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HomeMy WebLinkAbout20110582 Ver 1_Report_20110620BMP CALCULATIONS, DESIGN, and SUPPORTING INFORMATION for the 20 1 10 5 8 INTERMODAL ETHANOL TERMINAL HEALING SPRINGS, NORTH CAROLINA Prepared for: JT RUSSELL AND SONS, INC f--. Jtl-,1\? f y Zvi? Prepared by: PATRICK BLANDFORD, PE HDR Engineering of the Carolinas, Inc Charlotte NC (704) 338-6746 A. GRANSUER DICK, PE Chambers Engineering, PA Albemarle, NC (704) 984-6427 June 2011 Permit Number: (to be provided by DWQ) Drainage Area Number: X.(o Atx_t#r,3 Bioretention Operation and Maintenance Agreement KVAI-D I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important operation and maintenance procedures: - Immediately after the bioretention cell is established, the plants will be watered twice weekly if needed until the plants become established (commonly six weeks). - Snow, mulch or any other material will NEVER be piled on the surface of the bioretention cell. - Heavy equipment will NEVER be driven over the bioretention cell. - Special care will be taken to prevent sediment from entering the bioretention cell. - Once a year, a soil test of the soil media will be conducted. After the bioretention cell is established, I will inspect it once a month and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potential problems: How I will remediate the problem: The entire BMP Trash/ debris is resent. Remove the trash/ debris. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to bioretention cell erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. The inlet device: pipe, The pipe is clogged (if Unclog the pipe. Dispose of the stone verge or swale applicable). sediment off-site. The pipe is cracked or Replace the pipe. otherwise damaged (if applicable). Erosion is occurring in the Regrade the swale if necessary to swale (if applicable). smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. Stone verge is clogged or Remove sediment and clogged covered in sediment (if stone and replace with clean stone. applicable). Form SW401-Bioretention O&M-Rev.3 Page 1 of 4 BMP element: Potential problems: How I will remediate the problem: The pretreatment area Flow is bypassing Regrade if necessary to route all pretreatment area and/or flow to the pretreatment area. gullies have formed. Restabilize the area after grading. Sediment has accumulated to Search for the source of the a depth greater than three sediment and remedy the problem if inches. possible. Remove the sediment and restabilize the pretreatment area. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. The bioretention cell: Best professional practices Prune according to best professional vegetation show that pruning is needed practices. to maintain optimal plant health. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessary. Tree stakes/wires are present Remove tree stake/ wires (which six months after planting. can kill the tree if not removed). The bioretention cell: Mulch is breaking down or Spot mulch if there are only random soils and mulch has floated away. void areas. Replace whole mulch layer if necessary. Remove the remaining much and replace with triple shredded hard wood mulch at a maximum depth of three inches. Soils and/or mulch are Determine the extent of the clogging clogged with sediment. - remove and replace either just the top layers or the entire media as needed. Dispose of the spoil in an appropriate off-site location. Use triple shredded hard wood mulch at a maximum depth of three inches. Search for the source of the sediment and remedy the problem if possible. An annual soil test shows that Dolomitic lime shall be applied as pH has dropped or heavy recommended per the soil test and metals have accumulated in toxic soils shall be removed, the soil media. disposed of properly and replaced with new planting media. Form SW401-Bioretention O&M-Rev.3 Page 2 of 4 L ;r BMP element: Potential problems: How I will remediate the problem: The underdrain system Clogging has occurred. Wash out the underdrain system. (if applicable) The drop inlet Clogging has occurred. Clean out the drop inlet. Dispose of the sediment off-site. The drop inlet is damaged Repair or replace the drop inlet. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. Form SW401-Bioretention O&M-Rev.3 Page 3 of 4 Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:Healing Springs Ethanol Terminal BMP drainage area number: 4` -+ CAA (- `>'A+Z-) *-X-t"5.'S teA'D Print name:A. James Russell Title:Secretarv/ Treasurer Address: 1721 Us Hwv 52. Albemarle. NC 28001 Phone: 704-982-2225 Signature: Lf`:' a Date: Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, 1 1 a h IZ TU,rQ?e--u? V`t- , a Notary Public for the State of l s, 1J C- , County of SA-p,\\s?, , do hereby certify that A:- Z5-Am s 55c11 personally appeared before me this day of _ .A X, , '2011 , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, SEAL My commission expires Mct ul Q01(v Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4 Permit Number: (to be provided by DWQ) Drainage Area Number: V-27I 'e?'C 4A1 C, Yf*tp Sand Filter Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: - The drainage area will be carefully managed to reduce the sediment load to the sand filter. - The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds six inches. - Once a year, sand media will be skimmed. - The sand filter media will be replaced whenever it fails to function properly after maintenance. The sand filter will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. wvlr element: rotentiai prooiem: r1mv < <viii reineuiare cne proprem: Entire BMP Trash/ debris is resent. Remove the trash/ debris. Adjacent pavement (if Sediment is present on the Sweep or vacuum the sediment as soon as applicable) pavement surface. possible. Perimeter of sand filter Areas of bare soil and/or erosive Regrade the soil if necessary to remove the gullies have formed. gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too long. Maintain vegetation at an appropriate height. Flow diversion structure The structure is clogged. Unclog the conveyance and dispose of any sediment offsite. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair. Forebay or pretreatment area Sediment has accumulated to a Search for the source of the sediment and depth of greater than six inches. remedy the problem if possible. Remove the sediment and stabilize or dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If a pesticide is used, wipe it on the plants rather than spraying. Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 1 of 3 AV I BMP eleinent: Pote tial problem: Ilow I will remediate the problem: Filter bed and underdrain Water is ponding on the surface for Check to see if the collector system is collection system more than 24 hours after a storm. clogged and flush if necessary. If water still ponds, remove the top few inches of filter bed media and replace. If water still ponds, then consult an expert. Outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment offsite. The outlet device is damaged Repair or replace the outlet device. Receiving water Erosion or other signs of damage Contact the NC Division of Water Quality have occurred at the outlet. 401 Oversight Unit at 919-733-1786. Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 2 of 3 . t Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:Healing_Springs Ethanol Terminal BMP drainage area number: V-5 - 5,,C 4-01 ?- '-?14v'z. D Print name:A. James Russell Title:SecretM/ Treasurer Address: 1721 US Hwy 52, Albemarle NC 28001 Phon Sign: Date Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, kj?n-? i , a Notary Public for the State of R , County of o°j- fl 1(4 , do hereby certify that ?J-Anny'3L6e-// personally appeared before me this day of and acknowledge the due execution of the forgoing sand filter maintenance requirements. Witness my hand and official seal, SEAL My commission expires P U4 S'- '9014P Form SW401-Sand Filter O&M-Rev.4 2009Septl7 Page 3 of 3 Permit Number: (to be provided by DWQ) Drainage Area Number: 55 - '(K ut W- LzAQ "--Xi Bioretention Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important operation and maintenance procedures: - Immediately after the bioretention cell is established, the plants will be watered twice weekly if needed until the plants become established (commonly six weeks). - Snow, mulch or any other material will NEVER be piled on the surface of the bioretention cell. - Heavy equipment will NEVER be driven over the bioretention cell. - Special care will be taken to prevent sediment from entering the bioretention cell. - Once a year, a soil test of the soil media will be conducted. After the bioretention cell is established, I will inspect it once a month and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potential problems: How I will remediate the problem: The entire BMP Trash/debris is resent. Remove the trash/debris. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to bioretention cell erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. The inlet device: pipe, The pipe is clogged (if Unclog the pipe. Dispose of the stone verge or swale applicable). sediment off-site. The pipe is cracked or Replace the pipe. otherwise damaged (if applicable). Erosion is occurring in the Regrade the swale if necessary to swale (if applicable). smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. Stone verge is clogged or Remove sediment and clogged covered in sediment (if stone and replace with clean stone. applicable). Form SW401-Bioretention O&M-Rev.3 Page I of 4 BMP element: Potential problems: How I will remediate the problem: The pretreatment area Flow is bypassing Regrade if necessary to route all pretreatment area and/or flow to the pretreatment area. hies have formed. Restabilize the area after grading. Sediment has accumulated to Search for the source of the a depth greater than three sediment and remedy the problem if inches. possible. Remove the sediment and restabilize the pretreatment area. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. The bioretention cell: Best professional practices Prune according to best professional vegetation show that pruning is needed practices. to maintain optimal plant health. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessary. Tree stakes/wires are present Remove tree stake/wires (which six months after planting. can kill the tree if not removed). The bioretention cell: Mulch is breaking down or Spot mulch if there are only random soils and mulch has floated away. void areas. Replace whole mulch layer if necessary. Remove the remaining much and replace with triple shredded hard wood mulch at a maximum depth of three inches. Soils and/or mulch are Determine the extent of the clogging clogged with sediment. - remove and replace either just the top layers or the entire media as needed. Dispose of the spoil in an appropriate off-site location. Use triple shredded hard wood mulch at a maximum depth of three inches. Search for the source of the sediment and remedy the problem if possible. An annual soil test shows that Dolomitic lime shall be applied as pH has dropped or heavy recommended per the soil test and metals have accumulated in toxic soils shall be removed, the soil media. disposed of properly and replaced with new planting media. Form SW401-Bioretention O&M-Rev.3 Page 2 of 4 BMP element: Potential problems: How I will remediate the problem: The underdrain system Clogging has occurred. Wash out the underdrain system. (if applicable) The drop inlet Clogging has occurred. Clean out the drop inlet. Dispose of the sediment off-site. The drop inlet is damaged Repair or replace the drop inlet. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. Form SW401-Bioretention O&M-Rev.3 Page 3 of 4 1 ? Permit Number: J wfi" f. (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:Healing Springs Ethanol Terminal BMP drainage area number: ' - 4%X V- LO*Vt PQ 4 f -%F"j Print name:A. James Russell Title: Secretary/ Treasurer Address: 1721 Us Hwy 52, Albemarle, NC 28001 Phone: Signati Date: /n- Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, OV I a of /Z LTV U (? - , a Notary Public for the State of C- , County of n?ll , do hereby certify that R?1Q M'eS ?U'J'5e 1 personally appeared before me this day ofZ'?,?1,e- , 'ZD I , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, t f, My commission expires WAjA, -15, (- Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4 Permit Number: (to be provided by DWQ) Drainage Area Number: )Q2.- 5W eAl _ %7. Sand Filter Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: - The drainage area will be carefully managed to reduce the sediment load to the sand filter. - The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds six inches. - Once a year, sand media will be skimmed. - The sand filter media will be replaced whenever it fails to function properly after maintenance. The sand filter will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potential problem: flow I will remediate the problem: Entire 13MP 'I rash/ debris is resent. Remove the trash/ debris. Adjacent pavement (if Sediment is present on the Sweep or vacuum the sediment as soon as applicable) pavement surface. possible. Perimeter of sand filter Areas of bare soil and/or erosive Regrade the soil if necessary to remove the gullies have formed. gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too long. Maintain vegetation at an appropriate height. Flow diversion structure The structure is clogged. Unclog the conveyance and dispose of any sediment offsite. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair. Forebay or pretreatment area Sediment has accumulated to a Search for the source of the sediment and depth of greater than six inches. remedy the problem if possible. Remove the sediment and stabilize or dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If a pesticide is used, wipe it on the plants rather than spraying. Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 1 of 3 BMP element: Potential problem: How I will remediate the problem: Filter bed and underdrain Water is ponding on the surface for Check to see if the collector system is collection system more than 24 hours after a storm. clogged and flush if necessary. If water still ponds, remove the top few inches of filter bed media and replace. If water still ponds, then consult an expert. Outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment offsite. The outlet device is damaged Repair or replace the outlet device. Receiving water Erosion or other signs of damage Contact the NC Division of Water Quality have occurred at the outlet. 401 Oversight Unit at 919-733-1786. Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 2 Of 3 Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:Healing_Springs Ethanol Terminal BMP drainage area number: VI- - -'? V--Al L- qAv--S) Print name:A. James Russell Title: Secretary/ Treasurer Address: 1721 US Hwy 52, Albemarle, NC 28001 Phone: f / Signature: Date: Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, V j V 1 C, N -P T r,6, I I c, , a Notary Public for the State of ?J C_ County of J ?X , do hereby certify that ?arae,5 IC( 6_6M personally appeared before me this C'o day of vNr- 'Oul 1 , and acknowledge the due execution of the forgoing sand filter maintenance requirements. Witness my hand and official seal, SEAL t My commission expires Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 3 of 3 AL y Permit Number: (to be provided by DWQ) Drainage Area Number: IE4 - N W C4l L ? Sand Filter Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: - The drainage area will be carefully managed to reduce the sediment load to the sand filter. - The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds six inches. - Once a year, sand media will be skimmed. - The sand filter media will be replaced whenever it fails to function properly after maintenance. The sand filter will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. RA4P norm nf• nnf. nfio? nrn}i}r ni• Nnier } .gill rum Nr?i ?fu f}- rvrn}??Nm• Entire BMP Trash/ debris is resent. Remove the trash/ debris. Adjacent pavement (if Sediment is present on the Sweep or vacuum the sediment as soon as applicable) pavement surface. possible. Perimeter of sand filter Areas of bare soil and/or erosive Regrade the soil if necessary to remove the gullies have formed. gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too long. Maintain vegetation at an appropriate height. Flow diversion structure The structure is clogged. Unclog the conveyance and dispose of any sediment offsite. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair. Forebay or pretreatment area Sediment has accumulated to a Search for the source of the sediment and depth of greater than six inches. remedy the problem if possible. Remove the sediment and stabilize or dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If a pesticide is used, wipe it on the plants rather than spraying. Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 1 of 3 BMP element: Potential problem: How I will remediate the problem: Filter bed and underdrain Water is ponding on the surface for Check to see if the collector system is collection system more than 24 hours after a storm. clogged and flush if necessary. If water still ponds, remove the top few inches of filter bed media and replace. If water still ponds, then consult an expert. Outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment offsite. The outlet device is damaged Repair or replace the outlet device. Receiving water Erosion or other signs of damage Contact the NC Division of Water Quality have occurred at the outlet. 401 Oversight Unit at 919-733-1786. Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 2 of 3 iA ? I Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:Healing_Springs Ethanol Terminal BMP drainage area number: i? ?`1 l? ?J I? ?l C- ` A-iL p Print name:A. James Russell Title: Secretary/ Treasurer Address: 1721 US Hwy 52, Albemarle, NC 28001 Phone Signat Date: 62 &-4/ Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, VI U I`Q n Tw?rI ,'I ie- , a Notary Public for the State of N L , County of do hereby certify that personally appeared before me thisday of QTU A? and acknowledge the due execution of the forgoing sand filter maintenance requirements. Witness my hand and official seal, rM ggy, ' 5 ;s SEAL My commission expires M? ?D! Le Form SW401-Sand Filter O&M-Rev.4 2009Septl7 Page 3 of 3 Permit Number: (to be provided by DWQ) Drainage Area Number: Sand Filter Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: - The drainage area will be carefully managed to reduce the sediment load to the sand filter. - The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds six inches. - Once a year, sand media will be skimmed. - The sand filter media will be replaced whenever it fails to function properly after maintenance. The sand filter will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potential problem: How I will remediate the problem: Entire BMP Trash/debris is resent. Remove the trash/debris. Adjacent pavement (if Sediment is present on the Sweep or vacuum the sediment as soon as applicable) pavement surface. possible. Perimeter of sand filter Areas of bare soil and/or erosive Regrade the soil if necessary to remove the gullies have formed. gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too long. Maintain vegetation at an appropriate height. Flow diversion structure The structure is clogged. Unclog the conveyance and dispose of any sediment offsite. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair. Forebay or pretreatment area Sediment has accumulated to a Search for the source of the sediment and depth of greater than six inches. remedy the problem if possible. Remove the sediment and stabilize or dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If a pesticide is used, wipe it on the plants rather than spraying. Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 1 of 3 13MP element: Potentialpoblem: How l will remediate the problem: Filter bed and underdrain Water is ponding on the surface for Check to see if the collector system is collection system more than 24 hours after a storm. clogged and flush if necessary. If water still ponds, remove the top few inches of filter bed media and replace. If water still ponds, then consult an expert. Outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment offsite. The outlet device is damaged Repair or replace the outlet device. Receiving water Erosion or other signs of damage Contact the NC Division of Water Quality have occurred at the outlet. 401 Oversight Unit at 919-733-1786. Form SW401-Sand Filter O&M-Rev.4 2009Septl7 Page 2 of 3 Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:Healing Springs Ethanol Terminal BMP drainage area number: IL.5 - I'l e. 41 4-1 `7Aw-D Print name:A. James Russell Title: Secretary/ Treasurer Address: 1721 US HM 52, Albemarle, NC 28001 Phone: Signatt Date: Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, V?Viaw R Tu r Ise o ( I t-- , a Notary Public for the State of County of , do hereby certify that S2YY?es 1?4,?5ed personally appeared before me this -ZaA day of and acknowledge the due execution of the forgoing sand filter maintenance requirements. Witness my hand and official seal, SEAL My commission expires L Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 3 of 3 INTERMODAL ETHANOL TERMINAL HEALING SPRINGS, NORTH CAROLINA Table of Contents 1. Project Narrative II. Rail Yard BMPs 1. Calculations 2. Design Supplements III. Truck Loading Area BMP Calculations 1. Calculations 2. Design Supplements IV. Geotechnical Report V. Operation and Maintenance Agreements (attached) VI. Construction Drawings (attached) 1. Project Background The proposed project for the JT Russell Intermodal Ethanol Facility (Project) is located south and west of the intersection of NC Highway 8 and the High-Point-Thomasville-Denton Railroad near Bringle Ferry Road in Davidson County. The Project site is comprised of approximately 50 acres (Davidson County PIN #0902800000006) located near the town of Healing Springs, North Carolina (35.61322°, -80.17758°) within the Yadkin-Pee Dee River Sub-Basin 03-07-08. The Project drains immediately to Lick Creek before entering Tuckertown Reservoir. The Project entails the construction of a unit-train railroad yard composed of four (4) parallel tracks and rail ladder, ethanol transfer facilities (i.e. pumps and piping), and two - 2.5 million gallon ethanol storage tanks adjacent to the existing JT Russell liquid asphalt emulsion terminal facility. Ethanol is pure alcohol that has been denatured with gasoline up to 2.5% of its total volume. Plan Sheet P-1 provides an overview of the site layout and proposed Project. 2. Regulatory Compliance The Project requires various environmental permitting including compliance with Water Supply Watershed regulations, Spill Prevention, Control, and Countermeasures (SPCC) Rule, and Division of Water Quality (DWQ) 401 Water Quality certification as it pertains to this review and BMP design. The Project involves the development of 17.3 acres of undisturbed land resulting in 42.2% imperviousness however, the overall parcel is much less impervious (approximately 17%). Due to its location in the Tuckertown Reservoir watershed, it is subject to the WSW-IV ordinance administered by Davidson County's Planning Department; the project is located in the "protected" portion of the watershed. As such, the Project does not exceed high density thresholds of 24% built upon area (BUA) and therefore is not required to provide any engineered storm water controls for water quality protection. However, it is anticipated that 401 Water Quality certification will require a Storm Water Management Plan and subsequent engineered storm water controls for compliance. The low density classification per Storm Water Conditions in General Certifications 3819 and 3821 states: • All storm water from the site must be transported primarily via vegetated conveyances designed in accordance with the most recent version of the NC DWQ Storm water BMP Manual. • The project must not include a storm water collection system (such as piped conveyances) as defined in NCAC 213.0202. This Project includes multiple instances of storm water collection systems that not only provide site drainage but must also be maintained for spill control subject to the SPCC Rule; therefore, it anticipated that engineered structural controls may be required to satisfy the high density requirements of the 401 Water Quality certification. High density areas are required to be treated by Best Management Practices (BMPs) that are designed to remove 85% total suspended solids. Compliance with the SPCC is required due to the above ground storage of an oil product in excess of 1,320 gallons. The rail yard, tank farm, and truck loading areas are designed with storm water drainage systems consisting of inlets, pipes, underdrains, and outlets. The rail yard and tank farm have drainage systems that also double as spill containment systems. Spill containment systems are systems that are sized to collect a potential spill and prevent discharge to navigable waters prior to clean up efforts. This is typically done by maintaining a closed valve on the system drainage/discharge pipe. As a result of maintaining a closed value, periodically storm water will collect in the system and need to be manually discharged after an inspection has been performed to ensure it's not contaminated. The rail yard is required to also provide water quality treatment (i.e. 85% reduction of total suspended solids) given the extensive proposed impervious area to remain after construction. The truck loading area does not have spill potential but will need to comply with the 85% reduction of total suspended solids as well. The tank farm, consisting of an earthen ring levee and vegetated, compacted clay linear will have primarily a very passive use with respect to pollutant generation. Given this semi-pervious land cover, the passive use, and the requirement to inspect and manually release storm water from the system, DWQ staff has granted an exemption to fully treating the storm water. It is anticipated that the limited pollutants in the storm water would settle out before being manually released. In addition, a level spreader and filter strip have been planned for and designed to treat any resulting pollutants in the manual storm water discharges from the tank farm. 3. Water Quality Treatment Strategy As previously discussed, the rail yard and truck loading areas are required to have structural BMPs to provide an 85% reduction in total suspended solids. The total proposed BUA for the Project is 7.3 acres across 11 unique sub-basins. Four (4) new outfalls will be created as a result of the Project and two (2) existing drainage areas and outfalls will have new BUA proposed within their limits. The Project is being served by six (6) BMPs. The six (6) BMPs will treat storm water from 4.5 acres of proposed BUA and 0.6 acres of existing BUA previously untreated. The existing BUA was developed prior to water quality regulations. The BMPs treat a total of 5.1 acres of BUA; the remaining 2.2 acres, which exist in the Tank Farm sub-basin have been exempted by DWQ staff as previously discussed. The six (6) BMPs include four (4) sand filters and two (2) grass vegetated bioretention basins. The following table and accompanying Project drainage plan summarizes this information. Water Quality Treatment Summary Sub-basin ID Drainage Area (acres) Proposed BUA (acres) Existing BUA (acres) Treatment Status BMP Turnout Ladder R1 0.7 0.3 0.0 Not Treated Southwest Rail Yard R2 1.2 0.7 0.0 Treated SW Filter Southeast Rail Yard R3 0.7 0.5 0.0 Treated SE Filter Northwest Rail Yard R4 2.4 1.1 0.0 Treated NW Filter Northeast Rail Yard R5 2.0 1.1 0.0 Treated NE Filter Rail Yard Access Road R6 1.9 0.3 0.1 Treated Bioretention Basin North of Spur F1 1.1 0.1 0.2 Not Treated Tank Farm F2 2.2 2.2 0.0 Exempted Level Spreader/ Filter Strip Loop F3 1.1 0.2 0.6 Not Treated Truck Loading Area F4 4.0 0.8 0.5 Treated Bioretention Basin Total Project 17.3 7.3 1.3 Total Required for Treatment 5.1 Total to be Treated 4.5 0.6 4. BMP Design Modifications The following design modifications are being requested as variance from the North Carolina Division of Water Quality Stormwater Best Management Practices Manual. A reason for the variance is also provided. 1. All sand filters have been oversized in order to accommodate potential ethanol spill volumes with hydrologic flows in excess of typical water quality recommended values. This results in a maximum head of less than two (2) feet. While the Manual makes no mention of a minimum value, the Sand Filter Design Supplement form remarks that this is an insufficient depth. We respectfully request this variance to comply with SPCC requirements. 2. A portion of all sand filters will receive flow overland from the BUA without passing through a sedimentation basin. This portion is limited to %: the width of the outer yard tracks (1 and 4) for the length of the sand filter. It is anticipated that the ballast dissipates significantly the overland flows prior to discharging into the sand filter. In addition, there is approximately nine (9) feet of 3:1 vegetated bank slope to further dissipate energy and filter storm water. We respectfully request this variance due to site limitations of the rail yard, in particular the requirement to maintain level grades which limit the ability to drain over long distances. 3. All sand filters are designed without flow splitters in order to prevent accidental diversion of a potential ethanol spill volume. Sedimentation basins have been adequately sized and designed to dissipate higher flow volumes prior to discharging to the sand filters. We respectfully request this variance to comply with SPCC requirements 4. All sand filters underdrains are designed with a maximum slope allowed by the site which does not meet the recommended 0.5%. The underdrain's tie elevation is limited by the elevation of the 48" culvert which runs under the rain yard. Attempting to maintain the underdrain slope would force a higher fill for the rail yard, which would subsequently create a longer stream and floodplain impact already proposed for the Project. In addition, the sand filters will have manual release values that will dictate drawdown durations more so than underdrain slopes. We respectfully request this variance due to site limitations of the rail yard, in particular the requirement to maintain level grades and an attempt to minimize stream and floodplain impacts. 5. Geotechnical/Soil Report A Geotechnical Report was prepared by Bunnell-Lammons Engineering, Inc for Chambers Engineering, PA in June 2011. As part of this report geotechnical investigation was performed for the site. The full report is included in this submittal. As part of the geotechnical investigation soil borings were performed at 23 locations across the site including areas in proximity to the proposed six BMPs. Boring depths ranged from 6 -18.5 feet deep and in no boring hole was ground water encountered during the boring process and up to a period 24 hours after boring completion. It is anticipated that ground water elevations will not impact operation of any of the six proposed BMPs. Soil profiles consist of clayey soils near the surface underlain by sandy silts and silty sands. These soils depths gradually transition into partially weathered rock underlain by bedrock formations. All proposed BMPs are designed to be underdrained to provide complete drawdown and there is no specification to use onsite material for the construction of filter media. INTERMODAL ETHANOL TERMINAL HEALING SPRINGS, NORTH CAROLINA II. Rail Yard BMPs Rail Yard Bioretention Design Water Quality Volume - Used Simple Method Area (acres) A 1.90 Impervious Area (acres) 0.40 Impervous Fraction la 21.1 Runoff Coefficient Rv 0.24 Water Quality Volume (acre-ft) WQv 0.04 Water Quality Volume (ft2) WQv 1652 Rv = 0.05 + 0.9 x la V = 3630 x Rd x Rv x A Rd = 1 inches Bioretention Sizing Length (feet) 1 166 Width (feet) w 10 Depth (feet) d 2 Area (ft2) A 1660 Soil Media Type and Depth Use the following composition. Mix to be specified in Contract Specifications Sand (%) 86 Fines (%) 9 Organic (%) 5 P-Index 10-30 Bioretention area is to be grassed, so depth will 2 feet Drawdown Times Assume 2.0 inches/hour infiltration rate based on Manual recommended mix Infiltration rate (in/hr) la 2 Depth (inches) (Temp Pool) d 12 Drawdown Time (hr) t 6 Depth (inches) (Bioretention Depth) d 24 Drawdown Time (hr) t 12 Check • SS/p '• %i • ?cA' 030971 •y'yGI NEEQ:•'????? ?i????? B ANp? ?? ?I Check, <12 hours Check, <24 hours t = d/la Underdrain Sizing Using assumed 2.0 inches/hour infiltration rate Flowrate = 0.08 cubic feet second Design flow with safety of factor 10 = 0.8 cubic feet per second Flowrate (cfs) Q 0.8 Slope (%) S 0.5 Roughness n 0.011 Diameter (in) D 3.1 D= 16x [Q x n / So.s1(3/8) Assumed n = 0.011 for PVC Use 4" diameter underdrain Overflow Structure The end of the bioretention basin with have a 6 foot wide weir at 587.5' that will pass the 10-year flow at 0.5' depth. The downstream side will be riprapped to provide protection. Select Plants Bioretention will be grassed with hybrid bermuda or centipede 1 1 r l??/? ` SSlO'•??7i 030911 •.?'GI NEE``?•• Off.