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PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township, Gloucester County, New Jersey July 1, 2020 Prepared for: Heron South II, LLC P.O. Box 585 Bridgeport, New Jersey 08014 Prepared by: Marathon Engineering & Environmental Services, Inc. 3 Killdeer Court, Suite 302 Swedesboro, New Jersey 08085 Phone: (856) 241-9705 Cert. of Authorization: 24GA27995700 _________________________________ Jesse Dougherty, P.E. Professional Engineer New Jersey License No. 24GE05008100

Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

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Page 1: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

PUR 313.01

Stormwater Compliance Statement

For

Performance Foods Expansion Pureland Industrial Park

Sheet 28.01, Block 2803, Lot 12

Logan Township, Gloucester County, New Jersey

July 1, 2020

Prepared for: Heron South II, LLC

P.O. Box 585 Bridgeport, New Jersey 08014

Prepared by:

Marathon Engineering & Environmental Services, Inc. 3 Killdeer Court, Suite 302

Swedesboro, New Jersey 08085 Phone: (856) 241-9705

Cert. of Authorization: 24GA27995700

_________________________________

Jesse Dougherty, P.E. Professional Engineer New Jersey License No. 24GE05008100

Page 2: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

ALL DOCUMENTS PREPARED BY MARATHON ENGINEERING & ENVIRONMENTAL SERVICES ARE INSTRUMENTS OF SERVICE WITH RESPECT TO THE PROJECT. THEY ARE NOT INTENDED OR REPRESENTED TO BE SUITABLE FOR REUSE BY THE OWNER OR OTHERS ON EXTENSIONS OF THE PROJECT OR ON ANY OTHER PROJECT. ANY REUSE WITHOUT WRITTEN VERIFICATION OR ADAPTATION BY MARATHON ENGINEERING & ENVIRONMENTAL SERVICES FOR THE SPECIFIC PURPOSE INTENDED WILL BE AT OWNER’S SOLE RISK AND WITHOUT LIABILITY OR LEGAL EXPOSURE TO MARATHON ENGINEERING & ENVIRONMENTAL SERVICES; AND OWNER SHALL INDEMNIFY AND HOLD HARMLESS MARATHON ENGINEERING & ENVIRONMENTAL SERVICES FROM ALL CLAIMS, DAMAGES, LOSSES AND EXPENSES ARISING OUT OF OR RESULTING THEREFROM.

Page 3: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

Performance Foods Expansion Table of Contents Narrative and Summary

Figure Maps Figure 1 – Logan Township Tax Map

Figure 2 – Logan Township Zoning Map

Figure 3 – USGS Quadrangle Map

Figure 4 – FEMA FIRM Map

Figure 5 – Soils Map

Appendixes Appendix A Stormwater Management Report –

Multi-Foods, Logan Township, Gloucester County, Last Revised September 23, 1999, Prepared by Vincent Mariani, PE, Marathon Engineering & Environmental Services, Inc.

Page 4: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

PERFORMANCE FOODS EXPANSION STORMWATER MANAGEMENT REPORT

MARATHON ENGINEERING & ENVIRONMENTAL SERVICES, INC. PAGE 1 OF 2

1.0 PROJECT DESCRIPTION

The applicant, Heron South II, LLC, is proposing to construct a 56,005 square feet dry storage expansion, a 6,905 square feet forklift charging and maintenance area, and a 8,007 square feet office area expansion to the existing 165,808 square foot facility with associated site improvements in the Pureland Industrial Park in Logan Township, Gloucester County, New Jersey. The project site address is 301 Heron Drive and is situated between the Amazon Fulfillment Center and Heron Drive. Stormwater from the proposed development will be conveyed through an existing drainage system into the Stormwater Management Basins # 1 an # 2 on site that have been previously designed and approved to accommodate the runoff generated from this project area and its anticipated future development. The site is part of the previously approved commercial and industrial complex known as the Pureland Industrial Park.

2.0 DESIGN CRITERIA

The overall site known as Block 2803, Lot 12, located on Heron Drive. The overall stormwater management system design on this was designed to include the potential expansion of the facility. As previously approved, Basins # 1 and # 2 on site, takes into account the runoff generated by the impervious area that will be created by the proposed development. The previously approved stormwater management design is described in the “Stormwater Report for Multi-Foods, Logan Township, Gloucester County, New Jersey” prepared by Marathon Engineering & Environmental Services, last revised September 23, 1999, this report has been included in this report and is located in the appendix of this report.

3.0 IMPERVIOUS AREA AND RUNOFF QUANTITY

As stated above, the increase in impervious surfaces associated with the proposed development was accounted for in the previously approved design and is well below the total impervious area assumed to generate runoff discharging to the previously constructed basins for the overall site. The basins affected by the development is known as Basin # 1 and Basin # 2 (see Drainage Maps). The basin original design contributing area accounted for not only approved 160,000 square foot building, but also future expansion areas of 210,000 sf with associated parking and truck loading areas on site. The table below summarizes the total impervious area accounted for and approved with the design of Basin # 1 and Basin # 2, from the Block 2803, Lot 12 parcel area contributing to the basin:

Table 1 - Basin 1

ContributingDrainageArea (Ac.)

TotalImpervious

Area(Ac.)

TotalPervious

Area(Ac.)

Design 9.17 5.37 3.79

Proposed 9.17 4.24 4.92

Page 5: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

PERFORMANCE FOODS EXPANSION STORMWATER MANAGEMENT REPORT

MARATHON ENGINEERING & ENVIRONMENTAL SERVICES, INC. PAGE 2 OF 2

Table 2 - Basin 2

Contributing

Drainage Area (Ac.)

Total Impervious

Area (Ac.)

Total Pervious

Area (Ac.)

Design 16.59 5.37 3.79

Proposed 16.59 4.24 4.92

Since the impervious area created by the proposed improvements on Lot 12 is less than the total impervious area accounted for in the previously approved design, the proposed development is in compliance with the previous approvals for the subject property. The increase in runoff generated by the proposed development will be accommodated by the existing basins, while leaving room to accommodate future site improvements.

