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HomeMy WebLinkAboutSW7120307_CURRENT PERMIT_20120328STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SWa�a��' 7 DOC TYPE � CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE DOC DATE YYYYMMDD NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, PE Dee Freeman Governor Director Secretary March 28, 2012 Ms. Karen Colonias, Secretary/Treasurer Simpson Strong -Tie Company, Inc. 5956 W. Las Positas Blvd. Pleasanton, CA 94588 Subject: State Stormwater Permit No. SW7120307 Simpson Strong -Tie High Density Commercial Bio-Retention Project Chowan County Dear Ms. Colonias: The Washington Regional Office received a complete Stormwater Management Permit Application for Simpson Strong -Tie addition project on March 16, 2012. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Session Law 2008-211 and Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7120307 dated March 28, 2012, for the construction of the subject project. This permit shall be effective from the date of issuance until March 28, 2020, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. If you have any questions, or need additional information concerning this matter, please contact Scott Vinson, or me at (252) 946-6481. ncerel , . f AI Ho Regional Supervisor Surface Water Protection Section AHI sv: S:1WQSISTORMWATERIPERMI-RSW7120307 cc: Derek Dail, PE — Quible & Associates, PC (ewt mi 1) Chowan County Planning 1 Building Inspections ,Nashington Regional Office North Carolina Division of Water Quality Internet: www.ncwaternua€ity.ora One Washington Square Mall Phone: 252-946-6481 Washington, NC 27889 FAX 252-946-9215 NorthCarolina An Equal Opportunity/Affirmative Action Employer — 50% Recycletl110% Post Consumer Paper ;Vaturallbl State Stormwater Management Systems Permit No. SW7120307 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Simpson Strong -Tie Company, Inc. Simpson Strong -Tie Located int. of Soundside Rd. & Atlantic Forest Dr., Edenton, Chowan County FOR THE construction, operation and maintenance of four (4) bioretention basins in compliance with the provisions of Session Law 2008-211 and 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until March 28, 2020, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.7 on page 3 of this permit. The four bioretention basins have been designed to handle the runoff from 20,089 square feet of existing parking impervious area to off -set or mitigate for the new 16,000 square foot building expansion project. 3. The tract will be limited to the amount of built -upon area as indicated in this permit, and per the application documents and as shown on the approved plans. The built -upon area for the proposed development is limited to the 16,000 square feet of building as shown on the approved plans. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 5. The runoff from all built -upon area within the permitted parking drainage area of this project must be directed into the permitted stormwater control systems. 6. The built -upon areas associated with this project shall be located at least 50 feet landward of all perennial and intermittent surface waters. Page 2 of 7 State Stormwater Management Systems Permit No. SW7120307 7. The following design criteria have been provided in the four bioretention basins and must be maintained at design condition: DA#1 DA#2 DA#3 DA#4 a. Drainage Area, ft2: 8,945 10,724 6,476 3,401 b. Total Impervious Surfaces, ft2: 5,990 7,820 4,698 1,581 C. Design Storm, inches: 1.50" d. Max. Ponded Depth, feet: 0.60 e. Seasonal High Water Table, fmsl: ' 10.90 f. Planting Media Depth, feet: 1.50' for grass g. Basin Dimensions, feet: (92'x17') (121'x17') (66'x19') (35'x17') h. Bottom Elevation, fmsl: 13.40 i. Bottom Surface Area, ft2: 935 1,265 793 319 j. Permitted Storage Volume, ft3. 855 989 600 '326 k. Bypass 1 Storage Elevation, fmsl: 14.00 1. Drawdown Time, hours: 4.80 M. Underdrain Diameter, inches: 4" — 6" perf. pipe n. Total number of plants provided: grass sod o. Receiving Stream/River Basin: Albemarle Sound 1 Pasquotank q. Stream Index Number: 30 r. Classification of Water Body: "SB" II. SCHEDULE OF COMPLIANCE 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all time provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. - . Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and re -vegetation of slopes and the filter strip. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans. f. Debris removal and unclogging of all drainage structures, level spreader, filter media, planting media, underdrains, catch basins and piping. g. Access to the basin and outlet structure must be available at all times. 4. Records of maintenance activities must be kept for each permitted BMP. The reports will indicate the date, activity, name of person performing the work and what actions were taken. 5. The facilities shall be constructed as shown on the approved plans. This permit shall become void unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 6. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior_to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted Page 3 of 7 State Stormwater Management Systems Permit No. SW7120307 facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. 7. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 8. Access to the stormwater facilities shall be maintained via appropriate recorded easements at all times. 9. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc.. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, lease or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 11. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 12. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 13. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. III. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a completed Name/Ownership Change form signed by both parties, to the Division of Water Quality, accompanied by the supporting documentation as listed on page 2 of the form. The approval of this request will be considered on its merits and may or may not be approved. 2. The permittee is responsible for compliance with all permit conditions until such time as the Division approves a request to transfer the permit. 3. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. Page 4 of 7 State Stormwater Management Systems Permit No. SW7120307 4. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 5. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 6. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 7. The permit issued shall continue in force and effect until revoked or terminated. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and re -issuance or termination does not stay any permit condition. 8. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 9. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 10. The issuance of this permit does not prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules and regulations contained in Session Law 2008- 211, Title 15A NCAC 21-1.1000, and NCGS 143-215.1 et.al. 11. The permittee shall notify the Division in writing of any name, ownership or mailing address changes at least 30 days prior to making such changes. 