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HomeMy WebLinkAboutWQCS00109_Renewal (Application)_20221221Wooten December 21, 2022 NCDEQ-DWR Water Quality Permitting Section MUNICIPAL PERMITTING UNIT 512 N. Salisbury Street Suite 925 Raleigh, NC 27604 Subject: System -Wide Collection System Permit Renewal Benson Collection System Permit No. WQCS00109 Johnston County, North Carolina TWC No.: 2293-CM Dear Reviewers: 120 N Boylan Avenue Raleigh, NC 27603 (919)823-0531 Enclosed is one (1) original and one (1) copy of the following documents for your review and approval regarding the renewal of the above referenced permit: • System -Wide Wastewater Collection System (FORM: CSA 04-16) Application • Section IV.3 Pump Station List • Section IVA High Priority Lines List • Section V.1 Organizational Chart • Section V.2 Operators (continued) • Section VA Annual Budget for Collection System (Updated and Approved) • Section V.5 Capital Improvement Budget • Section V.6 Capital Improvement Plan (Updated and Approved) • Section VIA Contingency Plan • Section VI.6 Comprehensive Collection System Map Please review the submittal package and if you have questions or require additional information, please do not hesitate to contact me at (919)-828-0531 or dmalinauskas(a)thewootencompany.com. Sincerely, THE WOOTEN COMPANY J� David G. Malinauskas, P.E. cc: Kimberly Pickett, Town of Benson (letter only) TWC Reading File (letter only) TheWootenCompany.com DESIGNING THE FUTURE State of North Carolina DWR Division of Water Resources Department of Environmental Quality Division of Water Resources 15A NCAC 02T .0400 — SYSTEM -WIDE WASTEWATER COLLECTION SYSTEMS INSTRUCTIONS FOR FORM CSA 04-16 & SUPPORTING DOCUMENTATION Documents shall be prepared in accordance with 15A NCAC 02T .0100, 15A NCAC 02T .0400, and all relevant Division Policies. Failure to submit all required items will necessitate additional processing and review time. For more information, visit the System -wide Collection System Permitting website: General — When submitting an application to the Municipal Permitting Unit, please use the following instructions as a checklist in order to ensure all required items are submitted. Adherence to these instructions and checking the provided boxes will help produce a quicker review time and reduce the amount of requested additional information. The Applicant shall submit one original and one copy of the application and supporting documentation. The copy may be submitted in digital format. A. Cover Letter ® Submit a cover letter listing all items and attachments included in the permit application package B. No Application Fee Required ➢ No application fee is necessary. The permittee will be billed an annual fee upon issuance of the permit ➢ The appropriate annual fee for systemwide wastewater collection system permits may be found at: ➢ Annual Non -Discharge Fees C. System -Wide Wastewater Collection System (FORM: CSA 04-16) Application: ® Submit the completed and appropriately executed System -wide Wastewater Collection System (FORM: CSA 04- 16) application. Any unauthorized content changes to this form shall result in the application package being returned. If necessary for clarity or due to space restrictions, attachments to the application may be made, as long as the attachments are numbered to correspond to the section and item to which they refer. ❑ If the Applicant Type in Section I.3 is a Privately -Owned Public Utility, provide the Certificate of Public Convenience and Necessity (CPCN) from the North Carolina Utilities Commission demonstrating the Applicant is authorized to hold the utility franchise for the area to be served by the wastewater collection system, or ❑ Provide a letter from the North Carolina Utilities Commission's Water and Sewer Division Public Staff stating an application for a franchise has been received and that the service area is contiguous to an existing franchised area or that franchise approval is expected. ❑ If the Applicant Type in Section I.3 is a corporation or company, provide documentation if it is registered for business with the North Carolina Secretary of State. D. General Information: ➢ The Authorized signing official listed in Section I.4 should match with that of the Applicant certification page in accordance with 15A NCAC 02T .0106(b). Per 15A NCAC 02T .0106(c), an alternate person maybe designated as the signing official if a delegation letter is provided from a person who meets the criteria in 15A NCAC 02T .0106(b). ➢ NOTE - Public Works Directors are not authorized to sign this permit application, according to the rule, unless they are formally delegated. INSTRUCTIONS FOR APPLICATION CSA 04-16 & SUPPORTING DOCUMENTATION Page 1 of 5 E. Summary of Attachments Required: ® Instruction A: Cover Letter ® Instruction C: Application ❑ Instruction C: Ownership Documentation (i.e. CPCN) (If necessary) ❑ Instruction D: Delegation Letter (If necessary for signing official) ® Section IV.3 Pump Station List ® Section IVA High Priority Lines List ® Section VA Annual Budget for Collection System (Updated and Approved) ® Section V.6 Capital Improvement Plan (Updated and Approved) ❑ Section VI.2 Response Action Plan ® Section VIA Contingency Plan ® Section VI.6 Comprehensive Collection System Map ❑ Section VII Note Any Potential Compliance Issues THE COMPLETED APPLICATION PACKAGE, INCLDING ALL SUPPORTING INFORMATION AND MATERIALS, SHOULD BE SENT TO: NCDEQ-DWR Water Quality Permitting Section MUNICIPAL PERMITTING UNIT By U.S. Postal Service: By Courier/Special Delivery: 1617 MAIL SERVICE CENTER 512 N. SALISBURY ST. Suite 925 RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604 TELEPHONE NUMBER: (919) 707-3601 TELEPHONE NUMBER: (919) 707-3601 INSTRUCTIONS FOR APPLICATION CSA 04-16 & SUPPORTING DOCUMENTATION Page 2 of 5 I. APPLICANT INFORMATION: 1. Applicant's name (Municipality, Public Utility, etc): Town of Benson 2. Facility Information: Name: Town of Benson Collection System Permit No.: WQCS00109 3. Applicant type: ® Municipal ❑ State ❑ Privately -Owned Public Utility ❑ County ❑ Other: 4. Signature authority's name: Kimberly Pickett per 15A NCAC 02T .0106(b) Title: Town Manager 5. Applicant's mailing address: P.O. Box 69 City: Benson State: NC Zip: 27504-0069 6. Applicant's contact information: Phone number: (919) 894-3553 Fax number: (919) 894-1283 Email address: kpickett(a)townofbenson.com II. CONTACT/CONSULTANT INFORMATION: 1. Contact Name: Dave Malinauskas 2. Title/Affiliation: Water Resources Practice Manager/The Wooten Company 3. Contact's mailing address: 120 N Boylan Ave. 4. City: Raleigh State: NC Zip: 27603-1423 5. Contact's information: Phone number: (919) 828-0531 Fax number: (919) 834-3589 Email address: dmalinauskas(a)thewootencompany.com III. GENERAL REQUIREMENTS: 1. New Permit or Permit Renewal? ❑ New ® Renewal 2. County System is located in: Johnston County 3. Owner & Name of Wastewater Treatment Facility(ies) receiving wastewater from this collection system: Owner(s) & Name(s): Town of Benson, Benson Wastewater Treatment Facility 4. WWTF Permit Number(s): NCO020389 5. What is the wastewater type? 80 % Domestic or 20 % Industrial (See 15A NCAC 02T .0103(20)) II y Is there a Pretreatment Program in effect? ® Yes or ❑ No 6. Wastewater flow: 1.322 MGD (Current average flow of wastewater generated by collection system) 7. Combined permitted flow of all treatment plants: NCO020389 (Monthly Average Effluent Limit): 1.9 MGD 8. Explain how the wastewater flow was determined: ❑ 15A NCAC 02T .0114 or ® Representative Data 9. Population served by the collection system: 4,150 IV. COLLECTION SYSTEM INFORMATION: 1. Line Lengths for Collection System: Sewer Line Description Length Gravity Sewer 37 (miles) Force Main 6 (miles) Vacuum Sewer 0 (miles) Pressure Sewer 0 (miles) APPLICATION CSA 04-16 Page 3 of 5 2. Pump Stations for Collection System: Pump Station Type Number Simplex Pump Stations (Serving Single Building) 0 Simplex Pump Stations (Serving Multiple Buildings) 0 Duplex Pump Stations 11 3. Submit a list of all major (i.e. not simplex pump station serving a single family home) pump stations. Include the following information: ➢ Pump Station Name ➢ Physical Location ➢ Alarm Type (i.e. audible, visual, telemetry, SCADA) ➢ Pump Reliability (Can convey peak hourly wastewater flow with largest single pump out of service) ➢ Reliability Source (permanent/portable generator, portable pumps) ➢ Capacity of Station (Pump Station Capacity in GPM) 4. Submit a list of all high priority lines according per 15A NCAC 02T .0402(2) known to exist in the collection system. Head the list with "Attachment A for Condition V(4)" and include the system name. ➢ Use the same line identification regularly used by the applicant ➢ Indicate type of high priority line (i.e. aerial), material and general location V. COLLECTION SYSTEM ADMINISTRATION: 1. Provide a brief description of the organizational structure that is responsible for management, operation and maintenance of the collection system. The Distribution/Collection Systems Manager is supervised by the Public Utilities Director; the Town Manager oversees the Public Utilities Director. However, since the Town of Benson does not currently have a Public Utilities Director in place the Distribution/Collection Systems Manager reports to the Town Manager directly. See the attached Organizational Chart for more information. 2. Indicate the current designated collection system operators for the collection system per 15A NCAC 08G.0201 Main ORC Name: AnthonyC Ellis Certification Number: 1008926 Back -Up ORC Name: D Ra Adams Certification Number: 1000968 See the "WOCS Contacts and ORC Report" for a current listing of the ORC(s) the Division has on file for WQCS permit 3. Approximate annual budget for collection system only: $ 1,089,761 4. Submit a copy of your current annual budget. 5. Approximate capital improvement budget for the collection system only: $ 9,332,950 (covers full CI Plan) 6. Submit a copy of your current capital improvement plan. 7. Is this collection system currently a satellite system ❑ Yes or ® No 8. Do any satellite systems discharge to this collection system ® Yes or ❑ No (If yes complete table below) Satellite System Contact Information (Name, Address, Phone Number) Johnston County (Red Oak) Chandra Farmer, PE, PO Box 2263 Smithfield, NC 27577, 919-989-5075 Complete for Satellite Systems that have a flow or capacity greater than 200,000 GPD (Average daily flow) 9. List any agreements or ordinances currently in place to address flows from satellite systems: Johnston County Interconnection with Benson in Red Oak. Contract amount is for 0.192 MGD APPLICATION CSA 04-16 Page 4 of 5 VI. COLLECTION SYSTEM COMPLIANCE: 1. Is a Response Action Plan currently in place ❑ Yes or ® No 2. If Yes, submit a copy of the Response Action Plan or see table 6 below. 3. Is a pump station contingency plan currently in place? ® Yes or ❑ No 4. If Yes, submit a copy of the pump station contingency plan or see table 6 below. 