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Home My WebLink About20041108000301 STORM EASEMENT 110804A3- /3. 2- Return Address: City of Auburn City Clerk 25 West Main Auburn, WA 98001 20041108000301 PACIFIC NW TIT EAS 85.00 PAGE001 OF 028 11/08/2004 09:51 KING COUNTY, WA Above this line reserved for recording information. STORM WATER EASEMENT AND MAINTENANCE AGREEMENT AUUJ-UUU4 Reference # (if applicable): N/A aZ~ n Grantor/Borrower: Reich Construction, Inc. L-~ ~ 4 ~p 1` Grantor/Borrower(2): Joe W. Schwartz and Lois L. Schwartz Y Grantee/Assignce/Beneficiary: City of Auburn Legal Description/STR: SE 1/4 18-21 N-05E Assessor's Tax Parcel ID#: 214980-0320, 0322, 0329, 0330 & 0324, 0325 'IT >ti THIS EASEMENT AND AGREEMENT made and entered into this %-22'f"day of A _ , 2004, by and between the City of Auburn, a municipal corporation of King County, Washington, hereinafter referred to as "CITY" and Grantor(1) Reich Construction, Inc. owners of Lots 3 and 4 of the City of Auburn Short Plat No. SP-14-79, as recorded under recording number 7912060706, Lot 3 of City of Auburn Short Plat No. SP-13-79, as recorded under recording number 7912060707, Lot A of City of Auburn Lot Line Adjustment No. LLA-0022-99 as recorded under recording number 19990819001237, and an undivided interest in Tract X East as recorded under Short Plat 13-79 and Tract X West as recorded under Short Plat 14-79, and Grantor(2) Joe and Lois Schwartz, owners of Lots 2 and 3 of City of Auburn Lot Line Adjustment No. LLA-8-88 as recorded under recording number 8807150927, and an undivided inte_rg~ o~in•rTract,-X-.Wgst- as recorded under Short Plat 1.4-79, hereinafter referred to as "PROPERTY-OWNERS!'...,:,, = trot CX?film{' r 'inn nr WHEREAS, PROPERTY OWNERS have applied for--certain "permits with the i19 qtr itn 1YlEii t. i1i~i tlil9. rd CITY for the construction of facilities for a private access road located on 3 Street SE, which create impervious surface; and WHEREAS, the PROPERTY OWNERS will complete a storm system; and WHEREAS, the PROPERTY OWNERS and the CITY desire that the storm system be maintained to provide adequate facilities for controlling both the quantity and quality of storm drainage; and Storm Water Easement and Maintenance Agreement Page I of 28 A WHEREAS, for maintenance of a storm system it is necessary to have appropriate right-of-way to bring in equipment to conduct maintenance functions; and WHEREAS, maintenance requirement is a covenant running with the land and binding upon all heirs, successors and assigns of both parties; and WHEREAS, the parties desire that this Agreement be recorded to advise heirs, successors and assigns of both parties as to the existence of this easement and agreement; and WHEREAS, an easement is needed to bring in maintenance equipment; and WHEREAS, the parties are both desirous of permitting inspection of the storm system to make certain that it is functioning properly and for purposes of determining the appropriate repairs. NOW, THEREFORE, BASED UPON MUTUAL COVENANTS TO BE DERIVED THE PARTIES AGREE AS FOLLOWS: Section 1; EASEMENT PROPERTY'OWNERS hereby provides a non-exclusive easement to the City for access, inspection, and maintenance for the purposes of this Agreement and the attached Storm Water Pollution Prevention Plan, over, under and on that real estate described in Exhibit "A" and on that portion of the property as showing on the approved Record Drawings revised pursuant to construction records for the City of Auburn under Permit No. FAC03-0004, which record drawings are hereby incorporated by reference as if set out in full. This easement shall be a burden to that real estate which is legally described and attached as Exhibit "A" and incorporated herein by this reference, and shall be a benefit to the City Storm Drainage Utility System. Section 2, HEIRS, SUCCESSORS AND ASSIGNS This Agreement shall be binding upon the heirs, successors and assigns of the parties. Section 3, MAINTENANCE The PROPERTY OWNERS agree to maintain the storm system in accordance with the ordinances and all applicable codes of the CITY and the Storm Water Pollution Prevention Maintenance and Operation Schedule attached as Exhibit "B" and incorporated Storm Water Easement and Maintenance Agreement Page 2 of 28 herein by this reference. The PROPERTY OWNERS do hereby agree that the CITY may enter onto the property of the PROPERTY OWNERS via the easement. described above to inspect and perform necessary maintenance if, after the PROPERTY OWNERS are given notice to maintain, the PROPERTY OWNERS fail to maintain. Further, the PROPERTY OWNERS agree the CITY may enter onto the property of PROPERTY OWNERS via the easement described above to perform emergency maintenance in the event of the storm system's failure which might result in adverse impacts(s) on public facilities or private facilities of other property owners. In both events the PROPERTY OWNERS agree to reimburse the CITY for the costs incurred by the CITY in maintaining the storm system. Should the CITY incur attorney's fees and/or costs in enforcing the agreement and/or in maintaining or collecting maintenance fees, the PROPERTY OWNERS agree to pay reasonable attorney's fees and all costs incurred by the CITY. Section 4, ACKNOWLEDGMENT OF OTHER ENFORCEMENT ACTIONS PROPERTY OWNERS acknowledge that there may be liability for violations of codes that could result in additional fines and/or the possibility of incarceration in addition to the fees for maintenance should violations occur. EXECUTED as of the date first written above. CITY OF AUBURN zz,- /b - / 3 -o`( rm Drai ge Engineer Date Owner Date 9 caner Date Owner Date Storm Water Easement and Maintenance Agreement Page 3 of 28 STATE OF WASHINGTON) ) ss COUNTY OF KING ) I certify that I know or have satisfactory evidence that `P~ an~J P~h~ ~~t i and are the person(who appeared before me, and said persons acknowledged that they signed this instrument, on oath stated that they were authorized to execute the instrument and acknowledged it as the d W 'k i E _ of ~ r,-,' et, Co w s~u Q-4, cY~ ~ni Q- a corporation, to be the free and voluntary act of such parties for the uses and purposes mentioned in this instrument. Dated ° a U I - F BAD,, , I'$ AZ ' ;O I NOTARY ku,i l9 1 f- PA-4 PUBL\G 2 s Notary Publ' nand for the S to of as ington Q? Residing atJti e0 .U.