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Home My WebLink AboutRC 20161207000507 e + Return Address: City Clerk's Office City of Renton 1055 S Grady Way Renton, WA 98057 201fi1207000507 CITY OF RENTON COV 88.00 PAGE-001 OF 028 12/07/2018 10:53 KING COUNTY, WA DECLARATION OF COVENANT FOR INSPECTION AND MAINTENANCE OF STORMWATER FACILITIES AND BMPS Grantor: 1KEA Property Inc. Grantee: City of Renton Legal Description: LOTS B AND C, CITY OF RENTON SHORT PLAT NUMBER LUA99-103-SHPL, RECORDED UNDER RECORDING NUMBER 20000228900001, IN KING COUNTY, WASHINGTON; TOGETHER WITH NON-EXCLUSIVE EASEMENTS FOR VEHICULAR ACCESS, INGRESS AND EGRESS AS CREATED AND MORE PARTICULARLY DESCRIBED IN RECIPROCAL EASEMENT AGREEMENTS RECORDED UNDER RECORDING NUMBERS 20000228000507 AND 20000228000508. Assessor's Tax ParcellD#: 362304-9113 AND 312305-9169 IN CONSIDERATION of the approved City of Renton utility permit for application file No. LUA/SWP 14-000951 relating to the real properly ("Property") described above, the Grantor(s), the owner(s) in fee of that Property, hereby covenants(covenant) with the City of Renton, a political subdivision of the state of Washington, that he/she(they) will observe, consent to, and abide by the conditions and obligations set forth and described in Paragraphs 1 through 10 below with regard to the Property, and hereby grants(grant) an easement as described in Paragraphs 2 and 3. Grantor(s) hereby grants(grant), covenants(covenant), and agrees(agree)as follows: 1. The Grantor(s) or his/her(their) successors in interest and assigns ("Owners of the described property") shall at their own cost, operate, maintain, and keep in good repair, the Property's stormwater facilities and/or best management practices ("BMPs") constructed as required in the approved construction plans and specifications IKEA Redevelopment on file with the City of Renton and submitted to the City of Renton for the review and approval of permit(s) U15001266. The property's stormwater facilities and/or best management practices ('BMPs") are shown and/or listed on Exhibit A. The property's stormwater facilities and/or BMPs shall be maintained in compliance with the operation and maintenance schedule included and attached herein as E�ibit B. Stormwater facilities include pipes, swales, tanks, vaults, ponds, and other engineered structures designed to manage and/or treat stormwater on the Property. Stormwater BMPs include dispersion and infiltration devices, native vegetated areas, permeable pavements, vegetated roofs, rainwater harvesting systems, reduced Page 1 of 3 Form Approved by City Attorney 10/2013 impervious surface coverage, and other measures designed to reduce the amount of stormwater runoff on the Property. 2. City of Renton shall have the right to ingress and egress over those portions of the Property necessary to perform inspections of the stormwater facilities and BMPs and conduct maintenance activities specified in this Declaration of Covenant and in accordance with RMC 4-6-030. 3. If City of Renton determines that maintenance or repair work is required to be done to any of the stormwater facilities or BMPs, City of Renton shall give notice of the specific maintenance and/or repair work required pursuant to RMC 4-6-030. The City shall also set a reasonable time in which such work is to be completed by the Owners. lf the above required maintenance or repair is not completed within the time set by the City, the City may perform the required maintenance or repair, and hereby is given access to the Property, subject to the exclusion in Paragraph 2 above, for such purposes. Written notice will be sent to the Owners stating the City's intention to perform such work. This work will not commence until at least seven (7) days after such notice is mailed. lf, within the sole discretion of the City, there exists an imminent or present danger, the seven (7) day notice period will be waived and maintenance and/or repair work will begin immediately. 4. If at any time the City of Renton reasonably determines that a stormwater facility or BMP on the Property creates any of the hazardous conditions listed in RMC 4-4-060 G or relevant municipal successor's codes as applicable and herein incorporated by reference, the City may take measures specified therein. 5. The Owners shall assume all responsibility for the cost of any maintenance or repair work completed by the City as described in Paragraph 3 or any measures taken by the City to address hazardous conditions as described in Paragraph 4. Such responsibility shall include reimbursement to the City within thirty (30) days of the receipt of the invoice for any such work performed. Overdue payments will require payment of interest at the current legal rate as liquidated damages. If legal action ensues,the prevailing party is entitled to recover reasonable litigation costs and attorney's fees. 6. The Owners are hereby required to obtain written approval from City of Renton prior to filling, piping, cutting, or removing vegetation (except in routine landscape maintenance) in open vegetated stormwater facilities (such as swales, channels, ditches, ponds, etc.), or performing any alterations or modifications to the stormwater facilities and BMPs referenced in this Declaration of Covenant. 7. Any notice or consent required to be given or otherwise provided for by the provisions of this Agreement shall be effective upon personal delivery, or three (3) days after mailing by Certified Mail, return receipt requested. 8. With regard to the matters addressed herein, this agreement constitutes the entire agreement between the parties, and supersedes all prior discussions, negotiations, and all agreements whatsoever whether oral or written. 