5. Is a comprehensive collection system map currently in place? ® Yes or ❑ No 6. Submit a submit a copy of the collection system map (CD or hardcopy) or indicate a schedule for completion 7. Thoroughly read and review the System -Wide Collection System Permit Conditions. Typically compliance schedules are only offered to NEW permit applicants and NOT permit renewals. Any compliance dates must be included within the permit prior to issuance or the permit holder will be found in violation upon inspection. Current If no, Indicate a Typical Permit Condition Compliance? Compliance Compliance Date Schedule I(4) — Grease ordinance with legal authority to inspect/enforce ® Yes ❑ No 12 — 18 mo. 1(5) — Grease inspection and enforcement program ® Yes ❑ No 12 — 18 mo. I(6) — Three to five year current Capital Improvement Plan. ® Yes ❑ No 12 — 18 mo. I(8) — Pump station contingency plan ® Yes ❑ No 3 mo. I(9) — Pump station identification signs. ® Yes ❑ No 3 mo. I(11) — Functional and conspicuous audible and visual alarms. ® Yes ❑ No 3 — 6 mo. II(5) — Spare pumps for any station where one pump cannot handle peak flows alone (in a duplex station, the 2°1 pump is ® Yes ❑ No 6 — 9 mo. the spare if pump reliability is met). H(7) — Accessible right-of-ways and easements. ® Yes ❑ No 6 — 12 mo. H(9) — Response action plan with Items 9 (a — h). ❑ Yes ® No N/A (all in 3 mo. compliance) III(3) — Comprehensive collection system map ® Yes ❑ No 10% per year For conditions not listed, compliance dates are not typically offered. List any permit conditions that may be difficult for the applicant to meet (attach clarification if needed): VII. APPLICANT'S CERTIFICATION per 15A NCAC 02T .0106(b): I, Kimberly Pickett, Town Manager attest that this application for the Town of Benson (Signature Authority's Name & Title from Item I.4) (Facility name from Item I.1) has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that if all required parts of this application 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. Note: In accordance with NC General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement, representation, or certification in any application shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed $10,000 as well as civil penalties $251000 per violation. i �; Signatur i1L�',U 1 Date: APPLICATION CSA 04-16 Page 5 of 5 Section IV.3 Pump Station List Section IV.3 1. I-40 Rest Area (#1) a. Physical Location: b. Alarm Type: c. Pump Reliability: d. Reliability Source: e. Capacity of Station: 2. Carolyn Drive (#2) a. Physical Location: b. Alarm Type: c. Pump Reliability: d. Reliability Source: e. Capacity of Station: 3. West Ridge (#3) a. Physical Location: b. Alarm Type: c. Pump Reliability: d. Reliability Source: e. Capacity of Station: 4. Wall Street (#4) a. Physical Location: b. Alarm Type: c. Pump Reliability: d. Reliability Source: e. Capacity of Station: 5. King Circle (#5) a. Physical Location: b. Alarm Type: c. Pump Reliability: d. Reliability Source: e. Capacity of Station: 6. Chicopee (#6) a. Physical Location: b. Alarm Type: c. Pump Reliability: d. Reliability Source: e. Capacity of Station: Federal Road Ext (2139347.627UsFtE, 611372.430UsFtN) SCADA, audible, visual Yes Stand-by generator 200 GPM Carolyn Dr (2138547.928UsFtE, 598260.788UsFtN) SCADA, audible, visual Yes Stand-by generator 500 GPM Pope St (2130162.358UsFtE, 596506.558UsFtN) SCADA, audible, visual Yes Bypass/portable pump 150 GPM Wall St (213342.970UsFtE 592747.276UsFtN) SCADA, audible, visual Yes Bypass/portable pump 175 GPM King Cir (2131655.893UsFtE 589246.089UsFtN) SCADA, audible, visual Yes Pump Truck 50 GPM Market St Ext (2133925.405UsFtE 589378.136UsFtN) SCADA, audible, visual Yes Stand-by generator 200 GPM Page 1 of 2 Section IV.3 7. South Walton (#7) a. Physical Location: b. Alarm Type: c. Pump Reliability: d. Reliability Source: e. Capacity of Station: 8. Lake Shore (#8) a. Physical Location: b. Alarm Type: c. Pump Reliability: d. Reliability Source: e. Capacity of Station: 9. Boardwalk (#9) a. Physical Location: b. Alarm Type: c. Pump Reliability: d. Reliability Source: e. Capacity of Station: 10. Burris (#10) a. Physical Location: b. Alarm Type: c. Pump Reliability: d. Reliability Source: e. Capacity of Station: 11. Willa Chase (#11) a. Physical Location: b. Alarm Type: c. Pump Reliability: d. Reliability Source: e. Capacity of Station: NC 242 (2136774.831UsFtE 591223.294UsFtN) SCADA, audible, visual Yes Stand-by generator 320 GPM Lake Shore Dr (2133404.505UsFtE 599079.129UsFtN) SCADA, audible, visual Yes Pump Truck 50 GPM Atlantic Ave (2133079.388UsFtE 599582.051UsFtN) SCADA, audible, visual Yes Pump Truck 125 GPM Gilbert Rd (2144265.054UsFtE 605218.863UsFtN) SCADA, audible, visual Yes Stand-by generator 80 GPM Willa Chase Rd (2145521.445UsFtE 602359.324UsFtN) SCADA, audible, visual Yes Stand-by generator 80 GPM Page 2 of 2 Section I riority nes List Attachment A for Condition V(4) — Benson Collection System 1. Outfall Line at I-40 to WWTP across Hannah Creek a. Type: Aerial b. Material: Ductile iron c. General location: Outfall at WWTP 2. NC Hwy 50 (East Main Street) to Fayetteville Street at Taco Bell a. Type: Aerial b. Material: Ductile iron c. General location: Adjacent to I95 3. Carolyn Drive Lift Station Aerial Line a. Type: Aerial b. Material: Ductile iron c. General location: End of N. Johnson St 4. Honeycutt easement at I95 a. Type: Aerial b. Material: Ductile iron c. General location: Crossing the creek 5. John Deere Aerial Line to I-40 Federal Road Lift Station a. Type: Aerial b. Material: Ductile iron c. General location: Federal Road to John Deere plant 6. Martin Street Aerial line across Driving Branch a. Type: Aerial b. Material: Ductile iron c. General location: Crossing Creek 7. Lakeshore Drive Phase II of Johnson Place Subdivision a. Type: Incorrect grade b. Material: PVC c. General location: Lakeshore Phase II 8. Aerial line just north of the I-40 Pump station that crosses Stony Fork Creek a. Type: Aerial b. Material: Ductile iron c. General location: Crossing Creek 9. Aerial line at Driving Branch at N Johnson St a. Type: Aerial b. Material: Ductile iron c. General location: Crossing Creek Section V.1 Organizational Chart Town of Benson Organizational Chart 2022-2023 Section V.2 Operators (continued) Section V.2 Main ORC Name: Anthony C Ellis Certification Number: 1008926 Back -Up ORC Name: D Ra Adams Certification Number: 1000968 Back -Up ORC Name: Jeremy Alan B ant Certification Number: 1003457 Section V.4 Annual Budget Page 21 of 28 Page 22 of 28 Section V.5 Capital Improvement Budget Section V.5 The Wooten Company, in partnership with the Town of Benson, produced a four -phase Asset Management Plan —a systemwide survey including manhole assessment, plus smoke testing, CCTV inspection, and Asset Management Plan creation. This included a Capital Improvement Plan with a 10- year time horizon. The budgetary number shown in the application reflects the full amount of the improvements proposed in the CIP, with cost opinions priced as of 2018. WASTEWATER COLLECTION SYSTEM CAPITAL IMPROVEMENTS PLAN DECEMBER 2018 TOWN OF BENSON NORTH CAROLINA TV THE WOOTEN COMPANY LICENSE NO. F-0115 TWC 2293-CI CAPITAL IMPROVEMENTS PLAN WASTEWATER COLLECTION SYSTEM BENSON, NORTH CAROLINA CERTIFICATION PAGE 17-x"u 1:3 D1 litIjUll Q ° W. BRI,i*N 36HNSON, PE PROJECT MANAGER GALAN, E.I. ASSISTANT TO PROJECT ENGINEER THE WOOTEN COMPANY 120 N. BOYLAN AVENUE RALEIGH, NC 27603 TEL: (919) 828-0531 FAx: (919) 834-3589 EMAIL: BJOHNSON R THEWOOTENCOMPANY.COM LICENSE No. F-0115 TABLE OF CONTENTS 1. Goal Statement....................................................................................................................................I 2. Description of Project Area................................................................................................................2 2.1 Demographics.................................................................................................................................. 2 2.2 Land Area Configurations................................................................................................................ 3 2.2.1 Topography and Hydrography................................................................................................ 3 2.2.2 Soils.........................................................................................................................................3 3. Description of Existing Wastewater Collection System...................................................................4 3.1 General Status........................................................... 3.1.1 Wastewater Treatment Plant ............................ 3.1.2 Wastewater Pumping Stations .......................... 3.1.3 Gravity Sewer Collection System .................... 3.1.4 User Charges .................................................... 3.2 Present Condition...................................................... 4. Projects Identified in Asset Management Plan ......... U .................................................................. 4 .................................................................. 5 .................................................................. 5 .................................................................. 6 .................................................................. 7 .................................................................. 8 4.1 System Needs................................................................................................................................... 8 4.2 Manhole Rehabilitation.................................................................................................................... 8 4.3 Wastewater Pump Station Repairs.................................................................................................11 4.4 Sewer Line Replacement and Rehabilitation.................................................................................13 4.4.1 Smoke Testing and CCTV Inspection...................................................................................13 4.4.2 Hydraulic Modeling..............................................................................................................13 4.4.3 Find and Fix Repairs............................................................................................................. 14 4.5 Decommissioning Boardwalk and Lake Shore Pump Stations......................................................18 4.6 Wastewater Collection System Long Range Master Plan..............................................................20 5. CIP Project Priority Ranking & 10-Year Schedule.......................................................................21 5.1 Prioritization of Collection System Needs.....................................................................................21 5.2 Scheduling of Collection System Needs........................................................................................ 23 6. Funding Programs............................................................................................................................ 25 Town of Benson Wastewater Collection System i V Capital Improvements Plan December 2018 THE WODTEh COMPANY INDEX OF TABLES Table 2.1— Population Data for Town of Benson & Johnston County..................................................2 Table 3.1— List of Wastewater Pumping Stations................................................................................... 