-k~I •rl.'~~p9'~1 - My appointment, expires' r -'cf o'~ STATE OF WASHINGTON) ) ss COUNTY OF KING ) I certify that know or have satisfactory evidence that 50e. W S cA4 too„r#m- Lo ' L• 0~ w -x -ate---- is a he erson(s) who appeared before me, and said individual(s) acknowledged that he she/4 signed this instrument and acknowledged it to be his/her/their free and voluntary act for the uses and purposes mentioned in this instrument. Dated t 0~~Psioiv''/~Cy~ C. (-AD NOTARY ~P a C • t a jo : U CO Notary ubli n and for the State of hington of !°t1BUC Residing at I~~~`~y'•.11_29A';. My appointment ex ' es 1 i - 29 ~o~ w .1w Storm Water Easement and Maintenance Agreement Page 4 of 28 STATE OF WASHINGTON) )ss. County of King ) I certify that I know or have satisfactory evidence that Tim Carlaw is the person who appeared before me, and said person acknowledged that he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it as the STORM DRAINAGE ENGINEER of THE CITY OF AUBURN to be the free and voluntary act of such party for the uses and purposes mentioned in this instrument. Dated / o jar oy BAD p$ OTA~qk N PIJ13LIC z Notary Public in and for the State of Washington o s Residing at '--r-txh ej u N 'i- I ~''9'~~' • rr ~t 9`a~'~~~=r My appointment expires r I i b CP/tlb File: #1007 REF. H:Development\Forms\i_egal Documents\2004 (Rev. 12/03) Storm Water Easement and Maintenance Agreement Page of 28 EXHIBIT "A" DESCRIPTION OF PROPERTY COVERED BY THIS EASEMENT THE EASEMENT COVERAGE SHALL INCLUDE THE FOLLOWING PIECES OF PROPERTY: TRACT X EAST AS RECORDED UNDER SHORT PLAT 13-79, AS RECORDED UNDER RECORDING NUMBER 7912060707 TRACT X WEST AS RECORDED UNDER SHORT PLAT 14-79,. AS RECORDED UNDER RECORDING NUMBER 7912060706 THE EAST 30 FEET OF LOT 3 OF AUBURN LOT LINE ADJUSTMENT NO LLA 8-88 RECORDED UNDER RECORDING NUMBER 8807150927. THE WEST 30 FEET OF LOT A OF CITY OF AUBURN LOT LINE ADJUSTMENT NO. LLA-0022-99, AS RECORDED UNDER RECORDING NUMBER 19990819001237, RECORDS OF KING COUNTY, WASHINGTON. AND THE WEST 40 FEET OF THE NORTH 6 FEET OF LOT 3 OF CITY OF AUBURN SHORT PLAT NO. SP-13-79, AS RECORDED UNDER RECORDING NUMBER 7912060707, RECORDS OF KING COUNTY, WASHINGTON. Storm Water Easement and Maintenance Agreement Page 6 of 28 EXHIBIT "B" STORMWATER POLLUTION PREVENTION PLAN for 3RD STREET SHORT PLAT CIVIL FAC 003-0004 Site Address: The project is located in the S.E. 'l,, Section 18, Township 21 North, Range 5 East, W,M. at 14XX 3rd Street S.E., Auburn, WA. The tax parcel numbers at the time of application are 214980 -0320, -0322, -0329 & -0330. Introduction: This storm water pollution prevention plan has been prepared to address maintenance and operation recommendations for the 3rd Street Short Plat project storm water management system located within the access easement and Tract "X". The site is located at 14XX 3rd Street S.E. and is 1.55 acres in size. The project will construct a private access road and utilities for (4) future multi-family buildings located on separate lots. The buildings will be constructed in a later phase and will be required to provide separate private infiltration trenches on their lots for the roof storm water run-off (design per City of Auburn standard detail STORM-05). The common access drive surface storm water management system will consist of asphalt paving, several catch basins, piping, a stromceptor water quality manhole, and an infiltration trench (See approved development plans C 1 thru C3). The City of Auburn's Construction Standards for storm water management requires both storm water quantity and quality control for all proposed developments. We have proposed to collect the access drive storm water runoff from the pavement areas in a series of catch basins. This water is conveyed via storm drainage pipes to a Stormceptor water quality manhole located near the S.W. corner of parcel 214980-0335. Here the storm water will be treated and released into a infiltration trench for discharge into the ground. The system has been designed to release the existing conditions 25 year flows during the developed 25 year-24 hour storm event with a 1.4 factor of safety. Plan Goal: The specific purpose for the storm water facility is to minimize pollution that is typically associated with modem development. In general, pollution from motor vehicles and pollution generated from erosion. Attached to this narrative is a maintenance manual which offers guidelines to the owner for storm water facility maintenance. Storm Water Easement and Maintenance Agreement Page 7 of 28 Prevention BMP'S The catch basins shall have. stenciled on them "DUMP NO WASTE -:DRAINS TO STREAM.. The owner shall be responsible for sweeping the paving, installing storm drainage stenciling and provide spill control procedures. In case of.spill call 1-425-649- 7000. The catch basins~will need to be visually inspected for accumulation of. debris and silt and maintained as required by this pollution prevention plan and attachments. Maintenance Standards / Requirements for Drainage Facilities: No. 2 - Infiltration ............................see pages. 5 & 6 No: 5 - Catch Basins .........................see pages 7 & 8 No. 10 Conveyance Facilities. . see page 9 No. 12 - Access Roads / Easements see, page 10 No. 14 - Oil Control Facility... see pages I I thru 22: Treatment BMP'S Catch basins have been provided to trap sediment: The Stormceptor manhole has been provided for water quality /oils. Inspection / Maintenance: Regular inspections of the drainage •facilities should be carried out twice per year; in the. spring and fall. The responsible party;should keep records of these inspections available for review by the City (see sample inspection form page 4). Additional inspections may be. required after severe seasonal storms or when ponding is visible at any of the catch basin locations. Catch Basins shall be cleaned when sump is 1/3' full Of sediment or debris. Routine maintenance of the site will include mowing; care of landscaping and the removal of trash: and debris from the drainage system. The parking lots.and driveways should be. kept