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HomeMy WebLinkAboutNC0086819_ATC Application_20190626NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION FOR BRUNSWICK COUNTY North Carolina PERMIT APPLICATION FOR AUTHORIZATION TO CONSTRUCT JUNE 2019 Prepared By: McKim & Creed, Inc. 243 N. Front Street Wilmington, NC 28401 910-343-1048 M&C Project Number 00069-0047 McKim & Creed NC License No. F-1222 4-6 4e . MCIQM&CREED June 26, 2019 Mr. Bing Bai NPDES Complex Permitting Unit Water Quality Permitting Section Department of Environmental Quality 512 N Salisbury St. 1617 Mail Service Center Raleigh, NC 27699-1617 E N G I N E E R S SURVEYORS P L A N N E R S M&C 00069-0047 RE: Permit No. NCO086819 Northeast Brunswick Regional WWTP Brunswick County Application for Authorization to Construct (ATC) Permit Dear Mr. Bai: Enclosed are one (1) original and two (2) copies of the application for an Authorization to Construct Permit to referenced Permit No. NCO086819 authorizing the operation and discharge from the Northeast Brunswick Regional Wastewater Treatment Plant. The scope of construction included within this facility expansion will increase treatment capacity by 2.5 MGD to a design capacity of 4.975 MGD. The expansion under the scope of this application will include provisions for future expansion to reach a capacity of 6.23 MGD. Expansion will in general consist of construction of: a new headworks structure; new EQ pump station; headworks/PS odor control system; new EQ tank to be tied into the existing EQ tank; a new anaerobic selector feeding two oxidation ditches with provisions for a third future ditch made; two secondary clarifiers with provisions made for a third future clarifier; two new tertiary disc filters with provision made for a third disc filter to be installed later; a new open 1730 Varsity Drive channel UV system consisting of two channels each containing two banks of lamps with provisions made for a third channel to be added in the future; a new Site 500 cascade aeration structure; a new effluent pump station and force main to tie into Raleigh, NC 27606 the existing diffuser in the Cape Fear River; new non -potable water feed pumps at the effluent PS to feed a new NPW distribution system for plant water; new 919.233.8091 mechanical building equipped with blowers, RAS/WAS pumps, chemical feed Fax 919.233.8031 pumps; new rotary drum thickening facility with two rotary drum thickeners www,mckimcreed.com S.'1006910047140-PermitlAtithorization to Construct12019.06.26 - Authorization to Construct Cover Letter.doc Mr. Bing Bai June 26, 2019 Page 2 of 3 and polymer feed system and thickened WAS storage facility; two new ATAD reactors with transfer pumps and provisions made for a future third ATAD reactor; two post ATAD storage tanks for digested solids storage; odor control system for the ATAD reactors and storage tanks; new truck loading pad with transfer pumps to feed digested solids from the post ATAD tanks to the truck loading discharge; new electrical building with new electrical distribution system and controls and backup generator system. It is anticipated that the current scope of work will take approximately 24 months to substantial completion and 26 months for final completion. The attached application for an ATC Permit is submitted for your review and approval. The following items are included with this submittal: Cover Letter (This Letter) 2. Application for Authorization to Construct Permit (Form ATC-12-14) 3. NPDES Permit NC0086819 — Part I (Existing Permit Currently Under Review) 4. Letter granting FONSI for Project 5. Northeast Brunswick Regional Water Reclamation Facility 2.5 MGD Facility Expansion Drawings (issued under separate cover) 6. Northeast Brunswick Regional Water Reclamation Facility 2.5 MGD Facility Expansion Specifications (issued under separate cover) 7. Sequence of Construction Documentation 8. Peaking Factor Calculations 9. Influent Pollutant Loading Calculations 10. Design Effluent Concentration Calculations 11. Hydraulic Loading Calculations 12. Equipment Sizing Calculations 13. Pump Calculations 14. Buoyancy Calculations 4 MCKIM&CREED Mr. Bing Bai June 26, 2019 Page 3 of 3 15. Auxiliary Power Calculations 16. Residuals Management Plan If you have any questions about this submittal or require additional information, please contact me at 919-233-8091 or jpowell@mckimcreed.com. Sincerely, McKim & Creed, Inc. Joshua Powell, PE Staff Engineer cc: File MCKIM&CREED Water Resources ENVIRONMENTAL QUALITY State of North Carolina Department of Environmental Quality Division of Water Resources APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) SECTION 1: INSTRUCTIONS AND INFORMATION A. The Division of Water Resources will accept this application package for review only if all of the items are provided and the application is complete. Failure to submit all of the required items will result in the application package being returned as incomplete per 15A NCAC 02T .0105(b). B. Plans and specifications must be prepared in accordance with 15 NCAC 02H. 0100, 15A NCAC 02T, North Carolina General Statute 133-3, North Carolina General Statute 143=21.5.1, and Division of Water Resources Minimum Design Criteria for NPDES Wastewater Treatment Facilities. C. The plans and specifications submitted must represent a completed final design that is ready to advertise for bid. D. Any content changes made to this Form ATC-12-14 shall result in the application package being returned. E. The Applicant shall submit ONE ORIGINAL and ONE DIGITAL COPY (CD) of the application, all supporting documentation and attachments. All information must be submitted bound or in a 3-ring binder, with a Section tab for each Section, except the Engineering Plans. F. Check the boxes below to indicate that the information is provided and the requirements are met. G. If attachments are necessary for clarity or due to space limitations, such attachments are considered part of the application package and must be numbered to correspond to the item referenced. H. For any project that requires review under the State Environmental Policy Act (SEPA), an Authorization to Construct cannot be issued prior to the completion of a State Clearinghouse advertisement period for a FONSI, EIS, etc. unless the project qualifies for a Determination of Minor Construction Activity. I. For more information, visit the Division of Water Resources web site at: htts: deg.ac.goJabout/divisions/`water-resources/water- resources-permits/wastewater-branch/npdes-wastewater/authorization-to-construct. J. In addition to this Authorization to Construct, the Applicant should be aware that other permits may be required from other Sections of the Division of Water Resources (for example: reclaimed water facilities permits; Class A or B biosolids residuals permit). SECTION 2: APPLICANT INFORMATION AND PROJECT DESCRIPTION A. APPLICANT Applicant's name County of Brunswick Signature authority's name per 15A NCAC 02T.0106(b) John Nichols Signature authority's title Director of Public Utilities Complete mailing address P.O. Box 249, Bolivia, NC 28422-0249 Telephone number (910) 253-2657 Email address John.nichols@brunswickcountync.gov B. PROFESSIONAL ENGINEER Professional Engineer's name Joshua A. Powell Professional Engineer's title Staff Engineer North Carolina Professional Engineer's License No. 046998 Firm name McKim & Creed, Inc Firm License number F-1222 Complete mailing address 1730 Varsity Drive, Suite 500, Raleigh, NC 27606 Application for Authorization to Construct Permit (FORM ATC-12-14) Page 1 I Water Resources ENVIRONMENTAL QUALITY Telephone number Email address C. NPDES PERMIT State of North Carolina Department of Environmental Quality Division of Water Resources APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) (919) 233-8091 jpowell@mckimcreed.com NPDES Permit number NCO086819 Current Permitted flow (MGD) — include permit 4.975 MGD flow phases if applicable D. PROJECT DESCRIPTION Provide a brief description of the project: The project will expand the existing NE Brunswick Regional WWTP from its current capacity of 2,475 MGD to a capacity of 4.975 MGD after construction with provisions made at this time to allow Future expansion to_6.225_MGD. Expansion will in_eeneral_consist of construction of: a new headworks-structure, new_EQ pump station; headworks/P5 odor control system; new ELQ.tank to be tied into the existing EQ tank; a new anaerobic selector feeding two oxidation ditches with provisions for a third future ditch made; two secondary clarifiers with provisions made for a third future clarifier; two new tertiary, disc filters with provision made for a third disc filter to be installed later; a new open channel UV system consisting of two channels each containing two banks of lamps with provisions made for a third future channel to be added in the future; a new cascade aeration structure; a new effluent Dump station and force main to tie into the existing diffuser in the Cape Fear River; new non -potable water feed pumps at the effluent PS to feed a new NPW distributions stem for plant water: new mechanical building equipped with blowers. RASIWAS oumps. NaOH feed pumps; new rotary drum thickening facility with two rotary drum thickeners and polymer feeds stem and thickened WAS storage facilit • two new ATAD reactors with transfer pumps and provisions made for a future third ATAD reactor; two post ATAD storage tanks for digested solids storage; ado_r control system for the ATAD reactors and storage tanks, new truck loading pad with transfer pumps to feed digested solids from the dust ATAD tanks to the truck loading discharge; new electrical building with new electrical distribution system and controls and backup generator system. SECTION 3: APPLICATION ITEMS REQUIRED FOR SUBMITTAL FOR ALL PROJECTS A. Cover Letter ® The letter must include a request for the Authorization to Construct; the facility NPDES Number; a brief project description that indicates whether the project is a new facility, facility modification, treatment process modification, or facility expansion; the construction timeline; and a list of all items and attachments included in the application package. ® If any of the requirements of 15 NCAC 02H. 0100, 15A NCAC 02T, North Carolina General Statute 133-3, North Carolina General Statute 143-215.1, and Division of Water Resources_ Minimum Design_ Criteria for NPDES Wastewater Treatment Facilities are not met by the proposed design, the letter must include an itemized list of the requirements that are not met. B. NPDES Permit ❑ Submit Part I of the Final NPDES permit for this facility that includes Part A (Effluent Limitations and Monitoring Requirements) for the monthly average flow limit that corresponds to the work that is requested for this project. — Not Included. Permit to be issued as draft. C. Special Order by Consent ❑ If the facility is subject to any Special Orders by Consent (SOC), submit the applicable SOC. ® Not Applicable. Application for Authorization to Construct Permit (FORM ATC-12-14) Page 2 Water Resources ENVIRONMENTAL QUALITY State of North Carolina Department of Environmental Quality Division of Water Resources APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) D. Finding of No Significant Impact or Record of Decision ® Submit a copy of the Finding of No Significant Impact or Record of Decision for this project. ❑ Provide a brief description of any of the mitigating factors or activities included in the approved Environmental Document that impact any aspect of design of this project, if not specified in the Finding of No Significant Impact or Record of Decision. ❑ Not Applicable. E. Engineering Plans ® Per 15A NCAC 02T .0504(c)(1), submit one set of detailed plans that have been signed, sealed and dated by a North Carolina Licensed Professional En ineer. ® Per 21 NCAC 56.1103(a)(6), the name, address and License number of the Licensee's firm shall be included on each sheet of the engineering drawings. ® Plans must be labeled as follows: FINAL DRAWING — FOR REVIEW PURPOSES ONLY— NOT RELEASED FOR CONSTRUCTION. ® 15A NCAC 02H .0124 requires multiple (dual at a minimum) components such as pumps, chemical feed systems, aeration equipment and disinfection equipment. Is this requirement met by the design? ® Yes or ❑ No. If no, provide an explanation. Plans shall include: ® Plans for all applicable disciplines needed for bidding and construction of the proposed project (check as appropriate): ® Civil ❑ Not Applicable ® Process Mechanical ❑ Not Applicable ® Structural ❑ Not Applicable ® Electrical ❑ Not Applicable ® Instrumentation/Controls ❑ Not Applicable ❑ Architectural ® Not Applicable ® Building Mechanical ❑ Not Applicable ❑ Building Plumbing ® Not Applicable ® Plan and profile views and associated details of all modified treatment units including piping, valves, and equipment (pumps, blowers, mixers, diffusers, etc.) ® Are any modifications proposed that impact the hydraulic profile of the treatment facility? ® Yes or ❑ No. If yes, provide a hydraulic profile drawing on one sheet that includes all impacted upstream and downstream units. The profile shall include the top of wall elevations of each impacted treatment unit and the water surface elevations within each impacted treatment unit for two flow conditions: (1) the NPDES permitted flow with all trains in service and (2) the peak hourly flow with one treatment train removed from service. ® Are any modifications proposed that impact the process flow diagram or process flow schematic of the treatment facility? ® Yes or ❑ No. If yes, provide the process flow diagram or process flow schematic showing all modified flow paths including aeration, recycle/return, wasting, and chemical feed, with the location of all monitoring and control instruments noted. F. ® Engineering Specifications ® Per 15A NCAC 02T .0504(c)(2), submit one set of specifications that have been signed, sealed and dated by a North Carolina Licensed Professional En ig neer. Application for Authorization to Construct Permit (FORM ATC-12-14) Page 3 State of North Carolina Department of Environmental Quality Division of Water Resources Water Resources ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) ® Specifications must be labeled as follows: FINAL SPECIFICATIONS — FOR REVIEW PURPOSES ONLY — NOT RELEASED FOR CONSTRUCTION. Specifications shall include: ® Specifications for all applicable disciplines needed for bidding and construction of the proposed project (check as appropriate): ® Civil ❑ Not Applicable ® Process Mechanical ❑ Not Applicable ® Structural ❑ Not Applicable ® Electrical ❑ Not Applicable ® Instrumentation/Controls ❑ Not Applicable ❑ Architectural ® Not Applicable ® Building Mechanical ❑ Not Applicable ® Building Plumbing ❑ Not Applicable ® Detailed specifications for all treatment units and processes including piping, valves, equipment (pumps, blowers, mixers, diffusers, etc.), and instrumentation. ® Means of ensuring quality and integrity of the finished product including leakage testing requirements for structures and pipelines, and performance testing requirements for equipment. ® Bid Form for publicly bid projects. G. Construction Sequence Plan ® Construction Sequence Plan such that construction activities will not result in overflows or bypasses to waters of the State. The Plan must not imply that the Contractor is responsible for operation of treatment facilities. List the location of the Construction Sequence Plan as in the Engineering Plans or in the Engineering Specifications or in both: Section 01 14 00 — Summa ry Subsection 1.5 — Work Secl uence. H. Engineering Calculations ® Per 15A NCAC 02T.0504(c)(3), submit one set of engineering calculations that have been signed, sealed and dated by a North Carolina Licensed Professional Engineer; the seal, signature and date shall be placed on the cover sheet of the calculations. For new or expanding facilities and for treatment process modifications that are included in Section 4.C, the calculations shall include at a minimum: ® Demonstration of how peak hour design flow was determined with a justification of the selected peaking factor. ® Influent pollutant loading demonstrating how the design influent characteristics in Section 4.13.2 of this form were determined. ® Pollutant loading for each treatment unit demonstrating how the design effluent concentrations in Section 4.13.2 of this form were determined. ® Hydraulic loading for each treatment unit. ® Sizing criteria for each treatment unit and associated equipment (blowers, mixers, pumps, etc.) ® Total dynamic head (TDH) calculations and system curve analysis for each pump specified that is included in Section 4.C.6. ® Buoyancy calculations for all below grade structures. ® Supporting documentation that the specified auxiliary power source is capable of powering all essential treatment units. Application for Authorization to Construct Permit (FORM ATC-12-14) Page 4 K, Water Resources ENVIRONMENTAL QUALITY I. Permits J. State of North Carolina Department of Environmental Quality Division of Water Resources APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) ® Provide the following information for each permit and/or certification required for this project: Permit/Certification Not Applicable Date Submitted Date Approved Permit/ Certification Number If Not Issued Provide Status and Expected Issuance Date Dam Safety X Soil Erosion and Sediment Control TBD 11/02/18 USCOE / Section 404 Permit/NWP X 05/13/19 SAW 2009- 01238 39 Water Quality Certification (4011 11/02/18 TBD 4/17/19 DWR 2019- 0318 USCOE / Section 10 X Stormwater Management Plan X CAMA NCDOT Driveway Permit NCDOT Public Water Supply Permit TBD TBD Railroad Encroachment Agreement X Other: USACE Nationwide Permit 39 X 05/13/19 Residuals Management Plan ® For all new facilities, expanding facilities, or modifications that result in a change to sludge production and/or sludge processes, provide a Residuals Management Plan meeting the requirements of 15A NCAC 02T .0504(i) and 15A NCAC 02T .0508; the Plan must include: ® A detailed explanation as to how the generated residuals (including trash, sediment and grit) will be collected, handled, processed, stored, treated, and disposed. ® An evaluation of the treatment facility's residuals storage requirements based upon the maximum anticipated residuals production rate and ability to remove residuals. ® A permit for residuals utilization or a written commitment to the Applicant from a Permittee of a Department approved residuals disposal/utilization program that has adequate permitted capacity to accept the residuals or has submitted a residuals/utilization program application. ® If oil, grease, grit or screenings removal and collection is a designated unit process, a detailed explanation as to how the oil/grease will be collected, handled, processed, stored and disposed. ❑ Not Applicable. Application for Authorization to Construct Permit (FORM ATC-12-14) Page 5 State of North Carolina Department of Environmental Quality Division of Water Resources j Water Resources ENVIRONMEN FAE QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) SECTION 4: PROJECT INFORMATION A. WASTEWATER TREATMENT PLANT FLOW INFORMATION —COMPLETE FOR NEW OR EXPANDING FACILITIES 1. Provide the following flow information: � Plant Flows Existing Plant Design Current NPDES Permit Limit Current Annual Average (past 12 months) Maximum Month Maximum Day ] Peak Hour For Past 12 Months: Start Date: April 2018 End Date: March 2019 2.72 MGD 4.27 MGD 4.94 MGD 2.475 MGD 4.975 MGD 2.27 MGD For Past 24 Months: Start Date: April 2017 End Date: March 2019 2.72 MGD 4.27 MGD 4.94 MGD Application for Authorization to Construct Permit (FORM ATC-12-14) Page 6 F --7"- lT� Water Resources ENVIRONMENTAL QUALIFY State of North Carolina Department of Environmental Quality Division of Water Resources APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) B. WASTEWATER TREATMENT FACILITY DESIGN INFORMATION —COMPLETE FOR NEW OR EXPANDING FACILITIES AND FOR TREATMENT PROCESS MODIFICATIONS 1. Have all of the requirements of 15 NCAC 02H. 0100, 15A NCAC 02T, North Carolina General Statute 133-3, North Carolina General Statute 143-215.1, and Division of Water }resources Minimum Design Criteria for NPDES Wastewater Treatment Facilities been met by the proposed design and specifications? ® Yes or ❑ No. If no, provide justification as to why the requirements are not met, consistent with 15A NCAC 02T .0105(n): 2. Provide the design influent and effluent characteristics that are used as the basis for the project design, and the NPDES permit limits for the following parameters: Project Basis of Design Design Influent Design Influent Influent Concentration Load Concentration - (Must be (Must be Current Annual supported by supported by Design Effluent Average g (past Engineering Engineering Concentration and/or NPDES Permit Limits 12 months) if Calculations Calculations Load (monthly average) Parameter Available [Section 3.H]) [Section 3.H]) Ammonia Nitrogen 1.0 mg/L Summer mg/L Summer (NH3-N) 39 mg/L 30 mg/L 626 lb/day 2.0 mg/L Winter mg/L Winter Biochemical 5.0 mg/L Summer mg/L Summer Oxygen Demand 293 mg/L 325 mg/L 6,776 lb/day (BOD5) 10.0 mg/L Winter mg/L Winter 35 per 100 mL per 100 mL Fecal Coliform Nitrate + Nitrite Nitrogen (NO3-N + mg/L mg/L NO2-N) 938 Ibs/day Total Kjeldahl 38 mg/L 45 mg/L Nitrogen 6 mg/L mg/L Total Nitrogen 125lb/year lb/year 2 mg/L mg/L Total Phosphorus 5.2 mg/L 7.0 mg/L 146 lb/day 259 mg/L 350 mg/L 7,298 lb/day 42lb/year lb/year mg/L Total Suspended 10 mg/L Solids (TSS) I 3. Based on the "Project Basis of Design" parameters listed above, will the proposed design allow the treatment facility to meet the NPDES Permit Limits listed above? ® Yes or ❑ No. If no, describe how and why the Permit Limits will not be met: Application for Authorization to Construct Permit (FORM ATC-12-14) Page 7 Water Resources ENVIRONMENTAL QUALITY State of North Carolina Department of Environmental Quality Division of Water Resources APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) 4. Per 15A NCAC 02T .0505(i), by-pass and overflow lines are prohibited. Is this condition met by the design? ® Yes or ❑ No If no, describe the treatment units bypassed, why this is necessary, and where the bypass discharges: 5. Per 15A NCAC 02T .0505(k), multiple pumps shall be provided wherever pumps are used. Is this condition met by the design? ® Yes or ❑ No. If no, provide an explanation: 6. Per 15A NCAC 02T .0505(I), power reliability shall be provided consisting of automatically activated standby power supply onsite capable of powering all essential treatment units under design conditions, or dual power supply shall be provided per 15A NCAC 02H. 0124 2 a). Is this condition met by the design? ® Yes or ❑ No. If no, provide (as an attachment to this Application) written approval from the Director that the facility: ➢ Has a private water supply that automatically shuts off during power failures and does not contain elevated water storage tanks, and ➢ Has sufficient storage capacity that no potential for overflow exists, and ➢ Can tolerate septic wastewater due to prolonged detention. 7. Per 15A NCAC 02T .0505(ol, a minimum of 30 days of residual storage shall be provided. Is this condition met by the design? ® Yes or ❑ No. If no, explain the alternative design criteria proposed for this project in accordance 15A NCAC 02T .105(n): 8. Per 15A NCAC 02T .05051q), the public shall be prohibited from access to the wastewater treatment facilities. Explain how the design complies with this requirement: The site shall be surrounded by chainlink fencing to limit access to all facilities. 9. Is the treatment facility located within the 100-year flood plain? ❑ Yes or ® No. If yes, describe how the facility is protected from the 100-year flood: C. WASTEWATER TREATMENT UNIT AND MECHANICAL EQUIPMENT INFORMATION —COMPLETE FOR NEW OR EXPANDING FACILITIES AND FOR MODIFIED TREATMENT UNITS 1. PRELIMINARY AND PRIMARY TREATMENT (i.e., physical removal operations and flow equalization)- No. of Plan Sheet Specification Calculations Treatment Unit Type Size per Unit Provided? Units Reference Reference 1. (Yes or No) Manual Bar Screen MGD at peak hourly flow Mechanical Bar M05.0 — 3 Drum Screens 7.785 MGD at peak hourly flow 46 21 33 Screen Shaftless Spiral M05.1 Screening M05.01— 1 250 CFH 46 2172 Conveyor Conveyor Headcell 15.57 MGD at peak hourly flow M05.1 46 23 00 Grit Removal 1 M05.0 — _ GritCleanse M05.1 Grit Washing / M05.0 — 1 300 gpm 46 23 00 Dew atering M05.1 M15.0 — 33 1630 Flow Equalization 1 Prestressed 956,000 gallons Concrete Tank M15.1 Primary Clarifier _ Circular ft diameter; ft side water depth square feet; ft side Primary Clarifier Rectangular water depth Other Application for Authorization to Construct Permit (FORM ATC-12-14) Page 8 ,i Water Resources State of North Carolina Department of Environmental Quality Division of Water Resources ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) 2. SECONDARY TREATMENT (BIOLOGICAL REACTORS AND CLARIFIERS) (i.e., biological and chemical processes to remove organics and nutrients) _ No. of Plan Sheet Specification Calculations Treatment Unit Units Type Size per Unit Reference Reference Provided? (Yes or No) Aerobic Zones/ Tanks gallons Anoxic Zones/ Tanks gallons Anaerobic Anaerobic Zones/Tanks 3 Selector 78 000 gallons Sequencing Batch Reactor (SBR) gallons Membrane Bioreactor (MBR) gallons Circular Secondary Clarifier 2 65 ft diameter; 15 ft side water depth Rectangular Secondary Clarifier square feet; ft side water depth Oxidation Other 2 Ditch (time = 1.0 MG 85% aerobic/ 15% anoxic) 3. TERTIARY TREATMENT M20.0 — 46 53 61 M20.2 M30.0 - 1 46 43 21 M30.1 M20.0 — ! 