from expanded metal sheet and air system as shown on Drawings. Aerator shall be suitable angles, and is to be coated for corrosion capable of rearating RBC effluent to a dissolved protection according to this specification. Assembly and oxygen level of 2.0 mg/1. mounting hardware shall be stainless steel. DRIVE SYSTEM CORROSION PROTECTION a. • Motor Characteristics: a. Central shaft for the RBC assembly shall be coated with a cross-linked epoxy -phenolic material, Aerobic RBC Anoxic RBC (Wisconsin Protective Coating Corp. Plasite No. 7122) 2 0.5 or equal. Coating thickness shall be at least 12 mils Horsepower: Voltage 208 208 according _to Steel Structures Painting Council Frame Size: 145TC - Specification No. SSPC-SP-5-63. Enclosure TEFC TEFC 3 3 b. Media retainer plates, drive base plate, feed buckets, Phase: Hertz: 60 60 bucket guard and mounting components for the chain RPM: 1800 1200 casing are to be hot -dip galvanized per ASTM A-123. Service Factor: 1.00 1.00 C. Tank interior and exterior shall be coated with an. Specialities: Location of conduit box to epoxy material (Wisconsin Protective Coating Corp. be at 3:00 o'clock when Plasite No. C-725 or equal). Coating thickness shall motor is viewed from shaft be a minimum of 12 mils (.012 in.) on parts of tankage position). end) ( P directly exposed to wastewater, and 8 mils (.008 in.) on parts of tankage not directly exposed to b. Motor torque characteristics comply ri ics shall with NEMA p y wastewater. Surface of tank interior is considered design B and insulation with NEMA class B. directly exposed to wastewater and shall be prepared with a white metal blast according to Steel Structures C. The gear reducer system for the aerobic RBC shall Painting Council Spec. No. SSPC-SP-5-63. Surfaces of include•• tank exterior, including bearing and drive pads, are considered not directly exposed to wastewater and 1. C -Flange, combination reduction, reducer with 86:1 shall be prepared with a commercial metal blast ratio, 1.1 hp rating and 1.4 service factor., according to Steel Structures Painting Council Spec. No. SSPC-SP-6-63. 2. 11 tooth drive sprocket shall be hardened to 30 Rockwell C minimum. 3. No. 120 roller chain. d. The gear reducer system for the anoxic RBC shall be as required. ■ i CIRCULAR CLARIFIERCONTROLS AND INSTRUMENTATION GENERAL CONTROL PANEL REMOTE 'ALARM rt � �✓ � All controls will be located in one NEMA 12 enclosure A remote alarm light and horn with alarm silence A circular 10 ft. minimum diameter clarifier shall be n inside diameter of 10 ft. and side water to be mounted in the control room. as .shown on button shall be located in the main residential provided with a n s Drawings. The control panel shall contain the complex building at a location directed by Owner The depth of 8 ft. 2 in. including: structural steel support following units.•Contractor shall be responsible for running the alarm bridge, drive unit, sludge scrapers, serrated weir trough, g m and wiring into the treatment plant building, between circular steel baffle, influent trough, surfaceski mer steel sg scraper lud e ra er and steel wall). a. Main disconnect with door interlock. equipment installed by Contractor and for installation P of alarm in main complex building. He shall be b. Controls for Influent Pumps shall be as specified responsible for coordination with others. This alarm STRUCTURAL STEEL on drawing No: 14. Pump controls may be in panel shall sound for all alarms. All structural steel used in f brication of the equipment specified' herein or in a separate panel, located „ shall .conform to the requirements o£ Standard adjacent to this panel. FLOW RECORDER Specifications for Steel for Bridges and Buildings" ASTM designation A-36. All shop welding shall conform to the C. Controls for RBCS consisting of motor starter a. The flow recorder shall be mounted on, and measure g fuses, ON-OFF switch, and run lights. flows at, the effluent latest standards of the American Welding Society. 'flow measuring chamber located on the teritary treatment system. The SUPPORT BRIDGE d. Controls for Mixers consisting of motor starter' flow recorder shall be calibrated to measure peak fuses, ON-OFF switch and run lights. flows of 50,000 gpd over a 60 degree V -motor.. The drive unit support and bridge shall consist of two weir. Flow recorder shall be Stevens Model 16R or beams spanning the top of the tank includ4ng e. Controls for Alum and Methanol Metering Pumps approved equal. cross -supporting members, handrails and grating walkway. consisting of motor starters, fuses, HOA switches, h inch nominal handrails shall be anchored to the for pumps and float switch._ The mei:ering pumps; The 1.5 b. The flow recorder shall be provided with the will operate in the automatic mode when the float structural beams. A service walkway extending from one end switch in aerobic RBC influent well is closed by a following characteristics/accessories: of the. bridge. to the Tertiary Sand Filter shall be .provided minimum level of water in well. by the installing contractor. 