clean and in repair. Events such as major storms or heavy winds will require immediate inspections for damages. To ensure proper water. quality and treatment, the system must be properly maintained: Be careful to avoid introducing landscape fertilizer to receiving waters or groundwater. Storm Water Easement and Maintenance Agreement Page 8 of 28 Person of Responsibility: Mr. Egan Logan / Mr. Paul Hunt Developer's Northwest, Inc. P.O. Box 731822 Puyallup, WA 98373 Ph (253) 841-7886 Design Engineer: Poe Engineering, Inc. 1314 81° Street NE, Suite 142 Auburn, WA 98002 Ph (253) 833-4052 Plan and / or Information Updates: The City of Auburn Utilities Section is to review and approve any changes to this stormwater Pollution Prevention Plan prior to changes in its implementation. Additionally, any changes in ownership or person of responsibility are to be reported to the City Utilities Sections. (Changes to ownership shall be reported to the City of Auburn's Utilities Section.) Storm Water Easement and Maintenance Agreement Page 9 of 28 INSPECTION/MAINTENANCE CHECKLIST STRUCTURE DATE OF INSPECTION/MAINTENANCE J: Results/ Maintenance Date Inspection.. All Catch Basins Results Maintenance Done Inspection Conveyance Pipes Results Maintenance Done Stormceptor. Inspection Manhole Results Maintenance: Done Infiltration Inspection System Results Maintenance Done Access Paving Inspection Results Maintenance Done Storm Water Easement and Maintenance Agreement Page 10 of 28 APPENDIX A MAINTENANCE STANDARDS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES (TAKEN FROM 1998 KING COUNTY SURFACE WATER DESIGN MANUAL) NO.2- INFILTRATION Maintenance Defect Conditions When Maintenance Results Expected When Component Is Needed Maintenance is Performed General Trash & Debris See 'Ponds' Standard No. I See 'Ponds* Standard No, t Poisonous Vegetation See 'Ponds' Standard No. 1 See 'Ponds' Standard No. i Pollution See 'Ponds' Standard No. I See 'Ponds' Standard No. 1 llnmowed Grass/ See 'Ponds' Standard No. I See 'Ponds' Standard No.1 Ground Cover Rodent Holes See 'Ponds' Standard No. 1 See 'Ponds' Standard No.1 Insects Sea'Ponds' Standard No. 1 See 'Ponds* Standard No.1 Storage Area Sediment A percolation test pit or test of facility Indicates Sediment is removed and/or facility facility is oily working at 90% of its designed is cleaned so that infiltration system capabilities. It two inches or more sediment is works according to design. present, remove. Sheet Cover (If Sheet cover is visible and has more [hat three Sheet cover repaired or replaced. Applicable) 1144nch holes in it Sump Filled with Any sediment and debris filling vault to 10% of Clean out sump to design depth. Sediment and Debris depth from sump bottom to bottom of outlet pipe (11 Applicable) or obstructing flow into the connector pipe, Titer Sags Filled with Sediment Sediment and debris fill bag more Than 1/2 Jul]. Replace fitter bag or redesign and Debris system. Rock Filters Sediment and Debris By Visual Inspectlon, little or no water flows Replace gravel in rock filer. through fitter during heavy rain storms. Side Slopes of Pond Erosion See 'Ponds' Standard No. 1 See 'Ponds' Standard No. 1 Emergen Rack Missing See 'Ponds' Standard No. 1 OverffowzAlway Settling Ponds and Sediment Remove when 6' or more, Vaults Mote, Sediment accwnutawn of more than .23 inches per year may indicate excessive erosion is occurring upstream of the lacili ry or the t conveyance systems are not being property maintained. The contrbuNng drainage area should be checked /or erosior, problems or inadequate maintenance of conveyance systems if excessive sedimeriration is noted in an iri tlation raci ity. Check twice a year during hrst2 years of cporadon; once a year mereafter. Clean maMOles carch basins, repair damaged inlerslouttets, dean trash racks. Storm Water Easement and Maintenance Agreement Page I I of 28 * REFERENCED BY NUMBER 2 NO. I - DETENTION PONDS Maintenance Defect Conditions When Maintenance Results Expected When Component Is Needed Maintenance Is Performed General Trash & Debris Any trash-and debris which exceed 1 cubic foct . 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.. Poisonous Vegetation Any poisonous or nuisance vegetation which. may constitute a hazard m County personnel or the public. Pollution Oil, gasoline; or other contaminants of one gallon ormore or any amount found that could: t) cause damage to plant, animal, or marine life: 2) constitute afire hazard; or 3) be flushed downstream during rain storms. Unmowed Grassi If facility is.located in private residential area, Ground Cover mowing is needed when grass exceeds 18 inches in height. In other areas, the general policy is to make the pond site match adjacent ground coyer and terrain as tong as there is no interference with the tunction of the facility. Rodent Holes Insects' Tree Growth Side Slopes of Pond Erosion Storage Area Sediment Pond Dikes Emergency Overflow/Spillway .Any evidence of rodent holes if facility is acting as a dam or berm, or any evidence of water piping through dam or berm via rodent holes. When insects such as wasps and hornets interfere with maintenance activities. Tree growth does not allow maintenance access or interferes with maintenance activity (i.e., slope mowing, silt. removal, vactodrig, or equipment movements). If trees are not interfering with access, leave trees. alone. Eroded damage over 2 inches deep where cause of damage is still present or where there is potential for continued erosion. Accumulated sediment that exceeds IMA of the designed pond depth. No danger of poisonous vegetation where County personnel; or the public might normally be. (Coordination with Seattle•)Gng County Health Department) No contaminants, present other than a :surface film. (Coordination with Seattlerl(Ing County Health Department) When mowing is needed, . grasslground cover should be mowed to 2 inches in height. Mowing of. selected higher use areas rather than the entire slope may be acieptabte for some situations: Rodents destroyed and dam or berm repaired. (Coordination with SeattlelGng County Health Department) Insects destroyed or removed from site. Trees do not hinder maintenance activities. Selectively