Is Palomar Mtn Road, CA Tap Water Safe to Drink?
Graded A+ with no contaminants above EPA limits. Here's everything we tested and how Palomar Mtn Road ranks. What to do next ↓
95.7/100
waterverge.com Palomar Mtn Road, CA — Water Quality Report
Palomar Mtn Road's drinking water received a grade of A+ (95.7 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 13,050 residents using groundwater.
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 8 violations on record, including 2 health-based violations. All violations have been resolved.
What to know about Palomar Mtn Road's water
Palomar Mtn Road ranks #31 out of 694 cities in California for water quality, placing it one of the best in the state.
Palomar Mtn Road 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.
Water quality score
See methodology →Is Palomar Mtn Road, CA water safe to drink?
Based on EPA testing data, Palomar Mtn Road's tap water is generally safe to drink. The water system earned a grade of A+ (95.7/100), meeting federal drinking water standards across key contaminant categories. The city's 1 water system serves approximately 13,050 residents using groundwater (wells).
Recent water quality updates for Palomar Mtn Road
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Palomar Mtn Road's water quality assessment. Grade: A+ (95.7/100).
Contaminants: Revised Total Coliform Rule.
Contaminants: Revised Total Coliform Rule.
Contaminants: Coliform (TCR).
Key contaminant findings
Based on the most recent EPA sampling data for Palomar Mtn Road's water supply.
Well within EPA limits.
Violation history
Palomar Mtn Road's water system has 8 total violations on record, including 2 health-based violations. All violations have been resolved. 1 violation was issued in the last 5 years.
Where does Palomar Mtn Road's water come from?
Palomar Mtn Road's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 13,050 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Palomar Mtn Road residents can do
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
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 |
Lead level trend (90th percentile)
See how Palomar Mtn Road compares by contaminant
Explore where Palomar Mtn Road ranks among all California cities for specific contaminants.
Water source & infrastructure
Where Palomar Mtn Road's water comes from
Palomar Mtn Road'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 13,050 people through 1 water system.
Water systems serving Palomar Mtn Road
| System Name | PWSID | Population | Source |
|---|---|---|---|
| PALOMAR CHRISTIAN CONFERENCE CENTER | CA3701982 | 13,050 | GW |
How Palomar Mtn Road compares
Full California rankings →Palomar Mtn Road's score of 95.7/100 is above the average of 57/100 among major California cities. It outscores 10 of 10 nearby cities.
Nearby cities
View California rankings →About Palomar Mtn Road, CA
Wikipedia →Rapid is a bus rapid transit system serving San Diego County, California. It is part of the San Diego Metropolitan Transit System (MTS). The system operates on the HOV lanes of Interstate 15 and 805, bus lanes on El Cajon Boulevard, and on busways in the medians of Interstate 15, Park Boulevard, and East Palomar Street.
Learn more about your water
Guides and resources related to Palomar Mtn Road's water quality findings.
Explore water quality across San Diego
Frequently asked questions
Is Palomar Mtn Road, CA tap water safe to drink?
Palomar Mtn Road's water quality earned a grade of A+ (95.7/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #31 out of 694 cities tested in California.
What contaminants are in Palomar Mtn Road's water?
Lead was measured at 0.0 ppb (90th percentile). 8 violations are on record.
How is Palomar Mtn Road'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 Palomar Mtn Road?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Palomar Mtn Road's water come from?
Palomar Mtn Road's water is sourced from Groundwater. The city has 1 water system serving approximately 13,050 residents.
What health violations has Palomar Mtn Road's water system had?
Palomar Mtn Road has 2 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. All health violations have been resolved.
Is Palomar Mtn Road's groundwater at risk of contamination?
Palomar Mtn Road 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 8 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 Palomar Mtn Road's water compare to other cities?
Palomar Mtn Road ranks #31 out of 694 cities in California (better than 96% of state cities) and #278 out of 15744 cities nationally (98th percentile). The grade of A+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.