46 53 61 M20.2 No. of Plan Sheet Specification Calculations Treatment Unit Type Size per Unit Provided? Units Reference Reference (Yes or No) I Tertiary Clarifier Circular ft diameter; ft side water depth Rectangular Tertiary Clarifier square feet; ft side water depth Automatic Tertiary Filter 2 Backwash Disc 744 square feet M35.0 46 61 46 Filters square feet Tertiary Membrane Filtration Post -Treatment Flow Equalization gallons 1 Cascade M45.0 Post -Aeration N/A gallons 03 30 00 Aeration _I _ Other 4. DISINFECTION No. of Plan Sheet Specification Calculations Treatment Unit Units Type Size per Unit Reference Reference Provided? (Yes or No) Application for Authorization to Construct Permit (FORM ATC-12-14) Page 9 i Water- Resources ENVIRONMENTAL QUALITY State of North Carolina Department of Environmental Quality Division of Water Resources APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) Ultraviolet Light 4 Chlorination Dechlorination S. RESIDUALS TREATMENT Treatment Unit No. of Units Gravity Thickening Tank Mechanical Thickening/ 2 Dewatering Aerobic Digestion 2 Anaerobic Digestion Composting Drying 2w 2,500,000 gal/day per bank at I with twos peak hourly flow; 2 number of banks in series M40.0 banks; 48 number of (1 redundant lamps/bank channel) gallons of contact (Gas; tablet; liquid) tank/unit (Gas; gallons of contact tablet; liquid) tank/unit Type Rotary Drum Thickeners Autothermal Thermophilic (ATAD) 46 66 00 Plan Sheet Specification i Calculations Size per Unit Provided? Reference , Reference (Yes or No) square feet; ft side 1,654 dry lb/hour M60.0 — 467133 M60.2 78,000 gallons M70.0 — 46 73 24 M70.2 gallons dry lb/hour dry lb/hour Other 2 Sludge Feed 560 gpm M60.0 — 467133 Flocculator I I M60.2 6. PUMP SYSTEMS (include influent, intermediate, effluent, major recycles, waste sludge, thickened waste sludge and plant drain pumps) Capacity of Location I No. of purpose Type each pump Plan Sheet Specification Pumps TDH Reference Reference GPM Remove Grit from Headworks 1 Headcell and send Grit Pump 300 22 to GritCleanse Unit Pump Influent Flow EQ Pump Station 3 from Headworks to Submersible Solids 5,400 66.5 Handling Pump EQ Basins Dry -Pit Motive Liquid Jet Mixing of new New EQ Basin 2 3,200 22 EQ Basin Pump Oxidation Ditch 4 Jet Mixing of Dry -Pit Motive Liquid 3,995 19 Oxidation Ditches Pump Pump Scum from Vertical Wet Well Scum Pump Station 2 Secondary Clarifiers 105 13 back to Headworks Chopper Pump M05.0 — 46 23 00 M05.1 i M 10.0 43 26 10.01 M 15.0 — 46 51 17.01 M 15.1 M20.0 — 46 53 61 M20.2 M30.0 — 43 26 14 M30.1 Application for Authorization to Construct Permit (FORM ATC-12-14) Page 10 Kro i Water Resources ENVIRONMENTAL QUALITY State of North Carolina Department of Environmental Quality Division of Water Resources APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) Effluent Pump Pumping treated Submersible Solids M50.0 - 3 effluent to the 2,610 28 43 26 10.02 Station Handling Pump M50.1 discharge diffuser Feed treated Effluent Pump effluent to the plant Vertical Turbine M50.0 - Station 2 NPW distribution Pumps 200 185 M50.1 432641 syste m Feed RAS to the RAS/WAS Pump Anaerobic Selector Horizontal Solids M55.0- Building 3 and WAS to the Handling Pumps 1,240 28 M55.1 4323 13 rotary drum thickeners M65.0- ATAD Pump Station ATAD Reactor Feed Facility 2 Pumps Post ATAD Transfer Rotary Lobe PD 750 40 M65.1 43 23 58 ATAD Pump Station M65.0 - Facility 2 Pump Rotary Lobe PD 750 31 M65.1 43 23 58 ATAD Transfer M70.0 - ATAD Reactors 2 Rotary Lobe PD 750 20 43 23 58 Pump ATAD Truck Loading M70.1 Solids Handling M75.0- ATAD Holding Basins 2 750 26 432313 Pump Centrifugal M75.1 Jet Motive Pump / ATAD Holding Basins 2 Mixing of Holding Centrifugal 3,550 10 M75.0 - 46 73 25 Basin M75.1 Jet Motive Pump / Existing EQ Basin 1 Mixing of Holding Centrifugal 2,196 21 M80.0 46 51 17.02 Basin 7. MIXERS Location No. of Mixers Purpose Type Anaerobic Selector 3 Mixing of Anaerobic Submersible Tanks Mixing ATAD Reactors _ Rooftop Mounted Submersible Mixer ATAD Reactors 2 8. BLOWERS Location No. of Purpose Type Blowers) New EQ Tank 2 Jet Aeration Blower Rotary Lobe PD Blower Building 3 Jet Aeration Blower Screw Blower Power of plan Sheet Specification each Mixer Reference Reference (HP) M20.0 - 2.7 46 53 61 M20.2 M70.0 - 5 46 73 24 M70.2 Capacity of Plan Sheet Specification each Blower Reference Reference _ (CBlo M 15.0 - 660 46 51 17.01 M15.1 M55.0- 2,000 46 53 61 M55.1 Application for Authorization to Construct Permit (FORM ATC-12-14) f Water Resources ENVIRONMENTAL QUALITY State of North Carolina Department of Environmental Quality Division of Water Resources APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) Mixing / aeration / Centrox Aerators ATAD Reactors 8 foam control in (Aeration Propeller N/A M70.0 — 46 73 24 ATAD Reactors and Cone Assembly) M70.2 Jet Aeration Blower Rotary Lobe PD 450 M75.0 — ATAD Holding Basins 2 46 73 25 600 M75.1 M80.0 46 51 17.02 Existing EQ Basin 1 Jet Aeration Blower Rotary Lobe PD 9. ODOR CONTROL Location No. of Units Purpose Type Plan Sheet i Specification Reference Reference Odor Control of Headworks and EQ 1 Headworks and EQ Converting Dry Air Scrubber M07.0 44 30 00.01 PS _ PS ATAD Reactor and _ Dual Stage Biological Tricking Filter ATAD Holding Basins 1 ATAD Holding Tank M75.0 44 30 00.02 and Biofilter Odor Control D. SETBACKS —COMPLETE FOR NEW WASTEWATER TREATMENT STRUCTURES 1. The minimum distance for each setback parameter to the wastewater treatment/storage units per 15A NCAC 02T .0506(b) are as follows: Setback Parameter Minimum Distance Is Minimum Distance Required from Nearest Requirement met by the Treatment/Storage Design? If "No", identify Unit Setback Waivers in Item D.2 Below Any habitable residence or place of assembly under separate 100 ft ® Yes ❑ No ownership or not to be maintained as part of the project site Any private or public water supply source 100 ft ® Yes ❑ No Surface waters (streams — intermittent and perennial, perennial 50 ft ®Yes ❑ No waterbodies, and wetlands) Any well with exception of monitoring wells 100 ft ® Yes ❑ No Any property line 50 ft ® Yes ❑ No 2. Have any setback waivers been obtained per ISA_NCAC 02T .0506(d1? ❑ Yes or ® No. If yes, have these waivers been written, notarized and signed by all parties involved and recorded with the County Register of Deeds? ❑ Yes or ❑ No. If no, provide an explanation - Application for Authorization to Construct Permit (FORM ATC-12-14) Page 12 Water Resources ENVIRONMENTAL QUALITY State of North Carolina Department of Environmental Quality Division of Water Resources APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) SECTION 5: APPLICATION CERTIFICATION BY PROFESSIONAL ENGINEER Professional Engineer's Certification per 15A NCAC 02T .0105: I, Joshua A Powell. PE, attest that this application package for an Authorization to Construct (Typed Name of Professional Engineer) for the Northeast Brunswick Regional Water Reclamation Facility 2.5 MGD Facility Expansion (Facility and Project Name) was prepared under my direct supervisory control and to the best of my knowledge is accurate, complete and consistent with the information supplied in the engineering plans, specifications, calculations, and all other supporting documentation for this project. I further attest that to the best of my knowledge the proposed design has been prepared in accordance with all applicable regulations and statutes, 15 NCAC 02H. 01001 15A NCAC 02T, North Carolina General Statute 133-3, North Carolina General Statute 143-215.1, and Division of Water Resources Minimum Design Criteria for NPDES Wastewater Treatment Facilities, and this Authorization to Construct Permit Application, except as provided for and explained in Section 4.13.1 of this Application. I understand that the Division of Water Resources' issuance of the Authorization to Construct Permit may be based solely upon this Certification and that the Division may waive the technical review of the plans, specifications, calculations and other supporting documentation provided in this application package. I further understand that the application package may be subject to a future audit by the Division. Ahough certain portions of this submittal package may have been prepared, signed and sealed by other professionals licensed in North Carolina, inclusion of these materials under my signature and seal signifies that I have reviewed the materials and have determined that the materials are consistent with the project design. I understand that in accordance with General Statutes 143.215.6A and 143-215.613, any person who knowingly makes any false statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may include a fine not to exceed $10,000, as well as civil penalties up to $25,000 per violation. North Carolina Professional Engineer's seal with written signature placed over or adjacent to the seal and dated: Application for Authorization to Construct Permit (FORM ATC-12-14) Page 13 State of North Carolina Kil', ` Department of Environmental Quality Division of Water Resources Water Resources ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14) SECTION 6: APPLICATION CERTIFICATION BY APPLICANT Applicant's Certification per 15A NCAC 02T .0106[b): I, John Nichols, Director of Public Utilitiesattest that this application package for an Authorization to Construct (Typed Name of Signature Authority and Title) for the Northeast Brunswick_ Regional Water Reclamation Facility 2.5 MGD Facility Expansion (Facility and Project Name) has been reviewed by me and is accurate and complete to the best of my knowledge. I also understand that if all required parts of this application package are not completed and that if all required supporting information and attachments are not included, this application package will be returned to me as incomplete. I further certify that in accordance with 15A NCAC 02T .0120(b), the Applicant or any affiliate has not been convicted of environmental crimes, has not abandoned a wastewater facility without proper closure, does not have an outstanding civil penalty where all appeals have been abandoned or exhausted, are compliant with any active compliance schedule, and does not have any overdue annual fees. I understand that the Division of Water Resources' issuance of the Authorization to Construct Permit may be based solely upon acceptance of the Licensed Professional Engineer's Certification contained in Section 5, and that the Division may waive the technical review of the plans, specifications, calculations and other supporting documentation provided in this application package. I further understand that the application package may be subject to a future audit. I understand that in accordance with General Statutes 143-215.6A and 143-215.6B any person who knowingly makes any false statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may include a fine not t xc d 1 ,000, as well as civil penalties up to $25,000 per violation. Signature: Date: THE COMPLETED APPLICATION AND SUPPORTING INFORMATION SHALL BE SUBMITTED TO: NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER RESOURCES/NPDES By U.S. Postal Service By Courier/Special Delivery: 1617 MAIL SERVICE CENTER 512 N. SALISBURY STREET, 9TH FLOOR RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604 TELEPHONE NUMBER: (919) 707-3610 Application for Authorization to Construct Permit (FORM ATC-12-14) Page 14 The NE Brunswick Regional WWTP is currently operated under NPDES Permit NC0086819. The NPDES permit renewal application was submitted to the NPDES Complex Permitting, Wastewater Branch on January 24, 2019. It is understood that a draft permit will be issued by that division. A copy of the previous NPDES permit effective on December 1, 2011 has been included to this submittal package for reference. Permit NCO086819 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY NPDES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provisions of North Carolina General Statute 143-2IS. 1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, Brunswick County is hereby authorized to discharge wastewater from a facility located at Northeast Brunswick Regional WWTP 10480 Royster Road NE (NCSR 1431) Leland Brunswick County to receiving waters designated as the Cape Fear River in the Cape Fear River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and IV hereof. This permit shall become effective December 1, 2011. This permit and authorization to discharge shall expire at midnight on November 30, 2016. Signed this day November 7, 2011. Coleen H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission 1 Permit NCO086819 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included herein. Brunswick County is hereby authorized to: 1. Continue to operate an existing 1.65 MGD wastewater treatment plant consisting of the following: ♦ Mechanical and manual bar screen ♦ Mechanical grit removal ♦ Influent flow meter ♦ Dual anaerobic selector tanks ♦ Dual oxidation ditch with mechanical rotors ♦ Rotary drum thickener with polymer injection system ♦ Dual secondary clarifiers ♦ Dual tertiary membrane drum filters ♦ Dual UV disinfection system (in series) ♦ Parshall flume effluent flow meter ♦ Cascade post -aeration ♦ Aerated sludge holding tank (375,000 gal) ♦ Autothermal thermophilic aerobic digestion (ATAD) unit ♦ Backup generator facility 2. After receiving an Authorization to Construct, construct and operate a 2.475 MGD (Phase 1) wastewater treatment plant; 3. After receiving an Authorization to Construct, construct and operate a 3.8 MGD (Phase 2) wastewater treatment plant; 4. Discharge from said treatment works (via Outfall 001) at the location specified on the attached map into the Cape Fear River, classified SC PNA HQW waters in the Cape Fear River Basin. 2 Permit NCO086819 A. t 1 ] EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (1.65 MGDI During the permit period on the effective date of this permit and lasting until expiration or expansion, the Permittee shall be authorized to discharge treated effluent from Outfall 001 subject to the following effluent limitations and monitorin requirements: EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily Max Measurement Frequency For Grade 3 Sample Type Sample Location' Flow 1.65 MGD Continuous Recordin I or E BOD, 5-day, 20°C2 (Summer)3 5.0 mg/L 7.5 mg/L 3/Week Composite I & E BOD, 5-day, 20°C2 (Winter)3 10.0 mg/L 15.0 mg/L 3/Week Composite I & E Total Suspended Solids2 10.0 mg/L 15.0 maL 3/Week Composite I & E NH3 as N Summer)3 1.0 m L 3.0 m /L 3 Week Composite E NH3 as N (Winter)3 2.0 m L 6.0 m L 3/Week Composite E Enterococci (geometric mean) 35/ 100 ml 276/ 100ml r 3/Week Grab E Temperature, °C Monitor and Report Daily Grab E H 6.0 — 9.0 standard units 3/Week Grab E Dissolved Oxygen 4 Monitor and Report 3/Week Grab E Conductivity Monitor and Report 3/Week Grab E Total Nitrogen m L 5 Monitor and Report Monthlv Com osite E Total Phosphorus m L Monitor and Report Monthly Composite E Total Mercu n 1 6 Monitor and Report Quarterly Grab E Total Copper Monitor and Report Quarterly Composite E Total Zinc Monitor and Report Quarterly Composite I E Acute Toxicit 7 Monitor and Report Quarterly Composite E Effluent Pollutant Scans Monitor and Report Annually Composite E Dissolved Oxygen9 Monitor and Report Variable$ Grab U & D Temperature, 'C9 Monitor and Report Variable$ Grab U & D Conductivit 9 Monitor and Report Variables Grab U & D Footnotes: 1. Sample Location: I - Influent, E - Effluent, U- Upstream, D - Downstream. 2. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent value (85% removal). 3. Summer = April 1-October 31, Winter = November 1-March 31. 4. The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L. 5. TN = TKN + NO3-N + NO2-N, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 6. Mercury shall be analyzed by EPA Method 1631E. 7. Acute Toxicity (Fathead Minnow 24-hour) No Significant Mortality @ 90%; January, April, July, and October, See Special Condition A. (4.) 8. Effluent Pollutant Scan- see Special Condition A (5). 9. Instream monitoring requirements are waived as long as facility retains membership in the CFRBA. If membership is cancelled, facility will immediately restart instream monitoring at 3/Week (June -Sept.) and 1/Week (Oct. -May). There shall be no discharge of floating solids or visible foam in other than trace amounts Permit NCO086819 A. 2 EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS 2.475 MGD Beginning upon expansion to 2.475 MGD and lasting until expiration or expansion, the Permittee shall be authorized to discharge treated effluent from Outfall 001 subject to the following effluent limitations and monitoring requirements: EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily Max Measurement Frequency For Grade 3 Sample Type Sample Location' Flow 2.475 MGD Continuous Recording I or E BOD, 5-day, 20°C2 (Summer)3 5.0 mg/L 7.5 mg/L 3/Week Composite I & E BOD, 5-day, 20°C2 (Winter)3 10.0 mg/L 15.0 mg/L 3/Week Composite I & E Total Suspended Solids 2 10.0 m L 15.0 m L 3/Week Composite I & E NH3 as N (Summer )3 1.0 m L 1 3.0 m L I 3/Week Composite E NH3 as N (Winter)3 2.0 m L 6.0 m /L 3/Week Composite E Enterococci Geometric Mean 35/ 100 ml 276/ 100ml 3/Week Grab E Temperature, °C Monitor and Report Daily Grab E H 6.0 - 9.0 standard units 3/Week Grab E Dissolved Oxygen 4 Monitor and Report 3/Week Grab E Conductivitv Monitor and Report 3/Week Grab E Total Nitro en m L 5 Monitor and Report Month' Com osite E Total Phosphorus (mgJLJ Monitor and Report Monthly Composite E Total Mercury n /1)6 Monitor and Report Quarterly Grab E Total Copper u 1 Monitor and Report Quarterly Composite E Total Zinc u 1 Monitor and Report Quarterly Composite E Acute Toxicit 7 Monitor and Report Quarterly Composite E Effluent Pollutant Scan8 Monitor and Report Annually Composite E Dissolved Oxygen9 Monitor and Report Variable8 Grab U & D Temperature, 'C9 Monitor and Report Variable$ Grab U & D Conductivitv9 Monitor and Report Variable8 Grab U & D Fnntn ntec- 1. Sample Location: I - Influent, E - Effluent, U- Upstream, D - Downstream. 2. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent value (85% removal). 3. Summer = April 1-October 31, Winter = November 1-March 31. 4. The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L. 5. TN = TKN + NO3-N + NO2-N, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 6. Mercury shall be analyzed by EPA Method 1631E 7. Acute Toxicity (Fathead Minnow 24-hour) No Significant Mortality Oa 90%; January, April, July, and October, See Special Condition A.(4) 8. Effluent Pollutant Scan- see Special Condition A (5) 9. Instream monitoring requirements are waived as long as facility retains membership in the CFRBA. If membership is cancelled, facility will immediately restart instream monitoring at 3/Week (June -Sept.) and 1/Week (Oct. -May). There shall be no discharge of floating solids or visible foam in other than trace amounts !! Permit NCO086819 A. (3) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (3.8 MGD) Beginning upon expansion to 3.8 MGD and lasting until expiration, the Permittee shall be authorized to discharge treated effluent from Outfall 001 subject to the following effluent limitations and monitoring requirements: EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily Max Measurement Frequency For Grade 4 Sample Type Sample Location' Flow 3.8 MGD Continuous Recording I or E BOD, 5-day, 201C2 (Summer)3 5.0 mg/L 7.5 mg/L Daily Composite I & E BOD, 5-day, 20°C2 (Winter)3 10.0 mg/L 15.0 mg/L Daily Composite I & E Total Suspended Solids2 10.0 m L 15.0 m /L Daily Composite I & E NH3 as N (Summer)3 1.0 m L 3.0 m /L Daily Composite E NH3 as N (Winter)3 2.0 mgZL 6.0 m L Daily Composite E Enterococci Geometric Mean 35/ 100 ml 276/ 100ml Daily Grab E Temperature, 'C Monitor and Report Daily Grab E H 6.0 — 9.0 standard units Daily Grab E Dissolved Oxygen 4 Monitor and Report Daily Grab E Conductivity Monitor and Report Daily Grab E Total Nitrogen m L 5 Monitor and Report Monthly Composite E Total Phosphorus m L Monitor and Report Monthly Composite E Total Mercury (n 1)6 Monitor and Report Quarterly Grab E Total Co er (u 1) Monitor and Report Quarterly Composite E Total Zinc u 1 Monitor and Report Quarter' Composite E Acute Toxicity' Monitor and Re ort Quarter! Composite E Effluent Pollutant Scan8 Monitor and Report Annually E Dissolved O en9 Monitor and Report Variable6U & D Temperature, oC9 Monitor and Report Variable$ Grab U & D Conductivity9 Monitor and Report Variable8 Grab U & D Footnotes: 1. Sample Location: I - Influent, E - Effluent, U- Upstream, D - Downstream. 2. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent value (85% removal). 3. Summer = April 1-October 31, Winter = November 1-March 31. 4. The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L. 5. TN = TKN + NO3-N + NO2-N, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 6. Mercury shall be analyzed by EPA Method 1631E 7. Acute Toxicity (Fathead Minnow 24-hour) No Significant Mortality @ 90%; January, April, July, and October, See Special Condition A.(4) 8. Effluent Pollutant Scan- see Special Condition A (5). 9. Instream monitoring requirements are waived as long as facility retains membership in the CFRBA. If membership is cancelled, facility will immediately restart instream monitoring at 3/Week (June -Sept.) and 1/Week (Oct. -May). There shall be no discharge of floating solids or visible foam in other than trace amounts Permit NCO086819 A. 14.1 ACUTE TOXICITY PASS / FAIL PERMIT LIMIT IORTRLY The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity In A Single Effluent Concentration" (Revised -July, 1992 or subsequent versions). The monitoring shall be performed as a Fathead Minnow (Pimephales promelas) 24-hour static test. The effluent concentration at which there may be at no time significant acute mortality is 90% (defined as treatment two in the procedure document). Effluent samples for self - monitoring purposes must be obtained during representative effluent discharge below all waste treatment. The tests will be performed during the months of January, April, July and October. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGE6C. Additionally, DWQ Form AT-2 (original) is to be sent to the following address: Attention: North Carolina Division of Water Quality Environmental Sciences Section 1621 Mail Service Center Raleigh, North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Section at the address cited above. Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. Should any test data from either these monitoring requirements or tests performed by the North Carolina Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. Permit NCO086819 A.( 5.1 EFFLUENT POLLUTANT SCAN The Permittee shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed below. The analytical methods shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive to determine whether parameters are present in concentrations greater than applicable standards and criteria. Sampling dates shall represent seasonal variation. Unless otherwise indicated, metals shall be analyzed as "total recoverable." Ammonia (as N) Chlorine (total residual, TRC) Dissolved oxygen Nitrate/Nitrite Kjeldahl nitrogen Oil and grease Phosphorus Total dissolved solids Hardness Antimony Arsenic Beryllium Cadmium Chromium Copper Lead Mercury (EPA Method 1631E) Nickel Selenium Silver Thallium Zinc Cyanide Total phenolic compounds Volatile organic compounds: Acrolein Acrylonitrile Benzene Bromoform Carbon tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane 2-chloroethylvinyl ether Chloroform D ichlorobrom omethane 1, 1 -dichloroethane 1,2-dichloroethane Trans-1,2-dichloroethylene 1,1-dichloroethylene 1,2-dichloropropane 1,3-dichloropropylene Ethylbenzene Methyl bromide Methyl chloride Methylene chloride 1,1,2,2-tetrachloroethane Tetrachloroethylene Toluene 1, 1, 1 -trichloroethane 1,1, 2-trichloroethane Trichloroethylene Vinyl chloride Acid -extractable comyouncts: P-chloro-m-cresol 2-chlorophenol 2,4-dichlorophenol 2,4-dimethylphenol 4,6-dinitro-o-cresol 2,4-dinitrophenol 2-nitrophenol 4-nitrophenol Pentachlorophenol Phenol 2,4,6-trichlorophenol Base -neutral compounds: Acenaphthene Acenaphthylene Anthracene Benzidine Benzo(a)anthracene Benzo(a)pyrene 3,4 benzofluoranthene Benzo(ghi)perylene Benzo(k)fluoranthene Bis (2-chloroethoxy) methane Bis (2-chloroethyl) ether Bis (2-chloroisopropyl) ether Bis (2-ethylhexyl) phthalate 4-bromophenyl phenyl ether Butyl benzyl phthalate 2-chloronaphthalene 4-chlorophenyl phenyl ether Chrysene Di-n-butyl phthalate Di-n-octyl phthalate Dibenzo(a,h)anthracene 1,2-dichlorobenzene 1,3-dichlorobenzene 1,4-dichlorobenzene 3,3-dichlorobenzidine Diethyl phthalate Dimethyl phthalate 2,4-dinitrotoluene 2,6-dinitrotoluene 1, 2-diphenylhydrazine Fluoranthene Fluorene Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclo-p entadien e Hexachloroethane Indeno(1,2,3-cd)pyrene Isophorone Naphthalene Nitrobenzene N-nitrosodi-n-propylam ine N-nitrosodimethylamine N-nitrosodiph enylamine Phenanthrene Pyrene 1, 2,4-trichlorobenzene Reporting. The effluent pollutant scan shall be performed once/year during 2013, 2014, and 2015, and test results shall be reported to the Division on DWQ Form -A MR-PPA1 or in a form approved by the Director by December 3181 of each designated sampling year. The report shall be submitted to the following address: NC DENR / DWQ / Central Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617. 7 ROYCoOPLIZ 4 i:ir ,010 IAEL S. REGAN LINDA CULPEPPER J NORTH CAROLINA Environmental Quality FINDING OF NO SIGNIFICANT IMPACT (FONSI� Northeast Brunswick Wastewater Treatment Plant and Transmission Main Expansion Project Brunswick, North Carolina The North Carolina Environmental Policy Act (G.S. §113A) (NCEPA) requires the Division of Water Resources (NCDWR) to determine whether a proposed major agency action will significantly affect the environment. Based on the NCEPA criteria, it has been concluded that the proposed Northeast Brunswick Wastewater Treatment Plan and Transmission Main Expansion Project meets the requirements of the NCEPA as a major action and as a result an Environmental Assessment (EA) has been submitted to the NCDWR. The EA has been reviewed by North Carolina Division of Environmental Quality (NCDEQ) programs to determine potential effects from the proposed project and to ensure that the project meets all applicable rules and regulations. In an effort to accommodate projected wastewater flows from population increases within the service area, the Brunswick County Public Utilities is proposing to expand the current treatment capacity at its Northeast Brunswick Wastewater Treatment Plant from an existing 2.475 million gallons per day (MGD) to 4.975 MGD. Additionally, the proposed project includes the installation of an additional 18,000 linear feet (LF) of 16-inch force main and 11,000 LF of 18-inch force main. The purpose of the project is to provide safe and dependable wastewater treatment and discharge within the service area. The project is needed because anticipated growth will cause the demand for wastewater treatment to exceed the treatment capacity within the service area by the year 2021. As shown in the EA, Figure 4, the proposed action will take in the northeast portion of Brunswick County. In order to determine whether the proposed Northeast Brunswick Wastewater Treatment Plant and Transmission Main Expansion Project will cause significant environmental impacts, an environmental assessment has been prepared, The environmental assessment is attached. It contains detailed information on the key issues, including a detailed description of the proposed project, and probable environmental impacts with proposed mitigations. The EA considered seven alternatives: • No Action, ■ Connection to Existing WWTP, • Treatment at the Northeast Brunswick WWTP and Disposal through Spray Irrigation, • Treatment at the Northeast Brunswick WWTP and Disposal through High Rate Infiltration, • Treatment at the Northeast Brunswick WWTP and Reclaimed Water Disposal at Large Developments, ��� Noi lh C.urGn., Depai trnciil of Gig-unnn=cntal Quahh� - Dici�n�m of bVHre� t ,I? North SAIk11w Sht?ei 1 lot M<nl'ie�vnr Centel Releigh. North C.ctr0,in,i �7t�iei Ihll Treatment at the Northeast Brunswick WWTP with Combination of Disposal by High Rate Infiltration and Spray Irrigation, and Treatment at the Northeast Brunswick WWTP and Disposal by Surface Discharge (Preferred Alternative). Impacts to topography will be minimal and any disturbed areas will be regraded to natural elevations and reseeded. Any impacts to land use will comply with all applicable land use requirements. Wetland impacts will be minimal. Potential impacts to prime or unique agricultural lands will be mitigated through jurisdictional regulations. Disturbed forested areas will be reseeded. Impacts to shellfish and fish habitats will be minimized through perpendicular crossings of force mains and proper use of sediment and erosion control measures. Impacts to air quality, noise, and water resources will be temporary in nature and associated with construction activities that will be mitigated through proper maintenance of equipment and by following all applicable ordinances. No toxic substances are expected to be generated as a result of associated activities but will be properly disposed of should this occur. There will be no anticipated impacts to soils, public lands and scenic and recreational areas, or areas of archeological or historical value. Due to mitigation activities none of the above impacts are found to be significant. Thus, it has been concluded that the proposed Northeast Brunswick Wastewater Treatment Plant and Transmission Main Expansion Project will not have a significant adverse effect on the quality of the environment. No environmental impact statement (EIS) will be prepared and this FONSI completes the environmental review record. The FONSI and EA shall be available for inspection and comment for 30 days at the State Clearinghouse. Summary of FONSI for publication in the Environmental Bulletin: After completion of an environmental assessment under G.S. 113A, a FONSI has been made in the case of the proposed Northeast Brunswick Wastewater Treatment Plant and Transmission Main Expansion Project. Information supporting the need for the proposed project was reviewed, along with relative impacts, other alternative approaches, and mitigating measures. Linda Culpepper (Date) Director, Division of Water Resources One (1) full size set of signed and sealed final plans have been submitted for review under separate cover. A digital copy of the plans are included on a supplementary CD included with this Submittal. One (1) complete set of signed and sealed final Specifications have been submitted for review under separate cover. The Specifications submittal consists of two (2) volumes. A digital copy of the Specifications is included on a supplementary CD included with this Submittal. SEQUENCE OF CONSTRUCTION IS LOCATED IN PARAGRAPH 1.5 OF THIS SECTION SECTION 01 10 00 —SUMMARY PART 1 -GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section includes: 1. Project information 2. Work covered by Contract Documents 3. Access to site 4. Coordination with occupants 5. Work restrictions 6. Specification and Drawing conventions B. Division 01 Section "Temporary Facilities and Controls" for limitations and procedures governing temporary use of Owner's facilities. 1.3 PROJECT INFORMATION A. Project Identification: Northeast Brunswick Regional Water Reclamation Facility 2.5 MGD Facility Expansion 1. Project Location: Brunswick County, NC B. Owner: Brunswick County C. Consultant: The Owner has retained the following design professionals who have prepared designated portions of the Contract Documents: 1. McKim & Creed, Inc. 243 N. Front Street, Wilmington, NC 28401 1.4 WORK COVERED BY CONTRACT DOCUMENTS A. The Work of the Project is defined by the Contract Documents and consists of the following: 1. The project consists of the construction of a 2.5 MGD expansion of the existing Northeast Brunswick Water Reclamation Facility. 2. Constructed facilities include the following: NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION 01 10 00 -1 00069-0047 JUNE 2019 SEQUENCE OF CONSTRUCTION IS LOCATED IN PARAGRAPH 1.5 OF THIS SECTION BASE BID a. Site grading and access improvements. b. Site process piping and electrical improvements. C. One (1) headworks structure to include three (3) rotary drum screens, one (1) headcell grit removal system, one (1) grit washing system, one (1) grit pump and one (1) odor control system. d. One (1) EQ pump station equipped with three (3) submersible solids handling pumps and force main e. One (1) headworks/EQ Pump Station odor control system and ducting. f. One (1) EQ storage tank equipped with a jet aeration/mixing system (two (2) blowers, two (2) jet motive pumps, jet header) and all associated controls. g. Installation and commissioning of one (1) additional blower package and one (1) additional jet motive pump at the existing EQ storage tank. h. Decommissioning of existing headworks and EQ pump station structure i. Two (2) oxidation ditches equipped with an anaerobic selector, influent and effluent control weirs, submersible mixers, jet aeration system (jet heaters, blowers, and jet motive pumps), instrumentation and controls. j. One (1) MLSS splitter box structure k. Two (2) 65' diameter secondary clarifiers equipped with solids scrapping mechanism, scum box, suction header, and drive assembly and flow distribution box. Three (3) RASNVAS pumps with associated controls for flow control and splitting. M. One (1) NaOH duplex chemical feed pump skid and controls. n. One (1) scum pump station. o. Two (2) tertiary disk filters. P. UV disinfection system consisting of UV structure and four (4) banks of UV lamps, level control weirs, instrumentation and controls. q. One (1) cascade aeration system. NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION 01 10 00 - 2 00069-0047 JUNE 2019 SEQUENCE OF CONSTRUCTION IS LOCATED 11VPARAGRAPII 1.5 Of- T111.S SF_CTION One (1) effluent pump station equipped with three (3) submersible solids handling pumps and controls and two (2) vertical turbine NPW booster pumps, two (2) hydropneumatics tanks and controls. Pre — ATAD sludge thickening facility including Two (2) rotary drum thickener, two (2) flocculator tanks, polymer feed system and thickened WAS storage facility. One (1) Pre-ATAD pump station including two (2) ATAD Feed pumps and two (2) ATAD Discharge Pumps. u ATAD system including two (2) ATAD Reactors with two (2) ATAD Transfer Pumps and eight (8) submersible mixers. v. Post — ATAD holding facility including jet aeration header, one (1) blower and one (1) transfer solids handling pump. W. One (1) ATAD odor control system and ducting. X. One (1) truck loading station. Y. One (1) blower/mechanical building. Z. One (1) electrical and controls building. aa. PLC based instrumentations and controls package for monitoring and operating treatment facilities. bb. One (1) system transformer and generator. ADD ALTERNATE NO. 1 cc. Demolish existing headworks structure and decommission existing EQ pump station B. Type of Contract Project will be constructed under a single prime contract. 1.5 WORK SEQUENCE A. General: All Work shall be conducted in an orderly manner by the Contractor. The Contractor shall employ sufficient number of construction crews such that each area of construction as outlined above and within the Contract Documents shall be completed within the allocated Construction Timeline. B. In general, the majority of Work under this Contract includes construction, testing and startup of a new parallel treatment works at the NE Brunswick Regional WWTP. The Contractor shall be responsible for coordinating construction of the NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION 01 10 00 - 3 00069-0047 JUNE 2019 SEQUENCE OF CONMUCTION IS LOCATED 11y EI RAGRAPlt 1.5 OF MISSECTION parallel treatment works consisting of the following components with all pre -startup testing and performance checks performed prior to final acceptance. 1. Headworks 2. EQ Pump Station 3. EQ Tank 4. Anaerobic tank 5. Oxidation ditches 6. RASNVAS Pump Station 7. MLSS splitter box 8. Secondary clarifiers 9. Scum Pump Station 10. Tertiary filters 11. LIV system 12. Cascade aeration 13. Effluent pump station 14. ATAD Transfer Pumps 15. ATAD Reactors 16. Post ATAD Transfer Pumps 17. Post ATAD Storage Tank 18. Truck Loading Pumps 19. Chemical Feed Pumps C The Contractor shall prepare and submit for review and approval a Startup Plan which incorporates the requirements outlined below for the sequence of construction and startup requirements outlined within the Contract Documents and as required by the equipment manufacturers. The Startup Plan at a minimum shall include a detailed startup schedule, descriptions of preliminary requirements to be completed prior to startup of each system, functional testing descriptions, operational testing descriptions, performance testing descriptions, coordination with adjacent treatment units and operator training. D. Headworks, EQ Pump Station, EQ Basin Tie -In and Startup 1. Critical path for construction shall consist of construction and startup of the new electrical building and MCCs in addition to running all the necessary duct banks/conduits/conductors to provide power to the additional equipment to be installed as part of the new headworks, EQ PS and EQ tank improvements. 2. Construction of the new headworks, EQ PS and EQ tank should proceed in parallel to construction of the electrical building to coordinate tie-in of the influent force main to the new treatment system to keep the existing NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION 01 10 00 - 4 00069-0047 J U N E 2019 SEQUENCE OF CONSTRUCTION IS LOCATED IN PARAGRAPH 1.5 OF THIS SECTION treatment plant in full operation through construction and final acceptance of the new treatment train. 3. Contractor shall commission and test all Headworks, EQ PS and EQ Tank equipment with NPW prior to introducing wastewater flow through the system. Testing shall include confirming water tightness of all piping, isolation valves and gates; satisfactory operation of all equipment and pumps; and satisfactory operation of all control systems. 4. Currently all flow enters the existing treatment facility through a 16" FM tying into the existing headworks structure. This existing 16" FM shall be tied into the new FM going to the new headworks structure utilizing a tapping sleeve as indicated on the Contract Drawings. Once tie-in has been completed and the headworks equipment and EQ pump station have passed functional tests using NPW to the satisfaction of the Engineer, the Contractor shall coordinate with the Owner to begin diverting flow from the influent FM to the new headworks structure and downstream EQ pump station. 5. It should be noted that the existing drain line coming off the existing EQ tank was hydraulically designed to only pass peak flows which are shaved at the existing headworks and drain by gravity back to the anaerobic selector through the existing 16" drain line. Once the new Headworks is placed into service, all flow introduced to the new headworks will be conveyed to the existing EQ tank and will drain through the existing 16" drain line to the anaerobic selector at the existing plant. This line is not sized to sufficiently pass the full flow of the facility and therefore will require that the Contractor coordinate with operating staff to split flow between the existing headworks and new headworks during periods of high flow and when EQ storage is not adequate to control the release of flow. 6. Acceptance testing of the new headworks and EQ pump station shall be performed and monitored for a minimum of 14 days to allow for system burn in and confirm equipment reliability/stable performance under an operating load prior to any Work to proceed at the existing headworks structure or existing EQ tank drain line to allow placing the existing Headworks back into service if needed. In the event issues arise during acceptance testing with any of the installed equipment or systems, the Contractor shall make all necessary improvements to the system to correct issues. Once issues are corrected and accepted by the Engineer, the Acceptance test shall be restarted and shall run for 14 days. Once system has successfully operated for a complete 14-day test period, the Engineer will issue acceptance of the testing results and Work may proceed on the existing EQ tank drain line tie-in. Work on the existing headworks structure shall only proceed after commissioning of the new Headworks, EQ PS and tie-in of the new EQ Tank drain line has occurred to ensure adequate hydraulic capacity between the existing EQ tank and existing anaerobic selector. 7. All flow shall be diverted to the existing EQ tank after commissioning of the new headworks structure. As part of the overall improvements, the new discharge line coming out of the EQ tank farm to the existing anaerobic selector shall be constructed and tested prior to final tie-in at the locations NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION 01 10 00 - 5 00069-0047 JUNE 2019 SEQUENCE OF CONSTR[ C"ON IS LOCATED IN PARAGRAPH 1.5 OF THIS SECTION indicated on the Contract Drawings. After the new line has passed testing requirements and final tie-in is required, the Contractor shall coordinate with the Owner to bring down level within the existing EQ tank as far as possible to maximize available storage within the tank. During low flow, it is estimated that the available storage will provide approximately 6 hours of storage. In the event Work cannot be adequately performed during this window, the Contractor shall be responsible for providing additional storage by commissioning the new EQ tank prior to proceeding with tie-in of the new drain line. The Contractor shall provide a standby bypass pumping system to pump flow from the EQ pump station wetwell to the anaerobic selector at the existing oxidation ditch system, as a backup system, in the event the existing FM cannot be placed back into service and temporary utilities are required. Once an acceptable Work plan has been approved by the Engineer, and during a low flow period and after confirmation rainfall is not forecasted within the next 48 hours, flow out of the existing EQ tank shall be stopped utilizing the existing 16" valve shown on the Contract Drawings. The valve shall be sufficiently exercised and checked for functionality prior to beginning with Work. The Contractor shall then coordinate final tie-in of the new drain line with the existing 16" underdrain coming out of the EQ tank and tie-in of the new drain line at the existing anaerobic selector. Once tie-in is completed and tested, flow may be released from the EQ tank by opening the 16" yard valve isolating the tank drain line. Tie-ins shall only be performed under the supervision of the Owner's representative. E. Oxidation Ditch System Startup Startup of the Oxidation Ditch System shall include the following operations: a. Functional Testing: Once dry testing of the various equipment of the Oxidation Ditch (OD) System has ended up in a satisfactory manner, Functional Testing of the OD System, to confirm equipment operation and basic performance as detailed within each specific equipment specification, shall be performed. Functional testing shall be performed utilizing NPW over a period of a minimum of one (1) week to start up all equipment and to check all control systems, prior to introducing any wastewater flows and seeding with RASMAS. The Equipment Manufacturer's representative shall perform testing and issue a written report detailing testing performed and equipment functionality. b. Operational Testing: Upon successful completion of the Functional Testing, the Contractor shall remove all NPW from the OD System and coordinate with the Owner to seed the Oxidation ditch system with RAS or WAS from the existing treatment facility and low flow influent wastewater from the EQ tank farm to start acclimating the biological system. Operational testing shall be performed so long as it will take the biological system to treat the incoming wastewater flow to meet the plant effluent permit requirements. Adjustment shall be made to controls systems and equipment to meet design NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION 01 10 00 - 6 00069-0047 JUNE 2019 SEQUENCE OF CONSTRUCTION IS LOCATED IN PARAGRAPH 1.5 OF THIS SECTION requirements as outlined within the Contract Documents and the equipment manufacturers' recommendations. C. Performance Testing: Upon successful completion of Operational Testing, Performance testing shall occur for a minimum of 30 days to allow the biological treatment process to reach steady state operation. In the event system upset or equipment malfunctions occur requiring interruption of the treatment process, all adjustment/repairs shall be made by the Contractor and the performance test shall be restarted. The performance testing shall only be accepted once the secondary treatment process has operated for a minimum of 30 days without interruption due to equipment and/or control malfunction, and acceptable effluent quality has been achieved. d. Performance testing of the Secondary Treatment process shall be performed as a whole, with the anaerobic selector, oxidation ditches, secondary clarifiers, RAS/WAS pumps and scum pump station. However, it is recommended that the Contractor coordinate startup of the tertiary disc filters and UV system to coincide with the testing of the secondary treatment process to expedite startup time of the facility. However, in the event the tertiary treatment equipment is not ready for functional testing, the Contractor may direct secondary clarifier effluent to the bypass at the tertiary disk filters to drain back via the plant gravity sewer system and into the EQ pump station for disposal. The Contractor shall provide inflatable plugs for the inlet of the disc filter header to minimize solids accumulation in the disc assemblies during bypass operation. Effluent shall not leave the secondary treatment process to the post clarifier's unit processes until a few days prior to the beginning of the Performance Testing. e. The Contractor shall be responsible for collecting required samples and providing lab services to document system loading and treatment performance as outlined within the final startup plan. If the samples analysis data collected during the Performance Testing meet the plant's designed operation data and effluent permit requirements, final acceptance by the Engineer shall occur. F. Tertiary Filter System, UV Disinfection and Effluent Pump Station Equipment The Contractor shall be responsible for coordinating with equipment suppliers to perform initial functional testing as outlined within the respective equipment Specification sections of this manual and as required by the equipment manufacturers. All mechanical and electrical equipment and controls systems shall be tested in dry conditions to confirm systems function as intended for reliable operation and as outlined within the Contract Documents. In the event equipment does not function as intended, the Contractor shall make all necessary effort to bring equipment into compliance. 2. Functional testing of equipment shall be performed utilizing NPW to verify equipment and controls operations under hydraulic loading to verify control NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION 01 10 00 - 7 00069-0047 JUNE 2019 SE-OVE•NCE OF CONSTRUCTION IS LOCATED IN PARAGRAPH 1.5 OF THIS SECTION systems performed as intended by design and as anticipated during normal operation under effluent flow conditions. In the event the system does not function as required, the Contractor shall make all necessary improvements to ensure the equipment performed adequately prior to introducing secondary effluent. 