Colorado SLV·Aquifer Level-1.2M▼ 3.2%│
EU CER·Compliance7 states▼ 12%│
Calgary·Efficiency+18%▲ 18%│
Melbourne·Resilience91/100▲ 4.2%│
Spain UWWTD·ComplianceFAIL▼ 8.5%│
US Breadbasket·Drought Index130yr▼ 22%│
Aral Sea·Volume-90%▼ 1.4%│
Sweden GW·LevelsLOW▼ 6.8%│
Colorado SLV·Aquifer Level-1.2M▼ 3.2%│
EU CER·Compliance7 states▼ 12%│
Calgary·Efficiency+18%▲ 18%│
Melbourne·Resilience91/100▲ 4.2%│
Spain UWWTD·ComplianceFAIL▼ 8.5%│
US Breadbasket·Drought Index130yr▼ 22%│
Aral Sea·Volume-90%▼ 1.4%│
Sweden GW·LevelsLOW▼ 6.8%│
Data Methodology

How We Calculate the E·Score

The E·Score is a 0–100 index that distills operational, financial, and regulatory signals into a single measure of water utility performance. Here's how it's built.

Data Sources

  • Public regulatory filings and compliance records
  • Utility asset management and capital plans
  • Government infrastructure and drought monitoring datasets
  • Peer-reviewed academic research and case studies
  • Verified news reporting and industry disclosures

Scoring Factors

Operational Risk

Asset condition, incident history, and system resilience

Regulatory Compliance

Standing against applicable water quality and reporting standards

Financial Health

Capital planning, reserve funding, and rate sustainability

Management Practices

Presence of systematic, documented operational protocols

Our Process

  1. 01

    Collect data from public, regulatory, and academic sources on an ongoing basis.

  2. 02

    Normalize and weight each factor against comparable utilities and regions.

  3. 03

    Cross-check findings with case studies and current events for context.

  4. 04

    Publish scores alongside the reporting and analysis behind them.

Evidence Over Politics

Every score traces back to a verifiable source. Where data is limited or uncertain, we say so — the E·Score is a tool for informed judgment, not a substitute for it.