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Home My WebLink AboutApplication APPLICANT 1/14/2022 (2)STORMWATER MANAGEMENT OPERATIONS AND MAINTENANCE PLAN PARCEL #1 Deadmond Ferry Multi -Family Housing Springfield, OR BEI Project 20-577 E"N"GINEERING= Since 1977 civil • transportation structural - geotechnical SURVEYING www.Branch Engi neering.conn For Mike O'Connell O'Connell & Associates 84936 Peaceful Valley Road Eugene, Oregon 97405 CC: Rick Satre The Satre Group 375 West 411 Ave., Suite 201 Eugene, OR 97401 December 22nd , 2021 310 5th Street Springfield, OR 97477 p: 541.746.0637 f: 541.746.0389 TECHNICAL MEMORANDUM \ranch ENGINEERING SmNe 1979 DATE: December 22n', 2021 PROJECT: Deadmond Ferry Multi -Family Housing Project Stormwater Operations & Maintenance Plan TO: Mike O'Connell O'Connell & Associates 84936 Peaceful Valley Road Eugene, Oregon 97405 CC: Rick Satre The Satre Group 375 West 4" Ave., Suite 201 Eugene, OR 97401 City of Springfield ATTN: Kyle Greene FROM: Nathan Patterson, P.E. Branch Engineering RE: Stormwater Operations & Maintenance Plan for Deadmond Ferry Project (Parcel #1) Branch Project#: 20-517 This stormwater management operations and maintenance plan was prepared for the Deadmond Ferry development in Springfield, Oregon for the improvements south of Deadmond Ferry- Road located at 287 Deadmond Ferry Road. City- of Springfield regulations requires a stormwater management system operations and maintenance plan. The stormwater management syslem includes infiltration rain gardens and other miscellaneous conveyance infrastructure. The various facilities operation and maintenance logs and schedule have been included in the appendices. The Appendices includes the following items: APPENDIX A: Notice of Operations and Maintenance Agreement Legal Description APPENDIX B: • Operations & Maintenance Agreement .• Site Review Utility Plan APPENDIX C: Rain Garden Operation and Maintenance Plan r Stormwater Management Facility Inspection & Maintenance Log EUGENE -SPRINGFIELD CORVALLIS-PHILOMATH 310 Stn Street, Springfield, OR 97477 1 p: 541.746.0637 1 f: 541.746.0389 1 w . branchengi neeri ng.com Operations R Maintenance Plan (20-517) December 22, 2021 The following are instructions for these documents DOCUMENT INSTRUCTIONS Appendix A- Notice of Operations & Maintenance Agreement The Notice of O&M Agreement identifies the property as having stormwater management facilities onthe property and identifies the financial method used to cover future operations and maintenance. The Notice of O&M Agreement must be completed and then recorded at Lane County Deeds and Records. Signatures on the Notice shall be notarized. the Notice may be submitted in person or mailed, along with payment of the applicable fees, to the County Recorder's Office, Lane County Deeds and Records, 125 E. 8th Avenue, Eugene, OR 97401, http://%vl .co.Iane.or.us/AT_PropRec/default.htm. The property description on the Notice must be a full legal description of the property and may not be a tax lot number. Legal descriptions may be obtained from the county assessor's office. This Notice shall be printed on legal -sized (8 'h x 14) paper to facilitate the recording process. if printed on smaller paper, additional recording fees may apply. Appendix IF Operations & Maintenance Agreement The completed Form must identify the owner's name, address, and phone number, the site address, financial method used to cover future operation and maintenance, and parties responsible for inspecting and maintaining the facility. The Operations & Maintenance Agreement does not need to be recorded. A copy of the stormwater management site plan shall be attached to the Operations & Maintenance Agreement. The plan, approved as part of the permit for development, must show the location of the facility on the site, the sources of runoff entering the facility, and the ultimate stormwater destination. Appendix C- Stormwater Management Facility Inspection and Maintenance Log Stormwater management facility inspection and maintenance logs must be kept on file by facility owners. Logs should note all inspection dates, the facility components that were inspected, and any maintenance or repairs made. The facility -specific O&M plans can serve as a checklist for what should be included in the log (e.g. the facility elements that need to be inspected, frequency of inspection, conditions that indicate maintenance is needed, etc.) BRANCH ENGINEERING, INC. APPENDIX A NOTICE OF OPERATIONS & MAINTENANCE AGREEMENT EXHIBIT A: LEGAL DESCRIPTION Notice of Operations and Maintenance Agreement Private Stormwater Management and Treatment System The undersigned owner(s), is hereby given notice that stormwater runoff from the "Property" described below requires stormwater management facilities to be located, designed, and constructed in compliance with the City of Springfield's Engineering Design and Procedures Manual. Said facilities shall be operated and maintained in accordance with the Operations and Maintenance Agreement (O&M Agreement) on file with the City of Springfield, Development and Public Works Department. (Property Owner/Developer) acknowledges and agrees to maintain private stormwater treatment facilities listed in this document. The maintenance of the stonnwater facilities listed in this document is required as part of the Development Agreement with the City of Springfield. This facility will be operated and maintained in accordance with the requirements stated in this document and in the latest edition of the City of Springfield Engineering