D--HYDROLOGICAL DATABASE (HDB) SUPPORT SERVICES
INTERIOR, DEPARTMENT OF THE
Notice type
Sources Sought
Solicitation #
140R4026R0021
NAICS
541511
PSC
DJ01
Posted
July 13, 2026
Response due
July 27, 2026
Description
HYDROLOGICAL DATABASE (HDB) SUPPORT SERVICES IDIQ
DRAFT PERFORMANCE WORK STATEMENT
1. SCOPE:
1.1. OBJECTIVE:
The objective of this performance-based contract is to maintain, support, and further
develop the Bureau of Reclamation's Hydrological Database (HDB) through the Contractor's
provision of services for on-call technical support, troubleshooting of HDB malfunctions,
development of modifications to HDB, support of HDB enhancements, and the
development, documentation, and distribution of software applications that interface with
HDB.
1.2. BACKGROUND:
HDB is currently used in production in the Upper Colorado Basin Region, in all four of its
area offices, in the Lower Colorado Basin Region in the Boulder Canyon Operations Area
and Yuma Area Offices, in the Missouri Basin and Arkansas-Rio Grande-Texas Gulf Region in
the Eastern Colorado Area Office, in the California Great Basin Region in the Lahontan Basin
Area Office and in the Klamath Basin Area Office. Each of these offices support separate
instances of HDB for the collection and storage of vital hydrological data within their
operational jurisdiction to aid in decision support and reporting for Reclamation facilities
managed within each of these offices.
The HDB system is a critical decision support tool for day-to-day operations of many of
Reclamation’s major water storage and distribution facilities throughout the Western
United States. HDB is critical for enabling and supporting ongoing modeling activities that
include (but are not limited to) basin inflow forecasting, National Environmental Policy Act
(NEPA) and Endangered Species Act (ESA) compliance processes, long- and mid-term
modeling and planning efforts, and day-to-day operational control and management. HDB
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is also utilized to support Reclamation’s website and other publicly available data portals
such as Reclamation Information Sharing Environment (RISE), and public and internal
Application Programming Interfaces (APIs).
The HDB is the foundation for Reclamation's Database of Record. As conceptualized by the
Database of Record defining document, the driving vision for the Hydrologic Database is
to:
• Consolidate data previously existing in various systems and personal spreadsheets.
• Assure complete and consistent data collection and storage; documentation of data
sources.
• Provide historical information on other existing HDB data versions including
information on when the data was either used or available for use.
• Perform as a means of quality control.
• Allow the user access, at any time interval, to the original source data for calculated
or summarized data
• Provide for an automated generation of time-aggregated summary data as well as
automated computations that compute data parameters based on collected inputs.
Reclamation managers are often interrogated formally or informally regarding the basis for
operational decisions - decisions that are usually based on data such as forecasts, flows,
available water supply and downstream water and/or energy demands. Reasonable
explanation of decisions requires maintaining the exact data considered in the decision and
being able to reproduce the overall state of the system and retrieve forecast information
available at the time the decision was made. Enhanced capability to document the basis for
the past decisions is urgently needed to assist Reclamation's defense in litigation and other
processes.
Development of the database of record will facilitate Reclamation's continued ability to rely
on and interpret their data in order to make sound operational decisions, provide an
indisputable record of data used to make past decisions, and provide a complete record of
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best available historical and forecast data for research proposed and policy development.
The HDB system is comprised of the Oracle based HDB databases combined with a collection
of software applications (computer programs) that are set up to automatically collect and
store a variety of operational and hydrologic data from various data sources. Software
applications within the system also allow operational staff to access the data for quality
control as well as hydrologic modeling studies, water accounting efforts, and day-to-day
operations and modeling of dams, reservoirs and related assets and features. Some of these
software applications collect and store data in HDB while others allow data to be retrieved
from HDB and displayed in ways that assist operations staff and the public to interpret the
state of the hydrologic system.
2. REFERENCES:
2.1. Hydrological Database - Bureau of Reclamation
http://hydrodb.net
2.2. National Environmental Policy Act
http://www.epa.gov/nepa
2.3. Endangered Species Action
https://www.law.cornell.edu/wex/endangered_species_act_(esa)
3. DEFINITIONS:
3.1. Qualified Contractor Personnel: means those Contractor employees directly performing
work under this contract who collectively possess and maintain all of the following skills,
capabilities, and knowledge to provide a high-quality level of technical support services.
Individual personnel assigned to specific tasks must have the relevant qualifications for
those tasks; however, the full set of qualifications may be met and maintained by the
contractor’s team as a whole throughout the life of the contract. These qualifications
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include:
3.1.1. High level of knowledge with regard to the HDB database structure, including
database relationships in HDB, including DECODES and the Computational
Processor.
3.1.2. Full understanding of the HDB objectives with respect to time-series data
management including, but not limited to: computation management, interval
data consistency, model data management, validation and quality assurance, etc.
3.1.3. Expert-level proficiency in Oracle database Operations and Maintenance and
programming, as well as other computer programming languages such as JAVA, C,
python, C#, Perl, and VB.net.
3.1.4. Ability …
Source: SAM.gov, as posted. Verify the current solicitation before responding.
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