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Storm Water Trash Facilities Maintenance Agreement 2023-00543473/2/23, 5:17 PM RECORDING REQUESTED BY: CITY OF POWAY AND WHEN RECORDED MAIL TO: CITY CLERK CITY OF POWAY PO BOX 789 POWAY, CA 92074 APN : 317-281-11 Batch 15414562 Confirmation DOC# 2023-005434 7 1111111111111111111111111111111111111 lllll llllllllll 111111111111111111 Mar 02, 2023 02:47 PM OFFICIAL RECORDS JORDAN Z. MARKS, SAN DIEGO COUNTY RECORDER FEES: $0.00 (S82 Atkins : $0 .00) PCOR : N/A PAGES : 19 (THIS SPACE FOR RECORDER'S USE) STORM WATER TRASH FACILITIES MAINTENANCE AGREEMENT 13000 Danielson St (TA22-0005) 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 Trash Facilities is entered into between the Property Owner(s) POMERADO LEASING NO. 4 LP, (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"). WHEREAS, in accordance with the California Regional Water Quality Control Board San Diego Region Order Number R9-2017-0077, (hereinafter referred to collectively as "Trash Amendment"), 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 and trash generation from the PROPERTY be managed by the use of the following Storm Water Trash Facilities which are identified as "Best Management Practices" or "BMPs": One (1) Flexstorm Connector Pipe Screen located near the center of the westerly boundary of the property line as shown on Exhibit "B". 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 "C". Because additional impervious area may require the addition of or alteration of storm water facilities and strategies, no impervious area or additional drains may be added to the project site without pr ior approval from the City Engineer. WHEREAS, OWNER's representations that the BMPs will be maintained have been relied upon by SWTFMA (TA22-0005) ,22-087 https ://gs.secure-recording.com/Batch/Confirmation/15414562 1/? RECORDING REQUESTED BY: CITY OF POWAY AND WHEN RECORDED MAIL TO: CITY CLERK CITY OF POWAY PO BOX 789 POWAY, CA 92074 (THIS SPACE FOR RECORDER'S USE) APN: 317-281-11 STORM WATER TRASH FACILITIES MAINTENANCE AGREEMENT 13000 Danielson St (TA22-0005) 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 Trash Facilities is entered into between the Property Owner(s) POMERADO LEASING NO. 4 LP, (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"). WHEREAS, in accordance with the California Regional Water Quality Control Board San Diego Region Order Number R9-2017-0077, (hereinafter referred to collectively as "Trash Amendment"), 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 and trash generation from the PROPERTY be managed by the use of the following Storm Water Trash Facilities which are identified as "Best Management Practices" or "BMPs": One (1) Flexstorm Connector Pipe Screen located near the center of the westerly boundary of the property line as shown on Exhibit "B". 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 "C". Because additional impervious area may require the addition of or alteration of storm water facilities and strategies, no impervious area or additional drains may be added to the project site without prior approval from the City Engineer. WHEREAS, OWNER's representations that the BMPs will be maintained have been relied upon by SWTFMA (TA22-0005) :i.2 -087 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. Incorporation of Recitals. The recitals set forth above are incorporated herein by this reference and constitute a part of this AGREEMENT 2. Maintenance of Storm Water Trash 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 BM Ps , 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. 