``. BE ?c FHWA Urban Drainage Design Program, HY-22 HYDRAULIC PARAMETERS OF OPEN CHANNELS Trapezoidal, Rectangular, or Triangular X-Section Date: 06/09/2011 Project No. :Rail Yard Bioretention Inlet Velocity Project Name.:JT Russell Ethanol IntermodalTerminal Computed by :Patrick Blandford Project Description Inlet velocity to bioretention area. Velocity out of 12" pipe routed through vegetated channel upstream of bioretention area. INPUT PARAMETERS 1. Channel Slope (ft/ft) 2. Channel Bottom Width (ft) 3. Left Side Slope (Horizontal to 1) 4. Right Side Slope (Horizontal to 1) 5. Manning's Coefficient 6. Discharge (cfs) 7. Depth of Flow (ft) OUTPUT RESULTS Cross Section Area (Sgft) Average Velocity (ft/sec) Top Width (ft) Hydraulic Radius (ft) Froude Number 0.0100 10.00 3.00 3.00 0.150 3.00 0.47 5.36 0.56 12.82 0.41 0.15 Permit Number: (to be provided by DWQ) OaO? W A r?9?G ems. ? r NCDENR ° STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name JT Russell and Brothers Intermodal Ethanol Facility Contact name Patrick Blandford Phone number (704) 338-6746 Date June 2, 2011 Drainage area number Rail Yard Access Road (R6) Ill. DESIGN INFORMATION Site Characteristics Drainage area 82,764 ftz Impervious area 17,424 fe Percent impervious 21.1% % Design rainfall depth 1.0 inch Peak Flow Calculations Is pre/post control of the 1-yr, 24-hr peak flow required? No (Y or N) 1-yr, 24-hr runoff depth 2.9 in 1-yr, 24-hr intensity in/hr Pre-development 1-yr, 24-hr peak flow ft3/sec Post-development 1-yr, 24-hr peak flow 2.990 ft3/sec Pre/Post 1-yr, 24-hr peak control 2.990 ft3/sec Storage Volume: Non-SA Waters Minimum volume required 1,652.0 ft3 Volume provided 1,660.0 ft3 OK Storage Volume: SA Waters 1.5" runoff volume ft3 Pre-development 1-yr, 24-hr runoff ft3 Post-development 1-yr, 24-hr runoff ft3 Minimum volume required 0 ft3 Volume provided ft3 Cell Dimensions Ponding depth of water 12 inches OK Ponding depth of water 1.00 ft Surface area of the top of the bioretention cell 1,660.0 ftz OK Length: 166 It OK Width: loft OK -or- Radius ft Media and Soils Summary Drawdown time, ponded volume 6 hr OK Drawdown time, to 24 inches below surface 12 hr OK Drawdown time, total: 18 hr In-situ soil: Soil permeability in/hr Planting media soil. Soil permeability 1.50 in/hr OK Soil composition % Sand (by volume) 86% OK % Fines (by volume) 9% OK Form SW401-Bioretention-Rev.8 June 25, 2010 Parts I and 11. Design Summary, Page 1 of 3 Permit Number: (to be provided by DWQ) % Organic (by volume) 5% OK Total: 100% Phosphorus Index (P-Index) of media 15 (unitless) OK Form SW401-Bioretention-Rev.8 June 25, 2010 Parts I and II. Design Summary, Page 2 of 3 Permit Number: (to be provided by DWQ) Basin Elevations Temporary pool elevation Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? Is this a cell with trees/shrubs? Planting elevation (top of the mulch or grass sod layer) Depth of mulch Bottom of the planting media soil Planting media depth Depth of washed sand below planting media soil Are underdrains being installed? How many clean out pipes are being installed? What factor of safety is used for sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and the bottom of the cell to account for underdrains Bottom of the cell required SHWT elevation Distance from bottom to SHWT Internal Water Storage Zone (IWS) Does the design include IWS Elevation of the top of the upturned elbow Separation of IWS and Surface Planting Plan Number of tree species Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the bioretention cell? Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at least 30 feet from surface waters (50 feet if SA waters)? Is the BMP located at least 100 feet from water supply wells? Are the vegetated side slopes equal to or less than 3:1? Is the BMP located in a proposed drainage easement with access to a public Right of Way (ROW)? Inlet velocity (from treatment system) Is the area surrounding the cell likely to undergo development in the future? Are the slopes draining to the bioretention cell greater than 20%? Is the drainage area permanently stabilized? Pretreatment Used (Indicate Type Used with an "X" in the shaded cell) Gravel and grass (8+inches gravel followed by 3-5 ft of grass) Grassed Swale Forebay Other 587.50 fmsl Y (Y or N) OK N (Y or N) 586.5 fmsl 0 inches Insufficient mulch depth, unless installing grassed cell. 584.5 fmsl 2ft 0.3 ft Y (Y or N) 2 OK 1ft 583.2 fmsl NA fmsl #VALUE! ft #VALUE! N (Y or N) fmsl 586.5 ft 1 Recommend more species. Y (Y or N) OK N (Y or N) Excess volume must pass through filter. ft N (Y or N) Show how flow is evenly distributed. Y (Y or N) OK Y (Y or N) OK Y (Y or N) OK Y (Y or N) OK 0.56 ft/sec OK N (Y or N) OK N (Y or N) OK Y (Y or N) OK X OK Form SW401-Bioretention-Rev.8 June 25, 2010 Parts I and II. Design Summary, Page 3 of 3 Sand Filter Design Calculations for Rail Yard Various Surface Area Calculations Width of Underdrain Rail Yard = 42 feet Total Width of Rail Yard = 55 feet A la Sand Filter Side Ditch Length (ft) Track Length (ft) Drainage Area (ac) Impervious Area (%) Underdrain Area (ac) NW 890 912 2.4 45.8 0.90 SW 421 408 1.2 58.3 0.40 NE 936 927 2.0 55.0 0.92 SE 376 389 0.7 71.4 0.38 Water Quality Volume Sizing - Simple Method Step 1 Step 1 WQv WQvadj Sand Filter Water Quality Volume (ft) Water Quality Volume Adj (ft) NW 4013 3009 SW 2505 1879 NE 3976 2982 SE 1685 1264 Sedimention Basin and Sand Filter Surface Sizing Filter Width = Depth of Sand Filter (df) _ Ls As R„=0.05+0.9xla V=3630xRdxR„xA Rd= linches Step 2 Step 2 Af hmax ha Sand Filter Length Sed Basin (ft) Area Sed Basin (ft) Area Sand Filter (ft) Max Head (ft) Average Head (ft) NW 75 225 2445 1.13 0.56 SW 34 102 1161 1.49 0.74 NE 76 228 2580 1.06 0.5 SE 32 96 1032 1.12 0. k = 3.5 feet/day hmax = WQvadj / (As + Af) t = 1.66 days ha = hmax/2 As=240xR„x Ax Rd Af= WQvxdf/[kxtx(ha+df)] (Af + As) x hmax >= WQvadj 3 feet 1.5 feet 0 SEAL 's 030971 NE NO?p 'IN lp? Step 2 Step 2 Step 3 As Af Min Area Sed Basin (ft Min Area Sand Filter (ft`) Check WQvadj (ft) 206 502 6401 92 288 4673 209 505 6150 88 211 2680 Elevations Sand Filter Bottom Elevation = Sand Elevation = Infiltration Rate = Elevations 586.34 587.84 3.5 feet/day Sand Filter WQv Elev (ft) hmax Filter Elev (ft) CPv (ft) CPv Elev (ft) NW 588.35 588.97 15474 589.19 SW 588.58 589.33 8856 589.19 NE 588.30 588.90 14240 589.66 SE 588.34 588.96 5184 589.66 Drawdown Time td td Sand Filter WQv Draw Down (hrs) CPv Draw Down (hrs) NW 7.7 9.2 SW 10.2 9.2 NE 7.3 12.5 SE 7.7 12.5 t = (Elev - Elev )/infil rate l d WQv sand I I • Q /0?? .?ai_ 030971 I NEEP : O?qy ???aBimo??.1 Underdrain Sizing Flowrate through Filter = 3.5 feet/day Design flow 10x Flowrate Q s D Sand Filter Flowrate (cfs) Design Flow (cfs) Underdrain Slope (%) Underdrain Diameter (ft) Use Minimum Diameter (in) NW 0.144 1.4 0.14 4.9 6 SW 0.068 0.7 0.30 3.2 4 NE 0.152 1.5 0.21 4.6 6 SE 0.061 0.6 0.53 2.8 4 Flowrate = WQ„ / (td x 3600 secs) D = 16 x ((Q x 0.011)/so.5)3/8 Assume roughness of 0.011 for PVC n sCKt8 L Permit Number: (to be provided by DWQ) ?F O?0F W A rf y, ? q Y r NCDENR ` STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM SAND FILTER SUPPLEMENT This form must be filled out on line, printed and submitted with all of the required information. Make sure to also fill out and submit the Required Items Checklist (Section 111) and the I&M Agreement (Section IV) L PROJECT INFORMATION Project name JT Russell and Brothers Intermodal Ethanol Facility Contact name Patrick Blandford Phone number (704) 338-6746 Date June 2, 2011 Drainage area number Northwest (NW) (R4) 11. DESIGN INFORMATION Site Characteristics Drainage area (AD) 104,544.00 fe OK Impervious area 47,916.00 fe % Impervious (IA) 45.8%% Design rainfall depth (RD) 1.00 in Peak Flow Calculations 1-yr, 24-hr runoff depth 2.90 in 1-yr, 24-hr intensity in/hr Pre-development 1-yr, 24-hr runoff ft3/sec Post-development 1-yr, 24-hr runoff 7.60 ft3/sec Pre/Post 1-yr, 24-hr peak control 7.60 ft3/sec Storage Volume Design volume (WQV) 4,013.00 ft3 Adjusted water quality volume (WQVAd1) 3,009.75 ft3 Volume contained in the sedimentation basin and on top of the sand filter 10,284.00 ft3 Top of sand filter/grate elevation 587.84 ft amsl Weir elevation (between chambers) 588.34 ft amsl Maximum head on the sedimentation basin and sand filter (hMa,Filter) 1.13 ft Average head on the sedimentation basin and sand filter (hA) 0.57 ft Runoff Coefficient (Rv) 0.46 (unitless) Type of Sand Filter Open sand filter? Y Y or N SHWT elevation N/A ft amsl Bottom of the sand filter elevation ft amsl Clearance (dSHwr) Closed/pre-cast sand filter? N Y or N SHWT elevation ft amsl Bottom of the sand filter elevation ft amsl Clearance (dSHWT) If this is a closed, underground closed sand filter: The clearance between the surface of the sand filter and the bottom of the roof of the underground ft structure (dspa,) OK Insufficient depth. OK Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 1 of 2 Permit Number: (to be provided by DWQ) Sedimentation Basin Surface area of sedimentation basin (As) Sedimentation basin/chamber depth Sand Filter Surface area of sand filter (AF) Top of sand media filter bed elevation Bottom of sand media filter bed/drain elevation Depth of the sand media filter bed (dF) Coefficient of permeability for the sand filter (k) Outlet diameter Outlet discharge/flowrate Time to drain the sand filter (t) Time to drain the sand filter (t) Additional Information Does volume in excess of the design volume bypass the sand filter? Is an off-line flow-splitting device used? If draining to SA waters: Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at least 30ft from surface waters (50ft if SA waters)? If not a closed bottom, is BMP located at least 100ft from water supply wells? Are the vegetated side slopes equal to or less than 3:1 Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? What is the width of the sedimentation chamber/forebay (Wsd)? What is the depth of sand over the outlet pipe (dpipe)? 225.00 ftz OK. Meets minimum, but may need to be increased to 0.50 ft 2,445.00 ft' Increase surface area.This will also increase the 587.84 ft amsl 586.34 It amsl 1.50 ft 3.50 (ft/day) 6.00 in ft3/sec 7.70 hours OK. Submit drainage calculations. 0.32 days Y Y or N OK N Y or N Insufficient flow splitter. YorN ft Yor N Y YorN OK Y YorN OK Y Y or N OK Y Y or N OK 3.00 ft OK 1.00 ft OK Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11. Project Design Summary, Page 2 of 2 Permit Number: (to be provided by DWQ) aF wATF9 A X. WA h ? ac` OG > y VA. NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM SAND FILTER SUPPLEMENT This form must be filled out on line, printed and submitted with all of the required information. Make sure to also fill out and submit the Required Items Checklist (Section 111) and the I&M Agreement (Section IV) L PROJECT INFORMATION Project name JT Russell and Brothers Intermodal Ethanol Facility Contact name Patrick Blandford Phone number (704) 338-6746 Date June 2, 2011 Drainage area number Southwest (SW) (R2) IL DESIGN INFORMATION Site Characteristics Drainage area (AD) 52,272.00 fe OK Impervious area 30,492.00 fe % Impervious (IA) 58.3%% Design rainfall depth (RD) 1.00 in Peak Flow Calculations 1-yr, 24-hr runoff depth 2.90 in 1-yr, 24-hr intensity in/hr Pre-development 1-yr, 24-hr runoff ft3/sec Post-development 1-yr, 24-hr runoff 4.10 ft3/sec Pre/Post 1-yr, 24-hr peak control 4.10 ft3/sec Storage Volume Design volume (WQV) 2,505.00 ft3 Adjusted water quality volume (WQVAdj) 1,878.75 ft3 Volume contained in the sedimentation basin and on top of the sand filter 4,585.00 ft3 Top of sand filter/grate elevation 587.84 ft amsl Weir elevation (between chambers) 588.34 ft amsl Maximum head on the sedimentation basin and sand filter (hMaxFilter) 1.49 ft Average head on the sedimentation basin and sand filter (hA) 0.75 ft Runoff Coefficient (Rv) 0.58 (unitless) Type of Sand Filter Open sand filter? Y Y or N SHWT elevation N/A ft amsl Bottom of the sand filter elevation ft amsl Clearance (dSHWr) Closed/pre-cast sand filter? N Y or N SHWT elevation ft amsl Bottom of the sand filter elevation ft amsl Clearance (dSHWT) If this is a closed, underground closed sand filter: The clearance between the surface of the sand filter and the bottom of the roof of the underground ft structure (dsm,) OK Insufficient depth. OK Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 1 of 2 Permit Number: (to be provided by DWQ) Sedimentation Basin Surface area of sedimentafion basin (As) Sedimentation basin/chamber depth 102.00 fe OK. Meets minimum, but may need to be increased to 0.50 ft Sand Filter Surface area of sand filter (AF) Top of sand media filter bed elevation Bottom of sand media filter bed/drain elevation Depth of the sand media filter bed (dF) Coefficient of permeability for the sand filter (k) Outlet diameter Outlet discharge/flowrate Time to drain the sand filter (t) Time to drain the sand filter (t) Additional Information Does volume in excess of the design volume bypass the sand filter? Is an off-line flow-splitting device used? If draining to SA waters: Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at least 30ft from surface waters (50ft if SA waters)? If not a closed bottom, is BMP located at least 100ft from water supply wells? Are the vegetated side slopes equal to or less than 3:1 Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? What is the width of the sedimentation chamber/forebay (Wsed)? What is the depth of sand over the outlet pipe (dpipe)? 1,161.00 ft2 OK. Meets minimum, but may need to be increased to 587.84 ft amsl 586.34 ft amsl 1.50 ft 3.50 (ft/day) 6.00 in fe/sec 10.20 hours OK. Submit drainage calculations. 0.43 days Y YorN OK N Y or N Insufficient flow splitter. Yor N ft Yor N Y Y or N OK Y Y or N OK Y Yor N OK Y Y or N OK 3.00 ft OK 1.00 ft OK Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 2 of 2 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Permit Number: (to be provided by DWQ) A? O?O? W A TF9OG NCDENR Y STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM SAND FILTER SUPPLEMENT This form must be filled out on line, printed and submitted with all of the required information. Make sure to also fill out and submit the Required Items Checklist (Section 111) and the I&M Agreement (Section IV) I. PROJECT INFORMATION Project name JT Russell and Brothers Intermodal Ethanol Facility Contact name Patrick Blandford Phone number (704) 338-6746 Date June 1, 2011 Drainage area number Northeast (NE) (R5) II. DESIGN INFORMATION Site Characteristics Drainage area (AD) 87,120.00 ftz OK Impervious area 47,916.00 ft % Impervious (IA) 55.0%% Design rainfall depth (RD) 1.00 in Peak Flow Calculations 1-yr, 24-hr runoff depth 2.90 in 1-yr, 24-hr intensity in/hr Pre-development 1-yr, 24-hr runoff ft3/sec Post-development 1-yr, 24-hr runoff 6.60 ft3lsec Pre/Post 1-yr, 24-hr peak control 6.60 ft3lsec Storage Volume Design volume (WQV) 3,976.00 ft3 Adjusted water quality volume (WQVAdi) 2,982.00 ft3 Volume contained in the sedimentation basin and on top of the sand filter 10,040.00 ft3 Top of sand filter/grate elevation 587.84 ft amsl Weir elevation (between chambers) 588.34 ft amsl Maximum head on the sedimentation basin and sand filter (hM.Filter) 1.06 ft Average head on the sedimentation basin and sand filter (hA) 0.53 ft Runoff Coefficient (Rv) 0.55 (unitless) Type of Sand Filter Open sand filter? Y Y or N SHWT elevation N/A ft amsl Bottom of the sand filter elevation ft amsl Clearance (dSHWr) Closed/pre-cast sand filter? N Y or N SHWT elevation ft amsl Bottom of the sand filter elevation ft amsl Clearance (dSHWT) If this is a closed, underground closed sand filter: The clearance between the surface of the sand filter and the bottom of the roof of the underground ft structure (dspae) Form SW401-Sand Filter-Rev.5 2009Sept17 OK Insufficient depth. OK Parts I and II. Project Design Summary, Page 1 of 2 Permit Number: (to be provided by DWQ) Sedimentation Basin Surface area of sedimentation basin (As) Sedimentation basin/chamber depth Sand Filter Surface area of sand filter (AF) Top of sand media filter bed elevation Bottom of sand media filter bed/drain elevation Depth of the sand media filter bed (dF) Coefficient of permeability for the sand filter (k) Outlet diameter Outlet discharge/flowrate Time to drain the sand filter (t) Time to drain the sand filter (t) Additional Information Does volume in excess of the design volume bypass the sand filter? Is an off-line flow-splitting device used? If draining to SA waters: Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at least 30ft from surface waters (50ft if SA waters)? If not a closed bottom, is BMP located at least 100ft from water supply wells? Are the vegetated side slopes equal to or less than 3:1 Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? What is the width of the sedimentation chamber/forebay (Wsed)? What is the depth of sand over the outlet pipe (dpipe)? 228.00 le OK. Meets minimum, but may need to be increased to 0.50 ft 2 ,580.00 fe Increase surface area.This will also increase the 587.84 ft amsl 586.34 ft amsl 1.50 ft 3.50 (ft/day) 6.00 in ft3/sec 7.30 hours OK. Submit drainage calculations. 