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Home My WebLink About20110119 Ver 2_401 Application_20120812August 21, 2012 David Brown U.S. Army Corps of Engineers Asheville Field Office 151 Patton Avenue, Room 208 Asheville, North Carolina 28801 -5006 Alan Johnson 4011Wetlands Unit 1650 Mail Service Center Raleigh, NC 27699 -1650 I1- 0kt9 U2- Re: High Shoals Sewer Interconnect (USACE Action ID: 2011 - 00270) (DWQ #11 -0162) Modification to Nationwide Permit No. 121401 Water Quality Certification No. 3689 Gaston County, North Carolina Dear Gentleman: HDR Engineering, Inc. of the Carolinas (HDR), on behalf of Gaston County (County), requests a modification to the approved Nationwide Permit (Action ID: 2012 - 00270) and 401Water Quality Certification (DWQ #11 - O> > 0\ -962) to account for an unpermitted permanent impact that occurred during the construction of the High Shoals Interconnect project in Gaston County. While boring beneath Stream B (unnamed tributary to the South Fork Catawba River) the 60 -inch pipe casing came in contact with subsurface bedrock causing the casing to be exposed within the existing stream channel. Approximately 10 linear feet (LF) of permanent impacts will be realized for the maintenance corridor for Stream B. Enclosed are a Pre - construction Notification (PCN), revised stream impacts table, site detail (Sheet OOC- 02WM), and site photographs. Thank you in advance for your assistance. If you have any questions or require additional information after your review of the enclosed information, please co 973 -6878 or edc.mularski athddnc.com. A L5 j� Respectfully, �G Eric Mularski, PWS Environmental Scientist NOR Engineering, Inc. of the Carolinas AUG 2 q TOp 440 S Church Street Suite 1000 Charlotte, NC 28202 -1919 Phone: (704) 338.6700 Fax: 1704) 338 -6760 www.hdrinc.com CC: Ray Maxwell, Public Works Director, Gaston County Dan Ziehm, Gaston County Mike Bynum, Two Rivers Utilities Mary Knosby, HDR Matt Shultz, HDR Steve Brown, State Utility NOR Engineering, Inc. of the Carolinas O�ot W A T�9�G o 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 El Section 10 Permit 1 b. Specify Nationwide Permit (NWP) number: 12 or General Permit (GP) number: 1c. Has the NWP or GP number been verified by the Corps? ❑ Yes ® No 1d. 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 1e. 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: High Shoals Interconnect Project 2b. County: Gaston 2c. Nearest municipality / town: High Shoals 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: 3b. Deed Book and Page No. 3c. Responsible Party (for LLC if applicable): Gaston County; POC: Ray Maxwell 3d. Street address: P.O. Box 1578 3e. City, state, zip: Gastonia, NC 28053 -1578 3f. Telephone no.: (704) 862 -7551 3g. Fax no.: (704) 869 -7399 3h. Email address: Ray.maxwell @co.gaston.nc.us 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: 4b. Name: 4c. Business name (if applicable): 4d. Street address: 4e. City, state, zip: 4f. Telephone no.: 4g. Fax no.: 4h. Email address: 5. Agent/Consultant Information (if applicable) 5a. Name: Eric Mularski 5b. Business name (if applicable): HDR Engineering, Inc. of the Carolinas 5c. Street address: 440 South Church Street, Suite 1000 5d. City, state, zip: Charlotte, NC 28202 -1919 5e. Telephone no.: (704) 973 -6878 5f. Fax no.: (704) 338 -6760 5g. Email address: eric.mularski @hdrinc.com Page 2 of 11 PCN Form — Version 1.3 December 10, 2008 Version B. Project Information and Prior Project History 1. Property Identification 1 a. Property identification no. (tax PIN or parcel ID): See attached property owners table 1 b. Site coordinates (in decimal degrees): Latitude: Longitude: - (DD.DDDDDD) (- DD.DDDDDD) 1c. Property size: acres 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to Mulitple unnamed tributaries to the South Fork Catawba proposed project: River and Little Long Creek 2b. Water Quality Classification of nearest receiving water: South Fork Catawba River (WS -IV and WS -IV; CA), and Little Long Creek (Class C) 2c. River basin: Catawba River Basin 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: According to the land cover and land use classification adopted by North Carolina, the project property and surrounding properties are classified as forested land, agricultural, and residential land. The proposed project involves the installation of force main, gravity sewer line, and five (5) duplex submersible wastewater pump stations. The proposed utility has been located at minimum 100 feet from the top of bank of the South Fork Catawba River. The selected alignment includes the following: — 35,509 LF of 8 -inch through 15 inch gravity sewer — 19,538 Lf of 4 -inch through 10 -inch force main piping. 