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HomeMy WebLinkAbout20070640 Ver 1_Application_20070411~ ~ Cane Creek Outfall Huntersville, North Carolina ?o~~ ~~~o T r, .y ~__~' Joint Application Form and Supporting Documentation for NATIONWIDE PERMITS THAT REQUIRE NOTIFICATION TO CORPS OF ENGINEERS & NCDENR Prepared For: Mr. Barry James American Asset Corporation 3700 ARCO Corporate Drive, Suite 350 Charlotte, NC 28273 Prepared By: Leonard S. Rindner, PWS Environmental Planning Consultant 3714 Spokeshave Lane Matthews, NC 28105 (704)904-2277 Burton Engineering Associates 5950 Fairwview Road Suite 100 ..~ ~"~T~~ y Charlotte NC 28273 ~~ ~~~~,~~~~~~~'~~ ~~ U ~~>._~ ~~°~` ~;N 1~ ~. k. ~~.QQ 1 *Subject to verification by the USACE and NCDWQ ,,a.°`~w~~~~a~`' ~11.ANd` Date: Apri18, 2007 Page 1 of 13 t R ~`° ''~,. Office Use Only: Form version May 2002 USACE Action ID No. DWQ No. (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) I. Processing 1. Check all of the approval(s) requested for this project: X Section 404 Permit ^ Riparian or Watershed Buffer Rules ^ Section 10 Permit Isolated Wetland Permit DWQ X 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ^ 4. If payment into the North Carolina Wetlands Restoration Program (NCWRP) is proposed for mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), complete section VIII and check here: 5. If your project is located in any of North Carolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal Management Area of Environmental Concern (see the top of page 2 for further details), check here: ^ II. Applicant Information 1. Owner/Applicant Information 0 t ; ~ ;,~~•, ~r~,~~ ~- Telephone Number: E-mail Address: ~k~. Mr. Barry James ~~ ~ ~ i 2Q~J7 American Asset Corporation ~.t. 3700 ARCO Cor orate Drive Suite 350 taEt~"~ - ~~~~`~ ~;'~ ~?:gR~D„ Charlotte, NC 28273 ~'"D'~ p'ID s 704 295 4005 Fax Number: 2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: Leonard S. Rindner, PWS Company Affiliation: Environmental Planning Consultant Mailing Address: 3714 Spokeshave Lane Matthews, NC 28105 Telephone Number: 704 904 2277 Fax Number: 704 847 01 85 E-mail Address: lrindner(a~carolina.rr.com Page 2 of 13 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps maybe included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full=size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: Cane Creek Outfall 2. T.I.P. Project Number or State Project Number (NCDOT Only): 3. Property Identification Number (Tax PIN): 4. Location County: Mecklenburg County Nearest Town: Huntersville Subdivision name (include phase/lot number): Directions to site (include road numbers, landmarks, etc.): See attached vicinit~ap 5. Site coordinates, if available (UTM or Lat/Long): #1 35.4059°N, 80.8035°W (NAD27) USGS Cornelius (NC) Quadrangle; #2 35.3988°N, 80.8126°W (NAD27) USGS Cornelius (NC) Quadrangle; #3 35.3958°N, 80.8121°W (NAD27) USGS Cornelius (NC) Quadrangle; #4 35.3947°N, 80.8128°W (NAD27) USGS Cornelius (NC) Quadrangle; # 5 35.3915°N, 80.8149°W (NAD27) USGS Cornelius (NC) Quadrangle; # 6 35.3902°N, 80.8159°W (NAD27) USGS Cornelius (NC) Quadrangle; # 7 35.3869°N, 80.8180°W (NAD27) USGS Cornelius (NC) Quadrangle; # 8 35.3848°N, 80.8231°W (NAD27) USGS Cornelius (NC) Quadrangle; # 9 35.3837°N, 80.8234°W (NAD27) USGS Cornelius (NC) Quadrangle ; #10 35.3831°N, 80.8240°W (NAD27) USGS Cornelius (NC) Quadrangle 5. Property size (acres): + 10 acres within Right of Way 6. Nearest body of water (stream/river/sound/ocean/lake): Cane Creek 4 CI ~ ~- CXc:~~ 7. River Basin: Y (Note -this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) Page 3 of 13 8. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: Undeveloped former agricultural, and timbered woodland; disturbed land. 9. Describe the overall project in detail, including the type of equipment to be used: Gravity-Line Sewer Installation. 10. Explain the purpose of the proposed work: Installation of Sewer Trunk Main to service developing area of Huntersville. IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of .the same T.I.P. project, along with construction schedules. Several sewerline alternatives were field evaluated. The sewer line plans were modified to cross creeks at perpendicular angle and minimize impacts to stream buffers and wetlands. V. Future Project Plans Are any future permit requests anticipated for this project? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application. Additional impacts are not expected. Additional impacts if required will be applied for appropriately VI. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. The applicant must also provide justification for these impacts in Section VII below. All proposed impacts, permanent and temporary, must be listed herein, and must be clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. Page 4 of 13 1. Provide a written description of the proposed impacts: Temporary impacts to streams and wetlands will be minimized by strict adherence to Nationwide Permit #12 Conditions and NCDENR GC 3374 2. Individually list wetland impacts below: 3. Wetland Impact Site Number (indicate on map) Type of Impact* Area of Impact (acres) Located within 100-year Floodplain** (yes/no) Distance to Nearest Stream (linear feet) Type of Wetland*** A NWP #12 +/-0.09 yes 0 to 100' +/- PSS1A B NWP #12 +/-0.10 yes 0 to 100' +/- PSS1A C NWP #12 +/- 0.10 yes 0 to 100' +/- PSS1A See attached mitigation plan. Project will be implemented according to NWP #12 and GC 3374. * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding. ** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps (FIRM), orFEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or online at httn://www.fema. ov. *** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond, Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only). List the total acreage (estimated) of all existing wetlands on the property: + .29 acres Temporary wetland impacts for sewerline implementation - .29 acres 4. Individually list all intermittent and perennial stream impacts below: Stream Impact Site Number (indicate on map) Type of Impact* Length of Impact (linear feet) Stream Name** Average Width of Stream Before Impact Perennial or Intermittent? (please specify) Sewerline 1 NWP 12 40' Clarke Creek 8' - 12 "+/- Perennial Sewerline 2 NWP 12 40' Cane Creek 8' - 12' +/- Perennial Sewerline 3 NWP 12 40' IJ'T of Cane Creek 4'_6' Intermittent Sewerline 4 NWP 12 40' Cane Creek 8'-12' +/- Perennial Sewerline 5 NWP 12 40' LTT of Cane Creek 3' - 4' Intermittent Sewerline 6 NWP 12 40' Cane Creek 8'-12' Perennial Sewerline 7 NWP 12 40' UT of Cane creek 3'-4' Intermittent Sewerline 8 NWP #12 40' UT ofCane creek 3'-4' Intermittent Page 5 of 13 Sewerline 9 NWP #12 40' ITT of Cane creek 3'-4' Intermittent Sewerline 10 NWP #12 40' LJT of Cane creek 3'-4' Intermittent All stream crossing are through bedrock making borings impracticable. Boring holes would be approximately greater 60' to over 90' wide due to depth.. Sewerline crossing will be implemented according to NWP #12 and GC 3374. * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap, dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain), stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. ** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at www.us~s.i;ov. Several intemet sites also allow direct download and printing of USGS maps (e.g., www.tonozcme.com, www.tnapqucst.com, etc.). Cumulative temporary impacts (linear distance in feet) to all streams on site: 4001f Temporary impacts to perennial streams were minimized to 160 linear fee>; 5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.) below: N/A Open Water Impact Site Number (indicate on map) * Type of Impact Area of Impact (acres) Name of Waterbody (if applicable) Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc.) * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging, flooding, drainage, bulkheads, etc. 6. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ^ uplands ^ stream ^ wetlands Describe the method of construction (e.g., dam embankment, excavation, installation of draw-down valve or spillway, etc.): Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): Size of watershed draining to pond: Expected pond surface area: Page 6 of 13 VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and fmancial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. The sewer alignment corridor was located to minimize impacts to wetlands and stream buffers. Crossings are perpendicular to the stream bed. Temporary impacts to streams and wetlands will be minimized by strict adherence to Nationwide Permit #12 Conditions and NCDENR GC 3374. Crossings of perennial streams have been minimized to the extent feasible. VIII. Mitigation DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on March 9, 2000, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCWRP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o. enr.state.nc.us/ncwetlands/strmgide.html. 1. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. Page 7 of 13 Sewer line Minimization and Mitigation Plan. NCDWQ Conditions of Certification (excerpts from GC 3374) a. Wriiten concurrence is required if the edge of the construction corridor is installed parallel to and closer than 10 feet (3 meters) to a stream or if the utility line crosses a stream channel at less than 75 degrees or more than 105 degrees of the stream bank; b. Any wastewater line that crosses any stream shown on the most recent version of the 1:24,000 USGS topographic map as permanent or intermittent shall be installed with no-seam piping. If no-seam piping can not be installed, written concurrence from NCDWQ is required. c. Construction corridors parallel to streams shall be placed at the furthest distance from the stream to the maximum extent possible; d. Measures shall be taken to prevent live or fresh concrete from coming into contact with waters of the state until the concrete has hardened; e. Placement of riprap is restricted to stream bottoms and banks directly impacted by the placement of the utility line. Riprap may only be used below the normal high water level. The stream berm must be restored to the original contours after construction; f. That appropriate sedimentation and erosion control practices which equal or exceed those outlined in the "North Carolina Erosion and Sediment Control Planning and Design Manual" or "North Carolina Surface Mining Manual" are utilized to prevent exceedances of the appropriate turbidity water quality standards (50 NTUs in streams and rivers not designated as trout waters by NCDWQ; and all lakes and reservoirs; and 10 NTUs in trout waters); g. All sedimentation and erosion control measures placed in wetlands shall be removed and the natural grade restored after the Division of Land resources has released the project; h. Annual species suitable for wet locations shall be planted within jurisdictional wetlands for soil and erosion control. Perennials such as fescue are prohibited; No fertilizer shall be applied within 10 feet of streams; j. The construction corridor (including access roads and stockpiling of materials) is limited to 40 feet in width in wetlands and must be minimized to the maximum extent practicable. k. Permanent, maintained access corridors shall be restricted to the minimum width practicable and shall not exceed 10 feet in width except at manhole locations. A 10 feet by 10 feet perpendicular vehicle turnaround must be spaced at least 500 feet apart. 1. An anti-seep collar (See detail) shall be placed at the downstream (utility line gradient) wetland boundary and every 150 feet up the gradient until the utility exits the wetland for buried utility lines. Anti-seep collars may be constructed with Class B concrete, compacted clay, PVC pipe, or metal collars. Wetland crossings that are directionally drilled, and perpendicular wetland crossings that are open cut and less than 150 feet (45.7 meters) long do not require anti-seep collars. The compacted clay shall have a specific discharge of 1 X 10 -5 cm/sec or less. A section and plan view diagram is attached for the anti-seep collars. The following specifications shall apply to class B concrete: a) Minimum cement content, sacks per cubic yard with rounded course aggregate 5.0 b) Minimum cement content, sacks per cubic yard with angular Page 8 of 13 course aggregate 5.5 c) Maximum water-cement ratio gallons per sack 6.8 d) Slump range 2"to 4" e) Minimum strength - 28 psi 2,500 m. This general certification does not authorize any permanent changes in preconstruction elevation contours in waters or wetlands. The permitee will have a specific plan for restoring wetland contours. Any excess material will be removed to a high ground disposal areas; n. Compensatory mitigation (i.e., restoration, creation or preservation) for wetland losses will not be required for this Certification if written concurrence is not needed. o. Written concurrence is required if the maintenance corridor is greater than 10 feet wide. p. This certification does not relieve the applicant of the responsibility to obtain all other required Federal, State, or local approval. Non-compliance with or violation of the conditions herein set forth by a specific fill project shall result in revocation of this Certification for the project and may also result in criminal and/or civil penalties. The Director of the NCDWQ may require submission of a formal application for Individual Certification for any project in this category of activity, if it is determined that the project is likely to have a significant adverse effect upon water quality or degrade the waters so that existing uses of the wetland or downstream waters are precluded. Public hearings may be held for specific applications or group of applications prior to a certification decision if deemed in the public's best interest by the Director of the NCDWQ. Additional USACE Regional Conditions to Nationwide Permit 12 (Applicable to this project) - Temporary placement of excavated or fill material in waters and wetlands will be for the absolute minimum period of time necessary to accomplish the work. - Each individual crossing will be stabilized immediately with native vegetation. Stabilizing with non-native grasses (i.e., fescue, etc.) is prohibited - Anti-seep collars must be installed at no greater than 150-foot intervals on all sewer and drain lines placed in wetlands, and all utility lines must be installed to prevent drainage of wetlands (i.e., no French drain" construction, etc.) - The total width of the access corridor excavation and temporary fill area (including mechanized land clearing) is restricted to no more than 40 feet and must be minimized to the extent practicable. Restoration Plans in Wetland Areas Clearing in Waters of the U.S. shall be minimized to the extent feasible - up to 40' only as necessary to facilitate safe construction. As required, the topsoil shall be saved through the disturbed wetland areas, and the top 6" to 12" of the trench should be backfilled with this topsoil to encourage rapid re-establishment of previous vegetation conditions. Excess material must be removed to upland areas immediately upon completion of construction. An annual species suitable for wet locations will be planted within jurisdictional wetlands for soil and erosion control. Perennials such as fescue will not be specified in wetland areas. Anti-seep collars shall be used to prevent wetland draining. Grassing