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HomeMy WebLinkAboutNC0020834_Authorization to Construct_20181019SEE rraierrixesources ENVIRONMENTAL OVAL:T'Y L 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. 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. 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: http://portal.ncdenr,org/web/wq/swp/ps/npdes. 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). Applicant's name Town of Warrenton Signature authority's name per 15A NCAC 02T .0106(b) Robert Davie Signature authority's title Town Administrator Complete mailing address 133 South Main Street Warrenton, NC 27589 Telephone number 252-257-1122 Email address townadministrator@warrenton.nc.gov Professional Engineer's name Benjamin D. Clawson Professional Engineer's title Project Engineer North Carolina Professional Engineer's License No. 033710 Firm name Municipal Engineering Services Co. P.A. Firm License number C-0281 Complete mailing address 68 Shipwash Drive Garner, NC 27529 Application for Authorization to Construct Permit (FORM ATC-12-14) Page 1 FQJ V? �i6Sd>Ur4 eS ENVIRONMENTAL QUALITY LN C. Telephone number 919-772-5393 Email address bclawson@mesco.com NPDES Permit number NC0026000 Current Permitted flow (MGD) — include permit flow phases if applicable 2.0 I�Z•71�y' r • ►: Provide a brief description of the project: The proposed project will consist of replacing the existing mechanical bar screen with a new multi -rake unit, and replacing the grit collection arrangement with a new grit classifier to help separate grit from process water. The project will also replace the existing lime system with a new liquid feed and storage lime system Proposed work will also include the addition of new mixers to the primary aeration basin to help solve poor mixing issues within this treatment unit ® 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. ® 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. ❑ If the facility is subject to any Special Orders by Consent (SOC), submit the applicable SOC. ® Not Applicable. ❑ Submit a copy of the Finding of No Signcant Impactor 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. ® 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 Engineer. Application for Authorization to Construct Permit (FORM ATC-12-14) Page 2 ENVIRONMENTAL OUAL TY L State of North Carolina Divisionof Water Resources ® Per 21 NCAC 56 .1103(a)(6)I 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. wral in ® 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 Engineer. ® 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 El Not Applicable ® Process Mechanical ❑Not Applicable ® Structural ❑ Not Applicable Application for Authorization to Construct Permit (FORM ATC-12-14) Page 3 r If?f Csf.ur es rNV1'. ONMENTAL OUALiTt` L ® Electrical ❑ Instrumentation/Controls ❑ Architectural ❑ Building Mechanical ❑ Building Plumbing ❑ Not Applicable ® Not Applicable ® Not Applicable ® Not Applicable ® Not Applicable r•�.MEM• ® 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 publically 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: Sequence Plan is laid out as part of the Engineering Plans, 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 4.6.2 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. I. Permits ® Provide the following information for each permit and/or certification required for this project: Permit/ If Not Issued Provide Not Date Date Certification Status and Expected Permit/Certification Applicable Submitted Approved Number Issuance Date Dam Safety X Application for Authorization to Construct Permit (FORM ATC-12-14) Page 4 ENVIRONMENTAL OVAUT'Y LU J. •• `. • •now•� • • r �• Soil Erosion and Sediment Control X USCOE / Section 404 Permit X Water Quality Certification (401) X USCOE / Section 10 X Stormwater Management Plan X CAMA X NCDOT Encroachment Agreement X Railroad Encroachment Agreement X Other: ❑ 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 .