Is Silverbell, AZ Tap Water Safe to Drink?
Graded A, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
92.8/100
waterverge.com Silverbell, AZ — Water Quality Report
Silverbell's drinking water received a grade of A (92.8 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 3,128 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 39 violations on record, including 0 health-based violations. 5 remain unresolved.
What to know about Silverbell's water
Silverbell ranks #19 out of 292 cities in Arizona for water quality, placing it one of the best in the state.
Silverbell 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, Silverbell may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Silverbell, AZ water safe to drink?
Silverbell's drinking water has significant quality concerns based on EPA testing data. With a grade of A (92.8/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 3,128 residents using groundwater (wells).
Recent water quality updates for Silverbell
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Silverbell's water quality assessment. Grade: A (92.8/100).
Contaminants: Lead and Copper Rule.
Contaminants: Consumer Confidence Rule.
Contaminants: Total Haloacetic Acids (HAA5), TTHM.
Federal disaster declaration (FEMA DR-3241). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-977). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Silverbell's water supply.
Well within EPA limits.
Violation history
Silverbell's water system has 39 total violations on record, including 0 health-based violations. 5 remain unresolved.
Flood & environmental risk
Pinal County has experienced 7 federally declared disasters since 1966. 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 Gila River.
Where does Silverbell's water come from?
Silverbell's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 3,128 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Gila River (river).
What Silverbell residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Silverbell'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.
Silverbell'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
Drought conditions
D2 — severe droughtPima County is currently in D2 (severe drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Pinal County has experienced 7 federally declared disasters since 1966. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
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 Silverbell compares by contaminant
Explore where Silverbell ranks among all Arizona cities for specific contaminants.
Water source & infrastructure
Where Silverbell's water comes from
Silverbell'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 local government ownership and serves approximately 3,128 people through 1 water system.
Water bodies near Silverbell
Silverbell is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Silverbell
| System Name | PWSID | Population | Source |
|---|---|---|---|
| GW OCOTILLO WATER - RANCHO DEL SOL LINDO | AZ0410173 | 3,128 | GW |
How Silverbell compares
Full Arizona rankings →Silverbell's score of 92.8/100 is above the average of 42/100 among major Arizona cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Arizona rankings →About Silverbell, AZ
Wikipedia →Maricopa is a city in the Gila River Valley in Pinal County, Arizona, United States. With 76,654 residents as of 2024, Maricopa is the largest incorporated municipality in Pinal County.
Learn more about your water
Guides and resources related to Silverbell's water quality findings.
Explore water quality across Pima
Frequently asked questions
Is Silverbell, AZ tap water safe to drink?
Silverbell's water quality earned a grade of A (92.8/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #19 out of 292 cities tested in Arizona.
What contaminants are in Silverbell's water?
Lead was measured at 0.0 ppb (90th percentile). 39 violations are on record.
How is Silverbell'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 Silverbell?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Silverbell's water come from?
Silverbell's water is sourced from Groundwater. The city has 1 water system serving approximately 3,128 residents.
Is Silverbell's groundwater at risk of contamination?
Silverbell 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 39 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 Silverbell's water compare to other cities?
Silverbell ranks #19 out of 292 cities in Arizona (better than 93% of state cities) and #1107 out of 15744 cities nationally (93th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Silverbell's small water system affect quality?
Silverbell's system serves approximately 3,128 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 39 violations on record.