Loading...
HomeMy WebLinkAbout20081609 Ver 1_Modifications_20090921ay 1P o8-Ito Dot U2' ENGINEERING DEPARTMENT PALI 7 September 18, 2009 D ??(? (off DWQ Wetlands Unit SEP 2 1 2009 1650 Mail Service Center DENR-WATER QUALITY Raleigh, NC 27699-1650 WETLANDS ANDSTOKmATERBRANCM Attn: Cyndi Karoli Re: NC DWQ 401 Water Quality Certification - MODIFICATION Bachelor Branch Interceptor and Pump Station Elimination Project Dear Ms. Karoli, Please find five copies of the 401/PCN Water Quality Certification MODIFICATION Application submittal for the Bachelor Branch Interceptor and Pump Station Elimination Project enclosed. The purpose of this MODIFICATION is to revise the method of installation and type of impact at Crossing #1-1. The original 404/401 Application showed this crossing to be a bored crossing. Since the completion of the survey and design, the creek has eroded significantly in this area. Because of this erosion, the sewer main will be exposed in the bottom of the creek. As a result of this change, Crossing #1-1 will be installed using the open-cut method, and the sewer main will be encased in concrete, resulting in a permanent impact to the bottom of the stream. Since the maintained corridor is less than 10 feet, and the buffer disturbance is only 32 feet in length. the buffer impacts are exempt. If you have any questions, or need any other information concerning this application, please do not hesitate to contact me directly at 919-469-4335 or by email at iarrod. buchanan(a)-townofcary.org. Sincerely, Jarrod A. Buchanan, P.E. Project Manager Enclosures TOWN Of CARY 316 North Academy Street -Cary, NC 27513-PO Box 8005-Cary, NC 27512-8005 te1919-469-4030 - fax 919-460-4935 www.townofcary.org Q¢c?r?anr?? SEP P 1 2009 NC DWQ 401/PCN ,x ,µ,, MODIFICATION APPLICATION 1' AI FOR BACHELOR BRANCH INTERCEPTOR & PUMP STATION ELIMINATION PROJECT PROJECT NO. SW 1095 SEPTEMBER 2009 TOWN OF CARY WAKE COUNTY, NORTH CAROLINA MAYOR: HAROLD WEINBRECHT, JR. DEPUTY TOWN CLERK: KAREN GRAY TOWN MANAGER: BENJAMIN T. SHIVAR DIRECTOR OF ENGINEERING: TIM BAILEY, P.E. PCN MODIFICATION APPLICATION FOR DWQ 401 WATER QUALITY CERTIFICATION ' FOR BACHELOR BRANCH INTERCEPTOR AND PUMP STATION ELIMINATION PROJECT TABLE OF CONTENTS SECTION 000 COVER SHEET ' SECTION 100 TABLE OF CONTENTS SECTION 200 PCN SUBMITTAL CHECKLIST SECTION 300 PCN APPLICATION ' EXPRESS REVIEW ACCEPTANCE LETTER - 9/8/2009 COPY OF CHECK ATTACHMENT 1 PROJECT DESCRIPTION ATTACHMENT 1-1 LIVE STAKE DESCRIPTION ATTACHMENT 1-2 LIVE STAKING DETAIL ATTACHMENT 1-3 IMPACT MAP SHOWING DETAIL OF MODIFICATION AREA TABLE 1 MODIFIED STREAM IMPACTS TABLE ATTACHMENT 2 IMAGE OF STREAM CONDITIONS WITH PROPOSED MODIFICATIONS ' ATTACHMENT 3 STANDARD CONCRETE ENCASEMENT FOR STREAM CROSSING DETAIL ATTACHMENT 3-1 MODIFIED CONCRETE ENCASEMENT FOR STREAM CROSSING DETAIL ' ATTACHMENT 4 WATER QUALITY CLASSIFICATION DOCUMENTATION ATTACHMENT 5 VICINITY MAP ATTACHMENT 6 SITE PLAN MAP ' ATTACHMENT 7 STREAM CROSSING LOCATION MAP ATTACHMENT 8 NRCS SOILS MAP - SHEET 45 ' ATTACHMENT 9 SHEET PP7-15 OF PLANS Project No. SW 1095 Section 00100-1 PCN Application for DWQ 401 Water Quality Certification Version 1.4 January 9, 2009 401 Oversight/Express Permitting PCN Submittal Checklist E/The application fee (Checks may be made out to "N.C. Division of Water Quality" - $240.00 for 401 Water Quality Certification with minor impacts - $570.00 for 401 Water Quality Certification with major impacts Express Review Fee (Amount requested on Acceptance Letter) Five (5) complete and collated copies of the PCN Application and supporting documentation (instead of providing 5 copies of the full size plans you may provide two copies of full size plans along with three copies of 11 X 17 plans) ? Stormwater Management Plan (if applicable - see PCN Form Help File Section E) 1) Please provide three (3) copies of the stormwater management plans along with all supporting information pertaining to this project including the following: a. Entire site development/layout plans delineating all drainage areas; b. Design calculation sheets for all proposed BMP(s) sized for both on-site and off-site drainage; c. BMP supplements for each proposed BMP and Required Items Check List (http://h2o.enr.state.nc.us/su/bmp forms.htm) along with all required items; d. A Notarized Operation & Maintenance Agreement for each stormwater management facility; e. Detailed construction drawing sheets shall include (i) Erosion and sediment control plans; (ii) Installation and planting schedules for the proposed BMPs; (iii) Appropriately scaled plan views and cross sectional details of all BMPs and associated components - inlet and outlet structures, forebay, respective zones and pertinent elevations. ? If your project is located within a State implemented Riparian Buffer Rule Area, submit the VA following along with site plans and PCN form: 1) Three (3) copies of the details for on-site diffuse flow provisions, (refer to http://h2o.enr.state.nc.us/su/bmp_jorms.htm). ? DWQ Stream Determination Forms for streams on property and DWQ determination 0A, letter for wetlands or streams (if applicable). The following is the most critical of all the information that you must provide. The quality and detail of the information will often determine the expeditiousness of the review. The following is a checklist of the types of pertinent information required at a minimum: Maps and Plans: Id The most recent version of the 1:24,000 USGS Topographic Map - Please cleanly draw or delineate the site boundaries on the topographic map. [vl The most recent version of the bound and published County NRCS Soil Survey Map - (required for projects within the Neuse River Basin, Tar-Pamlico River Basin, Randleman Lake Watershed and the Catawba River Basin, also recommended for all projects) - Please clearly delineate the site boundaries, etc. on the map. If the delineation obscures any of the features, it is recommended that a clean copy be provided. Copies of the Version 1.4 January 9, 2009 ' current soil survey and/or soil survey map sheets can be obtained from the local NRCS County Office (http://www.nc.nres.usda.gov/). GIS soil layers are not acceptable. [ Vicinity map - Please clearly mark the location and approximate boundaries of the property ' and project on the map. Please indicate north arrow and scale. Please include applicable road names or State Road numbers. [(The Site Plan - The most critical map to be provided is the site plan. You must provide full sized plans. The following is the minimum list of plans that are typically needed. dpre-construction/Pre-existing conditions - This sheet (or sheets) must include: All jurisdictional and non-jurisdictional wetland, stream, water features, State regulated buffers (delineated into Zones 1 and 2) • Topographic contours with elevations • Any existing structures and impervious areas • Existing utility lines and easements • Existing roads, culverts, and other pertinent features • North arrow and the scale (1":50' scale is recommended). ' [Proposed conditions - This sheet (or sheets) must include: • All jurisdictional and non-jurisdictional wetland, stream, water features, State regulated ' buffers (delineated into Zones 1 and 2) • Lot layout (if a subdivision or commercial development is proposed) - lots must be developable without further impacts to jurisdictional and non-jurisdictional wetlands, ' streams, water features, and State regulated buffers. Building envelopes must be provided when streams, wetlands, riparian buffers, or water features exist on a lot • All built-out structures and impervious cover ' • Final grading contours with elevations • All utilities and easements (including septic fields on all lots within 100 feet of stream, wetland, or water features - if applicable) • Impacted areas - these should correspond with the Impact numbers listed on your PCN ' form. dDrainage Plans - Final drainage plans must include the following: ' • Locations and pertinent elevations and sizes of the stormwater collection system and drainage ways • All inlets and outlets must also be shown with pertinent elevations (All outlets to wetlands must be at a non-erosive velocity, generally less than 2 ft/sec during the peak flow from the 10-yr storm) • Scaled stormwater BMPs must also be indicated as required by DWQ rules and policies ' • In certain cases (see Section E of PCN form), final stormwater management plans must also be provided (see Stormwater Management Plan Checklist) ['Proposed Impacts - All impacts to jurisdictional and non-jurisdictional wetland, stream, ' water features, and State regulated buffers must be shown and labeled on the site plans at a