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LINDA COUNTY WATER DISTRICT

PWS ID: CA5810002 · MARYSVILLE, California 95901

LINDA COUNTY WATER DISTRICT serves 21,654 people in MARYSVILLE, California using Groundwater water sources. It has 25 recorded EPA violations, including 13 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LINDA COUNTY WATER DISTRICT

LINDA COUNTY WATER DISTRICT is a local-owned community water system that delivers drinking water to 21,654 residents in MARYSVILLE, California (Yuba County) through 5,464 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 25 total violations for this system , of which 13 (52%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 10 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 13 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across California, EPA tracks 7,249 public water systems serving 42,404,883 people, with 153,308 cumulative violations and 63,983 health-based violations on record. About 89% of systems in the state carry at least one violation, and state-wide the average per system is 21.1 violations. LINDA COUNTY WATER DISTRICT's 25 violations sit above the California average. Statewide, 447 of 694 UCMR5-tested systems have reported PFAS detections (64.4%). 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
21,654
Total Violations
25
Health-Based Violations
13
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
5,464
County
Yuba
School/Daycare
No
MCL Violations
13
Monitoring Violations
10
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 13 2013
Nitrate MR 4 2019
Lead and Copper Rule MR 2 2014
Groundwater Rule Other 2 2017
Revised Total Coliform Rule MON 2 2020
COLIPHAGE MR 2 2019

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
6:2 FTS 6/27/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 6/27/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 6/27/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 6/27/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 6/27/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 6/27/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 6/27/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 6/27/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 6/27/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 6/27/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 6/27/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 6/27/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 6/27/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 6/27/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 5/17/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/17/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/17/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/17/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 5/17/2023 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 5/17/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFBS 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/17/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/17/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/17/2023 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/17/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/17/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/17/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 5/17/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFOA 5/17/2023 <0.004 µg/L 0.004 µg/L Not Detected

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 LINDA COUNTY WATER DISTRICT.

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 CA5810002 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

California Drinking Water Authority

California State Water Resources Control Board — Division of Drinking Water is the primacy agency that licenses and inspects LINDA COUNTY WATER DISTRICT under EPA-delegated authority.

Open CA regulator portal

Source: California State Water Resources Control Board — Division of Drinking Water

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
2020 Revised Total Coliform Rule MON 2 SDWIS / CA5810002 / 8000
2019 Nitrate MR 4 SDWIS / CA5810002 / 1040
2019 COLIPHAGE MR 2 SDWIS / CA5810002 / 3028
2017 Groundwater Rule Other 2 SDWIS / CA5810002 / 0700
2014 Lead and Copper Rule MR 2 SDWIS / CA5810002 / 5000
2013 Coliform (TCR) MCL 13 SDWIS / CA5810002 / 3100

How LINDA COUNTY WATER DISTRICT Compares

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

Metric LINDA COUNTY WATER DISTRICT California avg Federal benchmark
Total violations 25 21.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 13 8.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 64.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 21,654 5,850 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,249 regulated public water systems in California.

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 LINDA COUNTY WATER DISTRICT water safe to drink? ▼
LINDA COUNTY WATER DISTRICT (PWS ID: CA5810002) has 25 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 21,654 people using Groundwater sources.
How many people does LINDA COUNTY WATER DISTRICT serve? ▼
LINDA COUNTY WATER DISTRICT serves 21,654 people in MARYSVILLE, California. It is a Local-owned system using Groundwater water sources with 5,464 service connections.
What type of violations does LINDA COUNTY WATER DISTRICT have? ▼
LINDA COUNTY WATER DISTRICT has 25 total violations: 13 health-based violations (MCL exceedances or treatment failures), 10 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LINDA COUNTY WATER DISTRICT water? ▼
No. LINDA COUNTY WATER DISTRICT was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does LINDA COUNTY WATER DISTRICT use? ▼
LINDA COUNTY WATER DISTRICT 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial