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Counties → New York

Sullivan County, New York

SDWIS compliance plate

Sheet NY105 · Sullivan County 494 sys · 23,388 viol · #488/3254

VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-LARGE · BOOK-FULL

  • VIOL-SEVERE 98.6% flagged
  • HEALTH-LOW 2.3% health
  • RANK-TOP #488/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 50.0% detect
  • SRC-GW GW lead 98%
  • SYS-LARGE 494 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Delaware County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Sullivan County ranks #488 of 3,254 counties by people served, and #21 of 58 counties in New York. See methodology · corpus placement.

Sullivan County standing, mid-flagged corpus third

Flagged-system rate 98.6% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 2.3% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 50.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #488 of 3,254 · #21 of 58 in New York.

Flagged-rate neighbourhood around Sullivan County

Lowest/highest poles plus in-state counties nearest Sullivan County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Niagara · lowest Sullivan · this county Rensselaer · near Cortland · highest 38.1% 98.5% 98.6% 98.6% 98.6% 98.7% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Monticello Village 8,000 143 Detected
Fallsburg Who-Ls-Sf 7,850 16 Detected
Bethel Woods Center for the Arts 5,000 18 -
Liberty Village 3,900 61 Detected
Stevensville+rfl 3,250 41 -
Emerald Green Lake Louise Marie WC 2,400 454 -
Livingston Manor WD 1,500 47 Clean
Wurtsboro Village 1,400 29 -
Ten Mile River Scout Camps 1,300 31 -
Tri-Valley Central School 1,200 35 -
Villa Roma Country Club 1,150 72 -
The Shma Camps - Girls 1,100 48 -
The Shma Camps - Boys 1,000 40 -
Roscoe-Rockland WD 1,000 11 -
Mongaup Pond Campground 1,000 16 -
Adelaar WD 1,000 0 -
Woodbourne Correctional Facility 997 12 -
Uta Satmar Bungalow Colony 950 34 -
Woodridge Village 902 6 Clean
New Twin Lakes Village 900 26 -
Camp Zichron Zvi Dovid 895 20 -
Kiamesha Artesian Spring Water Company 879 40 -
Garnet Health - Catskills 872 14 -
Bloomingburg Water Transportation Co 872 2 -
Callicoon WD 850 66 -
Camp Bnos Skwere 850 86 -
River Valley Estates (Ex Foxcroft) MHP 800 102 -
Camp Chipinaw 800 33 -
Narrowsburg WD 800 95 -
Camp Romimu 800 22 -
Syda Foundation Anugraha 800 13 -
Jd Water Company Inc. 800 18 -
Sullivan West Lake Huntington 800 31 -
Camp Rayim 760 44 -
Machne Yakov Yosef 750 73 -
Camp Tel Yehudah 734 56 -
Swan Lake Campground 725 49 -
Sullivan County Human Service Complex 720 25 -
Camp Bnos 700 24 -
Camp Morris - Boys and Girls Day Camp 700 38 -
Kinnebrook Estates MHP 680 11 -
Camp Baiseinu 650 35 -
Camp Arugath Habosem 600 18 -
Syda Foundation Atma Nidhi 600 3 -
Camp Agudah 600 31 -
Tcfd - Harris 600 363 -
Yasgur Road Campground 600 14 -
Parkside Estates 600 6 -
Camp Belz 545 86 -
Camp Bais Yaakov 500 37 -

Compare beyond New York

Mid-flagged peers for Sullivan County

Cross-state counties nearest Sullivan County on flagged-system share (98.6%) and cumulative violation count (23,388). 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.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.