CSA 70-F MORONGO
SAN BERNARDINO, CA · 300 people served · EPA PWSID CA3600226
CSA 70-F MORONGO (SAN BERNARDINO, CA), which serves about 300 people, has recorded 1 health-based drinking-water contaminant in EPA violation records since 2016, most notably Uranium. Its most recent lead 90th-percentile sample was 0.0 ppb, within the 15 ppb federal action level. A certified water filter can reduce these at the tap — see the certified options for each below.
What the testing found
Measured levels from EPA violation records, compared to the federal limit (MCL). The black line marks the legal limit.
Uranium
Over limitNaturally occurring radioactive metal; MCL 30 ug/L. Kidney toxicity and cancer risk. Common in western groundwater.
Lead
Not detectedNo safe level. Damages developing brain/nervous system in children; linked to lower IQ, kidney and cardiovascular harm in adults. Usually enters water from corroding pipes/solder, not the source.
What to do about it
A certified point-of-use filter is the most direct fix for most of these contaminants. Match the filter to what's actually in your water — a filter certified for lead may do nothing for PFAS or fluoride.
Want certainty about your tap specifically (not just the system)? A certified mail-in lab test is the gold standard — system-wide records can differ from your home's plumbing. Some links above are affiliate links — see our disclosure.
Sources & method. Contaminant levels and violations come from EPA's Safe Drinking Water Information System (health-based violations, 2016–present); PFAS from EPA UCMR5 monitoring (2023–2025). Levels shown are the highest recorded value in the violation records; a violation means the contaminant exceeded its federal limit at the system level. Your home's water can differ from the system average. Public domain data; we are not affiliated with the EPA.