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HomeMy WebLinkAbout20221617 Ver 2_Eastfield DWR Response Package_December 2023_20231219.A6. GATEWAY" � ENGINEERS A FULL -SERVICE CIVIL ENGINEERING FIRM December 19, 2023 C-46118-0000 Eastfield Associates LLC 101 S. Raiford St, Suite 200 Selma, NC 27576 Attn: Stephanie Goss, Supervisor 401 & Buffer Permitting Branch Sue Homewood, 401 and Buffer Permitting Branch Subject: Request for Additional Information Eastfield Development (DWR 20221617 Ver 2) Dear Ms. Goss: THE GATEWAY ENGINEERS, INC. 100 MCMORRIS ROAD. PITTSBURGH, PA 15205 412-921-4030 PHONE 412-921-9960 FAX www.gatewayengineers.com On behalf of Eastfield Associates LLC, The Gateway Engineers, Inc., is submitting this letter in response to your Request for Additional Information Letter dated December 4, 2023. For ease of review, we have provided the following responses (shown in bold) to the review comments (shown in normal text). 1. The updated development for Block E includes multiple impacts to stream beds for stormwater outlets (Al, A2, El, E2, E3, E4). It appears that further avoidance and minimization can occur by controlling for outlet velocity before discharge into the stream bed. Please explain why the project cannot be constructed in the typical manner and avoid the impacts to the stream bed from stormwater outlets. Response: Due to elevation constraints, the SCM outlets must discharge at the elevation of the stream bed. These elevation constraints also require the oudetpipes to have minimal slope, less than I %. The discharge velocity from the outlets will be minimal and will not cause erosion. The proposed rip rap aprons will provide additional protection. The SCM outlets have been revised to avoid impacting the stream channel. The outlets have also been rotated to discharge in the direction of the channel flow. These outlets are believed to be Deemed Allowable under the Neuse River Basin Riparian Buffer Rules (Rule). 2. Please provide a mitigation acceptance letter or Statement of Availability for the required Neuse River Buffer mitigation. Response: Terracon is currently seeking the required Buffer Mitigation of 36,425 SF of buffer credits from either private mitigation providers and/or the State's in -lieu fee program. SOAs from two private mitigation banks and NCDMS are included. A6. GATEWAY December 19, 2023 ENGINEERS C-46118-0 f3 Page 2 of 3 A FULL -SERVICE CIVIL ENGINEERING FIRM 3. Please provide a detailed buffer restoration plan for review. Please ensure that the plan complies with all the applicable buffer restoration criteria established in 15ANCACV02B.0295(n). Response: Please refer to the Buffer Restoration Plan Drawing included with this response. Also included is a narrative documenting the buffer restoration, monitoring, and success criteria. The restoration and subsequent monitoring and success criteria are based on Guidelines for Riparian Buffer Restoration (NCDENR 2004). 4. In order to document that the road crossing at Stream Impact F does not require buffer mitigation, please provide buffer impact amounts for each impact area separately. Please note that buffer impacts from primary SCMs are "deemed allowable" uses in accordance with 15ANCACO2B.0714(9)(a)(1). Response: The Block E Impact exhibit has been revised to show the separate impact areas. Stream Impact F buffer impacts total 6,257 SF (0.144 ac) and does not exceed the one-third of an acre mitigation threshold and is believed to be Allowable upon Authorization. Stream Impact G consists of proposed perpendicular impacts and existing parallel impacts that resulted from the construction of a portion of West Providence Boulevard The proposed Stream Impact G perpendicular impacts from the road crossing total 6,819 SF (0.156 ac) and does not exceed the one-third of an acre mitigation threshold and is believed to be Allowable upon Authorization. The Stream Impact G parallel impacts consist of 7,700 SF of Zone I impact and 8,883 SF of Zone 2 impact. These parallel impacts are believed to be Allowable with Mitigation upon Authorization. The applicant is proposing to provide compensatory mitigation as follows for these impacts: Zone I Impact. 7,700 SF at a 3:1 ratio — 23,100 SF of buffer mitigation required Zone 2 Impact. 8,883 SF at a 1.5:1 ratio—13,325 SF of buffer mitigation required Total Buffer Mitigation Required: 36,425 SF of buffer credits The proposed plan does not adequately account for all buffer impacts at Stream Impact G. Due to the installation of a culvert, the buffer is impacted along both sides of the stream channel. Please revise the plans to show the loss of buffer along both sides of the stream channel adjacent to the culvert and adjust the impact and mitigation tables accordingly. Response: The site layout and parking stalls have been revised to limit the impacts at Stream Impact G. The areas to the west of the stream will be restored in accordance with the Buffer Restoration Plan. Our response to Item 4 provides details on these impacts associated with Stream Impact G. 6. The Indirect and Cumulative Analysis provided states that "Johnston County's Stormwater Management Ordinance is applicable to Eastfield and future projects", based on the Division's A6. GATEWAY December 19, 2023 18-0000 ENGINEERS C-461e3of3 Page 3 of 3 A FULL -SERVICE CIVIL ENGINEERING FIRM discussion with Johnston County stormwater staff, the ordinance is not applicable to property within the Town of Selma. Please revise the ICI accordingly. Response: Please refer to the revised Qualitative Indirect and Cumulative Impact Analysis. 7. Please provide the following information related to the revised stormwater management plan: a. Please review the revised ponds A2 and E4 design calculations sheet to ensure that the orifice sizing provides the drawdown time within the required 2-5 days. Also, please make sure to update the pond's profile drawings and Supplemental EZ form accordingly. Response: Orifice sizes have been revised to accommodate the required 2-5 day drawdown time. The Pond details on sheets C710 and C711 and the Supplemental EZ form have been revised to reflect these changes. b. Supplemental EZ form, cover page, needs to be sealed, signed, and dated by the designer (PE). Response: The Supplemental EZ Form has been signed, sealed, and dated. c. Please submit an updated O&M agreement (also, signed and notarized). The new O&M should include all 8 ponds in Block A, C, and E. Response: The O&MAgreement has been updated to include all 8 ponds and has been signed and notarized If you have any questions, please do not hesitate to contact me at 412-409-2395 or Jeff Harbour (Terracon) at 919-805-4208. As always, thank you for your assistance and guidance during this process. Sincerely, THE GATEWAY ENGINEERS, INC. Joshua M. Scanlon, P.E. Project Engineer Stream and Buffer Impact Plan is9LSLZON'VAI3S _ ooz Aims aa0' s L' `a 0l� `1N3Wd0�3/�DO 3i:jnINDACly x Sb]]1NIJN]� aoda3avd3ad YF v =" ON VW�3S of ,;'i=E9 X JUdBA31V J l ` a: 3w b 9L AV,b,M _ aaoo3a Noisin3aY� 1N3WdM3n34 4P3131Sd3 U W a a — — �pr U - II W a (� o co v v p z� _ � p W w - �y \ [ /iAr j z �o.o c�i Lu o ao d w o K L 7 p — O iwwww w vE W w ZLLZLL �jA v d p mOmOm �tA s o z z rc N e r �q _ a o � a- n t / i W g J m w Q ¢ d w ¢ C7 O U G p z Q w W w � w F pW pw O C7 W �m�m �z ��� O O ¢ ¢a ¢m O a0 a —¢m ¢ a O U Q w WN We Ww W d o �°��� m N mN m- m- U ¢ J J J LaL m w a OF �a w W � O� a W OD w w w w ww w'w'ww'w' � msmW �ww m�msmg "'www`"w msmsmg mgmgmg m� & U ZJ JZm ww�www"'www`"w Zm JZ ZJ ww ZJ `w oaoaoaoioaoaoioaoaoioaoa p N 00000000o0 n N� �¢N¢�¢N¢M¢ N 2� N� o0 N� opo0-opop-o0op N� N� N� N� N ¢M¢Na ¢ ¢ ¢ ¢ 9L9ZZ ON'SAl3S