3 Prior to introducing clarified secondary effluent to the tertiary filter system, the secondary clarified effluent shall have achieved acceptable performance (TSS < 20 mg/L) for the secondary treatment process as outlined above and meet the design loading conditions required for the tertiary filtration system. In addition to TSS, UV transmittance of the clarified effluent shall be measured to ensure the system effluent meets UV transmittance requirements prior to introducing to the UV system. The Contractor shall provide bypass pumping from the effluent pump station utilizing a bypass pumping system to the EQ Pump Station until acceptance of all plant performance testing. Bypass pumping shall be performed for a minimum of 14 days to allow for evaluation of the performance of tertiary filters and UV disinfection equipment. 4 Once all preliminary operational testing has been completed and approved by the Engineer, clarified effluent may be introduced to the tertiary filters, UV system and effluent pump station to evaluate performance of the equipment. During initial operational startup of the tertiary treatment equipment, performance of equipment shall be regularly monitored with sampling collected and analyzed by the Contractor as outlined within the approved startup plan. All tertiary effluent shall be bypass pumped back to the EQ pump station until stable performance meeting discharge requirements of the tertiary filters and UV disinfection system have been achieved over a continuous 14-day period. Once acceptable performance has been achieved, the Contractor shall coordinate with the Owner to begin discharge of treated effluent via the effluent pump station. G. ATAD System The Contractor shall be responsible for coordinating with equipment suppliers to perform initial functional testing as outlined within the respective equipment Specification sections of this manual and as required by the equipment manufacturers. All mechanical and electrical equipment and controls systems shall be tested in dry conditions to confirm systems function as intended for reliable operation and as outlined within the Contract Documents. In the event equipment does not function as intended, the Contractor shall make all necessary effort to bring equipment into compliance. 2. Functional testing of equipment shall be performed utilizing NPW to verify equipment and controls operations under hydraulic loading to verify control systems performed as intended by design and as anticipated during normal operation under normal flow conditions. In the event the system does not function as required, the Contractor shall make all necessary improvements to ensure the equipment performs adequately prior to in NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION 01 10 00 - 8 00069-0047 JUNE 2019 SEQUENCE- OF CONSTRUCTION IS LOCATED IN PARAGRAPH 1.5 OF THIS SECTION 1.6 WORK BY OWNER A. General: Cooperate fully with Owner so Work may be carried out smoothly, without interfering with or delaying Work under this Contract or any work by Owner. Coordinate the Work of this Contract with any work performed by Owner. 1.7 ACCESS TO SITE A General: Contractor shall have full use of Project site for construction operations during construction period. Contractor's use of Project site is limited only by Owner's right to perform work or to retain other contractors on portions of the Project. B. Use of Site: Limit use of Project site to construction limits indicated. Do not disturb portions of Project site beyond areas in which the Work is indicated. 1 Limits: Confine construction operations to within construction limits unless approved by the Engineer. 2. Driveways, Walkways and Entrances: Keep driveways and entrances serving premises clear and available to Owner, Owner's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials. a. Schedule deliveries to minimize use of driveways and entrances by construction operations. b Schedule deliveries to minimize space and time requirements for storage of materials and equipment on -site. C. Any damage by the Contractor to the paved WWTP access road must be repaired and/or replaced by Contractor to original grade and condition. 1.8 COORDINATION WITH OCCUPANTS A. Full Owner Occupancy: Owner will occupy adjacent sites during entire construction period. Cooperate with Owner during construction operations to minimize conflicts and facilitate Owner usage. Perform the Work so as not to interfere with Owner's day-to-day operations. I Maintain access to existing facilities. Do not close or obstruct occupied or used facilities without written permission from Owner and approval of authorities having jurisdiction. 2. Notify the Owner not less than 48 hours in advance of activities that will affect Owner's operations. B. Owner Limited Occupancy of Completed Areas of Construction: Owner reserves the right to occupy and to place and install equipment in completed portions of the Work, prior to Substantial Completion of the Work, provided such occupancy does NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION 01 10 00 - 9 00069-0047 JUNE 2019 SEQUENCE OF CONSTRUCTION IS LOCATED IN PARAGRAPH 1.5 OF THIS SECTION not interfere with completion of the Work. Such placement of equipment and limited occupancy shall not constitute acceptance of the total Work. 1. Engineer will prepare a Certificate of Substantial Completion for each specific portion of the Work to be occupied prior to Owner acceptance of the completed Work. 2. Obtain a Certificate of Occupancy from authorities having jurisdiction before limited Owner occupancy. 3. Before limited Owner occupancy, mechanical and electrical systems shall be fully operational, and required tests and inspections shall be successfully completed. On occupancy, Owner will operate and maintain mechanical and electrical systems serving occupied portions of Work. 4. On occupancy, Owner will assume responsibility for maintenance and custodial service for occupied portions of Work. 1.9 WORK RESTRICTIONS A. Work Restrictions, General: Comply with restrictions on construction operations. 1. Comply with limitations on use of public streets and other requirements of authorities having jurisdiction. 2. Comply with conditions and restrictions of NCDOT encroachment agreements, traffic control, and other permits obtained by the Owner including but not limited to erosion and sediment control, stormwater control, wetlands protection, and CAMA permits. B. On -Site Work Hours: Limit work to normal business working hours Monday through Friday or as approved by the Owner. Contractor shall be responsible for construction observation fees if outside normal approved 40-hour work week. C. Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Owner or others unless permitted under the following conditions and then only after providing temporary utility services according to requirements indicated: 1. Notify Owner not less than two (2) days in advance of proposed utility interruptions. 2. Obtain Owner's written permission before proceeding with utility interruptions. D. Existing Treatment Facilities: Do not interrupt or perform activities in a manner which will result in the detrimental impact on the performance of the existing treatment facility. 1. Notify Owner not less than one (1) week in advance of proposed activities which may impact the existing treatment facility's operational performance. NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION 01 10 00 - 10 00069-0047 JUNE 2019 .X [ICN QF CON.S'TRUCTION IS LOCATED IN PAX4GRAPH 1.5 OF 7.11IS SECTION 2 All activities which may impact the existing treatment facility's performance shall be coordinated with the Owner in writing prior to proceeding. E. Noise, Vibration, and Odors: Coordinate operations that may result in high levels of noise and vibration, odors, or other disruption to Owner occupancy with Owner. 1. Notify Owner not less than two (2) days in advance of proposed disruptive operations. 2. Obtain Owner's written permission before proceeding with disruptive operations. F Controlled Substances: Smoking is prohibited indoors in existing or temporary structures on site or other habitable structures on site 1.10 SPECIFICATION AND DRAWING CONVENTIONS A. Specification Content: The Specifications use certain conventions for the style of language and the intended meaning of certain terms, words, and phrases when used in particular situations. These conventions are as follows: 1 Imperative mood and streamlined language are generally used in the Specifications. The words "shall," "shall be," or "shall comply with," depending on the context, are implied where used within a sentence or phrase. a. The words "shall be" are included by inference where a colon (:) is used within sentences or phrases. 2 Specification requirements are to be performed by Contractor unless specifically stated otherwise. B. Division 01 General Requirements: Requirements of Sections in Division 01 apply to the Work of all Sections in the Specifications. Drawing Coordination: Requirements for materials and products identified on the Drawings and not further specified in the specifications are intended to describe a performance standard for function or materials of construction. PART 2 - PRODUCTS (NOT USED) PART 3 - EXECUTION 3.1 PRECEDENCE A. In resolving inconsistencies precedence shall be given in the following order; Agreement, Supplementary Conditions, General Conditions, Specifications — Division 01, Specifications — Divisions 02 — 46, and the construction drawings. END OF SECTION 01 10 00 NORTHEAST BRUNSWICK REGIONAL WRF 2.5 MGD FACILITY EXPANSION 01 10 00 - 11 00069-0047 JUNE 2019 Peaking Factor Calculations 2018 Flow Data Week Weekly Average Flow (MGDJ Weekly Peok Flow MGD) Peaking Factor 1-Jan 1.90 3.04 1.60 7-Jan 2.06 3.70 1.80 14-Jan 2.03 3.23 1.60 28-Jan 1.93 3.05 1.58 4-Feb 2.21 3.80 1.72 11-Feb 2.13 3.45 1.62 18-Feb 2.08 3.13 1.50 25-Feb 2.06 3.03 1.47 1-Mar 1.91 3.30 1.73 7-Mar 1.89 3.08 1.62 11-Mar 1.94 3.05 1.57 18-Mar 1.80 2.97 1,65 25-Mar 1.90 3.18 1.67 1-Apr 1.84 2.96 1.61 8-Apr 1.74 2.93 1.68 15-Apr 1.88 3.09 1.65 22-Apr 1.84 3.08 1.67 29-Apr 1.98 3.63 1.83 6-May 1.87 3.12 1.67 13-May 1.74 2.95 1.70 20-May 1.70 2.82 1.65 27-May 2.28 4.46 1.06 3-Jun 2.11 3.21 1.52 10-Jun 2.13 4.02 1.89 17-Jun 2.11 3.58 1.70 24-Jun 7.34 4.54 1.94 1-Jul 2.11 3.21 1.52 8-Jul 1.88 3.41 1.81 15-J u I 2.01 3.39 1.69 22-Jul 2.35 3.33 1.42 29-Jul 2.97 4.38 1.47 5-Aug 2.54 3.92 1.55 12-Aug 2.17 3.26 1.50 19-Aug 1.98 2.99 1.51 26-Aug 1.85 2.95 1.59 2-Sep 1.75 3.07 1.75 9-Sep i. nl 4.2a 2.47 16-Sep 3.14 4.71 1.50 23-Sep 2.42 3.62 1.50 30-Sep 2.18 3.23 1.48 7-Oct 2.05 3.37 1.64 14-Oct 1.94 3.27 1.68 21-Oct 1.92 3.30 1.72 28-Oct 1.93 3.21 1.66 4-Nov, 1.90 3.08 1.62 11-Nov 2.12 3.84 1.81 18-Nov 2.24 3.71 1.65 25-Nov 2.19 3.29 1.50 2-Dec 2.09 3.11 1.49 9-Dec 2.45 4.53 1.85 16-Dec 2.55 4.00 1.57 23-Dee 2.35 3.60 1.53 30-Dec 2.35 3.51 1.49 Avg 2.09 3.43 1.65 Max 3.14 4.71 2.47 Min 1.70 2.82 1.42 Estimated Design PF 2.26 Selected Design PF 2. SO Upstream of EQ Storage Selected Design PF 2.aD Downstream of EQ Storage Influent Pollutant Loading Calculations Design Influent Concentration ADF Conversion Design Influent Parameter (mg/L) (MGD) Factor Load (lb/day) Ammonia Nitrogen (NH3 - N) 30 2.5 8.34 626 Biochemical Oxygen Demand (BODS) 325 2.5 8.34 6,776 TKN 45 2.5 8.34 938 Total Phosphorus 7 2.5 8.34 146 Total Suspended Solids (TSS) 350 2.5 8.34 7,298 .•`�11N CAROB''•, 5E • 046998 - A. , �r„l,,,,,,,, Design Effluent Calculations KRUGER BIO-DENIPHO Process Calculation (NE Brunswick, NC) The following calculations are considered confidential and are intended for review only. This document is not to be turned over to any third party without prior approval by I. Kruger, Inc. The purpose of the following calculations are to demonstrate that the proposed design for the 2.5 MGD treatment system is capable of meeting the effluent requirements given the influent characteristic shown below. Wastewater Character Average daily flow, MGD Peak flow, MGD BOD5, mg/L CBOD5, mg/L (winter/summer) TSS, mg/L TKN, mg/L NH3-N, mg/L (winter/summer) TP, mg/L Wastewater temperature (min./max.), °C Elevation, ft (AMSL) Influent 2.50 6.25 325 350 45 7 14/22 100^ Effluent 30 10/5 10 2.0/1.0 The BIO-DENIPHO Process performs biological nitrogen removal without internal recycle of nitrates to separate anoxic tanks. The sizing of the oxidation ditches is based on providing an adequate oxic sludge age (Solids Retention Time, SRT) to ensure complete nitrification at the minimum temperature. Additional volume is then incorporated into the ditch to account for denitrification at the minimum temperature. Depending upon the Engineer's preference, State Regulations, or final effluent quality, the final treatment volume may be increased to provide excess capacity. SRT Nitrification is typically the limiting step in the nitrogen removal process due to the slow growth rate of nitrifiers. Therefore, a sufficient SRT must be established in order to retain an adequate population of these organisms. The theoretical minimum SRT required for nitrification to be maintained is equal to the inverse of the net effective growth rate (Un). SRT = 1/an Where Un = u — b 06/21 /2019 VEOLIA WATER Solutions & Technologies KRUGER u�, = net specific growth rate of nitrifiers, d-' b = endogenous decay coefficient for nitrifiers, d-' These nitrifier parameters can be found in a variety of published literature (WEF MOP No. 8, Vol. II, 1991; EPA Nitrogen Control Manual, EPA/625/R-93/010, 1993). For nitrifiers, the decay term is regarded as negligible. The 1993 EPA Nitrogen Control Manual offers the following equation (Eq. 3-14) as an acceptable equation for design. un= 0.47e009s(T-15) Where T is the MLSS temperature in °C Therefore at 14 °C, u,, = 0.43 day' or SRT = 2.3 days Applying a safety factor of —3.5 to the SRT, gives 8.0 days. Nitrification Volume The volume required for nitrification can then be calculated based on the following equation. Where: VN _ (Y)(SRT)(BODin — BODe f,)Qin (MLSS) VN = Volume required for nitrification. Y = 0.90 SRT = 8 days BOD;,,f = 325 mg/I BODefr = 5 mg/1 Q;,,r = 2.5 MGD MLSS = 3,500 mg/1 Using these data, the minimum estimated volume for nitrification VN = 1.65MG. Denitrification Volume The quantity of nitrate-N to be denitrified will depend on the quantity of nitrogen removed from the system in the WAS due to biological synthesis and the amount lost in the effluent. In order to determine the volume required for denitrification, a nitrogen balance is performed on the system. 06/21 /20 l 9 2 VEOLIA WATER KRUGER The nitrogen balance will include the following assumptions; influent organic nitrogen will be hydrolyzed to ammonia nitrogen, 6.0 % of the solids in the Waste Activated Sludge (WAS) will consist of nitrogen removed as ammonia for cell maintenance and synthesis of additional organisms (cell growth), and a target oxidation ditch effluent TN of 6 mg/L. The target of 6 mg/L TN is what is estimated to be realistic to remove by the BOD in the incoming influent. The NE Brunswick WWTP has incorporated automatic dissolved oxygen control to maintain a residual D.O. level about 2.0 mg/1 during the oxic phase, which will allow simultaneous denitrification occurring within the oxidation ditches. Based on our experience on the BIO-DENIPHO process with D.O. control, we have assumed 7% nitrate removal due to simultaneous denitrification. Thus, the amount of NO3-N that must be denitrified in anoxic phase is: Ndenit = Nit, — N W As- Neff,ditch —Nsdn The total quantity of nitrogen (TKN) entering the system is: Nit, = (45 mg/1)(2.5 MGD)(8.34) = 938 lbs/d The target effluent nitrogen (TN) leaving the oxidation ditches is: Neff = (6 mg/1)(2.5 MGD)(8.34) = 125 lbs/d The WAS has been estimated using a Yield Coefficient of 0.9 or approximately 6,100 lbs /d, so: Nwns = (6%)(6,100 lbs/day) = 366 lbs/d Nitrate (total) to be denitrified: Ndenit, total = Nit, — NwAs- Neff = 447 lbs/d Nitrogen removal due to simultaneous denitrification: N4, =7 % Ndenit = 31 lbs/d The amount of NO3-N that must be denitrified in anoxic phase is: NAN= 938 lbs/d — 366 lbs/d — 125 lbs/d — 31 lbs/d = 416 Through years of experience designing and operating oxidation ditch plants, Kruger has amassed an abundance of data pertaining to wastewater treatment, along with the Technical University of Denmark. This data is referenced in Figure 15.10 the 1992 WEF MOP-8. Based on this data for a minimum temperature of 14°C, the denitrification rate is 2.29 lbs NO3/1000 lbs MLVSS•hr, which is typical for where the carbon source is raw wastewater. Based on a total quantity of 416 Ibs/d of nitrate to be reduced, a 75% volatile solids content, and a denitrification rate of 2.29 lbs NO3/1000 06/21 /2019 3 VEOL{A WATER —unons n rernnomgies KRUGER lbs MLVSS•hr, the amount of MLSS required for denitrification is 11,600 lbs MLSS with an applied safety factor of 1.1. NO3 MLVSS 2.29lbsNO3 24hr MLSS dN = 1.1(416 lbs d )/((0.75 MLSS )(10001bMLVSS' hr)( d ) lbs MLSS = 11,100 Assuming an MLSS concentration of 3,500 mg/l, the additional volume required is VdN = (11,100 Ibs MLSS)/(3500m9 * 8.34m IbG) 9 VdN = 0.38 MG Anaerobic Selector and Biological Phosphorous Removal The proliferation of Phosphorus Accumulating Organisms (PAOs) is enhanced by establishing anaerobic conditions in the selector followed by aerobic conditions in the aeration tanks. Overall performance is also governed by the amount of readily biodegradable COD (rbCOD) in the influent, in particular the amount of Volatile Fatty Acids (VFAs). The Block and Hong selector design creates the necessary to aid in fermentation of rbCOD to VFA. The Block and Hong selector is designed in three stages. The I" stage receives Return Sludge only allowing for removal of residual nitrate by endogenous den itrification. The 2" d stage blends the influent with the RAS from the 1st stage to create anaerobic conditions allowing the PAOs to begin absorption of VFA and release of stored polyphosphate. The 3`d stage provides additional time for fermentation of rbCOD to VFA for utilization by the PAOs. The selector is sized for the future Phase II influent flow of 3.75 MGD when a 3`d equal size ditch is added. The overall volume of the selector, Van , provides a nominal HRT of 2 hrs at 2.5 MGD and 1.3 hrs at 3.75 MGD. van = 0.21 MG For design purposes, it is assumed that the P content in the WAS will be 2% by weight. Accordingly, the TP in the effluent would be: TPeff = TPinf - TPwAs TPeff = 7 mg/L — [(0.02 IbsP/1bWAS )(6,100 lbsWAS/day)] / [(8.34)(2.5 MGD)] TPeff � 1.1 mg/L (without Chemical Addition) 06/21 /2019 4 �VEOIIA WATER sowtions & iecnnoiogies KRUGER Total Volume and SRT The total system volume is VT= Van + VN + VdN VT= 0.21 MG+0.38 MG+ 1.65 MG VT= 2.19 MG The total SRT within the BIO-DENIPHO system would be calculated as the total MLSS mass divided by the sum of the WAS and the secondary effluent TSS ((209 lb/day based on 10 mg/L) Total MLSS Mass = 2.19 MG x 3500 mg/L MLSS x 8.34 = 63,900 lbs SRT = 63,900 lbs MLSS / (6,100 lbs WAS /day + 209 lbs eff TSS /day) Total SRT= 10.1 days BIO-DENIPHO Oxygen Re airement Determination The following values will be applied in the determination of the oxygen demand: 1.1 lbs oxygen per lb of BOD removed (L I lbs 02/lb BOD influent) • 4.6 lbs of oxygen per lb of ammonia subject to nitrification (4.6 lbs 02/lb NH3-N) M 2.85 lbs of oxygen recovered per lb of nitrate to be reduced within the BIO-DENIPHO reactors Documentation supporting these values can be found in Chapter 10 of Wastewater Engineering, Treatment, Disposal, and Reuse by Metcalf and Eddy, Inc., 1991, and the 1993 EPA Nitrogen Control Manual, Chapters 3 and 4, respectively. AOR Calculation :•� (325 mg/1)(8.34 lb/g)(2.5 MGD)(1.I lb 02/lb BOD) = 7,454 lbs 02/d TKN: (Ni, -NWAs)(4.6 lb 02/1bNH3-N) = 2,633 lbs 02/d NO3-N: (To calculate the denitriflcation credit) (Ni. -NWAs - Naf)(2.85 lb 02/lb NO3-N) = 447.25 lb/d x 2.85 lb 02/lb NO3-N =1,275 lbs 02/d 06/21/2019 5 GVEOLIA WATER KRUGER AOR: AOR = (BODox)+(TKN.,,)-(NO3-Nox) AOR = 7,454 lbs 02/d + 2,632 lb 02/d — 1,275 lb 02/d = 8,812 lbs 02/d = 367 lbs 02/h SOR Calculation Where: AOR (hour) A0T * [(—)/241 DS SOR/AORA = CSW20• oc [a" (#* Csaarfr- nc—DO)- (0..[T-2v])[ Csld20 9.08 Saturation at Standard Conditions (a) 0.8 Alpha (0) 1.024 Theta=Oxygen transfer coefficient T 20°C Wastewater temperature D, 1.19 Depth Correction Factor Csurer 9.06 Local Saturation Value for DO (R) 0.95 Beta The wastewater load is typically received according to a diurnal flow pattern resulting in organic and nitrogen loads that exceed the average load during limited periods of the day. Kruger recommends a peaking factor be in place in determining the design SOR that accounts for the diurnal characteristics of the influent wastewater. The peaking factor applied for NE Brunswick would be 1.5 at a DO of 1.0 mg/L. Units Average Peak Peaking factor 1.0 1.5 Total AOR Lbs 02/day 8,832 13,248 Total AOR Lbs 02/hr 368 552 DO mg/L 2.0 1.0 SOR/AOR 1.64 1.46 OT % 81 81 SOR Lbs 02/hr 745 996 SOR per ditch Lbs 02/hr 373 498 The airflow to be provided within the BIO-DENIPHO system will depend on the oxygen transfer efficiency of the selected jet aeration system (SOTE) and the depth of submergence of the jet aerators (D,,,b). The SOTE of the system is estimated, based on information provided by the jet 06/21/2019 6 VEOLIA WATER KRUGER aeration manufacturer, at 1.80%/ft. for average air flow and 1.50% for peak airflow. The depth for the jet aerators are 16' Where: Total SCFM Required = — SOR SOTS [(p* MaSS02* DiffD* ioo *60)*2] p 0.075 Density at Standard Air Temperature Mass02 0.232 Mass Fraction of 02 in air at Standard Conditions Units Average Peak Peaking factor 1.0 1.5 SOR per ditch lbs 02/hr 373 498 Diffuser depth Feet 16 16 SOTE % 1.80 1.50 Total Airflow SCFM 2,480 3,975 Airflow per Ditch SCFM 1,240 1,990 Blower Discharee Pressure For ditch projects of this size, it is standard to provide two duty blowers and one standby blower. At peak flow conditions two blowers need to provide about 2,000 SCFM each at a discharge pressure of 8.0 psi. The selected blower will provide 2,100 SCFM at differential pressure of 8.1 PSIG. The blower data sheet is attached. BIO-DENIPHa Mixing Pumping Requirement There will be two motive pumps per basin. Each pump will have a capacity of 3,995 gpm at a total pump head of 19 feet. The motive pump data sheet is attached 06/21 /2019 7 VEOLIA WATER Solutions & Technologies KRUGER Attachment Motive Pump Data Sheet 4 ►y l E N TA i R Customer Clearstream Pump Performance Datasheet Project name NC Jet Aeration Encompass 2 a - to 2 7 0 Item number 1 Size 1Y 57X1 Service Stages t Quantity .4 Based an carve number 12-570-1200-02AfN Rev 102716 Quote number ChwS roam NC Date hest saved 10,Jul 2018 4:52 PM Operating C ond'itions liquid Flow. rated : 3,995.0 USgpm Liquo type Water D,f!erenrial head : pressure ratea (requested) 21.OD ft Add•hdn3l Squld desorption - D,ferenbal head : pressure- rateo ?actual l 2128 ft $Wds diameter. max 0.00 in 3uetwn pressure. rated : max O.DD f 0 00 psi-g Safds concerti croon, by volume LOD % NPSH av3ilake, rated Ample Temperature- max : 68-00 deg F Fraclumey 60 Hz Fluid density. rated) may 1.ODD f 1.ODO SG Perfwmance Visoosty, rated 1.00 cP Speed. rated 890 rpm Vaoor pressure, rated 0 34 psi -a Impe4r diameter, rated 13-08 in Material Impeg-r d ameter, maximum 13.87 in Material selected Cast Iron Impe4r diameter, m;nimvn 12-00 in Pressure 03ta 1=ffidency 80-32 % M t mum mark ng pressure 16-94 psi g NPSH required , marpirt requ red 18,15)D DO ft Mar mum allowable worl;tng pressure 50-OD psi.g nq (imp. eye ffcw i r S limp. eye flow) 80 1135 Metric units Mae mum allawahle suenon pressure WA Mr forum Cononuous Stable Flow 563.3 USgpm Hy✓ostatrc test pressure 75.00 psi g Head, maximum, rated d,,arrver 39.14 ft Driver R Power Data (GMax density) Head nse to shulo f 86.39 % D n ter sizingspealicaton Maximum power Ftow. best eff poet : 3,606.0 USgpm Margin over speet5cat+on 0.00 Si Row ratio. rated (BE P r rarai (d beddie : max: Head : 11D.79 % 94-30 °� Service to for Power. hydr3ulic 1.OD : 21 18 hp ra Head ratio {rs3ed d e + max da) 72-58 % CgCh CWCn [ANStni] 6 6.7.20101 1-00 ! 