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Is St. Louis Tap Water Safe to Drink?

Yes! Generally Safe to Drink*

LAST UPDATED: 7:49 pm, August 4, 2022

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Can You Drink Tap Water in St. Louis?

Yes, St. Louis's tap water is generally considered safe to drink as St. Louis 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, St. Louis's water utility, St Louis City Pws, 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 St Louis City Pws 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.

Water Quality Report for St. Louis Tap Water

The most recent publicly available numbers for measured contaminant levels in St. Louis tap water are in its 2020 Water Quality Report. As you can see, there are levels which the EPA considers to be acceptable, but being below the maximum allowable level doesn’t necessarily mean the water is healthy.

Lead in tap water, for example, is currently allowed at up to 15ppb by the EPA, but it has set the ideal goal for lead at zero. This highlights how meeting EPA standards doesn’t necessarily mean local tap water is healthy.

EPA regulations continue to change as it evaluates the long term impacts of chemicals and updates drinking water acceptable levels. The rules around arsenic, as well as, lead and copper are currently being re-evaluated.

There are also a number of "emerging" contaminants that are not currently. For example, PFAS (Per- and polyfluoroalkyl substances), for which the EPA has issued a health advisory. PFAS are called "forever chemicals" since they tend not to break down in the environment or the human body and can accumulate over time.

We recommend looking at the contaminants present in St. Louis's water quality reports, or getting your home's tap water tested to see if you should be filtering your water.

St. Louis Tap Water Safe Drinking Water Act Violation History - Prior 10 Years

Below is a ten year history of violations for the water system named St Louis City Pws for St. Louis in Missouri. For more details please see the "What do these Violations Mean?" section below.

Is there Lead in St. Louis Water?

Based on the EPA’s ECHO Database, 90% of the samples taken from the St. Louis water system, St Louis City Pws, between sample start date and sample end date, were at or below, 0.00103 mg/L of lead in St. Louis water. This is 6.9% of the 0.015 mg/L action level. This means 10% of the samples taken from St. Louis contained more lead.

While St. Louis water testing may have found 0.00103 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 St. Louis 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 - Charles Melvin Price Support Center - near St. Louis 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 St. Louis 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.
show details
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
show details
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
show details
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
show details
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.

St. Louis Water - Frequently Asked Questions

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WHERE DOES THE WATER COME FROM?
The City of St. Louis Water Division has two water treatment plants. The Howard Bend Plant draws water from the Missouri River. The Chain of Rocks Plant is located on the Mississippi River, south of the confluence of the Missouri and Mississippi Rivers. The water reaching our intakes at the Chain of Rocks Plant is primarily Missouri River water because the two rivers have not fully mixed when the water reaches the plant. Together, the two plants produce an average of 111 million gallons of water each day.
WHAT ABOUT CONTAMINANTS?
All drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency’s Safe Drinking Water Hotline (800-426-4791). GIARDIA AND CRYPTOSPORIDIUM Giardia and Cryptosporidium are microscopic parasites that, when ingested, can result in fever, diarrhea, and other gastrointestinal complications. These organisms are found in all rivers and streams and come from animal wastes in the watershed. They are removed by effective treatment including deactivation with chlorine and precipitative softening, sedimentation, flocculation and filtration. Previous monitoring performed monthly did not detect any Cryptosporidium or Giardia in samples collected after the first stage of our multi-stage, multiple barrier treatment process at either of the City’s water purification plants. Prior monitoring showed that neither cysts nor oocysts were detected in our finished water. HEALTH RISKS Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons can be particularly at risk from infections; such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly individuals, and infants. These people should seek advice about drinking water from their health care providers. EPA/Center for Disease Control guidelines on appropriate means to lessen the risk of infection by Cryptosporidium are available from the Safe Drinking Water Hotline (800-426-4791).
HOW DO I CONTACT ST. LOUIS CUSTOMER SERVICE?
To contact customer service for the St. Louis water provider, St Louis City Pws, please use the information below.
By Mail: 1640 S KINGSHIGHWAY
ST LOUIS, MO, 63110-2285
HOW TO PAY BILL FOR ST LOUIS CITY PWS
Already have an account?

Existing customers can login to their St Louis City Pws account to pay their St. Louis water bill by clicking here.

Want to create a new account?

