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20180975 Ver 2_Mit Plan for PN_20200309ID#* 20180975 Version* 2 Select Reviewer:* Katie Merritt Initial Review Completed Date 02/26/2020 Mitigation Project Submittal - 2/26/2020 Is this a Prospectus, Technical Proposal or a New Site?* r Yes r No Type of Mitigation Project:* r- Stream r Wetlands V Buffer V Nutrient Offset (Select all that apply) Project Contact Information Contact Name:* Timothy Morris Project Information ............................................................................................................................................................................... ID#:* 20180975 Existing IDI Project Type: r DMS r Mitigation Bank Project Name: Black Bull Buffer Mitigation Plan County: Alamance Document Information Email Address:* tim.morris@kci.com Version: *2 Existing Version Mitigation Document Type:* Mitigation Plans File Upload: Black Bull Buffer Plan final 2020.02.12 original 29.12MB size.pdf Rease upload only one RDFof the corrplete file that needs to be subrritted... Signature Print Name:* Tim Morris Signature: Buffer Mitigation and Nutrient Offset Plan Black Bull Restoration Site Cape Fear River Basin Jordan Lake Watershed, Haw River Arm HU 03030002040080, South Prong Stinking Quarter Creek February 2020 PREPARED BY: K C I KCI Associates of North Carolina, PC 4505 Falls of Neuse Rd, Suite 400 Raleigh, NC 27609 (919) 783-9214 Table of Contents 1.0 PROJECT LOCATION AND DESCRIPTION............................................................................................1 1.1 Introduction..................................................................................................................................1 1.2 Parcel Location..............................................................................................................................1 2.0 PROJECT AREA — EXISTING CONDITIONS..........................................................................................1 2.1 Parcel Features..............................................................................................................................2 2.2 Parcel Soils....................................................................................................................................3 2.3 Existing Vegetative Communities.................................................................................................3 2.4 Threatened and Endangered Species...........................................................................................3 2.5 Cultural Resources........................................................................................................................4 3.0 PROPOSED RIPARIAN RESTORATION, ENHANCEMENT, AND PRESERVATION PLAN........................4 3.1 Parcel Preparation........................................................................................................................4 3.2 Riparian Restoration and Planting Plan........................................................................................5 3.3 Riparian Enhancement..................................................................................................................5 3.4 Riparian Preservation....................................................................................................................6 4.0 MONITORING AND MAINTENANCE PLAN.........................................................................................6 4.1 Monitoring Protocol......................................................................................................................6 4.2 Parcel Maintenance......................................................................................................................7 4.3 Easement Boundaries and Fencing...............................................................................................7 4.4 Ownership and Long -Term Management.....................................................................................7 5.0 FINANCIAL ASSURANCE.....................................................................................................................8 6.0 MITIGATION POTENTIAL...................................................................................................................8 7.0 REFERENCES....................................................................................................................................11 Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site Jordan Lake, Haw Arm i TABLES Table 1. Viable Hydrologic Features.............................................................. Table 2. Parcel Soil Characteristics................................................................ Table 3a. Planting List —Woody Species........................................................ Table 3b. Planting List — Permanent Herbaceous Seed Mix .......................... Table 4. Planned Maintenance...................................................................... Table 5. Credit Determination Summary....................................................... Table 6. Maximum Potential Nutrient Offset Credit Conversion ................... Table 7. Credit Release Schedule................................................................... FIGURES ........................................... 3 ........................................... 3 ........................................... 5 ........................................... 5 ........................................... 7 ........................................... 9 .........................................10 .........................................10 Figure1. Service Area Map.........................................................................................................................15 Figure2. Vicinity Map.................................................................................................................................16 Figure3. Site Map.......................................................................................................................................17 Figure4. Soils Map......................................................................................................................................18 Figure5. Buffer Mitigation Map.................................................................................................................19 APPENDIX Detailed Credit Table DWR Stream Determination Letter 10/9/2018 NCDWR Site Viability Letter 11/15/2018 Conservation Easement and Plat USFWS Response Letters 5/15/2018 and 10/1/18 NC SHPO Response Letter 10/1/2018 NC Natural Heritage Program Response Letter 10/24/2018 Parcel Photo Log Historic Aerial Photographs Construction Plan Sheets Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site Jordan Lake, Haw Arm ii 1.0 PROJECT LOCATION AND DESCRIPTION 1.1 Introduction The Black Bull Buffer Mitigation and Nutrient Offset Bank Parcel ("Parcel") is a buffer mitigation and nutrient offset bank being proposed to the North Carolina DEQ, Division of Water Resources (DWR) under the conditions of the Black Bull Mitigation Banking Instrument made and entered into by KCI Technologies, Inc. This Buffer Mitigation and Nutrient Offset Plan (Plan) has been developed following the guidelines and rules found in the Consolidated Buffer Rules 15A NCAC 02B .0295 for riparian buffer mitigation and 15A NCAC 02B .0240 for nutrient offset. The Parcel is located in west -central portion of Alamance County on land currently mostly used for agriculture and grazing. The Parcel offers the chance to restore impacted pasture and agricultural lands to forested, functional riparian areas. A concurrent stream and wetland mitigation plan has been submitted to the US Army Corps of Engineers, Wilmington District, and its North Carolina Interagency Review Team (IRT) as well. The Parcel has been designed to provide buffer mitigation and nutrient offset credits for unavoidable buffer and nutrient impacts within the Haw Arm of the Jordan Lake watershed. There are four main project tributaries (T1, T2, T3, and T4) to South Prong Stinking Quarter Creek along with two ephemeral drainages (T2-1 and T5). The project is anticipated to produce approximately 16.64 acres of riparian buffer mitigation and/or nutrient offsets where eligible. In general, most of the riparian areas dedicated to riparian buffer mitigation or nutrient offset will be a minimum of 50' from tops of banks and a maximum of 200' from tops of banks. A vicinity map of the Parcel is shown in Figure 1 and the proposed service area is displayed on Figure 2. 1.2 Parcel Location The Parcel is located in west -central Alamance County north of the intersection of Friendship Rock Creek Road and Boyd Wright Road with a centroid of approximately 35.9803 N,-79.4845 W. The bottom of the Parcel is approximately 4,000 linear feet upstream from the South Prong Stinking Quarter Creek. The project is located in the Jordan Lake Watershed, Haw River Arm, South Prong Stinking Quarter Creek HU 03030002040080. The site may produce 2,249.36 Ib/ac of nitrogen offset at a 53% delivery factor or 143.81 Ib/ac of phosphorus offset at 51% delivery factor. The project is found in the USGS Snow Camp Quadrangle. 2.0 PROJECT AREA — EXISTING CONDITIONS The Parcel has experienced significant landscape and vegetative modifications to allow for agriculture and livestock management along the four project streams, T1, T2, T3, and T4. This is evidenced by direct runoff from agricultural open space along parts of the stream where there is no riparian buffer and that livestock have direct access to the project reaches. Parcel photographs are provided in the appendix from January 2019; there have been no changes in any way compared to what was observed and noted in the site viability letter. T1 begins at the southwestern boundary of the property, approximately 330 linear feet (If) downstream of Friendship Rock Creek Road. The project reach begins just downstream of an existing ford crossing. There is a partial canopy provided by isolated riparian species, but the trees are small early successional individuals. The stream has been channelized, and agricultural fields are located immediately adjacent to both sides of the stream. During channelization or as part of agricultural practices, spoil piles have been Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 1 placed along the tops of the stream banks in many locations. These spoil piles have become partially vegetated, but they prevent diffuse flow through the riparian areas. From the confluence with T2, T1 continues to flow north for approximately 432 If through agricultural fields until it reaches a treeline. Downstream of this point, the stream leaves agricultural land and enters a partially forested reach. After another 795 If, T1 passes under a fenceline and enters a partially forested pasture. There are scattered riparian species and Chinese privet present in this section. After leaving the project easement, T1 continues for approximately 4,000 If before reaching the confluence with South Prong Stinking Quarter Creek, the nearest named stream. T2 comes onto the project at the southeastern corner of the easement as an intermittent stream. This section of T2 has mature trees surrounding it, but still has been impacted by grazing that has degraded the banks and limited the development of an understory riparian community. After 299 If, the stream meets an incoming unnamed ephemeral channel and transitions to a perennial stream. Part of the stream flow is then routed through a 0.6-acre farm pond, and the rest of the flow continues around the southern edge of the pond. Shortly after the pond, another ephemeral drainage, T2-1, enters from the north. Downstream of this confluence, the land use transitions to a more heavily impacted pasture with fewer mature trees; cattle wallow areas are common. T2 flows for another 558 If after the confluence with T2- 1 until it reaches Friendship Rock Creek Road. Another ephemeral drainage, T5, enters T2 just upstream of the road; it has no riparian vegetation and runs through pasture. Downstream of the road, T2 has limited, sparse riparian vegetation and frequent spoil piles along the channel; beyond that are agricultural fields. T3 is an intermittent stream that flows out of a pond and through approximately 1,240 If of agricultural land before reaching the project easement. Once on -site, the stream then travels 277 If until the confluence with T1. There is a partially forested buffer that is providing rooting strength to the channel, but cattle also have access to the stream and have further degraded the stream banks. T4 is in a similar landscape position to T3 and is fed by a pond approximately 1,000 If upstream of the project. Above the site, T4 flows through forested land until it comes onto the Parcel just upstream of the end of T1. Historic aerials were examined for any information about how the site has changed over recent history and are included in the Appendix from 1950, 1964, 1973, 1980, 1993, and 2014. From this photographic record, it is apparent that the area surrounding the project site has been used for agriculture for many years. In the 1950 aerial, the site had already been cleared and was being utilized for agriculture. Between 1950 and 1964, the farm ponds upstream of the site's tributaries were constructed. The site and surrounding area has remained relatively unchanged since 1964. 2.1 Parcel Features The following hydrologic features listed in Table 1 and shown in Figure 3 are eligible for buffer mitigation and/or nutrient offset. A representative from the North Carolina DEQ, DWR performed a site viability determination for riparian buffer mitigation and nutrient offset potential on October 30, 2018 and KCI received a viability letter dated November 15, 2018. The letter is included in the Appendix. Two of the features identified by DWR (T6 and T7) are ditches and have not been included in this project for credit. Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 2 Table 1. Viable Hvdrologic Features Feature Name Feature ID from DWR Assessment Stream Type Buffer Credit Viable Nutrient Offset Viable T1(a) T1(a) Perennial Yes Yes for agricultural fields only T1(b) T1(b) Perennial Yes No T1(c) T1(c) Perennial Yes Yes for non -forested areas only T2(a) T2(a) Intermittent Yes Yes for non -forested areas only T2(b) T2(b) Intermittent Yes I Yes for agricultural fields only T2-1 T2-1 Ephemeral Yes Yes for non -forested pasture only T5 T5 Ephemeral Yes Yes for non -forested pasture only 2.2 Parcel Soils According to the Alamance County Soil Survey, the soils within the project site are mapped as Chewacla loam and Enon clay loam (see Figure 4) (USDA 2018). Table 2. Parcel Soil Characteristics Soil Name Location Description Chewacla (ChA) Mapped along all of T1, Chewacla is frequently flooded and found on flood plains on river valleys. The T2(b), T3, and T4 parent material consists of loamy alluvium derived from igneous and metamorphic rock. The natural drainage class is somewhat poorly drained. Enon clay loam Mapped along T2(a), T2- The Enon series consists of very deep, well drained, slowly permeable soils on (EoC2) 1, and T5 ridgetops and side slopes in the Piedmont. They have formed in residuum weathered from mafic or intermediate igneous and high-grade metamorphic rocks such as diorite, gabbro, diabase, or hornblende gneiss or schist. The parent material consists of residuum weathered from diorite and/or gabbro and/or diabase and/or hornblende gneiss. 2.3 Existing Vegetative Communities The majority of the Parcel consists of active pasture and agricultural fields interspersed with mature overstory species in select locations. The beginning of T1(a) is within existing agricultural fields with sparse riparian vegetation running along the tops of the banks with species such as red maple (Acer rubrum), sugarberry (Celtis laevigata), eastern redcedar (luniperus virginiana), and sweet gum (Liquidambar styraciflua). T1(b) enters a section with a wider forested riparian area of similar species plus mixed oaks and green ash (Fraxinus pennsylvanica), but still lacking an understory community. Chinese privet (Ligustrum sinense) is also scattered throughout the buffers of T1(b) and T1(c). At the bottom of the project, both T3 and T4 have similar vegetative community types as T1(c). At the top of T2(a), the vegetation consists of red maple, mixed oaks, sweetgum, and sugarberry, but has no viable understory due to grazing. Further down on T2(a) within pasture, there are fewer mature trees; scattered redcedar are found along the tops of the bank. T2-1 has dense Chinese privet along its upper portion, and T5 has no established vegetation. Below Friendship Rock Creek Road, T2(b) has the same type of limited riparian vegetation as found along T1(a) in between agricultural fields. 2.4 Threatened and Endangered Species The US Fish and Wildlife Service's list of endangered and threatened species for Alamance County was reviewed. The only species listed for the County is the Cape Fear Shiner (Notropis mekistocholas). We communicated with USFWS for this species and they stated that minimal adverse impacts to fish and wildlife resources are anticipated and that there was no objection to the proposed activity (see Appendix for documentation). An inquiry to the North Carolina's Natural Heritage Program noted the presence of Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 3 the Natural Heritage Area of the Rock Creek Upland Depressions located in the forested area immediately upstream of T2. The area consists of basic oak -hickory forest (Element Occurrence 16064) and upland depression swamp forest (Element Occurrence 16540). The proposed work on the Parcel will not impact these areas. 2.5 Cultural Resources There are seven registered historic places within a one -mile radius of the subject property. Three of these sites are listed as "gone" (AM0090 — Coble Log House, AM0097 — W.C. Coble House, and AM0147 — Friendship Methodist Church). The remaining four sites are listed as "surveyed only" (AM0222 — Jordan Isley House, AM0303 — Martin Moser House, AM0328 — G.W. Patterson House, and AM0523 — Pike House). A request for project review to North Carolina's State Historic Preservation Office found no historic resources that would be affected by the project (see Appendix). 3.0 PROPOSED RIPARIAN RESTORATION, ENHANCEMENT, AND PRESERVATION PLAN 3.1 Parcel Preparation The proposed work at the Parcel will consist of the ecosystem restoration of riparian areas, streams, and degraded wetlands in order to uplift the functional capabilities of this integrated stream and wetland system. All of the riparian areas will be protected with a minimum of a 50'-wide conservation easement; the only exceptions to this are found at the top of T1(a) as the stream comes onto the Parcel at an angle, thus reducing the riparian width in this location. The project riparian buffers and other riparian areas will be planted as outlined in Section 3.2 and as shown on the project plan sheets in the Appendix. The riparian buffer credit and nutrient offset credit determination are outlined in Figure 5. The project streams (T1-T4) and ephemeral drainages (T2-1 and T5) will all be improved as part of a concurrent stream and wetland mitigation bank. The proposed activities described in this Plan include restoring, enhancing, and preserving riparian areas adjacent to mitigated streams. Streams proposed for stream mitigation are described in detail in the Black Bull Stream and Wetland Mitigation Plan. All riparian activities will occur in conjunction with stream and wetland construction activities and not before. Improvements to each of these features has been proposed based on the level of departure each of them exhibit from a stable stream system. In addition, approximately 3 acres of riparian wetland restoration will be implemented along portions of T2. As part of the wetland restoration, the farm pond will be drained and converted back to riparian wetland. No riparian buffer or nutrient offset credits are proposed within the pond bottom footprint. There are also three proposed culverted crossings that will be installed in addition to the existing crossing over Friendship Rock Creek Road; two ford crossings will be eliminated as a result. These crossings are necessary to provide private landowner access and will reduce sediment inputs typical from ford crossings. Additional water quality improvements will come from three water detention structures that will be installed within the easement at the end of field ditches to allow for water quality treatment: two structures on agricultural ditches identified by DWR as T6 and T7 entering T1(a) and one structure on T5 where it enters T2(a). These proposed structures will be approximately 50' long by 20' wide to allow for ponding and settling and each will have a rock outlet directing outflow into the respective streams. These structures will be planted similarly to the proposed restoration areas outlined in Section 3.2, but will not be used to generate riparian buffer or nutrient offset credit. The project construction plans included in Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 4 the appendix show a typical detail for these structures on Sheet 4, and the three proposed locations are indicated on Sheets 6, 7, and 10. 