Opportunity Information: Apply for G25AS00340
This opportunity (Funding Opportunity Number G25AS00340) is a USGS-issued cooperative agreement aimed specifically at partners affiliated with the Great Rivers Cooperative Ecosystem Studies Unit (CESU). It is being offered through the USGS Central Midwest Water Science Center and is focused on advancing regional water-availability assessments for the Illinois River Basin (ILRB). The ILRB is defined here as the watershed upstream of the Mississippi River confluence at Grafton, Illinois, and it has been selected as a Midwestern regional basin for the USGS Integrated Water Availability Assessments (IWAAs), with particular attention on nutrient-related problems and harmful algal blooms (HABs). The larger USGS goal behind IWAAs is to build stakeholder-driven capabilities that provide near real-time accounting and prediction of water availability for both human needs and ecological health across regional and national scales, where "water availability" is understood broadly to include not just the amount of water, but also its timing, quality, and how it is used.
The funded work is meant to be collaborative, pairing USGS scientists with a CESU-affiliated partner to support both local and basin-wide assessment needs. The specific research emphasis is on an existing Illinois River Basin groundwater model built in MODFLOW 6. The project is expected to support finalizing and publishing that initial groundwater flow model, and then extending its application to simulate subsurface nitrate. In practice, that points to work that strengthens the scientific foundation for understanding groundwater contributions to nutrient loading and related water-quality outcomes, which connects directly to the basin focus on nutrients and HABs. Because these regional assessments are also intended to serve as "reference basin" efforts, the outputs are meant to feed into broader USGS capacity building, helping improve how integrated assessment and prediction tools are developed and applied nationwide, in coordination with the USGS Integrated Water Science (IWS) Basin planning process.
Administratively, this is a discretionary funding opportunity under a cooperative agreement mechanism, categorized under Science and Technology and other Research and Development, with CFDA number 15.808. Eligibility is limited to entities that are participating partners in the Great Rivers CESU Program (listed under "Eligible Applicants: Others," but constrained by the CESU partnership requirement). The posted award ceiling is $50,000, and the opportunity listing does not specify a set number of expected awards. The opportunity was created on 2025-08-08, and the original closing date is 2025-09-08.Apply for G25AS00340
- The Geological Survey in the science and technology and other research and development sector is offering a public funding opportunity titled "Cooperative Agreement for affiliated Partner with the Great Rivers Cooperative Ecosystem Studies Unit (CESU)" and is now available to receive applicants.
- Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 15.808.
- This funding opportunity was created on 2025-08-08.
- Applicants must submit their applications by 2025-09-08. (Agency may still review applications by suitable applicants for the remaining/unused allocated funding in 2026.)
- Each selected applicant is eligible to receive up to $50,000.00 in funding.
- Eligible applicants include: Others.
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Frequently Asked Questions (FAQs)
1) What is the Funding Opportunity Number (FON) for this grant?
The Funding Opportunity Number is G25AS00340.
2) Which federal agency is offering this opportunity?
This is a USGS-issued cooperative agreement opportunity (U.S. Geological Survey).
3) What type of award is this?
The opportunity is offered as a cooperative agreement, which is designed to support collaborative work between USGS scientists and an eligible partner.
4) Is this a competitive or discretionary opportunity?
It is described as a discretionary funding opportunity.
5) Who is eligible to apply?
Eligibility is limited to partners affiliated with the Great Rivers Cooperative Ecosystem Studies Unit (CESU). The listing notes "Eligible Applicants: Others," but the opportunity is specifically constrained to entities that are participating partners in the Great Rivers CESU Program.
6) Are non-CESU organizations eligible?
Based on the information provided, the opportunity is aimed specifically at Great Rivers CESU-affiliated partners, so entities outside that partnership are not eligible under the stated requirements.
7) Which USGS office is administering or issuing this opportunity?
The opportunity is being offered through the USGS Central Midwest Water Science Center.
8) What is the geographic focus of the work?
The project focuses on the Illinois River Basin (ILRB), defined here as the watershed upstream of the Mississippi River confluence at Grafton, Illinois.
9) What program or initiative is this work supporting?
The work supports the USGS Integrated Water Availability Assessments (IWAAs), and the Illinois River Basin has been selected as a Midwestern regional basin for these assessments.
10) Why is the Illinois River Basin important in this opportunity?
The basin is being used as a Midwestern regional basin for IWAAs, with particular attention on nutrient-related problems and harmful algal blooms (HABs).
11) What is meant by "water availability" in this opportunity?
"Water availability" is defined broadly to include not only the amount of water, but also its timing, quality, and how it is used, for both human needs and ecological health.
12) What is the main technical focus of the funded work?
The research emphasis is on an existing Illinois River Basin groundwater model built in MODFLOW 6. The project is expected to support finalizing and publishing the initial groundwater flow model and then extending its application to simulate subsurface nitrate.
13) What model platform is specifically referenced?
MODFLOW 6 is specifically referenced as the platform used for the existing Illinois River Basin groundwater model.
14) What are the expected project activities or deliverables?
Based on the provided description, the work is expected to (1) support finalizing and publishing the initial groundwater flow model and (2) extend the model to simulate subsurface nitrate.
15) How does this work connect to nutrients and harmful algal blooms (HABs)?
By extending the groundwater modeling to simulate subsurface nitrate, the project is intended to strengthen the scientific foundation for understanding groundwater contributions to nutrient loading and related water-quality outcomes, which aligns with the basin focus on nutrients and HABs.
16) Is the work intended to be collaborative with USGS staff?
Yes. The funded work is described as collaborative, pairing USGS scientists with a CESU-affiliated partner to support both local and basin-wide assessment needs.
17) What is the broader USGS goal behind the Integrated Water Availability Assessments (IWAAs)?
The broader goal is to build stakeholder-driven capabilities that provide near real-time accounting and prediction of water availability across regional and national scales, addressing both human needs and ecological health.
18) What does it mean that the basin is part of "reference basin" efforts?
The description indicates the outputs are meant to feed into broader USGS capacity building, improving how integrated assessment and prediction tools are developed and applied nationwide.
19) How does this relate to USGS Integrated Water Science (IWS) Basin planning?
The opportunity notes that these efforts are intended to contribute to broader USGS capacity building in coordination with the USGS Integrated Water Science (IWS) Basin planning process.
20) What is the CFDA number for this opportunity?
The CFDA number provided is 15.808.
21) What is the award ceiling (maximum funding amount)?
The posted award ceiling is $50,000.
22) How many awards will be made?
The opportunity listing does not specify a set number of expected awards.
23) What is the funding category for this opportunity?
The opportunity is categorized under Science and Technology and other Research and Development.
24) When was this opportunity created?
The opportunity was created on 2025-08-08.
25) What is the application deadline?
The original closing date is 2025-09-08.
26) What kinds of assessment needs is the project expected to support?
The project is meant to support both local and basin-wide assessment needs for the Illinois River Basin, within the context of regional water-availability assessments.
27) What is the central water science center involved?
The USGS Central Midwest Water Science Center is the center named in the opportunity description.
28) What is the intended impact of the modeling work?
The intended impact is to improve understanding of groundwater flow and subsurface nitrate in the Illinois River Basin, supporting nutrient-focused water-quality objectives and contributing outputs that can be used in broader USGS integrated assessment and prediction tool development.
29) Does the opportunity mention near real-time forecasting?
Yes. The larger USGS goal behind IWAAs includes capabilities that provide near real-time accounting and prediction of water availability.
30) Is the opportunity focused only on water quantity?
No. The opportunity frames water availability broadly to include quantity, timing, quality, and use of water.
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