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ZIG ZAG WATER CO-OP

PWS ID: OR4101241 · WELCHES, Oregon 97067

ZIG ZAG WATER CO-OP serves 60 people in WELCHES, Oregon using Groundwater water sources. It has 147 recorded EPA violations, including 18 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ZIG ZAG WATER CO-OP

ZIG ZAG WATER CO-OP is a private-owned community water system that delivers drinking water to 60 residents in WELCHES, Oregon (Clackamas County) through 46 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 147 total violations for this system , of which 18 (12%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 125 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

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. ZIG ZAG WATER CO-OP's 147 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
60
Total Violations
147
Health-Based Violations
18
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
46
County
Clackamas
School/Daycare
No
MCL Violations
12
Monitoring Violations
125
Treatment Tech Violations
6

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 19 2014
Coliform (TCR) MCL 12 2003
Nitrate MR 10 2021
Combined Uranium MR 9 2014
Combined Radium (-226 and -228) MR 8 2014
Lead and Copper Rule TT 6 2000
TTHM MR 5 2022
Total Haloacetic Acids (HAA5) MR 5 2022
Lead and Copper Rule MR 4 2013
COLIPHAGE MR 3 2013
Endrin MR 2 1996
HEXACHLOROBENZENE MR 2 1996
Methoxychlor MR 2 1996
Total Polychlorinated Biphenyls (PCB) MR 2 1996
Toxaphene MR 2 1996
1,1-Dichloroethylene MR 2 1996
cis-1,2-Dichloroethylene MR 2 1996
Ethylbenzene MR 2 1996
CHLOROBENZENE MR 2 1996
p-Dichlorobenzene MR 2 1996
Styrene MR 2 1996
trans-1,2-Dichloroethylene MR 2 1996
Trichloroethylene MR 2 1996
Consumer Confidence Rule Other 2 2023
BHC-GAMMA MR 2 1996
Vinyl chloride MR 2 1996
DICHLOROMETHANE MR 2 1996
Heptachlor MR 2 1996
1,2-Dichloropropane MR 2 1996
Tetrachloroethylene MR 2 1996

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 ZIG ZAG WATER CO-OP.

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 OR4101241 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
2023 Consumer Confidence Rule Other 2 SDWIS / OR4101241 / 7000
2022 TTHM MR 5 SDWIS / OR4101241 / 2950
2022 Total Haloacetic Acids (HAA5) MR 5 SDWIS / OR4101241 / 2456
2021 Nitrate MR 10 SDWIS / OR4101241 / 1040
2014 Coliform (TCR) MR 19 SDWIS / OR4101241 / 3100
2014 Combined Uranium MR 9 SDWIS / OR4101241 / 4006
2014 Combined Radium (-226 and -228) MR 8 SDWIS / OR4101241 / 4010
2014 E. COLI MR 1 SDWIS / OR4101241 / 3014
2014 Public Notice Other 1 SDWIS / OR4101241 / 7500
2013 Lead and Copper Rule MR 4 SDWIS / OR4101241 / 5000
2013 COLIPHAGE MR 3 SDWIS / OR4101241 / 3028
2003 Coliform (TCR) MCL 12 SDWIS / OR4101241 / 3100
2002 Arsenic MR 1 SDWIS / OR4101241 / 1005
2000 Lead and Copper Rule TT 6 SDWIS / OR4101241 / 5000
1996 Endrin MR 2 SDWIS / OR4101241 / 2005

How ZIG ZAG WATER CO-OP Compares

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

Metric ZIG ZAG WATER CO-OP Oregon avg Federal benchmark
Total violations 147 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 18 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 60 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 ZIG ZAG WATER CO-OP water safe to drink? ▼
ZIG ZAG WATER CO-OP (PWS ID: OR4101241) has 147 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 60 people using Groundwater sources.
How many people does ZIG ZAG WATER CO-OP serve? ▼
ZIG ZAG WATER CO-OP serves 60 people in WELCHES, Oregon. It is a Private-owned system using Groundwater water sources with 46 service connections.
What type of violations does ZIG ZAG WATER CO-OP have? ▼
ZIG ZAG WATER CO-OP has 147 total violations: 18 health-based violations (MCL exceedances or treatment failures), 125 monitoring/reporting violations, and 6 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ZIG ZAG WATER CO-OP water? ▼
No PFAS testing data is available for ZIG ZAG WATER CO-OP under the EPA's UCMR5 monitoring program.
What water source does ZIG ZAG WATER CO-OP use? ▼
ZIG ZAG WATER CO-OP uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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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