4.0 SOIL EROSION AND SEDIMENT CONTROL Temporary soil erosion and sediment control for this project was designed in accordance with the State Soil Erosion and Sediment Control Standards in New Jersey.

5.0 STORMWATER CONVEYANCE SYSTEM DESIGN The Rational method was used for the storm inlet and pipe design. The stormwater conveyance system was designed in accordance with Logan Township Land Use and Development ordinance requirements. The proposed storm sewer pipes are designed to convey the 25-year storm. A minimum pipe diameter of 18 inches is utilized for site drainage and pipes are laid at slopes to provide minimum velocity of 4 ft/sec. The crowns of the pipes have been matched when the pipe size increases.

6.0 CONCLUSION As described above, the Stormwater Management and conveyance systems on site, that have been previously designed and approved have been designed to accommodate the proposed site improvements while still maintaining additional capacity for potential future site improvements. requirements as described in previous Logan Township Planning Board Resolutions. The runoff generated by the increase in impervious area created by the proposed development was accounted for in the previously approved stormwater management system design and will be accommodated by the existing stormwater management basins on site with no modifications necessary to the existing outlet structures, for each basin or to the existing conduit outlet protection installed on site.

Page 6: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

Figure Maps

Page 7: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

ph (856) 241-9705fax (856) 241-9709

3 Killdeer CourtSuite 302SwedesboroNew Jersey 08085

Certificate of Authorization #24GA27995700

N

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CREATED ON 03/17/2020, LAST MODIFIED ON 07/02/202003/17/2020, LAST MODIFIED ON 07/02/2020, LAST MODIFIED ON 07/02/202007/02/2020
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TAX MAP FIG. 1
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PERFORMANCE FOODS EXPANSION
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ph (856) 241-9705fax (856) 241-9709

3 Killdeer CourtSuite 302SwedesboroNew Jersey 08085

Certificate of Authorization #24GA27995700

N

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ZONING MAP FIG. 2
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PERFORMANCE FOODS EXPANSION
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REFERENCE: ZONING MAP OF TOWNSHIP OF LOGAN
Page 9: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

ph (856) 241-9705fax (856) 241-9709

3 Killdeer CourtSuite 302SwedesboroNew Jersey 08085

Certificate of Authorization #24GA27995700

N

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U.S.G.S. QUAD MAP FIG. 3
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Page 10: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

ph (856) 241-9705fax (856) 241-9709

3 Killdeer CourtSuite 302SwedesboroNew Jersey 08085

Certificate of Authorization #24GA27995700

N

ph (856) 241-9705fax (856) 241-9709

3 Killdeer CourtSuite 302SwedesboroNew Jersey 08085

Certificate of Authorization #24GA27995700

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FLOOD MAP FIG. 4
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PERFORMANCE FOODS EXPANSION
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PROPERTY IS LOCATED IN FLOOD ZONE AE AND X AS SCALED FROM FEMA FLOOD INSURANCE MAP FOR THE TOWNSHIP OF LOGAN, GLOUCESTER COUNTY, NEW JERSEY, COMMUNITY PANEL NO. 34015C0044F AND 34015C0063F, EFFECTIVE DATE AUGUST 17, 2016.
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CREATED ON 03/16/2020, LAST MODIFIED ON 07/02/202003/16/2020, LAST MODIFIED ON 07/02/2020, LAST MODIFIED ON 07/02/202007/02/2020
Page 11: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

ph (856) 241-9705fax (856) 241-9709

3 Killdeer CourtSuite 302SwedesboroNew Jersey 08085

Certificate of Authorization #24GA27995700

N

ph (856) 241-9705fax (856) 241-9709

3 Killdeer CourtSuite 302SwedesboroNew Jersey 08085

Certificate of Authorization #24GA27995700

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Page 12: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

Appendix

Page 13: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

PUR 099.21

Stormwater Management Report

For

Multi-Foods

Logan Township, Gloucester County, New Jersey

April 8,1999

Revised April 15, 1999 Revised June 10, 1999 Revised June 28, 1999 Revised July 06, 1999

Revised September 23, 1999

Prepared for: Center Square Builders

510 Heron Drive, PO Box 585 Bridgeport, New Jersey 08104

Prepared by: Marathon Engineering &

Environmental Services, Inc. 510 Heron Drive, Suite111

Swedesboro, New Jersey 08085 856-241-9705

Vincent R. Mariani Professional Engineer Lic. No. 22196

Page 14: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

Table of Contents Summary ......................................................................................................................... 2 Design Reference Data ................................................................................................ 3-9 Storm Sewer Calculations ............................................................................................. 10 Swale Calculations ........................................................................................................ 11 Rip Rap Calculations ................................................................................................ 12-13 Runoff Curve Numbers & Time of Concentration Calculations ................................. 14-20 Basin #1 Calculations ............................................................................................... 21-84 Basin #2 Calculations ............................................................................................. 85-141 Trap Efficiency Calculations ........................................................................................ 142 Runoff Comparison & Spillway Design ................................................................. 143-144 Downstream Stability Analysis .................................................................................... 145 Drainage Map

Summary Proposed is a 160,000 s.f. Building with associated loading areas and parking areas. The drainage design makes allowance for a future 210,000 s.f. expansion with associated loading areas and building areas. The approximate configuration of the expansion is shown on the drainage map. The roof drains onto splash blocks located on the ground, and then flow overland. Drainage is to two Water Quality Basins (Basin #1 and Basin #2). Both water quality basins are designed to accommodate the increase in impervious area as a result of the proposed expansion. Basin #1 will accept runoff from drainage areas 1 thru 5, both overland and through storm sewer piping. The runoff from drainage area 6 will flow overland directly into the wetlands. Basin #2 will accept runoff from drainage areas 7 thru 13, both overland and through storm sewer piping. Basin #2 was previously approved by NJDEP as part of Waterfront Development Permit # 0809-89-0038.3, issued 12/15/95.

Page 15: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

PUR 099.21 10/11/99

DRAINAGE ACERAGE

AREA REQ'D ACT. % REQ'D ACT. % REQ'D ACT. % REQ'D ACT. %

C.F. C.F. C.F. C.F.

