EXHIBIT 10-A
Implementation Plan
Water Project 2
Phase 2 Aquifer Storage and Recovery
Work Plan Tasks
Task 1: Prepare
Permanent Project Specifications
Project specifications to be developed internally, with
outside engineering support (Board 11/21 meeting), for use by CEQA consultant
to prepare scope of services proposal and fee estimate. Receive proposals from CEQA consultant and
bring to Board for January 2012 approval.
Budget: internal, plus budgeted outside engineering support $396,000
Timeline: 1 month (Dec
2011)
Task 2: Develop Detailed Project Description
Internal staff will finalize the formal detailed project
description, including site layout, maps, pipelines and alignments, and
connections to Cal-Am and PG&E.
Staff will coordinate with CEQA consultant for incorporation into CEQA
document. Updated project cost estimates
will be prepared.
Budget: internal
Timeline: 3 months
(Dec 2011 Feb 2012)
Task 3: Prepare/Approve Relevant CEQA Document
Staff coordinates with environmental consultant regarding
document determination -- likely that either an Addendum to previous EIR or Mitigated
Negative Declaration will be prepared.
Anticipate April Board approval (simultaneously authorize funds for
release of bid package to retain ASR-4 drilling contractor). Utilize environmental document to secure
remaining regulatory authorizations.
Budget: $92,000
Timeline: 4 months
(Jan Apr 2012)
Task 4: Conduct Geotechnical Investigation; Prepare Backflush Pit Plans, Bid Specifications, Award Construction
Contract, Secure Permits
A geotechnical investigation is required prior to design of
the onsite backflush percolation pit. The results of this investigation will be
used to design the backflush pit and the required
diversion wall between the toe of the pit and the school. Specifications will be prepared for bid
solicitation to qualified contractors.
Approvals from MPUSD and City of Seaside will be secured prior to
construction.
Budget: internal,
plus outside engineering support per Task 1
Timeline: 6 months
(Feb Jun 2012)
Task 5: Prepare ASR-4 Well Detailed Design and
Construction Bid Documents; Award Construction Contract
Final designs assembled with outside engineering technical
support. Final ASR-4
well (Seaside Middle #2 well) design selection and technical specifications to
be incorporated into bid package for solicitation to drilling contractors in
early May 2012. Anticipate
contractor selection early June 2012.
Budget: internal,
plus outside engineering support per Task 1
Timeline: 4 months
(Mar Jun 2012)
Task 6: Develop Full Site Civil, Electrical, Building
Plans
Plans, specifications and bidding support to be secured for
site underground water and electrical piping, and electrical control equipment
building.
Budget: internal,
plus outside engineering support per Task 1
Timeline: 4 months
(Mar Jun 2012)
Task 7: Secure Permits, Drill/Construct ASR-4 Well
Secure drilling permits by early June 2012. Select successful contractor, erect sound
wall, drill well, construct temporary discharge disposal pipeline, develop
well, and conduct well production performance testing. Most work will be conducted during school
summer break to minimize construction noise impacts. Drill well June/July 2012. Construct well July/August 2012.
Budget: $1,900,000
Timeline: 3 months
(Jun Aug 2012)
Task 8: Construct
Backflush Pit and Diversion Wall
Backflush pit and diversion wall
construction will be a major earthwork project which will require the bulk of
the work to be conducted during the school break to minimize impact on school
operations. June September 2012.
Budget: $235,000
Timeline: 4 months
(Jun-Sep 2012)
Task 9: Secure Building Permits for Electrical
Building
The approximate 20x30onsite electrical control equipment
building design is subject to review and approval by the MPUSD, and will be
submitted to the City of Seaside Board of Architectural Review prior to
approving final plans. In addition, a building
permit for the structure must be secured prior to construction.
Budget: internal,
plus outside engineering support per Task 1
Timeline: 4 months
(Jul Oct 2012)
Task 10: Design, Bid, Award Contracts to Equip ASR-4
Well
Upon completion of construction of ASR-4 well per Task 7,
the wells ancillary equipment (i.e., pump, motor, ASR flow control valve,
surface piping and valving) will be designed,
solicited for bids, and contracted for construction.
Budget: $502,000
Timeline: 4 months
(Sep Dec 2012)
Task 11: Bid, Award Contracts, Secure Permit for
Electrical Control Equipment
The electrical control equipment inside the Electrical
Building will be purchased separately from qualified vendors. In addition, a separate electrical permit is
required prior to installation of the equipment inside the building.
