This system was not included in federal PFAS monitoring
FYI▾
Should I be concerned?
This system serves fewer than 3,300 people and was not required to participate in EPA UCMR5 testing. Absence of data is not the same as absence of contamination.
Federal Maximum Contaminant Level. The legally enforceable EPA drinking-water standard.
What is it?
A naturally occurring metal found in mineral deposits. Enters water through erosion of natural deposits or discharge from drilling and metal refining operations.
Why it matters
At high levels, barium can cause increased blood pressure. Levels well below the MCL of 2 mg/L are not a health concern.
What to do
No action needed at typical detection levels. Barium is rarely found near its MCL in treated drinking water.
Nitrate (as N)▸
5.55 mg/L
Reference: MCL
Federal Maximum Contaminant Level. The legally enforceable EPA drinking-water standard.
What is it?
Comes from fertilizer runoff, septic systems, and erosion of natural deposits. One of the most common groundwater contaminants in agricultural areas.
Why it matters
Nitrate above 10 mg/L can cause "blue baby syndrome" (methemoglobinemia) in infants under 6 months — it interferes with blood's ability to carry oxygen. Adults can tolerate higher levels.
What to do
If you have an infant on formula and your water is above 5 mg/L, consider using bottled water for formula preparation. Boiling water does NOT remove nitrate — it concentrates it.
What the research says
Multiple peer-reviewed studies have found neural tube defects, preterm birth, and low birth weight at concentrations as low as 5 mg/L — 2x below the US federal limit.
Federal Lead and Copper Rule action level. Legally enforceable. Exceeding it triggers required corrective action by the utility.
What is it?
Lead in drinking water almost always comes from your home's plumbing — not from the water source or treatment plant. Lead pipes, solder, and brass fixtures can leach lead, especially if water sits in pipes for hours.
Why it matters
There is no safe level of lead exposure. Even low levels can harm children's brain development, and cause kidney and blood pressure problems in adults. The action level of 15 µg/L is a regulatory trigger, not a safety threshold.
What to do
Run your tap for 30 seconds to 2 minutes before drinking, especially in the morning. Use cold water for cooking and formula — hot water leaches more lead. A filter certified to NSF/ANSI 53 for lead removal is the most reliable protection.
What the research says
There is no safe level of lead exposure. Lead crosses the placenta and causes preterm birth and cognitive impairment in children at blood lead levels below 10 µg/dL.
World Health Organization drinking-water guideline. International guidance, not legally enforced in the US.
What is it?
Naturally present in most water sources. Also increases from road salt, water softeners, and natural mineral deposits.
Why it matters
There is no federal MCL for sodium. The WHO suggests a guideline of 200 mg/L for people on sodium-restricted diets. For most people, sodium in water is a small fraction of dietary intake.
What to do
If you're on a sodium-restricted diet and your water is above 20 mg/L, talk to your doctor. For most people, no action needed.
% of limit
Other measurements
These describe characteristics of the water that aren’t health risks at typical levels — mineral content, taste, hardness, and similar.
The following measurements were extracted from this system's Consumer Confidence Report but have been flagged for verification. These values are likely extraction or unit errors and have been removed from the chart above.
Contaminant
Reported Value
Limit
Reason
Copper(selpmaS fo .oN detcelloC)
10 mg/L
1.3 mg/L
Flagged for review
TCP(Duration)
2018 ng/L
5 ng/L
Value is 403.6× the limit — likely extraction error
Think this data is correct?
Source: WOODVILLE FARM LABOR CENTER Consumer Confidence Report 2023 · Extracted by WaterScore
Measured data
Private Well Risk
Do you have or use a private well? Measured concentrations from nearby private wells sampled within 5 miles.
Details ↓
1 site within 10 mi
Nearby Superfund Sites
1 EPA Superfund site within 10 miles. Proximity does not necessarily mean your water is affected.
Details ↓
1 well
Water Sources
Visalia pumps water from one groundwater well drawing from the Central Valley aquifer system.