1. 7 -digit totalizer. f. Controls for Clarifier Drive Mechanism consisting 2• A.C. synchronous motor. ACCESS of motor starter, fuses, ON-OFF switch, and torque 3. Standard 50 foot by 4 inch strip chart, with overload shutdown with alarm light. The alarm time scale of 10 inches per day with Access stairs shall be provided to the clarifier bridge at will be sensed through a Programable Controller disposable cartridge pen. the location shown on the plan. These access stairs shall (P.C.) and acknowledged at the main control panel. 4. High impact plastic case and cover with be provided by the installing contractor. neoprene gaskets. g. Airlift System Controls consisting of blower motor 5. Bracket for,approproate mounting. DRIVE UNIT starters, fuses, HOA switches for blowers and 6. Properly sized float with stainless steel solenoid valvesON-OFF override switch for beaded float line. , The drive unit provided will consist of a vertical weather blowers, a hold -alternate switch for blowers, and 7. Case heater. proof motorized triple reduction speed reducer driven by a appropriate control to accomplish the following, 8. Two spare pen cartridges and five spare approp 0.5 HP, 208 volt, three phase motor. The speed reducer strip charts. will include an integral torque control unit. The drive operation: unit will be flanged coupled to the scraper torque shaft. 1• Scum airlift air line solenoid opens. The drive and torque unit will be designed and set for a torque of 1800 inch pounds atthetorque shaft, a torque of 2 Blower Starts 2250 inch pounds for alarm torque, and a torque of 2700 inch pounds for motor cutoff. The torque control unit 3• Scum airlift solenoid remains open for an includes contacts for remote hook-up of an alarm light or adjustable period of 0 to 10 minutes through thefor indication of an overload condition, if one occurs. the P.C. INLET STILLING WELL 4. Scum airlift solenoid closes and e A rotating influent loading well of 3 feet in diameter simultaneously sludge airlift solenoid opens shall be provided to dissipate influent velocity and and remains open for an adjustable time prevent short circuiting. A'6 inch diameter pipe shall be period of 0 to 50 minutes, through the P.C. g provided for discharge of influent into the stilling well. I o Connection of 6 inch pipe to,Iprocess piping shall be by 125 5. Sludge airlift solenoid timer shuts down psi ANSI flange. blower and closes sludge airlift solenoid, 1 thus alternating the blowers for the next SLUDGE AND SCUM RETURN air usage, this will give equal wear on thel two blowers. The alternation for the two y blowers is accomplished through the P.C. An airlift pump system shall be provided for the sludge and scum returns. This system Shall consist of two (2) airlift puma blowers mounted on the tertiary sand filter and two (2) ,air line solenoid valves to properly direct the air ' E flow. The blowers shall also serve the tertiary sand filter. Piping extensions to the clarifier and sand filter are to be provided by Contractor. h. Tertiary Sand Filter controls consisting of motor starters, fuses for pumps and blower, HOA SLUDGE SCRAPER switches, run lights, cycle counter for each backwash pump, push buttons for each cell to The sludge scraper assembly shall consist of two sludge manually initiate the backwash cycle, low water scraping arms fabricated of structural channel. The cut off on backwash pumps, and the appropriate assembly shall rotate in a clockwise direction with control system to provide the sequence of vertical and horizontal positions being controlled by operation as follows: turnbuckle equipped tie rods. Each scraper arm shall have enough neoprene squeegees to effectively move sludge into When the resistance of the flow through the the center sludge hopper. The sludge shall be removed from filter media causes the water level over the the clarifier by means of an airlift pump. The filter cells to rise to a predictable level, manufacturer shall provide the appropriate airlift pump and the filter cell float switch will initiate blower for proper operation. the automatic air scour/backwash cycle. This cycle is controlled by a programmable SURFACE SKIMMER controller in the control panel. The cycle is set up for an air scour of 4 minutes, a A surface skimmer consisting of a steel channel with a settling time of 2 minutes, backwash time of neoprene skimmer and a.scum trough shall be provided for A minutes, and a final settling time of 22 collection of the scum collected by the skimmer arms. The minutes. scum shall then be discharged from the clarifier by means of an airlift