ooz 3ilns is aaodlva `m - Old `1N3WdO-lDAD4 En:jnlN3Aad - Sbil"NIJNI I aoaa3avd3ad �N VW�3S m is _ 'W bOL AtlMHJIHMAyVE) 1N3Wd013A34 413131Sb'3 0a003alloISIA3a III < K _ J fry / Q U O O } I� Q I W O J In LLB~ LL II O EL Lij O Q W U U W J U CO z� V O U QEIL D o li=> m � � m I I - I I I I o � a O N 0 o 0 + m m W O I I � w o J � J � I LL II O II [L J Lu J Lu J W Q U J LL QU J J Q U co d J 11 F CO Q C 7 z J v0ZU li ¢OU � o a O w eel aof o> o 2 > oee + _ o 0 Riparian Buffer Restoration Plan Wrerracon 2401 Brentwood Rd, Suite 107 Raleigh, NC 27604 P (919)873-2211 Terracon.com Eastfield Riparian Buffer Restoration Plan DWR# 20221617 V2 1.0 PROPOSED RIPARIAN BUFFER RESTORATION The applicant for the Eastfield Development is proposing the following riparian buffer restoration activity as required by NCDWR pursuant to the current permit review process for the project. The area to be restored was previously disturbed by land clearing activities and will be restored to comply with current State regulations. This plan is based on guidance from Guidelines for Riparian Buffer Restoration (NCDENR 2004) and 15a NCAC 02b.0295, which defines the buffer restoration process for permittees. Please refer to the Block E Buffer Restoration Exhibit included with this submittal. Site Preparation - Areas where mechanized equipment operation has created significant berms of topsoil and organic debris, ruts in the ground surface, or where removal of vegetation root systems has created voids in ground surface, will be backfilled and/or blend graded to the surrounding contour. We do not believe that any grading will be required in the restoration area as no fill material was placed in the area when the vegetation was removed. If any instances of a higher -than -normal grade are discovered, these areas will be shaped to match the normal grade to allow for diffuse flow through Zone 1 and Zone 2 of the riparian buffer. Any naturally occurring (pre-existing) depressional areas and drainage feature/patterns within the buffer will remain intact. Planting - A native riparian buffer seed mix will also be applied in the disturbed buffer areas to promote groundcover. Plant species in the native riparian buffer seed mix may include but are not limited to: Virginia wild rye (Elymus virginicus), switchgrass (Panicum virgatum), creeping bentgrass (Agrostis stolonifera), black-eyed susan (Rudbeckia hirta), deer tongue (Panicum clandestinum), big bluestem (Andropogon gerardii), awned barnyard grass (Echinochloa muricata), little bluestem (Schizachyrium scoparium), Indian grass (Sorghastrum nutans), and gamma grass (Tripsacum dactyloides). Disturbed areas within the buffer will be over -planted with a combination of woody tree and shrub species to meet the final performance standard of 260 stems per acre. Our planting plan calls for the installation of native hardwood trees and shrubs to be planted at density of approximately 300 stems per acre to account for natural mortality and the possible effects of wildlife browse. Currently we are proposing that approximately 80% of the plantings consist of bare root seedlings with the remaining 20% consisting of either 1-gallon or 3-gallon containerized woody stems. • The Zone 1 restoration area is 0.85 acres. Approximately 255 woody stems will be planted to provide sufficient woody species to meet the final performance standard. • The Zone 2 restoration area is 0.54 acres. Approximately 165 woody stems will be planted to provide sufficient woody species to meet the final performance standard. Eastfield Riparian Buffer Restoration Plan �erracon DWR# 20221617 V2 This totals approximately 420 stems to be planted in the 1.39-acre buffer restoration area to account for natural mortality such that the area may have 260 stems per acre at maturity and/or when the area is deemed successful. No one species can comprise more than 50% of the total stems. Native tree and shrub volunteer species may be counted towards the final performance standard. The plan requires the use of a minimum of four native tree species and a minimum of two native shrub species. Trees and shrub plantings will be randomly intermixed. Buffer plantings will be marked with color -coded flagging (by species) prior to installation. We are currently proposing a mix of the following species depending on commercial availability at the time of the planting. Please note that the Neuse Buffer Rules allow for a one-time fertilizer application to establish newly planted vegetation. Traps Shrlrhs 1. Green Ash sweet pepperbush 2. River birch Southern wax myrtle I Sourwoad Winged sumac 4. Sycamore common el49rderry 5- Swarnp chestnut oak Gallberry 6- Winged elm American beauty berry 7. Flmv&ring Dogwood 8- Amarloan Holly 9- 3�155KM5 2.0 PROPOSED IMPLEMENTATION SCHEDULE Based on discussions with NCDWR, the applicant agrees to implement the restoration plan as soon as possible after permits are issued authorizing the project. It is understood that the restoration is a vital part of the overall development approval and work to prepare the buffer area for the restoration activities will be initiated as soon as practicable based on weather, seasonality, and plant availability. The restoration area will be clearly marked in the field so that no disturbance can occur from other, adjacent work that may occur. Strict enforcement of the no disturbance zone will be implemented and monitored during the restoration activities and during the work that may occur on the adjacent parcels. The applicant will provide specific details regarding initiation of the restoration to NCDWR once this date and timeline is developed after the issuance of the permit. 3.0 SITE MONITORING & REPORTING Within one year after NCDWR approval of the restoration plan the applicant will provide documentation that the riparian buffer has been restored per this plan. The applicant is proposing that monitoring occur twice per year (spring and fall) for the first two years to identify and correct any potential problems within these first two years. The monitoring will adhere to the requirements in 15a NCAC 02b.0295 and the results will be submitted to NCDWR via a brief report for review and approval. Starting year three, monitoring will be performed once per year (late summer/early fall) for three years or until the applicant and NCDWR agree that the site can be deemed Explore with us 2 Eastfield Riparian Buffer Restoration Plan �erracon DWR# 20221617 V2 successful. Therefore, it is possible that the monitoring could cease after year three with NCDWR's approval. The applicant must demonstrate that a minimum of 361 living and viable stems (including native woody volunteer species) are present the end of three years. If significant mortality occurs during the monitoring period, the applicant will replace those dead stems and report that action to NCDWR. Other qualitative factors will also be considered such as overall species health and diversity, evidence of wildlife utilization, and observations regarding diffuse flow through the buffer areas. Any evidence of invasive or noxious weed recruitment into the restoration area will be noted and reported and remedial actions to address the invasive species will be reported to NCDWR in the report. Photo points in the form of flagged and numbered wooden construction stakes will be installed following the restoration activities. Baseline photos at each photo point will be taken and a photo point map showing the approximate location of each photo point will be prepared. A copy of the photo point map and comparative monitoring photos also be provided with each monitoring report. 