ESBD_534307_1783028000181_582-26-15942 - IFB.pdf

Updated May 2026

TEXAS COMMISSION ON ENVIRONMENTAL QUALITY

Cover Page

Date: 7/2/2026

Type of Solicitation: Invitation for Bid (IFB)

Name of Solicitation: Water Monitoring Equipment

Solicitation Number: 582-26-15942

Class 493, Item 96

Responses Due

July 17, 2026 at 3:00PM Central Time

Deadline for Submission of Questions

July 7, 2026 at 12:00PM Central Time

Anticipated TCEQ reply to Vendor Questions (This date is only an estimate):

July 9, 2026

Description: Purchase of Water Monitoring Equipment

“These specifications are being advertised under Section 2155 067 of the Texas Government Code Only bids on items conforming exactly to these specifications, which include proposing only the brand name(s), make and model number(s) specified, will be considered in determining an award”

Subcontracting Plan: Subcontracting opportunities have not been identified. For “have not”: See additional information under the Responder General Instructions.]

PURCHASING AUTHORITY:

Biddable Goods and Services (IFB) Gov’t Code Chapter 2155

Solicitation Table of Contents

SECTION 1: General Information

• Cover Page

• Solicitation Table of Contents

• TCEQ Points of Contact for This Solicitation

• Response Submission Procedure

• Responder General Instructions

• Responder Special Instructions

• Responder’s Quick Guide to Send Portal

SECTION 2: Specifications

• Specifications

SECTION 3: Draft Contract Documents

• Contract Signature Page

• General Terms and Conditions

• Notices, Project Representatives, and Records Location

• Attachment(s)

SECTION 4: Response Documents – To be submitted with Response, unless otherwise noted below

• Responder’s Signature and Information

• Response Contents

• Signed Cover Pages of Addenda

• Price Form

• Preferences

• Certifications

TCEQ Points of Contact for This Solicitation

TCEQ Procurements and Contracts Representative

Primary Contact

Name: Leslie Delvige, CTCP, CTCM Telephone: 512-239-0385 Email: Leslie.delvige@tceq.texas.gov

Secondary Contact

Name: Christine Kelm Telephone: 512-239-1367 Email: Christine.kelm@tceq.texas.gov

Please allow one business day before contacting the secondary contact.

Exception: If there is less than 24 hours before a Solicitation deadline, you may contact the secondary contact after attempting to contact the primary contact.

Except for contacting the VetHUB Coordinator, all communication regarding this Solicitation must be directed to the TCEQ Procurements and Contracts Representative. If this requirement is not met, then the Response may be disqualified.

Email for Vendor Questions: Leslie.delvige@tceq.texas.gov

TCEQ VetHUB Coordinator Name: Claribel Diaz Email: Claribel.Diaz@tceq.texas.gov mailto:Claribel.Diaz@tceq.texas.gov

Response Submission Procedure via TCEQ’s Send Portal

The Response (proposal) must be signed, and the Responder must submit the Response to TCEQ as one Adobe portable document format (PDF) searchable file.

Responses to the Solicitation may only be submitted through TCEQ’s Send portal. A user-friendly quick guide for using TCEQ’s Send portal can be found attached, as Exhibit A, after the response instructions:

Responder's Quick Guide to Send Portal

(Clicking the link, above will take you directly to Exhibit A.)

For more detailed information regarding TCEQ’s Send portal, please visit the following resources:

• Submitting To a File Drop

(https://send.tceq.texas.gov/img/help.html#external-filedrop)

• Send User Guide

(https://send.tceq.texas.gov/img/help.html) https://send.tceq.texas.gov/img/help.html#external-filedrop https://send.tceq.texas.gov/img/help.html#external-filedrop https://send.tceq.texas.gov/img/help.html#external-filedrop https://send.tceq.texas.gov/img/help.html https://send.tceq.texas.gov/img/help.html

Responder General Instructions The terms response, proposal, and offer are used interchangeably to mean the submission by the Responder to this Solicitation. Responder is defined as the business entity that proposes to enter a contract with TCEQ to perform the Work described in this Solicitation as a prime Contractor.

Pre-Proposal Conference

None

Questions Regarding the Solicitation

Deliver questions in writing no later than the Deadline for Submission of Questions listed on the Cover Page. Questions must be submitted to the following email address: leslie.delvige@tceq.texas.gov.

Please include the following information in the subject line of the email: Solicitation Number, Solicitation Name, and the Due Date for Responses.

TCEQ will provide answers to questions in one or more addenda posted on the ESBD. TCEQ may, at its sole discretion, extend the Due Date for Responses to provide Responders additional time to make revisions.

Addenda

Any changes to the Solicitation, deadline/due dates, and all responses to questions will be posted as addenda on the ESBD. All addenda are part of the Solicitation. No other explanations, interpretations, or changes will be considered official or binding. It is Responder’s responsibility to review all addenda and submit signed and dated cover sheets to confirm receipt.

Changes to the Terms and Conditions

Exceptions that are not advantageous to TCEQ may result in the deduction of points in the evaluation or disqualification of the Response. Requested changes to the terms and conditions must be labeled and included behind Tab 3.

Cost of Preparing the Response

The Responder is responsible for all costs incurred in the preparation and submission of a Response.

Quantity and Nature of the Work

Responders are required to inform themselves of all conditions that may affect the performance or the prices. By submitting a Response, Responder expressly waives any claims that there was a misunderstanding concerning the quantities or the nature of the Work.

Subcontracting Plan

A Subcontracting Plan is not required because:

☒ TCEQ has not identified any subcontracting opportunities for this Solicitation.

☒ TCEQ has identified no probability of subcontracting with VetHUBs for this Solicitation.

mailto:leslie.delvige@tceq.texas.gov

☐ TCEQ expects the value of the Solicitation to be less than $90,000, including all renewals.

Preparation of Responses

Responses become TCEQ records and cannot be returned, except for Responses withdrawn by the Responder prior to the due date and time for Responses.

