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Home My WebLink AboutSW7060532_HISTORICAL FILE_20210726STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW�� DOC TYPE ❑ CURRENT PERMIT ❑ ' APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE- 1 {; .� D YYYYMMDD W a q-o ROY COOPER Governor JOHN NICHOLSON Interim Secretary BRIAN WRENN Director NORTH CAROLINA Environmental Quality July 26, 2021 City of Elizabeth City Attention: Montre' Freeman, City Manager P.O. Box 347 Elizabeth City, NC 27907-0347 Subject: Stormwater Permit Renewal Stormwater Management Permit SW7060532 Elizabeth City Airport Apron Expansion (2006) Pasquotank County Dear Mr, Freeman: A Division of Energy, Mineral, and Land Resources file review has determined that. Stormwater Permit SW7060532 for a stormwater treatment system consisting of a bioretention area serving the Elizabeth City Airport Apron Expansion in 2006 located at 1028 Consolidated Road, Elizabeth City, NC expired on May 30, 2020. This is a reminder that permit renewal applications were due 180 days prior to expiration. We do not have a record of receiving a renewal application. This permit is now expired and therefore the city is operating without a valid permit. 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: https://deq.nc.gov/about/divisions/energy-mineral-and-land- resources/stormwater/stormwater-program/post-construction-2. North Carolina General Statutes and the Coastal Stormwater rules require that this property be covered under a stormwater permit. 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 roger. thora ncdenr. ov. Sincerely, GV( eL �l Roger K. Thorpe Environmental Engineer 4P North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources Washington Regional Office 1 943 Washington Square Mall I Washington, North Carolina 27889 N4�N CAAOINA l , 252.946.6481 05/24/2006 15:15 FAX 2523376864 Md YOR/M1VA6ER OFFICE [ij001/001 �5/24f2666 1i8:95 9106924795 =o/ to a Hobbs, Upchurch & A ct t s P--A- Carisalfiag Eftv"A" FACSIMILE i?]tonc:0-692-4795 6 Fax.' 914-692-4795 TO. Representative Bill Owens (Pasquotank 0-tidty) Cc, Rich Olsen, City N[anager City ofFlizaheth City ]FROM: Jeff 1nornpion . J. Robb&, Upchurch & Amciatel, P.A, DA3'E 1 5-24-06 81 Aj>-.th Coy Aitport r Apron Expamir2rl Sturmwatcr Permit MESSAGE: Dcar FAX NUMBER: 919-834-fans NO. OFPAGES; 1. Vnehfdivcover) TTvl:ii: O A f1 I.am writing you on tha behalf of Fred Hobbs addus for your ht;lp in this marter. AsEt brief summary of QSe issue,'We are pursuing an Wtws stOs'1>I'14Vt1t4P peMit for this project. We have met with the DWQ Wsshingten Regional Office m discuss the project and have made revisions m our plan based on their comments. Wd tkideretood from them tllut 0A415 tIA6 M%�Sjons wtm m2de, the penrnt would be approved_ W4t AZ4 now heady m submit the pleas for permitting and hAvo been told that because of a backlog of peru& applications, we won't *lest be sllpwed to submit the application far two more creeks. At that paint, they would review it and make a detmt motion. Due to the time scnitivG OR"'! of this Project, and the clos4 construction window for this year, we cannot wait unodwr two weeks before ge ing Us pemrit, As another rantrietion, due to the EDA fimdirj requiremonta, we cannot rgove fbrwasd with anything umttl the pemnts have beat obtained. We are ovemighting the permit to DWQ tOdaY. Fred has askicd ttm too'and you a request for ha1p, to Sec if yvu could belp ;4t t4dfi perndt apprnved AS soot' as possible. The cannct information in WashingMY1 is: Al Hodge DWQ WQ 5upmisw Scott Vinson - DWO keviewer / 943 WasNto an, Squaw loan � 1 4 i� WasMatIaG 27889 Ph: 252-946-6491 Fax: 25 2-97 5--1716 0� �s -&&ffZ NCDENR North Carolina Department of Environment and Natural Resources 943 Washington Square Mall, Washington NC 27889 (252) 946-6481 FAX (252)975-3715 Request for Express Permit Review FILL-IN all information below and CHECK required Permit(s). Please include this with the application package upon submittal. Project application received after 12 noon will be stamped in the following work day. Thank you! Lyn Hardison lyn,hardison@ncmail.net APPLICANT Name City of Elizabeth City Company _Rich Olson , City Manager Address —PO Box 347 CitylState___-Elizabeth City, NC Zip_27909_ Phone_252.338.3981 Fax Email PROJECT Name Elizabeth City Airport Apron Expansion PROJECT LOCATION (ADDRESS) 1028 Consolidated Road, Elizabeth City, NC ENGINEER/CONSULTANT Jeff Thompson Company —Hobb, Upchurch_& Associates, PA County_Pasquotank 27909_(on SW 1311) Address_300 SW Broad Street, PO Box 1737 CitylState_Southern Pines, NC Zip_28388 Phone_910.692.5616 Fax 910.692.4795 . Email State or National Environmental Policy Act (SEPA, NEPA) -- EA or EIS Required ❑Yes ❑ No ❑ STREAM ORIGIN Determination; # of Stream calls; Stream Name 0 ----------------------------------------------------------------- --------------------- STORMWATER ❑ Low Density ® High Density -Detention Pond ❑ High Density -Other ❑ Low Density -Curb & Gutter ❑ High Density -Infiltration ❑ Off Site PROJECT SYSTEM(S) TRIBUTARY TO PASQUOTANK RIVER STREAM NAME PASQUOTANK RIVER BASIN ------------------------------------------------------------------------------------------------------------- ❑ COASTAL '❑ Excavation & Fill ❑ Bridges & Culverts MANAGEMENT ❑ Upland Development ❑ Marina Development ------------------------------------------------------------------------------------------------------------- ;< LAND QUALITY ❑ Erosion and Sedimentation Control Plan with ❑ Structures Information ❑ Urban Waterfront 5.7� acres to be disturbed. CK # 097421 --------------------------------------------------------------------------------- ❑ WETLANDS (401) ❑ No Wetlands on Site (letter from COE) ❑Wetlands Delineated/No JD ❑ Greater than 0.1 AC Wetlands Impacted ❑Jurisdictional Determination has been done ❑ Less than 0.1 AC Wetlands Impacted ❑Greater than 0.5 AC Wet#ands Impacted CIRCLE YIN: 401 Application ❑Yes ❑ No 404 Application in Process w1USC0E ❑Yes ❑ No The legislation allows additional fees, not to exceed 50% of the original Express Review permit application fee, to be charged for subsequent reviews due to the insufficiency of the permit applications. For DENR use only CHECK # 097422 SUBMITTAL DATES: Fee Split for multiple permits: SW _5/25/06 _(HD)_ $_2909.09 CAMA $ LQS _5/25/06 $ 1090,91 401 $^ Total Fee Amount $ 4000.00 ' Specifications for Bio-retention Area MAY �' rI ioflri Material Specifications Q_ WQ'1vV1ip RO The allowable materials to be used in bioretention area are detailed in Table 2. Planting Soil The soil shall be a uniform mix, free of stones, stumps, roots or other similar objects larger than two inches. No other materials or substances shall be mixed or dumped within the bioretention area that may be harmful to plant growth, or prove a hindrance to the planting or maintenance operations. The planting soil shall be free of noxious weeds. The planting soil shall be tested and shall meet the following criteria: pH range 5.2 - 7.0 organic matter 1.5 - 4% magnesium 35 Ib.lac phosphorus P2O5 75 Ib.lac potassium K2O 85 lb.lac soluble salts not to exceed 500 ppm All bioretention areas shall have a minimum of one test. Each test shall consist of both the standard soil test for pH, phosphorus, and potassium and additional tests of organic matter, and soluble salts. A textural analysis is required from the site stockpiled topsoil. If topsoil is imported, then a texture analysis shall be performed for each location where the top soil was excavated. Since different labs calibrate their testing equipment differently, all testing results shall come from the same testing facility. Should the pH fall out of the acceptable range, it may be modified (higher) with lime or (lower) with iron sulfate plus sulfur. Mulch Layer The mulch layer shall serve as a pretreatment layer by trapping fine sediments prior to runoff infiltration. It shall consist of standard landscaping coarse shredded hardwood mulch or chips. Grass clippings, pine bark, and pine straw are specifically prohibited and shall not be used in this application. The mulch should be at least 6 months old, while 12 months is ideal. It shall be placed in a uniform depth of approximately 3 inches. Compaction It is very important to minimize compaction of both the base of the bioretention area and the required backfill. When possible, use excavation hoes to remove original soil. If bioretention areas is excavated using a loader, the contractor should use wide track or marsh track equipment, or light equipment with turf type tires. Use of equipment with narrow tracks or narrow tires, rubber tires with large lugs, or high pressure tires will cause excessive compaction resulting in reduced infiltration rates and storage volumes and is not acceptable. Compaction will significantly contribute to design failure. Compaction can be alleviated at the base of the bioretention facility by using a primary tilling operation such as a chisel plow, ripper, or subsoiler. These tilling operations are to refracture the soil profile