WaterVerge

Is Vandenberg Sfb, CA Tap Water Safe to Drink?

Graded A, with 1 unresolved violation on record. See what was cited — and what it means for your tap. What to do next ↓

15K residents served 1 water system PWSID: CA4210700
Overall Score
93.5 / 100
Violations
1 active
Last Updated
May 2026
Source
Purchased surface water
#67 of 694 in California Top 5% nationally
Private
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
93.5/100
waterverge.com
A 93.5/100

Vandenberg Sfb, CA — Water Quality Report

Vandenberg Sfb's drinking water received a grade of A (93.5 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 14,971 residents using purchased surface water.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 1 PFAS compound in the water supply.

The system has 9 violations on record, including 8 health-based violations. 1 remains unresolved.

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

What to know about Vandenberg Sfb's water

Vandenberg Sfb ranks #67 out of 694 cities in California for water quality, placing it one of the best in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

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 →
93.5 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
43.2/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
18.2/20
A
1 PFAS compound detected.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Purchased surface water.
Water Safety

Is Vandenberg Sfb, CA water safe to drink?

Use Caution

Vandenberg Sfb's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (93.5/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 14,971 residents using surface water (rivers, lakes, or reservoirs).

1
Active Violations
0.0 ppb
Lead (90th %ile)
1 compound
PFAS Detected
10 events
Disaster History

Recent water quality updates for Vandenberg Sfb

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

PFAS
1 PFAS "forever chemical" compound 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 Vandenberg Sfb's water quality assessment. Grade: A (93.5/100).

Disaster
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES

Federal disaster declaration (FEMA DR-3592). Flood event — may have impacted local water infrastructure.

Disaster
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES

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

Violation
1 drinking water violation recorded

1 health-based. Contaminants: TTHM.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: TTHM.

Key contaminant findings

Based on the most recent EPA sampling data for Vandenberg Sfb's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

PFAS (1 compound) Elevated
Detected: Highest: lithium at 55.1000 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.

Violation history

Vandenberg Sfb's water system has 9 total violations on record, including 8 health-based violations. 1 remain unresolved.

MCLTT
Most recent violations:
Oct 2015 TTHM Resolved
Jul 2015 TTHM Resolved
Apr 2015 TTHM Resolved
Jan 2015 TTHM Resolved
Sep 2010 Surface Water Treatment Rule Resolved

Flood & environmental risk

Santa Barbara County has experienced 10 federally declared disasters since 1983. 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 Santa Ynez R A Narrows Nr Lompoc, Santa Ynez R A H St Nr Lompoc, Harris Canyon C Nr Orcutt, San Antonio C A San Antonio Rd E Nr Orcutt, San Antonio C Nr Casmalia.

SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-3592
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-4683
SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES
Flood FEMA DR-3591

Where does Vandenberg Sfb's water come from?

Vandenberg Sfb's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 14,971 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Santa Ynez R A Narrows Nr Lompoc (river), Santa Ynez R A H St Nr Lompoc (river), Harris Canyon C Nr Orcutt (river), San Antonio C A San Antonio Rd E Nr Orcutt (river), San Antonio C Nr Casmalia (river).

What Vandenberg Sfb 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

Vandenberg Sfb'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
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
lithium
PFAS / Forever Chemical
Near MCL
55.1000 µg/L
EPA MCL: 0.004 µg/L · +20% over limit
Detected
Lithium
Inorganic
Detected
55.1 µg/L
State screening level: 60 µg/L · 92% of limit
DetectedNo federal MCLUCMR 5 Data (2023–2025)
PFAS Testing

Forever chemicals overview

National PFAS report →
30
Compounds tested
1
Detected
0
Exceed EPA MCL
Compliance Record

Violation summary

9
Total violations
8
Health-based
1
Active / unresolved
Oct 2015
Most recent violation
Compliance Record

Violations & advisories

9 Total
1 Active
8 Health-based
8 Resolved
2 SNC
Violations by category
Stage 2 Disinfectants and Disinfection Byproducts Rule
4
Surface Water Treatment Rule
2
Total Coliform Rule
2
Active
Compliance Violation
Monitoring 0
Oct 2015 Resolved
TTHM
Max Contaminant Level
SNC Health Resolved Dec 2015
Jul 2015 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Sep 2015
Apr 2015 Resolved
TTHM
Max Contaminant Level
SNC Health Resolved Jun 2015
Jan 2015 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Mar 2015
Sep 2010 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Sep 2010
Sep 2009 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Sep 2009
Aug 1997 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Aug 1997
Jul 1993 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 1993
Environmental Risk

Flood & disaster history

10
Declared disasters
Mar 2023
Most recent
Flood
Most common type

Santa Barbara County has experienced 10 federally declared disasters since 1983. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Mar 2023
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #3592
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
Mar 2017
SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES
Flood FEMA #4305
Jan 2011
SEVERE WINTER STORMS, FLOODING, AND DEBRIS AND MUD FLOWS
Flood FEMA #1952

Recommended water filters

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

🧪
For PFAS
Reverse Osmosis or Activated Carbon Block
1 PFAS compound detected

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 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 55.100 HI µg/L PFAS 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 ND HI µg/L PFAS Not 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 ND HI µg/L PFAS Not 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 decreased by 43.0 ppb from 1992 (43.0 ppb) to 2023 (0.0 ppb).
Contaminant Rankings

See how Vandenberg Sfb compares by contaminant

Explore where Vandenberg Sfb ranks among all California cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Purchased Surface Water
Operator
Private
Population Served
14,971
Water Systems
1
Water Source

Where Vandenberg Sfb's water comes from

Purchased Surface Water

Vandenberg Sfb's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by private ownership and serves approximately 14,971 people through 1 water system.

Local Hydrology

Water bodies near Vandenberg Sfb

Vandenberg Sfb is located near 5 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.

Santa Ynez R A Narrows Nr Lompoc
river
Santa Ynez R A H St Nr Lompoc
river
Harris Canyon C Nr Orcutt
river
San Antonio C A San Antonio Rd E Nr Orcutt
river
San Antonio C Nr Casmalia
river
Infrastructure

Water systems serving Vandenberg Sfb

System Name PWSID Population Source
AMERICAN WATER O&M, LLC - VSFB CA4210700 14,971 SWP
Regional Comparison

How Vandenberg Sfb compares

Full California rankings →

Vandenberg Sfb's score of 93.5/100 is above the average of 57/100 among major California cities. It outscores 10 of 10 nearby cities.

Vandenberg Sfb (this city)
93.5
Oakland
77.9
San Diego
39.7
Sacramento
31.2
California avg
57
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Frequently asked questions

Is Vandenberg Sfb, CA tap water safe to drink?

Vandenberg Sfb's water quality earned a grade of A (93.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #67 out of 694 cities tested in California.

What contaminants are in Vandenberg Sfb's water?

Lead was measured at 0.0 ppb (90th percentile). 1 PFAS compound was detected. 9 violations are on record.

How is Vandenberg Sfb'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 Vandenberg Sfb?

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

Where does Vandenberg Sfb's water come from?

Vandenberg Sfb's water is sourced from Purchased surface water. The city has 1 water system serving approximately 14,971 residents.

What health violations has Vandenberg Sfb's water system had?

Vandenberg Sfb has 8 health-based violations on record. The most recent violation was recorded in October 2015. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 1 violation remains unresolved.

How does Vandenberg Sfb's water compare to other cities?

Vandenberg Sfb ranks #67 out of 694 cities in California (better than 90% of state cities) and #803 out of 15744 cities nationally (95th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.