2-Addendum 1 260206.pdf

August 26, 2026

CITY OF WICHITA, KANSAS

REQUEST FOR PROPOSAL 260206

ADDENDUM # 1

Airport On-Call Environmental Services

DUE DATE: FRIDAY, SEPTEMBER 4, 2026 AT 10:00 A.M.

The following additions, deletions, and/or changes have been added to the specifications and made a part of this proposal 260206.

See Attachment for Addendum # 1 items

Each vendor is required to acknowledge receipt of this Addendum by electronic acknowledgement via City’s Procurement Portal (wichita.gov/procurementportal) and to file same with and attached to this bid.

Josh L. Lauber Purchasing Manager

ADDENDUM COVER PAGE

The submitter electronically acknowledges via City’s Procurement Portal (wichita.gov/procurementportal) by completing submission, receipt of this Addendum and the vendor response submitted herewith is in accordance with the information, instruction, and stipulations set forth herein.

https://wichita.gov/procurementportal https://wichita.gov/procurementportal

August 26, 2026

ADDENDUM NO. 1

TO

WICHITA DWIGHT D. EISENHOWER NATIONAL AIRPORT

On-Call Environmental Services - Airport

FORMAL BID NO. FB 260206

To All Prospective Bidders:

The Contract Documents for the referenced airport project dated August 7, 2026, are hereby amended in the following particulars only. All other terms and conditions remain unchanged.

GENERAL CLARIFICATIONS

Item No. 1: Has previous environmental work been conducted at any of the properties that work is anticipated to be requested at. If so, can you please provide any relevant Phase I or Phase II Site Assessments, soil or groundwater investigations, sampling activities, remediation activities, or other related environmental services for those sites?

Preliminary Schedule Summary:

No, work is to be completed on WAA Parcels that have had no previous assessment(s).

Item No. 2: Can you please identify any known environmental concerns, regulatory issues, notices of violation, or other open environmental matters associated with any properties that work is anticipated to be requested for.

The selected consultant is to provide environmental information discovered to the WAA (for that Parcel). Any prior concerns would be disclosed.

Item No. 3: Are there any preferred or required subcontractor vendors, or service providers that the selected consultant will be expected to utilize, including laboratories, utility-locating services, drilling contractors, surveyors, or other specialty services?

No, the selected contractor is free to choose sub-contracted vendors who satisfy their pricing scenarios.

Item No. 4: Are there any site-specific training, security, safety, or certification requirements that personnel or subcontractors will be required to complete prior to performing work at the properties?

Not specifically, the WAA will provide access to sites under WAA escort guidelines. Regarding Phase-II sampling work, an experienced, degreed Geologist or Engineer is required.

Item No. 5: Are there any special access, security, safety, background check, or operational restrictions associated with working at or near airport facilities, runways, taxiways, aircraft operating areas, or other restricted areas?

Any specific access (AOA) will be under escort procedures provided by Departments within the WAA.

Item No. 6: According to Page 1 of the RFP, a tentative project award date is set for October 13, 2026. Does this date coincide with the start date for services under the contract? Will that date be used in reference to yearly contract renewals?

That date is tentative, but yes, the renewals will have the same date each year.

Item No. 7: Does the scope anticipate work outside of normal business hours, including evenings, weekends, holidays, or overtime work? If so, please clarify whether such work will require prior authorization, and how associated labor and other costs should be accounted for in the proposal.

All work is to be performed under weekly timeframes (typically 0800-1700), no weekends. The WAA and the contractor will work together regarding scheduling in anticipation of holidays/City holidays; this also includes sub-contractors (laboratories, utility locate services, etc.).

Item No. 8: Please clarify whether the requirements to hold fees and expenses constant for the first two years apply to subcontractor costs, drilling costs, and other third-party expenses.

Yes, the requirements to hold fees and expenses constant for the first two years apply to subcontractor costs, drilling costs, and other third-party expenses.

Item No. 9: The RFP states "Phase I work shall be performed in accordance with the American Society for Testing and Materials (ASTM) “Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment (ESA) Process” (ASTM E 1527-13)."

However, the current standard is 1527-21. Can you confirm which standard we will need to conform with?

The standard to conform with is 1527-21.

Item No. 10: Utilization of a S/EBE is a part of the scoring criteria for this contract. Is there a utilization goal for this S/EBE we list on our team?

S/EBE participation is not mandatory; however, evaluation points will be given for S/EBE participation.

END OF ADDENDA NO. 1