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HomeMy WebLinkAboutSW6130104_HISTORICAL FILE_20130311STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW�,_/_�� DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD 96- futzu _/_0 rnMK2��%a.t � Application Completeness Review V First Submittal ❑ Re -submittal Date Received: / /3 Date Reviewed: / /8 / By Bill Diuguid DevelopmenUProjectName: OF Cs 7 Receiving stream name S7-gIJA1c_7-s Car —Ex ssification: G :?iverBasin: cFIPE FF-A)t B,4xl^) For post -construction requirements, a program will be deemed compliant for the areas where it is implementing any of the following programs: WS-I, WS-II, WS-III, WS-IV, HQW, ORW, Neuse River Basin NSW, Tar -Pamlico River Basin NSW, and the Randleman Lake Water Supply Watershed Nutrient Management Strategy, High Density Projects that require a 401/404 within an NSW require 85% TSS, 30% TN and 30% TP removal. T&E Species (Goose Creek, Waxhaw Creek or Six Mile Creek Water Sheds): Latitude and Longitude: .85�A/ 7? O/ .2- W Jurisdiction -dRT- BRhGG Project Address: C* 5- s+;�K c1ou f lKA4_rOar6 R 43/ALP,[ Sa AQTC r4 Engineer name and firm: PAViD CoLX)r. P8, L.8yQC_ Q/Jen.YCHA Ai- 3s223 Phone: 2&6 -25/- 450o Email: co �� co., Is the project confirmed to be in the State MSI Stormwater ermit jurisdiction? Yes or ❑ o ❑ Low Density (no curb and gutter) ❑ Low Density with curb and gutter outlets [yFiigh Densit ❑ Other -a-401/404 impacts to surface waters, wetlands, and buffers (add language to cover letter and/or add info letter) Check for $505.00 included riginal signature (not photocopy) on application Legal signature (Corporation-VP/higher, Partnership -General Partner/higher, LLC-member/manager, Agent). MiLiTNRY If an agent signs the application, a signed letter of authorization from the applicant must be provided which includes the name, title, mailing address and phone number of the person signing the letter. -5 ' For subdivided projects, a signed and notarized deed restriction statement Sealed, signed & dated calculations V Correct supplement and O&M provided for each BMP on site (check all that were provided & number of each) ioretention ® Q Dry Detention Basin ❑ Filter Strip ❑ Grass Swale ❑ Infiltration Basin ❑ Infiltration Trench ❑ Level Spreader ❑ Permeable Pavement ❑ Restored Riparian Buffer f� ❑ Rooftop Runoff Management ❑ Sand Filter RECEIVED ❑ Stormwater Wetland �Gvet Detention Basin ❑ Low Density MAR 1 12013 ❑ Curb Outlet ❑ Off -Site DENR-FAYETTNLLEREGIONALOFFICE ❑ NCDOT Linear Road TWO sets of sealed, signed & dated layout & finish grading plans with appropriate details d-/ Narrative Description of stormwater manag�ent provided lV SOIIS report,, geotech information provided l sr.Hs =w-- Wetlands delineated or a note on the plans or in the accompanying documents that none exist on site and/or adjacent property [a" Details for the roads, parking area, cul-de-sac radii, sidewalk widths, curb and gutter; V Dimensions & slopes provided drainage areas delineated ❑ Pervious and impervious reported for each ❑ Areas of high density V BMP operation and maintenance agreements provided Application complete ❑ Application Incomplete Returned: (Date) Comments Oct 29 2012 Revision, Bill Diuguid ge- 7 r12U -Ao - — Application Completene Review First Submittal ❑ Re -submittal Date Received: > /3 Date Reviewed: / /8 / By Bill Diuguid— Development/ProjectName:OOF Co e T Receiving stream name Cibssification: C- River Basin: CAPE �,rJq Q g vsv:l For post -construction requirements, a program will be deemed compliant for the areas where it is implementing any of the following programs: WS-I, WS-II, WS-III, WS-IV, HOW, ORW, Neuse River Basin NSW, Tar -Pamlico River Basin NSW, and the Randleman Lake Water Supply Watershed Nutrient High Density Projects that require a 401/404 within an NSW require 85% TSS, 30% TN and 30% TP removal. T&E Species (Goose Creek, Waxhaw Creek or Six Mile Creek Water Sheds): it/1/1 Latitude and Longitude: 35 OS /9.!,(/ 7f o/ SZ W Jurisdiction -dRT A+ BCGCr Project Address: CA-s* eF ac s� ;�J��ou ivacT&rB s.. sIYcI Engineer name and firm: DAV/D GyLIiY'. PE, 40Y-AMiHAm Aj- 3-C283 rnone: <4--n ys go -_ma,, co av b d. c o.vi Is the project confirmed to be in the State