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301-CPH-Amendment 23 NOVEIvlBER 17, 1996 ............................ , ................................ TO : CITY MANAGER FROM : SUPPORT SERVICES COOP, DIN VIA : PUBLIC WORKS DIP, EChO 11 [ [ Mr. Simmons, Attached is a proposal for engineering design and permitting services for the Mill Creek Year I Drainage improvements. These services entail the necessary preparation of construction documents in two separate portions of the project. The first set of documents includes the Goldsboro School Joint Use Pond, crossing of 20th street, and ouffall of the pond to the existing 18th street ditch. The second set of documents includes the detention pond on the Sandefur and adjacent City property, interconnection to the Goldsboro pond, ouffall from the combined ponds, and (as a additive alternate) construction of a box culvert to connect to the Year 2 improvements. Upon review of the proposed agreement, it is in order and reasonable for the mount of work involved. It is recommended that the attached amendment agreement engineering services proposal be executed as follows: Amendment to Agreement No. Z6582.00 Engineering Fees: $ 67,596.00 Environmental Scientist: $ 2,500.00 Reimbursed Expenses: $ 1,790.00 Total: $ 71,886.00 If you concur, please place this on the City Commission agenda for consideration. If there are any questions, please contact me. RGH:cs xc: Purchasing Agent Street Superintendent ITEM k , Porter and Holmes November 15, 1996 ~k~ Post OFFICE BOX 2eoa SANFORD, FLORIDA 32772-2808 TEL 407-322-6841 TEL 407-831~S717 FAX #407-330~639 City Managor CityofSanford /~ [~ [ 300 N. Park Avonuo - P.O. Box 1788 Sanford, FL 32772-1788 RE: Proposal for Engineering Services Mill Creek Year 3 Drainage Improvements CPH Job No. Z6582.00 Doar Mr. Simmons: Attachod is our proposal for the engineering dosiOn and pormitting services for tho Mill Crook Your 3 Drainage Improvements. Per our moetings, we have spocifiod the production of two soparato sots of plans and construction contract documonts; on~ for tho Goldsboro School Joint Use Pond, tho crossing of 20th Street and tho outfall of the pond to the existing 18th Street ditch and culvert, and tho othor for tho dotontion pond to be built on tho Sandofur parcel and adjacent City lends, the intorconneetion sh'ucture to the Goldsboro pond, tho outfall from the combined ponds, and (as an additivo alternate) tho construction of a box culvert North from tho Sandofur pond ouffall to tho end of the Year 2 improvements. As in provions Yoar 1 and Yoar 2 design contracts: Bidding and construction administration is to boa separate contract, later. Proporty acquisition servicos aro to be an additional, reimbursablo, serdco under our contract -- I prosme we'll havo Carol Kirchhoffprovido thoso sorvicas as boforo -- we may need to discuss. Survey and soils (gooteelmical) are to bo provided by tho City, though wo'd like to roylow the senpo of tho proposed sotvices and provide input. We'vo already dono this with the survey, so as to get that work undorway. Please rovicw tho proposal, and if you havo any questions, we'd bo glad to meet with you and your staff. Thank you. Sincoroly, Jmos C. Branch, P.E. Sonior Vice President ICBdcb ~nclosuro co: Paul E. Portor, P.E., CPH Engineers, Sanford PeWr-~oim Sutch, E.I., CPH Engineers, Sanford 2,-301 AMENDMENT No. 23 To Agreement Dated December 17, 1987 For Final Design Engineering Services in Connection With Mill Creek Year 3 Drainage Improvements Between The City of Sanford, Florida And Conkiln, Porter and Holmes-Engineers, Inc. made on the y This Agreement /~ da of '¢)t>~'~'/Vt/'~'~', 1996 between the CITY OF SANFORD, FLORIDA (hereinafter called the CITY) and CONKLIN, PORTER AND HOLMES-ENGINEERS, INC, (hereinafter called the ENGINEER), is mutually agreed upon and declared an authorized Amendment to an Agreement dated December 17, 1987, between the parties, herein setting forth the scope, terms and conditions of the work herein authorized, In case of any conflict between this Amendment and the aforementioned Agreement of December 17, 1987, this Amendment shall govern for the work described herein. Section 1 Purpose of Amendment 1.1 General 1.1.1 This Amendment work is to provide Final Engineering Design for a portion of a program outlined in the Preliminary Engineering Report, Drawings, and the St. Johns River Water Management District Conceptual Permit previously completed by the ENGINEER for the CITY on Storm Water Management Facilities for Mill Creek / Cloud BranCh, 1.1.2 The detailed purpose is to provide final engineering designs, construction plans, Contract Documents, opinion of probable cost to construct, and permitting services for the Year Three improvements of the Mill Creek drainage improvement program. This Amendment consists of improvements to the system generally described as: a joint use detention pond at Goldsboro School, a, second, interconnected detention pond and outfall control structure west of Goldsboro School pond (partially on the Sandefur property, approximately at Mulberry Ave. extended, south of 18th Street), and continuation of the Year Two box culvert southward from 14th and Mulberry south to the proposed ponds. 1.1.3 It is anticipated that the CITY may provide the majority of the bidding and construction services for portions of the work selected for competitive construction bidding. It is also anticipated that the ENGINEER will provide at least some construction services to allow certification of completion of improvements to the St. Johns River Water Management District and provide other construction services. The scope of construction services that the CITY decides it wants the ENGINEER to provide will be subsequently negotiated and authorized under Section 3, Additional Services of the Engineer. Section 2 Scope of Final Engineering and Related Services 2.1 General Services of the ENGINEER 2.1.1 The ENGINEER agrees to perform professional services in connection with the project as hereinafter stated. 