0.30 days Y Y or N OK N Y or N Insufficient flow splitter. Yor N ft Yor N Y Y or N OK Y Y or N OK Y Y or N OK Y Y or N OK 3.00 ft OK 1.00 ft OK Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 2 of 2 Permit Number: (to be provided by DWQ) PIMA 20F W Arf90 ? r HCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM SAND FILTER SUPPLEMENT This form must be filled out on line, printed and submitted with all of the required information. Make sure to also fill out and submit the Required Items Checklist (Section III) and the 1&M Agreement (Section IV) 1. PROJECT INFORMATION Project name JT Russell and Brothers Intermodal Ethanol Facility Contact name Patrick Blandford Phone number (704) 338-6746 Date June 2, 2011 Drainage area number Southeast (SE) (R3) II. DESIGN INFORMATION Site Characteristics Drainage area (AD) 30,492.00 ff OK Impervious area 21,780.00 if % Impervious (IA) 71.4%% Design rainfall depth (RD) 1.00 in Peak Flow Calculations 1-yr, 24-hr runoff depth 2.90 in 1-yr, 24-hr intensity in/hr Pre-development 1-yr, 24-hr runoff ft3/sec Post-development 1-yr, 24-hr runoff 2.50 ft3/sec Pre/Post 1-yr, 24-hr peak control 2.50 ft3/sec Storage Volume Design volume (WQV) 1,685.00 ft3 Adjusted water quality volume (WQVAdi) 1,263.75 ft3 Volume contained in the sedimentation basin and on top of the sand filter 3,993.00 ft3 Top of sand filter/grate elevation 587.84 ft amsl Weir elevation (between chambers) 588.34 ft amsl Maximum head on the sedimentation basin and sand filter (hMaxFilter) 1.12 ft Average head on the sedimentation basin and sand filter (hA) 0.56 ft Runoff Coefficient (Rv) 0.69 (unitless) Type of Sand Filter Open sand filter? Y Y or N SHWT elevation N/A ft amsl Bottom of the sand filter elevation ft amsl Clearance (dSHWT) Closed/pre-cast sand filter? N Y or N SHWT elevation ft amsl Bottom of the sand filter elevation ft amsl Clearance (dsHWT) If this is a closed, underground closed sand filter: The clearance between the surface of the sand filter and the bottom of the roof of the underground ft structure (ds?,,) OK Insufficient depth. OK Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 1 of 2 Permit Number: (to be provided by DWQ) Sedimentation Basin Surface area of sedimentation basin (As) Sedimentation basin/chamber depth Sand Filter Surface area of sand filter (AF) Top of sand media filter bed elevation Bottom of sand media filter bed/drain elevation Depth of the sand media filter bed (dF) Coefficient of permeability for the sand filter (k) Outlet diameter Outlet discharge/flowrate Time to drain the sand filter (t) Time to drain the sand filter (t) Additional Information Does volume in excess of the design volume bypass the sand filter? Is an off-line flow-splitting device used? If draining to SA waters: Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at least 30ft from surface waters (50ft if SA waters)? If not a closed bottom, is BMP located at least 100ft from water supply wells? Are the vegetated side slopes equal to or less than 3:1 Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? What is the width of the sedimentation chamber/forebay (Wsed)? What is the depth of sand over the outlet pipe (dpipe)? 96.00 ft2 OK. Meets minimum, but may need to be increased to 0.50 ft 1, 032.00 fe Increase surface area.This will also increase the 587.84 ft amsl 586.34 ft amsl 1.50 ft 3.50 (ft/day) 6.00 in ft3/sec 7.70 hours OK. Submit drainage calculations. 0.32 days Y Y or N OK N Y or N Insufficient flow splitter. Yor N ft YorN Y YorN OK Y YorN OK Y YorN OK Y Y or N OK 3.00 ft OK 1.00 ft OK Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 2 of 2 INTERMODAL ETHANOL TERMINAL HEALING SPRINGS, NORTH CAROLINA III. Truck Loading Area BMPs CHAMBERS ENGINEERING, PA Healing Springs Ethanol Terminal BMP Calculations Date: 6-9-11 Determine Size for Bioretention Basin Determine Water Volume of "First Flush" WQVft3 = R„(Ac)(43,560 ft3lac)(RD)] / 12inirt Where: Rv = 0.05+0.009(%Imp) = 0.35 AD = 3.95 Ac RD = 1.0" WQVft3 = 0.35(3.95 Ac)(43,560 ft 3/ac)(1.0")] / 12„aft WQVft3 = 5018.5 ft3 Determine Depth & Surface Area Proposed Depth = 9 in. Required Floor Surface Area: 5,019 sf / (0.75 ft) = 6692 sf Surface Area Provided: 6,836 sf. Determine Soil Media Type Basin Designed for TSS Removal Use 9% Fines (Silt & Clay) Use 5% Organic Matter (Peat Moss) Use 86% Sand For Design Purposes, use: Permeability (P) = 2" per Hr (Basin w/ Underdrain System) •``?.""""?'''+. ,•` ?N CAR •. Verify Ponded Volume Drainage Time (t): m ?ow*;O%9 % % i1al t(Hrs) = D / P SEAL 9 t = 4.5 Hrs > 12 Hr, Drainage Time OK 35661 q : x %9? ? Fiy EQ':'p? ??• Determine Underdrain and Overflow System :,?oy•..•G?NE..• P Minimum Underdrain Size = 4 Dia. Flow Rate Through Soil Media: (0.17ft) / (3600 s/hr) (6,836 so = 0.32 cfs f • I ?I ?I r r r Safety Factor = 10 Adjusted Flow Rate: 10 (0.32 cfs) = 3.2 cfs. Diameter of Pipe (D) = 16 [ (Q*n) / (50.5) )(3") D= 16[(3.2*0.011)/(0.5%0.5)(318) D = 4.62" 4.62" < 6.13"; Use two (2) 4" pipes in underdrain, (Per NC BMP Manual Table 5-1) Cleanouts Required (Min = 1 Cleanout per 1,000 SF): 6836 sf / 1000 sf = 6.8 or 7 Cleanouts Overflow System will consist of a 4-sided weir top catch basin discharging to the downstream storm drainage system. The first weir will activate at 9" above the basin medium surface elevation. The three remaining weirs will activate at 12" above the medium surface elevation. Select Plants and Mulch Use Grassed Bioretention Cell - No stemmed vegetation or mulch required. Sod shall not come from a source grown in clay or another impermeable layer. Level Spreader - Vegetative Filter Strip (LS-VFS) Flow to Level Spreader*: Q = CIA Q = (0.46)(6.85in/in )(3.95 ac) Q = 12.46 al's > 10 cfs, Flow Splifter Required * LS receives flow from BMP drainage basin (3.95 ac) and controlled release flow from fuel farm (2.16 ac). Fuel farm stormwater will be released after storm events and will not contribute to or exceed storm flows for the BMP drainage basin. Determine LS-VFS Size LS-VFS designed for Pollutant removal, received from BMP - discharges to engineered filter strip. ++pf1/1f111j LS-VFS Design Capacity: 10cfs N CAR Bypass 2.46 cfs .?' p• 4?4A !1 From Table 8-1, NCDENR Stormwater BMP Manual SEAL ?? s = y • 35661 q ; x Level Spreader Length: 10ft/ cfs. =100 ft Min. VFS Width = 30 ft. % )V, IN?-?P'•?U Maximum VFS Slope = 5% '????f 11 e f /++++`+ ?I i • I •r • Design Bypass Structure (Flow Splitter) Determine Level Spreader flow depth (H) for 10 cfs Weir Flow Equation: Q = CwLH1,5 Q = Discharge (10 cfs) Cw = Discharge Coefficient (3.0) L = Weir Length (100 ft) H = Driving Head 10 =3(100ft)(H1-5) Solving for H = 0.10357 ft (1.24in) Level Spreader water elevation at 10 CFS = 586.04' Determine Weir Crest Elevation of Flow Splitter Water elevation flowing over Flow Splitter Weir = 586.04' Calculate H for Flow Splitter Weir at 2.46 cfs. Weir Flow Equation: Q = CwLH1.5 Q = Discharge (2.46 cfs) Cw = Discharge Coefficient (3.0) L = Weir Length (4 ft) H = Driving Head 2.46 =3(4ft)(H1'S) Solving for H = 0.34767 ft (4.17in) Flow Splitter Weir Crest = 586.04' - 0.34767' = 585.69' 9 ; aeon i `? 0w "-. GINS "14 OPANSS ????• 9P III Permit Number: (to be provided by DWQ) m O?O? W AT?q?G WDENR ` STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name JT Russell and Brothers Intermodal Ethanol Facility Contact name A. Granseur Dick Phone number 704-984-6427 Date June 15, 2011 Drainage area number Truck Loading Area (F4) 11. DESIGN' INFORMATION Site Characteristics Drainage area 172,062 ft2 Impervious area 56,620 ftz Percent impervious 32.9% % Design rainfall depth 1.0 inch Peak Flow Calculations Is pre/post control of the 1-yr, 24-hr peak flow required? N (Y or N) 1-yr, 24-hr runoff depth 2.87 in 1-yr, 24-hr intensity 0.12 in/hr Pre-development 1-yr, 24-hr peak flow 2.130 ft3/sec Post-development 1-yr, 24-hr peak flow 5.280 ft3/sec Pre/Post 1-yr, 24-hr peak control 3.150 ft3/sec Storage Volume: Non-SA Waters Minimum volume required 5,018.5 ft3 Volume provided 5,127.0 ft3 OK Storage Volume: SA Waters 1.5" runoff volume ft3 Pre-development 1-yr, 24-hr runoff ft3 Post-development 1-yr, 24-hr runoff ft3 Minimum volume required 0 ft3 Volume provided ft3 Cell Dimensions Ponding depth of water 9 inches OK Ponding depth of water 0.75 ft Surface area of the top of the bioretention cell 8,116.0 fll' OK Length: 132 ft OK Width: 62 ft OK -or- Radius ft Media and Soils Summary Drawdown time, ponded volume 4.5 hr OK Drawdown time, to 24 inches below surface hr Drawdown time, total: 4.5 hr In-situ soil: Soil permeability 1.00 in/hr OK Planting media soil: Soil permeability 2.00 in/hr OK Soil composition % Sand (by volume) 86% OK % Fines (by volume) 9% OK Form SW401-Bioretention-Rev.8 June 25, 2010 Parts I and II. Design Summary, Page 1 of 3 Permit Number: (to be provided by DWQ) % Organic (by volume) 5% OK Total: 100% Phosphorus Index (P-Index) of media 20 (unitless) OK Form SW401-Bioretention-Rev.8 June 25, 2010 Parts I and II. Design Summary, Page 2 of 3 A P A V O?OF WAT e9?G r > NCDENR , STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT This form must be completely filled out, printed, initialed, and submitted. L PROJECT INFORMATION Project name J.T. Russell & Sons, Inc., Ethanol Terminal Facility Contact name A. Granseur Dick Phone number 704-984-6427 Date June 15, 2011 Drainage area number Truck Loading Area (F4) and Tank Farm (F2) N. DESIGN INFORMATION The purpose of the LS-VFS Other. Explained below Stormwater enters LS-VFS from A BMP Type of VFS Engineered filter strip (graded & sodded, slope < 8%) Explanation of any "Other" responses above Requested by Annette Lucas in treating stormwater from a containment basin holding ethanol storage tanks. Flow also contains discharge from an upstream BMP (Bioretention Basin) If Stormwater Enters the LS-VFS from the Drainage Area Drainage area it' Do not complete this section of the form. Impervious surface area ft2 Do not complete this section of the form. Percent impervious % Do not complete this section of the form. Rational C coefficient Do not complete this section of the form. Peak flow from the 1 in/hr storm cfs Do not complete this section of the form. Time of concentration min Do not complete this section of the form. Rainfall intensity, 1 0-yr storm in/hr Do not complete this section of the form. Peak flow from the 10-yr storm cfs Do not complete this section of the form. Design storm Maximum amount of flow directed to the LS-VFS cfs Do not complete this section of the form. Is a flow bypass system going to be used? (Y or N) Do not complete this section of the form. Explanation of any "Other" responses above If Stormwater Enters the LS-VFS from a BMP Type of BMP Other: Explained below Peak discharge from the BMP during the design storm 1.7 cfs Peak discharge from the BMP during the 10-year storm 12.14 cfs Maximum capacity of a 100-foot long LS-VFS 10 cfs Peak flow directed to the LS-VFS 10 cfs Is a flow bypass system going to be used? Y (Y or N) Explanation of any "Other" responses above Receives flow from a bioretention basin (Drainage Basin 1) and a controlled release (post event) from stormwater detained in a fuel farm. Fuel farm flows are < / = bioretention flows. LS-VFS Design Forebay surface area sq tt Depth of forebay at stormwater entry point in Depth of forebay at stormwater exit point 12 in Depth is appropriate. Feet of level lip needed per cfs 10 ft/cfs Computed minimum length of the level lip needed 100 ft Form SW401 - LS-VFS - 29Nov2010 - Rev.8 page 1 of 3 Length of level lip provided Width of VFS Elevation at downslope base of level lip Elevation at the end of the VFS that is farthest from the LS Slope (from level lip to the end of the VFS) Are any draws present in the VFS? Is there a collector swale at the end of the VFS? Bypass System Design (if applicable) Is a bypass system provided? Is there an engineered flow splitting device? Dimensions of the channel (see diagram below): M B W y (flow depth for 10-year storm) freeboard (during the 10-year storm) Peak velocity in the channel during the 10-yr storm Channel lining material Does the bypass discharge through a wetland? Does the channel enter the stream at an angle? Explanation of any "Other" responses above 100 ft 30 ft 595.65 fmsl 594.15 fmsl 5.00 % N (Y or N) OK N (Y or N) Y (Y or N) Y (Y or N) Please provide plan details of flow splitter & supporting calcs. 0.00 ft 4.00 ft 4.00 ft 0.35 ft 2.54 ft 3.99 ft/sec Pick one: N (Y or N) Y (Y or N) W III.` REQUIRED ITEMS CHECKLIST EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Requried Item: 1. Plans (1" - 50' or larger) of the entire site showing: - Design at ultimate build-out, Off-site drainage (if applicable), Delineated drainage basins (include Rational C coefficient per basin), Forebay (if applicable), High flow bypass system, Maintenance access, Proposed drainage easement and public right of way (ROW), and Boundaries of drainage easement. Initials or plan sheet number and anV notes: Form SW401 - LS-VFS - 29Nov2010 - Rev.8 page 2 of 3 ? i 2. Plan details (1" = 30' or larger) for the level spreader showing: - Forebay (if applicable), High flow bypass system, One foot topo lines between the level lip and top of stream bank, Proposed drainage easement, and Design at ultimate build-out. 3. Section view of the level spreader (1" = 20' or larger) showing: - Underdrain system (if applicable), Level lip, Upslope channel, and Downslope filter fabric. 4. Plan details of the flow splitting device and supporting calculations (if applicable). 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire drainage area is stabilized. 6. If a non-engineered VFS is being used, then provide a photograph of the VFS showing that no draws are present. 7. The supporting calculations. 8. A copy of the signed and notarized operation and maintenance (08M) agreement. Form SW401 - LS-VFS - 29Nov2010 - Rev.8 page 3 of 3 INTERMODAL ETHANOL TERMINAL HEALING SPRINGS, NORTH CAROLINA IV. Geotechnical Report BUNNELL-LAMMONS ENGINEERING, INC. GEOTECHNN;AL, ENVIRONMENTAL AND CONSTRUCTION MATERIALS CONSULTANTS June 3, 2011 Chambers Engineering, PA 129 North First Street Albemarle, North Carolina 28002 Attention. Mr Stephen G. Chambers, P.E. Subject: Report of Geotechnical Exploration Ethanol Transfer and Storage Facility Healing Springs, North Carolina BLE Project No: Jll-7563-01 BLE NC License No. C-1538 Dear Mr Chambers: Bunnell-Lammons Engineering, Inc. (BLE) is pleased to present this report of geotechnical exploration for the proposed Ethanol Storage and Transfer Facility Our services were provided in accordance with Bunnell-Lammons Engineering (BLE) Proposal No. P11-0186A dated April 25, 2011 and authorized by you on April 27, 2011 The purpose of this exploration was to determine general subsurface conditions and provide recommendations for foundation design for the proposed facility This report describes the work performed, and presents the results obtained, along with our geotechnical recommendations. Project Information Project information was obtained from a conversation between Mr Stephen Chambers, P.E. and our Mr. Gary Weekley, P.E., along with a site layout with locations for 23 exploratory soil test borings. We were also provided with the proposed grading plan. The site is located near the intersection of Bringle Ferry Road and NC Highway 8 in Healing Springs, North Carolina (reference Figure 1). We understand that the project will consist of the construction of four railroad spur lines from the existing High Point, Thomasville and Denton Railroad, an elevated walkway system to access the top of the rail cars, a tanker truck loading facility, two 2.5-million gallon tanks with an earth containment embankment and a pump station with a pipe bridge to the tanks. Finished grades for the rail spur lines will require as much as about 10 feet of fill in the western half and 12 feet of excavation in the eastern half. The 2.5-million gallon tanks will be approximately 92 feet in diameter and 45 feet tall. The steel tanks will be supported on a ringwall foundation. 6004 PONDERS COURT PHONE (864) 28&1265 GREENVILLE, SOUTH CAROLINA 29615 FAX (864) 2884430 iNC Report of Geotechnical Exploration Ethanol Transfer and Storage Facility Healing Springs, North Carolina Field Exploration June 3, 2011 BLE Project No: JI1- 7563-01 The exploration consisted of performing a total of 23 soil test borings. The soil test borings were advanced to depths of between 6 and 18.5 feet below the existing ground surface at the approximate locations shown on Figure 2. The soil test borings were performed using a truck-mounted drill rig turning 2-1/4 inch I.D. hollow-stem augers. Soil samples were obtained in accordance with ASTM D 1586 by driving a 1-3/8 inch I.D. split-spoon sampler with a 140-pound safety hammer The ground surface elevations at the boring locations were interpolated from the elevation contours shown on the provided drawing. The boring locations and elevations referenced in this report and shown on the figures and field records should be considered approximate. The Soil Test Boring Records and a description of our field procedures are attached. Site and Subsurface Conditions Area GeoloQy The site is located in the Carolina Slate Belt section of the Piedmont Physiographic Province of North Carolina. The Slate Belt is a band of rock stretching from Georgia through the Carolinas into Virginia. The rocks are primarily volcanic and sedimentary in origin, and have been subjected to heat and pressure (metamorphism) over geologic time since their formation. The major rock type of the belt is not slate, but includes a variety of metavolcanic and metasedimentary rocks. The metavolcanics include tuffs, rhyolitic, dacitic, and andesitic flows and breccias; the metasediments include slate and argillite. The typical residual soil profile consists of clayey soils near the surface, where soil weathering is more advanced, underlain by sandy silts and silty sands. The boundary between soil and rock is not sharply defined. A transitional zone termed "partially weathered rock" is normally found overlying the parent bedrock. Partially weathered rock is defined, for engineering purposes, as residual material with standard penetration resistances in excess of 100 blows per foot. Weathering is facilitated by fractures, joints, and the presence of less resistant rock types. Consequently, the profile of the partially weathered rock and hard rock is quite irregular and erratic, even over short horizontal distances. Also, it is not unusual to find lenses and boulders of hard rock and zones of partially weathered rock within the soil mantle, well above the general bedrock level. Site Conditions The project site is located just south of the intersection of Bringle Ferry Road and NC Highway 8 in Healing Springs, North Carolina. The site is bounded to the north by the mainline of the High Point, Thomasville and Denton Railroad and to the south by Lick Creek. The site currently has a rail spur, several tanks and buildings in the eastern half of the site. The site is mostly open fields with scattered trees except for the wooded area in the western half of the proposed railroad spurs. 