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64-116 - 72 Flint Street - CONSERVATION COMMISSION '- DEP �ti-/l� S � - -- -- -- --.-----�' r _�: Form 5 DECE Fle No. 64-116 (To be provided by DEUE) Salem Commonwealth city/Town of Massachusetts Appliewd Salem Suede Order of Conditions Massachusetts Wetlands Protection Act G.L. c. 131, §40 Salem Conservation Commission . Fro Salem Suede, Inc. same To (Name of Apples) (Name of property owner) Address 72 Flint Street Address This Order is issued and delivered as follows: ❑ Eby hand delivery to applicant or representative on April 30, 1985 (date) ❑ by certified mail, return receipt requested on (date) This project is located at 72 Flint Street, Salem Essex South The property is recorded at the Registry of Book Page Certificate(if registered) The Notice of Intent for this project was filed on March 20, 1985 (date) The public hearing was closed on ¢pril 25, 1985 (date) Findings The Salem Conservation Commission has reviewed the above-referenced Notice of Intent and plans and has held a public hearing on the project. Based on the information available to the Commission at this time, the Commission has determined that the area on which the proposed work is to be done is significant to the following interests in accordance with the Presumptions of Significance set forth in the regulations for each Area Subject to Protection Under.the Act(check as appropriate): ❑ Public water supply ❑ Storm damage prevention ❑ Private water supply x�3 Prevention of pollution ❑ Ground water supply ❑ Land containing shellfish xO Flood control ❑ Fisheries 51 95 Therefore,the Salem Conservation Commission hereby finds that the following conditions are necessary, in accordance with the Performance Standards set forth in the regulations,to protect those inter- ests checked above.The Commission orders that all work shall be performed in accordance with said conditions and with the Notice of Intent referenced above.To the extent that the fol- lowing conditions modify or differ from the plans,specifications or other proposals submitted with the Notice of Intent,the conditions shall control. General CondItions 1. Failure to comply with all conditions stated herein,and with all related statutes and other regulatory meas- ures, shall be deemed cause to revoke or modify this Order. 2. This Order does not grant any property rights or any exclusive privileges;it does not authorize any injury to private property or invasion of private rights. 3. This Order does not relieve the permittee or any other person of the necessity of complying with all other applicable federal,state or local statutes,ordinances, by-laws or regulations. 4. The work authorized hereunder shall be completed within three years from the date of this Order unless either of the following apply: (a) the work is a maintenance dredging project as provided for in the Act;or (b) the time for completion has been extended to a specified date more than three years,but less than five years,from the date of issuance and both that date and the special circumstances warranting the extended time period are set forth in this Order. 5. This Order may be extended by the issuing authority for one or more periods of up to three years each upon application to the issuing authority at least 30 days prior to the expiration date of the Order. 6. Any rill used in connection with this project shall be clean fill, containing no trash, refuse,rubbish or de- bris, including but not limited to lumber,bricks, plaster,wire, lath, paper, cardboard,pipe, tires,ashes, refrigerators, motor vehicles or parts of any of the foregoing. 7. No work shall be undertaken until all administrative appeal periods from this Order have elapsed or, if such an appeal has been filed, until all proceedings before the Department have been completed. 8. No work shall be undertaken until the Final Order has been recorded in the Registry of Deeds or the Land Court for the district in which the land is located,within the chain of title of the affected property. In the case of recorded land, the Final Order shall also be noted in the Registry's Grantor Index under the name of the owner of the land upon which the proposed work is to be done. In the case of registered land, the Final Order shall also be noted on the land Court Certificate of Title of the owner of the land upon which the proposed work is to be.done.The recording information shall be submitted to the Commission on the form at the end of this Order prior to commencement of the work. ~ 9. A sign shall be displayed at the site not less than two square feet or more than three square feet in size bearing the words, "Massachusetts Department of Environmental Quality Engineering, File Number 64-116 10. Where the Department of Environmental Quality Engineering is requested to make a determination and to issue a Superseding Order, the Conservation Commission shall be a party to all,agency proceedings and hearings before the Department. 11. Upon completion of the work described herein, the applicant shall forthwith request in writing that a Certificate of Compliance be issued stating that the work has been satisfactorily completed. 12. The work shall conform to the following plans and special conditions: a2 96 Plans: Title Dated Signed and Stamped by: On File with: Site Plan, Salem Suede, Inc.. Paul F. Mulloney Conservation Commission Sheets 1-4 May 1984 Special Conditions(Use additional paper it necessary) 1. Work shall conform to above-referenced plans 2. Work shall further conform to submitted addenda to Notice of Intent and 0 & M Manual for Salem Suede, Inc. , prepared by Paul Mulloney, P. E. of SP, Engineering, Inc. 3. A minimum safety factor of 1.5 shall be employed in .the anchoring and construction of storage tanks. t ....................................................................................................................................................................................... (Leave Space Blank) 5.3A 97 Salem Conservation Commission Issued By Sign e(s) This Order must be signed by a majority of the Conservation Commission. 25 day of April 19 85 before me On this personally the above-named arsons to me known to be the person described in and who executed the foregoing instrument and acknowledged that he/she executed the sam as his/heFfree act d deed. 9-9-88 Notary Public My commission expires The a?Wlcant,the owner.any person aggrieved by this Order,any owner of lard abutting the land upon which the proposed work is to t»dime or any ten residents of the city or town in which such land is located are hereby notified of their right to request the Department of Errvscromental Quality Engineering to issue a Superseding Order.providing the request is made by certified mail or hand delivery to 60 Department within ten days from the date of issuance of this Order.A copy of the request shall at the same time be sent by certified naafi or hard delivery to the Conservation Commission and the applicant Detach on dotted llrteand submit to the Salem Conservation Commission prior to commencement of work. Issuing Authority To Please be advised that the Order of Conditions for the project a and File Number has been recorded at the Registry of has been noted in the chain of title of the affected property in accordance with General Condition B on 19_ It recorded land,the instrument number which identifies this transaction is II registered land,the document number which identifies this transaction f Applicant _ Signature 5-4A O&M MANUAL For Salem Suede , Inc . 72 Flint Street Salem, Massachusetts 01970 Prepared by : . Paul Mulloney, P.E . SP, Inc . 