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Storm Water Management Facilities Maintenance Agreement 2020-0760268RECORDING REQUESTED BY: CITY OF POWAY AND WHEN RECORDED MAIL TO: CITY CLERK CITY OF POWAY P O BOX 789 POWAY, CA 92074 DOC# 2020-0760268 1111111 111111111 11111 1111111111 111 11111 11111 11 1 11111 1111 111 111 Nov 30, 2020 04:59 PM OFFICIAL RECORDS Ernest J. Dronenburg, Jr., SAN DIEGO COUNTY RECORDER FEES: $0.00 (SB2 Atkins: $0.00) PAGES: 42 (THIS SPACE FOR RECORDER'S USE) APN: 323-091-09, -10, -11 STORM WATER MANAGEMENT FACILITIES MAINTENANCE AGREEMENT Vantage Point (G18-0008) The undersigned grantor(s) declares: Documentary Transfer Tax is $ -0- pursuant to R & T Code 11922 (conveyance to a Government Agency) This AGREEMENT for the maintenance and repair of certain Storm Water Management Facilities is entered into between the Property Owner(s) RREEF CPIF KIRKHAM WAY JV, LLC, a Delaware limited liability company, (hereinafter referred to collectively as "OWNER") and the City of Poway (hereinafter referred to as "CITY") for the benefit of the CITY, the OWNER, the successors in interest to the CITY or the OWNER, and the public generally. WHEREAS, OWNER is the owner of certain real property located in the City of Poway, California, more particularly described in Exhibit "A", hereto (hereinafter referred to as the "PROPERTY"), which is being developed into two industrial buildings, in accordance with applications for Development Review 18-004 and Grading Permit Number G18-0008, which are on file with the CITY. This Agreement is required as a condition of approval for such development. WHEREAS, in accordance with the City of Poway's Stormwater Management and Discharge Control Ordinance, Poway Municipal Code, Chapter 13 and 16 (the "Stormwater Ordinance"), the City of Poway Subdivision Ordinance, the City of Poway Zoning Ordinance, the City of Poway Grading Ordinance and/or other ordinances or regulations of CITY which regulate land development and urban runoff, OWNER has proposed that storm water runoff from the PROPERTY be managed by the use of the following Storm Water Management Facilities which are identified as "Best Management Practices" or "BMPs": Biofiltration basins, a dry extended detention basin, street trees, and trash capture devices. The precise location(s) and extent of the BMPs are indicated in the approved Storm Water Quality Management Plan, dated March 25, 2019, and on the approved grading plans on file with CITY's Development Services Department as G18-0008. The manner and standards by which the BMPs must be repaired and maintained in order to retain their effectiveness and the approximate location of the BMPs are as set forth in the Operation and Maintenance Plan (hereinafter "O&M PLAN"), which is attached hereto and incorporated herein as Exhibit "B". Because additional impervious area may require the addition of or alteration of storm water 2-0 - v> -'i 0 management areas and strategies, no impervious area may be added to the project site without prior approval from the City Engineer. Additional impervious area includes, but is not limited to, patio covers, hardscape improvements, and building additions. WHEREAS, OWNER's representations that the BMPs will be maintained have been relied upon by CITY in approving OWNER's development applications. It is the purpose of this Agreement to assure that the BMPs are maintained, by creating obligations that are enforceable against the OWNER and the OWNER's successors in interest in the PROPERTY. It is intended that these obligations be enforceable notwithstanding other provisions related to BMP maintenance that are provided by law. NOW, THEREFORE, for consideration of (a) CITY's approval of the above development applications and (b) the mutual covenants set forth herein, IT IS HEREBY AGREED AS FOLLOWS: 1. Maintenance of Storm Water Management Facilities. OWNER agrees, for itself and its successors in interest, to all or any portion of the PROPERTY, to comply in all respects with the requirements of the Stormwater Ordinance with regards to the maintenance of BMPs, and in particular agrees to perform, at its sole cost, expense and liability, the following "MAINTENANCE ACTIVITIES": all inspections, cleaning, repairs, servicing, maintenance and other actions specified in the O&M PLAN, with respect to all of the BMPs listed above, at the times and in the manner specified in the O&M PLAN. OWNER shall keep records of this maintenance and provide copies of such records and annual certification of maintenance as requested by CITY. OWNER shall initiate, perform and complete all MAINTENANCE ACTIVITIES at the required time, without request or demand from CITY or any other agency. OWNER further agrees that "MAINTENANCE ACTIVITIES" shall include replacement or modification of the BMPs in the event of failure. Replacement shall be with an identical type, size and model of BMP, except that: (a) The City Engineer may authorize substitution of an alternative BMP if he or she determines that it will be as effective as the failed BMP; and (b) If the failure of the BMP, in the judgment of the City Engineer, indicates that the BMP in use is inappropriate or inadequate to the circumstances, the BMP must be modified or replaced with a more effective BMP to prevent future failure in the same or similar circumstances. 2. Notices. OWNER further agrees that it shall, prior to transferring ownership of any Land on which any of the above BMPs are located, or any lot or portion of the PROPERTY which is served by the above BMPs, and also prior to transferring ownership of any such BMP, provide clear written notice of the above described maintenance obligations to the transferee. 3. CITY's Right to Perform Maintenance. It is agreed that CITY shall have the right, but not the obligation, to elect to perform any or all of the MAINTENANCE ACTIVITIES if, in the CITY's sole judgment, OWNER has failed to perform the same. Such maintenance by the CITY shall be conducted in accordance with the nuisance abatement procedures set forth in Poway Municipal Code Chapter 8.72. In the case of maintenance performed by the CITY, it may be performed by CITY forces, or a contractor hired by the CITY, at the CITY's sole election. It is recognized and understood that the CITY makes no representation that it intends to or will perform any of the MAINTENANCE ACTIVITIES, and any election by CITY to perform any of the MAINTENANCE ACTIVITIES shall in no way relieve OWNER of its continuing maintenance obligations under this agreement. If CITY elects to perform any of the MAINTENANCE ACTIVITIES, it is understood that CITY shall be deemed to be acting as the agent of the OWNER and said work shall be without warranty or representation by CITY as to safety or effectiveness, shall be deemed to be accepted by OWNER "as is", and shall be Vantage Point (G18-0008) Page 2 covered by OWNER's indemnity provisions below. If CITY performs any of the MAINTENANCE ACTIVITIES, after CITY has demanded that OWNER perform the same and OWNER has failed to do so within a reasonable time stated in the CITY's demand, then OWNER shall pay all of CITY's costs incurred in performing the MAINTENANCE ACTIVITIES, plus an administrative fee. OWNER's obligation to pay CITY's costs of performing MAINTENANCE ACTIVITIES is a continuing obligation. If OWNER fails to pay CITY's costs for performing MAINTENANCE ACTIVITIES, CITY may assess a lien on the property or properties of the responsible parties pursuant to the procedures set forth in Poway Municipal Code Chapter 8.72. 4. Grant of Easement to CITY. OWNER hereby grants to CITY a perpetual easement over, under and across all of the PROPERTY, for purposes of accessing the BMPs, inspecting the BMPs, and performing any of the MAINTENANCE ACTIVITIES specified in Paragraph 1 above. CITY shall have the right, at any time and without prior notice to OWNER, to enter upon any part of said area as may be necessary or convenient for such purposes. OWNER shall at all times maintain the PROPERTY so as to make CITY's access clear and unobstructed. 