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HomeMy WebLinkAbout20151256 Ver 4_NCWR Comment Response_2021041269 SPANGLER ENVIRONMENTAL, INC. Environmental Planning Environmental Permitting Environmental Consulting Environmental Construction Management Expert Testimony 12 April 2021 Rick Trone 401 & Buffer Permitting Branch NCDEQ — Division of Water Resources 512 N. Salisbury St., Suite 942-F Raleigh, NC 27604 RE: Response to Request for Additional Information: Eastgate 540 Individual Permit Amendment DWR # 20151256 Ver 4 Mr. Trone: Below and attached please find our response to the comments and questions you provided on 30 March 2021 re: the above -referenced IP amendment application. As you will see, both a written alternatives analysis and summary of findings, as well as the appropriate site plans, have been updated to document the proposed improvements. Also, attached please find Statements of Availability, which document the availability of both the type and amount necessary to mitigation credits to offset the project's unavoidable impacts to waters of the United States, as well as a copy of the response to USACE comments/questions, which was provided to Samantha Dailey and Jean Gibby. Should you have questions, or require additional information, please call. Sincerely, Spangler Environmental, Inc. Ward Marotti Director — Land and Water Resources cc: Sherrie Chaffin Samantha Dailey (USACE) 4338 Bland Road Raleigh, N.C. 27609 phone 919-875-4288 fax 919-875-4287 TOLL FREE 1-866-SPANGLER www.spanglerenvironmental.com Response to Request for Additional Information: DWR # 20151256 Ver 4 Note: comments/questions provided by Samantha Dailey (USACE) on 22 March 2021 are provided below, verbatim, in plain text. Commenting entities are indicated in bold and • Responses are provided in bullets, directly below each comment. Comment 1: Please provide more details regarding avoidance and minimization of wetland and stream impacts for this project. Please explain why alternative site locations were not explored for the proposed commercial development. Uplands/cleared land south of the proposed project location appear to be under similar ownership. A review of available mapping resources seems to indicate this area would result in fewer impacts to aquatic resources. [15A NCAC 02H .0506(b)(1)]. Eastgate 540: Building 7 Alternatives' Impacts Alternative Building sq.ft. Parking Spaces Dock Spaces Trailer Spaces Limits of Disturbance (ac) Impervious Surface (ac) Permanent Wetland (ac) Stream (If) Impacts Buffer (Z1) sq.ft. Buffer (Z2) sq.ft. 1 (Selected) 204,220 177 54 0 16.6 10.1 0.96 21 3,067 3,905 2 204,220 163 54 0 16.9 9.5 0.96 254 16,233 12,705 3 280,000 80 67 48 20.9 13.3 0.96 415 27,371 18,981 4 280,000 132 70 48 21.1 13.2 1.16 611 37,521 24,446 • As shown in the attached plans, four alternatives were considered, including Alternative 1, the selected alternative, which results in the fewest WOTUS impacts, specifically: o As summarized in the above table, Alternative 4 includes a 280,000 square foot building (700'x400'), 132 parking spaces, 70 dock spaces and 48 trailer spaces. It would require a total construction area of 21.1 acres and total impervious surface of 13.2 acres. It would result in 611 linear feet of permanent stream impacts, 1.16 acres of permanent wetland impacts and 61,967 square feet of permanent Neuse Buffer impacts (37,521 Zone 1 and 24,446 Zone 2). This building's size and layout provide an ideal building size on a 20 acre site to serve multiple tenants in a cross dock configuration. This alternative has the maximum WOTUS and Neuse Buffer impacts of any considered and it was the originally desired. While providing the typical/optimal size, parking and dock spaces to serve multiple tenants with a wide variety of needs, this alternative was removed from consideration in order to reduce WOTUS and Neuse Buffer impacts to the maximum extent practicable. o As summarized in the above table, Alternative 3 includes a 280,000 square foot building (700'x400'), 80 parking spaces, 67 dock spaces and 48 trailer spaces. It would require a total construction area of 20.9 acres and a total impervious area of 13.3 acres. It would result in 415 linear feet of permanent stream 69 SPANGLER ENVIRONMENTAL, INC. impacts, 0.96 acre of permanent wetland impacts and 46,352 square feet of permanent Neuse Buffer impacts (27,371 Zone 1 and 18,981 Zone 2). This building's size and layout are what is typically constructed for this type of facility, which is designed to serve multiple tenants. While the addition of a retaining wall along its southern boundary increases construction costs, it also reduces stream and Neuse Buffer impacts, relative to Alternative 4. While providing the optimal size to serve multiple tenants, this alternative was removed from consideration in order to further reduce WOTUS and Neuse Buffer impacts. o As summarized in the above table, Alternative 2 includes a 204,220 square foot building (850'x240'), 163 parking spaces, 54 dock spaces and 0 trailer spaces. It would require a total construction area of 16.9 acres and 9.5 acres of impervious surface. It would result in 254 linear feet of permanent stream impacts, 0.96 acre of permanent wetland impacts and 28,938 square feet of permanent Neuse Buffer impacts (16,233 Zone 1 and 12,705 Zone 2). In order to reduce WOTUS impacts the building's size was reduced to the minimum required to serve multiple tenants, the needs of whom are anticipated to change over time. Similarly, the site layout was adjusted to provide the diverse needs of multiple tenants, which are anticipated to change over time, while simultaneously minimizing WOTUS impacts. This alternative would result in 161 fewer stream impacts and 17,414 fewer Neuse Buffer impacts than Alternative 3 and 357 fewer stream impacts and 33,029 fewer Neuse Buffer impact than Alternative 4. This alternative reduces the building size by 75,780 square feet (27%), compared to Alternatives 3 and 4, but still provides the ease of access and wide turning radii typical of this type of facility. In order to reduce WOTUS and Neuse Buffer impacts to the maximum extent practicable, this alternative was eliminated from consideration. o As summarized in the above table, Alternative 1 (selected alternative) includes a 204,220 square foot building (700'x400'), 177 parking spaces, 54 dock spaces and 0 trailer spaces. It would require a total construction area of 16.6 acres and 10.1 acres of impervious surface. It would result in 21 linear feet of permanent stream impacts, 0.96 acre of permanent wetland impacts, 6,972 square feet of permanent Neuse Buffer impacts (3,067 Zone 1 and 3,905 Zone 2). Like Alternative 2, in order to reduce WOTUS impacts the building's size was reduced to the minimum required to serve multiple tenants and meet market demands, the needs of whom are anticipated to change over time. In addition, the site's configuration was modified, relative to Alternative 2 to further reduce WOTUS and Neuse Buffer impacts to the maximum extent practicable. As with Alternative 2, the site layout was adjusted to provide the diverse needs of multiple tenants, which are anticipated to change over time. Unlike Alternative 2, however, turning radii and ease of access were adjusted to the minimum required for the site to function as designed. In addition to these design adjustments, a retaining wall was added to further reduce WOTUS impacts to the maximum extent practicable. As a result of these design modifications, Alternative 1 would result in 233 fewer stream impacts than Alternative 2 and 21,966 fewer Neuse Buffer impacts than Alternative 2, 394 fewer stream impacts and SPANGLER ENVIRONMENTAL, INC. 39,380 fewer Neuse Buffer impacts than Alternative 3 and 590 fewer stream impacts and 54,995 fewer Neuse Buffer impact than Alternative 4. This alternative reduces the building size by 75,780 square feet (27%), compared to Alternatives 3 and 4, but still provides the ease of access and minimum turning radii necessary for this type of facility. Because Alternative 1 reduces WOTUS and Neuse Buffer impacts to the maximum extent practicable, while still providing the minimum size, access and versatility to accommodate multiple tenants, whose needs are likely to change over time, Alternative 1 was determined to be the Selected Alternative. • The Uplands/cleared land south of the proposed project location referenced above are part of the existing, previously permitted facilities, which are currently under construction. Once construction is complete in the coming months, the areas referenced above will be completely built out and directly connect to the proposed improvements (i.e. there is no available property in the areas referenced above). As indicated in the above alternatives analysis, the connection to the existing facilities and associated infrastructure is the primary driver for siting of the proposed improvements. Comment 2: The proposed structure and parking area impact the wetland that make up the headwaters of the intermittent tributary on site. Please demonstrate how they hydrologic function of the downstream portion of the tributary and its adjacent wetlands will be maintained, with special consideration for the portion of the tributary that is above the stormwater basin outlet. [15A NCAC 02H .0506(b)(3)] and [15A NCAC 02B .0201] • As documented in the attached Geotechnical Report, groundwater was encountered in numerous places throughout the proposed impact area. As shown in samples B-12 and B-13, which are near the area where wetland/stream fill will terminate, the substrates are composed of relatively coarse materials, which will allow the documented groundwater at other impacted locations to percolate below and around the fill and "daylight" in and/or near the unimpacted stream channel. This conveyance of groundwater through the existing substrates below and adjacent to the impacted areas will allow the existing intermittent stream to maintain its seasonal hydrology and associated ecological functions. In addition to the coarse substrates that will continue to seasonally convey sub -surface flows into the exiting intermittent channel, the following portions of the attached Geotechnical Report are particularly relevant: Seasonal High Water Table (SHWT) Observations: SHWT observations were performed by Scott Mitchel with Mitchell Environmental, PA. Based on the investigation conducted by Mitchell Environmental, the SHWT due to perched conditions was observed in Boring B-16 between 3 and 5 feet below grade. The SHWT was not observed in Boring B-17. The report by Mitchell Environmental, included in Appendix D of this report, provides details of the SHWT investigation along with a discussion of the results. The Mitchell Environmental report should be reviewed and considered in its entirety. Groundwater Observations: Groundwater measurements were attempted at the completion of each boring. Groundwater was measured in 15 of the borings upon completion at depths ranging from 2 to 69 SPANGLER ENVIRONMENTAL, INC. 17.5 feet below the existing ground surface, with typical depths ranging from 11 to 16 feet. Fluctuations in groundwater levels will occur with normal climatic and seasonal variations. • Hydrologic and ecological function of the downstream portion of the tributary and its adjacent wetland will be maintained by the discharge of three constructed wet ponds. These ponds will provide a constant flow and limit stream bank erosion during larger storm events. Pond #4 will discharge upload of the wetland. The constant flow is greater than the standard 1-inch storm event. Town of Knightdale requires stormwater control measures to capture, control and treat the difference in stormwater runoff volume leaving the project site between the pre -and post -development conditions for, at a minimum, the 1-year, 24hour storm. Runoff volume drawdown time shall be between 24 and 120 hours. Comment 3: If the U.S. Army Corps of Engineers requests a response to any comments received as a result of the Public Notice, please provide the Division with a copy of your response to the USACE [15A NCAC 02H .0502(c)]. • The response to USACE Public Notice comments is attached. Comment 4: Buffer mitigation is required for proposed buffer impacts. You have indicated this mitigation requirement will be satisfied by the purchase of credits from a private mitigation bank. Please provide a Statement of Availability from a mitigation bank [15A NCAC 02H .0714] and [15A NCAC 02H .0295 (i)]. • Please see attached Statement of Availability of mitigation credits. 