3. 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. 4 . 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 covered by OWNER 's indemnity provisions below. If CITY performs any of the MAINTENANCE ACTIVITIES, after CITY has demanded that SWTFMA {TA22-0005) Page 2 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. 5. 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 upon reasonable 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. 6. 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 7. 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 (specifically including but not limited to OWNER's alleged noncompliance with the Trash Amendment or the Stormwater Ordinance), 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. 8. Allocation of Costs. Following the sale or transfer of any 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. 9. Agreement Binds Successors and Runs With the PROPERTY. It is understood and 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 SWTFMA (TA22-0005) Page 3 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. 10 . 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 . 11. 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 orOWNER'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 . 12. 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 . 13. Attorney's Fees. The prevailing party in any action or proceeding to enforce or interpret the terms of this Agreement shall be entitled to recover all of its reasonable litigation expenses, including its expert fees, attorneys ' fees, courts costs, arbitration costs, and any other fees . IN WITNESS WHEREOF, the parties have executed this Agreement on the dates set forth hereinafter. OWNER: POMERADO LEASING NO. 4 LP Whitmann, Inc. a California Corporation , Its General Partner Date : ____,3/__,,_~_Z_L __ (signature must be notarized) SWTFMA (TA22-0005) Page 4 \{t,flG,faJ p,s GALIFORNIA NOTARY ACKNOWLEDGEMENT 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-V "1{\_ f1'1A',{1, ~ County of k/LcfeC1 ·1~ (insert name and title of the , 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/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the person(s), or the entity upon behalf of wh ich the person(s) acted, executed the instrument. l!ZR?t~U!s I certify under PENAL TY OF PERJURY under the laws of the State of'~ that the foregoing paragraph is true and correct. WITNESS my hand and official seal. JONATHAN YEUNG NOTARY PUBLIC REGISTRATION# 7712004 COMMONWEALTH OF VIRGINIA (seal MY COMMISSION EXPIRES ..._ __ .,.A_u.,.G ... u.,.s ,..r 3.,.1 ... ,_2oioii2 .. 