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12 Value Engineering - Value engineering may be completed at the preliminary design level so that only items that are most important to the City are included to reduce project cost.
Quality Assurance / Quality Control – Continuous Quality Control and Technical Review are key tools in WWE’s project management philosophy. Quality, budget, and schedule performance are all optimized when technical issues are identified and resolved as early as possible in the project delivery process. A cornerstone of our Quality Control philosophy, and our work philosophy in general at WWE is that senior staff are integrally involved with the
development of all deliverables, and that junior level staff are not left to produce a majority of the work without
hands-on involvement and mentoring from our highly
experienced staff. Junior level staff perform tasks that are appropriate for their level of experience which helps
improve the cost efficiency of our work but are not thrown in “over their heads,” which is a common root cause of
projects that go “off the tracks.”
Project Schedule and Budget - The budget and schedule
will be continuously reviewed to ensure the project is on track. Any potential changes to schedule and budget will be communicated with the City during the progress
meetings.
Scope
Task 1 Meetings and Project Management
ENGINEER will monitor and track the project budget and schedule to ensure that all deadlines are met and that the project budget is not exceeded. ENGINEER will coordinate with the project team to address items such as project schedule, project budget, and current issues of concern. ENGINEER will also monitor progress and coordinate the activities being performed by all sub-consultants associated with the project and submit monthly invoices to the CLIENT. The following will be performed under this subtask:
1) Project Communication and Control
a) Coordination of all project team activities
b) Communication of project progress and issues to CLIENT staff c) Project schedule maintenance and control of project tasks to keep project schedule on track d) Cost tracking of all engineering activities and active cost control of fees 2) Quality Assurance/Quality Control
a) Implement Quality Assurance/ Quality Control Policy
3) Kickoff Meeting (virtual)
Meetings • Kickoff Meeting (virtual)
• Monthly progress meetings (virtual)
• Design review meetings are included in other tasks
• Jurisdictional Agency Coordination in other tasks
Deliverables • Agenda, meeting notes (within 5 business days), and design log for each meeting
• Monthly reports and invoices (by email)
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13 Task 2 Preliminary Engineering Report
Develop and submit a preliminary engineering report (PER) with sufficient information to complete environmental documentation and initiate detailed design. At a minimum, the PER will include the following items. Our subconsultant, HLS, will provide the caretaker’s unit layout. 1) Recommend a preferred site layout, with emphasis on biological and preliminary geotechnical evaluations. Designate proposed areas for development, conservation, and mitigation. 2) Provide reservoir site plan, and profile – complete with site access, parking, utilities, fencing, and drainage information.
3) Provide a project description sufficient to support the project environmental documentation for CEQA/ NEPA.
4) Summarize primary design elements.
5) Summarize permits required for the Project and include a workflow andschedule to obtain the permits. Permits will be coordinated with the City’s environmental firm. 6) Prepare construction cost estimates for the proposed reservoirs and site layout and develop innovative solutions to minimize cost impacts.
7) Identify construction access and potential equipment and material lay-down areas. 8) Prepare an anticipated schedule for construction, including the number of working days, phasing, and potential mitigations related to environmental seasonality.
Meetings • Preliminary Engineering Report Review meeting, (virtual) Deliverables • Preliminary Engineering Report, draft and final, PDF • Agenda, meeting notes, and design log
Task 3 Survey
The survey will be started after approval of the preliminary engineering report. Our subconsultant, HLS will provide surveying. HLS will review any, and all, reasonably obtainable, recorded surveys, deeds and/or plats that will assist in determining the street Rights-of-Way, parcel boundaries, and utility easements. Also, existing Horizontal and Vertical survey control records will be researched and ties to those monuments will be utilized. Information obtained from record documents will be used to Per the RFP the full extent of the topographic or boundary survey, and the quantity or location of any easements is not fully known. The area will include the proposed reservoir compound area, secondary caretaker unit area, and conveyance piping. The survey work shall cover all areas of proposed disturbance and include the following:
1. One-foot contours
2. 50-ft survey corridor along the proposed pipe centerline
3. Tree size and type
4. Identify all affected easements, facilities, and property boundaries
5. Identification of all visible above-grade features and obstructions to the proposed piping, as well as any marked, below-grade utilities
6. Survey limits to include sufficient data for environmental compliance (CEQA) Meetings • None
Deliverables • Survey data: Raw data points and processed data • Topographic/existing conditions maps, PDF and digital format P r o p o s a l s f o r R e s e r v o i r D e s i g n
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14 Task 4 Geotechnical
Our subconsultant, BAJADA will assist with the geotechnical work for the following scope.