DA-1 14.03 109,473 - 72.0% 76,448 - 41.4% 109,616 - 42.2% 127,830 - 80.2%

DA-2 17.14 42,507 - 28.0% 108,130 - 58.6% 150,325 - 57.8% 31,532 - 19.8%

TOTAL 31.17 151,980 204,940 100.0% 184,578 204,940 100.0% 259,941 267,948 100.0% 159,362 204,940 100.0%

where:

DA-1 Drainage Area #1 (Multifoods - Block 44 Lot 7)

DA-2 Drainage Area #2 (Block 44 Lot 7.13 & Block 44 Lot 7.14)

PRESENT Volume for present Multifoods construction and no improvements to Lots 7.13 & 7.14

PHASE 1 Volume for present Multifoods construction and 50% development of Lots 7.13 & 7.14)

PHASE 2 Volume for full development of Multifoods & full development of Lots 7.13 & 7.14

PHASE 3 Volume for full development of Multifoods & no development of Lots 7.13 & 7.14

PHASE 1 PHASE 2 PHASE 3

BASIN VOLUME (CF)

TABLE 1

PRESENT

Page 16: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

PUR 099.21 10/11/99

ACERAGE COEFF. EQUIV. RELAT. %

IMPERV. IMPERV.

DA-1 10.13 0.25 2.53 6.39 72.0%

14.03 3.90 0.99 3.86

DA-2 (1) 9.93 0.25 2.48 2.48 28.0%

9.93 - - -

TOTAL 23.96 100.0%

(1) Natural drainage area of Lots 7.13 & 7.14 to Basin

ACERAGE COEFF. EQUIV. RELAT. %

IMPERV. IMPERV.

DA-1 10.13 0.25 2.53 6.39 41.4%

14.03 3.90 0.99 3.86

DA-2 10.71 0.25 2.68 9.04 58.6%

17.14 6.43 0.99 6.37

TOTAL 31.17 100.0%

ACERAGE COEFF. EQUIV. RELAT. %

IMPERV. IMPERV.

DA-1 5.17 0.25 1.29 10.06 42.2%

14.03 8.86 0.99 8.77

DA-2 4.28 0.25 1.07 13.80 57.8%

17.14 12.86 0.99 12.73

TOTAL 31.17 100.0%

PRESENT

PHASE 1

PHASE 2

ALLOCATION OF BASIN VOLUME

TABLE 2

Page 17: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

PUR 099.21 10/11/99

ACERAGE COEFF. EQUIV. RELAT. %

IMPERV. IMPERV.

DA-1 5.17 0.25 1.29 10.06 80.2%

14.03 8.86 0.99 8.77

DA-2 (1) 9.93 0.25 2.48 2.48 19.8%

9.93 - 0.99 -

TOTAL 23.96 100.0%

(1) Natural drainage area of Lots 7.13 & 7.14 to Basin

PHASE 3

Page 18: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

RUNOFF CURVE NUMBERS

Project: MULTI-FOODS By ESJ

Location: LOGAN TOWNSHIP Date 07/01/20

Condition: PROPOSED Chkd

Sub-Area Number Cover Description C Area %Cover

DA-1 Impervious Surfaces 0.99 1.13 76.35%

Grassed Areas 0.25 0.35 23.65%

TOTALS: 0.82 1.48 100.00%

DA-2 Impervious Surfaces 0.99 0.67 72.83%

Grassed Areas 0.25 0.25 27.17%

TOTALS: 0.79 0.92 100.00%

DA-3 Impervious Surfaces 0.99 0.52 88.14%

Grassed Areas 0.25 0.07 11.86%

TOTALS: 0.90 0.59 100.00%

DA-4 Impervious Surfaces 0.99 0.31 30.39%

Grassed Areas 0.25 0.71 69.61%

TOTALS: 0.47 1.02 100.00%

DA-5 Impervious Surfaces 0.99 0.48 27.59%

Grassed Areas 0.25 1.26 72.41%

TOTALS: 0.45 1.74 100.00%

DA-6 Impervious Surfaces 0.99 2.15 69.58%

Grassed Areas 0.25 0.94 30.42%

TOTALS: 0.76 3.09 100.00%

DA-7 Impervious Surfaces 0.99 1.64 62.36%

Grassed Areas 0.25 0.99 37.64%

TOTALS: 0.71 2.63 100.00%

DA-8 Impervious Surfaces 0.99 0.51 96.23%

Grassed Areas 0.25 0.02 3.77%

TOTALS: 0.96 0.53 100.00%

DA-9 Impervious Surfaces 0.99 1.47 84.97%

Grassed Areas 0.25 0.26 15.03%

TOTALS: 0.88 1.73 100.00%

DA-10 Impervious Surfaces 0.99 0.80 95.24%

Grassed Areas 0.25 0.04 4.76%

TOTALS: 0.95 0.84 100.00%

Page 19: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

RUNOFF CURVE NUMBERS

Project: MULTI-FOODS By ESJ

Location: LOGAN TOWNSHIP Date 03/29/99

Condition: PROPOSED Chkd

Sub-Area Number Cover Description C Area %Cover

DA-11 Impervious Surfaces 0.99 0.55 91.67%

Grassed Areas 0.25 0.05 8.33%

TOTALS: 0.93 0.60 100.00%

DA-12 Impervious Surfaces 0.99 0.95 100.00%

Grassed Areas 0.25

TOTALS: 0.99 0.95 100.00%

DA-13 Impervious Surfaces 0.99 1.73 14.08%

Grassed Areas 0.25 10.56 85.92%

TOTALS: 0.35 12.29 100.00%

DA-14A Impervious Surfaces 0.99 2.13 89.47%

Grassed Areas 0.25 0.25 10.53%

TOTALS: 0.91 2.38 100.00%

DA-14B Impervious Surfaces 0.99 2.13 89.47%

Grassed Areas 0.25 0.25 10.53%

TOTALS: 0.91 2.38 100.00%

Page 20: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

RUNOFF CURVE NUMBERS

Project: MULTI-FOODS By ESJ

Location: LOGAN TOWNSHIP Date 03/29/99

Condition: AREAS TO BASINS Chkd

Sub-Area Number Cover Description CN Area %Cover

Basin #1 Impervious Surfaces 98.00 3.11 54.09%

Grassed Areas 61.00 2.64 45.91%

TOTALS: 81.01 5.75 100.00%

Basin #2 Impervious Surfaces 98.00 11.90 48.93%

Grassed Areas 61.00 12.42 51.07%

TOTALS: 79.10 24.32 100.00%

Overall Area Impervious Surfaces 98.00 15.01 49.92%

Grassed Areas 61.00 15.06 50.08%

TOTALS: 79.47 30.07 100.00%

Page 21: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

MARATHON ENGINEERING & ENVIRONMENTAL SERVICES, INC.STORM SEWER COMPUTATION SHEET

Municipality:LOGAN TOWNSHIP

Subdivision or Locality:MULTI-FOODS Sheet Of

Computed By: ESJ Date: ###### Checked By: Pipe Material:

Revised By: Date: "n" Factor: #### (RCP) 25 Year Storm

0.010 (PEP)

CHECKS

Inc. Equiv. Total Pipe Pipe Flow Pipe Ground Elev. Invert Elev. Upper Lower Inlet

Area Area Area Tc I Q Slope Dia. V Length Time Cap. Upper Lower Upper Lower End End Pipe Flow

Location From To Ac C Ac Ac min in/hr CFS ft/ft in FPS ft min. CFS End End End End Class Class Cap. (cfs)

DA-1 I-1 I-2 1.48 0.82 1.21 1.21 6.0 7.70 9.29 0.0080 21 5.89 219 0.62 14.17 17.93 17.93 14.72 12.97 III III ok 9.29

DA-2 I-2 I-3 0.92 0.79 0.73 1.93 6.6 7.50 14.49 0.0045 24 4.83 201 0.69 15.18 18.41 18.41 12.72 11.82 III III ok 5.44

DA-3 I-3 FES-1 0.59 0.90 0.53 2.46 7.3 7.44 18.33 0.0069 24 5.98 46 0.13 18.79 17.92 17.92 11.82 11.50 III III ok 3.96

DA-4 Basin #1 1.02 0.47 0.48 0.48 6.0 7.70 3.73 3.73 **

DA-5 Basin #1 1.74 0.45 0.79 0.79 6.0 7.70 6.08 6.08 **

DA-6 Overland 3.09 0.76 2.36 2.36 6.0 7.70 18.20 18.20 +

DA-7 I-4 I-5 2.63 0.71 1.87 1.87 6.0 7.70 14.41 0.0045 24 4.83 67 0.23 15.18 17.02 16.77 14.04 13.74 IV IV ok 14.41 ++

DA-8 I-5 I-6 0.53 0.96 0.51 2.38 6.2 7.66 18.24 0.0065 24 5.81 92 0.26 18.25 16.77 16.77 13.32 12.72 IV III ok 3.91

DA-9 I-6 I-7 1.73 0.88 1.52 3.90 6.5 7.61 29.69 0.0055 30 6.20 63 0.17 30.42 16.77 16.77 12.22 11.87 III III ok 11.57

DA-10 I-7 I-8 0.84 0.95 0.80 4.70 6.7 7.60 35.75 0.0030 36 5.17 100 0.32 36.53 16.77 16.77 11.37 11.07 III III ok 6.10

DA-11 I-8 I-9 0.60 0.93 0.56 5.26 7.0 7.50 39.45 0.0040 36 5.97 100 0.28 42.18 16.77 16.77 11.07 10.67 III III ok 4.18

DA-15 I-9 I-10 2.45 0.89 2.18 7.44 7.3 7.50 55.81 0.0030 42 7.45 100 0.22 71.64 16.77 18.60 10.17 9.87 ok ok ok 16.36 *

DA-12 I-10 MH-3 0.95 0.99 0.94 8.38 7.5 7.50 62.87 0.0030 42 7.45 200 0.45 71.64 18.60 14.50 9.87 9.27 ok ok ok 7.05 *

MH-3 MH-4 62.87 0.0025 48 7.43 230 0.52 93.37 14.50 13.50 8.52 7.95 ok ok ok *

MH-4 FES-2 145.00 0.0024 60 8.36 10 0.02 164.13 13.50 7.17 7.15 III III ok *

DA-13 Basin #2 12.29 0.35 4.35 4.35 9.0 7.05 30.69 30.69 **

OCS-8 FES-3 42.84 0.0020 36 5.49 152 0.46 38.78 9.50 9.50 4.80 4.50 ok ok ok *

OCS-9 FES-4 0.45 0.0075 15 5.93 75 0.21 7.27 13.50 11.00 8.56 8.00 ok ok ok *

DA-14A PIPE 12 MH-3 2.38 0.91 2.17 2.17 6.0 7.70 16.68 0.0050 36 8.67 100 0.19 61.31 17.50 14.50 10.27 9.77 ok ok ok 16.68 *

DA-14B PIPE 13 MH-4 2.38 0.91 2.17 2.17 6.0 7.70 16.68 0.0050 36 8.67 100 0.19 61.31 14.50 13.50 9.45 8.95 ok ok ok 16.68

* Use PEP Pipe

** These areas flow overland into the basins

+ This area flows overland directly into the wetlands

++ Use 30" x 19" Elliptical Concrete Pipe (24" Round used in calculations - equivalent round diameter)

Page 22: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

STANDARD FOR GRASS WATERWAY COMPARISON

A B C

Velocity (fps) 1.05 2.15 1.47

Water Depth (ft.) 0.12 0.69 0.38

Elevation (ft.)

Cross-Section

Residential Site Improvement Standards. The area in question is stabilized with perennial erosion

resistant vegetation. The limiting values for this soil type are 2.1 fps @ 1.7 % slope. Since

conservative assumptions are made, off-site stability has been demonstrated.

sheet, and is a very conservative assumption. An n value of .050 was used. This corresponds to the

value for channels not maintained and brush uncut, clean bottom, brush on sides from the

These values have been calculated from the Civil Tools Program. A discharge of 5.12 CFS was

used. This corresponds to the discharge from FES-3 for the 10-year storm. A slope of .0225 was

used. This corresponds to the average slope of the waterway taken from the profile on the detail

PUR 099.21

Page 23: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

25 Year Storm Date: 07/01/20

Structure: FES-1 Page:

DESIGN CRITERIA: APRON DIMENSIONS:

Design Storm 25 yr Length 25.67 Ft

Flow Rate, Q= 18.33 CFS Width @ Culvert 6.00 Ft

Culvert Horiz Dim.= 2.00 Ft Width @ End 31.67 Ft

Tailwater Depth= 0.40 Ft D(50) calc. 12 in

Filter Fabric Used? Y (Y/N) D(50) to be used 12 in

D(50) min. 6 in Thickness 23 in

SCOUR HOLE DIMENSIONS: SCOUR HOLE DIMENSIONS:

Culvert Vert Dim.= 2.00 Ft Culvert Vert Dim.= 2.00 Ft

Depth of Hole 1.00 Ft Depth of Hole 2.00 Ft

Length of Bottom 6.00 Ft Length of Bottom 6.00 Ft

Width of Bottom 4.00 Ft Width of Bottom 4.00 Ft

Length of Scour Hole 12.00 Ft Length of Scour Hole 18.00 Ft

Width of Scour Hole 10.00 Ft Width of Scour Hole 16.00 Ft

D(50) calc. 7 in D(50) calc. 5 in

D(50) to be used 7 in D(50) to be used 6 in

Thickness 14 in Thickness 12 in

Structure: FES-2

DESIGN CRITERIA: APRON DIMENSIONS:

Design Storm 25 yr Length 58.34 Ft

Flow Rate, Q= 145.00 CFS * Width @ Culvert 15.00 Ft

Culvert Horiz Dim.= 5.00 Ft Width @ End 73.34 Ft

Tailwater Depth= 1.92 Ft ** D(50) calc. 11 in

Filter Fabric Used? Y (Y/N) D(50) to be used 11 in

D(50) min. 8 in Thickness 22 in

SCOUR HOLE DIMENSIONS: SCOUR HOLE DIMENSIONS:

Culvert Vert Dim.= 5.00 Ft Culvert Vert Dim.= 5.00 Ft

Depth of Hole 2.50 Ft Depth of Hole 5.00 Ft

Length of Bottom 15.00 Ft Length of Bottom 15.00 Ft

Width of Bottom 10.00 Ft Width of Bottom 10.00 Ft

Length of Scour Hole 30.00 Ft Length of Scour Hole 45.00 Ft

Width of Scour Hole 25.00 Ft Width of Scour Hole 40.00 Ft

D(50) calc. 7 in D(50) calc. 5 in

D(50) to be used 8 in D(50) to be used 8 in

Thickness 16 in Thickness 16 in

NOTE: Use boxed dimensions.

NEW JERSEY SOIL EROSION & SEDIMENT CONTROL STANDARDS

FOR

CONDUIT OUTLET PROTECTION

* This value is based upon the actual outflow of the pipe.

** This value is based upon the maximum water elevation in the swale for the 25-year storm.

Page 24: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

25 Year Storm Date: 07/01/20

Structure: FES-3 Page:

DESIGN CRITERIA: APRON DIMENSIONS:

Design Storm 25 yr Length 35.84 Ft

Flow Rate, Q= 42.84 CFS * Width @ Culvert 9.00 Ft

Culvert Horiz Dim.= 3.00 Ft Width @ End 44.84 Ft

Tailwater Depth= 0.60 Ft D(50) calc. 14 in

Filter Fabric Used? Y (Y/N) D(50) to be used 14 in

D(50) min. 6 in Thickness 28 in

SCOUR HOLE DIMENSIONS: SCOUR HOLE DIMENSIONS:

Culvert Vert Dim.= 3.00 Ft Culvert Vert Dim.= 3.00 Ft

Depth of Hole 1.50 Ft Depth of Hole 3.00 Ft

Length of Bottom 9.00 Ft Length of Bottom 9.00 Ft

Width of Bottom 6.00 Ft Width of Bottom 6.00 Ft

Length of Scour Hole 18.00 Ft Length of Scour Hole 27.00 Ft

Width of Scour Hole 15.00 Ft Width of Scour Hole 24.00 Ft

D(50) calc. 9 in D(50) calc. 6 in

D(50) to be used 9 in D(50) to be used 6 in

Thickness 17 in Thickness 12 in

25 Year Storm Date: 07/01/20

Structure: FES-4 Page:

DESIGN CRITERIA: APRON DIMENSIONS:

Design Storm 25 yr Length 9.33 Ft

Flow Rate, Q= 0.45 CFS Width @ Culvert 3.75 Ft

Culvert Horiz Dim.= 1.25 Ft Width @ End 13.08 Ft

Tailwater Depth= 0.25 Ft D(50) calc. 0 in

Filter Fabric Used? Y (Y/N) D(50) to be used 4 in

D(50) min. 4 in Thickness 8 in

SCOUR HOLE DIMENSIONS: SCOUR HOLE DIMENSIONS:

Culvert Vert Dim.= 1.25 Ft Culvert Vert Dim.= 1.25 Ft

Depth of Hole 0.63 Ft Depth of Hole 1.25 Ft

Length of Bottom 3.75 Ft Length of Bottom 3.75 Ft

Width of Bottom 2.50 Ft Width of Bottom 2.50 Ft

Length of Scour Hole 7.50 Ft Length of Scour Hole 11.25 Ft

Width of Scour Hole 6.25 Ft Width of Scour Hole 10.00 Ft

D(50) calc. 0 in D(50) calc. 0 in

D(50) to be used 4 in D(50) to be used 4 in

Thickness 8 in Thickness 8 in

NOTE: Use boxed dimensions.