5. Administration of Agreement for CITY. CITY hereby designates the City Engineer as the officer charged with responsibility and authority to administer this Agreement on behalf of CITY. Any notice or communication to the City related to the implementation of this Agreement shall be addressed to: City Engineer City of Poway 13325 Civic Center Drive Poway, CA 92064 6. Defense and Indemnity. CITY shall not be liable for, and OWNER and its successors in interest shall defend and indemnify CITY and the employees and agents of CITY (collectively "CITY PARTIES"), against any and all claims, demands, liability, judgments, awards, fines, mechanic's liens or other liens, labor disputes, losses, damages, expenses, charges or costs of any kind or character, including attorneys' fees and court costs (hereinafter collectively referred to as "CLAIMS"), related to this Agreement and arising either directly or indirectly from any act, error, omission or negligence of OWNER, OWNER's successors, or their contractors, licensees, agents, servants or employees, including, without limitation, claims caused by the concurrent negligent act, error or omission, whether active or passive, of CITY PARTIES. OWNER shall have no obligation, however, to defend or indemnify CITY PARTIES from a claim if it is determined by a court of competent jurisdiction that such claim was caused by the sole negligence or willful misconduct of CITY PARTIES. Nothing in this Agreement, CITY's approval of the development application or plans and specifications, or inspection of the work is intended to acknowledge responsibility for any such matter, and CITY PARTIES shall have absolutely no responsibility or liability therefore unless otherwise provided by applicable law. 7 Allocation of Costs. Following the sale or transfer of any of the individual residential lots by OWNER, the cost of the MAINTENANCE ACTIVITIES required by this Agreement shall be divided equally by all lot owners, and paid by each lot owner or his or her heirs, assigns and successors in interest. This requirement shall be binding on all lot owners in the subdivision, and each shall be responsible for his or her equal share of the cost associated with the maintenance. 8. Agreement Binds Successors and Runs With the PROPERTY. It is understood and Vantage Point (G18-0008) Page 3 agreed that the terms, covenants and conditions herein contained shall constitute covenants running with the land and shall be binding upon the heirs, executors, administrators, successors and assigns of OWNER and CITY, shall be deemed to be for the benefit of all persons owning any interest in the PROPERTY (including the interest of CITY or its successors in the easement granted herein). It is the intent of the parties hereto that this Agreement shall be recorded and shall be binding upon all persons purchasing or otherwise acquiring all or any lot, unit or other portion of the PROPERTY, who shall be deemed to have consented to and become bound by all the provisions hereof. 9. OWNER's Continuing Responsibilities Where Work Commenced or Permit Obtained. Notwithstanding any other provision of this Agreement, no transfer or conveyance of the PROPERTY or any portion thereof shall in any way relieve OWNER of or otherwise affect OWNER's responsibilities for installation or maintenance of BMPs which may have arisen under the ordinances or regulations of CITY referred to in this Agreement, or other federal, state or CITY laws, on account of OWNER having obtained a permit which creates such obligations or having commenced grading, construction or other land disturbance work. 10. Amendment and Release. The terms of this Agreement may be modified only by a written amendment approved and signed by the Director of Development Services acting on behalf of CITY and by OWNER or OWNER's successor(s) in interest. This Agreement may be terminated and OWNER and the PROPERTY released from the covenants set forth herein, by a release, which CITY may execute if it determines that another mechanism will assure the ongoing maintenance of the BMPs or that it is no longer necessary to assure such maintenance. 11. Governing Law and Severability. This Agreement shall be governed by the laws of the State of California. Venue in any action related to this Agreement shall be in the Superior Court of the State of California, County of San Diego. OWNER hereby waives any right to remove any such action from San Diego County as is otherwise permitted by California Code of Civil Procedure Section 394. In the event that any of the provisions of this Agreement are held to be unenforceable or invalid by any court of competent jurisdiction, the validity, and enforceability of the remaining provisions shall not be affected thereby. Vantage Point (G18-0008) Page 4 IN WITNESS WHEREOF, the parties have executed this Agreement on the dates set forth hereinafter. OWNER: RREEF CPIF KIRKHAM WAY JV, LLC, a Delaware limited liability company By: RREEF CPIF Kirkham Way Member, LLC, a Delaware limited liability company, its Manager By: RREEF Core Plus Industrial REIT LLC, a Delaware limited liability company, its Member By: RREEF America, L.L.C., a Delaware limited liability company, its Investment Adviser By: Michael Nigro Its: PIO CITY OF POWAY: Rob- ` J. Manis Director of Development Service Date: 3 (signature must be notarized) APPROVED AS TO FORM: Office of the City Attorney Alaenstermacher, City Attorney Date: (signature must be notarized) Attachments 1. Certificate of Acceptance 2. Exhibit A — Legal Description 3. Exhibit B — O&M Manual 5idqfif APPROVED AS TO CONTENT: Engineering Division Thomas R. Frank, P.E. City Engineer Vantage Point (G18-0008) Page 5 STATE OF ILL;INJOIS COUNTY OF (tooK I certify that on the ag44'day of 20 1 personally appeared before me and acknowledged, under oath. to my satisfaction, that this person: Michael J. Nigro (a) is named in and personally signed this document: and. (b) signed, sealed and delivered this document as his or her act and deed. Notary Public Official Seal Beverly A Dillon Notary Public State of Illinois My Commission Expires 03/03/2022 For internal use only CALIFORNIA ALL-PURPOSE ACKNOWLEDGMENT CIVIL CODE § 1189 es - w oi,¢ Va. w.., w v. •_w.¢ aN.- i.- w,. • m ,cam, v.. Vtift- v.., w. a•• w. s+. v,.R, ak. ate• w, n m.r' y= INK& A notary public or other officer completing this certificate verifies only the identity of the individual who signed the document to which this certificate is attached, and not the truthfulness, accuracy, or validity of that document. State of California County of San Diego On 1` 1 fxcl t)-4 ,,a.01.before me, Date Yvonne Mannion Notary Public Here Insert Name and Title of the Officer personally appeared !? k) (fit 3 - Name(s) of Signer(s) who proved to me on the basis of satisfactory evidence to be the person(s)- whose name(s) is/are subscribed to the within instrument and acknowledged to me that he/she/they executed the same in his/her/el-heir authorized capacity(iegs), and that by his/her/their signature(s) on the instrument the persons , or the entity upon behalf of which the person(s) acted, executed the instrument. YVONNE MANNIQN Notary Public - California r San Diego County Commission # 2201766 My Comm. Expires Jun 18, 2021 Place Notary Seal Above I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct. WITNESS my hand and official seal. Signatu c",,,,,, Signature of Notary Public OPTIONAL Though this section is optional, completing this information can deter alteration of the document or fraudulent reattachment of this form to an unintended document. Description of Attached Document Title or Type of Docrent: S 7 kr-hl ; not exw `t t f& [ : i r;43- m o o t-oAnaz_ A6,ee.-r A r Document Date: ��IZIC1 ` Number of Pages: Signer(s) Other Than Named Above: Capacity(ies) Claimed by Signer(s) Signer's Name: Signer's Name: ❑ Corporate Officer — Title(s): 0 Corporate Officer — Title(s): ❑ Partner — 0 Limited ❑ General 0 Partner — 0 Limited 0 General ❑ Individual 0 Attorney in Fact ❑ Individual 0 Attorney in Fact 0 Trustee 0 Guardian or Conservator 0 Trustee 0 Guardian or Conservator 0 Other: 0 Other: Signer Is Representing: Signer Is Representing: ©2016 National Notary Association • www.NationalNotary.org • 1 -800 -US NOTARY (1-800-876-6827) Item #5907 } CERTIFICATE OF ACCEPTANCE (Storm Water Management Facilities Maintenance Agreement) This is to certify that the interest in real property located in the City of Poway conveyed by the Grant of Easement described in Item 4 of the attached document dated in arc h , )-c [F9 , from RREEF CPIF KIRKHAM WAY JV, LLC, a Delaware limited liability company, to the City of Poway, a political corporation and/or governmental agency, is hereby accepted by the undersigned officer or agent on behalf of the City Council pursuant to authority conferred by Resolution No. 17-007 adopted on April 18, 2017. Dated: 541 v//l CITY OF POWAY Seal: Bv• Robert J. Manis Director of Development Services Vantage Point (G18-0008) Page 6 Exhibit "A" LEGAL DESCRIPTION - PARKWAY SUMMIT / VANTAGE POINT PARCEL 2 OF CITY OF POWAY TPM 06-04, IN THE CITY OF POWAY, COUNTY OF SAN DIEGO, STATE OF CALIFORNIA, ACCORDING TO PARCEL MAP NO. 21053, FILED IN THE OFFICE OF THE COUNTY RECORDER OF SAN DIEGO COUNTY, JUNE 25, 2013; TOGETHER WITH THAT PORTION OF THE EAST HALF OF THE EAST HALF OF SECTION 19, TOWNSHIP 