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 CarolinaState of North Division of Water Resources r' teae sources 14) 1. Provide the following flow information: Plant Flows Existing Plant Design 2.0 MGD Current NPDES Permit Limit 2.0 MGD Current Annual Average (past 12 months) 0.404 MGD For Past 12 Months: For Past 24 Months: Start Date: July 2017 Start Date: July 2016 End Date: June 2018 End Date: June 2018 Maximum Month 0.502 MGD [May 2018] 0.548 MGD [Oct 20161 2.389 MGD * [Apr 25, 2017] This flow event was during large rain Maximum Day 1.405 MGD [Jan 29, 2018] storm that flooded the influent Pump Station and is believed to be inaccurate. Peak Hour [Data not Available] MGD [Data not Available] MGD Application for Authorization to Construct Permit (FORM ATC-12-14) Page 6 NorthState of Divisionof ENVIRONMENTAL GUAL Tt C 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 mg/L mg/L Total Phosphorus 2.0 mg/L mg/L Ib/day Ib/year lb/year Total Suspended 200 mg/L mg/L lb/day 3.15 mg/L 30.0 mg/L Solids (TSS) 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 il'utcf° CSO �Ces ENVIRONMENTAL QUAL74TY L �.� R11 1 1•. 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 design? ® Yes or ❑ No. If no, provide an explanation: Is this condition met by the 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. 15A NCAC 02T .0505(of 30 days f residual hall bprovided. hcondition 7. Per 0), a minimum ostorage se Is tis met by the design? ® Yes or L.]No. If no, explain the alternative design criteria proposed for this project in accordance 15A NCAC 02T .105(n): 8. Per 15A NCAC 02T .0505(q), the public shall be prohibited from access to the wastewater treatment facilities. Explain how the design complies with this requirement: Existing fence around the perimeter of the facility with locked gate for entry Is the treatment facility located within the 100-year flood plain? protected from the 100-year flood: ❑ Yes or ®No. If yes, describe how the facility is , poperations and flow equalization): 1. PRELIMINARY AND PRIMARY TREATMENT (i.e.hysical removal Calculations Treatment Unit Units Type Size per Unit Reference Reference No. of Plan Sheet Specification Provided? (Yes or No) Manual Bar Screen N/A Mechanical Bar 5.00 MGD at peak hourly Major Y Screen 1 Multi -Rake Screen flow Equipment Item #1 Major Grit Removal N/A Grit Classifier Match Flow -rate of Grit Equipment Pump (100 GPM) Item #2 Flow Equalization N/A Primary Clarifier N/A Circular ft diameter; ft side water depth Primary Clarifier N/A Rectangular square feet; ft side water depth Other Application for Authorization to Construct Permit (FORM ATC-12-14) Page 8 Application for Authorization to Construct Permit (FORM ATC-12-14) Page 8 State of North Carolina Divisionof Resources ENVI; ONM,ENrALQUAUTr 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 Type Size per Unit Provided? Units Reference Reference (Yes or No) Aerobic Zones/ N/A gallons Tanks Anoxic Zones/ N/A gallons Tanks Anaerobic N/A gallons Zones/Tanks Sequencing Batch N/A -- gallons Reactor (SBR) Membrane N/A -- gallons Bioreactor (MBR) Secondary Clarifier N/A Circular ft diameter; ft side water depth Secondary Clarifier N/A Rectangular square feet; ft side water depth Liquid Lime Other 1 Feed System 3. TERTIARY TREATMENT No. of Plan Sheet Specification Calculations Treatment Unit Type Size per Unit Provided? Units Reference Reference (Yes or No) ft diameter; ft side Tertiary Clarifier N/A Circular water depth Tertiary Clarifier N/A Rectangular square feet; ft side water depth Tertiary Filter N/A square feet Tertiary Membrane N/A square feet Filtration Post -Treatment N/A -- gallons Flow Equalization Post -Aeration N/A gallons Other N/A No. of Plan Sheet Specification Calculations Treatment Unit Type Size per Unit Provided? Units Reference Reference (Yes or No) gal/day per bank at peak Ultraviolet Light N/A (Parallel; in hourly flow; number of series) banks; number of lamps/bank Application for Authorization to Construct Permit (FORM ATC-12-14) Page 9 CNVIR:,NMENTAL spur e rr L5 Chlorination lsystem Liquid 9,400 gallons of contact C3—C4 y tank/unit Dechlorination 1System Liquid gallons of contact tank/unit No. of Plan Sheet Specification Calculations Treatment Unit Units Type Size per Unit Reference Reference Provided? (Yes or No) Gravity Thickening N/A square feet; ft side Tank water depth Mechanical Thickening/ N/A dry lb/hour Dewatering