Side-by-side water intelligence

Compare water intelligence.

Put cities, states, water systems, or ZIP codes next to each other and read the measurable differences. PurityMap never combines them into a single winner or safety verdict.

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Up to 3, side by side. No overall score, rank or verdict. Missing evidence stays missing.
Water systemYORBA LINDA WATER DISTRICTCA3010037 · CA
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Identity

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BasisEach column shows its latest public record. Sample years can differ between columns, so compare with care.

FieldYORBA LINDA WATER DISTRICT
SystemYORBA LINDA WATER DISTRICT
PlaceYorba Linda
Population served84,292
Source typeSurface Water
Record updated2026-09-16
Findings on record31
Above a listed reference1
Substance by substance

Where the records differ

Detected results first. Each cell keeps the published result and its record state. “No record” is different from “not detected”.

  • Above a reference
  • Detected, within reference
  • Not detected
  • No record
Substance · referenceYORBA LINDA WATER DISTRICT
Lithium10.0 µg/L EPA health reference level (screening, not a legal limit)36.38µg/LAbove a reference
Perfluorobutanoic acid (PFBA)No federal or state limit; shown for transparency20.6ng/LDetected, no limit
Perfluoropentanoic acid (PFPeA)No federal or state limit; shown for transparency5.3ng/LDetected, no limit
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Different monitoring periods, source types and coverage can limit direct comparison. Missing evidence stays missing; it is never scored as favourable, and nothing here is combined into an overall rank or safety verdict.