How many water violations are in Orange County?

Orange County has 85,938 total drinking water violations across 449 water systems, of which 2,258 are health-based violations. 98.0% of systems have at least one violation.

How many people get water from Orange County systems?

Water systems in Orange County serve approximately 409,417 people through 449 public water systems.

Has PFAS been detected in Orange County water?

Under EPA UCMR5, 10 of 23 tested systems in Orange County had at least one PFAS detection (43.5% of the UCMR5-tested subset - not of all 449 SDWIS systems).

What types of water sources supply Orange County?

Water systems in Orange County use GW (402 systems), SW (45 systems), Unknown (2 systems) as their primary water sources.

Are health-based violations serious?

Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 2.6% of Orange County's violations are health-based. Among counties with any SDWIS violations, this extract puts Orange County in the lower health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

Where does Orange County sit among U.S. counties for water-system population?

According to EPA SDWIS county population served used on /counties, Orange County ranks #176 of 3,254 counties by people served, and #8 of 58 counties in New York. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → New York

Orange County, New York

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet NY071 · Orange County 449 sys · 85,938 viol · #176/3254

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

VIOL-SEVERE 98.0% flagged
HEALTH-LOW 2.6% health
RANK-TOP #176/3254
PHOTO-FINISH ±0.0 pp
PFAS-MID 43.5% detect
SRC-GW GW lead 90%
SYS-LARGE 449 systems
BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Orange County ranks #176 of 3,254 counties by people served, and #8 of 58 counties in New York. See methodology · corpus placement.

Orange County standing, mid-flagged corpus third

Flagged-system rate 98.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 2.6% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 43.5% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #176 of 3,254 · #8 of 58 in New York.

Water Systems

System Name	Population	Violations	PFAS
Kiryas Joel	46,477	635	Detected
Middletown City	30,000	30	Clean
Newburgh City	29,000	127	Clean
New Windsor Consolidated WD	25,667	90	Detected
Newburgh Consolidated WD	22,282	1,884	Detected
Wallkill Consolidated WD	18,450	472	-
Legoland New York	16,000	2	-
Monroe Village	12,000	339	Detected
Woodbury Cons. W.D.	10,845	232	Detected
Cornwall-On-Hudson	9,700	961	Detected
Port Jervis City	9,000	83	Clean
U.s.m.a. - Lusk System	8,000	7	Clean
Washingtonville Village	7,700	150	Clean
Pine Bush Water District	7,600	126	Clean
Walden Village	7,007	87	Clean
Warwick Village	6,800	41	Clean
Goshen Village	5,600	38	Clean
Harriman Village	5,000	141	Detected
Montgomery Village	4,519	0	Detected
Highland Falls Village	4,101	31	Clean
U.s.m.a. - Stoney Lonesome Sys	4,000	19	Clean
Bear Mountain Water Supply	3,564	216	-
Chester Village	3,448	206	Detected
South Blooming Grove Village WD 1	3,400	386	-
Minisink Valley School Dist. Water Loop	3,400	4	Clean
Greenwood Lake Village	3,383	425	-
Maybrook Village	3,150	488	-
Camp Buckner-Natural Bridge	3,000	14	-
Boces	3,000	42	-
Florida Village	2,884	147	-
Highlands Water District	2,200	17	-
Lake Hill Farms Water District	1,868	5	-
Blue Lake	1,850	44	-
Westside Greenwood Lake W.D.	1,700	104	-
Pakanasink Elementary School	1,600	43	-
Valley Central High School	1,600	108	-
Montgomery W.D. #1	1,500	149	-
Valley Central Middle School	1,250	28	-
Federal Correctional Inst.	1,225	92	-
Wickham Village	1,147	172	-
Kings Estates	1,144	185	-
Tuxedo Park Village	1,100	26	-
Otisville Village	1,090	91	-
Indian Kill	1,000	8	-
Lake Stahahe WS	1,000	35	-
Sheri Torah Girls School (Glenwood)	1,000	27	-
Amazon Swf1	1,000	0	-
Lake Tiorati WS	999	75	-
Nys Thruway - Plattekill/Modena Area	999	165	-
Sanfordville Elementary School	945	6	-

Compare beyond New York

Mid-flagged peers for Orange County

Cross-state counties nearest Orange County on flagged-system share (98.0%) and cumulative violation count (85,938). 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

Compiled by PlainWater, Drinking Water Quality Editorial Process · May 15, 2026

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.