MSI Stormwater ermit jurisdiction?2, Yes or ❑�Den:s:iitd) ❑ Low Density (no curb and gutter) ❑ Low Density with curb and gutter outlets L 4} 1igh❑ Other a--401/404 impacts to surface waters, wetlands, and buffers (add language to cover let er an adinfo letter) o: UA 32 °Jo f 8 zA s,tt 'Check for $505.00 included riginal signature (not photocopy) on application Legal signature (Corporation-VP/higher, Partnership -General Partner/higher, LLC-member/manager, Agent). M;L-ITN RV If an agent signs the application, a signed letter of authorization from the applicant must be provided which includes the name, title, mailing address and phone number of the person signing the letter. -tj For subdivided projects, a signed and notarized deed restriction statement a,' Sealed, signed & dated calculations V Correct supplement and O&M provided for each BMP on site (check all that were provided & number of each) rly ioretention ® w f uao�ss.oP�cA.J S f j GY Dry Detention Basin ❑ Filter Strip ❑ Grass Swale ❑ Infiltration Basin ❑ Infiltration Trench ❑ Level Spreader El Permeable Pavement ❑ Restored Riparian Buffer ❑ Rooftop Runoff Management ❑ Sand Filter ❑ Stormwater Wetland /Vet Detention Basin ❑ Low Density ❑ Curb Outlet ❑ Off S' 'RECEIVED 1 12013 to DENR-F ElAY NCDOT Linear Road ETTEVILLEREGIO,NAL OFFICE /Two sets of sealed, signed & dated layout & finish grading plans with appropriate details d Narrative Description of stormwater manag�ent provided Soils report,✓geotech information provided 6* R•Hs + F, � Wetlands delineated or a note on the plans or in the accompanying documents that none exist on site and/or adjacent property 3K Details for the roads, parking area, cul-de-sac radii, sidewalk widths, curb and gutter; Dimensions & slopes provided o%Drainage areas delineated ❑ Pervious and impervious reported for each ❑ Areas of high density � BMP operation and maintenance agreements provided Application complete ❑ Application Incomplete Returned: (Date) Comments Oct 29 2012 Revision, Bill Diuguid MIR Date: January 17, 2013 LBYD Re: Stormwater Management Permit Package Contents SOF Communications Training Facility Fort Bragg, NC Please find enclosed the following package contents for the Stormwater Management Permit Submittal for the SOF Communications Training Facility at Fort Bragg: Package Contents: 1. Check for $505 2. Original - SWU-101 Permit Application Form 3. Copy - SWU-101 Permit Application Form 4. Required Items Checklist 5. Signed and Executed O&M Agreements (DAs/BMPs 1, 2, 3, and 4) 6. Stormwater Management Plan and Computations (Contains Supplemental Forms, supporting calculations, soils report, etc.) 7. 2 sets of full-sized sets of construction drawings If you need additional information, or have any questions, please contact me (dcoley@lbyd.com; 205-251-4500) Thank you, David M. Coley, PE "'tGEIVED NAR 1 12013 DENR -FAYETTEVILLE REGIONAL OFFICE LBYD, Inc. - 710 South 30^ Street - Brmingham, Alabama 35233 - Phone (2051 251-4500 Birmingham Atlanta www.lbyd.com Huntsville Tampa Bay Permit Number: v (to be provide by DWQ) Drainage Area Number: 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: Potentialproblems: How I will remediate theproblem: The entire BMP Trash/debris is present. 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). RECEIVED MAR 1 1 2013 Form SW401-Bioretention O&M-Rev.3 DENR-FAYETiEVILLEREGIONALOFFICE Page 1 of 4 BMP element: Potentialproblems: How I will remediate theproblem: 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 grad n . 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: soils and mulch Mulch is breaking down or has floated away. Spot mulch if there are only random 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: Potentialproblems: How I will remediate theproblem: The underdrain system (if applicable) Clogging has occurred. Wash out the underdrain system. 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-Biorctention 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. 1 agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:SOF Communications Training Facility BMP drainage area number: Print name:Mr. David Heins Title:Ft Braga Directorate of Public Works (DPW) / Chief -Environmental Division Address:2175 Reilly Road Stop A, Fort Bragg, NC 28310-5000 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. 