WaterVerge

Is Live Oak, CA Tap Water Safe to Drink?

Graded A-. PFPeA was detected — within EPA limits, but worth understanding. Here's the full picture. What to do next ↓

9K residents served 2 water systems PWSID: CA5110001
Overall Score
89.6 / 100
Violations
None active
Last Updated
May 2026
Source
Groundwater
#156 of 694 in California Top 17% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
89.6/100
waterverge.com
A- 89.6/100

Live Oak, CA — Water Quality Report

Live Oak's drinking water received a grade of A- (89.6 out of 100), indicating good water quality. The city's 2 water systems serve approximately 9,318 residents using groundwater.

Lead levels were measured at 2.3 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 2 PFAS compounds in the water supply.

The system has 35 violations on record, including 26 health-based violations. All violations have been resolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Live Oak's water

Live Oak ranks #156 out of 694 cities in California for water quality, placing it above average in the state.

Live Oak relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

PFAS compounds were detected in testing, though levels remain within current EPA limits. Residents seeking extra precaution may consider an activated carbon or reverse osmosis filter.

Quality Breakdown

Water quality score

See methodology →
89.6 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
40.6/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 2.3 ppb (90th percentile).
Contaminants
14/20
C
2 PFAS compounds detected.
Compliance
10/10
A
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Live Oak, CA water safe to drink?

Generally Safe

Based on EPA testing data, Live Oak's tap water is generally safe to drink. The water system earned a grade of A- (89.6/100), meeting federal drinking water standards across key contaminant categories. The city's 2 water systems serve approximately 9,318 residents using groundwater (wells).

None
Violations
2.3 ppb
Lead (90th %ile)
2 compounds
PFAS Detected
8 events
Disaster History

Recent water quality updates for Live Oak

A timeline of significant water quality events, violations, and data updates.

PFAS
2 PFAS "forever chemical" compounds detected

Detected at levels within current EPA limits. PFAS persist indefinitely in the environment.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Live Oak's water quality assessment. Grade: A- (89.6/100).

Disaster
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES

Federal disaster declaration (FEMA DR-4683). Flood event — may have impacted local water infrastructure.

Disaster
SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES

Federal disaster declaration (FEMA DR-3591). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: TTHM.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Coliform (TCR).

Key contaminant findings

Based on the most recent EPA sampling data for Live Oak's water supply.

Lead Within Limits
Detected: 2.3 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

PFAS (2 compounds) Elevated
Detected: Highest: PFPeA at 0.0034 µg/L Limit: 0.004 µg/L (EPA MCL)

Detected but within current EPA limits. PFAS do not break down in the environment and can accumulate in the body over time. An activated carbon filter can reduce exposure.

PFAS "forever chemicals" detected

UCMR 5 testing found 2 PFAS compounds in Live Oak's water supply. PFAS are synthetic chemicals that persist indefinitely in the environment and the human body.

Compound Level EPA MCL Status
PFPeA 0.0034 µg/L 0.004 µg/L Within Limit
PFHxA 0.0030 µg/L 0.004 µg/L Within Limit

Violation history

Live Oak's water system has 35 total violations on record, including 26 health-based violations. All violations have been resolved.

MRMCL
Most recent violations:
Aug 2017 TTHM Resolved
Dec 2014 Coliform (TCR) Resolved
Aug 2014 Coliform (TCR) Resolved
Jul 2014 Coliform (TCR) Resolved
Jun 2014 Coliform (TCR) Resolved

Flood & environmental risk

Sutter County has experienced 8 federally declared disasters since 1964. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Yuba R Nr Marysville.

SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-4683
SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES
Flood FEMA DR-3591
SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES
Flood FEMA DR-4308

Where does Live Oak's water come from?

Live Oak's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 9,318 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Yuba R Nr Marysville (river).

What Live Oak residents can do

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Live Oak's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
2.3 ppb
EPA Action Level: 15 ppb · 15% of limit
Safe Level
PFPeA
PFAS / Forever Chemical
Near MCL
0.0034 µg/L
EPA MCL: 0.004 µg/L · 85% of limit
Detected
PFAS Testing

Forever chemicals overview

National PFAS report →
30
Compounds tested
2
Detected
0
Exceed EPA MCL
Compliance Record

Violation summary

35
Total violations
26
Health-based
0
Active / unresolved
Aug 2017
Most recent violation
Compliance Record

Violations & advisories

35 Total
0 Active
26 Health-based
35 Resolved
Violations by category
Total Coliform Rule
16
Arsenic Rule
11
Nitrate Rule
3
Lead and Copper Rule
2
Radionuclides and Revised Rad Rule
2
Aug 2017 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 2017
Dec 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Dec 2014
Aug 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Aug 2014
Jul 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 2014
Jun 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jun 2014
May 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved May 2014
Apr 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Apr 2014
Mar 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Mar 2014
Feb 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Feb 2014
Jan 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jan 2014
Sep 2013 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 2013
Jul 2013 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 2013
Mar 2011 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Mar 2011
Jul 2010 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 2010
Jun 2010 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jun 2010
Oct 2008 Resolved
Arsenic
Max Contaminant Level
Health-Based Health Resolved Dec 2008
Jul 2008 Resolved
Arsenic
Max Contaminant Level
Health-Based Health Resolved Sep 2008
Apr 2008 Resolved
Arsenic
Max Contaminant Level
Health-Based Health Resolved Jun 2008
Jan 2008 Resolved
Arsenic
Max Contaminant Level
Health-Based Health Resolved Mar 2008
Oct 2007 Resolved
Arsenic
Max Contaminant Level
Health-Based Health Resolved Dec 2007
Showing 20 of 35 violations
Industrial pollution

Top industrial polluters within 10 miles of Live Oak

Industrial polluters nearby

Reported releases to surface water by facilities near Live Oak, ranked by pounds discharged annually.

Total reported releases to surface water: 0 lbs

FacilityTop chemicalTo surface water (lbs/yr)Distance
GRANITE ROCK CO SANTA CRUZ CON
Nonmetallic Mineral Product · GRANITE ROCK CO
SANTA CRUZ, CA95060
Lead02.9 mi
FELTON QUARRY
Petroleum · NA
FELTON, CA95018
7.2 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Site context

Superfund sites within 10 miles of Live Oak

Superfund sites nearby

Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.

Source: EPA Superfund National Priorities List

Environmental Risk

Drought conditions

D1 — moderate drought

Plumas County is currently in D1 (moderate drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

24.6%
Months in D2+ (last 30y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

8
Declared disasters
Jan 2023
Most recent
Flood
Most common type

Sutter County has experienced 8 federally declared disasters since 1964. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Jan 2023
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #4683
Jan 2023
SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES
Flood FEMA #3591
Apr 2017
SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES
Flood FEMA #4308
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3248
Feb 1986
SEVERE STORMS & FLOODING
Flood FEMA #758
Feb 1983
COASTAL STORMS, FLOODS, SLIDES & TORNADOES
Coastal Storm FEMA #677

Recommended water filters

Based on contaminants detected in Live Oak's water supply, we recommend the following filter types.

🧪
For PFAS
Reverse Osmosis or Activated Carbon Block
2 PFAS compounds detected

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 2.3 15 ppb Inorganic Safe
11Cl-PF3OUdS ND HI µg/L PFAS Not Detected
4:2 FTS ND HI µg/L PFAS Not Detected
6:2 FTS ND HI µg/L PFAS Not Detected
8:2 FTS ND HI µg/L PFAS Not Detected
9Cl-PF3ONS ND HI µg/L PFAS Not Detected
ADONA ND HI µg/L PFAS Not Detected
HFPO-DA ND 0.01 µg/L PFAS Not Detected
lithium ND HI µg/L PFAS Not Detected
NEtFOSAA ND HI µg/L PFAS Not Detected
NFDHA ND HI µg/L PFAS Not Detected
NMeFOSAA ND HI µg/L PFAS Not Detected
PFBA ND HI µg/L PFAS Not Detected
PFBS ND HI µg/L PFAS Not Detected
PFDA ND HI µg/L PFAS Not Detected
PFDoA ND HI µg/L PFAS Not Detected
PFEESA ND HI µg/L PFAS Not Detected
PFHpA ND HI µg/L PFAS Not Detected
PFHpS ND HI µg/L PFAS Not Detected
PFHxA 0.003 HI µg/L PFAS Detected
PFHxS ND HI µg/L PFAS Not Detected
PFMBA ND HI µg/L PFAS Not Detected
PFMPA ND HI µg/L PFAS Not Detected
PFNA ND HI µg/L PFAS Not Detected
PFOA ND 0.004 µg/L PFAS Not Detected
PFOS ND 0.004 µg/L PFAS Not Detected
PFPeA 0.003 HI µg/L PFAS Detected
PFPeS ND HI µg/L PFAS Not Detected
PFTA ND HI µg/L PFAS Not Detected
PFTrDA ND HI µg/L PFAS Not Detected
PFUnA ND HI µg/L PFAS Not Detected
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has increased by 1.3 ppb from 1992 (1.0 ppb) to 2025 (2.3 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
9,318
Water Systems
2
Water Source

Where Live Oak's water comes from

Groundwater

Live Oak's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by local government ownership and serves approximately 9,318 people through 2 water systems.

Local Hydrology

Water bodies near Live Oak

Live Oak is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Yuba R Nr Marysville
river
Infrastructure

Water systems serving Live Oak

System Name PWSID Population Source
CITY OF LIVE OAK CA5110001 9,285 GW
ARLINGTON HEIGHTS MHP CA3200127 33 GW
Regional Comparison

How Live Oak compares

Full California rankings →

Live Oak's score of 89.6/100 is above the average of 57/100 among major California cities. It outscores 9 of 10 nearby cities.

Live Oak (this city)
89.6
Oakland
77.9
San Diego
39.7
Sacramento
31.2
California avg
57
City Profile

About Live Oak, CA

Economic Profile
$99,541
Median Income
$870,800
Median Home Value
$2,328/mo
Median Rent
4.6%
Unemployment
Community
38.3
Median Age
2,108
People / sq mi
40.9%
College Educated
60.5%
Homeownership
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Frequently asked questions

Is Live Oak, CA tap water safe to drink?

Live Oak's water quality earned a grade of A- (89.6/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #156 out of 694 cities tested in California.

What contaminants are in Live Oak's water?

Lead was measured at 2.3 ppb (90th percentile). 2 PFAS compounds were detected. 35 violations are on record.

How is Live Oak's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Live Oak?

PFAS compounds have been detected. A filter with activated carbon can help reduce exposure.

Where does Live Oak's water come from?

Live Oak's water is sourced from Groundwater. The city has 2 water systems serving approximately 9,318 residents.

What health violations has Live Oak's water system had?

Live Oak has 26 health-based violations on record. The most recent violation was recorded in August 2017. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. All health violations have been resolved.

Is Live Oak's groundwater at risk of contamination?

Live Oak uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 35 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Live Oak's water compare to other cities?

Live Oak ranks #156 out of 694 cities in California (better than 78% of state cities) and #2693 out of 15744 cities nationally (83th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.