* Even though the present outflow is 8.70 CFS, the basin was approved for 42.84 CFS, and that

is the design that will be used.

FOR

CONDUIT OUTLET PROTECTION

NEW JERSEY SOIL EROSION & SEDIMENT CONTROL STANDARDS

Page 25: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

Project: By: ESJ

Location: Date: 6/9/1999

Conditions: Checked:

Tc or Tt Subarea: Date:

SHEET FLOW:

Segment ID............................ 1

Surface Description............. Grass

Manning's n-value.............. 0.027

Flow Length, L (< 300'),......ft 300.00

2-Yr 24-Hr rainfall, P2,......in 3.40

Land slope, s,.........................ft/ft 0.0133

Tt,............................................hr 0.11 + 0.00 + 0.00 = 0.11

SHALLOW CONCENTRATED FLOW:

Segment ID.......................... 2

Surface Description............ Grass

Flow Length, L......................ft 157.48

Watercourse slope, s,...........ft/ft 0.0150

Average Veloctiy, V,.............fps 1.98

Tt.............................................hr 0.02 + 0.00 + 0.00 = 0.02

CHANNEL FLOW:

Segment ID..........................

Cross Sectional Area, A,.....sf

Wetted Perimeter, Pw.........ft

Hydraulic Radius, r..............ft

Channel Slope, s...................ft/ft

Manning's n-value...............

Velocity, V.............................fps

Flow Length, L.......................ft

Tt,...........................................hr 0.00 + 0.00 + 0.00 = 0.00

WATERSHED OR SUBAREA Tc OR Tt (HRS) = 0.14

(MIN) = 8.16

Logan Township

Pre-development

Basin #1

TR-55 WORKSHEET 3

TIME OF CONCENTRATION (Tc) OR TRAVEL TIME (Tt)

Multifoods

Page 26: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

TR-55 WORKSHEET 3

TIME OF CONCENTRATION (Tc) OR TRAVEL TIME (Tt)

Project: By: ESJ

Location: Date: 6/9/1999

Conditions: Checked:

Tc or Tt Subarea: Date:

SHEET FLOW:

Segment ID............................ 1

Surface Description............. Grass

Manning's n-value.............. 0.027

Flow Length, L (< 300'),......ft 300.00

2-Yr 24-Hr rainfall, P2,......in 3.40

Land slope, s,.........................ft/ft 0.0083

Tt,............................................hr 0.14 + 0.00 + 0.00 = 0.14

SHALLOW CONCENTRATED FLOW:

Segment ID.......................... 2

Surface Description............ Grass

Flow Length, L......................ft 1145.46

Watercourse slope, s,...........ft/ft 0.0130

Average Veloctiy, V,.............fps 1.84

Tt.............................................hr 0.17 + 0.00 + 0.00 = 0.17

CHANNEL FLOW:

Segment ID..........................

Cross Sectional Area, A,.....sf

Wetted Perimeter, Pw.........ft

Hydraulic Radius, r..............ft

Channel Slope, s...................ft/ft

Manning's n-value...............

Velocity, V.............................fps

Flow Length, L.......................ft

Tt,...........................................hr 0.00 + 0.00 + 0.00 = 0.00

WATERSHED OR SUBAREA Tc OR Tt (HRS) = 0.31

(MIN) = 18.62

Basin #2

Logan Township

Multifoods

Pre-development

Page 27: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

Project: By: ESJ

Location: Date: 4/5/1999

Conditions: Checked:

Tc or Tt Subarea: Date:

SHEET FLOW:

Segment ID............................

Surface Description............. Roof

Manning's n-value.............. 0.016

Flow Length, L (< 300'),......ft 150.00

2-Yr 24-Hr rainfall, P2,......in 3.40

Land slope, s,.........................ft/ft 0.0833

Tt,............................................hr 0.02 + 0.00 + 0.00 = 0.02

SHALLOW CONCENTRATED FLOW:

Segment ID..........................

Surface Description............

Flow Length, L......................ft

Watercourse slope, s,...........ft/ft

Average Veloctiy, V,.............fps

Tt.............................................hr 0.00 + 0.00 + 0.00 = 0.00

CHANNEL FLOW: *

Segment ID.......................... Grass Piping

Cross Sectional Area, A,.....sf

Wetted Perimeter, Pw.........ft

Hydraulic Radius, r..............ft

Channel Slope, s...................ft/ft

Manning's n-value...............

Velocity, V.............................fps 2.00

Flow Length, L.......................ft 301.00

Tt,...........................................hr 0.04 + 0.03 + 0.00 = 0.07

+ WATERSHED OR SUBAREA Tc OR Tt (HRS) = 0.09

(MIN) = 5.17

* The flow through the grass was taken at 2 fps over the total length from the building to inlet I-1.

For the flow time through the piping, see Storm Sewer Computation Sheet.

+ Use a minimum of 7.5 minutes, or .13 hrs. See Storm Sewer Computation Sheet.

Logan Township

Post-development

Basin #1

Marathon Engineering & Environmental Services Inc.TR-55 WORKSHEET 3

TIME OF CONCENTRATION (Tc) OR TRAVEL TIME (Tt)

Multi-Foods

Page 28: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

Project: By: ESJ

Location: Date: 4/5/1999

Conditions: Checked:

Tc or Tt Subarea: Date:

SHEET FLOW:

Segment ID............................

Surface Description............. Pavement

Manning's n-value.............. 0.016

Flow Length, L (< 300'),......ft 300.00

2-Yr 24-Hr rainfall, P2,......in 3.40

Land slope, s,.........................ft/ft 0.0225

Tt,............................................hr 0.06 + 0.00 + 0.00 = 0.06

SHALLOW CONCENTRATED FLOW:

Segment ID..........................

Surface Description............ Pavement

Flow Length, L......................ft 10.00

Watercourse slope, s,...........ft/ft 0.0210

Average Veloctiy, V,.............fps 2.34

Tt.............................................hr 0.00 + 0.00 + 0.00 = 0.00

CHANNEL FLOW: Piping

Segment ID..........................

