City of Vallejo, CA

Each year, the City of Vallejo Water Department publishes an Annual Water Quality Report, also called a Consumer Confidence Report (CCR), so customers can know what’s in their water. These reports summarize test results for the previous calendar year and show how your water quality meets, surpasses, or compares to state and federal drinking water standards. We prepare and deliver these reports, as required by law, by July 1 each year. The Vallejo Water Quality Reports are available in English, Spanish, and Tagalog. You can read more about the regulatory requirements for these reports on the State Water Resources Control Board website.

We routinely test for more than 100 chemicals and contaminants and include those results in our annual reports. These reports list only contaminants that we detect; if we test for but don't detect a contaminant, that typically means either:

• It wasn't present in the source water to begin with, or
• Our water treatment process reduced its concentration to a level below what available technologies can detect.

The Water Quality Reports are available in the Water Department Document Library. Contact us if you have any questions about these reports.

• Q: What does the Water Quality Division do?
  • A: The City of Vallejo Water Quality Division performs the sampling and testing of water throughout all stages of the water treatment process. Our staff collects and tests water weekly from all over the City, so you may even see us collecting water from one of our dedicated sample stations. We are proud to operate a laboratory that maintains State certification and accreditation under ELAP, which you can learn more about on the State Water Resources Control Board website.
    
    
• Q: My water looks/tastes unusual. What’s going on?
  •  A: If your tap water have an unusual odor or color to it, or if you have a sudden or ongoing water quality concern, please refer to “Troubleshooting Your Water”. The most common issues are addressed there. If you are experiencing any symptoms of illness, we recommend contacting your personal physician; Water Department staff are not trained medical professionals.
    
    
• Q: My water looks/tastes different from my neighbor’s water. How is that possible?
  • A: The City of Vallejo delivers high-quality water to your home through the “distribution system” – a network of pipes all over the City. While we are responsible for the maintenance of the distribution system up to and including your water meter itself, we are not responsible for your home plumbing. All pipes past your water meter are private property. If you notice a difference between your and your neighbor’s water, it’s most likely due to differences between the age and materials of your home plumbing.
    
    
• Q: Should I be concerned about lead in my tap water?
  • A: No pipes in the City’s distribution system contain lead, and therefore the water that reaches your water meter does not contain lead. However, lead can potentially leach from any pipes or fixtures that contain the metal, which are more likely in older homes. If your home was built before 1986, when lead regulations changed, and the pipes, fixtures, flux, and solder are original, they are more likely to contain lead. Homes built after 1986 are at lower risk, although the EPA allows “lead-free” plumbing materials to contain up to 0.25% lead. You can learn more about lead in drinking water on the EPA's website. Additionally, we test for lead and copper from homes throughout our service areas every three years, as required by law. If you’re interested in volunteering for this program, please contact us. Results from these triennial lead and copper studies are published in our Annual Water Quality Report, which is available in the Water Department Document Library.

• Q: Should I be concerned about any other chemicals in my tap water, like PFAS or hexavalent chromium?
  • A: The Water Department has a staff of water operators who treat Vallejo’s water and make it drinkable, removing or reducing chemical concentrations to meet or surpass state and federal drinking water standards. It’s often the case that the raw source water doesn’t even contain a chemical contaminant to begin with, so there’s nothing to remove during treatment. You can read more about drinking water regulations and contaminants on the State Water Resources Control Board website. With respect to PFAS (per- and polyfluoroalkyl substances) and hexavalent chromium, the Water Department is currently in compliance with all regulatory monitoring requirements. In 2024, we tested for – but did not detect any of – the 29 different PFAS from either the Vallejo or Lakes water treatment plants. If we detect a chemical, it will be included in our Annual Water Quality Report, available in the Water Department Document Library. If a chemical is monitored for but not detected, it may not appear in the report.
    