Design Standards and Procedures Manual, Chapter 3. The City reserves the right to enter and inspect any stormwater facility located on the "Property" to ensure the facilities are operating as designed. Failure of the responsible party to inspect and maintain the facilities can result in an adverse impact to the public stormwater system and the quality of receiving waters. The requirement to operate and maintain the stormwater treatment facilities in accordance with the approved site development agreement and the site O&M Agreement is binding on all current and future owners of the property. The Agreement and its O&M Plan may be modified under written consent of new owners with written approval by and re -filing with the City. The O&M Agreement and O&M Plan for facilities constructed pursuant to this notice are available at the Development and Public Works Department, 225 Fifth St, Springfield Oregon, or call (541)-736-3753, between the hours of 8 a.m. and 5 p. in., Monday through Friday. The Subject premises, is legally described as follows: (Tax hanumber cannot be used to describe the property. Legal descriptions may be obhrined from the county assessors ofree). SEE EX1I1B1T "A" A'19'ACHED HERETO AND INCORPORATED HEREIN BY REFERRNCF. By signing below, the signer accepts and agrees to the terms and conditions contained in the Operations and Maintenance Plan and in any documents attached. This instrument is intended to be binding upon the parties hereto, their heirs, successors, and assigns. In Witness whereof, the undersigned has executed this instrument on this day of , 20 Owncr(s): Signature Print Name STATE OF OREGON, County of Lane, F1 This instrument as acknowledged before me on by described premises. ❑ This instrument as acknowledged before me on by as of premises. Notary Pubic for Oregon RETURN TO: CITY OF SPRINGFIELD DEVELOPMENT & PUBLIC WORKS DEPT. 225 FIFTH ST. SPRINGFIELD, OREGON 97477 owner(s) of the above owners) of the above described My Commission Expires RESERVE THIS SPACE FOR RECORDING STICKER **Avoid $20 nonstandard doc FEE (font too small)... Print this form on Legal size paper.** Appendix 3A-1 ]u,01/27/17 Page 1 of 1 EDSP Adopted December 03 2012 NIranch ENGINEERING_ gwe39„ December 7, 2021 "EXHIBIT A' -LEGAL DESCRIPTION TM 17-03-15-40 TL 01800 Branch Engineering Inc. Project No. 20-517 Parcel l of Land Partition Plat No. 2022-P as platted and recorded in the Lane County Partition Plat Records in Lane County, Oregon, EUGENE -SPRINGFIELD 310 5th Street, Springfield, OR 97477 1 p: 541.746.0637 1 �. branch a ngi neeri ng. corn APPENDIX B OPERATIONS & MAINTENANCE AGREEMENT UTILITY PLAN Operations and Maintenance Agreement Private Stormwater Management and Treatment System Land Development Application Number: 811-21-000230-TYP2 Owner's Name: MIKE O'CONNELL (O'CONNELL & ASSOCIATES) Phone No.: 541-953-7332 Mailing Address: 84936 PEACEFUL VALLEY ROAD City EUGENE State OR Zip 97405 Site Map and Tax tot Type of Facihty(ies)_ State OR Zip 97477 than one Int) Requirements 1) Stoanwater Management Site Plan, (min. 8 1/2"x 11" attached to this form) showing the location of the facility(ies) in relation to building structures or other permanent monuments on the site, sources of runoff entering the fscihty(ies), and where stormwater will be discharged to after leaving the facility(ies). Iandscape and vegetation should be clear on the Plan submitted or submit a separate Landscape Plan document showing vegetation type, location, and quantity (landscape plan). These can be the same Plans submitted for development review. The stomawater management facility(ies) shown on the Site Plan are a required condition of development approval for the identified property. The owner of the identified property is required to operate and maintain the facility(ies) in accordance with the Facility Specific Operation and Maintenance Plans) (O&M Plan(s)) attached to this form and on file with the City. The O&M Plan for the facility(ies) will be available at the Development and Public Works Department, 225 5' Street, Springfield, Oregon between the hours of 8 a.m. and 5 p.m., Monday through Friday. 2) Financially responsible parry (circle one): Property Owner Homeowner Association Other (describe) 3) Party(ies) responsible for maintenance (only if other than owner). Daytime phone no. Emergency/after-hours contact phone no. Maintenance Contact Party(ies) Name & Business Address: 4) Maintenance practices and schedule for the stormwater facility(ies) are included in the Facility Specific O&M Plan(s) attached to this form and filed with the Development and Public Works Department, City of Springfield. The operation and maintenance practices are based on the version of the City of Eugene's Stormwatcr Management Manual in effect at the date of development application, as modified by any plans attached to this document at the time of signing. Application Date: By signing below, Filer accepts and agrees to the terms and conditions contained in the Operations and Maintenance Plan(s) and in any document executed by Filer and recorded with it. Filer Signature: Print Name: Appendix 3A-2 Rev01i2e/16 Page 1. of 1 EDSP Adopted December 03, 2012 CONSTRUCTION NOTES AAL w C,Ui) = xsN_ . N . sue "I AUDIT EZEcmlcu "'A, awmw�_ s.GGrRw .SrRRGe <.o TRElxxnro wml s x o. 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III [S..