1 OD 1 100 1.00 Pourer, rated power, maximum, rated diameter : 26.3? hp 26-52 hp Selection status Acceptable Minimum retdmmenden rndrar ratrg : 30-DO hp., 22-37 kW 32 L 24 W - MN*rttan CaraUnuous Stable Fltrw 54 � Mtu eeowetli, Bow Ptefarced apee:r;rty =up.m 1387k 4a 42 ilfflin 60 71) 31 75 79 30 82 � _ 24 t= ^' 79 la 12 8 0 30 NPSli U) 15 0- z a 0 Sao 1,000 1,500 2,OOO 2,500 3.000 3,500 4.000 4,500 5.000 5,500 6,000 Flow • USgpm 06/21 /2019 8 C)VEOLIA WATER Solutions & Technologies KRUGER Attachment Blower Data Sheet Md , . Customer: NE Brunswick, NC Design data: Operating mode: Gauge pressure Inlet pressure: 14.6 psia Inlet temperature: 100 OF Air Humidity: 50% ROTARY SCREW BLOWER Date: 03-19-2019 PACKAGE RECOMMENDATIONS Page: 'I Prepared by: K. Ballew Flow medium: Air Pressure differential: 8.1 psig Discharge pressure: 22.7 psia Technical data: Package type: Screw SFC Maximum pressure differential: 92 psig Package: FIBS 660 L Blower speed (60hz): 6200 rpm Blower: Sigma 13168 % of blower's maximum speed: 989'0 Drive motor: 100.0 hp Inlet flexible connector: None- Ambient intake Drive motor power: 460V 13 ( 60Hz Discharge flexible connector: Flanged- 8" ANSI Performance data: Min Frequency Design Point Max Frequency Frequency '18.0 Hz 60 Hz 60.0 Hz Speed 1860 rpm 6200 rpm 6200 rpm Inlet Flow Q'I ": 577 cfm 2334 cfm 2334 cfm Air flow Q I (standard) 527 scfm 2,134 scfm 2134 scfm standard conditions:14.7 psia, 68T, 36% RH Discharge temperature: 208 'F 196 OF 196'F Blower shaft power: 24.7 hp 89.4 hp 89.4 hp Package input power: 21 A kW 75.6 kW 75.6 kW Specific performance: 3.71 kW/'100-cfm 324 kW 100-cfm 3.24 kW/ 100-cfm Sound pressure level'": 74 dB(A) Sound power level': 92 dB(A) Estimated weight: 5470 Ib Dimensions (W x L x H) 76.0 x 88.0 x 75.0 inches 06/21/2019 9 Q VEOLIA WATER Solutions & Technologies Secondary Clarifier Calculations Clarifier Diameter = 65 ft Surface Area = 3,318 ft2 Weir Length = 204 ft Q = 1.25 MGD average flow through each clarifier Average Clarifier SLR = 377 gpd/ftz (400 — 700 gpd/ft2 recommended average loading rate per Metcalf and Eddy) Weir Loading Rate = 6,127 gpd/ft (<20,000 gpd/ft per Metcalf and Eddy) Q = 3.75 MGD * 2.0 = 7.50 MGD Peak Flow through Oxidation Ditch System Assume 2 of 3 future clarifiers online (Future peak flow condition) Q peak to each clarifier = 3.75 MGD Maximum Clarifier SLR = 1,130 gpd/ftz (1,000 —1,600 gpd/ft2 recommended approximate peak loading rate per Metcalf and Eddy) Maximum Weir Loading Rate = 18,382 gpd/ft (<20,000 gpd/ft per Metcalf and Eddy) Tertiary Solids Removal The tertiary filter system is design for a peak loading rate of 5.83 gpm/ftz and equipped with filter media with an effective filter rating of 10 µm. The filtration system has been designed to effectively remove effluent solids to measurable limits significantly lower than the design effluent loading condition of TSS < 10 mg/L. UV Disinfection System Performance The provided UV system has been design by Trojan Technologies Inc to achieve effluent standards of 25/100 mL fecal coliform based on a 30 day average with loading conditions consisting of: Peak Design Flow = 6.25 MGD with 1 Channel out of service (Design Flow is rated at 5 MGD for this Phase) UVT = 65% (minimum) TSS = 10 mg/L (maximum, grab sample) End of Lamp Life = 0.98 Fouling Factor = 0.95 Hydraulic Loading Calculations Tank New EQ Tank Anaerobic Selector Aerobic Phase Oxidation Ditches (Series Operation) Anoxic Phase Oxidation Dithces (Series Operation) Oxidation Ditch System Total (Series Operation Hydraulic Loading Calculations Volume (Rai) Flow (MGD) HRT hr Typical HRT (hr) 763,000 3.75 4.9 Variable 210,000 3.75 1.3 0.5 - 1.5 1,725,500 3.75 11.0 Variable 304,500 3.75 1.9 Variable 2,240,000 3.75 14.3 6 - 30 •�,� CAFiq�'', p 0 'vy' 2 5E 0468i9 V - V A A. ,5 Equipment Sizing Calculations �•.•''�C VA CARS Y SSi' SEAL 04699,8 p` �•�_ P a°6aa tlpH°Hq 0 M if .41 0ilaii�i Drum Screens are sized to handle flows coming into the plant to feed to the existing plant and the new plant including future expansion. This consists of the existing three (3) oxidation ditches rated for 0.825 MGD ADF and three (3) new oxidation ditches (two in this expansion and one in the future) rated for 1.25 MGD ADF. A peaking factor of 2.5 was used in designing screening equipment as calculated for equipment upstream of the EQ tank farm. ADF = 3*(0.825 MGD) + 3*(1.25 MGD) = 6.225 MGD Peak Flow = 2.5 * 6.225 MGD = 15.57 MGD Influent TSS = 200 — 400 mg/L (350 mg/L continuous) Minimum Screenings Capture Ratio (SCR) 66% The screening system consists a total of three screens (2 duty + 1 redundant). The shaftless screw conveyor will collect solids from the influent drum screens to be transported and deposited in a collection dumpster for disposal. Sizing of the conveyor was coordinated with the requirements of the screen manufacturer to meet anticipated loading rates based on screening removal rates. The conveyor shall have an inlet solids capacity of 250 ft3/hr. Solids are collected from dedicated inlets at each screen and discharged from a common discharge outlet. The Headcell unit will remove grit and particulate material from the influent wastewater prior to discharging from the headworks structure. Equipment has been sized and selected by the manufacturer to meet the anticipated range of flow conditions through the headworks structure. Peak flow will be rated for 15.57 MGD as calculated previously for anticipated peak flow through the headworks structure. ADF = 3*0.825 MGD + 3*1.25 MGD = 6.225 MGD PDF = 2.5 * 6.225 MGD = 15.57 MGD Grit removal has been sized based on the following gradation: % Passing Cumulative 75 1 106 150 1 212 1 300 1 425 1 600 1 1000 Southeast Regional 1.9 7.1 21.2 42.6 62.7 71.9 81.2 93.2 Physical Average Southeast 1.7 7.9 31.9 56.6 83.4 90.3 94.1 97.9 SES Average Regional Equipment has been sized based on the following requirements: Number of Units Size 1 9' diameter Number of Trays per Unit 12 763 ft2 14.2 m/ft2 95% removal of all grit (specific gravity 2.65) >_75 microns at minimum flow 95% removal of all grit (specific gravity 2.65) >_75 microns at average flow Surface Area/Unit Peak Loading Rate Performance Performance Performance 95% removal of all grit (specific gravity 2.65) >_125 microns at peak flow Minimum Flow Average Flow Peak Flow 1.5 MGD 6.225 MGD 15.57 MGD Headcell shall be provided with a bypass line around equipment in the event maintenance requiring taking the equipment out of service is necessary. It is anticipated that redundancy for grit removal equipment during the short term period needed for maintenance is not recommended as grit removal is not a process critical system affecting effluent quality. The washing/dewatering unit will receive grit slurry flow from the underflow of the Headcell unit via a grit pump. The grit pump is designed to deliver grit slurry flows at a rate of 300 gpm. The grit washing/dewatering unit is designed by the equipment manufacturer to meet the following design requirements: Number of Units 1 Design Flow/Unit 300 gpm Headloss 3" Performance 95% removal of all particles greater than 106 microns with a specific gravity >_2.65. Grit in the dumpster shall contain less than 5% volatile solids and greater than 85% total solids :50.5% Influent Solids Concentrations Influent Connection _ 6" flan ed pipe Effluent Connection 8" flanged pipe Or anics Discharge Connection 4" NPT pipe NPW Connection 1" NPT 2 No. Material of Construction 304SS Operation Continuous Up to 1.5 c /hr 12" 84" 38.5 ft2 Solids Capacity Au er Diameter Clarifier Diameter Min. Free Water Surface Area Grit washing/dewatering is not a process critical function which will impact effluent quality and performance. Therefore, a redundant unit has not been provided. In the event the grit wash ing/dewatering unit requires maintenance which will take the unit offline, maintenance will be coordinated to minimize downtime to return to service without significant interruption or flows to the Headcell unit will be bypassed via the available unit bypass line to the EQ Pump Station. The jet aeration system has been selected and sized to meet minimum mixing requirements and maintaining aerobic conditions within the EQ tank by the jet aeration system manufacturer based on the new EQ tank dimensions. It was estimated that the Jet Aeration system would consist of two (2) jet motive pumps and two (2) positive displacement aeration blowers. Each pump is rated at for the following: A. Jet Motive Liquid Pump Characteristics: 1. Quantity: Two (2) pumps 2. Flow: 3,200 GPM each 3. TDH: 22 ft. 4. Motor HP: 22 BHP Maximum Each blower is rated for the following: B. CONDITIONS OF SERVICE 1. APPLICATION: Influent equalization 2. NUMBER OF BLOWERS: two (2) blowers 3. SITE ELEVATION, FASL: 50 4. MAXIMUM INLET TEMPERATURE, IF: 100 5. MAXIMUM RELATIVE HUMIDITY, %: 68 6. SCFM ± 4 %: 660 7. DIFFERENTIAL PRESSURE, PSIG: 9.5 8. MOTOR SIZE:50 HP 9. SOUND LIMIT REQ. @ 1 METER IN FREE FIELD: 75 dBA The new Headworks and EQ Pump Station will be provided with an odor control system. The selected system utilizes a converting/polishing media. The media consists of a layer of diatomaceous earth treated with an amine solution followed by a layer of activated carbon for polishing. The system effectively removes HzS from the air flow into the unit. The system has been sized for a required ventilation rate in each structure. The odor control system has been sized with adequate ventilation and volume for additional media to treat the future headworks and EQ PS for planned future plant expansions. Calculations for the ventilation rates for each structure are included on the following pages The odor control unit is sized to provide sufficient residence time for effective removal of HzS and other odorous compounds common of raw sewage and headworks structures. Headworks Structure Influent Box Headspace Depth 5 ft Channel Length 5.25 ft Channel Width 26 ft Volume 682.5 ft3 5creenine Channels # of channels 3 Headspace Depth 5 ft Channel Length 32 ft Channel Width 4 ft Volume Each 640 ft3 Volume Total 1920 ft3 Effuent Box Headspace Depth 8.33 ft Channel Length 26 ft Channel Width 5.25 ft Volume 1137.045 ft3 Headcell Chamber Headspace Depth 6 ft Chamber Length 17 ft Chamber Width 14 ft Volume 1428 ft3 Total Volume 5167.545 ft3 Air Turnover Rate 6 air changes/hr Ventilation Rate 31005 ft3/hr 517 cfm Ventilation Rate 517 cfm each headworks structure # headworks structures 2 Headworks Ventilation Rate 1034 cfm Peak Flow Rate Ventilation Rate # EQ PS 1 Headworks + 1 E 2 Headworks + 2 EQ EQ Pump Station 15.56 MGD 10805.56 gpm 1444 cfm 2 1961 cfm 3922 cfm 1444.4 cfm The submersible mixers within the anaerobic selectors are to be provided as part of the approved sole source package of the oxidation ditch system by Kruger. Selection and sizing of the submersible mixers were provided by Kruger as part of their equipment package. A total of 3 mixers will be provided with one (1) in each of the anaerobic selector tanks. The mixers were sized to provide 2.7 HP of energy to each tank. As a check on the manufacturer's sizing, general mixing requirements for unaerated tanks is included in WEF MOP 8 to be 30 — 40 HP/MG of tank volume. Tank Volume = 0.07 MG 2.7 HP/0.07 MG = 38.6 HP/MG The mixing power provided is within the typical recommended range for mixing. The Oxidation Ditch system is supplied by Kruger with process design provided by Kruger. The ditch to be provided is the Biodenipho system which included providing an initial anaerobic selector for biological phosphorus removal and oxidation ditches operating in series with influent and effluent automated weir gates to control flow through the ditches. The ditches include automated controls systems to fluctuate between aerobic and anoxic conditions for efficient removal of nitrogen. Calculations for sizing of the oxidation ditch system have been prepared and provided by Kruger. These calculations are included in this Calculations tab under the "Design Effluent Calculations" section. The secondary clarifiers are being provided as part of a pre -approved equipment package to be provided by Kruger. Calculations estimating hydraulic loading rate to the clarifiers was provided in this Calculations tab under the "Design Effluent Calculations" section. It was noted in that section that hydraulic surface loading and weir loading rates were within the recommended limits presented in Metcalf and Eddy. Additional calculations for sizing the weirs, baffles, launder and suction headers are provided on the following pages. PROJECT NAME: 0 PROJECT 4: 18-149 �Nye ❑ LOCATION: 0 DATE: 6/10/2019 tiYIENTAL CLIENT: Veolia SHEET: 2OF3 9547 south 500 west, Sandy, UT CALC BY: LDB CHECKED BY: 0 PH 18011676-1090 FAX 18011676-1893 WEIR AND BAFFLE SIZING Tank Diameter (ft) 65 Inboard/Outboard Launder Inboafd Launder Width (ft) 1.6875 Weir Diameter (ft) 61.fi25 Notch Spacing (in) 6 # of notches 387 Average Max Peak Flow Rate (MGD) LIS 2.5 3.125 Flow Rate (ftA3/s) 1.93375 3.8675 4.834375 Water Depth (in) 1.01 1.33 1.46 Reccomended Notch Size 2.02 Use: e.5' Approx twice water depth 1.01 CENTER OF V-NOTCH TO BOTTOM OF V-NOTCH TOP OF V-NOTCH evel QF-002-03 P ENVIRONMENTAL 9547 South 500 West, Sandy, UT PH (801) 676-1890 FAX i8011 676-1893 LAUNDER SIZING Tank Diameter 65.00 ft AVERAGE FLOW Q (flow rate) = 1,250 MGD Q (flow rate) = 868 gpm b (width) = 1.50 ft do (ft) = 0.23 depth d1 (ft) = 0.41 actual depth Total depth 0.66 "+ 3" freeboard USE LAUNDER DEPTH 18.00 in MAX FLOW Q (flow rate) _ (Q^2/4*b^2*g)"1/3 Q (flow rate) _ 18 b (width) = do (ft) = 4.92 " d1 (ft) = 7.92 " PROJECT NAME: NE Brunswick, NC PROJECT #: 18-149 LOCATION: 0 DATE: 6/10/2019 CLIENT: Veolia SHEET: 3 OF 3 CALC BY: LDB CHECKED 0 BY: 3.13 M G D 2,170 gpm 1.50 ft 0.43 depth 0.76 actual depth (in) 9.07 Open channel head Ic "Design of Municipal hl=(V*n/(1.49*RA(2/3 MAX FLOW Q (ft^3/s) Total Depth 2.42 )SS, Wastewater Treatment Plants", Pg. 5-14, eqn. 5.6 9)))^2 X L for english units Length' Manning 102.10 0.013 1.04 ft Width' Depth ' 1.50 12.48 inches Velocity 0.43 3.730952886 Head loss 0.27 0.61 LecrRr � i'' rim PH (801) 676-1890 FAX (901)676-1893 Suction Header Flow 1. Fili in Orange 2. See important values in red 3. See final results in arev 1. Flow Rate min ras Rate per header (MGD; ft"3/s; gpm) 0.75 Ave Ras Rate per header (MGD; ft"3/s; gpm) 0.75 Max Ras Rate per header (MGD; ft"3/s; gpm) 2.00 Peak Ras Rate per header (MGD; ft"3/s; gpm) 1.50 3. Manifold size 2.154 araa 011171 93 7r1Rd37F column area (ft"2 3.142 Combined area ft"2) 26.350 Manifold radius(ft) 2.896 Estimated Minimum Manifold Diameter, flow (ft) 5.792 Manifold Height ft 2.654 sludge pit outer radius (ft) 3.000 Min Manifold radius physical (ft) 3.500 Min manifold diameter, physical (ft) 7.000 Actual manifold diameter (ft) 6.000 4. Header Length Tank Diameter (ft) 65 floor radius (ft) 32.5 manifold radius (ft), with connection 3.375 wall distance (ft) 0.5 header length (ft) 28.625 5. Floor Area Floor Area (ft"2) 3318.307 6. Estimate # of holes max hole spacing (in;ft) 30 Min Number of holes 11 A5 ave We area ft"2 0.D491 ave hole flowspeed (fVs) 2 ave hole flow rate (ft1131s;gpm) 0.098 # holes required 11.820 Actual # hotesi 14 # 5 Header end size Estimated Min Flow at end (ft"3/s) Area (ft"2) End hole face height (ft;in) Width (ft;in) 0.09817477 0.375 0.524 PROJECT NE Brunswi PROJECT#I: 18-149 NAME: LOCATION: 0 DATE: 6/10/2019 CLIENT: Veolia I SHEET: 4 OF 4 CALC BY: LDB I CHECKED 0 BV. MGD GPM 1.160 520.8333 1 160 520.83 3.094 1388.89 2 321 1041.67 25.853 2.5 44.061 The tertiary disk filters are provided as pre -approved equipment to be consistent with the existing equipment at the NE Brunswick Regional WWTP. The equipment is provided by Kruger as part of a sole source package. The equipment has been designed by the manufacturer to meet the required effluent limits of the treatment facility (TSS < 10 mg/L). The disc filters have been sized for the current phase peak flow with one unit out of service. A third unit will be added in the future to meet build out flow conditions. Each filter has been designed to meet the following conditions: Performance Criteria, System* Value 6.25 (4,340) Peak Flowrate, MGD (gpm) Design Flowrate, MGD (gpm) 2.5 (1,736) Filter Design Data Filter Pore Size, pm 10 Filter Cloth Material Polyester Number of Units 2 (1 duty + 1 standby) Number of Filter Discs per unit 19 Filter Disc Diameter, m 2.2 Effective Filter Surface Area per unit, ft2 744 Filter Drive Unit Drive Motor (1 per unit) 1.5 HP, 460v, 3 phase Drive Motor Service Factor 1.3 Drive Assembly Drive Chain and Sprocket Backwash Cleaning System Number of Backwash Nozzles (per Disc) 10 Backwash Pump (1 per unit) 15 HP, 460v, 3 phase Backwash Pressure, psi 110 Design Backwash Flowrate, gpm 130 The system has been designed to treat domestic wastewater after secondary clarification without exceeding a hydraulic loading rate of 5.83 gpm/sf at peak flow. The UV disinfection system is being sole sourced from Trojan Technologies, Inc to match existing UV disinfection equipment at the NE Brunswick Regional WWTP. The system being provided is an open channel UV 3000+ UV disinfection system. The System will be provided with four (4) banks of UV lamps with two (2) banks installed in two (2) parallel channels. One channel shall serve as a redundant channel. The UV disinfection equipment has been sized by Trojan Technologies to meet effluent limits of 25 MPN/100 mL of Fecal Coliform at influent loading conditions of: a. Peak Flow: 6.25 MGD b. Total Suspended Solids: 10 mg/I (Maximum, Grab sample) C. Effluent Temperature Range: 33 to 85 OF (1 to 30 °C) d. Ultraviolet Transmittance @ 253.7 nm. 65 %, minimum e. Maximum Mean Particle Size: 30 microns f. Effluent standards to be achieved: 25 /100 ml fecal coliform based on a 30 day Average of daily samples for the effluent standard as specified in a) through e). Effluent standards will be guaranteed regardless of influent count to UV system. The Cascade Step Post- Aeration system has been designed based on the procedure outline within Metcalf and Eddy to determine the necessary drop across the structure. It was determined that the Cascade Aerator needs to provide a minimum of 9.7 ft of drop. The structure has been designed with 10 ft of drop across the structure. A copy of the supporting calculations can be found on the following pages. <��McKIM&CREED ❑ MEMO ❑ TELEPHONE ❑ FIELD REPORT DATE: TIME? ❑ CONFERENCE AUTHOR: PROJECT CLIENT: SUBJECT: PROD. NO. 51- k4. m r TK,ft,�o - z S "' G 41 1� x n Ve, Te-^I -, = Z O ' c— iY-, -, x Z) Z- 1. DO v/ C• l .� s+= ACTION L7- COPY- www.mckimcreed.com MCKIM&CREED ❑ MEMO ❑ TELEPHONE ❑ FIELD REPORT ❑ CONFERENCE DATE: TIME: - AUTHOR: PROJECT: SUBJECT: CLIENT: PROJ. NO. _ 3 , < I G /< k- c-,� S C «%-c- r e-, /c e- ii -1 z\ �- e % , S"C TOP v `t,�ry * "r'c 1e V i ACTION COPY: www.mckimcreed.com The Rotary Drum Thickeners will provide for conditioning and thickening of WAS wasted for the Secondary Treatment process prior to sending to the ATAD reactors. This reduces water content and the ultimate size of the ATAD reactors. WAS is conditioned with polymer and flocculated in the flocculator tanks. Water is separated from the WAS in the rotary drum thickener to drain back to the EQ pump station and thickened WAS is discharged and stored in a vault to feed to ATAD reactors via a pair of ATAD reactor feed pumps. The feed pumps are also equipped to function as recycle pumps to keep the contents of the storage vault mixed. Selection and sizing of the Rotary Drum Thickener equipment was prepared by the equipment manufacturer based on anticipated WAS feed rates via the RAS/WAS pumps. See attached for sizing calculations to verify equipment selection criteria. In general, the Rotary Drum thickener equipment has been sized to meet the following requirements: Motor Size Input Sludge %DS Hydraulic Capacity Capacity Solids (Ibs/hr) Speed Drum Size -Diameter Output- %DS \—) teach @1/2HP 0.5% 16,800 gal/hr 1653.5 Ibs/hr 3 rpm 2 each @ 38.4" 4-6% ■ 3 ( ) // ( c 2E?�f 22=_p3 foi k��EIx �&wLL] \ k � E / \ 0 E 2 E 2 ID - © /kf u a 6 3 e_ a ( � ® k«® k«® \ )§� 2�A �A� ( / « £ « ) � } $ I \ I R S _ \ k LL � 0 § z k il � z £ The ATAD reactors have been pre -approved to be provided by Kruger through Fuchs as part of Kruger's equipment package. Equipment preapproval was authorized by the County to standardize treatment equipment and vendors at the NE Brunswick Regional WWTP. Sizing of the ATAD reactors has been prepared and provided by Kruger and Fuchs to meet anticipated loading requirements for the secondary treatment process based on Kruger's sludge generation rate estimates. Calculations summarizing the design of the ATAD reactors is found on the following pages. Q VEOl1A ATAD Design Summary/Calculations The proposed Autothermophillic Aerobic Digestion System is designed to compliance with 40 CFR Part 503 for Class A sludge VS Destruction: > 38% VSS destruction, OR < 1.5 mg 02/hr/gram TSS at 20°C in the treated sludge, OR < 15% reduction of volatile solids over an additional 30-day period at 20'C. Pathogen Destruction: Compliance with Time/Temperature Requirements per 40 CFR Part 503.32, Alternative 1, equation 3. D = 50,070,000 / 100.1400t Where: D = Time in days at temperature , t t = Sludge temperature, °C The existing ATAD system has been in operation since 2012 and has consistently complied with Class 503 Requirements for VS reduction and pathogen destruction (Time/Temperature). The table below is a comparison of the proposed ATAD system design with the existing ATAD design. Proposed Existing Sludge Loading Ibs/day 6,100 4,200 TS 5 5 Volume (gal/day) 14,630 10,070 Reactors QTY 2 2 Diameter 381011 291811 S W D 9' 2" 101011 Volume per reactor 76,000 gal (288 m3) 51,800 gal (196 m3) Mechanical Equipment (per Reactor) Aerator / Mixer 4 Centrox Aerators @ 11 kW ea 3 Spiral Aerators @ 7.5 kW ea 1 Center mixer @ 3 kW ea 1 center Aerator @ 4 kW ea Mixing/Aeration Power (per Reactor) 47 kW 26.5 kW Airflow per Reactor 750 CFM" 435 CFM Foam Cutters Not Required' 8 foam cutters @ 1.3 kW ea Sludge Retention Time (days) 10.6 10.3 Power Density (W/m3) 163 135 Aeration (ft3 fresh air/lb TS )° 22.5 18.7 A. Fresh airflow is induced into reactor at each aerator location via an external fan that creates a slight vacuum on the head space (1- 3 inches WC). B. The foam intake design of the Centrox Aerator reconstitutes surface foam into the sludge volume eliminating the need for foam cutters. The foam cutters in the classical design strike the foam surface causing it to collapse and do not promote mixing or reconstitution of foam into the sludge volume. C. Based on Total Reactor volume and Sludge volume D. Total Airflow applied divided by sludge loading per day NOTE: Addition of 3'd equal sized reactor (Phase ll) will increased the capacity to 9,200 Ibs DS/day 6/18/2019 Water Technologies I C) 'A .1 Al Y, ca 4-0 2) c O J CL 7+ 2) L .w0 0 L3 ; ■ A n IN oa 6 Z U) L 4-0 N E L CL NO :i cn 0 cn L I1 M Io I� A CD �X .E 0 a) c� a) �0 W I/\ O 0 E m 0 a) O (C) T- O (N U) U Z) LL O z i� rLAI 9 e!) �1 L� � ti �i cl� •�cl� i cif a.. d E d r0 U 10 Ln Co m of iJ .) R f11`d2 UMi r- a rry M co GV LA 04 CA 04 a d ,o O o C c v CD co -�� o a)v ° co 0 v v .0 0 � � 0 � � •� � � 'v a cu o o A A A A f 0 11 ttI !e r• t� t� 1 ml- Ip CA CU co cc � Q a C _o `3 FD C v C .7 4-4 -� a T 0 cati 5 C 0) E m C Q E '' E U v 0 A A. A /A, , Q3 co CL 0 a `0 X C C a C: a m M E C3] U E a N o a M • L p cz L O ' i -� [6 }, i (5 M - w C: 4 o E !E@ v •L _ co a E > nx VJ W Q mco . Q cm 3: •� aj E .F U) �y A A A A n Ln A A CD t— N U) 2 U D U- N) 0 z The Post ATAD holding tanks are sized to provide 60 days of storage at build out conditions based on estimated WAS generation rates estimated by Kruger for the secondary treatment process. Each tank will be equipped with a jet aeration system for mixing/aeration of the tanks. The jet aeration system has been sized by Kruger to meet mixing and aeration requirement to minimize odors and keep the contents of the holding tank aerobic. A summary of the design calculations for the hold tanks are on the following pages. Project: A/E R r urvs(,ui r-+ - Date: /2 - 6 7- 2 o fY Name: L � W Sheet: I— Ofq 4001 Weston Parkway Cary, NC 27513 USA 919-677-8310 www.krugerusa.com Iilillll! ! I! 1 Il HI.IiiI!MIMI J';! I1 ff 1 1 1 '.Ill I I I 1 1 t:l il.11n 1TOtn.R! 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I� of 1 !llg fl!IIII !!!il!�!III Il i!I { t, 4.�r'I�1 I to u# - 31�" �,� 5A liilll�ll��l � dill p i!IIlIi11 l �'r�o�'d ; • c��4 I a k �+etr r`� �n Cor I. (1TAA, ylys!44 �±il�lil!IlIII�! If;riflllll i�.,,�;n��l�1# II I i IllllillllI�II lif�1 I lllll I 11!l1111�11111 .1 ! I 1 i ( I I I I I I l I I I I I I II IIIIliI IIII!•il t'� Sulullni,1 la TccbA.Vkl i opl �tVIROMME"YAL (gag- 5 _c)k, C 9547 South 500 West Sandy, UT 84070 Phone (801) 676-1890 Fax (801) 676-1893 www.clearstreameng.cc ClearFlo Sludge Holding Basin with Jet Aeration System Design Calculations For NE Brunswick, NC WWTP Jan. 3, 2019 A. Site Conditions 1. Site elevation = 30 ft MSL (Assumed) 2. Average barometric pressure = 14.67 psia Temperature a. Wastewater = 45' C b. Air = 100° F B. Sludge Holding Basin Design 1. Number of basins = 2 2. Diameter = 60 ft. 0 in, 4. SWD = 24 ft. 6 in. 5. Volume — 1.04 MG C. Sludge Holding Basin Oxygen Requirement 1. Actual Oxygen Demand I a. Actual Oxygen Required = 3,000 lbs./day 2. Actual to Standard Oxygen Conversion Formula: a SOR AOR = (X6(T-20) PCSMID -CL Cs r1 + 0.5 L 34 J b. Where: a = 0.75 (3 = 0.95 T = ,. 45 ° C 0 = 1.024 Cs = 9.09 CL = 1,0 mg/L CSMID = Oxygen saturation concentration at 50 % submergence at site elevation and temperature. CSMID = 7.06 mg/I 3. Standard Oxygen Required = 4,197 lb/day a. Peaking factor = 1.50 4, Design SOR = 6,296 lb/day D. Sludge Holding Basin Equipment Design Average SOR Peak SOR 1. Submergence = 13.00 ft. 13.00 ft. 2. Aeration time (variable) = 18.00 hr/day 22.00 hr/day Sludge Holding Page 1 Version: 2.01: 01/17 I C L �'jS r 4�j gl"W� Cilles {'die 6 0f' ;Y� Efi1VIROTIMENTAL 3. SOR for aeration design 4. Design gassing rate 5. Absorption efficiency 6. Design air flow 7. Jets required 8. Aerators per basin 9. Jets per aerator E. Sludge Holding Basin Blower Calculations Operating blowers 2. A32. �w per blower 3. Inlet loss 4. Net inlet pressu 5, Discharge piping losses 6. Aeratorlosses 7. Total discharge pressure 8. Design ambient temperature 9. Site air flow required' 10. Equivalent sea lev pressure 11. Assumedfb1oGQr efficiency 12. TZwer Cower BHp I motor Hp F. Sludge Holding Basin Pump Calculations 1. Pumps per basin 2. Flow per pump 3. Total pump head 4. Specific gravity 5. Assumed pump efficiency 6. BHp per pump 7. Total pump BHp 8. Pump motor Hp G. Sludge Holding Basin Summary 1. Standard Oxygen Required 2. Total BHp (Avg for 24 hr.) 3. Sludge Holding Basin power usage 233 lb/hr = 117lb/hr/basin 19 SCFM/jet = 29.5% = 764 SCFM = 40 = 1 20 = 1 76SSCFM = 0.50 psig 14,17 ps 0. psig = 5.73 psig - 6.23 psig 100° F - 0" R 845 1C 7.45 psig = 60% 33.3 = 60 = 1 4,442 GPM = 21 ft. = 1.05 80% = 30.9 61.8 30 r 4,197lb/day - 48.17 = 647 kWh/day 9547 South 500 West Sandy, UT 84070 Phone (801) 676-1890 Fax (801) 676-1893 www. clearstreameng . oc 286lb/hr 143 Ib/hr/basin 26 SCFM/jet 27.2 % 1,018 SUM 40 1 20 1,020 SUM 0.50 psig 14.17 psia 0.50 psig 5,73 psig 6.23 psig 100' F 560' R 1,125 ICFM 7.45 psig 65% 01 60 1 4,442 GPM 21 ft. 1.05 80% 30.9 61.8 30 6,296 lb/day 65.91 1,081 kWh/day Sludge Holding Page 2 Version; 2,01: 01/17- Pa r- 7- 0 4-, "t iJ `pwC r- 5,ePcCOli/ ■ POSITIVE DISPLACEMENT BLOWER PA CKA GE RECOMMENDATIONS Customer: NE Brunswick Prepared by: Design data: Operating mode: Gauge pressure Inlet pressure: 14.6 psia Inlet temperature: 100 OF Air Humidity: 60% Technical data: Package type: Package: Blower: Drive motor: Drive motor power: cow PO k --ti4egretedf31PC EB 421 C Omega 53P 75.0 hp 4- 460V / 3 / 60Hz Performance data: Frequency Speed Inlet flow Q1 *: Air flow Q1(standard) standard conditions:14.7 psia, 68T, 36% RH Discharge temperature: Blower shaft power: Package input power: Specific performance: Sound pressure level**: Sound power level**: Estimated weight: Dimensions (W x L x H) Date: 04-30-2019 Page: 1 K. Ballew Flow medium: Air Pressure differential: 10.5 psig Discharge pressure: 25.1 psia Maximum pressure differential: 10.6 psig Blower speed (60hz): 3720 rpm % of blower's maximum speed: 89% Inlet flexible connector: None- Ambient intake Discharge flexible connector: Flanged- 6" ANSI Min Frequency 18.0 Hz 1116 rpm 244 cfm 222 scfm 313 OF 20.7 hp 18.2 kW 7.43 kW/100-cfm Design Point 38.9 Hz 2413 rpm 716 cfm 650 scfm 259 OF 45.5 hp 39.2 kW 5.47 kW/100-cfm 74 dB(A) 92 dB(A) 3450 lb 76.0 x 63.0 x 67.0 inches * Performance data to DIN ISO 1217- Annex E **Measured to DIN EN ISO 2151, figures ± 3 dB(A), with isolated pipework c 2019 Kaeser Compressors, Inc. All Rights Reserved Max Frequency 60.0 Hz 3720 rpm 1193 cfm 1083 scfm <- 253 OF 72.7 hp 62.4 kW 5.23 kW/100-cfm gluWzr- C'apaci Blower-V3.5 Pump Calculations ,,`�p,� H CARP''•, XAL ��98 _ Grit Pump Headcell Water Level 20.14 ft Suction Elevation 13 ft Discharge Elevation 25 ft Static Head 4.9 ft Qpump = 300 gpm Start Point: Headcell Stop Point: Grit Cleans Unit Flow Rate 300 gpm 0.67 CFS Fittines C Din Entrance 4 45 degree bend 4 Pipe 110 4 45 degree bend 4 Pipe 110 4 90 degree bend 4 Pipe 110 4 45 degree bend 4 Pipe 110 4 45 degree bend 4 Pipe 110 4 Tee Straight Through 4 Pipe 110 4 Plug Valve 4 Pipe 110 4 90 degree bend 4 Plug Valve 4 Check Valve 4 Pipe 110 4 90 degree bend 4 Pipe 110 4 Reducer(4"x6") 4 90 degree bend 6 Pipe 110 6 45 degree bend 6 Exit 6 Static Head = 4.9 ft Slurry Safety Factor 1.5 TDH = 20.1 ft 0.43 MGD 0.67 cfs tLft) k hf(ft) Area ft62 V fts Pumps In line/FlttlnE Q(tmm) N/A 0.50 0.5 0.09 7.7 1 300 N/A 0.27 0.2 0.09 7.7 1 300 3 N/A 0.2 0.09 7.7 1 300 N/A 0.27 0.2 0.09 7.7 1 300 3 N/A 0.2 0.09 7.7 1 300 N/A 0.52 0.5 0.09 7.7 1 300 3 N/A 0.2 0.09 7.7 1 300 N/A 0.27 0.2 0.09 7.7 1 300 5 N/A 0.4 0.09 7.7 1 300 N/A 0.27 0.2 0.09 7.7 1 300 4 N/A 0.3 0.09 7.7 1 300 N/A 0.34 0.3 0.09 7.7 1 300 1 N/A 0.1 0.09 7.7 1 300 N/A 1.35 1.2 0.09 7.7 1 300 1 N/A 0.1 0:09 7.7 1 300 N/A 0.51 0.5 0.09 7.7 1 300 N/A 1.35 1.2 0.09 7.7 1 300 N/A 1.70 1S 0.09 7.7 1 300 4 N/A 0.3 0.09 7.7 1 300 N/A 0.51 0.5 0.09 7.7 1 300 7 N/A 015 0.09 7.7 1 300 N/A 0.25 0.2 0.09 7.7 1 300 N/A 0.45 0.1 0.20 3.4 1 300 1 N/A 0.0 0.20 3.4 1 300 N/A 0.24 0.0 0.20 3.4 1 300 N/A 1.00 0.2 0.20 3.4 1 300 Total Headloss= 10.13 ft O Ln PA 0 F- O O O O O O O Ln O Ln O LM M N N r-I ri (11) Hdl O C 0 0 Ln O O O O N O E QL w EQ Pumps Low Water Level Alarm 7.32 ft Design Peak Flow 15.5625 MGD Pump Station Pump Off Level 7,82 ft # of Pumps 2 Pump Station Lead Pump On Level 11.82 ft Pump Capacity 5400 gpm Lag Pump On Level 15,12 ft } High Water Level Alarm 15.72 ft EQTank Low Level 28 ft EQTank High Level 50 ft High Static Head 42.2 ft Low Static Head 12.3 ft Qpump = 5400 gpm 7.78 MGD 12 03 cfs Qpeak= 10800 gpm 15,55 MGD 2406 cfs Start Point: EQ Pump Station Stop Point: EQTank Peak Flow Rate 10,800 gpm 24.06 CFS Fittings C Din L ift) k hf (ft) Area (ft^21 V (ft/51 Aumos In uneLits_ing Q (gpm) Reducer 12 N/A 0.30 1.1 0.79 15.3 1 5400 Pipe 110 18 7 N/A 0.1 1.77 6.8 1 5400 90 degree bend 18 N/A 0.36 0.3 1.77 6.8 1 5400 Pipe 110 18 15 N/A 0.2 1.77 6.8 1 5400 Check Valve 18 N/A 1.20 0,9 1.77 6.8 1 5400 Plug Valve 18 N/A 1.08 0.8 1.77 6.8 1 5400 Plpe 110 18 10 N/A 0.1 1.77 6.8 1 5400 90 degree bend 18 N/A 0.36 0.3 1.77 6.8 1 5400 Pipe 110 18 1 N/A 0.0 1.77 6.8 1 5400 Tee Branch Flow 18 N/A 0.72 0.5 1.77 6.8 1 5400 Pipe 110 20 1 N/A 0.0 2.18 5.5 1 5400 Tee Branch Flow (18"x24") 20 N/A 0.24 0.1 2.18 5.5 3 5400 Pipe 110 20 1 N/A 0.0 2.18 5.5 1 5400 Tee (branch) 20 N/A 0.36 0.2 2,1B 5.5 1 5400 Pipe 110 20 8 N/A 0.1 2.18 5.5 1 5400 90 degree bend 20 N/A 0.36 0.2 2.18 5.5 1 5400 Pipe 110 20 8 N/A 0.1 2.18 5.5 1 5400 Plug Valve 20 N/A 1.08 0.5 2.18 5.5 1 5400 Pipe 110 20 20 N/A 0.1 2.18 5.5 1 5400 90 degree bend 20 N/A 0.36 0.2 2.18 5.5 1 5400 Pipe 110 20 8 N/A 0.1 2.18 5.5 1 5400 Tee (branch) 20 N/A 0.36 0.2 2.18 5.5 1 5400 Pipe 110 24 40 N/A 011 3.14 IS 1 5400 22 degree bend 24 N/A 0.10 0.0 3.14 3.8 1 5400 Pipe 110 24 65 N/A 0.2 3.14 3.8 1 5400 22 degree bend 24 N/A 0.10 0.0 3.14 3.9 1 5400 Pipe 110 24 70 N/A 0.2 3.14 3.8 1 5400 Pipe 110 24 95 N/A 0.3 3.14 3.8 1 5400 45 degree bend 24 N/A 0.19 0.0 3.14 3.8 1 5400 Pipe 110 24 85 N/A 0.2 3.14 3.8 1 5400 22 degree bend 24 N/A 0.10 0.0 3.14 3.8 1 5400 Pipe 110 24 65 N/A 0.2 3.14 3,8 1 5400 11 degree bend 24 N/A 0.05 0.0 3.14 3.8 1 5400 Pipe 110 24 60 N/A 0,2 3,14 3,8 1 5400 45 degree bend 24 N/A 0.19 0.0 3.14 3.8 1 5400 Pipe 110 24 62 N/A 0.2 3.14 3.8 1 5400 45 degree bend 24 N/A 0.19 0.0 3.14 3.8 1 5400 Pipe 110 24 160 N/A 0.4 3.14 3.8 1 5400 Tee (branch) 24 N/A 0.36 0.1 3.14 3.8 1 5400 Pipe 110 24 10 N/A 0.0 3.14 3.8 1 5400 Plug Valve 24 N/A 1.08 0.2 3A4 3.8 1 5400 Pipe 110 24 10 N/A 0.0 3.14 3.8 1 5400 90 degree bend 24 N/A 0.36 0.1 3.14 3.8 1 5400 Pipe 110 24 2 N/A 0.0 3.14 3.8 1 5400 Exit Loss 24 N/A 0150 0.1 3.14 3.8 1 5400 Total Headloss= B.40 ft Static Head Low = 12.3 ft Static Head High = 42.2 ft TDH Low = 20.7 ft TDH High = 50.6 ft Average TDH = 35.6 ft Low Water Level Alarm 7.32 ft Design Peak Flow 15.5625 MGD Pump Station Pump Off Level 7.82 ft # of Pumps 2 Pump Station Lead Pump On Level 11.82 ft Pump Capacity 5400 gpm Lag Pump On Level 15.12 ft High Water Level Alarm 15.72 ft EQTank Low Level 28 ft EQTank High Level 50 ft High Static Head 42.2 ft Low Static Head 12.3 ft Qpump= 5400 gpm 7.78 MGD 12.03 cfs Qpeak = 10800 gpm 15 55 MGD 24.06 cfs Start Point: EQ Pump Station Stop Point: EQTank Peak Flow Rate 10,800 gpm 24.06 CFS Fittings C Din L ft k hum Area (fM2) V ft s PPmpi In LIne I tift Q Igpm1 Reducer 12 N/A 0.30 Li 0.79 153 1 5400 Pipe 110 18 7 N/A 0.1 1.77 6.8 1 5400 90 degree bend 18 N/A 0,36 0,3 1.77 6.8 1 5400 Pipe 110 18 15 N/A 0.2 1.77 6.8 1 5400 Check Valve 18 N/A 1.20 0.9 1.77 6.8 1 5400 Plug Valve 18 N/A L08 018 1.77 6.8 1 5400 Pipe 110 18 10 N/A 0.1 1.77 6.8 1 5400 90 degree bend 18 N/A 0.36 0.3 1.77 6.8 1 5400 Pipe 110 18 1 N/A 0.0 1.77 6.8 1 5400 Tee Branch Flow 18 N/A 0.72 0.5 1.77 6.8 1 5400 Pipe 110 20 1 N/A 0.0 2.18 5.5 1 5400 Tee Branch Flow (18"x24") 20 N/A 0.24 0.5 2.18 11.0 2 10800 Pipe 110 20 1 N/A 0.0 2.18 11.0 2. 10800 Tee (branch) 20 N/A 0.36 0.7 2.18 11,0 2 10800 Pipe 110 20 8 N/A 0.2 2.18 11.0 2 10800 90 degree bend 20 N/A 0.36 0.7 2.18 11.0 2 10800 Pipe 110 20 8 N/A 0.2 2.18 1L0 2 10800 Plug Valve 20 N/A 1.08 2.0 2.18 11.0 2 10800 Pipe 110 20 20 N/A 0.5 2.18 110 2 10800 90 degree bend 20 N/A 0.36 0.7 2.18 11.0 2 10800 Pipe 110 20 8 N/A 0.2 2.18 11.0 2 10800 Tee (branch) 20 N/A 0.36 0.7 2.18 11.0 2 10800 Pipe 110 24 40 N/A 0.4 3.14 7.7 2 10800 22 degree bend 24 N/A 0.10 0 1 3.14 7.7 2 10800 Pipe 110 24 65 N/A 0.6 3.14 7.7 2 10800 22 degree bend 24 N/A 0.10 0.1 3 14 7.7 2 10800 Pipe 110 24 70 N/A 0,7 314 7,7 2 10800 Pipe 110 24 95 N/A 0.9 3.14 7.7 2 10800 45 degree bend 24 N/A 0,19 0.2 3.14 7.7 2 10800 Pipe 110 24 85 N/A 0.8 314 7.7 2 10800 22 degree bend 24 N/A 0.10 0.1 3.14 7.7 2 10800 Pipe 110 24 65 N/A 0.6 3.14 7.7 2 10800 11 degree bend 24 N/A 0.05 0.0 3.14 7.7 2 10800 Pipe 110 24 60 N/A 0.6 3.14 7.7 2 10800 45 degree bend 24 N/A 0.19 0.2 3.14 7,7 2 10800 Pipe 110 24 62 N/A 0.6 3.14 7.7 2 10800 45 degree bend 24 N/A 0.19 0.2 3,14 7,7 2 10800 Pipe 110 24 160 N/A 1.5 3.14 7.7 2 10800 Tee (branch) 24 N/A 0.36 0,3 114 7.7 2 10800 Pipe 110 24 10 N/A 0.1 114 7,7 2 10800 Plug Valve 24 N/A 1.08 1.0 3.14 7.7 2 10800 Pipe 110 24 10 N/A 0.1 3.14 77 2 10800 90 degree bend 24 N/A 0.36 0.3 3.14 7.7 2 10800 Pipe 110 24 2 N/A 0.0 3.14 77 2 10800 Exit Loss 24 N/A 0.50 0.5 3.14 77 2 10800 Total Headloss= 20.33 ft Static Head Low = 12.3 ft Static Head High = 42.2 ft TDH Low = 32.6 ft TDH High = 62.5 ft Average TDH = 47.6 ft IA a� L U E d a-+ H C O a+ m -+ N Q. E 3 a C W O 0 N O O O O O O 0 0 0 0 tD IA a rn N (M) HUl g S O 0 0 00 I O 0 0 v 0 0 0 N O E a w 3 0 LL N a EQ Jet Motive Pumps Jet Motive pumps for the new EQ tank have been sized and selected by the equipment manufacturer based on current piping arrangements. Sizing has been performed based on current piping layout and to account for losses through the discharge nozzles of the jet header system. Oxidation Ditch Jet Motive Pumps Jet Motive pumps for the new oxidation ditch system have been sized and selected by the equipment manufacturer based on current piping arrangements. Sizing has been performed based on current piping layout and to account for losses through the discharge nozzles of the jet header system. RAS/WAS Pumps The RAS/WAS pumps are designed to provide service to send RAS continuously back to the head of the anaerobic selector at a rate of 1,040 gpm for each pump. Sending WAS to the rotary drum thickeners via the RAS/WAS pumps will be accomplished by a system of control valves. A control valve will be signaled to open on the WAS FM coming of the pump discharge. A modulating valve on the RAS FM coming off the RAS/WAS pump discharge header will then throttle down on the RAS line to divert flow to the rotary drum thickeners. The controlling head condition is through the WAS line and therefore additional losses through the RAS line will be achieved by the modulating valve to control flow splitting. The pumps will be sized for 1,240 gpm each at a head of 24.4 ft to achieve wasting demands. Clarifier Level 23,28 ft hf Anaerobic Tank Level 30.02 ft } Static Head 6.7 ft Qpump= 1040 gpm 1.50 MGD 2.32 cfs Start Point: Clarifier 6 Stop Point: Anaerobic Tank Discharge Pumps Online 1 Flow 1,040 gpm 2.32 CFS Fittings C Din L (ft) k hf (ft) Area ftA2 V (ft/sl Pumpl In Line/FFUEnR Q (Rpm) Inlet 12 N/A 0.25 0.0 0.79 30 1 1040 Pipe 110 12 3 N/A 0.0 0.79 3,0 1 1040 90 degree bend 12 N/A 0.36 0.0 0.79 310 1 1040 Pipe 110 12 50 N/A 0.2 0.79 3.0 1 1040 90 degree bend 12 N/A 0.36 0.0 0,79 3,0 1 1040 Pipe 110 12 21 N/A 0.1 0.79 3,0 1 1040 90 degree bend 12 N/A 0.36 0.0 0.79 3.0 1 1040 Pipe 110 12 110 N/A 0.4 0.79 3.0 1 1040 90 degree bend 12 N/A 0.36 0.0 0.79 3,0 1 1040 Pipe 110 12 59 N/A 0.2 0.79 3,0 1 1040 90 degree bend 12 N/A 0.36 0.0 0.79 3.0 1 1040 Pipe 110 12 5 N/A 0.0 0.79 3.0 1 1040 90 degree bend 12 N/A 0.36 010 0.79 3.0 1 1040 Pipe 110 12 3 N/A 0.0 0.79 3.0 1 1040 90 degree bend 12 N/A 0.36 010 0.79 3.0 1 1040 Pipe 110 12 3 N/A 0.0 0.79 3.0 1 1040 Tee (branch) 12 N/A 0.36 0.0 0.79 3.0 1 1040 Plug Valve 16 N/A 1.08 0.0 1.40 1.7 1 1040 Tee (branch) 8 N/A 0.36 0.2 0.35 6.6 1 1040 Pipe 110 8 2 N/A 0.1 0.35 6.6 1 1040 Plug Valve 8 N/A 1_08 0.7 0.35 6.6 1 1040 Reducer 6 N/A 0.30 0,0 0,20 0.0 1 1040 • 90 degree bend 8 N/A 0.36 0.2 0.35 6.6 1 1040 Pipe 110 8 2 N/A 0.1 0.35 6.6 1 1040 90 degree bend 8 N/A 0.36 0.2 0.35 6.6 1 1040 Check Valve 8 N/A 1.20 0.8 0.35 6.6 1 1040 Plug Valve 8 N/A 1.08 0.7 0.35 6,6 1 1040 Pipe 110 8 3 N/A 0.1 0.35 6.6 1 1040 90 degree bend 8 N/A 0.36 0.2 0.35 616 1 1040 Pipe 110 8 6 N/A 0.2 0.35 6.6 1 1040 90 degree bend 14 N/A 0.36 0.0 1.07 2,2 1 1040 Pipe 110 14 5 N/A 0.0 1.07 2,2 1 1040 Tee (straight through) 14 N/A 0.78 0.1 1.07 2.2 1 1040 Pipe 110 14 5 N/A QO 1,07 2.2 1 1040 Tee (straigh through) 14 N/A 0.78 0.1 1.07 2,2 1 1040 Pipe 110 14 5 N/A 0.0 1.07 2.2 1 1040 Tee (straigh through) 14 N/A 0.78 0.1 1.07 2.2 1 1040 Reducer 10 N/A 0.30 0.1 0.55 4.2 1 1040 Pipe 110 10 5 N/A 0.0 0.55 4.2 1 1040 Flow Meter 10 N/A 0.10 0.0 0.55 4.2 1 1040 Pipe 110 10 5 N/A 0.0 0.55 4.2 1 1040 Tee (branch) 10 N/A 0.36 0.1 0.55 4.2 1 1040 Pipe 110 14 17 N/A 0.0 1.07 2.2 1 1040 90 degree bend 14 N/A 0.36 0.0 1.07 2.2 1 1040 Pipe 110 14 18 N/A 0.0 1.07 2.2 1 1040 90 degree bend 14 N/A 0.36 0.0 1.07 2.2 1 1040 Pipe 110 14 7 N/A 0.0 1.07 2.2 1 1040 90 degree bend 14 N/A 0.36 0.0 1.07 2.2 1 1040 Pipe 110 14 180 N/A 0.3 1.07 2.2 1 1040 90 degree bend 14 N/A 0,36 0.0 1.07 2,2 1 1040 Pipe 110 14 200 N/A 0.4 1.07 2.2 1 1040 90 degree bend 14 N/A 0.36 0.0 L07 2,2 1 1040 Pipe 110 14 66 N/A 0,1 1.07 2.2 1 1040 Exit Loss 24 N/A 0.50 0.0 3.14 0,7 1 1040 Total Headloss= 6,57 ft Static Head Low = 6.7 ft TDH = 23.3 ft Clarifier Level 23.28 ft Anaerobic Tank Level 30.02 ft I Static Head 6.7 ft Qpump = 1040 gpm 1.50 MGD 2.32 cfs Start Point: Clarifier 6 Stop Point: Anaerobic Tank Discharge Pumps Online 1 Flow 1,040 gpm 2.32 CFS Fittings C o in It hf Iftl Area (ftA2) v Ift/sl Pumas In UnplFlttina. Q Ieom1 Inlet 12 N/A 0.25 0.0 0.79 3.0 1 1040 Pipe 110 12 3 N/A 0.0 0.79 3.0 1 1040 90 degree bend 12 N/A 0.36 0.0 0.79 3.0 1 1040 Pipe 110 12 So N/A 0.2 0.79 3.0 1 1040 90 degree bend 12 N/A 0.36 0.0 0.79 3.0 1 1040 Pipe 110 12 21 N/A 0.1 0.79 3.0 1 1040 90 degree bend 12 N/A 0.36 0.0 0.79 3.0 1 1040 Pipe 110 12 110 N/A 0.4 0.79 3.0 1 1040 90 degree bend 12 N/A 0.36 0.0 0.79 10 1 1040 Pipe 110 12 59 N/A 0.2 0.79 3.0 1 1040 90 degree bend 12 N/A 0.36 0.0 0,79 310 1 1040 Pipe 110 12 5 N/A 0.0 0.79 10 1 1040 90 degree bend 12 N/A 0.36 0.0 0.79 310 1 1040 Pipe 110 12 3 N/A 0.0 0.79 3.0 1 1040 90 degree bend 12 N/A 0.36 0.0 0.79 10 1 1040 Pipe 110 12 3 N/A 0.0 0.79 310 1 1040 Tee (branch) 12 N/A 0.36 0.0 0.79 3.0 1 1040 Plug Valve 16 N/A 1.08 0.0 1.40 1.7 1 1040 Tee (branch) 8 N/A 0.36 0.2 0.35 6.6 1 1040 Pipe 110 8 2 N/A 0.1 0.35 6,6 1 1040 Plug Valve 8 N/A 108 0.7 0.35 6.6 1 1040 Reducer 6 N/A 0.30 0.0 0.20 0.0 1 1040 •I 90 degree bend 9 N/A 0.36 0.2 0.35 6.6 1 1040 Pipe 110 8 2 N/A 0.1 0.35 &6 1 1040 90 degree bend 8 N/A 0.36 0.2 0,35 6.6 1 1040 Check Valve 8 N/A 1.20 0.8 0.35 6.6 1 1040 Plug Valve 8 N/A 1.08 0.7 0.35 6.6 1 1040 Pipe 110 8 3 N/A 0.1 0.35 6.6 1 1040 90 degree bend 8 N/A 0.36 0.2 0.35 6.6 I 1040 Pipe 110 8 6 N/A 0.2 0.35 6.6 1 1040 90 degree bend 14 N/A 0.36 0.0 1.07 2,2 1 1040 Pipe 110 14 5 N/A 0.0 1.07 2.2 1 1040 Tee (straight through) 14 N/A 0.78 0.1 1.07 Z2 1 2080 Pipe 110 14 5 N/A 0.0 1.07 2.2 1 2080 Tee (straigh through) 14 N/A 0.78 0.1 1.07 2.2 1 2080 Pipe 110 14 5 N/A 0.0 1.07 2.2 1 2080 Tee (straigh through) 14 N/A 0.78 0.1 1.07 2.2 1 2080 Reducer 10 N/A 0.30 0.1 0.55 4.2 1 2080 Pipe 110 10 5 N/A 0.2 0.55 4,2 1 2080 Flow Meter 10 N/A 0.10 0.0 0.55 4.2 1 2080 Pipe 110 10 5 N/A 0.2 0.55 4.2 1 2080 Tee (branch) 10 N/A 0.36 0.1 0.55 4,2 1 2080 Pipe 110 14 17 N/A 0.1 1.07 2-2 1 2080 90 degree bend 14 N/A 0.36 0.0 1.07 Z2 1 2080 Pipe 110 14 18 N/A 0.1 1.07 2.2 1 2080 90 degree bend 14 N/A 0.36 0.0 1.07 2.2 1 2080 Pipe 110 14 7 N/A 0.0 1.07 2.2 1 2080 90 degree bend 14 N/A 0.36 0.0 1,07 2.2 1 2080 Pipe 110 14 180 N/A 1.1 1_07 2.2 1 2080 90 degree bend 14 N/A 0,36 0.0 1.07 2.2 1 2080 Pipe 110 14 200 N/A 1.3 1.07 2,2 1 2080 90 degree bend 14 N/A 0.36 0.0 1.07 2.2 1 2080 Pipe 110 14 66 N/A 0.4 1.07 2.2 1 2080 Exit Loss 24 N/A 0.50 0.0 3,14 0.7 1 2080 Total Headloss= 9_08 ft Static Head Low = 6.7 ft TDH = 15.8 ft Clarifier Level 23.28 ft Anaerobic Tank Level 30.02 ft 1 Static Head 6.7 ft Qpump = 1040 gpm 1.50 MGD 2.32 cfs Start Point: Clarifier 6 Stop Point: Anaerobic Tank Discharge Pumps Online 1 Flow 1,040 gpm 2.32 US Fittings C D in L ft k hf (ft) Area ft-2 V ft s Pumps In Uste/Fltting Inlet 12 N/A 0.25 0.0 0.79 3.0 1 Pipe 110 12 3 N/A 0.0 0,79 10 1 90 degree bend 12 N/A 0.36 0.0 0.79 3.0 1 Pipe 110 12 50 N/A 0.2 0.79 3.0 1 90 degree bend 12 N/A 0.36 0.0 0.79 10 1 Pipe 110 12 21 N/A 0.1 0.79 3.0 1 90 degree bend 12 N/A 0.36 0.0 0.79 3.0 1 Pipe 110 12 110 N/A 0.4 0.79 3.0 1 90 degree bend 12 N/A 0.36 0.0 0.79 3.0 1 Pipe 110 12 59 N/A 0.2 0.79 3.0 1 90 degree bend 12 N/A 0.36 M0 0.79 3.0 1 Pipe 110 12 5 N/A 0.0 0.79 3.0 1 90 degree bend 12 N/A 0.36 0.0 0.79 3.0 1 Pipe 110 12 3 N/A 0.0 0.79 10 1 90 degree bend 12 N/A 0.36 0.0 0.79 3,0 1 Pipe 110 12 3 N/A 0.0 0.79 3_0 1 Tee (branch) 12 N/A 0.36 0.0 0.79 3.0 1 Plug Valve 16 N/A 1.08 0.0 1.40 1.7 1 Tee (branch) 8 N/A 0.36 0.2 0.35 6.6 1 Pipe 110 a 2 N/A 0.1 0.35 6.6 1 Plug Valve 8 N/A 1.08 0.7 0.35 6.6 1 Reducer 6 N/A 0.30 0.0 0.20 0.0 1 90 degree bend 8 N/A 0.36 0.2 0.35 6.6 1 Pipe 110 8 2 N/A 0.1 0.35 6.6 1 90 degree bend 8 N/A 0.36 0.2 0.35 6.6 1 Check Valve 8 N/A 1.20 0.8 0.35 6.6 1 Plug Valve 8 N/A 1.08 0.7 0.35 6.6 1 Pipe 110 8 3 N/A 0.1 0.35 6.6 1 90 degree bend 8 N/A 0.36 0.2 0.35 6.6 1 Pipe 110 8 6 N/A 0.2 0,35 6.6 1 90 degree bend 14 N/A 0.36 0.0 1.07 2.2 1 Pipe 110 14 5 N/A 0.0 1.07 2.2 1 Tee (straight through) 14 N/A 0.78 0.1 1.07 2.2 1 Pipe 110 14 5 N/A 0.0 1.07 2.2 1 Tee (straigh through) 14 N/A 0.78 0.1 1.07 2.2 1 Pipe 110 14 S N/A 0.1 1.07 12 1 Tee(straigh through) 14 N/A 0.78 0.1 1.07 2.2 1 Reducer 10 N/A 0.30 0.1 0.55 4.2 1 Pipe 110 10 5 N/A 0.3 0.55 4.2 1 Flow Meter 10 N/A 0.10 0.0 0.55 4.2 1 Pipe 110 10 5 N/A 0.3 0.55 4.2 1 Tee (branch) 10 N/A 0.36 0.1 0.55 4.2 1 Pipe 110 14 17 N/A 0.2 1.07 12 1 90 degree bend 14 N/A 0.36 0.0 1.07 2.2 1 Pipe 110 14 18 N/A 0.2 L07 2.2 1 90 degree bend 14 N/A 0.36 0.0 1.07 12 i Pipe 110 14 7 N/A 0.1 L07 2.2 1 90 degree bend 14 N/A 0.36 0.0 L07 12 1 Pipe 110 14 180 N/A 2.4 1-07 2.2 1 90 degree bend 14 N/A 0.36 0.0 1.07 2.2 1 Pipe 110 14 200 N/A 2.7 L07 2.2 1 90 degree bend 14 N/A 0.36 0.0 1.07 12 1 Pipe 110 14 66 N/A 0.9 1.07 2.2 1 Exit Loss 24 N/A 0.50 0.0 3.14 0.7 1 Total Headloss = 12.93 ft Static Head Low = 6.7 ft TDH = 19.7 ft hf = Q (Rom) 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 2080 2080 3120 3120 3120 3120 3120 3120 3120 3120 3120 3120 3120 3120 3120 3120 3120 3120 3120 3120 3120 3120 Clarifier Level 23,28 ft Flocculator Discharge Elevation 3L4 Ft Static Head 8,1 Ft Qpump= 1240 gpm 1.79 VIGO 2.76 cfs Start Point: Clarifier 6 Stop Point: Anaerobic Tank Discharge Pumps Online 1 RAS Flow 1,040 gPm WAS Flow 200 gPm 2.32 CFS Fittings y 1� L1n1 k hf lkl Area (ft-2) V ft s Inlet 12 N/A 0.75 0.0 0.79 3.5 1 Pipe 110 12 3 N/A QO 0.79 3-5 1 90 degree bend 12 N/A 0.36 Q1 0-79 3.5 j Pipe 110 12 50 N/A Q3 0-79 3.5 I 90 degree bend 12 N/A 0.36 Q1 0.79 3.5 ], Pipe 110 12 21 N/A 0.1 0.79 3.5 I 90 degree bend 12 N/A 0.36 01 0.79 3.5 i Pipe 110 12 110 N/A a 0.79 3.5 1 90 degree bend 12 N/A 0.36 Q1 0.79 3.5 } Pipe 110 12 59 N/A Q3 0.79 3.5 I 90 degree bend 12 N/A 0.36 Q1 0.79 3.5 1 Pipe 110 12 5 N/A QO 0.79 3.5 j 90 degree bend 12 N/A 0.36 QI 0,79 35 1 Pipe 110 12 3 N/A 00 0,79 3.5 $ 90 degree bend 12 N/A 0.36 a 0.79 15 1 Pipe 110 12 3 N/A QO 0.79 3.5 j Tee (branch) 17 N/A 0.36 0.1 0.79 3.5 1 Plug Valve 16 N/A 1.08 01 L40 2.0 j Tee (branch) 8 N/A 0.36 Q4 0.35 7.9 1 Pipe 110 8 2 N/A 0.1 0.35 7.9 1 Plug Valve 8 N/A 1.06 1.1 0.35 7.9 1 Reducer 6 N/A 0.30 00 0.20 0.0 1 90 degree bend a N/A 0.36 0 4 0.35 7.9 j Pipe 110 8 2 N/A 01 035 7.9 1 90 degree bend a N/A 0.36 04 035 7.9 1 Check Valve a N/A 1.20 12 0 35 7.9 .1 Plug Valve a N/A 1.08 11 035 7.9 1 Pipe 110 a 3 N/A 01 035 7.9 I 90 degree bend a N/A 0.36 04 035 7.9] Pipe 110 a 6 N/A 02 0.35 7.9 } 90 degree bend 14 N/A 0.36 0.0 L07 2.6 1 \I Pipe 110 14 5 N/A QO L07 2.6 1 Tee (straight through( 14 N/A 0.70 0.1 1.07 2.6 1 Pipe 110 14 5 N/A 00 1.07 2.6 j Tee (straigh through) 14 N/A 0.78 0.1 1.07 2.6 1 Pipe 110 14 5 N/A 00 1,07 2.6 1 Tee (straigh through) 14 N/A 0.7a 01 1.07 2.6 1 Reducer 10 N/A 0.30 01 0,55 5.1 1 Pipe 110 10 5 N/A 01 0,55 5.1 1 Flow Meter 10 N/A 0.10 00 0.55 5.1 ] Pipe 110 10 5 N/A 01 0.55 5.1 1 Tee (branch) 30 N/A 0.36 0.1 0.55 5.1 1 Reducer (14" x 8") 8 N/A 0.30 03 0.35 7.9 1 90 degree bend a N/A 0.36 04 0.35 7.9 } Pipe 110 8 13 N/A QO M35 7.9 Q 90 degree bend a N/A 0.36 64 0.35 7.9 1 Pipe 110 a SO N/A 0'0 0.35 7.9 S 90 degree bend 8 N/A 0.36 Q4 035 7.9 ] Pipe 110 8 20 N/A QO 035 7.9 } Reducer(8"x6') 6 N/A 0.30 0.9 020 14.1 1 Pipe 110 6 3 N/A Q0 0.20 14.1 I Flow Meter 6 N/A 0.10 Q3 0,20 14.1 ] Pipe 110 6 3 N/A QO 0-20 14.1 1 Reducer(e"x6") 6 N/A 0.30 019 0.20 14.1 1 Pipe 110 8 4 N/A QO 0,35 7.9 1 90 degree bend 8 N/A 0.36 0.4 0.35 7.9 j Pipe 110 8 4 N/A 0.0 035 7.9 1 90 degree bend a N/A 0.36 0.4 0 35 7.9 1 Pipe 110 8 16 N/A 0.0 035 7-9 1 90 degree bend 8 N/A 0.36 0.4 035 7.9 j Pipe 110 8 79 N/A 0.1 035 7.9 1 90 degree bend 8 N/A 0.36 0.4 0.35 7.9 Pipe 110 e 9 N/A 0.0 035 7.9 1 90 degree bend 8 N/A 0.36 0.4 035 7,9 I Pipe 110 8 12 N/A 0.0 Q35 7.9 I 90 degree bend 8 N/A 0.36 0.4 035 7.9 I Pipe 110 8 30 N/A 0.0 035 7.9 1 Tee(straigh through) 8 N/A 0.78 0.8 035 79 1 Pipe 110 8 15 N/A 0.0 035 7.9 I 90 degree bend 8 N/A 0.36 0.4 035 7-9 1 Pipe 110 8 6 N/A 0.0 035 7.9 ] 90 degree bend 8 N/A 0.36 0.4 035 7.9 ] Plug Valve 8 N/A 1.00 1.1 035 7.9 1 Exit Loss 24 N/A 0.50 0.0 3.14 09 1 Total Headlass= 16.26 it Static Head Low = 9.1 ft TDH = 24.4 ft T. QI'P' 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 1240 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 W D V C G `W .iA V Y a 5 a tn a oc 0 0 0 0 o O o L; o Ln o Ln M N N e-I .