3.2 Riparian Restoration and Planting Plan All riparian areas proposed for restoration will be planted to establish a diverse forested riparian condition. Trees will be planted at a density of 968 stems per acre (9 feet x 5 feet spacing). Woody vegetation planting will be conducted during dormancy. Sheets 14-16 in the projects construction plans included in the appendix show the proposed planting lists and areas; native herbaceous planting mixes suitable for either winter or summer periods are shown on Sheet 20. Woody species to be planted may consist of the following and any substitutions from the planting plan will be taken from this list below: Table 3a. Planting List — Woody Species Common Name Scientific Name Wetland Status (Eastern Mts & Piedmont) Layer River Birch Betula nigra FACW Canopy Sugarberry Celtis laevigata FACW Subcanopy Flowering Dogwood Cornus florida FACU Subcanopy Persimmon Diospyros virginiana FACW Subcanopy Green Ash Fraxinus pennsylvanica FACW Canopy Tulip Poplar Liriodendron tulipifera FACU Canopy American Sycamore Platonus occidentalis FACW Canopy Swamp Chestnut Oak Quercus michauxii FACW Canopy Willow Oak Quercus phellos FAC Canopy River Birch Betula nigra FACW Canopy Table 3b. Planting List — Permanent Herbaceous Seed Mix Common Name Scientific Name % of Mix LB/acre Autumn Bentgrass Agrostis perennans 10 3.0 Big Bluestem Andropogon gerordii 8 2.4 Lanceleaf Coreopsis Coreopsis lanceolate 10 3.0 Virginia Wild Rye Elymus virginicus 15 4.5 Soft Rush Juncus effusus 3 0.9 Switchgrass Panicum virgatum 10 3.0 Black -Eyed Susan Rudbeckia hirta 10 3.0 Little Bluestem Schizachyrium scoparium 3 0.9 Indian Grass Sorghastrum nutans 3 0.9 Eastern Gamma Tripsacum dactyloides 3 0.9 SUBTOTAL 75 22.5 Winter Nurse Species (August 15-May 15) Rye Grain I Secole cereal 25 7.5 Summer Nurse Species (May 15-August 15) Pearl Millet Pennisetum glaucoma 25 7.5 TOTAL 100 30 3.3 Riparian Enhancement Riparian enhancement is proposed for areas outlined in the DWR site viability determination from October 30, 2018 where there is a mature or partially mature overstory of trees, but a limited understory in active pasture areas. Enhancement actions in these areas will involve fencing out all livestock to allow native herbaceous vegetation to become reestablished. Fencing to be installed is denoted on the Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 5 Boundary Marking Plan (Sheets 17-19) in the project construction plans in the appendix. Invasive species, primarily Chinese privet, will also be treated in these areas. In particular, a monoculture of Chinese privet along Tributary 2-1 will be treated as shown on Sheet 9 in the plans. Mechanical removal (including grubbing) will occur throughout the stream construction phase. Any debris from mechanical removal of privet and other invasive species will be burned on site as needed and according to the provided sediment and erosion control plans (Sheets 20-29). Following mechanical removal, KCI will follow up during the construction and monitoring phases with chemically treatment of the invasive species. Typical topical chemical treatment of Chinese privet involves using a tank mix of active ingredients triclopyr and glyphosate throughout the riparian areas of the easement using backpack sprayers. 3.4 Riparian Preservation Riparian preservation will include the existing riparian areas along T1(a) and T2(b) that run adjacent to agricultural fields. No additional action is proposed in these areas aside from restoring the project streams and treating any invasive species encountered. 4.0 MONITORING AND MAINTENANCE PLAN 4.1 Monitoring Protocol Vegetation monitoring will take place between the end of August and mid -December. The success of the riparian plantings will be evaluated using fourteen 0.02-acre square or rectangular plots within the restored riparian buffer in order to cover the 11.34 acres of riparian buffer restoration and enhancement (excluding enhancement areas in forested pasture). Eight plots will be permanently installed, while the remaining six will be randomly placed at the time of each monitoring visit. Vegetation must be planted and plots established at least 180 days prior to the start of the first year of monitoring. In the permanent plots, the plant's height, species, location, and origin (planted versus volunteer) will be noted. In the random plots, species and height will be recorded. Height will be used as a determination of plant vigor. In all plots, exotic and invasive stems will also be included in the stem counts, but not be counted towards the success criteria and will be monitored and treated so that none become dominant or alter the desired plant community of the site. Additionally, a photograph will be taken of each plot. Beginning at the end of the first growing season and no sooner than 5 months following planting, KCI will monitor the planted vegetation for riparian area success in monitoring years 1, 2, 3, 4, and 5 or until DWR approval is obtained. The vegetation within the areas proposed for riparian buffer credit must contain 260 stems per acre at the end of five years of monitoring. There should be a minimum of four native hardwood tree species with no species greater than 50% of the stems. For any volunteer tree stem to count toward vegetative success, it must be a species approved by the DWR, which could include species from the approved planting list included in Section 3.2 of this Plan. An annual site walk will be conducted by KCI at the end of each monitoring period to document any problem areas. The findings of the visual assessment as well as any recommended corrective actions for problem areas will be summarized in the monitoring reports. KCI will monitor the Stream and Wetland Mitigation Bank for 7 years or until release by IRT approval. Therefore, some plots placed within riparian restoration areas that are generating riparian buffer or nutrient offset credit may be monitored beyond Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 0 the 5 years as required by DWR under 15A NCAC 02B .0295 (n)(4). DWR will only assess the vegetation conditions of plots monitored under this Buffer Mitigation Nutrient Offset Plan. 4.2 Parcel Maintenance The Parcel will be monitored on a regular basis, with a physical inspection of the site conducted a minimum of once per year throughout the post -construction monitoring period. These site inspections may identify site components and features that require routine maintenance. Maintenance needs or actions will be recorded in the annual monitoring reports. The following items are examples of the potential maintenance issues that may arise at the Parcel. Table 4. Planned Maintenance Component/Feature Maintenance Through Project Close -Out Vegetation shall be maintained to ensure the health and vigor of the targeted plant Vegetation community. Any vegetation control requiring herbicide application will be performed in accordance with NC Department of Agriculture (NCDA) rules and regulations. Site boundaries shall be identified in the field to ensure clear distinction between the mitigation site and adjacent properties. Boundaries may be identified by fence, marker, Site Boundary bollard, post, tree -blazing, or other means as allowed by site conditions and/or conservation easement. Boundary markers disturbed, damaged, or destroyed will be repaired and/or replaced on an as needed basis up until the project is closed out. The site will be monitored for the presence of beaver or other fauna that may impact the Beaver and Other success of the project. Adaptive management approaches will be used to evaluate whether Nuisance Fauna or not beaver or their structures or other animals should be controlled or managed at the site. In order to comply with 0295 (o)(6), KCI will conduct a visual assessment in order to determine that: • Fencing is in good condition throughout the site; Cattle Exclusion no cattle access within the conservation easement area; Areas no encroachment has occurred; • diffuse flow is being maintained in the conservations easement area; and • there has not been any cutting, clearing, filling, grading, or similar activities that would negatively affect the functioning of the riparian buffer. 4.3 Easement Boundaries and Fencing The project will be demarcated with easement markers spaced along the boundary a maximum of every 100'. Livestock exclusion fencing will be installed on T2(a), T2-1, and T5 above Friendship Rock Creek Road and along T1(c) and T3 where active grazing still takes place. 4.4 Ownership and Long -Term Management The Parcel shall be established under the terms and conditions of the MBI referenced in Section 1.0 of this Plan. The privately -owned land required for the construction, management, and stewardship of the project will be protected under a permanent conservation easement. The easement document and plat are included in the Appendix. The Point of Contact for the sponsor is: Tim Morris, Project Manager KCI Technologies, Inc. 4505 Falls of Neuse Road, Suite 400 Raleigh, NC 27609 Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 7 Phone (919) 278-2511 / Fax (919) 783-9266 / tim.morris@kci.com The easement will be held by Atlantic Coast Conservancy (ACC). They shall be responsible for periodic inspection of the site to ensure that restrictions required in the conservation easement are upheld. 5.0 FINANCIAL ASSURANCE After approval of this Plan for the Parcel by DWR, the Bank Sponsor shall furnish a performance bond from a surety that is rated no less than an "A" as rated by A.M Best in the amount of 100% of the reasonable estimate to complete buffer mitigation in accordance with the Plan. The Bank Sponsor shall ensure the Performance Bond shall remain in effect in the full amount required by this MBI throughout the performance of construction and planting to establish and restore riparian buffers and other riparian areas in accordance with the Plan. The fully funded amount will be $175,000. In lieu of posting the performance bond, the Bank Sponsor may elect to construct the project prior to the first credit release. In that case no performance bond will be necessary. After completion of the restoration/construction, a separate performance monitoring/maintenance bond will be secured for 100% of the estimated cost to implement the monitoring and maintenance plan (estimated at $75,000), but not less than $100,000. The performance monitoring/maintenance bond shall apply at the inception of the monitoring period for a term of two years, to be renewed every two years for a minimum of five years. Upon DWR approval, this bond premium may be lowered each year based on the adjusted cost to complete the monitoring and maintenance work. Confirmation of renewal will be provided to DWR with each annual monitoring report. DWR reserves the right to alter the credit release schedule if monitoring reports are submitted without proof of bond renewals. Financial assurances in the form of bonds provided in this section must be separate from the financial assurances provided as part of the stream and wetland mitigation bank. 6.0 MITIGATION POTENTIAL The project easement will protect 22.1 acres for the totality of the buffer mitigation, nutrient offset, and stream and wetland mitigation components. Of this, 16.64 acres are dedicated to generating riparian buffer credits, which excludes areas within the wetted perimeters of the streams, wetland mitigation, and land ineligible for buffer credit (pines). Within this buffer mitigation credit area, 9.31 acres of land have been determined by DWR as being agricultural and worthy of riparian restoration and thus are eligible for either buffer credit or nutrient offset credit, but not both, based on DWR's site viability assessment. If KCI elects to use any of the 9.31 acres for nutrient offset credits instead of riparian buffer credits, then based on delivery factors for the 14-digit (HU 03030002040080 South Prong Stinking Fork Creek), the Parcel is expected to produce a maximum of 11,057.46 lb of nitrogen offset at 2,249.36 Ib/ac with a 53% delivery factor or 680.27 lb of phosphorus offset at 143.81 Ib/ac with a 51% delivery factor. Table 5 below outlines the total asset summary proposed at the site; Table 6 presents the alternative crediting scenario for conversion of remaining buffer to nutrient credit for the eligible 9.31 acres. A detailed table showing the calculations per tributary, buffer width category, and mitigation type is included in the Appendix. The Sponsor must submit a written request and receive written approval from DWR prior to any credit conversions and transfers to the riparian buffer and nutrient offset credit ledgers. With each conversion and transfer request submitted to the DWR, the Sponsor will provide all updated credit ledgers showing all transactions that have occurred up to the date of the request. All transactions must be compliant with the MBI prior to DWR approving the transfer request. Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 8 Table S. Credit Determination Summary Feature Type Riparian Zone Credit Type Buffer Treatment Existing Acreage Creditable Acreage Riparian Buffer Mitigation Credits Nutrient Offset Credits*** Ratio % Full Credit acres sq feet Nitrogen Phosphorus Generated Credits Delivered Credits Generated Credits Delivered Credits >20'TOB- < 30' Riparian Buffer Riparian Restoration 0.02 0.02 1:1 75% 0.01 499 >20'TOB- < 50' Riparian Buffer Riparian Restoration 0.03 0.03 1:1 100% 0.03 1,293 TOB - 50' Riparian Buffer Riparian Restoration 6.95 6.95 1:1 100% 6.98 302,689 51-100' Nutrient Offset Riparian Restoration 2.86 2.86 - - - - 6,430.92 3,407.96 411.15 209.66 51-100' Riparian Buffer Riparian Restoration 0.14 0.14 1:1 100%1 0.14 6,042 Intermittent 101-200' Riparian Buffer Riparian Restoration 0.30 0.30 1:1 33% 0.10 4,240 TOB - 50' Riparian Buffer Riparian Enhancement 3.42 3.42 2:1 100% 1.71 74,564 51-100' Riparian Buffer Riparian Enhancement 0.81 0.81 2:1 100% 0.41 17,682 101-200' Riparian Buffer Riparian Enhancement 0.27 0.27 2:1 33% 0.04 1,916 TOB - 50' Riparian Buffer Riparian Preservation 1.29 1.29 10:1 100% 0.13 5,628 51-100' Riparian Buffer Riparian Preservation 0.01 0.01 10:1 100% <0.01 39 Subtotal 16.09 9.52 414,591 6,430.92 3,407.96 411.151 209.66 >20'TOB- < 50' Riparian Buffer Riparian Restoration 0.18 0.18 1:1 100% 0.18 7,975 TOB - 50' Riparian Buffer Riparian Restoration 0.11 0.11 1:1 100% 0.11 4,624 Ephemeral* 51-100' Riparian Buffer Riparian Restoration <0.01 <0.01 1:1 100% <0.01 28 TOB - 50' Riparian Buffer Riparian Enhancement 0.25 0.25 2:1 100% 0.13 5,510 51-100' Riparian Buffer Riparian Enhancement <0.01 <0.01 2:1 100% <0.01 56 Subtotal 1 0.55 0.421 18,1911 0 0 i 0 0 Total 16.64 9.94 432,783 6,430.92 3,407.96 1 411.15 209.66 Total Restoration 7.72 7.52 327,390 Total Enhancement 4.76 2.29 99,727 Total Preservation** 1.30 0.13 5,666 Total Nutrient Offset 2.86 * Ephemeral features make up 4% of the square footage of creditable buffer mitigation; **Preservation features make up 9% of the square footage of creditable buffer mitigation. *** Delivery factors of 53% and 51% used for nitrogen and phosphorus, respectively. Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) Table 6. Maximum Potential Nutrient Offset Credit Conversion Credit per Acre Generated Delivery Factor Feature Type Zone Treatment Creditable (Ibs/acre) Credits (Ibs) (Ibs/30 yrs) Delivered Credits Type Acreage N P N P N P N P Riparian TOB - 50' 6.12 2,249.36 143.81 13,769.59 880.34 53% 51% 7,297.88 448.97 Restoration Riparian 51-100' 2.86 2,249.36 143.81 6,430.11 411.10 53% 51% 3,407.96 209.66 Restoration Intermittent Riparian 101-200' 0.30 2,249.36 143.81 663.44 42.42 53% 51% 351.62 21.63 Restoration Subtotal 9.28 20,863.141,333.86 11,057.46 680.27 Riparian TOB - 50' 0.03 2,249.36 143.81 72.45 4.63 53% 51% 38.40 2.36 Restoration Riparian Ephemeral 51-100, <0.012,249.36 143.81 1.42 0.09 53% 51% 0.75 0.05 Restoration Subtotal 0.03 73.87 4.72 39.15 2.41 Total 9.31 20,937.01 1,338.58 11,096.61 682.68 Note: Riparian Restoration Areas in this table represent only areas within aericultural fields. Four project ledgers will be maintained for the Parcel: - Buffer Restoration including all areas viable for buffer mitigation AND nutrient offset credit (as shown in Table 6). - Buffer Restoration areas ineligible for nutrient offset conversion, Enhancement, and Preservation buffer mitigation. Nitrogen offset in pounds and acres. Phosphorus offset in pounds and acres. Transactions will be reviewed by DWR during the annual credit sale audit. The credit release schedule is shown in Table 7. Table 7. Credit Release Schedule Task Project Milestone Percent Credit Available for Sale 1 Instrument and Plan Approved by DWR, Conservation Easement Recorded* and Financial Assurance Posted 25 2 Mitigation Site Earthwork, Planting and Installation of Monitoring Devices Completed, all applicable permits obtained 20 3 Monitoring Financial Assurance Posted and Approval of As -Built Report 10 4 Monitoring Report #1: Approved by the DWR and financial assurance renewed 10 5 Monitoring Report #2: Approved by the DWR and financial assurance renewed 10 6 Monitoring Report #3: Approved by the DWR and financial assurance renewed 10 7 1 Monitoring Report #4: Approved by the DWR and financial assurance renewed 5 8 1 Monitoring Report #5: Approved by the DWR and final site visit by DWR has been conducted 10 Total 100% Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 10 7.0 REFERENCES USDA, Natural Resources Conservation Service. 2019. Web Soil Survey. Last accessed at: http://websoiIsurvey.sc.egov.usda.gov/App/WebSoiISurvey.aspx Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 11 Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 12 FIGURES Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 13 Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 14 ROCKINGHAM I CASWELL I PERSON Proposed Easement (22.1 ac) Y Alamance L\ GUILFORD 11 R4 ALA MANCE ORANGE Qoc RANDOLPH CHATHAM LEE Be�lemont Aiamat%oc Rd N,S u A a 'N'9 62 — a G Hi 9t' � 5N m E Y 01 11. G �a e 2ci Q c Misr ay ._. ./% s FIGURE 1. PROJECT VICINITY MAP N 0 1,500 3,000 BLACK BULL BUFFER MITIGATION AND NUTRIENT OFFSET BANK Image Source: ESRI Feet ALAMANCE COUNTY, NC A World Street Map Buffer Mitigation and Nutrient Offset Plan Black Bull Buffer Mitigation and 212020 15 Nutrient Offset Bank Ma EE an bl lson ii dal e Summertield O d Ridge Greensboro A 1i-hf.jo i y Haw River Arm Lih-rt: Burli ngton Bank Location Jordan Lake Watersheds Haw River Arm (Service Area) Yan ceyv i I I e Project 14-digit HU (040080) Its'1 M eb ar Hillsborough v urhar I,-�11-1 Hill Upper New Hope Lower New Hope % Ho qu 34 Uwharrie National Fore st i 11 I '-22 Troy B scoe R P FIGURE 2. SERVICE AREA MAP N 0 4.25 8.5 BLACK BULL BUFFER MITIGATION AND NUTRIENT OFFSET BANK Image Source: ESRI Miles ALAMANCE COUNTY, NC A World Street Map Buffer Mitigation and Nutrient Offset Plan Black Bull Buffer Mitigation and 212020 16 Nutrient Offset Bank 5 T2(a)1 1 T1(a) FIGURE 3. SITE MAP N 0 200 400 BLACK BULL BUFFER MITIGATION AND NUTRIENT OFFSET BANK Image Source: NCOneMap Feet ALAMANCE COUNTY, NC A Orthoimagery, 2018. Buffer Mitigation and Nutrient Offset Plan Black Bull Buffer Mitigation and 212020 17 Nutrient Offset Bank Alamance County NRCS Soils D 0 Ego Proposed Easement (22.1 ac) ` ` 5W p §� Vi: •lL=/ 0 0 �y� ic,any�� �IIU ' 0 0 0 r 0 0 0 0 0 0 EDO b 0 0 0 F.. 0 0" gyp±•' F'rr... i`�'_' "4 d FIGURE 4. NRCS SOILS MAP N 0 255 510 BLACK BULL BUFFER MITIGATION AND NUTRIENT OFFSET BANK Image Source: NCOneMap Feet ALAMANCE COUNTY, NC A Orthoimagery, 2018. Buffer Mitigation and Nutrient Offset Plan Black Bull Buffer Mitigation and 212020 18 Nutrient Offset Bank Easement (22.1 acres) - Proposed Streams Drainage Breaks by Tributary Buffer Restoration / Nutrient Offset (pasture) 1.98 ac Buffer Restoration (pasture) 0.29 ac T4 Buffer Restoration / Nutrient Offset (fields) 7.33 ac of which 2.86 ac are Nutrient Offsets Buffer Restoration (fields) 0.69 ac Buffer Enhancement (forested pasture) 4.05 ac �. * Buffer Enhancement (partially forested w/privet) 0.71 ac Buffer Preservation (forested fringe) 1.30 ac ' No Credit (existing pines) 0.64 ac Riparian Buffer Widths AV- � Less than 20' (0.016 ac) - No Credit T3 > 20' TOB to < 30' (0.015 ac) > 20'TOB to < 50'(0.213 ac) `x > 20' TOB to 50' (12.427 ac) 51-100' (4.103 ac) "7 101-200' (0.561 ac) ! Vegetation Plots (10 permanent, 4 random) ., �� �� ifs � ��� ,M1 _. .. .. �R•: A �' �.