29 Congress Street Salem, Massachusetts 01970 V General For Salem Suede , Inc . , the pretreatment facility is designed to treat the wastewater produced by the facility within an 18 hour work day . The personnel involved in the supervision , operation and maintenance of the pretreatment systems is Jim Shildneck . Mr . Shildneck is familiar with overseeing , running and maintaining process equipment . Mr . Shildneck is also familiar with chemical processes used in the tanning industry . It is the responsibility of the owner that a back-up person be trained and capable of operating the pretreatment system in the event of the absence of Mr . Shildneck . S stem Overview The pretreatment system consists of the following components and operations . A) Wastewater Treatment 1 . Wastewater from the tannery flows by gravity to the Pump Pit . 2 . In the pump pit , the pH is monitored , caustic soda is pumped into the pit for pH adjustment and the wastewater is agitated to prevent settlement of solids . The pH of the wastewater after addition of the caustic soda is neutralized within the range of 8. 0 to 9 . 0 . The start/stop cycles of the caustic soda pumps are automatically controlled by adjustable set points on the pH monitoring system. The pH monitoring equipment and caustic system are existing equipment . -2- 3 . Based on the liquid level in the pump pit, the wastewater is pumped by the raw wastewater pump to the mixing chamber at a maximum rate of 200 gpm. 4 . Whenever the raw wastewater pump is operating , alum and polymer will be pumped to the mixing chamber by chemical metering pumps . When the raw wastewater pump stops pumping the chemical metering pumps will also be stopped . 5 . In the mixing chamber , the alum is added near the wastewater inlet and is mixed with the wastewater by a mechanical mixer . Polymer is introduced to the waste stream just prior to the inlet •to the settling tank . 6 . In the settling tank , sludge is removed from the bottom of the tank with a sludge header pipe on the moving bridge system; 9 P P 9 9 Y oil and grease is removed from the top of the tank with a skimmer system on the moving bridge . The clarified wastewater flows over the weir and to the proposed flume. 7 . At the flume , the flow and the pH of the treated wastewater is monitored and recorded prior to its discharge to the sewer system. B) Sludge Handling 8 . The sludge from the settling tank is pumped to the sludge storage tanks using the sludge transfer pump. 9 . The oil and grease is skimmed from the surface of the settling tank using a scum collection trough on the moving bridge and pumped to a sludge storage tank using the sludge pump. -3- 10 . Sludge and skimmings are pumped , as needed , to one of the storage tanks for 7 to 14 days , the supernatant from the storage tank is discharged back into the mixing chamber . 11 . When a sludge storage tank becomes full and the sludge in the tank reaches an adequate density , the supernatant is pumped back to the mixing chamber and the sludge is pumped to a truck by the thickened sludge pump for offsite disposal . Descri tion of 0 erators Duties The normal operation of the pretreatment system should take approximately one to two manhours per day and will include the following duties : A) To be performed at the start of the day 1 . Mix dry polymer with water and pour the diluted polymer into the polymer storage tank . 2 . Check chemical levels in all tanks . 3 . Clean and calibrate the pH probes . 4 . Mechanical equipment maintenance per maintenance schedule . B) The following duties should be performed later in the day . 1 . Clean pH probes ( as often as necessary) . The pH probe in the pump pit should be cleaned a minimum of four times per day. 2 . Remove scum from the settling tank using the moving bridge . Set the skimmer to use the moving bridge to collect the oil and grease into the skimmer trough . Pump scum to the storage tank . -4- 3 . Disconnect sludge pump from the scum trough, connect pump to the sludge header . Remove sludge from the settling tank using the moving bridge and pump to storage tank . 4 . At completion of sludge removal cycle , the pump should be drained and the sludge drawoff line should be blown clear using plant compressed air for approximately two minutes . 5. Check sludge blanket for tank . 6 . Check sludge density in sludge storage tank . 7 . Pump out sludge storage tank with thickened sludge pump if needed , drawing off supernatant first. 8 . Do settleable solids reading . Record solids reading , pH levels, depth of sludge blanket, chemical inventory, and general notes about treatment plant operation . Keep all pretreatment operation records in a bound numbered-paged log book . Make all recordings in pen . -5- SALEM SUEDE Design Criteria and Operating Parameters Average Flow (gpm) 110 Average Flow (gpd) 80 , 000 Hours of Operation (max . ) 18 Peak Flow (gpm) 360 Average TSS (mg/1) 1 , 000 Average Chrome (mg/1) 78 Average Oil & Grease (mg/1) 320 MIXING CHAMBER Dimensions Length (ft . ) 7. 33 Width ( ft) 15 Liquid Depth (ft) 8 . 5 DETENTION TIME Average flow (min) 63 Peak flow (min) 19 MIXER HP - Mixing Chamber 5 Mixer HP - Pump pit 5 RAW WASTEWATER PUMP Type Non-Clog Self Priming Centrigugal Capacity (gpm) 180 Total Head ( ft . ) 25 Suction ( in) 4 Discharge ( in) 4 SETTLING TANK Dimensions Length (ft) 52 Width ( ft) 15 Liquid Depth (ft) 8 . 5 DETENTION TIME Average Flow (hr ) 7. 5 Peak flow (hr) 2 . 3 Overflow Rate Average flow (gpd/sf) 102 Peak flow (gpd/sf) 247 Weir Loading Rate Average flow (gpd/lf) 2 , 424 Peak flow (gpd/lf) 5, 879 -6- SLUDGE STORAGE TANKS Number of Tanks 2 Dimensions Length (ft) 18 Width (ft) 18 Liquid Depth (ft) 10 . 5 Detention Time SLUDGE REMOVAL PUMP Type Non-clog Self Priming Centrifugal Flow (gpm) 150 max . , 50 ave . Suction ( in) 4 Discharge ( in) 4 Total Head (ft) 25 Speed 1 , 150 Impeller 8 Horsepower 3 SLUDGE TRANSFER PUMP Type Plunger Flow (gpm) 170 Suction ( in) 4 Discharge ( in) 4 Total Head (ft) 60 Horsepower 5 CHEMICAL FEED PUMPS Caustic Soda Pumps (existing) Flow (gph) -Large 0-15 Flow (gph) -Small 0-10 pH Design Range 8. 5-9 . 5 Alum Pump Flow (gph) 0-10 Dosage Rate (mg/1) 100-400 Polymer Pump Flow (gph) 0-5 Dosage Rate (mg/1) 3-15 -7- PROCEDURES TO FOLLOW IF THERE IS A SYSTEM BREAKDOWN 1 . Diagnose the problem 2 . Immediately proceed to solve problem and/or call engineers 3 . Type of problem - Equipment failure A. Chemical Pump 1. Utilize second caustic soda pump in place of broken pump temporarily 2 . Get broken pump repaired or replaced B . Raw Wastewater Pump 1 . Repair pump 2. Shut down operation when pump pit becomes full . Do not restart until pump is in service . C. Sludge Transfer Pump 1 . Repair pump 2 . Shut down treatment operaion at end of day . Do not restart operation until pump is in service . D. Thickened sludge transfer pump 1 . Repair Pump 2 . Shut down treatment operation at end of day . Do not restart operation until pump is in service . E. Mixer 1 . Repair mixer 2 . Increase dosage of alum and polymer and continue operation unless treatment quality deteriorates . -8- F. pH Monitoring System 1. Immediately shut down all operations 2 . Repair pH equipment 3. Restart system. PROCEDURES TO FOLLOW IF THERE IS AN ACCIDENTAL---SPILL --------------------------------------------- --- 1 . Any accidental spill in the building will be enclosed by the building , routed by drainage system to the mixing chamber and treated normally . PROCEDURES TO FOLLOW IF THERE IS A PROCESS UPSET 1 . Stop production, stop treatment process , consult with SP, Inc. 2 . Determine magnitude of upset . SYSTEM-DESIGN-AND REMOVAL OF POLLUTANTS ------ ----- ---------------------- The intent of the process design is to provide a pretreatment system which will meet or exceed effluent quality standards as