2.1.2 The ENGINEER will serve as the CITY's professional engineering representative in those phases of the project to which this Amendment applies and will meet, consult with, and provide advice to the CITY during the performance of these services. The ENGINEER will perform the services for the City Commission under the direction of the City Manager and supervision of the assigned Engineering Department representative. -2- 2.1.3 Based on previous phases of this project, it is anticipated that a SJRWMD Individual Environmental Resource Permit will be required and preparation of an application and supporting designs and calculations is included in the scope of this work for the wet detention facilities and the conveyance facilities to 14th and Mulberry Ave.. Also included is the preparation of a Corps of Engineers Dredge and Fill permit application and supporting exhibits for the box culvert construction along the existing ditch south from 14th and Mulberry Ave. and also for the section of the existing ditch that will be incorporated into and become part of the Goldsboro School Joint Use Pond. These areas along the existing creek (ditch) bottom are known to be jurisdictional from previous phase work. Wetlands jurisdictional limits in the pond area west of the abandoned railroad and south of 18th Street on the Sandefur tract and adjacent City lands are to be determined with SJRWMD and Corps of Engineers as part of this work through the services of an environmental scientist subconsultant. No engineering services for the preparation of dredge and fill or similar wetland permit applications for this westerly pond has been included in this scope of work because "jurisdiction" of the agencies is not known at this time at this pond location. This Agreement scope also does not include mitigation plans nor Protected Species Surveys as they are not anticipated as being required. Additional jurisdictional area scope work, mitigation planning, Protected Species Surveys, and Dredge and Fill or similar wetland permit work than outlined above, if required, will be considered an Additional Service under Section 3. Based on previous year projects, no permits or permit work are anticipated as being required from FDEP or Seminole County for any of the proposed project. Additional permit work other than that outlined above, if required and requested by the CITY, will be considered an Additional Service under Section 3. 2.1.4 Field surveys for preparation of Final Designs, location of borings, surveyed limits of wetland jurisdictional lines, and land or easement acquisition for the project will be provided by the CITY and are not included herein. The ENGINEER shall be entitled to rely upon the accuracy and completeness of such information. The ENGINEER will meet with and coordinate with the CITY'S surveyor, provide a general scope of work, assistance, give general direction, and make known his requirements to the surveyor prior to and during the performance of the surveyor's services. It is anticipated that the City's surveyor's work product will be provided to the ENGINEER as AutoCAD R12 or R13 drawing files as well as a reproducible of signed and sealed survey drawings 2.1.5 Soils borings, water table determinations and soils report in the area of the two ponds will be provided by the CITY. The ENGINEER will coordinate this work with the CITY'S geotechnical subconsultant, provide a general scope of work, assistance, give general direction, and make known his requirements to the geotechnical subconsultant prior to and during the performance of the surveyor's services. 2.1.6 Attached as Exhibit "A" is a Plan of Study which is hereby made a part of this Amendment showing in more detail the scope of work contemplated, the time estimates, and overall cost estimates for the scope of work generally described herein. 2.2 Pre-Final Design Coordination and Data Acquisition Services 2.2.1 Meet with regulatory agencies and utilities to discuss and obtain agency input into the scope, methods and details of construction, maintenance of traffic and stream flow, permitting or exemptions, temporary facilities and relocations, and other requirements of SJRWMD, the Corps of Engineers, the CITY and utilities. 2.2.2 Assistance to CITY on Goldsboro School Joint Use Pond including, meetings, rough and final pond sizing and computer analysis, preparation of drawings of alternate solutions and modifications, and review of joint use interlocal agreement and preparation of exhibits. 2.2.3 Coordination with CITY and land acquisition specialist including studies of land CITY currently owns west of railroad and additional land needed for pond. Also included is coordination with CITY and Environmental scientist regarding the Sandefur tract. 2.2.4 Coordination with CITY and surveyor and meetings regarding scope of the required survey work to be performed by the CITY's surveyor. 2.2.5 Coordination with land acquisition specialist on status of existing work and outlining additional land needed south of 18th Street and west of the railroad and any land or easements needed from ponds north to 14th and Mulberry. Services of land acquisition specialist will be provided as an Additional Service under Section 3 of this Amendment. 2.2.6 Engineering studies including two alternate solutions (larger and smaller ponds west of railroad) and computer analysis including Goldsboro joint use pond. 2.2.7 Evaluation of alternatives including effect on downstream facilities. Recommend to CITY the preferred solution and additional land needed including amount of Sandefur tract. 2.2.8 Modify pond solution, study and evaluate in accordance with changed land acquisition progress or final result. 2.3 Final Design Services: Phase III (Goldsboro Joint Use Pond and pond west of Railroad; and additive bid alternate of conveyance facilities from 14th and Mulberry south to ponds). 2.3.1 Engineer will serve as City's professional Engineering representative and will meet, consult and provide advice to CiTY during the performance of these services. 2.3.2 Engineer will describe the general scope of surveying services including instructions, review and coordination of surveying work being done by CITY employed surveyor. Request flagging of wetlands jurisdictional line, of utilities and borings for surveying. 2.3.3 Engineer will describe the general scope of soils work including instructions, review and coordination of CiTY employed soils firm for borings, water table data and recommendations needed in pond areas. 2.3.4 Meet with St. Johns River Water Management District staff, Corps of Engineers, the CITY and the utility companies. The purpose of the meetings is to discuss permitting, erosion and silt control plans, dewatering, wet detention, pollution abatement facilities, wetlands jurisdictional areas, maintenance of stream flow, details of the construction and to determine utility conflicts and relocations required. 