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HomeMy WebLinkAboutWQ0012948_Modification_20240326Initial Review Reviewer nathaniel.thorn burg Is this submittal an application? (Excluding additional information.) * Yes No Permit Number (IR) * WQ0012948 Applicant/Permittee North Carolina Wildlife Resources Commission Applicant/Permittee Address 1720 Mail Service Center, Raleigh, NC 27699 Is the owner in BIMS? Yes NO Is the facility in BIMS? Yes No Owner Type Facility Name County Fee Category Minor Is this a complete application?* Yes No Signature Authority Signature Authority Title Signature Authority Email Document Type (if non -application) Email Notifications State Pisgah Center for Wildlife Education WWTF Transylvania Does this need review by the hydrogeologist? * Yes No Regional Office CO Reviewer Admin Reviewer Fee Amount Complete App Date 03/26/2024 $0 Below list any additional email address that need notification about a new project. Email Address Comments to be added to email notfication Comments for Admin Comments for RO Comments for Reviewer Comments for Applicant Submittal Form Project Contact Information Please provide information on the person to be contacted by NDB Staff regarding electronic submittal, confirmation of receipt, and other correspondence. Name* Kyle Seaman Email Address* kyle.seaman@mcgillassociates.com Project Information ......................... Application/Document Type* New (Fee Required) Modification - Major (Fee Required) Renewal with Major Modification (Fee Required) Annual Report Additional Information Other Phone Number* 8456743575 Modification - Minor Renewal GW-59, NDMR, NDMLR, NDAR-1, N DAR-2 Residual Annual Report Change of Ownership We no longer accept these monitoring reports through this portal. Please click on the link below and it will take you to the correct form. https://edoes.deq.nc.gov/Forms/NonDischarge_Monitoring_Report Permit Type:* Wastewater Irrigation High -Rate Infiltration Other Wastewater Reclaimed Water Closed -Loop Recycle Residuals Single -Family Residence Wastewater Other Irrigation Permit Number: * WQ0012948 Has Current Existing permit number Applicant/Permittee* North Carolina Wildlife Resources Commission Applicant/Permittee Address* 1720 Mail Service Center, Raleigh, NC 27699 Facility Name * Pisgah Center for Wildlife Education WWTF Please provide comments/notes on your current submittal below. This submittal is associated with the installation of two on -site septic tanks, to be replace the existing ones. These will be installed in new locations of different size as part of the Bobby N. Setzer State Fish Hatchery Renovation project. At this time, paper copies are no longer required. If you have any questions about what is required, please contact Nathaniel Thornburg at nathaniel.thornburg@ncdenr.gov. Please attach all information required or requested for this submittal to be reviewed here. (Application Form, Engineering Plans, Specifications, Calculations, Etc.) On -Site Waste Treatment Permit Mod (Application, Plans, 17.95MB Tech. Specs and Calculations)_03-25-2024.pdf Upload only 1 PDF document (less than 250 MB). Multiple documents must be combined into one PDF file unless file is larger than upload limit. * By checking this box, I acknowledge that I understand the application will not be accepted for pre -review until the fee (if required) has been received by the Non -Discharge Branch. Application fees must be submitted by check or money order and made payable to the North Carolina Department of Environmental Quality (NCDEQ). I also confirm that the uploaded document is a single PDF with all parts of the application in correct order (as specified by the application). Mail payment to: NCDEQ — Division of Water Resources Attn: Non -Discharge Branch 1617 Mail Service Center Raleigh, NC 27699-1617 Signature G' V" 6Yliwl?w Submission Date 3/25/2024 State of North Carolina Department of Environmental Quality DWR Division of Water Resources 15A NCAC 02T .0500 — WASTEWATER IRRIGATION SYSTEMS Division of Water Resources FORM: WWIS 06-16 I. APPLICANT INFORMATION: 1. Applicant's name: North Carolina Wildlife Resources Commission 2. Applicant type: ❑ IndividuaI ❑ Corporation ❑ General Partnership ❑ Privately -Owned Public Utility ❑ Federal ® State ❑ Municipal ❑ County 3. Signature authority's name: Brad Kleinmaier per 15A NCAC 02T .0106(b) Title: Capital Projects Coodinator 4. Applicant's mailing address: 1720 Mail Service Center City: Raleigh State: NC Zip: 27699-1720 5. Applicant's contact information: Phone number: (919) 707-0155 Email Address: brad.kleinmaier@ncwildlife.org II. FACILITY INFORMATION: 1. Facility name: Bobby N. Setzer State Fish Hatchery 2. Facility status: Existing 3. Facility type: Minor (< 10,000 GPD or < 300 disposal acres) 4. Facility's physical address: 1401 Fish Hatchery Road City: Pisgah Forest State: NC Zip: 28768- County: Transylvania 5. Wastewater Treatment Facility Coordinates (Decimal Degrees): Latitude: 35.282500' Longitude:-82.798900' Datum: Unknown Level of accuracy: Unknown Method of measurement: Unknown 6. USGS Map Name: III. CONSULTANT INFORMATION: 1. Professional Engineer: Kyle Seaman License Number: 042470 Firm: McGill Associates Mailing address: 55 Broad Street City: Asheville State: NC Zip: 28801- Phone number: (828) 252-0575 Email Address: kyle.seaman@mcgillassociates.com 2. Soil Scientist: License Number: Firm: Mailing address: City: State: Zip: - Phone number: (_) _- Email Address: 3. Geologist: License Number: Mailing address: City: State: Zip: - Phone number: (_) _- Email Address: 4. Agronomist: Firm: Mailing address: City: State: Zip: - Phone number: () = Email Address: Firm: FORM: WWIS 06-16 Page I of 12 IV. GENERAL REQUIREMENTS —15A NCAC 02T .0100: 1. Application type: ❑ New ❑ Major Modification ® Minor Modification If a modification, provide the existing permit number: WQ0012948 and most recent issuance date: August 18, 2020 2. Application fee: $0 - Standard - Minor Modification 3. Does this project utilize public monies or lands? ® Yes or ❑ No If yes, was an Environmental Assessment required under 15A NCAC 01C? ❑ Yes or ® No If yes, which final environmental document is submitted? ❑ Finding of No Significant Impact or ❑ Record of Decision Briefly describe any mitigating factors from the Environmental Assessment that may impact this facility: 4. What is the status of the following permits/certifications applicable to the subject facility? Permit/Certification Date Submitted Date Approved Permit/Certification Number Agency Reviewer Collection System (O >_ 200,000 GPD) Dam Safety Erosion & Sedimentation Control Plan Nationwide 12 / Section 404 Pretreatment Sewer System Stormwater Management Plan Wetlands 401 Other: 5. What is the wastewater type? ® Domestic or Industrial (See 15A NCAC 02T .0103(20)) Is there a Pretreatment Program in effect? ❑ Yes or ❑ No Has a wastewater chemical analysis been submitted? ❑ Yes or ❑ No 6. Wastewater flow: 7500 GPD Limited by: ® Treatment, ❑ Storage, ❑ Field Hydraulics, ❑ Field Agronomics or ❑ Groundwater Mounding 7. Explain how the wastewater flow was determined: ❑ 15A NCAC 02T .0114 or ® Representative Data Hasa flow reduction been approved under 15A NCAC 02T .0114(f) ❑ Yes or ®No Establishment Type Daily Design Flow a No. of Units Flow gal/ GPD gal/ GPD gal/ GPD gal/ GPD gal/ GPD gal/ GPD Total GPD a See 15A NCAC 02T .0114(b), (d), (e)(1) and (e)(2), for caveats to wastewater design flow rates (i.e., minimum flow per dwelling; proposed unknown non-residential development uses; public access facilities located near high public use areas; and residential property located south or east of the Atlantic Intracoastal Waterway to be used as vacation rentals as defined in G.S. 42A-4). FORM: WWIS 06-16 Page 2 of 12 IV. GENERAL REQUIREMENTS —15A NCAC 02T .0100 (continued): 8. What is the nearest 100-year flood elevation to the facility? 2341.4 feet mean sea level. Source: Surveyor Are any treatment, storage or irrigation facilities located within the 100-year flood plain? ® Yes or ❑ No If yes, which facilities are affected and what measures are being taken to protect them against flooding? All Openings 2 ' above BFE. If yes, has the Applicant submitted written documentation of compliance with & 143 Article 21 Part 6? ® Yes or ❑ No 9. Has the Applicant provided documentation of the presence or absence of threatened or endangered aquatic species utilizing information provided by the Department's Natural Heritage Program? ❑ Yes or ® No 10. Does the facility have a proposed or existing groundwater monitoring well network? ❑ Yes or ® No If no, provide an explanation as to why a groundwater monitoring well network is not proposed: Not part of plans or existing permit If yes, complete the following table (NOTE — This table may be expanded for additional wells): Well Name Status Latitude " Longitude a Gradient Location Select - Select Select Select 0- Select Select Select - Select Select Select - Select Select Select 0- Select Select Select 0- Select Select Select 0- Select Select Select 0- ° Select Select Select 0- Select Select Select 0- Select Select a Provide the following latitude and longitude coordinate determination information: Datum: Select Level of accuracy: Select Method of measurement: Select 11. If the Applicant is a Privately -Owned Public Utility, has a Certificate of Public Convenience and Necessity been submitted? ❑ Yes, [—]No or ®N/A 12. If the Applicant is a Developer of lots to be sold, has a Developer's Operational Agreement (FORM: DEV) been submitted? ❑ Yes, ❑No or ®N/A 13. If the Applicant is a Home/Property Owners' Association, has an Association Operational Agreement (FORM: HOA) been submitted? ❑ Yes, ❑No or ®N/A 14. Demonstration of historical consideration for permit approval —15A NCAC 02T .0120: Has the Applicant or any parent, subsidiary or other affiliate exhibited the following? a. Has been convicted of environmental crimes under Federal law or G.S. 143-215.613? ❑ Yes or ® No b. Has previously abandoned a wastewater treatment facility without properly closing that facility? ❑ Yes or ® No c. Has unpaid civil penalty where all appeals have been abandoned or exhausted? ❑ Yes or ® No d. Is non -compliant with an existing non -discharge permit, settlement agreement or order? ❑ Yes or ® No e. Has unpaid annual fees in accordance with 15A NCAC 02T .0105(e)(2)? ❑ Yes or ®No FORM: WWIS 06-16 Page 3 of 12 V. WASTEWATER TREATMENT FACILITY DESIGN CRITERIA —15A NCAC 02T .0505: 1. For the following parameters, provide the estimated influent concentrations and designed effluent concentrations as determined in the Engineering Calculations, and utilized in the Agronomic Evaluation and Groundwater Modeling (if applicable): Parameter Estimated Influent Concentration Designed Effluent Concentration (monthly average) Ammonia Nitrogen (NH3-N) 45 mg/L 5 mg/L Biochemical Oxygen Demand (BOD5) 250 mg/L 15 mg/L Fecal Coliforms 1000 per 100 mL Nitrate Nitrogen (NO3-N) 10 mg/L 10 mg/L Nitrite Nitrogen (NO2-N) 0 mg/L 5 mg/L Total Kjeldahl Nitrogen 10 mg/L Total Nitrogen 55 mg/L 25 mg/L Total Phosphorus <10 mg/L 5 mg/L Total Suspended Solids (TSS) 120 mg/L 15 mg/L 2. Is flow equalization of at least 25% of the average daily flow provided? ® Yes or ❑ No 3. Does the treatment facility include any bypass or overflow lines? ❑ Yes or ® No If yes, describe what treatment units are bypassed, why this is necessary, and where the bypass discharges: 4. Are multiple pumps provided wherever pumps are used? ® Yes or ❑ No If no, how does the Applicant intend on complying with 15A NCAC 02T .0505(k)? 5. Check the appropriate box describing how power reliability will be provided in accordance with 15A NCAC 02T.050501 : ® Automatically activated standby power supply onsite capable of powering all essential treatment units; or ❑ 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; ➢ Has sufficient storage capacity that no potential for overflow exists; and ➢ Can tolerate septic wastewater due to prolonged detention. 6. If the wastewater treatment system is located within the 100-year flood plain, are there water -tight seals on all treatment units or a minimum of two feet protection from the 100-year flood plain elevation? ® Yes, ❑ No or ❑ N/A 7. In accordance with 15A NCAC 02T .0505(o), how many days of residuals storage are provided? >30 8. How does the Applicant propose to prohibit public access to the wastewater treatment and storage facilities? fencing 9. If an influent pump station is part of the proposed facility (i.e., within the wastewater treatment plant boundary), does the influent pump station meet the design criteria in 15A NCAC 02T .0305(h)? ❑ Yes, ❑ No, ❑ N/A — To be permitted separately, or ❑ N/A — Gravity fed 10. If septic tanks are part of the wastewater treatment facility, do the septic tanks adhere to the standards in 15A NCAC 18A .1900? ® Yes, ❑ No or ❑ N/A FORM: WWIS 06-16 Page 4 of 12 V. WASTEWATER TREATMENT FACILITY DESIGN CRITERIA —15A NCAC 02T .0505 (continued): 11. Provide the requested treatment unit and mechanical equipment information: a. PRELIMINARY / PRIMARY TREATMENT (i.e., physical removal operations and flow equalization): Treatment Unit No. of Units Manufacturer or Material Dimensions (ft) / Spacings in Volume _(gallons) Plan Sheet Reference Specification Reference Select Select Select Select Select b. SECONDARY / TERTIARY TREATMENT (i.e., biological and chemical processes to remove organics and nutrients) Treatment Unit No. of Units Manufacturer or Material Dimensions (ft) Volume (gallonsL Plan Sheet Reference Specification Reference Select Select Select Select Select Select Select Select c. DISINFECTION No. of Manufacturer or Volume Plan Sheet Specification Treatment Unit Units Material(gallons) Dimensions (ft) Reference Reference Select Select ➢ If chlorination is the proposed method of disinfection, specify detention time provided: mitnrtes (NOTE — 30 minutes minimum required), and indicate what treatment unit chlorine contact occurs: ➢ If ultraviolet (UV) light is the proposed method of disinfection, specify the number of banks: number of lamps per bank: and maximum disinfection capacity: GPM. d. RESIDUAL TREATMENT No. of Manufacturer or Volume Plan Sheet Specification Treatment Unit Units Material Dimensions (ft) (gallons)__Reference I Reference Select Select FORM: WWIS 06-16 Page 5 of 12 V. WASTEWATER TREATMENT FACILITY DESIGN CRITERIA —15A NCAC 02T .0505 (continued): e. PUMPS Location No. of Pumps Purpose Manufacturer / Type Capacity Plan Sheet I Reference Specification I Reference GPM I TDH f. BLOWERS Location No. of Blowers Units Served Manufacturer / Type Capacity CFM Plan Sheet Reference Specification I Reference g. MIXERS Location No. of Mixers Units Served Manufacturer / T e Power h Plan Sheet Reference Specification Reference h. RECORDING DEVICES & RELIABILITY Device No. of Units Location Manufacturer Maximum Ca Capacity Plan Sheet Reference Specification Reference Select Select Select Select i. EFFLUENT PUMP / FIELD DOSING TANK (IF APPLICABLE): Plan Sheet Reference Specification I Reference Internal dimensions (L x W x H or 9 x H) ft ft ft Total volume ft3 gallons Dosing volume ft3 gallons Audible & visual alarms Equipment to prevent irrigation during rain events FORM: WWIS 06-16 Page 6 of 12 VI. EARTHEN IMPOUNDMENT DESIGN CRITERIA —15A NCAC 02T .0505: IF MORE THAN ONE IMPOUNDMENT, PROVIDE ADDITIONAL COPIES OF THIS PAGE AS NECESSARY. 1. What is the earthen impoundment type? Select 2. Storage Impoundment Coordinates (Decimal Degrees): Latitude: 0Longitude: - ° Datum: Select Level of accuracy: Select Method of measurement: Select 3. Do any impoundments include a discharge point (pipe, spillway, etc)? ❑ Yes or ❑ No 4. Are subsurface drains present beneath or around the impoundment to control groundwater elevation? ❑ Yes or ❑ No 5. Is the impoundment designed to receive surface runoff? ❑ Yes or ❑ No If yes, what is the drainage area? ft2, and was this runoff incorporated into the water balance? ❑ Yes or ❑ No 6. If a liner is present, how will it be protected from wind driven wave action?: 7. Will the earthen impoundment water be placed directly into or in contact with GA classified groundwater? ❑ Yes or ❑ No If yes, has the Applicant provided predictive calculations or modeling demonstrating that such placement will not result in a contravention of GA groundwater standards? ❑ Yes or ❑ No 8. What is the depth to bedrock from the earthen impoundment bottom elevation? ft If the depth to bedrock is less than four feet, has the Applicant provided a liner with a hydraulic conductivity no greater than 1 x 10_1 cm/s? ❑ Yes, or ❑ N/A Has the Applicant provided predictive calculations or modeling demonstrating that surface water or groundwater standards will not be contravened? ❑ Yes or ❑ No If the earthen impoundment is excavated into bedrock, has the Applicant provided predictive calculations or modeling demonstrating that surface water or groundwater standards will not be contravened? ❑ Yes, ❑ No or ❑ N/A 9. If the earthen impoundment is lined and the mean seasonal high water table is higher than the impoundment bottom elevation, how will the liner be protected (e.g., bubbling, groundwater infiltration, etc.)? 10. If applicable, provide the specification page references for the liner installation and testing requirements: 11. If the earthen impoundment is located within the 100-year flood plain, has a minimum of two feet of protection (i.e., top of embankment elevation to 100-year flood plain elevation) been provided? ❑ Yes or ❑ No 12. Provide the requested earthen impoundment design elements and dimensions: Earthen Impoundment Design Elements Earthen Impoundment Dimensions Liner type: El Clay ❑ Synthetic Top of embankment elevation: ft ❑ Other I ❑ Unlined Liner hydraulic conductivity: x cm/s Freeboard elevation: ft Hazard class: Select Toe of slope elevation: ft Designed freeboard: ft Impoundment bottom elevation: ft Total volume: ft, gallons Mean seasonal high water table depth: ft Effective volume: ft3 gallons Embankment slope: Effective storage time: days Top of dam water surface area: ft2 Plan Sheet Reference: Freeboard elevation water surface area: ft2 Specification Section: Bottom of impoundment surface area: ft2 NOTE — The effective volume shall be the volume between the two foot freeboard elevation and the: (1) pump intake pipe elevation; (2) impoundment bottom elevation or (3) mean seasonal high water table, whichever is closest to the two foot freeboard elevation. FORM: WWIS 06-16 Page 7 of 12 VII. IRRIGATION SYSTEM DESIGN CRITERIA —15A NCAC 02T .0505: 1. Provide the minimum depth to the seasonal high water table within the irrigation area: NOTE — The vertical separation between the seasonal high water table and the ground surface shall be at least one foot. 2. Are there any artificial drainage or water movement structures (e.g., surface water or groundwater) within 200 feet of the irrigation area? ❑ Yes or ❑ No If yes, were these structures addressed in the Soil Evaluation and/or Hydrogeologic Report, and are these structures to be maintained or modified? 3. Soil Evaluation recommended Ioading rates (NOTE — This table may be expanded for additional soil series): Soil Series Fields within Soil Series Recommended Loading Rate in/hr Recommended Loading Rate in/ r Annual /Seasonal Loading If Seasonal, list appropriate months Select Select Select Select Select Select 4. Are the designed loading rates less than or equal to Soil Evaluation recommended loading rates? ❑ Yes or ❑ No If no, how does the Applicant intend on complying with 15A NCAC 02T .0505(n)? 5. How does the Applicant propose to prohibit public access to the irrigation system? 6. Has the irrigation system been equipped with a flow meter to accurately determine the volume of effluent applied to each field as listed in VH.8.? ❑ Yes or ❑ No If no, how does the Applicant intend on complying with 15A NCAC 02T .0505(t)? 7. Provide the required cover crop information and demonstrate the effluent will be applied at or below agronomic rates: Cover Crop Soil Series o /o Slope Nitrogen Uptake Rate lbs/ac r Phosphorus Uptake Rate Ibs/ac r a. Specify where the nitrogen and phosphorus uptake rates for each cover crop were obtained: b. Proposed nitrogen mineralization rate: c. Proposed nitrogen volatilization rate: d. Minimum irrigation area from the Agronomist Evaluation's nitrogen balance: ft2 e. Minimum irrigation area from the Agronomist Evaluation's phosphorus balance: ft2 f. Minimum irrigation area from the water balance: ft2 FORM: WWIS 06-16 Page 8 of 12 VII. IRRIGATION SYSTEM DESIGN CRITERIA —15A NCAC 02T .0505 (continued): 8. Field Information (NOTE — This table may be expanded for additional fields): Field Area (acres) Dominant Soil Series Designed Loading Rate in/hr Designed Loading Rate in/ r Latitude " Longitude " Waterb Stream Index No. n Classification O 0 0 0 0 0 0 o 0 0 0 0 o 0 0 0 0 0 0 0 a 0 0 0 0 o 0 0 a 0 a a 0 0 o a 0 0 Total a Provide the following latitude and longitude coordinate determination information: Datum: Select Level of accuracy: Select Method of measurement: Select b For assistance determining the waterbody stream index number and its associated classification, instructions may be downloaded at: http://deg.nc.gov/about/divisions/water-resources/planning/classification-standards/classifications Spray Irrigation Design Elements Drip Irrigation Design Elements Nozzle wetted diameter: ft Emitter wetted area: ft2 Nozzle wetted area: ft2 Distance between laterals: ft Nozzle capacity: GPM Distance between emitters: ft Nozzle manufacturer/model: / Emitter capacity: GPH Elevation of highest nozzle: ft Emitter manufacturer/model: / Specification Section: Elevation of highest emitter: ft Specification Section: FORM: WWIS 06-16 Page 9 of 12 VIII. SETBACKS —15A NCAC 02T .0506: 1. Does the project comply with all setbacks found in the river basin rules (15A NCAC 02B .0200)? ® Yes or ❑ No If no, list non -compliant setbacks: 2. Have any setback waivers been obtained in order to comply with 15A NCAC 02T .506(a) and .0506(b)? ❑ 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 3. Provide the minimum field observed distances (ft) for each setback parameter to the irrigation system and treatment/storage units (NOTE — Distances greater than 500 feet may be marked N/A): Setback Parameter Irrigation System Treatment / �torage Unit Any habitable residence or place of assembly under separate ownership or not to be maintained as part of the project site Any habitable residence or place of assembly owned by the Permittee to be maintained as art of the project site Any private or public water supply source Surface waters (streams — intermittent and perennial, perennial waterbodies, and wetlands) Groundwater lowering ditches (where the bottom of the ditch intersects the SHWT) Subsurface groundwater lowering drainage systems Surface water diversions (ephemeral streams, waterways, ditches) Any well with exception of monitoring wells Any property line Top of slope of embankments or cuts of two feet or more in vertical height Any water line from a disposal system Any swimming pool Public right of way Nitrification field Any building foundation or basement Impounded public water supplies Public shallow groundwater supply (less than 50 feet deep) 4. Does the Applicant intend on complying with 15A NCAC 02T .0506(c) in order to have reduced irrigation setbacks to property lines? ❑ Yes or ® No If yes, complete the following table by providing the required concentrations as determined in the Engineering Calculations: Estimated Influent Designed Effluent Designed Effluent Parameter Concentration Concentration Concentration (monthly average) (daily maximum Ammonia Nitrogen (NH3-N) mg/L mg/L mg/L Biochemical Oxygen Demand (BOD5) mg/L mg/L mg/L Fecal Coliforms 'W per 100 mL per 100 mL Total Suspended Solids (TSS) mg/L mg/L mg/L Turbidity NTU FORM: WWIS 06-16 Page 10 of 12 IX. COASTAL WASTE TREATMENT DISPOSAL REQUIREMENTS —15A NCAC 02H .0400: 1. Is this facility located in a Coastal Area as defined per 15A NCAC 02H .0403? ❑ Yes or ® No For assistance determining if the facility is located within the Coastal Area, a reference map may be downloaded at: Coastal Areas Boundary. 2. Is this an Interim Treatment and Disposal Facility per 15A NCAC 02H .0404(g)? ❑ Yes or ® No NOTE — Interim facilities do not include County and Municipal area -wide collection and treatment systems. IF ANSWERED YES TO ITEMS IX.1. AND IX.2., THEN COMPLETE ITEMS IX.3. THROUGH IX.17. 3. Is equalization of at least 25% of the average daily flow provided? ❑ Yes or ❑ No 4. How will noise and odor be controlled? 5. Is an automatically activated standby power source provided? ❑ Yes or ❑ No 6. Are all essential treatment units provided in duplicate? ❑ Yes or ❑ No NOTE — Per 15A NCAC 02T .010306), essential treatment units are defined as any unit associated with the wastewater treatment process whose loss would likely render the facility incapable of meeting the required performance criteria, including aeration units or other main treatment units, clarification equipment, filters, disinfection equipment, pumps and blowers. 7. Are the disposal units (i.e., irrigation fields) provided in duplicate (e.g„ more than one field)? ❑ Yes or ❑ No 8. Is there an impounded public surface water supply within 500 feet of the wetted area? ❑ Yes or ❑ No 9. Is there a public shallow groundwater supply (less than 50 feet deep) within 500 feet of the wetted area? ❑ Yes or ❑ No 10. Is there a private groundwater supply within 100 feet of the wetted area? ❑ Yes or ❑ No 11. Are there any SA classified waters within 100 feet of the wetted area? ❑ Yes or ❑ No 12. Are there any non -SA classified waters within 50 feet of the wetted area? ❑ Yes or ❑ No 13. Are there any surface water diversions (i.e., drainage ditches) within 25 feet of the wetted area? ❑ Yes or ❑ No 14. Per the requirements in 15A NCAC 02H .0404(g)(7), how much green area is provided? ftZ 15. Is the green area clearly delineated on the plans? ❑ Yes or ❑ No 16. Is the sprairrigation wetted area within 200 feet of any adjoining properties? ❑ Yes, ❑ No or ❑ N/A (i.e., drip irrigation) 17. Does the designed annual loading rate exceed 91 inches? ❑ Yes or ❑ No FORM: WWIS 06-16 Page 11 of 12 Professional Engineer's Certification: I Kyle M. Seaman attest that this application for (Professional Engineer's name fi•om Application Item II1.1.) Bobby N. Setzer State Fish Hatchery (Facility name from Application Item 11.1.) has been reviewed by me and is accurate, complete and consistent with the information supplied in the plans, specifications, engineering calculations, and all other supporting documentation to the best of my knowledge. I further attest that to the best of my knowledge the proposed design has been prepared in accordance with this application package and its instructions, as well as all applicable regulations and statutes. Although other professionals may have developed certain portions of this submittal package, inclusion of these materials under my signature and seal signifies that I have reviewed this material and have judged it to be consistent with the proposed design. NOTE — 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 to exceed $10,000, as well as civil penalties up to $25,000 per violation. North Carolina Professional Engineer's seal, signature, and date: Applicant's Certification per 15A NCAC 02T .0106(b): A "' a _ SEAL = 042470 ' LFjyG I N EE91 ,a te: ••''••;Ch a e,,se�`''� I, oy/'W-11� 4 v1 ^cAr ,e41 — 6� AO AJ Ry;etch ��,. r attest that this application for (SignatureAuthority's name & itle from Application Item I.3.) Af e, (Facility name from Application Item II/f has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that any discharge of wastewater from this non -discharge system to surface waters or the land will result in an immediate enforcement action that may include civil penalties, injunctive relief, and/or criminal prosecution. I will make no claim against the Division of Water Resources should a condition of this permit be violated. 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 the Applicant or any affiliate has not been convicted of an environmental crime, has not abandoned a wastewater facility without proper closure, does not have an outstanding civil penalty where all appeals have been exhausted or abandoned, are compliant with any active compliance schedule, and do not have any overdue annual fees per 15A NCAC 02T .0105(e). NOTE — 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. Signature: Date: FORM: W WIS 06-16 Page 12 of 12 Dncg BOBBY N. SETZER STATE FISH HATCHERY RENOVATION SCO PROJECT # 19-?03?4-02A TRANSYLVANIA COUNTY, ® 55 Broad Street Asheville, NC 28801 828.252.0575 NC Firm License # C-0459 m cg i l l associ ates . co m CAR o�oFEssioti�% SEAL - -_ a 042470 a z I N //011iin10\0 SIGNED AND DATED: R —1„Y„3s�ea�,PE .24 THIS DOCUMENT HAS BEEN DIGITALLY SIGNED AND SEALED IN ACCORDANCE WITH THE STANDARD CERTIFICATION REQUIREMENTS FOUND IN NC ADMINISTRATIVE CODE 21-56.1103(E). THIS DIGITAL SIGNATURE HAS BEEN FOUND BY THE NC BOARD OF EXAMINERS FOR ENGINEERS AND SURVEYORS TO MEET THESE STANDARDS. PLEASE CONTACT THE SIGNER IF YOU NEED ASSISTANCE IN VALIDATING THE SIGNATURE. NORTH CAROLINA MARCH 2O24 SCHEDULE OF DRAWINGS G-001 ..... COVER SHEET G-002 ..... SHEET INDEX G-003 ..... GENERAL NOTES AND LEGENDS * 00 �`GENERAL IALNE)TES AND LEGENDS * 005 ` GENERAL IALNE)TES AND LEGENDS Q'w� E) TSTTJ T'V"IT+ * 007� RE)GESS SGI 'fEMATIG EFFLUENT E QRII� E)lTi SS%.TGTf GTfOTV QRV� E)lTi SS%.TGTf G7TC * 010 RE)GESS SGI'EMATIG \A/ASTE TA Q'VT� �lTi �T�%.TGTf C QOil ...... E)lTi SS%.TGTf CE-101 ... OVERALL EXISTING CONDITIONS PLAN ® 55 Broad Street lip Asheville, NC 28801 828.252.0575 NC Firm License # C-0459 mcgillassociates.com SIGNED AND DATED: Oigilally sig N by Kyle M. Seaman, P.E. ON: C-US, E-kyle.seamanillA lassocia�es.mm, Kyle M. Seaman, P.E. -" oa�e : zoza.oa.zs n:Izgs-ga'gg' THIS DOCUMENT HAS BEEN DIGITALLY SIGNED AND SEALED IN ACCORDANCE WITH THE STANDARD CERTIFICATION REQUIREMENTS FOUND IN NC ADMINISTRATIVE CODE 21-56.1103(E). THIS DIGITAL SIGNATURE HAS BEEN FOUND BY THE NC BOARD OF EXAMINERS FOR ENGINEERS AND SURVEYORS TO MEET THESE 1 1/24/20241 BC CONSTRUCTION DOCUMENTS SUBMITTAL #2 STANDARDS. PLEASE CONTACT THE SIGNER IF YOU NEED ASSISTANCE IN NO. DATE BY DESCRIPTION VALIDATING THE SIGNATURE. BOBBY N. SETZER STATE FISH HATCHERY RENOVATION SCO PROJECT # 19-20324-02A NC WILDLIFE RESOURCES COMMISSION TRANSYLVANIA COUNTY, NORTH CAROLINA SHEET NOT TO SCALE SHEET INDEX OFFICE MANAGER DESIGNER M. CATHEY K. SEAMAN G=002 PROJECT MANAGER REVIEWER DATE PROJECT # FUNDING # K. SEAMAN DECEMBER 2023 19.00124 SCO #19-20324-02A II S GENERAL SEWER NOTES EXISTING CONDITIONS LEGEND C GENERAL CONSTRUCTION NOTES W GENERAL WATER NOTES 34 UPDATED MARCH, 2017 43 UPDATED MARCH, 2017 49 UPDATED MARCH, 2017 TEL PED TELEPHONE PEDESTAL 0 CALCULATED POINT SELEC PED ELECTRIC PEDESTAL OIPS 1 /2" REBAR SET WITH CAP 1. ALL CONSTRUCTION OUTSIDE RIGHTS -OF -WAY SHALL TAKE PLACE WITHIN THE PERMANENT AND TEMPORARY CATV SPED CABLE TV PEDESTAL ® CONCRETE MONUMENT ACCESS EASEMENTS SHOWN. SIGN SIGN ®CM-R/W RIGHT-OF-WAY MONUMENT 2. CONTRACTOR SHALL REPAIR ALL DISTURBED AREAS TO EQUAL OR BETTER CONDITION THAN THE ORIGINAL SITE, 1. FINISH GRADE TOLERANCES SHALL BE AS NOTED IN THE SPECIFICATIONS. THE ENGINEER MAY 1. ALL CONSTRUCTION OUTSIDE RIGHTS -OF -WAY SHALL TAKE PLACE WITHIN THE PERMANENT AND TEMPORARY ACCESS EASEMENTS SHOWN. CATV UNDERGROUND CABLE TV SIGN ODOT MON D.O.T. CONTROL POINT OR AS NOTED. MAKE GRADE CHANGES AS REQUIRED IN THE FIELD WITHOUT EFFECTING THE UNIT BID PRICE Luc Foc UNDERGROUND FIBER OPTIC CABLE SIGN ORBF REBAR FOUND FOR UNCLASSIFIED EXCAVATION. 2. CONTRACTOR SHALL REPAIR ALL DISTURBED AREAS TO EQUAL OR BETTER CONDITION THAN THE JUG TCS UNDERGROUND TELEPHONE CABLE SIGN ORRSPIKE RAILROAD SPIKE 3. LOCATIONS OF EXISTING UTILITIES AS SHOWN ARE APPROXIMATE ONLY. EXACT LOCATIONS ARE TO BE VERIFIED ORIGINAL SITE, OR AS NOTED. IN THE FIELD BY THE CONTRACTOR. AT LEAST THREE DAYS PRIOR TO CONSTRUCTION, CONTRACTOR MUST 2. UNLESS OTHERWISE STATED, ALL FILL AREAS SHALL BE CONSTRUCTED IN LAYERS OF 8" MAXIMUM UG GAS UNDERGROUND GAS LINE SIGN o PK NL PK NAIL FOUND SET / NOTIFY EXISTING UTILITY OWNERS. CALL 811 BEFORE YOU DIG. THICKNESS, WITH WATER ADDED OR SOIL CONDITIONED TO THE OPTIMUM MOISTURE CONTENT AS 3. LOCATIONS OF EXISTING UTILITIES AS SHOWN ARE APPROXIMATE ONLY. EXACT LOCATIONS ARE TO DETERMINED BY THE ENGINEER AND COMPACTED WITH A SHEEP'S FOOT ROLLER TO A COMPACTION BE VERIFIED IN THE FIELD BY THE CONTRACTOR. AT LEAST THREE DAYS PRIOR TO CONSTRUCTION, JUG ELEC UNDERGROUND ELECTRIC LINE SIGN SPINDLE SPINDLE FOUND / SET 4. ALL WORK NEAR AND AROUND WATERWAYS MUST CONFORM TO THE RULES OF THE STATE OF NORTH EQUAL TO OR GREATER THAN 95% (100% IN THE TOP 2' OF THE SUB GRADE BELOW ROADWAYS AND CONTRACTOR MUST NOTIFY EXISTING UTILITY OWNERS. CALL 811 BEFORE YOU DIG. ,C„o,o, LP LIGHT POLE ®CPHUB HUB &TACK SET CAROLINA. PARKING LOTS) OF THE DENSITY OBTAINED BY COMPACTING A SAMPLE OF THE MATERIAL IN ca.L, OD esz,wa 4. ALL WORK NEAR AND AROUND WATERWAYS MUST CONFORM TO THE RULES OF THE STATE OF N= 5. CONTRACTOR MUST PROVIDE EROSION CONTROL DEVICES TO CONTROL RUNOFF FROM THE CONSTRUCTION SITE. ACCORDANCE WITH THE STANDARD PROCTOR METHOD OF MOISTURE -DENSITY RELATIONSHIP TEST, NORTH CAROLINA. rr9 TM LAVA OUP UTILITY POLE ACP/NL GPS CONTROL POINT NAIL SET / FOUND CONTRACTOR WILL BE RESPONSIBLE FOR ANY FINES THAT MAY BE LEVIED DUE TO POLLUTION CREATED DURING ASTM D698 OR AASHTO-99 UNLESS SPECIFIED IN OTHER SPECIFICATIONS. 