-11rF.r 1 — III o _" SxINGrlm IE IAMa1IR,RxPH N DOLLNOW s GU1ANL� 1- G�aIA,E PA,„ =aRS OALLU s IAL_ AL a r R NONF s 200520 sD ruRxrs, ANY ws EI11 1 NET11 1, 111 cz sazFLANNIN All IIIALLELT LI Ca s. AAL .: G TAIVNS WTW N;Erurl. UNIAND r4.Ac N w< OMAN 1-1 cL.LAr IN a STA.,.D so nrm�NING. IN, TUR I.A.P. All E 5 FOR x LocA.Tgn. IIAL SHELF 11 LS� w1 LIEVNuss T. NLAU 1 INS 'III' 02I"I _ITALL API MIT INCEI RMLAT 0= MIN FINE AW'CS OTALSItt NOTED A PINSI SINUF O LIONLY All rt P 11 - xG' 1. AONLAAAL IL4WIIr5 Wr RNNfm[a. run�AND INSTILL q � 1111 ASIAN .4 ONMtlSM ANY MLW IXNL [WN&W.1—ITS — SHEIT CD IIIAI,ID—I NI%a1. DRAD RGII OALUUI LIA. I1.11Ul.1, — I 'INITIATED PIPC.F111.11N IN DA4II41I ISO, SEE "LNI SIE �N H... SIGN (5'Wa]D, . c ', z� "'IPE GNRENES IN YE "IS 1110H AT INS412 COLINEALF ENISTi..1 YTWNSPYUIS R ANY AD7NTAL MURr Ta''ANIAN TT SJixAGE III DNYER u4lnwAv. FSA All AND ALL DS1 MAIN ADIT AS .. ST ONE FITATTAT . 11. FLA INALF 11 NO oreYPrvrvro ro — LOTS NOTED FAIN LAT SINAN ON IS �l AIE 1., .1 11—Ol Arc x1.1 A. wxwADIALI 1INIATIND L ALAII LA. FLATS 1. INAND, SAFLCW ULAE O Rxlsx AVno nsnu� wro THEcuRY PER cnv Cr SPRINLHF.D 5➢NWRD CETAi S& �sT^anmArmxA sKnvN olOno rtv,� E III AIDE11 ANSI O r onmx(]'Nk]Y,Y,. LINE Ox0EF5mC Or RP WV WHO z12 UCL 12, 2021 'E=NGINEERING- TH n ne,. NBP F M,NR.eYwc. a .l rmArm1. LANAINUU ARA— J O NR.NSX ANY WSINL.44W Yr 1 NUT PER SOFN ILI [Tzev. L DIADIN roux .T FACSNY PER cTr AT ERGINE soRuwArER AuucLl.exr Aaxua ANN rrxt 10 wv�vLID m=_1ITT LLJ� 42fi E ADIE55. I nSAUST ADS 1. A No 11 1 �r ` Y� ti \ \ -TALL e reA:XwA ro ErvSArez ]IoaAwA.LN DAN ONLY cow Wss, roxSTURAGE ALSO IN .IAA wreoEx. IT ASTLI p w h LLQ TT O OUT «Uso °z z 400 4GI N'. '\\ \ 0 O 0 Z 122 G z12 UCL 12, 2021 'E=NGINEERING- TH n ne,. NBP F 20.517 a .l -- —t-- -- —— _ -- —— ,bl J ILI G Al _AT 214 zn I, DEA MOND FERRY RD J . ; ws 11 SO, T fiPIN�H I DNA ,G5 = vyglr�en Eft ,:1-T,,.122 �- A r em. UCL 12, 2021 TH n ne,. NBP F 20.517 \ \, 0 ITT- J ; 4Iz zYE GRaPX,.G SCALE L H u wv�vLID m=_1ITT LLJ� 4a6211 102 .[•N..y +., ,anm '✓' �r Y� ti \ \ z� p w h LLQ TT O OUT «Uso °z z 400 4GI N'. '\\ \ 0 O 0 Z 122 G ASS, ..,\` L.i Aro \\A,Lu ( —• 12S / �\ 411 ALL \�[/1Plsiln, IS - N em. UCL 12, 2021 TH n ne,. NBP INI",. 20.517 UTILITY PLAN APPENDIX C SOAKAGE TRENCH OPERATIONS & MAINTENANCE PLAN STORMWATER MANAGEMENT FACILITY INSPECTION & MAINTENANCE LOG 4.5.14 Soakage Trench O & M Plan Soakage Trenches are infiltrating flood control devices. Soakage Trenches are linear excavations backfilled with sand and gravel injecting stormwater runoff into the ground recharging groundwater. There are various components within the system - inlet piping, aggregate storage basin and perforated piping. The trench surface may be covered with grating, stone, sand, or a grassed cover with a surface inlet and may also be installed under hard surfaces such as driveways. All facility components, vegetation, and source controls shall be inspected for proper operations and structural stability. These inspections shall occur, at a minimum, quarterly for the first two years from the date of installation, then two times per year afterwards, or within 48 hours after each major storm. Training and/or Written Guidance information for operating and maintaining Soakage Trenches shall be provided to all property owners and tenants. A copy of the 0 & M Plan shall be provided to all property owners and tenants. Inspection Logs shall be kept by the facility owner demonstrating the following items have been inspected and are being maintained properly: • Access to the Soakage Trench shall be safe and efficient. Obstacles preventing maintenance personnel and/or equipment access to the components of the facility shall be removed. • Algae Growth located on top of the soakage trench should be removed and disposed of properly. • Debris/Sediment that is found to clog the pipe shall be removed and disposed of in accordance with applicable federal and state requirements. • Failing Soakage Trenches shall be repaired and/or replaced if water is noticed on top of trench within 48 hours of a major storm. • Piping shall be cleared of sediment and debris to maintain conveyance. If piping is clear of sediment and debris and yet conveyance is poorly maintained, fabric around the pipe shall need replacing. • Shut -Off Valve or Flow -Blocking Mechanism may have been required with the construction of the drywell to temporarily prevent stormwater from flowing into it, in the event of an accidental toxic material spill. This may also involve mats kept on- site that can be used to cover inlet drains in parking lots. The shut-off valve shall remain in good working order, or if mats or other flow -blocking mechanisms are used, they shall be kept in stock on-site. • Sediment in the aggregate obstructing storage and infiltration shall be excavated and replaced. • Vegetation such as trees should not be located in or around the soakage trench because roots from trees can penetrate the unit body, and leaves from deciduous Stormwater Management Manual 4-33 Eugene 2014 trees and shrubs can increase the risk of clogging the intake pipe. Large shrubs or trees that are likely to interfere with operation will be identified at each inspection and removed. Spill Prevention Measures shall be exercised on site when handling substances that contaminate stormwater. Releases of pollutants shall be corrected as soon as identified. Non -Chemical Pest Control measures shall be taken to prevent development of insects, mosquitoes, and rodents. Stormwater Management Manual 4-34 Eugene 2014 STORMWATER MANAGEMENT FACILITY INSPECTION AND MAINTENANCE LOG Property Address: Inspection Date: Inspection Time: Inspected B : Approximate Date/Time of Last Rainfall: Type of Stormwater Management Facility: Location of Facility on