12. This permit shall be effective from the date of issuance until March 28, 2020. Application for permit renewal shall be submitted 180 days prior to the expiration date of this permit and must be accompanied by the processing fee Permit issued this the 28th day of March, 2012. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION for Division of Water Quality By Authority of the Environmental Management Commission Permit No. SW7120307 Page 5 of 7 State Stormwater Management Systems Permit No. SW7120307 Simpson Strong -Tie, Edenton, NC Stormwater Permit No. SW7120307 Chowan County Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, (Project Name) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specification: Signature Registration Number Date SEAT_ Page 6 of 7 State Stormwater Management Systems Permit No. SW7120307 Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. .5. The outlet/bypass structure elevations are per the approved plan. 6. The outlet structure is located per the approved plans. 7. Trash rack is provided on the outlet/bypass structure. 8. All slopes are grassed with permanent vegetation, per the vegetation plan. 9. Vegetated slopes are no steeper than 3:1. _10. The inlets are located per the approved plans and do not cause short- circuiting of the system. .11. The permitted amounts of surface area and/or volume have been provided. .12. Required drawdown devices are correctly sized per the approved plans. _13. All required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 15. The required system dimensions are provided per the approved plans. cc: Chowan County Planning / Building Inspections Page 7 of 7 Quible Quible & Associates, P.C. ENGINEERING • ENVIRONMENTAL SCIENCES • PLANNING • SURVEYING SINCE 1959 June 19, 2013 Scott Vinson NCDENR — DWQ 943 Washington Square Mall Washington, NC 27889 Re: Stormwater Certification — SW7120307 Simpson Strong -Tie — Chowan County Mr. Vinson, P.O. Drawer 870 Kitty Hawk, NC 27949 Phane'252-26i-3" Fax:252-261-126C Web: qulble.com FZECEIVED JUN 2 4 2013 DVVCt-WAi20 Please find enclosed the Stormwater Certification for the referenced project. If you have any questions regarding the Certification, please do not hesitate to contact me by email at ddail@quible.com or by phone at 252-261-3300. Sincerely, Quible & Associates, P.C. Derek A. Dail, P.E. CC: Bill Black it State Stormwater Management Systems Permit No. SW7120307 Simpson Strong -Tie, Edenton, NC Stormwater Permit No. SW7120307 Chowan County Designer's Certification brk_ A - lb A as a duly registered ?RaFC-_4w?4 14 EM&,►v[ffe2_ in the State'of North Carolina, having been authorized to observe (periodically/weekly/ full time) the construction of the project, S1Mp SOH &AOK 6 — ! & F IF taG H TUr-c HC (Project Name) for Sin&Soµ ST1kvk&- i 1E CO, , qn_c. (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specification: Signature Registration Number D 3 3 ? S °1 Date C t tq 12 a 13 SEAL 4L SEAL r 033759 GIN K A Page 6 of 7 State Stormwater Management Systems Permit No. SW7120307 ` Certification Requirements: ✓ 1. The drainage area to the system contains approximately the permitted acreage. V. 2'. The drainage area'to the system contains no more than the permitted amount of built -upon area. ✓ 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. . • . ; :�.�v �� ., ,,,w �4. All roof drains are located such that the runoff is directed into the system. 5. The outlet/bypass structure elevations are per,the`app'roved plan:` 11 ✓ 6. The outlet structure is located per,the approved plans. ✓ 7. Trash rack is provided on the outlet/bypass structure. 1% 8. All slopes are grassed with permanent vegetation, per the vegetation plan. ✓ 9. Vegetated slopes are no steeper than 3:1. 1J)A 1 Q. The inlets are located per the approved plans and do not cause short- circuiting of the system. Sheet $rav +o 31orety^+•00% 3tt4s ✓ 11. The permitted amounts of surface area and/or volume have been provided. 1 A 12. i�egc ird drawdown devices are correctly sized per the approved plans. ✓ 13. All rewired design depths are provided. WA .14. All required parts of the system are,proVided,` such as a vegetated shelf, and a forebay. &or,+e,4+raue 15. The required system dimensions are provided per the approved plans. N• cc:� Chow an County Planning 1 Building Inspections Page 7 of 7 wet �_. c ROY CC1C PIP MIC: HAk L ti, REGAN sr•,-r'rlh"I"S. S. DANIEL SMITH H A�Irtjrl� fii.,,r:Jnr Simpson Strong -Tie Company, Inc. Attention: Karen Colonias, CEO 5956 W. Las Positas Blvd. Pleasanton, CA 94588 D! Ct4ROUNA Envirartnre11rul Qualify August 21, 2019 Subject: Stormwater Permit No, SW7120307 Renewal Simpson Strong -Tie High Density Stormwater Project Edenton, NC, Chowan County Dear Ms. Colonias: A Division of Energy, Mineral, and Land Resources file review has determined that Stormwater Permit SW7120307 for a stormwater treatment system consisting of four bioretention basins serving Simpson Strong -Tie located at 809 Soundside Road, Edenton, NC expires on March 28, 2020. This is a reminder that permit renewal applications are due 180 days prior to expiration. We do not have a record of receiving a renewal application. Please submit a completed permit renewal application along with a $505.00 fee for permit renewal. Permit application forms for renewal can be found on our website at: , Y. i, ~t= .. �-),_•ti:i Ei. .11' i,;f �; Ali tir ii il. _ f iii`''i,�1; }ililli; :11 :u'll,'. North Carolina General Statutes and the Coastal Stormwater rules require that this property be covered under a stormwater permit. Failure to maintain a permit subjects the owner to assessment of civil penalties. If you have questions, please feel free to contact me at (252) 948-3923. 1 will be glad to discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the application forms. You can request a copy by e-mailing me at ai._:a'llt.t_ Sincerely, t;�z % . Thorpe Environmental Engineer WRAhps'ill(:;Ir'silin<f�rl';>YF �rt'lll nt IGWii,)r, 7PIli2j1QnaV1v DM.,;inn OAE lutgy'iYiincr;li.slldI Ulkl ��C':r;f 11 ss;.y _ W:11,11 11Inn I;rrlsr T,) 11lj r , +? I;S 4vrr.l,�l'rllhrl'�t�tltlrr A4:xlf I W,IrJlil+allnn, Norl II t C DWQ USE ONLY ate Receives Fee Paid Ce4 Permit Number MAR 1 3 5W71 Zc, 0 Applicable Rules: ❑ Coastal SW —1995 ❑ Coastal SW — 2008 ❑ Ph 11 - Post Construction (scleel (III ROLE on -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management flan Wher WO M mt Plan: State of North Carolina Department of Environment and Natural Resources Division of Water Quality�� STORMWATER MANAGEMENT PERMIT APPLICATION FORM `1'his forma ina y be phol ocopied for use as an original I. GENERAL INFORMATION I. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Simpson Stong-Tie 2. Location of Project (street address): 809 Soundside Road City:Edenton County:Chowan Zip:27932 3. Directions to project (from nearest major intersection): The site is located on the northeast side of the intersection of Soundside Road and Atlantic forest Drive 4. Latitude:36° 01' 04.24" N Longitude:76° 33' 49.04" W of the main entrance to the project. Il. PERMIT INFORMATION: 1. a. Specify whether project is (check one): ®New ❑Modification b.If this application is being submitted as the result of a modification to an existing permit, list the existing permit number , its issue date (if known) , and the status of construction: ❑Not Started ❑Partially Completed* ❑ Completed* *provide a dcll;g cr's ccrlificafion 2. Specify the type of project (check one): ❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other 3. If this application is being submitted as the result of a previously returned application or a letter from DWQ requesting a state stormwater management permit application, list the stormwater project number, if assigned, and the previous name of the project, if different than currently proposed, 4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748): ❑CAMA Major ❑Sedimentation/Erosion Control: 0.8 ac of Disturbed Area ❑NPDES Industrial Stormwater ❑404/401 Permit: Proposed Impacts b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number, issue date and the type of each permit: Form SWU-101 Version 07Jun2010 Page I of 6 III. CONTACT INFORMATION 1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee, designated government official, individual, etc. who owns theproject): Applicant/Orgaiiizatioti:Simpson Strong -tie Company Inc. _ Signing Official & Title:Karen Colonias - Secretary/Treasurer - b.Contact information for person listed in item 1a above: Street Address:5956 W. Las Positas Blvd. City:Pleasanton State:CA Zip:94588 Mailing Address (if applicable): City:5956 W. Las Positas Blvd State:CA Zip:24588 Phone: (925 ) 560-9000 Fax: (925 ) 847-1597 Ema il: kcolonias « strongtie.com c. Please check the appropriate box. The applicant listed above is: ® The property owner (Skip to Contact Information, item 3a) ❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below) ❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and 2b below) ❑ Developer* (Complete Contact Information, item 2a and 2b below.) 2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the person who owns the property that the project is located on): Property Owner/Organization: Signing Official & Title:— b. Contact information for person listed in item 2a above: Street Address: City: State: Zip: Mailing Address (if applicable): City:_ Phone: Email: State: Zi Pax: 3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project: Other Contact Person/Organization:Simpson Strong -Tie; Edenton Operations Signing Official & Title:William H. Black fr. - Edenton Operations Manager b.Contact information for person listed in item 3a above: Mailing Address:809 Soundside Road City:Edenton State:NC Zip:27932 Phone: (252 ) „482, 1153 Fax: (252 ) 0399 Email: 4. Local jurisdiction for building permits: Town of Edenton Point of Contact:Katy Van Doninck Phone #: (252 } 482-7377 Dorm SWU-101 Version 07Jun2010 Page 2 46 IV. PROJECT INFORMATION 7. In the space provided below, briefly summarize how the stormwater nmoff will be treated. This high density storrwater management plan will utlize bioretention cells located in existing on site parking lot to treat, store, and dispose of stormwater runoff drainingfi•onn currently untreated areas to to mitigate for a 16,000 building expansion. 2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved: ❑ Approval of a Site Specific Development Plan or PUDApproval Date: ❑ Valid Building Permit Issued Date: ❑ Other: Date: If claiming vested rights, identify the regulation(s) the project has been designed in accordance with: ❑ Coastal SW -1995 ❑ Ph 11 - Post Construction 3. Storinnwater runoff from this project drains to the a ir2, f9,.4otr, wk River basin. 4. Total Property Area: 6.2 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total Surface Water Area: 0 acres 7. Total Property Area (4) -Total Coastal Wetlands Area (5) -Total Surface Water Area (6) = Total Project Area': 6.2 -acres Total project area shall be calculated to exclude the follozuirtg: the normal pool of utrpoutzdecl structures, the area betzoeen the banks of streams and rivers, the area be/070the Nortnal Fli�h Water (NHW) lime or Meair High Water (MFIW) line, trrtd coastal 7oetlatuls landward front the NHW (or MHW) line. The resultant project area is itsed to catcttlate oz,erall percent built upon area (BUA). Non -coastal Wetlands landward of the NFIW (or MHW) litre ntay be included in tltc total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 45 9. How many drainage areas does the project have?4 (For high density, count 1 for each proposed engineered stormwater BMP. For low dettsity and other projects, use 1 jor the whole property area) 10. Complete the following information for each drainage area identified in Project Information item 9. If there are more than four drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. Basin Information Drainage Area 1 Drainage Area 2 T Drainage Area 3 Draina e Area 4 Receiving Stream Name Albemarle Sd. Albemarle Sol. Albemarle Sol. Albemarle Sol. Stream Class * S(j Blis45W Lj evsw 5 B-,NSW Stream Index Number * .2{ 30 ;, 2-6 3-D 26- .3a -215 Total Drainage Area (sf) 8945 10724 6476 3401 On -site Drainage Area (sf) 8945 10724 6476 3401 Off -site Drainage Area (sf) 0 0 0 0 Proposed Impervious Area (sf) 5990 7820 4698 1581 `% Impervious Area** (total) 67 73 73 46 Impervious- Surface Area Drainage Area 1. Drainage Area 2 Drainage Area 3 Drainage Area 4 On -site Buildings/Lots (sf) 0 0 0 0 On -site Streets (sf) 0 0 0 0 On -site Parking (sf) 0 0 0 0 On -site Sidewalks (sf) 0 0 0 0 Other on -site (sf) 0 0 0 0 Future (sf) 0 0 0 0 Off -site (sf) 0 0 0 0 Existing BUA*** (sf) 5990 7820 4698 1581 Total (sf): 5990 7820 4698 1581 * Strerun Class and lades Number call be determined at: ions ** lty�erzttous area is di fined as the built upon area including, but not limited to, buildings, roads, parking areas, sitee Walks, gravel areas, etc. ;�4r0 b4- ao/P5 e't'off *** Report only that atnoitrtt of existhi,� BLIA that will remain after dczrclopntent. Do not report any existing BLIA that is A, to be removed and 701101 will be replaced by nf'W BUA. k` w r-4,11 Forin SWU-101 Version 07.1un2010 Pagc 3 46 r, I1. Hovv was the off,site impervious area listed above determined? Provide documentation. Auto CAD area routine Pro.iects in Union County: Contact DVV0 Central Off ice staff to check if the project is located within a Threatened & Endangered Species watershed that rrrrry be subject to nrore .Stringent storm rmter reguiremetrts as per NCAC 02B .0000. V. SUPPLEMENT AND O&M FORMS The applicable state storm water management permit supplement and operation and maintenance (O&M) forms must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded from Etta://uortal.nedenr.or�/web/wR/tivs/sulbmp-manual. VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. A detailed application instruction sheet and BMP checklists are available from littp://12ortal.ncdeiir.org/web/WQ/�N'S/SLI/`states%N,/fornis does. The complete application package should be submitted to the appropriate DWQ Office. (The appropriate office may be found by locating project on the interactive online map at http://portal.ncdenr.org/sveb/wq/ws/su/maps.) Please indicate that the following required information have been provided by initialing in the space provided for each item. Ali original documents MUST be signed and initiated in blue ink. Download the latest versions for each submitted application package from http://portal.ncdenr.org/web/wq/ems/su/statesw/forms does. Initials 1. Orr�inal and one colry of the Stormwater Management Permit Application Form. DAp 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants rt(n I,orm. (if required as per Part V11 below) 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M agreement(s) for each BMP. 