Agenda 05/16/2014PELICAN BAY SERVICES DIVISION
MUNICIPAL SERVICES TAXING & BENEFIT UNIT
NOTICE OF PUBLIC MEETING FRIDAY, MAY 16, 2014
THE LANDSCAPE AND WATER MANAGEMENT COMMITTEE OF PELICAN BAY
SERVICES DIVISION BOARD WILL MEET FRIDAY, MAY 16, 2014 AT 2:00 PM AT THE
PELICAN BAY SERVICES DIVISION OFFICE, SUITE 302, 801 LAUREL OAK DRIVE,
NAPLES, FL 34108
AGENDA
1. Roll call
2. Agenda approval
3. Audience comments
4. Review of lake pollution status (Dave Trecker)
5. Consideration of CH2M Hill and Turrell Hall proposals
6. Discussion of experimental use of blue Tilapia to control algae and duck weed (Tom
Cravens)
7. Other Business
8. Adjournment
ANY PERSON WISHING TO SPEAK ON AN AGENDA ITEM WILL RECEIVE UP TO THREE (3) MINUTES
PER ITEM TO ADDRESS THE BOARD. THE BOARD WILL SOLICIT PUBLIC COMMENTS ON SUBJECTS
NOT ON THIS AGENDA AND ANY PERSON WISHING TO SPEAK WILL RECEIVE UP TO THREE (3)
MINUTES. THE BOARD ENCOURAGES YOU TO SUBMIT YOUR COMMENTS IN WRITING IN
ADVANCE OF THE MEETING. ANY PERSON WHO DECIDES TO APPEAL A DECISION OF THIS BOARD
WILL NEED A RECORD OF THE PROCEEDING PERTAINING THERETO, AND THEREFORE MAY NEED
TO ENSURE THAT A VERBATIM RECORD IS MADE, WHICH INCLUDES THE TESTIMONY AND
EVIDENCE UPON WHICH THE APPEAL IS TO BE BASED. IF YOU ARE A PERSON WITH A DISABILITY
WHO NEEDS AN ACCOMMODATION IN ORDER TO PARTICIPATE IN THIS MEETING YOU ARE
ENTITLED TO THE PROVISION OF CERTAIN ASSISTANCE. PLEASE CONTACT THE PELICAN BAY
SERVICES DIVISION AT (239) 597 -1749 OR VISIT PELICANBAYSERVICESDIVISION.NET.
INPUT FOR LANDSCAPE & WATER MANAGEMENT COMMITTEE
MEETING ON 5/16/14 (Dave Trecker)
Regarding the lake pollution problem, recent data have been distributed to
PBSD directors. The data are summarized on the attached sheets. Ivey findings
are:
• Dissolved nitrogen levels remain high. Misuse of fertilizer and /or over -
irrigation (recycled water is loaded with nutrients) may still be a problem.
• Combination of aeration + bacteria + plantings appears to best reduce
algae build -up.
• Dissolved copper remains high in many lakes, including private lakes
where some associations may still be using a copper algaecide.
• Equilibrium between soluble and insoluble or sediment -bound copper
appears to have been reached in many lakes, leaving high levels of
copper available for washing into Clam Bay. If this is verified, some
means of removing or reducing copper may eventually be needed, e.g.,
ion - exchange treatment, sulfate - reducing bacteria, "treatment wetlands"
in swales along the berm.
At the request of the LWM Committee, CH2M Hill submitted several proposals
(attached). In summary they are:
(1) To continue quarterly sampling, testing and reporting on 45 lakes, as
in FY 2013 -14. [$86,09p
() carry 2 To out biannu sediment measurements and analyses on 10
lakes. [$55,900]
(3) To assess the technical feasibility and cost of three copper - removal
procedures (above). [$20,668]
(4) To provide expanded consulting services. [$32,702]
At the request of the LWM Committee, Tim Hall submitted a proposal for
biannual sediment measurements and analyses in 10 lakes, as he did in 8/13
(attached). [$8,560]
It is recommended the LWM Committee endorse for board approval
(a) FY 2014 -15 quarterly sampling, testing and reporting by CH2M Hill
[$86,091] and
(b) biannual sediment measurements and analyses in 10 takes by Tim Hall,
twice this year [$8,560] and continuing into FY 2014 -15 [$8,560]
LAKE WATER QUALITY UPDATE
In preparation for the 5/16/14 LWM committee meeting, I toured several of the
lakes with Pedro Pineiro. Here is a summary of my findings.
• A number of lakes, including but not limited to the test lakes treated with
aeration + plantings + bacteria (3 -4, 3 -8, 3 -9), were free of visible algae.
Conclusion: Something is working — the lake treatments or the
responsible use of fertilizer and irrigation.