Responses must be in the format of one (1) electronic searchable PDF document of the entire Response and must not be password protected or submitted in a portfolio format. In order for the Response to be deemed responsive, the electronic version must contain the entire Response. Additionally, the electronic version must contain a signed Responder’s Signature and Information page. If these requirements are not met, then the Response may be disqualified.

Prepare the Response as follows:

• Include all information listed on the Response Contents page.

• Obtain any missing applicable forms from TCEQ with sufficient time to complete and submit them in the Response.

• Complete the applicable, required forms in this Solicitation.

• Create any other applicable documents.

• Insert all applicable documents behind cover pages for the specified tabbed sections. If there is no information to include behind a tab, include a page behind the cover page for the tab stating “Not Applicable”.

• All pages of the Response shall be submitted to allow for printing on standard 8.5-inch x 11-inch paper. Any maps may be submitted to allow for printing on 11-inch x 17-inch paper. Standard font size for the Response shall be 10 to 12 point. Charts and maps may use smaller font size, but not less than 8 point.

Language shall be American English.

• If page limits are specified, any information provided by the Responder in excess of the allowable page limits will not be evaluated.

• Each page of the Response shall be labeled with the Responder’s name and the Solicitation number.

• Sign all documents that require a signature, including the Response on the Responder’s Signature and Information page. Create a PDF of each signed document and place behind the required tab. Responses not containing a PDF of a signed Responder’s Signature and Information Page may not be considered.

• Create a PDF of the entire Response for submission to the TCEQ.

Submission of Responses

• Submit the Response by the due date and time on the Cover Page using the TCEQ Send portal, as specified under Response Submission Procedure section.

TCEQ will not consider Responses submitted via any other method.

• If the Response lacks required information or does not follow these instructions, the Response may be considered non-responsive and disqualified.

TCEQ is not responsible for documents that cannot be read. Unreadable Responses may be rejected as non-compliant, at TCEQ’s discretion.

• Responses cannot be altered, amended, or withdrawn after the Due Date and Time. To withdraw a Response prior to the Due Date and Time, the Responder must submit the request to: leslie.delvige@tceq.texas.gov.

• The Responder shall notify the TCEQ of material changes to the Response (such as changes in staffing structure) during the time interval between the due date for the Response and date of contract award.

Due Date/Late Responses

It is Responder’s responsibility to ensure timely delivery of the Response to TCEQ by the date and time on the Cover Page of this Solicitation. Except under extreme circumstances beyond the control of the Responder, late Responses will not be considered.

TCEQ’s Acceptance of Responses

TCEQ may reject Responses that do not comply with requirements in the Solicitation and state and federal laws. TCEQ may accept or reject all or any part of any Response, waive procedures for submitting Responses, waive formalities and/or minor technicalities, and award by item or groups of items, whichever best serves the interests of TCEQ. TCEQ may also cancel this procurement and withdraw this Solicitation at any time before a contract is signed by TCEQ. TCEQ shall have sole discretion of what is in the best interests of TCEQ.

Evaluation

The pricing and all terms and conditions of Responses are fixed for 120 days from receipt by TCEQ. Best and Final Offers (BAFOs), if requested by TCEQ, are fixed for 60 days. To determine the most advantageous Response, in addition to price, TCEQ may consider other relevant criteria, which are described more fully in Section 2, Evaluation Criteria. TCEQ may use information regarding the Responder’s performance on past TCEQ contracts in the evaluation of qualifications. In addition, TCEQ will use the information contained in the Texas Comptroller of Public Account’s vendor performance tracking system in the evaluation of qualifications.

Selection

Scoring will be done in accordance with evaluation criteria published in this Solicitation.

For other purchases of goods and services, selection will be based on the applicable statutory requirements (generally, best value to the state).

Depending on the type of solicitation, applicable procurement method, and legal requirements, TCEQ may take one or more of the following actions in the selection process:

• Request clarifications, assurances, and corrections.

• Modify the selection criteria and apply it to BAFOs, provided that the modifications do not materially affect initial applicant eligibility or invitation to submit a BAFO. Conduct discussions on Responses scoring within a competitive range/for RFQ’s, with the most highly qualified provider and request Best and Final Offers (BAFOs).

• Award one or more contracts based on the amount of Work that TCEQ foresees needing performed.

mailto:leslie.delvige@tceq.texas.gov

• Award contracts to other contractors at a later date under this Solicitation or through another appropriate method, including another solicitation.

• In the case of a tie that cannot be resolved by application of one or more statutory preferences, make a selection, in the best interest of the State, by drawing lots, tossing a coin, or drawing names with two witnesses to oversee the tiebreaking activity.

• Reject all Responses or BAFO Responses and cancel the procurement.

Certification of Interested Parties

Section 2252.908 of the Texas Government Code states that a state agency may not enter into certain contracts with a business entity unless the business entity submits a disclosure of interested parties (Form 1295) to the state agency at the time the business entity submits the signed contract to the state agency. The contract is voidable if the business entity fails to provide the disclosure of interested parties as required by statute.

Form 1295 must be filed electronically through the Texas Ethics Commission at https://www.ethics.state.tx.us/filinginfo/1295/ . The web site includes a list of Frequently Asked Questions.

The selected vendor(s) for a contract that meet the requirements to provide a Certification of Interested Parties will be given instructions at the time of award on how to submit the certification form.

Protest Procedures

An actual or prospective Responder or Contractor who is aggrieved in connection with the Solicitation, evaluation, or award of a contract by TCEQ may formally protest to the TCEQ Manager of Procurements and Contracts. TCEQ Protest Procedures can be found at 30 Texas Administrative Code Part 1, Chapter 11, Subchapter B, § 11.2.

Public Information

The Response is a public record. By signing and submitting a Response, Responder hereby acknowledges:

• That the Response and subsequent documents submitted to TCEQ are subject to the Texas Public Information Act (PIA);

• That it is Responder’s obligation to specifically identify information it contends to be confidential or proprietary and accepts that TCEQ may in its sole discretion deem a Response as non-compliant; and

• That Responder grants a royalty-free, irrevocable, world-wide, perpetual license to reproduce any copyrighted portions of the Response and subsequent documents to comply with Legislative Budget Board (LBB) reporting requirements, PIA disclosures, or any other reporting requirements mandated by law or statute.

