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HomeMy WebLinkAboutSW7101206_CURRENT PERMIT_20120307STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW 2La1g& DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD NC®ENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P. E. Dee Freeman Governor Director Secretary March 7, 2012 Mr. Zachary Taylor, Owner PO Box 12006 New Bern, NC 28561 Subject: NOTICE OF DEFICIENCY Stormwater Management Permit No. SW7101206 Commerce Park 11 Craven County Dear Mr. Tayolor. This letter is to notify you are in violation of Title 15A North Carolina Administrative Code (NCAC) 2H .1000 for failing to comply with terms, conditions and limitations of Stormwater Management Permit No. SW7101206. Permit Number SW7101206 was issued to you on January 11, 2011 for the Stormwater Improvements for Commerce Park 11, located at 1315 Commerce Drive, New Bern, Craven County, North Carolina. On March 2, 2012, Mr. Scott Vinson of the Washington Regional Office performed an inspection to determine the status of compliance with Stormwater Permit SW7101206 as a result of a request to transfer the permit to Commerce Pond Owners Association, Inc.. As a result of the site inspection and DWQ file review, the following observations and deficiencies are noted: I. Permit Conditions #1. 1 & 2., DWQ observed that there is unpermitted off -site drainage from the neighboring property that is draining onto this site and into the wet detention pond. The off -site runoff is coming from the back half of two buildings labeled S. Market Square Assoc. Inc. on the plans and drain to the back drive isle of lots 6, 7 and 8, to the collection drop inlets leading to the pond. This is a violation of Permit Number SW7101206 Conditions 41.1.&2. which state, "l. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data." and "2. This stormwater system has been approved for. the management of stormwater runoff as described in Section 1.6 on page 3 of this permit." This additional drainage area and impervious area adds runoff volume to the detention pond that was not accounted for within the permitted design. This off -site drainage should be either redirected away from the pond or you may re-evaluated the pond design calculations to determine if the pond is large enough and properly sized to take this drainage. If the pond is determined to be large enough as designed, then a request for a permit modification should be submitted for review and approval by the Division. I. Permit Conditions 01. 5. DWQ observed that either the vegetated shelf around the pond perimeter was not properly planted with wetland plants, or many of the plants did not survive the first year. It is however still late winter and some plants may not be visible due to dormancy. Please inspect the pond shelf this March for signs of these wetland plants and plant the shelf as needed this spring in accordance with the approved planting plans. North Carolina Division of Water Quality Internet: www.ncwateroualitv.ore 943 Washington Square Mall Phone: 252-946-6481 Washington, NC 27889 FAX 252-946-9215 An Equal Opportunity/Affirmative Action Employer— 50% Recycled/l0% Post Consumer Paper Nne orthCarolina Naturally Page 2 of 21. Required Response This Office requires that you respond to this letter in writing to the address listed at the bottom of the letterhead within 30 calendar days of receipt of this Notice. Please provide a written "Plan of Action" which outlines the actions you will take to correct the above mentioned violation(s) and a time frame for completion of those actions. This office requires that the violations, as detailed above, be abated and properly resolved. Should you have any questions regarding these matters, please contact Scott Vinson at (252) 946-6481. Si erely, Al Hodge, eg pery or Surface Water Protection Section Washington Regional Office Enclosures: Inspection Report cc: John Thomas, PE — Thomas Engineering Washington Regional Office File Compliance Inspection Report Permit: SW7101206 Effective: 01/11/11 Expiration: 01/11/21 Owner: Zachary Taylor Project: Commerce Park II County: Craven 1315 Commerce Dr Region: Washington Trent Woods NC 28562 Contact Person: Zachary Taylor Title: i Phone: Directions to Project: From the intersection, of Trent Road (SR 1278) and Glenbumie Road (SR 1309), travel west on Trent Road 500 ft. Turn left on Commerce Drive, project is located on the left. Type of Project: State Stormwater - HD - Detention Pond Drain Areas: 1 -,(Wilson Creek) (03-04-10) (C;Sw,NSW On -Site Representative(s): I Related Permits: Inspection Dater 03/02/2012 Primary Inspector: Scott A Vinson Secondary Inspector(s): I Reason for Inspection: Routine i Entry Time: 02:30 PM Exit Time: 03:45 PM Permit Inspection Type: State Stormwater Facility Status:. ❑ Compliant ® Not Compliant i Question Areas: ® State Stormwater (See attachmentl,sulrnil Phone: 252-946-6481 Ext.208 Inspection Type: Transfer Renewal Page: 1 Permit: SW7101206 Owner -Project: Zachary