Item H
BOARD OF COUNTY COMMISSIONERS
AGENDA ITEM SUMMARY
Meeting Date: 20 June 2002
Division:
Growth Management
Bulk Item: Yes
No X
Department
Marine Resources
AGENDA ITEM WORDING:
Approval of amendment to CH2MHill Contract to complete the Sanitary Wastewater Master Plan for Monroe
County.
ITEM BACKGROUND:
CH2MHill completed the Sanitary Wastewater Master Plan in June of 1999. They have remained under
contract to assist in some of the implementation efforts under the Plan. Specifically, they were retained to assist
in developing necessary documentation for using an EPA grant of approximately $3.8 million dollars to initiate
a centralized utility approach to manage decentralized wastewater systems.
With the Board's direction, CH2MHill will be updating elements of the Master Plan and developing an
implementation plan which reflects current funding realities. The County will also be asking CH2Mhill to
assist in on-going efforts with the Florida Keys Aqueduct Authority (FKAA) either in a transition or partnership
relationship with the County in the implementation of the Wastewater Master Plan.
PREVIOUS RELEVANT BOCC ACTION:
August 1997 - Approval of CH2MHill Contract to complete Sanitary Wastewater Master Plan
June 1999 - Acceptance and adoption of the completed Sanitary Wastewater Master Plan
CONTRACT/AGREEMENT CHANGES:
Amendment ofCH2MHill Contract for an additional amount of up to $100,000
STAFF RECOMMENDATIONS;
Approval
TOT AL COST:
Up to $100,000
BUDGETED: Yes
x
No
COST TO COUNTY:
No X AMOUNT Per Month
Year
DIVISION DIRECTOR APPROVAL:
Risk Management X.
APPROVED BY: County Atty X
DOCUMENTATION: Included _ To Follow l Not Requ' ed ---.:
DISPOSITION: AGENDA ITEM NO.:
..2-?
BC020610
06/03/02 II :29 AM
AGENDA ITEM WITH LATE DOCUMENTATION
DIVISION
DEPARTMENT
SUBJECT~J ~ flaut1~ -10 GJ2 YfuJ I
&-dtm u)l:tL ~~ {~
DATE ITEM WILL BE AVAILABLE t.J -10,- Ot-
AGENDA ITEM NUMBER
.JUN-20-02 08,06 FROM,MONROE COUNTY PURCHASING
ID,3052824515
PAGE
2/2
MONROE COUNTY BOARU OF COUNTY COMMISSIONERS
CONTRACT SUMMARY
Contract with: CH2MffiLL
Contract #
Effective Date:
Expiration Date:
Contract Purpose/Description:
Amendment to the contract between Monroe Count and CH2MHILL for the Sani
Wastewater Master Plan allowing for revision and updating of the plan..
Contract Manager: George Garrett
(Name)
2507
(Ext. )
Marine Resources/!I
(Department/Stop #)
for BOCC meeting on W
02-
Agenda Deadline:
vJ
CONTRACT COSTS
Total Dollar Value of Contract: $ d?i.~~lo3 Current Year Portion; $ /1f7J J tiJO .
Budgeted?Yes[gJ No 0 Account Codes: _-_-_---. I t1
Grant: $ None _-_-_-_-
CountyMatch:$ N/A ___-
ADDITIONAL COSTS
Estimated Ongoing Costs: $none/yr For:
(Not included in dollar value above) (eg. maintenance, utilities, janitorial, salaries, etc.)
CONTRACT REVIEW
Division Director
Changes
8it~~ Needed~
, YesD NO[J
Date Out
o .M.B.lPurchasing
o-f~-O}-YesDNocr ~' ~.
YesONoU!!< ~A./
to..,/t/"O:J YesD No~ .
.
o (2fJ tfL.
Risk Management
~r
G - 9-b lJ
County Attorney
Comments:
OMB I'-onn Revised 2/27/0 I MCP #2
BOARD OF COUNTY COMMISSIONERS
AGENDA ITEM SUMMARY
Meeting Date: 20 June 2002
Division:
Growth Management
Bulk Item: Yes
No X
Department
Marine Resources
AGENDA ITEM WORDING:
Approval of amendment to CH2MHill Contract to complete the Sanitary Wastewater Master Plan for Monroe
County.
ITEM BACKGROUND:
CH2MHill completed the Sanitary Wastewater Master Plan in June of 1999. They have remained under
contract to assist in some of the implementation efforts under the Plan. Specifically, they were retained to assist
in developing necessary documentation for using an EP A grant of approximately $3.8 million dollars to initiate
a centralized utility approach to manage decentralized wastewater systems.
With the Board's direction, CH2MHill will be updating elements of the Master Plan and developing an
implementation plan which reflects current funding realities. The County will also be asking CH2Mhill to
assist in on-going efforts with the Florida Keys Aqueduct Authority (FKAA) either in a transition or partnership
relationship with the County in the implementation of the Wastewater Master Plan.
PREVIOUS RELEVANT BOCC ACTION:
August 1997 - Approval of CH2MHill Contract to complete Sanitary Wastewater Master Plan
June 1999 - Acceptance and adoption of the completed Sanitary Wastewater Master Plan
CONTRACT/AGREEMENT CHANGES:
Amendment of CH2MHill Contract for an additional amount of up to $100,000
STAFF RECOMMENDATIONS;
Approval
TOTAL COST:
Up to $100,000
BUDGETED: Yes
X
No
COST TO COUNTY:
Up to $100,000
REVENUE PRODUCING: Yes
No X AMOUNT Per Month
Year
DIVISION DIRECTOR APPROVAL:
Risk Management ~
APPROVED BY: County Atty X
DOCUMENTATION: Included X To Follow
AGENDA ITEM NO.:
a.l~
DISPOSITION:
8C020610
06/03/02 11 :29 AM
Amendment 5
CONTRACT FOR THE MONROE COUNTY SANITARY WASTEWATER
MASTER PLAN
TIllS CONTRACT AMENDMENT is entered into between Monroe County,
whose address is Marathon Government Center, 2798 Overseas Highway, Suite
420, Marathon, Florida 33050, hereafter the County, and CH2MHill, Inc., a
Florida Corporation, whose address is 6410 Sh Street, Stock Island, Key West,
Florida 33040, hereafter the Consultant.
Section 1. This document amends the Contract and subsequent amendments
(Amendments 1 through 4) between the County and CH2MHill to provide
continuing services in the areas of Facility Siting, Service Area Analysis,
Master Plan Timing and Implementation, 0 & M/Utility Administration, Utility
Financing, and LegislativelRegulatory issues; originally Tasks XI through XVI.
This Contract will allow the County to revise and update the Sanitary
Wastewater Master Plan (SWMP) based on recent policy adjustments and
current financial realities.
A. Other aspects of the data collection and development components of
the Sanitary Wastewater Master Plan may also be updated and/or revised as
well.
B. The request for revisions and updates to the Master Plan will be given
at the direction of the Board of County Commissioners, the County
Administrator, or the Director of Growth Management, pursuant to the
Purchasing Policies and Procedures of Monroe County.
Section 2. This Contract will be executed through work orders, described as
Task XXIII. Requests to complete work orders under this Contract will be
made based on the current direction and policies of the BOCC concerning the
improvement of wastewater management in the unincorporated area of the
Florida Keys.
A. The County Administrator or his designee will request work to be
completed under this Contract, or work will be requested at the direction of
the BOCC through the County Administrator.
B. Requests by the County to complete work orders under this Contract
will be made in writing to the Consultant, who will then provide a written
assessment of the cost to complete the work order requested.
SWMP9I O.doc
06106102 8:29 AM
C. If the County and Consultant agree in writing upon the scope of work
required and the cost, the Consultant will agree to complete the work order
in a timely fashion.
D. Upon completion of the work order, the Consultant will provide the
County with the work product and an invoice for the work completed.
E. Upon acceptance of a work order product and approval of the work
product as adequate and complete, the County will process invoices and
provide payment within thirty (30) days.
Section 3 . Work Order Items. The Consultant will be asked to provide
assistance to the County on the following list of items.
A. Provide independent assessment of Key West Resort Utilities
(KWRU) proposals for utility expansion on stock island and potentially Big
Coppitt.
Reevaluate information developed in the SWMP as related to the Big
Coppitt area and the recommendations made for the proposed Big Coppitt
.
servIce area.
Provide assistance on a proposal for the use of Environmental
Protection Agency (EP A) funds for a decentralized wastewater system
utility .
Assist the County in developing a revised wastewater program
implementation plan, based on current policy direction and funding realities.
Assist the County in developing utility options, should the Florida
Keys Aqueduct Authority (FKAA) discontinue its efforts in the wastewater
field on behalf of the County.
Other work order items may be added to this list based on an
assessment of changing needs by the BOCC, the County Administrator, or
the Director of Growth Management.
B.
C.
D.
E.
F.
Section 4. Remaining funds from work to be completed in Task XXII, Tech
Memo No. 18A - Development Assistance - NOWTDDP Grant and Tech
Memo No. 18B - RestorationlMaintenance - OWNRS Test Site, shall be shifted
for use in Task XXIII, $14,183.00
Section 5. In no case may the cumulative total of work orders requested under
this Contract, Task XXIII, exceed $100,000 as provided in revised Appendix B
to the Contract (attached), without further amendment of the Contract by the
BOCC.
Section 6. This Contract Amendment takes effect on the date of the signature of
the last party to sign.
SWMP9IO.doc
06/06102 8:29 AM
2
IN WI1NESS WHEREOF each party hereto has caused this Agreement to be
executed by its duly authorized representative.
(SEAL)
Attest: DANNY L. KOLHAGE, CLERK
BOARD OF COUNTY COMMISSIONERS
OF MONROE COUNTY, FLORIDA
By
Deputy Clerk
By
Mayor/Chairman
(SEAL)
Attest:
CH2MHILL, INC.
