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HomeMy WebLinkAbout20001195 Ver 4_Application_20070319T~ L~~E fZT & E~EZ[~HT March 16, 2007 Ms. Cynthia Van Der Wiele, Ph.D. North Carolina Division of Water Quality Parkview Building 2321 Crabtree Blvd. Suite 250 Raleigh, NC 27604 17,1: Q~~c°rni~h~ Uc~li~~~~rt~ E.SC.P 'D O -- 119 5 Y RE: Express Review Storm Water Management Plan Submittal Third Parallel Runway Package 1 -Grading and Drainage Charlotte/Douglas International Airport Charlotte, North Carolina TBI Project No. 2204-0704 Dear Ms. Van Der Wiele, Attached are the following documents which constitute our Express Review Storm Water Management Plan submittal package for the above referenced project: - One (1) original signed application - One (1) original signed Operation and Maintenance Plan - Three (3) copies of the Storm Water Management Plan Book containing: - Copy of Signed Application - Narrative - BMP Worksheets D -Removal Efficiency Calculations ~ D -Manufactured BMP Data - Pavement Sweeper Data Ml1R ~ ,9 Z~07 - Three (3) copies of the Storm Water System and Detention Calculations uEry~ vVA'i~~K L~ui~i.J7y - Three (3) copies of the project specifications ~ANdsro~ygrgR~ - Three (3) sets of project construction plans - Three (3) copies of the 404/401 Permit Application Drawing - Three (3) copies of the Storm Water Management Plan Exhibit Drawings We trust this completes the express review package, along with the $2,500 review fee check that you already have in your possession. ENGINEERING & ['CANNING CONSULTANTS 4944 PARKWAY PLAZA BOULEVARD SUITF; 350 CHARLOTTE. NORTH CAROLINA 28217 704.426.6070 FAX 704.426.6080 CHARLOTTE. NORTH CAROLINA ~ WILMINGTON, NORTH CAROLWA RICHMOND. VIRGINIA ~ COLUMBIA, SOUTH CAROLINA Ms. Cynthia Van Der Wiele, Ph.D. March 16, 2007 Page 2 Please contact us if you have any questions or need additional information. ?.E., P.L.S. Attachments cc: Mr. Jack Christine - CDIA (w/attachments) Ms. Beverley Shull -Turner Construction Mr. Ron Geiger - HDR (w/attachments) OFFICE USE ONLY Date Received Fee Paid Permit Number(s) E. fl O - V State of North Carolina llepartment of Environment and Natural Resources Division of Water Quality 401/ Wetlands Unit EXPRESS REVIEW PROGRAM STORMWATER MANAGEMENT APPLICATION FORM This form may be photocopied for use as an origfnal I. GENERAL INFORMATION 1. Applicant's name (specify the name of the corporation, individual, etc. who owns the project): Charlotte Douglas International Airport (under the name City of Charlotte) 2. Owner/Signing Official's name and title (person legally responsible for facility and compliance): Mr. Jerry Orr, Airport Director 3. Owner Mailing Address for person listed in item 2 above: Post Office Box 19066 City: Charlotte State: NC Zip: 28219 Phone Number: ( 704 ~ 359-4000 Fax Number. ( 704 ~ 359-4950 Email Address: tiorr(a charlotteairport.com 4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Third Parallel Runway 5. Location of Project (street address): 5501 Josh Birmingham Par City: Charlotte County: Mecklenburg 6. Directions to project (from nearest major intersection): East off of I-85 onto Billy Graham Parkway, then right onto Josh Birmingham Parkway 7. Latitude: 35° 12' 20.53" N Longitude: 80° 57' 53.761" W of project 8. Contact person who can answer questions about the project: Name: Pat Turney Telephone Number: ( 704 ) 426-6070 Fax Number : (704) 426-6080 Email Address : pturneV antbiclt.com II. PERMIT INFORMATION: 1. Specify whether project is (check one): ~ New 9/2004 Version 1.0 Page 1 of 4 Renewal Modification Q~~~oer~~ MAR 1 9 2007 1METI,gNp,~ MID ~i1T~RiBTMRMI('.H 2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number and its isst.t.e date (if known) 3. Specify the type of project (check one): Low Density High Density Redevelopment General Permit ~ Other 4, Additional Project Requirements (check applicable blanks): _CAMA Major ~ Sedimentation/Erosion Control ~ 404/401 Permit ____~IPDES Stormwater ____Other Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. 111. PI2OJEC'T INFURMA'I'ION ], In the space provided below, summarize how Stormwater will be treated. Also attach a detailed narrative (one to two pages) describing Stormwater management for the project . Runoff will be treated through the use of sweeping filter strips, grass swales, extended dry detention basins, and manufactured BMP devices. 