5 __ __ Date : _7(~~_/{Z_L_ Direct r of Development Services (signature must be notarized) APPROVED AS TO FORM: APPROVED AS TO CONTENT: 0 7fi ~~ V Alan Fenstermacher City Attorney Attachments 1. Certificate of Acceptance 2. Exhibit A -Legal Description of Property 3. Exhibit B -Locat ion of BMPs 4. Exhibit C -Operation and Maintenance Plan SWTFMA (TA22-0005) Page 5 CALIFORNIA ALL-PURPOSE ACKNOWLEDGMENT CIVIL CODE§ 1189 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 August 3, 2022 before me, ___ Y_v_o_n_n_e_M_a_n_n_io_n_, _N_o_t_a~ry~P_u_b_li_c ____ _, Date Here Insert Name and Title of the Officer personally appeared ______ R_o-'---'-b..:..e_rt;_J;_._M_a_n_is_;;___ ______________ _ 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/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the person(s), or the entity upon behalf of which the person(s) acted, executed the instrument. ........ l YVONNE MANNION Notary Public -California 2 San Di~o County ~ Commission # 2363699 - y Comm. Expires Ju! 1, 2025 Place Notary Seal Above I certify under PENAL TY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct. WITNESS my hand and official seal. ----------------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 Document: Strom Water Trash Facilities Maintenance Agreement TA22-0005 Document Date: ___________________ 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): ______ _ □ Corporate Officer -Title(s): ______ _ □ Partner -□ Limited □ General □ Partner -□ Limited □ General □ Individual □ Attorney in Fact □ Individual □ Attorney in Fact □ Trustee □ Guardian or Conservator □ Trustee □ Guardian or Conservator □Other: ______________ _ □ 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 Trash 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 5 of the attached document dated 7 / S"" ) 2 0 -Z...--s,. , from POMERADO LEASING NO. 4 LP, 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: ~ti+-/ U __ / ~_7--__ _ CITY OF POWAY Seal : obert J. Mani Department of Development SWTFMA (TA22-0005) Exhibit A LEGAL DESRIPTION -13000 DANIELSON STREET, POWAY CA LEGAL DESCRIPTION Real property in the City of Poway, County of San Diego, State of California, described as follows: LOT 94 OF CITY OF POWAY TRACT 85 -04 , UNIT 2, IN THE CITY OF POWAY, COUNTY OF SAN DIEGO, STATE OF CALIFORNIA, ACCORDING TO MAP THEREOF NO. 12572 FILED IN THE OFFICE OF THE COUNTY RECORDER OF SAN DIEGO COUNTY, FEBRUARY 28, 1990 AS FILE NO. 90-107515 OF OFFICIAL RECORDS . APN: 317-281-11-00 I I ~ I >-I t;j I!: vi I ~ isl "' ;:§ I Exhibit B Pomerado Leasing No. 4 LP 13000 Danielson Street, Poway, CA 92064 APN 317-281-11-00 COMMUNITY ROAD -------------- -------------------- -----I --~--1------- ~I i l I -\ --7 I / I: I I I I I I I I I I I I I I I . I ►2 I I I / I I I I I I I I I I I ' ' ! ! ' I : I i H i i'I I/ I I I -I I i IL Ji?j 1111 I ~ • . • ! ! i i ' 1 i ' i ' M IJ l•I .,.,;; . ! , . i . _j • i . 1 J 1 . 1 1 1, i CONNECTOR PIPE SCREEN MFG: ADS FLEXSTORM 62PCSDH-S I~ ~ I~ r I Exh,"bit C. PROTECTIVE BYPASS LID ADS FLEXSTORM: CONNECTOR PIPE SCREEN (CPS) 12 GA U-CHANNEL STIFFENER (Typ.) 3/8" WEDGE ANCHOR BOLTS SLOTTED HOLES FOR SLOPED CATCH BASIN FLOORS CPS L 14 GA 5 MM PERFORATED STAINLESS STEEL 50% OPEN AREA CPS U CPS U-EXT SIZING TABLE MINIMUM BYPASS RATINGS for lid designs with 6" Freeboard CPS Flow Rates by Model Q,,= =cA,=n..