�`.'j�•'. P r f 0 • 0 140 f T2(b) FIGURE 5. BUFFER MITIGATION MAP 280 BLACK BULL BUFFER MITIGATION AND NUTRIENT OFFSET BANK Feet ALAMANCE COUNTY, NC N AImage Source: NC OneMap Orthoimagery, 2018. Buffer Mitigation and Nutrient Offset Plan 212020 19 Black Bull Buffer Mitigation and Nutrient Offset Bank APPENDIX Bank Parcel Development Package for Black Bull Buffer Mitigation and Nutrient Offset Bank Jordan Lake, Haw Arm Bank Parcel Development Package for Black Bull Buffer Mitigation and Nutrient Offset Bank Jordan Lake, Haw Arm Detailed Credit Table Bank Parcel Development Package for Black Bull Buffer Mitigation and Nutrient Offset Bank Jordan Lake, Haw Arm Bank Parcel Development Package for Black Bull Buffer Mitigation and Nutrient Offset Bank Jordan Lake, Haw Arm Buffer Mitigation Nutrient Offset Credit per Acre (Ibs/acre) Delivery Factor (Ibs/30 yrs) Delivered Credits Stream Category Riparian Buffer Treatment Reach ID/ Component Buffer Zone Category (ft) Creditable Area (sf) Riparian Credit Ratio % Full Credit Riparian Buffer Credits Convertible to Nutrient Offset (Yes or No) Acres Nitrogen Phosphorus Nitrogen Phosphorus Nitrogen Phosphorus Intermittent Restoration T1(a) >20 TOB but <30' 666 1 75% 499 No Intermittent Restoration T3(a) > 20 TOB but <50' 1,293 1 100% 1,293 No - - Intermittent Restoration T3(a) TOB to 50' 154,651 1 100% 154,651 Yes 3.550 2,249.36 143.81 53% 51% 4,232.53 260.39 Intermittent lRestoration T1(a) 51-100, 59,914 1 100% Yes 1.3751 2,249.36 143.81 53% 51% 1,639.74 100.88 Intermittent Restoration Tl(b) TOB to 50' 36,034 1 100% 36,034 No - - Intermittent Restoration T3(b) 51-100, 6,042 1 100% 6,042 No - - Intermittent Enhancement T1(b) TOB to 50' 27,477 2 100% 13,738 No - - Intermittent Enhancement T1(b) 51-100, 3,288 2 100% 1,644 No Intermittent Restoration T1(c) TOB to 50' 7,775 1 100% 7,775 Yes 0.178 2,249.36 143.81 53% 51% 212.78 13.09 Intermittent Restoration Tl(c) 51-100, 2,357 1 100% - Yes 0.054 2,249.36 143.81 53% 52% 64.52 3.97 Intermittent Enhancement T1(c) TOB to 50' 58,612 2 1 100% 29,306 No - - Intermittent Enhancement T1(c) 51-100, 5,537 2 100% 2,768 No Intermittent Enhancement T1(c) 101-200' 705 2 33% 116 No - - Intermittent Restoration T2(a) TOB to 50' 29,761 1 100% 29,761 Yes 0.683 2,249.36 143.81 53% 51% 814.51 50.11 Intermittent Restoration T2(a) 51-100, 26,915 1 100% - Yes 0.618 2,249.36 143.81 53% S1%j 736.62 45.32 Intermittent Restoration T2(a) 101-200' 12,848 1 33% 4,240 Yes 0.295 2,249.36 143.81 53% 51% 351.62 21.63 Intermittent Enhancement T2(a) TOB to 50' 20,784 2 100% 10,392 No - - Intermittent Enhancement T2(a) 51-100, 22,359 2 100% 11,180 No - - Intermittent Enhancement T2(a) 101-200' 7,935 2 33%1 1,309 No - Intermittent Restoration T2(b) TOB to 50' 71,119 1 100% 71,119 Yes 1.633 2,249.36 143.81 53% 51% 1,946.39 119.74 Intermittent Restoration T2(b) 51-100, 33,491 1 100% - Yes 0.769 2,249.36 143.82 53% 51% 916.59 56.39 Ephemeral Restoration T2-1 TOB to 50' 3,221 1 100% 3,221 No - - Ephemeral Enhancement T2-1 TOB to 50' 11,019 2 100% 5,510 No Ephemeral Enhancement T2-1 51-100, 112 2 100% 56 No Intermittent Restoration T3 TOB to 50' 3,350 1 100% 3,350 Yes 0.077 2,249.36 143.81 53% 51% 91.67 5.64 Intermittent lRestoration T3 51-100' 1,845 1 100% - Yes 0.042 2,249.36 143.81 53% 51% 50.49 3.11 Intermittent Enhancement T3 TOB to 50' 14,636 2 1 100%1 7,318 No - - Intermittent Enhancement T3 51-100, 776 2 100% 388 No Intermittent Enhancement T4 TOB to 50' 27,618 2 100% 13,809 No - - Intermittent Enhancement T4 51-100, 3,404 2 100% 1,702 No - - Intermittent Enhancement T4 101-200' 2,970 2 33% 490 No - - Ephemeral Restoration TS > 20 TOB but <50' 7,975 1 100% 7,975 No Ephemeral Restoration T5 TOB to 50' 1,403 1 100% 1,403 Yes 0.032 2,249.36 143.81 53% 51% 38.398 2.36 Ephemeral Restoration T5 51-100, 28 1 100% 281 Yes 0.0011 2,249.36 143.81 53% 51% 0.753 0.05 TOTAL CREDITABLE AREA 667,918 sf 427,116 2.859 ac Current assigned nutrient offset 3,407.96 209.66 TOTAL ASSIGNED TO RIPARIAN BUFFER MITIGATION 543,396 sf 6.449 ac Potential nutrient conversion from riparian buffer credit (shown in italics) 7,688.66 473.02 TOTAL ASSIGNED TO NUTRIENT OFFSET 124,522 sf 19.308 ac Total on -site nutrient offset potential 11,096.61 682.68 IGIBLE PRESERVATION AREA 1 181.132 Initial Riparian Stream Riparian Credit Reach l0 / Creditable %Full Buffer Category Type Component Buffer Width (k) Area (sf) Credit Credit Credits Ratio (z:1) BMU Intermittent Preservation Tl(a) TOB to 50' 29,749 10 100% 2,975 Intermittent Preservation T3(b) TOB to 50' 2,823 10 100% 282 Intermittent Preservation Tl(b) 51-100, 336 10 100% 34 Intermittent Preservation T2(b) TOB to 50'1 23,704 10 100% 21370 Intermittent Preservation I T2(b) 51-100' 52 10 100% 5 PRESERVATION TOTAL (LESS THAN 25%OF TOTAL) 56,664 sf 5,666 TOTAL BUFFER MITIGATION SF WITH PRESERVATION1 600,059 sf 432,782 13.78 ac EPHEMERAL BUFFER AREA (SF) Square Feet Acres T2-1 14,352 0.329 T5 9,405 0.216 TOTAL 23,757 0.54538 PERCENT EPHEMERAL BUFFER AREA (UNDER ALLOWABLE 25%) 4.0% Bank Parcel Development Package for Black Bull Buffer Mitigation and Nutrient Offset Bank Jordan Lake, Haw Arm DWR Stream Determination Letter 10/9/2018 Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) NORTH CAFE-O''-INA ROY COOPER Eltvirvnmerd-af aualily coves MI+CHAEL So REGAN 1Z__1_Y LINDA CULPEPPER interim airecw October 9, 2018 Joe Sullivan KCI Technologies, Inc. 4505 Falls of Neuse Rd, Suite 400 Raleigh, NC 27609 Subject: On -Site Determination for Applicability to the Jordan Lake Buffer Rules (15A NCAC 2B .0250) Subject Property: Black Bull Creek Restoration Mitigation Site, 4538 Friendship Rock Creek Rd, Burlington NC, Alamance County Dear Mr. Sullivan: On October 4, 2018, at your request, Sue Homewood conducted an on -site determination to review features located on the subject project for stream determinations with regards to the above noted state regulations. Samantha Dailey with the USACE was also present during the site visit. The attached sketch depicts the channels that were reviewed during the site visit. Channels T1, T2, T3 below a culvert crossing and T4 as shown on the attached sketch were determined to be at least intermittent channels and subject to the Jordan Lake Buffer Rules cited above. Channel T2-1 was determined to be ephemeral and not subject to the Jordan Lake Buffer Rules. These regulations are subject to change in the future. The owner (or future owners) should notify the Division (and other relevant agencies) of this decision in any future correspondences concerning this property. This on -site determination shall expire five (5) years from the date of this letter. North Carolina Department of Environmental Quality I Division of Water Resources 450 W. Hanes Mill Rd, Winston-Salem, NC 27107 336.776-9800 Page 2 of 2 Landowners or affected parties that dispute a determination made by the Division or Delegated Local Authority that a surface water exists and that it is subject to the buffer rule may request a determination by the Director. A request for a determination by the Director shall be referred to the Director in writing c/o 401 & Buffer Permitting Branch, 1650 Mail Service Center, Raleigh, NC 27699-1650. Individuals that dispute a determination by the Division or Delegated Local Authority that "exempts" surface water from the buffer rule may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. Applicants are hereby notified that the 60-day statutory appeal time does not start until the affected party (including downstream and adjacent landowners) is notified of this decision. The Division recommends that the applicant conduct this notification in order to be certain that third party appeals are made in a timely manner. To ask for a hearing, send a written petition, which conforms to Chapter 150E of the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This determination is final and binding unless you ask for a hearing within 60 days. This letter only addresses the applicability to the buffer rules and does not approve any activity within Waters of the United States or Waters of the State or their associated buffers. If you have any additional questions or require additional information, please contact me at 336-776-9693 or sue.homewood@ncdenr.gov. Sincerely, Sue Homewood Winston-Salem Regional Office Enclosures: USGS Topo Map Black Bull Creek Features Map Cc: Lucy H Isley Life Estate, 4538 Friendship Rock Creek Rd, Burlington NC 27215 Samantha Dailey, USACE Raleigh Regulatory Field Office (via email) Katie Merritt/Mac Haupt, DWR (via email) DWR, Winston-Salem Regional Office RMA USGS The National Map: National Boundaries Dataset, National Elevation Dataset, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; U.S. Census Bureau - TIGER/Line; HERE Proposed Easement Road Data. Data Refreshed July, 2017. FIGURE 2. USGS MAP A N 0 200 400 Source: USGS National Map BLACK BULL CREEK RESTORATION SITE Snow Camp Quad Feet ALAMANCE COUNTY, NC K *a r Proposed Easement (20.6 ac) Wetlands Surface Water Ephemeral Channel Intermittent Streams Perennial Streams L 4 y 0 200 400 FIGURE 3. POTENTIAL WOTUS N BLACK BULL CREEK RESTORATION SITE Source: Orthoimage Statewide Feet ry, 2014. ALAMANCE COUNTY, NC NCDWR Site Viability Letter 11/15/2018 Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Interim Director NORTH CAROLINA Environmental Quality November 15, 2018 Joseph Sullivan KCI Associates of North Carolina 4505 Falls of Neuse Rd Raleigh, NC 27609 (via electronic mail: joe.sullivangkci.com ) Re: Site Viability for Buffer Mitigation & Nutrient Offset — Black Bull Creek Site Located off Friendship Rock Creek Rd, 35.979064,-79.481308 Haw River Sub -Watershed Alamance County Dear Mr. Sullivan, On October 15, 2018, Katie Merritt, with the Division of Water Resources (DWR), received a request from you on behalf of KCI Associates of North Carolina (KCI) for a site visit near the above - referenced site in the Haw River Sub -watershed of Jordan Lake. The site visit was to determine the potential for riparian buffer mitigation and nutrient offset within a proposed Easement Boundary, which is more accurately shown in the attached map labeled "Figure 3" and initialed by Ms. Merritt on November 15, 2018. On October 30, 2018, Ms. Merritt performed a site assessment of the subject site. Tim Morris with KCI was also present during the site assessment. This site is also being proposed as a stream mitigation site by KCI. Ms. Merritt's evaluation of the features onsite and their associated mitigation determination for the riparian areas are provided in the table below. This evaluation was made from Top of Bank (TOB) and landward 200' from each feature for buffer mitigation pursuant to 15A NCAC 02B .0295 (effective November 1, 2015) and for nutrient offset credits pursuant to 15A NCAC 02B .0240. Feature Classification onsite 1 ubject Riparian Land uses Buffer Credit 2Nutrient Mitigation Type Determination to adjacent to Feature Offset w/in riparian areas 0-200' Buffer Viable Viable at Rule 2,249.36 Ibs acre T1(a) Stream Yes Row crop agriculture w/ a 10- 'Yes Yes fields Fields - Restoration Site per 15A See map 15' wide forested fringe only) NCAC 02B .0295 (n) Forested fringe - Preservation Site per 15A NCAC 02B .0295 n NORTH CA CJ� -I, aft CC, D_ E Q` ` North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611 919.707.9000 Black Bull Site KCI November 15, 2018 Feature Classification 'Subject Riparian Land uses Buffer 2Nutrient Mitigation Type Determination onsite to adjacent to Feature Offset w/in riparian areas Credit 0-200' Buffer Viable Viable at 2,249.36 Rule lbs acre Tl (b) Stream Yes Left Bank - Fescue field and Yes No Left Bank (no pines) - Restoration Site See map densely planted 10 year -old per 15A NCAC 02B .0295 (n) pines Left Bank (w/in pines)- no credit Right Bank - combination of partially forested and un- Right Bank (no pines) - Enhancement forested areas with lightly Site per 15A NCAC 02B .0295 (n) if dense privet throughout & 100% privet removal is implemented adjacent to densely planted 10 year -old pines Right Bank (w/in pines) - no credit Right Bank non -forested areas - Restoration Site per 15A NCAC 02B .0295 (n) T1(c) Stream Yes A combination of forested and 'Yes Yes (non- Non -forested areas - Restoration See map non -forested pasture all forested Site per 15A NCAC 02B .0295 (n) grazed by cattle areas only) Forested pasture - Enhancement Site per 15A NCAC 02B .0295 (o)(6) if fence is installed or Preservation Site per 15A NCAC 02B .0295 (o)(5) if fence isn't installed. T2(a) Stream Yes A combination of forested and 'Yes Yes (non- Non -forested areas - Restoration See map non -forested pasture all forested Site per 15A NCAC 02B .0295 (n) grazed by cattle areas only) Forested pasture - Enhancement Site A pond is located adjacent to per 15A NCAC 02B .0295 (o)(6) if the right bank fence is installed or Preservation Site per 15A NCAC 02B .0295 (o)(5) if fence isn't installed. If pond is drained, backfilled, graded, seeded and planted, the new riparian areas will be viable as a Restoration Site per 15A NCAC 02B .0295 (n) and viable for buffer mitigation and nutrient offsets. T2 (b) Stream Yes Row crop agriculture w/ a 10- 'Yes Yes fields Fields - Restoration Site per 15A See map 15' wide forested fringe. only) NCAC 02B .0295 (n) Privet is present along the banks Forested fringe - Preservation Site per 15A NCAC 02B .0295 (o)(5). Need to remove privet. Page 215 Black Bull Site KCI November 15, 2018 Feature Classification 1 ub'ect Riparian Land uses Buffer 2Nutrient Mitigation Tyne Determination adjacent to Feature Offset Viable at w/in riparian areas onsite to Buffer Credit Viable 0-200' Rule 2,249.36 lbs acre T2-1 Ephemeral No Combination of partially 'Yes Yes (non- Dense Privet areas & partially forested & non -forested forested forested areas combined - pasture actively grazed by pasture Enhancement Site per 15A NCAC cattle with dense privet along only) 02B .0295 (o)(7) if 100% privet the banks. removal is implemented Non -forested areas beyond tree line) - Restoration Site per 15A NCAC 02B .0295 (o)(7) Must meet additional requirements under.0295 (o)(7) to be viable for buffer mitigation. T3 Stream Yes A combination of forested and 'Yes Yes (non- Non -forested areas - Restoration non -forested pasture all forested Site per 15A NCAC 02B .0295 (n) grazed by cattle pasture only) Forested pasture - Enhancement Site per 15A NCAC 02B .0295 (o)(6) if fence is installed or Preservation Site per 15A NCAC 02B .0295 (o)(5) if fence isn't installed. T4 Stream Yes Forested pasture grazed by 'Yes No Forested pasture - Enhancement Site cattle per 15A NCAC 02B .0295 (o)(6) if fence is installed or Preservation Site per 15A NCAC 02B .0295 (o)(5) if fence isn't installed. T5 Ephemeral No Non -forested pasture grazed 'Yes Yes Restoration Site per 15A NCAC 02B (see map) by cattle .0295 (o)(7) Must meet additional requirements under.0295 (0)(7) to be viable for buffer mitigation. T6 Ditch No Row crop agriculture *see note Yes Restoration Site per 15A NCAC 02B .0295 (o)(8) *Buffer Mitigation - Assessment concludes the ditch meets 15A NCAC 02B .0295 (o)(8) (A, B, C, D & E). More information on the watershed is needed for complete assessment. See rule. Page 315 Black Bull Site KCI November 15, 2018 Feature Classification 'Subject Riparian Land uses Buffer 2Nutrient Mitigation Type Determination onsite adjacent to Feature Offset w/in riparian areas to Credit 0-200' Buffer Viable Viable at 2,249.36 Rule lbs acre T7 Ditch No Row crop agriculture *see note Yes Restoration Site per 15A NCAC 02B .0295 (o)(8) *Buffer Mitigation - Assessment concludes the ditch meets 15A NCAC 02B .0295 (o)(8) (A, B, C, D & E). More information on the watershed is needed for complete assessment. See rule 'Subjectivity calls for the features were determined by DWR in correspondence dated October 9, 2018 using the 1:24,000 scale quadrangle topographic map prepared by USGS and the most recent printed version of the soil survey map prepared by the NRCS . 2 NC Division of Water Resources - Methodology and Calculations for determining Nutrient Reductions associated with Riparian Buffer Establishment 3The area of preservation credit within a buffer mitigation site shall comprise of no more than 25 percent (25%) of the total area of buffer mitigation per 15A NCAC 0295 (o)(5) and 15A NCAC 0295 (o)(4). Site cannot be a Preservation Only site to comply with this rule. 4The area described as an Enhancement Site was assessed and determined to comply with all 15A NCAC 02B .0295(o)(6). Cattle exclusion fencing is required to be installed around the mitigation area to get buffer credit under this part of the rule. sThe area of the mitigation site on ephemeral channels shall comprise no more than 25 percent (25%) of the total area of buffer mitigation per 15A NCAC 02B .0295 (o)(7). Maps that are attached to this letter were prepared by KCI and were initialed by Ms. Merritt on November 15, 2018. This letter should be provided in all stream and wetland, buffer and/or nutrient offset mitigation plans for this Site. This letter does not constitute an approval of this site to generate mitigation credits. Pursuant to 15A NCAC 02B .0295, a mitigation proposal and a mitigation plan shall be submitted to DWR for written approval prior to conducting any mitigation activities in riparian areas and/or surface waters for buffer mitigation credit. Pursuant to 15A NCAC 02B .0240, a proposal regarding a proposed nutrient load -reducing measure for nutrient offset credit shall be submitted to DWR for approval prior to any mitigation activities in riparian areas and/or surface waters. All vegetative plantings, performance criteria and other mitigation requirements for riparian restoration, enhancement and preservation must follow the requirements in 15A NCAC 02B .0295 to be eligible for buffer and/or nutrient offset mitigation credits. For any areas depicted as not being viable for nutrient offset credit above, one could propose a different measure, along with supporting calculations and sufficient detail to support estimates of load reduction, for review by the DWR to determine viability for nutrient offset in accordance with 15A NCAC 02B .0240. This viability assessment will expire on November 15, 2020 or upon the submittal of an As -Built Report to the DWR, whichever comes first. This letter should be provided in all stream, wetland or buffer mitigation plans for this Site. Page 415 Black Bull Site KCI November 15, 2018 Please contact Katie Merritt at (919) 707-3637 if you have any questions regarding this correspondence. Sincerely, Karen Higgins, Supervisor 401 and Buffer Permitting Branch KAH/km Attachments: Figure 3, Topographic Map of Site cc: File Copy (Katie Merritt) 515 Conservation Easement and Plat Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) Arm Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) zv �10 W W W 0 � � W eowo `_'W?'