Site (In relation to buildings or other permanent structures): Water levels and observations (Oil sheen, smell, turbidity, etc.): Sediment accumulation and record of sediment removal: Condition of vegetation (Height, survival rates, invasive species present, etc.) and record of replacement and management (mowing, weeding, etc.): Condition of physical properties such as inlets, outlets, piping, fences, irrigation facilities, and side slopes. Record damaged items and replacement activities: Presence of insects or vectors. Record control activities: Identify safety hazards present. Record resolution activities: Appendix 3A-3 Page 1 of 1 EDSP Adopted December 03, 2012 STORMWATER MANAGEMENT OPERATIONS AND MAINTENANCE PLAN PARCEL #2 Deadmond Ferry Multi -Family Housing Springfield, OR BEI Project 20-577 For Mike O'Connell O'Connell & Associates 84936 Peaceful Valley Road Eugene, Oregon 97405 CC: Rick Satre The Satre Group 375 West 411 Ave., Suite 201 Eugene, OR 97401 ISr_ancn December 22nd , 2021 `E'N�GINEERING-- Since 1977 civil - transportation 3105th Street structural - geotechnical S U R V E Y I N G Springfield, OR 7 p: 541.746.063.0637 www.Rranch Engineenng.com E 541.746.0389 TECHNICAL MEMORANDUMle6r,anch NEERING= si-11" DATE: December 22n1, 2021 , PROJECT: Deadmond Ferry Multi -Family Housing Project Stormwater Operations & Maintenance Plan TO: Mike O'Connell O'Connell & Associates 84936 Peaceful Valley Road Eugene, Oregon 97405 CC: Rick Satre The Satre Group 375 West 4'h Ave., Suite 201 Eugene, OR 97401 City of Springfield ATTN: Kyle Greene FROM: Nathan Patterson, P.E. Branch Engineering RE: Stormwater Operations & Maintenance Plan for Deadmond Ferry Project (Parcel #2) Branch Project#: 20-517 This stormwater management operations and maintenance plan was prepared for the Deadmond Ferry development in Springfield, Oregon for the improvements south of Deadmond Ferry Road located at 287 Deadmond Ferry Road. City of Springfield regulations requires a stormwater management system operations and maintenance plan. The stormwater management system includes infiltration rain gardens and other miscellaneous conveyance infrastructure. The various facilities operation and maintenance lags and schedule have been included in the appendices. The Appendices includes the following items: APPENDIX A: • Notice of Operations and Maintenance Agreement Legal Description APPENDIX B: Operations & Maintenance Agreement r Site Review Utility Plan APPENDIX C: • Rain Garden Operation and Maintenance Plan Stormwater Management Facility inspection & Maintenance Lag EUGENE -SPRINGFIELD CORVALLIS-PHILONIATH 310 4^ Street, Springfield, OR 97477 1 p: 541.746.0637 1 f: 541.746.0389 1 w .branchengineering.com Operations & Maintenance Plan (20-517) December 22, 2021 The following we instructions for these documents DOCUMENT INSTRUCTIONS Appendix A- Notice of Operations & Maintenance Agreement The Notice of O&M Agreement identifies the property as having stormwater management facilities on the property and identifies the financial method used to cover future operations and maintenance. The Notice of O&M Agreement must be completed and then recorded at Lane County Deeds and Records. Signatures on the Notice shall be notarized. The Notice may be submitted in person or mailed, along with payment of the applicable fees, to the County Recorder's Office, Lane County Deeds and Records, 125 E. 8th Avenue, Eugene, OR 97401, http://www.co.lane.or.us/AT_PropRec/default.htm. The property description on the Notice must be a full legal description of the property and may not be a tax lot number. Legal descriptions may be obtained from the county assessor's office. This Notice shall be printed on legal -sized (8'h x 14) paper to facilitate the recording process. If printed on smaller paper, additional recording fees may apply. Appendix B- Operations & Maintenance Agreement The completed Form must identify the owner's name, address, and phone number, the site address, financial method used to cover future operation and maintenance, and parties responsible for inspecting and maintaining the facility. The Operations & Maintenance Agreement does not need to be recorded. A copy of the stormwater management site plan shall be attached to the Operations & Maintenance Agreement. The plan, approved as part of the permit for development, must show the location of the facility on the site, the sources of runoff entering the facility, and the ultimate stormwater destination. Appendix C- stormwater Management Facility Inspection and Maintenance Log Stormwater management facility inspection and maintenance logs must be kept on file by facility owners. Logs should note all inspection dates, the facility components that were inspected, and any maintenance or repairs made. The facility -specific O&M plans can serve as a checklist for what should be included in the log (e.g. the facility elements that need to be inspected, frequency of inspection, conditions that indicate maintenance is needed, etc.) BRANCH ENGINEERING, INC. APPENDIX A NOTICE OF OPERATIONS & MAINTENANCE AGREEMENT EXHIBIT A: LEGAL DESCRIPTION Notice of Operations and Maintenance Agreement Private Stormwater Management and Treatment System The undersigned owner(s), is hereby given notice that stornewater runoff from the "Property" described below requires stormwatcr management facilities to be located, designed, and constructed in compliance with the City of Springfield's Engineering Design and Procedures Manual. Said facilities shall be operated and maintained in accordance with the Operations