Specification Disturbed wetland areas shall be stabilized with annual small grains that will initially stabilize the soils and then allow the natural vegetation to become re-established. For stabilization, outside the optimum planting windows, using a mixture of species on either side of the window may increase chances of a good stand. Germination will be most difficult in the December -February period. For wetland stabilization during this period, it will be necessary to be sure those wetlands are well mulched. Annual lespedeza could be added to any planting mixtures during this period because it will germinate during the first warm days of spring. Page 9 of 13 Seedine Mixture -Wetland areas in temporarily saturated soils or subject to occasional and brief inundation Dates Types Rate April 1 -Jul. 15 Red Top (Agrostis alba) 71bs/acre Smartweed 20 lbs /acre Jul. 16 - Sept. 1 Temporary Crop Jap. Millet or Sorghum 20 lbs /acre (to be followed by permanent mixture) Sept. 2 - Nov. 1 Smartweed 20 lbs /acre Red Top (Agrostis alba) 7 lbs/acre Nov. 1 -March 31 Temporary Crop 401bs /acre Wheat or Winter Rye (to be followed by permanent mixture) Seeding Instructions 1) Seed in the dry period 2) use of a filler, such as sand to dilute the seed to ensure uniform ground coverage when broadcasting 3) Pure live seed shall be specified and approved prior to planting. 4) Mulch Substitutions may be permitted with approval. Other native grasses or annuals may be selected. No fescue shall be used in wetland areas. Temnorarv Seeding Mixture Dates Types Rate April 15 - Sept. 1 Temporary Crop Jap. Millet or Sorghum 40 lbs /acre Aug. 25 - Oct. 31 Wheat SO lbs /acre Kobe lespedeza 15 lb/acre Nov. 1 -April 15 Wheat or Winter Rye 401bs /acre Kobe lespedeza 15 lb/acre Nurse Plants Between May 1, and August 15, add 10 lbs/acre German millet or 15 lb/acre Sudangrass. Prior to May 1 or August 15, add 40 lb/acre rye (grain). Other native grasses or annuals suited to wet conditions may be selected with approval. No fescue or other turf grasses shall be used in wetland areas. Mitigation for temporary stream impacts will be conducted by reestablishing woody vegetation within the sewerline stream crossings except for the permanent easement. Scrub/Shrub and Live Stakes Alnus spp. Cornus spp. Viburnum dentatum Itea virginica Ilex decidua Others that are approved Cephalanthus occidentalis Sambucus canadensis Page 10 of 13 By complying with the Nationwide Permit 12 and 401 Certification conditions it is expected that this project will not cause significant impacts to streams and wetlands. 2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at (919) 733-5208 to determine availability and to request written approval of mitigation prior to submittal of a PCN. For additional information regarding the application process for the NCWRP, check the NCWRP website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCWRP is proposed, please check the appropriate box on page three and provide the following information: Amount of stream mitigation requested (linear feet):. Amount of buffer mitigation requested (square feet): Amount of Riparian wetland mitigation requested (acres): Amount ofNon-riparian wetland mitigation requested (acres): Amount of Coastal wetland mitigation requested (acres): IX. Environmental Documentation (required by DWQ) NA Does the project involve an expenditure of public (federaUstate) funds or the use of public (federaUstate) land? Yes ^ No X If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ^ No ^ If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ^ No ^ X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) NA It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? Yes ^ No ^ If you answered "yes", provide the following information: Page 11 of 13 Identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. Zone* Impact (s uare feet) Multiplier Required Miti ation 1 3 2 1.5 Total * Zone 1 extends out 30 feet perpendicular from near bank of channel; "Lone 2 extends an additional 20 feet from the edge of Zone 1. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Conservation Easement, Riparian Buffer Restoration /Enhancement, Preservation or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0260. XI. Stormwater (required by DWQ) Describe impervious acreage (both existing and proposed) versus total acreage on the site. Discuss Stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. All projects in Huntersville are subject to the following strictly enforced Stormwater ordinance: Page 12 of 13 Water Quality Protection Regulation FINAL 1/27/03 Water Quali Protection Purpose. The purpose of this regulation is to establish storm water management requirements and controls to prevent surface water quality degradation to the extent practicable in the streams and lakes within the Town Limits and Extraterritorial Jurisdiction of Huntersville and to protect and safeguard the general health, safety, and welfare of Huntersville's residents. This regulation seeks to meet this purpose by fulfilling the following objectives: a) Minimize increases in storm water runoff from development or redevelopment in order to reduce flooding, siltation and streambank erosion, and maintain the integrity of stream channels; b) Minimize increases in non-point source pollution caused by storm water runoff from development or redevelopment that would otherwise degrade local water quality; c) Minimize the total volume of surface water runoff that flows from any specific site during and following development in order to replicate pre- development hydrology to the maximum extent practicable; d) Reduce storm water runoff rates and volumes, soil erosion and non-point source pollution, to the extent practicable, through storm water management controls (BMPs) and to ensure that these management controls are properly maintained and pose no threat to public health or safety; and e) Meet the requirements of the National Pollution Discharge Elimination System (NPDES) Storm Water Permit and other requirements as established by the Clean Water Act. This regulation and the Huntersville Water Quality Design Manual encourage the use of Low Impact Development (LID) practices, which more closely replicate a site's predevelopment characteristics compared to conventional storm water management techniques. 2 Applicability. This regulation shall apply to all of the land located within the Town Limits and Extraterritorial Jurisdiction of Huntersville. The effective date of this regulation is February 17, 2003. This regulation governs the development and use of all land and structures. No building, structure, or land shall be used, occupied or altered, and no building, structure, or part thereof shall be erected, constructed, reconstructed, moved, enlarged, or structurally altered, unless in conformity with all Water Quality Protection Regulation FINAL 1/27/03 the provisions of this regulation and all other applicable regulations, except as otherwise provided by this regulation. .3 Exceptions to Applicability. a) All properties shall be subject to this regulation except those properties which, as of the effective date of February 17, 2003, fit into one of the following categories: (i) Have been issued a Certificate of Building Code Compliance; (ii) Have a valid building permit; or (iii) Are included on a valid preliminary subdivision plan and/or a valid sketch plan. b) New development, redevelopment or expansions that include the creation or addition of less than 5,000 square feet of new impervious area, provided they are not part of a larger subdivision plan, are not subject to the provisions of this regulation. .4 Definitions. For the purposes of this Ordinance, the following words and phrases shall