Taylor Inspection Date: 03/02/2012 Inspection Type: Transfer Renewal Reason for Visit: Routine Inspection Summary: Either redirect the unpermitted off -site drainage away from the wet detention pond or re-evaluate the pond calcualtions to determine if the pond is large enough and is properly sized to take this driange into account. If the pond is large enough as designed then a request for a Minor Modificaiton to the permit should be submitted for review. Inspect the pond shelf this March for signs of wetland plants and re -plant the shelf as needed early this Spring in accordance with the approved planting plan. Please keep inspection and maintenance records on file for future reference and submittal to the Division of Water Quality. Page: 2 SW7101206 Owner • Protect: Zachary Taylor Inspection Date! 03/02/2012 Inspection Type: Transfer Renewal File Review Is the permit active? Signed copy of the Engineers certification Is in the file? Signed copy of thel Operation & Maintenance Agreement is in the file? Copy of the recorded deed restrictions is in the file? Comment: Reason for Visit: Routine Built Upon Area I Is the site BUA constructed as per the permit and approval plans? Is the drainage are I as per the permit and approved plans? Is the BUA (as permitted) graded such that the runoff drains to the system? Comment: There is off -site drianage from the neighboring property located West of this project that is making it's way into the treatment pond. This off -site runoff is coming from the back half of two buildings labeled S. Market Square Assoc. Inc. on the plans and drain to the back drive isle of lots 6, 7 & 8, to the collection drop inlets leading to the permitted wet detention basin. This off -site drainage has not be taken into account within the pond design calculations. Please either revaluate the pond sizing calcultaions to determine if this off -site area can remain without changing the size of the pond or redirect Phis off -site drainage away from the wet detention basin. SW Measures Are the SW measures constructed as per the approved plans? Are the inlets located per the approved plans? Are the outlet structures located per the approved plans? Comment: Either the vegetated shelf around the pond was not properly planted with wetland plants or many of plants did not survive the first year. It is however still winter and some plants may not be visible due to them being dormant. Please inspect the pond shelf this March for signs of these wetland plants and plant the shelf as needed early this spring in accordance with the approved permitted planting plans. Operation and Maintenance Yes No NA NE ®0❑❑ ® ❑ ❑ ❑ ®❑❑❑ ® ❑ ❑ ❑ Yes No NA NE ■ ■ ■ ❑ M ❑ ❑ ®❑❑❑ Yes No NA NE ®❑ D ❑ 0000 ®❑❑❑ I Yes No NA NE Are the SW measures being maintained and operated as per the permit requirements? ®❑ ❑ ❑ Are the SW BMP inspel tion and maintenance records complete and available for review or provided to DWQ ❑ ❑ ❑ upon request? Comment: See Vegetated Wetland Shelf notes above. Please keep proper lIinspection & maintenance records on file to be submitted to the Division of Water Quality upon request. I Page: 3 �s Permit: SW7101206 Owner -Project: Zachary Taylor inspection Date: 03102/2012 Inspection Type: Transfer Renewal Reason for Visit: Routine Other Permit Conditions Yes No NA NE Is the site compliant with other conditions of the permit? Comment: Other WQ Issues Is the site compliant with other water quality Issues as noted during the inspection? Comment: m 0 D D Yes No NA NE Page: 4 North Carolina Beverly Eaves Perdue Governor Mr. Zachary Taylor, Owner PO Box 12006 New Bern, NC 28561 Dear Mr. Tayolor. �r NCDENR Department of Environment and Division of Water Quality Charles Wakild, P. E. Director March 7, 2012 Natural Resources Subject: NOTICE OF DEFICIENCY Dee Freeman Stormwater Management Permit No. SW7101206 Commerce Park 11 Craven County This letter is to notify, you are in violation of Title 15A North Carolina Administrative Code (NCAC) 2H .1000 for failing to comply with terms; conditions and limitations of Stormwater Management Permit No. SW7101206. Permit Number SW7101206 was issued to you on January 11, 2011 for the Stormwater Improvements for Commerce Park 11, located at 1315 Commerce Drive, New Bern, Craven County, North Carolina. On March 2, 2012, Mr. Scott Vihson of the Washington Regional Office performed an inspection to determine the status of compliance with Stormwater Permit SW7101206 as a result of a request to transfer the permit to Commerce Pond Owners Association, Inc.. As a result of the site inspection and DWQ file review, the following observations and deficiencies are noted:; I. Permit Conditions#I. 1 & 2.1 DWQ observed that there is unpermitted off -site drainage from the neighboring property that is draining onto this site and into the wet detention pond. The off -site runoff is coming from the back half of two buildings labeled S. Market Square Assoc. Inc. on the plans and drain to the back drive isle of lots 6, 7 and 8, to the collection drop inlets leading to the pond. This is a violation of Permit Number SW7101206 Conditions #I.1.