through the 12 inch compaction zone. Substitute methods must be approved by the engineer. Rototillers typically do not till deep enough to reduce the effects of compaction from heavy equipment. Rototill 2 to 3 inches of sand into the base of the bioretention facility before back filling the required sand layer. Pump any ponded water before preparing (rototilling) base. When back filling the topsoil over the sand layer, first place 3 to 4 inches of topsoil over the sand, then rototill the sand/topsoil to create a gradation zone. Backfill the remainder of the topsoil to final grade. When back filling the bioretention facility, place soil in lifts 12" or greater. Do not use heavy equipment within the bioretention basin. Heavy equipment can be used around the perimeter of the basin to supply soils and sand. Grade bioretention materials with light equipment such as a compact loader or a dozer/loader with marsh tracks. Plant Material Recommended plant material are listed on the plan sheets. Plant Installation Mulch around individual plants only. Shredded hardwood mulch is the only accepted mulch. Pine mulch and wood chips will float and move to the perimeter of the bioretention area during a storm event and are not acceptable. Shredded mulch must be well aged (6 to 12 months) for acceptance. The plant root ball should be planted so 1/8"' of the ball is above final grade surface. Root stock of the plant material shall be kept moist during transport and on -site storage. The diameter of the planting pit shall be at least six inches larger than the diameter of the planting ball. Set and maintain the plant straight during the entire planting process. Thoroughly water ground bed cover after installation. Trees shall be braced using 2" X 2" stakes only as necessary and for the first growing season only. Stakes are to be equally spaced on the outside of the tree ball. Grasses and legume seed shall be tilled into the soil to a depth of at least one inch. Grass and legume plugs shall be planted following the non -grass ground cover planting specifications. The topsoil specifications provide enough organic material to adequately supply nutrients from natural cycling. The primary function of the bioretention structure is to improve water quality. Adding fertilizers defeats, or at a minimum, impedes this goal. Only add fertilizer if wood chips or mulch is used to amend the soil. Rototill urea fertilizer at a rate of 2 pounds per 1000 square feet. Underdrains Under drains to be placed on a 3'-0" wide section of filter cloth. Pipe is placed next, followed by the gravel bedding. The ends of under drain pipes not terminating in an observation well shall be capped. Observation wells and/or clean -out pipes must be provided (one minimum per every 1000 square feet of surface area). Miscellaneous The bioretention facility may not be constructed until all contributing drainage area has been stabilized. Table 2. Materials Specifications for Bioretention IlParameter JISpecification IlSize JINotes 11 Plantings see your local NRCS nla plantings are site -specific Standards and Specifications guidance. Planting Soil sand 35 - 60% nla USDA soil types loamy sand, silt 30 - 55% sandy loam or loam, minimum clay 10 - 25% infiltration rate > 0.52 inlhr Mulch shredded hardwood aged 6 months, minimum pea gravel pea gravel: ASTM D 448 pea diaphragm gravel: and curtain ornamental stone: No. 6 drain washed cobbles stone: 2" to 5" Geotextile Class "C" apparent nla for use as necessary beneath opening size (ASTM-D- underdrains only 4751) grab tensile strength (ASTM-D-4632) burst strenglh (ASTM-D- 4833) underdrain 11 AASHTO M-43 0.25" to gravel 0.75" underdrain ASTM D 1785 or 4" rigid 318" pert. @ 6" on center, 4 holes piping AASHTO M-278 schedule per row; minimum of 3" of gravel 80 PVC over pipes; not necessary underneath pipes poured in See local DOT Standards nla on -site testing of poured -in -place place and Specs.; f c = 3500 Ib.:i concrete required: concrete (if @ 28 days, normal 28 day strength and slump test; all required) weight, air -entrained; re- concrete design (cast -in -place or inforcing to meet ASTM pre -cast) not using previously 615-60 approved State or local standards requires design drawings sealed and approved by a licensed professional structural engineer. sand AASHTO M-6 or ASTM 0.02" to Sand substitutions such as [1' deep] C-33 0.04" Diabase and Graystone #10 are not acceptable. No calcium carbonated or dolomitic sand substitutions are acceptable. No "rock dust" can be used for sand.