.a CL Z 0U) g= m Lou: Tr Q O OD O era � m r C C 0 N Z h � F O O r O ' r Eli W 0Q�' ,u) Li CIOa ? SURVEYOR NOTES: / SANE CERTIFICATION OF EXEMPTTON 1. THIS PLAT DOES NOT REPRESENT A BOUNDARY SURVEY OF THE PARENT LEGEND TRACTS. THE PARENT TRACT BOUNDARIES ADJACENT TO THIS EASEMENT ARE NCR '�� i 1(WE) HEREBY CERTIFY THAT I AM (ENE ARE) THE OW?4ERM OF CHANGED BY THIS PLAT. BOUNDARY INFORMATION SHOWN HEREON WAS DERIVED 0 CALCULATED POINT THE PROPERTY SHOWN AND DESCRIBED HEREON, WHICH WAS FROM DEEDS AND MAPS OF RECORD IN ALAMANCE COUNTY AND MONUMENTATION � IRON EXISTINGIRON� CONVEYED TO ME (US) BY DEEDS SHOWN HEREON AND THAT THE IN THE FIELD. Q 5/8- REBAR SET 1// 3.25' ALUMINUM i'PIPE SUBDIVISION OF THE PROPERTY SHOWN ON THIS PLAT IS AN 2. DISTANCES SHOWN ARE HORIZONTAL GROUND VISTA 4M 1NU.9, SURVEY FEET CAP WTH STATE SEAL � � EXCEPTION TO THE SUBDIVISION ORDINANCE OF ALAMANCE COUNTY, NORTH CAROLINA UNDER SECTION 32 1. UNLESS OTHERWISE NOTED. O EXISTING MONUMENT 3. AREA COMPUTED BY COORDINATE METHOD. EA NEN CONSERVATIOII EASEMENT SLAM OF NO" CAROLINA it- t3 -14, THE BASIS OF THE MERI RAMS AND COORD'II'IATES POR THIN PLAT IS TRB POB POINT OF BEGINNING 1 �Yp OFFICER GEORGE M LEY DATE NORTH CAROLINA STATE PLANE COORDINATE SYSTEM, NORTH AMERICAN DATUM POC POINT OF COMMENCEMENT OF ALAMANCE COUNTY, CERTIFY THAT THE MAP 1"3 (NAD 83), BASED ON DIFFERENTIAL GPS OBSERVATIONS PERFORMED IN JANUARY 2019. FIB FOUND IRON BAR OR PLAT WHICH THIS CERTIFICATION IS AFFIXED MEETS ALL STATUTORY REQUIREMENTS FOR FD rmpE \ u & M/1"Il4k S. DEED REFERENCEW AS SHOWN TMITON. FlP FOUND IRON PIPE RECORDING. J N W. ISLEY DATE 6. SUBJECT PROPERTIES ICNUWI4 AS TAX NUMBER: AS SHOWNAERFOR. \ Ina 7. SUBJECT EASEMENT LIES WrrMN THE AREA DESMATED AS ZONE -X', BASED ON REVIEW OFFICER DATE s FEDERAL FLOOD INSURANCE RATE MAP 3710884000L, EFFECTIVE NOV 17, 2017. #53 D Y DATE 3. NO UNDERGROUND UTILITY LOCATING PERFORMED DURING THE COURSE OF TM3 SURVEY. ` POB CE#3 #s2 MN .1R AVES \ / /r MARK S7FWA( PA 17ERSCIV �`� GPIN 8851637778 PARCEL ID. 111418 \ / 40 \ GPIN 8851640907PARCEL < I OB 1078 PG 8 9 lzt*�kjt A 7+�iQ� ID:111419 s < k LISLEr I ,paC,a VICINITY MAP DB 3551 PG 422 • CONSERI/ATION #ss \ g 71NA(NOT TO SCALE) y 3 EASEMENT #3 ` \ f57198 S F - -___ ------------ _ _.__.__ __ ._.............. \ 3.6f ACRES \ R4NK E ISLET VATE POC #64 057 #3 FD STONE: i N: 813527.76 fS9 \ MA I. N►c SON 4! D E:1855320.42 #63 <S \ \ ro e #58 FD r52 AXLE MOM \ \ LONNIE G NICHOLSON, SR. DATE m N� 1 #50 DONALD DREW LOY \ MON � \ ti,+65 NCGS GPIN 8851735148 709&:�� ;� #61 PARCEL ID: 111421 W3 (OG091) \ " DO 1596 PG 585 \ N: 827, 624.64 \ \ LACY H. ISLEY DATE PB 66 PG 114 ' 1, 865, 757.13 M7 E. #+ CSF.• 0.99993931 9 fir � �r L N/F 3 N6k #46 \ ✓ O GRAVES DATE WN ✓ CRAWS g6 N- ✓ ✓ - ✓ \ GP/N 8851521955 r ✓ r ✓ \ / PARCEL ID. 111413 rJ DO 1078 PG 5 E4SEREA(T#2 J ✓ ✓ #50 fO4, 874 S.F. ✓ -^-� ` \ \BE7N"GRAVE��DATE n-,�%Q 11 ��t� N/f v.. 2.4E ACRES ✓ ✓CNN ISLEY GP/N 8851822698 GPIN 88 24830 #45 #51 / ✓ \ PARCEL 1D. 111430 lb �\ '� GLOBAL POSTTIOR FIG SYSTEM (Gm 'r PARCEL 8 1 C 5 DO 2322 PG 920 �- ✓ \ PB 70 PG 17 d �� COORDINATES WERE USED FOR THE BASIS FlB DB 1078 PG 5 ti �' '� OF BEARING ON THIS PLAT. THE FOLLOWING *1 OF /� / INFORMATION WAS USED TO PERFORM THE r / / GPS GNSS SURVEY: Poe �. #23 \ / / �/ CLASS OF SURVEY: CLASS A 0 L2 CONSERVATION X. ,/ POSITIONAL ACCURACY 0.03(+IOL) FYP #2 #27 � #24 EASEMENT#1D FlB1� /o- REAL-TIME NETWORK (VRSTYPE OF GPS FIELD yDURE FfTK NCGS 7 �, 21,382 S.F. DATE OF SURVEY: 1/11119 �DHlV M �i )VMARK E /SZEY '' 0.49ACRES GPIN 8851429286 CE C ?50 3P005 ��El ^ L25 � 1 GEDRG£ M /BEET 11 DATUMIEPOCH: MAD83/2011 m PUBLISHED FIXED CONTROL USED: NCBU PARCEL ID: 111399 CE#2 L2s/V #29 /f FIB GPIN 8851810995 BURLINGTON CORS DO 1620 PG 482 IP POB LUCY H ISLEY UFE PARCEL ID: 111427 GEOID N: 8557 5.2 CE C 21 GPIN 8851811697 DO 1567 PG 239 COMBINED SCALEFACTOR: 0.9999M E:1855795.29 #3O PARCEL ID. 111428 /� UNITS: U.S. SURVEY FEET DPC 856 7DO 168PC 623 / FTP 1V/f / N:812090.74 FRANK ISLEY E:1857951.21 GPIN 88518IJ813 FlP PARCEL ID. 111429 -� #31 POC DO 2180 PG 689 JIM CE#1A/8 FIB PS 55 PG 159 X S 2 c� co d /' REY MOODY 15Z£Y 4 CONSLUCY ERVATION #35 1, / �i"iaj�ry ISZEY L GPIN 8851514581 EASEMENT#1C ? �/ rn ESTATE PARCEL ID: 111412 OB 777 PG 711 409260 S.F. $33 �2 GP/N 8851811697 LINE TABLE LENGTH BEARING 20 9 6424'57 102.91 87'39'06' P 145.99 02'20'29' 169.75 84'05'23' 84.81 79.46 76'30'54' L7 114.86 10-49'05- L8 125.88 58-40'15" L9 127.16 3217.13' L10 240.55 8719'4B" L11 216.27 50'40'51" L12 69.19 S47'19'41' L13 94.84 46'04'11' L14 390.49 S5329'18' L15 189.43 7658'02' L16 34-4.48519'33'38'Vf 07 347.81 68'16'15' L18 84.53 17'09'40'W L19 288.13 N62'26'33'W L20 175.94 8625'32"W L21 145.98 NO2'16'06' L22 147.77 N75'11'48' L23 53.63 S21'52'35" L24 107.09 S05'11'47" L25 172.00 8727'41 "W L26 79.38 08-56.27" 35.14 N21-48.10' 172.00 S8727'41' 133.80 $0232'19-W 401.73 S67'40'39" RL3 434.09 56550'26' 184.49 54920'09' 123.45 S3217'13"W 422.80 62'37'24"W Las 1 499.56 67'47'22'W L36 500.86 S10'06'40'W L37 591.61 S06'51'57' L38 169.89 S511 '19' L39 38.86 S66'30.13'W L40 138.57 S78'38'30"W L41 128.84 54-42'07"W L42 601.43 N09'05'43"W L43 364.79 N10-06-40" 515.64 N0232'19' 271.30 N21'48'10'W 292.17 N0721'26" 136.06 N22'54'54"W P44 148.28 N6422.16" 146.30 S2316'19" 209.44 S01*16'30' 97.91 S2514'44'W L52 281.27 S21'52'35' 368.48 N65'11'27' 112.54 S30'36'24'E 146.28 S5410'14"W NL5a 252.82 S30'31'48" 219.49 S59'59'43" 130.27 S34'36'56'W 102.46 N64'04.53"W L60 230.55 S10'01'23"W 14-4.07 S6422'16"W 182.51 N0210'01' 96.44 N1520'41 KL6 126.99 N06'34'1B'W 158.49 N25'51'06"W 261.35 N5124'41"W 59.97 2'32'19'W TII wuff'I" Ri WING _pm 301 811670.32 2357657.40 3M __. 811531.41 18S7843.10 3M B11577.19 ISS/945-92 304 81143L33 - 1857939.96 305 811448.81 18S777L11 - 306 811366.0 n857752 72 317 811384.SS 1357675.45 308 811497.37 1957697.01 309 811562.82 1857589.48 310 811574.74 5858005.69 311 9U 4.93 1859246.04 312 SU70L97 1858413.35 313 - 811655.08 185846422 314 811SM.27 1858395.92 315 811356,94 I858709.77 316 311399.66 195SM31 r 317 8110MOS 78587I899 318 81L203 84 1358ASs.89 319 911284.61 19S8430.9S 320 -- 811417.91 18%17S.S1 321 811423.88 18s7999.91 327t 912470.46 1SMS20.74 323 912503.22 1E56663.60 324 8124S8.45 1856683.S9 _ 324 31235L86 IBV69129 326 312359.42 195652146 327 812437.93 IMS33.79 328 81229931 1856518.80 Y 329 81229LBS 1956690.63 330 812158.22 1356694.70 _.. 331 812005.64 _._ 18570%33 _ _ 332 811827.97 MS745Z40 333 911707.76 1ss759Z34 334 9116M.40 1857S26.40 335 811797.81 1857150 96 336 11119MAS 1856688.46 337 811493.58 1356600 53 336 310906.21 185667L26_ 339 810799.72 1856803.64 349 810784.23 1856T68.00 341 $10756.94 1856632.14 - 342 8IOB3L39 ISS6526.99 343 K1425.25 185ML97 344 81178438 185649S.96 - 34 81272236 18%a9 97 f 346 20MZ12 1856457 391 347 813137.44 1856404.41 30 8132DLSS 1856533.10 34! 813067.18 1856M90 358 2128S7.79 =56600.56 - 351 812769.23 19%5%90 3S2 813899.25 UM12405 SS3 314053.86 1896453 53 VA 813957.W _.._. U56515 83 ass K387L37 ffi5639723 M 856 313653.60 U%525.66 9.40ACRES PCs PARCEL W. 111428 Cf #1 A 1 �!� #13 DO 2327 PG 856 as? 313S43.84 I S%-nS.74 # DO 166 PG 623 Y $58 813436.63 18%64L73 ., �; 359 8134BL42 IIMSO 58 `,``�4a�r C A R►►r,�/�r' .� #34 #9 #2 �� UO #11 #14 GRAPH)C SCALE 3W 81325439 28%SD946 1, JAMES M. GELLENTHM, CERTIFYTHATTHM MAP WAS DRAWN �. �N 0< / �'. + CE#19 2" 0 125 250 y06 361 21319107 1856379 56 UNDER MY SUPERVISION FROM AN ACTUAL SURVEY MADE UNDER OQ'r F I O~' =� Q / 46 08 p !/ MY SUPERVISION (DEED REFERENCE AS SHOWN, THAT THE 2 ; QO 9 / P 86Z 813374.45 1856386 46 jf'S 363 813467.45 185641L9$ BOUNDARIES NOT SURVEYED ARE CLEARLY INDICATED AS DRAWN ; {Q �': wy J 3fI1 813593.60 1856397.45 FROM INFORMATION FOUND IN BOOK AND PAGE AS SHOWN; THAT SEAL ' * = 143' / L4 #4 #18 #21 L2Q 20 5 L1 1 INCH - 2W FEET 365 613T36 24 1856328 34 THE RATIO OF PRECISION AS CALCULATED IS GREATER THAN _ ;r _ �/ # n 1:10,000; THAT THIS MAP DOES REPRESENT AN OFFICIAL BOUNDARY q 0: `C' r L6 #6 L1 SURVEY AND HAS BEEN PREPARED IN ACCORDANCE WITH G.S. 47-30 ':y .A r r G/�� COJV'$'El�l/ATION 9 AS AMENDED. WITNESS MY ORIGINAL SIGNATURE, REGISTRATION '•.O �I FINAL PLAT E ,r h NUMBER AND SEAL THIS 12TH DAY Of NOVEMBER, 2019. ••`-.• 3 U R V •f�� .` OV/ EASEMENT #1A. f� CONSERVATION EASEMENT b `� �Q��/�, 56370 S.F. r � J rrrnrC�rEot,,``�: v QJ 1.29ACRES #18 FOR i �10 0 Fri CONSERVATION �1j ATLANTIC COAST CONSERVANCY PROJECT NAME: BLACK BULL STREAM AND WETLAND MITIGATION BANK ORTH CAROLINA REGISTRATION NUMBER L-3860 N ,EASEMENT#1B _ _ NC DEQ DWR # 20180975 JAMES M. GELLENTHIN FIP`�.,�`N'C'AR04r''`,, / ��/ 4190ACREs 7 DEPARTMENT OF THE ARMY ACTION ID # -SAW-2018-00967 fs 10��,� COBLE CREEK TOWNSHIP, ALAMANCE COUNTY �o ti9 s FP NORTH CAROLINA I, JAMES M. GELLER I MIR, /RQFES510NAL LAUD SURVEYOR, NO. L-3860STATE OF INOIRT; #� CAROLINA CERTIFY TO THE FOLLOWING AS REQUIRED IN G.S. 47-30 (F)•(11)-(D): * ' SEAL : " / ANCE { COUN DATE: SCALE: SHEET: `r L-386b 2 = 2 / MARCH 2 2019 1' 250' 1 OF 1 THAT THE SURVEY IS OF ANOTHER CATEGORY, SUCH AS THE = ? q O ; #4 #39 LRECOMBINATION OF EXISTING PARCELS, A COURT ORDERED SURVEY, OR ':y / �OF ALAM CE COUNTY41= AT THE MAP OTHER EXCEPTION TO THE DEFINITION OF SUBDIVISION. ••� F,� A / �3 KCI ,ASSC ASSOC OF N.C. �►0 #40 OR FLAT WHICH THIS CERTIFICATION IS AFFIXED MEETS ALL STAMORY REQUIREMENTS FOR RECORDING. ENGINEERS, SURVEYORS AND PLANNERS EU HOLT V'OCUIVIE£R IRAVIS & R08/N GRAVES r►rnn:r f7RE DEPAR7MENT GP/N 8850798700 a. Ar N/E GPIN 8851609617 PARCEL ID.' 111264 KCI 4505 FALLS OF NEUSE ROAD, FLOOR 4 N CAROLINA REGISTRATION NUMBER L-3860 - �. FIP TRANS AND ROBIN GRAVES' \ PARCEL ID: 111419 DR 1000 PG 626 REVIEvy4 FICE DATE ASSOCIATES OF RALEIGH, NC 27609 +� JAMES M. GELLENTHIN GPIN 8850694037 / DR 710 PG 373 (/ NORTH CAROLINA PHONE (919) 783-9214 = FAX (919) 783-9266 PARCEL ID: 111247 / DO 3578 PG 13 C-0764 USFWS Response Letters 5/15/2018 and 10/1/18 Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) United States Department of the Interior FISH AND WILDLIFE SERVICE Raleigh ES Field Office Post Office Box 33726 Raleigh, North Carolina 27636-3726 FRECEIVED 1.5 2018 May 11, 2018 REGULATORY LD OFFICE Samantha Dailey U.S. Army Corps of Engineers, Wilmington District Regulatory Division 3331 Heritage Trade Drive, Suite 105 Wake Forest, NC 27587 . Re: Cape Fear 02 UMBI (Black Bull Creek Mitigation Site)/ SAW-2018-00697/ Alamance Co. Dear Ms. Dailey: The U.S. Fish and.Wildlife.Service (Service) has reviewed the information concerning the above referenced project. The project, based on the description in your letter: to our office; and biher information, is expected to have minimal adverse impacts to fish and wildlife resources. In accordance with the Endangered Species Act of 1973, as amended, (ESA) and based on the information provided, and other available information, it appears the action is not likely to adversely affect federally listed species or their critical habitat as defined by the ESA. We believe that the requirements of section 7 (a)(2) of the ESA have been satisfied for this project. Please remember that obligations under the ESA must be reconsidered if. (1) new information identifies impacts. of this action that may affect listed species or critical habitat in a manner not previously considered; (2) this action is modified in a manner that was not considered in this review; or, (3) a new species is listed or critical habitat determined that may be affected by the ider_tified action_. For your convenience a list of all federally protected endangered and threatened species in North Carolina is now available on our website at http://www.fws.gov/raleigh. Our web page contains a complete and frequently updated list of all endangered and threatened species protected by the provisions of the Endangered Species Act of 1973, as amended (16 U.S.C. 1531 et seq.)(Act), and a list of federal species of concern' that are known to occur in each county in North Carolina. Section 7 of the Act requires that all federal agencies (or their designated no 1 The term "federal species of concern" refers to those species which the Service believes might he in need of concentrated conservation actions. Federal species of concern receive no legal protection and their degignati& does not necessarily imply that the species will eventually be proposed for listing as a federally endangered or threatened species. However, we recommend that all practicable measures be taken to avoid or minimize adverse impacts to federal species of concern. representative), in consultation with the Service, insure that any action federally authorized, funded, or carried out by such agencies is not likely to jeopardize the continued existence of any federally -listed endangered or threatened species. A biological assessment or evaluation may be prepared to fulfill -that requirement and in determining whether additional consultation with the Service is necessary. In addition to the federally -protected species list, information on the species' life histories and habitats and information on completing a biological assessment or evaluation and can be found on our web page at http://www.fws.gov/raleigh. Please check the web site often for updated information or changes. If your project contains. suitable habitat for any of the federally -listed species known to be present within the county where your project occurs, the proposed action has the potential to adversely affect those species. As such, we recommend that surveys be conducted to determine the species' presence or absence within the project area. The use of North Carolina Natural Heritage program data should not be substituted for actual field surveys. If you determine that the proposed action may affect (i.e., likely to adversely affect or not likely to adversely affect) a federally -protected species, you should notify this office with your determination, the results of your surveys, survey methodologies, and an analysis of the effects of the action on listed species, including consideration of direct, indirect, and cumulative effects, before conducting any activities that might affect the species. If you determine that the proposed action will have no effect (i.e., no beneficial or adverse, direct or indirect effect) on federally listed species, then you are not required to contact our office for concurrence (unless an EnviromnentaI Impact Statement is prepared). However, you should maintain a complete record of the assessment, including steps leading to your determination of effect, the qualified personnel conducting the assessment, habitat conditions, site photographs, and any other related articles. The Service appreciates the opportunity to review and provide comments on the proposed action. Should you have any questions regarding the project, please contact Kathy Matthews at (919) 856- 4520, extension 21. Sincerely, ke Benjiamin Field Supervisor cc: NMFS, Beaufort, NC " EPA, Atlanta, GA WRC, Raleigh United States Department of the Interior FISH AND WILDLIFE SERVICE Raleigh FS Field Office Post Office Box 33726 Raleigh, North Carolhia 27636-3726 September 28, 2018 Samantha Dailey U.S. Army Corps of Engineers, Wilmington District HR�oaL��o�r�`��o° Raleigh Regulatory Field Office 3331 Heritage Trade Drive, Suite 105 Wake Forest, NC 27587 Re: I<Ci Cape Fear 02 Black Bull Creek Mitigation Site / SAW-2018-00697/ Alamance County Dear Mrs. Dailey: The U.S. Fish and Wildlife Service (Service) has reviewed the project advertised in the above referenced Public Notice. The project, as advertised in the Public Notice, is expected to have minimal adverse impacts to fish and wildlife resources. Therefore, we have no objection to the activity as described in the permit application, In accordance with the Endangered Species Act of 1973, as amended, (ESA) and based on the information provided, and other available information, it appears the action is not likely to adversely affect federally listed species or their critical habitat as defined by the ESA. We believe that the requirements of section 7 (a)(2) of the ESA have been satisfied for this project. Please remember that obligations under the ESA must be reconsidered if: (1) new information identifies impacts of this action that may affect listed species or critical habitat in a manner not previously considered; (2) this action is modified in a manner that was not considered in this review; or, (3) a new species is listed or critical habitat determined that may be affected by the identified action. For your convenience a list of all federally protected endangered and threatened species in North Carolina is now available on our website at <http://W'\Aiw.fws.gov/raleigh.;.. Our web -page cony Gins a complete and updated list of federally protected species, and a list of federal species of concern known to occur in each county in North Carolina. The Service appreciates the opportunity to review and provide comments on the proposed action. Should you have any questions regarding the project, please contact Kathy Matthews at (919) 856-4520, extension 27. i cerely,� �(! 0P�-�~� to Benjamin, Field Supervisor cc. NMFS, Beaufort, NC EPA, Atlanta, GA WRC, Raleigh NC SHPO Response Letter 10/1/2018 Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) North Carolina Department of Natural and Cultural Resources State Historic Preservation Office Ramona M. Bartos, Administrator Governor Roy Cooper Secretary Susi H. Hamilton October 1, 2018 Samantha Dailey Raleigh Regulatory Field Office 3331 Heritage Trade Drive, Suite 105 Wake Forest, NC 27587 Office of Archives and History Deputy Secretary Kevin Cherry Re: Black Bull Creek Mitigation Site, SAW 2018-00697, Alamance County, ER 18-2264 Dear Ms. Dailey: We have received a public notice. concerning the above project. We have conducted a review of the project and are aware of no historic resources which would be affected by the project. Therefore, we have no comment on the project as proposed. The above comments are made pursuant to Section 106 of the National Historic Preservation Act and the Advisory Council on Historic Preservation's Regulations for Compliance with Section 106 codified at 36 CFR Part 800. Thank you for your cooperation and consideration. If you have questions concerning the above comment, contact Renee Gledhill -Earley, environmental review coordinator, at 919-807-6579 or environmental.reviewnncdcr.gov. In all future communication concerning this project, please cite the above referenced tracking number. Sincerely, Ramona M. Bartos Location: 109 East Jones Street, Raleigh NC 27601 Mailing Address: 4617 Mail Service Center, Raleigh NC 27699-4617 Telephone/Fax: (919) 807-6570/807-6599 NC Natural Heritage Program Response Letter 10/24/2018 Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) Arm Ill I I II I I IIII D' 1 1111ir►111►1 I D� 51D511 ►111111 Intl'' 11111111111111►:11:11111111►; 111�1111 011111111►;; ►N'1111►; 111I�111111 111=rAl �1 �1 �1 ►� 1�1 �1 1�1 ��� �1 �1 Ijlj,�►1 �1 1� �1 11'1 j�jj�,�l �� 1�11�1 �1 �1 ►� 1�1 �1 1:1 1;1 111 11►:1►:1 11111 1111� /11 11 I;tll'.1►: ►�1 1►;�1►.11M ►1111 111111 11 ►I IIIti1 11�1.1111111►;1�11�1�11111 11 111111111 111111111 11 ►I ltl 11 11 111 ►1111�11111►;11►:1 11111 11 1111 11 ►1111t�1 11►1 1111 11111111111111 11111111Plli11'11111111►PP411111I111;1111►; 11111111111/1111:rA110PiIlF111111011P1I IIII ill111D111111111110 111t11111111111tti111111111 1 1111111111111111111I 111 M OR MEN mum OMMMMUMMMU MEMO M®E MEN M MMM®MM EEME®E MIT M OME EMT M MMO®M®M M WHERE M®®M MEMO HER HER M M® M MEN MR ® M M® ME= ® ® HER ME MET M M® MM®M HE ® M ME M MEEM 1'.11�;11',1 1111 11 1:1 1:11:11:111:11:11:11;111:1;t1111:11;1;1111111�111 11 11111111 111111� lit II It11111►11 11111111111►; 71111 11 111 12 111111111111Q1 11 I11111 1 1111111111111',11 1111111►;11 11111011 1111111111',11 1I ",1►;�I I ►;11111►;111111'10111111111 lii. � lil a li 1 1 li 1 1 li 1 li 1� i li � 1�1� � i 1 li Ili i i 1 li 1 1�1� � ili ili li ,I� 1 o�r..♦1�' 1� 11 ,�1r1@ ♦i�i� rr lr ♦� FYI ♦ El,2..11.1��r�r:1r ♦i2 ����..�ir..,��..2I , ..1♦�j' Irr ��r E"r fir" 1 �„11111111�11111 � 1,�,111111,i.;11I111 111„�111�I1111�111,„�I,1 11111�111111111111�11111,1�.,111111111�1111�1111� 1:1 II I;�1111:11l111 I; mu, lErill Fill .IAdNvAF,al..dF1Ed��.dOil .AdEd�V111l, M.�: 1,,ilil.l,.♦�,�i..11,�.i'5 6, ii,�;ylp'1 l I F1,iV'y,l��.,ARV15Ill Ii. 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Photo 8: Immediate riparian area near right bank of T2(b). 1/22/2019 1/22/2019 !n kk 4 �9 • k a+ '� - _ '� ,, Jam} � .k Ip r-_ 1 1 Photo 9: Looking upstream on T2-1 as it nears T2(a). Photo 10: Looking at T5 as it enters into T2(a). 1/22/2019 1/22/2019 Photo 11: Looking downstream at left bank of T3 in pasture. Photo 12: Left bank buffer of T4 as it nears the confluence 1/22/2019 with T1(c). 