4s9 SPANGLER ENVIRONMENTAL, INC. I-87/US 64E EXPRESSWAY (R/W VARIES) GENERAL NOTES LEGEND TOWN OF KNIGHTDALE WATER ALLOCATION POLICY 0:\19-0001-988NC\DWG\Production Drawings\EXHIBIT\Lot 7 Impact Exhibits \0001-988ex1a.dwg MARGARITA MISLAN 5101 FAISON RIDGE LN DB/PG 17544/2377 ZONING: GR3 PIN: 1743-34-2545 USE: SINGLE FAMILY \ / ELIZABETH WILSON 500 ELLEN DR DB/PG 16818/79 ZONING: GR3 PIN: 1743- 3369 USE: SI LE F MILYLY / RALPH & ANITA BLACK 503 ELLEN DR DB/PG 2780/710 ZONING: GR3 PIN: 1743-34-3183 USE: SINGLE FAMILY \ \ \ \ \ \ N42'16'26"W 47.74' \ LUIS LOPEZ-GABRIEL & MARIA GUTIERREZ-BARRERA 311 ELLEN DR DB/PG 12567/1998 ZONING: GR3 PIN: 1743-34-4020 USE: SINGLE FAMILY / / / / / / / / / • • JUDY M. HICKS JILL RYAN JOYNER 310 ELLEN DRIVE DB/PG 15088/2609 ZONING: GR3 PIN: 1743-33-426 USE: SIN�L'B FAMILY \ CS \� PARKING CALCULATIONS USE TYPE: STORAGE — WAREHOUSE, INDOOR STORAGE MAXIMUM NO. OF PARKING SPACES: 0.7 PER KSF GFA MINIMUM NO. OF PARKING SPACES: 0.5 X MAXIMUM **KSF = 1,000 SF; GFA = GROSS FLOOR AREA \ \ \ \ • • • • \ NOTE: THE PROVIDED SPACES EXCEED THE MAXIMUM NUMBER OF SPACES. FUTURE LANDSCAPE PLANS WILL SHOW THE EXCEEDING SPACES ARE NO MORE THAN 30 FEET FROM THE BASE OF A LARGE SHADE TREE PER UDO SECTION 10.3E(2)a. PROPOSED POND IS A WET POND AND PROVIDES A 30% REDUCTION IN TOTAL NITROGEN PER UDO SECTION 10.3E(2)b(iii). • • BILLY S. MYRICK 312 ELLEN DRIVE DB/PG 15662/1097 ZONING: GR3 PIN: 1743-33-5891 USE: SINGLE FAMILY LOT NO. LOT AREA (AC) BUILDING NO. GFA GFA (SF)INCREASE MAX. SPACES MIN. SPACES.WITH MAX. SPACES 15% AUTO SPACES PROVIDED TRUCK SPACES PROVIDED TOTAL SPACES PROVIDED 7 20.234 7 204,220 143 72 165 152 0 152 24" CURB & GUTTER 24" CURB & GUTTER RETAINING WALL WITH FENCE EX. R W ER YARD 50' SHOD OVERLAY 50' BUILDING SETBACK 1. 2. 3. 4. 5. 6. START OF INTERMITTENT STCW PERMANENT STREAM IMPACTTSMS LENGTH = 23 LF i FUTURE BUILDING #4 10—FT FROM BOTTOM OF WALL FOR ACCESS STREAM TOP OF BANK CENTERLINE OF STREAM THE APPROVED 404 USACE INDIVIDUAL PERMIT (SAW-2014-02127) SHALL BE REVISED TO INCLUDE IMPACTS TO BUFFERS, STREAMS, AND WETLANDS FOR THIS PROJECT. PROJECT SHALL BE COMPLIANT WITH SECTIONS 8.5-8.11 OF THE UDO. OUTDOOR STORAGE IS NOT PERMITTED. A TIA OR UPDATED TIA WILL BE REQUIRED. THE UAA WILL NEED TO BE UPDATED. PARKING LOT REQUIRED TO HAVE CURB AND GUTTER PER UDO 10.4B. TYPE "D" BUFFER YARD TYPICAL PLANTING EVERY 100' ZONE 2 PERMANENT BUFFER IMPACTS AREA = 3,905 SF ZONE 1 PERMANENT BUFFER IMPACTS AREA = 3,067 SF ZONE 1 TEMPORARY BUFFER IMPACTS AREA 930 SF DUMPSTER TEMPORARY STREAM IMPACTS LENGTH = 21 LF HODGE ROAD FUTURE PHASES LLC 0 SPECTRUM DRIVE DB/PG 17419/3837 ZONING: MI PIN: 1743-33-6268 USE: VACANT KFUTURE POND #3 0 • Iron Pipe Found Calculated Point Railroad Spike Electric Power Pole Fire Hydrant Surface Flow Arrow x— Ex. Fence Line Ex. Property Line Property Line Proposed Storm Sewer Ex. Wetlands Loading Dock Pavement Section Buffer Yard D Replanted Areas in this Phase Type A Buffer Yard (UDO 8.7.A.1) STREAM, BUFFER, AND WETLAND IMPACTS SYMBOL DESCRIPTION QUANTITY STREAM — PERMANENT 23 LF STREAM — TEMPORARY 21 LF ZONE 1 BUFFER — PERMANENT 3,067 SF ZONE 2 BUFFER — PERMANENT 3,905 SF ZONE 1 BUFFER — TEMPORARY 930 SF ZONE 2 BUFFER — TEMPORARY 456 SF PROPOSED BUILDING #7 WILL BE A PART OF THE EASTGATE 540 PROJECT. NOTWITHSTANDING THE TOWN'S WATER ALLOCATION POLICY (ORDINANCE # 15-10-05-001) REQUIREMENT OF 50 POINTS, DUE TO THE UNIQUE CONTRIBUTION TO THE TOWN'S TAX BASE, THE PROJECT SHALL ONLY BE REQUIRED TO ACHIEVE 47 TOTAL POINTS TO MERIT WATER ALLOCATION. CALCULATIONS ARE SHOWN BELOW: PROPOSED WAREHOUSE/DISTRIBUTION CENTER — 1,204,220 SF 1,204,220 SF > 500,000 SF (REQUIRED) POINTS EARNED: 41 POINTS ABATEMENT OF ANY EXISTING NON —CONFORMING STRUCTURES POINTS EARNED: 2 POINTS SIGNAGE OR STRIPING IMPROVEMENTS (KEMP DRIVE AT HODGE ROAD) POINTS EARNED: 1 POINT EXCLUSIVE USE OF XERISCAPING TECHNIQUES AND DROUGHT —TOLERANT SPECIES POINTS EARNED: TOTAL POINTS: 3 POINTS SITE DATA TABLE SITE ACREAGE: EXISTING ZONING: PROPOSED ZONING: OVERLAY DISTRICT: EXISTING LAND USE: PROPOSED LAND USE: WATERSHED: PROPOSED NO. BUILDINGS: TOTAL BUILDING AREA: FRONT SETBACK (MIN.) **: SIDE SETBACK (MIN.) **: CORNER SIDE SETBACK (MIN.) **: REAR SETBACK (MIN.) **: MAXIMUM HEIGHT: NC DEPARTMENT OF TRANSPORTATION 4917 OLD FAISON ROAD DB/PG 9494/2491 ZONING: OPEN SPACE PIN: 1743-55-3294 USE: VACANT RT (RURAL TRANSITION) MI (MANUFACTURING & INDUSTRIAL) SHOD (SPECIAL HIGHWAY OVERLAY DISTRICT) AGRICULTURE, FORESTRY (UDO 2.3.C.6) LOWER NEUSE RIVER 204,220 SF 10 FT 6 FT 10 FT 10 FT 5 STORIES ** FRONT, REAR, AND SIDE SETBACKS FROM OSP, RR, GR, UR, RMX, NMX, TC, AND HB DISTRICTS SHALL BE A MINIMUM OF 50 FT. LIMITS OF DISTURBANCE: IMPERVIOUS AREA: 50 16.6 ACRES 10.1 ACRES GRAPHIC SCALE 0 25 50 100 200 PLAN PREPARED BY: Suite 105 <0( 919.481.6290 fax 919.336.5127 z W U 0 a z C7 z w PLAN PREPARED FOR: J J 0 U 0 -tin o O W z F. a) -a a (%) Q W •L U o_ cn Z J a 1— Z Z re 1- 1- 0 >- `\‘„1“ 1111111/0 \\` ,�N CARD �i _ .. ES•s% ;V .Q� S Issue Dates: Date: 04/08/2021 Scale: 1" = 50' Drawn By: JLB Checked By: CMR Project Number: 20-0006-988 Drawing Number: EX -IA MARd,ARITA, MISLAN 5101 FAISON 'RIDGE, LN DB/PG;17544/237 ZONING: pR3 PIN: 17'3-34-2545 USE: SINGLE FAMILY 1 CD i i ELIZABETH WIL ON 500 ,ELLEN ,bR DB/P,G 1681'8/79/ ZONING: ,GR3 ,' PIN: 1743—,54-3,369 USE:.' SINGLE FAMILY,' <",N `^ O o> q O .,iso ,70 / a> U U 0:\19-0001-988NC\DWG\Production Drawings\EXHIBIT\Lot 7 Impact Exhibits \0001-988ex1b.dwg -------------- /RALPH & ANITA BLACK ,' 503 ELLEN DR DB/PG 2780/710 ZONING: GR3 PIN:,1743-34-3183 JJSE: SINGLE FAMILY/ LUIS LOPEZ,.O ABRIEV & MAR1A GUTIERREZ—BARRERA 311 ELLEN DR DB/PG',12567/1998 ZONING: GR3 PIN: 1 A43-34-4020' �1SE:/SINGLE FAMILY 28 280 -- 287 r28 CONCRETE FLUME =c o "'y�,�E � 277T 277 274= n_14 WETLAND IMPACTS = 2�1 41,765 SF --- 270 ------------------- ------- 268 ------- TOP: 268.5 ',N BTM: 264 TOP:267 BTM: 267 STREAM TOP OF BANK \ CENTERLINE OF STREAM N 2N N c9 \ i9 ll7 N N N -277.__ DRAINAGE SWALE 276 TOP:272 BTM: 262 272— TOP:258 BTM: 258 ------------------- - 257-- N---------------- 256 ----- 255 \ —25= 26a TOP: 274 BTM: 263 TOP: 272.1 272.20 BTM: 263.0 PRELIMINARY WETLAND LOCATIONS AND PRELIMINARY BUFFER DETERMINATIONS PROVIDED BY SPANGLER ENVIRONMENTAL. NO HISTORIC BUILDING OBSERVED ON THE SITE. NO FREE STANDING OR OPEN —GROWN OR FIELD GROWN TREES OBSERVED. BASED ON FIELD OBSERVATIONS AND THE REVIEW OF AVAILABLE DATA, PROTECTED SPECIES WERE NOT IDENTIFIED TO LIKELY OCCUR ON THE SITE. SITE IS HEAVILY WOODED WITH A MIXTURE OF PINES, HARDWOODS, AND UNDERSTORY VEGETATION. BY GRAPHIC PLOTTING ONLY THIS PROPERTY IS NOT LOCATED IN SPECIAL FLOOD HAZARD ZONE BY THE FEDERAL EMERGENCY MANAGEMENT AGENCY ON FLOOD INSURANCE RATE MAP, COMMUNITY PANEL NO. 3720174300J WITH AN EFFECTIVE DATE OF MAY 2, 2006, IN WAKE COUNTY NORTH CAROLINA. NO FIELD SURVEYING WAS PERFORMED TO DETERMINE THIS ZONE. / PROPOSED BASIN #5 N.P. 263.0 - 25B 255 ; --.254- - 253 - --.252- 251_- TOP: 274.8 BTM: 268 TOP: 275.1 BTM: 268 _ 255 `- JUDY M. HICKS JILL RYAN ,JOYNER 110 ELLEN DRIVE DB/PG 15088/2609 'ZONING: 'GR3 PIN: 11743-33-4,786 ` '''USE: SINGLE FAMILY I-87/US 64E EXPRESSWAY -RAN VARIES) BILLY S. MYRICK 312 ELLEN DRIVE \ DB/PG 15662/1097 \ ZONING: GR3 - ' PIN: 1743-33-5891 USE: SINGLE FAMILY HODGE ROAD FUTURE PHASES LLC 0 SPECTRUM DRIVE DB/PG 17419/3837 ZONING: MI PIN: 1743-33-6268 USE: VACANT NC DEPARTMENT OF TRANSPORTN10N 4917 OLD FAISON ROAD DB/PG-9494/2491 ZONING: OPEN,SPACE PIN: 1743-55- 3294 USE: VACANT Ex. Overhead Electric Line Ex. Property Line Date: 04/08/2021 Scale: 1" = 50' I-87/US 64E EXPRESSWAY (R/W VARIES) GENERAL NOTES LEGEND TOWN OF KNIGHTDALE WATER ALLOCATION POLICY MARGARITA DIAZ MISLAN 5101 FAISON RIDGE LN DB/PG 17544/2377 BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-34-2545 USE: SINGLE FAMILY DEBORA T. KEITH AND MILTON E. KEITH 0 FAISON RIDGE RD BM/PG 2014/652 6"W ZONING: GENERAL RESIDENTIAL .74' PIN: 1743-34-4527 USE: VACANT EX. R/W 1. THE APPROVED 404 USACE INDIVIDUAL PERMIT (SAW-2014-02127) SHALL BE REVISED TO INCLUDE IMPACTS TO BUFFERS, STREAMS, AND WETLANDS FOR THIS PROJECT. 2. PROJECT SHALL BE COMPLIANT WITH SECTIONS 8.5-8.11 OF THE UDO. 3. OUTDOOR STORAGE IS NOT PERMITTED. 4. A TIA OR UPDATED TIA WILL BE REQUIRED. 5. THE UAA WILL NEED TO BE UPDATED. 6. PARKING LOT REQUIRED TO HAVE CURB AND GUTTER PER UDO 10.4B. N 20'49'1 112.01' MARGARITA MISLAN 5101 FAISON RIDGE LN DB/PG 17544/2377 ZONING: GR3 PIN: 1743-34-2545 USE: SINGLE FAMILY \ / ELIZABETH WILSON 500 ELLEN DR DB/PG 16818/79 ZONING: GR3 PIN: 174 3369 USE: SI LE F MILYLY W ELIZABETH MARTIN WILSON 500 ELLEN DRIVE DB/PG 16818/79 BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-34-3369 USE: SINGLE FAMILY \\; / Y / / ,,.....************************;------ / S84'39'00"E 301.44' 1 PROPOSED SWALE, TYP. co -7 • RALPH & ANITA BLACK RALPH WI@L \ISO-EBLD, CK AND \ ANITA ev."" ACK 5Q4J: 3 11.,1 DGSI Cf/oilt1 4 BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-34-3183 USE: SINGLE FAMILY / / / / LUIS LOPEZ-GABRIEL & MARIA GUTIERREZ-BARRERA 311 ELLEN DR DB/PG 12567/1998\0 ZONING: G P��P PIN: 1743- SE: SIrl s 0 \ \�\`\P 1\`(- 'S11IPG Nri'G 9P0 F O \y / / \�P� 00�I�\�� �� FPS//// -1,0 \s 0. S; 14\ - / / 600 ,0:, / / JUDY M. HICKS JILL RYAN JOYNER 310 ELLEN DRIVE DB/PG 15088/2609 ZONING: GR3 PIN: 1743-33-426 USE: SIN„GL'B FAMILY \ S \ > \ � JUDY M. HICKS JILL RYAN JOYNER PARKING CALCULATIONS USE TYPE: STORAGE - WAREHOUSE, INDOOR STORAGE MAXIMUM NO. OF PARKING SPACES: 0.7 PER KSF GFA MINIMUM NO. OF PARKING SPACES: 0.5 X MAXIMUM **KSF = 1,000 SF; GFA = GROSS FLOOR AREA NOTE: THE PROVIDED SPACES EXCEED THE MAXIMUM NUMBER OF SPACES. FUTURE LANDSCAPE PLANS WILL SHOW THE EXCEEDING SPACES ARE NO MORE THAN 30 FEET FROM THE BASE OF A LARGE SHADE TREE PER UDO SECTION 10.3E(2)a. PROPOSED POND IS A WET POND AND PROVIDES A 30% REDUCTION IN TOTAL NITROGEN PER UDO SECTION 10.3E(2)b(iii). 24' 33' BILLY S. MYRICK 312 ELLEN DRIVE DB/PG 15662/1097 ZONING: GR3 PIN: 1743-33-5891 USE: SINGLE FAMILY S85'03'09"E 552.55' 50' TYPE "D" BUFFER YARD 50' SHOD OVERLAY 50' BUILDING SETBACK -->--i—i—i- - PROPOSED 24" CURB AND GUTTER, TYP. BILLY S. MYRICK 312 ELLEN DRIVE DB/PG 15662/1097 BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-33-5891 USE: SINGLE FAMILY PROP. 5' SIDEWALK r F. Lr r r F. r /2, * * * * ' * * \ * * W * '1' * * * r * * * * * * * * * * * * * * 4/* �/4" * * * * * ,`, * * * * 4' l TYPE "D" BUFFER YARD TYPICAL PLANTING EVERY 100' PROPOSED SWALE, TYP. **u11.00 411_ 0 O Iron Pipe Found • Calculated Point Railroad Spike Electric Power Pole Q' Fire Hydrant -� Surface Flow Arrow 7 x xx I MO IN 11E001 / 1 136»E 541.13, Ex. Fence Line Ex. Property Line Property Line Proposed Storm Sewer Proposed Swale Ex. Wetlands Loading Dock Pavement Section Buffer Yard D Replanted Areas in this Phase Type A Buffer Yard (UDO 8.7.A.1) — ——}—}—}—}—i-- --}—i—i—}—��— — —}—>—> 163 AUTO SPACES EX. WETLANDS SEE NOTE 1 * 4' * 4'4,* * * * * *4'* ,y 4'* ` • 1 * * NIA' * * r. * '1' * * * * 4,• * * * * y ,�' 4, * 4' 4.d' '1' 4,* .4,* * �I ,* * * * * `�I *, * * * `�Y * * * 4'* W * W * * 4' * * * WETLAND IMPACTS = 41,765 SF * * r,1. i r r.-r.