-1 UJ) H41 0 0 0 0 0 0 0 v 0 0 0 Ln cn 0 0 0 0 m o � o a o L N O J LL 2 W V) O � O O Q O ~O 0 0 0 Ln 0 0 0 0 0 0 0 Ln 0 0 Scum Pumps a i J a z O a w Y U N z m w z ❑ ~� a N N r 0 LL aco 2 J F W f0 CO)CO)CIS) O d LL z M v LO to co co Lr � a v � J x Q LL "' r H U) J N tin K] tp (O O a p O BJ Q7 W N to to o o rn rn a [7 > •�- SV N G'S M CV N M C7 O O ( O',O O O O O O O O d O I O t �2 �2 r ;t �2 LL J LL O 7 M t` x LL o O ❑ W x L J W O > � U p vWi � o Y o c� o m a o 0 0 0 CD o v M O O W W LL > U O <n to N M N LO M L, N U ¢ Q O N CDO 0 O O O O LL l L Y Of C w a F d Z LL to C.4 ,- M N N v LU 10 J L V N ¢ 0 a Z v ato 0 > cn A U LL > > W x O W W a L\ z w- J LL LL O LJL > Q > m Q' Z IL O a N w w '� > m m W U x CE w W�_ E LL > H L] W r J N❑ m r U (7 Q O W Q u J ¢ H W x¢ F W p W to ❑ W N W W W H ❑ Z J J❑ Z �' y > m 0 [7 M-:� N 2 r� W O m LL� M O N O r V O O O C�7 O p 0 ZlmnatcFied WeliabiCity (D6,Chopper �•� au are PERFORMANCE CURVE IModels: V3FRII 2-131ade Impeller 3" Discharge Tangential Casing CURVE POWER SPEED IMPELLER ❑IAME ER A 5 1170 I. -6.5" ' 5 m m B 5 41-7 `06" 152 m ELI 1--C 5 1170 5.5" 140 m m DO NOT OPERATE PUMP IN DOTTED PORTION OF CURVES. PUMPS MAY EXCEED HP SHOWN IF OPERATED IN DOTTED PORTION OF CURVE. CURVES ARE SUBJECT TO CHANGE WITHOUT NOTICE. EFFICIENCIES SHOWN ARE NOMINAL BOWL. GUARANTEED MINIMUM EFFICIENCIES PER H.I. LEVEL A. CAPACITY (CUBIC METERS PER HOUR) 18 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 A. , 5 16 20% ! .I .25°I° 30°I° �.. .. j 14 } I - -35%g. r . �.. - 4 12 w Ld Lu w 10 _ `C `a -f- 3 °a 4 - - - } lr w I ~ I 2 Q 1-- r35°1° 6 �---- —�..._ - - - O 30%- 0 0 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 CAPACITY (U S. GALLONS PER MINUTE) Form V242-XE3F'-1170 07118 Effluent Pumps Low Water Level Alarm -9.8 ft Design Peak Flow 7.5 MGD Pump Station Pump Off Level -9.3 ft # of Pumps 2 Pump Station Lead Pump On Level -5.8 ft Pump Capacity 2604 gpm Lag Pump On Level -2 3 ft High Water Level Alarm -1.8 ft Discharge Elevation 11 ft High Static Head 20.8 ft Low Static Head 12.8 ft Qpump = 2610 gpm 3.76 MGD 5.81 cfs Qpeak = 5210 gpm 7.50 MGD 1161 cfs Start Point: Effluent Pump Station Stop Point: Effluent FM Tie In Peak Flow Rate 5,210 gpm 11.61 CFS Fittings C Din LJ_ft_) k hf (ft) Area ftA2 V (ft/s) Pumas In LinelFittinA Q (RPM) 90 degree bend 12 N/A 0.36 0.3 0.79 7.4 1 2610 Pipe 110 12 28 N/A 0.6 0.79 7.4 1 2610 90 degree bend 12 N/A 0.36 0.3 0.79 7.4 1 2610 Pipe 110 12 13 N/A 0.3 0.79 7.4 1 2610 Check Valve 12 N/A 1.20 1.0 0.79 7.4 1 2610 Plug Valve 12 N/A 1.08 0.9 0.79 7.4 1 2610 Pipe 110 12 8 N/A 0.2 0.79 7.4 1 2610 90 degree bend 12 N/A 0.36 0.3 0.79 7.4 1 2610 Pipe 110 18 2.5 N/A 0.0 1.77 3.3 1 2610 Tee Branch Flow 12 N/A 0.72 0.6 0.79 7.4 1 2610 Pipe 110 20 1 N/A 0.0 2.18 2.7 1 2610 Tee Straight Through 20 N/A 0.26 0.0 2.18 2.7 1 2610 Pipe 110 20 1 N/A 0.0 2.18 2:7 1 2610 Tee Straight Through 20 N/A 0,26 0.0 2.18 2.7 1 2610 Pipe 110 20 6 N/A 0.0 2.18 2.7 1 2610 Gate Valve 20 N/A 0.10 0.0 2.18 2.7 1 2610 Pipe 110 20 12 N/A 0.0 2.18 2.7 1 2610 Flow Meter 20 N/A 0.10 0.0 2.18 2.7 1 2610 Pipe 110 20 12 N/A 0.0 2.18 2.7 1 2610 Gate Valve 20 N/A 0.10 0.0 2.18 2.7 1 2610 Pipe 110 20 11 N/A 0.0 2.18 2.7 1 2610 90 degree bend 20 N/A 0.36 0.0 2.18 2.7 1 2610 Pipe 110 20 3 N/A 0.0 2.18 2.7 1 2610 Tee Straight Through 24 N/A 0.26 0.0 3.14 1.9 1 2610 Pipe 110 24 2 N/A 0.0 3.14 1.9 1 2610 Reducer(20"x24") 24 N/A 0.25 0.0 3.14 119 1 2610 Gravity Flow through Effluent Force Main Total Headloss = 4.72 it Static Head Low = 12.8 ft Static Head High = 20.8 ft TDH Low = 17.5 ft TDH High = 25.5 ft Average TDH = 21.5 ft Low Water Level Alarm -9.8 ft Design Peak Flow 7.5 MGD Pump Station Pump Off Level -9.3 ft # of Pumps 2 Pump Station Lead Pump On Level -5.8 ft Pump Capacity 2604 gpm Lag Pump On Level -2.3 ft High Water Level Alarm -1.8 ft Discharge Elevation 11 ft High Static Head 20.8 ft Low Static Head 12.8 ft Qpump = 2610 gpm 3.76 MGD 5.81 cfs Qpeak= 5210 gpm 7.50 MGD 11.61 cfs Start Point: Effluent PS Stop Point: Effluent FM Tie In Peak Flow Rate 5,210 gpm 11.61 US Fittings C D in L Ift) k hf (ft) Area (ft-2) V ft s Pumas In Line/FiLtlna Q (gpm) 90 degree bend 12 N/A 0.36 0.3 0.79 7.4 1 2610 Pipe 110 12 28 N/A 016 0.79 7.4 1 2610 90 degree bend 12 N/A 0.36 0.3 0.79 7.4 1 2610 Pipe 110 12 13 N/A 0.3 0.79 7.4 1 2610 Check Valve 12 N/A 1.20 1.0 0.79 7.4 1 2610 Plug Valve 12 N/A 1.08 0.9 0.79 7.4 1 2610 Pipe 110 12 8 N/A 0.2 0.79 7.4 1 2610 90 degree bend 12 N/A 0.36 0.3 0.79 7.4 1 2610 Pipe 110 18 2.5 N/A 0.0 1.77 3.3 1 2610 Tee Branch Flow 12 N/A 0.72 2.5 0.79 14.8 2 5220 Pipe 110 20 1 N/A 0.0 2.18 5.3 2 5220 Tee Straight Through 20 N/A 0.26 0.1 2.18 5.3 2 5220- Pipe 110 20 1 N/A 0.0 2:18 5.3 2 5220 Tee Straight Through 20 N/A 0.26 0.1 2.18 5.3 2 5220 Pipe 110 20 6 N/A 0.0 2.18 5.3 2 5220 Gate Valve 20 N/A 0.10 0.0 2.18 5.3 2 5220 Pipe 110 20 12 N/A 0.1 2.18 5.3 2 5220 Flow Meter 20 N/A 0.10 0.0 2.18 5.3 2 5220 Pipe 110 20 12 N/A 0.1 2.18 5.3 2 5220 Gate Valve 20 N/A 0.10 0.0 2.18 5.3 2 52.20 Pipe 110 20 11 N/A 0.1 2.18 5.3 2 5220; 90 degree bend 20 N/A 0.36 0.2 2.18 5.3 2 5220 Pipe 110 20 3 N/A 0.0 2.18 5.3 2 5220 Tee StralghtThrough 24 N/A 0.26 0.I 3.14 3.7 2 5220 Pipe 110 24 2 N/A 0.0 3,14 3.7 2 5220 Reducer(20"x24") 24 N/A 0.25 0.1 3.14 3.7 2 5220 Gravity Flow through Effluent Force Main Total Headloss = 7.23 ft Static Head Low = 12.8 ft Static Head High = 20.8 ft TDH Low = 20.0 ft TDH High = 28.0 ft Average TDH = 24.0 ft a� L E H N C O a=+ m -W N C. E 7 a C 01 _3 W O C v O O O O O LM G Ln O Y1 M M N N ei (ld) Hal QO V O g E a a o a O O O O RCW Pumps v MCKIM&CREED ❑ MEMO ❑ TELEPHONE ❑ FIELD REPORT DATE ❑ CONFERENCE AUTHOR: PROJECT: SUBJECT: CLIENT: TIME: PROD. NO. Dr eyy" 11 �r,y C/Sf�1 _ S �j x J Q = z 95 jp oer, o, S IjA 1I'ON COPY: www.mckimcreed.com ATAD Reactor Feed Pumps ATAD Reactor Transfer Pumps ATAD Discharge Pumps The solids handling pumps are included as part of the ATAD reactor package to meet performance warranty requirements. Pumping equipment has been sized and selected by Kruger as part of this package. All solids handling pumps are positive displacement type solids handling pumps. Therefore, the pump curves provide a consistent flow rate regardless of system head. System curves therefore have not been prepared for this type of pump as system head does not significantly impact operating flow rate. Q VEOLIA Sludge Pump Sizing Calculations Flow Rate Calculations At the future (Phase II) plant design capacity of 3.75 MGD, the estimated WAS production would be about 9,200 Ibs DS/day at the current design load. The sludge must be thickened to a dry solids concentration of 5% prior to feeding the ATAD. Thus, the daily sludge batch volume to the ATAD system is about 22,000 gal/day. Under the future Phase II design, a third reactor will be added. The normal flow path is two stage operation where Reactor 1 followed by Reactors 2 and 3 operating in parallel. With that configuration, total then three batch volumes per day are sequentially transferred in the following order Batch 1: ATAD Discharge - Reactor 2 and 3 to Post Holding tank at % batch volume each Batch 2: ATAD Transfer - Reactor 1 to Reactor 2 and 3 at %: batch volume each Batch 3: ATAD Feed- Thickened Sludge Holding to Reactor 1 in 1 batch volume The batching operation should be completed in 90 minutes in order to ensure sufficient aeration time to meet time/temperature requirements for pathogen destruction. Three batches at 22,000 gal/batch over 90 minutes requires a flow rate of about 730 GPM. The pumps have been sized for 750 gpm. Headloss Calculations Friction loss along the pipe length is computed using the Darcy-Weisbach formula (Eq 1) which takes into account the viscosity of the fluid. AH - V2 D x 2g Friction losses through fittings are estimated using the velocity head equation AHff= K v2/2g Eq 1 Eq 2 The friction factor (f) in Equation 1 is dependent on the Reynold's number (Re) which is a function of the kinematic viscosity (v ), velocity (V) and pipe diameter (D). The Reynolds number is calculated according to the following equation £, = 7745.8 v ls) D(in) V (Ca) Eq 3 Water Technologies 6/19/2019 1 of 8 Q VEOIIA The Kinematic Viscosity is calculated from the specific gravity of the fluid (SG ) and the absolute viscosity ( µ ) P� S The friction factor (f ) is calculated according to either of the two following equations For Re <_ 2000, the flow is laminar and the friction factor is calculated according to 64 Re Eq 4 Eq 5 For Re >_ 4000, the flow is turbulent and the friction factor is calculated according to the Swamee-Jain equation 0.25 S 5.74 10910 - (�.7 � + Re0.9 Eq 6 For 2000 > Re < 4000, the flow is in the transition zone and the friction factor selected will be the greater of Equations 5 and 6. 6/19/2019 water Technologies 2of8 Q VEOIIA Due to the thixotropic property of sewage sludges, the viscosity is related to the shear rate. The figure below graphically7 summarizes apparent viscosity for thickened sewage sludge at increasing shear rate. Sludge in the range of 4% to 7% DS exhibits a viscosity in the range of 200 to 400 mP•sec (0) at shear rates of 20 to 60 s-1. A viscosity of 1000 mP•sec (0) is used in the calculations for the thickened sludge pumps pumping freshly thickened WAS, providing a safety factor of about 2. Digested sludge at thermophilic temps of 50 to 60 °C will exhibit a significantly lower viscosity. A viscosity of 300 mP•sec (0) is used for the transfer and ATAD discharge pumps. I00000 • upward 0 0 downward 0 10000 .. 0 15% �a 7 /° O 0 13% 10% 1000 6% .y 100 4% 2% 10 r..._ 1 10 100 shear rate (s-1 ) Relationship between shear rates and viscosities of the sludge with TS 2 — 15% (only results for' sludge 7 ' are shown) The simple shear rate is a function of pipe diameter and fluid velocity and is calculated according to the following equation 'Y=8V/d The calculations are summarized in the attached table. Eq 7 The thickened sludge and ATAD discharge pumps will be rated for TDH up to 42 feet (18 PSIG). For this TDH, the pump manufacturers estimates a brake horsepower requirement of 19.6 hp and the nameplate motor rating is 25 hp providing a 20% reserve. The transfer pump is rated for TDH up to 10 feet (4.3 PSIG). For this TDH, the pump manufacturers estimates a brake horsepower requirement of 9.7 hp and the nameplate motor rating is 15 hp providing a 50% reserve. Pump data sheets attached. Water Technologies 6/19/2019 3 of 8 Q VEOIIA Summary of Pump Sizing Calculations Parameter Thickened Sludge Pump ATAD Transfer Pump ATAD Discharge Pump Suction Discharge Suction Discharge Suction Discharge Flow (GPM) 750 750 750 750 750 750 pipe ID (in) 10.03 7.98 7.98 7.98 7.98 7.98 absolute viscosity (0) 1000 1000 300 300 300 300 specific gravity 1.03 1.03 1.03 1.03 1.03 1.03 pipe length (ft) 100 ISO 75 75 150 230 Relative roughness, E (ft) 0.00085 0.00085 0.00085 0.00085 0.00085 0.00085 Gravitational Constant (lb-ft/sz) 32.17 32.17 32.17 32.17 32.17 32.17 K Value QTY QTY QTY QTY QTY QTY inlet 0.5 1 1 1 outlet 1 1 1 1 elbows 0.3 6 9 4 4 7 9 Plug valves 0.3 2 2 2 2 2 2 Swing Check 2.5 1 1 1 Tee Branch 0.6 1 1 1 1 1 1 other Overall K 3.5 7.4 2.9 5.9 3.8 7.4 velocity (ft/s) 3.05 4.81 4.81 4.81 4.81 4.81 Simple shear rate,"Y (s-1), Eq 7 29 58 58 58 58 58 kinematic viscosity (c5t), Eq 4 971 971 291 291 291 291 Reynolds Number, Eq 3 244 306 1022 1022 1022 1022 Flow Regime Laminar Laminar Laminar Laminar Laminar Laminar Friction Factor, Eq 5 0.262 0.209 0.063 0.063 0.063 0.063 Friction Factor, Eq 6 0.130 0.115 0.067 0.067 0.067 0.067 Selected friction factor. f 0.262 0.209 0.063 0.063 0.063 0.063 AH fP Friction Losses Straight Pipe (ft), Eq 1 4.5 17.0 2.5 2.5 S.1 7.8 AH ff Friction Losses Fittings (ft), Eq 2 0.5 2.7 1.0 2.1 1.4 2.7 Suction inlet WLelevation (ft) 13.2 25.5 25.5 Discharge outlet WL Elevation (ft) 29.5 26.5 43.5 Static Head (ft) 16.3 1.0 28.0 Total Dynamic Head (ft) 41 9 3S NSPR Calcs Site elevation (ft) 19.0 19.0 19.0 Suction inlet WLelevation (ft) 13.2 25.5 25.5 Pump inlet elevation (ft) 11.7 19.6 11.7 Sludge Temp (°C) 25 70 70 Vapor Pressure (mm Hg) 23.7 233.2 233.2 Suction side Friction Losses (ft) 5.0 3.6 6.5 NPSR Available (ft) 29.3 25.8 30.9 NPSR Required (ft) 7.6 7.0 7.6 water Technologies 6/19/2019 4 of 8 Q VEOIIA Cu5bnler Number cur,bffw Nana ft!'n Q W Number rjyr-Pxi.w Nurtber NurnWrafPumps P,r*ng TeffwTxe �ty Density Lipid PH cllmide Conlav % 504d 5 solid NP51-4-Aualable NP.,WEgat44 k E&M Pr p Part Number Pile Made) uS' -ya,ofCCASI con t,ow TsK Housing5egtrren3+t Eral Housing -%mere; 30'azng Housing SEgrrerr. =dnn DreWM Of r-OW Rosary LACE fAalerilr Rotary Lobe CwWg Rosary Lobe Form Rolery,A* rtirlf'Aings 0-rSY'i, IJ�rlrr'ia Lip Seal weria ftx dale %IIera1 Oit Drain wre Bier OunCer Fluid "Speed FVM Rate 5nem(l Flow Jim ;Lw Mtn T0;r e Runnilg Tmgje RunniVPurw_ "Gewf jvoL nes Efidency jsar3l C -am Pw mre iugauaiarr NPSF-r Thickened Sludge and ATAD Discharge Pump Data Sheet (1/2) 101498 vcoa wafer Tears pies me VR'1 ruw 5n twAii, NC 105`IM5 4 149 'P not PwFOM riot Rovoad not Praroed rd Provoed 4 2i.?S fL 7b7 R Stine. 'h75* ACIw*a PRCCE55 0}VDffICINS Abrasion Abras%W*K (1-10(j 5u:6 l cor4hkxb Requestea Capacrf L'15CU7 Pressxe C'1 MTA Heat InWI Pmwure Nf wwtai Pw--si- AmlalCa;ac f bblor HP fk" 5eme % Rased POW Pu- Spee7 >�ad VolurrRY:'ic Efic€ency It static Tdgr Rralnig Tdrpe T4 htinve I IIOGELSA140 Aledium 3 • fie'AaREPz[ ,3led sll,Op Gref'AMer 0.0 R kojw T50 gpm 182 Psi 42 It 0.00 182 p9, re] Q gpm 1 or% 19ia BHP 353 RPM a1w% jags flJt?5. 35Q1 illtas. Nat Speofty P-i"`rr'E DLcPL0.CFrJENT PUIV INFJR1AKnON V%195 N26 HP+CC I� de zn:al 57I Tf;* =�Wrp 4x1t9o-F60Qp 6ldzrkal5c,1r eMectanralSal G" Cri Ira+ Sea Carver r%ilenal ILtO del Imleri3 5CC K M 9 1 313E SL3Mes5 5tW 'I" I'i O «L5 [r ef' fast "an; IM16 Q SOCK Ring: NY* MA6- 3 AieC =kZ115ea11 wint SaaigtR Ilaleria WTanimISea 12 Nape 5i-LweEiorra 7r.rl amrw mm_- al A1ra 5wel I z5ce Ii,Rd 51 '. 5r3JI Soft I1SM3. Gar an¢ed WICed PwV 5naff Tap nrotcr Sinn LOON Ow F! P"5naH5t" kuxf Stan 5ItR a Pury Lerglh 352 ira. Pa-WItArr 13faiTZ rNER P-rPvAgrt 3151ts r1 Kgr twar >:.e?R-Mnl =pECa] S*el Pump 5"R C1.7I VIv 85 n rn GOMM Pttnp Smart -31arrlew (Range] 60 frtr Hgn Temwalule Oil 50toe Pu v Srlatl Leng7) 53 i= W f.T,t nv n 5araR ©efenm O.CCt� ixxl Tian Geur ILf W C-ex 01 PEHHFgRtiW CE DATA Pump 'S HZ to t-M a7a Fz us 1C$ 2ir 359 PAf F 750 1I .2 516 710 9pm r 1? 9 13E.2 476.1 F1:.9 9Pm 3*1 M1 3"1 3B51 Kilos. $172 332c 3$01 i1.1d5 191 fay 13a 14.E BHP a1.4 51.E fSA 151.5 .;k 41.7 24.1 e05 Al.7 % 1 AS 63 0.8 1.51 psi 1A6 6-55 5-56 F.b1 4 6/19/2019 water Technologies 5of8 VEOLRA Thickened Sludge and ATAD Discharge Pump Data Sheet (2/2) i V'OGEL5ANG wToR oecmmnoN mmy 1u*r :ii16r FJKwc OxTarry Amperes 62" i W.-Oct Pad WIDE CU/41 U3T FU09 (AM . plJty' 40L Al, Gar*rl Ps pose TEFC Yes Norm-01 amdewy'% 9M Cgse l Div 161p a 7W pfk5e 3 C1w51 oiv Il apo w POW F3CW 81 IEEESar Cwnpfiut w Fts4-h Cr 60Hz hbjyy ng C-Face gwx -a hEMA Ns§rn 0 Ey 11MR? TEFC 5Cvice Facer 1.15 Frr-ne SLLE .84TC 5n;dl Oiamew 1M5kh CandLit elafnurng f1 5i►xllLenglh tjK5kh Poe d OMM Lcngln 2776 inch lnsuiTcr, CLF55 F VIMI-07COIl 1S_11 inch FW 25 FP vO-M rl 4w HIS RKI 1775 M1 MUIR - Add 5ba:e her Vot3ge �'' 46QV 1123A-AddTrer+.X}S.7ft5 r.MWCof INFORMA-RON f tarrauchrer 4WD GEX gyp. 5na+ Oemew 225 VMWPan Mrrber %52- &nww-461 3":E!!5N d C?ar RM "I O.eral Lenglh 2d35 Fr3,rc- 5ke Z!CTC OYJPJNIG nwlrM1ATION coupling kummza:rer TB'Ab axrping FLYSe n6ve 9K 16 Gauping -led a 5HS coupling =Lase P-M VRCOAM FLAVGE ODWGL%ATIM, FIro ?5iW dainnch F4y, F;ange Ty]e &W Retl ,aEaa--V rXx:rAne k Ln'-R Fm;e Pal Nu-m :;PAL 157 Fia'r, = arge Wwal Fkl Dpped w anFed REV La1l FLN6 r1pe lY U51EIe ra wraa-Q. Gomewk Mara mn FWSE Pal NlrV& VA LPII = L- Mwer7 *o 09PPEC C-Quanzed RM V3own vwSe Ai3*"A M Riot Farnge Pa17 4.vtw GPA 157 Canflylaadal RYA water Technologies 6/19/2019 6 of 8 Q VEOl1A ATAD Transfer Pump Data Sheet (1/2) C• ' J 118GELSANG PROCESS CONCITIONS Customer Number 101498 Abx,,,on Medium Customer Name Vedia Water Tedmofogies Inc. Ala asneress 11401 3 - like llrte Acte,aled Stidge, Cvey Nlater Pvect NorihEaM Bewm%sck, NC Svraian CCndlon 0.0 ft. flooded Quote Numbe• 1052M Regaexed C�oaady 750 gpm Quote Position Neuter 1 Cischarge Press we 4.5 psi Number of Pumps 2 Aschaep Head loft Ping Temperahre 150'F Irie; P-vssure 0.0 psi V=sity not Provided D*renfia ?ressur: 4.5 psi Density not Provided Actual Capacity 758.9 gpm Specft Gradty not Provided Vow- 4P Rssen-e % 10% Lqud PH 7 Rated ?cover 9.7 BHP CNoride Content not Provided Purr o Speed 319 RPM % Sokids 5 ?dated Vdwiiehic Efficiemy 4b 89.20% Solid Size 5tar4titg Torque 3714 it.lbs. NPSH4wailab(e 25.05 fi. R@urnng -o,que 1912 in.lbs. Near-Requo 6.97 ft. Tag Slumkw' Nat Specified Medium Sludge ilaste APzrv4d POSITVE CiSP',ACEVENT PUMP INFMvATO!i Pump Par[ Numwr Vf4186-26DL4Q Medranical Seal Type Cwirdge Pwnp Model VX185-25'Q Veolwir,.]t Seal Skye-Doub'e Shge Meehanica Seal Material of Conssnw, ion Grey Cast Iron Seal Carrier Material Mild Steel Cover ype Mate %a 91udk Fang 1 304 Stairiess Steel 414301) Housing SeVert h431arial 116025 (Grey Cast Iron} Mate l Bic& Fang 2 None Housing Segmert Coatirg Name Vats -^ix Vectarca{ Sea(1 Dwarf Housing Segnert Form Shaghl Mats Vect,ar:oal Seal 2 None D►eckn of Row Bi-DmeeiDnal Thnrst VOSPef Material Mild Steel Rotary Labe Material 10503 (Mid Steer) Strain Ball Malerid Gilvarr¢ed Rotary Labe Coa nq Wrdeci Pump Shall Top Maim Shaft Long 060 Rotary Labe Form FkRoo Pump Shad) Bottom Maim shaft sh rt Rotary Labe # ofWt ings 4 Pump Lenglh 31.5 ix h (1-Rng Material NBR Pump VULS 13.0 inch Lip Seal'Vateial HNBR Pump Vk#d 280 lbs Vkar PLife Material Huh Wee- Resistmt Special Skw Pump ShA Diameter 85 mm Vkar PLM Cov.*% Gaharfz?d Pump Shalt Diameter {Flanged 60 mm Oil Battle 1-* Or 80'ile Pump Shal Length 5.5 nch Drain Hose No Va&r um Shot Deflector• 0.0016 inch Buffer Chamber Fluid TAam Gear MP90 Gear Od PERFORMANCE DATA Pump 20 Hz 40 Hz 58'Hz Pump Speed 116 110 220 319 RPM Flow Rate (new] 7 50 207.9 497.9 758.9 Wn Flow Rale (used) 7318 187.9 478.9 740.7 w n Starting Torque 3T14 3714 3714 3714 n.lbs. RurrzgTorque 19M 1639 1750 1312 111.1111s. Runr,ng Power 9.5 2-9 6.1 9.7 BHP Efticiency(Vorume) 89.1 70.9 84.9 89.2 % Efficiency (Tatal) 20.6 19.1 21.4 243.6 % Dyrum'r. Fre• wre R?dx+ on 1.21 015 059 123 psi NPSH'-r 6.91 6.56 6-56 6.F7 ft Water Technologies 6/19/2019 7 of 8 Qp VEOUA ATAD Transfer Pump Data Sheet (2/2) Mandachwer Eakio, EIeaicConpany SleuW PM Nwnber CEM23337 Geneal Purpose TEFC Yes Class I Diu Grp D No Class I Diu Grp D No IEEED41 Corplort No Mcurzog C-Fate F=ed Enclosure TEFL Frame Size 25. 4TC CMIMt Box Mountm F1 Poi--. 4 Insuixicn Class F HP 15 HP RPM 1755 RPV vNtage ZKA60 v Manubaxer NORD42eo�Corp. Ver ice Part timer SK42.25rC-5.35 Gear Ratio 535 Frame Size 25M C,*rg Man6fa7ure- TB Wbuds CcupogSlit 9HS Flange Sine &0 imb Left Flange Par( Nwnber GPAL157 Left Flarge —ype M4 .axe Ga v3r2ed, r5omerezk Left Flarye Matenai Hot Dpped Gavarced 5" R41 tFlange Part Nimber GPA157 j VOGELSANG MOTOR rVORMATI0N ArT—q! 36.2118-1 A Rating (Amb. + pe;y1 40C AM3_00NT Nomns Elrraiency% 9124 tease 3 Pt%*r Famr 83 F,"w-ncy 60 Hz NEMADmr B Ser+ice Facbar 1.15 %I ft Diameter 1.525 inch Shaft .erglh 3.75 irwh Ove a �engti+ 2178 inch 1 twh (- Conduit] 10.04 inch Vf-s 269 Ibs L421A -Add Space Heate- V23A -Add Thermossas GEARBOX INFO.RAIATICA ShA Obmeter 1.875 SKA Lerglh 3-5 Ove a Leng* 21M COLPL43 INFORMATION Cowping Flange Drive 95178 Coupling Flange Pump 9SMIM FIAh'SE COSTIGURAT ON Right Far3e'ype NMI Sk--1 63Namized. 3eosem* Right FvW Materal Hol00*4 Wlvaniud Swel 4arathm Flange Part Nwrlw NA Manthm Flange Max6al MA Vanthm Flange Configur3ov NA Water Technologies 6/19/2019 8 of 8 Truck Loading Solids Pumps Truck loading solids handling pumps are positive displacement type solids handling pumps. Therefore, the pump curves provide a consistent flow rate regardless of system head. System curves therefore have not been prepared for this type of pump as system head does not significantly impact operating flow rate. £ \ ] 7 / ƒ � 2 § § m ]cc aj f � 0 j # » i 2 \ » ) f § \1 f om cc9oow Ln ƒ �6�0��� � [ § .0al R ] - - tom 14 � { Ln2QG§2m § §m m 2 > },E �j) 431 5 \ a ]mf § ;!2 ) 0,> « t22 s o � } §0.04-ee u % $ moo �0C q § i ad f a 6 u VI - m ° 2 ze \ E \ \ j 2% / j\ // e e �m� mm v\fn 0 0 C3 e c to r § �f § m / -12 c § k ) k \ \ \ / } ° j I $ 2 E ! © ® \ `k ) , E & 7 \j \kw k #ƒ sQ Q E _4-1«41-� MLn CrLn Buoyancy Calculations DESIGN CALCULATIONS FOR BELOW GRADE STRUCTURE BUOYANCY CHECKS Prepared for BRUNSWICK COUNTY, NORTH CAROLINA PUBLIC UTILITIES DEPARTMENT P.O. BOX 249 BOLIVIA, NORTH CAROLINA 28422-0249 Z Prepared By McKIM & CREED, INC. 1730 VARSITY DRIVE, VENTURE IV BLDG., SUITE 500 RALEIGH, NORTH CAROLINA 27606 Phone: 919-233-8091 (McKim & Creed Job # 0069-0047) �WKIM&CREED Basis of DeyIgn Basic Unit Weights Water= 0.062 kip/ft3 Concrete= OAS kip/ft3 Soil = 0.11 kip/ft3 Weight Calculation Procedure Rectangular Wall Weight Total Wall Length, L= 2X+2Y Volume= LxD%Thk Weight = Volume x Unit Weight Rectangular Slab Weight Volume= LxDxThk. Weight = Volume x Unit Weight Rectangular Area Soil Weight Total Wall Length, L= 2X+2Y Volume = L x D x Thk. Weight= Volume x Unit Weight Wedge Area Soil Weight Thk. = D/3 Total Wall Length, L= 2X+2Y Volume = L x D x Thk. / 2 Weight = Volume x Unit Weight s Project Name NE Brunswick Regional WRF 2.5 MGD Facility Expansion Project No. 0069-0047 Sheet 1 of 19 By DAR Checked By WFB Date 06/14/19 &MWIM&CREED Circular Wall Weight Total Wall Length, L= 2nR Volume = L x D x Thk. Weight=Volume x Unit Weight Circular Slab Weight Area = (n/4)(Do2-Di2) Volume = Area x D Weight = Volume x Unit Weight Circular Area Soil Weight Total Wall Length, L = 2nR Volume = L x D x Thk. Weight = Volume x Unit Weight Wedge Area Soil Weight Thk. = D/3 Total Wall Length, L= 2nR Volume = L x D x Thk. / 2 Weight = Volume x Unit Weight Buoyancy Force EI Project Name NE Brunswick Regional WRF 2 5 MGD Facility Expansion Project No. 0069-0047 Sheet 2 of 19 By DAR Checked By WFB Date 06/14/19 Thk. V = Displaced Volume by Section of structure below grade Fb = Water Unit Weight x Volume Note: Calculations are conservative by considering water level at grade elevation Safety Factor Factor of Safety = i Structure+ E Soil Weight >_ 1.5 Buoyancy Force tee1Y1' IU VL&CRGGQ Buoyancy Calculation SOS.O Grit Pump Vault Structure & Soil Weight Component Wt. (k/ft3) L(ft.) D (ft.) Thk. (ft.) Weight (K) Bottom Slab 0.15 10.00 8.00 067 8.00 Top Slab 0.15 9.00 7.00 0.50 4.73 Walls OAS 30.00 6.50 0.50 14.63 Equip. Pad 0.15 1.92 2.83 0.50 0.41 Rect. Soil Weight 0.11 34.00 6.50 0.50 12.16 Wedge Soil Weight 0.11 4467 6.50 2.17 69.20 Project Name NE Brunswick Regional WRF 2.5 MGD Facility Expansion Project No. 0069-0047 Sheet 3 of 19 By DAR Checked By WFB Date 06/14/19 ( Total I 109.111 10'-0" _ 9'-0" _ ` 1'-11" 00 I I C\' Displaced Volume Isection I L(ft.) I W(ft.) I H (ft.) I V (ft.,) Sub. Section 1 9.00 1 7.00 _ 6.50 1 409.50 Total 409.50 Buoyancy force = 25 6 k Factor of Safety = 4.27 OK Note: - Sump weight not included * {( 77� Project Name NE Bfunswick Regional WRF IS MGO Facility Expansion M / \ +1% IGM[, CREED Project No. 0069-0047 Sheet 4 of 19 ' By DAR Checked By WFB Date 06/14/19 SO5.0 Headcell: Structure & Soil WciKht Component Wt (k/ft') L(ft ) D (ft.) Thk (ft.) Weight (K) Bottom Slab OAS 16.67 16.67 1.33 55.56 Top Slab 0.15 6.00 16,00 1.00 14.40 To" 16" wall. 015 5333 7.67 1.33 8178 "Lo" 12" wall_ 0.15 12.00 10.27 1.00 18.49 "Lo" 12" wall. 0.15 40.00 16.19 1.00 97.13 "Hi" 12" wall. 0.15 2200 8.00 100 26407 Btm. Slab Top Soil 0.11 33.33 23.85 1.00 87.47 Btm. Slab Top Soil 0.11 14.67 1485 100 23.96 Btm. Slab Top SO 0.11 1467 7,67 100 1237 Top. Slab Top Soil 0.11 2600 1.00 200 5.72 Btm. Slab Wedge Soil Weight 0.11 57.24 17.55 5.95 665.99 Top. Slab Wedge Soil Weight Oil 2667 2 00 0 67 391 Total I1,096.17 Plan View Displaced Volume :Section L(ft.) W(ft.) H (ft) V (ft.,) 14" wall tank 13.33 13.33 7.67 1,362.96 12" wall tank 14.00 14.00 1 10.19 1 1.996.75 1 12" wall tank 14.00 5.00 2.00 14O 00 Buoyancy force = 218.4 k Factor of Safety = 5.02 OK Note: Grout weight no included Section Total 3,499.71 WKIM&CREED SOS.O Screens: Stnidure R. Snil Weight Component Wt. (k/ft') Lift.) D (ft.) Thk. (ft.) Weight (K) "Lo" Slab 0.15 48.1 30.0 1.0 216.59 "Hi" Slab ls Channels 015 31 6 26.0 1 0 12332 "Hi" Slab @ Infl. Channel 0.15 26.0 5.3 1.0 2048 "Lo" Fill Channels 011 31.6 10.0 2.9 301.56 "Lo" Fill @ Infl Channel Oil 5.3 260 29 43.84 Extr. 12" Wall 9' ht. 015 196.3 8.9 10 262.58 Intr 8" Wall 4' ht. 0.15 1898 40 0.7 76.25 "Hi" Fill @ Channel Wall Oil 31.6 10.0 40 139 13 Tap Slab rs Corners 015 21.0 13.7 10 4309 Top Slab ls Channels 0.15 58.5 240 1.0 210.60 Top Slab Between Channels 0.15 31.6 100 1 0 4743 Rect Soil Weighl 0.11 1523 2.4 1 0 4047 Wedge Soil Weigh l 0.11 159.5 2.4 08 1707 Project Name NE Brunswick Regional WRF 2.5 MGD Facility Expansion Project No. 0069-0047 Sheet 5 of 19 By DAR Checked By WFB Date 06/14/19 ( lotal( 1,34245 I-r �. 