4.0 PROTECTION • The applicant will notify future landowners of buffer restrictions and any maintenance requirements. • The restored riparian buffer is to be protected and maintained in perpetuity. • Noxious and/or invasive vegetation, as outlined in the Guidelines, will be managed as follows: In the initial stages of riparian buffer establishment, competition for nutrients by adjacent grasses and forbs will inhibit seedling growth. Release from herbaceous competition has been demonstrated as the most cost-effective method to accelerate the growth of seedlings. The plan for buffer establishment must incorporate control of the herbaceous layer. Options for weed control include four to six inches of well -aged hardwood mulch, weed control fabrics, or pre -emergent herbicide. Typically, mowing to control weeds will be impractical based on the random distribution of plantings. Weed control should be continued for three years from the time of planting (NCDENR 2004). Common invasives include: Ailanthus altissima (Tree -of -Heaven) Albizia julibrissin (Mimosa) Elaeagnus umbellate (Autumn Olive) Hedera helix (English Ivy) Lespedeza cuneata (Korean or Sericea Lespedeza) Ligustrum sinense (Chinese Privet) Lonisera japonica (Japanese Honeysuckle) Microstegium vimineum (Japanese Grass) Paulownia tomentosa (Princess Tree) Pueraria lobata (Kudzu) Rosa multiflora (M ultiflora Rose) Wisteria sinensis (Chinese Wisteria) Explore with us 3 ' L9ZZ ON'SAI3S ooz 3iins i9aNaodiva s 'md a - n Oll `1N3WdOl3/�34 32if113/�a mo Sbil"NIJNI aoa a3avd3ad w< _ Eemw x �N MAUVE) I IV- aaoaaa Noisinaa a ao Ad,�H� H MHUH 1N3WdOl3n34 M3131SV3 o m _ � - V w I11 p 6 - i i v � i rii � r LLJ co w fn / ___—i—__`— a � k R z0 Z z W W W = OI Q tW - - - w a — s a z z Indirect and Cumulative Impact Analysis G AT E �WAY C-46118-0000 On Call. On Time. On Target. November 2023 Revised December 2023 Eastfield Development US Highway 70-A Selma, North Carolina PREPARED FOR Eastfield Associates, LLC. 101 S Raiiford Street, Suite 200 Selma, NC 27576 SUBMITTED BY Ryan M. Enoch, P.E. The Gateway Engineers, Inc. 100 McMorris Road Pittsburgh, PA 15205 412.409.2313 PHONE 412.921.9960 FAX www.gatewavengineers.com renoch(cgatewayengineers.com REVIEWED BY Daniel S. Deiseroth, P.E. v D n D z v TABLE OF CONTENTS PROJECT SUMMARY QUALITATIVE CUMULATIVE IMPACT ANALYSIS CONCLUSION APPENDIX SITE LOCATION MAPS Eastfield Development Cumulative Impact Analysis 1-3 PROJECT SUMMARY Adventure Development is proposing to construct infrastructure for the Eastfield mixed -use development located southeast of the interchange of Interstate 95 and US Highway 70 in Selma, Johnston County, North Carolina. The project consists of road construction consistent with the Town of Selma's transportation plan, utility installation, and site grading for future commercial, residential, and industrial uses. The proposed development goals have been oriented based on input received from the Johnston County Economic Development Commission. The total Eastfield site is approximately 307 acres, of which 212 acres is developable. The project area consists of a mixed hardwood community, agricultural fields, existing utility easements, and existing rural residential and commercial buildings. The project area is owned by the applicant. The project parcels are currently zoned as Industrial, Interstate Business, High Density Residential, or Low Density Residential by the Town of Selma. The purpose of this project is to construct necessary infrastructure for a mixed -use development within a strategic location in Selma, North Carolina to meet the market needs of the community for commercial and industrial facilities. The applicant's goal was to assemble enough land to address the voids in the community, increase the tax base of Selma while minimizing environmental impacts. The proposed work to improve and modernize the US 70 / 70A intersection is based on NCDOT studies indicating that the existing intersection does not meet current traffic needs and safety standards. The project is located within the Neuse River Basin and drains to Bawdy Swamp and unnamed tributaries to Mocassin Creek, a source of Bawdy Creek. A Best Usage Classification (BUC) of QNSW has been assigned to both water bodies. Multiple wetlands associated with Bawdy Swamp and Mocassin Creek were identified onsite that have been determined to be subject to Section 404 jurisdiction. To accomplish the goals of the project approximately 3.03 acres of wetland impacts and 299 linear feet of stream impacts (267 If of loss and 32 If of embedded rip -rap) are proposed to construct the required road improvements and associated infrastructure for the development. Because of these impacts the applicant is submitting an Individual Permit Request for impacts to wetlands and waters of the US (DWR# 20221617 v2 / USACE# SAW-2017-00326) QUALITATIVE CUMULATIVE IMPACT ANALYSIS Per Section III of the NCDEQ 2004 Cumulative Impact Policy, private developments are unlikely to cause cumulative impacts unless they are 1) relatively large, 2) involve commercial development, and 3) occur in otherwise relatively undeveloped landscapes with an impact on regional growth patterns. Based on these characteristics the DWR has determined that a qualitative Cumulative Impact Analysis is required for the Eastfield Development. The following analysis provides considerations of the Qualitative Indirect and Cumulative Impacts to downstream water quality resources from the Eastfield Development. NC DWQ Cumulative Impact Policy, Version 2.1, dated April 10,2004, Question 1a. Is growth likely to be induced by the project? The purpose of this project is to meet the existing market needs of the Selma community, not induce growth. The Eastfield Development is relatively large and includes commercial development. While the existing site parcels are relatively undeveloped, the area is zoned Interstate Business and is located within the 1-95 corridor just two miles from downtown Selma and 30 miles from Raleigh. It is reasonable to expect continual development in this area over time, regardless of Eastfield. Therefore, it is unlikely that the Eastfield Development will impact the current regional growth patterns. NC DWQ Cumulative Impact Policy, Version 2.1, dated April 10,2004, Question 1b. Are existing uses of the water likely to be impacted? The project site drains to Bawdy Swamp and unnamed tributaries to Mocassin Creek, a source of Bawdy Creek. The receiving waters have been classified as Class C Nutrient Sensitive Waters (C;NSW). The project is not located within a watershed classified as Water Supply (WSW), High Quality (HQW), or Outstanding Resource (ORW). The Town of Selma Unified Development Ordinance is applicable to Eastfield, and future projects, and establishes minimum criteria to control and minimize quantitative and qualitative impacts of stormwater runoff from development. The code requires that properties shall retain stormwater discharged from the site so the post development peak discharge rate shall not exceed the rate for the site predevelopment for the 1-inch, 24-hour storm. The anticipated direct impacts to water quality will be mitigated by the construction of Wet Ponds throughout the site to provide stormwater management and protect water quality downstream. The Wet Ponds have been designed in accordance with NCDEQ's Stormwater Design Manual incorporating features such as forebays, vegetative shelves, multi -stage outlet structures, and rip rap outlet protection. Additional water quality protection will be provided through Erosion and Sediment Control measures provided during construction. Water quality impacts will also be minimized by the protection