5 Table 3.2 — Gravity Sewer System Pipe Lengths by Diameter...............................................................6 Table3.3 — Existing Sewer Customers......................................................................................................7 Table3.4 — Sewer Rate Structure..............................................................................................................7 Table 4.1 — Cost Estimate Manhole Rehabilitation................................................................................10 Table 4.2 — Cost Estimate Pump Station Improvements.......................................................................12 Table 4.3 — CCTV and Smoke Test Opinion of Probable Cost — Rehabilitation and Replacement..15 Table 4.4 — Hydraulic Modeling Opinion of Probable Cost — Replacement........................................16 Table 4.5 — N. Lincoln St. and W. Martin St. Sewer Improvements....................................................17 Table 4.6 — Cost Estimate Phase 4 Improvements.................................................................................19 Table 5.1 — Two Tiered Ranking System................................................................................................ 21 Table 5.2 — Capital Improvements Plan Ranking..................................................................................22 Table 5.3 — Wastewater Collection System Capital Improvements Schedule (FY2019/20-FY2028/29) .................................................................................................................................................................... 24 INDEX OF APPENDICES APPENDIX A — OPINIONS OF PROBABLE PROJECT COST Town of Benson Wastewater Collection System ii V Capital Improvements Plan December 2018 THE WODTEh COMPANY 1. GOAL STATEMENT This Capital Improvements Plan is a planning tool for the Town of Benson to use for future wastewater collection systems improvements. It serves to identify collection system improvement projects which, upon completion, can be expected to reduce the quantity of unmetered wastewater treated at the Town's wastewater treatment plant (WWTP) and can potentially lower the billing rates charged to the wastewater customers in the Town. In addition, the information provided should be a benchmark reference document by which the Town can measure progress. It will be used to help support future grant and loan applications as the Town begins to implement the individual projects described herein. Finally, the Capital Improvements Plan represents a vision of the Town's future and will guide local leaders and volunteers in appropriate, planned growth to better serve the needs of its citizens. It should be noted that this document is for the Town's wastewater collection system only. There are no projects related to the Town's WWTP in this CIP. The Town is advised to consider completing similar documents to those submitted herein for the WWTP, as the capacity of the plant should be expanded and as the infrastructure at the WWTP continues to age, malfunction, and need to be replaced. Town of Benson Wastewater Collection System 1 Capital Improvements Plan December 2018 THE WOOTEN COMPANY 2. DESCRIPTION OF PROJECT AREA 2.1 DEMOGRAPHICS Population data for Benson and Johnston County are tabulated below. Historical census data from 1910 to 2010 for Johnston County and the Town of Benson were obtained from the N.C. Office of State Budget and Management and the U.S. Census Bureau. The Office of State Budget and Management makes projections for future county population growth using U.S. Census Bureau data. The Town of Benson has experienced a steady population increase in the last 40 years, accompanying the growth shown by Johnston County (due to its proximity to the Raleigh -Durham area). In fact, the Town's population shows an increase of over 15% from 2000 to 2014, mirroring (but not matching) the county's growth of over 46%. As shown, Benson has grown at an average rate of about 39 people per year over the decade ending in 2010. The average rates of growth are projected to be 88 people per year during the decade ending in 2020. Rates are projected to increase even more in the 2020's to around 110 per year. These projections are by NC Demographer which projects increased growth for Johnson County. The table below projects Benson remaining the same percentage of that county. Table 2.1— Population Data for Town of Benson & Johnston County Year Benson Johnston Co. 1910 800 41,401 1920 1,123 48,998 1930 1,522 57,621 1940 1,837 63,798 1950 2,102 65,906 1960 2,355 62,936 1970 2,267 61,737 1980 2,792 70,599 1990 2,810 81,306 2000 2,923 121,965 2010 3,311 169,660 2020 4,200 210,948 2025 4,800 238,082 2030 5,300 265,216 2035 5,850 292,390 Town of Benson Wastewater Collection System 2 Capital Improvements Plan December 2018 THE WOOTEN COMPANY 2.2 LAND AREA CONFIGURATIONS 2.2.1 TOPOGRAPHY AND HYDROGRAPHY The topography of the project area is generally flat to gently rolling with elevations ranging from around 200 to 300 feet above sea level. The USGS Quad maps show the blue line streams that exist within the Town. The Town is located just north of the drainage divide between the Cape Fear river basin and the Neuse river basin. Streams and creeks drain in the Town drain generally to the east and north into Hannah Creek then into the Neuse River. The USGS Topographical map can be found in Appendix A of the AMP. 2.2.2 SOILS The soils that exist within the Town include Bibb sandy loam (Bb), Blanton sand (BnA), Cowarts loamy sand (CoB & CoC), Faceville loamy sand (FaA & FaB), Fuquay San (FuA), Gilead sandy loam (GeB & Gel)), Goldsboro sandy loam (GoA), Lynchburg sandy loam (Ly), Malboro sandy loam (MaA & MaB), Norfolk loamy sand (NoA & NoB), Norfolk Urban land complex (NuA), Rains sandy loam (Ra), Rains Urban land complex (RbA), Uchee loamy coarse sand (UcC), Udorthents (Ud), Varina loamy sand (VrA & VrB), and Wagram loamy sand (WaB). The two most predominant soils are the Norfolk Urban land complex (NuA) and the Rains Urban land complex (RbA). The description of these soils is as follows: -Norfolk Urban land complex (NuA) is a very deep and well -drained soil. The soil is well suited to parks, open spaces, building sites, lawns and gardens. If the soil is not protected, erosion is a moderate hazard. These soils generally have high water tables of 4 to 6 feet that occurs in January and February. -Rains Urban land complex (RbA) is a poorly drained soil. The soil is suited for shopping centers, houses, municipal buildings, parking lots, roads, and other impervious surfaces. These soils are noted for their wetness and have water tables 0-1 foot in depth occurring in November through April. The wetness and high water tables contribute to the I&I that are present in the Wastewater Collection system. The NRCS Soils map can be found in Appendix A of the AMP. Town of Benson Wastewater Collection System 3 Capital Improvements Plan December 2018 THE WOOTEN COMPANY 3. DESCRIPTION OF EXISTING WASTEWATER COLLECTION SYSTEM 3.1 GENERAL STATUS The Town of Benson owns and operates its wastewater collection system, receiving wastewater from approximately 1,506 in -town sewer customers and 37 out-of-town customers. The customer breakdown is as follows: approximately 1,296 residential customers, 242 commercial customers, 7 industrial customers, and 12 institutional customers. The gravity sewer piping consists of 6 inch through 24 inch diameter pipe totaling 34.97 miles in length. The sewer pipe is laid at a downward grade to allow for flow of sewage. When piping gets uneconomically deep or cannot serve an area due to natural topography, a sewage pump station is installed to pump the sewer to a higher elevation to be served by the gravity sewer. The collection system currently contains 11 wastewater pumping stations. Both the Gravity Collection sewer system and Wastewater Pumping stations are permitted as the wastewater collection system by the NC Department of Environmental Quality. The permit number is WQS00109 and is effective until June 30, 2023. The Town has pursued rehabilitation of a portion of its existing sewer system to remedy its sewer infiltration and inflow (I&1) problems. This rehabilitation occurred primarily in the late 1990's and early 2000's and consisted of cured -in -place sewer lining and manhole lining and replacement. Additionally the main outfall lines extending from N. Honeycutt Street to the Wastewater Treatment were rehabilitated and manholes were raised above the flood elevations. Rehab of the existing sewer and manholes did reduce the Town's I&I problems; however, the Town is still experiencing issues with continued aging of sewer infrastructure. These problems are detailed in the sewer system evaluation portion of the AMP. 3.1.1 WASTEWATER TREATMENT PLANT The Town of Benson owns and operates a 1.9 MGD extended aeration type wastewater treatment plant (WWTP). The treatment facilities consists of flow equalization lagoons, an arc bar screen, a flow meter, grit removal, an influent screw pumping station, three (3) aeration and oxidation ditches, five (5) clarifiers, chemical (alum) addition for phosphorus removal, a filter lift and return sludge pump station, tertiary filters, chlorination, dechlorination, post aeration, lime storage and feed, an effluent flow measurement with composite sampler, an aerated sludge lagoon, a lagoon effluent pump station, and a backup generator. Sludge is discharged into a concrete aerated sludge holding basin for stabilization and storage, prior to land application. Treated effluent is discharged to Hannah Creek, a tributary to the Neuse Town of Benson Wastewater Collection System 4 Capital Improvements Plan December 2018 THE WOOTEN COMPANY River. When needed, some treated wastewater is routed to the reuse system where it is used for irrigation at the South Johnston County High School and on the treatment plant site. The Town's average wastewater flow from January 2016 to December 2017 was 0.95.MGD. The Town of Benson Wastewater Treatment Facility operates under NPDES Permit No. NC 0020389, reissued and expired April 30, 2018. The Town currently has an application on file with the Division of Water Resources for the permit renewal. No improvements projects to the WWTP are currently proposed; however, the Town should pursue improvements to the WWTP in the future to address aging equipment and components. The Town may also benefit from evaluating its future needs to ensure that the WWTP has adequate capacity for expected future growth. 