defined by the South Essex Sewer District in the discharge permit . The system will operate every day that the facility is producing process waste under all weather and climatic conditions . The process will consist of chemical flocculation and sedimentation which is quite successful for the removal of total suspended solids . Oil and grease is removed by a combination of sedimentation and surface skimming . Metals , such as chrome , are -9- strongly effected by chemical addition and settled out of the waste stream . Sulfides which have been present in the wastewater previously will not be produced . Sulfides were formed from the addition of sodium sulfide in the beaming process, Salem Suede will only be retanning and not beaming , therefore no sulfide treatment will be required . The pH of the effluent is monitored by pH meters and controlled by the addition of caustic soda . It is anticipated that the discharge permit requirements will be met on a consistent basis . COLLECTION AND—REMOVAL—OF—WASTE—PRODUCTS There will be two waste products produced by the pretreatment system; sludge wihich is settled out in the settling tank , and grease skimmed from the top of the settling tank . The settled sludge and skimmings will be pumped to one of the sludge storage tanks . The inlet to the sludge storage tank is located two feet above the bottom of the tank, so that skimmings introduced to the tank will mix with the sludge and chemically bond to the heavier sludge particles causing them to sink instead of float . The sludge will be held in the sludge storage tank and thickened until it is pumped into a truck and transported to its ultimate disposal site . If at any time the skimmings interfere with the treatment process , they can be segragated from the sludge and pumped directly to a truck for offsite disposal . It is the design intent to store and thicken sludge in each storage tank for 7 to 14 days (until sludge density in the tank reaches roughly 10%) . Odor from the sludge storage will be minimized by covering the tanks with wood and extending a vent pipe from the tanks to a height of 20 feet above grade . ULTIMATE DISPOSAL-OF-WASTE-PRODUCTS The sludge produced by the tannery is not considered a hazardous waste and will be dewatered and disposed of at a site to be named later . The Sewer District will be informed of the ultimate disposal site . In the unlikely event that hazardous waste is produced on site , it will be removed in sealed containers to an approved hazardous waste dump site . MAINTENANCE REQUIREMENTS FOR EQUIPMENT 1 . Raw wastewater pump and sludge transfer pump, shall be maintained in accordance with manufacturer ' s maintenance recommendation . The pumps should be grease lubricated and pump seals checked for wear at least twice a year . Impeller should be checked and cleaned of foreign materials monthly (or weekly if problems occur) . 2 . Thickened sludge pump shall be maintained in accordance with manufacturer ' s maintenance recommendation . Suction and discharge ball valves shall be checked weekly to insure that the ball is seating properly . All moving parts shall be lubricated . 3 . Chemical metering pumps shall have routine maintenance twice per year . Maintenance shall consist of replacement of elastomers , cleaning of pump passages , check gear lubrication and lubricate as necessary . 4 . Moving bridge maintenance shall consist of the following weekly maintenance : -11- 1 . The following bearings should be greased : Four Wheel Bearings Twelve Cam Rollers Two Pivot Bearings Two Idler Bearings Ten Shaft Bearings Three Swivel Joint Bearings Four Cable Drum Bearings 2 . The Two Trolley ways should have a light cost of grease for protection from corrosion . 3 . The Two Roller Chains should be thoroughly lubricated and should be properly taut . Take-up of the long trolley drive chain can be accomplished by raising the three sprocket shafts using the threaded rods supporting the shaft bearings . Care should be taken to raise the shafts evenly . Take-up of the Vari-Drive chain can be accomplished by raising the Vari-Drive itself using the supporting threaded rods . 4 . The Vari-Drive speed control must be operated throughout its entire range once a week to prevent seizing of the internal components . Do not turn speed dial unless Vari-Drive is running . After the first full week of operation, the oil in the Vari-Drive must be replaced with an oil of proper viscousity for the upcoming season . Then every six months, the oil should be drained and replaced . See instruction on the Vari-Drive itself for proper oil selection. -12- 5 . After the first full week of operation , both components of the double reducer must be drained of oil and replaced with oil of the proper viscousity for the upcoming season . QUALITY CONTROL REQUIREMENT ------------------ In order to monitor the effectiveness of the pretreatment process , the operator should take wastewater samples from the area of the flume and perform settleable solids analysis . The procedure consists of : 1) Fill the Imhoff cone to the one-litre mark with a well-mixed sample . 2) Settle for 45 minutes and then gently stir the sample with the glass rod to dislodge suspended matter clinging to the tapered sides of the cone . 3) Settle 15 minutes longer ; then read the volume of settleable matter in ml/l . The operator should record the test results in the pretreatment operation log book . The operator should take the results of the settleable solids analysis as well as the sludge blanket depth reading to make the necessary adjustments in running the treatment process . If a high solids content occurs in the settleable solids test , then the sludge blanket in both settling tanks should be checked and lowered if required . If the sludge blanket is not too high, then the chemical dosages should be changed . During the startup of the system, the engineer will determine and adjust the chemical dosages for the treatment system. At that time , a chart will be developed for adjusting the dosage rate of the alum and polymer based on the settleable solids readings . -13- Quality control for oil and grease shall consist primarily of visual inspection of the sample used in the settleable solids analysis. If there is any indication of an oil or grease layer , the operator should increase the frequency of use of the skimmer system on the settling tank to remove oil and grease from the treated wastewater . If oil and grease becomes a continual problem, then the operator should consult with the engineer for recommendations for treatment and monitoring of the pollutant . -14- D SUBJECT S/GEM Uepc JOB NO. 0/3 SHEET NO. / OFF_ CHECKED BY COMP. BY UIOL- LAZ rle:77"Li TgN,( DATE DATE SETTG /NG y-AAlff - UPL )FT CA1 7-/dw-f MRA1HUM POTENrlAL ///°L/FT Cooplj'l0,✓ - (rR avNa WcY�2 EL waY.ati AT 6-h'4DE 6,0ve El-ell - f.,f ar s4a a - 9.a %OTzL U11- 7- FDCCC- . SO X AREQ BAjC SLA'9 Y WT or U�TE2 4Fea Oi 4ffE SLA8 6�, �J x /7 S 7 / _ /IO 7 7 4G Tx G',FG lFT FG P cc S ✓ X //07y SF ,Y 62. Y Laf/c,F = -7 /S- so LBf FGr2GF /IGS/1'Tl.✓G- U?L/FT" e l y,/p,Q�- L.6 jC- l�E/G1/T GF C�r'�kE%� .SLGY qav WA act SL.aa: x /7G7 " X 61" 67 X lra Las/c. _ /6G /oG L�1 L OrG f,/Acc!.' 2 Jj G.C3 X 6/. !7 x /.SG L,.'r /S 3 S�8 Ggf SI�aT /ndaLl: X 0, 8,7 X !S X /0 x aller j7 3So cdJ rrry Pe//- 1 X 41.C7' X /SAX 49 �X /Sa a zr L.6� TGT.�� 6G2cF ,QEJiITi/r� va..Fr > 72� Ot9 Ler S/✓cc- SUBJECT S,CtEM .SU�l7� JOB NO. Z)/3 SHEET NO. OF Z IP CHECKED BY COMP. BY U,Pt-/FT G,PeGuea%l /r JeyoUf Siae46-E 74NI'DATE DATE SL UOGE S TOaA&G rANfff- UPL/F7' C44 e u4 .a TI odJ /+MuxiNvn PDTE/vT/PL (/PL/Fr klLL 044klZ WyEN �PovNvwasc/1 /f aT G/1.�of �E't /Y• 0) /IYORDIi,4r!c vPt/Fr Fp/�cE Y. Gj X DF 1 4i X W7 DF G,/.C %E/C TD�F� LP�IFr �'G2cE ; S / X 9lo X X 6..