and Maintenance Agreement (O&M Agreement) on file with the City of Springfield, Development and Public Works Department. (Property Owner/Developer) acknowledges and agrees to maintain private stortawater treatment facilities listed in this document. The maintenance of the stormwater facilities listed in this document is required as part of the Development Agreement with the City of Springfield. This facility will be operated and maintained in accordance with the requirements stated in this document and in the latest edition of the City of Springfield Engineering Design Standards and Procedures Manual, Chapter 3. The City reserves the right to enter and inspect any stormwater facility located on the `Property" to ensure the facilities are operating as designed. Failure of the responsible party to inspect and maintain the facilities can result in an adverse impact to the public stomrwater system and the quality of receiving waters. The requirement to operate and maintain the stormwater treatment facilities in accordance with the approved site development agreement and the site O&M Agreement is binding on all current and future owners of the property. The Agreement and its O&M Plan may be modified under written consent of new owners with written approval by and re -filing with the City. The O&M Agreement and O&M Plan for facilities constructed pursuant to this notice are available at the Development and Public Works Department, 225 Fifth St, Springfield Oregon, or call (541)-736-3753, between the hours of 9 a.m, and 5 p. m., Monday through Friday. The Subject premises, is legally described as follows: (Tax lot number cannot be used to describe the property. Legal descriptions may be obtainedfrom the county assessor's office). SEE EXB1BIT "A" ATTACHED HERETO AND INCORPORATED HEREIN BY REFERENCE By signing below, the signer accepts and agrees to the terms and conditions contained in the Operations and Maintenance Plan and in any documents attached. This instrument is intended to be binding upon the parties hereto, their heirs, successors, and assigns. In Witness whereof, the undersigned has executed this instrument on this day of 20 Owncr(s): Signature Print Name STATE OF OREGON, County of Lane, This instrument as acknowledged before me owner(s) of the above ❑ This instrument as acknowledged before me on , by as of , owner(s) of the above described premises Notary Public for Oregon My Commission Expires RETURN TO: CITY OF SPRINGFIELD DEVELOPMENT & PUBLIC WORKS DEPT. 225 FIFTH ST. SPRINGFIELD, OREGON 97477 RESERVE THIS SPACE FOR RECORDING STICKER **Avoid $20 non5tand9r Dc FEE (font too small)... Print this form on Legal size paper.** Appendix 3A-1 net 01/27/17 Page 1 of 1 EDSP Adopted December 03. 2012 ranch E'N'GINEERING Sin,, B77 December 7. 2021 °EXMIT A" -LEGAL DESCRIPTION TM 17-03-15-40 TL 01800 Branch Engineering Inc. Project No. 20-517 Parcel l of Land Partition Plat No. 2022-P as platted and recorded in the Lane County Partition Plat Records in Lane County, Oregon. EUGENE-SPRINCRELO 310 5m Street, Springfield, OR 97477 1 , 541.746.0637 1 �.branchengineering.com I_\» :I k I a OPERATIONS & MAINTENANCE AGREEMENT UTILITY PLAN Operations and Maintenance Agreement Private Stormwater Management and Treatment System Land Development Application Number: 811-21-000230-TYP2 Owner's Name: MIKE O'CONNELL (O'CONNELL & ASSOCIATES) Phone No.: 541-953-7332 Mailing Address: 84936 PEACEFUL VALLEY ROAD City EUGENE State OR Zip 97405 Site Address: 287 DEADMOND FERRY ROAD City SPRINGFIELD State OR Lip 97477 _ Site Map and Tax lot Na: TM:17-03-15-40 TL -1800 (Or attach document with additional lot information ifthe facility craso,s more than one lot) Type ofFacilityfes) SOAKAGE TRENCH & RAIN GARDEN Requirements 1) Stormwater Management Site Plan, (min. 8 1/2" x 11" attached to this form) showing the location of the facility(ies) in relation to building structures or other permanent treatments on the site, sources of runoff entering the facility(ies), and where stormwater will be discharged to after leaving the facility(ies). Landscape and vegetation should be clear on the Plan submitted or submit a separate Landscape Plan document showing vegetation type, location, and quantity (landscape plan). These can be the same Plans submitted for development review. The stonnwater management f teility(ies) shown on the Site Plan are a required condition of development approval for the identified property. The owner of the identified property is required to operate and maintain the facility(ies) in accordance with the Facility Specific Operation and Maintenance Plants) (O&M Plan(s)) attached to this form and on file with the City_ The O&M Plan for the facility(ies) will be available at the Development and Public Works Department, 225 5" Street, Springfield, Oregon between the hours of 8 a.m. and 5 p.m., Monday through Friday. 2) Financially responsible party (circle one): Property Owner Homeowner Association Other (describe) 3) Party(ies) responsible for maintenance (only if other than owner). Daytime phone no. ( Emergency/after-hours contact phone no (� Maintenance Contact Party(ies) Name & Business Address: 4) Maintenance practices and schedule for the sturmwater facilAy(ies) are included in the Facility Specific O&M Plan(s) attached to this form and filed with the Development and Public Works Department, City of Springfield. The operation and maintenance practices are based on the version of the City of Eugene's Stormwater Management Manual in effect at the date of development application, as modified by any plans attached to this document at the time of signing. Application Date: By signing below, Filer accepts and agrees to the terms and conditions contained in the Operations and Maintenance Plants) and in any document executed by Filer and recorded with it. 