PlainWater
States → New York

Non-Transient Non-Community Water System · PWS NY3530214

Tectonic Engineering WS

Mountainville, New York 10953 - drinking water served from groundwater sources to 75 people, tracked in EPA SDWIS and UCMR5.

75
People served
200
EPA violations
3
Health-based
Untested
UCMR5 result

The verdict

EPA records 200 drinking-water violations at Tectonic Engineering WS, 2% of them health-based - above the New York per-system average.

200
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
75
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Tectonic Engineering WS

Tectonic Engineering WS is a private-owned non-transient non-community water system that delivers drinking water to 75 residents in Mountainville, New York (Orange County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 200 total violations for this system , of which 3 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 180 monitoring and reporting violations are on file. The most recent violation on record dates to 2009.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 8 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%).

Tectonic Engineering WS's 200 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
75
Total Violations
200
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Orange
School/Daycare
No
MCL Violations
0
Monitoring Violations
180
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 8 2009
Coliform (TCR) MR 8 2008
Nitrate MR 4 2008
Arsenic MR 4 2006
CYANIDE MR 4 2006
Nickel MR 4 2006
Antimony, Total MR 4 2006
Beryllium, Total MR 4 2006
Thallium, Total MR 4 2006
Selenium MR 4 2006
Endrin MR 4 2006
BHC-GAMMA MR 4 2006
Methoxychlor MR 4 2006
Toxaphene MR 4 2006
OXAMYL MR 4 2006
Simazine MR 4 2006
Di(2-ethylhexyl) phthalate MR 4 2006
Dinoseb MR 4 2006
Aldicarb sulfoxide MR 4 2006
Carbofuran MR 4 2006
Aldicarb MR 4 2006
Atrazine MR 4 2006
LASSO MR 4 2006
Heptachlor MR 4 2006
Heptachlor epoxide MR 4 2006
2,4-D MR 4 2006
2,4,5-TP MR 4 2006
HEXACHLOROBENZENE MR 4 2006
Benzo(a)pyrene MR 4 2006
ETHYLENE DIBROMIDE MR 4 2006

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 Tectonic Engineering WS.

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 NY3530214 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 Tectonic Engineering WS 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
2009 Lead and Copper Rule MR 8 SDWIS / NY3530214 / 5000
2008 Coliform (TCR) MR 8 SDWIS / NY3530214 / 3100
2008 Nitrate MR 4 SDWIS / NY3530214 / 1040
2008 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 3 SDWIS / NY3530214 / 0400
2006 Arsenic MR 4 SDWIS / NY3530214 / 1005
2006 CYANIDE MR 4 SDWIS / NY3530214 / 1024
2006 Nickel MR 4 SDWIS / NY3530214 / 1036
2006 Antimony, Total MR 4 SDWIS / NY3530214 / 1074
2006 Beryllium, Total MR 4 SDWIS / NY3530214 / 1075
2006 Thallium, Total MR 4 SDWIS / NY3530214 / 1085
2006 Selenium MR 4 SDWIS / NY3530214 / 1045
2006 Endrin MR 4 SDWIS / NY3530214 / 2005
2006 BHC-GAMMA MR 4 SDWIS / NY3530214 / 2010
2006 Methoxychlor MR 4 SDWIS / NY3530214 / 2015
2006 Toxaphene MR 4 SDWIS / NY3530214 / 2020

How Tectonic Engineering WS Compares

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

Metric Tectonic Engineering WS New York avg Federal benchmark
Total violations 200 68.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 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 75 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 Tectonic Engineering WS water safe to drink? ▼
Tectonic Engineering WS (PWS ID: NY3530214) has 200 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 75 people using Groundwater sources.
How many people does Tectonic Engineering WS serve? ▼
Tectonic Engineering WS serves 75 people in Mountainville, New York. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Tectonic Engineering WS have? ▼
Tectonic Engineering WS has 200 total violations: 3 health-based violations (MCL exceedances or treatment failures), 180 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Tectonic Engineering WS water? ▼
No PFAS testing data is available for Tectonic Engineering WS under the EPA's UCMR5 monitoring program.
What water source does Tectonic Engineering WS use? ▼
Tectonic Engineering WS uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.