� ca/cF 1 5 2. O Fo LDJ l L� ln/EI ANT GF 60V 6 xe7 -- J -x V prP y( Xx Z lr 'X2 / X /.SO 46l.� = 252,'DG0 cdJ LO�G (✓AGLf_ 2X / k 4/D ;( L� f.F = TG/.<t FDRGE REfIIT/HL- /PL/Fj �G 3 Lam! i SINGE tPG ? 2DD > 261/ DEG T/Ic .STRUCTd/LC /S SAFE FQD4 I/Pc/F Salem Suede , Inc. Additional Information Required by Conservation Commission 1. Elevation of mean high water of the North River at Salem Suede is approximately 9.0 (Based on SESD benchmark utilized for the site plan) . The top of the bulkhead wall in this area is approximately 11.4 and the proposed grade in the project area is approximately 14.0 Z. The elevation of the building foundation wall is approximately 15.0. 3. In the case of a power failure or pump failure, wastewater from the tannery would flow by gravity to the pump pit. Elevations of the trenches and the top wall of the pump pit would prevent wastewater from overtopping the wall of the pump pit. No spillage to the North River would occur under any condition of pump failure or power failure. 4. The letter from South Essex Sewer District approving the plans is attached. 5. The structural calculations regarding uplift are attached. South Essex Sewerage District CRAIG STEPNO Chairman ALAN F. TALBERT March 19, 1985 Beverly TRACY 1. FLAGG Danvers Mr. James E. Shildneck Salem Suede Inc. DANA E. SNOW 72 Flint St. Marblehead P. 0. Box 708 JOHN H. SEITES Salem, MA 01970 Peabody PAUDear Mr. Shildneck: Sale S. NIMAN Salem At a regular SESD Board meeting held on March 6, 1985, the plans JAMES A. VITALE for pretreatment submitted on your behalf by SP, Inc. were Executive Director approved. CHARLES F. MANSFIELD Treasurer The Board' s approval was only for the plans conformance with your DUPUIS "Sewer Discharge Permit" , and not for an endorsement of the plans Clerk uIVE l Booadd ability to meet any of the discharge standards. According to the schedule in your discharge permit, construction of these plans must start no later than April 22, 1985. If you have any questions, feel free to contact this office at 744-4550, ext. 49. Sincerely yours, SOUTH ESSEX SEWERAGE DISTRICT es J. A e ief of Mo ng &itor Enforcement JJA:od cc:�vSP, Inc. 50 Fort Ave., P.O. Box 989 a Salem. MA 01970 a (617) 744-4550 /x^'/zr/rx��'^>/ '/ ' ' '^ ' �^ �^ S . Kuvx�]l Sylvu ,x ) U` Avenue, Woburn, 8k 01801 Coounissi»ner : ynxnna: 935~2160 DATE: March 25 1985 |OWN: Salem ASSIGNED FILE NO: 64-116 The Division of Wetlands in in zeoie@t of at. application filed under M.G.L. cbaPtec l]l ' Section 40' the application is in th/` nam'` o(� APPLICANT: Salem Suede, Inc. 72 Flint Street Salem, MA 01970 0NnEB OF LAND: Same as ubvra -------- PmUJECT LOCATION: 72 Flint St. Salem, }0A 01970 LOT #� � PROJECT xCvIEN ( ) The application is incomplete. No File mnnattec will be aooi9uud until material obeckpd below is submitted to this office: ( } Notice of Intent and Environmental ( ) Plans Data Fo rm ( } Focus WATERWAYS REnzuw ( ) Project may require a Chapter 91 License - Project has been referred to Waterways. ( )) Project does not require a Chapter 91 License. ISSUANCE OF & FILE Nn88C8 INDICATES ONLY COMPLETENESS Or FILING SUBMITTED, NOT APPROVAL OF THE APPLICATION. ----- Very truly yours, William A. Krnl, P.E. 0eputv Regional Environmental Engineer CC: Conservation Commission, Salem, M& 01470 3P, Inc. , 29 Congress 8t^ , Salem, y&\ 01970 -- w Form 4 ' DE4E File No. (To be provided by OEG_I Commonwealth cltyRown of Massachusetts Aqcpl carer j Abbreviated Notice of Intent Massachusetts Wetlands Protection Act,. G.L. c. 131, §40 To be used only for projects of minimum impact, as described in the General Instructions for Completing the Notice of Intent. 1. Location:Street Address 72 Flint Street . Salem MA n197n Lot Number 2. Project:Type Tannery Sewage PretrPatmPnt Description Concrete Settling_ & Sludge Holding tanks to be concirirtPr +h • a 40' -20' Rango f fho stone bulkhead of the North River 3. Registry: County Essex Current Book APage Certificate(If Registered land) 4. Applicant: Salem Suede, Inc . Tel. 744-1303 Address: 72 Flint Street ';rOpm, MA 01g7n 5. Property Owner Salem Suede Tel. Address:_ 72 Flint Srreet Satnm MA 0197n 6. Representative• SP , Inc. Tel. (617) 745-&,5 Q Addresq 29 Congress Street , Salem, MA 01970 7. Have the Conservation Commission and DEGE Regional Office each been sent, by certified mail or hand delivery, 2 copies of completed Notice of Intent,with supporting plans and documents? Yes In No ❑ 8. Have all obtainable permits, variances and approvals required by local by-law been obtained or applied for?Yes CA No ❑ Obtained: Applied For. Not Applied For. COn SP_r VRtion 'Cnmm Approval 9. Is any portion of the site subject to a Wetlands Restriction Order pursuant to G.L c. 131, §40A or G.L. c. 130, §1057 Yes ❑ No 91 10. List all plans and supporting documents submitted with this Notice of Intent. Identifying Number/Letter Title/Date 1 Site plan of Salem Suerie Inr , prop 2 Settling tank plan 3 Sludge storage plan 4 USGS englargement of area 4.1 11. For work proposed within the Buffer Zone(as defined in Part I, Sections 10.02(2) and 10.04 of the reg- ulations)describe,with reference to supporting plans and calculations where necessary: (a) The size, shape, type and location of the proposed work. Excavations of sediments: Settling tank 73.4'L x 181W x 6'0 = 79272 ft3 = 293.6 yd3 Sludge storage tank 40'L x 21 'W x 9'D = 7560 ft3' = 280 yd3 See site plan for . locations and shapes (b) Mitigating measures and designs to insure that the proposed work will not alter the resource area which said Buffer Zone borders:or if it will alter said resource area,the mitigating measures and designs proposed to meet the performance standard established for that resource area in Part II or Part III of these regulations. It is our contention that the additional construction will in no way further impact the area anymore than it is at present. Its existance will be a partia} alleviation of the present impact on the whole Salem Harbor area. 12.For work proposed within Land Subject to Flooding (as defined in Part III,Section 10.57(2)of the reg- ulations)describe,with reference to supporting plans and calculations where necessary: (a) The size, shape, type and location of the proposed work. Section 11A (b) Mitigating measures and designs proposed to meet the performance standards set forth in Part III, Section 10.57(4) of the regulations. Section 116 I hereby certify under the pains and penalties of perjury that the foregoing Notice of Intent and accompanying plans, documents and supporting data are true and complete, to the best of my knowledge. Signature of Applicant Date .eA 0d , PO_C5� 5�0 � - 31�o/85 Signature of Applicant's Representative Date 4-2 APPENDIX (to notice of intent) Impact Statement It is the intention of SP, Inc. to make public any and all benefits or detriments brought about to the surrounding environment by the proposed pretreatment system for Salem Suede, Inc. In reviewing the treatment process and design, the only obvious negative impact from the system is a distinct odor of biological decomposition (anaerobic) . This will be minimized by covering of the storage tanks and venting them at 20 feet above the ground level allowing quick desipation of the questionable odor. Anaerobic processes by definition take place in the absence of air much like most tidal flat processes . One will then realize that whatever odor escape this treatment system will be quite similar to those odors generated by the bordering North River tidal flats . There will be no audible or leach drainage impacts and possibly a minimal windblown waste problem. This could only occur in rare cases because of the surrounding protection of the