{igh B (bypass 8 (bypass 8 (bypass B (bypass B (bypass height)= 4" height)= 6" height)= 8" height) = 10" height) = 12" Model Screen Screen Ascreen {Net Q,creen Flow Lbypas s Q4 H• Q6 Hs Q8 Ha QlO H,o Q12 H12 Length Height open area) Rate (els) (ft) 3L18H-Bypass-Shape 3 18 1.80 8 .72 3.00 3.93 8 5.52 7 6 .81 6 7.77 s 13.19 10 4L18H-Bypass-Shape 4 18 2.45 11.84 4 .00 5.24 8 7.35 7 9.08 6 10.36 5 17.58 10 SL18H-Bypass-Shape s 18 3 .09 14.96 5.00 6.55 8 9 .19 7 11.35 6 12.95 s 21.98 10 Determine CPS model number based on screen length and height -bypass height -and screen shape. For example Model 3L18H-8-U is 3' wide x 18" tall, has 811 bypass height, and is "U" shaped. Custom lengths and heights are available for any catch basin. *LA County approved *Full Capture Device as Certified by the California Regional Water Quality Control Board (CRWQCB) ALL PRODUCTS MANUFACTURED I BY I NLET ~ PIPE PROTECTION, !NC l~ 't,il!ulf" A DIV!Sl □N OF ADS , INC . 1 :-.'If \./\J\J.INLETFIL TER S.C OM (866) 287-8655 PH . (630) 355-3477 FX !NF □@INLETFIL TERS .COM ~ CI CPS Fl~x storri CPsl ': CPS FLOW CALCULATIONS ; STANDARD LENGTHS, VARIABLE BYPASS HEIGHTS I ADS CPS units are standardized with a pre-set Length of screen (L). The height of the bypass is the variable used to confirm that the total O,,yp.., for the CPS with Lid design exceeds the Max Q10 for a certain CB width. The sizing table below shows the resultant O,,vpass for the various B (bypass heights). Oefinining the Orifice bypass equation for CPS with deflector lids Cli,ypass = CbypassAbypass ✓ 29 H Cbyp m == .6 (coeffi ci ent) g=32.2ft/s' At,yp.in :;: L (len r th of s.crun) X h (byp.in height) H = depth of water to centroid of bypass CPS U SIZING TABLE MINIMUM BYPASS RATINGS for lid designs with 6" Freeboard CPS Flow Rates by Model Q,_ =c.A-~./¥ B (bypass B (bypass B (bypass B (bypass B (bypass height)= 4" height)= 6" height)= 8" height) = 10" height) = 12" Model Screen Screen Ascreen(Net Q,"''" Flow lt,vpass Q4 H• Q6 H• QB Ha QlO H,o Q12 Length He ight open area) Rate (cfs) (ft) 3L18H-Bypass-Shape 3 18 1.80 8 .72 3 .00 3.93 8 5 .52 7 6 .81 6 7.77 5 13.19 4L18H-Bypass-Shape 4 18 2.45 11.84 4 .00 5.24 8 7.35 7 9 .08 6 10 .36 5 17.58 SL18H-Bypass-Shape 5 18 3 .09 14.96 5.00 6.55 8 9.19 7 11.35 6 12 .95 5 21.98 Determine CPS model number based on screen length and height Bypass ratin8S in Black are for 3.5' Vb Minimum Catch Basin De pths Bypass ratings in Red are for 4' Vb Minimum Ca tch Bas in Depths -bypass height -and scree n shape. For example Model 3L18H-8-U is 3 ' wide x 18" tall, has 8 " bypass height, and is "U" shaped. Custom lengths and heights are available for any catch basin . Example Selection and Calculation: Assume we have a 7' wide catch basin with a depth Vb of 3.5' and 18" connector pipe. The Max Q1 is 1.2 CFS and the Ma x Q10 is 5.3 CFS per the hydrology study table to the right . Select the appropriate screen to pass the 1 year flow then determine the minimum bypass height required to pass the 10 year flow . The 3L18H-6B screen (highlighted in green) passes 8 .52 CFS far exceeding the 1.2 CFS requirement. According to the sizing table that un it will bypass 5.52 CFS with a 6" bypass height ba sed on the Orifice Flow bypass equation which is greater than the required 5.3 CFS maximum 10 yr flow seen by the 7' wide catch basin. The bypass is calculated a s follows : Ooypass = CbypassAbyp ass JzgH Cbypa ss = .6 (orifice coefficient) g= 32 .2 ft/s2 Abypm = L (lengthofmeen)X h (by pmhe;ght) = (3 X 6/12) = 1.5 ft2 H = depth of water to centroid of bypass (m a intaining 6" freeboard) We need to check Clearance and determine the H Clearance= Vdepth-Hscreen-Hbypass-curb height (must always be > 4") Clearance= 42"-18"-6"-8"=10" H = Hbypass/2 + Cl e arance -6" free board (sized conservatively) H = 6/2 + 10 -6 = 7" or .583 ft Finally, Ot,ypass = Cbypa u Abypass .J2iii 0,,ypm = .6 x 1.5 ✓2 X 32. 2 X . 583 = 5.52cfs H,, 10 10 10 icatch Basin Ratings for one year and ten year rain events as determined by LA County hydrology studies CB wi dth MaxQ10 MaxQ1 (ft) (els) (els) 3.5 2.8 0.6 7 5.3 1.2 10 7.5 1.7 14 10 2.2 21 13.9 3.1 28 17.3 3.8 ADS -FLEXSTORM CONNECTOR PIPE SCREEN (CPS) WORK INSTRUCTIONS 1.0 Product Selection: Installer to determine which CPS Model to install based on 1. Flow Ratings, 2. Bypass Requirements, 3. Location of Connector Pipe inside the catch basin (see Product Selection Guide). 2.0 Materials: All FLEXSTORM CPS are comprised entirely of 304 stainless steel and brought to the field pre-configured for easy assembly once Product Selection is confirmed; All Models are supplied with vertical upright mounting brackets which accept qty (4) 3/8" x 3" minimum stainless anchor bolts. All bypass lids require a qty (2) 3/8" x 3" min stainless anchor bolts. Mounting brackets are equipped with slotted holes to allow for varied contours on walls and sloped floors. 3.0 Installation of Base Model: Drop CPS through the manhole opening. Position the CPS evenly spaced around the connector pipe ensuring a minimum of 4" spacing away from any corners. Loosen the bolts in the slotted holes which connect the screen to the upright mounting brackets until the bottom is flush with the floor. Tighten the bolts and mark the hole locations on the wall for the stainless anchor bolts. Drill holes and hammer the bolts in place and secure the CPS using stainless nuts. If the bottom of the base exposes more than a 5 mm gap then an additional base face strip may be fastened to the base channel using stainless tek screws or rivets. This base face strip matches the length and contour of the primary base. 3.1 Installation of Bypass Lid: If the bypass lid is required verify the minimum bypass height needed and mark the "B" bypass height location on the wall directly above the base uprights. Lift the lid in place and mark the hole locations for the lid mounting brackets. Drill holes and hammer the bolts in place and secure the lid with the stainless nuts. 4.0 Removal of CPS: In certain locations, the CPS may need to be removed in order to provide increased accessibility through the manhole entry. In such cases, the CPS would utilize the "Quick Release" wall mount bracket set and standard CPS flanges. See the installation drawing labeled Removable CPS Detail for step by step instructions. In standard installations, the CPS can be removed by simply loosening the 3/8" anchor nuts that secure it to the wall. 5.0 Warranty: ADS -FLEXSTORM warrants the CPS material to be free of defects and guarantees base framing integrity for a period of 3 years from installation date. ADS -FLEXSTORM CONNECTOR