9. This Declaration of Covenant is intended to protect the value and desirability of the real property described above, and shall inure to the benefit of all the citizens of the City of Renton and its successors and assigns. This Declaration of Covenant shall run with the land and be binding upon Grantor(s), and Grantor's(s') successors in interest, and assigns. Page 2 of 3 10. This Declaration of Covenant may be terminated by execution of a written agreement by the Owners and the City that is recorded by King County in its real property records. IN WIT'NESS WHEREOF,this Declaration of Covenant for the Inspection and Maintenance of Stormwater Facilities and BMPs is executed this 17th day of September, 2015. GRANTOR: IKEA PROPERTY, INC., A Delaware co ratio B • Name: ��ys9/�G�Ij G" �C�j� Its: !�P" ; By: � Name: w Its: pN�,�`l.� Acknowledgements Commonwealth of Pennsylvania County of Montgomery , On this,the�day of :.��1�� , 2015, before me a notary public,the undersigne o�icer, personally ap eared Notary Seal must be within box Ci�ct/� I�S �1� d r� ( �'�� p tPs�dc�,� �.,tr�G�t fi'��1�1 2 �-C�i',.l S!�{P I�r�k nown to me(or COMMONWEALTH OF PENNSYLVANIA satisfactory p" ed)to be the person whose name is subscribed to the NOTARIAL SEAL within instrument, and acknowledged that he executed the same for Maya Madison, Notary PubllC Plymouth Twp., Montyomery County the purposes therein contained. My Commission Expires Aug. 6, 2019 MEMBER, ENNSYLVANIA A IAT10N F N � � In witness hereof, I hereunto set my hand and official seal. Notary Public y / '��-� Notary(Print) , lJ My appointment expir s: L�G U S-f"lr�, .��l� Dated: q��g��< � Page 3 of 3 - - EXHIBIT A SW 41ST ST 1�'15�� ` S88°37'04"E_ 1339.55' - - -- - - ---__ _ _ i --.—_ — i � STORM WATER � � WENAULT — I WATER QUALITY , . � m TREATMENT BMP Y U �`_� ^ _ +_ _ U ! i d � � r- � � �- � � � � � STORM PIPE AND CATCH ' � � �-- o � BASIN COLLECTION W � o FACILITIES (TYPICAL) ` '' W ° � o� _� �. cp = E w ��4�� Q i � : �i � � � � � �'�4 ��1 p��51�� e �_ � , �- � N � N,��' ��o��3�� ; ' ; � W � z �0�� c ' � � d '' � ! i' j� m � � N = i � , x � ;; w STORM WATER FILTERRA ` � z � m �-� — MEDIA FILTER VAULT � I ; WATER QUALITY ��i a� ° - TREATMENT � ` I � ' r axi ' / --__..___�_�__ ------ - —.- �° ..�___—.._».�._�._ . M � ; - _ - " " _ _ _ , , <p � � ' % y O 1 ` � � —, _ . G��.42� , � % - --- - - -___ � a _ SW 43RD - - - - - - � � SCALE JOB NUMBER HORIZONTAL 1"=150' VERTICAL N/A 16 8 3 6 GF1qV 18215 72ND AVENUE SOUTH �KEA - RENTON, WA � t9' KENT, WA 98032 �P � �425325,-s2z� STORM WATER a � 425 251-8782 FAX FACILITES AND BMP'S PAGE � CIVIL ENGINEERING, LAND �r�^'GEIdG�� ENVIRONMENTA v EiRVICES EXHIBIT 4 of LV DESIGNED DRAWN CFB CHECKED JSG APPROVED JSG DATE 08 21 15 EXHIBITA - --- S W 41 S T S T p=8g°41 '36" R=55.00' L=86.10' — �_ - - �_ -- _ . _ _ �_ -- --- ------ ----- � - 1'm150' i 7 � - ---- 1 — — _ , ` ------------ . , , � , - �' �; � �� ' � , -- - . � �� +� � ' _� � � _ � , - i � � I � �� i ' ' � I • .. �_l _� .�_-�� C�._, �--_�, �� I �� f� ,� ,. 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E -� --i I___ r------r!-- --r� � � �-_� c-� O ...� � u U � � � � � y � o � �I � � ,, STORM WATER WETPOND - ( � �, N y WATER QUALITY TREATMENT BMP � � � _ z � STORM PIPE AND CATCH BASIN `�-�' �-� � x COLLECTION FACILITIES (TYPICAL) �' � � m � � '� ;+ u , � � � � ag� - _ o I � r, ��04��,p�� , - -- �--- � i ��OG� ��4� iG��,��`' ' ' a � � � -� '� 'I �S�GJ��0000`l3`�t��'I.��i i i i i / � � �' " �' � ' � � � � �' � __� c=� �-� � �o ., f�� `� � � 4 / QZ � / 25°05'18"W 98.3�' °' _, �,Jt_____-_,:L_��U=-�� _ t�:L___'___ ____-' O ' �� .�.�� . � � N88°37'04"W 1360.25' _ � SW 43RD ST � � SCALE.• JOB NUMBER HORIZONTAL 1"=150' VERTICAL N/A 16 8 3 6 GFIqV 18215 72ND AVENUE SOUTH �KEA - RENTON, WA � t�' KENT, WA 98032 mP �`y (425�25,-s222 STORM WATER $ � (425 251-8782 FAX FACILITES AND BMP'S PAGE � CIVIL ENGINEERING, LAND �n�ENG�� ENVRONM�E TAL EIRVICES EXHIBIT `5 of LV DESIGNED DRAWN CFB CHECKED JSG APPROVED JSG DATE 08 0 15 EXHIBIT B Operations and Maintenance Manual NO. 5 - CATCH BASINS AND MANHOLES Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Structure Sediment Sediment exceeds 60%of the depth from the Sump of catch basin contains no bottom of the catch basin to the invert of the sediment. lowest pipe into or out of the catch basin or is within 6 inches of the invert of the lowest pipe into or out of the catch basin. Trash and debris Trash or debris of more than Yz cubic foot which No Trash or debris blocking or is located immediately in front of the catch basin potentially blocking entrance to opening or is blocking capacity of the catch basin catch basin. by more than 10%. Trash or debris in the catch basin that exceeds No trash or debris in the catch �/3 the depth from the bottom of basin to invert basin. the lowest pipe into or out of the basin. Dead animals or vegetation that could generate No dead animais or vegetation odors that could cause complaints or dangerous present within catch basin. gases(e.g.,methane). Deposits of garbage exceeding 1 cubic foot in No condition present which would volume. attract or support the breeding of insects or rodents. Damage to frame Corner of frame extends more than'/.inch past Frame is even with curb. and/or top slab curb face into the street(If applicable). Top slab has holes larger than 2 square inches Top slab is free of holes and cracks. or cracks wider than Y+inch. Frame not sitting flush on top slab,i.e., Frame is sitting flush on top slab. separation of more than'/,inch of the frame from the top slab. Cracks in walis or Cracks wider than Yz inch and longer than 3 feet, Catch basin is sealed and is bottom any evidence of soil particles entering catch structurally sound. basin through cracks,or maintenance person judges that catch basin is unsound. Cracks wider than Y�inch and longer than 1 foot No cracks more than�/a inch wide at at the joint of any inleUoutlet pipe or any the joint of inleUoutlet pipe. evidence of soil particles entering catch basin through cracks. Settlement/ Catch basin has settled more than 1 inch or has Basin replaced or repaired to design misalignment rotated more than 2 inches out of alignment. standards. Damaged pipe joints Cracks wider than Yz-inch at the joint of the No cracks more than Y.