Water Quality: St. Jacob, IL
1 water system • 1,835 people served
Some ConcernsWater Quality Summary
St. Jacob is served by 1 public water system with a combined service population of 1,835 people, and has 13 EPA Safe Drinking Water Act violations on record. Critically, 2 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. St. Jacob's violation count is 55% below the national average for Illinois. Contaminants associated with violations include Stage 2 DBP, TTHM.
Contaminants Found
Trihalomethanes and haloacetic acids that increase cancer risk and may cause adverse reproductive outcomes.
Common source: Chlorine disinfection reacting with natural organic matter in source water
EPA limit: TTHM: 0.080 mg/L; HAA5: 0.060 mg/L
Total trihalomethanes are linked to increased risk of bladder cancer and adverse reproductive outcomes.
Common source: Reaction of chlorine disinfectants with naturally occurring organic matter in water
EPA limit: 0.080 mg/L (80 ppb)
Water Systems Serving St. Jacob
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| ST JACOB | IL1190950 | Surface Water | 1,835 | 13 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Illinois
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.