2.3.5 Field inspections, plan research, coordination concerning utilities' locations in railroad right-of- way and pond areas and along west side of Mulberry Ave. 2.3.6 Review soils borings and recommendations and final survey data. 2.3.7 Sketch rough geometry, depth, contours and details of ponds and conveyances into and out of ponds including equalizer culverts and control structures and field check. 2.3.8 Review and finalize the alignment for the box culvert from the pond north to 14th & Mulberry Ave. taking into account utility conflicts and relocations. Field check and mark on prints. 2.3.9 Review local lateral drainage and local drainage improvements from 20th Street north through ponds and north to 14th and Mulberry including pollution abatement possibilities along the route. Field check and mark on prints. 2.3.10 Determine junction box/pollution abatement/conflict structures and inlet locations and details. 2.3.11 Size required new local culverts tributary to the proposed system and other miscellaneous culverts and control structures. 2.3.12 Finalize Mill Creek ponds, conveyances, grade lines, control structures, and lateral drainage and re-run computer program for Phase III total final project. 2.3.13 Design the interconnectlon structures between the two proposed detention ponds and between the Goldsboro School Joint use Pond and the tributary southerly portion of Mill Creek, up to a location South of 20th Street. 2.3.14 Prepare final design plans for the proposed ponds, interconnection structures, tributary minor local drainage systems and site restoration after construction. It is intended that the final plans allow the construction of the proposed improvements in two phases; the first being the joint use detention pond at Goldsboro School and the improvements where Mill Creek crosses 20th Street, along with a temporary pond outfall to the existing 18th Street ditched portion of Mill Creek, and a second phase consisting of the detention pond on the Sandefur and adjacent CITY owned lands, the interconnecting structures between this detention pond and the joint use pond on Goldsboro School, the outfall/control structure for the pond system and the extension of box culvert northward to connect with the facilities being built under the Year Two program. The purpose of the phasing is to ensure that the joint use pond at Goldsboro be in place within the time limits stipulated in agreements between the CITY and the Seminole County School Board to allow the construction of the Goldsboro pond. 2.3.15 Structural design of structures including, control structure out of ponds, and miscellaneous head walls, wing walls and junction structures. 2.3.16 Erosion and sedimentation control design at inlets, outlets and lateral drainage locations. 2.3.17 Preparation, supervision, and office and field checking of the plan sheets as identified in the attached Plan of Study. 2.3,18 Prepare Contract Documents and Specifications including bidding documents, general conditions, special conditions, and specifications for review by CITY staff and attorney. Two sets of Contract Documents matching the two sets of construction drawings described in 2.3.14 above are anticipated. 2.3.19 Prepare SJRWMD Individual Environmental Resource Permit Application, calculation package, and documentation for the permit application. See also 2.1.3, 2.3.5, and 3.1.14. 2.3.20 Prepare Corps of Engineers Dredge and Fill permit application for existing ditch from 14th and Mulberry to 18th and Mulberry and for the section of the existing ditch to be incorporated into and become part of the Joint-Use Pond. Prepare 81/2" x 11" drawings and dredge and fill quantities as required by the Corps of Engineers Nationwide Permit requirements. See also 2.1.3, 2.3.5, 3.1.14 and 3.1.15. 2.3.21 Prepare quantities and opinion of probable cost to construct the improvements. 2.3.22 Provide 10 sets of prints of the drawings and other documents for checking, CITY review and approval, and for permitting during the course of the project. -5- Section 3 Additional Services of the Engineer 3.1 If authorized by the CITY, the ENGINEER shall furnish or obtain from others the following additional services, or the CITY may provide these services separately or directly with the provider. Such additional services will be paid for by the CITY as outlined in Section 5. 3.1.1 Preparation of permit applications other than those specified in Section 2. 3.1.2 Bidding services. 3.1.3 Administration of construction services and construction inspection services. 3.1,4 Additional services due to significant changes in the scope of the project or its design including, but not limited to, changes in size, complexity, character of construction or due to time delays in initiating or completion of the work as described herein. 3.1.5 Provide, through subconsultants, surveying, electrical, soils, environmental scientist, environmental jurisdictional or pertaining services, real estate and land or easement acquisition services, construction quality control testing, or other subconsultant services, not included in the scope of this work, if requested or authorized in writing by the CITY. 3.1.6 Except as otherwise provided herein, services or additional costs associated with revising previously accepted studies, reports, or other documents when such revisions are due to causes beyond the ENGINEER's control. 3.1.7 Additional services resulting from public protests. administrative hearings, or similar matters. 3.1.8 Preparing to serve and/or serving as an Expert Witness for the CITY in any litigation, public hearing, condemnation proceeding, right-of-way or easement acquisition or negotiation, or other legal / administrative proceeding. 3.1.9 Furnishing additional sets of prints of the drawings and other documents beyond those designated in Section 2 and the attached Plan of Study. 3.1.10 Additional engineering services required by revisions to regulations (after the date of this Amendment) as applicable to the Florida Department of Environmental Regulation, the St. Johns River Water Management District, Corps of Engineers, Seminole County, or other regulatory agency requirements. 3.1.11 Additional services in connection with the project including services normally furnished by the CITY as described in Section 4 herein and services not otherwise provided for in this Agreement. 3.1.12 Investigations involving detailed consideration of operations, maintenance and overhead expenses including preparation of operating and maintenance manuals, feasibility studies, appraisals and valuations. 