Budget: $537,000
Timeline: 5 months
(Jan May 2013)
Task 12: Construct, Equip Electrical Building
Separate contracts must be secured for: (a) building construction, and (b) installation
of electrical control equipment.
Budget: $218,000
Timeline: 5 months
(Jun Oct 2013)
Task 13: Complete Site Paving, Fencing, Landscaping
Paving, fencing and landscaping designs will be prepared and
submitted for approval by MPUSD prior to securing applicable permits for this
final site completion work.
Budget: $121,000
Timeline: 3 months
(Oct Dec 2013)
Summary of
Estimated Costs
|
Task 1: Prepare
Permanent Project Specifications
Task 2: Develop
Detailed Project Description
Task 3: Prepare/Approve
Relevant CEQA Document
Task 4: Conduct
geotechnical investigation; prepare backflush pit
plans, bid specifications, award construction contract, secure permits
Task 5: Prepare
ASR-4 Well Detailed Design and Construction Bid Documents; Award Construction
Contract
Task 6: Develop
Full Site Civil, Electrical, Building Plans
Task 7: Secure
Permits, Drill/Construct ASR-4 Well
Task 8: Construct Backflush Pit and Diversion Wall
Task 9: Secure
Building Permits for Electrical Building
Task 10: Design,
bid, Award Contracts to Equip ASR-4 Well
Task 11: Bid, Award
Contracts, Secure Permit for Electrical Control Equipment
Task 12: Construct,
Equip Electrical Building
Task 13: Complete
Site Paving, Fencing, Landscaping
|
$396,000
n/a
$92,000
n/a
n/a
n/a
$1,900,000
$235,000
n/a
$502,000
$537,000
$218,000
$121,000
|
|
Contingency (15%)
|
$601,000
|
|
Total Cost Estimate for Remaining Water Project 2
Facilities
|
$4,602,000
|
Supporting Figures
A map showing the location of the Water Project 2 site in
relation to the Water Project 1 site is shown on Figure 1. A preliminary
construction schedule for the remaining Water Project 2 facilities, showing
task and subtask breakdown, is shown on Figure 2. The preliminary
site development plan for Water Project 2 is shown on Figure 3.
A Note about
Additional Phases of ASR
The Water Project 2 description only carries the District
through the expansion to Phase 2 of ASR.
However, there has been discussion surrounding additional aquifer storage
and recovery in the Santa Margarita sandstone aquifer. Our own supply discussion includes up to
3,000 AFY of additional supply from ASR.
While the resource and technology has now been proven, the aquifer has not
yet been sufficiently studied for preferred expansion sites, nor has the
environmental process been initiated.
Expansion beyond the components included in the original
Regional Project EIR may require a separate EIR of their own, as well as an
investigation into the aquifer hydrogeologic conditions
at potential future expansion sites. Although Cal-Am has already taken steps to explore a third phase of
ASR (without direct District support as with Water Project 2), much work will
need to be done on environmental assessment and technical assessment. Those costs are not included or discussed in
this work plan.
Figure 1. Vicinity map
showing Santa Margarita (Water Project 1) and Seaside Middle School (Water
Project 2) Aquifer Storage and Recovery sites.
Figure 2. Water Project 2 (Seaside Middle
School) ASR Facility, Preliminary Construction Schedule
Figure 3. Preliminary site development plan
for Water Project 2 (Seaside Middle School) ASR facilities.
Implementation Plan
Water Project 3: Local Desalination at
Navy Property Located Near the Naval Support Activity, Monterey
Work Plan Tasks
Task 1: In-House Specifications and Preliminary
Constraints Analysis
Staff is to determine a proxy footprint for a 2 million
gallon per day (mgd) Sea Water Reverse Osmosis (SWRO)
desalting treatment plant and identify the ability to fit on site. A minimum of 4 mgd
of feed water may be required (note: additional feedwater
capacity would be required if 50% filter efficiency cannot be achieved). Identify expansion space, if any. Identify additional infrastructure required
(see attached Figure 1 and Tables 1 and 2).
Determine approximate power needs.
Identify options for source water and brine discharge. Develop into summary document.
Meet with following to discuss initial project scope:
U.S. Navy
to discuss facilities layout and discuss a letter of intent
California
Coastal Commission to discuss set-backs and infrastructure
Monterey
Bay National Marine Sanctuary to discuss intake and discharge
NOAA
Fisheries to discuss intake and discharge
Regional
Water Quality Control Board to discuss intake and discharge
California
American Water to discuss infrastructure requirements
California
Department of Parks and Recreation to discuss land use limitations
State Lands
Commission to discuss intake and discharge
Additional agencies if a new pipeline is required for
brine discharge to the Regional Treatment Plant owned by Monterey Regional
Water Pollution Control Agency (MRWPCA):
City of
Sand City
City of
Seaside
City of
Marina
MRWPCA
Develop a preliminary list of constraints based on meetings.