Pre-Exploration
Prior to subsurface exploration, BAJADA will mark proposed drill hole locations and will contact Underground Service Alert (USA) to assist in identifying potential buried utility conflicts.
BAJADA will obtain necessary drilling permits from Mendocino County Environmental Health.
Because the reservoirs and improvements potentially cover multiple parcels and a permit is required for each parcel explored, we have assumed that exploration will occur on three parcels.
The project site is moderately to heavily wooded and vegetated. Few roads project through the study area. We have assumed that access to exploration locations will need to be established and have included two days of equipment time to establish that access.
Subsurface Exploration
We propose exploring the site using exploratory drill holes. Locations of those drill holes cannot be identified until the siting of the proposed reservoirs, caretaker’s unit, and storage building have been identified.
Drilling will be performed using a track-mounted drill rig as follows:
PROPOSED DRILLING SCHEDULE
Location Number of Drill
Holes
Maximum
Drill Hole
Depths
Drilling Method
Reservoir Sites 3 (per reservoir) 35 to 50 Rotary-wash
Associated Pipeline
Alignment(s)1 4 10 to 15 Hollow- or solidstem
Caretaker’s Unit 2 25 Hollow- or solidstem
Shop Building 2 25 Hollow- or solidstem
Parking Lot 2 5
Hollow- or solidstem
It is assumed that up to 1,500 lineal feet of pipeline will be designed for this project. Longer pipeline extents could require additional drill holes.
Sampling will be performed at about 5-foot depth increments using a California modified split spoon (CM) or Standard Penetration Test (SPT) sampler. Rock is not anticipated to be encountered during drilling. CM and SPT samplers will be driven using a 140-pound auto trip hammer in accordance with standard test method ASTM D1586-11. SPT samples will be collected in sample bags, labeled, and transported to our laboratory for testing. California modified split-spoon samples will be collected in
2.5-inch diameter by 6-inch-long brass or stainless-steel sleeves. Those sleeves will be capped, labeled, and transported to our office for assignment of laboratory testing.
BAJADA personnel will log the soils exposed in the explorations, and will obtain samples for visual examination, classification, and laboratory testing. Logging of soils will be performed using the Unified Soil Classification System (USCS). We will estimate exploration locations using a compass and tape P r o p o s a l s f o r R e s e r v o i r D e s i g n
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15 measure from known geographic control points on the property and using a handheld Global Position System (GPS) receiver. All drill holes will be backfilled to the ground surface with cement grout.
Cuttings from drilling operations will be dispersed on site.
Laboratory Testing
Soil samples will be delivered to a laboratory for testing. It is anticipated that the following laboratory tests will be performed during this study:
ANTICIPATED LABORATORY TESTING SCHEDULE
Test Standard Test Method Number of Tests
In-Situ Moisture Density ASTM D2937 60
Atterberg Limits ASTM D4318 2
Grain-Size Distribution ASTM D422 6
Direct Shear ASTM D3080 4
Unconfined Compression ASTM D7012 4
Consolidation ASTM D2435 1
Max. Dry Density/Opt. Moisture
Content ASTM D1557 2
R-Value Cal 301 1
Soil Chemistry (Corrosivity) AASHTO T290/291 4
The actual types and numbers of tests that will be performed will be determined after the field exploration has been performed.
Geotechnical Analysis
Upon completion of the above-noted tasks, we will perform geotechnical evaluations for the project.
Those evaluations will include the following:
▪ Geologic hazards that could impact the project.
▪ Subsurface soil profiles at the reservoir sites.
▪ Depth to groundwater, where encountered.
▪ Excavatability of the on-site soils.
▪ Estimate of shear wave velocity (Vs30) based on encountered soil types and consistencies. ▪ Slope stability of proposed internal and external reservoir slopes under static and dynamic (earthquake) loading conditions.
