Contaminant Analysis
View Data SourcesColiform
BacteriaWhat is it?
Coliform bacteria are organisms found in the digestive systems of warm-blooded animals. Their presence in water indicates potential contamination from human or animal waste.
Health Risks
While total coliform itself may not cause illness, its presence signals that dangerous pathogens like E. coli, Cryptosporidium, or viruses may also be in your water supply.
How to Remove It
Bacteria require UV disinfection or certified microbial purification systems. Boiling water kills bacteria but is not a sustainable long-term solution.
Get a Certified SolutionLead
NeurotoxinWhat is it?
Lead is a toxic heavy metal that leaches from aging pipes, solder, and fixtures. It was banned from plumbing materials in 1986, but millions of older homes and water systems still contain lead service lines.
Health Risks
Even low levels of lead in blood affect IQ, attention span, and behavior in children. In adults, lead exposure causes high blood pressure, kidney damage, and reproductive problems. There is NO safe level of lead exposure.
How to Remove It
Boiling does NOT remove lead - it actually concentrates it. You need a certified NSF/ANSI 53 filter or Reverse Osmosis system to effectively remove lead from drinking water.
Get a Certified SolutionTTHM
ByproductWhat is it?
Total Trihalomethanes (TTHMs) are disinfection byproducts formed when chlorine reacts with organic matter in water. They indicate problems with water treatment or source water quality.
Health Risks
Long-term TTHM exposure is linked to bladder cancer, liver problems, and adverse reproductive outcomes. Pregnant women face increased risk of miscarriage and birth defects.
How to Remove It
Activated carbon filters effectively remove TTHMs and chlorine. A whole-house carbon filtration system provides protection at every tap in your home.
Get a Certified SolutionWhy Filtration is an Investment in Your Health
Your local water utility meets federal standards, but "legal" doesn't always mean "optimal." The contaminants listed above—even in trace amounts—can accumulate in your body over time.
Protect Your Long-Term Health
Heavy metals and synthetic chemicals found in tap water have been linked to long-term metabolic and immune system issues. Filtering at the source is your first line of defense.
Better Skin & Hair
Unfiltered water often contains chlorine and hardness minerals that strip natural oils from your skin and hair. Pure water can lead to softer skin, shinier hair, and a healthier glow.
Based on West Covina's water profile, these NSF-certified reverse osmosis systems are the most reliable way to remove the contaminants identified above. Choose the option that fits your home.
AquaTru Under Sink
High-capacity purifier with dedicated faucet for families
- ✓ Stores up to 3 gallons for on-demand access
- ✓ 4-stage Ultra Reverse Osmosis® filtration
- ✓ TruPure™ RO Sanitizer for easy sanitizing
As low as $26.25/mo with Affirm
AquaTru Carafe
"The Best Water Purifier 2025" — Esquire
- ✓ Sleek design with 64 oz. carafe
- ✓ 4-stage Ultra Reverse Osmosis® filtration
- ✓ No installation or plumbing required
As low as $27.08/mo with Affirm
AquaTru Classic
Powerful countertop purifier for clean, great-tasting water
- ✓ Easy push-button water dispenser
- ✓ 4-stage Ultra Reverse Osmosis® system
- ✓ No installation or plumbing required
As low as $33.33/mo with Affirm
✓ NSF Certified • 30-Day Money Back Guarantee • Free Shipping
Frequently Asked Questions for WEST COVINA
Does boiling water remove Lead?
NO. Boiling water actually concentrates lead levels as water evaporates. You must use a certified filter.
Is it safe to shower with Coliform bacteria?
It is generally safe for healthy adults, but avoid swallowing water. Open wounds should be covered.
What are TTHMs and where do they come from?
TTHMs (Trihalomethanes) are byproducts created when chlorine reacts with organic matter during water treatment. They're linked to cancer.
Can I absorb Lead through my skin in the shower?
Generally no, lead is tightly regulated because ingestion is the primary risk. However, avoid swallowing shower water.
Check Nearby Towns in California
How We Analyze WEST COVINA Water Quality
Official EPA Data
We source all violation records directly from the EPA's Safe Drinking Water Information System (SDWIS), the federal government's official database for public water system compliance.
Strict Grading
Our grading system prioritizes public health. We distinguish between critical contaminants (Lead, Arsenic, PFAS) and administrative violations like late paperwork - because your health matters more than bureaucracy.
Independent Analysis
We are not affiliated with any water utility, government agency, or filter manufacturer. Our analysis is independent and designed to help you make informed decisions about your family's water safety.