scale no smaller than 1" = 50'. All excavation, fill, flooding, stabilization, and other impacts ' that will be conducted in or near jurisdictional and non-jurisdictional wetland, stream, water features, and State regulated buffers must be indicated. Please provide cross sectional details showing the provisions for aquatic life passage (burial of culvert 20% for culverts <_ 48 inches, and 1-foot for culverts > 48 inches). Version 1.4 January 9, 2009 Wetland Impacts: Precise grading and final elevation contours must be provided. Existing vegetation and any clearing must be specified. All subsurface utility lines must indicate the location of anti-seep collars. Construction detail for anti-seep collars must be provided. Roadway or other crossings of riparian wetlands may require floodway culverts to maintain existing hydrological conditions. Plans should show that the hydrology of remaining wetlands on the site will be maintained. Stream Impacts: Stream impacts must be clearly shown on the plans. The centerline as well as the banks of the stream must be surveyed or located by GPS for the portion of the stream to be impacted. The inlet and the outlet of all culverts should be aligned with the stream as much as possible. Inlet and outlet elevations and streambed elevations should be indicated. Any inlet or outlet protection must be shown and enumerated on the impact map(s). ? For bottomless culverts or other spans, a vertical cross section should be N/A • provided that shows the minimum distance from each span to each stream bank, the stream cross section, the height of the span above the stream and the minimum distance from the edge of each footer to each stream bank. Additionally, please provide a signed and sealed geotechnical report of subsurface soils at the proposed bottomless culvert location. The report must comply with the Division of Highways - Guidelines for Drainage Studies and Hydraulic Design, prepared by A.L. Hankins, Jr., State Hydraulics Engineer - 1999. ? Multiple culverts or sectioned box culverts typically require the use of sills, off- setting or other means to match the cross section of the existing stream (in order NA- to maintain stream stability and provide aquatic life passage). A vertical cross section of the culverts should be shown overlain with the up and downstream stream cross section including the stream flood-prone area. ? Impacts associated with dam construction must indicate and enumerate all fill /A _ associated with the dam footprint, spillway and any bank stream bank N' stabilization. The length of stream impounded must also be indicated and enumerated. 0' V4AT?gPG 1 IV_?•?r-i O liii, r _< &)L? 0$- it* Oak Y2-, Office Use Only: Corps action ID no. DWQ project no. Form Version 1.3 Dec 10 2008 Pre-Construction Notification (PCN) Form A. Applicant Information 1. Processing 1 a. Type(s) of approval sought from the Corps: ? Section 404 Permit ? Section 10 Permit 1 b. Specify Nationwide Permit (NWP) number: NWP 12 - Issued - MODIFICATION to SAW 2006-40250-292 also SAW 2006- 20411 or General Permit (GP) number: 1c. Has the NWP or GP number been verified by the Corps? ® Yes ? No 1 d. Type(s) of approval sought from the DWQ (check all that apply): ? 401 Water Quality Certification - Regular ? Non-404 Jurisdictional General Permit ® 401 Water Quality Certification - Express ? Riparian Buffer Authorization 1 e. Is this notification solely for the record because written approval is not required? For the record only for DWQ 401 Certification: ? Yes ® No For the record only for Corps Permit: ? Yes ® No 1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu fee program. ? Yes ® No 1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h below. ? Yes ® No 1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No 2. Project Information 2a. Name of project: Bachelor Branch initerceptor and Pump Station Elimination Project - SW 1095 2b. County: Wake 2c. Nearest municipality / town: Cary 2d. Subdivision name: N/A 2e. NCDOT only, T.I.P. or state project no: N/A 3. Owner Information 3a. Name(s) on Recorded Deed: Town of Cary 3b. Deed Book and Page No. Book 13349, Page 2720 3c. Responsible Party (for LLC if applicable): N/A 3d. Street address: 108 Panoramic Court 3e. City, state, zip: Cary, NC 27519 3f. Telephone no.: 919-469-4335 3g. Fax no.: 919-388-5806 3h. Email address: jarrod.buchanan@townofcary.org Page 1 of 11 PCN Form - Version 1.3 December 10, 2008 Version 4. Applicant Information (if different from owner) 4a. Applicant is: ? Agent ? Other, specify: Department within Town Government 4b. Name: Town of Cary - Engineering Department Attn: Jarrod A. Buchanan, P.E. 4c. Business name (if applicable): Town of Cary 4d. Street address: P.O. Box 8005 4e. City, state, zip: Cary NC 27512-8005 4f. Telephone no.: 919-469-4335 4g. Fax no.: 919-388-5806 4h. Email address: jarrod.buchanan@townofcary.org 5. Agent/Consultant Information (if applicable) 5a. Name: 5b. Business name (if applicable): 5c. Street address: 5d. City, state, zip: 5e. Telephone no.: 5f. Fax no.: 5g. Email address: Page 2 of 11 PCN Form - Version 1.3 December 10, 2008 Version B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no. (tax PIN or parcel ID): 0734336881 - MODIFICATION area only 1 b. Site coordinates (in decimal degrees): Latitude: 78.88611 Longitude: - 35.79389 (DD.DDDDDD) (-DD.DDDDDD) 1 c. Property size: 0.316 acres 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to Bachelor Branch proposed project: 2b. Water Quality Classification of nearest receiving water: WS-IV; NSW 2c. River basin: Cape Fear 3. Project Description 3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application: Land use in the vicinity of the site is mixed. The majority of the adjacent property is undeveloped at this time, with only a handful of residential homes in the general area. At the northeast end of the site, is the Highcroft residential subdivision. At the northwest end of the site, is the Town of Cary's Thomas Brooks Park, with baseball fields, soccer fields, playgrounds, and parking lots. On the east side of the site, near Station 255+69.86 on Sheet PP4-14, is the new Toscana residential subdivision, which is presently under construction. The construction site for the Bachelor Branch Interceptor is adjacent to Bachelor Branch. 3b. List the total estimated acreage of all existing wetlands on the property: In the area of the modification, there are no wetlands. For the entire project, there are approximately 0.75 acres. Of the 0.75 acres, there are 0.00 acres of permanent impacts, and 0.65 acres of temporary impacts occur in a previously disturbed area, where there is an existing sewer main. 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 290 3d. Explain the purpose of the proposed project: The purpose of the MODIFICATION is to change from a bored crossing at Crossing #1-1 to an open cut installation. This is necessary because the stream has eroded. This overall project is designed to allow the Town of Cary to meet its Jordan lake water allocation, inter-basin transfer commitments, and to provide for the abandonment of two waste water pump stations. This project meets Cary's local waste water management requirements, per its Master Plan. 3e. Describe the overall project in detail, including the type of equipment to be used: See Attachment 1. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / ® Yes E] No El Unknown project (including all prior phases) in the past? Comments: 4b. If the Corps made the jurisdictional determination, what type ? Preliminary ®Final of determination was made? 4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: Name (if known): Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. Page 3 of 11 PCN Form - Version 1.3 December 10, 2008 Version 5. Project History 5a. Have permits or certifications been requested or obtained for ® Yes ? No ? Unknown this project (including all prior phases) in the past? 5b. If yes, explain in detail according to "help file" instructions. See Attachment 1. 6. Future Project Plans 6a. Is this a phased project? ® Yes ? No 6b. If yes, explain. This is the final phase of the sewer related work for this project. The Town of Cary Parks and Recreation Department has plans to construct a greenway in the vicinity of the Bachelor Branch Interceptor Project. The construction of this greenway would be dependent upon issuance of a 404 Permit. Page 4 of 11 PCN Form - Version 1.3 December 10, 2008 Version C. Proposed Impacts Inventory 1. Impacts Summary 1 a. Which sections were completed below for your project (check all that apply): ® Wetlands ® Streams - tributaries ? Buffers ? Open Waters ? Pond Construction 2. Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. 2b. 2c. 2d. 2e. 2f. Wetland impact Type of jurisdiction number - Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact Permanent (P) or (if known) DWQ - non-404, other) (acres) Temporary T W1 ? P ®T M F, H, D ® Yes ? No ® Corps ? DWQ 0.0898 W2 ? P ®T M, E H, D ? Yes ® No ® Corps ? DWQ 0.6575 W3 ? P ? T ? Yes ? Corps ? No ? DWQ W4 ? P ? T ? Yes ? Corps ? No ? DWQ W5 ? P ? T ? Yes ? Corps ? No ? DWQ W6 ? P ? T ? Yes ? Corps ? No ? DWQ 2g. Total wetland impacts 0.7473 2h. Comments: M = Mechanized clearing; E = Excavation; F = Forested; H = Herbaceous; D = Disturbed. 3. Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted. 3a. 3b. 3c. 3d. 3e. 3f. 3g. Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact number - (PER) or (Corps - 404, 10 stream length Permanent (P) or intermittent DWQ - non-404, width (linear Temporary (T) (INT)? other) (feet) feet) S1 ? P ? T See Table 1 ? PER ? INT ? Corps ? DWQ S2 ? P ? T ? PER ? Corps ? INT ? DWQ S3 ? P ? T ? PER ? Corps ? INT ? DWQ S4 ? P ? T ? PER ? Corps ? INT ? DWQ S5 ? P ? T ? PER ? Corps ? INT ? DWQ S6 ? P ? T ? PER ? Corps ? INT ? DWQ 3h. Total stream and tributary impacts 235 3i. Comments: See Table 1. Page 5 of 11 PCN Form - Version 1.3 December 10, 2008 Version 4. Open Water Impacts If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of the U.S. then individually list all open water impacts below. 4a. Open water impact number - Permanent (P) or Temporary T 4b. Name of waterbody (if applicable) 4c. Type of impact 4d. Waterbody type 4e. Area of impact (acres) 01 ?P?T 02 ?P?T 03 ?P?T 04 ?P?T 4f. Total open water impacts 0.00 4g. Comments: Not Applicable. 5. Pond or Lake Construction If and or lake construction proposed, then complete the chart below. 5a. Pond ID 5b. Proposed use or purpose 5c. Wetland Impacts (acres) 5d. Stream Impacts (feet) 5e. Upland (acres) number of pond Flooded Filled Excavated Flooded Filled Excavated Flooded P1 P2 5f. Total 5g. Comments: Not Applicable. 5h. Is a dam high hazard permit required? 5i. Expected pond surface area (acres): 0.00 5j. Size of pond watershed (acres): 0.00 5k. Method of construction: Not Applicable. 6. Buffer Impacts (for DWQ) If project will impact a protected riparia n buffer, then complete the chart below. If yes, then individually list all buffer impacts below. If an impacts require miti gation, then you MUST fill out Section D of this form. 6a. ? Neuse ? Tar-Pamlico ? Other: Project is in which protected basin? ? Catawba ? Randleman 6b. 6c. 6d. 6e. 6f. 6g. Buffer impact number - Reason Buffer Zone 1 impact Zone 2 impact Permanent (P) or for Stream name mitigation (square feet) (square feet) Temporary T impact required? 61 ?P?T ?Yes ? No B2 ?P?T ?Yes ? No B3 ?P?T ?Yes ? No 6h. Total buffer impacts 6i. Comments: Not Applicable. Page 6 of 11 PCN Form - Version 1.3 December 10, 2008 Version D. Impact Justification and Mitigation 1. Avoidance and Minimization 1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. The proposed alignment presents the minimal negative environmental impacts. The majority of the alignment was placed 100 feet from the top of the creek bank. In one area, the sewer main will installed in an existing sewer easement, that was cleared over 25 years ago. The sewer main will be installed in the same corridor as the existing sewer main, decreasing the amount of new wetland or buffer impacts. In other areas, the alignment was shifted to go completely around existing wetland areas. All stream crossings have been designed to bridge the stream at an angle between 75° and 105° where possible. As part of the overall project, the Town has acquired and placed approximately 200 acres of land into permanent conservation easements. This includes establishment of 109 acres of riparian buffer protecting approximately 10,000 linear feet of White Oak Creek and its tributaries along both banks and an additional 1,600 linear feet along one bank. The Total permanent wetland impacts for the Bachelor Branch Interceptor are 0.0 acres. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Trenchless construction techniques will be employed where applicable, to further reduce environmental impacts. All stream crossings have been designed to bridge the stream at an angle between 75° and 105° where possible. The line will be installed using boring and jacking methods at Crossing #4. The construction corridor will be limited to 20, 25, 30, 35, 40 or 50 feet in width, and will be replanted in native vegetation. 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for ? Yes ® No impacts to Waters of the U.S. or Waters of the State? 2b. If yes, mitigation is required by (check all that apply): ? DWQ ? Corps ? Mitigation bank 2c. If yes, which mitigation option will be used for this El Payment to in-lieu fee program pro project? ? Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3a. Name of Mitigation Bank: Not Applicable. 3b. Credits Purchased (attach receipt and letter) Type Quantity 3c. Comments: 4. Complete if Making a Payment to In-lieu Fee Program 4a. Approval letter from in-lieu fee program is attached. ? Yes 4b. Stream mitigation requested: linear feet 4c. If using stream mitigation, stream temperature: ? warm ? cool ?cold 4d. Buffer mitigation requested (DWQ only): square feet 4e. Riparian wetland mitigation requested: acres 4f. Non-riparian wetland mitigation requested: acres 4g. Coastal (tidal) wetland mitigation requested: acres 4h. Comments: 5. Complete if Using a Permittee Responsible Mitigation Plan 5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan. Not Applicable. Page 7 of 11 PCN Form - Version 1.3 December 10, 2008 Version 6. Buffer Mitigation (State Regulated Riparian Buffer Rules) - required by DWQ 6a. Will the project result in an impact within a protected riparian buffer that requires buffer mitigation? ? Yes ® No 6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the amount of mitigation required. Zone 6c. Reason for impact 6d. Total impact (square feet) Multiplier 6e. Required mitigation (square feet) Zone 1 3 (2 for Catawba) Zone 2 1.5 6f. Total buffer mitigation required: 6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank, permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund). 6h. Comments: Page 8of11 PCN Form - Version 1.3 December 10, 2008 Version E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1 a. Does the project include or is it adjacent to protected riparian buffers identified ? Yes ® No within one of the NC Riparian Buffer Protection Rules? 1 b. If yes, then is a diffuse flow plan included? If no, explain why. ? Yes ? No Comments: Not Applicable. 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? Not Applicable % 2b. Does this project require a Stormwater Management Plan? ? Yes ® No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: No new impervious acreage proposed. 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, na rrative description of the plan: Not Applicable. ? Certified Local Government 2e. Who will be responsible for the review of the Stormwater Management Plan? ? DWQ Stormwater Program ? DWQ 401 Unit 3. Certified Local Government Stormwater Review 3a. In which local government's jurisdiction is this project? Not Applicable. ? Phase II 3b. Which of the following locally-implemented stormwater management programs ? NSW ? USMP apply (check all that apply): ? Water Supply Watershed ? Other: 3c. Has the approved Stormwater Management Plan with proof of approval been ? Yes ? No attached? 4. DWQ Stormwater Program Review ? Coastal counties ? HQW 4a. Which of the following state-implemented stormwater management programs apply ? ORW (check all that apply): ? Session Law 2006-246 ? Other: 4b. Has the approved Stormwater Management Plan with proof of approval been attached? ? Yes ? No 5. DWQ 401 Unit Stormwater Review 5a. Does the Stormwater Management Plan meet the appropriate requirements? ? Yes ? No 5b. Have all of the 401 Unit submittal requirements been met? ? Yes ? No Page 9 of 11 PCN Form - Version 1.3 December 10, 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1 a. Does the project involve an expenditure of public (federal/state/local) funds or the ® Yes ? No use of public (federal/state) land? 1 b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State ® Yes ? No (North Carolina) Environmental Policy Act (NEPA/SEPA)? 1c. If you answered "yes" to the above, has the document review been finalized by the State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval ®Yes ? No letter.) Comments: 2. Violations (DWQ Requirement) 2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ? Yes ® No or Riparian Buffer Rules (15A NCAC 2B .0200)? 