If you want to pay your St Louis City Pws bill online and haven't made an account yet, you can create an account online. Please click here to create your account to pay your St. Louis water bill.

Want to pay without an account?

If you don't want to make an account, or can't remember your account, you can make a one-time payment towards your St. Louis water bill without creating an account using a one time payment portal with your account number and credit or debit card. Click here to make a one time payment.

HOW TO START & STOP ST. LOUIS WATER SERVICE
Starting Your Service

Moving to a new house or apartment in St. Louis means you will often need to put the water in your name with St Louis City Pws. In order to put the water in your name, please click the link to the start service form below. Start service requests for water bills typically take two business days.

Start Service Form

Want to create a new account?

Leaving your house or apartment in St. Louis means you will likely need to take your name off of the water bill with St Louis City Pws. In order to take your name off the water bill, please click the link to the stop service form below. Stop service for water bills requests typically take two business days.

Stop Service Form

Is St. Louis Tap Water Safe to Drink? Tap water & safety quality

The estimated price of bottled water

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$2.55 in USD (1.5-liter)

USER SUBMITTED RATINGS

St. Louis tap water
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  • Drinking Water Pollution and Inaccessibility 25% Low
  • Water Pollution 37% Low
  • Drinking Water Quality and Accessibility 75% High
  • Water Quality 63% High

The above data is comprised of subjective, user submitted opinions about the water quality and pollution in St. Louis, measured on a scale from 0% (lowest) to 100% (highest).

Related FAQS

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St. Louis Water Quality Report (Consumer Confidence Report)

The EPA mandates that towns and cities consistently monitor and test their tap water. They must report their findings in an annual Consumer Confidence Report. Below is the most recent water quality report from St. Louis's Water. If you would like to see the original version of the report, please click here.

City of St. Louis Water Division

Consumer Confidence Report

2020

City of St. Louis Water Division – Department of Public Utilities 1640 S. Kingshighway – St. Louis, MO 63110-4399 314-663-9000

Curtis B. Skouby P.E. – Director of Public Utilities

Curtis B. Skouby P.E. – Water Commissioner stlwater.com

CITY OF ST. LOUIS Water Quality Report

2020

In compliance with the Safe Drinking Water Act, the City of St. Louis Water Division is delivering this Water Quality Report to all its customers who receive water bills. We ask that landlords, employers, and anyone else who receives the water bill for other water users share this report with them.

To obtain additional copies, call (314) 771-2255.

The web address of the CCR on the internet is: http://www.stlwater.com/confidence.php.

The report summarizes information that your water system collects to comply with regulations, including information on water from the Missouri and Mississippi Rivers, the levels of detected contaminants, and compliance with drinking water rules.

ST. LOUIS CITY WATER - A HISTORY OF EXCELLENCE

The Water Division is a branch of the St. Louis City government’s Department of Public Utilities. Since 1835, we have been dedicated to supplying the highest quality water to our customers. We are proud to say that in 2020, our water met or exceeded the standards set by the U.S. Environmental Protection Agency and the Missouri Department of Natural Resources. In fact, we have never violated a water quality regulation

in 116 years of testing.

Our scientists constantly monitor and test the water for over 150 possible contaminants. We analyze the water where it enters the plant as raw river water, throughout the treatment process, and at multiple points throughout the city. The frequency and thoroughness of these tests exceed federal regulations for water quality monitoring. Water quality monitoring of St. Louis City water in 2020 indicated that no compounds were detected above the allowable levels set by federal and state regulations.

The City of St. Louis Water Division is proud to be a charter member of the Partnership for Safe Water. In 1994, this organization was formed by 187 surface water utilities, several drinking water organizations, including the American Water Works Association and the Environmental Protection Agency. The Partnership’s goal is to provide a new measure of safety to millions of Americans by improving water quality nationwide.

WHERE DOES THE WATER COME FROM?

The City of St. Louis Water Division has two water treatment plants. The Howard Bend Plant draws water from the Missouri River. The Chain of Rocks Plant is located on the Mississippi River, south of the confluence of the Missouri and Mississippi Rivers. The water reaching our intakes at the Chain of Rocks Plant is primarily Missouri River water because the two rivers have not fully mixed when the water reaches the plant. Together, the two plants produce an average of 111 million gallons of water each day.