14 SOUTH, RANGE 1 WEST, SAN BERNARDINO BASE AND MERIDIAN, IN THE COUNTY OF SAN DIEGO, STATE OF CALIFORNIA, ACCORDING TO UNITED STATES GOVERNMENT SURVEY, MORE PARTICULARLY DESCRIBED AS FOLLOWS: THAT PORTION OF PARCEL MAP 21053, IN THE CITY OF POWAY, COUNTY OF SAN DIEGO, STATE OF CALIFORNIA, FILED IN THE OFFICE OF THE COUNTY RECORDER OF SAN DIEGO COUNTY, JUNE 25, 2013, DEPICTED ON SAID MAP AS THE UNNUMBERED PARCEL BOUNDED ON THE NORTHEAST BY THE SOUTHWESTERLY LINE OF PARCEL 2 OF SAID PARCEL MAP; ON THE SOUTHEAST BY THE NORTHWESTERLY LINE OF KIRKHAM WAY AND ON THE WEST BY THE WESTERLY LINE OF THE EAST HALF OF THE EAST HALF OF SECTION 19. POST -CONSTRUCTION TREATMENT/HYDROMODIFICAT/0N BMPS BMP DESCRIPTION BMP LOCATION SHEET NUMBER ACCESS/INSPECTION METHOD INSPECTION FEATURES MANUFACTURER AND PART NUMBER BIOFILTRATION BASIN NO. 1 NORTHEAST OF KIRKHAM WAY AND GENERAL ATOMICS WAY INTERSECTION 45 CHECK FOR ACCUMULATION, OBSTRUCTIONS, DAMAGE; POOR VEGETATION, EROSION, MULCH DECOMPO9770N, STANDING WATER, AND MOSQUITOS/LARVAE • OVERGROWN/DEAD/DISEASED VEGETATION • CONCENTRA1ED IRRIGATION/ RUNOFF FLOW • STANDING WATER 24 HRS AFTER STORM BF -1 B/OFIL7RA71ON BASIN NO. 2 NORTH OF KIRKHAM WAY. IN BETWEEN GENERAL ATOMICS WAY AND SOUTH ENTRANCE 45 CHECK FOR ACCUMULATION, OBSTRUCTIONS DAMAGE; POOR VEGETATION, EROSION, MULCH DECOMPOS/7/0N. STANDING WATER, AND MOSOUITOS/ ARVAE • OVERGROWN/DEAD/DISEASED VEGETATION • CON7RATED IRRIGATION/ RUNOFFFLOW • STANDING WATER W24 HRS. SR STORM BF -1 B/OFILIRAAON BASIN NO. 3 WEST OF KIRKHAM WAY AND SOUTH ENTRANCE INTERSECTION 45 CHECK FOR ACCUMULATION, OBSTRUCTIONS, DAMAGE; POOR VEGETATION, EROSION, MULCH DECOMPOSITION, STANDING WATER, AND MOSQUITOS/LARVAE • OVERGROWN/DEAD/DISEASED VEGETATION • CONCENTRATED IRRIGATION/ RUNOFFG WA TER 24 HRS • STORM STN BF -1 B/OFlLIRA110N BASIN NO. 4 EAST OF KIRKHAM WAY AND SOUTH ENTRANCE INTERSECTION 45 CHECK FOR ACCUMULATION. OBS1RUCIONS DAMAGE POOR VEGETATION, EROSION. MULCH DECOMPOSITION. STANDING WATER, AND MOSQUITOS/LARVAE • OVERGROWN/DEAD/DISEASED VEGETATION • CONCENTRATED IRRIGATION/ STANDING• WATER 24 HRS ATTER STORM BF -1 B/OFiLIRA7)ON BASIN NO. 5 S00171 OF KIRKHAM WAY AND SOUTH ENTRANCE INTERSECTION 45 CHECK FOR ACCUMULATION, OBSTRUCTIONS DAMAGE, POOR VEGETATION, EROSION. MULCH DECOMPOS/7)ON, STANDING WATER, AND MOSQUITOS/LARVAE • OVERGROWN/DEAD/DISEASED VEGETATION • CONCENTRATED IRRIGATION/ RUNOFF FLOW • STANDING WATER 24 HRS AFTER STORM BF -1 DRY EXTENDED DETENTION BASIN SOUTH OF KIRKHAM WAY. IN BETWEEN GENERAL ATOMICS WAY AND SOUTH ENTRANCE 45 CHECK FOR ACCUMULATION, OBSTRUC77ONS POOR VEGETA7I0N. EROSION, STANDING WATER, AND MOSQUITOS LARVAE • OVERGROWN/DEAD/DISEASED VEGETATION • CONCENTRATED IRRIGATION/ RUNOFF FLOW • STANDING WATER 24 HRS. AFTER STORM F -4 STREET TREES WEST ENTRANCE DRIVE NORTH SIDE OF WEST ENTRANCE DRIVE 45 CHECK TREE HEAL7H. STANDING WATER, MOSQUITOS AND DRAINAGE • STANDING WATER 24 HRS STORM • EEG RAFTS, LARVA, PUPA SD -1 FULL CAPTURE TRASH SCREEN BIOFIL7RA71ON OUTLET STRUCTURES 46 CHECK TRASH FILTER FOR INTEGRITY, ATTACHMENT 7O BASIN • STANDING WATER 24 HRS AFTER STORM • TRASH BUILDUP BASINS 1-4: B10 CLEAN GRATE INLET FULL CAPTURE TRASH FILLER MODEL: 47X47X18 BASIN 5: MODULAR CONNECTOR PIPE SCREEN (CPS). „G„ II IHX3 EXHIBIT "B" SPECIAL TRAINING REQUIREMENTS 1 1 1 1 1 RECOMMENDED EQUIPMENT 1 1 1 1 1 • HAND GUIDED ROTARY TILLER • SOIL REPLACEMENTS I MAINTENANCE ACTIVITY • REMOVE ACCUMULA710N/ BLOCKAGE • REPAIR/RE-SEED/RE-PLANT • ADJUST IRRIGATION • MOW OR TRIM • REMOVE' ACCUMULATION/ BLOCKAGE • REPAIR/RE-SEED/RE-PLANT • ADJUST IRRIGATION • MOW OR 7RIM • REMOVE ACCUMULATION/ BLOCKAGE • REPAIR/PE-SEED/RE-PLANT • ADJUST IRRIGATION • MOW OR TRIM • REMOVE ACCUMULATION/ BLOCKAGE • REPAIR/RE-SEED/RE-PLANT • ADJUST IRRIGATION • MOW OR TRIM • REMOVE ACCUMULATION/ BLOCKAGE • REPAIR/RE-SEED/RE-PLANT • ADJUST IRRIGATION • MOW OR TRIM • REMOVE ACCUMULATION/ BLOCKAGE • REPAIR/RE-SEED/RE-PLANT • ADJUST IRRIGA770N • LOOSEN/REPLACE SOILS • DISPERSE STANDING WA7ER • REPAIR DRAINAGE 70 WELL • REPAIR DAMAGE 7D TRASH SCREEN • DISPERSE STANDING WATER • REMOVE TRASH MAINTENANCE FREQUENCY • INSPECT MONTHLY AND AFTER EVERY 0.5" OR LARGER STORM • MAINTENANCE WHEN NEEDED • INSPECT MONTHLY AND AFTER EVERY 0.5" OR LARGER STORM • MAINTENANCE WHEN NEEDED • INSPECT MONTHLY AND AFTER EVERY O 5" OR LARGER STORM • MAINTENANCE WHEN NEEDED ................____.. _. _. • INSPECT MONTHLY AND AFTER EVERY 0.5" OR LARGER STORM • MAINTENANCE WHEN NEEDED • INSPECT MONTHLY AND AFTER EVERY 0.5" OR LARGER STORM • MAINTENANCE WHEN NEEDED • INSPECT MONTHLY AND AF7ER EVERY 0.5" OR LARGER STORM • INSPECT AF7ER EVERY 0.1" OR LARGER STORM IF FOREBAY IS 25X FULL OR IF EROSION OR STANDING WATER IS OBSERVED • MAINTENANCE WHEN NEEDED • INSPECT DAMAGE ANNUALLY • INSPECT MONTHLY AND AF7ER EVERY 0.5" OR LARGER STORM • INSPECT AF7ER EVERY 0.1" OR LARGER STORM IF STANDING WA7ER OR MOSQUITOS OBSERVED • MAINTENANCE WHEN NEEDED • INSPECT MONTHLY AND AF7ER EVERY 0.5" OR LARGER STORM • INSPECT AF7ER EVERY 0.1" OR LARGER STORM IF STANDING WA7ER OR MOSQUITOS OBSERVED • MAIN7ENANCE WHEN NEEDED MAINTENANCE THRESHOLDS • 2/3 MULCH DECOMPOSI7ION • STANDING WA7ER LONGER THAN 24 HRS. AF7ER STORM • 2/3 MULCH DECOMPOSI7ION • STANDING WATER LONGER THAN 24 HRS AF7ER STORM • 2/3 MULCH DECOMPOSITION • STANDING WATER LONGER THAN 24 HRS. AFTER STORM • 2/3 MULCH DECOMPOSITION • STANDING WATER LONGER THAN 24 HRS. AF7ER STORM • 2/3 MULCH DECOMPOSI77ON • STANDING WATER LONGER THAN 24 HRS AF7ER STORM • FOREBAY 25X FULL IN ONE MONTH • STANDING WATER • MOSQUITOS • WELL OPENING OBSTRUCTED • DEAD/DISEASED TREE • STANDING WATER • MOSQUITOS • TRASH OBS7RUC77NG OPENING SEE PREVIOUS SHEET FOR TABLE CONTINUATION SUBMITTAL DRAWINGS Bio6CIean A Forterra Company Proven Stormwater Treatment Technology PROJECT #: 10080 PROJECT NAME: Parkway Summit PREPARED FOR: TC Construction DATE SUBMITTED: 3/4/20 DISCLOSURE: It is the sole responsibility of purchaser to verify these submittals are accurate based upon the final set of construction plans. Bio Clean is not responsible for any variations to design after these submittals are ap- proved. If information in these submittals do not match the final set of construction plans it is the responsibility of the purchaser to request revision(s) from Bio Clean prior to approving the submittals. If the purchaser approves this submit- tal without final construction plans and/or without approval from the project engineer they do so at own risk. Bio Clean highly recommends that the purchaser get official stamped approval from Project Engineer(s) and/or all other Project Design Professions in accordance with project submittal specifications and manufactures recommendations. Bio Clean 398 Via El Centro Oceanside, CA 92058 www.BioCleanEnvironmenta[.com P 855-566-3938 F 760-433-3179 BIO CLEAN FULL CAPTURE FILTER FOR USE IN GRATE INLETS HIGH FLOW BYPASS BDDM RAILS NON -CLOGGING SCREEN. MEETS FULL CAPTURE REQUIREMENTS --- FLOATING HYDROCARBON BOOM BOTTOM SCREEN, MEETS FULL CAPTURE REQUIREMENTS MOUNTED DN (2EA) 51' & (2EA) 48' 2'X3' UNDERMDUNTS QTYI 4 CONCRETE STRUCTURE NOTES: 1. ALL HARDWARE, FLANGE, FRAME, SCREENS SHALL BE STAINLESS STEEL 2. HYDROCARBON BOOM SHALL BE 2" DIAMETER AND CONNECTED, MECHANICALLY TO THE FILTER FRAME WITH RAILS ALLOWING IT TO FLOAT ON THE WATER SURFACE REGARDLESS OF HEIGHT. 3. SEE PERFORMANCE REPORTS IN MANUFACTURER'S SPECIFICATIONS. 4. OTHER STANDARD AND CUSTOM MODEL SIZES AVAILABLE - CONTACT 8I0 CLEAN FOR MORE INFORMATION. 5. BASED ON 37X OPEN AREA. 6. CONSIDERS A SAFETY FACTOR OF 2.0. 7. CONSIDERS A LOCAL DEPRESSION PONDING DEPTH OF 6 INCHES. 8. STORAGE CAPACITY BASED ON THE BASKET HALF FULL 9. CONCRETE STRUCTURE SOLD SEPARATELY. MODEL # TREATMENT FLOW (CFS) BYPASS FLOW (CFS) SOLIDS STORAGE CAPACITY (CF) BIO -GRATE -FULL 47-47-18 25.59 10,13 Z92 A?AVIhG' BIO CLEAN GRATE DEET FILTER ILETAILS TYPICAL NEEL DETAIL MEETS FULL CAPTURE REQUIREMENTS VAN'ANTT1 8 YEAR NANLFACTLRERS PROXCR BID CLEAN ENVIRONMENTAL SERVICES, INC. 398 VIA EL CENTRO, OCEANSIDE CA 92058 PHONE, 760-433-7640 FAXI 760-433-3176 REVISIONS, DkTE' REVISILN{Sr 1:441E1 DATE, 10/12/17 SCALE; SF = 15 REVISILNSi DATE; BioeClean A Forterra Company DRAFTER; l(CP. UNITS = IAkES REVISILfin DATE; PAGE 1 BIO CLEAN MODULAR CONNECTOR PIPE SCREEN (CPS) CPS U PROJECT NUMBER 10080 PROJECT NAME PARKWAY SUMMIT PROJECT LOCAI7ON POWAY, C4 STRUCTURE ID MODULAR CPS U VAULT DEPTH (FT) 4.50 VAULT WIDTH (FT) 3 CURB OPENING HEIGHT (IN) N/A CPS LENGTH (Fr) 2.6 CPS HEIGHT (ON) 12 SCREEN OPEN AREA (SF) 1.31 SCREEN FLOW RATE (CFS') 3.62 BYPASS HEIGM ABOVE SCREEN (IN) 4 BYPASS now RATE (CFS) 6.84 OUTLET PIPE (IN) 012 QUrWTIIY 1 GENERAL NOTES 1. BIO CLEAN 10 PROVIDE ALL MATERIALS UNLESS OTHERWISE NOTED. 