`3 * STAR, a0f '27 DOCK SPACES IN ENGTH =254 LF * * TERMITTENT STREAM ZONE 1 PERMANENT BUFFER IMPACTS AREA = 16,233 SF LOT NO. LOT AREA (AC) BUILDING NO. GFA GFA (SF)INCREASE MAX. SPACES MIN. SPACES.WITH MAX. SPACES 15% AUTO SPACES PROVIDED TRUCK SPACES PROVIDED TOTAL SPACES PROVIDED 7 20.234 7 204,220 143 72 165 163 0 163 7 7 7 PROPOSED BASIN #4 PROP. STORM SEWER, TYP. i HODGE ROAD FUTURE PHASES, LLC DB 17419, PG 383 BM 2019, PG 1293 ZONING: MANUFACTURING PIN: 174 • T 2 -2471 (40.714 ACRES) 11 USTRIAL FUTURE BUILDING #4 36' x•ows loo ELECTRICAL ROOM 2' �t 014 16 S FUTURE POND #3 LOT 7 20.234 AC. BUILDING #7 (204,220 SF) 850 X 240' 850' 4. PROP. 6' SIDEWALK FIRE PUMP ROOM DUMPSTER i TRANSFORMER ZONE 2 PERMANENT BUFFER IMPACTS \ AREA = 12,705 SF -56 99 4-4 IZE DOCK SPACES PROP. CATCH BASIN, TYP. —EX. INTERMITTENT STREAM PROPOSED SEE NOTE #1 SWALE, TYP. -7v HODGE ROAD FUTURE PHASES LLC 0 SPECTRUM DRIVE DB/PG 17419/3837 ZONING: MI PIN: 1743-33-6268 USE: VACANT 6' PROP. STORM SEWER, TYP. EX. STREAM Nk ZoNE oo PROPOSED BUILDING #7 WILL BE A PART OF THE EASTGATE 540 PROJECT. NOTWITHSTANDING THE TOWN'S WATER ALLOCATION POLICY (ORDINANCE # 15-10-05-001) REQUIREMENT OF 50 POINTS, DUE TO THE UNIQUE CONTRIBUTION TO THE TOWN'S TAX BASE, THE PROJECT SHALL ONLY BE REQUIRED TO ACHIEVE 47 TOTAL POINTS TO MERIT WATER ALLOCATION. CALCULATIONS ARE SHOWN BELOW: PROPOSED WAREHOUSE/DISTRIBUTION CENTER - 1,204,220 SF 1,204,220 SF > 500,000 SF (REQUIRED) POINTS EARNED: 41 POINTS ABATEMENT OF ANY EXISTING NON -CONFORMING STRUCTURES POINTS EARNED: 2 POINTS SIGNAGE OR STRIPING IMPROVEMENTS (KEMP DRIVE AT HODGE ROAD) POINTS EARNED: 1 POINT EXCLUSIVE USE OF XERISCAPING TECHNIQUES AND DROUGHT -TOLERANT SPECIES POINTS EARNED: TOTAL POINTS: 2 3 POINTS rn STREAM, BUFFER, AND WETLAND IMPACTS • SYMBOL DESCRIPTION QUANTITY STREAM - PERMANENT 254 LF STREAM - TEMPORARY 0 LF ZONE 1 BUFFER - PERMANENT 16,233 SF ZONE 2 BUFFER - PERMANENT 12,705 SF ZONE 1 BUFFER - TEMPORARY 0 SF ZONE 2 BUFFER - TEMPORARY 0 SF PROPOSED BASIN #5 50' -4 rn NC DEPARTMENT OF TRANSPORTATION 4917 OLD FAISON RD ZONING: OPEN SPACE PRESERVE PIN: 1743-55-3294 4917 OLD FAISON ROAD DB/PG 9494/2491 ZONING: OPEN SPACE PIN: 1743-55-3294 USE: VACANT rn 41, HODGE ROAD FUTURE PHASE5_,-LLC PIN: 1743-43-2471 LOT 2 (40.714 Arr"- SITE DATA TABLE SITE ACREAGE: EXISTING ZONING: PROPOSED ZONING: OVERLAY DISTRICT: EXISTING LAND USE: PROPOSED LAND USE: WATERSHED: PROPOSED NO. BUILDINGS: TOTAL BUILDING AREA: FRONT SETBACK (MIN.) **: SIDE SETBACK (MIN.) **: CORNER SIDE SETBACK (MIN.) **: MAXIMUM HEIGHT: RT (RURAL TRANSITION) MI (MANUFACTURING & INDUSTRIAL) SHOD (SPECIAL HIGHWAY OVERLAY DISTRICT) AGRICULTURE, FORESTRY (UDO 2.3.C.6) LOWER NEUSE RIVER 204,220 SF 10 FT 6 FT 10 FT 10 FT 5 STORIES ** FRONT, REAR, AND SIDE SETBACKS FROM OSP, RR, GR, UR, RMX, NMX, TC, AND HB DISTRICTS SHALL BE A MINIMUM OF 50 FT. LIMITS OF DISTURBANCE: IMPERVIOUS AREA: 50 16.9 ACRES 9.5 ACRES GRAPHIC SCALE 0 25 50 100 200 ( IN FEET ) 1 inch = 50 ft. PLAN PREPARED BY: Suite 105 919.481.6290 0. <0( fax 919.336.5127 0 44 PLAN PREPARED FOR: IX 0 -tin 0 NN Ti cn 0 0 >- Q. ((0.,*(.11?,;11\,\t'".\;<<:." Issue Dates: Date: 04/08/2021 Scale: 1" = 50' Drawn By: JLB Checked By: CMR Project Number: 20-0006-988 Drawing Number: EX-2 I-87/US 64E EXPRESSWAY (R/W VARIES) GENERAL NOTES LEGEND TOWN OF KNIGHTDALE WATER ALLOCATION POLICY a) 0 0: \19-0001-988NC\DWG\Production Drawings\EXHIBIT\Lot 7 Impact Exhibits\0001-988ex3.dwg MARGARITA DIAZ MISLAN 5101 FAISON RIDGE LN DB/PG 17544/2377 BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-34-2545 USE: SINGLE FAMILY N 20'49'1 112.01' MARGARITA MISLAN 5101 FAISON RIDGE LN DB/PG 17544/2377 ZONING: GR3 PIN: 1743-34-2545 USE: SINGLE FAMILY ` / ELIZABETH WILSON 500 ELLEN DR DB/PG 16818/79 ZONING: GR3 PIN: 1743- 3369 USE: SI LE F MILYLY ELIZABETH MARTIN WILSON 500 ELLEN DRIVE DB/PG 16818/79 BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-34-3369 USE: SINGLE FAMILY / _ i / / / / / W / / / DEBORA T. KEITH AND MILTON E. KEITH 0 FAISON RIDGE RD BM/PG 2014/652 6"W ZONING: GENERAL RESIDENTIAL .74' PIN: 1743-34-4527 USE: VACANT S84'39'00"E 301.44' S. O. \ 3s G) \ \ \\ RALPH & ANITA BLACK RALPH WI@L \I O-EBIPACK AND ANITA G�R�3ea :" ACK 5Q41: 3'11.,1`& DGSI (FP?tl-M BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-34-3183 USE: SINGLE FAMILY / \ \ \ LUIS LOPEZ-GABRIEL & \ MARIA GUTIERREZ-BARRERA 311 ELLEN DR \ \ DB/PG 12567/199;0 ZONING: G P c�' \ PIN: 1743- 4 \ I SE: SI ����� o�\� 9g� / I II1$° ��\P / 56 \O� ��G �1P G 6ol-Nti� / / \S �c' 5 G \g Fz 0 /o POND 6 gGp� I ��G�� ` ,Lod\� P\ SF . � / rp0 /G / ' 0. \G� 9 / �' e / / JUDY M. HICKS JILL RYAN JOYNER 310 ELLEN DRIVE DB/PG 15088/2609 ZONING: GR3 PIN: 1743-33-426 USE: SIN„GL'B FAMILY \ JUDY M. HICKS JILL RYAN JOYNER PARKING CALCULATIONS USE TYPE: STORAGE — WAREHOUSE, INDOOR STORAGE MAXIMUM NO. OF PARKING SPACES: 0.7 PER KSF GFA MINIMUM NO. OF PARKING SPACES: 0.5 X MAXIMUM **KSF = 1,000 SF; GFA = GROSS FLOOR AREA 8' 24' -18' cP BILLY S. MYRICK 312 ELLEN DRIVE DB/PG 15662/1097 ZONING: GR3 PIN: 1743-33-5891 USE: SINGLE FAMILY BILLY S. MYRICK 312 ELLEN DRIVE DB/PG 15662/1097 BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-33-5891 USE: SINGLE FAMILY LOT NO. LOT AREA (AC) BUILDING NO. GFA GFA (SF)INCREASE MAX. SPACES MIN. SPACES.WITH MAX. SPACES 15% AUTO SPACES PROVIDED TRUCK SPACES PROVIDED TOTAL SPACES PROVIDED 7 20.234 7 280,000 196 98 225 80 48 128 10' ZONE 1 TOTAL PERM. BUFFER IMPACTS AREA = 27,371 SF O O W EX. R/W S85'03'09"E 552.55' 50' TYPE "D" BUFFER YARD 50' SHOD OVERLAY 50' BUILDING SETBACK EX. WETLANDS * 4. • 4. 9 STND 1. THE APPROVED 404 USACE INDIVIDUAL PERMIT (SAW-2014-02127) SHALL BE REVISED TO INCLUDE IMPACTS TO BUFFERS, STREAMS, AND WETLANDS FOR THIS PROJECT. — 2. PROJECT SHALL BE COMPLIANT WITH SECTIONS 8.5-8.11 OF THE UDO. 3. OUTDOOR STORAGE IS NOT PERMITTED. 4. A TIA OR UPDATED TIA WILL BE REQUIRED. 5. THE UAA WILL NEED TO BE UPDATED. 6. PARKING LOT REQUIRED TO HAVE CURB AND GUTTER PER UDO 10.4B. DOCK SPAC WETLAND IMPACTS = 41,765 SF • START OF INTERMITTENT STREAM PERMANENT STREAM IMPACTS LENGTH =415 LF POND 4 HODGE ROAD FUTURE PHASES, LLC DB 17419, PG 383 BM 2019, PG 1293 ZONING: MANUFACTURING BUSTRIAL (40.714 ACRES) FUTURE BUILDING #4 ES • • ES 4,44L • • 700' TYPE "D" BUFFER YARD TYPICAL PLANTING EVERY 100' LOT 7 20.234 AC. BUILDING #5 (280,000 SF) ZONE 2 TOTAL PERM. BUFFER IMPACTS \ AREA = 18,981 SF -50 HODGE ROAD FUTURE PHASES LLC 0 SPECTRUM DRIVE DB/PG 17419/3837 ZONING: MI PIN: 1743-33-6268 USE: VACANT FUTURE POND #3 • Simko -o • FIFITI Iron Pipe Found Calculated Point Railroad Spike Electric Power Pole Fire Hydrant Surface Flow Arrow fi 0 I* MI Mal x— Ex. Fence Line Ex. Property Line Property Line Proposed Storm Sewer Ex. Wetlands Loading Dock Pavement Section Buffer Yard D Replanted Areas in this Phase Type A Buffer Yard (UDO 8.7.A.1) 70' PROPOSED BUILDING #7 WILL BE A PART OF THE EASTGATE 540 PROJECT. NOTWITHSTANDING THE TOWN'S WATER ALLOCATION POLICY (ORDINANCE # 15-10-05-001) REQUIREMENT OF 50 POINTS, DUE TO THE UNIQUE CONTRIBUTION TO THE TOWN'S TAX BASE, THE PROJECT SHALL ONLY BE REQUIRED TO ACHIEVE 47 TOTAL POINTS TO MERIT WATER ALLOCATION. CALCULATIONS ARE SHOWN BELOW: PROPOSED WAREHOUSE/DISTRIBUTION CENTER — 1,204,220 SF 1,204,220 SF > 500,000 SF (REQUIRED) POINTS EARNED: 41 POINTS ABATEMENT OF ANY EXISTING NON —CONFORMING STRUCTURES POINTS EARNED: 2 POINTS SIGNAGE OR STRIPING IMPROVEMENTS (KEMP DRIVE AT HODGE ROAD) POINTS EARNED: 1 POINT EXCLUSIVE USE OF XERISCAPING TECHNIQUES AND DROUGHT —TOLERANT SPECIES POINTS EARNED: TOTAL POINTS: 70' 70' 3 POINTS 50' TRACTOR TRAILER STORAGE 48 TRAILER SPACES STREAM, BUFFER, AND WETLAND IMPACTS SYMBOL DESCRIPTION QUANTITY STREAM — PERMANENT 415 LF STREAM — TEMPORARY 0 LF ZONE 1 BUFFER — PERMANENT 27,371 SF ZONE 2 BUFFER — PERMANENT 18,981 SF ZONE 1 BUFFER — TEMPORARY 0 SF ZONE 2 BUFFER — TEMPORARY 0 SF Nv POND 5 -4 -0 rn rn .23 NC DEPARTMENT OF TRANSPORTATION 4917 OLD FAISON RD DB/PG 9494/2491 ZONING: OPEN SPACE PRESERVE PIN: 1743-55-3294 4917 OLD FAISON ROAD DB/PG 9494/2491 ZONING: OPEN SPACE PIN: 1743-55-3294 USE: VACANT SITE DATA TABLE SITE ACREAGE: EXISTING ZONING: PROPOSED ZONING: OVERLAY DISTRICT: EXISTING LAND USE: PROPOSED LAND USE: WATERSHED: PROPOSED NO. BUILDINGS: TOTAL BUILDING AREA: SIDE SETBACK (MIN.) **: CORNER SIDE SETBACK (MIN.) **: REAR SETBACK (MIN.) **: MAXIMUM HEIGHT: CA Hnr- RT (RURAL TRANSITION) MI (MANUFACTURING & INDUSTRIAL) SHOD (SPECIAL HIGHWAY OVERLAY DISTRICT) AGRICULTURE, FORESTRY (UDO 2.3.C.6) LOWER NEUSE RIVER 204,220 SF 10 FT 6 FT 10 FT 10 FT 5 STORIES ** FRONT, REAR, AND SIDE SETBACKS FROM OSP, RR, GR, UR, RMX, NMX, TC, AND HB DISTRICTS SHALL BE A MINIMUM OF 50 FT. LIMITS OF DISTURBANCE: IMPERVIOUS AREA: 50 20.9 ACRES 13.3 ACRES GRAPHIC SCALE 0 25 50 100 200 ( IN FEET ) 1 inch = 50 ft. PLAN PREPARED BY: Suite 105 919.481.6290 0. <0( fax 919.336.5127 cip 0 44 PLAN PREPARED FOR: 0 -tin 0 TD cn 0 0 >— (0, R.o.INI\it. \*''\<<,.\\‘ Issue Dates: Date: 04/08/2021 Scale: 1" = 50' Drawn By: JLB Checked By: CMR Project Number: 20-0006-988 Drawing Number: EX-3 U U 0: \19-0001-988NC\DWG\Production Drawings\EXHIBIT\Lot 7 Impact Exhibits\0001-988ex4.dwg MARGARITA DIAZ MISLAN 5101 FAISON RIDGE LN DB/PG 17544/2377 BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-34-2545 USE: SINGLE FAMILY N 20'49' 1. "W 112.01' MARGARITA MISLAN 5101 FAISON RIDGE LN DB/PG 17544/2377 ZONING: GR3 PIN: 1743-34-2545 USE: SINGLE FAMILY ` ELIZABETH WILSON 500 ELLEN DR DB/PG 16818/79 ZONING: GR3 PIN: 1743- 3369 USE: SI LE F MILYLY ELIZABETH MARTIN WILSON 500 ELLEN DRIVE DB/PG 16818/79 BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-34-3369 USE: SINGLE FAMILY .......*********************:"-- Y / DEBORA T. KEITH AND MILTON E. KEITH 0 FAISON RIDGE RD BM/PG 2014/652 6"W ZONING: GENERAL RESIDENTIAL .74' PIN: 1743-34-4527 USE: VACANT S84'39'00"E 301.44' RALPH & ANITA BLACK RALPH WI@L \MEBLD, CK AND ANITA �e�_ :" ACK 5Q J: 3 41'.,1 DBE P.GSI Cf/oSlt14 BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-34-3183 USE: SINGLE FAMILY LUIS LOPEZ-GABRIEL & \ MARIA GUTIERREZ-BARRERA 311 ELLEN DR \ \ \ DB/PG 12567/1998\0 ZONING: G P e�P PIN: 1743- SE: �ti��� ti' \ I ► I ,,�ppsG\ ,c-s`9gb\P\ / / ,O,��\ tihg6i q50 p / / -�\SPA c6 i QG ,P\- D� 0.-`l /� / / \pFz O 0\ ic,c\ c ,5 F c- JUDY M. HICKS JILL RYAN JOYNER 310 ELLEN DRIVE DB/PG 15088/2609 ZONING: GR3 PIN: 1743-33-46 USE: SINNL'B FAMILY \ i \ v JUDY M. HICKS JILL RYAN JOYNER PARKING CALCULATIONS USE TYPE: STORAGE — WAREHOUSE, INDOOR STORAGE MAXIMUM NO. OF PARKING SPACES: MINIMUM NO. OF PARKING SPACES: 0.7 PER KSF GFA 0.5 X MAXIMUM **KSF = 1,000 SF; GFA = GROSS FLOOR AREA I-87/US 64E EXPRESSWAY (R/W VARIES) BILLY S. MYRICK 312 ELLEN DRIVE DB/PG 15662/1097 ZONING: GR3 PIN: 1743-33-5891 USE: SINGLE FAMILY BILLY S. MYRICK 312 ELLEN DRIVE DB/PG 15662/1097 BM/PG 1960/286 ZONING: GENERAL RESIDENTIAL PIN: 1743-33-5891 USE: SINGLE FAMILY LOT NO. LOT AREA (AC) BUILDING NO. GFA GFA (SF)INCREASE MAX. SPACES MIN. SPACES.WITH MAX. SPACES 15% AUTO SPACES PROVIDED TRUCK SPACES PROVIDED TOTAL SPACES PROVIDED 7 20.234 7 280,000 196 98 225 132 48 180 HODGE ROAD FUTURE PHASES LLC 0 SPECTRUM DRIVE DB/PG 17419/3837 ZONING: MI PIN: 1743-33-6268 USE: VACANT TYPE "D" BUFFER YARD TYPICAL PLANTING EVERY 100' LOT 7 20.234 AC. BUILDING #5 (280,000 SF) 700' X 400' ZONE 2 TOTAL PERM. BUFFER IMPACTS AREA = 24,446 SF GENERAL NOTES 1. THE APPROVED 404 USACE INDIVIDUAL PERMIT (SAW-2014-02127) SHALL BE REVISED TO INCLUDE IMPACTS TO BUFFERS, STREAMS, AND WETLANDS FOR THIS PROJECT. — 2. PROJECT SHALL BE COMPLIANT WITH SECTIONS 8.5-8.11 OF THE UDO. 3. OUTDOOR STORAGE IS NOT PERMITTED. 4. A TIA OR UPDATED TIA WILL BE REQUIRED. 5. THE UAA WILL NEED TO BE UPDATED. 6. PARKING LOT REQUIRED TO HAVE CURB AND GUTTER PER UDO 10.4B. S85'03'09"E 552.55' 50' TYPE "D" BUFFER YARD 50' SHOD OVERLAY 50' BUILDING SETBACK POND 8 EX. WETLANDS SEE NOTE 1 WETLAND IMPACTS = 41,765 SF START OF INTERMITTENT STREAM PERMANENT STREAM IMPACTS LENGTH =611 LF ZONE 1 TOTAL PERM. BUFFER IMPACTS AREA = 37,521 SF POND 4 HODGE ROAD FUTURE PHASES, LLC DB 17419, PG 383 BM 2019, PG 1293 ZONING: MANUFACTURING & INDUSTRIAL PIN: 1743-43-2471 LOT 2 (40.714 ACRES) FUTURE BUILDING #4 'boo OA -act 0 LEGEND O Iron Pipe Found • Calculated Point Railroad Spike Electric Power Pole Q' Fire Hydrant -� Surface Flow Arrow EX. STREAM x Ex. Fence Line Ex. Property Line Property Line Proposed Storm Proposed Swale Ex. Wetlands Loading Dock Pavement Section Sewer Buffer Yard D Replanted Areas in this Phase Type A Buffer Yard (UDO 8.7.A.1) STREAM, BUFFER, AND WETLAND IMPACTS SYMBOL DESCRIPTION QUANTITY STREAM — PERMANENT 611 LF STREAM — TEMPORARY 0 LF W 4,4,W ,r .,. • 4, * W '' 4 WETLAND — PERMANENT 50,698 SF ZONE 1 BUFFER — PERMANENT 37,521 SF ZONE 2 BUFFER — PERMANENT 24,446 SF ZONE 1 BUFFER — TEMPORARY 0 SF ZONE 2 BUFFER — TEMPORARY 0 SF TOWN OF KNIGHTDALE WATER ALLOCATION POLICY PROPOSED BUILDING #7 WILL BE A PART OF THE EASTGATE 540 PROJECT. NOTWITHSTANDING THE TOWN'S WATER ALLOCATION POLICY (ORDINANCE # 15-10-05-001) REQUIREMENT OF 50 POINTS, DUE TO THE UNIQUE CONTRIBUTION TO THE TOWN'S TAX BASE, THE PROJECT SHALL ONLY BE REQUIRED TO ACHIEVE 47 TOTAL POINTS TO MERIT WATER ALLOCATION. CALCULATIONS ARE SHOWN BELOW: PROPOSED WAREHOUSE/DISTRIBUTION CENTER — 1,204,220 SF 1,204,220 SF > 500,000 SF (REQUIRED) POINTS EARNED: 41 POINTS ABATEMENT OF ANY EXISTING NON —CONFORMING STRUCTURES POINTS EARNED: 2 POINTS SIGNAGE OR STRIPING IMPROVEMENTS (KEMP DRIVE AT HODGE ROAD) POINTS EARNED: 1 POINT EXCLUSIVE USE OF XERISCAPING TECHNIQUES AND DROUGHT —TOLERANT SPECIES POINTS EARNED: TOTAL POINTS: WETLAND IMPACTS = 8,933 SF 3 POINTS 41 + 2 + 1 +3=47POINTS POND 5 SITE DATA TABLE SITE ACREAGE: EXISTING ZONING: PROPOSED ZONING: OVERLAY DISTRICT: EXISTING LAND