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GRONER ELEMENTARY SD 1J

PWS ID: OR4190607 · HILLSBORO, Oregon 97124

GRONER ELEMENTARY SD 1J serves 250 people in HILLSBORO, Oregon using Groundwater water sources. It has 150 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: GRONER ELEMENTARY SD 1J

GRONER ELEMENTARY SD 1J is a local-owned non-transient non-community water system that delivers drinking water to 250 residents in HILLSBORO, Oregon (Washington County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 150 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 141 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 19 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 Oregon, EPA tracks 2,518 public water systems serving 4,005,242 people, with 206,659 cumulative violations and 20,339 health-based violations on record. About 99% of systems in the state carry at least one violation, and state-wide the average per system is 82.1 violations. GRONER ELEMENTARY SD 1J's 150 violations sit above the Oregon average. Statewide, 30 of 125 UCMR5-tested systems have reported PFAS detections (24%). 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
250
Total Violations
150
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Washington
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
141
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 19 2013
Nitrate MR 5 2010
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2005
Dinoseb MR 2 2005
Endothall MR 2 2005
Endrin MR 2 2005
Heptachlor epoxide MR 2 2005
Heptachlor MR 2 2005
HEXACHLOROBENZENE MR 2 2005
Pentachlorophenol MR 2 2005
Total Polychlorinated Biphenyls (PCB) MR 2 2005
Toxaphene MR 2 2005
OXAMYL MR 2 2005
1,1-Dichloroethylene MR 2 2005
1,1,1-Trichloroethane MR 2 2005
1,1,2-Trichloroethane MR 2 2005
1,2-Dichloroethane MR 2 2005
1,2-Dichloropropane MR 2 2005
1,2,4-Trichlorobenzene MR 2 2005
Benzene MR 2 2005
cis-1,2-Dichloroethylene MR 2 2005
DICHLOROMETHANE MR 2 2005
Ethylbenzene MR 2 2005
o-Dichlorobenzene MR 2 2005
p-Dichlorobenzene MR 2 2005
Styrene MR 2 2005
trans-1,2-Dichloroethylene MR 2 2005
Vinyl chloride MR 2 2005
Xylenes, Total MR 2 2005
BHC-GAMMA MR 2 2005

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 GRONER ELEMENTARY SD 1J.

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 OR4190607 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Oregon Drinking Water Authority

Oregon's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find OR regulator via EPA SDWIS

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
2016 Revised Total Coliform Rule MON 2 SDWIS / OR4190607 / 8000
2013 Coliform (TCR) MR 19 SDWIS / OR4190607 / 3100
2012 COLIPHAGE MR 2 SDWIS / OR4190607 / 3028
2010 Nitrate MR 5 SDWIS / OR4190607 / 1040
2005 1,2-DIBROMO-3-CHLOROPROPANE MR 2 SDWIS / OR4190607 / 2931
2005 Dinoseb MR 2 SDWIS / OR4190607 / 2041
2005 Endothall MR 2 SDWIS / OR4190607 / 2033
2005 Endrin MR 2 SDWIS / OR4190607 / 2005
2005 Heptachlor epoxide MR 2 SDWIS / OR4190607 / 2067
2005 Heptachlor MR 2 SDWIS / OR4190607 / 2065
2005 HEXACHLOROBENZENE MR 2 SDWIS / OR4190607 / 2274
2005 Pentachlorophenol MR 2 SDWIS / OR4190607 / 2326
2005 Total Polychlorinated Biphenyls (PCB) MR 2 SDWIS / OR4190607 / 2383
2005 Toxaphene MR 2 SDWIS / OR4190607 / 2020
2005 OXAMYL MR 2 SDWIS / OR4190607 / 2036

How GRONER ELEMENTARY SD 1J Compares

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

Metric GRONER ELEMENTARY SD 1J Oregon avg Federal benchmark
Total violations 150 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 8.1 Indicates a contaminant exceeded a federal MCL
PFAS detection None 24% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 250 1,591 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,518 regulated public water systems in Oregon.

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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is GRONER ELEMENTARY SD 1J water safe to drink? ▼
GRONER ELEMENTARY SD 1J (PWS ID: OR4190607) has 150 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 250 people using Groundwater sources.
How many people does GRONER ELEMENTARY SD 1J serve? ▼
GRONER ELEMENTARY SD 1J serves 250 people in HILLSBORO, Oregon. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does GRONER ELEMENTARY SD 1J have? ▼
GRONER ELEMENTARY SD 1J has 150 total violations: 0 health-based violations (MCL exceedances or treatment failures), 141 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in GRONER ELEMENTARY SD 1J water? ▼
No PFAS testing data is available for GRONER ELEMENTARY SD 1J under the EPA's UCMR5 monitoring program.
What water source does GRONER ELEMENTARY SD 1J use? ▼
GRONER ELEMENTARY SD 1J 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.

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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.

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