2. ALL DIMENSIONS, ELEVATIONS, SPECIRC4TTONS, AND C4PACl11ES ARE SUBJECT TO CHANGE 3. THIS CPS UNIT /S DESIGNED f01? TREATMENT ROWS THROUGH THE SCREEN. ROWS GREATER THAN ME TREATMENT ROW RATE WILL BYPASS OVER TME SCREEN 4. A BYPASS UD IS REQUIRED SINCE THE OUTLET PIPE 15' DIRECTLY BELOW THE CURB OPENING. 5. CPS /S COMPRISED OF 304 STAINLESS STEEL. THICKNESS IS 14 GAUGE: SCREEN PERFORATIONS ARE 5 MILLIMETERS 1N DIAMETER THE SCREEN AREA IS 50X OPEN SPACE INSTALLATION NOTES 1. CONTRACTOR TO PROVIDE ALL LABOR, EQUIPMENT, MATERIALS, AND INCIDENTALS REQUIRED TO INSTALL THE CPS UNIT AND APPURTENANCES IN ACCORDANCE WITH MIS DRAW/NG AND THE MANUFACTURERS SPECIFICATIONS, UNLESS OTHERWISE STATED IN MANUFACTURERS CONTRACT. 2. POSl7T0N THE CPS SO IT IS EVENLY SPACED AROUND THE CONNECTOR PIPE, ENSURING A MIN. OF 4" SPACING AWAY FROM ANY CORNETTS SCREEN 8017044 SHALL BE FLUSH WITH 144E CATCH BASIN now, OR WITH G4PS NO GREATER THAN 5MM. 3. IFA BYPASS U0 /S REQUIRED, VERIFY 171E BYPASS HEIGHT NEEDED AND MARK THAT LOCATION ON THE WALL DIRECTLY ABOVE THE BASE UPRIGHTS: UFT 144E LID /N PLACE AND MARK 111E HOLE LOCATIONS FOR 171E UD MOUNTING BRACKETS SECURE THE UO WITH' STAINLESS STEEL NUTS: BYPASS UL (AS NE DE4 STIFFENER SUPPO BR4CKE PERFORATED SS FOLDED A EDGES FOR MOUNTING (TY1 14G45MM--. PERFORATED SS, 50X OPEN ROUNDED SCREEN- RADIUS CREENRADIUS = 10" TOTAL SCREEN LENGTH 31 " (2.6) SPAN LENGTH = 20" COMPATIBLE WITH PIPES UP TO 012" WARRANTY: 3 YEAR MANUFACTURERS MEETS FULL CAPTURE RE00IREM917S 870 CLEW ENWRONMDYTAL SERVICES, INC. 398 V!4 EL CENTRO, OCEANSIDE CA 92058 P1101161 760-433-7640 FAX. 760-433-3176 REWSIO : LATE REVISIONS: ORD A4TE 2/9/2018 SCALP NTS CATE• 0Vu4FTER Srs UNITS = ACHES REVISIONS. 1441E Bio'bCIean A Forterra Company Screen Flow • Flow through the screen is a function of the open area of the screen (A) and the differential head between the upstream and downstream side of the screen (h). • Shallow, slow-moving flows. lairj FORTERRA QS 017.71f Bo Clean Bypass Flow • Bypass flow overtops the screen and flows into the outlet pipe. • Faster, cleaner flows. • Flow is a function of bypass area and the differential head between the top of the water surface and the centroid of the bypass. I� FORTERRA Bio * Clean 1 F Bio Clean Modular CPS U & U -Ext CPS length CPS height A«re«. (not open area) 01 e,.. ft in of ole 2.6 12 1.31 3.62 3.0 12 1.50 4.16 3,6 12 1.76 4.86 4.0 12 2.00 5.55 4.5 12 2.25 6.24 5.5 12 2.75 7.63 2.5 18 1.96 6.65 3.0 18 2,25 7.65 3.5 1B 2.63 8.92 4.6 18 3.00 10.19 4.5 18 3.38 11.47 5.5 18 4.13 14.02 2.6 24 2.61 10.24 3.0 24 3.00 11.78 3.5 24 3.60 13.74 4,0 24 4.00 15.70 4.5 24 4.56 17.66 5.5 24 5.50 21.59 2.6 30 3.26 14.32 3.0 30 3.76 16.46 3.5 30 4.38 19.20 4,0 30 5.00 21.95 4.5 30 6.63 24.69 5.6 ... 30 8.88 30.18 `o o 0 o r 36 3.92 18.83 36 4.50 21.64 38 525 25.25 36 6.00 28.66 36 0.75 32.46 36 8.25 39.88 Sizing Bio Clean Modular CPS L CPS length CPS height Awremaree)opeal Q"}1'" ft In st as 2.1 12 1.05 2.91 2.5 12 1.25 3.47 3.0 12 1.50 4.16 3.5 12 1.75 4.86 4.0 12 2.00 5.55 5,0 12 2.50 6.94 2.1 18 1.58 5.36 2.5 18 1.88 6.37 3.0 18 2.25 7.65 3.6 18 2.63 8.92 4.0 18 3.00 10.19 5.0 18 3.75 12.74 2.1 24 2.10 8.24 2.5 24 2.50 9.81 3.0 24 3.00 11.78 3.5 24 3.50 13.74 4.0 24 4.00 15.70 5.0 24 5.00 19.63 2.1 30 2.83 11.52 2.5 30 3.13 13.72 3.0 30 3.75 16.46 3.5 30 4.38 19,20 4.0 30 5.00 21.95 5.0 30 8.25 27.43 2.1 36 3.15 15.15 2.6 36 3.75 18.04 3,0 36 4.50 21.64 3.5 36 6.25 26.25 4,0 30 6.00 28.86 5.0 36 7.50 36.07 CPS U & U. Ext length (ft) CPS l length (ft) Max. Pipe 7 (P1 2.8 2,1 12 3.0 2.5 15 3.5 3.0 18 4.0 3.5 24 4.5 4.0 30 5.5 5.0 36 Blow Clean OPERATION &MAINTENANCE Bio Clean Environmental Services, Inc. 398 Via El Centro Oceanside, CA 92058 www.BioCleanEnvironmentahcom p: 760.433.7640 f: 760.433.3176 DIo w Clean A Forterra Company OPERATION & MAINTENANCE The Bio Clean Grate Inlet Filter is a stormwater device designed to remove high levels of trash, debris, sediments and hydrocarbons. The filter is available in several configurations including trash full capture, multi-level screening, Kraken membrane filter and media filter variations. This manual covers maintenance procedures of the trash full capture and multi-level screening configurations. A supplemental manual is available for the Kraken and media filter variations. This filter is made of 100% stainless steel and is available and various sizes and depths allowing it to fit in any grated catch basin inlet. The filters heavy duty construction allows for cleaning with any vacuum truck. The filet can also easily be cleaned by hand. As with all stormwater BMPs, inspection and maintenance on the Grate Inlet Filter is necessary. Stormwater regulations require BMPs be inspected and maintained to ensure they are operating as designed to allow for effective pollutant removal and provide protection to receiving water bodies. It is recommended that inspections be performed multiple times during the first year to assess site- specific loading conditions. This is recommended because pollutant loading can vary greatly from site to site. Variables such as nearby soil erosion or construction sites, winter sanding of roads, amount of daily traffic and land use can increase pollutant loading on the system. The first year of inspections can be used to set inspection and maintenance intervals for subsequent years. Without appropriate maintenance a BMP can exceed its storage capacity which can negatively affect its continued performance in removing and retaining captured pollutants. Grate H rgh Flow --rte"°'"` Bis Fl ter Basket Outlet Pips• Hydrooarbon Boom fl— Mounting, Flange 11 Page Bio v Clean A Forterra Company Inspection Equipment Following is a list of equipment to allow for simple and effective inspection of the Grate Inlet Filter: • Bio Clean Environmental Inspection Form (contained within this manual). • Manhole hook or appropriate tools to remove access hatches and covers. • Appropriate traffic control signage and procedures, • Protective clothing and eye protection. • Note: entering a confined space requires appropriate safety and certification. It is generally not reauired for routine inspections or maintenance of the euctPm Inspection Steps The core to any successful stormwater BMP maintenance program is routine inspections. The inspection steps required on the Grate Inlet Filter are quick and easy. As mentioned above the first year should be seen as the maintenance interval establishment phase, During the first year more frequent inspections should occur in order to gather loading data and maintenance requirements for that specific site. This information can be used to establish a base for long-term inspection and maintenance interval requirements. The Grate Inlet Filter can be inspected though visual observation. All necessary pre -inspection steps must be carried out before inspection occurs, such as safety measures to protect the inspector and nearby pedestrians from any dangers associated with an open grated inlet. Once the grate has been safely removed the inspection process can proceed: • Prepare the inspection form by writing in the necessary information including project name, location, date & time, unit number and other info (see inspection form). • Observe the filter with the grate removed. • Look for any out of the ordinary obstructions on the grate or in the filter and its bypass. Write down any observations on the inspection form. • Through observation and/or digital photographs estimate the amount of trash, foliage and sediment accumulated inside the filter basket. Record this information on the inspection form • Observe the condition and color of the hydrocarbon boom, Record this information on the inspection form. • Finalize inspection report for analysis by the maintenance manager to determine if maintenance is required. 