▪ Liquefaction potential.
▪ Anticipated total and differential settlement values beneath the proposed caretaker’s unit and storage building.
▪ Static and dynamic lateral earth pressures for buried structures. ▪ Modulus of soil reaction (E’) values for earth materials composing the pipeline trench sidewalls and backfill materials.
▪ Evaluation of potential for expansive soil influence on foundations and improvements. ▪ Evaluation of potential for site soils to be corrosive to buried concrete and steel. ▪ Allowable bearing capacities, friction coefficients, passive pressures, etc. ▪ 2022 CBC seismic design parameters; and
▪ Structural pavement sections for the proposed parking lot.
Slope stability evaluations will be performed using the computer program SLIDE2 developed by Rocscience.
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16 Geotechnical Reporting
Results of the field investigation, laboratory tests, and engineering analyses will be summarized and concluded in a geotechnical report specific. That report that will contain, at a minimum, the following:
▪ A description of the proposed project including a site plan showing the approximate location of the explorations advanced for this study.
▪ A description of selected, existing, available data collected, reviewed, and utilized during this study.
▪ A discussion regarding geologic hazards that could impact the project site, including liquefaction.
▪ A description of the site surface and subsurface conditions encountered at the time of our field investigation.
▪ A geologic map showing the distribution of earth materials across the project site. ▪ Geologic cross sections prepared across selected portions of the site depicting subsurface soil and groundwater conditions encountered during this study. ▪ Findings, conclusions and recommendations regarding slope stability at the site. ▪ Estimates of total and differential settlement that could impact the proposed structures, including mitigation measures to reduce those settlement values to tolerable thresholds, when necessary.
▪ 2022 CBC seismic design parameters.
▪ Recommendations related to geotechnical aspects of:
✓ Site grading and drainage, including compaction criteria and potential reuse of on-site soils as select backfill materials.
✓ Cut and fill slope inclinations.
✓ Allowable bearing capacities for structure foundations. ✓ Allowable passive pressures for foundations, thrust blocks, and piers. ✓ Lateral earth pressures (active, at-rest, and passive) under static and dynamic conditions for buried structures.
✓ Coefficients of friction for soil materials.
✓ Recommendations for pipeline backfill and compaction; and ✓ Recommendations for temporary excavations and shoring. ▪ An appendix presenting a summary of the field investigation including exploration logs denoting sampling intervals and laboratory test results. ▪ An appendix presenting the results of our laboratory testing.
Optional Task - Groundwater Monitoring (not currently included) This optional task that could be added consists of the construction of a monitoring well within each proposed reservoir so that the depth of groundwater can be recorded over time. Shallow groundwater is known to be present in the project area at depths that could influence construction of the project. It is anticipated that this information is important to project design and that contractors could utilize those data in preparing their bids for the project. In addition, the monitoring and reporting of groundwater depths can help reduce the potential for changed conditions construction claims.
Permits will be obtained for constructing the monitoring wells. The proposed monitoring wells will be constructed using 2-inch-diameter slotted and solid PVC pipe for the entire depth of the three drill holes. The wells will be protected using a locking stovepipe type well protector. A HOBO groundwater datalogger will be inserted into each of the wells to monitor groundwater depths at regularly P r o p o s a l s f o r R e s e r v o i r D e s i g n
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17 programmed time intervals. Those data will be downloaded after one year of logging and reported in a technical memorandum.
Task 5 Environmental/CEQA Compliance Coordination
The Water Works team will coordinate with the City and environmental consultant on the CEQA compliance work being completed as part of a separate City project.
Task 6 Design
The design includes the following items.
• Three 45 acre foot reservoirs for raw water storage
o Shade balls are assumed for the cover
o Non-motorized gates or valves
o Level transmitters in each reservoir
o SCADA monitoring only control system
o SCADA communications system including cellular modem or radio system. Radio assumed operable at project site with 30-foot antenna
o Outdoor electrical equipment stanchion with receptacle and light o Access for firefighting aircraft to siphon water from the reservoir • Caretaker’s unit with waste disposal and potable water service from City • Storage unit
• Fenced paved parking lot with manual gates and pit toilet The design will be compliant with the requirements of the funding sources which are assumed to be provided by the City at notice to proceed. Our subconsultant, HLS, will provide the caretaker’s unit layout.
30% Design Submittal
Based on the preliminary engineering report, 30% drawings will be created for review by the City. The filing items will be confirmed.
1. Avoidance of special status species
2. Earthwork balance
3. Intake design from new reservoirs to conveyance piping
4. Conveyance piping
5. Site access, security, and drainage
6. BMPs
7. Minimizing construction cost
8. Minimizing maintenance issues
The drawings will include the site layout, civil improvements, and pipeline alignments.
Meetings • 30% Design Review Meeting (virtual)
Deliverables • 30% Design Drawings (22x34), 4 copies, pdf • Cost Opinion, pdf
• Meeting agenda and notes
60% Design Submittal
ENGINEER will prepare the necessary contract documents (construction plans, typical details, specifications, and cost estimates) for the project based on the design criteria and recommendations included in the 30% Design. The City’s standard front end will be used. The preparation of contract documents will be completed in three submittals: 60%, 90% and 100% Documents. Prior to each P r o p o s a l s f o r R e s e r v o i r D e s i g n
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18 submittal, the work product will be reviewed through ENGINEER’s QA/QC process and, upon submittal to the CLIENT, will have been reviewed and revised in accordance with the QA/QC plan.
Submittal of the 60% and 90% review documents will occur at Project Review Workshops with the entire project team. The contents of the submittal will be presented to CLIENT to familiarize the group with the information being submitted and the design thought process behind the work. Following the Project Review Workshop, the CLIENT will have a 2-week review period to provide any additional comments which were not brought forward in the Project Review Workshop.
The 60% design submittal will communicate to the CLIENT the project design so that meaningful discussion can take place and the core project decisions can be made as a group. ENGINEER will use a combination of design drawings, manufacturers’ information and other communication tools to allow the CLIENT an opportunity for significant input into the design process. The following deliverables will be provided by ENGINEER with this submittal:
1) Drawings:
a) Civil design including reservoir compound, secondary caretaker’s unit, and access road b) Pipes
c) Electrical and instrumentation design
d) Fencing
e) Demolition. Timber harvest plan is assumed to be part of the City’s separate scope. f) Erosion Control BMPs
2) Technical Specifications Outline
3) Construction Cost Opinion
Meetings • 60% Design Review Meeting (virtual)
Deliverables • 60% Design Drawings (22x34), pdf, 3 copies • Technical Specifications outline, pdf, 3 copies
• Cost Opinion, pdf, 3 copies
• Meeting agenda and notes
90% Design Submittal
The 90% Design Submittal will be a complete project package, with all design drawings, details and specifications completed. The period between 90% and 100% should solely be dedicated to minor inter-disciplinary coordination and final QA/QC checking of all documents.
Meetings • 90% Design Review Meeting (virtual)
Deliverables • 90% Design Drawings (22x34), pdf, 3 copies • Specifications, pdf, 3 copies
• Cost Opinion, pdf, 3 copies
• Meeting agenda and notes
• Final Geotechnical Report, pdf
100% Design Submittal
100% Documents will be prepared. Comments provided by the CLIENT at the 90% design stage or QA/QC comments generated by ENGINEER’s QA/QC review team will be addressed and the project set will be completed.
Meetings • None
Deliverables • 100% Design Drawings (22x34) pdf, 1 wet signed copy, pdf • 100% Specifications, 1 wet signed copy, pdf
• Cost Opinion, pdf
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19 Task 7 Project Schedule and Permitting
Schedule
The project schedule will be updated at key milestones. The construction schedule will include postconstruction activities.
Permitting
The anticipated permits are listed below. The City is to pay all permit fees and service application fees.
SWPPP
A SWPPP will be created for the project site.
Mendocino County
The following permits are expected from Mendocino County. • The onsite wastewater treatment system (OWTS) permit through the Local Agency Management Plan (LAMP) from the county will be obtained for the caretaker’s unit and parking lot bathroom.
• Building permit for the caretaker’s unit and storage building Our subconsultant, HLS, will assist with the caretaker’s unit permitting.