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WNxwL ANO oE,A L .L \ \ �\ UTILITY PIPET 12 1 1 OWAALAL' I" 1' ""Y" "'N 11.1 .1 NN STNANcr AGGEss. 14-�� — •ze �.E• x„'.••. �\ \ \\\ PLAN FPS AS ISIPALLE C211 NILL 6 aucuWASEP vALIF m ENSUFE ETNUWAFP EAN 5111 FLNW 1 NF 10— P rcsEx uxe� r....,°o-,µ "INA 429 4ALL 4 9aIDMA,EA YAR m rnsuaE smeWWASR uN UNLv IOW W6, PJ SNYA GE RGCR IN RNN GAIT. - EAem.' 1 1/ A- PPeN IxantrtR - - PNneRArtv rvn¢ M1ae�. 7 c PNJNS�PEN APPENDIX C RAIN GARDEN & SOAKAGE TRENCH OPERATIONS & MAINTENANCE PLAN STORMWATER MANAGEMENT FACILITY INSPECTION & MAINTENANCE LOG 4.5.7 Rain Garden O & M Plan Rain Gardens are vegetated surface reservoirs used to collect and treat stormwater runoff from impervious surfaces by allowing the pollutants to settle and filter out as the water percolates through vegetation and soil mediums before infiltrating into the ground below or being piped to its downstream destination. Rain Gardens can be used to help fulfill a site's required landscaping area requirement and should be integrated into the overall site design. Numerous design variations of shape and planting scheme can be used to fit the character of a site. The reservoir basin shall infiltrate stormwater within 24 hours. All facility components and vegetation shall be inspected for proper operations and structural stability, at a minimum, quarterly for the first 2 years from the date of installation, 2 times per year thereafter, and within 48 hours after each major storm event. Training and/or Written Guidance information for operating and maintaining vegetated infiltration basins shall be provided to all property owners and tenants. A copy of the 0 & M Plan shall be provided to all property owners and tenants. Inspection Logs shall be kept by the facility owner demonstrating the following items have been inspected and are being maintained properly: • Access to Rain Gardens shall be safe and efficient. Obstacles preventing maintenance personnel and/or equipment access to the components of the facility shall be removed. • Debris and Litter shall be removed to prevent channelization, clogging, and interference with plant growth. Fallen leaves and debris from deciduous plant foliage shall be raked and removed. • Erosion Damage shall be identified and controlled when native soil is exposed or erosion channels are forming. • Grassed Rain Gardens shall be mowed to 4"-9" high and grass clippings shall be removed no less than 2 times per year. • Infiltrating Rain Gardens shall be excavated and cleaned, and gravel or soil shall be replaced to correct low infiltration rates. • Inlets shall be cleared when conveyance capacity is plugged to ensure unrestricted stormwater flow to the rain garden. • Mulch shall be replenished as needed to ensure healthy plant growth. • Nuisance and Prohibited Vegetation from the Eugene Plant List (such as blackberries and English Ivy) shall be removed when discovered. Invasive vegetation contributing up to 25% of vegetation of all species shall be removed and replaced. • Outlets shall be cleared when 50% of the conveyance capacity is plugged. • Overflows shall be cleared when 25% of the conveyance capacity is plugged. Stormwater Management Manual 4-19 Eugene2014 • Rocks or Other Armoring shall be replaced when only one layer of rock exists above native soil. • Sedimentation build-up near or exceeding 2" in depth shall be hand -removed with minimum damage to vegetation using proper erosion control measures. Sediment shall be removed if it is more than 4 inches thick or so thick as to damage or kill vegetation. • Slopes shall be stabilized using appropriate measures when native soil is exposed. • Vegetation shall be healthy and dense enough to provide filtering while protecting underlying soils from erosion. Dead vegetation shall be removed to maintain less than 10% of area coverage or when vegetative filter function is impaired. Vegetation shall be replaced immediately to control erosion where soils are exposed and within 3 months to maintain cover density. Spill Prevention Measures shall be exercised on site when handling substances that contaminate stormwater. Releases of pollutants shall be corrected as soon as identified. Non -Chemical Pest Control measures shall be taken to prevent development of insects, mosquitoes, and rodents. Stormwater Management Manual 4-20 Eugene 2014 4.5.14 Soakage Trench 0 & M Plan Soakage Trenches are infiltrating flood control devices. Soakage Trenches are linear excavations backfilled with sand and gravel injecting stormwater runoff into the ground recharging groundwater. There are various components within the system - inlet piping, aggregate storage basin and perforated piping. The trench surface may be covered with grating, stone, sand, or a grassed cover with a surface inlet and may also be installed under hard surfaces such as driveways. All facility components, vegetation, and source controls shall be inspected for proper operations and structural stability. These inspections shall occur, at a minimum, quarterly for the first two years from the date of installation, then two times per year afterwards, or within 48 hours after each major storm. Training and/or Written Guidance information for operating and maintaining Soakage Trenches shall be provided to all property owners and tenants. A