1/22/2019 Historic Aerial Photographs Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 1993 2000 41 2010 2014 Project Easement W A G� eographic Info ma io a Geogra • hic Info ma ion ,tAnalysis, NC 911 Boa ' Analysis, NC 911 Boa HISTORIC AERIALS, 1993-2014 0 450 900 BLACK BULL BUFFER MITIGATION AND NUTRIENT OFFSET BANK age Source: USES Feet Earth Explorer. ALAMANCE COUNTY, NC Construction Plan Sheets Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) Buffer Mitigation and Nutrient Offset Plan for the Black Bull Restoration Site - Jordan Lake, Haw Arm (Section 12.7 of the Black Bull Stream and Wetland Mitigation Plan) 00 �o 0 0 U �O m z PROJECT A LOCATION s 1P C49 y� �g O `o J �QP VICINITY MAP N NOT TO SCALE BLACK BULL STREAM AND WETLAND MITIGA TION BAND ALAMANCE COUNTY,NORTH CAROLINA Project Asset Table Restoration Creditable Approach Project Component Existing Footage/ Stationing Footage or Footage or Restoration Level Priority Mitigation Mitigation Notes/Comments -or- Reach ID Acreage Acreage Acreage Level Ratio (X:1( Credits T1 Reachl 1,425 10+67-27+46 1,679 1,679 Restoration 1 1:1 1,679 T1 Reach 467 27+46-31+38 391 331 Restoration 1 1:1 331 T1 Reach 524 31+38-36+42 505 505 Enhancement 11 N/A 2.5:1 202 T1 Reach 1108 36+42-47+51 1,108 1,048 Enna ncementl N/A 1.5:1 699 T2 Rea ch1 299 200+00-203+17 317 317 Enna ncementl N/A 1.5:1 211 T2 Reach 2 422 203+17-207+53 436 436 Restoration 1 1:1 436 T2 Reach 3 558 207+53-213+28 575 515 Restoration 1 1:1 515 T2 Reach 1158 213+28-227+42 1,414 1 1,323 Restoration 1 1:1 1,323 T3 Reach 55 300+00-300+55 55 55 Enha ncementl N/A 1.5:1 37 T3 Reach 222 300+55-302+44 189 189 Restoration 1 1:1 189 T4 299 400+00 - 402+84 284 284 Restoration 1 1:1 284 Riparian Wetland Restoration (Re- N/A N/A 2.621 2,621 Restoration N/A 11 2.621 establishment) (Re-establishment) Riparian Wetland Restoration 0.380 N/A 0.356 0.356 Restoration N/A 1.5:1 0.142 Rehabilitation (Rehabilitation) *Crossings have been removed from creditable linear footage for all project streams. GRAPHIC SCALES -200' 0 240' 480' TITLE SHEET -40' 0 40' 80' PLAN SHEETS DIRECTIONS TO SITE From Raleigh, take I-40 West to Exit 145, NC-49 South. Follow for approx. 13 miles and then take a right onto Friendship Patterson Mill Road. Take a left onto Friendship Rock Creek Road. The project is approx 1 mile down the street. NC GRID NAD '83 — — — — — — — — — — — — — — — — -- — — — — — — — -------- BEGIN TRIBUTARY 3 BEGIN TRIBUTARY 4 I I I I I I SHEETS 6& 27 I I I SHEETS 7 & . 26�---------------------- — I SHEETS 8 & 25 I ___--------— — — — — — — - ------------- i sNEFrs OI STATE KCI PROJECT NUMBER SHEET NO. TOTAL SHEETS �o�0 161)Ofi168 161706168 � �� INDEX OF SHEETS 1 TITLE SHEET 2 GENERAL NOTES &PROJECT LEGEND�EK'l 3-4 DETAILS 5 TYPICAL CROSS -SECTIONS 5A CULVERT DETAILS 6-10 SITE PLAN 11-13 PROFILES 14-6 PLANTING PLAN 17-19 BOUNDARY MARKING PLAN 20-29 EROSION CONTROL PLAN LIMITS OF DISTURBANCE = 24.95 ACRES Prepored In the 0/fJce o/: �� ,iSSOCWTE6 OF NC LNcIII Ell •PLANNLRs•ECOLOGISTS 4505 FALLS OF NEUSE ROAD suiTE 400 RALEIGH, NC 27609 Prepore0 by: GARY M. MRYNCZA, PE PROJECT ENGINEER ALEX FRENCH PROJECT DESIGNER TARY 1 PROJECT ENGINEER ,���IITI1,1,1 ��OP�H CAgQ�� SEAL 82733 /llllllylit��, P.E. GENERAL NOTES: BEARINGS AND DISTANCES: ALL BEARINGS ARE NAD 1983 GRID BEARINGS. ALL DISTANCES AND COORDINATES SHOWN ARE HORIZONTAL (GROUND) VALUES. UTILITY/SUBSURFACE PLANS: NO SUBSURFACE PLANS ARE AVAILABLE ON THIS PROJECT. EXISTING UNDERGROUND UTILITIES HAVE NOT BEEN VERIFIED. THE CONTRACTOR IS RESPONSIBLE FOR CONTACTING A UTILITY LOCATOR AND ESTABLISHING THE EXACT LOCATION OF ANY AND ALL EXISTING UTILITIES IN THE PROJECT REACH. PROJECT LEGEND: CONTROL POINTS DESC. NORTHING EASTING ELEV. KCI#1 811266.7640 1858759.7830 620.8080 KCI#2 811689.8770 1858590.7050 626.6070 KCI#3 811559.2220 1857533.6570 607.5830 KCI#4 811794.3400 1857069.4750 599.2720 KCI#5 810778.1510 1856603.4560 605.9580 KCI#6 811186.2280 1856460.4620 600.6360 KCI#7 811794.8280 1856484.5490 596.1390 KCI#8 812329.4420 1856542.9080 588.2260 KCI#9 813021.6750 1856779.8900 593.0350 KCI#10 813364.2530 1856555.4720 581.8040 Aj SEAL Q ; 32733 Z . -..PINE W g 11,1��114t 1, - O O O Proposed Thalweg w/Approximate Bankfull Limits N M Minor Contour Line Major Contour Line Proposed Riffle Enhancement 0 Overhead Utility Line —oHw z Proposed Riffle Grade Control o Q Q I- z Proposed Cascade Structure o W _J o Y zQ Proposed Step Pool __ ___________________________ = Q CO 2i z o Proposed Live Lift UJ z Proposed Bench Grading U) (D o J � w J U z Existing Channel to be Filled co Q Y J U Q Proposed Channel Block _ __ _________________ m GENERAL NOTES & PROJECT LEGEND USE 70OG COIR MATTING BACKED WITH WESTERN EXCEL CC4 EROSION CONTROL BLANKET. BACKFILL WITH SUITABLE GROWING MATERIAL. z IN LIVE WHIPS ON TOP OF LAYER OF USE 700 GRAM COIR MATTING a SUITABLE SOIL (0.1' - 0.2') WITH APPROX. a m SEE ROCK BASE SECTION ON ANY GRADED BENCHES O w 1 FOOT OF PLANT MATERIAL EXPOSED. FOR MATERIALS OR TERRACE SLOPES r O MINIMUM LENGTH OF CUTTINGS SHALL BE INSTALL SOIL FOR 3' MINIMUM 4'. DISTANCE BETWEEN CUTTINGS SHALL BE 4", WHIPS ON TOP OF BENCH FILTER FABRIC III— III— III III BA EFOLOW E BRUSH FILL `+ 1 1 4„ EXPOSED WOOD TOE Z O (�O O..,:. (o�O O / = — — — — — QSEFLOW (n O QO�Ooo O nOOOo O% ° co o OooDO c�Ooo � ooDOo 0 _ 5' MINIMUM _ PER DESIGNER'S DIRECTION, CROSS LIMBS S MINIMUM _ 10% NATIVE SOIL , INTERSPERSE WITH WOODY 10% CLASS A STONE DEBRIS THAT EXTENDS INTO 20% CLASS B STONE POOL TO ENHANCE HABITAT. SECTION (ROCK BASE) SECTION (WOOD BASE) 60% CLASS 1 STONE Y 0 Y LIFTS AT STATIONS 30+53, 35+65, LIFTS AT STATIONS 13+43, 17+56, Z O Z 45+85, 46+75 21+89, 26+17, 201+83, 208+91, 211+39, a m m 216+90,220+77,225+98 O O m O SEE ROCK NOTES: MIXTURES BELOW USE 1.5'x1"x2" WOODEN STAKES ON 2' CENTERS. STAKES SHALL HAVE A'ROOFING' NAIL AT TOP SEE CROSS-SECTION TO KEEP FABRIC FROM SLIPPING OFF. 6" MINIMUM SHEET FOR EXACT (SEE STON DIMENSIONS INSTALLATION NOTES) SECTION NOTE: PER DESIGNER'S DIRECTION, INTERSPERSE WITH WOODY LIVE LIFT DEBRIS TO RIFFLE ENHANCEMENT SCALE: NTS ENHANCE HABITAT. SCALE: NTS LAY FILTER FABRIC OVER UPSTREAM TOP EDGE OF SILL ROCK(S); BEHIND FILTER FABRIC, BACKFILL CLASS A SEE PROFILE SHEETS FOR AND NATURAL STREAM MATERIALS. STATIONS AND ELEVATIONS 0 PROPOSED i PROFILE w FLOW --i z z III° BASEFLOW SZ m z m 1 a m INSTALL CENTER BOULDER 0 a o ILL O a LLI J _ SLIGHTLY LOWER THAN SIDE BOULDERS TO FORCE FLOW O w O 0 O P tL LL TO CENTER OF CHANNEL III —III III —III ��=III III —III— ��� iucTni i cu i AT a AK1n1 F _ MIN. 1 5FT FILTER FABRIC 18" NOM. THICKNESS MIX OF: —FILTER FABRIC 20% CLASS A STONE (KEY IN UNDER 80%CLASS B STONE STREAM BED) PROFILE VIEW NOTES: FOR DOUBLE STEP POOLS, CONTINUE ROCK MIXTURE FROM FIRST SILL ALL THE WAY TO THE SECOND SILL. DO NOT STOP AT THE 6FT MINIMUM AS SHOWN IN THE SINGLE STEP POOL PLAN VIEW. BOULDERS SHOULD BE NATIVE STONES OR SHOT ROCK, ANGULAR AND OBLONG, WITH AN AXIS APPROXIMATELY 3' L x T W x 1.5' D. BOULDER SILLS TO EXTEND F MINIMUM INTO STREAM BANKS FOR STEP POOL STRUCTURES. STONE INSTALLATION: START BY INSTALLING STONE MIXTURE. THEN ADD SURGE STONE TO FILL IN VOIDS. FINISH BY WASHING IN NATURAL STREAM MATERIAL TO OBTAIN FINAL GRADE. IF APPROVED BY DESIGNER, BOULDER SILLS CAN BE REPLACED WITH LIVE HARDWOOD LOGS FOUND ON SITE. LOGS MUST BE A MINIMUM OF 10" DIAMETER AND STACKED IN A TRIANGLE FORMATION. NAIL (WITH PLASTIC WASHER) FILTER FABRIC TO THE TOP LOG AND CONTINUE DOWN AND UNDER STRUCTURE AS SHOWN ON STEP POOL DETAIL. LOG SILL SCALE: NTS MIN. 18" NOM. THICKNESS MIX OF: 20% CLASS A STONE 80 % CLASS B STONE STONETOE: START ROCK 2FT BELOWWATERS EDGE AND EXTEND TO 0.5FT / ABOVE WATERS EDGE i co .0 Q "/ PLAN VIEW 0,fl40001#,,+* SEAL p ; 32T33 *r ♦ '�/ P ice'- �• ROCK MIXTURES REACH CLASS A CLASS B NATIVE SOIL TI-xsA 50% 40% 10% TI-xsB 50% 40% 10% T2-xsA 80 % 20% T2-xsB 60% 30% 10% T2-xsC 50% 40% 10% T2-xsD 50% 40% 10% T3 50% 40% 10% T4 50 % 40% 10% STONE INSTALLATION: START BY INSTALLING STONE MIXTURE. FINISH BY WASHING IN NATURAL STREAM BED MATERIAL TO FILL IN VODS AND OBTAIN FINAL GRADE. Y 0 Y am o m O m O SEE CROSS-SECTION SHEET FOR EXACT DIMENSIONS ` WRAP AND STAKE COIR MATTING UNDER 1' MIN. CONSTRUCTED BANK SEE NOTE BELOW ._� 2' MIN. SEE ROCK MIXTURES BELOW NOTE: SECTION PER DESIGNER'S DIRECTION, INTERSPERSE WITH WOODY DEBRIS TO ENHANCE HABITAT. zu w (7 LL SEE PROFILE SHEETS FOR LL m STATIONS AND ELEVATIONS O _ FOR BEGIN AND END OF w RIFFLE FLOW —► TAPER STONE INTO �BASEFLOW _ _ _ _ _ _ _ _ EXISTING STREAM BED o°e� O OOo o POOL -I 1=1IIIIII-IIII I II I II IIiiiiiiiiiiii IIIIIII-I- 1I I -I I I -I 11=1 11=1 11=1 11=1 11=1 11=1 I I-III-III-ll=LT��I I=l=ll1=ll1=111=111= =1 I I=1 I I=1 I I=1 I I=1 I I=1 I I=1 I I=1 I I=1 I I=111=III=III=1 I I=1 I I=1 I I=1 I I=1 I I=1 I I=1 I I PROFILE STONE INSTALLATION: START BY INSTALLING STONE MIXTURE. FINISH BY WASHING IN NATURAL STREAM BED MATERIAL TO FILL IN VOIDS AND OBTAIN FINAL GRADE. RIFFLE GRADE CONTROL SCALE:NTS ROCK MIXTURES REACH CLASS A CLASS 6 NATIVE SOIL TI-xsA 50% 40% 10% TI-xsB 50% 40% 10% T2-xsA T2-xsB 60% 30% 10% T2-xsC 50% 40% 10% T2-xsD 50% 40% 10% T3 50% 40% 10% T4 0 z Q Q I>- z O 0 Y 0 Z Q = Q m � 2i Z O Q w Q D (n UI o J ~ W J U Q m 2i Y Q U Q Q J m DETAILS NOTES: -MATTING SHALL BE INSTALLED PRIOR TO THE INTRODUCTION OF WATER TO A STREAM SECTION. -MATTING SHALL BE INSTALLED ALONG BOTH SIDES OF NEW STREAM LENGTH. -MATTING SHALL EXTEND FROM TOE OF SLOPE TO THE TOP OF BANK. COIR MATTING �l1" x 2" NOTCHED GRADE STAKE ANCHORING COIR MATTING SCALE: NITS Wbkf INSTALL TO ONLY HALF TYPICAL RIFFLE BANKFULL ON INNER BENDS OF POOLS -------------- Wbkf ----- - BANKFULL GROUND SURFACE NOTE: COIR MATTING SHALL BE TYPICAL POOL mil` WATER SURFACE INSTALLED ALONG ENTIRE COIR MATTING BANK HEIGHT FOR STEP POOL STRUCTURES EXAMPLE COIR MATTING PLACEMENT SCALE:NTS STABILIZED ROCK OUTLET (SEE DETAIL THIS SHEET) DETENTION AREA FLOW DEPTH APVP�R�O�X.. /0.5' V V M1\\ SECTION A -A' (PROFILE VIEW) NOTES: EXACT DEMENSIONS OF BMP TO BE COORDINATED WITH DESIGN REPRESENTATIVE AT TIME OF INSTALLATION. ONCE TREATMENT AREA IS GRADED, LINE PONDED AREA WITH A 2" LAYER OF MULCH AND TOPPED WITH 2" OF TOPSOIL. WATER QUALITY TREATMENT AREA SCALE:NTS FILTER FABRIC 27 3' �0 -0 6" NOM. THICKNESS MIX OF: 10 % CABC STONE 30% CLASS A STONE STONE INSTALLATION: 60% CLASS B STONE (WASH IN NATURAL STONE AND START BY INSTALLING STONE MIXTURE. SOIL MATERIAL TO FILL IN VOIDS) FINISH BY WASHING IN NATURAL STREAM BED MATERIAL TO FILL IN VOIDS AND OBTAIN FINAL GRADE. STABILIZED ROCK OUTLET SCALE:NTS UNCOMPACTED BACKFILL 1 MIN. COMPACTED FINISH GRADE 5 BACKFILL o 5'� FLOW COMPACTED ° CHANNEL BACKFILL MIN. 1.0' THICK �S, 2� INVERT SEDIMENT CONTOL STONE CLASS STONE SEE PROFILE SHEETS FOR STATIONS AND ELEVATIONS FOR BEGIN AND END OF I RIFFLE DESIGNED IBEGN RIFFLE ELEVATON (SEE PROFILE SHEETS) TAPER RIFFLE MATERIAL INTO FINAL GRADE COMING OUT OF POOL DESIGNED POOL ELEVATION NOTES: WRAP AND STAKE COIR MATTING UNDER CONSTRUCTED BANK THROUGHOUT ENTIRE LENGTH OF RIFFLE SECTIONS. START BY INSTALLING STONE MIXTURE, FINISH BY WASHING IN NATURAL STREAM BED MATERIAL TO FILL IN VOIDS AND OBTAIN FINAL GRADE. SEE CROSS-SECTION SHEET FOR EXACT DIMENSIONS. CHANNELBLOCK SCALE:NTS DESIGNED END RIFFLE ELEVATION (SEE PROFILE SHEETS) LOG DROP BOULDER OR LOG SILL - - - - - - - - - - - - - - - - - - - - - - - - �O h FLOW--� NOTE: PER DESIGNER'S DIRECTION, INTERSPERSE WITH WOODY SECTION B-B' (LONGITUDINAL VIEW) DEBRIS TO ENHANCE HABITAT. 0 0 a m G m STABILIZE BANKS 0 O 0 O WITH 700 GRAM COIR MATTING SECTION A -A' (CROSS-SECTION VIEW) r A OR LOGS • o • o -o • o a - o -o a • o -o • o • o . -o o .o ° •o ° .o o ° .o ° o ° .o o 0 B w a oo •o °o oo o o •o a •o °oo• o o •o° o .o °oo• .o o-o ,00, ,o •o° o .o a °— °go• o0 0 00 °go. r A'_ VARIES PLAN VIEW CASCADE STRUCTURE SCALE:NTS SEAL p 32733 g pi /rf 7�1141 yL1j17'1 DISTRIBUTE RIFFLE GRADE EVENLY THROUGHOUT BOULDER DROPS. EXACT NUMBER OF DROPS TO BE DETERMINED BY DESIGN REPRESENTATIVE. DESIGNED POOL ELEVATION WRAP AND STAKE COIR MATTING UNDER CONSTRUCTED BANK 10 % NATIVE SOIL 30 % CLASS A STONE 60 % CLASS B STONE (WASH IN NATURAL STONE AND SOIL MATERIAL TO FILL IN VOIDS) NOTE: PER DESIGNER'S DIRECTION, INTERSPERSE WITH WOODY DEBRIS THAT EXTENDS INTO POOL TO ENHANCE HABITAT. to o --- -- ----- 0 0— -o o . 0 0 o o" ° B o0 o F(OW oo • LL �o °° g o • o °° oo a °° g o BOTTOM OF BANK 0 0 0 o o TOP OF BANK (BANKFULL) 0 vm wo F� � N QJ O� KQ w0 U) = w- LL ZO oZ J (� QW LL Q v f DETAILS REACH: T1-xsA - STATION 10+00 TO 27+46 I'll STREAM TYPE SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS 9 4' '\25_ 27 2' 2' 27 -1�- 1- 2yi SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS TYPICAL RIFFLE 0 = THALWEG LOCATION 13.2' 8.5' 47 1 2.7 TYPICAL POOL - RIGHT MEANDER SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS r' + 13.2' 1 \z5 1 4.T 8.5' I 2 7' TYPICAL POOL - LEFT MEANDER REACH: T2-xsB - STATION 203+17 TO 207+53 "C4" STREAM TYPE REACH: T1-xsB - STATION 27+46 TO 31+37 "C4" STREAM TYPE SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS 12.4' 37 2.5' 2.5' 37 TYPICAL RIFFLE 0 = THALWEG LOCATION SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS 17 4' 1 11.26.21 \25..1 \' '� _-_-_-_-_-_-_� I TYPICAL POOL - RIGHT MEANDER SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS + 17.4' 6.2' 11.2' 3.6' TYPICAL POOL - LEFT MEANDER REACH: T2-xsC - STATION 207+53 TO 213+28 "C4" STREAM TYPE REACH: T2-xsA - STATION 200+00 TO 203+17 REACH: T3 - STATION 300+00 TO 302+44 "C4" STREAM TYPE SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS 6.2' \zs 1 1.8'11.3+1.3_T1.8' ,1I I I I 2i- TYPICAL RIFFLE 0 = THALWEG LOCATION SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS 8 7 - 5.6' 3.1' 1 t I TYPICAL POOL - RIGHT MEANDER SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS 8.7' \z5 3.1' 5.6' �I I �-1 TYPICAL POOL - LEFT MEANDER REACH: T2-xsD - STATION 213+28 TO 227+42 "C4" STREAM TYPE CApo SEAL 32733 �� • ,qs r r ,• +Iifl .,,,NAEL �'./•• +�{11111s11i1/ -4' -2' 0' 4' 8' GRAPHIC SCALE REACH: T4 - STATION 400+00 TO 402+84 "C4" STREAM TYPE SEE PLAN SHEETS FOR FLOODPLAIN SEE PLAN SHEETS FOR FLOODPLAIN SEE PLAN SHEETS FOR FLOODPLAIN SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS EXTENTS EXTENTS EXTENTS SW 1 6.8' T 1 z 1.9' 1.3' 1.3'1 1 9' 2 J 1 Z 1 2.3' 1 1.7' 1.7' 1 2.3' 1 1/ 1 1 2.5' 2' 2' 2.5' 1 2' 1 4' 1.4' 2' 1 1 1 25i1i'?5: LLI J O 0 c 0 TYPICAL RIFFLE TYPICAL RIFFLE TYPICAL RIFFLE TYPICAL RIFFLE 0 U O= THALWEG LOCATION O= THALWEG LOCATION O= THALWEG LOCATION O= THALWEG LOCATION z z Z m SEE PLAN SHEETS FOR FLOODPLAIN SEE PLAN SHEETS SEE PLAN SHEETS SEE PLAN SHEETS FOR FLOODPLAIN cQ G Z Z EXTENTS FOR FLOODPLAIN EXTENTS FOR FLOODPLAIN EXTENTS EXTENTS Q O 9 11.2' 12.6' 9.5' t w H 32' I �z�-� I I 72' 4' I 1 2 I I 8.1' 4.5' I 1 1 2 I I 8.1' 34' I 1�- Z O J ~ 2 w 2.6' N a TYPICAL POOL - RIGHT MEANDER TYPICAL POOL - RIGHT MEANDER TYPICAL POOL - RIGHT MEANDER TYPICAL POOL - RIGHT MEANDER Y J U a Q J m SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS 1 9' 1 3.2' 5.8' 1 TYPICAL POOL - LEFT MEANDER SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS 11.2' SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS 12.6' SEE PLAN SHEETS FOR FLOODPLAIN EXTENTS 9.5' 4' 7.2' 11 2 4.5' 8.1' 1 1 7 1 3.4' 6.1' 1 I a _ - 2.3' a 2.6' _ 2 TYPICAL POOL - LEFT MEANDER TYPICAL POOL - LEFT MEANDER TYPICAL POOL - LEFT MEANDER TYPICAL CROSS - SECTIONS 12" PEP FLOODPLAIN CULVERT SET AT ELEVATION APPROXIMATELY TWO-THIRDS OF MAIN STRUCTURE'S INSTALL RIPRAP CAPACITY UP TO TOP OF ROADWAY EDGE F77 PIPE OR BOX CULVERT PER PROPOSED CROSSING SIZING TABLE BELOW MIN. FILL 1' ^^ 6" ABC STONE ° O O ° O CLEAN FILL FILL DIRT STABILIZE WITH CLASS 1 RIPRAP O O OOo O �z EMBED CULVERT UNTIL ROADWAY Q� O O O O 0 z� F 1' BELOW INVERT TRANSITIONS ° O o O ° 0 00 O O z o O USING: 10% CABC STONE INTO NATURAL � O OOo O Soo 10% CLASS A STONE GRADE. 20% CLASS B STONE ys° 60% CLASS 1 STONE STRUCTURE INVERT TOP WITH SURGE STONE (EMBEDDED TO FILL VOIDS AND UNLESS NOTED) WASH IN NATURAL STREAM MATERIAL TO REACH FINAL GRADE BANK STABILIZATION DETAIL ROADWAY DETAIL (REPLICATE ON OTHER SIDE) (REPLICATE ON OTHER SIDE) UPSTREAM SECTION TYPICAL C;ROSSING3 - PROFILE VIEW LENGTH OF STRUCTURE TOP OF ROADWAY WIDTH 6" ABC STONE CLASS 1 STONE 6" CLEAN FILL DIRT O STREAMBED �E FLOW mz ELEVATION SEE NOTE ON EMBEDDED ROCK MIX OW a w ° O OoO °0000 ° Oo00 o 00(0:) - 0 O oo 0 o a 0 0 00. o IL0 STRUCTUREINV. EMBEDDED 1FT STRUCTUREINVERT UNLESS NOTED EMBEDDED 1 FT OTHERWISE PROFILE A -A' THROUGH PIPE OR BOX UNLESS NOTED OTHERWISE PROPOSED CROSSING SIZING PROJECT WIDTH OF APPROX. PROPOSED LENGTH OF UPSTREAM DOWNSTREAM UPSTREAM DOWNSTREAM REACH ROADWAY(FT) TOP OF STRUCTURE PROPOSED ELEVATIONS (FT) ELEVATIONS (FT) STRUCTURE STRUCTURE ROADWAY (ALL STRUCTURE STREAM BED / STREAM BED / STATION STATION EMBEDDED 1 FT (FT) EMBEDDED EMBEDDED ELEVATION BELOW STRUCTURE (FT) STREAM STRUCTURE THALW EG UNLESS NOTED T1 Top 20 610.0 60" HDPE 30 604.83 stream / 604.56 stream / 10+18.55 10+48.55 603.83 emb 603.56 emb T1 Middle 20 590.9 8' x 5' 30 585.23 stream / 584.50 stream / 29+12.85 29+42.85 CONCRETE BOX 584.23 emb 583.50 emb T1 Bottom 20 578.6 10' x 5' 30 572.67 stream / 572.67 stream / 38+63.80 38+93.80 CONCRETE BOX 571.67 emb 571.67 emb T2 Top 15 625.0 36" HDPE 20 621.36 stream / 619.88 stream / 199+80.00 200+00.00 620.36 emb 618.88 emb T2 Middle 20 689.0 54" HDPE 30 606.45 stream / 606.08 stream / 210+27.18 210+57.18 605.45 emb 605.08 emb T3 Top 15 625.2 42" HDPE 20 576.40 stream / 575.00 stream / 299+18.23 299+38.23 575.40 emb 574.00 emb Above 15 580.6 36" HDPE 30 621.70 stream / 621.40 stream / N/A N/A Pond 620.70 emb 620.40 emb NOTES: CULVERT THICKNESSES ASSUMED TO BE 8". ACTUAL THICKNESSES TO BE DETERMINED BY FABRICATOR. DESIGN ROADWAY FILL IS A MINIMUM OF 1.0' AT ALL CROSSINGS. IN LIEU OF WINGWALLS SEE RIPRAP PROTECTION/STABILIZATION. ��4114111!!!! rr r�H 4Afj, p. SEAL 32733 AEL !!!l111145�i�. a 6" COVER OF ABC STONE UNDERLAID BY 6" CLEAN FILL DIRT FOR EXTENT OF ROADWAY. COMPACT FILL DIRT IN 0.2'-LIFTS BEFORE INSTALLING ABC STONE. TIE OUT ROADWAY GRADING CLASS 1 AT EXTENT OF FLOODPLAIN GRADING. STONE / - 00C 0 D o 0 ° 0 o 00 O a ° o Q oQ ° ° 0 0 ° Do o a o ° 0 o 0 ° OC >Oo a o° °o ° ° ` ° o° °0-_( 0 o ° n 1 0 FLOW A JU o 0 v� J oc-) 0° 0 0 0 0 a OO ° 0 0( o 00° °Q° ° o 0 0 0 ° O,aDoO ° CLASS 1 STONE 12" PEP FLOODPLAIN CULVERT PIPE OR BOX (SEE TABLE FOR SIZING) �A' 0 0 o D ° 0 -0 _)� O °° 0 0 0°°° O O 12" PEP Q FLOODPLAIN ° 0 o CULVERT a 0 a 0 0>v 0 0° a , o 0 0 ° a Du O 00 0�°�°0 °a ° 0 d o o o o° 0 o Q ° 0 0 tD D ° o a ° ROADWAY WIDTH PIPE OR BOX LENGTH 0 Z Q z O 0 Y C) Z Q = Q m Q Z z Lu Q D U) (D O J ~ W J � U Q m < Y g 0 a J m CULVERT DETAILS �z��Fl lflly, jai CAgQ��,,,�� c •t4,.•'�Itt NC GRIG SEAL NAD '83 i w. 32733 ! 4 z -40' -20' 0' 40' 80' %�"A'• , g GRAPHIC SCALE i�fs'ISw�AEL �+�!!1lIlAllll PROPOSED'WATER QUALITY tt o a REDIRECT AND STABILIZE TREATMENT AREA'. SEE DETAIL SHEET. a INCOMING DRAINAGE WITH ROCK OUTLET. ` SEE DETAIL SHEET. PROPOSED FLOODPLAIN GRADING EXTENTS CONSERVATION EASEMENT i i O _ o—_ _� --- O N E S RVgTipN o po _-------- 2 _ o---��, o E ASEMENT F o O x _-T�x _ � � �z Z W 0��`N 0a ¢o °Q w Z /�- - — - — - — - — - - — - - - - - - - - - - - 'o Z W w U) Jw _ - \ w ai Q EASEMENT - - Z W a CONSERVATION i _ U FILL EXISTING CHANNEL PROPOSED 'STEP POOL'. � (TYPICAL ALL HATCHING) SEE DETAIL SHEET. 0 , t / PROPOSED'LIVE LIFT'. PROPOSED'CHANNEL BLOCK'. SEE DETAIL SHEET. PRO POSED 'RIFFLE ENHANCEMENT'. SEE DETAIL SHEET. O O SEE DETAIL SHEET. Q 01 PROPOSED'CASCADE STRUCTURE'. z SEE DETAIL SHEET. Q H- ¢ z \ PROPOSED'RIFFLE GRADE CONTROL'. U-1 O SEE DETAIL SHEET. 0 U BEGIN TRIBUTARY 1 (1) 5.0' DIA. x 30' LONG HDPE STREAM z Q CULVERT - 1' EMBEDDED (2) FLOODPLAIN m z O CULVERTS (LONG Q LLI p } PROPOSED 20' WIDE ACCESS DRIVE ¢ z � cn U' O J ~ U J Z) w U z m < Y � Q¢ NOTES: J 00 CONTRACTOR SHALL TAKE ALL PRECAUTIONS TO MINIMIZE DAMAGING EXISTING NATIVE TREES WHERE POSSIBLE. SOS BEFORE STARTING WORK IN LOCATIONS NOTED NOV 2019 ON PLANS AS'EXISTING WETLANDS', CONTRACTOR = GRAPHIC RpC SHALL COORDINATE WITH DESIGNER TO LIMIT /r DISTURBANCE IN THESE AREAS WHERE POSSIBLE. C�FF� SITE QO PLAN SHEET 6 OF zs 1jlllli llifff Aq�� .'r�Q, SEAL - NAD '83 7 r n Y2733 ! z P -40' -20' 0' 40' 80' � %?"9 �. ~,`� `LA ) GRAPHIC SCALE OKI�r,. .