Timberland Harvest Permit
The timberland harvest permit as part of the City’s separate environmental scope.
Division of Drinking Water
Coordination with Division of Drinking Water is not required because it is a raw water project.
Task 8 Bidding Assistance
1) Attend a pre-bid meeting hosted by the City for prospective bidders and/or contractors and be available to answer questions.
2) Review and prepare written responses addressing technical questions submitted by the prospective bidders during the bid phase for inclusion in the bid addenda. Assumes 8 hours of assistance.
Task 9 Quality Control/Quality Assurance
All submittals (plans, calculations, reports, and associated documents) will adhere to a City approved quality assurance/quality control (QA/QC) program. The deliverables will be reviewed internally before submission to the City.
Alternate 1 – Noyo River Crossing Lining or Replacement This is assumed to be a standalone task that would be added to the main project. To minimize cost, it is assumed that the existing Noyo River Crossing pipeline may be lined. There are several lining options including performing Pressure Cured-in-Place-Pipe (CIPP), slip lining with HDPE, or using a liner product like Primus Line. The options will be compared to determine the most feasible and costeffective option. Items to be addressed are ensuring the lining can go through the existing 45° elbows, P r o p o s a l s f o r R e s e r v o i r D e s i g n
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20 restraining the pipe, and ensuring the lined pipeline meets the City’s desired pressure rating. Our subconsultant, HLS, will provide survey for this task.
Alternate 2 – Culvert Replacement for Segment 2
This is assumed to be a standalone task that would be added to the main project. Drawings and specifications will be created for replacing five culverts. The size of the culverts will be based on information provided by the City. No hydraulic modeling of the watershed is included.
Our subconsultant, Rincon will assist with the design to ensure that the construction and development of culverts prevent or minimize impacts on hydraulic conditions and effects on aquatic habitats that can block fish from migrating to upstream habitats. Rincon will describe general culvert design and criteria for the identification of conceptual-level passage components that would provide upstream and downstream volitional passage for California Coastal Chinook salmon, Northern California steelhead, and California Coast coho salmon. Rincon will briefly describe each species’ migration timing and aquatic habitat requirements based on available literature. The description will be used to support the culvert replacements for Segment 2 of the Raw Water Line Replacement Project as part of the feasibility of fish passage assessment. Our subconsultant, HLS, will provide survey for this task.
Assumptions
1) The requirements to be met for the grant funding will be provided by the City at notice to proceed.
2) Project must be compliant with By America and America Iron and Steel. 3) The timberland harvest permitting is covered under the City’s separate environmental project.
4) The security is assumed to be provided with manual gates and no cameras. 5) The reservoir gate operators are assumed to be manual. 6) The scope does not include hydraulic or habitat simulation modeling, or technical studies to provide biological objectives.
7) Current fish barrier databases are not comprehensive and may not include all fish barriers in the project areas.
8) Fish passage analyses will be conducted by qualified fish biologists and will be based on regulatory fish passage criteria. These analyses should only be used as a planning tool. 9) The scope does not include monitoring plans and obtaining permits needed for culvert construction.
10) Assumes the pipeline is 1,500 feet or less.
11) Assumes that we will be allowed access to the site during normal working hours. 12) City of Fort Bragg to provide written permission from the property owners for access and entry onto private property.
13) City of Fort Bragg to provide current title reports of the subject properties. 14) Filing/recording any Records of Survey or Corner Records is excluded from the Proposed Compensation portion of this proposal.
15) No property corners will be set as part of this survey. 16) A record, best-fit boundary will be used, the boundary will be calculated from record maps and adjusted to a minimal number of survey monuments located in the field. 17) Plotting of any existing easements within the project area is excluded from this proposal. 18) The City of Fort Bragg shall be responsible for notifying property owners in advance for any activity that is to take place near their properties that lie outside the public Right-of-Way.
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24 CONSULTANT AGREEMENT
Water Works Engineers confirms that we are willing and able to execute the City’s standard Professional Services Agreement with the following requested changes.
We respectfully request discussion of the following provisions in Exhibit A -Professional Services Agreement:
Section 5
Request deletion of 5.5 in its’ entirety