Public water system · OR4191970
ActiveYamhill Co Pks-Ed Grenfell Pk
At a glance
Yamhill Co Pks-Ed Grenfell Pk (PWSID OR4191970) is an active transient non-community water system in Yamhill County, Oregon. It reports serving 30 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in May 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
30
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Yamhill Co Pks-Ed Grenfell Pk compare with other water systems in Yamhill County?
By EPA's size categories, Yamhill Co Pks-Ed Grenfell Pk is a very small system (500 people or fewer). Yamhill County has 91 active public water systems. Its population served is well below the county average of 998 people per system, and accounts for less than 0.1% of the 90,787 people reported by systems filed under the county. Across Oregon, the 2,536 active systems average 1,587 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Yamhill Co Pks-Ed Grenfell Pk is well 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. Oregon has 1,250 active transient non-community water systems, 49% of the state's 2,536 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,175 Oregon systems (86%) list groundwater as their primary source.
Who owns and regulates Yamhill Co Pks-Ed Grenfell Pk?
EPA lists Yamhill Co Pks-Ed Grenfell Pk as owned by a local government. The OR state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 17 of the 91 active systems in Yamhill County (19%) are also owned by a local government.
Does Yamhill Co Pks-Ed Grenfell Pk have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in May 2022. The violations listed here began between January 2009 and May 2022. By type: 6 monitoring and reporting, 5 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (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 |
|---|---|---|---|---|
| 2022-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2021-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2016-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2013-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-11-20 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2010-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-09-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2009-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | 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.
Yamhill Co Pks-Ed Grenfell Pk: frequently asked questions
Who runs Yamhill Co Pks-Ed Grenfell Pk?
Yamhill Co Pks-Ed Grenfell Pk (PWSID OR4191970) is a transient non-community water system owned by a local government. It is regulated by the OR state drinking water program.
How many people does Yamhill Co Pks-Ed Grenfell Pk serve?
Yamhill Co Pks-Ed Grenfell Pk reports serving 30 people through 1 service connection in Yamhill County, Oregon.
Where does Yamhill Co Pks-Ed Grenfell Pk 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 Yamhill Co Pks-Ed Grenfell Pk have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in May 2022. 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 Yamhill Co Pks-Ed Grenfell Pk'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, none is health-based, and the most recent began in May 2022. For current results, consult EPA ECHO, or the OR state drinking water program.
Where can I find Yamhill Co Pks-Ed Grenfell Pk's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Yamhill Co Pks-Ed Grenfell Pk 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 Yamhill County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mcminnville Water & Light | Yamhill | 34,515 | Community | Surface water |
| Newberg, City of | Yamhill | 25,138 | Community | Groundwater |
| Sheridan, City of | Yamhill | 6,494 | Community | Surface water |
| Lafayette, City of | Yamhill | 4,423 | Community | Purchased surface water |
| Dundee, City of | Yamhill | 2,960 | Community | Groundwater |
| Dayton, City of | Yamhill | 2,535 | 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, “Yamhill Co Pks-Ed Grenfell Pk, PWSID OR4191970, Oregon”, https://aquacensus.com/water-systems/oregon/yamhill-co-pks-ed-grenfell-pk-or4191970 (data as of October 1, 2026).