-inch wide at inleUoutlet pipes or any evidence of soil entering the joint of inleUoutlet pipes. the catch basin at the joint of the inleVoutlet pipes. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oii,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil fiim. InIeUOutlet Pipe Sediment Sediment filling 20%or more of the pipe. InleUoutlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inleVoutlet No trash or debris in pipes. pipes(includes floatables and non-floatables). Damaged Cracks wider than'/rinch at the joint of the No cracks more than Y,-inch wide at inleUoutlet pipes or any evidence of soil entering the joint of the inleUoutlet pipe. at the joints of the inleUoutlet pipes. 2016 Surface Water Design Manual—Appendix A 4/24/2016 A-9 NO. 5 - CATCH BASINS AND MANHOLES Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Metal Grates Unsafe grate opening Grate with opening wider than�/8 inch. Grate opening meets design (Catch Basins) standards. Trash and debris Trash and debris that is biocking more than 20% Grate free of trash and debris. of grate surface. footnote to guidelines for disposal Damaged or missing Grate missing or broken member(s)of the grate. Grate is in place and meets design Any open structure requires urgent standards. maintenance. Manhole Cover/Lid Cover/lid not in place Cover/lid is missing or only partially in piace. Cover/lid protects opening to Any open structure requires urgent structure. maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. Not Working maintenance person with proper tools.Bolts cannot be seated. Self-locking cover/lid does not work. Cover/lid di�cult to One maintenance person cannot remove Cover/lid can be removed and Remove coverllid after applying 80 Ibs.of lift. reinstalled by one maintenance person. 4/24/2016 2016 Surface Water Design Manual—Appendix A A-10 NO. 6 - CONVEYANCE PIPES AND DITCHES Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Pipes Sediment&debris Accumulated sediment or debris that exceeds Water flows freely through pipes. accumuiation 20%of the diameter of the pipe. Vegetation/roots Vegetation/roots that reduce free movement of Water flows freely through pipes. water through pipes. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Damage to protective Protective coating is damaged;rust or corrosion Pipe repaired or repiaced. coating or corrosion is weakening the structural integrity of any part of pipe. Damaged Any dent that decreases the cross section area Pipe repaired or replaced. of pipe by more than 20%or is determined to have weakened structural integrity of the pipe. Ditches Trash and debris Trash and debris exceeds 1 cubic foot per 1,000 Trash and debris cleared from square feet of ditch and slopes. ditches. Sediment Accumulated sediment that exceeds 20%of the Ditch cleaned/flushed of all accumulation design depth. sediment and debris so that it matches design. Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation constitute a hazard to County personnel or the removed according to applicable public. regulations. No danger of noxious vegetation where County personnel or the public might normally be. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Vegetation Vegetation that reduces free movement of water Water flows freely through ditches. through ditches. Erosion damage to Any erosion observed on a ditch slope. Slopes are not eroding. slopes Rock lining out of One layer or less of rock exists above native soil Replace rocks to design standards. place or missing(If area 5 square feet or more,any exposed native Applicable) soil. 2016 Surface Water Design Manual—Appendix A 4/24/2016 A-11 NO. 8 - ENERGY DISSIPATERS Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is PerFormed. Site Trash and debris Trash and/or debris accumulation. Dissipater clear of trash and/or debris. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Rock Pad Missing or moved Only one layer of rock exists above native soil in Rock pad prevents erosion. Rock area five square feet or larger or any exposure of native soil. Dispersion Trench Pipe plugged with Accumulated sediment that exceeds 20%of the Pipe cleaned/flushed so that it sediment design depth. matches design. Not discharging water Visual evidence of water discharging at Water discharges from feature by properly concentrated points along trench(normal sheet flow. condition is a"sheet flo�n1'of water along trench). Perforations plugged. Over 1/4 of perforations in pipe are plugged with Perforations freely discharge flow. debris or sediment. Water flows out top of Water flows out of distributor catch basin during No flow discharges from distributor "distributor�catch any storm less than the design storm. catch basin. basin. Receiving area over- Water in receiving area is causing or has No danger of landslides. saturated potential of causing landslide problems. Gabions Damaged mesh Mesh of gabion broken,twisted or deformed so Mesh is intact,no rock missing. structure is weakened or rock may fall out. Corrosion Gabion mesh shows corrosion through more All gabion mesh capable of than Y,of its gage. containing rock and retaining designed form. Collapsed or Gabion basket shape deformed due to any All gabion baskets