Water Quality in Tucson, AZ (85634)
EPA violation data for public water systems serving ZIP code 85634.
Active Health Violations
3 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 93% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5,038
Population
61
Water Systems
61
Violations (5yr)
3
Health-Based
Location
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Water Systems Serving This Area (61)
Tucson City Of
All resolved Groundwater 732,906 people served
6 violations (5yr)
· All resolved
Arizona Water Co - Pinal Valley
Groundwater 134,432 people served
2 violations (5yr)
Lead tested: 0 ppb (limit: 15 ppb) ✓
Epcor - San Tan
All resolved Groundwater 87,435 people served
31 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Gw Santa Cruz Water Co
1 health-based Groundwater 84,000 people served
19 violations (5yr)
· 1 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Arizona Water Co - Apache Junction
Groundwater 62,055 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Sells Intertie
Groundwater 4,000 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Greater Santa Rosa Regional
Groundwater 1,623 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
San Xavier West
All resolved Groundwater 1,511 people served
1 violation (5yr)
· All resolved
Lead tested: 0.9 ppb (limit: 15 ppb) ✓
Topawa Intertie
Groundwater 1,318 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Vaya Chin Intertie
Groundwater 1,151 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Mission View Mobile Home Park (Tucson Water Consec
Purchased groundwater 1,125 people served
0 violations
Lead tested: 1.1 ppb (limit: 15 ppb) ✓
Covered Wells Regional
Groundwater 538 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Pisinemo Intertie
Groundwater 472 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Kerwo Intertie
Groundwater 441 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Santa Rosa Village
Groundwater 438 people served
0 violations
Chui Chu
Groundwater 420 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Ak Chin Nursing Home
Groundwater 400 people served
0 violations
San Xavier Ord (East)
Groundwater 390 people served
0 violations
Lead tested: 0.7 ppb (limit: 15 ppb) ✓
Little Tucson
Groundwater 328 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Hickiwan
Groundwater 301 people served
0 violations
San Simon School And Village
Groundwater 300 people served
0 violations
Tocc
Groundwater 280 people served
0 violations
Lead tested: 1 ppb (limit: 15 ppb) ✓
San Miguel
Groundwater 275 people served
0 violations
Comobabi Intertie
1 health-based Groundwater 240 people served
1 violation (5yr)
· 1 health-based · All resolved
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Anegam
Groundwater 232 people served
0 violations
Menager'S Dam (Ali Chuk)
Groundwater 212 people served
0 violations
Nolic Intertie
Groundwater 168 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Santa Rosa Ranch Intertie
Groundwater 165 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Big Fields
Groundwater 150 people served
0 violations
Kaka
Groundwater 150 people served
0 violations
Cold Fields
Groundwater 147 people served
0 violations
San Pedro
Groundwater 135 people served
0 violations
Lead tested: 0.7 ppb (limit: 15 ppb) ✓
South Komelic
Groundwater 135 people served
0 violations
Crowhang
Groundwater 130 people served
0 violations
Vamori
Groundwater 125 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Ak Chin
Groundwater 120 people served
0 violations
North Komelic
Groundwater 120 people served
0 violations
Cowlic
Groundwater 120 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Palo Verde Stand
Groundwater 105 people served
0 violations
Fresnal
Groundwater 105 people served
0 violations
Cockleburr
Groundwater 90 people served
0 violations
Choulic
Groundwater 82 people served
0 violations
Kohatk
Groundwater 80 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Ventana
Groundwater 80 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Charco 27
Groundwater 70 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
New Fields
Groundwater 67 people served
0 violations
Lead tested: 7.1 ppb (limit: 15 ppb) ✓
Queens Well
Groundwater 64 people served
0 violations
Lead tested: 0.9 ppb (limit: 15 ppb) ✓
Cababi
Groundwater 57 people served
0 violations
Sil Nakya Community - Ptua
Unknown 51 people served
0 violations
Pia Oik
Groundwater 50 people served
0 violations
Sikul Himatk
Groundwater 40 people served
0 violations
Jackrabbit
1 health-based Groundwater 40 people served
1 violation (5yr)
· 1 health-based · All resolved
Lead tested: 1 ppb (limit: 15 ppb) ✓
Upper Covered Wells
Groundwater 40 people served
0 violations
Whitehorse Pass (Shopishk)
Groundwater 40 people served
0 violations
Gunsight (Schuchuligk)
Groundwater 40 people served
0 violations
Santa Cruz
Groundwater 35 people served
0 violations
Pan Tak
Groundwater 28 people served
0 violations
Papago Farms Cbp
Groundwater 25 people served
0 violations
San Simon
Unknown 25 people served
0 violations
Santa Rosa Subdivision
Unknown 25 people served
0 violations
San Luis
Unknown 25 people served
0 violations
Contaminants Found
Revised Total Coliform RuleHealth-Based
Missed testing deadlines — not a detection of bacteria.
4 violations
All resolved
ChlorineMonitoring
Used to disinfect water — generally safe at regulated levels.
4 violations
All resolved
ArsenicMonitoring
A naturally occurring element that can cause cancer and other health effects at high levels.
2 violations
All resolved
NitrateMonitoring
At high levels, nitrate can cause blue baby syndrome in infants.
2 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
2 violations
All resolved
TTHMMonitoring
2 violations
All resolved
Radium-226Monitoring
2 violations
All resolved
Gross Alpha, Excl. Radon and UMonitoring
2 violations
All resolved
Radium-228Monitoring
2 violations
All resolved
Combined Radium (-226 and -228)Monitoring
2 violations
All resolved
Heptachlor epoxideMonitoring
1 violation
All resolved
MethoxychlorMonitoring
1 violation
All resolved
BHC-GAMMAMonitoring
1 violation
All resolved
EndrinMonitoring
1 violation
All resolved
HeptachlorMonitoring
1 violation
All resolved
LASSOMonitoring
1 violation
All resolved
E. COLIMonitoring
1 violation
Has active
StyreneMonitoring
1 violation
All resolved
EthylbenzeneMonitoring
1 violation
All resolved
TrichloroethyleneMonitoring
1 violation
All resolved
p-DichlorobenzeneMonitoring
1 violation
All resolved
DICHLOROMETHANEMonitoring
1 violation
All resolved
o-DichlorobenzeneMonitoring
1 violation
All resolved
CHLOROBENZENEMonitoring
1 violation
All resolved
TetrachloroethyleneMonitoring
1 violation
All resolved
cis-1,2-DichloroethyleneMonitoring
1 violation
All resolved
1,1-DichloroethyleneMonitoring
1 violation
All resolved
Xylenes, TotalMonitoring
1 violation
All resolved
BenzeneMonitoring
1 violation
All resolved
1,2-DichloroethaneMonitoring
1 violation
All resolved
trans-1,2-DichloroethyleneMonitoring
1 violation
All resolved
1,1,2-TrichloroethaneMonitoring
1 violation
All resolved
1,1,1-TrichloroethaneMonitoring
1 violation
All resolved
Carbon tetrachlorideMonitoring
1 violation
All resolved
TolueneMonitoring
1 violation
All resolved
1,2-DichloropropaneMonitoring
1 violation
All resolved
1,2,4-TrichlorobenzeneMonitoring
1 violation
All resolved
Public NoticeMonitoring
1 violation
All resolved
Combined UraniumMonitoring
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jan 2023
How Does This Compare?
Tucson (85634) has more violations than 93% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 61.
Fewer violations 93th percentile More violations
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.