Is Monrovia Tap Water Safe to Drink? (2023)

Can You Drink Tap Water in Monrovia?

Yes, Monrovia's tap water is generally considered safe to drink as Monrovia has no active health based violations of the Safe Drinking Water Act (SDWA) that we are aware of. Other factors such as lead piping in a home, or low levels of pollutants on immunocompromised individuals, should also be considered, however. To find more recent info we might have, you can check out our boil water notice page or the city's water provider website.

According the EPA’s ECHO database, from April 30, 2019 to June 30, 2022, Monrovia's water utility, Monrovia-City, Water Dept, had 0 violations of the Safe Drinking Water Act. For more details on the violations, please see our violation history section below. This assessment is based on the Monrovia-City, Water Dept water system, other water systems in the city may have different results.

While tap water that meets the EPA health guidelines generally won’t make you sick to your stomach, it can still contain regulated and unregulated contaminants present in trace amounts that could potentially cause health issues over the long-run. These trace contaminants may also impact immunocompromised and vulnerable individuals.

The EPA is reviewing if it’s current regulations around pollutant levels in tap water are strict enough, and the health dangers posed by unregulated pollutants, like PFAS.

Monrovia Tap Water Safe Drinking Water Act Violation History - Prior 10 Years

Below is a ten year history of violations for the water system named Monrovia-City, Water Dept for Monrovia in California. For more details please see the "What do these Violations Mean?" section below.

Is there Lead in Monrovia Water?

Based on the EPA’s ECHO Database, 90% of the samples taken from the Monrovia water system, Monrovia-City, Water Dept, between sample start date and sample end date, were at or below, 0.0 mg/L of lead in Monrovia water. This is 0% of the 0.015 mg/L action level. This means 10% of the samples taken from Monrovia contained more lead.

While Monrovia water testing may have found 0.0 mg/L of lead in its water, that does not mean your water source has the same amount. The amount of lead in water in a city can vary greatly from neighborhood to neighborhood, or even building to building. Many buildings, particularly older ones, have lead pipes or service lines which can be a source of contamination. To find out if your home has lead, we recommend getting you water tested.

No amount of lead in water is healthy, only less dangerous. As lead accumulates in our bodies over time, even exposure to relatively small amounts can have negative health effects. For more information, please check out our Lead FAQ page.

Are there PFAS in Monrovia Tap Water?

Currently, testing tap water for PFAS isn’t mandated on a national level. We do have a list of military bases where there have been suspected or confirmed leaks. There appears to be at least one military base - AZUSA CA NCCOSC MORRIS DA - near Monrovia with suspected leaks.

With many potential sources of PFAS in tap water across the US, the best information we currently have about which cities have PFAS in their water is this ewg map, which you can check to see if Monrovia has been evaluated for yet.

Our stance is better safe than sorry, and that it makes sense to try to purify the tap water just in case.

What do these Violations Mean?

Safe Drinking Water Act Violations categories split into two groups, health based, and non-health based. Generally, health based violations are more serious, though non-health based violations can also be cause for concern.

Health Based Violations

  1. Maximum contaminant levels (MCLs) - maximum allowed contaminant level was exceeded.
  2. Maximum residual disinfectant levels (MRDLs) - maximum allowed disinfectant level was exceeded.
  3. Other violations (Other) - the exact required process to reduce the amounts of contaminants in drinking water was not followed.

Non-Health Based Violations

  1. Monitoring and reporting violations (MR, MON) - failure to conduct the required regular monitoring of drinking water quality, and/or to submit monitoring results on time.
  2. Public notice violations (Other) - failure to immediately alert consumers if there is a serious problem with their drinking water that may pose a risk to public health.
  3. Other violations (Other) - miscellaneous violations, such as failure to issue annual consumer confidence reports or maintain required records.