2( Page Bio 4 Clean A Forterra Company Maintenance Indicators Based upon observations made during inspection, maintenance of the system may be required based on the following indicators: • Missing or damaged internal components. • Obstructions in the filter basket and its bypass. • Excessive accumulation of trash, foliage and sediment in the filter basket. Maintenance is required when the basket is greater than half -full. • The following chart shows the 50% and 100% storage capacity of each filter height: Model Filter Basket Diameter (in) Filter Basket Height (in) 50% Storage Capacity (cu ft) 100% Storage Capacity (cu ft) BC -GRATE -12-12-12 10.00 12.00 0.27 0.55 BC -GRATE -18-18-18 16.00 18,00 1.05 2.09 BC -GRATE -24-24-24 21.00 24.00 2.41 4.81 BC -GRATE -30-30-24 27.00 24.00 3.98 7.95 BC -GRATE -36-36-24 33.00 24.00 5.94 11.88 BC -GRATE -4&48-18 44.00 18.00 7.92 15.84 Maintenance Equipment It is recommended that a vacuum truck be utilized to minimize the time required to maintain the Curb Inlet Filter, though it can easily cleaned by hand: • Bio Clean Environmental Maintenance Form (contained in O&M Manual). • Manhole hook or appropriate tools to remove the grate. • Appropriate safety signage and procedures. • Protective clothing and eye protection. • Note: entering a confined space requires appropriate safety and certification. It is generally not required for routine maintenance of the system. Small or large vacuum truck (with pressure washer attachment preferred). Maintenance Procedures It is recommended that maintenance occurs at least two days after the most recent rain event to allow debris and sediments to dry out, Maintaining the system while flows are still entering it will increase the time and complexity required for maintenance. Cleaning of the Grate Inlet Filter can be performed utilizing a vacuum truck. Once all safety measures have been set up cleaning of the Grate Inlet Filter can proceed as followed: 3Page w -Clean A Forterra Company • Remove grate (traffic control and safety measures to be completed prior). • Using an extension on a vacuum truck position the hose over the opened catch basin. Insert the vacuum hose down into the filter basket and suck out trash, foliage and sediment. A pressure wash is recommended and will assist in spraying of any debris stuck on the side or bottom of the filter basket. Power wash off the filter basket sides and bottom. + Next remove the hydrocarbon boom that is attached to the inside of the filter basket. The hydrocarbon boom is fastened to rails on two opposite sides of the basket (vertical rails). Assess the color and condition of the boom using the following information in the next bullet point. If replacement is required install and fasten on a new hydrocarbon boom. Booms can be ordered directly from the manufacturer. • Follow is a replacement indication color chart for the hydrocarbon hnnmc C Excellent Condition Good Condition Capacity ( kequired • The last step is to replace the grate and remove all traffic control. • All removed debris and pollutants shall be disposed of following local and state requirements. • Disposal requirements for recovered pollutants may vary depending on local guidelines. In 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 hazardous waste. • In the case of damaged components, replacement parts can be ordered from the manufacturer. Hydrocarbon booms can also be ordered directly from the manufacturer as previously noted. l . 4Page Maintenance Sequence Bio v Clean A Forterra Company Remove grate and set up vacuum truck to clean the filter basket. Insert the vacuum hose down into the filter basket and suck out debris. Use a pressure washer to assist in vacuum removal. Pressure wash off screens. 5IPage Bio v Clean A Forterra Company Remove the hydrocarbon boom that is attached to the inside of the filter basket. The hydrocarbon boom is fastened to rails on two opposite sides of the basket (vertical rails). Assess the color and condition of the boom using the following information in the next bullet point. If replacement is required install and fasten on a new hydrocarbon boom. Close up and replace the grate and remove all traffic control. All removed debris and pollutants shall be disposed of following local and state requirements, Bio*Ciean A Forterra Company Inspection and Maintenance Report Catch Basin Only Project Name Project Address Owner/ Management Company Contact Mr) (Zip Codi Inspector Name Phone ( } — Date Type of Inspection 0 Routine ❑oltow Up dompiaint Qtorm Storm Event in Last 72 -hours? Additional Notes Weather Condition Ds Site Map # GPS Coordinates of Insert Catch Basin Size Evidence of Illicit Discharge? Trash Accumulation Foliage Accumulation Sediment Accumulation Signs of Structural Damage? Functioning Properly or Maintenance Needed? 1 Lat: . --- Long: 2 Let: Long: 3 Lat: Long: 4 Lat: Long: 5 Lat: Long: ti Lat: Long: Lat: Long: 8 Lat: i Long: 10 Lat: Long: 11 Lat: Long: 12 Lat: Long: Comments: 398 Via EI Centro, Oceanside, CA 92058 P. 780.433.7640 F. 760.433.3175 Bio u Clean A Forterra Company Bio Clean Modular Connector Pipe Screen (CPS) Operation & Maintenance (O&M) Blots-) Clean A Forterra Company Modular Connector Pipe Screen (CPS) Operation & Maintenance (O&M) Note Modular CPS devices should be maintained by individuals who are trained in proper disposal procedures, confined space entry and traffic safety regulations. When servicing a Modular CPS device be sure to follow all safety and traffic control protocols as well as wearing all proper personal protection equipment such as gloves, safety glasses, hard-hat, safety vest and work boots, Visual Inspection 1. Begin by inspecting the inflow of the catch basin where the Modular CPS device is located. Check for any obstructions to inflow of the CB unit. If any large obstructions are found, have them removed. Once the inflow inspection is completed, remove the man -hole cover for further inspection. (Note: Confined Space Entry Procedures may apply if trained personnel intend to enter the interior space of any Catch Basin. Please follow all applicable confined space entry procedures) 2. Remove the manhole cover and visually estimate the amount and types of debris found in the CB unit. Look for any visual signs of damage that may compromise the CB unit to function properly. Inspect for any standing water in the CB unit as well as for Targe amounts of sediment and debris surrounding the Modular CPS device. If standing water and high sediment volume is found, remove water, sediment and debris by vacuum truck or by other debris removal methods. Cleaning Procedures and Frequencies 1. Like all other storm water BMP's, Modular CPS devices require periodic maintenance. Routine inspection and maintenance intervals for all CPS devices are typically twice per year for inspections and once per year for maintenance service. Modular CPS devices may require more frequent maintenance service if the device is located in a high debris loading drainage area, such as certain downtown areas, retail/restaurant, or residential areas where a significant amount of vegetation/foliage is located. In such cases, Modular CPS devices may require more frequent inspection and maintenance service, which could range from twice per year to monthly inspection and maintenance service, depending on pollutant load conditions. Bio Clean A Forterra Company 2. To begin Modular CPS cleaning procedures, conduct a visual inspection of the CPS device and the surrounding area to ensure a safe working environment. Setup appropriate barriers and signage as necessary to establish a work zone surrounding the catch basin. Once the work zone has been established, remove the manhole cover from the catch basin. 3. Once the manhole cover is removed from the basin the Modular CPS is ready for servicing. All debris can be removed by either a vacuum truck or manually removing sediment and debris by hand. 4. Modular CPS devices shall be cleaned using a pressure washer as may be necessary if any materials are found to cause occlusion or clogging of the screen. Disposal 1. All trash and debris removed from the Modular CPS unit shall be disposed of in accordance with local, state and federal regulation. 2. Solid waste disposal can be coordinated with local landfills. Liquids may need to be disposed of by wastewater treatment plant, municipal vacuum truck decant facility or approved facility. For maintenance services please contact Bio Clean at: 760-433-7640 info(a biocleanenvironmental.com Bio6 lean A Forterra Company Inspection and Maintenance Report Modular Connector Pipe Screen (CPS) Project Name Project Address Owner / Management Company Contact Inspector Name (aty) (zip Code) Phone ( Date / / lime mm/PM Type of Inspection ❑ Routine ❑ Follow Up ❑ Complaint OStorm Storm Event in Last 72 -hours? L] No 0 Yes Weather Condition Additional Notes Site Map # GPS Coordinates of Catch Basin Model # Inspection of Curb Inlet, Connector Pipe, Screen, B ass lid if re aired , YP ( 9 ) and Anchor Bolts Trash or Sediment Accumulation (lbs) & Depth (inches) Structural Notes Operational Per Manufacturer's Specifications (If not, why?) Lat: • Long: Lat: Long: Lat; i, Long: Comments: 398 Via El Centro, Oceanside, CA 92058 P. 760.433.7640 F. 760.433.3176 BF -1 Biofiltration BMP MAINTENANCE FACT SHEET FOR STRUCTURAL BMP BF -1 BIOFILTRATION Biofiltration facilities are vegetated surface water systems that filter water through vegetation, and soil or engineered media prior to discharge via underdrain or overflow to the downstream conveyance system. Biofiltration facilities have limited or no infiltration. They are typically designed