USE: PROPOSED LAND USE: WATERSHED: PROPOSED NO. BUILDINGS: TOTAL BUILDING AREA: FRONT SETBACK (MIN.) **: SIDE SETBACK (MIN.) **: CORNER SIDE SETBACK (MIN.) **: REAR SETBACK (MIN.) **: MAXIMUM HEIGHT: NC DEPARTMENT OF TRANSPORTATION 4917 OLD FAISON RD DB/PG 9494/2491 ZONING: OPEN SPACE PRESERVE PIN: //rrpp 1743-55-3294pp NC DEPENT'OFTR'ANSPORTATION 4917 OLD FAISON ROAD DB/PG 9494/2491 ZONING: OPEN SPACE PIN: 1743-55-3294 USE: VACANT HODGE ROAD FUTURE ID" DB 17A + 20.234 ACRES (LOT 7) RT (RURAL TRANSITION) MI (MANUFACTURING & INDUSTRIAL) SHOD (SPECIAL HIGHWAY OVERLAY DISTRICT) AGRICULTURE, FORESTRY MANUFACTURING/WAREHOUSE/STORAGE (UDO 2.3.C.6) LOWER NEUSE RIVER 1 204,220 SF 10 FT 6 FT 10 FT 10 FT 5 STORIES ** FRONT, REAR, AND SIDE SETBACKS FROM OSP, RR, GR, UR, RMX, NMX, TC, AND HB DISTRICTS SHALL BE A MINIMUM OF 50 FT. LIMITS OF DISTURBANCE: IMPERVIOUS AREA: 21.1 ACRES 13.2 ACRES GRAPHIC SCALE 25 50 100 Date: 04/08/2021 Scale: 1" = 50' Drawn By: JLB Checked By: CMR Project Number: 20-0006-988 Drawing Number: Restoration Systems, LLC 1101 Haynes St. Suite 211 Raleigh, North Carolina Ph: (919) 755-9490 Fx: (919) 755-9492 Statement of Mitigation Credit Availability Pancho Mitigation Bank January 19, 2021 Army Corps of Engineers Ms. Samantha Dailey Re: Availability of Compensatory Wetland Credits Project: Eastgate 540 RS RESTORATION SYSTEMS I LLC This document confirms that 2.816 Wetland Credits (Credits) from the Pancho Mitigation Bank (Bank) are currently available and all or a portion may be used, once transferred, for compensatory mitigation relative to the Eastgate 540 project, and as proposed by Sherrie Chaffin (Applicant). The Applicant may ultimately purchase the Credits, if they are available, following Permit issuance. Should the Applicant purchase the Credits at that time, we will complete and execute the Mitigation Credit Transfer Certificate (Certificate) within five (5) days of receipt of the full purchase price. We will additionally provide copies of the completed and executed Certificate to the Applicant, the Division of Water Resources (DWR) and, if needed, other regulatory agencies. In addition, we will provide DWR with an updated copy of the Bank's Ledger, reflecting the transaction. Transaction information in the updated Bank Ledger will include relevant Permit and Applicant information as well as the number and resource type of the debited Credits. Should your office have any questions, please contact me at 919.334.9123. Sincerely, Tiffani Bylow Restoration Systems, LLC fires EBX-Neuse I, LLC Stream and Wetland Banks Statement of Availability March 29, 2021 U.S. Army Corps of Engineers Samantha Dailey Raleigh Regulatory Field Office 3331 Heritage Trade Center, Suite 105 Wake Forest, NC 27587 Re Project: Eastgate 540 This document confirms that Sherrie Chaffin (Applicant) for the Eastgate 540 (Project) has expressed an interest to utilize 46.00 Stream Mitigation Credits the EBX-Neuse sponsored Neu -Con Wetland & Stream Umbrella Mitigation Bank, specifically 46.00 stream credits from the Blackbird Site, in the Neuse HUC 03020201. As the official Bank Sponsor, EBX-Neuse I, LLC, attests to the fact that mitigation is available for reservation at this time. These mitigation credits are not considered secured, and consequently are eligible to be used for alternate purposes by the Bank Sponsor, until payment in full is received from the Applicant resulting in the issuance of a Mitigation Credit Transfer Certificate by the bank acknowledging that the Applicant has fully secured credits from the bank and the Banker has accepted full responsibility for the mitigation obligation requiring the credits/units. The Banker will issue the Mitigation Credit Transfer Certificate within three (3) days of receipt of the purchase price. Banker shall provide to Applicant a copy of the Mitigation Credit Transfer Certificate and a documented copy of the debit of credits from the Bank Official Credit Ledger(s), indicating the permit number and the resource type secured by the applicant. A copy of the Mitigation Credit Transfer Certificate, with an updated Official Credit Ledger will also be sent to regulatory agencies showing the proper documentation. If any questions need to be answered, please contact me at 919-209-1075. Best Regards, Caitlan B. Parker Resource Environmental Solutions, LLC 701 E. Bay Street, Suite 306 Charleston, SC 2922.903 WI LDLANDS HOLDINGS Statement of Availability March 31, 2021 Ms. Sherrie Chaffin 0 Ellen Drive, Knightdale, NC 27545 RE: Availability of Stream Credits for the "Eastgate 540" project Bank Name: Falling Creek Stream and Wetland Umbrella Mitigation Bank Bank Site: Falling Creek Site Bank Sponsor: Wildlands Holdings III, LLC USACE Action ID: 2015-00940 Stream Credits Needed: 46 LF Stream Credits Available: 1,805.49 LF Neuse 03020201 River Basin Dear Ms. Chaffin, Wildlands Holdings III, LLC has the above -mentioned stream credits from the Falling Creek Stream and Wetland Umbrella Mitigation Bank: Falling Creek Site to satisfy the mitigation requirements related to the above -mentioned project. The project is located within the service area (HUC 03020201) of the Bank. Credits may be reserved for a period of 6 months upon the receipt of a non-refundable deposit of 10% of the purchase price. Should credits not be reserved, they will be sold on a first come, first serve basis. Credit prices will be guaranteed for a period of 6 months from the date of this letter and are then subject to change. An invoice for this transaction will be sent upon your request and we will reserve the credits and price for a period of 30 days from invoice. This letter is a Statement of Availability as of the date provided — it is not a reservation of credits nor a guarantee of price. Credits will be sold on a first come, first serve basis. Final transfer of credits will occur upon completion of the Mitigation Responsibility Transfer Form within the completed 404 permit. We appreciate the opportunity to assist you with your mitigation requirements. Please contact me at (704) 332-7754 x124 or ayarsinske@wildlandseng.com if you have any questions or need any additional information. Wildlands Holdings III, LLC • Wildlands Engineering, Inc • 1430 South Mint Street, Suite 104, Charlotte, NC 28203 WI LDLANDS HOLDINGS Sincerely, Ashley N. Yarsinske Wildlands Engineering, Inc. Marketing & Credit Sales ayarsinske@wildlandseng.com 0: (704) 332-7754 ext. 124 M: (757) 572-5269 Cc: Ms. Maria Polizzi, Project Environmental Scientist I Spangler Environmental, Inc. Ms. Samantha Dailey I USACE Mr. Rick Trone I Division of Water Resources Wildlands Holdings III, LLC • Wildlands Engineering, Inc • 1430 South Mint Street, Suite 104, Charlotte, NC 28203 fires EBX Buffer Mitigation Banks Statement of Availability March 29, 2021 NC Division of Water Resources Rick Trone 512 N. Salisbury St. Archdale Building, 9th floor Raleigh, NC 27604 Re Project: Eastgate 540 This document confirms that Sherrie Chaffin (Applicant) for the Eastgate 540 (Project) has expressed an interest to utilize 15,059.00 Square Feet of Riparian Buffer Mitigation Credits from one of the following banks, 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, or EBX Upper Neuse Riparian Buffer Umbrella Mitigation Bank. Specific bank sites that may be debited are Buffalo Branch, Selma Mill, Cedar Grove, Hatley, Ezell, Bucher, Hannah Bridge, Stone Creek, Meadow Spring, Uzzle, Poplar Creek and Polecat, all located in HUC 03020201. As the official Bank Sponsor, EBX-Neuse I, LLC and EBX, attests to the fact that mitigation is available for reservation at this time. These mitigation credits are not considered secured, and consequently are eligible to be used for alternate purposes by the Bank Sponsor, until payment in full is received from the Applicant resulting in the issuance of a Mitigation Credit Transfer Certificate by the bank acknowledging that the Applicant has fully secured credits from the bank and the Banker has accepted full responsibility for the mitigation obligation requiring the credits/units. The Banker will issue the Mitigation Credit Transfer Certificate within three (3) days of receipt of the purchase price. Banker shall provide to Applicant a copy of the Mitigation Credit Transfer Certificate and a documented copy of the debit of credits from the Bank Official Credit Ledger(s), indicating the permit number and the resource type secured by the applicant. A copy of the Mitigation Credit Transfer Certificate, with an updated Official Credit Ledger will also be sent to regulatory agencies showing the proper documentation. Please contact me at 919-209-1075 or cparker@res.us if you have any questions. Best, Caitlan B. Parker Resource Environmental Solutions, LLC 701 E. Bay Street, Suite 306 Charleston, SC 29403 Bank Sponsor — EBX-Neuse I, LLC and Environmental Banc & Exchange (EBX) REPORT OF GEOTECHNICAL ENGINEERING SERVICES EASTGATE 540 - BUILDING 7 Knightdale, North Carolina PREPARED FOR Trinity Capital Advisors 440 Church Street Suite 800 Charlotte, NC 28202 PREPARED BY MOSHER ENGINEERING, INC. 409-B Rogers View Court, Raleigh, North Carolina 27610 N.C. License No. C-2512 Project No. 23G-202 January 28, 2021 ENGINEERING A Stevenson Consulting Affiliate ENGINEERING A Stevenson Consulting Affiliate January 28, 2021 Trinity Capital Advisors 440 Church Street Suite 800 Charlotte, NC 28202 Attention: Ms. Sherrie Chaffin Reference: Report of Geotechnical Engineering Services Eastgate 540 — Building 7 Knightdale, North Carolina Mosher Project No. 023G-00202 409-B Rogers View Court Raleigh, NC 27610 Phone: 919-856-1550 Fax: 919-856-1555 Mosher Engineering, Inc., a Stevenson Consulting Affiliate (Mosher) has completed a geotechnical study for the referenced project. This work was competed in general accordance with Mosher Proposal P-23-064- 042517 that was executed on December 18, 2020 by Trinity Capital Advisors. The purpose of this exploration was to evaluate subsurface conditions with regard to foundation support and site development. This report presents a summary of our findings along with our conclusions and recommendations for geotechnical design and construction of the project. SITE AND PROJECT DESCRIPTIONS Site Description: The site consists of approximately 20.03 acres located on the east side of Hodge Road, just south of US Highway 64/264 Bypass and west of the future I-540 extension in Knightdale, North Carolina, as shown on Drawing No. 1 in the Appendix. The site is currently wooded and bordered by a drainage feature mainly traveling along the southern border of the site. Grades on the site generally slope downward from northwest to southeast. A high elevation of about 312 is located at the northwest corner of the site and low elevation of 260 at the southeastern corner of the site Project Description: A site layout being considered for the site indicates a single -story, high -bay warehouse structure with a 204,000 square -foot footprint. The proposed building will be surrounded by at -grade parking and truck loading dock. The preliminary site layout indicates 2 stormwater ponds will be constructed; one located in the southwest corner of the site and one in the southeast corner of the site. The preliminary plan does not specify if retaining walls will be required for the new development. We have assumed the structures will be steel -framed structures with tilt -up concrete exterior walls. Typical column loads for such buildings are usually less than 150 kips and wall loads of less than 5 kips per lineal foot. Finished floor elevations (FFE) for the structures were not available at the time of this report. SCOPE OF INVESTIGATION Field Exploration: Data from the 17 borings (designated B-1 through B-17) was used in our evaluation of this site for the currently planned development. Approximate locations are shown on the Boring Location Plan, Drawing No. 2 included in Appendix A. www.mosherengineering.com Trinity Capital Advisers Eastgate 540 — Building 7, Knightdale, NC Mosher Project No. 23G-202 January 28, 2021 1 Page 2 The borings were drilled in January 2021 by our subcontractor (Carolina Drilling Company) with a CME 45 track mounted drilling rig . The soil test borings were extended to depths ranging from 10 to 30 feet below the ground surface using continuous -flight, hollow -stem augers. Drilling fluid was not used in this process. Mosher personnel utilized a handheld GPS application and existing site features as references to locate and