Cultivate trees such as alders for firewood. Slopes should be stabilized by using appropriate erosion control measure(s); e.g., rock reinforcement:,planting of grass. compaction: Sediment cleaned out to designed pond shape and depth; pond reseeded if necessary to control erosion. Settlements Any part of dike which has settled Q inches lower Dike should be built beck to the than the design elevation. design elevation.' Rock Missing Only one layer of rack exists above native soil in Replace rocks to design standards. area five squara.feet or larger, or any exposure of native soil at the top of out flow path of spillway. Rip-rap on inside slopes need not be replaced. Storm Water Easement and Maintenance Agreement . Page 12 of 28 NO. 5 - CATCH BASINS Maintenance Defect Conditions When Maintenance is Needed Results Expected When Component Maintenance is performed General Trash & Debris Trash or debris of more than 112 cubic toot which is No Trash or debris located (Includes Sediment) located immediately In front of the catch basin immediately in front of catch opening or is blocking capacity of the basin by basin opening, more than 101% Trash or debris (in the basin) that exceeds 113 the No trash or debris In the catch deptn from the bottom of basin to inven the lowest basin. pipe into or out of the basin. Trash or debris in any inlet or outlet pipe blocking Inlet and outlet pipes free of more then 113 of its height trash or debris. Dead animals or vegetation that could generate No dead animals or vegetation odors Met could cause complaints or dangerous present within the catch basin. gases (e.g., methane). Deposits of garbage exceeding 1 cubic foot in No condition present which volume would attract or support the breeding 61 insects or rodents. Structure Damage to Comer of frame extends more than 314 inch past Frame is even with curb. Frame and/or Top Stab curb face into the street (If applicable). Top slab has holes larger than 2 square inches or Top slab is free of holes and cracks wider than 114 inch (Intent is to make sure cracks. all material is running into basin). Frame not sitting Flush on top slab, i.e., separation Frame is sitting flush on top of more than 314 inch of qie frame from the top slab. slab. Cracks in Basin Wellsf Cracks wider than 1/2 inch and longer than 3 feet Basin replaced or repaired to Bottom any evidence of soil particles entering catch basin design standards. through cracks, or maintenance person judges that structure is unsound, Cracks wider than 1/2 inch and longer than 1 foot No cracks more than 1/4 Inch at the joint of any inlet/ outlet pipe or any evidence wide at the Joint of injetoutlet of soil particles entering catch basin through pipe. cracks. Sediment/ Basin has settled more than t inch or has rotated Basin replaced or repaired to Misalignment more than 2 inches out of alignment design standards. Storm Water Easement and Maintenance Agreement Page 13 of 28 NO.5 - CATCH BASINS (COAMNUED) Maintenance Defect Conditions When Maintenance Is Needed Results Expected When Component Maintenance is performed Fire Hazard Presence of. chemicals such as natural gas, oil and No flammable chemicals gasoline. present. Vegetation Vegetation growing across and blocking mare than No vegetation blocking opening 10% of the basin opening. to basin. Pollution Catch Basin Cover Cover Not in Place. Locking Mechanism Not Working Vegetation.growing in inlettoutiet pipe joints that is more than siic inches tall and less than si* inches apart Nonflammable chemicals of more than 1/2 cubic foot .per three feet of basin length. ,Cover is missing or only partially inplace, Any open .catch basin requires maintenance.' Mechanism cannot be opened by on maintenance person with proper tools. Bolls into frame have less than V2 inch of thread, No vegetation or root growth present No pollution present other than surface film, Catch basin cover is closed Mechanism opens with proper toots: Cover Difficult to One maintenance person cannot remove lid after . Cover can be removed by one Remove applying 8Q lbs, of tiff; intent is keep cover from maintenance person. sealing off access to maintenance. Ladder Ladder Rungs Ladder is unsafe due to missing rungs, misalignment, Ladder meets design standards Unsafe rust cracks, or sharp edges, and allows maintenance person safe access. Metal,Grates Grate with opening wider-than 718 inch. Grate opening meets design (if Applicable) standards. Trash and Debris trash and debits that Is. blocking more than 20% of Grate free of trash and debris. gratesurface, Damaged or Grate missing or broken member(s), of the grate. Grate is in place and meets Missing. design standards. Storm Water Easement and Maintenance Agreement Page 14 of 28 NO. 10 -CONVEYANCE SYSTEMS (PIPES & DITCHES) Maintenance Defect Conditions When Maintenance Is Needed Results Expected When Component Maintenance is Performed Pipes Sediment & Debris Accumulated sediment that exceeds 20% of the Pipe cleaned of a)) sediment diameter of the pipe. and debris. Vegetation Vegetation that reduces free movement of water An vegetation removed so water through pipes. flows freely through pipes. Damaged Protective coating Is damaged; rust is causing Pipe repaired or replaced. more than 501/6 deterioration to any part of pipe. Any dent that decreases the cross section area of Pipe repaired or replaced. pipe by more than 20%. Open Ditches Trash & 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 deanedt flushed of all design depth. sediment and debris so that it matches design. Vegetation Vegetation that reduces free movement of water Water flows treaty through through ditches. ditches. Erosion Damage to See *Ponds' Standard No. 1 See 'Ponds' Standard No, 1 Slopes Rock Uning Out of Maintenance person can see native soil beneath Replace rocks to design Place or Missing (if the rock lining, standards. Applicable). Catch Basins See *Catch Basins: Standard No. 5 See 'Catch Basins' Standard No. 5 Debris Barriers See *Debris Barriers' Standard No.6 See 'Debris Satirists' Standard (e,g„ Trash Pack) No. 6 NO.11 - GROUNDS (LANDSCAPING) Maintenance Defect Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed General Weeds Weeds growing in more than 201r. of the landscaped Weeds present in less than 5% (Nonpoisonous) area (trees and shrubs only). of the landscaped area. Safety Hazard Trash or titter Trees and Shrubs Damaged Any presence of poison Ivy or other poisonous No poisonous vegetation vegetation. present in Landscaped area. Paper; cans, bottles, totaling more than 1 cubic foot Area dear of filter, within a landscaped area (trees and shrubs only) of 1.000 square feet Limbs or pans of trees or shrubs that are split or broken which affect more than 2S% of the total foliage of the tree or shrub. Trees and shrubs with less than 5% of total foliage with split or broken iambs, Trees or shrubs that have been blown down or knocked over. Trees or shrubs which are not adequately supported or are leaning over, causing exposure of the roots. Tree or shrub in place free of in)ury. Tree or shrub in place and adequately supported; remove any dead or diseased trees. Storm Water Easement and Maintenance Agreement Page 15 of 28 NO. 12 - ACCESS ROADS/ EASEMENTS Maintenance Defect Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed. General Trash and Debris Trash and debris exceeds 1 cubic foot per 1,000 Roadway free of debris which square feet i.e., trash and debris would fill up could damage tires. one standards size.garbage can: Blocked Roadway Debris which could.damage vehicle tires (glass Roadway free of debris.which or metal). could damage tires. Road Surface Settlement, Potholes, Mush Spots, Ruts Vegetation in Road Surface .Modular Grid Pavement Shoulders and Ditches Any obstruction which reduces clearance above Roadway overhead dear to 14 feet road surface to less than 14 feet, high,.. . Any obstruction restricting the access to s 10 to 12 foot Width-for a distance of more than 12 feet or.anypoint restricting access to less than a 10 foot width. When any surface defect exceeds 6 inches.in depth and6 square feet in area. In general, any surface defect which hinders or prevents maintenance.access.. Weds growing in the road surface that are. more than'6Inches tall and less than 6 inches tall and less than & inches apart within a 400- square foot area. Build-up of sediment mildly contaminated with petroleum hydrocarbons. Obstruction removed to allow at least a 12 foot access. Road surface uniformly smooth with no evidence of settlement, pottiotes, mush spots, or ruuts. Road surface free of weeds taller than 2 inches. Removal of sediment and disposal in keeping with Health Department recommendations for mildly contaminated soils or catch basin sediments. Erosion Damage Erosion within 1 foot of the roadway more than 8 Shoulder free of erosion and inches wide. and 6 inches deep. matching the surrounding road. Weeds and Brush Weeds and brush•exceed 18 inches in height or Weeds and brush, cut to 2 inches hinder maintenance access. in height or cleared insuch .a way As to allow maintenance access. Storm Water Easement and Maintenance Agreement Page 16 of 28 Hydro Conduit Division R ■ l4- THE STORMCEPTORO SYSTEM Owner's Manual Storm Water Easement and Maintenance Agreement Page 17 of 28 Stormceptor® Owner's Manual Contents 1. Stormceptor Overview 2. Stormceptor System. Operation 3. Identification of Stormceptor 4. Stormceptor Maintenance Guidelines 4.1 Recommended Maintenance Procedure 4.2 Disposal of Trapped Material .from Stormceptor 5. Recommended Safety Procedures 6. Stormceptor Monitoring Protocol 6.1 Pollutants to be Monitored 6.2 Monitoring Methodology Page List of Tables Table t. Stormceptor Dimensions 4 Table 2. Stormceptor Capacities .5 Table 3. Sediment Depths. Indicating Required Maintenance .5 Table 4. Monitoring Pollutants 9 List of Figures Figure 1. Single Inlet/Outlet "Disc" Insert In-Line Stormceptor 6 :Figure 2. STC 450i Inlet Stormceptor 6 Rev. 1/2003 Stormceptor" Storm Water Easement and Maintenance Agreement Page 18 of 28 Thank You! 1Ve want to thank you for selecting the Stormceptor System to use in your efforts in protecting the environment. Stormceptor is one of the most effective and maintenance friendly storm water quality treatment devices available. If you have any questions regarding the operation and maintenance of the Stormceptor System. please call your local Rinker Materials representative, or the Stormceptor Information Line at (800) 909-7763. 1. Stormcepler Overview The Stormceptor System is a water quality device used to remove total suspended solids (TSS) and free oil (TPH) from storm water run-off. Stormceptor takes the place of a conventional manhole or inlet structure within a storm drain system. Rinker Materials manufactures the Stormceptor System with precast concrete components and afiberglass disc insert- A fiberglass Stormceptor can also be provided for special applications. The Stormceptor System product line consists of four patented designs: • The In-Line (Conventional) Swrmeeptor, available in eight model sizes ranging from 900 to 7200 gallon storage capacity. • An In-Line (Series) Stotmceptor is available in ,hree.model sizes ranging from 11,000 to 16,000 gallon storage capacity. • The Submerged Stormceptor, an in-line system designed for oil and sediment removal in partially submerged pipes, available in eight models sizes ranging from 900 to 7200 Gallon storage capacity. • The Net Stormceptor is a 450 gallon unit designed for small drainage areas. Stormceptor removes free oil and suspended solids from storm water preventing hazardous spills and non-point source pollution from entering downstream lakes and rivers. Rinker Materials and its affiliates market and manufacture the Stormceptor System in the United States and Australia. Several thousand Stermceptor Systems have been installed in various locations throughout worth America. Australia and the Caribbean since L990. In the Stotmceptor, a fiberglass insert separates the treatment chamber from the by-pass chamber. The different insert designs are illustrated in Figures 1 and 2. These designs are easily distinguishable from the surface once the cover has been removed. There are four versions of the in-line disc insert: single inletloutlet, multiple inlet, in-line series insert and submerged designs. In the non-submerged "disc" design you will be able to see the inlet pipe, the drop pipe opening to the