to provide enough hydraulic head to move flows through the underdrain connection to the storm drain system. Typical biofiltration components include: • Inflow distribution mechanisms (e.g., perimeter flow spreader or filter strips) • Energy dissipation mechanism for concentrated inflows (e.g., splash blocks or riprap) • Shallow surface ponding for captured flows • Side slope and basin bottom vegetation selected based on climate and ponding depth • Non -floating mulch layer • Media layer (planting mix or engineered media) capable of supporting vegetation growth • Filter course layer consisting of aggregate to prevent the migration of fines into uncompacted native soils or the aggregate storage layer • Aggregate storage layer with underdrain(s) • Impermeable liner or uncompacted native soils at the bottom of the facility • Overflow structure Normal Expected Maintenance Biofiltration requires routine maintenance to: remove accumulated materials such as sediment, trash or debris; maintain vegetation health; maintain infiltration capacity of the media layer; replenish mulch; and maintain integrity of side slopes, inlets, energy dissipators, and outlets. A summary table of standard inspection and maintenance indicators is provided within this Fact Sheet. Non -Standard Maintenance or BMP Failure If any of the following scenarios are observed, the BMP is not performing as intended to protect downstream waterways from pollution and/or erosion. Corrective maintenance, increased inspection and maintenance, BMP replacement, or a different BMP type will be required. • The BMP is not drained between storm events. Surface ponding longer than approximately 24 hours following a storm event may be detrimental to vegetation health, and surface ponding longer than approximately 96 hours following a storm event poses a risk of vector (mosquito) breeding. Poor drainage can result from clogging of the media layer, filter course, aggregate storage layer, underdrain, or outlet structure. The specific cause of the drainage issue must be determined and corrected. • Sediment, trash, or debris accumulation greater than 25% of the surface ponding volume within one month. This means the load from the tributary drainage area is too high, reducing BMP function or clogging the BMP. This would require pretreatment measures within the tributary area draining to the BMP to intercept the materials. Pretreatment components, especially for sediment, will extend the life of components that are more expensive to replace such as media, filter course, and aggregate layers. • Erosion due to concentrated storm water runoff flow that is not readily corrected by adding erosion control blankets, adding stone at flow entry points, or minor re -grading to restore proper drainage according to the original plan. If the issue is not corrected by restoring the BMP to the original plan and grade, the [City Engineer] shall be contacted prior to any additional repairs or reconstruction. BF -1 Biofiltration Other Special Considerations Biofiltration is a vegetated structural BMP. Vegetated structural BMPs that are constructed in the vicinity of, or connected to, an existing jurisdictional water or wetland could inadvertently result in creation of expanded waters or wetlands. As such, vegetated structural BMPs have the potential to come under the jurisdiction of the United States Army Corps of Engineers, SDRWQCB, California Department of Fish and Wildlife, or the United States Fish and Wildlife Service. This could result in the need for specific resource agency permits and costly mitigation to perform maintenance of the structural BMP. Along with proper placement of a structural BMP, routine maintenance is key to preventing this scenario. BF -1 Biofiltration SUMMARY OF STANDARD INSPECTION AND MAINTENANCE FOR BF -1 BIOFILTRATION The property owner is responsible to ensure inspection, operation and maintenance of permanent BMPs on their property unless responsibility has been formally transferred to an agency, community facilities district, homeowners association, property owners association, or other special district. Maintenance frequencies listed in this table are average/typical frequencies. Actual maintenance needs are site-specific, and maintenance may be required more frequently. Maintenance must be performed whenever needed, based on maintenance indicators presented in this table. The BMP owner is responsible for conducting regular inspections to see when maintenance is needed based on the maintenance indicators. During the first year of operation of a structural BMP, inspection is recommended at least once prior to August 31 and then monthly from September through May. Inspection during a storm event is also recommended. After the initial period of frequent inspections, the minimum inspection and maintenance frequency can be determined based on the results of the first year inspections. Threshold/Indicator Maintenance Action Typical Maintenance Frequency Accumulation of sediment, litter, or debris Remove and properly dispose of accumulated materials, without damage to the vegetation or compaction of the media layer. • Inspect monthly. If the BMP is 25% full* or more in one month, increase inspection frequency to monthly plus after every 0.1 -inch or larger storm event. • Remove any accumulated materials found at each inspection. Obstructed inlet or outlet structure Clear blockage. • Inspect monthly and after every 0.5 -inch or larger storm event. • Remove any accumulated materials found at each inspection. Damage to structural components such as weirs, inlet or outlet structures Repair or replace as applicable • Inspect annually. • Maintenance when needed. Poor vegetation establishment Re -seed, re -plant, or re-establish vegetation per original plans. • Inspect monthly. • Maintenance when needed. Dead or diseased vegetation Remove dead or diseased vegetation, re -seed, re -plant, or re-establish vegetation per original plans. • Inspect monthly. • Maintenance when needed. Overgrown vegetation Mow or trim as appropriate. • Inspect monthly. • Maintenance when needed. 2/3 of mulch has decomposed, or mulch has been removed Remove decomposed fraction and top off with fresh mulch to a total depth of 3 inches. • Inspect monthly. • Replenish mulch annually, or more frequently when needed based on inspection. *"25% full" is defined as 'A of the depth from the design bottom elevation to the crest of the outflow structure (e.g., if the height to the outflow opening is 12 inches from the bottom elevation, then the materials must be removed when there is 3 inches of accumulation — this should be marked on the outflow structure). BF -1 Biofiltration SUMMARY OF STANDARD INSPECTION AND MAINTENANCE FOR BF -1 BIOFILTRATION (Continued from previous page) Threshold/Indicator Maintenance Action Typical Maintenance Frequency Erosion due to concentrated irrigation flow Repair/re-seed/re-plant eroded areas and adjust the irrigation system. • Inspect monthly. • Maintenance when needed. Erosion due to concentrated storm water runoff flow Repair/re-seed/re-plant eroded areas, and make appropriate corrective measures such as adding erosion control blankets, adding stone at flow entry points, or minor re -grading to restore proper drainage according to the original plan. If the issue is not corrected by restoring the BMP to the original plan and grade, the [City Engineer] shall be contacted prior to any additional repairs or reconstruction. • Inspect after every 0.5 -inch or larger storm event. If erosion due to storm water flow has been observed, increase inspection frequency to after every 0.1 -inch or larger storm event. • Maintenance when needed. If the issue is not corrected by restoring the BMP to the original plan and grade, the [City Engineer] shall be contacted prior to any additional repairs or reconstruction. Standing water in BMP for longer than 24 hours following a storm event Surface ponding longer than approximately 24 hours following a storm event may be detrimental to vegetation health Make appropriate corrective measures such as adjusting irrigation system, removing obstructions of debris or invasive vegetation, clearing underdrains, or repairing/replacing clogged or compacted soils. • Inspect monthly and after every 0.5 -inch or larger storm event. If standing water is observed, increase inspection frequency to after every 0.1 -inch or larger storm event. •Maintenance when needed. Presence of mosquitos/larvae For images of egg rafts, larva, pupa, and adult mosquitos, see http://www.mosquito.org/biology If mosquitos/larvae are observed: first, immediately remove any standing water by dispersing to nearby landscaping; second, make corrective measures as