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SOURCE WATER ASSESSMENT INFORMATION

In 2004, the Missouri Department of Natural Resources (DNR) conducted a source water assessment to determine susceptibility of our source water to contamination. You can acquire the complete results by calling DNR at 1-800-361-4827 or the information can be viewed on the internet at: https://drinkingwater.missouri.edu. Our system I.D. is: 6010715. The assessment has determined that our river water source is susceptible due to the presence of potential contaminant sources. The City of St. Louis employs all available measures at its disposal to remove contamination at intakes and during the treatment process. The drinking water produced at our facilities consistently meets or exceeds all Safe Drinking Water Standards.

WHAT ABOUT CONTAMINANTS?

All drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency’s Safe Drinking Water Hotline (800-426-4791).

GIARDIA AND CRYPTOSPORIDIUM

Giardia and Cryptosporidium are microscopic parasites that, when ingested, can result in fever, diarrhea, and other gastrointestinal complications. These organisms are found in all rivers and streams and come from animal wastes in the watershed. They are removed by effective treatment including deactivation with chlorine and precipitative softening, sedimentation, flocculation and filtration. Previous monitoring performed monthly did not detect any Cryptosporidium or Giardia in samples collected after the first stage of our multi-stage, multiple barrier treatment process at either of the City’s water purification plants. Prior monitoring showed that neither cysts nor oocysts were detected in our finished water.

HEALTH RISKS

Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons can be particularly at risk from infections; such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly individuals, and infants. These people should seek advice about drinking water from their health care providers. EPA/Center for Disease Control guidelines on appropriate means to lessen the risk of infection by Cryptosporidium are available from the Safe Drinking Water Hotline (800-426-4791).

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LEAD IN DRINKING WATER

The City of St. Louis Water Division has optimized its treatment process so that the corrosion of internal plumbing is highly unlikely. However, if present, elevated levels of lead can cause serious health problems. Exposure to lead in drinking water can cause serious health effects in all age groups. Infants and children can have decreases in IQ and attention span. Lead exposure can lead to new learning and behavior problems or exacerbate existing learning and behavior problems. The children of women who are exposed to lead before or during pregnancy can have increased risk of these adverse health effects. Adults can have increased risks of heart disease, high blood pressure, kidney or nervous system problems.

Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. The City of St. Louis Water Division is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at http://www.epa.gov/safewater/lead.

FLUORIDATION

Since 1953, in accordance with St. Louis City Revised Code Chapter 11.26, the City of St. Louis Water Division has been fluoridating our customers’ drinking water. Our goal was to provide fluoridated drinking water to a target level of 1 mg/L. In December 2010, the United States Department of Health and Human Services released a report recommending that fluoridation levels in drinking water should be set at 0.7 mg/L. In January 2012, the City of St. Louis Water Division under the direction of the City of St. Louis Health Department reduced the fluoridation goal to 0.6 mg/L.

READING THE TABLES

The first table reports only regulated substances that have been found in measurable quantities in St. Louis City’s finished drinking water. While we test for 150 possible contaminants, traces of only 17 were detected in 2020. The results of the detected contaminants are listed in the table. All contaminants were detected in concentrations well below safe and acceptable limits.

The second table lists the Highest Locational Running Annual Average (LRAA) for Disinfection Byproducts at each of our distribution monitoring locations.

The third table, “Optional Monitoring (not required by EPA)”, lists non-regulated substances whose concentrations have been of interest by consumers.

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DATA FOR 2020 WATER QUALITY REPORT - City of St. Louis Water Division - MO6010715

 

Detected Contaminants

 

MCL

 

 

MCLG

 

Maximum Level

 

Range

 

 

(units)

 

 

 

 

Detected

 

 

 

 

 

 

 

 

 

 

 

 

 

Inorganic Compounds

 

 

 

 

 

 

 

 

 

 

Antimony (Total, µg/L)

 

6

 

6

 

0.23

 

0.22 – 0.23

 

 

 

 

 

 

 

 

 

 

 

Arsenic (µg/L)

 

10

 

0

 

0.39

 

0.29 – 0.39

 

 

 

 

 

 

 

 

 

 

 

Barium (mg/L)

 

2

 

2

 

0.0115

 

0.0103– 0.0115

 

 

 

 

 

 

 

 

 

 

 

Chromium (Total, µg/L)

 

100

 

100

 

1.50

 