Conflict of Interest

In Tab 4, Responder shall disclose apparent, potential or actual conflicts of interest known to it regarding the Responder or individuals who will work on the Contract or have access to Contract-related information. Responder has a continuing obligation to disclose conflicts of interest during this Solicitation, and if awarded a https://www.ethics.state.tx.us/filinginfo/1295/ https://www.ethics.state.tx.us/filinginfo/1295/ https://www.ethics.state.tx.us/resources/FAQs/FAQ_Form1295.php https://texas-sos.appianportalsgov.com/rules-and-meetings?$locale=en_US&interface=VIEW_TAC_SUMMARY&queryAsDate=12%2F10%2F2025&recordId=129890 https://texas-sos.appianportalsgov.com/rules-and-meetings?$locale=en_US&interface=VIEW_TAC_SUMMARY&queryAsDate=12%2F10%2F2025&recordId=129890 contract, during the Contract Period. TCEQ may refuse to contract with Responder or terminate any Contract due to an apparent, potential, or actual conflict of interest.

Responder’s Special Instructions

Shipping Charges

Bid FOB Destination – Freight Prepaid and Allowed

Exhibit A

Responder’s Quick Guide to Send Portal

1. Enter this web address into your browser:

https://send.tceq.texas.gov/filedrop/Solicitation-Response.

This screen will appear.

Enter your email address and click the blue “Authenticate” button:

2. Check your email for a response from TCEQ Send.

Open the email to retrieve the unique Secure Token. Please note that the token has a time limit.

https://send.tceq.texas.gov/filedrop/Solicitation-Response

Click on the blue “Validate Email” button inside the email. This will return you to the Send portal (see screenshot in #3, below).

Alternatively, you can manually return to the Send portal and type in the Secure Token and click the blue “Verify” button. The Secure Token is case-sensitive.

Either method will take you to the next screen (see the screenshot in #3, below).

3. Complete this screen to submit your response. Fields marked with an “*” are required.

Subject: Enter a subject line. (i.e.: solicitation name, etc.)

Solicitation Number*: Enter the solicitation number found on the front of the solicitation document. Use the complete solicitation number as shown on the document.

Submitter Company Name*: Enter your company’s name.

TCEQ Contact Name*: Enter the name of the individual listed as the Primary Contact.

This is found on the solicitation page named “TCEQ Points of Contact for this Solicitation”.

Message: Use the optional field to include information you feel is pertinent (e.g., ”3 files uploaded”). The message text will not be scored as part of the Response.

Upload all files that are part of your response to the solicitation. You have the option to either drag and drop files into the “Drop Files Here” box, or you can upload the files by clicking on the green “+Add Files…” button.

Note: A list of uploaded files will display under the “Attached files” area at the bottom of the screen.

When all files have been uploaded and you are ready to submit your response, click the blue “Send” button.

4. After submitting your response, this screen will appear.

You can now logout.

5. A confirmation email will be sent to the email address you used to submit your response.

Keep this for your records.

-End-

Updated March 2024

SECTION 2:

SPECIFICATIONS

1. YSI EXO1 Multiparameter Sonde, #SKU599501-02

The Yellow Springs Instruments (YSI) EXO1 Multiparameter Sonde is a water quality monitoring device with four sensor ports. It provides comprehensive data on various parameters which include temperature, conductivity, pH, chloride, and dissolved oxygen. The sonde’s smart sensors ensure accurate readings and proper calibrations. It operates in fresh, sea, or polluted water environments, with a depth rating of up to 250 meters (820 feet). The EXO1 features a rugged design, anti-fouling technology, and a memory capacity for over 1 million logged readings (512 MB).

a. Depth / Pressure Rating / Limit: 0 to 250 m (0 to 820 ft)

b. Desktop Software Compatible: Yes

c. Flow Cell: Yes

d. Languages: French, Japanese, Chinese, English, Spanish, German

e. Logging Capabilities: Yes

f. Medium: Fresh, sea or polluted water

g. Memory: 1,000,000 logged readings, 512 MB total memory

h. Multiparameter: Yes

i. Operating Temperature: -5 to +50°C

j. Power: 2 Alkaline Batteries

k. Sampling: Yes

l. Smart Sensors / Ports: Yes

m. Storage Temperature: -20 to +80°C

n. Unit of Measure: Parameter Dependent

o. User Calibratable: Yes

p. Waterproof: Yes

2. YSI EXO1 “S” Multiparameter Sonde, #SKU577501-02

The Yellow Springs Instruments (YSI) EXO1 “S” Multiparameter Sonde is a water quality monitoring device with four sensor ports. It provides comprehensive data on various parameters which include temperature, conductivity, pH, chloride, and dissolved oxygen. The sonde’s smart sensors ensure accurate readings and proper calibrations. It operates in fresh, sea, or polluted water environments, with a depth rating of up to 250 meters (820 feet). The EXO1 “S” features a rugged design, anti-fouling technology, and a memory capacity for over 1 million logged readings (512 MB).

a. Depth / Pressure Rating / Limit: 0 to 250 m (0 to 820 ft)

b. Desktop Software Compatible: Yes

c. Flow Cell: Yes

d. Languages: French, Japanese, Chinese, English, Spanish, German

e. Logging Capabilities: Yes

f. Medium: Fresh, sea or polluted water

g. Memory: 1,000,000 logged readings, 512 MB total memory

h. Multiparameter: Yes

i. Operating Temperature: -5 to +50°C

j. Power: 9 - 16 V

k. Sampling: Yes

l. Smart Sensors / Ports: Yes

m. Storage Temperature: -20 to +80°C

n. Unit of Measure: Parameter Dependent

o. User Calibratable: Yes

p. Waterproof: Yes

3. YSI EXO Conductivity & Temperature Smart Sensor, #SKU599870

This sensor must be installed into an EXO Sonde to function. Does not function on its own.

The EXO Conductivity & Temperature Sensor is a digital smart sensor featuring welded titanium construction and wet-mate connectors. A new metrology system specifically for EXO offers improved range of conductivity and increased accuracy of temperature sensors to better address oceanographic challenges. This combination sensor provides measurements for water temperature and conductivity as well as calculated parameters like specific conductivity, salinity, resistivity, and total dissolved solids (TDS).

a. Connector: Yes

b. Desktop Software Compatible: Yes

c. Digital / Digital Sensors: Yes

d. Equipment used with EXO1, EXO2

e. Measurement Method / Channels: 4-electrode nickel cell

f. Medium: Fresh, sea or polluted water

g. Monitoring: No

h. Operating Temperature: -5 to +50°C

i. Parameters Measured: Conductivity, Temperature, Salinity, Specific

Conductance, TDS

j. Precision: 0 to 100: ±0.5% of reading or 0.001 mS/cm, w.i.g.; 100 to 200: ±1% of reading

k. Response Time: T63<2 sec

l. Sampling: Yes

m. Storage Temperature: -20 to +80°C

n. Unit of Measure: micro Siemens/centimeter

o. User Calibratable: Yes

p. Warranty: 2 Years

q. Waterproof: Yes

4. YSI EXO Guarded pH Sensor SKU 577601 own.

The EXO guarded pH sensor is a digital smart sensor featuring welded titanium construction and wet-mate connectors. Complete calibration in less than 15 minutes using EXO's suite of smart sensors and intuitive KOR interface software.

Note: This guarded model is for sampling applications, not for use in an EXO2 system with a central wiper installed.

a. 0 to 14 unit measurement range

b. T63<3 sec response time

c. ±0.1 pH unit accuracy within ±10°C of calibration temperature Compact and

Accurate

d. The EXO platform offers a completely new approach - highly accurate, quick-response sensors in a small, easy-to-deploy and easy-to-maintain package. Gone are large and complicated sensor arrangements requiring complex integration.

e. Smart Probes

f. All EXO sensors have onboard memory and processing, allowing users to easily calibrate and configure sensors at one location and distribute to various field sites.

g. Smart Ports

h. Wet-mate connectors allow for swaps in wet conditions, while the smart ports shut down any excessive current draws to prevent damage.

i. This sensor must be installed into an EXO Sonde to function. Does not function on its own.

5. YSI EXO Optical Dissolved Oxygen Smart Sensor, #SKU599100-01 own. The EXO Optical Dissolved Oxygen Smart Sensor is a digital smart sensor featuring welded titanium construction and wet-mate connectors. Complete calibration in less than 15 minutes using EXO's suite of smart sensors and intuitive KOR interface software.

a. Connector: Yes

b. Desktop Software Compatible: Yes

c. Digital / Digital Sensors: Yes

d. Equipment used with: EXO1, EXO2

e. Medium: Fresh, sea or polluted water

f. Monitoring: Yes

g. Operating Temperature: -5 to +50°C

h. Parameters Measured: DO

i. Precision: 0 to 200%: ±1% of reading or 1% saturation, whichever is greater

j. 200 to 500%: ±5% of readings, relative to calibration gasses

k. 0 to 20 mg/L: ±0.1 mg/L or 1% of reading, whichever is greater

l. 20 to 50 mg/L: ±5% of reading, relative to calibration gasses

m. Response Time: T63<5 sec

n. Sampling: Yes

o. Storage Temperature: -20 to +80°C

p. Unit of Measure: % saturation, DO % local, mg/L

q. User Calibratable: Yes

r. Warranty: 1 Year - Optical DO membrane cap

s. 2 Years - Optical sensor base

t. Waterproof: Yes

6. YSI EXO Handheld Display "2.0", #SKU599960

The EXO Handheld Display is a rugged, waterproof, graphical interface option compatible with the YSI EXO1, EXO2, and EXO3 instruments. It offers many different display languages including English, German, Spanish, Italian, French, and Chinese with a universal keypad. It seamlessly connects with the desktop KOR software for transferring logged data. The handheld display features rechargeable lithium-ion battery pack, wet-mate connectors, GPS, and will float in water.

a. Autostable Yes

b. Cable Options Any EXO field cable

c. Certifications CEC, CE; RoHS; IP-67; WEEE; FCC; UN Part III, Section 38.3, Test methods for lithium-ion batteries (Class 9)

d. Connector Wet-mate connectors

e. Desktop Software Compatible KOR software for the EXO platform

f. Equipment used with Any EXO Sonde

g. GPS Yes

h. Graphic display with detailed help menus and auto-sized dashboard text based on number of sensors

i. Keypad Yes

j. Languages German, English, Spanish, Italian, Norwegian, Traditional Chinese, French, Simplified Chinese, Japanese, Portuguese

k. Logging Capabilities > 100,000 data sets with single point or continuous logging with autostability option

l. Operating Temperature 0 to 50 °C (32 to 122 °F)

m. Power Rechargeable lithium-ion battery pack provides ~48 hours if powering the handheld only and ~20 hours if powering the handheld, sonde and four sensors;

battery recharge time is ~9 hours with the AC power adapter. The instrument can also be powered via AC or external power pack though the USB port.

n. Sampling Yes

o. Size Instrument: 8.3 cm width x 21.6 cm length x 5.6 cm depth (3.27 in x 8.5 in x

2.21 in)

p. Storage Temperature 0 to 45 °C (32 to 113 °F) with battery installed; 0 to 60 °C

(32 to 140 °F) without battery installed. Note: Storing Li-Ion batteries in cool environments will help extend their lifespan.

q. User Calibratable Yes, 400 detailed calibration records can be stored and are available to view, download and print for traceability.

r. Warranty 3-year handheld; 1-year Li-ion battery pack

s. Waterproof Floats, IP-67

t. Weight with Battery, 567 grams (1.25 lbs)

7. YSI EXO Field Cable, #SKU599040-2

a. Connects sonde to EXO Handheld Display or USB adapter

b. Wet mate connectors and strain relief

8. YSI EXO Field Cable, #SKU599040-4

9. YSI EXO Field Cable, #SKU599040-33

10. YSI EXO Signal Output Adapter – USB, #SKU599810

a. Connectivity / Communications Yes

b. Desktop Software Compatible Yes

c. Equipment used with Any EXO Sonde

11. YSI EXO1 Guard Assembly with Bottom Plate and Guard Tube, #SKU599666

a. Protective guard used to protect sensors from physical damage in the field

12. YSI EXO1 Hard-sided, Wheeled Carrying Case #SKU599020-1

a. Equipment used with EXO1 #SKU599501-02

13. YSI EXO1 Sonde Weight, #SKU599471

a. Used for profiling or high current applications

14. SonTek FlowTracker2 Handheld, #SKU FT2-HH

The SonTek FlowTracker2 Handheld is a rugged, waterproof display option compatible with the FlowTracker2 probe. The handheld display features 16 GB of storage, GPS, and Bluetooth capabilities. It will seamlessly connect with a desktop or laptop for transferring logged data.

a. Input Battery Voltage 8 - 12 VDC

b. Power Supply 8 X AA Batteries

c. Battery Life 15 hours continuous use, typical settings

d. Power Consumption 1 W (Average)

e. GPS: H. Position Accuracy Up to 2.5 m (8.2 ft) nominal

f. GPS: Frequency L1 (1.575 MHz)

g. SBAS compensation (WAAS, EGNOS, MSAS, GAGAN)

h. LCD Resolution 320 X 240 TFT Transmissive

i. Bluetooth Class 2, Range = 10 m (33 ft) nominal

j. USB Micro USB, IP-67

k. Battery Power to Probe 8 - 12 VDC

l. Data Transfer RS-232

m. Data Storage 16 GB. Up to 10k discharge measurements

n. Up to 10 million velocity samples

o. Operating Temperature Alkaline Batteries: -20° to 45°C (-4°F to 113°F)

p. NiMH: -20° to 50°C (-4°F to 122°F)

q. Storage Temperature -30° to 70° C (-22° F to 158° F)

r. Waterproof Rating IP-67 (1m submersible)

s. Handheld Dimensions:

• ((L)10.4 cm (4.1 in)

• (W) 6.4 cm (2.5 in)

• H) 23.7cm (9.3 in)

t. Weight in Air 0.75 kg (1.65 lbs.)

u. Weight in Water -0.25 kg (-0.55 lbs.)

15. SonTek FlowTracker 2 Probe, #SKU FT2-2D

This probe must be connected to a FlowTracker2 Handheld device to function. Does not function on its own. The FlowTracker 2 probe is a digital smart sensor featuring welded titanium construction. It offers depth sensor accuracy of up to +/- 0.05% and compensates for real-time water velocity, temperature, salinity, and altitude. It offers water velocity resolution of up to 0.0003 ft/s.

a. Velocity Range ±0.001 to 4.0 m/s (0.003 to 13 ft/s)

b. Velocity Resolution 0.0001 m/s (0.0003 ft/s)

c. Velocity Accuracy ±1% of measured velocity + 0.25 cm/s

d. Acoustic Frequency 10.0 MHz

e. Sampling Volume Location 10 cm (3.93 in) from the center transducer

f. Minimum Depth 0.02 m (0.79 in)

g. Depth Measurement Range 0 to 10m (0 to 32.81ft)

h. Depth Measurement Resolution 0.001m (0.003ft)

i. Depth Sensor Accuracy

+/- 0.1% of FS (temperature compensated over full operating range) +/- 0.05% Static (steady-state at 25°C) Compensated for real-time water velocity, temperature, salinity, and altitude.

j. Temperature Sensor Resolution: 0.01° C, Accuracy: 0.1° C

k. Tilt Sensor Accuracy: 1.0°

l. Communication Protocol RS-232

m. Operating/Storage Temperature -20° C to 50° C (-4° F to 122° F)

n. Probe Head Dimensions

(L)13.3 cm (5.22 in)

(W) 6.1 cm (2.39 in)

(H) 2.3 cm (0.90 in)

o. Standard Cable Length 1.5 m (4.92 ft)

p. Weight in Air 0.90 kg (1.98 lbs.)

q. Weight in Water 0.30 kg (0.66 lbs.)

16. SonTek Top Setting Wading Rod and Carrying Case, #SKU FT2-ER

a. Top setting wading rod

b. Length 4 feet

c. English increments in tenths of feet

d. Includes bubble level

e. Mounting brackets for FT2-2D probe and FT2-HH

f. Includes carrying case for FT2-HH, FT2-2D, and FT2-ER

17. YSI EXO Dissolved Oxygen Sensor Cap Replacement Kit, #SKU 599110

This sensor cap must be installed on a YSI EXO Optical Dissolved Oxygen Smart Sensor to function. It does not function on its own.

a. Desktop Software Compatible: Yes

a. Digital / Digital Sensors: Yes

b. Equipment used with: YSI EXO Optical Dissolved Oxygen Smart Sensor

c. Monitoring: Yes

d. Operating Temperature: -5 to +50°C

e. Parameters Measured: DO

f. User Calibratable: Yes

g. Warranty: 1 Year - Optical DO membrane cap

h. Waterproof: Yes, once installed

18. YSI EXO un-guarded pH Sensor SKU 577602

This sensor must be installed into an EXO Sonde with a central wiper to function. Does not function on its own. The EXO un-guarded pH sensor is a digital smart sensor featuring welded titanium construction and wet-mate connectors. Complete calibration in less than 15 minutes using EXO's suite of smart sensors and intuitive KOR interface software.

Note: This guarded model is for sampling applications, not for use in an EXO2 system with a central wiper installed.

j. 0 to 14 unit measurement range

k. T63<3 sec response time

l. ±0.1 pH unit accuracy within ±10°C of calibration temperature Compact and

Accurate

m. The EXO platform offers a completely new approach - highly accurate, quick-response sensors in a small, easy-to-deploy and easy-to-maintain package. Gone are large and complicated sensor arrangements requiring complex integration.

n. Smart Probes

o. All EXO sensors have onboard memory and processing, allowing users to easily calibrate and configure sensors at one location and distribute to various field sites.

p. Smart Ports

q. Wet-mate connectors allow for swaps in wet conditions, while the smart ports shut down any excessive current draws to prevent damage.

r. This sensor must be installed into an EXO Sonde with a central wiper to function.

Does not function on its own.

19. YSI EXO Conductivity & Temperature Smart Sensor, #SKU 599827

This sensor must be installed into an EXO Sonde with a central wiper to function. Does not function on its own. The EXO Conductivity & Temperature Sensor is a digital smart sensor featuring welded titanium construction and wet-mate connectors. A new metrology system specifically for EXO offers improved range of conductivity and increased accuracy of temperature sensors to better address oceanographic challenges.

This combination sensor provides measurements for water temperature and conductivity as well as calculated parameters like specific conductivity, salinity, resistivity, and total dissolved solids (TDS).

a. Connector: Yes

b. Desktop Software Compatible: Yes

c. Digital / Digital Sensors: Yes

d. Equipment used with EXO2 with central wiper

e. Monitoring: Yes

f. Operating Temperature: -5 to +50°C

g. Parameters Measured: Conductivity, Temperature, Salinity, Specific

Conductance,

h. Precision: 0 to 100: ±0.5% of reading or 0.001 mS/cm, w.i.g.; 100 to 200: ±1% of reading

i. Response Time: T95<30 sec

j. Sampling: Yes

k. Storage Temperature: -20 to +80°C

l. Unit of Measure: micro Siemens/centimeter

m. User Calibratable: Yes

n. Warranty: 2 Years

o. Waterproof: Yes

20. YSI EXO pH Sensor Replacement Module, Guarded pH Sensor, SKU 626792

This is the User-replaceable tip for #577601 - EXO guarded pH sensor. This sensor module must be installed into an EXO Sonde guarded pH sensor to function. Does not function on its own.

a. Desktop Software Compatible: Yes

b. Digital / Digital Sensors: Yes

c. Equipment used with EXO1 or EXO2 pH sensor

d. Monitoring: Yes

e. User Calibratable: Yes

f. User Installable: Yes

g. Warranty: 1 Year

h. Waterproof: Yes, when installed

21. YSI EXO pH Sensor Replacement Module, un-guarded pH Sensor, SKU 626793

This is the User-replaceable tip for #577602 - EXO un-guarded pH sensor. This sensor module must be installed into an EXO Sonde unguarded pH sensor to function. Does not function on its own.

a. Desktop Software Compatible: Yes

b. Digital / Digital Sensors: Yes

c. Equipment used with EXO2 pH sensor with central wiper

d. Monitoring: Yes

e. User Calibratable: Yes

f. User Installable: Yes

g. Warranty: 1 Year

h. Waterproof: Yes, when installed

GENERAL TERMS AND CONDITIONS

GENERAL TERMS AND CONDITIONS

Revised May 27, 2026

1. DEFINITIONS

The following terms shall have the meanings ascribed below when used in this document:

1.1 “Conforming” and “Conformity” and similar words refer to the condition or status of a good, service, property or the Work as meeting and being compliant with the requirements of the Contract.

1.2 “Fiscal Year” means the period of time that begins on September 1 and ends on August 31. The fiscal year is designated by the calendar year in which it ends;

for example, Fiscal Year (FY) 2016 begins on September 1, 2015 and ends on August 31, 2016.

1.3 Whenever used in this contract, “include,” and similar words are intended to mean include but not limited to; they are not intended to be exhaustive.

1.4 “Nonconforming” or “Nonconformity” means a failure of a good, service, property or the Work to conform to this Contract, and includes a defect in a good, service, property or the Work.

1.5 “Work” means the services, goods and property the Contractor is required to provide in this Contract. The term includes the entire completed undertaking and the various separately identifiable parts. The term also includes all duties of the Contractor.

2. ORDER OF PRECEDENCE

The entire Contract between TCEQ and Contractor consists of the documents identified in the Contract Documents List. The Contract Documents are intended to be interpreted in harmony with each other. Any inconsistency in the solicitation or the Contract shall be resolved by giving precedence in the following order:

a. Contract Signature Page

b. Federal Conditions and Forms

c. Special Terms and Conditions

d. Procedures for Work Orders

e. Scope of Work

f. Price Form (completed)

g. Insurance Section

h. General Terms and Conditions

i. Subcontracting Plan and Progress Assessment Report (PAR)

j. Work Orders and Notices to Proceed (incorporated by reference)

k. Work Plans and other Work Order-related documents created during the

Contract (incorporated by reference)

l. TCEQ Solicitation (incorporated by reference)

m. Other documents, exhibits, and attachments listed in the Contract Documents

List.

3. CONTRACT AMENDMENTS

3.1 Material Changes. Material changes to the contract require a written amendment signed by both parties. These Amendments take effect when signed by the Contractor and TCEQ, unless otherwise designated in the Amendment. Material changes include the following:

https://comptroller.texas.gov/purchasing/docs/hub-forms/state-agency-progress-report.xlsx

3.1.1 Changes in the total amount of funds in the Budget or the Contract;

3.1.2 Changes to the Contract’s Expiration Date;

3.1.3 Changes to the Scope of Work that affect TCEQ’s obligations to the entity providing funding, such as the United States Environmental Protection Agency (EPA), another state or federal agency, or the Texas Legislature; and

3.1.4 Changes that affect the material obligations of the Contractor in this Contract.

3.2 Unilateral Amendments. As specifically allowed by the Contract, TCEQ may issue unilateral amendments. Unilateral amendments take effect when issued by

TCEQ.

3.3 Minor Changes. The TCEQ Contract Manager and/or the TCEQ Project Manager has the authority, without a formal Amendment, to correct typographical errors;

make written Contract interpretations; and make minor, non-material changes to the requirements in the Scope of Work, the Procedures for Work Orders, or the Work Orders; or as agreed to elsewhere in the Contract. Contractor must provide TCEQ with a written objection to any Notice of Interpretation no later than five (5) business days from the effective date of the Notice. A copy of the agreed change must be retained in the appropriate file by both the Contractor and TCEQ.

3.3.1 Minor, non-material changes include:

3.3.1.1 Changes to the schedule in the Scope of Work including an extension of a deliverable due date, not to exceed the expiration date of the Contract;

3.3.1.2. Changes to the schedule in the Work Order including an extension of a deliverable due date, not to exceed the expiration date of the Work Order;

3.3.1.3 Changes to the individual tasks in the Scope of Work or Work Order, if applicable, that do not substantially change the obligations of the Parties relative to those tasks;

3.4 It is the Contractor’s responsibility to request extensions to the deliverable schedule and other changes that are within the authority of TCEQ.

4. TERM AND AMOUNT OF CONTRACT

4.1 Contract Period. The Contract Period begins on the later of: 1) the Effective Date on the Contract signature page, or 2) the latest date of the parties’ signatures shown on the Contract signature page. The Contract Period ends on the Expiration Date on the signature page.

4.2 Renewals and Extensions. This Contract may be renewed up to three one-year periods by amendment. TCEQ, by unilateral amendment, may extend the Contract for 180 days beyond any expiration of the Contract Period. In a renewal or extension, TCEQ may increase the Maximum TCEQ Obligation by an amount up to the original Maximum TCEQ Obligation.

4.3 Maximum TCEQ Obligation. The Maximum TCEQ Obligation is the greatest amount TCEQ may pay for the Work. There is no guaranteed minimum expenditure by TCEQ.

4.4 Service Adjustment/Contingency Requirement (SACR). TCEQ may in its sole discretion make allowances for unforeseen circumstances or contingency requirements. TCEQ may increase the current Maximum TCEQ Obligation by an amount not to exceed 200% of the original Maximum TCEQ Obligation at the time the Contract was signed.

5. PRICES AND REIMBURSEMENT

5.1 Prices. Prices are firm, fixed, and fully-loaded.

5.2 Cost Reimbursement. Reimbursement is limited to direct costs for items specifically identified on the Price Form or in the Scope of Work and approved by the TCEQ Project Manager before the cost is incurred. Reimbursement requests must be itemized and documented in a format acceptable to TCEQ.

5.3 Records. Contractor must maintain records supporting its costs in accordance with generally accepted accounting principles.

5.4 Reimbursement for Travel. Travel reimbursement is limited to actual costs, and shall not exceed the maximum allowed for State employees by the Texas Comptroller of Public Accounts.

6. QUALITY AND ACCEPTANCE

6.1 Quality Standard. All Work must be complete and satisfactory to the TCEQ. All materials and equipment shall be handled in accordance with instructions of the supplier, except as otherwise provided in the Contract.

6.2 Acceptance. TCEQ relies on Contractor to inspect and test the Work to ensure that it conforms to the Contract requirements. TCEQ relies on the Contractor’s greater expertise in the field of the Work. Any act by TCEQ indicating acceptance, whether express or implied, shall not be deemed to mean that TCEQ has tested or inspected the Work, but rather that TCEQ has accepted the Work in reliance on Contractor’s greater expertise and Contractor’s representation that the Work conforms to all Contract requirements. Contractor's obligation to perform and complete the Work in accordance with the Contract Documents shall be absolute. None of the following will constitute an acceptance of nonconforming Work or a release of Contractor's obligation to perform the Work in accordance with the Contract Documents:

• payment;

• use of the Work or any part of the Work by TCEQ;

• review or approval of a submittal;

• inspection or testing by TCEQ; or

• correction of defective Work by TCEQ.

6.3 Quality Assurance. All Work that involves the acquisition of environmental data shall be performed in accordance with a TCEQ-approved Quality Assurance Project Plan (QAPP) meeting all applicable TCEQ and EPA requirements.

Environmental data includes any measurements or information that describe (1) environmental processes, location, or conditions; or (2) ecological or health effects and consequences. Environmental data includes information collected directly from measurements, produced from models, and compiled from other sources such as databases or the literature. No data collection or other Work covered by this requirement shall be implemented until Contractor receives the QAPP approved by TCEQ and, if necessary, the EPA. TCEQ may refuse payment or reimbursement for any environmental data acquisition performed without an approved QAPP.

6.4 Laboratory Accreditation. Any laboratory data or analyses provided under this Contract must be prepared by a laboratory that is accredited in accordance with 30 Texas Administrative Code (TAC) Chapter 25, Subchapters A and B, for the matrices, methods, and parameters of analysis used, unless one of the regulatory exceptions specified in 30 TAC § 25.6 applies.

7. PAYMENTS AND INVOICES

7.1 Excess Obligations Prohibited. TCEQ’s obligations under this Contract are contingent upon the continued availability of funding. If funds become unavailable due to lack of appropriations, legislative or executive budget cuts, amendment of the Appropriations Act, state agency consolidations, or any other disruption of current appropriations, TCEQ may terminate this contract.

7.2 Invoice. Contractor will submit invoices no later than the 15th day of every month after the services are completed. The invoice may be rejected for failure to comply with all invoice requirements.

7.2.1 If the Contract has an approved Subcontracting Plan, a Progress Assessment Report (PAR Form) describing any subcontracting activity must also be submitted with the invoice.

7.3 Invoice Contents. The Contractor must include the following information on the face of all invoices: invoice number, invoice date, TCEQ Contract number, Work Order number if any, Vendor Identification Number, period covered by the invoice, item and unit description, quantity, unit price, extended price, and total amount for which Contractor is requesting payment. Contractor shall submit its invoice to the TCEQ Contract Manager.

7.4 State Agencies/Institutions of Higher Education. If the Contractor is a State agency or institution of higher education payments must be made via interagency transaction voucher (ITV), please provide a Recurring Transaction Index (RTI) number on the face of the invoice OR if payments are to be deposited into a local bank account, the following statement must be placed on the face of the invoice: “Funds to be deposited into local bank account.” For additional information, please refer to the Texas Comptroller’s Accounting Policy Statement (APS) 014.

7.5 Progress Payment. A progress payment is a payment made on a portion of the Work that is part of a line item designated on the Price Form. The Contractor’s written request must include a description of the relevant portion of the Work.

Contractor may request, and TCEQ at its sole discretion may issue or refuse, a progress payment.

7.6 Final Payment. Contractor must submit its invoice for final payment within 30 days of completion of the Work.

7.7 Retainage. TCEQ may withhold 5% or less of each payment as retainage. Release of retainage may be requested in the final invoice.

7.8 Release of Claims by Contractor. The final invoice shall be accompanied by a complete and legally effective release of TCEQ from all known and unknown claims relating to the Contract on a form provided by TCEQ. Contractor’s acceptance of final payment constitutes a waiver of all claims against TCEQ related to the Contract, known or unknown.

7.9 Assignment of Claims. Contractor may assign its right to be paid under this Contract. Any assignment shall cover all unpaid amounts payable under this

Contract. An assignment does not relieve Contractor of any obligation under this Contract. All assignments must be approved by both assignor and assignee in writing and submitted to the TCEQ Contract Manager. Notwithstanding any contrary provision in applicable law, TCEQ shall have no liability to Contractor or to any assignee on any claim arising from TCEQ’s directing payment to Contractor instead of an assignee, or to an assignee instead of Contractor.

7.10 Prompt Payment Act. In accordance with the Texas Prompt Payment Act, TCEQ will pay an acceptable invoice within 30 days of receipt.

7.11 Disputed Invoices. TCEQ may dispute an invoice by sending a notice in writing to the Contractor within 21 days of receipt. TCEQ may make a partial payment and dispute the difference on the invoice.

7.12 Liability for Taxes. Contractor will pay all taxes resulting from this Contract including, any federal, state, or local income, sales or excise taxes of Contractor or its employees.

7.13 Lobbying. In accordance with Texas Government Code Chapter 556, funds received under this Contract may not be used toward lobbying expenses of an individual or entity.

7.14 Debts and Delinquencies Affirmation. Contractor agrees that any payments due under the Contract shall be applied towards any debt or delinquency that it owes to the State of Texas.

8. COMMUNICATIONS AND NOTICES

8.1 Notices. All notices shall be made in writing and be delivered to a party's designated Contract Manager and Project Manager. Notices are effective upon receipt. If the Contractor has no Contract Manager, TCEQ may send notices to any address previously provided by the Contractor.

8.2 Claim. Contractor shall give notice to TCEQ of any claim, demand, suit, or other action (a “Claim”) asserted against Contractor which either arises in relation to the Contract, or which could have an adverse material effect on Contractor’s ability to perform the Work. Contractor shall give notice directly to the TCEQ Manager of Procurements and Contracts within three days of Contractor’s receipt of notice of the Claim. The notice shall state the date of the Claim, the names and addresses of the claimants, the basis of the Claim, the name of each person or entity against whom the Claim is asserted, and the amount of the Claim.

8.3 Notice of Conflict of Interest. Contractor shall give notice to TCEQ of any actual, apparent, or potential conflict of interest regarding Contractor or any entity or individual performing any portion of the Work. As determined by TCEQ, any entity with an organizational conflict of interest and any individual with a personal conflict of interest must not take part in any way in the performance of any portion of the Work that creates the conflict of interest. TCEQ has sole discretion to decide whether an actual, apparent, or potential conflict exists.

Any such conflict is cause for termination.

8.4 Bankruptcy. If Contractor becomes the subject of a voluntary or involuntary bankruptcy proceeding, Contractor shall immediately give notice to TCEQ and send a copy of this notice to TCEQ Bankruptcy Program MC-132, P. O. Box 13087, Austin, TX 78711-3087. The notice must include the Contract number.

9. SHIPMENT AND DELIVERY OF GOODS AND MATERIAL SAFETY DATA

SHEETS

9.1 Shipping Terms. All shipments shall be made Free on Board (FOB) destination, full freight allowed and not invoiced. Delivery shall be made between the hours of 8 a.m. and 5 p.m. Central Time, Monday through Friday, excluding State holidays, unless prior approval for another delivery time has been granted by TCEQ. Each shipment must be accompanied by a packing slip. Packing slips should reflect the TCEQ contract number, item description, lot number and quantity, if applicable.

9.2 Safety Data Sheet. Contractor must provide to TCEQ, at no cost, at least one copy of any applicable manufacturer's Safety Data Sheet (SDS) (formerly known as Material Safety Data Sheet or MSDS) for any chemical materials provided.

Contractor must make available, at no cost, the relevant manufacturer’s SDS to any person that may be affected by the Work.

10. SUPERINTENDENCE BY THE CONTRACTOR

10.1 Contractor’s Responsibility for Subcontractors. All acts and omissions of subcontractors, suppliers and others performing or furnishing any of the Work under a direct or indirect contract with Contractor (“Subcontractors”) are imputed to Contractor. Nothing in this Contract creates a contractual relationship between TCEQ and any Subcontractor except for product warranties for goods supplied by a third-party manufacturer and delivered to TCEQ. Nothing in this Contract creates any obligation for TCEQ to pay any Subcontractor. Contractor is solely responsible for scheduling and coordinating the work of Subcontractors, and for all communications to Subcontractors.

10.2 Superintendence of the Work. Contractor shall supervise all Work. Contractor is solely responsible for the means, methods, design, processes, procedures and conduct of the Work. This responsibility includes control of associated hazards to assure the safety of the performance of the Work, and for the protection of all persons, property, premises and facilities which may be affected by the Work. No action by TCEQ will transfer this responsibility to TCEQ. Contractor shall maintain a superintendent capable of overseeing performance of the Work at any location where Work is performed.

10.3 Routine Reviews. If the Contractor will perform research or work on critical infrastructure, or have access to critical infrastructure, the Contractor has a continuing obligation…