2b. Is this an after-the-fact permit application? ? Yes ® No 2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s): 3. Cumulative Impacts (DWQ Requirement) 3a. Will this project (based on past and reasonably anticipated future impacts) result in ® Yes ? No additional development, which could impact nearby downstream water quality? 3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWQ policy. If you answered "no," provide a short narrative description. See Attachment 1. 4. Sewage Disposal (DWQ Requirement) 4a. Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. Not applicable. No new wastewater will be generated with this project. Page 10 of 11 PCN Form - Version 1.3 December 10, 2008 Version 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or ? Yes ® No habitat? 5b. Have you checked with the USFWS concerning Endangered Species Act ® Yes ? No impacts? ® Raleigh 5c. If yes, indicate the USFWS Field Office you have contacted. ? Asheville 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? NC DENR Natural Heritage Program Maps and Files. 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as essential fish habitat? T[:] Yes ® No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? See Environmental Assessment submitted as part of original 404/401 Application. 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation ? Yes ® No status (e.g., National Historic Trust designation or properties significant in North Carolina history and archaeology)? 7b. What data sources did you use to determine whether your site would impact historic or archeological resources? NC Department of Cultural Resources Files, Maps and Records. 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA-designated 100-year floodplain? ® Yes ? No 8b. If yes, explain how project meets FEMA requirements: There structures that are proposed in the floodway, are being offset by removing an existing structure that is greater in area. 8c. What source(s) did you use to make the floodplain determination? FEMA FIRM Map 0734J. Jarrod A. Buchanan (JJ ff &? ?)' I (b (2a:* Applicant/Agent's Printed Name pplicant/ gent's Signature Date (Agent's signature is valid only if an authorization letter from the applicant is provided. Page 11 of 11 PCN Form - Version 1.3 December 10, 2008 Version Q?? NC ENR I North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman ' Governor Director Secretary September 8, 2009 Wake County DWQ EXP#: 08-1609v2 EXPRESS REVIEW ACCEPTANCE LETTER ' Mr. Jarrod Buchanan, Engineering Dept. Town of Cary P.O. Box 8005 ' Cary, NC 27512-5005 Project Name: Bachelor Branch Interceptor and Pump Station Elimination Project (Modification) ' On September 4, 2009, the 401 Oversight/Express Permitting Unit of the Division of Water Quality received your request regarding a project known as "Bachelor Branch Interceptor and Pump Station Elimination Project" for acceptance into the Express Review Program. This letter advises you that your project will be accepted into the Express Review Program once the following items are received: 1) The application fee of $1,000.00 [for 401 Water Quality Certification modification with major impacts], made payable to the North Carolina Division of Water Quality]; 2) Five (5) complete and collated copies of the PCN Application (instead of providing five copies of the modified full size plans you may provide two copies of the full size plans along with three ' copies of the I i X 17); 3) One (1) copy of the completed PCN Submittal Checklist (htip://h2o.enr.state.nc.Lis/ncwetlands/documents/PCNCileckIist v1_4.doc); 4) One (1) data CD of full size plans in TIFF Group 4 format (black and white, not grayscale oi- color). If the plans are too large to store in TIFF format, they can be stored in PDF. A pre-application meeting (to include applicant) is optional prior to the submittal of your completed ' application package since your proposed modification is minimal and has been discussed over the phone. The clock for this project will not start until receipt of the completed application package and required fee are received. If the impacts are greater than indicated on the initial Interest Form and/or the services are different, you may be required to remit an additional fee. If you have any questions or wish to discuss these matters further please do not hesitate to call Lia Myott Gilleski at 919-733-9502. CBK/lmg cc: File copy 401 Oversight/Express Review Permitting Unit ' 1650 flail Service Center, Raleigh, North Carolina 27699-1650 Location 2321 Crabtree Blvd , Raleigh, North Carolina 27604 Phone 919-733-17861 FAx: 919-733-6893 Internet: httpJ1h2o.enr.slate.nc ushimellandsl Sincerely, -4 N. t It f?lz Cyndi Karoly, Supervisor 401/Express Review Oversite Unit One NorthCarolina Natla,ally bri Equal Opporlun ty' Af rmalive Action Employer TOWN OF CARY ' 316 N. Academy St. - P.O. Box 8005 ?f Cary, North Carolina 27512-8005 .,- ^-/A (919) 460-4948 CHEC K NO. G 1 UV 1 4 ' PO VOUCHER INVOICE DESCRIPTION • 1 1 09/08/2009 191108 PI5426 08-1609V2 MISC SERVICES 1,000.00 NCDENR 630526 • $*****1,000.00 TOWN OF CARY 316 N. Academy St. - P.O. Box 8005 Cary, North Carolina 27512-8005 (919) 460-4948 1_ PAY WACHOVIA 66-156 WACHOVIA BANK, N.A. 531 CARY, NC 27512 ONE THOUSAND AND 00/100 DOLLARS 275672 ' THIS DISBURSEMENT HAS BEEN APPROVED AS REQUIRED BY TO THE NCDENR THE LOC L GOVERNMENT BUDGET AND FISCAL CONTROL ACT ORDER 401 OVERSIGHT EXPRESS REVIEW ' OF PERMITTING UNIT 1650 MAIL SERVICE CENTER TREASUREF RALEIGH NC 27699-1650 II¦27567211' i:053101560:2079900L2066611• 10 ATTACHMENT 1 Bachelor Branch Interceptor and Pump Station Elimination Project Modification Description The purpose of this MODIFICATION is to revise the method of installation and type of impact at Crossing #1-l. The original 404/401 Application showed this crossing to be a bored crossing. Since the completion of the survey and design, the creek has eroded significantly in this area. Because of this erosion, the sewer main will be exposed in the bottom of the creek. As a result of this change, Crossing #1-1 will be installed using the open-cut method, and the sewer main will be encased in concrete, resulting in a permanent impact to the bottom of the stream. The sewer main can not be lowered, because it is being installed between two existing manholes. The proposed abandonment of the Fieldstone Pump Station necessitates the installation of this sewer main. The location of the MODIFICATION area is at 108 Panoramic Court, down a gravel driveway, behind the Town of Cary's Fieldstone Pump Station. Please see the attached Vicinity Map. The Town of Cary was first made aware of the possible conflict between the sewer main and the stream invert on 8/25/2009, by the Contractor presently installing the Bachelor Branch Interceptor. The Town dispatched a Survey Crew to the field immediately to gather information. The information collected in the filed by the Survey Crew did indeed show that the creek had eroded significantly. Attachment 2 shows a detailed image of the existing conditions of the ' stream with the proposed sewer main and concrete encasement. The encasement will be installed similar to the attached Town of Cary Standard Detail 07000.14, Attachment 3. However, to minimize the impact to the creek bottom, while ensuring the integrity of the sewer ' main, 6-inches of concrete will be installed over the top of the pipe, 24-inches of concrete will be installed on both sides of the pipe, and 12-inches of concrete will be installed below the pipe. Attachment 3-1 shows the revised encasement detail. To prevent further erosion to the creek and ' its banks at this location and downstream, matting and live stakes will be installed at the crossing, to the full width of the disturbance, and downstream for 1 '/2 times the stream width ' (22-feet) for 33 feet. The live stakes will be installed as described and shown in Attachment 1-1 and Attachment 1-2 of this document. For a detailed view of the modification area showing the areas where the banks will be reinforced, please see the Impact Map - Attachment 1-3. Overall Proiect Description The purpose of this project is to install a gravity sewer main, consisting of 6,865-feet of 30-inch gravity sewer, 478-feet of 16-inch gravity sewer, 1,203-feet of 12-inch gravity sewer, 88-feet of 10-inch gravity sewer, and 53-feet of 8-inch gravity sewer. Approximately 8 acres will be ' disturbed during the installation of this gravity sewer line. The site is located in Cary, in the western portion of Wake County, North Carolina (see Vicinity Map). The installation will begin at a point approximately 400-feet