Budget: Internal
Timeline: 4-6 months
Task 2: Hydrostratigraphic
Field Investigation
Two alternatives may be studied for intake source water and
brine discharge: 1. an open ocean intake and discharge; 2. a Ranney collector and separate diffuser installed under the
ocean seafloor. For the latter
alternative, offshore hydrogeologic conditions need
to be analyzed to determine the suitability for development of feedwater from under the seafloor in proximity to the
Navy-owned site.
A 1990 hydrologic investigation performed by Staal, Gardner, and Dunne (SGD) for MPWMD concerning the
coastal basin near the site showed that development of the inland coastal area
as a brackish water source would be impractical. The potential for locating beach wells was
also investigated. The thickness of sand
overlying Monterey formation (shale beds) adjacent to the site was determined
to be about 20 feet, with a yield per well of about 100 gallons per minute (gpm). A 4 mgd intake system would require approximately 30 wells
spaced 200 feet apart to avoid interference.
This would require just over one mile of beach front area for a well
field. The beach front area from the
Monterey Harbor to the City of Seaside includes the Monterey Municipal Beach,
Del Monte Beach and Monterey State Beach.
These are all popular recreation areas and some of the beach area is considered
sensitive habitat that is host to plant and animal species protected under the
Endangered Species Act. In addition to
the long-term potential for coastal erosion, access to the beach to drill and
maintain such a large number of wells could be problematic.
The 1990 SGD study did suggest that the District could
consider a subsea intake system using a horizontal well placed just below the
ocean floor. Analysis of the offshore
undersea area must address the needs of the collection mechanisms and
discharges identified in the specifications and constraints analysis. Results should identify favorable locations
(e.g. ancient channels and/or areas with an adequate overlying thickness of
sand), confirm intake yield sufficiency, and investigate the potential for
discharging brine through a diffuser pipe located under the seafloor.
Budget: $100,000 - $125,000
Timeline: 4 months
Task 3: Develop
Project Facilities Alternatives
A consulting engineer will be hired to develop conceptual
layouts, sizing, and costs for prospective facilities, including seawater
collection and disposal alternatives, transmission facilities required, treated
water storage, and other appurtenant infrastructure.
Budget: $50,000 - $100,000
Timeline: 2 months
Task 4: Execute Constraints Analysis
Based on the identified concept designs, the consultant will
evaluate each concept plan against 8 criteria:
i)
Technical Feasibility: Viability of source water production; hydrogeologic issues; brine disposal methodology; shoreline
erosion.
ii)
Reliability:
Is water supply sustainable?
iii)
Permitting:
List permits and timeline.
Foreseeable permit hurdles?
iv)
Public Acceptance: Is there organized opposition?
v)
Environmental:
Energy usage; Impacts to Monterey Bay National Marine Sanctuary; etc.
vi)
Regulatory:
Compliance with Seaside Basin Adjudication and CDO
vii)
Cost: Capital, operations, and cost per
acre-foot.
viii)
Schedule:
Project timeline and completion date
Land use issues will be detailed primarily with the
California Coastal Commission (CCC), State Lands Commission, the California
Department of Parks and Recreation (DPR), the Department of the Navy, the City
of Monterey and other agencies as required.
Feedwater collection, water
treatment, and brine discharge constraints will likely include interaction with
the NOAA Monterey Bay National Maritime Sanctuary (MBNMS), which adopted
desalination facility siting guidelines in May 2010,
the US Fish & Wildlife Service (FWS), National Marine Fisheries Service
(NMFS), the CCC, State Lands Commission, California Department of Fish and Game
(DFG), State Water Resources Control Board (SWRCB) for water quality under its
Ocean Plan, and the Central Coast Regional Water Quality Control Board (RWQCB)
through administration of discharge permits.
Other agencies include the County Department of Public
Health (DPH) for well drilling, the Monterey Bay Unified Air Pollution Control
District (MBUAPCD), and possibly the Monterey Regional Water Pollution Control
Agency (MRWPCA) who will require brine characterization studies for its NPDES
permit if their outfall is utilized.
Once constraints are identified, project alternatives will
be screened and ranked, and a preferred alternative identified.