be defined as specified below: Best Management Practices (BMPs). A structural or nonstructural management based practice used singularly or in combination to reduce non-point source input to receiving waters in order to achieve water quality protection goals. - Non-structural BMPs -Non-engineering methods to control the amount of non-point source pollution. These may include land-use controls and vegetated buffers. - Structural BMPs -Engineered structures that are designed to reduce the delivery of pollutants from their source or to divert contaminants away from a waterbody. Detain. To store and slowly release storm water runoff following precipitation by means of a surface depression or tank and an outlet structure. Detention structures are commonly used for pollutant removal, water storage, and peak flow reduction. Hydrolo~ic Abstractions. Physical processes of interception of rainfall or overland storm water flow by vegetation, evaporation from land surfaces and upper soil layers, transpiration by plants, infiltration of water into soil surfaces, and storage of water in surface depressions. Low Impact Development (LID). The integration of site ecology and Water Quality Protection Regulation FINAL 1/27/03 environmental goals and requirements into all phases of urban planning and design from the individual residential lot level to the entire watershed. Mecklenburg County Land Use and Environmental Services Agency. The department or division of Mecklenburg County government (regardless of the title given to it by Mecklenburg County) which has responsibility for storm water and water quality matters, acting as the agent of the Town of Huntersville for various purposes in connection with the enforcement of this regulation. National Pollution Discharge Elimination System (NPDES) Permit. A permit issued pursuant to the federal Clean Water Act for the purpose of controlling discharges of pollutants to surface waters and protecting water quality. In North Carolina, NPDES Permits are issued by the N.C. Department of Environment and Natural Resources. Non-Point Source (NPS) Pollution. Forms of pollution caused by sediment, nutrients, organic and toxic substances originating from land use activities and carried to lakes and streams by surface runoff. Retain. To capture and hold storm water runoff following precipitation by means of surface depression allowing the water to infiltrate into the soil, thus reducing the hydrologic and pollution impacts downstream. Retention structures are commonly used for pollutant removal, water storage, and peak flow reduction. Site Evaluation Tool (SET). A spreadsheet-based model that assesses and compares pre-development and post-development runoff, infiltration, and pollutant loading rates, which provides a methodology to aid in better site design and evaluation of BMP effectiveness. Total Suspended Solids (TSS). Total suspended matter in water, which is commonly expressed as a concentration in terms of milligrams per liter (mg/1) or parts per million (ppm). Huntersville Water Quality Design Manual. The Mecklenburg County Land Use and Environmental Services Agency shall furnish, maintain and update a Water Quality Design Manual for the Town of Huntersville containing additional policy, criteria and information that shall be followed for the proper implementation of the requirements of this Ordinance. BMPs that are designed and constructed in accordance with the criteria contained in this Manual shall be accepted as meeting the minimum Performance Criteria specified in Section 8.17.6. 6 Performance Criteria. Water Quality Protection Regulation FINAL 1/27/03 Land development activities shall be performed in such a manner as to minimize the degradation of water quality conditions through compliance with the Performance Criteria listed below. Section 6 of the Huntersville Water Quality Design Manual contains a description of approved BMPs for meeting each of these Criteria. a) All storm water treatment systems used to meet these Performance Criteria shall be designed to achieve average annual 85% Total Suspended Solids (TSS) removal for the developed area of a site. Areas designated as open space that are not developed do not require storm water treatment. All sites must employ LID practices to control and treat runoff from the first inch of rainfall. b) LID practices or a combination of LID and conventional storm water management practices shall be used to control and treat the increase in storm water runoff volume associated with post-construction conditions as compared with pre-construction (existing) conditions for the 2-year frequency, 24-hour duration storm event in the Rural and Transitional Zoning Districts. For all other Zoning Districts, LID practices or a combination of LID and conventional storm water management practices shall be used to control and treat the increase in storm water runoff volume associated with post- construction conditions as compared with pre-construction (existing) conditions for the 1-year frequency, 24-hour duration storm event. This may be achieved by hydrologic abstraction, recycling and/or reuse, or other accepted management practice as described in Section 6 of the Huntersville Water Quality Design Manual. c) Where any storm water BMP employs the use of a temporary water quality storage pool as a part of its treatment system, the drawdown time shall be a minimum of 48 hours and a maximum of 120 hours. d) Peak storm water runoff rates shall be controlled for all development above 12% imperviousness. The peak storm water runoff release rates leaving the site during post-construction conditions shall be equal to or less than the pre- development peak storm water runoff release rates for the 2-year frequency, 24-hour duration storm event and 10-year frequency, 24-hour duration storm event. The emergency overflow and outlet works for any pond or wetland constructed as a storm water BMP shall be capable of safely passing a discharge with a minimum recurrence frequency of 50 years. For detention basins, the temporary storage capacity shall be restored within 72 hours. Requirements of the Dam Safety Act shall be met when applicable. e) No one BMP shall receive runoff from an area greater than five (5) acres. However, the total drainage area from BMPs used in series (i.e., integrated) can exceed this five (5) acre maximum. Low Impact Development (LID). Water Quality Protection Regulation FINAL 1/27/03 The Performance Criteria discussed in Section 8.17.6 shall be achieved using LID site planning and techniques or a combination of LID and conventional storm water management practices. The goal of LID is to develop site design techniques, strategies, and BMPs to store, infiltrate, evaporate, retain, and detain runoff on the site to more closely replicate pre-development runoff characteristics and to better mimic the natural and unique hydrology of the site thereby limiting the increase in pollutant loads caused by development. The selection of these strategies and techniques for compliance with the Performance Criteria in Section 8.17.6 is discretionary and shall be detailed in a Water Quality Management Plan submitted during the preliminary plan review process. Specific requirements regarding the design, installation and maintenance of LID structures and a discussion of LID site planning is contained in the Huntersville Water Quality Design Manual. .8 Plan Submittal and Review. a) Sketch Plans. Preliminary sketch plans shall contain the information necessary to evaluate the proposed development site for compliance with Performance Criteria as detailed in Section 9 of the Huntersville Water Quality Design Manual. b) Site Evaluation Tool. Site Evaluation Tool (SET) output