3.1.2 WASTEWATER PUMPING STATIONS The Town of Benson currently has eleven (11) pumping stations as listed below: Table 3.1— List of Wastewater Pumping Stations Number Name Year Built/(Upgraded) Permitted Capacity (GPM) Condition 1 I-40 Rest Area 1997 200 Good 2 Carolyn Drive 2018 500 Excellent 3 West Ridge 1978 150 Fair 4 Wall Street (1993) 175 Poor 5 King Circle 1973 50 Fair 6 Chicopee 1968/(2001) 200 Good 7 South Walton Ave. 2018 320 Excellent 8 Lake Shore 2000 50 Good 9 Boardwalk 1999 125 Good 10 Burris 1996 80 Good 11 Willa Chase 2006 80 Good 3.1.3 GRAVITY SEWER COLLECTION SYSTEM The gravity sewer system consists of approximately 34.97 miles of gravity sewer ranging from 6 inches to 24 inches in diameter. Table 3.2 shows the length of pipes of each diameter: Town of Benson Wastewater Collection System 5 Capital Improvements Plan December 2018 THE WOOTEN COMPANY Table 3.2 — Gravity Sewer System Pipe Lengths by Diameter Diameter (in.) Length (LF) 24 530 18 4,864 16 2,469 15 18,457 12 1,311 10 14,487 8 134,655 6 7,863 The first section of sewer system, which was constructed in the 1930's, served the central and northwest section of Town, north of the railroad tracks. The sewers serving the section south of the railroad were constructed in the 1940's. These sewers were constructed with clay pipe and masonry manholes constructed mainly with brick. The majority of the sewer was constructed with 2 to 4 foot long segments of vitrified clay pipe and Oakum type joints. These types of joints tend to decay away over a period of years making the sewers susceptible to infiltration during high groundwater conditions. The newer areas of the sewer system have been constructed with precast concrete manholes and primarily with PVC plastic pipe. The integrity of the newer portion of the Town's system is far superior to that of the older, although both portions of the Town's system need ongoing inspection and maintenance as they age. In the past, the Town has pursued rehabilitation of a portion of its existing sewer system to remedy its sewer I&I problems. It is estimated that approximately 45,000 LF of the Town's gravity lines (which represents around 24% of the gravity lines) have been rehabilitated. This rehabilitation occurred primarily in the late 1990's and early 2000's and consisted of cured -in -place and fold and form sewer lining; manhole lining and replacement; point repair; and pipeline replacement. Additionally the main outfall lines extending from N. Honeycutt Street to the Wastewater Treatment were rehabilitated, with manholes on this outfall raised above the flood elevations. Rehab of the existing sewer and manholes helped to reduce the Town's I&I problems; however, the Town is still experiencing issues with continued aging of its infrastructure. 3.1.4 USER CHARGES The Town of Benson charges its user a Base Charge and a variable charge per 1,000 gallons of use. Customers are all charged the same rate regardless of whether they are residential, commercial, industrial, Town of Benson Wastewater Collection System 6 Capital Improvements Plan December 2018 THE WOOTEN COMPANY or institutional customers. The only variance in customer rates is due to the fact that those customers located inside town limits are charged less than those outside the town limits. Table 3.3 shows the number of each type of customers, while Table 3.4 compares the in -town rates to the out-of-town rates: Table 3.3 — Existing Sewer Customers Customer Type Metered Connections Residential 1,296 Commercial 242 Industrial 7 Institutional 12 Total 1,557 Table 3.4 - Sewer Rate Structure Connection Location Fixed Rate Variable Charge In -Town $13.00 $5.29/1,000 GAL Out of Town $15.00 $8.96/1,000 GAL 3.2 PRESENT CONDITION The Town has undertaken a long range planning program to evaluate their sewer system. The project consisted of mapping the system, visually inspecting the manholes, smoke testing the gravity collection system, inspecting selected sections of the system by CCTV, visual inspections of sewer pumping stations, hydraulic modeling of the existing system, flow monitoring of individual drainage basins, and infiltration and inflow analysis of the system as a whole. The detailed report on these findings can be found in the Asset Management Plan. The general condition of the system ranges from good to fair to poor. The newer parts of the system are good and the older parts are fair and reaching the end of their useful life. To maintain status quo the Town should continue to improve the system, using its current maintenance plan and any additions to its operations and maintenance as recommended by the AMP, and should correct deficiencies on a proactive basis. Accordingly it will be necessary to prioritize the work and schedule it over a 10 year period. The following sections detail the work recommended by the AMP and set a 10-year planning schedule for the Town's use. Town of Benson Wastewater Collection System 7 Capital Improvements Plan December 2018 THE WOOTEN COMPANY 4. PROJECTS IDENTIFIED IN ASSET MANAGEMENT PLAN 4.1 SYSTEM NEEDS In 2012 the Town began a multi -phase, multi -year project to develop a long range plan to assess its wastewater system needs by identifying deficiencies in a systematic and comprehensive manner. An Asset Management Plan, this CIP, and an Operation and Maintenance manual for the Town's wastewater collection system were all created as the final phase of the project. An inventory and map of the sewer system, a condition assessment for the manholes and piping systems (through survey, smoke testing, and CCTV inspection), and a condition assessment for the Town's eleven sewage pumping stations were completed, all with the purpose of identifying possible weaknesses in the system and potential locations for improvements projects. Additionally, the capacity of the system was modeled in an effort to identify specific areas with present capacity issues. The capital outlay needs have been identified using the information obtained from these assessments and are prioritized to develop a Capital Improvements Plan the Town can adopt as a guide for planning and budgeting. 4.2 MANHOLE REHABILITATION Inspection of each manhole within the wastewater collection system was located, opened and inspected. Manholes were accessed of physical condition during the inventory process. Of the 634 manholes surveyed, 199 of them had one or more notable defect. Of those, 67 had two notable defects, and of those, 19 had three notable defects. Defect types include the following: • Corrosion; • Cover buried; • Damages to the channel, cover, frame, ring, or wall; • Grease present; • Infiltration present; • Invert leaking; • Misaligned frame; • Missing material; • Odor present; • Service leaking; • Subject to flooding. Town of Benson Wastewater Collection System 8 Capital Improvements Plan December 2018 THE WOOTEN COMPANY The AMP discusses the findings of the Manhole Inspection survey. The inspections identified approximately 213 manholes that contained a defect that requires correction. The work proposed for these manholes is included in the opinion of probable project cost. In addition, there are approximately 122 manholes that contained debris — the Town can address the debris in manholes without a contractor. In addition, the Town indicated there are numerous manholes throughout their system that are brick manholes whose bricks and mortar are failing. To address these manholes, a Find and Fix line item has been added to the opinion of probable project cost. Many of the defects noted in the cost opinion are minor repairs — add rain insert, add vented manhole cover, or add new manhole cover. There are more significant repairs noted as well — replace or rehabilitate the manhole, repairs to services, rims, channels, or inverts, or resetting or elevating the manhole's rim or frame. The more significant repairs should be completed first to ensure the integrity of the Town's wastewater system; then the minor repairs can be addressed. All of the defects noted are either structural in nature or will correct an inflow source of I&I that is rainfall dependent. This work is scheduled to occur in FY2018/19, FY2019/20, and FY2020/21 to allow for opportunities to obtain funding and contracting the work. The opinion of probable project cost to complete the repairs suggested by the survey in FY2018/19 and FY2019/2020 (major repairs) and FY2020/21 (minor repairs) is $934,200. Town of Benson Wastewater Collection System 9 Capital Improvements Plan December 2018 THE WOOTEN COMPANY OPINION OF PROBABLE PROJECT COST' Sewer System Evaluation Manhole Repair Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 Add Rain Insert EA 14 $ 150.00 $ 2,100.00 2 Add Vented Cover EA 8 $ 100.00 $ 800.00 3 Elevate Rim EA 4 $ 1,500.00 $ 6,000.00 4 Rehabilitate EA 47 $ 6,000.00 $ 282,000.00 5 Point Repair EA 75 $ 3,000.00 $ 225,000.00 6 Remove Debris2 EA 122 To be Completed by Town $ - 7 Repair Offset Rim EA 1 $ 1,000.00 $ 1,000.00 8 Repair Channel EA 18 $ 500.00 $ 9,000.00 9 Repair Invert EA 4 $ 500.00 $ 2,000.00 10 Repair Service EA 1 $ 500.00 $ 500.00 11 Replace Manhole EA 2 $ 6,000.00 $ 12,000.00 12 New Cover EA 8 $ 1,500.00 $ 12,000.00 13 Reset Frame EA 25 $ 500.00 $ 12,500.00 14 Find and Fix Failing Manholes3 LS 1 $ 50,000.00 $ 50,000.00 15 Erosion Control LS 1 $ 48,000.00 $ 48,000.00 Construction Sub -Total PRELIMINARY Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 662,900.00 $ 99,500.00 $ 132,600.00 $ 4,300.00 $ 899,300.00 Notes: ' - Assumes major repairs (rehab, point repair, manhole replacement, find and fix) completed 2019-20, remainder completed 2020-21. 2 - Manhole survey indicated locations where debris was present in manhole; Town can address these manholes without a contractor. - Town staff indicates multiple failing brick manholes. Estimated cost to find, assess, and repair. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 4.3 WASTEWATER PUMP STATION REPAIRS Nine of the Town's wastewater pumping stations were inspected as part of the AMP preparation (the two new stations installed by the Town in 2017 were not inspected). The inspection evaluated the pumping stations using the minimum design criteria currently practiced by the NCDEQ. Deficiencies from these criteria were noted and cost estimates to bring the stations to the current design standards were prepared. One pump station (Wall Street) will be fully replaced with a brand new station, as its age, location, and susceptibility to flooding indicate the need to have it replaced. In the remaining older pump stations, the primary deficiency noted was a lack of standby generators. The opinions of probable cost for West Ridge, Lake Shore, Boardwalk, Burris, and King Circle show the addition of a standby generator. The stations not receiving them have generators less than 15 years old that do not need replacement. There were six pump stations that need their wet wells to be lined and/or cleaned, and there were a number of minor maintenance items that need to be addressed at all nine older stations. Additional maintenance items needed have been noted and costs were included for labor intensive items. The overall opinion of probable project cost for the necessary upgrades to the Town's pump stations, as shown on Table 4.2, is estimated to be $844,100 (project scheduled for FY2021/22). Individual project opinions can be found in Appendix A. Town of Benson Wastewater Collection System 11 Capital Improvements Plan December 2018 THE WOOTEN COMPANY OPINION OF PROBABLE PROJECT COST' Summary of All Work on Pump Stations Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 No. 1 1-40 Pump Station LS 1 $ 8,250.00 $ 8,250.00 2 No. 2 Carolyn Drive Station LS 1 $ - $ - 3 No. 3 West Ridge Pump Station LS 1 $ 40,000.00 $ 40,000.00 4 No. 4 Wall Street Pump Station LS 1 $ 400,000.00 $ 400,000.00 5 No. 5 King Circle Pump Station LS 1 $ 32,550.00 $ 32,550.00 6 No. 6 Chicopee Pump Station LS 1 $ 38,300.00 $ 38,300.00 7 No. 7 South Walton Avenue Pump Station LS 1 $ - $ - 8 No. 8 Lake Shore Pump Station LS 1 $ 19,050.00 $ 19,050.00 9 No. 9 Boardwalk Pump Station LS 1 $ 21,050.00 $ 21,050.00 10 No. 10 Burris Pump Station LS 1 $ 26,500.00 $ 26,500.00 11 No. 11 Willa Chase Pump Station LS 1 $ 3,000.00 $ 3,000.00 Construction Sub -Total Contingency (15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 588,700.00 $ 88,600.00 $ 118,100.00 $ 48,700.00 $ 844,100.