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HomeMy WebLinkAboutSW8031217_CURRENT PERMIT_20040302STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW ,(�1/3 7 DOC TYPE CURRENT PERMIT APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE ;2lpXkPA,�gL YYYYMMDD 0 �0� WAr�RQc co Michael F Easley, Governor William G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources > Alan W Klimek, P E ,Director p -C Division of Water Quality Coleen H Sullins, Deputy Director Division of Water Quality March 2, 2004 Mr Todd Saieed St Josephs Partners, LLC 3301 Benson Drive Raleigh, NC 27619 Subject Permit No SW8 031217 St Josephs Residential High Density Stormwater Project New Hanover County Dear Mr Saieed The Wilmington Regional Office received a complete Stormwater Management Permit Application for St Josephs Residential on February 27, 2004 Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H 1000 We are forwarding Permit No SW8 031217 dated March 2, 2004, for the construction of St Josephs Residential This permit shall be effective from the date of issuance until March 2, 2014, 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 thus permit This request must be in the form of a written petition, conforming to Chapter ISOB 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 Laurie Munn, or me at (910) 395-3900 Sincerely, Rick Shiver Water Quality Regional Supervisor RSS/ Ism S IWQSISTORMWATIPERMIT1031217 mar04 cc Phil Tripp, P E New Hanover County Building Inspections Beth E Wetherell, New Hanover County Engineering Division of Coastal Management Laurie Munn Wilmington Regional Office Central -Files N C Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Customer Service AA Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1 800 623-7748 NUENOR State Stormwater Management Systems Permit No SW8 031217 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 St Josephs Partners, LLC St Josephs Residential New Hanover County FOR THE construction, operation and maintenance of 3 sand filters in compliance with the provisions of 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 2, 2014, 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 on page 3 of this permit, the Project Data Sheet The stormwater control has been designed to handle the runoff from 97,700 square feet of impervious area The sand filters must be operated with a vegetated filter 3 The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per 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 drainage area of this project must be directed into the permitted stormwater control system A permit modification must be submitted and approved prior to the construction of additional built -upon area from outside of the approved drainage area F4 State Stormwater Management Systems Permit No SW8 031217 DIVISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Protect Name Permit Number Location Applicant Mailing Address Application Date Receiving Stream/River Basin Stream Index Number Classification of Water Body Drainage Area, acres Onsite, ftZ Offsite, fl Total Impervious Surfaces, R2 Pond Depth, feet TSS removal efficiency Bottom Elevation, FMSL Permitted Surface Area, ft Permitted Storage Volume, ft3 Top of Weir Elevation, FMSL Top of Sand elevation, FMSL Controlling Onfice St Josephs Residential SW8 031217 New Hanover County Mr Todd Saieed St Josephs Partners, LLC 3301 Benson Drive Raleigh, NC 27619 February 27, 2004 Carolina Beach Yacht Basin / Cape Fear CPF24 18-87-31 2 "SB" Sediment Chamber#1 Sand Chamber#1 19 82,764 none 55,446 15 85% (a 50' vegetated filter is required) 63 63 738 738 1107 1107 80 -- -- 78 6" � overflow pipe 3 State Stormwater Management Systems Permit No SW8 031217 DIVISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Sediment Chamber#2 Sand Chamber#2 Drainage Area, acres 082 Onsite, ft 35,719 Offsite, fl none Total Impervious Surfaces, ft2 26,272 Pond Depth, feet 15 TSS removal efficiency 85% (a 50' vegetated filter is required) Bottom Elevation, FMSL 63 63 Permitted Surface Area, ft2 330 330 Permitted Storage Volume, ft3 495 495 Top of Weir Elevation, FMSL 80 -- Top of Sand elevation, FMSL -- 78 Controlling Orifice 6" � overflow pipe Sediment Chamber#3 Sand Chamber#3 Drainage Area, acres 058 Onsite, ft2 25,265 Offsite, ft none Total Impervious Surfaces, ft2 Pond Depth, feet TSS removal efficiency Bottom Elevation, FMSL Permitted Surface Area, ft2 Permitted Storage Volume, ft3 Top of Weir Elevation, FMSL Top of Sand elevation, FMSL 15,982 15 85% (a 50' vegetated filter is required) 63 63 246 246 369 369 80 ' 78 Controlling Orifice 6" 0 overflow pipe 4 State Stormwater Management Systems Permit No SWS 031217 H. SCHEDULE OF COMPLIANCE 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 The permittee shall at all times 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 revegetation of slopes and the vegetated filter d Immediate repair of eroded areas e Maintenance of all slopes in accordance with approved plans and specifications f Debris removal and unclogging of outlet structure, onfice device, flow spreader, catch basins and piping g Access to the outlet structure must be available at all times 4 Records of maintenance activities must be kept and made available upon request to authonzed personnel of DWQ The records 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 voidable 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 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 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, 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 5 State Stormwater Management Systems Permit No SW8 031217 9 The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction If the proposed BUA exceeds the amount permitted under this permit, a modification to the permit must be submitted and approved prior to construction 10 A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction 11 At least 30 days prior to the sale or lease of any portion of the property, the permittee shall notify DWQ and provide the name, mailing address and phone number of the purchaser or leasee An access/maintenance easement to the stormwater facilities shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale or lease of any portion of the property 12 The permittee must maintain compliance with the proposed built -upon area and ensure that the runoff from all the built -upon is directed into the permitted system 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 14 The permittee must maintain the current permitted drainage area No additional runoff from outside of the permitted drainage area boundary may enter the permitted stormwater facilities without first applying for and receiving a permit modification 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 formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate The approval of this request will be considered on its ments and may or may not be approved The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request 2 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 3 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) which have lunsdiction 4 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 5 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 6 The permit may be modified, revoked and reissued or terminated for cause The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition C.1 State Stormwater Management Systems Permit No SW8 031217 7 Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planrung and Design Manual 8 Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit 9 The permzttee shall notify the Division any name, ownership or mailing address changes within 30 days Permit issued this the 2nd day of March 2004 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION AlKlimek, P E- Director Division of Water Quality By Authority of the Environmental Management Commission 7 State Stormwater Management Systems Permit No SW8 031217 St Josephs Residential Stormwater Permit No SW8 031217 New Hanover County Designer's Certification 1, as a duly registered in the State of North Carolina, having been authorized to observe (penodically/weekly/full time) the construction of the project, (Project) 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 SEAL Signature Registration Number Date State Stormwater Management Systems Permit No SW8 031217 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 The outlet/bypass structure elevations are per the approved plan 5 The outlet structure is located per the approved plans 6 Trash rack is provided on the outlet/bypass structure 7 All slopes are grassed with permanent vegetation 8 Vegetated slopes are no steeper than 3 1 9 The inlets are located per the approved plans and do not cause short-circuiting of the system 10 The permitted amounts of surface area and/or volume have been provided 11 Required drawdown devices are correctly sized per the approved plans 12 All required design depths are provided 13 All required parts of the system are provided, such as a vegetated shelf, and a forebay 14 The overall dimensions of the system, as shown on the approved plans, are provided cc NCDENR-DWQ Regional Office New Hanover County Building Inspections 0 State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original I. GENERAL INFORMATION I Applicants name (specify the name of the corporation, individual, etc who owns the project) St Josephs Partners LLC 2 Print Owner/Signing Official's name and title (person legally responsible for facility and compliance) Todd Saleed Member Manager ' 3 Mailing Address