REQUEST FOR BID NO. 26-159-B

ALUMINUM CHLOROHYDRATE

PRE-BID MEETING:

Tuesday, July 14, 2026, at 9:00 AM Central

BID SUBMITTALS ARE DUE PRIOR TO:

Wednesday, July 29, 2026, at 2:00 PM Central

BID MAY BE SUBMITTED ELECTRONICALLY TO (Registration is free):

ntmwd.bonfirehub.com

DOCUMENTS MAY BE DELIVERED TO:

NORTH TEXAS MUNICIPAL WATER DISTRICT

PROCUREMENT DEPARTMENT

501 E. BROWN STREET

WYLIE, TX 75098

DOCUMENTS MAY BE MAILED TO:

PROCUREMENT DEPARTMENT

PO BOX 2408

WYLIE, TX 75098

NORTH TEXAS MUNICIPAL WATER DISTRICT CONTACT:

Nancy Leyva nleyva@ntmwd.com

INSTRUCTIONS TO BIDDERS

1. REQUIRED INFORMATION

The North Texas Municipal Water District’s (NTMWD) solicitation packets contain various documents that require completion by the bidder. Said information must be completed and submitted prior to the closing date and time for the submission of bids. Failure to provide required information may result in the rejection of your bid.

2. SUBMISSION OF BIDS

A response to a Request for Bid (RFB) may be submitted to NTMWD by any of the following means:

• Electronically submitted via ntmwd.bonfirehub.com;

• Hand delivered to the North Texas Municipal Water District Administrative Building, 501. E. Brown Street, Wylie, Texas 75098;

• Mailed to the North Texas Municipal Water District, Procurement Department, at P.O. Box 2408, Wylie, Texas 75098;

• No oral, telegraphic, telephonic, or facsimile submittals will be considered or accepted.

3. OFFICIAL TIME & LATE SUBMITTALS

The time clock at the North Texas Municipal Water District front receptionist area shall be the official time of receipt for all responses to a RFB submitted in hard copy paper form. All submittals received after the submission deadline shall be rejected. Absolutely no late submittals will be considered. Bidder will be notified of the rejected late bid submission and will advise NTMWD as bidder’s desired disposition of the bid submittal by either (1) pick up, (2) return at bidder’s expense, or (3) destroyed with written authorization of the bidder. If bids are sent by USPS to the Administration Building, the bidder shall be responsible for actual delivery of the bid to the Administration Building before the advertised date and hour for opening of bids. If mail is delayed either in the postal service or in the internal mail system of NTMWD beyond the date and hour set for the bid opening, bids thus delayed will not be considered and will be disposed of as authorized.

4. NOTIFICATION

NTMWD uses www.bonfire.com and The Wylie News to disseminate notification of bid opportunities. NTMWD shall not be responsible for receipt of notification and information from any source other than those listed above. It shall be the Bidder’s responsibility to verify the validity of all information received by sources other than those listed.

5. ELECTRONIC SUBMITTALS

NTMWD exclusively uses Bonfire for the electronic notification and dissemination of all bids. The receipt of documents through any other company may result in the receipt of incomplete specifications and/or addenda.

NTMWD accepts no responsibility for the receipt and/or notification of solicitations through any other company.

To streamline the solicitation process, all Bidders are highly encouraged to utilize the Bonfire system. There is no cost to the Bidder to download or respond to NTMWD solicitations on Bonfire. Even though electronic response submission are recommended, Bidders may continue to submit a hard copy, paper bid directly to NTMWD if desired.

6. MODIFICATION AND WITHDRAWAL

Bids may be withdrawn at any time prior to the official opening of the bids. Alterations made by a bidder before opening time must be initialed by bidder guaranteeing authenticity and must be resealed. After the official opening, bids become the property of NTMWD and may not be amended, altered, or withdrawn without the authorization of the Procurement Manager.

7. BID OPENINGS

All submittals will be opened and presented according to the legal requirements for the type of solicitation at the designated time and place specified in the solicitation. However, the reading of a bid at the opening should not be construed as a comment on the responsiveness of such bid or as any indication that NTMWD accepts such bid as responsive. NTMWD will make a determination as to the responsiveness of bids submitted based upon compliance with all applicable laws, NTMWD purchasing guidelines, and project documents, including but not limited to the specifications and required submittal documents. NTMWD will notify the successful bidder upon award of the contract and, according to State law, all bids received will be available for inspection at that time.

8. BID SUBMISSIONS

Due care and diligence has been used in preparation of the information contained in this request for bids, and the information is believed to be substantially correct. However, it is Bidder’s responsibility to determine the full extent http://www.bonfire.com/ of its exposure and to verify all information presented in the request for bids. NTMWD and its representatives are not responsible for any errors or omissions in these specifications. Additionally NTMWD and its representatives are not responsible for Bidder’s failure to determine the full extent of the exposure and risk associated with this request for bids.

This bid is issued in compliance with the NTMWD Purchasing Policy and with authorization from NTMWD’s Board of Directors.

A. Bids will be considered irregular if they show any omissions, alteration of form, additions or conditions not called for, or other irregularities of any kind. However, NTMWD reserves the right to waive any irregularities and to make one or more awards in the best interest of NTMWD.

B. NTMWD reserves the right to accept or reject in part or in whole any bids submitted and to waive any technicalities in the best interest of NTMWD. Bids may be rejected, among other reasons, for any of the following specific reasons:

• Bids containing any irregularities, and

• Unbalanced value of any items.

C. Bidders may be disqualified and their submissions not considered, among other reasons, for any of the following specific reasons:

• If NTMWD believes collusion exists among the bidders;

• Reasonable grounds for believing that any bidder has an interest in more than one bid for the work contemplated;

• The bidder having an interest in any litigation against NTMWD;

• The bidder being in arrears on any existing contract or having defaulted on a previous contract;

• Lack of competency as revealed by a financial statement, experience, equipment, questionnaires, etc.;

and

• Uncompleted work which, in the sole judgment of NTMWD, will prevent or hinder the prompt completion of additional work, if awarded.