east of the intersection of Beaver Dam Road (SR 1615) and Green Level West Road (SR SRI 605). There will be approximately 8,700-feet of sewer main installed with this project. Approximately ' 600-feet of the sewer main will be installed in existing easements, 2,650-feet will be installed in newly acquired easements purchased from residents, 420-feet of the sewer main will be installed in existing or proposed NCDOT right-of-way areas, 140-feet of the sewer will be installed in 1 Project No. SW 1095 PCN Application for DWQ 401 Water Quality Certification ATTACHMENT 1 existing Town of Cary right-of-way, and 4,880-feet of the sewer main will be installed on Town of Cary property. All of the sewer mains installed as part of this project will be ductile iron pipe. An independent contractor will install the sewer mains using a variety of equipment including a track hoe, end loader, back hoe, dump truck, and compactor. The trench in which the sewer mains will be placed will be as narrow as possible. This project will provide gravity sanitary sewer capability for land in the respective drainage basin. This project will also allow for the abandonment of the existing Fieldstone Pump Station, which would require expansion and improvements to remain in service, and will also allow for the abandonment of the Thomas Brooks Park Pump Station. Prior Proiect History The Town of Cary completed a Wastewater Collection System Master Plan in June 2003. This Master Plan identified the need for the West Cary Pump Station (WCPS) to be located along White Oak Creek in western Cary, North Carolina. The area was chosen, in conjunction with the locations for the necessary gravity interceptors. Construction of the WCPS paired with its Northern Force Main and the White Oak Interceptor (WOI) and the Bachelor Branch Interceptor (BBI) will allow for the abandonment of the Town's existing Fieldstone Pump Station, White Oak Creek Pump Station, and Thomas Brooks Park Pump Station, which are nearing their designed capacities. The WCPS will also provide additional capacity in the natural drainage basin and give the Town the ability to pump wastewater to and from other drainage basins. The Town currently has an Inter-Basin Transfer Certificate (IBT) that allows it to draw potable water from Jordan Lake in the Cape Fear River Basin and discharge its treated wastewater to the Neuse River Basin. Because the Town of Cary is nearing the upper limit of its IBT, there is a need to begin discharging up to 5-mgd of its treated wastewater back to the Cape Fear Basin as soon as feasible. The Durham County Triangle Wastewater Treatment Plant (DCTWWTP) discharges to the Cape Fear River Basin. Through an agreement between the Town of Cary and Durham County, the DCTWWTP will receive and treat a portion of wastewater flows from Cary, until a new water reclamation facility with a Cape Fear River Basin Discharge is constructed. Aiding in the Town's efforts to manage wastewater treatment capacity and the inter-basin transfer of water, the WCPS will initially pump wastewater north to the DCTWWTP, via two other pump stations, the Morris Branch Pump Station and the Kit Creek Pump Station. Eventually, the WCPS will pump wastewater south to a new water reclamation facility whose location has yet to be finalized. The Town has proposed to construct a single pump station, building it in three phases. The first phase will provide approximately 3-mgd of capacity to pump through the Northern Force Main. Phase 2 will provide approximately 33-mgd of capacity to pump through a future Southern Force Main, designed for build-out capacity. Phase 3 will provide approximately 45-mgd of capacity, proposed build-out, also through the Southern Force Main. The facilities required under Phase 1 have been or will be constructed as four independent projects as listed below: Project No. SW 1095 2 PCN Application for DWQ 401 Water Quality Certification ' ATTACHMENT 1 • West Cary Pump Station - Phase 1 - The West Cary Pump Station (WCPS) is the first phase of the overall project. • West Cary Pump Station Northern Force Main - a pipeline to convey wastewater from the WCPS to the existing Panther Creek Interceptor. • White Oak Interceptor - a pipeline to convey wastewater by gravity to the WCPS, allowing for the abandonment of the existing White Oak Creek Pump Station. • Batchelor Branch Interceptor - a pipeline to convey wastewater by gravity to the WCPS, allowing for the abandonment of the existing Fieldstone Pump Station and Thomas Brooks Park Pump Station. Currently, the first three portions of the overall project, including the West Cary Pump Station - Phase 1, the Northern Force Main, and the White Oak Interceptor, have been completed and are in operation. The Bachelor Branch Interceptor, which will convey flow to the WOI, is the fourth and final portion of this overall project. Given the high demand for developable land in western Wake County and the severe limitations for on-site wastewater treatment options, coupled with the need to protect water quality in a nutrient-sensitive reservoir, a centralized wastewater collection and treatment system is the most rational solution that will accommodate the development types and densities indicated in the Town of Cary's growth management plan. Because most of the potable water produced at the Cary-Apex Water Treatment Plant is used and discharged in the Neuse River basin, NC-DENR advised Cary and other western Wake County communities that future water and wastewater planning must minimize further inter-basin transfer. The following documents pertaining to the overall project, including the Bachelor Branch Interceptor and Pump Station Elimination Project have been included in this application: • Wastewater Collection Permit No. WQ0029217 for the following: o West Cary Pump Station - Issued October 19, 2005. o Northern Force Main - Issued February 13, 2006. o White Oak Interceptor - Issued June 14, 2006. o Bachelor Branch Interceptor - under review at this time. • USACE Nationwide Permit Number 12 (REISSUED) - SAW 2006-40250-292 also SAW 2006-20411, issued June 28, 2008. • USACE Nationwide Permit Number 12 - SAW 2006-40250-292, issued August 3, 2006, for all of these projects, including the West Cary Pump Station, the Northern Force Main, the White Oak Interceptor, and the Bachelor Branch Interceptor. • Erosion Control Permit - Bachelor Branch Interceptor - Issued October 1, 2008. • Erosion Control Permit (revised) - White Oak Interceptor & Greenway - Issued January 18, 2007. • Erosion Control Permit - White Oak Interceptor & Greenway - Issued February 22, 2006. • Erosion Control Permit - Northern Force Main - Issued December 7, 2005. • Erosion Control Permit (revised) - West Cary Pump Station - Phase 1 Pump Station - Issued June 27, 2007. Project No. SW 1095 3 PCN Application for DWQ 401 Water Quality Certification ATTACHMENT 1 • Erosion Control Permit - West Cary Pump Station - Phase 1 Pump Station - Issued October 7, 2005. • Watershed Classification Attachment Form WSCA 10/99 for the Bachelor Branch Interceptor and Pump Station Elimination Project only. • Watershed Classification Attachment Form WSCA 10/99 for the White Oak Interceptor and Pump Station Elimination Project only. • NCEEP Receipt for Payment for overall project- September 26, 2006. • NCEEP Invoice for overall project - September 14, 2006 • NCEEP Impact Acceptance Letter for overall project - April 20, 2006 • Finding of No Significant Impact (FONSI) - Issued August 11, 2005. • A copy of the Wastewater Treatment Service Agreement between Durham County and the Town of Cary for acceptance of the flow from the Town of Cary wastewater system into the Durham County Triangle Wastewater Treatment Plant until 2011 has been included. Cumulative Impacts Narrative Project Area Sub-basin The Bachelor Branch Interceptor (BBI) project area is located within the North Carolina Department of Environment and Natural Resources (NCDENR); Division of Water Quality (DWQ) watershed sub-basin (03-06-05), of the Cape Fear River Basin. This sub-basin is located in the Triassic Basin region of the Piedmont Ecoregion. Land use within sub-basin 03-06-05 is primarily forest. However, there are large urban areas located in the eastern upland areas, including Apex, Cary, Durham and Morrisville. There are 11 individual NPDES wastewater discharge permits in this sub-basin with a permitted flow of 32.4 MGD. The largest are the Durham County Triangle WWTP (12 MGD) and South Durham WRF (20 MGD). The B. Everett Jordan Reservoir (Jordan Reservoir) is the largest waterbody in this sub-basin. In 1983, all waters in sub-basins 03-06-01 to 