buildings . Finally, as stated on the Notice of Intent Form, the overall benefit of this system will be to significantly reduce Salem Suede ' s sewage waste discharge on the regional sewage treatment facility. The pretreatment system is a vital component which will lead to an eventual overall improvement of the water quality in Salem Harbor. f z� ,z Conservation Cammissio K Salem. Massachusetts 01970 'kASSnC`� CITY OF SALEM CONSERVATION COMMISSION Will give a public hearing under the Wetlands Protection Act, Mass. G. L. Chap. 131, Section 40, at the request of Salem Suede, Inc. , 72 Flint Street, Salem. The purpose of the hearing is to explore the effects of the construction of a tannery sewage pretreatment facility on land adjacent to the North River. The hearing will be held on Thursday, April 11, 1985, at 7:30 p.m. , One Salem Green, second floor conference room. 1 L Philip Moran �tia Chairman U Apr. 3 MAR 2 9 'I' db ENGINEERING • TECHNOLOGY SALEM PLANNING DEPT. 29 CONGRESS STREET SALEM, MA 01970 (617) 745-4569 March 28, 1985 Salem Conservation Commission One Salem Green Salem, MA 01970 Attn : Ms. Dale Yale Re: Salem Suede Permit Application Dear Ms. Yale: As discussed in our telephone conversation of this date regarding the March 28, 1985 public hearing. We are aware that you will not have a quorum of Conservation: Commissioners at the meeting. Since you would not be able to vote on the permit application without a quorum, no purpose would be served by this public hearing. Therefore, as the duly authorized representatives of Salem Suede Inc. , we agree that the public hearing be held at the next regularly scheduled Conservation Commission meeting on April 11 , 1985. Very truly yours, SP, INC. Y Aau':111F. ' oney,Mulloney, E. Director of Engineering 'INT�C+17S I �s-,?p 3 � ���� � �- ��� ��• �v�J` p" i ate \� � R vet= �� . s Peter o ;• " o Fen �Ppint ry 1 Kernw00d fir. �• _� , � • IJv O � /,' /0 .� � f�\ �T . � , ,\ /r JI� 'Bat „j� •�rll�: l 1 i;s J B_M ins'�ro ' eten`, i 1. 6 r \��� • Seegg}It CSC r Jr r. Hi yp 1 RnWA rve Se IT p ' �f� ru�j/, r• �j � van\ \�11 �(.r•�. � ��1t � � P toy ;�0� //L(?(�Il� ,i 'r�_ .'-f\\r•_-'•-u'--�� •0�.,.r`��S__•�1\\�1 \l•. �!•. i� .� � .��•:>.�- �Vh�\�•'� . '�/- l/F�Iff .�/ 0&M MANUAL For Salem Suede , Inc . 72 Flint Street Salem, Massachusetts 01970 Prepared by : . Paul Mulloney, P.E . SP, Inc . 29 Congress Street Salem, Massachusetts 01970 General For Salem Suede , Inc . , the pretreatment facility is designed to treat the wastewater produced by the facility within an 18 hour work day . The personnel involved in the supervision , operation and maintenance of the pretreatment systems is Jim Shildneck . Mr . Shildneck is familiar with overseeing , running and maintaining process equipment . Mr . Shildneck is also familiar with chemical processes used in the tanning industry . It is the responsibility of the owner that a back-up person be trained and capable of operating the pretreatment system in the event of the absence of Mr . Shildneck . System-Overview The pretreatment system consists of the following components and operations . A) Wastewater Treatment 1 . Wastewater from the tannery flows by gravity to the Pump Pit . 2 . In the pump pit, the pH is monitored , caustic soda is pumped into the pit for pH adjustment and the wastewater is agitated to prevent settlement of solids . The pH of the wastewater after addition of the caustic soda is neutralized within the range of 8 . 0 to 9 . 0 . The start/stop cycles of the caustic soda pumps are automatically controlled by adjustable set points on the pH monitoring system. The pH monitoring equipment and caustic system are existing equipment . -2- 3 . Based on the liquid level in the pump pit, the wastewater is pumped by the raw wastewater pump to the mixing chamber at a maximum rate of 200 gpm. 4 . Whenever the raw wastewater pump is operating , alum and polymer will be pumped to the mixing chamber by chemical metering pumps . When the raw wastewater pump stops pumping the chemical metering pumps will also be stopped . 5. In the mixing chamber , the alum is added near the wastewater inlet and is mixed with the wastewater by a mechanical mixer . Polymer is introduced to the waste stream just prior to the inlet to the settling tank . 6 . In the settling tank , sludge is removed from the bottom of the tank with a sludge header pipe on the moving bridge system; oil and grease is removed from the top of the tank with a skimmer system on the moving bridge . The clarified wastewater flows over the weir and to the proposed flume . 7 . At the flume , the flow and the pH of the treated wastewater is monitored and recorded prior to its discharge to the sewer system. B) Sludge Handling 8 . The sludge from the settling tank is pumped to the sludge storage tanks using the sludge transfer pump. 9 . The oil and grease is skimmed from the surface of the settling tank using a scum collection trough on the moving bridge and pumped to a sludge storage tank using the sludge pump. -3- 10 . Sludge and skimmings are pumped , as needed , to one of the storage tanks for 7 to 14 days , the supernatant from the storage tank is discharged back into the mixing chamber . 11 . When a sludge storage tank becomes full and the sludge in the tank reaches an adequate density, the supernatant is pumped back to the mixing chamber and the sludge is pumped to a truck by the thickened sludge pump for offsite disposal . Description-of-Operators-Duties The normal operation of the pretreatment system should take approximately one to two manhours per day and will include the following duties: A) To be performed at the start of the day 1 . Mix dry polymer with water and pour the diluted polymer into the polymer storage tank . 2 . Check chemical levels in all tanks . 3 . Clean and calibrate the pH probes . 4 . Mechanical per equipment maintenance c p maintenance schedule . B) The following duties should be performed later in the day . 1 . Clean pH probes (as often as necessary) . The pH probe in the pump pit should be cleaned a minimum of four times per day . 2 . Remove scum from the settling tank using the moving bridge . Set the skimmer to use the moving bridge to collect the oil and grease into the skimmer trough. Pump scum to the storage tank . -4- 3 . Disconnect sludge pump from the scum trough, connect pump to the sludge header . Remove sludge from the settling tank using the moving bridge and pump to storage tank . 4 . At completion of sludge removal cycle , the pump should be drained and the sludge drawoff line should be blown clear using plant compressed air for approximately two minutes . 5. Check sludge blanket for tank . 6 . Check sludge density in sludge storage tank . 7 . Pump out sludge storage tank with thickened sludge pump if needed , drawing off supernatant first. 8 . Do settleable solids reading . Record solids reading , pH levels, depth of sludge blanket , chemical inventory, and general notes about treatment plant operation . Keep all pretreatment operation records in a bound numbered-paged log book . Make all recordings in pen . -5- SALEM SUEDE Design Criteria and Operating Parameters Average Flow (gpm) 110 Average Flow (gpd) 80 , 000 Hours of Operation (max . ) 18 Peak Flow (gpm) 360 Average TSS (mg/1) 1 , 000 Average Chrome (mg/1) 78 Average Oil & Grease (mg/1) 320 MIXING CHAMBER Dimensions Length (ft. ) 7. 33 Width ( ft) 15 Liquid Depth ( ft) 8 . 5 DETENTION TIME Average flow (min) 63 Peak flow (min) 19 MIXER HP - Mixing Chamber 5 Mixer HP - Pump pit 5 RAW WASTEWATER PUMP Type Non-Clog Self Priming Centrigugal Capacity (gpm) 180 Total Head (ft. ) 25 Suction ( in) 4 Discharge ( in) 4 SETTLING TANK Dimensions Length (ft) 52 Width ( ft) 15 Liquid Depth (ft) 8 . 