&2. which state, "I. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data." and "2. This Stormwater system has been approved for.the management of st6rmwater runoff as described in Section 1.6 on page 3 of this permit." This additional drainage area and impervious area adds runoff volume to the detention pond that was not accounted for within the permitted design. This off -site drainage should be either redirected away from the pond or you may re-evaluated the Pond design calculations to determine if the pond is large enough and properly sized to take this drainage. If the pond is determined to be large enough as designed, then a request for a permit modification should be submitted for review and approval by the Division. 1. Permit Conditions #II. 5. DWQ observed that either the vegetated shelf around the pond perimeter was not properly planted with wetland plants, or many of the plants did not survive the first year. It is however still late winter and some plants may not be visible due to dormancy. Please inspect the pond shelf this March for signs of these wetland plants and plant the shelf as needed this spring in accordance with the approved planting plans. North Carolina Division of Water Quality Internal: www.ncwalemuality org 943 Washington Square Mall I Phone: 252-946-6481 Washington, NC 27889 FAX 252-946-9215 An Equal Opportunity/Affirmative Action Employer— 50%Recycled110%Post Consumer Paper Nne orthCarohna Naturally Page 2 of 2 Required Response This Office requires that you respond to this letter in writing to the address listed at the bottom of the letterhead within 30 calendar days of receipt of this Notice. Please provide a written "Plan of Action" which outlines the actions you will take to correct the above mentioned violation(s) and a time frame for completion of those actions. This office requires that the violations, as detailed above, be abated and properly resolved. Should you have any questions regarding these matters, please contact Scott Vinson at (252) 946-6481. Si cerely, AI Hbgge, eg , apervisor Surface Water Protection Section Washington Regional Office Enclosures: Inspection Report cc: John Thomas, PE —Thomas Engineering Washington Regional Office File Permit: SW7101206 County: Craven Reglon: Washington Compliance inspection Report Effective: 01/11/11 Expiration: 01/11/21 Owner: Zachary Taylor Project: Commerce Park II 1315 Commerce Dr Trent Woods NC 28562 Contact Person: Zachary Taylor Title: Phone: Directions to Project: From the intersection of Trent Road (SR 1278) and Glenbumie Road (SR 1309), travel west on Trent Road 500 ft. Turn left on Commerce Drive, project is located on the left. Type of Project: State Stormwater - HD - Detention Pond Drain Areas: 1 - (Wilson Creek) (03-04-10 ) (C;Sw,NSW On -Site Representative(s); Related Permits: Inspection Date: 03I0212012 Entry Time: 02:30 PM Primary Inspector: Scott A Vinson Secondary Inspector(s): Reason for Inspection: Routine Permit Inspection Type: State Stormwater Facility Status: ❑ Compliant ® Not Compliant Question Areas: ® State Stormwater (See attach ment�SumMary) Exit Time: 03:45 PM Phone: 252-946-6481 Ext.208 Inspection Type: Transfer Renewal Page: 1 Permit SW7101206 Owner • Project: Zachary Taylor Inspection Date: 03/02/2012 Inspection Type: Transfer Renewal Reason for Visit: Routine Inspection Summary: Either redirect the unpermitted off -site drainage away from the wet detention pond or re-evaluate the pond calcualtions to determine if the pond is large enough and is properly sized to take this driange into account. If the pond is large enough as designed then a request for a Minor Modificaiton to the permit should be submitted for review. Inspect the pond shelf this March for signs of wetland plants and re -plant the shelf as needed early this Spring in accordance with the approved planting plan. Please keep inspection and maintenance records on file for future reference and submittal to the Division of Water Quality. M Page: 2 i PermR: SW7101206 Inspection Date: 03/02/2012 File Review I Owner • Project: Zachary Taylor Inspection Type: Transfer Renewal Is the permit active? - Signed copy of the Engineers certification Is in the file? Signed copy of the,Operation & Maintenance Agreement is in the file? Copy of the recorded deed restrictions is in the file? Comment: Built Upon Area Is the site BUA constructed as per the permit and approval plans? Is the drainage area as perthe permit and approved plans? Is the BUA (as permitted) graded such that the runoff drains to the system? Reason for visit: Routine Comment: There is off -site drianage from the neighboring property located West of this project that is making it's way into the treatment pond. This off -site runoff is coming from the back half of two buildings labeled S. Market Square Assoc. Inc. on the plans and drain to the back drive isle of lots 6, 7 & 