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to http://www.eiivhe112.org/pagesZonestopexpress.html for information on the Express program and the associated fees. Contact the appropriate regional office Express Permit Coordinator for additional information and to schedule the required application meeting.) 5. A detailed narrative (one to two pages) describing the Stormwater treatment/management for the project. This is required in addition to the brief summary provided in the Project Information, item 1. 6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the receiving stream drains to class SA waters within 1/i mile of the site boundary, include the'7z mile radius on the map. 7. Sealed,'signed and dated calculations. 8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: a. Development/Project name. b. Engineer and firm. c. Location map with named streets and NCSR numbers. d. Legend. e. North arrow. f. Scale. g. Revision number and dates. h. Identify all surface waters on the plans by delineating the normal pool elevation of impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal waters, and any coastal wetlands landward of the MHW or NHW lines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters. i. Dimensioned property/project boundary with bearings & distances. j. Site Layout with all BUA identified and dimensioned. k. Existing contours, proposed contours, spot elevations, finished floor elevations. 1. Details of roads, drainage features, collection systems, and stormwatcr control measures. m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. n. Existing drainage (including off -site), drainage casements, pipe sizes, runoff calculations. o. Drainage areas delineated (included in the main set of plans, not as a separate document). p. Vegetated buffers (where required). DA9 DAB b A,� k ARa OI, fl Form SWU-101 Versiiui 07Jun2010 Page 4 oJ'6 9. Copy of any applicable soils report with the associated SHWT elevations (Please identify elevations in addition to depths) as well as a map of the boring locations with the existing elevations and boring logs. Include an 8.5"xl1" copy of the NRCS County Soils map with the project area clearly delineated. For projects with infiltration BMPs, the report should also include the soil type, expected -infiltration rate, and the method of determining the infiltration rate. (Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verify the SHWT prior - to sir)nrittal, (910) 796-7378.) 10. A copy of the most current property deed. Deed book: 439 Page No: 369 11. For corporations and limited liability corporations (LLC): Provide documentation from the NC Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, item la, 2a, and/or 3a per NCAC 2H.1003(e). The corporation or LLC Hurst be listed as an active corporation in good standing with the NC Secretary of State, otherwise the application will be returned. http://www.secretary.state.nc.us/Corporations CSearch.as12x VI1. DEED RESTRICTIONS AND PROTECTIVE COVENANTS For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed 13UA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and protective covenants forms can be downloaded from http://portal.ncdenr.org;/web/wq/ws/su/st,itesw/forms does. Download the latest versions for each submittal. In the instances where the applicant is different than the property owner, it is the responsibility of the property owner to sign the deed restrictions aiA protective covenants form while the applicant is responsible for ensuring; that the deed restrictions are recorded. By the notarized signature(s) below, the permit bolder(s) certify that the recorded property restrictions and protective covenants for this project, if required, shall include all the items required in the permit and listed on the forms available on the website, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the NC DWQ, and that they will be recorded prior to the sale of any lot. Vill. CONSULTANT INFORMATION AND AUTHORIZATION Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as addressing requests for additional information). Consulting Engineer:Derek A. Dail P.E. Consulting Firm: Quible & Associates, P.C. Mailing Address:P.O. Drawer 870 City:Kitty Hawk State:N Zip:27949 Phone: (252 ) 261-3300 Fax: (252 ) 261-1260 I;mail:ddail@quible.com IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, itein 2 has beery filled out, coniplele this sect ion) 1, (print or type name of person listed in Contact hforrnatiori, item 2a) _ certify that own the property identified in this permit application, and thus give permission to (print or type irarne c f Iverson listed in Contact Information, iteni 10 with (print or type twine of oiWanization listed in Contact Information, item 1a) to develop the project as currently proposed. A copy of the lease agreement or pending; property sales contract has been provided with the submittal, which indicates the party responsible for the operation and maintenance of the stormwater system. Form SWU-101 Version 07Juo2010 Page 5 of 6 As the legal property owner I acknowledge, understand, and agree by my signature below, that ifmy designated agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their lease agreement, or pending sale, responsibility for compliance with the DWQ Storm water perm it reverts back to me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a completed Name/ Ownership Change I orm within 30 days; otherwise I will he operating a stormwater treatment facility without a valid permit. [understand that the operation of stormwater treatment facility without a valid permit is a violation ofNC General Statue 143-215.1 and may result in appropriate enforcement action including the assessment of civil penalties of up to $25.000 per day, pursuant to NCGS 143-215.6. Signature: a Notary Public for the State of' do hereby certify that Date: County of' personally appeared before me this —day of , and acknowledge the due execution of'the application for a stormwater perm it. Witness my hand and official seal, SEA L My commission expires X. APPLICANT'S CERTIFICATION I, {print or type name ofperson listed in Conrad Information, item 1a) Karen Colonias. Secretarv%trerrsurer certify that the information included on this permit application form is, to the best ofmy knowledge, correct and that the project will he constructed in conformance with the approved plans, that the required deed restrictions and protective covenants will be recorded, and that the proposed project complies with the requirements of the applicable ;tormwatyr rules u46� NCAC 21-1 .1000.. SL 2006-246 (Ph. II — Post Construction) or SL 2008-21 I. Signatur Date: 3 iz — a Notary Puhlic for the State of IA—. County of f1,I—prii\ #t- do hereby certify that X `i C dam, QX 4�S personally appeared be lore me this day of to Orj y} qD I Z._, and acknok�)q W the due exe�Wio/of ttye 4pplication for a stormwater permit. Witness my hand and official seal :KAHLEEN I<R xUWlr7xrc OMM. #1843757az _ ry Public - California OAlameda Countym, i=xpires May 4, 2013 J i KATHLEEN M.KUWITZKY SEAL p COMM. #1843757 z �► Notary Public . California o z Alameda County My Comm. Expires May 4, 2013 My commission expires ry tA!j t{ o�U I-orm SWU-101 Version 07,fun2010 Page 6 of 6 PermitNumber! (to. be provided by DWO) ' DF WA7F9 AGA O`er QG h r r NCDENR EXPRESS STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM wfly"' MAR 16 202 BIORETENTION CELL SUPPLEMENT This form most be filled out, printed and submitted. NCFPe equired Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name SIMPSON STRONG TIE Contact name DEREK DAIL Phone number 252.261-3300 Date March B, 2012 Drainage area number #t II. DESIGN INFORMATION Site Characteristics Drainage area 8,945 ft2 lmpervious area 5,990 ft2 Percent impervious 67.0% % Design rainfall depth 1.5 inch Peak Flow Calculations Is prelpost control of the 1-yr, 24-hr peak flow required? 