5 DETENTION TIME Average Flow (hr ) 7 . 5 Peak flow (hr ) 2 . 3 Overflow Rate Average flow (gpd/sf) 102 Peak flow (gpd/sf) 247 Weir Loading Rate Average flow (gpd/lf) 2 , 424 Peak flow (gpd/lf) 5, 879 -6- SLUDGE STORAGE TANKS Number of Tanks 2 Dimensions Length (ft) 18 Width (ft) 18 Liquid Depth (ft) 10 . 5 Detention Time SLUDGE REMOVAL PUMP Type Non-clog Self Priming Centrifugal Flow (gpm) 150 max . , 50 ave . Suction ( in) 4 Discharge ( in) 4 Total Head (ft) 25 Speed 1 ,150 Impeller 8 Horsepower 3 SLUDGE TRANSFER PUMP Type Plunger Flow (gpm) 170 Suction ( in) 4 Discharge ( in) 4 Total Head (ft) 60 Horsepower 5 CHEMICAL FEED PUMPS Caustic Soda Pumps (existing) Flow h lo (gp ) -Large 0-15 Flow (gph) -Small 0-10 pH Design Range 8. 5-9 . 5 Alum Pump Flow (gph) 0-10 Dosage Rate (mg/1) 100-400 Polymer Pump Flow (gph) 0-5 Dosage Rate (mg/1) 3-15 -7- PROCEDURES TO FOLLOW IF THERE IS A SYSTEM BREAKDOWN 1 . Diagnose the problem 2 . Immediately proceed to solve problem and/or call engineers 3 . Type of problem - Equipment failure A. Chemical Pump 1. Utilize second caustic soda pump in place of broken pump temporarily 2 . Get broken pump repaired or replaced B . Raw Wastewater Pump 1 . Repair pump 2 . Shut down operation when pump pit becomes full . Do not restart until pump is in service . C. Sludge Transfer Pump 1 . Repair pump 2 . Shut down treatment operaion at end of day . Do not restart operation until pump is in service . D. Thickened sludge transfer pump 1 . Repair Pump 2 . Shut down treatment operation at end of day . Do not restart operation until pump is in service . E. Mixer 1 . Repair mixer 2 . Increase dosage of alum and polymer and continue operation unless treatment quality deteriorates . -8- F . pH Monitoring System 1. Immediately shut down all operations 2 . Repair pH equipment 3. Restart system. PROCEDURES TO FOLLO44 IF THERE IS AN ACCIDENTAL SPILL --------------------------------------------------- 1 . Any accidental spill in the building will be enclosed by the building , routed by drainage system to the mixing chamber and treated normally. PROCEDURES-TO-FOLLOW--IF--THERE-IS- A-- -UPSET UPSET ---------- -- ----- - ----- -- ------- ----- 1 . Stop production, stop treatment process , consult with SP , Inc . 2 . Determine magnitude of upset . SYSTEM-DESIGN-AND-REMOVAL-OF-POLLUTANTS ------ ------ - -- - - ---------- The intent of the process design is to provide a pretreatment system which will meet or exceed effluent quality standards as defined by the South Essex Sewer District in the discharge permit . The system will operate every day that the facility is producing process waste under all weather and climatic conditions . The process will consist of chemical flocculation and sedimentation which is quite successful for the removal of total suspended solids . Oil and grease is removed by a combination of sedimentation and surface skimming . Metals , such as chrome , are -9- strongly effected by chemical addition and settled out of the waste stream. Sulfides which have been present in the wastewater previously will not be produced . Sulfides were formed from the addition of sodium sulfide in the beaming process , Salem Suede will only be retanning and not beaming , therefore no sulfide treatment will be required . The pH of the effluent is monitored by pH meters and controlled by the addition of caustic soda . It is anticipated that the discharge q r permit requirements will be met P on a consistent basis . COLLECTION—AND—REMOVAL—OF—WASTE—PRODUCTS There will be two waste products produced by the pretreatment system; sludge wihich is settled out in the settling tank , and grease skimmed from the top of the settling tank . The settled sludge and skimmings will be pumped to one of the sludge storage -tanks . The inlet to the sludge storage tank is located two feet above the bottom of the tank, so that skimmings introduced to the tank will mix with the sludge and chemically bond to the heavier sludge particles causing them to sink instead of float . The sludge will be held in the sludge storage tank and thickened until it is pumped into a truck and transported to its ultimate disposal site . If at any time the skimmings interfere with the treatment process , they can be segragated from the sludge and pumped directly to a truck for offsite disposal . It is the design intent to store and thicken sludge in each storage tank for 7 to 14 days (until sludge density in the tank reaches roughly 10%) . Odor from the sludge storage will be minimized by covering the tanks with wood and extending a vent pipe from the tanks to a height of 20 feet above grade . ULTIMATE-DISPOSAL-OF-WASTE-PRODUCTS The sludge produced by the tannery is not considered a hazardous waste and will be dewatered and disposed of at a site to be named later . The Sewer District will be informed of the ultimate disposal site . In the unlikely event that hazardous waste is produced on site , it will be removed in sealed containers to an approved hazardous waste dump site . MAINTENANCE_REQUIREMENTS_FOR EQUIPMENT 1 . Raw wastewater pump and sludge transfer pump, shall be maintained in accordance with manufacturer ' s maintenance recommendation . The pumps should be grease lubricated and pump seals checked for wear at least twice a year . Impeller should be checked and cleaned of foreign materials monthly (or weekly if problems occur ) . 2 . Thickened sludge pump shall be maintained in accordance with manufacturer ' s maintenance recommendation . Suction and discharge ball valves shall be checked weekly to insure that the ball is seating properly . All moving parts shall be lubricated . 3 . Chemical metering pumps shall have routine maintenance twice per year . Maintenance shall consist of replacement of elastomers, cleaning of pump passages , check gear lubrication and lubricate as necessary . 4 . Moving bridge maintenance shall consist of the following weekly maintenance : -11- 1 . The following bearings should be greased : Four Wheel Bearings Twelve Cam Rollers Two Pivot Bearings Two Idler Bearings Ten Shaft Bearings Three Swivel Joint Bearings Four Cable Drum Bearings 2 . The Two Trolley ways should have a light cost of grease for protection from corrosion. 3. The Two Roller Chains should be thoroughly lubricated and should be properly taut . Take-up of the long trolley drive chain can be accomplished by raising the three sprocket shafts using the threaded rods supporting the shaft bearings . Care should be taken to raise the shafts evenly . Take-up of the Vari-Drive chain can be accomplished by raising the Vari-Drive itself using the supporting threaded rods . 4 . The Vari-Drive speed control must be operated throughout its entire range once a week to prevent seizing of the internal components . Do not turn speed dial unless Vari-Drive is running . After the first full week of operation, the oil in the Vari-Drive must be replaced with an oil of proper viscousity for the upcoming season. Then every six months , the oil should be drained and replaced . See instruction on the Vari-Drive itself for proper oil selection. -12- 5 . After the first full week of operation , both components of the double reducer must be drained of oil and replaced with oil of the proper viscousity for the upcoming season . QUALITY CONTROL REQUIREMENT In order to monitor the effectiveness of the pretreatment process, the operator should take wastewater samples from the area of the flume and perform settleable solids analysis . The procedure consists of : 1) Fill the Imhoff cone to the one-litre mark with a well-mixed sample . 2) Settle for 45 minutes and then gently stir the sample with the glass rod to dislodge suspended matter clinging to the tapered sides of the cone . 