Exhibit C

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Updated 06/08/26

Draft Statement of Work

I. Project Description

This project serves to better understand the potential health impacts to Coloradans from per- and polyfluoroalkyl substances (PFAS) exposure in groundwater and surface water. PFAS are a group of human-made chemicals used in certain firefighting foam, personal products, and other sources. They can enter rivers and underground aquifers when released into the environment and may contaminate drinking water sources. These chemicals have created an emerging public health challenge requiring enhanced action to avoid future contamination and ensure safe drinking water for all Coloradans. Scientists and health professionals continue to study the health risks. So far, serious potential impacts include pregnancy complications, liver damage, and increased cholesterol. Senate Bill 20-218, Colorado Department of Public Health and Environment Hazardous Substances Response Act, created the PFAS Cash Fund to administer PFAS technical assistance, a takeback program, emergency assistance, and a grant program. The PFAS Grant Program allows the department to award grants for sampling, assessment and investigation of PFAS in surface water or groundwater and other media. This project will: test groundwater, surface water, treated drinking water, and wastewater for PFAS;

test biosolids from wastewater facilities for PFAS; assist grant program participants investigating PFAS levels with sample collection support; and coordinate with CDPHE and local partners to complete sampling activities to assess at-risk groundwater or surface water used for drinking or irrigation located in or near known areas of contamination. A better understanding of PFAS levels in groundwater and surface water and other media will inform grant program participants and citizens on when they may want to take action to reduce associated PFAS exposure.

II. Definitions

A. CDPHE Colorado Department of Public Health and Environment B. Fiscal Year – July 1st until June 30th C. PFAS Per- and polyfluoroalkyl substances D. Sampling Supplies- Sampling supplies include supplies a sampler would need to collect a sample from a water tap, discharge location, surface water source, or biosolids sample and send to the lab for analysis (e.g., cooler, gloves, bottleware, tissue sample, reagents, and PFAS-free water). It does not include pumps, tubing, ice for packing coolers, or other sampling equipment not included in sample kit shipment.

E. PWS - Public water system

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F. SOW - Statement of Work, this Exhibit to the Contract that outlines the work to be completed by the Contractor including the project’s goal, objectives, activities, standards, and requirement, deliverables, and timelines.

III. Work Plan

Program Goal #1: To improve, protect, and restore public health and the environment by improving water quality across Colorado.

Project Objective #1: No later than the expiration of the contract, the Contractor shall assist in protecting the health and environment of Coloradans by better understanding PFAS levels in the state.

Primary Activity (PA) #1:

1. The Contractor shall develop a sampling procedure for technical staff addressing procedures for sample collection of:

a. Treated drinking water PFAS sampling

b. Residential well PFAS sampling

c. Wastewater PFAS sampling

d. Groundwater PFAS sampling

e. Surface water PFAS sampling

f. Biosolids PFAS sampling

g. Soil PFAS sampling

h. Biota PFAS sampling

2. The contractor shall have experience in developing a sampling and analysis plan focused on step-by-step instruction for sample collection by untrained samplers.

Primary Activity (PA) #2: The Contractor shall coordinate and support collection of

PFAS samples approved by CDPHE for grant participants.

PA #2 Sub-Activity(ies):

1. The Contractor shall coordinate the sample collection activities, as directed by the CDPHE Project Manager, with each grant participant.

2. The Contractor shall collect water samples, as directed by the CDPHE Project Manager, for only those PFAS sampling grant participants requesting assistance.

3. The Contractor shall collect the following types of samples

a. From public water systems

b. From private wells

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c. Wastewater samples

d. Groundwater samples

e. Surface water samples

f. Biosolids sampling

g. Soil samples

h. Biota samples

4. The Contractor shall provide sampling supplies.

5. The Contractor shall provide sampling package information to PFAS sampling grant program participants taking their own samples.

6. The Contractor shall provide an online-compatible grant participant inquiry form to address sample procedure issues.

PA #2 Standards and Requirements (if applicable):

1. The Contractor shall include the following in the sampling procedure to be approved by the CDPHE Project Manager:

a. Preparation procedures and sampling and analysis plans before sampling.

b. Sampling collection procedures.

c. Shipping procedures for the samples.

d. The Contractor shall collect PFAS samples in accordance with the

CDPHE-provided sampling protocol and their Quality Assurance Project Plan (QAPP)

2. The Contractor shall have a procedure in place for answering inquiries from PFAS sampling grant participants regarding PFAS testing.

Primary Activity (PA) #3: The Contractor shall have samples analyzed for PFAS.

PA #3 Sub-Activity(ies):

1. The Contractor shall ship samples collected for grant participants to the specified lab.

2. The Contractor shall manage samples that are received from PFAS sampling grant program participants taking their own samples for analysis.

3. The Contractor shall have water samples analyzed for PFAS via appropriate analysis methods by sample type.

4. The Contractor shall manage samples through the appropriate chain of custody.

5. The Contractor shall consult with CDPHE to determine appropriate reporting requirements for sample analysis.

6. The Contractor shall consult with CDPHE on method modifications for sample analysis.

7. The contractor shall coordinate when samples require a quick turnaround for lab analysis with CDPHE Project Manager.

PA #3 Standards and Requirements (if applicable):

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1. The Contractor shall have treated drinking water samples analyzed using EPA Method 537.1.

2. The Contractor shall have groundwater and surface water samples analyzed using Modified Method 1633.

3. The Contractor shall have wastewater, biosolids, biota samples analyzed using EPA Method 1633.

Primary Activity (PA) #4: The Contractor shall coordinate with CDPHE to support local governmental entities, public water systems, and other entities with sampling activities at CDPHE-identified at-risk waters used for consumption located in or near known areas of contamination that could be above EPA maximum contaminant levels.

PA #4 Sub-Activity(ies):

1. The Contractor shall provide support services as requested by CDPHE Project Manager to assist governmental entities, public water systems, and other entities with outreach efforts to private well owners in selected at-risk areas about well sampling.

2. The Contractor shall provide support services as requested by CDPHE Project Manager to assist governmental entities, public water systems, and other entities with water sources sample collection.

3. The Contractor shall provide support services as requested by CDPHE Project Manager to assist governmental entities, public water systems, and other entities with notification of at-risk populations above EPA health advisory levels regarding actions to reduce exposure based on sampling results.

4. The Contractor shall coordinate next steps with CDPHE when samples are above EPA health advisory levels regarding actions to reduce exposure based on sampling results

Primary Activity (PA) #5: The Contractor shall create analytical data reports.

PA #5 Sub-Activity(ies):

1. The Contractor shall provide analytical data reports to PFAS sampling grant participants.

2. The Contractor shall provide analytical data reports to the CDPHE Project Manager.

3. The Contractor shall provide analytical data reports to PFAS sampling grant participants in a format fit for compliance reporting

PA #5 Standards and Requirements (if applicable):

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1. The Contractor shall have monthly status calls with CDPHE Project Manager on project progress.

2. The Contractor shall have experience using the template provided by the CDPHE Project Manager for the analytical data report to include the following at a minimum:

a. Lab provided analytical report

b. Sample results in electronic format

c. Sample locations in electronic format:

i. Address

ii. GPS coordinates accurate within 15 meters

iii. PWS identification,

iv. PWS System Name,

v. Facility Name,

vi. Sample Location Description

vii. Categorize Facility Type,

viii. Source Water Type,

ix. PWS Sample Location Type,

x. Treatment Status, and

xi. Notes on Treatment System

Primary Activity (PA) #6: The Contractor shall be available for emergency PFAS sampling efforts.

PA #6 Sub-Activity(ies):

4. The Contractor shall be prepared to conduct sampling for emergency assistance within a week of notification.

General Standards and Requirements

1. The content of electronic documents located on CDPHE and non-CDPHE websites, and information contained on CDPHE and non-CDPHE websites, may be updated periodically during the contract term. The Contractor shall monitor electronic documents and website content and information for changes to comply with all updates.

2. Contractor shall inform CDPHE of any nonfunctioning linked or incorporated hyperlinks, documents, or resources within ten (10) days of discovery.

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3. As for all standards and manner and performance under this statement of work, all standards of care, skill and diligence will be customarily exercised within the industry of engineering and environmental services.

Expected Results of Activity(ies):

1. Increased awareness of PFAS levels in drinking water, groundwater, surface water, and wastewater, and biosolids, soils and biota statewide.

Measurement of Expected Results:

1. Data in the Analytical Data Report.

IV. Deliverable Schedule:

Description: Due Date:

The Contractor shall submit an established Sampling and Analysis Plan.

No later than 60 calendar days from contract execution.

The Contractor shall submit an established Grant Participant Inquiry Form for approval by the CDPHE Project Manager.

No later than 60 calendar days from contract execution.

The Contractor shall provide an analytical data report to CDPHE and grant participants.

No later than 20 business days after the analysis data is received by HDR from the lab(s).

The CDPHE reporting data in the Division’s template shall be updated with location data and provided to CDPHE and grant participants as final deliverable.

No later than 20 business days after the analysis data has been delivered to the grant participant and CDPHE.

The Contractor shall submit an annual report of the sampling year project and results.

No later than August 15th of each year.

The Contractor shall submit one final report of the entire sampling project and results.

No later than 15 days before the expiration date of the contract.

V. Monitoring

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CDPHE’s monitoring of this contract for compliance with performance requirements will be conducted throughout the contract period by the program coordinator.

Methods used will include a review of documentation determined by CDPHE to be reflective of performance to include progress reports, annual reports, data, and other fiscal and programmatic documentation as applicable. The Contractor’s performance will be evaluated at set intervals and communicated to the Contractor. A Final

Contractor Performance Evaluation will be conducted at the end of the life of the contract.

VI. Resolution of Non-Compliance

The Contractor will be notified in writing within 45 calendar days of discovery of a compliance issue(s). Within 60 calendar days of discovery, the Contractor and the

State will collaborate, when appropriate, to determine the action(s) necessary to rectify the compliance issue and determine when the action(s) must be completed.

The action(s) and timeline for completion will be documented in writing and agreed to by both parties. If extenuating circumstances arise that require an extension to the timeline, the Contractor must email a request to the program coordinator and receive approval for a new due date. The State will oversee the completion and implementation of the agreed-upon action(s) to ensure timelines are met and the compliance issue(s) is resolved. Failure by the Contractor to diligently pursue the compliance resolution plan, or to reach an agreement with the State on such a plan, may result in the State exercising its rights under the provisions of the contract.

VII. Additional Provisions

A. Invoicing Provisions

To receive compensation under the Contract, the Contractor shall submit a signed

Monthly, Quarterly, or other CDPHE Reimbursement Invoice Form from the CDPHE

Standardized invoice form website. The CDPHE Standardized invoice form website is incorporated and made part of this Contract by reference. CDPHE will provide technical assistance in accessing and completing the form. The CDPHE

Reimbursement Invoice Form and Expenditure Details page must be submitted no later than forty-five (45) calendar days after the end of the billing period for which https://cdphe.colorado.gov/standardized-invoice-form https://cdphe.colorado.gov/standardized-invoice-form

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The Contractor shall submit the following documentation with the completed invoice; progress report.

Scan the completed and signed Invoice Form (and supporting documentation) into an electronic document. Email the Invoice form (and supporting documentation) to: - PFAS Program Coordinator, cdphe_wqcd_pfas_grant@state.co.us;

Cdphe_wqcd_contracts+swap@state.co.us

Final billings under the Contract must be received by the State within a reasonable time after the expiration or termination of the Contract; but in any event no later than forty-five (45) calendar days from the effective expiration or termination date of the Contract.

Contractor shall request prior approval in writing from the State for all modifications to the Statement of Work or for any modification to the direct costs in excess of twenty-five percent (25%) of the total budget for direct costs, or for any modifications to the indirect cost rate. Any request for modifications to the

Budget in excess of twenty-five percent (25%) of the total budget for direct costs, or any modifications to indirect cost rates, shall be submitted to the State at least ninety (90) days prior to the end of the contract period and will require a modification in accordance with the provisions of this contract.

B. Deliverable Acceptance Process

1. The Contractor shall coordinate and prioritize all work to ensure that all deliverables, due dates, and timelines are met.

2. The Contractor shall employ an internal quality control process to ensure that all deliverables are complete, accurate, easy to understand, and of high quality.

3. The Contractor shall provide deliverables that, at a minimum, are responsive to the relevant Standards and Requirements in the SOW, organized in a logical order, contain no spelling or grammatical errors, are formatted uniformly, and contain accurate information and correct calculations.

4. The Contractor shall maintain all work papers related to the development of all Deliverables for reference through the duration of the contract.

5. The Contractor shall provide, at no cost to the State, copies of any work papers or supporting documentation related to the development of any Deliverable within 45 calendar days of request by the State.

mailto:cdphe_wqcd_pfas_grant@state.co.us mailto:Cdphe_wqcd_contracts+swap@state.co.us

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6. The Contractor shall submit each Deliverable to the State by the specific due date for each Deliverable outlined in the Deliverable Schedule for review and approval.

7. Review - Unless specifically outlined elsewhere in the SOW, the State will have

30 calendar days from the date the deliverable is due to the State by the

Contractor to evaluate that Deliverable.

8. Notice - Unless specifically outlined elsewhere in the SOW, if the State, in its sole discretion, determines that a submitted Deliverable fails to meet the

Standards and Requirements or is otherwise deficient, the State will notify the

Contractor of the failure or deficiency within [insert number(##)] calendar days of the date the State becomes aware of the failure or deficiency.

9. Revision - Unless specifically outlined elsewhere in the SOW, the Contractor shall have 14 calendar days from notice of a Deliverable’s failure or deficiency to revise the Deliverable and resubmit it to the State for review and approval.

10. The Contractor shall participate in the Deliverable review and revision process until the State provides written acceptance of the Deliverable.

11. At no time shall payment or partial payment for a Deliverable constitute acceptance of the Deliverable and excuse Contractor’s obligation to participate in the Deliverable review and revision process until such time as the State issues written acceptance of the Deliverable.

C. Health Insurance Portability and Accountability Act (HIPAA) Business Associate

Determination

The State has determined that this Contract does not constitute a Business

Associate relationship under HIPAA.

Option to Increase or Decrease Maximum Amount

The State has the Option to increase or decrease the statewide quantity of Goods and Services based upon the rates established in this Agreement and increase or decrease the maximum amount payable accordingly. In order to exercise this option, the State shall provide written notice to Contractor in a form substantially equivalent to the Sample Option Letter attached to this Agreement. Delivery of

Goods and performance of Services shall continue at the same rates and terms as described in this Agreement. The State may include and incorporate a revised budget with the option letter, as long as the revised budget does not unilaterally change rates or terms specified in this Agreement.

D. Option to Extend Term

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The Department at its discretion, shall have the option to extend the performance under this Agreement beyond the Initial Term for a period, or for successive periods, of one year or less, at the same rates and under the same terms specified in the Agreement (each such period an “Extension Term”). In order to exercise this option, the Department shall provide written notice to the

Contractor in a form substantially equivalent to the Sample Option Letter attached to this Agreement. The total duration of this Agreement, including the exercise of any options to extend, shall not exceed five years from its Effective

Date absent prior approval from the Chief Procurement Officer in accordance with the Colorado Procurement Code.