Drinking Water Systems

If you rely on a private well in the North Bay, you already know that unfiltered water can become smelly, cloudy, or unpleasant, and may even pose health risks. Contaminants like bacteria, sediment, heavy metals, and chemicals can compromise your water quality.

Annual testing is essential for well owners. At Ongaro & Sons, we work with certified third-party labs to test your water and recommend effective water filtration and treatment systems tailored to your needs. Our team will help you find the right solution to ensure your drinking water is safe and great-tasting, whether you are in Santa Rosa, Bodega Bay, San Rafael, Novato, Glen Ellen, or a surrounding community of Marin, Sonoma, and Napa counties.

Concerned About Your City Water?

Even if you’re connected to a municipal water supply, contamination can still be a concern. City water typically comes from lakes, rivers, or groundwater, and though treated to meet EPA standards, it may contain trace chemicals or pollutants introduced through:

• Corroding infrastructure or old pipes
• Stormwater runoff or flooding
• Overuse of chlorine or other disinfectants

Municipalities are required to provide annual water quality reports, but if you notice odd smells, taste changes, or discoloration, it’s worth taking a closer look at your home’s water quality.

Do You Have “Forever Chemicals” in Your Drinking Water?

PFAS (Per- and polyfluoroalkyl substances), commonly known as “forever chemicals,” are an emerging threat found in both well and municipal water supplies. These chemicals don’t break down in the environment and have been linked to health issues, including:

• Elevated cholesterol
• Liver damage
• Increased risk of kidney cancer
• Hormonal changes and reproductive effects

PFAS can enter the water supply through industrial runoff, firefighting foams, and even consumer products. A high-quality drinking water system, especially one using activated carbon or reverse osmosis, can significantly reduce your exposure.

There is no one-size-fits-all filter. The best solution depends on what’s in your water:

Sediment Filtration

If your water appears cloudy or has visible particles, you’re likely dealing with sediment such as silt, rust, or sand, especially common in well systems. These particles can clog fixtures, wear down appliances, and make water unpalatable. A whole-house sediment filtration system traps these materials at the point of entry, protecting your plumbing system and improving water clarity throughout the home. For enhanced protection, we often pair this with a point-of-use drinking water system at the kitchen sink, ensuring the water you consume is both clean and refreshing.

UV Disinfection Systems

Ultraviolet (UV) disinfection is a highly effective, chemical-free method for neutralizing bacteria, viruses, and other pathogens in your water supply. It’s especially beneficial for well owners or homes in areas where microbiological contamination is a concern. These systems use high-intensity UV light to destroy the DNA of microorganisms, rendering them harmless. UV disinfection works best when paired with pre-filtration systems, which remove particles that could block the light. It's a safe and low-maintenance solution for ensuring your family has access to microbiologically safe drinking water year-round.

Reverse Osmosis and Carbon Filters

Reverse osmosis (RO) systems are among the most thorough water purification technologies available for home use. Typically installed under the kitchen sink, these systems can remove up to 99% of contaminants such as arsenic, lead, nitrates, fluoride, chlorine byproducts, and even PFAS (forever chemicals). In combination with carbon filtration, which targets bad tastes, odors, and chemical residues, these systems are perfect for families who want ultra-clean water specifically for drinking and cooking. They're compact, highly effective, and an excellent final line of defense for your home's water quality.