for person listed in item 2 above 3301 Benson Drive City Raleigh State NC Zip 27619 Telephone Number 919-876-4772 4 Project Name (subdivision, facility, or establishment name — should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc ) St Josephs Residential 5 Location of Project (street address) 700 St Joseph's Street City Carolina Beach County New Hanover 6 Directions to project (from nearest major intersection) 0 6 miles south of the intersection of US Hwy 421 and Hwy_ 132 7 Latitude N 340 02' 30" Longitude W 770 53' 00" of project 8 Contact person who can answer questions about the project Name Phillip TrippTelephone Number 910-763-5100 If PERMIT INFORMATION• I Specify whether project is (check one) X New Renewal Modification Form SWU-101 Version 3 99 Page 1 of 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 issue date (if known) 3 Specify the type of project (check one) Low Density X High Density Redevelop General Permit Other 4 Additional Project Requirements (check applicable blanks) CAMA Major X Sedimentation/Erosion Control 404//401 Permit NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748 III PROJECT INFORMATION 1 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 sand filters 2 Stormwater runoff from this project drains to the Cape Fear River basin 3 Total Project Area 3 99 acres 5 How many drainage basins does the project have? I 4 Project Built Upon Area 544 % 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 } E s ! & Y4 1 ll P� 9 t BasinInforirnatao>rac�'�)k�� Eit,F f [i f 3^T&lx < !e Ecpg¢agtisn3r rf,isgr a fa Li ,i f E�i 2 ii{i ty3i4t -t { t! k tr i e136 xpvPi�t�FPtey t itiYf6$dv&%feefif } �iDramage)Ba'sini��� a EZ 1 4 ` �1Drairiage3Basiii2 E�Et rE,,;�i if3 Y tF s#daJ.te'ift�6'.EEi�t € fey ¢ N. f; 3t qzi 3 3 3 dg m 11f vl 1 33 EfA DrainageBasin�3; ! E E lsgi`i xs St F t- EEtq ! E Ef ik i 9et Y 1 di Receiving Stream Name Carolina Beach Yacht Basin Carolina Beach Yacht Basin Carolina Beach Yacht Basin Receiving Stream Gass SB SB SB Drainage Basin Area 1 9 ac 0 82 ac 0 58 ac Existing Impervious * Area - - - Proposed Impervious * Area 1 27 ac 0 60 ac 0 37 ac % Impervious* Area (total) 67% 74% 63% �Irripervious *ISurface,ii5 real l 1 f II PlPrF(l(i[91h[f �R#Yl.�l rtHkt �ei ," ;, s{,i=) rainageiBasi'rie€{plEEe1�lE, ,�,oj3p ygpfr�jE i� i .PIpiBP 6dt111[dak. �. AlaS'SiA6Yllil iEPofk i »'8�£F &f; pt; I , =I!;'' ��f>YE;aDrain`agelBasinl2,Et,E,3i`io- `#!�# ii: [ & �� 1�` ➢66k1{6i11 16as a xEi EF 1{,t{�lj }j} f! '" ; i;,`�;�'Vrainage Basin,�3E � � E 1p3 as d 1 J C d3Y 1 (v i i@ v I {t On -site Buildings 24,459 sf 13,060 sf 1,515 sf On -site Streets On -site Parking 24,510 sf 12,855 sf 9,748 sf On -site Sidewalks 2,155 sf 357 sf 1,392 sf Other on -site pool deck 4,322 sf - 3,327 sf Off -site - - - Total E=55,446 sf E=26,272 sf E=15,982 sf * Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas sidewalks, gravel areas, etc Form SWU-101 Version 3 99 page 2 of 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 stormwater management permit number as issued by the Division of Water Quality These covenants may not be changed or deleted without the consent of the State 2 No more than square feet of any lot shall be covered by structures of impervious materials Impervious materials include asphalt, gravel, concrete, brick stone, slate or similar material but do not include wood decking or the water surface of swimming pools 3 Swales shall not be filled in, piped or altered except as necessary to provide driveway crossings 4 Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to construction S All permitted runofffrom outparcels or future development shall be directed into the permitted stormwater control system These connections to the stormwater 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 include 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 required 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 state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project Contact the Stormwater and General Permits Unit at (910) 733-5083 for the status and availability of these forms Form SWU-102 Form SWU-103 Form SWU-104 Form SWU-105 Form SWU-106 Form SWU-107 Form SWU-108 Form SWU-109 Wet Detention Basin Supplement Infiltration Basin Supplement Low Density Supplement Curb Outlet System Supplement Off -Site System Supplement Underground Infiltration Trench Supplement Neuse River Basin Supplement Innovative Best Management Practice Supplement Form SWU-101 Version 3 99 Page 3 of 4 Oct 27 03 04:38p Phillip Tripp 910-763-5631 p•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 apphcation package should be submitted to the appropriate DWQ Regional Office. 