copy of the 0 & M Plan shall be provided to all property owners and tenants. Inspection Logs shall be kept by the facility owner demonstrating the following items have been inspected and are being maintained properly: • Access to the Soakage Trench shall be safe and efficient. Obstacles preventing maintenance personnel and/or equipment access to the components of the facility shall be removed. • Algae Growth located on top of the soakage trench should be removed and disposed of properly. • Debris/Sediment that is found to clog the pipe shall be removed and disposed of in accordance with applicable federal and state requirements. • Failing Soakage Trenches shall be repaired and/or replaced if water is noticed on top of trench within 48 hours of a major storm. • Piping shall be cleared of sediment and debris to maintain conveyance. If piping is clear of sediment and debris and yet conveyance is poorly maintained, fabric around the pipe shall need replacing. • Shut -Off Valve or Flow -Blocking Mechanism may have been required with the construction of the drywell to temporarily prevent stormwater from flowing into it, in the event of an accidental toxic material spill. This may also involve mats kept on- site that can be used to cover inlet drains in parking lots. The shut-off valve shall remain in good working order, or if mats or other flow -blocking mechanisms are used, they shall be kept in stock on-site. • Sediment in the aggregate obstructing storage and infiltration shall be excavated and replaced. • Vegetation such as trees should not be located in or around the soakage trench because roots from trees can penetrate the unit body, and leaves from deciduous Stormwater Management Manual 4-33 Eugene 2014 trees and shrubs can increase the risk of clogging the intake pipe. Large shrubs or trees that are likely to interfere with operation will be identified at each inspection and removed. Spill Prevention Measures shall be exercised on site when handling substances that contaminate stormwater. Releases of pollutants shall be corrected as soon as identified. Non -Chemical Pest Control measures shall be taken to prevent development of insects, mosquitoes, and rodents. Stormwater Management Manual 4-34 Eugene 2014 STORMWATER MANAGEMENT FACILITY INSPECTION AND MAINTENANCE LOG Property Address: Inspection Date: Inspection Time: Inspected By: Approximate Date/Time of Last Rainfall: Type of Stormwater Management Facility: Location of Facility on Site (In relation to buildings or other permanent structures): Water levels and observations (Oil sheen, smell, turbidity, etc.): Sediment accumulation and record of sediment removal: Condition of vegetation (Height, survival rates, invasive species present, etc.) and record of replacement and management (mowing, weeding, etc.): Condition of physical properties such as inlets, outlets, piping, fences, irrigation facilities, and side slopes. Record damaged items and replacement activities: Presence of insects or vectors. Record control activities: Identify safety bazards present. Record resolution activities: Appendix 3A-3 Page 1 of I EDSP Adopted December 03, 2012 APPENDIX C RAIN GARDEN & SOAKAGE TRENCH OPERATIONS & MAINTENANCE PLAN STORMWATER MANAGEMENT FACILITY INSPECTION & MAINTENANCE LOG 4.5.7 Rain Garden 0 & M Plan Rain Gardens are vegetated surface reservoirs used to collect and treat stormwater runoff from impervious surfaces by allowing the pollutants to settle and filter out as the water percolates through vegetation and soil mediums before infiltrating into the ground below or being piped to its downstream destination. Rain Gardens can be used to help fulfill a site's required landscaping area requirement and should be integrated into the overall site design. Numerous design variations of shape and planing scheme can be used to fit the character of a site. The reservoir basin shall infiltrate stormwater within 24 hours. All facility components and vegetation shall be inspected for proper operations and structural stability, at a minimum, quarterly for the first 2 years from the date of installation, 2 times per year thereafter, and within 48 hours after each major storm event. Training and/or Written Guidance information for operating and maintaining vegetated infiltration basins shall be provided to all property owners and tenants. A copy of the 0 & M Plan shall be provided to all property owners and tenants. Inspection Logs shall be kept by the facility owner demonstrating the following items have been inspected and are being maintained properly: • Access to Rain Gardens shall be safe and efficient. Obstacles preventing maintenance personnel and/or equipment access to the components of the facility shall be removed. • Debris and Litter shall be removed to prevent channelization, clogging, and interference with plant growth. Fallen leaves and debris from deciduous plant foliage shall be raked and removed. • Erosion Damage shall be identified and controlled when native soil is exposed or erosion channels are forming. • Grassed Rain Gardens shall be mowed to 4"-9" high and grass clippings shall be removed no less than 2 times per year. • Infiltrating Rain Gardens shall be excavated and cleaned, and gravel or soil shall be replaced to correct low infiltration rates. • Inlets shall be cleared when conveyance capacity is plugged to ensure unrestricted stormwater flow to the rain garden. • Mulch shall be replenished as needed to ensure healthy plant growth. • Nuisance and Prohibited Vegetation from the Eugene Plant List (such as blackberries and English