3b. List the total estimated acreage of all existing wetlands on the property: Total wetland acreage within the construction corridor is 0.05 acres. Temporary impacts will be 0.04 acre. Permanent wetland impacts will be 0.01 acre. 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: Estimated linear feet of existing stream in the construction corridor is 320 LF There will be ten stream crossings with 270 LF of temporary impacts (30 LF per crossing) and 140 LF of permanent impacts. The three South Fork Catawba River crossings will be bored to avoid any impacts to this stream. 3d. Explain the purpose of the proposed project: The High Shoals Sewer Interconnect project would extend service to High Shoals, the Gaston County Landfill, the Gaston County Power Generation Facility, the Gaston County Energy Park, and potentially other property owners along the sewer alignment with aging septic systems. High Shoals currently owns and operates 2 poorly performing wastewater treatment plants (WWPT). The primary purpose of the interconnect project is to decommission these 2 plants and convey wastewater to the City of Gastonia's Long Creek WWTP. 3e. Describe the overall project in detail, including the type of equipment to be used: The High Shoals Interconnect project includes renovations to the existing High Shoals collection system, extending the wastewater collection system to unsewered areas of High Shoals currently on aging septic systems, decommissioning the 2 existing package wastewater treatment plants, and extending the outfall downstream to the Long Creek WWTP. The project includes the construction of 5 waste water pump stations and installation of approximately 35,509 LF of gravity sewer and 19,538 LF of force main piping. Standard construction equipment will be used such as excavators, backhoes, hauling trucks, etc. Page 3 of 11 PCN Form — Version 1.3 December 10, 2008 Version 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / ® Yes ❑ No ❑ 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: HDR Engineering, Inc. of the Carolinas Name (if known): Eric Mularski Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. March 11, 2011 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. This PCN is a modification of the approved Nationwid Permit (Action ID: 2012 - 00270) and 401 Water Quality Certification (DWQ #11 -0162). 6. Future Project Plans 6a. Is this a phased project? ❑ Yes ® No 6b. If yes, explain. 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 Clearing Bottomland Hardwood ® Yes ® Corps 0.01 (P) Forested ❑ No ❑ DWQ 0.04 (T) W2 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ 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 2h. Comments: Contours will be returned to existing grades. Backfill for the installation of pipe was considered fill and clearing is considered both temporary and permanent due to the need to clear for installation and for the permanent maintanence corridor. 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 See table attached ❑ PER ❑ Corps attached ❑ INT ❑ DWQ S2 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S3 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S4 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S5 ❑ P [IT ❑ PER ❑ Corps ❑ INT ❑ DWQ S6 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ 3h. Total stream and tributary impacts 3i. Comments: The 40 ft. of impact length is for construction; however, the maintenace corridor for the project will be 10' wide. Installation of the force main and gravity lines will be at or near perpendicular to the stream and will consist of an open cut trench excavatation lined with rip rap below the normal high water level. The line will be buried 6 -7' dee . The stream Page 5 of 11 PCN Form — Version 1.3 December 10, 2008 Version crossings will be at grade and should not impair aquatic life movement. 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 ❑ PEI T 02 ❑P ❑T 03 ❑P ❑T 04 ❑P ❑T 4f. Total open water impacts 4g. Comments: 5. Pond or Lake Construction If pond or lake construction proposed, then complete the chart below. 