Streamlined Reporting. Stronger Decisions.
Advancing AB 1755 through coordinated water data — modernizing California's water data collection and sharing for a resilient future.
Learn MoreWhat It Is
The Coalition for Water Data Streamlining is a statewide initiative supporting AB 1755, the Open and Transparent Data Act, to modernize water data collection and sharing with high-quality, clear, and accessible information for resilient water management.
Inconsistencies in definitions, processing methods, and quality assurance hinder timely interpretation and regional aggregation. By aligning definitions, timelines, and reporting structures, the Coalition ensures AB 1755 investments deliver maximum value while minimizing reporting burden.
Less Duplicative Reporting
Aligning definitions, timelines, and reporting structures to minimize burden on local agencies.
More Confidence in Data
Consistent quality assurance ensures reported data is reliable for regional aggregation and analysis.
Better Local & State Alignment
Coordinated reporting bridges the gap between local decisions and statewide planning.
Stronger Transparency & Trust
Open, accessible data builds public confidence in water management decisions.
Why It's Needed
Local agencies, consultants, and state partners are aligned in their desire for coordinated, durable solutions. The Coalition translates years of analysis into practical action.
Implement AB 1755's Vision
AB 1755 established California's vision for open, integrated, and accessible water data. The Coalition advances this by focusing on how data is collected and reported at the source.
Modernize Data Infrastructure
Water supply and use data is vital for understanding trends and future planning, yet often unavailable in the timeframes or formats needed for real-world management.
Momentum & Opportunity
New legislation, advancing data platforms, and growing expectations for transparency have created a moment when alignment, readiness, and opportunity converge.
Equity & Affordability
Addressing challenges like affordability, equity, and climate resilience starts with giving water managers modern, consistent data infrastructure.
Who's Involved & Our Roles
The Coalition is led collaboratively by four core partners, engaging local agencies, consultants, and other stakeholders to ensure solutions are locally grounded and statewide actionable.
California Data Collaborative
Provides technical expertise, data infrastructure, analytics, and implementation support.
California Water Efficiency Partnership
Leads statewide coordination, outreach, and capacity-building to ensure practical, agency-informed solutions.
California Water Data Consortium
Provides policy analysis, research, and statewide context to support long-term system alignment.
Association of California Water Agencies
Connects the effort to agency leadership, governance, and policy pathways.
What We're Doing
The Coalition builds on the California Water Data Consortium's 2022 California Urban Water Data Reporting findings. Its technical working group meets virtually every other week to strengthen cross-sector alignment while actively designing and testing practical solutions.
Current & Near-Term Outcomes
- Shared data dictionaries and reporting rules
- Pilot projects demonstrating streamlined reporting in practice
- Technical assistance and capacity-building
Long-Term Vision
The Coalition's vision is to create a streamlined data system — a one-stop shop — that is agile, straightforward, and equitable, ensuring the data provided to the State answers legislative questions, strengthens both local and state capacity, and is accessible and transparent.
From Fragmented to Coordinated
Together, we can move from fragmented reporting to a coordinated water data system that works: for agencies, for the State, and for the communities we serve.
How Agencies Can Participate
- Signing the Coalition support letter
- Sharing reporting challenges, data needs, and past streamlining efforts
- Participating in pilots, working groups, or feedback sessions
- Engaging internal leadership, analysts, and legislative teams
- Supporting the effort financially or through in-kind participation
White Papers & Resources
Explore our research and publications guiding California's water data modernization.
AB 1755 Implementation Framework
A comprehensive framework for implementing the Open and Transparent Water Data Act across California agencies.
Water Data Interoperability Standards
Proposed standards for ensuring data compatibility between diverse water management systems statewide.
Equity in Water Data Access
Analysis of disparities in water data availability and recommendations for equitable access.
Climate Resilience Through Open Data
How transparent water data can strengthen California's climate adaptation strategies.
Sign On to Support Water Data Streamlining
Your participation will help demonstrate the need for statewide action and ensure that solutions reflect the real experiences of agencies across California.