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PUBLIC WATER SYSTEM REPORT

Is CITY OF STOCKTON Water Safe to Drink in 2026?

California · PWSID CA3910012 · Surface water

Population served
191,302
Cities served
STOCKTON
State / jurisdiction
California (CA)
PWSID
CA3910012
F
TAP WATER GRADE
High risk
Model score 0/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
23 violation record(s) in the latest EPA SDWA quarterly snapshotPFAS above EPA MCL (UCMR5 regulated compounds)

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CONTAMINANTS — EPA UCMR5 MONITORING
Compound
Level (ppt)
EPA limit
Health guideline
Status
PFOSregulated
4.8
4 ppt
Exceeds
Above health advisory

Source: EPA UCMR5 · ppt = parts per trillion · MCL = enforceable limit for regulated PFAS

VIOLATIONS HISTORY (FEDERAL SNAPSHOT)

EPA’s national SDWA quarterly files associate 23 violation-related records with this system in the same reporting quarter as the utility snapshot used on WaterCheckup. This is not a complete historical docket — see ECHO and SDWIS for full compliance context.

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WHAT TO DO ABOUT IT

Based on CITY OF STOCKTON's monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.

TOP PICKS FOR CITY OF STOCKTON
⚠ EPA violations / contaminants in monitoring data
#1
Waterdrop G3P800 RO
EDITORS PICK
Waterdrop  ·  ~$849
Tankless 800 GPD, removes 99%+ PFAS & lead, 10-stage filtration. Smart faucet TDS display.
WHY THIS FOR CITY OF STOCKTON · Chosen for CITY OF STOCKTON because PFAS was detected at 4.8 ppt in UCMR5 — above the 4 ppt limit for some regulated compounds — and this system shows 23 violation record(s) in the latest federal snapshot. RO removes 99%+ of PFAS at the tap.
#2
Aquasana SmartFlow RO
MOST CERTIFIED
Aquasana  ·  ~$449
WQA Gold Seal + NSF 42/53/58/401. Most certifications of any under-sink RO. Removes 90+ contaminants.
#3
AquaTru Under-Sink RO
EASIEST FILTER CHANGE
AquaTru  ·  ~$375
NSF 42/53/58 certified. Quick-change filters, no tools. Compact tankless design, 4-stage filtration.
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STAY INFORMED
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