SDWA Table Key

Field Description
Compliance Period Dates of the compliance period.
Status Current status of the violation.
  • Resolved - The violation has at least one resolving enforcement action. In SDWIS, this indicates that either the system has returned to compliance from the violation, the rule that was violated was no longer applicable, or no further action was needed.
  • Archived - The violation is not Resolved, but is more than five years past its compliance period end date. In keeping with the Enforcement Response Policy, the violation no longer contributes to the public water system's overall compliance status. Unresolved violations are also marked as Archived when a system ceases operations (becomes inactive).
  • Addressed - The violation is not Resolved or Archived, and is addressed by one or more formal enforcement actions.
  • Unaddressed - The violation is not Resolved or Archived, and has not been addressed by formal enforcement.
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Health-Based? Whether the violation is health based.
Category Code

The category of violation that is reported.

  • TT - Treatment Technique Violation
  • MRDL - Maximum Residual Disinfectant Level
  • Other - Other Violation
  • MCL - Maximum Contaminant Level Violation
  • MR - Monitoring and Reporting
  • MON - Monitoring Violation
  • RPT - Reporting Violation

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Code A full description of violation codes can be accessed in the SDWA_REF_CODE_VALUES (CSV) table.
Contaminant Code A code value that represents a contaminant for which a public water system has incurred a violation of a primary drinking water regulation.
Rule Code Code for a National Drinking Water rule.
  • 110 - Total Coliform Rule
  • 121 - Surface Water Treatment Rule
  • 122 - Long Term 1 Enhanced Surface Water Treatment Rule
  • 123 - Long Term 2 Enhanced Surface Water Treatment Rule
  • 130 - Filter Backwash Rule
  • 140 - Ground Water Rule
  • 210 - Stage 1 Disinfectants and Disinfection Byproducts Rule
  • 220 - Stage 2 Disinfectants and Disinfection Byproducts Rule
  • 230 - Total Trihalomethanes
  • 310 - Volatile Organic Chemicals
  • 331 - Nitrates
  • 332 - Arsenic
  • 333 - Inorganic Chemicals
  • 320 - Synthetic Organic Chemicals
  • 340 - Radionuclides
  • 350 - Lead and Copper Rule
  • 410 - Public Notice Rule
  • 420 - Consumer Confidence Rule
  • 430 - Miscellaneous
  • 500 - Not Regulated
  • 111 - Revised Total Coliform Rule
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Rule Group Code Code that uniquely identifies a rule group.
  • 120 - Surface Water Treatment Rules
  • 130 - Filter Backwash Rule
  • 140 - Groundwater Rule
  • 210 - Stage 1 Disinfectants and Disinfection Byproducts Rule
  • 220 - Stage 2 Disinfectants and Disinfection Byproducts Rule
  • 230 - Total Trihalomethanes
  • 310 - Volatile Organic Chemicals
  • 320 - Synthetic Organic Chemicals
  • 330 - Inorganic Chemicals
  • 340 - Radionuclides
  • 350 - Lead and Copper Rule
  • 400 - Other
  • 500 - Not Regulated
  • 110 - Total Coliform Rules
  • 410 - Public Notice Rule
  • 420 - Consumer Confidence Rule
  • 430 - Miscellaneous
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Rule Family Code Code for rule family.
  • 100 - Microbials
  • 200 - Disinfectants and Disinfection Byproducts Rule
  • 300 - Chemicals
  • 400 - Other
  • 500 - Not Regulated
show details

For more clarification please visit the EPA's data dictionary.


Is Monrovia Tap Water Safe to Drink? ›

It is important to note that the City's drinking water remains safe to use and consume. The water, which is sampled and tested weekly, continues to be compliant with all standards set forth by both the EPA and State Department of Drinking Water.

Where does Monrovia get water from? ›

We draw our water supply from multiple aquifers within the Main San Gabriel Basin beneath the San Gabriel Valley. From there, water is pumped into our wells and sent to water treatment facilities to ensure the highest water quality is achieved.

What state has the cleanest tap water? ›

The top 10 states with the cleanest water in 2021 are:
  • Minnesota.
  • New Hampshire.
  • Connecticut.
  • Vermont.
  • Kansas.
  • Missouri.
  • Oregon.
  • Massachusetts.
Mar 11, 2022

What days can you water in Monrovia? ›

Current watering restrictions: Every fourth day between the hours of 6 p.m. and 8 a.m. the following day for no more than 15 minutes.

Can you drink tap water in Modesto CA? ›

The City of Modesto works diligently to assure that public drinking water is safe for human consumption by addressing emerging environmental issues and complying with drinking water regulations developed by the Environmental Protection Agency (EPA).

How do you water Monrovia? ›

Water deeply and less frequently

Aim for moist soil 5 to 6 inches below the surface. If soil surface is really dry, water may puddle or run off. Start slowly, and once the top few inches are moist, the water will be absorbed more easily.

What city in the US has the worst tap water? ›

1. Midland, Texas. Midland's drinking water contains 16 contaminants with levels above acceptable health limits, as well as 30 contaminants of potential concern. The arsenic level exceeds the legal limit, and the total trihalomethanes exceed 270 times the recommended health limit.

What place in the US has the worst tap water? ›

States with the worst tap water in the U.S.

Arizona: Not only is water scarce In Arizona, but a recent study shows that Phoenix tap water has the highest average levels of chromium-6 as well as PFAS (polyfluoroalkyl substances) .

Who has the best water in USA? ›

Number of Water Quality Violations by State
#StateNumber of Water Quality Violations
2District of Columbia7
47 more rows

Can I water at 2pm? ›

The best time to water plants is in the morning or evening.

If you water in the afternoon, especially during summer, the heat and sun are at their peak and the plant's water will evaporate instead of absorbing into the soil and roots.

Is it illegal to water your lawn in California? ›

As of June 10, 2022, a new state regulation bans the irrigation of decorative or non-functional grass with potable water in commercial, industrial and institutional settings. The regulation applies to turf that is ornamental and not used for recreation.

Are there water restrictions in LA County? ›

Watering restrictions implemented in June 2022 in parts of LA, San Bernardino and Ventura counties were lifted after a conveyor belt of winter storms soaked California.

Where is the cleanest tap water in California? ›

According to the 31st annual Berkeley Springs International Water Tasting event in West Virginia, two California water districts provide the best tap water in America, but neither are in the Bay Area. The Metropolitan Water District of Southern California finished first and Santa Ana, California, took second.

Should you drink tap water in California? ›

In summary, LA tap water is legally safe to drink but to be on the safe side, an active carbon filter such as EcoPro could be used. EcoPro removes THMs and reduces Arsenic and Chromium 6 by 40-70%.

Can I drink hotel tap water California? ›

Yes, you can drink sink water in Los Angeles.

However, it's best to drink only from kitchen sinks and hotel sinks when you know that the water is safe. Other sinks, like bathroom sinks, may use fixtures made from harmful metals that leach into your tap water, so they're not necessarily safe.

How do you care for Monrovia? ›

These plants thrive on low amounts water. Full sun + low water = Monrovia Dwarf Euryops and Lavender Trailing Lantana for me. Low water does not have to mean pricky cactus! I add these two low maintenance plants to my garden every year.

Should I water my plants with bottled water? ›

While watering your yard plants with bottled water may be impractical, using bottled spring water for your indoor plants will make a big difference for them. To give your plants the absolute best, rainwater and bottled spring water are your best options. Any water containing sugar or salt will hurt them!

How long does it take for Monrovia to grow? ›

It can take up to 10 years for a plant to be ready.

Is rain water no longer safe to drink? ›

Rainwater can carry bacteria, parasites, viruses, and chemicals that could make you sick, and it has been linked to disease outbreaks. The risk of getting sick from rainwater may be different depending on your location, how frequently it rains, the season, and how you collect and store the rainwater.

Is bottled water Safer Than tap water? ›

Overall, both tap and bottled water are considered good ways to hydrate. However, tap water is generally a better option, as it's just as safe as bottled water but costs considerably less and has a much lower environmental impact.

How would you know if your water was not safe? ›

Often county health departments will help you test for bacteria or nitrates. If not, you can have your water tested by a state certified laboratory. You can find one in your area by calling the Safe Drinking Water Hotline at 800-426-4791 or visiting

What city has the cleanest sink water? ›

Cities with the Best Tap Water
  • Silverdale, Washington. Silverdale's water comes from an aquifer in Green Mountain.
  • Oklahoma City, Oklahoma. Oklahoma City's Water comes from man-made lakes. ...
  • Louisville, Kentucky. The water comes from the Ohio River and is filtered through sand and gravel.
  • Macon, Georgia. ...
  • Memphis, Tennessee.
Nov 29, 2022

What city has the tastiest tap water? ›

Berkeley Springs Purified Water from Berkeley Springs, West Virginia also placed first in the world. The only category where the U.S. didn't bring home a gold or silver for best in show, was for best packaging.