stake the borings. The elevations for the test boring were interpolated from contours shown on a 2017 topographic map of the site obtained from the Wake County Geographic Information Services website. Standard Penetration Tests were performed in the soil test borings at designated intervals using an automatic hammer in general accordance with ASTM D 1586. Samples were generally obtained at 1 % to 2-foot intervals within the upper 5 feet of the soil profile, 21/2-foot intervals from 5 to 10 feet deep, and 5-foot intervals thereafter. The Standard Penetration Test (SPT) is used to provide an index for estimating soil strength and density. In conjunction with the penetration testing, split -barrel soil samples were recovered for soil classification and potential laboratory tests. Brief descriptions of the field-testing procedures and the individual Test Boring Records are included in Appendix B. Laboratory Services: The laboratory services provided for this phase of the project included visual classification of the soil samples by the project engineer and select laboratory testing (listed below) to verify soil properties. The color, texture and plasticity characteristics were used to identify each soil sample in general accordance with the Unified Soil Classification System (USCS). The results of the visual classifications are presented on the Test Boring Records included in Appendix B. Our laboratory services included 5 Atterberg Limit Tests (ASTM D4318), 5 Sieve #200 Wash Gradations (ASTM D1140), and 15 Natural Moisture Content Tests (ASTM D2216). The results of the following laboratory testing are presented in the Summary of Laboratory Test Data included in Appendix C. SITE AND SUBSURFACE FINDINGS Area Geology: The project site lies within the Eastern Slate Belt of the Piedmont Physiographic Province. Based on review of the published information pertaining to the geology in the vicinity of the site, the parent bedrock underlying the property generally consists of a megacrystic to equigranular foliated to massive granitic rock. These regional formations can be very resistant to chemical and physical weathering resulting in dense near -surface soils and very erratic subsurface profiles. Subsurface Conditions: The subsurface conditions at the site, as indicated by the borings, generally consist of a residual soil profile that has formed from the in -place weathering of the underlying parent bedrock. The generalized subsurface conditions are described below and illustrated on the Generalized Subsurface Profiles, Drawing Nos. 3 and 4 included in Appendix A. For soil descriptions and general stratification at a particular boring location, the respective Test Boring Record should be reviewed. Surficial Soil (topsoil) was encountered at the boring locations to an approximate depth of 4 to 8 inches below the existing ground surface. Surficial Soil is typically a dark -colored soil material containing roots, fibrous matter, and/or other organic components and is generally unsuitable for engineering purposes. Mosher has not performed any laboratory testing to determine the organic content or other horticultural properties of the observed Surficial Soil materials. Therefore, the term Surficial Soil is not intended to indicate a suitability for landscaping and/or other purposes. The Surficial Soil depths provided in this report are based on driller observations and should be considered approximate. We note that the transition from Surficial Soil to underlying materials may be gradual, and therefore the observation and measurement of Surficial Soil depths is subjective. Actual Surficial Soil depths should be expected to vary across the site. Within these wooded areas, the root systems of large trees can be quite extensive and may extend several feet below the ground surface. Trinity Capital Advisers Eastgate 540 — Building 7, Knightdale, NC Mosher Project No. 23G-202 January 28, 2021 1 Page 3 Below the topsoil, the borings typically encountered silty and clayey SANDs, SILTs, and CLAYs. Standard Penetration Test (SPT) resistances of these soils ranged from 1 to 66 blows per foot (BPF) with most SPT values ranging from 4 to 30 blows per foot (bpf). Seasonal High Water Table (SHWT) Observations: SHWT observations were performed by Scott Mitchel with Mitchell Environmental, PA. Based on the investigation conducted by Mitchell Environmental, the SHWT due to perched conditions was observed in Boring B-16 between 3 and 5 feet below grade. The SHWT was not observed in Boring B-17. The report by Mitchell Environmental, included in Appendix D of this report, provides details of the SHWT investigation along with a discussion of the results. The Mitchell Environmental report should be reviewed and considered in its entirety. Groundwater Observations: Groundwater measurements were attempted at the completion of each boring. Groundwater was measured in 15 of the borings upon completion at depths ranging from 2 to 17.5 feet below the existing ground surface, with typical depths ranging from 11 to 16 feet. Fluctuations in groundwater levels will occur with normal climatic and seasonal variations. PROJECT DESIGN RECOMMENDATIONS Based on our review of the site and subsurface information collected for this exploration, the primary subsurface conditions that we anticipate will affect site development are the presence of localized pockets of plastic fine-grained soils, soft surface soils, and groundwater level near or above final site grades. The following is a brief discussion of the significance of these conditions. 1. Plastic fine-grained soils, visually classified primarily as SILT and CLAY are present within the upper soil profile at some boring locations. Some of the soils encountered may be highly plastic. Such high plasticity soils may not be suitable for direct support of shallow foundations due to their shrink -swell potentials. Due to the presence of fine-grained/plastic soils on this site, grading activities are recommended during the typically drier and warmer summer months. If construction during the wetter, late fall and winter months is required, additional time and effort should be anticipated for conditioning most of the fine- grained materials for onsite use. Moisture contents of soils at the time of construction will depend upon several factors, including the amount of preceding precipitation and the time of year grading operations are conducted. Since natural moisture contents of several samples obtained from our exploration were above their estimated optimum moisture content for compaction, we anticipate many of the soils will require drying prior to compaction. Alternatively, lime stabilization techniques may be an effective method for preparing some of the wet soils for compaction. 2. Soft near surface soils were encountered in some of the boring locations. There may be localized pockets of soft/wet or alluvial soils that require undercutting, particularly in the low-lying areas. Some undercutting or bridging of soft/saturated soils may be necessary prior to placing structural fill, particularly during wet months of the year or following heavy rainfall events. 3. Groundwater was encountered in some of the borings at elevations than may be near or above final site grades. Given these depths, localized perched groundwater may be encountered in some excavations that may impact the design and construction within those areas of the proposed development. Temporary diversion of surface water will likely be required in some areas during construction. Groundwater problems, if encountered, should be addressed in the field by a geotechnical engineer from our office as they occur. Trinity Capital Advisers Eastgate 540 — Building 7, Knightdale, NC Mosher Project No. 23G-202 January 28, 2021 1 Page 4 Foundation Support: Provided the recommendations outlined herein are implemented, the proposed structures can be adequately supported on shallow foundation systems consisting of spread footings bearing on suitable residual soils or on compacted structural fill. Net allowable bearing pressures of 3,000 pounds per square foot (PSF) can be used for preliminary design of the foundations. net allowable bearing pressure is that pressure which may be transmitted to the soil in excess of the minimum surrounding overburden pressure. Minimum wall (strip) and column footing dimensions of 16 and 24 inches, respectively, should be maintained to reduce the possibility of a localized, "punching" type, shear failure. Exterior foundations and foundations in unheated areas should be designed to bear at least 18 inches below finished grades for frost protection. Site Classification: Based upon the site's geology and the SPT values encountered in the test borings, we recommend that Site Class D be used for determination of earthquake loads and ground motion acceleration for the site. This recommended Site Class was developed in accordance with Table 1613.3.2 and ASCE 7 Table 20.3-1 of the 2018 Edition of the North Carolina State Building Code. Floor Slab Support: The proposed slab -on -grade floor systems can be adequately supported on suitable residual soils or on structural fill provided the site preparation and fill recommendations outlined herein are implemented. The floor slabs should be structurally isolated from the building foundations to allow independent movement. We recommend that at least six inches of granular material be placed immediately beneath the floor slabs to provide a capillary barrier and to increase the load distribution capabilities of the floor slab systems. For slab design purposes we recommend using a value of 120 pounds per cubic inch (PCI) for the modulus of soil subgrade reaction under typical loading conditions. However, lower modulus values should be utilized for design where concentrated/ point loads or heavy strip loads commonly associated with warehouse storage racks are anticipated. More detailed recommendations in this regard can be provided upon request once the final slab loading conditions are determined. Mechanically Stabilized Earth (MSE) Retaining Walls: The information in this report is not sufficient for, nor intended for, the design of mechanically stabilized earth (MSE) retaining walls. At a minimum, the design of MSE wall systems will need to consider the shear strengths and bearing capacities of the various on -site materials, as well as the settlement potential of the wall systems based on actual wall loads and extraneous surcharge loads (i.e., buildings, traffic, etc.). In addition to the internal stability of the individual wall systems, the complete retaining wall design will also need to consider the global stability of each wall location. Based on our experience with the strength properties required for the reinforced fill material on other local MSE designs, many of the onsite soils will not be suitable for this purpose. In our opinion, quarry screenings, processed fill, or other more granular (cohesionless) materials may need to be imported to construct the MSE retaining system. Structures and utilities should not be located in or within ten (10) feet of the reinforced soil zone. When this condition is unavoidable, the wall design engineer shall be consulted regarding applicable measures to ensure the performance of the wall system as a result of structures within or in close proximity to the reinforced soil zone. Non-MSE Retaining and Below -Grade Walls: The design of retaining and below -grade walls associated with the project should be designed to include, but not be limited to, lateral earth pressures from the backfill and supported soils, surcharge loads, earthquake loads, global stability, bearing capacity and other activities that Trinity Capital Advisers Eastgate 540 — Building 7, Knightdale, NC Mosher Project No. 23G-202 January 28, 2021 1 Page 5 could potentially affect the performance of the wall (i.e., settlement, structural penetrations, utility placement, etc.). The walls should be designed to resist the lateral components of surcharge loads occurring within a zone defined by a plane extending up at a 45-degree angle from the base of the retaining structure. If the walls are not drained, they should be designed to withstand full hydrostatic or seepage pressures. Alternatively, the buildup of hydrostatic or seepage pressures could be precluded by specifying a free -draining fill material immediately adjacent to below -grade walls, with a gravity -driven subdrainage system at the base of the walls. As an alternative to the free -draining fill material adjacent to the below -grade walls, a suitable synthetic drainage material may be used. Examples of suitable materials include MiraDrain or TerraDrain. All drainage board systems should be placed in accordance with the manufacturer's recommendations and connected to the perimeter drainage system. The following soil parameters can be used to compute the lateral earth pressures associated with a level backfill that consists of the onsite suitable soils (or similar soils). However, it should be noted that these lateral earth pressures only include the weight of the backfill, do not account for any applied surcharge loads that may be present behind the walls, and are not be used for design of MSE retaining walls. 