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. TV THE WOOTENCOMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 4.4 SEWER LINE REPLACEMENT AND REHABILITATION 4.4.1 SMOKE TESTING AND CCTV INSPECTION Smoke Testing and CCTV of the sewers further identified defects in the gravity sewer system that require repair. Smoke testing primarily identifies areas of smoke egress which directly connect into the sewer lines. For example, if rainfall is puddling in an area of egress or if a catch basin shows evidence of smoking during the smoke test, rainfall can flow directly into the sewer causing RDII. Additionally, as the sewer line between manholes is being inspected by CCTV, defects can be identified. Examples include holes in piping, a steel rod driven through a sewer pipe, gas lines installed through a sewer pipe, multiple locations where the water level in the pipe sages due to the pipe settling over time, and leaky old joints. All of these defects contribute to an increase in I&I. With the analysis completed, multiple projects have been defined to correct these deficiencies. A detailed report on these tasks is available in the Asset Management Plan. The projects identified are as follows: • Replacing 8-inch gravity sewer lines with holes in the pipes (two locations); • Replacing 8-inch gravity sewer lines prone to infiltration; • Upsizing 6-inch gravity sewer lines to 8-inch lines, which will address capacity issues evidenced by a significant water mark on the pipes; • Replacing 8-inch gravity sewer lines that have become corroded and filled with debris; • Replacing 8-inch gravity sewer that has become deformed and is prone to infiltration; • Completing numerous point repairs to address undersized pipe, corrosion, liner issues, roots, taps, or other objects protruding into the pipe, cracked and fractured pipes, and debris -filled pipes. The full scope of these projects is fully explained in the CCTV inspection section of the AMP. The first project will be completed in FY 2018/19, and entails replacing multiple segments of 8-inch gravity sewer and completing multiple point repairs. This work, along with the work described in section 4.4.2, has an opinion of probable project cost of $797,950. Additional projects to address the deficiencies noted above are scheduled for FY2019/20, FY2020/21, FY2021/22, and FY2022/23. The overall opinion of probable project cost for all work described in this section is estimated to be $1,843,300. Table 4.3 shows the opinions of probable cost for the projects derived from CCTV inspection and smoke testing. Individual project opinions can be found in Appendix A. 4.4.2 HYDRAULIC MODELING Hydraulic modeling was completed on the Town's system. The hydraulic modeling was completed using customer billing and flow data from the past three years to quantify the flow throughout the system. The model showed one location where the pipes are nearing full capacity due to decreased diameter and slope. Town of Benson Wastewater Collection System 13 Capital Improvements Plan December 2018 THE WOOTEN COMPANY These 8-inch lines should be upsized to 10-inch lines to provide more capacity and to ensure that increased commercial and industrial development will not cause a sanitary sewer overflow. More information regarding this project can be found in the hydraulic modeling section of the AMP. The opinion of probable project cost of this work is estimated to be $736,700 (project scheduled to be completed in FY2023/24). Table 4.4 shows the opinions of probable cost to address what was found in modeling analysis. In addition, the model confirmed the presence of capacity issues that have led to SSOs which occurred during significant rainfall events. At the intersection of U.S. 301 and W. Martin St., manhole E001 accepts flow from an 8-inch line and a 15-inch line. The outlet pipe for this manhole is a 10-inch line that flows into a 12-inch line before reaching the Town's 15-inch outfall line. The model indicated that the 10- inch line is between 50-75% capacity during the Wet Weather Maximum Flow scenario. Town officials have noted multiple significant -volume SSOs that have occurred at manhole E001 in the past 3 years, which suggests that the 10-inch line flowing out of this manhole cannot handle the volume of flow that reaches it during significant rainfall events. Accordingly, the Town plans to replace the existing 10-inch and 12-inch lines with 15-inch gravity sewer. This project will be completed in FY2018-19 as part of the Hurricane Matthew grant received by the Town (see section 4.4.1 for the remainder of the project completed using this grant funding). The opinion of probable project cost for the entire project is $797,950. 4.4.3 FIND AND Fix REPAIRS As the operator of a large and aging wastewater system, the 'Town should proactively plan for unforeseen repairs to its system, in both its collection system and at its pump stations. It is advised for the Town to undertake a Find -and -Fix repair project every 3 years such that the Town is completing repairs to its system as they present themselves. If problems do not present themselves, the Town can proactively address its older sections of Town to prevent a future problem from occurring. As the extent and contents of these projects will not be known until they are ready to be executed, a detailed opinion of probable cost has not been developed. Rather, for budgeting purposes, a budget cost of $500,000 has been added to year 3 of the 10-year calendar, and a cost of $1,000,000 has been added to years 6 and 9 of the 10-year calendar. Town of Benson Wastewater Collection System 14 Capital Improvements Plan December 2018 THE WOOTEN COMPANY OPINION OF PROBABLE PROJECT COST' Summary of Projects from CCTV Inspection Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 S. Lee Street Area LS 1 $ 127,450.00 $ 127,450.00 2 N. Lee Street Area LS 1 $ 222,700.00 $ 222,700.00 3 Parrish Drive Area LS 1 $ 236,800.00 $ 236,800.00 4 Wall Street Pump Station Area LS 1 $ 213,150.00 $ 213,150.00 5 Carolyn Drive Pump Station Area LS 1 $ 156,000.00 $ 156,000.00 6 Repairs for Priority Rating 3 Segments LS 1 $ 66,500.00 $ 66,500.00 Construction Sub -Total Contingency (15%) PRELIMINARY Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 1,022,600.00 $ 153,700.00 $ 204,700.00 $ 49,500.00 $ 1,430,500.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; projects scheduled in first 4 years of CIP - see individual project cost opinions. TV THE WOOTENCOMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' Catherine St. Area - Hydraulic Modeling Results Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 Remove 8-inch Gravity Sewer & Replace with 10-inch Gravity Sewer LF 1750 $ 110.00 $ 192,500.00 2 4' ID Manhole EA 8 $ 6,000.00 $ 48,000.00 3 Reconnect Existing Sewer Lines to New Manhole EA 7 $ 750.00 $ 5,250.00 4 Curb & Gutter, Remove & Replace LF 200 $ 35.00 $ 7,000.00 5 Reconnect Existing Sewer Services EA 27 $ 400.00 $ 10,800.00 6 Asphalt Roadway Repair SY 1800 $ 80.00 $ 144,000.00 7 Concrete Driveway Repair SY 75 $ 100.00 $ 7,500.00 8 Gravel Driveway Repair SY 50 $ 15.00 $ 750.00 9 Storm Drainage Infrastructure Repair LS 1 $ 2,500.00 $ 2,500.00 10 ITraffic Control LS 1 1 $ 10,000.00 $ 10,000.00 11 1Bypass pumping Day 15 $ 1,500.00 $ 22,500.00 12 1 Erosion Control LS 1 $ 33,900.00 $ 33,900.00 Construction Sub -Total PRELIMINARY Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 484,700.00 $ 72,800.00 $ 97,000.00 $ 82,200.00 $ 736,700.00 Notes: - Unit costs and engineering fees for project bid in 2019; project scheduled for 2023-24 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' N. Lincoln St. / W. Martin St. Sewer Improvements Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 8-inch Gravity Sewer, Remove and Replace LF 1825 $ 70.00 $ 127,750.00 2 10-inch Gravity Sewer, Remove and Replace LF 825 $ 90.00 $ 74,250.00 3 10-inch Gravity Sewer, Remove and Replace with 15-inch Gravity Sewer LF 300 $ 125.00 $ 37,500.00 4 10-inch Gravity Sewer, Remove and Replace with with 30- inch Steel Encasement with 15-inch Gravity Sewer, by Dry Bore -and -Jack LF 75 $ 500.00 $ 37,500.00 5 12-inch Gravity Sewer, Remove and Replace with 15-inch Gravity Sewer LF 400 $ 125.00 $ 50,000.00 6 12-inch Gravity Sewer, Remove and Replace with 30-inch Steel Encasement with 15-inch Gravity Sewer, by Dry Bore -and -Jack LF 100 $ 500.00 $ 50,000.00 7 Point Repairs from MH E004 to E005 LS 1 $ 12,500.00 $ 12,500.00 8 4' ID Manhole EA 11 $ 6,000.00 $ 66,000.00 9 Rehabilitate/Replace Manhole EA 3 $ 6,000.00 $ 18,000.00 10 Point Repairs on Manhole EA 3 $ 3,000.00 $ 9,000.00 11 Railroad Access LS 1 $ 10,000.00 $ 10,000.00 12 Install New Tap & Service EA 1 $ 1,500.00 $ 1,500.00 13 Reconnect Service Lines EA 25 $ 400.00 $ 10,000.00 14 Asphalt Roadway Repair SY 450 $ 80.00 $ 36,000.00 15 Concrete Driveway Repair SY 275 $ 100.00 $ 27,500.00 16 Gravel/Soil Driveway Repair SY 150 $ 15.00 $ 2,250.00 17 By Pass Pumping Day 7 $ 1,500.00 $ 10,500.00 18 Erosion Control LS 1 $ 25,000.00 $ 25,000.00 Construction Sub -Total PRELIMINARY Contingency Engineering/CA/CO Easement Survey/Mapping Total Project Cost $ 605,250.00 $ 87,800.00 $ 96,900.00 $ 8,000.00 $ 797,950.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2018-19 in CIP. 11 THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 4.5 DECOMMISSIONING BOARDWALK AND LAKE SHORE PUMP STATIONS Previous studies have identified the decommissioning of the Boardwalk and Lake Shore pump stations as a potential future project to improve operational efficiency and reduce costs. These stations are currently fully operational, and while minor maintenance issues occur periodically, no major repairs should be expected in the foreseeable future. The stations receive wastewater from residents in the Boardwalk and Lake Shore subdivisions and discharge the wastewater ultimately to the Town of Benson WWTP. As they are functioning correctly, abandonment is not a matter of necessity, but rather of increasing the Town's efficiency and increasing the system's reliability. The Boardwalk pump station and Lake Shore pump station are located within a tenth of a mile of each other, and the Lake Shore pump station is at a much lower elevation than the Boardwalk pump station, so extending gravity sewer from the Boardwalk pump station to the Lake Shore pump station is feasible. Furthermore, an existing gravity sewer line located in the existing utility easement east of W. Hale Street is also at a lower elevation than the line entering the Lake Shore pump station. Accordingly, all of the wastewater generated by residents currently served by both the Boardwalk and Lake Shore pump stations can be fed into the W. Hale St. sewer line while still meeting the minimum gravity sewer slope requirements established by the NCDEQ wastewater permitting section. Decommissioning these pump stations removes the operation and maintenance costs that will be incurred while they are still in service. Decommissioning the Boardwalk and Lake Shore pump stations fits into the Town's long-term plans. By removing these stations and extending the gravity sewer lines from these stations to existing services, the Town makes its infrastructure more efficient, and easier to maintain. Additionally, the fiscal and manpower burden involved in maintaining these stations is removed, and the Town can more effectively allocate its resources. The opinion of probable project cost shown below indicates the expected project cost to complete the decommissioning of these two pump stations is approximately $1,352,200 (project scheduled for FY2028/29). Design for these projects was completed as part of a 2016 USDA project undertaken by the Town. However, it will need to be updated to reflect any changes in existing conditions. Accordingly, engineering design fees are still included in this opinion. Town of Benson Wastewater Collection System 18 Capital Improvements Plan December 2018 THE WOOTEN