Federal grants to Carollo Engineers Inc
Carollo Engineers Inc in Walnut Creek, California received $5.5 million in federal grants from fiscal 2021 to 2025, across 6 awards. Its largest program was Conservation Research and Development, with $4.2 million. In fiscal 2025 more was taken back from its awards than added, a net -$55,906.
From USAspending.gov award records, updated October 31, 2026.
- Grants, FY 2021 to 2025$5.5 million
- Awards6
- Awarded in FY 2025-$55,906
- Largest award$2.3 million
By year
| Fiscal year | Awards | Amount |
|---|---|---|
| FY 2021 | 2 | $2.4 million |
| FY 2022 | 1 | $641,900 |
| FY 2023 | 3 | $2.5 million |
| FY 2024 | 0 | $0 |
| FY 2025 | 0 | -$55,906 |
Programs that fund Carollo Engineers Inc
| Program | Awards | Amount |
|---|---|---|
| Conservation Research and Development | 2 | $4.2 million |
| Water Desalination Research and Development | 2 | $817,543 |
| SECURE Water Act – Research Agreements | 2 | $399,989 |
Awarding agencies
| Agency | Awards | Amount |
|---|---|---|
| Department of Energy | 2 | $4.2 million |
| Department of the Interior | 4 | $1.2 million |
Largest awards
| Award | Program | First action | Amount |
|---|---|---|---|
| Mainstream aerobic wastewater treatment using process-produced hydrogen peroxide | Conservation Research and Development | September 27, 2023 | $2.3 million |
| Transforming aeration energy in water resource recovery facilities (WRRFS) through suboxic nitrogen removal | Conservation Research and Development | September 24, 2021 | $1.9 million |
| Reverse osmosis based water reuse produces a high quality purified water, but there is room for significant improvement to optimize energy and cost influent water quality can be dynamic and requires multiple treatment barriers for chemical and pathogen removal in this work, faults detected will incl | Water Desalination Research and Development | September 7, 2022 | $641,900 |
| Carollo engineers has teamed with eastern municipal water district, cal poly pomona, dupont, and aquacycl to set up and operate a novel wastewater pilot treatment configuration to produce water suitable for recharging groundwater basins, while diverting organic carbon and consuming less electrical p | SECURE Water Act – Research Agreements | July 25, 2023 | $200,000 |
| For both direct potable reuse and indirect potable reuse applications, there are two prevailing treatment approaches: one centered on reverse osmosis, known as reverse osmosis-based advanced treatment, and the other known as carbon-based advanced treatment and based on a combination of ozone-biologi | SECURE Water Act – Research Agreements | August 24, 2023 | $199,989 |
| Pilot study for biological selenium removal from agricultural drainage water | Water Desalination Research and Development | September 24, 2021 | $175,643 |
Questions people ask
How much federal grant money does Carollo Engineers Inc get?
$5.5 million in 6 grant awards from fiscal 2021 to 2025, as obligations reported to USAspending.gov.
Which agency gives Carollo Engineers Inc the most?
The Department of Energy, with $4.2 million in 2 awards. The Department of the Interior follow.
What is Carollo Engineers Inc's largest federal grant?
$2.3 million under Conservation Research and Development, with its first action in the period on September 27, 2023. That counts only the money obligated in fiscal 2021 to 2025.
Which federal programs fund Carollo Engineers Inc?
Its largest are Conservation Research and Development, Water Desalination Research and Development and SECURE Water Act – Research Agreements.
Other grant recipients in Walnut Creek
Largest federal grant recipients in California · Federal grants in California