5. CONTRACTOR MUST PROVIDE EROSION CONTROL DEVICES TO CONTROL RUNOFF FROM THE E GUY WIRE ANCHOR OCP/NL CONTROL POINT / NAIL SET GPS CONSTRUCTION. 3. ENTIRE AREA TO BE GRADED SHALL BE CLEARED AND GRUBBED. NO FILL SHALL BE PLACED ON CONSTRUCTION SITE. CONTRACTOR WILL BE RESPONSIBLE FOR ANY FINES THAT MAY BE LEVIED DUE ®TSP TRAFFIC SIGNAL POLE OCP/TEMP CONTROL POINT TEMPORARY MARK 6. CONTRACTOR SHALL FOLLOW ALL FEDERAL, STATE AND LOCAL HEALTH AND SAFETY REGULATIONS PERTAINING ANY AREA NOT CLEARED AND GRUBBED. TO POLLUTION CREATED DURING CONSTRUCTION. RXR RAILROAD CROSSING SIGNAL NGS METAL ROD NATIONAL GEODETIC SURVEY METAL ROD TO CONSTRUCTION OPERATIONS. 4. ALL SOIL EROSION CONTROL MEASURES REQUIRED BY THE GRADING PLAN SHALL BE PERFORMED 6. CONTRACTOR SHALL FOLLOW ALL FEDERAL, STATE AND LOCAL HEALTH AND SAFETY REGULATIONS PERTAINING TO CONSTRUCTION OPERATIONS. O MH MANHOLE NGS CM NATIONAL GEODETIC SURVEY CONCRETE MONUMENT ® 7. SEWER FORCE MAINS AND WATER LINES SHALL HAVE 3'-O" MINIMUM COVER UNLESS OTHERWISE SHOWN ON PRIOR TO GRADING, CLEARING OR GRUBBING. ALL EROSION CONTROL DEVICES SUCH AS SILT Q SSMH SANITARY SEWER MANHOLE THE DRAWINGS. FENCES, ETC., SHALL BE MAINTAINED IN WORKABLE CONDITION FOR THE LIFE OF THE PROJECT 7. WATER LINES SHALL HAVE 3'-0" MINIMUM COVER UNLESS OTHERWISE SHOWN ON THE DRAWINGS. TEMPORARY CONTROL POINT SET AND SHALL BE REMOVED AT THE COMPLETION OF THE PROJECT ONLY ON THE ENGINEER'S O SDMH STORM DRAIN MANHOLE ® NETWORK TRIANGULATION POINT 8. WATER AND SEWER LINES SHALL HAVE A MINIMUM 10' HORIZONTAL SEPARATION OR A MINIMUM 18" VERTICAL APPROVAL. PAYMENT SHALL BE CONSIDERED INCIDENTAL TO CLEARING AND GRUBBING. IF DURING 8. WATER AND SEWER LINES SHALL HAVE A MINIMUM 10' HORIZONTAL SEPARATION OR A MINIMUM 18" Q COMMH COMMUNICATION MANHOLE SEPARATION WITH THE WATER OVER SEWER, OR BOTH WATER AND SEWER LINES SHALL BE DUCTILE IRON PIPE THE LIFE OF THE PROJECT, A STORM CAUSES SOIL EROSION WHICH CHANGES FINISH GRADES OR VERTICAL SEPARATION WITH THE WATER OVER SEWER, OR BOTH WATER AND SEWER LINES SHALL BE 10' EITHER SIDE OF THE CROSSING. CREATES "GULLIES" AND "WASHED AREAS", THESE SHALL BE REPAIRED AT NO EXTRA COST, AND DUCTILE IRON PIPE 10' EITHER SIDE OF THE CROSSING. O ELMH ELECTRICAL MANHOLE ASTAKE STAKE FOUND ALL SILT WASHED OFF OF THE PROJECT SITE ONTO ADJACENT PROPERTY SHALL BE REMOVED AS O J.B. JUNCTION BOX 0 INTERSTATE HIGHWAY 9. SEWER AND STORM SEWER LINES SHALL HAVE A MINIMUM 24" SEPARATION. IF 24" SEPARATION IS NOT DIRECTED BY THE ENGINEER AT NO EXTRA COST. THE CONTRACTOR SHALL ADHERE TO ANY 9. WATER STORM SEWER LINES SHALL HAVE A MINIMUM SEPARATION EXCEPT UNDER OBTAINABLE, DUCTILE IRON PIPE SHALL BE USED FOR THE SEWER LINE OR A SUPPORTING MATERIAL SUCH AS APPROVED EROSION CONTROL PLANS WHETHER INDICATED IN THE CONSTRUCTION PLANS OR UNDER DANDRAINS T STORM DRAINS WHICH SHALL HAVE 24" VERTICAL SEPARATION. IF SEPARATION IS NOT OBTAINABLE, IO OBTAINABLE, SPIGOT SPIGOT/YARD HYDRANT 66 U.S. HIGHWAY PLOWABLE FILL SHALL BE INSTALLED BETWEEN THE PIPES. SEPARATE COVER. DUCTILE IRON PIPE SHALL BE USED FOR THE WATER LINE OR A SUPPORTING MATERIAL SUCH AS FLOWABLE FILL SHALL BE INSTALLED BETWEEN THE PIPES. O C.O. SEWER CLEAN -OUT FFE ELEVATION FINISHED FLOOR ELEVATION 10. SEE PROJECT SPECIFICATIONS FOR ADDITIONAL INFORMATION. 5. DISPOSABLE MATERIAL 10. SEE PROJECT SPECIFICATIONS FOR ADDITIONAL INFORMATION. O E.SS ELECTRIC SERVICE STUB -OUT 0 MW MONITORING WELL 11. UNLESS OTHERWISE NOTED, ALL BURIED PIPE SHALL BE INSTALLED WITH PUSH -ON JOINTS AND EXPOSED PIPING A. CLEARING AND GRUBBING WASTES SHALL BE REMOVED FROM THE SITE AND PROPERLY 11. LEGAL DESCRIPTIONS FOR PROPOSED EASEMENTS BY OTHERS. O G.SS GAS SERVICE STUB -OUT OPz PIEZOMETER SHALL BE FLANGED JOINT. DISPOSED OF BY THE CONTRACTOR AT HIS EXPENSE, UNLESS SPECIFIED OTHERWISE. ®CB CATCH BASIN ® LANDFILL GAS MONITORING PROBE 12. CONTRACTOR SHALL NOTIFY THE PROPER LOCAL AUTHORITIES 24 HOURS PRIOR TO ANY ROAD BEING 12. LEGAL DESCRIPTIONS FOR PROPOSED EASEMENTS BY OTHERS. B. SOLID WASTES TO BE REMOVED, SUCH AS SIDEWALKS, CURBS, PAVEMENT, ETC., MUST BE CLOSED FOR CONSTRUCTION, INCLUDING BUT NOT LIMITED TO LOCAL NEWSPAPER, RADIO STATION, ®CI CURB INLET O SURFACE WATER SAMPLING LOCATION 13. SITE TOPOGRAPHIC AND BOUNDARY SURVEY PROVIDED BY SURVEYOR NOTED ON PLANS. PLACED IN SPECIFIC DISPOSAL AREAS DELINEATED ON THE PLANS OR REMOVED FROM THE FIRE DEPARTMENT, COUNTY SHERIFF'S DEPARTMENT, AMBULANCE, AND COUNTY EMERGENCY AGENCY. OWM WATER METER 69 LANDFILL GAS VENT SITE AS REQUIRED BY THE SPECIFICATIONS. THIS MATERIAL SHALL HAVE A MINIMUM COVER ALL TRAFFIC CONTROL SHALL CONFORM TO THE REQUIREMENTS OF THE NORTH CAROLINA 14. CONTRACTOR SHALL NOTIFY THE PROPER LOCAL AUTHORITIES 24 HOURS PRIOR TO ANY ROAD BEING CLOSED OF 2'. THE CONTRACTOR SHALL MAINTAIN SPECIFIED COMPACTION REQUIREMENTS IN THESE DEPARTMENT OF TRANSPORTATION. AFH FIRE HYDRANT O LANDFILL GAS COLLECTION WELLHEAD FOR CONSTRUCTION, INCLUDING BUT NOT LIMITED TO LOCAL NEWSPAPER, RADIO STATION, FIRE DEPARTMENT, AREAS. WHEN DISPOSAL SITES ARE NOT PROVIDED, THE CONTRACTOR SHALL REMOVE THIS 13. CONTRACTOR SHALL NOTIFY THE ENGINEER AFTER EXISTING BURIED UTILITIES HAVE BEEN LOCATED >a WV WATER VALVE QW POTABLE WATER WELL COUNTY SHERIFF'S DEPARTMENT, AMBULANCE, AND COUNTY EMERGENCY AGENCY. ALL TRAFFIC CONTROL SHALL WASTE FROM THE SITE AND PROPERLY DISPOSE OF IT AT HIS EXPENSE. AND 24 HOURS PRIOR TO CONSTRUCTION. D4 BLOWOFF BLOW OFF VALVE MAILBOX OR PAPER BOX CONFORM TO THE REQUIREMENTS OF THE NORTH CAROLINA DEPARTMENT OF TRANSPORTATION. C. ABANDONED UTILITIES SUCH AS CULVERTS, WATER PIPE, HYDRANTS, CASTINGS, PIPE 14. ALL FENCE DAMAGED DURING CONSTRUCTION SHALL BE REPLACED WITH LIKE MATERIALS IN A VALVE OMB ❑PB POSTAL DROP BOX 15. CONTRACTOR SHALL NOTIFY THE ENGINEER AFTER EXISTING BURIED UTILITIES HAVE BEEN LOCATED AND 24 APPURTENANCES, UTILITY POLES, ETC., SHALL BE THE PROPERTY OF THE SPECIFIC UTILITY WORKMANLIKE MANNER AND IN ACCORDANCE WITH STANDARD FENCE CONSTRUCTION PRACTICES AT ® G/M GAS METER HOURS PRIOR TO CONSTRUCTION. AGENCY, OR COMPANY HAVING JURISDICTION. BEFORE THE CONTRACTOR CAN REMOVE, THE CONTRACTOR'S EXPENSE. ® G/V GAS VALVE LSAT DISH SATELLITE DISH 16. LOCATIONS SHOWN FOR SANITARY SEWER SERVICES ARE ASSUMED. COORDINATE LOCATIONS OF ALL PROPOSED DESTROY, SALVAGE, REUSE, SELL OR STORE FOR HIS OWN USE ANY ABANDONED UTILITY, HE MUST PRESENT TO THE OWNER WRITTEN PERMISSION FROM THE UTILITY INVOLVED. 15. CONTRACTOR SHALL FIELD LOCATE ALL BURIED TELEPHONE LINE IN CONFLICT WITH THE PROPOSED D-a ICV IRRIGATION CONTROL VALVE OYARD ORNAMENT STATUE, BIRD BATHS, ETC. SEWER SERVICE CONNECTIONS WITH PROPERTY OWNER PRIOR TO CONSTRUCTION. WATER LINE. WHERE NECESSARY, EXISTING BURIED TELEPHONE LINE SHALL BE TEMPORARILY MOVED DURING CONSTRUCTION OF THE PROPOSED WATER LINE AND RE-LAID AT NO ADDITIONAL COST TO oa PIV POST INDICATOR VALVE TREES 17. CONTRACTOR SHALL FIELD VERIFY ALL PROPOSED MANHOLE TOP ELEVATIONS AND EXISTING MANHOLE INVERTS D. ON SITE BURNING IS PROHIBITED. THE OWNER. ® E.JUNC ELECTRIC JUNCTION BOX OR OUTLET �,'i SHRUBS /BUSHES PRIOR TO CONSTRUCTION AND NOTIFY ENGINEER OF ANY DISCREPANCIES. CONTRACTOR SHALL ADJUST ALL 16. CONTRACTOR SHALL BE RESPONSIBLE FOR ANY DAMAGE TO EXISTING ROADS DURING CONSTRUCTION o SIG TRAFFIC SIGNAL BOX PROPOSED SEWER STRUCTURES TO MATCH FINISHED PAVEMENT ELEVATIONS. COSTS OF RAISING STRUCTURES 6. IN THE EVENT EXCESSIVE GROUNDWATER OR SPRINGS ARE ENCOUNTERED WITHIN THE LIMITS OF AND SHALL REPAIR ROADS PER REQUIREMENTS OF THE NORTH CAROLINA DEPARTMENT OF BOX (H) HORIZONTAL GROUND DISTANCE SHALL BE CONSIDERED INCIDENTAL TO OTHER WORK ON THE PROJECT. CONSTRUCTION, THE CONTRACTOR SHALL INSTALL NECESSARY UNDER DRAINS AND STONE TRANSPORTATION. NO OPEN CUTS OF EXISTING ROADS SHALL BE ALLOWED EXCEPT WHERE AS DIRECTED BY THE ENGINEER. ALL WORK SHALL BE PAID BASED UPON UNIT BIDS, INDICATED ON THE DRAWINGS OR WHERE SPECIFIC PERMISSION IS GRANTED BY THE NORTH (G ) NC STATE PLANE GRID DISTANCE 18. MANHOLES AND CASTINGS SHALL MEET THE REQUIREMENTS OF OWNER AS WELL AS THE PROJECT UNLESS SPECIFIED OTHERWISE. CAROLINA DEPARTMENT OF TRANSPORTATION. SAND OR A SIMILAR MATERIAL APPROVED BY THE SPECIFICATIONS. NORTH CAROLINA DEPARTMENT OF TRANSPORTATION SHALL BE PLACED ON THE ROAD TO AID IN ------------------------------- CULVERT 7. THE CONTRACTOR IS RESPONSIBLE FOR THE COORDINATION OF ADJUSTMENT OF ALL UTILITY THE CLEAN UP AFTER CONSTRUCTION. A MINIMUM OF 2" OF SAND SHALL BE PLACED ON THE ROAD 19. 4" SANITARY SEWER SERVICE LINES SHALL BE INSTALLED AT 2.0% MINIMUM SLOPE AND SHALL BE DUCTILE SURFACE ACCESSES WHETHER HE PERFORMS THE WORK OR A UTILITY COMPANY PERFORMS THE WORK. PRIOR TO STOCKPILING SPOIL MATERIAL ON THE ROAD SURFACE TO FACILITATE CLEANUP. x x x FENCE IRON IN PAVED AREAS. SILT FENCE 8. THE CONTRACTOR SHALL CONTROL ALL "DUST" BY PERIODIC WATERING AND SHALL PROVIDE ACCESS -o-o-o-o-o-o-o-o-o-o-o-o-o-o- GUARD RAIL 20. ALL FENCE DAMAGED DURING CONSTRUCTION SHALL BE REPLACED WITH LIKE MATERIALS IN A WORKMANLIKE AT ALL TIMES FOR PROPERTY OWNERS WITHIN THE PROJECT AREA AND FOR EMERGENCY VEHICLES. MANNER AND IN ACCORDANCE WITH STANDARD FENCE CONSTRUCTION PRACTICES AT THE CONTRACTOR'S ALL OPEN DITCHES AND HAZARDOUS AREAS SHALL BE CLEARLY MARKED IN ACCORDANCE WITH THE - - - -S- - - - -S APPROXIMATE LOCATION OF EXPENSE. SPECIFICATIONS. EXISTING SEWER LINES 21. CONTRACTOR SHALL FIELD LOCATE ALL BURIED TELEPHONE LINE IN CONFLICT WITH THE PROPOSED UTILITY LINE. 9 ALL AREAS WHERE THERE IS EXPOSED DIRT SHALL SEEDED, FERTILIZED AND MULCHED - - - - - W- - - - - W- APPROXIMATE LOCATION OF EXISTING WATER LINES WHERE NECESSARY, EXISTING BURIED TELEPHONE LINE SHALL BE TEMPORARILY MOVED DURING CONSTRUCTION ACCORDING TO THE SPECIFICATIONS. THE FINISHED SURFACE SHALL BE TO GRADE AND SMOOTH, APPROXIMATE LOCATION OF OF THE PROPOSED UTILITY LINE AND RE-LAID AT NO ADDITIONAL COST TO THE OWNER. FREE OF ALL ROCKS LARGER THAN 3', EQUIPMENT TRACKS, DIRT CLODS, BUMPS, RIDGES AND - - - -G- - - - -G EXISTING GAS LINES 22. CONTRACTOR SHALL BE RESPONSIBLE FOR ANY DAMAGE TO EXISTING ROADS DURING CONSTRUCTION AND GOUGES PRIOR TO SEEDING; THE SURFACE SHALL BE LOOSENED TO A DEPTH OF t4"-6" TO SHALL REPAIR ROADS PER REQUIREMENTS OF THE NORTH CAROLINA DEPARTMENT OF TRANSPORTATION. NO ACCEPT SEED. THE CONTRACTOR SHALL NOT PROCEED WITH SEEDING OPERATIONS WITHOUT FIRST OBTAINING THE ENGINEER'S APPROVAL OF THE GRADED SURFACE. ALL SEEDING SHALL BEPERFORMED I I I I I I I I I I I I I I I I I I I I I I TOP OF SLOPE OPEN CUTS OF EXISTING ROADS SHALL BE ALLOWED EXCEPT WHERE INDICATED ON THE DRAWINGS OR WHERE BY A MECHANICAL "HYDRO -SEEDER". HAND SEEDING SHALL BE AUTHORIZED ON AN AREA I I I I I I I I I I I I I I I I I I I I I I TOE OF SLOPE SPECIFIC PERMISSION IS GRANTED BY THE NORTH CAROLINA DEPARTMENT OF TRANSPORTATION. SAND OR A BY AREA APPROVAL BY THE ENGINEER. --DL-----DL-----DL-- DITCH LINES SIMILAR MATERIAL APPROVED BY THE NORTH CAROLINA DEPARTMENT OF TRANSPORTATION SHALL BE PLACED ON THE ROAD TO AID IN THE CLEAN UP AFTER CONSTRUCTION. A MINIMUM OF 2" OF SAND SHALL BE PLACED 10. WHERE CMP STORM DRAIN IS SPECIFIED, PIPE SHALL BE CORRUGATED METAL PIPE (CMP) CONFORMING TO - - - - -CTV- - - - -CTV- APPROXIMATE LOCATION OF UNDERGROUND CABLE TV LINE ON THE ROAD PRIOR TO STOCKPILING SPOIL MATERIAL ON THE ROAD SURFACE TO FACILITATE CLEANUP. AASHTO M-36, WITH RE -ROLLED ENDS TO ACCOMMODATE CORRUGATED COUPLING BANDS. 18" PIPE SHALL 23. CONTRACTOR SHALL MAINTAIN SEWAGE FLOW IN SEWER SYSTEM AT ALL TIMES AND SHALL PROVIDE BYPASS BE 16 GAUGE, 24" AND 30" PIPE SHALL BE 14 GAUGE AND 36" PIPE AND OVER SHALL BE 12 GAUGE AS CTV APPROXIMATE LOCATION OF OVERHEAD CABLE TV LINE PUMPING AND/OR PIPING AS REQUIRED. NO SANITARY SEWER OVERFLOWS ARE PERMITTED. SPECIFIED ON THE PLANS, PIPE AND COUPLING BANDS SHALL CONFORM TO NCDOT 1032-3 FOR PLAIN PIPE OR 1032-4 (A) FOR BITUMINOUS COATED AND PARTIALLY PAVED PIPE. DIMPLE BANDS SHALL BE 12 GAUGE. - - - -- Foc - - - - Foc- APPROXIMATE LOCATION OF UNDERGROUND FIBER OPTIC CABLE LINE WHERE RCP STORM DRAIN IS SPECIFIED, PIPE SHALL BE REINFORCED CONCRETE PIPE (RCP) CONFORMING TO AASHTO M-170, AS CONTAINED IN NCDOT STANDARD SPECIFICATION 1032-9 FOR WALL "B" TYPE. _ _ _ _ _ _ _ -E -E APPROXIMATE LOCATION OF WHERE HDPE STORM DRAIN IS SPECIFIED, PIPE SHALL BE HIGH DENSITY POLYETHYLENE (HOPE). SMOOTH E E UNDERGROUND ELECTRIC LINE APPROXIMATE LOCATION OF WALL INTERIOR, WITH WATER TIGHT JOINTS, BACKFILLED WITH # 57 WASHED STONE UP TO MIN. 6" OVER OVERHEAD ELECTRIC LINE THE TOP OF THE PIPE. HDPE PIPE USED FOR STORM DRAINAGE DETENTION SYSTEMS SHALL BE "HANCOR APPROXIMATE LOCATION OF BLUE SEAL" OR APPROVED EQUAL. SHALL NOT BE USED. - - - - T- - - - - T UNDERGROUND TELEPHONE LINES ALL CORRUGATED METAL STORM DRAIN PIPE (CMP) SHALL BE ALUMINIZED TYPE 2 CORRUGATED STEEL APPROXIMATE LOCATION OF MANUFACTURED IN ACCORDANCE WITH THE REQUIREMENTS OF AASHTO M-36. THE PIPE SHALL BE T T OVERHEAD TELEPHONE LINES MANUFACTURED FROM ALUMINIZED STEEL TYPE 2 MATERIAL CONFORMING TO THE REQUIREMENTS OF AASHTO - - - - -Row- - - - -Row- RIGHT-OF-WAY M-274. ALL PIPE SHALL BE FURNISHED WITH RE -ROLLED ENDS AND SHALL BE JOINED WITH HUGGER BANDS. THE USE OF DIMPLE BANDS WILL NOT BE ALLOWED. PIPE THROUGH 24" DIAMETER SHALL BE 16 TREELINE GAUGE, PIPE THROUGH 42" DIAMETER SHALL BE 14 GAUGE, PIPE THROUGH 54" DIAMETER 0000000000 SHRUBLINE - - - - PROPERTY LINE NOT SURVEYED 11. CONTRACTOR SHALL VERIFY ALL ELEVATIONS BEFORE INSTALLATION OF FACILITIES. .000000000000000000000000000000000. ROCKLINE 12. CATCH BASINS CAST -IN -PLACE SHALL CONFORM TO THE REQUIREMENTS OF NCDOT STANDARD SPECIFICATIONS FOR ROADS AND STRUCTURES (LATEST EDITION) ARTICLES 840-1 THROUGH 840-3. - - - - STREAM LINE CURB INLET CATCH BASIN SHALL CONFORM TO NCDOT STANDARD DETAILS 840.02 THROUGH 840.04. DROP INLETS SHALL CONFORM TO STANDARD DETAIL 840.14. JUNCTION - - - - - - - CENTERLINE BOXES SHALL CONFORM TO STANDARD DETAIL 840.31. CENTERLINE VARIANT 13. CURB INLET FRAME, GRATE AND HOOD SHALL BE NEENAH R-3233D, PRODUCTS BY DEWEY BROS., U.S. FOUNDRY OR EQUAL. DROP INLET FRAME AND GRATE SHALL BE NEENAH R-3339A OR EQUAL. - - - - SWAM PLINE/WETLANDS FIELD INLET COVER SHALL CONFORM TO NCDOT STANDARD DETAIL 840.04, OPENING FACING UPSTREAM. ----u-----u APPROXIMATE LOCATION OF 14. CONCRETE AND MASONRY SHALL MEET THE REQUIREMENTS OF APPROPRIATE SECTION OF NCDOT OVERHEAD UTILITY LINE STANDARD SPECIFICATIONS FOR ROAD AND STRUCTURES (LATEST EDITION). CONCRETE SHALL BE CLASS A OR B. 4000 PSI MINIMUM, MEETING THE REQUIREMENTS OF SECTION 1000, CONSTRUCTED IN ACCORDANCE WITH SECTION 825. MASONRY SHALL MEET THE REQUIREMENTS IPS IRON PIN SET CMU CONCRETE MASONRY UNIT OF SECTION 1040, CONSTRUCTED IN ACCORDANCE WITH SECTION 830 AND/OR 834. RBF REBAR FOUND CPP CORRUGATED PLASTIC PIPE 15. TOPS OF PROPOSED FRAMES AND GRATES SHALL BE FLUSH WITH FINISHED GRADE. OTIPF OPEN TOP IRON PIN FOUND DIP DUCTILE IRON PIPE 16. TINDALL PRE CAST CONCRETE BOXES ARE ACCEPTABLE ALTERNATIVES FOR PROPOSED CATCH BASINS. CTIPF CRIMPED TOP IRON PIN FOUND E&T ELECTRIC & TELEPHONE CMU CONCRETE MASONRY UNIT FOC FIBER OPTIC CABLE R/W RIGHT OF WAY GIP GALVANIZED IRON PIPE CENTERLINE O/H OVERHEAD C CURVE (SEE CURVE TABLE) RCP REINFORCED CONCRETE PIPE U/G UNDERGROUND POE POINT OF BEGINNING VCP VITRIFIED CLAY PIPE CID CALCULATED POINT PVC POLYVINYL CHLORIDE PIPE PB PLAT BOOK FFE FINISHED FLOOR ELEVATION DB DEED BOOK PG PAGE L LINE (SEE LINE TABLE) REF REFERENCE BLDG BUILDING DOT DEPARTMENT OF TRANSPORTATION NGS NATIONAL GEODETIC SYRVEY CIP CAST IRON PIPE NCSP NORTH CAROLINA STATE PLANE CMP CORRUGATED METAL PIPE MTR BOX METER BOX CONIC CONCRETE SIGNED AND DATED: °"a- g-dbyKy1.M�ama PE BOBBY N. SETZER SHEET ,,,,���������,,, 0 DODO R''' o�ooF Ess�o�o 70 zaz o35, ;zzsoaoo STATE FISH HATCHERY RENOVATION NOT TO SCALE Broad Street o% _� =o o ; ¢ < SCO PROJECT # 19-20324-02A GENERAL NOTES AND LEGENDS THIS DOCUMENT HAS BEEN DIGITALLY SIGNED AND SEALED IN ACCORDANCE ®55 Asheville, NC 28801 = o SEAL o = o o _ =� 0 042470 o Z= WITH THE STANDARD CERTIFICATION REQUIREMENTS FOUND IN NC G=003 OFFICE MANAGER DESIGNER 828.252.0575 �'o o;THIS �'oo ADMINISTRATIVE CODE 21-56.1103(E). COMMISSION NC WILDLIFE RESOURCES <\ °o/'GINE; P FOUNDI BIYATHEI NC BOARD OFBEEN M. CATH EY K. SEAMAN'� NC Firm License # C-0459 �i� �/ 00000o S� EXAMINERS FOR ENGINEERS AND PROJECT MANAGER REVIEWER DATE PROJECT# FUNDING# \�� C/�gEL SURVEYORS TO MEET THESE mcgillassociates.com , ���` '����,,,,,,,���` STANDARDS. PLEASE CONTACT THE 1 1/24/2024 BC CONSTRUCTION DOCUMENTS SUBMITTAL #2 TRANSYLVANIA COUNTY NORTH CAROLINA SIGNER IF YOU NEED ASSISTANCE IN NO. DATE BY DESCRIPTION ' K. SEAMAN DECEMBER 2023 19.00124 SCO #19-20324-02A VALIDATING THE SIGNATURE. VEL------\ PLAN IL ZONE A FLOOD BOUNDARY (TYP), EXISTING HATCHERY ENTRANCE SIGN a�5 APPROX 100-YR FLOODPLAIN RV�CE RO PD \\ U S � ORES-� SE EXISTING RACEWAYS (TYP.) -- , \\~��_ ��� / �- - --� � �� \��- ,�'�__ ,\. /.��)/-.•-, % � I �i - _-- - - _ � \ - EXISTING FEED TOWER �`�-- �\-r /, J j r,� r-��=1�-= r �� ,r 1�\ / - _ _- - _ J��\����� EXISTING 24 DIP WATER LINE r \\�` /,� ��_t��_��__ - LJ \ �� //r; -- - -- ���-r��J - =f - ~�\\ -�,� _ - - EXISTING DRAIN LINE, (TYP.) I(��1==_ti�_ 5��r lJ��r 1 EXISTING GENERATOR ` ���r_v �` - _1 ---- v -� °�\ �1 DAVIDSON` - 1\ -mow - r--_ \/� \ ~\\ i \r _ _r ,. `_ � `: -/� !`` ' ` \ / � �i L r -- `^'�1'1_ 1%• - _ _ \ - -ice / j / / // / _ - _- t ... \\ �� '?C"=' �.. Vim ff / �f � 7. --ir=.� - .J y - Jl\l ,i �i zltEXISTING 18 DIP WATER LINE 55 y /�=5� h1��, \� . !=-_ ? n �),1,)�� EXISTING REUSE PUMPy 39 �r ��h �� `� ��- L��"`_ IT-_`�.r n'� �= -� �EXISTING BRIDGE \ \EXISTING DAVIDSON RIVER INTAKE�..-= ~== -° �r\\ti � -, \\� \,��\\\� �I\\ _ I- - }% P t J / / /, PR�E � / ��• %� % � I r ^ v l 7 fl � J 4 \ l'` \ �� \ ~ � / �\ J� - ��� o L \, ' � ��-c � r b i„'� / % 3 ` . , _ r/1 /rOXY w w --w- `.�__ -_ 4 PR� ��11E--_ �, �. � '�`- x1• W- - E _ o? -W- L�- - \ \ e7� / - y _ OXY =ToX I� -\ EXISTING 5,000 GALLON SEPTIC TANK / f ��. �-Y / �4 - J �E tII i 1 , 1`- -_� !l<k _ - " I I11 111 V r EXISTING 5,000 GALLON SEPTIC TANK - DAVIDSON RIVER / i , - 50 SYC. `` EXISTING SHED w- ✓ \\ J / - / 0 1 / t0 \\\\\ \o \ f 1� J° EXISTING POTABLE WELL 2 ��\ \, / -- \ . _.,N -\ ` ti •I ,c.,�ti •,/�r.f-- \\\ \-/�> �-)/-)rti ` - -r=='\ - - E \ ' ' ' 1JIIrJII �It EXISTING POTABLE WELL 1 E EXISTING SEPTIC TANK DIET LAND /-SyORAGE -� � \i �% ) I �/` ° 2 I _i ~y cG J IrC��( \l \ �1 ' /�`-\`� ��"�\�ti�'ti•-- \`�\IJ LJt-) .. z<\ s`` f ,, �'.a� 1 1 � �-c -. `' •J,. %"} � E ., ��X�X---+ \ �- � \ I � \ (1 I I I \ S � ' -_ - - - _ _ = � J //i 1 s s i'v l 1� `\ _ �\\ \ \\\ \ \ \ ` �T-w� \ / J t `ti'l ^� o \ -- - I �" t` ®�\Ill \ ) \ f }o TIs�i LJ�I� :•" 1 ti /-�1 �y s-C-W- \) J / 7� l 0 1 ✓ \ �� v ! /-�, h I TREELtNF, -� _f L r rz �� /J i /• \ 1 r - _ � T t.;�\ \� ✓/�\ �-^ �n\\ i w ��s=._-v1� J .--� 9/ '� J -\• in i \ \\ ( \I r \�\ �1f \�l�)\ `SlY /r\�� ems\-`ll�L�� ` - v s 1 - ! ` v r _���_�� `� \.,�/) \� �, EXISTING RESIDENCE .� L _%z\� EXISTING WORK BUILDING ` e \ ��E- \tiJ f _ - 5 x� 1y' \ - EXISTING PARKING LOT �1�\ \\\ f ti (rl \ °r- y` J ^' ii-J_ "titi'-fir '• •1 5'1 f - - ._ VLF ~ t `'. a ) \ y / / . i \ :..ME� \\ \l __ n s t,J L �}�`c" 1 (r \\._ - `\-� ./r �'l D ° y " , = `r , J J/ b -1 C' \ } �. o ' l f r, r!' / f - Ln v 1 / `i • , - .{J \ .T J \ j__""\\ I / r) �:- - '.. •^'1�\1\t .���L�-_�4= // ��\\ (i�lr ��T- J \ / EXISTING_ SEWER TREATMENT �\\���__ �`�\���z✓���` EXISTING POTABLE WELL %�-/� '�\\�\mil\\1\11�i ���f_lG ti' �`���L\\ a._ ..._ -� ti n r-tir��/�i�.-i.C_i,�_ ABANDONED POTABLE WELL 4 I a� �\� r )~ \ �_.�;,f. / 1 �, , ,1'� L �7 _ L `J• \ Line Table Line # Length Direction L1 70.30 N88° 28' 52.58"W L2 125.42 S84° 10' 02.58"E L3 372.25 S80° 50' 12.58"E L4 270.13 S10° 12' 12.42"W L5 35.06 N89° 21' 34.42"E L6 162.32 N10° 43' 22.42"E L7 351.31 S82° 35' 05.58"E L8 484.47 S84° 09' 21.58"E L9 113.03 S74° 29' 26.58"E L10 129.11 S82° 26' 37.58"E L11 117.22 N78° 28' 43.42"E L12 141.61 N51 ° 43' 16.42"E L13 64.62 N78° 31' 20.42"E L14 193.35 N85° 50' 09.42"E L15 129.65 S84° 07' 16.58"E L16 210.14 S80° 36' 14.58"E L17 293.02 S76° 52' 58.58"E L18 163.53 N88° 45' 54.42"E L19 144.05 N10° 47' 09.42"E L20 290.02 NOY 36' 37.58"W Line Table Line # Length Direction L21 585.42 N84° 37' 17.58"W L22 347.04 N84° 35' 00.58"W L23 323.15 N76° 55' 40.58"W L24 298.05 N29° 53' 09.58"W L25 164.43 NOY 59' 53.58"W L26 109.43 N05° 26' 15.58"W L27 115.61 N08° 07' 29.42"E L28 147.20 N22° 02' 51.42"E L29 122.89 N35° 21' 51.42"E L30 112.53 N37° 38' 40.42"E L31 156.11 N49° 19' 53.42"E L32 127.58 N49° 13' 21.42"E L33 77.98 N20° 57' 08.42"E L34 141.77 N27° 34' 29.42"E L35 41.89 N26° 36' 05.58"W L36 129.06 S56° 00' 07.42"W L37 41.94 S42° 27' 03.42"W L38 231.28 S31 ° 11' 07.42"W L39 0.01 NO2° 10' 19.81 "W L40 114.48 S45° 16' 42.42"W ® 55 Broad Street Asheville, NC 28801 828.252.0575 NC Firm License # C-0459 mcgillassociates.com Line Table Line # Length Direction L41 120.37 S42° 44' 29.42"W L42 122.77 S74° 24' 11.42"W L43 36.65 S81 ° 23' 47.42"W L44 29.74 S27° 33' 34.42"W L45 33.20 SOO' 00' 15.58"E L46 73.30 S33° 55' 39.42"W L47 72.81 S59° 42' 46.42"W L48 39.17 S78° 26' 47.42"W L49 48.31 S62° 28' 09.42"W L50 47.26 S40° 19' 13.42"W L51 44.24 S59° 14' 43.42"W L52 35.55 S74° 28' 47.42"W L53 82.24 S51 ° 29' 53.42"W L54 84.43 S75° 23' 07.42"W L55 72.58 S53° 26' 22.42"W L56 75.53 S43° 38' 31.42"W L57 62.46 S15' 57' 38.42"W L58 122.57 S10' 38' 55.42"W L59 110.64 S09° 28' 55.58"E L60 29.02 SOY 13' 55.42"W o0�/,G SEAL = _ a 042470 a Z = NE���P: //CHAE\-� ��,1111111�� 7 ram' ~\�\ EXISTING GARAGE_ EXISTING RESIDENCE _�jL�f �% (� "_ ' < ` �- ~\ � ` ���\1', ,�, " ® ,�%9'•%:.:���J: ice"^i%S r � �\`� \� f� EXISTING WETLAND STORAGE'_y EXISTING HATCHERY BUILDING \\� \ \\ Line Table Line # Length Direction L61 16.14 S15' 45' 07.42"W L62 24.11 S41 ° 46' 32.42"W L63 42.16 S54° 33' 51.42"W L64 63.81 S76° 44' 31.42"W L65 34.53 N85° 01' 47.58"W L66 93.30 N69° 46' 43.58"W L67 34.67 S30° 43' 11.42"W L68 47.41 S06° 32' 13.42"W L69 195.33 N74° 06' 24.58"W L70 99.82 N31 ° 50' 26.58"W L71 143.79 S79° 02' 10.42"W L72 92.66 S43° 55' 58.00"W L73 69.07 S87° 57' 44.51 "W L74 136.14 S27° 16' 15.44"W L75 153.24 S38° 39' 39.82"E L76 130.54 S11 ° 58' 55.22"E EXISTING GROGAN CREEK INTAKE , ,\ / p l� Z4 SIGNED AND DATED: Digtlally sg.d by Kyla M. Seaman, ��//�.✓�� P.E. CNI D= - Kyl 11 A e 9 IP.Es, PA' com, Dare: 2024,0325 11:12:53-0400 THIS DOCUMENT HAS BEEN DIGITALLY SIGNED AND SEALED IN ACCORDANCE WITH THE STANDARD CERTIFICATION REQUIREMENTS FOUND IN NC ADMINISTRATIVE CODE 21-56.1103(E). THIS DIGITAL SIGNATURE HAS BEEN FOUND BY THE INC BOARD OF EXAMINERS FOR ENGINEERS AND SURVEYORS TO MEET THESE STANDARDS. PLEASE CONTACT THE SIGNER IF YOU NEED ASSISTANCE IN VALIDATING THE SIGNATURE. �� EXISTING CHAIN -LINK "�\ FENCE, (TYP.) r \�\\�Po-�� \lam(\ \`\ � i� - c � y, \ \\ \ J.'1� \ C 11 Ji I 1�U\ it, Y\Ill r \\\\ �1 1l1 IlgvN90��J tA� 1• 111�11 1 q 1111 EXISTING WILDLIFE_ EDUCATION CENTER EXISTING 4,000 GALLON SEPTIC TANKS � /` EXISTING STORAGE_ BUILDINGCWK � �r \`'� XISTING OUTDOOR_ EDUCATION BUILDING �` \\ \ I I ! ill Ill 111 I1y( 1 111 11 !I ! ! )r I Jr 1(I 1 I\\\\\�`ll� l Ill'IIl I Ill lr ;J//f fllflll 1/!1 I I11 11 l 1\1l I \2 < s- 1 1 IIII)>I IIJ lil f) Iill >S J}}I')\�1�\1 N�) )LIII �/� <• { _ �\ � � r�1 � /i- 111111\ l \ �1111 I ll})II�Illilll r r 1 )111111111f11�11Iq, l((III Ilrl�� l /� I � ll? ///J�I/1/lrllll jll (II tll 111111I}Ilt li� �l IM'\ `� ° : r\ �f/�� �'� ��\\\�2\\\�>\ l /��- ! )1)tl �IIII111111111111111111111t1IRI s 'll Jllltl/ ltt�ll(!1 (�j/JII f!// !! �l ! il�ljJ/JIIIJJ(f� /! /�/�',i J)I1�)/J/ dill �}J I 1) 141 l�l�ll-.I`o_, •�� fl„1 .l`'�� t ✓I' //�//�ii / i�// �///� ��l Jf if (r tl� f� Z/// lrll II r� llfr�' \\l,\�iD�J/ /AY( �J/i��� Fri' ��iIJll�c��N�rI c 2 �� I/ / PH J/I �>�''(r(� �.- s�\\\ 'EXISTING DRIP IRRIGATED FIELD J \\y\�moll �\\I ����\\�\�II 111j111 \Illli(I(J�n I o \lj ���`\�• ,, \1llyll I \\II1y)(I / 5�/ !� �^`° �'-�/L,> /per \\ � ,�I / 1 // / lillll L PROPOSED PROJECT USE AREA = 45.08 ACRES �,�\� \\\\�tilll'�'✓! flf !11 I(! l� 51 III 1 Ilr a lilr/AllllI, )1111rlIInI1Jl CfYy ljl JI i) I 1 Jlf/ � I�il%�oi�° � /.)' I Z/ •� �'j� 1 )\ l j/ram I \\ \\ \\ i1 III r ,r - ✓� 1 �,� �ll�/��// / /��� -�.\�� � (I {�y� r I /J / � • \1\ Ily, 11111 J ?J �� �0��11 r/l/•�J /t/ ^� / 1 t I f � J / //s � - -_ _ \p 5 (J r 1 i #//�o•///J Itl(I �(l!lf�lr/1�/J f� � �l�/rr �.�i� �r % �, // //- � � - iilJi�� r//��l//IYfyI//j/l/�'i�ii �/ ! =����\ )5J///22 T)tf )1)I ''���/ Il)11 , / IJ )I�%/1 &1/z � ' r�/J I "I ��IIJI EXISTING GRAVEL DRIVE /a11' ///I�/ >° /I A Va 1 1/24/20241 NC I CONSTRUCTION DOCUMENTS SUBMITTAL #2 NO. DATE BY DESCRIPTION BOBBY N. SETZER STATE FISH HATCHERY RENOVATION SCO PROJECT # 19-20324-02A NC WILDLIFE RESOURCES COMMISSION TRANSYLVANIA COUNTY, NORTH CAROLINA 120 0 60 120 240 GRAPHIC SCALE DIVISION VALUE = 120 FEET OFFICE MANAGER DESIGNER M. CATHEY N. CROOM PROJECT MANAGER REVIEWER K. SEAMAN B. CATHEY OVERALL EXISTING CONDITIONS PLAN DATE PROJECT # FUNDING # OCTOBER 2023 19.00124 SCO #19-20324-02A SHEET CE=1 01 m m O m N 0 PLAN / \ _-- \\ /ROPQ��Fyi \-- ROPa4�5 ZONE A FLOOD BOUNDARY (TYP), Rv�cE APPROX 100-YR FLOODPLAIN — — — — — — FS:!SE EXISTING PARKING LOT TO BE RESURFACED ' o Ir - - --- - -- --- --. --^ \ 25' TROUT STREAM BUFFER (TYP) /"" DAVIDSON RIVER - - - — - _ - - - _ PROPOSED PRODUCTION RACEWAYS — — N — -- —--------- AND COVER STRUCTURE DAVIDSON RIVER - — PROPOSED EQ BASIN— DAVIDSON RIVER DAM AND INTAKE , _ — \ L _ / -- DAVIDSON RIVER — = d e so" Yc. PROPOSED HEAVY SEDIMENT REMOVAL SYSTEM — - -- _- — — _ _A Ad a de e e A A I LLLLLLL d d G e \ d d e_ • O O LLLLLLLL 1 .... 24 0. X X LL LLLLLL \ / L d.LLLLLLLLLLLLLL \ ° PROPOSED HATCHERY BUILDING* SEE X R / �/ �— k ®® — / RIVE -- --- — — — X LLLLLLLLLLLL 1 LLLLLLLLLLLLL - DpVIDSON / — — — LLLLLLLLLLLLLL LLLLLLLLLLLLLLL — / / _/ X x ❑ — LLLLLLLLLLLLLLLLL \1 G s- I \ LLLLLLLLLLLLLLLLL �� J \\/ • •� LLLLLLLLLLLLLLL - - � LLLLLLLLLLLL /--/ X X LLB/ EXISTING BUILDINGS TO REMAINQ- _ EXISTING RESIDENCES TO REMAIN PROPOSED BROODSTOCK RACEWAYS AND COVER STRUCTURE / EXISTING RESIDENCES TO PROPOSED STORMWATER I — \ _� REMAIN I I� � -� � — �.-.CREEK PROPOSED STORAGE BUILDING _ _ / \ / \ — �ROGp". / WET POND -PROPOSED PUBLIC RESTROOM EXISTING BUILDING TO REMAIN EXISTING DOMESTIC WASTE \ TREATMENT SYSTEM (TO REMAIN) C / PROPOSED CONCRETE PAD FOR - - - - - - - - :�j EFFLUENT WASTE TREATMENT PROPOSED PARKING LOTL SPRING \ � — — z �l SPRINGII I. EXISTING GRAVEL ROAD 7 PROPOSED HEAVY SEDIMENT REMOVAL SYSTEM .,REEK DAM AND INTAKE SIGNED AND DATED: ra�K.kM�ama°PE BOBBY N. SETZER 120 0 60 120 240 SHEET N STATE FISH HATCHERY RENOVATION °� " OVERALL SITE PLAN =a 9 ° THIS DOCUMENT HAS BEEN DIGITALLY GRAPHIC SCALE DIVISION VALUE = 120 FEET ® 55 Broad Street = °e SEAL - SIGNED AND SEALED IN ACCORDANCE SCO PROJECT # 19-20324-02A WITH THE STANDARD CERTIFICATION Asheville, NC 28801 - ;5�1 a 042470 a Z = REQUIREMENTS FOUND IN NC OFFICE MANAGER DESIGNER ADMINISTRATIVE CODE E HAS 1103(E). NC WILDLIFE RESOURCES COMMISSION 828.252.0575 F � aTHIS DIGITAL SIGNATURE HAS BEEN ticINE� P; FOUND BY THE INC BOARD OF M. CATHEY N. CROOM C=1 00 NC Firm License # C-0459 �L/°°°°°° \ ` EXAMINERS FOR ENGINEERS AND ''/, HAE\- SURVEYORS TO MEET THESE 1 1 /24/2024 BC CONSTRUCTION DOCUMENTS SUBMITTAL #2 PROJECT MANAGER REVIEWER DATE PROJECT # FUNDING #Ii mcgillassociates.com 011111OO \ STANDARDS. PLEASE CONTACT THE SITRANSYLVANIA COUNTY, NORTH CAROLINA GNER IF YOU NEED ASSISTANCE IN NO. DATE BY DESCRIPTION K. SEAMAN B. CATHEY OCTOBER 2023 19.00124 SCO #19-20324-02A VALIDATING THE SIGNATURE. m m 0 m N 0 z — —�1 Q II � I �11 I / --�� �` —y__ -- ---- _=__ ����— EXISTING STORMWATER CUT EXISTING STORMWATER PIPE BACK 5 BEHIND RIVER 1 �— — — — �`= \—�`-- - PI \ PES TO BE DEMOLISHED TOP OF BANK, PLUG AND ABANDON, REESTABLISH �1—r--' \ �/ \—' / Q <I PLAN _. BANK CONDITIONS, CONTRACTOR TO SEED AND STRAW, =� - I �, �, , — r I I ,�`\ �� �_� REMOVE PUMPS, PLUG AND ABANDON PIPES, OR INSTALL MATTING FOR IMMEDIATE STABILIZATION AS I I /' °� `, II ` FILL AND ABANDON SUMP PIT, CONTRACTOR NECESSARY (TYP) / I ,� r ; TO CUT DOWN CONCRETE STRUCTURE 1 _.� --E-----� --- —E ----E-- —E--- — ` --T-----T -- T— Viol gg MOM / i CUT EXISTING STORMWATER PIPE BACK 5 BEHIND ! EXISTING BUILDING --- _ \,BELOW GROUND, FILL WITH STONE, THEN (T� RIVER TOP OF BANK, PLUG AND ABANDON, TO REMAIN FABRIC LAYER AND COVER WITH SOIL CONTRACTOR TO REESTABLISH BANK CONDITIONS\ _ — x REMOVE EXISTING STONE BASE AND / r—EXISTING ASPHALT I1 � AND SEED AND STRAW, OR INSTALL MATTING EXISTING TRANSFORMER TO \ �� PAVEMENT TO REMAIN II I B11LD1NG �— SUMP EXCAVATE TO SUBGRADE ELEVATION TO II I FOR IMMEDIATE STABILIZATION AS NECESSARY BE DEMOLISHED, SEE ELECTRICAL i I I ` UT LITY BOX t (TYP) PLANS FOR DETAILS I �E PIT I X , ACCOMMODATE NEW ASPHALT PAVING SECTION --E-----E-----E-----E � I-- \` E—--E-----E— —E - ----- -- I I X X XJ PER DETAIL ON SHEET C-151 (TYP HATCH)E-----E-1+— / ---E—--E-----E---- I IE— / I n — E ----E— —F�MR / I \ 11 �� ----E --- +_--E-----E-----E-----E— _T�—E E— E— --E--- �I �l J \ DEMOLISH EXISTING ASPHALT �� —�� �5 / --- ----ii �__rJ l i x PAVEMENT (TYP HATCH) t II >T--- T— — / --T-----��----T-----T----T---��_T-----T-----T--- -- \ rtl —_ I+-- �_--T-----T-----T-----T---����---T—FF---T---- T—��—�fi==---T----� Jam, --- T----T---- T—T-----T-- EXISTING RACEWAYS EXISTING OXYGEN EQUIPMENT I 1 EXISTING LIGHT POLE TO BE \�� \\\ \ EXISTING STORMWATER / \ DEMOLISHED (TYP) SEE EXISTING FENCE EXISTING WATER LINE \ PIPES AND STRUCTURES , TO BE DEMOLISHED i i TO BE DEMOLISHED (TYP) TO BE DEMOLISHED \ J� 11 11 ELECTRICAL PLANS FOR DETAILS TO BE DEMOLISHED TO BE DEMOLISHED y 1 1 , I I EXISTING LIGHT POLE TO BE _�11 II Y DEMOLISHED (TYP), SEE EXISTING CONCRETE CURB ANDELECTRICAL PLANS FOR DETAILSGUTTER TO BE DEMOLISHED (TYP)rXTX�cX�XTar�XTiACTX�rX�XVtV EXISTING LIGHT POLE TO BE DEMOLISHED (TYP), SEE ELECTRICAL PLANS FOR DETAILS — EXISTING FENCE TO BE DEMOLISHED (TYP) \ EXISTING LIGHT POLE TO BE DEMOLISHED (TYP), SEE ELECTRICAL = PLANS FOR DETAILS LP �C_�=ice —X—=X — —��X� v _ _ —X X X X�X— �C 11 �C—i�=X— —C�� S��i��X X X E ---- -- - E E \ 1 \ — \\S _ E=—=—cam= � T=E�^r� T— s sTs s s s s '� s_ ,—_ s — -- s --- _s s — —r—s --S GAZEBO — �_� —r-- s --� — — s � s s s s EXISTING SANITARY ------- --- --- ---- — - — `--� — /,/,;`\ �\ \ _—SEWER LINE TO — — — — XIBENCHIS FISH — FOOD TO BE DEMOLISHED (TYP) REMAIN (TYP) EXISTING LIGHT POLE TO E BE DEMOLISHED (TYP), T SEE ELECTRICAL PLANS I\\ I FOR DETAILS POND P DVVE T D STORAGE � I EXISTING SIDEWALK \ ' I I \__-- —_-- �1 ----- �i J� TO BE DEMOLISHED \ EXISTING FENCE --------------- _— EXISTING BUILDINGS TO REMAIN TO REMAIN — — — — ��F— — — — — — — — — — — — — — ----' / _--- — (TYP), CONTRACTOR TO MAINTAIN \ — — — ;�/ — I— UTILITY CONNECTIONS — --_ — -- - - ----- — — — — — — — — _ — — — — — - — — — — — — — — — — — — — -- — — — — — — — — — — — — — — — — — — — — — ' - GI — \ ---------_EXISTING SANITARY SEWER — ___—'----\-------------- --_ — — GRAVEL GRAV LINE TO REMAIN TYP S �S �� Co G-- G \ / EXISTING SIDEWALK _____ _ I TO REMAIN (TYP) S- --G--- - — — — — — — — — — — — — � ,ems � � G T-----T-----I---- g— —_ — T—----T-- — T— kftRE x—EUILD -- I X X EXISTING HATCHERY i =—S — S BUILDING AND SIDEWALKS TO BE DEMOLISHED, USE APPROPRIATE HAZARDOUS 1 SPIGOT MATERIALS DISPOSAL —�� E.S XISTING SIDEWALK METHODS, ALL EXISTING 0 REMAIN (TYP) UTILITIES WILL BE / 'll — �� REMOVED FROM UNDER I EXISTING \— EXISTING AND PROPOSED BUILDING, SEE SHEET �'^ V\vlI 1 1 I SEPTIC TANKS 1 TO BE C-105 FOR PROPOSED ���_—� �/ L �1\ /� DEMOLISHED BUILDING FOOTPRINT w CONTRACTOR TO PUMP AND HAUL EXISTING SEPTAGE PRIOR / TO REMOVAL SRGC�Li�-' — S� S/ S� 5��,S S S S 1 / i st s s\ s s ��s s s � EXISTING SANITARY SEWER LINE TO REMAIN (TYP) ---T--- SSMH /_1 1 �� SIGN /�/ r 1 /�,, / EXISTING SIDEWALK \,�, \ BENCH (TYP) G EXISTING GAS LINE /// \ 1 1 TO BE DEMOLISHED \\ EXISTING LIGHTPOLE TO TO REMAIN (TYP) / — / / ---D REMAIN, SEE ELECTRICAL UP \ / FO PLANS DETAILS ,\�,/ `�✓� // --_E� / ® _ ��� EXISTING WATER LINE A R TO BE DEMOLISHED (TYP) ��% \ �� COISTING NTRACTORBUILDING REMAIN, TO MAINTAIN UTILITY SIGN i CONNECTIONS TO BUILDING EXISTING SANITARY SEWER \ _ LINE TO REMAIN (TYP) \ \ i \ BENCH s SIGNED AND DATED: E-kresamam�ea�gmmE BOBBY N. SETZER 20 O ,a 20 40 ` N C A R n'/%, ` l%-- °� M« ,= x ne M. s� BUILDING rrm I NOTE SEE ELECTRICAL SHEETS FOR ALL ELECTRICAL AND COMMUNICATIONS ITEMS Q°FESS�°��'�%- THIS DOCUMENT HAS BEEN DIGITALLY STATE FISH HATCHERY RENOVATION GRAPHIC SCALE DIVISION VALUE = 20 FEET PRODUCTION RACEWAY DEMOLITION ■, R 55 Broad Street _ _ SIGNED AND SEALED IN ACCORDANCE SCO PROJECT # 19-20324-02A PLAN (2 OF 2) O a SEAL WITH THE STANDARD CERTIFICATION \ Asheville, NC 28801 - � a 042470 ° Z = REQUIREMENTS FOUND IN NC OFFICE MANAGER DESIGNER Q; ADMINISTRATIVE CODE E HAS 1103(E). NC WILDLIFE RESOURCES COMMISSION 828.252.0575 �°°� THIS DIGITAL SIGNATURE HAS BEEN %F ° NGINE� P; FOUND BY THE INC BOARD OF M. CATHEY N. CROOM NC Firm License # C-0459 �L//°° C,�\ ` EXAMINERS FOR ENGINEERS AND HAE\- SURVEYORS TO MEET THESE 1 1/24/2024 BC CONSTRUCTION DOCUMENTS SUBMITTAL #2 PROJECT MANAGER REVIEWER DATE PROJECT# FUNDING# mcgillassociates.com 01111iiiOO \ STANDARDS. PLEASE CONTACT THE TRANSYLVANIA COUNTY, NORTH CAROLINA SIGNER IF YOU NEED ASSISTANCE IN NO. DATE BY DESCRIPTION K. SEAMAN B. CATHEY OCTOBER 2023 19.00124 SCO #19-20324-02A VALIDATING THE SIGNATURE. SHEET CD=1 081 N 0 \ `- _ ___ , I PLAN EXISTING PLATFORM TO REMAIN-- - ---- I-- - - — — ----- I / EXISTING CONCRETE CURB AND _ - GUTTER TO BE DEMOLISHED -- - --__ �� - II /\- / EXISTING CONCRETE V \ I L EXISTING LIGHT POLE TO - -__ — \-- _ BEECH 30" CURB AND GUTTER I \ _--- —� — I— TOP1. REMAIN, SEE ELECTRICAL TO REMAIN (TYP) PLANS FOR DETAILS - I REMOVE EXISTING STONE BASE AND - - -- R EXCAVATE TO SUBGRADE ELEVATION TO c,'`.