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HomeMy WebLinkAbout18- Amendment 2 to PSA - RESPEC Inc. - Groundwater Investigation Services Phase 3 l AMENDMENT NO. 2 I TO PROFESSIONAL SERVICES AGREEMENT FOR GROUNDWATER INVESTIGATION SERVICES THIS AGREEMENT is made as of this _� day of ( /AaC_4 , 2018, between THE CITY OF BOZEMAl\T, a Municipal Corporation, P.O. Box 1230, Bozeman, Montana,59771-1230,herein referred to as OWNER, and RE/SPEC Inc.,3810 Valley Commons Drive#4, Bozeman,Montana, 59718-6477, an Engineering-Consulting Firm herein referred to as ENGINEER. WHEREAS, the parties have entered into a Professional Services Agreement dated August 24, 2015,herein referred to as Original Agreement for professional engineering services; and WHEREAS, the parties desire to amend the provisions of this Agreement to include a feasibility evaluation and alternatives analysis for municipal well siting within the Sports Park property and due diligence of possible mitigation strategies and water right availability for a well field at this location. A test well program will be implemented to provide design and permitting framework for test well drilling, pumping, and monitoring. Test well results will be utilized to evaluate specific well location(s), including the ability to mitigate predicted stream depletions. NOW, THEREFORE, IN CONSIDERATION OF THE MUTUAL COVENANTS CONTAINED HEREIN, the parties agree as follows: The conditions and provisions set forth in the attached EXHIBIT A (Scope of Services) and EXHIBIT B (Cost Summary) to Amendment No. 2, are hereby incorporated in and made part of this Agreement. ARTICLE 1 -ENGINEERING SERVICES Section 1.1 of the Original Agreement is amended as follows: Work tasks (Tasks 3.1 —3.10), as described in Exhibit A(Scope of Services) to Amendment No. 2, are added as a third phase of the project titled Well Siting Feasibility and Test Well Design, Permitting, and Monitoring Program: Phase 3 -Well Siting Feasibility and Test Well Design Permitting and Monitoring_Pro -ram Task 3.1: Well Siting Feasibility Evaluation and Alternatives Analysis Task 3.2: Preliminary Source Water Delineation Assessment(SWDA) &Source Water Protection Plan(SWPP) Task 3.3: Mitigation Options/Water Rights Evaluations Task 3.4: Coordination/Meetings with DNRC Task 3.5: Test Well Design/Permitting Task 3.6: Test Well Drilling- Construction Services Task 3.7: Test Well-Aquifer Testing and Analysis Task 3.8: Water Quality Testing/Analysis Task 3.9: Groundwater Model Refinements Task 3.10: Documentation/Reporting i i 1 1 I ARTICLE 4-BASIC ENGINEERING SERVICES Section 4.3 is added to the Original Agreement as follows: 4.3. WELL SITING FEASIBILITY and TEST WELL DESIGN, PERMITTING, and MONITORING PROGRAM Following authorization to proceed with the Well Siting Feasibility phase of the project,ENGINEER shall: 4.3.1. Consult with OWNER to clarify and define OWNER's requirements for the Project and review available data. This will include meeting with both Engineering and Parks staff to discuss current Master Plan for the Sports Park and review test well siting requirements and constraints. 4.3.2. Advise OWNER as to the necessity of OWNER's providing or obtaining from others, data or services and assist OWNER in obtaining such data or services,as appropriate.During this phase of the project, coordination with the following entities is anticipated: -Canal and/or ditch companies; - COB's water rights attorney(s); - Other engineering or planning consultants (i.e., Sports Park infrastructure, COB Water Facilities Plan); and, -Well drilling contractor(s). 4.3.3. Identify water rights and shares within the COB water portfolio that would be appropriate for mitigation,and investigate the relative value(i.e.,risk,uncertainty) and legal availability of specific water rights to determine suitable mitigation approach(es). Provide risk-/cost-based analyses of various mitigation scenarios and present results in a comparative matrix. 4.3.4 Identify and analyze requirements of governmental agencies (e.g., Montana DEQ) having permitting authority for proposed test well drilling activities and potential development of a Public Water Supply (PWS), to include a Source Water Delineation Assessment and Source Water Protection Plan, 4.3.5. Lead coordination and meetings with Montana DNRC to discuss approaches and options for mitigation of stream and groundwater depletions resulting from well pumping. 4.3.6. Develop a test well program that provides a design framework for test well drilling, pumping, and monitoring. Determinations of sustainable well yield and produced water quality will be completed. 4.3.7. Refine and update the Focus Area groundwater model to support specific pumping simulations and mitigation scenarios. Furnish all hydrogeologic modeling files in electronic format to OWNER. 4.3.8 Prepare and furnish complete paper and electronic copies of a technical report ("Report")that includes all data, analyses, and findings from the work completed during this phase of the project to OWNER, and at the same time furnish copies as directed by OWNER to agencies and/or other parties having regulatory responsibilities or other participation in any part of the Project. Furnish 3 printed copies and an electronic copy(in searchable PDF format)of the Report and review in person at request of OWNER. i i i I i The Well Siting Feasibility and Test Well Design Permitting and Monitoring phase of the project will be completed and work products submitted within 400 calendar days following written authorization from OWNER to ENGINEER to proceed with this phase of the project (the 400 calendar days to complete and submit final work products is based on authorization to proceed from the OWNER no later than April 3,2018). ARTICLE 6-COMPENSATION FOR ENGINEERING SERVICE Section 6.3 is added to the Original Agreement as follows: 6.3 LUMP SUM AGREEMENT to complete WELL SITING FEASIBILITY AND TEST WELL DESIGN,PERMITTING,AND MONITORING PROGRAM 6.3.1. Payment. For completing Well Siting Feasibility and Test Well Design,Permitting, and Monitoring Program services performed as Basic Engineering Services under Section 4.3 of this Amendment No. 2 to Professional Services Agreement the OWNER shall pay a total sum in the amount of$ 190,100.00 for such services. Exhibit B (Cost Summary) to Amendment No. 2 provides a detailed breakdown of costs for each work task. 6.3.2. Payment Schedule. Total cumulative payments for Well Siting Feasibility and Test Well Design, Permitting, and Monitoring Program (Section 4.3) shall not exceed the following ceilings: $ 190,100.00 (100% of fee) until all work tasks are complete and a report documenting the well siting feasibility findings and the test well design, permitting and monitoring program is submitted to the OWNER, including all hydrogeologic model files. 6.3.3. General. Engineer shall submit monthly statements for services rendered. The statements shall be based upon Engineer's estimate of the proportion of the total services actually completed at the time of billing, subject to any limitations on Payments based on completion of tasks or specific retainage requirements pursuant to the payment provisions of the Agreement. 6.3.4. Reimbursable Expenses. Only those expenses specifically identified for payment under this Agreement are reimbursable.All other project related expenses are included in the Lump Sum Payment for the Basic services and are not separately reimbursable. Additional Services specifically identified under the scope of services for payment under 6.3 are not separately reimbursable. i i i I Except as specifically amended herein, the original agreement shall remain in full force and effect and the Parties shall be bound by all terms and conditions therein. j IN WITNESS WHEREOF, the parties hereto do make and execute this Agreement on the day and year first above written. CITY OF BOZEMAN,MONTANA RE/SPEC INC. (ENGINEER) BY: BY: (City Manager) ice-Pr ident) DATE: 3 lol l DATE: Z /7-7 2-©1 �pF g02 , �� r ■ ♦ jam' ATTEST: '.' % City Clerk ��'�• 1883 • •' APPROV D AS TO ORM BY: C'ty ttorney) i EXHIBIT A-SCOPE OF SERVICES (TO AMENDMENT NO.2 OF PROFESSIONAL SERVICES AGREEMENT BETWEEN CITY OF BOZEMAN AND RESPEC FOR GROUNDWATER INVESTIGATION) 4 EXHIBIT A - SCOPE OF SERVICES GROUNDWATER INVESTIGATION PHASE 3 CITY of BOZEMAN, MONTANA February 2018 1. INTRODUCTION In fall 2017, the RESPEC-NewFields Team completed Phases 1 and 2 of a Groundwater Investigation for the City of Bozeman ("COB"). Phase 1 identified nine preliminary locations for potential well field development. Multiple pumping simulations were completed to assess location and magnitude of associated stream depletions. Subsequent mitigation scenarios were simulated utilizing a steady-state groundwater model to evaluate the effects on spatial distribution of stream depletions when mitigation water is infiltrated at certain locations at a constant flow rate. Phase 2 proceeded with development of a transient groundwater model designed to improve model functionality as a planning tool throughout its domain in the Gallatin Valley.Additional detail was incorporated into the model to enhance its predictive capabilities with respect to timing and location of stream accretion/depletion that could result from groundwater development and/or mitigation. The calibrated transient model was further modified to illustrate how the model could be used to evaluate a specific area, or Focus Area, in greater detail. For this example, an area was identified to the southwest of the City of Bozeman to further evaluate potential impacts from pumping a proposed well. The Focus Area was identified based on drawdown contours from a previous steady-state simulation of pumping from two of the nine potential well locations identified in Phase 1.The two well locations, PW-11 and PW- 16, were identified as preferred locations by COB. Well PW-11 has been proposed for siting at COB's Sports Park near the current northwest extent of city limits. This location will be the primary focus for a test well and related mitigation options explored in the next phases of the project. 2. WORK SCOPE— PHASE 3 Phase 3 of the project includes a feasibility evaluation and alternatives analysis for well siting within the Sports Park property and due diligence of possible mitigation strategies and water right availability for a well field at this location.A kickoff meeting with COB Engineering and Parks staff is proposed at the outset of Phase 3 to discuss well siting at the Sports Park in context of the current master plan for site development.A meeting with DNRC is also proposed early in this phase of the project to discuss mitigation strategies.Additional dialogue and meetings with DNRC are proposed as more information from the well field testing program becomes available and a preferred mitigation approach is developed.The Focus Area groundwater model will be refined to support specific pumping simulations and mitigation scenarios. Development of a preliminary draft Source Water Delineation Assessment Report (SWDAR) and Source Water Protection Plan (SWPP) will be completed. A test well program will be implemented that will: 1) provide a design framework for the test wells, 2) provide guidelines and specifications for well pumping, 3) identify monitoring well locations for use during well pumping, 4) install and pump test wells, and 5) specify protocols for water quality sampling and testing.Test well results, including maximum sustainable yield estimates and water quality parameters, will be utilized to evaluate specific well location(s), including an evaluation of the ability to mitigate predicted stream depletions City of Bozeman, Montana 1 Groundwater Investigation—Phase 3 RESPE[ ( :NewFields Scope of Services General Assumptions 1. Based on recent correspondence between COB and RESPEC-NewFields,future water demand for COB is projected using an 'ultimate build out' (UBO) approach, which uses the total area of undeveloped land in the City's planning area to arrive at expected water demand within this geographic area. COB's UBO peak demand is calculated at 54 MGD. According to COB, a total of 34 MGD of this is sourced from the Sourdough Water Treatment Plant (WTP), 4 MGD is delivered from Lyman Creek, and the remaining 16 MGD will be developed from new groundwater sources. Long-range capital planning needs for groundwater supply infrastructure are based on this 16 MGD peak figure,and COB is aiming for 4 MGD capacity for an initial groundwater development project. Depending on the locations of new wells installed by COB,the location(s)of available mitigation water rights,the timing of predicted depletions associated with new wells, and the period of use associated with mitigation water rights, COB will likely need to acquire sufficient water rights for mitigation to offset between 65%and 100% of the volume of water pumped from the new wells. Multiple stages of groundwater modeling have been completed thus far in support of this project. These models comprise the foundation for future modeling efforts and refinements that will occur as part of Phase 3 of the project. The steady state groundwater flow model of the Gallatin Valley described in the Groundwater Investigation Report - Phases 1 and 2 (RESPEC-NewFields, 2017) has been modified to simulate monthly seasonal conditions. The modified model was then used to support an evaluation of potential pumping impacts and mitigation approaches. The model is structured in a manner such that additional detail can be incorporated into specific areas within the valley. In summary,groundwater modeling work completed thus far includes: ■ Conversion of the Gallatin Valley Steady-State model to a Transient Model, which facilitates the simulation of seasonal conditions; ■ The model was also converted to MODFLOW-USG. The unstructured grid version of MODFLOW facilitates the incorporation of greater detail in areas of interest while retaining relative simplicity in areas where this level of detail is unnecessary and/or unknown; ■ The transient Gallatin Valley model was calibrated to groundwater levels and stream fluxes; and, ■ An example was provided illustrating the approach to creating a Focus Area, adding more detail into that area,and using the model in the Focus Area to simulate pumping and quantify resulting impacts on groundwater and surface water. 2. RESPEC-NewFields will lead procurement of right-of-entry permissions as may be necessary for private property access during the project. Public properties will be prioritized for site access and monitoring activities to the extent practicable. COB responsibilities include: a. Assist with landowner negotiations for rights-of-entry on private lands, as needed. b. Development of easements as may be necessary for test well access, pumping, and monitoring of pumping effects. 3. COB staff, or designated representatives, will continue to lead dialogue with members of ditch and canal companies, individual water right owners, and other interested groups (e.g., AGAI, MARS) and parties regarding the progress of this project. In particular, negotiations with said groups/parties City of Bozeman, Montana 2 Groundwater Investigation—Phase 3 REr :NewFields Scope of Services regarding potential water right purchases/transfers, conveyance rights, land acquisitions or other matters relevant to this project. RESPEC-NewFields will be available to participate in these discussions as needed. 4. Out-of-scope items will be identified as soon as possible by RESPEC/NewFields' project managers. These items will be negotiated with COB for inclusion in the contract,as needed.We encourage open dialogue about this and will actively seek opportunities to increase efficiencies throughout the course of the project to avoid budget overages. Staffing RESPEC will be the prime consultant for purposes of contracting with COB and will be the primary firm for communication between COB and the RESPEC/NewFields team. However, we encourage open communication during the project and support direct contact between representatives of both RESPEC and NewFields and COB staff, as appropriate. Primary contact persons at each company, and their roles within this project, include: RESPEC: Michael Rotar, PE Project Manager: primary contact (Bozeman)for all administrative matters and team coordination; engineering co-lead Troy Benn, PE Assistant Project Manager: secondary contact (Bozeman); engineering co-lead;water rights lead Bill Dreyer, PE Site Civil Engineer: well drilling and aquifer testing design and oversight Alan Leak, PE Principal-in-Charge: municipal water supply planning/design lead NewFields: Cam Stringer, P.G. Hydrogeologist: public water supply development; aquifer characterization;groundwater modeling Adam Perine, P.G. Hydrogeologist: public water supply development; water rights/mitigation planning Gary Andres, P.G. Hydrogeologist: groundwater modeling lead The following specific work tasks are designated to complete Phase 3 of the project: Phase 3: Well Siting Feasibility and Test Well Design, Permitting and Monitoring Program 3.1: Well Siting Feasibility Evaluation and Alternatives Analysis 3.2: Preliminary Source Water Delineation Assessment (SWDA) &Source Water Protection Plan (SWPP) 3.3: Mitigation Options/Water Rights Evaluations 3.4: Coordination/Meetings with DNRC 3.5: Test Well Design/Permitting 3.6: Test Well Drilling-Construction Services 3.7: Test Well-Aquifer Testing and Analysis 3.8: Water Quality Testing/Analysis 3.9: Groundwater Model Refinements 3.10: Documentation/Reporting City of Bozeman,Montana 3 Groundwater Investigation—Phase 3 Pam[ ( ':NewFields Scope of Services PHASE 3— DETAILED WORK TASK DESCRIPTIONS Task 3.1 Well Siting Feasibility Evaluation and Alternatives Analysis Objective: Determine feasible locations for siting of test well and production well(s). Engineer Services: 1. Review Sports Park Master Plan and identify potential locations for test well and/or production well(s) that would meet source water protection requirements found in Montana DEQ Circular PWS-6. Complete an alternatives analysis for test/production well siting considering other factors related to the Sports Park property(i.e., master plan,adjacent parcel facilities and land uses,etc.). 2. Conduct meeting(s), as may be necessary, with COB Engineering and Parks staff to discuss potential locations for test/production wells within the Sports Park property. Considerations for well siting will include the following: ■ Review of plans and specifications for facilities at the Bozeman Sports Park, including athletic fields, irrigation, utilities, restroom facilities, and public access (roads,trails, etc.). ■ Review of the Water Facilities Plan Update (AE2S, 2017), and proposed water distribution infrastructure in vicinity of the Sports Park(e.g.,future phases of west Transmission Main,etc.). ■ Review of the Wastewater Facilities Plan Update (Morrison-Maierle, HDR, 2015), and proposed infrastructure in vicinity of the Sports Park(e.g., Norton East Ranch Outfall Diversion, etc.). ■ Proximity and distance from existing and proposed facilities and structures located on adjacent parcels or within public right-of-way (e.g., existing roads and ditches, pending extensions of Oak St. and Cottonwood St.). This will include residential subdivisions, the new high school to be built immediately south, and the North Western Energy substation located directly east, across Flanders Mill Road. ■ Potential noise impacts from equipment operations and maintenance. ■ Maintenance access. ■ Aesthetic considerations. Engineer Deliverable: Technical Memorandum providing Executive Summary and detailed narrative of the well siting feasibility evaluation and alternatives analysis results. A preferred or recommended alternative will be presented. Graphics, including schematic drawings of conceptual well field location and configuration will be provided. Summary of Scoped Meetings with COB Engineering and Parks Staff: ■ Two (2) meetings with COB Engineering and Parks staff. Duration of the meetings is expected to be 2 hours or less.Also includes attendance at City Commission meeting, as necessary. City of Bozeman,Montana 4 Groundwater Investigation—Phase 3 REPG I MewFieldS Scope of Services Task 3.2 Preliminary Source Water Delineation Assessment (SWDA) & Source Water Protection Plan (SWPP) Objective: Evaluate the source water to be produced by the well field to identify potential contaminants. Engineer Services: Well designs will be subject to Public Water Supply requirements provided by MDEQ in Circulars PWS-5 (Ground Water Under the Direct Influence of Surface Water - GWUDISW) and PWS-6 (Source Water Protection Delineation). Steps to be followed in preparation of a Source Water Protection Plan (SWPP) include: 1. Preparation of a Source Water Delineation and Assessment Report (SWDAR), which includes assessment of potential and existing contaminant sources, a source water susceptibility assessment, and management activities to be implemented to protect the source water. Engineer Deliverable: 1. Complete preliminary drafts of SWDAR and SWPP for new groundwater source (Note: Submittal of these documents to DEQ, and subsequent coordination, as required, to support DEQ approvals for development of a PWS are not included as part of this task). Task 3.3 Mitigation Options/Water Rights Evaluations Objective: Develop two or three mitigation strategies to discuss with DNRC. Background: RESPEC and COB have identified water rights and shares within the COB water portfolio that would be appropriate for mitigation.In general,any water rights or shares currently owned by COB but not currently being used would be ideal candidates to provide mitigation. Specifically, the Sourdough Creek storage water reservation (41H 70118-00) and the Bozeman Creek Reservoir Company (41H 30459-00) could provide mitigation from the Sourdough Creek source. Privately-owned domestic purpose water rights within the COB distribution area may have mitigation potential. All these water rights need to be thoroughly investigated to determine their relative value for mitigation. Several potential mitigation scenarios have been discussed at a preliminary level with COB. Table 1 provides a synopsis of these mitigation scenarios and their potential advantages(pros) and disadvantages(cons). City of Bozeman, Montana 5 Groundwater Investigation—Phase 3 Rr[ ( :NewFields Scope of Services Table 1. Summary of potential mitigation scenarios. Scenario Pro Con 1)Acquire GW Rights Might be cheap water to Many owners to negotiate with. acquire. Historic Consumptive Flow/Volume may not fully Use analysis would be easy. No mitigate. diversion needed for mitigation. 2)Canal/Ditch Shares In some cases, City already owns Potential conflicts with other the water. Ditch may be used as ditch users. Hard to an infiltration gallery. Potential verify/quantify actual recharge. for mitigation by comparison of Separate recharge infrastructure claimed acreage with current may be necessary. Ditch shares irrigated acres via aerial do not include mitigation as a photography/GIS analyses. beneficial use. 3)Acquire Irrigation Right(s) Water is likely available for Expensive.Transactions set purchase. market for water right value. Need to find senior water rights. Potential loss of ag. production and open space. DNRC Change process is difficult. 4)Water Bank Theoretical ease of operation. Negotiation between stakeholders. Long timeline. 5) Mystic Lake Right No operational change Hard to mitigate depletions on necessary to mitigate Bozeman Hyalite Creek? DNRC Change Creek/E Gallatin. Put an unused process is difficult(period of non- right to use. use). 6)Aquifer Conveyance of Argument may avoid Change This option has not been tried yet Existing Rights Application challenges with with DNRC. Mitigation purposes. 7) Utilize Basin Closure New municipal surface water Junior priority date. Overcoming Exceptions at MCA 85-2- claims for spring high flows hydropower water rights 343(2)(d)&(2)(c)(iii) allowed by exception to basin objections. closure. 8) Purchase Canyon Ferry Might be able to purchase a May have to work with DNRC Storage Shares from BOR small spring flow(—2-3 cfs) State Projects for any adverse from BOR for mitigation. effects at Toston. Engineer Services: 1. Conduct Cost-Benefit Analysis of eight potential mitigation scenarios in Table 1 (and potentially others that may be identified). Complete a qualitative risk/uncertainty evaluation between scenarios and assign a risk factor to modify the cost-benefit of mitigation scenarios accordingly. Eliminate scenarios with lower cost-benefit values. a. Document analyses to further evaluate specific scenarios. City of Bozeman, Montana 6 Groundwater Investigation—Phase 3 .NewFields Scope of Services 2. Evaluate acquisition of groundwater rights within the COB distribution area. a. Determine potential options for COB to acquire privately-owned groundwater rights (for example, offer discount on water bill or offer set fee per water right, etc.). b. Estimate cost to acquire ownership. Filing DNRC water right ownership update. Analysis to include two scenarios: a) allowing lawn/garden use to remain; b) 100% groundwater right to mitigation. c. Determine cost in Change Application for changing "domestic" purpose to "mitigation". d. Determine cost to convert from individual well to municipal supply. Evaluate impact on municipal water supply to serve demands previously supplied by individual wells. Determine costs to supply that municipal water. e. Consult DNRC on how historic flow/volume will be evaluated and whether more detailed modeling is necessary. Discuss concept of using a single, centralized recharge well in model simulations. f. Locate potential groundwater rights and map in GIS. g. Adjust groundwater model to show effectiveness of mitigation. Model two scenarios: 1) keep the well for lawn/garden use; 2)convert all well water to mitigation. 3. Evaluate using canal/ditch shares as mitigation. a. Evaluate a location for recharge. For example, utilize a section of the Farmers Canal and measure rate of recharge(Note:data from MBMG's ongoing study of the Farmer's Canal will be used to the extent practicable). Similarly, evaluate a section of the Mystic Lake Ditch to recharge Bozeman Reservoir Co.shares.Alternatively,find and test land for a recharge basin (see 18.5-acre COB parcel off Mystic Lake ditch [Geocode: 06-0698-01-4-01-01-00001). b. Evaluate the annual cost of using ditch shares for mitigation. c. Determine whether water rights (Farmers, Middle Creek Ditch Co., West Gallatin Canal) need a change to "mitigation"or"sale/marketing". 4. Evaluate using Mystic Lake water right for mitigation/conveyance through aquifer. a. Quantify the flow rate/volume to be left instream to provide mitigation. Adjust the groundwater model to shift depletions from ditches/canals/spring creeks to East Gallatin and/or Bozeman Creek. b. Ask DNRC about challenges to Change to "mitigation" or a restart of the use of the right. c. Talk with FWP about mitigation of instream rights on Bozeman Creek and East Gallatin. d. Evaluate potential for a recharge basin (see 18.5-acre COB parcel off Mystic Lake Ditch). e. Measure Mystic Lake Ditch for recharge potential. May have to measure ditch loss three times from May-October. 5. Evaluate the potential of Lichtenberg right(41H 154136-00)to provide mitigation on Hyalite Creek and/or elsewhere. a. Quantify COB's historic use flow and volume. b. Evaluate period of non-use/possible"intent to abandon"evidence. c. Evaluate potential objections to re-starting use. d. Estimate cost of changing to "mitigation". City of Bozeman,Montana 7 Groundwater Investigation—Phase 3 PEcACfC ( :NewFields Scope of Services 6. Evaluate using the Bozeman Fan aquifer as a conveyance of existing water rights/shares. a. Adjust modeling to show connectivity of recharge location and PW-11. Determine necessary recharge rates for scenarios that include: (1) no surface water (Hyalite or Sourdough Creek) being diverted during portions of the winter; and (2) use of COB's stored water in Hyalite Reservoir for aquifer recharge via diversion/conveyance in the Hyalite transmission main(s). b. Measure recharge capability of Farmers Canal (using MBMG's ongoing study to extent practicable) and/or other recharge locations (e.g., Mystic Lake Ditch). 7. Investigate GW recharge locations if recharge is identified as a component of the mitigation strategy. NOTE: Evaluate Farmers Canal, West Gallatin Canal, Middle Creek Ditch, and Mystic Lake Ditch for recharge opportunities. We suggest investigating one recharge location off each of these conveyances. COB currently owns an 18.5-acre parcel off the Mystic Lake Ditch which could offer an effective recharge location. RESPEC and COB will need to identify locations adjacent to West Gallatin (a.k.o. Kleinschmidt) Canal, Middle Creek Ditch and Farmers Canal suitable for recharge gallery testing. a. Identify potential recharge locations off West Gallatin Canal, Farmers Canal, Middle Creek Ditch and Mystic Lake Ditch. b. Conduct percolation tests at one or more locations. c. Use hydraulic conductivity rates to calculate irrigation season recharge capacity. d. Conceptual design of recharge galleries. 8. Evaluate potential to apply an exception to the basin closure rule that allows for storage of water during high spring flows [MCA 85-2-343(2)(d)] or the use of surface water by or for a municipality [MCA 85-2-343(2)(c)(iii)]. 9. Evaluate the potential purchase of storage shares in Canyon Ferry Reservoir from the Bureau of Reclamation (BOR). Summary of Scoped Meetings: Meetings with COB staff and water rights attorney ■ One (1) kickoff meeting with COB staff. Duration of the meeting is expected to be 2 hours or less. ■ Two (2) interim meetings with COB staff. Duration of the meetings is expected to be 2 hours or less. Task 3.4 Coordination/ Meetings with DNRC Objective: Meet with DNRC to discuss mitigation strategies and determine viability, and adequacy of groundwater model for impact/mitigation evaluation of water right applications. Engineer Services: 1. Work with COB staff and COB's water rights attorney(Peter Scott)to define mitigation strategies for discussion with DNRC. Prioritize/rank mitigation approaches and determine preferred approach. City of Bozeman, Montana g Groundwater Investigation—Phase 3 P.ESPW I INewFieldS Scope of Services 2. Meet with DNRC early in Phase 3, including Bozeman Field Office staff and Russell Levens, Hydroscience Section Supervisor/Ground Water Hydrogeologist. Discuss mitigation options,including a preferred approach, and potential viability going forward. 3. Conduct additional meetings with DNRC staff, as needed, during Phase 3 of the project to vet mitigation options as more data are collected or information becomes available. Utilize this information in cost-benefit analyses to better inform risk or uncertainty in given mitigation scenario. Summary of Scoped Meetings with DNRC: ■ Up to three (3) meetings with various DNRC staff. Duration of the meetings is expected to be 2 hours or less. Task 3.5 Test Well—Design/Permitting Objective: Complete a basic design and provide field parameters and drilling requirements for well field testing in the general vicinity of PW-11 (i.e., COB Sports Park property). Engineer Services: 1. Work with COB staff to determine locations for test wells at Sports Park property. 2. Identify proposed drilling depth(s). 3. Determine appropriate size (diameter)for production test wells. 4. Determine drill sequencing and steps for test well development. 5. Permitting: a. Complete/submit Notice of Intent Form (NOI-07) of the Construction Dewatering General Permit (MTG070000) to Montana DEQ. The purpose of this form is to notify MDEQ of the proposed discharge of water from pumping tests, however effect of the permit really applies only to discharge of produced water to a receiving surface water body. Engineer Deliverables: 1. Engineering drawings and specifications for the test well that are sufficient for a drilling contractor to bid the project and utilize for drilling/development of the test well. Task 3.6 Test Well - Drilling Objective: Install two test wells within the boundaries of the Sports Park property to evaluate lithology, aquifer thickness,and preliminary groundwater yield and water quality. Engineer to provide construction services during test well drilling. NOTE:Obtain available test data and well logs from the new high school's geothermal system. City of Bozeman,Montana 9 Groundwater Investigation—Phase 3 RC[ ) NewFields Scope of Services Engineer Services: Contractor Procurement ■ Prepare bid package to be distributed to contractors. Bid package to include: ■ Coordinate and lead a pre-bid conference/field review of the project. Record meeting notes; record all questions and requests for additional information, and issue copies of the meeting notes. ■ As necessary, prepare and issue Addenda to the Contract Documents. ■ Recommend award of a contract for construction of the project by providing the following services: 1. Tabulate the bids received after reviewing them for responsiveness. 2. Determine by reasonable investigation,the known financial condition and performance history of the low bidder and second low bidder. 3. Prepare a letter documenting the bid review and including a recommendation for award of the contract for construction. 4. Prepare and transmit Notice of Award and Notice to Proceed. Construction Administration ■ Coordinate and lead Pre-Construction conference with contractor. Establish a working relationship between the parties; discuss schedule, work activities, submittals, payment processing, and record keeping. ■ Review submittals from the contractor. ■ Maintain file for correspondence, meeting notes,work change directives, and field orders. ■ Review and approve contractor pay applications. Recommend modifications as appropriate. ■ Notify COB of potential changes to scope or schedule. Field Observation and Quality Assurance ■ Oversee test well drilling, including documentation of lithology encountered during drilling and the depth/character of water-bearing zones encountered. ■ Observe contractor's work on a regular basis. Prepare reports to COB informing them of work status. ■ Provide clarifications,interpretations and Field Orders(as needed)for efficient completion of the work. Task 3.7 Test Well—Aquifer Testing and Analysis Objective: Complete