Final CMT Implementation Services RFP

March 9, 2022
REQUEST FOR PROPOSAL
Tahoe Keys Property Owners Association (TKPOA) hereby requests proposals for
Tahoe Keys Lagoons Aquatic Weed Control Methods Test Project
IMPLEMENTATION SERVICES
PROPOSALS MUST BE RECEIVED BY:
Kirk Wooldridge, General Manager
TAHOE KEYS PROPERTY OWNERS ASSOCIATION
356 Ala Wai Boulevard
South Lake Tahoe, CA 96150
SUBMITTAL DEADLINE: March 29, 2022, 5:00pm

March 9, 2022
Final TKPOA CMT Implementation Service RFP Page 1
GENERAL PROJECT INFORMATION
REQUEST FOR PROPOSAL FOR Tahoe Keys Lagoons Aquatic Weed Control Methods Test Project
Implementation Services
SOUTH LAKE TAHOE, CALIFORNIA
I. INTRODUCTION
The Tahoe Keys Property Owners Association (TKPOA) hereby requests proposal(s) for the Tahoe Keys
Lagoons Aquatic Weed Control Methods Test Project (CMT) Implementation Services in South Lake
Tahoe, California. A complete description of the CMT can be found at https://tahoekeysweeds.org/.
II. BACKGROUND
The Tahoe Keys is a large-scale planned community in the City of South Lake Tahoe that includes 1,528
residential properties, consisting of 1,194 single-family residences, 335 townhouse residences, and 81
Tahoe Keys Property Owners Association (TKPOA)-owned properties that include offices, swimming
pools, tennis courts, and a corporation yard. The Tahoe Keys is located in South Lake Tahoe, California.
It is situated on 372 acres of land and 172 acres of inland waterways (lagoons) that are connected to the
lake. The Tahoe Keys subdivision was constructed beginning in the 1960’s in a portion of the Upper
Truckee River Marsh. The construction included excavating the marsh soils to construct the building
areas and navigable lagoons. The Tahoe Keys is bounded by residential developments to the south, the
Upper Truckee River Marsh to the east, Lake Tahoe to the north, and Pope Marsh to the west. The storm
drain system within the Tahoe Keys, with a few exceptions, is owned and operated by the City of South
Lake Tahoe. The streets are public and are the property of the City of South Lake Tahoe.
The developer of the Tahoe Keys, and subsequently the Tahoe Keys Property Owners Association
(TKPOA), have been working to control target aquatic weeds in the lagoons since the 1970s. In recent
years, up to 90% of the wetted surface of the lagoons have been infested with aquatic weeds with the
majority being non-native, aquatic invasive plant (AIP) species. The target aquatic weeds TKPOA seeks
to control consist of one native aquatic plant and two AIP species.
The Lahontan Regional Water Quality Control Board (Lahontan) regulates TKPOA with Waste Discharge
Requirements (WDR) Order R6T-2014-0059 that necessitates control of non-point sources of pollution
to the lagoons and control of plant fragments from aquatic weed harvesting operations. The WDR
requires development of an Integrated Management Plan (IMP), which addresses water-side actions
that help control the growth of aquatic invasive plants, as well as a Non-Point Source Water Quality
Management Plan (NPS Plan), which addresses potential land-based sources of nutrients. Lahontan
also regulates the Tahoe Keys Marina under a general National Pollutant Discharge Elimination System
(NPDES) Permit for Lake Tahoe Marinas (Order R6T-2016-0038).
TKPOA has been working with Lahontan, Tahoe Regional Planning Agency (TRPA), and other
stakeholders on a project proposal entitled the Tahoe Keys Lagoons Aquatic Weed Control Methods
Test Project (CMT or Project), which recently received regulatory approvals to proceed in Spring 2022.
The Project, in part, will evaluate the efficacy of two aquatic herbicides, ultraviolet (UV-C) light

March 9, 2022
treatment, and laminar air flow (LFA) treatment for their ability to reduce the biomass of the aquatic
invasive plant species to levels that can subsequently be controlled with non-chemical control
methods.
The Project was approved and permitted by Lahontan and TRPA on January 13, 2022 and January 26,
2022, respectively. The Project is scheduled to be conducted in the Tahoe Keys Lagoons starting in April
2022 and continuing until March 2025. The CMT will be conducted consistent with TKPOA’s Application
for an Aquatic Pesticide Application Plan to Test Combinations of Aquatic Weed Control Methods
(APAP), and its amendments, that canbe foundat the followinglinks. Those documents provided below
without hyperlinks can be found in Exhibit B of this RFP.
• Waste Discharge Requirements (WDR) and NationalPollutant Discharge EliminationSystem
(NPDES) Permit for TKPOA Tahoe Keys Lagoons Aquatic Weed Control Methods Test ORDER
No R6T-2022-004 NPDES No. CA6202202 WDID NO. 6A091701001
(https://www.waterboards.ca.gov/lahontan/board_decisions/tentative_orders/2021/tkwe
edspermit.pdf)
• California Regional Water Quality Control Board, Lahontan Region Mitigation Monitoring
and Reporting Program No. R6T-0022-004], for the Control Methods Test of Herbicides and
Other Techniques to Reduce Aquatic Invasive Plants in the Tahoe Keys Lagoons for the
Tahoe Keys Property Owners Association
https://www.waterboards.ca.gov/lahontan/board_decisions/tentative_orders/2021/tkwe
edsmmrp.pdf
• FinalEnvironmentalImpact Report /EnvironmentalImpact Statement Tahoe Keys Lagoons
Aquatic Weed Control Methods Test
https://www.waterboards.ca.gov/lahontan/water_issues/programs/tahoe_keys_weed_co
ntrol/docs/feir_feis_final.pdf
• FinalEnvironmentalImpact Report /EnvironmentalImpact Statement Tahoe Keys Lagoons
Aquatic Weed Control Methods Test – Appendix B, Mitigation Monitoring and Reporting
Program
https://www.waterboards.ca.gov/lahontan/water_issues/programs/tahoe_keys_weed_co
ntrol/docs/app_b_mmrp.pdf
• Tahoe Keys Lagoons Aquatic Weed Control Methods Test Environmental Improvement
Program (EIP) Permit No. 510-101-00 (Exhibit B)
• Tahoe Keys Lagoons Aquatic Weed Control Methods Test Project Application to Test
Combinations of Aquatic Weed Control Methods (Exhibit B)
• Amendment 11
, Aquatic Pesticide Application Plan (APAP) Application for Individual
National Pollutant Discharge Elimination System (NPDES) Permit for Residual Aquatic
Pesticide Discharges to Waters of the United States from Algae and Aquatic Weed Control
Applications for the Tahoe Keys Lagoons Aquatic Weed Control Methods Test
https://www.keysweedsmanagement.org/blog/aquatic-pesticide-application-plan-apap-
amendment-1-for-the-control-methods
1
This Amendment 1 to the APAP was submitted to Lahontan on February 28, 2022 for public review following
Lahontan approval of the CMT Project and NPDES Permit Order No. CA6202202 WDID 6A91701001 (NPDES Permit).

March 9, 2022
III. PROJECT SENSITIVITY
The CMT is the first approved application to use aquatic herbicides, specifically for the control of
invasive aquatic weeds in the Tahoe Basin. The Project is the result of collaborations over the past
severalyears involvingTKPOA, regulatory agencies, the League to Save Lake Tahoe (The League), Tahoe
Resource Conservation District (TRCD), environmental groups and homeowners, the Tahoe Science
Advisory Council (TSAC), and other leading scientists, and the public through extensive environmental
review and analysis. While the Project implementation is primarily a collaboration of TKPOA and TRPA,
TKPOA holds the specific NPDES permit issued by the Lahontan Board on January 13, 2022.
A rigorous and data-intensive monitoring program was developed for the CMT, including separate,
highly detailed, and extensive monitoring components for water quality, herbicide active ingredient
and degradant levels, efficacy, and non-target effects. Further, as part of this detailed monitoring
program, maintaining and adhering to protocols and scheduling associated with each monitoring
parameter, especially for herbicide treatments, is crucial. Adherence to identified best management
practices (BMPs) is mandatory to prevent “cross contamination” of treatments.
IV. SOLICITATION OVERVIEW
Table 1 below provides an overview of all major monitoring Tasks proposed for the CMT, year(s) in
which each activity will occur, and the identified responsible party. Work being conducted or
contracted separately by TRPA (in italics) is included so potential bidders are aware of all aspects of
the CMT and identify any need for coordination, or ability to leverage other efforts. Those tasks will
be part of an RFP being released by TPRA. Tasks highlighted in blue are included in this RFP (refer to
Table 2 and Exhibit A for a list of all scopes included in this RFP).
Table 1. CMT Monitoring Activities
Monitoring Activity Year(s)
Responsible
Party
Entity Releasing
RFP
Standard Water Quality Monitoring (YSI) 1 – 3 TKPOA N/A
Hydroacoustic Scanning 1 – 3 TKPOA N/A
Cyanobacteria Monitoring 1 – 3 TKPOA N/A
Herbicide & RWT Dye Application 1 Contractor TKPOA (this RFP)
Lanthanum Modified Clay Application & Monitoring 1 Contractor TKPOA (this RFP)
Well Water Monitoring 1 Contractor TKPOA (this RFP)
Herbicide & RWT Dye Monitoring 1 Contractor TRPA
Macrophyte Point Intercept Sampling 1 – 3 Contractor TRPA
Nutrient Grab Water Quality Monitoring 1 - 3 Contractor TRPA
Benthic Macroinvertebrate (BMI) Sampling 1 - 3 Contractor TRPA
Continuous Water Quality Monitoring 1 - 3 Contractor TRPA
Laboratory Services – Herbicide Residues / Degradants 1 Contractor TRPA
Laboratory Services – Lanthanum Modified Clay 1 Contractor TRPA
Laboratory Services – Nutrient Grab and Cyanobacteria 1-3 Contractor TRPA
Note: Those activities marked ‘N/A’ for Entity Releasing RFP shall be completed internally by TKPOA, not outsourced.
Potential bidders may bid on any or all tasks associated with this RFP or tasks that will be included in
an RFP released by TRPA.

March 9, 2022
TRPA shall release a separate RFP will be released for the TRPA-contracted activities and services (Table
1). A summary of these separate activities / services is provided below.
• Herbicide and RWT Dye Monitoring: Request for proposals for a contractor to collect samples
and perform an analysis for herbicides in water and sediment. Additionally, the contractor
would conduct monitoring of the fluorescent dye Rhodamine WT, which will be applied in
tandem with each herbicide application to assess potential movement of herbicides. There are
a total of 13 to 15 sites (Figures 1 and 2) to which herbicides will be applied.
• Nutrient Grab Water Quality Monitoring: Request for proposals for a contractor to conduct
water quality physical grab sampling for nutrients as described in TKPOA’s Aquatic Pesticide
Application Plan (APAP) – Amendment 1 (Amended APAP), submitted February 28, 20222
.
• Benthic Macroinvertebrate (BMI): Request for proposals for a contractor to conduct
monitoring and follow specifics detailed in the NPDES Attachment E, FEIR/EIS Attachment B,
and TKPOA’s Amended APAP.
• Continuous Water Quality: Request for proposals for a contractor to place sensors and
download collected real-time DO and temperature data from stationed miniDOT loggers and
provide any maintenance as needed. Data will be used to track diurnal changes in the water
column consistent with the NPDES Attachment E, FEIR/EIS Attachment B, and TKPOA’s
Amended APAP.
• Macrophyte Point Intercept Sampling: Request for proposals for a contractor to perform
sample collection and monitor for percentage of species occurrence, relative abundance, plant
health condition, and presence/absence.
• Laboratory Services – Herbicide Residues / Degradants: Request for proposals for laboratory
testing services for herbicide residues and degradants in both water and sediment composite
samples where herbicides are applied.
• Laboratory Services – Lanthanum Modified Clay: Request for proposals for laboratory
testing/analysis services in both water and sediment composite samples where lanthanum-
modified clay (LMC) may be applied. This is a contingent activity dependent on phosphorus
concentrations increasing beyond water quality objectives where herbicides are applied.
• Laboratory Services – Nutrient Grab and Cyanobacteria: Request for proposals for
laboratory testing services for water column nutrient grabs and collect and analyze samples for
cyanotoxins.
2
This Amendment 1 to the APAP was submitted to Lahontan on February 28, 2022 following Lahontan approval of the CMT
Project and NPDES Permit Order No. CA6202202 WDID 6A91701001 (NPDES Permit). The document can be found at
www.keysweedsmanagement.org under CMT Project and Recent Updates.

March 9, 2022
For more information regarding this RFP, please refer to https://www.trpa.gov/contact/request-for-
proposals/. The TRPA RFP is anticipated for release the week of March 7, 2022.
V. PROJECT DESCRIPTION AND SCOPE OF WORK
Project Description
The CMT will test standalone treatments using herbicides, UV-C light, and LFA, and combination
treatments of herbicide and UV-C light in the first year. These methods will be followed in Years 2 and 3
of the CMT with non-herbicide follow-up methods, including spot treatments using bottom barriers,
diver-assisted suction/hand pulling, and UV-C treatments. Follow-up methods would be dependent on
the target plants present, size of infestation, and location of infestation within test sites based on the
success of Year 1 treatments. Figures 1 and 2 show the currently identified areas of the Tahoe Keys that
will receive treatment and what types of treatment will be deployed in each area. Final test site
selection will be identified and approved by Lahontan in April 2022.
Figure 1. Proposed CMT Treatment Areas

March 9, 2022
Figure 2. Proposed CMT Treatment Areas, New Sites 13, 14, 19, 20 and 21
All monitoring and data collection for the tests shall comply with the Lahontan and TRPA approvals and
permits for the Project.
Additional information on the history and background of the aquatic weed problem in the Tahoe Keys
lagoons, ongoing TKPOA weed control measures, detailed reports and evaluations, and other
resources/maps can be found on the Project website (www.keysweedsmanagement.org).
Project Logistics
TKPOA will assign launching and staging areas at appropriate locations for accessing CMT treatment
test sites (Figure 3). Only the designated areas are to be used for CMT associated treatment and/or
monitoring activities.
Selected Contractors are responsible for having all identified application / monitoring equipment (see
Exhibit A.1.1-A.1.5) and associated materials in preparation for sampling activities, unless otherwise
agreed upon in writing with TKPOA.

March 9, 2022
Figure 3. Location of Boat Ramps and Staging Area
All vessels to be used by Contractors (outside those provided by TKPOA), before launching, must be
inspected by TRPA and TKPOA staff and have the following items completed:
• Proper and current state registration; other Lake Tahoe launch permit stickers as required.
• CG approved, properly working personal safety gear (PFDs for each occupant, throwable-life
buoy/ring)
• General hull integrity and drain plugs inserted
• Proper propulsion systems (e.g., 4-cycle, electric, or approved emission control systems)
• Fore and aft Docking lines and at least one appropriately sized anchor with 50 ft of rope.
Proof of completion will be required in writing prior to start of any activities.
Further, for Contractor supplied vessels, proper off-site washdown is required, as well as ensuring that
herbicide or other contaminated water in the vessel is properly removed, stored, and disposed of in
accordance with the product labeling and California and Federal requirements, both prior to and
following CMT-related activities.

March 9, 2022
Scope of Work
The focus of this RFP is the monitoring and support services required to implement the Project
described above. More details are provided in the Application to Test Combinations of Aquatic Weed
Control Methods and its amendments3
. The services required to implement the CMT are shown in Table
2 along with the anticipated contracting entity (TKPOA or TRPA).
Individual scopes of work for the services to be contracted by TKPOA are attached in Exhibit A. Table 2
provides an index of all included scopes of work found within Exhibit A. Proposals may be submitted for
multiple services except that an entity proposing on Herbicide and RWT Dye Application may not
propose on Herbicide and RWT Dye Monitoring to ensure third party testing. All services shall be
provided in compliance with the permits in Exhibit B and consistent with the master Project
implementation schedule provided in Exhibit C. Exhibit D provides herbicide labels and Exhibit E
provides the lanthanum modified clay label. An example of TKPOA’s contracting agreement is provided
in Exhibit F. The Final Spill Prevention and Response Plan for the CMT is provided in Exhibit G.
Exhibit A: Individual Scopes of Work
Exhibit B: Applicable Regulatory Permits and Project Approval Conditions
Exhibit C: Master Project implementation Schedule
Exhibit D: Herbicide Labels (Endothall and Triclopyr)
Exhibit E: Lanthanum Modified Clay Label (Phoslock)
Exhibit F: TKPOA Contracting Sample Agreement
Exhibit G: Tahoe Keys Property Owners Association Tahoe Keys Lagoons Aquatic Weed Control
Methods Test Spill Prevention and Response Plan
Table 2. Implementation Services Included in Exhibit A
Implementation Service Contracting Entity Exhibit No. Fee4
Herbicide and Rhodamine Water Tracer (RWT) Dye Application TKPOA A.1.1
Lanthanum Modified Clay (LMC) Application and Monitoring TKPOA A.1.2
Well Water Monitoring TKPOA A.1.3
Environmental Program Manager and Spill Response TKPOA A.1.4
Turbidity Curtain Installation and Removal TKPOA A.1.5
VI. PROPOSAL REQUIREMENTS
TKPOA volunteers, staff, and consultants will evaluate the proposals received and assess the
qualifications, experience, and strength of the proposer’s Project team in terms of ability to produce a
high quality, practical work product on or before the completion deadline. The cost to TKPOA for
performing the work will be important but is not an overriding consideration.
3
All applicable documents that provide specific, detailed information on Project requirements can be found under Section II,
Background or Exhibit B of this document.
4
This column to be completed and submitted with proposals. See Section VI, Proposal Requirements.

March 9, 2022
Upon the selection of highest ranked proposer, TKPOA will negotiate an Agreement reflecting the terms
and conditions of the Project including TKPOA’s insurance and indemnification requirements. In the
event an agreement cannot be reached, TKPOA will approach lower ranked proposers in order of their
ranking.
All submittals will become the property of TKPOA upon submission. The TKPOA will make all submittals
public information for review by any interested parties following the selection process and contract
execution with the successful bidder.
TKPOA reserves the right to request modification of or to reject any or all proposals.
Table 3 provides a schedule for implementation services contracting.
Table 3. Project Schedule5
Schedule Date/Time
Release Request for Proposal (RFP) March 9, 2022
Questions on RFP / SOWs Due March 16, 2022
RFP Addendum 1: Q & A March 22, 2022
Bid Submittals Due March 29, 2022 5:00 pm
Bid Opening March 30, 2022
Bid Analysis and Recommendations April 1, 2022
TKPOA Board Approval(s) to Award April 7, 2022
Contract Awards April 8, 2022
Project Begins See master schedule in Exhibit C
Complete Contract Scope of Work See master schedule in Exhibit C
VII. PROPOSAL REQUIREMENTS
The proposal shall contain 8 ½ x 11 sheet sizes. The proposal shall be limited to no more than 25
pages and follow the outline below:
• Transmittal Memorandum
Submit a transmittal memorandum including appropriate contact information along with
email address(s), company type, and must be signed by proposer’s authorized representative.
A statement is required that the proposal shall remain effective for 180 days from the date
submitted.
• Section 1 – Scope of Work
Describe your approach to providing the Scope of Services described in this RFP in a high
quality, cost-effective, environmentally sound manner that will meet the CMT Project
objectives and schedule. Demonstrate a thorough conceptual and technical understanding of
the purpose and scope of the Project relative to the scope(s) covered by the proposal. If
5
TKPOA Board of Directors (BOD) meetings occur monthly. Dates for meetings and contract approval may change due to
timing of BOD meetings.

March 9, 2022
planning to contract out for any services in the Scope of Services, identify which items from
those listed in Exhibit A. Section 1 shall include a schedule for the proposed services that
assumes a Project start date (date of first herbicide application) of May 23, 2022. The timing of
herbicide application is dependent on water temperatures in the lagoons, inflow of water into
the West Lagoon fromLake Tahoe proper, and presence of plants for treatment. Herbicides may
be applied between May 23, 2022 and June 15, 2022.
All proposals shall include in Section 1 acknowledgement of specific Lahontan and TRPA Final
EIR/EIS, Mitigation Monitoring and Reporting Program, and permit provisions (Exhibit B)
applicable to the proposed scope of work.
• Section 2 – Relevant Experience and Expertise
Provide an overview of your experience with similar projects and comparable work. Describe
your ability to coordinate with both field personnel and project managers.
• Section 3 – Client References
Provide contact information for representatives of three (3) former (in the last 5 years) or
current clients for whom your firm or Project team members have performed similar services.
TKPOA will contact these references to verify past performance and capability of the proposer.
• Section 4 – Project Team
Explain why TKPOA should select your firm for this Project. Provide a staff organization chart,
including subconsultants, identifying the Project Manager and key team members including
field leads (if applicable). Describe the roles, qualifications, and responsibilities to be fulfilled
by each staff member or subcontractor. Resumes are not required but may be included (3-page
maximum each) as an attachment to proposals.
• Section 5 – Fee Proposal
Provide an itemized cost for each individual scope of work (see Exhibit A), including staff labor
rates as well as any other additional costs. Rate sheets shall identify term expiration date for
the proposed scope(s). If multiple services are part of your proposal, the associated fee per
service shall be indicated in Table 2 (see Section V above).
• Section 6 – Quality Assurance and Control; Conflicts
Describe your approach to quality assurance and control for your firm’s performance as well as
any performance guarantees you offer. Identify all current and reasonably foreseeable actual
or potential professional conflicts that could hinder provision of the requested services and
propose means of managing any such conflicts.
• Section 7 – Contract and Insurance Requirements
All successful proposers will be required to execute a contract shown in Exhibit F attached
hereto and to meet the insurance requirements of the contracting entity (TKPOA). Please
indicate your firm’s willingness and ability to comply with these requirements or describe any
exceptions that your firm requests. Alterations or changes to the agreement which were not in
the proposer’s response may not be made after the selection of the proposal. This includes

March 9, 2022
alterations, exceptions, or changes to the insurance and indemnity provisions. By requiring
these requests up front, TKPOA can compare all respondents on an equal footing.
TKPOA may reject a proposal as non-responsive for failure to provide all information requested in this
RFP. TKPOA may reject any or all proposals with or without cause at its discretion.
An overall CMT Project schedule with anticipated milestone field dates are presented in Table 4.
Application of herbicides may vary from the date provided below. Final application date will be
identified based on Lahontan’s approval in April 2022, but is expected to occur between May 23, 2022
and June 15, 2022.
Table 4. Preliminary Field Start Dates for CMT Year 1 Scopes of Services
Implementation Service Field Start Date
Herbicide and Rhodamine Water Tracer (RWT) Dye Application May 23, 2022
Lanthanum Modified Clay (LMC) Application and Monitoring (contingency) TBD
Well Water Monitoring May 16, 2022
On-Call Hazmat Response May 23, 2022
Portable Active Treatment System (GAC) for Herbicide Spill Removal May 23, 2022
Turbidity Curtain Installation/Removal April 25, 2022/June 27, 2022
Herbicide and RWT Dye Monitoring May 16, 2022
Nutrient Grab Water Quality Monitoring April 23, 2022
Benthic Macroinvertebrate (BMI) May 9, 2022
Continuous Water Quality April 23, 2022
Laboratory Services – Herbicide Residues / Degradants May 9, 2022
Laboratory Services – Lanthanum Modified Clay May 23, 2022
Laboratory Services – Nutrient Grab and Cyanobacteria May 23, 2022
VIII. PROPOSAL SUBMISSION
Proposals must be submitted via email only no later than 5:00 pm, local time, on March 28, 2022. Send
proposals to TKPOA Contact listed in Section XI of this document.
It is the responsibility of the proposer to assure that the proposal is received prior to the deadline date
and time. Proposals received after the submission deadline will not be accepted.
Proposer maywithdrawitsproposalby writtenrequest viaemailto the TKPOA contacts, as appropriate,
before the submittal deadline provided in Table 3. After that time, the proposer may not withdraw its
proposal for a period of ninety (90) days from the submittal deadline.

March 9, 2022
IX. QUESTIONS / ADDENDA
Any questions regarding information provided in this RFP shall be submitted in writing via email to
TKPOA contact (see Section XI) with “RFP INQUIRY – Tahoe Keys Lagoons Aquatic Weed Control
Methods Test Monitoring Program Implementation Services” in the subject line.
To be considered, questions must be received by TKPOA by no later than 5:00pm on March 15, 2022.
TKPOA shall respond to such questions by issuance of an addenda, interpreting or clarifying the
requirements of this RFP. All such addenda shall be part of this RFP and binding upon each proposer.
TKPOA may, upon inquiry, direct a proposer’s attention to specific provisions of the RFP which cover
the subject of the inquiry. However, all supplemental information provided by TKPOA during the RFP
process shall not be binding unless communicated by formal written addenda.
X. SELECTION
Selected Contractors will be required to:
• Complete a Request for Contract Information from TKPOA within 3 business days
• Complete the review and execute a Contract for Project Services with TKPOA within 7 calendar
days
The method of payment tothe successfulproposer shallbe based onanagreed uponpaymentschedule
indicated in the Contractual Agreement. Progress payments will be based on actual work completed
and agreed upon in the Contractual Agreement.
XI. TKPOA CONTACT INFORMATION
Please address all questions regarding this RFP to the designated TKPOA contact listed below. This
point of contact will ensure that all information requested, and particularly the specific information or
information referral the respondent receives, will be consistent, uniform, and available to all
respondents, to assure the fairness of the RFP process.
Questions, requests for information, proposals and correspondence must be directed to:
Kirk Wooldridge,
TKPOA General Manager
Tahoe Keys Property Owners Association
356 Ala Wai Boulevard
South Lake Tahoe, CA 96150
Phone: 530-542-6444 Extension: 224
Fax: 530-541-2521 FAX
Email: kwooldridge@tahoekeyspoa.org

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EXHIBIT A
SCOPES OF WORK

March 9, 2022
Exhibit A
Table of Contents
Exhibit A.1.1 – Herbicide and Rhodamine Water Tracer (RWT) Dye Application
Exhibit A.1.2 – Lanthanum Modified Clay (LMC) Application and Monitoring
Exhibit A.1.3 – Well Water Monitoring
Exhibit A.1.4 –Environmental Program Manager and Spill Response
Exhibit A.1.5 – Turbidity Curtain Installation and Removal

Exhibit A.1.1
Herbicide and Rhodamine Water Tracer (RWT) Dye Application
Scope of Work
1.0 Background
The Control Methods Test Project (CMT or Project) will test standalone-treatments using herbicides,
ultraviolet (UV-C) light, and Laminar Flow Aeration (LFA), and combination treatments of herbicide and
UV-C light in the first year of the proposed CMT. These methods will be followed in Years 2 and 3 of the
CMT with non-herbicide follow-up methods, including spot treatments using bottom barriers, diver-
assisted suction/hand pulling, and UV-C treatments. Implementation of these follow-up methods
would be dependent onthe target plants present,size of infestation, and locationof infestation. Figures
1 and 2 show the areas for installation of double turbidity curtains as well as areas that will receive
treatments of herbicide only and herbicide/UV-C combination in Year 1 of the Project. Final test site
selection will be identified and approved by the Lahontan Regional Water Quality Control Board
(Lahontan) in April 2022.
CMT herbicide application is expected to be late-May. The exact date will be dependent on Lake Tahoe
and Tahoe Keys lagoons hydrology, water temperature, and macrophyte growth.
The herbicides that will be applied contain endothall and triclopyr as active ingredients (See label for
product formulations). Since this is a test project, the applications will be made to small (1.0- 2.2 acre)
sites, replicated three times at three different sites for each herbicide or herbicide / UV-C combination.
See Figures 1 and 2 showing locations of herbicide treatment sites.
Figure 1. Proposed Herbicide and Combination Treatment Sites
CMT Implementation Services RFP - Exhibit A March 9, 2020
Page 1

Figure 2. Proposed Herbicide and Combination Treatment Sites, New Sites 13, 14, and 19
For sites to which only herbicide is applied, three sites will be treated with endothall at 2.0 ppm and
three will be treated with triclopyr at 1.0 ppm. Three sites will have combination UV-C treatment in the
center and herbicide treatments in the zones from the outer dock edge to the shore. There is a total of
13 (Figure 2) to 15 (Figure 1) sites to which herbicides will be applied. Table 1 summarizes the
treatments and herbicide products to be applied and methods of application.
In addition to sampling and analysis for herbicides in water and sediment, monitoring of fluorescent
dye Rhodamine WT, which will be applied coincidently with the herbicides, will assess potential
movement of herbicides. Dye will be injected with the liquid formulation of herbicides or applied
separately immediately after application of granular herbicide formulations.
Due to the concerns about potential movement of herbicides into Lake Tahoe, areas where herbicides
are applied willbe separated fromthe mainpart of the lagoon usingseveralstrategically located double
barrier turbidity curtains, which will be installed under a separate contract before herbicides are
applied.
This Scope of Work identifies the specific types, frequency and number of samples and chemical
analyses required to comply with NPDES (Order No. R6T-2022-0004 NPDES NO. CA6202201 WDID
NO.6A091701001) and associated APAP and Mitigation Monitoring and Reporting Plan. It is the intent of
this Scope of Work to provide compliance with the requirements in these attached permits.
Exhibit A.1.1
Page 2

2.0 Application
The following section provides specific information on required application of herbicides and RWT dye
for the CMT. Best Management Practices (BMP’s) for herbicide application are detailed in Section 2.1.1.
Further, requirements regarding implementation of the Final Spill Prevention and Response Plan
(Exhibit G) are provided in Section 2.3.
2.1 Herbicide Application
Due to the intense monitoring program of the CMT, the applications of herbicides will be staggered over
a 3-to-5-day period to allow time for site-by-site herbicide concentration, nutrient, and other
monitoring activities. Only sufficient herbicide product to apply to a single CMT test site to achieve
targeted final concentration shall be loaded on the application vessel. However, in each application
day, the three replicate sites for a given herbicide will be treated. The scheduling of herbicide and
Rhodamine WT applications will determine the timing of post-herbicide/dye monitoring to be
performed by a third-party contractor.
The final CMT site locations (shown in Figures 1 and 2) may be modified slightly within 30 days prior to
herbicide application; however, the types and rates (concentrations) of herbicides will remain the same
and the monitoring regime per site will remain the same as well.
Three products (two active ingredients) will be applied one time, separately in replicated CMT sites:
Aquathol-K or equivalent (dipotassium salt of endothall), Renovate OTF (granular, triclopyr,
triethylamine salt), and Renovate 3 (liquid, triethylamine salt). Table 1 identifies the target
concentration of herbicides, formulations and method(s) of application.
Exhibit A.1.1
Page 3

Table 1. Tentative CMT Application Plan1
Site No. Application
Method
Acres to which
herbicide will
be applied
Aquathol-K®1
,
or equivalent2
Alone (ppm)
Aquathol-K®,
or equivalent
& UV-C (ppm)
Renovate® 3
(ppm)3
Renovate® OFT
& UV-C (ppm)
1 Bottom Hose4
1.5 2.0
2 Bottom Hose 1.5 2.0
11 Botton Hose 0.5 2.0
12 Spreader 0.7 1.0
13 Spreader 0.6 1.0
14 Spreader5
0.7 1.0
Total acres: 16.9
NOTES:
1. The active ingredient of Aquathol-K® is dipotassium salt of endothall. Please see Exhibit D.
2. The brand name may change (e.g., Cascade®), but the active ingredients and % active ingredient will not change.
3. The active ingredient of Renovate® 3 is Triclopyr. Please see Exhibit D.
4. Rhodamine WT will be mixed with liquid (bottom hose) applications to produce a 5-10 ppb final concentration.
5. Rhodamine WT will be applied as a liquid sub-surface application immediately after spreader application is complete
for each site.
2.1.1 Best Management Practices (BMPs) for Application of Herbicides
The Applicator is required to follow the below listed BMPs:
• At least 15 days prior to applications of herbicides or RWT, TKPOA staff will be trained by Applicator
in use of protective gloves, precautions and identification of CMT sites that are scheduled to
receive any herbicide applications. Regardless of the dilution status in CMT sites, Applicator and
TKPOA staff shallwear Nytex or equivalent gloves whenperformingwatersamplingor other water-
contact activities within CMT sites for a period of 15 days post applications, or until the barrier
turbidity curtains are removed.
• As part of the CMT mitigation compliance, TKPOA will have installed several systems to restrict
public access to, and thus contact with herbicides at levels that could pose a hazard. These
restriction to the public, and related information include:
− Physical exclusion of recreational boating inside the CMT sites that will contain herbicide
or RWT using barrier turbidity curtains and other physical impedance to enter CMT sites.
− Educational and informational outreach to TKPOA homeowners and the public through
the TKPOA normal correspondence (Newsletter) and through specifically targeted
communications to homeowners whose homes are within the CMT sites.
1
NOTE: The specific sites/treatments may vary from those identified in this table. Final treatments and sites will be set at
least 30 days before herbicide applications are made.
Exhibit A.1.1
Page 4

− Highly visible signage and warning language directly placed outside and adjacent to the
CMT sites to which herbicide and RWT are to be applied.
• Applicator and supervised staff shall comply with all applicable directions, limitations, conditions,
application methods and equipment, PPE and all other safety and environmental protection,
disposal and containment requirements stated in the respective label for all herbicide products
specified (Exhibit D – Herbicide Labels). Applicator shall review the label, applicationschedule and
application logistics to ensure compliance with all labelling.
• Only sufficient herbicide product to apply to a single CMT test site to achieve targeted final
concentration shall be loaded on the application vessel.
• Loading of herbicide product onto the watercraft utilized for CMT test site applications (i.e.,
discharges) must be done with the vessel behind the double turbidity curtains.
• Herbicide containers shall have a secondary container to capture any leakage and/or spills, should
they occur.
• The entire application system (including pumps, valves, and hoses) shall be tested for integrity
under the operating pressures before any herbicide is loaded for application.
• All equipment shall be calibrated using standard, accepted methods to ensure that the correct
amount of herbicide is properly applied to each CMT herbicide test site.
• Upon completion of application for a given herbicide, the pumping/hoses system may be flushed
within the treated site using clean water or replaced for next day’s treatment.
• The primary hazard for contact with herbicides is direct dermal contact, ingestion or inhalation of
vapors from the undiluted, concentrated packaged products (e.g. containers with either liquid or
granular formulation of herbicides). After the herbicide products are applied in the CMT sites and
become diluted to target concentrations, per label instructions and PPE compliance, the hazard
from contact is negligible. The dilution and mixing period is 24-48 hours in the CMT sites based on
prior RWT movement studies in 2009 and 2011.
• Prevention of herbicide migration
− Application equipment will be removed from the water each day following application
and prior to movement out of treated area.
− Herbicides shall be applied only to the correctly designated site for herbicide
applications (see Figures 1 and 2).
• Specific BMP’s designed to prevent migration or herbicides.
− Hydraulic components and water flow. The timing of herbicide application in the CMT
sites will be contingent upon presence of a net water flow from Lake Tahoe proper into
the Keys West Lagoon via the West Channel. The measurement of water movement
(direction and velocity) will be done using a fixed-station ADP (using doppler principle
to detect and measure particles in water) device. The ADP will be programmed to
assess water velocities and direction at 2-hour intervals for a period of 10 min. during
each two-hour sampling event. This data will be downloaded daily to provide a record
of flows within the West Channel2
.
− The net result is a gradual one-way “filling” of the West Lagoon over a period of several
weeks.
2
NOTE: Historic Lake Tahoe levels suggest that this net flow (filling the Keys) spans March to Mid-June/Mid July depending
upon winter snowpack and rate of snowmelt. In addition, the rate of change in water level within the West Lagoon CMT sites
will be noted weekly.
Exhibit A.1.1
Page 5

− The results of the ADP sampling will be submitted to Lahontan Water Board weekly to
provide a record of the flow status.
− Direct impedance to migration: Installation of double solid curtain barriers. Prior to
application of any herbicides, two, solid synthetic “turbidity” curtains will be installed
at strategic locations to isolate CMT-herbicide and CMT-Herbicide/UV-C combination
sites from the main part of the West Lagoon and thus prevent a connection (migration
pathway) to Lake Tahoe. Barriers will remain in place for 21 days or until herbicide
residues are below effective levels and are below MCL’s.
− Natural “half-life” of herbicides. By using “only sufficient amount of herbicide to
accomplish the CMT goals” (Per EPA guidance), the starting (i.e. highest concentration
of herbicides) are as low as possible to provide needed efficacy. This BMP results in the
degradation of herbicides more quickly to below MCL levels more quickly than if the
herbicides were used at or near the maximum allowable rates and thus greatly
increasing final CMT site water concentration. The outcome of this BMP is to decrease
the likelihood of herbicide residues migrating out of the CMT sites and exceeding
receiving water limitations.
− Use of surrogate dye to detect migration of herbicides. Although this BMP cannot by
itself stop herbicide migration, the use of Rhodamine WT dye provides an “early
warning” signal that can indicate movement of herbicides from the CMT sites. The use
of this surrogate provides a contingency trigger that would cause further monitoring of
sampling stations outside the barrier curtains.
Additional BMP’s can be located in the following documents:
• Section 9.0 (Description of BMP’s to be Implemented) in the TKPOA’s APAP – Amendment 13
; and
• Final Spill Prevention and Response Plan (Exhibit G).
2.2 RWT Dye
Rhodamine WT dye will be applied to achieve a concentration of 5 to 10 ppb (parts per billion) within
the CMT herbicide and herbicide/UV-C combination sites. Where herbicides are applied using a bottom
hose, RWT dye will be mixed with the liquid herbicide to achieve the desired concentration. For
spreader applications of pelleted herbicide, RWT dye will be applied immediately following herbicide
application.
2.3 Spill Prevention and Response Plan
At the direction of Lahontan, a Spill Prevention and Response Plan (Plan) was developed for use during
the CMT to prevent and/or respond to a spill or release of substances containing active herbicide (see
Exhibit G). The Plan identifies best management practices (BMPs) to prevent and mitigate an accidental
spill on land, in the Applicator’s vessel and in the water.
The Applicator shall be responsible for clean-up of any in-vessel spills through actions identified in the
Plan. Additionally, in the event of an in-water spill, the Applicator shall assist the in-water Spill
Response Contractor (under separate contract Exhibit A.1.4) as necessary. In order to ensure
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Exhibit A.1.1
Page 6

immediate response to an in-water spill, the Spill Response Contractor will follow Applicator’s vessel
along the roadways with its mobile Herbicide Spill Response System, as well as in a boat to be ready to
move pumping equipment and hoses from the shore into place in the event of an in-water spill.
The Herbicide SpillResponse System willinclude theuseof hoses, pump(s) andastorage tankto extract
and contain the spill. Appendix B of the Plan provides more detail on the Herbicide Spill Response
System. Contained water will be transported outside the Tahoe Basin for disposal by the Spill Response
Contractor.
The Applicator is responsible for notifying the following individuals of a spill within or outside the
treatment vessel (either land or water) that would require clean up by the spill response team:
• Spill Response Team Manager – (TBD)
• TRPA Project Manager – Dennis Zabaglo (dzabaglo@trpa.gov)
• CMT Project Manager – Rick Lind (rick@sierraecos.com)
• TKPOA/TKWC Manager – Kirk Wooldridge (kwooldridge@tahoekeyspoa.org)
• CMT Assistant Project Manager – Kristen Hunter (kristen@sierraecos.com)
• Field Coordinator / TKPOA Water Quality Staff Supervisor – Greg Hoover
(ghoover@tahoekeyspoa.org)
• Monitoring / Technical Direction and Oversight Director – Dr. Lars Anderson
(lwanderson@ucdavis.edu)
3.0 Applicator Qualifications
The following Applicator qualifications and experience are required:
• Applicator and applicator staff must be certified applicators and must provide their California
Aquatic Pesticide Certification (QAL) license number and current validation
• Record of continuing education units (CEUs) for the past 5 years
• Examples and references for recent (last 3 years) and historic (past 10 years) experience
implementing aquatic herbicide applications
• Possession of California Boater Card or equivalent (if Contractor plans to provide vessel /
operate vessel)
• Experience applying products specified for this scope
The following equipment and instruments are required:
• Description and age of applicator vessel (if applicable), including hull construction, length,
beam, power, use, and safety equipment
• Description of herbicide application system(s) and their conditions for:
− Weighted hose application
− Granular application
− RWT dye application
• Descriptions and conditions of on-board GPS and depth-recording instrumentation used on
application vessel(s) (if applicable)
• Methods/protocols used to calibrate herbicide application equipment to ensure that the final
concentrations are correct.
Exhibit A.1.1
Page 7

4.0 Logistical and Deployment Requirements for Herbicide and RWT Dye Applications
The following are required as part of a pre-deployment / application inspection and orientation:
• At least 21 days before applications are made, Applicator (and its appropriate staff) will meet
with TKOPA staff and others responsible for “non-herbicide” treatments to view all CMT
herbicide application sites, staging areas, and launching areas4
.
• At least 15 days before CMT herbicide applications, the proposed schedule for application will
be reviewed by the Applicator with the MonitoringTechnicalDirector, the CMTProject Manager,
and their project staff, and the schedule will be signed by the Applicator acknowledging the
proposed schedule.
• At least 10 days before herbicide applications to CMTsites, the Applicator, CMTProject Manager
and TKPOA staff willreview wireless communicationplans, spillpreventionand response plans,
equipment, contact numbers to regulatory agencies and other pertinent contacts as
appropriate.
• No later than 10 working days before scheduled CMT applications, Applicator will confirm in
writing arrival time on site to make final preparations for CMT applications.
TKPOA will direct the Applicator to launching and staging areas for access to CMT herbicide treatment
sites (Figure 3). Only TKPOA-designated areas are to be used for off-loading herbicide products in
preparation for field applications.
4
At this time, all necessary herbicide products for the CMT will be in possession of the Applicator within their secure, storage
facilities. None of the herbicide or Rhodamine WT dye products will be stored on TKPOA property. For each product, the EPA
Reg. Number and the “Lot Number” on the container will be recorded.
Exhibit A.1.1
Page 8

Any vessels to be used by Applicator (outside those provided by TKPOA), before launching can occur,
must have the following items completed:
• Proper and current state registration; other Lake Tahoe launch permits stickers as required.
buoy/ring)
Proof of completion/confirmation of the above will be required in writing prior to start of any activities.
Further, for Contractor supplied vessels, proper off-site washdown will be completed following
treatment applications, and if necessary, ensuring the herbicide contaminated water in the vessel is
properly removed, stored, and disposed of in accordance with the product labeling and California and
Federal Requirements.
5.0 Methods to Prevent Sample Contamination
During the period in which herbicide active ingredients and degradants are being monitored
(between late-May 2022 and mid-July 2022 or until the turbidity curtains are removed), and to
Exhibit A.1.1
Page 9

avoid unwanted contamination and/or mixing, any field equipment used to apply herbicides and
RWT dye will be washed between treatment sites. Personnel will put on new gloves between sites
and before the next round of application. Further instructions shall be provided regarding logistics
of cleaning between sites.
Please note: Vessels and personnel used to apply aquatic herbicide will not be used to
collect monitoring samples. Personnel responsible for sample collection and monitoring
will not be allowed to handle or come in contact with personal protective equipment (PPE)
used by applicators and with anyone handling aquatic herbicide containers.
6.0 Field Records and Record Keeping
Detailed records of each herbicide application event will be created by the Applicator, and then
submitted to and maintained by TKPOA. Information for each application event will include:
1. Completion of the Pre-Field Checklist. A Checklisttemplate shall be reviewed and approved
by TKPOA/TRPA 15 days prior to the commencement of herbicide application. These
checklist forms shall include, but are not limited to, the following:
a. Confirmation and date of coordination with designated TKPOA contact for access
and staging of any necessary equipment;
b. Confirmation that Field Data Sheet(s) are printed and ready for field; and
c. Confirmation that all application equipment is ready for use.
2. Completion of Digital Daily Log
a. Calculations used for determining the amount of herbicide / RWT dye to be applied
to each site to achieve the target concentrations (Table 1)
b. Amount of herbicide and RWT dye loaded on application vessel(s) for each CMT
treatment site for each day of application
c. The general weather conditions (wind speed and direction and sky conditions)
d. Amount of herbicide and RWT dye applied to each site
e. The date and time of beginning of application(s) and ending of application to each
site
f. Any unusual or adverse conditions that may affect or may have affected the
application, as well as how such conditions were reported to TKPOA designated
contacts
g. Any necessary clean-up of minor spills within the application vessel
h. Compliance with all product labeling for each herbicide product and for RWT dye
i. Any spills occurring outside the vessel, as well as how such spills were responded to
in accordance with the spill prevention and response plan
Exhibit A.1.1
Page 10

Exhibit A.1.2 –
Lanthanum Modified Clay (LMC) Application and Monitoring
Scope of Work
1.0 Background
The Control Methods Test Project (CMT or Project) will test aquatic weeds management using
standalone-treatments of herbicides, ultraviolet (UV-C) light, and Laminar Flow Aeration (LFA), and
combination treatments of herbicide and UV-C light in the first year of the proposed CMT. These
methods will be followed in Years 2 and 3 of the CMT with non-herbicide follow-up methods, including
spot treatments using bottom barriers, diver-assisted suction/hand pulling, and UV-C treatments.
Follow-up methods would be dependent on the target plants present, size of infestation, and location
of infestation. Figures 1 and 2 show the currently identified areas of the Tahoe Keys that will receive
treatment and what types of treatment will be deployed in each area. Final test site selection will be
identified and approved by the Lahontan Regional Water Quality Control Board (Lahontan) in April
2022.
Figure 1. Proposed CMT Treatment Areas
Page 11

Figure 2. Proposed Control Methods Test Site Locations, New Sites 13, 14, 19, 20, and 21
With treatments in the areas identified above in Figures 1 and 2, levels of total phosphorus could
become elevated, thus triggering the need for lanthanum-modified clay (LMC) applications to minimize
harmful algal blooms (HABs). LMC (Phoslock), once applied, would reduce the available phosphorus
levels in the water column. Per the Project NPDES Permit (ORDER No. R6T-2022-0004 NPDES NO.
CA6202201 WDID NO.6A091701001), LMC is permitted only in sites treated with herbicide, UV-C, or LFA,
and is not otherwise permitted.
2.0 Contractor Qualifications (Application and Monitoring for LMC)
The following qualifications and experience are required:
• Experience and qualifications with similar sampling/monitoring/LMC application work
• Knowledge and familiarity with the Project NPDES, APAP and MMRP
• Application:
− Applicator and applicator staff must be certified applicators and must provide their
California Aquatic Pesticide Certification (QAL) license number and current validation
− Record of continuing education units (CEUs) for the past 5 years
− Examples and references for recent (last 3 years) and historic (past 10 years) experience
implementing LMC applications
− Possession of California Boater Card or equivalent (if Contractor plans to provide vessel /
operate vessel)
Exhibit A.1.2
Page 12

− Experience applying products specified for this scope
− Proof of training or experience working with LMC 90 days or more from date of application
• Monitoring
− Demonstrated ability to coordinate and execute complex water sampling / monitoring
projects, including:
▪ Planning with, supervising and deployment of necessary staff, vessels, equipment
to accomplish the goals of this monitoring.
▪ Ability and experience in creating records of sampling activities, sample transport
and storage.
▪ Ability and experience in coordinating sample transport and COC’s with analytical
laboratories.
▪ Ability and experience in summarizing and documenting water quality monitoring
data.
▪ Ability and experience in summarizing and documenting LMC water and sediment
data.
The following information must be supplied in the proposal regarding Contractor’s equipment and
instruments:
• Description and age of applicator vessel (if applicable), including hull construction, length,
beam, power, use, and safety equipment
• Description of LMC application system(s) and their conditions for:
− Weighted hose application
− Granular application
• Descriptions and conditions of on-board GPS, depth-recording, and other instrumentation
used on application vessel(s) (if applicable)
• Methods used to calculate and then calibrate application equipment to ensure that the applied
LMC concentrations are correct.
3.0 Application
The LMC application concentration is not to be greater than the recommended label application rates
(Exhibit E – Lanthanum Modified Clay Label (Phoslock)). LMC is permitted to reduce the phosphorus
concentration between the water quality objective of 0.008 mg/L and 0.005 mg/L. In no case shall the
quantity of LMC discharged be greater than the amount necessary to reduce the phosphorus in the
waterbody to attain the target range of total phosphorus concentration.
The following criteria must be met prior to application of LMC:
• Visual inspection of a treated area indicates a possible HAB;
• Phosphorus concentrations in the water column for the treated areas are higher than that of
the CMT Project control site(s);
• Cyanobacteria indicators are at caution levels or higher1
; and
• Alkalinity of the water in the area to be treated is greater than 20 mg/L.
1
Caution levels are: Microcystins ≥ 0.8 µg/L; Presence of anatoxin-a; and Cylindrospermopsin ≥ 1.0 µg/L
Exhibit A.1.2
Page 13

The application of LMC must adhere to the Lanthanum Modified Clay Application Plan, to be submitted
to Lahontan in April 2022. The plan will be provided to the selected contractor.
3.1 Logistical and Deployment Requirements for Lanthanum Modified Clay Application(s)
The following are required as part of a pre-deployment/application inspection and orientation:
• At least 21 days before applications may be made, Contractor (and its appropriate staff) will
meet with TKOPA staff and others responsible for “non-herbicide” treatments to view all CMT
herbicide application sites, staging areas, and launching areas. At this time, all necessary
Phoslock product will be in possession of the Contractor within its secure storage facilities.
None of the Phoslock will be stored on TKPOA property.
• At least 10 days before possible applications to CMT treatment sites, the Contractor, CMT
Project Manager and TKPOA staff will review wireless communication plans, lagoons treatment
site access plans, spill response plans, equipment, contact numbers to regulatory agencies and
other pertinent contacts as appropriate.
• At least 15 days before CMT herbicide applications, the proposed schedule for herbicide
application will be reviewed with the Lanthanum Applicator, CMT Project Manager, the CMT
Project Monitoring Director, and associated staff, and the schedule will be signed by the
Contractor acknowledging the proposed CMT sites treatment and monitoring schedule.
TKPOA will provide assigned launching and staging areas at the appropriate locations for access to CMT
herbicide treatment sites (Figure 3). Only designated areas are to be used for off-loading LMC products.
Contractor’s vessels (outside those provided by TKPOA), before launching can occur, must have the
following documentation and items completed:
• Proper and current state registration; other Lake Tahoe launch permits stickers as required
buoy/ring)
• Fore and aft docking lines and at least one appropriately sized anchor with 50 ft of rope.
Proof of documentation and completion will be required in writing prior to start of any activities.
Further, for Contractor supplied vessels, proper off-site washdown, and if necessary, ensuring LMC and
herbicide contaminated water is properly removed and disposed of in accordance with the product
labeling and California and Federal requirements.
Exhibit A.1.2
Page 14

3.2 Best Management Practices
The applicator is required to follow the below listed BMPs:
• Applicator and supervised staff shall comply with all applicable directions, limitations,
conditions, application methods and equipment, PPE and all other safety and environmental
protection, disposal and containment requirements stated in the respective label for all LMC
products specified (Exhibit E – Lanthanum Modified Clay Labels). Applicator shall review the
label, application schedule and application logistics to ensure all labelling is complied with.
• Prior to application, turbidity curtains (if not already in place) are to be installed in the locations
identified on Figure 1 or Figure 2, dependent on Lahontan approval of final CMT test sites.
• Loading of LMC on to watercraft utilized for chemical applications (i.e., discharges) must be
done with the vessel behind the double turbidity curtains (within the site treatment zones).
• Only enough LMC product to apply to a single CMT site to achieve targeted final concentration
shall be loaded onto the application vessel at any time.
• Rate of application must be consistent with product label requirements (Exhibit E) for the
targeted phosphorus reduction.
Exhibit A.1.2
Page 15

Additional BMPs can be located in Section 9.0 (Description of BMPs to be Implemented) in the TKPOA’s
APAP – Amendment 12
(Amended APAP).
4.0 Monitoring
Monitoring for a contingency application of LMC shall follow requirements put forth in NPDES Permit
ORDER No. R6T-2022-0004 NPDES NO. CA6202201 WDID NO.6A091701001, Attachment E – Monitoring
and Reporting Program, Table E-2. Monitoring Requirements for Lanthanum Modified Clay.
Unless otherwise specified in the monitoring plans for pre- and post-CMT treatments, standard water
quality and effectiveness monitoring will be conducted using industry accepted standard protocols,
approved by TKPOA in writing before LMC treatments. All monitoring and data collection shall comply
with the Lahontan and TRPA approvals and permits for the Project.
For purposes of proposing on this scope, partnering with a laboratory for analysis of collected LMC
water and sediment is permitted, and would apply to services shown in Table 1 below. The Contractor
shall identify and supply the teaming partner’s information in response to this proposal and supply
estimates for both Exhibits A.1.2 and laboratory services for analysis of water and sediment grab
samples described below in Table 1. LMC laboratory services are included in Exhibit 3.2 of the TRPA RFP
for CMT Project Monitoring Activities. Please direct inquiries to the TKPOA contact listed in Section XI
of the TKPOA RFP and the TRPA contact provided in the TRPA RFP.
Requirements of pre- and post-LMC treatment activities are summarized in Table 1 below.
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Exhibit A.1.2
Page 16

Table 1. Overview of Required LMC Monitoring
Parameter Monitoring Variable Monitoring Method
Visual
(Pre-Treatment)
− Visual inspection − Monitoring area description
− At each water and sediment sampling event
− Appearance of waterway (color, sheen,
clarity)
− Weather conditions
Standard
(Pre-Treatment)
− Temperature
− pH
− Turbidity
− Dissolved oxygen
− YSI Handheld Meter
− Every 7 days until receiving water
limitations are achieved for 2 consecutive
events at a minimum of 48 hours apart
Water Grab Sample
(Post-Treatment)
− Free Lanthanum
− Alkalinity
− Total Suspended Solids
− Free Reactive Phosphorus
− Total Phosphorus
− Composite sample from surface, mid-
depth, and near-bottom
− Maximum of every 7 days until receiving
water limitations are achieved for 2
consecutive events at a minimum of 48
hours apart
Sediment Grab Sample
(Post-Treatment)
− Total B − Petite Ponar Grab Sampler or similar device
− Composite sample (mixed equal volumes
from at least 3 Ponar grabs)
− Maximum of every 7 days until receiving
water limitations are achieved for 2
consecutive events at a minimum of 48
hours apart
− 2 samples from each monitoring location
Should LMC be applied, monitoring of water and sediment in treated areas will follow that outlined in
Table 1 above. Parameters for lab analysis and associated detection limits are shown below in Table 2.
Table 2. Required CMT Lanthanum Modified Clay Analysis
Parameter Detection Limit3
Free Lanthanum – water 20 mg/L
Alkalinity (CaCO3) – water 10 mg/L
Total Suspended Solids – water 0.50 mg/L
Free Reactive Phosphorus – water 0.010 mg/L
Total Phosphorus – water 0.010 mg/L
Total Phosphorus - sediment 0.05 mg/L
Samples are to be analyzed within 24 hours of sampling, with analysis results delivered within 72 hours.
Results are to be transmitted to the following individuals:
• CMT Field Coordinator/TKPOA Water Quality Staff Supervisor – Greg Hoover
3
In accordance with US EPA 40 C.F.R Part 136 and the Lahontan Water Quality Control Board NPDES sufficiently sensitive rule
Exhibit A.1.2
Page 17

• CMT Monitoring/Technical Direction and Oversight Director – Dr. Lars Anderson
Further, to avoid unwanted contamination and/or mixing between treated sites, any field equipment
used to collect samples will be washed between treatment sites and, if applicable, separate gear will be
used for herbicide untreated sites (receiving water). Personnel will put on new gloves between sites
and before the next round of data collection. Any actions that may compromise a sample or a sampling
event will be logged, explained and signed by the person directing the sampling at the end of the event.
The following sections present an overview of field data and record keeping requirements for LMC
application and monitoring.
6.1 LMC Application Requirements
Detailed records of each LMC application event will be created, and the records of monitoring will be
submitted to and maintained by TKPOA. Information for each monitoring event will include:
1. Completion of the Pre-Field Checklist. A Checklist template shall be reviewed and approved by
TKPOA prior to the commencement of monitoring. These checklist forms should include, but
are not limited to, the following:
a. Confirmation of coordination with TKPOA contact for access and staging of necessary
equipment;
b. Names of personnel to perform the application, and their completion of training,
certifications, and orientation;
c. Confirmation that Field Data Sheet(s) are printed and ready for field; and
d. Confirmation that all application equipment is calibrated, clean, and ready for use.
2. Completion of Digital Daily Log
a. Date and time of application;
b. Location of application;
c. Name of applicator;
d. General weather conditions (wind speed and direction, sky conditions);
e. Calculations used for determining the amount of LMC to be applied to a site to achieve
the targeted concentrations to reduce phosphorus levels;
f. Amount of LMC loaded onto application vessel(s) for each application site for each day
of potential application;
g. Certification of compliance with all product labeling;
h. Quantity of LMC used for each treatment;
i. Application method;
j. Any unusualor adverse conditions that may affect or may have affected the application;
Exhibit A.1.2
Page 18

k. Any necessary clean-up of minor spills within the application vessel and verification of
compliance with spill response plan;
l. Visual monitoring assessment; and
m. Certification that applicator(s) implemented the LMC Application Plan and
implemented the BMPs (Section 3.2 of this SOW).
3. Completion of the online Monitoring and Reporting Checklist
(https://docs.google.com/forms/d/e/1FAIpQLSfZUDBrZbEtNGJE5ojxpFHp_SJhUfwyHhmd4Fb
s-XllWtTpwQ/viewform?usp=sf_link)
In addition to requirements identified in the CMT Project Spill Prevention and Response Plan, the
Applicator is responsible for notifying the following individuals of a spill outside the treatment vessel
(either land or water):
6.2 LMC Monitoring Requirements
All water and sediment sampling will be documented in field data sheets that record each sample date,
time, and coded (GPS) location. More than one sampling location may be recorded on the field data
sheet during a data collection event. At the conclusion of the sampling event, the primary sampling
staff will sign and date each page on which the records were written.
Detailed records of each LMC water and sediment sampling event will be created, and the records of
monitoring will be submitted daily to and maintained by TKPOA. Information for each monitoring event
will include:
1. Completion of the Pre-Field Checklist. A Checklist template shall be reviewed and approved by
TKPOA/TRPA prior to the commencement of monitoring. These checklist forms should include,
but are not limited to, the following:
a. Confirmation of coordination with TKPOA contact for access and staging of any
equipment necessary;
b. Names of personnel to perform the monitoring, and their completion of training,
certifications, and orientation;
c. Confirmation that Field Data Sheet(s) are printed and ready for field; and
d. Confirmation that all sampling equipment is ready for use.
2. Completion of the Field Data Sheet (Field data sheet shall be reviewed and approved by TKPOA
prior to the commencement of monitoring)
a. Date of field event
Exhibit A.1.2
Page 19

b. Sites #s visited
c. Sampling site location identifier
d. Sampling code and time of day for each sample
e. Name of field crew lead
f. Visual monitoring assessment
(https://docs.google.com/forms/d/e/1FAIpQLSfZUDBrZbEtNGJE5ojxpFHp_SJhUfwyHhmd4Fb
s-XllWtTpwQ/viewform?usp=sf_link)
Chain of Custody (COC) forms, supplied by the outsourced analytical labs, will be filled out completely
by listing sample identifications, desired analysis, number of bottles, and type of sample.
7.0 Sample Preservation
Sample preservation shall follow standard sampling protocols as described above, unless otherwise
specified by the laboratory and agreed upon by TKPOA. The Contractor is responsible for coordinating
with the certified and approved laboratory for specifics regarding preservatives, sample bottles, COC
forms, required sample temperature levels, and coolers. The Contractor shall supply all materials and
sampling equipment necessary to perform phosphorous, LMC, and other water/sediment sampling as
required by this scope of work and CMT Project permits, or coordinate with the laboratory to obtain
necessary materials, unless otherwise directed in writing by TKPOA/TRPA.
8.0 Sample Shipping
Collected and appropriately preserved samples are to be shipped to a certified laboratory for analysis
of the parameters identified in Table 2. Samples are to be shipped to the lab at the appropriate
temperature and within 24 hours of the sampling event. Samples will be stored in accordance with
recommendations from the laboratory conducting the sample analysis. Written verification of shipping
and storage condition will be maintained by the “sample custodian”.
9.0 Sample Integrity: QA/QC
As mentioned above, Contractor shall assure and document that samples are shipped at the
appropriate temperature (either frozen, with ice packs, or with dry ice). Duplicate, backup samples will
be collected from each of the sampling locations, properly labelled, and delivered to and stored by the
TKPOA. At collection, shipping, storage, and at any transfer of samples, COC forms will accompany
samples and will list the sample identification (code), number of samples, and signatures from both the
recipient and provider of the samples. A copy of the COC forms will be retained by TKPOA in secure files
on TKPOA property.
Exhibit A.1.2
Page 20

COC forms supplied by the Contractor for TKPOA’s records shall include, but are not limited to, the
following requirements:
• Date and Time of Sampling
• Personnel responsible for collection of samples
• Sample Identification (to correspond to sample labels)
• Parameters to be analyzed by lab
• Preservatives utilized
• Signatures identifying who is responsible for samples if they exchange hands before going to
the lab
• Signature of lab acknowledging receipt of samples at correct temperature and within
appropriate timeframe (within 24 hrs of sampling event)
COC forms shall be uploaded to the appropriate folder on the Project Dropbox as well as submitted to
the following individuals via email:
Instructions for accessing and uploading to the Project Dropbox shall be provided 15-days prior to the
start of CMT treatments as part of the Project orientation.
10.0 Reporting
Regular reporting will take place to maintain transparent data management. Requirements are
shown below in Table 3 with required timelines.
Table 3. Overview of Reporting Requirements
Reporting Requirement Timeline
Completion of Pre-Field Checklist Within 24 hours of each sampling event
Completion of Field Data Sheet
Within 72 hours following each sampling
event
Completion of Monitoring and Reporting Checklist
event
COC Form – Dropbox and Submittal to CMT Project Management
Team
event
Lab Reports – LMC water and sediment Within 24 hours of receival
Working Document Excel Spreadsheet of LMC Monitoring Results Updated Monthly
Final Excel Spreadsheet of LMC Monitoring Results By October 15 annually
Exhibit A.1.2
Page 21

Required reports shown in Table 3 are to be submitted to the following individuals as well as uploaded
and saved to the Project Dropbox.
Following completion of LMC monitoring activities, the Contractor shall prepare a compilation of
laboratory results in excel spreadsheets, sorted by site and date collected. The Contractor shall meet
with TKPOA to develop the specific layout for the spreadsheet. This deliverable is to be submitted to
the Project Dropbox and to the individuals indicated above by no later than October 15 annually.
Exhibit A.1.2
Page 22

Exhibit A.1.3 -
Well Water Quality Monitoring
Scope of Work
1.0 Background
The Control Methods Test Project (CMT or Project) will test aquatic weeds management using
standalone-treatments of herbicides, ultraviolet (UV-C) light, and Laminar Flow Aeration (LFA), and
combination treatments of herbicide and UV-C light in the first year of the proposed CMT. These
methods will be followed in Years 2 and 3 of the CMT with non-herbicide follow-up methods, including
spot treatments using bottom barriers, diver-assisted suction/hand pulling, and UV-C treatments.
Follow-up methods would be dependent on the target plants present, size of infestation, and location
of infestation. Figures 1 and 2 show the currently identified areas of the Tahoe Keys that will receive
treatment and what types of treatment will be deployed in each area. Final test site selection will be
identified and approved by the Lahontan Regional Water Quality Control Board (Lahontan) in April
2022.
Figure 1. Proposed Control Methods Test Site Locations
Page 23

Figure 2. Proposed Control Methods Test Site Locations, New Sites 13, 14, 19, 20, and 21
2.0 Monitoring
Unless otherwise specified in the monitoring plans for pre- and post-CMT treatments, standard water
quality monitoring will be conducted using industry accepted standard protocols, approved by TKPOA,
in CMT Year 1 before, during, and after herbicide treatments. All monitoring and data collection for the
tests shall comply with the Lahontan and TRPA approvals and permits for the Project.
Monitoring well water for herbicide residues and degradants shall be conducted as described in the
following:
• NPDES Attachment E, Section IV C – Water Supply Monitoring (pg E-14);
• Tahoe Keys Lagoons Aquatic Weed Control Methods Test Project Application to Test
Combinations of Aquatic Weed Control Methods, Revised Section 41
, Subsection 4.1.4,
Monitoring Actions for Each CMT Treatment Type (pg 4-10); and,
1
The Tahoe Keys Lagoons Aquatic Weed Control Methods Test Project Application to Test Combinations of Aquatic Weed
Control Methods was submitted to Lahontan Water Board on April 30, 2021. Following this submittal, TKPOA submitted a
revised Section 4, Monitoring and Reporting Program on June 14, 2021 that was peer reviewed for the biological monitoring
requirements.
Exhibit A.1.3
Page 24

• Amendment 12
, Aquatic Pesticide Application Plan (APAP) Application for Individual National
Pollutant Discharge Elimination System (NPDES) Permit for Residual Aquatic Pesticide
Discharges to Waters of the United States from Algae and Aquatic Weed Control Applications for
the Tahoe Keys Lagoons Aquatic Weed Control Methods Test, Tables 8 and 9 (pg. 56 – 58).
Water samples shall be collected from three (3) wells (Figure 3) to identify if herbicide residues and/or
degradants are present. Samples shall be collected 48 hrs prior to herbicide application and then every
48 hours following application until 14 days after treatment (DAT).
Table 1. Well Water Quality Monitoring Summary Table
Monitoring Activity Monitoring Variable (s) Monitoring Method Permit Reference Location
Well Water Quality
Monitoring
− Herbicide Residues
and Degradants
− 50 mL samples 2x
each sample day
− Pre-treatment
sampling within 48
hrs before
application
− Post-treatment
sampling begins 2
DAT after application
and will occur every
48 hrs until 14 DAT
− May continue to 16
DAT and/or 18 DAT if
necessary
− NPDES Attachment E,
Section IV C – Water
Supply Monitoring (pg. E-
14)
− Revised Section 4,
subsection 4.1.4,
Monitoring Actions for
Each CMT Treatment
Type (pg. 4-10)
− APAP Amendment 1,
Tables 8 and 9 (pg. 56-58)
2
This Amendment 1 to the APAP was submitted to Lahontan on February 28, 2022 following Lahontan approval of the CMT
Project and NPDES Permit Order No. CA6202202 WDID 6A91701001 (NPDES Permit).
Exhibit A.1.3
Page 25

Figure 3. TKPOA Tahoe Keys Water Company Well Locations
3.0 Logistics and Monitoring Schedule for Well Water Quality Monitoring
Table 2 provides annual requirements for well water quality monitoring during the CMT Project.
Table 2. Annual Requirements for Well Water Quality Monitoring
Annual Requirements for
Herbicide Monitoring of
Well Water
Year 1 Year 2 Year 3
− May-June
− Three (3) wells
− Pre-treatment (48 hrs
pre application), 2 DAT,
4 DAT, 6 DAT, 8 DAT, 10
DAT, 12 DAT, & 14 DAT
− N/A − N/A
At least 21 days prior to the first well water sampling event, the Contractor shall meet with the CMT
Project Manager, TRPA Project Manager, and TKPOA Tahoe Keys Water Company (TKWC) Manager to
complete a kick-off / orientation meeting for the Project. The Contractor will review the final herbicide
application schedule and confirm its sampling implementation schedule, logistics, possession of all
equipment (including the need for contingent sampling ports), and ability to comply with the sampling
requirements. Additionally, 15 days prior to first sample collection, the Contractor will meet with
TKPOA/TKWC to develop pre-field forms, field data collection sheets, and the layout of a summary
spreadsheet with all collected data that will be submitted as a deliverable.
Exhibit A.1.3
Page 26

At least 10 days prior to first data collection event, the Contractor, CMT Project Manager, TRPA Project
Manager, and TKWC Manager will review wireless communication plans, communication equipment,
daily reporting requirements, contact numbers for regulatory agencies and other pertinent contractors
as appropriate.
Personnel will put on new gloves between wells and before the next round of data collection. Any
actions that may compromise a sample or a sampling event will be logged, explained and signed
by the person directing the sampling at the end of the event. Samples will be placed in pre-labeled
bottles and each label will document the date and time of sampling and be coded for location by
site and station position. Durable labels and marking ink will be used.
5.0 Contractor Qualifications
• Experience and qualifications with similar sampling/monitoring work
• Knowledge and familiarity with Project NPDES permit and associated APAP and Monitoring
and Reporting Program
• Demonstrated understanding and ability to coordinate and execute complex water
sampling / monitoring projects, including:
− Planning with, supervising and deployment of necessary staff and equipment to
accomplish the goals of this monitoring.
− Ability and experience in creating records of sampling activities, sample transport and
storage.
− Ability and experience in coordinating sample transport and COC’s with analytical
laboratories.
− Ability and experience in evaluating and summarizing potable water quality
monitoring data.
6.0 Overview of Anticipated Responsibilities
The following section provides an overview of the anticipated monitoring activity requirements,
including field sheet and record keeping, sample preservation (if applicable), sample shipping (if
applicable), and sample integrity QA/QC. An overview of anticipated monitoring stages is shown
below in Figure 4.
Exhibit A.1.3
Page 27

Figure 4. Overview of Anticipated Stages for Well Water Quality Monitoring
All sample actions will be documented in field data sheets that record each sample date, time, and
coded location. More than one sampling location may be recorded on the field data sheet during a
data collection event. At the conclusion of the sampling event, the primary sampling staff will sign
and date each page on which the records were written.
Detailed records of each well water herbicide residue/degradant sampling will be created and the
records for each event will be submitted daily to and maintained by the CMT Project Manager and
TKWC Manager. Information for each monitoring event will include:
1. Completion of the Pre-Field Checklist. A Checklisttemplate shall be reviewed and approved
by TKPOA/TKWC and the CMT Project Manager 15 days prior to the commencement of
monitoring. These checklist forms shall include, but are not limited to, the following:
a. Confirmation of coordination with TKWC contact for access, sample port, and
staging of any equipment necessary;
b. Names of personnel to perform the monitoring, and their qualification
certifications, completion of training, and orientation;
c. Confirmation that Field Data Sheet(s) printed and ready for field;
d. Confirmation that sampling bottles and sampling equipment are field ready; and
Exhibit A.1.3
Page 28

e. Confirmation that lab has been contacted and is aware of samples to be sent and
schedule for delivery of lab analysis results following monitoring event.
2. Completion of the Field Data Sheet (Field data sheet shall be reviewed and approved by
TKPOA/TKWC and CMT Project Manager prior to the commencement of monitoring)
a. Date of field event
b. Sites visited and Collected Sample(s) ID #s
c. Sampling site location identifier
d. Sampling type code and time of day for each sample
e. Name of field crew lead
f. Visual monitoring assessment
(https://docs.google.com/forms/d/e/1FAIpQLSfZUDBrZbEtNGJE5ojxpFHp_SJhUfwyHhmd
4Fbs-XllWtTpwQ/viewform?usp=sf_link)
Chain of Custody (COC) forms, supplied by the outsourced analytical labs, will be filled out
completely by listing sample identifications, desired analysis, number of bottles, and type of
sample.
6.2 Sample Preservation
Sample preservation shall follow standard sampling protocols as described above, unless otherwise
specified by the laboratory and agreed upon by TKPOA/TKWC. The Contractor is responsible for
coordinating with the certified and approved laboratory for specifics regarding preservatives, sample
bottles, COC forms, required sample temperature levels, and coolers. The Contractor shall supply all
materials and sampling equipment necessary to perform sampling, or coordinate with the laboratory
to obtain materials, unless otherwise directed by TKPOA/TKWC.
6.3 Sample Shipping
Collected and appropriately preservedsamples are tobe shipped byContractor to acertified laboratory
for analysis of the following minimum parameters: endothall acid, endothall dipotassium salt, triclopyr
acid, TCP, 3,6-DCP. Samples are to be shipped to the lab at the appropriate temperature and within 24
hours of the sampling event.
Samples will be stored in accordance with recommendations from the laboratory conducting the
sample analysis. Duplicate, backup samples shall be collected from each of the sampling events and
locations and stored by TKPOA.
Written verification of storage and condition for back-up samples will be maintained by the “sample
custodian”.
Exhibit A.1.3
Page 29

6.4 Sample Integrity: QA/QC
As mentioned above, samples will be shipped at the appropriate temperature per lab protocols (either
frozen, with ice packs, or with dry ice). Duplicate, backup samples will be collected by Contractor from
each of the sampling locations and stored by TKPOA. At collection, shipping, storage, and any transfer
of samples, COC forms will accompany samples and require signatures from both the recipient and
provider of the samples. A copy of the COC forms will be delivered to and retained by TKPOA/TKWC in
secure files on TKPOA property.
COC forms for TKPOA record shall include, but are not limited to, the following requirements:
• Date, time, and location of sampling, and number of samples
• Personnel responsible for collection of samples
• Sample Identification (to correspond to sample labels)
• Parameters to be analyzed by lab
• Preservatives utilized
• Signatures identifying who is responsible for samples if they exchange hands before going to
the lab
• Signature of lab acknowledging receipt of samples at correct temperature and within
appropriate timeframe (within 24 hrs of sampling event)
COC forms shall be uploaded to the appropriate folder on the Project Dropbox as well as submitted to
the following individuals via email:
Instructions for accessing and uploading to the Project Dropbox shall be provided as part of the Project
orientation.
5.0 Reporting
Regular reporting will take place to maintain transparent field sample collection and data
management. Requirements are shown below in Table 3 with required timelines.
Exhibit A.1.3
Page 30

Table 3. Overview of Reporting Requirements
Reporting Requirement Timeline
Completion of Pre-Field Checklist Within 24 hours of each sampling event
Completion of Field Data Sheet
event
Completion of Monitoring and Reporting Checklist
event
COC Form – Dropbox and Submittal to Project Management Team
event
Lab Reports – Herbicide Residue / Degradant Within 24 hours of receipt from lab
Excel Spreadsheet Compiling All Lab Analysis Results By September 30 (CMT Year 1)
Required reporting requirements shown in Table 3 are to be submitted to the following individuals as
well as uploaded and saved to the Project Dropbox.
Following completion of herbicide residue / degradant well water monitoring activities in CMT Year 1,
the Contractor shall prepare a compilation of laboratory results in excel spreadsheets, sorted by well
site and date collected. The Contractor shall confer with TKPOA and the CMT Project Manager to
develop the specific layout for the spreadsheet. This deliverable is to be submitted to the Project
Dropbox and to the individuals indicated above by no later than September 30.
Exhibit A.1.3
Page 31

Exhibit A.1.4
Environmental Program Manager and
Spill Response (Herbicides)
Scope of Work
1.0 Background
The Control Methods Test Project (CMT or Project) will test standalone-treatments using herbicides,
ultraviolet (UV-C) light, and Laminar Flow Aeration (LFA), and combination treatments of herbicide and
UV-C light in the first year of the proposed CMT. These methods will be followed in Years 2 and 3 of the
CMT with non-herbicide follow-up methods, including spot treatments using bottom barriers, diver-
assisted suction/hand pulling, and UV-C treatments. Implementation of these follow-up methods
would be dependent on the target plants present, size of infestation, and location of infestation.
Figures 1 and 2 show the currently identified and proposed treatment areas, respectively, of the Tahoe
Keys that will receive treatment and what types of treatment will be deployed in each area. Final test
site selection will be identified and approved by Lahontan in April 2022.
Figure 1 – Current CMT Treatment Areas
Page 32

Figure 1. Proposed CMT Treatment Areas, New Sites 13, 14, 19, 20 and 21
2.0 General Information
Due to concerns about potential movement of herbicides into Lake Tahoe, CMT-herbicide application
sites will be separated from the main part of the lagoon using strategically located double barrier
turbidity curtains. Installation of turbidity curtains in key locations will help ensure that herbicides do
not migrate into Lake Tahoe proper.
Another threat to Lake Tahoe is from an uncontrolled herbicide spill during the herbicide application
process. At the direction of Lahontan Regional Water Quality Control Board, a Spill Prevention and
Response Plan (Plan) was developed for use during the CMT to prevent and/or respond to a spill or
release of substances containing active herbicide. The Plan identifies best management practices
(BMPs) to prevent and mitigate an accidental spill.
The following chemicals will be used during the CMT. Only chemicals containing active herbicides will
require response procedures should a release to land or water occur.
• Endotholl (Aquathol K® or Cascade®) – Liquid product containing active herbicide
• Triclopyr (Renovate-3®) – Liquid product containing active herbicide
• Triclopyr (Renovate-OTF®) – Granular product containing active herbicide
• Rhodamine WT Dye – Liquid, inert chemical containing no active herbicide (See Exhibit D
for label)
Exhibit A.1.4
Page 33

The focus of this scope of work is for an Environmental Program Manager (EPM) who will oversee Plan
implementation and provide on-land and in-water spill response services and oversight of in-vessel
spills.
2.1 Boat Launching and Staging Areas
TKPOA will provide assigned launching and staging areas (Figure 3) for access to final approved
locations for installing and removing curtains.
All vessels to be used by Spill Response Contractor, before launching, must be inspected by TRPA and
TKPOA staff and have the following items completed:
• Proper and current state registration; other Lake Tahoe launch permits stickers as required.
• Coast Guard approved, properly working personal safety gear (PFDs for each occupant, plus a
throwable life buoy/ring)
• Proper propulsion systems (e.g. 4-cycle, electric, or approved emission control systems)
Proof of completion will be required in writing 24 hours prior to start of any launching activities.
Exhibit A.1.4
Page 34

3.0 Spill Prevention and Response Plan Roles and Responsibilities
Oversight of the herbicide application activities shall be conducted by the Consultant’s Environmental
Program Manager (EPM) to ensure the procedures outlined in the Plan are adhered to, and to document
a spill should one occur. The EPM will provide written and photo documentation of daily field and spill
response activities.
The EPM will be responsible for holding a daily operations meeting to ensure all personnel involved in
the herbicide application process are educated on spill prevention and response measures as outline
the Plan.
The EPM will be responsible for oversight of all spill response, and execution of on-land and in-water
spillresponse activities. Consultant shallsubcontract with aSpillResponse Contractor for in-waterspill
response that specializes in water cleanup. A summary of spill response responsibilities in provided in
Figure 4.
Figure 4. Plan Implementation/Oversight and Spill Response Responsibilities
3.0 Contractor Requirements
EPM Consultant
• Examples and references for experience (within the last 3 years) of the EPM Consultant and
proposed staff performing similar spill prevention and spill response implementation and
oversight activities.
• Environmental Program Manager shall be a registered civil engineer in the State of California
with expertise in spill prevention and response and have 40-hour HAZWOPER training
certification per 29 CFR 1910.120 and 29 CFR 1926.65, familiar with spill prevention and
response
Spill Response Plan
Implementation & Oversight
Environmental Program
Manager
(HAZMAT certified)
On-Land Spill Response
Manager
In-Vessel Spill Response
Herbicide Applicator (separate
contract) under supervision of
Manager
In-Water Spill Response
Spill Response Contractor under
contract with Environmental
Program Manager
Exhibit A.1.4
Page 35

Spill Response Contractor
• Examples and references for experience (withinthe last 3 years) of the Contractor and proposed
staff performing similar spill response and water cleanup activities.
• Proof of possession of the appropriate licenses or certificates to perform this type of work.
4.0 Spill Response Implementation
EPM will ensure the spill response activities described below meet the requirements of the Plan.
4.1 Spill Prevention and Response on Land
The EPM will be responsible for spill response activities resulting from a spill on land and will provide
spill response and BMP materials. The EPM will ensure the spill has been mitigated and that all
used/spent spill response materials and BMPs are properly disposed.
4.2 Spill Prevention and Response on Application Vessel
The EPM will be responsible for providing oversight should a spill occur within the application vessel.
The EPM will ensure that spill response and BMP materials are provided by the applicator and
maintained on the application vessel before herbicides or RWT are loaded onto the herbicide
application vessel, any spill has been properly mitigated by the herbicide applicator, and the
used/spent spill response materials/BMPs are properly contained and disposed of by the applicator.
4.3 Spill Prevention and Response on Water
The EPM will be responsible for oversight of the Spill Response Contractor and the operation of its
Herbicide SpillResponse System. The Spill Response Contractor willbe responsible for providing, being
on standby with, and deploying the spill response equipment, removing the spill, containing the
extractedwater,andtransportinganddisposingofthewaterinaccordancewithapplicableregulations.
The EPM will be responsible for inspecting the system prior to use and providing oversight during
standby and use to ensure no leaks are present. The Spill Response Contractor will be responsible to
ensure all waste is disposed of properly and provide the waste manifests/disposal documentation to
the EPM.
4.3.1 Spill Response Requirements
The Spill Response Contractor will be responsible for pumping water from the Tahoe Keys Lagoons in
response to a spill that occurs outside the test sites or within a test site that is suspected to result in a
concentration more than the maximum label allowable concentrations (i.e., 5 ppm for endothall and
2.5 ppm for triclopyr) of herbicide chemicals. At a minimum, the Spill Response Contractor shall have
the capabilities to perform the following activities:
• Respond to a spill anywhere in the Tahoe Keys Lagoons within 20 minutes of notification that a
spill occurred.
• Equipment capable of responding to a spill within the Tahoe Keys Lagoons from the residential
streets in the Tahoe Keys neighborhood.
• Pumping capacity of 300 gallons per minute.
• Mobile holding tank with a minimum capacity of 5,000 gallons.
• Final transportation and disposal of pumped water.
Exhibit A.1.4
Page 36

Final CMT Implementation Services RFP

Final CMT Implementation Services RFP

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