WaterVerge

Is Strathmore, CA Tap Water Safe to Drink?

Graded D+, with 16 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

3K residents served 3 water systems PWSID: CA5410012
Overall Score
52.7 / 100
Violations
16 active
Last Updated
May 2026
Source
Surface water
#594 of 694 in California Top 81% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
D+GRADE
Water Quality Grade
52.7/100
waterverge.com
D+ 52.7/100

Strathmore, CA — Water Quality Report

Strathmore's drinking water received a grade of D+ (52.7 out of 100), indicating poor water quality. The city's 3 water systems serve approximately 3,424 residents using surface water.

Lead levels were measured at 0.0 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 171 violations on record, including 118 health-based violations. 16 remain unresolved.

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

What to know about Strathmore's water

Strathmore ranks #594 out of 694 cities in California for water quality, placing it among the lowest-rated 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.

The system has seen 9 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
52.7 out of 100 Grade D+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
3.7/45
F
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Surface water.
Water Safety

Is Strathmore, CA water safe to drink?

Concerns Identified

Strathmore's drinking water has significant quality concerns based on EPA testing data. With a grade of D+ (52.7/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 3 water systems serve approximately 3,424 residents using surface water (rivers, lakes, or reservoirs).

16
Active Violations
0.0 ppb
Lead (90th %ile)
9 events
Disaster History

Recent water quality updates for Strathmore

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Strathmore's water quality assessment. Grade: D+ (52.7/100).

Violation
1 drinking water violation recorded

Contaminants: LEAD AND COPPER RULE REVISIONS.

Violation
4 drinking water violations recorded

2 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Nitrate.

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.

Key contaminant findings

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

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

Well within EPA limits.

Violation history

Strathmore's water system has 171 total violations on record, including 118 health-based violations. 16 remain unresolved. 9 violations were issued in the last 5 years.

RPTTTMCLMROther
Most recent violations:
Jul 2025 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open

Flood & environmental risk

Tulare County has experienced 9 federally declared disasters since 1967. 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 Deer C A Road 272 Bridge Nr Porterville.

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 Strathmore's water come from?

Strathmore's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 3 water systems serving approximately 3,424 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Deer C A Road 272 Bridge Nr Porterville (river).

What Strathmore residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Strathmore's water.

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

Strathmore'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
Compliance Record

Violation summary

171
Total violations
118
Health-based
16
Active / unresolved
Jul 2025
Most recent violation
Compliance Record

Violations & advisories

171 Total
16 Active
118 Health-based
155 Resolved
2 SNC
Violations by category
Nitrate Rule
110
Total Coliform Rule
20
Lead and Copper Rule
9
Stage 1 Disinfectants and Disinfection Byproducts Rule
6
Lead and Copper Rule Revisions
5
Jul 2025 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Treatment Technique
Health-Based Health 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Treatment Technique
Health-Based Health 0
Oct 2018 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2017 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 2015 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 2013 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 2011 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 2008 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2005 Active
Consumer Confidence Rule
Other Violation 0
Jul 2004 Active
Consumer Confidence Rule
Other Violation 0
Jan 2001 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2000 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Apr 2023 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Jun 2023
Jul 2022 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Sep 2022
Apr 2021 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Jun 2021
Jan 2021 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Mar 2021
Showing 20 of 171 violations
Industrial pollution

Top industrial polluters within 10 miles of Strathmore

Industrial polluters nearby

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

FacilityTop chemicalTo surface water (lbs/yr)Distance
MCWANE PLANT & INDUSTRIAL
Fabricated Metals · MCWANE INC
EXETER, CA93221
7.8 mi
QUIKRETE - PORTERVILLE CA PLANT
Nonmetallic Mineral Product · QUIKRETE HOLDINGS
PORTERVILLE, CA93257
9.7 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Flood & disaster history

9
Declared disasters
Mar 2023
Most recent
Flood
Most common type

Tulare County has experienced 9 federally declared disasters since 1967. 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
Jan 2011
SEVERE WINTER STORMS, FLOODING, AND DEBRIS AND MUD FLOWS
Flood FEMA #1952
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3248
Feb 1993
SEVERE WINTER STORM, MUD & LAND SLIDES, & FLOODING
Flood FEMA #979

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 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 decreased by 0.0 ppb from 1993 (0.0 ppb) to 2025 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Surface Water
Operator
Local Government
Population Served
3,424
Water Systems
3
Source breakdown
Groundwater
2
Surface Water
1
Water Source

Where Strathmore's water comes from

Surface Water

Strathmore'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 local government ownership and serves approximately 3,424 people through 3 water systems.

Local Hydrology

Water bodies near Strathmore

Strathmore is located near 1 notable water body. As a surface water system, these water bodies may directly influence the city's drinking water supply.

Deer C A Road 272 Bridge Nr Porterville
river
Infrastructure

Water systems serving Strathmore

System Name PWSID Population Source
STRATHMORE PUBLIC UTIL DIST CA5410012 2,669 SW
PLAINVIEW MUTUAL WATER COMPANY CA5410039 617 GW
PLAINVIEW MWC - CENTRAL WATER CA5400682 138 GW
Regional Comparison

How Strathmore compares

Full California rankings →

Strathmore's score of 52.7/100 is on par with the average of 57/100 among major California cities. It outscores 5 of 10 nearby cities.

Strathmore (this city)
52.7
Oakland
77.9
San Diego
39.7
Sacramento
31.2
California avg
57
City Profile

About Strathmore, CA

Wikipedia →

Strathmore is a census-designated place (CDP) in Tulare County, California, United States. The population was 2,830 at the 2020 census, up from 2,819 at the 2010 census.

Economic Profile
$40,106
Median Income
$988/mo
Median Rent
15.2%
Unemployment
Community
36.2
Median Age
819
People / sq mi
2.6%
College Educated
73.6%
Homeownership
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Frequently asked questions

Is Strathmore, CA tap water safe to drink?

Strathmore's water quality earned a grade of D+ (52.7/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #594 out of 694 cities tested in California.

What contaminants are in Strathmore's water?

Lead was measured at 0.0 ppb (90th percentile). 171 violations are on record.

How is Strathmore'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 Strathmore?

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

Where does Strathmore's water come from?

Strathmore's water is sourced from Surface water. The city has 3 water systems serving approximately 3,424 residents.

What health violations has Strathmore's water system had?

Strathmore has 118 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 16 violations remain unresolved.

How does Strathmore's water compare to other cities?

Strathmore ranks #594 out of 694 cities in California (better than 14% of state cities) and #12747 out of 15744 cities nationally (19th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.