D. It is the bidders’ sole responsibility to print and review all pages of the bid document, attachments, questions and their responses, addenda and special notices.

E. When in the best interest of NTMWD, NTMWD reserves the right to request additional information or clarification from bidders to determine bidders’ ability to meet the requirements specified by this bid.

F. NTMWD reserves the right to reject any of all submissions without cause prior to award, to waive formalities, or to proceed otherwise when in the best interest of the NTMWD.

9. EXAMINATION OF CONTRACT DOCUMENTS AND SITE

A. Bidders must examine the Solicitation, make observations and investigations, correlate knowledge and observations with the requirements of the Solicitation and consider these in preparation of a bid for the project.

B. Bidders must read the Solicitation and related technical data and reports thoroughly. Use a complete set of Solicitation Documents in preparing Bids. Assume responsibility for errors or misinterpretations resulting from the use of partial or incomplete documents.

C. Bidders may visit the sites to become familiar with general, local and site conditions that may affect cost, progress, or performance of the work in any manner.

D. Bidders must become familiar with federal, state and local laws, ordinances, rules, and regulations affecting cost, progress, or performance of the work.

E. Bidders should make additional visits and investigations as necessary to determine the bid price for performance of the work in compliance with the terms of the Solicitation before submitting a bid. Cost associated with these investigations is to be paid by the Bidders.

F. By the submission of a Bid for this project, Bidders acknowledge sole responsibility for job site safety.

G. The submission of a Bid is an incontrovertible representation by the Bidder that Bidder has complied with every requirement of this Section.

10. UNIT OF MEASURE

Responses to the RFB must be submitted in the units of measure specified in the bid pricing form.

11. INTERPRETATIONS

Bidders must submit all questions about the meaning or intent of the Solicitation to NTMWD in writing by the question due date and time. Replies are issued by Addenda to all parties recorded as having received the bidding documents. Only questions answered by formal written Addenda are binding. Oral and other interpretations or clarifications will be without legal effect.

12. ADDENDA

Any interpretations, corrections, or changes to this bid will be made by written addenda. Sole issuing authority of addenda shall be vested in NTMWD’s Procurement Department. Addenda will be issued via ntmwd.bonfirehub.com.

It is the responsibility of the bidder to ensure receipt of all addenda, and acknowledge by signing and including with the bid submittal.

13. CONFIDENTIALITY

A. Any material that is to be considered confidential must be clearly marked as such and shall be treated as confidential to the extent allowable under Chapter 552, Government Code.

B. The Texas Public Information Act gives the public the right to request access to government information, subject to certain narrow exceptions. NTMWD is an entity subject to this Act. Therefore, please be advised that your company's declaration that certain information submitted in response to a bid request is "confidential" will not be treated as such if NTMWD receives a request for a copy of the bid proposal. NTMWD will of course make an effort to inform your company of such a request and to provide you with an opportunity to object to the release of any proprietary information, but NTMWD cannot and will not make an agreement to withhold information from the public contrary to NTMWD’s responsibilities under the Act.

C. To the extent your response is incorporated into the contract, that contract will become an official record available for public inspection.

D. Bids shall be opened so as to avoid disclosure of contents to competing bidders and kept secret during the process of awarding a contract. All bids that have been submitted shall be open for public inspection after the contract is awarded, except for trade secrets and confidential information contained in the submission and identified as such.

14. BID TABULATIONS

As-Read Bid tabulations will be electronically posted to ntmwd.bonfire.com within forty-eight (48) hours after the bid opening.

15. PREPARATION COSTS

NTMWD will not be liable for any costs associated with the preparation, transmittal, or presentation of any bids or materials submitted in response to this bid.

16. TAXES

NTMWD is exempt from Federal Excise and State Sales Taxes. Tax must not be included in the pricing.

17. PRICING

Prices must be firm for a minimum of ninety (90) days from the date of the bid closing. In the case of an annual contract, the prices must remain firm for the period as specified in the solicitation.

18. BIDDER QUALIFICATIONS

A prospective Bidder must meet the following minimum requirements:

• Must have adequate financial resources, or the ability to obtain such resources as required;

• Must be able to comply with the required or proposed delivery/completion schedule;

• Must have a satisfactory record of performance;

• Must have a satisfactory record of integrity and ethics;

• Must be otherwise qualified and eligible to receive an award;

• NTMWD may request representation and other information sufficient to determine the Bidder’s ability to meet these minimum standards listed above.

19. AWARD OF CONTRACT

NTMWD reserves the right to award this contract by one of the following methods. The method selected will be in the best interest of NTMWD, as determined by the Procurement Manager.

• To the lowest responsible Bidder(s), bidding all items and meeting all specifications;

• To one or more Bidders, if deemed in the best interest of NTMWD;

• To the lowest responsible Bidder(s) meeting specifications per line item;

• If specified, to the low Bidder(s) meeting specifications, per category. To qualify for an award of a category, a Bidder must bid all items within that category. If all items of a category are not bid by all Bidders, award shall be made in the best interest of NTMWD;

• To the Bidder(s) who provide the goods or services specified in the solicitation at the best value to

NTMWD.

• NTMWD reserves the right to compare all bids against any State and/or Interlocal contracts in determination of the award of this bid.

SPECIAL CONDITIONS

1. GENERAL INFORMATION

The North Texas Municipal Water District (NTMWD) is soliciting sealed bids for an annual contract purchase of Aluminum Chlorohydrate (ACH) in accordance with the specifications provided herein.

2. PRE-BID MEETING

A pre-bid meeting will be on Tuesday, July 14, 2026, at 9:00 AM Central via Webex. It is highly recommended that all bidders attend the pre-bid meeting. Bidders may ask questions about the specification and bid process during the meeting. Questions and answers will be made in the presence of all attendees. If a question cannot be answered during the meeting, answers will be provided via a written addendum and distributed through ntmwd.bonfirehub.com.