�''��AEL ►�'�: ,La ''fff 1111 F11111 STABILIZE INCOMING FILL EXISTING CHANNEL DRAINAGE WITH (TYPICAL ALL HATCHING) ROCK OUTLET. INSTALL 5' MINIMUM FLOODPLAIN BENCH SEE DETAIL SHEET. PROPOSED'RIFFLE GRADE CONTROL'. (TYPICAL ALL GREY AREAS ALONG STEAM SEE DETAIL SHEET. BANKS). TIE OUT AT A 2.5:1 SLOPE AND PROPOSED'RIFFLE GRADE CONTROL'. STABILIZE WITH COIR MATTING. SEE DETAIL SHEET. p a. REDIRECT AND STABILIZE 0 W� CONSERVATION INCOMING DRAINAGE WITH I ROCK OUTLET. PROPOSED 'WATER QUALITY TREATMENT AREA'. PROPOSED'CASCADE STRUCTURE'. SEE DETAIL SHEET o v Nz a EASEMENT SEE DETAIL SHEET. SEE DETAIL SHEET. . , 0 cr w p ►./ o w a z _ EPSEME w� g Z \ON O O a oz w `L�Lu XO + I CONSER h o w w �---�0��-- o o in ^� Ar w LL Z QQ = (q z o� w v F- w �J) O _ -- -�---- W 00 oo 'A AO �+ �_ CONSFRVATI �� Y��> � °.� Q ON , SEMEN EASEMENT � N / ` INI EP � - — - GO�SERJ T cl Z pp / SEEODOETAIDL SHEETFT'. Q REDIRECT AND STABILIZE ZZ ' Q z INCOMING DRAINAGE WITH PROPOSED'LIVE LIFT'. Lu -,::i ROCK OUTLET. i , SEE DETAIL SHEET. 0 SEE DETAIL SHEET. / M v ' z Z PROPOSED'STEP POOL'. SEE DETAIL SHEET. (1) 8' x 5' x 30' LONG CONCRETE STABILIZE INCOMING STREAM BOX CULVERT V EMBEDDED Q - DRAINAGE WITH m PROPOSED'CHANNEL BLOCK'. SEE DETAIL SHEET. / (2) 12" DIA., 30' LONG FLOODPLAIN ROCK OUTLET. CULVERTS zz (PEP) SEE DETAIL SHEET. Z /' 00+ �z ' PROPOSED'RIFFLE ENHANCEMENT'. W � ~ F- SEE DETAIL SHEET. PROPOSED 20' Q z PROPOSED FLOODPLAIN GRADING EXTENTS ' / A, <u WIDE ACCESS DRIVE D O / /� ' J J Z) z p0+ �Q / 2 m 2 �' U 41q ' / ��� NOTES: m O NF CONTRACTOR SHALL TAKE ALL PRECAUTIONS SFFS TO DAM A EAGING EXISTING NATIVE TREES /YFFTS9 WHERE PIZE BEFORE STARTING WORK IN LOCATIONS NOTED DATE; Nov zois /� F OR ON PLANS AS'EXISTING WETLANDS', CONTRACTOR ALE. GRAPHIC SHALL COORDINATE WITH DESIGNER TO LIMIT TRi C/TgRy2 DISTURBANCE IN THESE AREAS WHERE POSSIBLE. SITE PLAN SHEET 7 OF zs w W W w w U w z J S U H Q .*ti1ftI It hied/1 •�••�P�%A CAgp�,.�, ;A SEAL 4� 32733 t ,� A.91N L �'� `•``• rr+rtjp��t�t���. SPOIL PILE TO BE REMOVED SLOPE BANKS BACK TO 2:1 ALONG EXISTING WET DEPRESSION. STABILIZE BANKS WITH COIR MATTING AND ENHANCE OUTLET AS NEEDED. i CONSERVATION EASEMENT -40' -20' 0' 40' 80' GRAPHIC SCALE INSTALL 5' MINIMUM FLOODPLAIN BENCH - (TYPICAL ALL GREY AREAS ALONG STREAM BANKS). TIE OUT AT A 2.5:1 SLOPE AND STABILIZE WITH COIR MATTING. EXISTING TREE TO REMAIN O O O O + 04 6+ O k ♦ � O O PROPOSED 20' — EXISTING TREES - WIDE ACCESS DRIVE TO REMAIN (1) 10' x 5' x 30' LONG CONCRETE PROPOSED STREAM BOX CULVERT - V EMBEDDED 'CHANNEL BLOCK'. (2) CULVERTS (LONG FLOODPLAIN SEE DETAIL SHEET. BEGIN TRIBUTARY INSTALL (1) 42" DIA. x 20' LONG HDPE STREAM - CULVERT - T EMBEDDED AT ROAD CROSSING. (SEE DETAIL SHEET 5 FOR INVERTS) EXISTING ACCESS ROAD J TO BE ENHANCED AS NEEDED '02 �O�v oox Gp i PROPOSED'LIVE LIFT'. SEE DETAIL SHEET. 00+gti i O 00+A-v O � 00 k ♦ / \ 00t\� PROPOSED FLOODPLAIN - GRADING EXTENTS �RJP p�5 - G PROPOSED'RIFFLE ENHANCEMENT. SEE DETAIL SHEET. REDIRECT AND STABILIZE INCOMING DRAINAGE WITH ROCK OUTLET. SEE DETAIL SHEET. 00+ ' / PROPOSED FLOODPLAIN 0£ GRADING EXTENTS /r r PROPOSED'STEP POOL'. SEE DETAIL SHEET. PROPOSED'RIFFLE GRADE CONTROL' SEE DETAIL SHEET. PROPOSED'RIFFLE ENHANCEMENT. SEE DETAIL SHEET. / ENHANCE AND STABILIZE / OUTLET AS NEEDED i i END TRIBUTARY 1 FILL EXISTING CHANNEL (TYPICAL ALL HATCHING) PROPOSED'LIVE LIFT'. SEE DETAIL SHEET. OUkO � BEGIN TRIBUTARY 4 PROPOSED'STEP POOL SEE DETAIL SHEET. NOTES: CONTRACTOR SHALL TAKE ALL PRECAUTIONS TO MINIMIZE DAMAGING EXISTING NATIVE TREES WHERE POSSIBLE. BEFORE STARTING WORK IN LOCATIONS NOTED ON PLANS AS'EXISTING WETLANDS', CONTRACTOR SHALL COORDINATE WITH DESIGNER TO LIMIT DISTURBANCE IN THESE AREAS WHERE POSSIBLE. ply Q z Q z Lu O Of z 0 z 2 Q in ry z z W H F- Q D cn 0 0 o J ~ W J U z co 2 Y a C) a J CO SITE PLAN -40' -2 0' 040' 80' GRAPHIC SCALE BEGIN TRIBUTARY 2 (1) 3.0' DIA. x 20' LONG HDPE STREAM CULVERT -T EMBEDDED PROPOSED 15' WIDE ACCESS DRIVE (1) 3.0' DIA. x 30' LONG HDPE STREAM CULVERT - T EMBEDDED NOTES: CONTRACTOR SHALL TAKE ALL PRECAUTIONS TO MINIMIZE DAMAGING EXISTING NATIVE TREES WHERE POSSIBLE. BEFORE STARTING WORK IN LOCATIONS NOTED ON PLANS AS'EXISTING WETLANDS', CONTRACTOR SHALL COORDINATE WITH DESIGNER TO LIMIT DISTURBANCE IN THESE AREAS WHERE POSSIBLE. PROPOSED'LIVE LIFT'. SEE DETAIL SHEET. PROPOSED'CHANNELBLOCK'. SEE DETAIL SHEET. N EASE O / 0 N 2 ♦�``` Cv OLO k 1csl WETLAND'W1' % REDIRECT FLOW TO PROPOSED RIFFLE PROPOSED 'STEP POOL'. SEE DETAIL SHEET. EXISTING SHED TO BE REMOVED EXISTING POND LEVEE AND BANKS TO BE GRADED TO MATCH NEW STREAM FLOODPLAIN STABILIZED EROSION AREA — CAUSED BY BREACHED LEVEE WITH SEED AND MULCH BEGIN TRIBUTARY 2-1 FILL EXISTING CHANNEL (TYPICAL ALL HATCHING) PROPOSED FLOODPLAIN GRADING EXTENTS �1: O X O O cp (1) 4.5' DIA. x 30' LONG HDPE STREAM CULVERT-1'EMBEDDED (2) 12" DIA., 30' LONG FLOODPLAIN CULVERTS (PEP) ---\ EXISTING TREE TO REMAIN PROPOSED'RIFFLE ENHANCEMENT. SEE DETAIL SHEET. PROPOSED'RIFFLE GRADE CONTROL' SEE DETAIL SHEET. REDIRECT AND STABILIZE INCOMING DRAINAGE WITH ROCK OUTLET. SEE DETAIL SHEET. REMOVE PRIVET ALONG TRIBUTARY 2-1. GRADE BANKS BACK AT 2:1 SLOPE AND STABILIZE HEADCUTS WITH 'RIFFLE ENHANCEMENT' BED MATERIAL. SEE DETAIL SHEET. 0 1- w w co w w w Z x U Q S ICI ~ z Z ON W (n ¢ ' ` O <Z V w w0 Z W,2 a z'r z LL 0 K J j z LL w a 0 Z Z O C) z c) Z = Q m Z z Q W LD H H Q � (q (D o U J ~ W J U Q 00 2 Y i Q a J m SITE PLAN EXISTING TREES TO REMAIN w w U) W W U Lu Z J 2 - U PROPOSED 20' WIDE ACCESS DRIVE 1 1 1 1 1 1 1 1 1 \ I 1 1 1 1 1 1 1 1 EXISTING �� V\ WETL AND'W2' 1 1 1 1 1 i 11 i i I�l EXISTING I UTILITY EASEMENT I i PROPOSED 'WATER QUALITY] TREATMENT AREA'. SEE DETAIL SHEET. 1 i 1 �1 1 _ CONSERVATION EA MENT— 1 i PROPOSED'STEP POOL'. SEE DETAIL SHEET. 1 i� PROPOSED'RIFFLE GRADE CONTROL'. SEE DETAIL SHEET. �21 1 1 � 1 i 1 I i i a 1 i� 1 Y 1 W lei U Y I''I OU a i Q 6 Y w Of U Y U O a Go 2 W o 0 Ilk - FILL EXISTING CHANNEL (TYPICAL ALL HATCHING) N PROPOSED'LIVE LIFT'. SEE DETAIL SHEET. PROPOSED'RIFFLE ENHANCEMENT'. SEE DETAIL SHEET. an, v c9 1 -40' -20' 0' 40' 80' GRAPHIC SCALE 111111i1}71!!�`, OR ► SEAL 0 32733 r4 � •��,~ O > NAEL ��%lJli lli5i 111 0 0 � ao z W ON o a cn ¢Z �= PROPOSED'CHANNEL BLOCK'. u °° SEE DETAIL SHEET. w w CONSERV ATION I� Z D_ a Wo z EASEMENT LL°z 0 O O U)= W J V _ z a LU J O U' o� _ W W n C-11 In ��� w w CONSERVATION EASEMENT PROPOSED FLOODPLAIN GRADING EXTENTS NOTES CONTRACTOR SHALL TAKE ALL PRECAUTIONS TO MINIMIZE DAMAGING EXISTING NATIVE TREES WHERE POSSIBLE. BEFORE STARTING WORK IN LOCATIONS NOTED ON PLANS AS'EXISTING WETLANDS', CONTRACTOR SHALL COORDINATE WITH DESIGNER TO LIMIT DISTURBANCE IN THESE AREAS WHERE POSSIBLE. 0 z Q I— z W J O � Y U z Q = Q m z O Q W H H Q Z:) W (D O U J ~ W J U D z 00 2 Y i 0 a Q J m SITE PLAN REACH: TRIBUTARY 1 PROPOSED EXISTING PROPOSED 610 CULVERT GRADE PROFILE 606 602 598 594 590 86 . z - ,- o m M �- �: . M - " 8 - - - - - - r b ,o 'o . 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J' _ m W� O 0 K o rn K-N -.'__ _ •__'_ >_ d W -.� _'--2 w �' JN = J _.H'~ - N >_ ry a_.__, N > __•__ --'-G O'Q ° M --'Nn}-0;- Z' Z m Oor/ --m-- °¢I----- __ ----iti ccpp M1to r _ai•__ ____ - _'- - ---- -- ---- --------- -- ---- 1�;-----' I__ -l'---'--' � __ �__'__•__ ____, __ __'__ __ ____"__ __'_____•_____'__ _______ __ ____ __ ____ __ __ �> w' O___"__•_ �'z bia --'_-_'-----'_-------'_-_'---- -_'-�' J->_-- N >' N> -r- G-- �' Z z' +' m+ z;i° N z; `O �_��� 0 0 I1J�� HQF N E7 Q� N, O,N r' Q ' d, +us;+rmn� m r' NN Q ' N z, m Q ' � cK z' ��, � � � : > W 1d � F � m, H �� m W � � Q � � Q O' : N H � Z m Z > w> w N N W 578 220+00 221+00 222+00 223+00 224+00 225+00 226+00 227+00 228+00 Q m Q� C z z Q O W - � Z (n UI O - J ~ U W J U z m Q 2i Y Q Q Q J m PROFILES T 12 OF 29 ►tit►�►�i�►�i■� SEAL p : 32733 7 . �►�= V, 0 r Ln MAEL ���e�rliiittt►t. REACH: TRIBUTARY 3 EXISTING PROPOSED GRADE PROFILE U) o 582 rn N Fm uu ^z Z �N w ya o U oz w Q00 578 U 0 w w o N Z z 7 J w� Z0 d W Z n O A 574 K J (D LLLu J Z_ U o� w v 570 566 562 p Z J Q Z W � 5300+00 301+00 302+00 303+00 O Q 0 REACH: TRIBUTARY 4 EXISTING PROPOSED Z U GRADE PROFILE Z Q = 574 Q CO~ O 2 Z z Q W r z 570 Q (n C� O U 0 J ~ W J U 566or O Z m Q Y U 562 Q J m 558 DATE: NOV 2019 scA�E: 1"=40' 554 PROFILES 550 400+00 401+00 402+00 403+00 SHEET 13 OF 29 tq + O F ¢' fq > a F' H Q' N > o Z o Z N N a J ¢ a ' a a J � � � tp I• > W y > w, Q � N w N W Z; ml O '2 k o + 0 F w a � O 4 tG Oi O III WWW aww r a r ¢ 0 Q O, ' $ rn rn rn - ------- ----------------- - ------ --------------- ---- - --- --- - - - - ---- -- - -------------------------- - -- -- -- ------------ _ _ WQ~ Q~ c Z Z � V a J a J p, w a a a a ,"j111too 10to,, `•q+' �� 0 u~i SEAL W NC GRID � O NAD '83 Y : 32733 -60' -30' 0' 60' 120' ,'per JC � GRAPHIC SCALE '-TAEL "'w U W N 0 0 m W 0 O Q lfi O d � O Lu (0W , Z F in LL W fn N Q w W az ` '�l I! V 0K LLl N W 'S U z ^ ¢ Z L_ J W J Z K = o. LL O 0 2 W Q W V' O W RIPARIAN FOREST PLANTING: STREAM ZONE: PLANTING ZONE 1 = 16.6 ACRES STREAM ZONE LIVE STAKES: 1.5' TO 2' LENGTHS, 1/2' TO 2" DIAMETER, z 12" - 18" BARE ROOT MATERIAL PLANT ONE ROW PER BANK AT 3' SPACING, RANDOM Q 968 STEMS/ACRE (9' X 5' SPACING), RANDOM SPECIES PLACEMENT SPECIES PLACEMENT. Z W J COMMON NAME SCIENTIFIC NAME O COMMON NAME SCIENTIFIC NAME STATUS % OF TOTAL # OF PLANTS Q� AMERICAN SYCAMORE PLATANUS OCCIDENTALIS FACW 20 3,200 BLACK WILLOW SALIX NIGRA z z U SWAMP CHESTNUT OAK QUERCUS MICHAUXII FACW 20 3,200 SILKY WILLOW SALIX SERICEA Q m GREEN ASH FRAXINUS PENNSYLVANICA FACW 5 800 SILKY DOGWOOD CORNUS AMOMUM RIVER BIRCH BETULA NIGRA FACW 20 3,200 z O WILLOW OAK QUERCUS PHELLOS FAC 15 2,500 SUGARBERRY CELTIS LAEVIGATA FACW 5 800 NOTE: NO SINGLE LIVE STAKING SPECIES W O H AMER CAN PERSIMMON DIOSPYROS VIRGINIANA FAC 5 800 SHALL COMPOSE MORE THAN 40% OF THE TOTAL FLOWERING DOGWOOD CORNUS FLORIDA FACU 5 800 0 NUMBER OF LIVE STAKES TO BE INSTALLED. 16,100 �z U J — W * ALL AREAS WITHIN THE EASEMENT AND CLEARED FOR RESTORATION WILL BE PLANTED. J U ANY FORESTED AREAS WITH LOW STEM DENSITY MAY BE PLANTED TO INCREASE DENSITY Q UNDER THE DIRECTION OF THE DESIGN REPRESENTATIVE. 00 < BEFORE COMMENCING WITH ANY CLEARING ACTIVITIES IN THE FORESTED AREA, Y i CONTRACTOR SHALL CONTACT THE DESIGN REPRESENTATIVE TO COORDINATE WHICH Q Q TREES WILL BE REMOVED TO ENABLE CONSTRUCTION ACTIVITIES, AND WHICH TREES J SHALL REMAIN. CONTRACTOR SHALL TAKE ALL PRECAUTIONS TO MINIMIZE DISTURBANCE m TO MATURE AND DESIRABLE TREE SPECIES THROUGHOUT THE WORKING AREA. -=: NOV 2019 GRAPHIC PLANTING PLAN MATCHLINE - SEE SHEET 16 SHEET 14 OF zs Y Z Q d m p SQUARE CUT o Z BUDS H m (FACING UPWARD) o LIVE CUTTING ~ PLANTING ZONE 1 "' SEAL '32733 (0.5" TO 2" DIAMETER) � p �• /v w '? • : z LIVE STAKE rr NAEL ��• ANGLE CUT 30°-45° STREAM ZONE /!!l1J 1161141if�1 a STRfA7 1W 94NKCROSS-SECT/ON *NOTE: SEE SHEET 14 FOR PLANTING QUANTITIES PLANTING NOTES: RIFFLES - 1 ROW OF LIVE STAKES ON BOTH SIDES OF CHANNEL. POOLS - NO LIVE STAKES ON INNER BENDS, 1 ROW ON OUTER BENDS. (INSTALL TWO ROWS OF LIVE STAKES ALONG BANKS OF ENHANCEMENT AREA, STATION 31+38 TO STATION 47+51) LIVE STAKES SCALE: NTS N W o �z Z 7N LL W U o Nox �p nQ QQ K W oQ NU Z Q Z� d W o ANY AREAS WITHIN THE o= FORESTED AREA DEEMED w w � cD <w LOW DENSITY SHALL ALSO BE PLANTED PER DESIGN (D REPRESENTATIVE GUIDANCE w c c F w w tT w w Z w Z Q J Q w 2 � W Z J Q ANY AREAS WITHIN THE >> Of FORESTED AREA DEEMED LOW DENSITY SHALL ALSO BE PLANTED PER DESIGN Z Z U Q REPRESENTATIVE GUIDANCE Q m Z z Q W O Q (n U' Z) O J ~ U J W U m a � Y a Q Q NA ND '6 83 g3 m -60' -30' 0' 60' 120' GRAPHIC SCALE NOV 2019 GRAPHIC PLANTING PLAN SHEET 15 OF zs .�� %A GAR ' !. mo SEAL O . 32733 PLANTING ZONE 1 PINS --k •' V) V) :� 4 F. -60' -30' 0' 60' 120' STREAM ZONE GRAPHIC SCALE *NOTE: SEE SHEET 14 FOR PLANTING QUANTITIES 0 m y C wo r� I� z Z 7), ANY AREAS WITHIN THE LL w U) Q 5 d? � 0 FORESTED AREA DEEMED LOW DENSITY SHALL ALSO a 0 o w w a BE PLANTED PER DESIGN < z ._ REPRESENTATIVE GUIDANCE g zal w a 10 0 w z LL w a v H W W 2 W W NMI W Z J x U p H Q z Q F— Z_ W J O p Y v Z Q = Q ~ m Z O W H Q D (q (D O U J ~ W J � U Z m Q 2 � Q U Q Q J m NOV 2019 GRAPHIC PLANTING PLAN SHEET 16 OP 29 NAo 'sa —60' —30' 0' 60' 120' GRAPHIC SCALE "{111il1l"j, H CA40 ff" } SEAL p 32733 :C� EEL __} __X �-X _-.---X � k�\ X X—___�_-- X k� X -� X X ��� X �� X x X ___�___— X ---�— X ---�— X ---�— X---�---- X k �\ x k � k x � X X / k X EASEMENT BOUNDARY MARKING THE EASEMENT BOUNDARY WILL BE MARKED WITH METAL POSTS AND CONSERVATION EASEMENT SIGNS AT THE CORNERS AND AT A MINIMUM OF 100' INTERVALS ALONG THE BOUNDARY. O — X — 5/8" REBAR 30" IN LENGTH WITH 3-1/4" ALUMINUM CAPS ON ALL EASEMENT CORNERS. 6-FOOT TALL DURABLE WITNESS POST ALONG BOUNDARY OF CONSERVATION EASEMENT. POSTS SHALL BE MADE OF MATERIAL THAT WILL LAST A MINIMUM OF 20 YEARS. THE PROV DER SHALL ATTACH A CONSERVATION EASEMENT SIGN TO EACH WITNESS POST AND PLACE ADDITIONAL SIGNS AT NO MORE THAN 100-FOOT INTERVALS ON BOUNDARY LINES. INSTALL WOVEN WIRE FENCE 00 0 Z Q J Q z W —i o 0 t� Y U zQ = Q M Of 2 Z z Q W O H � z �a cn C� o U J ~ w J U Q m � Y Q U Q Q J 00 BOUNDARY MARKING PLAN MATCHLINE - SEE SHEET 19 w w w w w z U H Q EASEMENT BOUNDARY MARKING THE EASEMENT BOUNDARY WILL BE MARKED WITH METAL POSTS AND CONSERVATION EASEMENT SIGNS AT THE CORNERS AND AT A MINIMUM OF 100' INTERVALS ALONG THE BOUNDARY. O 5/8" REBAR 30" IN LENGTH WITH 3-1/4" ALUMINUM CAPS ON ALL EASEMENT CORNERS. 6-FOOT TALL DURABLE WITNESS POST ALONG BOUNDARY OF CONSERVATION EASEMENT. POSTS SHALL BE MADE OF MATERIAL THAT WILL LAST A MINIMUM OF 20 YEARS. THE PROV DER SHALL ATTACH A CONSERVATION EASEMENT SIGN TO EACH WITNESS POST AND PLACE ADDITIONAL SIGNS AT NO MORE THAN 100-FOOT INTERVALS ON BOUNDARY LINES. — X — INSTALL WOVEN WIRE FENCE SEAL 32733 . ��' J ��1�1lIIIti11 Yt f X X X�X � �X _i_ X i_ �' X � � X X X X X ,'� �— X f � f f f � X� X �— X --�-�i X NCNC �qI�� NAD '83 -60' -30' 0' 60' 120' GRAPHIC SCALE 0 e w wg ~ z Z ON LL w 0Q <10 V o W W of U < Z =F 5 Zff 10 0 J = z I w V 0 Z z 0 0 z C) Z = Q m Q z z W 0 H � Q Z) cn (D o U J ~ w J � U z m Q Y � U Q Q J m BOUNDARY MARKING PLAN EASEMENT BOUNDARY MARKING THE EASEMENT BOUNDARY WILL BE MARKED WITH METAL POSTS AND CONSERVATION EASEMENT SIGNS AT THE CORNERS AND AT A MINIMUM OF 100' INTERVALS ALONG THE BOUNDARY. O 5/8" REBAR 30" IN LENGTH WITH 3-1/4" ALUMINUM CAPS ON ALL EASEMENT CORNERS. 6-FOOT TALL DURABLE WITNESS POST ALONG BOUNDARY OF CONSERVATION EASEMENT. POSTS SHALL BE MADE OF MATERIAL THAT WILL LAST A MINIMUM OF 20 YEARS. THE PROVIDER SHALL ATTACH A CONSERVATION EASEMENT SIGN TO EACH WITNESS POST AND PLACE ADDITIONAL SIGNS AT NO MORE THAN 100-FOOT INTERVALS ON BOUNDARY LINES. — X — INSTALL WOVEN WIRE FENCE 11�{iCAFJO l liH ly�� SEALmo 32733 �+!l11111ti11� -60' -30' 0' 60' 120' GRAPHIC SCALE X X x �� X�--XTX-�XX� X 4 X—�\^T/l X ��- X x X X f X �----1•— X X x �X X � � X k k } k �X--XX x f x k k �- X F- w w w w w z J 2 U 0 0 U) w I� Z z N w U) Q w O z U) QO oof "fQ I w3 z �_ Q z� a. w0 O U)m: w aw z �a Lu z �� 0 z Q Q z W zi o !� Y U z Q = Q m z z W O H � z Q Z:) U) U o Lu J � U Q m � Y Q U Q Q J m BOUNDARY MARKING PLAN SEEDING AND PLANTING NOTES: TEMPORARY SEED MIX SEDIMENTATION AND EROSION CONTROL NOTES: 1. IT IS THE INTENT OF THESE PLANS THAT AS SOON AS AN AREA OF GRADING IS COMPLETE IT SHALL BE STABILIZED IN ACCORDANCE WITH THE EROSION CONTROL PRACTICES DESCRIBED IN THESE PLANS.DUE TO THE ANTICIPATED DURATION AND SEQUENCE OF THE CONSTRUCTION ACTIVITIES, THE CONTRACTOR IS REQUIRED TO MINIMIZE, AS MUCH AS POSSIBLE, THE AMOUNT OF THE AREA THAT IS DISTURBED AT ONE TIME. 2. THE CONTRACTOR SHALL EXERCISE EVERY REASONABLE PRECAUTION THROUGHOUT THE CONSTRUCTION OF THE PROJECT TO PREVENT EROSION AND SEDIMENTATION. EROSION CONTROL MEASURES SHALL BE INSTALLED AND MAINTAINED IN ACCORDANCE WITH THE PROJECT PLANS, NORTH CAROLINA SEDIMENT AND EROSION CONTROL GUIDELINES AND AS DIRECTED BY THE DESIGNER. 3. IN THE EVENT OF A STORM, THE CONTRACTOR WILL BE RESPONSIBLE FOR REMOVAL OR PROTECTION OF ANY EQUIPMENT, TOOLS, MATERIALS OR OTHER ITEMS NEEDED TO COMPLETE THE WORK THAT COULD BE AFFECTED BY STORMWATER. 4. EACH SEDIMENT CONTROL DEVICE WILL BE REMOVED AFTER ALL WORK IN THE CORRESPONDING CONSTRUCTION PHASE HAS BEEN COMPLETED AND ADEQUATE PERMANENT GROUND COVER HAS BEEN RE-ESTABLISHED ON THE DISTURBED AREAS, AS DETERMINED BY THE DESIGNER. 5. THE CONSTRUCTION ENTRANCES AND STAGING AREAS IDENTIFIED ON THE PLANS PROVIDE THE ONLY ACCESS POINTS INTO THE LIMITS OF DISTURBANCE. NO ADDITIONAL ACCESS POINTS SHALL BE USED WITHOUT APPROVAL OF THE DESIGNER. 6. ALL EXCAVATED MATERIAL SHALL BE STOCKPILED WITHIN THE LIMITS OF DISTURBANCE FOR LATER USE AS FILL MATERIAL. SILT FENCE SHALL BE INSTALLED ON THE LOW SIDE OF ANY TEMPORARY OR PERMANENT SPOIL AND TOPSOIL PILES. THESE SPOIL PILES SHALL ALSO BE SEEDED AND MULCHED FOR VEGETATIVE STABILIZATION WITHIN 7 DAYS THAT THEY ARE CREATED. ALL SPOIL MATERIAL SHALL STAY ON THE SITE AND SHALL NOT BE REMOVED FROM THE SUBJECT PROPERTY WITHOUT DESIGNER APPROVAL. 7. ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CHECKED FOR STABILITY AND FUNCTIONAL OPERATION FOLLOWING EVERY RUNOFF PRODUCING RAIN EVENT AND/OR AT LEAST ONCE PER WEEK. ANY NEEDED MAINTENANCE OR REPAIRS SHALL BE MADE IMMEDIATELY TO MAINTAIN ALL MEASURES AS DESIGNED. ACCUMULATED SEDIMENT SHALL BE REMOVED FROM CONTROL MEASURES WHEN THEY REACH APPROXIMATELY 50% OF THEIR FUNCTIONAL CAPACITY. THESE MEASURES SHALL BE REPAIRED IF DISTURBED DURING MAINTENANCE. ALL SEEDED AREAS SHALL BE FERTILIZED, RESEEDED AND MULCHED, AS NECESSARY, TO PROMOTE THE ESTABLISHMENT OF VEGETATION COVER. 8. THE CONSTRUCTION MANAGER AND EROSION CONTROL CONTACT FOR THIS SITE IS TIM MORRIS. OFFICE PHONE (919) 783-9214 / CELL PHONE (919) 793-6886. 