2 Report of Geotechnical Exploration Ethanol Transfer and Storage Facility Healing Springs, North Carolina June 3, 2011 BLE Project No. J11-7563-01 The ground surface in the vicinity of borings B-3 and B-4 was stained by ponded water Lick Creek flows along the southern side of the site and the mainline of the railroad extends along the northern site boundary A small stream flows through a pipe culvert beneath the railroad and across the proposed rail spur area before draining into Lick Creek. A 400-foot diameter settling pond is located south of the site between the proposed rail spurs and Lick Creek. The ground surface slopes down primarily from north to south. Ground surface elevations vary from approximately 608 to 582 feet. Subsurface Conditions The borings encountered 4 to 6 inches of topsoil or root mat in the open fields and wooded areas. Borings B-21, B-22 and B-23, located in the existing facilities encountered a 6-inch thick surface layer of gravel. Beneath the surficial materials, the borings encountered a relatively uniform subsurface profile of firm to hard silty clay, clayey silt and sandy silt underlain by very hard partially weathered rock (PWR). The soil overlying the PWR ranged from negligible to 12 feet in thickness, but typically varied from 3 to 6 feet thick. The depth to the top of PWR encountered at each boring is presented on the attached Soil Test Boring Summary The clayey soils are moderately plastic. The PWR sampled as sandy silt and rock fragments. Several borings encountered auger refusal at depths varying from 6 to 11 feet (approximate elevation 572 to 589 feet). The depth to auger refusal encountered by the borings is presented on the attached Soil Test Boring Summary Refusal may result from boulders, lenses, ledges, or layers of relatively hard rock underlain by partially weathered rock or residual soil; refusal may also represent the surface of relatively continuous bedrock. Core drilling procedures are required to penetrate refusal materials and determine their character and continuity Core drilling was beyond the scope of this exploration. Ground water was not encountered by the borings at the time of drilling or after 24 hours. Ground-water levels may fluctuate several feet with seasonal and rainfall variations and with changes in the water level in the adjacent pond. Perched or trapped water may be encountered in the soils overlying the PWR. Normally, the highest ground-water levels occur in late winter and spring and the lowest levels occur in late summer and fall. The above descriptions provide a general summary of the subsurface conditions encountered. The appended test boring records contain detailed information recorded at each boring location. The boring logs represent our interpretation of the field logs based on engineering examination of the field samples. The lines designating the interfaces between various strata represent approximate 3 Report of Geotechnical Exploration June 3, 2011 Ethanol Transfer and Storage Facility BLE Project No: J17-7563-01 Healing Springs, North Carolina boundaries and the transition between strata may be gradual. It should be noted that the soil conditions will vary between boring locations. Foundation and Site Preparation Recommendations Foundations for the proposed storage tanks bearing within the hard residual soil or very hard partially weathered rock may be sized for an allowable bearing pressure of 5,000 psf, subject to the minimum dimensions and protective embedment depths in this report. We recommend that the minimum width for the ringwall foundation be 24 inches. The minimum width is considered advisable to provide a margin of safety against a local or punching shear failure of the foundation soils. Footings should bear at least 18 inches below final exterior grade for embedment needed to develop the recommended allowable design bearing pressure and to provide frost protection. The soil within the ring foundation of the tank will be confined by the ringwall. Under the influence of the tank load, lateral earth pressures will be induced into the ring foundation. These forces will be resolved as tensile forces in the ring. The ringwall foundation should be designed to resist these forces. We recommend a coefficient of at-rest earth pressure (Ko) of 0.6 be applied to the bearing pressure of the frill tank to estimate the lateral earth pressures on the ring foundation. We recommend that foundation excavations be observed and the underlying bearing material tested with a dynamic cone penetrometer by an engineering technician working under the direction of the geotechnical engineer. This observation and testing will document that the design bearing conditions are present and allow recommendations for any needed adjustments in foundation size or bearing elevation to be made at specific locations. Settlement of foundations on hard rock or the partially weathered rock should be negligible to 1/2 inch or less, respectively Additional information relative to proposed foundation loads and additional analysis is necessary to estimate settlement of lightly loaded load bearing walls or columns, bearing on soil. As a general statement, however, the settlements of foundations for these lightly loaded elements would be a maximum of 1 inch, based on the above bearing pressures for engineered fill and residual soils and our experience. The anticipated settlement should occur rapidly following application of the load. Individual spread foundations should bear entirely in either fill, residual soils, partially weathered rock or hard rock. For continuous walls and slabs bearing on a combination of rock and residual soils, overexcavation of the hard rock approximately 1 foot and replacement with compacted aggregate or engineered fill to provide a cushion is recommended. Suitable construction joints should be included in partition walls particularly where they span across varying supporting materials (i.e. residual soils to partially weathered rock or hard rock). 4 Report of Geotechnical Exploration Ethanol Transfer and Storage Facility Healing Springs, North Carolina June 3, 2011 BLE Project No. J11-7563-01 Exposure to the environment may weaken the soils at the footing bearing level if the foundation excavations remain open for long periods of time. Therefore, we recommend that once each footing excavation is extended to final grade that the footing be constructed as soon as possible thereafter to minimize the potential damage to bearing soils. The foundation bearing area should be level or benched and be free of loose soil, ponded water and debris. Foundation concrete should not be placed on soils that have been disturbed by seepage. If the bearing soils are softened by surface water intrusion or exposure, the softened soils must be removed from the foundation excavation bottom immediately prior to placement of concrete. If the excavation must remain open overnight or if rainfall becomes imminent while the bearing soils are exposed, we recommend placement of a 2 to 4-inch thick "mud-mat" of "lean" (2000 psi) concrete on the bearing soils before the placement of reinforcing steel for protection. Seismic Site Classification Based on the definitions of the International Building Code (IBC 2009) and the 2006 North Carolina Amendments, the soil boring data, and our experience in this area, this site has a site classification of "C" The design coefficients for seismic acceleration are as follows: for a "short" period of 0.2 seconds, SD,, is equal to 0.209, and for a period of 1.0 seconds, SDI is equal to 0.108. This data is based on the latitude and longitude of the facility and the "C" site classification. If site specific seismic classification data is desired, e.g. ReMi testing, BLE should be consulted to perform this additional testing. Lateral Earth Pressures Basement and retaining walls, if utilized on this project, must be capable of resisting the lateral earth pressures that will be imposed on them. Based on testing of reasonably similar soils on other projects, the following earth pressure coefficients are recommended. Walls which will be prevented from rotating such as basement walls braced against the upper floor level should be designed to resist the "at-rest" lateral earth pressure. The at-rest coefficient to be used in design will depend upon the type of backfill used. The clayey soils encountered by the borings are not suitable for use as wall backfill. If silty sand (sandy silt), low plasticity (PI<10) soils without clay are used for backfill behind walls, we recommend that an at-rest coefficient (Ko) of 0.6 be used. If more granular material such as compacted clean washed sand is used as backfill, a lower at-rest coefficient of 0.45 could be used. In order for this coefficient to be used, the soil wedge within an angle of 45 degrees from the base of the wall to about 2 feet below the exterior grade should be excavated and replaced with compacted clean washed sand. 5 OUR. Report of Geotechnical Exploration Ethanol Transfer and Storage Facility Healing Springs, North Carolina June 3, 2011 BLE Project No: J11-7563-01 Walls such as exterior retaining walls which are permitted to rotate at the top may be designed to resist "active" lateral earth pressure. Typically, a top rotation of about 1 inch per 10 feet height of wall is sufficient to develop active pressure conditions in soils similar to those encountered at the site. We recommend that an active earth pressure coefficient (Ka) of 0.4 be used for design of such walls if silty sand (sandy silt), low plasticity (PI<10) soils without clay are used for backfill. If a properly compacted, clean washed sand is used as backfill behind the wall within the active failure zone, a lower active earth pressure coefficient of 0.30 can be used. The compacted mass unit weight of the backfill soil (which we estimate could reasonably be assumed as 120 pcf) should be used with the above earth pressure coefficients to calculate lateral earth pressures. Lateral pressure arising from surcharge loading, earthquake loading, and ground water, should be added to the above soil earth pressures to determine the total lateral pressures which the walls must resist. In addition, transient loads imposed on the walls by construction equipment during backfilling should be taken into consideration during design and construction. Excessively heavy grading equipment (that could impose temporary excessive pressures or long term excessive residual pressures against the constructed walls) should not be allowed within about 5 feet (horizontally) of the walls. A coefficient of 0.5 could be reasonably assumed for evaluating ultimate frictional resistance to sliding at the foundation-soil contact. A passive earth pressure coefficient of 2.5 could be reasonably assumed for evaluating ultimate lateral resistance of the soil against the side of the foundation where this is a permissible condition. This passive earth pressure should be divided by a safety factor of at least 2 to limit the amount of lateral deformation required to mobilize the passive resistance. The at-rest, active, and passive earth pressure coefficients presented herein are based upon the assumption of horizontal backfill. Sloping backfill will dramatically influence those values where walls must be designed for sloping conditions. Bunnell-Lammons Engineering should be consulted regarding the appropriate earth pressure coefficients if a sloping backfill condition will exist. To reduce pore water pressures behind retaining walls, including under-slab pump station walls, appropriate drainage should be incorporated into the wall design. This has been done in previous projects by using a 4 to 6-inch perforated pipe along the length of the wall. Pipe should be enclosed in NCDOT No. 57 stone, which should be placed adjacent to the wall along the entire height of the wall. The No. 57 stone should be separated from the backfill by using a non-woven geotextile filter such as a Mirafi 140N or approved equal to enclose the No. 57 stone envelope. 6 191A R. Report of Geotechnical Exploration Ethanol Transfer and Storage Facility Healing Springs, North Carolina Grade Slab And Pavement Subgrade June 3, 2011 BLE Project No: J11-7563-01 Grade slabs may be supported on an excavated residual soil smiface or on properly compacted fill. If the subgrade consists of compacted fill, the top 18 inches of subgrade soil should be compacted to at least 98 percent of the standard Proctor (ASTM D 698) maximum dry density for the subgrade soil. Grade slabs should be jointed around columns and along footing supported walls so that the slab and foundations can settle differentially without damage (unless a monolithic foundation slab is utilized). If slab thickness permits, joints containing dowels or keys may be used in the slab to permit movement between parts of the slab without cracking or sharp vertical displacements. A layer of granular material should be placed immediately beneath the grade slab to provide a capillary barrier and to increase the load distribution capabilities. We recommend that a modulus of subgrade reaction value of 110 psi/inch or less be used for design of the grade slabs. Completed slabs should be protected from excessive surface moisture prior to and during periods of prolonged below-freezing temperatures to prevent subgrade freezing and resulting heave. A site specific pavement design requires detailed information about projected traffic frequency and intensity, acceptable service limits, life expectancy and other factors that are not currently available. It also requires site specific laboratory testing which was not part of the scope of this exploration. We have assumed that light-duty paved areas will be required for this project. We define light-duty paved areas as areas having a heavy concentration of automobiles and no loaded trucks, such as a car parking lot pavement. Recommended pavement sections based on our experience on similar projects in this region are presented in the following table. Assuming the site is prepared in accordance with the recommendations of this report, the pavement sections presented as follows would be expected to provide adequate performance considering a 15 to 20-year service life. PAVEMENT TYPE LAYERS MATERIAL THICKNESS (inches) Flexible (Asphalt) Surface SF-9 5B Superpave 3.5 Base Aggregate base course 10.0 Rigid Surface Portland Cement Concrete 7.0 A proofroll test, as described in this report, should be performed on the pavement subgrade prior to the placement of the base course. If the proofroll test is not successful a biaxial geogrid should be placed over the subgrade to increase subgrade strength. The geogrid should be a Tensar BX1300 or approved equal which meets the requirements of NCDOT Standard Specifications Division 10. 7 E i Gvt rC.q,ag? i:ic Report of Geotechnical Exploration June 3, 2011 Ethanol Transfer and Storage Facility BLE Project No: J11-7563-01 Healing Springs, North Carolina For heavy traffic areas, we recommend adding a 3-inch thick intermediate course (type I-19.013 Superpave) to prolong pavement life. Intermediate and surface courses of pavement constructed using the Superpave asphalt mixtures should be placed and conform to the NCDOT Standard Specification (2006 Edition), Section 610 for type I-19 OB intermediate and 5-9.513 surface course Superpave mixtures. The base course material should be Aggregate Base Course Material conforming to NCDOT Standard Specification, Section 520, for Type B aggregate. The base course should be compacted to at least 98 percent of the modified Proctor (ASTM D 1557) maximum dry density. A prime coat (NCDOT Standard Specification, Item 600) is recommended to be applied to the base course prior to construction of the asphalt intermediate course. A tack coat (NCDOT Standard Specification, Item 605) should be applied to the intermediate course prior to the placement of the asphalt surface course. The concrete for rigid pavement should be air-entrained and have a minimum flexural strength (third point loading) of 550 psi which could likely be achieved by a concrete mix having a compressive strength of at least 4,000 psi at 28 days. Recommended air contents from the Portland Cement Association (PCA) are as follows: Maximum Aggregate Size Percent Air 1 %2 inches 5 percent plus or minus 1 %2 percent % to 1 inch 6 percent plus or minus 1 %2 percent In addition, we recommend a maximum slump of 4 inches for the plastic concrete. Joint spacing for this concrete thickness should be on the order of 12 to 15 feet. Control points should be sawed as soon as the cut can be made, without raveling (aggregate pulling out of the concrete matrix) or cracks forming ahead of the saw blade. Joints should be sawed consecutively to allow all of the joints to work together The American Association of State Highway and Transportation Officials (AASHTO) suggests that transverse contraction joints should be one quarter of the slab thickness and longitudinal joints should be one third of the slab thickness. All joints should be filled with flexible joint filler Curing of the concrete slab should begin as soon as the slab has been finished and the joints sawed. Moist curing by fog spray nozzles or wet burlap is the most dependable curing procedure. Other methods of curing could consist of spray applied curing compounds or covering the slab with waterproof paper or heavy plastic. If paper or plastic is used for curing, the edges of the cover should be anchored and joints between sheets should be taped or sealed. 8 MC. Report of Geotechnical Exploration June 3, 2011 Ethanol Transfer and Storage Facility BLE Project No: Jll -7563-01 Healing Springs, North Carolina Related civil design factors such as subgrade drainage, shoulder support, cross-sectional configurations, surface elevations, and environmental factors which will significantly affect the service life must be included in the preparation of the construction drawings and specifications. Normal periodic maintenance will be required. Proofrollina After stripping and rough excavation grading, we recommend that areas to provide support for fill areas, foundations, floor slab and pavement area be carefully inspected for loose surficial soils and proofrolled with a 20 to 25-ton, four-wheeled, rubber-tired roller or similar approved equipment. The proofroller should make at least four passes over each location, with the last two passes perpendicular to the first two. Any areas which wave, rut, or deflect excessively and continue to do so after several passes of the proofroller should be excavated to firmer soils. The excavated areas should be backfilled in thin lifts with suitable compacted fill materials as recommended in this report. Proofrolling and excavating operations should be monitored by an experienced engineering technician working under the direction of the geotechnical engineer Proofrolling should not be performed during or immediately after periods of precipitation. Difficult Excavation As stated previously, there is usually no sharp distinction between soil and rock in residual soil areas such as at this site. Typically, the degree of weathering simply decreases with increasing depth until sound rock is eventually reached. The partially weathered rock, as well as the soil above, may also contain boulders, lenses, or ledges of hard rock. Some of the partially weathered rock of the transitional zone could be penetrated by the mechanical auger used in this exploration and can sometimes be excavated without blasting. However, it is often extremely difficult to excavate partially weathered rock without blasting, especially in confined excavations such as utility trenches and footings. The ease of excavation depends on the quality of grading equipment, skill of the equipment operators, and geologic structure of the material itself such as the direction of bedding, planes of weakness, and spacing between discontinuities. Weathered rock or rock that cannot be penetrated by the mechanical auger will normally require blasting to loosen it for removal. Corrosion Potential There are several measurable soil properties which may be used to estimate the potential corrosiveness of a soil. These properties include resistivity, pH, Redox potential, and sulfide content. Resistivity and pH are the two soil properties which have the greatest influence on underground corrosion. 9 al ;.'3 z. ./ Nc Report of Geotechnical Exploration June 3, 2011 Ethanol Transfer and Storage Facility BLE Project No: Jll -7563-01 Healing Springs, North Carolina The pH of a soil is a measure of the hydrogen-ion concentration and indicates the intensity of acidity or alkalinity of a soil. A pH value of 7 indicates neutral conditions; higher values, alkalinity; lower values, acidity Soil pH values were determined by using ASTM D4972. This test procedure involves immersing the probe of a pH meter into a prepared slurry of soil sample and deionized water as well as a prepared slurry of soil sample and calcium chloride solution. Both solutions are used in order to bracket the range of pH values for a given soil with the water solution providing a higher pH and the calcium chloride solution having a lower pH. The pH meter was calibrated with buffer solutions prior to making actual measurements. The pH was measured for a composite of soil from boring B-18 from 1 to 5 feet below the ground surface and a composite of borings B-21 and B-23 from 1 to 2.5 feet below ground surface. The pH values for the water-soil slurry varied from 4.5 to 5.7 for the boring B-18 sample and borings B-21/B-23 composite sample, respectively The electrical resistivity of a soil is measured in the laboratory by immersing the probe of a conductivity meter into a prepared slurry of soil sample and deionized water. The electrical resistivity depends mainly on the quantity of soil water and concentration of ions in solution. The electrical resistivity is the inverse of the conductivity Resistivity values ranged from approximately 10,900 ohm-cm to 23,400 ohm-cm for composite sample from borings B-21B-23 and boring B-18, respectively Using the measured lab resistivity and pH values for the soil from borings B-18, B-21, and B-23, we estimate that the site soils to be highly-corrosive due to the low pH and resistivity Based on the literature, a severe degree of chemical attack will occur against concrete and steel. The literature recommends that Type V cement be used. As a less expensive alternative, potential sulfate attack may be reduced by using a Type II cement in conjunction with an admixture such as flyash. Flyash tends to make the concrete more dense and thus reduce the potential for corrosion. The flyash should not be used as a substitute for cement, but as an additional part of the mix. 1. "Method for Estimating the Service Life of Metal Culverts," State of California Department of Public Words division of Highways, Test Method No. 643-C, Oct., 1972. 2. Ramonoff, Melsin, "Corrosion of Steel Piling in Soils," National Bureau of Standards Monograph 58, U.S. Department of Commerce, Washington, D.C. Oct., 1962. 3. Smith, W H., "A Report on Corrosion Resistance of Cast Iron and Ductile Iron Pipe," Cast Iron Pipe Research Association, Chicago, 1968. 4. "Discussions of Underground Corrosion and Protective Systems," National Academy of Sciences Pub. 991, Federal Construction Council Symposium Workshop Report 1, 1962. 10 s. r'.:a..d dint Report of Geotechnical Exploration Ethanol Transfer and Storage Facility Healing Springs, North Carolina June 3, 2011 BLE Project No: J11-7563-01 Engineered Fill Fill used for the replacement of excavated unsuitable soil or for raising site grades should be uniformly compacted in thin lifts to at least 98 percent of the standard Proctor maximum dry density (ASTM D 698). The structural fill should contain no more than 3 percent organic matter by weight and should be free of roots, limbs, other deleterious material and rocks larger than 6-inches in diameter. The moisture content of the compacted soil fill should be maintained within plus or minus 3 percent of the optimum moisture content as determined from the standard Proctor compaction test during placement and compaction. This provision may require the contractor to dry soils during periods of wet weather or to wet soils during dry periods. Before filling operations begin, representative samples of each proposed fill material should be collected and tested to determine the compaction and classification characteristics. The maximum dry density and optimum moisture content should be determined. Once compaction begins, a sufficient number of density tests should be performed by an experienced engineering technician working under the direction of the BLE geotechnical engineer to measure the degree of compaction being obtained. The surface of compacted subgrade soils can deteriorate and lose its support capabilities when exposed to environmental changes and construction activity Deterioration can occur in the form of freezing, formation of erosion gullies, extreme drying, and exposure for a long period of time or rutting by construction traffic. We recommend that the surfaces of floor slab and pavement subgrades that have deteriorated or softened be recompacted prior to construction of the floor slab or pavement. Additionally, any excavations through the subgrade soils (such as utility trenches) should be properly backfilIed in compacted lifts. Recompaction of subgrade surfaces and compaction of backfill should be checked with a sufficient number of density tests to determine if adequate compaction is being achieved. Specification Review It is recommended that Bunnell-Lammons Engineering be provided the opportunity to make a general review of the foundation and earthwork plans and specifications prepared from the recommendations presented in this report. We would then suggest any modifications so that our recommendations are properly interpreted and implemented. 11 s* we Report ofGeotechnical Exploration Ethanol Transfer and Storage Facility Healing Springs, North Carolina June 3, 2011 BLE Project No: JII -7563-01 Basis of Recommendations Our evaluation of foundation support conditions has been based on our understanding of the project information and data obtained in our exploration as well as our experience on similar projects. The general subsurface conditions utilized in our foundation evaluation have been based on interpolation of the subsurface data between the widely spaced borings. Subsurface conditions between the borings will differ If the project information is incorrect or the structure location (horizontal or vertical) and/or dimensions are changed, please contact us so that our recommendations can be reviewed. The discovery of any site or subsurface conditions during construction which deviate from the data obtained in this exploration should be reported to us for our evaluation. The assessment of site environmental conditions for presence of pollutants in the soil, rock and ground water of the site was beyond the scope of this exploration. Closing We appreciate the opportunity to provide our professional geotechnical services on this project. If you have any questions regarding this report please to not hesitate to call us. We also offer construction materials and technician field testing services. We hope that you will give BLE consideration to provide these services as this project enters the construction phase. Sincerely, BUNNELL-LAMMONS ENGINEERING, INC. it- V), xcodx Tyler W Moody, E.I.T. Engineering Associate Attachments: Site Location Map Boring Location Plan Soil Test Boring Records Key to Soil Symbols and Classifications Field Exploration Procedures Laboratory Test Results `\\\I\\tfl\j? II Gary L eekley, P.E. tN GARp? ••••N•••• Senior Engineer •oEV-SS1o?'?`9 ?'•, Registered, North Carolina #82 SEAL - S 8251 l ;Gq'•.;?'GINE? ??. '''??r ? . WEE ?\o• 12 2000 1000 0 2000 4000 APPROXIMATE SCALE IN FEET DRAWN: ACE DATE: 05-22-11 CHECKED: GLW CAD: ETHANOLTRFA-SLM APPROVED- JOB No- J11-7563-01 REFERENCE: USGS TOPOGRAPHIC MAP, 7.5 MINUTE SERIES, GRIST MOUNTAIN AND HIGH ROCK, N.C. QUADRANGLES, PHOTOINSPECTED 1983 AND 1994. FIGURE SITE LOCATION MAP ANOL STORAGE AND TRANSFER FACILITY HEALING SPRINGS, NORTH CAROLINA O O <F U V' O m 3 yaO 6 r f .'.•,? t t?. _ i A ?lT I % 04 > ¢. ??47:'•i fif ? lkx M z --- q-= gym- ?, c s N m D Q C'f 2 2 r9 m ' o I g F F Z 0 s 0 n o x X W N ? Q Q Z ZZZ??d O F ? F ? Q ? Z Z ?. ?WWa[9 Z Q C O o m N C9 O R co ? a s o ¢ 'S pm r m P m rc SOIL TEST BORING SUMMARY ETHANOL TRANSFER AND STORAGE FACILITY HEALING SPRINGS, NORTH CAROLINA BLE Project No. J11-7563-01 May 24, 2011 Boring Ground Finished Cut (-) Top of PWR* Auger Refusal Structure Location Number Elevation Feet Grade Feet Fill (+) Feet Depth Feet Elevation Feet Depth Feet Elevation Feet B-1 590 591 1 0 590 8 582 Rail Yard B-2 584 591 7 12 572 Not Encountered Rail Yard B-3 582 591 9 8 574 9 573 Rail Yard B-4 583 591 8 Not Encountered 11 572 Rail Yard B-5 582 591 9 6 576 Not Encountered Rail Yard B-6 583 591 8 3 580 6 577 Rail Yard B-7 591 591 0 0.5 591 6 585 Rail Yard B-8 596 591 -5 6.5 590 Not Encountered Rail Yard B-9 599 591 -8 3 596 Not Encountered Rail Yard B-10 597 591 -6 3 594 8 589 Rail Yard B-11 594 591 -3 4 590 11 583 Rail Yard B-12 592 591 -1 6 586 11 581 Rail Yard B-13 600 591 -9 3 597 Not Encountered Rail Yard B-14 603 591 -12 9 594 Not Encountered Rail Yard B-15 595 595 0 6 589 Not Encountered Access Road B-16 595 591 -4 6 589 Not Encountered Rail Yard B-17 595 592 -3 3 592 Not Encountered Ethanol Tank B-18 598 592 -6 6 592 Not Encountered Ethanol Tank B-19 596 592 -4 8 588 Not Encountered Ethanol Tank B-20 597 598 1 _4 593 Not Encountered Truck Loading Area B-21 596 Unknown -- 6 590 Not Encountered Existing Tank Area B-22 595 Unknown -- 6 589 Not Encountered Existing Tank Area B-23 595 Unknown -- 4 591 Not Encountered Existing Tank Area * PWR - Partially Weathered Rock Residual Material with Standard Penetration Resistance of 100 bpf or more. 11LENC. BLI NNELL-LAMMONS ENGNEERM INC. GEOTWHmcm AmENyRONI1BItu. CONIULMM ELEVATIONI DEPTH (FT) SOIL TEST BORING NO. B-1 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 5-3-11 END:-5-3-11 LOCATION: Healing Springs, North Carolina ELEVATION: 590 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> I NITIAL: Q. SOIL DESCRIPTION to coarse sandy SILT with rock fragments - as Very hard PARTIALLY WEATHERED ROCK below 3 feet 5854-5 AFTER 24 HOURS: -y 10 Auger refusal at 8 feet. No groundwater encountered at time of drilling or after 24 hours. 20 565-)-25 560 655 SOIL TYPE 121 STANDARD PENET OTION RESULTS BLOWSIOT ,1LENC SOIL TEST BORING NO. B-2 . PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 BUMELL-LAMMONS CLIENT: Chambers Engineering START: 5-3-11 END: 5-3-11 ENGWEBUNG, INC. LOCATION: Healing Springs, North Carolina ELEVATION: 584 OE0TECH CALANOENvmom mr m DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley C DRILLING METHOD: ONeu%vurrs DEPTH TO - WATER> INITIAL: AFTER 24 HOURS:1 CAVING>3W w ELEVATION/ SOIL DESCRIPTION SOIL ii STANDARD PENETRATION RESULTS DEPTH (FT) TYPE 2 BLOWSIFOOT a N 2 5 10 20 30 40 50 70 90 Very stiff to hard, greenish-brown, silty CLAY - (residuum) 12 12 :.? ................. ..:.:.. 580 15 15 ........ 5 1g 16 :.... :...:..:.....:................:..:.. 18 19 ? ... :...:. .:..:.. . 575 14 15 ................. ... ........ ....... ... -10 16 Very hard PARTIALLY WEATHERED ROCK which sampled as clayey ................................ .......... SILT with rock fragments ...... ............. .............. ........... 570 31 . :.._.... ...... ..................................... sar 15 : ...............:..:.._... :....:..:...................... 565 oring terminated at 18.5 feet. No groundwater encountered at time of MO.. :....:..... ........ 20 drilling or after 24 hours. : .... :.. . . .....:......... 560 ..... :...:........ ..:............ _...:..:..: 25 :....:............. :....................:.. 555 ... ...........:..................:..:..: 30 ........ :....:..:......... :.......:.....:..:..:.. 550 7 7, ..:..:.....:....:....'...:..:..: 35 :....:.. ...:.... .....:.. ....:..:..:.. . 7 -7 7 545 :...:....:.....:...........:...:..:... SOIL TEST BORING NO. B-2 Sheet 1 of 1 1??? SOIL TEST BORING NO. B-3 INC PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 BLINNEWLALWAONS CLIENT. Chambers Engineering START: 6-3-11 END:-6-341 GNI7NE 0i. LOCATION: Healing Springs, North Carolina ELEVATION: 582 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: CoNEULTARrs DEPTH TO - WATER> INITIAL: AFT ER 24 HOURS:1 CAVING>3M V) ELEVATION! SOIL DESCRIPTION SOIL - STANDARD PENETRATION RESULTS DEPTH (FT) TYPE 2 BLOWSIFOOT 2 6 10 20 30 40 60 70 90 Very stiff, tan, very moist, fine sandy, silty CLAY - (residuum) 13 :... .............. ... ...... :.._ 580 13 .......: ?........._.... ...... 9 : . : : : : : - 8 g ............. ... ... .. .. .. .. : 5 ...:. ... .....:...:....:..:..:.....:....:....:...:. Very stiff, grayish-tan, clayey SILT 10 575 15 .............. ... _... 0 .......:...:..:..:..:. . Very hard PARTIALLY WEATHERED ROCK - no sample recovery ° sow 5010 10 Auger refusal at 9 feet No groundwater encountered at time of drilling :....'........ ................. or after 24 hours. ------------------- 570 ...... :...:.... :............. ....:..............._.. 15 ....... .......... :....:......... ....... 565 .....:...:....:....:....:....?... _......:...... 20 .... :. = ........ ......... ....:................... 660 ......:.. ................ .:............ 25 ......... ............ ..............:..:... 555 ...... :............ :............... ...... :.....:.. 30 .... ............ 550 :............:.............. ................... 35 :...:....:.......:...........:......:... 645 ...:....:.......:......_....:.. ...... :...:......... SOIL TEST BORING NO. B-3 Sheet 1 of 1 ,I L MINC. BUNNELL-LAMMONS ENGNEERRJ% INC. 6EommwwaA=Etrvnomme=L cmumvum ELEVATION DEPTH (FT) very 5 10 SOIL TEST BORING NO. B4 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 541 END:-6-3-11 LOCATION: Healing Springs, North Carolina ELEVATION: 583 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: v AFTER 24 HOURS: -T SOIL DESCRIPTION I SOIIE'?I STANDARDBPENE GOON RESULTS TYP WSIT Auger refusal at 11 feet. No groundwater encountered at time of drilling or after 24 hours. 