Public water system · MA1135007
ActiveLake Siog Park
At a glance
Lake Siog Park (PWSID MA1135007) is an active transient non-community water system in Hampden County, Massachusetts. It reports serving 100 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Lake Siog Park compare with other water systems in Hampden County?
By EPA's size categories, Lake Siog Park is a very small system (500 people or fewer). Hampden County has 115 active public water systems. Its population served is well below the county average of 3,821 people per system, and accounts for less than 0.1% of the 439,404 people reported by systems filed under the county. Across Massachusetts, the 1,636 active systems average 6,275 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Lake Siog Park is about 31% 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. Massachusetts has 859 active transient non-community water systems, 53% of the state's 1,636 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,354 Massachusetts systems (83%) list groundwater as their primary source.
Who owns and regulates Lake Siog Park?
EPA lists Lake Siog Park as owned by the federal government. The MA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 2 of the 115 active systems in Hampden County (1.7%) are also owned by the federal government.
Does Lake Siog Park 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 2018. The violations listed here began between May 1997 and April 2018. By type: 9 monitoring and reporting, 2 reporting and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 7 as archived, 4 as resolved and 1 as addressed. 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. 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. Addressed means the violation is not resolved or archived and is covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2018-04-17 | ReportingReport Startup Procedures Cert Form (RTCR) · code 4C | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-04-16 | ReportingReport Startup Procedures Cert Form (RTCR) · code 4C | Revised Total Coliform Rulecode 8000 | No | Addressed |
| 2017-04-16 | Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2D | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2002-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2001-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 2001-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2000-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2000-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1999-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
Lake Siog Park: frequently asked questions
Who runs Lake Siog Park?
Lake Siog Park (PWSID MA1135007) is a transient non-community water system owned by the federal government. It is regulated by the MA state drinking water program.
How many people does Lake Siog Park serve?
Lake Siog Park reports serving 100 people through 1 service connection in Hampden County, Massachusetts.
Where does Lake Siog Park 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 Lake Siog Park 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 2018. 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 Lake Siog Park'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 2018. For current results, consult EPA ECHO, or the MA state drinking water program.
Where can I find Lake Siog Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lake Siog Park 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 Hampden County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Springfield Water and Sewer Commission | Hampden | 169,170 | Community | Surface water |
| Chicopee Water Dept (MWRA) | Hampden | 55,560 | Community | Purchased surface water |
| Westfield Dpwwater Division | Hampden | 41,094 | Community | Surface water |
| Holyoke Water Works | Hampden | 37,838 | Community | Surface water |
| West Springfield Dpw Water Division | Hampden | 28,835 | Community | Groundwater |
| Agawam Water Department | Hampden | 28,692 | Community | Purchased surface water |
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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, “Lake Siog Park, PWSID MA1135007, Massachusetts”, https://aquacensus.com/water-systems/massachusetts/lake-siog-park-ma1135007 (data as of October 1, 2026).