Side-by-side water intelligence

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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 systemSAN LEON MUDTX0840063 · TX
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BasisEach column shows its latest public record. Sample years can differ between columns, so compare with care.

FieldSAN LEON MUD
SystemSAN LEON MUD
PlaceSan Leon Mud
Population served11,622
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 · referenceSAN LEON MUD
Lithium10.0 µg/L EPA health reference level (screening, not a legal limit)17.5µg/LAbove a reference
Perfluorobutanoic acid (PFBA)No federal or state limit; shown for transparency30.8ng/LDetected, no limit
Perfluorobutanesulfonic acid (PFBS)2000.0 ng/L EPA health advisory (screening, not a legal limit)3.4ng/LDetected, within reference
Perfluorohexanoic acid (PFHxA)400000.0 ng/L Michigan EGLE state MCL (strictest US state)4.4ng/LDetected, within reference
Perfluoropentanoic acid (PFPeA)No federal or state limit; shown for transparency74.9ng/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.