COMPANY OPINION OF PROBABLE PROJECT COST Abandon Lake Shore & Boardwalk Pump Stations Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 8" C900 PVC Sanitary Sewer, Depth 0'-5' LF 250 $ 50.00 $ 12,500.00 2 8" C900 PVC Sanitary Sewer, Depth 5-10' LF 125 $ 75.00 $ 9,380.00 3 8" C900 PVC Sanitary Sewer, Depth 10'-15' LF 75 $ 100.00 $ 7,500.00 4 8" C900 PVC Sanitary Sewer, Depth 15-20' LF 475 $ 140.00 $ 66,500.00 5 8" C900 PVC Sanitary Sewer, Depth 20'-25' LF 500 $ 200.00 $ 100,000.00 6 8" C900 PVC Sanitary Sewer, Depth 25'-30' LF 725 $ 300.00 $ 217,500.00 7 8" SDR35 PVC Sanitary Sewer, Depth 0'-5' LF 25 $ 40.00 $ 1,000.00 8 8" SDR35 PVC Sanitary Sewer, Depth 5-10' LF 275 $ 55.00 $ 15,130.00 9 8" SDR35 PVC Sanitary Sewer, Depth 10'-15' LF 550 $ 75.00 $ 41,250.00 10 8" SDR35 PVC Sanitary Sewer, Depth 15-20' LF 150 $ 100.00 $ 15,000.00 11 4' ID Manhole, Depth 5'-10' EA 2 $ 4,000.00 $ 8,000.00 12 4' ID Manhole, Depth 10'-15' EA 5 $ 7,500.00 $ 37,500.00 13 4' ID Manhole, Depth 15-20' EA 4 $ 11,500.00 $ 46,000.00 14 4' ID Doghouse Manhole, Depth 5-10' EA 2 $ 5,000.00 $ 10,000.00 15 5' ID Manhole, Depth 20'-25' EA 3 $ 13,500.00 $ 40,500.00 16 5' ID Manhole, Depth 25'-30' EA 2 $ 17,500.00 $ 35,000.00 17 Anti -Seep Collar EA 2 $ 1,500.00 $ 3,000.00 18 Abandon Existing Pump Stations EA 2 $ 12,500.00 $ 25,000.00 19 Remove and Dispose of Existing Sewer LF 400 $ 15.00 $ 6,000.00 20 Remove and Dispose of Existing Manholes EA 2 $ 1,500.00 $ 3,000.00 21 Reconnect Existing Sewer Services EA 4 $ 400.00 $ 1,600.00 22 New Sewer Services EA 3 $ 2,000.00 $ 6,000.00 23 Asphalt Roadway Repair from Open Cut Install SY 75 $ 80.00 $ 6,000.00 24 Asphalt Overlay (1.25" S9.5A) SY 500 $ 35.00 $ 17,500.00 25 Concrete Driveway Repair SY 50 $ 100.00 $ 5,000.00 26 Gravel Driveway Repair SY 75 $ 15.00 $ 1,130.00 27 Erosion Control LS 1 $ 60,000.00 $ 60,000.00 PRELIMINARY Construction Sub -Total $ 796,990.00 Contingency (15%) $ 119,600.00 Engineering/CA/CO2 $ 99,700.00 Legal/Easement Acquisition $ 20,000.00 Project Cost Inflation (3% per year)' $ 315,900.00 Notes: Total Project Costi $ 1,352,190.00 ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2028-29 in CIP. 2 - Will only require minor engineering design, as design is already complete. Bidding/CA/CO required when project moves forward. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 4.6 WASTEWATER COLLECTION SYSTEM LONG RANGE MASTER PLAN Past experiences when working with smaller towns like Benson has shown that towns similar to Benson have benefitted from having a master collection system plan. Normally, growth in towns of Benson's size occurs in two ways. One form of growth comes through creating a higher population density in terms of customers per acre. New customers occupy previously platted lots and fill in vacant lots in subdivisions and within the older parts of town. The other form of growth occurs through new residential and/or commercial developments in which the sizing and general location of sewers will be determined by the developer. Collector lines are typically 8 inch diameter and follow streets and roadways within the subdivision. The collector lines then will need to connect to the Town's sewer to flow to the WWTP. With proper planning, the Town can take advantage of the new development's plan by working together to build a system that will meet the Town's future needs. To best meet these needs and to develop a robust partnership with the developer(s) that may choose to build in the Town, the Town should have a well thought out master plan available to the developer(s) at the beginning of the planning stage. Additionally, having completed the inventory mapping of the existing system and the hydraulic analysis of the present conditions of the system, an efficient master plan can be developed. This plan should include projecting future growth into the system. The hydraulic model can be modified to show increased demands from new subdivisions, other residential growth, or increased commercial/industrial growth. The Town can then see where capacity issues are seen as growth comes to the Town. The opinion of probable project cost to create a long-range master plan is $40,000, as shown in the 10-year calendar. Town of Benson Wastewater Collection System 20 Capital Improvements Plan December 2018 THE WOOTEN COMPANY 5. CIP PROJECT PRIORITY RANKING & 10-YEAR SCHEDULE 5.1 PRIORITIZATION OF COLLECTION SYSTEM NEEDS The recommended improvements discussed in the sections above have been prioritized in the order in which they should be addressed over time. These items were prioritized using a two tiered ranking system which considers both function and urgency. The projects were scored using the table below. The second table indicates the ranking score that each project received. Smaller scores indicate a higher priority project. Table 5.1— Two Tiered Ranking System Function °i7l Urgency o o > Legislation (1) 1 2 3 4 5 6 7 8 Hazard (2) 2 4 6 8 10 12 14 16 Efficiency (3) 3 6 9 12 15 18 21 24 Std. of Service (4) 4 8 12 16 20 24 28 32 Economic Advantage (5) 5 10 15 20 25 30 35 40 Increased/Improved Service (6) 6 12 18 24 30 36 42 48 New Service or Convenience (7) 7 14 21 28 35 42 49 56 Town of Benson Wastewater Collection System 21 Capital Improvements Plan December 2018 THE WOOTEN COMPANY Table 5.2 — Capital Improvements Plan Ranking Project Function Ranking Urgency Ranking Total Ranking Score Annual Cleaning of sewers Protection (1) Hazard (2) 2 Manhole Rehabilitation Protection (1) Hazard (2) 2 Wastewater Pumping Protection(1) Hazard(2) 2 Station Upgrade Sewer Line Rehabilitation/Replacement Protection (1) Hazard (2) 2 — CCTV/Smoke Test Sewer Line Rehabilitation/Replacement Protection (1) ]Efficiency (3) 3 — Hydraulic Modeling Collection System Master Protection(1) ]Efficiency (3) 3 Planning Find -and -Fix Capital Protection (1) Efficiency (3) 3 Repairs Decommissioning Lake Increased/Improved Shore and Boardwalk Pump Protection (1) 6 Service (6) Stations Town of Benson Wastewater Collection System 22 Capital Improvements Plan December 2018 THE WOOTEN COMPANY 5.2 SCHEDULING OF COLLECTION SYSTEM NEEDS The Town has undertaken a long range planning program to evaluate the existing conditions of its sewer collection system. The project consisted of mapping the system, visually inspecting the manholes, smoke testing the gravity collection system, inspecting selected sections of the system with CCTV cameras, visual inspections of sewer pumping stations, flow monitoring and infiltration and inflow analysis of the system as a whole, and hydraulic modeling of the existing system. The detailed report on these findings can be found in the Asset Management Plan. The general condition of the system ranges from good to fair to poor. The newer parts of the system are good, while the older parts are in fair condition and are reaching the end of their useful life. To maintain status quo the Town should continue to improve the system, using its current maintenance plan and any additions to its operations and maintenance schedule as recommended by the AMP, and should correct deficiencies on a proactive basis. Accordingly it will be necessary to prioritize the work and schedule it over a 10 year period. The projects have been scheduled based on their priority ranking. The table below indicates the proposed schedule. Annual smoke testing and cleaning of the sewers, Capital Outlay reserves, and a triennial Find - and Fix Capital Repairs project are included in addition to the projects identified in the AMP to show a complete picture of the overall annual costs suggested for future planning. All unit costs in each opinion of probable project cost were created with 2019 bid pricing; however, all of these projects will not be bid in 2019. Accordingly, a 3% per year inflationary figure has been added to each project, depending on the year the project is scheduled to bid. Town of Benson Wastewater Collection System 23 Capital Improvements Plan December 2018 THE WOOTEN COMPANY Table 5.3 — Wastewater Collection System Capital Improvements Schedule (FY2019/20-FY2028/29) Project Current Planning Planning Planning Planning Planning Planning Yr.6&7 Planning Yr.8-10 Project 1 Expenditure Year Yr.1 Yr.2 Yr.3 Yr.4 Yr.5 FY2024/25- FY2026/27- FY2018/192 FY2019/20 FY2020/21 FY2021/22 FY2022/23 FY2023/24 FY2025/26 FY2028/29 Smoke Testing and $732,200 $56,000 $57,800 $59,500 $61,200 $104,700 $131,800 $261,200 Cleaning of Sewers Manhole Rehabilitation $934,200 $34,900 $827,000 $72,300 Wastewater Pumping Station $844,100 $844,100 Rehabilitation Sewer Line Rehabilitation / $1,843,300 $412,800 $472,950 $421,900 $305,450 $230,2100 Replacement — CCTV/Smoke Test Sewer Line Rehabilitation / Replacement— $1,086,950 $350,250 $736,700 Hydraulic Modeling Find -and -Fix Capital Repairs $2,500,000 $500,000 $1,000,000 $1,000,000 Long Range Sewer $40,000 $40,000 Line Master Plan Decommissioning $1,3529200 $1,352,200 Pump Stations Total System Expenditures $9,332 950 $797 950 $1355 950 $592 000 $1 709 050 $291 400 $841 400 $1 131 800 $2 613 400 ' 'Project expenditure includes interest; project cost for completion in FY2018/19 can be calculated by subtracting interest from project expenditure. 2Project funded by Hurricane Matthew recovery grant. Town of Benson Wastewater Collection System 24 Capital Improvements Plan wy December 2018 THE WOOTEHOOMPAW 6. FUNDING PROGRAMS The Town of Benson will continue to improve its Wastewater Collection system as funding becomes available. The Town plans to pursue this funding as it becomes available to fund its capital improvement needs. Below is a list of different potential funding sources that may be able to assist the Town in reaching these goals. These funding agencies have different submission deadlines for applications for funding; accordingly, it is important that these submittal deadlines are taken into account when planning the project timeline. A combination of these agencies can be used to help the Town's complete the projects described in the AMP and those that present themselves in the future. • The United States Department of Agriculture (USDA) can provide loans with 40 year terms and low interest rates. USDA has a Rural Development branch which funds rural communities with populations of less than 10,000 people. Often the funds can be awarded in loans and grants to further assist the town in the project financing. The Town of Benson may qualify for grant funding through USDA, as its 2016 Median Household Income (MHI) of $30,918 is well below the N.C. average of $48,256 (according to the 2016 Local Government Unit Parameters — updated 2/2018). This MHI value also affects the interest rate available for payback on a loan from USDA. Other factors, such as sewer rates and fund balance, could affect the amount of grant money the Town is eligible for and ultimately receives. USDA accepts loan and grant applications on a rolling basis. • The Town of Benson is also eligible for Community Development Block Grant (CDBG) funds, due to its rate of Low to Moderate Income (LMI) households of 79.54%. This grant source will fund wastewater infrastructure projects such as those listed herein. The maximum grant available through this program is $2,000,000. CDBG grant application deadlines are in the fall of each year. • The Division of Water Infrastructure section of the North Carolina Department of Environmental Quality has loan and grant programs specifically for sewer. The Town would be eligible for Clean Water State Revolving