By
Title
By
Title
SWMP910.doc
06106102 8:29 AM
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County of Monroe
Growth Mana~ernent Division
2798 Overseas Highway
Suite 410
Marathon, Florida 33050
Voice: (305) 289 2500
FAX: (305) 289 2536
Board of County Commissioners
Mayor Charles "Sonny" McCoy, Dist. 3
Mayor Pro Tern Dixie M. Spehar, Dist. 1
Comm. Bert Jimenez, District 4
Comm. Murray Nelson, District 5
Comm. George Neugent, District 2
MEMORANDUM
TO:
Board of County Commissioners
DATE:
Timothy J. McGarry, AICP /J1/J
Director of Growth Manag~V I
June 18,2002
FROM:
SUBJECT:
CH2MHILL Report on Conch KeylHawk's Cay Wastewater
Management Options (Second Day Agenda Item: H)
Overview
As requested by the BOCC, attached is the report prepared by Ken Williams of the engineering
consulting firm of CH2MHILL that examines the two wastewater options for the Conch Key
service area: (1) construction of a wastewater collection system with a stand alone best available
technology (BAT) wastewater treatment plant located in Conch Key; or (2) construction of a
wastewater collection system for Conch Key with a transmission line taking effluent to be treated
at the Hawk's Cay wastewater treatment plant and the upgrading of this facility from secondary
level of treatment to advanced wastewater treatment (A WT) in the future.
Summary of Findings
Service Conch Key Service Area/ED Us: The proposed service area is Conch Key with
approximately 157 equivalent dwelling units (EDUs) to be tied into the collection system. The
Hawk's Cay facility presently serves approximately 480 EDUs.
Project Description- Stand-Alone Alternative: Wastewater collection will be by a vacuum system.
The collected effluent will be treated at a 0.030 million gallons per day, BAT wastewater treatment
facility located in Conch key.
Project Description-Combined System Alternative: Wastewater collection will by a vacuum
system. A pump/vacuum station will be constructed on Conch Key and connected via transmission
line to a liftstation at Hawk's Cay. Wastewater will be treated at the Hawk's Cay wastewater
treatment facility which treats at a secondary level of treatment and has a treatment capacity of
.196 million gallons per day. The Hawk's Cay facility will not have to be expanded to accept the
additional effluent (estimated 24,000 gallons per day); however, it will have to be upgraded to
A WT prior to 2010. This report assumes the upgrade will take place in 2009.
Comparison of Costs (Projected January 2003 dollars):
Stand Alone Alternative
Connection to Hawk's Cay
Total Project Costs
Connection Fees (per EDU)
Monthly User Charge (per EDU)
$ 2,689,00
5,000
79
$ 2,794,000
5,000
64
The comparison shows that the connection to Hawk's Cay is a less expensive alternative based on
project costs and monthly user fees; however, the report also indicated that the monthly user costs
for Conch Key under the second alternative will increase to approximately $4.00/EDU/month less
than the stand alone alternative in order to pay for the upgrade of the Hawk's Cay facility to A WT
and for the increased operating costs of the plant at the higher treatment level. [This analysis
assumes that no further contributions are made from public sources to reduce costs of the upgrade
that must be finance through an increase in monthly charges.]
Present Worth Evaluation: To better evaluate the two alternatives, a present worth analysis was
conducted that compares the costs of each facility over the lifecycle of the capital improvement.
This analysis showed that the second alternative (Connection to Hawk's Cay) was more cost
effective than the stand alone alternative.
Recommendations
Approval of the report; approval for FK.AA to pursue the option to connect Conch Key wastewater
collection system to the Hawk's Cay wastewater treatment plant; and approval of the proposed
option agreement to transfer the Hawk's Cay facility to the County/FK.AA.
Attachment
cc: Mr. Danny Kolhage, Clerk of the Court
Mr. James L. Roberts, County Administrator
Mr. James Hendrick, County Attorney
Report on
Conch Key Community
Wastewater System
Submitted to:
Monroe County
Board of County Commissioners
June 18, 2001
CH2M HILL
6410 5th Street
Suite 2A
.
.~
CH2MHILL
Key West, FL 33040-5835
Tel 305.294.1645
Fax 305.294.4913
June 18, 2002
Monroe County Board of County Commissioners
1100 Simonton Street
Key West, FL 33040
Dear Commissioners:
Subject: Conch Key Community Wastewater System
Introduction
CH2M HILL has been asked to independently evaluate recently developed capital,
operation and maintenance (O&M), renewal and replacement (R&R), and administrative
costs for sufficiency. CH2M HILL has also been asked to evaluate the cost-effectiveness and
practicality of two alternatives to provide a community wastewater system for Conch Key.
The two alternatives are:
. A stand-alone facility on Conch Key, consisting of a wastewater collection and
treatment system to serve Conch Key.
. Combine the new Conch Key wastewater collection system with the existing Hawk's
Cay wastewater system. In this alternative, a collection system and a transmission
system would be constructed to serve Conch Key, and the wastewater would be
transmitted to the Hawk's Cay secondary WWTP for treatment.
FEMA unmet needs grant funds that are available for this project are proposed to partially
finance the construction of one of these alternatives. Current grant funding is as follows:
FEMA Federal Grant Funds
State Match Grant Funds
$ 1,398,215
$ 233,035
$ 1,631,250
$ 233,035
$ 1,864,285
Total Grant Funds
Local Match Funds
Total
Cost Estimates
To implement this wastewater project beyond the master planning phase, detailed cost data
and evaluations have been developed recently by the Florida Keys Aqueduct Authority
(FKAA) and by Hawk's Cay Investors, Ltd., (HCI).
These recent cost data were developed in the period December 2001 to February 2002, and
are considered to represent January 2002 dollars (ENRl = 6,462). Cost data developed
during the preparation of the Master Plan (September 1998 dollars, ENRl = 5,963) will be
used to substantiate these recently developed cost data, or to supplement these data, where
necessary. This analysis will use costs, both capital and O&M, projected to January 2003
1 Engineering News Record Construction Cost Index
Momoe County Board of County Commissioners
Page 2
June 18, 2002
dollars (ENRl = 6,624) by escalating January 2002 costs at the same rate of inflation that
occurred from September 1998 to January 2002 (approximately 2.5% per year).
Cost estimates presented herein are order-of-magnitude estimates, as defined by the
American Association of Cost Engineers. These estimates are believed to be accurate within
the range of 30 percent below to 50 percent above actual costs. Actual costs for any given
system would depend on multiple factors, including, but not limited to, actual labor and
material costs, market conditions, project scope, and implementation schedule.
Analysis
In this analysis, the following must be considered.
. Confirmation of projected Conch Key wastewater flows and EDUs.
. Adequacy of capital costs, annual O&M costs, R&R costs, and administrative costs for
the collection, transmission, and treatment systems for the two alternatives evaluated.
. Capacity of the Hawk's Cay facility to accept Conch Key wastewater.
. Costs to operate and maintain the existing Hawk's Cay facility.
. Cost impacts to existing Hawk's Cay customers.
. Future cost impacts to Conch Key and Hawk's Cay customers (and potentially Duck
Key customers) to upgrade the existing Hawk's Cay secondary facility to an AWT
facility.
The above items are discussed in detail in Appendix A and the cost values determined to be
most appropriate for this analysis are summarized in Exhibit 1. Cost and financing data
were obtained from the sources that are summarized in Appendix B. Pertinent excerpts
from these sources are provided herein as attachments.
EXHIBIT 1
Project Capital and Operating Costs and Other Data used in the Analysis of Conch Key
Wastewater Alternatives
Conch Key Stand-
Alone BAT WWTP
and Collection
System
EDUs Served by Treatment Facility 157
Average Annual Daily Design Flow from
Conch Key 24,000 gpd
Conch Key Vacuum Collection System
Construction Cost $ 1,536,000 $
Transmission System from Conch Key to
Hawk's Cay Construction Cost $ $
Conch Key SAT WWTP Construction Cost $ 500,000 $
Conch Key Vacuum Collection System Annual
O&M / R&R $ 32,600 $
Conch Key
Combined with
Hawk's Cay System
683
24,000 gpd
1,536,000
594,000
32,600
Monroe County Board of County Commissioners
Page 3
June 18, 2002
EXHIBIT 1
Project Capital and Operating Costs and Other Data used in the Analysis of Conch Key
Wastewater Alternatives
Transmission System Annual O&M I R&R
(1)
Conch Key Stand-
Alone BAT WWTP Conch Key
and Collection Combined with
System Hawk's Cay System
$ $
$ 62,000 $
$ 2,600 $
$ 16,500 $
Conch Key BAT WWTP Annual O&M I R&R
Conch Key Customer Billings
Conch Key General Utility Administrative Costs
Hawk's Cay Secondary Facility
Hawk's Cay Secondary WWTP Annual
O&M/R&R, Conch Key Component
$
$
$
34,000
Customer Billings, Conch Key Component
$
2,600
General Utility Administrative Costs, Conch Key
Component
$
$
6,400
Hawk's Cay AWl Facility
Cost to Expand and Upgrade Hawk's Cay
WWTP to 0.30 mgd AWT,
Conch Key component
$
$
96,000
Hawk's Cay AWT WWTP Annual O&M/R&R,
Conch Key Component
$
$
44,000
Customer Billings, Conch Key Component
$
$
$
2,600
General Utility Administrative Costs, Conch Key
Component
(1) Included as part of collection system cost.
$
8,000
The above estimates are those that CH2M HILL has determined are appropriate and good
engineering cost estimates for this evaluation of the two Conch Key wastewater system
alternatives.
This evaluation assumes that the designs for the facilities would be completed during the
remainder of this year 2002, bids would be received in January 2003, and construction
would start immediately thereafter, with startup of the systems and wastewater service to
customers beginning in January 2004.
Exhibits 2 and 3 summarize the capital and operating costs for the two alternatives
evaluated. These costs are shown for the base period, January 2002, and for the years in
which it is anticipated these costs will occur, projected either as a one time construction cost
or as a recurring annual cost.