intact,structure deformed baskets cause. stands as designed. Missing rock Any rock missing that could cause gabion to No rock missing. loose structural integrity. Manhole/Chamber Worn or damaged Structure dissipating flow deteriorates to Y�or Structure is in no danger of failing. post,baffles or side of original size or any concentrated worn spot chamber exceeding one square foot which would make structure unsound. Damage to wall, Cracks wider than Yz-inch or any evidence of soil Manhole/chamber is sealed and frame,bottom,and/or entering the structure through cracks,or structurally sound. top slab maintenance inspection personnel determines that the structure is not structurally sound. Damaged pipe joints Cracks wider than Yrinch at the joint of the No soil or water enters and no water inleUoutlet pipes or any evidence of soil entering discharges at the joint of inleUoutlet the structure at the joint of the inlet/outlet pipes. PiPes. 2016 Surface Water Design Manual—Appendix A 4/24/2016 A-13 NO. 9 - FENCING Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Erosion or holes Erosion or holes more than 4 inches high and 12- No access under the fence. under fence 18 inches wide permitting access through an opening under a fence. Wood Posts,Boards Missing or damaged Missing or broken boards,post out of plumb by No gaps on fence due to missing or and Cross Members parts more than 6 inches or cross members broken broken boards,post plumb to within 1Yz inches,cross members sound. Weakened by rotting Any part showing structural deterioration due to All parts of fence are structurally or insects rotting or insect damage sound. Damaged or failed Concrete or metal attachments deteriorated or Post foundation capable of post foundation unable to support posts. supporting posts even in strong wind. Metal Posts,Rails Damaged parts Post out of plumb more than 6 inches. Post plumb to within 1Y�inches. and Fabric Top rails bent more than 6 inches. Top rail free of bends greater than 1 inch. Any part of fence(including post,top rails,and Fence is aligned and meets design fabric)more than 1 foot out of design alignment. standards. Missing or loose tension wire. Tension wire in place and holding fabric. Deteriorated paint or Part or parts that have a rusting or scaling Structurally adequate posts or parts protective coating condition that has affected structural adequacy. with a uniform protective coating. Openings in fabric Openings in fabric are such that an 8-inch Fabric mesh openings within 50%of diameter ball could fit through. grid size. 4/24/2016 2016 Surface Water Design Manual—Appendix A A-14 NO. 10 - GATES/BOLLARDS/ACCESS BARRIERS Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Chain Link Fencing Damaged or missing Missing gate. Gates in place. Gate members Broken or missing hinges such that gate cannot Hinges intact and lubed.Gate is be easily opened and closed by a maintenance working freely. person. Gate is out of plumb more than 6 inches and Gate is aligned and vertical. more than 1 foot out of design alignment. Missing stretcher bar,stretcher bands,and ties. Stretcher bar,bands,and ties in place. Locking mechanism Locking device missing,no-functioning or does Locking mechanism prevents does not lock gate not link to all parts. opening of gate. Openings in fabric Openings in fabric are such that an 8-inch Fabric mesh openings within 50%of diameter ball could fit through. grid size. Bar Gate Damaged or missing Cross bar does not swing open or closed,is Cross bar swings fully open and cross bar missing or is bent to where it does not prevent closed and prevents vehicle access. vehicle access. Locking mechanism Locking device missing,no-functioning or does Locking mechanism prevents does not lock gate not link to all parts. opening of gate. Support post Support post does not hold cross bar up. Cross bar held up preventing vehicle damaged access into facility. Bollards Damaged or missing Bollard broken,missing,does not fit into support No access for motorized vehicles to hole or hinge broken or missing. get into facility. Does not lock Locking assembly or lock missing or cannot be No access for motorized vehicles to attached to lock bollard in place. get into facility. Boulders Dislodged Boulders not located to prevent motorized No access for motorized vehicles to vehicle access. get into facility. Circumvented Motorized vehicles going around or between No access for motorized vehicles to boulders. get into facility. 2016 Surface Water Design Manual—Appendix A 4/24/2016 A-15 NO. 11 - GROUNDS (LANDSCAPING) Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Trash or litter Any trash and debris which exceed 1 cubic foot Trash and debris cleared from site. per 1,000 square feet(this is about equal to the amount of trash it would take to fill up one standard size office garbage can). In general, there should be no visual evidence of dumping. Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation constitute a hazard to County personnel or the removed according to applicab�e public. regulations. No danger of noxious vegetation where County personnel or the public might normally be. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Grass/groundcover Grass or groundcover exceeds 18 inches in Grass or groundcover mowed to a height. height no greater than 6 inches. Trees and Shrubs Hazard Any tree or limb of a tree identified as having a No hazard trees in facility. potential to fall and cause property damage or threaten human life. A hazard tree identified by a quali�ed arborist must be removed as soon as possible. Damaged Limbs or parts of trees or shrubs that are split or Trees and shrubs with less than 5% broken which affect more than 25%of the total of total foliage with split or broken foliage of the tree or shrub. limbs. Trees or shrubs that have been blown down or No blown down vegetation or knocked over. knocked over vegetation. Trees or shrubs free of injury. Trees or shrubs which are not adequately Tree or shrub in place and supported or are leaning over,causing exposure adequately supported;dead or of the roots. diseased trees removed. 