Is Point Mugu, CA Tap Water Safe to Drink?
Graded A- — but Copper, Strontium and 1 more were detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓
85.5/100
waterverge.com Point Mugu, CA — Water Quality Report
Point Mugu's drinking water received a grade of A- (85.5 out of 100), indicating good water quality. The city's 3 water systems serve approximately 14,579 residents using purchased 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 26 violations on record, including 11 health-based violations. 3 remain unresolved.
What to know about Point Mugu's water
Point Mugu ranks #257 out of 694 cities in California for water quality, placing it mid-range 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.
Hexavalent chromium (chromium-6) was detected at 0.25 µg/L in UCMR 3 testing. While below California's 10 µg/L limit and with no federal MCL set, residents sensitive to this contaminant may consider reverse osmosis filtration.
Water quality score
See methodology →Is Point Mugu, CA water safe to drink?
Point Mugu's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (85.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 3 water systems serve approximately 14,579 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Point Mugu
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Point Mugu's water quality assessment. Grade: A- (85.5/100).
Contaminants: Revised Total Coliform Rule.
Contaminants: Total Haloacetic Acids (HAA5), TTHM.
1 health-based. Contaminants: TTHM.
Key contaminant findings
Based on the most recent EPA sampling data for Point Mugu's water supply.
Well within EPA limits.
Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.
Violation history
Point Mugu's water system has 26 total violations on record, including 11 health-based violations. 3 remain unresolved. 3 violations were issued in the last 5 years.
Where does Point Mugu's water come from?
Point Mugu's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 3 water systems serving approximately 14,579 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment.
What Point Mugu residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Point Mugu's water.
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.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Recommended water filters
Based on contaminants detected in Point Mugu's water supply, we recommend the following filter types.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 0.0 | 15 | ppb | Inorganic | Safe |
| Copper (90th percentile) CopperInorganic A metal that enters drinking water mainly through corrosion of copper plumbing. Small amounts are essential for health, but excess levels are harmful. Health EffectsGastrointestinal distress (nausea, vomiting, diarrhea) at short-term high levels; liver and kidney damage from long-term exposure. EPA Limit1.3 mg/L action level Common SourcesCorrosion of copper household plumbing, erosion of natural deposits. | 1.40 | 1.3 | mg/L | Inorganic | Over Limit |
Lead level trend (90th percentile)
Copper level (90th percentile)
Latest reading: 1.600 mg/L (1996)
EPA action level: 1.3 mg/L
See how Point Mugu compares by contaminant
Explore where Point Mugu ranks among all California cities for specific contaminants.
Water source & infrastructure
Where Point Mugu's water comes from
Point Mugu'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 federal ownership and serves approximately 14,579 people through 3 water systems.
Water systems serving Point Mugu
| System Name | PWSID | Population | Source |
|---|---|---|---|
| NAVAL BASE VENTURA COUNTY, PORT HUENEME | CA5610701 | 8,625 | SWP |
| NAVAL BASE VENTURA COUNTY, POINT MUGU | CA5610700 | 5,700 | SWP |
| U.S.N., SAN NICOLAS ISLAND | CA5610702 | 254 | GU |
How Point Mugu compares
Full California rankings →Point Mugu's score of 85.5/100 is above the average of 57/100 among major California cities. It outscores 8 of 10 nearby cities.
Nearby cities
View California rankings →Learn more about your water
Guides and resources related to Point Mugu's water quality findings.
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Frequently asked questions
Is Point Mugu, CA tap water safe to drink?
Point Mugu's water quality earned a grade of A- (85.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #257 out of 694 cities tested in California.
What contaminants are in Point Mugu's water?
Lead was measured at 0.0 ppb (90th percentile). 26 violations are on record.
How is Point Mugu'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 Point Mugu?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Point Mugu's water come from?
Point Mugu's water is sourced from Purchased surface water. The city has 3 water systems serving approximately 14,579 residents.
What health violations has Point Mugu's water system had?
Point Mugu has 11 health-based violations on record. The most recent violation was recorded in July 2023. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.
How does Point Mugu's water compare to other cities?
Point Mugu ranks #257 out of 694 cities in California (better than 63% of state cities) and #5260 out of 15744 cities nationally (67th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.