1. Ko = 0.50 At -rest Earth Pressure Coefficient (Non -Yielding Walls) 2. Ka = 0.33 Active Earth Pressure Coefficient (Yielding Cantilevered Retaining Walls) 3. Kp=3.0 Passive Earth Pressure Coefficient (Resistance to Sliding Along Edge of Foundation) 4. y = 125 PCF Moist Soil Unit Weight (Pounds Per Cubic Foot) Sliding resistance on the base of concrete footings for below -grade walls can be calculated using the friction factor, Tan 8 = 0.35. Pavement Subgrades: Suitable residual soils or a properly compacted soil fill can provide adequate support for a pavement structure designed for appropriate subgrade strength and traffic characteristics. At a minimum, design and construction of the proposed pavement areas should be performed in accordance with applicable current North Carolina Depai talent of Transportation (NCDOT) standards. The requirements of the local municipal and/or county jurisdiction should also be considered in preparation of the final pavement design and construction documents. The pavement subgrade should be prepared in accordance with the site preparation recommendations provided in this report. The subgrade and the pavement surface should be sloped to provide positive surface drainage away from the pavement. Water within the base course layer can lead to softening of the subgrade and other problems that can result in accelerated deterioration of the pavement. Consequently, drainage measures such as swales and sub -drains may be appropriate along the up -gradient side of some pavement areas to reduce the potential for perched water migrating into the stone and subgrade layers underlying the pavements. Preliminary Pavement Design: Preliminary designs for a flexible (asphalt) pavement system were developed using estimated traffic volumes for passenger vehicles, delivery vehicles and operational vehicles. Overall, traffic counts for the proposed facility have been estimated based upon the type of development that is planned. For this preliminary design process, we assumed traffic volumes of about 2, 18-kip Equivalent Single Axle Trinity Capital Advisers Eastgate 540 — Building 7, Knightdale, NC Mosher Project No. 23G-202 January 28, 2021 1 Page 6 Load (ESALs) per work -day for light duty pavements and about 30 ESALs per work -day for heavy duty pavements. The existing undisturbed residual soils or a properly compacted soil fill can provide adequate support for pavement structures designed for appropriate subgrade strength and traffic characteristics. The pavement subgrade should be prepared in accordance with the site preparation recommendations provided in this report. The subgrade and the pavement surface should be sloped to provide positive surface drainage away from the pavement. Water within the base course layer can lead to softening of the subgrade and other problems that will result in accelerated deterioration of the pavement. A flexible (asphalt) pavement system was designed for the project using assumed traffic parameters. Based on our laboratory test data from an adjacent site, a CBR value of 6 was used in our preliminary design process. The asphalt pavement systems were designed in accordance with the American Association of State Highway Transportation Officials (AASHTO) "Structural Number" System using the laboratory test results, 10 and 20-year design lives, and a terminal serviceability (Pt) equal to 2.0. The recommended asphalt pavement sections are based on structural coefficients equal to 0.44 per inch for the surface and intermediate courses of asphalt and 0.14 per inch for the Aggregate Base Course (ABC) stone. The asphalt pavement system is referenced to the NCDOT Standard Specifications for Roads and Structures. This publication specifies material, asphalt mix design and placement requirements. The materials used in the pavement system should include an Aggregate Base Course (ABC) specified in section 520 of the NCDOT reference and asphalt concrete surface and intermediate courses (Type SF 9.5B, Type I-19.0B) specified in section 610. Preliminary asphalt pavement designs are tabulated in Table No. 1 below. Although these sections are fairly typical for similar local projects, the heavy-duty pavement section may not be adequate for all warehouse/distribution centers. Once the site layout is finalized and the end -users, including traffic load conditions, are identified, we request the opportunity to review these preliminary design recommendations and to modem as may be necessary. The standard duty pavement areas should be clearly designated and heavy trucks and equipment should not be allowed to access these areas. Trucks can be restricted from standard duty areas by overhead barriers, channelization or clearly designating restricted areas. A concrete pad should be constructed to accommodate dumpsters and the dumpster trucks. We recommend that a minimum 6 inch thick reinforced air entrained concrete pad be placed in front of the dumpster for use by the refuse truck during loading operations. The refuse collector should be consulted to confirm the size, thickness and layout of the concrete pad. Table No. 1— Asphalt Pavement Design Thickness Material Type 10 yr. Life Thickness (in.) 20 yr. Life Thickness (in.) Light Duty Pavement Areas Surface Course 2 2 Aggregate Base Course 6 8 Heavy Duty Pavement Areas Surface Course 1.5 1.5 Intermediate Course 2 2.5 Aggregate Base Course 8 9 Trinity Capital Advisers Eastgate 540 — Building 7, Knightdale, NC Mosher Project No. 23G-202 January 28, 2021 1 Page 7 Cut and Fill Slopes: Permanent cut slopes within residual soils and properly compacted fill slopes should be no steeper than 21/2(H):1(V) and should be properly seeded to minimize erosion. For maintenance purposes, the permanent slopes may need to be flattened to allow access to mowing equipment. Also, any fill placed in sloping areas should be properly benched into the adjacent soils. Temporary slopes in confined or open excavations should perform satisfactorily at inclinations of 1(H):1(V); however, if soft/saturated soil conditions are encountered within the excavations, then flatter slopes and/or shoring will be required. All excavations should conform to applicable OSHA regulations. The crest of all slopes should be maintained at least 10 feet horizontally from building limits and 5 feet from pavement limits. Appropriately sized ditches should run above and parallel to the crest of all permanent slopes to divert surface runoff away from the slope face. To aid in obtaining proper compaction on the slope face, the fill slopes should be overbuilt with properly compacted structural fill and then excavated back to the proposed grades. PROJECT CONSTRUCTION RECOMMENDATIONS Site Preparation: The proposed construction area should be stripped of all topsoil, organic material and other soft or unsuitable material. Upon completion of the above preparatory activities, the exposed subgrade in areas to receive fill should be proof rolled with a loaded dump truck or similar pneumatic -tired vehicle having a loaded weight of approximately 25 tons. Similarly, after excavation in cut areas, the exposed subgrade should also be proof rolled. Proof rolling operations should be performed under the observation of geotechnical personnel from our office. Areas that deflect, rut or pump during the proof rolling should be undercut to suitable soils and backfilled with properly compacted structural fill. As previously discussed, there are localized pockets of possible fill material and alluvial soils, as well as other localized areas of silty and/or clayey soils that will require undercutting. Some undercutting or bridging of soft/saturated soils in lower portions of the site may also be necessary prior to placing fill, particularly during wet months of the year. The extent and depth of the necessary undercutting should be determined in the field once the site conditions have been revealed during construction. Any areas that are pre -graded for construction should be positively sloped to facilitate surface drainage. In addition, these areas of the project site could be seeded as an extra precaution to protect the near -surface soils from inclement weather. Groundwater and Surface Water: Based on the soil borings and the porosity of the onsite materials, groundwater and "perched" groundwater conditions may be encountered in localized areas across the site. Such perched groundwater conditions would typically be expected during wetter, winter months of the year. Water flow from up gradient should be expected. Based on the data collected from the site, it does not appear that wide -spread permanent dewatering will be required beneath the building and/or pavements. However, some temporary and/or localized dewatering may be required within areas of former wet weather drainage features or while attempting to undercut any soft/saturated alluvial soils. The necessary dewatering could be achieved through the use of conduits (pipes), diversion trenches and/or filtered trench drains that gravity discharge to suitable outlet areas in accordance with applicable regulatory requirements. Should more significant groundwater/surface water management needs develop during construction, implementation of supplemental measures (e.g., pumping, etc.) may be required. Final grades adjacent to permanent structures should be positively sloped to promote surface water drainage away from the structures. Concentrated stormwater discharges (e.g., roof drains) should not discharge within 10 feet of structures without appropriate design measures to prevent erosion and discourage infiltration. Trinity Capital Advisers Eastgate 540 — Building 7, Knightdale, NC Mosher Project No. 23G-202 January 28, 2021 1 Page 8 Fill Material and Placement: Fill used for the project should be free of organic matter and debris with a low to moderate plasticity (Plasticity Index less than 30). Based on our visual observation of the soil samples and our experience on adjacent sites, the onsite sandy SILTs, silty SANDs, and clayey SANDs appear suitable for use as project fill. Due to the plasticity characteristics associated with the on -site clayey SANDs, silty CLAYs, and clayey SILTS, they are marginal for use as compacted fill, but can be used if handled properly. High plastic CLAYs (CH) and elastic SILTs (MH) may be utilized in deeper fill sections outside the building footprint, greater than 5 feet below final grades, provided they meet the recommended moisture constraints. The fill for general mass grading operations should exhibit a maximum dry density of at least 100 pounds per cubic foot, as determined by a Standard Proctor compaction test (ASTM D 698). Suitable on -site materials can be placed in loose layers up to 10 inches thick and should be compacted to at least 95 percent of its Standard Proctor maximum dry density. We recommend that moisture contents during placement be kept within 3 percent of the optimum water content. In addition, if soils encountered exhibit low maximum dry densities and have a high Plasticity Index (close to 30), a tighter moisture range may be necessary to achieve proper compaction. Special care should be taken while backfilling around utility pipes, utility trenches and around manholes, water valves, and storm drop inlets. For backfilling these areas, a hand tamper or walk -behind roller will be required. While using a hand tamper or walk -behind roller, the maximum lift thickness (loose) should not exceed 5 inches. While compacting adjacent to below -grade walls, heavy compaction equipment operated parallel to the long axis of the wall should maintain a minimum horizontal distance of at least 5 feet from the wall within the initial 5 feet of