4/24/2016 2016 Surface Water Design Manual—Appendix A A-16 NO. 12 - ACCESS ROADS Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Pertormed Site Trash and debris Trash and debris exceeds 1 cubic foot per 1,000 Roadway drivable by maintenance square feet(i.e.,trash and debris would fill up vehicles. one standards size garbage can). Debris which could damage vehicle tires or Roadway drivable by maintenance prohibit use of road. vehicles. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Blocked roadway Any obstruction which reduces clearance above Roadway overhead clear to 14 feet road surface to less than 14 feet. high. Any obstruction restricting the access to a 10-to At least 12-foot of width on access 12 foot width for a distance of more than 12 feet road. or any point restricting access to less than a 10 foot width. Road Surface Erosion,settlement, Any surface defect which hinders or prevents Road drivabie by maintenance potholes,soft spots, maintenance access. vehicles. ruts Vegetation on road Trees or other vegetation prevent access to Maintenance vehicles can access surface facility by maintenance vehicles. facility. Shoulders and Erosion Erosion within 1 foot of the roadway more than 8 Shoulder free of erosion and Ditches inches wide and 6 inches deep. matching the surrounding road. Weeds and brush Weeds and brush exceed 18 inches in height or Weeds a�d brush cut to 2 inches in hinder maintenance access. height or cleared in such a way as to allow maintenance access. Modular Grid Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of Pavement pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Damaged or missing Access surface compacted because of broken Access road surtace restored so on missing modular block. road infiltrates. 2016 Surface Water Design Manual—Appendix A 4/24/2016 A-17 NO. 16 - WETPOND Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance Is Performed Site Trash and debris Any trash and debris accumulated on the Wetpond site free of any trash or wetpond site. debris. Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation constitute a hazard to County personnel or the removed according to applicable public. regulations. No danger of noxious vegetation where County personnel or the public might normally be. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Grass/groundcover Grass or groundcover exceeds 18 inches in Grass or groundcover mowed to a height. height no greater than 6 inches. Side Slopes of Dam, Rodent holes Any evidence of rodent holes if facility is acting Rodents removed or destroyed and Berm,internal berm as a dam or berm,or any evidence of water dam or berm repaired. or Embankment piping through dam or berm via rodent holes. Tree growth Tree growth threatens integrity of dams,berms Trees do not hinder facility or slopes,does not allow maintenance access, performance or maintenance or interferes with maintenance activity. If trees activities. are not a threat to dam,berm or embankment integrity,are not interFering with access or maintenance or leaves do not cause a plugging problem they do not need to be removed. Erosion Eroded damage over 2 inches deep where cause Slopes stabilized using appropriate of damage is still present or where there is erosion controi measures. If erosion potential for continued erosion. Any erosion is occurring on compacted slope,a observed on a compacted slope. licensed civil engineer should be consulted to resolve source of erosion. Top or Side Slopes Settlement Any part of a dam,berm or embankment that Top or side slope restored to design of Dam,Berm, has settled 4 inches lower than the design dimensions. If settlement is internal berm or elevation. significant,a licensed civil engineer Embankment should be consulted to determine the cause of the settlement. Irregular surface on Top of berm not uniform and level. Top of berm graded to design internal berm elevation. Pond Areas Sediment Accumulated sediment that exceeds 10%of the Sediment cleaned out to designed accumulation(except designed pond depth. pond shape and depth. first wetpool cell) Sediment Sediment accumulations in pond bottom that Sediment storage contains no accumulation(first exceeds the depth of sediment storage(1 foot) sediment. wetpool cell) plus 6 inches. Liner damaged(If Liner is visible or pond does not hold water as Liner repaired or replaced. Applicable) designed. Water level(all Cell level(s)drops more than 12 inches in any 7- Cell level(s)drops less than 12 wetpooi celis) day period. inches in any 7-day period. Algae mats(first Algae mats develop over more than 10%of the Algae mats removed(usually in the wetpool cell) water surface should be removed. late summer before Fall rains, especially in Sensitive Lake Protection Areas.) 2016 Surface Water Design Manual—Appendix A 4/24/2016 A-21 NO. 16 - WETPOND Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance Is Performed Design planting and Sparse or dying design planting,or when design Design plantings and vegetation are vegetation survivai plantings are not thriving across 80%or more of thriving and appropriately spaced and maintenance the design vegetated areas within the pond; across SO%or more of the design invasive vegetation e.g.,cattails vegetated areas within the pond; invasives removed including root clumps Gravity Drain Inoperable valve Valve will not open and close. Valve opens and closes normally. Valve won't seal Valve does not seal completely. Valve completely seals closed. Emergency Tree growth Tree growth impedes flow or threatens stability of Trees removed. Overflow Spillway spillway. Rock missing Only one layer of rock exists above native soil in Spillway restored to design area five square feet or larger,or any exposure standards. of native soil at the top of out flow path of spillway. Rip-rap on inside slopes need not be replaced. Inlet/Outlet Pipe Sediment Sediment filling 20%or more of the pipe. InleUoutlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inleUoutlet No trash or debris in pipes. pipes(includes floatables and non-floatables). Damaged Cracks wider than Yrinch at the joint of the No cracks more than'/.-inch wide at inleUoutlet pipes or any evidence of soil entering the joint of the inlet/outlet pipe. at the joints of the inleUoutlet pipes. 4/24/2016 2016 Surface Water Design Marival—Appendix A A-22 NO. 17 - WETVAULT Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Trash and debris Trash and debris accumulated on facility site. Trash and debris removed from facility site. Treatment Area Trash and debris Any trash and debris accumulated in vault No trash or debris in vault. (includes floatables and non-floatabies). Sediment Sediment accumulation in vault bottom exceeds No sediment in vault. accumulation the depth of the sediment zone plus 6 inches. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oii,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Vault Structure Damage to wall, Cracks wider than Yz-inch,any evidence of soil Vault is sealed and structurally frame,bottom,and/or entering the structure through cracks,vault does sound. top siab not retain water or qualified inspection personnel determines that the vault is not structurally sound. Baffles damaged Baffles corroding,cracking,warping and/or Repair or replace baffles or walls to showing signs of failure or baffle cannot be specifications. removed. Ventilation Ventilation area blocked or plugged. No reduction of ventilation area exists. InIeUOutlet Pipe Sediment Sediment filling 20%or more of the pipe. Inlet/outlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inleUoutlet No trash or debris in pipes. pipes(includes floatables and non-floatables). Damaged Cracks wider than Yrinch at the joint of the No cracks more than Y.-inch wide at inleUoutlet pipes or any evidence of soil entering the joint of the inleUoutlet pipe. at the joints of the inleUoutlet pipes. Gravity Drain Inoperable valve Valve will not open and close. Valve opens and closes normally. Valve won't seal Valve does not seal completely. Valve completely seals closed. Access Manhole Access cover/lid Access cover/lid cannot be easily opened by one Access cover/lid can be opened by damaged or difficult to person. Corrosion/deformation of coverllid. one person. open Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. not working maintenance person with proper tools. Bolts cannot be seated. Self-locking cover/lid does not work. Cover/lid difficult to One maintenance person cannot remove Cover/lid can be removed and remove cover/lid after applying 80 Ibs of lift. reinstalled by one maintenance person. Access doors/plate Large access doors not flat and/or access Doors close flat;covers access has gaps,doesn't opening not completely covered. opening completely. cover completely Lifting Rings missing, Lifting rings not capable of lifting weight of door Lifting rings sufficient to lift or rusted or plate. remove door or plate. Ladder rungs unsafe Missing rungs,misalignment,rust,or cracks. Ladder meets design standards. Allows maintenance person safe access. 2016 Surface Water Design Manual—Appendix A 4/24/2016 A-23 Operation & Ma i ntena nce (C1M) Manual v01 � i¢�t� ■ Bioretention Systems C=:':=NTECH� ENGINEERED SOLUTiONS www.ContechES.com/filterra � 800-338-1122 �� fr � � � �4 � � � � �. . g ,v �_ _:�� Bioretention Systems Table of Contents Overview • FilterraOGeneral Description • Filterra0 Schematic • Basic Operations • Design Maintenance • Maintenance Overview »Why Maintain? »When to Maintain? • Exclusion of Services • Maintenance Visit Summary • Maintenance Tools,Safety Equipment and Supplies • Maintenance Visit Procedure • Maintenance Checklist C=:'::NTECH� ENGINEERED SOLUTIONS www.ContechES.com/filterra � 800-338-1122 General Description The following general specifications describe the general operations and maintenance requirements for the Contech Engineered Solutions LLC stormwater bioretention filtration system, the Filterra'�. The system utilizes physical, chemical and biological mechanisms of a soil, plant and microbe complex to remove pollutants typically found in urban stormwater runoff,The treatment system is a fully equipped, pre-constructed drop-in place unit designed for applications in the urban landscape to treat contaminated runoff. Stormwater flows through a specially designed filter media mixture contained in a landscaped concrete container.The mixture immobilizes pollutants which are then decomposed, volatilized and incorporated into the biomass of the Filterra" system's micro/macro fauna and flora. Stormwater runoff flows through the media and into an underdrain system at the bottom of the container, where the treated water is discharged. Higher flows bypass the Filterra�to a downstream inlet or outfall. Maintenance is a simple, inexpensive and safe operation that does not require confined space access, pumping or vacuum equipment or specialized tools. Properly trained landscape personnel can effectively maintain Filterra°Stormwater systems by following instructions in this manual. www.ContechES.com/filterra � 800-338-1122 Basic Operations