3.1.13 Additional engineering or environmental scientist subconsultant services in connection with regulatory agency-required wetland jurisdictional areas than anticipated and included in the described scope or any required mitigation plans. -6- 3,1,14 Protected species surveys in connection with Saint Johns River Water Management District and/or Army Corps of Engineering permitting process. Section 4 The CITY'S Responsibilities 4.1 The CITY will: 4.1. I Advise the ENGINEER of his requirements for the project and designate a person to act as the CITY's representative with respect to the work to be performed under this Amendment, and such person shall have complete authority to transmit instructions, receive information, interpret and define the CITY's policies and decisions pertinent to the work covered by this Amendment. 4.1.2 Provide data requested that is reasonably available on the existing Storm Water, utility and street systems, along with operational and maintenance requirements. 4.1.3 Guarantee access to end make all provisions for the ENGINEER to enter upon public and private lands as required for the ENGINEER to perform his work under this Amendment. 4.1.4 Provide personnel to locate facilities and mow, trim, excavate, or otherwise make them accessible for inspection. 4.1.5 Examine all studies, reports, sketches, and other documents presented by the ENGINEER and render decisions pertaining thereto within a reasonable time so as not to delay the work of the ENGINEER. 4.1.6 Obtain approval of all governmental authorities having jurisdiction over the project, and such approvals and consents from such other individuals or bodies as may be necessary for completion of the Project. 4.1.7 Furnish or direct the ENGINEER in writing to provide at the CITY's expense any subconsultant services not designated in Section 2, if advised by the ENGINEER and CITY concurs that they are necessary. CITY is to provide surveying and soils (geotechnlcal) services as designated in Section 2. 4.1.8 Furnish, or direct the ENGINEER in writing to provide at the CITY's expense, necessary additional services as stipulated in Section 3 of this Amendment, or other services as required that are beyond the described scope of this Amendment. 4.1,9 Provide such legal, accounting, and insurance counseling services as may be required for the project, and such auditing services as the CITY may require. 4.1.10 Give prompt written notice to the ENGINEER whenever the CITY observes or otherwise becomes aware of any defect in the Project. Section 5 Payment 5.1 Payment Payment for services and expenses of the ENGINEER to be as set forth below: 5.1.1 Principals end Employees of the ENGINEER. 5.1.2 Compensation paid ENGINEER for services described herein and rendered by principals and employees assigned to the Project will be computed by multiplying Direct Personnel Expense (defined in paragraph 5.2.3 herain) times a factor of 1.95 plus all reimbursable expenses. The fee for the engineering services for the Service described in Section 2, plus out of pocket expenses of 5.2.1 at actual cost thereof shall not exceed 971,886.00. 5.2 Reimbursed Expenses 5,2.1 Expenses for items not specifically valued herein are to be reimbursed to the ENGINEER at the actual cost thereof. Said expenses shall include transportation and subsistence of principals and employees, when traveling in connection with the project, toll telephone calls, telegrams, prints, photocopies, and similar project-related items. 5.2.2 The CITY will make prompt monthly payments in response to ENGINEER's monthly statements without retention for all categories of services rendered under this Agreement and for reimbursable expenses incurred. 5.2.3 Direct Personnel Expense used as a basis for payment shall mean the salaries and wages paid to principals and employees of all classifications engaged directly on the Project, plus the cost of fringe benefits including but not limited to, social security contributions, worker's compensation, health and retirement benefits, bonuses, sick leave, vacation and holiday pay applicable thereto. For purposes of this Amendment, Direct Personnel Expense shall be considered an amount equal to 1.48 times applicable salaries and wages. 5.2.4 Charges for the services rendered by principals and employees as witnesses in any litigation, hearing or proceeding will be computed at a rate of 9600.00 per day or any portion thereof (but compensation for time spent in preparing to appear in any such litigation, hearing or proceeding will be computed in accordance with the payment method as set forth in Paragraphs 5. 1.2 and 5.2.1 herein). 5.2.5 If this Agreement is terminated during prosecution of the services prior to completion of the services of Section 2, payments to be made in accordance with Paragraph 5.1.2 and 5.2.1 on account of that and all prior work under this Amendment shall be due and payable, and shall constitute total payment for services rendered, In addition, upon termination, the ENGINEER shall be paid for any additional services authorized and rendered under Section 3. 5.2.6 Services provided by outside subconsultants will be billed at the direct cost without increase. Section 6 General Conditions 6.1 Since the ENGINEER has no control over the cost of labor, materials, or equipment or over any construction Contractor's method of determining prices, any opinion of probable construction cost which may be provided in the services of this Amendment are made on the basis of his experience and qualifications and represent his best judgment as a design professional familiar with the construction industry, but the ENGINEER cannot and does not guarantee that bids or the construction cost will not vary from opinions of probable cost prepared by him. 6.2 The CITY and the ENGINEER each binds himself and his partners, successors, executors, administrators and assigns to the other party of this Agreement and to partners, successors, executors, administrators, and assigns of such other party in respect to all covenants of this Amendment. Nothing herein shall be construed as creating any personal liability on the part of any officer or agency of any public body which may be a party hereto, nor shall it be construed as giving any rights or benefits hereunder to anyone other than the CITY and the ENGINEER. 6.3 The ENGINEER agrees to initiate work promptly upon receipt of authorization to proceed and to prosecute the work in a timely manner until the Project is completed within 210 days from Notice to Proceed based, upon availabiliW of survey and other information needed in a timely manner. IN WITNESS WHEREOF, the parties hereto have made and executed this Amendment the day and year first above written. City: City of Sanford, Florida ATTEST & SEAL ~ ENGINEER: Conklin, Porter & Holmes - Engineers, Inc. T~~. SE L " ~ ' Paul E. Porter, President Date: J J ' / ~ - ~ ~ PLAN OF STUDY Mill Creek Phase IIl Services Pre-Final Design Work - Phase llI 1. Assistance to City on Goldsbore School Joint Use Pond a. Meetings 2.0 4.0 b. Rough sizing pond and computer analysis 4.0 12.0 c. Preparation of drawings of alternate solutions and modifications 2.0 4.0 6.0 8.0 d. Review ofjoint nse interlocal agreement and preparation of exhibit 1.0 2.0 6.0 $20.00 2. Coordination with City and land acquisition specialist including studies of laud City currently owns west of railroad and additioxml ]and needed for pond. Also included is coordination with City and Environmental Scientist regarding the Saudefur tract. a, Coordination with City and surveyor and meetings 2.0 4.0 2.0 b. General scope of environmental sc'xentiat services including, instructions, review 2.0 12.00 2.0 $2,500.00 and coordination of environmental work as it relates to poss~le jurisdictional areas, coordination with FDEP, field visits and review of extent of industrial contamination on Sandefur site. b. Coordination with land acquisition specialist on status of existing work and 4,0 12.0 12.0 2.0 outlining additional land needed south of 18th Street and west of the railroad and any land or easements needed fi'om ponds noRIt to 14th and Mulberry c. Engineering studies includ'mg two alternate solutions (larger and smaller ponds west 6.0 16.0 12.0 of railroad) and computer analysis including Goldsbox;o joint use pond d. Evaluation of alternatives including effect on downstream facilities. Recommend to 4.0 6.0 City the preferred solution and additional land needed including amount of Sandefur tract e. Modify pond solution, study and evaluate in accordance with changed land 2.0 8.0 6.0 acquisition progress or final result -10- Final Design - Phase HI (Goldsbore Joint Use Pond and petal west of Railroad; and additive bid alternate of box eulvefl from 14th and Mulberry south to ponds) A. G~nofal: 1. Engineer win serve as City's professional Engineering representative and will me~t, 8.0 12.0 12.0 6.0 $20.00 consult and provide advie-~ to City during the performance of these services 2. General scope of surveying services including instructions, review and coordination of 2.0 6.0 10.0 2.0 $20.00 surveying work being done by City employad surveyor. R~cluest flagging of utilities and borings for surveying. 3. Genial scope of soils work including instructions, ~ceview and coordinution of City 2.0 6.0 10.0 2.0 employed soils firm for borings, water table data and recommendations needad in pond 4. MeeI with St. Johes River Water Managem~ut Distrie. t staff, Cops of Engineers, tim City and the utility companies. The purpose of the ninerings is to discuss pormiRing, erosion and silt control plans, w~t delention, pollution abmement fa~'flities, maintenance of stream flow, details of the construction and to de/~ormlne utility conflicts and relocations rotuired. a. SJRWMD 6.0 10.0 6.0 2.0 $30.00 b. Corps of Engineers 4.0 8.0 1.0 c. City, including progress meetings 8.0 16.0 4.0 d. Utilities (gas, telephone, power and cable). 1.0 4.0 6.0 3,0 $20.00 B. Final Design: 1. Field inspections, plan research, utilities locations in railroad right-of-way and pond 3.0 8.0 8.0 $30.00 areas and along west side of Mulberry 2. Review soi/s borings and r~commendations and final survey data 1.0 2.0 8.0 3 Sketch tough g~ometty, depth, contours and details of ponds and conveyances into and 2.0 8.0 12.0 16.0 $20.00 out of ponds including ~lualizor culverts and control structures and field clmck 4. Review and finalizo the alignment for the box culvert from the pond noflh to 14th & 2.0 6.0 12.0 8.0 $20.00 Mulbeny Ave. taking into account utility conflicts and r~locaflons. Field eh~zk and mark on prints 5. Review local lateral drainage and local drainage improvements from 20th Street north 2.0 8.0 16.0 16.0 $20.00 through ponds and north to 14th and Mulben3, including pollution abatement poss~illties along the route. Field cheek and mark on prints. 6. Determine junction/pollutinn abatement/conflict stmctmes and inlet locations, and 1.0 4.0 12.0 8.0 $20.00 sketch. 7. S/ze local culverts and other miscellaneous culverts and control structures. 1o0 10.0 16.0 8. Finalizo Mill Creek ponds, conveyances, grade lines, control structures, and lateral 2.0 10.0 4.0 &alnage and re-run computer program for Phase HI total final project 9. Structural design of structures: a. Control stmct~ue out of ponds 2.0 6.0 6.0 b. Miscellaneous head walls, wing walls and junction structeros 6.0 6.0 10. Erosion control design at inlets, outlets and lateral drainage locations 1.0 3.0 6.0 8.0 2.0 C. Prepare Final Construction Plans, including supervision, office and field checking, based on two separate sets of plans; one to support po~g and construction of the Guldsboro joint use detention pond, and the crossing of 20th Street (alyprox. 10 sheets); and, the other for the Saudefur/City Pond, outfall and box culvert (approx. 12 sheets). Cover Sheets (2 Sheets - One Per Construction Contract) 2.0 4.0 Aerial Location Map (2 Sheets - One Per Construction Contract) 2.0 8.0 $20.00 General Notes (2 Sheets - One Per Construction Contract) 1.0 4.0 6.0 8.0 6.0 Aerial Alignment Plan (2 Sheets - One Per Construction Contract) 4.0 4.0 8.0 Mylar (SRM) 200.00 Plan Prof'de Sheets - Box Culvert (3 Sheets) 4.0 16.0 16.0 32.0 Cross Sections - Box Culvefi (1 Sheet) 1.0 4.0 8.0 16.0 Plan & Details - Lateral Tribntary Drainage (2 Sheets) 4.0 8.0 8.0 16.0 Aerial Overall Sheet (West Detention Basin) (I Sheet) 2.0 6.0 8.0 18.0 - Mylar (SRM) 100.00 Plan Sheet (West Detention Basin) (1 Sheet) 2.0 8.0 16.0 18.0 Plan Sheet (Goldsbore School Detention Basin) (I Sheet) 1.0 6.0 8.0 16.0 - Pond Cross Sections (West Detention Basin) (1 Sheet) 2.0 4.0 16.0 -: Po,,d CiI~ .q,~'~fio,,~ ((.;oM~ho,~ .',;.:h~x~l I.)~!fc,lfie,i JJa-;m) (I Sh,~0 2.0 ~.0 16.0 D~s ~c~ ~ ~ oufiet ~,tro] stmcm (3 Sh~) 4.0 4.0 ~.0 32.0 D. ~ two sere sm oE Co,~act Docme, h ~ S~c~om ~c]~g h~dd~g 4.~ 40.0 ~.0 X 6.0 32.0 ~. ~e~o S7~ ~t AppOrtion(s), ~t~o, ~c~g~, ~ docm~oa fo~ 4.0 X6.0 ~6.0 ~6.~ for the whole Y~ ~ P~g~ w~ be pre~ ~ s~, to r~ review t~s ~ ~s~. ff timing of t~ Go~boro jo~t use ~M ~m~ cfiticM, a se~ ~t ~ ~ sub~ for ~t work.) F. Pre~e Co~s of ~g~rs DrMge ~ F~ ~t ~ 8-1/2' x 11 ' dra~gs ~ 2.0 8.0 8.0 20.0 2.0 $50.