shall be submitted along with sketch plans for each proposed development site. Section 9 of the Huntersville Water Quality Design Manual contains detailed information concerning the submission requirements for SET. c) Water Quality Management Plan. A Water Quality Management Plan shall be submitted along with preliminary plans for each proposed development. The Plan shall demonstrate compliance with Section 8.17.6, Performance Criteria, unless otherwise exempted. The Plan shall contain SET outputs, supporting computations, drawings, soil analyses, calculations for each BMP, and overall site hydrology calculations as well as other information sufficient to describe the manner, location, and type of measures for managing storm water from the development in compliance with Section 8.17.6. In addition, the Plan shall specify those parties responsible for long-term maintenance of all BMPs. Section 9 of the Huntersville Water Quality Design Manual contains specific submission requirements. The Mecklenburg County Land Use and Environmental Services Agency shall review the Plan to determine compliance with the Performance Criteria listed in Section 8.17.6. Approval of the Water Quality Management Plan by the Mecklenburg County Land Use and Environmental Services Agency is required prior to the initiation of land disturbing activities and said Plan shall serve as the basis for all subsequent construction. d) Adjustments of Information Requirements. Information requirements maybe adjusted by the Zoning Administrator or designee for a particular development Water Quality Protection Regulation FINAL 1/27/03 application upon written request of the applicant, provided at least one of the following circumstances can be demonstrated: (i) Alternative measures for on-site and/or offsite management of storm water have been proposed and these measures are approved for compliance with the Performance Criteria in Section 8.17.6. (ii) It is otherwise demonstrated that the proposed development will not produce any significant change to the existing, pre-development stream or site hydrology and pollutant loading. 9 Incentives. a) Purpose. The purpose of this Section is to set forth incentives to offset restrictions that LID may have on the development of certain sites. b) Setbacks. In order to accommodate water quality BMPs, required setbacks, side yards and rear yards in the Rural and Transitional Zoning Districts may be reduced up to 25%. The reductions may not compromise public safety such as the site distance triangles as defined by this Zoning Ordinance. c) Sidewalks. To reduce impervious cover and promote LID, sidewalks on one side of the street may be waived in the Rural Zoning District. d) Required Plant Reduction and Substitution. In order to accommodate water quality BMPs, the number of planted trees may be reduced in buffer yards by 10%. 50% of the required trees may be 1.5 inches in caliper, and all shrubs may be 24 inches in height. e) Encroachments. Water quality BMPs may encroach into a required buffer yard as long as the encroachment does not disturb existing vegetation. Minor understory may be disturbed in order to accommodate water quality structures. Trees and shrubs shall be placed to maximize screening where the encroachment takes place. If the encroachment runs parallel to the buffer, the width of the buffer shall be increased by the amount of the encroachment. 10 Appeals and Variances. An appeal to reverse or modify the order, decision, determination, or interpretation of the Huntersville Zoning Administrator or any other designated administrative officer shall comply with the procedures and standards of Section 11.3 of these regulations. .11 Posting of Financial Security. Water Quality Protection Regulation FINAL 1/27/03 Approval of a Water Quality Management Plan shall be subject to the owner filing a surety bond or letter of credit or making other financial arrangements in favor of Mecklenburg County as agent for the Town of Huntersville acceptable to the Mecklenburg County Land Use and Environmental Services Agency guaranteeing the installation and maintenance of required BMPs until the issuance of certificates of occupancy for seventy-five percent (75%) of all construction which might reasonably be anticipated to be built within the area which drains into the BMP, allowing credit for improvements completed prior to the submission of the fmal plat. At such time that this level of occupancy is achieved, written notice thereof shall be submitted by the owner to the Mecklenburg County Land Use and Environmental Services Agency. The owner shall verify the adequacy of the Maintenance Covenant for the BMPs including the necessary financing to support the proposed maintenance practices. The owner shall also provide professional engineer certification that the BMP is designed and constructed in accordance with approved plans and specifications. The Mecklenburg County Land Use and Environmental Services Agency will inspect the structural BMP and verify the effectiveness of the Maintenance Covenant and, if both are found to be satisfactory, the Mecklenburg County Land Use and Environmental Services Agency will notify the owner in writing within 30 days of the date of notice regarding approval of the BMP. Following the issuance of this written approval, the owner can request the release of the surety bond, letter of credit or other financial arrangements at which time the maintenance responsibilities for the BMPs shall revert to the Homeowners Association, property owner or other party responsible for long term maintenance as specified in the Maintenance Covenant. It shall be expressly stated within the restrictive covenants or homeowners association documents that it will be the responsibility of the owner or assigns to maintain BMPs until such time as maintenance responsibilities have been transferred to the Homeowners Association Board of Directors, property owner or other party responsible for long term maintenance of the BMPs. It shall be the sole responsibility of the owner or assigns to correct any deficiencies prior to said transfer of maintenance responsibilities. .12 Final Plat Requirements. The exact boundary of all water quality best management practices shall be shown on final plats prepared by a registered surveyor. Also, these plats shall contain the following statement: "This lot contains a water quality feature that must be maintained in accordance with the recorded Maintenance Covenant as specified in Section 8.17.13(a) of the Huntersville Zoning Ordinance." 13 Maintenance. BMPs that are constructed on privately-owned land and that are not within a public easement shall be maintained by a Homeowners Association or the owner of the subject property. BMPs that are constructed on public land within public rights-of- way, and/or within public easements shall be maintained by the public body with ownership/jurisdiction of the subject property. The following requirements shall be Water Quality Protection Regulation FINAL 1/27/03 met for all BMPs that have been constructed on privately-owned property and not within a public easement. . a) Maintenance Covenants. Prior to the issuance of an Occupancy Permit for any building within a permitted development served by a BMP, the applicant or owner of the BMP shall establish a formal Maintenance Covenant approved by the Mecklenburg County Land Use and Environmental Services Agency and recorded in the Office of the Register of Deeds in which the owner acknowledges the duty of the owner and all subsequent owners of the property to maintain the BMP in accordance with the terms of the covenant. A maintenance plan and schedule shall be included as part of the covenant as well as a mechanism