9. ALL EXCESS WASTE MATERIAL SHALL BE DISPOSED OF AT A PERMITTED FACILITY OR SITE. (15A NCAC 04B .0110) SEDIMENTATION &EROSION CONTROL PLAN LEGEND LIMITS OF DISTURBANCE --------------------------------- -LOD SILT FENCE .................................................. SF STRAW WADDLE W TEMPORARY BRIDGE MAT STREAM CROSSING ..... STREAM TO BE FILLED ------------------------------------ STAGING AREA i STOCK PILE O TEMPORARY CHANNEL DIVERSION -------------------- TCD THE CONTRACTOR SHALL UTILIZE THE FOLLOWING SEED/FERTILIZER MIX IN SEEDING ALL DISTURBED AREAS WITHIN THE PROJECT LIMITS: SUMMER MIX (MAY 15 - AUGUST 15) GERMAN MILLET .. _ .. SETARIA ITALICA 20 LBS / ACRE BROWNTOP MILLET UROCHLOA RAMOSA- - - - 20 LBS / ACRE WINTER MIX (AUGUST 15 - MAY 15) RYE GRAIN- - _ - - _ - - _ SECALE CEREALE_ _ _ _120 LBS / ACRE THE CONTRACTOR SHALL UTILIZE THE PERMANENT SEED MIXES INDICATED BELOW. THE UPLAND SEED MIX SHOULD BE USED IN DRYER PARTS OF THE SITE, WHILE THE RIPARIAN SEED MIX SHOULD BE USED LONG THE FLOODPLAIN AND BANKFULL BENCHES AND AS DIRECTED BY THE DESIGNER. PERMANENT UPLAND SEED MIX SUMMER MIX (MAY 15 -- AUGUST 15) APPLICATION RATE (IN MIX) SPECIES % OF MIX LBS/ACRE ORCHARDGRASS -- DACTYLIS GLOMERATA 5 1.5 BLUESTEM -- ANDROPOGON GLOMERATUS 5 1.5 VIRGINIA WILDRYE -- ELYMUS VIRGINICUS 10 3.0 RIVER OATS -- CHASMANTHIUM LATIFOLIUM 5 1.5 DEERTONGUE -- PANICUM CLANDESTINUM 25 7.5 SWITCHGRASS -- PANICUM VIRGATUM 25 7.5 PEARL MILLET-- PENNISETUM GLAUCOMA 25 7.5 TOTALS 100 30 WINTER MIX (AUGUST 15 -- MAY 15) APPLICATION RATE (IN MIX) SPECIES % OF MIX LBS/ACRE v ORCHARDGRASS -- DACTYLIS GLOMERATA 5 1.5 w F g BLUESTEM -- ANDROPOGON GLOMERATUS 5 1.5 �� z z Z) N VIRGINIA WILDRYE -- ELYMUS VIRGINICUS 10 3.0 o w m a RIVER OATS -- CHASMANTHIUM LATIFOLIUM 5 1.5 w ¢ � 0 DEERTONGUE -- DICHANTHELIUM CLANDESTINUM 25 7.5 0 fr SWITCHGRASS -- PANICUM VIRGATUM 25 7.5 w w 0 RYE GRAIN -- SECALE CEREALE 25 7.5 < z . _ TOTALS 100 30 g z of 10 o z- PERMANENT RIPARIAN SEED MIX w J SUMMER MIX (MAY 15 -- AUGUST 15) z LL a APPLICATION RATE (IN MIX) z N SPECIES % OF MIX LBS/ACRE w VIRGINIA WILDRYE -- ELYMUS VIRGINICUS 15 4.6 BIG BLUESTEM -- ANDROPOGON GERARDII 8 2.3 SWITCHGRASS -- PANICUM VIRGATUM 11 3.3 AUTUMN BENTGRASS --AGROSTIS PERENNANS 11 3.3 BLACK-EYED SUSAN -- RUDBECKIA HIRTA 8 2.3 LANCELEAF COREOPSIS -- COREOPSIS LANCEOLATA 8 2.3 SOFT RUSH -- JUNCUS EFFUSUS 4 1.1 LITTLE BLUESTEM -- SCHIZACHYRIUM SCOPARIUM 4 1.1 INDIAN GRASS -- SORGHASTRUM NUTANS 4 1.1 EASTERN GAMMA -- TRIPSACUMDACTYLOIDES 4 1.1 PEARL MILLET-- PENNISETUM GLAUCOMA 25 7.5 0 TOTALS 100 30 Z Q WINTER MIX (AUGUST 15 -- MAY 15) Q APPLICATION RATE (IN MIX) W Z SPECIES % OF MIX LBS/ACRE ` 0 VIRGINIA WILDRYE -- ELYMUS VIRGINICUS 15 4.6 w BIG BLUESTEM -- ANDROPOGON GERARDII 8 2.3 SWITCHGRASS -- PANICUM VIRGATUM 11 3.3 z Z U AUTUMN BENTGRASS --AGROSTIS PERENNANS 11 3.3 BLACK-EYED SUSAN -- RUDBECKIA HIRTA 8 2.3 Q Q m H LANCELEAF COREOPSIS -- COREOPSIS LANCEOLATA 8 2.3 SOFT RUSH -- JUNCUS EFFUSUS 4 1.1 Z Z LITTLE BLUESTEM -- SCHIZACHYRIUM SCOPARIUM 4 1.1 Q 0 INDIAN GRASS -- SORGHASTRUM NUTANS 4 1.1 LLI ~ EASTERN GAMMA--TRIPSACUM DACTYLOIDES 4 1.1 Z RYE GRAIN -- SECALE CEREALE 25 7.5 < TOTALS 100 30 O V J ~ FERTILIZER______________________________________ 750LBS /ACRE J D W V Z LIMESTONE ---------- --------- 2000LBS /ACRE m Q 2 FERTILIZER SHALL BE 10-10-10 ANALYSIS. UPON SOIL ANALYSIS Y J A DIFFERENT RATIO OF FERTILIZER MAY BE USED. 0 Q J SEEDBED PREPARATION co THE SEEDBED SHALL BE COMPRISED OF LOOSE SOIL AND NOT COMPACTED. THIS MAY REQUIRE MECHANICAL LOOSENING OF THE SOIL. SOIL AMENDMENTS SHOULD FOLLOW THE FERTILIZER AND LIMING DESCRIPTION IN THE ABOVE SECTIONS. FOLLOWING SEEDING, MULCHING SHALL FOLLOW THE BELOW APPLICATION METHODS AND AMOUNTS. AREAS CONTAINING SEVERE SOIL COMPACTION WILL BE SCARIFIED TO A DEPTH OF 8 INCHES. NOV 2019 MULCHING E: N.T.S. EROSION SEEDED AREAS ARE TO BE PROTECTED BY SPREADING STRAW MULCH UNIFORMLY TO FORM A CONTINUOUS BLANKET (75 % COVERAGE = 2 TONS/ACRE). CONTROL NOTE: FERTILIZER IS ONLY TO BE APPLIED ONCE. IF TEMPORARY SEED AND FERTILIZER IS PLAN APPLIED PRIOR TO PERMANENT SEED, THEN FERTILIZER SHALL NOT BE APPLIED WITH THE PERMANENTSEED. SHFFT gn OF ?4 GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH THE NCGO1 CONSTRUCTION GENERAL PERMIT Implementing the details and specifications on this plan sheet will result in the construction activity being considered compliant with the Ground Stabilization and Materials Handling sections of the NCGO1 Construction General Permit (Sections E and F, respectively). The permittee shall comply with the Erosion and Sediment Control plan approved by the delegated authority having jurisdiction. All details and specifications shown on this sheet may not apply depending on site conditions and the delegated authority having jurisdiction. SECTION E: GROUND STABILIZATION Required Ground Stabilization Timeframes Stabilize within this Site Area Description many calendar Timeframe variations days after ceasing land disturbance (a) Perimeter dikes, swales, ditches, and 7 None perimeter slopes (b) High Quality Water (HQW) Zones 7 None (c) Slopes steeper than If slopes are 10' or less in length and are 7 not steeper than 2:1, 14 days are 3:1 allowed -7 days for slopes greater than 50' in length and with slopes steeper than 4:1 (d) Slopes 3:1 to 4:1 14 -7 days for perimeter dikes, swales, ditches, perimeter slopes and HQW Zones -10 days for Falls Lake Watershed -7 days for perimeter dikes, swales, (e) Areas with slopes ditches, perimeter slopes and HQW Zones flatter than 4:1 14 -10 days for Falls Lake Watershed unless there is zero slope Note: After the permanent cessation of construction activities, any areas with temporary ground stabilization shall be converted to permanent ground stabilization as soon as practicable but in no case longer than 90 calendar days after the last land disturbing activity. Temporary ground stabilization shall be maintained in a manner to render the surface stable against accelerated erosion until permanent ground stabilization is achieved. GROUND STABILIZATION SPECIFICATION Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the techniques in the table below: Temporary Stabilization Permanent Stabilization • Temporary grass seed covered with straw or • Permanent grass seed covered with straw or other mulches and tackifiers other mulches and tackifiers • Hydroseeding • Geotextile fabrics such as permanent soil • Rolled erosion control products with or reinforcement matting without temporary grass seed • Hydroseeding • Appropriately applied straw or other mulch • Shrubs or other permanent plantings covered • Plastic sheeting with mulch • Uniform and evenly distributed ground cover sufficient to restrain erosion • Structural methods such as concrete, asphalt or retaining walls • Rolled erosion control products with grass seed DUIPMENT AND VEHICLE MAINTENANCE 1. Maintain vehicles and equipment to prevent discharge of fluids. 2. Provide drip pans under any stored equipment. 3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the project. 4. Collect all spent fluids, store in separate containers and properly dispose as hazardous waste (recycle when possible). 5. Remove leaking vehicles and construction equipment from service until the problem has been corrected. 6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products to a recycling or disposal center that handles these materials. TIER, BUILDING MATERIAL AND LAND CLEARING WASTE 1. Never bury or burn waste. Place litter and debris in approved waste containers. 2. Provide a sufficient number and size of waste containers (e.g dumpster, trash receptacle) on site to contain construction and domestic wastes. 3. Locate waste containers at least 50 feet away from storm drain inlets and surface waters unless no other alternatives are reasonably available. 4. Locate waste containers on areas that do not receive substantial amounts of runoff from upland areas and does not drain directly to a storm drain, stream or wetland. 5. Cover waste containers at the end of each workday and before storm events or provide secondary containment. Repair or replace damaged waste containers. 6. Anchor all lightweight items in waste containers during times of high winds. 7. Empty waste containers as needed to prevent overflow. Clean up immediately if containers overflow. 8. Dispose waste off -site at an approved disposal facility. 9. On business days, clean up and dispose of waste in designated waste containers. PAINT AND OTHER LIQUID WASTE 1. Do not dump paint and other liquid waste into storm drains, streams or wetlands. 2. Locate paint washouts at least 50 feet away from storm drain inlets and surface waters unless no other alternatives are reasonably available. 3. Contain liquid wastes in a controlled area. 4. Containment must be labeled, sized and placed appropriately for the needs of site. 5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from construction sites. PORTARLF TOILFTS 1. Install portable toilets on level ground, at least 50 feet away from storm drains, streams or wetlands unless there is no alternative reasonably available. If 50 foot offset is not attainable, provide relocation of portable toilet behind silt fence or place on a gravel pad and surround with sand bags. 2. Provide staking or anchoring of portable toilets during periods of high winds or in high foot traffic areas. 3. Monitor portable toilets for leaking and properly dispose of any leaked material. Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace with properly operating unit. EARTHEN STOCKPILE MANAGEMENT 1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least 50 feet away from storm drain inlets, sediment basins, perimeter sediment controls and surface waters unless it can be shown no other alternatives are reasonably available. 2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of five feet from the toe of stockpile. 3. Provide stable stone access point when feasible. 4. Stabilize stockpile within the tmeframes provided on this sheet and in accordance with the approved plan and any additional requirements. Soil stabilization is defined as vegetative, physical or chemical coverage techniques that will restrain accelerated erosion on disturbed soils for temporary or permanent control needs. ONSITE CONCRETE WASHOUT STRUCTURE WITH LINER A 10- 0 0 0 �T.a°E 00 A �no'ic °[T'�ic[(ta x'24NG'EMin) SECTxnnou ° rzuix ixB gym e aB °- NEE° - S °°nx° °_. BELOW GRADE rWASHOUT STRUCTURE CONCRETE WASHOUTS 1H ry E w�� eeRM 0 0 0 0 'usr`c 0 o nP_; E ° BW 0 0 �- 0 0 B o SECTION B-B B µo�oR CAB ° I M°° , cHcc ABOVE GRADE WASHOUT STRUCTURE 1. Do not discharge concrete or cement slurry from the site. 2. Dispose of, or recycle settled, hardened concrete residue in accordance with local and state solid waste regulations and at an approved facility. 3. Manage washout from mortar mixers in accordance with the above item and in addition place the mixer and associated materials on impervious barrier and within lot perimeter silt fence. 4. Install temporary concrete washouts per local requirements, where applicable. If an alternate method or product is to be used, contact your approval authority for review and approval. If local standard details are not available, use one of the two types of temporary concrete washouts provided on this detail. 5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk sections. Stormwater accumulated within the washout may not be pumped into or discharged to the storm drain system or receiving surface waters. Liquid waste must be pumped out and removed from project. 6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it can be shown that no other alternatives are reasonably available. At a minimum, install protection of storm drain inlet(s) closest to the washout which could receive spills or overflow. 7. Locate washouts in an easily accessible area, on level ground and install a stone entrance pad in front of the washout. Additional controls may be required by the approving authority. 8. Install at least one sign directing concrete trucks to the washout within the project limits. Post signage on the washout itself to identify this location. 9. Remove leavings from the washout when at approximately 75% capacity to limit overflow events. Replace the tarp, sand bags or other temporary structural components when no longer functional. When utilizing alternative or proprietary products, follow manufacturer's instructions. 10. At the completion of the concrete work, remove remaining leavings and dispose of in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance caused by removal of washout. HERBICIDES, PESTICIDES AND RODENTICIDES 1. Store and apply herbicides, pesticides and rodenticides in accordance with label restrictions. 2. Store herbicides, pesticides and rodenticides in their original containers with the label, which lists directions for use, ingredients and first aid steps in case of accidental poisoning. 3. Do not store herbicides, pesticides and rodenticides in areas where flooding is possible or where they may spill or leak into wells, stormwater drains, ground water or surface water. If a spill occurs, clean area immediately. 4. Do not stockpile these materials onsite. HAZARDOUS AND TOXIC WASTE 1. Create designated hazardous waste collection areas on -site. 2. Place hazardous waste containers under cover or in secondary containment. 3. Do not store hazardous chemicals, drums or bagged materials directly on the ground. NCGOI GROUND STABILIZATION AND MATERIALS HANDLING EFFECTIVE: 04/01/19 Z W U U) X Z Lu a d' Z 0 W 0 Z Q J I- LL_ 0 Y Z Z Q Q CO 2i Z Q W CY F- Q U) U J ~ J co Y U Q J m S W� W � r� 5 N 53a Q ? ow LU W U l/1 = WF Waf z0 0Z J c� aw Q Z J O o' Q U 2 o' O Z Z D O U w U Z Q Q J Q EROSION CONTROL PLAN PART III PART III PART III SELF -INSPECTION, RECORDKEEPING AND REPORTING I I SELF -INSPECTION, RECORDKEEPING AND REPORTING I I SELF -INSPECTION, RECORDKEEPING AND REPORTING SECTION A: SELF -INSPECTION Self -inspections are required during normal business hours in accordance with the table below. When adverse weather or site conditions would cause the safety of the inspection personnel to be in jeopardy, the inspection may be delayed until the next business day on which it is safe to perform the inspection. In addition, when a storm event of equal to or greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be performed upon the commencement of the next business day. Any time when inspections were delayed shall be noted in the Inspection Record. Frequency Inspect (during normal Inspection records must include: business hours) (1) Rain gauge Daily Daily rainfall amounts. maintained in If no daily rain gauge observations are made during weekend or good working holiday periods, and no individual -day rainfall information is order available, record the cumulative rain measurement for those un- attended days (and this will determine if a site inspection is needed). Days on which no rainfall occurred shall be recorded as "zero." The permittee may use another rain -monitoring device approved by the Division. (2) E&SC At least once per 1. Identification of the measures inspected, Measures 7 calendar days 2. Date and time of the inspection, and within 24 3. Name of the person performing the inspection, hours of a rain 4. Indication of whether the measures were operating event > 1.0 inch in properly, 24 hours 5. Description of maintenance needs for the measure, 6. Description, evidence, and date of corrective actions taken. (3) Stormwater At least once per 1. Identification of the discharge outfalls inspected, discharge 7 calendar days 2. Date and time of the inspection, outfalls (SDOs) and within 24 3. Name of the person performing the inspection, hours of a rain 4. Evidence of indicators of stormwater pollution such as oil event > 1.0 inch in sheen, floating or suspended solids or discoloration, 24 hours 5. Indication of visible sediment leaving the site, 6. Description, evidence, and date of corrective actions taken. (4) Perimeter of At least once per If visible sedimentation is found outside site limits, then a record site 7 calendar days of the following shall be made: and within 24 1. Actions taken to clean up or stabilize the sediment that has left hours of a rain the site limits, event > 1.0 inch in 2. Description, evidence, and date of corrective actions taken, and 24 hours 3. An explanation as to the actions taken to control future releases. (5) Streams or At least once per If the stream or wetland has increased visible sedimentation or a wetlands onsite 7 calendar days stream has visible increased turbidity from the construction or offsite and within 24 activity, then a record of the following shall be made: (where hours of a rain 1. Description, evidence and date of corrective actions taken, and accessible) event > 1.0 inch in 2. Records of the required reports to the appropriate Division 24 hours Regional Office per Part III, Section C, Item (2)(a) of this permit. (6) Ground After each phase 1. The phase of grading (installation of perimeter E&SC stabilization of grading measures, clearing and grubbing, installation of storm measures drainage facilities, completion of all land -disturbing activity, construction or redevelopment, permanent ground cover). 2. Documentation that the required ground stabilization measures have been provided within the required timeframe or an assurance that they will be provided as soon as possible. NOTE: The rain inspection resets the required 7 calendar day inspection requirement. SECTION B: RECORDKEEPING 1. E&SC Plan Documentation The approved E&SC plan as well as any approved deviation shall be kept on the site. The approved E&SC plan must be kept up-to-date throughout the coverage under this permit. TI following items pertaining to the E&SC plan shall be kept on site and available for inspection at all times during normal business hours. Item to Document Documentation Requirements (a) Each E&SC measure has been installed Initial and date each E&SC measure on a copy and does not significantly deviate from the of the approved E&SC plan or complete, date locations, dimensions and relative elevations and sign an inspection report that lists each shown on the approved E&SC plan. E&SC measure shown on the approved E&SC plan. This documentation is required upon the initial installation of the E&SC measures or if the E&SC measures are modified after initial installation. (b) A phase of grading has been completed. Initial and date a copy of the approved E&SC plan or complete, date and sign an inspection report to indicate completion of the construction phase. (c) Ground cover is located and installed Initial and date a copy of the approved E&SC in accordance with the approved E&SC plan or complete, date and sign an inspection plan. report to indicate compliance with approved ground cover specifications. (d) The maintenance and repair Complete, date and sign an inspection report. requirements for all E&SC measures have been performed. (e) Corrective actions have been taken Initial and date a copy of the approved E&SC to E&SC measures. plan or complete, date and sign an inspection report to indicate the completion of the corrective action. 2. Additional Documentation to be Kept on Site In addition to the E&SC plan documents above, the following items shall be kept on the site and available for inspectors at all times during normal business hours, unless the Division provides a site -specific exemption based on unique site conditions that make this requirement not practical: (a) This General Permit as well as the Certificate of Coverage, after it is received. (b) Records of inspections made during the previous twelve months. The permittee shall record the required observations on the Inspection Record Form provided by the Division or a similar inspection form that includes all the required elements. Use of electronically -available records in lieu of the required paper copies will be allowed if shown to provide equal access and utility as the hard -copy records. 3. Documentation to be Retained for Three Years All data used to complete the a-NOI and all inspection records shall be maintained for a period of three years after project completion and made available upon request. [40 CFR 122.411 SECTION C: REPORTING 1. Occurrences that Must be Reported Permittees shall report the following occurrences: (a) Visible sediment deposition in a stream or wetland. (b) Oil spills if: • They are 25 gallons or more, • They are less than 25 gallons but cannot be cleaned up within 24 hours, • They cause sheen on surface waters (regardless of volume), or • They are within 100 feet of surface waters (regardless of volume). (c) Releases of hazardous substances in excess of reportable quantities under Section 311 of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA (Ref: 40 CFR 302.4) or G.S. 143-215.85. (d) Anticipated bypasses and unanticipated bypasses. (e) Noncompliance with the conditions of this permit that may endanger health or the environment. 2. Reporting Timeframes and Other Requirements After a permittee becomes aware of an occurrence that must be reported, he shall contact the appropriate Division regional office within the timeframes and in accordance with the other requirements listed below. Occurrences outside normal business hours may also be reported to the Department's Environmental Emergency Center personnel at (800) 858-0368. Occurrence Reporting Timeframes (After Discovery) and Other Requirements (a) Visible sediment . Within 24 hours, an oral or electronic notification. deposition in a . Within 7 calendar days, a report that contains a description of the stream or wetland sediment and actions taken to address the cause of the deposition. Division staff may waive the requirement for a written report on a case -by -case basis. • If the stream is named on the NC 303(d) list as impaired for sediment - related causes, the permittee may be required to perform additional monitoring, inspections or apply more stringent practices if staff determine that additional requirements are needed to assure compliance with the federal or state impaired -waters conditions. (b) Oil spills and • Within 24 hours, an oral or electronic notification. The notification release of shall include information about the date, time, nature, volume and hazardous location of the spill or release. substances per Item 1(b)-(c) above (c) Anticipated . A report at least ten days before the date of the bypass, if possible. bypasses [40 CFR The report shall include an evaluation of the anticipated quality and 122.41(m)(3)] effect of the bypass. (d) Unanticipated • Within 24 hours, an oral or electronic notification. bypasses [40 CFR . Within 7 calendar days, a report that includes an evaluation of the 122.41(m)(3)] quality and effect of the bypass. (e) Noncompliance • Within 24 hours, an oral or electronic notification. with the conditions • Within 7 calendar days, a report that contains a description of the of this permit that noncompliance, and its causes; the period of noncompliance, may endanger including exact dates and times, and if the noncompliance has not health or the been corrected, the anticipated time noncompliance is expected to environment[40 continue; and steps taken or planned to reduce, eliminate, and CFR 122.41(I)(7)] prevent reoccurrence of the noncompliance. [40 CFR 122.41(1)(6). • Division staff may waive the requirement for a written report on a case -by -case basis. NCGOI SELF -INSPECTION, RECORDKEEPING AND REPORTING I EFFECTIVE: 04/01/19 1 0 v w� r z Z UN w m w � ¢? 