lower chamber, the weir, a 6" oil inspection/cleanout pipe, a large 24" riser pipe opening offset on the outlet side of the structure, and the outlet pipe from the unit. The weir will be around the 24" outlet pipe on the multiple inlet disc insert and on large diameter pipe applications. The STC (series) Storrnceptors consist of two chambers comprised of similar fiberglass inserts. These units also contain a 6" oiUinspection cleanout pipe and 24" outlet riser pipes. The submerged disc insert has a higher weir and a second inlet drop pipe. In the inlet design you will be able to see an inlet drop pipe and an outlet riser pipe as well as a central oil inspection/cleanout port. Stormcepror' Storm Water Easement and Maintenance Agreement Page 19 of 28 2. Stares torrsten D erp ativn. The Stormceptor consists of a lower treatment chamber, which is:always full of water; and aby-pass chamber. Storm water flows into the by-pass chamber via the storm sewer pipe or. grated inlet (Inlet Stormceptor). Normal flows are diverted by a .weir and drop arrangement into a treatment chamber. Water flows up through the submerged outlet pipe based on the head at the inlet weir.and ,is discharged back. into the by-pass chamber downstream of the weir. The downstream section of the pipe is connected to the outlet sewer pipe. Oil and other liquids with a specific gravity less than water rise in the treatment chamber and beeoine trapped under the fiberglass weir. Sediment will.settle to the•bottom of the chamber by gravity. The circular design of the treatment chamber is critical to prevent turbulent eddy currents and to promote settling; During infrequent high flow conditions: storm water will by-pass the weir and be conveyed to the outlet sewer directly: The by-pass is an integral part of the Stotmceptor since other oil/grit separators have been noted to scour during high flow conditions (Schueler and Shepp, 1.993). For further details.ple.ase refer'io The Srormec ptor Systein Technical Manual. The key benefits of Stormceptor include: • Capable of removing more than-80% of the total sedimenrload. when properly applied as, a source control for small drainage areas • Removes free oil from storm water during normal flow. conditions • Will not scour or resuspend trapped pollutants • Ideal spill control device for commercial and industrial developments • Vertical. orientation facilitates maintenance and :inspections 3. Iden4fccation of StormcgRtor All In-Line. (including Submerged) Stormceptors are provided.with their own frame 'and, cover. The cover has the name STOR ICEPTOR dearly embossed on it to allow easy identification of the unit. The name Stormceptor is not embossed. on the inlet models due to the variability of inlet. grates used/approved across North America. You will be able to:identify the Inlet Stormceptor by looking into the grate since the insert will be visible: Once you have located a unit, there still may be .a question as to the size of the unit. Comparing the measured depth from the water level (bottom of insert) to the bottom. of the. tank with Table.l should help determine the'size of the unit. Stormceptor4 Storm Water Easement and Maintenance Agreement Page 20 of 28 Table]. Stormceptor Dimensions* Model Pipe Invert to Top.of Base Slab 4501 60" 900 55" 1200 71" 1800 105" 2400 94" 3600 134" 4800 128" 6000 150" 7200 1.34" 110005 128"** 13000s 150"** 16000s 134"** "Depths are approximate. Depths per structure Start'rn- in 1996, a metal serial number tag has been affixed to the fiberglass insert. If the unit does. not have a serial number, or if there is any uncertainty regarding the size of the Stormceptor using depth measurements. please contact the Rinker Materials~Storntceptor information line at (800) 909=7763 for assistance. 4. Stonnceptor Maintenance Guidelines The performance of all storm water quality measures that rely on sedimentation decreases as they fill with sediment (see Table 2 for Stormceptor capacities). An estimate of performance loss can be made from the relationship between performance and storage volume. Rinker Materials recommends maintenance be performed when the sediment volume in the unit reaches 15% of the total storage. This recommendation is based on several factors: Sediment removal is easier when removed on a regular basis (as sediment builds up it compacts and solidifies making maintenance more difficult). Development of a routine maintenance interval helps ensure a regular maintenance schedule is followed. Although the frequency of maintenance will depend on site conditions, it is estimated that annual maintenance will be required for most applications; annual maintenance is a routine occurrence which is easy to plan for and remember. A minimal performance degradation due to sediment build-up can occur. In the event of any hazardous material spill, Rinker Materials recommends maintenance be performed immediately. Maintenance should be performed by a licensed liquid waste hauler. You should also notify the appropriate regulatory agencies as required. Stormceptorr Storm Water Easement and Maintenance Agreement Page 21 of 28 Table l, Stormeeptor Capacit ies Model Sediment Capacity W (L) Oil Capacity US gal (L) Total Holding Capacity US gal (L) 4501 45 (1276) 86 (326) 470 (1779) 900: 75 (2135) 251 (950) 952 (3604) 1200 113 (3202 251 (950 1234 4671) .1800 193 (5476) 251 (950) 1833 (6939), 2400 155 (4387) 840. (3180) 2462 (9320). .3600 323 (9134) 840 (3180) 3715 (14063) 4800 465 (01.58) 909 (3441) 5059 (19150) 6000 609 (17230 909 344.1) 6136 (23227) 7200 726 (20551) 1059 (4009) 7420 (28088) 110005 942 `(26687) 2797 (10588)- 11,194 (42374) 13000s 1230 (34841 2797 (10588 13348 50528) 16000s 1470 (41632) 3055 (11564) 15918 (60256) 4.1 Recommetuled Maintenance Procedure; For the "disc" desisn, oil is removed through the 6" inspection/cleanout pipe and sediment is removed through the 24" diameter outlet.riser pipe. Alternatively, oil could be removed from'the 24" opening if water is removed from the treatment chamber, lowering the oil level below the drop. pipes. The depth of sediment can be measured from the surface of the Stortnceptor with a dipstick tube equipped with a ball valve (Sludge Judge°). It is recommended.that