for funding maintenance and repairs. This Maintenance Covenant shall also specify the Homeowners Association or other party responsible for maintenance of the BMP. A Homeowners Association or similar legal entity has the power to compel contributions from residents of a development to cover their proportionate shares of the costs associated with BMP maintenance. b) Requirements for the Maintenance Covenants. BMPs shall be periodically inspected as described in the Maintenance Covenant to identify maintenance and repair needs and to ensure compliance with the requirements of these regulations. Any identified maintenance and/or repair needs shall be addressed in a timely manner. The inspection and maintenance requirement may be increased as deemed necessary by the Mecklenburg County Land Use and Environmental Services Agency to ensure proper functioning of the BMP. c) Records of Installation and Maintenance Activities. Parties responsible for the inspection, operation, and maintenance of a BMP shall make records of the installation of all the maintenance and repairs and shall retain the records for at least five years. Those records shall be made available to the Mecklenburg County Land Use and Environmental Services Agency upon request and/or as specifically outlined in the Maintenance Covenant. d) Failure to Maintain Practices. It is unlawful for a property owner to fail to meet the requirements of the Maintenance Covenant. Any person or association that fails to meet the requirements of the Maintenance Covenant shall be subject to a civil penalty payable to the Town of Huntersville of not more than $500. Each day that the violation continues shall constitute a separate violation. No penalties shall be assessed until the person alleged to be in violation has been notified in writing of the violation by registered or certified mail, return receipt requested, or by other means which are reasonably calculated to give actual notice. The notice shall describe the nature of the violation. with reasonable particularity, specify a reasonable time period within which the violation must be corrected, and warn that failure to correct the violation within the time period will result in assessment of a civil penalty or other enforcement action. In the event that a BMP becomes a Water Quality Protection Regulation FINAL 1/27/03 danger to public safety or public health, the Mecklenburg County Land Use and Environmental Services Agency, after reasonable notice as described above, may seek a mandatory or prohibitory injunction and order of abatement commanding the property owner to correct a violation of the design criteria standards or maintenance needs contained in the Maintenance Covenants by performing all necessary work to place the BMP in proper working condition. If the property owner fails to take corrective action as ordered by the Court, the Town of Huntersville may seek an order holding the property owner in contempt of court and for authority to execute the order of abatement by taking the corrective action. If the Town of Huntersville executes the order of abatement it shall have a lien upon the property for the cost of executing the order of abatement. .14 Inspection of BMPs. a) Inspections. Inspections shall be conducted as prescribed by the Maintenance Covenant. Additional inspections may be conducted by the Mecklenburg County Land Use and Environmental Services Agency on any reasonable basis, including but not limited to: routine inspections; random inspections; inspections based upon complaints or other notice of possible violations; inspections of drainage basins or areas identified as higher than typical sources of sediment or other contaminants or pollutants; inspections of businesses or industries of a type associated with higher than usual dischargers of contaminants or pollutants or with discharges of a type which are more likely than the typical discharge to cause violations of State or Federal water quality standards or the NPDES Storm Water Permit; and joint inspections with other agencies inspecting under environmental and safety laws. Inspections may include, but are not limited to: reviewing maintenance and repair records; sampling discharges, surface water, groundwater, and material or water in BMPs; evaluating the condition of BMPs and storm water management practices. b) Right-of--Entry for Inspection. When any new BMP is installed on private property, the property owner shall grant to the Mecklenburg County Land Use and Environmental Services Agency the right to enter the property at reasonable times and in a reasonable manner for the purpose of inspection. 'This includes the right to enter a property when the Mecklenburg County Land Use and Environmental Services Agency has a reasonable basis to believe that a violation of this regulation is occurring or has occurred, and to enter when necessary for abatement of a public nuisance or correction of a violation of this regulation. XII. Sewage Disposal (required by DWQ) 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. Municipal System XIII. Violations (required by DWQ) NA Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes ^ No X Is this an after-the fact permit application? Yes ^ No X XIV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list c straints associated with construction or sequencing that may impose limits on work sc es e.~g~raw-down schedules for lakes, dates associated with Endangered and Threaten ~ `c~~ s~,,~~"essibility problems, or.other issues outside of the applicant's control). // Applicant/Agent's Signature 0~ (Agent's signature is valid only if an authorization letter from the applicant is provided.) Page 13 of 13 LEONARD S. RINDNER, PWS Environmental Planning Consultant 3714 Spokeshave Lane Professional Wetland Scientist Matthews, NC 28105 Land Planning Teie: (704) 904-2277 Fax (704)847-0185 April O5, 2007 Mr. Barry James American Asset Corporation 3700 Arco Corporate Drive, Suite 350 Charlotte, NC 28273 Phone 704.295.2005 Re; Cane Creek Sanitary Sewer Outfall Dear Mr. James: In order to interface with the United States Army Corps of Engineers and the North Carolina Department of Natural Resources I will need your authorization. Please sign the following statement: This letter authori~+es Leonard S. Rindner, PWS as our firm's agent in matters related to Waters of the U.S. and Waters of North Carolina for the referenced project site. This includes interfacing with the United States Army Corps of Engineers and the North Carolina Department of Natural Resources. ~~~ ~ ~ ~ ~ o Nam -Title Date ~ Please contact me if you have any questions or require additional explanation. Thank you. Sincerely, Leonard S. 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BURTON ~'" carrE cRRr~x ENGINEERING P'-"" SANITARY sL~a °uTF'wr~' ASSOCIATES ~• 1'~ ~~TT ona. e~ma uMD K~wtrs 3TRF.AM CR033IIdG ~6 aoao rte.. ~ •a~n. ioo• oh.~e., we as~o (704) 06.0001 • Fa (704) ES7-Om0 17 24 CHARLOTTE-MECKLENBURG UTILITY DEPARTMENT ENGINEERING DIVISION ;, , BURTON t; = ENGINEERING ASSOCIATES o~ oom~s wo wins eoao rtw.. iu awa Boa a~.iece.~ we sea~o rya) ee~aen • r« rya) e~eeeo CANLr CIiEEIC saNrrwmr s1~z ov~wla. 