County profile · EPA SDWIS + UCMR5
Hamilton County, New York
88 SDWIS-listed public water systems serve 14,618 people in Hamilton County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.
- 88
- SDWIS water systems Larger third of counties
- 3,822
- Total violations Upper third of counties
- 96.6%
- SDWIS systems w/ a violation Middle third of counties
- -
- UCMR5 PFAS (none tested) No UCMR5 tests
SDWIS compliance plate
Sheet NY041 · Hamilton County 88 sys · 3,822 viol · #2039/3254
VIOL-SEVERE · HEALTH-LOW · RANK-LOWER · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-MID · BOOK-MOST
- VIOL-SEVERE 96.6% flagged
- HEALTH-LOW 9.7% health
- RANK-LOWER #2039/3254
- PHOTO-FINISH ±0.2 pp
- PFAS-NONE No UCMR5 set
- SRC-GW GW lead 97%
- SYS-MID 88 systems
- BOOK-MOST 6/7 fields
Nearest flagged-rate peer: Saratoga County (+ 0.2 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Hamilton County ranks #2,039 of 3,254 counties by people served, and #57 of 58 counties in New York. See methodology · corpus placement.
Hamilton County standing, mid-flagged corpus third
Flagged-system rate 96.6% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 9.7% is health-based share at or below the lower third (≤ 10.3%) . No UCMR5 tests in this extract for Hamilton County . Population served ranks #2,039 of 3,254 · #57 of 58 in New York.
Flagged-rate neighbourhood around Hamilton County
Lowest/highest poles plus in-state counties nearest Hamilton County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
Compare beyond New York
Mid-flagged peers for Hamilton County
Cross-state counties nearest Hamilton County on flagged-system share (96.6%) and cumulative violation count (3,822). In-state neighbours stay on the compliance plate above.
Similar flagged-system rate
Nearest cross-state counties by % of SDWIS systems with at least one violation on record.
Similar violation load
Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).
Read our methodology · Check your water system - how this data is sourced, computed, and verified.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.