aquifer test and monitoring of the well field to determine reliable yields and drawdown effects in vicinity of the wells. Engineer Services: The testing and monitoring program will contain the following important components: ■ Perform a constant-rate aquifer test of the more productive of the two test wells, while monitoring drawdown in both the pumping well and the other test well. City of Bozeman, Montana 10 Groundwater Investigation—Phase 3 REc � :NewFields Scope of Services ■ Evaluate aquifer response in existing nearby wells and/or within a localized network of installed groundwater monitoring wells. ■ Conduct surface water flow monitoring, as necessary,to satisfy DNRC aquifer testing requirements. Pressure transducers with dataloggers and analog pressure gages will be used in conjunction with flow meters to collect accurate data during the tests and during recovery periods.On-site supervision protocols will be prepared to ensure that tests are adequately monitored to collect accurate, defensible data that can be used by COB to make go-forward decisions. Test results will be analyzed to determine aquifer characteristics within the area of influence of the well field including transmissivity, storativity, specific capacity, boundary conditions, and safe yield. We will also review impacts to other groundwater or surface-water users that may result from long-term groundwater production. Predictive analysis will be conducted to estimate the zone of influence at 1, 5, 10, and 20 years into the future under maximum safe yield and design discharge (if different). Analytical methods, assumptions used in these calculations, and the results will be presented in a final report. Aquifer test results will be incorporated in the project groundwater model (described in Task 3.9). Task 3.8 Water Quality Testing and Analysis Objective: Evaluate water quality produced from the well field to determine suitability as a public water supply and potential water treatment methods that may be required. Engineer Services: Collect water samples during the pump testing program for lab analyses. Evaluate biological and chemical character of groundwater within the source and recharge areas of selected wells through review of available water quality data. Anticipated sources for water quality data include: COB reports; MT-DNRC; Montana Dept.of Environmental Quality(MDEQ); MBMG; Gallatin Local Water Quality District(GLWQD); and other locally available data sources. Water samples collected from the wells will be analyzed by an EPA-certified commercial laboratory for standard drinking water quality parameters associated with a public water supply. Data will be reviewed to assess any need for water treatment to mitigate existing water quality impairment (Note: Include Jill Miller, COB Assistant Water Treatment Plant Superintendent, in data review and discussion). The groundwater source will be evaluated for its suitability as a public water supply per DEQ rules/regulations. Task 3.9 Groundwater Model Refinements Objective: Add detail to the Focus Area groundwater flow model such that supply well pumping simulations and mitigation strategies can be effectively modeled in support of a Beneficial Use Permit Application and associated mitigation plan. City of Bozeman, Montana 11 Groundwater Investigation—Phase 3 �l� I NewFields Scope of Services Engineer Services: The existing Focus Area groundwater model provides a reasonable prediction of potential well pumping impacts and the effectiveness of mitigation scenarios. However, it is likely the DNRC will require some additional detail in support of a Beneficial Use Application. Pending the results of the DNRC coordination and meetings (Task 3.4) we anticipate the following additional refinements will be necessary: ■ Irrigation ditches/canals: Revise current model where irrigation channels all have common specifications to include more ditch-specific information (where available) including elevation, size, and period of use; ■ Streams: Potentially add additional relevant streams to model within proposed well zone of influence based on existing surface water rights; ■ Layering/geology: Update as necessary based on test well installation; ■ Model calibration: Calibrate to test well pumping data; and ■ Existing wells with water rights: Add to model for impact evaluation. Following refinement,the model will be recalibrated,which will include simulating the test well pumping test, and to evaluate potential pumping impacts and mitigation scenarios. Task 3.10 Documentation/ Reporting Objective: Document the results of Tasks 3.1 through 3.9 and present conclusions regarding the suitability of the test well locations with respect to physical groundwater availability and the feasibility of mitigating the effects of proposed groundwater pumping. Engineer Services: Complete a comprehensive, bound report that includes all text, figures, tables, appendices and documentation of analyses used to present a sound basis for the conclusions and recommendations provided.The report will discuss findings of the well field testing and recommendations for final siting and production well development and include documentation of model refinements and simulation results. The report will also be furnished electronically in a searchable PDF format. Engineer Deliverables: 1. Provide three (3) bound hard copies of the report, and one (1) electronic copy in searchable PDF format. Provide all hydrogeologic modeling files developed during the project. 