1-yr, 24-hr runoff depth 1-yr, 24-h r intensity Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Pre/Post 1-yr, 24-hr peak control Storage Volume: Non -SA Waters Minimum volume required Volume provided Storage Volume: SA Waters 1.5" runoff volume Pre -development 1-yr, 24-hr runoff Post -development I -yr, 24-hr runoff Minimum volume required Volume provided Cell Dimensions Ponding depth of water Ponding depth of water Surface area of the top of the bioretention cell Length: Width: -or- Radius Media and Soils Summary Drawdown time, ponded volume Drawdown time, to 24 inches below surface Drawdown time, total: In -situ soil: Soil permeability Planting media soil: Soil permeability Soil composition %Sand (by volume) • Fines (by volume) n (Y or N) 3.16 in 0.132'inlhr " Cc�efa c 0.005 ft31sec - F lo'J 'J�° "" �A u(o�+' y aq t3 � n't-art $-{p!v►i �1Q 0.000ft3lsec - t%oCeA•A*tiOr. s -0.005 ft3/sec i n -5 -% t4 rc -Ir' o n 767.0 ft3 855.0 ft3 OK it it it 0 it it Lou erg 7.2 inches Insufficient ponding depth. 0.60 it 1,882.0 ft2 OK (C�JO 110 ft --q ;C Le by fi pj OK — J 17 it it OK 4.8 hr OK 16 hr OK 20.8 hr LESS THAN 0.5 inlhr OK 1,50 in/hr OK 85% OK 10% OK �. 9" t3eIaQ k �' Form SW401-Bioreten6on-Rev.8 June 25, 2010 Parts I and If. Design Summary, Page 1 of 3 % Organic (by volume) 5% OK Total: 100% Permit Number: (to be provided by DWQ) Phosphorus Index (P-Index) of media 10 (unitless) OK Form SW401-13ioretentbn-Rev.8 June 25, 2010 Parts i and II, Design Summary, Page 2 of 3 Permit Number: (to be provided by DIWO) 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 treesishrubs? 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? 14.00 fms4 y (Y or NJ in (Y or N) 13.41msl 0 inches Insufficient mulch depth, unless installing grassed cell. 11.91msl 1.5 1t n ft Y (Y or N) How many clean out pipes are being installed? 6 OK What factor of safety is used for sizing the underdrains? (See 4 OK BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and - fitt p . S — 5 cr e4-A; t the bottom of the cell to account for underdrains Bottom of the cell required—1Bimsl il,K SHWT elevation 10.91msl Distance from bottom to SHWT — G4t &. s Internal Water Storage Zone (IWS) Does the design include IWS n (Y or N) Elevation of the top of the upturned elbow fmsl Separation of IWS and Surface 44.4 A o s%+ S Planting Plan Number of tree species 0 Number of shrub species 0 Number of herbaceous groundcover species 0 Recommend more species. N 1A Bras Additional Information Does volume in excess of the design volume bypass the y (Y or N) Enter Data t as bioretention cell? CxcesS Fnu ah� 5c3 Co Does volume in excess of the design volume flow evenly distributed `i 14 V G +4 F G e w av E R GRASS through a vegetated filter? Y (Y or N) Enter Data See b e-vR;1 What is the length of the vegetated filter? >10 ft Does the design use a level spreader to evenly distribute flow? in (Y or N) Show how flow is evenly distributed. Is the BMP located at least 30 feet from surface waters (50 feet if y (Y or N) OK SA waters)? Is the BMP localed at least 100 feet from water supply wells? y (Y or N) OK Are the vegetated side slopes equal to or less than 3:1? y (Y or N) OK Is the BMP located in a proposed drainage easement with access y (Y or N) OK to a public Right of Way (ROWJ? Inlet velocity (from treatment system) 41 Wsec OK Is the area surrounding the cell likely to undergo development in the n (Y or N) OK future? Are the slopes draining to the bioretention cell greater than 20%? in (Y or N) OK Is the drainage area permanently stabilized? y (Y or N) OK Pretreatment Used (Indicate Type Used with an "X" in the shaded cell) Gravel and grass (S'inches gravel followed by 3-5 ft of grass) x Grassed Swale OK Forebay Other Form SW401-Bioretention-Rev.8 June 25. 2010 Parts I and II. Design Summary, Page 3 of 3 Permit No: {to be assigned by DWQ] Ill. REQUIRED fTEMS 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, 1�Ir0 1 Z 1. Plans (V - 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), Coll dimensions, Pretreatment system, High flow bypass system, Maintenance access, Recorded drainage easement and public right of way (ROW), g /A Clean out pipe locations, j} u 41 h r r 1 A C N t' law + Overflow device, and -Boundaries of drainage easement. / A i 1 2. Plan details (V = 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. N/ti Indicate the P-Index between 10 and 30 3. Section view of the bioretention cell (V = 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), 457 stone, underdrains (if applicable), SHWT level(s), and overflow structure] 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The 41ct r A014 results of the soils report must be verified in the field by DWO, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. All elevations shall be in feel mean sea level (imsl). 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. � � 2 5. A detailed planting plan ( V = 20' or larger) prepared by a qualified individual showing: A variety of suitable species, 5 e 4 S �� 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. 6. A construction sequence that shows how the bioretention cell will be protected from sediment until the II A entire drainage area is stabilized. Celt i$ +tI %n 0� t� Con S if �.c{ i C w tic }',)'*j W f ih At ke� 7. The supporting calculations (including underdrain calculations, if applicable). 1 M) S. A copy of the signed and notarized inspection and maintenance (I&M) agreement. 0 9. A copy of the deed restriction. Form SW401•13ioretenCon•RevY Part III, Page 1 of 1 • Permit Number: vi (to be provided by 0WQ} ' Oa�F W A rFq¢G - Y r 1 NCDENR 4 EXPRESS STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM MAR 16 2012 BIORETENTION CELL SUPPLEMENT pp►►���+ This form must be filled out, printed and submitted. atl'rhe tRms Checklist (Part III) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name SIMPSON STRONG TIE Contact name DEREK DAIL Phone number 252.261.3300 Date March 8, 2012 Drainage area number #2 II. DESIGN INFORMATION Site Characteristics Drainage area 10,724 1? Impervious area 7,820 1t2 Percent impervious 72.9% % Design rainfall depth 1.5 inch Peak Flow Calculations Is prelpost control of the 1-yr, 24-hr peak flow required? n (Y or N) 1-yr, 24-hr runoff depth 3.16 in 1-yr, 24-h r intensity 0.132 in/hr Pre -development 1-yr, 24-hr peak flow 0.005 ft3lsec — Post -development 1-yr, 24-hr peak flow 0,000 ft3lsec — Pre/Post 1 •yr, 24-hr peak control -0.005 ft3/sec Storage Volume: Ill Waters Minimum volume required 983.0 ft3 Volume provided 989.0 ft3 Storage Volume: SA Waters 1.5 runoff volume ft3 Pre -development 1-yr, 24-hr runoff it Post -development 1-yr, 24-hr runoff it Minimum volume required 0 ft3 Volume provided ft3 Cell Dimensions Ponding depth of water 7.2 inches Ponding depth of water 0.60 it Surface area of the top of the bioretention cell 2,034.0 it Length: 121 it Width: 17 it -or- Radius it Media and Soils Summary Drawdown time, ponded volume 4.8 hr Drawdown time, to 24 inches below surface 16 hr Drawdown time, total: 20.8 hr In -situ soil: Soil permeability LESS THAN 0.5 in/hr Planting media soil. Soil permeability 1.50 in/hr Soil composition Sand (by volume) 850/0 Fines (by volume) 10% bA U � O ivy In'F'r Qvt OK 'Jidot iah� (burrwJ G rtANtycs EM-;rc- S,Ar V0\ Insufficient ponding depth, - L_ O J OK OK OK OK OK OK OK OK OK Form SW401-Bioretention-Rev.8 June 25, 2010 Parts I and II. Design Summary, Page I of 3 Permit Number: (to be provided by tJ WO) % Organic (by volume) Phosphorus Index (P-Index) of media 5% OK Total: 100% 10 (unitless) OK Form SW401-8ioretention•Rev.8 June 25, 2010 Parts I and II. Design Summary, Page 2 o1 3 Permit Number: (to be provided by DWO) 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 Si Internal Water Storage Zone (fWS) 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 Iocaled 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 (S'inches gravel followed by 3.5 it of grass) Grassed swale Forebay Other 14.00 fmsl Y (Y or N} n (Y or N} 13.4 fmsl 0 inches Insufficient mulch depth, unless installing grassed cell, 11.9 fmsl 1.5 ft n tt Y (Y or N) 6 OK 3 OK —rt-ft 0- S -See.. 6 e 49-g-fmsl 41•t1 r 10.9 fmsl r ::9A O rS n (Y or N) fmsl 0 0 0 Recommend more species. >v,��•ss 171au pc,sses 13ro (et( y (Y or N) OK v �a W e;r over (+'.csse y (Y or N) Enter Data CSi.nitoW� '30"^r See >10 it 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 C 1 fusec OK n (Y or N) OK n (Y or N) OK y (Y or N) OK x �73 Form SW401•Bioretention-Rev.8 June 25, 2010 Parts I and II. Design Surnrnary, Page 3 of 3 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 iolfowing 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 he D h 6 �)A�l Pagel Plan Sheet No. tf2 t E 2- oxcr APar• Plans (f" - 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), ht 4 Clean out pipe locations, Overflow device, and -Boundaries of drainage easement. u A 2. Plan details (1" = 30' or larger) for the bloretention 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. N/A Indicate the P-Index between 10 and 30 P{;vc'f'e Proarf-t� NF����<1 3. Section view of the bioretenlion 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) 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. All elevations shalt 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. 5. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing: A variety of suitable species, vJ 1 S a)] Sizes, spacing and locations of plantings,S c•� 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. Z) Ro 6. A construction sequence that shows how the bioretention cell will be protected from sediment until the entire drainage area is stabilized. (. a o +1 Lc o„ t� cow L) 7. The supporting calculations (including underdrain calculations, if applicable). t-tc.rr ,�p�A S. A copy of the signed and notarized inspection and maintenance (I&M) agreement. q 1A 9. A copy of the deed restriction. Form SW401-Bioretention-Rev.7 Part Ill, Page 1 of 1 Permit Number: 5w 7/ -20 3%�t2 {to be provided by DWQ) A FWA NCDENR EXPRESS MAR 16 2012 STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT (� [�� �� This form must be filled out, printed and submitted, �Fi1d'Re�quired hems Checklist (Part ttl) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name SIMPSON STRONG TIE Contact name DEREK DAIL Phone number 252-261-3300 Date March 8, 2012 Drainage area number #3 II. DESIGN INFORMATION Site Characteristics Drainage area 6,4761t2 Impervious area 4,698 It Percent impervious 72.5% % Design rainfall depth 1,5 inch Peak Flow Calculations Is prelpost control of the 1-yr, 24-hr peak flow required? I -yr, 24-hr runoff depth 1-yr, 24-hr intensity Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Pre/Post 1-yr, 24-hr peak control Storage Volume: Non -SA Waters Minimum volume required Volume provided Storage Volume: SA Waters n (Y or N) 3.16 in 0.132 in/hr �A t,16� A�� CegCeaIe. 0.003 ft3lsee — FIv� row k },ra S--or- 0.000 ft3lsec — 3,o of o^ `V%4` `S -0.003 ft3lsec V itF 'kx �i X`t rG 4"' &A 591,0 it 600.0 it OK 1.5" runoff volume it Pre -development 1-yr, 24-hr runoff it Post -development 1-yr, 24-hr runoff €t3 Minimum volume required 0 it Volume provided It Cell Dimensions rr r• r` 1 8 e tO.J Ponding depth of water 7.2 inches Insufficient ponding depth. L- 0W Ponding depth of water 0.601t Surface area of the top of the bioretention cell 1,226.0 it OK Length: 66 it OK Width: 19 f1 OK -or- Radius it Media and Soils Summary Drawdown time, ponded volume 4.8 hr OK Drawdown time, to 24 inches below surface 16 hr OK Drawdown time, total: 20.8 hr In -situ soil: Soil permeability LESS THAN 0.5 in/hr OK Planting media soil: Soil permeability 1.50 inlhr OK Soil composition • Sand (by volume) 85% OK % Fines (by volume) 10% OK Form SW401-Bioreiention-Rev.8 June 25, 2010 Parts I and II, Design Summary, Page 1 of 3 % Organic (by volume) 5% OK Total: 100% Permit Number; (to be provided by OWQ) Phosphorus Index (P-Index) of media 10 (unilless) OK Form SW401-Bioretention-Rev.8 June 25, 2010 Parts I and If. Design Summary, Page 2 of 3 Permit Number: (to be provided by DWO) 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? 14.00 fmsl y (Y or N) n (Y or N) 13A fms! 0 inches Insufficient mulch depth, unless installing grassed cell. 11.9 imsl 1.5 it 0 it Y (Y or N) How many clean out pipes are being installed? 4 OK What factor of safety is used for sizing the underdrains? (See 5 OK BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and See D e i r� t 1 the bottom of the cell to account for underdrains Bottom of the cell required—*,-9.fmsl tt�� SHWT elevation 10.9 fmsl Distance from bottom to SHWT —A it O. S Internal Water Storage Zone (IWS) Does the design include IWS n (Y or N) Elevation of the top of the upturned elbow fmsl Separation of IWS,and Surface 13A lit '-A ° _ "s Planting Plan Number of tree species 0 Number of shrub species 0 u 1 A G c a s s e Number of herbaceous groundcover species 0 Recommend more species. Additional Information Does volume in excess of the design volume bypass the E x c e s s Flaw �csS�S g;o �Pt1 s s bioretention cell? y (Y or N) OK 'V iN 10 NJ over t"a 1�e+e,, ii Does volume in excess of the design volume flow evenly distributed Y (Y or N) Enter Data sec through a vegetated filter? What is the length of the vegetated iiiter? 10 it Does the design use a level spreader to evenly distribute flow? n (Y or N) Show how flow is evenly distributed. Is the BMP located at least 30 feet from surface waters (50 feet if y (Y or N) OK SA waters)? Is the BMP localed at least 100 feet from water supply wells? y (Y or N) OK Are the vegetated side slopes equal to or less than 3:1? y (Y or N) OK Is the BMP located in a proposed drainage easement with access Y (Y or N) OK to a public Right of Way (ROW)? Inlet velocity (from treatment system) 1 ftlsec OK Is the area surrounding the cell likely to undergo development in the n (Y or N) OK future? Are the slopes draining to the bioretention cell greater than 20%? n (Y or N) OK Is the drainage area permanently stabilized? y (Y or N) OK Pretreatment Used (Indicate Type Used with an "V in the shaded cell) Gravel and grass (8`inches gravel followed by 3-5 it of grass) x Grassed swale OK Forebay Other Form SW401•Bioretention-Rev.8 June 25, 2010 Parts I and If. Design Summary, Page 3 of 3 Permit No: (to be assigned by DWQ) III. REQUIRED ITEMS CFFECKLIST, v 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 kD DAra ?A� Page/ Plan Sheet No. If2 1 f2- 2. 