Water Quality in Lemon Cove, CA: 20 Violations — Grade D
Grade D · Score 41/100 · 1 water system · Updated 2026-05-03
Lemon Cove's water has significant violations. Water testing and filtration are recommended.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Lemon Cove in CA has 20 EPA water violations documented — the compliance history below covers what was flagged and which local systems are associated with each finding.
Water Quality by ZIP Code in Lemon Cove
Water quality varies across Lemon Cove's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 93244 | D | 41 | 20 | 19 | View report → |
Violation Trend
EPA violations recorded for water systems serving Lemon Cove.
Water Quality Overview
Lemon Cove, California receives a water quality grade of D with an overall score of 41 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving Lemon Cove have accumulated 20 EPA violations, including 19 health-based violations. These violations are tracked across 1 ZIP codes serving approximately 109 people.
What Grade D Means
A grade of D indicates significant compliance issues. Lemon Cove's water systems have accumulated violations that suggest ongoing water quality challenges. Residents should check their specific ZIP code report and consider water testing or filtration.
Lead Levels
The average 90th percentile lead level across Lemon Cove water systems is 0.0118 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 58% of homes built before 1986, Lemon Cove has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Radon Risk
Lemon Cove is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.
Water Systems Serving Lemon Cove
Lemon Cove is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 109 people across 1 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
How to Check Your Water in Lemon Cove
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Contaminants Detected in Lemon Cove Water Systems
The following contaminants have been detected or caused violations across Lemon Cove's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Lead | Inorganic | 0.015 mg/L | 18 | 1 | Yes |
| Stage 2 DBP Rule | Treatment Technique | N/A | 2 | 1 | Yes |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
Violation Trend Over Time
Year-by-year EPA violations recorded for water systems serving Lemon Cove:
| Year | Total Violations | Health-Based |
|---|---|---|
| 2022 | 4 | 4 |
| 2023 | 4 | 4 |
| 2024 | 5 | 5 |
| 2025 | 2 | 2 |
Violations have decreased from 4 in 2022 to 2 in 2025, indicating improving compliance.
Lemon Cove vs. Nearby California Cities
How Lemon Cove's water quality compares to similar cities in California:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Lemon Cove | D | 20 | 1 | 109 |
| Floriston | B | 1 | 1 | 110 |
| Jolon | D | 0 | 1 | 108 |
| Helm | D | 2 | 1 | 105 |
Common Questions About Lemon Cove Water
These are the most common questions residents search for about water quality in Lemon Cove, California:
Is Lemon Cove water hard or soft? Water hardness varies by source. Lemon Cove's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Lemon Cove tap water? Lemon Cove's water receives a grade of D (41/100). There are 19 health-based violations — consider filtration.
What is the best water filter for Lemon Cove? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Lemon Cove vs. California Average
Understanding how Lemon Cove compares to the broader California average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Lemon Cove.
ZIP Codes in Lemon Cove
Lemon Cove spans 1 ZIP code. The ZIP with the lowest water quality score is 93244. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.