� I R- R- R— _ R- - _ / ACCOMMODATE NEW ASPHALT PAVING SECTION PER DETAIL ON SHEET C-151 / EXISTING CONCRETES an I� / (TYP HATCH)-R---R---R---R---R--�R\�-\ \ EXISTING ISLAND AND CONCRETE CURB AND GUTTER TO BE DEMOLISHED gp ♦go�♦�•11 ♦♦ ♦♦ CURB AND GUTTER TO REMAIN (TYP) EXISTING CONCRETE CURB AND GUTTER TO BE DEMOLISHED EXISTING LIGHT POLE TO REMAIN, SEE ELECTRICAL PLANS FOR DETAILS EXISTING CONCRETE CURB AND GUTTER TO REMAIN (TYP) SIGN EXISTING CONCRETE CURB AND GUTTER L �\ - �� \. \ �\ \ TO REMAIN (TYP) �-\A-\ / \ \ \— X\/\ EXISTING CONCRETE CURB AND GUTTER TO BE DEMOLISHED / i 0 / EXISTING UNDERGROUND ELECTRIC TO REMAIN, SEE ELECTRICAL PLANS FOR DETAILS \ 'EXISTING CONCRETE CURB AND GUTTER \ - TO BE DEMOLISHED EXISTING SEPTIC TANKS TO BE DEMOLISHED, CONTRACTOR TO PUMP AND HAUL EXISTING /--' SEPTAGE PRIOR TO REMOVAL / \ EXISTING 8" PVC GRAVITY SEWER FROM / I \ MANHOLE TO EXISTING RECIRCULATION LP �- J I TANK TO BE DEMOLISHED \ I EXISTING RECIRCULATION TANK \ x AND SAND FILTER TO REMAIN EXISTING LIGHT POLE TO _—x_x_x REMAIN, SEE ELECTRICAL PLANS FOR DETAILS EXISTING BUILDING TO REMAIN, x EXISTING FENCE TO REMAIN CONTRACTOR TO MAINTAIN UTILITY \ x CONNECTIONS TO BUILDING 1 / I u� I l s sus s - 5 S � S S - 1 I S Y EXISTING CONCRETE i \ CURB AND GUTTER TO REMAIN (TYP) / SIGN / \ -----/ I \ � EXISTING CONCRETE IZZ \I CURB AND GUTTER TO REMAIN (TYP) Ir ( \ \ EXISTING\ STORMWATER PIPES AND STRUCTURES \ \ \ TO BE DEMOLISHED \ \ \ tI \ EXISTING STORMWATER PIPE E TO \ I \��\ \ / x I I ? TREELIN\ \ BE PLUGGED AND ABANDON / XI j< x-EXISTING ASPHALT PAVEMENT - \� I TO REMAIN x--�—X—x—x—x—x—x— _ _ _\ II / / — \\ �\ j 2335� \ l CHAIN LINK XFENCE x I I I —xrx— r -- - / NOTE SEE ELECTRICAL SHEETS FOR ALL ELECTRICAL AND COMMUNICATIONS ITEMS ® 55 Broad Street Asheville, NC 28801 828.252.0575 NC Firm License # C-0459 mcgillassociates.com CA o0<14 SEAL o= _ a 042470 a Z = 000 \ °�;CINE� oo ItI\HAE\— \ r x I I I\ - _ x \ I SIGNED AND DATED: o;g;�l�, e.K.kM ­P.E. �%u-- CN kM� 11=Ea`PX' . re2—03251714— THIS DOCUMENT HAS BEEN DIGITALLY SIGNED AND SEALED IN ACCORDANCE WITH THE STANDARD CERTIFICATION REQUIREMENTS FOUND IN NC ADMINISTRATIVE CODE 21-56.1103(E). THIS DIGITAL SIGNATURE HAS BEEN FOUND BY THE INC BOARD OF EXAMINERS FOR ENGINEERS AND SURVEYORS TO MEET THESE STANDARDS. PLEASE CONTACT THE SIGNER IF YOU NEED ASSISTANCE IN VALIDATING THE SIGNATURE. 1 1/24/20241 BC I CONSTRUCTION DOCUMENTS SUBMITTAL #2 NO. DATE BY DESCRIPTION BOBBY N. SETZER STATE FISH HATCHERY RENOVATION SCO PROJECT # 19-20324-02A NC WILDLIFE RESOURCES COMMISSION TRANSYLVANIA COUNTY, NORTH CAROLINA 20 0 10 20 40 GRAPHIC SCALE DIVISION VALUE = 20 FEET OFFICE MANAGER DESIGNER M. CATHEY N. CROOM PROJECT MANAGER REVIEWER K. SEAMAN B. CATHEY PARKING LOT AREA DEMOLITION PLAN DATE PROJECT # FUNDING # OCTOBER 2023 19.00124 SCO #19-20324-02A SHEET CD=1 09 ED ED 0 ED N O PLAN 2349 2346 2343 2340 2337 2334 2331 2328 9+00 I `' I o I o PROPOSED EFFLUENT NGS wjL RECIRCULATION �\ i a �\ N: 9 5.5 PUMP STATION 1 : 868 9.011 234 50 / STA. 15+50 PROPOSED I Xrn ` 0 6'x14'x6.75" (3500 �\ A\ \ i "f•� I `` \ GALLON) SEPTIC TANK o I ® (REFER TO DETAILS) T 1 T b S S Sr S b S 0 1 // 1 S S S I S Q .—S—S-_--- S ---5 ---j.5 — — — — �= T_ SS S S _ =I'.. --- -- — GAZEB _`_� ` ------5---- S—� — S'_Jam. 24" .. ® 4 - — — — — — — — — — - -------- \ \_/ I -� � � � `\ � � _ , PROPOSED MH #134 STA. 12+88.28 SEWER PROPOSED WATER LINE E II i �`� LINE TO SEPTIC TANK �i N: 579905.4934-- POND r I i Z J E: 868509.0884 a . �_ �� » \u / - PROPOSED 8 DIP FROM PROPOSED MH #133 ��" J _ — ` r. S �� / 1 �o / x _ _ STA. 10+00.00 SEWER LINE TO 'I ` / , BLDG BATHROOM TO SEPTIC � SEPTIC TANK, CONNECT TO __�� �� i / ��, \� �� ---- - �a N - l \=� O y� - _ TANK I / / J _ _ \ - f' - - - -s- : /I N / / .. / / EXISTING EXISTING SEWER LINE BY _� -- I) !--- / / / --S \ w- / \ DOMESTIC WASTE STA. 15+22 PROPOSED \ - / - - - - SPIGO s S s / s I I TREATMENT SYSTEM REPLACING EXISTING CLEANOUT----___- _ _ S s S s s S II CONNECT TO EXISTING — — — S _w— - I � i' '�I ATE J Fo / F X STA. 14+80 PROPOSED RECIRCULATION TANK -- ---------- -- =o—_o— o— o—o— --- ---- ------__---_ -� G \ \ / / / 6'x14'x7.5" (4000 INV. IN: 2337 --------------\ --- - I I \ �� __w- --�- - ,,� � (-PROPOSED MH #135 _ __J / - �--- -- -----� GALLON SEPTIC TANK I i--- -G\`— l �'w < << STA. 13+79.30 SEWER I G ) I T r c` (REFER TO DETAILS) �, - = � T-- �-��-� - ---- � LINE TO SEPTIC TANK � � -- \ - - - N: 579912.1956 r ) \ \� BENCH (TYPO / E: 868599.8628 y II I , PROPOSED MH #136 STA. 14+60.91 SEWER CHAIN LINK FENCE UP BLDx / _ -- -- I -- �0 I I J I)( LINE TO SEPTIC TANK - UIING N: 579905.05 \ PAI—/ \\ \J�// I �\ y I / E: 868681.15 9+60 PROPOSED WATER LINE F o �L co ® 55 Broad Street Asheville, NC 28801 828.252.0575 NC Firm License # C-0459 mcgillassociates.com F6 i F5 i RACEWAY F F4 i F3 F2 F1 E E � O x co Ld V7 p off) _ N w Uo.j.. z J J — L W !�2a 3� x a) O F- MM 10+20 10+80 � SOU UQ G6 i G5 RACEWAY G H6 ' H5 co RACEWAY H , ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ILI ■ ■ ■ ■ ■ ■ ■ : II �I L 111 f I f i�', 01111111111111 M G2 H2 G1 i PROPOSED MAIN H1 DRAIN LINE PROFILE L SCALE: HORIZ. 1 "= 30' 'rn VERT. 1 "= 3' rn o6 to � O NPM w +. w F- EXISTING GROUND 0 J ' • O O , w-0 o Q �» PROPOSED GRADE ozz 9.99 LF 8" DIP CAD 0.60%-1 -T ~" 81.61 LF 8" DIP @ 10.60% 288-28 LF 8" DIP ® 0.687. /I 11 +40 12+00 SIGNED AND DATED: \ \� CAR / \\ \ N A R 0 ' // E°s°sio : - SEAL = - - Ogbellyageatl by Kyle M. Seaman, P.E. E=ky S, (/// �j///����� E=k la.aeanan@m°�illassociales.wm, / � 1 . V OU Y 0 McGill P , P.E.- PA', 0 CN="Kyk M. Seamen, P.E.' THIS DOCUMENT HAS BEEN DIGITALLY SIGNED AND SEALED IN ACCORDANCE WITH THE STANDARD CERTIFICATION = S\ a 042470 ° Z = REQUIREMENTS FOUND IN NC 1 °°°°°° c��\�\ , CNAE�- \\\ ADMINISTRATIVE CODE 21-56.1103(E). THIS DIGITAL SIGNATURE HAS BEEN FOUND BY THE NC BOARD OF EXAMINERS FOR ENGINEERS AND SURVEYORS TO MEET THESE STANDARDS. PLEASE CONTACT THE SIGNER IF YOU NEED ASSISTANCE IN VALIDATING THE SIGNATURE. 1 1/24/2024 BC CONSTRUCTION DOCUMENTS SUBMITTAL #2 NO. DATE BY DESCRIPTION 4" DI 12" DI PROPOSED SEPTIC TANK aEi aEi II O O x MLoN r� to M x MM N NMn N _ M NMI N � J w HLu J "� + J w H J O LwzO O Lw?O o» � • a) o» Do- V)F-zz M�zz 12+60 13+20 13+80 14+40 BOBBY N. SETZER STATE FISH HATCHERY RENOVATION SCO PROJECT # 19-20324-02A NC WILDLIFE RESOURCES COMMISSION TRANSYLVANIA COUNTY, NORTH CAROLINA 2349 2346 34.79 LF 8" DIP 0 2.14% �2343 r18.12 LF 8" DIP @ 0.66% C� U z w Q C� O z ~ O 00 OU O S-D 17 o0Y O z N M O z + w H �OU + w H J + w H —0XC) — Z T00 QO� 15+00 15+60 30 0 15 30 60 GRAPHIC SCALE DIVISION VALUE = 30 FEET OFFICE MANAGER M. CATHEY DESIGNER K. SEAMAN PROJECT MANAGER K. SEAMAN REVIEWER _ PROPOSED SEPTIC TANK 16+20 2340 2337 2334 2331 2328 16+80 SHEET SEWER TO SEPTIC TANK PLAN - PROFILES C=220 DATE PROJECT # FUNDING # DECEMBER 2023 19.00124 SCO #19-20324-02A APPROVED WARNING TAPE 24' ABOVE PIPE BACKFILL BACKFILL MATERIAL MATERIAL COMPACTED COMPACTED IN 6' LIFTS IN 6' LIFTS i 12' MAX 12' MAX\�� 12' SPRING LINE j` 6' MIN 6' MIN i SPRING LINE 6" OF PIPS ap. �� OF PIPE No.12 COATED .12 COATED NCOPPERR COPPER TRACING j \\ TRACING WIRE 6' MIN �� WIRE �\ WASHED STONE/� \\ ,� ,� WASHED STONE EMBEDMENT //�\/�� EMBEDMENT UNDISTURBED EARTH ADDITIONAL WASHED STONE FOR UNDERCUT j EXCAVATION ONLY AS DIRECTED BY ENGINEER STANDARD EXCAVATION IKI \ A =T f1 f-N A I Pl 1 T 1 f-N A 1 O UNDISTURBED EARTH UNDERCUT EXCAVATION IN UNSTABLE SOILS TYPES NOTE 1. CONSTRUCTION OF TRENCHES SHALL COMPLY WITH ALL FEDERAL, STATE AND LOCAL SAFETY AND HEALTH REGULATIONS WHICH HAVE JURISDICTION AT THE PROJECT SITE. IT IS THE CONTRACTOR'S RESPONSIBILITY TO BE FAMILIAR WITH THE APPLICABLE REGULATIONS AND FOLLOW THEM ACCORDINGLY. 2. PAYMENT FOR ROCK EXCAVATION AND SELECT BACKFILL IN TRENCH SHALL BE FOR ACTUAL QUANTITIES AND SHALL NOT EXCEED THE WIDTH OF TRENCH SHOWN ON THIS DETAIL 3. PAYMENT FOR WASHED STONE UNDERCUT SHALL BE FOR THE LENGTH OF THE TRENCH REQUIRING UNDERCUT X 6" DEPTH INCREMENTS TO THE DEPTH REQUIRED. WATER LINE TRENCHING -WASHED STONE 7/8"0 HOLE 3/4" BOLT - 22 UPDATED MARCH, 2017 NOT TO SCALE NOTE: MOUNTS TO STANDARD 125# FLANGE WITH REDUCE NUMBER OF BOLTS FLANGE 72 MYLAR SELF—ADHESIVE INDICATOR TAPE OPERATOR RED POSITION INDICATOR RING ALUMINUM STEM COVER 18"0 CAST ALUMINUM HAND WHEEL STAINLESS STEEL ACME THREAD RISING STEM OPERATOR AND STEM COVER CL 1/4' ALUMINUM SLIDE GATE DISC TOP OF CONCRETE 1G STIFFENER SIZE — & SPACING AS REQUIRED BY CALCULATIONS s 6 II 0 0 0 0 -z OPENING WIDTH G 1 7 0 0 0 0 0 0 0 0 0 - STAINLESS STEEL STEM COLLAR WITH STAINLESS STEEL SET SCREW HEIGHT WEIR GATE ELEVATION SELF CONTAINED/ FACE —MOUNTED BACKFILL MATERIAL COMPACTED IN 6" LIFTS BACKFILL MATERIAL COMPACTED IN 3" LIFTS No.12 COATED COPPER TRAC WIRE FINISHED GRADE —\ SCH 40 PVC MIN. 1 % SLOPE (TO EXISTING RECIRC TANK) APPROVED WARNING TAPE 24" ABOVE PIPE BACKFILL MATERIAL COMPACTED IN 6" LIFTS ",12" MAX BACKFILL MATERIAL 6" MIN COMPACTED IN 3" LIFTS — No.12 COATED — COPPER TRACING WIRE EARTHv"y�v BELL HOLES NOT SHOWN STANDARD EXCAVATION UNDISTURBED J 6"J EARTH OVERCUT EXCAVATION NOTE: 1. CONSTRUCTION OF TRENCHES SHALL COMPLY WITH ALL FEDERAL, STATE AND LOCAL SAFETY AND HEALTH REGULATIONS WHICH HAVE JURISDICTION AT THE PROJECT SITE. IT IS THE CONTRACTOR'S RESPONSIBILITY TO BE FAMILIAR WITH THE APPLICABLE REGULATIONS AND FOLLOW THEM ACCORDINGLY. 2. PAYMENT FOR ROCK EXCAVATION AND SELECT BACKFILL IN TRENCH SHALL BE FOR ACTUAL QUANTITIES AND SHALL NOT EXCEED THE WIDTH OF TRENCH SHOWN ON THIS DETAIL. WATER LINE TRENCHING UPDATED MARCH, 2017 NOT TO SCALE PROVIDE GRADE RINGS TO BRING ACCESS COVERS TO ABOVE GRADE 4" GRAVITY SERVICE LINE FROM BUILDING PER NC BUILDING CODE (INV ELEV 2237.5 FOR 3500 GAL TANK) (INV ELEV 2238 FOR 4000 GAL TANK) I I I EXrR SET SCREW ALUMINUM ° SHOD MODEL RROVED i i STIFFENER BULB SEAL WEDGE TYPE EQUAL PRE -CAST �_JI STAINLESS STEEL CONCRETE SEPTIC TANK EXPANSION BOLTS :a `' ' :° ° WITH H-20 LOADING. YOKE ON SIDES ° .°....°. ' a EFFLUENT FILTER ` POLYLOK PL-525 1"0 3" MIN .tl . OR APPROVED EQUAL a RATED AT 7500 GPD INLET BAFFLE PIPING — 3„ — ER — ° BULB SEAL 3"a MIN. c� :.::: d a SLIDE GATE DISC ° SELF —DRILL TYPE ANCHOR WITH % 1/4" ALUMINUM °' ��t ° • °• UHMWPE ANTI— ' ` ` STAINLESS STEEL HEX HEAD BOLT & FRICTION GUIDES 1 7/8" " < ° WASHER ON BOTTOM OR TOP APPLICATIONS °d ° ° a CRUSHED STONE OR GRAVEL GROUT EXTRUDED ALUMINUM EXTRUDED ALUMINUM 14 1 /2" SLIDE GATE GUIDE STIFFENER SEATV THRUST NUT SECTION G-G SIDE VIEW SECTION H-H ELEVATION VIEW MUD VALVE DETAIL NOT TO SCALE NOTES: • MUD VALVES SHALL BE DESIGNED TO BE OPERATED WITH AN OPERATING WRENCH. MUD VALVES SHALL BE PROVIDED WITH 2" OPERATOR NUT. • MUD VALVE MANUFACTURER SHALL PROVIDE A MINIMUM OF TEN (10) OPERATING WRENCHS IN LENGTHS SPECIFICALLY DESIGNED FOR THE PROJECT APPLICATION. • MUD VALVES WITH WELDED —ON YOKES AND/OR WITH LUG STYLE BODIES WILL NOT BE ACCEPTABLE. • MUD VALVES TO BE ALL 304 STAINLESS STEEL COMPONENTS. • DIMENSIONS SHOWN ARE TYPICAL FOR 8" MUD VALVE. • REFER TO PLANS FOR ACTUAL MUD VALVE SIZES. • MUD VALVES SHALL BE TRUMBULL, TROY, OR APPROVED EQUAL. ALTHOUGH THE AFOREMENTIONED MANUFACTURERS ARE APPROVED, THEY MUST MEET ALL REQUIREMENTS OF THE DETAIL HEREIN. COMPLETE APPROVAL SHOP DRAWINGS MUST BE PROVIDED. M WEIR GATE DETAIL 73 UPDATED MARCH, 2017 NOT TO SCALE PRECAST CONCRETE SEPTIC TANK TYPICAL SEPTIC TANK DETAILS UPDATED JULY, 2023 NOT TO SCALE SIGNED AND DATED: °alNs,ge°byKY�M.S.... P.E. BOBBY N. SETZER SHEET D :`us, N° ssRo��,, % �I1-- oae?o o @71aas0400 NOT TO SCALE °oFE �o�° STATE FISH HATCHERY RENOVATION R 55 Broad Street _° 9 0 THIS DOCUMENT HAS BEEN DIGITALLY MISCELLANEOUS WATER DETAILS o _ SEAL _ SIGNED AND SEALED IN ACCORDANCE SCO PROJECT # 19-20324-02A % _ WITH THE STANDARD CERTIFICATION Asheville, NC 28801 = � 0 042470 ° Z = REQUIREMENTS FOUND IN NC OFFICE MANAGER DESIGNER 828.252.0575 °ot °' ��` THIS INDIS DIGITAL SIGNATURE I HAS 1BEENE> NC WILDLIFE RESOURCES COMMISSION M. CATH EY K. SEAMAN C=902 NC Firm License # C-0459 �'� ° N;INE�°° P FOUND BY THE NC BOARD OF ��''� �EXAMINERS FOR C/IAE\- S `�`� SURVEYORS TO MEETNEERS THESEAND 1 1/24/2024 BC CONSTRUCTION DOCUMENTS SUBMITTAL #2 PROJECT MANAGER REVIEWER DATE PROJECT # FUNDING # mcgillassociates.com STANDARDS. PLEASE CONTACT THE TRANSYLVANIA COUNTY' NORTH CAROLINA SIGNER IF YOU NEED ASSISTANCE IN VALIDATING THE SIGNATURE. NO. DATE BY DESCRIPTION K. SEAMAN DECEMBER 2023 19.00124 SCO #19-20324-02A TECHNICAL SPECIFICATIONS BOBBY N. SETZER FISH HATCHERY ON -SITE WASTEWATER PERMIT MODIFICATION NORTH CAROLINA WILDLIFE RESOURCE COMMISION TRANSYLVANIA COUNTY, NORTH CAROLINA KYLE M. SEAMAN, PE mcgill 55 Broad Street Asheville, NC, 28801 828.252.0575 NC Firm License No.: C-0459 MARCH 2O24 PROJECT NO. 19.00124 .Ito III III#,,Opp, S ' UU 042470 o; Zu7-1 c- . GP��� f, C.h a e „IINESSQ00' NORTH CAROLINA WILDLIFE RESOURCES COMMISSION BOBBY N. SETZER STATE FISH HATCHERY RENOVATION SCO ID # 19-20324-02 TABLE OF CONTENTS 11 DIVISION 31 -EARTHWORK 311000 SITE CLEARING 312000 EARTH MOVING DIVISION 33 -UTILITIES 333100 SANITARY SEWER PIPE AND APPURTENANCES 3/7/2024 TOC-1 PROJECT # 19.00124 SECTION 311000 SITE CLEARING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including Modified General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Protecting existing vegetation to remain. 2. Removing existing vegetation. 3. Clearing and grubbing. 4. Stripping and stockpiling topsoil. 5. Removing above- and below -grade site improvements. 6. Disconnecting, capping or sealing, and abandoning site utilities in place. 7. Temporary erosion and sedimentation control measures. B. Related Sections: 1. Division 01 Section "Temporary Facilities and Controls" for temporary utility services, construction and support facilities, security and protection facilities, and temporary erosion and sedimentation control measures. 2. Division 01 Section "Execution" for field engineering and surveying. 3. Division 01 Section "Construction Waste Management and Disposal". 4. Division 02 Section "Demolition" for demolition of buildings, structures, and site improvements. 5. Division 02 Section "Selective Demolition" for partial demolition of buildings or structures. 1.3 DEFINITIONS A. Subsoil: All soil beneath the topsoil layer of the soil profile, and typified by the lack of organic matter and soil organisms. B. Surface Soil: Soil that is present at the top layer of the existing soil profile at the Project site. In undisturbed areas, the surface soil is typically topsoil; but in disturbed areas such as urban environments, the surface soil can be subsoil. OCTOBER 2023 Project # 19.00124 311000 — Page 1 C. Topsoil: Top layer of the soil profile consisting of existing native surface topsoil or existing in -place surface soil and is the zone where plant roots grow. D. Plant -Protection Zone: Area surrounding individual trees, groups of trees, shrubs, or other vegetation to be protected during construction, as indicated on Drawings or as designated by the Engineer. E. Tree -Protection Zone: Area surrounding individual trees or groups of trees to be protected during construction, as indicated on Drawings or as designated by the Engineer. F. Vegetation: Trees, shrubs, groundcovers, grass, and other plants. 1.4 MATERIAL OWNERSHIP A. Except for stripped topsoil and other materials indicated to be stockpiled or otherwise remain Owner's property, cleared materials shall become Contractor's property and shall be removed from Project site. B. Timber, steel and other merchantable materials removed incidental to clearing and grubbing shall remain the property of the Owner unless otherwise directed. 1.5 SUBMITTALS A. Existing Conditions: Documentation of existing trees and plantings, adjoining construction, and site improvements that establishes preconstruction conditions that might be misconstrued as damage caused by site clearing. 1. Use sufficiently detailed photographs or videotape. 2. Include plans and notations to indicate specific wounds and damage conditions of each tree or other plants designated to remain. B. Record Drawings: Identifying and accurately showing locations of capped utilities and other subsurface structural, electrical, and mechanical conditions. 1.6 PROJECT CONDITIONS A. Traffic: Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during site -clearing operations. 1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction. 2. Provide alternate routes around closed or obstructed traffic ways if required by Owner or authorities having jurisdiction. OCTOBER 2023 Project # 19.00124 311000 — Page 2 B. Work on Adjoining Property: Work on adjoining property will be not permitted without the written consent of the property owner and the Engineer. This shall include, but not limited to temporary access to the Work, storage of materials and any ground disturbing activities. C. Salvable Improvements: Carefully remove items indicated to be salvaged and store on Owner's premises. D. Utility Locator Service: Notify appropriate utility locator services for area where Project is located a minimum of 72 hours prior to commencing site clearing activities. E. Do not commence site clearing operations until temporary erosion and sedimentation control and plant/tree protection measures are in place. F. The following practices are prohibited within protection zones: 1. Storage of construction materials, debris, or excavated material. 2. Parking vehicles or equipment. 3. Foot traffic. 4. Erection of sheds or structures. 5. Impoundment of water. 6. Excavation or other digging unless otherwise indicated. 7. Attachment of signs to or wrapping materials around trees or plants unless otherwise indicated. G. Do not direct vehicle or equipment exhaust towards protection zones. H. Prohibit heat sources, flames, ignition sources, and smoking within or near protection zones. I. Soil Stripping, Handling, and Stockpiling: Perform only when the topsoil is dry or slightly moist. PART 2 - PRODUCTS 2.1 MATERIALS A. Satisfactory Soil Material: Requirements for satisfactory soil material are specified in Division 31 Section "Earth Moving." 1. Obtain approved borrow soil material off -site when satisfactory soil material is not available on -site. OCTOBER 2023 Project # 19.00124 311000 — Page 3 PART 3 - EXECUTION 3.1 PREPARATION A. Protect and maintain benchmarks and survey control points from disturbance during construction. B. Locate and clearly identify trees, shrubs, and other vegetation to remain or to be relocated. Wrap a 1-inch blue vinyl tie tape flag around each tree trunk at 54 inches above the ground. C. Protect existing site improvements to remain from damage during construction. 1. Restore damaged improvements to their original condition, as acceptable to Owner. 3.2 TEMPORARY EROSION AND SEDIMENTATION CONTROL A. Provide temporary erosion and sedimentation control measures to prevent soil erosion and discharge of soil -bearing water runoff or airborne dust to adjacent properties and walkways, according to erosion and sedimentation control Drawings and requirements of authorities having jurisdiction. B. Verify that flows of water redirected from construction areas or generated by construction activity do not enter or cross protection zones. C. Inspect, maintain, and repair erosion and sedimentation control measures during construction until permanent vegetation has been established. D. Upon the establishment of permanent vegetative covers, remove erosion and sedimentation controls and restore and stabilize areas disturbed during removal. 3.3 TREE AND PLANT PROTECTION A. General: Protect trees and plants remaining on -site (including root structure) to avoid injury. B. Enclose the trunks of trees which are to remain adjacent to the work with substantial wooden boxes of such height as may be necessary to protect them from piled material, equipment or equipment operation. Use excavating machinery and cranes of suitable type and operate the equipment with care to prevent injury to remaining tree trunks, roots, branches and limbs. C. Do not cut branches, limbs, and roots except by permission of the Engineer. Cut smoothly and neatly without splitting or crushing. In case of cutting or OCTOBER 2023 Project # 19.00124 311000 — Page 4 unavoidable injury to branches, limbs, and trunks of trees, neatly trim the cut or injured portions and cover with an application of grafting wax and tree healing paint as directed. D. Protect by suitable means all cultivated hedges, shrubs and plants that might be injured by the Contractor's operations. Promptly heel in any such trees or shrubbery necessary to be removed and replanted. Perform heeling in and replanting under the direction of a licensed and experienced nurseryman. Replant in their original position all removed shrubbery and trees after construction operations have been substantially completed and care for until growth is reestablished. E. Replace cultivated hedges, shrubs, and plants injured to such a degree as to affect their growth or diminish their beauty or usefulness, by items of kind and quality at least equal to the kind and quality existing at the start of the work. 3.4 EXISTING UTILITIES A. Locate, identify, and disconnect utilities indicated to be removed or abandoned in place. B. Interrupting Existing Utilities: Do not interrupt utilities serving facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated: 1. Notify Engineer not less than three (3) days in advance of proposed utility interruptions. 2. Do not proceed with utility interruptions without Engineer's written permission. C. Excavate for and remove underground utilities indicated to be removed. 3.5 CLEARING AND GRUBBING A. Clearing and grubbing shall consist of the removal and satisfactory disposal of all trees, brush, stumps, logs, grass, weeds, roots, decayed vegetable matter, posts, fences, stubs, rubbish and all other objectionable matter resting on or protruding through the original ground surface and occurring within the construction limits or right of way of any excavation, borrow area, or embankment. B. Remove obstructions, trees, shrubs, and other vegetation to permit installation of new construction. OCTOBER 2023 Project # 19.00124 311000 — Page 5 1. Do not remove trees, shrubs, and other vegetation indicated to remain or to be relocated. 2. Grind down stumps and remove roots, obstructions, and debris to a depth of 18 inches below exposed subgrade. 3. Use only hand methods for grubbing within protection zones. 4. Chip removed tree branches and stockpile in approved areas, if approved by Engineer, or dispose of off -site. C. The work of clearing shall only be performed within the limits established by the plans, specifications, or the Engineer. D. Clearing shall consist of the felling and cutting up, or the trimming of, trees and the satisfactory disposal of the trees and other vegetation together with the down timber, snags, brush and rubbish occurring within the areas to be cleared. Trees and other vegetation, except such individual trees, groups of trees, and vegetation, as may be indicated on the plans to be left standing, and all stumps, roots and brush in the areas to be cleared shall be cut off 6 inches above the original ground surface. E. Individual trees and groups of trees designated to be left standing within cleared areas shall be trimmed of all branches to such heights and in such manner as may be necessary to prevent interference with construction operations. All limbs and branches required to be trimmed shall be neatly cut close to the whole of the tree or to main branches, and the cuts thus made shall be painted with an approved tree wound paint. Individual trees, groups of trees, and other vegetation, to be left standing shall be thoroughly protected from damage incident to construction operations by the erection of barriers or by such other means as the circumstances require. F. The Engineer will designate all areas of growth or individual trees which are to be preserved due to their desirability for landscape or erosion control purposes. When the trees to be preserved are located within the construction limits, they will be shown on the plans or designated by the Engineer. G. Clearing operations shall be conducted so as to prevent damage by falling trees to trees left standing, to existing structures and installations, and to those under construction, and so as to provide for the safety of employees and others. When such damages occur, all damaged areas shall be repaired, removed or otherwise resolved utilizing generally accepted practices at the Contractor's expense. H. Grubbing shall consist of the removal and disposal of all stumps, roots and matted roots from all cleared areas, except as herein specified. I. In embankment areas, when the depth of embankment exceeds 42 inches in height sound stumps shall be cut off not more than 6 inches above the existing OCTOBER 2023 Project # 19.00124 311000 — Page 6 ground level and not grubbed. Unsound or decayed stumps shall be removed to a depth of approximately 2 feet below the natural ground surface. J. Fill depressions caused by clearing and grubbing operations with satisfactory soil material unless further excavation or earthwork is indicated. 1. Place fill material in horizontal layers not exceeding a loose depth of 8 inches and compact each layer to a density equal to adjacent original ground. K. Clearing and grubbing operations shall be completed sufficiently in advance of grading operations as may be necessary to prevent any of the debris from the clearing and grubbing operations from interfering with the excavation or embankment operations. All work under this section shall be performed in a manner which will cause minimum soil erosion. The Contractor shall perform such erosion control work, temporary or permanent, as may be directed by the Engineer in order to satisfactorily minimize erosion resulting from clearing and grubbing operations. 3.6 TOPSOIL STRIPPING A. Remove sod and grass before stripping topsoil. B. Strip topsoil to a depth of 6 inches in a manner to prevent intermingling with underlying subsoil or other waste materials. 1. Remove subsoil and non -soil materials from topsoil, including clay lumps, gravel, and other objects more than 2 inches in diameter; trash, debris, weeds, roots, and other waste materials. C. Stockpile topsoil away from edge of excavations without intermixing with subsoil. Grade and shape stockpiles to drain surface water. Cover to prevent windblown dust and erosion by water. 1. Limit height of topsoil stockpiles to 72 inches. 2. Do not stockpile topsoil within protection zones. 3. Dispose of surplus topsoil. Surplus topsoil is that which exceeds quantity indicated to be stockpiled or reused. 4. Stockpile surplus topsoil to allow for respreading deeper topsoil. 3.7 SITE IMPROVEMENTS A. Remove existing above and below -grade improvements as indicated and necessary to facilitate new construction. B. Remove slabs, paving, curbs, gutters, and aggregate base as indicated. OCTOBER 2023 Project # 19.00124 311000 — Page 7 1. Unless existing, full -depth joints coincide with line of demolition, neatly saw -cut along the line of existing pavement to remain before removing adjacent existing pavement. Saw -cut faces vertically. 2. Paint cut ends of steel reinforcement in concrete to remain with two coats of antirust coating, following coating manufacturer's written instructions. Keep paint off surfaces that will remain exposed. C. If items are shown on the plans to be fully or partially removed and replaced, those existing improvements shall be carefully disassembled and/or removed as necessary to permit construction, safely stored by the Contractor to prevent harm to the materials, then following construction, reassembled in the original location in a manner that matches the assembly prior to its removal. 3.8 DISPOSAL OF SURPLUS AND WASTE MATERIALS A. Timber, steel and other merchantable goods and materials removed incidental to clearing and grubbing shall remain the property of individual property owners. unless otherwise directed. B. Remove surplus soil material, unsuitable topsoil, obstructions, demolished materials, and waste materials including trash and debris, and legally dispose of them off site. C. Separate recyclable materials produced during site clearing from other non - recyclable materials. Store or stockpile without intermixing with other materials and transport them to recycling facilities. Do not interfere with other Project work. D. All combustible matter shall be deposited at locations approved by authorities having jurisdiction. Combustible matter may be burned (with written approval of authorities having jurisdiction) or may be disposed of as stated above. E. Debris shall not be burned unless written permission or permit is issued by the Fire Marshall or other entity having jurisdiction. The Contractor shall adhere to all limitations and conditions set forth in the permit. F. Burning shall be done at such time and in such a manner as to prevent fire from spreading and to prevent any damage to adjacent cover and shall further be subject to all requirements of agencies having jurisdiction pertaining to the burning. Disposal by burning shall be kept under constant attendance until all fires have burned out or have been extinguished. END OF SECTION 311000 OCTOBER 2023 Project # 19.00124 311000 — Page 8 SECTION 312000 EARTH MOVING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including Modified General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Preparing subgrades for buildings, structures, slabs -on -grade, walks, pavements, turf and grasses, and plants. 2. Excavating and backfilling for buildings and structures. 3. Drainage course for concrete slabs -on -grade. 4. Subbase and base courses for concrete walks, and pavements and asphalt paving. 5. Subsurface drainage backfill for walls and trenches. 6. Excavating and backfilling trenches for utilities and pits for buried utility structures. B. Related Sections: 1. Division 01 Sections "Construction Progress Documentation" and "Photographic Documentations" for recording preexcavation and earth moving progress. 2. Division 01 Section "Temporary Facilities and Controls" for temporary controls, utilities, and support facilities; also for temporary site fencing if not in another Section. 3. Division 03 Section "Cast -in -Place Concrete" for granular course if placed over vapor retarder and beneath the slab -on -grade. 4. Divisions 21, 22, 23, 26, 27, 28, and 33 Sections for installing underground mechanical and electrical utilities and buried mechanical and electrical structures. 5. Division 31 Section "Site Clearing" for site stripping, grubbing, stripping and stockpiling topsoil, and removal of above and below -grade improvements and utilities. 6. Division 32 Section "Turf and Grasses" for finish grading in turf and grass areas, including preparing and placing planting soil for turf areas. 7. Division 32 Section "Plants" for finish grading in planting areas and tree and shrub pit excavation and planting. OCTOBER 2023 Project # 19.00124 312000 — Page 1 1.3 SITE CONDITIONS A. Site Information: Unless otherwise indicated in the Contract Documents, no subsurface test results are available for this project. Test borings and other exploratory operations may be undertaken by the Contractor at their own expense, provided such operations are acceptable to the Owner and authorities having jurisdiction. B. The Contract Documents may contain a Geotechnical Report in the appendix of these documents. When that is the case, all recommendations contained in the Geotechnical Report shall be implemented by the Contractor as described in that document. C. Where boring logs and related information are included in the Geotechnical Report, this information depicts approximate subsurface conditions only at these specific locations and at the particular time designated on the logs. Subsurface conditions at other locations may differ from those reported at the boring locations. It is expressly understood that neither the Owner nor the Engineer will be responsible for interpretations or conclusions drawn from the boring data by the Contractor. The data are made available for the convenience of the Contractor. Additional test borings and other exploratory operations may be undertaken by the Contractor at his own expense provided such operations are acceptable to the Owner and authorities having jurisdiction. 1.4 DEFINITIONS A. Backfill: Soil material or controlled low -strength material used to fill an excavation. 1. Initial Backfill: Backfill placed beside and over pipe in a trench, including haunches to support sides of pipe. 2. Final Backfill: Backfill placed over initial backfill to fill a trench. B. Base Course: Aggregate layer placed between the subbase course and hot - mix asphalt paving. C. Bedding Course: Aggregate layer placed over the excavated subgrade in a trench before laying pipe. D. Borrow Soil: Satisfactory soil imported from off -site for use as fill or backfill. E. Cohesionless Materials: Include poorly and well graded gravels (GP and GW) and poorly and well graded sands (SIP and SW). Cohesionless soils are generally regarded as free draining. F. Cohesive Materials: Clayey gravels (GC), clayey sands (SC), lean clays (CL), fat clays (CH), silts (ML and MH), and organic (GM) and silty sands (SM) will be OCTOBER 2023 Project # 19.00124 312000 — Page 2 considered cohesionless only when the fines have a plastic index of 0. Otherwise they will be considered cohesive. G. Drainage Course: Aggregate layer supporting the slab -on -grade that also minimizes upward capillary flow of pore water. H. Excavation: Removal of material encountered above subgrade elevations and to lines and dimensions indicated for footings, foundations, pipework and other construction as shown on the Drawings. 1. Authorized Additional Excavation: Excavation below subgrade elevations or beyond indicated lines and dimensions as directed by Engineer. Authorized additional excavation and replacement material will be paid for according to Contract provisions for unit prices or changes in the Work as appropriate. 2. Bulk Excavation: Excavation more than 10 feet in width and more than 30 feet in length. 3. Unauthorized Excavation: Excavation below subgrade elevations or beyond indicated lines and dimensions without direction by Engineer. Unauthorized excavation, as well as remedial work directed by Engineer, shall be without additional compensation. Fill: Soil materials used to raise existing grades. J. Rock: Rock material in beds, ledges, unstratified masses, conglomerate deposits, and boulders of rock material that exceed 1 cu. yd. for bulk excavation or 3/4 cu. yd. for footing, trench, and pit excavation that cannot be removed by rock excavating equipment equivalent to the following in size and performance ratings, without systematic drilling, ram hammering, ripping, or blasting, when permitted: 1. Excavation of Footings, Trenches, and Pits: Late -model, track -mounted hydraulic excavator; equipped with a 42-inch- wide, maximum, short -tip - radius rock bucket; rated at not less than 138-hp flywheel power with bucket -curling force of not less than 28,700 Ibf and stick -crowd force of not less than 18,400 Ibf with extra -long reach boom; measured according to SAE J-1179. 2. Bulk Excavation: Late -model, track -mounted loader; rated at not less than 230-hp flywheel power and developing a minimum of 47,992-Ibf breakout force with a general-purpose bare bucket; measured according to SAE J- 732. K. Rock: Rock material in beds, ledges, unstratified masses, conglomerate deposits, and boulders of rock material 3/4 cu. yd. or more in volume that exceed a standard penetration resistance of 100 blows/2 inches when tested by a geotechnical testing agency, according to ASTM D 1586. OCTOBER 2023 Project # 19.00124 312000 — Page 3 L. Select Backfill: Backfill and fill material that is transported to the site from outside the project limits, and which meets the soil requirements specified herein as satisfactory materials. Material excavated in conjunction with the construction of this project cannot be considered as "select backfill" for payment purposes. M. Structures: Buildings, footings, foundations, retaining walls, slabs, tanks, curbs, mechanical and electrical appurtenances, or other man-made stationary features constructed above or below the ground surface. N. Subbase Course: Aggregate layer placed between the subgrade and base course for hot -mix asphalt pavement, or aggregate layer placed between the subgrade and a cement concrete pavement or a cement concrete or hot -mix asphalt walk. O. Subgrade: Uppermost surface of an excavation or the top surface of a fill or backfill immediately below subbase, drainage fill, drainage course, or topsoil materials. P. Utilities: On -site underground pipes, conduits, ducts, and cables, as well as underground services within buildings. 1.5 SUBMITTALS A. Product Data: For each type of the following manufactured products required: 1. Geotextiles. 2. Flowable Fill (Controlled low -strength material), including design mixture. 3. Warning tapes. B. Material Test Reports: For each on -site and borrow soil material proposed for fill and backfill as follows: 1. Classification according to ASTM D 2487. 2. Laboratory compaction curve according to ASTM D 698. C. Blasting plan approved by authorities having jurisdiction. D. Seismic survey report from seismic survey agency. E. Preexcavation Photographs or Videotape: Show existing conditions of adjoining construction and site improvements, including finish surfaces that might be misconstrued as damage caused by earth moving operations. Submit before earth moving begins. OCTOBER 2023 Project # 19.00124 312000 — Page 4 1.6 QUALITY ASSURANCE A. Blasting: Comply with applicable requirements in NFPA 495, "Explosive Materials Code," and prepare a blasting plan reporting the following: 1. Types of explosive and sizes of charge to be used in each area of rock removal, types of blasting mats, sequence of blasting operations, and procedures that will prevent damage to site improvements and structures on Project site and adjacent properties. 2. Seismographic monitoring during blasting operations. B. Seismic Survey Agency: An independent testing agency, acceptable to authorities having jurisdiction, experienced in seismic surveys and blasting procedures shall be provided and paid for by the Contractor to perform the following services: 1. Report types of explosive and sizes of charge to be used in each area of rock removal, types of blasting mats, sequence of blasting operations, and procedures that will prevent damage to site improvements and structures on Project site and adjacent properties. 2. Seismographic monitoring during blasting operations. C. Geotechnical Testing Agency: A geotechnical testing firm will be selected by the Owner to provide construction material testing services as required for the project. D. All work associated with this Section shall comply with latest edition of the North Carolina Department of Transportation, Standard Specifications for Roads and Structures where those requirements are more stringent than those specified herein. E. All work associated with this Section shall comply with the latest edition of the North Carolina Department of Environment and Natural Resources, Erosion and Sediment Control Planning and Design Manual. F. Comply with all pollution control rules, regulations, ordinances, and statutes which apply to any work performed under the Contract, including any air pollution control rules, regulations, ordinances and statutes, or any municipal regulations pertaining to air pollution. G. During the progress of the work, maintain the area of activity, including sweeping and sprinkling of streets as necessary, so as to minimize the creation and dispersion of dust. If the Engineer determines that it is necessary to use calcium chloride or more effective dust control, furnish and spread the material, as directed, and without additional compensation. OCTOBER 2023 Project # 19.00124 312000 — Page 5 1.7 PROJECT CONDITIONS A. Traffic: Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during earth moving operations. 1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction. 2. Provide alternate routes around closed or obstructed traffic ways if required by Owner or authorities having jurisdiction. B. Improvements on Adjoining Property: Authority for performing earth moving indicated on property adjoining Owner's property will be obtained by Owner before award of Contract. 1. Do not proceed with work on adjoining property until directed by Engineer. C. Utility Locator Service: Notify appropriate utility locator services for area where Project is located before beginning earth moving operations. D. Do not commence earth moving operations until tree and plant -protection measures are in place. E. The following practices are prohibited within protection zones: 1. Storage of construction materials, debris, or excavated material. 2. Parking vehicles or equipment. 3. Foot traffic. 4. Erection of sheds or structures. 5. Impoundment of water. 6. Excavation or other digging unless otherwise indicated. 7. Attachment of signs to or wrapping materials around trees or plants unless otherwise indicated. F. Do not direct vehicle or equipment exhaust towards protection zones. G. Prohibit heat sources, flames, ignition sources, and smoking within or near protection zones. PART 2 - PRODUCTS 2.1 SOIL MATERIALS A. General: Provide borrow soil materials when sufficient satisfactory soil materials are not available from excavations. B. Borrow material shall be selected to meet the requirements and conditions of the particular fill for which its use is intended. Sand clay soils shall be capable OCTOBER 2023 Project # 19.00124 312000 — Page 6 of being readily shaped and compacted to the required densities, and shall be free of roots, trash, and other deleterious material. Unless specifically provided, no borrow shall be obtained within the limits of the project site without written approval. Borrow shall meet the same requirements as other onsite materials as specified herein. C. The Contractor shall place only borrow material that has been specifically identified as acceptable for this section, unless otherwise directed by the Engineer. D. Satisfactory Soils: Soil Classification Groups GW, GP, GM, SW, SP, CL, ML, and SM according to ASTM D 2487 or Groups A-1, A-2-4, A-2-5, and A-3 according to AASHTO M 145, or a combination of these groups; free of masonry, rock or boulders larger than 4 inches in any dimension, and free of metal, gypsum, lime, debris, waste, frozen materials, vegetation, and other deleterious matter, unless otherwise specified. 1. Organically contaminated soils must be removed from the area of grading operations. At the discretion of the Engineer, topsoil within the area to be stripped shall be stockpiled in a convenient area, selected by the Engineer, for later use in planting areas. All topsoil shall be graded by the Engineer as suitable and shall be stockpiled separately as directed by the Engineer in the field. 2. Soft or excessively yielding material shall be removed and replaced with inert controlled fill. 3. All roots, organic matter, trash, debris, and other unsuitable materials that may find their way into otherwise acceptable fill material shall be removed during the dumping and spreading operations. 4. Fill material shall have a minimum laboratory dry weight, ASTM D-698, of at least 100 pounds per cubic foot unless specifically exempted from this requirement by the Engineer. E. Unsatisfactory Soils: Soil Classification Groups GC, SC, OL, CH, MH, OH, and PT according to ASTM D 2487 and Groups A-2-6, A-2-7, A-4, A-5, A-6, and A-7 according to AASHTO M 145, or a combination of these groups, unless otherwise specified. 1. Unsatisfactory soils also include satisfactory soils not maintained within 2 percent of optimum moisture content at time of compaction. F. Subbase Material: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; with at least 90 percent passing a 1-1/2-inch sieve and not more than 12 percent passing a No. 200 sieve. G. Base Course: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; with at least OCTOBER 2023 Project # 19.00124 312000 — Page 7 95 percent passing a 1-1/2-inch sieve and not more than 8 percent passing a No. 200 sieve. H. Engineered Fill: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; with at least 90 percent passing a 1-1/2-inch sieve and not more than 12 percent passing a No. 200 sieve. Bedding Course: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; except with 100 percent passing a 1-inch sieve and not more than 8 percent passing a No. 200 sieve. J. Drainage Course: Narrowly graded mixture of washed crushed stone, or crushed or uncrushed gravel; ASTM D 448; coarse -aggregate grading Size 57; with 100 percent passing a 1-1 /2-inch sieve and 0 to 5 percent passing a No. 8 sieve. K. Filter Material: Narrowly graded mixture of natural or crushed gravel, or crushed stone and natural sand; ASTM D 448; coarse -aggregate grading Size 67; with 100 percent passing a 1-inch sieve and 0 to 5 percent passing a No. 4 sieve. L. Pipe Bedding: Narrowly graded washed crushed stone or crushed gravel meeting the requirements of ASTM D 448, aggregate grading size 57. M. Sand: ASTM C 33; fine aggregate. N. Impervious Fill: Clayey gravel and sand mixture capable of compacting to a dense state. 2.2 GEOTEXTILES A. Subsurface Drainage Geotextile: Nonwoven needle -punched geotextile, manufactured for subsurface drainage applications, made from polyolefins or polyesters; with elongation greater than 50 percent; complying with AASHTO M 288 and the following, measured per test methods referenced: 1. Survivability: Class 2; AASHTO M 288. 2. Grab Tensile Strength: 157 Ibf; ASTM D 4632. 3. Sewn Seam Strength: 142 Ibf; ASTM D 4632. 4. Tear Strength: 56 Ibf; ASTM D 4533. 5. Puncture Strength: 56 Ibf; ASTM D 4833. 6. Apparent Opening Size: No. 60 sieve, maximum; ASTM D 4751. 7. Permittivity: 0.2 per second, minimum; ASTM D 4491. 8. UV Stability: 50 percent after 500 hours' exposure; ASTM D 4355. OCTOBER 2023 Project # 19.00124 312000 — Page 8 B. Separation Geotextile: Woven geotextile fabric, manufactured for separation applications, made from polyolefins or polyesters; with elongation less than 50 percent; complying with AASHTO M 288 and the following, measured per test methods referenced: 1. Survivability: Class 2; AASHTO M 288. 2. Grab Tensile Strength: 247 Ibf; ASTM D 4632. 3. Sewn Seam Strength: 222 Ibf; ASTM D 4632. 4. Tear Strength: 90 Ibf; ASTM D 4533. 5. Puncture Strength: 90 Ibf; ASTM D 4833. 6. Apparent Opening Size: No. 60 sieve, maximum; ASTM D 4751. 7. Permittivity: 0.02 per second, minimum; ASTM D 4491. 8. UV Stability: 50 percent after 500 hours' exposure; ASTM D 4355. 2.3 FLOWABLE FILL (CONTROLLED LOW -STRENGTH MATERIAL) A. Flowable Fill (controlled low -strength material) shall meet the requirements of NCDOT Standard Specifications for Roads and Bridges, (latest revision). Flowable fill shall have a minimum 28-day compressive strength of 125 psi and shall be mixed such that cement content is 100 to 150 pounds per cubic yard, air content is less than 35 percent and slump is between 7 and 9 inches. 2.4 ACCESSORIES A. Warning Tape: Acid- and alkali -resistant, polyethylene film warning tape manufactured for marking and identifying underground utilities, 6 inches wide and 4 mils thick, continuously inscribed with a description of the utility; colored as follows: 1. Red: Electric. 2. Yellow: Gas, oil, steam, and dangerous materials. 3. Orange: Telephone and other communications. 4. Blue: Water systems. 5. Green: Sewer systems. B. Detectable Warning Tape: Acid- and alkali -resistant, polyethylene film warning tape manufactured for marking and identifying underground utilities, a minimum of 6 inches wide and 4 mils thick, continuously inscribed with a description of the utility, with metallic core encased in a protective jacket for corrosion protection, detectable by metal detector when tape is buried up to 30 inches deep; colored as follows- 1 . Red: Electric. 2. Yellow: Gas, oil, steam, and dangerous materials. 3. Orange: Telephone and other communications. 4. Blue: Water systems. OCTOBER 2023 Project # 19.00124 312000 — Page 9 5. Green: Sewer systems. PART 3 - EXECUTION 3.1 PREPARATION A. Locate existing underground utilities in the area of work. If utilities are to remain in place, provide adequate means of protection during earthwork operations. B. Should uncharted or incorrectly charted piping or other utilities be encountered during excavation, consult the Engineer immediately for directions as to procedure. Cooperate with Owner and utility companies in keeping respective services and facilities in operation. Repair damaged utilities to the satisfaction of utility companies. C. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards created by earth moving operations. D. Do not commence earth moving operations until temporary erosion and sedimentation control measures, as shown on the plans, as specified herein or as may be required by authorities having jurisdiction are in place. E. Remove vegetation, debris, unsatisfactory soil materials, obstructions, and deleterious materials from ground surface prior to placement of fills. Plow, strip, or break up sloped surfaces steeper than 1 vertical to 4 horizontal so that fill material will bond with existing surface. Shape the subgrade as indicated on the drawings by forking, furrowing, or plowing so that the first layer of new material placed thereon will be well bonded to it. F. After removal of all existing topsoil, debris, and other undesirable material, the areas which are to receive fill, which have been cut to the desired grade, or which are at the approximate required subgrade elevation without additional earthwork, should be proofrolled to locate any soft or yielding area. Proofrolling shall be done as described below. G. Any soft or excessively yielding material revealed by the proofrolling shall be removed and replaced with inert controlled fill. The Engineer shall be the sole judge of what constitutes soft or excessively yielding material. H. Protect subgrades and foundation soils from freezing temperatures and frost. Remove temporary protection before placing subsequent materials. OCTOBER 2023 Project # 19.00124 312000 — Page 10 3.2 CUTTING CONCRETE OR ASPHALT SURFACE CONSTRUCTION A. All pavement cutting and repair shall be done in accordance with the requirements of authorities having jurisdiction. Cuts in concrete and asphaltic concrete shall be no larger than necessary to provide adequate working space for proper installation of pipe and appurtenances. Cutting shall be performed with a concrete saw in a manner which will provide a clean groove the complete thickness of the surface material along each side of the trench and along the perimeter of cuts for structures. B. Concrete and asphaltic concrete over trenches excavated for pipelines shall be removed so that a shoulder not less than 12 inches in width at any point is left between the cut edge of the surface and the top edge of the trench. Trench width at the bottom shall not be greater than at the top and no undercutting will be permitted. Cuts shall be made to and between straight or accurately marked curved lines which, unless otherwise required, shall be parallel to the center line of the trench. C. Pavement or other surfaces removed for connections to existing lines or structures shall not be of greater extent than necessary for the installation. D. Where the trench parallels the length of concrete walks and the trench location is all or partially under the walk, the entire walk shall be removed and replaced. Where the trench crosses drives, walks, curbs, or other surface construction, the surface construction shall be removed and replaced between existing joints or between saw cuts. 3.3 DEWATERING A. The Contractor shall provide and maintain adequate dewatering equipment to remove and dispose of all surface water and groundwater entering excavations, trenches, or other parts of the work. Each excavation shall be kept dry during subgrade preparation and continually thereafter until the structure to be built, or the pipe to be installed therein, is completed to the extent that no damage from hydrostatic pressure, flotation, or other cause will result. B. All excavations for concrete structures or trenches that extend down to or below groundwater shall be dewatered by lowering and keeping the groundwater level beneath such excavations 12 inches or more below the bottom of the excavation. C. The Contractor is responsible for obtaining any required permits or permissions necessary for the disposal of groundwater that is removed. Any discharged groundwater shall be clean and free of sediment. OCTOBER 2023 Project # 19.00124 312000 — Page 11 D. The Contractor shall be responsible for the condition of any pipe or conduit which he may use for drainage purposes, and all such pipes or conduits shall be left clean and free of sediment. E. The Contractor shall take special care to prevent the siltation of streams and remove all organically contaminated sediment, saturated soil, and other undesirable material from existing watercourses. F. Prevent surface water and ground water from entering or accumulating in trenches and other excavations, from ponding on prepared subgrades, and from flooding Project site and surrounding area. Do not use excavated trenches as temporary drainage ditches. Divert water from these areas without causing damage to adjacent property. G. Protect subgrades from softening, undermining, washout, and damage by rain or water accumulation. 3.4 EXPLOSIVES A. Where blasting is permitted, it shall be done only by qualified personnel and in accordance with all requirements of authorities having jurisdiction. The Contractor shall be responsible for any damage done to adjacent structures, properties, or to persons, by reason of the blasting or other earthwork operations. The Contractor shall also be responsible for damage to other site improvements including, but not limited to embankments and cut areas, and sewer, water, gas or other underground lines which may result from blasting or earthwork operations. All such damage shall be repaired and made good by the Contractor in a timely manner. B. Suitable methods shall be employed to confine all materials lifted by blasting within the limits of the excavation or trench. C. All rock which cannot be handled and compacted as earth shall be kept separate from other excavated materials and shall not be mixed with backfill or embankment materials except as specified or directed. D. Perform blasting without weakening the bearing capacity of rock subgrade and with the least -practicable disturbance to rock to remain. E. Obtain written permission from authorities having jurisdiction before bringing explosives to Project site or using explosives on Project site. 3.5 EXCAVATION, GENERAL A. Perform all excavation work in compliance with applicable requirements of governing authorities having jurisdiction. OCTOBER 2023 Project # 19.00124 312000 — Page 12 B. Furnish, put in place, and maintain such sheeting, bracing, etc., as may be necessary to support the sides of the excavation to comply with the requirements of governing authorities having jurisdiction. C. Protect structures, utilities, sidewalks, pavements, and other facilities from damages caused by settlement, lateral movement, undermining, washout, and other hazards created by earthwork operations. D. The use of mechanical equipment will not be permitted in locations where its operation would cause damage to trees, buildings, culverts, or other existing property, utilities, or structures above or below ground. In all such locations, hand excavating methods shall be used. E. Widening of cuts or flattening of cut slopes will not be required in rock or material which required ripping. When rock is unexpectedly encountered, any widening or flattening already begun shall be transitioned to leave the cut with a pleasing and safe appearance. F. Unclassified Excavation: Excavate to subgrade elevations regardless of the character, nature or composition of surface and subsurface conditions encountered. Unclassified excavated materials may include rock, soil materials, and obstructions. No changes in the Contract Sum or the Contract Time will be authorized for rock excavation or removal of obstructions. 1. If excavated materials intended for fill and backfill include unsatisfactory soil materials and rock, replace with satisfactory soil materials. 2. Remove rock to lines and grades indicated to permit installation of permanent construction without exceeding the following dimensions: a. 24 inches outside of concrete forms other than at footings. b. 12 inches outside of concrete forms at footings. C. 6 inches outside of minimum required dimensions of concrete cast against grade. d. Outside dimensions of concrete walls indicated to be cast against rock without forms or exterior waterproofing treatments. e. 6 inches beneath bottom of concrete slabs -on -grade. f. 6 inches beneath pipe in trenches, and the greater of 24 inches wider than pipe or 42 inches wide. G. Classified Excavation: Excavate to subgrade elevations. Material to be excavated will be classified as earth or rock. When rock is encountered within the limits of construction, the Contractor shall notify the Engineer prior to any removal. Upon the Engineer's authorization, the Contractor shall remove the rock. The Contractor shall not be paid for rock removed without prior approval from the Engineer. 1. Earth excavation includes excavating pavements and obstructions visible on surface; underground structures, utilities, and other items indicated to OCTOBER 2023 Project # 19.00124 312000 — Page 13 be removed; together with soil, boulders, and other materials not classified as rock or unauthorized excavation. a. Intermittent drilling; blasting, if permitted; ram hammering; or ripping of material not classified as rock excavation is earth excavation. 2. Rock excavation includes removal and disposal of rock. Remove rock to lines and subgrade elevations indicated to permit installation of permanent construction without exceeding the following dimensions: a. 24 inches outside of concrete forms other than at footings. b. 12 inches outside of concrete forms at footings. C. 6 inches outside of minimum required dimensions of concrete cast against grade. d. Outside dimensions of concrete walls indicated to be cast against rock without forms or exterior waterproofing treatments. e. 6 inches beneath bottom of concrete slabs -on -grade. f. 6 inches beneath pipe in trenches, and the greater of 24 inches wider than pipe or 42 inches wide. 3.6 EXCAVATION FOR STRUCTURES A. Excavate to indicated elevations and dimensions within a tolerance of plus or minus 1 inch. If applicable, extend excavations a sufficient distance from structures for placing and removing concrete formwork, for installing services and other construction, and for inspections. 1. Excavations for Footings and Foundations: Do not disturb bottom of excavation. Excavate by hand to final grade just before placing concrete reinforcement. Trim bottoms to required lines and grades to leave solid base to receive other work. 2. Pile Foundations: Stop excavations 6 to 12 inches above bottom of pile cap before piles are placed. After piles have been driven, remove loose and displaced material. Excavate to final grade, leaving solid base to receive concrete pile caps. 3. Excavation for Underground Tanks, Basins, and Mechanical or Electrical Utility Structures: Excavate to elevations and dimensions indicated within a tolerance of plus or minus 1 inch. Do not disturb bottom of excavations intended as bearing surfaces. B. Excavations at Edges of Tree- and Plant -Protection Zones: 1. Excavate by hand to indicated lines, cross sections, elevations, and subgrades. Use narrow -tine spading forks to comb soil and expose roots. Do not break, tear, or chop exposed roots. Do not use mechanical equipment that rips, tears, or pulls roots. OCTOBER 2023 Project # 19.00124 312000 — Page 14 2. Cut and protect roots according to requirements in Division 01 Section "Temporary Tree and Plant Protection." 3.7 EXCAVATION FOR WALKS AND PAVEMENTS A. Excavate and shape the surface of areas under walks to indicated lines, grades, elevations, subgrades and cross sections, with the finish surface not more than 0 inches above or 1 inch below the required subgrade elevation, compacted as specified, and graded to prevent ponding of water after rains. B. Excavate and shape the surface of areas under pavement to indicated lines, grades, elevations, subgrades and cross sections, with the finish surface not more than 1/2 inch above or below the required subgrade elevation, compacted as specified, and graded to prevent ponding of water after rains. Include such operations as plowing, discing, and any moisture or aerating required to provide the optimum moisture content for compaction. C. Fill low areas resulting from removal of unsatisfactory soil materials, obstructions, and other deleterious materials, using satisfactory soil material. 3.8 EXCAVATION FOR UTILITY TRENCHES A. Perform all excavation of every description and of whatever substance encountered so that the pipe can be laid to the indicated gradients, lines, depths, and elevations shown on the drawings. B. Except where tunneling is indicated on the drawings, is specified, or is permitted by the Engineer, all trench excavation shall be open cut from the surface. C. No more trenches shall be opened in advance of pipe laying than is necessary to expedite the work. One block or 400 feet (whichever is the shorter) shall be the maximum length of open trench on any line under construction. D. Mechanical equipment used for trench excavation shall be of a type, design, and construction and shall be controlled, such that uniform trench widths and vertical sidewalls are obtained at least from an elevation one foot above the top of the installed pipe to the bottom of the trench, and that trench alignment is such that pipe when accurately laid to specified alignment will be centered in the trench with adequate clearance between the pipe and sidewalls of the trench. Undercutting the trench sidewall to obtain clearance will not be permitted. E. Where pipe grades or elevations are not definitely fixed by the contract drawings, trenches shall be excavated to a depth sufficient to provide a minimum depth of backfill cover over the top of the pipe. Cover depths may be OCTOBER 2023 Project # 19.00124 312000 — Page 15 necessary on vertical curves or to provide necessary clearance beneath existing pipes, conduits, drains, drainage structures, or other obstructions encountered at normal pipe grades. Measurement of pipe cover depth shall be made vertically from the outside top of pipe to finished ground or pavement surface elevation except where future surface elevations are indicated on the drawings. F. Excavate trenches to uniform widths to provide a maximum trench width no greater than the pipe outside diameter plus 24 inches (12 inches on either side of pipe). Excavate trench walls vertically from trench bottom to 12 inches higher than top of pipe or conduit unless otherwise indicated. Do not widen trenches by scraping or loosening materials from the sides. G. Trench Bottoms: Excavate and shape trench bottoms to provide uniform bearing and support of pipes and conduit. Shape subgrade to provide continuous support for bells, joints, and barrels of pipes and for joints, fittings, and bodies of conduits. Remove projecting stones and sharp objects along trench subgrade. 1. For pipes and conduit to be bedded in earth excavated trenches, fine grade the bottoms of such trenches to allow firm bearing for the bottom of the pipe on undisturbed earth. Where any part of the trench has been excavated below the grade of the pipe, fill the part excavated below such grade with pipe bedding material and compact at the Contractor's expense. 2. For pipes and conduit to be laid in embankments or other recently filled material, first place the fill material to the finish grade or to a height of at least one foot above the top of the pipe, whichever is the lesser. Take particular care to ensure maximum consolidation of material under the pipe location. Excavate the pipe trench as though in undisturbed material. 3. For trench bottoms in poor soils excavate and remove unstable or unsuitable soil to a width and depth, as directed by the Engineer, and refill with a thoroughly compacted gravel bedding. 4. Excavate trenches 6 inches deeper than elevation required in rock or other unyielding bearing material to allow for bedding course. H. Trenches in Tree- and Plant -Protection Zones: 1. Hand -excavate to indicated lines, cross sections, elevations, and subgrades. Use narrow -tine spading forks to comb soil and expose roots. Do not break, tear, or chop exposed roots. Do not use mechanical equipment that rips, tears, or pulls roots. 2. Do not cut main lateral roots or taproots; cut only smaller roots that interfere with installation of utilities. 3. Cut and protect roots according to requirements in Division 01 Section "Temporary Tree and Plant Protection." OCTOBER 2023 Project # 19.00124 312000 — Page 16 Where trench sheeting is left in place, such sheeting shall not be braced against the pipe, but shall be supported in a manner which will preclude concentrated loads or horizontal thrusts on the pipe. Cross braces installed above the pipe to support sheeting may be removed after pipe embedment has been completed. 3.9 SUBGRADE INSPECTION A. Notify Engineer when excavations have reached required subgrade. B. Subgrades for concrete structures and trench bottoms shall be firm, dense, and thoroughly compacted and consolidated; free from mud and muck; and sufficiently stable to remain firm and intact under the feet of the workmen. C. If Engineer determines that unsatisfactory soil is present, continue excavation and replace with compacted backfill or fill material as directed. D. Subgrades for concrete structures or trench bottoms, which are otherwise solid but which become mucky on top due to construction operations, shall be reinforced with one or more layers of crushed rock or gravel. The stabilizing material shall be spread and compacted to a depth of not less than 6 inches below the bottom of the structure or pipe. Not more than '/2 inch depth of mud or muck shall be allowed to remain on stabilized trench bottoms when the pipe bedding material is placed thereon. The finished elevation of stabilized subgrades for concrete structures shall not be above subgrade elevations indicated on the drawings. E. Proof -roll subgrade below structures, slabs, pavements and other areas as directed by Engineer. Proofrolling shall be done with at least four (4) overlapping passes of a heavy-duty flat wheel vibratory roller, at least 20 tons, or by its approved equivalent. F. Do not proof -roll wet or saturated subgrades. 1. Completely proof -roll subgrade in one direction (longest dimension of Project). Limit vehicle speed to 3 mph. 2. Excavate soft spots, unsatisfactory soils, and areas of excessive pumping or rutting, as determined by Engineer, and replace with compacted backfill or fill as directed. G. Reconstruct subgrades damaged by freezing temperatures, frost, rain, accumulated water, or construction activities, as directed by Engineer, without additional compensation. OCTOBER 2023 Project # 19.00124 312000 — Page 17 3.10 UNAUTHORIZED EXCAVATION A. Unauthorized excavation consists of the removal of materials beyond indicated lines, grades, or elevations without the specific direction of the Engineer. B. Fill unauthorized excavation under foundations or wall footings by extending bottom elevation of concrete foundation or footing to excavation bottom, without altering top elevation. Additional concrete to fill unauthorized excavations shall be placed, by and at the expense of the Contractor, with concrete placed at the same time and monolithic with the concrete above. C. For pipe trenches and elsewhere, backfill and compact unauthorized excavations as specified for authorized excavations of the same classification, unless otherwise directed by the Engineer. 3.11 STORAGE OF SOIL MATERIALS A. Stockpile borrow soil materials and excavated satisfactory soil materials without intermixing. Place, grade, and shape stockpiles to drain surface water. Cover to prevent windblown dust. 1. Stockpile soil materials away from edge of excavations. Do not store within drip line of remaining trees. 3.12 BACKFILL A. Place and compact backfill in excavations promptly, but not before completing the following: 1. Construction below finish grade including, where applicable, subdrainage, dampproofing, waterproofing, and perimeter insulation. 2. Surveying locations of underground utilities for Record Documents. 3. Testing and inspecting underground utilities. 4. Removing concrete formwork. 5. Removing trash and debris. 6. Removing temporary shoring and bracing, and sheeting. 7. Installing permanent or temporary horizontal bracing on horizontally supported walls. B. Place backfill on subgrades free of mud, frost, snow, or ice. 3.13 UTILITY TRENCH BACKFILL A. Unless otherwise specified or indicated on the drawings, use suitable material for backfill which was removed in the course of making the construction OCTOBER 2023 Project # 19.00124 312000 — Page 18 excavations. Do not use frozen material for the backfill and do not place backfill on frost, snow, ice or frozen or muddy material. Remove previously frozen material before new backfill is placed. Start backfilling as soon as practicable after the pipes have been laid, or the structures have been built and are structurally adequate to support the loads, including construction loads to which they will be subjected, and proceed until its completion. B. With the exception mentioned below in this paragraph, do not backfill trenches at pipe joints until after that section of the pipeline has successfully passed any specified tests required. Should the Contractor wish to minimize the maintenance of lights, and barricades, and the obstruction of traffic, he may, at his own risk, backfill the entire trench as soon as practicable after installation of pipe, and the related structures have acquired a suitable degree of strength. He shall, however, be responsible for removing and later replacing such backfill, at his own expense, should he be ordered to do so in order to locate and repair or replace leaking or defective joints or pipe. C. Do not drop large masses of backfill material into the trench in such a manner as to endanger the pipeline. Use a timber grillage to break the fall of material dropped from a height of more than 5 feet. Exclude pieces of bituminous pavement from the backfill unless their use is expressly permitted. D. Zone Around Pipe: Place bedding material to the level shown on the Drawings and work material carefully around the pipe to insure that all voids are filled, particularly in bell holes. For backfill up to a level of 2 feet over the top of the pipe, use only selected materials containing no rock, clods or organic materials. Place the backfill and compact thoroughly under the pipe haunches and up to the mid line of the pipe in layers not exceeding 6 inches in depth. Place each layer and tamp carefully and uniformly so as to eliminate the possibility of lateral displacement. Place and compact the remainder of the zone around the pipe and to a height of one foot above the pipe in layers not exceeding 6 inches and compact to a maximum density of at least 100 percent as determined by ASTM D698. E. Backfill voids with satisfactory soil while removing shoring and bracing. F. Tamping: Deposit and spread backfill materials in uniform, parallel layers not exceeding 12 inches thick before compaction. Tamp each layer before the next layer is placed to obtain a thoroughly compacted mass. Furnish and use, if necessary, an adequate number of power driven tampers, each weighing at least 20 pounds for this purpose. Take care that the material close to the bank, as well as in all other portions of the trench, is thoroughly compacted. When the trench width and the depth to which backfill has been placed are sufficient to make it feasible, and it can be done effectively and without damage to the pipe, backfill may, on approval of the Engineer, be compacted by the use of suitable rollers, tractors, or similarly powered equipment instead of by tamping. For compaction by tamping (or rolling), the rate at which backfilling material is OCTOBER 2023 Project # 19.00124 312000 — Page 19 deposited in the trench shall not exceed that permitted by the facilities for its spreading, leveling and compacting as furnished by the Contractor. G. Follow the measures described herein to ensure the optimum moisture content of the backfill material prior to placement in the trench. Perform no compaction by tamping (or rolling) when the material is too wet either from rain or applied water to be compacted properly. H. Compact backfill in pipe trenches to the maximum density as shown on the drawings, or as specified herein. Flowable Fill (Controlled Low -Strength Material): Place initial backfill of flowable fill to a height of 12 inches over the pipe or conduit. Coordinate backfilling with utilities testing. J. Place and compact final backfill of satisfactory soil to final subgrade elevation. K. Install warning tape directly above utilities as shown on the Drawings. 3.14 SOIL FILL A. After a stable, non -yielding surface has been established, the surface of the area to be filled shall be scarified with a disc or harrow to a depth of 4 to 6 inches. An initial 3-inch layer of fill material shall then be spread over the scarified surface and the entire area compacted as specified below. B. No fill shall be placed on any area until that area has been inspected and approved by the Engineer. Fill shall not be placed mud, frost, snow or ice. Fill materials shall be spread in uniform horizontal layers not exceeding 8 inches in uncompacted thickness. Alternating layers of cohesive and granular fill soils shall not be permitted. Spreading and compacting of fill material should be started at the lowest portion of the site. All fill must be placed in horizontal layers. Sloping fill planes will not be permitted. Fill material shall be distributed over the full width of the embankment, and in no case will deep ruts be allowed to form. C. Keyways shall be provided at the toe of each fill slope as shown on the drawings. As each layer of fill meets the natural grade of a slope, a bench, approximately 7 to 8 feet wide, shall be cut into the existing grade with each layer of newly placed fill. If rock is encountered at the face of the natural grade, the original ground shall be cut in vertical steps of 4 to 5 feet and a horizontal bench cut into the rock at the top of each vertical increment. A horizontal plateau, approximately 15 to 20 feet wide, should be provided in the existing slope at vertical intervals of roughly 25 feet. Subsurface drains shall be installed at the toe of the slope and wherever springs or excessive seepage are encountered. Drains should be led to the outside face of the embankment and OCTOBER 2023 Project # 19.00124 312000 — Page 20 the water picked up and carried away in such a manner as to avoid softening the embankment or its toe, or producing erosion gullies. D. Place and compact fill material in layers to required elevations as follows: 1. Under grass and planted areas, use satisfactory soil material. 2. Under walks and pavements, use satisfactory soil material. 3. Under steps and ramps, use engineered fill. 4. Under building slabs, use engineered fill. 5. Under footings and foundations, use engineered fill. 3.15 SOIL MOISTURE CONTROL A. Before compaction begins, the fill shall be brought to a water content that will permit proper compaction. This may require aerating the material if it is too wet or the addition of water if it is too dry. If additional water is required, it should be uniformly distributed through the use of approved water wagons, and shall be thoroughly incorporated into the material by means of discs or other suitable mixing equipment. Care shall be taken to avoid trapping water within the fill. B. Where, in the opinion of the Engineer, proposed fill material is too wet to permit drying in a reasonable length of time, the Engineer may reject the material and it must be removed from the work area. C. Uniformly moisten or aerate subgrade and each subsequent fill or backfill soil layer before compaction to within 2 percent of optimum moisture content. 1. Do not place backfill or fill soil material on surfaces that are muddy, frozen, or contain frost or ice. 2. Remove and replace, or scarify and air dry, otherwise satisfactory soil material that exceeds optimum moisture content by 2 percent and is too wet to compact to specified dry unit weight. D. Method "C" of the Standard Proctor test of moisture density relationship test, ASTM D 698 or AASHTO T99, shall be used to determine the maximum laboratory dry density and the optimum moisture content of the material which is to be used for fill. 3.16 COMPACTION OF SOIL BACKFILLS AND FILLS A. Place satisfactory backfill and fill soil materials in layers not more than 8 inches in loose depth for material compacted by heavy compaction equipment, and not more than 4 inches in loose depth for material compacted by hand -operated tampers. OCTOBER 2023 Project # 19.00124 312000 — Page 21 B. Place satisfactory backfill and fill soil materials evenly on all sides of structures to required elevations, and uniformly along the full length of each structure. Do not place backfill against or on structures until they have attained sufficient strength to support the loads (including construction loads) to which they will be subjected, without distortion, cracking, or other damage. Take care to prevent wedging action of backfill against structures. C. Make special leakage tests, if required, as soon as practicable after the structures are structurally adequate and other necessary work has been done. Use the best of the excavated materials in backfilling within 2 feet of the structure. D. When existing ground surface has a density less than that specified under the subsection entitled "COMPACTION" for the particular area classification, break up the ground surface, pulverize, moisture condition to the optimum moisture content, and compact to required depth and percentage of maximum density. E. After compaction, all fill will be tested in accordance with Method "C" of ASTM D-698, unless specified otherwise. Except as noted otherwise for the zone around pipe, provide not less than the following percentages of maximum density of soil material compacted at optimum moisture content, for the actual density of each layer of soil material -in -place: UNPAVED AREAS Compact Full Depth to 92% DRIVES AND PARKING Top 24" - 100% TRENCH BACKFILL PAVED AREAS Compact full depth to 100% TRENCH BACKFILL UNPAVED AREAS Compact full depth to 95% ALL OTHER BACKFILL I Compact full depth to 95% F. The above compaction requirements are to be satisfied for all soil and weathered or soft rock fills. Weathered or soft rocks are those that can be broken down and disintegrated under normal compaction procedures and equipment. G. At the close of each day's work, or where work is to be interrupted for a period of time, the surface of the site shall be shaped to drain freely, and sealed. If after a prolonged rainfall, the surface of the area to be filled or cut is too wet to work properly, the unsuitable material shall be removed to expose workable soil. The wet material removed may be dried and reused. Construction traffic shall be controlled so as to prevent rutting of graded areas and to avoid over - rolling of any section. H. All cut areas shall be rolled and compacted to produce a compaction equal to that of the filled area. If soft or yielding material is encountered in cuts, or fills as a result of trapping water, over -rolling or improper control of construction traffic, and cannot be satisfactorily stabilized by moisture control, compaction or other means approved by the Engineer, the unstable material shall be OCTOBER 2023 Project # 19.00124 312000 — Page 22 excavated to the depth required by the Engineer. The excavation shall then be filled with suitable compacted material in accordance with the requirements outlined above. 3.17 GRADING A. Elevations shown on the plans are finished ground unless otherwise noted. Grading shall be maintained in such a manner as to provide free surface drainage away from structures and throughout the site at all times without any ponding of water. B. Uniformly grade areas to a smooth surface, free of irregular surface changes. Comply with compaction requirements and grade to cross sections, lines, and elevations indicated. 1. Provide a smooth transition between adjacent existing grades and new grades. 2. Cut out soft spots, fill low spots, and trim high spots to comply with required surface tolerances. C. Provide ditches and swales to the cross sections and grades shown on the drawings. Cut ditch subgrades 4 inches below the grades shown and provide 4 inches of topsoil where the plans call for seeding or sodding of the ditch. Keep ditches and swales free of accumulations of debris or washed in material until final acceptance of work by the Engineer. D. Site Rough Grading: Slope grades to direct water away from buildings and to prevent ponding. Finish subgrades to required elevations within the following tolerances: 1. Turf or Unpaved Areas: Plus or minus 1 inch. 2. Walks: Plus or minus 1 inch. 3. Pavements: Plus or minus 1/2 inch. E. Grading inside Building Lines: Finish subgrade to a tolerance of 1/2 inch when tested with a 10-foot straightedge. 3.18 SUBSURFACE DRAINAGE A. Subsurface Drain: Place subsurface drainage geotextile around perimeter of subdrainage trench. Place a 6-inch course of filter material on subsurface drainage geotextile to support subdrainage pipe. Encase subdrainage pipe in a minimum of 12 inches of filter material, placed in compacted layers 6 inches thick, and wrap in subsurface drainage geotextile, overlapping sides and ends at least 6 inches. OCTOBER 2023 Project # 19.00124 312000 — Page 23 1. Compact each filter material layer to 85 percent of maximum dry unit weight according to ASTM D 698 with a minimum of two passes of a plate - type vibratory compactor. B. Drainage Backfill: Place and compact filter material over subsurface drain, in width indicated, to within 12 inches of final subgrade, in compacted layers 6 inches thick. Overlay drainage backfill with one layer of subsurface drainage geotextile, overlapping sides and ends at least 6 inches. 1. Compact each filter material layer to 85 percent of maximum dry unit weight according to ASTM D 698 with a minimum of two passes of a plate - type vibratory compactor. 2. Place and compact impervious fill over drainage backfill in 6-inch thick compacted layers to final subgrade. 3.19 BASE COURSES UNDER PAVEMENTS AND WALKS A. Place base course on subgrades free of mud, frost, snow, or ice. B. On prepared subgrade, place base course under pavements and walks as follows.. 1. Install separation geotextile on prepared subgrade according to manufacturer's written instructions, overlapping sides and ends. 2. Place base course material over subbase course under hot -mix asphalt pavement. 3. Shape base course to required crown elevations and cross -slope grades. 4. Place base course 6 inches or less in compacted thickness in a single layer. 5. Place base course that exceeds 6 inches in compacted thickness in layers of equal thickness, with no compacted layer more than 6 inches thick or less than 3 inches thick. 6. Compact base course at optimum moisture content to required grades, lines, cross sections, and thickness to not less than 95 percent of maximum dry unit weight according to ASTM D 698. C. Pavement Shoulders: Place shoulders along edges of base course to prevent lateral movement. Construct shoulders, at least 12 inches wide, of satisfactory soil materials and compact simultaneously with each base layer to not less than 95 percent of maximum dry unit weight according to ASTM D 698. 3.20 DRAINAGE COURSE UNDER CONCRETE SLABS -ON -GRADE A. Place drainage course on subgrades free of mud, frost, snow, or ice. OCTOBER 2023 Project # 19.00124 312000 — Page 24 B. On prepared subgrade, place and compact drainage course under cast -in -place concrete slabs -on -grade as follows: 1. Install subdrainage geotextile on prepared subgrade according to manufacturer's written instructions, overlapping sides and ends. 2. Place drainage course 6 inches or less in compacted thickness in a single layer. 3. Place drainage course that exceeds 6 inches in compacted thickness in layers of equal thickness, with no compacted layer more than 6 inches thick or less than 3 inches thick. 4. Compact each layer of drainage course to required cross sections and thicknesses to not less than 95 percent of maximum dry unit weight according to ASTM D 698. 3.21 FIELD QUALITY CONTROL A. The services of qualified soils testing personnel may be engaged by the Owner for the making of tests to determine the moisture -density relationships, relative densities, plastic and liquid limits and suitability of materials for compaction and for inspection and control of the site preparation, selection, placing and compaction of the fill. Such tests will be provided and paid for by the Owner, except that tests which reveal non-conformance with the Specifications and all succeeding tests for the same area, until conformance with the Specifications is established shall be at the expense of the Contractor. The Owner will be responsible for paying for only the successful tests. A copy of the testing personnel's daily field report including results of in -place density and moisture content tests should be forwarded to the Owner and the Engineer at the end of each working day. B. The Contractor shall cooperate fully with the testing personnel so as to permit proper inspection and control of the work without unnecessary delays. C. When testing agency reports that subgrades, fills, or backfills have not achieved degree of compaction specified, scarify and moisten or aerate, or remove and replace soil materials to depth required; recompact and retest until specified compaction is obtained. 3.22 PROTECTION A. Do not operate tractors, bulldozers or other power operated equipment on paved surfaces if the treads or wheels of the equipment are so shaped as to cut or otherwise injure the surfaces. B. Restore all surfaces, including lawns, grassed, and planted areas that have been injured by the Contractor's operations, to a condition at least equal to that in which they were found immediately before the work was begun. Use suitable OCTOBER 2023 Project # 19.00124 312000 — Page 25 materials and methods for such restoration. Maintain all restored plantings by cutting, trimming, fertilizing, etc., until acceptance. Restore existing property or structures as promptly as practicable and do not leave until the end of construction period. C. Protecting Graded Areas: Protect newly graded areas from traffic, freezing, and erosion. Keep free of trash and debris. D. During construction and until final acceptance, the Contractor shall construct temporary or permanent earth berms along the outer edges of the top surface of the embankment, construct temporary ditches, shape the embankment surface to provide for the drainage of surface runoff along and throughout the length of the embankments, and use any other methods necessary to maintain the work covered by this section so that the work will not contribute to excessive soil erosion. The Contractor shall construct brush dikes, or install temporary or permanent slope drains or other drainage features to assist in controlling erosion. E. Slides and overbreaks which occur prior to final acceptance of the project due to natural causes shall be removed and disposed of by the Contractor as directed by the Engineer. F. Where slides or overbreaks occur due to negligence or carelessness on the part of the Contractor, the Contractor shall remove and dispose of the material at no cost to the Owner. G. Repair and reestablish grades to specified tolerances where completed or partially completed surfaces become eroded, rutted, settled, or where they lose compaction due to subsequent construction operations or weather conditions. 1. Scarify or remove and replace soil material to depth as directed by Engineer; reshape and recompact. H. Where settling occurs before Project correction period elapses, remove finished surfacing, backfill with additional soil material, compact, and reconstruct surfacing. 1. Restore appearance, quality, and condition of finished surfacing to match adjacent work, and eliminate evidence of restoration to greatest extent possible. All embankments shall be brought to the grade and cross section shown on the plans or established by the Engineer, prior to final inspection and acceptance by the Engineer. OCTOBER 2023 Project # 19.00124 312000 — Page 26 3.23 MAINTENANCE A. The Contractor shall be responsible during construction and until final acceptance for the maintenance of all embankments, ground covers and other surfaces made under the Contract. B. The Contractor shall protect and maintain erosion and sedimentation controls during earth moving operations and shall remove said measures upon completion of earth moving operations and the satisfactory establishment of permanent or temporary ground covers. 3.24 DISPOSAL OF SURPLUS AND WASTE MATERIALS A. Remove surplus satisfactory soil and waste materials, including unsatisfactory soil, trash, and debris, and legally dispose of them off Owner's property unless otherwise required by the plans or special provisions or unless disposal within the project area is permitted by the Engineer. B. Concrete that is painted must be disposed of in accordance with requirements and regulations of the North Carolina Department of Environment and Natural Resources (NCDENR) Solid Waste Section. Prior to disposal of painted concrete, the Contractor shall submit a written certification to NCDENR that the paint on the concrete is not lead -based. Certification that paint on concrete is not lead -based paint is required prior to management as inert debris. Lead - based paint is defined by federal statute (Title X of the Housing and Community Development Act and the Toxic Substances Control Act, by reference). Concrete that is painted with lead -based paint, or paint that has not been certified to the satisfaction of the NCDENR Solid Waste Section to be below the federal standard to be considered lead -based paint, must be disposed of at a properly permitted construction and demolition landfill or a permitted municipal solid waste landfill. C. Transport surplus satisfactory soil to designated storage areas on Owner's property. Stockpile or spread soil as directed by Engineer. D. The Contractor shall maintain the earth surfaces of all waste areas, both during the work and until the completion of all seeding and mulching or other erosion control measures specified, in a manner which will effectively control erosion and siltation. E. The following requirements shall also be applicable to all waste or disposal areas other than active public waste or disposal areas: 1. Rock waste shall be shaped to contours which are comparable to and blend in with the adjacent topography where practical, and shall be covered with a minimum 6 inch thick layer of earth material either from the project waste or from borrow. OCTOBER 2023 Project # 19.00124 312000 — Page 27 2. Earth waste shall be shaped to contours which are comparable to and blend in with the adjacent topography where practicable, but in no case will slopes steeper than 2.1 be permitted. 3. Construction debris, grubbed debris and all broken pavement and masonry shall be covered with a minimum 6-inch thick layer of earth waste material from the project or borrow. The completed waste area shall be shaped as required above for disposal of earth waste. 4. Seeding and mulching shall be performed over all earth or earth covered waste areas. The work of seeding and mulching shall be performed in accordance with other sections of these Contract Documents. 5. Where the Engineer has granted permission to dispose of waste and debris within the project, the Engineer will have the authority to establish whatever additional requirements may be necessary to insure the satisfactory appearance of the completed project. END OF SECTION 312000 OCTOBER 2023 Project # 19.00124 312000 — Page 28 SECTION 333100 SANITARY SEWER PIPE AND APPURTENANCES PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including Modified General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. B. Where specific standards are referenced within this document, the most current specification and/or latest revision shall apply. 1.2 SUMMARY A. Section Includes: 1. Pipe and fittings. 2. Valves and appurtenances. 3. Transition couplings. 4. Manholes and appurtenances. 1.3 SCOPE OF WORK A. Furnish all labor, equipment, materials, incidentals, and temporary facilities necessary to install and complete the sanitary sewer and/or force main installation in accordance with the plans. All pipe and appurtenance material shall be of the type and class specified herein. B. All pipeline and appurtenance excavation, bedding, pipe laying, jointing and coupling of pipe joints and backfilling shall be completed as described herein. 1.4 DEFINITIONS A. AASHTO — American Association of State Highway and Transportation Officials B. ACPA — American Concrete Pavement Association C. ANSI —American National Standards Institute OCTOBER 2023 Project # 19.00124 333100 — Page 1 D. API —American Petroleum Institute E. ASTM — American Society for Testing and Materials F. AWWA — American Water Works Association G. CFM — Cubic Feet per Minute H. DIP — Ductile Iron Pipe I. HDD — Horizontal Directional Drilling J. HDPE — High Density Polyethylene K. LB — Pound L. Min. - Minute M. NFPA — National Fire Protection Association N. NSF — National Sanitation Foundation O. NSPT — National Standard Pipe Thread P. PE — Polyethylene Q. PPM — Parts Per Million R. PSI — Pounds per Square Inch S. PSIG — Pounds per Square Inch (Gauge) T. PVC — Polyvinyl Chloride U. RCP — Reinforced Concrete Pipe 1.5 SUBMITTALS A. All submittals shall be in accordance with the requirements of Division 1 of these specifications. B. Shop drawings or submittals shall be required for the following: 1. Drawings and descriptive data on manholes (including wall thicknesses, vertical dimensions, and deflection angles), concrete used in manufacture of manholes and precast inverts, rubber gaskets, joint sealant, flexible manhole sleeves and joints, frames and covers, inverts, and manhole OCTOBER 2023 Project # 19.00124 333100 — Page 2 steps shall be submitted to the Engineer for review prior to their manufacture. 2. All sizes and types of pipe. 3. All pipe fittings, valves and appurtenances. 4. All transition couplings. C. Coordination Drawings: For piping and specialties including relation to other services in same area, drawn to scale. Show piping and specialty sizes and valves, meter and specialty locations, and elevations. D. Operation and Maintenance Data: For specialties valves and appurtenances to include in emergency, operation, and maintenance manuals. E. When utilized on the project, the Contractor shall submit detailed plans and a description outlining all provisions and precautions to be taken by the Contractor regarding the handling of existing wastewater flows during the sewer line connections, replacement or startup of the sewage pumps. This plan must be specific and complete, including such items as schedules, locations, elevations, capacities of equipment, materials and all other incidental items necessary and/or required to ensure proper protection of the facilities, including protection of the access and bypass pumping locations from damage due to the discharge flows, and compliance with the requirements and permit conditions. The submitted work schedule shall minimize the interruption and/or bypassing of wastewater flow during construction. The plan shall include the use of a "High Water Alarm" in the manhole or structure used for bypass pumping. The submittals shall include electrical schematics and control panel information for the pumps including start/stop and alarming configurations. No construction shall begin until all provisions and requirements have been reviewed by the Owner. The Contractor shall allow 30 days for review of this plan. 1. The plan shall include but not limited to details of the following: a. Staging areas for pumps; b. Plan showing proposed equipment and piping layouts including details of tie-ins to existing sewer lines and/or force mains; C. List of pump sizes, valves, piping, fittings and other appurtenances; d. Method of noise control for each pump and/or generator; e. Method for controlling and monitoring the pumps. f. Contingency plan for a sanitary sewer overflow caused by the diversion of the sewer flow. OCTOBER 2023 Project # 19.00124 333100 — Page 3 1.6 DELIVERY, STORAGE, AND HANDLING A. The Contractor shall coordinate material deliveries with the manufacturer/supplier. All materials shall be handled and stored in accordance with the manufacturer's recommendations using methods that will prevent damage to the materials. Further, all manhole components shall be handled and stored in accordance with the ASTM C891. B. Preparation for Transport: Prepare valves according to the following: 1. Ensure that valves are dry and internally protected against rust and corrosion. 2. Protect valves against damage to threaded ends and flange faces. 3. Set valves in best position for handling. Set valves closed to prevent rattling. C. The Contractor shall unload pipe and appurtenances so as to avoid deformation or other injury thereto. Pipe shall not be placed within pipe of a larger size and shall not be rolled or dragged over gravel or rock during handling. If any defective material is discovered after installation, it shall be removed and replaced with sound pipe or shall be repaired by the Contractor in an approved manner and at his own expense. D. The Contractor shall store all pipe and appurtenances on sills above storm drainage level and deliver for laying after the trench is excavated. Do not store any plastic materials in direct sunlight. All plastic materials shall be supported to prevent sagging and bending. All plastic materials shall also be covered with tarps if exposed to the elements for extended periods of time. E. Protect pipe, pipe fittings, and seals from dirt and damage. F. Handle all materials in accordance with the manufacturer's written instructions. G. When any material is damaged during transporting, unloading, handling or storing, the undamaged portions may be used as needed, or, if damaged sufficiently, the Engineer will reject the material as being unfit for installation. The Engineer will reject any ductile iron pipe with a damaged cement lining. 1.7 PROJECT CONDITIONS A. Interruption of Existing Sanitary Sewerage Service: The interruption of sewer flows within the collection system or service to any occupied structure or facility will not be permitted unless specifically approved by the utility owner. The Contractor shall be responsible for maintaining sewer flows at all times. OCTOBER 2023 Project # 19.00124 333100 — Page 4 1. When by-pass pumping of sewer flows is necessary, the Contractor shall submit a by-pass pumping work plan to the Engineer and utility owner in conjunction with the submittal of a construction schedule. The plan shall include a primary pump and an identical standby pump. 2. Notify Engineer and utility owner no fewer than 72 hours in advance of proposed by-pass pumping of sewer flows. 3. Do not proceed with by-pass pumping of sewer flows without utility owner's written permission. 1.8 QUALITY ASSURANCE A. Regulatory Requirements: 1. Comply with all requirements of utility owner providing sanitary sewer service including the connection of new collection system piping. 2. Comply with all standards of authorities having jurisdiction for sanitary sewer service piping, including materials, installation, and testing. B. All piping materials shall bear label, stamp, or other markings of specified testing agency. C. Electrical Components, Devices, and Accessories: All associated materials shall be listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. D. The design, installation and operation of any temporary pumping system, when required to maintain sewer flows in the existing system, shall be the Contractor's responsibility. The Contractor shall demonstrate experience in the design and operation of temporary bypass pumping systems or employ the services of a vendor who can demonstrate this experience. The Contractor or vendor shall provide at least five (5) references of projects of a similar size and complexity as this project performed within the past three (3) years. The bypass system shall meet the requirements of all codes and regulatory agencies having jurisdiction. 1.9 COORDINATION A. Coordinate any connections to the existing sanitary sewer with the utility owner. OCTOBER 2023 Project # 19.00124 333100 — Page 5 PART 2 - PRODUCTS 2.1 BYPASS PUMPING EQUIPMENT A. Equipment: 1. All pumps utilized for bypass pumping shall be centrifugal, end suction, fully automatic self -priming units that do not require the use of foot valves in the priming system. The pumps may be electric or diesel powered. All pumps used must be constructed to allow dry running for long periods of time to accommodate the cyclical nature of sewer flows. The pumps shall not be hydraulic submersible type. 2. Pumps shall be equipped with sound attenuation enclosures which reduce operating noise to 66 dB at 30 feet. Pump sizing shall be in accordance with this Specification. 3. The bypass pumping system shall include the necessary stop/start controls for the pumps. 4. The Contractor shall have adequate standby equipment available and ready for immediate operation and use in the event of an emergency or breakdown. A backup pump of size equal to the largest bypass pump shall be included. The backup pump shall be on-line, isolated from the primary system by a valve. 5. Temporary discharge piping shall be constructed of rigid pipe with positive, restrained joints. Aluminum "irrigation" type piping or glued PVC pipe will not be allowed. Discharge hose will only be allowed in short sections and as accepted by the Owner. 6. Allowable piping shall be as specified herein or as otherwise approved in writing by the Engineer. B. System Description: 1. Design Requirements: a. The bypass pumping system shall have sufficient capacity to pump a peak flow equal to or greater than the capacity of the sewer line being bypassed. The Contractor shall provide, maintain and operate all necessary pipeline plugs, pumps of adequate size to handle the peak flow, and temporary discharge piping to ensure that the total influent flow can be safely diverted around the affected section to be repaired or replaced. Bypass pumping systems will be required to be operated 24 hours per day from the time the existing sewer line is OCTOBER 2023 Project # 19.00124 333100 — Page 6 removed from service until the new sewer line is put into service and has been determined to be Substantially Complete by the Owner. b. Temporary bypass pumping during construction may be accomplished by utilizing existing sanitary sewer manholes upstream and downstream of the affected section. The Contractor shall verify location of all utilities, size of fittings, couplings and all other bypass requirements as previously noted. The bypass connection and piping shall be installed and tested prior to bypassing. C. When bypass pumping from an existing valve vault or pump station, the Contractor shall verify that all necessary components of the existing system are in good working condition. The Owner shall be responsible for operating these valves during construction/upgrades at existing facilities. The Contractor shall coordinate with the Owner's personnel regarding the operation of these facilities and providing a minimum of five (5) days' notice to the Owner prior to conducting any verification or performing any construction operations. 2.2 PIPE MATERIALS A. All materials shall be first quality with smooth interior and exterior surfaces, free from cracks, blisters, honeycombs and other imperfections, and true to theoretical shapes and forms throughout. All materials shall be subject to the inspection of the Engineer at the plant, trench, or other point of delivery, for the purpose of culling and rejecting materials which do not conform to the requirements of these specifications. Such material shall be marked by the Engineer and the Contractor shall remove it from the project site upon notice being received of its rejection. B. As particular specifications are cited, the designation shall be construed to refer to the latest revision under the same specification number, or to superseding specifications under a new number except provisions in revised specifications which are clearly inapplicable. 2.3 DUCTILE IRON SEWER PIPE (DIP) — GRAVITY SEWER AND FORCE MAINS A. Ductile Iron Pipe shall be as manufactured in accordance with AWWA C151, ASTM A-746, ANSI Specification A21.50 and A21.51 and shall be Class 350 unless otherwise specified on the drawings or in the Bid Schedule. 1. The pipe interior shall be cement mortar lined and seal coated, standard thickness, in accordance with ANSI Specification A21.4. 2. The exterior of all pipe shall be coated with either a coal or asphaltic base bituminous pipe coating in accordance with ANSI Specification A21.8. OCTOBER 2023 Project # 19.00124 333100 — Page 7 3. Pipe shall be furnished with Slip Joints, Mechanical Joints, or Flanged Joints as indicated on the drawings and in accordance with the specifications described below: B. Slip Joints: Slip or "push -on" joints shall be manufactured in accordance with AWWA C111. Pipe thickness shall be Class 350 as determined by AWWA C150. C 1. Bells of "slip" joint pipe shall be contoured to receive a bulbshaped circular rubber gasket, and plain ends shall have a slight taper to facilitate installation. The gasket and associated lubricant shall be furnished by the pipe manufacturer and shall be manufactured in accordance with ANSI Specification A21.11. 2. The jointing shall be done by guiding the plain end into the bell until contact is made with the gasket and by exerting a sufficient compressive force to drive the joint home until plain end makes full contact with the base of the bell. In force main installations, no joint may exceed a maximum deflection of 11 inches in an 18-foot joint of pipe (3 degrees). Restrained -Joint Ductile Iron Pipe: 1. All restrained joint pipe shall be ductile iron, manufactured in accordance with the requirements of ANSI/AWWA C151/A21.51. The rated working pressure for pipe sizes 4-inch through 24-inch shall be 350 PSI and 250 PSI for pipe sizes 30-inch through 64-inch as determined by AWWA C150 unless otherwise noted. Push -on joints for such pipe shall be in accordance with ANSI/AWWA C111/A21.11. 2. Restrained joints shall be restrained push -on joints, TR Flex by U.S. Pipe and Foundry; Lok-Fast by American Cast Iron Pipe Company, or equal. Joints shall be suitable for 250 psi working pressure and be fabricated of heavy section ductile iron casting. Bolts and nuts shall be low carbon steel conforming to ASTM A307, Grade B. 3. External loading conditions shall not deflect the pipe more than 3% in the horizontal direction. Mechanical -Joint Ductile Iron Pipe: 1. All mechanical joint pipe shall be ductile iron manufactured in accordance with AWWA C111. Pipe shall be manufactured in accordance with AWWA C151, and the pipe thickness shall be Class 350 as determined by AWWA C150 unless otherwise noted. 2 All bolts shall be tightened by means of torque wrenches in such a manner that the follower shall be brought up toward the pipe evenly. If effective OCTOBER 2023 Project # 19.00124 333100 — Page 8 sealing is not obtained by tightening the bolts to the specified torques, the joint shall be disassembled and reassembled after thorough cleaning. 3. Bolts for mechanical joints shall be high grade steel, low alloy type, with tee or hex head and American Standard threads. Mechanical joint gland shall be gray iron and shall utilize a plain rubber gasket. E. Flanged -Joint Ductile Iron Pipe: 1. Flanged pipe shall have flanges with long hubs, shop fitted on the threaded end of the pipe. 2. Where required, flanges shall be tapped for stud bolts. Flanges shall be accurately faced at right angles to the pipe axis and shall be drilled smooth and true, and covered with coal tar pipe varnish or otherwise protected against corrosion of flange faces. Flange faces shall be cleaned to bare metal with wire brushed before installation of pipe. 3. Ductile iron flanged joint pipe shall have a thickness of Class 53 minimum and shall conform to AWWA C110 and AWWA C115. Pipe shall be ordered in lengths needed as no pipe shall be cut, threaded or flanged in the field. All pipe shall have Class 125 flanges conforming to AWWA C110 unless otherwise specified. 4. Flanged joints shall be made up with through bolts of the required size. Bolts shall be zinc plated, with good and sound, well fitting threads, so that the nuts may be turned freely by hand. 5. Flanged joints shall be made up using only full face gaskets with a minimum thickness of 1/8-inch. Ring gaskets are not acceptable. Gasket material shall be rubber or approved equal as recommended by the Manufacturer. 6. Connecting flanges shall be in proper alignment and no external force shall be used to bring them together. F. Long Span Pipe: "Long span" type ductile iron pipe shall be used for unsupported spans greater than 20'-0". "Long span" ductile iron pipe and associated pipe joints shall be designed by the pipe manufacturer specifically for elevated crossings with unsupported spans shown on the drawings. The Contractor shall submit shop drawings from the pipe manufacturer for the long span pipe. Shop drawings shall include material specifications for the pipe and joints, and shall specify locations of joints with respect to the pier locations shown on the drawings. Long span ductile iron pipe shall be as manufactured by American, U.S. Pipe, or equal. OCTOBER 2023 Project # 19.00124 333100 — Page 9 2.4 POLYVINYL CHLORIDE SEWER PIPE (PVC) A. Gravity: Polyvinyl Chloride Pipe shall be as manufactured in accordance with ASTM D-3034, latest edition, and shall be suitable for use as a gravity sanitary sewer pipe. The standard dimension ratio (SDR) shall be 35 unless otherwise specified on the contract drawings. B. All polyvinyl chloride pipe joints shall be of an integral bell and spigot of the same material as the pipe. It shall have a solid cross-section with rubber "0" ring securely locked in place at the point of manufacture. C. Force Main: Polyvinyl chloride pipe shall be as manufactured in accordance with ASTM D-2241, latest edition, and shall be suitable for use as a sanitary sewer force main pipe. The standard dimension ratio (SDR) shall be 18 or 21 as shown on the contract drawings. PVC force main piping shall have a green exterior color. Under no circumstances shall pipe with a blue exterior color be accepted. No pipe joint may exceed a maximum deflection of 11 inches in an 18-foot joint of pipe (3 degrees). D. Exposed Piping: Exposed polyvinyl chloride pipe shall be schedule 80 and shall be as manufactured in accordance with ASTM D-1785. Joints between piping and fittings shall be solvent cemented in accordance with ASTM D-2672. Connections to valves shall be threaded in accordance with ASTM D-2464. E. Where PVC pipe is installed in iron pipe size (IPS), an IPS gasket shall be furnished with each fitting to insure compatibility. 2.5 HIGH DENSITY POLYETHYLENE PIPE (HDPE) A. High -density polyethylene pipe may be used in the horizontal directional drilling (HDD) of sewer force mains as indicated on the project drawings. Piping shall be extruded from a polyethylene compound and shall conform to the following requirements: 1. The polyethylene resin shall meet or exceed the requirements of ASTM D3350 for PE 3408 material with a cell classification of 335434C or better. 2. The polyethylene compound shall be suitably protected against degradation by ultraviolet light by means of carbon black, well dispersed by precompounding in a concentration not less than 2 percent. 3. The maximum allowable hoop stress shall be 800 psi at 73.4 OF. 4. The pipe manufacturer shall be listed with the Plastic Pipe Institute as meeting the recipe and mixing requirements of the resin manufacturer for the resin used to manufacture the pipe in this project. OCTOBER 2023 Project # 19.00124 333100 — Page 10 5. The pipe and bends shall have a minimum standard dimension ratio (SDR) wall thickness as specified by the Engineer. 6. Joining shall be performed by thermal butt -fusion in accordance with the manufacturer's recommendations. 7. Sanitary sewer pipe exterior shall be green in color or contain green striping. 2.6 BRASS PIPE AND FITTINGS (For Use In Force Main Appurtenances Only) A. Brass goods furnished under this specification shall be new and unused. All brass pipe and fittings utilized in the assembly of force main appurtenances shall be seamless red brass (copper alloy 230) in accordance with ASTM B43. Metal alloy composition shall be as follows: 1. Copper: 84.0% to 86.0% 2. Lead: 0.05% max. 3. Iron: 0.05% max. 4. Zinc: Remainder (approximately 15%) B. All brass pipe and fittings shall be regular weight (schedule 40) with threaded ends in accordance with ANSI B1.20.1. C. Unless otherwise noted, all pipe and fittings shall have a minimum working water pressure of 150 psi and shall conform to AWWA Standard C800. D. All fittings shall either be stamped or embossed with the manufacturer's name. 2.7 FITTINGS — DIP AND PVC FORCE MAINS A. Fittings in DIP and PVC force mains shall be required where the sanitary sewer force main has a significant change in alignment or grade. The specifications for the force main fittings are described below: 1. All fittings for any type of sewer force main shall be ductile iron mechanical joint fittings manufactured in accordance with ANSI Specification A-21.1 and AWWA Standard C153 (compact body type) for underground piping for 3 inch through 24 inch diameter fittings and AWWA C110 (full body type) for pipe diameters larger than 24 inches. Where flanged pipe is used ductile iron fittings shall be flanged in accordance with AWWA C153 or AWWA C110 (based on sizing as stated above) for exposed piping. All flanges shall be Class 125 unless otherwise noted. OCTOBER 2023 Project # 19.00124 333100 — Page 11 2. The interior of all fittings shall be cement mortar lined (not less then 1 /16- inch), seal coated in accordance with ANSI Specification A21.4 and AWWA C-104, and suitable for a minimum working pressure of 250 PSI unless otherwise specified. 2.8 GASKETS A. All rubber gaskets for DIP and PVC pipe and fittings shall be in accordance with AWWA C111. All gaskets shall be a product of the pipe manufacturer, made specifically for the pipe being installed, and shall match the shape and configuration of the joint. B. Gaskets for ductile iron restrained joint shall be push -on pipe shall provide a trouble -free means of joint restraint for the pipe. These restraining systems shall include gaskets provided by the pipe manufacturer that contain high -strength stainless steel elements spaced around the gasket that develop a dependable gripping action. These push -on restrained joint gaskets shall be rated for a working pressure of 350 PSI for pipe sizes 4-inch through 24-inch and 150 psi for 30-inch pipe. 2.9 WYES, SADDLES, AND SERVICES A. The materials described within this paragraph shall include all materials to construct a complete sanitary sewer service connection from the gravity sanitary sewer main to the edge of the permanent easement or right-of-way. B. Wyes and saddles shall be of the same material and strength as the sewer mains on which they are installed. Saddle type fittings shall not be used on new construction or existing mains for pipes 12 inches in diameter or smaller, unless specifically called for in the Plans and/or Specifications or approved in writing by the Engineer. For ductile iron mains greater than 12 inches in diameter, "CB" Romac tapping saddles as manufactured by Romac Industries, Inc. or an approved equal may be used. Unless otherwise specified in the Plans and/or Specifications, house services shall be constructed of 4-inch diameter Schedule 40 PVC pipe or Class 350 psi ductile iron pipe. C. For taps and services on an existing PVC or VCP sewer mains that are being repaired by trenchless construction methods, flexible saddles as manufactured by NDS/HPI or an approved equal may be utilized. Flexible saddles shall be affixed to the sewer main by stainless steel bands or straps as provided by the manufacturer and by using a two-part epoxy glue uniformly spread over the contact surface of the saddle. D. A compression coupling by Inserta-Tee or approved equal shall be used to re- connect services to existing 8-inch and larger diameter sewer mains that are being rehabilitated by trenchless construction methods. OCTOBER 2023 Project # 19.00124 333100 — Page 12 E. Wyes shall be placed in sanitary sewers so as to properly serve each existing house and each vacant lot facing or butting on the street or alley in which the sewer is being laid, and at such other locations as may be designated by the Engineer. F. The location of all wyes, cleanouts, and service lines installed in the work shall be identified on the plans submitted by the Contractor at the end of the project. 2.10 TRANSITION COUPLINGS A. New Sewer System Construction: 1. In general, transition couplings shall not be permitted in the construction of new sewer systems. For new gravity sewer system construction, the same pipe material shall extend between manholes with no transitions. 2. The pipe material associated with a sewer force main may change, when and where indicated on the Drawings or as approved by the Engineer. When the nominal diameter of the pipe does not change, an approved transition coupling may be used, as necessary, to joint these dissimilar materials. In these cases, a ductile iron, mechanical joint, solid sleeve shall be used to joint these dissimilar materials. The solid sleeve shall be as specified above for fittings and shall be the long body -type. The appropriate gaskets shall be selected based on the outside diameters of the materials being jointed. All gaskets shall be as specified above. In all cases, the gap between the pipe sections being jointed shall not exceed 0.25 inches. 3. Where the nominal diameter of a sewer force main changes, an appropriate ductile iron, mechanical joint reducer, as specified above for fittings, shall be used to joint these materials. The appropriate gaskets shall be selected based on the outside diameters of the material being jointed. All gaskets shall be as specified above. B. Rehabilitation of Existing Sewer Systems: 1. In general, during the rehabilitation of existing sewer lines, the use of appropriate transition couplings shall be permitted as approved by the Engineer. All changes in pipe size within the gravity sewer collection system shall require the installation of a manhole as specified elsewhere. 2. Jointing for gravity sewer lines shall require an appropriate shielded rubber sewer coupling. In all cases, the gap between the pipe sections being jointed shall not exceed 0.25 inches. The coupling shall consist of a rubber sleeve conforming to ASTM C425 and ASTM C1173 with a Grade 316 stainless steel shear ring and clamps conforming to ASTM A240. Clamps shall be included with nut and bolt or worm drive take-up OCTOBER 2023 Project # 19.00124 333100 — Page 13 fasteners. "O" ring -type seals shall be provided under each sealing clamp to prevent slippage and provide a positive seal. 3. When the rehabilitation of a sanitary sewer force main requires the use of a transition coupling, the use of such couplings shall be as approved by the Engineer. When the nominal diameter of the pipe does not change, an approved transition coupling may be used, as necessary. In these cases, a ductile iron, mechanical joint, solid sleeve shall be used to joint these materials. The solid sleeve shall be as specified above for fittings and shall be the long body -type. The appropriate gaskets shall be selected based on the outside diameter(s) of the material(s) being jointed. All gaskets shall be as specified above. In all cases, the gap between the pipe sections being jointed shall not exceed 0.25 inches. 4. Where the nominal diameter of a sewer force main changes as part of a rehabilitation project, an appropriate ductile iron, mechanical joint reducer, as specified above for fittings, shall be used to joint these materials. The appropriate gaskets shall be selected based on the outside diameters of the material being jointed. All gaskets shall be as specified above. 2.11 MANHOLES A. Standard precast concrete manholes sections shall conform to the latest revision of ASTM C 478. Tapered section and transition sections, where required, shall be of eccentric cone design, having the same wall thickness and reinforcement as the cylindrical ring sections. Flat slab tops shall be required for very shallow manholes where shown or specified. Flat slab tops shall ONLY be utilized when/where approved for use by the Engineer. All manholes shall be constructed to the sizes, shapes and dimensions and at the locations shown on the plans. Unless otherwise shown on the plans, manhole diameters, wall thicknesses and bottom thicknesses shall be as follows: Pipe Size Diameter Wall Bottom (inches) (feet) Thickness Thickness inches inches 8 through 18 4 5 6 21 through 36 5 5 8 39 through 54 6 6 8 Larger than 54 8 8 8 B. The minimum wall thickness of all manhole riser sections shall be as shown in the table above. Cone sections shall have a minimum wall thickness of 8 inches at their top. Suitable openings for inlet and outlet pipes shall be cast into OCTOBER 2023 Project # 19.00124 333100 — Page 14 the base section for standard connections and into the riser section for drop connections. These openings shall be circular, accurately located and appropriately sized for each manhole. C. The height or depth of each manhole will vary with the location, but unless otherwise indicated, it shall be constructed such that the top of the manhole matches that of the finished grade surrounding the manhole and the invert is constructed at elevation shown on the plans. As directed by the Engineer (or as otherwise indicated on the plans) the top elevations of some manholes maybe elevated above the finished grade of the surrounding area in wooded or other natural (unmaintained) areas. In all cases, the number of manhole sections (joints) necessary to construct the required height shall be minimized. D. All manhole and wet well bases shall be monolithically poured complete with a bottom. When indicated on the drawings, precast concrete base sections shall be provided with extended base sections or increased bottom thickness to provide ballast to prevent flotation. Extended bases, as required by the drawings, may be included in the monolithic pour of the base or integrally cast as approved by the Engineer. E. Minimum compressive strength of concrete shall be 4,000 psi at 28 days and shall comply with ACI 318, and ACI 350. The maximum permissible absorption shall be 6.0 percent. All cement used in the mixture shall be in accordance with ASTM C 150, Type II. Fine aggregate shall be sand, while coarse aggregate shall be crushed gravel, both in accordance with ASTM C 33. All water utilized in the concrete mix shall be potable water. Bases and risers shall be reinforced with a single cage of steel placed within the center third of the wall. Welded wire fabric shall be in accordance with ASTM A 185. Steel reinforcing bars shall be grade 60 deformed steel in accordance with ASTM A 615. The tongue or the groove of the joint shall contain one (1) line of circumferential reinforcement equal in area to that in the barrel of the manhole riser. The minimum cross -sectional area of steel per linear foot shall be 0.12 square inches. Precast manhole sections shall fit together readily. F. The quality of materials, the process of manufacture, and the finished manhole sections shall be subject to inspection and approval by the Engineer. The manhole sections shall be perpendicular to their longitudinal axis within the limits listed in ASTM C 478. G. Joint Sealing Materials: Joints shall be sealed by two (2) butyl rubber seals. Each seal shall be as described below: 1. Butyl Seals shall consist of a plastic or paper -backed butyl rubber rope no less than 1 inch cross section. When manholes are larger than 4 feet diameter or have a larger than normal space between the joints, the length and or diameter of the rope shall be increased as required to achieve a seal. Butyl rubber material shall conform to Federal Specification SS- OCTOBER 2023 Project # 19.00124 333100 — Page 15 S210A, AASHTO M-198, Type B - Butyl Rubber and as follows: maximum of 1 percent volatile matter and suitable for application temperatures between 10 and 100 degrees F. Butyl rubber shall be applied to clean, dry surfaces only. Use of 2 independent wraps of Butyl Rubber placed side -by -side (not stacked) qualifies for the requirement of two seals. 2. Internal O-Ring Gaskets and Internal Rubber Gaskets shall not be used. H. Manhole Sleeves and Entrance Joints: Flexible manhole sleeves or flexible manhole entrance joints shall be installed on all pipes entering and leaving precast manholes. Manhole openings shall be accurately core drilled or cast in place. Sleeve and joint material shall be of high quality synthetic rubber which complies with the requirements of ASTM Specification C 923. Sleeve hardware (clamps, bands, straps, draw bolts, nuts, etc.) shall be stainless steel and make a watertight union. Sleeves shall be Kor-N-Seal I, Kor-N-Seal II, flexible connectors models 72, 73, 74, 107, 117, 126, 127, 128, 1610, or 1612 as manufactured by EPCO, or shall be as manufactured by Lock Joint a subsidiary of Gifford -Hill -American, Inc. or comparable sleeves as manufactured by the Press Seal Gasket Corporation, or equal. Flexible manhole entrance joints may be cast into the wall of the manhole base or may be installed by coring the manhole wall and installing the flexible connector to form a tight waterstop. Joints shall be watertight under a 30 foot head of water. Flexible manhole entrance joints shall be A-LOK Joints as manufactured by the A-LOK Products Corp., Press Wedge II as manufactured by the Press Seal Gasket Corp., or equal. Flexible manhole sleeves and flexible manhole entrance joints shall be installed in accordance with instructions of their manufacturer. Manhole Steps: 1. Steps shall be a copolymer polypropylene plastic reinforced with a '/2 inch diameter, grade 60 bar and have serrated tread and tall end lugs. Step pull out strength shall be a minimum of 2,000 pounds when tested according to ASTM C-497. 2. Steps shall be required in all structures with a depth greater than four (4) feet. Steps shall be vertically aligned and uniformly spaced for the entire depth of the structure. Steps shall be located in the structures along the vertical face of the eccentric cone and so as to land upon a bench. 3. Steps shall be vertically spaced between 12 and 16 inches on center. Step width shall be a minimum of 12 inches. Steps shall protrude from the wall of the structure a minimum of five (5) inches and a maximum of seven (7) inches. 4. Secure steps to the wall with a compression fit in tapered holes. Steps shall not be vibrated or driven into freshly cast concrete. Steps shall not be grouted in place. OCTOBER 2023 Project # 19.00124 333100 — Page 16 J. Precast Grade Rings and Brick: 1. Precast reinforced concrete grade rings or brick shall be used to adjust ring and covers to finished grade. No more than 12 vertical inches of grade rings or brick will be allowed per manhole. Grade rings shall conform to ASTM C478 and shall be no less than 6 inches and no more than 9 inches in height with a diameter matching that of the frame and cover. 2. All brick used shall be solid and shall be made from Concrete, Clay, or Shale, and shall be of standard building size. K. Manhole Frames and Covers: 1. Frames and covers shall be cast iron of superior quality, tough and even texture. Castings shall be gray iron conforming to ASTM A 48, size as indicated, free from blow holes, porosity, hard spots, shrinkage distortion, or other defects, and well cleaned. The bearing surface between frame and cover shall be machined to prevent rocking and rattling. 