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), Celt dimensions, Pretreatment system, High flow bypass system, Maintenance access, Recorded drainage easement and public right of way (ROW), 914- Clean out pipe locations, Overflow device, and -Boundaries of drainage easement. PIA 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. e41A Indicate the P-Index between 10 and 30 Pr:vc{•e rlr—cdcc ¢ 5%Jmrr IACA,r e,µN+ 3. Section view of the bioretention cell 0 " = 20' or larger) showing: Side slopes, 3:1 or lower Underdrain system (if applicable), and Biorelention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media depth, washed sand, filter fabric (or choking stone if applicable), H57 stone, underdrains (if applicable), SHWT level(s), and overflow structure] 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. 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. 5. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing: A variety of suitable species, j $ c p Sizes, spacing and locations of plantings, 3 r 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. 6. A construction sequence that shows how the bioretention cell will be protected from sediment until the entire drainage area is stabilized. Crrt �� +kc nw,►� coRsirw�kce. acA'"+'4 %j PAI . ked 7. The supporting calculations (including Underdrain calculations, if applicable). Nc.rr ApPJA 8. A copy of the signed and notarized inspection and maintenance (I&M)agreement. 9. A copy of the deed restriction. Form SVV401-Korete0ion.Rev.7 Part III, Pago 1 of 1 ti Permit Number: f 2 yJ�-7 (to be provided by OWQ) i of wart At"Aw NCDENR p c EXPRESS STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM MAR 16 201Z BIORETENTION CELL SUPPLEMENT ^ p)F"' This form most be filled out, printed and submitted. e u to Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information, I. PROJECT INFORMATION Project name SIMPSON STRONG TIE Contact name DEREK DAIL Phone number 252.261-3300 Date March 8, 2012 Drainage area number #4 II. DESIGN INFORMATION Site Characteristics Drainage area 3,401 it Impervious area 1,581 ft2 Percent impervious 46.5% % Design rainfall depth 1.5 inch Peak Flow Calculations Is pre/post control of the 1-yr, 24-hr peak flow required? 1-yr, 24-hr runoff depth 1-yr, 24-hr intensity Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow PrelPost 1-yr, 24-hr peak control Storage Volume: Non -SA Waters Minimum volume required Volume provided Storage Volume: SA Waters 15' runoff volume Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff Minimum volume required Volume provided Cell Dimensions Ponding depth of water Ponding depth of water Surface area of the top of the bioretention cell Length: Width: -or- Radius Media and Soils Summary Drawdown time, ponded volume Drawdown time, to 24 inches below surface Drawdown time, total: In -situ soil: Soil permeability Planting media soil: Soil permeability Soil composition % Sand (by volume) % Fines (by volume) n (Y or N) 3.16 in 0.132 in/hr r 0.0021t31sec� Flog �rav++ Dn % au{ Ar� f�vct�clgt 0.0001t%eC — i iQrct�nt�o+� ticnpycf �niiPc g�ornn -0.002 it3lsec vi& 222.0 it 326.0 113 OK it3 it3 it 3 0 it it ll 7.2 inches Insufficient ponding depth. 1. o j e re d 0.60 it 777.0 it S5S OK 45 ft 'iS� OK 17 ft OK d ft 4.8 hr OK 16 hr OK 20.8 hr LESS THAN 0.5 in/hr OK 1.50 inlhr OK 85% OK 10% OK 1-2" Oe1. J q ` Form SW401-Bioretontion-Rev. 8 June 25, 2010 Paris I and IL Design Summary, Page 1 o1 3 0 Y % Organic (by volume) 5% OK Total: 100% Permit Number: (to be provided by DWQ) Phosphorus Index (P-Index) of media 10 (unitless) OK Form 5W401-Bioretention-Rev.8 Jurie 25, 2010 Parts I and II. Design Summary, Page 2 of 3 Permit Number: (to be provided by 1)1 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 treesishrubs? 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? 14.00 fmsl y (Y or N) kr�medis kept# n (Y or N) 13A fmsl 0 inches Insufficient mulch depth, unless installing grassed cell. 11.9 fmsl 1,5 it n ft Y (Y or N) How many clean out pipes are being installed? 4 OK What factor of safety is used for sizing the underdrains? (See p;AcS �a U s d cc} 13 Insufficient factor of safety. BMP Manual Section 12.3.6) r, 5. = �. u 5 �o1— a-Ac P 01 C Additional distance between the bottom of the planting media and , 5; t r the bottom of the cell to account for underdrains 0 S See c� Bottom of the cell required 4&9-fmsl SHWT elevation 10.9 fmsl Distance from bottom to SHWT r Internal Water Storage Zone (IWS) Does the design include IWS n (Y or N) Elevation of the top of the upturned elbow fmsl Separation of IWS. and Surface 434 it 11-46 S VS Planting Plan Number of tree species 0 Number of shrub species 0 Number of herbaceous groundcover species 0 Recommend more species. g /jk — &f A ssc Additional information Does volume in excess of the design volume bypass the y (Y or NJ OK xc� t 1eU 13 P a = Scs Q � 0 bioretention cell? v", wii 3 ta41 Oder q r� ssc Does volume in excess of the design volume flow evenly distributed y (Y or N) Enter Data S c e iJ e f4 r i through a vegetated filter? What is the length of the vegetated filter? 10 it Does the design use a level spreader to evenly distribute flow? n (Y or N) Show how flow is evenly distributed. Is the BMP located at least 30 feet from surface waters (50 feet If y (Y or N) OK SA waters)? Is the BMP localed at least 100 feet from water supply wells? y (Y or N) OK Are the vegetated side slopes equal to or less than 3:1? y (Y or N) OK Is the BMP located in a proposed drainage easement with access y {Y or N) OK to a public Right of Way (ROW)? Inlet velocity (from treatment system) 1 ftlsec OK Is the area surrounding the cell likely to undergo development in the n (Y or N) OK future? Are the slopes draining to the bioretention cell greater than 20%? n (Y or N) OK Is the drainage area permanently stabilized? y (Y or N) OK Pretreatment Used (Indicate Type Used with an X' in the shaded cell) Gravel and grass (8+inches gravel followed by 3.5 it of grass) x Grassed swale OK Forobay Other Form SW401-8ioretentior-Rev.8 June 25, 2010 Parts I and II. Design Summary, Page 3 of 3 y Permit No: --- (to bo assigned by DWO) III:, REQUIRE© ITEMS CHECKLIST: r 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. Page/ Plan Initials Sheet No. k� [ f 2 1. Plans (1" - 50' or larger) of the entire site showing: Design a1 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), J Clean out pipe locations, x a r d r. *{ i A o 0 r' 1 o,} Overflow device, and -Boundaries of drainage easement. PIA fF 6 1 2 2. Plan details (1" = 30' of larger) for the bioreteniion 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. ►41A Indicate the P-Index between 10 and 30 3. Section view of the bioreteniion cell (1' = 20' or larger) showing: Side slopes, 3:1 or lower Underdrain system (it applicable), and Bioretention cell layers [ground level and slope, pre-treatment, pending 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] `` 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The H«r Apo* results of the sails report must be verified in the field by DWO, 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 (imsl). Results of soils tests of both the planting soil and the in situ soil must include: Sail permeability, Soil composition (% sand, % fines, % organic), and P-index. �A� 2 5. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing: A variety of suitable species, ( S e p 13 a (elk 3 [ s S 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. 2- 6. A construction sequence that shows how the bioretention cell will be protected from sediment until the entire drainage area is stabilized. C e it i� +im e o� 1� co„ S-ir,. A*, e „ k c 7. The supporting calculations (including underdrain calculations, if applicable), 1�4rr 8. A copy of the signed and notarized inspection and maintenance (i&M), agreement. r 9. A copy of the deed restriction. Form SW401-Bioretention-Rev. 7 Paii III, Page 1 of 1 %EXPRESS MAR 16 2012 Permit Number: !1,.1 t% I)-,D 3o`7 (to he provided by D W'Q) NCDE8�R Drainage Area Number: 9�3 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 problerns with erosion. Stone verge is clogged or Remove sediment and clogged covered in sediment (if stone and replace with clean stone. a2plicable). Dorm SW401-13ioretention O&M-Rev.3 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. allies 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. Dorm SW401-13ioretention 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- ou tlet. 733-1786. Form SW401-11ioretention O&M-Rev.3 1'abe 3 of 4 Permit Number: {1n be provided by IDUQ) acknowledge and agrcc 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: Simpson Strong -Tie BMP drainage area number: I Print name -.Karen Colonias Title:Simpson Strong -Tic Company, Inc Secretary/Treasurer Address: P.O. Box 585, Edenton, NC 27932 Phone: (925)-560-9000 Signature:—__ // Date: 'T//Z Note: The legally responsihlc party should not he a homeowners association unless more than 50%of' the lots have been sold and a resident ol'the subdivision has been named the president. N Yam_ T Z Y,4 , a Notary Public for the State of' c A%,N,E]M�L3 A- , County of A- .=PC-D 8- , do hereby certify that cknt%�&s personally appeared before me this 1, _ day of lAfT ,ew , 20I2 , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, KATHLEEN M. KUWITIKY r COMM. #1843757 z = Notary Public •California o z Alameda County My Comm. Expires May 4, 2013 SEAL My commission expires rAr4y Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4 EXPRESS MAR 16 2012 Permit Number: (!n he provided by Dlt�r7) Drainage Area Number: 22- � fifo oet�erih3an 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 betaken 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 1.4 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and wit] 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 the roblem: 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), Form SW401-13ioretention O&M-Rev.3 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 necessarv. 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 lantin media. Form SW401-13ioretention O&M-Rcv.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 SW401-11ioretention 0&M-Rev.3 Page 3 ol'4 Permit Number: (to he provided h I DW& 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: Simpson Strong fie BMP drainage area numbe Print name: Karen Colonias Title:Simpson Strong -Tie Company, Inc Secretary/Treasurer Address: P.O. Box 585, Edenton, NC 27932 Thor Sign Date Note: 'I'he legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident ofthe subdivision has been named the president. a Notary Public for the State of C�LiFo2�, �L, County of P. , do hereby certify that Cis a S personally appeared before me this J-2-: day of M+A�.� �r ao i �, and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, KATHLEEN M. KUWITZKY @,My COMM, #1843757 z 0 Notary Public • California o zAlameda County Comm. Expires Nlla 4, 2013 SEAL My commission expires h++-1 Lf 2O13 Form SW401-13iorctcntion I&M-Rev. 2 Page 4 of 4 EXPRESS MAR 16 2012 Permit Number: (to be provided by 1)N'Q) Drainage Area Number: 3 WiDeri ion 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 l 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 a lication. 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 a licable). 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 SW401-131oretention O&M-Rev.3 Page I of BMP element: Potential roblems: 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 eroblems. 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 necessarv. "Free 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 SW401-1.3ioretention O&M-Rev.3 Pagc 2 of 4 BMP element: I 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. Dorm SW401-11ioretention 0K:M-RcN-.3 Page 3 of 4 Permit Number: (to be provided bY DINQ) 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: Simpson Strong -Tie BAIP drainage area numher: Print name:Karen Colonias Title:Simpson Strong -Tie Company, Inc Secretary/Treasurer Address: 11.0. Box 585, Edenton, NC 27932 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. 1, K,Ptrw�y-Lia nn. __ _, a Notary Public for the State of Q0, 0pa� IAA , County of 1�� m�n�1 , do hereby certify that V Cd �.�„ap.-s personally appeared before me this � day of KI*ACU , 2Q12— , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, KATHUMN M. KUYIITZKY _ COMM. #1843757 z Notary Public California o z Alameda County s My Comm. Ex Tres May 4, 2013 SEAL My commission expires YY► M k ao t3 Form SW401-13iorelention IKM-Rev. 2 Page 4 of 4 EXPRESS MAR 16 2012 Permit Number: (to he provided 6y DWQ) Drainage Area Number: 4 NC ®ENFAioretention 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 die 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). Dorm SW401-13ioretention OEM-Rcv.3 Page 1 of 4 BMP element: Potentialproblems: How I will remediate the roblem: 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 problerns. 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 SW401-13ioretention O&M-Rev.3 Page 2 of 4 BMP element: Potentialproblems: I How l 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- ou tle t. 733-1786. Form SW401-11iorctention O&M-Rev.3 Page 3 of 4 Permit Number. (to he provided by DIVQ) 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: Simpson Strong -Tie 13A4P drainage area numher:4 Print name:Karen Colonias Title:Sim son Strong -Tic Company, Inc Secretar /Treasurer Address: P.O. Box 585, Edenton, NC 27932 Phone: (925)-560-9000 Signature: Date: fZ Note: 'I•he legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident ofthe subdivision has been named the president. I, M • a Notary Public for the State of Ca\1k,.Q vim; County of L-�.M��, , do hereby certify that (ae�� en�o.p;as personally appeared before me thisj,Pl�' day of Yh,P kC-)4c �D lam, and acknowledge the clue execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal. KATHLEEN M. KUWITIKY o COMM, #1843757 z -Q Notary Public California z Alameda County o My Comm, Expires May 4, 2013 SEAL My commission expires M1*1 4 go (3 Form SW401-11iorctcntion I&:M-Rev, 2 Page 4 of 4