31'-7 i/:' (raP sUMxrvP. q W-io t/T' (Lm sLm) Oicnlxrad Volume Section I L(ft.) W(ft.) H (ft.) I V (ft') Tank Section Below Grade 46 1 28.0 2.4 3,121 13 Total 3,12113 Buoyancy force = 194.8 k Factor of Safety - 6.89 OK r-� 1 Project Name NE Brunswick Regional WRF 2.5 MGD Facility Expansion Project No. 0069-0047 Sheet 6 of 19 By DAR Checked By WFB Date 06/14/19 510.0 Equalization Basin Pump Station Structure & Snil VJMvhr Component Wt. (k/fO) L(ft.) D (ft.) Thk. (ft.) Weight (K) Bottom Slab 0.15 36.7 23.7 1.8 238.69 Low 22" Wall 0.15 105.3 9.0 1.8 260.22 High 14" Wall 0.15 102.7 9.0 1.2 162.17 Top Slab 0.15 313 20.3 1.0 10164 Top Slab Hatch -0.15 12.0 6.0 1.0 (10 801 IBtm. Slab Top Soil 0.11 11667 9.00 1.00 115.50 IBtm. Slab Top Soil 0.11 114.00 9.00 1,67 18810 Wedge Sol! Weighl 0.11 145,3 18.5 6.2 911.99 Grout Weight 0.11 5.8 18.0 6.0 3465 Grout Weight 0.11 8.2 18.0 6.0 48.51 Grout Padl 0.11 1 13.2 4.3 1 0.6 1 3.79 I otall 2,D54.46 Disnlacod Vnlumn Section L(ft) W(ft.) H (ft.) V (ft.) 22" Tank Below Grade 34.7 21.7 9.0 6,760.00 14" Tank Below Grade 33.3 20.3 9.5 6,438.89 Buoyancy force = 823.6 k Factor of Safety = 2.49 OK Total( 13,198.89 ( MgGM&CREED S10.0 Precast Valve Vault Structure R Snil Wnivhe Project Name NE Brunswick Regional WRF 2 5 MGD Facility Expansion Project No. 0069-0047 Sheet 7 of 19 By DAR Checked By WFB Date 06/14/19 Component Wt (k/ft) L(ft.) D (ft.) Thk. (ft.) Weight (k) Bottom Slab 0.15 19.0 120 0.5 17.10 Top Slab 0.15 17.0 10.0 0.5 12.75 Top Slab Openings 0.15 16.0 7.0 0.5 (8 40) Walls 0.15 52.0 7.5 0.5 29.25 Rect. Soil Weight 0.11 58.00 7.50 1.00 47.85 Wedge Soil Weight 0.11 72.00 7.50 2.50 148.50 ( lotalI 247.05 Displaced Volume Section L(ft.) W(ft) H (ft.) V (ft.') Sub. TankJ 17.0 1 10.0 1 7.5 1.275.00 Total 1.275.00 Buoyancy force = 79.6 k Factor of Safety = 3.11 ON 19,-0" 17'-0" 16'-0" 4'-0' 4'-0" 4'-0" `�* W KIM &CRD 510.0 Precast Meter Vault Structure & Soil Weight Component Wt. (k/ft3) L(ft.) D (ft.) Thk. (ft) Weight (K) Bottom Slab 0.15 11.0 10.0 0.5 8.25 Top Slab 0.15 9.0 8.0 0.5 540 Top Slab Openings -0 15 5.0 5.0 0.5 (1.88) Walls 0.15 32.0 7.5 05 18.00 Rect. Soil Weight 0.11 1 38.00 7.50 1.00 31.35 Wedge Soil Weight 0.11 52.00 7.50 2.50 107.25 Total 168.38 Project Name NE Brunswick Regional WRF 2.5 MGD Facility Expansion Project No. 0069-0047 Sheet 8 of 19 By DAR Checked By WFB Date 06/14/19 Displaced Volume Section L(ft.) I W(ft.) I H (ft.) I V (ft.') Sub. Tank 9.0 8.0 7.5 540.00 Total 540 00 Buoyancy force = 33 7 k Factor of Safety = 5.00 OK Note: - Grout weight not included Project Name NE Brunswick Regional WRF 2.5 MGD Facility Expansion Project No. 0069-0047 Sheet 9 of 19 By DAR Checked By WFB Date 06/14/19 525.0 Bionedipho Ditches Structure & Soil We(uht Component Wt. (k/ft) Area (62) Thk. (ft,) Weight (K) Bottom Slab 0.15 20228.8 2.2 6,574.35 Rect. Soil Weight 0,11 1505,3 7.8 1,283,26 Wedge Soil Weight 0.11 1727.5 7.8 736,36 Component (Unit weight Qft.) D (ft.) thk. (ft.) Weight (K) 14"Wans 0.15 871.8 20.5 1.2 3,127.63 12" Walls 0.15 208.1 20.5 1.0 639.98 12" Walls 0.15 BU 8.3 1.0 106.43 12" Weir Wans 0.15 48A 3.5 1.0 25.27 12" Weir Walls 0.15 49.0 6.3 1.0 45.94 10" Walls 0.15 360.2 20.5 0.8 922.93 Top Slab 0.15 1 02.9 4.0 1.0 121.71 Weir Bottom Slab 0.15 48.1 4.8 1 1.0 34.89 Weir Bottom Slab 0,15 38.3 3.8 1,0 22.04 4 Disolaced Volume Section AM) H (ft,) V (ft.') Submerged Structure 18723.5 7.8 145,107 Total 145,107 Totall 13,640.79 j - a.i a 1•p `� �. •_• _ �i -_ }•u •.' +•t� � t Buoyancy force = 9054.7 k Factor of Safety = 1.51 OK MW M&CREED 530.0 Secondary Clarifiers Structure H. Soil Weight {each] Component Wt. (k/ft) L(ft.) D (ft.) Thk. (ft.) Weight (K) Walls 0.15 210.5 14.7 1.0 463.56 Edge Channel Wall 0.15 226.2 3.3 1.0 112.57 Edge Channel 0.15 226.2 2.5 1.0 84.82 Btm. Rect. Soil Weighl 0.11 228.3 10.7 2.8 758.93 Wedge. Sail Weigh] 0.11 250.6 10.7 3.6 52279 Rect. Soil Weighl 0.11 44.0 8.2 2.0 79.02 Wedge. Soil 0.11 61.1 8.2 2.7 74.69 Weight Component Wt. (k/ft') Do(ft.) Di(ft.) D(ft.) Weight (K) Grout Weight 0.10 65.0 0.0 0.2 55.31 Btm. Slab Thickened Section 0.15 71.0 47.0 2.0 667.27 Btm. Slab 0.15 47.0 10.0 1.5 372.69 Center Pier, 0.15 10.0 0.0 9.0 106.03 Center Pier Fig. 0.15 14.0 0.0 1.0 23 09 ITotal ( 3,320.79 J Project Name NE Brunswick Project No. 0069-0047 By DAR Regional WRF 2.5 MGD Facility Expansion Sheet 10 of 19 Checked By WFB Date 06/14/19 Olso}aced Volume feach] Do (ft.) Di (ft.) h. (ft,) V (ft.3) rSeion bmergedk Section 65.0 0.0 10.7 35,395.28 'Total 35,395.28 Buoyancy force = 2208.7 k Factor of Safety = 1.50 OK Z M�'KiM CREEL? 530.0 Scum Pump Station Structure & Soil WelRht (eachl Component Wt. (k/ft') Do(ft.) Di (ft.) H. (ft.) Weight (K) Walls 0.15 9.0 8.0 11.0 22.03 Top Slab 0.15 9.0 0.0 0.5 4.77 Bottom Slab 0.15 10.0 0.0 0.5 599 Rect. Soil Weight 0.11 10.0 9.0 11.0 18.06 Wedge. Soil Weighl 0.11 1 13.7 10.0 11.0 4123 ITotal ) 91.98 f a._0., Project Name NE Brunswick Regional WRF 2.5 MGD Facility Expansion Project No. 0069-0047 By DAR Checked By WFB DISplaced Volume (eachl Sheet 11 of 19 Date 06/14/19 Section Do (ft.) Di (ft.) h. (ft.) V (ft.') Submerged Tank Section 9.0 0.0 11 0 699.79 Totall 700 Buoyancy force = 43.7 k Factor of Safety = 2.11 ON 91-01, w MCKMA&CREED 535.0 Tertiary Filters Str—turn R coil wntvht Project Name NE Brunswick FRegionel WRF 2 5 MGD Facility Expansion Project No. 0069-0047 Sheet 12 of 19 By DAR Checked By WFB Date 06/14/19 Component Wt. Wit) L(ft.) D (ft.) Thk. (ft.) Weight (K) Bottom Slab 0.15 39.5 39.5 1.2 273.04 Walls 0.15 142.0 5.3 1.0 111.93 Equip Pad 0.15 22.3 30.0 1,0 100.50 RecL Soll Welghl 0.15 152.0 4.8 2.0 216,60 Wedge Sail Weight 015 1523 48 1 1.6 1 17185 Total 1 87382 W-e a-o• M -r Disolaced Volume ion L(ft.) W(ft.) H (ft.) V (ft.') ubmerged LS Tank 365 36.5 4.8 6,329,19 Total 6,32&19 Buoyancy Force = 394 9 k Factor of Safety = 2.21 OK ;o 0 r n 46 *4izol 1 1V1V1C7 L1\L]GD 540.O Ultraviolet (UV) Structure 8, Soil VVeivht t Component Wt. (k/ft3) L(ft.) D (ft.) Thk. (ft.) Weight (K) Bottom Slab 015 33.8 22.5 1.2 132.89 Top Slab 0.15 9.0 22.5 1.0 30.38 Top Slab 0.15 8.8 22.5 1.0 29.81 9 5'H Walls 0.15 59.2 9.5 1.0 84.31 4.7'H Walls OAS 163.0 4.7 1.0 114.13 Column Piet 0.15 10.0 1 4.7 2.5 17.50 Column Pier 0.15 6.0 4.7 5.0 21.00 Top Slab Between Channels 0.15 48.0 3.0 1.0 2160 Sand Fill Between Channels 0.11 48.0 3.0 3.7 58.08 Rect. Soil Weighl 0.11 53.5 9.0 1.0 52.97 Rect, Soil Weighl 0.11 11.7 9.0 1.8 20.21 Rect. Soil Weighl 0.11 53.7 42 1,8 43.05 Rect. Soil Weighl 0,11 13,8 4.2 1.0 6.34 Wedge Soil Weight 9'H 0.11 92.7 9.0 3.0 137,61 Wedge Soil Weight 4.2'H Oil 59.5 42 1.4 18.94 (Total ( 789.811 Project Name NE Brunswick Regional WRF 2.5 MGD Facility Expansion Project No. 0069-0047 Sheet 13 of 19 By DAR Checked By WFB Date 06/14/19 Dicolaced Volume :Section L(ft.) W(ft) H (ft.) V (ft') Sub. TankI 20.5 6.0 9.0 1,10700 Sub. Tank 33 8 19 0 4.2 2,671 88 Total 3,77888 Buoyancy force = 235.8 k Factor of Safety = 3.35 OK I bt r,� t I t Cl ❑ I y 24'-a' y i K W-r 4r-r �NVKM&QED 545.0 Cascade Aerator Structure & Soil Welaht Project Name NE Brunswick Regional WRF 2.5 MGD Facility Expansion Project No. 0069-0047 Sheet 14 of 19 By DAR Checked By WFB Date 06/14/19 Component Wt (k/ft3) L(ft.) D (ft.) Thk. (ft.) Weight (K) Bottom Slab O.1S 25.5 13.5 1.5 77.46 Top Slab 0.15 7.5 10.5 1 3 15.75 24" Walls 015 51.5 10.5 20 16223 24" Walls US 9.2 10.5 2.0 28.98 12" Walls 0,15 67.0 10,3 1.0 103_95 Baf0e Wall 0.15 2.0 3.1 0.5 0.46 Steps 0.15 8.4 6.5 05 2,05 #57 Stone Fill 0.11 12,0 8.3 6.5 35.75 Rect. Soil Weigh[ 0.11 61.5 10.5 1.5 106.55 Rect, Soil Weigh[ 0.11 10.5 9.2 1.5 15M Rect Soil Weigh[ 0_11 73_0 9.3 1.0 7495 Wedge Soil Weighil 011 1 78.0 19.8 66 562.51 [Total 1 1.18630 1 Displaced Volume Section Lift.) W(ft.) H (ft.) V (ft 3) Top Slab 7.5 10.5 1.3 105.00 Sub Section ion 270 85 9.3 2,142.00 Sub Section Section 22.5 105 10.5 2,48063 Total 4,727.63 Buoyancy force = 295.0 k Factor of Safety = 4.02 OK 0 I 1 I ! i I I I I I � m i o to t M 0 I N ze--Ir � NMCI M&CREED 550.0 Effluent Pump Station Structure & Soil Wp4ht Component Wt. (k/ft') Lift.) D (ft) Thk. (ft.) I Weight (K) Bottom Slab 0.15 22.3 20.3 2,0 136.23 Wall 0.15 70.7 33.8 1.7 596.25 Top Slab 0.15 20.3 18.3 1.0 55.92 Rect, Soil Weight 0.11 81.3 34.3 1.0 306.42 Wedge Soil Weight 0.11 131.0 34,3 11.4 2,817.31 Total 1 3,912.13 Plan View Project Name NE Brunswick Regional WRF 2 5 MGD Facility Expansion Project No. 0069-0047 Sheet 15 of 19 By DAR Checked By WFB Date 06/14/19 Displaced Volume Section I L(ft.) I W(ft.) I H (ft.) V (ft.) Sub. lanki 18.3 1 20.3 1 34.3 12,767.64 Total 12,767,64 Buoyancy force = 796 7 k Factor of Safety = 4.91 OK Section View t`*%jiVl`l<_1_LVlC7 L.R GLJ 550.0 Precast Valve Vault Structure & Soil Weight Project Name NE Brunswick Regional WRF 2 5 MGD Facility Expansion Project No. 0069-0047 Sheet 16 of 19 By DAR Checked By WFB Date O6/14/19 Component Wt. (k/ft,) L(ft.) D (ft.) Thk. (ft) Weight1K) Bottom Slab 0.15 16.0 9.0 0.5 1080 Top Slab 0.15 15.0 8.0 0.5 9.00 Top Slab Openin s -0 15 12.0 5.0 0.5 (4 50) Walls 0-15 44.0 75 0.5 2475 Rect. Soil Wei ht 0.11 1 48.00 7.50 0.50 1980 Wedge Soil Weight 0.11 6000 7.50 2 50 123.75 ! Totall 183.601 u ,_e. IV-Ir I-e-Or ----____--------------- i I I ___ ---- U r--Ell atsplaced Volume :Section I L(ft) W(ft.) H (ft,) V (ft 3) Sub_ Tankl 150 8.0 7.5 900.00 Total 900.00 Buoyancy force = 56.2 k Factor of Safety = 3.27 OK Note: - Grout weight not included Project Name NE Brunswick Regional WRF 2.5 MGD Facility Expansion V NMM&CREED Project No. 0069-0047 Sheet 17 of 19 By DAR Checked By WFB Date 06/14/19 550.0 Precast Meter Vault Structure & Soil Weight Component Wt (k/ft') L(ft ) D (ft.) Thk. (ft) Weight (K) Bottom Slab 0.15 10.0 10.0 0.5 7.50 Tao Slab 0.15 90 9.0 0.5 6.08 Top Slab Ooeninas 015 5.0 50 0.5 (1 88) Walls 0.15 34.0 7,0 0.5 17.85 Rect Soil Weight 0.11 38.00 7.50 050 15.68 Wedge Soil Weight 0.11 5000 7.50 250 103.13 Total 148.35 L--------._---J Displaced Volume :Section I L(ft.) J W(ft) H (ft.) I V (ft, I Sub. Tank 10.0 10.0 7.5 750.00 Total 750.00 Buoyancy force = 46.8 k Factor of Safety = 3.17 OK Note; - Grout weight not included 4 Project Name NE Brunswick Regional WRF 2.5 MGD Facility Expansion MciUM FCkE+D Project No. 0069-0047 Sheet 18 of 19 V By DAR Checked By WFB Date 06/14/19 560.0 Pre-ATAD Thickening Facility Structure & Soil Weight Component Wt. (k/ft) L(ft.) D (ft.) Thk. (ft-) Weight (K) Bottom Slab 0.15 33.4 31.5 1.5 236.84 Walls 0.15 117.8 13.5 1.3 31815 Top Slab 0.15 31 4 29.5 1.0 139.02 Rect. Sol Weighl 0.11 125.8 7.5 a 103.81 Wedge Soil Weight 0.11 139.8 75 2.5 144.20 Displaced Volume Section J L(ft.) W(ft.) I H (ft.) V (ft.') Sub. TanRJ 31.4 1 29.5 1 7.5 6,95094 Total 6,950.94 Buoyancy force = Total [ 942.03 j Factor of Safety = 433 7 k 2.17 OK 4�NVKHW&CREED 565.0 Pre-ATAD Pump Station Structure & Soil Weight Project Name NE Brunswick Project No. 0069-0047 Component Wt. (k/ft') L(ft,) D (ft.) Thk. (ft.) Weight (K) Bottom Slab 0.15 35,7 33.7 1.3 240.16 Walls 0.15 122.7 10.0 110 184.00 Columns 0.15 40.0 1.0 1.3 800 Columns 0.15 20.0 2.0 1.3 800 Equip Pad OAS 20.0 2.8 1.0 8 25 Recl Sail Weight 0 11 132.7 9.5r�� 207.96 Wedge SoilWeighl 0.11 151.3 9.5 250,39 Total 906.75 35'-8" By DAR WRF 2.5 MGD Facility Expansion Checked By WFB Sheet 19 of 19 Date 06/14/19 Displaced Volume Section I L(ft.) W(ft.) H (ft) V (ft.3) Sub.Tankl 30.7 32.7 9.5 9,516.89 Total 9,516.89 Buoyancy Force = 593.9 k Factor of Safety = 1.53 OK Auxiliary Power Calculations G a Bs2 pg 'a o o 011 boo— O n 88888p 8888fi8 ri MOIR g a 11 ota - 2 RIME W.0 wml o u �' o o Y _ o S O y 0 oul a n� 8 8$E$di 2md�� r_ s' ss �L`�] he FFIF �yySSllif{f{{'. :a a a R j J '. 3g� = i S gam5C a 0 o z a Nye Y ��'. � c Y "�a "� .�FJ ,yd xl ��iqf �:1 �•" Ra m`. pp qq 5j g pA pp Q Q 5� p rr py k- 'oa — zoa 8 A.• as % - $38 E8mg .� 88 Aar 1 8a1 8� a8 +9 $ $� a8 �jd 88 nw w G 5 a - IM `a 0 u z § m $Ro sa �o$ aoA oa lea iAa 8b3 8tl !�adSA � W s Y o x u u - 0 0; a $ $ d $9 § $ RSi 88 Si 9R gS z gggg o gggg gg gggg gggggg gg gg ggqqg gg gggg gg g 0 g pp a a 3� ix �E �uii _Fci3 pW 805d 3 6� x �� 0� �r �.. �aa• k�nc+ �� fls d� �� �g 8�a I oum mom s,ofvn 8 e8 :e.ex 888 $888.R 88 gg � y «'n.. e+.. 4r ga .R vdde 'di � vdpe xem .d.p e d pp tl d g8888 88 8$8$$ '596 88 88 8 a22�e2 ee w S s i sm � S u5p Y x pi 2 i r g x i s �I g R Ogg 0 a g t R §41% p '1,1918 ¢ $ 8B..88888 8 —4= na Boa x$ „dn z zx e'� hee .a 0 44 O R M gig a w v � ��w 5�y�7�55 S "i pp tl� �` n �n'ir« � �p5 i .°. �X � a �. �.. a a «� c G o V > �'� dg �� o«I �ryNd � �� 5T3 ��� � �� •��' �x�[A �� �o�omn�'d�m d — qa aM ei« a :JJ :J1 n❑ p 10s gg o ? W U Y r c d o ° P 0 A � 8 B SSRA 8 888 86 888 g gg8 }� 888 RSiB$St3iS5t a z 0 r224�r22c� r7� 4 q 0 RR 51A Rg R� a ! %�I 99 I 251 N R GiR $9 lilt QRR� MAR R z o ' A g3R a "s ax°sT 199 cllp YcY F ogrx S� Ev 5 ryesa fig$ .i 5 S m zo�sggaai �i N Zoe �avv q 2'2 a$a3u -N 96.fx - �dC�a `x ao nOo ` \ - ; "|qua §�§§; 7] §m ) ) MUM § § )(\§( |\ # i n:■a� ;n � ;l;=. \ /§)/ \) | | | |§mm§ |! ||BMW $8 ■ ! §■§§■ ■■ © ( |!§I| «| Min ;2 �k§|| �� ■ ) ))2!| |! | ! I ¥I227 |2 O m ..yy n vsj i$� 1 sN 4 L4 Q — = a a s go,d d - go e9bPeGc�1Og4 q Geepp Hqq � G _ 3 �C �d' "•��� rva ryN iS �R ��K���FKeq�i .� '� � � �6gC .�.aao cCldAgeeq �$!r isoQ a — 15. ss qQg s�clEm ggg�v� M. +! 8 lm� N; nx yy .». a � � .. N nI w Z axR2 ry nlq .y a 5 C ems= 'a ""{.. .l .iN ... v Z �� oQdee d�e a �o3e �e 3e�6d �a p caododv dLLJ d W U r' ak Id o ° a ass.a$�gs�ssas mmMMMMMMM Mnmm � � o gggs gggg ggggggg gggggg gggg ggg oa RM I 05F c° 0 0 p 7$ 5 5 z zgLia $ 0 g rxS i 3 ^ % iif S yaSa c =x 1$x •; a a oon apr�o a g agpQgqpQdtl✓7tl❑ C� F-R-1 ¢a 1.1 Residuals Management Plan A. Screenings - Headworks Drum Screens — The facility expansion will include construction of a new headworks to replace the existing headworks with new drum screens for removal of larger solids/screenings. The drum screens will provide for an improved solids capture ratio compared to the existing mechanical bar screen at the existing headworks structure. This will improve capturing of larger materials which can cause performance issues with downstream equipment. Drum screens will be equipped with a wash ing/compaction/dewatering zone to wash and remove liquid from the screenings. Washed and dewatered screenings will be dropped into a conveyor and transported to a dumpster for capture. All screenings will be transported by truck on a regular basis to the landfill for final disposal. B. Grit Removal - Headworks Headcell Unit and Gritcleanse Unit — The new headworks will include the addition of a Headcell unit for improved grit capture rates compared to the existing aerated grit chamber. With the higher capture rate of particulate materials occurring by the Headcell unit, a GritCleanse unit is also being provided to provide a high level of organics recovery. Grit is pumped from the bottom of the Headcell unit via a grit slurry pump and into the GritCleanse unit. Organics are washed from the grit and returned to the system via a gravity drain system. Grit is conveyed and dewatered from the GritCleanse unit and dropped into a dumpster for collection. Grit will be transported by truck to the landfill on a regular basis for final disposal. C. Biosolids — Rotary Drum Thickening, ATAD Digestion, Storage and Disposal — The 2.5 MGD facility expansion shall include dedicated biosolids treatment, volume reduction and storage for the anticipated volume of biosolids to be produced at the facility's design load conditions. WAS will be wasted from the oxidation ditch system via the common RAS/WAS pumps which pull settled solids from the bottom of the secondary clarifiers. When WAS is to be wasted, control valves will open to divert flow from the RAS force main at the pump discharge to the new Rotary Drum Thickeners. WAS flow will be conditioned with polymer to improve dewatering characteristics and be thickened using Rotary Drum Thickeners. Thickened WAS will be stored in a thickened WAS storage vault below the thickening building. Thickened WAS will be conveyed with a system of two Thickened WAS transfer pumps to either of two Autothermal Thermophilic Aerobic Digestion (ATAD) reactors. The ATAD process will treat the thickened WAS to meet Class A standards for final land application. Digested biosolids are pumped out of the ATAD reactors and into two covered digested biosolids storage tanks via two transfer pumps. The storage tanks provide 60 days of available storage (see attached calculations) for the biosolids to be produced at design operating conditions. Biosolids are kept mixed and aerated to minimize the formation of odors. The tanks are also covered to prevent water from entering and utilizing storage capacity. The storage tanks are equipped with odor control to further minimize any odor breakthrough from the facility. Biosolids are pulled from the storage tanks via two transfer pumps to send digested solids to a new truck loading station. Truck loading and disposal will occur regularly by Bio-Green Services (Advance, NC) who the County currently contracts with to haul digested biosolids and land apply for final disposal. Post ATAD Storage Summary No. of Tanks Tank Diameter( ft) Max Depth (ft) 2 60 24.3 Flow from ATAD Reactors Days of (gal/day) Volume Total (gal) Storage 17,146 1,027,989 60.0 Volume Each Volume Total (gal) (gal) 513,994 1,027,989 PT H CA,q Q �ESSjO��f, _ �•ip� fi9gg _ c./�.. D� G►f+IE�P.•� A. P Item Coversheet Pagel of 2 APPROVED Brunswick County Board of Commissioners ACTION AGENDA ITEM 2015 Action Item q IX, - 4. From: Utilities - Request for Approval of Award of Conlracl Sludge Operations for Brunswick Jerry Pierce, P.E. County Wastewater Treatment Plants Bio-Green Services, Inc. (Jerry Pierce, Director of Public Utilities) Issue/Action Requested: Request that the Board of Commissioners approve award of the contract sludge operations for the Brunswick County Wastewater Treatment Plants to Bio-Green Services, Inc. based upon the proposal submitted April 30, 2015, at a price of $0.045 per gallon for Class "A" Sludge and $0.049 per gallon for Class "B" Sludge with 15% of the bid attributable to fuel. Background/Purpose of Request: Brunswick County submitted a Request for Proposals to companies that have the capability to provide wastewater sludge hauling and disposal. The county generates approximately 5,385 million gallons of wastewater sludge per year. The county has secured permits from the North Carolina Department of Environment and Natural Resources (NC DENR) for land application of wastewater sludge on local farmlands. The farmers use the wastewater sludge as a supplemental source of nitrogen for their crops. The county received proposals from three firms. Bio-Green Services submitted the lowest bid and demonstrated the ability to meet the scheduling requirements required by the county for the contract wastewater sludge operations. The price for the two different types of wastewater sludge generated at the county's five wastewater treatment plants is as follows: $0.045 per gallon for Class "A" Sludge $0.049 per gallon for Class "B" Sludge They indicated that 15% of the bid was attributable to the price of fuel. County staff recommends that the Board of Commissioners award the contract wastewater sludge operations at the county's wastewater treatment plants to Bio-Green Services, Inc. Fiscal Impact: Pre -Audit Certification Required, Reviewed By Director of Fiscal Operations Funds available in the current operating budget Approved By County Attorney: Advisory Board Recommendation: Not Applicable County Manager's Recommendation: Recommend that the Board of Commissioners approve award of the contract sludge operations for the Brunswick County Wastewater Treatment Plants to Bio-Green Services, Inc. based upon the proposal submitted April 30, 2015, at a price of $0.045 per gallon for Class "A" Sludge and $0.049 per gallon for Class "B" Sludge with 15% of the bid attributable to fuel. ATTACHMENTS: Description t1 0 LiNnt •s - Cnatraci SIuJ w Orietauons f1rc 111c k9iils • Auwirh I http://brunswick.novusagenda.com/AgendaWeb/CoverSheet.asp... 5/20/2015 CONTRACT SLUDGE ❑PERATIONS FOR WASTEWATER TREATMENT PLANTS PROPOSALS RECEIVED 4-30-2015 PROPOSAL REMOVAL AND DISPOSAL OF CLASS "A" SLUDGE REMOVAL AND DISPOSAL OF CLASS "B" SLUDGE % BID PRICE ATTIBUTABLE TO FUEL BIO-GREEN SERVICES INC $ 0.045 $ 0.049 15.0% SYNAGRO $ 0.0479 $ 0.056 8.0% LEWIS FARMS & LIQUID WASTE, INC $ 0.083 $ 0.088 18.0% FUEL ADJUSTMENT PRICE CHANGES FUEL PRICE AT BID $ 2.926 10% INCREASE $ 3.219 ADJUSTED PRICES Class A Ciass B BIO-GREEN $ 0.0524 $ 0.0571 SYNAGRO $ 0.0521 $ 0.0609 LEWIS FARMS $ 00988 $ 01048 10% FUEL DECREASE FUEL PRICE AT BID $ 2.926 10% INCREASE $ 2.633 ADJUSTED PRICES Class A Class B BIO-GREEN $ 0.0389 $ 0.0424 SYNAGRO $ 0.0445 $ 00520 LEWIS FARMS $ 0.0691 $ 0.0733 BIO-GREEN SERVICES INC SYNAGRO CLASS A CLASS B Total $ 193,500.00 $ 67,865 00 $ 261,365.00 LEWIS FARMS & LIQUID WASTE, INC $ 10% FUEL INCREASE 205,970.00 $ 77,546.15 $ 283,516.15 354,750.00 $ 121,187.50 $ 475,937.50 BIO-GREEN $ 225,427.50 $ 79,062.73 $ 304,490.23 SYNAGRO $ 224,095.36 $ 84,370.21 $ 308,465.57 LEWIS FARMS $ 424,990.50 $ 145,182.63 $ 570,173.13 10% FUEL DECREASE BIO-GREEN $ 167,377.50 $ 58,703.23 $ 226,080.73 SYNAGRO $ 191,14016 $ 71,962.83 $ 263,102.99 LEWIS FARMS $ 297,280.50 $ 101,555.13 $ 398,835.63 Contract for Land Application Between Brunswick County And Bio-Green Service, Inc. This agreement is made as of 21 May, 2015 to the contract sludge operations for the County of Brunswick, North Carolina. WITNESSETH: In consideration of the mutual covenants contained herein the parties hereto intending to be legally bound hereby agree as follows: 1. TERM: Brunswick and Bio-Green mutually agrees to the following term: July1, 2015 through June 30, 2016. This contract may be renewed upon mutual agreement by both parties for a period not to exceed three yea rs. 2. Price: Brunswick and Bio-Green mutually agrees to the following for services performed: A. Removal and disposal of Class "A" Sludge $ 0.045 per gallon B. Removal and disposal of Class "B" Sludge $ 0.5014 per gallon C. % of Fuel price attributable to fuel is 15% The base fuel price will be established by the Energy Information Administration Diesel Fuel Price for the East coast of the United States for the week of April 20-26, 2015. This information will be available at the following Web page address: httpHwww.eia,doe.gov/ Bio-Green Services Inc. X� Denise Harrison President Brunswick Counly Name 41, 8 • Aq(A Title a,ur►.Mona "This ins[rurnent has been preaudited in the manner r fired by the Local tsovemmenI Budge{ and Fiscal �� a trol c_t " u[ie A. Miller, Cirec{ar of Fiscal Operat+nns Brunswick County, NO Carolina May 21 2015 125PM Johnson Insurance Ser 336-753-1013 page 1 AC 17110GRA OP ID: PT CERTIFICATE OF LIABILITY INSURANCE DATEIMM*DJYYYYI 05121l201 S TH13 CERTIFICATE Is 133UED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER THIS CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW, THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED REPRESENTATIVE OR PRODUCER, AND THE CERTIFICATE HOLDER. IMPDRTANT; If the certificate holder Is an ADDITIONAL INSURED, the Poitcy(los) must be endorsed. If SUBROGATION'IS WAIVED, subject to the terms and conditions of the policy, certain pollcias may require an endorsement. A statement on thle certifloate does not confer rights to the Cartiffasts holder In 11nu 4f Such an doriamentls . PRODUCER rar+rAc Johnson Insurance Sorvlces,lnc !"'V -_ Penn �W Turner PHONE E.I:33ts-7$1-5281 127 Marketplace Drive T rAX N 338 y5i�141 Macksvllle, NC 27fl2[i °' �l-Lel _ .. ' - ... Johnson incursnco Serviaes,loc wlmass, PtUMe 127TArke CB lB.COm _ __ _ INSUR6R(5l AFrarL7>r1cc011iLtAOE - IhsuneaA,Cincinnati Insurance Com any 10677 INSURED Bla-Green Siervices, Inc. Denise Harrison INMIRER a; 383 Potts Rd WSUMERC _ Advance, NC 27006 w&URCRo: WSURER E IN5l1fIEkF: - CQVLERAGE<S CERTIFICATE NUMBER: RENSEONNUMBER: THIS IS TO CERTIFY THAT THE POLICIES Or INSURANCE LISTED BELOW HAVE BEEN ISSUED T4 THE INSURE❑ NAMED ABOVE FOR THE POLICY PfRipp INDICATED, NOTWITHSTANDING ISSNpINi3 ANY REQUIREMENT TERM OR CONDITION OF AMY CONTRACT OR OTHER ❑CCUMENT WITH RE9PEGT To VJI{ICFI THIS CERTIFICATE MAY 6E iSSUC0 OR MAY PERTAIN. THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL TIIE TERMS, EXCLUSIONS AND CONDITIONS OF SUCH POLICIES LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS _ 1 TYPO OF INSURANCE in] SUBP P a I POLICYTIUI,IDEp Y iulYlbB UkKTS A x coMYElrtwLOENeRiALLIasILrTr i EACH OCCURRENCE 5 1�00D.00 CLAIMS-MADE� OCCUR ENP0033fi92 OBM1/2014 08f111201B - - — - WDUP one -_- I _ & b,QQt - ECAT_iEiLIMII�TAPPLIESPER:U JPERO•LOCYIiINJUC73 C'r aTH PERSONAL AACV ?NJUNY s 1,OQa.QiH •CQlrP1OPAdCi -- AUTDMOBILE LIASnM X ANY AUTO ALLOWMED AUCH 81LED T0UTOS NON ONR�ED HIREDAUTOS AUTOS ENP00 33892 0311112014 OW1112016 DN IN£ SEh7 Lt iIMi7 [nacdnOn S s 1,U60,400 S s s BODILY INJURY (Per pwum) BODILY INJURYIPar act�ierx} PAR f4 O�FIA�F se ■ F�tCNOCCUAR@kCt UMBRELLA LIAS OCCUR rJIC�SSLIAe _...� � CLAi4S$.MADE aE0 ReTelmarr � WORXERS CQM►RNlA'A0m AkD EhrFLDYERa L1A81LITY Yr N AW PR4PFilET0RlPARTNERetxecUTr* ❑rrICER1MFMBENEXCLUDED? NIA IM�n7rmry rn N�HI i S x S -- - S AGi,REOATE BTATUT_ ER "- EL. EACIiAC;CIDENT If y►a.NdlaRacnO QrAERATi k - Ip,u QE E.L. DIBWVEASL • EAEOVEIt Ei- DIfiE1LSE. ptSLlcr I ,ulr 6 s DESCRIPTION OF OPERATIONS I LOCATIONS I VEHICLES (ACORD 101, AddllkMal RemaiM Schedule. may be adadwd if, ore Space la nqulndR Brunsvilck County Attn: Jtalcquie Morden PO Box 249 Bolivia, NC 26422 ACORD 26 (2014101) BRUNSWI CANC. SHOULD ANY of THE ABOVE DESCRIBED PCQCIES BE CANCEu_En BEFORE THE EXPIRATION DATE THEREOF, NOTICE MALL BE DELIVERED IN ACCORDANCE WITH THE POLICY PH0VI54oNS, AUT`HOE ORRWw REPRESENTATN Q91988-2014 ACORD CORPORATION, All rights reserved. The ACORD name and logo are regletered marks of ACORD 1.2 Oil/Grease Handling A. Oil and Grease constitute only a small fraction of influent loading to the existing treatment works. Screening and grit removal systems are designed in a manner to adequately remove the majority of larger debris and particulate material. Solids processing equipment is equipped with sufficient washing/draining systems to recover the majority of organic materials including oil and grease. Recovered oil and grease shall be drained back into the treatment process to proceed to secondary treatment. Any residual oil and grease stuck to solids which are removed at the headworks after cleaning will be disposed of as part of normal disposal operations of the solids removed at the headworks facility.