3) Settle 15 minutes longer ; then read the volume of settleable matter in ml/l . The operator should record the test results in the pretreatment operation log book . The operator should take the results of the settleable solids analysis as well as the sludge blanket depth reading to make the necessary adjustments in running the treatment process . If a high solids content occurs in the settleable solids test, then the sludge blanket in both settling tanks should be checked and lowered if required . If the sludge blanket is not too high, then the chemical dosages should be changed . During the startup of the system, the engineer will determine and adjust the chemical dosages for the treatment system. At that time , a chart will be developed for adjusting the dosage rate of the alum and polymer based on the settleable solids readings . -13- Quality control for oil and grease shall consist primarily of visual inspection of the sample used in the settleable solids analysis . If there is any indication of an oil or grease layer , the operator should increase the frequency of use of the skimmer system on the settling tank to remove oil and grease from the treated wastewater . If oil and grease becomes a continual problem, then the operator should consult with the engineer for recommendations for treatment and monitoring of the pollutant . -14- ✓• if awe✓ /s ? 6a��s "741 �. /N5�¢l�zoti.5 FµtU✓llTav/�,O ? ✓. , F a 70 0 ash-,Cho' a?2.,st bey� � Aye wa- � /J SN II N7 C_hlp J � _ao � 0 r�0 ���l �i ••1��;��� . \ o w ��••�, 3 ssters Pt F'a'tkU I IB r • ., e o vfi- :may, a m /o �Saitet vb �. .. s Peter' - VFe Hi t y i C&rse", F S' o t J e on $ i reenta�n > ar orb SeeSc O p : �� i OTR I ❑ Z' R �9�o i �- \ J � f� �. .moo i �✓S� �' }i O ti i '� � y SoN S i O L E do /w Iter O �^`��1•�J1�,' ��� �J) � P �� Mill J, 1 r V� �5' Af� i�A r—• V $t (��i IHAI r� �aIN l/�'f r I r�J ^+� it.•r ��Z(��( �� �Ac 7� Sl p • �l��i �I(��� �:� 0'N"r�I(���� �/_� AA��' i �. L9 r GENERAL NOTES - . General 1.6 .< TREATMENT TANK REINFORCEMENT `NOTE:A M/N/ML/M OF 3, COVER SHALL BE _ MAINTAINED BETWEEN STEEL AND . _._ .. 1.1 It shall. be the responsibility of the Contractor to verify that his. construction plans are at at all times up to date and consistent with the ANY FACE OF.CONCRETE /N ALL CASES 5/ CRL75S MEML3E/2 EACH S/OEOF 6 latest revisions that may be'issued from time to time by the engineer: CROSS MEMBER %8" 1.2 It shall be•the ,Tesponsi6iiity of the 'Contractor to report to-the 4 /O /5 O /O engineer, prior to the 'construction of the -affected components, any site �i W8x/0 or design' conditions that he 'may f eel'in need oo mo3iTicatiori - ELEV. 20.0 - � � No 4 O 8 O. C. DES/!T/V 1NL. /8.5 (pti / 1.3 All dimensions shall be verified by`the Contractor. ' Discrepancies .;hall . be reported to the Engineer prior to construction of the 'affected �. components. N_ .4n ht O. C.- ., , 1.4 ',Unless otherwise indicated, details and sections (shown on an .drawin / /O.O„ No6�8.0, C, (,RAOE Y shall be considered to be typical for all similar ,situations: 9 1.5 The Engineer h Building Officials shall have the right to order testing , of-any materials .used in construction to determine if materials are of 01 '• the quality specified. Excavation Z.0 • d 8� N' 6 CaD gC, LCZZZ, _ _ _ EIC /O.O� 3 3-6 2.1: Contractor shall use all means necessary to control 'all dust that may be ��� N. T. 5. generated by said contractor. This shall be accomplished in such a y 'V 9.0� manner so as to prevent such dust from becoming a nuisance to the public, , o neighbors, owner and ,performance of the work-of others. /8" MINIML/M Al."OF COMPACTED �� 2. 2 Excavation materials shall be stored in such a way so as to prevent ` •-+� - • ' erosion by wind or water.., SELECT �7.PAWEL BENEATH SLAB � ., . . ', acted by Engineer n n 2 3 Excavation shall be ins ' prior to the installation of +/ o any formwork. P CROSS SECTION A-A (SHT2) CONCRETE WALL o footings shall be installed in-water or on frozen ground.' 2 4 N T I BOLT WBK/O TO /HALL Unless otherwise noted, all backfill material shall be gravel that ,is „ / -. F re from 11 organic material and shal e n such a manner so es • ' ••• a ' /q//T,�/ (4) A3Z5 5/B � BOLTS free a r cshall'be placed 1 <. T1 Y FZAIVh•E (•Z BOLTS to prevent damage to the 'new structure: _ EACH S/DE OF /t/EB). �, p 2.6 . In all cases, finish grade shall be at least 410" above the bottom of EX/S � AV ME 8ER q footings. Concrete 3.0 E STEEL�AL.4/V O OC a", .� f0R /ONE 3.1 All concrete materials and work sha11 conform to the requirements of the American Concrete Institute Code 318-83. r _ 4" = DETAIL •.I (SH T_ 2) 3.2 All concrete shall be air entrained and have a compressive strength of h _ n t It 4000 psi 26 days after placement. SULAT/ON 11A R BA R/E - II2 =I-O . 1 x-4 OR STL/D A N ' 3.3 All reinforcing,bars shall be of deformed steel, ASTM designation A615, Grade 40. T/-// SNEAT INEXT. YWOOD A TER -GI/N/T A � X //V8 /� 3.4 All reinforcing details shall conform to the AISC Manual of'St eel• ' Construction, Eighth Edition. In all cases, a minimum of three inch;s of ,concrete cover shall be t 5 TN/CK ESS/JRE. T D /. TONG trOOVE OO PLA maintained between the steel-and the otutside edge of the concrete. A - , 3 P 3": F'L 3.6 In all cases, there shall be clear disttance,between parallel bars in a R( R,ESSU FATED) I � layer of not less than one inch or equal to one bar diameter, whichever ' is the great'er:-- =i.ua-n{,ecificiation ones>not apply to bars that a.a-in - -- X/O ER .BOL ,, \ contact with each other. z':O00.. S C7E'REQ T - Steel 4.0 t � •• /1/ O '4.1 All structural steel shall 'conform to the requirements of ASTM 36 and be ' fabricated and erected in compliance with the AISC, Manual of Steel TAIL 3 H 51} - Construction, Eighth Edition. 1�2 = '�- 4.2 Structural steel shall be double factory primed. All steel shall be � , field painted with a light-build epoxy. AV Z4x:.'/6 INDICATES F/ELO WELD N Carpentry 5.0 { x/ ' 5.1 All framing lumber shall be No. 1 Eastiern White Pine or other such , IF'SNOWN, - W _ - ELD ALL I material that may be .approved by the engineer. ' 5.2 All framin lumber shall have a " istu c of,no PLATE A 5/Z6" OF F/LL6T GVELD LE TII A ,. framing ,lumber 11 mo re ontent o ,no more than .15 A 6=LEN4$7// OF G+ZIO percent. D IL 4 (S 5) POST O'� ' t 1 5.3 All connective devices such as bolts or nails, etc., shall be hot dipped / "NOT: T S LE galvalized. OF WELD 5.4' Wood Hailers, planking end ridge beams shall be pressure treated:-. Other t EXPLAIVAT/ON OF-!VELD SYMBOL wood components shall be .field painted with penthchlorophenol ' or stained o s+ r painted as noted on plans. AILL WELDS ARE TO OE MADE L/5/Nl7 .T,4/E 5N/ELDEO AISC PlumbinQ•6.0 PVEL0 PROCE55 (5MAGV)_1/s1AI ETo CLECTRooE("JAIIMUM NOT INCLUDED IN CONTRACT `3„ TO 0&,eHEAD Vic. 6.1 Piping shall-be of Schedule 80 PVC unless otherwise noted an plan• TENS/LE STl�EN4'TN OF TfIE WELD /5 70 K/P.5 PER .'/NCf/J- P 9 P ' GVELOS ARE TO BE TNF_ 5/ZE AND LENC7 TfI /ND/CATER ANO FO2CE MAIN shall be installed in accordance with national and local codes. ; : OWN. 3� FLANGED 3�L7/SC//i4iPGE 1&,449E�P 6.2 Bolts used at flanged connections shall be made of stainless steel. /nV THE POSITIONS SN GATE X41 VE -�' rGO. 3 'FLAN E a Electrical 7.0 - ' GATE VAL I/E 9 C//ECK 119E VE G�4TE IW VE G PLACES 7.1 All waterlioofical items including those used in Snterior 'locations "shall be U P : 3• SUCT/ON � , • NEAOE.e 3 3 3 S 7.2 All electrical work shall be completed! -in compliance with national h BEAM AA045TE CO TRANSFEPP!//HP local codes. 3..SU.�E,PNATENT�5L/C T/ON f 3"FLANVED,BALL - - `- - _ V`ALYE� 4x3 ,PEDL/C//✓O BUSy/N 3/72.4CE5 REV. DATE DESCRIPTION By c,PAOE SALEM SUEDE INC. - -.. ._ ._,__ 3•SUPE.PN.9TENT ---6"4 E'EOZ10/N6 BG �/NC7^-3 PLACES f;PoM TANICs .,...