5a. Pond ID number 5b. Proposed use or purpose of pond 5c. Wetland Impacts (acres) 5d. Stream Impacts (feet) 5e. Upland (acres) Flooded Filled Excavated Flooded Filled Excavated Flooded P1 P2 K Total 5g. Comments: 5h. Is a dam high hazard permit required? ❑ Yes ❑ No If yes, permit ID no: 5i. Expected pond surface area (acres): 5j. Size of pond watershed (acres): 5k. Method of construction: Page 6 of 11 PCN Form — Version 1.3 December 10, 2008 Version 6. Buffer Impacts (for DWQ) If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts below. If any impacts require mitigation, then you MUST fill out Section D of this form. 6a. ❑ Neuse El Tar-Pamlico El 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 El Yes ❑ No 6h. Total buffer impacts 6i. Comments: D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. All stream crossings are at perpendicular angles to reduce impacts to channels. Shifting of the alignment was made to avoid and minimize stream crossings. Installed rip rap to stabilize the stream crossings at the original elevation of the stream beds. The river crossings will be bored installation to minimize impacts. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Disturbed wetland areas will be returned to pre - construction contours and re- vegetated with native riparian species. Temporary wetland impacts will consist of excavating and buring (at a minimum of 4ft. deep) the utility lines below current wetland elevations. The construction corridor in wetlands and at stream crossings will be 40 feet wide. Permanent impacts to wetlands will consist of woody vegetation removal and permanent maintenance of the 10 -foot wide corridor. Crossings to the South Fork Catawba River will be horizontal boring with steel casing pipe or horizontal directional drilling . Sediment and erosion control measures will be employed during construction. 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 ❑ payment to in -lieu fee program project? ❑ Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3a. Name of Mitigation Bank: 3b. Credits Purchased (attach receipt and letter) Type Quantity Page 7 of 11 PCN Form — Version 1.3 December 10, 2008 Version 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. 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 8 of 11 PCN Form — Version 1.3 December 10, 2008 Version E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1a. 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: 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? <1 % 2b. Does this project require a Stormwater Management Plan? ❑ Yes ® No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: Installation of force main and gravity sewer will be not create additional impervious surface. Pump stations will create less than <1 % imperious serface 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: N/A ❑ 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? Gaston County ❑ Phase II 3b. Which of the following locally - implemented stormwater management programs ❑ NSW ❑ USMP apply (check all that apply): ❑ Water Supply Watershed ® Other: N/A 3c. Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ® No attached? 4. DWQ Stormwater Program Review ❑ Coastal counties 4a. Which of the following state - implemented stormwater management programs apply ❑ HQW ❑ 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? 0 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 letter.) ❑ Yes ® No Comments: An Environmental Assessment was conducted as part of the Engineering Report approved by NCDWQ. The project was below the thresholds that require a SEPA document. 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. 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. Long Creek WWTP (NPDES permit NCG110056) is owned and operated by the City of Gastonia. Long Creek WWTP has a permitted capacity of 16.0 mgd and is currently treating an average flow of approximately 8.0 mgd. The plant's treatment process includes primary clarification, 5 -stage BNR with post- anoxic basins for denotrification, secondary clarifiers, tertiary sand filters, chlorine disinfection and dechlorination, and post- aeration. The plant currently provides service to the cities of Gastonia, Ranlo, and Lowell. Long Creek WWTP's performance has been exceptional in recent years and achieving excellent permit compliance. Long Creek WWTP has excess capacity and a viable partner for High Shoals and Gaston County wastewater flow. 