1 Please indicate that you have provided the following required information by initialing in the space provided next to each item Applicant's Initials • Original and one copy of the Stormwater Management Permit Application Form • One copy of the applicable Supplement Form(s) for each BMP • Permit application processing fee of $420 (payable to NCDENR) • Detailed narrative description of stormwater treatment/management • Two copies of plans and specifications, including - DevelopmentlPro)ect name - Engineer and firth - Legend - North arrow - Scale - Revision number and 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 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 authority to another individual or firm so that they may provide information on your behalf, please complete this section Designated agent (individual or fiTM) Tri incerin P C Mailing Address _ 419` Chestnut Street City ,__WilmLgton .. State NC Zip 2 401 Phone _(910) 763-5100 _ Fax _ (101.76 -5631 _ VIIL APPLICANT'S CERTIFICATION 1, (print or type name of person listed in General Information, item 2) Lodd Saieed , certify that the information included on this permit 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 a record J, an the proposed project complies with the requirements of 15A NCAC 2H 1000 • / ✓' Signature qr Date _ ! r $3 Form SWU-101 Version 3 99 Page 4 of State Stormwater Permit No SLO V_a112-17 Applies to System No SAND FILTER OPERATION AND MAINTENANCE PLAN FOR DRAINAGE AREA 2 Regular maintenance is essential to the long-term performance and durability of the sandfilter, as it is with all stormwater BMP's Depending on the types of activities occurring within the drainage area, most sand filters will show a decreased capacity for filtration after a few years At least once a year, each filter must be inspected after a 1" design storm event to determine if the filter bed is passing the runoff within 24 hours 2 If the filter is not passing the runoff completely within 24 hours, the first 2"-3" of discolored sand must be removed and replaced with new sand The removed sand must be dewatered and disposed of properly 3 At the same time that maintenance is performed on the sand chamber, the sediment chamber should be pumped and cleaned The removed sediment should be dewatered and disposed of properly 4 At least once every quarter, check that the orifice is clear 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 and prior to any changes to the system or the responsible party Print name and title Todd Saieed, Member Manager Address 3301 Benson Drive Raleigh, NC 27619 Phone 91 -8 Fax 919-872-7641 Signature Date Note The legally responsible party should not be a homeowners association unless more than 50% of the lots,ppve been sold and a resident of the subdivision has been named the president I, 1 MUYWJ), a Notary Public for the State of orth Carolina , County/of do hereby certify that Todd S i ed personally appeared before me this the day of 12004 , and acknowledge the due execution of a foregoing sand filter maAenance requirements Witness my hand and official seal, _aUMW'h' SEAL ,rig E�r My commission expires y� Co r f ' State Stormwater Permit No SW 1Z Applies to System No SAND FILTER OPERATION AND MAINTENANCE PLAN FOR DRAINAGE AREA 3 Regular maintenance is essential to the long-term performance and durability of the sandfilter, as it is with all stormwater BMP's Depending on the types of activities occurring within the drainage area, most sand filters will show a decreased capacity for filtration after a few years At least once a year, each filter must be inspected after a 1" design storm event to determine if the filter bed is passing the runoff within 24 hours 2 If the filter is not passing the runoff completely within 24 hours, the first 2"-3" of discolored sand must be removed and replaced with new sand The removed sand must be dewatered and disposed of properly 3 At the same time that maintenance is performed on the sand chamber, the sediment chamber should be pumped and cleaned The removed sediment should be dewatered and disposed of properly 4 At least once every quarter, check that the orifice is clear 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 and prior to any changes to the system or the responsible party Print name and title _Todd Saieed, Member Manager Address 3301 Benson Drive Raley h NC 27619 Phone 9 - 4 Fax 919-872-7641 Signature Date Note The legally responsible party should not be a homeowners association unless more than 50% of the lots live been sold and a resident of the subdivision has been named the president 1, , a Notary Public for the State of North Carolina , County of aA do hereby certify that Todd Sai ed personally appeared before me this the day of , 2004 , and acknowledge the due execution grf\the foregoing sand filter maintoance requirements Witness my hand and official seal, SEAL 4 My commission expires . t y 1 i 7 M4