8, to the collection drop inlets leading to the permitted wet detention basin. This off -site drainage has not be taken into account within the pond design calculations. Please either revaluate the pond sizing calcultaions to determine if this off -site area can remain without changing the size of the pond or redirect this off -site drainage away from the wet detention basin. SW Measures Are the SW measures constructed as per the approved plans? Are the inlets located per the approved plans? Are the outlet structures located per the approved plans? Comment: Either the vegetated shelf around the pond was not properly planted with wetland plants or many of plants did not survive the first year. It is however still winter and some plants may not be visible due to them being dormant. Please inspect the pond shelf this March for signs of these wetland plants and plant the shelf as needed early this spring in accordance with the approved permitted planting plans. Operation and Maintenance Are the SW measures being maintained and operated as per the permit requirements? Yes No NA NE 0000 M ❑ ❑ ❑ ® ❑ ❑ ❑ Yes No NA NE ®❑❑❑ ❑ ®❑ ❑ M ❑ ❑ ❑ Yes No NA NE 0000 0000 ® ❑ ❑ ❑ Yes No NA NE !❑❑❑ Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ ❑ ❑ ❑ upon request? Comment: See Vegetated Wetland Shelf notes above. Please keep proper inspection & maintenance records on file to be submitted to the Division of Water Quality upon request. Page: 3 Permit: SW7101206 Owner -Project: Zachary Taylor Inspection Date: 0310212012 Inspection Type: Transfer Renewal Reason for Visit: Routine Other Permit Conditions Yes No NA NE Is the site compliant with other conditions of the permit? Comment: Other WO Issues 0000 Yes No NA NE Is the site compliant with other water quality issues as noted during the inspection? a ❑ ❑ Comment: Page: 4 OMVIAS ENGINEERING, PA Y CIVIL ENGINEERING*LAND DEVELOPMENTePROJECT MANAGEMENT EMAIL March 22, 2012 To: NCDENR Division of Water Quality RECEIVED 943 Washington Square mall Washington, NC 27889 MAR 2 2 2012 Attn: Scott Vinson Express Environmental Engineer Re: Stormwater Improvements for Commerce Park It Notice of Deficiency Response New Bern, Craven County, NC 2010'018 Dear Scott, DWQ-WARD Per our phone conversation a few days ago below are some calculations that address the status of the pond for the above referenced project. This is in response to your March 7, 2012 Notice of Deficiency Letter. Item 1 — Off -.site Drainage Concerns Based on field investigation the additional offsite drainage area now draining to this project and originally unpermitted is 21,800 SF. This area includes 15,350 SF of impervious area and 6,450 SF of green area. Permanent Pool Size Sunimary Adding this to the onsite project drainage areas and utilizing the original 90% Nutrient Removal table calculates a required permanent pool area of 9,901 SF. The current existing pond has been built with a permanent pool area of 8,850 SF. Furthermore by interpolating between the 90% table and the 85% table we can safely assume that even with the additional area we are operating at approximately 88% Nutrient Removal capacity. Additionally the outlet end of the pond outlet structure pipe discharges into a ditch which has some treatment capacity. Based on these findings we find that the existing conditions treat the additional stormwater adequately. Temporary Storage Volume The current pond has a temporary volume capture capacity of 23,225 CFT. Adding the new area and its associated runoff will result in a required temporary storage volume of 16,744 CFT, up from the original required temporary storage volume of 14,744 CFT. 401 Howell Road-P. 0. Box 1309.New Bern, NC 28563 Phone: (251)637-2727.1--ax: (251)636-1448.4`ebsoe. 7homnsEngineeringPA.com THOMAS ENGINEERING, PA CIVIL ENGINEERINGeLAND DEVELOPMENT.PRO.IECT MANAGEMENT Therefore, even by adding off -site unpermitted area the existing pond design continues to offer approximately 38% more storage capacity than is required. Summary C-� ,a--`o"=9�9 y jBased on these factors it is our opinion that the off -site drainage areas coming onto the �, 1 :- �`pi'ojecNiY p bides for better stormwater treatment for these areas without putting the onsite pond design unnecessarily outside of tolerance levels. Additionally the permittee S('has no other.method to control this additional off -site discharge. Item 2 — VeeetatediShelf Planting 0'- X *4-Lifir"TvU Tv ' Per our phone conversation, the vegetated shelf was planted. We have some pictures of the sprigs on file, however they are likely dormant at this time or beginning to come out. Our recommendation is simply to give this time. Please review and let me know if you need anything further to address this. if you have any questions or concerns, please advise. Thank �you, ��,/� leaR 44y Bobby Billingsley, PE BobbyBillingsley@ThomasEngineeringPA.com Enclosures 401 Howell Road.P.O. Box 1309.Aew Bern, NC 28563 Phone: (152)637-1717.Fax: (152)636-2448.11'ebsile: ThomosEngineeringPA.com