~ ~work ~tities for eftstag ~h from 14th ~d M~ ~ 18~ ~ M~ ~d for s~ion of efit~g ~tch t~ ~ ~ $~n~ hto Gol~M~ Jo~ Use Pond. ~o~: ff ~ss~le, one a~li~tion for ~e whole Y~ ~ ~g~ w~ ~ F~arM ~d mb~, to r~u~ review t~ ~ ~s~. ff timing of the Ool&~ro jo~t use ~nd b~mes cfiticM, a sep~e ~t ~ ~ sub~ for ~t G. ~pue ~titi~ ~d op~on of probable ~st to ~mt~ct ~ ~prove~nB 4.0 24.0 16.0 H. Provide 10 s~ of ~ of the dra~gs ~d other docenB for chang, ci~ review ~d approvM, ~d for ~R~g dung the ~u~e of the ~oj~t P~ & Computer Plo~ ~.00 Photopies $100.00 Contact D~m~B. Salary Co~ .................................................................... $23,422.04 x ~ .48 {Frin0o/GA} ................................................................ x Multiplier {1.95} ................................................................. Subconsultant Fees: Survey and Soils {By City} .............................................................. $.00 Environmental Seionti~ ............................................................. $2,S00.00 Reimbursed Expenses .............................................................. TOTAL ........................................................................ Payment for services and expenses of the ENGINEER is to be as set forth below, Principals and Employees of the ENGINEER: Compensation paid to the ENGINEER for services described herein and rendered by the principals and employees assigned to the project are computed by multiplying the Standard Classification Billing Rates for all classifications of employees directly engaged on the project, by the number of hours worked on the project. The engineering fee for the services described herein is estimated to be $21,000.00, inclusive of out-of-pocket expenses. Invoices will be submitted periodically, indicating the hours expended during that billing cycle. Reimbursed Expenses Expenses for items not specifically valued herein are to be reimbursed to the ENGINEER at the actual cost thereof. Said expenses shall include transportation and subsistence of principals and employees, when traveling in connection with the project, toll telephone calls, telegrams, prints, photocopies and similar project-related items. Please review and contact us if you have any questions or would like to meet and further discuss. If these additional services are satisfactory, please return one copy of this letter signed as our authorization to proceed with these amended services. Sincerely, CPH ENGINEERS, INCo ~. Gierach, ~.E. Executive Vice President Approval for Amended Services and Notice to Proceed: Cit~San ord Date \\CPH_SANF2\VOL2UOBS\S0607.1 I\WP\LETTER\081199.tam.doe Jerry Herman City of Sanford October 27, 1999 Page 3 of 4 ENGINEERS. INC. hydraulic connections, groundwater baseflow contributions, and modifications to the contributing Drainage Basin 400. G. Design Plan Modifications for New Stormwater Pond The completed "Year 3B" design plans will need to be modified to delete the previous proposed Year 3B pond, and to replace it with the new pond proposed by B&B. Plan Sheet 3 will require substantial replacement, including a larger survey base area, new pond contours, modifications to pipe connections between ponds, and pond cross section. The key map utilized throughout the design plans will also need to be updated to reflect the new proposed pond. Details and other design related to the pond will also be adjusted as appropriate. Should the water control elevations be adjusted as part of the new pond design, the plans will also need to include any adjustments to the existing control structure in the City's existing Year 3A pond. H, Stormwater Modeling and Report Modifications for New Pond Stormwater computer modeling for the Mill Creek improvements will need to be modified to include the final proposed pond by B&B. All changes to the pond, piping connections, and contributing drainage basins will be incorporated. Construction work to be completed by B&B will be defined as such. The Report will be modified as appropriate to describe the New Year 3B Improvements and arrangements with B&B. All Post Development calculations and mode] output will need to be prepared again for both the 25yr/6hr and 25yr/24hr design storms. Stormwater Quality Treatment calculations will also need to be modified to account for the additional storage in the new pond and any adjustments that may be made to the controlling water elevation. I. Modifications to Permit Application The individual Environmental Resource Permit application currently active with the SJRWMD will need to be modified for the new pond arrangements, in which the new Year 3B pond will be permitted separately by B&B. We will meet jointly with SYRWMD and B&B to review these new plans and how the Mill Creek Improvements will be enhanced. CPH will coordinate with SJRWMD to keep the current application active while revising it to exclude the new pond from the City's application. CPH will assist the City in revising application forms, narratives, and other submittal documents to SJRWIVID. CPH has also assisted the City in requesting time extensions in writing as necessary to keep the current application active with S]RWMD Jeny Herman ~'% (~~m~~ City of Sanford October 27, 1999 Page 2 of 4 ENGINEERS, INC. evaluated in discussions with the Environmentalist and the City. Ultimately, the pond configuration was modified to work the pond around two primary wetland areas, but still keep the 3-to-1 slope on the pond berm. B. Wetland Area Calculations In order to address the wetlands as part of the stormwater application to SJRWMD, the extent ofwefland areas claimed to be jurisdictional by SJRWMD had to be quantified. Once the wetland lines were flagged and surveyed within the pond area, we plotted the jurisdictional lines across the proposed pond layout and calculated proposed wetland areas within the pond. Based upon modifications made to the pond in item A above, wetland areas were further subdivided between those proposed to be destroyed by construction of the pond, and those on the property (planned to be acquired) which could be saved, C. Coordination with ACOE Based upon initial review of the stormwater application, the ACOE has verbally informed us the project may fall under ACOE jurisdiction. This will need to be further discussed with the ACOE and additional information will need to be sent to them in order for ACOE to make a clear determination whether or not the wetlands within the pond area are jurisdictional. These services do not include any permitting with ACOE, should this become required. Bishop and Buttrey should be required to permit as necessary with ACOE. D. Evaluation of Proposal by Bishop & Buttrey