Aerobic Digestion N/A y Anaerobic N/A gallons Digestion Composting N/A dry lb/hour Drying N/A dry lb/hour Other N/A PUMP SYSTEMS (include influent, intermediate, effluent, major recycles, waste sludge, thickened waste sludge and plant drain pumps) Location No. of pumps Purpose Type Capacity of each pump Plan Sheet Reference Specification Reference GPM TDH N/A N/A N/A N/A N/A N/A N/A N/A 7. MIXERS Power of No. of plan Sheet Specification Location purpose Type Mixers P)fixer Reference Reference (HP) Help mixing so plant will not need to rely turbine mixers, Aeration Basin 4 mounted on an 30.0 on brush aerators for angle mixing and aerating. Application for Authorization to Construct Permit (FORM ATC-12-14) Page 10 • i 'czt-E r csourk es ENVIRONMENTAL QUALITY Application for Authorization to Construct Permit (FORM ATC-12-14) Page 11 L5 aMPONMENTAL QUALITY - .ANOWITOMO h-r. r • • 1 �.M me. M a a •' 1 • • •' .' •" •. Location No. of Blowers purpose Type Capacity of each Blower (Clo) plan Sheet Reference Specification Reference N/A Location No. of Units Purpose Type Plan Sheet Reference Specification Reference N/A 1. The minimum distance for each setback parameter to the wastewater treatment/storage units per 15A NCAC 02T .0506(b) are as follows: Is Minimum Distance Minimum Distance Requirement met by the Required from Nearest Setback Parameter Design? If "No", identify Treatment/Storage Setback Waivers in Item D.2 Unit 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 15A NCAC 02T .0506(d)? El 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 ip y u l t?f" N SO CC S E Fd`s`R€SIN ENTr,L. QUA L r■' ' �M ' I ■ ma I ■ r ■I I i I• ■ ■ Professional Engineer's Certification per 15A NCAC 02T .0105: I, Benjamin D. Clawson ,attest that this application package for an Authorization to Construct (Typed Name of Professional Engineer) for the Town of Tabor City Wastewater Treatment Plant Improvements (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. Although 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 143-215.6B, any person who knowingly makes any false statement, representation, or cercation 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 119SLIM111MY Y1� te GPd NPR ONlrU= TAL G�UAL.T-Y 14) I, Rober# Davie, 7ovdn Manager, attest that this application package for an Authorization to Construct (Typed Name of Signature Authority and Title) for the Tawn ofyarrenton Wastewater Treatment Plant —Town of Warrenton WWTP Improvements (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. f understand that the Division of Water Resources' issuance of the Autharizatian 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 143-215.66 any person wha 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 $k(�000, as well as civil penalties up to $25,000 per violation. Signature: i! Date: By U.S. Postal Service Bv Courier/SDedal DeliverV Application for Authorization to Construct Permit (FORM ATC42-14) Page 14 V I VI t(CSOWCes ENVIRONMENTAL :L QUAL TY L P 'I I 1 11 1 6 mom•' + • • •;I • • Telephone number 919-772-5393 Email address bclawson@mesco.com NPDES Permit number NC0020834 Current Permitted flow (MGD) — include permit flow phases if applicable 2.0 Provide a brief description of the project: The proposed project will consist of replacing the existing mechanical bar screen with a new multi -rake unit, and replacing the grit collection arrangement with a new grit classifier to help separate grit from process water. The project will also replace the existing lime system with a new liquid feed and storage lime system. Proposed work will also include the addition of new mixers to the primary aeration basin to help solve poor mixing issues within this treatment unit. ® 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. ® 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. ❑ If the facility is subject to any Special Orders by Consent (SOC), submit the applicable SOC. ® Not Applicable. D. Finding of No Significant Impactor Record of Decision ❑ Submit a copy of the Finding of No Significant Impactor 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 Engineer. Application for Authorization to Construct Permit (FORM ATC-12-14) Page 2