1.43 – 1.50

 

 

 

 

 

 

 

 

 

 

 

Selenium (µg/L)

 

50

 

50

 

1.81

 

1.79 – 1.81

 

 

 

 

 

 

 

 

 

 

 

Fluoride (mg/L)

 

4

 

4

 

0.79

 

0.22 – 0.79

 

 

 

 

 

 

 

 

 

 

 

Nickel (µg/L)

 

100

 

100

 

1.27

 

1.15 – 1.27

 

 

 

 

 

 

 

 

 

 

 

 

 

Nitrate+Nitrite

 

10

 

10

 

1.17

 

1.01 – 1.17

 

(as mg/L N)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90th Percentile =

 

Number of samples

 

Lead (μg/L)* (2020)

 

AL = 15

0

 

 

above AL=0

 

 

 

1.03

 

 

 

 

 

 

 

 

 

 

Range: ND – 6.62

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90th Percentile =

 

Number of samples

 

Copper (mg/L)* (2020)

 

AL = 1.3

1.3

 

 

above AL=0

 

 

 

21.3

 

 

 

 

 

 

 

 

 

 

Range: 0.002 – 0.053

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Organic (Synthetic) Compounds

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Atrazine (μg/L)

 

3

 

3

 

1.14

 

0.57 – 1.14

 

 

 

 

 

 

 

 

 

 

 

 

Major Sources of

Contaminants

Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder

Erosion of natural deposits

Erosion of natural deposits

Erosion of natural deposits,

Industrial discharge

Erosion of natural deposits,

Industrial discharge

Water additive for dental health

Erosion of natural deposits,

Industrial discharge

Natural Deposits; Fertilizer

runoff

Corrosion of household

plumbing

Corrosion of household

plumbing

Herbicide runoff from row crops

Disinfectant/Disinfection Byproducts – See additional table for Total Trihalomethanes and Haloacetic Acids (5) on page 6

Chloramine (mg/L)

 

MRDL = 4

MRDLG = 4

3.47

 

2.29 – 3.47

 

 

 

 

 

 

 

Total Trihalomethanes

80

N/A

31.7

 

7.8 – 31.1

(μg/L)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Haloacetic Acids (5)

60

N/A

35.9

 

10.3 – 35.9

(μg/L)

 

 

 

 

 

 

 

Microbiological Data

 

 

 

 

 

 

Total Coliform Bacteria

 

5% of monthly

0

Highest Month (May): 0.60%

(% positive samples)

 

samples positive

Annual Average: 0.00%

 

 

 

 

 

 

 

 

 

Total Organic Carbon

 

TT (Required min.

 

3.50

 

2.42 – 3.50

 

15% TOC removal

N/A

 

 

 

(mg/L)

 

Annual Avg. Percent removal = 30.4%

 

from source water)

 

 

 

 

 

 

 

 

 

 

 

TT (1NTU)**

 

Highest Level = 0.09

Turbidity (NTU)**

 

 

N/A

 

 

TT = 95% of monthly

Percentage of samples below 0.3NTU =

 

 

samples <0.3NTU

 

 

100%

 

 

 

 

 

 

 

Radioactive Contaminants

 

 

 

 

 

 

 

 

 

 

 

 

 

Gross Alpha Particle

 

 

 

 

 

 

Activity, Total (pCi/L) Year

 

15

0

Not Detected

 

N/A

2013*

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Uranium (μg/L) Year

 

30

0

Not Detected

 

N/A

2013*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Disinfectant used to treat water

By-product of disinfection

By-product of disinfection

Naturally present in the

environment

Naturally present in the

environment

Soil runoff

Erosion of natural deposits

Erosion of natural deposits

5

Disinfection Byproducts by Location

Disinfection

 

 

Range of

 

 

 

 

Sample Point

LRAA

Sampled

Unit

MCL

MCLG

Typical Source

Byproducts

Result(s)

 

 

 

(low – high)

 

 

 

 

(HAA5)

DBPDUAL-02

24.7

13.3 – 35.7

ppb

60

0

By-product of disinfection

 

 

 

 

 

 

 

 

(HAA5)

DBPDUAL-03

17.9

10.3 – 30.2

ppb

60

0

By-product of disinfection

(HAA5)

DBPDUAL-04

26.3

14.7 – 35.7

ppb

60

0

By-product of disinfection

(HAA5)