3. ESTIMATED COST OF THE WORK The total estimated cost for this Scope of Services is$ 190,100.00.A detailed cost summary for each task is provided under separate cover as Exhibit B to the Professional Services Agreement. City of Bozeman, Montana 12 Groundwater Investigation—Phase 3 RFSPF[ ) :NewFields Scope of Services EXHIBIT B-COST SUMMARY (TO AMENDMENT NO.2 OF PROFESSIONAL SERVICES AGREEMENT BETWEEN CITY OF BOZEMAN AND RESPEC FOR GROUNDWATER INVESTIGATION) Exhibit B-PSA Amendment No.2 Cost Summary COST SUMMARY Date 2/26/2018 (PSA Amendment No.2) Project Title City of Bozeman -Groundwater Investigation Firm Name RESPEC/NewFields PHASE 3: Well Siting Feasibility and Test Well Design,Permitting and Monitoring Program Task 3.2:Prelim. RESPEC Labor Costs Task 3.1:Well Siting Source Water Delin. Task 3.6:Test Well TOTALS Feasibility Evaluation Assess.&Source Task 3.3:Mitigation Task 3.4: Drilling- Task 3.7:Test Well- Task 3.8:Water Task 3.9: Task 3.10: and Alternatives Water Protection Options/Water Coordination/ Task 3.5:Test Well Construction Aquifer Testing and Quality Testing/ Groundwater Model Documentation I Analysis Plan Rights Evaluations Meetings with DNRC Design/Permitting Services Analysis Analysis Refinements Rep ring Name Project Role 2018 Rate/Hr Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hours Cost A.Leak Principal-in-Charge $170.00 12 $2,040 2 $340 12 $2,040 6 $1,020 4 $680 2 $340 2 $340 0 $0 2 $340 2 $340 44 $7,480 M.Rotar Project Manager $150.00 30 $4,500 8 $1,200 80 $12,000 16 $2,400 12 $1,800 16 $2,400 16 $2,400 16 $2,400 8 $1,200 20 $3,000 222 $33,300 W.Dreyer Project Engineer11 $135.00 24 $3,240 32 $4,320 16 $2,160 0 $0 16 $2,160 24 $3,240 30 $4,050 20 $2,700 0 $0 10 $1,350 172 $23,220 M.Johnson Project Engineer 1 $115.00 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 10 $1,150 8 $920 0 $0 0 $0 18 $2.070 T.Benn Engineer IV $105.00 40 $4,200 40 $4,200 too $10,500 36 $3,780 24 $2,520 48 $5,040 32 $3,360 20 $2,100 20 $2,100 40 $4,200 400 $42,000 E.Ellwood Engineer I/CAD Technician $80.00 24 $1,920 16 $1,280 0 $0 0 $0 12 $960 0 $0 8 $640 8 $640 0 $0 0 $0 68 $5,440 J.Wilbanks Administrative Asst. $65.00 2 $130 2 $130 14 $260 0 $0 2 $130 0 $0 2 $130 4 $2601 0 $01 16 $1,040 32 $2,080 RESPEC Labor Subtotall 132 $16,030 100 $11,470 212 $26,960 56 1 $7,200 70 1 $8,250 90 1 $11,020 100 $12,070 76 $9,020 30 1 $3,6401 88 $9,930 956 $115,590 Percent of RESPEC Labor Total 13.87% 9.92% 23.32% 6.23% 7.14% 9.53% 10.44% 7.80% 3.15% 8.59% NewFields Labor Costs Name Project Role 2018 Rate/Hr Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hr Cost Hours Cost C.Stringer Asst.PM/Hydrogeologist $145.00 4 $580 4 $580 20 $2,900 16 $2,320 4 $580 2 $290 2 $290 4 $580 8 $1,160 4 $580 68 $9,860 A.Perine Asst.PM/Hydrogeologist $130.00 16 $2,080 12 $1,560 64 $8,320 20 $2,600 16 $2,080 12 $1,560 12 $1,560 12 $1,560 32 $4,160 10 $1,300 206 $26,780 G.Andres Hydrogeologist $145.00 4 $580 4 $580 20 $2,900 6 $870 0 $0 0 $0 2 $290 0 $0 120 $17,400 12 $1,740 168 $24,360 S.Fox GIS Analyst $100.00 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 $0.00 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 0 $0 o $0 0 $01 o $D o $0 0 $0 1- $o o $0 0 $01 0 $01 0 $01 0 $0 NewFields Labor Subtotall 24 $3,240 20 1 $2,7201 104 1 $14,120 42 1 $5,7901 20 $2,660 14 1 $1,850 16 1 $2,140 16 1 $2,1401 160 1 $22,720 26 1 $3,6201 442 1 $61,000 Percent of NewFields Labor Total 5.31% 4.46% 23.15% 9.49% 4.36% 3.03% 3.51% 3.51% 37.25% 5.93% ill SUBTOTAL LABOR 156 $19,270 120 1 $14,190 316 1 $41,080 100 1 $12,990 90 1 $10,910 104 1 $12,870 116 1 $14,210 92 1 $11,160 190 1 $26,360 114 $13,550 1,396 $176,590 Percent ofLabor Total 10.91% 8.04% 23.26% 7.36% 6.18% 7.29% 8.05% 6.32% 14.93% 7.67% Other Direct Costs Item 2018 Rate Units Cost Units Cost Units Cost Units Cost Units Cost Units Cost Units Cost Units Cost Units Cost Units Cost Units Cost Reproduction B&W Copies $0.10 200 $20.00 100 $10.00 500 $50.00 200 $20.00 200 $20.00 50 $5.00 100 $10.00 200 $20.00 200 $20.00 1,000 $100.00 2,750 $275 Color(8.5 x 11) $1.50 20 $30.00 20 $30.00 50 $75.00 20 $30.00 20 $30.00 10 $15.00 20 $30.00 20 $30.00 100 $150.00 50 $75.00 330 $495 Color(I I X 17) $2.50 20 $50.00 20 $50.00 50 $125.00 10 $25.00 20 $50.00 10 $25.00 20 $50.00 20 $50.00 50 $125.00 50 $125.00 270 $675 Color Plots $5.00 20 $100.00 10 $50.00 20 $100.00 10 $50.00 10 $50.00 0 $0.00 10 $50.00 20 $100.00 10 $50.00 20 $100.00 130 $650 Postage $25.00 0 $0.00 2 $50.00 0 $0.00 2 $50.00 2 $50.00 0 $0.00 2 $50.00 2 $50.00 2 $50.00 2 $50.00 14 $350 Mileage $0.535 420 $224.70 0 $0.00 0 $0.00 1000 $535.00 0 $0.00 450 $240.75 0 $0.00 0 $0.00 0 $0.00 0 $0.00 1,870 $1,000 Per diem-hotel $99.00 2 $198.00 0 $0.00 0 $0.00 1 $99.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 3 $297 Per diem-meals $64.00 4 $256.00 0 $0.00 0 $0.00 2 $128.00 0 $0.00 4 $256.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 10 $640 Airfare $600.00 1 $600.00 0 $0.00 0 $0.00 1 $600.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 2 $1,200 Rental car-per day $65.00 0 $0.00 0 $0.00 0 $0.00 2 $130.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 2 $130 Survey $500.00 1 $0.00 0 $0.00 0 $0.00 0 $0.00 1 $1,000.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 2 $1,000 Lab work Varies 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 1 $5,000.00 0 $0.00 0 $0.00 1 $5,000 Historic aerials Varies 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0.00 0 $0 Misc.supplies $100.00 2 $200.00 2 $200.00 0 $0.00 1 1 $100.00 2 $200.00 5 $500.00 4 $400.00 2 $200.00 0 $0.00 0 $0.00 18 $1,800 SUBTOTAL CDC's $1,679 $390 1 $350 1 $1,767 $1,400 $1,042 $590 $5,450 $395 $450 $13,512 7.1% ODC%of Project Total WORK TASK TOTALS $20,949 $14,580 $41,430 $14,757 $12,3101 1 $13,9121 1 $14,8001 $16,610 $26,755 $14,000 $190,102 Task Percent of Total Project Cost 11.02% 7.67% 21.79% 7.76% 6.48% 7.32% 7.79% 8.74% 14.07% 7.36% GRAND TOTAL = $190,100.00 City of Bozeman, Montana _ Groundwater Investigation Phase 3 LJ WNewFields February 2018