Ivy) shall be removed when discovered. Invasive vegetation contributing up to 25% of vegetation of all species shall be removed and replaced. • Outlets shall be cleared when 50% of the conveyance capacity is plugged. • Overflows shall be cleared when 25% of the conveyance capacity is plugged. Stormwater Management Manual 4-19 Eugene 2014 • Rocks or Other Armoring shall be replaced when only one layer of rock exists above native soil. • Sedimentation build-up near or exceeding 2" in depth shall be hand -removed with minimum damage to vegetation using proper erosion control measures. Sediment shall be removed if it is more than 4 inches thick or so thick as to damage or kill vegetation. • Slopes shall be stabilized using appropriate measures when native soil is exposed. • Vegetation shall be healthy and dense enough to provide filtering while protecting underlying soils from erosion. Dead vegetation shall be removed to maintain less than 10% of area coverage or when vegetative filter function is impaired. Vegetation shall be replaced immediately to control erosion where soils are exposed and within 3 months to maintain cover density. Spill Prevention Measures shall be exercised on site when handling substances that contaminate stormwater. Releases of pollutants shall be corrected as soon as identified. Non -Chemical Pest Control measures shall be taken to prevent development of insects, mosquitoes, and rodents. Stormwater Management Manual 4-20 Eugene2014 4.5.14 Soakage Trench O & M Plan Soakage Trenches are infiltrating flood control devices. Soakage Trenches are linear excavations backfilled with sand and gravel injecting stormwater runoff into the ground recharging groundwater. There are various components within the system - inlet piping, aggregate storage basin and perforated piping. The trench surface may be covered with grating, stone, sand, or a grassed cover with a surface inlet and may also be installed under hard surfaces such as driveways. All facility components, vegetation, and source controls shall be inspected for proper operations and structural stability. These inspections shall occur, at a minimum, quarterly for the first two years from the date of installation, then two times per year afterwards, or within 48 hours after each major storm. Training and/or Written Guidance information for operating and maintaining Soakage Trenches shall be provided to all property owners and tenants. A copy of the 0 & M Plan shall be provided to all property owners and tenants. Inspection Logs shall be kept by the facility owner demonstrating the following items have been inspected and are being maintained properly: • Access to the Soakage Trench shall be safe and efficient. Obstacles preventing maintenance personnel and/or equipment access to the components of the facility shall be removed. • Algae Growth located on top of the soakage trench should be removed and disposed of properly. • Debris/Sediment that is found to clog the pipe shall be removed and disposed of in accordance with applicable federal and state requirements. • Failing Soakage Trenches shall be repaired and/or replaced if water is noticed on top of trench within 48 hours of a major storm. • Piping shall be cleared of sediment and debris to maintain conveyance. If piping is clear of sediment and debris and yet conveyance is poorly maintained, fabric around the pipe shall need replacing. • Shut -Off Valve or Flow -Blocking Mechanism may have been required with the construction of the drywell to temporarily prevent stormwater from flowing into it, in the event of an accidental toxic material spill. This may also involve mats kept on- site that can be used to cover inlet drains in parking lots. The shut-off valve shall remain in good working order, or if mats or other flow -blocking mechanisms are used, they shall be kept in stock on-site. • Sediment in the aggregate obstructing storage and infiltration shall be excavated and replaced. • Vegetation such as trees should not be located in or around the soakage trench because roots from trees can penetrate the unit body, and leaves from deciduous Stormwater Management Manual 4-33 Eugene2014 trees and shrubs can increase the risk of clogging the intake pipe. Large shrubs or trees that are likely to interfere with operation will be identified at each inspection and removed. Spill Prevention Measures shall be exercised on site when handling substances that contaminate stormwater. Releases of pollutants shall be corrected as soon as identified. Non -Chemical Pest Control measures shall be taken to prevent development of insects, mosquitoes, and rodents. Stormwater Management Manual 4-34 Eugene 2014 STORMWATER MANAGEMENT FACILITY INSPECTION AND MAINTENANCE LOG Property Address: Inspection Date: Inspection Time: Inspected By: Approximate Date/Time of Last Rainfall: Type of Stormwater Management Facility: Location of Facility on Site (In relation to buildings or other permanent structures): Water levels and observations (Oil sheen, smell, turbidity, etc.): Sediment accumulation and record of sediment removal: Condition of vegetation (Height, survival rates, invasive species present, etc.) and record of replacement and management (mowing, weeding, etc.): Condition of physical properties such as inlets, outlets, piping, fences, irrigation facilities, and side slopes. Record damaged items and replacement activities: Presence of insects or vectors. Record control activities: Identify safety hazards present. Record resolution activities: Appendix 3A-3 Page 1 of 1 EDSP Adopted December 03, 2012