Real Time Water Quality in San Jose, California is
Daily TDS 589 ppm, Weekly TDS 585 ppm

TDS [Total Dissolved Solids] [ppm] is used worldwide as the standard for determining water quality. Typically, higher the TDS the more contaminants are in the water. Whether we live in or planning to move to San Jose, California, we would like to know if drinking tap water is safe* or is the water hard.

Daily water quality

Weekly water quality

City water in San Jose, California

Water Quality – TDS (ppm)

Daily Water Temperature ℉

* TDS means Total Dissolved Solids in Water.

** Based on the data collected from the TDSBots installed in San Jose, California

The water quality in San Jose, California is generally considered to be safe and in compliance with federal and state regulations. The local water utility responsible for the area is San Jose Water Company, which ensures the provision of clean and safe drinking water to the citizens.

Key Points about San Jose's Water Quality:

Source: The water in San Jose comes from a combination of groundwater sources, surface water sources (such as rivers and reservoirs), and imported water from various water agencies.
Testing and Standards: The San Jose Water Company conducts regular and stringent testing to ensure the water meets or exceeds standards set by the U.S. Environmental Protection Agency (EPA) and the California Department of Public Health (CDPH). These tests monitor a wide array of quality parameters, including microbial content, chemical pollutants, and turbidity levels.
Water Hardness: San Jose's water is considered to be moderately hard, characterized by higher levels of minerals like calcium and magnesium. While not harmful to health, this hardness can contribute to the buildup of scale in plumbing over time, which can affect water flow and the longevity of appliances.
Common Concerns: Some residents have raised concerns about the taste and odor of the water, which can occasionally be affected by the natural mineral content or by treatment processes. Additionally, there have been isolated reports of lead and copper levels exceeding recommended levels in older homes with outdated plumbing systems. It's advisable for residents in such homes to get their water tested.

To ensure the best possible quality of tap water and protect against any potential contaminants, residents of San Jose are encouraged to use water purifiers and water softeners. These systems can help remove unwanted minerals and impurities, providing cleaner and more palatable drinking water for their households.

Check water quality in another city or zip code

Get Involved. Take Action

Contact Your Local Elected Official & Water Supply Company

One of the best ways for cleaner water is to talk to elected officials who have a say in water quality. Ask questions and demand actionable plans for healthier water.

Filter Out Contaminants

Check out different water filters to protect your water against the detected contaminants.

Which water purifier to get for San Jose, California?


Types of filters	GAC & Carbon	Micro filter	Ultra filter	Nano filter	Reverse Osmosis filter
Particle size filtered	> 10 Microns	10 to 0.1 Microns	0.1 to 0.01 Microns	0.01 to 0.001 Microns	< 0.0001 Microns

Common Suspended Compounds
Sediments
Pollen
Giardia Cysts
Bacteria, Algae
Yeast Cells
Asbestos fibers
Blue Indigo Dye
Cryptosporidium
MicroPlastics	Some
PFAs -polyfluoroalkyl substances	Some
Arsenic, Lead, Cadmium, Mercury
Haloacetic acids (HAA5/HAA9)
Total trihalomethanes (TTHMs)
Viruses			Some
Colloidal Silica			Some

Common Dissolved solids
1,1-Dichloroethane
Tetrachloroethylene (perchloroethylene)
Trichloroethylene
Pesticides and Herbicides	Some	Some
Synthetic Dyes
Bromide	Some	Some	Some	Some
Bromochloromethane	Some	Some	Some	Some
Hardness				Some
Aqueous Salts				Some
Endocrine disruptors				Some
Nitrate & nitrite				Some
1,4-Dioxane				Some
Aluminum				Some
Barium				Some
Chromium (total)				Some
Fluoride				Some
Manganese				Some
Molybdenum				Some
Selenium				Some
Strontium				Some
Trichlorofluoromethane				Some
Uranium, combined (pCi/L)				Some

What do we do? How do we help?

We have developed the TDSBot, an inexpensive IOT device that monitors, in real time, the Incoming and Outgoing TDS levels, temperature, flow rate and cumulative volume of water filtered. Easy to install, it works with all water purifiers including, sediment, GAC, Carbon, Micro, Ultra, Nano and Reverse Osmosis water filters. Key benefits:

Know the incoming and filtered water quality in real time.
Know the volume of water filtered by day, week, month and total.
Know in advance when to change filter cartridges. Too often we tend to realize that they need changing after the water purifier has stopped working or worse, when the water smells bad.
Change filters only when needed. Sometimes filters perform longer than their standard life due to better incoming water or lower usage. Reduce waste and save money.
Quality data collected is aggregated to show real time water quality data to all the community.

TDSBot can be installed on water purifiers from Pentair, Culligan, 3M, Brita, BWT, iSpring, and most other brands. Supports sediment, GAC, Micro, Ultra, Nano and Reverse osmosis filters. It can remotely monitor filters attached to Coffee machines, Ice makers, soda fountains, water dispensers, ovens, laundry & dish washing, car wash found at Cafes, convenient stores, healthcare facilities, hotels, offices, restaurants, colleges, schools, hydroponic systems, and many more.

Ensure safe and healthy drinking water

Sustainability Impact Insights

TDSBot can generate a variety of sustainability data, including water usage metrics, identify areas of reducing water waste, leak detection and prevention, extend filter and equipment lifespan, predictive maintenance alerts to extend equipment life and reduce environmental impact.

Sustainability data can be easily showcased on your corporate website or publicly shared on your social media

Learn About Water Quality

* A definition specific to a few codes is that “Safe drinking water” means water that meets all primary and secondary drinking water standards. Drinking water standards are set based on potential health impacts and also take into account the cost to meet the drinking water standard. Also, the U.S. Environmental Protection Agency (EPA) defines drinking water as safe when humans can drink it with low risk of immediate or long-term harm to your health. Although there may be health risks associated with certain contaminants found in drinking water not all contaminants are necessarily harmful.