Public water system · NY0218431
ActiveHoughton-Letchworth Koa
At a glance
Houghton-Letchworth Koa (PWSID NY0218431) is an active transient non-community water system in Allegany County, New York. It reports serving 82 people through 15 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
82
Service connections
15
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Houghton-Letchworth Koa compare with other water systems in Allegany County?
By EPA's size categories, Houghton-Letchworth Koa is a very small system (500 people or fewer). Allegany County has 80 active public water systems. Its population served is well below the county average of 446 people per system, and accounts for 0.2% of the 35,638 people reported by systems filed under the county. Across New York, the 8,167 active systems average 2,374 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Houghton-Letchworth Koa is about 43% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. New York has 5,182 active transient non-community water systems, 63% of the state's 8,167 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 7,096 New York systems (87%) list groundwater as their primary source.
Who owns and regulates Houghton-Letchworth Koa?
EPA lists Houghton-Letchworth Koa as privately owned. The NY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 54 of the 80 active systems in Allegany County (68%) are also privately owned.
Does Houghton-Letchworth Koa have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2014. The violations listed here began between April 1993 and April 2014. By type: 6 public notice, recordkeeping or other, 5 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 10 as resolved and 2 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2014-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1998-07-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1998-04-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1998-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1997-07-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1996-07-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1993-04-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1993-04-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Houghton-Letchworth Koa: frequently asked questions
Who runs Houghton-Letchworth Koa?
Houghton-Letchworth Koa (PWSID NY0218431) is a transient non-community water system privately owned. It is regulated by the NY state drinking water program.
How many people does Houghton-Letchworth Koa serve?
Houghton-Letchworth Koa reports serving 82 people through 15 service connections in Allegany County, New York.
Where does Houghton-Letchworth Koa get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Houghton-Letchworth Koa have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2014. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Houghton-Letchworth Koa's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2014. For current results, consult EPA ECHO, or the NY state drinking water program.
Where can I find Houghton-Letchworth Koa's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Houghton-Letchworth Koa is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Allegany County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Wellsville Village Public Water | Allegany | 5,700 | Community | Surface water |
| Alfred State College | Allegany | 3,600 | Community | Purchased groundwater |
| Alfred University | Allegany | 2,800 | Community | Groundwater |
| Belmont Village Public Water | Allegany | 2,400 | Community | Groundwater under influence of surface water |
| Houghton Water District | Allegany | 2,000 | Community | Groundwater |
| Cuba Village Public Water | Allegany | 1,800 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Houghton-Letchworth Koa, PWSID NY0218431, New York”, https://aquacensus.com/water-systems/new-york/houghton-letchworth-koa-ny0218431 (data as of October 1, 2026).