maintenance be`performed once the sediment depth.exceeds-the guideline values provided in Table 3 for the reasons noted in Seotion 4 Stormceptor Maintenance Guidelines. Table 3. Sediment Depths Indicating Required Maintenance Model Sediment Depth 4501 8" 200 mm 900 8" (200 mm) 1200 10" (250 mm) 1.800 15" (375 mm 2400 12" (300 min) 3600 17" (425 mm) 4800 15" (375 mm) 6000 18" (450 mm) 7200 15" (375 mm) I I000s 15" 375 mm)** 13000s 18" (375 mm)** 16000s 1.5`" (375 rnm)*- * Depths are approximate. In each structure. Stormceptoi4 Storm Water Easement and Maintenance Agreement Page 22 of 28 No entry into the unit is required for routine maintenance of the Inlet Stormceptor or the smaller disc insert models of the In-Line Stormeeptor. Entry to the level of the disc insert may be required for servicing the larger disc insert models. Any potential obstructions at the inlet can be observed from the surface. The fiberglass insert has been designed as a platform for authorized maintenance personnel, in the.event that an obstruction needs to be removed, sewer flushing needs to be performed, or camera surveys are required. Typically, maintenance is performed by the Vacuum Service Industry, a well established sector of the service industry that cleans underground tanks, sewers, and catch-basins. Costs to clean a Stormceptor will vary based on the size of the unit and transportation distances. If you need assistance for cleaning a Stormceptor unit, contact your local Rinker Materials representative, or the Stormceptor Information Line at (800) 909-7763. Figures 1 and 2 will help illustrate the access point for routine maintenance of Stormceptor. Sediment & oil Oil removal can be removal can be performed by vacuum track pcrfonnrd by vacuums through the oiUnspection pon Y i I^^ Disc Insert concrete stormceptor e: Figure 1 Single Inlet/Outlet "Disc" Insert In-Line Stormceptor Inlet Grare Oil Pon Inlet Insert Removable Tee mainrenancc Figure 2 STC 450i Inlet Stormceptor Stormcepror`s Storm Water Easement and Maintenance Agreement. Page 23 of 28 4.2 .Disposal of Trapped Material from Stormceptor The requirements for the disposal of material from Stormceptor are similar to that of any other Best Management Practices (BMP). Local guidelines should be consulted prior to disposal of the separator contents. Iti.most areas the sediment, once dewatered; can be disposed'of in a sanitary landfill. It is not anticipated that the sediment would be classified as haiardous waste. In some areas, mixing the water with the sediment will create a slurry that. can be: discharged into a trunk sanitary sewer. In all disposal options, approval from the disposal facility operator/agency is required. Petroleum waste products collected in Stormceptor (oil/chemical/fuel spills) should be removed by a licensed waste management:company. 'hat if I see an oil rainbow or sheen at the.Stormceptor outlet" With a steady influx .of water with high concentrations of oil, a sheen may be'noticeable at:the Stormceptor outlet. This may occur because a rainbow or:sheen can be seen at very small oil concen- trations 10 ppm). Stormceptor will remove over 95% of all free oil and the-appearance of a sheen at the outlet with high influent oil concentrations..does not mean that the unit is not working to this, level of removal: In addition, if the influent oil is. emulsified, the Stormceptor will not be able to remove it. The Stormceptor is designed for free oil removal and not emulsified or dissolved oil conditions. 5.0 Recommended Safety,, Procedures Rinker Materials strongly recommends that any person who enters a Stormceptor System follow all applicable OSHA regulations for entry in permit required confined spaces, as outlined in 29 CFR 1910.146.. A permit required confined space consists of a space that: Is large enough and so configured that an'employee can bodily enter and perfornii assigned work. • 'Has limited or restricted means for entry and exit. • Is not designed for continuous employee occupancy. • Contains, or has one of the following: - a potential to:contaiit a hazardous atmosphere. -.a material that has the potential for engulfing an.entran,t.: - any:other recognized serious safety hazard. Storm water and wastewater systems fall under OSHA guidelines for a permit required confined. space. Failure to follow OSHA guidelines for entry and work in a permit required confined. space can result in serious injury or death. Please exercise extreme caution and follow appropriate safety procedures when entering any confined space. Two square pick holes in the cover vent the. Stormceptor, allow for.removal of the cover, and provide sampling ports for air quality monitoring before the cover is removed. If you must enter the Stormceptor, please note that if the disc insert inside is wet, it can be slippery. Stormceproe Storm Water Easement and Maintenance Agreement Page 24 of 28 Recognizing that every work site is different, the responsibility for safety falls on the contractor. The contractor must ensure that all employees and subcontractors follow established safety procedures and OSHA regulations for working in and around permit required confined spaces as well as for any other safety hazard that may be present on that particular site. 6.0 Stormceptor Monitoring Protocol. If monitoring of your Stormceptor System is required. we recommend you follow the procedures outlined below by the Rinker tMaterials Stormceptor office. If you have any questions regarding monitoring please contact the Rinker Materials Stotmceptor Technical Director at (800) 909-7763. 6.1 Pollutants to be Monitored Table 4 indicates the pollutants to be monitored during the storm events and the minimum acceptable detection limit for each pollutant to be analyzed. Approved federal or state laboratory analysis methodologies are to be used for the analysis. The optional metals indicated in Table 4 refer to the Resource Conservation Recovery Act and may be covered by a generic metals scan. Bacteria monitoring will not be required unless explicitly requested elsewhere. Two sediment samples are to be extracted from the monitored Stormceptor at the end of the study and analyzed for the particle size distribution and water content. A minimum of 8 U.S. Sieve sizes is to be used to determine the particle size distribution. Sieves that are used must include. but are not limited to 35, 60. 