DBPDUAL-06

24.8

14.1 – 34.9

ppb

60

0

By-product of disinfection

(HAA5)

DBPDUAL-08

20.8

12.4 – 35.8

ppb

60

0

By-product of disinfection

 

 

 

 

 

 

 

 

(HAA5)

DBPDUAL-10

19.3

11.7 – 30.4

ppb

60

0

By-product of disinfection

 

 

 

 

 

 

 

 

(HAA5)

DBPDUAL-12

20.1

11.8 – 34.0

ppb

60

0

By-product of disinfection

(HAA5)

DBPDUAL-13

22.2

11.5 – 33.1

ppb

60

0

By-product of disinfection

(HAA5)

DBPDUAL-14

18.7

11.1 – 31.7

ppb

60

0

By-product of disinfection

(HAA5)

DBPDUAL-15

25.8

13.9 – 35.9

ppb

60

0

By-product of disinfection

 

 

 

 

 

 

 

 

(HAA5)

DBPDUAL-18

18.6

11.8 – 30.9

ppb

60

0

By-product of disinfection

 

 

 

 

 

 

 

 

(HAA5)

DBPDUAL-28

8.4

11.2 – 32.0

ppb

60

0

By-product of disinfection

TTHM

DBPDUAL-02

16.3

8.4 – 26.0

ppb

80

0

By-product of disinfection

TTHM

DBPDUAL-03

12.9

8.1 – 21.6

ppb

80

0

By-product of disinfection

TTHM

DBPDUAL-04

17.3

7.8 – 30.3

ppb

80

0

By-product of disinfection

 

 

 

 

 

 

 

 

TTHM

DBPDUAL-06

17.1

9.2 – 27.9

ppb

80

0

By-product of disinfection

 

 

 

 

 

 

 

 

TTHM

DBPDUAL-08

12.7

8.1 – 19.8

ppb

80

0

By-product of disinfection

TTHM

DBPDUAL-10

13.1

8.2 – 21.0

ppb

80

0

By-product of disinfection

TTHM

DBPDUAL-12

13.2

8.1 – 20.6

ppb

80

0

By-product of disinfection

TTHM

DBPDUAL-13

13.3

8.2 – 21.7

ppb

80

0

By-product of disinfection

 

 

 

 

 

 

 

 

TTHM

DBPDUAL-14

15.9

8.2 – 22.7

ppb

80

0

By-product of disinfection

 

 

 

 

 

 

 

 

TTHM

DBPDUAL-15

17.6

8.7 – 31.1

ppb

80

0

By-product of disinfection

TTHM

DBPDUAL-18

13.3

8.3 – 21.5

ppb

80

0

By-product of disinfection

TTHM

DBPDUAL-28

13.0

8.0 – 21.2

ppb

80

0

By-product of disinfection

6

Optional Monitoring (not required by EPA)

Secondary Contaminants

MCL

Average Level Detected

Range

 

 

 

 

Alkalinity, Total (mg/L)

N/A

63

35 - 84

 

 

 

 

 

Aluminum (mg/L)

N/A

0.0005

0.00045

– 0.00054

 

 

 

 

 

Calcium (mg/L)

N/A

28.8

20.0

– 52.0

 

 

 

 

 

Chloride (mg/L)

250

25.7

20.4

– 31.2

 

 

 

 

Conductivity (μS/cm)

N/A

504

309 - 673

 

 

 

 

Hardness, Total (mg/L as CaCO3)

N/A

144

92 - 200

 

 

 

 

Iron (mg/L)

0.3

N.D.

N.D.

 

 

 

 

Magnesium (mg/L)

N/A

17.5

4.8 – 28.7

 

 

 

 

 

Manganese (µg/L)

50

0.32

0.15

– 0.97

 

 

 

 

 

Non Carbonate Hardness

N/A

86

35 - 131

(mg/L as CaCO3)

 

 

 

 

 

 

 

 

 

pH

N/A

9.53

9.11

– 9.97

 

 

 

 

 

Potassium (mg/L)

N/A

5.22

2.49

– 6.75

 

 

 

 

 

Sodium (mg/L)

N/A

43.9

22.3

– 72.6

 

 

 

 

Solids, Total Dissolved (TDS) (mg/L)

500

325

252 - 424

 

 

 

 

Sulfate (mg/L)

250

149

107 - 209

 

 

 

 

 

7

DEFINITIONS:

(AL) Action Level: The concentration of a compound that triggers a treatment technique or other requirement that a water system must follow.

(DL) Detection Limit: The smallest amount of a compound that can accurately be measured by the test method used.

(LRAA): Locational Running Annual Average

(MCL) Maximum Contaminant Level: The highest level of a compound allowed in drinking water.

(MCLG) Maximum Contaminant Level Goal: The level of a contaminant in drinking water below which there is no known risk to health.

(MRDL) Maximum Residual Disinfectant Level: The highest level of a disinfectant allowed in drinking water.

(MRDLG) Maximum Residual Disinfectant Level Goal: The level of a drinking water disinfectant below which there is no known or expected risk to health.

(μg/L) Microgram per Liter: One part per billion or 1 cent in $10,000,000.

(mg/L) Milligram per Liter: One part per million or 1 cent in $10,000.

(mg/L as CaCO3): Expressed as the equivalent in mg/L of Calcium Carbonate.

(as N mg/L): Expressed as the total amount of Nitrogen in mg/L. (pCi/L) Picocuries per liter is a measure of radioactivity in water.

(ND) None Detected: The concentration of a compound is less than the smallest amount that can be measured by the test method used.

(N/A) Not Applicable: This heading is not needed for this contaminant.

(NTU) Nephelometric Turbidity Units: The measurement of the amount of light scattered when a beam of light is directed through a water sample.

Range: The highest and lowest results detected for the contaminant.

(TOC): Total Organic Carbon.

  1. Treatment Technique: A required process intended to reduce the level of a contaminant in drinking water.

*The State of Missouri has reduced monitoring requirements for certain contaminants to less than once per year because the concentrations of these contaminants are not expected to vary significantly from year to year. The Lead and Copper Survey is repeated every three years. These results are the 90th percentile of the Lead and Copper Survey samples tested in 2020 for the Lead and Copper Rule. The 90th percentile means 90 percent of the samples had levels less than the values shown. Radioactive Contaminants are monitored once every nine years.

**Turbidity: Turbidity is a measure of the cloudiness of water. We monitor it because it is a good indicator of water quality. High turbidity can hinder the effectiveness of disinfectants. The maximum turbidity allowable is 1 NTU for a single sample and 0.3 NTU at the 95th percentile.

8

+

Contaminants


Missouri American St. Louis County & St. Charles County

EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the Missouri Department of Natural Resources - Public Drinking Water Program, as well as information from the U.S. EPA Enforcement and Compliance History database (ECHO). For the latest quarter assessed by the U.S. EPA (January 2019 - March 2019), tap water provided by this water utility was in compliance with federal health-based drinking water standards.

Utility details

  • Serves: 1100000
  • Data available: 2012-2017
  • Data Source: Surface water
  • Total: 26

Contaminants That Exceed Guidelines

  • Bromodichloromethane
  • Chloroform
  • Chromium (hexavalent)
  • Dibromochloromethane
  • Dichloroacetic acid
  • Nitrate
  • Nitrate and nitrite
  • Total trihalomethanes (TTHMs)
  • Trichloroacetic acid

Other Detected Contaminants

  • 1%2C4-Dioxane
  • 2%2C4-D
  • Aluminum
  • Atrazine
  • Chlorate
  • Dibromoacetic acid
  • Ethylene dibromide
  • Fluoride
  • Haloacetic acids (HAA5)
  • Hexachlorocyclopentadiene
  • Molybdenum
  • Monobromoacetic acid
  • Monochloroacetic acid
  • Selenium
  • Strontium
  • Testosterone
  • Vanadium
+

Reminder

Always take extra precautions, the water may be safe to drink when it leaves the sewage treatment plant but it may pick up pollutants during its way to your tap. We advise that you ask locals or hotel staff about the water quality. Also, note that different cities have different water mineral contents.

+

Sources and Resources

+

St. Louis Tap Water

Have you ever wondered what St. Louis tap water looks like? Many cities across the country make their own tests, and then they compare them to the samples that are tested in St. Louis to see if they match. If your city has its own water testing lab, then you might be able to see the samples that have been taken for comparison. If your water comes from a different city, or if you have never actually seen the samples, then here is how it usually looks.

First, if the water that comes out of your tap has an extremely cloudy appearance to it, then this is absolutely normal for that particular city. Cloudy water will contain more contaminants that will make it difficult for you to consistently drink without having to worry about the taste. If the water looks like it has bits of dirt or rocks in it, then that is also something that you would expect to find. If the samples come back with a clear color, or a color that is pale green or gray, then that means that your water is pretty pure overall, and there are very few contaminants within the city’s water supply.

If your water does not look like this after you have performed a home water test in St. Louis, then you may want to consider purchasing one of the home kits that can be used to test for impurities at home. The test itself can take up to a few hours to perform, depending on the amount of sediment and contaminants that you want to look at. The results will be given back to you within a few business days, and the results can tell you everything that you need to know to feel confident that you are drinking safe tap water. This is the first thing that people notice when they are near your home. If you are constantly drinking water that is unhealthy and contaminates it, then you should definitely start looking for a home water test kit. You don’t want to be surprised by what you are putting into your body on a regular basis!

St. Louis Drinking Water

The St. Louis drinking water treatment facilities are considered to be among the best in the country. However, like so many other places, they are not perfect and need improvement. If you’re one of those people that is concerned with their own health and are concerned with the water that comes into their homes, there are a number of things that you can do. For example, the Environmental Protection Agency works with municipalities around the country to test and regulate the quality of the local drinking water. If you purchase bottled water, make sure that it meets the same standards as the water that comes through your tap.

What most people do not realize is that there are contaminants in the water that have been proven to cause all sorts of illnesses, and even death. Some of the most dangerous to children and pregnant women are lead, cysts, and cancer-causing disinfection byproducts called THMs. It is also known that pregnant women can develop a variety of illnesses from drinking contaminated water. Take some time to learn more about the dangers that are present when it comes to your drinking water. As more information becomes available, we will keep this page updated.

One thing that is for certain, if you choose to drink and use tap water, make sure that you get quality St. Louis drinking water. You want to protect your health, and ensure that your family remains healthy. Make sure that you take the time to find a good quality system and filter, one that can handle your particular needs. Once you start using it, you will soon find that there is no better way to receive quality water than with a quality system.

St. Louis Water

St. Louis is known for the great drinking water that it provides and for good reason. This is a large metropolitan area with lots of population. It’s not uncommon to find people camping out in tents in the summer, enjoying the outdoor attractions of this unique city. That’s why it’s important that the water that you drink is safe and clean. St. Louis is fortunate to have a number of great water treatment plants that are able to provide you with that clean, safe water. The following is a brief description of a few of the water treatment plants in St. Louis.

Westbank Water Treatment Plant is located in Chester County, near St. Louis City. The main mission of this facility is to treat untreated waste water from homes, businesses and the river. They offer a variety of filtration systems, including whole house filtration and carbon block filter systems for kitchen and bathroom use. They also provide a drinking water dispenser to guests on site. Westbank is one of the oldest active drinking water treatment facilities in the country.

St. Louis Public Health and Wellness Pool are a facility that was established in 1958. The purpose of the St. Louis Public Health and Wellness Pool is to provide individuals with a natural, non-chemical alternative to drinking contaminated tap water. They operate two treatment centers including one that treats sewerage water and another that treat the drinking water. They also provide a recreation pool for local residents and visitors. The well that they use is positioned beneath the city limits so that it is above ground and is accessible to residents.

St. Louis Water Quality

St. Louis water quality is a big concern in southern Missouri. There are many homes and businesses that are located along the river and most of the drinking water that makes it to your tap has to be treated. If you do not have bottled water, then it becomes even more important. If there is bad quality, you may end up having to make a costly trip to the bottled water treatment facility. The Missouri Department of Health and Senior Services office has been providing information and facts on water quality issues for years.

St. Louis is fortunate to have a whole city that does not depend on any particular source of water for its consumption. This means there are no major companies that control the amount of water coming into the city. However, this does not mean that there are not harmful pollutants in the water. There are many different chemical treatment plants that are in close proximity to the city. Those facilities can add chemicals to the water to make it safer, but they cannot eliminate all sources of pollution in the water.

Most people are aware that St. Louis is known for large concentrations of prescription drugs. There are also reports that indicate that cancer rates are significantly higher in the area than in the rest of the country. Because of all of this, it is very important that everyone, especially children, drink plenty of pure water. When you are looking for a water purification system, make sure that it can provide you with the kind of water quality that you want, whether you are in the suburbs of St. Louis or in the city.

St. Louis Water Treatment

St. Louis water treatment facilities are certified by the American Water Works Association and are considered to be amongst the best in the country. In fact, the St. Louis Public Health department has recognized them as such and gives them an award for the excellence in their services. The St. Louis water treatment station is committed to protecting the community from the threat posed by untreated water and to maintaining the quality of drinking water for all the residents of St. Louis City. You can have confidence that your drinking water will not carry any disease or condition that could harm you or your loved ones. Even if you live just a block away, you will be safe from unwanted bacteria because the water is filtered and disinfected at the treatment station.

A St. Louis water treatment station also performs important functions such as testing the water for its hardness or softness before distributing it to different customer premises. This enables the users of the water to determine which water softener is the best for their home according to the level of usage. Whether you are having one faucet or an entire house, the water treatment station will ensure clean, fresh drinking water at all times.

If there are any problems with the water supply at your place, you can call the water treatment station at anytime for emergency assistance. The representatives of the company will come to your rescue at any time of the day. For large commercial and office buildings, the entire building needs to be cleaned periodically by the professionals who use purification methods to purify and filter the water supply. If you live in a residential area, then there are private companies who offer water softening services to individual homeowners. This helps them cut down on the use of water so that they save money on their electricity bill as well.

St. Louis Source of Water

There are many cities in the US; however St. Louis is one of the most famous, and it is no surprise that the city is called such. This St. Louis region is known for its natural beauty and is often used by those who want to escape the busy city life. The St. Louis River is one of the most scenic rivers in the US and offers a great view of the river and the entire area; this makes it a very beautiful location for bird watchers to visit and enjoy seeing various species of birds. St. Louis is also home to many popular outdoor activities and sports, which make it a popular destination for outdoor enthusiasts as well.

The most popular and common water supply in St. Louis is the City of St. Louis Lake; this is a public facility where all residents can take advantage of. You can find this city’s water distributed throughout the city or you can purchase bottled water from a number of companies. Water is available from your tap; however, if you are not sure where this water comes from; you may ask the clerk at your local store. If you enjoy fishing, you will like St. Louis’ bait ponds and lake, where you can catch many species of fish. There are also other fishing options available if you are looking to go out into the waters.

The St. Louis Zoo is located in the city; and this is a great destination for people who love to go to the zoo. If you enjoy taking pictures, there are a number of studios that allow their customers to do so as well. St. Louis is a great place to go on vacation and there are a number of things to do while you are there. You can enjoy a great show at the Gateway Arch or visit the American Civil War battlefields in nearby Washington, D.C. There are many reasons why St. Louis is one of the best cities to live in; and with plenty of water and plenty of activities; this can be a challenging but fun place to live.

St. Louis Water Department

The St. Louis water and sewage department, the main regional water treatment facility, serves the entire metropolitan area. It treats all of the water going into the city as well as discharging it into the sewer system for use in homes, businesses, and other locations. With the St. Louis sewer system, all of the treated sewage goes through a large industrial facility, where ultra-fine sands are used to remove all of the debris from the sewage. Once this is done, the water is then released into the river and rivers. This process occurs continuously throughout the state as sewage treatment plants in various cities discharge their treated sewage into the environment.

In addition to treating the sewage, the St. Louis water purification facility will also cleanse the water of all sediment and organic material. This will ensure that the water does not become contaminated with toxins or harmful bacteria and germs. The St. Louis water treatment plant will be doing its best to clean the water for people to drink. However, with all of the pollutants and other substances floating around in the atmosphere, it can be hard for the filtering machines to adequately remove all of the contaminants. For this reason, some residents have had to install filters on their kitchen faucets or showers in order to enjoy clean water. The St. Louis drinking water treatment center allows people to purchase bottled water at the store or online.

Even though there are several St. Louis water treatment facilities, not all of them offer the same quality of service. It is important for each person to make sure that they are selecting a company that will treat their water in the most effective way. The St. Louis drinking water treatment center will only be able to remove contaminants that are larger than a water molecule, so it is important to buy the right filter to remove any microscopic organisms. If you live in the St. Louis area, there are several companies that provide excellent customer service and great prices, so finding one should be easy.

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