2. The standard manhole casting shall be designed for heavy duty use with a 190 pound frame and 125 pound cover. All frames and covers shall comply with AASHTO HS20 loading requirements as well as North Carolina DOT standard 840.54. The minimum opening within the interior of the frame shall be 24-inches. The frame shall have a 4-inch minimum width flange with the cover being 26 inches in diameter and shall include an indented top design with lettering cast into the cover, using the wording "SANITARY SEWER." Acceptable products include U.S. Foundry USF 669 ring and KL cover, or an approved equal. 3. Special waterproof manhole frame and covers shall be installed only at those locations indicated on the contract drawings. Watertight rings and lids shall be U.S. Foundry 669-KL-BWTL with a 125-pound cover. Ring shall have a flat type gasket and cover shall be bolted down with a minimum of four (4) bolts. 4. After the manhole has been set in its final position, set the manhole frame to the required elevation using no more than 12 inches of precast concrete grade rings, or bricks sealing all joints between cone, adjusting rings, and manhole frame. When grade rings or bricks are used, grout with non - shrink grout. Where manholes are constructed in paved areas, the top surface of the frame and cover shall be tilted so as to conform to the exact slope, crown and grade of the existing surrounding pavement. Manhole frames which are placed above final grade will have frames attached to manhole cone section by means of 5/8-inch diameter stainless steel anchors and washers. One anchor bolt shall be provided per hole. OCTOBER 2023 Project # 19.00124 333100 — Page 17 5. When flat slab tops are utilized, frames shall be cast into the top for access into manholes. L. Manhole Inverts and Benches: 1. All sanitary sewer manholes (excluding wet well structures) shall include inverts and benches. Manhole inverts and benches shall be constructed of brick and cement grout or precast concrete in accordance with the standard details shown on the drawings. Inverts shall have a "U" shaped cross section of the same diameter as the invert of the sewers which they connect. "U" shaped inverts shall be constructed to a minimum depth of 6 inches for 8 inch sewers and to full pipe diameter depth of the outlet sewer main for larger mains. The manhole invert shall be carefully formed to the required size and grade by gradual and even changes in sections. Changes in direction of flow through the manhole, whether horizontal or vertical, shall be made with true tangent curve(s) with as large a radius as the size of the manhole will permit. Provide a '/2 inch radius at the intersection of 2 or more channels. The minimum concrete thickness in the invert of the channel shall be 2 inches, not including the manhole base thickness. The fall across the manhole invert shall be as noted on the plans. 2. Manhole benches shall be constructed with a slope of 1 inch per foot (8 percent) sloped toward the invert channel. Finish benches shall provide a uniform slope from the high point at the manhole wall to the low point at invert channel. Provide a radius (1/8 inch to 1 inch range is acceptable) at the edge of the bench and channel. 3. When the invert and bench are not constructed by the precast manufacturer, the Contractor shall construct the invert and bench using 3,000 psi concrete or non -shrink grout. Non -shrink grout may be plastered over layered brick and mortar in lieu of solid non -shrink grout invert. 4. Gradual smooth sided depressions and high spots may be allowed so long as diameter of invert channel ranges from 1/4 inch less than, or 1/2 inch more than the nominal pipe diameter are maintained. Voids, chips, or fractures over 1/8 inch in diameter or depth shall be filled with a non -shrink grout and finished to a texture reasonably consistent with the bench surface. All work from collar down shall have a steel trowel finish. 5. Pipe Openings: Pipe openings shall provide clearance for pipe projecting a minimum of 2 inches inside the manhole. The crown of smaller diameter pipes shall be no lower than the crown of the outlet pipe. Grout pipe penetrations, including pipe crown, to provide a smooth, uniform finish using non -shrink grout. OCTOBER 2023 Project # 19.00124 333100 — Page 18 M. Manhole Drops: Standard drop manholes will be constructed only at those locations shown on the drawings or as approved by the Engineer. The design of the drop connection shall be in accordance with the standard detail drawing. The cost of the extra pipe, labor, etc. required to construct a drop manhole will be included in the unit price for the drop manhole at the depths indicated. 1. Where designated on the contract drawings, a 4-inch diameter vent pipe shall be installed as an integral part of the manhole. The vent pipe is to be tapped into the upper most section of the manhole, anchored in concrete and extended vertically to the elevation shown on the drawings. The pipe shall have a reverse bend and screen to prohibit rain and foreign materials from entering pipe. 2. The pipe material shall be Schedule 40 Steel with a coal tar interior lining in accordance with AWWA C203 and have an exterior finish consisting of two (2) coats of epoxy paint as approved by the Engineer. 2.12 SWING CHECK VALVES A. Swing check valves smaller than 3 inches in diameter shall be single disc with renewable bronze seat rings, bronze discs or disc rings and bronze disc hinges and pins and shall be designed to give a full diameter passage. B. Swing check valves 3 inches in diameter and larger shall be constructed with heavy cast-iron or cast -steel body with a bronze or stainless steel seat ring and a non -corrosive shaft for attachment of weight and lever. The valves shall absolutely prevent the return of water back through the valve when the inlet pressure decreases below the outlet pressure. The valve disc shall be of cast-iron or cast -steel and shall be suspended from a non -corrosive shaft. 2.13 PLUG VALVES A. Plug valves shall be solid one piece, cast of ASTM A536 ductile iron. The plug shall have a cylindrical seating surface eccentrically offset from the center of the shaft. Plug shall not contact the seat prior to 90 percent closed. Plug facing shall be Chloroprene (CR), or other resilient facing suitable for the application. B. Bodies shall be of ASTM A126 Class B cast iron. Port shall be rectangular. Port area shall be 100 percent of Standard class pipe area. Bearings shall be sleeve type and made of sintered, oil -impregnated permanently lubricated type 316 stainless steel per ASTM A743 Grade CFBM. C. Seats shall be 1/8-inch thick welded overlay of not less than 95 percent pure nickel. Seat shall be at least '/2-inch wide and raised. The raised surface shall OCTOBER 2023 Project # 19.00124 333100 — Page 19 be completely covered with nickel to insure that the resilient plug face contacts only the nickel seat. D. Adjustable Packing shall be of the multiple V-ring type, with a packing gland follower. Shaft seals shall permit inspection, adjustment or complete replacement of packing without disturbing any part of the valve or actuator assembly except the packing gland follower. E. Grit Excluders made of PTFE shall be provided to prevent the entry of grit and solids into the bearing areas. F. Pressure ratings shall be bi-directional and 175 psi on sizes 3-inch through 12- inch diameters and 150 psi for 14-inch through 36-inch diameters. Every valve shall be given a certified hydrostatic and seat test, with test reports being available upon request. G. Worm gear actuators shall be provided on all valves six inches and larger. Actuators shall be enclosed in a cast iron housing, with outboard seals to protect the bearings and other internal components. The actuator shaft and gear quadrant shall be supported on permanently lubricated bronze bearings. H. Buried actuators shall be 90 percent grease filled. Input shaft and fasteners shall be stainless steel. Actuator mounting brackets shall be totally enclosed. Eccentric plug valves and actuators shall meet or exceed the latest revisions of AMA C517 and other applicable standards. Flanged ends shall be per ANSI B16.1 and mechanical joint ends per AMA C111. 2.14 BUTTERFLY VALVES (For Use In Reclaimed Water Systems Only) A. Valve shall be designed, manufactured, and tested in accordance with AWWA C504, latest revision, and include the following design features. Valve shall be rated and tested for absolute, zero leakage shut-off. B. Valve body shall be cast iron per ASTM A 126 Class B or ductile iron per ASTM A536 Grade 65-45-12. Flanged end valves shall be faced and drilled per ANSI B16.1, Class 125, or as specified by purchaser. Mechanical joint ends shall be per ANSI A21.11 and include mechanical joint end accessories. Valve body shall include a stainless steel seat ring that is mechanically retained without use of clamping devices, adjusting segments, or other hardware being in the waterway. C. Valve disc shall be solid type ductile iron without any external vanes, ribs, etc., to obstruct flow. Resilient seat shall be located on edge of disc, offset from the shaft, and seal against mating stainless steel body seat with 36 degree uninterrupted contact. The resilient seal shall be locked to the disc by three separate means of retention, and be field -adjustable, if necessary, with no tools OCTOBER 2023 Project # 19.00124 333100 — Page 20 other than a standard socket wrench. Replacement of seat in field shall be possible without valve disassembly. The disc shall be connected to the offset stainless steel shaft by locked taper wedge keys and stainless steel retaining nuts on the back side of the disc. Taper keys shall be heat treated 416 Stainless Steel for added strength. Shaft shall be stub type for valves 30inches and larger in diameter; one piece for valves 24 inches in diameter and smaller. The valve shall be equipped with adjustable thruster for centering the disc on valves 30 inches and larger in diameter, if required. D. Shaft shall have nylon sleeve or woven Teflon fiberglass -backed sleeve for bearing surfaces. Bearings shall be self lubricating. E. Valve body shall be primed with manufacturer's standard primer. 2.15 VALVE BOXES A. All valve boxes shall be cast iron and shall conform to ASTM A48 and AWWA M44. Valve boxes shall be of the adjustable screw type (based on depth of burial) with a base to fit the valve yoke with a removable cover with the word "SEWER" cast thereon. 2.16 SEWAGE AIR/VACUUM RELEASE VALVES A. Acceptable Products: 1. The air/vacuum release valve shall be designed specifically for use on sanitary sewer pressure (force) mains. It shall exhaust large volumes of air that may be present in a system during filling of the main or on pump start-up. It shall also allow air to re-enter when the system is drained intentionally or due to a break in the main (prevents vacuum from forming). 2. Three inch and smaller combination air valves with operating pressures of 150 psi or less shall be of the integral type with a valve assembly which functions as both an air and vacuum valve and an air release valve. The valves shall be DeZurik Apco/Hilton "Series 400", GA Industries "Figure 942", Crispin "Type SA", Val-Matic "Models 801A/802A/803A" or ARI "D-020". 3. Four inch and larger combination air valves shall consist of an air and vacuum valve with an externally mounted air release valve. The valves shall be DeZurik Apco/Hilton "Series 400C", GA Industries "Figure 950 Kinetic Custom Combination Air Valves", Crispin "Type SL", or Val-Matic "Model No. 48A/49A". OCTOBER 2023 Project # 19.00124 333100 — Page 21 B. Materials: 1. Except as modified or supplemented herein, materials of construction shall comply with the standards of the authorities having jurisdiction. The use of stressed thermoplastic components will not be acceptable. a. Valve Trim: Bronze or austenitic stainless steel. b. Float: Austenitic stainless steel. C. Seats: Buna-N C. Shop Coating and Painting: 1. All interior and exterior ferrous metal surfaces, except stainless steel components, shall be shop painted for corrosion protection. The valve manufacturer's standard coating will be acceptable. Field painting is covered in the protective coatings section. D. Shutoff Valves: 1. A shutoff valve shall be provided in the piping leading to each air release valve and combination air valve. Each 4-inch and larger combination air valve shall be provided with a shutoff valve between the air and vacuum valve and the air release valve. PART 3 - EXECUTION 3.1 BYPASS PUMPING A. Under this item the Contractor is required to furnish all materials, labor, equipment, power, maintenance, etc. to implement a temporary pumping system for the purpose of diverting the existing flow around the work area for the duration of the project. B. Field Quality Control and Maintenance- 1 . Testing: a. The Contractor shall perform leakage and pressure tests on the new bypass pumping discharge piping using clean water prior to actual operation. The Owner and Engineer shall be given 24-hours' notice prior to testing. b. The bypass pumping system shall be tested and operated successfully for 24 continuous hours, and the wet well shall be emptied, prior to start of work. 2. Inspection: OCTOBER 2023 Project # 19.00124 333100 — Page 22 a. The Contractor shall monitor the bypass pumping operation at all times to ensure that the system is working correctly. 3. Maintenance Service: a. The Contractor shall insure that the temporary pumping system is properly maintained and a responsible operator shall be on -site when pumps are operating. b. A factory -trained service technician shall be located within at least 120 miles from the project site with a full complement of in -stock spare parts for pumps and piping. 4. Extra Materials: a. Spare parts for pumps and piping shall be kept on site as required. b. Adequate hoisting equipment for each pump and accessories shall be maintained on the site. C. Preparation: 1. Precautions: a. The Contractor shall make all arrangements for bypass pumping during the time when the main is shut down for any reason. System must overcome any existing force main pressure on discharge. b. Contractor is responsible for locating any existing utilities in the area the Contractor selects to locate the bypass pipelines. The Contractor shall locate the bypass pipelines to minimize any disturbance to existing utilities and shall obtain approval of the pipeline locations from the Owner. All costs associated with relocating utilities and obtaining all approvals shall be paid by the Contractor. C. During all bypass pumping operation, the Contractor shall protect the Owner's pump station and/or sewer mains and all local sewer lines from damage inflicted by any equipment. The Contractor shall be responsible for all physical damage to the pumping station and main and all sewer lines caused by human or mechanical failure. D. Performance Requirements: 1. The design, installation and operation of the temporary pumping system shall be the Contractor's responsibility. The bypass system shall meet the requirements of all codes and regulatory agencies having jurisdiction. 2. The Contractor shall provide all necessary means to safely convey the incoming sewage past the work area. The Contractor will not be permitted to stop or impede the flows in existing force mains. OCTOBER 2023 Project # 19.00124 333100 — Page 23 3. The Contractor shall maintain sewer flow around the work area in a manner that will not cause surcharging of sewers, damage to sewers and that will protect public and private property from damage and flooding. Any sanitary sewer overflow that occurs due to a failure in the bypass system will be the responsibility of the Contractor. Any penalties issued by authorities having jurisdiction will be reimbursed to the Owner by the Contractor. 4. The Contractor shall protect water resources, wetlands and other natural resources. No sewage or water from the bypass pumping operation shall be spilled on the ground or allowed to drain to storm drains. When disassembling bypass pumping pipe, the Contractor shall ensure that any sewage remaining in the pipe is drained back to the sewer collection system. All spills shall be reported to the Owner, contained and cleaned up immediately by the Contractor. E. Installation and Removal: 1. The Contractor shall remove manhole sections or make connections to the existing sewer and construct temporary bypass pumping structures only at the access location indicated on the Drawings and as may be required to provide adequate suction conduit. 2. Plugging or blocking of sewage flows shall incorporate primary and secondary plugging device. When plugging or blocking is no longer needed for performance and acceptance or work, it is to be removed in a manner that permits the sewage flow to slowly return to normal without surge, to prevent surcharging or causing other major disturbances downstream. 3. When working inside manholes or sewer lines, the Contractor shall comply with OSHA requirements when working in the presence of sewer gases, combustible oxygen -deficient atmospheres, and confined spaces. 4. The installation of the bypass pipelines is prohibited in all saltmarsh/wetland areas. The bypass pipeline must be located off streets and sidewalks and on shoulders of the roads. When the bypass pipeline crosses local streets and private driveways, the contractor must place the bypass pipelines in trenches and cover with temporary pavement. Upon completion of the bypass pumping operations, and after the receipt of written permission from the Owner, the Contractor shall remove all the piping, restore all property to pre - construction condition and restore all pavement. The Contractor is responsible for obtaining any approvals for placement of the temporary pipeline within public ways from authorities having jurisdiction. OCTOBER 2023 Project # 19.00124 333100 — Page 24 5. If, at any time during construction, effluent from the existing sewer is not fully contained by the bypass system, gravity service will be restored by a temporary tie to the new construction and work will be suspended until the problem is resolved to the satisfaction of the Engineer 3.2 EARTHWORK A. Excavating, trenching, backfilling and compaction requirements are specified in Division 31 Section "Earth Moving." 3.3 PIPING AND VALVE APPLICATIONS A. General: Use pipe, fittings, and joining methods for piping systems according to the following applications: 1. Do not use flanged pipe, fittings or valves or unions for underground (buried) piping. Fittings and valves for underground (buried) piping shall be mechanical joint. 2. Flanged pipe, fittings and valves and unions shall be used on aboveground piping and piping in vaults. 3. Transition couplings and special fittings with pressure ratings at least equal to piping pressure rating may be used as specified, unless otherwise indicated. 3.4 PIPING INSTALLATION A. Existing Utilities and Separation Requirements: 1. The Contractor shall be required to excavate to determine the precise location of utilities or other underground obstructions which are shown on the Plans and/or marked by the utility owners. Such location and excavation shall be at least 500 feet ahead of construction, unless otherwise noted. This work shall be done at no additional cost to the Owner. 2. All utility owners shall be notified prior to excavation as required by the 1985 Underground Damage Prevention Act. Utility owners who are members of NC OneCall may be notified by calling 811 (toll free) before any excavation or drilling. The Contractor will be fully responsible for damage to any utilities if the owners have not been properly notified as required by the Underground Damage Prevention Act. All damage to such structures and pipelines and all damage to property or persons resulting from damage to such structures and pipelines shall be borne by the OCTOBER 2023 Project # 19.00124 333100 — Page 25 Contractor and shall be completely repaired within a reasonable time. No claim shall be made against the Owner for damage or delay of the work on account of the proximity of, or the leakage from, such structures and pipelines. Where high pressure gas lines are to be crossed, they shall be uncovered by hand excavation methods before other excavation near them is started. 3. Utility owners may, at their option, have representatives present to supervise excavation in the vicinity of their utilities. The cost of such supervision, if any, shall be borne by the Contractor. 4. Conflicts with underground utilities may necessitate changes in alignment and/or grade of this construction. All such changes will be approved by the Engineer before construction proceeds. 5. When underground obstructions not shown on the Plans are encountered, the Contractor shall promptly report the conflict to the Engineer and shall not proceed with construction until the conflict is resolved. 6. When a sewer main or lateral crosses an existing water main or other utility, the Contractor shall make the installation in accordance with the minimum specifications of the Controlling Agency and in accordance with the following minimum requirements. When a sewer main or lateral crosses or parallels an existing utility, the following clearance requirements are to be met or ferrous sewer pipe with water tight joints shall be used for a distance of 10 feet outside said point of crossing or until horizontal separation requirements are achieved. a. Min. Vertical Separation for Sewer Crossings: 1) Storm Sewers - 24" Vertical 2) Under Water - 18" Vertical 3) Over Water - 18" Vertical * Sewer over water requires that both pipes shall be ferrous pipe with a 20 foot jointless span centered at crossing. * 4) Cable - 24" Vertical 5) Power - 24" Vertical 6) Gas - 24" Vertical b. Horizontal Separations: 1) Storm Sewers - 5' 2) Water Mains - 10, 3) Water Supply - 100' (WS-I Waters, Class I or Class II impounded reservoirs) 4) Water Supply - 50' (WS-11, WS-III, B, SA, ORW, HQW or SB Waters — from Normal High Water) 5) Designated Trout Streams - 25' 6) Other Stream, Lake or Impoundment - 10' OCTOBER 2023 Project # 19.00124 333100 — Page 26 7) Building Foundation - 5' 8) Basement - 10' 9) Ground Water Lowering and 10) Swimming Pool - 10' 11) Private Wells - 25' 12) Public Wells - 50' Conventional Pipe Laying: 1 2 Surface Drainage Ditch 10' The layout of gravity sanitary sewer lines and invert elevations at governing points shall be as shown on the drawings. The Contractor shall do all layout work for lines and grades from that information shown on the drawings or as furnished by the Engineer. a. When a laser beam instrument is used to set line and grade, the unit must be maintained in good working order, and the calibration checked daily for both alignment and percent grade. In the event the required accuracy of alignment and grade is not adhered to, the Engineer will prohibit the use of laser beams. b. Install piping beginning at low point, true to the grades and alignment indicated with unbroken continuity. Pipe shall be laid with bell ends facing in the direction of pipe laying, unless directed otherwise by the Engineer. In all cases, pipe is to be installed in strict accordance with the manufacturer's recommendations and the contract material specifications. The Engineer may augment any manufacturer's installation recommendations if, in his opinion, it will best serve the interest of the Owner. C. Proper tools, implements, and facilities satisfactory to the Engineer shall be provided and used for the safe and convenient prosecution of pipe laying. All pipe and other materials used in the laying of pipe will be lowered into the trench piece by piece by means of suitable equipment in such a manner to prevent damage to the pipe, materials, to the protective coating on the pipe materials, and to provide a safe working condition to all personnel in the trench. Each piece of pipe being lowered into the trench shall be clean, sound and free from defects. It shall be laid on the prepared foundation, as specified elsewhere to produce a straight line on a uniform grade, each pipe being laid so as to form a smooth and straight inside flow line. Pipe shall be removed at any time if broken, injured or displaced in the process of laying same, or of backfilling the trench. d. When cutting short lengths of pipe, a pipe cutter, as approved by the Engineer, will be used and care will be taken to make the cut at right angles to the centerline of the pipe or on the exact skew as shown OCTOBER 2023 Project # 19.00124 333100 — Page 27 on the plans. In the case of push -on pipe, the cut ends shall be tapered with a portable grinder, or coarse file to match the manufactured taper. e. Place a plug in the end of incomplete piping at end of day and when work stops. No trench water or other material shall be permitted to enter the pipe. Clear interior of piping and manholes of dirt and superfluous material as work progresses. Maintain swab or drag in piping, and pull past each joint as it is completed. f. Where the pipe is laid on a grade of 20 percent or greater, the laying shall start at the bottom of the slope and proceed upward with the bell end of the new pipe upgrade. All pipe laid on a grade of 20 percent or greater shall require thrust blocking or keying as shown on the drawings and standard details. g. Install ductile iron, gravity sewer piping in accordance with ASTM A 746. h. Install PVC gravity sewer piping in accordance with ASTM D 2321 and ASTM F 1668. Install reinforced -concrete sewer piping in accordance with ASTM C 1479 and ACPA's "Concrete Pipe Installation Manual." All sanitary sewer force main piping shall be installed with 36-inch minimum cover over the top of the pipe. k. Install ductile iron force main piping in accordance with AWWA C600 or AWWA M41. Install PVC force main piping in accordance with AWWA M23 or ASTM D 2774 and ASTM F 1668. m. Install detectable warning tape over all nonferrous piping. C. Exposed Piping: 1. All exposed piping to be installed inside wetwells, vaults and buildings shall be installed as shown on the Drawings and field painted as described below. All exposed pipe shall be ductile iron utilizing flanged joints unless otherwise noted. 2. All exposed ductile iron pipe, fittings and valves shall be field painted with two (2) coats of epoxy paint as recommended by the paint manufacturer. Color of paint shall be as selected by the Owner. D. Horizontal Directional Drilling of HDPE Force Mains: OCTOBER 2023 Project # 19.00124 333100 — Page 28 1. The Contractor may install HDPE force mains by means of horizontal directional drilling. The Contractor shall assemble, support, and pretest the pipeline prior to installation in the directional drill tunnel. 2. Horizontal directional drilling shall consist of the drilling of a small diameter pilot hole from one end of the alignment to the other, followed by enlarging the hole diameter for the pipeline insertion. The exact method and techniques for completing the directionally drilled installation will be determined by the Contractor, subject to the requirements of these specifications. 3. The Contractor shall prepare and submit a plan to the Engineer describing the insertion of the HDPE pipe into the opened bore hole. The plan shall include pullback procedure, ballasting, use of rollers, side booms and side rollers, coating protection, internal cleaning, internal gauging, hydrostatic tests, dewatering, and purging. 4. The required piping shall be assembled in a manner that does not obstruct adjacent roadways or public activities. The Contractor shall erect temporary fencing around the entry and exit pipe staging areas. 5. Each length of pipe shall be inspected and cleaned as necessary to be free of debris immediately prior to joining. 6. Pipes shall be joined to one another be means of thermal butt -fusion. Polyethylene pipe lengths to be joined by thermal butt -fusion shall be of the same type, grade, and class of polyethylene compound and supplied from the same raw material supplier. 7. Mechanical connections of the polyethylene pipe to auxiliary equipment shall be through flanged connections which shall consist of the following: a. A polyethylene "sub end" shall be thermally butt -fused to the ends of the pipe. b. Provide ASTM A240, Type 304 stainless steel backing flange, 125- pound, ANSI B16.1 standard, and gaskets as required by the manufacturer. C. Stainless steel bolts and nuts of sufficient length to show a minimum of three complete threads when the joint is made and tightened to the manufacturer's standard. Retorque the nuts after 4 hours. d. Butt -fusion of pipes shall be performed in accordance with the manufacturer's recommendation as to equipment and technique. Butt -fusion jointing shall be 100% efficient offering a joint weld strength equal to or greater than the tensile strength of the pipe. OCTOBER 2023 Project # 19.00124 333100 — Page 29 8. Pipe installed by the directional drilled method must be located in plan as shown on the drawings, and must be no shallower than shown on the drawings unless otherwise approved. The Contractor shall plot the actual horizontal and vertical alignment of the pilot bore at intervals not exceeding 30 feet. The "as built" plan and profile shall be updated as the pilot bore is advanced. The Contractor shall at all times provide and maintain instrumentation that will accurately locate the pilot hole and measure drilling fluid flow and pressure. The Contractor shall grant the Engineer access to all data and readout pertaining to the position of the bore head and the fluid pressure and flows. 9. When requested, the Contractor shall provide explanations of this position monitoring and steering equipment. The Contractor shall employ experienced personnel to operate the directional drilling equipment and, in particular, the position monitoring and steering equipment. No information pertaining to the position or inclination of the pilot hole bores shall be withheld from the Engineer. 10. Each exit point shall be located as shown with an over -length tolerance of 10 feet for directional drills of 1,000 linear feet or less and 40 feet for directional drills of greater than 1,000 linear feet and an alignment tolerance of 5 feet left/right with due consideration of the position of the other exit points and the required permanent easement. The alignment of each pilot bore must be approved by the Engineer before pipe can be pulled. If the pilot bore fails to conform to the above tolerances, the Engineer may, at his option, require a new pilot boring to be made. 11. After the pipe is in place, cleaning pigs shall be used to remove residual water and debris. After the cleaning operation, the Contractor shall provide and run a sizing pig to check for anomalies in the form of buckles, dents, excessive out -of -roundness, and any other deformations. The sizing pig run shall be considered acceptable if the survey results indicate that there are no sharp anomalies (e.g. dents, buckles, gouges, and internal obstructions) greater than 2 percent of the nominal pipe diameter, or excessive ovality greater than 5 percent of the nominal pipe diameter. For gauging purposes, dent locations are those defined above which occur within a span of 5 feet or less. Pipe ovality shall be measured as the percent difference between the maximum and minimum pipe diameters. For gauging purposes, ovality locations are those defined above which exceed a span of 5 feet. 12. Reaming: Reaming operations shall be conducted to enlarge the pilot bore after acceptance of the pilot bore. The number and size of such reaming operations shall be conducted at the discretion of the Contractor. 13. Pulling Loads: The maximum allowable pull exerted on the HDPE pipelines shall be measured continuously and limited to the maximum OCTOBER 2023 Project # 19.00124 333100 — Page 30 allowed by the pipe manufacturer so that the pipe or joints are not over stressed. 14. Torsion and Stresses: A swivel shall be used to connect the pipeline to the drill pipe to prevent torsional stresses from occurring in the pipe. 15. The lead end of the pipe shall be closed during the pullback operation. 16. Pipeline Support: The pipelines shall be adequately supported by rollers and side booms and monitored during installation so as to prevent over stressing or buckling during pullback operation. Such support/rollers shall be spaced at a maximum of 60 feet on centers, and the rollers to be comprised of a non-abrasive material arranged in a manner to provide support to the bottom and bottom quarter points of the pipeline allowing for free movement of the pipeline during pullback. Surface damage shall be repaired by the Contractor before pulling operations resume. 