applicable to restore BMP drainage to prevent standing water. If mosquitos persist following corrective measures to remove standing water, or if the BMP design does not meet the 96 -hour drawdown criteria due to release rates controlled by an orifice installed on the underdrain, the [City Engineer] shall be contacted to determine a solution. A different BMP type, or a Vector Management Plan prepared with concurrence from the County of San Diego Department of Environmental Health, may be required. • Inspect monthly and after every 0.5 -inch or larger storm event. If mosquitos are observed, increase inspection frequency to after every 0.1 -inch or larger storm event. • Maintenance when needed. Underdrain clogged Clear blockage. • Inspect if standing water is observed for longer than 24-96 hours following a storm event. • Maintenance when needed. FT -4 Dry Extended Detention Basin BMP MAINTENANCE FACT SHEET FOR FLOW-THRU STRUCTURAL BMP FT -4 DRY EXTENDED DETENTION BASIN Dry extended detention basins are basins that have been designed to detain storm water for an extended period to allow sedimentation and typically drain completely between storm events. The slopes, bottom, and forebay of above -ground dry extended detention basins are typically vegetated. Dry extended detention basins may serve multiple uses including parks, playing fields, tennis courts, open space, and overflow parking lots. This BMP category also includes detention basins that serve a purpose of flow control for hydromodification management only, which may or may not include vegetation. They can be underground structures, in many possible configurations, including both proprietary and non-proprietary systems. They may be constructed of a single large vault, one or multiple large pipes, or other modular units. Outlet structures control outflow from either above- ground or underground detention systems; outlet structures may be weirs, orifice plates, risers, or other control structures. Typical dry extended detention basin components include: • Forebay for pretreatment • Surface ponding for captured flows • Vegetation selected based on basin use, climate and ponding depth (above -ground basins) • Low flow channel, outlet, and overflow device • Impermeable liner or uncompacted native soils at the bottom of the facility Normal Expected Maintenance Dry extended detention basins require routine maintenance to: remove accumulated materials such as sediment, trash or debris; maintain vegetation health; and maintain integrity of side slopes, inlets, energy dissipators, and outlets. A summary table of standard inspection and maintenance indicators is provided within this Fact Sheet. Non -Standard Maintenance or BMP Failure If any of the following scenarios are observed, the BMP is not performing as intended to protect downstream waterways from pollution and/or erosion. Corrective maintenance, increased inspection and maintenance, BMP replacement, or a different BMP type will be required. • The BMP is not drained between storm events. Surface ponding longer than approximately 24 hours following a storm event may be detrimental to vegetation health, and surface or underground ponding longer than approximately 96 hours following a storm event poses a risk of vector (mosquito) breeding. Poor drainage can result from clogging of underlying native soils and/or the outlet structure. The specific cause of the drainage issue must be determined and corrected. If it is determined that the drainage of the basin relies on infiltration and the underlying native soils have been compacted or do not have the infiltration capacity expected, the [City Engineer] shall be contacted prior to any additional repairs or reconstruction. • Sediment, trash, or debris accumulation greater than 25% of the surface ponding volume within one month. This means the load from the tributary drainage area is too high, reducing BMP function or clogging the BMP. This would require pretreatment measures within the tributary area draining to the BMP to intercept the materials. • Erosion due to concentrated storm water runoff flow that is not readily corrected by adding erosion control blankets, adding stone at flow entry points, or minor re -grading to restore proper drainage according to the original plan. If the issue is not corrected by restoring the BMP to the original plan and grade, the [City Engineer] shall be contacted prior to any additional repairs or reconstruction. FT -4 Dry Extended Detention Basin Other Special Considerations Some above -ground dry extended detention basins are vegetated structural BMPs. Vegetated structural BMPs that are constructed in the vicinity of, or connected to, an existing jurisdictional water or wetland could inadvertently result in creation of expanded waters or wetlands. As such, vegetated structural BMPs have the potential to come under the jurisdiction of the United States Army Corps of Engineers, SDRWQCB, California Department of Fish and Wildlife, or the United States Fish and Wildlife Service. This could result in the need for specific resource agency permits and costly mitigation to perform maintenance of the structural BMP. Along with proper placement of a structural BMP, routine maintenance is key to preventing this scenario. Underground dry extended detention basins are typically designed to be cleaned from above -ground using a vactor. If maintenance conditions require maintenance personnel to enter the underground structure, the maintenance personnel must be trained and certified in confined space entry. FT -4 Dry Extended Detention Basin SUMMARY OF STANDARD INSPECTION AND MAINTENANCE FOR FT -4 DRY EXTENDED DETENTION BASIN The property owner is responsible to ensure inspection, operation and maintenance of permanent BMPs on their property unless responsibility has been formally transferred to an agency, community facilities district, homeowners association, property owners association, or other special district. Maintenance frequencies listed in this table are average/typical frequencies. Actual maintenance needs are site-specific, and maintenance may be required more frequently. Maintenance must be performed whenever needed, based on maintenance indicators presented in this table. The BMP owner is responsible for conducting regular inspections to see when maintenance is needed based on the maintenance indicators. During the first year of operation of a structural BMP, inspection is recommended at least once prior to August 31 and then monthly from September through May. Inspection during a storm event is also recommended. After the initial period of frequent inspections, the minimum inspection and maintenance frequency can be determined based on the results of the first year inspections. Threshold/Indicator Maintenance Action Typical Maintenance Frequency Accumulation of sediment, litter, or debris in forebay and/or basin Remove and properly dispose of accumulated materials, (without damage to vegetation when applicable). • Inspect monthly. If the forebay is 25% full* or more in one month, increase inspection frequency to monthly plus after every 0.1 -inch or larger storm event. • Remove any accumulated materials found within the basin area at each inspection. • When the BMP includes a forebay, materials must be removed from the forebay when the forebay is 25% full*, or if accumulation within the forebay blocks flow to the basin. Obstructed inlet or outlet structure Clear blockage. • Inspect monthly and after every 0.5 -inch or larger storm event. • Remove any accumulated materials found at each inspection. Poor vegetation establishment (when the BMP includes vegetated surface by design) Re -seed, re -plant, or re-establish vegetation per original plans. • Inspect monthly. • Maintenance when needed. Dead or diseased vegetation (when the BMP includes vegetated surface by design) Remove dead or diseased vegetation, re -seed, re -plant, or re-establish vegetation per original plans. • Inspect monthly. • Maintenance when needed. Overgrown vegetation (when the BMP includes vegetated surface by design) Mow or trim as appropriate. • Inspect monthly. • Maintenance when needed. *"25% full" is defined as Y of the depth from the design bottom elevation to the crest of the outflow structure (e.g., if the height to the outflow opening is 12 inches from the bottom elevation, then the materials must be removed when there is 3 inches of accumulation — this should be marked on the outflow structure). FT -4 Dr v Extended Detention Basin SUMMARY OF STANDARD INSPECTION AND MAINTENANCE FOR FT -4 DRY EXTENDED DETENTION BASIN (Continued from previous page) Threshold/Indicator Maintenance Action Typical Maintenance Frequency Erosion due to concentrated