and preservation of the existing riparian buffers to maintain the natural nutrient removal functions. The Neuse River Basin buffer protection rules require a 50-foot buffer measured from top of bank on each side of the stream. NC DWQ Cumulative Impact Policy, Version 2.1, dated April 10,2004, Question 1c. Are additional regulatory measures needed? The site is located within the Neuse River Basin in Johnston County. The Eastfield Development site is located within the Town of Selma and not subject to the Johnston County stormwater requirements. However, the surrounding areas outside of the jurisdictional limits of Selma are held to these standards described below. In December of 1997, the Environmental Management Commission adopted rules to reduce the amount of nitrogen delivered to the Neuse River Basin from point and nonpoint sources by a minimum of 30 percent of the 1995-loading rate. Wastewater treatment plants and industrial plants are considered 2 point source discharges. Point source discharges are regulated under the National Pollution Discharge Elimination System (NPDES) administered through the NC Department of Environment and Natural Resources Division of Water Quality. Non -point source discharges originate from rainfall or snow melt flowing across lawns, streets, parking lots, agricultural fields, forests, industrial sites, construction sites, etc. In May 1998, the Johnston County Board of Commissioners adopted the Johnston County Stormwater Management Ordinance. The intent of the ordinance was to protect streams from the secondary impacts of development. Later in 1998, the Environmental Management Commission adopted the Neuse River Basin — Nutrient Sensitive Waters Management Strategy: Basin -wide Stormwater Requirements (Neuse Rules). In those rules, Johnston County was identified as one of the 15 local governments required to adopt a Stormwater program specifically addressing nitrogen reduction. The EMC approved the revised Johnston County program in December 2000 with an effective date of March 9, 2001. Even though the site is located outside of the Johnston County jurisdictional limits, the Eastfield Development stormwater management plan has been designed in accordance with the Johnston County Stormwater Design Manual, dated January 2008. This manual details the requirements on impervious area limits, hydrology and hydraulic calculations, nitrogen reduction, stormwater BMPs, stream buffers, certifications, inspections, and maintenance. No additional regulatory measures are needed. CONCLUSION The Eastfield Development will support the existing needs of the surrounding community and improve the economic condition of Johnston County. Although cumulative and indirect impacts could result from the project, these impacts would be minimal assuming adherence to the existing state and county stormwater and erosion and sediment control regulations, therefore , cumulative and indirect impacts are not expected to cause a violation of downstream water quality standards in association with the Eastfield Development. All phases of the project's development, from initial planning, to operation and maintenance of completed facilities, will all adhere to the local, State, and federal water quality management standards and goals. The Eastfield project is not anticipated to result in any detrimental impacts to onsite or downstream water quality because of the stringent application of and adherence to all required water quality treatment protocols. APPENDIX A It i C f V 0 :5 w0 _ ' QI } } } O V F- LU QM QM QM QM ~ U) >- YF o - w 0 QI= QI QI QI g Z H Z Z Z Co 0 0 0 9 v 0 u a+ T C � a � a� � � ,� a � 2 TC N — C � O y C N V a � y $, v � L a — � y 2 � 3 m � o � ,� � J �n Z � N M y m 2� E � � � a in 4 �n �� �. `�� � ` + �� i Revised Ponds A2 and E4 Design Calculations and Profiles and Supplemental EZ Forms ��-��I_,-��_�, ,. II„ Ins lS aaoilna s,�o� Cll'1N3WdOl�n34 �2jnlN�]A v c o S2i��NIJN� � an�a3a�d3 a a � A�1BA3 MI W 3 4Nb b)IJOIB 1N3WdOl3/��4 4131J1Sb� aao03aNOISL9a w U � � 5 f U o w � 0 a m U a w U O � f U a w O w 5 U U o w w a c o y `o r J L 'x � - w ^ r w � 5 $ No WIT THU Is+mt ^L ed rc� ¢u ed wgI- w� w�r� r - - eweiniao xsreu,s.a3nwmw ew oc �� ��� o- ....,.a.�aq. ppnu� cuuo w000rv2. n%��=w�+.e{p Ins lS aaoilna ,o� c - 011'1N3WdOlEln34 zi inlN�IA6f S2i��NIJN� an�a3a�d3 a A�1/fA31�1J1 aao03aNOISIAM 3 (INb' V N00I9 1N3WdOIAA10 4IAIJiSVl lo d O U O Oz 5 � U U U wQ oW o� :� �III�III m U v U � t r l o b0000 o i$a U ,ILL= SUPPLEMENT-EZ COVER PAGE FORMS LOADED PROJECT INFORMATION 1 Project Name Eastfield Crossing, Block C 2 Project Area ac 117.7 3 Coastal Wetland Area ac 0 4 Surface Water Area ac 0 5 Is this project High or Low Density? High 6 1 Does this project use an off -site SCM? No COMPLIANCE WITH 02H .1003(4) 7 Width of vegetated setbacks provided feet 50 8 Will the vegetated setback remain vegetated? Yes 9 If BUA is proposed in the setback, does it meet NCAC 02H.1003 4 c-d ? N/A 10 Is streambank stabilization proposed on this project? No NUMBER AND TYPE OF SCMs: 11 Infiltration System 12 Bioretention Cell 13 Wet Pond 8 14 Stormwater Wetland 15 Permeable Pavement 16 Sand Filter 17 Rainwater Harvesting RWH 18 Green Roof 19 Level Spreader -Filter Strip LS-FS 20 Disconnected Impervious Surface DIS 21 Treatment Swale 22 Dry Pond 23 StormFilter 24 Silva Cell Bayfilter Filterra 25 26 FORMS LOADED DESIGNER CERTIFICATION 27 Name and Title: 28 Organization: 29 Street address: 30 City, State, Zip: 31 Phone numbers : 32 Email: Certification Statement: certify, under penalty of law that this Supplement-EZ form and all supporting information were prepared under my direction or supervision; that the information provided in the form is, to the best of my knowledge and belief, true, accurate, and complete; and that the engineering plans, specifications, operation and maintenance agreements and other supporting information are consistent with the information provided here. \\�II1111111���// SEAL = 057382 = ,A GINS .• G�. �qN M . ENO Signature of Designer 12-12-2023 Date DRAINAGE AREAS 1 Is this a high density project? Yes 2 If so, number of drainage areas/SCMs 8 3 Does this project have low density areas? No 4 If so, number of low density drainage areas 0 5 Is all/part of this project subject to previous rule versions? No FORMS LOADED DRAINAGE AREA INFORMATION Entire Site 1 2 3 4 4 Type of SCM Wet Pond Al Wet Pond A2 Wet Pond C1 Wet Pond C2 5 Total drainage area (sq ft 4229863 1063051 272250 1698840 836352 6 Onsite drainage area (sq ft 3933607 1063051 272250 1406355 832581 7 Offsite drainage area (sq ft 296256 292485 3771 8 Total BUA in project (sq ft 3465264.025 823865 sf 210994 sf 978264 sf 1173630 sf 9 New BUA on subdivided lots (subject to permitting) (sq ft 399010 399010 sf 10permitting) New BUA not on subdivided lots (subject to s 3066254.025 823865 sf 210994 sf 978264 sf 774620 sf 11 Offsite BUA (sq ft 12 Breakdown of new BUA not on subdivided lots: - Parking (sq ft 1646086 sf 637831 sf 163350 sf 341876 sf 287407 sf -Sidewalk (sft 169467.1 106305 sf 27225 sf -Roof (s ft 459459.55 53153 sf 13613 sf 374726 sf - Roadway s ft - Future (sq ft - Other, please specify in the comment box below (sq ft 317653.775 26576 sf 6806 sf 261662 sf 13625 sf 473588 sf 13 New infiltrating permeable pavement on Isubdivided lots (sq ft 14 New infiltrating permeable pavement not on subdivided lots (sq ft 15permitting) Existing BUA that will remain (not subject to s ft 16 Existing BUA that is already permitted (sq ft 17 Existing BUA that will be removed (sq ft 18 Percent BUA 82% 78% 78% 58% 140% 19 Design storm inches 1 in 1 in 1 in 1 in 1 in 20 Design volume of SCM cu ft 304243 cf 61910 