Momoe County Board of County Commissioners
Page 4
June 18, 2002
EXHIBIT 2
Estimated Capital and Annual O&M/R&R and Administrative Costs for a Conch Key Stand-Alone BAT WWTP and
Vacuum Collection System
Construction & Other Project
Costs
WWTP (BAT)
Collection System (Vacuum)
Land
Engineering, Legal &
Administrative
Finance Charges (1)
Total Project Costs
Annual O&M/R&R and
Administrative Costs
WWTP O&M / R&R (BAT)
Collection (Vacuum) System
Customer Service Billings
General Utility Costs
Coverage Requirement (2)
Total Annual O&M/R&R and
Administrative Costs $ 119,700 $ 125,200
(1 )Includes both bond issuance costs and bond reserve; estimated at 11 % of financed amount.
(2)Estimated at 25% of annual debt service.
January 2002 Costs
$ 500,000
$ 1,536,000
$ 50,000
Projected Costs
January 2003 January 2004
$ 510,000
$ 1,575,000
$ 51,000
$
$
$
510,000
29,000
2,625,000
$
$
$
523,000
30,000
2,689,000
$
$
$
$
62,000
32,600
2,600
16,500
6,000
$
$
$
$
65,000
34,200
2,700
17,000
6,300
EXHIBIT 3
Estimated Capital and Annual O&M/R&R and Administrative Costs for Conch Key Combined with Hawk's Cay
System
Construction & Other Project January 2002 Projected Costs
Costs Costs January 2003 January 2004
WWTP Capacity Charge $ -0- $ -0- -0.
Collection System (Vacuum) $ 1,536,000 $ 1,575,000
Land $ 25,000 $ 26,000
Transmission System $ 594,000 $ 609,000
Engineering, Legal & Administrative $ 530,000 $ 543,000
Finance Charges (1) $ 40,000 $ 41,000
Total Project Costs $ 2,725,000 $ 2,794,000
Annual O&M/R&R and
Administrative Costs
WWTP O&M I R&R, Conch Key
Component $ 34,000 $ 35,700
Collection System O&M I R&R $ 32,600 $ 34,200
Transmission System O&M I R&R $ (2) $ (2)
Customer Service Billings $ 2,600 $ 2,700
General Utility Costs $ 6,400 $ 6,700
Coverage Requirement (3) 8,200 8,600
Total Annual O&M/R&R and
Administrative Costs $ 83,800 $ 87,900
(1) Includes both bond issuance costs and bond reserve; estimated at 11 % of financed amount.
(2) Included as part of collection system cost.
(3) Estimated at 25% of annual debt service.
Monroe County Board of County Commissioners
Page 5
June 18, 2002
Exhibits 4 and 5 summarize projected costs and revenues and connection fees and monthly
user charges for the two alternatives when the systems are projected to first come on line
and serve customers in January 2004. For each alternative the connection fee is projected to
be $5,OOOjEDU. The Conch Key Stand-Alone alternative is projected to have a monthly user
charge of $79 jEDU, while the Conch Key Combined with Hawk's Cay alternative is
projected to have a monthly user charge of $64jEDU, or $15jEDUjMo less than the Stand-
Alone alternative.
EXHIBIT 4
Costs, Revenue Sources and Projected Rates, Fees and Charges for Conch Key Stand-
Alone BAT WWTP and Vacuum Collection System
Revenues
Total Project Costs(1)
FEMA and State Grant Funds
Balance After Grants
Connection Fees (157EDUs @ $5,000/EDU)
Balance to be Funded from Monthly User Charge
$2,689,000
$1,631,250
$1,057,750
$785,000
$272,750
Monthly User Charge
Debt Service on Capital Balance (6%, 20 yrs)
Annual O&M and Administrative Costs(1)
Total Wastewater System Annual Cost
Total Wastewater System EDUs
Monthly User Charge
1 From Exhibit 2
$23,800
$125,200
$149,000
157
$79/EDU/Mo
EXHIBIT 5
Costs, Revenue Sources and Projected Rates, Fees and Charges for Conch Key
Combined with Hawk's Cay System
Revenues
Total Project Costs(1)
FEMA and State Grant Funds
Balance After Grants
Connection Fees (157EDUs @ $5,000/EDU)
Balance to be Funded from Monthly User Charge
$2,794,000
$1,631,250
$1,162,750
$785,000
$377,750
Monthly User Charge
Debt Service on Capital Balance (6%, 20 yrs)
Annual O&M and Administrative Costs(1)
Total Wastewater System Annual Cost
Total Wastewater System EDUs
Monthly User Charge
1 From Exhibit 3
$32,900
$87,900
$120,800
157
$64/EDU/Mo
Monroe County Board of County Commissioners
Page 6
June 18, 2002
The Conch Key Stand Alone alternative would have a treatment facility that would be
providing advanced wastewater treatment (BAT) from the very beginning and would
require no further upgrades under the current regulations. On the other hand, the Conch
Key Combined alternative would have a facility that is providing secondary treatment, and
would require future costs to upgrade to an A WT facility. For this analysis, it is assumed
that the Hawk's Cay facility would be upgraded to an A WT facility in 2009 and would
begin providing A WT treatment in 2010. The Conch Key component of this A WT upgrade
is estimated to be $96,000 (January 2002 dollars), which is equivalent to an additional
monthly charge of $4.44jEDD. There would also be an incremental increase in operating
cost for A WT treatment. The Conch Key component is estimated to be $11,600 (January 2002
dollars), which is equivalent to an additional monthly charge of $6.16jEDD. Thus, the total
increase projected for this A WT upgrade for Conch Key is $10.60jEDU jMo in January 2002
dollars, or $11.14jEDUjMo in January 2004 dollars. This combined alternative is therefore
approximately $4.00jEDUjMo less than the Stand-Alone alternative.
To assist in the evaluation of the two alternatives, a present worth analysis was performed;
the results are presented in Exhibits 6 and 7. This analysis assumes an annual inflation rate
of 2.5% and a discount rate of 6.0%. The analysis shows that the present value of the
projected expenditures for the stand alone system is $4,380,009, while the present value of
the costs for the system in which Conch Key is combined with the Hawk's Cay System is
$4,094,573. Based on the results of this analysis, combining the Conch Key collection system
with the Hawk's Cay System would be a more cost-effective solution to providing
wastewater service to Conch Key.
EXHIBIT 6
Monroe County
Conch Key Wastewater System
Conch Key Stand Alone SAT WWTP and Collection System
Present Worth Analysis
Capital
Outlay
$2,659,000
Year
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
Operating
Cost
$124,700
$127,800
$131,000
$134,300
$137,700
$141 ,100
$144,600
$148,200
$151,900
$155,700
$159,600
$163,600
$167,700
$171,900
$176,200
$180,600
$185,100
Present Worth
Factor
1.000
0.940
0.884
0.831
0.781
0.734
0.690
0.648
0.610
0.573
0.539
0.506
0.476
0.447
0.421
0.395
0.372
0.349
Present Worth
Cost
$2,659,000
$117,218
$112,924
$108,807
$104,855
$101,059
$97,341
$93,770
$90,338
$87,038
$83,862
$80,805
$77,861
$75,023
$72,288
$69,650
$67,106
$64,652
Monroe County Board of County Commissioners
Page 7
June 18, 2002
EXHIBIT 6
Monroe County
Conch Key Wastewater System
Conch Key Stand Alone SAT WWTP and Collection System
Present Worth Analysis
Capital
Outlay
Year
2021
2022
2023
Salvage
Net Present Worth
Inflation
Discount Rate
Operating
Cost
$189,700
$194,400
$199,300
2.5%
6.0%
Present Worth
Factor
0.328
0.309
0.290
0.273
Present Worth
Cost
$62,283
$59,996
$57,818
$0
$4,380,009
EXHIBIT 7
Monroe County
Conch Key Wastewater System
Conch Key Combined With Hawk's Cay System
Hawk's Cay Expansion & AWT in 2009
Present Worth Analysis
Capital
Outlay
$2,753,000
Year
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
Salvage
Net Present Worth
Inflation
Discount Rate
$102,200
Operating
Cost
$81,500
$83,500
$85,600
$87,700
$89,900
$92,100
$106,700
$109,400
$112,100
$114,900
$117,800
$120,700
$123,700
$126,800
$130,000
$133,300
$136,600
$140,000
$143,500
$147,100
2.5%
6.0%
Present Worth
Factor
1.000
0.940
0.884
0.831
0.781
0.734
0.690
0.648
0.610
0.573
0.539
0.506
0.476
0.447
0.421
0.395
0.372
0.349
0.328
0.309
0.290
0.273
Present Worth
Cost
$2,753,000
$76,610
$73,781
$71,098
$68,4 72
$65,978
$134,042
$69,193
$66,687
$64,233
$61,887
$59,642
$57,444
$55,339
$53,322
$51,388
$49,531
$47,712
$45,965
$44,287
$42,675
$0
$4,094,573
Monroe County Board of County Commissioners
Page 8
June 18, 2002
The evaluations performed for this report indicate that the most cost-effective alternative is
to combine the new Conch Key wastewater collection system with the existing Hawk's Cay
wastewater system. CH2M HILL, therefore, recommends the combined system alternative
for the following reasons:
. The analyses performed herein show this to be the most cost-effective alternative.
. This alternative takes advantage of the economy of scale for operation of the utility, and
provides the opportunity to distribute the relatively fixed costs over 683 EDUs, rather
than 157 EDUs. For example, when the Hawk's WWTP is upgraded to AWT, the Conch
Key component of O&MjR&R for the combined alternative is $44,000 (January 2002),
whereas, the cost of O&MjR&R for the stand alone alternative is $62,000 (January 2002),
a savings of $18,000 for the combined alternative. Also, the Conch Key share of the
general utility administrative cost is $8,000 (January 2002), whereas, the general utility
administrative cost for the stand-alone Conch Key utility is $16,500, a savings of 50
percent for the combined alternative.
Sincerely,
CH2M HILL
~F~
Kenneth F. Williams, P.E.
Attachments
DFB31003696147.docj 021680020
ApPENDIX A
Evaluation of Project Capital and Operating
Costs for Conch Key Wastewater System
Alternatives
Conch Key Wastewater Flows and EDUs
As shown in Exhibit A-1, the various sources are consistent in projecting Conch Key
Wastewater flows and EDUs. For this analysis, an average day wastewater flow of
approximately 24,000 gpd and 157 EDUs will be used.
EXHIBIT A.1
Projected Conch Key Wastewater Flow and EDUs by Various Sources
Reference Wastewater
Source No Attachment Flow (gpd) EDUs
Boyle 3 A 23,550 157
FKAA 6 B 18,962 163
Weiler 5 C 153
Capital and Annual O&M and Administrative Costs
Collection System: Both the FKAA (through Boyle Engineering Corporation) and the
Weiler Engineering Corporation (through AIRV AC) have developed capital costs for the
proposed vacuum collection system, as shown in Attachments D and E. The AIRV AC
estimate specifically notes that their estimate does not include site specific items such as
surface restoration, road bores, etc. and that the pipe unit prices, which are also very site
specific, are educated guesses and may have to be adjusted for the specific job conditions.
As shown in Attachment E, when the pipe unit prices are adjusted to those used in the
Master Plan (the Master Plan vacuum pipe unit prices compare well to bid results for the
Little Venice project for the second low and third low bidders), and adjusted to the same
time frame of the estimate and costs for noted items left out are included, the collection
system costs are similar, $1,370,000 Boyle versus $1,100,000 AIRV AC. The unit pipe prices
used by Boyle appear to be high. If these are reduced to what we feel are more likely, the
Boyle price is reduced by about $100,000. Nonetheless, the Boyle vacuum collection
system cost estimate of $1,536,000 (which includes roadway surface restoration) will be
used for this analysis. These collection system cost estimates do not include the cost of
private property building sewers, estimated to cost $1,250 each, nor the cost of onsite
system decommissioning, estimated to cost $500 each.
Both FKAA (Attachment G) and AIRV AC (Attachment E) have provided annual O&M and
R&R cost estimates for the Conch key vacuum collection system. When the AIRV AC
estimate is adjusted for Keys labor and power costs, the adjusted annual AIRV AC cost is
DFB31003696147CONCH.DOC/021680020
A-1
$24,000. As shown in Attachment G, the FKAA estimate of collection system O&MjR&R is
about $32,600. This estimate of $32,600 (January 2002) for annual vacuum collection
system O&MjR&R is comparable to Master Plan estimates for collection systems of similar
size and will be used in this analysis.
Transmission System: The Boyle transmission system cost estimate of $594,000 is
consistent with costs for other comparable systems and will be used in this analysis.
Conch Key WWfP: The Boyle construction cost estimate of $360,000 for a Conch key BAT
WWTP (Attachment F) appears to be low. Based on Master Plan WWTP cost estimates and
the Little Venice bid results, it appears that a cost of $500,000 (January 2002 dollars) is more
appropriate and will be used in this analysis.
The FKAA provided an annual O&MjR&R estimate of approximately $62,000 for the
Conch Key stand-alone WWTP (Attachment G). This estimate of $62,000 compares well
with the $69,000 annual O&MjR&R estimate developed for Conch Key in the Master Plan
for comparable services, and will be used in this analysis.
FKAA has also provided estimated utility administrative costs for customer billing and for
general utility administrative costs, which are required by any operating utility. As shown
in Attachment G, the customer billings cost is $2,600 and the total for general utility
administrative costs is approximately $16,500 for the Conch Key facility. These are
reasonable costs and will be used in this analysis.
Also, the guidelines offered by FKAA for these billing and general utility administrative
costs are reasonable, and will be used in this analysis to estimate utility administrative costs
for the combined Conch Key j Hawks's Cay alternative.
Capacity of Hawk's Cay WWTP to Accept Conch Key Wastewater
An abbreviated capacity analysis report by The Weiler Engineering Corporation confirms
that the Hawk's Cay treatment facility has adequate capacity to accept the projected Conch
Key wastewater flows (Attachment H); Mr. Weiler notes that FDEP has concurred with this
assessment.
Annual O&M Costs for the Existing Hawk's Cay WWTP
Annual O&M costs must be determined so that the treatment component for Conch Key
wastewater can be charged against Conch Key customers. Synagro2 has advised that total
operation and maintenance costs for the Hawk's facility for calendar year 2001 totaled
$108,000, exclusive of utilities (electric and water). CH2M HILL estimates that utility costs
for the 200,000 gpd Hawk's Cay plant would be approximately $23,000, giving a total
estimated O&M cost of $131,000 for calendar year 2001. Including a renewal and
replacement (R&R) amount of $7,000 will bring the total annual O&MjR&R cost to
$138,000. Adjusting this cost to January 2002 dollars gives an annual O&M cost of $141,000.
This $141,000 compares reasonably well with an estimate of $124,000 developed by CH2M
HILL from Master Plan data and will be used in this analysis. A January 2002 value of
$141,000 will be used for the Hawk's Cay facility without Conch Key flows.
2 Verbal communication from Ed Castle, Synagro, June 6, 2002
DFB31 00369614 7CONCH.DOc/021680020
A-2
Based on the 526 EDUs connected to the Hawk's Cay system, this amounts to a monthly
O&M cost of $22.34jEDD.
Annual utility administrative costs for the Hawk's facility (January 2002 dollars), assuming
this facility would be operated as a public utility, are estimated as follows:
Customer billing, 350 accounts @ $40/Actlyr
General utility administrative costs (legal, finance, auditing,
purchasing, information systems, contract management,
administration, and contingency of 5%) 17% of O&M/R&R
and customer billing.
Annual O&M/R&R costs
Total annual utility operating costs
$14,000
$26,000
$141,000
$181,000
The $26,000 of annual utility administrative costs is equivalent to a unit cost of
$4.12jEDUjMo. The total annual utility operating cost of $181,000 is equivalent to
$28.68jEOUjMo.
Cost Impacts to Existing Hawk's Cay Wastewater Customers
Given the fact that capacity exists in the Hawk's Cay plant to accommodate Conch Key
wastewater flows, annual operating costs should increase only slightly when Conch Key
wastewater enters the system, so impacts to existing Hawk's Cay customers will be
nonexistent, and in fact the cost per EOU should reduce slightly. The increase will be
principally for additional electric and solids handling costs and will amount to about $7,000
annually, for a total annual O&MjR&R cost of $148,000 (January 2002 dollars) for 683 EOUs
(526 Hawk's Cay and 157 Conch Key). This equals a monthly O&M cost of $18.06jEOD.
The Conch Key component of this annual cost (January 2002) is $34,000.
Annual customer billing and general utility administrative costs for the Hawk's facility, if it
were to receive Conch Key wastewater, and assuming this facility would be operated as a
public utility, are estimated as follows:
Customer billing, 415 accounts @ $40/Actlyr
General utility administrative costs (legal, finance, auditing,
purchasing, information systems, contract management,
administration, and contingency of 5%) 17% of O&M/R&R
and customer billing.
Annual O&M/R&R costs
Total annual utility operating costs
$16,600
$28,000
$148,000
$192,600
The Conch Key component of the customer billing costs are $2,600 (January 2002).
The $28,000 of annual utility administrative costs are equivalent to a unit cost of
$3.42jEOU jMo. The Conch Key component of this annual utility administrative cost is
$6,400 (January 2002).
DFB31003696147CONCH.ooc/021680020
A-3
Cost to Upgrade Hawk's Cay WWTP to AWl
The cost to upgrade the Hawk's Cay secondary facility is important for the combined
alternative because Conch Key would have to pay their share of upgrading the facility to
A WT. This analysis assumes that the Hawk's Cay facility would be expanded and
upgraded to a 0.30 mgd A WT facility during calendar year 2009 and would become
operational in January 2010 (Florida Statute requires upgrade to be complete by July 2010).
This analysis also assumes that Duck Key would opt to provide a central sewer system and
have their wastewater treated at the Hawk's Cay facility. (The Master Plan determined that
this alternative to provide central sewers and connect to the Hawk's Cay facility was more
cost-effective than for Duck Key to upgrade their existing onsite systems to nutrient
removal BAT systems by 2010). Thus, this facility would serve a total of 1,038 EDUs from
Hawk's Cay (526 EDUs), Conch Key (157 EDUs) and Duck Key (355 EDUs) (Attachment C).
The expansion and upgrading of this facility to a 0.30 mgd A WT facility consists of:
· Upgrading the existing 0.196 mgd facility that serves both Conch Key and Hawk's Cay
to an AWT facility.
· Providing a new 0.10 mgd A WT segment that serves Duck Key only.
· Duck Key would pay 100 percent of the cost for the new A WT segment, while Conch
Key and Hawk's Cay would only pay for the cost to upgrade the existing 0.196 mgd
facility from secondary to A WT.
Even if Duck Key chose not to connect to the Hawk's Cay facility and, thus, the expansion
of the Hawk's Cay facility to 0.30 mgd was not necessary, the Conch Key component to
upgrade the Hawk's Cay facility would not change, as Conch Key and Hawk's Cay are only
paying for the 0.196 mgd upgrade to AWT.
However, if Duck Key chose not to connect to the Hawk's Cay system, the annual operating
costs would increase slightly for Conch Key and Hawk's Cay as a result of fewer EDUs over
which to distribute relatively fixed annual costs-683 EDUs without Duck Key versus 1,038
ED Us with Duck Key.
The Weiler Engineering Corporation has provided a recent estimate from the Macke
Company (a wastewater treatment plant designer/manufacturer/builder who has
constructed at least some of the Hawk's Cay wastewater facilities) (Attachment I) to expand
and upgrade the existing 0.196 mgd secondary Hawk's facility to a 0.350 mgd AWT facility
for a cost of $750,000. This construction cost estimate is substantially less than an estimate of
$1,400,000 (January 2002) developed by CH2M HILL from Master Plan data. For this
analysis, a construction cost estimate of $1,400,000 (January 2002) to expand and upgrade
the Hawk's Cay plant to a 0.30 mgd AWT will be used ($1,100,000 for the new 0.10 mgd
A WT Duck Key segment and $300,000 for upgrading the existing 0.196 mgd facility to
AWT). The Duck Key 355 EDUs would be responsible for all the costs for the new 0.10 mgd
AWT segment, while the Conch Key 157 EDUs and the Hawk's Cay 526 ED Us would share
the cost of upgrading the existing 0.196 mgd facility to A WT. The Conch Key component of
this upgrade construction cost is $96,000 (January 2002).
The Weiler Engineering Corporation has also provided an estimate of $264,000 from
Synogro (Attachment J) to operate and maintain the Hawk's Cay AWT facility after it has
been expanded to 0.35 mgd. This estimate is about 10 percent less than an estimate of
DFB31 00369614 7CONCH.DOC1021680020
A-4
$290,000 (January 2002) developed by CH2M HILL from Master Plan data to operate and
maintain a 0.30 mgd facility. The Synagro costs, however, are for operation and
maintenance only, and do not include annual renewal and replacement costs. Hence, for
purposes of this analysis an estimate of $290,000 (January 20020 for annual O&M/R&R for a
0.30 mgd A WT facility will be used. The Conch Key component of this annual cost is
$44,000 (January 2002).
Annual customer billing costs and utility administrative costs for the Hawk's A WT facility,
if it were to receive Conch Key and Duck Key wastewater, and assuming this facility would
be operated as a public utility, are estimated as follows:
Customer service billing 765 accounts @ $40/act/yr General
utility administrative costs (legal, finance, auditing,
purchasing, information systems, contract management,
administration, and contingency of 5%).
17% of O&M/R&R and customer billing.
Annual O&M/R&R costs
$30,600
Total annual utility operating costs
$54,500
$290,000
$375,100
The Conch Key component of the customer billing costs are $2,600 (January 2002).
The $54,500 of annual utility administrative costs are equivalent to a unit cost of
$4.38/ EDU / Month. The Conch Key component of this annual utility administrative cost
is about $8,000 (January 2002).
DFB31003696147CoNCH.DOC/021680020
A-5
APPENDIX B
Summary of Data Sources
1. Wastewater Facilities Plan with Phased Implementation for the Marathon Area of
the Florida Keys, June 1998, prepared for Monroe County by CH2M HILL
2. Monroe County Sanitary Wastewater Master Plan, and Appendices, January 2000,
prepared for Monroe County by CH2M HILL
3. Florida Keys Aqueduct Authority Conch Key Wastewater System, Preliminary
Design Report, January 2002, by Boyle Engineering Corporation
4. January 24, 2002, AIRV AC letter regarding vacuum sewer system for Conch Key,
submitted to Jeff Weiler, the Weiler Engineering Corporation
5. January 24, 2002 EDU Estimate Table, provided by The Weiler Engineering
Corporation
6. Conch Key flow Data, undated, by FKAA
7. February 1, 2002, Synagro letter regarding estimated annual operation and
maintenance costs of an expanded Hawk's Cay A WT facility to 0.350 mgd, provided
by The Weiler Engineering Corporation
8. February 22, 2002, letter to The Honorable Ken Sorensen, State Representative,
District 120, by The Weiler Engineering Corporation
9. February 6, 2002 letter from Mack Concrete to the Weiler Engineering Corporation
10. Final Report. Evaluation of Nitrogen and Phosphorus Removal Technologies for
Small Wastewater Treabnent Plants (Capacity of 2,000 to 100.000 Gallons/Day,
October 1998, prepared for Monroe County and FDEP by CH2M HILL
DFB31003696147CoNCH.DOC/021620012
B-1
"blrlfliA -"
Ii.fii..' 3
'Section3Waatewater Sy.stern
3.1 SeNiceArea; Characteristics
3.1.1 Semoe Area Development
The service area is outlined in Exhibit 3 -1. Exhibit 3 .- 1 il1ustrat~s that the service area is bisected by
the Overseas Highway (US 1) that diVides the service area into the Ocean Side, aDd the Gulf Side.
Table 3 - 1 identifies the approximate number of single family homes, mo.bHe homes, or buildings
within the service area.
Table 3 - 1
Coneh Key Development
GulfSideServiee Ana
Street Sh1gJe Ji'8DliIy Mobile COIIUJ1ereial ApaA1ReDt VaealttLots Otlier
HMnes
Sea view ,
16\ 1 1 0 2 0
A, venue
North. Conch 25 18 1 4 0 0
Avenue
South Conch 17 20 0 0 0 1
AveQ.'Q.e
West Conch 3 0 0 2 0 0
Avenu.~
Ocean Side Serviee Area
Street SUllIe Family Mobile Commereial Apariment Vaeant Lots Other
Homes
West Trailer 4 23 0 0 5 0
RQad
East Trailer 1 12 0 0 1 0
R d
. Q~
Conch Key Service Area
Sub Total 66 74 2 6 8 1
Cl/h., P &~ L'fO N "2.-. Ii( ES /~&, IS?
"- Conch Key Service Area Total Reside_es .. 1157
3 - 1
..~
~~.
_.~ Pi :r:..Ill.,,:g;g r;;IR. :iARSa; to 18nl~":m;;; :e..:g'I~. .<.;; ll!;:8~.lgl1~g ~ l;;::q Sl. ~ ~ Ii;:g ~ ~ i!l! ~ l!:.s:!;;; i .lI!;::l; ~f18i!;talll'" ;r;;'~
S'--.:iO~~... fN......NM ..- ,.... -- ..- ('1')...........- '(,..-N ---.... ..- __in, ...5.,., l'i;i ,... ...... '..... .... ~G'I
lIS....,' I i' or ~
+ ~ t, : ! '
- I, I
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-
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Gummary of.........'..... J
.ffeotIV..ee...,.,2Q.OI14ft..ct__qtt....t.2000)
note: data must N' ..rtectiby.~_n'Ie'.,..fONJU"'m.ry'to be valid
estimated
septiQ eQUS
estimated
package
plaot ~\l.
estimated:
total litdu,
residential:
singl8famlly
51
51
m~ltiflamily:
condos
trailers
apartmfnta
pubDc heuting
other multifafl'iily
T:'"
li..;.,o.,
::!t'f\\~::
J' .
53
24
53
24
commerclat..
hotels
eamPlmunda
fishery
AOtpltal
reatauranw
~aur-'ldries
other seM.retail:
shopplnt ."t81'S
churches
federal government
state90vemmtnt
county g~vemment
school
nonoprdts,and- clubs.
other
n 77
128 1~$
.
20 20
6 6
total mulUfamlly
totai.........f.It8l_..I.ecIu.
,~. ,
2
2
7
7
totaleatimatedoemmerctaledW.
35
35
total estimate_edu.
163
163
statutory optional:
us government
state gQvemment
school
public housing
total eatimatedn$tedu8
163
163
,;y~~,. ,.
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ttreX(;'P..!.l/EJVCE ]Jf'EJfqIJVtEtECJljJVq Ii
20020 VETERAN'S BLyn., SUITE 7-9
PORT CHARLOTTE, FL 33954
PH-9~1-764-6447 FAX-941-764-8915
THE WEILER ENGINEERING
CORPORATION
ISLAND UTILITIES - EXPANSION OF SEWER COLLECTION SYSTEM AND
' J wWT:PFO~DU~KKEY ANDOON'€Bi.ia't. ..
: L January 24,. 2002. .
EDU ESTIMATE TABLE
-
HARBOUR, ~ENTER, PLANTATION, AND Y ACBT
CLUB ISLAND
PARCEL DESCRIPTION NUMBER OF TOTAL EDU'S
P ARCELSIUNITS
. Vacant Single Family 367 367
. Single Family 294 294
Clubhouse - 3000s.f 10 2 ~
Multi Family-l unit 11 '[227/77
Multi Fm;nily-2 units 20 40
Multi Family-3 units 1 3
Multi Family-4 units 1 4
Multi Family- vacant with 4 10 40
units possible
Institutional 1 1
Submerged Lots 23 0
Sub- Total: ..773 ..
-~ 1 ~ 3(p(P
-I'
INDIES ISLAND AND UTILITY ISLAND , ~sg
PARCEL DESCRIPTION. NUMBER OF TOTAL EDU>s
P ARCELSIUNIT~.
Villas - new 247 247
Villas - exist 22' 22
Villas - futUre 28 28
Villas - Employee houses . 20. . 20
Condominiums 24 24\
Clubhouse 1 1
. Hotel 178 115
j/c;CQ.4E)
Jra 7
40
4-07
,;;.:~,..'~ ~
~"'.,>:.:"
'<1,,,,.., '
~ \ ;'r~:':/}_~...':\
,Ji;'
" . ""."\,J .
~
Commercial Building - 1 6
8,525 s.f ,
Marina - 53 full serVice 1 24
slips
Marina- 32 other slips 1 .10
Utility Island Marina . 1 9
Laundry' Facilities - 3 1 14
. macho , , ..
Other Lots 5 6
Sub-Total: . 526
CONCH KEY
P M.CEL DESCRIPTION NU11BER OF TOTAL EDU'S
P ARCELS/UNITS
Motel - office 1 1
Motel - rooms 9 6
Motel- bar 1 2
Conch Trailer Court 15 15
Fire Depar1;Inent , 1 1
Nichols Seafood - 2000 s.f 1 9
Nichols Marina :-12 slips 1 4
Multi-Family Lots 5 IS"
Single-Family Units 48 48
Single-Family-Special 7 7
Coral Key Village 45 45
Wa1!er Island-office 1 I
Walker Island - single units 15 15
Walker Island - mobile 4 4
homes .' ..
Sub-Total: 173
- ~/S3
TOTALEDU'S 1472
Assumptions: 1 EpU = 167 GPD usage,. 1 00 GPD per hotel room, 0.1 GPD per s.f of
Public Bldg., 75 GPD per marina slip, 750 GPD per washing machine, 40 GPD per seat
in Full Serve Restaurant, 20 GPD per seat in Bar/Lounge, I EDU per Vacant Residential
Parcel, Occupied Residential Parcel, Apartment, Condominium or Villa, mobile home, or
office
r-
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..,..
,-.
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_.-----~--._-_.,.. -
IIIIM.I 3
---
Table 4 - 1
FKAA
Conm Key Wastewater System
Vacuum Sewer System - Probable Cost of Comtl"uction
/
.---
ItlllJl. QunUtJ unU Unit Nee (S) ~mdecI (S)
VA
.........-
VacmunSewer Mains.inPJace
4-.ior.hDiamctcr Main 4,000 LF ~4h 7. ($60~~ $240,900.00 ./ ~
'l tp~
JJ ~~j 7 (Stoo.OO) I
6-inm Diamotcr Main 250 LF $25,000.00
.