Who has the cleanest water in the world? ›

Norway. Norway is known for many unique features, and clean water is no exception. In a study published by the World Bank in 2021, Norway was found to have the cleanest water in the world.

Where is tap water the safest? ›

The Quality of Drinking Water Around the World

The European countries, including the United Kingdom, score a perfect 100, meaning the local tap water is the safest in the world to drink.

Where is the purest water on earth? ›

While there are a few places that boast extremely clean water, such as Canada, Iceland, Antarctica, or even Upstate New York, the team of scientists determined that the cleanest water in the world was in the Patagonia region of Chile, Puerto Williams.

What is the #1 water in the world? ›

Over 97 percent of the earth's water is found in the oceans as salt water.

What of bottled water in the USA is actually tap water? ›

Most bottled water is actually tap water—about sixty four percent by some estimates. Many bottled water brands simply repackage tap water, and make a killing on it. Coca-Cola owns Dasani, PepsiCo owns Aquafina and LIFEWTR, Nestle owns PureLife and Poland Spring, among others.

Is it better to water once or twice a day? ›

Uniformly applying water helps the soil absorb the water at its own pace. Watering every day is not advised. It should be done 2 to 3 times per week only to prevent a shallow root system. If possible, water during the early morning hours to ensure that the lawn dries entirely before nightfall.

Do I need to water twice a day? ›

One of the most frequently asked questions we get is how much water to use and how frequently do you water the plants. We recommend watering your plants twice daily -- early morning and late afternoon.

Should you water in the morning? ›

Drinking water first thing in the morning immediately helps rehydrate the body. Your six to eight hours of sleep is a long period to go without any water consumption. Drinking two or three glasses of water right when you wake up is a good way to rehydrate your body quickly.

Will California pay me to remove my lawn? ›

The rebate amount is based on the square footage of lawn removed and replaced, up to a maximum of 1,500 square feet. The Water Conservation Program requires that customers request a Water-Wise Landscape Consultation prior to removing a lawn for the Lawn to Garden rebate.

Why can't California save water? ›

Much of the water delivered to the Golden State in this year's storms is now flowing back into the ocean rather than being saved up for the rest of the year. That's partly due to inadequate infrastructure and limitations in how quickly the landscape can absorb water.

Is California paying residents to tear up their lawns? ›

The largest district in the state, the Metropolitan Water District serving 19 million people in Southern California, is paying $2 per square foot of grass pulled out. Water district customer cities and agencies can add more.

Can I wash my car at home in LA County? ›

No washing of vehicles allowed except at commercial car wash facilities.

How many days a week can you water in LA? ›

In addition to watering with sprinklers two days a week, hand watering with a self-closing nozzle is allowed any day of the week under the ordinance, except during the hours of 9:00 a.m. and 4:00 p.m. For information about wildfire prevention and requirements please visit

How long should sprinklers run in California? ›

How should you schedule your irrigation? Run the sprinklers 2 days a week for 18 minutes each and run them 12 minutes on a third day. Run the sprinklers for 16 minutes a day, 3 times a week. Run the sprinklers 4 times a week for 12 minutes each.

Which city in California has the hardest water? ›

Who has the hardest water in the United States? Ventura California with a water hardness or 666 PPM is the hardest water in the United States. This is among the municipal water quality reports we have documented. Ventura Water quality report 2022.

What city in California has the best drinking water? ›

BERKELEY SPRINGS, W.Va. (CBS13/AP) — A southern California water district has won the top prize for U.S. tap water at an international tasting contest.

What wastes most water in California? ›

In California, 80% of our water goes toward agriculture and 20% of that goes to tree nuts.

What is the most healthful water in California? ›

In 1973 the California State Senate declared our unique water the most healthful and the City of Carlsbad was named after it!

Does boiling tap water purify it? ›

Boiling the water kills microorganisms such as bacteria, viruses, or protozoans that can cause disease. Boiling makes the tap water microbiologically safe.