cf 21443 cf 132873 cf 63865 cf 21 Calculation method for design volume Simple Method Simple Method Simple Method Simple Method Simple Method ADDITIONAL INFORMATION 22 Please use this space to provide any additional information about the drainage area(s): DRAINAGE AREAS 1 Is this a high density project? Yes 2 If so, number of drainage areas/SCMs 8 3 Does this project have low density areas? No 4 If so, number of low density drainage areas 0 5 Is all/part of this project subject to previous rule versions? No FORMS LOADED DRAINAGE AREA INFORMATION Entire Site 5 6 7 8 4 Type of SCM Wet Pond E1 Wet Pond E2 Wet Pond E3 Wet Pond E4 5 Total drainage area (sq ft 4229863 100188 39204 98010 121968 6 Onsite drainage area (sq ft 3933607 100188 39204 98010 121968 7 Offsite drainage area (sq ft 296256 8 Total BUA in project (sq ft 3465264.025 77646 sf 30383 sf 75958 sf 94525 sf 9 New BUA on subdivided lots (subject to permitting) (sq ft 399010 10permitting) New BUA not on subdivided lots (subject to s 3066254.025 77646 sf 30383 sf 75958 sf 94525 sf 11 Offsite BUA (sq ft 12 Breakdown of new BUA not on subdivided lots: - Parking (sq ft 1646086 sf 60113 sf 23522 sf 58806 sf 73181 sf -Sidewalk (sft 169467.1 10019 sf 3920 sf 9801 sf 12197 sf -Roof (s ft 459459.55 5009 sf 1960 sf 4901 sf 6098 sf - Roadway s ft - Future (sq ft - Other, please specify in the comment box below (sq ft 317653.775 2505 sf 980 sf 2450 sf 3049 sf 13 New infiltrating permeable pavement on Isubdivided lots (sq ft 14 New infiltrating permeable pavement not on subdivided lots (sq ft 15permitting) Existing BUA that will remain (not subject to s ft 16 Existing BUA that is already permitted (sq ft 17 Existing BUA that will be removed (sq ft 18 Percent BUA 82% 78% 78% 78% 78% 19 Design storm inches 1 in 1 in 1 in 1 in 1 in 20 Design volume of SCM cu ft 304243 cf 5753 cf 2372 cf 7897 cf 8130 cf 21 Calculation method for design volume Simple Method Simple Method Simple Method Simple Method Simple Method ADDITIONAL INFORMATION 22 Please use this space to provide any additional information about the drainage area(s): WET POND 1 Draina a area number Al A2 C1 C2 E1 21 Minimum required treatment volume cu ft 61910 cf 21443 cf 121750 cf 59939 cf 5753 cf GENERAL MDC FROM 02H .1050 3 Is the SCM sized to treat the SW from all surfaces at build -out? Yes Yes Yes Yes Yes 4 Is the SCM located away from contaminated soils? Yes Yes Yes Yes Yes 5 What are the side slopes of the SCM H:V ? 3:1 3:1 3:1 3:1 3:1 6 Does the SCM have retaining walls, gabion walls or other engineered side slopes? No No No No No 7 Are the inlets, outlets, and receiving stream protected from erosion 10- ear storm)? Yes Yes Yes Yes Yes 8 Is there an overflow or bypass for inflow volume in excess of the desi n volume? Yes Yes Yes Yes Yes 9 What is the method for dewatering the SCM for maintenance? Pump (preferred) Pump (preferred) Pump (preferred) Pump (preferred) Pump (preferred) 10 If applicable, will the SCM be cleaned out after construction? Yes Yes Yes Yes Yes 11 Does the maintenance access comply with General MDC (8)? Yes Yes Yes Yes Yes 12 Does the drainage easement comply with General MDC (9)? Yes Yes Yes Yes Yes 13 If the SCM is on a single family lot, does (will?) the plat comply with General MDC 10 ? Is there an O&M Agreement that complies with General MDC (11)? N/A N/A N/A N/A N/A 14 Yes Yes Yes Yes Yes 15 Is there an O&M Plan that complies with General MDC (12)? Yes Yes Yes Yes Yes 161 Does the SCM follow the device specific MDC? Yes Yes Yes Yes Yes 17 Was the SCM desi ned b an NC licensed rofessional? Yes Yes Yes Yes Yes WFT POND MDC FROM 02H .1053 18 Sizing method used HRT HRT HRT HRT HRT 19 Has a stage/storage table been provided in the calculations? Yes Yes Yes Yes Yes 20 Elevation of the excavated main pool depth (bottom of sediment removal) (fmsl 163.50 164.50 161.00 162.00 1635.00 21 Elevation of the main pool bottom (top of sediment removal) (fmsl) 164.00 165.00 161.50 162.50 164.00 221 Elevation of the bottom of the vegetated shelf (fmsl) 167.00 169.50 165.00 165.50 167.00 23 Elevation of the permanent pool (fmsl) 167.50 169.65 164.50 1166.75 167.25 24 Elevation of the top of the vegetated shelf (fmsl) 168.00 170.50 166.00 166.50 168.00 25 Elevation of the temporary pool (fmsl) 168.05 171.00 165.50 168.00 168.00 26 Surface area of the main permanent pool (square feet) 89694 13905 129349 48195 6391 27 Volume of the main permanent pool (cubic feet) 289052 cf 42377 cf 363619 cf 148003 cf 13884 cf 28 Average depth of the main pool (feet) 3.00 ft 4.00 ft 2.81 ft 3.07 ft 2.17 ft 29 Average depth equation used Equation 2 Equation 2 Equation 2 Equation 2 Equation 2 30 If using equation 3, main pool perimeter (feet) 31 If using equation 3, width of submerged veg. shelf (feet) 32 Volume of the forebay (cubic feet) 43358 cf 6357 cf 82981 cf 162314 cf 2083 cf 33 Is this 15-20% of the volume in the main pool? Yes Yes Yes Yes Yes 34 Clean -out depth for forebay (inches) 6 in 6 in 6 in 6 in 6 in 35 Design volume of SCM (cu ft) 61910 cf 21443 cf 132873 cf 63865 cf 5753 cf 361 Is the outlet an orifice or a weir? Orifice Orifice Orifice Orifice Orifice 37 If orifice, orifice diameter (inches) 4 in 2 in 4 in 3 in 1 in 38 If weir, weir height (inches) 39 If weir, weir length (inches) Drawdown time for the temporary pool (days) Are the inlet(s) and outlet located in a manner that avoids short- circuiting? 40 2.2 2.05 3.35 2.74 2.87 41 Yes Yes Yes Yes Yes 42 Are berms or baffles provided to improve the flow path? No No No No No 43 Depth of forebay at entrance (inches) 42 in 48 in 48 in 42 in 42 in 44 Depth of forebay at exit (inches) 42 in 48 in 48 in 42 in 42 in 45 Does water flow out of the forebay in a non -erosive manner? Yes Yes Yes Yes Yes 46 Width of the vegetated shelf (feet) 6 ft 6 ft 6 ft 6 ft 6 ft 47 Slope of vegetated shelf (H:V) 6:1 6:1 6:1 6:1 6:1 48 Does the orifice drawdown from below the top surface of the permanentpool? Yes Yes Yes Yes Yes 49 Does the pond minimize impacts to the receiving channel from the 1- r, 24-hr storm? Yes Yes Yes Yes Yes 50 Are fountains proposed? (If Y, please provide documentation that MDC 9 is met. No No No No No 51 Is a trash rack or other device provided to protect the outlet system? Yes Yes Yes Yes Yes 52 Are the dam and embankment planted in non -clumping turf grass? Yes Yes Yes Yes Yes 53 Species of turf that will be used on the dam and embankment Clean Crop Seed Clean Crop Seed Clean Crop Seed Clean Crop Seed Clean Crop Seed 54 Hasa planting plan been provided for the vegetated shelf? Yes Yes Yes Yes Yes Wet Pond 4 2:37 PM 12/11/2023 WET POND 1 Draina a area number E2 E3 E4 21 Minimum required treatment volume cu ft 2372 cf 7897 cf 8130 cf GENERAL MDC FROM 02H .1050 3 Is the SCM sized to treat the SW from all surfaces at build -out? Yes Yes Yes 4 Is the SCM located away from contaminated soils? Yes Yes Yes 5 What are the side slopes of the SCM H:V ? 