Dbislon Valves. Boxa li
""inch 10 Each $950.00 $9,500.00 II, qrJo,
,
6-inch 2 Each $1,200.00 $2,400.00
Vac:uam PIts and BWIer Tanks
Vac:uum Pits Complete 75 Each $4,500.00 $337,500.00 ~ u,,-'7 ~
v II ~O
Bu1fer Tanka Complete I Each $9,500.00 $.9,500.00
~.,. Latenls I
6-inch PVC SDR 26 4,000 LF $40.00 $160,000.00.. .It ~I (fV
SpedalWork
)
US I Clossing I Each $15,000.00 $15,000.09 (
Lino Accosa Point (any sizo main) 8 Each $2,000.00 $16;000.00 'I()~ ~ ~
Install Vacuum Valves 75 Eac~ $100.00 $7,500.00
Impc:ll1ed Fill 50 Ton $200.00 $10,000.00
V ACOUM ANllPUMP
STATION
Structure LS $250,000.00 $250,000.00 ( :..-
1 1-/15 tXJ
EquipmCllt I LS $150,000.00 $150,000.00
1!Iec1rical 1 LS $75,000.00 S75~OOO.00
t?
o
.--
~o f(~J,m ~~
. '4 /?(,.7/f~O
:-
,.-.
Table 4- 1
. FKAA
Conch Key Wastewater System
Vaeuum Sewer System - Probable Cost ofCons...tieh
WAS'l'EW ATER
T:RANBMISSION SYSTEM
. (SLIPLINEOPTION)
ClIlDing_d TV Survey 1 LS $3's,ooo.OO $35,000;00 l
PullI Push 4-inchHDPE Force 8,'s00 LF $25.00 $212,SOO.00
Main
Fumim 4-inch HDPE 8,'s00 LF $4.00 $34,000.00 '>3;$
Fu~ HOPE 8,500 LF $4.50 $38,250.00
Aoceas Abaadonod mlin 6 Each $2,500.00. $1.5,000.00 \
4-.Qlcb Plug Valve 4 Each $950.00 $3.800,00 ~
~
Bridge CroJSing 1,300 LF $100.00 $130;000.00
HAWk'J Cay System - 4-inch PM 600 LF $3.5.00 $21,000.00 \ 2~,
I
HaWk'J Cay Syslllm . Bridge I I
300 LF $100.00 $90;000.00
..
HavN. CaYSysllm . LS B 1 Each $7,S,OOO.OO $7S,Ooo.OO J
Rdtonatlon
R<*fWaY Asphalt Trench 4,000 LF $10.00 S40,OOO.OO
~0Il
Customer Scmco Trench 3,000 LF $2.5.00 $75.000100 Ib.r
~0I'l
Full Lane. Wid1h Asphalt Overlay 4,500 SY $12.00 $S4;000.80 . ./
CONCH KEY WASTEWATER SYSTEM. TOTAL ESTIMATE (5) #..13.0_00
~!>--o
odJO
~"SIhI.5$Itn? -i6~
:0.. ~fctrq. f I 011
. to I(e J, OV\ .
. ~~............i..~.......~....:~g ') 1;3 !; ;fJo
J I -j h 1j~f{ (!) 0 ( )
----
# ~!J} Cf; 'IfP'O
~. ..:i.,~., " ..
.~-,.~
~.; ,.
.;,h ,cJ:8.!lP.:,: U I '
HOME OFACE
4217 N. Old. U.S. 31, P.O. Box 528
Rochester, IN 46975
Phone: 219-223-3980
FAX: 219-223-5566
vi.J::,,\
. ':'.',.
::.:,--"-'
, ",',",'
~
TAMPA OFACE
Drive, Suite A
. Fl34677
Phone: 813-855-6297
FAX: 813-855-9093
--lanuary 24, 2002
Jeff Weiler, P.E.
The Weiler Corporation
20020 Veterans Boulevard
Suite 7-9
Port Charlotte, FL 33954
RE: Conch Key, FL
AI RV AC Estimate #2002-110
Jeff:
Enclosed is an AIRVAC budget estimate and layout for Conch Key. Also
enclosed is a Technical Report that gives supporting information as well as
technical data relating to this estimate.
We obviously are pleased that you are looking at using vacuurn sewers for this
area. However, we do want to give you the benefit of our experience with
regard to small projects. It has been our experience that vacuum is rarely. C05t-
effective for fewer than 100 connections. There are two reasons for this. First,
it is difficult to overcome the cost of the vacuum station for very small projects.
Second, the smaller projects typically do not involve very much pipe footage.
This minimizes one of the largest cost savings of using vacuum. Obviously,
none of the jobs in the Keys are "typical", so there may be other factors at work
that will result in vacuum being cost-effective.
A summary of the costs is s~own below:
# connections
# EDU's
Estimated Collection System Cost:
Estimated Vacuum Station Cost:
Total Estimated Cost:
70
153
$ 349 ADO
.$ 260.200
$ 609,600
.Annual 0 & M Cost:
$ 13, 1 OO/vr
Please note that our budget estimates include only the',!~If_~'h"tltiljo.r
va9l1Wmsyste:m campane.nfs. It dqes not include item$slJotr.j\ls:fiinl8lil'su~ce
restoration, ro.ad borings, homeowner.heokups\and other incidental costs. Nor
does it include project costs such as engineering,R~...W, ,i.1~.,etc..
;-.
;:y'..i..........i
,.,.,'....... .:.
',.".'.
>
Jeff Weiler, P.E.
January 24 , 2002
Page 2
The cost issue aside, this appears to be a goodapp/icatibn for vacuum sewers
for the following reasons:
· A new vacuum sewer system would provide a superior collection system
to a gravity sewer system. First, the inherent tight nature of vacuum
would eliminate the III problems associated with gravity systems.
Second, the shallow installation would make future connections and
repairs much easier than with the deep g~avity sewers. Finally, odors
would be significantly reduced .since no manholes or .otheropenings
exist within the collection/system. .
· Vacuum would also provide a superior system when compared to low-
pressure sewers utilizing grinder pumps. Power is. only required only at
the vacuum station instead of at every service connection. Standby
power at the vacuum station insures uninterrupted power during power
outages whereas standby power is not practical for every single grinder
.:.::::,~'J..'. pump. Long term O&M should be significantly less especiaHy when
~ replacement of grinder pumps at is considered @ year 10.
If you have any questions or require additional information, please do not
hesitate to call.
eA(\~
Rich Naret, P.E.
Copy to:
A/RVAC - Rochester
"'iii
.......,.
Conch.Key, FL
# Connections 70
. # EDU's 153
COST ESTlMATE .
AJRVAC Estimate#2002-11.0
INST~LLED COST-COLLECTION SYSTEM
~-k
QUANTITY
1,600 If
2,500 If
. 37 ea
2 ea
4 ea
35 ea
2 ea
p.-t-S"et
3%
1 ea
____ 3000 If
.(
o
DESCRIPTION
6" Vacuum Sewer
4" Vacuum Sewer
Crossover Connections
6" Division Valve
4" Division Valve
AIRVAC Valve Pits *
Dual 8 uffer Tanks
Special Tools
Spare Parts
Portable Vacu~m Pump (Testing)
4" Force Main
UNIT.
PRICE
'30,00 lIt 3 2
25;00 . /If 't.-9$D
500.00 lea ~OO
1,000.00 lea I Z, (jtf)
800.00 lea (,' ~(J1-0
3,500.00 lea ~S'<:!) e
5,000.00 lea J /'
3';OOo.nO 7ser'p--..
@
@
@
@
@
@
@
@
@
@
@
16,000.00 lea
20.00 /If .,/
Sept '<jg u. A ~ Jrtl-t 0, U. f COLLECTION SYSTEM COST
(,. /fro.! ~ 3~~ 0 CJ 0 T
,..i>.h:),;;.;i::,0~:;J · Includes ~,~/bergJass PfI, Cast Iron Cover"" Frame,
~ ~~,~ &{::;r: :::ath~~:~5P":<I~ :'''f') ;~~~
. . - !:i" (:) ~ ..51t~ 3 ~i)O
IN$TALLED 90ST-VACUUM STATION 300 "DoT Fb~ 2_"0
Equipment 2. 700 lJ(?rsh~(d.lk ~-
Equipment Installation 1
Station Wiring, Piping, Etc
Motor..generator set
Building
Adjustment (odor control)
TOTAL IN'$TALLSD'COST
Jtr Vtts;. N~$ th~.5 I/o! /;,-
US/L [jor k'5 VCllue-s
Estimate does not Include site specific items such as surface restoration,' road bore~t~' I Cv- C)fJ Sin J .'
AI RV AC F"JeId Services should be Included In project bUdget (Options: full time, part time,. train. en. gin"". 1'. s. . InspeCtor) ../:,
- ;, "~'4f frer LqTett1 S - tftJtt:J t.r . / foOl 4' tPO
24--Jan-02 Date of estimate (good for 1 year) .'. .( .
. . I/o 99o(X)
-., '; ) ) .
1-/75' oot1J
I
'<:.I...... .
.',::.",\.>:'"..'"
1.:-...' :
13"".d1fMJ
'!11:,~
.7j~
''Y. ~t:'
I
1:3 5>o~
31'J,f.{Ib ~
[s &.lak ./-. .Ja. '" tJ7.. . " . !If)"'.,...,
~ I.fb"L } S"8 YOo .~ cP:3 :J~~ UP ~
~--C;b3) I. )
VACUU;'i:T~OH::;'&~()t
1/
:.,1-/::..
II J 1/
TOTAL
PRICE
48,000 57,/
62,500 73 ~
18,500 L -Z'Z
2,000 2.1'/,
3,200 f f!)c
122,500 / ~ 0<
10,000 I b d
3,000 ~o.
