Scientific services contracts - requests for proposal

TxDOT's environmental affairs division manages its contracts by issuing requests for proposals (RFPs) to solicit proposals from service providers. The division issues contracts pursuant to the Texas Transportation Code, Chapter 223, Subchapter D, and 43 TAC §§9.80-9.88. When RFPs are available, service providers may download the RFP from the Electronic State Business Daily after it is posted. A letter of interest must be submitted upon downloading the RFP.

Find the schedule of TxDOT Environmental Affairs contracts.

Statewide Environmental Stormwater Services
(576SM001-601CT0000005606)

TxDOT’s Environmental Affairs Division anticipates issuing an RFP soliciting proposals for indefinite deliverable, scientific services contracts for performing environmental stormwater services as required for transportation activities under state and federal statutes including Sections 402 and 303 of the Clean Water Act, 30 TAC, Chapter 213 and all related statutes and standards related to compliance with stormwater environmental rules and regulations. Services may include: outfall mapping and verification, performing field surveys including dry weather and wet weather outfall screening, Illicit Discharge Detection and Elimination (IDDE) inspections and screening, construction general permit (CGP) inspections, non-engineering spill prevention planning, field data collection, data post-processing, data evaluation, data reporting, producing reports, providing technical support, creating tools, templates, and manuals, conducting public notices, and providing assistance in support of TxDOT’s compliance with federal and state statutes and regulations related to compliance with and implementation of stormwater environmental standards and other tasks required in the NPDES or TPDES Permits. Additional services required to fulfill the State’s obligations and facilitate the State’s compliance with federal and state environmental stormwater requirements may also be requested under this contract. The RFP announcement will be posted on Texas Smartbuy (ESBD) during January 2026. RFPs will not be released prior to posting to ESBD.