Can I trust my tap water? ›

The United States has one of the safest public water supplies in the world. However, if you are concerned about contaminants in your home's water system, contact your state drinking water certification officer to obtain a list of certified laboratories in your state.

Can a restaurant deny you water in California? ›

The United States

Visitors to particularly drought-prone states won't find this to be the case, however. In California, water conservation rules prohibit businesses from providing water unless the customer specifically asks for it.

Is it safe to drink water from bathroom tap in hotel? ›

So, essentially, hotel water is tap water that's gone through the local municipal water system. While tap water is considered potable, making it generally safe to drink, not all water sources are created equal.

Can you drink San Francisco tap water? ›

Our city's drinking water is rigorously tested, safe, delicious, and inexpensive. Choose tap over bottled water at home and on the go with our free outdoor water bottle refilling stations throughout the city.

Where does Champaign Urbana get its water? ›

The Mahomet Aquifer is the primary source of drinking water for municipalities and homeowners. It is the sole source of water for residents of Savoy, the City of Champaign, and Urbana, as well as other central Illinois communities.

What is the most common source of drinking water in Liberia? ›

Groundwater is the primary source of drinking water in rural and urban areas and is used by over 70% of the population. Limited drinking water quality studies in the country indicate widespread risks from microbial contamination.

Does Liberia have clean drinking water? ›

Abundant in rivers, rainforests, mangroves and swamps, Liberia is one of the wettest countries in the world. Yet, a large proportion of the population does not have access to clean drinking water.

Where does water in LA County come from? ›

The Los Angeles County Waterworks Districts (LACWD), a division of Los Angeles County Public Works, provides customers with water from three sources: local groundwater and water imported through the State Water Project (SWP) and the Colorado River Aqueduct (CRA).

Is it safe to drink tap water in Champaign? ›

Yes, Champaign's tap water is generally considered safe to drink as Champaign has no active health based violations of the Safe Drinking Water Act (SDWA) that we are aware of. Other factors such as lead piping in a home, or low levels of pollutants on immunocompromised individuals, should also be considered, however.

Can you drink tap water in Champaign IL? ›

For the latest quarter assessed by the U.S. EPA (January 2021 - March 2021), tap water provided by this water utility was in compliance with federal health-based drinking water standards.

Does Illinois have good tap water? ›

Chicago tap water is generally safe to drink and tastes great. Unfortunately lead is often found and even if it's usually below regulated levels there is no safe level for children.

Where is the most drinking water in the world? ›

Brazil has highest freshwater resources in the world which is accounts for approximately 12% of the world's freshwater resources. It is just because Amazon region this country contains 70% of the total freshwater. Russia has second largest freshwater reserve which is approximately 1/5 of freshwater in the world.

What country drinks the most water? ›

Units are in liters per person per year. The greatest per-capita consumption occurs in the United Arab Emirates, Mexico, and Italy—all at over 200 liters per person per year.

What is the water problem in Liberia? ›

18% of deaths in Liberia are from diarrhea, malaria, and cholera, all waterborne diseases. Out of all water fatalities, up to 90% are children under the age of five. Currently, almost 1 million Liberians are without drinking water. The Last Well has brought clean water to 4 million Liberians.

What country has the cleanest water in the world? ›

Norway is known for many unique features, and clean water is no exception. In a study published by the World Bank in 2021, Norway was found to have the cleanest water in the world.

Can you swim in Liberia? ›

Liberia has many attractive beaches, but the Atlantic Ocean is subject to rip tides and other dangerous currents. Swimmers should take care and seek local advice before entering the water. Avoid canoes and fishing boats offering passenger services. They are regularly overwhelmed by strong waves and currents.

Why is LA water white? ›

There is a potential for greater amounts of air to dissolve in the water that makes it to customers' homes. When air dissolves in the water, the water can appear milky or cloudy.

Who uses the most water in California? ›

In California, 80% of our water goes toward agriculture and 20% of that goes to tree nuts.

Where do most Californians get their water? ›

Colorado River

It's operated by the Metropolitan Water District of Southern California (MWD) and is the region's primary source of drinking water.


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