CPH has assisted the City in evaluating the proposal by B&B in which the proposed Year 3B pond would be replaced by a new, larger pond or series of ponds. Estimated Cost information was provided to the City for what it would have taken to successfully permit and construct the Year 3B pond, taking into account environmental wetland impacts and onsite mitigations. CPH also attended meetings with the City and B&B in preliminary discussions of the proposal. E. Coordination with Bishop & Buttrey Continning coordination with Bishop & Buttrey through completion of design and permitting for this project. CPH will provide stormwater information and design constraints in relation to the Mill Creek system improvements. B&B will provide design data on the proposed new pond (in ACAD ver. 12 or 14). Permitting and design plan preparations between CPH and B&B will be closely coordinated to ensure consistency. F. Evaluation of new pond by B&B The proposed new pond by B&B will be incorporated into the current Year 3B stormwater modeling to evaluate the affect upon the Mill Creek Improvements. Various control elevation scenarios may need to be modeled and evaluated. All information pertinent to the pond proposed by B&B will be provided by B&B, including stage/area/storage information, CPH Engineers, Inc. October 27, 1999 500 west Fulton Street Sanford, FL 32771 P. O. Box 2808 Mr. Jerry HerrFlail Sanford, FL 32772-2808 Phone: (407) 322-6841 Public Works Director Fax: (407) 330-0639 City of Sanford www.cphengineers.corn P.O. Box 1788 Sanford, FL 32772 RE: Mill Creek Year 3B Improvements Contract Addendure to Contract Amendment No. 23 CPH Project No. S0607.11 Dear Jerry: As you know, we are working with the City and Bishop & Buttrey to develop an alternate plan for the Mill Creek Year 3B stormwater pond improvements. Originally, it was intended by the City to permit and construct a stormwater retention pond upon property the City was negotiating to acquire. As previously directed by the City and as authorized under Contract Amendment No. 23, the "Year 3B' improvements were designed based upon this property arrangement. Recall, that permit application to the St. Johns River Water Management District was also submitted and this application is still active. Since then, the City has had the opportunity for alternative property arrangements with Bishop & Buttrey, in which the previously proposed "Year 3B' pond will be replaced with an entirely different pond. We understand the stormwater pond proposed by B&B will be both permitted and constructed under their responsibility. However, incorporating a different pond into the Mill Creek Improvements will require revisions to the supporting hydrologic/hydraulic model calculations to be submitted to SJRWMD and will require design plan revisions on our part to accommodate the new pond. These modifications were not considered in our original Scope of Services, and it would appear appropriate at this time to amend our current base contract to include these desired services. We have carefully reviewed this project and would recommend the following addendure to our Scope of Services: A. Additional Year 3B Pond Configurations During the course of discussions with SYRWMD and the City prior to application submittal, several alternative pond configurations were drawn. These configurations were in an effort to fine tune the pond boundaries, based upon the general pond location selected previously. Alternative layouts beyond the rectangular shape included arrangements to reduce the pond size slightly and work the pond around existing wetland areas. Pond layouts were also prepared considering a littoral shelf around the perimeter of the pond. These layouts were SANFORD * ORLANDO * DELAND * PALM CITY * CAPE CORAL ° JACKSONVILLE October 27, 1999 CPH Engineers, Inc. 500 West Fulton Street Sanford, FL 32771 R O. Box 2808 Mr. Jelly Herlnall Sanford, FL 32772-2808 Phone: (407) 322-6841 Public Works Director Fax: (407) 330-0639 City Of Sailford www.cphengineers.com P.O. Box 1788 Sanford, FL 32772 RE: Mill Creek Year 3B Improvements Contract Addendum to Contract Amendment No. 23 CPH Project No. S0607.11 Dear Jerry: As you know, we are working with the City and Bishop & Buttrey to develop an alternate plan for the Mill Creek Year 3B stormwater pond improvements. Originally, it was intended by the City to permit and construct a stormwater retention pond upon property the City was negotiating to acquire. As previously directed by the City and as authorized under Contract Amendment No. 23, the "Year 3B" improvements were designed based upon this property arrangement. Recall, that permit application to the St. Jolms River Water Management District was also submitted and this application is still active. Since then, the City has had the opportunity for alternative property arrangements with Bishop & Buttrey, in which the previously proposed "Year 3B" pond will be replaced with an entirely different pond, We understand the stormwater pond proposed by B&B will be both permitted and constructed under their responsibility. However, incorporating a different pond into the Mill Creek Improvements will require revisions to the supporting hydrologic/hydraulic model calculations to be submitted to SJRWMD and will require design plan revisions on our part to accommodate the new pond. These modifications were not considered in our original Scope of Services, and it would appear appropriate at this time to amend our current base contract to include these desired services. We have carefully reviewed this project and would recommend the following addendure to our Scope of Services: A. Additional Year 3B Pond Configurations During the course of discussions with SJRWIVID and the City prior to application submittal, several alternative pond configurations were drawn. These configurations were in an effort to fine tune the pond boundaries, based upon the general pond location selected previously. Alternative layouts beyond the rectangular shape included arrangements to reduce the pond size slightly and work the pond around existing wetland areas. Pond layouts were also prepared considering a littoral shelf around the perimeter of the pond. These layouts were SANFORD · ORLANDO · DELAND · PALM CITY · CAPE CORAL * JACKSONVILLE Jerry Herman (~~~ City of Sanford October 27, 1999 Page 2 of 4 ENGINEERS, INC. evaluated in discussions with the Environmentalist and the City. Ultimately, the pond configuration was modified to work the pond around two primary wetland areas, but still keep the 3-to~l slope on the