Budget: $100,000 - $125,000
Timeline: 4 months
Task 5: Develop Detailed Project Description
For the top 2-3 alternative concept designs, a consultant
will identify and carry out additional field studies that are needed to further
refine the project. A final project
description will be prepared for the EIR, including site layout, source and
discharge water facilities, pipelines and alignments, and connections to Cal-Am
and Navy property (if appropriate). Cost
estimates will be prepared.
If pilot testing is recommended, a detailed work plan will
be developed and schedule revised.
Budget: $40,000 - $80,000
Timeline: 4 months
Task 6: Prepare Combined Environmental Impact Report/Environmental
Impact Statement
Because the site is a federal facility, a NEPA Environmental
Impact Statement (EIS) will be required and a combined EIS-EIR used to satisfy
the CEQA process. Requirements for an
EIS and EIR and their preparation may be considered to be similar, but
additional time may be required.
It should be noted that development of a lease agreement
with the Department of the Navy is anticipated to take approximately 18 months
and would be carried out concurrently with the environmental analysis for the
project.
Budget: $250,000 - $500,000
Timeline: 24 months
Task 7: Detailed Design and Construction Bid
Documents
Assumed at 20% of construction.
Budget: $11,200,000
Timeline: 24 months
Task 8: Permitting and Environmental
Budget: $250,000 - $500,000
Timeline: 24 months,
overlaps with Detailed Design
Task 9: Construction and Start-Up
Use estimates from example projects until engineers are
hired. Marina Coast water District
estimated capital costs for 1,500 AF updated from 2007 report are $42.2 million (from
Desalination Facility Basis of Design Report, March 2007, RMC Water and Environment)
Budget: $56,000,000
Timeline: 30 months
Summary of
Estimated Costs
|
Task 1: In-House
Specifications and Preliminary Constraints Analysis
Task 2: Hydrostratigraphic Field Investigation
Task 3: Develop
Project Facilities Alternatives
Task 4: Execute
Constraints Analysis
Task 5: Develop
Detailed Project Description
Task 6: Prepare
Environmental Impact Report
Total
Preconstruction Costs
|
n/a
$100,000 - $125,000
$50,000 - $100,000
$100,000 - $125,000
$40,000 - $80,000
$250,000 -
$500,000
$540,000 - $930,000
|
|
|
|
|
Task 7: Detailed
Design and Construction Bid Documents
Task 8: Permitting
and Environmental
Task 9:
Construction and Start-Up
Total
Construction Costs
|
$11,200,000
$250,000 - $500,000
$56,000,000
$67,450,000 -
$67,700,000
|
Site Layout
Table 1
Intake/Discharge and Solids Handling Facilities
·
Intake and discharge pumps
·
Solids clarifiers/tanks
·
Sludge storage
·
Pre-treatment/microfiltration
·
Retention tank (for brine discharge)
Approximate area: 18,200 sq. ft. (130 ft. x140 ft.)
Table 2 Reverse
Osmosis Train and Clear Water Facilities
·
RO feedwater and train
·
Post treatment tank (clearwell)
·
Chemical storage
·
Office
·
Laboratory
·
Shop
·
Electrical room
·
Restroom
Approximate area: 39,000 sq. ft. (130 ft. x300 ft.)
Total Area = 57,200 sq. ft.
Estimated Timeline
Implementation Plan
Water Project 4
Groundwater Replenishment
(from MRWPCA)
Work Plan Tasks
Task 1: Bench Scale Testing of Wastewater - Evaluate
the water quality of the wastewater, identifying constituents of concern for
testing, conduct FEEM testing to determine fouling potential, develop water
quality objectives, develop two alternative treatment process, develop capital
and O&M cost estimates, develop pilot test protocol, layout, and cots
estimate.
Task 2: Design, Procure, Install and Operate Pilot
Treatment Plant
a)
Help MRWPCA determine if best or rent or
purchase MF/UF/RO facilities. Bid and
start procurement
b)
Delivery of pilot facilities, installation,
start-up, and operate pilot MF/UF and RO facilities for at least 6 months.
Task 3: Pilot
Treatment Evaluation, IAP and Regulatory Acceptance - Analyze the data from
the pilot testing and review it with the Independent Advisory Panel (IAP) and
regulators
Task
4: Detailed Design of Advanced Water
Treatment (AWT) Plant - Create detailed design that can be bid by a
contractor.
Task 5: Permits and Environmental Review - Obtain
all the permits plus CEQA and NEPA (if required) review.