560 35 MILENc SOIL TEST BORING NO. B-5 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 BUNNELL-LAMMONS CLIENT: Chambers Engineering START: 5-341 END:-5-3-11 EN6W0UMC% INC. LOCATION: Healing Springs, North Carolina ELEVATION. 582 GEOTECHIMALAIDEIIVFAMU RIL DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley CorrsixTANis DRILLING METHOD: DEPTH TO - WATER> INITIAL: Z AFTER 24 HOURS:1 CAVING>3M U) ELEVATION/ SOIL DESCRIPTION SOIL ii STANDARD PENETRATION RESULTS DEPTH (FT) TYPE 2 BLOWSIFOOT y 2 5 10 20 30 40 60 70 90 Stiff, tan, very moist, fine sandy, silty CLAY - (residuum) 5 580 5 .. .... ....:...:...:.....:... :...:.......:................... . Very stiff, grayish-tan, silty CLAY $ 8 _ ..:...:....................:.......: -• i 5 11 :50/0.5' :.-.:-.......... ......... .... ........ Very hard PARTIALLY WEATHERED ROCK which sampled as rock 010.5' 575 fragments :.. ....:.....:....:...:...:..:..:..:. . ------ :...:....:.. ........:....:....:...:.....sow 5010" ........ :...:..------ :....:........ Boring terminated at 8.5 feet No groundwater encountered at time of 10 drilling or after 24 hours. ..... .-=-... •.. •.........: :....:... ....:..:..:..:.. 570 ..... ....... .:........... 15 :...:.._ ................. 565 .. :...:....:.. _..............:...:...:..:....... 20 . .............. ..:... 560 ..... .......... ... _.....:....:...:......:..:.... 25 ......... ..... .......... :....:...:........:.. 555 .... ....:. 7. ........... 30 :...:.......... ............. ........... ..:.. :...:..:..: 550 ...... ......... :........... 35 :...:.........:....... ....-.-.-.:..: 545 ..... ......... 7 SOIL TEST BORING NO. B-5 Sheet 1 of 1 ,1LIBIN0. BUN1NELL-LALWAONS MMEERING, DIM 0WTE0WCAL"ENwtoNW3=kL COM MAIM ELEVATION/ DEPTH (FT) 5 575 10 570-- -16 665-- -20 645 fragments SOIL TEST BORING NO. B-6 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: "-11 END:-5-3-11 LOCATION: Healing Springs, North Carolina ELEVATION: 583 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: ?-z AFTER 24 HOURS: IT SOIL DESCRIPTION SOIL a STANDARD PENETRATION RESULTS I TYPE a BLOWSIFOOT 2 5 10 20 30 40 50 70 90 very moist, fine to medium sandy SILT - as Auger refusal at 6.0 feet. No groundwater encountered at time of drilling or after 24 hours. ,1LEINC. BUNNEL IA AWONS ENGINEERING, INC. GEOT90MCJLL"Emmmomo1L Cousummm ELEVATION/ DEPTH (FT) SOIL TEST BORING NO. B-6A PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 5-3-11 END: 5-3-11 LOCATION: Healing Springs, North Carolina ELEVATION: 583 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: Q. SOIL DESCRIPTION AFTER 24 HOURS: IT SOIL TYPE I-JI STARDBLO OTOTN RESULTS I ,1LIGINC. 13MINELL-LANNOM ENMEERNG, INC. GoomFwNCMJ MEwirto nwn CoN61l mwm SOIL TEST BORING NO. B-7 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: Ji1-7563-01 CLIENT: Chambers Engineering START: 4-28-11 END:-4-28-11 LOCATION: Healing Springs, North Carolina ELEVATION: 591 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: V AFTER 24 HOURS: -T SOIL TEST BORING NO. B-8 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 BUNNELL-LALSKI S CLIENT: Chambers Engineering START: 4-27-11 END: 4-27-11 ENGINEERN6, INC. LOCATION: Healing Springs, North Carolina ELEVATION: 596 6E0TECWMCALAmEkvnomwqnAL DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: CON ILTAM DEPTH TO - WATER> INITIAL: Q AFT ER 24 HOURS:1 CAVING>= w ELEVATIOW SOIL DESCRIPTION SOIL a STANDARD PENETRATION RESULTS DEPTH (FT) TYPE BLOWSIFOOT a y 2 5 10 20 30 40 60 70 90 TOPSOIL 595 Hard to very hrd, grayish-brown, fine to medium sandy SILT - = :. 14 ....... -.. • •- • •"• •` . •.... • •'• • •` (residuum) : • .' 1s ?.:...-...:..:.... 18 26 : : : : : : : 32 ... -... .. .. ..... .... . 5 ;.. .: 38 590 . 36 :-.... ............. Very hard PARTIALLY WEATHERED ROCK which sampled as 50?3 grayish-brown, fine to medium sandy SILT : : : . . . . . : .. .. .... .. .. .... .... .. ... 5012•• 10 :.-.:....:..:..:. ..........:...:..:..: 585 ...... ......... ............ :........:...:..:..:. .. ..... ....... ................ ............ solo" Boring terminated at 13.5 feet. No groundwater encountered at time of 15 drilling or after 24 hours. ............ • • . • • ..:......... 580 ...... :...:...................:..........:.....:.. 20 .... _ ........... : ...:......................... 575 :..: .......... :....:........... ....:......... 25 .......... ............... 570 ...:....:..............:...:......:....... 30 .......................... ......... ......:...... 565 :.. ............:..........:....... 35 :...:....:...:...........:.....:..:....... 560 :...:....:...'..:.....:...... - _...:..:...... . SOIL TEST BORING NO. B-8 Sheet 1 of 1 BUNNELL.-CANNONS ENGNEERNC% INC. Gar WARWALAt1oENYviximoxuu. COMM"" ELEVATION/ DEPTH (FT) Dense SOIL TEST BORING NO. B-9 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 4-27-11 END: 4-27-11 LOCATION: Healing Springs, North Carolina ELEVATION: 599 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATEW INITIAL: Q SOIL DESCRIPTION very nara YAK I IALLY WtA I MKtU KUCR Wmcn samplea as greenish-tan, fine to medium sandy SILT with rock fragments 590 10 AFTER 24 HOURS: -Y Boring terminated at 13.6 feet. No groundwater encountered at time of drilling or after 24 hours. 20 575-- -25 670-- -30 665-- --35 ,i L EINC. BUNNELL-LAIMMONS ENGNEERW^ INC. GEOTWMWALA 1Ewv01 mmn%L CONS UUMI i SOIL TEST BORING NO. B-10 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 4-28-11 END: 4-28-11 LOCATION: Healing Springs, North Carolina ELEVATION: 597 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: ?z AFTER 24 HOURS: -T ELEVATIOW SOIL DESCRIPTION SOIL a STANDARD PENETRATION RESULTS DEPTH (FT) TYPE a BLOWS/FOOT W 2 5 10 20 30 40 50 70 90 TOPSOIL Hard, reddish-tan, fine sandy, silty CLAY 1s ". •""' - - " -"' " 595 23 .....:..:.....'... .....:...... . ...... Very hard PARTIALLY WEATHERED ROCK which sampled as fine to :..:.:.. :...:....:...................... ...... : : . . . coarse sandy SILT with rock fragments Sow, ....._•.""• ...-"........'.:. 5 :...:....:....:.....:....:...:...:..:..: SQ/0.5' : . . : : : : : 10.5' ..... ... .... .. ... ..... .... ...... .......... 590 ...... :...:........ :...:.....:....:....:...:........ :.. Auger refusal at 8 feet. No groundwater encountered at time of drilling :......:.....:.. ...... :........... ..:.....:........ or after 24 hours. 10 ......... .....:........... ......... :..:... 585 ..............:.....:.. ..... :...:........ ........ 15 :...:.................-.... 580 ......:.:.. ..... :...:....:...:......... ............ 20 .......:...:..:..:. .... ........... ......... 575 ..... ......... ............. ..... ......... ...: 25 :...:...:........:.........:... ........ 570 :......._...:..:... ...... ...................... 30 :...:....:..:.. :.....:...._..:...:..:..:..:.. 565 . ..... ......... ............ :................. 35 ...:..........:.........:.... ...:..:.....:.. 560 :... ...... ......... .......... ...... .......... SOIL TEST BORING NO. B-10 Sheet 1 of 1 SOIL TEST BORING NO. B-11 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 4-28-11 END: 4-28-11 Bt1I11NELL-CANNONS LOCATION: Healing Springs, North Carolina ELEVATION: 594 EWMEERWG, ING GE0TECHwCAL"ENYNO1mmmL DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley C DRILLING METHOD: ONSULUMrtt DEPTH TO - WATER> INITIAL: AFTER 24 HOURS:1 CAVING>3W w ELEVATION! SOIL DESCRIPTION SOIL a STANDARD PENETRATION RESULTS DEPTH (FT) TYPE BLOWSIFOOT Q N 2 5 10 20 30 40 50 70 90 TOPSOIL ' Hard, reddish-tan, fine to medium sandy SILT with trace of clay and rock : 1 14 - fragments - (residuum) . - 16 19 41 . . . ? : 590 Very hard PARTIALLY WEATHERED ROCK which sampled as rock sort" .. .................... :.. . 5 fragments _ .. _ ..:.... .. . ............. :.. 50/5'. ... ..:...:....... .. .................. .. .......................... 585 O/0.5' 10 .. .........................:.. Auger refusal at 11 feet. No groundwater encountered at time of drilling :....:.. ...:.... ....:... ...... or after 24 hours. 580 .... :.....:.. ...... ........ :............. ....:...... 15 ...:... :........:...:.................. 575 :........._...........:...:..:...... 20 .. .. :.............. ...-. -.........:...... ------------- 570 :...:.... :..:..:.... ..............:... 25 .. :.. .. :...:....:...... .................. ......... 565 :...........:..:.....:....:...:......:..:..:.. 30 ... .: . .................. ..................... 560 ...:.........:........:..........:... 35 :...:........:..:.....:... i ...........:..:....:....:.. ....:..:. .:.:.. S .....i........ = ...:.......... L 555 .... :...:........:.._....:....:...:. . SOIL TEST BORING NO. B-11 Sheet 1 of 1 ,ILMINC SOIL TEST BORING NO. B-12 . PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 BUNNELL.-i.AIII?IItONS CLIENT: Chambers Engineering START: 4-27-11 END: 4-27-11 ENGNEERM INC. LOCATION: Healing Springs, North Carolina ELEVATION: 592 EOTDCINACALAWEW4vA*l 8M%L G DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley a DRILLING METHOD: CoNSIAMMf>s DEPTH TO - WATER> INITIAL: AFT ER 24 HOURS:1 CAVING>3m W ELEVATION/ SOIL DESCRIPTION SOIL ii STANDARD PENETRATION RESULTS DEPTH (FT) TYPE Q BLOWSIFOOT y 2 5 10 20 30 40 60 70 90 Hard to very hard, grayish-tan, fine to medium sandy SILT - (residuum) 18 _..:.._.:.. 590 ::.: :.:.• 21 ...... .......: _ _ .. .. ?.. .....:. ' • : 23 ........................................?..:..:.... . 28 5 : '.:.. 32 W2" Very hard PARTIALLY WEATHERED ROCK which sampled as rock 585 fragments ............. ...... ............. ......... 50/1" 580 Auger refusal at 11 feet. No groundwater encountered at time of drilling :.. _......:........... or after 24 hours. 15 .... :...:........ :....... ...................... :.. 575 ...... :...:............ ........:..........:.....:.. 20 :...:........ ........ :..............:....... 570 ........... ....:.......... :....:......:..:..: 25 :.. ....:......... :...:..:........................... 565 :....:..........:....... ...... :...:....:............. 30 .... :........:...... ......................... 560 :...:....:.....:...................:.....:.. 35 .... ......... :...:........ .......:. a U' :...:....:...:..:.....:....:...:...:........:.. 4 555 ...... :........:....................:..:.... J J SOIL TEST BORING NO. B-12 Sheet 1 of 1 ,1LEINO SOIL TEST BORING NO. B-13 . PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 BMNELLALALSKM CLIENT: Chambers Engineering START: END: C LOCATION: Healing Springs, North Carolina ELEVATION: 600 DOMEEM09 IN . OEOTECHWALANDFNYRONIIBm%L DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley COIIWLM S DRILLING METHOD: DEPTH TO - WATER> INITIAL: ?Z AFTER 24 HOURS: -T ELEVATION/ SOIL DESCRIPTION SOIL a STANDARD PENETRATION RESULTS DEPTH (FT) TYPE a BLOWSIFOOT 0 2 5 10 20 30 40 50 70 90 Hard, reddish-tan, silty CLAY - (residuum) 20 _........:.._...:..:..:..:.. 24 ?-..:....... ........ ...... _.... _........ 30 Very hard PARTIALLY WEATHERED ROCK which sampled as SWZ' grayish-tan, fine sandy SILT 20 Son" ............ ........... ."'.:.. 595 5 ...................:....................:.. ,. 5012" ..._.... ...... ............. ............. ........... ...:..........:....:....:...:...:..:..5010` 5010" 590 -10 :...:........ ....... ........:...:..:.....:.. .......... :....:..:.............. ........_.....??. 5013" Boring terminated at 13.8 feet No groundwater encountered at time of 585 15 drilling or after 24 hours. ..... ........:.....:.. . .. . . . . . 7' . 580- 20 :...:........:..:.....:.......:......:...... 575- 25 :...:. 7 7 570- -30 .... 565- -35 ......... :........... SOIL TEST BORING NO. B43 Sheet 1 Of 1 MILMINR WMINELL-LANNKM EWMEERR^ Mr. 0BDTxmmw _4MEIN wHw3fGLL CONRULTA M SOIL TEST BORING NO. B-14 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 4-27-11 END: 4-27-11 LOCATION: Healing Springs, North Carolina ELEVATION: 603 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: 7 AFTER 24 HOURS: X ELEVATION/ SOIL DESCRIPTION SOIL STANDARD PENETRATION RESULTS DEPTH (Fn TYPE a BLOWSIFOOT 1 2 5 10 20 30 40 50 70 90 Hard, reddish-gray and tan SILT - (residuum) 10 :..:..:..:.. ............. .:......... :....:........ 16 ?.:..:...:..:..:..:.. 19 600 ...... :...:....:...:.............. :.......:..:..:..:.. 14 : : : : _ _ _ _ : : : : 23 ... .... ... .. ..... .... . . ... .. .. .. .. 5 21 26 ...:..:.....:.. .... ................... 28 31 595 :...:....:...:...:.....:........:......:.....:.. 16 Very hard PARTIALLY WEATHERED ROCK which sampled as 35 .sas 10 grayish-tan SILT with rock fragments sols^ :. - 590 ...... :...:....:.. ...... _.... 30 500, : 5011, . ...... ............ ......... ....... ............ . 585 ........... ..:........:...... .:..:.. 5010" : : : : : : : Boring terminated at 18.5 feet No groundwater encountered at time of ..... ... .... ... ... ..... . .. .................... 20 drilling or after 24 hours. 580 :...:...................:.......:..:...... 25 ............_...:..:... .................... 575 :...:.......:............:...:...:..:..: 30 ....:... .................:....... ....:..:..:.... 570-- :..:.. . .......................... 35 .... :...:....:...:........ :....:.............. .... 565 :....:...:... ..................:..: SOIL TEST BORING NO. B-14 Sheet 1 of 1 BLEW. BUNNELL-CANNONS ENONEEMNC% WIC. GEOTW IW.ALAwEvAwwm3f %L COMULTIwrs SOIL TEST BORING NO. B-15 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 4-27-11 END: 4-27-11 LOCATION: Healing Springs, North Carolina ELEVATION: 595 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL:. AFTER 24 HOURS: t ELEVATION/ SOIL DESCRIPTION SOIL ii STANDARD PENETRATION RESULTS DEPTH (FT) TYPE ¢ BLOWSIFOOT w 2 5 10 20 30 40 50 70 90 TOPSOIL y' Firm, reddish-tan, very moist, fine to medium sandy, silty CLAY - 3 •..:. (residuum) 3 ..:.._.....--:-..._.._..._..-.._..... 3 Very hard, greenish-gray, fine sandy SILT 27 : : . . •.• 39 ... .... .. ....... ...... 590 -5 : 35 ......................._...:..=.... :. Very hard PARTIALLY WEATHERED ROCK which sampled as I5.5' . . .. .... ............ .. ..............._...:..:30755 greenish-gray, fine to medium sandy SILT with rock fragments ................. • • •.. • . 5014" ............................... ...._..._.... _..... 3aa?• 586 -10 .:.... :.................. ................... '7 7 5011" ............. ............._....._. ... .... Boring terminated at 13.6 feet. No groundwater encountered at time of . . 580 -15 drilling or after 24 hours. ...:.. : 575 -20 . .... :...:........... ........................... 670- 25 :...:.... . ...............:.......:.....:... . 665- 30 .............. ....... : 660- 35 :...:..........:...... SOIL TEST BORING NO. B-15 Sheet 1 of 1 • • • • • • • • • • • • • 11LMINO- 11U NNELL-LAMMONS MMEERNG, INC. QEOTWw*cm AwENYRCta EIM c4"L LTANTa SOIL TEST BORING NO. B-16 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 4-28-11 END: 4-28-11 LOCATION: Healing Springs, North Carolina ELEVATION: 595 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: Q AFTER 24 HOURS:1 CAVING>gM ELEVATIONI SOIL DESCRIPTION SOIL ii STANDARD PENETRATION RESULTS DEPTH (FT) TYPE Q BLOVMFOOT N 2 5 10 20 30 40 50 70 90 TOPSOIL ' Very stiff, brown, fine sandy SILT -(residuum) . .: ; - 12 :: '. 1-3 14 .................... . .... Very stiff, brown, silty CLAY . 11 : : . . : : : : : : : : 14 .... .. .. .... .... ... ... .. .. . .. ... ...... : 690 -5 15 sai• . . : . : : : : : Very hard PARTIALLY WEATHERED ROCK which sampled as 50/1" .... .. . ... .... ... ... . _ ..... ... .. greenish-gray rock fragments .....: .............................. :..:.. .................... 1. 585 -10 :...:........ .............. ........:..:. :...:............:....:....:...........:srno.s 0.5' .. _ : : : : : : : Boring terminated at 13.5 feet. No groundwater encountered at time of ... .... .. .. .... .... ... ... 580 -15 drilling or after 24 hours. •.•• •.•'•..._ ......•• •• • = i 576 -20 .... :...:....:..... .............. ....:..:..:..:.. 570- 25 :...:....:...:.......:....:.......:..:..:.... 665- 30 :...:..........:.....:....:........... ..._..:.. 560- 35 ...:.........:.........:.........:.... SOIL TEST BORING NO. B-16 Sheet 1 of 1 ,I L MINC. BUNNELL-LAMMONS ENGNEERBIC, INC. GWMCH ,uAwEwAWNM0 ?L COrISiBTAMrs SOIL TEST BORING NO. B-18 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 4-2841 END:-4-28-11 LOCATION: Healing Springs, North Carolina ELEVATION: 598 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: Q AFTER 24 HOURS: -T ELEVATIONI SOIL DESCRIPTION SOIL ii STANDARD PENETRATION RESULTS DEPTH (FT) TYPE Q BLOWSIFOOT 2 5 10 20 30 40 50 70 90 TOPSOIL Hard to very hard, grayish-tan, fine sandy, silty CLAY With weathered 14 ..... -=..,......... rock fragments 18 ? ..:...:..:..:..:.. 21 595 .....:...:....:...:..:....:....:..._...:..:..: 19 : : . : : : : : : .... .. ... .... .... ... ... ... 5 48 :...:....:....:....:....:......: . . . : : : : : Very hard PARTIALLY WEATHERED ROCK which sampled as rock 5012" .... .... ._.. .. ... ..... ... .. .. . fragments ...... :...:....:..................... ....... 590 ...... :...:..........:...... ....:........... :..„ 5011" 10 :...:................ ....:........:...... 585 .............. ..._...:.......... ........... :.. . 5010" 1 :...:................:...._.........:.....:.. 5 Boring terminated at 15 feet. No groundwater encountered at time of ...... :...:....:...:......... ....:..:......:...... drilling or after 24 hours. 580 ..:.................. ..... :...:........:.......... 20 :...:...:.....:.......:......:.....:.. ......... 575 .....:...:........:..:.....:....:...:......:...... 25 :...:................:....:...:...: 570 7 -7 ..... ............. ......... .............. ......:.. 30 :....... ... ..... ........ ..... 565 ..... :...:..... ..:........ .............. :..:... 35 :....:.........................:..:..:.. 660-- 7' 7, ...:..:...... '7 - - --- - - - - - - - SOIL TEST BORING NO. B-18 Sheet 1 of 1 ,3LIBINC. BUNNELL-LAWAONS ENGINEERWG, INC. GEoT=Hw-m AmEwimomm m Co1Mmvxm SOIL TEST BORING NO. B-19 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 43-11 END:-4-3-11 LOCATION: Healing Springs, North Carolina ELEVATION: 596 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: V AFTER 24 HOURS: t ELEVATION/ SOIL DESCRIPTION SOIL ii STANDARD PENETRATION RESULTS DEPTH (FT) TYPE ¢ BLOWS/FOOT y 2 5 10 20 30 40 50 70 90 TOPSOIL > ?' •> ?' 595 Hard, tan, fine to medium sandy SILT - (residuum) 15 7 7' - 16 : : : : 18 ?. ....... .. .... .. Hard, tan, silty CLAY : - 23 : : : : : : : : 29 ... .... .---------- .... ... ... .. .. .... 5 31 590 78 :......... ...... :...:..... .................. 21 _.? ......:...... 20 Very hard PARTIALLY WEATHERED ROCK which sampled as rock " :. _ ..........:. _......:....:......:. 'a fragments 50/1 10 .................:.:. 585 :...:..:....:....:...:...:..:.._..:.. 010.5' : : : : . . . Boring terminated at 13.6 feet. No groundwater encountered at time of ... .. ..... .... .. ... . 15 drilling or after 24 hours. :- •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heet 1 of 1 ,I L IGINC. BUNN ENMEER9IG, INC. G0"EaracALA Brjwwmwwm conuum" SOIL TEST BORING NO. B-20 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11.7563-01 CLIENT: Chambers Engineering START: 4-28-11 END: 4-28-11 LOCATION: Healing Springs, North Carolina ELEVATION: 597 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: Q AFTER 24 HOURS:1 ELEVATION/ SOIL DESCRIPTION SOIL ii STANDARD PENETRATION RESULTS DEPTH (FT) TYPE Q BLOWSIFOOT 0 2 5 10 20 30 40 50 70 90 TOPSOIL Hard, reddish-tan, fine to medium sandy SILT - (residuum) :: • .::. 21 .. "' .... _.... _.. •. 595 _ .: • 18 23 :...:....:.... . . 20 : : : : : : Very hard PARTIALLY WEATHERED ROCK which sampled as rock 5013" .... .... ... ... . - - ..... . ........ : : : : . . : : . 5 fragments .... . .... ... .... ... ... ... ..... 23 :...:.._ .....:....:...:...: . = ..soli°• 5011" : : : : : : . . 590 .. ... ..... .... .. ... .... ..... ....... ...... :...:....:...:........:.................... .Wr 5011" 10 :...:....:.................:...:.._.._... 585 ....:...:....:.....:.........:..:...:..:.....:.. 010.5' Boring terminated at 13.6 feet. No groundwater encountered at time of : : : : : : : : 15 drilling or after 24 hours. ..... ... .. . ... .... .. .. .... .... . - 580 :...:....: ............. :....:... _............ 20 :..:..:.. ....:...:....:...:..:.....:....:.......... 575 ........ ..:....:...:..:.....:...........:..:.....:.. 25 :...:....:.............:..._...:..:..:... 570 :..:.. :.... .........:............ . 30 :...:.......:..:.....:....:.. _...:..:..:... 565 :...:.. _. • ..... ...:............ . 35 :..........:.....:.. ............... 560 :..:.....:....:..:...:..:.._... ...... :...:......... SOIL TEST BORING NO. B-20 Sheet 1 of 9 IBLEINC. BU KNELL -LALUMS E1NGNEERN6, INC. CvWnWWWALArOEwmomm9cu L CofllsuLTA m ELEVATION/ DEPTH (FT) SOIL TEST BORING NO. B-21 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 4-28-11 END: 4-28-11 LOCATION: Healing Springs, North Carolina ELEVATION: 596 DRILLER: Metro Drill, inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: ?z SOIL DESCRIPTION AFTER 24 HOURS: 1. SOIL lal STANDARD PENETRATION RESULTS TYPE BLOWS/FOOT GRAVEL 595 Hard, reddish-tan, silty CLAY - (residuum) 19 :...:..... - - - - - ...... - I x 23 31 _..._._....-:fir' Hard, reddish-tan, fine sandy SILT 17 = 21 5 .: 33 590 ery hard PARTIALLY WEATHERED ROCK which sampled as gray, fine :. 50/3" 5oi3" .............. . ...... ..... ...........:..: . sandy SILT with rock fragments ............... .:... :...._......:..:.. . :...:....:............. 50/2" 10 :...:........ :.._......... :...:...:..:..:..:.. 585 ...............:....:...:......:..:..:.. ....:........:...:........:....:....:...:..7 'f"J" 5011" Boring terminated at 13.6 feet. No groundwater encountered at time of 15 drilling or after 24 hours. .... ........ .................................. .. 580 :........:.. _.. _.....:....:..:..._..:..:..:.. ...... 20 ......................... _...._......_..:..: 575 ..... .. ....:..:....:.. ..... ....:....:...:........ 25 ..............:.....:.. .......................... 570 :....:...:......:..:..:.. ...... :........:........... 30 :...... ................................... ....... 565 ...... .............. ................:......:... 35 7 7 ....:....:..........:.................: 560 :............................ ....:..:...... . SOIL TEST BORING NO. B-21 Sheet 1 of 1 ,3LIGINC. BUNNELL-LAWNS ENGINEERING, DOM CWZ=HNICALAwEW4vAm qmU. coruu mmm SOIL TEST BORING NO. B-22 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 4-2741 END:-4-27-11 LOCATION: Healing Springs, North Carolina ELEVATION: 595 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: ?z AFTER 24 HOURS:1 CAVING>ZW ELEVATION/ SOIL DESCRIPTION SOIL a STANDARD PENETRATION RESULTS DEPTH (FT) TYPE Q BLOWSIFOOT 2 5 10 20 30 40 50 70 90 GRAVEL Hard, reddish-tan, clayey SILT - (residuum) 10 - - - 14 ?...:...:...:..:..:..:.. 16 Hard, reddish-tan, fine sandy SILT 15 : : : : : 16 ..... ... .... ... ... 590 -5 26 Very hard PARTIALLY WEATHERED ROCK which sampled as rock " fragments soil ...... ..................................... :..: :...:............ :.....:....:....:...... : 5W 5a2.. 585 -10 :...:....: .. ........:....:...... . ..:..: . :...:....:...:..............:...:...:..:.. 50H" Boring terminated at 13.6 feet. No groundwater encountered at time of . . . . : 580 15 drilling or after 24 hours. . . . . . . .. . . . . .... ....:... . . .... ... . - 575 -20 .... ....... .............. :....:.........:.....:.. 570- -25 ........:..:. 565- 30 :....:............:.......:. 560- 35 :...:..........:....:..........:..:...... SOIL TEST BORING NO. B-22 Sheet 1 of 1 MILMINO. BLINNELL -LAMMONS EN GINEEMNIG9INC. 13eoT -mAwE.rn xau CONMULTAM SOIL TEST BORING NO. B-23 PROJECT: Ethanol Storage and Transfer Facility PROJECT NO.: J11-7563-01 CLIENT: Chambers Engineering START: 4-28-11 END: 4-28-11 LOCATION: Healing Springs, North Carolina ELEVATION: 595 DRILLER: Metro Drill, Inc., SP LOGGED BY: G. Weekley DRILLING METHOD: DEPTH TO - WATER> INITIAL: ?z AFTER 24 HOURS:1 CAVING>;?W ELEVATIOW SOIL DESCRIPTION SOIL a STANDARD PENETRATION RESULTS DEPTH (FT) TYPE BLOWSIFOOT 2 5 10 20 30 40 50 70 90 GRAVEL IM : : Very stiff, grayish-tan, fine sandy, clayey SILT - (residuum) 7 :...:. ...... $ : : : : ... ..........?...:....:........:..:..:.. 11 32 50/7 . : :.. . . : : Very hard PARTIALLY WEATHERED ROCK which sampled as gray, fine sae" ... . . . .. . . . . . . .. . . . . . . . ..... ... . 59o- -6 sandy SILT with rock fragments = .. _..:.... -... •:.. • : = = 5or : : : _ : : : : : 5013" .... ....._.... .... ... .. .... ... ... ..... ... :...:....:...:...............:...:..:.. 2. 50/2' 685 -10 :...:....:............. ............... :..... 50/2 Boring terminated at 13.7 feet No groundwater encountered at time of . : : _ : 580- -'15 drilling or after 24 hours. ...:....... ... . . . . .. . . . . . . . . . 676 -20 :...:......... ......... :....:....... :..:..:... 670- -25 ......................... ...... _...:..:...... :.. 565- 30 ............. :...:.._.....:..................... 560- 35 :...:.... . ..:...:.....:....:...:...:..:..: . .... SOIL TEST BORING NO. B-23 Sheet 1 Of 1 KEY TO SOIL CLASSIFICATIONS AND CONSISTENCY DESCRIPTIONS BUNNELL-LAMMONS ENGINEERING, INC. GREENVILLE, SOUTH CAROLINA Penetration Resistance'` Relative Blows per Foot Density SANDS 0 to 4 Very Loose 5 to 10 Loose 11 to 20 Firm 21 to 30 Very Firm 31 to 50 Dense over 50 Very Dense Penetration Resistance" Consistency Blows per Foot SILTS and CLAYS 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 'ASTM D 1586 KEY TO DRILLING SYMBOLS ® Grab Sample NR = No reaction to HCL V Groundwater Table at Time of Drilling ® Split Spoon Sample NA = Not applicable NS = No sample . Undisturbed Sample Groundwater Table 24 Hours after Completion of Drilling KEY TO SOIL CLASSIFICATIONS Well-graded Gravel Low Plasticity Clay Clayey Silt Silty Sand GW CL MH IM SM 0 <?J? Poorly-graded Gravel O o GP Partially Weathered Rock BLDRCBBL CH h Plasticity Clay Poorly Graded Sand SP Particle Size Identification Boulder: Greater than 300 mm Cobble: 75 to 300 mm Gravel: Coarse -19 to 75 mm Fine - 4.75 to 19 mm Sand: Coarse - 2 to 4.75 mm Medium - 0.425 to 2 mm Fine - 0.075 to 0.425 mm Silt & Clay. Less than 0.075 mm Sandy Clay CLS Sandy Silt MLS Topsoil TOPSOIL Silty Clay CL-ML Silt ML Sand SW Clayey Sand Sc Bedrock Limestone BEDROCK LIMESTONE Trash MUCKPEAT Fill FILL FIELD EXPLORATION PROCEDURES SOIL TEST BORINGS The borings were made by mechanically twisting a continuous flight steel auger into the soil. Soil sampling and penetration testing were performed in general accordance with ASTM D 1586. At assigned intervals, soil samples were obtained with a standard 1.4-inch I. D., 2-inch O. D., split-tube sampler. The sampler was first seated 6 inches to penetrate any loose cuttings, and then driven an additional 12 inches with blows of a 140-pound hammer falling 30 inches. The number of hammer blows required to drive the sampler the final 12 inches was recorded and is designated the "penetration resistance." The penetration resistance, when properly evaluated, is an index to the strength of the soil and foundation supporting capability. Representative portions of the soil samples, thus obtained, were placed in glass jars and transported to the laboratory. In the laboratory, the samples were examined by a geotechnical engineer to verify the field classifications of the driller. Boring Records are attached, showing the soil descriptions and penetration resistances. IRLIE REV. 3-23-10 INC. TEST DATA SHEET pH (ASTM D4972, Method A) Resistivity (ASTM G187) PROJECT NAME: Ethanol Facility DATE: 5-23-11 PROJECT NO: J11-7563-01 TECHNICIAN: JM SAMPLE DEPTH (F TEMP pH pH VOLT AMP ohm RESISTIVITY ID FROM TO -c (Water) (cal. cm. sar) READING READING (r) (R)(ohm-cm) B-18 1.0 2.5 B-18 3.5 5.0 20.4 4.5 3.3 5.96 0.260 22923 23400 B-21 1.0 2.5 20 B-23 1.0 2.5 .4 5.7 4.4 6.92 0.650 10646 10900 R) RESISTIVITY CALCULATION FORMULAS SOIL BOX CONSTANTS Volts rA Amps/1000 L A = 7.03cm L = 6.88cm INTERMODAL ETHANOL TERMINAL HEALING SPRINGS, NORTH CAROLINA V. Operation and Maintenance Agreements INTERMODAL ETHANOL TERMINAL HEALING SPRINGS, NORTH CAROLINA VI. Construction Drawings RAIL YARD ACCESS ROAD BIORETENTION Permit No: (to be assigned by DWQ) III. REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Pagel Plan Initials Sheet No. PNB P-01 1. Plans (1" - 50' or larger) of the entire site showing: Design at ultimate build-out, Off-site drainage (if applicable), Delineated drainage basins (include Rational C coefficient per basin), Cell dimensions, Pretreatment system, High flow bypass system, Maintenance access, Recorded drainage easement and public right of way (ROW), Clean out pipe locations, Overflow device, and Boundaries of drainage easement. PNB T-26 2. Plan details (1" = 30' or larger) for the bioretention cell showing: Cell dimensions Pretreatment system, High flow bypass system, Maintenance access, Recorded drainage easement and public right of way (ROW), Design at ultimate build-out, Off-site drainage (if applicable), Clean out pipe locations, Overflow device, and Boundaries of drainage easement. Indicate the P-Index between 10 and 30 PNB T-23 3. Section view of the bioretention cell (1" = 20' or larger) showing: Side slopes, 3:1 or lower Underdrain system (if applicable), and Bioretention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable), SHWT level(s), and overflow structure] PNR See 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The Report results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. All elevations shall be in feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in situ soil must include: Soil permeability, Soil composition (% sand, %fines, %organic), and P-index. _n/ a To be 5. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing: grassed A variety of suitable species, Sizes, spacing and locations of plantings, Total quantity of each type of plant specified, A planting detail, The source nursery for the plants, and Fertilizer and watering requirements to establish vegetation. PNB C - 3 0 0 -105. A construction sequence that shows how the bioretention cell will be protected from sediment until the entire drainage area is stabilized. PNB See 7. The supporting calculations (including underdrain calculations, if applicable). Report PNB See g. A copy of the signed and notarized inspection and maintenance (I&M) agreement. Report 9. A copy of the deed restriction. Form SW401-Bioretention-Rev.7 Part III, Page 1 of 1 ALL SAND FILTERS Permit No. (to be provided by DWQ) lll. REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Initials Pagel Plan Sheet No. PNB P-01 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter chamber, - Maintenance access, - Flow splitting device, - Proposed drainage easement and public right of way (ROW), - Design at ultimate build-out, - Off-site drainage (if applicable), and - Boundaries of drainage easement. PNB T-19, 2. Plan details (1" = 30' or larger) for the sand filter showing: T-20, - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter T-21 chamber, - Maintenance access, - Flow splitting device, - Vegetative filter strip dimensions and slope (if SA waters), - Proposed drainage easement and public right of way (ROW), - Design at ultimate build-out, - Off-site drainage (if applicable), and - Boundaries of drainage easement. PNB T-23 3. Section view of the sand filter (1" = 20' or larger) showing: - Depth(s) of the sedimentation chamber and sand filter chamber, - Depth of sand filter media, - Connection between the sedimentation chamber and the sand filter chamber and weir elevation, - SHWT elevation, - Outlet pipe, and - Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if applicable). PNB See Report 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. PNB See Report 5. Supporting calculations (including drainage calculations) PNB See Report 6. Signed and notarized operation and maintenance (0&M) agreement 7. A copy of the deed restrictions (if required). Form SW401-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1 TRUCK LOADING AREA BIORETENTION Permit No: (to be assigned by DWQ) III. REQUIRED ITEMS CHECKUST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Pagel Plan Initials Sheet No. AGD P-0 1 1. Plans (1" - 50' or larger) of the entire site showing: Design at ultimate build-out, Off-site drainage (if applicable), Delineated drainage basins (include Rational C coefficient per basin), Cell dimensions, Pretreatment system, High flow bypass system, Maintenance access, Recorded drainage easement and public right of way (ROW), Clean out pipe locations, Overflow device, and Boundaries of drainage easement. AGD C - 3 0 0 -19. Plan details (1" = 30' or larger) for the bioretention cell showing Cell dimensions Pretreatment system, High flow bypass system, Maintenance access, Recorded drainage easement and public right of way (ROW), Design at ultimate build-out, Off-site drainage (if applicable), Clean out pipe locations, Overflow device, and Boundaries of drainage easement. Indicate the P-Index between 10 and 30 AGD C - 3 0 0 -103 Section view of the bioretention cell (1" = 20' or larger) showing: Side slopes, 3:1 or lower Underdrain system (if applicable), and Bioretention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable), SHWT level(s), and overflow structure] AGD See 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The Report results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. All elevations shall be in feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in situ soil must include: Soil permeability, Soil composition (% sand, %fines, %organic), and P-index. n/a To be 5. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing: grassed A variety of suitable species, Sizes, spacing and locations of plantings, Total quantity of each type of plant specified, A planting detail, The source nursery for the plants, and Fertilizer and watering requirements to establish vegetation. AGD C - 3 0 0 -1 %. A construction sequence that shows how the bioretention cell will be protected from sediment until the entire drainage area is stabilized. AGD See 7. The supporting calculations (including underdrain calculations, if applicable). Report AGD See g. A copy of the signed and notarized inspection and maintenance (AM) agreement. Report 9. A copy of the deed restriction. Form SW401-Bioretention-Rev.7 Part III, Page 1 of 1