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Community Water System · PWS NY5521949

Streamside Estates

Yorktown Heights, New York 10598 - drinking water served from surface water sources to 67 people, tracked in EPA SDWIS and UCMR5.

67
People served
366
EPA violations
13
Health-based
Untested
UCMR5 result

The verdict

EPA records 366 drinking-water violations at Streamside Estates, 4% of them health-based - above the New York per-system average.

366
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
67
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Streamside Estates

Streamside Estates is a private-owned community water system that delivers drinking water to 67 residents in Yorktown Heights, New York (Ulster County) through 21 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 366 total violations for this system , of which 13 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 309 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 28 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across New York, EPA tracks 8,098 public water systems serving 19,294,951 people, with 552,003 cumulative violations and 26,817 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 68.2 violations. Statewide, 98 of 332 UCMR5-tested systems have reported PFAS detections (29.5%).

Streamside Estates's 366 violations sit above the New York average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
67
Total Violations
366
Health-Based Violations
13
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
21
County
Ulster
School/Daycare
No
MCL Violations
1
Monitoring Violations
309
Treatment Tech Violations
12

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 28 2015
Total Haloacetic Acids (HAA5) MR 12 2024
TTHM MR 12 2024
Interim Enhanced Surface Water Treatment Rule TT 12 2011
Consumer Confidence Rule Other 8 2005
Endrin MR 7 2002
BHC-GAMMA MR 7 2002
Toxaphene MR 7 2002
Total Polychlorinated Biphenyls (PCB) MR 7 2002
Chlordane MR 7 2002
Pentachlorophenol MR 7 2002
ETHYLENE DIBROMIDE MR 7 2002
2,4,5-TP MR 7 2002
2,4-D MR 7 2002
Heptachlor epoxide MR 7 2002
LASSO MR 7 2002
Atrazine MR 7 2002
Carbofuran MR 7 2002
Methoxychlor MR 7 2002
Aldicarb sulfone MR 7 2002
Aldicarb MR 7 2002
Heptachlor MR 7 2002
Nitrate MR 7 2004
Aldicarb sulfoxide MR 7 2002
Di(2-ethylhexyl) adipate MR 6 2002
Di(2-ethylhexyl) phthalate MR 6 2002
Benzo(a)pyrene MR 6 2002
Dalapon MR 6 2002
OXAMYL MR 6 2002
Picloram MR 6 2002

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Streamside Estates.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NY5521949 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New York Drinking Water Authority

New York State Department of Health, Public Water Systems is the primacy agency that licenses and inspects Streamside Estates under EPA-delegated authority.

Open NY regulator portal

Source: New York State Department of Health, Public Water Systems

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 Total Haloacetic Acids (HAA5) MR 12 SDWIS / NY5521949 / 2456
2024 TTHM MR 12 SDWIS / NY5521949 / 2950
2015 Coliform (TCR) MR 28 SDWIS / NY5521949 / 3100
2011 Interim Enhanced Surface Water Treatment Rule TT 12 SDWIS / NY5521949 / 0300
2009 Lead and Copper Rule MR 3 SDWIS / NY5521949 / 5000
2008 Combined Radium (-226 and -228) MR 3 SDWIS / NY5521949 / 4010
2008 Radium-226 MR 3 SDWIS / NY5521949 / 4020
2008 Combined Uranium MR 3 SDWIS / NY5521949 / 4006
2008 Radium-228 MR 3 SDWIS / NY5521949 / 4030
2005 Consumer Confidence Rule Other 8 SDWIS / NY5521949 / 7000
2004 Nitrate MR 7 SDWIS / NY5521949 / 1040
2002 Endrin MR 7 SDWIS / NY5521949 / 2005
2002 BHC-GAMMA MR 7 SDWIS / NY5521949 / 2010
2002 Toxaphene MR 7 SDWIS / NY5521949 / 2020
2002 Total Polychlorinated Biphenyls (PCB) MR 7 SDWIS / NY5521949 / 2383

How Streamside Estates Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Streamside Estates New York avg Federal benchmark
Total violations 366 68.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 13 3.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 29.5% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 67 2,383 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 8,098 regulated public water systems in New York.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Streamside Estates water safe to drink? ▼
Streamside Estates (PWS ID: NY5521949) has 366 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 67 people using Surface Water sources.
How many people does Streamside Estates serve? ▼
Streamside Estates serves 67 people in Yorktown Heights, New York. It is a Private-owned system using Surface Water water sources with 21 service connections.
What type of violations does Streamside Estates have? ▼
Streamside Estates has 366 total violations: 13 health-based violations (MCL exceedances or treatment failures), 309 monitoring/reporting violations, and 12 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Streamside Estates water? ▼
No PFAS testing data is available for Streamside Estates under the EPA's UCMR5 monitoring program.
What water source does Streamside Estates use? ▼
Streamside Estates uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - 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 Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from 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.