Task 6: Value Engineering - During early and
possibly late design, have an independent review performed to look at less
costly approaches.
Task 7: Construction of AWT - Bid, award, and
construct the AWT facilities.
Task 8: Start-Up of AWT - Perform
capacity and performance testing, train operators, and begin operation.
Task 9: Develop Groundwater Workplan
- Conduct site visit and identify field constraints. Identify the permits and other
requirements. Identify how to
characterize the vadose zone, the monitor well
requirements, and the sampling plan.
Meet with City of Seaside and the Watermaster.
Task 10: Design Well and Sampling Plan - Design
the well so it can be bid. Design the
water sampling plan for the well after drilling.
Task 11: Procure and Drill Test Monitoring Well - Bid
and award a contract to a well driller.
Well driller to obtain continuous core sample for analysis while
drilling the well. Install casing so
that water can be sampled from the Paso Robles Aquifer.
Task 12: Water Sampling, Modeling, IAP and Approval of
Injection and Sampling Plans Sample the Paso Robles water. Develop injection and sampling plans and have
validated by IAP. Create a simple model
from core sample information about travel times from the injection wells to the
monitoring wells.
Task
13: Design and Operate Pilot Injection
Wells Design the number, size, and depth of the injection wells. Determine the water source, tracer to be
used, flow rates and durations for test.
Construct the facilities. Operate
the facilities.
Task 14: Permits and Environmental Reviews
Obtain all permits needed. Complete CEQA
and NEPA, if needed, reviews prior to construction.
Task 15: Pilot Injection Evaluation, review and
Acceptance Review the data collected.
Present finding and conclusions to IAP, CDPH, and RWQCB for acceptance.
Task
16: Detailed Design and Value
Engineering Develop documents for bid. At least once during design have an
independent party review the concepts and preliminary documents to see if there
is a better or less expensive approach.
Task
17: Construction of Injection Facilities
Bid and construct the vadose and injection wells,
pipelines, monitoring equipment, electrical supplies, etc. necessary for the
facilities to operate.
Task 18: Start-Up of Injection Facilities
Perform capacity and function tests of the completed facilities and train
operational staff. Begin operation.
Task
19: Public Outreach and OCWD Tours
Prepare information packets, press conference, and editorials. Develop stakeholder list. Conduct opinion leader meetings. Address environmental justice issue. Meet with elected officials. Develop social media outreach. Update materials.
Task 20: Obtain CDPH Approval for Sharing Pipe
Develop the criteria acceptable to MRWPCA and CDPH for dual usage of the
transmission pipeline for recycled water and for purified (advance treated0
water during different times of year.
Task 21: Funding Plan
a)
Preliminary Funding Plan: Take the best estimate of capital and O&M
costs plus the schedule to develop a funding plan
b)
Intermediate Funding Plan: Update the plan based on updated capital and
O&M costs plus the revised schedule.
c)
Final Funding Plan: Complete an update based on the completed
designs and cost estimates and schedules.
Use plan to obtain financing for construction
Task 22: Continued Public Outreach Continuing
the process of Task 19
Task 23: Look for
Year-Around MF/RO Operation (a) Determine use for facilities during
summer months, 9b) continue the process
Task 24: Updates of Schedule, Budget, IAP, etc
After each segment of significant work it is important to re-estimate the costs
and schedule and to share that information with the Board and those involved
with the project. The IAP requires
regular updates and involvement in the major decisions.
Task 25: Negotiate Watermaster
Agreement This agreement would allow for water to be injected into the
Seaside Aquifer to be withdrawn from it later.
Task 26: Negotiate a Water Purchase Agreement It
is imperative to sell the water.
Task 27: Negotiate Sharing Pipeline with MCWD It
is desired to use the Regional Urban Water Augmentation Project (RUWAP)
pipeline and pump stations for this project.
Currently MCWD would be the owner of most of these facilities.
Task 28: Design and Construct Alternative Pipeline
Should Task 20 or Task 27 be unsuccessful, then it
will be necessary to design and build an alternate pipeline to transport water
to the Seaside Groundwater Basin.
Summary of
Estimated Costs
|
Pilot Studies
Design, Permitting, Legal, and Construction Management
Construction
Total Costs
|
$2.5 million
$9.0+ million
$40 to $60 million
$50 to $70 million
|
Timeline
See next page
Implementation Plan
Water Project 5
Increasing Capacity at Los Padres Dam
In this project, two
scenarios would be examined:
Dredging in
order to restore an original water right.