URL:

https://ntmwd.webex.com/join/nleyva

OR

TEL: 1-415-655-0001 or 844-621-3956 Access Code: 2590 090 3440

3. RAW WATER SAMPLE

The raw water source used for evaluating bids will be from Leonard WTP. If a raw water sample is desired to provide the sample dosage range with your bid, Bidder shall supply a sample container and shipping package with prepaid shipping label. Shipping package shall include Bidder’s name, product name, and Bid No. 26-159-B. Provide the container and shipping package to the following address:

North Texas Municipal Water District Leonard WTP Attn: Andrew Brower 361 County Road 4965 Leonard, Texas 75452

4. DURATION OF AGREEMENT

A. The initial term of this agreement shall commence on the date of the last signatory and shall be for a period of two (2) years. The agreement will automatically renew under the same pricing, terms, and conditions for three

(3) additional one-year periods unless NTMWD provides Contractor with written notice of its intent to terminate the agreement at least sixty (60) days prior to the expiration of the current term. If said notice is given by NTMWD, the agreement shall terminate at the conclusion of the current one-year term. In no event shall the entire term of this agreement exceed five (5) years.

B. Prices changes are subject to the Price Adjustment provisions of this Contract.

C. NTMWD reserves the option to temporarily extend this service for an additional ninety (90) days from its expiration date for any reason without exercising the renewal options outlined in Section 3(A) herein.

5. BID QUESTIONS & CLARIFICATION

All questions regarding this request for bid shall be submitted in writing on ntmwd.bonfirehub.com no later than 4:00

PM Central on Wednesday, July 15, 2026. All questions will be addressed in an addendum. Questions received after the deadline may not be answered.

6. ESTIMATED ANNUAL CONTRACTS

The quantities specified are estimates of our projected annual requirements. The award of an estimated annual contract allows NTMWD to use the items and services as the requirements and needs of NTMWD arise on an annual basis and during any subsequent renewal period(s). Quantities may be increased beyond the estimated quantities listed in this bid, as necessary, provided funding is available. Quantities may be decreased below the estimated quantities listed in this bid, as necessary, if funding is not available or if items and services are no longer needed. NTMWD is not obligated to pay for or use a minimum or maximum amount of items or services and payment will be made pursuant to the unit prices bid in the contract. The Contractor shall have no claim against NTMWD for anticipated profits for the estimated quantities listed, diminished, or deleted.

https://ntmwd.bonfirehub.com/contracts/36875/people

7. BID SUBMITTAL REQUIREMENTS & OPENING

A. If paper bids are submitted, each firm shall submit one (1) original copy of their bid, including all supporting documentation. Paper bids must clearly show Bid No. 26-159-B. If bids are submitted electronically, the Bidder shall make sure all required supporting documentation is uploaded into the Bonfire system. Failure to provide requested information in this request for bid may result in disqualification from consideration. Bids shall be accepted until 2:00 PM Central Time on Wednesday, July 29, 2026. No late bids will be accepted.

B. The bid opening will be held on the bid due date and time via Webex:

URL:

https://ntmwd.webex.com/join/nleyva

OR

TEL: 1-415-655-0001 or 844-621-3956

Access Code: 2590 090 3440

C. The following documents must be included with this bid. Failure to supply the required forms may deem you non-responsive:

• Bid Signature Form

• Bid Pricing Form

• Safety Data Sheet(s)

• Disaster Recovery Plan

• Laboratory Analysis

• References

The bidder shall provide a sample of their Aluminum Chlorohydrate (ACH) in a one (1) liter leak-proof PP or HDPE bottle within a sturdy, leak-proof secondary container and then packed securely in a strong outer package (e.g., cooler). Sample must be delivered to 501 E. Brown St, Wylie, Texas 75098 by the Bid Due Date and Time.

Package should include Bidder’s Name, product name, Bid number.

8. METHOD OF AWARD

NTMWD’s intent is to award to the lowest responsive, responsible bidder(s) meeting the specifications. Lowest bid will be determined using the procedure for performance adjusted cost in Specifications, 5. Performance Evaluation.

SAFETY DATA SHEETS

The contractor(s) shall furnish Safety Data Sheets (SDS), 29 CFR 1910.1200(g), on all chemicals and hazardous materials specifying the generic and trade name of product, product specification, and full hazard information including receiving and storage hazards. Instructions, special equipment needed for handling, information on approved containers, and instructions for the disposal of the material are also required. The SDS, instructions and information must be included with each shipment, to each location under the contract and to that location again if any of the following occur:

• Any change in composition of the product

• Any change in manufacturing / production / packaging process

• Any change in the distributor’s supplier

• Any change in the label, packaging, brand name

9. LABORATORY ANALYSIS

The contractor(s) shall furnish, by attachment to the Bid, a typical analysis of aluminum chlorohydrate (ACH). This analysis shall have been made using the methods described in AWWA Standard B408-25 or the most current version. The contractor(s), on an annual basis, or at any time there is a change in the manufacturing practices through the term of this Contract, shall submit such typical analysis.

10. DISASTER RECOVERY PLAN

The Contractor will provide, as part of this bid submittal, a Disaster Recovery Plan. The Contractor will attach, as a separate document, the Disaster Recovery Plan in the order as outlined below. The plan will thoroughly describe the following:

A. How your company will provide product to NTMWD on a timely basis in the event of disruption in the flow of the product, or raw materials needed to produce it, to the distribution facility that is primarily expected to provide the chemical.

B. How your company will handle the following at your distribution facility: power outages, spills, scheduled and unscheduled plant shut downs, strikes, bad weather, large increases in demand for product, logistics (rail, trucking etc.) to and from your distribution facilities, contract hauler issues, plant personnel turnover, etc.

C. Identify all sources of raw materials required to manufacture the product and indicate whether they are of domestic or foreign origin. Indicate whether raw materials are railed or trucked to your local facility and if the product is manufactured locally? List all the locations, manufacturer names, contacts, and telephone numbers, etc.

D. Provide a copy of your company’s safety plan, or your contract hauler’s safety plan, as it relates to driver selection and training, spill response, and emergency procedures when transporting and off-loading chemicals at client sites.

E. List all the key personnel at your distribution facility, including: telephone numbers, fax numbers, cell numbers, emergency numbers, toll free numbers, etc.

F. Any other factors which might be helpful in the event of implementing this Disaster Recovery Plan.

G. Identify the primary and all secondary suppliers of the product.

H. Your company’s security plan and/or procedures, or your contract hauler’s security plan and/or procedures, as it relates to the security of chemicals being produced at your facilities and transported by your drivers or drivers of your contract hauler.

NTMWD will not be responsible for any additional costs associated with this Disaster Recovery Plan in the event of its implementation.

[END OF SECTION]

SPECIFICATIONS

1. QUALITY

Aluminum chlorohydrate shall be used in the primary coagulation processes at NTMWD Water Treatment Plants. It is expected to be a clear to slightly hazy solution, free of visible foreign matter or sediment. The aluminum chlorohydrate shall be certified as meeting ANSI/NSF Standard 60: Drinking Water Treatment Chemicals – Health Effects. The aluminum chlorohydrate shall meet or exceed all requirements of AWWA Standard No. B408-25 or newer.

The material shall be commonly known as aluminum chlorohydrate, a solution generally containing about 23 percent by weight of aluminum oxide. Aluminum chlorohydrate shall be free from extraneous materials and shall be transported and delivered at such concentration and temperature that no freezing occurs. The liquid shall be suitable for feeding by means of metering pumps and other pumps and other metering devices constructed of corrosion- resistant materials.

Basic Requirements:

• Al2O3: 22.5% to 25%

• pH Range: >2.5

• Viscosity: <100 cps

• Specific Gravity: 1.3 to 1.4

• Basicity: 80% to 83%

• Turbidity: <50

2. ANSI/NSF CERTIFICATION

By submitting a response to this bid, the contractor warrants that the delivered product is in compliance with ANSI/NSF 60 Standard for Drinking Water Additives. The contractor(s) must maintain compliance with ANSI/NSF 60 Standard for Drinking Water Additives for the duration of the contract period.

3. WARRANTY

By submitting a response to this bid, the contractor warrants that all deliveries made under this contract are of good quality, as specified in this document, and conforms to AWWA Standard B408-25. The material shall also conform to ANSI/NSF 60: Drinking Water Treatment Chemicals and shall be certified by NSF as meeting this standard.

4. IMPURITIES

Aluminum chlorohydrate supplied in accordance with this standard shall contain no substances in quantities capable of producing deleterious or injurious effects on the health of those consuming water that has been properly treated with aluminum chlorohydrate. Aluminum chlorohydrate shall be manufactured from virgin aluminum material and shall not be a by-product from any other process or be manufactured using materials that are either by-products or waste products. Aluminum chlorohydrate shall not contain specific impurities in excess of the following limit (by weight), for an expected maximum dosage not exceeding 50 mg/L based on aluminum chlorohydrate content. The Water Chemicals Codex should be consulted if alternative impurity limits are to be considered based on varying dosage levels.

Arsenic 50 mg/kg Cadmium 10 mg/kg Chromium 50 mg/kg Lead 50 mg/kg Mercury 2 mg/kg Selenium 10 mg/kg Silver 50 mg/kg

5. PERFORMANCE EVALUATION PROCEDURE:

Bench-scale testing will be performed by a Third-Party selected by NTMWD on each of the ACH samples submitted by Bidders and NTMWD will evaluate each product’s respective performance based on the Third-Party testing results. The raw water source used for evaluating bids will be from Leonard WTP.

The performance of ACH will be compared to the existing plant coagulant, ferric sulfate, and evaluated for relative performance. The optimal ACH dose must provide equal or better performance compared to the existing plant coagulant, ferric sulfate, for the bid to be considered. Once performance is proven, the Performance Adjusted Cost of the ACH will be calculated and the bidder with the lowest Performance Adjusted Cost will be selected.

Performance Testing The ACH provided will be tested against ferric sulfate via jar testing to identify the relative performance of ACH for that water quality. The testing is to be conducted by a Third-Party, to be selected by NTWMD. The Third-Party is required to have two representatives competent in the methodology of conducting jar testing of coagulants. One NTMWD representative is also required to be present to oversee the testing. Prior to testing, NTMWD is to anonymize all ACH products being tested, so the Third-Party is unaware of which vendor’s product is being evaluated. A minimum of two tests are to be conducted to verify the results of the testing. If the Performance Factors (PF) of the two tests are within +/-15% of each other, then the tests will be considered representative. If the two tests differ by a greater amount, a third jar test will be conducted, and the results of the best two of the three tests will be considered.

The procedures for testing are as follows:

• NTMWD has provided the range of key water quality parameters over the past two (2) years (Attachment A) to allow the vendor to provide input on an expected ACH dose range for the water quality. The following raw water information is provided:

o Turbidity o TOC o Temperature o pH o Alkalinity o Historic coagulant dose

• The range of ACH doses is to be selected by the Third-Party, utilizing information such as, but not limited to, previous jar testing and vendor input on the Bid Pricing Form.

• The current dose of ferric sulfate being used for that day’s plant operations is to be determined.

• One round of six (6) jar tests is to be conducted:

o Jar 1 – current day’s optimal dose of ferric sulfate o Jar 2 – minimum dose of ACH range o Jar 3 – 25th percentile of ACH range o Jar 4 – midpoint dose of ACH range o Jar 5 – 75th percentile of ACH range o Jar 6 – maximum dose of ACH range

The ACH performance and optimal ACH dose is to be determined by evaluating remaining dissolved organic carbon (DOC), filterability, and turbidity data. The PF will be calculated to confirm performance relative to ferric sulfate and to compare the overall cost of each of the ACH products tested. The ferric sulfate, as the existing coagulant, will be used as the baseline, with a PF of 1. The PF for each dose of ACH will be calculated in reference to this baseline, with the resulting value being divided by the relevant ferric sulfate value. The PF will be used to evaluate if the ACH dose performed equal to or better than the ferric sulfate. The lowest dose that provided a PF of 1 or less for all parameters tested would be selected as the optimal dose.

The formulas used to determine the percentage difference between jar test trials are:

𝑃𝐹 =

𝑃𝑎𝑟𝑎𝑚𝑒𝑡𝑒𝑟𝐴𝐶𝐻

𝑃𝑎𝑟𝑎𝑚𝑒𝑡𝑒𝑟𝐹𝑒𝑟𝑟𝑖𝑐

𝐴𝑣𝑔 𝑃𝐹 =

𝑃𝐹𝐷𝑂𝐶 + 𝑃𝐹𝑁𝑇𝑈 + 𝑃𝐹𝐹𝑖𝑙𝑡𝑒𝑟𝑎𝑏𝑖𝑙𝑖𝑡𝑦

% 𝐷𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑐𝑒 =

𝐴𝑣𝑔 𝑃𝐹𝑇𝑟𝑖𝑎𝑙 2 − 𝐴𝑣𝑔 𝑃𝐹𝑇𝑟𝑖𝑎𝑙 1

𝐴𝑣𝑔 𝑃𝐹𝑇𝑟𝑖𝑎𝑙 1

𝑋100

See an example evaluation in the following tables:

ACH Dose 1 TOC PF Calculation Example

𝑃𝐹 =

4.0

3.5 = 1.14

ACH Dose 1 Avg PF Calculation Example

𝐴𝑣𝑔 𝑃𝐹 =

1.14 + 1.20 + 0.60

= 0.98

Jar Test 1

Product TOC (mg/L)

PF Turbidity

(NTU)

PF Filterability (Seconds)

PF Avg PF Sufficient?

Ferric 3.5 1.00 1.0 1.00 100 1.00 1.00 NA

Test ACH Dose 1 4.0 1.14 1.2 1.20 60 0.60 0.98 N

Test ACH Dose 2 3.5 1.00 1.0 1.00 70 0.70 0.90 Y

Test ACH Dose 3 3.0 0.86 0.80 0.80 75 0.75 0.80 Y

Test ACH Dose 4 2.5 0.71 0.60 0.60 90 0.90 0.74 Y

Test ACH Dose 5 2.5 0.71 0.60 0.60 100 1.00 0.77 Y

Jar Test 2

Product TOC (mg/L)

PF Turbidity

(NTU)

PF Filterability (Seconds)

PF Avg PF Sufficient?

Ferric 5.0 1.00 1.25 1.00 120 1.00 1.00 NA

Test ACH Dose 1 5.5 1.10 1.40 1.12 60 0.50 0.91 N

Test ACH Dose 2 4.0 0.80 1.25 1.00 80 0.67 0.82 Y

Test ACH Dose 3 3.5 0.70 1.00 0.80 90 0.75 0.75 Y

Test ACH Dose 4 3.0 0.60 0.80 0.64 120 1.00 0.75 Y

Test ACH Dose 5 3.0 0.60 0.80 0.64 150 1.25 0.83 Y

Consistency Analysis

Test ACH Dose 1 Example

% 𝐷𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑐𝑒 =

0.91 − 0.98

0.98 𝑋100 = −7%

Product Jar Test 1 Avg PF

Jar Test 2 Avg PF

Difference

Test ACH Dose 1 0.98 0.91 -7

Test ACH Dose 2 0.90 0.82 -9

Test ACH Dose 3 0.80 0.75 -6

Test ACH Dose 4 0.74 0.75 1

Test ACH Dose 5 0.77 0.83 8

Optimal Dose Selection

Product Jar Test 1 Sufficient?

Jar Test 2 Sufficient?

Optimal Dose?

Test ACH Dose 1 N N N

Test ACH Dose 2 Y Y Y

Test ACH Dose 3 Y Y N

Test ACH Dose 4 Y Y N

Test ACH Dose 5 Y Y N

In the above example, only two jar tests were conducted since average PFs were within +/-15% between Jar Test 1 and Jar Test 2. The dose selected for evaluation will be the lowest dose selected that meets or exceeds the performance of the ferric sulfate. In this case, Dose 2 would be selected since it is the lowest dose that performed equal to or better than ferric sulfate in all tested parameters in both Jar Tests.

Performance Adjusted Cost Determination Once receiving the evaluation data, the District will calculate the Performance Adjusted Cost for each product. The Performance Adjusted Cost is obtained by multiplying the Bid Unit Cost, in units of $/ton of active ACH, and the

Optimal Dose. The ACH with the lowest Performance Adjusted Cost will be deemed as the lowest Bid (if Bid submittal meets all other requirements delineated in the issue for bid). The following formula applies:

𝐵𝑖𝑑 𝑈𝑛𝑖𝑡 𝐶𝑜𝑠𝑡 (

𝑇𝑜𝑛𝑆𝑜𝑙𝑢𝑡𝑖𝑜𝑛

) ∗ 𝑊𝑡% 𝐴𝐶𝐻 ∗ 𝑂𝑝𝑡𝑖𝑚𝑎𝑙 𝐷𝑜𝑠𝑒 (

𝑚𝑔

𝐿 ) = 𝑃𝑒𝑟𝑓𝑜𝑟𝑚𝑎𝑛𝑐𝑒 𝐴𝑑𝑗𝑢𝑠𝑡𝑒𝑑 𝐶𝑜𝑠𝑡 (

$ ∗ 𝑚𝑔

𝑇𝑜𝑛𝐴𝐶𝐻 ∗ 𝐿

See an example evaluation in the table below:

Product Cost ($/Ton- Solution)

Wt% ACH Optimal Dose (mg/L as ACH)

Performance Adjusted Cost

ACH Product 1 2000 50% 25 25,000

ACH Product 2 2500 50% 30 37,500

ACH Product 3 1800 50% 25 22,500

In the above example, ACH Product 3 would be selected as it has the lowest Performance Adjusted Cost.

6. ORDERING PROCEDURES

Orders furnished under this contract will be placed to suit NTMWD’s requirements throughout the contract period.

Orders will be placed by NTMWD authorized representatives via e-mail. The awarded contractor shall provide e-mail address(es) where the orders will be sent. During times of extenuating circumstances NTMWD authorized representatives may place orders via phone call.

Within eight (8) hours of receiving an order, the contractor shall confirm by sending a reply back, via e-mail, to the e-mail address of the requesting treatment plant. The contractor’s confirmation e-mail shall state acceptance of NTMWD’s requested delivery date or shall propose a modified delivery timetable.

Additional orders or order cancellations will be made through the same e-mail exchange.

NTMWD’s aluminum chlorohydrate usage can vary significantly on a day-to-day or week-to-week basis due to changes in weather or other factors. The Contractor shall make all attempts to accommodate these changes in demand.

7. SHIPPING INSTRUCTIONS

Shipments to each of the NTMWD treatment plants shall be via bulk tank truck/trailer. The following information will be provided to NTMWD email prior to delivery or upon arrival to the receiving treatment plant: hatch and connection seal numbers on the tanker

• truck and trailer numbers

• hatch and connection seal numbers

• the Certificate of Analysis

• date and estimated time of arrival

The contractor(s) shall call the applicable treatment plant when the delivery truck leaves the Contractor’s (or contract carrier’s) facilities. All shipping documents shall include the following information:

• product name

• contract number

• truck and trailer numbers

• hatch and connection seal numbers

• the Certificate of Analysis

8. DELIVERY

Packaging and shipping of aluminum chlorohydrate shall conform to current Federal, State, and local regulations.

Aluminum chlorohydrate shall be shipped in bulk tank trailer. NTMWD requires that aluminum chlorohydrate shipment be accompanied by weight certificates from a certified scale. Failure to do so can result in rejection of material by NTMWD. Tank trucks shall be equipped with a self-pressurized pneumatic system and adequate hoses of proper size to connect to NTMWD facilities, system must provide sufficient discharge pressure for transfer to distant or elevated storage tanks. The tanks shall be rubber-lined or made of stainless steel or any other suitable material that will not be corroded by the acidity of the liquid. Tank trucks shall be in suitable condition for hauling aluminum chlorohydrate and shall not contain any substances that might affect the use or usefulness of the aluminum chlorohydrate in treating water. The truck shall be equipped to allow the hoses and fill pipes to be evacuated with air pressure either during or after unloading to minimize the chance of spillage. No spillage from the hoses will be allowed. The supplier must clean up any spillage immediately. If smaller quantities are purchased, the container size and type shall be by agreement between purchaser and supplier. All bulk carriers or refillable drums shall be carefully inspected to ensure they are free of contaminating material prior to loading of the aluminum chlorohydrate.

NTMWD requires that delivery of the product be made within forty-eight (48) hours of being requested or on the date specified when the product is ordered. NTMWD requires that deliveries be made on weekends and on holidays as requested. Deliveries must normally be made between the hours of 7:30 A.M. and 2:30 P.M. Central Time, Monday through Friday. Deliveries may be accepted during alternate hours with prior approval by the plant supervisor or his designated representative.

9. POINT OF DELIVERY

Prices bid for materials must be for deliveries FOB Destination at location(s) specified below. Title to any shipment shall be held to pass only upon actual delivery and acceptance at the designated delivery point(s). All deliveries shall be made by truck between the hours of 7:30 A.M. and 2:30 P.M. Central Time, Monday through Friday, unless an alternate delivery time has been scheduled and approved.

WATER TREATMENT PLANTS

Leonard Treatment Plant 17600 S State Highway 78

Leonard, TX 75452

Tawakoni Treatment Plant

18015 CR 329

Terrell, TX 75161

Bonham Treatment Plant

2073 FM 273

Bonham, TX 75418

*All deliveries to the NTMWD Tawakoni WTP must be via FM 429 at Ables Springs onto County Road 330 and thence to the WTP. All trucks must enter and leave by this route.

10. WEIGHING DELIVERED PRODUCT

All bulk truckload deliveries shall be accompanied by one scale ticket from a state certified scale indicating the following:

• the name of the scale company

• the scale company’s location

• date

• truck and trailer numbers

• gross weight

• tare weight

• net weight

The weight tickets shall be for the actual load delivered to NTMWD. Weight tickets that do not identify the required information will be grounds for rejecting a shipment. An alternative method of determining weight for liquid chemical products is to provide a single totalized weight determined by the use of a mass flow meter on the trailer fill line. If this method of determining weight is selected, the Contractor must provide to NTMWD the Certificate of Calibration from an independent, third party. The certification must be made annually and copies of the certification results provided to NTMWD Purchasing Department.

NTMWD reserves the right to determine the quantity delivered through online instrumentation or weighing after offloading, at the Contractor’s expense, if it believes weight tickets are inaccurate or that an entire shipment was not offloaded. It further reserves the right to make payments based on this determination.

NTMWD reserves the right to withhold payment until all weight tickets have been received and verified.