    
• Q: I’m interested in testing my tap water. How do I do that?
  • A: The City of Vallejo does not provide water testing services for individual customers. Our staff collects and tests water weekly from all over the City to meet or surpass all drinking water standards. The results of our testing are available in our Annual Water Quality Report, available in the Water Department Document Library. If you want to test your tap water, you should find a state-certified commercial laboratory. A map of State-certified laboratories is available on the State Water Resources Control Board website; be sure to select a lab that is labeled as “commercial” (instead of “municipal”). You may also call 916-323-3431 or email [email protected] to find a commercial lab. When you contact a state-certified lab, tell them you’re interested in home water testing.
    
    
• Q: If there is a water quality emergency, how will I be informed?
  • A: The City of Vallejo Water Department takes pride in the high quality water we produce for our consumers. In the event that water quality does not meet drinking water standards, we are required by state law to notify the public in a manner appropriate for the severity of the exceedance, and follow our Water Quality Emergency Notification Plan. For example, if E. coli were detected in any samples, within 24 hours, we would notify the State Water Board, distribute public notifications about the problem through local radio, newspaper, and social media, as well as go door-to-door in any affected areas. You can view the public notification templates that we are likely to use on the State Water Resources Control Board website; they would look similar to these. If you are experiencing any symptoms of illness, we recommend contacting your personal physician; Water Department staff are not trained medical professionals.

Does the tap water have an unusual taste or odor? You should confirm that the odor is coming from the water itself and not the drain:

• Run the tap for 2 minutes.
• Fill a clean glass with water and turn off the tap.
• Step a few feet away from the sink, and smell the water in the glass.
  • If the water in the glass does not have an odor, the problem is likely the drain. To disinfect your drain and reduce odors, you can use household/laundry bleach (handle carefully as bleach is a skin and eye irritant).
  • If the water in the glass does have an odor, select from the common odors below to continue troubleshooting.

• Chlorine, bleachy, or pool smells – We add chlorine to water to kill disease-causing microorganisms, ensuring it is safe to drink. The “chlorine residual” –  chlorine that stays in the water as it travels through the pipes – is kept as low as possible, but high enough for proper disinfection. People with strong senses of smell may be more sensitive. If the smell doesn’t go away after running your tap for a few minutes, fill a clean container with water, then cover and refrigerate it before drinking or using it for cooking; odors are less detectable in cold water and more detectable in warm or hot water.
  
  
• Earthy or grassy smells – If your water smells or tastes earthy –  like dirt, grass, or lake water – it could be coming from your drain (follow the steps listed above), or it could be the public water supply. The City of Vallejo draws water from different sources. When we change source waters, there can be an increase in organics, sometimes from algal blooms, which can contribute to an earthy taste or odor in the water. This is more likely in warm and hot weather and should go away after a few days. Earthy, grassy, or algal tastes and odors do not pose a health risk. The water produced by the City of Vallejo Water Department meets or surpasses state and federal drinking water standards. To make the water more palatable, fill a clean container with water, then cover and refrigerate it before drinking or using it for cooking; odors are less detectable in cold water and more detectable in warm or hot water.
  
  
• Rotten eggs, sulfurous, garbage-like, or sewage smells – If your water smells anything like these things, confirm that the odor is not coming from your drain (follow the steps listed above). Then, check if the smell is noticeable in either cold water or hot water. If the smell is noticeable when the tap is running cold water, but not in a glass of cold water, the odor is probably coming from the drain (consider disinfecting your drain with household/laundry bleach, as described above). If the smell is noticeable in hot water, then your water heater may need service. Call a plumber and ask them about water heater flushing or disinfection.

Does the tap water have an unusual color, or is it cloudy? To perform this troubleshooting, you’ll need to:

• Get a clean glass and make sure the room is well lit.
• Run the tap for 2 minutes.
• Fill the clean glass with water and turn off the tap.
• Observe the glass of water in good lighting to check for unusual aesthetics, and refer to the list below for common appearance concerns.