Fund (CWSRF) funds, a low interest loan for local government units. This funding program would help with any of the wastewater collection projects described in this document. Loan terms are typically 20 years, with low interest rates available. This funding source has two application deadlines — one occurs in the spring of each year, and one occurs in the fall of each year. • The Golden LEAF Foundation provides grant funds for rural and/or economically distressed towns. These funds are designed for projects that build economic opportunities in towns like Town of Benson Wastewater Collection System 25 Capital Improvements Plan December 2018 THEW001ENCOMPANY Benson. The Town could use these funds in any of the projects described above. Like USDA, Golden Leaf applications are accepted on a rolling basis. Should loan grant funds be unavailable or inadequate for the projects the Town wishes to pursue, it is possible for the Town to use local funds or obtain a private loan. In this case, the Town should give careful consideration to adjusting water and sewer rates so that in addition to maintaining sufficient cash flow for routine operation and maintenance, sufficient funds are set aside for purposes of undertaking the necessary capital improvement projects. Town of Benson Wastewater Collection System 26 Capital Improvements Plan December 2018 1HEWOO BCOMPANY APPENDIX A - OPINIONS OF PROBABLE PROJECT COST Town of Benson Wastewater Collection System Appendix IV Capital Improvements Plan December 2018 iHEWOMUCOMPAW OPINION OF PROBABLE PROJECT COST' Sewer System Evaluation Manhole Repair Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 Add Rain Insert EA 14 $ 150.00 $ 2,100.00 2 Add Vented Cover EA 8 $ 100.00 $ 800.00 3 Elevate Rim EA 4 $ 1,500.00 $ 6,000.00 4 Rehabilitate EA 47 $ 6,000.00 $ 282,000.00 5 Point Repair EA 75 $ 3,000.00 $ 225,000.00 6 Remove Debris2 EA 122 To be Completed by Town $ - 7 Repair Offset Rim EA 1 $ 1,000.00 $ 1,000.00 8 Repair Channel EA 18 $ 500.00 $ 9,000.00 9 Repair Invert EA 4 $ 500.00 $ 2,000.00 10 Repair Service EA 1 $ 500.00 $ 500.00 11 Replace Manhole EA 2 $ 6,000.00 $ 12,000.00 12 New Cover EA 8 $ 1,500.00 $ 12,000.00 13 Reset Frame EA 25 $ 500.00 $ 12,500.00 14 Find and Fix Failing Manholes3 LS 1 $ 50,000.00 $ 50,000.00 15 Erosion Control LS 1 $ 48,000.00 $ 48,000.00 Construction Sub -Total PRELIMINARY Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 662,900.00 $ 99,500.00 $ 132,600.00 $ 4,300.00 $ 899,300.00 Notes: ' - Assumes major repairs (rehab, point repair, manhole replacement, find and fix) completed 2019-20, remainder completed 2020-21. 2 - Manhole survey indicated locations where debris was present in manhole; Town can address these manholes without a contractor. 3 - Town staff indicates multiple failing brick manholes. Estimated cost to find, assess, and repair. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' PS #1 1-40 Pump Station Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI TOTAL ITEM NO. DESCRIPTION UNITS QUANTITY UNIT COST EXTENDED TOTAL 1 Replace 20hp pump motors EA 2 $ 3,500.00 $ 7,000.00 2 Replace dry well dehumidifier LS 1 $ 1,250.00 $ 1,250.00 Construction Sub -Total $ 8,250.00 PRELIMINARY Contingency(15%) $ 1,300.00 Engineering/CA/CO $ 1,700.00 Project Cost Inflation (3% per year)' $ 700.00 Total Project Cost $ 11,950.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. 2 - Item identified in 2016 "Hurricane Matthew Flood Damage Assessment & Cost Estimate - Wastewater System" completed by The Wooten Company; price adjusted for project bid in 2019. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST PS #2 Carolyn Drive Pump Station Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI TOTAL ITEM NO. DESCRIPTION UNITS QUANTITY UNIT COST EXTENDED TOTAL 1 NEWLY CONSTRUCTED PRELIMINARY TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 Construction Sub -Total $ Contingency (15%) $ Engineering/CA/CO $ Total Project Cost $ OPINION OF PROBABLE PROJECT COST' PS #3 West Ridge Pump Station Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 New Generator LS 1 $ 15,000.00 $ 15,000.00 2 Clean and Coat Interior of wetwell with liner LS 1 $ 12,500.00 $ 12,500.00 3 Repair Hatch LS 1 $ 2,500.00 $ 2,500.00 4 Address Pump Concerns LS 1 $ 10,000.00 $ 10,000.00 PRELIMINARY Construction Sub -Total Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 40,000.00 $ 6,000.00 $ 8,000.00 $ 3,300.00 $ 57,300.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' PS #4 Wall Street Pump Station Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI TOTAL ITEM NO. DESCRIPTION UNITS QUANTITY UNIT COST EXTENDED TOTAL 1 INew Pump Station LS 1 $ 400,000.00 $ 400,000.00 Construction Sub -Total $ 400,000.00 PRELIMINARY Contingency(15%) $ 60,000.00 Engineering/CA/CO $ 80,000.00 Project Cost Inflation (3% per year)' $ 32,900.00 Total Project Cost $ 572,900.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' PS #5 King Circle Pump Station Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 Install Vent Screen EA 1 $ 50.00 $ 50.00 2 Clean and Coat Interior of wetwell with liner LS 1 $ 17,500.00 $ 17,500.00 3 New Generator LS 1 $ 15,000.00 $ 15,000.00 PRELIMINARY Construction Sub -Total Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 32,550.00 $ 4,900.00 $ 6,600.00 $ 2,700.00 $ 46,750.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' PS #6 Chicopee Pump Station Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 Install Insect Screen on Vent EA 1 $ 50.00 $ 50.00 2 Install RPZ Type Backflow preventor EA 1 $ 750.00 $ 750.00 3 Clean and Coat Interior of wetwell with liner LS 1 $ 37,500.00 $ 37,500.00 PRELIMINARY Construction Sub -Total Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 38,300.00 $ 5,800.00 $ 7,700.00 $ 3,200.00 $ 55,000.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST PS #7 South Walton Avenue Pump Station Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI TOTAL ITEM NO. DESCRIPTION UNITS QUANTITY UNIT COST EXTENDED TOTAL 1 NEWLY CONSTRUCTED PRELIMINARY ui THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 Construction Sub -Total $ Contingency (15%) $ Engineering/CA/CO $ Total Project Cost $ OPINION OF PROBABLE PROJECT COST' PS #8 Lake Shore Pump Station Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 New Generator LS 1 $ 18,000.00 $ 18,000.00 2 Install Insect Screens on vent EA 1 $ 50.00 $ 50.00 3 Remove Grease build up in wetwell LS 1 $ 1,000.00 $ 1,000.00 PRELIMINARY Construction Sub -Total Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 19,050.00 $ 2,900.00 $ 3,900.00 $ 1,600.00 $ 27,450.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. P - Pump Station can be decommissioned (see "Abandon Lake Shore & Boardwalk Pump Stations" Opinion. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' PS #9 Boardwalk Pump Station' Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 New Generator LS 1 $ 20,000.00 $ 20,000.00 2 Clean Wet Well EA 1 $ 1,000.00 $ 1,000.00 3 Install insect Screen EA 1 $ 50.00 $ 50.00 PRELIMINARY Construction Sub -Total Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 21,050.00 $ 3,200.00 $ 4,300.00 $ 1,800.00 $ 30,350.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. 2 - Pump Station can be decommissioned (see "Abandon Lake Shore & Boardwalk Pump Stations" Opinion. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' PS #10 Burris Pump Station Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 New Generator LS 1 $ 20,000.00 $ 20,000.00 2 Clean and Paint Piping exposed in Vault LS 1 $ 1,500.00 $ 1,500.00 3 Replace Check Valve EA 2 $ 2,500.00 $ 5,000.00 PRELIMINARY Construction Sub -Total Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 26,500.00 $ 4,000.00 $ 5,300.00 $ 2,200.00 $ 38,000.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' PS #11 Willa Chase Pump Station Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI TOTAL ITEM NO. DESCRIPTION UNITS QUANTITY UNIT COST EXTENDED TOTAL 1 IClean and repaint piping and valves in vaults LS 1 $ 1,500.00 $ 1,500.00 2 IClean Wetwell LS 1 1 1 $ 1,500.00 $ 1,500.00 Construction Sub -Total $ 3,000.00 PRELIMINARY Contingency(15%) $ 500.00 Engineering/CA/CO $ 600.00 Project Cost Inflation (3% per year)' $ 300.1 Total Project Cost $ 4,400.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' Summary of All Work on Pump Stations Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 No. 1 1-40 Pump Station LS 1 $ 8,250.00 $ 8,250.00 2 No. 2 Carolyn Drive Station LS 1 $ - $ - 3 No. 3 West Ridge Pump Station LS 1 $ 40,000.00 $ 40,000.00 4 No. 4 Wall Street Pump Station LS 1 $ 400,000.00 $ 400,000.00 5 No. 5 King Circle Pump Station LS 1 $ 32,550.00 $ 32,550.00 6 No. 6 Chicopee Pump Station LS 1 $ 38,300.00 $ 38,300.00 7 No. 7 South Walton Avenue Pump Station LS 1 $ - $ - 8 No. 8 Lake Shore Pump Station LS 1 $ 19,050.00 $ 19,050.00 9 No. 9 Boardwalk Pump Station LS 1 $ 21,050.00 $ 21,050.00 10 No. 10 Burris Pump Station LS 1 $ 26,500.00 $ 26,500.00 11 No. 11 Willa Chase Pump Station LS 1 $ 3,000.00 $ 3,000.00 Construction Sub -Total Contingency (15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 588,700.00 $ 88,600.00 $ 118,100.00 $ 48,700.00 $ 844,100.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. TV THE WOOTENCOMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST N. Lee Street Area Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 8-inch Gravity Sewer, Remove and Replace LF 1000 $ 70.00 $ 70,000.00 2 4' ID Manhole EA 4 $ 6,000.00 $ 24,000.00 3 Reconnect Service Lines EA 13 $ 400.00 $ 5,200.00 4 Asphalt Roadway Repair SY 1150 $ 80.00 $ 92,000.00 5 Traffic Control LS 1 $ 5,000.00 $ 5,000.00 6 IBy Pass Pumping Day 7 $ 1,500.00 $ 10,500.00 7 IlErosion Control I LS 1 1 1 $ 16,000.00 $ 16,000.00 Construction Sub -Total PRELIMINARY Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 222,700.00 $ 33,500.00 $ 44,600.00 $ - $ 300,800.00 Notes: - Unit costs and engineering fees for project bid in 2019; project scheduled for 2019-20 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' S. Lee Street Area Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 8-inch Gravity Sewer, Remove and Replace LF 575 $ 70.00 $ 40,250.00 2 4' ID Manhole EA 2 $ 6,000.00 $ 12,000.00 3 Connect to Existing Manhole EA 1 $ 2,000.00 $ 2,000.00 4 Reconnect Service Lines EA 3 $ 400.00 $ 1,200.00 5 Asphalt Roadway Repair SY 650 $ 80.00 $ 52,000.00 6 ITraffic Control LS 1 1 1 $ 5,000.00 $ 5,000.00 7 IBy Pass Pumping Day 1 4 1 $ 1,500.00 $ 6,000.00 8 JErosion Control LS 1 1 1 $ 9,000.00 $ 9,000.00 Construction Sub -Total PRELIMINARY Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 127,450.00 $ 19,200.00 $ 25,500.00 $ - $ 172,150.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2019-20 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' Parrish Drive Area Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 Remove 6-inch Gravity Sewer and Replace with 8-inch Gravity Sewer LF 1050 $ 70.00 $ 73,500.00 2 4' ID Manhole EA 3 $ 6,000.00 $ 18,000.00 3 Connect to Existing Manhole EA 1 $ 2,000.00 $ 2,000.00 4 Reconnect Service Lines EA 12 $ 400.00 $ 4,800.00 5 Curb & Gutter, Remove & Replace LF 200 $ 35.00 $ 7,000.00 6 Asphalt Roadway Repair SY 1175 $ 80.00 $ 94,000.00 7 Storm Drainage Infrastructure Repair LS 1 $ 5,000.00 $ 5,000.00 8 Traffic Control LS 1 $ 5,000.00 $ 5,000.00 9 By Pass Pumping Day 7 $ 1,500.00 $ 10,500.00 10 IErosion Control LS 1 1 $ 17,000.00 $ 17,000.00 Construction Sub -Total PRELIMINARY Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 236,800.00 $ 35,600.00 $ 47,400.00 $ 9,600.00 $ 329,400.