irrigation flow Repair/re-seed/re-plant eroded areas and adjust the irrigation system. • Inspect monthly. • Maintenance when needed. Erosion due to concentrated storm water runoff flow Repair/re-seed/re-plant eroded areas, and make appropriate corrective measures such as adding erosion control blankets, adding stone at flow entry points, or minor re -grading to restore proper drainage according to the original plan. If the issue is not corrected by restoring the BMP to the original plan and grade, the [City Engineer] shall be contacted prior to any additional repairs or reconstruction. • Inspect after every 0.5 -inch or larger storm event. If erosion due to storm water flow has been observed, increase inspection frequency to after every 0.1 -inch or larger storm event. • Maintenance when needed. If the issue is not corrected by restoring the BMP to the original plan and grade, the [City Engineer] shall be contacted prior to any additional repairs or reconstruction. Standing water in above -ground BMP for longer than 24- 96 hours following a storm event Make appropriate corrective measures such as adjusting irrigation system, removing obstructions of debris or invasive vegetation, or removing/replacing clogged or compacted surface treatments and/or scarifying or tilling native soils. Always remove deposited sediments before scarification, and use a hand -guided rotary tiller. If it is determined that the drainage of the basin relies on infiltration and the underlying native soils have been compacted or do not have the infiltration capacity expected, the [City Engineer] shall be contacted prior to any additional repairs or reconstruction. • Inspect monthly and after every 0.5 -inch or larger storm event. If standing water is observed, increase inspection frequency to after every 0.1 -inch or larger storm event. • Maintenance when needed. Standing water in underground BMP for longer than 24- 96 hours following a storm event Make appropriate corrective measures such as removing obstructions at the outlet, clearing underdrains, or flushing fine sediment from aggregate layer when applicable. If it is determined that the drainage of the basin relies on infiltration and the underlying native soils have been compacted or do not have the infiltration capacity expected, the [City Engineer] shall be contacted prior to any additional repairs or reconstruction. • Inspect monthly and after every 0.5 -inch or larger storm event. If standing water is observed, increase inspection frequency to after every 0.1 -inch or larger storm event. • Maintenance when needed. FT -4 Dry Extended Detention Basin SUMMARY OF STANDARD INSPECTION AND MAINTENANCE FOR FT -4 DRY EXTENDED DETENTION BASIN (Continued from previous page) Threshold/Indicator Maintenance Action Typical Maintenance Frequency Presence of mosquitos/larvae For images of egg rafts, larva, pupa, and adult mosquitos, see http://www.mosquito.org/biology If mosquitos/larvae are observed: first, immediately remove and properly dispose any standing water; second, make corrective measures as applicable to restore BMP drainage to prevent standing water. For underground detention basins, ensure access covers are tight fitting, with gaps or holes no greater than 1/16 inch, and/or install barriers such as inserts or screens that prevent mosquito access to the subsurface storage. If mosquitos persist following corrective measures to remove standing water, or if the BMP design does not meet the 96 -hour drawdown criteria due to release rates controlled by an orifice installed on the underdrain, the [City Engineer] shall be contacted to determine a solution. A different BMP type, or a Vector Management Plan prepared with concurrence from the County of San Diego Department of Environmental Health, may be required. • Inspect monthly and after every 0.5 -inch or larger storm event. If mosquitos are observed, increase inspection frequency to after every 0.1 -inch or larger storm event. • Maintenance when needed Damage to structural components such as weirs, inlet or outlet structures Repair or replace as applicable. • Inspect annually. • Maintenance when needed. References American Mosquito Control Association. http://www.mosquito.orgj California Storm Water Quality Association (CASQA). 2003. Municipal BMP Handbook. https://www.casga.org/resources/bmp-handbooks/municipal-bmp-handbook County of San Diego. 2014. Low Impact Development Handbook. http://www.sandiegocounty.gov/content/sdc/dpw/watersheds/susmp/lid.html San Diego County Copermittees. 2016. Model BMP Design Manual, Appendix E, Fact Sheet FT -4. http://www.proiectcleanwater.org/index.php?option=com content&view=article&id=250&Itemid=220 4- INSPECTION AND MAINTENANCE CHECKLIST FOR FT -4 DRY EXTENDED DETENTION BASIN PAGE 5 of 5 Description of Maintenance Conducted w m 0 Maintenance Recommendation ❑ Make appropriate corrective measures such as adjusting irrigation system, removing obstructions of debris or invasive vegetation, or repairing/replacing clogged or compacted soils.* ❑ Other / Comments: j ❑ Make appropriate corrective measures such as removing debris obstructions, clearing underdrains, or flushing fine sediment from aggregate layer when applicable.* El Other / Comments: ❑ Apply corrective measures to remove standing water in BMP when standing water occurs for longer than 24-96 hours following a storm event.** ❑ Other / Comments: Threshold/Indicator Standing water in above -ground BMP for longer than 24-96 hours following a storm event* Standing water in underground BMP for longer than 24-96 hours following a storm event* Presence of mosquitos/larvae For images of egg rafts, larva, pupa, and adult mosquitos, see http://www.mosquito.org/biology Maintenance Needed? ❑ YES ❑ NO ❑ N/A SD -A Tree Wells cif Standard Insprectivn and Maintenance The property owner is responsible to ensure inspection, operation and maintenance of permanent BMPs on their property unless responsibility has been formally transferred to an agency, community facilities district, homeowners association, property owners association, or other special district. Maintenance frequencies listed in this table are average/typical frequencies. Actual maintenance needs are site-specific, and maintenance may be required more frequently. Maintenance must be performed whenever needed, based on maintenance indicators presented in this table. The BMP owner is responsible for conducting regular inspections to see when maintenance is needed based on the maintenance indicators. During the first year of operation of a structural BMP, inspection is recommended at least once prior to August 31 and then monthly from September through May. Inspection during a storm event is also recommended. After the initial period of frequent inspections, the minimum inspection and maintenance frequency can be determined based on the results of the first year inspections. ., ., .,.c�t%ce Tree health r.`rc Ac tt{% Pe`c taxa neort 1pi'cltr i(' Routine actions as necessarc, to maintain tree health. • Inspect monthly. • Maintain when needed. Dead or diseased tree Remove dead or diseased tree. Replace per original plans. • Inspect monthly. • Maintain when needed. Standing water in tree well for longer than 24 hours following a storm event Surface ponding longer than approximately 24 hours following a storm event may be detrimental to tree health Loosen or replace soils surrounding the tree to restore drainage. • Inspect monthly and after every 0.5 -inch or larger storm event. if standing water is observed, increase inspection frequency to after every 0.1 -inch or larger storm event. • Maintain when needed. Presence of mosquitos/larvae For images of egg rafts, larva, pupa, and adult mosquitos, see http:/ /www.mosquito.or biology Disperse any standing water from the tree well to nearby landscaping. Loosen or replace soils surrounding the tree to restore drainage (and prevent standing water). • Inspect monthly and after every 0.5 -inch or larger storm event. If mosquitos are observed, increase inspection frequency to after every 0.1 -inch or larger storm event. • Maintain when needed BMP Training Log Stormwater Management Training Log and Documentation Project Name: Parkway Summit Nantage Point Attendee Roster (Attach additional forms if necessary) Date Mo/Day/Yr Personnel Trained Type of Training Trainer Inspection & Maintenance Log Stormwater Management Training Log and Documentation Project Name: Parkway Summit Nantage Point Attendee Roster (Attach additional forms if necessary) Date Mo/Day/Yr BMP Type & Location Inspector Name Description of BMP Condition Maintenance & Repair Maintenance or Repair Date & By Whom Attach photos and receipts for maintenance, repair, cleaning and disposal.