• White streaks, crystals, or residue on fixtures or dishes – These are most likely due to non-hazardous and naturally-occurring calcium and magnesium carbonates. These minerals, also called scale, are normally dissolved in the water, but can be left behind when water evaporates, especially on dishes in the heated-dry dishwasher setting. You can remove these minerals with white vinegar. The concentration of these minerals in water is referred to as water hardness. Our Annual Water Quality Report, available in the Water Department Document Library, includes data on the hardness of your water. On average, both the Vallejo and Lakes service areas’ water is on the low end of hard water, often around 130 milligrams per liter (or parts per million).
  
  
• Cloudy, bubbly, or milky white water – Air can dissolve in water (just like salt or sugar). When that happens, the water can appear cloudy or full of very tiny bubbles. The quality of your water is unaffected by this dissolved air. Let the glass of water stand for a few minutes. If the cloudiness is due to air in your water, the bubbles will rise to the surface and the water should clarify from the bottom up.
  
  
• Rusty, reddish, orange, yellow, or brown water – Tap water that is pale yellow, reddish, orange, or brown in color is often due to iron rust from your home plumbing or possibly the water main. Iron is regulated as a non-hazardous substance in drinking. If you find the taste or look unpleasant, you can run your tap until the water is clear. If the discolored water is present only in the first few minutes of running the tap, the rust is likely from your home plumbing. If the discolored water does not clear after an additional few minutes of running the tap, try running your front yard hose bib, if you have one, since it’s closer to the water main. After a few minutes, if the water flowing from the hose bib is still discolored, the problem could be a water main. If this is the case, please contact us at 707-648-4307.
  
  
• Blue or green water – Although rare, tap water that is blue, green, or blue-green in color can result from corrosion of copper pipes in your home plumbing, if you have any. Copper is a potential health hazard in drinking water; we follow strict corrosion control regulations as part of our water treatment process, to ensure the water that reaches your home isn’t corrosive enough to leach copper from any home plumbing which may include copper pipes. Since the water entering your home is likely not corrosive, any copper corrosion could instead be the result of your home electrical system being grounded to your home plumbing. If this issue persists and is not resolved by flushing your taps, call a plumber and describe the issue.

Lead is not in the drinking water that we produce at our water treatment plants. If water flows through pipes or plumbing materials that are made of lead, however, it can pick up some of that lead. None of the City-owned pipes in the water distribution system contain lead, and therefore the water that reaches your water meter does not contain lead.

Water “service lines” are the pipes that connect the water main to your water meter, and the water meter to your home. The City is responsible for the water main and service line up to your water meter. The service line and plumbing past your meter are private property, and not the City’s responsibility (see Diagram 1). The City cannot control the variety of materials used in your home plumbing components. If your home was built before 1986 (when lead regulations changed) and the pipes, fixtures, flux, and solder are original, they are more likely, but not certain, to contain lead. To prevent lead exposure, the City of Vallejo, like all public water systems, follows several regulatory requirements:

(1) Corrosion Control - During treatment, the water undergoes different processes to ensure the water is not too corrosive and does not leach metals (like lead or copper) from your home plumbing.

(2) Lead and Copper Sampling - Every three years, we collect water samples from homes throughout our service areas with the help of residents who volunteer to participate. These samples are tested for lead and copper, to ensure the corrosion control treatment is effective. Our Water Quality Report, available in the Water Department Document Library, contains the results of the most recent triennial lead and copper study.

(3) Service Line Inventory - Throughout 2025 and 2026, the City will be inspecting and identifying customer-side service lines to assess whether any lead service lines exist, and then revising the service line inventory. You can find the service line inventories for both the Vallejo and Lakes Water Service Areas, and read more about the ongoing inspection process in this document, found in the Water Department Document Library.

• EPA.gov/safewater - U.S. Environmental Protection Agency webpage with links to various topics such as the basics of drinking water and the associated regulations. 
  
  
• EPA.gov/lead - U.S. Environmental Protection Agency webpage with links to information about lead, including basic information, how to reduce lead exposure, and more. 
  
  
• Waterboards.ca.gov/drinking_water/certlic/drinkingwater/Chemicalcontaminants.html - California Environmental Protection Agency webpage that discusses drinking water contaminants, how they are regulated, and related information.