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BURTON sed« CANE cR~x ENGINEERING ~+ sAivlralt~ s~R OLTPFALL ASSOCIATES aaar:~ ~ ;;a ~~~, ~ n~ aam FdrNar Rd, •awe. ioo. olwbtb, NC ze21o STRF,A][ CA03ffiNG ~$ (>~) ~f-!OM • Fat (70~) Ed7..!!!p ~ 22 24 ~ ~ • 0 ~ ~Q ~ v~ ~ ° I~ 1~ ,M ~ ~ ~ ~\~ o~`` JIB ~ \ ~ ~~ 1 \~ r ~ \ \ \ ~ \\ \~ I ~ 1 t ~ ~ ~ 1 ~. ~ \ I ° ~ ~~ ~+ I 1 ~, \ ~ \ , I I \ 1 I \ f i ^ II 1 1 I 1 I / j I UI 1 /( ~ j ~ j~~l I II l(l ~ ( I ' i M / / / ~ / / ~~z ~~ / ~ / ~ I / / / / ~ / a y°z'` Y ~ //~ `3Q~~/~ / / I / ~ / 7- // / ~ry0/~/// ~ _/ - I I // / //// ~ / / / / / / / / / / / ~~ G~~ 1 / ~ ~ L !! / ~ / / / i G~ / / L'1 ~ / / I W ~ ~ ~ I ~ c~ ~ / ~ L I ~? /~~ ~ 3 a Fes- V \ ~ ~ ~ j N ~ \ ~ l \ 1 1 / -~ \ I I j / ' 1 I - ~ ~~~O ~ , r n.'II ~'9~~~ ~ ~ _~ \ / "<< ~ / 1 i I / N j j ~ T;G.E. j ~ w ) ~~ N ~ 1 ~ ~ _.y N ~ I `~ ° ~ I \O GM W W ~ V ~W Wd'~pa, 1\ \ ~~ ~ \ / \ ~ oZQOQZpYZ \ \, ~ a ~~~'$iv\ 1 1 f 1 ~/ / <~ a~oo ~ \ ~ ~ _~ 1 \ ~ / ~- l~ ~~ \ ~ ~ ~ \ 1 / ~\\ ~ ~ \ _ \ 1 I 1. V ~ / ~ \\\ i /I / ~ \~ ~I / ~ / ~ / I ~ ~ I 1 ( ~ / /, 1 ~ ~ ( / / ~ / I / / ~ ~ ~ / S~ / U / ~ / / // ~ ~ / ~~~ Na Z Y / / ~~ d, *a 02~~ ~ / / -s ~ ~ w ~ .o m O Y ~ j j ~ .~ o~ ogo~gµ I ~ ~ \~ o~~ 1 j ~`ii ~ ~~~ o / ~, ~" ~ 11 II I ~ I ~ ~ o / cn 1 ~? / I / ~ j ~(I / 1 I 11 II ~? I I I 1 t~a I /~ ~~ I I ~ o I~ 1 OZ ~ j ~ I 1 ~ I ~ Li ~~c~O +g g~ 1 ~ 1 ~~ ` y ~ j mw~ i3 I l w - ~:- - _ _ --- ~ - - - - - - - 123+00 124+00 125+00 CHARLOTTE -ME CKLENBURG UTILITY DEPARTMENT ENGINEERING DIVISION CHARLOTTE NORTH CAROLINA soo-m.as4 BURTON S°°'° cANE ct~x ENGINEERING a.~w 3ANTTARY SEIPER ovTFAri. ASSOCIATES ~._;:~ ~~~. a~a Ewam~s - II11o ~~~ 3TREA3e< CROS9IIdG #9 de {/10 64EO FaYMw Rd. •9ib 100• C~slalb. NC 96210 (704) E6S-Ee01 • Fmc (704) a67-~601D 24 24 r ~ • N }' ~7 N v N ~i ~ E~ ~ zWo~ ,~o w~~~ ~~ ~ U ~E~U ~Qx W° A ww~a ~~ ~Aaz w H~~~ ~ o~W~ ~~ ~ _~ U ~ ~ z O~ w a vi y z Y~ O W U m Z Z - ~~ a ~w ax m oa O ~' W ~3 o u~ -~ ~c~ a ¢m Q z O zwx U~ K~ O m~ W ¢¢ OULL ril~0 Q az z~ N ~~ ~~() J F= yiV LL L. to Z~ fOW O ,` FwN M~ ~"OW ~yy f(~~ y W fqW N ZKy O W vgp ~~ ~Ot~n o W vy y c ~ j ~ ~ _ -\ LL0= UW ~~ E~ ~~. oU ,~z ~ ~,~ y > 2' ,gym w o C9 ~ b 0 w C iC Qj ~~ W w ~$~~ ~~ m Z W O Y D Z Oho m~ ~ ~ ~ ~ (n E ~>3 xz Q ¢Ox JO ~ m m m H Z 'C O 3~ ~m ~ xza ~~ j ~' md~ O g `°~ xv nw N>o aK = x u) ~g ~U ~Q ~~ ~ r = mwxw x ~ > JWOF ¢¢ ~ m~yw W woo W x~°w OO ~ m~Y¢ V ~yg~ y m = W -U'OJ W p WrOYy m f"ri 0¢_ LLKH OJ V ~ FO ~ W ~ ~ WO ~~~/~ OpZ 3~ W ymcxi~ = ym yc~ p v! ~Qm ~Z p m ~NIW.4 ~~m ~U Q o ?03 ~o ~ Z ~ N f O Zw FW4 o~ m~,L~Q ~7 {r~~ ~~ 6 ~ r Sewer Pipe Size In Inches MINIMUM SLOPES FOR SANITARY SEWERS AS REQUIRED BY THE N.C. STATE BOARD OF HEALTH 8 10 12 15 16 18 21 24 30 and larger B. Route Selection TABLE 2 Minimum Slope In Feet Per 100 Feet 0.40 (CMUD min. is 0.60) 0.28 0.22 0.15 0.14 0.12 0.10 0.08 Based on velocitycalculations 1. Overlay property lines onto topographic map. 2. Make a preliminary layout, minimizing the number of parcels involved and paralleling property lines where possible. Avoid obvious construction problems where possible. 3. If the average daily flow is greater than 1 MGD and the project is greater than 3 miles in length, an environmental assessment is required. If there is evidence of wet areas, or if any project area is shown on Mecklenburg County wetland inventory maps, a wetlands delineation is required. These should be scheduled early in the project in order that they can be considered in route selection. 4. Where an Environmental Assessment is required, obtain input from the person or firm conducting the Environmental Assessment. Minimize environmental ..damage (wetlands, unnecessary stream crossings, damage to tree canopy over streams, etc.) 5. If the proposed route crosses or parallels a roadway, get all other utilities, including other CMUD facilities, located.. Consider the NCDOT requirements for encroachments in selecting the route. July 27, 1995 IV-4 Design of Sanitary Sewers ~ , Cane Creek Outfall Sanitary Sewer Line Threatened and Endangered Species Survey -Terrestrial ~7 p g40 For: Leonard S. Rindner, PWS Submitted by: Lisa Gaffney Biologist HABITAT 9305 - D Monroe Road, Charlotte, NC 28270 /ASSESSMENT AND o: 704-841-2841; f: 704-841-2447 RESTORATION PROGRAM, INC. ~ r Cane Creek Outfall SSL Cane Creek Outfall Sanitary Sewer Line Threatened and Endangered Species Survey -Terrestrial Physical Setting: The Cane Creek Outfall Sanitary Sewer Line (SSL) will follow Cane Creek from the future Hambright Road Extension traversing north-northeast to just west of Asbury Chapel Road, a distance of approximately 2.6 miles, in northeastern Mecklenburg County, North Carolina. This alignment can be found on the Cornelius USGS Topographic Quadrangle Map; at the midpoint of the alignment the latitude is 035° 23" 20"' N, longitude is 080° 48" 58"" W. The topography consists of flat floodplain and gentle to moderate slopes, with the elevation ranging from 650 ft. to 690 ft. (Figure 1). Figure 1. Lisa Gaffney -HARP, Inc. 2 r Cane Creek Outfall SSL Methods: The North Carolina Natural Heritage online database was searched for species of concern known to occur in the Cornelius USGS Quad (Table 1). There are three plant species with a Federal Status listed for this Quad. There is one plant species listed as F (Federally Endangered) for this Quad and that is Schweinitz's Sunflower (Helianthus schweinitzil~. This species occupies open, disturbed habitat and is known to occur on roadsides and power line rights-of-way (PLROW). There is a previously known population of this species on a small PLROW on nearby Trails End Road. There is one plant species listed as C (Candidate) Georgia Aster (Aster georgianus) which also requires open disturbed habitat as does Bird-foot Trefoil listed as FSC (Federal Species of Concern).The entire corridor was walked to search for the presence of these species. * There are two aquatic animal species with a Federal Status listed for this Quad: Carolina Creekshell (Villosa vaughaniana) (FSC) a freshwater mussel, and Carolina Darter (Efheostoma collis) (FSC) a fish. If the presence of these species needs to be determined a separate aquatic study of this reach of Cane Creek will need to be conducted. Table 1. Returned Elements: 9 using: CORNELIUS [Invertebrate Animal 1 ] [Nonvascular Plant 1 ] [Vascular Plant 4] [Vertebrate Animal 3] fed el 5~~e ~~aEa"1 Ni~ao - 5aenbfic Name ,.Major Group' t Common Name ~tatus Status Rank Rank Quad Status ;,Habitat ~,.,,v... ~~~_~m ~_. . , . ,., ,, Qe Invertebrate Villosa vaughaniana Carolina ~ E FSC S2 Cornelius- !G2 Link Animal Creekshell Current Nonvascula r Rhachithecium l3uddingTortula SR-D None S1S2 Cornelius- G4G5 Link Plant perpusillum Historic Vascular .Helianthus 5chweinitr's E `E 83 Corne~ius- G3 Link 'Plant schweinitzii Sunflower - !Current Vascular Lotus helleri Carolina Birdfoot- SR-T FSC S3 Cornelius- G5 Link Plant trefoil Current 1iascular Symphyotrichum ._ Georgia Aster ~=Aster ::Plant georgianum georgianus). Vascular Thermopsis mollis Appalachian Plant Golden-banner Vertebrate ~Condylura cristata Star-nosed Mole - Coastal Plain Animal pop. 1 Population Vertebrate Crotalus horridus Timber Animal Rattlesnake Vertebrate Etheostoma collis Carolina Darter - Central Piedmont Animal ppp, 1 Population T C S2 -Cornelius- G2G3 Link Historic SR-P None S2 Cornelius- G3G4 Link Historic SC .None S2 Cornelius- G5T2Q Link Historic SC None S3 G4 Cornelius- Link Current SC FSC S3 Cornelius- G3T3Q 'Link Current NC NHP database updated on: Friday, August 11th, 2006. Lisa Gaffney -HARP, lnc. 3 ~ r Cane Creek Outfall SSL Results: This proposed SSL corridor passes through many different landowners property with many different land uses, therefore there is a mosaic of different habitat conditions. Overall, most of the alignment passes through the floodplain woods in the riparian corridor of the creek. Some properties have been timbered in part. Some areas in the corridor are residential lawns. There are also several small power line rights-of-way (PLROW) and two relatively large- PLROW which appear to be managed with herbicide and bush hogging. The areas where the corridor crosses these PLROW were closely investigated for the three plant species of concern because this is the specific habitat type these species occupy. The floodplain woods are the main habitat type the SSL alignment will pass through. The average diameter at breast height (DBH) of the canopy trees is 12 inches with some larger trees up to 2'/2 feet DBH. Canopy species present include Sycamore (Platanus occidentalis), Sweetgum (Liquidambar styraciflua), American Elm.