3:1 3:1 3:1 6 Does the SCM have retaining walls, gabion walls or other engineered side slopes? No No No 7 Are the inlets, outlets, and receiving stream protected from erosion 10- ear storm)? Yes Yes Yes 8 Is there an overflow or bypass for inflow volume in excess of the desi n volume? Yes Yes Yes 9 What is the method for dewatering the SCM for maintenance? Pump (preferred) Pump (preferred) Pump (preferred) 10 If applicable, will the SCM be cleaned out after construction? Yes Yes Yes 11 Does the maintenance access comply with General MDC (8)? Yes Yes Yes 12 Does the drainage easement comply with General MDC (9)? Yes Yes Yes 13 If the SCM is on a single family lot, does (will?) the plat comply with General MDC 10 ? Is there an O&M Agreement that complies with General MDC (11)? N/A N/A N/A 14 Yes Yes Yes 15 Is there an O&M Plan that complies with General MDC (12)? Yes Yes Yes 161 Does the SCM follow the device specific MDC? Yes Yes Yes 17 Was the SCM desi ned b an NC licensed rofessional? Yes Yes Yes WFT POND MDC FROM 02H .1053 18 Sizing method used HRT HRT HRT 19 Has a stage/storage table been provided in the calculations? Yes Yes Yes 20 Elevation of the excavated main pool depth (bottom of sediment removal) (fmsl 162.50 163.50 163.50 21 Elevation of the main pool bottom (top of sediment removal) (fmsl) 163.00 164.00 164.00 221 Elevation of the bottom of the vegetated shelf (fmsl) 167.00 167.00 167.00 23 Elevation of the permanent pool (fmsl) 167.50 167.50 167.25 24 Elevation of the top of the vegetated shelf (fmsl) 168.00 168.00 168.00 25 Elevation of the temporary pool (fmsl) 168.10 169.00 168.00 26 Surface area of the main permanent pool (square feet) 3253 7313 10093 27 Volume of the main permanent pool (cubic feet) 5813 cf 14928 cf 19915 cf 28 Average depth of the main pool (feet) 1.79 ft 2.04 ft 1.97 ft 29 Average depth equation used Equation 2 Equation 2 Equation 2 30 If using equation 3, main pool perimeter (feet) 31 If using equation 3, width of submerged veg. shelf (feet) 32 Volume of the forebay (cubic feet) 872 cf 2239 cf 2987 cf 33 Is this 15-20% of the volume in the main pool? Yes Yes Yes 34 Clean -out depth for forebay (inches) 6 in 6 in 6 in 35 Design volume of SCM (cu ft) 2372 cf 7897 cf 8130 cf 361 Is the outlet an orifice or a weir? Orifice Orifice Orifice 37 If orifice, orifice diameter (inches) 0.75 in 1 in 1.25 in 38 If weir, weir height (inches) 39 If weir, weir length (inches) Drawdown time for the temporary pool (days) Are the inlet(s) and outlet located in a manner that avoids short- circuiting? 40 2.31 2.2 2.32 41 Yes Yes Yes 42 Are berms or baffles provided to improve the flow path? No No No 43 Depth of forebay at entrance (inches) 54 in 42 in 42 in 44 Depth of forebay at exit (inches) 54 in 42 in 42 in 45 Does water flow out of the forebay in a non -erosive manner? Yes Yes Yes 46 Width of the vegetated shelf (feet) 6 ft 6 ft 6 ft 47 Slope of vegetated shelf (H:V) 6:1 6:1 6:1 48 Does the orifice drawdown from below the top surface of the permanentpool? Yes Yes Yes 49 Does the pond minimize impacts to the receiving channel from the 1- r, 24-hr storm? Yes Yes Yes 50 Are fountains proposed? (If Y, please provide documentation that MDC 9 is met. No No No 51 Is a trash rack or other device provided to protect the outlet system? Yes Yes Yes 52 Are the dam and embankment planted in non -clumping turf grass? Yes Yes Yes 53 Species of turf that will be used on the dam and embankment Clean Crop Seed Clean Crop Seed Clean Crop Seed 54 Hasa planting plan been provided for the vegetated shelf? Yes Yes Yes Wet Pond 5 2:37 PM 12/11/2023 Wet Pond Design Worksheets m d 7-2 b N 5 m w e $ y m V 6 m n 11 n II an O �S ch ❑�4 y m V Y'" � p a C n E p� 3 m c m o� QE N N' 3 Sm°mr w9 m,-mm3 U Q o it 1 3 lt,e E N � 4 Ul U1 `� — C C O Z. rn � p 0 � O O v + ' u O Y U1 w O U O Q v > w CC p j m m O > a .O m ti r' N E v 0 0 II w l m E � � O i m C E. E � m V Cm=�V --LEE x r * ununn n 03 F- c e>SFCc) II 3 m � a a v 0 0 > N a` C! Cr v 9 LL to 1 C t0 n N to N i O N o 1 o m o 6 o i � 'o r 1 m a` o v o ,o IIw LL o cr i+ O O 'O _ o � ❑ O N $� o v v u - II - O Cr 0 oo N rn E O H { � � |} ! ] < § ( § „ ... ) , r =TJ® §\ (\\ ±zz a1a \�} \ 2 // 00 00 \ [! '}g _ )&&) 6 0 \\\ \\\ ■ / ( 4 § \�} { � � ] |} < ! § ( § „ ... ) , r =T&® §\ (\\ ±zz \ 2 // \ [! '}g _ )&&) 6 00 \\\ /\/ ■ / ( 4 § a1a \�} { � � |} ! ] < § ( § „ ... ) , r �=G2 §\ (\\ ±zz \ 2 // 00 \ [! '}g _ )&&) 6 00 \\\ /\/ / ( 4 % § a1a \�} { � � |} ! ] < § ( § „ ... ) , r Tƒ(2 §\ (\\ ±zz \ \ [! '}g _ )&&) 6 00 \\\ /\/ ■ / ( 4 § a1a \�} { � � ] |} < ! § ( § „ ... ) , r =T3® §\ (\\ ±zz \ 2 // \ [! '}g _ )&&) 6 00 \\\ /\/ ■ / ( 4 Block A-E Executed O&M Agreement Operation & Maintenance Agreement Project Name: Eastfield Crossing, Blocks A-E Project Location: Selma, NC Cover Page Maintenance records shall be kept on the following SCM(s). This maintenance record shall be kept in a log in a known set location. Any deficient SCM elements noted in the inspection will be corrected, repaired, or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the pollutant removal efficiency of the SCM(s). The SCM(s) on this project include (check all that apply & corresponding O&M sheets will i Infiltration Basin Quantity: Infiltration Trench Quantity: Bioretention Cell Quantity: Wet Pond Quantity: Stormwater Wetland Quantity: Permeable Pavement Quantity: Sand Filter Quantity: Rainwater Harvesting Quantity: Green Roof Quantity: Level Spreader - Filter Strip Quantity: Proprietary System Quantity: Treatment Swale Quantity: Dry Pond Quantity: Disconnected Impervious Surface Present: User Defined SCM Present: Low Density Present: Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s)! Location(s): Location(s): Location(s): Type: 8 No No I No ie aaaea I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for each SCM above, and attached O&M tables. I agree to notify NCDEQ of any problems with the system or prior to any changes to the system or responsible party. Responsible Party: Title & Organization: Street address: City, state, zip: Phone number(s): . Email: MAZOOMM��MA l MUM V17JEWM sam _ 7. Date: Notary Public for the State of County of F do hereby certify that _ personally appeared before me this day of acknowledge the due execution of the pera ' ns an ain nance Agreement. Witness '1984 official seal, G ip-TAR Y PUB00 2 O 3 ON Gpvaaa -7 Seal My commission expires 1 STORM-EZ 12/12/2023 Version 1.5 O&M Agreement Page 1 of 5 Wet Pond Maintenance Requirements Important operation and maintenance procedures: Immediately after the wet detention basin is established, the plants on the vegetated shelf and - perimeter of the basin should be watered twice weekly if needed, until the plants become established (commonly six weeks). _ No portion of the wet pond should be fertilized after the initial fertilization that is required to establish the plants on the vegetated shelf. _ Stable groundcover will be maintained in the drainage area to reduce the sediment load to the wet pond. if the pond must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain will be minimized as much as possible. At least once annually, a dam safety expert will inspect the embankment. Any problems that are found will be repaired immediately. The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. After the wet pond is established, it will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance shall be kept in a known set location and shall be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. SCM element: Potential problem: How to remediate the problem: The entire wet pond Trash/debris is present. Remove the trash/debris. The perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to remove the gully, plant ground erosive gullies have cover and water until it is established. Provide lime and a one - pond formed. time fertilizer application. The inlet pipe is clogged Unclog the pipe. Dispose of the sediment off -site. (if applicable). The inlet pipe is cracked or otherwise damaged (if Repair or replace the pipe. The inlet device applicable). Erosion is occurring in the Regrade the swale if necessary and provide erosion control devices such as reinforced turf matting or riprap to avoid future swale (if applicable). problems with erosion. Sediment has accumulated to a depth Search for the source of the sediment and remedy the problem greater than the original if possible. Remove the sediment and dispose of it in a design depth for sediment location where it will not cause impacts to streams or the SCM. storage. The forebay Provide additional erasion protection such as reinforced turf Erosion has occurred. matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. Wet Pond Maintenance Reauirements (Continued) SCM element: Potential problem: How to remediate the problem: Sediment has accumulated to a depth Search for the source of the sediment and remedy the problem greater than the original if possible. Remove the sediment and dispose of it in a design sediment storage location where it will not cause impacts to streams or the SCM. depth. Algal growth covers over Consult a professional to remove and control the algal growth. The main treatment area 50% of the area. Cattails, phragmites or Remove the plants by wiping them with pesticide (do not other invasive plants cover spray). 50% of the basin surface. Best professional practices show that pruning is needed to Prune according to best professional practices. maintain optimal plant health. Determine the source of the problem: soils, hydrology, The vegetated shelf Plants are dead, diseased disease, etc. Remedy the problem and replace plants. Provide or dying. a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessary. Remove the weeds, preferably by hand. If pesticide is used, Weeds are present. wipe it on the plants rather than spraying. Shrubs have started to Remove shrubs immediately. grow on the embankment. Evidence of muskrat or Consult a professional to remove muskrats or beavers and beaver activity is present. repair any holes or erosion. A tree has started to grow Consult a dam safety specialist to remove the tree. The embankment on the embankment. An annual inspection by an appropriate professional shows that Make all needed repairs immediately. the embankment needs repair. Clean out the outlet device and dispose of any sediment in a Clogging has occurred. 99 g location where it will not cause impacts to streams or the SCM. The outlet device The outlet device is Repair or replace the outlet device. damaged. Weeds or volunteer trees Remove the weeds or trees. are growing on the mat. a Floating wetland island The anchor cable is (if applicable) damaged, disconnected or Restore the anchor cable to its design state. missing. Wet Detention Pond Design Summary Wet Pond Diggram WET POND ID FOREBAY MAIN POND C1 Permanent Pool El. 164.5 Permanent Pool El. 164.5 Temporary Pool El: 165.5 Temporary Pool El: 165.5 Pretreatment other No Clean Out Depth: 3 Clean Out Depth: 3 than forebay? Sediment Removal E 161.5 Sediment Removal E 161.5 Has Veg. Filter? No Bottom Elevation: 161 Bottom Elevation: 161 WET POND ID FOREBAY MAIN POND C2 Permanent Pool El. 166.75 Permanent Pool El. 166.75 Temporary Pool EL 168 Temporary Pool El: 168 Pretreatment other Clean Out Depth: 4.25 Clean Out Depth: 4.25 than forebay? NO Sediment Removal E 162.5 Sediment Removal E 162.5 Has Veg. Filter? Bottom Elevation: 162 Bottom Elevation: 162 WET POND ID FOREBAY MAIN POND Al Permanent Pool El. 167.5 Permanent Pool El. 167.5 Temporary Pool El: 169 Temporary Pool El: 169 Pretreatment other Clean Out Depth: 3.5 Clean Out Depth: 3.5 than forebay? N0 Sediment Removal E 164 Sediment Removal E 164 Has Veg. Filter? Bottom Elevation: 163.5 Bottom Elevation: 163.5 WET POND ID FOREBAY MAIN POND A2 Permanent Pool El. 169.65 Permanent Pool El. 169.65 Temporary Pool El: 171 Temporary Pool El: 171 Pretreatment other Clean Out Depth: 4.65 Clean Out Depth: 4.65 than forebay? N0 Sediment Removal E 165 Sediment Removal E 165 Has Veg. Filter? Bottom Elevation: 164.5 Bottom Elevation: 164.5 WET POND ID FOREBAY MAIN POND E1 Permanent Pool El. 167.25 Permanent Pool El. 167.25 Temporary Pool El: 168 Temporary Pool El: 168 Pretreatment other Clean Out Depth: 3.25 Clean Out Depth: 3.25 than forebay? ND Sediment Removal E 164 Sediment Removal E 164 Has Veg. Filter? Bottom Elevation: 163.5 Bottom Elevation: 163.5 WET POND ID FOREBAY MAIN POND E2 Permanent Pool El. 167.5 Permanent Pool El. 167.5 Temporary Pool El: 168.1 Temporary Pool El: 168.1 Pretreatment other Clean Out Depth: 4.5 Clean Out Depth: 4.5 No than forebay? Sediment Removal E 163 Sediment Removal E 163 Has Veg. Filter? Bottom Elevation: 162.5 Bottom Elevation: 162.5 WET POND ID FOREBAY MAIN POND E3 Permanent Pool El. 167.5 Permanent Pool El. 167.5 Temporary Pool El: 169 Temporary Pool El: 169 Pretreatment other Clean Out Depth: 3.5 Clean Out Depth: 3.5 No than forebay? Sediment Removal E 164 Sediment Removal E 164 Has Veg, Filter? Bottom Elevation: 163.5 Bottom Elevation: 163.5 WEr POND ID FOREBAY MAIN POND E4 Permanent Pool El. 167.2 Permanent Pool El. 167.2 Temporary Pool El: 168 Temporary Pool El: 168 Pretreatment other Clean Out Depth: 3.2 Clean Out Depth: 3.2 No than forebay? Sediment Removal E 164 Sediment Removal E 164 Has Veg. Filter? Bottom Elevation: 163.5 Bottom Elevation: 163.5 ATTACH ADDITIONAL SHLLT5 IF NLUL55AKY Mitigation SOA Letters fires Statement of Availability - Neuse 03020201 (Outside Falls) EBX-Neuse I, LLC and Environmental Banc and Exchange (EBX) Riparian Buffer Mitigation Banks December 19, 2023 Eastfield Associates, LLC 101 S. Raiford Street Selma, NC RE: Availability of Riparian Buffer Credits for the Eastfield Development Project Bank MBI/LIMBI Name: EBX-Neuse I, LLC Neuse Riparian Buffer Umbrella Mitigation Bank, RES Neuse Buffer and Nutrient Offset Umbrella Mitigation Bank, RES Poplar Creek Buffer & Nutrient Offset Umbrella Mitigation Bank, EBX Upper Neuse Riparian Buffer Umbrella Mitigation Bank, RES 2021 Neuse Umbrella Mitigation Bank, and RES 2022 Phase II Umbrella Mitigation Bank. Bank Site: See Table Below Bank Sponsor: EBX-Neuse I, LLC and Environmental Banc & Exchange, LLC Bank Site DWR Project #: See Table Below Riparian Buffer Credits Needed: 36,4253.00 SF Riparian Buffer Credits Available: 2,981.30 SF Bank's Credit Service Area: Neuse River Basin 03020201 (Outside Falls) To Whom It May Concern: EBX-Neuse I, LLC and Environmental Banc & Exchange, LLC has the above -mentioned Riparian Buffer Credits from one or more of the mitigation bank parcels listed below to satisfy the anticipated buffer mitigation requirements related to the above -mentioned project. The project is located within the service area HUC 03020201 where these Banks are allowed to provide riparian buffer credits for buffer mitigation requirements. BANK PARCEL BANK SPONSOR DWR PROJECT # Bucher EBX-Neuse I, LLC 2016-0977v2 Selma Mil EBX-Neuse I, LLC 2014-0705v2 Hannah Bride EBX-Neuse I, LLC 2017-0537v2 Meadow Spring EBX-Neuse I, LLC 2016-0980v2 Polecat EBX-Neuse I, LLC 2016-0978v2 Stone Creek EBX-Neuse I, LLC 2016-0241v2 Poplar Creek EBX-Neuse I, LLC 2016-0979v2 Uzzle EBX-Neuse I, LLC 2016-0981v2 Shady Grove Environmental Banc & Exchange, LLC 2020-1091v2 Wolf King Environmental Banc & Exchange, LLC 2020-1149v2 Thunder Swamp II Environmental Banc & Exchange, LLC 2021-0306v2 Caraway Bluff II Environmental Banc & Exchange, LLC 2014-0820v6 This letter is simply a statement of availability of credits as of the date written. We have the inventory as shown above; however, this letter is not a guarantee of availability as credits will be sold on a first come, first served basis. An invoice for It ZOS WILDLANDS ENGINEERING Neuse 01(Falls and Non -Falls Lake Watershed) Riparian Buffer Credits Statement of Availability December 18, 2023 Eastfield Associates, LLC Attn: Kevin Dougherty 101 S. Raiford Street Selma, NC 27576 RE: Availability of Riparian Buffer Credits for the "Eastfield Development" project Permittee: Eastfield Associates, LLC Riparian Buffer Credits Needed: 36,425 sq. ft. Riparian Buffer Credits