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2020-21 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' Wall Street Pump Station Area Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 8-inch Gravity Sewer, Remove and Replace LF 800 $ 70.00 $ 56,000.00 2 Reconnect Service Lines EA 6 $ 400.00 $ 2,400.00 3 4' ID Manhole EA 3 $ 6,000.00 $ 18,000.00 4 Curb & Gutter, Remove & Replace LF 300 $ 35.00 $ 10,500.00 5 NCDOT Roadway Repair SY 350 $ 125.00 $ 43,750.00 6 Asphalt Driveway Repair SY 250 $ 80.00 $ 20,000.00 7 Storm Drainage Infrastructure Repair LS 1 $ 15,000.00 $ 15,000.00 8 Traffic Control LS 1 $ 25,000.00 $ 25,000.00 9 By Pass Pumping Day 5 $ 1,500.00 $ 7,500.00 10 Erosion Control LS 1 $ 15,000.00 $ 15,000.00 Construction Sub -Total PRELIMINARY Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 213,150.00 $ 32,000.00 $ 42,700.00 $ 17,600.00 $ 305,450.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2021-22 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' Carolyn Drive Pump Station Area Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 8-inch Gravity Sewer, Remove and Replace LF 525 $ 70.00 $ 36,750.00 2 8-inch Gravity Sewer in 16-inch Steel Encasement, by Dry Bore & Jack LF 175 $ 350.00 $ 61,250.00 3 4' ID Manhole EA 5 $ 6,000.00 $ 30,000.00 4 Railroad Access LS 1 $ 10,000.00 $ 10,000.00 5 IBy Pass Pumping Day 7 $ 1,500.00 $ 10,500.00 6 JErosion Control LS 1 $ 7,500.00 $ 7,500.00 Construction Sub -Total PRELIMINARY Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 156,000.00 $ 23,400.00 $ 31,200.00 $ 19,600.00 $ 230,200.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2022-23 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' Repairs for Priority Rating 3 Segments Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 Remove 6-inch Gravity Sewer and Replace with 8-inch Gravity Sewer MH D008 to D007 LS 1 $ 45,000.00 $ 45,000.00 2 Manhole Rehabilitation & point repair at MH B079 LS 1 $ 5,000.00 $ 5,000.00 3 Point Repairs from MH B016 to B017 LS 1 $ 6,500.00 $ 6,500.00 4 Heavy Cleaning from MH A052 to A052A LF 200 $ 10.00 $ 2,000.00 5 Heavy Cleaning from MH G018 to G019 LF 300 $ 10.00 $ 3,000.00 6 Erosion Control LS 1 $ 5,000.00 $ 5,000.00 Construction Sub -Total PRELIMINARY Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 66,500.00 $ 10,000.00 $ 13,300.00 $ 2,700.00 $ 92,500.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2020-21 in CIP. 2 - 6-inch line shows significant corrosion and is undersized per NCDEQ Minimum Design Criteria TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' Summary of Projects from CCTV Inspection Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 S. Lee Street Area LS 1 $ 127,450.00 $ 127,450.00 2 N. Lee Street Area LS 1 $ 222,700.00 $ 222,700.00 3 Parrish Drive Area LS 1 $ 236,800.00 $ 236,800.00 4 Wall Street Pump Station Area LS 1 $ 213,150.00 $ 213,150.00 5 Carolyn Drive Pump Station Area LS 1 $ 156,000.00 $ 156,000.00 6 Repairs for Priority Rating 3 Segments LS 1 $ 66,500.00 $ 66,500.00 Construction Sub -Total Contingency (15%) PRELIMINARY Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 1,022,600.00 $ 153,700.00 $ 204,700.00 $ 49,500.00 $ 1,430,500.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; projects scheduled in first 4 years of CIP - see individual project cost opinions. TV THE WOOTENCOMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' Catherine St. Area - Hydraulic Modeling Results Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 Remove 8-inch Gravity Sewer & Replace with 10-inch Gravity Sewer LF 1750 $ 110.00 $ 192,500.00 2 4' ID Manhole EA 8 $ 6,000.00 $ 48,000.00 3 Reconnect Existing Sewer Lines to New Manhole EA 7 $ 750.00 $ 5,250.00 4 Curb & Gutter, Remove & Replace LF 200 $ 35.00 $ 7,000.00 5 Reconnect Existing Sewer Services EA 27 $ 400.00 $ 10,800.00 6 Asphalt Roadway Repair SY 1800 $ 80.00 $ 144,000.00 7 Concrete Driveway Repair SY 75 $ 100.00 $ 7,500.00 8 Gravel Driveway Repair SY 50 $ 15.00 $ 750.00 9 Storm Drainage Infrastructure Repair LS 1 $ 2,500.00 $ 2,500.00 10 Traffic Control LS 1 $ 10,000.00 $ 10,000.00 11 Bypass pumping Day 15 $ 1,500.00 $ 22,500.00 12 Erosion Control LS 1 $ 33,900.00 $ 33,900.00 Construction Sub -Total PRELIMINARY Contingency(15%) Engineering/CA/CO Project Cost Inflation (3% per year)' Total Project Cost $ 484,700.00 $ 72,800.00 $ 97,000.00 $ 82,200.00 $ 736,700.00 Notes: - Unit costs and engineering fees for project bid in 2019; project scheduled for 2023-24 in CIP. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST' N. Lincoln St. / W. Martin St. Sewer Improvements Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 8-inch Gravity Sewer, Remove and Replace LF 1825 $ 70.00 $ 127,750.00 2 10-inch Gravity Sewer, Remove and Replace LF 825 $ 90.00 $ 74,250.00 3 10-inch Gravity Sewer, Remove and Replace with 15-inch Gravity Sewer LF 300 $ 125.00 $ 37,500.00 4 10-inch Gravity Sewer, Remove and Replace with with 30- inch Steel Encasement with 15-inch Gravity Sewer, by Dry Bore -and -Jack LF 75 $ 500.00 $ 37,500.00 5 12-inch Gravity Sewer, Remove and Replace with 15-inch Gravity Sewer LF 400 $ 125.00 $ 50,000.00 6 12-inch Gravity Sewer, Remove and Replace with 30-inch Steel Encasement with 15-inch Gravity Sewer, by Dry Bore -and -Jack LF 100 $ 500.00 $ 50,000.00 7 Point Repairs from MH E004 to E005 LS 1 $ 12,500.00 $ 12,500.00 8 4' ID Manhole EA 11 $ 6,000.00 $ 66,000.00 9 Rehabilitate/Replace Manhole EA 3 $ 6,000.00 $ 18,000.00 10 Point Repairs on Manhole EA 3 $ 3,000.00 $ 9,000.00 11 Railroad Access LS 1 $ 10,000.00 $ 10,000.00 12 Install New Tap & Service EA 1 $ 1,500.00 $ 1,500.00 13 Reconnect Service Lines EA 25 $ 400.00 $ 10,000.00 14 Asphalt Roadway Repair SY 450 $ 80.00 $ 36,000.00 15 Concrete Driveway Repair SY 275 $ 100.00 $ 27,500.00 16 Gravel/Soil Driveway Repair SY 150 $ 15.00 $ 2,250.00 17 By Pass Pumping Day 7 $ 1,500.00 $ 10,500.00 18 Erosion Control LS 1 $ 25,000.00 $ 25,000.00 Construction Sub -Total PRELIMINARY Contingency Engineering/CA/CO Easement Survey/Mapping Total Project Cost $ 605,250.00 $ 87,800.00 $ 96,900.00 $ 8,000.00 $ 797,950.00 Notes: ' - Unit costs and engineering fees for project bid in 2019; project scheduled for 2018-19 in CIP. 11 THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 OPINION OF PROBABLE PROJECT COST Abandon Lake Shore & Boardwalk Pump Stations Benson, NC CAPITAL IMPROVEMENTS PLAN TWC No. 2293-CI ITEM NO. DESCRIPTION UNITS TOTAL QUANTITY UNIT COST EXTENDED TOTAL 1 8" C900 PVC Sanitary Sewer, Depth 0'-5' LF 250 $ 50.00 $ 12,500.00 2 8" C900 PVC Sanitary Sewer, Depth 5'-10' LF 125 $ 75.00 $ 9,380.00 3 8" C900 PVC Sanitary Sewer, Depth 10'-15' LF 75 $ 100.00 $ 7,500.00 4 8" C900 PVC Sanitary Sewer, Depth 15'-20' LF 475 $ 140.00 $ 66,500.00 5 8" C900 PVC Sanitary Sewer, Depth 20'-25' LF 500 $ 200.00 $ 100,000.00 6 8" C900 PVC Sanitary Sewer, Depth 25'-30' LF 725 $ 300.00 $ 217,500.00 7 8" SDR35 PVC Sanitary Sewer, Depth 0'-5' LF 25 $ 40.00 $ 1,000.00 8 8" SDR35 PVC Sanitary Sewer, Depth 5'-10' LF 275 $ 55.00 $ 15,130.00 9 8" SDR35 PVC Sanitary Sewer, Depth 10'-15' LF 550 $ 75.00 $ 41,250.00 10 8" SDR35 PVC Sanitary Sewer, Depth 15'-20' LF 150 $ 100.00 $ 15,000.00 11 4' ID Manhole, Depth 5'-10' EA 2 $ 4,000.00 $ 8,000.00 12 4' ID Manhole, Depth 10'-15' EA 5 $ 7,500.00 $ 37,500.00 13 4' ID Manhole, Depth 15'-20' EA 4 $ 11,500.00 $ 46,000.00 14 4' ID Doghouse Manhole, Depth 5'-10' EA 2 $ 5,000.00 $ 10,000.00 15 5' ID Manhole, Depth 20'-25' EA 3 $ 13,500.00 $ 40,500.00 16 5' ID Manhole, Depth 25'-30' EA 2 $ 17,500.00 $ 35,000.00 17 Anti -Seep Collar EA 2 $ 1,500.00 $ 3,000.00 18 Abandon Existing Pump Stations EA 2 $ 12,500.00 $ 25,000.00 19 Remove and Dispose of Existing Sewer LF 400 $ 15.00 $ 6,000.00 20 Remove and Dispose of Existing Manholes EA 2 $ 1,500.00 $ 3,000.00 21 Reconnect Existing Sewer Services EA 4 $ 400.00 $ 1,600.00 22 New Sewer Services EA 3 $ 2,000.00 $ 6,000.00 23 Asphalt Roadway Repair from Open Cut Install SY 75 $ 80.00 $ 6,000.00 24 Asphalt Overlay (1.25" S9.5A) SY 500 $ 35.00 $ 17,500.00 25 Concrete Driveway Repair SY 50 $ 100.00 $ 5,000.00 26 Gravel Driveway Repair SY 75 $ 15.00 $ 1,130.00 27 Erosion Control LS 1 $ 60,000.00 $ 60,000.00 PRELIMINARY Construction Sub -Total $ 796,990.00 Contingency (15%) $ 119,600.00 Engineering/CA/CO2 $ 99,700.00 Legal/Easement Acquisition $ 20,000.00 Project Cost Inflation (3% per year)' $ 315,900.00 Notes: Total Project Costi $ 1,352,190.00 - Unit costs and engineering fees for project bid in 2019; project scheduled for 2028-29 in CIP. 2 - Will only require minor engineering design, as design is already complete. Bidding/CA/CO required when project moves forward. TV THE WOOTEN COMPANY 120 N. Boylan Ave Raleigh, NC 27603-1423 919.828.0531 fax 919.834.3589 F-0115 Section VL4 Contingency Plan Town of Benson - Pump Station Contingency Plan The following information describes steps to be taken in the event of a sewer lift (pump) station failure A Power Failure Lift station power failures are reported to the collections system ORC via SCADA system call out. The ORC or on call employee will respond immediately to all SCADA system call outs involving a lift station failure. Emergency generators are available on site at each of the town's lift stations except the following locations: Location Power Failure Contingency 1 Lakeshore Call Septic Hauler 2 Boardwalk Call Septic Hauler 3 King Call Septic Hauler 4 Burris Call Septic Hauler 5 Wall Activate By-pass 6 Westridge Activate By-pass The ORC or on call employee will remain on site until power is restored. B Pump Failure Each of the town's 11 lift stations are equipped with duplex pumps and the ability for each single pump to meet peak flow demands. The 2"d pump at each location is considered the back up pump in the event of a single pump failure. In addition to each lift station having two pumps on site, the following locations have a 3rd pump available in the public works inventory: 1 S Walton Ave 2 Carolyn Drive 3 King Circle 4 Westridge 5 Boardwalk Ave C Pipe Leak Upon discovery of a leaking force main pipe at a lift station, the following septic hauling companies will be notified to respond until repairs are completed: 1 Smales Septic (Jeff Smales) 919-917-0683 2 Reliable Septic (Jessee Atkins) 919-207-9000 Section L6 omprehensive 40 ection System Map I■ Z O f z I ■ ♦'♦ ♦ ■ I / ' G PJ r� D I • �o'� 01 �. 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' - __ ♦ • / S9-Fp�'s c0 l NCNB ,♦ X � W �• ,`,C�,•S�ryA,yt,,' ' ■ ■ 4 • T RO •,04,Ryp<� O 2� WO ALL OD E . / - ■ ■ 4�OQ DAIRYRI) 3 sPDRatipn r Q ; .. .. �� .. : $XAraDON C. BENSMED/CAL Ppk� w� aar:�ryAry AREA A CENTER PS �c vQ�. o ---------- W , ■ . �/ ■ / 4 o: o 01 % / y� ■ • TAR The Wooten Company GIS • "� � _ _ TARHEEL.RD makes every effort to produce and publish maps using the most current and accurate information possible, however the maps are strictly for planning purposes \ only. a maps are compiled from recorded deeds, plats, an other public an private records and data. Users of the maps are hereby notified that the aforementioned public primary information sources should be consulted for verification of the information on this map. The Wooten Company assumes NO responsibility for the information contained on the maps unless Q 3 ------L the map is signed and sealed by a licensed Professional Land Surveyor. Please contact the GIS Group at (919) 828-0531 or tcohan@thewootencompany.com for data source information. FYRD r u Z z a'• U