2, Stormwater runoff from this project drains to the 3. Total Project Area; 660 acres Paw Creek -Catawba 4. Project Built Upon Area: 5. How many drainage areas does the project have? 10 River basin. 20 9'0 6, Complete the following information for each drainage area. If there are more than two 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 (L) Drainage Area 2 (p & H) Receiving Stream Name Beaverdam Creek Little Paw Creek Receiving Stream Class WS-IV; B; CA C Drainage Area 43,65 acres 87.08 acres Existing Impervious* Area 15.64 acres 16.31 acres Proposed Impervious*Area 15.66 acres 30.34 acres 9'o Impervious* Area (total) 35.88% 34.84% Impervious* Surface Area Drainage Area. L (L) Drainage Area 2 (P & H) On-site Brtildings On-site Stxeets .16 1.31 acres On-site Parking Ors-site Sidewalks Other on-site (Runway) 15.506 acres 29.03 acres Off-site Total: 15.66 acres Total: 30.34 acres " Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. 9/2004 Version l .0 Page i of 4 7. How was the off-site impervious area listed above derived? IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot number, size and the allowable built-upon area for each lot must be provided as an attachment. 1. The following covenants are intended to ensure ongoing compliance with state riparian buf~"er authorization or General Certification numbers as issued by die Division of i3~ater Quality. These covenants may not be changed yr deleted w~itlwut the consent of the State. 2. No more than square feet of arty lot shall be covered by struchrrer yr imperyivus materials Impervious materials i»clude asphalt, gravel concrete, bricl~ stone, slate or similar material brrt do not include wood decking or the water surface of s-vimming pools 3. Swales shall not be filled in, piped ar altered except as necessary to provide driveway crossings. ~. Built-upon area in excess of the permitted amount requires a modified water quality certification prior to cvnstruetion. S. .411 permitted runofffrom outparcels orfuture developnsent shall be directed into the permitted stormwater conbo1 system. These eortnections to the stonnwater control system shall be performed in a manner that maintains the integrity and performance of the system as permitted. By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall inr..lude all the applicable items required. above, that the covenants will. be binding on all parties and. persons claiming under them, that they will run with the land, that the regi.aimd covenants cannot be changed or deleted. without concurrence from the State, and that they will be recorded prior to the sale of any lot. V. SUPPLEMENT FORMS The applicable stormwater management supplement. form(s) listed below must be submitted for each BMP specified for this project. The forms are located on the 401/wetlands unit website. Bioretention Worksheet Dry Detention Worksheet Level Spreader Worksheet Urassed Swale Worksheet Extended Detention Wetland /Pocket Wetland Worksheet Wet Detention Worksheet 9/2004 Version 1.0 Page 3 of 4 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. The complete application package should be submitted to the DWQ Central Office. Please indicate that you have provided the following required information. by initialing in the space provided next to each item. rn;rats • Original and two copies of the Express Review Stormwater Management Application • Signed and notazized Operation and Maintenance Agreement • Three copies of the applicable Supplement Form(s) for each BMP • Application processing fee (payable to NCDENR) • Detailed narrative description of Stormwater treatrnentlmanagement • Three copies of plans and specifications, including: - Development/Projectnome - Engineer and firm - Legend - North arrow - Scale - Revision number & date - Mean high water line - Dimensioned. property/project boundary - Location map with named streets or NCSR numbers - Original contours, proposed contours, spot elevations, finished floor elevations - Details of roads, drainage features, collection systems, and Stormwater control measures - Wetlands and streams delineated, or a note on plans that none exist - Existing drainage (including off-site), drainage easements, pipe sizes, runoff' calculations - Drainage areas delineated - Vegetated buffers (where required) VII. AGENT AUTHORIZATION If you wish to designate autkiority to another individual or firm so that tkiey may provide information on your behalf, please complete this section. Designated agent (individual or f`irm): /~/4TRICIL ~. ~R~lEy , /Q. ~, , p4 $, -* riAGJ~e7 ~ ~/Gjrt~~~~, Mailing Address: ¢4 4d- P~r~Ay A1~2.4 Bovt.,f~19~o S'v!Y£ 350 City: __ G~i9XddlTi~ State: /~[G 7..,ip: Z$Z~7 Phone: 1 ?O~' ) ¢'~" (~7D Fax: 1 '7m4- ) Q'ui ~IO~gO VIII. APPLICANT'S CERTIFICATION I, (print or type name of person listed in General Information, Item 2) ~~ ~ ~ ~ (Z~ certify that the information included on this application form is, to the best of my knowledge, correct and that the project will be 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 15A NCAC 2H .1000 Signature:_ ~~-.J Date: 3 ' ~ 7 ' 07 912004 Version 1.0 Page 4 of 4 N m U c 0 .~ 7 C C O U fD N Q N (0 c .~ cC (O ~ ° rn cD N ~ Y a-- ~ (O ~e ~ U Q U ~ Q m y ~ -a > ~ c ~ m ~ ~~ m OHO N M M ~' N r r ~ ~ ~ N N N Q U U ~' 3 N ~ a ~ .~ ca ti ~ ~ T ~ ~_ (~ ~ N N ~ O ~' ~ !C N Q U U °' 3 ~ ~ a ~ . ~ O 0 ~ ~ ~ Y M y ~ cu U 4' ~ U ~' a !~ J (6 N N N Q w f0 ~ Q fA ~ Z U rn o ~ o E E o '~ ~ ~ f0 ~ (6 ~ ~ N y Q ~` ~ ~ Q d ~ N ~ O ~ ~ ' C C C ~ ~ N Z N C . > N > N f0 C ~ C '~ ~ N V V m .- O - m ~ ~ o w a O r N r cD (9 a a> ca c ~ m rn ~ N N O H ti M .- u7 f4 Q m m C ~ '~ M a 0 H r~ N r- 01 O N ~' m 41 Q ~ ~_ cfl [] N f0 O H M N o M M f9 N Q v ca C - N f0 (0 n ~ M N O H (0 ¢ 3 f (n w Y c ~ C w C f0 ~ (h 'O ~ Y y w ~ m cn a cn ~ ~ N N N N ~ N ~ N r_ y r_ N rr (~ ~+ N ` O ~+ N X c 0 c 0 c 0 c 0 w 0 0 ~ O op ap ~ o M ~ N O (D O ~ Y m a~ ~ ~ Q U U a> ~ c . a ~ CO M ~ N ~ ~ ti ~ m OT L ~ ~ U C Q m U m = U _ ' ~ ~ Q O M N M ~ M N N ~ ~ O LL N O N N ~ `L U U °' 3 ~ m a . ~ 0 O ~ ~ ui o ~n ~n Z ~ ~ ~' Y M ~ ~ s~ V ~ U ~ ~ ~~ O U f6 ~ (A ~ ~ `- .~ 0 ~ M ~ ~ Q Q ~ y O Z U w o ~ S E E o 'Z ~' +,,, N ~ N ~ IC Z N d Q N ~ ~ ~ Q N ~ ~ B O ~ ~ -p ' c •~ ~ °' m > > ~ C N a ~o • o ` - m ~ ~ o w a O r O _O tG N a a> C • ~ ~ Q O f0 ++ O F- tt - O e f6 N Q a> ~ C ~ ~ ~ ~ v o ~o 0 F- M O t0 'Q a> ca ~ . ~ ~ M ~ ~ fC O H O O ui h t6 d Q a> C ~ O ~ O © ~ (9 O H N '~ f/J y Y c 3 C w C ~ ~ a ~ ` d w m in a cn ~ ~ w ~ ~ ~ ~ ~ fU Ul N fA (A U) N X c c c c 0 0 0 0 0 0 CHARLOTTE DOUGLAS INTERNATIONAL AIRPORT STORM WATER MANAGEMENT PLAN OPERATION & MAINTENANCE PLAN for THIRD PARALLEL RUNWAY, TAXIWAYS AND WALLACE NEEL ROAD RELOCATION Prepared by Talbert Bright Inc. In association with HDR Engineering March 15, 2007 The following Operation & Maintenance Plan (OMP) has been prepared incompliance with NCDENR DWQ 401 permitting requirements for the construction and operation of the project entitled "Third Parallel Runway, Taxiways and Wallace Neel Road Relocation" located at Charlotte Douglas International Airport (CDIA), Charlotte, North Carolina. This project involves the construction of a new runway and parallel taxiway west of the existing terminal facility, and includes two proposed cross-connector taxiways, and the relocation of Wallace Neel Road. The OMP describes CDIA maintenance responsibilities for the monitoring, cleaning, and necessary maintenance of the following Best Management Practices (BMPs) for these new facilities: 1. Grassed Swales 2. Filter Strips 3. Manufactured BMPs 4. Extended Dry Detention Basins 5. Pavement Sweeper with Vacuum Third Parallel Runway, Taxiways and Wallace Neel Road Relocation SWMP O&M Plan 2 OPERATION AND MAINTENANCE AGREEMENT I acknowledge and agree by my signature below that I am responsible for the performance of the six maintenance procedures listed in this OMP. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print namn/e: T ~ ~'~-~ Title: ~'tVI~T~o~l ~-+2~-~TC~ Address: ~'a01 ~c>~-~ ~+~rv1wc;HAN- icwy_ t ~if,4.2~o-r~rE, ~JC 2~~~ Phone: (~7~y) 3~ ~ - Signature: ! Date: 3 lr7.O'7 D .. I, i , a Notary Public for the State of North Carolina, County of Mecklenburg, do hereby certify that / ~ ,~ 0/1./1 personally appeared before me this day of 1 , 2007, and acknowledge the due execution of the forgoing Operation & Maintenance requirements. Witness my hand and official seal, SEAL My commission expires ~ Third Parallel Runway, Taxiways and Wallace Neel Road Relocation SWMP O&M Plan 3 1.0 Grassed Swale 1.1 Description Grassed swales typically are used in residential and commercial developments as well as along highway medians as alternatives or enhancements to conventional storm sewers. Swales remove pollutants from stormwater by filtration through grasses and other vegetation, settling, and infiltration through soil. Grassed swales are occasionally enhanced with check dams to retain water and promote infiltration. 1.2 Monitoring The vegetation in the grassed Swale should be inspected at least twice per year. 1.3 Maintenance Maintenance of grassed swales involves grooming the vegetation and occasionally removing trash. Routine mowing is required for turf grasses. Grass shall be cut no lower than 5 inches. In addition, the grass should be allowed to grow to the maximum height consistent with the species and aesthetic requirements. The frequency of trash removal depends on the location and attractiveness of the Swale as a disposal site. Excessive sediment should not accumulate if erosion is controlled adequately upstream. However, if excessive siltation occurs, the sediment must be removed periodically (no less than once annually). Sediment that accumulates in the Swale may be prone to resuspension during large storm events and can kill the grass. Sediment should be removed when it reaches a depth of 4 inches or when it covers the grass. Additional annual maintenance activities are as follows: ^ Repair erosion and regrade the Swale to ensure that runoff flows evenly in a thin sheet through the Swale. ^ Revegetate the swale as needed to maintain a dense growth. 1.4 Schedule Activities Fre uenc Ins ect ve etation in assed Swale Bi-Annuall Remove debris As needed Remove sediment As needed, (annually or when it reaches a de th of 4 inches or covers the ass Re air erosion Annually Re ade and reve etate the Swale As needed Mow grassed Swale Routinely for turf asses to maintain hei ht Third Parallel Runway, Taxiways and Wallace Neel Road Relocation SWMP O&M Plan 4 2.0 Filter Strip 2.1 Description Filter strips are uniformly graded and densely vegetated sections of land, engineered and designed to treat runoff from and remove pollutants through vegetative filtering and infiltration. Any natural vegetated form, from grassy meadow to small forest, maybe adapted for use as a filter strip. However, the vegetation must have dense foliage and thick root mat to be effective. Filter strips are designed to accept runoff from overland sheet flow from upgradient development. The strips trap sediment and sediment-bound pollutants. Because they "disconnect" impervious surfaces from storm sewers and lined channels, filter strips reduce effective imperviousness and help reduce peak discharge rates by increasing travel time and by increasing abstractions from the total flow. Filter strips typically include some method of spreading the runoff as sheet flow. 2.2 Monitoring During the first 1 or 2 years after construction, filter strips should be inspected for proper distribution of flows and signs of erosion during and after major storm events. After the first 1 or 2 years, the strip may be inspected annually or biannually. If evidence of erosion exists, the eroded areas should be filled in and reseeded. The cause of the erosion should then be determined and, if possible, eliminated. 2.3 Maintenance With minimal maintenance, filter strips can be effective indefinitely. However, strips that are not maintained properly may quickly become nonfunctional. Maintenance involves routine activities such as mowing, trimming, and replanting when necessary. Strips that are used for sediment removal may require periodic regrading and reseeding of their upslope edge because deposited sediment can kill grass and change the elevation of the edge such that the stormwater no longer flows through the strip in thin sheets. Maintenance requirements are as follows: ^ Remove deposited sediment, especially from the upstream edge, to maintain original contours and grading. ^ Repair gullies and rills that form and regrade the filter strip to ensure that the runoff flows evenly in a thin sheet over the filter strip. ^ Reseed and regrade the filter strip to maintain a dense growth of vegetation, especially if the strip has been used for sediment control. ^ Mow filter strips vegetated with grasses and harvest the clippings two to three times a year to promote the growth of thick vegetation with optimum pollutant removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and maybe allowed to grow as tall as 12 inches depending on aesthetic requirements. ^ Keep the filter strip free of litter. ^ Evaluate the runoff from adjacent areas to determine if it is providing enough water and nutrients or if additional irrigation and fertilizer are needed. ^ Perform periodic aeration of the soil if excessive compaction is interfering with maintaining a good vegetative cover. ^ Test the soil pH and compare it to the recommended pH for the specific vegetation. Add lime if indicated. Third Parallel Runway, Taxiways and Wallace Neel Road Relocation SWMP O&M Plan 2.4 Schedule Activities Fre uenc Inspect filter strips and level spreaders For the first two years during and after major storm events After first two ears annuall or biannuall Remove de osited sediment Annuall , as needed Re air llies and rills that form As needed Re ade the filter stri As needed Reseed and re ade the filter stri As needed Mow filter stri s ve etated with asses Re ularl to maintain hei ht Harvest cli ins Two to three times er year Remove debris As needed Evaluate runoff from ad'acent areas As needed Perform eriodic aeration of the soil As needed Test the soil H As needed Third Parallel Runway, Taxiways and Wallace Neel Road Relocation SWMP O&M Plan 6 3.0 Manufactured BMP 3.1 Description Manufactured BMP systems are designed to remove sediments, oil and grease (O&G) and other hydrocarbons, trash and debris, and other floating substances from stormwater. A common application is in paved areas where motor vehicle fueling or maintenance is performed. These BMPs are flow-through devices with minimal storage capacity. These technologies are generally proprietary designs sold by the manufacturer as prefabricated units. Some of these technologies include vortex separation, screening, adsorbent filter media, and baffling chambers. 3.1 Monitoring Manufactured BMPs should be inspected regularly, initially after every storm and then at reduced frequency as specified by the manufacturer and depending on the characteristics of the drainage area. Inspections should occur more frequently during the fall and after severe storms, when debris is likely to be present. 3.3 Maintenance Manufactured BMPs should be cleaned frequently to remove sediment, accumulated O&G, floatables, and other pollutants. The manufacturer typically specifies the maintenance schedule. 3.4 Schedule Activities Fre uenc Inspect manufactured BMP Initially after every storm and then at reduced frequency as specified by the manufacturer, but no less than bi-annuall Clean and remove sediment/filter cartridges Annuall Third Parallel Runway, Taxiways and Wallace Neel Road Relocation SWMP O&M Plan 4.0 Extended Dry Detention Basins 4.1 Description As the name of this BMP implies, these basins are typically dry between storm events. To qualify as a BMP, dry basins should incorporate extended detention of runoff derived from small rainfall events. In dry ED basins, aloes-flow outlet slowly releases water retained below the primary outlet device over a period of days. This BMP can be applied in low-density residential, industrial, and commercial developments where sufficient space is available. The primary purpose of dry ED basins is to attenuate and delay stormwater runoff peaks. The dry ED basins for this project will include a sand filter bottom with a subsurface piping system for removal of the filtered water to enhance the pollution removal of the dry ED basin, and to prevent standing water (which is prohibited by FAA). 4.2 Monitoring The facility should be inspected annually to verify that the facility is operating as designed and to schedule any required maintenance. If possible, inspections should occur during wet weather to verify that the facility is maintaining desirable retention times. As a minimum, the following items should be included in the annual inspection: ^ Embankment settling, woody growth, animal burrowing, and signs of piping ^ Condition of grass cover on the embankment, basin floor, and perimeter of the basin ^ Riprap displacement or failure ^ Principal and emergency spillway to confirm that they meet design plans for operation ^ Outlet controls, debris racks ^ Outlet channel conditions ^ Safety features ^ Access for maintenance equipment ^ Clogging of the low-flow orifice and sub-drainage piping ^ Drainage of the low-flow channel ^ Sediment accumulation in the sand media 4.3 Maintenance Maintaining turf grass on the tops of berms and on the exterior slopes of embankments is advisable to facilitate access to the facility and inspection of the embankment. Any seedlings or planting should be removed at the earliest opportunity and the disturbed areas should be stabilized properly. Control of woody vegetation will require periodic mowing and a policy of not allowing plantings on these facilities. The facility should be managed with grass no shorter than 6 to 8 inches and be mowed at least twice annually. Root voids and animal burrows should be plugged with material similar to the surrounding materials, and capped just below grade with stone, concrete, or other material. If plugging the burrows does not discourage burrowing animals from returning, further measures should be taken to remove the animal population or to make critical areas of the facility unattractive to them. Dry ED basins should have enough volume to account for sediment accumulation over time. Trash and debris can accumulate quickly in dry ED basins, requiring frequent cleaning, at least Third Parallel Runway, Taxiways and Wallace Neel Road Relocation SWMP O&M Plan twice annually. The accumulated sediment, mud, sand, and debris must be cleaned out with earth- moving equipment and disposed of properly, on average, every 2 to 10 years or when the basin has lost approximately 20 percent of its capacity. Caution should be taken not to damage the sub- drainage system. Once these materials are removed, the disturbed areas should be stabilized and revegetated immediately; otherwise, sediment will move to downstream areas. Freshly seeded areas should be protected with an erosion mat that has been securely staked in place to prevent flotation. In many cases, sodding offers the best approach to stabilization after removal of sediment and debris. The sand filter bottom and sub-drainage piping system should be inspected bi-annually for uniform slope and depth conditions in the sand. The bottom of the basin must be accessible for maintenance. The access path should be a minimum of 10 feet wide, have a maximum slope of SH:1 V. Steeper slopes may result in rutting and require more access path maintenance. 4.3 Schedule Activities Fre uenc Inspect the dry ED basins Annually (once during rain event, once during d eriod) Maintain turf ass As needed Remove seedlin s or lantin As needed Mow Biannually (as a minimum) to maintain hei ht Un lu root voids and animal burrows As needed Remove debris Biannuall Remove sediment, mud, sand, and debris Every 2 to 10 years or when the basin has lost a roximately 20 ercent of its ca aci Stabilize and reve etate As needed Maintain access ath As needed Third Parallel Runway, Taxiways and Wallace Neel Road Relocation SWMP O&M Plan 9 5.0 Pavement Sweeper with Vacuum 5.1 Description Pavement sweeping and vacuuming includes use of self-propelled or walk-behind equipment to remove sediment from streets, roadways, and other pavements. Sweeping and vacuuming prevents sediment from the project site from entering storm drains or receiving waters. 5.4 Monitoring Regular inspection of the pavement is critical. Make sure that the sweeper does not sweep up anything hazardous, since it might cause damage to the machine.. Schedule sweeping immediately after special events like installation of lighting in pavement, and runway closures. Following grass cutting operations, the pavement should be inspected to determine if sweeping is necessary to remove errant clippings or sediment that may cause operational deficiencies. Ensure that debris from sweeper hoppers is collected and taken to a secure temporary storage area or directly to its permanent disposal site. Do not empty sweeper hoppers even temporarily onto areas near storm drains or surface water bodies or where wind or rain could re-entrain or scatter the debris. Avoid conducting sweeping operations during rainstorms. 5.3 Maintenance Inspect pavement prior to forecast of extended rain events, weekly during the rainy season, and at monthly intervals during the non-rainy season. More frequent removal, may be required in some jurisdictions, if considerable sediment/debris is observed during inspection. Be careful not to sweep up any unknown substance or any object that maybe potentially hazardous. Adjust brooms frequently; maximize efficiency of sweeping operations. After sweeping is finished, properly dispose of sweeper wastes at an approved dumpsite. 5.4 Schedule Activities Fre uenc Ins ect avement Monthl Swee avement Weekl Swee avement afters ecial events Prior to re-o enin of Runwa and Taxiwa s Inspect and Ad~ust brooms Quarterl Dispose of swee er waste After sweepin Third Parallel Runway, Taxiways and Wallace Neel Road Relocation SWMP O&M Plan