�1. SALEM, MASSACHUSETTS OF 4f 6 FitOM 6„F.POM a•X//fZoAl • -r, 3 DETAIL TANK TAN . n `A.;• .rs,,, - - _ - - - - ;.��7�i4 .A4 75 PIPING SCHEMATIC -- BEAM WASTE TRANSFEk PIPING - � �s,�'•5'` :? : . - �.. Or.Al NGINEERING • TECHNOLOGY NOT ,' TO SCALE "":•"`••�,e ,';-29 Congress Street • Salem, MA 01970 • Telephone: (617)745-4560 Drawn by E. - Checked DY�. B Y Dw�g No MASS PE STAMP . ALLISON RAMLE , IN PROCESS Date MAY 1984 Project No. .4 of 4 CHEM;/CAL FEED BU/LD/NG - . _5EE FLAN 01Z 0/-V TO PUMP PIT s B r-1 FOR CONTINLIAT/ON q SEE P/:P/NG SEE 5/TE PLAN ZO'-p' \5C11Z- , C TH! SEEET 6"PVC I • - TOP OF HALL � 6"PVC CAST /NTO WALL I ELEV. 23�O" UDh"r m INVERT ELEV zo.5� P/PE NOTE=ti/E/R TROUG',�/S D.PAh/OFF NOTE PiPOY/DE 3,/4 p/A. Tf/PEADELS - TO I/AVE. 3"LONh (TYP/C,4L� TO Be FLL15N W F.4CEOr IWLL5. BOL I 5r 11 ,4 ' J- T5 ON TOR FALL OE?/hN 1w ,Z/.5' r�/NVERT Z 5L BOLT SLOTS TO lZ/'LAXE ) W.9LL5 ¢ -O OrV CENTER BOYE IN,gLL 5. — FemaCr 6"INTO TANK. ADJUSTMENT/CAL I NTOAS B -i WATER 04 5URFACE ELEWTION ,2/.5 ENO, 6 A -- LA ( Y AL) ' 1 OUTL/NE OF FOOT/NI SLAB(F10oe)ELE!/flT/ON 9.0' 4'ELBOI ti 001(/N r0 /�i/JT.y/N I 1 • 2.O"OF L30TTOrY1 Of TANK i GPAvE 4"FOPCE MA/N 4' PVC FLANGED BALL f�R.40E ELEu F.POrYI SETTL/iYG r/4 X/P x/Z WE/.P T,POL/C, yS TANK A VW VES (4 PLACES) CONT/NL/OUS ALL fOU.P WALLS BOT// TANKS A 6"OrP,4WOFF " " LC; TO PGMP Fir 71 TOP/OFWALL ELEVAT/ON ,Z5..0' f - _ - _ - - MINIMUM .30" OF ELEV. 9,-0," ~ - COMPACTED SELECT 0 - - C,e.4�EL BENE,4T/I SLAB . '�'. 6"PYc SL/Joy'E /1 M/N. ORAGVOFF B4J (STEEL RE/NFORCEMENT NOT SHOWN (CROSS SECTION B-B SLUDGE STORAGE TANKS - PLAN 1/4'= 1'- 0" 1141 11_o11 24=0 ' 4'1/OSE CONK. TWO 3 0" SIfW ELECT.P/C Je7-0"POOR5 UNIT /Z,.errP L/l7</T SW/TCN Q BU/LO/NW CON5T.PUCT/ON TO POLYME.P NOTE PUN2 Y/NYL TUB/iN6 '¢ O/A F.POAI ALUM ANP PIOLYMEe BE 8"CONC,PETZ- BLOCK WALLS 8' DB B L. U B L PUMP "5%//4-H PUMPS TO MIXINI C'H. I"OSI.P •. . Gt//TiS�WOOD Fi�A/YIE SPOOF POLY�Y/EiP _ Z_,_.. P/TC//EOAw�JYFif'O/J? TANfC. RODF FLUO.P. F/XTURE TANK TO 13S Z3545 45114L T 5H/NGLES T///CKENEOX4'REDUC/NG Ol/E.Q 71VO L.4YZe5 OF1P001r1NG SLUO�E 4S0 SAL. l5&511IN6 P.4PE.P OYE.P 5/e"EXT. �7 PAOE T.PfINSFE,P 717(717 PL%INOOo. n' ,Z-IZ-P5 5"ZZ oz- PL//Y/P ,O 2 x/O"0/6'"O.C. LV17R A P/TCN OF 8'O/.4 x 8'.�//�.�/ h f TiPL/CK F/LL 3"/N/e'- CLEAR NE/G•yT AT ,SLUM T,4NlC a C.O. '� —+- ' LOW 5/OE _IAA. LL BE /O-O" 3000 4AL. 6 SLUOhE A/30VE F/N/Sf1E0 FLOD.P. � _ FiPOM�TANrE' T,y/C/IENEO SLUph6 ' • ALUM 7"AlSFElP PUMP : SEE?/P/NCB 3L'//EMAT/C PUMP � WALL 5/(/�V T.S�/S sf/EET fit" 1/0SE CONNECT/ON ELECT,e/C' 6 X4"�PEOUC/N6 UN/T/�EATEiP D/7UBLE OLJPLEX /20 l/.9.1' L�USf1/N� TANK WALL OUTLET (3PL/JCE5) �iPfIDE NOTES /. ALL .A/P/N� 511CWN /5 4"O/A 5CN. 80 P. Y C. PLAN OF CHEMICAL FEED BUILDING t UNLEss NOrEo orf/EPwisE. n 1 u Z. ALL 011MES 4Pr 4"FLANhEO 4ATE tx1ZWS. I/4 = I -0 - - 6"SLUOC'E O.P,4I1/OFF . ., _ FiPdM TAN!C PIPING SCHEMATIC - SLUDGE TRANSFER PIPING ELEI/. 2-To NOT TO SCALE DE5/C7'N W.L. Z/.�' ELEV 20.5' N94em6" 0.. 0 N. 4m6"O. C. d6., o/.g IV9 4 aIle"O. C. NP4OD 6"O. C. � t Ng604oC, To NP4906"0.. C. ELEV. /4.0'3-O" 1 4-6" d=8" 1_7 REV. DATE DESCRIPTION BY N? /O0)/D"O. 0 ? SAL EM ;.SUEDE; INC d-zo SALEM, MASSACHUSETTS ---f=ELEV //.O „ — �—ELEV. 9.0' •' s .' ' _ ` Np // gD . -0, c. M/NIML/M 90"of d-zO., SLUDGE '' STORAGE TANK S " NOTE A MINIMUM OF 3"COVER SHALL L3E , � �•c,F' . COMPACTED SELECT GRAVEL41 /Z (DRAWOFF P/PIN6 ,MAINTAINED BETWEEN 57'EEL ANO a s -� - BENEATH SLAB ." 6 ,r +„�� NOT 5NOWN ) ANY FACE OF CONCRETE IN ALL CA5E5 - _ r ; CROSS SECTION A-A . :� 46- 1K „_ r �� ��``" •. `` • ENGINEERING • TECHNOLOGY 1/4 — 1 -0 / ��K ,,S�Okl;� �,�,'' 29 Congress Street Telephone: (617) 745 4560 ,! .,,. 1. ,,.� 9 Salem, MA 01970 MASS P. E. STAMP .` . °ra"n°YE. AL'LISON jcnecked D. BRAMLEY No. • IN PROCESS lowe MAY 1984 Project No. 0135 3 Of 20_0 ` 70= 0 STEEL WEIR TROLIC71I /2� DL'EP. BOLT TO TANK WALL. > PROI//DE 3 1/ERT/CAL SLOTS 8 A!}� SEE DET,4/L / FO>? ADJUSTMENT OUT[/NE OF FOOT/NCj `l l•� RAIL, MOU/VT ON TANKr IAIALL I ON 511EET4 -- -- -- FLA FELEV. 2 ' N04 "O. C. WBX/O W8X O q/_,g" a. QT.POLLEY = III SLUDhE D/SCNARC,E Z'a" _ e - . 2-4 1Z 24" FLOOR ELEVAT/OA/ /©.O. E 4..FORCE MAIN .- 4. 2d, - - - ' I FROM M/X/N6 Cf1.4MBER WALL HOS SUPPORT - t 0 BR/DCFE 5W0aE REMOYXZ 5Y5TEM _ - -- t 'INCLUDES, 5LUDa,5 hVMP AND 49ONAIL-0 /P, FOrP SLL/'OhE REMOIigL, ;4N0 SCUM, SKltifirfEP � WE SETTLING TANK _ a a ' I TROUGH' AND. 5CL/AQ REMOv,4L SYSTEM f©�P _ MIXER j SUPFACE' S,r/MtitlNF oiscNAPGE �aEs .ro 2'0' 6'-0 PH .Probe Location SLU06ETo.PA4ETANKS. !!/V/T TO BE P//PKED; MlXlN(i' CHAM'BEf� - ,Ix4,xt N N°6@ 6"0.C. 101PvC �Q .9TOrHE.PEND cOFT//NK. WATER SURFACE ELEVfIT/ON /8.5' B .ZD /2 01 SLAB PH Monitoring 31a4ioh 5-1 .PEM011 4 BR/OBE qR/1/E,N PAY z 6' _ IJ REC/P�PPCAT/N� CABLE DRUM —ELEV. /O.p1 . •o - - - - TOP-0,4 VALL ELEWT/ON20••5' -_ - -- -- - - -- � - -- -- - - -- - ' 4"X 4 X 1/,e"c RA/[, MOUNT ON TANK INAL � A /2N - 5s/owN oN 5//EET 4 P LAN VIEW SECTION . B - B SCALE 1/4=1-Ott 3/8 = I'-Or' " " - t ' /0'-4'' NEW 3"PARSHALL FL UME W8 I .4 FORCE MAIN \ FROM IW/XING' CHAMBER —/8 STEEL BAFFLE kVgTER SURFACE ELEWTI0/V /8.5 - —ELEV. ,20.0' P Q' cV I M/XING CHAMBER r- �iRADE' lZ . /zr/2 EFFLUENT WE/iP TiPOUC7N•PROI//PE 3 LON� MIXER m BOLT 5L OTS TO PERM/T IiERT/CAL AD,/USTMENT 6"D/A PVC PIPE I CAST INTO WALL - 0 v 6 ITYP/CAL) ELEV4T/ON /O.O' 6 PLACES �/TERSTOP<T�'/�/CAL) 2'0" �^- IW.. 7.60 �'_6" ELEV. /0.01 ELEI! 9,0' �9=0" MIN/MUM le"OF COMPACTED STEEL REINFORCEMENT FOR SLAB 5Ezz ?RAVEL BENE,4TN SLAB ro" AND EXTERIOR WALLS SHOWN ON SHEET 4 4 LONGITUDINAL VIEW „ �� REV. DATE DESG�RIPTION 9Y SCALE 1.14= 1-0 1 SALEM SUEDE, ` INC. Flume Size 3,,. Parsholl Flume Top of slab elev. SALEM, MASSACHUSETTS r A 17. 2Q A B 17. 20 s C 17.05 E �. ,_, SETTLING TANK D 17.00 a r E' 1700 P FLUME DETAIL ENGINEERING • TECHNOLOGY 29 Congress Street • Salem,'MA 01970 Telephone: (617)7 5560 NOT TO SCALE MASS FE. STAMP' °rawnDYE. ALLISON ' OheOkedDyD BRAMLEY °wgNa , IN PROCESS Dare MAY 1984 Project No. .0135 Of 4 MA SO I' o�A� S T R _ E E T ' 1 .l I - FINISHING . >— p Extend Trench to _ - i _ � _ ,T � Cj H T Receive Wastewater 1 t i' from Finish Area _ I - _ •�,•_ . .. __ - - - - - I OFFICES plug , Plug- C) t 6°Domestic waste�- f / Extend Trench for, 0 } / Color Area R / Wastewater , STORAGE AGE Transformers L - - T00 - ' . / ! - ROOM r 1 Screen it Invert 19.9 Meter .. _ - 7 X � 1 WG - Existing Line to be .. 4500 .. 5875 Pump pit - r - - Removed - - - Cr - -Cr O r - - - O - a000 E Extend O +,,;,�—-- - - - * Cen oil-to 1 `. �jallovw Boilers _a ) H -•• , :, 6eZan Z „ / z Centerw, ht �i �, I Cr T HIDE STG - , Existing E .Prof. .. full He9 I 1 - _ _ - - rim 15.1 Invert 7.45 �• - gas - Pump O 1 , tanks : _, I }f ,:• r -, 1. R ' I , Mi Driim l3. _ W611 13.1 - wastewater Trorstor Pumbi.(new 10nS Invert '6.7 .. Rmw Was ist. Brim 13.4 ° -{-/'-/-f• Dole0 ume , , It o I Ctdustic Tonks9 PUMP ex _) FM - � Y- Invert 6.9 �� - -� + l p� - I „ Aban on — — I = d I!3" , Mixer O - - • . I T Duet TAN I � 1 box . Mp I S.E.SD. 1971 Treatment Tank .`..i Redd - w Buildmq •; ° - �.. Rim 12.1 - (new) o b . . _ Invert 6.11 1,2 . Sludge : O Moving Bridges - Si - :. - - Removal t REV �'. DATE . P �t • 0 8 bESCRI Mixm9 Clam - .. EM,� MA�5 SET,�'S � L' SACHU Force Main - - j , • r s° ,. O F • R CANAL ( tidal ) ,.�.��... .. �, ..• SITE PLAN . R , u �+ 11 1PAUL 1 , - : QIe - 30 JCi r F, ; _ - -.,. i - . ' - - .. ,: - - - • . - . it Ct'?t �1, _ { / s` xa`' D ENGINEERING • TECHNOLOGY . ,.• +• * , 29 Congress Street • .Salem, FAA 01970 • Telephone: 1617) 745.4560 { . . - '• Drawn by �C!Ilf1 _ Dick Checked °j.•D..B f't]FC118 Dwq No ..- .- .r { s MP r - Dale M - Project No_ 35', MASS P E. STAMP _ IN PROCESS o �1984 ' 01 "�_ 0��• . _j: i