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 systemIOWA CITY WATER DEPARTMENTIA5225079 · IA
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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.

FieldIOWA CITY WATER DEPARTMENT
SystemIOWA CITY WATER DEPARTMENT
PlaceIowa City
Population served68,753
Source typeSurface Water
Record updated2026-09-16
Findings on record34
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 · referenceIOWA CITY WATER DEPARTMENT
Lithium10.0 µg/L EPA health reference level (screening, not a legal limit)47µg/LAbove a reference
Lead (90th percentile)15 µg/L federal action level4µg/LDetected, within reference
Total trihalomethanes (TTHM)80 ppb federal MCL47ppbDetected, within reference
Haloacetic acids (HAA5)60 ppb federal MCL10ppbDetected, within reference
Water hardnessAesthetic · no federal health limit6.5gpgAesthetic · no health limit
Comparison boundary

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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.