17. The Contractor shall at all times handle the HDPE pipe in a manner that does not over stress the pipe. Vertical and horizontal curves shall be limited so that wall stresses do not exceed 50 percent of yield stress for flexural bending of the HDPE pipe. If the pipe is buckled or otherwise damaged, the damaged section shall be removed and replaced by the Contractor at his expense. The Contractor shall take appropriate steps during pullback to ensure that the HDPE pipe will be installed without damage. 18. During drilling, reaming, or pullback operations, the Contractor shall make adequate provisions for handling the drilling fluids, or cuttings at the entry and exit pits. To the greatest extent practical, these fluids must not be discharged into the waterway. When the Contractor's provisions for storage of the fluids or cuttings on site are exceeded, these materials shall be hauled away to a suitable legal disposal site. The Contractor shall conduct his directional drilling operation in such a manner that drilling fluids are not forced through the subbottom into the waterway. After completion of the directional drilling work, the entry and exit pit locations shall be restored to original conditions. The Contractor shall comply with all permit provisions. 19. Pits constructed at the entry or exit point area shall be so constructed to completely contain the drill fluid and prevent its escape to the beach or waterway. 20. The Contractor shall utilize drilling tools and procedures which will minimize the discharge of any drill fluids. The Contractor shall comply with all mitigation measures listed in the required permits and elsewhere in these specifications. OCTOBER 2023 Project # 19.00124 333100 — Page 31 21. To the extent practical, the Contractor shall maintain a closed loop drilling fluid system. 22. The Contractor shall minimize drilling fluid disposal quantities by utilizing a drilling fluid cleaning system which allows the returned fluids to be reused. 23. As part of the installation plan specified herein before, the Contractor shall submit a drilling fluid plan which details types of drilling fluids, cleaning and recycling equipment, estimated flow rates, and procedures for minimizing drilling fluid escape. 24. All drilling operations shall be performed by supervisors and personnel experienced in horizontal directional drilling. All required support, including drilling tool suppliers, survey systems, mud cleaning, mud disposal, and other required support systems used during this operation shall be provided by the Contractor. 25. A smoothly drilled pilot hole shall follow the design of the pipe profile and alignment described on the construction drawings. 26. The position of the drill string shall be monitored by the Contractor with the downhole survey instruments. Contractor shall compute the position in the X, Y, and Z axis relative to ground surface from downhole survey data a minimum of once per length of each drilling pipe (approximately 31 foot interval). Deviations from the acceptable tolerances described in the specifications shall be documented and immediately brought to the attention of the Engineer for discussion and/or approval. The profile and alignment defined on the construction drawings for the bore holes define the minimum depth and radius of curvature. The Contractor shall maintain and provide to the Engineer, upon request, the data generated by the downhole survey tools in a form suitable for independent calculation of the pilot hole profile. 27. Between the water's edge and the entry or exit point the Contractor shall provide and use a separate steering system employing a ground survey grid system, such as "TRU-TRACKER" or equal wherever possible. The exit point shall fall within a rectangle 10 wide and 40 feet long centered on the planned exit point. 28. During the entire operation, waste and leftover drilling fluids from the pits and cuttings shall be dewatered and disposed of in accordance with all permits and regulatory agencies requirements. Remaining water shall be cleaned by Contractor to meet permit requirements. 29. Technical criteria for bentonite shall be as given in API Spec. 13A, Specification for Oil Well Drilling Fluids Material for fresh water drilling fluids. Any modification to the basic drilling fluid involving additives must describe the type of material to be used and be included on Contractor's OCTOBER 2023 Project # 19.00124 333100 — Page 32 drilling plan presented to the Engineer. The Owner retains the right to sample and monitor the waste drilling mud, cuttings, and water. 30. The horizontal directional drilling operation is to be operated in a manner to eliminate the discharge of water, drilling mud and cuttings to the adjacent creek or land areas involved during the construction process. The Contractor shall provide equipment and procedures to maximize the recirculation or reuse of drilling mud to minimize waste. All excavated pits used in the drilling operation shall be lined by Contractor with heavy-duty plastic sheeting with sealed joints to prevent the migration of drilling fluids and/or ground water. 31. The Contractor shall visit the site and must be aware of all structures and site limitations at the directional drill crossing and provide the Engineer with a drilling plan outlining procedures to prevent drilling fluid from adversely affecting the surrounding area. 32. The general work areas on the entry and exit sides of the crossing shall be enclosed by a berm to contain unplanned spills or discharge. 33. Waste cuttings and drilling mud shall be processed through a solids control plant comprised as a minimum of sumps, pumps, tanks, desalter/desander, centrifuges, material handlers, and haulers all in a quantity sufficient to perform the cleaning/separating operation without interference with the drilling program. The cuttings and excess drilling fluids shall be dewatered by the Contractor to the extent necessary for disposal in offsite landfills. Water from the dewatering process shall be treated by the Contractor to meet permit requirements and disposed of legally. The cuttings and water for disposal are subject to being sampled and tested. The construction site and adjacent areas will be checked frequently for signs of unplanned leaks or seeps. 34. Equipment (graders, shovels, etc.) and materials (such as groundsheets, hay bales, booms, and absorbent pads) for cleanup and contingencies shall be provided in sufficient quantities by the Contractor and maintained at all sites for use in the event of inadvertent leaks, seeps, or spills. 35. Waste drilling mud and cuttings shall be dewatered, dried, and stock piled such that it can be loaded by a front end loader, transferred to a truck and hauled offsite to a suitable legal disposal site. The maximum allowed water content of these solids is 50 percent of weight. 36. Due to a limited storage space at the worksites, dewatering and disposal work shall be concurrent with drilling operations. Treatment of water shall satisfy regulatory agencies before it is discharged. OCTOBER 2023 Project # 19.00124 333100 — Page 33 3.5 MANHOLE INSTALLATION A. Sanitary sewer manholes shall be installed at each change in line or grade in each gravity sanitary sewer line as shown on the contract drawings. B. The manhole foundation shall be prepared so as to provide a firm, level area on which to place the precast concrete manhole base section. When poor foundation soil is encountered or excess groundwater exists, the foundation shall be excavated 12 inches or greater below the final subgrade elevation, as determined by the Engineer and backfilled with washed stone to provide a proper foundation. C. The manhole sections shall be lifted from the side of the excavation to the bottom of the trench with equipment and support slings capable of safely handling the heavy concrete pieces without damaging them. The manhole shall be set plumb and adjusted to the final finished surface grade with brick or grade rings and non -shrink grout. D. Thoroughly clean the bells and spigots of each manhole section to remove dirt and other foreign materials that may prevent sealing. Unroll the butyl sealant directly against the base of the spigot. Leave protective wrapper attached until sealant is entirely unrolled against spigot. Do not stretch. Overlap from side to side - not top to bottom. E. Pipe openings shall be exactly aligned to that of the pipe entering and leaving the manhole. The gravity sanitary sewer pipe lines shall be placed in the manhole openings, properly aligned, and set to grade. Sanitary sewer shall be connected to the manholes using flexible manhole sleeves as described above. F. For large diameter pipe where a flexible rubber sleeve is not available, the pipe line shall be sealed into the manhole using an expanding type or non -shrink type grout. G. For manhole steps, refer to the precast manhole section above H. After the manhole has been set in its final position, set the manhole frames to the required elevation using no more than 12 inches of precast concrete grade rings, or bricks sealing all joints between cone, adjusting rings, and manhole frame. When grade rings or bricks are used, grout with non -shrink grout. Where manholes are constructed in paved areas, the top surface of the frame and cover shall be tilted so as to conform to the exact slope, crown and grade of the existing surrounding pavement. Manhole frames which are placed above final grade will have frames attached to manhole cone section by means of 5/8- inch diameter stainless steel anchors and washers. One anchor bolt shall be provided per hole. Seal pipe penetrations, including pipe crown, to provide a smooth, uniform finish using non -shrink grout. OCTOBER 2023 Project # 19.00124 333100 — Page 34 After the placement of manhole frame and vacuum testing, perform the final finishing to the manhole interior by filling all chips or fractures greater than 1/2 inch in length, width or depth (1/8 inch deep in inverts) with non -shrink grout. Grout the interior joints between the precast concrete sections with non -shrink grout. Sharp edges or rough finishes shall be removed providing a smooth surface throughout the manhole. Clean the interior of the manhole, removing all dirt, spills, or other foreign matter. 3.6 CONNECTIONS TO EXISTING SEWER SYSTEMS A. Connections to existing collection systems will be allowed when proper precautions are taken to protect the existing collection system. B. If the proposed sewer does not begin at an existing manhole, a new manhole will be "cut in" at the required location and the existing pipe(s) repaired as specified. For extensions of the existing system, the new "cut in" manhole or the connection to the existing manhole will not be constructed until all other sewer construction has been completed and tested in compliance with these specifications. C. Pipelines or manholes which contain silt, sedimentation, or other foreign material shall not be connected to any portion of the existing collection system. The Contractor shall, at his own expense, flush, or otherwise cause the line (and manholes) to be cleaned out without any discharge into the existing system. D. Any connection with 18-inch and smaller pipe at an existing precast or cast -in place manhole will require the Contractor to core the necessary opening through the manhole wall and install a flexible manhole sleeve. Sleeve shall be as specified elsewhere. Connections to existing brick manholes do not require coring and an opening may be carefully hammered or sawed. Connections to existing manholes for pipe larger than 18 inches in diameter may be cored or sawed as approved by the Engineer. E. The existing manhole bench and invert shall be constructed and/or repaired in compliance with these specifications. 3.7 INSTALLING NEW SEWER SERVICE LINES A. For extensions of the existing sewer system, all buildable lots adjacent to the extension shall have a sewer service line provided. Additional service lines may be installed by the Contractor as directed and authorized by the Engineer. B. In general, service lines shall be constructed from the public sewer to a point located at the edge of the public right-of-way or the sewer easement. Service lines shall consist of a 4-inch or 6-inch diameter pipe, as listed in the Bid OCTOBER 2023 Project # 19.00124 333100 — Page 35 Schedule and/or shown on the Plans. Install a cleanout at the end of the service line at the public right-of-way. C. Service lines built for vacant lots/future connections shall have a cleanout assembly constructed, which includes a 1 foot capped stub -out on the service line. The vertical cleanout pipe shall also be capped, and shall be a minimum of 3 feet above the finished grade. D. The standard sewer service connection shall be 4 inches in diameter unless shown otherwise on the drawings, and shall connect to the main at a wye branch connection installed with the pipe line as it is being laid. Service lines 4 inches or less shall not be made into a manhole. Service connections 6 inches or greater shall only be made into an existing or proposed manhole, unless otherwise approved by the Engineer. E. The Owner -maintained portion of each sewer service line shall have a minimum of 3 feet of cover, unless approved by the Engineer. F. Sewer service lines and clean -outs shall be Class 350 DIP (with Class 350 appurtenances) if: 1. The service line installed will have less than 3 feet of cover; or 2. The service line crosses a creek or drainage ditch (whether aerial or subaqueous). G. The minimum slope on any residential sewer service line shall not be less than 2 percent. H. At the edge of the public or utility right-of-way, a "cleanout" shall be installed. The cleanout shall consist of a "wye" branch connection, 45-degree bend, riser pipe, and threaded plug installed flush with finished ground elevation. The end of the utility owner's sewer service connection shall terminate at the end of the pipe which will normally extend five feet beyond the "wye" branch for the cleanout. A watertight plug shall be installed at the end of this line until such time as the property owner connects their facilities to the sewer system. In addition, one cleanout shall be constructed for: 1. Every four 45-degree changes located in series (a long sweep is equivalent to two 45-degree bends); and 2. At intervals no greater than 100 feet. When the depth of cut is over 8 feet and the grade of a sanitary sewer is lower than necessary to serve abutting property, and at such other locations as may be designated by the Engineer, the Contractor may install the service line with a 22 '/2 or 45 degree bend just upstream of the cleanout assembly to bring the service line up to the necessary elevation. OCTOBER 2023 Project # 19.00124 333100 — Page 36 J. Unless required service depth is noted on construction Plans, the Contractor shall contact the Engineer and request confirmation of grade prior to constructing any sewer service line at a depth greater than 8 feet. 3.8 REINSTATING EXISTING SEWER SERVICE LINES A. Where existing sewer mains are being rehabilitated, sewer service lines shall be constructed for each property that is occupied by a business or dwelling if it is currently served by the system being rehabilitated. B. The Contractor shall be responsible to locate and connect all existing sewer service lines to the new main. In the event a service is missed during construction, the Contractor shall return to the site and perform all work necessary to reinstate the connection. The Contractor will be compensated in accordance with the original contract unit pricing; however, re -mobilization to the site will not be paid for. In addition, the Contractor shall be responsible for any costs associated with a sanitary sewer overflow and associated damage to public or private property through the omission of reinstating an active sewer service. C. Service lines 4 inches or less in diameter shall be tapped into the sewer main, not into a manhole. Service connections 6 inches or greater shall only be made into an existing or proposed manhole, unless otherwise approved by the Engineer. 3.9 ABANDONMENT OF EXISTING SEWERS AND MANHOLES A. Manholes which are to be abandoned shall first have both influent and effluent lines plugged inside the manhole with watertight masonry or concrete. The manhole will then be filled with non -compressible material (crushed stone or materials approved by the Engineer), to a point not less than 3 feet below the finish grade. The remainder of the manhole shall be broken down and removed. Then the excavation shall be backfilled to finish grade as specified in Division 31 Section "Earth Moving". B. Abandoned mains at active manholes shall be completely disconnected from the manhole by cutting the pipe outside the manhole and then plugging the abandoned main and the manhole wall with watertight masonry. The invert shall then be rebuilt to conform to these specifications. C. Exposed sections of abandoned mains shall be removed to a point not less than 5 feet from the adjacent banks or surface waters. The remaining ends of the pipe shall be plugged with watertight masonry. Concrete piers or collars in the creek channel shall be removed completely. Concrete piers or collars not located in the creek channel shall be removed to a point 3 feet below the finish grade. Steel piers shall be cut off 3 feet below finish grade. OCTOBER 2023 Project # 19.00124 333100 — Page 37 D. The minimum length of watertight masonry plugs will be the diameter of the abandoned pipe plus 1 foot. 3.10 FIELD QUALITY CONTROL A. The Contractor shall maintain the project, insofar as his construction work is concerned, in first class condition for such time as is necessary to satisfy the Engineer that all installations are correct and acceptable. B. Line Cleaning: Prior to inspection of any section(s) of gravity sanitary sewer pipe or force main the Contractor shall completely clean the lines of all debris, silt, etc. The pipe line shall be ready for use by the Owner and shall be proved to be in first class condition and constructed properly in accordance with the drawings and specifications. C. The Contractor shall notify the Engineer that all or portions of the work are ready for testing. All testing shall be scheduled with the Engineer, who will coordinate with the Owner, and respond to the Contractor regarding a mutually available date and time for the necessary testing. All testing shall be done in the presence of the Engineer. All labor, equipment, water and other materials, including meters and gauges, shall be furnished by the Contractor at his own expense. D. Inspection and Testing of Gravity Sewers: 1. Alignment and grade between manholes shall be tested by the Engineer by flashing a light between manholes. A full circle of light shall be seen when reviewed from the adjoining end of the line. All defects disclosed as a result of this test shall be corrected by the Contractor at his expense. 2. PVC pipe shall pass a go -no go mandrel sized to 95 percent of the pipe diameter (as defined in ASTM D-3034) with the pipe in place and properly backfilled. All pipe which will not pass the mandrel shall be relaid or replaced by the Contractor at no additional cost. The chart that follows indicates the required mandrel diameter for specific sizes of SDR 35 PVC piping. The allowable deflection (less than 5 percent) for other pipe sizes and types shall be calculated using the pipe stiffness formula in ASTM D 2321. The mandrel test shall not take place until the final backfill has been in place for a minimum of 30 days. Nominal Pipe Size Pipe I.D. (SDR 35 Required Mandrel O.D. 8" 7.665" 7.28" 10" 9.563" 9.08" 12" 11.361 " 10.79" 15" 13.898" 13.20" OCTOBER 2023 Project # 19.00124 333100 — Page 38 3. The mandrel shall be pulled through each section of pipe from manhole to manhole. The mandrel must slide freely through the pipe with only a nominal hand force applied. No mechanical device shall be used in pulling the mandrel. Any pipe which refuses the mandrel shall be removed and replaced. Such sections shall be re -tested for deflection 30 days after completion of trench backfill. 4. Mandrel testing may be performed by the Owner at any time prior to the expiration of the one year warranty. Any pipe which refuses the mandrel shall be replaced by the Contractor as described above at no cost to the Owner. 5. When the sewers are completed they shall be inspected by the Engineer for conformance with the provisions of the plans and specifications, particularly line and grade. All visible and audible leaks will be repaired. 6. The infiltration into each section of the sewer shall be measured in wet weather by the temporary installation of suitable V-notch weir. This weir shall be furnished, installed and removed by the Contractor. Infiltration test limits shall be applied to single reaches of pipe, up to one mile in length, of the same diameter. For pipes 8 inches through 15 inches in diameter, infiltration into the sewer system (including manholes) shall not exceed 50 gallons per mile of sewer per inch of inside diameter of the sewer per 24 hours, and in no case shall it exceed 3,000 gallons per mile per 24 hours. For all pipe sizes larger than 15 inches in diameter, infiltration into the sewer system (including manholes) shall not exceed 100 gallons per mile of sewer per inch of inside diameter of the sewer per 24 hours, and in no case shall it exceed 3,000 gallons per mile per 24 hours. 7. If infiltration into the whole system or any segment thereof exceeds the requirements described above, necessary corrective measures shall be taken by the Contractor to limit the infiltration to the maximum specified above. The Engineer shall decide the number and length of segments of sewer line on which the testing shall be performed. 8. The Contractor shall furnish all facilities and personnel and conduct low pressure air tests on all completed sections of gravity sewer. Air tests for PVC and DIP lines shall be performed in accordance with ASTM C828. Air tests for concrete pipe 30 inches in diameter and smaller shall be performed in accordance with ASTM C924. Air tests will not be required on pipe with diameters exceeding 30 inches. Acceptance of pipes exceeding 30 inches will be based on infiltration tests and/or visual inspection of the joints. 9. The acceptance air test shall be made after backfilling has been completed and compacted and in the presence of the Engineer. For OCTOBER 2023 Project # 19.00124 333100 — Page 39 ductile iron pipelines, test in accordance with the applicable requirements of ASTM C924. For PVC pipelines test in accordance with ASTM F1417- 98. 10. The Contractor shall furnish an air compressor of the necessary capacity along with all necessary plugs, valves, pressure gages, air hoses, connections, and other equipment necessary to conduct the air tests. Plugs in sewers 18 inches in size and larger shall be connected by steel cable for thrust reaction. 11. Compressor capacity shall be sufficient to pressurize the sewer main to 4 PSIG within a time equal to or less than the required test time. The following equation may be used to insure compliance with this requirement: C= 0.17 x D2 x L +Q T Where: C=Required Compressor Capacity (cfm) T=Required Test Time (min) D=Pipe Internal Diameter (feet) L=Length of Test Section (feet) Q=Allowable Air Loss Rate (cfm) The following allowable air loss rates will be used for all pipe tests: Pipe Size Q cfm Pipe Size Q(cfm) 4" 2.0 15" 4.0 6" 2.0 18" 5.0 8" 2.0 21 " 5.5 101, 2.5 24" 6.0 12" 3.0 12. The sewer section shall be plugged at both ends and air pressure shall be applied until the pressure inside the pipe reaches 4 PSIG. When a stable condition has been reached, the pressure shall be bled back to 3.5 PSIG. At 3.5 PSIG, the time and pressure shall be observed and recorded. If groundwater is present at the sewer, the height of the groundwater above the top of the pipe shall be added to the above air pressure readings (height of water in feet X 0.433 = air pressure in psig). A minimum of five (5) readings will be required for each test. 13. If the time for the air pressure to decrease from 3.5 PSIG to 2.5 PSIG is equal to or greater than that shown in the following table, the pipe shall be presumed to be free from defect. When these times are not attained, pipe breakage, joint leakage, or leaking plugs are indicated and the cause must be determined and corrected. After repairs have been made, the sewer OCTOBER 2023 Project # 19.00124 333100 — Page 40 sections shall be retested. This process shall be repeated until all sewer sections pass the air tests. Pipe Specification Time for Length Shown (Minutes : Seconds) Diameter (inches) 100ft 150ft 200ft 250ft 300ft 350ft 400ft 450ft 8 7:34 7:34 7:34 7:34 7:36 8:52 10:08 11:24 10 9:26 9:26 9:26 9:53 11:52 13:51 15:49 17:48 12 11:20 11:20 11:24 14:15 17:05 19:56 22:47 25:38 15 14:10 14:10 17:48 22:15 26:42 31:09 35:35 40.04 18 17:00 1913 25:38 32:03 38:27 44:52 51:16 57:41 21 19:50 26:10 34:54 43:37 52:21 61:00 69:48 78:31 24 22:47 34:11 45:34 56:58 1 68:22 79:46 91:10 102:33 14. For testing a sewer system with one or more installed service lateral pipes, an effective pipe length shall be added to the total sewer main pipe length. The equation used to calculate Effective Pipe Length is as follows: d2 x I Le= D2 Where: Le=Effective Pipe Length (added to Total Test Length) d=Diameter of Service Lateral Pipe 1=Length of Sewer Lateral D=Diameter of Sewer Main Pipe being tested 15. Failure of any section of the pipeline to meet the requirements of this test shall cause the Contractor to determine, at his own expense, the source(s) of leakage, and repair or replace all defective materials or workmanship. The repaired section(s) of line shall be re -tested to insure conformance with the requirements of these contract specifications. E. Inspection and Testing of Sewer Force Mains: 1. When the sanitary sewer force main is completed, the Engineer shall inspect the line for conformance with the provisions of the drawings and specifications, particularly with respect to alignment and depth. The minimum depth of all force mains shall be 36 inches unless otherwise specified. 2. All newly constructed sanitary sewer force main and valved sections shall be subjected to a hydrostatic pressure -leakage test. Hydrostatic testing shall be conducted only after thrust blocks, supports, and anchors have fully hardened. Force mains shall be tested in sections not to exceed OCTOBER 2023 Project # 19.00124 333100 — Page 41 4,000 lineal feet per test section. The Contractor shall install sufficient additional valves if not shown on the drawings to allow for testing. 3. HDPE pipe shall be hydrostatically tested after joining into continuous lengths prior to installation and again after installation. Pressure and temperature shall be monitored with certified instruments during the test. After this test, the water will be removed with pigs. Erosion prevention procedures shall be used during removal and discharge of the water. Hydrostatic testing shall be performed in accordance with these specifications. 4. Each completed section of the pipeline shall be plugged at both ends and slowly filled with water. As the main is being filled with water in preparation of the test, all air shall be expelled from the pipe. The main shall be subjected to a hydrostatic pressure not less than 1-1/2 times the maximum system operating pressure or 100 pounds per square inch, whichever is greater, for a period of two hours unless otherwise specified. Pressure shall be applied to the main by means of a hand pump for small lines or by use of a gasoline pump or fire engine for larger lines. 5. The rate of leakage shall be determined at 15 minute intervals by means of volumetric measure of the water added during the test until the rate has stabilized at the constant value for three consecutive 15 minute periods. 6. Leakage is defined as the quantity of water to be supplied into the newly laid pipe, or any valved section thereof, necessary to maintain the specified leakage test pressure after the pipe has been filled with water and the air expelled. No piping installation will be accepted until the leakage is less than ten (10) gallons per inch of pipe diameter per mile of pipe per 24 hours. 7. Cracked or defective pipe, joints, fittings, or valves discovered in consequence of this test shall be removed and replaced with sound materials, and the test shall be repeated until the test results are satisfactory. Precautions shall be taken to remove or otherwise protect equipment in, or attached to, pipe to prevent damage or injury thereto. 8. Tests of insulated and concealed piping shall be made before the piping is covered or concealed. No leakage will be allowed under the above tests for piping in buildings, structures or on bridges. 9. Ductile iron force main piping shall be tested in accordance with AMA C600, while all PVC force main piping shall be tested in accordance with AWWA M23. HDPE force main piping shall be tested in accordance with ASTM F2164. F. Inspection and Testing of Manholes: OCTOBER 2023 Project # 19.00124 333100 — Page 42 1. Manholes shall be constructed to provide a true circular inside diameter with properly corbeled tops, satisfactory inverts and properly placed steps and castings. Any visible leaks in the manholes shall be completely stopped to the satisfaction of the Engineer. 2. All sanitary sewer manholes constructed by the Contractor shall be vacuum tested for leakage in the presence of the Engineer. Vacuum testing shall be performed in accordance with ASTM C1244. The vacuum test requirement will not apply to any existing manhole, or any existing manhole that has been converted to a drop manhole by the Contractor. 3. The Contractor shall furnish all labor, equipment, and any appurtenant items necessary to satisfactorily perform the vacuum test. All testing equipment shall be approved for vacuum testing manholes. 4. Vacuum Testing Procedure: a. Vacuum test the assembled manhole after completing pipe connections, sealing and allowing mortar or cement proper curing time. Plug pipes with suitably sized and rated pneumatic or mechanical pipe line plugs. Place plugs a minimum of 6 inches beyond the manhole wall and brace to prevent displacement of the plugs or pipes during testing. b. All lifting holes shall be plugged with an approved non -shrink grout inside and out. Manhole joints shall be grouted from the outside only. All pipes entering the manhole shall be plugged. The Contractor shall securely brace the plugs in order to keep them from being drawn into the manhole. The test head shall be placed at the inside of the top of the cone section of the manhole and the seal inflated in accordance with the manufacturer's recommendations. C. Position the vacuum tester head assembly according to the manufacturer's recommendations. Draw a vacuum of 10 inches of mercury, close the valve on the vacuum line and shut off the vacuum pump and measure the time for the vacuum to drop to 9 inches of mercury. The manhole shall pass when the time to drop to 9 inches of mercury meets or exceeds the table below: Manhole Vacuum Testing Time Seconds Manhole Depth (Feet) Manhole Diameter Inches 48 60 72 0-8 20 26 33 10 25 33 41 12 30 39 49 14 35 46 57 16 40 52 67 18 45 59 73 OCTOBER 2023 Project # 19.00124 333100 — Page 43 20 50 65 81 22 55 72 89 24 59 78 97 26 64 85 105 28 69 91 113 30 74 98 121 d. If the manhole fails the test, remove the head assembly and coat the manhole interior with a soap and water solution and repeat the vacuum test for approximately 30 seconds. Leaking areas will have soapy bubbles. Make the necessary repairs and repeat the test until the manhole passes. 5. Vacuum testing is not required on manholes with pipe connections in excess of 30 inches in diameter. G. Final Acceptance: 1. The Engineer will notify the Contractor, in writing, as to the satisfactory completion of the work in any or all sections of gravity sanitary sewer pipe, force main and manholes, included in the project. 2. Upon such notification, the Contractor shall immediately remove all construction equipment, excess materials, tools, debris, etc. from the site(s) and leave the same in a neat, orderly condition acceptable to the Engineer. 3. Final landscaping requirements and restoration of surfaces shall then be completed by the Contractor in accordance with their respective specification sections and as shown on the drawings. END OF SECTION 332700 OCTOBER 2023 Project # 19.00124 333100 — Page 44 Sanitary Sewer Flowrate Calculation Source Classification Units GPD/unit1 GPD Septic Tank 1 Employees (per shift) 13 25 325 Houses (3-bedroom) 3 360 1080 Education Building (# of students) 251 10 250 Septic Tank 2 Public Restrooms (24-hour, per WC) 1 61 3251 1950 Total Flow to Treatment System 3605 Notes: 1. Gallons per day based upon 15A NCAC 02T .0114