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 systemCITY OF GREENVILLETX1160004 · TX
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BasisEach column shows its latest public record. Sample years can differ between columns, so compare with care.

FieldCITY OF GREENVILLE
SystemCITY OF GREENVILLE
PlaceGreenville
Population served33,354
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 · referenceCITY OF GREENVILLE
Perfluorooctanesulfonic acid (PFOS)4.0 ng/L federal MCL (2024)7.3ng/LAbove a reference
Perfluorobutanoic acid (PFBA)No federal or state limit; shown for transparency8ng/LDetected, no limit
Perfluorohexanoic acid (PFHxA)400000.0 ng/L Michigan EGLE state MCL (strictest US state)3.7ng/LDetected, within reference
Perfluorohexanesulfonic acid (PFHxS)10.0 ng/L federal MCL (2024)3.7ng/LDetected, within reference
Perfluoropentanoic acid (PFPeA)No federal or state limit; shown for transparency3.4ng/LDetected, no limit
Lead (90th percentile)15 µg/L federal action level1.92µg/LDetected, within reference
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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.