03-06-06, including the Jordan Reservoir, received a supplemental classification of nutrient sensitive water (NSW) to acknowledge that the Jordan Reservoir could have water quality problems associated with excessive nutrient inputs from both wastewater discharges and runoff from the various land uses in the watershed. Surface water from the BBI project area drains via Bachelor Branch into White Oak Creek which drains directly into the Jordan Reservoir. We are not aware of any benthic or ambient water quality stations on Bachelor Branch, White Oak Creek, or any of their unnamed tributaries. In- stream habitat degradation is primarily associated with urban non-point sources. Sub-basin 03- 06-05 also contains many easily erodible soils. Consequently, streams in areas of urban land use are affected by sediment inputs and have large amounts of coarse sand. The Town of Cary commits to requiring on-site stormwater management measures for any additional development, when parcels adjacent to the interceptor are developed. There are no riparian buffers in this watershed. However, the Town of Cary has implemented an Urban Transition Buffer Ordinance that requires a 100-foot buffer on all USGS streams (perennial and intermittent) and 50-foot buffer on all streams mapped on the Wake County Soil Survey in the Cape Fear River Basin. Project No. SW 1095 4 PCN Application for DWQ 401 Water Quality Certification ' ATTACHMENT 1 Project Area Development ' The Town of Cary has carefully considered future build-out within the Southwest Area growth management region, where the proposed Bachelor Branch Interceptor is located. Within the vicinity of the project area, the Town of Cary is currently, or has recently, reviewed a number of ' site plans. These site plans are depicted on the figure entitled "Site and Subdivision Plans by Status," and listed in Table 5-1 (These two attachments were included in the original 401 Application). In addition, to the known site plans, there are several large parcels in the vicinity ' of the project area that are relatively undeveloped and could potentially be a location for future growth. ' As local populations grow within the sub-basin, there will be increased drinking water demands and wastewater discharges. While at the same time, there will be a loss of natural areas and an increase in impervious surfaces associated with possible residential and business construction. ' All of these factors have the ability to contribute to adverse impacts to the aquatic resources in the sub-basin. i Aquatic Resources Protection and Buffers To offset potential impacts to aquatic resources due to increase development, the Town of Cary has enacted an Urban Transition Buffer Ordinance that requires buffers within the Town's jurisdiction and extra-territorial jurisdiction (ETJ) (Land Development Ordinance - Chapter 7.2.14). The Urban Transition Buffer Ordinance exceeds the requirements of the Neuse River Basin NSW rules, by requiring 100 foot buffers on all USGS streams (perennial & intermittent) and 50 foot buffers on all streams mapped on the Wake County Soil Survey, including streams in the both the Neuse River and the Cape Fear River basins. Therefore, all future development within the project area's sub-basin, within the Town's jurisdiction, will be subject to the Town of Cary's buffer requirements. A guiding principle in the Southwest Area Plan is to minimize water quality impacts and protect the overall watershed. By adhering to the Urban Transition Buffer Ordinance, as well as other Federal and State regulations for the protection of surface waters, the potential for indirect and long-term cumulative effects should not substantially contribute to water quality and aquatic habitat degradation in the project area. Project No. SW 1095 5 PCN Application for DWQ 401 Water Quality Certification ATTACHMENT 1-1 LIVE STAKES (September 17, 2009) The following special construction guidelines are project specific and shall supersede any conflicting information stated elsewhere in the Contract Documents. PART 1 - LIVE STAKES Live stakes shall be planted on the repaired stream banks at Crossing #1-1. Table 1 identifies the allowable species and the rate at which they shall be planted. Table 1: Live Stake Species Scientific Name Common Name Density Live Cornus amomum Silky dogwood Stakes Salix serixcea Silky willow 4 stakes per square yard. Salix nigra Black willow Materials All plant material shall be harvested locally (within the same physiographic ecoregion and plant hardiness zone) and/or purchased from a local nursery. All live stakes shall be dormant at the time of acquisition and planting. Installation shall occur during the dormant season. Installation shall occur only between November 15 and May 15, unless otherwise approved by the Engineer. Live stakes shall be '/2 to 3-inches in diameter, 2 to 4 feet in length, angled on the bottom and cut flush on the top, with buds oriented upwards. During preparation, the basal ends of the live stakes shall be cleanly cut at an angle to facilitate easy insertion into the soil, while the tops shall be cut square or blunt for tamping. All side branches shall be removed from the live cutting, prior to installation, so the cutting is one single stem. Live stakes shall be determined to be living based on the presence of young buds and green bark. All side branches shall be cleanly trimmed. Construction Method Cuttings for live stakes shall be harvested in manner such that they are cut, immediately put into water to be soaked for ten days, and then planted immediately after the ten days are completed. Cuttings shall remain wet until they are planted. Outside storage locations should be continually shaded and protected from wind and direct sunlight. Live stakes shall be tamped perpendicularly into the finished bank slope with a dead blow hammer, with buds oriented in an upward direction. Stakes should be tamped until approximately 3/ of the stake length is within the ground. The area around each live stake shall be compacted by foot after the live stake has been installed according to the configuration presented in Attachment 1-2, Detail BB-10. One to two inches shall be cut cleanly off of the top of each live stake (with toppers) at an angle of approximately 15 degrees following installation. Any stakes that are split or damaged during installation shall be removed and replaced. ' Project No. SW 1095 1 PCN Application for DWQ 401 Water Quality Certification - MODIFICATION Basis of Payment Payment for "Live Stakes" shall be paid at the unit price bid per square yard as indicated in the Proposal. The unit price shall be full compensation for all labor, equipment, and materials required to furnish, install, and maintain the live stakes. a. Fifty percent of the total quantity of live stakes on the Itemized Proposal on the first partial payment estimate after which the initial planting has been completed and accepted. b. Twenty-five percent of the total quantity of live stakes on the Itemized Proposal on the first partial payment after the initial fifty percent has been paid and after any necessary replanting is complete. c. Twenty-five percent of the total quantity of live stakes on the Itemized Proposal after the project is one hundred percent complete and any necessary replanting is complete. END OF SECTION Project No. SW 1095 2 PCN Application for DWQ 401 ' Water Quality Certification - MODIFICATION N F- z w U Q H H Q L M F to y {? a W O O ? o G 1 o a O c z F o cr 2 09. z- a a (n I ZU5lwxt;? d C3 C3 (1) N Z W Z aay r- a ! ^I m< wNW:D ar z V) D ? L) o ?.N ?9 Q C In i 3 v X Z Z .- U O ? . W J F F I-__ z N I iv) FC :1w Cn U? _ I _ N m wWC) LL] wm aG > to (nv,a - li z? Z? UZ ZN pap U U U N Z 17O W !3 J a ? v 4 O , z z Q m3i ? ? ? ? ? ? ? ? ?• ? ? r ? ? ? ? ? ? ? 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 u u Qc7u IL Z J u 2L) ? U W _O d Q u > w 0 of u w ?m z C ? V LL L w wwoc U) u a ?u ?D ? z 0 F O °u J F Q z wu Of u CZ nw. G J W O Q J u U) Q O o O (n N 0) . C) rn LL ?Qrn of a Z?W G o u O W W o? w 5 w F U o j C N _ LL Z Q Ulu w J L w - Z C F W F Z ww.E U CO 0 Wo w U) :) LL a m z O ol? J Q W G W F- LL Q U) Q c co 0- 11 SwF- ? d H Z F a a Qa? a?> ?Fa: Q W a w Z Ca F- 2 ? W LL W ~ DL O Z I u7 O 0 0 c o o u7 c , c , N N cf) N O N M O N N W w U Q W W W W W W W W Z U U U U U U U U Q Q Q Q Q Q Q Q = ic? ? ? cn cn ? ? cn F- Z w J } N N N N ? ) ( ? a) m . 