11. SECURITY REQUIREMENTS FOR BULK DELIVERIES

After filling the delivery trailer at the loading location, the valve hood bonnet, all hatches and connection caps shall be sealed against tampering. The seals shall be uniquely numbered and tamper evident as defined in Section 6.2.

of ANSI/AWWA Standard No. B408-25 of latest revision, or an alternative method as approved by NTMWD. The seal numbers shall be recorded and disclosed on shipping documents. Seals will be inspected at the point of delivery and evidence of tampering or removal will be reported to the carrier and the Contractor and the load may be rejected.

12. AUTHORITY FOR DELIVERY

Deliveries of the material purchased under the terms of this contract are to be made if, as and when required and ordered by the System Manager or designated representative of NTMWD, and at such intervals as directed by the System Manager.

13. REJECTION OF DELIVERIES

NTMWD may reject and refuse delivery of any shipment which falls below the quality designated in these specifications. If the material does not meet the requirements of this specification, the Contractor shall remove the material from the premises of the NTMWD, at no cost to NTMWD, or a price adjustment may be agreed on between the Contractor and the NTMWD. NTMWD shall not be held to have accepted any shipment until after analysis of the material and inspection of the container(s) and NTMWD has had an opportunity to exercise this right of rejection.

14. TESTING OF DELIVERIES

Equal portions may be taken at five equally spaced intervals during the unloading of a tank truck. Where small quantities are purchased in small containers, at least 5 percent of the containers shall be sampled, but not less than 5 and no more than 15 containers shall be sampled from any one shipment. The total gross sample shall be at least 2-qt. (1.9 L).

The total gross sample shall be thoroughly mixed and three 1-pt. (0.5 L) containers filled and retained. Containers shall be polyethylene plastic containers or glass containers having a plastic corrosion-resistant cap. Each sample container shall be labeled to identify it and the sampler shall sign the label.

One of the three sealed samples is for immediate use by the purchaser for testing of the shipment. The two remaining samples shall be retained for future use if necessary. Samples shall be retained for at least thirty (30) days after the date of receipt of the shipment before they are discarded.

15. BASIS OF PAYMENT

The basis of payment shall be the net weight of aluminum chlorohydrate supplied at a 50% solution. No additional payment will be made for any shipment of aluminum chlorohydrate that exceeds the 50% solution requirement.

Aluminum chlorohydrate solution shall contain not less than 22.5% and not more than 25% aluminum oxide, except by agreement between supplier and purchaser. No additional payment will be made for any shipment of aluminum chlorohydrate that exceeds the 22.5% minimum concentration of aluminum oxide.

16. SPILLS AND LEAKS

Any and all chemical spills or leaks caused by chemical delivery drivers, delivery trucks/trailers or their associated equipment must be cleaned up immediately at the expense of the Contractor. This is to include any and all spills or leaks occurring on NTMWD property. Delivery drivers are not to add water to or attempt to clean up spills or leaks prior to NTMWD personnel assessing the spill/leak. If NTMWD personnel are not readily available, the delivery driver shall immediately notify NTMWD and take reasonable actions to contain/clean up the spill until NTMWD personnel arrive and assess the spill. Any and all spills or leaks that are not remediated by the chemical vendor will be done so by NTMWD and the service of such will be billed to the chemical vendor.

17. REQUIRED DOCUMENTATION

Included with each shipment must be a current SDS sheet, and a certificate of analysis of the product, along with definitive product identification and NSF 60 certification. Weights must be determined by use of certified scales and a weight ticket must be provided with each load. Flow meter calibration records must be provided with each load if this method is used.

A chemical analysis that is not more than one month old shall be supplied with each chemical delivery. The analysis shall at a minimum show the date of the sample collection, date of analysis, concentration of aluminum oxide, pH, Basicity, turbidity, and specific gravity of the solution as delivered. Individual loads may be sampled and analyzed by the method described in 14. Testing of Deliveries.

18. NEW SITES

Additional locations may be added via change order throughout the duration of this agreement.

19. SITE ENTRY INSTRUCTIONS

A standardized approach to unloading trailers filled with potentially hazardous chemicals follows. These directions are specific to Water Treatment Plants only.

A. ENTERING PLANT SITE

The driver will:

• Check in with Security at the main control room at Leonard, Bonham and Tawakoni

• Verify contents of shipment with Security using Bill of Lading.

• Receive map of facility and directions from Security (if needed).

Security or Control Room/Operator will:

• Contact Main Control Room

• Confirm what chemical is being delivered.

• Confirm that UN placard on truck is for designated chemical.

• Confirm what plant and location the chemical will be delivered to.

• Direct the driver to proceed to the designated chemical unloading location.

The Main Control Rooms will:

• Reaffirm with Security that UN placard matches chemical name on bill of lading.

• Dispatch an operator to the chemical unloading location. The shipment will be met at the delivery point by an operator.

B. BEFORE UNLOADING

The operator will:

• Verify chemical contents by reviewing the Bill of Lading.

• Check tanker seal and record seal number.

• Verify UN number on trailer placards matches corresponding chemical.

• Not allow transfer if there is any discrepancy in paperwork and notify Control Room of concerns.

• Check that there are machine printed unloaded and loaded weight tickets

• Check the level of the storage tank to be sure it will accept load.

• Identify the proper unloading port for the chemical to be unloaded.

• Unlock the fill line to the storage tank.

• Instruct the driver to remain at the unloading station during unloading.

• Make sure spill prevention equipment, such as a 5-gallon bucket to catch drips, is in use.

• Make the driver aware of safety shower and eyewash locations.

• Contact the Control Room when transfer begins.

• Have and use the proper personal protective equipment (PPE).

• Turn on the vehicle’s emergency flashers.

• Place orange safety cones in front of and behind the vehicle.

• Use portable spill containment equipment, such as a 5-gallon bucket, where needed to catch drips.

• Connect the chemical transfer hose.

• Connect the air padding hose (if needed).

• Initial the bill of lading and driver’s paperwork if applicable (include date and time) to signify it is OK to start unloading.