through a 2 inch diameter pipe. The i. A single alarm horn with silence button and manufacturer shall provide the appropriate blower. TEST -OFF -AUTOMATIC for all alarm functions. EFFLUENT WEIR ASSEMBLY j Start contactor, fuses, adjustable timer capable of running building exhaust fan between 0 to 60 A steel weir trough shall be furnished with serrated weir_ minutes of each hour and run light. plates fabricated from 3/16 inch steel plate allowing up to and including 2 inches of adjustment. The weir trough k. The Programable Controller (PC) shall be a General Electric shall be supported by angle brackets firmly fastened to the series 1 type. clarifier wall. A 6" diameter effluent steel pipe shall be furnished with the weir trough and shall have a 125 psi, fabricated for connection to process piping. ANSI .Flange P � 0 V C� SHOP PAINTING SD CIFIQAT ONS in surfaces to be painted shall be properly prepared '� All su \E S' GT® T FLAX workman -like manner. Cleaning shah meet ..the requirements ant 0�, Council Specification '"'P'artm_ of .the Steel Structures Painting p �Se��,g SSPC-SP5-63T White Metal Grit Blast on _the interior surface ►.c�S nel " 0 �g�1�Y U Y/ Q OUB MASSACHUSETTS and SSPC-SP6-63T Commercial Grit on the exterior. The tank Environmental QSOUTH 1 Al 1 y will beP ainted with Koppers Superservice Bitumastic 12 mils thick. RAYMOND R ale En eeng Pan n Com Inc. GALE Company, QUINN SANITARY = tr 8 School Street P.O. Box 21 Weymouth, Massachusetts 02189 617 337-1253 a► No. 31361 r. ScelK DeW Drawn: PAV w► d Job Na. NO SCALE 8-6-87 HBE ARID 4679 DWG. N0. 13 INFLUENT PUMPS kTING CONDITIOUS LEVEL CONTROLS shall have a capacity of 65 GPM at a total a. Sealed float type mercury switches shall be ;supplied 32 feet when operating at 1750 RPM and shall to control water level in the Flow Equalization Tank. Le of passing 2 inch spherical solids. Pump The mercury tube switches shall be sealed in a solid` ill be 2.0 Horsepower, 1750 RPM, 3 Phase, 208 polyurethane float for corrosion and shock Hz. resistance. The support wire shall have heavy Neoprene jacket and a weight shall be attachsd to cord above the float to hold switch in place in tank. Weight shall be above the float Lo prevent sharp bends :actor shall furnish and install the Flow in the cord when the float operates under water. The 7 tank, which shall function as the pump float switches shall hangin the tank supported only pbo in accordance with the,Drawings. by the cord that is held to the junction box. Four . float switches shall be used to control level. One ?LIMPS for pump turn-on and for pump turn-off, one for both shall be of the sealed submersible pumps turn-on and one for high water alarm. 'a Additionallyhigh level RBC feed well float switch )al type. Pump casing shall be fitted with will be provided. far ring. Pump shall have two mechanical :h oil chamber between the seals. Rotating b. On rise of water level in Flow Equalization Tank, the �s shall be carbon and stationary seal faces lower mercury switch shall first be energized,.then gamic. All metal parts of seal including upper level switch shall next energize and start lead call be 303 Stainless steel. pump, with lead pump operating, tank level shall lower )r shall be of the sealed submersible type to low switch turn-off setting and pump shall stop. idard insulation for operation in Alternating relay shall index on stopping of pump so Lectric oil to give better heat dissipation that lag pump will start on next operation. If tank �r bearing life. Motor starter shall be held level continues to rise when lead pump is operating, with removable end ring so that it can be override switch shall energize and start lag pump. =or repair without heating outer shell or Both lead and lag pumps shall operate together until gess. Motor housing shall be filled with low level switch turns off .both pumps. If one pump lectric oil and no pressure balancing devices should fail for any reason, the second pump shall .used. Pump shaft shall be of 303 operate on the override control and if level rises .motor Steel. Pump shall be a standard production above override control, alarm shall signal. All level 1 attached rail guides and discharge elbow. switches shall be adjustable, for level setting, from les shall be fastened to pump so that all the surface. Loads will come on the guide supports and not c.' A high level RBC feed well signal will shut off imp or motor housing. A lifting chain and influent pumps for an adjustable time period of Ll be supplied for each pump. Motor shall be between .0 to 99 minutes. A two pump turn-on signal with heat sensing units attached to motor will override the timed shutdown period. The heat sensing units shall trip starter if ,-rheats. kLING FLANGE urge of each pump shall be fitted with a n-tvpe hvdraulically operated sealing flange.