Is Barona North Reservation, CA Tap Water Safe to Drink?
Graded A- — but Copper was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓
87.6/100
waterverge.com Barona North Reservation, CA — Water Quality Report
Barona North Reservation's drinking water received a grade of A- (87.6 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,171 residents using groundwater.
Lead levels were measured at 2.9 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 6 violations on record, including 0 health-based violations. 1 remains unresolved.
What to know about Barona North Reservation's water
Barona North Reservation ranks #206 out of 694 cities in California for water quality, placing it mid-range in the state.
Barona North Reservation 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, Barona North Reservation may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 6 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Barona North Reservation, CA water safe to drink?
Barona North Reservation's tap water meets most EPA standards but has areas that warrant attention. With a grade of A- (87.6/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,171 residents using groundwater (wells).
Recent water quality updates for Barona North Reservation
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Barona North Reservation's water quality assessment. Grade: A- (87.6/100).
Contaminants: Revised Total Coliform Rule.
Federal disaster declaration (FEMA DR-4758). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4683). Flood event — may have impacted local water infrastructure.
Contaminants: Chlorine, Revised Total Coliform Rule.
Contaminants: Nitrate, Combined Uranium.
Key contaminant findings
Based on the most recent EPA sampling data for Barona North Reservation'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
Barona North Reservation's water system has 6 total violations on record, including 0 health-based violations. 1 remain unresolved. 6 violations were issued in the last 5 years.
Flood & environmental risk
San Diego 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 Sweetwater R A Dehesa, El Capitan Res Nr Lakeside, San Vicente Res Nr Lakeside, Los Coches C Nr Lakeside, San Diego R A Mast Rd Nr Santee.
Where does Barona North Reservation's water come from?
Barona North Reservation's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,171 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Sweetwater R A Dehesa (river), El Capitan Res Nr Lakeside (lake), San Vicente Res Nr Lakeside (lake), Los Coches C Nr Lakeside (river), San Diego R A Mast Rd Nr Santee (river).
What Barona North Reservation 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.
Barona North Reservation'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.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Flood & disaster history
San Diego 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.
Recommended water filters
Based on contaminants detected in Barona North Reservation'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. | 2.9 | 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. | 2.34 | 1.3 | mg/L | Inorganic | Over Limit |
Lead level trend (90th percentile)
Copper level (90th percentile)
Latest reading: 2.345 mg/L (2022)
EPA action level: 1.3 mg/L
See how Barona North Reservation compares by contaminant
Explore where Barona North Reservation ranks among all California cities for specific contaminants.
Water source & infrastructure
Where Barona North Reservation's water comes from
Barona North Reservation'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 native american ownership and serves approximately 1,171 people through 1 water system.
Water bodies near Barona North Reservation
Barona North Reservation is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Barona North Reservation
| System Name | PWSID | Population | Source |
|---|---|---|---|
| Barona North | 090600118 | 1,171 | GW |
How Barona North Reservation compares
Full California rankings →Barona North Reservation's score of 87.6/100 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 Barona North Reservation's water quality findings.
Frequently asked questions
Is Barona North Reservation, CA tap water safe to drink?
Barona North Reservation's water quality earned a grade of A- (87.6/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #206 out of 694 cities tested in California.
What contaminants are in Barona North Reservation's water?
Lead was measured at 2.9 ppb (90th percentile). 6 violations are on record.
How is Barona North Reservation'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 Barona North Reservation?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Barona North Reservation's water come from?
Barona North Reservation's water is sourced from Groundwater. The city has 1 water system serving approximately 1,171 residents.
Is Barona North Reservation's groundwater at risk of contamination?
Barona North Reservation 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 6 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 Barona North Reservation's water compare to other cities?
Barona North Reservation ranks #206 out of 694 cities in California (better than 70% of state cities) and #3962 out of 15744 cities nationally (75th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Barona North Reservation's small water system affect quality?
Barona North Reservation's system serves approximately 1,171 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 6 violations on record.