• Enter information on Chemical Delivery Log.

The operator and driver will:

• Check that the transfer hose (and air hose) are securely connected and have no leaks.

• Confirm when unloading will be completed.

C. AFTER UNLOADING

• Notify the Main Control Room that that the unloading is completed.

• Wearing proper PPE, relieves air pressure and disconnects transfer hose.

• Cap both ends of the transfer hose and store it properly.

• Remove orange safety cones.

• Turn off the vehicle’s emergency flashers.

The Main Control Room will:

• Dispatch an operator to the chemical unloading location

The operator and driver will:

• Check area for evidence of spills.

• Sign Bill of Lading (include date and time).

• Install lock on fill line.

• Keep a copy of the Bill of Lading and other paperwork at the chemical building office to turn in at the end of the day.

• Check out with Security and/or the Main Control Room.

20. ADDITIONAL INFORMATION

A. NTMWD does not pay container deposits, but will return reusable containers at contractor’s expense.

B. NTMWD does not pay demurrage unless otherwise expressly allowed in the bid documents.

C. Successful contractors may be required to submit a sample together with a certified analysis upon request by the NTMWD prior to award of a contract.

D. Contractor must disclose in its bid the name(s) of any person or entity who shall, during the duration of the Chemical Supply Agreement, serve as a supplier or subcontractor for the labor, materials, and/or transportation to be provided by Contractor to NTMWD under the terms of the Agreement. All such listed persons or entities shall be evaluated by NTMWD, along with the Bidder, to determine the lowest responsible bidder.

E. In order to protect load zoned roads and to avoid impacting residential areas, specific routes may be designated for some chemicals and delivery sites. If a route is specified, deliveries must be made using the designated route with no deviations allowed. It is the responsibility of the successful bidder to guarantee compliance by the transport drivers and all such compliance shall be at the sole cost and expense of the Contractor.

F. The successful contractor shall be required to submit regularly printed literature as published by the factory, which sets out and describes the equipment or materials to be furnished. Upon award of the bid(s) the successful contractor(s) shall be required to provide Material Safety Data Sheets for each chemical at each location.

G. It is the responsibility of the successful contractor(s) to provide all transport drivers and employees with Personal Protective Equipment (PPE) and related safety equipment as appropriate for the chemical provided.

BID PRICING FORM

Line Item Description

Unit of Measure Unit Price

Estimated Quantity Extended Price

CATEGORY 1 – WATER TREATMENT PLANTS

Aluminum Chlorohydrate delivered to

Leonard WTP, Leonard, Texas Wet Ton 2,425

Aluminum Chlorohydrate delivered to

Bonham WTP, Bonham, Texas Wet Ton 215

Aluminum Chlorohydrate delivered to

Tawakoni WTP, Terrell, Texas Wet Ton 1,960

Grand Total

Provide the expected dose range to treat Leonard WTP:

*NTMWD reserves the right to award between 1 and 100 percent of the agreement to a single bidder or to proportion the award between multiple bidders.

Pricing shall include all applicable costs. No additional charges shall be permitted.

SUBCONTRACTORS and SUPPLIERS to CONTRACTOR (if any):

FIRM NAME TELEPHONE NO.

ADDRESS

FIRM NAME TELEPHONE NO.

ADDRESS

FIRM NAME TELEPHONE NO.

ADDRESS

INSURANCE REQUIREMENTS

Contractors doing business with NTMWD shall have, at minimum, the following insurance coverages and limits for the duration of the contract:

1. COMMERCIAL GENERAL LIABILITY – covering bodily injury and property damage (including property of NTMWD, its officers, agents and employees) with minimum limits on a per project basis of One Million Dollars ($1,000,000) occurrence, Two Million Dollars ($2,000,000) aggregate for premises/operations and One Million Dollars ($1,000,000) occurrence, Two Million Dollars ($2,000,000) aggregate for products/completed Operations.

2. AUTOMOBILE LIABILITY - covering all operations of Contractor pursuant to this contract involving the use of motor vehicles, including all owned, non-owned and hired vehicles with minimum limits of not less than Five Hundred Thousand Dollars ($500,000) combined single limit for bodily injury, death and property damage liability.

3. WORKERS’ COMPENSATION – in full accordance with the requirements of the state of Texas and shall include bodily injury, occupational illness or disease coverage with minimum Employer’s Liability limits of not less than Five Hundred Thousand Dollars ($500,000/$500,000/$500,000). These limits do not affect the payment of medical expenses or lost wages to injured employees.

4. Waiver of Subrogation – The Commercial General Liability, Workers Compensation and Auto insurance required pursuant to this Contract shall provide for waivers of all rights of subrogation against NTMWD, its officers, employees, and elected representatives for injuries, including death, property damage, or any other loss to the extent the loss, if any, is covered by the proceeds of insurance.

5. Additional Insured Status – All insurance shall be endorsed to name NTMWD, its officers, and employees as additional insureds as to all applicable coverage except for the Workers Compensation Insurance.

6. Proof of Carriage of Insurance – All certificates of insurance will be required in duplicate and filed with NTMWD.

7. All certificates shall provide North Texas Municipal Water District with an unconditional thirty (30) days’ written notice in case of cancellation or any major change to Contractor’s insurance policies or the contractually required coverages mentioned herein.

8. All copies of the certificates of insurance shall reference the project name and/or bid number for which the insurance is being supplied.

9. The Contractor is responsible for making sure any sub-contractor(s) performing work under this contract have the required insurance coverage(s) and supply NTMWD with the proper documents verifying the coverage.

10. The certificate of insurance shall cite the bid/contract number.

11. The certificate of insurance shall include the following name and address as the Certificate Holder:

501 E. Brown St Wylie, Texas 75098

ANNUAL PRICE ADJUSTMENTS

A. The unit prices of all items purchased under an estimated annual contract are firm for the first annual period of the agreement.