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6 ® CHANDLER WS 20 izona City Clerk Document No. City Council Meeting Date:__ September 18, 2025 AMENDMENT TO CITY OF CHANDLER AGREEMENT PASEO VISTA RECREATION AREA AND LANDFILL ENVIRONMENTAL CONSULTING SERVICES CITY OF CHANDLER AGREEMENT NO. 4831 THIS AMENDMENT NO. 1 (Amendment No. 1) is made and entered into by and between the City of Chandler, an Arizona municipal corporation (City), and Tetra Tech, Inc. (Contractor), (City and Contractor may individually be referred to as Party and collectively referred to as Parties) and made , 2025 (Effective Date). RECITALS WHEREAS, the Parties entered into an agreement for Paseo Vista Recreation Area and Landfill environmental consulting services (Agreement); and WHEREAS, the term of the Agreement was October 1, 2024, through September 30, 2025, with the option of up to four one-year extensions; and WHEREAS, the Parties wish to exercise the first option through this Amendment to extend the Agreement for one year. AGREEMENT NOW THEREFORE, the Parties agree as follows: 1. The recitals are accurate and are incorporated and made a part of the Agreement by this reference. 2. Section Ill is amended to read as follows: The Agreement is extended for a one-year period October 1, 2025, through September 30, 2026. 3. Section IV is amended to read as follows: The City will pay the Contractor the per unit cost set forth in Revised Exhibit B of the original Agreement, attached to and made a part of this Amendment No. 1 by this reference. Total payments made to the Contractor during the term of this Amendment No. 1 will not exceed $200,000. Page 1 of 4 4. All other terms and conditions of the Agreement remain unchanged and in full force and effect. If a conflict or ambiguity arises between this Amendment No. 1 and the Agreement, the terms and conditions in this Amendment No. 1 prevail and control. IN WITNESS WHEREOF, the Parties have entered into this Amendment on the Effective Date. FOR THE CITY FOR THE CONTRACTOR By: py.Jeffuy M Williams Its: Mayor Its: _ Vice President, Tetra Tech BAS, Inc. APPROVED AS TO FORM: By: City Attorney qo ATTEST: By: City Clerk Page 2 of 2 PERSONMEL Ardeoinacracive Assistarc: Project Clark Project Daca Ava ‘Office Serace: Clerk Project Coondinacor Senior Project Coordinacar ‘CAB Tech | CAD Tech tl CAD Tech tii ‘CAD Tach I (Designer | (Designer I Designer Ill (Designer Iv Scaff Engineer | Scaff Engineer il ‘Soaft Engineer ll Project Engioner I Project Enginaer Project Enggroce Bl Senior Enginear | Sorior Engineer Il Sector Enginenr Ill Supervising Enginesr | Supertzing Exgineer It Supervising Engineer lll (Division Engineer | Division Enginoer Il Principal Erginosr Principal Senkor Principal Progece Manager Project Manager | Projece Manager I! Project Manager til Propect Manager Iv Project Manager Vv Senior Project Manager Program Direccor Project Advisor (Construction Supersaor | ‘Construction Supervisor 8 ‘Consrruction Superdaor i ‘Consruntion Manager | ‘Construction Manager 8 Senior Construction Manager Principal Consouction Manager (Chie! of Surwey Parties (Man Survey Parry wah GPS ‘Man Survey Parry Te] TETRA TECH REVISED EXHIBIT B COMPENSATION AND FEES SOLID WASTE WEST SCHEDULE OF CHARGES RATE PERSONNEL RATE 102 Soff Ene. Specialise Schencisc | Sins J) Saf Ene. Speciabse(Schenisc 8 5127 car] Project Enw. SpecialierScienose | $19 sia Project Env. SeeacialieeySchennee Il $159 51g3 Preqoce Env. Speecialivn'Seienciar lil $174 S175 Senior Env. Spetecndiso/Schencivt | Si a5 Senior Env. SpeciafisnScencict Il $194 Sill Senior Env. Spocialisn'Schentise il e204 sil Reid Dorm Colecror 30 S51 Saf Planner'Permicer | an s1e8 Snuff PannerPermaner fi 4 Sik Sof Pannen Permiter il 5102 ‘S03 Project Pannen Perminer | se S22 Project Panner/Perreintce sul Sie Project Planner! Perrimes iil $144 sag Project PannerPerminer I S154 Si5l Senior Panser!Pervicver | See Siél Senior Planner!Pertucner I sie sa Senior Plancen!Permiccer Ill 519 Sik Senior Planner’ Permicner It $3 a1™ Senior Planner!Permicoar '! sn2 i068 Princigal Planner/Perminer as S207 Archinect | 5139 son Archinect II Side sun Archinect Ill S14 50 Architect ¥ rar ‘Si?l Seal Geolegise | $130 sug Stall Geobogise Il S140 09 Seal Genter lil $150 Bun Project Geolagist | Seo 9 Prejoce Gaokagtst Ul sum $182 Project CGeologisr iil se S194 Senior Geologist six S221 Senior Geologist ll 206 $23 Senior Geologist ill $217 S44 Supervising Geologist | sre $86 Supervising Geologist I sue Slee Supervising Geolagicr lil 140 Stl Principal Geavechnical Eng/Gealogixe sey S27h.$ 75 Principed Geotechnical Eng sia sist Soils/AsphatyPasld Techrecian $i si SafulisphaloPield Technician - Prevailing Wage S149 Su08 Technician $62 sii? ‘Technician | ma pret] Technician I sind S271 Senior Technician | S12 sa Senior Technician il Sn44 520g Senior Technician ill S157 SoS Chie! Technics si? Sued Senior Operanor sive Foes are Efficten fanwery |, 2025 - December 2/, 2005. Court Appesronee (Expert Wire, Cloteutien) ond Ceectiene Prevent / 507% if Pureanonl Heuriy Asie. “Fier fir Praject Achdsot te be broee! on sbecieieeel weg? regen IB-HOUSE EXPENSES, 38of Total Farucered Foes Personal Vehicle Company Meteo 075ml OTHER EXPENSES: (Coormguarep: ard Suuremy ‘eechictey Cher Qutcl-Pecket Exparenn Supplies Travel Corauftaren'Chunide!Comeruction Service Peer (Drartt for Living Expernies Equtpmane: Loupe $i7hour Com + [ER Coat + 1 Federal +155 Seo Actached Echerhhe Quneds ricer payin’ by ethers ane direct expeaner mere a the Clee: bahay ere changed! am adculerretion fia uf fyverans [v0RI ne caver tte com ta prowide far odrumieronion, 1ut- cafmahone contract coasinenan ood aueriect fea od be odded oo the direct ios ef af conmaftonm, ewidor, mawriol, equine suppliers, crber dic: comm, and cey eater puis weriice. Page 3 of 4 Tt TETRA TECH SOLID WASTE WEST EQUIPMENT RENTAL RATES Rates are Effective January |, 2025 - December 31, 2025 TYPE OF EQUIPMENT DAY WEEK MONTH 4 Gas Range Meter CH4, H25, CO, O2 (Sentinel 44) Alpha - | Personal Sampling Pump Disposable Bailer CO2 Calorimetric Analysis Tubes Downhole Camera Dupont Dosimeter Mark-3 (Personal Sample Pump) Flow Calibrator (Gilian) ‘(Gas Extraction Monitor (GEM 500 / 2000 / 2000 Plus) Lung Sampler (Nutech 218) Mini-Rarm Data Logger Mini-Rarm Dust Meter Organic Vapor Analyzer (OVA128) Photo lonization Detector (OVMS80B) Sample Train (Gas Extraction Pump) Soil Auger/Sampler Sounder (Liquid Level Indicator) Horiba Meter MiniRae 2000 ‘GT Surveyor (GPS Enabled SEM Leak Detection Equipment ‘GPS Survey Equipment Services Groundwater Sampling Equipment ‘Company Vehicle Field Sampling Supplies: LEVEL C (Per Person) Respirator with Cartridge (full or half faced), Tyvek Coveralls, ‘Outer Gloves, Glove Liners, Neoprene Boots Sand Cone or Nuclear Density Gauge Hand auger and soil sampling equipment BAT Permeameter Double Ring Infiltrometer Inclinometer data collection system Infiltration test flowmeter Floor level manomenter Field inspection kit (camera, recorder, GPS) Page 4 of 4 $75 $225 $575 $75 $200 $500 $20/each nla nla $40 $125 $250 $75/hr nla nla $50 $150 $300 $50 $150 $300 $145 $445 $1,330 $100 $300 $800 $40 $125 $250 $50 $150 $300 $125 $400 $1,000 $125 $400 $1,000 $50 $150 $300 $30 $90 $180 $40 $125 $250 $50 $200 $400 $75 $200 $500 $75 $200 $500 $250 $800 $2,400 nla $200 na $30/hour nla nia $130 $550 $1,750 100/'day nla nla $150 nla nia $i4/hour nia nia $70 nla nla $250 nla nla $250 nla nia $400 nla nla $130 per day-test $80 nia nla S4Okit nla nla $35 nla nla Page 2 of 2