1, , a Notary Public for the State of County of , do hereby certify that personally appeared before me this day of I , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, SEAL My commission Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4 Permit Number: (to be provided by DWQ) Drainage Area Number: 7 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 twiceweekly if needed until the plants becomestablished �q qr�y six weeks). � \111V(/ Snow, mulch or any other material will NEVE 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: Potentialproblems: How I will remediate theproblem: The entire BMP Trash/debris is present. 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). DECEIVED MAR 112013 Form SW401-Bioretention O&M-Rev.3 DENR-FAYEfTEOLLEREGIMALOFFICE Page I of 4 BMP element: Potentialproblems: How I will remediate theproblem: 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 VlantimZ. 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: Potentialproblems: How I will remediate theproblem: 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) 1 acknowledge and agree by my signature below that 1 am responsible for the performance of the maintenance procedures listed above. 1 agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:SOF Communications ,✓�aTr/aiinin Fg acility 2 �^'V _ BMP drainage area number:e Print name:Mr. David Heins Title:Ft Bragg Directorate of Public Works (DPW) / Chief -Environmental Division Address:2175 Reilly Road Stop A, Fort Bragg, NC 28310-5000 Date: 1"U'11,1 [S 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. a Notary Public for the State of County of , do hereby certify that personally appeared before me this day of , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, SEAL My commission Form SW401-Bioretention t&M-Rev. 2 Page 4 of 4 Permit Number: (to be provided by DWQ) Drainage Area Number: 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: ED - Immediately after the bioretention cell is esta= nts w' 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: Potentialproblems: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the bioretention cell Areas of bare soil and/or erosive gullies have formed. Regrade the soil if necessary to 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). RECEIVED 14AR 1 1 2013 Form SW401-Bioretention O&M-Rev.3 DENR-FAYETTEMLLE REGIONAL OFFICE Page I of 4 BMP element: Potentialproblems: How I will remediate theproblem: 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 Ianting media. Form SW401-Bioretention O&M-Rev.3 Page 2 of 4 BMP element: Potentialproblems: How I will remediate theproblem: 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. 1 agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:SOF Communications TrainingFacility acility BMP drainage area numberX Print name:Mr. David Heins Title:Ft Bragg Directorate of Public Works (DPW) / Chief -Environmental Division Address:2175 Reilly Road Stop A, Fort Bragg, NC 28310-5000 Date: zSe4 Al 13 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. day of a Notary Public for the State of County of , do hereby certify that personally appeared before me this and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, SEAL My commission expires Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4 Permit Number: (to be provide by DWQ) Drainage Area Number: Dry Extended Detention Basin 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. The dry extended detention basin system is defined as t outlet structure, pretreatment including forebays and the ve \ tat fil e i rovided. This system (check one): ❑ does ❑ does not incorporate a vegetated filter at the outlet. This system (check one): ❑ does ❑ does not incorporate pretreatment other than a forebay. Important maintenance procedures: - The drainage area will be managed to reduce the sediment load to the dry extended detention basin. - Immediately after the dry extended detention basin is established, the vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks). - No portion of the dry extended detention pond will be fertilized after the first initial fertilization that