Spanish-Language Access in U.S. Water Quality Reports
A data-journalism findings page examining how 1,432 U.S. water systems serving large Spanish-speaking populations present Spanish-language information in their Consumer Confidence Reports.
Key Findings
Of the 1,432 U.S. water systems whose service areas meet California's published Spanish-LEP benchmark (≥1,000 or ≥10% Spanish limited-English proficient residents), 675 had a CCR PDF with recoverable text. Of those assessed, 25 (3.7%) carried a full Spanish translation within the PDF itself. The remaining 650 (96.3%) contained only a Spanish courtesy notice — a brief statement, not a full translation.
The presence of a full Spanish CCR increases with service-area Spanish-LEP share: systems where ≥20% of residents are Spanish-LEP show the highest rate (30.2%), while systems below 5% LEP show only 0.2%. This gradient suggests translation decisions track community composition, though the overall rate remains low across assessed systems.
Full Spanish CCR Rate by Service-Area Spanish-LEP Share
Assessed systems only (n = 675). Shares reflect Census C16001 Spanish-LEP estimates applied to the systems' ZIP code service areas.
| LEP Share Tier | Spanish-LEP % | Full Spanish CCR |
|---|---|---|
| High | ≥20% | 30.2% |
| Mid-High | 10–20% | 2.6% |
| Mid-Low | 5–10% | 3.2% |
| Low | <5% | 0.2% |
Methodology
The 1,432-system universe applies California's published Spanish-LEP numeric threshold (≥1,000 OR ≥10% Spanish-LEP persons age 5+ in the service area) as a national benchmark for “Spanish-access relevance.” This threshold is the only published numeric standard in the U.S.; we use it as a comparative benchmark, not a per-system legal obligation.
Spanish-LEP population estimates are derived from U.S. Census Bureau American Community Survey table C16001 (language spoken at home and ability to speak English), aggregated to each system's ZIP code service area using EPA SDWIS service-area boundaries.
Under 40 CFR §141.153(h)(3), multilingual information in Consumer Confidence Reports is required only “in communities with a large proportion of [LEP] consumers as determined by the Primacy Agency.” A courtesy notice (brief Spanish statement directing residents to contact the utility) satisfies this requirement. There is no federal numeric threshold mandating a full Spanish CCR; the California benchmark used here is applied solely as an analytical reference point.
Systems by State
Top 10 states by count of systems meeting the Spanish-LEP benchmark:
CA 371 • TX 155 • FL 96 • IL 90 • NM 48 • NY 45 • GA 39 • NJ 35 • WA 35 • AZ 34
Multilingual CCR Programs
84 systems in this dataset list two or more non-English languages in their CCR, indicating a multilingual outreach program. These systems are included in the broader 1,432-system set regardless of whether they publish a full Spanish translation.
Download the Dataset
DOI: 10.5281/zenodo.20217878 CC-BY-4.0
Reproducibility
To reproduce this dataset from source data, run the following pipeline scripts from the repository root:
System Directory
All 1,432 water systems in the dataset. Click a column header to sort. Use the search box to filter by system name, state, or PWSID.
| Water System | State | Spanish-LEP % | CCR Spanish Status |
|---|---|---|---|
| Loading directory… | |||
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