WaterVerge

Is La Selva Beach, 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 ↓

778 residents served 2 water systems PWSID: CA4400755
Overall Score
92.9 / 100
Violations
1 active
Last Updated
May 2026
Source
Groundwater
#81 of 694 in California Top 7% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
92.9/100
waterverge.com
A 92.9/100

La Selva Beach, CA — Water Quality Report

La Selva Beach's drinking water received a grade of A (92.9 out of 100), indicating excellent water quality. The city's 2 water systems serve approximately 778 residents using groundwater.

Lead levels were measured at 1.4 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 16 violations on record, including 0 health-based violations. 1 remains unresolved.

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

What to know about La Selva Beach's water

La Selva Beach ranks #81 out of 694 cities in California for water quality, placing it above average in the state.

La Selva Beach 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.

As a small community water system, La Selva Beach may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
92.9 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
42.9/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.4 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is La Selva Beach, CA water safe to drink?

Use Caution

La Selva Beach's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (92.9/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 2 water systems serve approximately 778 residents using groundwater (wells).

1
Active Violations
1.4 ppb
Lead (90th %ile)
10 events
Disaster History

Recent water quality updates for La Selva Beach

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into La Selva Beach's water quality assessment. Grade: A (92.9/100).

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
2 drinking water violations recorded

Contaminants: Nitrate.

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Violation
1 drinking water violation recorded

Contaminants: Coliform (TCR).

Key contaminant findings

Based on the most recent EPA sampling data for La Selva Beach's water supply.

Lead Within Limits
Detected: 1.4 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

La Selva Beach's water system has 16 total violations on record, including 0 health-based violations. 1 remain unresolved. 3 violations were issued in the last 5 years.

MRMONOther
Most recent violations:
Jan 2022 Nitrate Resolved
Jan 2022 Nitrate Resolved
Aug 2021 Revised Total Coliform Rule Resolved
Apr 2013 Coliform (TCR) Resolved
Jan 2010 Coliform (TCR) Resolved

Flood & environmental risk

Santa Cruz County has experienced 10 federally declared disasters since 1980. 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 Corralitos C A Freedom, Salsipuedes C Nr Watsonville, Pajaro R A Watsonville, Aptos C Nr Aptos, Soquel C A Soquel.

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 La Selva Beach's water come from?

La Selva Beach's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 778 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Corralitos C A Freedom (river), Salsipuedes C Nr Watsonville (river), Pajaro R A Watsonville (river), Aptos C Nr Aptos (river), Soquel C A Soquel (river).

What La Selva Beach 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

La Selva Beach'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
1.4 ppb
EPA Action Level: 15 ppb · 9% of limit
Safe Level
Compliance Record

Violation summary

16
Total violations
0
Health-based
1
Active / unresolved
Jan 2022
Most recent violation
Compliance Record

Violations & advisories

16 Total
1 Active
0 Health-based
15 Resolved
Violations by category
Miscellaneous Other Rules
6
Total Coliform Rule
3
Radionuclides and Revised Rad Rule
3
Nitrate Rule
2
Revised Total Coliform Rule
1
Active
Compliance Violation
Monitoring 0
Jan 2022 Resolved
Nitrate
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Jan 2022 Resolved
Nitrate
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Aug 2021 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Aug 2021
Apr 2013 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Apr 2013
Jan 2010 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jan 2010
May 2006 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved May 2006
Sep 1984 Resolved
Miscellaneous Other Rules
Other Violation Resolved Sep 1984
Sep 1984 Resolved
Miscellaneous Other Rules
Other Violation Resolved Sep 1984
Aug 1984 Resolved
Miscellaneous Other Rules
Other Violation Resolved Aug 1984
May 1984 Resolved
Miscellaneous Other Rules
Other Violation Resolved May 1984
Nov 1983 Resolved
Miscellaneous Other Rules
Other Violation Resolved Nov 1983
Oct 1983 Resolved
Miscellaneous Other Rules
Other Violation Resolved Oct 1983
Oct 1981 Resolved
Gross Alpha, Excl. Radon and U
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 1982
Oct 1981 Resolved
Gross Alpha, Excl. Radon and U
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 1982
Oct 1980 Resolved
Gross Alpha, Excl. Radon and U
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 1981
Environmental Risk

Flood & disaster history

10
Declared disasters
Mar 2023
Most recent
Flood
Most common type

Santa Cruz County has experienced 10 federally declared disasters since 1980. 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
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3248

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.4 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has increased by 1.4 ppb from 2013 (0.0 ppb) to 2025 (1.4 ppb).
Contaminant Rankings

See how La Selva Beach compares by contaminant

Explore where La Selva Beach ranks among all California cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
778
Water Systems
2
Water Source

Where La Selva Beach's water comes from

Groundwater

La Selva Beach'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 private ownership and serves approximately 778 people through 2 water systems.

Local Hydrology

Water bodies near La Selva Beach

La Selva Beach is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Corralitos C A Freedom
river
Salsipuedes C Nr Watsonville
river
Pajaro R A Watsonville
river
Aptos C Nr Aptos
river
Soquel C A Soquel
river
Infrastructure

Water systems serving La Selva Beach

System Name PWSID Population Source
MONTEREY BAY ACADEMY CA4400755 400 GW
SAN ANDREAS MUTUAL WATER CO CA4400558 378 GW
Regional Comparison

How La Selva Beach compares

Full California rankings →

La Selva Beach's score of 92.9/100 is above the average of 57/100 among major California cities. It outscores 10 of 10 nearby cities.

La Selva Beach (this city)
92.9
Oakland
77.9
San Diego
39.7
Sacramento
31.2
California avg
57
City Profile

About La Selva Beach, CA

Economic Profile
$171,250
Median Income
$1,174,488
Median Home Value
$3,367/mo
Median Rent
3.6%
Unemployment
Community
41.8
Median Age
169
People / sq mi
61.7%
College Educated
56.4%
Homeownership
Share this reportHelp others learn about their water quality
WhatsAppXFacebookLinkedInEmail

Frequently asked questions

Is La Selva Beach, CA tap water safe to drink?

La Selva Beach's water quality earned a grade of A (92.9/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #81 out of 694 cities tested in California.

What contaminants are in La Selva Beach's water?

Lead was measured at 1.4 ppb (90th percentile). 16 violations are on record.

How is La Selva Beach'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 La Selva Beach?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does La Selva Beach's water come from?

La Selva Beach's water is sourced from Groundwater. The city has 2 water systems serving approximately 778 residents.

Is La Selva Beach's groundwater at risk of contamination?

La Selva Beach 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 16 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 La Selva Beach's water compare to other cities?

La Selva Beach ranks #81 out of 694 cities in California (better than 88% of state cities) and #1072 out of 15744 cities nationally (93th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.