County Water Quality Report

Westchester County, New York

6 public water systems serving 608,683 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
D
63/100
Utilities rated 6
Population served 608,683

Top water quality concerns in Westchester County

  • Haloacetic acids (HAA9) significantly above health guidelinein 6 of 6 utilities
  • Haloacetic acids (HAA5) significantly above health guidelinein 6 of 6 utilities
  • Trichloroacetic acid significantly above health guidelinein 3 of 6 utilities
  • Total trihalomethanes (TTHMs) significantly above health guidelinein 3 of 6 utilities
  • PFAS contaminationin 1 of 6 utilities

All utilities in Westchester County

Click any utility for full grade card, contaminant data, and treatment plant contact info.

C
67/100

YONKERS CITY

YONKERS (C) · 211,569 residents

Top concern: Haloacetic acids (HAA9) significantly above health guideline

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C
65/100

MOUNT VERNON WATER DEPARTMENT

MOUNT VERNON (C) · 73,893 residents

Top concern: Haloacetic acids (HAA9) significantly above health guideline

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C
65/100

VEOLIA WATER NEW YORK, INC. RD-1

TUCKAHOE (V) · 146,732 residents

Top concern: Haloacetic acids (HAA9) significantly above health guideline

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D
63/100

VEOLIA WATER NEW YORK, INC. RD-2

PORT CHESTER (V) · 57,301 residents

Top concern: Haloacetic acids (HAA9) significantly above health guideline

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D
63/100

WHITE PLAINS CITY

WHITE PLAINS (C) · 59,559 residents

Top concern: Haloacetic acids (HAA9) significantly above health guideline

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D
57/100

WESTCHESTER JOINT WATER WORKS

MAMARONECK · 59,629 residents

Top concern: PFAS contamination

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