3.700i!O
16,000 7~ c
60,000 t1f,.~. 9~
., fP. 0
ld.J24J400 ~.~ Ct
3~o-
I
110,200
25,000
. 15,000
20,000
75,000
15,000
$260,200
.f 5 7.s; tXJC
$609,200
pe",~C6a
7S () O()
"I
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.--
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Table 3 - 6
Probable Cost ef ConstNetioD
Conch Key WWTP
.~......'.'.
. . -- - .,' -, -'~
Ref....e~
Descrip~on ApprctDmate Number Units J\p,.oDmateCost Total. Cost (5)
Capacity (S)
Site Preparation 0.5 Acre 1 $20,000 $20.000
Flow Equalization 15,000 gal 1 $20,000 $20;000
Infiuent Pump 25 gpm 1 $15,000 $15.000
Station
Anoxic Treatment 5.000 gal 2 $20,000 $40;000
Sedimentation 125 ft2 2 $15,000 $3-0,000
Aerobic 10.000 gal 2 $35,000 $70.000
Treatment
$5,000 . . $10,000
Chern Feed 1.0 gph 2
Filtration 7.5 ft2 2 $12,OOQ $24,000
Chlorine Feed Tablet 2 $5,000 $10.000.
Contact Tank 1,000 gal 2 $5,000 $10;000
Shallow Well 15 gpm 3 . $1,500 $4.500
Sludge Holding 15,000 gal 2 $15.000 $30.000
Electrical Room 1 $25.000 $25,000
Miscellaneous 1 $50.000 $50.000
TOTAL .~ S358tSflO
F~RA ENVIRONMENTAL SER ID:305-296-8747
0= r;-U1~
C- ~ Co Ik ell;y,
.JVt" ...... ""...
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',,):" '...',."". .'L\
, " ..."~.' '-"
......1
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~"':"
':' ",." ,.
-..;"';i",
o & MEatlmate - Conch Key (stand-alone WWTP & colfection system) I
.. I
..
FIMt1CeCl C.pItIICo.t: Amt.~ . 2$0.000.00
EOU'e 160 1rtt!M'_..t ".0%
~o.C) 0,0250S T.m OfloM 20
!Iectrlclty: ,.-
ltem(.) , HP houraldlY An"uelC~t
...
Vaouum blowerl 15 8 1 $4,~,OO
StwlQe dl80harce pump. 3 10 e: $1,0ea.60
- .. .. . -
Aeration tank a.rators 10 24 ., SU08;Co
Oi:le8ter ~ .. 7 _.~ ..
5 5
Milcllr-SBR 1 12 J ...co
MilQellaneoue: lighting, .Ir compr88SDr. cIIrIfIer .. S8IilO.oQ
.. driY8, aludae PUn\Jl$, tllte, baokwllh pump.,
chemical. fHd DUm~,eto.
Coat. Electflelty 0 $15,737.15
\11 !.tf/(P r;.' I/" 0
; .. ....
I..abor: If" J,; f ~ I"lff
/ "T ~ /r.r
Item(a) .. . '/
hrll'wMk $lhr
Trhlme~t plant routine maintenance '0 $40.00 rr $2GeoQ.OQ
Collection syatern 1'llUtIn. malntenanot 5 $40.00 III $10,400,00
,.
Co/leQllon ayatem eml/'g.ney INIln'e~.11CI 3 $80.00 7! $9j_,~
Treltm.nt, fIIlnt emergency melltenanoe 1 $80.00 ,7 S3;12CU'JO
COlt - Lebor ~;eeo.oo
I fi 17&.r> V_
" I
ChIMlClAIs: .... 7 2~ 'QUJ
DIIW.cUon tablet&lday $Icontllner conllln,r.tyr -
Cllclum chloride (tablets) 2 S215.OO 187 $527.22
. - -
~ogen Removal gaUday COlt/gel Omfdl\ll1 - .
MelhlnCll or Caustic 1 $2.50 55.00 ':1 $912.50
-
DayM~ ;
pho&phoJus Removal II/day COIIJIon
-
AlUm 15 ! $280.00 133..". tT $78UO ,
Cost- ~icel. I ./ n.2Oe.2t
-. -. -t- Ie ()~
Residual $oUds Dilpo$al: 1" Z2bb
Item(a) pel day per Y*I' HaulW. Oo(tJheul
1# of unet@Uizedaollds (dry weight) S2 '8,mlO
, of .u.blized -'ld. (Q"y \Wight) - -
36 12.775
Gll/lon. of.tebI~ IOIlcIa (CD1.S" 8OKd.) -.
280 1 02,200 12 $500.00
Resldual$oIld. OI.po..1 C~ -
0 .. $8 000.00
'0 .' ..
Vehlcl.,.: '.
Item M1'eaJday
o. '.-
Miletldltv 50
Coattmll. $0.35 I
---. .
VlhldeCo.t IV~h1l'.J-P (. 2 ~f.J 18,381.60
'.
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Renewa' . Replacement: I
ltem(s) i I
AnnuaJcost~hnl_~ puma ~ , $ 2,320.1.2 t/ l' J;O/~
Annul'. of vacuum blower ovwhIul $ S35.Q4 ~ I
...
Annual(;OSt ofWI,vTP .el"ltlOnblOWlr overhaul $ 964.~
Annual ooet ofrelUld1ng VIClJum Vllves $ 3,4'1S,~
Ann\llll<<* of emergency generator overhaul $ 481.71
~I.~ ofcllaDoulWellmlHtnan08 $ 2,000.00 ~
Annual QOIt of oclor oontrol media change out $ 450.00 )i
.--.
Cost of In R. - . .. $10,31 T.t:i9
e b2tJeJ ,/'
CustC!lNfSorvIce & Billing: r 'IClCClII'D I .,.. t///4
$40.001 I ..
86 $2,.;00
-. ,
: -
N1lat."an-.ousCOItI:
Inaul'l!ltlO: property, WOI'ken camp, 1I1b111ty 0.5% $850,0(1) AL;t $4,. 7 U. t;-4-o
Ol)erailCln. bOI'ldpremlum O.60~ $50;068 !7J1:' '. . .~.II
'.aM"?
D1...rueJ Ce generalor) r Vl I $1~
.~.tl)l'y. corTU)l~ & aqmlnlstratlon ~ S$;O(lo
TelephOneseMu(ba~lc IoCII) h $1$0 .-
SOlid "",,,ooIll1ctkln (soreenlnp) -1 -
480Q
Plll4blt Wlter .-
LaM~..e .. SO
..!.,otal MI..laneo.C.a ~ $10'400
~ '0'.1 rTJ ~
~
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$l.ab-totaISyltemO&M Co~t: $S7,328.f51
-
aenel1llUUllty eoatf (10%): 12% $97,328.87 $11,819.048 '"'
1~II,firlInot, looountlng, ludltilg, purche.Inc, ..
... .. ~ "'.
..
information .ysteme, bl.llld~ Il'lIIInlllnllnc., I'UJ l{ '1
IlIrounda maintenance, conlnM?l. mlnlllement, --
contr.~ ,dmlnlstmlDn, rate evaluatloll'.ae.ttina) ,
1
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Qebt OC)v.,.ge(ftnl~c.pltlll): 20% $250,000 ~'(.. i $a,@.OO 7 '\
I I tl'1/1.J
.. ~I
Rev."u. CQ\iW1 Iy service f..s): $~7,32U7 $'.MU8
.. -
C()nUng.ncy ('%): 5" $97,3211.87 ~..<404
- - ..
TotIIIeatlrnated 8vafemO&M Cost: h -
.11e.321.~
1-.. -
M""t1l1vo&Mj:()atlEDU C2OO2 dollar.): _.13
FKAA ENVIRONMENTAL SER ID:305-296-S147
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<lExcelle, ~ce In Engineeling"
20020 Vetero.ns Blvd., Suite 7--9
Port Charlotte, FL 33954
(941) 764-6447 pn
(941) 764-8915 fax
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February 22, 2002
The Honorable Ken Sorensen
State Representative, District 120 .. . .
Florida House of Representatives . . . . .' ." '.
The Capitol 1102 . , . ..
Tallahassee, Florida 3'2399-1300 . . ... ....:.'. :\.~..'.':
.", _. I . . "-
Re: Conch. Key Waste Water Collection ~.Tt~~nt Fac~~':;.~r~;.~.v:i&:.j<<~i.
:::=;::;=Aqu~req~s~my~;i';';'~/l~'i;!L;D
abbreviated capacity analysis repoit~~~ll1e ability of the wAAL .::':.<~.: ."
Hawks Cay Resort to accept flows~:~~cli;~Key and the propoS#1~~~t:::
resort. We found there to be ampl#~~~#1'the existing treatme~t@:~4!~~t. . ,.,:,_. >.:. >..
submitted the report and sUppo~g!.~~~tation to Mr. Gus Rios.:~1h~.::~~~~~ ,.... ..::.:~.~j~t;Qf';...
Environmental Protection in Marilm~~~~:.Mr. Rios cc;>ncurred with qUii;~.s,~.:, :.\:.:;::.':':;...:,..: .. .:./~":'.
... .." :~;~~'<.~~':ifr::~!-.:. . :'. ~ . :. ."' .....:.::.~ '.; ~~-:: \:~;~\~.~:i,'.: :~::1.:.\.~:;::.~:~~:}/.;......
Earlier this year we were ask~~id:ey~'~~ the feasibility of transporti~'~~$_.'" ~'~.:~.~:~~1;i-e.j:h;:~:. :.
Key via a transmission m~~.~~~~~ter treatment facility at Ha~;;..~,>.. . . ... .. ,. ">~\::~~!,.:2:};:,'<,
c.onstructing and operating,~;~~i_ent facility on Conch Key or neat~$~i(~. ;.:.~~~<?;\:.:.~\,
location for a new faci1ity:,~~t~j" the most limiting factor but the C~~C.~ . ~\.Jt"~:. ~.{::;:.\.-
operate a separatefaciliti':i#o~~ti}:ti~ prohibitive when compared to the cQ.@:;~Y'.. .,...._ ,.,,~ ~fii:Y~V{::' ..
main to Hawks Cay and:;~~)Ii~ additional cost of operations at theexi~):~~~~/~ir:.;:'. (':.<r:.'"::: ::: .