• Others had a great deal of algae, including 1 -4, 3 -3, 4 -1 and Lakes 9
(Glenview) and 10 (Commons /St. Maarten). Those were among the few
visited. Conclusion: Not everyone is using fertilizer and irrigation
responsibly.
• Nearly all of the lakes I visited had some unsightly surface growth —
algae, duckweed and/or "bottom weed."
• While our immediate concerns are residual copper and control of algae
build -up without use of copper, it's relevant to note the substantial build-
up of duckweed, also fed by nutrients from fertilizer /irrigation runoff,
and treated by Reward ( "Diquat Dibromide "), a potent herbicide that is
not easily biodegraded.
Dave Trecker (5/13/14)
TO: Tom Cravens, LWM Committee Chair
FROM: Dave Trecker
DATE: May 19, 2014
SUBJECT: Lake and Sediment Sampling & Testing
At the 5/16/14 Landscape & Water Management Committee meeting, you
asked me (1) to nominate 30 lakes where sampling /testing should be continued
in FY 2015 and (2) to nominate 10 lakes where sediment should be measured,
sampled and tested for copper.
Here are my recommendations.
(1) Lakes for Continued Sampling & Testing
Basin 1 1-4,1-59 1 -6
Basin 2 2 -1, 2 -3, 2 -5, 2 -6
Basin 3 3 -15 3 -2, 3 -4, 3 -59 3 -6, 3 -79 3 -8, 3 -9
Basin 4 4- 1.4 -3, 4 -6, 4 -7, 4 -8, 4 -9, 4 -10, 4 -11
Basin 5 5 -1, 5 -2, 5 -3, 5 -5, 5 -8, 5 -10
Basin 6 6 -2
The bases for these nominations were as follows:
• Keep most of lakes in basins that feed swales that empty into
areas near Upper and Inner Clam Bay (where copper content is
highest)
• Keep all lakes that empty directly into swales on east side of
berm
• Keep all lakes where sediment sampling is proposed
• Keep all test lakes
• Keep all private lakes where copper levels remain high
• Keep lakes near U.S. 41 which might collect Pine Ridge runoff
• Keep lake where fish testing is proposed
(2) Lakes for Sediment Measurements, Sampling & Testing
Basin 1
1 -4
Basin 2
2-192-5
Basin 3
3-2,3-4
Basin 4
4 -1, 4 -9, 4 -10
Basin 5
5-3,5-8
All but 3 -4 and 4 -9 were sediment tested in August 2013. Nominations
were based on testing continuity and proximity of lakes to swale entry
points (above).
TURRELL,, HALL & ASSOCIATES, INC.
MARINE & ENVIRONMENTAL CONSULTING
3584 Exchange Avenue, Suite B • Naples, Florida 34104 -3732 • (239) 643 -01.66 • Fax 643 - 6632• thall @turrell- associates.com
May 2, 2014
Pelican Bay Services Division
Ms. Lisa Resnick
801 Laurel Oak Drive, Suite 605
Naples, FL 34108
Re: Proposal for Professional Environmental Services
Sediment Sampling Collection and Analysis
Dear Ms. Resnick:
Turrell, Hall & Associates, Inc. is please to provide you with this proposal for environmental services. It is
our understanding that you would like for us to conduct sediment sampling within the basins of the Pelican
Bay stormwater lake system, established during the quarterly water quality sampling we began in 2011 for
The Pelican Bay Foundation. Our scope of services for this collection and lab analysis is found below.
Data Collection:
Conduct sediment sampling using two sample locations per each basin (10 lakes total)
....................... ............................... .........................$4,000 /per event- Twice a Year
Data Lab Analysis:
Lab Analysis for sediment sampling.
o Copper and Aluminum .............. ............................... $280 1per event- Twice a Year
AnnualTotal ................... ............................... ......................$8,560.00
Please feel free to contact us with any questions.
Sincerely,
75�A��L
Tim Hall
Senior Ecologist
DRAFT
ATTACHMENT A
Scope of Work
CONTRACT NO. 13 -6164 (EN)
Professional Services: Architect and Engineering
for
FY2015 Pelican Bay Stormwater Lakes
Water Quality Monitoring
April 18, 2014
DESCRIPTION
CH2M HILL Engineers, Inc.
5801 Pelican Bay Boulevard
Suite 505
Naples, FL 34108
Telephone; 239- 596 -1715
Fax: 239- 596 -2579
The objective of this work order is to contract outside Consultant Engineering Services
(referred to hereafter as CONSULTANT) for the Collier County Pelican Bay Services Division
(referred to as COUNTY), to provide Stormwater Lakes Water Quality Monitoring. The scope of
services is a continuation of ongoing services provided during FY2014.
PART 1. — SCOPE OF WORK
TASK 1: Stormwater Lakes Water Quality
Task 1A: Sampling and Analysis
On a quarterly basis for one year, CONSULTANT will collect surface water grab samples at 45
stations listed in Table 1, as well as up to 7 additional samples per sampling event for quality
assurance /quality control. Consultant will analyze the samples for the nutrient and trace metal
parameters listed in Table 2 using a laboratory appropriately certified in Florida through NELAP.
The procedures for sample collection, handling, and analysis will follow applicable Standard
Operating Procedures published by the Florida Department of Environmental Protection
(FDEP). Field procedures will include documenting the date and time of sample collection and
results of field measurements of water temperature, pH, specific conductance, and dissolved
oxygen within 1.0 foot from the water surface.
r nor F I
PBSD_FY2015 SG ovriaKDOC
TABLE 1
Water Sampling Locations
Pelican 8ov Stormwater Cakes Water and Sediment
Sample
No.
Station
ID
Station Name
Sample
No.
Station
ID
Station Name
1
1 -1
Waterside S
24
4 -3
Bay 3
2
1 -2
Waterside N
25
4 -4
Bay 4
3
1 -3
MJD
26
4 -5
Bay 6
4
1-4
Crayton
27
4 -6
Crescent
5
1 -5
Registry S
28
4 -7
Pelican 6
6
1 -6
Heron
29
4 -8
Coco Bay
7
2 -1
Ridgewood Pk
30
4 -9
Pebble Creek
8
2 -2
George N
31
4 -10
Pelican 3
9
2 -3
George W
32
4 -11
Calais
10
2 -4
Club 4
33
5 -1
Hammock Oak
11
2 -5
Club 7
34
5 -2
LAmbience
12
2 -6
Lugano
35
5 -3
Avalon
13
3 -1
Laurel Oaks
36
5-4
County Park
14
3 -2
Las Brisas
37
5 -5
Breakwater 5
15
3 -3
St Andrews
38
5 -6
Bay Colony EM
16
3-4
Pelican 9
39
5 -7
Bay Colony EN
17
3 -5
Interlochen
40
5 -8
Bay Colony WN
18
3 -6
Valencia
41
5 -9
Bay Colony WM
19
3 -7
Crown Colony
42
5 -10
Vizcaya
20
3 -8
Pelican 1
43
6 -1
Trieste
21
3 -9
Club 9
44
6 -2
Remington
22
4 -1
Oakmont
45
RC
Main. Site
23
4 -2
Bay 2
PAGE
PBSO rYZ015 SG OPTION.DOC
TABLE 2
Laboratory Analyses and Methods
Pelican Bay Stormwater Lakes Water and Sediment Quality Monitoring Program
Parameter Method MDL
Ammonia Nitrogen
EPA 350.1
Nitrate /Nitrite Nitrogen
EPA 353.2
Total Kjeldahl Nitrogen
EPA 351.2
Ortho Phosphorus
EPA 300.1
Total Phosphorus
SM 18 4500 -P E
Hardness
SM2340B
Total Suspended Solids
EPA 160.2
Arsenic
EPA 6010
0.5 m/L
Copper
EPA 6010
0.93 µg /L
Zinc
EPA 6010
2.5 µg /L
TASK 1B: Reports
The CONSULTANT will prepare a brief technical memorandum (TM) to summarize the results
for each water quality sampling event. The TMs will include the laboratory reports, field notes,
and chain of custody forms.
TASK 1C: Presentations
The CONSULTANT will present a description of the findings from each quarterly sampling event
to the Pelican Bay Advisory Board after each TM has been prepared.
PART 2. — PROJECT SCHEDULE:
The schedule for sampling events and deliverables shall be as follows:
TABLE 3
Project Schedule
Pelican Bay Stormwater Lakes Water Quality Monitoring
Task Target Completion Date Notes
Quarter 1 Sampling November 2014 Assume NTP by October 2014
Quarter 1 TM
Quarter 1 Presentation
Quarter 2 Sampling
Quarter 2 TM
Quarter 2 Presentation
Quarter 3 Sampling
December 2014
January Board Meeting
February 2015
March 2015
April Board Meeting
May 2015
Assume 3 -week lab TAT
Assume 3 -week lab TAT
-- PALE S
PBO- PY2015 SC OPTION.DOC
Quarter 3 TM
Quarter 3 Presentation
Quarter 4 Sampling
Quarter 4 TM
Quarter 4 Presentation
June 2015
July Board Meeting
August 2015
September 2015
October Board Meeting
PART 3 — ASSUMPTIONS /EXCLUSIONS:
Summary of Assumptions:
Assume 3 -week lab TAT
Assume 3 -week lab TAT
• The quarterly water quality sampling events will start in November 2014.
Summary of Exclusions:
The following tasks are not included in the Scope of Work for this Agreement:
1. Survey Services
2. Preparing permit applications or paying permit fees
3. Meetings with agencies or stakeholders
Additional tasks, including but not limited to those listed above, may be added to this Work
Order by Amendment if desired by the COUNTY.
PART 4. — CONSULTANT COMPENSATION:
The COUNTY will compensate the CONSULTANT for the above services on a Lump Sum basis
per the Fee Schedule agreed upon under Contract 13 -6164 (EN) Architect and Engineering —
Schedule B.
An estimated budget for the above tasks has been established and is shown as Table 4 —
Manhour and Cost Summary. A man -hour estimate for the above Scope of Services has been
red - for-the--s l ?urpaeof establishing the maximum upset limit for this Task Work
Order not to exceed $86,091.
PAGE 4
PBSD_I'Y2015_SG OPTION.DOC
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CH21VI HILL Engineers, Inc.
5801 Pelican Bay Boulevard
Suite 505
Naples, FL 34108
Telephone: 239 -596 -1715
Fax: 239-596-2579
F1100FRIMI
ATTACHMENT B
Scope of Work
CONTRACT NO. 13 -6164 (EN)
Professional Services: Architect and Engineering
Pelican Bay Stormwater Lakes Sediment Quality Surveys
April 18, 2014
DESCRIPTION
The objective of this work order is to contract outside Consultant Engineering Services
(referred to hereafter as CONSULTANT) for the Collier County Pelican Bay Services Division
(referred to as COUNTY), to provide Stormwater Lakes Sediment Quality Surveys.
PART 1. — SCOPE OF WORK
Task 1: Sediment Quality Surveys
PBSD has expressed interest in inclusion of sediment quality surveys in the FY2015 stormwater
IakE!s monitoring program in order to improve an understanding of the distribution of copper in
pond sediments and the relationship between sediment and water column copper
concentrations. The stations surveyed by Turrell Hall & Associates in 2013 were reviewed in
relation to the stormwater lakes water quality monitoring records for the August and
November 2013 and February 2014 quarters to identify overlap in stations coverage where
elevated sediment and /or water column copper concentrations occurred during the respective
surveys. On the basis of that review, ten stations were identified for proposed inclusion in the
FY2131S monitoring program. The stations are identified in Table 1. Four of the ten proposed
stations were surveyed by Turrell Hall & Associates and also exhibited elevated copper
concentrations during the referenced water quality monitoring quarters. Monitoring of these
ten stations will allow temporal comparisons of the four applicable stations' data with the
information generated by the 2013 study, while data produced in FY2015 will provide
information to support the assessment of sediment — water column relationships.
Sampling of sediments from the indicated stations will be conducted during two of the four
quarters during the FY2015 administrative period. Unless otherwise modified, the monitoring
will be done during one wet season quarter and one dry season quarter in order to support
review of the data with respect to seasonality in key physical [/chemical conditions documented
through the water quality evaluations and associated documentation of field conditions for the
quarter preceding the time of sampling. The CONSULTANT will collect three (3) sediment
samples from the deepest portion within each lake and composite them into a single sample
.�..�
PBSD PY2015 SG OPTION.DOC PAGE 1
per lake. Two additional similarly collected composite samples will be collected per sampling
event as duplicate samples for quality assurance /quality control for a total of 12 sediment
samples during each survey. Two additional equipment blank samples will also be analyzed
during each survey.
At one of the sediment sampling locations in each lake, a water column profile of the dissolved
oxygen, temperature, specific conductance, pH, and redox potential will be evaluated using
appropriate field instrumentation; measures will be taken at 1 -foot intervals from just below
the water surface to just above the lake sediment surface. This will define whether the lakes
exhibit physical stratification, and the information produced will be used to characterize the
dominant forms of copper likely present in the water column.
TABLE 1
10 Lakes Included for Sediment Evaluations
PePcon Bay Stormwater Lakes Consultation Services
Basin No. Station ID Station Name
1 1-4 * Crayton
1 -5 Registry S
2 2 -4 Club 4
2 -5 * Club 7
3 3 -4 Pelican 9
3 -6 Valencia
4 4 -7 Pelican 6
4 -10 * Pelican 3
5 5 -2 LAmbience
5 -8 * Bay Colony WN
Note: * = Stations included in the 2013 sediment study by Turrell Hall & Associates
The, procedures for sediment sample collection, handling, and analysis will follow applicable
Standard Operating Procedures published by the Florida Department of Environmental
Protection (FDEP). It is anticipated that sediment samples will be collected using a coring
device designed to retrieve an undisturbed sediment sample from the upper visual boundary;
the sample to be retained will represent a composite of the upper 6 -inch layer below the
sediment surface. Field meter probes will be used to characterize pore water sulfides and redox
potential of the samples retrieved. Samples retained will be analyzed for the parameters listed
in Table 2 using a laboratory appropriately certified in Florida through NELAP.
To characterize the potential concentration gradients and potential for diffusion and for
complexation by copper with natural compounds, supplemental water samples will be
collected from one of the sediment sampling locations in each lake for laboratory analysis.
Water samples will be collected from two depths prior to sediment sample collection: 1 foot
below the pond water surface, and 1 foot above the pond sediment surface. Four additional
PBSD PY2015 SG OPTION.DOC PAGG 2
samples will be collected for quality assurance /quality control, for a total of 24 water quality
samples.
Water samples will be analyzed in the laboratory for the presence and abundance of
compounds that can potentially complex with copper and thereby affect its potential for
mobilization from the sediments. Analytes to be sampled by the lab include: alkalinity,
hardness, sulfate, sulfide, nitrate +nitrite nitrogen, total phosphorus, orthophosphate, calcium,
sodium, iron, and total and dissolved organic and inorganic carbon.
TABLE 2
Analytical Parameters and Methods for Sediment Evaluations
Pelican Bay Storm water Lakes Consultation Services
Parameter Method
Aluminum EPA 6010
Calcium EPA 6010
Copper EPA 6010
Iron EPA 6010
Total Kjeldahl Nitrogen EPA 351.2
Total Phosphorus EPA 365.4
Sulfur ASTM D -4239
Bulk density ASTM D263
Grain size ASTM D422
Percent moisture ASTM D2216
Percent solids ASTM D2216
Sulfate EPA 9056
Pore water sulfide EPA 376.1
Nitrate EPA 9056
Carbonate S M 2 3 2 0 B
TOC EPA 9060
Loss on Ignition (LOI) EPA 1010
Redox potential Field Measurement
Data generated by these FY2015 activities will be compared with the relevant results of the
Turrell Hall & Associates 2013 sediment survey, and also will be reviewed in relation to the
respective quarterly stormwater lakes water quality data sets to investigate if any quantitative
relationships can be identified between sediment and water column copper concentrations
and the other supplemental parameters monitored inclusive of sediment and water iron,
sulfate, nitrate and carbonate; sediment redox potential; water column oxygen profile; organic
PHSC_PY2015 SCOPTION.DOC PAGE
content; sediment type and grain size. Tabular and /or graphical data summaries will be
incorporated into the quarterly reports and briefing materials generated as described under
the stormwater lakes water quality monitoring program.
Task 2: Quarterly Reporting /Consultation Services
Each quarter's investigations will be reported to PBSD through submittal of the following
deliverables:
The CONSULTANT will prepare a brief technical memorandum (TM) to summarize the
results for each quarter's monitoring activities. The TMs will include tabular and /or
graphical summaries of the quarter's data and will compare the quarter's results with
relevant historical monitoring records. The laboratory reports, field notes, and chain of
custody forms will be provided as appendices to each TM.
o The CONSULTANT will present a briefing to the PBSD Board, or alternatively to one of
the PBSD Advisory Committees (e.g., Landscape and Water Management Committee,
Clam Bay Committee, other), on the key findings from each quarterly sampling event.
Each of the briefings (one per quarter) will be based on the information presented in
the corresponding TM.
PART 2. — PROJECT SCHEDULE:
The schedule for sampling events and major deliverables is summarized in Table 3. The
sediment surveys are currently proposed to be executed in Quarters 2 (dry season) and 4 (wet
season).
TABLE 3
Project Schedule
Pelican Bav Stormwater Lakes Consultation Services
Activity /Deliverable
Target Completion Date Notes
Quarter 2 Sampling
February 2015
Quarter 2 TM
March 2015 Assume 3 -week lab TAT
Quarter 2 Presentation
April Board Meeting
Quarter 4 Sampling
August 2015
Quarter 4 TM
September 2015 Assume 3 -week lab TAT
Quarter 4 Presentation
October Board Meeting
Note: TAT = laboratory turn- around time for delivery of analytical results.
PART 3. — ASSUMPTIONS /EXCLUSIONS:
Summary of Scoping Assumptions:
• The quarterly water quality sampling events will start in November 2014 to continue
PESD. FY2015_SG OPTIORDOC PAGE 4
the quarterly schedule followed in prior monitoring administrative periods. The
sediment sampling will coincide with two of the quarterly water quality sampling
events (unless otherwise modified, these will represent one wet season and one dry
season). Sediment surveys will only be authorized as an augmentation of the
stormwater lakes water quality monitoring program.
The quarterly TM deliverables will be submitted as electronic deliverables in pdf
format. The TMs will be provided as drafts; and then finalized to address PBSD review
comments received in writing within ten (10) business days of draft receipt.
a The quarterly briefings will be supported by Power Point -based slide materials to be
submitted with sufficient lead time to allow them to be incorporated into the
applicable Board or Committee agenda package.
Recommendations for the FY2016 stormwater lakes investigations will be provided to
PBSD during the spring of 2015 in order to provide further investigations refinement
supporting management decision making in relation to copper issues in Clam Bay.
Summary of Exclusions:
The following services are not included in the Scope of Work forthis Agreement:
1. Professional surveying services
2. Preparation of permit applications; payment of applicable associated permit
fees
Meetings with agencies or stakeholders external to PBSD.
If additional services beyond those detailed in this work authorization are needed during the
course of the FY2015 activities, PBSD may authorize such supplemental services through formal
work order amendment addressing scope and budget allocation.
PART 4. — CONSULTANT COMPENSATION:
The COUNTY will compensate the CONSULTANT on a Lump Sum basis per the Fee Schedule
agreed upon under Contract 13 -6164 (EN) Architect and Engineering — Schedule B.
The authorized budget for the above tasks is based upon the cost estimate shown as Table 4 --
Manhour and Cost Summary. The labor and expense estimate for the above Scope of Services
has been pre red for the-soie -purer of establishing the maximum upset limit for this Work
Order whic is not to exceed $55,900 yithout written authorization from the County.
$
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CH2M HILL Engineers, Inc.
5801 Pelican Bay Boulevard
Suite 505
Naples, FL 34108
Telephone: 239- 596 -1715
Fax: 239-596-2579
DRAFT
ATTACHMENT C
Scope of Work
CONTRACT NO. 13 -6164 (EN)
Professional Services: Architect and Engineering
Pelican Bay Stormwater Lakes Water Treatment Technology Review
April 18, 2014
DESCRIPTION
The objective of this work order is to contract outside Consultant Engineering Services
(referred to hereafter as CONSULTANT) for the Collier County Pelican Bay Services Division
(referred to as COUNTY), to provide Stormwater Lakes Water Treatment Technology Review
services.
PART 1. — SCOPE OF WORK
Task 1• Preliminary Treatment Technology Assessment
A review of copper treatment technologies which may be applicable for reducing copper
concentrations in Pelican Bay stormwaters prior to their release to Clam Bay is needed in order
to prepare for future discussions with the Florida Department of Environmental Protection
(FDEP), The CONSULTANT will prepare a brief technical memorandum describing the potential
performance and configuration of selected technologies intended to remove copper from the
pond water. The purpose of the analysis will be to provide the Pelican Bay Services Division
(P13SD) a preliminary understanding of commonly accepted treatment technologies and their
conceptual cost ranges.
The treatment technology would be assessed as a process to be applied to a recirculated side
stream or to a single pass treatment during periods when pond waters are flowing. Three
technologies will be considered in the assessment:
1) Ion exchange using chelation resins for adsorption and sequestration;
Treatment wetlands for capture and treatment by combined biological and chemical
processes; and
/-3/)' Passive biochemical reactors using peat or compost as a media for adsorption and
complexation with biogenic sulfide.
For each technology, the key removal processes will be described and treatment effectiveness
PAGE 1
PBSD_FY2015 SG OPTION,DOC
will be estimated using available water quality data. Benefits and constraints of the
technologies will be described and summarized, including the possible effects of pond water
chE!mistry on performance and maintenance. Approximate area requirements and
maintenance effort will be described. Conceptual rough - order -of- magnitude costs will be
developed for each technology. Recommendations for possible pilot studies will be provided
and conceptual descriptions of pilot study area, flow, power and other requirements will be
provided.
The memorandum will be prepared in an executive summary format, with supporting technical
materials and analyses attached as appendices, tables and figures. The memorandum will be
submitted in a draft format for review by PBSD. The CONSULTANT will present the results to
thE: Landscape and Water Management Committee or similar meeting to be specified by PBSD.
A final version of the memorandum will be provided that will include responses to comments
and suggested revisions provided by PBSD.
PART 2. — PROJECT SCHEDULE:
The schedule for the proposed services is outlined in Table 1
TABLE 1
Project Schedule
Pe `icon Bay Stormwater Lakes Consultation Services
Activity /Deliverable Target Completion Date Notes
Treatment Technology
Summary
April 2015 Board Meeting
PARTS — ASSUMPTIONS /EXCLUSIONS:
Summary of Scoping Assumptions:
Assume NTP by October 1,
2014
The TM deliverable will be submitted as an electronic deliverable in pdf format. The TM
will be provided as a draft; and then finalized to address PBSD review comments
received in writing within ten (10) business days of draft receipt.
Summary of Exclusions:
The following services are not included in the Scope of Work for this Agreement:
1. Professional surveying services
Preparation of permit applications; payment of applicable associated permit
fees
Meetings with agencies or stakeholders external to PBSD.
If additional services beyond those detailed in this work authorization are needed during the
course of the FY2015 activities, PBSD may authorize such supplemental services through formal
work order amendment addressing scope and budget allocation.
PART 4. — CONSULTANT COMPENSATION:
The COUNTY will compensate the CONSULTANT on a Lump Sum basis per the Fee Schedule
PAC E "2
PBD_FY2015_SG OPTION.DOC
agreed upon under Contract 13 -6164 (EN) Architect and Engineering — Schedule B.
The authorized budget for the above tasks is based upon the cost estimate shown as Table 2 —
Manhour and Cost Summary. - Thelabor and expense estimate for the above Scope of Services
has been pared for the sole elpose of establishing the maximum upset limit for this Work
Order ich is not to exceed $20,66i�ithout written authorization from the County.
/J
PBSO FY2015_SG OPTION^00C . - PAGE 3
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CH2M HILL Engineers, Inc.
5801 Pelican Bay Boulevard
Suite 505
Naples, FL 34108
Telephone: 239- 596 -1715
Fax: 239- 596 -2579
DRAFT
ATTACHMENT D
Scope of Work
CONTRACT NO. 13 -6164 (EN)
Professional Services: Architect and Engineering
Pelican Bay Stormwater Lakes Subject Matter Expert Consultation Services
April 18, 2014
INTRODUCTION
Water quality- focused investigations by the Florida Department of Environmental Protection
(FDEP) have raised concerns regarding copper concentrations within Clam Bay. Studies have
documented concentrations which exceed the surface water quality standard for copper in
Class II waters (estuarine /marine waters). It has been hypothesized that these elevated copper
concentrations may reflect the cumulative effects of stormwater discharges into Clam Bay from
Pelican Bay.
Water quality monitoring specifically of the Pelican Bay stormwater lakes was initiated by the
Pelican Bay Foundation in November 2011 to support characterization of the general water
quality conditions within representative lakes in each basin, and to assess if elevated
concentrations were related to specific Pelican Bay basins and /or to specific lakes within the
basins. The cumulative monitoring records available to date indicate that copper
concentrations in most of the lakes in five of the six PBSD basins are elevated and likely reflect
the historical routine use of copper sulfate for algal bloom control in the lakes. Monitoring in
August and November 2013 and February 2014 has confirmed that elevated concentrations
have persisted suggesting that copper mobilization from the lake sediments back into the
water column appears to be occurring through some combination of physical, chemical, and /or
biological processes.
During a March 31, 2014, meeting of the Landscape and Water Management Committee, the
conclusion reached was that the PBSD should retain a firm capable of providing relevant
Subject Matter Experts (SMEs) who could provide high -level technical and regulatory guidance
as additional water and sediment quality data is generated in the future by ongoing monitoring
programs, and as PBSD prepares for negotiations with the FDEP regarding possible
management strategies focused on copper reductions in waters delivered to Clam Bay. This
work order addresses the scope and budget for limited level -of -effort based support services in
the general areas of water quality treatment to reduce copper concentrations in urban
stormwaters.
"7—' PAGI, 1
PBSD_PY2D1.5 SG OPTiON.DOC
PART 1. — SCOPE OF WORK
Task 1• Subject Matter Expert Consultation Services
The CONSULTANT will prepare for and facilitate one technical working meeting with PBSD
representatives each quarter during FY2015. These technical working meetings will consist of a
half day workshop during which the CONSULTANT will provide two (2) Subject Matter Experts
(SMEs) to meet with PBSD and discuss how the ongoing lake water quality and related
monitoring studies included in the FY2015 monitoring program are pertinent to the improved
understanding of the technical and /or regulatory issues faced by PBSD during future
interactions with the FDEP regarding Pelican Bay's copper issues. The SMEs will be drawn from
the experts available through the CONSULTANT's staff resources generally based in South
Florida.
The CONSULTANT will prepare Power Point slide materials to help facilitate the discussions, if
needed, and a meeting summary memorandum will be submitted by the CONSULTANT after
each of these workshops to document meeting participants, topics discussed, and any follow
up action items identified for PBSD staff. The meeting summary memorandum will be
submitted in electronic format within five (5) business days of each technical working meeting.
PART 2. — PROJECT SCHEDULE:
SNIE consultation services will be provided under a schedule to be defined at the time of work
order scope finalization. However, for planning purposes, the tentative schedule for the
workshops described in the scope of work is provided in Table 1.
TABLE 1
Project Schedule
Pelican Bov Stormwater Lakes Consultation Services
Activity /Deliverable Target Completion Date Notes
Quarter 1 Workshop
Quarter 2 Workshop
Quarter 3 Workshop
Quarter 4 Workshop
December 2014
March 2015
June 2015
September 2015
Meeting summary memorandum to follow each workshop by 5 business days.
PART 3. — ASSUMPTIONS /EXCLUSIONS:
Summary of Scoping Assumptions:
Subject Matter Experts (SMEs) who may participate in technical work meetings with
PBSD will be drawn from the CONSULTANT's South Florida offices (within a 3 hour
driving distance). If SMEs from beyond this geographic range are to participate, they
will either do so via conference call /live meeting, or additional travel arrangements will
need to be authorized in advance of any such necessary travel.
a Recommendations for the FY2016 Stormwater lakes investigations will be provided to
PBSD-FY2015-SG OPTION.DOC PAGE: 2
PBSD during the spring of 2015 in order to provide further investigations refinement
supporting management decision making in relation to copper issues in Clam Bay.
Summary of Exclusions:
The following services are not included in the Scope of Work for this Agreement:
Professional surveying services
Preparation of permit applications; payment of applicable associated permit
fees
3. Meetings with agencies or stakeholders external to PBSD.
If additional services beyond those detailed in this work authorization are needed during the
course of the FY2015 activities, PBSD may authorize such supplemental services through formal
work order amendment addressing scope and budget allocation.
PART 4. — CONSULTANT COMPENSATION:
The COUNTY will compensate the CONSULTANT on a Lump Sum basis per the Fee Schedule
agreed upon under Contract 13 -6164 (EN) Architect and Engineering — Schedule B.
The authorized budget for the above tasks is based upon the cost estimate shown as Table 2 —
Manhour and Cost Summary. The labor and expense estimate for the above Scope of Services
has been prepar-ed-fot tTie -so e p ose of establishing the maximum upset limit for this Work
Order wh' ' is not to exceed $32, without written authorization from the County.
PBSD_FY2015 SG OPTION.DOC PAGE 3
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McCaughtryMary
From: Tom Cravens [nfn16799 @naples.net]
Sent: Thursday, May 15, 2014 4:26 PM
To: McCaughtryMary
Subject: Landscape and water Management meeting
Greetings Mary,
Could you please print the following material and have copies for the meeting on Friday.
"5 PB members (Tom Cravens PBSD, Linda Roth MAG, Lilias Bruce MAG, Ted Wood and myself
PBPOA), met at the rear parking lot of the Community Centre as planned by PBPOA and Geoff
Noble, on Mon, April 28, 2014. I took samples of water and algae and duck weed from the
large pond behind the CC, for testing in the tilapia fish tanks by Echo's resident
Aquaculture specialist, Mr. Craig Bielema.
We departed at 1:00pm arriving at 2:00pm at the Echo Aquaculture centre where we were met by
Craig to repeat the testing completed for me alone earlier on April 2.
After much discussion Craig deposited a handful of PB algae on the surface of the fish tank
(approx. Oft. square and Oft. deep) containing about 50 seven inch tilapia. The algae was
consumed in about 3
minutes. This was repeated with the same results 3 times. Then duck
weed was sprinkled onto the surface but the fish were more hesitant to feed on it, suggesting
that algae was their preference. (All agreed that it was not necessary to ask Craig to net a
fish for trial in our 5 gal. pail of PB pond water.) We then reviewed the adjacent duck pond
where tilapia appeared to be thriving with other fish species (and the ducks).
Before Tom and Ted then left independently for Naples at about 3pm *we dumped the balance of
the small bucket of algae onto the water *and the remaining 3 were escorted on a quick tour
around the eco -farm where different crops were demonstrated for substance farming in a
variety of climate conditions. *When we returned to the fish tank about 45 minutes later all
of the algae and duck weed had been completely consumed.*
*Summary:* It would appear that introducing tilapia into PB ponds
could consume unsightly algae and duckweed blooms growing on the surface of our ponds. Craig
advised that the Blue Tilapia species of tilapia
demonstrated here do not require a special license for use in Florida.
Echo might be willing to sell limited fish stock to PB.
It might be worthwhile to ask Craig to visit us in PB to review our upland system of ponds
and make recommendations on how best to proceed, if it is decided to experiment with blue
tilapia for removal of algae
and duckweed from our ponds. Geoff
*
*
*Geoffrey C. Noble *, 6825 Grenadier Blvd., #1405, Naples, FL. USA 34108, Phone 239 591 8550,
/gcnobleone(@hotmail.com < mailto :gcnobleone(@hotmail.com>/
Thanks Mary,
Tom
Tom Cravens