pond berm. B. Wetland Area Calculations In order to address the wetlands as part of the stormwater application to SJRWMD, the extent ofwetland areas claimed to be jurisdictional by SJRWMD had to be quantified. Once the wetland lines were flagged and surveyed within the pond area, we plotted the jurisdictional lines across the proposed pond layout and calculated proposed wetland areas within the pond. Based upon modifications made to the pond in item A above, wetland areas were further subdivided between those proposed tO be destroyed by construction of the pond, and those on the property (planned to be acquired) which could be saved_. C. Coordination with ACOE Based upon initial review of the stormwater application, the ACOE has verbally informed us the project may fall under ACOE jurisdiction. This will need to be further discussed with the ACOE and additional information will need to be sent to them in order for ACOE to make a clear determination whether or not the wetlands within the pond area are jurisdictional. These services do not include any permitting with ACOE, should this become required. Bishop and Buttrey should be required to permit as necessary with ACOE. D. Evaluation of Proposal by Bishop & Buttrey CPH has assisted the City in evaluating the proposal by B&B in which the proposed Year 3B pond would be replaced by a new, larger pond or series of ponds. Estimated Cost information was provided to the City for what it would have taken to successfully permit and construct the Year 3B pond, taking into aec0unt environmental wetland impacts and onsite mitigations. CPH also attended meetings with the City and B&B in preliminary discussions of the proposal. E. Coordination with Bishop & Buttrey Continuing coordination with Bishop & Buttrey through completion of design and permitting for this project. CPH will provide stormwater information and design constraints in relation to the Mill Creek system improvements. B&B will provide design data on the proposed new pond (in ACAD ver. 12 or 14). Permitting and design plan preparations between CPH and B&B will be closely coordinated to ensure consistency. F. Evaluation of new pond by B&B The proposed new pond by B&B will be incorporated into the current Year 3B stormwater modeling to evaluate the affect upon the Mill Creek Improvements. Various control elevation scenarios may need to be modeled and evaluated. All information pertinent to the pond proposed by B&B will be provided by B&B, including stage/area/storage information, Jerry Herman City ofSanford October2?,1999 Page 3 of 4 ENGINEERS, INC. hydraulic connections, groundwater baseflow contributions, and modifications to the contributing Drainage Basin 400. G. Design Plan Modifications for New Stormwater Pond The completed "Year 3B" design plans will need to be modified to delete the previous proposed Year 3B pond, and to replace it with the new pond proposed by B&B. Plan Sheet 3 will require substantial replacement, including a larger survey base area, new pond contours, modifications to pipe connections between ponds, and pond cross section. The key map utilized throughout the design plans will also need to be updated to reflect the new proposed pond. Details and other design related to the pond will also be adjusted as appropriate. Should the water control elevations be adjusted as part of the new pond design, the plans will also need to include any adjustments to the existing control structure in the City's existing Year 3A pond. H. Stormwater Modeling and Report Modifications for New Pond Stormwater computer modeling for the Mill Creek improvements will need to be modified to include the final proposed pond by B&B. All changes to the pond, piping connections, and contributing drainage basins will be incorporated. Construction work to be completed by B&B will be defined as such. The Report will be modified as appropriate to describe the New Year 3B Improvements and arrangements with B&B. All Post Development calculations and model output will need to be prepared again for both the 25yr/6hr and 25yr/24hr design storms. Stormwater Quality Treatment calculations will also need to be modified to account for the additional storage in the new pond and any adjustments that may be made to the controlling water elevation. I. Modifications to Permit Application The Individual Environmental Resource Permit application currently active with the SJRWMD will need to be modified for the new pond arrangements, in which the new Year 3B pond will be permitted separately by B&B. We will meet jointly with SJRWMD and B&B to review these new plans and how the Mill Creek Improvements will be enhanced. CPH will coordinate with SJRWMD to keep the current application active while revising it to exclude the new pond from the City's application. CPH will assist the City in revising application forms, narratives, and other submittal documents to SJRWMD. CPH has also assisted the City in requesting time extensions in writing as necessary to keep the current application active with SJRWMD Jerry Herman (~~s~x~ City of Sanford October 27, 1999 Page 4 of 4 ENGINEERS, iNC. Payment for services and expenses of the ENGINEER is to be as set forth below; Principals and Employees of the ENGINEER: Compensation paid to the ENGINEER for services described herein and rendered by the principals and employees assigned to the project are eompnted by multiplying the Standard Classification Billing Rates for all classifications of employees directly engaged on the project, by the number of hours worked on the project. The engineering fee for the services described herein is estimated to be $21,000.00, inclusive of out-of-pocket expenses. Invoices will be submitted periodically, indicating the hours expended during that billing cycle. Reimbursed Expenses Expenses for items not specifically valued herein are to be reimbursed to the ENGINEER at the actual cost thereof. Said expenses shall include transportation and subsistence of principals and employees, whe~ traveling in connection with the project, toll telephone calls, telegrams, prints, photocopies and similar project-related items. Please review and contact us if you have any questions or would like to meet and further discuss. If these additional services are satisfactory, please return one copy of this letter signed as our authorization to proceed with these amended services. Sincerely, CPH ENGINEERS, INC. Executive Vice President Approval for Amended Services and Notice to Proceed: ffyyof Sanford Date \\CPH_SANF2WOL2UOBS\S0607,1 I\WP\LETTER\081199.tam.doc