(Ulmus americans), Tulip Poplar (Liriodendron tulipifera), Mockernut Hickory (Carya tomentosa), Hackberry (Celtis laevigata), Black Walnut (Juglans nigra), Red Maple (Acer rubrum), River Birch (Betula nigra), and Beech (Fagus grandifolia). Subcanopy species present include Ironwood (Carpinus caroliniana), Winged Elm (U/mus slats) Box Elder Maple (Acer negundo), Umbrella Tree (Magnolia tripetela), and Black Cherry (Prunus serotina). Shrubs: Blackberry (Rubus sp.), Elderberry (Sambucus canadensis), Spicebush (Cinders benzoin), Chinese Privet (Ligustrum sinense), Hazelnut (Corylus americans), Buckeye (Aescu/us sylvatica) and Silky Dogwood (Cornus amomum). Common vines present include Japanese Honeysuckle (Lonicera japonica), Catbriar (Smilax sp.), Poison Ivy (Toxicodendron radicans), Crossvine (Bignonia capreolata), and Virginia Creeper (Parthenocissus quinquefolia). Herbs present are Wild Onion (Allium sp.), Puttyroot (Aplectrum hyemale), and Wild Ginger (Hexastylis sp.) The PLROW support ascrub/shrub/herb complex that appears to be managed by mowing and hericiding. Saplings present include Short-leaf Pine (Pinus echinata), Red Cedar (Juniperus virginiana), Sweetgum (Liquidambar styraciflua). The shrub layer is dominated by Blackberry (Rubus sp.). Herbs present include Broomsedge (Andropogon virginicus), Small Wood Sunflower (Helianthus microcephalus), Coneflower (Rudbeckia laciniata), Mountainmint (Pycnanthemum sp.), Plume Grass (Erianthus contortus), Wooly Mullein (Verbascum thapsus), Dog Fennel (Eupatorium capillifolium), Love grass (Eragrostis sp.), Bull Thistle (Cirsium sp.), Panic Grass (Panicum sp.), and Lisa Gaffney -HARP, lnc. 4 Cane Creek Outfall SSL Goldenrod (Solidago sp.).Vines include Japanese Honeysuckle (Lonicera japonica) and Catbriar (Smilax sp.). Endangered Species Survey Results: No terrestrial species of concern were observed in the proposed SSL corridor. Recommendations: I have no recommendations regarding threatened and endangered species for this project. Respectfully submitted, Lisa R. Gaffney Biologist, HARP Inc. Lisa Gaffney -HARP, Inc. 5 . - Cultural Resources Evaluation of the Proposed Cane Creek Sewer Line (+/-3.5 miles) (Revised Corridor) Huntersville vicinity, Mecklenburg County, North Carolina. Compiled for: Len Rindner Environmental Consultant By: Briece R. Edwards, RPA CRAG Ref No. 07-178 Cultural Resources Assessment Group: A rc h a e o l o (LLC) gy P.O. Box 12107 Raleigh, NC 27605 cragarch@earthlink.net 919 828-8100 or 919 274-4458 v ~ ~ MANAGEMENT SUMMARY The archaeological survey of the proposed Cane Creek sewer line and revised corridor covered approximately 3.5 miles in length near Huntersville in northern Mecklenburg County, North Carolina. The purpose of the survey was to examine the project area for prehistoric or historical archaeological sites with significant remains that might be eligible for nomination to the National Register of Historic Places. Since the entire project area is forested, the survey relied heavily on screened shovel tests at intervals of 30 m (100 feet). In areas with exposed ground surfaces (plowed fields, logging roads, farm roads, tree falls, bore hole tests, etc.), the surveyors closely examined the exposed areas for prehistoric and historic artifacts. The survey recorded one prehistoric site. The site appears in the following table with its site number, a brief description of the site and its research potential, and our opinion as to whether the site should be considered eligible for nomination to the National Register of Historic Places: Table 1. Sites located during the survey. Site Number & Accession Number Type of Site Research Potential National Register Potential Cane Creek 1 Prehistoric Low Not Eli 'ble ENTIRE REPORT AVAILABLE ON REQUEST M + ~ 0 7 0 6 4 0 3 ~,t Lang %+ °,6? rwn ~ [Plums ~ r ' L.at ~ f ' ~ ~ .. Mieiaayl I > r ,MgYlii~n q, I ~ IP ..r kNlNll ~ i ' . ~ ~ _ ~ ~ I' ` ~~ ` ~ r . f ds '~ ~ • r ~~ " "I ~~ i rt~~f~a~v °, 19eautviit. ,~, ! . u :,Pu~ru~rlrVn~ ,' AJetAv I Gir7LAr " ~. .1 _~p. 0 r LY i 1 /~ , I ~.f ,I ~„_ 1~ _ ~ ,~i t Opar Clry_.- ~.Trl a -LJ i ~' ~ ~hneciuxsl nCnla ° f-. ":, 1 + +aa•r ' ~ ' 4 1 t t Irp+1 ~ '~ i f _.. k ,~ ~ ~. 31or s o+lr Maur! prd~i2 , + ; ~ _ ~ .~~~ -c. ~[' _ `° ~ - 1 ti . ~kll~h Blrwll ~ Hardin T . ~F lrsaold ~~ J ~ f a" ~ herryWit» 12' e , o j ~, [5u f+4~ ~ ~ ~ , 4, . r ,r, vaa .4 rrurarix+ldr K~~ ~,,~,,+'13tlS5E P11t1" ~ta~~ ~ Cllr '~' ~' a+~IRn VII~~ "~ ' ~ I r, ~'~~:~ ~.,.:eh - ~~ _ ~;.,, ~ 'dry '~, lLfllal]r Friii Msar f 1' ~k- V w- o>ws~ll. i „ ,_ ~ PDpNlfi!' J ,`~~..,,~., l.' _J~` W ~ ~r .. f iJ~tt Ll ~~ M ltirlrltR Auld A] d i .11,d(}.'IRA rl~ ~~,` ~ V i ~F'~ t ~~r'r~ ih7Gii~ r f 1. n t M., ,, II . `,~ ~- ~ + I -,.. ~~~uure id1A~ i ,~ _ F~Ilel,.. .C y,p,'+y~ 'tAk~:lravr~e IC`{, rl.~ i1~9' r~ ~`irl~tl~ .C ~ ~ 'SS~~ .rte' ,~~ it ,XS ~.~_+i A., _. ~ ~ ~ r ~ r ~,. 4 ~ I' x ~ ~ ,c ~~~, JdGn;rrra114s~ r'.,I ~ ~:`~ 1 i ajJO~tS Im I': 1 1 ~r ~~.. ~` `~ I ~ '~ ~ ~ Cane Creek 1 ~ r'~ IlliE 4 ~ r";f ~` ~' ~~ j tr~jntar ' 4 + r• Project Vicinity 1 *rr 1 ri {,"~ rl .~i M1 Ple®+J~np ~6ltrll+~rr1 1 ,(r~. ~` i ~~ ~y ,41 ~~ ~ .J. iSiN r.~ ~; ~+.,, r '~+ -~ _ „ ji ARN IrGtdh ~ °~?i~ u`' s ir'• B~rrirrr Mdii r'Gf 1 L_, °' I ,• ~ ' t ^ .~ 'Y p rlwa 11~' ~Ixlra L E I y !,rte ii'ACkyrlRtMw~ 'i i G L.,I! '~ .7 4 ,~_ -•, ~,~ _ ~ IwerraAr - _ ~~ ~~ 1~'rt ~ t,'M tlo igle 1 ~!w t'° +' r•Mr,.~~i1rm~ tSrl ~ ~r~nbt ~~ ~C ~~ +"~'~ L,-, R1~1 _ ._ ,_. r 'I .~ t + 1 We. ~4 ~~1 ~ 1 1 ~ ) ~~ L, J ,~'+. CAKE +: i 1 "'rA 4'..,r i.. 1 I N rl 1 ti:'~ 'x; i ~ r J r ,y~{/ ~y'S 1 t~ 1 /' ~ 1 .~ ` ti sa!• X _ _ ._,r. ~` Mamas t ~~ r, .r' rrcpz i aryrdi,ra'Ira~~„`tih.-, r rkllan MI le4d ('~ ri iiilrf -7 ~~rig~ °.~ ~~,.^ ~~ ~ ~- yJY p~~ Pa*;'' ~,i6urS Filrrrisl...".,zr w~ ~ ' -{ ~~ r ' UM, i~rr^k?+1 +~S9alir.l^s _.r#~.:°I'1 ,ualnrtMltia ,~ ', S G slErlltrs~.ti II ~-, i t r R fYaMrr9 r t r~r Figure 1. Mecklenburg County and the project area. Base map: U.S.G.S State of North Carolina Scale: one inch =eight miles f ~~ 0 7. 0 6 4 0 4 ~ , a. 0 7 0 6 40 4 TOPO! map printed on 02/02/07 from "North Garolina.tpo" and "total site survey 3.tpg" 5 j(OOOm E, Sj]OOOm E, 5180[]Om E. NHUL1 LOn2 115 ~1~J uvum t, • _."'"'_T'~"".~.------ h.-~-`~ ` -'fir' 1 5 ~ . ~ . ~~..<~,~ y '~ i ` ~, rP"4. l ~ ~ } ~ o ~~-~ ~ _-~ -- t\., mi '+~ r 1l j _L ~F~<r ~ 1~~----~_r~' % ~~ ~1~ 1 1 ~ ~,~`~ {~, E) 4~ ~~ l ~~/"'r ~. ~~I~ ~ ~ fT~ oa ~~ r,.;.~ 1 }/fit '~ ~ ~ : ~. 'in J / ~'!, I ~~^.,'1,~ ' ~t18 ~, rZ ~~ ~'" 1 I ~ ~ ' t ~- ~ '~ , 1~~~=`-~ \ ~ r ~ ~a '' ~ . . r l ~ r ~ Y - a, ~ ~ 1 S ~ ~..~ y, .. ~ s ~ ~ ~ Cane Creek 1 \ ' \y ~ -'~ '~. ~ ~ ~ , ,p -. ~ ``LV {' . , ~ ~1~~\t I; -•. ~ ~r-y ~~ ~ ! /~ f f ~ '` dCtord r 9 ~~ r,C ~l E ~ ? .., ,,,~ '`r~. -~' _ -~."~ " t, ' .. ~ r_ - .._.-.,, `.°.-- .. - 5 ; yam- - -- , f: Field.. ,...-.-J_ r ' ' ~ ' r~ e f ~ _~, : .. ~- . . . +.... ~ t` - 4•;o~.J ~ I r r ~, _ ,.,, Possible shveture ~ "'ti/: t ~ ~ ~ ~ F ~ ~,r 4l r ( '% z ~?"~'~r ~ ~ ~ ~ 1 .~~- li..'~' , " ~ r1~4~ L t ^. ,, ~ 5 ~`1 identified on 1920's il' . ~'~ ~ - ur - ~ ~ (~ , ,~`~ 1\/ ' ~~~ • , ` ~~~ ~' f , ~I ((~~~~ ~ ` ~, _ ~, (i~~ ~ J) ~`~~ ! J ..~ , \, ~ ~ _ ~ ~ . r t i \ s map. so ' ~l ~y, f ~ ~ I ~J ~;(- ,~ ~ tr ~ ~ ~ ~ ' Z r :_ ~~1~ ` Revised ro osedcorridor ~l ,~ ~% t "~ r~ ~ ~. '" '._i I ' ~~ ~~~ti~l s e N Z 0 0 0 0 m Initial proposed corridor Z E iD Z E °o 0 In .-~ a n~~~ 0 .b 1 MIIC 4 1000 FEET 0 500 t00D METERS Print® OPO! X2001 National G>otraphic Holdings (u~cm~.topo corn)