Cross Sectional Area, A,.....sf

Wetted Perimeter, Pw.........ft

Hydraulic Radius, r..............ft

Channel Slope, s...................ft/ft

Manning's n-value...............

Velocity, V.............................fps

Flow Length, L.......................ft

Tt,...........................................hr 0.04 + 0.00 + 0.00 = 0.04

WATERSHED OR SUBAREA Tc OR Tt (HRS) = 0.10

(MIN) = 6.25

Logan Township

Post-development

Basin #2

Marathon Engineering & Environmental Services Inc.TR-55 WORKSHEET 3

TIME OF CONCENTRATION (Tc) OR TRAVEL TIME (Tt)

Multi-Foods

Page 29: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

Trap Efficiency Calculations

C = Total Capacity of Basin #1 needed for Trap Efficiency

I = Average Annual Surface Runoff Ac./Ft.

Disturbed Areas:

Basin #1 = 6.07 Ac.

Median Curve (Curve 4.4-1)

70% Trap Efficiency

C / I =

Average Annual Service Runoff = 18" (Figure 4.4-1)

I = (18"/12") * 6.07 =

C = 9.11 * 0.035 =

9.11 Ac./Ft.

0.32 Ac./Ft.= 13,881.48 Cu./Ft.

Basin Capacity at elevation 12.0 = 22,318 Cu./Ft.

0.035

The proposed outlet control structure has a 4" orifice. This orifice is at

elevation 11.50. A riser on the orifice will be constructed up to elevation

12.00 to ensure trap efficiency.

PUR 099.21

Page 30: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

Trap Efficiency Calculations

C = Total Capacity of Basin #2 needed for Trap Efficiency

I = Average Annual Surface Runoff Ac./Ft.

Disturbed Areas:

Basin #2 = 16.60 Ac.

Median Curve (Curve 4.4-1)

70% Trap Efficiency

C / I =

Average Annual Service Runoff = 18" (Figure 4.4-1)

I = (18"/12") * 16.60 = 24.90 Ac./Ft.

C = 24.90 * 0.035 = 0.87 Ac./Ft.= 37,962.54 Cu./Ft.

Basin Capacity at elevation 8.0 = 77,727 Cu./Ft.

0.035

The proposed outlet control structure has a 4" orifice. This orifice is at

elevation 7.00. A riser on the orifice will be constructed up to elevation 8.00

to ensure trap efficiency.

PUR 099.21

Page 31: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

PRE AND POST DEVELOP RUNOFF COMPARISON

Basin

Q AREA Q AREA Q AREA Q AREA

1 4.59 6.20 0.26 5.75 11.90 6.20 0.40 5.75

2 16.27 29.49 0.53 26.48 42.42 29.49 10.12 26.48

2-year storm 10-year storm

Pre-develop flow Post-develop flow Pre-develop flow Post-develop flow

(basin outlet)(to basin

discharge point)

(basin outlet) (to basin

discharge point)

PUR 099.21

Page 32: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

NOVEMBER 8, 1999 STABILITY OF FES-4 PUR 099.21

Scour hole 8' L x 6.5' 'W *

Extended Rip-rap pad 32' L x 6.5' 'W **

Maximum Discharge 25-year storm .447 CFS ***

0.447 CFS / 6.5 ' W (rip-rap)

0.069 CFS/LF (of width of rip-rap)

* Based upon the design size of scour hole below FES-4.

** Based upon width of scour hole and length equals distance

needed to reach center of stream.

*** Based upon maximum discharge from Basin #1 during the

25-year storm.

Page 33: Stormwater Compliance Statement · PUR 313.01 Stormwater Compliance Statement For Performance Foods Expansion Pureland Industrial Park Sheet 28.01, Block 2803, Lot 12 Logan Township,

ENV

IRO

NM

ENTA

L SE

RV

ICES

, IN

C.