PIPE SCREEN (CPS) MAINTENANCE GUIDELINES FLEXSTORM suggests that its Connector Pipe Screens (CPS) be maintained per this modified set of conditions from the LA County CPS Standards. FLEXSTORM advises that catch basins be cleaned out at least 2 times per year and/or if debris has filled above a 40% level inside of the catch basin. Sites with large amounts of foliage, high sediment loads, or smaller CPS devices might need to be cleaned more frequently. Maintenance Conditions and Maintenance Standards: The Following are deficiencies in maintenance conditions and their corresponding maintenance standards which shall apply to the Connector Pipe Screen. The cleanout of each CB shall meet the maintenance standards listed as follows: Description of Maintenance Actions 1 Clear trash and debris located immediately in front of curb opening or side opening of CB, and on top or between metal grates of grated CB. 2 Remove Vegetation growing across and/or blocking the basin opening. 3 Remove all Trash and debris and vegetation from inside the Catch Basin. 4 Remove Trash and debris in the connector pipe opening, upstream or downstream. 5 Knock off/Remove all Debris that covers the perforated openings of the connector pipe screen 6 Ensure there is no Standing Water inside of catch basin (indicates the device is not properly draining) Trash and debris shall include, but is not limited to, mud, vegetation, and garbage. Upon completion of a cleanout operation at a CB and before leaving it, the Contractor shall sweep the top surface of the CB and the area 2 feet around the CB, and shall remove any trash and debris resulting from the cleanout operations. No debris is to be left at a CB for future pick-up. Method of Removal: All trash and debris required to be removed from the CBs shall be removed in a manner to be determined by the Contractor. This can be done by hand or with a truck mounted vacuum. If entering the catch basin ensure that local confined space entry procedures are followed. The Contractor shall not allow any trash or debris to enter the connector pipe or main line as a result of the cleanout operations. Debris Disposal: All trash and debris removed under this Contract shall become the property of the Contractor and shall be legally disposed of away from the CB sites. The Contractor is responsible for proper disposal of the trash and debris, including obtaining approvals from all jurisdictional agencies, as applicable. The contractor shall be responsible for contacting and coordinating with local Animal Care and Control for pickup and disposal of dead animals. However, the Contractor shall be responsible for removing any dead animal from inside a CB. D C B A _4 3 Deflecto,r, -i-1 ~~ I il i *Hb *Hs 2" Horizontal 1 1/4" X 1/2" X 1/2" 12GA Li-Channel Stiffener (Typ .) Vertical 1 1/4" X 1/2" X 1/2" 12GA Li-Channel Stiffener (Typ.) ELEVATION VIEW N.T .S . 