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? El 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? Natural Heritage Program and USFWS databases, field surveys (2010), and project concurrence letters (dated 2/19/2010 and 4/28/2010) 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as essential fish habitat? F[:1 Yes ® No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? NOAA Fisheries Fish Habitat GIS coverage. 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? State Historic Preservation Office (SHPO) National Register listed properties GIS coverage and database search. SHPO concurrence was received on 11/11/09. 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA- designated 100 -year floodplain? 719 Yes ❑ No 8b. If yes, explain how project meets FEMA requirements: Topography will be returned to pre - construction grades. 8c. What source(s) did you use to make the floodplain determination? Flood Insurance Rate Maps Eric Mularski 8/20/2012 Applicant/Agent's Printed Name Date Applicant/Age nature (Agent's signature is valid only if an auth 'zation letter from the applicant is rovid Page 11 of 11 PCN Form — Version 1.3 December 10, 2008 Version 3a. 3b. 3c. 3d. 3e. 3f. 3g. Stream impact Type of Stream Name Perennial Type of Average Impact number- impact (PER) or jurisdiction stream length Permanent (P) intermittent (Corps -404, width (linear or Temporary (INT)? 10 DWQ — (feet) feet) (T) non -404, other S -1 (P/T) Rip -rap Little Long Creek S PER Corps 20 -25 10 (P) 30 T S -2 (P/T) Rip -rap UT to South INT Corps 6 -7 10 (P) Fork S 30 T S -3 (P/T) Rip -rap UT to South INT Corps 6 -8 10 (P) Fork SD 30 T S-4 (P /T) Rip -rap UT to South INT Corps 15 10 (P) Fork SC 30 T S -5 (P/T) Rip -rap UT to South PER Corps 8 -10 10 (P) Fork SM 30 T S -6 (P/T) Rip -rap UT to South PER Corps 6 -8 10 (P) Fork SL 30 T) S -7 (P/T) Rip -rap UT to South PER Corps 8 -10 10 (P) Fork (SE 30 T) S -8 (P/T) ,Rip -rap UT to South Fork (SE) PER Corps 8 -10 10 (P) 30 T) S -9 (P/T) Rip -rap UT to South PER Corps 8 -10 10 (P) Fork (SE) 30 (T) S -10 (P) Culvert UT to South PER Corps 12 -15 40 (P) Fill Fork SB S -11 (P) Fill UT to South Fork SB PER Corps 4 -6 10 (P) 3h. Total stream and tributary impacts 140 (P) 270 z z k |§ k & �- . | � 2Z Z�y � � ��Z � } ' / • � ■, , �� i� � � |§■ \% \� � . k ) E� ® | . � � §(3 9k al r )) zk I )o § � LU § -1§ U, K $2 _� \$ � a ,� # \ Q� k � �,� � ) . ! § A � � § ' . . § |§ ® ■ � � � § ° g � � § ; |r � § Li ■ ! § |� ! . 2� |!, | | |� °! |■■!§ §| 2 � � � ° ■•..� ;. 2Z Z�y � � ��Z � } ' / • � ■, , �� i� � � |§■ \% \� � . k ) E� ® | . � � §(3 9k al r )) zk I )o § � LU § -1§ U, K $2 _� \$ � a ,� # \ Q� k � �,� � ) . ! § A � PR 112- _ ri!�i� lyigE FdgRe ' �c r0- �O 4j V/ 00 Ga-,. 00 6 56.OZ h35- 7Z 635.3 0 O3 20' TEMPORARY CONSTRUCTION EASEMENT. O4 MAXIMUM DISTURBANCE WIDTH WITHIN STREAM TOP OF BANKS SHALL BE 40 FEET. OS DO NOT DISTURB STREAM BANKS OR STREAM BED. /;7\ INSTALL WATERPROOFING SYSTEM MEETING ASTM C836, CARLISLE - LIQUISEAL CCW -525 ', TREMCO "TREMPROOF 201/60 OR EQUAL. PROVIDE 60 MIL THICKNESS ON INTERIOR WALLS. COMPLY WITH ALL MANUFACTURER'S RECOMMENDATIONS. PROVIDE FOR MANHOLES B70, L3, L4, L6, L7, L8 AND L9. NO EXTRA PAYMENT WILL BE MADE FOR THIS WORK. INCLUDE ALL COSTS IN THE BID ITEM FOR 4 FT DIAMETER MANHOLES. ODO NOT REMOVE ANY TREES WITHIN EASEMENT BETWEEN STA 37 +00 AND STA 41 +00. 40 0 40 80 Insiiienw- HORIZONTAL SCALE IN FEET 10 0 10 20 VERTICAL SCALE IN FEET :iH SHOALS INTERCONNECT 40 +00 i90 i80 370 560 550 640 630 LINE B - STA 30 +80 TO STA 41 +20 15' GRAVITY SEWER PLAN AND PROFILE 0 1" 2" FILENAME OOC- 14.dwg SCALE AS NOTED OOC -14 C s IA ' I 1 I Ito 0 --- f w -- -- 1 jN w I� "B" I !STREAM O ' I 520 LF OF 36- STEEL,CASING PIPE O1 /J N 'CG 540.00 LF OL 15_2 0.U0%— - - - -- - --- - - -- - -- - - -- i/� --- -- � I I - - -- - - -- f i - - -- I U IIa :iH SHOALS INTERCONNECT 40 +00 i90 i80 370 560 550 640 630 LINE B - STA 30 +80 TO STA 41 +20 15' GRAVITY SEWER PLAN AND PROFILE 0 1" 2" FILENAME OOC- 14.dwg SCALE AS NOTED OOC -14 C s IA fal ONE COMPANY i Many Solutions- Site Photoaraahs — Hiah Shoals Sewer Interconnect Stream B Crossing Stream B )u cm ?�,P%—: