4-RFP 2000004191.pdf

IMPORTANT NOTICE

THIS IS AN ELECTRONIC PROCUREMENT (eBID)

SUBMISSIONS WILL ONLY BE ACCEPTED

ELECTRONICALLY VIA THE BONFIRE PORTAL

https://fairfaxcounty.bonfirehub.com

Fairfax County Government uses a procurement portal powered by Bonfire Interactive for accepting and evaluating proposals. To register, visit https://fairfaxcounty.bonfirehub.commailto:. Additional assistance is also available at Support@GoBonfire.com.

Submitting proposals via the Bonfire portal is mandatory. Fairfax County will not accept proposals submitted by paper, telephone, facsimile (“FAX”) transmission, or electronic mail (e-mail) in response to this RFP. Reference section titled “ELECTRONIC SUBMISSION OF PROPOSAL” in the Special Provisions, for additional information.

Fairfax County strongly encourages offerors to submit proposals well in advance of the proposal submission deadline. A proposal submission is not considered successful unless all necessary files have been uploaded and the ‘Submit & Finalize’ step has been completed. Offerors are responsible for the consequences of any failure to plan ahead in the submission of its Proposal.

The County uses eVA - Virginia's online, electronic procurement system, to publicly announce notice of all contract awards in excess of $200,000. In order to announce county contract awards, registration with eVA is necessary. In anticipation of receiving an award, vendors should register by clicking the Register Now link on the eVA website homepage (www.eVA.virginia.gov).

https://fairfaxcounty.bonfirehub.com/ mailto:

https://bonfirehub.zendesk.com/hc

RFP 2000004191

SPECIAL PROVISIONS

1. SCOPE OF SERVICES:

1.1. The purpose of this Request for Proposal (RFP) is to solicit sealed proposals through competitive negotiation for the provision of comprehensive chemical and delivery solutions designed to proactively mitigate hydrogen sulfide (H₂S) formation in long-retention wastewater systems. This contract will support the Department of Public Works and Environmental Services (DPWES), Wastewater Collection Division, in addressing odor complaints, corrosion risks, and service continuity across pump stations, force mains, and other affected facilities, in accordance with the specifications outlined in this solicitation.

2. BACKGROUND INFORMATION:

2.1. The Fairfax County Wastewater Collection Division currently uses liquid chemicals to mitigate H 2S at eleven facilities (see Appendix B for list of current facilities). Eight of those facilities currently utilize BIOXIDE® and three utilize Odophos®. All sites require delivery, with four of the sites requiring vendor-provided dosing services and five of the sites requiring vendor-required monitoring services. During the course of this contract, Fairfax County may request the vendor(s) to add new sites or to deactivate current sites based on mutual agreement; there may be service adjustments requested for each site as well, requiring price adjustments. Currently each pump station uses an odor control and H2S reduction chemical year-round. Typical feed rates increase in the warmer months from May through October. During the winter months, the dosage rates decrease since lower temperatures reduce the production of H2S. Chemical feed rates are significantly reduced or sometimes halted during intense storm seasons due to increased flow into the system and reduced retention time in the force mains.

3. OPTIONAL PRE-PROPOSAL CONFERENCE:

3.1. An optional pre-proposal conference will be held on October 09, 2025 at 2:00 P.M. You can click on the following link to attend the conference:

Microsoft Teams Join the meeting now Meeting ID: 233 055 685 338 3 Passcode: dy6pd6eT

Dial in by phone +1 571-429-5982,,57451481# United States, Washington Find a local number Phone conference ID: 574 514 81#

3.2. The purpose of the pre-proposal conference is to give potential offerors an opportunity to ask questions and to obtain clarification about any aspect of this RFP. Offerors may submit any questions pertaining to the RFP, in writing, to shameema.rahman@fairfaxcounty.gov.

4. CONTACT FOR CONTRACTUAL MATTERS:

4.1. All communications and requests for information and clarifications shall be directed to the following procurement official:

Shameema Rahman, Contract Specialist Department of Procurement and Material Management Telephone:703-324-3138 Email: Shameema.rahman@fairfaxcounty.gov

4.2. No attempt shall be made by any offeror to contact members of the Selection Advisory Committee (SAC) about this procurement (see paragraph 14.3).

https://teams.microsoft.com/l/meetup-join/19%3ameeting_MjhmNTg4YTAtNDQyNS00OWYxLWFjOTItMTU1OWE1Mjg5ZGUz%40thread.v2/0?context=%7b%22Tid%22%3a%22a26156cb-5d6f-4172-9d7d-934eb0a7b275%22%2c%22Oid%22%3a%22c0233131-d348-4d9c-bfda-5e1eba2b44ff%22%7d tel:+15714295982,,57451481 https://dialin.teams.microsoft.com/e5b18791-4e42-4a82-bed2-216a0e93463a?id=57451481 mailto:shameema.rahman@fairfaxcounty.gov mailto:Shameema.rahman@fairfaxcounty.gov

5. CONTRACT PERIOD AND RENEWAL:

5.1. This contract will be for three (3) years with two (2) one-year renewal options available or “as negotiated.

5.2. Automatic contract renewals are prohibited. Contract renewals must be authorized by and coordinated through the County’s Department of Procurement and Material Management

(DPMM).

5.3. The obligation of the County to pay compensation due the contractor under the contract or any other payment obligations under any contract awarded pursuant to this Request for Proposal is subject to appropriations by the Fairfax County Board of Supervisors to satisfy payment of such obligations. The County’s obligations to make payments during subsequent fiscal years are dependent upon the same action. If such an appropriation is not made for any fiscal year, the contract shall terminate effective at the end of the fiscal year for which funds were appropriated and the County will not be obligated to make any payments under the contract beyond the amount appropriated for payment obligations under the contract. The County will provide the contractor with written notice of non-appropriation of funds within thirty (30) calendar days after action is completed by the Board of Supervisors. However, the County’s failure to provide such notice shall not extend the contract into a fiscal year in which sufficient funds have not been appropriated.

6. STATEMENT OF NEEDS:

6.1. The Fairfax County Wastewater Collection Division is soliciting proposals from qualified vendors to provide comprehensive chemical and delivery solutions designed to proactively mitigate hydrogen sulfide (H₂S) formation in long-retention wastewater systems. Solutions must address odor complaints, corrosion risks, and service continuity within pump stations, force mains, and other affected facilities.

6.2. The selected vendor shall provide:

a. Proven liquid-phase chemical products for the biological or chemical treatment of H₂S in the wastewater stream;

b. Chemical storage and feed equipment compatible with County operations and conveyance infrastructure;

c. Instrumentation for H₂S monitoring at designated sites, capable of generating actionable data;

d. Ongoing service and support, including:

1. Routine maintenance of chemical feed equipment;

2. Monthly field sampling and performance reporting;

3. Technical consultation and dosing recommendations to the Wastewater Collection

Division;

4. Spill response and regulatory compliance support;

5. Communication via an integrated, web-based interface; and

e. Daily H₂S monitoring with high-level alerts via email or text, and remote chemical feed rate adjustments to maintain compliance.

6.3. Documentation of performance and effectiveness, including recommendations for optimizing odor and corrosion control measures.

6.4. Transition of Existing Equipment: Under the County's current contracts, BIOXIDE® (liquid calcium nitrate) is used to treat liquid-phase sulfides; Odophos® (buffered solution of ferrous sulfate) is also used in instances where the focus is on odor control and corrosion prevention.

The selected vendor(s) must be able to provide requested chemicals, along with appropriate equipment. If the selected vendor(s) proposes solutions to replace the BIOXIDE® and/or Odophos® sites, they must:

a. Replace equipment and instrumentation owned by the incumbent Vendor to ensure compatibility with the proposed chemical system;

b. Coordinate the demobilization of existing equipment with the current Vendor, who will be provided one month for removal;

c. Submit general plans and documentation specifying recommended replacement equipment for each active feed site;

d. Minimize service disruptions during installation, in coordination with the Wastewater

Division and per an approved schedule;

e. Provide pricing for equipment replacement as a separate line item on the proposal sheet.

f. The Wastewater Collection Division reserves the right to:

1. Determine the timeline for equipment replacement, including the option to defer replacement indefinitely;

2. Purchase the existing chemical equipment at a salvage cost agreed upon with the incumbent Vendor;

3. Coordinate the removal of Vendor-owned equipment from inactive sites.

6.5. The Contractor shall:

a. Be recognized and experienced in the field of wastewater odor control.

b. Provide a list of three (3) references currently using the material for control of hydrogen sulfide. The list is to include telephone numbers and contact names.

c. At least two (2) of these references is to have used the material for three (3) or more years.

6.6. The Contractor shall be capable of providing on-site technical assistance within 24 hours of notification and expected to have at least two distribution centers from which product can be shipped. The addresses of these facilities are to be provided with the bid. The current list of facilities utilizing H2S mitigation is provided in the Technical Requirements. The Contractor should include provisions for adding or deleting sites for chemical delivery and storage/feeding, and monitoring.

6.7. The Contractor shall be capable of manufacturing and providing complete storage and feed systems for the material. These systems are to include storage tanks, feed pumps, and control panels. The supplier shall be an Underwriters Laboratories Listed manufacturer of Enclosed Industrial Control Panels. Proof of U.L. Certification shall be provided with the bid.

6.8. The supplier shall employ trained technicians to perform system optimization and maintenance.

The Supplier’s representatives/technicians shall have a minimum of two (2) years’ experience in handling chemicals, testing water/wastewater and using chemical dosing equipment as it applies to the chosen chemical in wastewater systems. At least one technician shall reside within 30 miles driving distance from the County. Supplier must provide a list of technicians (minimum of three) who will be performing the work within the County and detailed information on their locations.

7. TECHNICAL PROPOSAL INSTRUCTIONS:

The offeror must submit their response to the Technical Proposal in Bonfire containing the following information. This information will be considered the minimum content of the proposal. Proposal contents shall be arranged in the same order and identified with headings as presented herein. In addition, the offeror will submit in Bonfire an executed County’s Cover Sheet (DPMM32), all the Attachment A documents, and all issued Addenda (as applicable).

7.1. Section 1 – Introduction:

a. Name of firm submitting proposal; main office address; when organized; if a corporation, when and where incorporated; appropriate Federal, State, and County registration numbers.

7.2. Section 2 – Statement of Qualifications:

a. Organizational and Staff Experience: Offerors must describe their qualifications and experience to perform the work described in this Request for Proposal. Information about experience should include direct experience with the specific subject matter.

b. References: Special notation must be made of similar or related programs performed and must include organization names, addresses, names of contact persons, and telephone numbers for such reference.

c. Personnel: Full-time and part-time staff, proposed consultants and subcontractors who may be assigned direct work on this project should be identified. Information is required which will show the composition of the task or work group, its specific qualifications, and recent relevant experience. Special mention shall be made of direct technical supervisors and key technical personnel, and approximate percentage of the total time each will be available for this project.

The technical areas, character and extent of participation by any subcontractor or consultant activity must be indicated and the anticipated sources will be identified.

Resumes of staff and proposed consultants are required indicating education, background, recent relevant experience with the subject matter of the project. Current telephone numbers must be included.

The personnel named in the technical proposal will remain assigned to the project throughout the period of this contract. No diversion or replacement may be made without submission of a resume of the proposed replacement with final approval being granted by the County Purchasing Agent.

d. A staffing plan is required which describes the Offeror’s proposed staff distribution to accomplish this work. The staffing plan should indicate a chart that partitions the time commitment of each professional staff member across the proposed tasks and a timeline for the project. It is mandatory that this section identify the key personnel who are to work on the project, their relationship to be contracting organization, and amount of time to be devoted to the project. This includes Consultants as well as regular employees of the offeror, if relevant.

e. Financial Statements: The offeror shall provide an income statement and balance sheet from the most recent reporting period.

7.3. Section 3 – Understanding the Statement of Needs:

The offeror must present a description of the phases or segments into which the proposed program can logically be divided and performed, together with flow charts. The technical narrative should address separately each of the “Statement of Needs” described in the Request for Proposal and responses should be keyed to appropriate paragraph numbers providing the following information below:

This section should also contain a discussion of any changes proposed by the offeror that substantially differs from the project scope described in these Special Provisions.

a. Statement and discussion of the requirements as they are analyzed by the offeror .

b. Offeror's proposed definitive Scope of Work with explanation of technical approaches and a detailed outline of the proposed program for executing the requirements of the Statement of Needs and achieving project objectives.

c. Preliminary layouts, sketches, diagrams, other graphic representations, calculations, and other data as may be necessary for presentation, substantiation, justification or understanding of the Statement of Needs.

d. Offeror should demonstrate an awareness of difficulties in the completion of this undertaking, and a plan for surmounting them. Special attention should be given to methodological issues that will be encountered in such a project.

e. Offeror may also comment if deemed appropriate, on any aspect of the Request for Proposal, including suggestions on possible alternative approaches to the coverage, definition, development, and organization of the issues presented in the “Statement of Needs” section, and may propose alternative approaches.

f.

8. COST PROPOSAL INSTRUCTIONS:

8.1. The offeror must submit their response to the Cost Proposal in Bonfire fully supported by cost and pricing data adequate to establish the reasonableness of the proposed rates. Rates will be itemized and based on the items provided: $/chemical, rental fee for tank, monitoring service etc.

The following information should be submitted as part of the cost proposal:

The cost of each task or segment of the task shall be itemized.

a. Offerors must provide a price breakdown for each service separately (chemical based on volume, tank rental fee(s), and monitoring service where provided) as well as totals for services provided together if price differ.

b. Breakdown of direct labor and labor overhead costs including number of man-hours and applicable actual or average hourly rates, overhead rate and supporting schedule.

c. Travel and per diem or subsistence costs, if any supported by breakdown including destination, duration and purpose.

d. Breakdown of other expenses such as clerical support, other overhead costs, supplies, etc.

e. The Contractor shall provide pricing in terms of price per gallon of solution delivered. All charges including freight, technical assistance, delivery etc. shall be included in the per gallon bid price. Pricing shall be valid for deliveries of 1500 gallons or more per shipment.

f. The Contractor shall provide a complete storage and feed system at specified sites compatible with County operations, including conveyance systems. There shall be no additional cost to the County for the use of this equipment.

g. The system must include monitoring capabilities, including an alarm to replace the sensor and when the battery is low. The supplier shall provide the monitoring system, including data accessibility at no additional cost.

h. The Contractor shall provide all required service on storage and feed equipment, including maintenance, sampling, technical support, digital communication tools, and spill response readiness.

9. PRICING:

9.1. The subsequent contract will be a firm-fixed price agreement. The rate(s) will remain firm and will include all charges that may be incurred in fulfilling the requirements of the contract during the first 365 days.

9.2. Changes in cost for any subsequent contract years may be based on the Consumer Price Index (CPI-U), or other relevant indices. The Contractor shall give not less than 60 days advance notice of any price increase to the purchasing office. The Contractor shall fill all orders received prior to the effective date of the price adjustment at the old contract prices. Should a price increase be granted the prices will remain firm for 365 days.

9.3. The request for a change in the unit price shall include as a minimum, (1) the cause for the adjustment; (2) proposed effective date; and, (3) the amount of the change requested with documentation to support the requested adjustment (i.e., appropriate Bureau of Labor Statistics, Consumer Price Index (CPI-U), change in manufacturer's price, etc.).

9.4. Price decreases shall be made in accordance with paragraph 40 of the General Conditions & Instructions to Offerors. (Appendix A)

10. TRADE SECRETS/PROPRIETARY INFORMATION:

10.1. Trade secrets or proprietary information submitted by an offeror in connection with a procurement transaction shall not be subject to public disclosure under the Virginia Freedom of Information

Act; however, offerors must invoke the protections of this section prior to or upon submission of the data or other materials.

10.2. The offeror must identify the data or other materials to be protected and state the reasons why protection is necessary. Disposition of material after award(s) should be stated by the offeror.

10.3. Request for Protection of Trade Secrets or Proprietary Information (Attachment A) is provided as a courtesy to assist offerors desiring to protect trade secrets or proprietary information from disclosure under the Virginia Freedom of Information Act.

10.4. The classification of an entire proposal document, line item prices, and/or total proposal prices as proprietary or trade secrets is not acceptable and may result in rejection of the proposal.

11. REQUIRED SUBMITTALS:

11.1. Each Offeror responding to this Request for Proposal must supply all the documentation required in the RFP. Failure to provide documentation with the Offeror's response to the RFP will result in the disqualification of the Offeror's proposal.

12. ELECTRONIC SUBMISSION OF PROPOSAL:

12.1. Proposals must be received electronically through Fairfax County’s online Procurement Portal at:

https://fairfaxcounty.bonfirehub.com, on or before the Submittal Deadline. Submissions will only be accepted through the portal. Fairfax County will not accept proposals submitted by paper, telephone, facsimile (“FAX”) transmission, or electronic mail (i.e., e-mail) in response to this RFP.

12.2. Proposal submissions and registration are free of charge. Offerors can register for a free account at: https://fairfaxcounty.bonfirehub.com, which will be required when preparing a submission.

Documents may be uploaded at any time during the open period. The official time used for receipt of proposals/modifications is the time stamp within the Bonfire portal. No other clocks, calendars or timepieces are recognized. For technical questions related to a submission contact Bonfire at Support@GoBonfire.com or click on the link “Contact Bonfire Support here” under Need Help?.

(Note: it takes an average of 16 minutes to an hour for a response). Therefore, offerors shall take the necessary steps to submit their proposals in advance.

12.3. If, at the time of the scheduled proposal closing Fairfax County Government is closed due to inclement weather or another unforeseeable event, the proposal closing will still proceed electronically through the Bonfire system.

12.4. Technical Information: Uploading large documents may take time, depending on the size of the file(s) and your Internet connection speed. You will receive an email confirmation receipt with a unique confirmation number once you finalize your submission. Minimum system requirements for the Bonfire portal - Microsoft Edge, Google Chrome, or Mozilla Firefox. Javascript must be enabled. Browser cookies must be enabled.

12.5. It is the Offeror's responsibility to clearly identify and to describe the services being offered in response to the Request for Proposal. Offerors are cautioned that organization of their response, as well as thoroughness is critical to the County's evaluation process. The RFP forms must be completed legibly and in their entirety; and all required supplemental information must be furnished and presented in an organized, comprehensive and easy to follow manner.

12.6. Unnecessarily elaborate brochures of other presentations beyond what is considered sufficient to present a complete and effective proposal is not desired.

12.7. By executing the cover sheet (DPMM32), Offeror acknowledges that they have read this Request for Proposal, understand it, and agree to be bound by its terms and conditions.

13. ADDENDA:

13.1. Offerors are reminded that changes to the RFP, in the form of addenda, are often issued between mailto:Support@GoBonfire.com the issue date and within five (5) days before the due date. All addenda shall be signed and submitted before the due date/time or must accompany the proposal.

13.2. Notice of addenda will be posted on eVA and Bonfire. It is the Offeror’s responsibility to monitor the web page for the most current addenda at https://fairfaxcounty.bonfirehub.com.

13.3. The last day to submit questions to be addressed in the addendum will be addressed in Bonfire under “Questions Due Date”. All questions pertaining to this RFP shall be submitted to Shameema.rahman@fairfaxcounty.gov.

14. PROPOSAL ACCEPTANCE PERIOD:

14.1. Any proposal submitted in response to this solicitation shall be valid for one hundred eighty (180) days. At the end of the days the proposal may be withdrawn at the written request of the offeror.

If the proposal is not withdrawn at that time it remains in effect until an award is made or the solicitation is canceled.

15. BASIS FOR AWARD:

15.1. This Request for Proposal is being utilized for competitive negotiation. Under the competitive negotiation process, a contract may be awarded to the responsible offeror whose proposal is determined to be the most advantageous to the County, taking into consideration price and the evaluation factors set forth in the Request for Proposal. The County reserves the right to make multiple awards as a result of this solicitation.

15.2. A Selection Advisory Committee has been established to review and evaluate all proposals submitted in response to this Request for Proposal. The Committee shall conduct a preliminary evaluation of all proposals on the basis of the information provided with the proposal, and the evaluation criteria listed below. Based upon this review, the cost proposals of the highest rated offeror(s) will then be reviewed.

15.3. No Offeror, including any of their representatives, subcontractors, affiliates and interested parties, shall contact any member of the Selection Advisory Committee or any person involved in the evaluation of the proposals. Selection Advisory Committee members will refer any and all calls related to this procurement to the procurement official named in 3.1 above. Failure to comply with this directive may, at the sole discretion of the County, result in the disqualification of an offeror from the procurement process.

15.4. Based on the results of the preliminary evaluation, the highest rated offeror(s) may be invited by the County Purchasing Agent to make oral presentations to the Selection Advisory Committee.

This committee will then conduct a final evaluation of the proposals. Selection shall be made of two or more offerors deemed to be fully qualified and best suited among those submitting proposals, on the basis of the factors involved in the Request for Proposal, including price if so stated in the Request for Proposal. Negotiations shall then be conducted with each of the offerors so selected. After negotiations have been conducted with each offeror so selected, the County shall select the offeror which, in its opinion, has made the best proposal, and shall award the contract to that offeror.

15.5. Should the County determine in writing and in its sole discretion that only one offeror is fully qualified, or that one offeror is clearly more highly qualified than the others under consideration, a contract may be negotiated and awarded to that offeror. The Committee will make appropriate recommendations to the County Executive and Board of Supervisors, if appropriate, prior to actual award of contract.

15.6. Proposal Evaluation Criteria

The following factors will be considered in the award of this contract:

Evaluation Criteria Description Weight (%)

Statement of Qualification a. (Special Provision, Paragraph 6.1 through 6.3 and 10%

Commented [SR1]: We need section/paragraph references for the evaluation criteria.

mailto:Shameema.rahman@fairfaxcounty.gov

Evaluation Criteria Description Weight (%)

Paragraph 7.

Chemical Performance & Effectiveness

b. Demonstrated ability to mitigate H₂S and prevent corrosion; includes case studies or pilot data (Technical Requirements – Section 1 and Section 2 as applicable)

15%

Equipment & Instrumentation Compatibility

c. Suitability of feed systems, storage, and monitoring tools; ease of integration with County assets (Technical Requirements – Section 1 and Section 2 as applicable)

15%

Dosing Rate and Monitoring/Reporting Capabilities

d. Charged on a per-gallon basis of product applied, calibrated to site-specific flow conditions and odor load, with adjustments documented through routine performance monitoring and vendor reporting.

e. Ability to track H₂S levels, analyze trends, and provide actionable insights via web-based tools (Technical Requirements – Section 1 and Section 2 as applicable)

15%

Service & Support Plan (Including Transition & Implementation Strategy)

f. Monthly maintenance, sampling, spill response, technical support, and communication protocols

g. Clarity and feasibility of equipment replacement plans;

coordination with incumbent vendor (Technical Requirements – Section 1 and Section 2 as applicable)

20%

Cost Proposal Total cost of chemical, equipment, and services; includes separate line item for equipment replacement (Special Provisions Section 8 and Appendix B)

25%

15.7. Fairfax County reserves the right to make on-site visitations to assess the capabilities of individual offerors and to contact references provided with the proposal.

15.8. The County Purchasing Agent may arrange for discussions with firms submitting proposals, if required, for the purpose of obtaining additional information or clarification.

15.9. Offerors are advised that, in the event of receipt of an adequate number of proposals, which, in the opinion of the County Purchasing Agent, require no clarifications and/or supplementary information, such proposals may be evaluated without further discussion. Consequently, offerors should provide complete, thorough proposals with the offerors most favorable terms. Should proposals require additional clarification and/or supplementary information, offerors should submit such additional material in a timely manner.

15.10. Proposals which, after discussion and submission of additional clarification and/or supplementary information, are determined to meet the specifications of this Request for Proposal will be classified as "acceptable". Proposals found not to be acceptable will be classified as "unacceptable" and no further discussion concerning same will be conducted.

15.11. The County may cancel this Request for Proposal or reject proposals at any time prior to an award, and is not required to furnish a statement of the reasons why a particular proposal was not deemed to be the most advantageous.

16. INSURANCE:

16.1. The Contractor is responsible for its work and every part thereof, and for all materials, tools, equipment, appliances, and property of any and all description used in connection therewith. The Contractor assumes all risk of direct and indirect damage or injury to the property or persons used or employed on or in connection with the work contracted for, and of all damage or injury to any person or property wherever located, resulting from any action, omission, commission or operation under the contract.

16.2. The Contractor must during the continuance of all work under the contract provide the following:

a. Statutory Workers' Compensation and Employer's Liability insurance in limits of not less than $1,000,000 to protect the Contractor from any liability or damages for any injuries (including death and disability) to any and all of its employees, including any and all liability or damage which may arise by virtue of any statute or law in force within the Commonwealth of Virginia.

b. Commercial General Liability insurance in the amount of $1,000,000 per occurrence, $2,000,000 in aggregate, to protect the Contractor, its subcontractors, and the interest of the County, its officers and employees against any and all injuries to third part ies, including bodily injury and personal injury, wherever located, resulting from any action or operation under the contract or in connection with the contracted work.

c. Owned, non-owned, and hired Automobile Liability insurance, in the amount of $1,000,000 per occurrence/aggregate, including property damage, covering all owned, non-owned, borrowed, leased, or rented vehicles operated by the Contractor. In addition, all mobile equipment used by the Contractor in connection with the contracted work, will be insured under either a standard Automobile Liability policy, or a Commercial General Liability policy .

16.3. Liability Insurance "Claims Made" basis:

1) If the liability insurance purchased by the Contractor has been issued on a "claims made" basis, the Contractor must comply with the following additional conditions. The limit of liability and the extensions to be included as described previously in these provisions, remain the same.

2) The Contractor must either:

i. Agree to provide certificates of insurance evidencing the above coverage for a period of two years after final payment for the contract. This certificate shall evidence a "retroactive date" no later than the beginning of the contractor's or sub-contractor's work under this contract, or

ii. Purchase the extended reporting period endorsement for the policy or policies in force during the term of this contract and evidence the purchase of this extended reporting period endorsement by means of a certificate of insurance or a copy of the endorsement itself.

16.4. Liability insurance may be arranged by a combination of primary and excess or umbrella policies.

16.5. Any deductibles and/or self-insured retentions greater than $50,000 must be disclosed to and approved by the County’s Risk manager prior to the commencement of services. Use of large deductibles and/or self-insured retentions will require proof of financial ability as determined by the County.

16.6. After a period of five-years from Agreement Date, the County may reasonably require higher limits of insurance or additional insurance coverage against other hazards for which insurance is reasonably obtainable and which, at the time, are commonly insured against in the case of similar properties conducting similar activities within the geographic area of the Property, whether or not such additional insurance requirements are otherwise described or contemplated herein.

16.7. The Contractor agrees to provide insurance issued by companies admitted within the Commonwealth of Virginia, with the Best's Key Rating of at least A: VII.

16.8. European markets including those based in London, and the domestic surplus lines markets that operate on a non-admitted basis are exempt from this requirement provided that the Contractor's broker can provide financial data to establish that a market is equal to or exceeds the financial strengths associated with the A.M. Best's rating of A: VII or better.

16.9. The Contractor will provide an original, signed Certificate of Insurance citing the contract number and such endorsements as prescribed herein and The County of Fairfax, its officers, employees and agents shall be named as an “additional insured” for all l iability policies and it shall be stated on the Insurance Certificate that this coverage “is primary to all other coverage the County may possess.”

16.10. The Contractor will secure and maintain all insurance certificates of its subcontractors, which shall be made available to the County on demand.

16.11. Contractor waives and must require (by endorsement or otherwise) all its insurers to waive subrogation rights against the County and other additional insureds for losses paid under the insurance policies required by this Contract or other insurance applicable to the Contractor or its subcontractors. The waiver must apply to all deductibles and/or self-insured retentions applicable to the required or any other insurance maintained by the Contractor or its subcontractors. Where permitted by law, Contractor must require similar written express waivers of subrogation and insurance clauses from each of its subcontractors.

16.12. The Contractor will provide on demand certified copies of all insurance policies related to the contract within ten business days of demand by the County. These certified copies will be sent to the County from the Contractor's insurance agent or representative.

16.13. No change, cancellation, or non-renewal shall be made in any insurance coverage without a 30-day written notice to the County. The Contractor shall furnish a new certificate prior to any change or cancellation date. The failure of the Contractor to deliver a new and valid certificate may result in suspension of all payments until the new certificate is furnished.

16.14. Compliance by the Contractor and all subcontractors with the foregoing requirements as to carrying insurance shall not relieve the Contractor and all subcontractors of their liabilities provisions of the contract.

16.15. Nothing contained in the specifications shall be construed as creating any contractual relationship between any subcontractor and the County. The Contractor is as fully responsible to the County for the acts and omissions of the subcontractors and of persons employed by the Contractor as it is for acts and omissions of person directly employed by Contractor.

16.16. Precaution shall be exercised at all times for the protection of persons (including employees) and property.

16.17. The Contractor and all subcontractors are to comply with applicable federal, state, and local occupational safety and health requirements, including, but not limited to, the Occupational Safety and Health Act of 1970, Public Law 91-596, as it may apply to this contract.

17. METHOD OF ORDERING:

17.1. The County may use two (2) different methods of placing orders from the final contract: Purchase Orders (PO’s) and approved County procurement cards.

17.2. A Purchase Order (PO) may be issued to the contractor on behalf of the County agency ordering the items/services covered under this contract. The purchase order indicates that sufficient funds have been obligated as required by Title 15.2-1238 of the Code of the Commonwealth of Virginia.

17.3. Procurement Card orders and payments may also be made by the use of a Fairfax County or Fairfax County Public Schools “Procurement” Card. The Procurement Card is currently a Master Card. Contractors are encouraged to accept this method of receiving orders.

17.4. Regardless of the method of ordering used, solely the contract and any modification determine performance time and dates.

17.5. Performance under this contract is not to begin until receipt of the purchase order, Procurement Card order, or other notification to proceed by the County Purchasing Agent and/or County agency to proceed. Purchase requisitions shall not be used for placing orders.

18. REPORTS AND INVOICING:

18.1. The Contractor must maintain all records in compliance with federal and state regulations. The Contractor(s) must submit to each program administrator, monthly statistical reports and an annual tabulated report.

18.2. The Contractor must invoice each County department using the final contract separately.

Invoices for all users of the contract must meet County requirements, unless otherwise indicated.

The Contractor must send each department an itemized monthly invoice (or as agreed to between the parties), which must include the information listed below:

a. Contractor’s name

b. Contract Number

c. Purchase Order Number

d. The name of the County department

e. Date of services

f. The type of services; and,

g. The itemized cost for each item/service.

18.3. County departments must receive monthly invoices by the 10th of each month following the month the Contractor provided the service. In addition, the Contractor will provide each County department a monthly and year-to-date utilization report which lists all information shown above in paragraph 18.2, a-g. The Contractor will mail the invoices and the utilization reports to the individuals identified in the final contract.

19. CHANGES:

19.1. Fairfax County may, at any time, by written order, require changes in the services to be performed by the Contractor. If such changes cause an increase or decrease in the Contractors cost of, or time required for, performance of any services under this contract, an equitable adjustment shall be made, and the contract shall be modified in writing accordingly. The County Purchasing Agent must approve all work that is beyond the scope of this Request for Proposal.

19.2. No services for which an additional cost or fee will be charged by the Contractor shall be furnished without the prior written authorization of the Fairfax County Purchasing Agent.

20. DELAYS AND SUSPENSIONS:

20.1. The County may direct the Contractor, in writing, to suspend, delay, or interrupt all or any part of the work of this contract for the period of time deemed appropriate for the convenience of the County. The County will extend the Contractor's time of completion by a period of time that in the discretion of the Purchasing Agent is reasonably suited for completion of work. The County may further amend the contract by mutual agreement for any increase in the cost of performance of the contract (excluding profit) resulting solely from the delay or suspension of the contract. No adjustment shall be made under this clause for any delay or interruption resulting from any other cause, including the fault or negligence of the Contractor.

20.2. If the County does not direct the Contractor, in writing, to suspend, delay, or interrupt the contract, the Contractor must give the County Purchasing Agent written notice if Fairfax County fails to provide data or services that are required for contract completion by the Contractor. The County may extend the Contractor's time of completion by a period of time that in the discretion of the Purchasing Agent is reasonably suited for completion of work. The County may further amend the contract by mutual agreement for any increase in the cost of performance of the contract (excluding profit) resulting solely from the delay or suspension of the contract. No adjustment shall be made under this clause for any delay or interruption resulting from any other cause, including the fault or negligence of the Contractor.

20.3. The Contractor shall continue its work on other phases of the project or contract, if in the sole discretion of the Purchasing Agent such work is not impacted by the County’s delay, suspension, or interruption. All changes to the work plan or project milestones shall be reflected in writing as a contract amendment.

21. ACCESS TO AND INSPECTION OF WORK:

21.1. The Fairfax County Purchasing Agent and using agencies will, at all times, have access to the work being performed under this contract wherever it may be in progress or preparation.

22. DATA SOURCES:

22.1. The County will provide the Contractor all available data possessed by the County that relates to this contract. However, the Contractor is responsible for all costs for acquiring other data or processing, analyzing or evaluating County data.

23. SAFEGUARDS OF INFORMATION:

23.1. Unless approved in writing by the County Purchasing Agent, the Contractor may not sell or give to any individual or organization any information, reports, or other materials given to, prepared or assembled by the Contractor under the final contract.

24. ORDER OF PRECEDENCE:

24.1. In the event of conflict, the Acceptance Agreement (provided at contract award) and the Special Provisions of this contract shall take precedence over the General Conditions and Instructions to Bidders, (Appendix A).

25. SUBCONTRACTING:

25.1. If one or more subcontractors are required, the contractor is encouraged to utilize small, minority-owned, and women-owned business enterprises. For assistance in finding subcontractors, contact the Virginia Department of Small Business and Supplier Diversity https://www.sbsd.virginia.gov; local chambers of commerce and other business organizations.

26. USE OF CONTRACT BY OTHER PUBLIC BODIES:

26.1. Offerors are advised that the resultant contract(s) may be extended, with the authorization of the Offeror, to other public bodies, or public agencies or institutions of the United States to permit their use of the contract at the same prices and/or discounts and terms of the resulting contract.

If any other public body decides to use the final contract, the Contractor(s) must deal directly with that public body concerning the placement of orders, issuance of purchase orders, contractual disputes, invoicing and payment. The County of Fairfax acts only as the "Contracting Agent" for these public bodies. Failure to extend a contract to any public body will have no effect on consideration of your offer.

26.2. It is the Contractors responsibility to notify the public body(s) of the availability of the contract(s).

26.3. Other public bodies desiring to use this contract will need to make their own legal determinations as to whether the use of this contract is consistent with their laws, regulations, and other policies.

26.4. Each public body has the option of executing a separate contract with the Contractor(s). Public bodies may add terms and conditions required by statute, ordinances, and regulations, to the extent that they do not conflict with the contracts terms and conditions. If, when preparing such a contract, the general terms and conditions of a public body are unacceptable to the Contractor, the Contractor may withdraw its extension of the award to that public body.

26.5. Fairfax County shall not be held liable for any costs or damages incurred by another public body as a result of any award extended to that public body by the Contractor.

27. NEWS RELEASE BY VENDORS:

27.1. As a matter of policy, the County does not endorse the products or services of a contractor. News https://www.sbsd.virginia.gov/ releases concerning any resultant contract from this solicitation will not be made by a contractor without the prior written approval of the County. All proposed news releases will be routed to the Purchasing Agent for review and approval.

28. AMERICANS WITH DISABILITIES ACT REQUIREMENTS:

28.1. Fairfax County Government is fully committed to the Americans with Disabilities Act (ADA) which guarantees non-discrimination and equal access for persons with disabilities in employment, public accommodations, transportation, and all County programs, activities and services. Fairfax County government contractors, subcontractors, vendors, and/or suppliers are subject to this ADA policy. All individuals having any County contractual agreement must make the same commitment. Your acceptance of this contract acknowledges your commitment and compliance with ADA.

28.2. Fairfax County is committed to a policy of nondiscrimination in all County programs, services, and activities and will provide reasonable accommodations upon request. Bidders requesting special accommodations should call the Department ADA representative at (703) 324-3201 or TTY 1- 800-828-1140. Please allow seven (7) working days in advance of the event to make the necessary arrangements.

29. STATE CORPORATION COMMISSION IDENTIFICATION NUMBER:

29.1. Pursuant to Code of Virginia, §2.2-4311.2 subsection B, a bidder or offeror organized or authorized to transact business in the Commonwealth pursuant to Title 13.1 or Title 50 is required to include in its bid or proposal the identification number issued to it by the State Corporation Commission (SCC). Any bidder or offeror that is not required to be authorized to transact business in the Commonwealth as a foreign business entity under Title 13.1 or Title 50 or as otherwise required by law is required to include in its bid or proposal a statement describing why the bidder or offeror is not required to be so authorized. Any bidder or offeror that fails to provide the required information may not receive an award.

TECHNICAL REQUIREMENTS

a. CHEMICAL REQUIREMENTS: Liquid phase chemicals proposed by the vendor(s) must be in the chemical family of oxidizers and nitrates and precipitants. Fairfax County Department of Environmental Services and Public Works have deemed the following chemicals and combinations to be low-medium risk, thereby being approved for use in the wastewater collection system. Alternative proposals must be approved in advance or the proposal will not be considered. The table is as follows:

Chemical Trade Name Mode of Operation

Oxidizers and Nitrates

Calcium Ammonium Nitrate BIOXIDE® (37%) Medium acting (>90 min) Chemical is consumed in the sewer

Calcium ammonium nitrate and sodium chlorite (25- 37%/4%)

BIOXIDE® + 71 Prevents or removes precursors to odor causing compounds

Calcium ammonium nitrate and anthraquinone

BIOXIDE® AQ Prevents or removes precursors to odor causing compounds and acts as a bacteria inhibitor

Precipitants

Ferrous Sulfate (32%) Odophos® Precipitant

Ferric/ous Sulfate with Buffers SulFeLox Precipitant

Ferrous or Ferric Chloride Precipitant

b. STORAGE SPECIFICATIONS & CONTRACTOR’S RESPONSIBILITIES: The storage and feed system shall contain the following as a minimum standard:

i. High Density Cross-linked Polyethylene Storage Tank:

2,800-gallon High Density Cross-linked Polyethylene storage tank with a minimum specific gravity rating of 1.65.

ii. Lockable Stainless-steel Enclosure:

Programmable Logic Controller (PLC) based feed control system enclosed in a lockable stainless-steel enclosure containing the following:

a. NEMA 4X Stainless Steel Control Panel

b. Calibration Cylinder

c. Disconnect Switch

d. Ground Fault Receptacle

e. Colling Fan

f. Appropriate Tank Level Indicators

g. Set of Contacts with surge arrestor to accept Tank Level device

h. Cellular Modem for remote communication

i. Panel shall have the capability to accept a Resistance Temperature Device

j. Back pressure and pressure relief valves, as needed

c. PROCESS DESCRIPTION:

I. The supplied material shall enhance the natural metabolic activity of facultative bacteria present in wastewater, facilitating the biochemical oxidation of hydrogen sulfide and other reduced sulfur compounds responsible for odor.

II. The material shall contain chemical constituents that support and stimulate this microbial mechanism, and shall be compatible with the existing, approved dosing formula and delivery infrastructure.

III. The formulation must be chemically stable under typical wastewater conditions, ensuring sustained sulfide removal, including contributions from downstream side streams—beyond the initial application point.

IV. In addition to odor mitigation, the biochemical process shall contribute to a measurable reduction in biochemical oxygen demand (BOD), thereby improving overall wastewater quality.

V. Chemical Feed Pumps Appropriately Sized for Applications.

Contractor shall provide an Advanced Dosing Controller (Versadose™ LT, or equal) at facilities designated as requiring doing controllers. The Advanced Dosing Controller feed system must be capable of reducing chemical usage by at least 10% versus typical 2-timer systems by dosing more closely to the sulfide…