Filterra0is a bioretention system in a concrete box. Contaminated stormwater runoff enters the Design and Installation filterboxthrough thecurbinletspreadingover the 3-inch layer of mulch on the surface ofthe Each project presents different scopes for the filtermedia.Asthewaterpassesthroughthe useofFilterraOsystems.Toensurethesafeand mulch layer, most of the larger sediment particles specified function of the stormwater BMP and heavy metals are removed through Contech reviews each application before sedimentation and chemical reactions with the suppiy. Information and help may be provided to organic material in the mulch.Water passes the design engineer during the planning through the soil media where the finer particles process, Correct are removed and other chemical reactions take Filterra0 box sizing(by rainfall region)is essential place to immobilize and capture pollutants in the to predict pollutant removal rates for a given soil media,The cieansed water passes into an area. The engineer shall submit calculations for underdrain and flows to a i e s stem or approval by the local jurisdiction. P�p Y other appropriate discharge point,Once the pollutants are in the soil, the bacteria begin to The contractor is responsible for the correct break down and metabolize the materials and installation of Filterra units asshown in approved the plants begin to uptake and metabolize the P�ans.Acomprehensive installation manual is pollutants,Some pollutants such as heavy available at www.conteches,com, metals, which are chemically bound to organic Maintenance particles in the mulch,are released over time as theorganicmatterdecomposestoreleasethe Why Maintain? metals to the feeder roots of the plants and the All stormwater treatment systems require cellsofthebacteriainthesoilwherethey maintenanceforeffectiveoperation.This remain and are necessity is often incorporated in your property's recycled.Other pollutants such as phosphorus permitting process as a legally binding BMP are chemically bound to the soil particles and maintenance agreement, released slowly back to the plants and bacteria and used in their metabolic processes, • Avoid legal challenges from your Nitrogen goes through a very complex variety of lurisdiction's maintenance biochemical processes where it can ultimately enforcement program. end up in the plant/bacteria biomass,turnedto • Prolong the expected lifespan of your Filterra nitrogengasordissolvesbackintothe water media. column as nitrates depending on soil temperature, pH and the availability of oxygen. The pollutants ultimately are retainedinthe mulch,soil and biomass with some passing out of the system intothe air or back intothe water, www.ContechES.com/filterra � 800-338-1122 • Avoid more costly media replacement. e.g. some fast food restaurants require more • Help reduce pollutant loads leaving your frequent trash removal.Contributing drainage property, areas which are subject to new development wherein the recommended erosion and sediment controi measures have not been implemented may Simple maintenance of the Filterra0 is required require additional maintenance visits. to continue effective pollutant removal from stormwater runoff before discharge into Some sites may be subjected to extreme sediment downstream waters. This procedure will also or trash loads,requiring morefrequent extend the longevity ofthe living biofilter maintenance visits,This is the reason for detailed system.The unit will recycle and accumulate notes of maintenance actions per unit, helping the pollutants within the biomass,but Supplier and Owner predict future maintenance isalsosubjectedtoothermaterialsentering frequencies, reflectingindividualsiteconditions. the throat.This may include trash,silt and Owners must promptly notify the(maintenance) leaves etc.which wili be contained within the Supplier of any damage to the plant(s),which void below the top grate and above the mulch constitute(s)an integral part of the bioretention layer,Too much silt may inhibit the Filterra's0 technology.Owners should also advise other flow rate, landscape or maintenance contractors to leave which is the reason for site stabilization before all maintenancetotheSupplier(i,e.nopruning activation, Regular replacementof the mulch orfertilizing). stops accumulation of such sediment. When to Maintain? Contech includes a 1-year maintenance plan with each system purchase,Annual included maintenance consists of a maximum of two(2) scheduled visits,Additional maintenance may be necessary depending on sedimentand trash loading (by Owner or at additional cost). The start ot the maintenance plan begins when the system is activated for full operation. Full operation isdefined asthe unitinstalled, curb and gutter and transitions in place and activation(by Supplier)when mulch and piant are added and temporary throat protection removed. Activation cannot be carried out until the site is fully stabilized(full landscaping, grass cover, final paving and street sweeping completed), Maintenancevisitsarescheduledseasonally;the spring visit aims to clean up after winter loads including salts and sands while the fall visit helpsthe system by removing excessive leaf litter. It has been found that in regions which receive between 30-50 inches of annual rainfaii,(2) two visits are generally required; regions with less rainfall often only require(1)one visit per annum,Varying land uses can affect WWW,ContechES.com/filterra ( 800-338-1122 maintenance frequency; Exclusion of Services It is the responsibility ofthe ownerto provide adequate irrigation when necessaryto the plant of the FilterraOsystem. Clean up due to major contamination such as oils,chemicals,toxic spills,etc,will result in additional costs and are not covered under the Supplier maintenance contract.Should a major contamination event occur the Owner must block off the outlet pipe ofthe Filterra0(where the cleanedrunoffdrainsto,suchasdropinlet)andblockoffthethroatoftheFilterra0, The Supplier should be informed immediately. Maintenance Visit Summary Each maintenance visit consists of the following simple tasks(detailed instructions below). 