. . . .<. : .)...' - ,. ...".,;.
A report by the FKAA'~~.oncurred with our findings, . ..."C:{;.}'f,; >~t;, .
It is my opinion ~f9P.~~~~ of II collection system on Conch Key and tranSJ#J~~.~;~~:~.:..:;:.;.??;::' ,-
to the existing trea~~f.~)i~~ at Hawks Cay is the most feasible solution to e.~~~~~~~:Y\;~:.:.<:.t: ..
and substandard s~s~s located throughout the Conch Key area .:. :;;P.;,';.''-;r.:~:":~::.:;,, :':"i... :.::' .:..'...
. .'/;~.:..:-';<.':i.";~:. . ,.. . .:y.~;:::/.::\}j.j~~:;~.:~.\.:;:;.i::~j'.i.,::.
Please feel free.iQ';~~'me;a.:ca11 at (941)764-6447 if you wish to discuss matters furt~~i:X;;'.\:~:<.;:::.::?;.;,::.':. .:
:'.'~ >.' <:.~ :" '. ':' ...~~...:.. ./':"'. .... .,::.~.: ,~.l:'\.:;:'~).::\ .
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Sincerely,. .
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Presi~t.Y :r... '.
ThevVe~eii;~#w:eering Corporation
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. MACK CONCRETE INDUSTRI'ES.. liNe.
Wednesday, February 06, 2002
DAVID FANSTILL
WElLER ENGINEERING ,-
20020 vETERANS BLVD STE 7
PORT CHARLOTTE, FLORIDA 33954
RJ;: EXPANOING EXISTING WASTEWATER TREATMENT FACILITY FOR HAWKS CAY
Dear DAVID:
, '
THANK YOU FOR REQUESTING OUR INVOLVEMENT IN THE PLANNING FOR THE
EXPANSION AND UPGRADING OF THE HAWKS CAY WASTEWATE~ TREATMENT PLA.NTS
TO MEET THE FUT!JRE NEEDS OF THE VILLAGE OF HAWKS CAY oN DUCK KEY.
OUR RECOMMENDATION IS TO CONTINUE THE UTILIZATION OF THE EXISTING TWO
TReATMENT PI.ANTS. MAKE MODIFICATIONS TO BOTH PLANTS AND BUILD.TWO NFiW
TREATMENT TRAINS. BRINGING THE TOTAL fACILITY SIZE TO A AWT FACILITY WHICH
CAN.HANDLE A FLOW OF 350,000 GALLONS PER DAY WITH FLOW EQUALIZATION,
NUTRIENT REMOVAL, TERTIARY TREATMENT AND HIGH LEVEL DISINFECTING.
WE BELIEVE THIS CAN BE ACHIEVED FOR A BUDGET OF APPROXIMATELY $750,000
DOLLARS tOR THE" TREATMENT PROCESS.
ALSO, BY PHASING THE PROJECT. AS DESIGN BUILD IT WOULD SAVE OVER.ALL
PROJECT DOLLARS AND TIME FOR COMPLETION.
JOH LAH
Mack Concrete
PH 407-493-5522
. ~~..,~.
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23802 COUNTY RDAD s." . 110)( 187 . Atn'ATuLA. FL 347D5
3!SJe.o74a43lJa
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Date: Monday,. May 06, 20~2
To: WEILER ENGINEERING
JEFF WEILER
Phone: 941-764-6447
Fax: 941-764-8915
From: Mack Concrete Ind
JOHN OLAH
Phone: 407-493..5522
Fax: 407-654-4809
P'ages: 2
. Subject: HA WKS CAY WWTP MODIFICATION
WE RECOMMEND MAKING STORAGE PART
OF wWrP EXPANSION. THE COST OF
ADDING STORAGE FOR APPROXIM^TELY.
$1.00 PER GALLON WOULD BE OFF SET BY
THE COST OF CHANGES AND REBUILD' OF
TIJ.E EXISTING POND.
,.,,1,.,.. ..,,.,n.., IInM "."H rTv/RV Nn !'i::l421 ld.1001
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01/11I2ElEll 17: 52
3El52929591
ALL ANIMAL CLINIC
A-'l1e_lJ El2
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Ilffpnqe 7
, SYNAGRQ
A. R~sitiN.,11 M#-lf~.,.r C ~"''''If)'
- February 1,2002
:Mr. JeffWeiJer, PE
Weiler Engineering Corporation .
PO Box 380874
Murd~ Florida 33938-0874
M:Ope.rating cost estimates
Dear Mr. Weiler:
At your request, I have developed a cost estimate for the. operation. and mamt<<UUiac of
the Duck Key wwrP ater expansion to accommodate anaverqedailyflow of 0.350
MOD. The total estimated amnJal cost for qperating. the facility is $264.240.00. A
breakdown of the estimated costa is provided below.
Operation and Maintenance
Utilities
Chemicals
Residuals Disposal
Repairs
$96,940.00
$67,700.00
553,000.00
$21,600.00
$25,000.00
These costs are based on ~ following assumptionsprovJdedby thetinsifleer:
· An average daily flow ofO.3S0.MGD with intJucnt loadings of 220 m#l CBOD and
200 mgIl TSS. Typical domestic sewage characteristics are assumed for all other
parameters as well. . .
· Treatment will be to Advanced Wastewater Treatment standardsahd eft'luent will be
used for irrigation. The .FDEP staffing requirement for the WWTP is therefor 6 hours
. .
per day, 365 days peryear. . .
· Standard compliance monitoring for this class of WWTP wiUbe required. Any
additional testing, such as monitoring well testing, etc. may create' an additional
expense.
· Significant biologiCal removal of phosphorus will be achieved, towering the.
concentiation ofphosphonls to-{__..,.~Jl)~.~JI,.W__~:;_.J\,D;;.li
· A dewatering device such. u. a belt fiher press. or a c;:entrifuge witl be used and will
produce a sludge cake at .Zoo", solids. This. sludge will meet..Class .B. stabilization
requirement without furthcrtreatment or special handling.
S'114gro S~IIIhtR.Jt, J1Il'.
89111 Ovencu Highwar. l'a"'=lliel, FL "070 . Ph: (3~) 8'2-'103 .1'ax: (30') 8'2-'897
Ell/11I2ElEll 17~ 52
3El52929597
ALL ANIMAL a..INIC
PAGE 133
~""
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· The collection system will consist of the existing gravity/furcemain systems,
extension of this system of service the rest of Duck Key, and a vacuum collection
system for the Conch Key area.
The Operation and, Maintenance fee ofS96,940.00 includOlstaffing of the treatment plant
with a licensed operator in according with the fequireme8ts of the Florida Acbnintstrative
. Code. standard compliance testiD& . pmeess control testing, routinemaitlteD&Rce
procedures and. preparation of the DiKharge MOnitoriJ:)s.Report. Daily !nsPeotion. and
rJ . ...routin... ...........e. ~te~ee of the coll~iQn ~ystems is alSO. 1.'.IlC..,lud.ed.". ?~...~...,:,1IJ..!~~"".'. ....... .M...... ..
( _.~$j'!:replW'parts, non-routine. nuuntenance, et,,/_.....,
k ~; ..;I;~: ~e ~st for parts, non-routine maintenance and emergency _I, areimJludedin
S . ouJ tbeRepau'S estuuate.
lfl 514m4
I hope this provides the information you need. These are current costs and may i1t4te8Se
in the future. Any deviation from the assumptions above may also impact these
estimates. If you have any questions, please feel free to call.m~. .
Sincerely,
~
Ed Castle
Operations Director
..J
~
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"'el/18/2El01 16:38
3852929597
- -> .
5 DIReCTCOST8 SUMMARY
M811tu~
ALL ANIMAL CLINIC
PAGE 82
.20.0%
.aIOMGDAWT plant with 20% cake haul and vacuum collection ..,.um
Wltbetlluentre......
Treatment Plant Operatioml
. Labor $38,980.00
Beneflts $12,000.11
OVertime $4,002.00
OffiCe Supplies $500.00
OpeJ'8tlng Supplies $500.00
Postage & Frelght . $0.00
Telephone $1,200.00
. in-house Lab $9,288.00
Outside Services $1,580.00
Water $4,200.00
EleQtricity $83,000.00
Chemicals $38,792.00
VehiCle Expense $2,272.35
RepalrPart9 $10,000.00
Margin S TotalS
, $7,792.00 $48;152.00
$2,400.02 $14,4'QO.13
$800.40 $4,802;48
'100.00 - $800.00
$..00.00 $8er);oo
$0;00 $0;00 .
$240.00 $1,440.00
$0.00 $9.288.00
$0.00 $1.580,00
$840.00 $5,.tl<4CLOO .
$03,000.00
$44,150.40
$2,72~U2
$12,000;00
$011. operation.
,: Labor
~\1 Benems
'..J Overtime
Contract Hauling
OutsIde $I:lrvioes
Chemicals
Vehicle bpense
Repair Parts
$0.00
$0.00
$0.00
$.21,557.81
$700.00
$7,3n.56
$0.00
$0.00
Collection System OperatiOns
labor $10,120.00
Benefits $8,342.00
Overtime $4,218.68
Chemicals $0.00
Vehloie Expense $1,891.36
Repa!r Parts $7,500.00
'7,358.40
$454.41
$2,000.00
$0.00,
$0.00
$0.00
$0.00
$0.00
$1,475.51
$0.00
$0.00.
$2,024.00
$1,288.40
$843'.34
$0.00
$378.27
'1,500.00
$0.00
$0.00
$0.00
$21,567.81
$700.00'
$8;853.08
$0.00
$0.00
$12,1..00
$7,e10~40
$5,080.02
$0,00
$2,289,83
$9,000.00
~';040
Direct Cost. M.-rgin Contract
Total $238,479.87 $28,074.81 $214.554.18
As per instructions from the engi'.leer, these costS assume significant
biolos:>>ical remov~1 of phosphorus. An estimated effluent concentration
- of 2 mgJJ prior to precipitation with alum has been used.for chemical
cost estimates and forslucJge hauling estimates. If the phosphOfUS
concentratjon Is greater, there will be Increaaed chemical and hauling
costs. .
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