fill depth and an additional 1(H):1(V) above this level. Smaller manual/walk behind/remote- controlled compaction equipment should be used from the wall face to a distance of at least 5 feet from the wall to reduce the potential for structural damage resulting from heavier compaction equipment. During construction of retaining walls, heavier construction equipment (i.e., larger dozers, cranes and trackhoes, trucks, etc.) should not be operated within at least 10 feet of the wall for the initial 5 feet of fill depth and an additional 1(H):1(V) above this level. We recommend that field density tests be performed on the fill as it is being placed to verify that proper compaction is achieved. Based on our experience on nearby sites and on the water level readings taken at the time of boring some moisture modification (drying and/or wetting) of the onsite soils will likely be required during site grading. The type, extent and difficulty associated with obtaining the required moisture modification will be influenced by the soil plasticity and the weather conditions encountered during site grading. If site development takes place during the winter months there is a likelihood that chemical stabilization methods may be necessary in order to mitigate the effects of wet soil. Footing Observations: We recommend that the footing excavations be observed by experienced personnel from our office to verify that suitable soils are present at, and below, the proposed bearing elevation. If soft or unsuitable materials are encountered, they will likely need to be undercut and replaced with properly compacted select fill or lean concrete. Where undercutting is required, we recommend maintaining a minimum of 1:1 slope within the footing undercut. Bearing surfaces for foundations should not be disturbed or left exposed during inclement weather; saturation of the onsite soils can cause a loss of strength and increased compressibility. If construction occurs during inclement weather and concreting of the foundation is not possible at the time it is excavated, a layer of lean concrete should be placed on the bearing surface for protection. Also, concrete should not be placed on frozen subgrades. Trinity Capital Advisers Eastgate 540 — Building 7, Knightdale, NC Mosher Project No. 23G-202 January 28, 2021 1 Page 9 GENERAL CONSIDERATIONS The borings performed at this site represent the subsurface conditions at the location of the borings only. Due to the prevailing geology there can be changes in the subsurface conditions over relatively short distances that have not been detected by the borings. Consequently, there may be undisclosed subsurface conditions that require special treatment or additional preparation once these conditions are revealed during construction. Our conclusions and recommendations are based on the project description outlined above, on the data obtained from our field and laboratory testing program, and on our experience with previous projects within the area. Changes in the project or subsurface conditions encountered during construction may require modifications to our recommendations. We will require the opportunity to review our recommendations in light of any new information and make the desired changes. CLOSURE Mosher Engineering appreciates having had the opportunity to assist you during this phase of the project. If you have any questions concerning this report, please do not hesitate to contact our office. Respectfully, MOSHER ENGINEERING, INC. N.C. Firm License No. C-2512 Gabriel Hoskin, E.I. Staff Engineer Appendices -, f1 C�1g0 r : t ! Z z6zry. ' SEAL 039235 nti NEEQ!.�PQQ= istma N. Warr, P. !NA N Branch Manager ''""'' NC License No. 039235 APPENDICES APPENDIX A - Drawings No. 1 — Site Location Plan No. 2 — Boring Location Plan No. 3 & 4 - Generalized Subsurface Profiles APPENDIX B — Test Boring Records ■ Geotechnical Investigative Procedures ■ Key to Soil Classification Terms ■ Test Boring Records APPENDIX C — Laboratory Test Results ■ Summary of Laboratory Test Data APPENDIX D — Season High Water Level Results ■ Mitchell Environmental SHWT Report APPENDIX A Drawings No. 1 — Site Location Plan No. 2 — Boring Location Plan No. 3 & 4- Generalized Subsurface Profiles SITE LOCATION PLAN Eastgate 540 — Building 7 Raleigh, NC MOSHER ENGINEERING A Stevenson Consulting Affiliate Project No.: 23G-202 Date: 1/7/2021 Scale: AS NOTED Drawing No.: 1 I r.' -T ~T rrrTST W F.1 .I I. AT r L IL 1 .TLL s~L_ [ 1 C.C.F •IS {CCIE re .1[ s• aelf 1 Eastgate 540 — Building 7 Raleigh, NC �r�1}ssr�r.'r rrr}}w+-rr.rr'+li{{tt'.r+r�r�rl}-r�3.t���W r.��. rrr. rn . } _ f.T:SJTJC[TJfvSx vs�-AIJI"� '•• ' 6 M1r,lrf y�Ir Mia La la Miami...! - ma a �ac la...a wwrt ace arrye Ian rMiro no STY al RPM 'tra Y.flr ; �s Fan aro- t• a6f r w1 • SEW M.M 1111111L_1I1111JII f1I1IJ11IJ1111111111 i111111 +ea AUTO aPACFR _ 111111111 I1111LfU1i11111111f�111111I I111II�f 1IIIIIIII�IJylI_fLIII Approximate Boring Locations 285 280 275 270 265 4- c 0 .(t a) W 260 255 250 245 240 0 5:5 11.5 B-01 12 25 7 •-3 4 B-02 0.5 5.5 11.5 20 B-06 0.3 - 19 0.5 _ A 3.0 5.5 B-03 21.5 49 21.5 11.5 - 54 27.0 30:0 . B.T. 12 26.5 304.0.• B.T. - 10 21.5 3 3 2 4 6 25.0 B T. B-04 0.5 3.0 6.5 8.0 11.5 g - 6 3.0 B-05 0.3 3.0 8.0 %LL 8 i - 8 11.5 16.5 - 66 21.5 14 - 24 30.0 • 35 B.T. 25.0 - 11 - 6 -'24 • 19 - 34 B.T. 16.5 0. 3.0 B-07 B-09 13 15 - 28 -5 8.0 f6.5 19 0.5 10 3.0• 7 B-08 7 25.0 - 5 T. 25.0 5 S,T, 16.5 20.0 B.T. 2 - 4 - 11 0.7 3.0 5.5 13 10.0 14 B.T. - 17 - 13 a 17 Horizontal - Not To Scale MOSHER E GINEERING A Stevenson Consulting Affiliate LEGEND TOPSOIL 1/, SC ® CH rui CLAYEY SILT f SANDY SILT CLS SM SILTY CLAY FILL A.R. Auger Refusal B.T. Boring Terminated W.O.H. Weight of Hammer 24-Hr Water Level V 1-Hr Water Level Caved Depth Generalized Subsurface Profile Eastgate 540 - Building 7 Project Number: 23G-202 Date Drawn: 1/21/2021 Drawing No. 3 Right Side Values Represent Blow Counts (N-Values) 285 280 275 270 0 265 co a) w 260 255 250 245 0.5 3.0 11.5 - 34 15.0 B.T. B-11 B.T. 0.5 B-12 4 5.5 15 8.0.'. 16 10.0 B.T. 0.3 1.5 5.5 B-13 • •.' 0.3 3.0 - 5.5 10.0 B.T. B-14 11 13 l -6 10.0 B.T. B-15 B-16 0.5 3.0 4 15 j� 13 8.0 B-17 _ b 0.5 3.0 8 5.5 8.0 20.0 B.T. 51 - 59 20.0 B.T. Horizontal - Not To Scale ENGINEERING A Stevenson Consulting Affiliate LEGEND TOPSOIL SM ® MH FILL SANDY SILT %%% SILTY CLAY f CLAYEY SILT SC CLS A.R. Auger Refusal B.T. Boring Terminated W.O.H. Weight of Hammer 24-Hr Water Level V 1-Hr Water Level Caved Depth Generalized Subsurface Profile Eastgate 540 - Building 7 Project Number: 23G-202 Date Drawn: 1/21/2021 Drawing No. 4 Right Side Values Represent Blow Counts (N-Values) APPENDIX B Test Boring Records ■ Geotechnical Investigative Procedures ■ Key to Soil Classification Terms ■ Test Boring Records GEOTECHNICAL INVESTIGATIVE PROCEDURES FIELD Soil Test Borings: Soil test borings were drilled at the approximate locations shown on the Boring Location Plan (see Drawing No. 2, Appendix A). Soil sampling and penetration testing were performed for each boring in accordance with ASTM D 1586. The borings were advanced to their termination depths with a hollow -stem auger drilling method. At standard intervals, soil samples were obtained with a standard 1.4-inch (3.6cm) I.D., 2-inch (5.lcm) O.D., split -tube sampler. The sampler was first seated 6 inches (15.2cm) to penetrate any loose cuttings, then driven an additional 12 inches (30.5cm) with blows of a 140 pound (63.5kg) hammer falling 30 inches (76.2cm). The number of hammer blows required to drive the sampler the final 12 inches (30.5cm) was recorded and is designated the "Standard Penetration Resistance" (N-Value). The Standard Penetration Resistance, when properly evaluated, is an index to soil strength, density and ability to support foundations. The Test Boring Records for each boring, indicating the soil descriptions and Standard Penetration Resistances, are included in Appendix B of this report. Representative portions of each soil sample were placed in glass jars and taken to our laboratory. The samples were then examined by an engineer to verify the driller's field classifications. LABORATORY Moisture Content: The moisture content is the ratio, expressed as a percentage, of the weight of the water in a given mass of soil to the weight of the solid particles. These tests were conducted in accordance with ASTM Designation D 2216-66. The test results are presented on the attached sheets. Soil Plasticity Test (Atterberg Limits Test): Representative samples were selected for Atterberg Limits testing to determine the soil's plasticity characteristics. The Plasticity Index (PI) is representative of this characteristic and is bracketed by the Liquid Limit (LL) and the Plastic Limit (PL). The Liquid Limit is the moisture content at which the soil will flow as a heavy viscous fluid and is determined in accordance with ASTM D 423. The Plastic Limit is the moisture content at which the soil begins to lose its plasticity and is determined in accordance with ASTM D 424. The data obtained is presented on the attached sheets. Soils finer than the No. 200 Sieve (ASTM D 1140): In this test, the sample is dried and then washed over a standard No. 200 sieve. The percentage of soil, by weight, passing the sieve is the percentage of fines or portion of the sample in the silt and clay size range. The data obtained is presented on the attached sheets. KEY TO SOIL CLASSIFICATION TERMS Density and Consistency of Soils Correlation of Standard Penetration Test (SPT) Value (N) with Relative Density and Consistency Sand & Gravels SPT (N-Value) 0 to 4 5 to 10 11to30 31 to 50 Over 50 Relative Density Very Loose Loose Medium Dense Dense Very Dense Silts & Clays SPT (N-Value) 1 Consistency 0 to 2 Very Soft 3 to 4 Soft 5 to 8 Firm 9 to 15 Stiff 16 to 30 Very Stiff 31 to 50 Hard Over 50 Very Hard Modifiers The modifiers provide an estimate of the amount of silt, clay or sand size particles in the soil sample Content of Materials < 5% Trace 5% to 12% Little silt, little clay, little sand 12% to 30% Some sand, some clay, some silt 30% to 50% Silty, clayey, sandy Field Moisture Description Wet Moist Dry Visibly wet; requires drying to attain optimum moisture At or near optimum moisture Requires addition of water to attain optimum moisture DEPTH (FT.) 0 0 0 5 5 5 11.5 21.5 27.0 30.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 280.0 0 BLOWS/FT 10 20 30 40 60 80 100 TOPSOIL 6" 77/- 4 279.5 274.5 • • X 12 X 25 V / RESIDUUM: Medium dense, tan to light gray, clayey SAND with little root hairs, moist • • 11 X 7 3 RESIDUUM: Loose to medium dense, orange to orange with brown mottling, silty SAND (SM), moist to wet • : Y. - 268.5 • RESIDUUM: Very loose, orange with brown mottling, silty SAND, wet .:: ... • .. ............ . . .::• :%.: ....*:.: ::•.:...:**•::: .... :•.... **.....*•:•'. • .. 258.5 • X 4 X 49 • RESIDUUM: Dense, tan and black mottled, silty SAND, moist ::'• i• — '....*: ... .... . . **:. ••••:•'. •• . 253.0 • X 12 RESIDUUM: Medium dense, gray, silty SAND, moist to wet . •• .. ,. ••• 250.0 Boring terminated at 30.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-01 DATE(s) DRILLED 1/7/2021 to 1/7/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0 0 0 5 5 5 11.5 21.5 26.5 30.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 280.0 0 BLOWS/FT 10 20 30 40 60 80 100 TOPSOIL 6" 47/- 279.5 / RESIDUUM: Very loose to medium dense, brown to tan to orange with white mottling, clayey SAND (SC), moist - with root fragments and root hairs from 3.5 to 5 feet 4. 274.5 • • X 4 20 X RESIDUUM: Very loose to medium dense, red and tan mottled to gray with white .. ... • X 19 mottling, silty SAND, moist •• .1..: - with trace of quartz gravel from 6 to 7.5 feet - moist to wet from 8.5 to 10 feet .. •• .1..: • 72 • ... ••• 268.5 RESIDUUM: Very loose, tan, silty coarse .:.: SAND, moist ..*.• • .• . - wet from 13.5 to 15 feet .... • 4 .1..: .:•'• . .. . .. • .:•'• .1..: .1..: .:•'• • • • • X 5 ..••••:.• . .. '..• '...: 258.5 RESIDUUM: Very dense, dark gray with tan, silty SAND, moist •••• v. •• .1..: :.• • X 54 •••.• .'• 253.5 RESIDUUM: Loose, dark gray, silty fine SAND, moist to wet • '.: 250.0 • X 10 Boring terminated 30.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-02 DATE(s) DRILLED 1/7/2021 to 1/7/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.5 3.0 5.5 11.5 21.5 25.