MA

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BLOCK 44, LOT 7.08
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STATE MUTUAL LIFE ASSURANCE CO.
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(60' ROW)
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(300' ROW)
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HERON DRIVE
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ROUTE I-295
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BLOCK 44, LOT 19.01
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TH/NEBC L.P.
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BLOCK 44, LOT 7.13
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FIRST ALLMERICA FINANCIAL LIFE INSURANCE CO.
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DISTRIBUTION
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OFFICE
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GENERAL
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PROPOSED
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165,808 S.F.
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OFFICE
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BLOCK 44, LOT 7.14
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FIRST ALLMERICA FINANCIAL LIFE INSURANCE CO.
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SIZE 10" W/ FILTER FABRIC
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AND 20" THK., MEAN RIP RAP
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2-42" RCP
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183 LF 8" PVC @ 0.0048
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8" PVC
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STATION
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PUMP
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12"W
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RIP RAP BED TO BE 10' WIDE
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EMERGENCY OVERFLOW
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EL. 16.50
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FM,W
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18" RCP
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18" RCP
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21" RCP
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36" RCP
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30" RCP
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12"W
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12"W
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185 LF 8" PVC @ 0.0033
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250 LF 8" PVC @ 0.0033
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INV. 16.11
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TW. 20.89
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EX. "E" INLET
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42" RCP
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108 LF 8" PVC @ 0.0033
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18" RCP
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18" RCP
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18" RCP
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12" W
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400 LF 8" PVC @ 0.0033
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200 LF 8" PVC @ 0.0033
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18" RCP
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15" RCP
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300 LF 8" PVC @ 0.0040
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400 LF 8" PVC @ 0.0040
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12" W
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20 LF 8" PVC
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@ 0.0040 CAPPED
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15" RCP
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24" RCP
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400 LF 8" PVC @ 0.0060
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SAN MH RIM 23.22 INV 4.94 IN S-8 INV 4.85 IN S-5 INV 4.92 OUT
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SAN MH RIM 20.72 INV 5.72 IN INV 5.70 OUT
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SAN MH
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RIM 21.13
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INV 6.41 IN
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INV 6.40 OUT
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SAN MH
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RIM 24.02
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INV 7.08 IN
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INV 7.05 OUT
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SAN MH
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RIM 23.66
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INV 7.86 IN
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INV 7.84 OUT
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SAN MH
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RIM 24.26
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INV 9.16 IN (STUB)
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INV 9.09 IN
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INV 9.06 OUT
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SAN MH
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RIM 21.53
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INV 10.32 IN
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INV 10.33 OUT
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SAN MH
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RIM 21.13
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INV 11.81 IN
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INV 11.84 OUT
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8" W
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8" W
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8" W
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8" W
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SEE NOTES
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METER PIT
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8" W
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6" W
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2" W
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2" W
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2" W
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2" W
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DBL B INLET TC 20.23 GR 19.58 INV(IN) 14.93 INV(OUT) 12.58
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HW TOP 17.13 INV 12.03
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2-42" RCP
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HW TOP 20.85 INV 15.75
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B INLET TC 21.45 GR 20.77 INV 16.97
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B INLET I-11 TC 20.96 GR 20.30 INV(18") 16.80 INV(21") 16.45
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ELECT.
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WV
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B INLET TC 23.56 GR 22.90 INV 18.30
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B INLET TC 23.43 GR 22.76 INV 18.06
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B INLET TC 23.10 GR 22.43 INV 19.83
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B INLET TC 23.13 GR 22.46 INV(IN) 19.56 INV(OUT) 19.36
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WV
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WV
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ELECT.
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ELECT.
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WV
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WV
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VALVES BY NEW
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JERSEY AMERICAN
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8" W
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GAS
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GAS
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GAS
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PLUG
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6" W
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6" W
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6" W
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6" W
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6" W
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FIRE HYDRANT
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(TYPICAL)
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6" W
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REVISIONS:
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APPROVED:
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DATE:
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DWN BY:
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SCALE:
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PH (609) 241-9705 FAX (609) 241-9709
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SWEDESBORO, NEW JERSEY 08085
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510 HERON DRIVE, SUITE 111
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PROFESSIONAL ENGINEER N.J. LIC. NO.
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DRAINAGE MAP
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LOGAN TOWNSHIP
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GLOUCESTER COUNTY, NEW JERSEY
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1"=160'
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04/05/99
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ESJ
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PUR 099.21
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MULTI-FOODS
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VINCENT R. MARIANI
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22196
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FUTURE PARKING
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TRAILER PARKING
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FUTURE TRACTOR
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PROPOSED EXPANSION
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106,650 SF
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104,160 SF
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PROPOSED EXPANSION
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BASIN FLOW PATH
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INLET AREA BORDER
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BASIN AREA BORDER
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LEGEND
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REVISED PER TRAFFIC ENGINEER'S LETTER
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05/05/99
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1
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ESJ
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05/26/99
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2
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REVISED PER CENTER SQUARE BUILDERS
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ESJ
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VRM
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PER TOWNSHIP ENGINEER & FIRE MARSHALL
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06/23/99
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3
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ESJ
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VRM
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VRM
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07/06/99
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4
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REVISED FOR SOIL CONSERVATION DISTRICT
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ESJ
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VRM
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13.50
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BASIN #1
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BORING #2
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BORING #1
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CLEAR & GRUB
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BORING #4
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BOTTOM = 11.50
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BORING #4
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D
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D
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20
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18
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20.01BC
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20.90BC
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23.37BC
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23.68BC
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BASIN #2
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19.35
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19.35
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19.55
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19.73
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20.00
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22.80TC
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22.80TC
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FF = 22.00
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FF = 22.00
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20.70
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20.10
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20.10
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20.70
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18.75
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19.05
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17.95
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17.65
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19.05
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18.75
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17.07
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17.07
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17.97
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17.97
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17.97
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17.07
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25.15TC
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21.00
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21.33
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17.67
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20.75
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17.07
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17.47
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21.33
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20.83
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20.75
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22.00
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21.61
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21.88TC
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20.82TC
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21.19TC
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21.40TC
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20.57
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21.40TC
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21.48
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21.25TC
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21.25TC
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21.19TC
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20.35TC
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20.28TC
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20.35TC
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20.74TC
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20.82TC
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20.74TC
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20.01TC
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19.84TC
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19.84TC
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19.25TC
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19.18TC
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19.25TC
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19.59
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20.28TC
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20.35TC
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20.35TC
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20.09
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20.59TC
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20.09
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20.59TC
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18.86
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19.60TC
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19.10
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19.41TC
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DEPRESSED CURB
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19.83TC
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19.91
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19.72TC
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19.80
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18.87
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19.37TC
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19.18TC
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19.57TC
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19.18TC
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19.99TC
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20.19TC
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18.94TC
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19.07TC
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18.57
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19.33TC
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18.94TC
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19.95TC
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19.75TC
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19.45
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20.94
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19.25TC
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19.35TC
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18.85
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20.27
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20.45TC
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BOTTOM = 7.00
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22.00TW
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20.00BW
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19.73BW
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19.73TW
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9.75
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17.67BC
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18.17TC
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17.67BC
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18.17TC
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17.07BC
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17.57TC
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16.86
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17.67
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17.67
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21.00
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17.67
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21.33
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23.00
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17.07
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17.07
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MATCH EXISTING
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MATCH EXISTING
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20.37
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20.27
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21.05TC
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20.55BC
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21.28TC
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21.47TC
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20.97BC
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22.00
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21.88TC
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21.88
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19.20
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17.18
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17.48
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E
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E
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1.02 Ac.
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DA-4
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0.92 Ac.
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DA-2
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0.59 Ac.
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DA-3
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1.73 Ac.
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DA-9
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3.09 Ac.
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DA-6
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0.84 Ac.
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DA-10
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0.60 Ac.
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DA-11
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1.39 Ac.
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DA-1
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12.29 Ac.
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DA-13
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2.15 Ac.
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DA-5
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DA-7
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2.62 Ac.
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0.53 Ac.
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DA-8
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FLOW
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PATH
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BASIN #1
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BASIN #2
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PATH
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FLOW
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DA-12
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0.95 Ac.
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2.38 Ac.
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DA-14A
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DA-14B
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2.38 Ac.
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DA-15
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2.45 Ac.