0 �W Lu ¢ =,F Z Z ZM a LLZ 0 Z J (� Lu o LL w v 0 Z Q J Q F- Z_ W O Q Z v Z = Q m ~ IY Z O W � Q Z:) U) U' O U J ~ W J U Z C0 Q 2 Y � Ci Q Q J m EROSION CONTROL PLAN SEQUENCE OF CONSTRUCTION: THE CONTRACTOR IS RESPONSIBLE FOR FOLLOWING THE SEQUENCE OF CONSTRUCTION IN ACCORDANCE WITH THE PLANS AND THE FOLLOWING PROVISIONS, AS DIRECTED BY THE DESIGNER. CONSTRUCTION SHALL PROCEED IN THE SPECIFIED MANNER UNLESS OTHERWISE DIRECTED OR APPROVED OF BY THE DESIGNER. THE FOLLOWING PROVISIONS, ALONG WITH THE INSTRUCTIONS CONTAINED IN THE PLANS, CONSTITUTE THE SEQUENCE OF CONSTRUCTION. GENERAL SITE NOTES: 1. THE CONTRACTOR SHALL ONLY CONDUCT STREAM WORK, INCLUDING ALL IN -STREAM STRUCTURES, GRADING, STABILIZATION MEASURES, AND SEEDING, MULCHING, AND MATTING WORK, ON A SECTION OF STREAM THAT SHALL BE ENTIRELY COMPLETED WITHIN A SINGLE DAY. EACH SECTION OF COMPLETED STREAM MUST BE STABILIZED AND MATTED BEFORE FLOW CAN BE RETURNED INTO THE CHANNEL. 2. WHEN WORKING IN STREAMS WITH NO ACTIVE FLOW THE CONTRACTOR IS REQUIRED TO HAVE APPROPRIATELY SIZED PUMPS AND MATERIALS TO INSTALL AND MAINTAIN A TEMPORARY STREAM DIVERSION IN ANTICIPATION OF PENDING STORM EVENTS. WORKING IN A DRY CHANNEL DOES NOT PRECLUDE THE CONTRACTOR FROM HAVING TO COMPLY WITH NOTE I ABOVE. 3. UPON APPROVAL FROM THE DESIGNER, PHASES 2 THROUGH 8 MAY BE CONSTRUCTED IN A DIFFERENT SEQUENCE THAN INDICATED BELOW OR CONCURRENTLY. 4. ALL CONSTRUCTION WORK SHALL BE DONE DURING PERIODS OF DRY WEATHER. 5. ALL STREAM CROSSINGS WILL BE LOCATED IN AREAS OF THE STREAM WHERE LEFT AND RIGHT BANK HEIGHTS ARE SIMILAR OR CAN BE GRADED TO PROVIDE A LEVEL, OR NEAR LEVEL, CROSSING SURFACE. BRIDGE MATS CAN BE MADE OF WOOD OR STEEL, BUT MUST BE CAPABLE OFSUPPORTING THE GROUND PRESSURE OF THE EQUIPMENT THAT WILL BE UTILIZING THE CROSSING. UPON ENSURING A LEVEL CROSSING SURFACE, THE BRIDGE MATS WILL BE LAID ACROSS THE CHANNEL IN A MANNER THAT DOES NOT DISRUPT STREAM FLOW OR CAUSE EROSION IN THE CHANNEL. THIS IS TYPICALLY ACHIEVED USING AN EXCAVATOR TO LIFT THE MATS ACROSS THE CHANNEL WITH CHAINS AND GUIDED AND SET BY A GROUND CREW. THE MATS MUST BE CONTINUOUS ACROSS THE CHANNEL, WITH NO GAPS THAT COULD ALLOW SEDIMENT TO ENTER THE STREAM. 4" WOODEN BARRIERS WILL BE INSTALLED ON THE OUTER EDGE OF THE MATS TO PREVENT SOIL FROM SPILLING INTO THE CHANNEL DURING CROSSING. ACCUMULATED SEDIMENT ON THE MATS WILL BE REMOVED ON A FREQUENT BASIS TO MINIMIZE DISCHARGE OF SEDIMENT TO THE STREAM DURING USE. AFTER SETTING THE BRIDGE MATS, A CLASS 1 STONE APRON WILL BE APPLIED ON THE ENTRANCE AND EXIT OF THE BRIDGE AS PER THE DETAIL ON SHEET 23 OF THE PLANS. THIS APRON WILL BE MAINTAINED AND REPLACED AS NEEDED TO MINIMIZE SEDIMENT MOBILIZATION TO THE STREAM. PRIOR TO REMOVING THE CROSSINGS, THE MATS SHOULD BE CLEANED OF SEDIMENT. SIMILAR TO INSTALLATION, THE MATS SHOULD BE REMOVED USING AN EXCAVATOR AND CHAINS SO THEY CAN BE LIFTED UP AND OUT OF THE AREA WITHOUT DAMAGING THE STREAM OR ENTERING THE STREAM FLOW. 6. EROSION AND SEDIMENT CONTROL PERMIT MUST BE OBTAINED BEFORE ANY LAND DISTURBING ACTIVITIES OCCUR. A COPY OF THIS PERMIT AND A HARD COPY OF THE PLAN MUST BE KEPT ON SITE, PREFERABLY IN A PERMITS BOX, AND ACCESSIBLE DURING INSPECTION. 7. SELF -INSPECTIONS FOR EROSION AND SEDIMENTATION CONTROL MEASURES ARE TO BE PERFORMED AT LEAST ONCE EVERY SEVEN CALENDAR DAYS AND WITHIN 24 HOURS OF EVERY RAIN EVENT OF GREATER THAN 0.5 INCH. ANY NEEDED REPAIRS SHALL BE MADE IMMEDIATELY TO MAINTAIN MEASURES AS DESIGNED. ALL ESC MEASURES SHALL BE MAINTAINED AS SPECIFIED IN THE CONSTRUCTION DETAILS. 8. AFTER SITE IS STABILIZED, REMOVE ALL TEMPORARY EROSION CONTROL MEASURES AND PROVIDE PERMANENT SEEDING WHERE TEMPORARY MEASURES HAVE BEEN REMOVED AND GROUND COVER IS NOT ADEQUATE. 9. PER NPDES REQUIREMENTS, A RAIN GAUGE, SELF -INSPECTIONS RECORDS, PERMIT, AND S&E PLAN ARE REQUIRED TO BE MAINTAINED ON SITE AND ACCESSIBLE DURING INSPECTION. IT IS RECOMMENDED THAT THESE ITEMS BE PLACED IN A PERMITS BOX AT THE BEGINNING OR ENTRANCE OF PROJECT. 10.CONTACT THE DEMLR REGIONAL OFFICE AT LEAST 48 HOURS PRIOR TO COMMENCING THE LAND DISTURBING ACTIVITY 336-776-9800. PHASE 1 : INITIAL SITE PREPARATION A. IDENTIFY PROJECT BOUNDARY, LIMITS OF DISTURBANCE, SENSITIVE AREAS, STAGING AREAS, STABILIZED ENTRANCES, TEMPORARY CROSSINGS AND ACCESS POINTS WITH THE DESIGNER. B. CONSTRUCT ENTRANCE AND STAGING AREAS AND THEIR ASSOCIATED SEDIMENT AND EROSION CONTROL DEVICES IN A MANNER TO SUPPORT EXECUTION OF THE RESTORATION IN PHASES AS INDICATED IN THE PLANS AND AS DIRECTED BY THE DESIGNER. PHASE 2: STREAM REACH - TRIBUTARY 1 - STA. 10+00 TO 47+51 A. COMPLETE CHANNEL WORK IN ACCORDANCE WITH THE FOLLOWING PROCEDURES: i. ENSURE THAT ALL SEDIMENT AND EROSION CONTROL MEASURES HAVE BEEN INSTALLED ALONG EXISTING AND NEW CHANNEL AND ARE IN WORKING CONDITION. ii. ESTABLISH AN ISOLATED WORK AREA BY INSTALLING IMPERVIOUS DIKES AND TEMPORARY CHANNEL DIVERSION AND DIVERT FLOWS AROUND THE DESIGNATED WORK AREA. (LENGTH OF ISOLATED WORK AREA IS LEFT TO THE DISCRETION OF THE CONTRACTOR). iii. COMPLETE CHANNEL GRADING AS DIRECTED IN THE PLANS. INSTALL ANY BANK STABILIZATION TREATMENTS AND IN -STREAM STRUCTURES. iv. SEED AND MULCH COMPLETED WORK AREAS ALONG COMPETED STREAM BANKS. PHASE 3: STREAM REACH - TRIBUTARY 2 - STA. 200+00 TO 203+17 (PORTION ABOVE POND) A. COMPLETE CHANNEL WORK IN ACCORDANCE WITH THE FOLLOWING PROCEDURES: i. ENSURE THAT ALL SEDIMENT AND EROSION CONTROL MEASURES HAVE BEEN INSTALLED ALONG EXISTING AND NEW CHANNEL AND ARE IN WORKING CONDITION. ii. ESTABLISH AN ISOLATED WORK AREA BY INSTALLING IMPERVIOUS DIKES AND TEMPORARY CHANNEL DIVERSION AND DIVERT FLOWS AROUND THE DESIGNATED WORK AREA. (LENGTH OF ISOLATED WORK AREA IS LEFT TO THE DISCRETION OF THE CONTRACTOR). iii. COMPLETE CHANNEL GRADING AS DIRECTED IN THE PLANS. INSTALL ANY BANK STABILIZATION TREATMENTS AND IN -STREAM STRUCTURES. iv. SEED AND MULCH COMPLETED WORK AREAS ALONG COMPETED STREAM BANKS. PHASE 4: STREAM REACH - TRIBUTARY 2 - STA. 203+17 TO 206+00 (PONDED AREA) A. COMPLETE CHANNEL WORK IN ACCORDANCE WITH THE FOLLOWING PROCEDURES: i. ENSURE THAT ALL SEDIMENT AND EROSION CONTROL MEASURES HAVE BEEN INSTALLED ALONG EXISTING AND NEW CHANNEL AND ARE IN WORKING CONDITION. ii. ESTABLISH AN ISOLATED WORK AREA BY INSTALLING IMPERVIOUS DIKES AND TEMPORARY CHANNEL DIVERSION AND DIVERT FLOWS AROUND THE DESIGNATED WORK AREA. (LENGTH OF ISOLATED WORK AREA IS LEFT TO THE DISCRETION OF THE CONTRACTOR). iii. THE DAM REMOVAL PROCESS WILL REQUIRE THE POND TO BE DEWATERED EARLY IN THE CONSTRUCTION SEQUENCE TO ALLOW ADEQUATE TIME FOR BOTH THE POND AND POND SEDIMENTS TO DEWATER PRIOR TO MASS EXCAVATION. BASED ON A BATHYMETRIC SURVEY CONDUCTED DURING THE ASSESSMENT PHASE OF THE PROJECT, THERE ARE ACCUMULATED SOFT SEDIMENTS THAT HAVE EMBEDDED THE LOWER HALF OF THE EXISTING POND RISER STRUCTURE. iv. INSTALL A PUMP AROUND FROM THE UPPER PORTIONS OF TRIBUTARY 2 (APPROXIMATELY STATION 203+17) TO THE STREAM PORTION JUST BELOW THE POND LEVEE (APPROXIMATELY STATION 207+50) TO MINIMIZE SURFACE WATER INPUTS TO THE POND DURING THE DEWATERING PERIOD. v. DEWATER THE POND USING A COMBINATION OF PUMPS AND/OR SIPHONS THAT WILL CONVEY CLEAR WATER AROUND THE POND DAM TO A STREAM PORTION BELOW THE POND. A STABILIZED ROCK OUTLET WILL BE INSTALLED TO DISSIPATE ENERGY AT THE OUTLET END OF THE PUMP/SIPHON SET UP. vi. ONCE THE CLEAR WATER HAS BEEN DECANTED FROM THE POND, A SUMP WILL BE ESTABLISHED USING A PERFORATED 55 GALLON DRUM ENCASED IN 57 STONE TO CONTINUE TO PUMP FILTERED WATER FROM THE POND SEDIMENTS. THIS WATER WILL BE PUMPED TO A SEDIMENT BAG DISCHARGED BELOW THE DAM, APPROXIMATELY AT STATION 207+50. vii. ONCE THE SEDIMENT IS ADEQUATELY DEWATERED, THE FILL AROUND THE RISER STRUCTURE WILL BE REMOVED TO EXPOSE THE BOTTOM OF THE VERTICAL RISER PIPE. THE PIPE WILL BE CUT OFF AT THE VERTICAL ELBOW TO ALLOW CLEAR WATER TO CONTINUE TO DRAIN FROM THE POND BOTTOM. IT IS LIKELY THAT A DIVERSION CHANNEL WILL NEED TO BE TEMPORARILY EXCAVATED THROUGH THE POND BOTTOM TO ALLOW BASEFLOW TO BYPASS THE POND THROUGH THE CUT RISER PIPE. THE TEMPORARY CHANNEL WILL BE STABILIZED WITH COIR FIBER MATTING AND WILL BE SEEDED AND STABILIZED. THE POND WILL THEN BE ALLOWED TO NATURALLY DEWATER FOR AS LONG AS IT TAKES TO BE ABLE TO ADEQUATELY WORK THE POND SEDIMENT. ALTERNATIVELY TO USING THE EXISTING POND RISER PIPE TO DEWATER THE POND OVER TIME, THE CONTRACTOR MAY ELECT TO BREACH THE DAM AND CREATE A STABLE BYPASS CHANNEL THAT IS LINED WITH COIR FIBER MATTING AND IS SEEDED AND STABILIZED. viii. DAILY INSPECTIONS WILL OCCUR TO ENSURE THAT THE POND OUTLET REMAINS OPEN AND THAT THE CHANNEL THROUGH THE POND TO THE RISER IS STABLE AND IS NOT CONVEYING SEDIMENT DOWNSTREAM. ix. WHEN THE POND IS ADEQUATELY DEWATERED THE POND DAM WILL BE REMOVED AND REGRADED AS PER THE PROJECT PLANS. x. WHEN THE DAM IS REMOVED DOWN TO THE RISER OUTLET ELEVATION, THE RISER STRUCTURE WILL BE REMOVED AND ABANDONED, AND THE STREAM AND FLOODPLAIN WILL BE GRADED TO MATCH THE PLANFORM AND PROFILE SHOWN IN THE PLANS. A PUMP AROUND WILL BE INSTALLED TO ENSURE A DRY WORK AREA WHILE THE DAM IS REMOVED. A. IF APPROVED BY THE ENGINEER, THE EXISTING POND SEDIMENTS WILL BE REUSED TO BUILD THE FLOODPLAIN ALONG WITH THE SEDIMENTS EXCAVATED FROM THE POND DAM. FURNISHED OR SALVAGED TOPSOIL WILL BE USED TO SURFACE TREAT ALL PLANTING AREAS WITHIN THE FLOODPLAIN EXTENTS SHOWN ON THE PLANS. ADEQUATE LIME AND FERTILIZER WILL BE USED TO ENSURE ADEQUATE VEGETATIVE STABILIZATION OF THE FORMER POND AREA. xiii. COMPLETE CHANNEL GRADING AS DIRECTED IN THE PLANS. INSTALL ANY BANK STABILIZATION TREATMENTS AND IN -STREAM STRUCTURES. xiv. SEED AND MULCH COMPLETED WORK AREAS ALONG COMPETED STREAM BANKS. PHASE 5 : STREAM REACH - TRIBUTARY 2 - STA. 206+00 TO 227+42 (PORTION BELOW POND) A. COMPLETE CHANNEL WORK IN ACCORDANCE WITH THE FOLLOWING PROCEDURES: i. ENSURE THAT ALL SEDIMENT AND EROSION CONTROL MEASURES HAVE BEEN INSTALLED ALONG EXISTING AND NEW CHANNEL AND ARE IN WORKING CONDITION. ii. ESTABLISH AN ISOLATED WORK AREA BY INSTALLING IMPERVIOUS DIKES AND TEMPORARY CHANNEL DIVERSION AND DIVERT FLOWS AROUND THE DESIGNATED WORK AREA. (LENGTH OF ISOLATED WORK AREA IS LEFT TO THE DISCRETION OF THE CONTRACTOR). iii. COMPLETE CHANNEL GRADING AS DIRECTED IN THE PLANS. INSTALL ANY BANK STABILIZATION TREATMENTS AND IN -STREAM STRUCTURES. iv. SEED AND MULCH COMPLETED WORK AREAS ALONG COMPETED STREAM BANKS. PHASE 6 : STREAM REACH - TRIBUTARY 3 - STA. 300+00 TO 302+44 A. COMPLETE CHANNEL WORK IN ACCORDANCE WITH THE FOLLOWING PROCEDURES: i. ENSURE THAT ALL SEDIMENT AND EROSION CONTROL MEASURES HAVE BEEN INSTALLED ALONG EXISTING AND NEW CHANNEL AND ARE IN WORKING CONDITION. ii. ESTABLISH AN ISOLATED WORK AREA BY INSTALLING IMPERVIOUS DIKES AND TEMPORARY CHANNEL DIVERSION AND DIVERT FLOWS AROUND THE DESIGNATED WORK AREA. (LENGTH OF ISOLATED WORK AREA IS LEFT TO THE DISCRETION OF THE CONTRACTOR). iii. COMPLETE CHANNEL GRADING AS DIRECTED IN THE PLANS. INSTALL ANY BANK STABILIZATION TREATMENTS AND IN -STREAM STRUCTURES. iv. SEED AND MULCH COMPLETED WORK AREAS ALONG COMPETED STREAM BANKS. PHASE 7 : STREAM REACH - TRIBUTARY 4 - STA. 400+00 TO 402+84 A. COMPLETE CHANNEL WORK IN ACCORDANCE WITH THE FOLLOWING PROCEDURES: i. ENSURE THAT ALL SEDIMENT AND EROSION CONTROL MEASURES HAVE BEEN INSTALLED ALONG EXISTING AND NEW CHANNEL AND ARE IN WORKING CONDITION. ii. ESTABLISH AN ISOLATED WORK AREA BY INSTALLING IMPERVIOUS DIKES AND TEMPORARY CHANNEL DIVERSION AND DIVERT FLOWS AROUND THE DESIGNATED WORK AREA. (LENGTH OF ISOLATED WORK AREA IS LEFT TO THE DISCRETION OF THE CONTRACTOR). iii. COMPLETE CHANNEL GRADING AS DIRECTED IN THE PLANS. INSTALL ANY BANK STABILIZATION TREATMENTS AND IN -STREAM STRUCTURES. iv. SEED AND MULCH COMPLETED WORK AREAS ALONG COMPETED STREAM BANKS. PHASE 8: RIPARIAN BUFFER PLANTING A. PHASE 8 CAN BE INITIATED AFTER THE STREAM WORK IS COMPLETED IN EACH SECTION OF THE PROJECT. B. PLANTS SHALL BE PLANTED DURING THE DORMANT SEASON (NOVEMBER 17 - MARCH 17). C. PREPARE AND PLANT BANK AND RIPARIAN VEGETATION IN ACCORDANCE WITH THE CONSTRUCTION PLANS AND AS DIRECTED BY THE DESIGNER. PHASE 9 : COMPLETION OF PROJECT SITE A. REMOVE ALL REMAINING WASTE MATERIALS AND RESTORE THE REMAINING STAGING AND STOCKPILING AREAS AND CONSTRUCTION ENTRANCES TO THEIR PRIOR CONDITION. REMOVE TEMPORARY CROSSINGS AND INSTALL BANK STABILIZATION TREATMENTS, AND PLANT, SEED AND MULCH DISTURBED AREAS. SEED AND MULCH ALL DISTURBED AREAS UTILIZING THE SEED/MULCH MIXES SPECIFIED IN THE PLANS. F W U m w W 5 a z -U' w 0 Z Q J >W � Y Z Z Q Q m 2i Z Q LLI Q U J ~ J D m Y U Q J 00 0 em Ww r. 5. N Q Q ? ox LUQ W U m= W� Waf zo LL Z J aw LL v EROSION CONTROL PLAN UTILIZE A STABILIZED OUTLET FOR THE DISCHARGE OF CLEAN WATER (SEE DETAIL THIS SHEET). NOTE: DISCHARGE MAY OCCUR IN BEDROCK LOCATIONS OR DEEP POOLS IF BED DISTURBANCE CAN BE ELIMINATED. IISILT BAG WITH ROCK PAD (SEE DETAIL THIS SHEET) I I' DEWATERING IMPERVIOUS DIKE I 1 I PUMP I I� EXISTING I ,.I TEMPORARY I CHANNEL IMPERVIOUS DIKE FLEXIBLE HOSE I I I I ' I 1 CONTRACTOR SHALL UTILIZE I SANDBAGS WITH POLYPROPYLENE OR OTHER IMPERVIOUS FABRIC. I FLOW' INLET FOR CLEAN (SEE DETAIL THIS SHEET) \ WATER TO BE RAISED EARTH MATERIALS SHALL NOT BE OFF OF STREAM USED TO CONSTRUCT THE I ` BOTTOM. THIS MAY IMPERVIOUS DIKES. REQUIRE PLACEMENT I \ OF GRAVEL UNDER INTAKE. \ PUMP -AROUND PUMP SEQUENCE OF DEWATERING OPERATIONS ANY DEVIATION FROM ABOVE DEWATERING PLAN WILL REQUIRE DESIGNER APPROVAL. 1. INSTALL SILT BAGS(S) AND ROCK PAD(S) AND STABILIZED OUTLET. 2. INSTALL UPSTREAM PUMP AND TEMPORARY FLEXIBLE HOSE. 3. PLACE UPSTREAM IMPERVIOUS DIKE AND BEGIN PUMPING OPERATIONS FOR STREAM DIVERSION. 4. PLACE DOWNSTREAM IMPERVIOUS DIKE AND PUMPING APPARATUS, DEWATER ENTRAPPED AREA. 5. PERFORM REPAIR WORK IN ACCORDANCE WITH THE PLANS. 6. EXCAVATE ANY ACCUMULATED SILT AND DEWATER BEFORE REMOVAL OF IMPERVIOUS DIKES. REMOVE IMPERVIOUS DIKES, PUMPS, AND TEMPORARY FLEXIBLE HOSE (DOWNSTREAM IMPERVIOUS DIKES FIRST). 7. REMOVE SILT BAG(S) AND STABILIZE DISTURBED AREA WITH SEED AND MULCH. EXAMPLE OF PUMP -AROUND OPERATION SCALE:NTS STILLING BASIN MAINTENANCE: 1. SEDIMENT BAGS SHALL BE REPLACED AND DISPOSED OF WHEN IT IS THREE-QUARTERS FULL OF SEDIMENT OR WHEN IT IS IMPRACTICAL FOR THE BAG TO FILTER THE SEDIMENT OUT AT A REASONABLE FLOW RATE. 2. ACCUMULATED SEDIMENT SHOULD BE DISPOSED OF IN A DESIGNATED DISPOSAL AREA. 3. SPENT BAGS SHOULD BE DISPOSED OF PROPERLY AND NOT BURIED. 4. GRAVEL PADS SHOULD BE CHECKED DAILY DURING USE TO ENSURE THAT GRAVEL HAS NOT BEEN WASHED AWAY OR BEEN CHOKED BY EXCESSIVE SEDIMENTATION. 5. REPLACE PAD WITH CLEAN GRAVEL, AS NEEDED. NOTE: PROVIDE STABILIZED OUTLET DOWN BANK TO STREAM SPECIAL STILLING BASIN (SILT BAG) WITH ROCK PAD SCALE.NTS FILTER FABRIC WIDTH 2'7 (SEE TABLE BELOW) O O S" DEPTH CLASS B STONE (DIA =5' TO 12") PUMP SIZE OUTLET WIDTH 2 IN. 2FT. 3 IN. 3FT. 4 IN. 4FT. 6 IN. 6FT. STABILIZED OUTLET MAINTENANCE: 1. ROCK OUTLETS SHOULD BE CHECKED DAILY DURING USE TO ENSURE THAT STONE AND FILTER FABRIC HAS NOT BEEN WASHED AWAY. 2. REPLACE PAD WITH CLEAN STONE, AS NEEDED. STABILIZED OUTLET FOR PUMP -AROUND SETUP SCALE:NTS Al1 m O ! `< IMPERVIOUS SHEETING SAND IMPERVIOUS BAGS � SHEETING FLOW SAND BAGS ~— ElEES STREAMSED WRAP SHEETING UNDER DIKE MATERIAL AJ SECTION AA NOT TO SCALE PLAN IMPERVIOUS DIKE DETAIL SCALE:NTS NOTES: DIKE MATERIAL SHALL BE LARGE SANDBAGS. WATERBAGS MAY BE USED UPON APPROVAL OF THE DESIGNER. DIKE MATERIAL MAY NOT BE EARTH OR DIRT DIKE MATERIAL MUST CONFORM TO THE SHAPE OF THE STREAM CHANNEL AND MUST BE HIGH ENOUGH IN THE CHANNEL TO NOT ALLOW FLOW TO OVERTOP THE DIKE. IMPERVIOUS SHEETING SHOULD BE PLASTIC OR RUBBER SHEETING THICK ENOUGH TO NOT BE EASILY PUNCTURED GIVEN THE CONDITIONS OF THE CHANNEL. ROCKS, SANDBAGS, OR OTHER WEIGHTS (NOT DIRT OR EARTH) MAY BE USED TO WEIGH DOWN THE SHEETING TO ENSURE THAT THERE IS PROPER CONTACT BETWEEN THE SHEETING AND THE BANKS AND BED OF THE CHANNEL. 0 z z LLI -J O z 0 z = Q m ~ z O Q 0 r Lu — I- �Q (n U o U J ~ W J U z Q7 Q 2E Y Q U Q Q m EROSION CONTROL PLAN STOCKPILED EARTH K A> �X�y� r/n 'x,X ix<> x> \� Y / L x���i Ki�>'�h��h�xv gP SILT FENCE � BE __—_—.190---__ NOTES TEMPORARY SEEDING MUST BE APPLIED TO STOCKPILES IF NOT RELOCATED WITHIN 7 DAYS. ALL STOCKPILES SHALL BE WITHIN LIMITS OF DISTURBANCE. SILT FENCE SHALL BE INSTALLED DOWN GRADIENT OF ALL STOCK- PILES. STOCKPILE LOCATIONS DEPICTED ON SITE PLANS ARE APPROXIMATE AND ARE SUBJECT TO CHANGE DEPENDING ON THE AREA THAT IS BEING WORKED UPON. EXACT LOCATION AND QUANTITY OF STOCKPILES WILL BE DETERMINED BY DESIGN REPRESENTATIVE IN THE FIELD. TEMPORARY STOCKPILE DETAIL SCALE:NTS 8' MAX. METAL POST 12h GAUGE MIN. (1.331b PER MIDDLE AND VERTICAL WIRES LINEAR FOOT) 10 GAUGE MIN. — TOP AND BOTTOM STRAND WIRE II l 11 FILTER FABRIC FILTER FABRIC COMPACTED FII SILT FENCE MAINTENANCE _I I I_I I I� 8" I 1. INSPECT SEDIMENT FENCES WEEKLY AND AFTER EACH RAINFALL EVENT. EXTENSION OF 2. SHOULD FABRIC TEAR, DECOMPOSE, OR IN FABRIC AND AN V WAY BECOME INEFFECTIVE, REPLACE WARE INTO TRENCH IT IMMEDIATELY, 3. REMOVE SEDIMENT DEPOSITS PROMPTLY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE — NEXT RAIN AND TO REDUCE PRESSURE ON THE FENCE. TAKE CARE TO AVOID UNDERMINING FENCE DURING CLEANOUT. 4. REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED, INSPECTED AND APPROVED. BRING THE DISTURBED AREA TO GRADE AND STABILIZE AS SHOWN IN THE VEGETATION PLAN. SILT FENCE DETAIL SCALE:NTS 12" STRAW WATTLE �Wbkf WOODEN STAKE SOW 3" TRENCH OR 18"x1"x2" BACKFILL UPSTREAM SIDE WITH MULCH C 8 (OVER FILTER FABRIC) NOTES: WATTLES SHALL BE INSTALLED ACCORDING TO THE MANUFACTURERS SPECIFICATIONS. ALL WADDLE JUNCTIONS SHALL BE OVERLAPPED AND STAKED TO ENSURE CONTINUOUS PROTECTION. STAKES SHALL BE INSTALLED ALONG WADDLES AT 5 FEET SPACING. STRAW WATTLE DETAIL NOT TO SCALE NOTES: 1. TURNING RADIUS SUFFICIENT TO ACCOMMODATE LARGE TRUCKS SHALL BE PROVIDED. 2. ENTRANCE(S) SHOULD BE LOCATED TO PROVIDE FOR UTILIZATION BY ALL CONSTRUCTION VEHICLES. 3. MUST BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR DIRECT FLOW OF MUD ONTO STREETS. PERIODIC TOP DRESSING WITH STONE WILL BE NECESSARY. 4. ANY MATERIAL TRACKED ONTO THE ROADWAY MUST BE CLEANED UP IMMEDIATELY. 5. GRAVEL CONSTRUCTION ENTRANCE SHALL BE LOCATED AT ALL POINTS OF INGRESS AND EGRESS UNTIL SITE IS STABILIZED. FREQUENT CHECKS OF THE DEVICE AND TIMELY MAINTENANCE MUST BE PROVIDED. 51At31LIZED CONSTRUCTION ENTRANCE DETAIL SCALE:NTS STREAM CROSSING MAINTENANCE: 1. INSPECT TEMPORARY CROSSING AFTER EACH RAINFALL EVENT FOR Al ACCUMULATION OF DEBRIS, BLOCKAGE, EROSION OF ABUTMENTS AND OVERFLOW AREAS, CHANNEL SCOUR, RIPRAP DISPLACEMENT, OR PIPING ALONG CULVERTS. sFJ _ 2. REMOVE DEBRIS, REPAIR AND REINFORCE DAMAGED AREASIMMEDIATELY - DAMAGE TO THE INSTALLATION.TO PREVENT STREAM FLOW INSTALL 4"x4'­UP' ALONG BOTH SIDES OF BRIDGE MAT EXISTING CHANNEL FILTER FABRIC FOR DRAINAGE J SECTION AA q NOT TO SCALE PLAN 1. BRIDGE LOCATIONS DEPICTED ON SITE PLANS ARE APPROXIMATE AND ARE SUBJECT TO CHANGE DEPENDING ON THE AREA THAT IS BEING WORKED UPON. EXACT LOCATION AND QUANTITY OF STOCK PILES WILL BE DETERMINED BY DESIGN REPRESENTATIVE IN THE FIELD. 2. WIDTH OF EACH MAT IS DEPENDENT ON THE SIZE OF THE EQUIPMENT MEANT TO CROSS IT. 3. APPROACH STABILIZATION, COMPOSED OF CLASS 1 STONE, WILL BE REQUIRED FOR EACH SECTION OF THE BRIDGE. 4. BRIDGE SHALL BE CONSTRUCTED OF A SOLID DECK. TEMPORARY BRIDGE MAT CROSSING BRIDGE MAT (SOLID DECK) INSTALL 4"x4"'LIP' ALONG BOTH SIDES OF BRIDGE MAT CLASS "1" STONE FOR APPROACH STABILIZATION 8^�I �O— o��' o O0 PLAN j 12" I•��.L1 SILT FENCE o . • o o . • o .. o . • o o ?� 4 I `NATURAL GROUND SECTION AA CLASS B STONE SILT FENCE 12 I 457 STONE (DIA,5" TO 12") z O ?. FLOW O OO Op<. SECTION BB NATURAL GROUND SILT FENCE ROCK OUTLET MAINTENANCE: 1. REMOVE SEDIMENT WHEN IT ACCUMULATES TO ONE-HALF THE DESIGN VOLUME. 2. CHECK STRUCTURE AND ABUTMENTS FOR EROSION, PIPING, OR ROCK DISPLACEMENT. REPAIR IMMEDIATELY. 3. REMOVE ROCK OUTLET WHEN CONTRIBUTING DRAINAGE AREA HAS BEEN PERMANENTLY STABILIZED, INSPECTED AND APPROVED. REMOVE ALL WATER AND SEDIMENT PRIOR TO REMOVING SCREEN. DISPOSE OF WASTE MATERIAL IN DESIGNATED DISPOSAL AREA. 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