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 269.0 0 BLOWS/FT 10 20 30 40 60 80 100 TOPSOIL 6" 268.5 266.0 • • X_ 1 — X 3 SZ 7 ,'... • RESIDUUM: Very loose, tan, silty SAND, wet RESIDUUM: Soft, gray and brown mottled, Fat CLAY with organics, moist r— 263.5 • • 3 X X 2 RESIDUUM: Very loose, brown, micaceous silty fine SAND, moist •: 257.5 • A RESIDUUM: Soft to firm, brown to orange and tan mottled, micaceous sandy SILT, moist : 247.5 • X6 • X 14 RESIDUUM: Medium dense, orange and tan mottled, silty SAND, moist 244.0 Boring terminated at 25 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-03 DATE(s) DRILLED 1/7/2021 to 1/7/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.5 3.0 6.5 8.0 11.5 16.5 21.5 30.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 272.0 0 BLOWS/FT 10 20 30 40 60 80 100 TOPSOIL 6" '"'' '" 271.5 269.0 • 5 g X �'•X RESIDUUM: Loose, tan, clayey SAND, moist RESIDUUM: Loose, tan and orange mottled, silty coarse SAND (SM), moist :• 265.5 • • X 6 X 7 RESIDUUM: Loose, tan, silty coarse SAND, moist :': •' 264.0 RESIDUUM: Loose, tan to brown, silty coarse to medium SAND, moist 260.5 • X 8 RESIDUUM: Loose, brown, silty fine SAND, moist 255.5 • X 66 RESIDUUM: Very dense, tan, silty coarse SAND, moist :•:z.::: 250.5 • X 24 RESIDUUM: Medium dense to dense, brown silty fine to medium SAND, moist 242.0 • X 35 Boring terminated at 30 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-04 DATE(s) DRILLED 1/10/2021 to 1/10/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0 0 0 3 3 0 8 0 11.5 25.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 269.0 0 BLOWS/FT 10 20 30 40 60 80 100 .A7.• ., • • X 8 X 11 X 11 6 V TOPSOIL 4" / V 268.7 266.0 RESIDUUM: Firm, red and brown mottled, silty CLAY with roots and root hairs, moist RESIDUUM: Stiff, tan and red mottled, clayey SILT with some sand and roots, moist 261.0 • • RESIDUUM: Firm, tan with white mottling, clayey SILT with coarse sand, moist 257.5 • X 24 X 19 X 34 RESIDUUM: Medium dense to dense, brown to tan, silty SAND, moist . ... .. ...• :••• ::'• :••• ....*::,..... • • '... ..* : : i..' • .: ; .' • . :** .:.: :*•• .: 244.0 • • Boring terminated at 25.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-05 DATE(s) DRILLED 1/10/2021 to 1/10/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.3 3.0 11.5 16.5 25.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 276.0 0 BLOWS/FT 10 20 30 40 60 80 100 • • 10 X 14 V -\TOPSOIL 4" / jij A 275.7 273.0 RESIDUUM: Stiff, tan with orange mottling, silty CLAY with coarse sand and little roots, moist RESIDUUM: Loose to medium dense, Jor orange with tan mottling, clayey SAND, moist j j 1 / • • • 264.5 259.5 • • 15 8 • X 28 X ' X 5 RESIDUUM: Medium dense, tan, silty SAND, moist • RESIDUUM: Firm, orange and tan mottled to brown with black mottling, clayey SILT, moist 251.0 • Boring terminated at 25.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-06 DATE(s) DRILLED 1/10/2021 to 1/10/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.5 3.0 8.0 16.5 25.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 276.0 0 BLOWS/FT 10 20 30 40 60 80 100 TOPSOIL 6" ��� %/,l %//`%% ��� 275.5 �� 273.0 • • X 8 13 J RESIDUUM: Loose, tan with orange mottling, clayey coarse SAND with little organics, moist RESIDUUM: Medium dense, orange to gray, clayey SAND, moist %• ''• . ' 268.0 • • X 19 X 10 X ' X ' X 5 RESIDUUM: Firm to stiff, red with white mottling, clayey SILT, moist 259.5 • • RESIDUUM: Firm, brown with tan and red mottling, clayey SILT with little sand, wet 251.0 • Boring terminated at 25.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-07 DATE(s) DRILLED 1/10/2021 to 1/10/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.5 3.0 16.5 20.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 268.0 0 BLOWS/FT 10 20 30 40 60 80 100 TOPSOIL 6" .`, `'•. .`` • • 2 4 -\ i 267.5 265.0 UPLAND DEPOSIT: Very loose, dark gray, silty SAND with gravel, moist RESIDUUM: Soft to very stiff, red and tan mottled to brown with red mottling to orange to brown, Elastic SILT with sand (MH), moist • • X 11 X 17 • X 13251.5 X 17 • RESIDUUM: Medium dense, tan, brown, and black mottled, silty SAND, moist to wet 248.0 Boring terminated at 20.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-08 DATE(s) DRILLED 1/10/2021 to 1/10/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.7 3.0 5.5 10.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 274.0 0 BLOWS/FT 10 20 30 40 60 80 100 TOPSOIL 8" "' •`` - 273.3 • • X ' 7 RESIDUUM: Firm, tan, sandy CLAY, moist 271.0 RESIDUUM: Loose, orange with brown and tan mottling, clayey SAND with trace root hairs, moist / • 268.5 • • 13 X 14 RESIDUUM: Medium dense, orange with tan mottling, silty SAND, moist . 264.0 Boring terminated at 10.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-09 DATE(s) DRILLED 1/10/2021 to 1/10/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.5 3.0 11.5 15.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 276.0 0 BLOWS/FT 10 20 30 40 60 80 100 TOPSOIL 6" • • X 8 X 9 X 11 X ' 34 J: A 275.5 273.0 RESIDUUM: Firm, red with tan mottling, silty CLAY with some sand, moist RESIDUUM: Stiff, orange -red to tan, clayey SILT with sand, moist 264.5 • • • RESIDUUM: Dense, tan to brown, silty SAND, moist . :' 261.0 Boring terminated at 15.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-10 DATE(s) DRILLED 1/10/2021 to 1/10/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.5 3.0 5.5 11.5 15.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 280.0 0 BLOWS/FT 10 20 30 40 60 80 100 TOPSOIL 6" ', `. • `` • • X 9 X 21 X 9 X 8 X 13 V -\ /— 279.5 277.0 RESIDUUM: Stiff, tan, sandy Elastic SILT (MH), moist RESIDUUM: Medium dense, orange, silty coarse SAND, moist 274.5 • • RESIDUUM: Loose, orange to orange with white mottling, clayey coarse SAND, moist 2' A 268.5 • RESIDUUM: Medium dense, tan to brown, silty coarse SAND, moist • 265.0 Boring terminated at 15.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-11 DATE(s) DRILLED 1/7/2021 to 1/7/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.5 5.5 8.0 10.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 268.0 0 BLOWS/FT 10 20 30 40 60 80 100 TOPSOIL 6" 267.5 262.5 • • X X X 4 8 15 16 / RESIDUUM: Very loose to loose, gray with tan mottling, clayey SAND, moist • • RESIDUUM: Medium dense, orange with gray to dark gray mottling, silty SAND with trace organics, moist • ::. 260.0 RESIDUUM: Medium dense, white with orange mottling, clayey coarse SAND, moist 258.0 Boring terminated 10.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-12 DATE(s) DRILLED 1/7/2021 to 1/7/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.3 1.5 5.5 10.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 267.0 0 BLOWS/FT 10 20 30 40 60 80 100 7. • .` 266.7 265.5 261.5 • • 9 X ' X 9 X 3 -\TOPSOIL 4" / POSSIBLE FILL: Stiff, tan, silty CLAY with sand, moist . . . RESIDUUM: Firm, brown and tan mottled, sandy SILT, moist • • RESIDUUM: Very loose to loose, brown and tan mottled to pink with gray mottling, silty SAND, moist . • 257.0 Boring terminated at 10.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-13 DATE(s) DRILLED 1/10/2021 to 1/10/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.3 3.0 5.5 10.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 266.0 0 BLOWS/FT 10 20 30 40 60 80 100 • ,` • • X 11 X 13'l///� X 6 X 6 -\TOPSOIL 4" / r'. 7263.0 265.7 RESIDUUM: Medium dense, tan, clayey coarse SAND with roots, moist RESIDUUM: Firm, tan with orange mottling, sandy CLAY, moist j j� 260.5 • • RESIDUUM: Loose, tan, silty SAND, moist . 256.0 Boring terminated at 10.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-14 DATE(s) DRILLED 1/10/2021 to 1/10/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.5 3.0 10.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 269.0 0 BLOWS/FT 10 20 30 40 60 80 100 6" ./�268.5 • • 8 X 8 -\TOPSOIL / /266.0 259.0 RESIDUUM: Firm, orange to tan, silty CLAY with little sand, moist RESIDUUM: Firm to stiff, orange with gray and red mottling to tan and gray mottled, sandy SILT, moist • • X 12 X 12 Boring terminated at 10.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-15 DATE(s) DRILLED 1/7/2021 to 1/7/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.5 3.0 8.0 20.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 274.0 0 BLOWS/FT 10 20 30 40 60 80 100 6"/ '• • • X 4 15 V -\TOPSOIL : —.�273.5 ' ' 271.0 RESIDUUM: Very loose, tan, silty SAND, wet RESIDUUM: Medium dense, orange and red mottled, clayey SAND, moist j' . 266.0 • • X 13 6 RESIDUUM: Very loose to loose, orange to tan to gray, silty SAND, moist - moist to wet from 11.5 to 16.5 feet - wet from 16.5 to 20 feet • • • `::.``? •• 254.0 • X 8 • 4 X Boring terminated at 20.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-16 DATE(s) DRILLED 1/7/2021 to 1/7/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering DEPTH (FT.) 0.0 0.5 3.0 5.5 8.0 20.0 DESCRIPTION ELEVATION • STANDARD PENETRATION TEST (FT.) 265.0 0 BLOWS/FT 10 20 30 40 60 80 100 TOPSOIL 6" 47/264.5 %� :22; 262.0 • • X 4 X 6 9 X 11 RESIDUUM: Very loose, tan, clayey SAND, moist RESIDUUM: Loose, orange, silty SAND, moist 259.5 • • RESIDUUM: Loose, tan, clayey SAND, moist V. 257.0 RESIDUUM: Medium dense to very dense, tan to gray, silty SAND, moist • • i. 245.0 • X 51 • X 59 Boring terminated at 20.0 feet CONTRACTOR: Carolina Drilling Company DRILL RIG: CME 45 Track AUGER PROBE RECORD AUGER PROBE NUMBER B-17 DATE(s) DRILLED 1/10/2021 to 1/10/2021 PROJECT NUMBER 23G-202 PROJECT Eastgate 540 - Building 7 PAGE 1 OF 1 Mosher Engineering APPENDIX C Laboratory Test Results ■ Summary of Laboratory Test Data SUMMARY OF LABORATORY TEST DATA Eastgate 540 — Building 7 MEI Project No. 23G-202 Boring Number Sample Depth (Feet) Sample Type* USCS Classi- fication Natural Moisture Content % Atterberg Limits** L.L. P.L. P.I. % Finer No. 200 Maximum Dry Density (Pc0 Optimum Moisture Content (%) In -Place Unit Weight (psf) Internal Friction Angle (degrees) Wet Dry Total Eff. B-1 B-1 1-2.5 SS 3.5-5 SS 13.1 14.4 B-1 6-7.5 SS SM 37.2 55 44 11 28.9 B-1 8.5-10 SS 36.0 B-2 3.5-5 SS SC 16.5 42 22 20 36.3 B-4 3.5-5 SS SM 27.1 74 41 33 45.7 B-7 6.5-7.5 SS 18.7 B-7 8.5-10 SS 51.2 B-8 3.5-5 SS MH 62.5 83 63 20 76.8 B-11 1-2.5 SS MH 27.8 71 34 37 54.5 B-16 B-16 3.5-5 SS 8.5-10 SS 14.2 25.5 B-17 3.5-5 SS 24.9 B-17 8.5-10 SS 16.5 * SS=Split Spoon Sample (ASTM D-1586) ** L.L. = Liquid Limit UD=Undisturbed Sample (ASTM D-1587) P.L. = Plastic Limit HA= Hand Auger Cuttings P.I. = Plasticity Index Mosher Engineering, Inc. • 409-B Rogers View Court • Raleigh, NC 27610 (0) 919-856-1550 • (F) 919-856-1555 APPENDIX D Seasonal High Water Table Results ■ Mitchell Environmental SHWT Report Mitchell Environmental, P.A. January 25, 2021 Mrs. Christina Warr, PE Mosher Engineering 409-B Rogers View Court Raleigh, North Carolina 27610 Re: Seasonal High Water Table Investigation for Eastgate 540 Spectrum Drive, Knightdale, North Carolina Mrs. Warr: At your request, Mitchell Environmental, PA, has completed an investigation of seasonal high water table (SHWT) depth for the Eastgate 540 project in Knightdale. At your direction, this investigation was limited in scope to two proposed stormwater BMPs on the site. The borings were drilled, and soil samples were collected by your team on January 7 and 10, 2021. Our lab investigation of the collected samples was completed on January 12, 2021. Depth to SHWT was determined using accepted soil science practices. Soil samples collected by your team were evaluated for redoximorphic features (often mistakenly called "mottles') with a chrome of 2 or less, as evidence of the SHWT. True mottles that meet this color criterion that are the result of parent material coloration are ignored, as these are not indicative of the seasonal high water table. A total of two soil borings were advanced in the locations proposed for stormwater BMPs. The soil borings were advanced to a depth of 20 feet below the soil surface. Chrome 2 redoximorphic features indicative of the SHWT were observed in boring B-16, but not observed in boring B-17. Boring I❑ B-16 B-17 SHWT Depth' feet Perched at 3-5; Otherwise >20' >20 'Depth below existing soil surface Thank you for the opportunity to assist you with this seasonal high water table investigation for this site. Do not hesitate to call me if you have any questions regarding this investigation or if you need any additional information. Sincerely, Scott Mitchell, PE, LSS President /.,zr,` 2192-4 CA�k SEAL l` .kp27458 ..tatiOcc 1501 Lakestone Village Lane, Suite 205 Fuquay-Varina, North Carolina 27526 919-669-0329 • TEO 31. 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