Is Hume, CA Tap Water Safe to Drink?
Graded B+, with 1 unresolved violation on record. See what was cited — and what it means for your tap. What to do next ↓
80.3/100
waterverge.com Hume, CA — Water Quality Report
Hume's drinking water received a grade of B+ (80.3 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,519 residents using surface water.
Lead levels were measured at 15.0 ppb (90th percentile), which is within EPA limits but above recommended levels. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 4 violations on record, including 3 health-based violations. 1 remains unresolved.
What to know about Hume's water
Hume ranks #367 out of 694 cities in California for water quality, placing it below average 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.
While lead levels are within EPA limits, they are above the recommended 5 ppb threshold that health organizations consider ideal. A point-of-use filter adds an extra layer of protection.
As a small community water system, Hume may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Hume, CA water safe to drink?
Hume's tap water meets most EPA standards but has areas that warrant attention. With a grade of B+ (80.3/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,519 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Hume
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Hume's water quality assessment. Grade: B+ (80.3/100).
Federal disaster declaration (FEMA DR-3592). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4683). Flood event — may have impacted local water infrastructure.
1 health-based. Contaminants: Surface Water Treatment Rule.
2 health-based. Contaminants: Coliform (TCR), Surface Water Treatment Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Hume's water supply.
Within EPA limits but above the American Academy of Pediatrics recommended level of 1 ppb. An NSF 53-certified filter provides additional protection.
Violation history
Hume's water system has 4 total violations on record, including 3 health-based violations. 1 remain unresolved.
Flood & environmental risk
Fresno County has experienced 7 federally declared disasters since 1969. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.
Where does Hume's water come from?
Hume's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 1,519 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment.
What Hume 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.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Hume'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
Fresno County has experienced 7 federally declared disasters since 1969. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Hume'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. | 15.0 | 15 | ppb | Inorganic | Near Limit |
Lead level trend (90th percentile)
See how Hume compares by contaminant
Explore where Hume ranks among all California cities for specific contaminants.
Water source & infrastructure
Where Hume's water comes from
Hume'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 private ownership and serves approximately 1,519 people through 1 water system.
Water systems serving Hume
| System Name | PWSID | Population | Source |
|---|---|---|---|
| HUME LAKE CHRISTIAN CAMPS, INC | CA1010013 | 1,519 | SW |
How Hume compares
Full California rankings →Hume's score of 80.3/100 is above the average of 57/100 among major California cities. It outscores 8 of 10 nearby cities.
Nearby cities
View California rankings →About Hume, CA
Wikipedia →Hume is an unincorporated community in Fresno County, California. It is located 50 miles (80 km) east of Fresno, at an elevation of 5344 feet. Hume is located in the 93628 ZIP Code, in area code 559.
Learn more about your water
Guides and resources related to Hume's water quality findings.
Explore water quality across Fresno
Frequently asked questions
Is Hume, CA tap water safe to drink?
Hume's water quality earned a grade of B+ (80.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #367 out of 694 cities tested in California.
What contaminants are in Hume's water?
Lead was measured at 15.0 ppb (90th percentile). 4 violations are on record.
How is Hume'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 Hume?
While lead levels are within EPA limits, a filter adds extra protection. Based on current data, basic filtration should suffice for additional peace of mind.
Where does Hume's water come from?
Hume's water is sourced from Surface water. The city has 1 water system serving approximately 1,519 residents.
What health violations has Hume's water system had?
Hume has 3 health-based violations on record. The most recent violation was recorded in January 1993. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 1 violation remains unresolved.
How does Hume's water compare to other cities?
Hume ranks #367 out of 694 cities in California (better than 47% of state cities) and #7929 out of 15744 cities nationally (50th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Hume's small water system affect quality?
Hume's system serves approximately 1,519 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 4 violations on record.