1 1/2" X 1 1/2" 13GA Mounting Bracket (Typ.) 14GA5mm Perforated Screen 50% Open 2 NOTES: 1. All Materials Are Type 304SS Unless Otherwise Noted 2. All Horizontal And Vertical Stiffeners Shall Be Spot Welded@ 4"C .C . (Max) To Perforated Screen 3 . For Catch Basin Uneven Floor Extension Panel Detail See Sh. 3 LOS MIGELES COUNTY DEPARTMENT OF PUBLIC wom<9 !JACCEPTED 0 MAKE CORRECTJONS NOTED 0 REVISE CAl.CU.ATKlNS p REJECTED F£\l'EW IS PERFORMED IT n£ DEPNmEMT l0 EHSlJIE Tl£ eotmlACTt>R'S GOEJW. COHFORMN«:f wnt n£ DE.SIGH CONCEPT Of TlE PAO.ECT NCI GEHEAAl cc» Pt.JAJ«:E wnt THE SPECFlCAJlOKS. l11E COMTlVCTOR IS SOULY A:ESPOHSIBU! FOR lHE CORREc:THESS fl- m.lENSl0f,IS, PROP£R cacstRUC110N NIJ "'5W)A. TIOtl METHODS,N#:J f()ft N.FUJtGAU. cc,mw::nw. ltEOUIREMENU. ACCEPTANCE IHDICAJlD HEREOM DOES NOT RE.EYE nE c:o,mw:;raflOI TlE.SE a... -w. Steven Dickson M!!07-28-16 [ -3/4" ----~r 3/8" X 3" Wedge Anchor, 2 Per Connection (Typ .) ~i '•;;>;17 2" (Typ .) Ex . Catch L / Basin Wall 13GA Mounting Bracket (Typ .) R=10" ------7 --=--&..m---(Typ.) I I I I I I I / A-.. r· -,y~:~e~~tail A t J I) \ I ,, /' 5/16" x 1" Hex Bolt, Washer, And Lock Nut, 2 Per Connection '~ITI ·,-1 1 ,::.~-1(2"' "Hs" 3/4" (Typ .) 14GA 5mm Perforated Screen 50% Open *L PLAN VIEW N.T .S . *See Appendix A-1 And CPS Sizing Table For Hb, Hs, And L Values 4 3 1 1/4" X 1/2" X 1/2" 12GA Li-Channel Stiffener (Typ .) 2 DETAIL A N.T .S . ADS FLEXSTORM CPS U D C B A D C B A ~ 3 Oeflector,S~ 8888888888888&8 -~ I • 1 14GA5mm ~ ~~rated\ I / ,.. Screen 50% 2 *Hb Open Spot Weld (Typ .), See Note 2 Hereon ii. 0 ., Hs/2I1 : *Hs 11~· {~~ 211 w B i~. I ?f, ~'ii''i.i"ei"~~·~ Vertical 1 1/4" x 1/2" x 1/2" 12GA U-Channel Stiffener (Typ .) il'!.~~ ~.'<r:('i~¾~~~~#~~~~ --------, ' 1 1/2" X 1 1/2" Center Stiffener / '\ D I= Mounting I \ . '-~~==' I& Bracket •li&w.i"'-<'lit~.,<.ili\<l!f~CL (Typ .) 13GA 'U ' \U U/ ' , \ J NOTES : 1. All Materials Are Type 304SS Unless Otherwise Noted 2 . All Horizontal And Vertical Stiffeners Shall Be Spot Welded @4"C.C . (Max) To Perforated Screen 3 . Center Stiffener Required When S ~ 3'-0" 4 . Top And Center Base Support Brackets Required When S ~ 3'-0" 5. 3" Base Support Bracket At The Inflection Point Requ ired For All Units 6 . For Catch Basin Uneven Floor Extension Panel Detail See Sh . 4 5/16" x 1" Hex Bolt, Washer, And Lock Nut, 2 Per Connection Horizontal 1 1/4" X 1/2" X 1/2" 12GA U-Channel Stiffener (Typ .) ~3" Base Support ',._ __ __....,,"-12" Center Base Support Bracket (Typ.), Bracket (When S ~ 3'-0") See Detail D, Sh. 3 See Detail C, Sh . 3 1 1/4" X 1/2" X 1/2" 12GA U-Channel Stiffener (Typ .) r-v1-7 I I ri3/4" I LOS AN GElES COUNTY DEPARTMENT OF PUB UC WOffl<9 !J ACCEPTED □ MAKE CORPECTlONS NOTED D RensE CAl.0..1.AllONS C REIECraJ ELEVATION VIEW N .T.S . .,ou,..,...,._ ACcEPTAHCt .. -TED "'"'°" See Detail B Sh . 2 '\, DOES MOT REI.E\'E 1ME. CCNTMGTQA Qf ntESi 08IJ. 1 -l't. Steven Dickson ~ __ " R-10" y-------, Top Support----/ l.\ (Typ .) I Bracket, 1 See Sh . 2 i 3/8" X 3" Wedge Anchor (Typ .) 14GA5mm Perforated Screen 50% Open r;r.n.t1~i (Typ .) I ,!½\~,;\'!"'' 2" (Typ .)j 3/4" / l'-Ex. Catch (Typ .) I Basin Wall 3/8" X 3" Wedge Anchor, ¾-~. • ---~-----(~) , 112';~~£?.~~~r;~ S s,2 't\see Detail A I ~ DETAIL A N.T.S . 2 Per Connection (Typ .) ~----------*L ------------ PLAN V IEW N.T.S . *See Appendix A-1 And CPS Sizing Table For Hb , Hs , And L Values 4 I 3 Hereon 2 ADS FLEXSTORM CPS L D C B A ~ I 3 w 2 Deflector, See Sh . 5 NOTES : 1. All Materials Are Type 304SS Unless Otherwise Noted DI i Pertmated /see Note 2 . s---~-·Hb Open 2 . All Horizontal And Vertical Stiffeners Shall Be Spot Welded @4"C.C. (Max) To Perforated Screen 3. Center Stiffener Required When Se!: 3'-0" 4. Top And Center Base Support Brackets Required When S e!: 3'-0" Hs/2 *Hs l I ~~ ,l Cl~ 8 Horizontal 1 1/4" X 1/2" X 1/2" 12GA U-Channel Stiffener (Typ.) :fil~~-,;)1,l>l';•c= Vertical 1 1/4" x 1/2" x 1/2" 12GA U-Channel Stiffener (Typ .) ~~.6'.'i.~i<,~'!.!.".!l ......----/✓ ',\ I \ I ~ \ ft'l'N'!.WF ' u / ' '\3" Base s~:::--~\_12" Cente, Base Support Bracket (Typ .), Bracket (When Se!: 3'-0") See Detail D , Sh. 3 See Detail C, Sh . 3 ELEVATION VIEW N.T .S . 5. 3" Base Support Bracket At The Inflection Points Required For All Units 6. For Catch Basin Uneven Floor Extension Panel Detail See Sh. 4 11/2"x11/2" 13GA Mounting Bracket (Typ.) LOS ANGELES COUNTY DEPARTMENT OF PUB UC WORKS ID ACCEPTED B=~N01B) l 3/4" □ REJECTED DESIGM CONCEPT Of-THE P'RQ.ECT .AIG CE.NEAAI.. cc» _ -. PUAHCE W1H THE. SPECIF'ICAllONL fflE CONTIUrCJ'OA I ntE CCRflfCTNESS OI' RUCTIOHNGNST>UA- UJNGMI.- £ IHDICA.TtD HEREON DOES HOT~ TH£ CQNTIVriCTQR 0, THESE. 0iLJ. 3/8" X 3" Wedge Anchor, 2 Per Connection (Typ .) (Typ.) -1.Ex. Catch 6~·-•·•~J _!3~~~~~1 "~ -•• I _, 1 1/2" X 1 1/2" X "Hs" 13GA See Detail B, Sh . 2\ ~~m:~"'~ (Ttyp.) See Detail A1 :00:aven Dick s on ~ Hereon 5/16" x 1" Hex Bolt, 3/8" x 3" Washer, And Lock Nut, Mounting Bracket (Typ .) R=10,. Top Support "'✓- -__ 7 Bracket, ,· (Typ .) 1 See Sh. 2 / , Wedge Anchor 1 ~ ----., 2 Per Connection ''\ (Typ .) ' ---{ t, ') \ \' I I I \ ' ' ,:-•1 ) I ; __,,, I ✓/ s---------< i----S/2--~ 1 1/4" X 1/2" X 1/2" 12GA U-Channel Stiffener (Typ .) 14GA 5mm Perforated Screen 50% Open D C B A --------*L --------ADS FLEXSTORM I CPS U EXT A PLAN VIEW N.T.S. * See Appendix A-1 And CPS Sizing Table For Hb , Hs, And L Values 4 I 3 PLAN, ELEVATION, AND DETAIL 2 D C B A 4 / / / / Further to my last email, this ne w des ign is w orkable for mosquito abatement act ivities and is approved for use on our end (from a mosquito abatement standpo int). Thanks to all involved for the work and mod ificat ion to the device. 4 / 2 / HINGED LID SHOWN IN OPEN POSITION (REMAINS IN OPEN POSITION ON ITS OWN) ,LID BRACKETS SECURED TO / WALL WITH SS WEDGE ANCHORS I / ~STAINLESS STEEL HINGE WELDED TO LID AT EACH SUPPORT BRACKET I ALAMEDA COUNTY MOSQUITO ABATEMENT DISTRICT HINGED LID DESIGN AL L PR ODUCT : MAN UFA CT URED BY INLET & P IPE PR □TECT!Di'J , Jl >!C A D J VJS [□N OF ADS, Jl,JC . \,/\✓\•l.!NLETF I L TE RS.C OM C8 66 ) 287-8 655 PH ,630) 355-3 4 77 FX WFD@H<LETF IL TER S .c □M SIZE JFRAME TYPE--IDWG NO REV C I CPS IFLEXSTORM-CPS I A SCALf SHEET l OF l D C B A D C B Al 4 2 REMOVABLE CPS DETAIL STEP 1 STEP 2 STEP 3 STEP 4 I EASY LIFT HANDLE -L~J ■I -I 4 I 3 CPS FLANGE WALL MOUNTED QUICK RELEASE BRACKET 3/8" ANCHOR BOLTS ~ DRA)i-iN dgarb INSTALLATION INSTRUCTIONS 1. LOWER SCREEN INTO CATCH BASIN THROUGH MANHOLE OPENING. 2. RAISE THE UNIT ABOVE THE WALL MOUNTED BRACKETS. 3. MOVE THE UNIT TOWARDS WALL UNTIL FLANGES ARE FLUSH WITH WALL. 4. LOWER THE SCREEN ~3" UNTIL CPS FLANGES ARE CAPTURED BEHIND WALL MOUNTED BRACKETS. ENSURE BASE IS FLUSH TO CATCH BASIN FLOOR. 3/30/2015 CHECKED illLE QA MFG APPROVED I L._ SIZE DWG NO ---j REV C Removable CPS 1 SCALE SHEET l OF l 2 l D C IA