is required to establish the vegetation. - I will maintain the vegetation in and around the basin at a height of approximately six inches. - Once a year, a dam safety expert will inspect the embankment. After the dry extended detention basin is established, it will be inspected once a quarter 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. AMP element: Potential problem: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the dry Areas of bare soil and/or Regrade the soil if necessary to extended detention erosive gullies have formed. remove the gully, and then plant a basin ground cover and water until it is established. Provide lime and a one-time fertilizer application. )DECEIVED MAR 1 1 2013 Form SW401-Dry Detention O&M-Rev.3 Page 1 of 4 0ENR-FAYETTEMLE REGIONAL OFFICE BMP element: Potentialproblem: How I will remediate theproblem: The inlet device: pipe or swale The pipe is clogged (if applicable). Unclog the pipe. Dispose of the 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. The forebay Sediment has accumulated Search for the source of the and reduced the depth to 75% sediment and remedy the problem if of the original design depth possible. Remove the sediment and (see diagram below). dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred or Provide additional erosion riprap is displaced. 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 pesticides are used, wipe them on the plants rather than spraying. The main treatment area Sediment has accumulated Search for the source of the and reduced the depth to 75% sediment and remedy the problem if of the original design depth possible. Remove the sediment and (see diagram below). dispose of it in a location where it will not cause impacts to streams or the BMP. Revegetate disturbed areas immediately with sod (preferred) or seed protected with securely staked erosion mat. Water is standing more than Check outlet structure for clogging. 5 days after a storm event. If it is a design issue, consult an a22ropriate professional. Weeds and noxious plants are Remove the plants by hand or by growing in the main wiping them with pesticide (do not treatment area. spray). Form SW401-Dry Detention O&M-Rev.3 Page 2 of 4 BMP element: Potentialproblem: How I will remediate theproblem: The embankment Shrubs or trees have started Remove shrubs or trees to grow on the embankment. immediately. Grass cover is unhealthy or Restore the health of the grass cover eroding. — consult a professional if necessar . Signs of seepage on the Consult a professional. downstream face. Evidence of muskrat or Use traps to remove muskrats and beaver activity is present. consult a professional to remove beavers. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair. The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. The outlet device is damaged Repair or replace the outlet device. 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. The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. When the basin depth reads feet in the main pond, the sediment shall be removed. When the basin depth reads feet in the forebay, the sediment shall be removed. BASIN DIAGRAM ill in the blanks) Temporary Pool Elevation Sediment Removal E Te porar Pool em on P -------------- -- olume Sediment Removal Elevation _ Volur Bottum Elevatio 25%-------------------------------------------- ---- Sediment Bottom Elevation Storage FOREBAY MAIN POND Form SW401-Dry Detention O&M-Rev.3 Page 3 of 4 Permit Number: (to be provided by DWQ) 1 acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. 1 agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:SOF Communications Training Facility BMP drainage area number: Print name:Mr. David Heins Title:Ft Bragg Directorate of Public Works (DPW) / Chief -Environmental Division Address:2175 Reilly Road Stop A, Fort Bragg, NC 28310-5000 Date: z I A� /3 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. day of a Notary Public for the State of County of , do hereby certify that personally appeared before me this and acknowledge the due execution of the forgoing dry detention basin maintenance requirements. Witness my hand and official seal, SEAL My commission expires Form SW401-Dry Detention O&M-Rev.3 Page 4 of 4