Available: 7,709.50 sq. ft. Neuse River Basin (03020201) — Non -Falls and Falls Lake Watershed BANK NAME BANK SPONSOR DWR PROJECT NUMBER Anderson Farm Mitigation Bank Parcel Wildlands Holdings III, LLC 2021-0023v3 Black Dirt Mitigation Bank Parcel Wildlands Holdings III, LLC 2021-0206v2 Cox Pond Mitigation Bank Parcel Wildlands Holdings III, LLC 2020-1942v2 Falling Creek Mitigation Bank Parcel Wildlands Holdings III, LLC 2015-0572v2 Grantham Branch Mitigation Bank Parcel Wildlands Holdings III, LLC 2017-0687v2 Little River Weaver Mitigation Bank Parcel Wildlands Holdings III, LLC 2020-1941v2 Long Pond Mitigation Bank Parcel Wildlands Holdings III, LLC 2019-1639v2 Moccasin Creek Mitigation Bank Parcel Wildlands Holdings III, LLC 2019-0239v2 O'Berry Road Mitigation Bank Parcel Wildlands Holdings III, LLC 2021-0019v2 Rosewood Mitigation Bank Parcel Wildlands Holdings III, LLC 2020-1940v2 Sassarixa Swamp II Mitigation Bank Parcel Wildlands Holdings III, LLC 2019-0661 Thoroughfare Swamp Mitigation Bank Parcel Wildlands Holdings III, LLC 2019-0044v2 Catfish Pond II Mitigation Bank Parcel Wildlands Holdings V, LLC 2018-0196v2 Perry Hill II Mitigation Bank Parcel Wildlands Holdings V, LLC 2019-0157v3 Wolfe Mitigation Bank Wildlands Holdings V, LLC 2018-0580 Loop Road Mitigation Bank Parcel Wildlands Holdings IX, LLC 2020-1938v2 Dear Mr. Dougherty, Wildlands Holdings III, LLC, Wildlands Holdings V, LLC, and Wildlands Holdings IX, LLC, owned and operated by Wildlands Engineering, Inc., currently have sufficient riparian buffer credits from the above -mentioned banks to partially satisfy the riparian buffer mitigation requirements related to your project. The project is located within the service area (HUC 03020201), of the Banks. This letter is simply a statement of availability of credits as of the date written. It is neither a guarantee of future credit availability, nor a guarantee of credit pricing. Credits are sold on a first come, first serve basis at the Bank's price at the time an invoice is requested. Invoices reserve both the credits and the price for a period Wildlands Holdings III, V, and IX, LLC • Wildlands Engineering, Inc • 1430 South Mint Street, Suite 104, Charlotte, NC 28203 W10.* WILDLANDS E N G I N E E R I N G of 30 days. Final transfer of the credits will be made upon receipt of a copy of the 401 Water Quality Certification and Authorization Certificate from the NC Department of Environmental Quality -Division of Water Resources approving the Riparian Buffer mitigation purchase from the Bank and upon receipt of your payment to Wildlands Holdings III, V, or IX LLC (depending on availability at the time of permit issuance). We will then issue a credit transfer certificate verifying your credit purchase to the North Carolina Division of Water Resources and to you for your records. We appreciate the opportunity to assist you with your mitigation requirements. Please contact me at (704) 332- 7754 x114 or cbrunick@wildlandseng.com if you have any questions or need any additional information. Sincerely, Camden M. Brunick Wildlands Engineering, Inc. Mitigation Credit Sales cbrunick@wildlandseng.com 0: (704) 332-7754 ext. 114 M: (919) 219-6162 Cc: Ms. Katie Merritt, Nutrient Offset & Buffer Banking Coordinator I NC Division of Water Resources Ms. Sue Homewood, Regulatory Agent I NC Division of Water Resources Wildlands Holdings III, V, and IX, LLC • Wildlands Engineering, Inc • 1430 South Mint Street, Suite 104, Charlotte, NC 28203 ROY COOPER Governor ELIZABETH S. BISER Secretary MARC RECKTENWALD Director Kevin Dougherty Eastfield Associates, LLC 101 S. Raiford St Selma, NC 27576 Project: Eastfield NORTH CAROLINA Environmental Quality December 19, 2023 Expiration of Acceptance: 6/19/2024 County: Johnston The purpose of this letter is to notify you that the NCDEQ Division of Mitigation Services (DMS) is willing to accept payment for compensatory mitigation for impacts associated with the above referenced project as indicated in the table below. Please note that this decision does not assure that participation in the DMS in - lieu fee mitigation program will be approved by the permit issuing agencies as mitigation for project impacts. It is the responsibility of the applicant to contact permitting agencies to determine if payment to the DMS will be approved. You must also comply with all other state, federal or local government permits, regulations or authorizations associated with the proposed activity including G.S. § 143-214.11. This acceptance is valid for six months from the date of this letter and is not transferable. If we have not received a copy of the applicable 404 Permit/401 Certification/Buffer Approval within this time frame, this acceptance will expire. It is the applicant's responsibility to send copies of the permits to DMS. Once DMS receives a copy of the permit(s) an invoice will be issued based on the required mitigation in that permit and payment must be made prior to conducting the authorized work. The amount of the in -lieu fee to be paid by an applicant is calculated based upon the Fee Schedule and policies listed on the DMS website. Based on the information supplied by you in your request to use the DMS, the impacts for which you are requesting compensatory mitigation credit are summarized in the following table. The amount of mitigation required and assigned to DMS for this impact is determined by permitting agencies, bank credit availability and may exceed the impact amounts shown below. River Basin Impact Location 8-di it HUC Impact Type Impact Quantity Neuse 03020201 Riparian Wetland 3.56 Neuse 03020201 Warm Stream 267 Neuse 03020201 Riparian Buffer Up to 7,700 @ 3:1 Neuse 03020201 Riparian Buffer Up to 8,883 @ 1.5:1 Upon receipt of payment, DMS will take responsibility for providing the compensatory mitigation. The mitigation will be performed in accordance with the In -Lieu Fee Program instrument dated July 28, 2010 and 15A NCAC 02B .0295 as applicable. Thank you for your interest in the DMS in -lieu fee mitigation program. If you have any questions or need additional information, please contact Kelly.Williams@deq.nc.gov. Sincerely, Kelly B. Williams In -Lieu Fee Program Coordinator cc: Jeff Harbour, agent North Carolina Department of Environmental Quality I Division of Mitigation Services 217 West Jones Street 1 1652 Mail Service Center I Raleigh, North Carolina 27699-1652 h(h�TH :.AROI iRA IV o �nmmmenni w�a 919,707,8976 fires this transaction will be sent upon your request, and we will formally reserve both the credits and per -credit pricing for a period of 30 days from the date of invoice. Credits and pricing may be reserved for an extended period by signing a reservation agreement and paying a 10% deposit. Final transfer of the credits will be made upon receipt of a copy of the 401 Water Quality Certification and/or Buffer Authorization Certificate from the NC Department of Environmental Quality -Division of Water Resources approving the Riparian Buffer mitigation purchase from the Bank and upon receipt of your payment. We will then issue a mitigation credit transfer certificate verifying your buffer credit purchase to the North Carolina Division of Water Resources and to you for your records. We appreciate the opportunity to assist you with your buffer mitigation requirements. Please contact me at 919-209-1055, astaley@res.us or nccreditsales@res.us if you have any questions or need further information. Sincerely A7 Amy Staley Credit Sales Manager CC: Katie Merritt, Nutrient Offset & Buffer Banking Coordinator, NCDEQ Division of Water Resources Sue Homewood, NCDEQ Division of Water Resources Jeff Harbour, Terracon 2