100, 140. 200. 270 and 400. Three clay particle sizes must be.analyzed to denote panicle sizes between 5 and 25 pni. The panicle size distributions should be plotted on a standard grain size distribution graph. Stortnceptoe Storm Water Easement and Maintenance Agreement Page 25 of 28 Copper {Cu) 0.001 mg/1 ° only if explicitly requested in Terms of Reference. 6.2 Monitoring Methodology the: following monitoring protocol should be followed to ensure reasonable monitoring results and interpretation: . Monitoring protocols should conform to. EPA 40. CFR Part 136. • The EPA guideline of 72 hours:dry.period prior to a monitoring event should be used. This will ensure that there is sufficient pollutant build-up available for wash-off.duri.ng the monitored event. Flow proportional monitoring must be conducted for the parameters'indicated in Table 1.. Samples should be analyzed separately for the first flush versus the remainder of the storm event. Monitoring need not extend longer than an 8;hour, period after the start of the storm event: (composite). • Sediment sampling. (measuring. the sediment depth in the unit at the beginning and end of the monitoring period) must: be conducted. The water content of the sediment layer must be analyzed to determine the dry volume of suspended solids. Sediment depth sampling will indicate. the rate of pollution accumulation in the unit, provide confirmation that the unit is not scouring and confirm.the flow proportional monitoring results. Amass balance using the sediment sampling should be calculated to validate the flow proportional samplin,. Stormceproe Storm Water Easement and Maintenance Agreement Page 26 of 28 Table 4. Monitoring Pollutants. Pollutant Minimum Detection MLimit' DL Total Suspended Solids {TSS S mJl Total Phos horus.(P) 0.02 mall Total. K'eldahl Nitrogen TKN 0.1 mo Cadmium Cd 0.005 me/l. Lead (Pb) 0.05 rfmQll Zinc (Zn) O.OI .tng/1. Chromium.(Cr) 0.01 mgll Total Petroleum Hydrocarbons {TPH) 1 mg/1 Conductivity O.I itmholcm Fecal Coli.form* 1/.100 ml Additional Metals {optional} Arsenic (As) 0.005 mg/( Barium {Ba) 0.01 mgll Mercury (Hg) 0.0005 mall Selenium (Se) 0.005 mg/1 Silver (AW) 0.01 rng/1 • Grab sampling (just taking samples at the inlet and outlet) is an unacceptable methodology for testing the performance of.the Stormceptor during wet weather conditions unless it is flow weighted (flow weighted composite sample from numerous grab samples) over the entire storm. • The oil containment area underneath the insert should be inspected via the vent pipe for dry weather spills capture once a month during the monitoring period since the flow rate of a dry weather spill may not trigger the automated samplers. • A tipping bucket rain gauge should be installed on-site to record the distribution of storm intensities and rainfall volume during the monitored events. • Results that are within the laboratory eror (both inlet and outlet) or are representative of relatively clean water should be discarded. Typical concentrations of pollutants in storm water are: TSS 100 mg/L Total P 0.33 mg/L TKN 1.50 mg/L Total Cu 34 pg1L Total Pb 144 pg/L Total Zn 160 pg/L A threshold first flush/composite TSS value of 50 mg/L at the inlet to the Stormceptor should be used as the lower limit of an acceptable storm for reporting event efficiency. Monitoring results where the influent TSS concentration is less than 50 mg/L should only be used in mass load removal calculations over the entire monitoring period with other storms where the influent concentration is greater than 50 mg/L. The results should not be analyzed if the influent TSS concentrations during all monitored storms.are less than 50 mg/L. Storms where the influent TSS concentration is less than 10 mg/L should be discarded from all analyses. • A threshold storm event volume equal to 1.5 times the storage volume of the Stormceptor being monitored should be used as the lower limit of an acceptable storm for monitoring. • Sampling at the outlet of the Stormceptor should be conducted within the 24" outlet riser pipe to accurately define event performance: • The personnel monitoring the Stormceptor should record incidental information in a log file. Information such as weather, site conditions, inspection and maintenance information, monitoring equipment failure, etc. provide valuable information that can explain anomalous results. • Laboratory results of monitored samples should be analyzed within 10 days of being submitted to the lab. • Weekly inspections of the sampling tubes, flow meter, rain gauge, and quality samplers should be conducted to ensure proper operation of the monitoring equipment. Debris and sediment that collects around the sampling intakes should be cleaned after each event. • During the installation of automated quality samplers, care should be exercised to ensure that representative samples will be extracted (placement of intakes, ensuring that tubing is not constricted or crimped). • Sampling should be conducted for a minimum of 6 storms. Ideally 15 storms should be sampled if the budget allows. Stormcepror" Storm Water Easement and Maintenance Agreement Page 27 of 28 Call the Stotmceptor Information Line (800-909-7763) for more.detailed informa- tion and test results. TBCtA m guaw7lott Stomiceptoi" CD ROM • Storniceptor Technical Manual • Stormceptor Installation Guide. Stormceptor Brochure TEST RMTS. STEP Report (Independent Verification) • University of Coventry Study • _ETV Canada (Federal Verification) • National Water Research Institute Test • Westwood, MA. Field Monitoring Study • Edmontoa,.Canada.Field Monitoring Study • Seattle Field Monitoring • Como Park, MN.Field Monitoring. Study • Florida Atlantic University Submerged Stacmceptor Testing • Qil Removal Field Validation Sludge.Analyses and Particle Size Analysis Rh2k x Hydro Conduit Division Hydro.:.C,onduit Division 6560 Langfield Rd., Bldg. 3 Houston, TX 77092 Phone: 832-590-5300 Fax: 832-590=5399 Toll Free: 800-909-7763 %vivwAnkerstorrttceptor corn Storm Water Easement and Maintenance Agreement Page 28 of 28