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CAROLINA WATER SYSTEM

PWS ID: OR4100733 · SALEM, Oregon 97305

CAROLINA WATER SYSTEM serves 300 people in SALEM, Oregon using Groundwater water sources. It has 198 recorded EPA violations, including 2 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: CAROLINA WATER SYSTEM

CAROLINA WATER SYSTEM is a private-owned community water system that delivers drinking water to 300 residents in SALEM, Oregon (Marion County) through 90 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 198 total violations for this system , of which 2 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 173 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 20 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. CAROLINA WATER SYSTEM's 198 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
300
Total Violations
198
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
90
County
Marion
School/Daycare
No
MCL Violations
0
Monitoring Violations
173
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 20 2015
Consumer Confidence Rule Other 19 2025
Nitrate MR 12 2024
Revised Total Coliform Rule MON 10 2025
Lead and Copper Rule MR 9 2022
Combined Radium (-226 and -228) MR 7 2013
E. COLI MR 4 2023
Carbon tetrachloride MR 2 1999
cis-1,2-Dichloroethylene MR 2 1999
DICHLOROMETHANE MR 2 1999
o-Dichlorobenzene MR 2 1999
Tetrachloroethylene MR 2 1999
trans-1,2-Dichloroethylene MR 2 1999
Vinyl chloride MR 2 1999
2,4-D MR 2 1999
2,4,5-TP MR 2 1999
Di(2-ethylhexyl) adipate MR 2 1999
LASSO MR 2 1999
Benzo(a)pyrene MR 2 1999
Chlordane MR 2 1999
1,2-DIBROMO-3-CHLOROPROPANE MR 2 1999
Dinoseb MR 2 1999
Endrin MR 2 1999
Glyphosate MR 2 1999
Heptachlor MR 2 1999
Hexachlorocyclopentadiene MR 2 1999
Methoxychlor MR 2 1999
Picloram MR 2 1999
Simazine MR 2 1999
OXAMYL MR 2 1999

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 CAROLINA WATER SYSTEM.

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 OR4100733 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
2025 Consumer Confidence Rule Other 19 SDWIS / OR4100733 / 7000
2025 Revised Total Coliform Rule MON 10 SDWIS / OR4100733 / 8000
2025 Public Notice Other 1 SDWIS / OR4100733 / 7500
2024 Nitrate MR 12 SDWIS / OR4100733 / 1040
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / OR4100733 / 5200
2023 E. COLI MR 4 SDWIS / OR4100733 / 3014
2022 Lead and Copper Rule MR 9 SDWIS / OR4100733 / 5000
2015 Coliform (TCR) MR 20 SDWIS / OR4100733 / 3100
2013 Combined Radium (-226 and -228) MR 7 SDWIS / OR4100733 / 4010
1999 Carbon tetrachloride MR 2 SDWIS / OR4100733 / 2982
1999 cis-1,2-Dichloroethylene MR 2 SDWIS / OR4100733 / 2380
1999 DICHLOROMETHANE MR 2 SDWIS / OR4100733 / 2964
1999 o-Dichlorobenzene MR 2 SDWIS / OR4100733 / 2968
1999 Tetrachloroethylene MR 2 SDWIS / OR4100733 / 2987
1999 trans-1,2-Dichloroethylene MR 2 SDWIS / OR4100733 / 2979

How CAROLINA WATER SYSTEM Compares

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

Metric CAROLINA WATER SYSTEM Oregon avg Federal benchmark
Total violations 198 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 2 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 300 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 CAROLINA WATER SYSTEM water safe to drink? ▼
CAROLINA WATER SYSTEM (PWS ID: OR4100733) has 198 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 300 people using Groundwater sources.
How many people does CAROLINA WATER SYSTEM serve? ▼
CAROLINA WATER SYSTEM serves 300 people in SALEM, Oregon. It is a Private-owned system using Groundwater water sources with 90 service connections.
What type of violations does CAROLINA WATER SYSTEM have? ▼
CAROLINA WATER SYSTEM has 198 total violations: 2 health-based violations (MCL exceedances or treatment failures), 173 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CAROLINA WATER SYSTEM water? ▼
No PFAS testing data is available for CAROLINA WATER SYSTEM under the EPA's UCMR5 monitoring program.
What water source does CAROLINA WATER SYSTEM use? ▼
CAROLINA WATER SYSTEM 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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