1. Inspection of Filterra0and surrounding area 2, Removal of tree grate and erosion control stones 3. Removal of debris, trash and mulch 4. Mulch replacement 5. Plant health evaluation and pruning or replacement as necessary b. Clean area around Filterra0 7. Complete paperwork Maintenance Tools, Safety Equipment and Supplies Ideal tools include; camera, bucket,shovel, broom, pruners, hoe/rake, and tape measure, Appropriate Personal Protective Equipment(PPE)should be used in accordance with local or company procedures,This may include impervious gloves wherethetype oftrash isunknown,high visibility clothing and barricades when working in close proximitytotraffic and also safety hats and shoes,A T-Bar or crowbar should be used for moving the tree grates(up to 170 Ibs ea,), Most visits require minor trash removal and a full replacement of mulch. See below for actual nurnber of bagged mulch that is required in each unit size. Mulch should be a double shredded, hardwood variety; do not use colored or dyed mulch, Some visits may require additional Filterra0 engineered soil media available from the Supplier, :• - • :• • • - • - • � • � -• :�• 4 4 16 4 2 6 4 24 6 3 8 4 32 S 4 6 6 36 9 5 8 6 48 12 6 10 6 60 15 8 12 6 72 18 9 13 7 91 23 12 www.ContechES.com/filterra ( 800-338-1122 Maintenance Visit Procedure Keepsufficientdocumentationofmaintenanceactionstopredictlocation specific maintenance frequencies and needs, An example Maintenance Report is included in this manual. 1. Inspection of Filterra0 and surrounding area • Record individual unit before maintenance with photograph(numbered), Record on Maintenance Report(see example in this document}the following: Record on Maintenance Report the following; Standing Water yes � no Damage to Box Structure yes � no Damage to Grate yes � no Is Bypass Clear yes � no If yes answered to any of these observations, record with close-up photograph(numbered). 2. Removal of tree grate and erosion control stones • RemovecastirongratesforaccessintoFilterraObox. • Dig out silt(if any)and mulch and remove trash&foreign items, Recard on Maintenance Report the folEawing: Silt/Clay yes � no �ups! B�9s Yes � no Leaves yes � no # of Buekets Removed 3. Removal of debris, trash and mulch • After removal of mulch and debris, measure distance from the top of the Filterra0 engineered media soil to the bottom of the top slab.If this distance is greater than 12",add Filterra0 media(not top soil or other)to recharge to a 9"distance Recard o�Maintenance Report the fallowing: Disfiance of Bottom of Top Slab(inches) # of Bucke�of Media Added www.ContechES.com/filterra � 800-338-1122 4. Mulch replacement • Please see mulch specifications. • Add double shredded mulch evenly across the entire unit to a depth of 3". • Ensure correct repositioning of erosion control stones bythe Filterra0 inlet to allow for entry of trash during a storm event, • Replace Filterra0 grates correctly using appropriate lifting or moving tools, taking care not to damage the plant. 5. Piant health evaluation and pruning or replacement as necessary • Examine the plant's health and replace if dead, • Prune as necessary to encourage growth in the correct directions Record on Maintenance Report the following: Height above Grate (ft) Width at Widest Point (ff) Health alive � dead DamagetoPlant yes ( no Plant Replaced yes � no 6. Clean area around Filterra0 • Cleanareaaroundunitandremoveallrefusetobedisposedof appropriately. 7. Complete paperwork • Deliver Maintenance Report and photographs to appropriate location (normally Contech during maintenance contract period), • Somejurisdictionsmayrequiresubmissionofmaintenancereportsin accordance with approvals, It is the responsibility of the Owner to comply with locai regulations. www.ContechES.com/filterra � 800-338-1122 Maintenance Checklist � • .. - . . . . . , . . . � . Excessive sediment Accumulated Inletshouidbefreeof Sediments and/or trash Inlet or trash sediments or trash obstructions allowing should be removed. accumulation. impair free flow of free distributed flow of waterinto Filterra. water into Filterra. Trash a nd debris should Trash and be removed and mulch floatabledebris Excessive trash Minimal trash or other cover raked level.Ensure MulchCover accumulation. and/or debris debris on mulch cover. barknuggetmulchisnot accumulation. used. "Ponding"in unit Recommend "Ponding"of could beindicativeof Stormwater should drain contact manufacturer wateronmulch cloggingdueto freelyandevenlythrough andreplacemulch MulchCover cover. excessivefine mulchcover. asa minimum. sediment accumulation or spill of petroleum oils. Soil/mulch too wet, Plants not evidence of spill. growing or in Incorrect plant Plants should be healthy Contact Vegetation poorcondition. selection. andpestfree. manufacturerfor Pest infestation. advice. Vandalism to plants. Plants should be Trim/prune plants in Plantgrowth appropriatetothe accordancewithtypical Vegetation excessive. speciesandlocationof landscaping and safety Filterra. needs. Crackswiderthan 1/2 inchorevidenceof Structure has soil particlesentering Structure visible cracks. the structurethrough Vault should be repaired. the cracks. Maintenance is ideail to be er ormed twice annuall . C=;►�NTECH` ENGINEERED 50LUTlONS O 2015 Contech Engineered www.ContechES.com/filterra � 800-338-1122 Solutions LLC Revised 6/22/2015