1 . E E E E E E m m Q c c C c a c a C U U U U U U w 2 N N N 0 N 0 N F- m m m m m m m m J O O O O m O co O < U U U U U O U O co 00 ca CO co CO co CO -C co _r_ co o o o o m o m o Z) Z) Z) w w W W W a. w F- m F- F- F- F- w F- o? ?t io ? i? co b0 a? c0 O ? M M M M iD i- F- r, f` ti F, F- ? vt ? ? v- It It v in in in 0 0 ?n Ln in Cl) M M co cM Cl) cM Cl) a) CO LO in cIJ ? O V 'IT ? M M M M M C') M M M M M LO LO LO LO LO LO LO LO 00 co 00 00 00 m0 m0 O ? r- r- ? r- r-_ 1- r- N N it ? u) r- r: On a. a. a- CL a a. a a a. a. a a a. a a a C O LO O O O 0 0 N (D O CD N O + w cn O ? ti M M M N M V V' 0 00 00 0 N N N N N N N 0 a. w F- C a. a. a. ? a o m m m a m X g g c w w g w w w W w i oZS N .- i N Q cn ;x M M N -- - zm U C C C C C C C C N N N .? u) .? 0 0 0 0 0 0 0 0 U U U U U U U U N M V cn 1 ,01 rl- m0 d) w -O c _ 75 O ccu O ,O U) 0O 0) U N N G 7 U) a) U) Q) U Q O p C C CL O m E m a) .o cp a) N 7 (n (D L U c O m m LLI m Y a c Q w C o m a) to w a) c O L -O (D O U w U) o En C w L N O v r- O v E m _ ? m ? 3 c U) a) O C co w v, m E E Q C UO L U) U X m ma 3 0 D cu Q) < a a) E o 3 U) m cu 16 O C U 2 j m a c C C E Mn o 0 3 c o'a O a 0 m U) c v L a) m L N N y U ? Y E U) -C c a i O m U L N ~ N m 2 F - m o w c o N a (j o a) V) o m io U (D Q) U o c c w E u.) a a°i E CO c L U (n ? O d vcc ui a) c V) C, 3 Y C O Y L) c CD 'U »= a) M m E E m . c0-).Q m p p N 1 c 0= M L Q) ? N 3 a) a U) w •L-. N 0 Co N C .= N N r C m O- 3 E O 3 0 E con U)i 0 ? m `ai w c c 0 E LO c m 'O j y m 0)aa)i? o o Co a)?0 (n - m °) C.,j -00 O O w a) 0 E L a E can N U =3 a) c U o am) , wZ 3 0 0)a O) m C Uj ?- fn O U) FE? m o 3 a a U EL0?3 o0'v? CU 0 c ? m u m v 0 m v mZ :5 - 2 w m Y CL m Z 0 c L 3 U) Z w m .. 8 _ O C :E C w a) C O () O m . 4) a c6 N O C :s U) _ p '3 0) co 12) C: 0 N N C L 'p - a) -C a) U5 L E ~ C O F- F- c U~ cc y Z1 ON.V)M E X65 U 0 0 n a 0 a 3 N U u, m N z :L. r. -or C'n ly) 2 W O a M? ,N 6` Y N w Li W- a ? W N ? I r I O M L r}.. 5N CJ L-1 Z c W u, N JO 7 X7 O ? ]O CJ ? 61 M PQ 4 CA N - M r , s ? N ? N N F r `rw? wf? C ?• ? 2 O , 2 QQ Q W J 1 ? N r+ r, 1? r i d" A. N ? ar x„ N c ?? i 1 s • , t Irk UI N 6` i m m m m m m r = = m m = = m M z w U O ^ z ? 0- z H °? w a W w o 9a ° _ a ?Q r z L) 0 Oz Q M ?w LLI W aU Q ?.. Q. 3 Z U W LLI L ?'• V1 .; W? ?Z D W O '(1-4 :. q .. D •, vi LLJ .:.?. lL F- Q Z O = W m LWi m V) w E-+ Q V W N L O LL, W W Z Z Q z O W J .-- N s N s N W U W # + D # # V) 4 ' a w LLJ V) w N3380 ?j # ` > ` . U) ## .., V) O O t # # Of V) U I Z in # O Z L) Li # # O O C D H U W w w w VW M Z i V Q ?- o W w CL r Ll V Q H m z () 3i co Q U W 0 A W v W w W Q _ Vr ' d LL Q W •Y ?Y :r v ` . Z O W .v • LLI a Of .• f' Q W Ly- (T?^ J',Y . Y. Z LZ Vl I w V ' ' W v ' - ..? 4 LLI I U c - Q ` M ?r ?4 V'. Y a l/. w Z w •y.:.?..Y m m W LAJ W Q V) U (= W W a/ W F O W Z ? Z 0 w z J N c f0 ° N- rrrTl??-?i F+i u U W Mi W i U NNVG 4 4 0 Z W 4 4 LLJ A33a0 i + '?^^ O ? ? vI # ?- U NN` G z w O ir N C) U LO U LZiI y 1 ? rl Q U W W V , • ? Y V - Y Y-. Y ? Y r a ` W =• J •Y YV Y 'r; ATTACHMENT 4 ' Name of Stream Description Curr. Class Date Basin Stream Index # White Oak Creek From 30ur>2e to a point C;NSW :2/01/83 Cape Fear 16-41-6-(C.3) 0.6 mile u1pstream of Jack Branch White Oak Creek From a point 0.6 mile WS-IV;NSW 08/03/92 Cape Fear 16-41-6-(G."1) upstream of Jack Branch to a point 0.3 Mile upstream Of N.C. Hwy. ?5; Jack Branch From source to a point C;NSW 12/01/63 Cape Fear 16-41-6-1-(1) 0.8 mile upstream of ' mouth Jack Branch From a 001f l- mi_e WS-IV;NSW 08/03/92 Cape Fear 16-41-6-1-(2) upstream of mouth to White Oak. Ctee'k. Bachelor Branch Frem source Lo a point C;NSW 12/01/83 Cape Fear 16-41-6-2-(1) 2.0 miles upstream of mouth ' Bachelor Branch From a oli. .0 miles , , $'L"r* , d 1?1Gr?f to WS-IV;NSW 08/03/92 Cape Fear 16-41-6-2-(2) alto r,,6i C era . Clark Branch From source to White WS-IV;NSW 08/03/92 Cape Fear !6-41-6-3 Jak Creek Rocky Fcra F,_anth From source to a poin* WS-IV;NSW 08/03/92 Cape Fear '6-41-6-4-(1) 0.3 mile upstream of N.C. Hwy. 751 Hec;or Creek From source to a point C;HQW 08/01/98 Cape Fear 18-]5-(0.41 1.1 miles upstream cf Harnett County SR 1415 NeiLis Creek. From source to a point C 08'01/98 Cape Fear 18-16-(0.3) (Neals Creek) 0.3 mile upstrear- of Wane Harnett County Line Nell-'S Creek Frem a point 0.3 mile WS-1v 08/01/98 Cape Fear 18-16-(0.?1 ( e,ls creek) up st.Leam.;Jf _ Wa<.e.HaIriet:. Cour,' Y Line ..o Cade tear love r YEnneth ;reek Froi s?ur tc C 08/01/98 Cape Fear 8-16-:-11) Wa. ? -Harm i"ounty Line if t'rcek From a point WS-:[V 08; 03/92 Cape Fear r i 1 uC tit rearn Gf cu F y k R ve r Frn . source South '; Sw 9, . _ ' 4 Cg-l, Fe a ,, l tt;e B, 11 - Riv( :r R ?er) (Popes a n,r, Rr.::c _ti i'ur.d) H..,tr:,.,:F.-? rn, • r"drrfolk ,:• _"y'?.? _ t :'e?,r _ --t;) B c?kt:::Ln Creek Fr?l f::tfo -"herd B 1 rape E'e,r Rai ad ckwat.ers of a r-: ik RI:chorn Creek. Fi,,-,, backw-;tors o' WS-`.1 "4 ,. ":qe, rear _?-.-i•-. u,rr'rs :.ake) 1, 1 lake to dam .-at. Harr-,s Lake ,??••??,, ?- S ? 1 ( tS toc Page 2 of 13 2009-08-29 07:08:41 l lGt7 5(? i ' 9/J?(M--Peek NPS?7ea tr'A o Moue = = = mm --m = = = = = = = = m = m = = .L33d 000' L 005 O 80.Ld33'83.LNI HON`v ae 80--13HOVEI OI.LvoI3Ila11 ,uI`Ivntj 83.Lb'M L ov oMa dVW NV-lcJ 311S I NOLLVIS dwnd 3NOISa-13I,1 L - L # ONISS02J::) V188 NOIIVOldlaOW IT 31N1 H I ? 41 Co CO 10 3NOlSMONNV n3HOva 021 1S31M 13A31 N33NO NOIIVJ.S dwnd \ }Ri`dd SMOO2:l8 -WOI I I \a?a'1 Uaa,`J }sa M peoZ! HO,.Ld3OH31.Nj H3N` He HO-13H:Dve NOI.LV:DIdIIH3:DA i.I`Ivno H3.LVM L 017 OMa dVW JNISSOHO WV3?JIS '. i g# NISVB ' puepaM V# NISVB f 5# SNISSON ? 1 t r Z'£# NISVB 8 . b# ONI 080 Z-E# ONISSOa:) ?` easy _ puepaM 133 £# NISVB iYIglo? BJnFj l-£# SNISSOHD /1 Ap c,,. ?MFO a '!?a uolue?8 - i ? Z# NISVB eeiv Bue18 b ?ni !d Pu IlaM ti`r?I pue IOM 3 4 Wei Z# ONISS02fO PUCROM l-t # ONISS08Z) Z- l # OMSS063 V I # SNISS080 r i ?? doN vaa??J J \G 1\I p,?o? _a C? C r dVW NOIJLVOOI ONISSONO WV3HjLS 0 ?Ld33H3LN HONVUS H013HOVS I i OVBSi T ale:)S (qd iaays suior) z c Z 2 N Q Z_ J O Q U 2 f- O Z Z O U w Y Q w ((77 laays 'jam sutof) w i u u m ~ E PR®.T~CT z ~ I ~ - NOW OR FORMERLY i ~ oo THOMPSON, JOSEPH & JULIE NUW OR FORMERLY ~ \ ~ ~ ~ ~ 1129 TAMWORTH HILL LN ZEIGLER & COMPANY 319- ~r~+ 9 ! " aYdAo ~®o ~IoG)4 ~ C-~ 7I I~P~ ~ - ~ ill I r ~ f'?U v I ~ I`1C ;i95 ` j t~ C+1 Pir,l 0~,~-t 4.. I ; z Dg I7lal PG 001 z 1 7 ~1 I ; ail / / / / r m ~ PIN~f 0l34~-11,3-34-=b755 1t~G ~)R roRrJlr R 'r I t ~ 1=I L ! VERIFY INU[RT OF LXIST. - i : V 1 r~+ L ~ - / / i E,t~ pE ~~k CASH, KEVIN ~ ~ IM ( L E M E MH-G - _ ~ ~ E MH -1 PRIOR I O REMOVAL ' ~ ~ E Mu F ~ ~ ~ ~ ~ ~ ~ ''n - ~ ~ 5872 HIGFIC J~~ R ~ ~ ~ f" (TO NE ABANDONED / t- ) I ~ (TO t3C ABANDONED) i~ / ~ i / , ' / ~ ~ ` ~ ~ ~ - _ ~ = ~AR~~J ' 2 a^l . 5'>15 ~ ~ ~ ~ I ~ ~ i TOP=308.73 ~ ~ ~ - _ ~ ~ ' ~ A \ - _ ~~"~7 ~ G 05 r ~ I V ~ \ / T01 365.22 A ? _ , _ ~ ~ INV.IN-294.87 i ~ ~ ~ / \ ~ \ ~ ~ ~ PIN ~ U7~ S-~ ~ ~I I I ~ 1 / 3 / / J INV.1N=?93.85 \ / ~ / i%~' ~ ~ - ~ 4- 10 I 8;.• \ INV.OUT=294.87 / f' \ / ~ , ; ~ ~ \ ' ~ , ` / ~ INV.OUT=7.93.80 \ \ 0_, , / _ v MI-f-B~~- 1, STA. 600+87.62 ~ / , ~ ~ \ E-MH- / ~ / ~ ~ ~ / 3 v V ~ ~ ? ~ ~ ~ ~ ~ o ABANDON SEWER MAIN- ~ i'~~ ~ ~ ' / ~ 7 j v v PROVIDE A STANDARD 5-ET. DIAMETER / ~ _ (TO BE REPEALED ~ ~ / j ~ r _ ~ / ~ ~ M ~ - c - ~ \ ~ NOW OR FORMERLli / HIGHCROFF COAP,46VdyzA~SOC. IJyLr'~/~ / ~ - - v ~ PRECAST CONCRETE MANHOLE WITI I A ~ ~ ~ ~ x BY MH-33-I) / PER SP C'fEICATION~ ~ ~ ~ ~ / ~ ~ / ~ \ / a TOP=31321 / / _ ~ ~ ~ i ~ i _ v v \ TYPE-1 STANDARD RING & COVER. \ . ~ / ~ I ~ ~ INV.i - / _ - ~ I •60 133 TRIANGLE TfADExbR. NOTE: ~ ~ 308.1 \ - ~ N(N)-29s86 ~ _ f~VlX= 0 44 ~ ~ 0 - ' \ SEE DETAIL o iaoo.ol & 07000.03. ~ " 1~ = ; ~ ~ ( I i ~ o v I _ _ ~ _ l / ~ v ~ ~ ` ~ / -fAl =~Q& 59` \ (I ~ INV.IN(w)-295.2, - - = v ~ ~ ~ ~ 3 1 '44 r l CARY, NO 77/~J'3,f}yi84 ANY PORTIONS OF STREAM / ( DB 111s8~p s BANK DISTURBED IN RELATION / _ \ ~ . - z I • ~ OU 295.16 0 ` ~ ~ \ 1sER P °~C3f 34--606 TO CROSSING 1-1 SHALL BE ~ ~ - J ~ V ~ ~ `A - ' ~ _ ~ VA AAA -EXISTING \ RESTORED PER SECTION 21000 FENCE ` OF THE CONTRACT DOCUMENT! v \ ~~a -E ST. 1o'~vc`, s ~ 3 ~ - ~ N \ \ ~ _ \ \ ~ r i / \ , ~ SILK FEN~E~- ~ \ ~ LIVE STAKES ATTACHMENT 1-1 ~ ~ - - v v v -e-~-- . _ - Exlsr. sId ~ ~ ~ r/ v vv vv & LIVE STAKING DETAIL BB-iC ~ \ E 7 ` ~ ~ EXIST i0" P~ S/S ~ / ` \ ~Q~~DON v ~ v ~ ~ v _ I 1 ~~~~R-_\EICATION-S' ~ N F ME MEI3L \ ~ ~ \ `--3 ! 3-~ E-MH- / / -MH- ~ \ 0 _ ~ -302- \ ~ \ ~ ( C P OF RA PQ AT N' ~i HC F G. ~ \ \ \ \ \ J I ~ p0~ \ ~ ( STI G 'H~Y ~C 0 ME MGN . ~ ~°p \ \ -3~ 2 {~j - 1 ,v.I - / - l / ~ N6VJ OR~GOt~ RN ~ , ~ \ ~ ~ ~ E-MH-E ^ B ~0 P 00 45 ` ' 236 NO M D .a _ ~ \ _ ~ _ 30 ~ ~ 0~{iRY~NC 51 -49.75 ~ \ ~o•-- - ~ / . ~ ; / F y ~MM~UJ`~FYY X506- _ ~ _ _ \ ~ r- iS3 jRiANGL~-fR _ - - s`'`-~-~~ - TO BE ABANDONED) (T'I 8 _ G 4 ~ _ _ . ~ ~ - _ - TOP=302.12 BE ABANDONED) \C II°, / / / / 1 NOTE: P=302.12 / / ABANDON MANHOLES E--MH -D M 06 258 ~ \ - ~ - _ - 'l! TN~~Y N~Syb 3784 ~ ~ - F - _ INV.IN-293 67 ITT ~ ~ ~N W 6R FORMERLY' _ DB i ~ PG 7 53~ Q~ Q INV.QUT=293.47 N~ W34-03-'3 810 ~ ~ F'I`COI~YMU Y~SSBC.-tNC- ~ / ~ 1 ~ - /.IN=293-67 / / i E-MH-E, E-MH---E /.OUT=293.47 / ~,G RQ NK r ~'BM PG~9 a , ~ - ~ ~ ~ ~ " 133'~R~AIVfI:ATR~9E 013:._... - - - ` .EXIST. 30' foC_ ~ p-1IV~' 7 -037. ~ " ~s~t Q ` , E-MH-G AND SEWER MAIN, PER = k~(P A ~ T EL\ ~ iinRy_I~Y 2 7~318a - _ _ ` ~ _ _ - _ . _ _ GREENWAY ~ ~ .i Q• _ .r--t `~-s"'^ -y. 15~~'G t 5\ _ i EASEMENT - _ A SPECIFICATIONS _ _ - i i E E A S _ - PIN 073~~03 L924 bE"_` " \ / ~\\~4~ _ - as ° - - / '0 _ _ - _ _ _ ~ 7 _ t\ MH-637, STA. 288+83.47 }?10VE \ PROVIDE AN EXTENDED BASE 4' DIA. PRECAST CONCRETE MANHOLE WITH A 1 ` ~ +a.3 46 \ TYPE-3 STANDARD RING & COVER. 0 o X82+00, ~ 28 +Q6 = ~ ~A ~ ' y 2 ~ _ , =292275 0 SEE DETAIL 07000.01 & 07000.03. ~ - - o 285 OQ;.-'`"'r'te,.. a - - - - „ ~ D D 0 ~ - , - ~ 8 v.OU T= 292.77 - ~ - ~ ~ p~~ ~ - ~ ~ NOW OR FORMERLY - - J HOMEOWNERS ASSOC. OF RESERVE INC. __._._-_r_ Z o n--- ~ ~ ° - - It l'"I'L:L1U-llil?-,~11 - - ~ _ . _ o q _ i E-MH-C P.O. BOX 1117 p r / S Q_O STA. 289+38.34 APEX, NC 27502 - . E T 2 - ___100-YEAR FLOOD PLAlN - - R A N U LI - _ C pVG G y TOP=302.25 DB 08491 PG 0313 p / ~XAS®12 r°GRVICE mm NV.IN(E)=292.55 BM 1993 PG 1081 i _ _ ~ Z E E N ~ MH B35, STA. 286+58.54 ~ "°°R6MFtN INV.DUT=292.40 PIN# 0734-03-34.-4827 m ~ PROVIDE AN EXTENDED BASE 4' DIA. T- P R Y ~ T E CE PRECAST CONCRETE MANHOLE WITH A FIELD VERIFY INVERT OF EXISTING ~ O L P 100-F00~ L 0 T f0 ® ~ ,~X~ OFFSET TO TOP BANK OF SILT FENCE 50-FOOL TYPE-3 STANDARD RING & COVER. P. EX-MH-1339 PRIOR TO TIE IN ~ F S E f A E ~ ~ ~ 20 TOC UT1LlTY _ BACHELOR BRANCH FROM TYP. OFFSET TO FOP BANK OF SEE DETAIL 07000.01 & 07000,03. cAR , _ 5 ' ~ ~~D PIPELINE MENT DEfERM1NATlON BY.' ~ ~ BACHELOR BRANCH DB ot3 s ` Q e L-F. CO ® f,> PIN 0134- N ;1` RR ROBERT GOLDS7E~N, INC. ~ OL ROP 4- EPCASEM 20P _ CR S' ~ (N R ~ N83° O ¢ - F ` 100 UFFFR IPq ~A New oR FORMERLY EXIST. 4 FORCEMAIN ® PROF CONTRACTOR SHALL PROVIDE AN N83°3'9'54"E - EX-MH-B39 APPROVED CONNECTION TO EXISTIN PROP. 16" DIP 1 V GR B ~ eUFfi PR RTI S GROUP C + ~ 3 M ~ ~ ~ O 50, g„ ERR IMPacr oPE E EE TO BE REPLACED MH-B36, STA. 287+04.29 ABANDON SEWER MA / Q nvc STA. 2894-91.75 MANHOLE. CONNECTION TO EXISTIP DON SEWER MAIN-----,-- TOP=302302.0 .04 O A © RlP 1ao rowERVIEw cr. BY 16" GRAVITY SEWER ®PER SPECIFICATIONS O T /G T Of Y , geR~gN GARY, NG z7s73-3 ~ PROVIDE AN EXTENDED BASE 4' DIA. ~ SPECIFICATIONS INV.IN(S)=293.94 MANHOLE SHALL BE CORED THROU O~ / ~d• / 8..E INV.OUT=293.09 BENCH WITH A CONCRETE MACHINE of $ Y ® QUFFER DB zoozPC 2sa3 PRECAST CONCRETE MANHOLE WITH A Now oR FoRM FORMERL ~ ~ ~ ~ TYPE-3 STANDARD RING & COVER. GARY TowN of THE ~ ~ PIN 0734-03-23-9546 MH-833, STA. 284+60.30 P.O. BOX 8005 SEE DETAIL 07000.01 & 07000.03. XWBON OF OS THE ABANDON SEWER MAIN / PER SPECIFICATIONS MH-B32, STA. 283+74.98 PROVIDE AN EX~IENDED BASE 6' DIA. GARY, Nc v512--soo5 ® MI-f-B31, STA. 282-F30.64 PROVIDE AN EXTENDED BASE 5' DIA. PRECAST CONCRETE MANHOLE WITH A DB o611s PG ozso IC 27512--8005 PROJECT PROVIDE AN EXTENDED BASE 5' DIA. PINS' a734-o3-3 sa 1 84-03-3 80 PHASE IV PRECAST CONCRETE MANHOLE WI H A PRECAST CONCRETE MANHOLE WITH A TYPE-3 STANDARD RING & COVER. ® / ® ® ~ TYPE-3 STANDARD RING & COVER. TYPE-3 STANDARD RING & COVER. SEE DETAIL 07000.01 & 07000.03. ® ® ~ K 1 g 2$9+91.75 D INV.IN(NE)=292.23 SEE DETAIL 07000.01 & 07000.0 SEE DETAIL 07000.01 & 07000.03. a B ® ~ EXIST\~, FENCE n INV.IN(E)=292.71 / \ ! HARDEN BANK ON BOTH SIDES / , f \ \ N n INV.IN(NW)=2.92.51 3 LF. DOWN INV.OUT=29217 l -10 OF STREAM FOR 3 ~ ~ IAN gUFFE .m ~ o-....® AR ~ RIP - MH-B38 STA. 289+38.34 f 100 MH 834, STA. 285+84.57 ® STREAM OF CROSSING- #1-1. ® PROVIDE AN EXTENDED BASE 4' DIA. PROVIDE AN EXTENDED BASE 6' DIA. / / \ \ \ NOTE FIELDSTONE PUMP S~ TAT ON INSTAH COIR MATTING do LIVE STAKES PER SECTION 21000 OF PRECAST CONCRETE MANHOLE WITH A PRECAST CONCRETE MANHOLE WITH A \ TYPE-3 STANDARD RING & COVER. TYPE-3 STANDARD RING & COVER. \ TO REMAIN IN SERVICE. THE CONTRACT DOCUMENTS, LIVE J , ~j DO NOT DEMOLISH. STAKES ATTACHMENT 1-1, AND SEE DETAIL 07000.01 & 07000.03. SEE DETAIL 07000.01 & 07000.03. c_ - ' ° `3 LIVE STAKING DETAIL BB-10. ~ / THE ONTRACT R SHALL INSTALL INSTALL END BACH LOR NDBA HE R - - a 320 RANC' 320 - NOTE: THE S WER MAI BETWEE STA. 28 +30.64 g ~ DETAI 07000. 4. THE ANHOLE HAIL 1 MANHOLE HALL B CH AND TA. 289+ 1.75 SHA L BE INS ALLED ECTIN ACID ®R I:' BE NTED TO ELEVATID 24" AB TO W TER MAIN STANDAR S I 100- F1000 PLA{N RANC 24" AB INLAY RCEP OR CONTRACTOR SH LL COAT E LL COAT E 289+9L75 0 ~A. 600+87.62 00 R®JE T P SE IV ' INTERIO OF THE MANHOLE WITH MANHOLE WITH 0-o MH- 3-1, 5' IA. MH. RAVEN 05 UNIN SYSTEM, MH-631 STA. 282 30.64 TA. 28 +60.3 _ so-M{L MINIMUM THICKNE S. 11 11 THICKNESS. S. ® 0 ° AL- STA.600 87.62 5 DIA. H. - EX DED BA C NTRACTO SHALL OAT THE 315 - - 315 Q RIM 313.21 RIM ELE . = 299. f (2' AB VE GRAD) IN RIOR OF THE MAN OtE ~ MH-B38 INV. ELE . = 286.8 R VELA 405 LININGS TEM, MN-B36 STA. 28 +38.34 „ INV.I 8" = 2 5.86 EXI TING zz INV.I (10") = 95.21(EXI TING) 31 (MH IS L CATED THIN 8 -MIt5 MI IMUM THI KNESS. MH 834 STA. 287 04.29 6' DIA. H. - E LADED B SE LADED BASE BACHELOR BRANCH TNTERCEPTOR z ¢ w INV. UT(10") 295.16 100-YR. F100D Z NE) _ ST .285+84 57 _ 4' DIA. M . - fXTE DED BA = ' MH 833. STA 284+60.0 4' IA. MH. EXTEND D BASE RIM ELEV. = 302.0 ~ (2' AB VE GRAD) INV. IN 292.55 EXIST. 1 " ) 6 IA. MH. EXTEND D BASE V .641 INV. ELEV = 290.8 INV. IN 292.74 PROP. 8 EXIST. 1 C~ P IV, _j MH- 33, STA 84+60.30 END T STA. 289+91.75 m 'l s AL- STA. 600+00) RI ELEV. = 299.751 2' ABOVE GRADE RIM ElE . 300 ( ABOVE GRADE) MH IS L ATEO WI IN INV. OU = 292.4 (PROP. 6") N PROP. 6") o INTERIM COMPLETION #3 0 __7 °v \ RIME V. = 2 9.75± " ) INV ELEV. = 290.00 THE CON ACTOR ALL INS ALL A IN IN (10 } 289.63 M IS A WITHI 00-YR. OOD ZO E) _ MH IS OCATED THIN TWIN 310 w \ INV. I (10")= $9.63 310 VENT AS MBLY A SHOWN I STD. IN 9.1 10 YR. FLO D ZONE) 900-YR, FLOOD Z NE NE w T "n w \ INV. UT.(16289.13 = EX-MH B39, STA 289+91.75 co a.- z \ INV. VIM") 287.96 31 DETAIL 0 000.04. E MAN LE SHAL IN OUT. (3 " = 287. 6 (M IS LOCA WITHI MH-B37 BE VENTS TO ELE ATION 24 ABOVE AN 10 YR. FLO ZONE) M -835 STA. 28 +83.47 100-YR 000 PL _ M -B32, ST .283+7 .98 S A. 286+ 8.54 _ 4' DIA. H. EX LADED B SE W 4' DIA. MH. N \ v7 Q RIM EL V. = 302.04 p ( LADED BASE Ls- 5 DIA. MH. - EXTEN ED BASE 4 DIA. MH. - EXTEN ED BASE 00-YEAR BASE RIM ELE . = 300. 31(2' A OVE 3±(2- ABOVE GRADE) _ (EXIST.) > N INV. OUT = 293.9 RI ELEV. 299.531(2' ABO GRADE} R M ELEV. 301.75 (2' ABO GRADE) LOOD EL vATION INV. EL . = 292, 9 i °o a w o ` 100-YEA BASE IN .ELEV. 287.45 I V. ELEV. 290.52 REF. EEM -FIRM (MH IS OCATED THIN NE) + Q CL I FLOOD ELEVATION (M IS LOC TED WITHI (HIS LOC TED WI N AP~372 073400J) 100-YR. Ft00D Z E} 305 - 1 l N - • 305 M (REF. FE A-FIRM - (n o v o w AP#372 073400J) Odww O~ , 30: 100 YEAR BA E - - ~ - c~jrncwno j oow ELO D ELEVA710N _ - - ~ _ _ -~Ai A=R - - - - ~ - EXIST. S RFAGE~ 1540 RIGH -OF-WA MAP 3720073 OOJ) - - c~ + l z co j 1 cn of pLAJ ttoo I 1 OBwO _ - - _ _ ~ XIST. SU FACE ` 300 _ - - - ¢ 1 1 re-w 300 J ~ ~ c~ to cn E- s ? ! ~ to 1 ? co I I - 30, - ~ O I o0I I L 1 .ice _ ~ 1 +;I + - - - - - d J + Ulm 00, 1- N I I E IST. 8" PVC Ij )o ` ~ ~ ~ IN 100 1a- I I EXIST. 10" PVC fn 1 ( EXIST. 8" PVC U U IN ~Q Utc} p„~ Q QU 295 M - w + w,~ ~ EX ST. 12" PVC ' I 295 I + NOTE: + w ~ ~ N N ro I N ~ ~ CARRIER PIPE INC UDED I N FN zQ 000 I 29 N 88, IN 30" IPE QUAN TIES. M Z ~ ~ N 4 QN Qtn _ 5 DIP al d _ " N rn - - ~ " 0 70% u X70' PROVID 42 S L ~ ~ PROP. 1 "DIP " 1$0-16 PIPE ~ ENCAS MENT PIP , N ~ ~ 46 i6 PIP P )E 11 PER D TAIL 050 0.02 a " Pop ~ 0.70% ~ .74% o 63j 16" GA VALVE 0.65% 290 ~ I I 1 4 SEE DE AIL BB-5 zw 290 85'-30" IPE CONTRA TOR CONTRA TOR SHALL PROVIDE 38 L.F. LENGTH F CONC. 5 ® 0.60% ENCASE ENT ENCASE ENT FOR STREAM ROSSING SEE DETAIL BB-8) cn ~ 0 29 ¢ Ian 145'- 0" POPE 0.60% = NO : II CON D CONTRACTOR SHALL FIELD VERIFY INVERT OF THE SEWER MAIN BETWEEN 1 I c~i STA 600+00 AND STA. 600.1-87.62 EXIS SEW EXISTING X-MH-B 9 PRIOR TO INSTALLATION 0 w SEWER MAIN BETWEEN MH-B 8 AND E -MH-B3 SHALL B INSTALL D TO WA R AIN STANDARDS - 4. 285 285 - - O O O O O N ~ ~ O ~t I~ O O ~ U) ~t r~ O ~ O O N ~ 6i N i~ ~ O O d- Oi O h ~ n N m o 0 o co o r ~ r r r: ~ ~ ~ ~ ~ ~ ~ ~ r r r` ~ ~ r co ~ co ~ co m ~ tr o o is of o ~ ~ m ~ m ~ ~ ~ ~ ~ ~ rn m m ~ rn rn ~ ~ ~ w rn rn rn rn rn ~ rn ~ O o rn rn o ~ ~ o a o o Lri v n o T c~ w o o m o o~ ~1 N N N r7 r'") N ~ ~ r7 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N ~ r'l N N M N N + +00 +50 283+00 283+50 284+00 284+50 285+00 285+50 286+00 286+50 287+00 287+50 288-1-00 288+50 280 00 280+50 281+00 281 50 282 282 288+50 289+00 289+50 290+00 600+87.63 600+50 600+00 ~i