Original
Water Right (1948) 3,030 AF
Current
Right (reduced by Order 95-10) 2,179
AF
Restored
Right 851 AF
Estimated
Storage 1,775
AF
Sediment
Removal Required to Restore 1948 Right 1,255 AF
3,030
AF
Additional
water provided for stream flow: 404 AF (1,255 minus 851)
A seasonal rubber dam and
transfer a portion of Districts 20808 Water Right.
The
existing spillway is 18 feet below the dam height. It is contemplated that 5 to 10 feet of
height can be added during certain times of the year to increase storage
without inundating the Ventana Wilderness. This would provide 340 AF to 680 AF of new
capacity. It is recognized that spillway
modifications and widening may be required, as will enhanced fish passage.
Work Plan Tasks
Assumes
starting once Board approves a course of action. Timeline will
need to factor in approval dates, preparation of bids, and bidder response
time.
Task 1:
Dredging Feasibility Study
Budget: $200,000
Timeline: 6 months
Task 2:
Preliminary Design
A consulting engineer will be
hired to develop conceptual layout, sizing, and costs for a prospective rubber
dam, including any required alterations to the spillway, as well as fish
passageway redesign.
Budget: $50,000 - $100,000
Timeline: 2 months
Task 3: Dam
Feasibility Study
Geotechnical investigation of
the dam, spillway, and adjacent area to determine ability to accommodate rubber
dam; Seismic
stability review of dam, spillway, and adjacent embankment; and hydrology for
maximum flood and routing through reservoir.
Budget: $150,000 - $200,000
Timeline: 4 months
Task 4: Develop
Detailed Project Description
Consultant will identify and
carry out additional field studies that are needed to further refine the
project. Finalize the project
description for the EIR, including site layout, dewatering and disposal plan,
and new facilities to be constructed.
Cost estimates will be prepared.
Budget: $40,000 - $80,000
Timeline: 4 months
Task 5: Prepare
Environmental Impact Report
An Environmental Impact
Statement will be prepared to satisfy the CEQA process.
Budget: $250,000 - $500,000
Timeline: 12 months
Task 6: Detailed
Design and Construction Bid Documents
Assumed at
10% of construction.
Budget: $7,823,000
Timeline: 18 months
Task 7:
Permitting and Environmental
Budget: $250,000 - $300,000
Timeline: 20 months, overlaps with Detailed Design
Task 8: Construction
and Start-Up
Dredging:
1,255
acre-feet = 2,024,315 cubic yards.
Using
1996 Moffat study updated to current dollars:
$41,062,000 to $78,839,000
Using
USBR report for dredging and transport:
$24,292,000 to $60,730,000
Average
of all 4 figures: $51,230,000
Fish Passage
Improvements: $15,000,000
Rubber Dam and Spillway
Improvements: $12,000,000
Budget: $78,230,000
Timeline: 22 months
Summary of Estimated Costs (DRAFT)
|
Task 1: Dredging Feasibility Study
Task 2: Preliminary Design
Task 3: Dam Feasibility Study
Task 4: Develop Detailed Project Description
Task 5: Prepare Environmental Impact Report
Total Preconstruction Costs
|
$200,000
$50,000 - $100,000
$150,000 - $200,000
$40,000 - $80,000
$250,000 - $500,000
$690,000 - $1,080,000
|
|
|
|
|
Task 6: Detailed Design and Construction Bid
Documents
Task 7: Permitting and Environmental
Task 8: Construction and Start-Up
Total Construction Costs
|
$7,823,000
$250,000 - $300,000
$78,230,000
$86,303,000 - $86,353,000
|
Unit Cost
Annual cost of operation,
maintenance, and desiltation program: $900,000
Annualized capital cost (30
years; 5%) $5,673,500
Total Annual Cost $6,573,500
Cost per AF (assuming 851AF
from dredging and 680 AF from dam) $4,294
Dam and Fish Passage Only:
Annual cost of operation,
maintenance: $150,000
Annualized capital cost (30
years; 5%) $1,977,000
Total Annual Cost $2,127,000
Cost per AF (assuming 680 AF
from dam) $3,128
Dredging Only:
Annual cost of operation,
maintenance, and desiltation program: $750,000
Annualized capital cost (30
years; 5%) $3,712,000
Total Annual Cost $4,462,000
Cost per AF (assuming 851AF
from dredging) $5,243
Note: Capital costs for projects separated will add
up to slightly more than the combined project due to efficiencies when
combined.
Estimated Timeline
Timeline assumes start is
delayed to next fiscal year.
